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1.
Article in English | MEDLINE | ID: mdl-38725188

ABSTRACT

Inflammatory bowel disease (IBD) is rapidly emerging in the Asia Pacific region. However, there are many challenges in the diagnosis and management of this condition. The Asian Pacific Association of Gastroenterology (APAGE) Working Group on IBD conducted a round table meeting to identify 10 common mistakes in the management of IBD in Asia. To summarize, many physicians still over rely on a definitive histological diagnosis before starting treatment and do not fully establish disease extent such as perianal and proximal gastrointestinal involvement in Crohn's disease (CD) or extent of involvement in ulcerative colitis (UC). It is also essential to actively look for evidence of extra-intestinal manifestations, which may influence choice of therapy. In terms of conventional therapy, underuse of topical 5 aminosalicylates (5-ASAs) in UC and inappropriate dosing of corticosteroids are also important considerations. Acute severe UC remains a life-threatening condition and delay in starting rescue therapy after inadequate response to intravenous steroids is still common. Anti-tumor necrosis factors should be considered first line in all cases of complex perianal fistulizing CD. Most patients with IBD are on potent immunosuppressive therapy and should be screened for latent infections and offered vaccinations according to guidelines. Under-recognition and management of significant complications such as anemia, osteoporosis, malnutrition, and thromboembolism should also be addressed. Colonoscopy is still not properly performed for dysplasia/cancer surveillance and for evaluating post-op recurrence of CD. Another common misstep is inappropriate withdrawal of medications during pregnancy leading to increased complications for the mother and the newborn.

2.
Healthcare (Basel) ; 11(7)2023 Apr 01.
Article in English | MEDLINE | ID: mdl-37046937

ABSTRACT

BACKGROUND AND AIM: Despite introducing the hepatitis B virus (HBV) vaccine, the incidence of the Hepatitis B virus globally is still a major health concern. This systematic review and meta-analysis were conducted to provide detailed information on the prevalence of HBV genotypes and subtypes in circulation in Asia. METHODS: A systematic search for articles describing the prevalence of HBV genotypes and subtypes in Asia was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines. RESULTS: Our search returned 207 eligible articles involving 49,279 genotypes and 7457 subtypes representing 28 Asian countries. A meta-analysis was performed on our eligible studies using the Random effect Model. The pooled prevalence of HBV genotypes showed that genotype C (30.9%) (95% CI, 27.5-34.5%; I2 = 97.57%; p < 0.001) was the most common HBV genotype in Asia, followed by genotype B (17.8%) (95% CI, 15.5-20.4%; I2 = 97.26%; p < 0.001) and genotype D (15.4%) (95% CI, 11.8-19.8%). Vietnam had the highest prevalence of genotype B, Lebanon had the highest prevalence of genotypes C, and Jordan had the highest prevalence of genotype D. There was variation in genotypic prevalence with respect to the target genes for HBV genotyping. Reverse dot blot hybridization had the highest estimate of genotypes B and C. HBV subtype C2 (40.0%) (95% CI, 33.3-47.0) is the most prevalent HBV subtype. CONCLUSION: Evidence from this study reveals that HBV genotypes C and B are the most dominant HBV genotypes in Asia, and HBV subtype C2 is more endemic in Asia.

