AIM: To investigate the pooled prevalence of diabetic retinopathy(DR), proliferative DR(PDR) and nonproliferative DR(NPDR) in Asian type 2 diabetes mellitus(T2 DM) patients. METHODS: We performed a systematic search o...AIM: To investigate the pooled prevalence of diabetic retinopathy(DR), proliferative DR(PDR) and nonproliferative DR(NPDR) in Asian type 2 diabetes mellitus(T2 DM) patients. METHODS: We performed a systematic search online search using PubMed, EMBASE, Web of Science, the Cochrane Library, and China WeiPu Library to identify eligible studies that reported the prevalence of DR, PDR and NPDR in Asian T2 DM patients. Effect size(ES) with 95% confidence interval(CI) was used to evaluate the prevalence of DR, PDR and NPDR in Asian T2 DM patients, respectively. RESULTS: There were 41 references and 48 995 T2 DM patients involved in this study. The prevalence of DR, PDR, and NPDR was 28%, 6%, and 27% in T2 DM patients, respectively; while the prevalence of PDR and NPDR in DR patients was 17% and 83%, respectively. Subgroup analysis showed that prevalence of DR in T2 DM patients from Singaporean, Indian, South Korean, Malaysian, Asian, and Chinese was 33%, 42%, 16%, 35%, 21% and 25%, respectively. In T2 DM patients with NPDR from Indian, South Korean, Malaysian, Asian, Chinese, higher prevalence was found than that in PDR patients(45% vs 17%, 13% vs 3%, 30% vs 5%, 23% vs 2% and 22% vs 3%), as well as in DR patients(74% vs 26%, 81% vs 19%, 86% vs 14%, 92% vs 8% and 85% vs 15%). The prevalence of PDR in T2 DM from India was higher than patients fromother locations of Asia, and the same results were also observed in NPDR patients. CONCLUSION: In either T2 DM Asian patients or DR patients, NPDR is more common than PDR. Based on our results, we should pay more attention to NPDR screening and management in T2 DM patients, and we also recommend suitable interventions to prevent its progression.展开更多
AIM: To compare serum Lutein and Zeaxanthin (L/Z) concentrations between patients with nonproliferative diabetic retinopathy (NDR) and normal subjects,and to explore the effect of L/Z supplementation on serum L/Z leve...AIM: To compare serum Lutein and Zeaxanthin (L/Z) concentrations between patients with nonproliferative diabetic retinopathy (NDR) and normal subjects,and to explore the effect of L/Z supplementation on serum L/Z level and visual function in NDR patients METHODS: Subjects were divided into three groups: 30 NDR patients supplied with Lutein 6mg/d and Zeaxanthin 0.5mg/d for three months (DR Group),30 NDR patients without L/Z supplementation (DR Control Group) and 30 normal subjects (Control Group).Serum L/Z concentrations were measured by liquid high-resolution chromatography (HPLC).Visual acuity was recorded at baseline,1 month,2 months and 3 months post initial supplementation.Serum L/Z concentration were measured at baseline,1 month and 2 months post initial supplementation.Contrast sensitivity (CS) and fovea thickness were recorded at baseline and 3 months post initial supplementation.RESULTS: Mean serum lutein concentrations in DR group were 0.0686±0.0296μg/mL and zeaxanthin concentration was 0.0137±0.0059μg/mL.The L/Z level of DR group was significantly lower compared to the control group( lutein: 0.2302±0.1308μg/mL,zeaxanthin: 0.0456±0.0266μg/m,P = 0.000).The concentration of lutein and zeaxanthin in the DR control group at base line was 0.0714±0.0357μg/mL and 0.0119±0.0072μg/mL,respectively.There was no significant change of L/Z concentration in the DR control group during the study.Serum L/Z concentrations of DR group increased significantly after supplementation(F=109.124,P=0.000;F=219.207,P=0.000).Visual acuity improved significantly after medication.Compared with pre-medication,the average CS values of 1.5cpd,3cpd and 6cpd after three months increased significantly (P =0.030,0.013,0.008) and the foveal thickness decreased.(P =0.05) CONCLUSION: Serum L/Z concentrations in DR patients are significantly lower than those in normal subjects,and L/Z intake can improve the visual acuity,CS and macular edema in DR patients,suggesting that L/Z supplementation might be targeted as potential potential 展开更多
