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1.
Artigo em Inglês | MEDLINE | ID: mdl-38232715

RESUMO

OBJECTIVES: To identify an optimal magnetic resonance imaging (MRI)-based classification for the severity of adenomyosis and explore the factors associated with disease severity (dysmenorrhea or menorrhagia). DESIGN AND PARTICIPANTS: Several classifications based on MRI have been proposed, and their phenotypes are reported to be associated with the severity of adenomyosis. However, a consensus classification based on MRI findings has not yet been reached. Our study was designed to retrospectively analyze data from a cohort of patients in the Affiliated Nanchong Central Hospital of North Sichuan Medical College from June 2017 to December 2021 before focused ultrasound ablation surgery (FUAS), to identify the optimal classification of adenomyosis severity from different classification criteria and explore factors associated with the presence of symptoms. METHODS: The proportions of disease severity among different classification groups were compared to obtain the one generating the most considerable chi-square value, which was identified as the optimal classification for informing disease severity. A logistic regression model was constructed to explore factors associated with disease severity. RESULTS: Classification of Kobayashi H (classification 4) concerning the affected areas and size (volumes of lesions) was recognized as the optimal one, which identified dysmenorrhea (χ2=18.550, p-value=0.002) and menorrhagia (χ2=15.060, p-value=0.010) secondary to adenomyosis. For volumes of uterine wall <2/3, the dysmenorrhea rate in subtype-4 was higher than that in subtype-1 (χ2=4.114, p-value=0.043), and the dysmenorrhea rate in subtype-5 was higher than that in subtype-2 (χ2=4.357, p-value=0.037). Age (OR=0.899, 95%CI=0.810~0.997, p-value=0.044) and external phenotype (OR=3.588, 95%CI=CI 1.018~12.643, p-value=0.047) were associated with dysmenorrhea. Concerning volumes of uterine wall ≥2/3, the menorrhagia rate in subtype-3 remarkably increased compared with that in subtype-6 (χ2=9.776, p-value=0.002), and internal phenotype was identified as an independent factor associated with menorrhagia (OR=1.706, 95%CI=1.131~2.573, p-value=0.011). LIMITATIONS: Patients in our study were all included before FUAS, which limited our result interpretation for the general patient population. CONCLUSIONS: MRI-based classification 4 is identified as an optimal classification for informing the severity of adenomyosis. The phenotype of classification is the main characteristic associated with disease severity.

2.
J Magn Reson Imaging ; 59(5): 1787-1797, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-37671487

RESUMO

BACKGROUND: A referenced MRI-based classification associated with focused ultrasound ablation surgery (FUAS) outcomes is lacking in adenomyosis. PURPOSE: To identify an MRI-based classification system for informing the FUAS outcomes. STUDY TYPE: Retrospective. POPULATION: Patients with FUAS for adenomyosis, were divided into a training set (N = 643; 355 with post-FUAS gonadotropin-releasing hormone/levonorgestrel, 288 without post-FUAS therapy) and an external validation set (N = 135; all without post-FUAS therapy). FIELD STRENGTH/SEQUENCE: 1.5 T, turbo spin-echo T2-weighted imaging and single-shot echo-planar diffusion-weighted imaging sequences. ASSESSMENT: Five MRI-based adenomyosis classifications: classification 1 (C1) (diffuse, focal, and mild), C2 (intrinsic, extrinsic, intramural, and indeterminate), C3 (internal, adenomyomas, and external), C4 (six subtypes on areas [internal or external] and volumes [<1/3 or ≥2/3]), and C5 (internal [asymmetric or symmetric], external, intramural, full thickness [asymmetric or symmetric]) for FUAS outcomes (symptom relief and recurrence). STATISTICAL TESTS: The optimal classification was significantly associated with the most subtypes of FUAS outcomes. Relating to the timing of recurrence was measured using Cox regression analysis and median recurrence time was estimated by a Kaplan-Meier curve. A P value <0.05 was considered statistically significant. RESULTS: Dysmenorrhea relief and recurrence were only associated with C2 in training patients undergoing FUAS alone. Compared with other subtypes, the extrinsic subtype of C2 was significantly associated with dysmenorrhea recurrence in the FUAS group. Besides, the median dysmenorrhea recurrence time of extrinsic subtype was significantly shorter than that of other subtypes (42.0 months vs. 50.3 months). In the validation cohort, C2 was confirmed as the optimal system and its extrinsic subtype was confirmed to have a significantly shorter dysmenorrhea recurrence time than other subtypes. DATA CONCLUSION: Classification 2 can inform dysmenorrhea relief and recurrence in patients with adenomyosis undergoing FAUS only. Itsextrinsic subtype was associated with an earlier onset of dysmenorrhea recurrence after treatment. EVIDENCE LEVEL: 3 TECHNICAL EFFICACY: Stage 5.