3.
Healthcare (Basel) ; 11(2)2023 Jan 16.
Article in English | MEDLINE | ID: mdl-36673643

ABSTRACT

Background and Aim: Spontaneous bacterial peritonitis (SBP) is a common infection in liver cirrhosis. This systematic review and meta-analysis provide detailed information on the prevalence of SBP among hepatitis B virus (HBV) and hepatitis C virus (HCV)-related liver cirrhosis globally. Methods: A systematic search for articles describing the prevalence of SBP in HBV and HCV-related cirrhosis was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines. Our search returned ten (10) eligible articles involving 1713 viral cirrhosis cases representing eight (8) countries. A meta-analysis was performed on our eligible studies using the random effect model. A protocol was registered with PROSPERO (CRD42022321790). Results: The pooled prevalence of SBP in HBV-associated cirrhosis had the highest estimate [8.0% (95% CI, 2.7−21.0%; I2 = 96.13%; p < 0.001)], followed by SBP in HCV-associated liver cirrhosis [4.0% (95% CI, 1.3%−11.5%; I2 = 88.99%; p < 0.001)]. China (61.8%, CI: 57.1−66.3%), the USA (50.0%, CI: 34.6−65.4%), and Holland (31.1%, CI: 21.6−42.5%) had the highest estimate for SBP in HBV associated liver cirrhosis, SBP in HCV associated liver cirrhosis and SBP in HBV + HCV associated liver cirrhosis respectively. There was a significant difference in the prevalence of SBP in viral hepatitis-associated liver cirrhosis with the year of sampling and method of SBP detection at P < 0.001. There was an increase in SBP incidence at the beginning of 2016 across the liver cirrhosis in this study. Conclusion: The findings of this review revealed a rise in the incidence of SBP in viral hepatitis over the last decade. The latter indicates a possible future rise in the global prevalence of SBP among HBV and HCV-related liver cirrhosis.

4.
J Infect Dev Ctries ; 16(2): 231-243, 2022 02 28.
Article in English | MEDLINE | ID: mdl-35298416

ABSTRACT

Remarkable scientific breakthroughs have been made in the stride towards the development of potent and tolerable hepatitis C regimens within the last three decades. Earlier approaches involved the use of pegylated interferon alfa and ribavirin as standard-of-care treatment. Treating genotype 1a infection with this regimen which was at that time considered the gold standard for hepatitis C virus therapy was rife with challenges; safety and toxicity issues necessitated a rigorous quest for alternative regimens. Deeper understanding of the pathogenesis of hepatitis C virus ushered in the era of direct acting antiviral agents. These agents have been the subject of intensive research in the last two decades, leading to the development of drug classes such as protease inhibitors (e.g., grazoprevir), NS5A inhibitors (e.g., daclatasvir) and NS5B inhibitors (e.g., sofosbuvir). While many are still under development, several have been approved for hepatitis C therapy. A number of studies investigating the combination of direct acting antiviral agents with or without pegylated interferon and/or ribavirin for the treatment of chronic hepatitis have demonstrated sustained virologic response of > 90%. Given the array of direct acting antiviral agents currently available, the present landscape of hepatitis C therapy is now characterized by a gradual transition to all-oral interferon-free regimens. Despite these milestones, the WHO global target of eliminating hepatitis C as a public health problem by 2030 seems uncertain. In this review, we provide a concise account of the evolution and advancements in the development of anti-HCV regimens.


Subject(s)
Hepatitis C, Chronic , Hepatitis C , Antiviral Agents/pharmacology , Antiviral Agents/therapeutic use , Hepacivirus/genetics , Hepatitis C/drug therapy , Hepatitis C, Chronic/drug therapy , Humans , Interferon-alpha/therapeutic use
5.
PLoS One ; 16(5): e0251673, 2021.
Article in English | MEDLINE | ID: mdl-34014997

ABSTRACT

Known for its high genetic diversity and variation in genotypic presence in different regions of the world, hepatitis C virus (HCV) is estimated to infect about 71 million people globally. Selection of an appropriate therapeutic regimen largely depends on the identification of the genotype responsible for the infection. This systematic review and meta-analysis was conducted to provide a comprehensive view of HCV genotype and subtype distribution in Southeast Asia (SEA). The review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA). We searched five databases without year and language restrictions. Data from 90 eligible studies involving 15,089 genotypes and 9,646 subtypes representing 10 SEA countries were analyzed. The pooled estimates showed that genotype 1 (46.8%) [95% CI, 43.2-50.4; I2 = 92.77%; p < 0.001] was the most dominant HCV genotype in the region, followed by genotype 3 (23.1%) [95% CI, 19.4-27.2; I2 = 93.03%; p < 0.001], genotype 6 (16.5%) [95% CI, 13.8-19.6], genotype 2 (4.6%) [95% CI, 3.5-5.9], genotype 4 (1.1%) [95% CI, 0.7-1.5] and genotype 5 (0.8%) [95% CI, 0.4-1.3]. Philippines had the highest prevalence of genotypes 1 and 2. Genotype 6 became more prevalent after year 2000. Over 40 different subtypes were identified, with subtypes 1b (26.3%), 1a (21.3%), and 3a (14.3%) being the most prevalent of all the reported subtypes. Although on a global scale, genotype 6 is considered highly prevalent in SEA, evidence from this study reveals that it is the third most prevalent genotype within the region.


