1.Mechanism of Action of Modified Tongluo Tangtai Formula in Improving Myelin Damage in Diabetic Peripheral Neuropathy Based on Wnt/β-catenin Signaling Pathway
Zhigang HE ; Mingzhu CHEN ; Jialu BAI ; Chunguang XIE ; Lian DU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(14):247-258
ObjectiveThis paper aims to explore the action and molecular mechanism of modified Tongluo Tangtai Formula(MTLTT) on myelin damage in diabetic peripheral neuropathy (DPN) based on network pharmacology and in vitro experiments. MethodsThe chemical components of the MTLTT were retrieved from the Traditional Chinese Medicine Systems Pharmacology (TCMSP) database and literature, and the component targets were collected from the SwissTargetPrediction database. The targets of DPN were collected from the GeneCards, OMIM, Disgenet, and GEO databases. Gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) enrichment analyses were performed using the Metascape database, and a network diagram was constructed using Cytoscape software. The binding actions of core components with glycogen synthase kinase 3 beta (GSK-3β) and β-catenin were analyzed by Autodock Vina. An in vitro DPN model was established by high glucose-induced Schwann cells and dorsal root ganglion cells (SCs/DRGs). The ultrastructural morphological changes of SCs and DRGs were observed by scanning electron microscope(SEM), and the expressions of myelin-associated glycoprotein (MAG) and myelin basic protein (MBP) were detected by immunofluorescence staining. The mRNA and protein expression levels of MAG, MBP, myelin protein 0 (P0), peripheral myelin protein 22 (PMP22), and Wnt/β-catenin signaling pathway-related protein β-catenin, GSK-3β, Wnt family member 3α (Wnt3α), and Wnt inhibitory factor-1 (Wif-1) were detected by real-time polymerase chain reaction (Real-time PCR) and Western blot. ResultsNetwork pharmacology analysis revealed that MTLTT components may treat DPN via the Wnt signaling pathway, involving key proteins such as GSK-3β, β-catenin and Wif-1. The molecular docking results indicate that atropine, apigenin, baicalein, isoflavanone, and albiflorin have good binding activity with GSK-3β, and that all 13 core components have stable binding activity with β-catenin. Cell experiments showed that compared with the blank group, SCs and DRGs in the model group exhibited severe morphological and structural abnormalities such as disintegration, shrinkage and axonal rupture, while these abnormal changes were improved after MTLTT intervention. Immunofluorescence results indicated that the fluorescence intensity of MAG and MBP was markedly decreased in the model group relative to the blank group(P<0.01), while MTLTT treatment obviously upregulated the expression of MAG and MBP compared with the model group (P<0.01). Real-time PCR and Western blot assays revealed that the expression levels of myelin-related molecules MAG, MBP, P0 and PMP22 were significantly reduced in the model group (P<0.05,P<0.01), and MTLTT remarkably increased their expression levels (P<0.05). In the Wnt/β-catenin signaling pathway, the mRNA levels of GSK-3β, Wif-1 and Wnt3α were elevated and β-catenin mRNA expression was declined in the model group (P<0.01). Meanwhile, the protein expressions of GSK-3β and Wif-1 were upregulated, whereas those of Wnt3α and β-catenin were downregulated (P<0.01). Compared with the model group, MTLTT at different doses reduced the mRNA and protein levels of GSK-3β and Wif-1 to varying degrees (P<0.05), and distinctly enhanced the protein expression of Wnt3α and β-catenin(P<0.01). ConclusionMTLTT can alleviate high glucose-induced myelin damage. Its protective mechanism may promote myelin repair by upregulating the expression of MAG, MBP, P0 and PMP22, and the therapeutic effect is possibly associated with the activation of Wnt/β-catenin signaling pathway.
