1
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Butzin-Dozier Z, Ji Y, Coyle J, Malenica I, McQuade ETR, Grembi JA, Platts-Mills JA, Houpt ER, Graham JP, Ali S, Rahman MZ, Alauddin M, Famida SL, Akther S, Hossen MS, Mutsuddi P, Shoab AK, Rahman M, Islam MO, Miah R, Taniuchi M, Liu J, Alauddin S, Stewart CP, Luby SP, Colford JM, Hubbard AE, Mertens AN, Lin A. Treatment Heterogeneity of Water, Sanitation, Hygiene, and Nutrition Interventions on Child Growth by Environmental Enteric Dysfunction and Pathogen Status for Young Children in Bangladesh. medRxiv 2024:2024.03.21.24304684. [PMID: 38585931 PMCID: PMC10996736 DOI: 10.1101/2024.03.21.24304684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Background Water, sanitation, hygiene (WSH), nutrition (N), and combined (N+WSH) interventions are often implemented by global health organizations, but WSH interventions may insufficiently reduce pathogen exposure, and nutrition interventions may be modified by environmental enteric dysfunction (EED), a condition of increased intestinal permeability and inflammation. This study investigated the heterogeneity of these treatments' effects based on individual pathogen and EED biomarker status with respect to child linear growth. Methods We applied cross-validated targeted maximum likelihood estimation and super learner ensemble machine learning to assess the conditional treatment effects in subgroups defined by biomarker and pathogen status. We analyzed treatment (N+WSH, WSH, N, or control) randomly assigned in-utero, child pathogen and EED data at 14 months of age, and child LAZ at 28 months of age. We estimated the difference in mean child length for age Z-score (LAZ) under the treatment rule and the difference in stratified treatment effect (treatment effect difference) comparing children with high versus low pathogen/biomarker status while controlling for baseline covariates. Results We analyzed data from 1,522 children, who had median LAZ of -1.56. We found that myeloperoxidase (N+WSH treatment effect difference 0.0007 LAZ, WSH treatment effect difference 0.1032 LAZ, N treatment effect difference 0.0037 LAZ) and Campylobacter infection (N+WSH treatment effect difference 0.0011 LAZ, WSH difference 0.0119 LAZ, N difference 0.0255 LAZ) were associated with greater effect of all interventions on growth. In other words, children with high myeloperoxidase or Campylobacter infection experienced a greater impact of the interventions on growth. We found that a treatment rule that assigned the N+WSH (LAZ difference 0.23, 95% CI (0.05, 0.41)) and WSH (LAZ difference 0.17, 95% CI (0.04, 0.30)) interventions based on EED biomarkers and pathogens increased predicted child growth compared to the randomly allocated intervention. Conclusions These findings indicate that EED biomarker and pathogen status, particularly Campylobacter and myeloperoxidase (a measure of gut inflammation), may be related to impact of N+WSH, WSH, and N interventions on child linear growth.
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Affiliation(s)
| | - Yunwen Ji
- School of Public Health, University of California, Berkeley, Berkeley, CA USA
| | - Jeremy Coyle
- School of Public Health, University of California, Berkeley, Berkeley, CA USA
| | - Ivana Malenica
- School of Public Health, University of California, Berkeley, Berkeley, CA USA
| | | | - Jessica Anne Grembi
- Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, CA USA
| | | | - Eric R. Houpt
- School of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Jay P. Graham
- School of Public Health, University of California, Berkeley, Berkeley, CA USA
| | - Shahjahan Ali
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Md Ziaur Rahman
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Mohammad Alauddin
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Syeda L. Famida
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Salma Akther
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Md. Saheen Hossen
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Palash Mutsuddi
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Abul K. Shoab
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Mahbubur Rahman
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Md. Ohedul Islam
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Rana Miah
- International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Mami Taniuchi
- School of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Jie Liu
- School of Public Health, Qingdao University, Qingdao, China
| | | | | | - Stephen P. Luby
- Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, CA USA
| | - John M. Colford
- School of Public Health, University of California, Berkeley, Berkeley, CA USA
| | - Alan E. Hubbard
- School of Public Health, University of California, Berkeley, Berkeley, CA USA
| | - Andrew N. Mertens
- School of Public Health, University of California, Berkeley, Berkeley, CA USA
| | - Audrie Lin
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, Santa Cruz, CA USA
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Wang X, Alauddin M, Zafar AU, Zhang Q, Ahsan T, Barua Z. WeChat Moments Among International Students: Building Guanxi Networks in China. Journal of Global Information Technology Management 2023. [DOI: 10.1080/1097198x.2023.2166752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Xuhui Wang
