Related Experiment Video
Updated: May 24, 2025
12:08
Telomere Length and Telomerase Activity; A Yin and Yang of Cell Senescence
Published on: May 22, 2013
46.4K
The relationship between telomere length and aging-related diseases
Xuanqi Huang1, Leyi Huang1, Jiaweng Lu1
1Hangzhou Normal University School of Nursing, Hangzhou, China.
Clinical and Experimental Medicine
|March 5, 2025
Summary
Aging is linked to telomere shortening. This review examines how telomere length (TL) impacts aging-related diseases and explores new therapeutic strategies.
Area of Science:
- Gerontology and Cellular Biology
Background:
- Global populations are aging, increasing focus on aging processes and related disorders.
- Cellular senescence and aging are fundamentally linked to telomere shortening.
- Telomere length (TL) is a critical biomarker for age-related diseases.
Purpose of the Study:
- To review the association between telomeres and aging-related diseases.
- To explore the role of dysfunctional telomeres in disease development and progression.
- To offer insights for novel therapeutic strategies targeting telomere dysfunction.
Main Methods:
- Literature review of current research on telomeres and aging.
- Analysis of studies investigating telomere length as a biomarker.
- Synthesis of findings on the contribution of telomere dysfunction to age-related pathologies.
Main Results:
- Telomere shortening is a key driver of cellular senescence and aging.
- Dysfunctional telomeres significantly contribute to the development and progression of various age-related diseases.
- Evidence supports TL as a relevant biomarker in aging research.
Conclusions:
- Understanding telomere dynamics is crucial for aging research.
- Targeting telomere dysfunction presents a promising avenue for therapeutic interventions in age-related diseases.
- Further research into telomere biology can yield novel strategies for promoting healthy aging.
Related Concept Videos
02:15Replicative Cell Senescence
3.6K
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds...
3.6K
02:41Telomeres and Telomerase
5.0K
5.0K
01:26Aging
34
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.
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...
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...
34
01:29Replication in Eukaryotes
12.9K
In eukaryotic cells, DNA replication is highly conserved and tightly regulated. Multiple linear chromosomes must be duplicated with high fidelity before cell division, so there are many proteins that fulfill specialized roles in the replication process. Replication occurs in three phases: initiation, elongation, and termination, and ends with two complete sets of chromosomes in the nucleus.
Many Proteins Orchestrate Replication at the Origin
Eukaryotic replication follows many of the same...
Many Proteins Orchestrate Replication at the Origin
Eukaryotic replication follows many of the same...
12.9K
01:19The Effect of Aging on Tissues
2.0K
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...
2.0K
01:37Mitochondria
9.4K
Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
9.4K