scholarly journals Effect of Hepatitis B Virus Infection on Sperm Quality and Outcomes of Assisted Reproductive Techniques in Infertile Males

2021 ◽  
Vol 8 ◽  
Author(s):  
Zichun Wang ◽  
Wanpeng Liu ◽  
Mingming Zhang ◽  
Minglei Wang ◽  
Huaying Wu ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Sperm Quality ◽  
Abortion Rate ◽  
Hbv Infection ◽  
Assisted Reproductive Techniques ◽  
Control Group ◽  
B Virus ◽  
Reproductive Techniques ◽  
Infertile Couples

Background: Hepatitis B virus (HBV) infection is one of the health problems and has adverse effects on public health. However, the consequences of male HBV carriers for assisted reproductive techniques (ART) remain unclear.Objective: To examine whether men with HBV would impact sperm quality and the intrauterine insemination (IUI)/ in vitro fertilization (IVF)/ intracytoplasmic sperm injection (ICSI) outcomes.Methods: We retrospectively analyzed data from 681 infertile couples for IUI/IVF/ICSI fresh cycle outcomes. Case group was 176 infertile couples with male HBV infection undergoing embryo transfer in our center (99 for IVF and 77 for ICSI) and 51 infertile couples for IUI. Negative control was 454 non-infected infertility couples, matched for female age, BMI and infertility duration (102 for IUI and 198 for IVF and 154 for ICSI).Results: Sperm viability among infertile men with HBV infection was significantly lower than control group (74.1 ± 13.7 vs. 77.0 ± 12.8, P < 0.01). Sperm motility was significantly decreased in HBV positive men in comparison to the control group (32.5 ± 14.6 vs. 35.5 ± 12.9, P < 0.05). In IVF/ICSI cycles, two groups had similar results in two pronuclear (2PN) fertilization rate, implantation rate, clinical pregnant rate and abortion rate (P > 0.05). There was also no difference in the clinical pregnant rate and abortion rate in IUI cycles (P > 0.05).Conclusion: Men with HBV infection will affect their sperm quality, but not affect the outcomes of ART.

scholarly journals Genotype-Specific Genomic Markers Associated with Primary Hepatomas, Based on Complete Genomic Sequencing of Hepatitis B Virus

2008 ◽  
Vol 82 (7) ◽  
pp. 3604-3611 ◽  
Author(s):  
Joseph J. Y. Sung ◽  
Stephen K. W. Tsui ◽  
Chi-Hang Tse ◽  
Eddie Y. T. Ng ◽  
Kwong-Sak Leung ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Rule Learning ◽  
Hbv Infection ◽  
Control Group ◽  
Hbv Genotype ◽  
B Virus ◽  
Genomic Markers ◽  
Genotype C ◽  
Complete Genomic

ABSTRACT We aimed to identify genomic markers in hepatitis B virus (HBV) that are associated with hepatocellular carcinoma (HCC) development by comparing the complete genomic sequences of HBVs among patients with HCC and those without. One hundred patients with HBV-related HCC and 100 age-matched HBV-infected non-HCC patients (controls) were studied. HBV DNA from serum was directly sequenced to study the whole viral genome. Data mining and rule learning were employed to develop diagnostic algorithms. An independent cohort of 132 cases (43 HCC and 89 non-HCC) was used to validate the accuracy of these algorithms. Among the 100 cases of HCC, 37 had genotype B (all subgenotype Ba) and 63 had genotype C (16 subgenotype Ce and 47 subgenotype Cs) HBV infection. In the control group, 51 had genotype B and 49 had genotype C (10 subgenotype Ce and 39 subgenotype Cs) HBV infection. Genomic algorithms associated with HCC were derived based on genotype/subgenotype-specific mutations. In genotype B HBV, mutations C1165T, A1762T and G1764A, T2712C/A/G, and A/T2525C were associated with HCC. HCC-related mutations T31C, T53C, and A1499G were associated with HBV subgenotype Ce, and mutations G1613A, G1899A, T2170C/G, and T2441C were associated with HBV subgenotype Cs. Amino acid changes caused by these mutations were found in the X, envelope, and precore/core regions in association with HBV genotype B, Ce, and Cs, respectively. In conclusion, infections with different genotypes of HBV (B, Ce, and Cs) carry different genomic markers for HCC at different parts of the HBV genome. Different HBV genotypes may have different virologic mechanisms of hepatocarcinogenesis.

scholarly journals FASandFASLGene Polymorphisms Are Not Associated with Hepatitis B Virus Infection Based on a Case-Control Study in a Brazilian Population

