Background Chromomycin A3 (CMA3) staining has been used to assess protamine deficiency. The aim of this study was to determine credibility of CMA3 along with semen parameters for assessment of fertility potential. MaterialsAndMethods Semen analysis and CMA3 staining were carried out on 234 fertile and 178 subfertile individuals. Semen analysis was assessed according to WHO criteria. Protamine d...

With 21,650 new cases every year, ovarian cancer is currently the fifth leading cause of death from all cancers in women in the USA [1]. Among gynecological cancers, it is the leading cause of death, typically presenting with stage III/IV disease. At present, 12.2% of ovarian cancers occur in women younger than 40 years of age [2]. Most of these cases are tumors of low malignant potential, mali...

Despite implications for both humans and the environment, a scant body of research examines fertility in forest frontiers. This study examines the fertility– environment association using empirical data from Ecuadorian Amazon between 1980 and 1999. Fertility dramatically declined during this period, and our empirical models suggest that households’ relationship to land partially explains this d...

It is estimated that in 2010, 1 in every 250 adults will be a childhood cancer survivor. Today, oncological surgery, radiotherapy and chemotherapy achieve relatively high rates of remission and long-term survival, yet are often detrimental to fertility. Quality of life is increasingly important to long-term survivors of cancer, and one of the major quality-of-life issues is the ability to produ...

This paper explains the decline in total fertility rate (TFR) in China by investigating the quantitative effect of social insurance on peoplesąŕ fertility choice when investment in children is risky. The price and income effects are heterogeneous: low-income people tend to raise more children due to the reinforcing income and price effects, whereas for rich families the income effect dominates ...

This paper outlines a 25 yr research strategy to better understand how proteins in male and female reproductive fluids influence fertility. Extensive fertility data available from artificial insemination cooperatives were used to identify individual dairy bulls with phenotypes of above and below average fertility. We determined whether the protein composition of reproductive fluids from these b...

In 1979, the Chinese government introduced the One-child Policy for the purpose of controlling population growth. Thirty years later, the fertility rate in China has declined to a very low level and one-child families have become the norm. At the same time, the consequences of low fertility rates have emerged. In 2015, the government announced a new policy that encouraged couples to have two ch...

This four-document series was created to improve education and communication concerning fertility preservation in adolescent and young adult Canadians with a new diagnosis of cancer. This article describes the services currently available in Canada, points out potential challenges, and outlines strategies to help maximize and facilitate fertility preservation in the new young cancer patient.

This article aims to strengthen the research methodology for studies of fertility preferences. Knowledge of personal fertility ideals is important both for demographers and policy makers, but the measurement techniques currently employed are not very refined. We suggest that the information provided by asking people about their personal ideal number of offspring can be improved in quality when ...