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Mahmud MT, Ahmed F, Rana MJ, Rahman MA, Atta A, Saif-Ur-Rahman KM. Association of HLA gene polymorphisms with Helicobacter pylori related gastric cancer-a systematic review. HLA 2024; 103:e15394. [PMID: 38372631 DOI: 10.1111/tan.15394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 01/28/2024] [Accepted: 02/01/2024] [Indexed: 02/20/2024]
Abstract
The appropriate host cell immune responses for the progression of several diseases, including gastric or stomach cancer (GC), are significantly influenced by HLA polymorphisms. Our objective was to systematically review the evidence linking HLA polymorphisms with the risk of Helicobacter. pylori related GC. We conducted a comprehensive literature search to identify studies published between 2000 and April 2023 on the association of HLA polymorphisms with H. pylori related GC using databases such as Medline through PubMed, Embase, Web of Science (core collection), The Cochrane Library, and Scopus. Two authors independently screened articles, extracted data, and assessed the risk of bias using the Risk of Bias Assessment tool for Non-randomized Studies. From 7872 retrieved studies, 19 met inclusion criteria, encompassing 1656 cases and 16,787 controls across four World Health Organization regions, with Japan contributing the most studies. We explored HLA-A/B/C, HLA-DRB1/DQA1/DQB1, HLA-G, and MICA alleles. Of 29 significant HLA polymorphisms identified, 18 showed a positive association with GC, whereas 11 were negatively associated. HLA-DQB1*06 allele was most frequently associated to susceptibility, as reported in four studies, followed by HLA-DRB1*04 and HLA-DQA1*01, each reported in two studies. Conversely, HLA-G*01, HLA-DQA1*01, HLA-DQA1*05, and HLA-DQB1*03 were identified as protective in two studies each. Additionally, five genotypes and six haplotypes were reported as positive, whereas three genotypes and two haplotypes were negative factors for the disease incidence or mortality. Despite heterogeneity in the study population and types of HLA polymorphisms examined, our analysis indicates certain polymorphisms are associated with H. pylori related GC progression and mortality in specific populations.
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Affiliation(s)
- Md Toslim Mahmud
- Department of Microbiology, Noakhali Science & Technology University, Sonapur, Noakhali, Bangladesh
- Department of Biology, Baylor University, Waco, Texas, USA
| | - Feroz Ahmed
- Department of Biology, University of Texas-Arlington, Arlington, Texas, USA
- Laboratory of Environmental Biology, Division of Environmental Health Sciences, Wadsworth Center, New York State Department of Health, Albany, New York, USA
| | - Md Jowel Rana
- Infectious Diseases Division, icddr,b, Dhaka, Bangladesh
| | - Md Arifur Rahman
- Department of Microbiology, Noakhali Science & Technology University, Sonapur, Noakhali, Bangladesh
| | - Afshan Atta
- Department of Hematopathology, Skims Tertiary Centre Hospital (STCH), Srinagar, India
| | - K M Saif-Ur-Rahman
- College of Medicine, Nursing, and Health Sciences, University of Galway, Galway, Ireland
- Evidence Synthesis Ireland and Cochrane Ireland, University of Galway, Galway, Ireland
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Rashid MU, Rahman Z, Burrowes V, Perin J, Mustafiz M, Monira S, Saif-Ur-Rahman KM, Bhuyian SI, Mahmud MT, Sack RB, Sack D, Alam M, George CM. Rapid dipstick detection of Vibrio cholerae in household stored and municipal water in Dhaka, Bangladesh: CHoBI7 trial. Trop Med Int Health 2016; 22:205-209. [PMID: 27754582 DOI: 10.1111/tmi.12797] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE In urban Dhaka, Bangladesh, 30% of source water samples collected from the households of patients with cholera had detectable Vibrio cholerae. These findings indicate an urgent need for a public health intervention for this population. The Crystal VC® dipstick test is a rapid method for detecting V. cholerae in stool and water. However, to date no study has investigated the use of the rapid dipstick test for household surveillance of stored drinking water. METHODS The efficacy of the Crystal VC® dipstick test for detecting V. cholerae in the Dhaka city municipal water supply and stored household drinking water sources after enrichment for 18 h in alkaline peptone water (APW) was compared to bacterial culture as the gold standard. RESULTS A total of 1648 water samples (824 stored household drinking water samples and 824 municipal water supply samples) were collected from households of patients with cholera. The overall specificity and sensitivity of the dipstick test compared to bacterial culture was 99.6% (95% confidence interval (CI): 99.2%, 99.9%) and 65.6% (95% CI: 55.2%, 75%), respectively. The specificities for stored household drinking water and Dhaka city municipal supply water compared to bacterial culture were 99.8% (95% CI: 99.1%, 100%) and 99.5% (95% CI: 98.6%, 99.9%), respectively (P = 0.138), and the sensitivities were 66.7% (95% CI: 43.0%, 85.4%) and 65.3% (95% CI: 53.5%, 76.0%), respectively (P = 0.891). CONCLUSION The Crystal VC® dipstick is a promising screening tool for cholera outbreak surveillance in resource-limited settings where elimination of false-positive results is critical. The lower than expected sensitivity should be further investigated in future studies.
