Displaying publications 141 - 160 of 517 in total

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  1. Fulltext APASL clinical practice guideline on hepatitis B reactivation related to the use of immunosuppressive therapy
    Lau G, Yu ML, Wong G, Thompson A, Ghazinian H, Hou JL, et al.
    Hepatol Int, 2021 Oct;15(5):1031-1048.
    PMID: 34427860 DOI: 10.1007/s12072-021-10239-x
    BACKGROUND & AIM: Hepatitis B reactivation related to the use of immunosuppressive therapy remains a major cause of liver-related morbidity and mortality in hepatitis B endemic Asia-Pacific region. This clinical practice guidelines aim to assist clinicians in all disciplines involved in the use of immunosuppressive therapy to effectively prevent and manage hepatitis B reactivation.

    METHODS: All publications related to hepatitis B reactivation with the use of immunosuppressive therapy since 1975 were reviewed. Advice from key opinion leaders in member countries/administrative regions of Asian-Pacific Association for the study of the liver was collected and synchronized. Immunosuppressive therapy was risk-stratified according to its reported rate of hepatitis B reactivation.

    RECOMMENDATIONS: We recommend the necessity to screen all patients for hepatitis B prior to the initiation of immunosuppressive therapy and to administer pre-emptive nucleos(t)ide analogues to those patients with a substantial risk of hepatitis and acute-on-chronic liver failure due to hepatitis B reactivation.

    Matched MeSH terms: Hepatitis B Surface Antigens; Hepatitis B virus
  2. Fulltext A Hybridised Intelligent Technique for the diagnosis of medical diseases
    Abdu Masanawa Sagir, Saratha Sathasivam
    Pertanika Journal of Science & Technology, 2017;25(2):425-440.
    MyJurnal
    Medical diagnosis is the process of determining which disease or medical condition explains a person’s determinable signs and symptoms. Diagnosis of most diseases is very expensive as many tests are required for predictions. This paper aims to introduce an improved hybrid approach for training the adaptive network based fuzzy inference system (ANFIS). It incorporates hybrid learning algorithms least square estimates with Levenberg-Marquardt algorithm using analytic derivation for computation of Jacobian matrix, as well as code optimisation technique, which indexes membership functions. The goal is to investigate how certain diseases are affected by patient’s characteristics and measurement such as abnormalities or a decision about the presence or absence of a disease. In order to achieve an accurate diagnosis at this complex stage of symptom analysis, the physician may need efficient diagnosis system to classify and predict patient condition by using an adaptive neuro fuzzy inference system (ANFIS) pre-processed by grid partitioning. The proposed hybridised intelligent technique was tested with Statlog heart disease and Hepatitis disease datasets obtained from the University of California at Irvine’s (UCI) machine learning repository. The robustness of the performance measuring total accuracy, sensitivity and specificity was examined. In comparison, the proposed method was found to achieve superior
    performance when compared to some other related existing methods.
    Matched MeSH terms: Hepatitis; Hepatitis A
  3. Hepatitis markers in Malaysians with hepatocellular carcinoma
    Lopez JB, Thambyrajah V, Balasegaram M, Satgunasingam N
    Br J Biomed Sci, 1994 Jun;51(2):177-80.
    PMID: 7519505
    Sera from 80 Malaysians with confirmed hepatocellular carcinoma were tested for five markers of the hepatitis B virus, anti-HCV and anti-HDV by enzyme immunoassay, and alpha fetoprotein (AFP) was measured by radioimmunoassay. Of the patients, 98.8% had evidence of HBV infection and 75% were positive for HBsAg--which latter correlated with AFP raised above cut-off values of 500 ng/ml (P = 0.0001) and 200 ng/ml (P = 0.005). Males correlated significantly with the presence of HBsAg (P = 0.002). Thirty-one per cent of HBsAg positive patients were also positive for HBeAg and 74% for anti-HBe. Twenty per cent of the cases were concurrently positive for both HBsAg and anti-HBs. Six of 70 (8.6%) patients were positive for anti-HCV, of whom four were also positive for HBsAg. None of 67 patients tested for anti-HDV were positive. The results strongly indicate an important aetiological role for hepatitis B virus in causation of hepatocellular carcinoma among Malaysians.
