目的探究高脂血症患者SLCO1B1和ApoE基因多态性及其与患者血脂水平的相关性。方法回顾性分析我院2018年1月至2019年4月期间收治的115例高脂血症患者的三酰甘油(triglyceride,TG)、总胆固醇(total cholesterol,TC)、低密度脂蛋白胆固醇(l...目的探究高脂血症患者SLCO1B1和ApoE基因多态性及其与患者血脂水平的相关性。方法回顾性分析我院2018年1月至2019年4月期间收治的115例高脂血症患者的三酰甘油(triglyceride,TG)、总胆固醇(total cholesterol,TC)、低密度脂蛋白胆固醇(low density lipoprotein cholesterol,LDL-C)以及高密度脂蛋白胆固醇(high density lipoprotein cholesterol,HDL-C)等临床数据资料,将高脂血症患者作为观察组,同期选取106例健康志愿者作为对照组。比较观察组和对照组受测者SLCO1B1、ApoE基因多态性分布特征以及观察组患者SLCO1B1、ApoE基因表型组间各血脂水平指标的差异,同时采用偏相关性分析高脂血症患者SLCO1B1、ApoE基因与血脂水平的相关性。结果SLCO1B1基因多态性分布:观察组和对照组受测者A基因表型频率分别为77.39%、82.08%,均为组内最高,C基因表型频率均为组内最低,其中对照组健康志愿者未检测出C基因表型,A、B以及C基因表型频率组间比较差异均无统计学意义(P>0.05);ApoE基因多态性分布:观察组和对照组受测者E3基因表型频率分别为63.48%、76.42%,均为组内最高,同时观察组患者E3基因表型频率明显低于对照组健康志愿者,且观察组患者E4基因表型频率16.52%显著高于对照组健康志愿者5.66%,组间比较差异均具有统计学意义(P<0.05);高脂血症患者SLCO1B1基因表型A组TG、TC、LDL-C均高于B组和C组,B组HDL-C高于A组和C组,但3组基因表型TG、TC、LDL-C以及HDL-C等血脂指标水平差异无统计学意义(P>0.05);高脂血症患者ApoE基因表型E2、E3以及E4组TG、LDL-C、HDL-C水平比较均无统计学意义(P>0.05),但E4组TC水平显著高于E2组和E3组,组间差异比较具有统计学意义(P<0.05);偏相关性分析显示:SLCO1B1基因多态性与各血脂指标水平均无明显相关性(P>0.05),ApoE基因多态性与TG、HDL-C水平也均无相关趋势(P>0.05),但与TC(r=0.36)、LDL-C(r=0.28)水平具有相关性(P<0.05)。结论高脂血症患者SLCO1B1和ApoE基因频率分布均存在明显不均,其中ApoE基因多态性分布与血脂水平存在相关趋势,对患者降脂药物以及饮食干预治疗方案的选择具有重要价值。展开更多
In 1934,Frits Zernike demonstrated that it is possible to exploit the sample’s refractive index to obtain superior contrast images of biological cells.The refractive index contrast of a cell surrounded by media yield...In 1934,Frits Zernike demonstrated that it is possible to exploit the sample’s refractive index to obtain superior contrast images of biological cells.The refractive index contrast of a cell surrounded by media yields a change in the phase and intensity of the transmitted light wave.This change can be due to either scattering or absorption caused by the sample.Most cells are transparent at visible wavelengths,which means the imaginary component of their complex refractive index,also known as extinction coefficient k,is close to zero.Here,we explore the use of c-band ultra-violet(UVC)light for high-contrast high-resolution label-free microscopy,as k is naturally substantially higher in the UVC than at visible wavelengths.Using differential phase contrast illumination and associated processing,we achieve a 7-to 300-fold improvement in contrast compared to visible-wavelength and UVA differential interference contrast microscopy or holotomography,and quantify the extinction coefficient distribution within liver sinusoidal endothelial cells.With a resolution down to 215 nm,we are,for the first time in a far-field label-free method,able to image individual fenestrations within their sieve plates which normally requires electron or fluorescence superresolution microscopy.UVC illumination also matches the excitation peak of intrinsically fluorescent proteins and amino acids and thus allows us to utilize autofluorescence as an independent imaging modality on the same setup.展开更多
Background:Owing to the multifactorial nature of the pathogenesis of diabetic peripheral neuropathy (DPN),conventional drug therapies have not been effective.The application of stem cells transplantation may be useful...Background:Owing to the multifactorial nature of the pathogenesis of diabetic peripheral neuropathy (DPN),conventional drug therapies have not been effective.The application of stem cells transplantation may be useful for the treatment of DPN.This study was designed to assess the safety and therapeutic effects of autologous bone marrow mononuclear cells (BMMNCs) transplantation on the treatment of refractory DPN.Methods:One hundred and sixty-eight patients with refractory DPN were recruited