Subject(s)
Genetic Variation , Genotype , Hepacivirus/genetics , Hepatitis C/genetics , Asia, Southeastern/epidemiology , Hepatitis C/epidemiology , Humans , Prevalence
6.
JGH Open ; 5(1): 116-121, 2021 Jan.
Article in English | MEDLINE | ID: mdl-33490620

ABSTRACT

BACKGROUND AND AIM: While dietary exposure to microplastics is increasingly recognized, it is unknown if ingested plastics remain within the digestive tract. We aimed to examine human colectomy specimens for microplastics and to report the characteristics as well as polymer composition of the particles. METHODS: Colectomy samples were obtained from 11 adults (mean age 45.7, six males) who were residents of Northeastern Peninsular Malaysia. Microplastics were identified following chemical digestion of specimens and subsequent filtration. The samples were then examined for characteristics (abundance, length, shape, and color) and composition of three common polymer types using stereo- and Fourier Transform InfraRed (FTIR) microscopes. RESULTS: Microplastics were detected in all 11 specimens with an average of 331 particles/individual specimen or 28.1 ± 15.4 particles/g tissue. Filaments or fibers accounted for 96.1% of particles, and 73.1% of all filaments were transparent. Out of 40 random filaments from 10 specimens (one had indeterminate spectra patterns), 90% were polycarbonate, 50% were polyamide, and 40% were polypropylene. CONCLUSION: Our study suggests that microplastics are ubiquitously present in the human colon.

7.
Malays J Med Sci ; 28(6): 186-193, 2021 Dec.
Article in English | MEDLINE | ID: mdl-35002498

ABSTRACT

Digestive disorder symptoms in COVID-19 may be similar in form to post-infectious functional gastrointestinal disorder (PI-FGID). To cause clinical effects, SARS-CoV-2 must reach the bowels and gastric hypochlorhydria may facilitate such transit. Asian elderly are predisposed to greater infection rate and severity of COVID-19, and the high prevalence of gastric atrophy and intake of proton-pump inhibitor in this aged group might explain the risk. Persistence shedding of SARS-CoV-2 in stools indicates that faecal transmission should not be disregarded. Gut involvement in COVID-19 is mediated by angiotensin-converting enzyme 2 (ACE2) receptor, which serves as the entry point for SARS-CoV-2 in the small bowel. ACE2 dysregulation has an impact on the homeostasis of gut microbiota and altered inflammatory response. Liver injury is variable in COVID-19 and is likely a result of by-stander effects rather than actual viropathic process. Further research is needed to understand if gut involvement is a cause or effect of SARS-CoV-2.

