Features
The role of Telomeres in the lifespan of men and women
TELOMERES, the protective caps on the ends of chromosomes, play a crucial role in maintaining genomic stability and regulating cellular aging.
The length of telomeres has been associated with lifespan and age-related diseases, with recent studies highlighting sex differences in telomere biology.
This article provides a comprehensive review of the current knowledge on the role of telomeres in the lifespan of men and women, highlighting the physiological and molecular mechanisms underlying these differences.
Introduction
Telomeres are repetitive nucleotide sequences (TTAGGG in humans) that cap the ends of chromosomes, protecting them from deterioration and fusion. Telomere length (TL) shortens with each cell division, and when TL reaches a critical threshold, cells enter senescence or undergo programmed cell death (apoptosis).
Telomere shortening has been implicated in aging and age-related diseases, including cardiovascular disease, cancer, and dementia.
Sex differences in telomere length
Women generally have longer telomeres than men, with a slower rate of telomere shortening with age.
A study published in the Journal of the American Medical Association (JAMA) found that women had longer telomeres than men across all age groups.
This sex difference in TL is thought to contribute to the female advantage in lifespan, with women living approximately 5–7 years longer than men on average.
Mechanisms underlying sex differences in telomere length
- Estrogen: Estrogen has been shown to increase telomerase activity, the enzyme responsible for maintaining TL, in human cells. Estrogen also has antioxidant properties, reducing oxidative stress and inflammation, which contribute to telomere shortening.
- Genetic Factors: Genetic variants in telomere-related genes, such as TERT (telomerase reverse transcriptase), have been associated with TL and lifespan. A study published in Nature found that genetic variants in TERT were associated with TL and risk of age-related diseases.
- Lifestyle Factors: Lifestyle factors, such as smoking, physical activity, and diet, can influence TL, with women generally exhibiting healthier lifestyle habits.
Telomere shortening and age-related diseases
Telomere shortening has been implicated in various age-related diseases, including:
- Cardiovascular Disease: Short TL has been associated with increased risk of cardiovascular disease, including myocardial infarction and stroke.
- Cancer: Telomere shortening is a hallmark of cancer, with cancer cells often exhibiting critically short TL.
- Dementia: Short TL has been associated with increased risk of dementia, including Alzheimer’s disease.
Sex differences in telomere shortening and age-related diseases
Women tend to have a slower rate of telomere shortening with age, which may contribute to their lower risk of age-related diseases.
A study published in the Journal of the American Geriatrics Society found that women had a slower rate of telomere shortening and lower risk of age-related diseases compared to men.
Clinical implications
- Telomere Length as a Biomarker: TL has been proposed as a biomarker for aging and age-related diseases, with potential applications in clinical practice.
- Telomere-Targeted Therapies: Therapies aimed at maintaining or increasing TL, such as telomerase activators, are being explored for the treatment of age-related diseases.
Conclusion
Telomeres play a critical role in regulating cellular aging, with sex differences in TL contributing to the female advantage in lifespan. Understanding the mechanisms underlying these differences is essential for developing effective prevention and treatment strategies for age-related diseases.
Let’s dive deeper into the topic of telomeres and their role in aging.
What are telomeres?
Telomeres are repetitive DNA sequences (TTAGGG in humans) that cap the ends of chromosomes, protecting them from deterioration and fusion. Think of them like the plastic tips on shoelaces, preventing the chromosomes from unraveling.
How do telomeres affect aging?
- Telomere Shortening: Each time a cell divides, its telomeres shorten. When telomeres become too short, the cell can no longer divide and becomes senescent or undergoes apoptosis (programmed cell death).
- Aging and Telomeres: Telomere shortening is associated with aging and age-related diseases, such as cardiovascular disease, cancer, and dementia.
Sex differences in telomere length
- Women have longer telomeres: Women generally have longer telomeres than men, which may contribute to their longer lifespan.
- Estrogen’s role: Estrogen has been shown to increase telomerase activity, the enzyme responsible for maintaining telomere length, which may explain why women have longer telomeres.
Factors influencing Telomere length
- Genetics: Genetic variants in telomere-related genes can affect telomere length.
- Lifestyle: Factors like smoking, physical activity, and diet can influence telomere length.
- Stress: Chronic stress can lead to telomere shortening.
Telomeres and age-related diseases
- Cardiovascular Disease: Short telomeres are associated with increased risk of cardiovascular disease.
- Cancer: Telomere shortening is a hallmark of cancer.
- Dementia: Short telomeres are associated with increased risk of dementia.
Potential Applications
- Biomarker for aging: Telomere length could serve as a biomarker for aging and age-related diseases.
- Telomere-Targeted Therapies: Therapies aimed at maintaining or increasing telomere length are being explored for age-related diseases.
BY ROBERT EKOW GRIMMOND THOMPSON
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Conflict at work is more common than you might think. According to 2022 research by The Myers-Briggs Company, more than a third of the workforce reports dealing with conflict often, very often, or all the time in the workplace. The same report found that managers spend an average of four hours per week dealing with conflict, and nearly 25 per cent of people think their managers handle conflict poorly or very poorly.
