1.Etiological analysis and treatment of jaundice after liver transplantation during mid-later stage
Hong CHEN ; Xu WANG ; Qing ZHANG ; Tieyan FAN ; Yujian NIU ; Zhongyang SHEN
Chinese Journal of Organ Transplantation 2012;33(2):97-100
ObjectiveTo analyze the etiologies and diagnosis of jaundice after liver transplantation during mid later stage and summarize the experience of clinical practice.Methods822 liver transplantation patients were collected from the Department of Internal Medicine, Organ Transplantation Institute in General Hospital of Chinese People's Armed Police Forces between June 2005 and Dec.2008.The clinical data of these cases were analyzed retrospectively.ResultsAmongst 822 patients,129 experienced jaundice after liver transplantation and the occurrence of jaundice ranged from 43 days to 39 months postoperation.Total bilirubin levels were from 27.4 to 503 μmol/L.The etiologies of jaundice and its percentage were as follow:59 cases of biliary complications (45.7%),36 of rejection (27.8% ),11 cases of virus infection (8.5%),5 cases of drug-induced hepatic injury (3.9%),4 cases of tumor recurrence (3.1%),4 cases of Gilbert syndrome (3.1%),3.cases of dysfunction of papillary muscle (2.3%),2 cases of vascellum complication (1.6%),2 cases of radiation hepatitis (1.6%),1 case of hepatapostema (0.8%),2 cases of unknown reasons (1.6%),respectively.The jaundice of most patients (93%) got released while small part of patients (7%)failed to treatment,of whom 5 cases received liver re-transplantation and 4 cases died of disease progression.ConclusionThe etiologies of jaundice after liver transplantation during mid-later stage are diversiform and complex.And the etiological diagnosis is the premise to treat effectively.
2.Comparison of efficacies of hepatectomy and liver transplantation for patients with hepatocellular carcinoma fulfilling the Milan criteria
Yujian XIA ; Yi JIANG ; Qiucheng CAI ; Fan PAN ; Xiaojin ZHANG ; Lizhi Lü
Chinese Journal of Digestive Surgery 2012;(6):526-529
Objective To compare the efficacies of hepatectomy and liver transplantation for patients with hepatocellular carcinoma (HCC) fulfilling the Milan criteria.Methods From July 2002 to February 2009,121 patients with HCC combined with hepatic cirrhosis fulfilling the Milan criteria were admitted to the Fuzhou General Hospital.Eighty-nine patients who received hepatectomy were in the hepatectomy group,and 32 patients who received liver transplantation were in the liver transplantation group.There were no significant difference in the age,gender,etiology of liver disease,the size of the largest tumor,number of tumors,microscopic venous invasion,microsatellite lesion and tumor differentiation between the 2 groups.The clinical data of the patients in the 2 groups were retrospectively analyzed.The overall survival and disease-free survival were evaluated by Kaplan-Meier method,and differences in survival rates between the 2 groups were determined by Log-rank test.COX proportional hazard was used for univariate and multivariate analysis to evaluate the risk factors for prognosis.Results The median period of follow-up was 37 months.The 1-,3-,5-year survival rates were 86%,63% and 44% in the hepatectomy group,and 87%,70% and 62% in the liver transplantation group.There was no significant difference in the overall survival rate between the 2 groups (x2 =1.092,P > 0.05).The 1-,3-,5-year disease-free survival rates were 68%,44% and 26% in the hepatectomy group,and 80%,65% and 52% in the liver transplantation group.There was a significant difference in the disease-free survival rate between the 2 groups (x2 =4.712,P < 0.05).The result of univariate analysis revealed that microscopic venous invasion and microsatellite lesion were significantly correlated with the survival (Wald =9.625,7.340,P < 0.05),and the result of multivariate analysis indicated that microscopic venous invasion was the independent risk factor influencing the survival (Wald =5.008,P < 0.05).Conclusions As for patients with HCC fulfilling the Milan criteria,the overall survival rate of patients who received hepatectomy is not different from those who received liver transplantation,but the disease-free survival rate of patients who received liver transplantation is higher than those who received hepatectomy.Microscopic venous invasion is an independent risk factor influencing the survival.