2013 ◽  
Vol 35 ◽  
pp. 741-746 ◽  
Author(s):  
Bárbara B. Santana ◽  
Maria Luana C. Viégas ◽  
Simone R. S. S. Conde ◽  
Marluísa O. G. Ishak ◽  
Ricardo Ishak ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Hbv Infection ◽  
Control Group ◽  
Active Chronic Hepatitis ◽  
Nucleotide Polymorphisms ◽  
Genotype Frequencies ◽  
Brazilian Amazon Region ◽  
B Virus

Objective. This study investigated the association of the single nucleotide polymorphisms (SNPs) in theFASandFASLgenes with the outcome of hepatitis B virus (HBV) infection.Methods. Blood samples were collected from 116 HBV-infected patients at the Hospital of the Santa Casa de Misericordia Foundation (Belém, PA, Brazil). Seronegative individuals were used as controls. DNA samples were extracted from the leukocytes and assayed using the polymerase chain reaction (PCR) followed by RFLP analysis with restriction endonucleases.Results. The frequencies of the mutant genotypes for -670FAS(GG), Ivs2nt-124FASL(GG), Ivs3nt-169FASL(ΔT/ΔT), and -844FASL(TT) were higher in the HBV patients, and theFAS-1377AA genotype was more frequent in the control group; however, the differences between the allele and genotype frequencies were not statistically significant. When the HBV patient population was divided into two groups (inactive carriers and active chronic hepatitis patients), the mutant genotypes were found to be more prevalent in the active chronic hepatitis group with respect to theFASgene polymorphisms; however, this difference was not statistically significant.Conclusions. The results suggest that the polymorphisms inFASandFASLgenes are not associated with HBV infection or even with the natural history of the infection in the Brazilian Amazon region.

scholarly journals NTCP gene polymorphisms and Hepatitis B virus infection status in a Ghanaian population

2020 ◽  
Author(s):  
Eric Nyarko ◽  
Christian Obirikorang ◽  
W.K.B.A. Owiredu ◽  
Evans Adu Asamoah ◽  
Emmanuel Acheampong ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Genetic Model ◽  
Additive Model ◽  
Minor Allele ◽  
Hbv Infection ◽  
Control Group ◽  
Case Group ◽  
Nucleotide Polymorphisms ◽  
B Virus

Abstract BackgroundSLC10A1 gene codes NTCP, a receptor through which the hepatitis B virus (HBV) gets access into hepatocytes - a stage of the viral cycle necessary for replication. Polymorphism variants of SLC10A1 play roles in HBV infection, viral clearance, treatment outcome, and complications, in diverse ethnic groups and countries. However, no such study has been conducted in the Ghanaian population, a country with HBV endemicity. Therefore, an exploratory study was conducted to investigate the presence of three (3) single nucleotide polymorphisms (SNPs) in the SLC10A1 gene (rs2296651, rs61745930, and rs4646287) and assessed the risk of HBV infection among the Ghanaian population.MethodPolymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was used to determine the presence of the SNPs among 292 participants comprising 146 HBV infected persons as case-subjects and 146 HBV non-infected persons as control-subjects. ResultsThe minor allele frequency (T) of rs2296651 was present in a significantly high proportion of cases compared with the control group (12.6% vs. 3.1%, p < 0.0001). The homozygote recessive variant of rs61745930 was present in 2.7% of the control group and 5.5% of the case group. Moreover, the minor allele frequencies of rs4646287 were 9.6% and 8.6% among the control and the case group, respectively (p = 0.767). Under the dominant (CC) genetic model of inheritance, rs2296651 was found to be protective of HBV infection [OR = 0.18 (0.07–0.44)], whereas under the co-dominant and additive model, rs2296651 was a potential risk factor for HBV infection [OR = 5.2 (95%CI: 2.1–12.8); 3.5 (95%CI: 1.6–7.6], respectively. Variants of rs61745930 and rs4646287 were not associated with HBV infection (p > 0.05). Polymorphisms in SLC10A1, however, did not show any significant association with HBV infectivity (p > 0.05).ConclusionThe study highlights some polymorphism proof that variants rs2296651, rs61745930, and rs4646287 exist in HBV-infected individuals in Ghana. Variant rs2296651 was found to be associated with HBV infection. Nonetheless, polymorphisms in SLC10A1 were not associated with HBV infectivity among the Ghanaian population. Further investigation is warranted to assess the offensive role of the relationship between rs2296651 and HBV infectivity.

scholarly journals Serologic and molecular characteristics of hepatitis B virus infection in vaccinated schizophrenia patients in China

