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بین المللی علوم (منتشر نمی شود)
مقاله 2، دوره 1، شماره 0 - شماره پیاپی 1358، اردیبهشت 1380 اصل مقاله (96.38 K)
نویسندگان
Houri Sepehri؛ Roya Zoraghi؛ Ali, Haeri Rouhani^*
عنوان مقاله [English]
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چکیده [English]
Recent studies have indicated that several plant extracts reputed to be lactogenic are capable of inducing ?-casein synthesis in mammary epithelial cells. This enhancement is mediated through a stimulation of prolactin release from lactotropes in anterior pituitary. Therefore it is admitted that these extracts are capable of stimulating prolactin secretion from hypophysis. A partial purification of these extracts, revealed that their active compounds are pectin in most cases and ?-glucan in other cases. In this work, the effect of various concentrations of both pure pectic acid and ?-glucan on prolactin secretion from ewe hypophysis fragments is investigated. It is shown that pectic acid in the 50-150 ?g/ml range concentration and ?-glucan in the 200-400 ?g/ml range concentration are capable of stimulating prolactin secretion significantly (P<0.05, P<0.01), from hypophysis explants.
کلیدواژه‌ها [English]
?-glucan, Ovine Pituitary Explants, Pectic Acid, Prolactin Secretion

آمار تعداد مشاهده مقاله: 850 تعداد دریافت فایل اصل مقاله: 836

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