The earliest sperm bank of mankind was built for soldiers participating in the war.

The Human Sperm Bank of Xiangya Medical College of Central South University recently announced that it will accept the requirement of sperm self-storage for healthy men aged 25-45 from now on, in order to alleviate people's reproductive worries caused by environment and diseases and provide possible protection for unmarried men who will be engaged in special work such as radiation in the future.

Xiangya Medical College of Central South University is the first human sperm bank in China, which was founded by Professor Lu Guang Wang Jiaxiu in 198 1. Professor Lu is the daughter of Professor Lu Huilin, a famous geneticist in China, the founder of medical genetics and the first human reproductive engineering laboratory in China.

Professor Lu said that the original intention of establishing human sperm bank was to provide prenatal and postnatal care for family planning and treat male infertility. However, as early as seven years ago, the sperm bank began to provide self-storage sperm services at the request of individual people of insight. Driven by the public demand, the Reproductive Genetics Hospital of Xiangya Medical College realized that opening the self-storage sperm service to the society can effectively alleviate the worries of many people. In clinical practice, they found that some people are in the peak period of childbearing, but they can only postpone childbearing for various reasons. When they want to have children, they find that the quality of sperm drops or even azoospermia.

Professor Lu believes that the self-storage sperm service is still in line with the goal of prenatal and postnatal care. She said that men's reproductive anxiety has a profound social background, and related research at home and abroad shows that the quantity and quality of male sperm in many countries, especially in developed industrial countries, are declining. This situation is closely related to environmental pollution, global warming and delayed childbearing age. Personally, I think many factors, such as working and living environment, diseases, accidental injuries, etc. , may cause unpredictable changes in fertility. Self-storage sperm service is reserved for men.

Xiangya Medical College of Central South University currently has 50,000 semen storage capacity. Since 65,438+0,999,65,438+0,000 tubes of human semen have been frozen. After thawing and resuscitation, more than 6,600 tubes have been used for artificial insemination and in vitro insemination. The frozen recovery rate is between 60% and 95%, reaching the advanced level in the world. Up to now, the semen used in more than 2,000 test-tube babies has been frozen 10 years. Professor Lu explained that sperm is one of the most frost-resistant cells in human body, and it can still maintain the vitality of 196 degrees Celsius in liquid nitrogen for 10-20 years.

According to reports, in April 2003, a human sperm bank was also established in Guangdong Province, and the first self-storage sperm service was launched in July of that year. (Reporter Liu)

Xinhuanet June 2004 5438+1October 65438+May