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About 15% of the world's population at child-bearing age suffer from infertility. After cancer and cardiovascular and cerebrovascular diseases, the infertility will become the third-largest intractable disease. Among the causes of infertility, male factors account for about half. As a main male factor, genetic factor has become the focus of reproductive research in recent years. Therefore, to formulate a corresponding diagnosis and treatment scheme for male infertility, accurate genetic testing is needed. It is an effective means to meet the demand of high fertility and solve the problem of population decline in current society.
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To evaluate the accuracy of heparin binding protein (HBP) in the diagnosis of adult sepsis by meta-analysis. Methods The retrospective, randomized controlled and prospective researches on the diagnosis of adult sepsis using HBP were reviewed by searching VIP network, China National Knowledge Infrastructure (CNKI), Wanfang database, PubMed, Embase and Web of Science from foundation to August 2018. The researches were selected according to inclusion and exclusion criteria, and QUADAS was used to evaluate the quality of eligible studies. Metadisc 14.0 was used to analyze the threshold effect, pool the estimation and do Meta regression analysis. Publication bias was assessed using Stata 12.0 with Deeks funnel plot. Results A total of 728 related literatures were searched and 14 studies were enrolled in this study with a total of 2 023 subjects, with 1 120 in sepsis group and 903 in non-sepsis control group (795 patients with non-sepsis and 108 healthy volunteers). The total score of literature quality was 14-23, indicating that the overall quality was good. Meta-analysis showed that Spearman correlation coefficient between sensitivity logorithm and 1－specificity logorithm of 14 groups of data was 0.106 (P = 0.719), indicating no threshold effect. The pooled sensitivity was 0.74 [95% confidence interval (95%CI) was 0.72-0.77], the pooled specificity was 0.73 (95%CI was 0.70-0.76), the diagnostic odds ratio (DOR) was 14.15 (95%CI was 7.77-25.78), and the area under summary receiver operating characteristic curve (AUC) was 0.865. Deeks funnel plot was asymmetrical on the left and right (P = 0.60), indicating that there was no publication bias of the eligible studies. Conclusion HBP has good accuracy for the diagnosis of adult sepsis and it can be used as an auxiliary index for adult sepsis diagnosis.
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Objective@#To evaluate the accuracy of heparin binding protein (HBP) in the diagnosis of adult sepsis by meta-analysis.@*Methods@#The retrospective, randomized controlled and prospective researches on the diagnosis of adult sepsis using HBP were reviewed by searching VIP network, China National Knowledge Infrastructure (CNKI), Wanfang database, PubMed, Embase and Web of Science from foundation to August 2018. The researches were selected according to inclusion and exclusion criteria, and QUADAS was used to evaluate the quality of eligible studies. Metadisc 14.0 was used to analyze the threshold effect, pool the estimation and do Meta regression analysis. Publication bias was assessed using Stata 12.0 with Deeks funnel plot.@*Results@#A total of 728 related literatures were searched and 14 studies were enrolled in this study with a total of 2 023 subjects, with 1 120 in sepsis group and 903 in non-sepsis control group (795 patients with non-sepsis and 108 healthy volunteers). The total score of literature quality was 14-23, indicating that the overall quality was good. Meta-analysis showed that Spearman correlation coefficient between sensitivity logorithm and 1-specificity logorithm of 14 groups of data was 0.106 (P = 0.719), indicating no threshold effect. The pooled sensitivity was 0.74 [95% confidence interval (95%CI) was 0.72-0.77], the pooled specificity was 0.73 (95%CI was 0.70-0.76), the diagnostic odds ratio (DOR) was 14.15 (95%CI was 7.77-25.78), and the area under summary receiver operating characteristic curve (AUC) was 0.865. Deeks funnel plot was asymmetrical on the left and right (P = 0.60), indicating that there was no publication bias of the eligible studies.@*Conclusion@#HBP has good accuracy for the diagnosis of adult sepsis and it can be used as an auxiliary index for adult sepsis diagnosis.
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Objective To investigate the early diagnostic value of EBV-DNA load in Plasma and peripheral blood mononuclear cells (PBMCs) for Children′s Primary Infectious Mononucleosis(IM).Methods The plasma and PBMCs samples were collected from children of 67 cases with primary IM (IM groups) and 75 healthy cases (H groups) during April, 2015 to March, 2016 in our hospital. The EBV-DNA load in PBMCs and plasma samples were quantified by Real-time PCR. Statistical differences between two groups were analyzed by using Mann-Whitney Test. Receiver operating characteristic curves (ROC) were analyzed to assess the early diagnostic value of EBV-DNA load for primary IM.Results Levels of EBV-DNA in the samples of plasma were significantly higher in the IM groups (median, 380 IU/ml) compared to the H groups (Z=-9.332,P<0.01), and levels of EBV-DNA in the PBMCs samples were also significantly higher (median, 2.51×105 IU/ml, Z=-9.194,P<0.01). According to ROC curve analysis, the AUC of EBV-DNA load in plasma was 0.908, the most appropriate cut-off value was 12.5 IU/ml (sensitivity: 83.6% and specificity: 94.7%),the AUC of EBV-DNA load in PBMCs was 0.944, the most appropriate cut-off value was 2.19×104 IU/ml (sensitivity: 89.6% and specificity: 82.7%), the AUC of combined testing(plasma and PBMCs) was 0.967(sensitivity: 98.3% and specificity: 99.0%).Conclusions Combined testing of plasma and PBMCs have better clinical value, it may be useful for the diagnosis of early stage of Children′s Primary Infectious Mononucleosis.
