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Hypothyroid diet

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https://www.readbyqxmd.com/read/28461334/deficiency-in-the-manganese-efflux-transporter-slc30a10-induces-severe-hypothyroidism-in-mice
#1
Steven Hutchens, Chunyi Liu, Thomas Jursa, William Shawlot, Beth K Chaffee, Weiling Yin, Andrea C Gore, Michael Aschner, Donald R Smith, Somshuvra Mukhopadhyay
Manganese (Mn) is an essential metal that becomes toxic at elevated levels. Loss-of-function mutations in SLC30A10, a cell surface-localized Mn efflux transporter, cause a heritable Mn metabolism disorder resulting in elevated Mn levels and parkinsonian-like movement deficits. The underlying disease mechanisms are unclear; therefore, treatment is challenging. To understand the consequences of loss of SLC30A10 function at the organism level, we generated Slc30a10 knockout mice. During early development, knockouts were indistinguishable from controls...
May 1, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28460140/thyroid-function-variation-in-the-normal-range-energy-expenditure-and-body-composition-in-l-t4-treated-subjects
#2
Mary H Samuels, Irina Kolobova, Megan Antosik, Meike Niederhausen, Jonathan Q Purnell, Kathryn G Schuff
Purpose: It is not clear whether upper limits of the TSH reference range should be lowered. This debate can be better informed by investigation of whether variations in thyroid function within the reference range have clinical effects. Thyroid hormone plays a critical role in determining energy expenditure, body mass, and body composition, and therefore clinically relevant variations in these parameters may occur across the normal range of thyroid function. Methods: This was a cross-sectional study of 140 otherwise healthy hypothyroid subjects receiving chronic replacement therapy with levothyroxine (L-T4) who had TSH levels across the full span of the laboratory reference range (0...
April 28, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28407664/fenugreek-a-potent-hypoglycaemic-herb-can-cause-central-hypothyroidism-via-leptin-a-threat-to-diabetes-phytotherapy
#3
Jayjeet Majumdar, Pratip Chakraborty, Analava Mitra, Nirmal Kumar Sarkar, Supriti Sarkar
Fenugreek (Trigonella foenum graecum), a medicinal herb with potent antihyperglycaemic and hypoglycaemic effects, is used to treat diabetes. This study is aimed to explore the interaction of fenugreek seed extract (FSE) and HPT (hypothalamic-pituitary-thyroid) axis in context of leptin secretion which have important role in normal and type-1 diabetic subjects. FSE (confirmed to contain trigonelline, diosgenin, 4 hydroxyisoleucine) was gavaged (0.25 gm/kg body weight/day) to normal and alloxan-induced type-1 diabetic rats for 4 weeks...
April 13, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28379113/comparison-of-health-parameters-in-normal-cats-fed-a-limited-iodine-prescription-food-vs-a-conventional-diet
#4
Inke Paetau-Robinson, Lynda D Melendez, S Dru Forrester, Laura J Armbrust, Kent R Refsal, Patricia A Burris
Objectives The objective was to compare the effect on thyroid function in healthy, adult cats fed a limited iodine food or conventional diet for 24 months. Methods Cats in the limited iodine group (n = 14) were fed a commercial, dry food containing 0.2 ppm iodine on a dry-matter basis (DMB). Cats in the conventional diet group (n = 12) were fed an identical diet except that the iodine content was 3.2 ppm on a DMB. Both groups were maintained on their respective diets for 24 months. The median age of the cats at baseline was 3...
April 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28327089/uniform-fdg-pet-guided-gradient-dose-prescription-to-reduce-late-radiation-toxicity-upgrade-rt-study-protocol-for-a-randomized-clinical-trial-with-dose-reduction-to-the-elective-neck-in-head-and-neck-squamous-cell-carcinoma
#5
Sven van den Bosch, Tim Dijkema, Martina C Kunze-Busch, Chris H J Terhaard, Cornelis P J Raaijmakers, Patricia A H Doornaert, Frank J P Hoebers, Marije R Vergeer, Bas Kreike, Oda B Wijers, Wim J G Oyen, Johannes H A M Kaanders
BACKGROUND: In definitive radiation therapy for head and neck cancer, clinically uninvolved cervical lymph nodes are irradiated with a so-called 'elective dose' in order to achieve control of clinically occult metastases. As a consequence of high-resolution diagnostic imaging, occult tumor volume has significantly decreased in the last decades. Since the elective dose is dependent on occult tumor volume, the currently used elective dose may be higher than necessary. Because bilateral irradiation of the neck contributes to dysphagia, xerostomia and hypothyroidism in a dose dependent way, dose de-escalation to these regions can open a window of opportunity to reduce toxicity and improve quality of life after treatment...
