Inadequate control of thyroid hormones sensitizes to hepatocarcinogenesis and unhealthy aging.

Inadequate control of thyroid hormones sensitizes to hepatocarcinogenesis and unhealthy aging. Aging (Albany NY). 2019 Sep 13;11: Authors: López-Noriega L, Capilla-González V, Cobo-Vuilleumier N, Martin-Vazquez E, Lorenzo PI, Martinez-Force E, Soriano-Navarro M, García-Fernández M, Romero-Zerbo SY, Bermúdez-Silva FJ, Díaz-Contreras I, Sánchez-Cuesta A, Santos-Ocaña C, Hmadcha A, Soria B, Martín F, Gauthier BR, Martin-Montalvo A Abstract An inverse correlation between thyroid hormone levels and longevity has been reported in several species and reduced thyroid hormone levels have been proposed as a biomarker for healthy aging and metabolic fitness. However, hypothyroidism is a medical condition associated with compromised health and reduced life expectancy. Herein, we show, using wild-type and the Pax8 ablated model of hypothyroidism in mice, that hyperthyroidism and severe hypothyroidism are associated with an overall unhealthy status and shorter lifespan. Mild hypothyroid Pax8 +/- mice were heavier and displayed insulin resistance, hepatic steatosis and increased prevalence of liver cancer yet had normal lifespan. These pathophysiological conditions were precipitated by hepatic mitochondrial dysfunction and oxidative damage accumulation. These findings indicate that individuals carrying mutations on PAX8 may be susceptible to develop liver cancer and/or diabetes and raise concerns regarding ...
Source: Aging - Category: Biomedical Science Authors: Tags: Aging (Albany NY) Source Type: research

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CONCLUSION: Thyroid disorders and eye diseases are interrelated through several mechanisms thus, awareness of this relation is of a great impact on early diagnosis and treatment. PMID: 31237221 [PubMed - as supplied by publisher]
Source: Endocrine, Metabolic and Immune Disorders Drug Targets - Category: Drugs & Pharmacology Tags: Endocr Metab Immune Disord Drug Targets Source Type: research
This study evaluated the effect of 3,5-diiodo-L-thyronine (T2) and 3,5,3′-triiodo-L-thyronine (T3) on rat liver mitochondrial DNA (mtDNA) oxidative damage and repair and to investigate their ability to induce protective effects against oxidative stress. Control rats, rats receiving a daily injection of T2 (N+T2) for 1 week and rats receiving a daily injection of T3 (N+T3) for 1 week, were used throughout the study. In the liver, mtDNA oxidative damage [by measuring mtDNA lesion frequency and expression of DNA polymerase γ (POLG)], mtDNA copy number, mitochondrial biogenesis [by measuring amplification of mtDNA/...
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
ConclusionsAllo-HCT survivors are at relevant risk of endocrinopathies after transplantation, providing justification for specific monitoring to individualize treatment and follow-up. Of note, classical transplant-related variables are not enough to justify the occurrence of endocrinological disfunction: a further deeper evaluation of a misdiagnosed donor-mediated autoimmune predisposition will be essential.DisclosuresBonini: Intellia Therapeutics: Research Funding.
Source: Blood - Category: Hematology Authors: Tags: 723. Clinical Allogeneic and Autologous Transplantation: Late Complications and Approaches to Disease Recurrence: Poster III Source Type: research
AbstractImmune checkpoint inhibitors are drugs that inhibit the “checkpoint molecules”. Different types of cancer immune checkpoint inhibitors have been approved recently: CTLA-4 monoclonal antibodies (as ipilimumab); anti-PD-1 monoclonal antibodies (as pembrolizumab and nivolumab); and anti-PD-L1 monoclonal antibodies (as atezolizumab, avelumab, and durmalu mab). The increased immune response induced by these agents leads to immune-related adverse events (irAEs), that can vary from mild to fatal, according to the organ system and severity. Immune-related endocrine toxicities are thyroid dysfunctions, hypophysi...
Source: Reviews in Endocrine and Metabolic Disorders - Category: Endocrinology Source Type: research
Abstract Immune checkpoint inhibitors are drugs that inhibit the "checkpoint molecules". Different types of cancer immune checkpoint inhibitors have been approved recently: CTLA-4 monoclonal antibodies (as ipilimumab); anti-PD-1 monoclonal antibodies (as pembrolizumab and nivolumab); and anti-PD-L1 monoclonal antibodies (as atezolizumab, avelumab, and durmalumab). The increased immune response induced by these agents leads to immune-related adverse events (irAEs), that can vary from mild to fatal, according to the organ system and severity. Immune-related endocrine toxicities are thyroid dysfunctions, hy...
Source: ENDOCR REV - Category: Endocrinology Authors: Tags: Rev Endocr Metab Disord Source Type: research
AbstractImmune checkpoint inhibitors are drugs that inhibit the “checkpoint molecules”. Different types of cancer immune checkpoint inhibitors have been approved recently: CTLA-4 monoclonal antibodies (as ipilimumab); anti-PD-1 monoclonal antibodies (as pembrolizumab and nivolumab); and anti-PD-L1 monoclonal antibodies (as atezolizumab, avelumab, and durmalu mab). The increased immune response induced by these agents leads to immune-related adverse events (irAEs), that can vary from mild to fatal, according to the organ system and severity. Immune-related endocrine toxicities are thyroid dysfunctions, hypophysi...
Source: Reviews in Endocrine and Metabolic Disorders - Category: Endocrinology Source Type: research
Conclusion Residual hypothyroid complaints in LT4-treated patients are specifically related to low FT3 concentrations. This supports an important role of FT3 for clinical decision making on dose adequacy, particularly in symptomatic athyreotic patients. [...] © Georg Thieme Verlag KG Stuttgart · New YorkArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text
Source: Experimental and Clinical Endocrinology and Diabetes - Category: Endocrinology Authors: Tags: Article Source Type: research
CONCLUSION: The excess mortality risks we observed in a large, prospective 30-year follow-up of patients with thyroid dysfunction require confirmation, and, if replicated, further investigation because of clinical implications. PMID: 28578598 [PubMed - as supplied by publisher]
Source: Thyroid : official journal of the American Thyroid Association - Category: Endocrinology Tags: Thyroid Source Type: research
Authors: Lapa C, Maya Y, Wagner M, Arias-Loza P, Werner RA, Herrmann K, Higuchi T Abstract BACKGROUND: Brown adipose tissue (BAT) attracts growing interest as a potential therapeutic target for obesity and diabetes. Hyperthyroidism is well-known to increase BAT activity, but the role of hypothyroidism is controversial. We aimed to investigate the association between different thyroid hormone (TH) states and BAT activity. METHODS: FDG-PET studies were retrospectively evaluated in thyroid cancer patients after total thyroidectomy both at euthyroidism during TH replacement or at hypothyroidism after TH cessation. ...
Source: Annals of Medicine - Category: Internal Medicine Tags: Ann Med Source Type: research
Purpose The development of endocrinopathies in survivors of childhood cancer as they age remains understudied. We characterized endocrine outcomes in aging survivors from the Childhood Cancer Survivor Study on the basis of therapeutic exposures. Patients and Methods We analyzed self-reported conditions in 14,290 5-year survivors from the Childhood Cancer Survivor Study, with a median age 6 years (range,
Source: Journal of Clinical Oncology - Category: Cancer & Oncology Authors: Tags: Long Term Survival & Late Effects, Rapid Communications, Rapid Communications Source Type: research
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