Laboratory medicine最新文献_第5页

Red cell distribution width-to-albumin ratio is a predictor of survival in hepatitis B virus-associated decompensated cirrhosis. 红细胞分布宽度与白蛋白比值可预测乙型肝炎病毒相关失代偿期肝硬化患者的存活率。

Laboratory medicine Pub Date : 2024-03-07 DOI: 10.1093/labmed/lmad048

WeiLin Mao, ManChun Yuan, Xia He, Qiu Zhang

引用次数: 0

Optimization of laboratory diagnosis of heparin-induced thrombocytopenia using HemosIL-AcuStar-HIT-IgG assay. 使用 HemosIL-AcuStar-HIT-IgG 检测法优化肝素诱导的血小板减少症的实验室诊断。

Laboratory medicine Pub Date : 2024-01-06 DOI: 10.1093/labmed/lmad029

Catherine M Tucker, Ruben Rhoades, Ruchika Sharma, Jerald Z Gong

{"title":"Optimization of laboratory diagnosis of heparin-induced thrombocytopenia using HemosIL-AcuStar-HIT-IgG assay.","authors":"Catherine M Tucker, Ruben Rhoades, Ruchika Sharma, Jerald Z Gong","doi":"10.1093/labmed/lmad029","DOIUrl":"10.1093/labmed/lmad029","url":null,"abstract":"Objective: The aim of this study was to determine an optimal cutoff value for the newly available HemosIL-AcuStar-HIT-IgG assay (AcuStar) for the diagnosis of heparin-induced thrombocytopenia (HIT).Method: We evaluated the performance of AcuStar using serotonin release assay (SRA) as the gold standard and incorporated 4T score calculation in a cohort of suspected HIT cases. Statistical analysis was performed to determine optimal cutoff value for the diagnosis of HIT.Result: A diagnosis of HIT can be excluded with a platelet factor 4 (PF4) value of <0.4 U/mL by AcuStar and 4T score in the low-risk category (≤3). All other cases will require confirmation with a functional test.Conclusion: Our study resulted in the implementation of a diagnostic algorithm for laboratory diagnosis of HIT, which incorporates pretest calculation of 4T score and AcuStar as a screening test, with reflex confirmation by SRA. This new algorithm resulted in extended hours of test availability and a more rapid turnaround time in reporting PF4 results.","PeriodicalId":17951,"journal":{"name":"Laboratory medicine","volume":" ","pages":"34-39"},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9390581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elevated methemoglobin levels in patients treated with high-dose hydroxocobalamin. 接受大剂量羟钴胺治疗的患者高铁血红蛋白水平升高。

Laboratory medicine Pub Date : 2024-01-06 DOI: 10.1093/labmed/lmad037

Martinus Dyrud, Jianli Niu, Lisa Kohler

{"title":"Elevated methemoglobin levels in patients treated with high-dose hydroxocobalamin.","authors":"Martinus Dyrud, Jianli Niu, Lisa Kohler","doi":"10.1093/labmed/lmad037","DOIUrl":"10.1093/labmed/lmad037","url":null,"abstract":"Objective: The aim of this study was to assess the impact of hydroxocobalamin (OHCbl) infusion on arterial blood gas and oximetry values in patients with vasoplegic syndrome.Methods: Blood samples collected from 95 patients receiving OHCbl infusion were assayed using the ABL90 FLEX Plus blood gas analyzer for the concentration of methemoglobin (MetHb), total hemoglobin (tHb), carboxyhemoglobin (COHb), arterial oxygen saturation (SaO2), arterial oxygen partial pressure (PaO2), and arterial carbon dioxide partial pressure (PaCO2). Interference of OHCbl on these variables was evaluated using the measured difference between the preinfusion and postinfusion samples.Results: Blood MetHb (%) measured after the infusion of OHCbl (5g) were significantly higher than the baseline levels, with a median of 4.8 (IQR, 3.0-6.5) versus 1.0 (IQR, 1.0-1.2) (P < .001). Blood COHb (%) increased from a median of 1.3 (IQR, 1.0-1.8) to 1.7 (IQR, 1.3-2.2) (P < .001) following the OHCbl infusion. No differences were seen in median levels of tHb, PaO2, PaCO2, and SaO2 between pre- and post-OHCbl treatment.Conclusion: The presence of OHCbl in blood clearly interfered with the oximetry measurements of the hemoglobin component fractions by falsely increasing the levels of MetHb and COHb. Blood levels of MetHb and COHb cannot be reliably determined by the co-oximetry when OHCbl is known or suspected.","PeriodicalId":17951,"journal":{"name":"Laboratory medicine","volume":" ","pages":"50-55"},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9517731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular diagnostic results of a nephropathy gene panel in patients with suspected hereditary kidney disease. 疑似遗传性肾病患者肾病基因面板的分子诊断结果。