    Matched MeSH terms: Hepatitis Delta Virus/immunology; Hepatitis Antibodies/blood*; Hepatitis B/complications*; Hepatitis B Antigens/blood*
  4. NURSES' KNOWLEDGE ABOUT HEPATITIS C VIRUS IN BAGHDAD TEACHING HOSPITALS: A CROSS-SECTIONAL STUDY
    Alzubaidi Z, Al-Attar W
    Georgian Med News, 2023 Feb.
    PMID: 37042584
    Hepatitis C virus infection (HCV) considered one of the main reasons in Iraq to cause chronic liver disease, which may progress to life-threatening outcomes. Nurses' knowledge about the HCV will impact their practice of standard precaution when managing HCV patients. The present study aimed to assess the nurses' knowledge about HCV in Baghdad teaching hospitals. A cross-sectional descriptive study was performed via distribution of HCV info questionnaires to 150 nurses in three Baghdad teaching hospitals (Al-Kindi, Al-Elwyia pediatric and Sheikh Zayed hospitals). The questionnaire format consists of nurses' demographic data (age, gender, educational level, marital status, years of experience in hospital, workplace in hospital, attending training courses and information sources) and nurses' knowledge of hepatitis C virus (nature of the disease, transmission, prevention, and treatment). The mean score of the knowledge showed fair grade with 66.66±12.9%. As the highest correct percentage displayed in nature of the disease (73%) and treatment (72%). Whereas the lowest correct percentage presented in transmission (69%) and prevention (48.3%). The results exhibited significant difference between the nurses' knowledge about treatment with the information sources (P<0.05), about transmission and prevention with the hospital workplace (P<0.05), and about prevention with the educational level (P<0.005). Continuing educational programs are essential to increase awareness of HCV among the nurses.
    Matched MeSH terms: Hepatitis C*
  5. Pay-it-forward incentives for hepatitis virus testing in men who have sex with men: a cluster randomized trial
    Zhang Y, Li J, Xie Y, Wu D, Ong J, Marley G, et al.
    Nat Med, 2023 Sep;29(9):2241-2247.
    PMID: 37640859 DOI: 10.1038/s41591-023-02519-w
    Pay-it-forward incentives involve having a person receive a free test with community-generated messages and then asking if those who received a free test would like to donate money to support others to receive free testing. Here we undertook a two-arm cluster-randomized trial to evaluate pay-it-forward incentives with active community participation to promote hepatitis B virus (HBV) and hepatitis C virus (HCV) testing among men who have sex with men in China. Men randomized to the pay-it-forward arm received free HBV and HCV testing and were offered a chance to pay-it-forward by donating money to support the testing of another anonymous person. Each participant paid for their HCV and HBV test at 7.7 USD per test in the standard-of-care arm. The primary outcome was the proportion of men who tested for HBV and HCV. Between 28 March and 6 November 2021, 32 groups (10 men per group) of men were randomized to the pay-it-forward (n = 160, 16 clusters) and standard-of-care (n = 162, 16 clusters) arms, respectively. HBV and HCV rapid testing were higher in the pay-it-forward arm (59.4%) than in the standard-of-care arm (25.3%) (proportion difference 35.2%, 95% confidence interval 24.1-46.3%). No adverse events were reported. The community-led pay-it-forward incentives improved HBV and HCV testing among men who have sex with men. Clinical Trial registration: ChiCTR 2100046140.
    Matched MeSH terms: Hepatitis B virus; Hepatitis Viruses
  6. Fulltext Pathway to global elimination of hepatitis B: HBV cure is just the first step
    Howell J, Seaman C, Wallace J, Xiao Y, Scott N, Davies J, et al.