- School of Business Administration, Dongbei University of Finance and Economics, Dalian, P. R. China
| | - Mohammad Alauddin
- School of Business Administration, Dongbei University of Finance and Economics, Dalian, P. R. China
- Department of Marketing, University of Chittagong, Chattogram, Bangladesh
| | - Abaid Ullah Zafar
- College of Business and Public Management, Wenzhou-Kean University, China
| | - Qilin Zhang
- School of Business Administration, Dongbei University of Finance and Economics, Dalian, P. R. China
| | - Tanveer Ahsan
- Department of Finance and Accounting, Rennes School of Business, Rennes, France
| | - Zapan Barua
- Department of Marketing, University of Chittagong, Chattogram, Bangladesh
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3
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Habib N, Rankin P, Alauddin M, Cramb R. Determinants of livelihood diversification in rural rain-fed region of Pakistan: evidence from fractional multinomial logit (FMLOGIT) estimation. Environ Sci Pollut Res Int 2023; 30:13185-13196. [PMID: 36125683 PMCID: PMC9486792 DOI: 10.1007/s11356-022-23040-6] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 09/12/2022] [Indexed: 06/15/2023]
Abstract
Sustainable livelihoods in less developed countries are threatened by human, natural, physical, social and financial factors. Pakistan is also facing severe negative impacts of these factors in the form of climate shocks, market imperfections and insufficient formal credit availability on rural livelihoods. This study explores rural Pakistani's adaptation to these threats by diversifying income sources and explores the determining factors for adopting specific livelihood diversification strategies. The study is based on a quantitative survey of 295 households in three districts of rain-fed rural regions of Pakistan's Punjab with differing annual rainfall. Results showed that households mitigated against threats to their livelihood by having a diversity of income sources (Simpson Diversity Index = 0.61). Moreover, fractional multinomial regression modelling revealed that greater education was associated with a more diversified livelihood strategy, where income was predominantly derived from off-farm and non-farm livelihood activities. On the other hand, households with older members, more livestock and larger farm size focused their livelihoods on their own farms, or primarily diversified into an off-farm strategy by working on other farms. These findings underscore the importance of improved access to education and infrastructure for livelihood diversification. A policy that focuses on reducing low literacy rates in rural Pakistan may also provide new avenues of livelihood diversifications with enhancement of rural literacy rate to mitigate the risks associated with livelihood strategies of smallholders.
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Affiliation(s)
- Nusrat Habib
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, 4072, Australia.
| | - Peter Rankin
- Institute for Social Science Research, The University of Queensland, Brisbane, 4072, Australia
| | - Mohammad Alauddin
- School of Economics, The University of Queensland, Brisbane, 4072, Australia
| | - Rob Cramb
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, 4072, Australia
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4
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Khan MM, Yousuf MA, Ahamed P, Alauddin M, Tonu NT. Electrochemical Detection of Dihydroxybenzene Isomers at a Pencil Graphite Based Electrode. ACS Omega 2022; 7:29391-29405. [PMID: 36033678 PMCID: PMC9404491 DOI: 10.1021/acsomega.2c03651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
In this work, an HB pencil electrode (HBPE) was electrochemically modified by amino acids (AAs) glycine (GLY) and aspartic acid (ASA) and designated as GLY-HB and ASA-HB electrodes. They were used in the detection of dihydroxybenzene isomers (DHBIs) such as hydroquinone (HQ), catechol (CC), and resorcinol (RS), by cyclic voltammetry (CV), and by differential pulse voltammetry. HBPE was characterized by scanning electron microscopy and energy-dispersive X-ray spectroscopy. These three electrodes showed a linear relationship of current with concentration of DHBIs, and the electrochemical processes were diffusion controlled in all cases. In simultaneous detection, the limit of detection, based on signal-to-noise ratio (S/N = 3), for HQ, CC, and RS was 12.473, 16.132, and 25.25 μM, respectively, at bare HBPE; 5.498, 7.119, and 14.794 μM, respectively, at GLY-HB; and 22.459, 25.478, and 38.303 μM, respectively, at ASA-HB. The sensitivity for HQ, CC, and RS was 470.481, 363.781, and 232.416 μA/mM/cm2, respectively, at bare HBPE; 364.785, 282.712, and 135.560 μA/mM/cm2, respectively, at GLY-HB; and 374.483, 330.108, and 219.574, respectively, at ASA-HB. The interference studies clarified the suitability and reliability of the electrodes for the detection of HQ, CC, and RS in an environmental system. Real sample analysis was done using tap water, and the proposed electrodes expressed recovery with high reproducibility. Meanwhile, these three electrodes have excellent sensitivity and selectivity, which can be used as a promising technique for the detection of DHBIs simultaneously.
