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Pharmacokinetics in Obese Patients: Drug Absorption and Distribution

Pharmacokinetics in Obese Patients: Drug Absorption and Distribution

Obesity significantly alters the pharmacokinetic processes of drug absorption and distribution, presenting unique challenges in medical treatment. The increased fat tissue and decreased lean muscle in obese individuals can significantly affect how drugs are absorbed into the body and distributed across different tissues. This alteration can lead to variances in the effectiveness and safety of medications, necessitating adjustments in dosing or drug selection for obese patients.One notable...

Obesity

Obesity

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...

Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion

Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion

Drug metabolism, a critical process in the liver, involves two primary phases: Phase I reactions and Phase II conjugation. Obesity introduces significant alterations in this metabolic process, primarily due to fatty infiltration of the liver, leading to conditions such as nonalcoholic fatty liver disease (NAFLD). This condition can modify the activities of both Phase I and II enzymes, impacting how drugs are metabolized in obese patients.Phase I metabolism sees variable effects across...

Drug Dosing: Obese Patients

Drug Dosing: Obese Patients

In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...

Pyloric Obstruction

Pyloric Obstruction

Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...

Type II Diabetes II: Pathophysiology

Type II Diabetes II: Pathophysiology

PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.

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Updated: May 25, 2026

Sleeve Gastrectomy in Mice using Surgical Clips

Sleeve Gastrectomy in Mice using Surgical Clips

Published on: November 14, 2020

[Obesity surgery and its adverse effects].

C Ciangura¹, N Corigliano

¹Pôle d'endocrinologie, groupe hospitalier Pitié-Salpêtrière, AP-HP, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France. cecile.ciangura@psl.aphp.fr

La Revue De Medecine Interne

|January 24, 2012

Summary

Bariatric surgery offers significant long-term benefits for severe obesity, including weight loss and improved quality of life. However, patients must be aware of potential surgical and nutritional complications.

Area of Science:

Bariatric Surgery
Obesity Management
Surgical Complications

Context:

Massive and complicated obesity present significant health challenges, necessitating effective long-term interventions.
Bariatric surgery encompasses various procedures like gastric banding, gastric bypass, sleeve gastrectomy, and biliopancreatic diversion.

Purpose:

To review bariatric surgical techniques and their associated complications.
To discuss patient preparation, follow-up, and care strategies to optimize outcomes and mitigate risks.

Summary:

Bariatric surgery is the most effective long-term treatment for severe obesity, leading to substantial weight loss, comorbidity improvement, enhanced quality of life, and reduced mortality.
Adverse events, including operative risks and surgical, nutritional, or psychological complications, must be carefully considered alongside the benefits.

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Techniques of Sleeve Gastrectomy and Modified Roux-en-Y Gastric Bypass in Mice

Techniques of Sleeve Gastrectomy and Modified Roux-en-Y Gastric Bypass in Mice

Published on: March 20, 2017

One-anastomosis Gastric Bypass (OAGB) in Rats

One-anastomosis Gastric Bypass (OAGB) in Rats

Published on: November 10, 2018

Related Experiment Videos

Last Updated: May 25, 2026

Sleeve Gastrectomy in Mice using Surgical Clips

Sleeve Gastrectomy in Mice using Surgical Clips

Published on: November 14, 2020

Techniques of Sleeve Gastrectomy and Modified Roux-en-Y Gastric Bypass in Mice

Techniques of Sleeve Gastrectomy and Modified Roux-en-Y Gastric Bypass in Mice

Published on: March 20, 2017

One-anastomosis Gastric Bypass (OAGB) in Rats

One-anastomosis Gastric Bypass (OAGB) in Rats

Published on: November 10, 2018

Impact:

Informing patient selection and management protocols for bariatric surgery.
Guiding healthcare professionals in optimizing patient care pathways to improve surgical outcomes and minimize adverse events.