Assuntos
Adenomiose , Ablação por Ultrassom Focalizado de Alta Intensidade , Feminino , Humanos , Adenomiose/diagnóstico por imagem , Adenomiose/cirurgia , Dismenorreia/diagnóstico por imagem , Dismenorreia/complicações , Dismenorreia/cirurgia , Resultado do Tratamento , Estudos Retrospectivos , Ablação por Ultrassom Focalizado de Alta Intensidade/métodos , Imageamento por Ressonância Magnética/métodos , Ultrassonografia de Intervenção/métodos
3.
Heliyon ; 9(4): e14816, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37035389

RESUMO

Increasing evidence has manifested that circular RNAs (circRNAs) exhibited critical function in regulating various signaling pathways related to hepatocellular carcinoma (HCC) recurrence. However, the role and mechanism of the circRNAs in the HCC early recurrence remain elusive. In this study, high-throughput RNA-sequencing (RNA-seq) analysis was conducted to identify the expression profile of circRNAs in HCC tissues and circ_0005218 was identified as one circRNA that significantly up-regulated in early recurrent HCC tissues. And patients with high expression of circ_0005218 showed worsen overall survival (OS) and disease-free survival (DFS). Moreover, the promotion effects of circ_0005218 on HCC cells in term of proliferation, invasion and metastasis were confirmed both in vitro and vivo by gain- and loss-of function assays. In addition, dual-luciferase reporter assays showed that circ_0005218 could competitively bind to micro-RNA (miR)-31-5p. Furthermore, we showed that suppression of CDK1 by miR-31-5p could be partially rescued by up-regulating circ_0005218. Taken together, the present study indicates that circ_0005218 absorbed miR-31-5p as a sponge to weaken its suppression on CDK1 expression, and thus boost HCC cell invasion and migration, which would act as a potential biomarker to predict the HCC early recurrence and as a new therapeutic target for treatment of HCC.

4.
Medicine (Baltimore) ; 100(30): e26762, 2021 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-34397721

RESUMO

ABSTRACT: Reliable biomarkers are of great significance for the treatment and diagnosis of hepatocellular carcinoma (HCC). This study identified potential prognostic epithelial-mesenchymal transition related lncRNAs (ERLs) by the cancer genome atlas (TCGA) database and bioinformatics.The differential expression of long noncoding RNA (lncRNA) was obtained by analyzing the lncRNA data of 370 HCC samples in TCGA. Then, Pearson correlation analysis was carried out with EMT related genes (ERGs) from molecular signatures database. Combined with the univariate Cox expression analysis of the total survival rate of hepatocellular carcinoma (HCC) patients, the prognostic ERLs were obtained. Then use "step" function to select the optimal combination of constructing multivariate Cox expression model. The expression levels of ERLs in HCC samples were verified by real-time quantitative polymerase chain reaction.Finally, we identified 5 prognostic ERLs (AC023157.3, AC099850.3, AL031985.3, AL365203.2, CYTOR). The model showed that these prognostic markers were reliable independent predictors of risk factors (P value <.0001, hazard ratio [HR] = 2.400, 95% confidence interval [CI] = 1.667-3.454 for OS). In the time-dependent receiver operating characteristic analysis, this prognostic marker is a good predictor of HCC survival (area under the curve of 1 year, 2 years, 3 years, and 5 years are 0.754, 0.720, 0.704, and 0.662 respectively). We analyzed the correlation of clinical characteristics of these prognostic markers, and the results show that this prognostic marker is an independent factor that can predict the prognosis of HCC more accurately. In addition, by matching with the Molecular Signatures Database, we obtained 18 ERLs, and then constructed the HCC prognosis model and clinical feature correlation analysis using 5 prognostic ERLs. The results show that these prognostic markers have reliable independent predictive value. Bioinformatics analysis showed that these prognostic markers were involved in the regulation of EMT and related functions of tumor occurrence and migration.Five prognostic types of ERLs identified in this study can be used as potential biomarkers to predict the prognosis of HCC.


