1.LDH 短程释放法测定 NK 细胞活性动态变化本实验以 SP2/0细胞为靶细胞(即效应细胞),采用乳酸脱氢酶(LDH)短程释放法测定人工感染肝片吸虫的水牛和山羊的外周血液中淋巴细胞的 NK 活性动态变化。发现山羊在感染后 NK 活性有两次高峰,...1.LDH 短程释放法测定 NK 细胞活性动态变化本实验以 SP2/0细胞为靶细胞(即效应细胞),采用乳酸脱氢酶(LDH)短程释放法测定人工感染肝片吸虫的水牛和山羊的外周血液中淋巴细胞的 NK 活性动态变化。发现山羊在感染后 NK 活性有两次高峰,推测与虫体的发育或淋巴细胞的减少或嗜酸性粒细胞的增多有关;两个感染组(Ⅰ,200个囊蚴/只;Ⅱ,500个囊蚴/只)变化趋势相近,表明感染量与 NK展开更多
In recent years,the immune-modulatory role of all-trans astaxanthin from different pigment sources has been studied.It was reported that all-trans astaxanthin might exist as three stereoisomers,and the composition of ...In recent years,the immune-modulatory role of all-trans astaxanthin from different pigment sources has been studied.It was reported that all-trans astaxanthin might exist as three stereoisomers,and the composition of all-trans stereoisomers in natural materials differs from that of synthetic products.However,the different biological effects of various all-trans stereoisomers still remain unclear.In the present study,we evaluated the bioactivity of three astaxanthin stereoisomers,(3S,3'S)-trans-,(3R,3'R)-transand meso-trans-astaxanthin,in regulating cell-mediated immune response using mice lymphocytes and peritoneal exudates cells(PECs) systems.After the treatment with three astaxanthin stereoisomers(20 μmol L-1),the lymphocyte proliferation capacity,neutral red phagocytosis of PECs and natural killer(NK) cell cytotoxic activity were comparatively assessed.The results showed that all three astaxanthin stereoisomers significantly promoted lymphocyte proliferation,phagocytic capacity of PECs,and cytotoxic activity of NK cells.Moreover,the(3S,3'S)-trans-astaxanthin exhibited a much higher response than others.展开更多
文摘1.LDH 短程释放法测定 NK 细胞活性动态变化本实验以 SP2/0细胞为靶细胞(即效应细胞),采用乳酸脱氢酶(LDH)短程释放法测定人工感染肝片吸虫的水牛和山羊的外周血液中淋巴细胞的 NK 活性动态变化。发现山羊在感染后 NK 活性有两次高峰,推测与虫体的发育或淋巴细胞的减少或嗜酸性粒细胞的增多有关;两个感染组(Ⅰ,200个囊蚴/只;Ⅱ,500个囊蚴/只)变化趋势相近,表明感染量与 NK
文摘G804.8.G804.7 20011574心理应激对不同特质焦虑运动员 T 淋巴细胞亚群和糖皮质激素及其受体的影响=The effects ofpsychological stress on T-lymphocyte subsets,glucocorticoid and glucocorticoid receptor indifferent trait anxiety athletes(刊,中,A)/庄洁,陈佩杰,张剑,皮衍玲,章建成,任杰∥中国运动医学杂志.-2000.-19(2).-174-176图2表2参8(XH)心理∥焦虑∥应激∥糖质激素∥肾上腺皮质激素∥淋巴细胞∥影响以美国马滕斯专为运动员设计的特质焦虑量表(SCAT-A)测验为依据,测定不同心理应激对不同特质焦虑运动员 T
基金supported by Program for Changjiang Scholars and Innovative Research Team in University (IRT1188)
文摘In recent years,the immune-modulatory role of all-trans astaxanthin from different pigment sources has been studied.It was reported that all-trans astaxanthin might exist as three stereoisomers,and the composition of all-trans stereoisomers in natural materials differs from that of synthetic products.However,the different biological effects of various all-trans stereoisomers still remain unclear.In the present study,we evaluated the bioactivity of three astaxanthin stereoisomers,(3S,3'S)-trans-,(3R,3'R)-transand meso-trans-astaxanthin,in regulating cell-mediated immune response using mice lymphocytes and peritoneal exudates cells(PECs) systems.After the treatment with three astaxanthin stereoisomers(20 μmol L-1),the lymphocyte proliferation capacity,neutral red phagocytosis of PECs and natural killer(NK) cell cytotoxic activity were comparatively assessed.The results showed that all three astaxanthin stereoisomers significantly promoted lymphocyte proliferation,phagocytic capacity of PECs,and cytotoxic activity of NK cells.Moreover,the(3S,3'S)-trans-astaxanthin exhibited a much higher response than others.