Insulin Resistance | PreDiabetes

Insulin Resistance and Hypoglycemia-Associated Autonomic Failure (HAAF) are conditions that can occur independently of diabetes but often associated with it.

Insulin resistance refers to a condition in which the body’s cells don’t respond properly to insulin, a hormone that helps regulate blood sugar levels. This can lead to higher levels of insulin in the blood, which can contribute to various health problems, including type 2 diabetes.

Hypoglycemia-associated autonomic failure (HAAF) is a condition in which repeated episodes of hypoglycemia (low blood sugar) lead to a blunted response of the body’s autonomic vasomotor system to subsequent episodes. This can result in an impaired ability to detect and respond to low blood sugar levels, putting affected individuals at risk for severe hypoglycemia. Which creates ambiguous, ubiquitous and confusing symptoms leading to the diagnosis of “Syndromes” or popular diagnosis du jours.

While these conditions can occur in people with diabetes, they can also occur in individuals without diabetes. Most people will never develop full diabetes blood markers, signs or symptoms. For example, insulin resistance can be seen in conditions such as polycystic ovary syndrome (PCOS) or obesity, while HAAF can occur in individuals who experience frequent episodes of hypoglycemia for other reasons, such as certain medications or rare medical conditions. It is curious that Metformin, a diabetes drug is helpful in lowering cholesterol,1Gillani SW, Ghayedi N, Roosta P, Seddigh P, Nasiri O. Effect of Metformin on Lipid Profiles of Type 2 Diabetes Mellitus: A Meta-analysis of Randomized Controlled Trials. J Pharm Bioallied Sci. 2021 Jan-Mar;13(1):76-82.,2Luo, F., Das, A., Chen, J. et al. Metformin in patients with and without diabetes: a paradigm shift in cardiovascular disease management. Cardiovasc Diabetol 18, 54 (2019).,3Xu T, Brandmaier S, Messias AC et al. Effects of metformin on metabolite profiles and LDL cholesterol in patients with type 2 diabetes. Diabetes Care 2015. doi: 10.2337/dc15-0658. 4Genuth S, Eastman R, Kahn R et al. Implications of the United Kingdom prospective diabetes study. Diabetes Care 2003;26(1):S28-32. 5Wulffele MG, Kooy A, De Zeeuw D et al. The effect of metformin on blood pressure, plasma cholesterol and triglycerides in type 2 diabetes mellitus: a systematic review. J Intern Med 2004;256(1):1–14. PCOS, 6Attia G M, Almouteri M M, Alnakhli F T (August 31, 2023) Role of Metformin in Polycystic Ovary Syndrome (PCOS)-Related Infertility. Cureus 15(8): e44493. doi:10.7759/cureus.44493,7Johnson NP. Metformin use in women with polycystic ovary syndrome. Ann Transl Med. 2014 Jun;2(6):56.,8Nestler JE, Metformin for the treatment of the polycystic ovary syndrome. N Engl J Med. 2008;358(1):47. ,9Metformin Therapy for the Management of Infertility in Women with Polycystic Ovary Syndrome: Scientific Impact Paper No. 13. BJOG. 2017;124(12):e306. Epub 2017 Aug 23.,10Barbieri RL. Metformin for the treatment of polycystic ovary syndrome. Obstet Gynecol. April 2003;101:785-93.,11Morteza Taghavi S, Rokni H & Fatemi S 2011 Metformin decreases thyrotropin in overweight women with polycystic ovarian syndrome and hypothyroidism. Diabetes and Vascular Disease Research 8 47–48. and Hypothyroid,12Haroon S, Khan K, Maqsood M, et al. (February 11, 2021) Exploring the Effect of Metformin to Lower Thyroid-Stimulating Hormone in Euthyroid and Hypothyroid Type-2 Diabetic Patients. Cureus 13(2): e13283.,13Pappa T, Alevizaki M. Metformin and thyroid: an update. Eur Thyroid J. 2013 Mar;2(1):22-8. doi: 10.1159/000346248. Epub 2013 Jan 19.,14Karimifar M, Aminorroaya A, Amini M, Mirfendereski T, Iraj B, Feizi A, Norozi A. Effect of metformin on thyroid stimulating hormone and thyroid volume in patients with prediabetes: A randomized placebo-controlled clinical trial. J Res Med Sci. 2014 Nov;19(11):1019-26.,15Isidro ML, Penín MA, Nemiña R & Cordido F 2007 Metformin reduces thyrotropin levels in obese, diabetic women with primary hypothyroidism on thyroxine replacement therapy. Endocrine 32 79–82.,16Cappelli C, Rotondi M, Pirola I, Agosti B, Gandossi E, Valentini U, De Martino E, Cimino A, Chiovato L & Agabiti-Rosei E et al. 2009 TSH-lowering effect of metformin in type 2 diabetic patients: differences between euthyroid, untreated hypothyroid, and euthyroid on L-T4 therapy patients. Diabetes Care 32 1589–1590.,17Morteza Taghavi S, Rokni H & Fatemi S 2011 Metformin decreases thyrotropin in overweight women with polycystic ovarian syndrome and hypothyroidism. Diabetes and Vascular Disease Research 8 47–48.

It’s important for individuals experiencing symptoms of insulin resistance or HAAF to consult with a healthcare professional for proper diagnosis and management. Treatment may involve lifestyle changes, medication, or other interventions aimed at improving insulin sensitivity and preventing episodes of hypoglycemia.

Clinical Pearl

  • People with pre-diabetes or insulin resistance also can have low or normal blood sugars, if their high circulating insulin levels are further challenged by a prolonged period of fasting or dietary restriction, e.g. food allergy/sensitivities, Paleo, Keto, Vegan, Vegetarian, etc. 
  • Red Blood Cell (RBC) agglutination (stuck together, shed oxygen) has been consistently associated with insulin resistance.
  • Insulin Resistance deprives all parts of the body of glucose and oxygen. Both of which are delivered through the blood.

