2. Proesmans_Natural treatments for thyroid dysfunction
Transcription
2. Proesmans_Natural treatments for thyroid dysfunction
Natural treatments for thyroid dysfunction Dr Rudy Proesmans Iodine There are 4 Iodine atoms in one thyroxine molecule Iodine • Iodine source: fish and seaweed • Vit D and Iodine deficiency are very common, supplementation is advisable for everybody • Fear for toxicity is not scientifically based. Too much iodine is excreted by the kidney’s • Minimal versus optimal • www.jodiumtekort.nl Iodine • Worldwide deficiency • In 2008 two billion of the worldpopulation was iodine deficient • Daily intake has to be min. 150µg. Pregnant women and breastfeeding women need min. 250 µg • Our food supply is only +/- 50-70 µg Iodine deficiency and the foetus • Iodine requirements are increased ≥ 50% during pregnancy. • Miscarriage • Stillbirths • Congenital anomalies-cretinism Brain Damage-mental retardation • Increased perinatal morbidity and mortality Zimmermann MB. The effects of iodine deficiency in pregnancy and infancy. Paediatr Perinat Epidemiol. 2012 Jul • .... Two meta-analyses have estimated that iodine-deficient populations experience a mean reduction in IQ of 1213.5 points. Iodine deficiency and the neonatus • • • • Endemic cretinism Neonatal Goiter Neonatal hypothyrodism Endemic mental retardation • • • • • Effect of inadequate iodine status in UK pregnant women on Cognitive outcomes in their children: results from the Avon Longitudinal Study of Parents and Children (ALSPAC) Bath ea Lancet , 2013 • Iodine deficiency and the adolescent • • • • • Goiter (Subclinical) Hypothyroidism School performance and IQ impaired Retarded growth, hearing, speech ADHD Taylor PN, et al. Therapy of endocrine disease: Impact of iodine supplementation in mild-to-moderate iodine deficiency: systematic review and meta-analysis. Eur J Endocrinol. 2013 Nov 22; • Iodine supplementation improves some maternal thyroid indices and may benefit aspects of cognitive function in school-age children, even in marginally iodinedeficient areas Iodine deficiency • WHO : iodine deficiency is the most important ‘single cause’ of mental retardation which is preventable. • WHO: 300.000.000 school age children are iodine deficient Iodine deficiency and the adult • • • • • • Goiter Apathy Hypothyroidism (low T4, high TSH) Suboptimal brain function (sluggish thinking) Low capacity for initiative and decision making Spontaneous Hyperthyroidism Which nutrients are important in the production of T3? • Tyrosine • Iodine (enzyme deiodinase) • Selenium • Zinc • Iron • Magnesium • Vit B 12 • (cortisol) Deiodinase polymorfisme • SNP of the deiodinase gene • polymorphism in the D2 gene, Thr92Ala, is associated with reduced T4 to T3 activation in skeletal muscle and thyroid, linked to obesity and alterations in thyroid-pituitary feedback, and in responses to thyroid hormone treatment. T3-T4 • A suggestive clue to the presence of this polymorphism could be a higher than normal free T4/free T3 ratio. Clinicians could consider adding T3 as a therapeutic trial in selected patients. • Wartofsky L. Combination L-T3 and L-T4 therapy for hypothyroidism. Curr Opin Endocrinol Diabetes Obes. 2013 Oct; Symptoms of hypothyroidism • • • • • • • • • • • • • • • • Fatigue Increased sensitivity to cold Constipation Dry skin Unexplained weight gain Puffy face Hoarseness Muscle weakness Elevated blood cholesterol level Muscle aches, tenderness and stiffness Pain, stiffness or swelling in your joints Heavier than normal or irregular menstrual periods Thinning hair Slowed heart rate Depression Impaired memory