Assuntos
Carcinoma Hepatocelular/metabolismo , Transição Epitelial-Mesenquimal , Neoplasias Hepáticas/metabolismo , RNA Longo não Codificante/metabolismo , Carcinoma Hepatocelular/diagnóstico , Humanos , Neoplasias Hepáticas/diagnóstico , Prognóstico
5.
Hum Vaccin Immunother ; 17(7): 2311-2318, 2021 07 03.
Artigo em Inglês | MEDLINE | ID: mdl-33545015

RESUMO

Background Rotavirus infections, prevalent in human populations, are caused mostly by group A viruses. Immunization against rotaviruses in infancy is currently the most effective and economical strategy to prevent rotavirus infection. This study evaluated the safety of a novel hexavalent rotavirus vaccine and analyzed its dose and immunogenicity.Methods This randomized, double-blinded, placebo-controlled phase I clinical trial enrolled healthy adults, toddlers, and infants in Zhengding County, Hebei Province, northern China. 40 adults and 40 children were assigned in a 2:1:1 ratio to receive one vaccine dose, placebo 1, and placebo 2, respectively. 120 6-12 week old infants were assigned equivalently into 3 groups. The infants in each group were assigned in a 2:1:1 ratio to receive three doses of vaccine, placebo 1, and placebo 2, at a 28-day interval. Adverse events (AEs) until 28 days after each dose and serious adverse events (SAEs) until 6 months after the third dose were reported. Virus shedding until 14 days after each dose in infants was tested. Geometric mean concentrations (GMCs) and seroconversion rates were measured for anti-rotavirus IgA by using an enzyme-linked immunosorbent assay (ELISA).Results The solicited and unsolicited AE frequencies and laboratory indexes were similar among the treatment groups. No vaccine-related SAEs were reported. The average percentage of rotavirus vaccine shedding in the infant vaccine groups was 5.00%. The post-3rd dose anti-rotavirus IgA antibody geometric mean concentrations (GMC) and seroconversion rate were higher in the vaccine groups than in the placebo groups.Conclusions The novel oral hexavalent rotavirus vaccine was generally well-tolerated in all adults, toddlers and infants, and the vaccine was immunogenic in infants.


Assuntos
Infecções por Rotavirus , Vacinas contra Rotavirus , Rotavirus , Adulto , Anticorpos Antivirais , China , Método Duplo-Cego , Humanos , Imunogenicidade da Vacina , Lactente , Infecções por Rotavirus/prevenção & controle , Vacinas contra Rotavirus/efeitos adversos , Vacinas Atenuadas/efeitos adversos , Vacinas Combinadas
6.
Hepatol Int ; 15(1): 114-126, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33495903

RESUMO

BACKGROUND: Portal vein tumor thrombus (PVTT) and microvascular invasion (MVI) are types of intrahepatic vascular metastasis of hepatocellular carcinoma (HCC) and are highly correlated with poor prognosis. However, the underlying biomarkers of PVTT and MVI are unclear. METHODS: We identified a PVTT/MVI-associated gene S100P by cDNA microarray analysis, and assess the potential value of serum S100P measurement in the differential diagnosis of HCC and prediction of MVI status with large retrospective and perspective cohort studies. RESULTS: The mRNA and protein of S100P was increased in HCCs with PVTT or MVI. High S100P immunostaining in tumors was correlated with inferior tumor-free survival. Serum S100P values discriminated patients with HCCs from those with benign liver tumors, and it showed predictive potential of MVI status in both retrospective and perspective cohorts. S100P may regulate HCC tumorigenicity and invasive ability; S100P also was associated with up-regulation of CD44, which may mediate HCC cell adhesion to form PVTT/MVI. CONCLUSIONS: Serum S100P may be a novel differential diagnostic marker for HCC and a potential predictor of MVI status pre-surgery for HCC patients. S100P overexpression in HCC is highly correlated with the formation of PVTT and MVI, which may make S100P as a potential therapeutic target for HCC metastasis.


