AIM: To investigate the anti-obesity and antibacterial effects of Ligustrum robustum(L. robustum) in vivoand in vitro and its possible mechanisms. METHODS: The effects of L. robustum aqueous extract(LR) on various gut...AIM: To investigate the anti-obesity and antibacterial effects of Ligustrum robustum(L. robustum) in vivoand in vitro and its possible mechanisms. METHODS: The effects of L. robustum aqueous extract(LR) on various gut bacteria in vitro were evaluated. The effects of LR on high-fat diet-fed(HFD) rats in vivo were also assessed. Culture methods,quantitative polymerase chain reaction,and terminalrestriction fragment length polymorphism were used to analyze the effects of LR on gut bacteria. Biochemical tests were also performed to detect the changes in obesity-related indicators after LR treatment. RESULTS: LR treatment lowered adipose weight and decreased Lee's index,blood glucose,total cholesterol,and lipid in the tested groups relative to control(P < 0.05). To determine the reasons for these changes,we assessed the potential bacteriostatic and bactericidal effects of LR on specific bacterial species in vitro. LR affected the richness,diversity,and evenness of gut bacteria,increased fecal Lactobacillus,and decreased Enterococci in HFD rats(P < 0.05). CONCLUSION: L. robustum may be a safe and effective food for weight loss and obesity control,and the effects of L. robustum might be mediated by the regulation of gut bacteria.展开更多
The prevention of lethal prostate cancer is a critical public health challenge that would improve health and reduce suffering from this disease. In this review, we discuss the evidence surrounding specific lifestyle a...The prevention of lethal prostate cancer is a critical public health challenge that would improve health and reduce suffering from this disease. In this review, we discuss the evidence surrounding specific lifestyle and dietary factors in the prevention of lethal prostate cancer. We present a summary of evidence for the following selected behavioral risk factors： obesity and weight change, physical activity, smoking, antioxidant intake, vitamin D and calcium, and coffee intake.展开更多
Objective: To investigate a previously hypothesized relation between natural hair color and endometriosis.Design: Prospective cohort study.Setting: Nurses’Health Study II with 10 years of follow- up.Participant(s): A...Objective: To investigate a previously hypothesized relation between natural hair color and endometriosis.Design: Prospective cohort study.Setting: Nurses’Health Study II with 10 years of follow- up.Participant(s): A total of 90, 065 women, 25- 42 years old, who had never been diagnosed with endometriosis, infertility, or cancer at baseline in 1989.Main Outcome Measure(s): Incidence of laparoscopically confirmed endometriosis according to natural hair color.Result(s): During 379, 422 person- years of follow- up, 1, 130 cases of laparoscopically confirmed endometriosiswere reported among women with no past infertility.After adjusting for age, calendar time, parity, race, and body mass index at age 18, we observed no association overall.However, compared with women with any other hair color, we observed an increased rate of endometriosis among women with naturally red hair who had never been infertile (incidence rate = 1.3, 95% confidence interval [CI] = 1.0- 1.7)- , but a decreased rate among women with naturally red hair among women who were infertile (incidence rate = 0.4, 95% CI = 0.2- 1.2); P value, test for heterogeneity = .03.Conclusion(s): Overall, we did not observe a significant relation between red hair color and the rate of endometriosis, however this prospective cohort study suggests that the relation may differ by infertility status.展开更多
