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Related Concept Videos

Regulation of Food Intake01:30

Regulation of Food Intake

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Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
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Hypoglycemia and Glucagon01:15

Hypoglycemia and Glucagon

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Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...
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Glucagon-like Receptor Agonists01:24

Glucagon-like Receptor Agonists

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Incretins include glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), which stimulate insulin secretion post-meals. In type 2 diabetes, GIP's efficacy is reduced, making GLP-1 a viable drug target. GIP originates from preproGIP.
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by...
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Insulin: Dosing Regimen and Adverse Effects01:16

Insulin: Dosing Regimen and Adverse Effects

169
Insulin-replacement therapy usually includes both long-acting insulin (basal) and short-acting insulin (to cater to postprandial needs). In a diverse group of type 1 diabetes patients, the average daily insulin dose is typically 0.5-0.7 units/kg body weight. However, obese patients and pubertal adolescents may need more due to insulin resistance.
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
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Hormonal Regulation01:40

Hormonal Regulation

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Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.
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Peptic Ulcer Disease V: Surgical Management and Nursing Care01:25

Peptic Ulcer Disease V: Surgical Management and Nursing Care

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Surgical management and nursing care are crucial in treating Peptic Ulcer Disease (PUD). Here is an organized and enhanced overview of the surgical interventions and the associated nursing care for PUD:
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Related Experiment Video

Updated: Jun 28, 2025

Roux-en-Y Gastric Bypass Operation in Rats
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[Serum ghrelin changes after bariatric surgery].

O V Galimov1, V O Khanov1, K V Nasyrova1

  • 1Bashkir State Medical University, Ufa, Russia.

Khirurgiia
|April 18, 2024
PubMed
Summary
This summary is machine-generated.

Bariatric surgery impacts serum ghrelin levels in morbidly obese patients. Stomach volume reduction after surgery leads to a mild increase in ghrelin, correlating with weight loss.

Keywords:
bariatric surgeryexperimentghrelin

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Related Experiment Videos

Last Updated: Jun 28, 2025

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Area of Science:

  • Endocrinology
  • Bariatric Surgery
  • Obesity Research

Context:

  • Morbid obesity presents significant health challenges.
  • Bariatric surgery is a common treatment for morbid obesity.
  • Ghrelin, a hunger hormone, plays a role in appetite regulation and body weight.

Purpose:

  • To investigate the effect of bariatric surgery on serum ghrelin levels.
  • To analyze ghrelin changes in relation to body weight reduction post-surgery.
  • To explore potential therapeutic implications for obesity management.

Summary:

  • Serum ghrelin levels were analyzed in rats and patients undergoing bariatric surgery.
  • Baseline ghrelin was lower in larger rats and obese patients.
  • Contrary to expectations, no decrease in ghrelin was observed after fundectomy; however, restrictive surgeries led to a mild ghrelin increase, greater with more weight loss.

Impact:

  • Findings suggest that restrictive bariatric procedures influence ghrelin secretion.
  • The observed ghrelin increase post-surgery may be linked to weight loss outcomes.
  • Further research could inform novel treatment strategies for pathological obesity.