2.MRI and Clinical Characteristics of Gastric-Type Endocervical Adenocarcinoma
Hui WANG ; Xiaojing SHEN ; Bin DU ; Jiejun CHENG ; Jialu XU
Chinese Journal of Medical Imaging 2025;33(8):862-866
Purpose To identify the distinct MRI findings of gastric-type endocervical adenocarcinoma(GEA)that can help differentiate it from usual-type endocervical adenocarcinoma(UEA)and reveal the radiologic-pathologic correlation.Materials and Methods All consecutive patients with cervical GEA(27 cases)and UEA(45 cases)treated at Shanghai First Maternity and Infant Hospital from January 2015 to August 2023 were included retrospectively.All patients underwent enhanced pelvic MRI examination.The clinical characteristics,tumor location,tumor shape,presence and size of cysts,and presence of hydrometra were evaluated between the two groups.Results The clinical characteristics included vaginal discharge in 12 cases of GEA and one case of UEA,vaginal bleeding in seven cases of GEA and 28 cases of UEA(P=0.048).Additionally,there were two cases of Peutz-Jeghers syndrome in GEA.Among the 27 GEA cases,the lesion was in the upper cervix in nine cases and involved the entire cervix in 16 cases;among the 45 UEA cases,the lesions were in the upper,lower and entire cervix in 12,29 and four cases,respectively(P=0.023).Regarding the tumor growth pattern,in the GEA group,there were nine cases of mass-forming growth pattern and 18 cases of diffuse infiltrative pattern;in the UEA group,there were 35 cases of mass-forming growth pattern and ten cases of diffuse infiltrative pattern,with a statistically significant difference(χ2=10.718,P=0.014).In 27 GEA cases,14 cases had observed intrauterine fluid,while in 45 UEA cases,eight cases had observed intrauterine fluid(χ2=12.657,P=0.002).Among the GEA cases,five had no cysts,12 had microcysts and ten had macrocysts;among the UEA cases,14 had no cysts,31 had microcysts and macrocysts were not observed(P=0.001).The maximum diameter of the GEA masses was(4.030±0.375)cm,and that of UEA masses was(2.315±0.769)cm,with a statistically significant difference(t=7.134,P<0.001).Conclusion By integrating multiple MRI features of the diffuse infiltrative growth pattern(such as the predominant location in the upper or entire cervix,frequent association with uterine cavity effusion or larger cysts,and a maximum mass diameter≥4 cm),it aids in distinguishing GEA from UEA.
3.Impact of early detection and management of emotional distress on length of stay in non-psychiatric inpatients: A retrospective hospital-based cohort study.
Wanjun GUO ; Huiyao WANG ; Wei DENG ; Zaiquan DONG ; Yang LIU ; Shanxia LUO ; Jianying YU ; Xia HUANG ; Yuezhu CHEN ; Jialu YE ; Jinping SONG ; Yan JIANG ; Dajiang LI ; Wen WANG ; Xin SUN ; Weihong KUANG ; Changjian QIU ; Nansheng CHENG ; Weimin LI ; Wei ZHANG ; Yansong LIU ; Zhen TANG ; Xiangdong DU ; Andrew J GREENSHAW ; Lan ZHANG ; Tao LI
Chinese Medical Journal 2025;138(22):2974-2983
BACKGROUND:
While emotional distress, encompassing anxiety and depression, has been associated with negative clinical outcomes, its impact across various clinical departments and general hospitals has been less explored. Previous studies with limited sample sizes have examined the effectiveness of specific treatments (e.g., antidepressants) rather than a systemic management strategy for outcome improvement in non-psychiatric inpatients. To enhance the understanding of the importance of addressing mental health care needs among non-psychiatric patients in general hospitals, this study retrospectively investigated the impacts of emotional distress and the effects of early detection and management of depression and anxiety on hospital length of stay (LOS) and rate of long LOS (LLOS, i.e., LOS >30 days) in a large sample of non-psychiatric inpatients.
METHODS:
This retrospective cohort study included 487,871 inpatients from 20 non-psychiatric departments of a general hospital. They were divided, according to whether they underwent a novel strategy to manage emotional distress which deployed the Huaxi Emotional Distress Index (HEI) for brief screening with grading psychological services (BS-GPS), into BS-GPS ( n = 178,883) and non-BS-GPS ( n = 308,988) cohorts. The LOS and rate of LLOS between the BS-GPS and non-BS-GPS cohorts and between subcohorts with and without clinically significant anxiety and/or depression (CSAD, i.e., HEI score ≥11 on admission to the hospital) in the BS-GPS cohort were compared using univariable analyses, multilevel analyses, and/or propensity score-matched analyses, respectively.
RESULTS:
The detection rate of CSAD in the BS-GPS cohort varied from 2.64% (95% confidence interval [CI]: 2.49%-2.81%) to 20.50% (95% CI: 19.43%-21.62%) across the 20 departments, with a average rate of 5.36%. Significant differences were observed in both the LOS and LLOS rates between the subcohorts with CSAD (12.7 days, 535/9590) and without CSAD (9.5 days, 3800/169,293) and between the BS-GPS (9.6 days, 4335/178,883) and non-BS-GPS (10.8 days, 11,483/308,988) cohorts. These differences remained significant after controlling for confounders using propensity score-matched comparisons. A multilevel analysis indicated that BS-GPS was negatively associated with both LOS and LLOS after controlling for sociodemographics and the departments of patient discharge and remained negatively associated with LLOS after controlling additionally for the year of patient discharge.
