Related Experiment Video
Updated: Mar 21, 2026

Assessing Lysosomal Alkalinization in the Intestine of Live Caenorhabditis elegans
Published on: April 13, 2018
Normal Variants and Effects of Aging on the Gastrointestinal Tract
Rakesh Kumar1, Jaseena Elikkottil1, Suhas Singla1
1Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi 110029, India.
Abstract:
The elderly constitute a significant proportion of patient population in most developed countries, and their numbers are expected to increase in the coming years. The number of clinical applications for PET and PET/CT continue to increase. Like other imaging techniques, there are a large number of variants and artifacts in PET and PET/CT, which can result in false-positive results. Understanding normal age-related changes that can lead to imaging variants and artifacts in structure and function of the human body is very important. This article reviews normal age-related variants and artifacts in the imaging appearance of the gastrointestinal tract.
Related Concept Videos
The Effect of Aging on Tissues
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Metabolism
Aging
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution
Pharmacodynamics in Geriatric Patients: Effects of Age