and enrolled in the study.They received intramuscular injection of BMMNCs and followed at 1,3,6,12,18,24,and 36 months after the transplantation.Clinical data,Toronto Clinical Scoring System (TCSS),and nerve conduction studies (NCSs) were compared before and after the transplantation.Results:The signs and symptoms of neuropathy were significantly improved after BMMNCs transplantation.The values of the TCSS scores at 1 month (9.68 ± 2.49 vs.12.55 ± 2.19,P<0.001) and 3 months (8.47 ± 2.39 vs.12.55 ± 2.19,P<0.001) after the treatment reduced significantly compared with the baseline value.This decrement remained persistent until the end of the study.The conduction velocity and action potential and sensory nerves were significantly improved after transplantation (3 and 12 months after the treatment vs.the baseline:motor nerve conduction velocity,40.24 ± 2.80 and 41.00 ± 2.22 m/s vs.38.21 ± 2.28 m/s,P<0.001;sensory nerve conduction velocity,36.96 ± 2.26 and 39.15 ± 2.61 m/s vs.40.41 ± 2.22 m/s,P<0.001;compound muscle action potential,4.67 ± 1.05 and 5.50 ± 1.20 μV vs.5.68 ± 1.08 μV,P<0.001;sensory nerve action potential,4.29 ± 0.99 and 5.14 ± 1.26 μV vs.5.41 ± 1.14 μV,P<0.001).No adverse event associated with the treatment was observed during the follow-up period.Conclusions:Autologous transplantation of BMMNCs may be an effective and promising therapeutic strategy for the treatment of refractory DPN.展开更多
Background：Hyperglycemia on admission has been found to elevate risk for mortality and adverse clinical events after acute myocardial infarction （AMI）,but there are evidences that the relationship of blood glucose ...Background：Hyperglycemia on admission has been found to elevate risk for mortality and adverse clinical events after acute myocardial infarction （AMI）,but there are evidences that the relationship of blood glucose and mortality may differ between diabetic and nondiabetic patients.Prior studies in China have provided mixed results and are limited by statistical power.Here,we used data from a large,nationally representative sample of patients hospitalized with AMI in China in 2001,2006,and 2011 to assess if admission glucose is of prognostic value in China and if this relationship differs depending on the presence or absence of diabetes.Methods：Using a nationally representative sample of patients with AMI in China in 2001,2006,and 2011,we categorized patients according to their glucose levels at admission （〈3.9,3.9-7.7,7.8-11.0,and ≥11.1 mmol/L） and compared in-hospital mortality across these admission glucose categories,stratified by diabetes status.Among diabetic and nondiabetic patients,separately,we employed logistic regression to assess the differences in outcomes across admission glucose levels while adjusting for the same covariates.Results：Compared to patients with euglycemia （5.8%）,patients with moderate hyperglycemia （13.1%,odds ratio [OR] =2.44,95% confidence interval [CI,2.08-2.86]）,severe hyperglycemia （21.5%,OR =4.42,95% CI [3.78-5.18]）,and hypoglycemia （13.8%,OR =2.59,95% CI [1.68-4.00]）,all had higher crude in-hospital mortality after AMI regardless of the presence of recognized diabetes mellitus.After adjustment for patients＆#39; characteristics and clinical status,however,the relationship between admission glucose and in-hospital mortality was different for diabetic and nondiabetic patients （P for interaction =0.045）.Among diabetic patients,hypoglycemia （OR =3.02,95% CI [1.20-7.63]）,moderate hyperglycemia （OR =1.75,95% CI [1.04-2.92]）,and severe hyperglycemia （OR =2.97,95% CI [1.87-4.71]） remained associated with elevated risk for mortality,but among