March 21, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28324000/trh-action-is-impaired-in-pituitaries-of-male-igsf1-deficient-mice
#6
Marc-Olivier Turgeon, Tanya L Silander, Denica Doycheva, Xiao-Hui Liao, Marc Rigden, Luisina Ongaro, Xiang Zhou, Sjoerd D Joustra, Jan M Wit, Mike G Wade, Heike Heuer, Samuel Refetoff, Daniel J Bernard
Loss-of-function mutations in the X-linked immunoglobulin superfamily, member 1 (IGSF1) gene cause central hypothyroidism. IGSF1 is a transmembrane glycoprotein of unknown function expressed in thyrotropin (TSH)-producing thyrotrope cells of the anterior pituitary gland. The protein is cotranslationally cleaved, with only its C-terminal domain (CTD) being trafficked to the plasma membrane. Most intragenic IGSF1 mutations in humans map to the CTD. In this study, we used CRISPR-Cas9 to introduce a loss-of-function mutation into the IGSF1-CTD in mice...
April 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28315909/a-concise-review-of-hashimoto-thyroiditis-ht-and-the-importance-of-iodine-selenium-vitamin-d-and-gluten-on-the-autoimmunity-and-dietary-management-of-ht-patients-points-that-need-more-investigation
#7
REVIEW
Michael I Liontiris, Elias E Mazokopakis
Hashimoto's thyroiditis (HT) is a chronic autoimmune thyroid disease caused by an interaction between genetic factors and environmental conditions, both of which are yet to be fully understood. The management of HT depends on its clinical manifestations, commonly including diffuse or nodular goiter with euthyroidism, subclinical hypothyroidism and permanent hypothyroidism. However, in most cases of patients with HT, lifelong levothyroxine substitution is required. The additional role of diet for the management of HT is usually overlooked...
January 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28302175/prolonged-hypothyroidism-severely-reduces-ovarian-follicular-reserve-in-adult-rats
#8
Li Meng, Eddy Rijntjes, Hans J M Swarts, Jaap Keijer, Katja J Teerds
BACKGROUND: There is substantial evidence both in humans and in animals that a prolonged reduction in plasma thyroid hormone concentration leads to reproductive problems, including disturbed folliculogenesis, impaired ovulation and fertilization rates, miscarriage and pregnancy complications. The objective of the present study is to examine the consequences of chronic hypothyroidism, induced in adulthood, for the size of the ovarian follicle pool. In order to investigate this, adult female rats were provided either a control or an iodide deficient diet in combination with perchlorate supplementation to inhibit iodide uptake by the thyroid...
March 16, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28298278/pediatric-celiac-disease-follow-up-in-the-spotlight
#9
REVIEW
Francesco Valitutti, Chiara Maria Trovato, Monica Montuori, Salvatore Cucchiara
The follow-up of celiac disease (CD) is challenging due to the scarcity of published data and the lack of standardized evidence-based protocols. The worldwide frequency and methods of CD follow-up appear to be heavily influenced by expert opinions of the individual physicians who assess children with CD. The aim of this review was to summarize the available studies on CD follow-up in children. We conducted a literature search with the use of PubMed, Medline, and Embase (from 1900 to 15 December 2016) for terms relevant to this review, including CD, follow-up, dietary adherence or dietary compliance, nutrition, comorbidities, complications, and quality of life...
