scholarly journals Impact of Bariatric Surgery on Ghrelin and Obestatin Levels in Obesity or Type 2 Diabetes Mellitus Rat Model

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Donglei Zhou ◽  
Xun Jiang ◽  
Weixing Ding ◽  
Dingyu Zhang ◽  
Lei Yang ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Bariatric Surgery ◽  
Type 2 Diabetes Mellitus ◽  
Weight Control ◽  
Sham Operation ◽  
Gk Rats ◽  
Obese Rats ◽  
To Receive

We aimed to evaluate the therapeutic efficacy on weight control by different bariatric surgeries and investigate the ghrelin and obestatin changes after these surgeries in obesity and nonobese type 2 diabetes mellitus (T2DM) rats. Obese rats were randomly assigned to receive sleeve gastrectomy (SG,n=8), minigastric bypass (MGBP,n=8), roux-en-Y gastric bypass (RYGBP,n=8), and sham operation (SO,n=4). Another 4 rats served as control. Besides, Goto-Kakisaki (GK) rats were also randomly divided into similar groups except for total gastrectomy (TG,n=8) group. The results showed that in obese rats, weigh loss in RYGBP group was similar to that in MGBP group but larger than that in SG group. Ghrelin significantly increased in RYGB group, but obestatin increased in MGBP group. Ghrelin/obestatin ratio significantly decreased in SG group. In GK rats, weight loss was most obvious in TG group. Postoperatively, ghrelin was significantly increased in MGBP and RYGB groups but decreased in TG group. Obestatin also showed an increase in MGBP and RYGB groups. Ghrelin/obestatin in TG group decreased significantly. In conclusion, RYGB and MGBP may be more suitable for obese rats, but TG may be the best strategy for T2DM rats to control weight with different mechanisms.

Influence of Bariatric Surgery on the Expression of Nesfatin-1 in Rats with Type 2 Diabetes Mellitus

2015 ◽  
Vol 21 (11) ◽  
pp. 1464-1471 ◽  
Author(s):  
Zefeng Xia ◽  
Geng Wang ◽  
Huiqing Li ◽  
Chaojie Hu ◽  
Qingbo Wang ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Bariatric Surgery ◽  
Type 2 Diabetes Mellitus

The Impact of Bariatric Surgery in Patients with Type-2 Diabetes Mellitus

2011 ◽  
Vol 7 (3) ◽  
pp. 185-189 ◽  
Author(s):  
Richdeep S. Gill ◽  
Arya M. Sharma ◽  
David P. Al-Adra ◽  
Daniel W. Birch ◽  
Shahzeer Karmali
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Bariatric Surgery ◽  
Type 2 Diabetes Mellitus ◽  
The Impact

Insulin Dose Adjustment Following Bariatric Surgery, a Review of Available Literature

2021 ◽  
pp. 193229682110288
Author(s):  
Lynn E. Kassel ◽  
Jessica J. Berei ◽  
Jamie M. Pitlick ◽  
Joel E. Rand
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Bariatric Surgery ◽  
Type 2 Diabetes Mellitus ◽  
Dose Adjustment ◽  
Insulin Dose ◽  
Appraisal Tool

Bariatric surgery is a known and effective treatment for type 2 diabetes mellitus. Patients with type 1 diabetes mellitus and exogenous insulin-requiring type 2 diabetes mellitus require adjusted insulin dosing after surgery to avoid hypoglycemia. This review describes insulin dose adjustments following a variety of bariatric procedures. After searching the available literature and assessing for eligibility, 8 articles were included. The Johns Hopkins Research Evidence Appraisal Tool for literature appraisal was used. The results of this review reveal insulin dose adjustment varies based upon surgical procedure type and time of follow-up from the procedure.

scholarly journals Three-Year Outcomes of Bariatric Surgery vs Lifestyle Intervention for Type 2 Diabetes Mellitus Treatment

JAMA Surgery ◽  
2015 ◽  
Vol 150 (10) ◽  
pp. 931 ◽  
Author(s):  
Anita P. Courcoulas ◽  
Steven H. Belle ◽  
Rebecca H. Neiberg ◽  
Sheila K. Pierson ◽  
Jessie K Eagleton ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Bariatric Surgery ◽  
Type 2 Diabetes Mellitus ◽  
Lifestyle Intervention ◽  
Diabetes Mellitus Treatment

scholarly journals Type 2 diabetes mellitus in the Goto-Kakizaki rat impairs microvascular function and contributes to premature skeletal muscle fatigue

2019 ◽  
Vol 126 (3) ◽  
pp. 626-637 ◽  
Author(s):  
Jefferson C. Frisbee ◽  
Matthew T. Lewis ◽  
Jonathan D. Kasper ◽  
Paul D. Chantler ◽  
Robert W. Wiseman
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Skeletal Muscle ◽  
Type 2 Diabetes Mellitus ◽  
Structure Function ◽  
Vascular Structure ◽  
Gk Rats ◽  
The Impact

Despite extensive investigation into the impact of metabolic disease on vascular function and, by extension, tissue perfusion and organ function, interpreting results for specific risk factors can be complicated by the additional risks present in most models. To specifically determine the impact of type 2 diabetes without obesity on skeletal muscle microvascular structure/function and on active hyperemia with elevated metabolic demand, we used 17-wk-old Goto-Kakizaki (GK) rats to study microvascular function at multiple levels of resolution. Gracilis muscle arterioles demonstrated blunted dilation to acetylcholine (both ex vivo proximal and in situ distal arterioles) and elevated shear (distal arterioles only). All other alterations to reactivity appeared to reflect compromised endothelial function associated with increased thromboxane (Tx)A2 production and oxidant stress/inflammation rather than alterations to vascular smooth muscle function. Structural changes to the microcirculation of GK rats were confined to reduced microvessel density of ~12%, with no evidence for altered vascular wall mechanics. Active hyperemia with either field stimulation of in situ cremaster muscle or electrical stimulation via the sciatic nerve for in situ gastrocnemius muscle was blunted in GK rats, primarily because of blunted functional dilation of skeletal muscle arterioles. The blunted active hyperemia was associated with impaired oxygen uptake (V̇o2) across the muscle and accelerated muscle fatigue. Acute interventions to reduce oxidant stress (TEMPOL) and TxA2 action (SQ-29548) or production (dazmegrel) improved muscle perfusion, V̇o2, and muscle performance. These results suggest that type 2 diabetes mellitus in GK rats impairs skeletal muscle arteriolar function apparently early in the progression of the disease and potentially via an increased reactive oxygen species/inflammation-induced TxA2 production/action on network function as a major contributing mechanism. NEW & NOTEWORTHY The impact of type 2 diabetes mellitus on vascular structure/function remains an area lacking clarity. Using diabetic Goto-Kakizaki rats before the development of other risk factors, we determined alterations to vascular structure/function and skeletal muscle active hyperemia. Type 2 diabetes mellitus reduced arteriolar endothelium-dependent dilation associated with increased thromboxane A2 generation. Although modest microvascular rarefaction was evident, there were no other alterations to vascular structure/function. Skeletal muscle active hyperemia was blunted, although it improved after antioxidant or anti-thromboxane A2 treatment.

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