Thyroid hormone

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  • Thyroid hormone receptors (TRs) play a major role in animal physiology. TRs are important and very interesting regulators of diverse aspects, including brain development, hearing, bone growth, morphogenesis, metabolism, intestine, and heart rate in vertebrates (Fig. 1). Aberrant functions of TRs induce tremendous defects in these pathways. For example, the human disease of Resistance to Thyroid Hormone (RTH) (see Chapter 8 by Yoh and Privalsky) is a genetically autosomal dominant inherited syndrome that is caused by mutations in the gene encoding the TRβ.

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: The role of thyroid hormone therapy in acutely ill cardiac patients...

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care cung cấp cho các bạn kiến thức về ngành y đề tài: Clinical review: Thyroid hormone replacement in children after cardiac surgery – is it worth a try?

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Thyroid hormones and antibody response sheep erythrocytes of dwarf and normal chickens selected for juvenile body weight

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  • A cytosolic thyroid-hormone-binding protein (xCTBP), predominantly responsible for the major binding activity of T3 in the cytosol of Xenopus liver, has been shown to be identical to aldehyde dehydrogenase class 1 (ALDH1) [Yamauchi, K., Nakajima, J., Hayashi, H., Horiuchi, R. & Tata, J.R. (1999) J. Biol. Chem. 274, 8460–8469]. Within this paper we surveyed which signaling, and other, compounds affect the thyroid hormone binding activity and aldehyde dehydrogenase activity of recombinant Xenopus ALDH1 (xCTBP/xALDH1) while examining the relationship between these two activities....

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  • Jens W. Meyer, Christoph Reiners, Christiana Blasl, Katharina Bohr, R.G. Ahmed, N.K. Agrawal, Ved Prakash, Manuj Sharma, Giuseppe Pasqualetti, Angela Dardano, Sara Tognini, Antonio Polini, Fabio Monzani, Renata de Azevedo Melo Luvizotto, Sandro José Conde, Miriane de Oliveira, Maria Teresa De Sibio, Keize Nagamati Jr, Célia Regina Nogueira, Eva Feigerlova, Marc Klein, Anna Angelousi, Lelia Groza, Bruno Leheup, Georges Weryha, Einav Yehuda-Shnaidman, Bella Kalderon, Jacob Bar-Tana, Emina Kasumagic-Halilovic, Begler Begovic, Francesco Torino, Agnese Barnabei,...

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  • By employing RT-PCR in conjunction with 3¢-RACE, a full-length cDNA encoding a novel zebrafish cytosolic sulfotransferase (SULT) was cloned and sequenced. Sequence analysis revealed that this zebrafish SULT (desig-nated SULT1 ST5) is, at the amino acid sequence level, close to 50% identical to human and dog SULT1B1 (thyroid hormone SULT). A recombinant form of zebrafish SULT1 ST5 was expressed using the pGEX-2TK bacterial expression system and purified from transformed BL21 (DE3) cells.

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  • Thyroid hormone has various effects on cell proliferation, growth and apoptosis. To gain more insight into the molecular dynamics caused by thyroid hormone, gene expression in HeLaTRcells that constitutively over-expressed the thyroid hormone receptor (TR) was analyzed. Gene expression profiling of the HeLaTRcells with an oligonucleotide microarray yielded 229 genes whose expression was significantly altered by T3.

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  • Các hormon có bản chất steroid, thyroid và vitamin D đi qua màng vào trong nội bào, rồi vào trong nhân kết hợp với các thụ cảm thể của nhân. Phức hợp hormon-thụ cảm thể của nhân mới hình thành sẽ tương tác với các phân tử ADN ở trong nhân để tạo ra tín hiệu. Cụ thể là: phức hợp hormon-thụ cảm thể kết hợp với ADN sẽ tương tác với yếu tố điều hoà hormon steroid (hormone regulatory element = HRE) ở các phân tử ADN đích. ...

