نتایج جستجو برای: fertility and infertility
تعداد نتایج: 16836143 فیلتر نتایج به سال:
Chemotherapy and radiotherapy often result in reduced fertility in cancer patients. With increasing survival rates, fertility is an important quality-of-life concern for many young cancer patients. Around 70-75% of young cancer survivors are interested in parenthood but the numbers of patients who access fertility preservation techniques prior to treatment are significantly lower. Moreover, des...
OBJECTIVE To compare sperm characteristics among: patients undergoing infertility evaluation, patients with male factor infertility (MFI), healthy sperm donors, and men with proven fertility; to examine the overlap of sperm characteristics in all four of these groups; and to identify good discriminators of fertility versus infertility among sperm characteristics. DESIGN Retrospective study. ...
Tubal factor infertility (TFI) represents 36% of female infertility and genital infection by Chlamydia trachomatis (C. trachomatis) is a major cause. Although TFI is associated with host inflammatory responses to bacterial components, the molecular pathogenesis of Chlamydia-induced infertility remains poorly understood. We investigated the hypothesis that activation of specific cysteine proteas...
BACKGROUND Gender, possibly due to the influence of gonadal hormones, is presumed to play a role in the pathogenesis of multiple sclerosis (MS), but no studies have evaluated whether male infertility is associated with MS. OBJECTIVE To study the association between male factor infertility and prevalent as well as incident MS. METHOD Our cohort was established by linkage of the Danish Nation...
Purpose Oncofertility, an emerging discipline at the intersection of cancer and fertility, strives to give cancer patients options when they are confronting potential infertility as a consequence of cancer treatment. Fertility preservation decisions must be made before treatment begins, adding stress to the decision-making process. Methods Healthcare providers need to be aware of the intricacie...
The gene knockout technology has revolutionized the fertility/infertility field. It has revealed several essential previously undiscovered molecules, new insights and novel mechanisms involved in steps of the fertility cascade in females. Using database and literature search, knockouts of at least 83 genes were discovered that demonstrated an effect on fertility of female mice. These effects ra...
The identification of gene mutations causing infertility in humans remains noticeably deficient at present. Although most males and females with infertility display normal pubertal development, nearly all of the gene mutations in humans have been characterised in people with deficient puberty and subsequent infertility. Gene mutations are arbitrarily categorised into four different compartments...
BACKGROUND Many children treated for cancer are at risk of infertility, but for girls and prepubertal boys, all fertility preservation techniques remain experimental. We have assessed UK practice relating to information provision about the effects of cancer treatment on fertility and options for fertility preservation. METHODS Paediatric oncologists prospectively completed a data form for eac...
Breeding for fine black fur has generated a colony of mink wherein 20-30% of the males are infertile. Two clinical groups are distinguishable: one being infertile from the start (primary infertility), and the other infertile after one or more years of fertility (secondary fertility). Although the etiology of primary infertility is unknown, the available data indicate that secondary infertility ...
infertility is believed to be part of the various medical problems that has increased up to 50% since 1955 in the world and 10-15% of couples are already suffering from it. development of industrialization and urbanization in human societies have dramatically changed the human life style and led gradually to the increase of various environmental risk factors. humans are exposed to polluted air,...
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