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The Effect of Aging on Tissues

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Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...

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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
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Related Experiment Video

Updated: May 9, 2026

SA-β-Galactosidase-Based Screening Assay for the Identification of Senotherapeutic Drugs

SA-β-Galactosidase-Based Screening Assay for the Identification of Senotherapeutic Drugs

Published on: June 28, 2019

Slowing the aging process.

Jocelyn Wiggins¹, Markus Bitzer

¹Division of Geriatrics, Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA. wiggi@umich.edu

Clinics in Geriatric Medicine

|July 16, 2013

Summary

This summary is machine-generated.

Aging research is a new field, revealing that aging is a complex biological process influenced by genetics, not just wear and tear. This understanding is shifting perspectives in nephrology regarding age-related kidney function decline.

Keywords:

Aging Cellular processes Chronic kidney disease Genetic pathways

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Last Updated: May 9, 2026

SA-β-Galactosidase-Based Screening Assay for the Identification of Senotherapeutic Drugs

SA-β-Galactosidase-Based Screening Assay for the Identification of Senotherapeutic Drugs

Published on: June 28, 2019

Techniques to Induce and Quantify Cellular Senescence

Techniques to Induce and Quantify Cellular Senescence

Published on: May 1, 2017

Area of Science:

Gerontology and Molecular Biology
Nephrology

Background:

Historically, aging was viewed as inevitable wear and tear.
The concept of aging as a genetically influenced, modifiable biological process is less than two decades old.
Current understanding positions aging as a complex biological process regulated by signaling pathways and transcription factors.

Purpose of the Study:

To explore the evolving understanding of aging as a complex biological process.
To examine the implications of new aging research on the field of nephrology.
To address the debate surrounding age-related decline in renal function.

Main Methods:

Review of recent advancements in aging research.
Analysis of the biological underpinnings of aging, including genetic and molecular factors.
Discussion of current perspectives in nephrology concerning age-related kidney function.

Main Results:

Aging is now recognized as a complex biological process influenced by genetic code.
Signaling pathways and transcription factors are key regulators of aging.
The understanding of aging's biological basis has significantly advanced in the last 20 years.

Conclusions:

The paradigm of aging has shifted from inevitable decline to a modifiable biological process.
New insights into aging mechanisms are crucial for understanding age-related conditions in nephrology.
Further research is needed to differentiate normal aging from kidney disease in older populations.