Objective:To evaluate the efficacy and safety of the method of Yishen Huoxue in the intervention of nonproliferative diabetic retinopathy(NPDR)by Meta analysis and explore the medication regularity of Chinese Medicine...Objective:To evaluate the efficacy and safety of the method of Yishen Huoxue in the intervention of nonproliferative diabetic retinopathy(NPDR)by Meta analysis and explore the medication regularity of Chinese Medicine(TCM)based on data mining.Methods:The related literature of TCM in the treatment of NPDR published in CNKI,VIP,WF,PubMed,the Cochrane Library,SinoMed,Embase were collected.The quality of the included literature was evaluated with reference to the Cochrane System Evaluators'Handbook,and statistical analysis was performed by applying Revman 5.4.1 software.After normalization of the Chinese medicine names,association rule analysis was performed by using SPSS Modeler 18,and then Cytoscape was used to produce complex network diagrams.Results:20 RCTs were included.Meta-analysis results showed that the method of Yishen Huoxue or Yishen Huoxue combined with western medicine were better than the control group in improving the total clinical efficiency[RR=1.21,95%CI(1.16,1.27),P<0.00001],TCM symptom efficacy[RR=1.28,95%CI(1.18,1.39),P<0.00001],and visual acuity[MD=0.11,95%CI(0.05,0.17),P=0.0001],HDL-C[MD=0.14,95%CI(0.03,0.25),P=0.02];reducing the number of fundus hemangiomas[MD=-3.51,95%CI(-5.73,-1.28),P=0.002],hemorrhagic spot area[MD=-0.70,95%CI(-0.95,-0.46),P<0.00001],CMT[MD=-35.31,95%CI(-55.47,-15.14),P=0.0006],FBG[MD=-0.39,95%CI(-0.72,-0.05),P=0.02],LDL-C[MD=-0.36,95%CI(-0.64,-0.08),P=0.01],whole high blood viscosity[MD=-0.43,95%CI(-0.75,-0.12),P=0.006],plasma viscosity[MD=-0.36,95%CI(-0.67,-0.06),P=0.02]and fibrinogen[MD=-0.50,95%CI(-0.81,-0.19),P=0.002].The differences were statistically significant.The 20 recipes entered involved a total of 70 herbal medicines.It is analyzed that the high-frequency drugs and the core drugsare gou qi,san qi,dan shen,haung qi,sheng di huang,et al.The association rule analysis summarizes the commonly used pairs including:sheng di huang-san qi,sheng di huang-gou qi,et al.Conclusions:Compared with western medicine treatment alone,the method of Yishen Huoxue or Yishen Huoxue展开更多
AIM: To assess efficacy of intravitreal conbercept(IVC) injection in combination with panretinal photocoagulation(PRP) vs PRP alone in patients with severe nonproliferative diabetic retinopathy(SNPDR) without macular ...AIM: To assess efficacy of intravitreal conbercept(IVC) injection in combination with panretinal photocoagulation(PRP) vs PRP alone in patients with severe nonproliferative diabetic retinopathy(SNPDR) without macular edema(ME).METHODS: Forty-eight patients with SNPDR without ME(56 eyes) were divided into the PRP group and IVC+PRP group(the pulse group) in this retrospective clinical study. Conbercept was intravitreally administered to patients in the pulse group 1 wk before treatment with PRP and followed up for 1, 3, and 6 mo. The best-corrected visual acuity(BCVA, log MAR), center foveal thickness(CFT), visual acuity(VA) improvement, and adverse reactions were compared between groups.RESULTS: In the PRP group, the BCVA reduced at 1 and 3 mo before improving at 6 mo. In the pulse group, baseline BCVA decreased continuously at 1 mo, increased at 3 and 6 mo. BCVA in the pulse group was better than that in the PRP group at 1, 3, and 6 mo. There was an increase in CFT in the PRP group during follow-up compared with baseline. In the pulse group, CFT was increased at 1 mo relative to baseline, steadily decreased to the baseline level at 3 and 6 mo. There was a more significant reduction in CFT in the pulse group during follow-up compared with the PRP group. The effective rates of VA in the PRP and the pulse groups were 81.48% and 100%, respectively. CONCLUSION: As PRP pretreatment, a single dose of IVC administration has beneficial effects for preventing PRPinduced foveal thickening and increasing VA in patients with SNPDR without ME.展开更多
