COVID-19 vaccination does not affect the chances of conceiving a child, according to a study of more than 2,000 couples that was funded by the National Institutes of Health.
Changes in scores of genes contribute to autism risk — Newfound genetic differences provide many hints at causes – Small differences in as many as a thousand genes contribute to risk for autism or autism spectrum disorder (ASD). This new study examined data on several types of rare, genetic differences in more than 14,000 DNA samples from parents, affected children, and unrelated individuals.
New hormonal gel combination shows promise as reversible birth control for men – Male hormonal contraceptives applied daily to the skin reduce sperm production, finds a new study. Very low sperm counts resulted for about 89 percent of men using a new combination of hormones, the researchers reported.
Mutations in 3 genes linked to autism spectrum disorders – Mutations in three new genes have been linked to autism, according to new studies including one with investigators at Mount Sinai School of Medicine. All three studies include lead investigators of the Autism Sequencing Consortium (ASC).
Study examines relationship between type of rice consumption and diabetes risk – Consuming more white rice appears to be associated with a higher risk for developing type 2 diabetes, whereas consuming more brown rice may be associated with a lower risk for the disease, revealed by researchers.
Worldwide report shows increase in assisted reproduction: 250,000 babies (approximately) born in 1 year – Assisted reproductive technology (ART) is responsible for an estimated 219,000 to 246,000 babies born each year worldwide according to an international study.
2 studies: The first finds twins born after fertility treatment have a higher risk of problems. A second study study finds reassuring evidence on the outcome of children born after embryo freezing. – Twins born as a result of assisted reproductive technology (ART) are more likely to be admitted to neonatal intensive care and to be hospitalised in their first three years of life than spontaneously conceived twins, according to new research in Europe’s leading reproductive medicine journal Human Reproduction.
Children of older fathers perform less well in intelligence tests during infancy – Children of older fathers perform less well in a range of cognitive tests during infancy and early childhood, according to a study published this week in the open-access journal PLoS Medicine.
Marijuana use linked to increased risk of testicular cancer. Risk appears to be elevated particularly among frequent and/or long-term users of marijuana. – Frequent and/or long-term marijuana use may significantly increase a man’s risk of developing the most aggressive type of testicular cancer, according to a study by researchers at Fred Hutchinson Cancer Research Center.