9.
J R Coll Physicians Edinb ; 50(3): 256-261, 2020 Sep.
Article in English | MEDLINE | ID: mdl-32936098

ABSTRACT

Globally, the prevalence of non-alcoholic fatty liver disease (NAFLD) is increasing rapidly and constitutes a significant healthcare burden due to associated complications including hepatic (cirrhosis and hepatocellular cancer) and non-hepatic (cardiovascular deaths) disorders. It is closely linked to insulin resistance and metabolic syndrome but moderate alcohol consumption frequently coexists. Recently, genetic polymorphisms were implicated in the development of non-obese NAFLD. Apart from liver biopsy, in order to assess for steatosis, fibrosis and non-alcoholic steatohepatitis (NASH), advances in non-invasive serum tests and elastography have provided similarly accurate, more accessible and safer alternatives for risk stratification. As for treatment in 2020, weight loss and lifestyle modification remain the central strategy. Unfortunately, no pharmacological agents have been approved thus far, but there are a number of potential therapies in the pipeline for fibrosis and NASH. Treatment of underlying metabolic disorders is important. While the term NAFLD was coined in the 1980s, more recent understanding may support a change in nomenclature highlighting its strong metabolic roots.


Subject(s)
Insulin Resistance , Liver Neoplasms , Non-alcoholic Fatty Liver Disease , Humans , Liver/pathology , Liver Cirrhosis , Liver Neoplasms/diagnosis , Liver Neoplasms/therapy , Non-alcoholic Fatty Liver Disease/diagnosis , Non-alcoholic Fatty Liver Disease/pathology , Non-alcoholic Fatty Liver Disease/therapy
10.
Intest Res ; 17(3): 285-310, 2019 Jul.
Article in English | MEDLINE | ID: mdl-31146509

ABSTRACT

The Asia-Pacific Working Group on inflammatory bowel disease (IBD) was established in Cebu, Philippines, under the auspices of the Asian Pacific Association of Gastroenterology with the goal of improving IBD care in Asia. This consensus is carried out in collaboration with Asian Organization for Crohn's and Colitis. With biologic agents and biosimilars becoming more established, it is necessary to conduct a review on existing literature and establish a consensus on when and how to introduce biologic agents and biosimilars in the conjunction with conventional treatments for ulcerative colitis (UC) and Crohn's disease (CD) in Asia. These statements also address how pharmacogenetics influence the treatments of UC and CD and provide guidance on response monitoring and strategies to restore loss of response. Finally, the review includes statements on how to manage treatment alongside possible hepatitis B and tuberculosis infections, both common in Asia. These statements have been prepared and voted upon by members of IBD workgroup employing the modified Delphi process. These statements do not intend to be all-encompassing and future revisions are likely as new data continue to emerge.

11.
J Gastroenterol Hepatol ; 34(8): 1296-1315, 2019 Aug.
Article in English | MEDLINE | ID: mdl-30848854

ABSTRACT

The Asia-Pacific Working Group on Inflammatory Bowel Disease was established in Cebu, Philippines, under the auspices of the Asia-Pacific Association of Gastroenterology with the goal of improving inflammatory bowel disease care in Asia. This consensus is carried out in collaboration with Asian Organization for Crohn's and Colitis. With biologic agents and biosimilars becoming more established, it is necessary to conduct a review on existing literature and establish a consensus on when and how to introduce biologic agents and biosimilars in conjunction with conventional treatments for ulcerative colitis and Crohn's disease in Asia. These statements also address how pharmacogenetics influences the treatments of ulcerative colitis and Crohn's disease and provides guidance on response monitoring and strategies to restore loss of response. Finally, the review includes statements on how to manage treatment alongside possible hepatitis B and tuberculosis infections, both common in Asia. These statements have been prepared and voted upon by members of inflammatory bowel disease workgroup employing the modified Delphi process. These statements do not intend to be all-encompassing, and future revisions are likely as new data continue to emerge.


Subject(s)
Biological Products/therapeutic use , Colitis, Ulcerative/drug therapy , Crohn Disease/drug therapy , Immunologic Factors/therapeutic use , Asia/epidemiology , Benchmarking , Biological Products/adverse effects , Biological Products/pharmacokinetics , Clinical Decision-Making , Colitis, Ulcerative/diagnosis , Colitis, Ulcerative/epidemiology , Colitis, Ulcerative/immunology , Consensus , Crohn Disease/diagnosis , Crohn Disease/epidemiology , Crohn Disease/immunology , Delphi Technique , Humans , Immunologic Factors/adverse effects , Immunologic Factors/pharmacokinetics , Patient Selection , Pharmacogenetics , Risk Factors , Treatment Outcome
12.
BMC Gastroenterol ; 15: 101, 2015 Aug 12.
Article in English | MEDLINE | ID: mdl-26264957