Symptoms of Insulin Resistance

  • Autonomic Dysfunction (AD)S.18Julius, M. Valentini, and P. Palatini, “Overweight and hypertension: a 2-way street?” Hypertension, vol. 35, no. 3, pp. 807–813, 2000.,19Alicia A. Thorp, Markus P. Schlaich, “Relevance of Sympathetic Nervous System Activation in Obesity and Metabolic Syndrome”, Journal of Diabetes Research, vol. 2015, Article ID 341583, 11 pages, 2015.  
    • Vasomotor Imbalance20Alicia A. Thorp, Markus P. Schlaich, “Relevance of Sympathetic Nervous System Activation in Obesity and Metabolic Syndrome”, Journal of Diabetes Research, vol. 2015, Article ID 341583, 11 pages, 2015.,21J. Fagius, “Sympathetic nerve activity in metabolic control some basic concepts,” Acta Physiologica Scandinavica, vol. 177, no. 3, pp. 337–343, 2003.
    • Poor Sampling of Hormones by Hypothalamus-Pituitary Axes (HPA, HPT, HPG, HPD, Blood glucose control)22K. O’Dea, M. Esler, P. Leonard, J. R. Stockigt, and P. Nestel, “Noradrenaline turnover during under- and over-eating in normal weight subjects,” Metabolism, vol. 31, no. 9, pp. 896–899, 1982.,23L. J. Aronne, R.Mackintosh, M. Rosenbaum, R. L. Leibel, and J. Hirsch, “Autonomic nervous system activity in weight gain and weight loss,” The American Journal of Physiology, vol. 269, no. 1, part 2, pp. R222–R225, 1995.,24S.Welle, R. G. Schwartz, and M. Statt, “Reduced metabolic rate during 𝛽-adrenergic blockade in humans,”Metabolism: Clinical and Experimental, vol. 40, no. 6, pp. 619–622, 1991.,25M. J. Lohse, “Molecular mechanisms of membrane receptor desensitization,” Biochimica et Biophysica Acta—Molecular Cell Research, vol. 1179, no. 2, pp. 171–188, 1993.,26W. P. Hausdorff, M. G. Caron, and R. J. Lefkowitz, “Turning off the signal: desensitization of 𝛽-adrenergic receptor function,” The FASEB Journal, vol. 4, no. 11, pp. 2881–2889, 1990.,27Alicia A. Thorp, Markus P. Schlaich, “Relevance of Sympathetic Nervous System Activation in Obesity and Metabolic Syndrome”, Journal of Diabetes Research, vol. 2015, Article ID 341583, 11 pages, 2015.,28R. R. Townsend and S. Klein, “Lipolytic sensitivity and response to fasting in normotensive and hypertensive obese humans,” Metabolism: Clinical and Experimental, vol. 46, no. 9, pp. 1080–1084, 1997.,29H. Lithell, T. Pollare, C. Berne, and B. Saltin, “Themetabolic and circulatory response to beta-blockade in hypertensive men is correlated tomuscle capillary density.,” Blood pressure, vol. 1, no. 1, pp. 20–26, 1992.,30S. Rossner, C. L. Taylor, R. P. Byington, and C. D. Furberg, “Long term propranolol treatment and changes in body weight after myocardial infarction,” British Medical Journal, vol. 300, no. 6729, pp. 902–903, 1990. 
    • Adrenal Fatigue31Z. S. K. Lee, J. A. J. H. Critchley, B. Tomlinson et al., “Urinary epinephrine and norepinephrine interrelations with obesity, insulin, and the metabolic syndrome in Hong Kong Chinese,” Metabolism: Clinical and Experimental, vol. 50, no. 2, pp. 135–143, 2001.,32N. E. Straznicky, E. A. Lambert, G. W. Lambert, K. Masuo, M. D. Esler, and P. J. Nestel, “Effects of dietary weight loss on sympathetic activity and cardiac risk factors associated with the metabolic syndrome,” Journal of Clinical Endocrinology and Metabolism, vol. 90, no. 11, pp. 5998–6005, 2005.,33N. E. Straznicky, N. Eikelis, E. A. Lambert, and M. D. Esler, “Mediators of sympathetic activation in metabolic syndrome obesity,” Current Hypertension Reports, vol. 10, no. 6, pp. 440–447, 2008.,34G. Grassi, R. Dell’Oro, F. Quarti-Trevano et al., “Neuroadrenergic and reflex abnormalities in patients with metabolic syndrome,” Diabetologia, vol. 48, no. 7, pp. 1359–1365, 2005.,35M. Schlaich, N. Straznicky, E. Lambert, and G. Lambert, “Metabolic syndrome: a sympathetic disease?” The Lancet Diabetes and Endocrinology, vol. 3, no. 2, pp. 148–157, 2015.,36Alicia A. Thorp, Markus P. Schlaich, “Relevance of Sympathetic Nervous System Activation in Obesity and Metabolic Syndrome”, Journal of Diabetes Research, vol. 2015, Article ID 341583, 11 pages, 2015.
  • Sleep Issues37Córdoba J, Cabrera J, Lataif L, Penev P, Zee P, Blei AT. High prevalence of sleep disturbance in cirrhosis. Hepatology 1998; 27: 339-345,38Franco RA, Ashwathnarayan R, Deshpandee A, Knox J, Daniel J, Eastwood D, Franco J, Saeian K. The high prevalence of restless legs syndrome symptoms in liver disease in an academic-based hepatology practice. J Clin Sleep Med 2008; 4: 45-49,39Martino ME, Romero-Vives M, Fern ndez-Lorente J, De Vicente E, B rcena R, Gaztelu JM. Sleep electroencephalogram alterations disclose initial stage of encephalopathy. Methods Find Exp Clin Pharmacol 2002; 24 Suppl D: 119-122,40Mostacci B, Ferlisi M, Baldi Antognini A, Sama C, Morelli C, Mondini S, Cirignotta F. Sleep disturbance and daytime sleepiness in patients with cirrhosis: a case control study. Neurol Sci 2008; 29: 237-240
    • Inability to stay asleep at night. (Sympathetic over-ride)41K. G. M. M. Alberti, P. Zimmet, and J. Shaw, “The metabolic syndrome—a new worldwide definition,” The Lancet, vol. 366, no. 9491, pp. 1059–1062, 2005.,42E. S. Ford, “Risks for all-cause mortality, cardiovascular disease, and diabetes associated with the metabolic syndrome: a summary of the evidence,” Diabetes Care, vol. 28, no. 7, pp. 1769–1778, 2005.,43S. Malik, N. D. Wong, S. S. Franklin et al., “Impact of the metabolic syndrome on mortality from coronary heart disease, cardiovascular disease, and all causes in United States adults,” Circulation, vol. 110, no. 10, pp. 1245–1250, 2004.,44J. M. Dekker,C.Girman, T. Rhodes et al., “Metabolic syndrome and 10-year cardiovascular disease risk in the Hoorn Study,” Circulation, vol. 112, no. 5, pp. 666–673, 2005.,45Perciaccante A, Fiorentini A, Paris A, Serra P, Tubani L. Circadian rhythm of the autonomic nervous system in insulin resistant subjects with normoglycemia, impaired fasting glycemia, impaired glucose tolerance, type 2 diabetes mellitus. BMC Cardiovasc Disord. 2006 May 2;6:19,46N. E. Straznicky, E. A. Lambert, G. W. Lambert, K. Masuo, M. D. Esler, and P. J. Nestel, “Effects of dietary weight loss on sympathetic activity and cardiac risk factors associated with the metabolic syndrome,” Journal of Clinical Endocrinology and Metabolism, vol. 90, no. 11, pp. 5998–6005, 2005.,47G. E. Alvarez, S. D. Beske, T. P. Ballard, and K. P. Davy, “Sympathetic neural activation in visceral obesity,” Circulation, vol. 106, no. 20, pp. 2533–2536, 2002.,48N. E. Straznicky, N. Eikelis, E. A. Lambert, and M. D. Esler, “Mediators of sympathetic activation in metabolic syndrome obesity,” Current Hypertension Reports, vol. 10, no. 6, pp. 440–447, 2008.,49G.Grassi, G. Seravalle, M. Colombo et al., “Body weight reduction, sympathetic nerve traffic, and arterial baroreflex in obese normotensive humans,” Circulation, vol. 97, no. 20, pp. 2037–2042, 1998.,50C. L. Gentile, J. S. Orr, B. M. Davy, and K. P. Davy, “Modest weight gain is associated with sympathetic neural activation in nonobese humans,” The American Journal of Physiology—Regulatory Integrative and Comparative Physiology, vol. 292, no. 5, pp. R1834–R1838, 2007. 