Laboratory medicine Pub Date : 2024-01-06 DOI: 10.1093/labmed/lmad027

Ali Topak

{"title":"Molecular diagnostic results of a nephropathy gene panel in patients with suspected hereditary kidney disease.","authors":"Ali Topak","doi":"10.1093/labmed/lmad027","DOIUrl":"10.1093/labmed/lmad027","url":null,"abstract":"Objective: Clinical diagnosis of hereditary kidney disease can be difficult because of its rarity and severe phenotypic variability. Identifying mutated causative genes can provide diagnostic and prognostic information. In this study, we report the clinical application and outcome of a next-generation sequencing-based, targeted multi-gene panel test for the genetic diagnosis of patients with hereditary kidney disease.Methods: A total of 145 patients evaluated for hereditary kidney disease who underwent a nephropathy panel with 44 different genes were retrospectively reviewed and included in the study.Results: Genetic diagnosis of other hereditary kidney diseases, particularly autosomal dominant polycystic kidney disease, was made in 48% of patients. The nephropathy panel changed the preliminary diagnosis in 6% of patients. The variants in 18 (12%) patients had not been previously reported in the literature.Conclusion: This study demonstrates the utility of the nephropathy panel in identifying patients diagnosed with hereditary kidney disease who are referred for genetic testing. A contribution was made to the variant spectrum of genes associated with hereditary kidney disease.","PeriodicalId":17951,"journal":{"name":"Laboratory medicine","volume":" ","pages":"13-19"},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9753936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Diagnostic Value of Circulating miR-29 Family for Digestive System Malignancies: A Meta-Analysis. 循环 miR-29 家族对消化系统恶性肿瘤的诊断价值：一项元分析

Laboratory medicine Pub Date : 2024-01-06 DOI: 10.1093/labmed/lmad030

Shuhui Zou, Fei Chen, Liqin Zhang, Cong Liu, Huamin Chen

{"title":"The Diagnostic Value of Circulating miR-29 Family for Digestive System Malignancies: A Meta-Analysis.","authors":"Shuhui Zou, Fei Chen, Liqin Zhang, Cong Liu, Huamin Chen","doi":"10.1093/labmed/lmad030","DOIUrl":"10.1093/labmed/lmad030","url":null,"abstract":"Objective: To evaluate the diagnostic value of circulating microRNA-29 (miR-29) in digestive system malignant neoplasms by meta-analysis.Methods: We searched the PubMed, Embase, Cochrane Library, and Web of Science to collect studies, published through September 2022, on the diagnostic value of miR-29 in digestive system tumors.Results: We included 7 studies in this meta-analysis, including colorectal cancer, esophageal squamous cell carcinomas, and cholangiocarcinoma. The pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio were 0.64 (95% CI, 0.53-0.74), 0.83 (0.60-0.94), 3.75 (1.42-9.91), 0.44 (0.31-0.61), and 8.63 (2.54-29.26), respectively. The area under the summary receiver operating characteristic curve was 0.75. The sensitivity of miR-29 derived from serum was higher than that of miR-29 derived from plasma for malignant digestive system tumors (0.71 vs 0.54; P = .04).Conclusion: This meta-analysis suggests that the circulating miR-29 family has good diagnostic performance for digestive system malignant tumors, with moderate sensitivity and good specificity.","PeriodicalId":17951,"journal":{"name":"Laboratory medicine","volume":" ","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9505635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diagnostic value of dual-fluorescence staining in bacterial vaginosis. 细菌性阴道病的双荧光染色诊断价值。