ABSTRACT

BACKGROUND: Unchanged substrate in a negative rapid urease test may be reused to detect Helicobacter pylori (H. pylori). This could potentially reduce costs and wastage in low prevalence and resource-poor settings. We thus aimed to investigate the diagnostic accuracy of reused Pronto Dry and CLOtest kits, comparing this to the use of new Pronto Dry test kits and histopathological evaluation of gastric mucosal biopsies. METHODS: Using a cross-sectional study design, subjects who presented for upper endoscopy due to various non-emergent causes had gastric biopsies obtained at three adjacent sites. Biopsy samples were tested for H. pylori using a reused Pronto Dry test, a reused CLOtest, a new Pronto Dry test and histopathological examination. Concordance rates, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and diagnostic accuracy were then determined. RESULTS: A total of 410 subjects were recruited. The sensitivity and diagnostic accuracy of reused Pronto Dry tests were 72.60 % (95% CI, 61.44 - 81.51) and 94.15% (95% CI, 91.44 - 96.04) respectively. For reused CLOtests, the sensitivity and diagnostic accuracy were 93.15% (95% CI 85.95 - 97.04) and 98.29% (95% CI 96.52 - 99.17) respectively. There were more true positives for new and reused Pronto Dry pallets as compared to new and reused CLOtests when comparing colour change within 30 min vs. 31-60 min (P < 0.001 and P = 0.7 respectively). CONCLUSION: Negative Pronto Dry and CLOtest kits may be reused in a low prevalence setting where cost issues remain paramount. Reused CLOtest kits have better accuracy than reused Pronto Dry tests. Reused Pronto Dry tests however have a more rapid colour change whilst maintaining diagnostic accuracy.


Subject(s)
Gastric Mucosa/pathology , Helicobacter Infections/diagnosis , Helicobacter Infections/pathology , Helicobacter pylori , Reagent Kits, Diagnostic/standards , Urease/analysis , Adult , Aged , Biomarkers/analysis , Biopsy , Cross-Sectional Studies , False Negative Reactions , False Positive Reactions , Female , Humans , Male , Middle Aged , Predictive Value of Tests
13.
BMC Gastroenterol ; 13: 84, 2013 May 14.
Article in English | MEDLINE | ID: mdl-23672671

ABSTRACT

BACKGROUNDS: The study aimed to survey for FD in a primary care setting in a population known to have an extremely low prevalence of Helicobacter pylori (H. pylori) infection, with the hypothesis that in such a population, dyspepsia should have been relatively less common. METHODS: The Rome III FD Diagnostic Questionnaire was translated into the Malay language and later tested for reliability. A prospective cross-sectional survey was then performed involving 160 Malay patients attending primary care clinic after informed consent. Patients positive for symptoms of FD were subjected to upper endoscopy and exclusion of H. pylori infection. Univariable and multivariable analyses were used to test for associated risk factors. RESULTS: The back-translated questionnaire was similar to the original English version and was reliable (Cronbach Alpha-coefficient 0.85). Of the 160 surveyed subjects, 19 of them (11.9%) had symptoms of FD. With exclusion of erosive diseases (3/160 or 1.9%) from endoscopy, 16 subjects or 10% had FD. None of the 19 subjects were positive for H. pylori infection. Epigastric pain syndrome was present in 11/16 (68.8%) and the rest, overlap with postprandial distress syndrome. With multivariable analysis, a married status (OR = 8.1; 95% CI 1.0-36.5) and positive psychosocial alarm symptoms (OR = 3.8; 95% CI 1.0-14.0) were associated with FD. Of those married subjects, females were more likely to have FD and psychosocial symptoms than men (6.3% vs. 1.9%), P = 0.04. CONCLUSIONS: FD was more common than one had expected among Malays attending primary care clinic in an area with low prevalence of H. pylori.


