Male subfertility helped by antioxidants says research

Antioxidants for male subfertility. Background; Between 30% to 80% of male subfertility cases are considered to be due to the damaging effects of oxidative stress on sperm. Oral supplementation with antioxidants may improve sperm quality by reducing oxidative stress. Objectives; This Cochrane review aimed to evaluate the effect of oral supplementation with antioxidants for male partners of couples undergoing assisted reproduction techniques (ART). Search strategy; We searched the Cochrane Menstrual Disorders and Subfertility Group Register, CENTRAL (The Cochrane Library), MEDLINE, EMBASE, CINAHL, PsycINFO and AMED databases (from their inception until Febuary 2010), trial registers, sources of unpublished literature, reference lists and we asked experts in the field. Selection criteria: We included randomised controlled trials comparing any type or dose of antioxidant supplement (single or combined) taken by the male partner of a couple seeking fertility assistance with placebo, no

treatment or another antioxidant. The outcomes were live birth, pregnancy, miscarriage, stillbirth, sperm DNA damage, sperm motility, sperm concentration and adverse effects.Data collection and analysis; Two review authors independently assessed studies for inclusion and trial quality, and extracted data. Main results; We included 34 trials with 2876 couples in total. Live birth: three trials reported live birth. Men taking oral antioxidants had an associated statistically significant increase in live birth rate (pooled odds ratio (OR) 4.85, 95% CI 1.92 to 12.24; P = 0.0008, I2 = 0%) when compared with the men taking the control. This result was based on 20 live births from a total of 214 couples in only three studies.Pregnancy rate: there were 96 pregnancies in 15 trials including 964 couples. Antioxidant use was associated with a statistically significant increased pregnancy rate compared to control (pooled OR 4.18, 95% CI 2.65 to 6.59; P < 0.00001, I2 = 0%). Side effects: no studies reported evidence of harmful side effects of the antioxidant therapy used. Authors’ conclusions; The evidence suggests that antioxidant supplementation in subfertile males may improve the outcomes of live birth and pregnancy rate for subfertile couples undergoing ART cycles. Further head to head comparisons are necessary to identify the superiority of one antioxidant over another.Antioxidants for male subfertility Oxidative stress may cause sperm cell damage. This damage can be reduced by the body’s own natural antioxidant defences. Antioxidants can be part of our diet and taken as a supplement. It is believed that in many cases of unexplained subfertility, and also in instances where there may be a sperm-related problem, taking an oral antioxidant supplement may increase a couple’s chance of conceiving when undergoing fertility treatment. This review identified 34 randomised controlled trials involving 2876 couples. Pooled

findings support increases in live births and pregnancy rates with the use of antioxidants by the male partner. Further work is recommended to confirm these findings. – Obstetrics and Gynaecology, University of Auckland, Auckland, New Zealand. Clinical Research and Development, Queensland Fertility Group, Woolloongabba, Australia. Reproductive Medicine, Flinders Reproductive Medicine, Bedford Park, Australia. School of Women’s and Infants Health, The University of Western Australia, King Edward Memorial Hospital and Fertility Specialists of Western Australia, Subiaco, Australia. Authors: Marian G Showell, Julie Brown, Anusch Yazdani, Marcin T Stankiewicz, Roger J Hart. Contact address: Marian G Showell News from: The Cochrane Library  Cochrane Menstrual Disorders and Subfertility Group & Obstetrics and Gynaecology, University of Auckland New Zealand. ~  Male infertility refers to the inability of a male to achieve a pregnancy in a fertile female. In humans it accounts for 40-50% of infertility. Male infertility is commonly due to deficiencies in the semen, and semen quality is used as a surrogate measure of male fecundity. The diagnosis of infertility begins with a medical history and physical exam by a physician, preferably a specialist with experience or who specializes in male infertility. Typically two separate semen analyses will be required. The provider may order blood tests to look for hormone imbalances, medical conditions, or genetic issues.The cornerstone of the male partner evaluation is the history. It should note the duration of infertility, earlier pregnancies with present or past partners, and whether there was previous difficulty with conception.The history should include prior testicular or penile insults (torsion,

cryptorchidism, trauma), infections (mumps orchitis, epididymitis), environmental factors (excessive heat, radiation, medications, and drug use (anabolic steroids, alcohol, smoking).Sexual habits, frequency and timing of intercourse, use of lubricants, and each partner’s previous fertility experiences are important. Loss of libido and headaches or visual disturbances may indicate a pituitary tumor.The past medical or surgical history may reveal thyroid or liver disease (abnormalities of spermatogenesis), diabetic neuropathy (retrograde ejaculation), radical pelvic or retroperitoneal surgery (absent seminal emission secondary to sympathetic nerve injury), or hernia repair (damage to the vas deferens or testicular blood supply). A family history may reveal genetic problems. A complete examination of the infertile male is important to identify general health issues associated with infertility. For example, the patient should be adequately virilized; signs of decreased body hair or gynecomastia may suggest androgen deficiency. Usually, the patient disrobes completely and puts on a gown. The physician will perform a thorough examination of the penis, scrotum, testicles, anus and rectum. The scrotal contents should be carefully palpated with the patient standing. As it is often psychologically and physically uncomfortable for men to be examined, one helpful hint is to make the examination as efficient and as matter of fact as possible.The peritesticular area should also be examined. Irregularities of the epididymis, located posterior-lateral to the testis, include induration, tenderness, or cysts. GoodNews International


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