超长链脂肪酸延伸酶(elongase of verylong chain fatty acids,ELOVL)家族是哺乳动物中一类编码超长链脂肪酸(very long chain fatty acids,VLCFA)延伸酶的基因家族。该家族有7个成员:ELOVL1～7。各个成员编码的蛋白质参与不同长度脂肪...超长链脂肪酸延伸酶(elongase of verylong chain fatty acids,ELOVL)家族是哺乳动物中一类编码超长链脂肪酸(very long chain fatty acids,VLCFA)延伸酶的基因家族。该家族有7个成员:ELOVL1～7。各个成员编码的蛋白质参与不同长度脂肪酸链的延长,对脂肪酸的代谢进行调控,进而发挥其生物学功能。本文就该家族成员的结构、生物学功能及表达调控进行综述。展开更多
Introduction: The National Cholesterol Education Program and the American Heart Association considered a dietary therapy as a primary approach to prevent and treat hyperlipemia and hypertension. Mediterranean diet has...Introduction: The National Cholesterol Education Program and the American Heart Association considered a dietary therapy as a primary approach to prevent and treat hyperlipemia and hypertension. Mediterranean diet has been promoted as a model of healthy eating and widely recognized for favorable effects on lipid profile. Objective: We investigated whether the adherence to dietary recommendations have any significant benefit on cardiovascular risk factors. A cohort of 2141 of subjects attending our center was recruited by collaborating General Practitioners who participate in the PLIC Study. Methods: Participants completed a week quantitative food questionnaire, which was analized on a subgroup of 338 subjects at enrolment (V1) and after two years of follow up (V2). Daily energy intake in Kcal, lipid, protein, carbohydrates in percentage of total energy, monounsatured (MUFA), saturated (SFA), polyunsaturated fatty acids (PUFA) in g/die, cholesterol in mg/die was calculated from the food questionnaires. Cardiovascular risk (CVR) was estimated according Framingham algorithm. Results: Subjects which adhered to AHA step 1 diet showed a significantly lower total cholesterol, 213.88 ± 43.00 vs 220.19 ± 39.3 mg/dL, LDL-cholesterol, 139.80 ± 76.36 vs 142.75 ± 35.60 mg/dL (p < 0.01 for both) as compared to subjects with an impaired dietary pattern while no differences were observed for HDL cholesterol. Conclusions: Changes in dietary profiles are associated with an improved lipid profile and therefore remain one of the more favorable nutritional models in the primary prevention of cardiovascular disease.展开更多
Esophageal squamous cell carcinoma (ESCC), as the main histological type of esophageal cancer (EC), has the characteristics of high malignant degree, high mortality and tendency to lymph node metastasis. Despite the c...Esophageal squamous cell carcinoma (ESCC), as the main histological type of esophageal cancer (EC), has the characteristics of high malignant degree, high mortality and tendency to lymph node metastasis. Despite the combination of surgery and chemoradiotherapy, ECSS has a poor prognosis. Ferroptosis is a newly discovered iron-dependent programmed cell death pattern characterized by the accumulation of lipid peroxidation and characteristic morphological changes of mitochondria. It regulates the growth and invasion of cancer cells in various tumors such as gastric cancer and pancreatic cancer. In this article, we mainly introduce the ferroptosis regulatory mechanism in ESCC, hoping to provide a new direction and ideas for the treatment of ECSS.展开更多
文摘超长链脂肪酸延伸酶(elongase of verylong chain fatty acids,ELOVL)家族是哺乳动物中一类编码超长链脂肪酸(very long chain fatty acids,VLCFA)延伸酶的基因家族。该家族有7个成员:ELOVL1～7。各个成员编码的蛋白质参与不同长度脂肪酸链的延长,对脂肪酸的代谢进行调控,进而发挥其生物学功能。本文就该家族成员的结构、生物学功能及表达调控进行综述。
文摘Introduction: The National Cholesterol Education Program and the American Heart Association considered a dietary therapy as a primary approach to prevent and treat hyperlipemia and hypertension. Mediterranean diet has been promoted as a model of healthy eating and widely recognized for favorable effects on lipid profile. Objective: We investigated whether the adherence to dietary recommendations have any significant benefit on cardiovascular risk factors. A cohort of 2141 of subjects attending our center was recruited by collaborating General Practitioners who participate in the PLIC Study. Methods: Participants completed a week quantitative food questionnaire, which was analized on a subgroup of 338 subjects at enrolment (V1) and after two years of follow up (V2). Daily energy intake in Kcal, lipid, protein, carbohydrates in percentage of total energy, monounsatured (MUFA), saturated (SFA), polyunsaturated fatty acids (PUFA) in g/die, cholesterol in mg/die was calculated from the food questionnaires. Cardiovascular risk (CVR) was estimated according Framingham algorithm. Results: Subjects which adhered to AHA step 1 diet showed a significantly lower total cholesterol, 213.88 ± 43.00 vs 220.19 ± 39.3 mg/dL, LDL-cholesterol, 139.80 ± 76.36 vs 142.75 ± 35.60 mg/dL (p < 0.01 for both) as compared to subjects with an impaired dietary pattern while no differences were observed for HDL cholesterol. Conclusions: Changes in dietary profiles are associated with an improved lipid profile and therefore remain one of the more favorable nutritional models in the primary prevention of cardiovascular disease.
文摘Esophageal squamous cell carcinoma (ESCC), as the main histological type of esophageal cancer (EC), has the characteristics of high malignant degree, high mortality and tendency to lymph node metastasis. Despite the combination of surgery and chemoradiotherapy, ECSS has a poor prognosis. Ferroptosis is a newly discovered iron-dependent programmed cell death pattern characterized by the accumulation of lipid peroxidation and characteristic morphological changes of mitochondria. It regulates the growth and invasion of cancer cells in various tumors such as gastric cancer and pancreatic cancer. In this article, we mainly introduce the ferroptosis regulatory mechanism in ESCC, hoping to provide a new direction and ideas for the treatment of ECSS.
