To investigate the protective effects of β-carotene in rats against the development of chronic bronchitis induced by cigarette smoking Methods Forty-two Male Wistar rats were randomly divided into three study grou...To investigate the protective effects of β-carotene in rats against the development of chronic bronchitis induced by cigarette smoking Methods Forty-two Male Wistar rats were randomly divided into three study groups: ① control (n=15), animals underwent no treatment; ② cigarette smoking (n=15), animals developed chronic bronchitis through long-term cigarette smoking twice a day for 75 d; ③ β-carotene plus cigarette smoking animals (n=12) were given 1 ml or 15 mg/kg β-carotene orally every day just before cigarette smoking The levels of IL-6, IL-8, NO, superoxide dismutase (SOD) and lipoperoxide (LPO) in serum, bronchoalveolar lavage fluid (BALF) and lung tissue were measured and the pathological changes to lung tissue were analyzed using light microscopy Results Long-term cigarette smoking caused an obvious increase in the amount of IL-6, IL-8 and LPO and a sharp decrease in the levels of NO and SOD in smoking animals compared to controls β-carotene intake reversed all the changes induced by smoking and alleviated the pathological changes caused by chronic bronchitis Conclusions Quantitative oral intake of β-carotene had protective effects against chronic bronchitis induced by long-term cigarette smoking, which was associated with the increased production of NO, the clearance of some oxidative free radicals (OFR) and the alleviation of chronic inflammation展开更多
Taling Tene Rodrigue(大灵·德内·罗德里格),来自非洲喀麦隆,在这篇访谈中他阐述了他对武术的独特看法:他认为其实在世界很多文化中都具有一种武术的文化,非洲有非洲的武技文化,中国也有自己独特的武术文化,因此在文化的传播...Taling Tene Rodrigue(大灵·德内·罗德里格),来自非洲喀麦隆,在这篇访谈中他阐述了他对武术的独特看法:他认为其实在世界很多文化中都具有一种武术的文化,非洲有非洲的武技文化,中国也有自己独特的武术文化,因此在文化的传播中,首先在语言翻译中,用"Martial Art"来描述中国武术是不够准确表达中国武术的文化内涵的,他希望以后能找到一个更准确的词语来表述中国武术,同样"African Martial Arts"概念的中文翻译也有困难。另外,他有一个关于"中喀武术"传播梦想,即建立一个"综合文化机构",通过中国武术传播本土化来进一步地推广中国武术以及以非洲的武技文化,从而加强中非文化交流。展开更多
文摘To investigate the protective effects of β-carotene in rats against the development of chronic bronchitis induced by cigarette smoking Methods Forty-two Male Wistar rats were randomly divided into three study groups: ① control (n=15), animals underwent no treatment; ② cigarette smoking (n=15), animals developed chronic bronchitis through long-term cigarette smoking twice a day for 75 d; ③ β-carotene plus cigarette smoking animals (n=12) were given 1 ml or 15 mg/kg β-carotene orally every day just before cigarette smoking The levels of IL-6, IL-8, NO, superoxide dismutase (SOD) and lipoperoxide (LPO) in serum, bronchoalveolar lavage fluid (BALF) and lung tissue were measured and the pathological changes to lung tissue were analyzed using light microscopy Results Long-term cigarette smoking caused an obvious increase in the amount of IL-6, IL-8 and LPO and a sharp decrease in the levels of NO and SOD in smoking animals compared to controls β-carotene intake reversed all the changes induced by smoking and alleviated the pathological changes caused by chronic bronchitis Conclusions Quantitative oral intake of β-carotene had protective effects against chronic bronchitis induced by long-term cigarette smoking, which was associated with the increased production of NO, the clearance of some oxidative free radicals (OFR) and the alleviation of chronic inflammation
