background: antibiotic therapies used in treatment of many diseases have adverse effects on fertility. this review analyzes previous comparative studies that surveyed the effects of two common groups of antibiotics on male fertility. objective: to evaluate histo-pathological effects of fluoroquinolones and aminoglycosides on sperm parameters and male reproductive tissue. materials and methods: ...

an important part of male infertility of unknown etiology may be attributed to various environmental and occupational exposures to toxic substances, such as lead. the reproductive effects of lead are complex and appear to involve multiple pathways, not all of which are fully understood. it is still unclear, for example, if male reproductive issues in lead-exposed persons are mostly related to t...

background: given the paucity of data on possible testis changes in opioid dependents, we sought to compare the testis volumes between a group of opium dependents and a group of healthy controls. objective: comparison of testis volume between opium dependents and healthy controls. materials and methods: this case-control study recruited 100 men with opium dependency (cases) and 100 healthy men ...

background: the fertility experience in iran suggests that the family planning programs had an effective role in the fertility reduction. this study aimed to specify patterns of marriage in iran and especially in a northern city of iran and to investigate the association between patterns of marriage and contraceptive use before first pregnancy and current contraceptive use. methods: in this cro...

in the previous studies, the rate of primary infertility was reported differently. it seems the main reasons are related to the different methods of data collection and information analysis. therefore, introducing a precise method to determine the infertile couples and the population exposed to the risk of infertility is an important issue to study primary infertility.the proposed methodology f...

background: oral contraceptive pills effectiveness is lower in actual use than in clinical trials. the views of a group of married iranian women were sought as a step toward improving the enhanced use of contraceptive pills. methods: two focus groups of current pill users (n=13) and two focus groups of women not currently taking the pills (n=14) were held. leaders trained facilitators; themes w...

the use of quantum dots (qdots) as bright and photostable probes for long-term fluorescence imaging is gaining more interest. thus far, (pre)clinical use of qdots remains limited, which is primarily caused by the potential toxicity of qdots. most qdots consist of cd2+ ions, which are known to cause high levels of toxicity. therefore, the cytotoxic effects of cdse quantum dots on embryonic devel...

background: phytoestrogens are some plant compounds with estrogenic biological effects which are found in many nutritional sources as soybean, flaxseed and sesame. vitex agnus-castus, also called vitex, owns phytoestrogenic properties. studies have showed that phytoestrogens have different impacts on the gestation process and reproduction indices. the present study is aimed at investigating the...

reproductive abnormalities cause major losses of sheep production. abattoir materials were used todetermine the extent of reproductive wastage. reproductive tracts were collected from 524 ewes slaughtered at urmia slaughter-house in urmia, northwest of iran, during a period of 12 months. overall, 30.10% of the ewes examined were pregnant. a total of 149 (28.44%) tracts developed acquired reprod...

background people living with hiv (plhiv) are highly stigmatized and consequently hard-to-access by researchers and importantly, public health outreach in iran, possibly due to the existing socio-cultural situation in this country. the present study aimed to evaluate the sexual and reproductive health needs of plhiv in tehran, the capital of iran.   methods as a mixed-method descriptive study, ...