CONCLUSION
Emotional distress significantly prolonged the LOS and increased the LLOS of non-psychiatric inpatients across most departments and general hospitals. These impacts were moderated by the implementation of BS-GPS. Thus, BS-GPS has the potential as an effective, resource-saving strategy for enhancing mental health care and optimizing medical resources in general hospitals.
Humans
;
Retrospective Studies
;
Male
;
Length of Stay/statistics & numerical data*
;
Female
;
Middle Aged
;
Adult
;
Psychological Distress
;
Inpatients/psychology*
;
Aged
;
Anxiety/diagnosis*
;
Depression/diagnosis*
4.MRI and Clinical Characteristics of Gastric-Type Endocervical Adenocarcinoma
Hui WANG ; Xiaojing SHEN ; Bin DU ; Jiejun CHENG ; Jialu XU
Chinese Journal of Medical Imaging 2025;33(8):862-866
Purpose To identify the distinct MRI findings of gastric-type endocervical adenocarcinoma(GEA)that can help differentiate it from usual-type endocervical adenocarcinoma(UEA)and reveal the radiologic-pathologic correlation.Materials and Methods All consecutive patients with cervical GEA(27 cases)and UEA(45 cases)treated at Shanghai First Maternity and Infant Hospital from January 2015 to August 2023 were included retrospectively.All patients underwent enhanced pelvic MRI examination.The clinical characteristics,tumor location,tumor shape,presence and size of cysts,and presence of hydrometra were evaluated between the two groups.Results The clinical characteristics included vaginal discharge in 12 cases of GEA and one case of UEA,vaginal bleeding in seven cases of GEA and 28 cases of UEA(P=0.048).Additionally,there were two cases of Peutz-Jeghers syndrome in GEA.Among the 27 GEA cases,the lesion was in the upper cervix in nine cases and involved the entire cervix in 16 cases;among the 45 UEA cases,the lesions were in the upper,lower and entire cervix in 12,29 and four cases,respectively(P=0.023).Regarding the tumor growth pattern,in the GEA group,there were nine cases of mass-forming growth pattern and 18 cases of diffuse infiltrative pattern;in the UEA group,there were 35 cases of mass-forming growth pattern and ten cases of diffuse infiltrative pattern,with a statistically significant difference(χ2=10.718,P=0.014).In 27 GEA cases,14 cases had observed intrauterine fluid,while in 45 UEA cases,eight cases had observed intrauterine fluid(χ2=12.657,P=0.002).Among the GEA cases,five had no cysts,12 had microcysts and ten had macrocysts;among the UEA cases,14 had no cysts,31 had microcysts and macrocysts were not observed(P=0.001).The maximum diameter of the GEA masses was(4.030±0.375)cm,and that of UEA masses was(2.315±0.769)cm,with a statistically significant difference(t=7.134,P<0.001).Conclusion By integrating multiple MRI features of the diffuse infiltrative growth pattern(such as the predominant location in the upper or entire cervix,frequent association with uterine cavity effusion or larger cysts,and a maximum mass diameter≥4 cm),it aids in distinguishing GEA from UEA.
