Is the fertility treatment itself a risk factor for early pregnancy loss?

Genetic risk factor for unexplained recurrent early pregnancy loss.

Neonatal antibiotic treatment is a risk factor for early wheezing.

OBJECTIVE The use of antibiotics in infancy and subsequent changes in the intestinal bacterial flora have been discussed as risk factors for the development of asthma. However, it has been difficult to exclude the possibility that antibiotics have been given in early episodes of wheezing. As a result, there has been a risk of reverse causation. To minimize the risk of reverse causation, we have...

Is infertility a risk factor for impaired male fertility?

BACKGROUND Previous research has suggested an interaction between distress and male fertility. The present longitudinal study sought to deliver evidence for a negative impact of distress due to infertility on sperm concentration. METHODS The sample consisted of 120 patients who twice visited an andrological clinic on their own initiative for fertility work-ups. Baseline and follow-up examinat...

Early Pregnancy and Fertility Tests

Many are the waies Authors have left for Women to know whether they be with Child or not, which happen true in many Women, but not in all .. -Nich. Culpeper' Whether a woman has become pregnant and whether she is able to become so have been urgent questions since mankind began to speculate about the future. Many are the procedures by which men and women have tried to make Nature reply. Most of ...

Is Maternal Smoking during Early Pregnancy a Risk Factor for All Low Birth Weight Infants?

BACKGROUND Low birth weight (LBW) infants do not form a homogeneous group; LBW can be caused by prematurity or poor fetal growth manifesting as small for gestational age (SGA) infants or intrauterine growth retardation. We aimed to clarify the relationship of maternal smoking with both SGA and preterm LBW infants. METHODS The study population comprised pregnant women who registered at the Kos...