1.Clinical application of KASP-based RHCE genotyping in RhD-positive patients
Xiaoyu LIAN ; Mengdan LI ; Xiaoyu GUAN ; Li TIAN ; Chenying WANG ; Di WU ; Tianqiong LUO ; Xiaolin DU ; Xin JI ; Haixia XU ; Jue WANG ; Ling LI ; Zhong LIU
Chinese Journal of Blood Transfusion 2026;39(5):596-602
Objective: To develop a RHCE genotyping assay based on kompetitive allele-specific PCR (KASP) and assess its clinical accuracy for RhCE blood group determination. Methods: KASP primers were designed to interrogate three RHCE loci: the 109 bp insertion/deletion in intron 2, c. 307T>C, and c. 676C>G. A total of 1 194 RhD-positive inpatients from Chengdu were typed by both KASP genotyping and manual tube serology. Discordant samples (n=10) were retested by both methods and further resolved by Sanger sequencing. An additional 377 cases were tested for the c. 48C>G locus to evaluate the predictive accuracy of individual loci and combined locus testing for RhC antigen. Results: Genotyping concordance with serology was 100.0% for both the c. 676C>G locus (RhE/Rhe) and the c. 307T>C locus (Rhc). For RhC prediction using the 109 bp insertion, overall accuracy was 99.7% (1 191/1 194); the 3 discordant cases were confirmed by Sanger sequencing to be false negatives attributable to 109 bp deletion in intron 2. Testing the c. 48C>G allele for RhC prediction yielded 7 false positives, with an accuracy of 98.1% (370/377). RhC antigen status was determined by combining the 109 bp insertion and the c. 48C allele. After excluding 10 samples with inconsistent results between the two loci, the accuracy reached 100% in the remaining 367 samples. When both loci were applied in combination, accuracy reached 100% in the 367 cases with concordant results. Among the 1 194 patients, CCee (45.8%) and CcEe (31.7%) were the most common RhCE phenotypes. The e antigen had the highest positivity rate (92.2%), and the Ce haplotype was the most frequent (66.9%). Conclusion: The KASP-based RHCE genotyping method achieves high accuracy for clinical RhCE typing. Combining the 109 bp insertion/deletion with the c. 48C allele significantly improves RhC antigen prediction compared with either locus alone. This method was applied to RhCE genotyping of 1 194 RhD-positive inpatients in Chengdu, providing local RhCE phenotype and haplotype distribution data to support RhCE-matched transfusion practice.
2.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.
3.Mitochondrial Dysfunction and Diabetic Retinopathy: From Pathogenesis to Therapeutic Targets
Xiao-Yan ZHU ; Tao JIN ; Yu ZHANG ; Lu-Lu LIAN ; Wan-Li DU
Progress in Biochemistry and Biophysics 2026;53(7):1849-1866
Diabetic retinopathy (DR) is one of the most prevalent and vision-threatening microvascular complications of diabetes mellitus, yet its pathogenesis extends far beyond vascular injury alone. As the retina is among the most energy-demanding tissues in the body, its neurons, glial cells, pigment epithelial cells, pericytes, and endothelial cells are highly dependent on mitochondrial oxidative phosphorylation to maintain visual signal transduction, ionic homeostasis, and neurovascular integrity. This review summarizes current evidence indicating that mitochondrial dysfunction is not merely a downstream consequence of chronic hyperglycemia, but a central pathogenic hub that initiates, amplifies, and perpetuates retinal neurovascular degeneration in DR. Persistent hyperglycemia activates multiple abnormal metabolic pathways, including the polyol pathway, hexosamine pathway, protein kinase C signaling, advanced glycation end-product formation, and angiotensin II-related responses. Although these pathways differ mechanistically, they converge on excessive reactive oxygen species (ROS) generation, antioxidant depletion, and mitochondrial injury. Under diabetic stress, electron transport chain overload promotes mitochondrial ROS leakage, damages mitochondrial DNA, disrupts membrane potential, and impairs the transcription of key respiratory chain components. In parallel, mitochondrial quality-control systems become progressively compromised. The balance between fusion and fission shifts toward pathological fragmentation through reduced MFN1/2 and OPA1 activity and enhanced DRP1-mediated fission. Mitochondrial biogenesis is suppressed through inhibition of the AMPK/SIRT1/PGC-1α/NRF1/TFAM axis, while mitophagy changes from an early compensatory response