Subject(s)
Dyspepsia/epidemiology , Helicobacter Infections/epidemiology , Helicobacter pylori , Primary Health Care , Adult , Anxiety/epidemiology , Confidence Intervals , Cross-Sectional Studies , Depression/epidemiology , Dyspepsia/diagnosis , Endoscopy, Gastrointestinal , Female , Humans , Malaysia/epidemiology , Male , Marital Status , Middle Aged , Multivariate Analysis , Odds Ratio , Prevalence , Prospective Studies , Risk Factors , Surveys and Questionnaires , Young Adult
14.
Hepatogastroenterology ; 60(121): 124-8, 2013.
Article in English | MEDLINE | ID: mdl-22829558

ABSTRACT

BACKGROUND/AIMS: Using genome-wide case-control association approach, the current study aimed to determine whether genetic polymorphism(s) is/are associated with H. pylori infection among ethnic Malays from the north-eastern region of Peninsular Malaysia, a region with an exceptionally low prevalence for H. pylori infection and gastric cancer. METHODOLOGY: Twenty-three Malay subjects positive for H. pylori confirmed with urease test and histology were enrolled as "cases" and 37 subjects negative for H. pylori were "controls". Both groups were matched for age and environmental risks. Extracted DNA samples (QIAGEN, Germany) from the venous blood of study subjects were genotyped using the Human Mapping 50k xbal array (Affymetrix, USA). High throughput downstream analyses were then used to determine the significant SNP(s) associated with H. pylori infection. RESULTS: Out of 20,361 SNPs filtered using the genotype association test, the top 1% (203) significant SNPs were selected for functional enrichment analysis. Of the 15 "enriched" SNPs, the rs10502974 which was located within the intronic region of Deleted in Colorectal Cancer (DCC) gene was the SNP most significantly associated with H. pylori infection (p=0.00549). CONCLUSIONS: Ethnic Malays is genetically susceptible to H. pylori infection and is possibly mediated through a genetic variation in the DCC gene.


Subject(s)
Genes, DCC , Helicobacter Infections/genetics , Helicobacter pylori , Polymorphism, Single Nucleotide , Adult , Aged , Aged, 80 and over , Genetic Predisposition to Disease , Humans , Malaysia/ethnology , Middle Aged
15.
Helicobacter ; 17(1): 54-61, 2012 Feb.
Article in English | MEDLINE | ID: mdl-22221617

ABSTRACT

BACKGROUND AND AIM: The prevalence of Helicobacter pylori infection is exceptionally low among the Malays in the north-eastern region of Peninsular Malaysia. The reasons are unknown. Our aim was to compare environmental factors that differed in relation to H. pylori prevalence among Malays born and residing in Kelantan. METHODS: A case-control study was conducted among Malays in Kelantan who underwent upper endoscopy between 2000 and 2008. Helicobacter pylori status was determined by gastric histology. Sociocultural and dietary factors were assessed using a validated investigator-directed questionnaire administered after 2008, and the data were analyzed using logistic regression analysis. RESULTS: The study group consisted of 161 subjects (79 H. pylori positive and 82 controls). Univariable analysis identified five poor sanitary practices associated with an increased prevalence of H. pylori infection: use of well water, use of pit latrine, less frequent boiling of drinking water, and infrequent hand wash practice after toilet use and before meals. Multivariable logistic regression analysis identified three variables inversely associated with H. pylori infection: frequent consumption of tea (OR: 0.023, 95% CI: 0.01-0.07), frequent use of "budu" or local anchovy sauce (OR: 0.09, 95% CI: 0.1-0.7), and frequent use of "pegaga" or centenella asiatica (OR: 0.25, 95% CI: 0.1-0.65). CONCLUSIONS: Under the assumption that sanitary, sociocultural, and dietary habits have not changed over the years, we can conclude that an increased risk of H. pylori was associated with unsanitary practices whereas protection was associated with consumption of tea and locally produced foods, "pegaga" and "budu." These dietary factors are candidates for future study on the effects on H. pylori transmission.