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Affiliation(s)
- Md. Muzahedul
I. Khan
- Department
of Chemistry, Khulna University of Engineering
and Technology, Khulna 9203, Bangladesh
| | - Mohammad A. Yousuf
- Department
of Chemistry, Khulna University of Engineering
and Technology, Khulna 9203, Bangladesh
| | - Parbhej Ahamed
- Department
of Chemistry, Khulna University of Engineering
and Technology, Khulna 9203, Bangladesh
| | - Mohammad Alauddin
- Department
of Theoretical and Computational Chemistry, University of Dhaka, Dhaka 1000, Bangladesh
| | - Nusrat T. Tonu
- Department
of Chemistry, Khulna University of Engineering
and Technology, Khulna 9203, Bangladesh
- Chemistry
Discipline, Khulna University, Khulna 9208, Bangladesh
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5
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Alauddin M, Hossain MZ, Rahman MM, Roy MK, Minto MR, Islam MA, Islam MK, Islam MS, Saha MK, Mahmud AA, Siddiquee TH, Seraji SI. Management of Neglected Rupture of Tendoachilles with Long Gap by Flexor Hallucis Longus Tendon Transfer. Mymensingh Med J 2022; 31:861-868. [PMID: 35780375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The tendo achilles is one of most important tendon in human body which often injured through direct trauma or indirect stress on a weakened tendon. Longer the duration after injury the injured parts likely to move apart, fibrosis and degeneration leading to difficulty in repair or reconstruction. Usually a phase of 4 weeks or more without specific treatment is regarded as chronic or neglected rupture. Different authors described many management protocols about the tendo achilles rupture but there is no procedure of choice for neglected rupture with long gap. Prospective case series of 21 patients of neglected tendo achilles rupture with long gap treated with flexor hallucis longus tendon (FHLT) transfer was taken for study from January 2019 to December 2020 in Mymensingh Medical College Hospital, Bangladesh. Average age of patients was 39.47 years with range 22-65 years. Fifteen (15) cases of traumatic rupture in this study with average age 32.66 years and pathologic 6 cases with average age 56.5 years were recorded. We grafted FHLT from channel by incising Henry's knot. Krackow et al.'s technique was followed for tendon mobilization and bone fixation. We made procedure simpler and cheaper; instead of using interference screw the sutured tendon pulled through the heel and anchored over rubber tube or button by Cole method. Post-operative complications were less with one patient with superficial infection which eventually recovered 3 cases of mild pain and 2 cases of numbness. Questionnaire for surgical outcome measure are satisfactory in 19 patients (90.47%). Final follow up AOFAS score at 6 month (91.61±5.41) was highly significant (p<0.001) in comparison to preoperative score (38.71±9.78). These are comparable to other study. Above mentioned scores indicate the reliability of the surgical system. But our study is a prospective case series with minimum cases. To establish the best procedure for neglected tendo achilles rupture with long gap we recommend further study with larger group and Randomized Controlled Trial (RCT) study among different procedure.
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Affiliation(s)
- M Alauddin
- Dr Md Alauddin, Assistant Professor, Department of Orthopaedics, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
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Alauddin M, Roy M, Song JK, Park SM. Rearrangement of aniline(
H
2
O
)
n
(
n
= 0–12) clusters upon photoionization and their excited state properties: Density functional theory and time‐dependent density functional theory study. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mohammad Alauddin
- Department of Theoretical and Computational Chemistry University of Dhaka Dhaka Bangladesh
| | - Madhusudan Roy
- Department of Computer Science and Engineering University of Science and Technology Chittagong Bangladesh
| | - Jae Kyu Song
- Department of Chemistry Kyung Hee University Seoul Republic of Korea
| | - Seung Min Park
- Department of Chemistry Kyung Hee University Seoul Republic of Korea
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7
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Hossain MZ, Roy MK, Mamun MA, Islam SI, Begum T, Minto MR, Islam MK, Alauddin M, Alam MT, Rahman MM. Clinical Outcome on Comminuted Femoral Shaft Fractures in Adults Treated by Minimally Invasive Plate Osteosynthesis (MIPO) with Locking Plate. Mymensingh Med J 2021; 30:657-665. [PMID: 34226452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Intramedullary nailing is a pillar in the treatment of femoral shaft fractures. But it is not possible in all cases especially in comminuted fractures. This study has been designed to explain the importance of Minimally Invasive Plate Osteosynthesis (MIPO) with the locking plate in the treatment of comminuted Femoral Shaft Fracture. Twenty (20) such patients were treated by MIPO and analysis has been done in this study to get fruitful result and to find out the effectiveness of this procedure who were admitted at Mymensingh Medical College Hospital, Mymensingh, a tertiary level hospital of Bangladesh from February 2018 to January 2019. Mean age of the patients were 49.20±14.41 years. Based on AO classification, there were 4, 8 and 8 patients belong to type A, B and C respectively. The union period for all the patients was in between 12 to 14 weeks. The mean union period was 12.90±1.997 weeks. Mean follow up period was 19.70±2.77 weeks. Mean full weight bearing period was 16.50±1.10 weeks. In Thoresen scoring system excellent result was 9(45%), good result was 10(20%) and fair result was 01(5%). Mal-alignment happened in two cases. However, delayed union and broken screws were found in two cases each of which was treated accordingly. Comminuted Femoral shaft fracture with MIPO procedure is more effective treatment than intramedullary nailing. Furthermore, mal-alignment is the basic complexity that must be taken away intraoperatively.