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Objective To evaluate the diagnostic value of serum M-type phospholipase A2 receptor(PLA2R) antibody detection for the diagnosis of idiopathic membranous nephropathy(IMN) by meta analysis.Methods By searching the databases of PubMed,Emabse,Wanfang and CNKI from inception to May,2017,all the literatures referred to serum PLA2R antibody for the diagnosis of IMN in both English and Chinese were reviewed and selected according to the inclusion and exclusion criteria.QUADAS was used to assess the quality of eligible studies.Meta-disc 1.4 was used to analyze heterogeneity and pooled effectsize and Stata 12.0 was used to analyze publication bias.Results A total of 20 studies with high quality were included.Heterogeneity test indicated there was no threshold effect.The pooled sensitivity was 0.69 (95 ％ CI:0.67 to 0.72),the pooled specificity was 0.97 (95 ％ CI:0.96 to 0.98) and the summary area under curve was 0.880.Sensitivity analysis indicated that the result was stable.Deek's funnel plot indicated there was no publication bias.Conclusion The sensitivity of detection of serum PLA2R antibody was acceptable for the diagnosis of IMN with high specificity,so more attention on PLA2R antibody should be paid in the clinical practice.
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Objective To analyze the distribution and antimicrobial resistance situation of pathogens isolated from blood culture to provide the scientific basis for the accuratel use of antibacterial drugs and preventing and controlling nosocomial acquired blood‐stream infection .Methods The US BACTEK‐FK automatic blood culture instrument and the French VITEK 2 COMPACT auto‐matic bacteria identification/susceptibility system were used to conduct the culture ,identification of blood culture isolated bacterial strains and drug susceptibility test .The results of drug susceptibility test were judged by adopting the 2011 criteria of the Clinical Laboratory and Standards Institute(CLSI) .Results The main isolated bacteria from blood culture for the recent three years were E coli ,staphylococcus aureus and klebsiella pneumonia bacteria ,coagulase negative staphylococcus(CNS) ,etc .The proportions of hos‐pital‐acquired bloodstream infections during these period were 42 .2% ,46 .9% and 54 .1% respectively .The detection rate of methi‐cillin‐resistant staphylococcus aureus (MRSA) was 18 .8% ,which of multiple drug resistant acinetobacter baumannii (MDRAB) was 42 .9% ,which of producing extended spectrum beta lactamase (ESBLs) in E .coli and klebsiella pneumoniae were 71 .8% and 69 .8% respectively .Conclusion The bloodstream infections pathogens in this hospital are mainly Enterobacteriaceae bacteria ,the proportion of hospital‐acquired bloodstream infections increases year by year ;the detection rate of multi‐drug resistant Acinetobact‐er baumanni (MDRAB) is higher ,clinic should pay more attention to the change of blood culture pathogens and their drug resist‐ance trend ,meanwhile nosocomial bloodstream infection should be prevented and controlled .
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Objective To analyse a novel splice mutation in EXT1 gene of hereditary multiple osteochondroma, and study its pathogenic mechanism.Methods In April of 2013, the proband was hospitalized from the outpatient department with multiple joint deformity for more than 20 years, peripheral blood of the proband and his parents were collected and genomic DNA was extracted .Coding regions and adjacent intron sequences of EXT1/EXT2 genes in genomic DNA of the family members were amplified and sequenced.Bioinformatics was used to analyze the mutation from sequencing .cDNA from peripheral blood of the proband ,the mother and normal control was made respectively as a template for amplifying coding regions of EXT1 gene, and the product was T-A cloned and sequenced.The abnormal transcripts of each group were counted and analyzed using chi square test to study the pathogenic mechanism of the mutation .Results Sequencing results of family members revealed that there was a heterozygous deletion mutation ( c.1284 +2del) in the 5′splice site of intron 4 in EXT1 gene of the proband and his mother .Bioinformatics predicted that exon 4 of EXT1 gene was skipping or spliced aberrantly due to the mutation .T-A clone and sequencing results as well as the statistical analysis suggested that there was a significantly higher proportion of transcripts with skipping exon 4 in the proband and his mother compared with the normal control (P=0.000, P<0.01).Conclusions c.1284+2del in EXT1 gene is reported for the first time internationally , which results in a considerable number of abnormal transcripts with skipping exon 4 in EXT1 gene, thereby influences the normal transcription and translation of EXT1 gene.