Objective To detect the relationship between the polymorphism of the glycogen-targeting regulatory subunit of the skeletal muscle glycogen-associated protein phosphatase 1 (PPP1R3) gene and type 2 diabetes by case-con...Objective To detect the relationship between the polymorphism of the glycogen-targeting regulatory subunit of the skeletal muscle glycogen-associated protein phosphatase 1 (PPP1R3) gene and type 2 diabetes by case-control study. Methods We genotyped the PPP1R3 gene Asp905Tyr polymorphism and a common 3'-untranslated region AT (AU)-rich element (ARE) polymorphism in 101 type 2 diabetic patients and 101controls by oligonucleotide ligation assay (OLA) and polyacrylamide gel elecrophoresis, respectively. Results Subjects with Tyr/Tyr genotypes whose body mass index (BMI)<25 were used as the reference group. Those whose BMI25 with Asp905 had a 3.66-fold increase (95% CI: 1.48-9.06, P=0.005) in type 2 diabetes risk. No association was found between 3'UTR ARE polymorphism and type 2 diabetes mellitus (OR=1.15; 95% CI: 0.62-2.14, P=0.65). Conclusion A joint effect between the Asp905 and BMI increases the risk of type 2 diabetes, and Asp905Tyr and ARE polymorphism of PPP1R3 gene are not the major diabetogenic gene variants in Chinese population.展开更多
The studies of the natural progression of Parkinson＇s disease （PD） in Chinese populations have been lacking. To address this issue and obtain a preliminary data, we conducted a PD progression assessment in 15 adult...The studies of the natural progression of Parkinson＇s disease （PD） in Chinese populations have been lacking. To address this issue and obtain a preliminary data, we conducted a PD progression assessment in 15 adults with de novo PD from a nutritional intervention trial （NIT） cohort in Lin County China. Methods： Using the Copiah County screening questionnaire and United Kingdom Parkinson＇s Disease Society Brain Bank diagnostic criteria, we surveyed the available N IT cohort members in 2000 and diagnosed 86 patients as PD. In 2010, we resurveyed all PD patients and confirmed definite PD diagnosis in 15 cases with the rest of them being dead （54）： having probable （10） PD or vascular Parkinsonism （3）; relilsing to participate （2）; or being away （2）. In both surveys, we used Hoehn and Yahr （HY） scale and assessed the disease progression. Unified Parkinson＇s Disease Rating Scale （UPDRS） was added to the second survey. Results： In 2010, the average disease duration for 15 definite PD patients was 13.6 ~ 7.3 years. Over a 10-year time span, 9 out of 15 patients remained at the same HY stage while the remaining 6 progressed. Rigidity （47% vs. 100%; P 0.002） and postural instability （7% vs. 47%; P - 0.005） worsened significantly. The mean UPDRS motor scores in 2010 were 39.4 ± 23.7. Conclusions： Overall worsening of motor timction in PD seems to be the rule in this untreated cohort, and their rate of progression seemed to be slower than those reported in the western populations.展开更多
基金Supported by National Natural Science Foundation of ChinaNo.81273055+3 种基金Sichuan Provincial Department of Science and TechnologyNo.2014JY0001The Youth Foundation of Sichuan UniversityNo.2012SCU11099
文摘AIM: To investigate the anti-obesity and antibacterial effects of Ligustrum robustum(L. robustum) in vivoand in vitro and its possible mechanisms. METHODS: The effects of L. robustum aqueous extract(LR) on various gut bacteria in vitro were evaluated. The effects of LR on high-fat diet-fed(HFD) rats in vivo were also assessed. Culture methods,quantitative polymerase chain reaction,and terminalrestriction fragment length polymorphism were used to analyze the effects of LR on gut bacteria. Biochemical tests were also performed to detect the changes in obesity-related indicators after LR treatment. RESULTS: LR treatment lowered adipose weight and decreased Lee's index,blood glucose,total cholesterol,and lipid in the tested groups relative to control(P < 0.05). To determine the reasons for these changes,we assessed the potential bacteriostatic and bactericidal effects of LR on specific bacterial species in vitro. LR affected the richness,diversity,and evenness of gut bacteria,increased fecal Lactobacillus,and decreased Enterococci in HFD rats(P < 0.05). CONCLUSION: L. robustum may be a safe and effective food for weight loss and obesity control,and the effects of L. robustum might be mediated by the regulation of gut bacteria.
文摘The prevention of lethal prostate cancer is a critical public health challenge that would improve health and reduce suffering from this disease. In this review, we discuss the evidence surrounding specific lifestyle and dietary factors in the prevention of lethal prostate cancer. We present a summary of evidence for the following selected behavioral risk factors： obesity and weight change, physical activity, smoking, antioxidant intake, vitamin D and calcium, and coffee intake.