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Affiliation(s)
- M Z Hossain
- Dr Md Zakir Hossain, Assistant Professor, Department of Orthopedics, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
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8
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Rahman MM, Alauddin M, Alauddin ST, Siddique AB, Islam MR, Agosta G, Mondal D, Naidu R. Bioaccessibility and speciation of arsenic in children's diets and health risk assessment of an endemic area in Bangladesh. J Hazard Mater 2021; 403:124064. [PMID: 33265062 DOI: 10.1016/j.jhazmat.2020.124064] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/24/2020] [Accepted: 09/19/2020] [Indexed: 06/12/2023]
Abstract
This study determines the bioaccessibility of toxic and carcinogenic arsenic (As) in composite food samples and evaluates potential exposure from food intake in Bangladesh children. Total As (tAs), inorganic As (iAs) and bioaccessible As (BAs) in food composite samples consumed by children were compared between an exposed and a control group (based on As in drinking water). Total As concentrations in composite food samples of children exposed to mean As level of 331 µg/l in drinking and cooking water ranged from 586 to 1975 µg/kg, dry weight over 76-90 µg/kg in the unexposed group. Average iAs in food composites was 73.9% (range: 49.3-90.8%). The fraction of BAs using gastric and gastrointestinal phases was 91 ± 13% and 98 ± 11%, respectively. Daily intake of iAs in the exposed group ranged from 0.41 to 6.38 µg per kg body weight (BW), which was much higher than the unexposed group (0.08-0.15 µg per kg BW). High iAs content and BAs in composite food samples indicated the elevated risk to exposed children. Further research should include both adults and children using larger sample size to determine overall As exposure from food intake in Bangladesh, attention must be given to lowering of As in food.
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Affiliation(s)
- Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan Campus, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC-CARE), ATC Building, The University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Mohammad Alauddin
- Department of Chemistry, Wagner College, Staten Island, NY 10301, USA
| | - Sarah T Alauddin
- Department of Chemistry, Wagner College, Staten Island, NY 10301, USA
| | - Abu Bakkar Siddique
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan Campus, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC-CARE), ATC Building, The University of Newcastle, Callaghan, NSW 2308, Australia; Department of Agriculture, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
| | - Md Rashidul Islam
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan Campus, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC-CARE), ATC Building, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Gabriella Agosta
- Department of Chemistry, Wagner College, Staten Island, NY 10301, USA
| | - Debapriya Mondal
- School of Science, Engineering & Environment, University of Salford, Salford M5 4WT, UK
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan Campus, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC-CARE), ATC Building, The University of Newcastle, Callaghan, NSW 2308, Australia
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9
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Lin A, Ali S, Arnold BF, Rahman MZ, Alauddin M, Grembi J, Mertens AN, Famida SL, Akther S, Hossen MS, Mutsuddi P, Shoab AK, Hussain Z, Rahman M, Unicomb L, Ashraf S, Naser AM, Parvez SM, Ercumen A, Benjamin-Chung J, Haque R, Ahmed T, Hossain MI, Choudhury N, Jannat K, Alauddin ST, Minchala SG, Cekovic R, Hubbard AE, Stewart CP, Dewey KG, Colford JM, Luby SP. Effects of Water, Sanitation, Handwashing, and Nutritional Interventions on Environmental Enteric Dysfunction in Young Children: A Cluster-randomized, Controlled Trial in Rural Bangladesh. Clin Infect Dis 2021; 70:738-747. [PMID: 30963177 DOI: 10.1093/cid/ciz291] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 04/04/2019] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND We hypothesized that drinking water, sanitation, handwashing (WSH), and nutritional interventions would improve environmental enteric dysfunction (EED), a potential contributor to stunting. METHODS Within a subsample of a cluster-randomized, controlled trial in rural Bangladesh, we enrolled pregnant women in 4 arms: control, WSH, child nutrition counseling plus lipid-based nutrient supplements (N), and nutrition plus WSH (N+WSH). Among the birth cohort, we measured biomarkers of gut inflammation (myeloperoxidase, neopterin), permeability (alpha-1-antitrypsin, lactulose, mannitol), and repair (regenerating gene 1β) at median ages 3, 14, and 28 months. Analysis was intention-to-treat. RESULTS We assessed 1512 children. At age 3 months, compared to controls, neopterin was reduced by nutrition (-0.21 log nmol/L; 95% confidence interval [CI], -.37, -.05) and N+WSH (-0.20 log nmol/L; 95% CI, -.34, -.06) interventions; similar reductions were observed at 14 months. At 3 months, all interventions reduced lactulose and mannitol (-0.60 to -0.69 log mmol/L). At 28 months, myeloperoxidase was elevated in the WSH and nutrition arms (0.23-0.27 log ng/mL) and lactulose was higher in the WSH arm (0.30 log mmol/L; 95% CI, .07, .53). CONCLUSIONS Reductions in permeability and inflammation at ages 3 and 14 months suggest that the interventions promoted healthy intestinal maturation; however, by 28 months, the WSH and nutrition arms showed elevated EED biomarkers. These results underscore the importance of developing a better understanding of EED pathophysiology and targeting interventions early in childhood, when they are likely to have the largest benefit to intestinal health. CLINICAL TRIALS REGISTRATION NCT01590095.
