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Filename: controllers/Detail.php
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Function: _error_handler
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Filename: controllers/Detail.php
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Function: _error_handler
File: /var/www/html/index.php
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Function: _error_handler
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Filename: models/Detail_model.php
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Function: strpos
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Function: insertAPISummary
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Function: formatAIDetailSummary
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Focal adhesion kinase (FAK), a non-receptor tyrosine kinase, has recently been implicated in the regulation of insulin resistance in vitro. However, its in vivo validation has not been attempted due to lethality of FAK knockout. Hence, to ascertain the role of FAK in the development of insulin resistance in vivo, we have down-regulated FAK expression by delivering FAK-specific small interfering RNA (siRNA) in mice using hydrodynamic tail vein injection. Here, we show for the first time that FAK silencing (57 +/- 0.05% in muscle and 80 +/- 0.08% in liver) exacerbates insulin signalling and causes hyperglycaemia (251.68 +/- 8.1 mg dl(-1)) and hyperinsulinaemia (3.48 +/- 0.06 ng ml(-1)) in vivo. FAK-silenced animals are less glucose tolerant and have physiological and biochemical parameters similar to that of high fat diet (HFD)-fed insulin-resistant animals. Phosphorylation and expression of insulin receptor substrate 1 (IRS-1) was attenuated by 40.2 +/- 0.03% and 35.2 +/- 0.6% in muscle and 52.3 +/- 0.04% and 40.2 +/- 0.03% in liver in FAK-silenced mice. Akt-Ser473-phosphorylation decreased in muscle and liver (50.3 +/- 0.03% and 70.2 +/- 0.02%, respectively) in FAK-silenced mice. This, in part, explains the mechanism of development of insulin resistance in FAK-silenced mice. The present study provides direct evidence that FAK is a crucial mediator of insulin resistance in vivo. Considering the lethality of FAK gene knockout the approach of this study will provide a new strategy for in vivo inhibition of FAK. Furthermore, the study should certainly motivate chemists to synthesize new chemical entities for FAK activation. This may shed light on new drug development against insulin resistance.
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http://dx.doi.org/10.1113/jphysiol.2008.157107 | DOI Listing |
Discov Oncol
December 2024
Department of Hematology, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan.
Patients with chronic myeloid leukemia (CML) frequently develop resistance to tyrosine kinase inhibitors such as imatinib. In this study, we explored the role of the insulin-like growth factor 1 (IGF-1) signaling pathway in CML and imatinib resistance. An analysis of IGF-1 gene expression using public databases revealed elevated levels of insulin-like growth factor-binding proteins in patients with chronic-phase CML.
View Article and Find Full Text PDFBMJ Open Diabetes Res Care
December 2024
Department of Medicine, The University of Tennessee Health Science Center College of Medicine, Memphis, Tennessee, USA
Introduction: Ethnic disparities in the prevalence and pathophysiology of type 2 diabetes are well documented, but prospective data on insulin dynamics vis-à-vis pre-diabetes/early dysglycemia risk in diverse populations are scant.
Research Design And Methods: We analyzed insulin secretion, sensitivity, and clearance among participants in the Pathobiology of Prediabetes in a Biracial Cohort (POP-ABC) study. The POP-ABC study followed initially normoglycemic offspring of parents with type 2 diabetes for 5.
Diabetes Res Clin Pract
December 2024
Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark.
Aims: We investigated the association of the inflammatory biomarker YKL-40 with cardiovascular events (CVEs) and mortality in individuals with type 2 diabetes.
Methods: We followed 11,346 individuals recently diagnosed with type 2 diabetes for up to 14 years. Baseline YKL-40 levels (measured in 9,010 individuals) were grouped into percentiles (0-33 %, 34-66 %, 67-90 %, and 91-100 %) and analyzed continuously (per 1 SD log increment), with comparisons to CRP (measured in 9,644 individuals).
NPJ Sci Food
December 2024
Institute of Agricultural Biotechnology, Jingchu University of Technology, Jingmen, China.
Artemisia argyi Lévl. et Vant. (A.
View Article and Find Full Text PDFAmino Acids
December 2024
Department of Gastroenterology and Hepatology, Kohnodai Hospital, National Center for Global Health and Medicine, 1-7-1 Kohnodai, Ichikawa, Chiba, 272-8516, Japan.
Little is known about how blood free amino acids (FAAs) change in metabolic dysfunction-associated steatotic liver disease (MASLD). This study aims to identify the imbalance of FAAs in MASLD and explore its correction as a potential therapeutic target. We analyzed plasma FAAs data from 23,036 individuals with steatosis information from a biobank in Japan, and 310 patients with MASLD were enrolled.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!