5.Metabolomics Insights into Lidan Huatan Huoxue Decoction Improving Cognitive Impairment in Obese Rats
Yang ZHANG ; Jialu LYU ; Tiegang XIAO ; Haonan SHANG ; Yueshuang ZHAO ; Xiangyu DU ; Jun XU ; Bing WANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(10):2851-2863
Objective To explore the mechanism of Lidan Huatan Huoxue Decoction improving cognitive impairment caused by obesity based on metabolomics.Methods Twenty-four 6-week-old male SD rats were randomly divided into a normal group fed with regular diet(Con,n=6)and a modeling group fed with high-fat and high-sugar diet(n=18).Rats with a body mass that is 20%higher than the standard body mass of their age-matched peers fed with ordinary diet were considered to have a successful obese model established.The presence of cognitive impairment was assessed by Morris water maze and Barnes maze tests.After the obese-induced cognitive impairment(OICI)model was established,the modeling rats were randomly divided into a model group(Model,n=6),a donepezil group(Donepezil,n=6),and a Lidan Huatan Huoxue Decoction group(LHH,n=6).Drugs were administered to the donepezil and LHH groups by gastric intubation.The donepezil group was administered with a dose of 0.45 mg·(kg·d)-1,while the LHH group was administered with a dose of 25 g·(kg·d)-1.The normal and model groups were given the same volume of normal saline by gastric intubation for 8 weeks.Before the rats were sacrificed,water maze and Barnes maze experiments were conducted to assess cognitive function.After sacrifice,specimens were collected for biochemical and histological examination of liver tissue and brain tissue.Non-targeted metabolomic analysis using liquid chromatography-mass spectrometry(LC-MS)was performed on feces,serum,and brain tissue to analyze changes in differential metabolites in rats.Results Compared with the model group,the intervention of Donepezil and LHH effectively improved the learning and memory ability of OICI rats(P<0.05 or P<0.01),inhibited the overactivation of hippocampal microglia,and increased the number of hippocampal synaptic proteins.LHH improved metabolic-related indicators in OICI rats(P<0.05 or P<0.01).Metabolomic analysis showed significant differences in metabolites in feces,serum,and brain tissue between the model group and the normal group.The main affected pathways in fecal metabolites included steroid biosynthesis,caffeine metabolism,lysosome,vitamin B6 metabolism,phenylalanine,tyrosine,and tryptophan biosynthesis.The main affected pathways in serum metabolites included central carbon metabolism in cancer,pentose phosphate pathway,mineral absorption,protein digestion and absorption,and aminoacyl-tRNA biosynthesis.The main affected pathways in brain tissue metabolites included glycerophospholipid metabolism,β-alanine metabolism,propionic acid metabolism,niacin and nicotinamide metabolism,and caffeine metabolism.After LHH intervention,fecal metabolites showed the most significant changes,mainly involving vitamin B6 metabolism,vitamin digestion and absorption,histidine metabolism,fructose and mannose metabolism,and steroid biosynthesis.Conclusion LHH can improve cognitive impairment in obese rats mainly by regulating fecal metabolites.The main pathways involved include vitamin B6 metabolism,vitamin digestion and absorption,histidine metabolism,fructose and mannose metabolism,and steroid biosynthesis.Among them,vitamin B6 metabolism and vitamin digestion and absorption may be the most important pathways.
6.Metabolomics Insights into Lidan Huatan Huoxue Decoction Improving Cognitive Impairment in Obese Rats
Yang ZHANG ; Jialu LYU ; Tiegang XIAO ; Haonan SHANG ; Yueshuang ZHAO ; Xiangyu DU ; Jun XU ; Bing WANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(10):2851-2863
Objective To explore the mechanism of Lidan Huatan Huoxue Decoction improving cognitive impairment caused by obesity based on metabolomics.Methods Twenty-four 6-week-old male SD rats were randomly divided into a normal group fed with regular diet(Con,n=6)and a modeling group fed with high-fat and high-sugar diet(n=18).Rats with a body mass that is 20%higher than the standard body mass of their age-matched peers fed with ordinary diet were considered to have a successful obese model established.The presence of cognitive impairment was assessed by Morris water maze and Barnes maze tests.After the obese-induced cognitive impairment(OICI)model was established,the modeling rats were randomly divided into a model group(Model,n=6),a donepezil group(Donepezil,n=6),and a Lidan Huatan Huoxue Decoction group(LHH,n=6).Drugs were administered to the donepezil and LHH groups by gastric intubation.The donepezil group was administered with a dose of 0.45 mg·(kg·d)-1,while the LHH group was administered with a dose of 25 g·(kg·d)-1.The normal and model groups were given the same volume of normal saline by gastric intubation for 8 weeks.Before the rats were sacrificed,water maze and Barnes maze experiments were conducted to assess cognitive function.After sacrifice,specimens were collected for biochemical and histological examination of liver tissue and brain tissue.Non-targeted metabolomic analysis using liquid chromatography-mass spectrometry(LC-MS)was performed on feces,serum,and brain tissue to analyze changes in differential metabolites in rats.Results Compared with the model group,the intervention of Donepezil and LHH effectively improved the learning and memory ability of OICI rats(P<0.05 or P<0.01),inhibited the overactivation of hippocampal microglia,and increased the number of hippocampal synaptic proteins.LHH improved metabolic-related indicators in OICI rats(P<0.05 or P<0.01).Metabolomic analysis showed significant differences in metabolites in feces,serum,and brain tissue between the model group and the normal group.The main affected pathways in fecal metabolites included steroid biosynthesis,caffeine metabolism,lysosome,vitamin B6 metabolism,phenylalanine,tyrosine,and tryptophan biosynthesis.The main affected pathways in serum metabolites included central carbon metabolism in cancer,pentose phosphate pathway,mineral absorption,protein digestion and absorption,and aminoacyl-tRNA biosynthesis.The main affected pathways in brain tissue metabolites included glycerophospholipid metabolism,β-alanine metabolism,propionic acid metabolism,niacin and nicotinamide metabolism,and caffeine metabolism.After LHH intervention,fecal metabolites showed the most significant changes,mainly involving vitamin B6 metabolism,vitamin digestion and absorption,histidine metabolism,fructose and mannose metabolism,and steroid biosynthesis.Conclusion LHH can improve cognitive impairment in obese rats mainly by regulating fecal metabolites.The main pathways involved include vitamin B6 metabolism,vitamin digestion and absorption,histidine metabolism,fructose and mannose metabolism,and steroid biosynthesis.Among them,vitamin B6 metabolism and vitamin digestion and absorption may be the most important pathways.
