Immature oocytes become fertilisable eggs through a process called meiotic maturation, which is often induced by specific hormones. Oocyte maturation involves the activation of various signal transduction pathways that converge to activate maturation-promoting factor (MPF); this is a key activity that catalyses entry into M-phase of meiosis I and meiosis II. Whereas the function of MPF in promo...

In an attempt to examine genomic function of the oocyte nucleus during meiotic maturation, the effects of X-irradiation on the oocyte of the frog (Rana pipiens) were studied. When oocytes were irradiated with 6000-36000 R before initiation of maturation, the ovulated eggs frequently failed to be fertilized and the jelly surrounding the unfertilizable eggs was always damaged. However, the egg it...

Bronchopulmonary dysplasia (BPD), a disorder characterized by arrested lung development, is frequent cause of morbidity and mortality in premature infants. Parenchymal changes BPD are relatively well-characterized highly studied; however, there has been less emphasis placed on the role that airways disease plays pathophysiology BPD. In preterm infants born between 22 32 weeks gestation, conduct...

In an attempt to examine genomic function of the oocyte nucleus during meiotic maturation, the effects of X-irradiation on the oocyte of the frog (Rana pipiens) were studied. When oocytes were irradiated with 6000-36000 R before initiation of maturation, the ovulated eggs frequently failed to be fertilized and the jelly surrounding the unfertilizable eggs was always damaged. However, the egg it...

Progesterone induces maturation by releasing oocyte from G2 of MI cell cycle arrest. This process is rate limiting as it produces fertilizable eggs. Therefore, it draws a lot of attention. Na+, K+-ATPase is a membrane bound enzyme molecule that has known to have various functions. One of these functions is to act as receptor for Progesterone. In oocyte maturation to egg entirely depends on prog...

this report details the presence of hyperammonemia in a patient who sustained cardiac arrest after a traumatic amputation. serum ammonia levels may rise due to numerous etiologies; however, few reports detail its usefulness in diagnosing subclinical seizures. in this case, we successfully utilized persistently elevated serum ammonia levels as a marker of subclinical seizures in a patient who su...

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