Diabetes mellitus(DM)is a noncommunicable disease reaching epidemic proportions around the world.It affects younger individuals,including women of childbearing age.Diabetes can cause diabetic retinopathy(DR),which is ...Diabetes mellitus(DM)is a noncommunicable disease reaching epidemic proportions around the world.It affects younger individuals,including women of childbearing age.Diabetes can cause diabetic retinopathy(DR),which is potentially sight threatening when severe nonproliferative DR(NPDR),proliferative DR(PDR),or sight-threatening diabetic macular oedema(STDME)develops.Pregnancy is an independent risk factor for the progression of DR.Baseline DR at the onset of pregnancy is an important indicator of progression,with up to 10% of women with baseline NPDR progressing to PDR.Progression to sight-threatening DR(STDR)during pregnancy causes distress to the patient and often necessitates ocular treatment,which may have a systemic effect.Management includes prepregnancy counselling and,when possible,conventional treatment prior to pregnancy.During pregnancy,closer follow-up is required for those with a long duration of DM,poor baseline control of blood sugar and blood pressure,and worse DR,as these are risk factors for progression to STDR.Conventional treatment with anti-vascular endothelial growth factor agents for STDME can potentially lead to foetal loss.Treatment with laser photocoagulation may be preferred,and surgery under general anaesthesia should be avoided.This review provides a management plan for STDR from the perspective of practising ophthalmologists.A review of strategies for maintaining the eyesight of diabetic women with STDR with emphasis on prepregnancy counselling and planning,monitoring and safe treatment during pregnancy,and management of complications is presented.展开更多
Diabetes is associated with many complications that could lead to death.Diabetic retinopathy,a complication of diabetes,is difficult to diagnose and may lead to vision loss.Visual identification of micro features in f...Diabetes is associated with many complications that could lead to death.Diabetic retinopathy,a complication of diabetes,is difficult to diagnose and may lead to vision loss.Visual identification of micro features in fundus images for the diagnosis of DR is a complex and challenging task for clinicians.Because clinical testing involves complex procedures and is timeconsuming,an automated system would help ophthalmologists to detect DR and administer treatment in a timelymanner so that blindness can be avoided.Previous research works have focused on image processing algorithms,or neural networks,or signal processing techniques alone to detect diabetic retinopathy.Therefore,we aimed to develop a novel integrated approach to increase the accuracy of detection.This approach utilized both convolutional neural networks and signal processing techniques.In this proposed method,the biological electro retinogram(ERG)sensor network(BSN)and deep convolution neural network(DCNN)were developed to detect and classify DR.In the BSN system,electrodes were used to record ERGsignal,which was preprocessed to be noise-free.Processing was performed in the frequency domain by the application of fast Fourier transform(FFT)and mel frequency cepstral coefficients(MFCCs)were extracted.Artificial neural network(ANN)classifier was used to classify the signals of eyes with DR and normal eye.Additionally,fundus images were captured using a fundus camera,and these were used as the input for DCNN-based analysis.The DCNN consisted of many layers to facilitate the extraction of features and classification of fundus images into normal images,non-proliferative DR(NPDR)or earlystage DR images,and proliferative DR(PDR)or advanced-stage DR images.Furthermore,it classifiedNPDRaccording tomicroaneurysms,hemorrhages,cotton wool spots,and exudates,and the presence of new blood vessels indicated PDR.The accuracy,sensitivity,and specificity of the ANNclassifier were found to be 94%,95%,and 93%,respectively.Both the accuracy rate and sensitivity rate of theDCN展开更多