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Affiliation(s)
- Audrie Lin
- Division of Epidemiology and Biostatistics, School of Public Health, University of California-Berkeley
| | - Shahjahan Ali
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Benjamin F Arnold
- Division of Epidemiology and Biostatistics, School of Public Health, University of California-Berkeley
| | - Md Ziaur Rahman
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | | | - Jessica Grembi
- Division of Infectious Diseases and Geographic Medicine, Stanford University, California
| | - Andrew N Mertens
- Division of Epidemiology and Biostatistics, School of Public Health, University of California-Berkeley
| | - Syeda L Famida
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Salma Akther
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Md Saheen Hossen
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Palash Mutsuddi
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Abul K Shoab
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Zahir Hussain
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Mahbubur Rahman
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Leanne Unicomb
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Sania Ashraf
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Abu Mohd Naser
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Sarker M Parvez
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Ayse Ercumen
- Division of Epidemiology and Biostatistics, School of Public Health, University of California-Berkeley
| | - Jade Benjamin-Chung
- Division of Epidemiology and Biostatistics, School of Public Health, University of California-Berkeley
| | - Rashidul Haque
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Tahmeed Ahmed
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Md Iqbal Hossain
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Nuzhat Choudhury
- Nutrition and Clinical Services Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Kaniz Jannat
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Sarah T Alauddin
- Department of Chemistry, Wagner College, Staten Island, New York
| | | | - Rabije Cekovic
- Department of Chemistry, Wagner College, Staten Island, New York
| | - Alan E Hubbard
- Division of Epidemiology and Biostatistics, School of Public Health, University of California-Berkeley
| | | | | | - John M Colford
- Division of Epidemiology and Biostatistics, School of Public Health, University of California-Berkeley
| | - Stephen P Luby
- Division of Infectious Diseases and Geographic Medicine, Stanford University, California
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10
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Roy MK, Islam MS, Hossain MZ, Alauddin M, Alam MT, Sarkar TK, Banik SM, Nandi B, Ali MA, Begum T. Clinical Outcome in Intra Articular Distal Humerus Fractures in Adults Treated with Different Hardware in a Tertiary Level Hospital of Bangladesh. Mymensingh Med J 2021; 30:73-78. [PMID: 33397854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In adults, distal humerus fractures are infrequent and frequently intra-articular. Customarily encompass both medial and lateral columns. Operative management gives constructive outcomes. The aim of this study was to evaluate clinical outcome in intra articular distal humerus fractures in adults treated by different hardware. This prospective study consists of 20 purposively selected patients with intra articular distal humerus fractures treated by surgical intervention with different hardware who were admitted to Mymensingh Medical College and Hospital, Bangladesh in between November 2016 to October 2018. Surgical approaches were standard dorsal with or without olecranon osteotomy. The mean age of the patients was 32.3 years, range between 18-55 years. The maximum patients i.e. 85% were between 18-45 years. Seventy percent (70%) of the cases admitted were due to Road traffic accident (RTA). Most of the patients were males 14(70%) with right upper limb was involved in 13(65%) cases. Mean Mayo Elbow Performance Score was 81.5 post-operatively. According to Mayo Elbow Performance (MEP) score clinical outcome was excellent in 20%, good in 50%, fair in 25% and poor in 10% of patients. Distal humerus fractures are censorious in nature. Proper anatomical articular reconstruction and stable fixation by surgical intervention helps in fruitful results.
