نتایج جستجو برای: syn dienvelope

تعداد نتایج: 6083  

2018
Jessika C. Bridi Frank Hirth

Parkinson's disease (PD) is characterized by intracellular inclusions of aggregated and misfolded α-Synuclein (α-Syn), and the loss of dopaminergic (DA) neurons in the brain. The resulting motor abnormalities mark the progression of PD, while non-motor symptoms can already be identified during early, prodromal stages of disease. Recent studies provide evidence that during this early prodromal p...

Journal: :Zootaxa 2015
Jing-Fu Tsai Dávid Rédei

The genus level diagnostic characters of Acanthosoma Curtis, 1824, Anaxandra Stål, 1876, and Sastragala Amyot & Serville, 1843 (Hemiptera: Heteroptera: Acanthosomatidae) are discussed. The synonymy of Acanthosoma and Anaxandra proposed by Kumar (1974) is supported. Acanthosoma and Sastragala are redefined and recognized as valid genera. The identities of various species of Acanthosoma are clari...

2018
Roni Bar Anat Boehm-Cagan Ishai Luz Yarden Kleper-Wall Daniel M. Michaelson

Introduction Alzheimer's disease (AD) and synucleinopathies share common pathological mechanisms. Apolipoprotein E4 (apoE4), the most prevalent genetic risk factor for AD, also increases the risk for dementia in pure synucleinopathies. We presently examined the effects of α-synuclein deficiency (α-syn-/-) and sex on apoE4-driven pathologies. Methods AD-related, synaptic, and vascular markers ...

Journal: :Annals of neurology 2015
Judith Eschbach Björn von Einem Kathrin Müller Hanna Bayer Annika Scheffold Bradley E Morrison K Lenhard Rudolph Dietmar R Thal Anke Witting Patrick Weydt Markus Otto Michael Fauler Birgit Liss Pamela J McLean Albert R La Spada Albert C Ludolph Jochen H Weishaupt Karin M Danzer

OBJECTIVE Aggregation of α-synuclein (α-syn) and α-syn cytotoxicity are hallmarks of sporadic and familial Parkinson disease (PD), with accumulating evidence that prefibrillar oligomers and protofibrils are the pathogenic species in PD and related synucleinopathies. Peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α), a key regulator of mitochondrial biogenesis and cellular ene...

2013
Chi L. L. Pham Roberto Cappai

The deposition of α-syn (α-synuclein) as amyloid fibrils and the selective loss of DA (dopamine) containing neurons in the substantia nigra are two key features of PD (Parkinson's disease). α-syn is a natively unfolded protein and adopts an α-helical conformation upon binding to lipid membrane. Oligomeric species of α-syn have been proposed to be the pathogenic species associated with PD becaus...

2017
Dan Zhu Li Xie Youhou Kang Subhankar Dolai Jakob Bondo Hansen Tairan Qin Huanli Xie Tao Liang Deborah C. Rubin Lucy Osborne Herbert Y. Gaisano

Of the four syntaxins specialized for exocytosis, syntaxin (Syn)-2 is the least understood. In this study, we used Syn-2/epimorphin knockout mice to examine the role of Syn-2 in insulin secretory granule (SG) exocytosis. Unexpectedly, Syn-2 knockout mice exhibited paradoxical superior glucose homeostasis resulting from an enhanced insulin secretion. This was confirmed in vitro by pancreatic isl...

Journal: :The Journal of biological chemistry 2013
Myriam M Ouberai Juan Wang Marcus J Swann Celine Galvagnion Tim Guilliams Christopher M Dobson Mark E Welland

There is increasing evidence for the involvement of lipid membranes in both the functional and pathological properties of α-synuclein (α-Syn). Despite many investigations to characterize the binding of α-Syn to membranes, there is still a lack of understanding of the binding mode linking the properties of lipid membranes to α-Syn insertion into these dynamic structures. Using a combination of a...

Journal: :Arthritis Research & Therapy 2006
Beixue Gao Karen Calhoun Deyu Fang

The overgrowth of synovial tissues is critical in the pathogenesis of rheumatoid arthritis (RA). The expression of Synoviolin (SYN), an E3 ubiquitin ligase, is upregulated in arthritic synovial fibroblasts and is involved in the overgrowth of synovial cells during RA. However, the molecular mechanisms involved in the elevated SYN expression are not known. Here, we found that SYN expression is e...

Journal: :American journal of physiology. Cell physiology 2011
Pei-Chun Chen Cathrin E Bruederle Herbert Y Gaisano Show-Ling Shyng

The pancreatic ATP-sensitive potassium (K(ATP)) channel consisting of four inwardly rectifying potassium channel 6.2 (Kir6.2) and four sulfonylurea receptor SUR1 subunits plays a key role in insulin secretion by linking glucose metabolism to membrane excitability. Syntaxin 1A (Syn-1A) is a plasma membrane protein important for membrane fusion during exocytosis of insulin granules. Here, we show...

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