目的观察川芎嗪治疗非增殖期糖尿病视网膜病变(NPDR)的临床疗效及其对血清低氧诱导因子-1(HIF-1)、血管内皮生长因子(VEGF)表达水平的影响。方法将60例NPDR患者(120只眼)随机分为对照组30例(60只眼)和试验组30例(60只眼)。对照组予以调...目的观察川芎嗪治疗非增殖期糖尿病视网膜病变(NPDR)的临床疗效及其对血清低氧诱导因子-1(HIF-1)、血管内皮生长因子(VEGF)表达水平的影响。方法将60例NPDR患者(120只眼)随机分为对照组30例(60只眼)和试验组30例(60只眼)。对照组予以调节血糖、饮食控制、运动疗法等常规治疗;试验组在对照组基础上,加用川芎嗪0.24 g+0.9%氯化钠250 m L静脉滴注qd。2组疗程均为2周。比较2组的临床疗效和血清HIF-1、VEGF的表达以及不良反应发生率。结果治疗后,试验组的临床总有效率96.67%显著优于对照组83.33%(P<0.05)。试验组患者血清HIF-1、VEGF的表达(25.26±10.14),(88.36±16.54)ng·L-1明显低于对照组(37.59±10.26),(102.40±21.35)ng·L-1(P<0.05)。2组患者在治疗期间均未出现明显不良反应。结论川芎嗪对NPDR有较好的临床疗效,其作用机制可能与下调HIF-1、VEGF的表达有关。展开更多
文摘AIM: To investigate the pooled prevalence of diabetic retinopathy(DR), proliferative DR(PDR) and nonproliferative DR(NPDR) in Asian type 2 diabetes mellitus(T2 DM) patients. METHODS: We performed a systematic search online search using PubMed, EMBASE, Web of Science, the Cochrane Library, and China WeiPu Library to identify eligible studies that reported the prevalence of DR, PDR and NPDR in Asian T2 DM patients. Effect size(ES) with 95% confidence interval(CI) was used to evaluate the prevalence of DR, PDR and NPDR in Asian T2 DM patients, respectively. RESULTS: There were 41 references and 48 995 T2 DM patients involved in this study. The prevalence of DR, PDR, and NPDR was 28%, 6%, and 27% in T2 DM patients, respectively; while the prevalence of PDR and NPDR in DR patients was 17% and 83%, respectively. Subgroup analysis showed that prevalence of DR in T2 DM patients from Singaporean, Indian, South Korean, Malaysian, Asian, and Chinese was 33%, 42%, 16%, 35%, 21% and 25%, respectively. In T2 DM patients with NPDR from Indian, South Korean, Malaysian, Asian, Chinese, higher prevalence was found than that in PDR patients(45% vs 17%, 13% vs 3%, 30% vs 5%, 23% vs 2% and 22% vs 3%), as well as in DR patients(74% vs 26%, 81% vs 19%, 86% vs 14%, 92% vs 8% and 85% vs 15%). The prevalence of PDR in T2 DM from India was higher than patients fromother locations of Asia, and the same results were also observed in NPDR patients. CONCLUSION: In either T2 DM Asian patients or DR patients, NPDR is more common than PDR. Based on our results, we should pay more attention to NPDR screening and management in T2 DM patients, and we also recommend suitable interventions to prevent its progression.
文摘AIM: To compare serum Lutein and Zeaxanthin (L/Z) concentrations between patients with nonproliferative diabetic retinopathy (NDR) and normal subjects,and to explore the effect of L/Z supplementation on serum L/Z level and visual function in NDR patients METHODS: Subjects were divided into three groups: 30 NDR patients supplied with Lutein 6mg/d and Zeaxanthin 0.5mg/d for three months (DR Group),30 NDR patients without L/Z supplementation (DR Control Group) and 30 normal subjects (Control Group).Serum L/Z concentrations were measured by liquid high-resolution chromatography (HPLC).Visual acuity was recorded at baseline,1 month,2 months and 3 months post initial supplementation.Serum L/Z concentration were measured at baseline,1 month and 2 months post initial supplementation.Contrast sensitivity (CS) and fovea thickness were recorded at baseline and 3 months post initial supplementation.RESULTS: Mean serum lutein concentrations in DR group were 0.0686±0.0296μg/mL and zeaxanthin concentration was 0.0137±0.0059μg/mL.The L/Z level of DR group was significantly lower compared to the control group( lutein: 0.2302±0.1308μg/mL,zeaxanthin: 0.0456±0.0266μg/m,P = 0.000).The concentration of lutein and zeaxanthin in the DR control group at base line was 0.0714±0.0357μg/mL and 0.0119±0.0072μg/mL,respectively.There was no significant change of L/Z concentration in the DR control group during the study.Serum L/Z concentrations of DR group increased significantly after supplementation(F=109.124,P=0.000;F=219.207,P=0.000).Visual acuity improved significantly after medication.Compared with pre-medication,the average CS values of 1.5cpd,3cpd and 6cpd after three months increased significantly (P =0.030,0.013,0.008) and the foveal thickness decreased.(P =0.05) CONCLUSION: Serum L/Z concentrations in DR patients are significantly lower than those in normal subjects,and L/Z intake can improve the visual acuity,CS and macular edema in DR patients,suggesting that L/Z supplementation might be targeted as potential potential
