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Turkey Medicals member and JCI hospital department Urology Specialist Prof. Dr. said, Selenium is found in most products intended for supplementation recommended for men who intend to have children. But the excess of selenium has just as important effects as its deficiency. Therefore, caution should also be exercised in its use.

Selenium is actually not produced in the body, it needs to be taken with nutrients from the outside. After it is taken, it is absorbed from the intestines, enters the blood and combines with proteins to be transported to the tissues. It plays a role in most functions of the body, especially the kidneys, liver, spleen, testes and pancreas. Its most important task is protection from oxidative stress. Because a high amount of selenium has been found in the mitochondria, which are the energy source of cells. On the other hand, it has also been shown to activate cells in the immune system that fight viruses and cancer. Selenium is also needed for the normal functioning of the thyroid gland.

The role of selenium in the healthy functioning of reproductive functions in men has been shown in scientific research. Glutathione protein is required for the proper functioning of the genetic mechanism in the nuclei of cells. In addition, 10% of glutathione is found in the mitochondria. Mitochondria, on the other hand, are the cell’s battery and provide constant energy support. Selenium also helps in the production of glutathione. Selenium is almost completely found in the testicle due to the enzyme glutathione peroxidase. It has been shown that this enzyme works actively in the spermatid stage when spermatozoa are maturing, and in mature tailed spermatozoa it exists in inactive form in the mitochondrial membrane. The enzyme glutathione peroxidase is a powerful antioxidant. It plays an important role in the prevention of oxidative stress by deactivating a molecule called hydrogen peroxide, which is mainly responsible for DNA damage. All this also shows that we need selenium support a lot for sperm maturation and protection from DNA damage.

A low level of selenium in the semen can lead to a disruption in the movement and shape of spermatozoa, as well as a decrease in their number. Selenium levels were found to be significantly lower in men with azoospermia or oligozoospermia. Similarly, studies have shown that selenium supplementation reduces this in men with high DNA damage.

But measuring selenium levels in practice will not be easy. Therefore, its use remains empirical. However, if increased oxidative stress has been detected in a man and it has again been shown by tests that it is accompanied by a deterioration in mitochondrial function, then selenium supplementation can be started from the outside. In some severe selenium deficiencies, symptoms such as muscle weakness, fatigue and drowsiness, memory loss, cholesterol elevation, thinning of the nails or weakening of the immune system may also attract attention. In such cases, the measurement of selenium in the blood can give some degree of information.

Grains, seafood, meat, liver, molasses, milk and milk products, eggs, butter, mushrooms, onions, cabbage, leafy vegetables such as broccoli and chicken Green selenium-rich foods. Unfortunately, the risk of selenium loss in refined foods has been a serious threat in recent years. In some countries, such as Finland, Estonia, selenium deficiency is widespread and it has even been proposed to supplement it from the outside. But taking too much selenium can also give symptoms of the nervous system, such as nausea, vomiting, muscle aches and tingling, muscle, chills. If it is continued for a long time, it is possible that it will lead to the development of diabetes or other medical conditions, or psychological disorders.

As a result, selenium is an element that must be taken for sperm health. We can get enough nutrients in our daily lives. However, expectant father men who have an irregular and unhealthy diet may need external supplements. You can do this by regulating your eating habits, as well as taking it directly as a medicine. Especially in those who have a low risk of movement, oxidative stress and DNA damage in sperm examinations, the need for this may be greater.


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President of Organ Transplant Center at MedicalPark Hospital Antalya

Turkey's world-renowned organ transplant specialist. Dr. Demirbaş has 104 international publications and 102 national publications.

Physician's Resume:

Born on August 7, 1963 in Çorum, Prof. Dr. Alper Demirbaş has been continuing his work as the President of MedicalPark Antalya Hospital Organ Transplantation Center since 2008.

Prof. who performed the first tissue incompatible kidney transplant in Turkey, the first blood type incompatible kidney transplant, the first kidney-pancreas transplant program and the first cadaveric donor and live donor liver transplant in Antalya. Dr. As of August 2016, Alper Demirbaş has performed 4900 kidney transplants, 500 liver transplants and 95 pancreas transplants.

In addition to being the chairman of 6 national congresses, he has also been an invited speaker at 12 international and 65 national scientific congresses. Dr. Alper Demirbaş was married and the father of 1 girl and 1 boy.


Eczacibasi Medical Award of 2002, Akdeniz University Service Award of 2005, Izder Medical Man of the Year Award of 2006, BÖHAK Medical Man of the Year Award of 2007, Sabah Mediterranean Newspaper Scientist of the Year Award of 2007, ANTIKAD Scientist of the Year Award of 2009, Social Ethics Association Award of 2010, Işık University Medical Man of the Year Award of 2015, VTV Antalya's Brand Value Award of 2015.


Doctor of Medicine Degree Hacettepe University Faculty of Medicine Ankara, General Surgeon Ministry of Health Turkey EKFMG (0-477-343-8), University of Miami School of Medicine Member of Multiple Organ Transplant, ASTS Multiorgan Transplant Scholarship. Lecturer at Kyoto University. Lecturer at University of Essen, Research assistant at the University of Cambridge .

Professional Members:

American Society of Transplant Surgeons, American Transplantation Society Nominated, Middle East and Southern Africa Council Transplantation Society 2007, International Liver Transplantation Association, Turkish Transplantation Association, Turkish Society of Surgery, Turkish Hepatobiliary Surgery Association.


Our website contents consist of articles approved by our Web and Medical Editorial Board with the contributions of our physicians. Our contents are prepared only for informational purposes for public benefit. Be sure to consult your doctor for diagnosis and treatment.
Medically Reviewed by Professor Doctor Alper Demirbaş
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