PMID- 26959059 OWN - NLM STAT- MEDLINE DCOM- 20161213 LR - 20220408 IS - 2072-6643 (Electronic) IS - 2072-6643 (Linking) VI - 8 IP - 3 DP - 2016 Mar 5 TI - The Potential Protective Action of Vitamin D in Hepatic Insulin Resistance and Pancreatic Islet Dysfunction in Type 2 Diabetes Mellitus. PG - 147 LID - 10.3390/nu8030147 [doi] LID - 147 AB - Vitamin D deficiency (i.e., hypovitaminosis D) is associated with increased insulin resistance, impaired insulin secretion, and poorly controlled glucose homeostasis, and thus is correlated with the risk of metabolic diseases, including type 2 diabetes mellitus (T2DM). The liver plays key roles in glucose and lipid metabolism, and its dysregulation leads to abnormalities in hepatic glucose output and triglyceride accumulation. Meanwhile, the pancreatic islets are constituted in large part by insulin-secreting beta cells. Consequently, islet dysfunction, such as occurs in T2DM, produces hyperglycemia. In this review, we provide a critical appraisal of the modulatory actions of vitamin D in hepatic insulin sensitivity and islet insulin secretion, and we discuss the potential roles of a local vitamin D signaling in regulating hepatic and pancreatic islet functions. This information provides a scientific basis for establishing the benefits of the maintenance, or dietary manipulation, of adequate vitamin D status in the prevention and management of obesity-induced T2DM and non-alcoholic fatty liver disease. FAU - Leung, Po Sing AU - Leung PS AD - School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China. psleung@cuhk.edu.hk. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20160305 PL - Switzerland TA - Nutrients JT - Nutrients JID - 101521595 RN - 0 (Blood Glucose) RN - 0 (Insulin) RN - 1406-16-2 (Vitamin D) SB - IM MH - Animals MH - Blood Glucose/metabolism MH - Diabetes Mellitus, Type 2/epidemiology/*metabolism/physiopathology/prevention & control MH - Humans MH - Insulin/blood MH - *Insulin Resistance MH - Islets of Langerhans/*metabolism/physiopathology MH - Liver/*metabolism/physiopathology MH - Protective Factors MH - Risk Factors MH - Signal Transduction MH - Vitamin D/*metabolism MH - Vitamin D Deficiency/epidemiology/*metabolism/physiopathology PMC - PMC4808876 OTO - NOTNLM OT - HepG2 OT - calcitriol OT - glucose homeostasis OT - hypovitaminosis D OT - insulin secretion OT - lipid metabolism EDAT- 2016/03/10 06:00 MHDA- 2016/12/15 06:00 PMCR- 2016/03/01 CRDT- 2016/03/10 06:00 PHST- 2015/11/20 00:00 [received] PHST- 2016/02/26 00:00 [revised] PHST- 2016/02/29 00:00 [accepted] PHST- 2016/03/10 06:00 [entrez] PHST- 2016/03/10 06:00 [pubmed] PHST- 2016/12/15 06:00 [medline] PHST- 2016/03/01 00:00 [pmc-release] AID - nu8030147 [pii] AID - nutrients-08-00147 [pii] AID - 10.3390/nu8030147 [doi] PST - epublish SO - Nutrients. 2016 Mar 5;8(3):147. doi: 10.3390/nu8030147.