    • Excess Daytime Sleepiness (body goes into Power-Saver Mode)51Peppard PE, Young T, Barnet JH, et al. Increased Prevalence of Sleep-Disordered Breathing in Adults. Am J Epidemiol 2013;177:1006-14.,52McNicholas WT, Bonsigore MR; Management Committee of EU COST ACTION B26. Sleep apnoea as an independent risk factor for cardiovascular disease: current evidence, basic mechanisms and research priorities. Eur Respir J 2007;29:156-78.,53Kent BD, McNicholas WT, Ryan S. Insulin resistance, glucose intolerance and diabetes mellitus in obstructive sleep apnoea. J Thorac Dis. 2015;7(8):1343-1357.,54Maria R. Bonsignore, Cristina Esquinas, Antonia Barceló, Manuel Sanchez-de-la-Torre, Alessandra Paternó, Joaquin Duran-Cantolla, José M. Marín, Ferran Barbé. Metabolic syndrome, insulin resistance and sleepiness in real-life obstructive sleep apnoea. European Respiratory Journal May 2012, 39 (5) 1136-1143
  • Thermogenesis (Sympathetic over-ride)
    • Also know as “Hot Flashes”.55Alicia A. Thorp, Markus P. Schlaich, “Relevance of Sympathetic Nervous System Activation in Obesity and Metabolic Syndrome”, Journal of Diabetes Research, vol. 2015, Article ID 341583, 11 pages, 2015.,56L. Landsberg, “Insulin-mediated sympathetic stimulation: role in the pathogenesis of obesity-related hypertension (or, how insulin affects blood pressure, and why),” Journal of Hypertension, vol. 19, no. 3, part 2, pp. 523–528, 2001.,57L. J. Aronne, R.Mackintosh, M. Rosenbaum, R. L. Leibel, and J. Hirsch, “Autonomic nervous system activity in weight gain and weight loss,” The American Journal of Physiology, vol. 269, no. 1, part 2, pp. R222–R225, 1995.
  • Hypoglycemic-Associated Autonomic Dysfunction (HAAF)
    • Patients with Insulin Resistance are likely to have impaired awareness of their hypoglycemia, termed Hypoglycemia Unawareness (HU).58Cryer PE. Mechanisms of sympathoadrenal failure and hypoglycemia in diabetes. J Clin Invest. 2006 Jun;116(6):1470-3. doi: 10.1172/JCI28735.,59Cryer PE. Mechanisms of hypoglycemia-associated autonomic failure and its component syndromes in diabetes. Diabetes. 2005 Dec;54(12):3592-601. doi: 10.2337/diabetes.54.12.3592. PMID: 16306382.,60Cryer PE. Diverse causes of hypoglycemia-associated autonomic failure in diabetes. N Engl J Med. 2004 May 27;350(22):2272-9. doi: 10.1056/NEJMra031354. PMID: 15163777.  
    • Women are more prone to Hypoglycemic Unawareness.
    • The strongest risk factor for future hypoglycemia is the number of prior hypoglycemic events;
    • AD is common in Insulin Resistance / Metabolic Syndrome patients, and in those who suffer Iatrogenic Hypoglycemia61Chittineni C, Driver BE, Halverson M, et al. Incidence and Causes of Iatrogenic Hypoglycemia in the Emergency Department. West J Emerg Med. 2019;20(5):833-837. ,62Allison MG, McCurdy MT. Alcoholic metabolic emergencies. Emerg Med Clin North Am. 2014;32(2):293–301.,63Khanimov I, Shimonov M, Wainstein J, Leibovitz E. Hypoglycemia, Malnutrition and Body Composition. Adv Exp Med Biol. 2021;1307:71-84. doi: 10.1007/5584_2020_526. Erratum in: Adv Exp Med Biol. 2021;1307:577.,64Cryer PE. Iatrogenic hypoglycemia as a cause of hypoglycemia-associated autonomic failure in IDDM. A vicious cycle. Diabetes. 1992 Mar;41(3):255-60. there is a hypoglycemia-associated autonomic failure (HAAF).65Cryer PE. Hypoglycemia in diabetes: pathophysiological mechanisms and diurnal variation. Prog Brain Res. 2006;153:361–365 This is a result of decreased response of adrenaline and the SNS to hypoglycemia
  • Hypoglycemic Unawareness (HU)
    • AD creates hypoglycemic unawareness, and therefore a vicious circle of worsening AD.66Cryer PE. Diverse causes of hypoglycemia-associated autonomic failure in diabetes. N Engl J Med. 2004;350(22):2272–2279.,
  • Blood sugar/glucose – High.
    • Mild, brief periods of low blood sugar are normal during the day, especially if meals are not eaten on a regular schedule. But prolonged hyperglycemia with some of the symptoms listed here, especially physical and mental fatigue, are not normal. 
    • Feeling agitated, jittery, moody, nauseated, or having a headache is common in Insulin Resistance, without immediate relief once food is eaten.
  • Blood sugar / glucose – Low or Normal
    • Low Blood Sugar / Glucose
      • Occurs with Hypoglycemic Associated Autonomic Failure (HAAF) and/or Hypoglycemic Unawareness (HU).
    • Prolonged Period of Fasting or Dietary Restriction
      • People with pre-diabetes or insulin resistance also can have low or normal blood sugars, if their high circulating insulin levels are further challenged by a prolonged period of fasting or dietary restriction, e.g. food allergy/sensitivities, Paleo, Keto, Vegan, Vegetarian, etc.
  • Bone Health
    • The higher the degree of insulin resistance, the greater the risk of osteoporosis.67Ming Zhuo, Ze Chen, Mao-Lin Zhong, et.al., Association of insulin resistance with bone mineral density in a nationwide health check-up population in China, Bone, Volume 170, 2023, 116703, ISSN 8756-3282,,68Gu, P., Pu, B., Xin, Q. et al. The metabolic score of insulin resistance is positively correlated with bone mineral density in postmenopausal patients with type 2 diabetes mellitus. Sci Rep 13, 8796 (2023).,69Fu YH, Liu WJ, Lee CL, Wang JS. Associations of insulin resistance and insulin secretion with bone mineral density and osteoporosis in a general population. Front Endocrinol (Lausanne). 2022 Sep 20;13:971960.,70Choo MS, Choi SR, Han JH, Lee SH, Shim YS (2017) Association of insulin resistance with near peak bone mass in the femur and lumbar spine of Korean adults aged 25-35: The Korean National Health and Nutrition Examination Survey 2008-2010. PLoS ONE 12(7): e0177311.,71Nicola Napoli, Caterina Conte, Claudio Pedone, Elsa S Strotmeyer, Kamil E Barbour, Dennis M Black, Elizabeth J Samelson, Ann V Schwartz, Effect of Insulin Resistance on BMD and Fracture Risk in Older Adults, The Journal of Clinical Endocrinology & Metabolism, Volume 104, Issue 8, August 2019, Pages 3303–3310,, 72Shieh, A., Greendale, G.A., Cauley, J.A. et al. Prediabetes and insulin resistance are associated with lower trabecular bone score (TBS): cross-sectional results from the Study of Women’s Health Across the Nation TBS Study. Osteoporos Int 33, 1365–1372 (2022).,73Kathryn M. Thrailkill, Charles K. Lumpkin, Jr., R. Clay Bunn, Stephen F. Kemp, and John L. Fowlkes. Is insulin an anabolic agent in bone? Dissecting the diabetic bone for clues. American Journal of Physiology-Endocrinology and Metabolism 2005 289:5, E735-E745    
This makes it NOT a calcium deficiency.
  • Brain fogginess and inability to focus.