Causes • Autoimmune disease. Hashimoto's thyroiditis • Radiation therapy. Radiation used to treat cancers of the head and neck can affect • Pituitary disorder • Pregnancy. Some women develop hypothyroidism during or after pregnancy (postpartum hypothyroidism) • Iodine deficiency. Diagnosis • TSH alone is not a reliable test. One can miss subclinical hypothyroidism • TSH 0,4 - 4,0 mU/l standard range • TSH 0,15 – 2 mU/l optimal range T3/T4 in 24 hour urine • The elevation of thyroid hormone levels in urine, assesses tissue exposure to thyroid hormones over a 24-hour period. The urine thyroid test therefore serves as a valuable tool for detecting those patients that are suffering from thyroid dysfunction, particularly low grade hypothyroidism who might otherwise go undetected through standard blood tests. It is important to use this test as an adjunct to other indicators of thyroid function, such as body temperature, symptomology and standard blood thyroid tests. Treat the patient not the lab test ! Iodine intake via bread • Ann Endocrinol . 2011 Apr;72(2):158-61. Epub 2011 Apr 21. Optimization of iodine intake in Belgium. Moreno-Reyes R, Van Oyen H, Vandevijvere S. • Mild iodine deficiency (MID) is a long-standing problem in Belgium and was recognized only recently as public health issue by the Ministry of Health (MOH). The main MID-related health problems in Belgium are a high prevalence of thyroid nodules and multinodular goiter. The economic cost of thyroid nodular disease only in Belgium was estimated at about €40 millions per year. The Belgian health authorities adopted a selective strategy to optimize iodine intake through the fortification of bread with iodized salt. • 75% of the Belgian people have a mild to severe iodine deficiency ! Uptake of iodine in non-thyroid tissue • Salivary glands ( iodine dissolves parotis stones, SSKI 5 drops/day ) • Kidneys • Prostate • Breast tissue • Pancreas • Skin • Ovaria • ... Iodine and breast cancer • Biofactors. 2003;19(3-4):121-30. • Role of iodine in antioxidant defence in thyroid and breast disease. Smyth PP. • “the Japanese experience may indicate a protective effect against breast cancer for an iodine rich seaweed containing diet”. Iodine and breast cancer • There is a clear relationship between low iodine intake and the incidence of breast cancer • Intake of iodine in Japanese women is 25x more than the intake of western women • • Funahashi H, et al. Seaweed prevents breast cancer? Jpn J Cancer Res. 2001 May;92(5):483-7. Aceves C, Anguiano B, Delgado G. Is iodine a gatekeeper of the integrity of the mammary gland? J Mammary Gland Biol Neoplasia. 2005 Apr;10(2):18996. Mol Cancer. 2009 Jun 6;8:33. doi: 10.1186/1476-4598-8-33. Antineoplastic effect of iodine in mammary cancer: participation of 6-iodolactone (6-IL) and peroxisome proliferator-activated receptors (PPAR). Aceves C et al ‘studies in mammary cancer demonstrated that moderately high concentrations of molecular iodine (I2) have a antiproliferative and apoptotic effect either in vivo as in vitro, however the cellular intermediated involved in these effects has not been elucidated.’ Prostate. 2013 Jan;73(1):31-41. Uptake and antitumoral effects of iodine and 6iodolactone in differentiated and undifferentiated human prostate cancer cell lines. • Normal and cancerous prostate cells can take up iodine, and depending on the chemical form, it exerts antiproliferative and apoptotic effects both in vitro and in vivo. Breast J. 2004 Jul-Aug;10(4):328-36. The effect of supraphysiologic levels of iodine on patients with cyclic mastalgia. Kessler JH • 111 patients; 4 groups . Placebo, 1,5 mg iodine, 3 mg iodine en 6 mg iodine • After 3 months significant reduction in pain in the group with 3 and 6 mg, not in the 1,5 mg group and placebo • 6 mg group : > 50 % pain reduction • No side effects Cancer Causes Control. 