2016 ◽  
Vol 10 (04) ◽  
pp. 427-431 ◽  
Author(s):  
Yiying Wang ◽  
Lugang Yu ◽  
Hui Zhou ◽  
Zhiwei Zhou ◽  
Huijuan Zhu ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Hepatitis B Surface Antigen ◽  
Hbv Infection ◽  
Escape Mutation ◽  
Control Group ◽  
Molecular Characteristics ◽  
Seroprevalence Rate ◽  
Nested Polymerase Chain Reaction ◽  
B Virus

Introduction: Previous studies have indicated that the patients with psychiatric illness were at higher risk of hepatitis B virus (HBV) infection. However, the efficacy of hepatitis B vaccine in schizophrenia patients remains unclear. Methodology: Between June 2014 and January 2015, 415 schizophrenia patients and 3,038 controls who had been routinely immunized as infants were recruited in the present study. Hepatitis B surface antigen (HBsAg), HBsAb, and HBV DNA were detected with commercial methods according to the manufacturer’s protocol. A 600-bp region of the S gene (region nt236–nt835) was amplified by nested polymerase chain reaction (PCR). The genotypes of isolated HBV were identified using phylogenetic analysis by the neighbor-joining algorithm in the software MEGA version 4.1. Results: The seroprevalence of HBsAg in schizophrenia patients was 6.75%, which was significantly higher than 3.32% measured in controls. HBsAg prevalence was 7.94% in male schizophrenia patients and 5.47% in female schizophrenia patients, while it was only 4.04% in males and 2.08% in females in the control group. The HBsAb seroprevalence rate was 58.31% in schizophrenia patients and 59.94% in non-schizophrenia controls. Moreover, one HBV strain in the schizophrenia group presented I126S vaccine escape mutation (5.88%), while three HBV isolates showed Q129H, M133L, and G145R vaccine escape mutations in the control group (6.81%). Conclusions: Schizophrenia patients are at higher risk for HBV infection, even those who had received routine immunization. Therefore, a booster HB vaccination targeted at schizophrenia patients should be considered in the future.

scholarly journals Hepatitis B virus infection and ABO/Rh blood groups

2017 ◽  
Vol 5 (9) ◽  
pp. 3782
Author(s):  
Ozlem Genc
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Blood Group ◽  
Blood Groups ◽  
Hbv Infection ◽  
Control Group ◽  
Chronic Hbv Infection ◽  
B Virus ◽  
Chronic Hbv

Background: Chronic HBV infection is a significant public health problem all around the world. It is not clear if ABO/Rh blood groups have a role in the development of chronic forms of hepatitis B virus (HBV) infection. The aim of the study was to investigate the relationship between chronic HBV infection and ABO/Rh blood groups.Methods: The study was designed as a retrospective study that included totaled 937 individuals: 453 patients diagnosed with chronic hepatitis and 484 healthy individuals as the control group. HBsAg (hepatitis B surface antigen) and blood groups results of patients between the years 2013-2015 were collected by reviewing the laboratory results. During these three years HBsAg was performed on the architect i2000sr (Abbott diagnostic, Illinois, USA) with ELISA and ABO/Rh blood groups were analyzed with gel centrifugation method (Grifols, Barcelona, Spain).Results: Blood group A Rh positive was higher than other blood types in the chronic hepatitis B group (44.3%) and in control group (41.9%), whereas blood types O, AB, and B were similar between cases with chronic hepatitis and controls (p>0.05). HBV infection was moderately less frequent in subjects with AB positive blood group (p=0.07). The prevalence of Rh positive was 89.1% in patients and 88.2% in the control group (p>0.05).Conclusions: This study showed that there was not an association between ABO/Rh blood groups and chronic HBV infection, but there is a need for different and more numerous case-control studies about this subject.

scholarly journals NTCP gene polymorphisms and Hepatitis B virus infection status in a Ghanaian population

2020 ◽  
Author(s):  
Eric Nyarko ◽  
Christian Obirikorang ◽  
W.K.B.A. Owiredu ◽  
Evans Adu Asamoah ◽  
Emmanuel Acheampong ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Genetic Model ◽  
Additive Model ◽  
Minor Allele ◽  
Hbv Infection ◽  
Control Group ◽  
Case Group ◽  
Nucleotide Polymorphisms ◽  
B Virus