to a later state of autophagic flux blockade and accumulation of dysfunctional mitochondria. Importantly, damaged mitochondria serve as signal amplifiers linking metabolic stress to inflammation and programmed cell death. Mitochondrial ROS, oxidized mitochondrial DNA, calcium overload, cardiolipin exposure, and membrane permeabilization activate interrelated death pathways, including intrinsic apoptosis, ferroptosis, and pyroptosis. Cytochrome C and apoptosis-inducing factor promote caspase-dependent and caspase-independent apoptosis; iron dyshomeostasis, glutathione depletion, GPX4 dysfunction, and lipid peroxidation drive ferroptosis; and mitochondrial danger signals activate the NLRP3 inflammasome and gasdermin-dependent pyroptosis. These pathways jointly damage the retinal neurovascular unit and contribute to pericyte loss, endothelial barrier breakdown, Müller cell dysfunction, retinal ganglion cell apoptosis, retinal pigment epithelial injury, and photoreceptor degeneration. This review also emphasizes the role of epigenetic regulation in stabilizing mitochondrial pathology. DNA methylation, histone modifications, and non-coding RNAs interact to silence mitochondrial protective genes, alter antioxidant responses, and maintain the “metabolic memory” of DR even after glycemic normalization. Therefore, mitochondrial dysfunction should be understood as a dynamic, multidimensional network rather than a single pathological event. Current clinical approaches, such as laser photocoagulation, intravitreal anti-VEGF therapy, and vitrectomy, mainly target advanced vascular lesions and are limited by invasiveness, incomplete responsiveness, recurrence, and potential adverse effects. Therapeutically, strategies targeting mitochondrial ROS, restoring mitochondrial dynamics, enhancing biogenesis, regulating mitophagy, inhibiting inflammasome activation, correcting epigenetic abnormalities, and improving targeted delivery systems show promising potential. However, major translational barriers remain, including retinal cell heterogeneity, stage-specific mitochondrial responses, insufficient organelle-specific drug delivery, and long-term safety concerns. A deeper understanding of mitochondrial regulatory networks may support earlier, more precise, and multi-target interventions for preventing or slowing DR progression.
4.Lentivirus-modified hematopoietic stem cell gene therapy for advanced symptomatic juvenile metachromatic leukodystrophy: a long-term follow-up pilot study.
Zhao ZHANG ; Hua JIANG ; Li HUANG ; Sixi LIU ; Xiaoya ZHOU ; Yun CAI ; Ming LI ; Fei GAO ; Xiaoting LIANG ; Kam-Sze TSANG ; Guangfu CHEN ; Chui-Yan MA ; Yuet-Hung CHAI ; Hongsheng LIU ; Chen YANG ; Mo YANG ; Xiaoling ZHANG ; Shuo HAN ; Xin DU ; Ling CHEN ; Wuh-Liang HWU ; Jiacai ZHUO ; Qizhou LIAN
Protein & Cell 2025;16(1):16-27
Metachromatic leukodystrophy (MLD) is an inherited disease caused by a deficiency of the enzyme arylsulfatase A (ARSA). Lentivirus-modified autologous hematopoietic stem cell gene therapy (HSCGT) has recently been approved for clinical use in pre and early symptomatic children with MLD to increase ARSA activity. Unfortunately, this advanced therapy is not available for most patients with MLD who have progressed to more advanced symptomatic stages at diagnosis. Patients with late-onset juvenile MLD typically present with a slower neurological progression of symptoms and represent a significant burden to the economy and healthcare system, whereas those with early onset infantile MLD die within a few years of symptom onset. We conducted a pilot study to determine the safety and benefit of HSCGT in patients with postsymptomatic juvenile MLD and report preliminary results. The safety profile of HSCGT was favorable in this long-term follow-up over 9 years. The most common adverse events (AEs) within 2 months of HSCGT were related to busulfan conditioning, and all AEs resolved. No HSCGT-related AEs and no evidence of distorted hematopoietic differentiation during long-term follow-up for up to 9.6 years. Importantly, to date, patients have maintained remarkably improved ARSA activity with a stable disease state, including increased Functional Independence Measure (FIM) score and decreased magnetic resonance imaging (MRI) lesion score. This long-term follow-up pilot study suggests that HSCGT is safe and provides clinical benefit to patients with postsymptomatic juvenile MLD.