Subject(s)
Feeding Behavior , Helicobacter Infections/epidemiology , Aged , Case-Control Studies , Drinking Water , Female , Helicobacter pylori , Humans , Malaysia/epidemiology , Male , Middle Aged , Prevalence , Socioeconomic Factors
16.
World J Gastroenterol ; 17(36): 4130-4, 2011 Sep 28.
Article in English | MEDLINE | ID: mdl-22039329

ABSTRACT

AIM: To determine the seroprevalence of anti-hepatitis A virus (HAV) antibodies in patients with chronic liver disease (CLD) and to justify the need for hepatitis A vaccination. METHODS: Patients (n = 119) were enrolled between July and September 2009. The diagnosis of CLD was based on the presence of viral markers for more than 6 mo. The diagnosis of liver cirrhosis was based on clinical, biochemical and radiological profiles. Patient serum was tested for anti-HAV IgG. RESULTS: The overall anti-HAV seroprevalence was 88.2%. The aetiology of CLD was hepatitis B in 96 patients (80.7%) and hepatitis C in 23 patients (19.3%). Mean age was 44.4 ± 14 years. Patients were grouped according to age as follows: 24 (20.2%) patients in the 21-30 years age group, 22 (18.5%) in the 31-40 years age group, 31 (26.1%) in the 41-50 years age group, 23 (19.3%) in the 51-60 years age group and 19 (16.0%) patients aged greater than 60 years, with reported seroprevalences of 66.7%, 95.5%, 93.5%, 91.3% and 94.7%, respectively. There was a marked increase of seroprevalence in subjects older than 30 years (P = 0.001). CONCLUSION: Our study demonstrated that patients aged greater than 30 years of age were likely to have natural immunity to hepatitis A. Therefore, hepatitis A vaccination may not be routinely required in this age group.


Subject(s)
Hepatitis A Antibodies/blood , Hepatitis A/blood , Hepatitis A/immunology , Hepatitis, Chronic/blood , Hepatitis, Chronic/immunology , Adult , Aged , Female , Hepatitis A/epidemiology , Hepatitis A/prevention & control , Hepatitis A Antibodies/immunology , Hepatitis A Vaccines , Hepatitis, Chronic/epidemiology , Hepatitis, Chronic/prevention & control , Humans , Malaysia/epidemiology , Male , Middle Aged , Seroepidemiologic Studies , Young Adult
17.
ISRN Gastroenterol ; 2011: 105178, 2011.
Article in English | MEDLINE | ID: mdl-21991493

ABSTRACT

A 46-year-old man presented with a history of passing bright red blood per rectum over the last one month. He also had on and off diarrhea with visible mucus in the stool for two months' duration. Further history was unremarkable, and physical examination revealed hemorrhoids which were subsequently banded. A colonoscopy was arranged in view of the prolonged diarrhea whereby an edematous and swollen ileocecal valve was seen. This was shown to be due to Trichuris trichiura infection, confirmed on histopathological examination of biopsies taken from the site. The patient was started on oral albendazole treatment and has been asymptomatic on latest followup. This case illustrates an accidental finding of T. trichuria infection on colonoscopic examination, which was done to investigate the patient's prolonged diarrhea.