    • Brain requires oxygen and glucose to function efficiently. Insulin Resistance deprives the brain of the necessary oxygen and glucose.74Cetinkalp S, Simsir IY, Ertek S. Insulin resistance in brain and possible therapeutic approaches. Curr Vasc Pharmacol. 2014;12(4):553-64.,75Islam MR, Nyholt DR. Glucose-Related Traits and Risk of Migraine-A Potential Mechanism and Treatment Consideration. Genes (Basel). 2022 Apr 22;13(5):730.,76Diamant M. Brain insulin signalling in the regulation of energy balance and peripheral metabolism. Ideggyogy Sz. 2007 Mar 30;60(3-4):97-108.,77Williamson R, McNeilly A, Sutherland C. Insulin resistance in the brain: an old-age or new-age problem? Biochem Pharmacol. 2012 Sep 15;84(6):737-45.,78Milstein JL, Ferris HA. The brain as an insulin-sensitive metabolic organ. Mol Metab. 2021 Oct;52:101234. doi: 10.1016/j.molmet.2021.101234. Epub 2021 Apr 15.,79Ma L, Wang J, Li Y. Insulin resistance and cognitive dysfunction. Clin Chim Acta. 2015 Apr 15;444:18-23. doi: 10.1016/j.cca.2015.01.027.
    • Insulin resistance influences brain function by its action on cerebral glucose metabolism and on neurodegeneration.80Femminella GD, Livingston NR, Raza S, et. al. Does insulin resistance influence neurodegeneration in non-diabetic Alzheimer’s subjects? Alzheimers Res Ther. 2021 Feb 17;13(1):47. doi: 10.1186/s13195-021-00784-w. PMID: 33597002; PMCID: PMC7890851.  
    • RBC agglutination slows blood flow to the muscles, nerves and all parts of the body. RBC agglutination causes RBCs to shed oxygen. Further depriving all of the body of oxygen and glucose.  
  • Cardiovascular disease81Alicia A. Thorp, Markus P. Schlaich, “Relevance of Sympathetic Nervous System Activation in Obesity and Metabolic Syndrome”, Journal of Diabetes Research, vol. 2015, Article ID 341583, 11 pages, 2015.,82Perciaccante A, Fiorentini A, Paris A, Serra P, Tubani L. Circadian rhythm of the autonomic nervous system in insulin resistant subjects with normoglycemia, impaired fasting glycemia, impaired glucose tolerance, type 2 diabetes mellitus. BMC Cardiovasc Disord. 2006 May 2;6:19,83K. G. M. M. Alberti, P. Zimmet, and J. Shaw, “The metabolic syndrome—a new worldwide definition,” The Lancet, vol. 366, no. 9491, pp. 1059–1062, 2005.,84Reaven G. The metabolic syndrome or the insulin resistance syndrome? different names, different concepts, and different goals. Endocrinol Metab Clin North Am. 2004;33(2):283-303.,85Wilcox G. Insulin and insulin resistance. Clin Biochem Rev. 2005;26(2):19-39.  
    • RBC Agglutination causes RBCs to shed oxygen. Especially in turbulent areas, i.e. heart blood vessels. Free oxygen becomes destructive Reactive Oxygen Species (free-radicals) that damage interior of blood vessels. Cholesterol is used to spackle over the damaged areas.
  • Depression.
    • Insulin resistance does not change with antidepressant treatment.86Woo YS, Lim HK, Wang SM, Bahk WM. Clinical Evidence of Antidepressant Effects of Insulin and Anti-Hyperglycemic Agents and Implications for the Pathophysiology of Depression-A Literature Review. Int J Mol Sci. 2020 Sep 22;21(18):6969.,87Fernandes BS, Salagre E, Enduru N, Grande I, Vieta E, Zhao Z. Insulin resistance in depression: A large meta-analysis of metabolic parameters and variation. Neurosci Biobehav Rev. 2022 Aug;139:104758. 
    • Insulin resistance is increased in depression during acute episodes.88Watson KT, Simard JF, Henderson VW, Nutkiewicz L, Lamers F, Rasgon N, Penninx B. Association of Insulin Resistance With Depression Severity and Remission Status: Defining a Metabolic Endophenotype of Depression. JAMA Psychiatry. 2021 Apr 1;78(4):439-441.,89Fernandes BS, Salagre E, Enduru N, Grande I, Vieta E, Zhao Z. Insulin resistance in depression: A large meta-analysis of metabolic parameters and variation. Neurosci Biobehav Rev. 2022 Aug;139:104758.,90Reaven G. The metabolic syndrome or the insulin resistance syndrome? different names, different concepts, and different goals. Endocrinol Metab Clin North Am. 2004;33(2):283-303.,91Wilcox G. Insulin and insulin resistance. Clin Biochem Rev. 2005;26(2):19-39.,92Smith DJ. Insulin resistance and depression: difference in patient groups could have been explained by other factors. BMJ. 2005 Apr 23;330(7497):965; ,93Singh MK, Leslie SM, Packer MM, Zaiko YV, Phillips OR, Weisman EF, Wall DM, Jo B, Rasgon N. Brain and behavioral correlates of insulin resistance in youth with depression and obesity. Horm Behav. 2019 Feb;108:73-83.,94Okamura F, Tashiro A, Utumi A, Imai T, Suchi T, Tamura D, Sato Y, Suzuki S, Hongo M. Insulin resistance in patients with depression and its changes during the clinical course of depression: minimal model analysis. Metabolism. 2000 Oct;49(10):1255-60.    
    • When the brain is deprived of oxygen and glucose, brain function slows down, going into power saver mode creating the symptoms of “depression”. 
    • Brain requires oxygen and glucose to function efficiently. Insulin Resistance deprives the brain of the necessary oxygen and glucose.  
    • RBC agglutination slows blood flow to the brain. Further depriving the brain of oxygen and glucose.
  • Dyslipidemia – Increased cholesterol and triglycerides.
    • High Cholesterol, LDL increase the stickiness of Red Blood Cells – RBC Agglutination.
    • Hypoxia (Low Oxygen):
      • High Cholesterol, LDL decreases the delivery and availability of oxygen to the tissues of the body.95A. G. Marachev, Morphological Bases of Adaptation and Pathology of Human Lungs, Heart and Red Blood in the Far North Dissertation, Moscow, 1980.,96A. G. Marachev, V. I. Sorokovoi, and A. V. Kornev, “Bioenergy of red blood cells in the inhabitants of the north,” Therapeutic archive, vol. 8, no. 3, pp. 407–415, 1982.,97L. E. Panin, Energy Aspects of Adaptation, Medicine, Leningrad, 1978.,98L. E. Panin, “Man in extreme conditions in the Arctic,” Bulletin of the Siberian Branch of the Russian Academy of Medical Sciences, vol. 30, no. 3, pp. 92–98, 2010.,99N. W. Tietz and P. R. Finley, Сlinical Guide to Laboratory Tests, Philadelphia, 1983.,100K. Kon, N. Maeda, M. Sekiya, T. Shiga, and T. Suda, “A method for studying oxygen diffusion barrier in erythrocytes: effects of haemoglobin content and membrane cholesterol,” The Journal of Physiology, vol. 309, no. 1, pp. 569–590, 1980.,101A. Marachev, L. Solovenchyk, and A. Lapynsky, “Adaptive changes in lipid composition of membranes in the inhabitants of the north,” Arctic Medical Research, vol. 51, no. 2, pp. 98–102, 1992.,102L. K. Dobrodeeva, A. V. Samodova, S. N. Balashova, K. O. Pashinskaya, “Intercellular Interactions in Peripheral Venous Blood in Practically Healthy Residents of High Latitudes”, BioMed Research International, vol. 2021, Article ID 7086108, 11 pages, 2021.  
    • RBC Agglutination causes RBCs to shed oxygen. Free oxygen becomes destructive Reactive Oxygen Species (free-radicals) that damage interior of blood vessels. Cholesterol is used to spackle over the damaged areas.
    • When Triglycerides are equal to or greater than Cholesterol suspect Diabetes.
  • Exocrine Pancreas Insufficiency