Assuntos
Proteínas de Ligação ao Cálcio/metabolismo , Carcinoma Hepatocelular , Neoplasias Hepáticas , Proteínas de Neoplasias/metabolismo , Trombose , Biomarcadores , Proteínas de Ligação ao Cálcio/genética , Carcinoma Hepatocelular/complicações , Humanos , Neoplasias Hepáticas/complicações , Invasividade Neoplásica , Veia Porta , Prognóstico , Estudos Retrospectivos , Trombose/etiologia
7.
Int J Mol Med ; 43(1): 103-116, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30365068

RESUMO

Liver fibrosis is a serious threat to human health, and there is currently no effective clinical drug for treatment of the disease. Although Galectin­1 is effective, its role in liver function, inflammation, matrix metalloproteinases and the activation of hepatic stellate cells (HSCs) remains to be elucidated. The aim of the present study was to elucidate the effect of Galectin­1 on the activation, proliferation and apoptosis of HSCs in a mouse model of liver fibrosis. Following successful model establishment and tissue collection, mouse HSCs (mHSCs) were identified and an mHSC line was constructed. Subsequently, to determine the role of Galectin­1 in liver fibrosis, the expression levels of transforming growth factor (TGF)­ß1, connective tissue growth factor (CTGF) and α­smooth muscle actin (α­SMA) pre­ and post­transfection were evaluated by reverse transcription­quantitative polymerase chain reaction and western blot analyses. In addition, the effects of Galectin­1 on the biological behavior and mitochondrial function of mHSCs were determined using a 3­(4,5­dimethylthiazol­2­yl)­2,5­diphenyltetrazolium bromide assay, flow cytometry and a scratch test. It was first observed that the expression levels of Galectin­1, TGF­ß1, CTGF and α­SMA were downregulated by silencing the gene expression of Galectin­1. Additionally, silencing the gene expression of Galectin­1 inhibited cell cycle progression, proliferation and migration but induced the apoptosis of mHSCs from mice with liver fibrosis. Furthermore, the in vivo experimental results suggested that silencing the gene expression of Galectin­1 improved liver fibrosis. Collectively, it was concluded that silencing the gene expression of Galectin­1 ameliorates liver fibrosis and that functionally suppressing Galectin­1 may be a future therapeutic strategy for liver fibrosis.


Assuntos
Apoptose , Galectina 1/genética , Inativação Gênica , Células Estreladas do Fígado/patologia , Cirrose Hepática/genética , Cirrose Hepática/patologia , Actinas/metabolismo , Alanina Transaminase/metabolismo , Albuminas/metabolismo , Animais , Aspartato Aminotransferases/metabolismo , Bilirrubina/metabolismo , Ciclo Celular/genética , Movimento Celular/genética , Proliferação de Células , Sobrevivência Celular , Fator de Crescimento do Tecido Conjuntivo/metabolismo , Modelos Animais de Doenças , Galectina 1/metabolismo , Células Estreladas do Fígado/metabolismo , Masculino , Camundongos Endogâmicos C57BL , Mitocôndrias/metabolismo , Fator de Crescimento Transformador beta1/metabolismo
8.
Cell Physiol Biochem ; 48(3): 863-879, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30032146