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  • + Tiến triển của bệnh: Đa số bệnh nhân bị viêm tuyến giáp thầm lặng đều tiến triển qua 3 giai đoạn: cường giáp, suy giáp và hồi phục. - Giai đoạn cường giáp: . Hormon tuyến giáp: T3, T4, FT4 đều cao; nồng độ TSH thấp, không tăng khi làm test TRH. . Thyroglobulin và iod liên kết protein (PBI) cũng đều tăng. .

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  • H2O2 generation is a limiting step in thyroid hormone bio-synthesis. Biochemical studies have confirmed that H2O2is generated by a thyroid Ca 2+ /NADPH-dependent oxidase. Decreased H2O2 availability may be another mechanism of inhibition of thyroperoxidase activity produced by thio-ureylene compounds, as propylthiouracil (PTU) and methimazole (MMI) are antioxidant agents. Therefore, we analyzed whether PTU or MMI could scavenge H2O2or inhibit thyroidNADPHoxidase activityin vitro.

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  • Case studies for emerging risks in the second section include evidence-based precautionary interventions to safeguard blood supplies, the evaluation of nanoparticle deposition in the lung and nasal airways and the discourse surrounding emerging potential health risks of genetically modified animals consumed as food. The third chapter by Tyshenko et al.

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Thyroid-stimulating hormone elevation misdiagnosed as subclinical hypothyroidism following non-convulsive status epilepticus: a case report

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  • Thyrotoxicosis is the clinical syndrome that results when tissues are exposed to high levels of circulating thyroid hormones. It results in a generalized acceleration of metabolic processes. - Hyperthyroidism: hyperactivity of the thyroid gland. Table 1. Conditions Associated with Thyrotoxicosis. 1. Diffuse toxic goiter (Graves' disease) 2. Toxic adenoma (Plummer's disease)

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  • Chẩn đoán viêm tuyến giáp thầm lặng: dựa vào biểu hiện cường giáp mức độ nhẹ hoặc trung bình với việc tăng nồng độ T3, T4, giảm chỉ số hấp thu 131 I của tuyến giáp và tuyến giáp to (gặp ở 50 - 60%) trên những bệnh nhân không có tiền sử dùng các hormon tuyến giáp và các chế phẩm có iod. Nếu có cường giáp hoặc suy giáp thoáng qua xuất hiện ngay sau khi đẻ phải nghĩ ngay là viêm tuyến giáp thầm lặng.

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  • Genome Institute of Singapore, Agency for Science, Technology and Research, 60 Biopolis Street, Singapore, 138672. †National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA. ‡Laboratory of Molecular Biology, National Cancer Institute, Bethesda, MD 20892-4264, USA. Correspondence: Sheue-yann Cheng. E-mail:

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  • Thyroid hormones are involved in growth and development, particularly of the brain. Thus, it is imperative that these hormones get from their site of synthesis to their sites of action throughout the body and the brain. This role is fulfilled by thyroid hormone distributor proteins. Of particular inter-est is transthyretin, which in mammals is synthesized in the liver, choroid plexus, meninges

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  • The relationship between the structure of the N-terminal sequence of trans-thyretin (TTR) and the binding of thyroid hormone was studied. A recom-binant human TTR and two derivatives of Crocodylus porosusTTRs, one with the N-terminal sequence replaced by that of human TTR (human⁄crocTTR), the other with the N-terminal segment removed (trun-cated crocTTR), were synthesized inPichia pastoris.

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  • Thyrotropin-releasing hormone receptor (TRHR) has already been cloned in mammals where thyrotropin-releas-inghormone (TRH) isknowntoactasapowerful stimulator of thyroid-stimulating hormone (TSH) secretion. The TRH receptor of amphibians has not yet been characterized, although TRH is specifically important in the adaptation of skin color to environmental changes via the secretion of a-melanocyte-stimulating hormone (a-MSH).

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  • (BQ) Part 2 book "Netter's Essential physiology" presents the following contents: Renal physiology, gastrointestinal physiology, endocrine physiology. Invite you to consult.

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