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Antibiotic Selection

Antibiotic Selection

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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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 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...

Obesity

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Related Experiment Video

Updated: May 18, 2026

Examination of Host Phenotypes in Gambusia affinis Following Antibiotic Treatment

Examination of Host Phenotypes in Gambusia affinis Following Antibiotic Treatment

Published on: February 22, 2017

Antibiotic exposure promotes fat gain.

Alice P Liou¹, Peter J Turnbaugh

¹Obesity, Nutrition, and Metabolism Institute, Massachusetts General Hospital, Boston, MA 02114, USA.

Cell Metabolism

|October 9, 2012

Summary

Subtherapeutic antibiotic treatment in mice promotes obesity by altering gut microbiota. This suggests microorganisms play a role in adiposity beyond diet and genetics.

Area of Science:

Microbiology
Gastroenterology
Obesity Research

Background:

Obesity is a complex condition influenced by genetic and dietary factors.
The gut microbiome, comprising trillions of microorganisms, is increasingly recognized for its role in host physiology.
Emerging research suggests a link between gut microbial composition and metabolic health.

Discussion:

Subtherapeutic antibiotic administration in mice led to increased adiposity.
This finding supports the hypothesis that the gut microbiota can influence host energy balance and fat accumulation.
The study highlights the potential impact of environmental factors, such as antibiotic use, on the gut microbiome and host metabolism.

Key Insights:

Gut microorganisms can promote adiposity.

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Last Updated: May 18, 2026

Examination of Host Phenotypes in Gambusia affinis Following Antibiotic Treatment

Examination of Host Phenotypes in Gambusia affinis Following Antibiotic Treatment

Published on: February 22, 2017

Quantitative Polymerase Chain Reaction-based Analyses of Murine Intestinal Microbiota After Oral Antibiotic Treatment

Quantitative Polymerase Chain Reaction-based Analyses of Murine Intestinal Microbiota After Oral Antibiotic Treatment

Published on: November 17, 2018

Isolation of Adipose Tissue Immune Cells

Isolation of Adipose Tissue Immune Cells

Published on: May 22, 2013

Antibiotic-induced alterations in the gut microbiome may contribute to obesity development.

The gut microbiota represents a potential therapeutic target for obesity management.

Outlook:

Further research is needed to elucidate the specific microbial mechanisms driving antibiotic-induced adiposity.
Investigating the long-term metabolic consequences of subtherapeutic antibiotic exposure is crucial.
Exploring the therapeutic potential of modulating the gut microbiome to prevent or treat obesity is a promising avenue.