Objective:To investigate the diagnostic value of the monocyte-to-large-platelet ratio(MLPR),neutrophil-to-lymphocyte ratio(NLR),and red blood cell distribution width(RDW)for pulmonary embolism(PE)in patients with acut...Objective:To investigate the diagnostic value of the monocyte-to-large-platelet ratio(MLPR),neutrophil-to-lymphocyte ratio(NLR),and red blood cell distribution width(RDW)for pulmonary embolism(PE)in patients with acute exacerbation of chronic obstructive pulmonary disease(AECOPD).Methods:A total of 60 elderly AECOPD patients were enrolled and divided into embolus group(12 cases)and thrombus group(48 cases)according to whether they were combined with pulmonary embolism and the MLPR,NLR,and RDW values of the two groups were determined respectively.Results:The patients in the two groups had different degrees of vascular structural and functional abnormalities,and the MLPR,NLR,and RDW in the embolus group were significantly higher than those in the thrombus group(P<0.05);while the differences in NLR and RDW between the two groups were not significant.Conclusion:MLPR,NLR,and RDW can provide an objective basis for assessing PE in elderly AECOPD patients.展开更多
[Objectives]To observe the effects of daphnetin on mastitis induced by Staphylococcus aureus in mice.[Methods]18 postpartum ICR female mice were used to establish mastitis animal model,and were randomly divided into t...[Objectives]To observe the effects of daphnetin on mastitis induced by Staphylococcus aureus in mice.[Methods]18 postpartum ICR female mice were used to establish mastitis animal model,and were randomly divided into three groups(A,B,and C)with 6 mice in each group.Group A:blank control group;group B:S.Aureus model group;group C:S.Aureus model+daphnetin group.The experimental groups were injected 1 mL of 1.0×104 CFU/100μL of S.aureus of along the nipple catheter.The suspension was placed in the 3 rd and 4 th pairs of mammary glands,and the control group was injected with the same dose of normal saline.On the second day after infection,the rats in group A,B and C were given drugs by gavage,while the rats in group A and B were given normal saline and the rats in group C were given daphnetin once a day for 6 consecutive days.Blood samples were collected from living eyeballs,and blood cells were analyzed by automatic flow cytometer after anticoagulation.[Results]The NLR and Systemie Immune Inflammati-on Index(SII)in the blood of mastitis mice induced by S.aureus were significantly higher than those in the control group(P<0.01),suggesting that neutrophil to lymphocyte ratio(NLR)and SII can be used as diagnostic indicators of mastitis,and the levels of NLR and SII decreased significantly after daphnetin intervention.[Conclusions]NLR and SII showed high levels in mastitis mice,which are valuable for the diagnosis of mastitis and the evaluation of its prognosis.After the intervention of daphnetin,both of them decreased significantly,indicating that daphnetin has a good prognosis trend in mastitis mice induced by S.aureus.展开更多
Background and aims:Hepatitis B virus(HBV)infection is a major public health issue worldwide as it may cause serious liver diseases such as cirrhosis and hepatocellular carcinoma(HCC).Ruling out cirrhosis is important...Background and aims:Hepatitis B virus(HBV)infection is a major public health issue worldwide as it may cause serious liver diseases such as cirrhosis and hepatocellular carcinoma(HCC).Ruling out cirrhosis is important when treating chronic hepatitis B(CHB).The aim of this study was to compare the performance of the aspartate aminotransferase-to-platelet ratio index(APRI),fibrosis score based on four factors(FIB-4),and red cell volume distribution width-to-platelet ratio(RPR)in diagnosing liver fibrosis stages and to identify new cut-off values to rule out cirrhosis.Methods:Between 2005 and 2020,2182 eligible individuals who underwent liver biopsy were randomly assigned to derivation and validation cohorts in a 6:4 ratio.A grid search was applied to identify optimal cut-off values with a sensitivity of>90% and a negative predictive value(NPV)of at least 95%.Results:Overall,1309 individuals(175 patients with cirrhosis)were included in the derivation dataset,and 873(117 patients with cirrhosis)were included in the validation cohort.The area under the receiver operating characteristic curve of RPR for diagnosing cirrhosis was 0.821,which was comparable to that of APRI(0.818,P=0.7905)and FIB-4(0.803,P=0.2395).When applying an RPR of 0.06,cirrhosis was correctly identified