    Hepatology, 2023 Sep 01;78(3):976-990.
    PMID: 37125643 DOI: 10.1097/HEP.0000000000000430
    Hepatitis B (HBV) is a major cause of global morbidity and mortality, and the leading cause of liver cancer worldwide. Significant advances have recently been made toward the development of a finite HBV treatment that achieves permanent loss of HBsAg and HBV DNA (so-called "HBV cure"), which could provide the means to eliminate HBV as a public health threat. However, the HBV cure is just one step toward achieving WHO HBV elimination targets by 2030, and much work must be done now to prepare for the successful implementation of the HBV cure. In this review, we describe the required steps to rapidly scale-up future HBV cure equitably. We present key actions required for successful HBV cure implementation, integrated within the World Health Organization (WHO) Global Health Sector Strategy (GHSS) 2022-2030 framework. Finally, we highlight what can be done now to progress toward the 2030 HBV elimination targets using available tools to ensure that we are preparing, but not waiting, for the cure.
    Matched MeSH terms: Hepatitis B Surface Antigens; Hepatitis B virus
  7. Fulltext Prevalence of HIV, Hepatitis B and C Virus Co-infections among Iranian High-Risk Groups: A Systematic Review and Meta-Analysis
    Hashiani AA, Sadeghi F, Ayubi E, Rezaeian S, Moradi Y, Mansori K, et al.
    Malays J Med Sci, 2019 May;26(3):37-48.
    PMID: 31303849 DOI: 10.21315/mjms2019.26.3.3
    Co-infection with hepatitis B and C among HIV infected patients are prevalent among high-risk populations. This meta-analysis aimed to estimate the prevalence of HIV, HCV and HBV co-infections among high-risk populations in Iran. We systematically searched the national and international electronic databases until 2016. The primary outcome was the prevalence of HIV, HBV, HCV and HIV co-infections in different high-risk populations in Iran. All English and Persian studies conducted on Iranian high-risk groups were included in the study. The review was reported based on PRISMA guidelines and data were analysed at 95% confidence level using random effect models. Overall, 916 relevant papers were recognised and 14 articles were included in the meta-analysis. The pooled estimates of HBV/HCV, HCV/HIV, HBV/HIV and HBV/HCV/HIV were 1.3% (95%CI: 0.5-2.1), 16.3% (95%CI: 1.1-31.6), 0.5% (95%CI: 0-1.4) and 0.5% (95%CI: 0.2-0.8), respectively. Based on subgroup analysis, there was a higher proportion of all co-infections from the years 2010-2016 as compared to that of the years 2003-2009. Our results highlighted that HCV/HIV co-infection in Iranian high-risk groups including injection drug users (IDUs) and prisoners is common. In addition, the increasing trend of coinfections should be considered alarming for policymakers.
    Matched MeSH terms: Hepatitis B; Hepatitis C
  8. Occult hepatitis B infection in blood donors from South East Asia: molecular characterisation and potential mechanisms of occurrence
    Candotti D, Lin CK, Belkhiri D, Sakuldamrongpanich T, Biswas S, Lin S, et al.
    Gut, 2012 Dec;61(12):1744-53.
    PMID: 22267593 DOI: 10.1136/gutjnl-2011-301281
    To investigate the molecular basis of occult hepatitis B virus (HBV) infection (OBI) in Asian blood donors.
    Matched MeSH terms: Hepatitis B Surface Antigens/genetics; Hepatitis B Surface Antigens/metabolism; Hepatitis B virus/genetics*; Hepatitis B virus/immunology; Hepatitis B virus/isolation & purification; Hepatitis B, Chronic/diagnosis; Hepatitis B, Chronic/immunology; Hepatitis B, Chronic/virology*
  9. Fulltext High possibility of hepatocarcinogenesis in HBV genotype C1 infected Cambodians is indicated by 340 HBV C1 full-genomes analysis from GenBank
    Chuon C, Takahashi K, Matsuo J, Katayama K, Yamamoto C, Ko K, et al.