nondiabetic patients,only patients with moderate hyperglycemia （OR =2.34,95% CI [1.93-2.84]） and severe hyperglycemia （OR =3.92,95% CI [3.04-5.04]） were at elevated mortality risk and not hypoglycemia （OR =1.12,95% CI [0.60-2.08]）.This relationship was consistent across different study years （P for interaction =0.900）.Conclusions：The relationship between admission glucose and in-hospital mortality differs for diabetic and nondiabetic patients.Hypoglycemia was a bad prognostic marker among diabetic patients alone.The study results could be used to guide risk assessment among AMI patients using admission glucose.Trial Registration：www.clinicaltrials.gov,NCT01624883;https：// clinicaltrials.gov/ct2/show/NCT01624883.展开更多
文摘目的探究高脂血症患者SLCO1B1和ApoE基因多态性及其与患者血脂水平的相关性。方法回顾性分析我院2018年1月至2019年4月期间收治的115例高脂血症患者的三酰甘油(triglyceride,TG)、总胆固醇(total cholesterol,TC)、低密度脂蛋白胆固醇(low density lipoprotein cholesterol,LDL-C)以及高密度脂蛋白胆固醇(high density lipoprotein cholesterol,HDL-C)等临床数据资料,将高脂血症患者作为观察组,同期选取106例健康志愿者作为对照组。比较观察组和对照组受测者SLCO1B1、ApoE基因多态性分布特征以及观察组患者SLCO1B1、ApoE基因表型组间各血脂水平指标的差异,同时采用偏相关性分析高脂血症患者SLCO1B1、ApoE基因与血脂水平的相关性。结果SLCO1B1基因多态性分布:观察组和对照组受测者A基因表型频率分别为77.39%、82.08%,均为组内最高,C基因表型频率均为组内最低,其中对照组健康志愿者未检测出C基因表型,A、B以及C基因表型频率组间比较差异均无统计学意义(P>0.05);ApoE基因多态性分布:观察组和对照组受测者E3基因表型频率分别为63.48%、76.42%,均为组内最高,同时观察组患者E3基因表型频率明显低于对照组健康志愿者,且观察组患者E4基因表型频率16.52%显著高于对照组健康志愿者5.66%,组间比较差异均具有统计学意义(P<0.05);高脂血症患者SLCO1B1基因表型A组TG、TC、LDL-C均高于B组和C组,B组HDL-C高于A组和C组,但3组基因表型TG、TC、LDL-C以及HDL-C等血脂指标水平差异无统计学意义(P>0.05);高脂血症患者ApoE基因表型E2、E3以及E4组TG、LDL-C、HDL-C水平比较均无统计学意义(P>0.05),但E4组TC水平显著高于E2组和E3组,组间差异比较具有统计学意义(P<0.05);偏相关性分析显示:SLCO1B1基因多态性与各血脂指标水平均无明显相关性(P>0.05),ApoE基因多态性与TG、HDL-C水平也均无相关趋势(P>0.05),但与TC(r=0.36)、LDL-C(r=0.28)水平具有相关性(P<0.05)。结论高脂血症患者SLCO1B1和ApoE基因频率分布均存在明显不均,其中ApoE基因多态性分布与血脂水平存在相关趋势,对患者降脂药物以及饮食干预治疗方案的选择具有重要价值。
基金European Union’s Horizon 2020 Marie Skłodowska-Curie Action no.836355,project MitoQuant.Open access funding provided by UiT The Arctic University of Norway(incl University Hospital of North Norway).
文摘In 1934,Frits Zernike demonstrated that it is possible to exploit the sample’s refractive index to obtain superior contrast images of biological cells.The refractive index contrast of a cell surrounded by media yields a change in the phase and intensity of the transmitted light wave.This change can be due to either scattering or absorption caused by the sample.Most cells are transparent at visible wavelengths,which means the imaginary component of their complex refractive index,also known as extinction coefficient k,is close to zero.Here,we explore the use of c-band ultra-violet(UVC)light for high-contrast high-resolution label-free microscopy,as k is naturally substantially higher in the UVC than at visible wavelengths.Using differential phase contrast illumination and associated processing,we achieve a 7-to 300-fold improvement in contrast compared to visible-wavelength and UVA differential interference contrast microscopy or holotomography,and quantify the extinction coefficient distribution within liver sinusoidal endothelial cells.With a resolution down to 215 nm,we are,for the first time in a far-field label-free method,able to image individual fenestrations within their sieve plates which normally requires electron or fluorescence superresolution microscopy.UVC illumination also matches the excitation peak of intrinsically fluorescent proteins and amino acids and thus allows us to utilize autofluorescence as an independent imaging modality on the same setup.
基金a grant from the Research Fund for projects of Hubei provincial Health Department (No.JX4B56)the National Natural Science Foundation of China (No.81370942).