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Affiliation(s)
- M K Roy
- Dr Malay Kumar Roy, Assistant Professor, Department of Orthopaedics, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
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Affiliation(s)
- Mohammad Alauddin
- Department of Theoretical and Computational Chemistry University of Dhaka Dhaka Bangladesh
| | - Madhusudan Roy
- Department of Chemistry Kyung Hee University Seoul 02447 Republic of Korea
| | - Sang Hwan Nam
- Department of Chemistry Kyung Hee University Seoul 02447 Republic of Korea
| | - Jae Kyu Song
- Department of Chemistry Kyung Hee University Seoul 02447 Republic of Korea
| | - Seung Min Park
- Department of Chemistry Kyung Hee University Seoul 02447 Republic of Korea
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Roy M, Alauddin M, Song JK, Park SM. Structures of aniline(pyrrole) +, aniline(ethanol) +, and aniline-(benzene) . Spectrochim Acta A Mol Biomol Spectrosc 2018; 204:665-669. [PMID: 29982157 DOI: 10.1016/j.saa.2018.07.002] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 06/14/2018] [Accepted: 07/01/2018] [Indexed: 06/08/2023]
Abstract
Molecular structures of aniline(pyrrole)+, aniline(ethanol)+, and aniline(benzene)+ produced via resonance two-photon ionization at 266 nm were analyzed by infrared predissociation spectroscopy coupled with tandem mass spectrometry. Structural optimization and frequency calculation using density functional theory were carried out to suggest the most probable isomers which are in good agreement with the observed infrared absorption spectra. Intermolecular bonds in the cluster ions were formed such that the electronegative oxygen atom of the solvent molecule or the pi electron of the aromatic ring forms a hydrogen bonding to NH of aniline.
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Affiliation(s)
- Madhusudan Roy
- Department of Chemistry, Kyung Hee University, Seoul 02447, South Korea
| | - Mohammad Alauddin
- Department of Chemistry, Kyung Hee University, Seoul 02447, South Korea
| | - Jae Kyu Song
- Department of Chemistry, Kyung Hee University, Seoul 02447, South Korea
| | - Seung Min Park
- Department of Chemistry, Kyung Hee University, Seoul 02447, South Korea.
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Milton AH, Attia J, Alauddin M, McEvoy M, McElduff P, Hussain S, Akhter A, Akter S, Islam MM, Ahmed AMS, Iyengar V, Islam MR. Assessment of Nutritional Status of Infants Living in Arsenic-Contaminated Areas in Bangladesh and Its Association with Arsenic Exposure. Int J Environ Res Public Health 2018; 15:ijerph15010057. [PMID: 29301293 PMCID: PMC5800156 DOI: 10.3390/ijerph15010057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 12/26/2017] [Accepted: 12/27/2017] [Indexed: 11/16/2022]
Abstract
Data is scarce on early life exposure to arsenic and its association with malnutrition during infancy. This study followed the nutritional status of a cohort of 120 infants from birth to 9 months of age in an arsenic contaminated area in Bangladesh. Anthropometric data was collected at 3, 6 and 9 months of the infant's age for nutritional assessment whereas arsenic exposure level was assessed via tube well drinking water arsenic concentration at the initiation of the study. Weight and height measurements were converted to Z-scores of weight for age (WAZ-underweight), height for age (HAZ-stunting), weight for height (WHZ-wasting) for children by comparing with WHO growth standard. Arsenic exposure levels were categorized as <50 μg/L and ≥50 μg/L. Stunting rates (<-2 SD) were 10% at 3 months and 44% at both 6 and 9 months. Wasting rates (<-2 SD) were 23.3% at 3 months and underweight rates (<-2 SD) were 25% and 10% at 3 and 6 months of age, respectively. There was a significant association of stunting with household drinking water arsenic exposure ≥50 μg/L at age of 9 months (p = 0.009). Except for stunting at 9 months of age, we did not find any significant changes in other nutritional indices over time or with levels of household arsenic exposure in this study. Our study suggests no association between household arsenic exposure and under-nutrition during infancy; with limiting factors being small sample size and short follow-up. Difference in stunting at 9 months by arsenic exposure at ≥50 μg/L might be a statistical incongruity. Further longitudinal studies are warranted to establish any association.