Humans
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Leukodystrophy, Metachromatic/genetics*
;
Pilot Projects
;
Genetic Therapy/methods*
;
Hematopoietic Stem Cell Transplantation
;
Male
;
Follow-Up Studies
;
Female
;
Lentivirus/genetics*
;
Child
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Child, Preschool
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Hematopoietic Stem Cells/metabolism*
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Cerebroside-Sulfatase/metabolism*
;
Adolescent
5.Impact of Laboratory Analytical Indicators on Positive Blood Culture Detection Rates: A Single Center Study.
Di WANG ; Ling Li LIU ; Rui Rui MA ; Li Jun DU ; Gui Xue CHENG ; Ya Li LIU ; Qiao Lian YI ; Ying Chun XU
Biomedical and Environmental Sciences 2025;38(3):303-312
OBJECTIVE:
Blood culture remains the gold standard for diagnosing bloodstream infections. Clinical laboratories must ensure the quality of blood culture processes from receipt to obtaining definitive results. We examined laboratory analytical indicators associated with positive blood culture results.
METHODS:
Blood cultures collected from Peking Union Medical College Hospital between January 1, 2020, and December 31, 2022, were retrospectively analyzed. The mode of transportation (piping logistics delivery vs. staff), source of blood cultures (outpatient/emergency department vs. inpatient department), rotation of personnel, and time of reception (8:00-19:59 vs. 20:00-07:59) were compared between blood culture-positive and -negative results.
RESULTS:
Between 2020 and 2022, the total positive rate of blood culture was 8.07%. The positive rate of blood cultures in the outpatient/emergency department was significantly higher than that in the inpatient department (12.46% vs. 5.83%; P < 0.0001). The time-to-detection of blood cultures was significantly affected by the delivery mode and personnel rotation. The blood culture positive rate of the total pre-analytical time within 1 h was significantly higher than that within 1-2 h or > 2 h ( P < 0.0170).
CONCLUSION
Laboratory analytical indicators such as patient source, transportation mode, and personnel rotation significantly impacted the positive detection rate or time of blood culture.
Blood Culture/statistics & numerical data*
;
Humans
;
Retrospective Studies
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Emergency Service, Hospital/statistics & numerical data*
6.Construction and validation of a novel prognostic risk scoring table for patients with acute-on-chronic liver failure
Zhanhu BI ; Haifeng HU ; Hong DU ; Linxu WANG ; Xiaofei YANG ; Yidi DING ; Jianqi LIAN
Journal of Clinical Hepatology 2025;41(10):2102-2109
ObjectiveTo investigate the clinical features of patients with acute-on-chronic liver failure (ACLF), and to construct a risk scoring table that can accurately predict the prognosis of patients in the early stage. MethodsA retrospective analysis was performed for the clinical data of 502 patients with ACLF who were admitted to Tangdu Hospital, Air Force Medical University, from January 1, 2010 to December 31, 2020 (training set), and the influencing factors for 28-day mortality rate were identified. The 69 ACLF patients who were admitted to Tangdu Hospital, Air Force Medical University, from January 1 to December 31, 2021 were enrolled as the validation set. The independent-samples t test or the Mann-Whitney U test was used for comparison of continuous data between two groups, and the chi-square test or the Fisher’s exact test was used for comparison of categorical data between two groups. A univariate Cox regression analysis was used to obtain the early warning indicators associated with the 28-day prognosis of ACLF patients, and variance inflation factors were used to assess multicollinearity among predictors; a multivariate Cox regression analysis was used to construct a risk model for ACLF prognosis (mortality). A risk scoring table for ACLF prognosis (mortality) was developed based on regression coefficients (β) from the model equation and weight assignments in the nomogram. Internal validation and comparison were performed for the risk model for ACLF prognosis (mortality), the scoring table for ACLF prognosis (mortality), and other scoring models (Child-Turcotte-Pugh [CTP] score, Model for End-Stage Liver Disease [MELD] score, MELD combined with serum sodium concentration [MELD-Na] score, and integrated MELD [iMELD] score) in the training set, while external validation and comprehensive evaluation of the scoring table and the other scoring models were performed in the validation set. The Nagelkerke’s R2 test and the Hosmer-Lemeshow test were used to assess the degree of fitting of the risk model for ACLF prognosis (mortality), the scoring table for ACLF prognosis (mortality), and other scoring models, and fitting curves were plotted. C-index was used to assess the discriminatory ability of the scoring table for ACLF prognosis (mortality) and the other scoring models, and the Z-test was used for comparison of C-index between different models. The decision curve analysis was used to compare the clinical benefits of the scoring table for ACLF prognosis (mortality) and the other scoring models. ResultsThe multivariate Cox regression analysis showed that age (hazard ratio [HR]=1.027, 