文摘Background:Owing to the multifactorial nature of the pathogenesis of diabetic peripheral neuropathy (DPN),conventional drug therapies have not been effective.The application of stem cells transplantation may be useful for the treatment of DPN.This study was designed to assess the safety and therapeutic effects of autologous bone marrow mononuclear cells (BMMNCs) transplantation on the treatment of refractory DPN.Methods:One hundred and sixty-eight patients with refractory DPN were recruited and enrolled in the study.They received intramuscular injection of BMMNCs and followed at 1,3,6,12,18,24,and 36 months after the transplantation.Clinical data,Toronto Clinical Scoring System (TCSS),and nerve conduction studies (NCSs) were compared before and after the transplantation.Results:The signs and symptoms of neuropathy were significantly improved after BMMNCs transplantation.The values of the TCSS scores at 1 month (9.68 ± 2.49 vs.12.55 ± 2.19,P<0.001) and 3 months (8.47 ± 2.39 vs.12.55 ± 2.19,P<0.001) after the treatment reduced significantly compared with the baseline value.This decrement remained persistent until the end of the study.The conduction velocity and action potential and sensory nerves were significantly improved after transplantation (3 and 12 months after the treatment vs.the baseline:motor nerve conduction velocity,40.24 ± 2.80 and 41.00 ± 2.22 m/s vs.38.21 ± 2.28 m/s,P<0.001;sensory nerve conduction velocity,36.96 ± 2.26 and 39.15 ± 2.61 m/s vs.40.41 ± 2.22 m/s,P<0.001;compound muscle action potential,4.67 ± 1.05 and 5.50 ± 1.20 μV vs.5.68 ± 1.08 μV,P<0.001;sensory nerve action potential,4.29 ± 0.99 and 5.14 ± 1.26 μV vs.5.41 ± 1.14 μV,P<0.001).No adverse event associated with the treatment was observed during the follow-up period.Conclusions:Autologous transplantation of BMMNCs may be an effective and promising therapeutic strategy for the treatment of refractory DPN.
文摘Background：Hyperglycemia on admission has been found to elevate risk for mortality and adverse clinical events after acute myocardial infarction （AMI）,but there are evidences that the relationship of blood glucose and mortality may differ between diabetic and nondiabetic patients.Prior studies in China have provided mixed results and are limited by statistical power.Here,we used data from a large,nationally representative sample of patients hospitalized with AMI in China in 2001,2006,and 2011 to assess if admission glucose is of prognostic value in China and if this relationship differs depending on the presence or absence of diabetes.Methods：Using a nationally representative sample of patients with AMI in China in 2001,2006,and 2011,we categorized patients according to their glucose levels at admission （〈3.9,3.9-7.7,7.8-11.0,and ≥11.1 mmol/L） and compared in-hospital mortality across these admission glucose categories,stratified by diabetes status.Among diabetic and nondiabetic patients,separately,we employed logistic regression to assess the differences in outcomes across admission glucose levels while adjusting for the same covariates.Results：Compared to patients with euglycemia （5.8%）,patients with moderate hyperglycemia （13.1%,odds ratio [OR] =2.44,95% confidence interval [CI,2.08-2.86]）,severe hyperglycemia （21.5%,OR =4.42,95% CI [3.78-5.18]）,and hypoglycemia （13.8%,OR =2.59,95% CI [1.68-4.00]）,all had higher crude in-hospital mortality after AMI regardless of the presence of recognized diabetes mellitus.After adjustment for patients＆#39; characteristics and clinical status,however,the relationship between admission glucose and in-hospital mortality was different for diabetic and nondiabetic patients （P for interaction =0.045）.Among diabetic patients,hypoglycemia （OR =3.02,95% CI [1.20-7.63]）,moderate hyperglycemia （OR =1.75,95% CI [1.04-2.92]）,and severe hyperglycemia （OR =2.97,95% CI [1.87-4.71]） remained associated with elevated risk for mortality,but among nondiabetic patients,only patients with moderate hyperglycemia （OR =2.34,95% CI [1.93-2.84]） and severe hyperglycemia （OR =3.92,95% CI [3.04-5.04]） were at elevated mortality risk and not hypoglycemia （OR =1.12,95% CI [0.60-2.08]）.This relationship was consistent across different study years （P for interaction =0.900）.Conclusions：The relationship between admission glucose and in-hospital mortality differs for diabetic and nondiabetic patients.Hypoglycemia was a bad prognostic marker among diabetic patients alone.The study results could be used to guide risk assessment among AMI patients using admission glucose.Trial Registration：www.clinicaltrials.gov,NCT01624883;https：// clinicaltrials.gov/ct2/show/NCT01624883.
