Results 21 to 30 of about 18,502 (257)

The Longevity of Sirtuins

Cell Reports, 2012
Controversy has recently arisen over the role of sirtuins in metazoan aging. In this issue of Cell Reports, Banerjee et al. demonstrate that Drosophila Sir2 is necessary for life span extension in response to dietary restriction and that its overexpression in the fat body increases the life span.
David Sinclair, Eric Verdin
openaire   +3 more sources

Sirtuin Modulators [PDF]

, 2011
Members of the sirtuin family including the founding protein Sir2 in Saccharomyces cerevisiae have been linked to lifespan extension in simple organisms. This finding prompted evaluation of the role of Sir2 orthologues in many aging-associated conditions including neurodegeneration, type II diabetes and cancer.
Sumit S, Mahajan, Vid, Leko, Julian A, Simon, Antonio, Bedalov   +3 more
openaire   +2 more sources

Enhanced mitochondrial activity reshapes a gut microbiota profile that delays NASH progression

Hepatology, EarlyView., 2022
Improved mitochondrial activity, due to the lack of methylation‐controlled J protein (MCJ), creates a specific microbiota signature that when transferred through cecal microbiota transplantation delays NASH progression by restoring the gut‐liver axis and enhancing hepatic fatty acid oxidation.
María Juárez‐Fernández, Naroa Goikoetxea‐Usandizaga, David Porras, María Victoria García‐Mediavilla, Miren Bravo, Marina Serrano‐Maciá, Jorge Simón, Teresa C. Delgado, Sofía Lachiondo‐Ortega, Susana Martínez‐Flórez, Óscar Lorenzo, Mercedes Rincón, Marta Varela‐Rey, Leticia Abecia, Héctor Rodríguez, Juan Anguita, Esther Nistal, María Luz Martínez‐Chantar, Sonia Sánchez‐Campos   +18 more
wiley   +1 more source

Expression of Sirtuins in the Retinal Neurons of Mice, Rats, and Humans

Frontiers in Aging Neuroscience, 2017
Sirtuins are a class of histone deacetylases (HDACs) that have been shown to regulate a range of pathophysiological processes such as cellular aging, inflammation, metabolism, and cell proliferation. There are seven mammalian Sirtuins (SIRT1-7) that play
Hongdou Luo, Min Zhou, Kaibao Ji, Jiejie Zhuang, Wenjie Dang, Shiya Fu, Tao Sun, Xu Zhang   +7 more
doaj   +1 more source

AIF1+CSF1R+ MSCs, induced by TNF‐α, act to generate an inflammatory microenvironment and promote hepatocarcinogenesis

Hepatology, EarlyView., 2022
Mesenchymal stem cells subset, educated by TNF‐α, are involved to generate inflammatory microenvironment and promote hepatocarcinogenesis Abstract Background and Aims Increasing evidence suggests that mesenchymal stem cells (MSCs) home to injured local tissues and the tumor microenvironment in the liver.
Chen Zong, Yan Meng, Fei Ye, Xue Yang, Rong Li, Jinghua Jiang, Qiudong Zhao, Lu Gao, Zhipeng Han, Lixin Wei   +9 more
wiley   +1 more source

RIPK3 dampens mitochondrial bioenergetics and lipid droplet dynamics in metabolic liver disease

Hepatology, EarlyView., 2022
RIPK3 dampens mitochondrial bioenergetics and lipid droplet dynamics in metabolic liver disease. Abstract Background and Aims Receptor‐interacting protein kinase 3 (RIPK3) mediates NAFLD progression, but its metabolic function is unclear. Here, we aimed to investigate the role of RIPK3 in modulating mitochondria function, coupled with lipid droplet (LD)
Marta B. Afonso, Tawhidul Islam, Julie Magusto, Ricardo Amorim, Véronique Lenoir, Rui F. Simões, José Teixeira, Liana C. Silva, Dominique Wendum, Isabelle Jéru, Corinne Vigouroux, Rui E. Castro, Paulo J. Oliveira, Carina Prip‐Buus, Vlad Ratziu, Jérémie Gautheron, Cecília M. P. Rodrigues   +16 more
wiley   +1 more source

Sirtuin 1 and Sirtuin 3: Physiological Modulators of Metabolism [PDF]

Physiological Reviews, 2012
The sirtuins are a family of highly conserved NAD+-dependent deacetylases that act as cellular sensors to detect energy availability and modulate metabolic processes. Two sirtuins that are central to the control of metabolic processes are mammalian sirtuin 1 (SIRT1) and sirtuin 3 (SIRT3), which are localized to the nucleus and mitochondria ...
Ruben, Nogueiras, Kirk M, Habegger, Nilika, Chaudhary, Brian, Finan, Alexander S, Banks, Marcelo O, Dietrich, Tamas L, Horvath, David A, Sinclair, Paul T, Pfluger, Matthias H, Tschöp   +9 more
openaire   +2 more sources

Nicotinamide riboside and pterostilbene reduces markers of hepatic inflammation in NAFLD: A double‐blind, placebo‐controlled clinical trial

Hepatology, EarlyView., 2022
NRPT 1X reduces ALT and ceramide 14:0 in 65% of subjects as compared to only 28% in the placebo group. Abstract Background and Aims The prevalence of NAFLD is increasing globally and on a path to becoming the most frequent cause of chronic liver disease. Strategies for the prevention and treatment of NAFLD are urgently needed.
Ryan W. Dellinger, Holly E. Holmes, Tina Hu‐Seliger, Rodney W. Butt, Stephen A. Harrison, Dariush Mozaffarian, Oliver Chen, Leonard Guarente   +7 more
wiley   +1 more source

Retinal Aging and Sirtuins [PDF]

Ophthalmic Research, 2010
The process of aging involves the accumulating changes in the microenvironment that lead to cell senescence or apoptosis, and subsequent tissue or organ dysfunction. Multiple extrinsic and intrinsic events that cause DNA instability are associated with aging.
Yoko, Ozawa, Shunsuke, Kubota, Toshio, Narimatsu, Kenya, Yuki, Takashi, Koto, Mariko, Sasaki, Kazuo, Tsubota   +6 more
openaire   +2 more sources

The Contentious History of Sirtuin Debates

Rambam Maimonides Medical Journal, 2012
The sirtuins are highly conserved enzyme homologues of the yeast Sir2, with activities of NAD+ dependent deacetylase and/or mono ADP ribosyltransferase.
Shoshana Naiman, Haim Y. Cohen
doaj   +1 more source