    Sci Rep, 2019 08 21;9(1):12186.
    PMID: 31434918 DOI: 10.1038/s41598-019-48304-z
    Approximately 75% of hepatocellular carcinomas (HCC) occur in Asia; core promoter mutations are associated with HCC in HBV genotype C, the dominant genotype in Cambodia. We analyzed these mutations in Cambodian residents and compared them with HBV full genomes registered in GenBank. We investigated the characteristics of 26 full-length HBV genomes among 35 residents positive for hepatitis B surface antigen in Siem Reap province, Cambodia. Genotype C1 was dominant (92.3%, 24/26), with one case of B2 and B4 each. Multiple mutations were confirmed in 24 Cambodian C1 isolates, especially double mutation at A1762T/G1764A in 18 isolates (75.0%), and combination mutation at C1653T and/or T1753V and A1762T/G1764A in 14 isolates (58.3%). In phylogenetic analysis, 16 of 24 isolates were located in the cluster with Laos, Thailand, and Malaysia. In 340 GenBank-registered C1 strains, 113 (33.2%) had combination mutation amongst which 16.5%, 34.2%, and 95.2% were found in ASC, chronic hepatitis, and liver cirrhosis (LC)/HCC respectively (P 
    Matched MeSH terms: Hepatitis B/complications; Hepatitis B/epidemiology; Hepatitis B/pathology; Hepatitis B/virology*; Hepatitis B Surface Antigens/blood; Hepatitis B virus/classification; Hepatitis B virus/genetics*; Hepatitis B virus/isolation & purification
  10. Fulltext Genome sequence of the hepatitis C virus subtype 6n isolated from malaysia
    Ng KT, Lee YM, Al-Darraji HA, Xia X, Takebe Y, Chan KG, et al.
    Genome Announc, 2013 Jan;1(1).
    PMID: 23409272 DOI: 10.1128/genomeA.00168-12
    We report the full genome sequence of hepatitis C virus (HCV) subtype 6n from Kuala Lumpur, Malaysia. Phylogenetic analysis of the isolate 10MYKJ032 suggests that Southeast Asia might be the origin for the HCV subtype 6n and highlights the possible spread of this lineage from Southeast Asia to other regions.
    Matched MeSH terms: Hepatitis C
  11. Liver transplantation in the Asia Pacific region--trials and tribulations
    Fan ST
    Med J Malaysia, 2005 Jul;60 Suppl B:1-4.
    PMID: 16108164
    Matched MeSH terms: Hepatitis B/pathology; Hepatitis B/prevention & control; Hepatitis B/surgery
  12. Aetiology and classification of acute liver failure
    Rosmawati M
    Med J Malaysia, 2005 Jul;60 Suppl B:125-6.
    PMID: 16108192
    Matched MeSH terms: Hepatitis A/complications; Hepatitis B/complications
  13. Management of patients coinfected by HCV and HIV
    Poynard T
    Med J Malaysia, 2005 Jul;60 Suppl B:70-1.
    PMID: 16108178
    Matched MeSH terms: Hepatitis C, Chronic/diagnosis; Hepatitis C, Chronic/drug therapy*; Hepatitis C, Chronic/epidemiology
  14. Liver transplantation in chronic hepatitis B
    Gane E
    Med J Malaysia, 2005 Jul;60 Suppl B:88-9.
    PMID: 16108183
    Matched MeSH terms: Hepatitis B, Chronic/drug therapy; Hepatitis B, Chronic/pathology; Hepatitis B, Chronic/surgery*
  15. Fulltext Hepatitis A outbreak in Hulu Langat District, Selangor State, Malaysia during April--October 2002
    Venugopalan B, Nik Rubiah NAR, Meftahuddin T, Ayu M, Prema R, Ruhaini I, et al.
