نتایج جستجو برای: hypophysial
تعداد نتایج: 205 فیلتر نتایج به سال:
The popular perception of stress is that of social or work tensions and pressures that have an overall negative influence often accompanied by increased frequency of illness. However, stress is not all bad. A healthy response to acute stress is crucial for our interaction with the environment and for our ability to deal with everyday challenges, either physical or psychological. The key is to b...
The hypothalamic LH-RH content and the concentrations of pituitary and plasma LH were measured at various ages in female rats treated daily with 10 micrograms testosterone propionate or 10 micrograms oestradiol-17beta from birth to Day 15. Persistent vaginal oestrus was induced in all the treated rats. Both hormones significantly reduced the hypothalamic LH-RH content and pituitary and plasma L...
Ovoinhibitor is a serine protease-inhibiting protein that specifically inhibits serine proteinases such as trypsin and chymotrypsin. During recent attempts to raise monoclonal antibodies (MABS) against chicken bursa of Fabricius proteins, one MAB was produced that specifically recognized chicken ovoinhibitor. This was the first demonstration of ovoinhibitor in an avian immune organ. Further imm...
The effect of morphine administration on the subsequent stimulation of prolactin (PRL) secretion and the release of dopamine from tuberoinfundibular neurons was examined in this study. The administration of morphine (15 mg/kg s.c.) resulted 4 hr later in suppressed serum PRL concentrations. In addition, the increase in serum PRL concentrations induced by restraint stress was attenuated greatly ...
Correspondence: Ekaterina Pavlova Institute of Experimental Morphology, Pathology and Anthropology with Museum, BAS, Acad. G. Bonchev Str., Bl. 25, 1113 Sofia, Bulgaria. Tel.: +359 2 979 2336 e-mail: [email protected] ABSTRACT Sodium nitrite (NaNO2) is an inorganic salt with various industrial applications. In the circulation NaNO2 oxidizes hemoglobin to methemoglobin, which is incapable of t...
Effects of daily administration of melatonin for 15 days were evaluated with respect to ovarian activities and plasma gonadotropin (GtH II) and vitellogenin (Vg) levels in intact (INT) and pinealectomized (Px) female catfish, C. batrachus, during preparatory (April), prespawning (May and June), spawning (July) and post-spawning (September) periods. Px (saline control groups) caused a stimulator...
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