Sleeve gastrectomy model in Wistar rats

Area of Science:

• Bariatric Surgery Research
• Animal Models in Obesity Studies
• Surgical Innovation

Background:

• Sleeve gastrectomy (SG) is a key surgical intervention for morbid obesity.
• Establishing reliable animal models is crucial for advancing bariatric procedures.
• This study focused on developing an SG model in Wistar rats.

Purpose of the Study:

• To establish a reproducible animal model for sleeve gastrectomy (SG).
• To evaluate the initial effects of SG on weight in Wistar rats.
• To provide a foundation for investigating the physiological mechanisms of SG.

Main Methods:

• 12 male Wistar rats were utilized, with 8 undergoing SG and 4 serving as controls (laparotomy only).
• A hand-sewn invaginating suture technique was employed for the SG procedure.
• Animal weight was monitored weekly for 7 weeks, with strict adherence to sterile techniques and perioperative care.

Main Results:

• The experimental sleeve gastrectomy model was successfully established.
• Rats in the SG group exhibited significant weight loss (average 49.6g by week 4) compared to controls.
• While both groups gained weight after 7 weeks, the SG group's weight gain was notably lower.

Conclusions:

• A viable experimental model for sleeve gastrectomy in Wistar rats has been developed.
• Sleeve gastrectomy shows promising beneficial effects on weight management in this model.
• This animal model opens avenues for exploring the biochemical and molecular underpinnings of SG's efficacy.