2000 Feb;11(2):121-7. Hypothesis: iodine, selenium and the development of breast cancer. Cann S, van Netten JP, van Netten C.Source • Iodine, in addition to its incorporation into thyroid hormones, is organified into antiproliferative iodolipids in the thyroid; such compounds may also play a role in the proliferative control of extrathyroidal tissues. Selenium acts synergistically with iodine. Iodine deficiency summary • Suboptimal brain development (MBD) • ADD , autisme ( Zimmerman, 2009) • Iodine def. during pregnancy increases risk for ADHD in childhood . • Cholesterol profile of children improves after iodine supplementation (Zhao ,2010) • Iodine is an anti-oxidant. It is important for the immune system , it helps in the prevention of bacterial and viral infections. • Infertility (Stewart, 1991) • Increased risk for breast, ovarium and prostate cancer • Breast and ovaria cysts Iodine for general prevention Iodine 250 -500 mcg per day ( Kelp ) Iodine is not been absorbed through lung tissue only orally Treatment and prevention of fibrocystic breast disease ( Reclus) • Lugol drops ( 1 drop = 6 mg iodine and iodide) • 2dr per day • After 3 weeks , 2 drops , 2-3 x per week • Lugol tabletten ( 1 tabl = 12 mg iodine en iodide) (Nutrined) Prevention of breast cancer • Lugol 2 drops , 2 x per week • Lugol tabl , 1 tablet 2 x per week • Check for thyroid hormones • Vit D 5000 – 10.000 iu per dag ! • Note: Amiodarone: the iodine content is 75 mg in a 200-mg tablet Approximately 10% of the iodine content of oral amiodarone is released into the circulatory system Treatment of hyperthyroïdism • SSKI (Saturated Solution of Kalium Iodide): 2 x 10 dr , 1 w , 2 x 5 dr , 1 week, 5 dr a few weeks according to the respons • 1 dr SSKI= 35 mg iodine in the form of potassium iodine • Wolff-Chaikoff effect: high concentration of iodine blocks the production of T4 (amiodarone, Cordarone) Jod-Basedow effect • The Jod-Basedow effect typically occurs with comparatively small increases in iodine intake, in people who have thyryoid abnormalities that cause the gland to function without the control of the pituitary . In some ways the Jod-Basedow phenomenon is the opposite of the Wolff-Chaikoff effect. However, unlike the WolffChaikoff effect, the Jod-Basedow effect does not occur in persons with normal thyroid glands, as thyroid hormone synthesis and release in normal persons is controlled by pituitary TSH secretion, which does not allow hyperthyroidism when extra iodine is ingested. • • • • • • • • Emerson CH, Anderson AJ, Howard WJ, Utiger RD. Serum thyroxine and triiodothyronine concentrations during iodide treatment of hyperthyroidism. J Clin Endocrinol Metab 1975; 40:33. WOLFF J, CHAIKOFF IL. The temporary nature of the inhibitory action of excess iodine on organic iodine synthesis in the normal thyroid. Endocrinology 1949; 45:504. Philippou G, Koutras DA, Piperingos G, et al. The effect of iodide on serum thyroid hormone levels in normal persons, in hyperthyroid patients, and in hypothyroid patients on thyroxine replacement. Clin Endocrinol (Oxf) 1992; 36:573. Marigold JH, Morgan AK, Earle DJ, et al. Lugol's iodine: its effect on thyroid blood flow in patients with thyrotoxicosis. Br J Surg 1985; 72:45. Erbil Y, Ozluk Y, Giriş M, et al. Effect of lugol solution on thyroid gland blood flow and microvessel density in the patients