基金National Natural Science Foundation of China (No.81874494)Capital Health Development Research Project (No.2020-2-41822020-3-4184)Science and Technology Innovation Project of China Academy of Chinese Medical Sciences (No.CI2021A02604)。
文摘Objective:To evaluate the efficacy and safety of the method of Yishen Huoxue in the intervention of nonproliferative diabetic retinopathy(NPDR)by Meta analysis and explore the medication regularity of Chinese Medicine(TCM)based on data mining.Methods:The related literature of TCM in the treatment of NPDR published in CNKI,VIP,WF,PubMed,the Cochrane Library,SinoMed,Embase were collected.The quality of the included literature was evaluated with reference to the Cochrane System Evaluators'Handbook,and statistical analysis was performed by applying Revman 5.4.1 software.After normalization of the Chinese medicine names,association rule analysis was performed by using SPSS Modeler 18,and then Cytoscape was used to produce complex network diagrams.Results:20 RCTs were included.Meta-analysis results showed that the method of Yishen Huoxue or Yishen Huoxue combined with western medicine were better than the control group in improving the total clinical efficiency[RR=1.21,95%CI(1.16,1.27),P<0.00001],TCM symptom efficacy[RR=1.28,95%CI(1.18,1.39),P<0.00001],and visual acuity[MD=0.11,95%CI(0.05,0.17),P=0.0001],HDL-C[MD=0.14,95%CI(0.03,0.25),P=0.02];reducing the number of fundus hemangiomas[MD=-3.51,95%CI(-5.73,-1.28),P=0.002],hemorrhagic spot area[MD=-0.70,95%CI(-0.95,-0.46),P<0.00001],CMT[MD=-35.31,95%CI(-55.47,-15.14),P=0.0006],FBG[MD=-0.39,95%CI(-0.72,-0.05),P=0.02],LDL-C[MD=-0.36,95%CI(-0.64,-0.08),P=0.01],whole high blood viscosity[MD=-0.43,95%CI(-0.75,-0.12),P=0.006],plasma viscosity[MD=-0.36,95%CI(-0.67,-0.06),P=0.02]and fibrinogen[MD=-0.50,95%CI(-0.81,-0.19),P=0.002].The differences were statistically significant.The 20 recipes entered involved a total of 70 herbal medicines.It is analyzed that the high-frequency drugs and the core drugsare gou qi,san qi,dan shen,haung qi,sheng di huang,et al.The association rule analysis summarizes the commonly used pairs including:sheng di huang-san qi,sheng di huang-gou qi,et al.Conclusions:Compared with western medicine treatment alone,the method of Yishen Huoxue or Yishen Huoxue
文摘AIM: To assess efficacy of intravitreal conbercept(IVC) injection in combination with panretinal photocoagulation(PRP) vs PRP alone in patients with severe nonproliferative diabetic retinopathy(SNPDR) without macular edema(ME).METHODS: Forty-eight patients with SNPDR without ME(56 eyes) were divided into the PRP group and IVC+PRP group(the pulse group) in this retrospective clinical study. Conbercept was intravitreally administered to patients in the pulse group 1 wk before treatment with PRP and followed up for 1, 3, and 6 mo. The best-corrected visual acuity(BCVA, log MAR), center foveal thickness(CFT), visual acuity(VA) improvement, and adverse reactions were compared between groups.RESULTS: In the PRP group, the BCVA reduced at 1 and 3 mo before improving at 6 mo. In the pulse group, baseline BCVA decreased continuously at 1 mo, increased at 3 and 6 mo. BCVA in the pulse group was better than that in the PRP group at 1, 3, and 6 mo. There was an increase in CFT in the PRP group during follow-up compared with baseline. In the pulse group, CFT was increased at 1 mo relative to baseline, steadily decreased to the baseline level at 3 and 6 mo. There was a more significant reduction in CFT in the pulse group during follow-up compared with the PRP group. The effective rates of VA in the PRP and the pulse groups were 81.48% and 100%, respectively. CONCLUSION: As PRP pretreatment, a single dose of IVC administration has beneficial effects for preventing PRPinduced foveal thickening and increasing VA in patients with SNPDR without ME.
