Xu et al used the HOMA2 model to estimate theβ-cell function and insulin resistance levels in an individual from simultaneously measured fasting plasma glucose and fasting plasma insulin levels.This method is based o...Xu et al used the HOMA2 model to estimate theβ-cell function and insulin resistance levels in an individual from simultaneously measured fasting plasma glucose and fasting plasma insulin levels.This method is based on the assumption that the glucose-insulin axis is central for the metabolic activities,which led to type 2 diabetes.However,significant downregulation of both the NKX2-1 gene and the TPD52L3 gene force an increase in the release of free fatty acids(FFAs)into the blood circulation,which leads to a marked reduction in membrane flexibility.These data favor a FFA-glucose-insulin axis.The authors are invited to extend their study with the introduction of the saturation index(number of carbon-carbon double bonds per 100 fatty-acyl chains),as observed in erythrocytes.展开更多
为了研究如皋火腿中的酯类物质。选取7条4.5-5.0 kg 如皋火腿为试材，用常规方法测定其理化指标（水分、盐分和pH值），通过气相色谱测定从提取脂质中分离的游离脂肪酸含量，并测定其共轭二烯值与羰基值。在如皋火腿股二头肌和皮下脂肪...为了研究如皋火腿中的酯类物质。选取7条4.5-5.0 kg 如皋火腿为试材，用常规方法测定其理化指标（水分、盐分和pH值），通过气相色谱测定从提取脂质中分离的游离脂肪酸含量，并测定其共轭二烯值与羰基值。在如皋火腿股二头肌和皮下脂肪中含盐量为11.60％和1.07％，水分为40.21％和3.65％，pH值为5.71和6.02，游离脂肪酸含量为49．65％和28．11％，除pH外均存在极显著差异。如皋火腿中含有丰富的游离脂肪酸，在皮下脂肪中油酸的含量最多，股二头肌中亚油酸的含量最多。火腿中存在少量的反式脂肪酸。皮下脂肪有反式的油酸，股二头肌中有反式油酸、亚油酸和亚麻酸。股二头肌的氧化明显高于皮下脂肪，可能与酶活力、氧化方式有关。展开更多
文摘Xu et al used the HOMA2 model to estimate theβ-cell function and insulin resistance levels in an individual from simultaneously measured fasting plasma glucose and fasting plasma insulin levels.This method is based on the assumption that the glucose-insulin axis is central for the metabolic activities,which led to type 2 diabetes.However,significant downregulation of both the NKX2-1 gene and the TPD52L3 gene force an increase in the release of free fatty acids(FFAs)into the blood circulation,which leads to a marked reduction in membrane flexibility.These data favor a FFA-glucose-insulin axis.The authors are invited to extend their study with the introduction of the saturation index(number of carbon-carbon double bonds per 100 fatty-acyl chains),as observed in erythrocytes.
文摘为了研究如皋火腿中的酯类物质。选取7条4.5-5.0 kg 如皋火腿为试材，用常规方法测定其理化指标（水分、盐分和pH值），通过气相色谱测定从提取脂质中分离的游离脂肪酸含量，并测定其共轭二烯值与羰基值。在如皋火腿股二头肌和皮下脂肪中含盐量为11.60％和1.07％，水分为40.21％和3.65％，pH值为5.71和6.02，游离脂肪酸含量为49．65％和28．11％，除pH外均存在极显著差异。如皋火腿中含有丰富的游离脂肪酸，在皮下脂肪中油酸的含量最多，股二头肌中亚油酸的含量最多。火腿中存在少量的反式脂肪酸。皮下脂肪有反式的油酸，股二头肌中有反式油酸、亚油酸和亚麻酸。股二头肌的氧化明显高于皮下脂肪，可能与酶活力、氧化方式有关。
