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Related Concept Videos

Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are not...
Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism

Geriatric patients show significant variation in how their bodies process medications, which can change how effective and safe treatments are. The liver is the primary organ where drug metabolism occurs, involving two main types of chemical reactions: phase I and II. Phase I metabolism is driven by the cytochrome P450 enzyme system, which includes key types such as CYP3A, CYP2D6, and CYP2C9. Research indicates that while aging doesn't notably alter the levels or activity of these enzymes, it...

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Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro
11:52

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro

Published on: April 21, 2023

Antibacterial agents in the elderly.

Stephen Weber1, Emily Mawdsley, Donald Kaye

  • 1Section of Infectious Diseases and Global Health, University of Chicago Medical Center, 5841 South Maryland Avenue, MC 5065, Chicago, IL 60637, USA. sgweber@medicine.bsd.uchicago.edu

Infectious Disease Clinics of North America
|November 14, 2009
PubMed
Summary
This summary is machine-generated.

Older adults face significant infection risks. Effective antimicrobial therapy requires understanding unique age-related factors for personalized treatment strategies.

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Area of Science:

  • Gerontology
  • Infectious Diseases
  • Pharmacology

Background:

  • Older adults experience a disproportionately high burden of infections in both community and healthcare settings.
  • Infection management in elderly populations is complicated by unique immunologic, epidemiologic, pharmacologic, and microbiologic factors.

Purpose of the Study:

  • To outline a rational approach to antimicrobial therapy for infections in older patients.
  • To emphasize the need for tailored treatment strategies considering individual patient needs.

Main Methods:

  • Review of complex factors influencing infection in older adults.
  • Synthesis of current knowledge on antimicrobial therapy for this demographic.

Main Results:

  • Antimicrobial therapy in older patients necessitates a comprehensive understanding of age-related physiological changes.
  • Standard treatment guidelines may not be optimal and require modification for elderly individuals.

Conclusions:

  • A tailored, individualized approach to antimicrobial therapy is crucial for effectively managing infections in older patients.
  • Further research and clinical guidelines should specifically address the unique aspects of infectious diseases in the geriatric population.