    Med J Malaysia, 2004 Dec;59(5):670-3.
    PMID: 15889571
    A Hepatitis A outbreak occurred in Mukim Hulu Langat, Hulu Langat district from April 2002 to October 2002. Of the 51 cases notified, most were among students and the ethnic groups involved were Malays and the Orang Asli (local indigenous community). Epidemiological investigations revealed that the cases were localized along rivers used for recreational activities in this area. River water analysis indicated human faecal contamination and it was believed that the contamination was due to the Orang Asli community living upstream. This occurred due to lack of toilet facilities, water at point of use and the existing traditional practices of the Orang Asli community. Control measures instituted were intense health education to the Orang Asli to avoid using the rivers for defecation, multi agency efforts to provide sanitary toilets and adequate water to the villages affected. Future measures include conducting a sero- prevalence survey to determine the feasibility of Hepatitis A immunization to the susceptible population in this area. The outbreak that began in April 2002 was controlled by October 2002.
    Matched MeSH terms: Hepatitis A/epidemiology*; Hepatitis A/prevention & control*; Hepatitis A/transmission
  16. The frequency of pre-core gene mutations in chronic hepatitis B infection: a study of Malaysian subjects
    Yap SF, Wong PW, Chen YC, Rosmawati M
    Southeast Asian J. Trop. Med. Public Health, 2002 Mar;33(1):102-9.
    PMID: 12118437
    A retrospective study was carried out to determine the frequency of the pre-core stop codon mutant virus in a group of chronic hepatitis B carriers: 81 cases were considered [33 hepatits B e antigen (HBe) positive and 48 HBe negative]. All of the HBe positive cases had detectable viral DNA by hybridization analysis; in the case of the HBe negative cases, one third had detectable viral DNA by hybridization analysis and two thirds had HBV DNA detectable by polymerase chain reaction (PCR) amplification. Pre-core stop codon mutant detection was carried out on all specimens using allele-specific oligonucleotide hybridization following PCR amplification of the target sequence. The pre-core mutant was detected in 13/33 (39.4%) of HBe positive cases and in 32/48 (66.7%) of HBe negative cases. Sequence analysis was carried out on 8 of the 16 HBe negative specimens that did not carry the pre-core mutant virus to determine the molecular basis for the HBe minus phenotype in these cases: the 1762/1764 TA paired mutation in the second AT rich region of the core promoter was detected in five cases; a start codon mutation was detected in one case. The predominant mutation resulting in the HBe minus phenotype in our isolates was the 1896A pre-core ("pre-core stop codon") mutation; other mutations responsible for the phenotype included the core promoter paired mutation and pre-core start codon mutation. In view of the high frequency of the pre-core mutant virus, sequence analysis was performed to determine the virus genotype on the basis of the nucleotide sequence of codon 15. The sequences of 21 wild type virus (14 HBe positive and 7 HBe negative cases) were examined: 15 were found to be codon 15 CCT variants (71.4%); the frequency in the HBe positive group was 12/14 (85.7%), while that in the HBe negative group was 3/7 (42.9%). The high frequency of the codon 15 CCT variant in association with the frequent occurrence of the pre-core mutant in our isolates concurs with the results of other studies.
    Matched MeSH terms: Hepatitis B Core Antigens/genetics*; Hepatitis B, Chronic/genetics*
  17. Fulltext Hepatitis B surface antigen subtypes in hepatitis B seropositive subjects in University Hospital, Kuala Lumpur
    Ng KP, Saw TL
    Med J Malaysia, 1999 Sep;54(3):352-7.
