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Related Concept Videos

Obesity01:24

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 Absorption and Distribution01:25

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

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 Patients01:21

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...
Lifestyle Factors and Health01:20

Lifestyle Factors and Health

Lifestyle factors play a critical role in maintaining overall health and preventing chronic diseases. Key elements, such as regular physical activity, a nutritious diet, and abstinence from smoking, can significantly enhance physical, mental, and emotional well-being while reducing the risk of several life-threatening conditions.
Benefits of Physical Activity
Physical activity, whether through structured exercise or casual activities like walking, biking, or dancing, is a cornerstone of a...
Bioavailability Study Design: Healthy Subjects Versus Patients01:15

Bioavailability Study Design: Healthy Subjects Versus Patients

Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...

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Assessment of Child Anthropometry in a Large Epidemiologic Study
09:36

Assessment of Child Anthropometry in a Large Epidemiologic Study

Published on: February 2, 2017

Adult obesity: panel study from native Amazonians.

Wu Zeng1, Dan T A Eisenberg, Karla Rubio Jovel

  • 1Heller School, Brandeis University, Waltham, MA 02454, USA. wuzengcn@brandeis.edu

Economics and Human Biology
|May 18, 2012
PubMed
Summary

This study on Bolivian Tsimane

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Area of Science:

  • Anthropology
  • Human Biology
  • Public Health

Background:

  • Obesity is a growing global health concern.
  • Understanding obesity in diverse populations is crucial.
  • The Tsimane' population offers a unique context for studying obesity.

Purpose of the Study:

  • To examine obesity indicators in a native Amazonian population.
  • To assess associations between obesity and covariates like SES.
  • To analyze obesity trends over a five-year period.

Main Methods:

  • Data collected annually from 2002-2006 from Tsimane' adults.
  • Used body-mass index (BMI), waist circumference (WC), and body fat (BF-BIA) as obesity indicators.
  • Employed random-effect panel regressions with wealth, acculturation, and food availability as covariates.

Main Results:

  • Observed statistically significant annual increases in BMI for both men and women.
  • These BMI increases were not biologically significant.
  • No consistent or biologically meaningful covariates were associated with adult obesity.

Conclusions:

  • While BMI shows a slight annual increase, it does not indicate a significant obesity epidemic in the Tsimane' population during the study period.
  • Socioeconomic status and acculturation did not emerge as strong predictors of obesity in this context.
  • Further research is needed to understand long-term obesity trends and determinants in indigenous Amazonian populations.