  • Eye – Floaters, cataracts, declining vision103Anan, F., Takayuki, M., Takahashi, N. et al. Diabetic retinopathy is associated with insulin resistance and cardiovascular autonomic dysfunction in type 2 diabetic patients. Hypertens Res 32, 299–305 (2009).,104Parvanova A, Iliev I, Filipponi M, Dimitrov BD, Vedovato M, Tiengo A, Trevisan R, Remuzzi G, Ruggenenti P. Insulin resistance and proliferative retinopathy: a cross-sectional, case-control study in 115 patients with type 2 diabetes. J Clin Endocrinol Metab. 2004 Sep;89(9):4371-6.,105Sinclair SH., Schwartz SS. Diabetic Retinopathy–An Underdiagnosed and Undertreated Inflammatory, Neuro-Vascular Complication of Diabetes. Frontiers in Endocrinology, 10, 2019 ISSN=1664-2392
    • retinal hemorrhages, floaters (soft exudates, hard exudates), Changes in blood vessels of the eyes (intraretinal microvascular abnormalities or venous beading)
    • Reversible cataracts106Kiziltoprak H, Tekin K, Inanc M, Goker YS. Cataract in diabetes mellitus. World J Diabetes. 2019;10(3):140-153. doi:10.4239/wjd.v10.i3.140,107Jin YY, Huang K, Zou CC, Liang L, Wang XM, Jin J. Reversible cataract as the presenting sign of diabetes mellitus: report of two cases and literature review. Iran J Pediatr. 2012;22(1):125-128.
    • Glaucoma – insulin resistance underpins the causality for intraocular pressure elevation and the consequent glaucomatous damages.108Lee, JH., Kwon, YJ., Kim, S.J. et al. Metabolic syndrome as an independent risk factor for glaucoma: a nationally representative study. Diabetol Metab Syndr 15, 177 (2023).,109Al Hussein Al Awamlh S, Wareham LK, Risner ML, Calkins DJ. Insulin Signaling as a Therapeutic Target in Glaucomatous Neurodegeneration. Int J Mol Sci. 2021 Apr 28;22(9):4672.,110Dada T. Is Glaucoma a Neurodegeneration caused by Central Insulin Resistance: Diabetes Type 4? J Curr Glaucoma Pract. 2017 Sep-Dec;11(3):77-79.,111Faiq, Muneeb A. Sengupta, Trina; Nath, Madhu; Velpandian, Thirumurthy; Saluja, Daman; Dada, Rima; Dada, Tanuj,; Chan, Kevin C.,. Ocular manifestations of central insulin resistance. Neural Regeneration Research 18(5):p 1139-1146, May 2023.
  • Fatigue. Sometimes the fatigue is physical, but often it is mental.
    • Chronic fatigue syndrome (CFS), commonly known as Myalgic Encephalomyelitis (ME).112Tomas C, Newton J. Metabolic abnormalities in chronic fatigue syndrome/myalgic encephalomyelitis: a mini-review. Biochem Soc Trans. 2018 Jun 19;46(3):547-553. 
    • CFS is associated with Insulin Resistance and Metabolic Syndrome,113Germain A, Ruppert D, Levine SM, Hanson MR. Metabolic profiling of a myalgic encephalomyelitis/chronic fatigue syndrome discovery cohort reveals disturbances in fatty acid and lipid metabolism. Mol Biosyst. 2017 Jan 31;13(2):371-379. which further exacerbates fatigue.114Maloney EM, Boneva RS, Lin JM, Reeves WC. Chronic fatigue syndrome is associated with metabolic syndrome: results from a case-control study in Georgia. Metabolism. 2010 Sep;59(9):1351-7.   
    • Increased energy strain may result from exertion-triggered tissue hypoxia, lead to systemic metabolic adaptation and compensation (Insulin Resistance).115Fritschi C, Quinn L. Fatigue in patients with diabetes: a review. J Psychosom Res. 2010 Jul;69(1):33-41. doi: 10.1016/j.jpsychores.2010.01.021. 
    • Through various mechanisms, Insulin Resistance combined with Portal Hypertension are mediators of the key symptoms in ME/CFS and is a target for supportive intervention.116Hoel F, Hoel A, Pettersen IK, Rekeland IG, Risa K, Alme K, Sørland K, Fosså A, Lien K, Herder I, Thürmer HL, Gotaas ME, Schäfer C, Berge RK, Sommerfelt K, Marti HP, Dahl O, Mella O, Fluge Ø, Tronstad KJ. A map of metabolic phenotypes in patients with myalgic encephalomyelitis/chronic fatigue syndrome. JCI Insight. 2021 Aug 23;6(16):e149217.   
    • Muscles, nerves, brain, and all other parts of the body require oxygen and glucose to function efficiently. Insulin Resistance deprives all of them of the necessary oxygen and glucose. 
    • RBC agglutination slows blood flow to the muscles, nerves and all parts of the body. RBC agglutination causes RBCs to shed oxygen. Further depriving all of the body of oxygen and glucose.
  • Fibromyalgia
    • Metabolic Syndrome or Insulin Resistance is associated with an increased risk of Fibromyalgia.117Wolfe F, Smythe HA, Yunus MB, et al. The American College ofRheumatology 1990 criteria for the classification of fibromyalgia. Report of the multicenter criteria committee. Arthritis Rheum 1990;33:160–72.,118Wolfe F, Clauw DJ, Fitzcharles MA, et al. 2016 Revisions to the 2010/ 2011 fibromyalgia diagnostic criteria. Semin Arthritis Rheum 2016; 46:319–29,119Wolfe F, Smythe HA, Yunus MB, et al. The American College ofRheumatology 1990 criteria for the classification of fibromyalgia. Report of the multicenter criteria committee. Arthritis Rheum 1990;33:160–72.,120Wolfe F, Clauw DJ, Fitzcharles MA, et al. 2016 Revisions to the 2010/ 2011 fibromyalgia diagnostic criteria. Semin Arthritis Rheum 2016; 46:319–29.,121Tishler M, Smorodin T, Vazina-Amit M, Ramot Y, Koffler M, Fishel B. Fibromyalgia in diabetes mellitus. Rheumatol Int 2003;23:171–3.,122Loevinger BL, Muller D, Alonso C, Coe CL. Metabolic syndrome in women with chronic pain. Metabolism 2007;56:87–93.,123Mäntyselkä P, Miettola J, Niskanen L, Kumpusalo E. Glucose regulation and chronic pain at multiple sites. Rheumatology 2008;47:1235–8.,124Lichtenstein A, Tiosano S, Comaneshter D, Amital H, Cohen AD, Amital D. Cross-sectional analysis of the associations between fibromyalgia and diabetes mellitus. Reumatologia 2018;56:275–8.
    • Fibromyalgia patients have a greater glycemic response to a glucose load than do healthy people.
    • The difference in the glycemic response is explained by Insulin Resistance and Metabolic Conditions.
  • Fluid Retention
    • Failure of normal lymphatic function results in a build-up of interstitial fluid and can lead to the clinical manifestations such as lymphedema and ascites.125Cardenas A, Bataller R, Arroyo V. Mechanisms of ascites formation. Clin Liver Dis 2000;4:447-465.,126Harvey NL, Oliver G. Choose your fate: artery, vein or lymphatic vessel? Curr Opin Genet Dev 2004;14:499-505.,127Oliver G, Alitalo K. The lymphatic vasculature: recent progress and paradigms. Annu Rev Cell Dev Biol 2005;21:457-483.,128Tammela T, Alitalo K. Lymphangiogenesis: Molecular mechanisms and future promise. Cell 2010;140:460-476,129Chung C, Iwakiri Y. The lymphatic vascular system in liver diseases: its role in ascites formation. Clin Mol Hepatol. 2013;19(2):99-104.  
    • This results in weight gain that is difficult to loose.
  • Hypoglycemic Associated Autonomic Failure (HAAF)