    PMID: 11045062
    Hepatitis B surface antigen can be serologically defined as ayw1, ayw2, ayw3, ayw4, ayr, adw2, adw4 and adrq+ or adrq-. A study of common HBsAg subtypes in 44 HBsAg reactive sera in University Hospital was conducted using a solid-phase sandwich EIA. Eleven samples were found not typable and among the 33 typable HBsAg reactive sera, 3 HBsAg subtypes: adw, adr and ayw were identified. Subtype adw was found in 66.7% (22/33) of the typable HBsAg reactive sera; 24.2% (8/33) was of subtype adr and 6.0% (2/33) of subtype ayw. One sample was found to be reactive to both adw and adr. HBsAg subtype adw was found more commonly in Chinese but among the Malays, HBsAg subtype adr appeared to predominate. However, the small sample size precludes firm conclusions on the predominant subtype among the Malays.
    Matched MeSH terms: Hepatitis B Antibodies/analysis*; Hepatitis B Surface Antigens/analysis*
  18. Fulltext The prevalence of hepatitis B surface antigen and anti-HCV antibody in paediatric oncology patients in Hospital Universiti Sains Malaysia
    Menon BS, Aiyar S
    Med J Malaysia, 1997 Dec;52(4):331-4.
    PMID: 10968109
    This study examined the prevalence of hepatitis B and C markers in 55 paediatric oncology patients who had completed treatment at the Hospital Universiti Sains Malaysia in Kota Baru. All these children had received blood products and had been treated between 1985-1996. Forty seven per cent of patients were positive for hepatitis B or C. Twenty nine per cent were positive for hepatitis C and twenty two per cent were HBsAg positive. Two children were positive for both and none were HIV positive. Four children had an elevated ALT level and one child had jaundice and hepatomegaly. Some children were marker-positive despite immunization and screening of blood.
    Matched MeSH terms: Hepatitis B Surface Antigens/analysis*; Hepatitis C Antibodies/blood*
  19. Fulltext Chronic hepatitis C--a study of 105 cases between 1990-2000
    Suresh RL, Kananathan R, Merican I
    Med J Malaysia, 2001 Jun;56(2):243-7.
    PMID: 11771088
    An analysis of 105 consecutive patients with chronic hepatitis C at the gastroenterology outpatient's clinic in Hospital Kuala Lumpur was performed. The clinical, laboratory and virological data was prospectively recorded in the case notes and comprised of data on patient characteristics, risk factors, clinical features, laboratory features, virology screen and management. Chronic Hepatitis C cases accounted for 2.1% of the total number of cases seen at this clinic during the entire period. There were 78 (74%) males and 27 (26%) females. The ethnic breakdown consisted of Chinese (44.2%), Malays (39.4%), Indians (15.4%) and others (1%). There was higher male preponderance in all the ethnic groups. The main mode of transmission was blood transfusion comprising 51 patients (48.8%). A total of 35.2% of cases underwent treatment, of which a proportion had interferon monotherapy for 6 or 12 months and a subsequent group of naïve patients and non-responders underwent combination therapy with interferon and ribavarin.
    Matched MeSH terms: Hepatitis C, Chronic/epidemiology*; Hepatitis C, Chronic/pathology; Hepatitis C, Chronic/virology
  20. Fulltext Chronic HCV histology is predictable from HCV RNA and IgM anti HCV results
    Sachithanandan S, Fielding JF
    Med J Malaysia, 1999 Mar;54(1):110-3.
    PMID: 10972013
    The aim of this study was to determine if knowledge of both the serum HCV RNA and serum anti core IgM antibody status enabled one to predict the histological severity in chronic hepatitis C. We studied 45 female patients with chronic hepatitis C infection. The presence or absence of IgM antibodies to HCV and HCV RNA by PCR in each patient's serum was determined. Liver biopsies performed were scored according to a modified Desmet's histological activity index. Negative HCV RNA patients had least histological change. HCV RNA positive patients who were also IgM antibody positive had lower scores than their IgM negative counterparts. The grade of histological severity is more accurately predictable from knowledge of both the HCV RNA and IgM anti HCV status of the patient.
    Matched MeSH terms: Hepatitis C Antibodies/analysis*; Hepatitis C, Chronic/pathology*
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