观察梅花鹿鹿茸活性多肽(pilose antler active polypeptide,PAAP)软胶囊对主动免疫的大鼠免疫功能的影响。饲喂基础日粮的Wistar大鼠,每组20只,分别连续灌喂蒸馏水、白酒和鹿茸活性多肽软胶囊15d。测定并计算胸腺、脾脏指数和免疫功能...观察梅花鹿鹿茸活性多肽(pilose antler active polypeptide,PAAP)软胶囊对主动免疫的大鼠免疫功能的影响。饲喂基础日粮的Wistar大鼠,每组20只,分别连续灌喂蒸馏水、白酒和鹿茸活性多肽软胶囊15d。测定并计算胸腺、脾脏指数和免疫功能。结果显示:P A A P可以减轻由酒精引起的免疫抑制,减轻胸腺萎缩,提高胸腺和脾脏指数,提高外周血中性粒细胞的吞噬功能,提高外周血T淋巴细胞百分率及分泌功能,提高血清中抗体水平,并提高支气管肺泡灌洗液中肺泡巨噬细胞的吞噬功能及T淋巴细胞百分率。展开更多
A heat\|stable growth factor has been purified to homogeneity from human placenta. Purification procedure involved extraction with acidic medium, precipitation using ethanol, DE\|52 ion\|exchange chromatography, and r...A heat\|stable growth factor has been purified to homogeneity from human placenta. Purification procedure involved extraction with acidic medium, precipitation using ethanol, DE\|52 ion\|exchange chromatography, and reversed\|phase HPLC. The purified preparation has been named human placental growth factor\|1 (HPGF\|1), which simulates the proliferation of some cell lines, such as human amniotic cell, mouse marrow tumor cell, and mouse fibroblast cell. The growth factor has an approximate molecular weight of 1 900. It is a glycopeptide which contains a polypeptide chain consisting of 10 amino acid residues with molecular weight of 1 195. The N\|terminal residue of the polypeptide chain part is phenylalanine. The molecular weight of non\|peptide part is 682. The isoelectric point of the growth factor is pI 6.8.展开更多
胶原蛋白是生物体内的重要蛋白质,是结缔组织的主要蛋白质成分。疯牛病(B S E)、口蹄疫(F M D)、禽流感等疾病的发生使人们从陆生源动物组织获取胶原蛋白及其肽的途径受阻。我国渔业资源极其丰富,海产品加工的下脚料含有丰富的胶原,与...胶原蛋白是生物体内的重要蛋白质,是结缔组织的主要蛋白质成分。疯牛病(B S E)、口蹄疫(F M D)、禽流感等疾病的发生使人们从陆生源动物组织获取胶原蛋白及其肽的途径受阻。我国渔业资源极其丰富,海产品加工的下脚料含有丰富的胶原,与陆生胶原肽相比海洋胶原蛋白肽具有许多独特的生理功能和理化性质。近二三十年来海洋胶原蛋白及其酶解产物胶原活性多肽取得很大进展,目前海洋胶原蛋白肽也已经成为国内外研究的热点。本文将对海洋胶原蛋白及其活性肽的结构、性质、提取方法以及胶原活性多肽生理活性和发展前景等的研究进展作一综述。展开更多
文摘观察梅花鹿鹿茸活性多肽(pilose antler active polypeptide,PAAP)软胶囊对主动免疫的大鼠免疫功能的影响。饲喂基础日粮的Wistar大鼠,每组20只,分别连续灌喂蒸馏水、白酒和鹿茸活性多肽软胶囊15d。测定并计算胸腺、脾脏指数和免疫功能。结果显示:P A A P可以减轻由酒精引起的免疫抑制,减轻胸腺萎缩,提高胸腺和脾脏指数,提高外周血中性粒细胞的吞噬功能,提高外周血T淋巴细胞百分率及分泌功能,提高血清中抗体水平,并提高支气管肺泡灌洗液中肺泡巨噬细胞的吞噬功能及T淋巴细胞百分率。
文摘A heat\|stable growth factor has been purified to homogeneity from human placenta. Purification procedure involved extraction with acidic medium, precipitation using ethanol, DE\|52 ion\|exchange chromatography, and reversed\|phase HPLC. The purified preparation has been named human placental growth factor\|1 (HPGF\|1), which simulates the proliferation of some cell lines, such as human amniotic cell, mouse marrow tumor cell, and mouse fibroblast cell. The growth factor has an approximate molecular weight of 1 900. It is a glycopeptide which contains a polypeptide chain consisting of 10 amino acid residues with molecular weight of 1 195. The N\|terminal residue of the polypeptide chain part is phenylalanine. The molecular weight of non\|peptide part is 682. The isoelectric point of the growth factor is pI 6.8.
文摘胶原蛋白是生物体内的重要蛋白质,是结缔组织的主要蛋白质成分。疯牛病(B S E)、口蹄疫(F M D)、禽流感等疾病的发生使人们从陆生源动物组织获取胶原蛋白及其肽的途径受阻。我国渔业资源极其丰富,海产品加工的下脚料含有丰富的胶原,与陆生胶原肽相比海洋胶原蛋白肽具有许多独特的生理功能和理化性质。近二三十年来海洋胶原蛋白及其酶解产物胶原活性多肽取得很大进展,目前海洋胶原蛋白肽也已经成为国内外研究的热点。本文将对海洋胶原蛋白及其活性肽的结构、性质、提取方法以及胶原活性多肽生理活性和发展前景等的研究进展作一综述。