    • Autonomic Dysfunction (AD) is common in Insulin Resistance / Metabolic Syndrome patients, and in those who suffer Iatrogenic Hypoglycemia130Chittineni C, Driver BE, Halverson M, et al. Incidence and Causes of Iatrogenic Hypoglycemia in the Emergency Department. West J Emerg Med. 2019;20(5):833-837.,131Allison MG, McCurdy MT. Alcoholic metabolic emergencies. Emerg Med Clin North Am. 2014;32(2):293–301.,132Khanimov I, Shimonov M, Wainstein J, Leibovitz E. Hypoglycemia, Malnutrition and Body Composition. Adv Exp Med Biol. 2021;1307:71-84. doi: 10.1007/5584_2020_526. Erratum in: Adv Exp Med Biol. 2021;1307:577.,133Cryer PE. Iatrogenic hypoglycemia as a cause of hypoglycemia-associated autonomic failure in IDDM. A vicious cycle. Diabetes. 1992 Mar;41(3):255-60. there is a hypoglycemia-associated autonomic failure (HAAF).134Cryer PE. Hypoglycemia in diabetes: pathophysiological mechanisms and diurnal variation. Prog Brain Res. 2006;153:361–365 This is a result of decreased response of adrenaline and the SNS to hypoglycemia.135Gaab J, Engert V, Heitz V, Schad T, Schürmeyer TH, Ehlert U. Associations between neuroendocrine responses to the Insulin Tolerance Test and patient characteristics in chronic fatigue syndrome. J Psychosom Res. 2004 Apr;56(4):419-24. doi: 10.1016/S0022-3999(03)00625-1. PMID: 15094026.  
    • Hypoglycemic Unawareness (HU)
      • Autonomic Dysfunction (AD) creates hypoglycemic unawareness, and therefore a vicious circle of worsening AD.136Cryer PE. Diverse causes of hypoglycemia-associated autonomic failure in diabetes. N Engl J Med. 2004;350(22):2272–2279.  
    • Symptoms of HAAF
      • sweating, hot flashes, (Thermogenesis)
      • palpitations, 
      • tremulousness, quivering, shakes;
      • anxiety, and hunger
  • Hepatic Portal Hypertension
    • Insulin resistance (IR) is an important driver for the development of portal hypertension and nonalcoholic fatty liver. 
    • Hepatic Portal Hypertension is a multi-organ condition.
    • Hepatic Encephalopathy
      • Minimal Hepatic Encephalopathy effects areas of attention, alertness, response inhibition, and decision making functions137Bajaj JS, Saeian K, Verber MD, Hischke D, Hoffmann RG, Franco J, Varma RR, Rao SM. Inhibitory control test is a simple method to diagnose minimal hepatic encephalopathy and predict development of overt hepatic encephalopathy. Am J Gastroenterol 2007; 102: 754-760,138Ford JM, Gray M, Whitfield SL, Turken AU, Glover G, Faustman WO, Mathalon DH. Acquiring and inhibiting prepotent responses in schizophrenia: event-related brain potentials and functional magnetic resonance imaging. Arch Gen Psychiatry 2004; 61: 119-129,139Schiff S, Vallesi A, Mapelli D, Orsato R, Pellegrini A, Umilt  C, Gatta A, Amodio P. Impairment of response inhibition precedes motor alteration in the early stage of liver cirrhosis: a behavioral and electrophysiological study. Metab Brain Dis 2005; 20: 381-392,140Weissenborn K, Ennen JC, Schomerus H, Rückert N, Hecker H. Neuropsychological characterization of hepatic encephalopathy. J Hepatol 2001; 34: 768-773 and sleep disorders.141Córdoba J, Cabrera J, Lataif L, Penev P, Zee P, Blei AT. High prevalence of sleep disturbance in cirrhosis. Hepatology 1998; 27: 339-345,142Franco RA, Ashwathnarayan R, Deshpandee A, Knox J, Daniel J, Eastwood D, Franco J, Saeian K. The high prevalence of restless legs syndrome symptoms in liver disease in an academic-based hepatology practice. J Clin Sleep Med 2008; 4: 45-49,143Martino ME, Romero-Vives M, Fern ndez-Lorente J, De Vicente E, B rcena R, Gaztelu JM. Sleep electroencephalogram alterations disclose initial stage of encephalopathy. Methods Find Exp Clin Pharmacol 2002; 24 Suppl D: 119-122,144Mostacci B, Ferlisi M, Baldi Antognini A, Sama C, Morelli C, Mondini S, Cirignotta F. Sleep disturbance and daytime sleepiness in patients with cirrhosis: a case control study. Neurol Sci 2008; 29: 237-240 Moreover, the brain fog and cognitive impairment results in the use of more healthcare resources focused on treating only the brain while ignoring the causative liver dysfunction.145Rakoski MO, McCammon RJ, Piette JD, Iwashyna TJ, Marrero JA, Lok AS, Langa KM, Volk ML. Burden of cirrhosis on older Americans and their families: analysis of the health and retirement study. Hepatology 2012; 55: 184-191,146Kappus MR, Bajaj JS. Covert hepatic encephalopathy: not as minimal as you might think. Clin Gastroenterol Hepatol 2012; 10: 1208-1219,147Bajaj JS, Riggio O, Allampati S, Prakash R, Gioia S, Onori E, Piazza N, Noble NA, White MB, Mullen KD. Cognitive dysfunction is associated with poor socioeconomic status in patients with cirrhosis: an international multicenter study. Clin Gastroenterol Hepatol 2013; 11: 1511-1516,148Bajaj JS, Hafeezullah M, Hoffmann RG, Varma RR, Franco J, Binion DG, Hammeke TA, Saeian K. Navigation skill impairment: Another dimension of the driving difficulties in minimal hepatic encephalopathy. Hepatology 2008; 47: 596-604,149Prasad S, Dhiman RK, Duseja A, Chawla YK, Sharma A, Agarwal R. Lactulose improves cognitive functions and health-related quality of life in patients with cirrhosis who have minimal hepatic encephalopathy. Hepatology 2007; 45: 549-559,150Bajaj JS, Wade JB, Gibson DP, Heuman DM, Thacker LR, Sterling RK, Stravitz RT, Luketic V, Fuchs M, White MB, Bell DE, Gilles H, Morton K, Noble N, Puri P, Sanyal AJ. The multi-dimensional burden of cirrhosis and hepatic encephalopathy on patients and caregivers. Am J Gastroenterol 2011; 106: 1646-1653,151Ridola L, Nardelli S, Gioia S, Riggio O. Quality of life in patients with minimal hepatic encephalopathy. World J Gastroenterol. 2018;24(48):5446-5453. doi:10.3748/wjg.v24.i48.5446  
      • Unfortunately, it is often under-diagnosed, likely related to the notion that highly specialized personnel concentrate all their efforts on the brain and Central Nervous System.152Stinton LM, Jayakumar S. Minimal hepatic encephalopathy. Can J Gastroenterol. 2013;27(10):572-574.  
      • Internal Hemorrhoids: Esophageal varices/GERD,153Marcos Pasarín, Juan G Abraldes, Eleonora Liguori, Beverley Kok and Vincenzo La Mura, Intrahepatic vascular changes in non-alcoholic fatty liver disease: Potential role of insulin-resistance and endothelial dysfunction, World Journal of Gastroenterology, 10.3748/wjg.v23.i37.6777, 23, 37, (6777-6787), (2017),154Delphine Degré, Thierry Gustot, Ariane Gerkens, Nathalie Boon, Jonas Schreiber, Antonia Lepida, Thomas Sersté, Pierre Deltenre, Jacques Devière, Eric Trépo and Christophe Moreno, Insulin resistance is associated with esophageal varices in alcoholic liver disease patients, European Journal of Gastroenterology & Hepatology, 10.1097/MEG.0000000000000627, 28, 7, (792-796), (2016).,155Ying Li, Gao Yang, Jinwei Qiang, Songqi Cai and Hao Zhou, Incidence of insulin resistance and diabetes in patients with portosystemic shunts without liver dysfunction, Journal of International Medical Research, 10.1177/0300060516659392, 44, 5, (1040-1048), (2016). stomach varicies,156Yamagami T, Tanaka O, Yoshimatsu R, et al. Value of embolisation of collateral veins from gastric varices before balloon-occluded retrograde transvenous obliteration. J Med Imaging Radiat Oncol. 2011;55:26–32.,157Irani S, Kowdley KV, Kozarek RA. Gastric varices: an updated review of management. J Clin Gastroenterol. 2011;45:133–148.,158Chikamori F, Kuniyoshi N, Kawashima T, et al. Gastric varices with gastrorenal shunt: combined therapy using transjugular retrograde obliteration and partial splenic embolization. AJR Am J Roentgenol. 