March 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28287838/renal-function-improves-with-the-treatment-of-hypothyroidism
#10
Oktay Bulur, Kursat Dal, Derun Taner Ertugrul, Murat Eser, Fatma Kaplan Efe, Serdar Karakaya, Kubilay Şahin, Salih Baser, Naim Ata, Aysun Aybal Kutlugun, Esin Beyan
BACKGROUND: It has been known that thyroid hormones may affect renal function. In this study, we aimed to investigate the effect of levothyroxine replacement on renal function in hypothyroid patients before and after treatment. METHODS: We retrospectively investigated free T3 (fT3), free T4 (fT4), TSH, creatinine, and eGFR measurements during both hypothyroid and euthyroid states of hypothyroid patients. The eGFR was calculated using the simplified Modification of Diet in Renal Disease formula...
March 13, 2017: Endocrine Research
https://www.readbyqxmd.com/read/28076316/changes-of-thyroid-hormonal-status-in-patients-receiving-ketogenic-diet-due-to-intractable-epilepsy
#11
Engin Kose, Orkide Guzel, Korcan Demir, Nur Arslan
BACKGROUND: Ketogenic diet (KD), which is high in fat and low in carbohydrates, mimics the metabolic state of starvation and is used therapeutically for pharmacoresistant epilepsy. It is known that generation of triiodothyronine (T3) from thyroxine (T4) decreases during fasting periods. The aim of this study was to evaluate the thyroid function of children receiving KD for at least 1 year due to drug-resistant epilepsy. METHODS: A total of 120 patients [63 males, 52...
April 1, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28012610/secondary-to-excessive-melatonin-synthesis-the-consumption-of-tryptophan-from-outside-the-blood-brain-barrier-and-melatonin-over-signaling-in-the-pars-tuberalis-may-be-central-to-the-pathophysiology-of-winter-depression
#12
José Carlos Pereira, Márcia Pradella Hallinan, Rosana Cardoso Alves
Seasonal affective disorder is defined as recurrent episodes of major depression, mania, or hypomania with seasonal onset and remission. In this class of mood disturbances, a unipolar major depressive disorder known as winter depression is common in populations living in northern latitudes far from the equator. Winter depression repeatedly occurs in the autumn or winter and remits in the spring or summer, and its etiopathogenesis is currently unknown. However, one can surmise that excessive melatonin production during the reduced duration of daily sunlight in the autumn and winter plays a role in its pathophysiology...
January 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/27852654/cobalt-cardiomyopathy-a-critical-reappraisal-in-light-of-a-recent-resurgence
#13
Milton Packer
Cobalt can cause a distinctive, rapidly progressive and reversible depression of cardiac systolic function, which is readily distinguished from other causes of cardiomyopathy. Patients present with the subacute onset of severe heart failure, which is accompanied by hypotension and cyanosis, pericardial effusion, low voltage on the electrocardiogram, marked elevation of serum enzymes, and lactic acidosis. They typically have a history of lethargy, anorexia, and weight loss in the months preceding the illness and exhibit other evidence of cobalt's effects on the body (eg, polycythemia and goiter)...
December 2016: Circulation. Heart Failure
https://www.readbyqxmd.com/read/27837466/thyroid-disruption-by-perfluorooctane-sulfonate-pfos-and-perfluorooctanoate-pfoa
#14
REVIEW
F Coperchini, O Awwad, M Rotondi, F Santini, M Imbriani, L Chiovato
BACKGROUND: Perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) are two fluorinated compounds widely used in industry because of their useful chemical characteristics. They were identified as endocrine disruptors due to their ability to interfere with thyroid function. The resistance of PFOA and PFOS to environmental degradation, their bio-accumulation in food chains, and their long half-life raised concern in the scientific community, and several studies were performed with the aim to establish the real dangerousness of these compounds for the human health...
February 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/27829582/postprandial-hyperlipidemia-and-remnant-lipoproteins
#15
Daisaku Masuda, Shizuya Yamashita
Fasting hypertriglyceridemia is positively associated with the morbidity of coronary heart disease (CHD), and postprandial (non-fasting) hypertriglyceridemia is also correlated with the risk status for CHD, which is related to the increase in chylomicron (CM) remnant lipoproteins produced from the intestine. CM remnant particles, as well as oxidized low density lipoprotein (LDL) or very low density lipoprotein (VLDL) remnants, are highly atherogenic and act by enhancing systemic inflammation, platelet activation, coagulation, thrombus formation, and macrophage foam cell formation...