Abstract Background: SLC10A1 gene codes NTCP, a receptor through which the hepatitis B virus (HBV) gets access into hepatocytes - a stage of the viral cycle necessary for replication. Polymorphism variants of SLC10A1 play roles in HBV infection, viral clearance, treatment outcome, and complications, in diverse ethnic groups and countries. However, no such study has been conducted in the Ghanaian population, a country with HBV endemicity. Therefore, an exploratory study was conducted to investigate the presence of three (3) single nucleotide polymorphisms (SNPs) in the SLC10A1 gene (rs2296651, rs61745930, and rs4646287) and assessed the risk of HBV infection among the Ghanaian population. Method: Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was used to determine the presence of the SNPs among 292 participants comprising 146 HBV infected persons as case-subjects and 146 HBV non-infected persons as control-subjects. Results: The minor allele frequency (T) of rs2296651 was present in a significantly high proportion of cases compared with the control group (11.6% vs. 3.1%, p<0.0001). The homozygote recessive variant of rs61745930 was present in 2.7% of the control group and 5.5% of the case group. Moreover, the minor allele frequencies of rs4646287 were 9.3% and 8.2% among the control and the case group, respectively (p =0.767). Under the dominant (CC) genetic model of inheritance, rs2296651 was found to be protective of HBV infection [OR= 0.18 (0.07-0.44)], whereas under the co-dominant and additive model, rs2296651 was a potential risk factor for HBV infection [OR= 5.2 (95%CI: 2.1 -12.8); 3.5 (95%CI: 1.6 -7.6], respectively. Variants of rs61745930 and rs4646287 were not associated with HBV infection (p > 0.05). Polymorphisms in SLC10A1, however, did not show any significant association with HBV infectivity (p >0.05). Conclusion: The study highlights some polymorphism proof that variants rs2296651, rs61745930, and rs4646287 exist in HBV-infected individuals in Ghana. Although variant rs2296651 was found to be associated with HBV infection, this association warrants more studies. Polymorphisms in SLC10A1 were not associated with HBV infectivity among the Ghanaian population. Further investigation is warranted to assess the offensive role of the relationship between rs2296651 and HBV infectivity.

How Far we are towards Eradication of HBV Infection

2015 ◽  
Vol 24 (4) ◽  
pp. 473-479 ◽  
Author(s):  
Mihai Voiculescu
Keyword(s):  
Immune Response ◽  
Hepatitis B Virus ◽  
T Cell ◽  
Hepatitis B ◽  
T Cell Receptors ◽  
Hepatitis B Surface Antigen ◽  
Hbv Infection ◽  
Major Health Problem ◽  
Cell Receptors ◽  
B Virus

Hepatitis B virus (HBV) infection is a major health problem with an important biological and a significant socio-economic impact all over the world. There is a high pressure to come up with a new and more efficient strategy against HBV infection, especially after the recent success of HCV treatment. Preventing HBV infection through vaccine is currently the most efficient way to decrease HBV-related cirrhosis and liver cancer incidence, as well as the best way to suppress the HBV reservoir. The vaccine is safe and efficient in 80-95% of cases. One of its most important roles is to reduce materno-fetal transmission, by giving the first dose of vaccine in the first 24 hours after birth. Transmission of HBV infection early in life is still frequent, especially in countries with high endemicity.Successful HBV clearance by the host is immune-mediated, with a complex combined innate and adaptive cellular and humoral immune response. Different factors, such as the quantity and the sequence of HBV epitope during processing by dendritic cells and presenting by different HLA molecules or the polymorphism of T cell receptors (TOL) are part of a complex network which influences the final response. A new potential therapeutic strategy is to restore T-cell antiviral function and to improve innate and adaptive immune response by immunotherapeutic manipulation.It appears that HBV eradication is far from being completed in the next decades, and a new strategy against HBV infection must be considered. Abbreviations: ALT: alanine aminotransferase; APC: antigen presenting cells; cccDNA: covalently closed circular DNA; HBIG: hepatitis B immunoglobulin; HbsAg: hepatitis B surface antigen; HBV: hepatitis B virus; HCC: hepatocellular carcinoma; CTL: cytotoxic T lymphocyte; IFN: interferon; NUC: nucleos(t)ide analogues; pg RNA: pre genomic RNA; TLR: toll-like receptors; TOL: T cell receptors.

Gianotti-Crosti syndrome associated with hepatitis B virus (HBV) infection in an adult: a case report

Kanzo ◽  
2010 ◽  
Vol 51 (11) ◽  
pp. 615-619
Author(s):  
Yuichi Honma ◽  
Masaru Harada ◽  
Masaaki Hiura ◽  
Ryoichi Narita ◽  
Shintaro Abe ◽  
...  
Keyword(s):  
Case Report ◽  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Hbv Infection ◽  
B Virus
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