18.
Hepatogastroenterology ; 58(110-111): 1725-9, 2011.
Article in English | MEDLINE | ID: mdl-21940338

ABSTRACT

BACKGROUND/AIMS: CYP3A4 is the major cytochrome in humans which shows reduced activity in chronic liver disease as well as in hepatic cirrhosis. The detection of this polymorphism may give an indication on the prognosis of patients having chronic viral hepatitis with superimposed hepatitis A infection. The aim of this study is to correlate the seroprevalence of anti-HAV antibodies in chronic liver disease patients having CYP3A4*18 polymorphisms. METHODOLOGY: This is a prospective study where patients (n=119) blood was tested for anti-HAVIgG and CYP3A4*18 polymorphism. RESULTS: The overall anti-HAV seroprevalence was 88.2%. The etiology of CLD was hepatitis B in 96 patients (80.7%) and hepatitis C in 23 patients (19.3%). There was a significant increase in the age of the prevalence of this disease after 30 years of age (p=0.008). CYP3A4*18 polymorphism was detected in 3 (2.5%) of the patients with chronic liver disease. However, there was no significant association between CP3A4*18 mutation and anti-HAV serology. CONCLUSIONS: Age was the most important factor in determining anti-HAV positivity. It is concluded that CYP3A4*18 genetic polymorphism does not play a main role in influencing the seroprevalence of anti-hepatitis A among chronic viral hepatitis B and C liver disease patients.


Subject(s)
Cytochrome P-450 CYP3A/genetics , Hepatitis A Antibodies/blood , Hepatitis B, Chronic/blood , Hepatitis B, Chronic/genetics , Hepatitis C, Chronic/blood , Hepatitis C, Chronic/genetics , Adult , Age Factors , Aged , Chi-Square Distribution , Female , Humans , Male , Middle Aged , Polymerase Chain Reaction , Polymorphism, Genetic , Prognosis , Prospective Studies , Seroepidemiologic Studies
19.
Blood Coagul Fibrinolysis ; 22(6): 512-20, 2011 Sep.
Article in English | MEDLINE | ID: mdl-21537159

ABSTRACT

Rosiglitazone is an oral hypoglycaemic agent of the thiazolidinedione group. This study aimed to assess changes in the diabetic prothrombotic state via plasminogen activity and changes in surrogate markers of atherosclerotic burden via ankle-brachial pressure index (ABPI) measurements after rosiglitazone was added to a pre-existing type 2 diabetes mellitus treatment regime. A nonblinded interventional study was designed. Fifty-nine patients were enrolled. Rosiglitazone-naïve patients were prescribed oral rosiglitazone 4 mg daily for 10 weeks. ABPI, plasminogen activity, glycosylated haemoglobin (HbA1c) and fasting lipid profile were measured pretreatment and post-treatment. Forty-eight patients completed the study. At the end of this study, mean plasminogen activity improvement was nearly 16% (P<0.05), mean ABPI improvement was 0.01 (P=0.439), mean HbA1c reduction was 0.51% (P<0.05), mean total cholesterol (TC) increase was 0.36 mmol/l (P<0.05), mean high-density lipoprotein cholesterol (HDL-C) increase was 0.15 mmol/l (P<0.05) and mean low-density lipoprotein cholesterol increased by 0.19 mmol/l (P=0.098). Rosiglitazone significantly improved plasminogen activity. There was also significant HbA1c reduction, and rise in both TC and HDL-C. Thus, rosiglitazone potentially improves the atherosclerotic burden and prothrombotic state. In future, more studies are needed to confirm the relationship between rosiglitazone, fibrinolytic system and atheromatous reduction in type 2 diabetes mellitus.


Subject(s)
Atherosclerosis/blood , Atherosclerosis/drug therapy , Diabetes Mellitus, Type 2/blood , Diabetes Mellitus, Type 2/drug therapy , Plasminogen/metabolism , Thiazolidinediones/administration & dosage , Atherosclerosis/complications , Atherosclerosis/pathology , Blood Coagulation Tests , Blood Glucose/analysis , Cholesterol, HDL/blood , Cholesterol, LDL/blood , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 2/pathology , Drug Administration Schedule , Female , Glycated Hemoglobin/analysis , Humans , Hypoglycemic Agents/administration & dosage , Lipoproteins, HDL/blood , Lipoproteins, LDL/blood , Malaysia , Male , Middle Aged , Prothrombin/analysis , Rosiglitazone , Thiazolidinediones/therapeutic use
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