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Affiliation(s)
- Abul Hasnat Milton
- Centre for Clinical Epidemiology & Biostatistics (CCEB), School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Kookaburra Close, New Lambton Heights, NSW 2305, Australia.
| | - John Attia
- Centre for Clinical Epidemiology & Biostatistics (CCEB), School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Kookaburra Close, New Lambton Heights, NSW 2305, Australia.
| | - Mohammad Alauddin
- Department of Chemistry, Wagner College, 1 Campus Road, Staten Island, NY 10301, USA.
| | - Mark McEvoy
- Centre for Clinical Epidemiology & Biostatistics (CCEB), School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Kookaburra Close, New Lambton Heights, NSW 2305, Australia.
| | - Patrick McElduff
- Centre for Clinical Epidemiology & Biostatistics (CCEB), School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Kookaburra Close, New Lambton Heights, NSW 2305, Australia.
| | - Sumaira Hussain
- Centre for Clinical Epidemiology & Biostatistics (CCEB), School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Kookaburra Close, New Lambton Heights, NSW 2305, Australia.
| | - Ayesha Akhter
- Goulburn Valley Health, Graham Street, Shepparton, VIC 3630, Australia.
| | - Shahnaz Akter
- Department of Paediatrics, Institute of Child and Mother Health, Matuail, Dhaka 1212, Bangladesh.
| | - M Munirul Islam
- International Centre for Diarrhoeal Diseases Research, Mohakhali, Dhaka 1212, Bangladesh.
| | - A M Shamsir Ahmed
- International Centre for Diarrhoeal Diseases Research, Mohakhali, Dhaka 1212, Bangladesh.
| | - Vasu Iyengar
- Goulburn Valley Health, Graham Street, Shepparton, VIC 3630, Australia.
- Department of Rural Health, University of Melbourne, Graham Street, Shepparton, VIC 3630, Australia.
- School of Health and Social Development, Deakin University, VIC 3125, Australia.
| | - Md Rafiqul Islam
- Centre for Clinical Epidemiology & Biostatistics (CCEB), School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Kookaburra Close, New Lambton Heights, NSW 2305, Australia.
- Goulburn Valley Health, Graham Street, Shepparton, VIC 3630, Australia.
- Department of Rural Health, University of Melbourne, Graham Street, Shepparton, VIC 3630, Australia.
- School of Health and Social Development, Deakin University, VIC 3125, Australia.
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Ponomarenko O, La Porte PF, Singh SP, Langan G, Fleming DEB, Spallholz JE, Alauddin M, Ahsan H, Ahmed S, Gailer J, George GN, Pickering IJ. Selenium-mediated arsenic excretion in mammals: a synchrotron-based study of whole-body distribution and tissue-specific chemistry. Metallomics 2017; 9:1585-1595. [PMID: 29058732 DOI: 10.1039/c7mt00201g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Arsenicosis, a syndrome caused by ingestion of arsenic contaminated drinking water, currently affects millions of people in South-East Asia and elsewhere. Previous animal studies revealed that the toxicity of arsenite essentially can be abolished if selenium is co-administered as selenite. Although subsequent studies have provided some insight into the biomolecular basis of this striking antagonism, many details of the biochemical pathways that ultimately result in the detoxification and excretion of arsenic using selenium supplements have yet to be thoroughly studied. To this end and in conjunction with the recent Phase III clinical trial "Selenium in the Treatment of Arsenic Toxicity and Cancers", we have applied synchrotron X-ray techniques to elucidate the mechanisms of this arsenic-selenium antagonism at the tissue and organ levels using an animal model. X-ray fluorescence imaging (XFI) of cryo-dried whole-body sections of laboratory hamsters that had been injected with arsenite, selenite, or both chemical species, provided insight into the distribution of both metalloids 30 minutes after treatment. Co-treated animals showed strong co-localization of arsenic and selenium in the liver, gall bladder and small intestine. X-ray absorption spectroscopy (XAS) of freshly frozen organs of co-treated animals revealed the presence in liver tissues of the seleno bis-(S-glutathionyl) arsinium ion, which was rapidly excreted via bile into the intestinal tract. These results firmly support the previously postulated hepatobiliary excretion of the seleno bis-(S-glutathionyl) arsinium ion by providing the first data pertaining to organs of whole animals.
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Affiliation(s)
- Olena Ponomarenko
- Molecular and Environmental Science Research Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada.
