نتایج جستجو برای: dio2 gene

تعداد نتایج: 1141419  

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2007
David A Freeman Brett J W Teubner Carlesia D Smith Brian J Prendergast

Siberian hamsters (Phodopus sungorus) exhibit seasonal cycles of reproduction driven by changes in day length. Day length is encoded endogenously by the duration of nocturnal melatonin (Mel) secretion from the pineal gland. Short-duration Mel signals stimulate reproduction and long-duration signals inhibit reproduction. The mechanism by which Mel signals are decoded at the level of neural targe...

Journal: :Endocrinology 2004
Csaba Fekete Balázs Gereben Márton Doleschall John W Harney Jose Miguel Dora Antonio C Bianco Sumit Sarkar Zsolt Liposits William Rand Charles Emerson Imre Kacskovics P Reed Larsen Ronald M Lechan

To determine whether the type 2 iodothyronine deiodinase (D2), the principal central nervous system enzyme converting T(4) to biologically active T(3), is regulated in tanycytes by immune activation, D2 activity was measured in the mediobasal hypothalamus (MBH) 4, 12, and 24 h after administration of bacterial lipopolysaccharide (LPS) and compared with D2 levels in the cortex and anterior pitui...

Journal: :Endocrinology 2010
Jessica A Hall Scott Ribich Marcelo A Christoffolete Gordana Simovic Mayrin Correa-Medina Mary Elizabeth Patti Antonio C Bianco

Type 2 deiodinase (D2), which is highly expressed in brown adipose tissue (BAT), is an enzyme that amplifies thyroid hormone signaling in individual cells. Mice with inactivation of the D2 pathway (D2KO) exhibit dramatically impaired thermogenesis in BAT, leading to hypothermia during cold exposure and a greater susceptibility to diet-induced obesity. This was interpreted as a result of defecti...

Journal: :The Journal of clinical investigation 2010
Monica Dentice Alessandro Marsili Raffaele Ambrosio Ombretta Guardiola Annarita Sibilio Ji-Hye Paik Gabriella Minchiotti Ronald A DePinho Gianfranco Fenzi P Reed Larsen Domenico Salvatore

The active thyroid hormone 3,5,3' triiodothyronine (T3) is a major regulator of skeletal muscle function. The deiodinase family of enzymes controls the tissue-specific activation and inactivation of the prohormone thyroxine (T4). Here we show that type 2 deiodinase (D2) is essential for normal mouse myogenesis and muscle regeneration. Indeed, D2-mediated increases in T3 were essential for the e...

Journal: :Endocrinology 2006
Marcelo A Christoffolete Rogério Ribeiro Praful Singru Csaba Fekete Wagner S da Silva David F Gordon Stephen A Huang Alessandra Crescenzi John W Harney E Chester Ridgway P Reed Larsen Ronald M Lechan Antonio C Bianco

T(4), the main product of thyroid secretion, is a critical signal in plasma that mediates the TSH-negative feedback mechanism. As a prohormone, T(4) must be converted to T(3) to acquire biological activity; thus, type 2 iodothyronine deiodinase (D2) is expected to play a critical role in this feedback mechanism. However, the mechanistic details of this pathway are still missing because, counter...

Journal: :Journal of Alzheimer's disease : JAD 2015
Crystal E Humphries Martin A Kohli Lubov Nathanson Patrice Whitehead Gary Beecham Eden Martin Deborah C Mash Margaret A Pericak-Vance John Gilbert

Previous transcriptome studies observed disrupted cellular processes in late-onset Alzheimer's disease (LOAD), yet it is unclear whether these changes are specific to LOAD, or are common to general neurodegeneration. In this study, we address this question by examining transcription in LOAD and comparing it to cognitively normal controls and a cohort of "disease controls." Differential transcri...

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