نتایج جستجو برای: type β

تعداد نتایج: 1494932  

Journal: :Acta Crystallographica Section E Structure Reports Online 2013

Journal: :Antimicrobial Agents and Chemotherapy 2002

Journal: :Annali della Scuola normale superiore di Pisa. Classe di scienze 2022

Following recent interest in the qualitative analysis of some optimal control and shape optimisation problems, we provide this article a detailed study Robin boundary conditions PDE constrained calculus variations. Our main model consists an elliptic form −∆u β = f (x, u β) endowed with ∂ν +β(x)u 0. The variable is function β, which assumed to take values between 0 1 have fixed integral. Two ty...

2011
Jae‐Hyoung Cho Ji‐Won Kim Jeong‐Ah Shin Juyoung Shin Kun‐Ho Yoon

The early occurrence of β-cell dysfunction has been broadly recognized as a critical determinant of the development and progression of type 2 diabetes. β-cell dysfunction might be induced by insufficient β-cell mass, by a dysfunction of the β-cells, or both. Whether or not β-cell dysfunction constitutes a cause of reduced β-cells or vice-versa currently remains unclear. The results of some stud...

2010
Linyuan Wang Yunfeng Liu Shun Yan Lu Kinh-Tung T. Nguyen Stephanie A. Schroer Akira Suzuki Tak W. Mak Herbert Gaisano Minna Woo

OBJECTIVE Type 2 diabetes is characterized by diminished pancreatic β-cell mass and function. Insulin signaling within the β-cells has been shown to play a critical role in maintaining the essential function of the β-cells. Under basal conditions, enhanced insulin-PI3K signaling via deletion of phosphatase with tensin homology (PTEN), a negative regulator of this pathway, leads to increased β-c...

2016
Alexandre G. de Brevern

The functional properties of a protein primarily depend on its three-dimensional (3D) structure. These properties have classically been assigned, visualized and analysed on the basis of protein secondary structures. The β-turn is the third most important secondary structure after helices and β-strands. β-turns have been classified according to the values of the dihedral angles φ and ψ of the ce...

2011
Gil Leibowitz Nurit Kaiser Erol Cerasi

Type 2 diabetic patients are insulin resistant as a result of obesity and a sedentary lifestyle. Nevertheless, it has been known for the past five decades that insulin response to nutrients is markedly diminished in type 2 diabetes. There is now a consensus that impaired glucose regulation cannot develop without insulin deficiency. First-phase insulin response to glucose is lost very early in t...

2011
Jing Yong Julia Rasooly Hoa Dang Yuxin Lu Blake Middleton Zesong Zhang Larry Hon Mohammad Namavari David B. Stout Mark A. Atkinson Jide Tian Sanjiv Sam Gambhir Daniel L. Kaufman

OBJECTIVE β-Cells that express an imaging reporter have provided powerful tools for studying β-cell development, islet transplantation, and β-cell autoimmunity. To further expedite diabetes research, we generated transgenic C57BL/6 "MIP-TF" mice that have a mouse insulin promoter (MIP) driving the expression of a trifusion (TF) protein of three imaging reporters (luciferase/enhanced green fluor...

Journal: :modares journal of medical sciences: pathobiology 2007
maryam bikhof torbati hossein khanahmad fatemeh jamshidi morteza karimipour majid sadeghizadeh

objective: β-thalassemia is caused by absence or reduction of β-globin chain synthesis. one of the effective therapeutic methods for this disease can be gene therapy by viral vectors. the capacity of lentiviral vectors is approximately 8 kb, we designed a 6 kb construct containing mini lcr and β-globin gene instead of lcr region. the aim of this study is to make a recombinant lentiviruses conta...

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