2008;191:555–559. small intestine,159Hashizume M, Kitano S, Sugimachi K, et al. Three-dimensional view of the vascular structure of the lower esophagus in clinical portal hypertension. Hepatology. 1988;8:1482–1487.,160Nardone G, Budillon G. Treatment of duodenal varices by endoscopic sclerotherapy. Gastrointest Endosc. 1991;37:407–408.,161Stephan G. Bleeding of duodenal varices in portal hypertension. Bruns Beitr Klin Chir. 1973 Aug;220(5):467–474.,162Lebrec D, Benhamou JP. Ectopic varices in portal hypertension. Clin Gastroenterol. 1985 Jan;14(1):105–121.,163Lim LG, Lee YM, Tan L, et al. Percutaneous paraumbilical embolization as an unconventional and successful treatment for bleeding jejunal varices. World J Gastroenterol. 2009 Aug 14;15(30):3823–3826. large intestine,164Feldman Sr M, Smith VM, Warner CG. Varices of the colon. Report of three cases. JAMA. 1962;179:729–730.,165Weingart J, Hochter W, Ottenjann R. Varices of the entire colon-an unusual cause of recurrent intestinal bleeding. Endoscopy. 1982;14(2):69–70.,166Francois F, TadrosC,DiehlD. Pan-colonic varices and Idiopathicportal hypertension. J Gastrointestin, Liver Dis. 2007, Sep;16(3):325–328. diaphragm, umbilical,167Jung SC, Lee W, Chung JW, et al. Unusual causes of varicose veins in the lower extremities: CT venographic and Doppler US findings. Radiographics. 2009 Mar-Apr;29(2):525–536.,168Sano K, Shuin T, Takebayashi S, et al. A case of vesical varices as a complication of portal hypertension and manifested gross hematuria. J Urol. 1989 Feb;141(2):369–371.,169Lugagne PM, Castaing D, Conort P. Portal hypertension: a rare cause of hematuria. Prog Urol. 1992 Apr;2(2):294–298.,170Loganathan G, Shyamkumar NK, Kurian G, et al. Vesical varix in cirrhosis of liver. Indian J Gastroenterol. 2000 Oct-Dec;19(4):193–194. Uterine,171Gaspar Y, Detry O, de Leval J. Vesical varices in a patient with portal hypertension. N Engl J Med. 2001 Nov 15;345(20):1503–1504.,172McHugh PP, Jeon H, Gedaly R, et al. Vaginal varices with massive hemorrhage in a patient with nonalcoholic steatohepatitis and portal hypertension: successful treatment with liver transplantation. Liver Transpl. 2008 Oct;14(10):1538–1540 Pelvic Congestion Syndrome,173Williams PL, et al. Veins of the abdomen and pelvis: hepatic portal system. In: . Gray’s Anatomy. 38th ed. New York, NY: Churchill Livingstone; 1999:1602–1604.,174Kies DD, Kim HS. Pelvic congestion syndrome: a review of current diagnostic and minimally invasive treatment modalities. Phlebology. 2012 Mar;27 Suppl 1:52-7.,175Winer AG, Chakiryan NH, Mooney RP, Verges D, Ghanaat M, Allaei A, Robinson L, Zinn H, Lang EK. Secondary pelvic congestion syndrome: description and radiographic diagnosis. Can J Urol. 2014 Aug;21(4):7365-8. PMID: 25171280. gallbladder,176Tarantino G, Citro V, Conca P, Riccio A, Tarantino M, Capone D, et al.: What are the implications of the spontaneous spleno-renal shunts in liver cirrhosis? BMC Gastroenterol. 2009; 9: 89.,177Chawla Y, Dilawari JB, Katariya S. Gallbladder wall varices in portal vein thrombosis. AJR Am J Roentgenol. 1994 Mar;162(3):643–645.,178Gabata T, Matsui O, Kadoya M, et al. Gallbladder varices: demonstration of direct communication to intrahepatic portal veins by color doppler sonography and CT during arterial portography. Abdom Imaging. 1997 Jan-Feb;22(1):82–84.,179Sarin SK, Agarwal SR. Extrahepatic portal vein obstruction. Semin Liver Dis. 2002 Feb;22(1):43–58.,180Shin SM, Kim S, Lee JW, et al. Biliary abnormalities associated with portal biliopathy: evaluation on MR cholangiography. AJR Am J Roentgenol. 2007 Apr;188(4):W 341–W 347. and spider/varicose veins in legs.181Petren T. The veins of the extrahepatic biliary system and their pathologic anatomic significance. Vert Anat Ges. 1932;41:139–143.,182Bosch J, Berzigotti A, Garcia-Pagan JC, Abraldes JG. The management of portal hypertension: rational basis, available treatments and future options. J Hepatol. 2008;48 Suppl 1:S68-92.  
      • External Hemorrhoids: Vaginal,183Jung SC, Lee W, Chung JW, et al. Unusual causes of varicose veins in the lower extremities: CT venographic and Doppler US findings. Radiographics. 2009 Mar-Apr;29(2):525–536.,184McHugh PP, Jeon H, Gedaly R, et al. Vaginal varices with massive hemorrhage in a patient with nonalcoholic steatohepatitis and portal hypertension: successful treatment with liver transplantation. Liver Transpl. 2008 Oct;14(10):1538–1540 Rectal185Williams PL, et al. Veins of the abdomen and pelvis: hepatic portal system. In: . Gray’s Anatomy. 38th ed. New York, NY: Churchill Livingstone; 1999:1602–1604.,186Caletti GC, Brocchi E, Ferrari A, et al. Value of endoscopic ultrasonography in the management of portal hypertension. Endoscopy. 1992;24(suppl 1):342–346.,187Sharma M, Rameshbabu CS. Collateral pathways in portal hypertension. J Clin Exp Hepatol. 2012;2(4):338-352.,188Sato T. Transabdominal color Doppler ultrasonography for the diagnosis of small intestinal and vesical varices in a patient successfully treated with percutaneous transhepatic obliteration. Clin J Gastroenterol. 2010;3(Number 4):214–218.,189Hollinshead WH. The rectum and anal canal. In: . Anatomy for Surgeons. 2nd ed., vol. 2. Hoeber Medical Division, Harper & Row; 1971. 676–720.,190Yachha SK, Dhiman RK, Gupta R, et al. Endosonographic evaluation of the rectum in children with extrahepatic portal venous obstruction. J Pediatr Gastroenterol Nutr. 1996 Nov;23(4):438–441.,191Dhiman RK, Saraswat VA, Choudhuri G, et al. Endosonographic, endoscopic and histologic evaluation of alterations in the rectal venous system in patients with portal hypertension. Gastrointest Endosc. 1999 Feb;49(2):218–227. 
97% of Disc Bulges identified by MRI are Hyperemic Blood Vessels.
  • Disc Bulges: 96% of disc bulges seen on MRI images are Epidural Varices.192Al Khalloufi K, Laiyemo AO. Management of rectal varices in portal hypertension. World J Hepatol. 2015;7(30):2992-2998. doi:10.4254/wjh.v7.i30.2992,193LaBan MM, Ay-Ming W, Shetty A, Sessa GR and Taylor RS. Varicosities of the paravertebral plexus of veins associated with nocturnal spinal pain as imaged by magnetic resonance venography. Am J. Phys. Med. Rehabil. 1999 78 (1): 72 – 76.,194MM Laban, AM Wang, AN Shetty, RS. Taylor. Varicosities of the paravertebral plexus of veins associated with nocturnal spinal pain as imaged by magnetic resonance venography – A brief report. Am J Physical Medicine & Rehabilitation 78(1):72-6 · January 1999,195Gauthier G, Wildi E. Porto-systemic encephalo-myelopathy. Rev Neurol (Paris). 1975 May;131(5):319-38.
