Featured Research

from universities, journals, and other organizations

Women's immune systems remain younger for longer

Date:
May 15, 2013
Source:
BioMed Central Limited
Summary:
Women’s immune systems age more slowly than men's, new research suggests. The slower decline in a woman’s immune system may contribute to women living longer than men.

Women's immune systems age more slowly than men's, suggests research in BioMed Central's open access journal Immunity & Ageing. The slower decline in a woman's immune system may contribute to women living longer than men.

Researchers looked at the blood of healthy volunteers in Japan, ranging in age between 20 and 90 years old; in both sexes the total number of white blood cells per person decreased with age. The number of neutrophils decreased for both sexes and lymphocytes decreased in men and increased in women. Younger men generally have higher levels of lymphocytes than similarly aged women, so as aging happens, the number of lymphocytes becomes comparable.

Looking in more detail it became apparent that the rate in decline in T cells and B cells was slower for women than men. Both CD4+ T cells and NK cells increased with age, and the rate of increase was higher in women than men. Similarly an age-related decline in IL-6 and IL-10 was worse in men. There was also a age-dependent decrease in red blood cells for men but not women.

This difference in the aging of immune systems between men and women is one of many processes which alter as we grow older. Prof Katsuiku Hirokawa from the Tokyo Medical & Dental University Open Laboratory explained, "The process of aging is different for men and women for many reasons. Women have more oestrogen than men which seems to protect them from cardiovascular disease until menopause. Sex hormones also affect the immune system, especially certain types of lymphocytes. Because people age at different rates a person's immunological parameters could be used to provide an indication of their true biological age."


Story Source:

The above story is based on materials provided by BioMed Central Limited. Note: Materials may be edited for content and length.


Journal Reference:

  1. Katsuiku Hirokawa, Masanori Utsuyama, Yoshio Hayashi, Masanobu Kitagawa, Takashi Makinodan and Tamas Fulop. Slower immune system aging in women versus men in the Japanese population. Immunity & Ageing, 2013; 10: 19

Cite This Page:

BioMed Central Limited. "Women's immune systems remain younger for longer." ScienceDaily. ScienceDaily, 15 May 2013. <www.sciencedaily.com/releases/2013/05/130514213056.htm>.
BioMed Central Limited. (2013, May 15). Women's immune systems remain younger for longer. ScienceDaily. Retrieved September 29, 2014 from www.sciencedaily.com/releases/2013/05/130514213056.htm
BioMed Central Limited. "Women's immune systems remain younger for longer." ScienceDaily. www.sciencedaily.com/releases/2013/05/130514213056.htm (accessed September 29, 2014).

Share This



More Health & Medicine News

Monday, September 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How 'Yes Means Yes' Defines Sexual Assault

How 'Yes Means Yes' Defines Sexual Assault

Newsy (Sep. 29, 2014) Aimed at reducing sexual assaults on college campuses, California has adopted a new law changing the standard of consent for sexual activity. Video provided by Newsy
Powered by NewsLook.com
Scientists May Have Found An Early Sign Of Pancreatic Cancer

Scientists May Have Found An Early Sign Of Pancreatic Cancer

Newsy (Sep. 29, 2014) Researchers looked at 1,500 blood samples and determined people who developed pancreatic cancer had more branched chain amino acids. Video provided by Newsy
Powered by NewsLook.com
Why Is Big Tobacco Voluntarily Warning You About E-Cigs?

Why Is Big Tobacco Voluntarily Warning You About E-Cigs?

Newsy (Sep. 29, 2014) Big tobacco companies are voluntarily printing health warnings on their e-cigarette packages — a move some are calling part of a PR strategy. Video provided by Newsy
Powered by NewsLook.com
Why Pediatricians Endorse IUDs, Implants For Teens

Why Pediatricians Endorse IUDs, Implants For Teens

Newsy (Sep. 29, 2014) New recommendations from the American Academy of Pediatrics point to intrauterine devices and implants as good forms of birth control for teens. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins