Fluctuating asymmetry (FA) is believed to reflect developmental stability and thus may serve as a marker of the biologic quality of individuals. To test the hypothesis that degree of FA is related to a woman’s potential fertility, we measured finger length together with levels of estradiol in saliva samples collected daily for an entire menstrual cycle in 171 Polish urban and rural women. We sh...

HIRSCH IH. Optimizing fertility potential in spinal cord injured men. Can J Urol 2012;19(5):6437. even after spinal cord injury. As the hurdle of semen retrieval has been successfully transcended in over 90% of such men, our research objectives should be directed toward the optimization of semen quality associated with neurogenic infertility. Over the past 3 decades significant therapeutic inro...

The increase in population growth rate warrants the development of additional contraceptive methods that are widely acceptable, free from side effects and less expensive. Immunocontraception, and in particular the targeting of antibodies to gamete-specific antigens implicated in sperm egg binding and fertilization, offers an attractive approach to control fertility. The development of a contrac...

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 We evaluated the relationships between proteins in cauda epididymis fluid (CEF) and fertility scores of dairy bulls. Fertility was expressed as the percentage point deviation of bull non-return rate (PD) from the average fertility of all bulls at an artificial insemination center. Number of services for each bull ranged from 1,07...

Subfertility is a major health issue worldwide, and one that is growing because of an increasing number of subfertile couples, various causes of decreased fertility, and poorly understood mechanisms. In The Lancet, three Series papers on fertility preservation discuss the eff ects of physiological and pathological factors on human fertility, and collectively show that fertility preservation is ...

The influence of previous sexual experience and subsequent differential housing on the epididymis and fertility index was studied for male Swiss albino cc mice. Among animals with previous sexual experience those having a high epididymal beta-glucuronidase activity showed a high fertility index and vice versa. The reproductive potential of animals without previous sexual experience was reduced ...

Quality of life has become a very important issue in deciding the extent of surgical procedures for patients affected with a variety of cancers. In recent years, more attention has been given to preserving organ function, cosmesis, and now reproductive function. As cancer treatment has improved survival in several neoplasias, cancer survivors are becoming more interested in preserving their fer...

Women's education has emerged as a central predictor of fertility decline, but the many ways that education affects fertility have not been subject to detailed comparative investigation. Taking an evolutionary biosocial approach, we use structural equation modelling to examine potential pathways between education and fertility including: infant/child mortality, women's participation in the labo...

Many variables of biological, ecological and cultural nature affect the biological dynamics of human populations. A religious denomination was an element of the cultural system which had an impact on the attitude towards birth control and sexuality. The aim of this paper is to show how religion shaped the fertility figures in the Catholic and Lutheran populations of historical Poland. Two metho...

The Determinants of Motherhood and Work Status: A Survey In this paper we present important empirical evidence regarding recent trends in women’s participation and fertility in European countries, and provide several interpretations of the differences across countries. Several recent analyses have considered labour supply and fertility as a joint decision and have explicitly taken into account ...