基金National University of Malaysia,Bangi,Selangor,Malaysia for English Editing,No.GP-K009894(2015).
文摘Diabetes mellitus(DM)is a noncommunicable disease reaching epidemic proportions around the world.It affects younger individuals,including women of childbearing age.Diabetes can cause diabetic retinopathy(DR),which is potentially sight threatening when severe nonproliferative DR(NPDR),proliferative DR(PDR),or sight-threatening diabetic macular oedema(STDME)develops.Pregnancy is an independent risk factor for the progression of DR.Baseline DR at the onset of pregnancy is an important indicator of progression,with up to 10% of women with baseline NPDR progressing to PDR.Progression to sight-threatening DR(STDR)during pregnancy causes distress to the patient and often necessitates ocular treatment,which may have a systemic effect.Management includes prepregnancy counselling and,when possible,conventional treatment prior to pregnancy.During pregnancy,closer follow-up is required for those with a long duration of DM,poor baseline control of blood sugar and blood pressure,and worse DR,as these are risk factors for progression to STDR.Conventional treatment with anti-vascular endothelial growth factor agents for STDME can potentially lead to foetal loss.Treatment with laser photocoagulation may be preferred,and surgery under general anaesthesia should be avoided.This review provides a management plan for STDR from the perspective of practising ophthalmologists.A review of strategies for maintaining the eyesight of diabetic women with STDR with emphasis on prepregnancy counselling and planning,monitoring and safe treatment during pregnancy,and management of complications is presented.
文摘Diabetes is associated with many complications that could lead to death.Diabetic retinopathy,a complication of diabetes,is difficult to diagnose and may lead to vision loss.Visual identification of micro features in fundus images for the diagnosis of DR is a complex and challenging task for clinicians.Because clinical testing involves complex procedures and is timeconsuming,an automated system would help ophthalmologists to detect DR and administer treatment in a timelymanner so that blindness can be avoided.Previous research works have focused on image processing algorithms,or neural networks,or signal processing techniques alone to detect diabetic retinopathy.Therefore,we aimed to develop a novel integrated approach to increase the accuracy of detection.This approach utilized both convolutional neural networks and signal processing techniques.In this proposed method,the biological electro retinogram(ERG)sensor network(BSN)and deep convolution neural network(DCNN)were developed to detect and classify DR.In the BSN system,electrodes were used to record ERGsignal,which was preprocessed to be noise-free.Processing was performed in the frequency domain by the application of fast Fourier transform(FFT)and mel frequency cepstral coefficients(MFCCs)were extracted.Artificial neural network(ANN)classifier was used to classify the signals of eyes with DR and normal eye.Additionally,fundus images were captured using a fundus camera,and these were used as the input for DCNN-based analysis.The DCNN consisted of many layers to facilitate the extraction of features and classification of fundus images into normal images,non-proliferative DR(NPDR)or earlystage DR images,and proliferative DR(PDR)or advanced-stage DR images.Furthermore,it classifiedNPDRaccording tomicroaneurysms,hemorrhages,cotton wool spots,and exudates,and the presence of new blood vessels indicated PDR.The accuracy,sensitivity,and specificity of the ANNclassifier were found to be 94%,95%,and 93%,respectively.Both the accuracy rate and sensitivity rate of theDCN
文摘目的观察川芎嗪治疗非增殖期糖尿病视网膜病变(NPDR)的临床疗效及其对血清低氧诱导因子-1(HIF-1)、血管内皮生长因子(VEGF)表达水平的影响。方法将60例NPDR患者(120只眼)随机分为对照组30例(60只眼)和试验组30例(60只眼)。对照组予以调节血糖、饮食控制、运动疗法等常规治疗;试验组在对照组基础上,加用川芎嗪0.24 g+0.9%氯化钠250 m L静脉滴注qd。2组疗程均为2周。比较2组的临床疗效和血清HIF-1、VEGF的表达以及不良反应发生率。结果治疗后,试验组的临床总有效率96.67%显著优于对照组83.33%(P<0.05)。试验组患者血清HIF-1、VEGF的表达(25.26±10.14),(88.36±16.54)ng·L-1明显低于对照组(37.59±10.26),(102.40±21.35)ng·L-1(P<0.05)。2组患者在治疗期间均未出现明显不良反应。结论川芎嗪对NPDR有较好的临床疗效,其作用机制可能与下调HIF-1、VEGF的表达有关。