with a sensitivity of 93.1% and an NPV of 97.1%,while it misclassified 12 of 175(6.9%)patients in the derivation cohort.In the validation cohort,RPR had a sensitivity and NPV of 97.4% and 99.0%,respectively,and only misclassified 3 of 117(2.6%)patients.Subgroup analysis indicated that the new RPR cut-off value performed more consistently than that of APRI and FIB-4 in all subgroups.Conclusion:A recently established cut-off value for RPR(≤0.06)was validated and was more effective than APRI and FIB-4 in excluding patients with cirrhosis due to a higher sensitivity and NPV and a lower misclassification rate.This simple and dependable test could have significant clinical implications in identifying patients who require monitoring for portal hypertensio展开更多
目的探讨红细胞平均体积(MCV)和红细胞分布宽度(RDW)对XN-3000血液分析仪电阻抗法(PLT-I)和核酸染色法(PLT-F)低值血小板计数的影响。方法采用Sysmex-XN3000血液分析仪对68例低值血小板患者(分四组:红细胞MCV≥70 f L、MCV<60 f L、6...目的探讨红细胞平均体积(MCV)和红细胞分布宽度(RDW)对XN-3000血液分析仪电阻抗法(PLT-I)和核酸染色法(PLT-F)低值血小板计数的影响。方法采用Sysmex-XN3000血液分析仪对68例低值血小板患者(分四组:红细胞MCV≥70 f L、MCV<60 f L、60 f LMCV<70 f L而RDW<0.2、60 f LMCV<70 f L而RDW>0.2)EDTA抗凝血分别用PLT-I法和PLT-F法进行血小板计数,同时用Beckman Coulter FC500流式细胞仪(免疫法)计数,以免疫法为参考方法进行比较分析。结果 PLT-F法、PLT-I法与免疫法的相关系数r分别为0.931、0.808,PLT-F法的相关性明显优于PLT-I法;当红细胞MCV≥70 f L、60 f L≤MCV<70 f L而RDW<0.2时,PLT-I法与免疫法比较血小板计数,差异无统计学意义(P>0.05);当红细胞MCV<60 f L、60 f L≤MCV<70 f L而RDW>0.2时,PLT-I法与免疫法比较血小板计数,差异有统计学意义(P<0.05);不同组在PLT-F法与免疫法比较差异均无统计学意义(P>0.05)。结论 PLT-F法与免疫法有良好的相关性,PLT-I法对低值血小板计数的准确性有较大影响,当MCV<60 f L或者60 f L≤MCV<70 f L而RDW>0.2时,血小板应该采用流式细胞仪或PLT-F法检测以获得更为准确的数据。展开更多
文摘Objective:To investigate the diagnostic value of the monocyte-to-large-platelet ratio(MLPR),neutrophil-to-lymphocyte ratio(NLR),and red blood cell distribution width(RDW)for pulmonary embolism(PE)in patients with acute exacerbation of chronic obstructive pulmonary disease(AECOPD).Methods:A total of 60 elderly AECOPD patients were enrolled and divided into embolus group(12 cases)and thrombus group(48 cases)according to whether they were combined with pulmonary embolism and the MLPR,NLR,and RDW values of the two groups were determined respectively.Results:The patients in the two groups had different degrees of vascular structural and functional abnormalities,and the MLPR,NLR,and RDW in the embolus group were significantly higher than those in the thrombus group(P<0.05);while the differences in NLR and RDW between the two groups were not significant.Conclusion:MLPR,NLR,and RDW can provide an objective basis for assessing PE in elderly AECOPD patients.
基金Supported by Project of Innovation and Entrepreneurship Training Program for College Students in Guangxi Zhuang Autonomous Region in 2022(S202210599060)Basic Ability Improvement Project for Young and Middle-aged Teachers in Guangxi Zhuang Autonomous Region in 2020(2020KY13027)Project of Scientific Research and Technological Development Plan of Baise City in 2020(Encyclopedia[2020]No.47).
文摘[Objectives]To observe the effects of daphnetin on mastitis induced by Staphylococcus aureus in mice.[Methods]18 postpartum ICR female mice were used to establish mastitis animal model,and were randomly divided into three groups(A,B,and C)with 6 mice in each group.Group A:blank control group;group B:S.Aureus model group;group C:S.Aureus model+daphnetin group.The experimental groups were injected 1 mL of 1.0×104 CFU/100μL of S.aureus of along the nipple catheter.The suspension was placed in the 3 rd and 4 th pairs of mammary glands,and the control group was injected with the same dose of normal saline.On the second day after infection,the rats in group A,B and C were given drugs by gavage,while the rats in group A and B were given normal saline and the rats in group C were given daphnetin once a day for 6 consecutive days.Blood samples were collected from living eyeballs,and blood cells were analyzed by automatic flow cytometer after anticoagulation.[Results]The NLR and Systemie Immune Inflammati-on Index(SII)in the blood of mastitis mice induced by S.aureus were significantly higher than those in the control group(P<0.01),suggesting that neutrophil to lymphocyte ratio(NLR)and SII can be used as diagnostic indicators of mastitis,and the levels of NLR and SII decreased significantly after daphnetin intervention.[Conclusions]NLR and SII showed high levels in mastitis mice,which are valuable for the diagnosis of mastitis and the evaluation of its prognosis.After the intervention of daphnetin,both of them decreased significantly,indicating that daphnetin has a good prognosis trend in mastitis mice induced by S.aureus.