Laboratory medicine Pub Date : 2024-01-06 DOI: 10.1093/labmed/lmad034

Cui Li, Zhongliang Duan, Jing Zhang, Jing Gao, Chunmei Ying

{"title":"Diagnostic value of dual-fluorescence staining in bacterial vaginosis.","authors":"Cui Li, Zhongliang Duan, Jing Zhang, Jing Gao, Chunmei Ying","doi":"10.1093/labmed/lmad034","DOIUrl":"10.1093/labmed/lmad034","url":null,"abstract":"Objective: The aim of this study was to investigate the epidemiology of bacterial vaginosis (BV) in Shanghai, China, and to explore the value of a dual-fluorescence staining method in the diagnosis of BV.Methods: Specimens were collected from women with vaginitis at the Obstetrics and Gynecology Hospital of Fudan University from January 2020 to December 2021, and the proportions of various vaginitis types (such as Candida vaginitis, Trichomonas, and bacterial vaginitis) were analyzed statistically. To explore the diagnostic value of dual-fluorescence staining for BV, we first executed a dual-fluorescence staining method to analyze the vaginal secretions of 265 patients, then confirmed our diagnoses by consulting clinical physicians and by using Nugent scoring of Gram staining.Results: There were 16,905 patients who were diagnosed with vaginitis over the previous 2 years, with a median age of 32 (minimum age of 9 years and maximum of 84 years). Of these patients, we noted 10,887 cases (64.40%) of BV. Our staining results revealed that the dual-fluorescence method was consistent with Gram staining in the diagnosis of BV, with a P value of less than .001 using a χ 2 test and a consistency kappa value of 0.896. Compared with Gram staining, the dual-fluorescence staining method required an acceptable time (2.2 min vs 2.5 min, respectively) and exhibited different visual effects (green and yellow vs purple and red, respectively).Conclusion: Dual-fluorescence staining for the detection of bacterial diseases of the vagina exhibited acceptable consistency with Gram staining and performed well with respect to dyeing time, stability, and the interpretation of results. We argue that this method should be used in outpatient services.","PeriodicalId":17951,"journal":{"name":"Laboratory medicine","volume":" ","pages":"40-44"},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9455526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification and analysis of a clinically isolated strain of Halomonas based on whole-genome sequencing and comparative genomics. 基于全基因组测序和比较基因组学鉴定和分析一株临床分离的卤单胞菌。

Laboratory medicine Pub Date : 2024-01-06 DOI: 10.1093/labmed/lmad040

Pinjia Wang, Chengbin Xie

{"title":"Identification and analysis of a clinically isolated strain of Halomonas based on whole-genome sequencing and comparative genomics.","authors":"Pinjia Wang, Chengbin Xie","doi":"10.1093/labmed/lmad040","DOIUrl":"10.1093/labmed/lmad040","url":null,"abstract":"Objective: The aim of this study was to identify the species of a Halomonas strain isolated from a neonatal blood sample and to understand the potential pathogenicity and characteristic genes of the strain.Methods: The genomic DNA of strain 18071143 (identified as Halomonas by matrix-assisted laser desorption-ionization time of flight-mass spectrometry and the 16S ribosomal RNA (rRNA) gene sequence) was sequenced using Nanopore PromethION platforms. The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) were calculated using the complete genome sequences of the strain. Comparative genomic analyses were performed on strain 18071143 and 3 strains of Halomonas (Halomonas stevensii S18214, Halomonas hamiltonii KCTC 22154, and Halomonas johnsoniae KCTC 22157) that were associated with human infections and had high genomic similarity to strain 18071143.Results: Phylogenetic, ANI, and dDDH similarity analyses based on genome sequence indicated that strain 18071143 belonged to the species H stevensii. Similarities exist between strain 18071143 and the other 3 Halomonas strains in terms of gene structure and protein function. Nonetheless, strain 18071143 has greater potential for DNA replication, recombination, repair, and horizontal transfer.Conclusion: Whole-genome sequencing holds great promise for accurate strain identification in clinical microbiology. In addition, the results of this study provide data for understanding Halomonas from the perspective of pathogenic bacteria.","PeriodicalId":17951,"journal":{"name":"Laboratory medicine","volume":" ","pages":"80-87"},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9493440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bronchoalveolar lavage cytology in children with chronic unexplained cough and severely neurologically impaired children. 慢性不明原因咳嗽患儿和严重神经受损患儿的支气管肺泡灌洗细胞学检查。

Laboratory medicine Pub Date : 2024-01-06 DOI: 10.1093/labmed/lmad028

Ivan Pavić, Draženka Ezgeta Karačić, Iva Hojsak

{"title":"Bronchoalveolar lavage cytology in children with chronic unexplained cough and severely neurologically impaired children.","authors":"Ivan Pavić, Draženka Ezgeta Karačić, Iva Hojsak","doi":"10.1093/labmed/lmad028","DOIUrl":"10.1093/labmed/lmad028","url":null,"abstract":"Objective: We aimed to compare the cellular composition of bronchoalveolar lavage (BAL) fluids in children with chronic unexplained cough (group 1) and severely neurologically impaired children with chronic or recurrent respiratory problems (group 2) with the BAL cytology of children without pulmonary or systemic diseases (group 3).Methods: Bronchoscopy with BAL fluid analysis was performed in all subjects. Children with respiratory symptoms underwent 24-hour multichannel intraluminal impedance monitoring.Results: A significant difference was found between the groups in the total number of cells in BAL fluid cytology (191 [range, 24-12,747], 747 [range, 53-13,000], and 105 [range, 41-233] cells/μL, P = .015), in the percentage of neutrophils (21.2 [SD = 32.4], 49.4 [SD = 36.6], and 3.6 [SD = 2.4], P < .001), and in the percentage of lipid-laden macrophages (10.3 [SD = 11.4], 13.7 [SD = 15.8] and 0.44 [SD = 1.0], P < .001).Conclusion: The BAL fluid cytology provides useful data for determining the cause of chronic unexplained cough and chronic or recurrent respiratory problems in severely neurologically impaired children.","PeriodicalId":17951,"journal":{"name":"Laboratory medicine","volume":" ","pages":"20-26"},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9378670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The value of metagenomic next-generation sequencing for the diagnosis of pulmonary tuberculosis using bronchoalveolar lavage fluid. 利用支气管肺泡灌洗液进行元基因组下一代测序对肺结核诊断的价值。