February 1, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/27824612/effects-of-altered-thyroid-states-on-oxidative-stress-parameters-in-rats
#16
Sehkar Oktay, Lebriz Uslu, Nesrin Emekli
BACKGROUND: Thyroid hormones are effective on oxidant-antioxidant balance by leading basal metabolic rate. In this study, the effects of altered thyroid states on low density lipoprotein (LDL) oxidation and oxidative stress parameters were investigated in an experimental animal model. METHODS: Thirty female Wistar Albino rats were equally divided into 3 groups as follows: control group; hypothyroid group (methimazole (75 mg/100 g was added to diet); hyperthyroid group [L-thyroxine (0...
March 1, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/27784959/endocrine-manifestations-in-celiac-disease
#17
REVIEW
Hugh James Freeman
Celiac disease (CD) is an autoimmune small intestinal mucosal disorder that often presents with diarrhea, malabsorption and weight loss. Often, one or more associated endocrine disorders may be associated with CD. For this review, methods involved an extensive review of published English-language materials. In children and adolescents, prospective studies have demonstrated a significant relationship to insulin-dependent or type 1 diabetes, whereas in adults, autoimmune forms of thyroid disease, particularly hypothyroidism, may commonly co-exist...
October 14, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27695051/standardization-of-a-physiologic-hypoparathyroidism-animal-model
#18
Soo Yeon Jung, Ha Yeong Kim, Hae Sang Park, Xiang Yun Yin, Sung Min Chung, Han Su Kim
Ideal hypoparathyroidism animal models are a prerequisite to developing new treatment modalities for this disorder. The purpose of this study was to evaluate the feasibility of a model whereby rats were parathyroidectomized (PTX) using a fluorescent-identification method and the ideal calcium content of the diet was determined. Thirty male rats were divided into surgical sham (SHAM, n = 5) and PTX plus 0, 0.5, and 2% calcium diet groups (PTX-FC (n = 5), PTX-NC (n = 10), and PTX-HC (n = 10), respectively). Serum parathyroid hormone levels decreased to non-detectable levels in all PTX groups...
2016: PloS One
https://www.readbyqxmd.com/read/27499687/low-carbohydrate-diet-based-intervention-for-obstructive-sleep-apnea-and-primary-hypothyroidism-in-an-obese-japanese-man
#19
Yoshio Tokuchi, Yayoi Nakamura, Yusuke Munekata, Fumio Tokuchi
BACKGROUND: Obesity is a major risk factor for obstructive sleep apnea (OSA), and weight loss is necessary in the overall management of obese patients with OSA. However, primary care physicians can provide only limited weight loss with lifestyle interventions, usually reducing a patient's body weight by only 2.5 kg or less after 6-18 months. CASE PRESENTATION: A 45-year-old Japanese man was referred to our clinic owing to obesity, daytime sleepiness, and snoring during sleep...
2016: Asia Pacific Family Medicine
https://www.readbyqxmd.com/read/27381728/thyroid-dysfunction-either-hyper-or-hypothyroidism-promotes-gallstone-formation-by-different-mechanisms
#20
Yong Wang, Xing Yu, Qun-Zi Zhao, Shu Zheng, Wen-Jie Qing, Chun-di Miao, Jaiswal Sanjay
We have investigated comprehensively the effects of thyroid function on gallstone formation in a mouse model. Gonadectomized gallstone-susceptible male C57BL/6 mice were randomly distributed into three groups each of which received an intervention to induce hyperthyroidism, hypothyroidism, or euthyroidism. After 5 weeks of feeding a lithogenic diet of 15% (w/w) butter fat, 1% (w/w) cholesterol, and 0.5% (w/w) cholic acid, mice were killed for further experiments. The incidence of cholesterol monohydrate crystal formation was 100% in mice with hyperthyroidism, 83% in hypothyroidism, and 33% in euthyroidism, the differences being statistically significant...
July 2016: Journal of Zhejiang University. Science. B
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