3.Thestudyofapparentdiffusioncoefficientinmolecularsubtypeofnonmassenhancedbreastcancer
Yujian ZOU ; Xiaolin ZHENG ; Xianmiao FAN ; Yan LI ; Bihua LIU ; Wei ZHOU
Journal of Practical Radiology 2019;35(7):1067-1072
Objective ToevaluatevaluesofADCofDWIinmolecularsubtypeofnonmassenhancedbreastcancerandprovidereference forclinicaltherapeuticplan.Methods Nonmassenhancedbreastcancerincluding46casesofductalcarcinomainsitu(DCIS)and58 casesofinvasiveductalcancer(IDC)wereprovedbyhistopathologyandexperiencedMRIofroutinesequence,DWIanddynamicenhancement.All thepatientsweredividedintobothgroups,DCISgroupandIDCgroup.Accordingtoimmunohistochemicalcharacteristic,molecularsubytpes,Luminal A,LuminalBandnon-Luminalwerefurthergroupedineachgroup.TheADCvaluesoflesionsweremeasuredonADCmapsofb=0s/mm2and b=800s/mm2.TheADCvaluesofnormalbreastgland,DCISandIDC,ofmolecularsubtypeinternaleachgroup,ofsamemolecular subtypebetweengroupswerestatisticallycomparedI.fthedatahadmarkeddifference,ROCcurveofADCvaluesweredrewfortestingtheefficacy diagnosis.Results TheROImeasuredwere104positionsinnormalglands,86inDCISand115inIDCinwhichtheADCwererespectively (1.77±0.27)mm2/s,(1.08±0.14)mm2/sand (0.89±0.15)mm2/sthathadstatisticaldifference.TheADCvaluesofLuminalA, LuminalBandnon-LuminalinDCISwererespectively(11.1±01.5)mm2/s,(1.04±0.13)mm2/sand(1.04±0.13)mm2/sthathadn’tstatistical difference.TheADCvaluesofLuminalA,LuminalBandnon-LuminalinIDCwererespectively(0.95±0.19)mm2/s,(0.87±0.13)mm2/sand (0.84±0.15)mm2/sthathadstatisticaldifference.TheADCvalueshadstatisticaldifferenceinsame molecularsubtypebetween DCISandIDC.InanalysisofROCofIDC,AUCofADCvalueswererespectively0.561,0.632and0.520,theirsensitivity>81%,but specificitywaslower.Conclusion TheADCvaluesofIDCinLuminalA wasmarkedhigherthanLuminalBandADCvaluesofnon-Luminalwaslowest.TheADCvaluesofLuminalA,LuminalBandnon-LuminalinDCISwerehigherthancorrespondingmolecular subtypeofIDCthatmeansADCvaluescouldindicatemolecular subtypeinformationofbreastcancerandprovidereferencefor clinicaltherapeuticplan.
4.Research progress of Alzheimer's disease and intestinal microecology
Yujian FAN ; Jing LIU ; Peichang WANG ; Jingrong CAO
International Journal of Laboratory Medicine 2024;45(18):2244-2249
Alzheimer's disease(AD)is one of the most common types of dementia in clinical practice.The increased permeability of the gut and blood-brain barrier caused by intestinal microecological dysbiosis may be an important incentive to affect the incidence of AD.Gut microbiota regulates the central nervous system through the gut microbiota-gut-brain axis(gut-brain axis),and plays an important role in the cognitive func-tion,occurrence and development of clinical symptoms in AD patients.This review comprehensively reviewed the current literature on the relationship between gut microbiota dysregulation and inflammatory cytokine changes in AD,and the treatment of AD targeting with gut microbiota,so as to clarify the new progress in the influence of intestinal microecology changes on the cognitive function of AD patients,the potential diagnosis in the early onset of AD,and the potential mechanism of gut microbiota participating in the regulation of AD.It provides a new idea for the treatment strategy of AD.
5. Clinical analysis of de novo HBV infection after liver transplantation in non-HBV- related liver disease
Bacui ZHANG ; Hong CHEN ; Zhongyang SHEN ; Xu WANG ; Tieyan FAN ; Jun LI ; Qing ZHANG ; Xinguo CHEN ; Li LI ; Jun LI ; Yujian NIU
Chinese Journal of Hepatology 2018;26(5):377-381
Objective:
The aim of this study was to summarize and analyze the clinical features and characteristics of de novo HBV infection after liver transplantation in non-HBV-related liver disease.
Methods:
We retrospectively analyzed the clinical data of 13 patients with new HBV infection in 376 cases of liver transplantation patients with non-HBV related liver diseases from April 2002 to December 2013 in our hospital.