RESUMO

BACKGROUND/AIMS: Immune tolerance is considered the only way to manage liver transplantation (LT). The current study hypothesized that galectin-1 via the activation of hepatic stellate cells (HSCs) is capable of inducing immune tolerance in LT. METHODS: Lentiviral-mediated gene knockdown and overexpression of galectin-1 were conducted in HSC-T6 cells. Reverse transcription quantitative polymerase chain reaction and western blot analysis were used to determine galectin-1 expression. LT was performed in 20 C57BL/J6 mice and 20 C3H mice. T-cells were assigned into control, Galectin-1 shRNA, Galectin-1 OE, Galectin-1 OE SB431542, Galectin-1 OE Sulforaphane, Galectin-1 OE Y27632, and Galectin-1 OE UO126 groups. CFSE, flow cytometry, and ELISA were respectively employed to detect T-cell proliferation, CD4+/ CD8+ ratio and IL-2, IL-10 and TGF-ß levels. After establishing mouse models of immune tolerance and acute rejection, immunohistochemistry, TUNEL, and immunofluorescence assay were performed to determine CD3+ expression, apoptosis, α-SMA, and desmin. Mouse models of CCl4-induced liver fibrosis were established, followed by assigning the control1 and CCl4 groups. ELISA was used to determine ALT, AST, TBIL and Hyp levels. A total of 3 C57BL/J6 mice (donor) and 6 C3H mice (recipient) were grouped into the control2 and UO126 groups, followed by ELISA detection for IL-2, IL-10 and TGF-ß. RESULTS: In T-cells, galectin-1 shRNA increased cell proliferation and IL-2 levels with reduced IL-10 and TGF-ß levels, while the Galectin-1 OE and Galectin-1 OE UO126 groups revealed the opposite results. Galectin-1 overexpression elevated the ratio of the CD4+ to CD8+ T-cells. The acute rejection group exhibited enhanced desmin expression and reduced α-SMA expression. Compared with the immune tolerance group, the acute rejection group displayed higher galectin-1 expression, a positive expression rate of CD3+ T-cells, and an increased apoptosis rate. Compared with the control1 group, the CCl4 group exhibited higher galectin-1 expression, ALT, AST, TBIL, and Hyp levels, α-SMA expression and CD4+/CD8+ T-cell ratio, in addition to decreased expression of desmin. Compared with the control2 group, UO126 increased galectin-1 expressions, IL-10 and TGF-ß levels and reduced IL-2 levels with inactivated HSCs. CONCLUSIONS: The findings of the current study indicated that the overexpression of galectin-1 promoted the activation of HSCs, which reduced the inflammatory response by exerting immunosuppressive effects and accordingly contributed to immune tolerance in LT.


Assuntos
Galectina 1/metabolismo , Tolerância Imunológica , Transplante de Fígado , Actinas/metabolismo , Animais , Butadienos/farmacologia , Linfócitos T CD4-Positivos/citologia , Linfócitos T CD4-Positivos/metabolismo , Linfócitos T CD8-Positivos/citologia , Linfócitos T CD8-Positivos/metabolismo , Linhagem Celular , Proliferação de Células/efeitos dos fármacos , Citocinas/análise , Citocinas/metabolismo , Galectina 1/antagonistas & inibidores , Galectina 1/genética , Células Estreladas do Fígado/citologia , Células Estreladas do Fígado/efeitos dos fármacos , Células Estreladas do Fígado/metabolismo , Cirrose Hepática/induzido quimicamente , Cirrose Hepática/terapia , Masculino , Camundongos , Camundongos Endogâmicos C3H , Camundongos Endogâmicos C57BL , Nitrilas/farmacologia , Interferência de RNA , RNA Interferente Pequeno/metabolismo , Transdução de Sinais/efeitos dos fármacos
9.
Hepatobiliary Pancreat Dis Int ; 12(2): 160-4, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23558070