7.Research on the management of the Glissonean pedicle in laparoscopic anatomical hemihepatectomy and the in-fluence of indocyanine green dose on the fluorescence staining effect
Zhiyu LU ; Ji SUN ; Jialu DU ; Xuan MENG ; Man LUO ; Yue LIU ; Hongguang WANG
Journal of Surgery Concepts & Practice 2024;29(2):138-142
Objective To investigate the technique and dosage selection of indocyanine green(ICG)fluorescence staining in laparoscopic anatomical hemihepatectomy.Methods A retrospective cross-sectional study was conducted.The clinical date of the patients who underwent laparoscopic anatomical hemihepatectomy in the Cancer Hospital of the Chinese Academy of Medical Sciences from October 2020 to October 2023 was collected and analyzed,and the management of the Glissonean pedicle,the method and effect of ICG fluorescence staining during the operation,the dose of ICG injection,and the postoperative recovery were analyzed.Results A total of 91 laparoscopic anatomical hemihepatectomies were enrolled in this study,including 28 right hemihepatectomies and 63 left hemihepatectomies.The Glissonean pedicle was dissected intra-sheath in 9 cases and extra-sheath in 82 cases.ICG fluorescence staining was all performed using the negative staining method,of which 69 cases(75.8%)were successfully stained.The success rate of staining in the extra-sheath dissection and low-dose ICG group was higher than that in the intra-sheath dissection and high-dose ICG group.The average operation time was(168.5±32.2)minutes,the intraoperative bleeding volume was(152.4±56.3)ml,and the intraoperative blood transfusion rate was 6.6%(6/91),the average postoperative hospital stay was(8.5±2.6)days.One case was converted to laparotomy due to exophytic growth of the tumor compressing the Glissonean pedicle.Four cases had Clavien-Dindo Ⅰ-Ⅱ complications,all of which improved after treatment.There were 3 cases of grade Ⅲa complications,all of which were caused by bile leakage and abdominal cavity infection.They were cured by puncture and drainage.And there were no serious complications above grade Ⅲb.Conclusions In laparoscopic anatomical hemihepatectomy,the ICG fluorescence staining method was recommended to use the negative staining method of the extra-sheath dissection of the Glissonean pedicle,and a lower dose of ICG could help to increase the success rate of fluorescence staining.
8.PRE-084 ameliorated learning and memory impairment in T1DM via regulating neuronal MAM
Shuxuan HE ; Shiqiu JIANG ; Juan HU ; Jialu TAN ; Mengyu DU ; Qiang WANG ; Yansong LI
Journal of Xi'an Jiaotong University(Medical Sciences) 2023;44(6):866-872
【Objective】 Diabetic mice could show learning and memory dysfunction, and we aimed to investigate the effect of Sigma-1 receptor agonist, PRE-084, on neurons and cognitive impairment in mice with type 1 diabetes (T1DM). 【Methods】 Twenty mice with T1DM induced by streptozocin, aged 8-10 weeks, and 20 control mice (CON) were randomly divided into four groups (CON+Vehicle, CON+PRE-084, T1DM+Vehicle and T1DM+PRE-084). Mouse primary neurons were cultured in high glucose medium with PRE-084 and control solvent, respectively. The body weight, food and water intake, and fasting blood glucose level of mice in each group were detected and recorded. The learning and memory abilities of mice were detected by new object recognition experiment. The mitochondria-associated endoplasmic reticulum membrane (MAM) structure of neurons in hippocampal CA1 area of mice was detected by transmission electron microscope. And the expression levels of ATP and reactive oxygen species (ROS) in hippocampus of mice were detected by biochemical kit. Cell viability and ROS level of primary neurons were detected by CCK8 and cellular ROS kit. 【Results】 PRE-084 reduced the increase of body weight, food and water intake, and blood glucose caused by diabetes. PRE-084 significantly ameliorated the learning and memory impairment of the mice with T1DM, improved the changes of MAM structure in neurons of hippocampal CA1 area of diabetic mice, increased the level of ATP in hippocampus of diabetic mice, and decreased the increase of ROS expression in diabetic hippocampus and neurons under high glucose conditions. 【Conclusion】 Sigma-1 receptor agonist, PRE-084, could improve learning and memory impairment in the mice with T1DM, which might be related to the structural changes of MAM, the increase of ATP production, and the decrease of ROS production in hippocampal neurons.