基金Project Vivafunded by the U.S. Environmental Protection Agency(RD83479801)the National Institutes of Health(K24 HD069408,R37 HD 034568, P01 ES009825)
文摘[背景]对成人的研究已表明,空气污染暴露与血压升高有关。[目的]研究产前暴露于空气污染物与新生儿收缩压(SBP)之间的关联。[方法]研究马萨诸塞州波士顿市地区出生前队列中的1 131对母婴,计算各妊娠期以及产前2~90 d在固定监测点测量的时间分辨的细颗粒物(≤2.5μm;PM2.5)、炭黑(BC)、一氧化氮(氮氧化合物)、二氧化氮(NO2)、臭氧(O3)和一氧化碳(CO)的平均暴露水平,并估计居住点水平上时空分辨的PM2.5和BC暴露。用自动仪器测量平均年龄为(30±18)h新生儿的收缩压,并使用混合效应模型检验空气污染物暴露与SBP之间的关联,分析中考虑了测量环境、孩子的出生体重、母亲的年龄、种族/族裔、社会经济地位、妊娠后期BP以及时间趋势。估计值表示为每一种污染物每增加一个四分位数间距(IQR)所致的SBP差异。[结果]在妊娠后期,较高的平均PM2.5和BC暴露与较高的SBP有关联[例如,居住地90 d BC平均值增加0.32μg/m3与SBP升高1.0(95%CI:0.1~1.8)mm Hg有关联]。相比之下,O3与SBP呈负相关[例如,产前90 d O3升高13.5×10-9与SBP降低2.3(95%CI:-4.4^-0.2)mm Hg有关联]。[结论]妊娠后期暴露于PM2.5和BC与新生儿SBP呈正相关,而O3与SBP呈负相关。纵向随访能够评估这些研究结果对这些新生儿随之的童年期和成年期的健康影响。
文摘Objective: To investigate a previously hypothesized relation between natural hair color and endometriosis.Design: Prospective cohort study.Setting: Nurses’Health Study II with 10 years of follow- up.Participant(s): A total of 90, 065 women, 25- 42 years old, who had never been diagnosed with endometriosis, infertility, or cancer at baseline in 1989.Main Outcome Measure(s): Incidence of laparoscopically confirmed endometriosis according to natural hair color.Result(s): During 379, 422 person- years of follow- up, 1, 130 cases of laparoscopically confirmed endometriosiswere reported among women with no past infertility.After adjusting for age, calendar time, parity, race, and body mass index at age 18, we observed no association overall.However, compared with women with any other hair color, we observed an increased rate of endometriosis among women with naturally red hair who had never been infertile (incidence rate = 1.3, 95% confidence interval [CI] = 1.0- 1.7)- , but a decreased rate among women with naturally red hair among women who were infertile (incidence rate = 0.4, 95% CI = 0.2- 1.2); P value, test for heterogeneity = .03.Conclusion(s): Overall, we did not observe a significant relation between red hair color and the rate of endometriosis, however this prospective cohort study suggests that the relation may differ by infertility status.
文摘Objective To detect the relationship between the polymorphism of the glycogen-targeting regulatory subunit of the skeletal muscle glycogen-associated protein phosphatase 1 (PPP1R3) gene and type 2 diabetes by case-control study. Methods We genotyped the PPP1R3 gene Asp905Tyr polymorphism and a common 3'-untranslated region AT (AU)-rich element (ARE) polymorphism in 101 type 2 diabetic patients and 101controls by oligonucleotide ligation assay (OLA) and polyacrylamide gel elecrophoresis, respectively. Results Subjects with Tyr/Tyr genotypes whose body mass index (BMI)<25 were used as the reference group. Those whose BMI25 with Asp905 had a 3.66-fold increase (95% CI: 1.48-9.06, P=0.005) in type 2 diabetes risk. No association was found between 3'UTR ARE polymorphism and type 2 diabetes mellitus (OR=1.15; 95% CI: 0.62-2.14, P=0.65). Conclusion A joint effect between the Asp905 and BMI increases the risk of type 2 diabetes, and Asp905Tyr and ARE polymorphism of PPP1R3 gene are not the major diabetogenic gene variants in Chinese population.
文摘The studies of the natural progression of Parkinson＇s disease （PD） in Chinese populations have been lacking. To address this issue and obtain a preliminary data, we conducted a PD progression assessment in 15 adults with de novo PD from a nutritional intervention trial （NIT） cohort in Lin County China. Methods： Using the Copiah County screening questionnaire and United Kingdom Parkinson＇s Disease Society Brain Bank diagnostic criteria, we surveyed the available N IT cohort members in 2000 and diagnosed 86 patients as PD. In 2010, we resurveyed all PD patients and confirmed definite PD diagnosis in 15 cases with the rest of them being dead （54）： having probable （10） PD or vascular Parkinsonism （3）; relilsing to participate （2）; or being away （2）. In both surveys, we used Hoehn and Yahr （HY） scale and assessed the disease progression. Unified Parkinson＇s Disease Rating Scale （UPDRS） was added to the second survey. Results： In 2010, the average disease duration for 15 definite PD patients was 13.6 ~ 7.3 years. Over a 10-year time span, 9 out of 15 patients remained at the same HY stage while the remaining 6 progressed. Rigidity （47% vs. 100%; P 0.002） and postural instability （7% vs. 47%; P - 0.005） worsened significantly. The mean UPDRS motor scores in 2010 were 39.4 ± 23.7. Conclusions： Overall worsening of motor timction in PD seems to be the rule in this untreated cohort, and their rate of progression seemed to be slower than those reported in the western populations.