with Graves' disease. J Clin Endocrinol Metab 2007; 92:2182. Ross DS, Daniels GH, De Stefano P, et al. Use of adjunctive potassium iodide after radioactive iodine (131I) treatment of Graves' hyperthyroidism. J Clin Endocrinol Metab 1983; 57:250. Takata K, Amino N, Kubota S, et al. Benefit of short-term iodide supplementation to antithyroid drug treatment of thyrotoxicosis due to Graves' disease. Clin Endocrinol (Oxf) 2010; 72:845. Benua RS, Becker DV, Hurley JR. Thyroid storm. Curr Ther Endocrinol Metab 1994; 5:75. lithium • Lithium causes a suppresion of the production of T4 • Lithium can cause a goiter and hypothyroidism in the treatment of bipolar disorders (lithiumcarbonaat 400 1200 mg per day) • Lithiumcarbonaat 300 mg/dag • Lazarus JH. Lithium and thyroid. Best Pract Res Clin Endocrinol Metab. 2009 Dec;23(6):723-33 Herbal treatment • Lycopus europaeus MT , 3 x 30 – 50 dr Beer AM, Wiebelitz KR, Schmidt-Gayk H. Lycopus europaeus (Gypsywort): effects on the thyroidal parameters and symptoms associated with thyroid function. Phytomedicine. 2008 Jan;15(1-2):16-22. Radioactive iodine therapy • Increased risk for cancer ( breast cancer) • • Metso S, Auvinen A, Huhtala H, Salmi J, Oksala H, Jaatinen P. Increased cancer incidence after radioiodine treatment for hyperthyroidism. Cancer. 2007 Goldman MB, et al. Radioactive iodine therapy and breast cancer. A follow-up study of hyperthyroid women. Am J Epidemiol. 1988 May Lithium : an essential element • Lithium helps people with alcohol addiction • Lithium protects brain cells against the toxic effects of alcohol • In the combination with zinc , it is very effective for stubborn warts ( lithium 10 mg + zink 50 mg) • Li is neuroprotective • Li stimulates the angiogenesis after a stroke • Engel T, Lithium, a potential protective drug in Alzheimer's disease. Neurodegener Dis. 2008;5(3-4):247-9. • Zhong J, Lee WH, Lithium: a novel treatment for Alzheimer's disease? Expert Opin Drug Saf. 2007 Jul;6(4):375-83 • Schrauzer GN, Shrestha KP, Lithium in drinking water and the incidences of crimes, suicides, and arrests related to drug addictions. Biol Trace Elem Res. 1990 May;25(2):105-13 • Feng HL et al. Combined lithium and valproate treatment delays disease onset, reduces neurological deficits and prolongs survival in an amyotrophic lateral sclerosis mouse model. Neuroscience. 2008 Aug 26;155 • Guo S, Arai K, Stins MF, Chuang DM, Lo EH. Lithium Upregulates Vascular Endothelial Growth Factor in Brain Endothelial Cells and Astrocytes. Stroke. 2008 Oct 30. • Chiu CT, Chuang DM. Neuroprotective action of lithium in disorders of the central nervous system. Zhong Nan Da Xue Xue Bao Yi Xue Ban. 2011 Jun;36(6):461-76 • Luo J. Lithium-mediated protection against ethanol neurotoxicity. Front Neurosci. 2010 Jun 28;4:41 Mol Med Rep. 2012 Mar Effects of lithium on oxidative stress parameters in healthy subjects. Khairova R et all ….This reduction in the SOD/CAT ratio may lead to lower OxS, indicated primarily by a decrease in the concentration of cell hydrogen peroxide. Overall, the present findings indicate a potential role for the antioxidant effects of lithium in healthy subjects, supporting its neuroprotective profile in bipolar disorder (BD) and, possibly, in neurodegenerative processes. Take home message • Worldwide Iodine deficiency • Food supply is too low ( bread , seaweed ) • Iodine deficiency is the main cause of non optimal brain development • Supplementation: 0,5 mg per day • High risk breast cancer : 2-3 x/ week 12 mg (+ vit D) • Lithium is neuroprotective • Think of high dosage I in the treatment of hyperthyroidism