نتایج جستجو برای: klotho protein

تعداد نتایج: 1235788  

Journal: :Cell reports 2014
Dena B Dubal Jennifer S Yokoyama Lei Zhu Lauren Broestl Kurtresha Worden Dan Wang Virginia E Sturm Daniel Kim Eric Klein Gui-Qiu Yu Kaitlyn Ho Kirsten E Eilertson Lei Yu Makoto Kuro-o Philip L De Jager Giovanni Coppola Gary W Small David A Bennett Joel H Kramer Carmela R Abraham Bruce L Miller Lennart Mucke

Aging is the primary risk factor for cognitive decline, an emerging health threat to aging societies worldwide. Whether anti-aging factors such as klotho can counteract cognitive decline is unknown. We show that a lifespan-extending variant of the human KLOTHO gene, KL-VS, is associated with enhanced cognition in heterozygous carriers. Because this allele increased klotho levels in serum, we an...

2015
Christiaan Lucas Meuwese Hannes Olauson Abdul Rashid Qureshi Jonaz Ripsweden Peter Barany Cees Vermeer Nadja Drummen Peter Stenvinkel Elena Aikawa

INTRODUCTION Vascular calcification is a common, serious and elusive complication of end-stage renal disease (ESRD). As a pro-calcifying risk factor, non-thyroidal illness may promote vascular calcification through a systemic lowering of vascular calcification inhibitors such as matrix-gla protein (MGP) and Klotho. METHODS AND MATERIAL In 97 ESRD patients eligible for living donor kidney tran...

2015
Cynthia S. Ritter Sarah Zhang James Delmez Jane L Finch Eduardo Slatopolsky

Klotho plays an important role in the pathogenesis of cardiovascular disease in chronic kidney disease (CKD). Klotho is highly expressed in the kidney and parathyroid glands, but its presence in the vasculature is debated. Renal Klotho is decreased in CKD, but the effect of uremia on Klotho in other tissues is not defined. The effect of vitamin D receptor activator therapy in CKD on the express...

2016
Jing Chen Xiaoyan Zhang Han Zhang Tongqiang Liu Hui Zhang Jie Teng Jun Ji Xiaoqiang Ding

Chronic kidney disease (CKD) is a state of Klotho deficiency. The Klotho expression may be suppressed due to DNA hypermethylation in cancer cells so we have investigated the effects and possible mechanisms by which Klotho expression is regulated in human aortic smooth muscle cells (HASMCs). The vascular Klotho hypermethylation in radial arteries of patients with end-stage renal disease was desc...

2014
Silverio Rotondi Marzia Pasquali Lida Tartaglione Maria Luisa Muci Giusy Mandanici Cristiana Leonangeli Silvia Sales Alessio Farcomeni Sandro Mazzaferro

Transmembrane α-Klotho (TM-Klotho), mainly expressed in renal distal tubules, is a co-factor for FGF23 receptor. Circulating soluble α-Klotho (s-Klotho) results from shedding of the ecto-domain of TM-Klotho and has specific effects on urinary Phosphate (P) and Calcium (Ca) transport. The possibility exists that a decrease in TM-Klotho, described in experimental chronic kidney disease (CKD), may...

2017
Palida Abulizi Xiao-Hui Zhou Kabinuer Keyimu Mei Luo Feng-Qing Jin

The secretive Klotho protein is an anti-aging regulatory hormone that plays a physiological role in many target organs. The present study aims to investigate the correlation between Klotho gene and mild cognitive impairment (MCI) in Uygur and Han populations in Xinjiang. From July 2008 to April 2014, stratified random multistage cluster sampling was used in combination with the methods of on-si...

Journal: :Polskie Archiwum Medycyny Wewnetrznej 2013
Tomasz Hryszko Alicja Rydzewska-Rosołowska Joanna Goździkiewicz Szymon Brzósko Ewa Koc-Żórawska Beata Zelazowska-Rutkowska Michał Myśliwiec

INTRODUCTION Low levels of vitamin D are linked to numerous adverse clinical conditions in hemodialysis (HD) patients, including disturbances of mineral and bone metabolism and increased mortality. Klotho, a molecule involved in such processes as phosphate homeostasis and aging, exists in 2 forms: a transmembrane protein acting as a coreceptor for fibroblast growth factor 23 (FGF-23) and solubl...

Journal: :Nefrologia : publicacion oficial de la Sociedad Espanola Nefrologia 2012
M Concepción Izquierdo Ana B Sanz M Dolores Sánchez-Niño M Vanessa Pérez-Gómez Marta Ruiz-Ortega Jonay Poveda Olga Ruiz-Andrés Adrián M Ramos Juan A Moreno Jesús Egido Alberto Ortiz

There are no pathophysiolgical therapeutic approaches to acute kidney injury (AKI) and the mortality remains high. In addition chronic kidney disease (CKD) predisposes to AKI and AKI contributes to progression of CKD. Recently a transcriptomics approach unveiled a relationship between AKI, inflammation and the regulation of ageing. A transcriptomics analysis of experimental AKI revealed increas...

Journal: :Journal of immunology 2007
Jacek M Witkowski Monika Soroczyńska-Cybula Ewa Bryl Zaneta Smoleńska Agnieszka Jóźwik

Human CD4(+) T lymphocytes undergo aging-related changes leading to decreased immunity to infections and neoplasms, and to increased frequency of autoimmune diseases including rheumatoid arthritis (RA). Certain changes, observed in the CD4(+) cells of RA patients, resemble those observed during physiological aging, but occur at earlier age. Underlying cellular mechanism(s) of these similarities...

Journal: :Okajimas folia anatomica Japonica 2005
Iwao Sato Mami Miyado Masataka Sunohara

Mitochondrial enzyme activities and ultrastructure of mitochondria prepared from klotho mutant mice were compared with those in wild-type mice. We also measured the levels of expression of ND1, 51kDa, and 75kDa mRNA associated with the genes encoding NADH dehydrogenase and complex I and that of alpha cardiac myosin heavy chain mRNA in both groups. Mitochondrial NADH oxidoreductase activity was ...

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