  • Cauda Equina Syndrome (CES) by means of direct mechanical compression or congested flow-induced ischemia.196Nardone R, Buratti T, Oliviero A, Lochmann A, Tezzon F. Corticospinal involvement in patients with a portosystemic shunt due to liver cirrhosis: a MEP study. J Neurol. 2006 Jan;253(1):81-5. Epub 2005 Aug 4.,197AlTahan HA, Amer RR, Madani AA, Bakhsh EA. An unusual cause of cauda equina syndrome: lumbar epidural venous engorgement. Am J Case Rep. 2018; 19: 694–698.,198Carvalho DZ, Hughes JD, Liebo GB, et al. Venous congestive myelopathy due to chronic inferior vena cava thrombosis treated with endovascular stenting: case report and review of the literature. J Vasc Interv Neurol. 2015; 8(1): 49–53.,199Go MR, Baril DT, Leers SA, Chaer RA. Acute cauda equina syndrome secondary to iliocaval thrombosis successfully treated with thrombolysis and pharmacomechanical thrombectomy. J Endovasc Ther. 2009; 16(2): 233–237.,200Mohit AA, Fisher DJ, Matthews DC, et al. Inferior vena cava thrombosis causing acute cauda equina syndrome. Case report. J Neurosurg. 2006; 104(1 Suppl): 46–49. 
  • Brain and Spinal Cord Myelopathy causing changes in the central nervous system blood flow and neural degeneration.201Lee JH, Song WJ, Kang KC. Myelopathy-mimicking symptoms of epidural venous engorgement and syringomyelia due to inferior vena cava stenosis at the thoracolumbar junction in a patient with Budd-Chiari syndrome. J Neurosurg Spine. 2015; 23(4): 467–470.,202Tazawa K, Shimojima Y, Okano T, Yazaki M, Takei Y, Shimojo H, Kobayashi K, Saheki T, Ikeda S. An autopsy case with adult onset type II citrullinemia showing myelopathy. J Neurol Sci. 2007 Feb 15;253(1-2):77-80. Epub 2007 Jan 2.,203Panicker J, Sinha S, Taly AB, Ravishankar S, Arunodaya GR. Hepatic myelopathy: a rare complication following extrahepatic portal vein occlusion and lienorenal shunt. Neurol India. 2006 Sep;54(3):298-300.,204Gauthier G, Wildi E. Porto-systemic encephalo-myelopathy. Rev Neurol (Paris). 1975 May;131(5):319-38.  
  • Hypertension – Increased blood pressure.
    • It is a fact that most people with hypertension have too much insulin and are Insulin Resistant. It is often possible to show a direct relationship between insulin resistance and blood pressure: as insulin levels elevate, so does blood pressure. A close relationship exists among insulin resistance, glucose alterations, and arterial hypertension.  
    • 205Antoniotti V, Amore M, Caputo M, Fania C, Mancioppi V, Casoli G, Tini S, Antonioli A, Aimaretti G, Rabbone I, Bellone S, Prodam F. Glucose Alterations, Insulin Resistance, Arterial Hypertension, and Renin are Strictly Associated in Pediatric Obesity. J Endocr Soc. 2023 Jun 26;7(8):bvad088.,206Miroshnik NIu, Chamontin B, Brillac T, Salvador M, Amar J. Arterial’naia gipertenziia i insulinorezistentnost’ [Arterial hypertension and insulin resistance]. Lik Sprava. 1995 Sep-Dec;(9-12):44-7. Russian. PMID: 8983788.,207Landsberg L. Insulin resistance and hypertension. Clin Exp Hypertens. 1999 Jul-Aug;21(5-6):885-94. doi: 10.3109/10641969909061017. PMID: 10423110.
    • Insulin resistance and reactive hyperinsulinemia occur not only in patients with obesity, impaired glucose tolerance or non-insulin-dependent (Type 2) diabetes mellitus, but also in many non-obese, non-diabetic individuals with early stages of Portal Hypertension.208Weidmann P, Müller-Wieland D, de Courten M, Krone W. Insulinresistenz und arterielle Hypertonie [Insulin resistance and arterial hypertension]. Herz. 1995 Feb;20(1):16-32. German. PMID: 7713473.
    • Essential arterial hypertension is an insulin-resistant state.209Ferrannini E, Buzzigoli G, Bonadonna R, Giorico MA, Oleggini M, Graziadei L, Pedrinelli R, Brandi L, Bevilacqua S. Insulin resistance in essential hypertension. N Engl J Med. 1987 Aug 6;317(6):350-7.
    • Common mechanisms, for instance, involve upregulation of the renin-angiotensin-aldosterone system, oxidative stress, inflammation, and activation of the immune system, have a role in the association between insulin resistance and arterial hypertension.210Sinha S, Haque M. Insulin Resistance Is Cheerfully Hitched with Hypertension. Life (Basel). 2022 Apr 10;12(4):564.
    • Insulin resistance causes reduced vascularization of the skeletal muscles which on the background of insulin resistance leads to enhanced development of hypertension with subsequent hypertrophy of the vascular wall and left ventricle and to the development of arteriosclerosis.211Hrnciarová M, Hrnciar J, Jakubíková K. Inzulínová rezistencia a artériová hypertenzia [Insulin resistance and arterial hypertension]. Vnitr Lek. 1995 Feb;41(2):111-6. Slovak. PMID: 7725634.
  • Reduced Muscle Vascularization
    • The skeletal muscle is one of the main targets of insulin and its action is central for the maintenance of glucose homeostasis.212Thiebaud D, Jacot E, Defronzo RA, Maeder E, Jequier E, Felber J-P. The effect of graded doses of insulin on total glucose uptake, glucose oxidation, and glucose storage in man. Diabetes. 1982;31:957–963.
    • The skeletal muscle vasculature behaves in an extremely flexible manner.213Saltin B, Radegran G, Koskolou M, Roach R. Skeletal muscle blood flow in humans and its regulation during exercise. Acta Physiol Scand. 1998;162:421–436.,214Klitzman B, Damon D, Gorczynski R, Duling B. Augmented tissue oxygen supply during striated muscle contraction in the hamster. Relative contributions of capillary recruitment, functional dilation, and reduced tissue PO2. Circ Res. 1982;51:711–721.
    • Skeletal muscle microvascular (capillary) blood flow plays an important role in glucose metabolism by increasing the delivery of glucose and insulin to the myocytes. This process is impaired in insulin-resistant individuals.215Abdul-Ghani MA, DeFronzo RA. Pathogenesis of insulin resistance in skeletal muscle. J Biomed Biotechnol. 2010;2010:476279.,216Sylow L, Tokarz VL, Richter EA, Klip A. The many actions of insulin in skeletal muscle, the paramount tissue determining glycemia. Cell Metab. 2021 Apr 6;33(4):758-780.,217Carmichael, L., Keske, M.A., Betik, A.C. et al. Is vascular insulin resistance an early step in diet-induced whole-body insulin resistance?. Nutr. Diabetes 12, 31 (2022).
    • Obesity, insulin resistance and ageing are all associated with impaired microvascular responses to insulin in skeletal muscle.218Keske MA, Premilovac D, Bradley EA, Dwyer RM, Richards SM, Rattigan S. Muscle microvascular blood flow responses in insulin resistance and ageing. J Physiol. 2016 Apr 15;594(8):2223-31.
    • Insulin resistance causes reduced vascularization of the skeletal muscles.219Hrnciarová M, Hrnciar J, Jakubíková K. Inzulínová rezistencia a artériová hypertenzia [Insulin resistance and arterial hypertension]. Vnitr Lek. 1995 Feb;41(2):111-6. Slovak. PMID: 7725634.

Fatty Liver Conditions

Related Keywords:

  • Insulin resistance symptoms
  • Insulin resistance diet
  • Insulin resistance treatment
  • Metabolic syndrome diagnosis
  • Syndrome X causes
  • Hypoglycemic associated autonomic failure management

Top Competitor Sites with URLs:

Website: healthline.com

Website: mayoclinic.org

Website: webmd.com

Suggested Sites for Outreach and Backlinks:

American Diabetes Association

National Institute of Diabetes and Digestive and Kidney Diseases

Harvard Health Publishing

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