Addressing a dispute might feel tense or awkward, but resolving the conflict is typically well worth it in the long run. Whether you’re trying to mediate conflict between colleagues or are directly involved, here are seven steps you can take to manage workplace conflict.
1. Don’t put it off
Facing conflict head-on is hard. However, waiting too long to address it can negatively impact your emotional well-being, focus, and the entire office environment. If you’re feeling angry, letting that emotion fester can also escalate it over time. This can make you less responsive to other points of view and make it harder to resolve the issue.
The sooner you can address the conflict, the better it will be for you, the person you disagree with, and your entire team.
2. Learn all you can about the problem
It’s important to determine the type of conflict you’re dealing with. Begin by considering the cause of the conflict. For example, ask yourself whether someone said something that upset you or if you have emotions of anger and resentment that stemmed from something that happened.
Then try to identify if it’s a task, relationship, value, or team conflict. Once you know what type of conflict it is, you can work to resolve it with specific tactics for that situation.
If you skip this step, you may waste time or escalate the situation further by trying to address issues irrelevant to the real conflict.
3. Actively listen
Listen attentively when people share their side of the story. Active listening is one of the most valuable professional skills you can possess. This type of listening involves not only hearing what the other person is saying but also listening to understand their point of view.
No matter your role in conflict, it’s easy to begin sharing your opinion with little regard for the other people involved. However, it’s important to learn about all sides of a disagreement to make well-informed decisions before drawing conclusions.
To reach a resolution, you must step back and prioritize listening over talking. Ultimately, that will encourage the other person to do the same when it’s your turn to speak. –source: betterup.com
Today, I focus on the Temple Of Praise Ministries International (TOP Church) in Helsinki, as I continue my description of personalities or institutions and their accomplishments as members of the Ghanaian Diaspora in Finland.
The TOP Church in Finland has seen significant strides and accomplishments that must be made known to the public. 
Some history
The Church was established in Finland in September 2016. Since its inception, it has steadily grown both spiritually and numerically, by the grace of God, as disclosed to me by Mr Matthew Anini Twumasi, the Presiding Elder of TOP’s branch in Finland. The TOP Church has other branches across Africa, Europe, and America.
The Church in Finland was founded with a vision to create a welcoming and dynamic community where people could experience God’s love and grace (see, www.topchurchfinland.org). According to Presiding Elder Matthew, the TOP Church operates within a unique environment where Christianity coexists with what is seen as a largely secular society.
Despite this, he submits, there are significant opportunities for outreach, unity, and demonstrating the love of Christ through service and community engagement.
Activities
Church services at the TOP Church are typically held on Sundays for the main worship. In addition, there are mid-week prayer sessions, Saturday prayer services, and a half-night service held on the last Friday of every month. “We also organise quarterly programs”, Elder Matthew added.
His impression of the Church so far has been positive. “It is a vibrant and welcoming community where members are committed to worship, fellowship, and supporting one another in faith”, he stated.
In sum, Elder Matthew said the Church continues to grow by God’s grace. “We remain hopeful and committed to spreading the Gospel, strengthening the faith of our members, and making a positive impact in society”, he continued.
Achievements
The TOP Church has a number of achievements and achievements. Some of the strengths include strong community bonds, cultural diversity, and deep commitment to spiritual growth.
I also remember that during the COVID-19 period, I heard that the TOP Church was one such bodies that hugely supported its members and others to cope with the situation.
According to Elder Matthew, the challenges facing the church include “adapting to cultural differences, engaging the younger generation, expanding outreach in a secular society, and securing a permanent place of worship”.
Role in the Ghanaian community in Finland
The TOP Church plays a prominent role as a religious group that serves Ghanaian migrants and others in the Finnish society.
Thus, the TOP Church is a religious body for Ghanaian migrants in Finland and other nationalities who want to worship with them for diversity and better intercultural and multicultural understanding.
The Church also has mechanisms in place to support its members who are bereaved as a way to commiserate with them in times of death and funerals.
The Ghanaian community has played a vital role in the growth of the Church. Their strong sense of fellowship, dedication to worship, and active participation have helped build a solid foundation and attract others to the ministry, according to Elder Matthew.
Integration
By its activities, the TOP Church is helping to ensure integration of its members well into the Finish society.
This is important since social interaction and citizens’ well-being are an important part of the integration process.
The role of migrant associations and groups such as TOP Church acting as bridge-builders for the integration and inclusion of migrants through participation in the decision making process and by acting as a representative voice is highly appreciated in Finland. Thank you!
GHANA MATTERS column appears fortnightly. Written in simple, layman’s terms, it concentrates on matters about Ghana and beyond. It focuses on everyday life issues relating to the social, cultural, economic, religious, political, health, sports, youth, gender, etc. It strives to remind us all that Ghana comes first. The column also takes a candid look at the meanings and repercussions of our actions, especially those things we take for granted or even ignore. There are key Ghanaian values we should uphold rather than disregard with impunity. We should not overlook the obvious. We need to search for the hidden or deeply embedded values and try to project them.
With Dr Perpetual Crentsil