基金supported by grants from the Natural Science Foundation of Guangdong Province for Distinguished Young Scholar(2022B1515020024)the National Natural Science Foundation of China(82070574)the Natural Science Foundation Team Project of Guangdong Province(2018B030312009).
文摘Background and aims:Hepatitis B virus(HBV)infection is a major public health issue worldwide as it may cause serious liver diseases such as cirrhosis and hepatocellular carcinoma(HCC).Ruling out cirrhosis is important when treating chronic hepatitis B(CHB).The aim of this study was to compare the performance of the aspartate aminotransferase-to-platelet ratio index(APRI),fibrosis score based on four factors(FIB-4),and red cell volume distribution width-to-platelet ratio(RPR)in diagnosing liver fibrosis stages and to identify new cut-off values to rule out cirrhosis.Methods:Between 2005 and 2020,2182 eligible individuals who underwent liver biopsy were randomly assigned to derivation and validation cohorts in a 6:4 ratio.A grid search was applied to identify optimal cut-off values with a sensitivity of>90% and a negative predictive value(NPV)of at least 95%.Results:Overall,1309 individuals(175 patients with cirrhosis)were included in the derivation dataset,and 873(117 patients with cirrhosis)were included in the validation cohort.The area under the receiver operating characteristic curve of RPR for diagnosing cirrhosis was 0.821,which was comparable to that of APRI(0.818,P=0.7905)and FIB-4(0.803,P=0.2395).When applying an RPR of 0.06,cirrhosis was correctly identified with a sensitivity of 93.1% and an NPV of 97.1%,while it misclassified 12 of 175(6.9%)patients in the derivation cohort.In the validation cohort,RPR had a sensitivity and NPV of 97.4% and 99.0%,respectively,and only misclassified 3 of 117(2.6%)patients.Subgroup analysis indicated that the new RPR cut-off value performed more consistently than that of APRI and FIB-4 in all subgroups.Conclusion:A recently established cut-off value for RPR(≤0.06)was validated and was more effective than APRI and FIB-4 in excluding patients with cirrhosis due to a higher sensitivity and NPV and a lower misclassification rate.This simple and dependable test could have significant clinical implications in identifying patients who require monitoring for portal hypertensio
文摘目的探讨红细胞平均体积(MCV)和红细胞分布宽度(RDW)对XN-3000血液分析仪电阻抗法(PLT-I)和核酸染色法(PLT-F)低值血小板计数的影响。方法采用Sysmex-XN3000血液分析仪对68例低值血小板患者(分四组:红细胞MCV≥70 f L、MCV<60 f L、60 f LMCV<70 f L而RDW<0.2、60 f LMCV<70 f L而RDW>0.2)EDTA抗凝血分别用PLT-I法和PLT-F法进行血小板计数,同时用Beckman Coulter FC500流式细胞仪(免疫法)计数,以免疫法为参考方法进行比较分析。结果 PLT-F法、PLT-I法与免疫法的相关系数r分别为0.931、0.808,PLT-F法的相关性明显优于PLT-I法;当红细胞MCV≥70 f L、60 f L≤MCV<70 f L而RDW<0.2时,PLT-I法与免疫法比较血小板计数,差异无统计学意义(P>0.05);当红细胞MCV<60 f L、60 f L≤MCV<70 f L而RDW>0.2时,PLT-I法与免疫法比较血小板计数,差异有统计学意义(P<0.05);不同组在PLT-F法与免疫法比较差异均无统计学意义(P>0.05)。结论 PLT-F法与免疫法有良好的相关性,PLT-I法对低值血小板计数的准确性有较大影响,当MCV<60 f L或者60 f L≤MCV<70 f L而RDW>0.2时,血小板应该采用流式细胞仪或PLT-F法检测以获得更为准确的数据。