RESUMO

BACKGROUND: Hepatolithiasis is very common in East Asia. It is benign in nature, but has a high recurrence rate. It is likely to lead to biliary cirrhosis and increase the risk of cholangiocarcinoma. Hence, the treatment of hepatolithiasis is difficult but vital. In this report, we present a novel approach to manage hepatolithiasis using the choledochoscopic Frequency-Doubled Double pulse Nd:YAG (FREDDY) laser lithotripsy combined with or without hepatectomy. METHODS: Between July 2009 and October 2012, 45 patients underwent choledochoscopic FREDDY laser lithotripsy combined with or without hepatectomy (laser lithotripsy group). Forty-eight patients underwent a traditional operation (traditional method group) from January 2009 to June 2009. Comparative analysis was made of demographic and clinical characteristics of the two groups. RESULTS: The final stone clearance rate of the laser lithotripsy group was 93.3%, whereas that of the traditional method group was 85.4% (P=0.22). In the laser lithotripsy group, 2 patients experienced hemobilia and 3 patients had acute cholangitis. In the traditional method group, 3 patients had intraoperative hemorrhage, 1 patient had bile leakage, 6 patients had acute cholangitis, and 1 patient died of liver failure. Moreover, the operative time in the traditional method group was significantly longer than that in the laser lithotripsy group (P=0.01). The mean hospital stay of the patients in the traditional method group was longer than that in the laser lithotripsy group (9.8 vs 8.2 days, P=0.17). Recurrent intrahepatic bile duct stones were not found during the follow-up period in the two groups. CONCLUSION: Operative choledochoscopic FREDDY laser lithotripsy combined with or without hepatectomy may be an effective and safe treatment for hepatolithiasis.


Assuntos
Hepatectomia , Lasers de Estado Sólido , Litíase/terapia , Litotripsia a Laser/instrumentação , Hepatopatias/terapia , Adulto , Idoso , Terapia Combinada , Feminino , Hepatectomia/efeitos adversos , Hepatectomia/mortalidade , Humanos , Lasers de Estado Sólido/efeitos adversos , Tempo de Internação , Litíase/diagnóstico por imagem , Litíase/mortalidade , Litíase/cirurgia , Litotripsia a Laser/efeitos adversos , Litotripsia a Laser/mortalidade , Hepatopatias/diagnóstico por imagem , Hepatopatias/mortalidade , Hepatopatias/cirurgia , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Recidiva , Estudos Retrospectivos , Fatores de Tempo , Tomografia Computadorizada por Raios X , Resultado do Tratamento
11.
Hepatobiliary Pancreat Dis Int ; 7(4): 433-6, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18693183

RESUMO

BACKGROUND: Hepatic artery thrombosis (HAT) is a frequent complication following liver transplantation, but it is rarely caused by arcuate ligament compression of the celiac artery. This article mainly describes our experience in managing a patient with celiac artery stenosis and HAT after liver transplantation. METHODS: A 44-year-old man with a 15-year history of hepatitis B was admitted to our hospital for hepatocellular carcinoma. Before the operation, he received transarterial chemoembolization once, and pretransplant MR angiography indicated a suspected stenosis at the initiation of the celiac artery, while color Doppler showed normal blood flow in the arterial system. In this case, orthotopic liver transplantation was performed for radical cure of hepatocellular carcinoma. However, B-ultrasonography detected poor blood flow in the intra- and extra-hepatic artery on the first posttransplant day, and during exploratory laparotomy a thrombus was found in the hepatic artery. Thus, re-transplantation was conducted with a bypass between the graft hepatic artery and the recipient abdominal aorta with the donor's splenic artery. RESULTS: The patient made an uneventful recovery and color Doppler showed good blood flow in the artery and portal system. Histology confirmed extensive thrombosis in the left and right hepatic artery of the explanted graft, indicating HAT. CONCLUSIONS: Although HAT caused by celiac trunk compression is rarely reported in liver transplantation, the diagnosis should be considered in patients with pretransplant hepatic artery stenosis on angiography and abnormal blood flow on B-ultrasonography. Once HAT is formed, treatment such as thrombectomy or re-transplantation should be performed as early as possible.