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Affiliation(s)
| | | | - Vanessa Burrowes
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Jamie Perin
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | | | | | | | | | | | - R Bradley Sack
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - David Sack
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | | | - Christine Marie George
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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Rafique R, Rashid MU, Monira S, Rahman Z, Mahmud MT, Mustafiz M, Saif-Ur-Rahman KM, Johura FT, Islam S, Parvin T, Bhuyian MSI, Sharif MB, Rahman SR, Sack DA, Sack RB, George CM, Alam M. Transmission of Infectious Vibrio cholerae through Drinking Water among the Household Contacts of Cholera Patients (CHoBI7 Trial). Front Microbiol 2016; 7:1635. [PMID: 27803695 PMCID: PMC5067524 DOI: 10.3389/fmicb.2016.01635] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 09/30/2016] [Indexed: 12/20/2022] Open
Abstract
Recurrent cholera causes significant morbidity and mortality among the growing population of Dhaka, the capital city of Bangladesh. Previous studies have demonstrated that household contacts of cholera patients are at >100 times higher risk of cholera during the week after the presentation of the index patient. Our prospective study investigated the mode of transmission of Vibrio cholerae, the cause of cholera, in the households of cholera patients in Dhaka city. Out of the total 420 rectal swab samples analyzed from 84 household contacts and 330 water samples collected from 33 households, V. cholerae was isolated from 20%(17/84) of household contacts, 18%(6/33) of stored drinking water, and 27%(9/33) of source water samples. Phenotypic and molecular analyses results confirmed the V. cholerae isolates to be toxigenic and belonging to serogroup O1 biotype El Tor (ET) possessing cholera toxin of classical biotype (altered ET). Phylogenetic analysis by pulsed-field gel electrophoresis (PFGE) showed the V. cholerae isolates to be clonally linked, as >95% similarity was confirmed by sub-clustering patterns in the PFGE (NotI)-based dendrogram. Mapping results showed cholera patients to be widely distributed across 25 police stations. The data suggesting the transmission of infectious V. cholerae within the household contacts of cholera patients through drinking water underscores the need for safe water to prevent spread of cholera and related deaths in Dhaka city.
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Affiliation(s)
- Raisa Rafique
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
| | - Mahamud-Ur Rashid
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
| | - Shirajum Monira
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
| | - Zillur Rahman
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
| | - Md Toslim Mahmud
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
| | - Munshi Mustafiz
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
| | - K M Saif-Ur-Rahman
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
| | - Fatema-Tuz Johura
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
| | - Saiful Islam
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
| | - Tahmina Parvin
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
| | | | - Mohsena B Sharif
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
| | - Sabita R Rahman
- Department of Microbiology, Dhaka University Dhaka, Bangladesh
| | - David A Sack
- Department of International Health, Johns Hopkins Bloomberg School of Public Health Baltimore, MD, USA
| | - R Bradley Sack
- Department of International Health, Johns Hopkins Bloomberg School of Public Health Baltimore, MD, USA
| | - Christine M George
- Department of International Health, Johns Hopkins Bloomberg School of Public Health Baltimore, MD, USA
| | - Munirul Alam
- International Center for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh
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George CM, Jung DS, Saif-Ur-Rahman KM, Monira S, Sack DA, Mahamud-ur Rashid, Mahmud MT, Mustafiz M, Rahman Z, Bhuyian SI, Winch PJ, Leontsini E, Perin J, Begum F, Zohura F, Biswas S, Parvin T, Sack RB, Alam M. Sustained Uptake of a Hospital-Based Handwashing with Soap and Water Treatment Intervention (Cholera-Hospital-Based Intervention for 7 Days [CHoBI7]): A Randomized Controlled Trial. Am J Trop Med Hyg 2016; 94:428-36. [PMID: 26728766 DOI: 10.4269/ajtmh.15-0502] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 10/14/2015] [Indexed: 11/07/2022] Open
Abstract
Diarrhea is the second leading cause of death in children under 5 years of age globally. The time patients and caregivers spend at a health facility for severe diarrhea presents the opportunity to deliver water, sanitation, and hygiene (WASH) interventions. We recently developed Cholera-Hospital-Based Intervention for 7 days (CHoBI7), a 1-week hospital-based handwashing with soap and water treatment intervention, for household members of cholera patients. To investigate if this intervention could lead to sustained WASH practices, we conducted a follow-up evaluation of 196 intervention household members and 205 control household members enrolled in a randomized controlled trial of the CHoBI7 intervention 6 to 12 months post-intervention. Compared with the control arm, the intervention arm had four times higher odds of household members' handwashing with soap at a key time during 5-hour structured observation (odds ratio [OR]: 4.71, 95% confidence interval [CI]: 2.61, 8.49) (18% versus 50%) and a 41% reduction in households in the World Health Organization very high-risk category for stored drinking water (OR: 0.38, 95% CI: 0.15, 0.96) (58% versus 34%) 6 to 12 months post-intervention. Furthemore, 71% of observed handwashing with soap events in the intervention arm involved the preparation and use of soapy water, which was promoted during the intervention, compared to 9% of control households. These findings demonstrate that the hospital-based CHoBI7 intervention can lead to significant increases in handwashing with soap practices and improved stored drinking water quality 6 to 12 months post-intervention.
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Affiliation(s)
- Christine Marie George
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Danielle S Jung
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - K M Saif-Ur-Rahman
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Shirajum Monira
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - David A Sack
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Mahamud-ur Rashid
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md Toslim Mahmud
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Munshi Mustafiz
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Zillur Rahman
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Sazzadul Islam Bhuyian
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Peter J Winch
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Elli Leontsini
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Jamie Perin
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Farzana Begum
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Fatema Zohura
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Shwapon Biswas
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Tahmina Parvin
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - R Bradley Sack
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Munirul Alam
- Johns Hopkins University, Baltimore, Maryland; International Centre for Diarrhoeal Disease Research Bangladesh (icddr,b), Dhaka, Bangladesh
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