Laboratory medicine Pub Date : 2024-01-06 DOI: 10.1093/labmed/lmad041

Jiali Gao, Lu Zhao, Gongqi Chen, Chunli Huang, Weiqiang Kong, Yuchen Feng, Guohua Zhen

{"title":"The value of metagenomic next-generation sequencing for the diagnosis of pulmonary tuberculosis using bronchoalveolar lavage fluid.","authors":"Jiali Gao, Lu Zhao, Gongqi Chen, Chunli Huang, Weiqiang Kong, Yuchen Feng, Guohua Zhen","doi":"10.1093/labmed/lmad041","DOIUrl":"10.1093/labmed/lmad041","url":null,"abstract":"Objective: The aim of this study was to compare metagenomic next-generation sequencing (mNGS) with other methods, including Xpert MTB/RIF, Mycobacterium tuberculosis (MTB) culture, and acid-fast bacillus (AFB) staining in the diagnosis of pulmonary tuberculosis (PTB) using bronchoalveolar lavage fluid (BALF).Methods: The data of 186 patients with suspected PTB were retrospectively collected from January 2020 to May 2021 at Tongji Hospital. BALF samples were collected from all patients and analyzed using AFB staining, MTB culture, Xpert MTB/RIF, and mNGS.Results: Of the 186 patients, 38 patients were ultimately diagnosed as PTB. Metagenomic next-generation sequencing exhibited a sensitivity of 78.95%, which was higher than AFB staining (27.59%) and MTB culture (44.12%) but similar to Xpert MTB/RIF (72.73%). Utilization of combined methods demonstrates improvement for PTB diagnosis. In support of this, the area under the receiver operating characteristic curve for the combination of mNGS and MTB culture (0.933, 95% CI: 0.871, 0.995) was larger than those of mNGS, Xpert MTB/RIF, MTB culture, and the combination of Xpert MTB/RIF and MTB culture.Conclusion: The sensitivity of mNGS in the diagnosis of PTB using BALF specimen is similar to Xpert MTB/RIF. Metagenomic next-generation sequencing in combination with MTB culture may further improve the diagnosis of pulmonary tuberculosis.","PeriodicalId":17951,"journal":{"name":"Laboratory medicine","volume":" ","pages":"96-102"},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10771034/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9936741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interleukin 10, but not tumor necrosis factor-alpha, gene variations are associated with factor VII inhibitor development. 白细胞介素 10（而非肿瘤坏死因子-α）基因变异与 VII 因子抑制剂的形成有关。

Laboratory medicine Pub Date : 2024-01-06 DOI: 10.1093/labmed/lmad026

Nahid Ramezanpour, Korosh Khanaki, Akbar Dorgalaleh, Mahmood Shams, Ali Elmi, Farhad Zaker

{"title":"Interleukin 10, but not tumor necrosis factor-alpha, gene variations are associated with factor VII inhibitor development.","authors":"Nahid Ramezanpour, Korosh Khanaki, Akbar Dorgalaleh, Mahmood Shams, Ali Elmi, Farhad Zaker","doi":"10.1093/labmed/lmad026","DOIUrl":"10.1093/labmed/lmad026","url":null,"abstract":"Objective: Development of alloantibodies against coagulation factor VII (FVII) is the main therapeutic challenge in severe congenital FVII deficiency. About 7% of patients with severe congenital FVII deficiency develop an inhibitor against FVII. In this research, the relationship between interleukin (IL)-10 and tumor necrosis factor-alpha (TNF)-α gene variants and inhibitor development was evaluated for a group of Iranian patients with severe congenital factor VII deficiency.Methods: Patients with FVII deficiency were divided into 2 groups: 6 cases and 15 controls. Genotyping was performed using the amplification-refractory mutation system polymerase chain reaction.Results: We found that IL-10 rs1800896 A>G gene variant is associated with the risk of FVII inhibitor development (OR = 0.077, 95% CI = 0.016-0.380, P = .001), whereas the TNFα-rs1800629G>A variant has no relation with inhibitor development in severe FVII deficiency.Conclusion: The results show that the IL-10 rs1800896 A>G variant increases the risk of developing an inhibitor in patients with severe congenital FVII deficiency.","PeriodicalId":17951,"journal":{"name":"Laboratory medicine","volume":" ","pages":"8-12"},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9390579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0