Assuntos
Carcinoma Hepatocelular/cirurgia , Artéria Celíaca/patologia , Artéria Hepática , Ligamentos/patologia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/efeitos adversos , Trombose/etiologia , Adulto , Constrição Patológica , Artéria Hepática/patologia , Humanos , Ligamentos/cirurgia , Angiografia por Ressonância Magnética , Masculino , Reoperação , Síndrome , Trombose/patologia , Trombose/cirurgia , Resultado do Tratamento
12.
Arch Med Res ; 39(4): 420-8, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18375254

RESUMO

BACKGROUND: Acute rejection (AR) and hepatitis B virus (HBV) recurrence after liver transplantation (LT) are the two major complications leading to chronic graft dysfunction. Genomic polymorphisms in interleukin (IL)-10, tumor necrosis factor (TNF)alpha and transforming growth factor (TGF)beta1 genes have been found to affect the susceptibility to certain diseases. However, the relationship between cytokine gene polymorphisms and risk of AR as well as HBV recurrence after LT in Han Chinese has not been reported. The objective of the present study was to investigate the association of polymorphisms within these cytokine genes with the risk of AR as well as HBV recurrence. METHODS: One hundred eighty six Chinese LT recipients in which 41 patients developed AR and 29 patients experienced HBV recurrence were enrolled; 151 age- and gender-matched healthy individuals were selected as controls. Single-nucleotide polymorphisms (SNPs) at loci of IL-10 -1082, -819, -592, and TNFalpha -308, -238, as well as TGFbeta1 -988, -800, -509, +869, and +915 were determined by using DNA sequencing and then confirmed by restriction fragment length polymorphism (PCR-RFLP). Analyses of linkage disequilibrium and haplotype frequency were performed using Haploview program. RESULTS: The -819 and -592 polymorphisms in the IL-10 gene were in complete linkage (r(2) = 1). Another linkage was found at -509 and +869 in the TGFbeta1 gene (r(2) = 0.66). A significant difference was observed in the distribution of allelic frequencies at position -819 and -592 in the IL-10 gene between ARs and non-ARs (p = 0.036, OR = 1.134, 95% CI 0.999-1.287 and p = 0.036, OR = 1.134, 95% CI 0.999-1.287, respectively). After adjustment for a Bonferroni correction, there was no significant difference between the polymorphism and AR (p >0.05). Furthermore, the overall genotype distribution between HBV recurrence patients and non-HBV recurrence patients was also not significantly different (p >0.05). CONCLUSIONS: Our study suggests that gene polymorphisms of IL10, TNFalpha, and TGFbeta1 do not have a major independent role in AR and HBV recurrence after LT and may not be risk factors of AR and HBV recurrence after LT in Chinese liver transplant recipients.


Assuntos
Citocinas/genética , Rejeição de Enxerto/genética , Hepatite B/genética , Transplante de Fígado , Polimorfismo de Nucleotídeo Único , Povo Asiático , Frequência do Gene , Predisposição Genética para Doença , Haplótipos , Humanos , Interleucina-10/genética , Recidiva , Fator de Crescimento Transformador beta1/genética , Fator de Necrose Tumoral alfa/genética
13.
Chin Med J (Engl) ; 120(18): 1606-10, 2007 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-17908480

RESUMO

BACKGROUND: Although the use of hepatitis B immunoglobulin (HBIG) may lead to a significant reduction in recurrent hepatitis B virus (HBV) infection and improve the survival of patients who have undergone liver transplantation (LT) for hepatitis B-related diseases, the recurrence of the disease still remains at a lower level. Different clinical curative effects were observed in patients with the same HBV-related diseases and the same therapy. This study was undertaken to investigate whether the efficacy of HBIG is associated with FCGR3A gene polymorphisms in Chinese liver transplant patients. METHODS: Altogether 77 patients who had received liver transplantation for hepatitis B-related diseases with more than one-year survival after surgery were studied. The recurrence of HBV was characterized by the appearance of HBsAg in serum after the operation. The FCGR3A genotyping was performed using genomic DNA sequencing (ABI 3037). Single nucleotide polymorphism at nucleotide 559 was detected by Polyphred. RESULTS: Of the 77 patients, 14 were complicated with HBV recurrence post-transplant. The FCGR3A at nucleotide 559 TT was observed in 35 (45.5%) subjects, whereas TG in 31 (40.3%) and GG in 11 (14.3%). In the 559G carrier group (n = 42, 54.5%), the risk of HBV recurrence was 9.5%, and 1- and 2-year recurrence-free survival rates were 95.2% and 88.7%, respectively. In the 559G noncarrier group (n = 35, 45.5%), the risk of HBV recurrence was 28.6%, and 1- and 2-year recurrence-free survival rates were 74.3% and 69.3%, respectively. The risk of HBV recurrence and the recurrence-free survival rate were both statistically different between the 559G carrier and noncarrier groups (P < 0.05). CONCLUSIONS: A single nucleotide polymorphism (T/G) at position 559 of the FCGR3A gene was found in Chinese patients. The efficacy of HBIG in prophylaxis of HBV recurrence after LT is associated with the gene polymorphism, so detecting FCGR3A genotypes can be a clinical reference of the HBIG administration.


