Obesity Surgery Rat
Obesity Surgery Rat - Related Videos
12:45
Stereotaxic Surgery for Excitotoxic Lesion of Specific Brain Areas in the Adult Rat
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Cited by 22 •
2012
Targeted ablation of specific brain region(s) by infusion of an excitotoxin using stereotaxic coordinates is described. This technique could also be adapted for infusion of other chemicals into the rat brain.
08:50
Duodenal-Jejunal Bypass Surgery in Diet-Induced Obese Diabetic Mice
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2024
Duodenal-jejunal bypass (DJB) surgery can improve glucose metabolism and reduce insulin resistance. Here, we present a protocol to establish a stable and reliable mouse model of DJB.
04:14
Performing Thoracic Spinal Cord Hemisection Surgery in Rats
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2025
This video demonstrates the surgical procedure for performing a thoracic spinal cord hemisection in rats. It outlines the steps to expose the T8 spinal cord segment, perform the hemisection to disrupt neural tracts on one side, and provide post-operative care.
01:24
Obesity
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2024
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in adipocytes...
07:37
Roux-en-Y Gastric Bypass Operation in Rats
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Cited by 45 •
2012
Numerous studies using gastric bypass rat models have been recently conducted to uncover the underlying physiological mechanisms of Roux-en-Y gastric bypass operations. This article aims to demonstrate and discuss the technical and experimental details of our published gastric bypass rat model to understand advantages and limitations of this experimental tool.
FAQs
Researchers compare food intake with changes in body weight, energy balance, glucose regulation, and eating behavior after surgery. If metabolic outcomes change beyond what reduced meal consumption would predict, the model can indicate physiological adaptations involving nutrient handling or gut-derived hormonal signals. This distinction helps clarify why bariatric procedures affect obesity and diabetes.
Sleeve gastrectomy primarily reduces stomach capacity, whereas Roux-en-Y gastric bypass both changes stomach capacity and reroutes nutrient flow through the gastrointestinal tract. These distinct anatomical changes allow researchers to examine whether observed effects arise mainly from restricted intake, altered nutrient handling, modified gut-derived hormonal signals, or a combination of these mechanisms.
Changes in gut-derived hormonal signals provide a mechanism through which gastrointestinal surgery may influence appetite, eating behavior, energy balance, and glucose regulation. Monitoring these outcomes alongside body weight and food intake helps researchers investigate effects that cannot be explained solely by a smaller stomach or reduced nutrient access. This supports studies of appetite control and metabolic disease.
Postoperative assessment centers on body weight, energy balance, glucose regulation, food intake, and eating behavior. Together, these measurements show whether the intervention changes body mass, caloric balance, metabolic control, or patterns of feeding. Examining several outcomes at once helps distinguish a simple intake-related effect from broader physiological adaptations caused by altered gastrointestinal function.
A study generally selects a bariatric operation, such as sleeve gastrectomy or Roux-en-Y gastric bypass, and then evaluates the rat using measures of weight, food intake, energy balance, glucose regulation, and eating behavior. The resulting pattern is interpreted in relation to the operation’s anatomical changes, allowing investigators to connect gastrointestinal modifications with metabolic and behavioral outcomes.
Researchers use this model to investigate obesity, diabetes, appetite control, and the mechanisms of bariatric surgery. It is especially useful when the question concerns how changing the gastrointestinal tract influences metabolism rather than simply how much food an animal consumes. Findings can help identify biological pathways that may guide improved treatment of metabolic disease.
These studies can reveal whether altered stomach capacity, rerouted nutrient flow, or gut-derived hormonal signals accompany improvements in body weight, energy balance, glucose regulation, or eating behavior. Linking the surgical change to these outcomes helps identify biological pathways associated with metabolic benefits. Such pathway-level information may support efforts to improve therapies for obesity and diabetes.