95% confidence interval [CI]: 1.015 — 1.039, P<0.001), hepatic encephalopathy grade (grade 1: HR=2.928, 95%CI: 1.463 — 5.858, P=0.002; grade 2: HR=3.811, 95%CI: 2.078 — 6.988, P<0.001; grade 3: HR=3.916, 95%CI: 1.917 — 8.001, P<0.001; grade 4: HR=6.966, 95%CI: 4.559 — 10.644, P<0.001), an increase in total bilirubin (TBil) by ≥17.1 μmol/L per day (HR=1.771, 95%CI: 1.248 — 2.513, P=0.001), creatinine (HR=1.005, 95%CI: 1.004 — 1.006, P<0.001), neutrophil count (HR=1.092, 95%CI: 1.060 — 1.126, P<0.001), and international normalized ratio (HR=1.298, 95%CI: 1.187 — 1.418, P<0.001) were independent risk factors associated with the 28-day mortality rate of ACLF patients, and a risk scoring table was constructed for ACLF prognosis (mortality). The Nagelkerke’s R2 test showed that the risk scoring table for ACLF prognosis (mortality) had an R2 value of 0.599 in the training set and 0.722 in the validation set, which were higher than the R2 values of CTP, MELD, MELD-Na, and iMELD scores. The Hosmer-Lemeshow test showed that the risk scoring table for ACLF prognosis (mortality) had a P value of 0.280 in the training set and 0.788 in the validation set. The C-index analysis showed that the scoring table had a higher C-index than the other scoring models in the validation set (all P<0.001), as well as a higher C-index than CTP score in the training set (P<0.001). The decision curve analysis showed that the risk scoring table for ACLF prognosis (mortality) had higher clinical net benefits than the other scoring models. ConclusionCompared with other scoring models currently used in clinical practice, the novel risk scoring table for ACLF prognosis (mortality) constructed based on the six predictive factors of age, hepatic encephalopathy grade, an increase in TBil by ≥17.1 μmol/L per day, creatinine, neutrophil count, and international normalized ratio has a relatively high value in predicting the 28-day prognosis of ACLF patients.
7.Analysis for the value of digital mammography combined with serum CHAC1 and RAI14 in differentiating benign and malignant breast masses
Limin YAO ; Jianxia HUANG ; Hongrui FAN ; Jingjuan DONG ; Wenzheng DU ; Xiaoxiao LIAN
China Medical Equipment 2025;22(3):43-47
Objective:To explore the diagnostic value of digital mammography combined with serum glutathione specific gamma-glutamyl transpeptidase 1(CHAC1)and retinoic acid-induced protein 14(RAI14)in identifying benign and malignant breast masses.Methods:A total of 189 patients with breast masses who were treated at Handan Maternal and Child Health Care Hospital from June 2019 to June 2024 were prospectively selected as the research subjects.According to the results of pathological biopsy,they were divided into benign mass group(128 cases)and malignant mass group(61 cases).All patients underwent digital mammography detection.The levels of serum CHAC1 and RAI14 were detected by enzyme-linked immunosorbent assay(ELISA).The general clinical data of the patients were collected and analyzed.Multivariate logistic regression analysis was used to analyze the factors of influencing benign and malignant nature of breast masses.The receiver operating characteristic(ROC)curve was drawn to analyze the diagnostic value of CHAC1 and RAI14 for the benign and malignant nature of breast masses.The Kappa test was used to assess the consistency of results between each diagnostic method and the pathological detection.Results:For 189 patients with breast masses,digital mammography identified 56 cases of malignant masses and 133 cases of benign masses,and 13 cases of them were misdiagnosis and 18 cases of them were missed diagnosis.It showed a moderate consistency with the results of pathological detection(Kappa=0.617,P<0.05).Compared with the benign mass group,the levels of serum CHAC1 and RAI14 in the malignant mass group were significantly higher,and the differences of them between the two groups were statistically significant(t=12.249,12.512,P<0.05).The age,menopausal time,CHAC1 and RAI14 of the patients were all risk factors that can affect the benign and malignant nature of breast masses(OR=1.368,1.305,1.897,1.995,P<0.05).The area under curve(AUC),sensitivity and specificity of CHAC1 were respectively 0.816(95%CI:0.753~0.868),70.49%and 89.06%in diagnosing the benign and malignant nature of breast masses.These indicators of RAI14 were respectively 0.838(95%CI:0.778~0.888),68.85%and 89.84%in diagnosing the benign and malignant nature.The combined detection of the three methods identified 74 cases of malignant masses and 115 cases of benign masses,with 15 cases of misdiagnosis and 2 cases of missed diagnosis,which showed an extremely high consistency with the results of pathological detection(Kappa=0.805,P<0.001).The sensitivity(96.72%),negative predictive value(98.26%)and accuracy(91.01%)of the combined detection of digital mammography,serum CHAC1 and RAI14 were significantly higher than those of each alone detection of them,and the differences of them were significant(x2=15.310,16.623,15.310,11.690,12.402,11.572,5.276,5.276,4.677,P<0.05).Conclusion:The levels of serum CHAC1 and RAI14 appear increase in malignant breast masses,and digital mammography combined with serum CHAC1 and RAI14 has a certain of identification value for benign and malignant nature of breast masses.
