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Related Concept Videos

Obesity01:24

Obesity

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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...
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Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion01:20

Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion

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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...
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Pharmacokinetics in Obese Patients: Drug Absorption and Distribution01:25

Pharmacokinetics in Obese Patients: Drug Absorption and Distribution

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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...
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Drug Dosing: Obese Patients01:21

Drug Dosing: Obese Patients

16
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...
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Gallbladder01:17

Gallbladder

1.1K
The gallbladder is a small, pear-shaped organ that plays a crucial role in our digestive system. Measuring about 10 cm in length, it is comparable in size to a kiwi fruit and is located in a hollow area on the lower surface of the liver. The gallbladder's primary function is to store and concentrate bile, a fluid produced by the liver that aids in digestion.
The gallbladder's anatomy consists of three regions: the fundus, body, and neck. Extending from the neck, the cystic duct joins...
1.1K
Diseases of the Liver and Gallbladder01:26

Diseases of the Liver and Gallbladder

1.4K
Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not...
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Obesity and Gallstones.

Nela Melissa Parra-Landazury1, Jacqueline Cordova-Gallardo2,3, Nahum Méndez-Sánchez3,4

  • 1Department of Internal Medicine, General Hospital "Dr. Manuel Gea González", Mexico City, Mexico.

Visceral Medicine
|November 1, 2021
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Summary

Obesity is a primary driver of gallstone disease (GD). Managing modifiable risk factors like diet and lifestyle is crucial for preventing this condition and reducing its significant health burden.

Keywords:
Bile acidsBiliary lipidsCholecystokininGallstonesNuclear receptors

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Area of Science:

  • Gastroenterology
  • Public Health
  • Epidemiology

Background:

  • Global obesity prevalence is rising, significantly increasing gallstone disease (GD) risk.
  • Excess body weight is identified as the primary cause of gallstone disease.

Purpose of the Study:

  • To explore the multifaceted risk factors contributing to gallstone disease development.
  • To highlight the association between adiposity metrics and metabolic dysfunction in GD pathogenesis.

Main Methods:

  • Review of established risk factors for gallstone disease.
  • Analysis of anthropometric indices (BMI, waist-hip ratio) in relation to adiposity.
  • Examination of the link between central obesity, insulin resistance, and hepatic cholesterol secretion.

Main Results:

  • Excess body weight is the leading cause of gallstone disease.
  • Both modifiable (diet, lifestyle, physical inactivity) and non-modifiable (ethnicity, sex, age, parity, genetics) factors contribute to GD.
  • Central abdominal fat is strongly linked to insulin resistance and increased hepatic cholesterol secretion, a key mechanism in gallstone formation.

Conclusions:

  • Gallstone disease is a significant health burden, necessitating intervention in modifiable risk factors.
  • Shared risk factors link gallstone disease with other conditions like cardiovascular disease, metabolic fatty liver disease, and gallbladder cancer.