9.KHK involved in intestinal barrier impairment by high-fat and high-fructose diet
Mengyu DU ; Shuxuan HE ; Lan YANG ; Juan HU ; Shiqiu JIANG ; Jialu TAN ; Qiang WANG ; Yansong LI
Journal of Xi'an Jiaotong University(Medical Sciences) 2023;44(5):731-736
【Objective】 To explore the effect of high-fat and high-fructose diet on mouse intestinal barrier function, as well as the role of ketohexokinase (KHK), the key enzyme in fructose metabolism, in intestinal barrier impairment. 【Methods】 Eight-week-old male control C57BL/6J mice and Khk-/- mice were randomly divided into control + normal diet (ND), control + high-fat and high-fructose diet (HFHFD), Khk-/-+ normal diet (ND+Khk-/-), and Khk-/-+ high-fat and high-fructose diet (HFHFD+Khk-/-) groups, with eight mice in each group. During the high-fat and high-fructose diet and normal diet, the body weight changes of mice in different groups were recorded. After the intervention, the blood glucose and insulin levels of mice in each group were detected. The intestinal barrier function and inflammation level of mice were evaluated by detecting intestinal water content, permeability, tight junction protein expression, serum and intestinal inflammatory factor levels. 【Results】 Compared with ND group, HFHFD group significantly increased the body weight, blood glucose and insulin levels of mice, increased the intestinal water content and permeability, decreased the expression of tight junction proteins, and increased inflammatory factors of the serum and intestines. In the two groups fed with high-fat and high-fructose diet, the body weight, blood glucose and insulin levels of the HFHFD+Khk-/- group were significantly lower than those of HFHFD group, and the intestinal barrier dysfunction and inflammation were significantly improved. 【Conclusion】 KHK, a key enzyme in fructose metabolism, is involved in the impairment of intestinal barrier caused by high-fat and high-fructose diet. Knockout of Khk gene significantly improved intestinal barrier dysfunction and the inflammation level.
10.Retesting of HIV antibody positive samples and analysis of confirmatory results
Jialu YAN ; Jing TONG ; Yangguang DU ; Yadi GUAN
Chinese Journal of Experimental and Clinical Virology 2021;35(4):404-407
Objective:To discuss the coincidence rate between the initial test and the retest result of the laboratory, and the relationship between the result of reexamination and the result of confirmation by analyzing the retesting and confirmatory result of positive samples in various medical institutions,Methods:A total of 710 HIV antibody positive samples from medical institutions within the jurisdiction of Xuzhou city from January 1 to December 31, 2018 were retrospectively collected as research materials. The source, population, reinspection result and confirmatory result were analyzed respectively.Results:The positive rate of reexamination in medical institutions, disease control institutions and blood collection and supply institutions was 62.12%(269/433), 96.53%(167/173), 14.42%(15/104), respectively. The double-reactive samples were confirmed to be positive at the time of reexamination or follow-up. The inconsistencies in the reexamination result were confirmed to be negative by the appropriate time or follow-up. The false positive rate by Bio-Rad reagents was 0.23% (1/443), the false positive rate by Alere reagents was 1.78% (8/450).Conclusions:From high to low, the retest compliance rate was in the order of disease control institutions, medical institutions, blood collection and supply institutions. The samples sent by the CDC can be tested directly without retesting. Therefore, the double-reactive samples in the reinspection should be mainly followed up. If the retest result are inconsistent and the samples are not confirmed positive or the follow-up result are positive, there is no missing test. The specificity of Bio-Rad reagents is better than that of Alere reagents.

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