Results:
Among 376 patients with non-HBV-related liver disease after liver transplantation, 13 patients developed new HBV infection, and the rate of new HBV infection was 3.46%. Of the 13 cases, 5 were males and 8 were females. The follow-up time was 14.7 -128.7 months, and the average time from surgery to new HBV infection was 19.06 months. The primary diseases were as follows: 5 cases of primary biliary cholangitis, 3 cases of alcoholic liver disease, 2 cases of drug-induced liver damage, 1 cases of post-hepatitis C cirrhosis, congenital biliary atresia and congenital liver fibrosis. All patients were positive for HBsAg, HBeAg, anti-HBc, 11 were positive for HBV DNA, and 2 were negative for HBV DNA. 6 cases had abnormal liver function and 7 cases had normal liver function. All patients were treated with antiviral therapy with nucleoside (acid) analogues. HBsAg was negative in 6 patients; HBsAg remained positive in 7 cases, including HBsAg, HBeAg, anti-HBc positive in 6 cases, HBsAg, anti-HBe, anti- HBc was positive in 1 case, HBV DNA was still positive in 1 patient, and HBV DNA was negative in 6 patients; liver function was normal in all patients.
Conclusion
Non-HBV- related liver transplantation are high-risk group of new HBV infection, with the highest incidence of autoimmune liver disease. It is speculated that it may be related to the long-term use of hormones after the transplantation. The prognosis of newly diagnosed HBV infection after liver transplantation is fine as long as it can be found and treated early.
6.Cloning, expression and characterization of HSP gene from Eimeria tenella.
Yan YAN ; Hongyu HAN ; Bing HUANG ; Qiping ZHAO ; Hui DONG ; Lianlian JIANG ; Yujian LI ; Yujuan FAN ; Qian YAO
Chinese Journal of Biotechnology 2009;25(8):1121-1129
In order to study the functions of the HSPs (Heat shock proteins) of Eimeria tenella, we cloned a novel gene (which designated EtHSP) coding HSP of Eimeria tenella by RT-PCR and RACE (Rapid-amplification of cDNA ends). The full-length cDNA sequence of EtHSP was 1802 bp, containing a 1455 bp ORF (Open reading frame) (GenBank Accession No. FJ911605) encoding a deduced protein of 484 amino acids. Real-time PCR revealed that the mRNA level of EtHSP was much higher in sporozoites of E. tenella than other developmental stages (unsporulated oocysts, sporulated oocysts and merozoites). We constructed the recombinant plasmids pET28a(+)-EtHSP, then transformed it into E. coli BL21(DE3) for expression. SDS-PAGE indicated that the fusion protein was expressed in included bodies, with peak expression 6 h after induction by IPTG Western blotting revealed that the protein was specifically recognized by polyclonal antibodies against E. tenella, showing that the fusion protein was native antigen.
Animals
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Chickens
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Eimeria tenella
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genetics
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metabolism
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Escherichia coli
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genetics
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metabolism
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Heat-Shock Proteins
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genetics
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immunology
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metabolism
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Inclusion Bodies
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metabolism
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Male
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Molecular Sequence Data
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Open Reading Frames
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genetics
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Rabbits
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Recombinant Fusion Proteins
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genetics
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immunology
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metabolism
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Sequence Analysis, Protein
7.Antibody-platinum(Ⅳ)prodrugs conjugates for targeted treatment of cutaneous squamous cell carcinoma
Yin XIANGYE ; Zhuang YINGJIE ; Song HAIQIN ; Xu YUJIAN ; Zhang FAN ; Cui JIANXIN ; Zhao LEI ; Yu YINGJIE ; Zhang QIXU ; Ye JUN ; Chen YOUBAI ; Han YAN
Journal of Pharmaceutical Analysis 2024;14(3):389-400
Antibody-drug conjugates(ADCs)are a new type of targeting antibodies that conjugate with highly toxic anticancer drugs via chemical linkers to exert high specificity and efficient killing of tumor cells,thereby attracting considerable attention in precise oncology therapy.Cetuximab(Cet)is a typical antibody that offers the benefits of good targeting and safety for individuals with advanced and inoperable cutaneous squamous cell carcinoma(cSCC);however,its anti-tumor activity is limited to a single use.Cisplatin(CisPt)shows good curative effects;however,its adverse effects and non-tumor-targeting ability are major drawbacks.In this study,we designed and developed a new ADC based on a new cytotoxic platinum(Ⅳ)prodrug(C8Pt(Ⅳ))and Cet.The so-called antibody-platinum(Ⅳ)prodrugs conjugates,named Cet-C8Pt(Ⅳ),showed excellent tumor targeting in cSCC.Specifically,it accurately delivered C8Pt(Ⅳ)into tumor cells to exert the combined anti-tumor effect of Cet and CisPt.Herein,metabolomic analysis showed that Cet-C8Pt(Ⅳ)promoted cellular apoptosis and increased DNA damage in cSCC cells by affecting the vitamin B6 metabolic pathway in tumor cells,thereby further enhancing the tumor-killing ability and providing a new strategy for clinical cancer treatment using antibody-platinum(Ⅳ)prodrugs conjugates.