Assuntos
Imunoglobulinas/uso terapêutico , Transplante de Fígado , Polimorfismo Genético , Receptores de IgG/genética , Adulto , Feminino , Genótipo , Hepatite B/prevenção & controle , Humanos , Transplante de Fígado/efeitos adversos , Masculino , Pessoa de Meia-Idade , Prognóstico , Recidiva
14.
Zhonghua Wai Ke Za Zhi ; 44(3): 153-6, 2006 Feb 01.
Artigo em Chinês | MEDLINE | ID: mdl-16635341

RESUMO

OBJECTIVE: To summarize the experience of liver retransplantation for patients with poor graft function. METHODS: The clinical data of 9 patients undergone liver retransplantation at our center from April 1993 to April 2005 were retrospectively analyzed. The main indications for liver retransplantation at our center were early hepatic artery thrombosis (2/9), early portal vein thrombosis (1/9), and biliary tract complication (6/9). Of the 9 patients received liver retransplantation with cadaveric allografts, 3 received classic orthotopic liver transplantation, and 6 piggyback liver transplantation. Roux-en-Y biliary tract reconstruction was performed in 6 patients, Donor spleen vein was used as a conduit between donor portal vein and recipient portal vein in 1, and donor spleen artery as a conduit between donor hepatic artery and recipient aorta in 1. RESULTS: No perioperative mortality occurred. Of them, 5 had no complications after the operation, 1 had stricture in anastomotic stoma of portal vein, and 3 died in 6 months after the operation. CONCLUSIONS: Poor graft function due to biliary tract complications and vessel complications after primary liver transplantation are the chief indications of liver retransplantation. Liver retransplantation is the only suitable treatment of poor graft function.


Assuntos
Transplante de Fígado/métodos , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reoperação , Estudos Retrospectivos , Fatores de Tempo , Transplante Homólogo
15.
Zhonghua Wai Ke Za Zhi ; 43(9): 584-6, 2005 May 01.
Artigo em Chinês | MEDLINE | ID: mdl-15938930

RESUMO

OBJECTIVE: To review diagnosis and treatment experience of cytomegalovirus (CMV) infection after liver transplantation. METHODS: The clinical data of 96 patients receiving liver transplantation in our hospital from January 2001 to December 2002 were analyzed retrospectively. RESULTS: CMV infection occurred in 19 patients, blood IE-E antigen of CMV and PP65 antigen of CMV was detected in all the patients with CMV infection, 8 patients with CMV-IgM positivity, 3 of them presented with dyspnea, 4 with fever and 2 with jaundice, 14 patients had no symptoms of CMV infection. IE-E antigen of CMV and PP65 antigen of CMV in blood of 18 patients became negative after treatment with ganciclovir, 1 patients died from interstitial pneumonitis. CONCLUSIONS: Cytomegalovirus infection after liver transplantation is associated with many factors, the key point of CMV infection is prevention actively and early treatment after operation. The detection of blood antigen of CMV is necessary for early diagnosis and guiding treatment of CMV infection, ganciclovir is effective for treatment of CMV infection.


Assuntos
Antivirais/uso terapêutico , Infecções por Citomegalovirus/prevenção & controle , Ganciclovir/uso terapêutico , Transplante de Fígado/efeitos adversos , Adulto , Antígenos Virais/sangue , Citomegalovirus/imunologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/prevenção & controle , Estudos Retrospectivos
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