In nature, the zona pellucida, as this shell is known, protects the egg as it travels down the fallopian tube on its way to the uterus; it also regulates fertilization so that only a single sperm ...

IVF or ICSI and opening the zona pellucida (embryo shell) to help the embryo hatch and increase its chances of successful implantation into the lining of the uterus. #25 on Jacques Cohen's list.

Recent studies in mice suggest that how the egg cells hold onto and get rid of their proteins may be key to this survival. Although most proteins are renewed every few days, two studies show that some ...

enclosed all the while by a membrane inherited from the oocyte (the zona pellucida). Together, these cells and membrane function as parts of a whole that regularly and predictably develops by an ...

Zona pellucida. Features & Antifertility Effects of Infertility-associated Sperm Antigens Sperm antigens Features Antifertility effects Ref. LDH-C4 140 kDa Anti-LDH-C4 antibody enters the female ...

Steril. 88, S306 (2007). Shiloh H, Lahav-Baratz S, Koifman M et al. The impact of cigarette smoking on zona pellucida thickness of oocytes and embryos prior to transfer into the uterine cavity.

Figure 2: Pol-Scope imaging of metaphase II spindles (indicated by arrowheads) of a bovine oocyte (A) free of zona pellucida and (B) with zona pellucida intact. In vitro fertilization of mouse ...

Western rangelands can sustain the wild horses and burros that exist, particularly if the BLM adopts a proactive approach using humane and proven fertility control methods such as porcine zona ...

Multiple gestations are the most frequent complications associated with assisted reproductive techniques (ART). To decrease the rate of twin and higher order multiple gestations, the ...

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one possibility is the generation of a more hydrodynamic sperm head that speeds the transit through the female reproductive tract and across the zona pellucida surrounding the egg. It may also be ...

Understanding the Cost of Cancer Treatment in Mexico: A Detailed... La Zona, also known as La Zona Norte also known as La Coahuila ( actual name of the street ) is one of the city's oldest ...