Sentences with phrase «sperm and eggs lead»

The good news is that better quality sperm and eggs lead to increased fertility, reduced risk of miscarriage and healthier babies!

Not exact matches

Their technique, which involves taking a woman's mature oocyte (egg) and fertilizing it with sperm in a petri dish to form an embryo, led to a U.K. woman's giving birth to the first «test tube baby» in 1978.

Your egg is fertilized 12 to 24 hours later if a sperm penetrates it — and this simple biological occurrence begins a series of increasingly complicated processes that leads to a new human life, if all goes well.

In the steps of sperm - egg fusion, IZUMO1 on the spermatozoon and the IZUMO1 counter-receptor on the egg, JUNO, play crucial roles in the very first step, the formation of an intercellular bridge, and deletion of either gene leads to the failure of gamete membrane fusion.

The first is working out how to make the PGCs convert to mature sperm and eggs without transplanting them back into testes or ovaries; Hayashi is trying to decipher the signals that ovaries and testes give to the PGCs that tell them to become eggs or sperm, which he could then add to artificial PGCs in culture to lead them through these stages.

What's come out in recent years are findings that experiences in an adult organism can, through epigenetic modifications in the sperm and egg cells, be passed onto subsequent generations, leading to some provocative notions.

But recent research led by Simone Immler of the University of Sheffield in England has turned up unexpected cooperation among some rodents» sperm, which latch together via hook - shaped heads in hordes of up to 100 and barrel egg - ward together, like a knot of football players rumbling toward the end zone.

The Weizmann team, led by Ph.D. students Liron Gal and Yoav Politi in Arama's group, together with former senior intern Yossi Kalifa and former Ph.D. student Liat Ravid, and with the assistance of Prof. Zvulun Elazar of the Biological Chemistry Department, found that as soon as the sperm enters the egg, the cellular vesicles — already present in the fruit fly egg — immediately attract to the sperm like a magnet.

«A reading assignment on how sperm and eggs form might then lead me to ask the class how male contraceptives might work.

When these cells were coaxed into forming sperm and used to fertilise eggs, 50 to 60 per cent of the resulting pregnancies led to live births (Science, doi.org/cbxt).

In a new Cell Reports paper, a team led by John P. Cooke, M.D., Ph.D., of the Houston Methodist Research Institute, has identified and characterized a biological factor critical to the transformation of adult somatic cells (cells that are not sperm or egg cells) into stem cells.

In gametes (eggs and sperm), chromosome mis - segregation can lead to human aneuploidies like trisomy 21 that causes Down syndrome.

Sex - specific traits that lead to the production of dimorphic gametes, sperm in males and eggs in females, are fundamental for sexual reproduction and accordingly widespread among animals.

And those led to the modern understanding that many corals reproduce only once or twice a year, in coordinated mass releases of eggs and speAnd those led to the modern understanding that many corals reproduce only once or twice a year, in coordinated mass releases of eggs and speand sperm.

Imbalanced hormone levels can lead to ovulatory disorders, poor egg and sperm quality and miscarriage.

In addition, IUDs cause inflammation in the uterus, which leads to the release of fluids that impair the function of both eggs and sperm.