8.Rumination level and its influencing factors among middle-advanced cancer inpatients: a multicenter cross-sectional study
Songmei DU ; Xiaolin WU ; Dan HE ; Qinggui WU ; Yuying LIAN ; Hongxia GONG
Sichuan Mental Health 2025;38(1):41-45
BackgroundRumination can play a certain degree role of psychological adjustment in cancer patients. Previous studies have focused on studying the level of rumination in a single type of cancer patient, but there is a lack of comprehensive investigation and influencing factor research on rumination levels in different types of cancer patients. ObjectiveTo explore the level of rumination and its influencing factors among middle-advanced cancer inpatients, so as to provide certain guidance for targeted psychological care in clinical practice. MethodsFrom January 2021 to December 2022, a systematic sampling technique was used to recruit 346 patients with TNM stage III or above tumors hospitalized in Nuclear Industry 416 Hospital, Chengdu Sixth People's Hospital and the First People's Hospital of Yibin. All individuals were assessed using Perceived Social Support Scale (PSSS) and the Chinese version of Event-Related Ruminant Inventory (C-ERRI), and Logistic regression analysis was utilized to identify the influencing factors of rumination. ResultsIn terms of C-ERRI, patients scored (15.59±5.61) on intrusive rumination and (14.59±5.43) on deliberate rumination. Education levels of junior high school/high school/vocational training school (OR=0.817, P<0.01) and junior college and above (OR=0.579, P<0.05) were the protective factors of intrusive rumination, whereas annual personal incomes of <10 000 yuan (OR=4.918, P<0.01) or 10 000~50 000 yuan (OR=2.076, P<0.01) and low (OR=6.882, P<0.01) or middle (OR=3.114, P<0.01) level of social support were the risk factors of intrusive rumination. For deliberate rumination, education levels of junior high school/high school/vocational training school (OR=0.574, P<0.01) and junior college and above (OR=0.449, P<0.05) were the protective factors, and low (OR=1.391, P<0.01) or middle (OR=1.161, P<0.05) levels of social support were the risk factors. ConclusionThe level of intrusive rumination of inpatients with middle-advanced cancer is related to education level, economic status and social support, furthermore, the level of deliberate rumination is related to the educational level and social support. [Funded by Medical Research Project of Chengdu Health Commission ( number, 2020119)]
9.Effects of loganin on the biological behavior of cervical cancer cells mediated by glutamine metabolism via regulation of the NFE2L2-FTH1-GPX4 pathway
Yan LEI ; Chun FENG ; Qian ZOU ; Yi DONG ; Hongmei LIAN ; Xin DU
Journal of China Medical University 2025;54(7):583-589
Objective To investigate the effect of loganin(Log)on glutamine metabolism in cervical cancer through the regula-tion of nuclear factor red blood cell 2 related factor 2(NFE2L2)-ferritin heavy chain 1(FTH1)-glutathione peroxidase 4(GPX4).Methods Bioinformatics analysis was conducted to identify common targets of Log,glutamine metabolism,and cervical cancer.Hela cells were divided into Blank,control(Ctrl),Log,cisplatin(DDP),NFE2L2 activator(TBHQ),NFE2L2 inhibitor(ML385),and TBHQ+Log groups to detect cell proliferation,invasion,apoptosis,glutamine metabolism,and the protein expression of NFE2L2,FTH1,and GPX4.A cervical cancer xenograft mouse model was established to investigate the in vivo effects of Log on the progression of cervical cancer.Results Bioinformatics analysis confirmed that NFE2L2 might be a target of Log in the treatment of cervical cancer.Both Log and DDP reduced the proliferation and invasion abilities of Hela cells,increased apoptosis,and decreased the levels of glutamine and glutamic acid,as well as the protein expression of glutaminase(GLS1)and glutamic dehydrogenase(GLUD1,P<0.05).The NFE2L2 activator TBHQ had opposite effects,whereas ML385 had a similar impact on the Log.Additionally,Log treatment inhibited the protein expression of NFE2L2,FTH1,and GPX4(P<0.05).Animal experiments showed that Log significantly inhibited cervical cancer progression(P<0.05).Conclusion Log affects cervical cancer progression via glutamine metabolism by inhibiting the NFE2L2-FTH1-GPX4 signaling pathway.
