Postmating, prezygotic phenotypes are a common mechanism of reproductive isolation. Here, we describe the dynamics of a noncompetitive gametic isolation phenotype (namely, the ability of a male to induce a female to lay eggs) in a group of recently diverged crickets that are primarily isolated from each other by this phenotype. We not only show that heterospecific males are less able to induce ...

1Department of Reproductive Imaging, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran 2Department of Epidemiology and Reproductive Health, Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran *Corresponding author: Firoozeh Ahmadi, Department of Reproductive Imaging, Reproductive B...

Assisted reproductive techniques have been a great blessing for the infertile couple. Some have questioned their use, citing the unknown risk to the unborn child. The emergence of one of the newest techniques, intracytoplasmic sperm injection, has again sparked debate on the ethics of assisted reproductive techniques. Those who oppose intracytoplasmic sperm injections use are primarily concerne...

There is substantial scientific and public concern about the potential effects of occupational and environmental toxicants on reproductive health. These effects include impaired functioning of the reproductive systems of men and women as well as a broad spectrum of developmental problems expressed in offspring. Research on reproduction and development is among the most complex undertakings in b...

Little research has been published on the occupational and environmental hazards affecting people of color. Even less is known about the hazards that affect women of color. Although women of color have always been aggressive participants in the work force, their labor activity has increased dramatically over the last decade. Current job placement patterns suggest that women of color are concent...

HE process of transformation of races into species is in general slow. The T only approach to its study is through examination of its successive stages represented on our time level in different species and species groups. Nor is the process uniform in all organisms. Even though the essential feature of speciation in sexual cross-fertilizing forms is the development of reproductive isolation be...

A growing body of U.S.-based research demonstrates that reproductive coercion is an important consideration regarding the negative health impacts of intimate partner violence (IPV). However, less work on IPV and reproductive coercion has been done in West African settings. Cross-sectional data of 981 women who participated in the baseline survey of a randomized-controlled trial in rural, Côte d...

Heterotopic pregnancy is defined as intrauterine and extrauterine pregnancy entity coexisting simultaneously and which has been on the rise in recent years with the development of assisted reproductive techniques. We report 4 cases of heterotopic pregnancy, three of them resulting from assisted reproductive technologies and a spontaneous case. We also describe the methods used for diagnosis, th...

diminished ovarian reserve (dor) significantly decreases the success rate of the assisted reproductive technique (art). in this study, we assessed the effect of melatonin on the art outcomes in women with dor. a double-blinded, randomized, clinical trial was performed on 80 women with dor as a pilot study in shiraz, between 2014 and 2015. dor was defined as the presence of 2 of the following 3 ...

background: spontaneous occurrences of multifetal pregnancies always have been a medical problem. the risks of perinatal morbidity and mortality and maternal morbidity increase with enhancement of the number of fetuses. in our prospective experimental study, the outcome of twin pregnancy after assisted reproductive technologies (art) with and without multifetal pregnancy reduction (mfpr) is com...