10.Clinical features of chronic hepatitis C patients with genotype 3 infection:A multicenter retrospective cohort study
Jingyi XIE ; Yujia JING ; Yishan LIU ; Manling BAI ; Zhangqian CHEN ; Qiang XU ; Hong DU ; Yuxiu MA ; Liting ZHANG ; Shanshan ZHU ; Xiaoqin GAO ; Xinggang BAI ; Guoying YU ; Jianqi LIAN ; Xiaozhong WANG ; Yongping ZHANG ; Jiuping WANG ; Fanpu JI ; Jianjun FU ; Ning GAO
Journal of Clinical Hepatology 2025;41(8):1533-1540
Objective To investigate the clinical features of chronic hepatitis C(CHC)patients with hepatitis C virus genotype 3(HCV GT3)infection and the risk factors for disease progression.Methods A multicenter retrospective cohort study was conducted among 1 002 CHC patients from 11 clinical centers in Northwest China from December 2017 to November 2023,and according to their genotype,they were divided into GT1,GT2,GT3,and GT6 groups.Clinical features were compared between the patients with different genotypes.The one-way analysis of variance was used for comparison of normally distributed continuous data between groups,and the Scheffe test was used for further comparison between two groups.The Kruskal-Wallis H test was used for comparison of data with skewed distribution between groups;the chi-square test or Fisher test was used for comparison of categorical data between groups.The multivariate logistic regression analysis was used to explore the influencing factors for the progression of CHC to liver cirrhosis.Results In terms of the genotype,there were 427 patients with GT1 infection,242 with GT2 infection,299 with GT3 infection(210 patients with GT3a infection,87 with GT3b infection,and 2 with unclassified genotype),and 34 with GT6 infection.The patients with GT3 infection had a significantly younger age than those with GT1 infection(51.3±0.5 years vs 53.2±0.6 years,P<0.05)or GT2 infection(51.3±0.5 years vs 53.7±0.8 years,P<0.05),and for the patients with liver cirrhosis,the patients with GT3 infection had a significantly younger age than those with GT1 infection(52.1±0.5 years vs 59.4±0.9 years,P<0.001)or GT2 infection(52.1±0.5 years vs 58.1±1.1 years,P<0.001).Among the patients with GT3 infection,male patients accounted for 77.9%and the patients with liver cirrhosis accounted for 46.2%,which were significantly higher than those among the patients with GT1,GT2 or GT6 infection(all P<0.001).At baseline,the patients with GT3 infection had significantly higher levels of alanine aminotransferase(ALT)and aspartate aminotransferase(AST)than those with GT1 or GT2 infection,significantly higher aspartate aminotransferase-to-platelet ratio index(APRI)and fibrosis-4(FIB4)than those with GT1,GT2 or GT6 infection,a significantly lower platelet count(PLT)than those with GT2 or GT6 infection,a significantly higher level of alpha-fetoprotein than those with GT2 or GT6 infection,and a significantly lower level of albumin(Alb)than those with GT6 infection(all P<0.05).There were no significant differences between the patients with GT3a infection and those with GT3b infection in age,sex,the proportion of patients with liver cirrhosis,comorbidities,HCV RNA quantification,PLT,ALT,AST,alkaline phosphatase,Alb,APRI,and FIB-4(all P>0.05).The multivariate logistic regression analysis showed that PLT≤150×109/L(odds ratio[OR]=10.72,95%confidence interval[CI]:5.76-35.86,P<0.001)and Alb≤35 g/L(OR=3.74,95%CI:1.22-11.45,P=0.021)were risk factors for liver cirrhosis.Conclusion Most CHC patients with GT3 infection are male in Northwest China,and compared with the patients with other genotypes,such patients tend to have a younger age of onset and higher degrees of liver inflammation activity and fibrosis.Low PLT and a low level of Alb are risk factors for progression to liver cirrhosis in CHC patients with GT3 infection.

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