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Abstract
In Bangladesh more than 1.15 million couples get married every year and approximately 90 percent of female spouses are below nineteen years of age. It is widely reported that newly married couples (those who are married within the last 12 months) were less likely to have been visited by field workers and have had limited access to family planning including reproductive health services. Findings from 1996–97 Demographic and Health Survey (BDHS) suggest that little change has occurred in the age specific fertility rates among the females belonging to age groups fifteen to nineteen and twenty to twenty-four in the last five years [1]. It is also observed that the current contraceptive use rate in age group fifteen to nineteen was 32.9 percent and approximately 10 percent of women in age group fifteen to nineteen do not want any children. The male methods use rate among the newlywed couples was double the national rate. It suggests that males from the younger generation are more likely to practice male contraceptive methods compared to the older generation. Married youths and those soon-to-be-married are critical demographic segments of the population. Achieving early population stabilization depends on how adequately and effectively the national reproductive health program serves them and how other development programs simultaneously compliments to health efforts. Using 1996–97 BDHS data, this article examines fertility and contraceptive behavior of the married youths in Bangladesh.
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Affiliation(s)
- M. Alauddin
- Country Representative, Pathfinder International
| | - Ubaidur Rob
- Resident Advisor, Population Council, Dhaka, Bangladesh
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George GN, Gailer J, Ponomarenko O, La Porte PF, Strait K, Alauddin M, Ahsan H, Ahmed S, Spallholz J, Pickering IJ. Observation of the seleno bis-(S-glutathionyl) arsinium anion in rat bile. J Inorg Biochem 2016; 158:24-29. [DOI: 10.1016/j.jinorgbio.2016.01.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 12/30/2015] [Accepted: 01/18/2016] [Indexed: 12/01/2022]
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Hoy-Schulz YE, Jannat K, Roberts T, Zaidi S, Rahman MM, Alauddin M, Unicomb L, Luby S, Parsonnet J. Effect of Probiotics on Markers of Gut Health in Bangladeshi Infants. Open Forum Infect Dis 2015. [DOI: 10.1093/ofid/ofv133.1175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Fleming DE, Groves JW, Gherase MR, George GN, Pickering IJ, Ponomarenko O, Langan G, Spallholz JE, Alauddin M, Ahsan H, Ahmed S, La Porte PF. Soft tissue measurement of arsenic and selenium in an animal model using portable X-ray fluorescence. Radiat Phys Chem Oxf Engl 1993 2015. [DOI: 10.1016/j.radphyschem.2015.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Alauddin M, Gloaguen E, Brenner V, Tardivel B, Mons M, Zehnacker‐Rentien A, Declerck V, Aitken DJ. Intrinsic Folding Proclivities in Cyclic β‐Peptide Building Blocks: Configuration and Heteroatom Effects Analyzed by Conformer‐Selective Spectroscopy and Quantum Chemistry. Chemistry 2015; 21:16479-93. [DOI: 10.1002/chem.201501794] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Mohammad Alauddin
- CEA, Laboratoire Interactions Dynamique et Lasers (LIDyL), Bât. 522, 91191 Gif‐sur‐Yvette (France)
- CNRS, Laboratoire Francis Perrin URA 2453, 91191 Gif‐sur‐Yvette (France)
- Current address: Department of Chemistry, University of Dhaka, Dhaka‐1000 (Bangladesh)
| | - Eric Gloaguen
- CEA, Laboratoire Interactions Dynamique et Lasers (LIDyL), Bât. 522, 91191 Gif‐sur‐Yvette (France)
- CNRS, Laboratoire Francis Perrin URA 2453, 91191 Gif‐sur‐Yvette (France)
| | - Valérie Brenner
- CEA, Laboratoire Interactions Dynamique et Lasers (LIDyL), Bât. 522, 91191 Gif‐sur‐Yvette (France)
- CNRS, Laboratoire Francis Perrin URA 2453, 91191 Gif‐sur‐Yvette (France)
| | - Benjamin Tardivel
- CEA, Laboratoire Interactions Dynamique et Lasers (LIDyL), Bât. 522, 91191 Gif‐sur‐Yvette (France)
- CNRS, Laboratoire Francis Perrin URA 2453, 91191 Gif‐sur‐Yvette (France)
| | - Michel Mons
- CEA, Laboratoire Interactions Dynamique et Lasers (LIDyL), Bât. 522, 91191 Gif‐sur‐Yvette (France)
- CNRS, Laboratoire Francis Perrin URA 2453, 91191 Gif‐sur‐Yvette (France)
| | | | - Valérie Declerck
- CP3A Organic Synthesis Group, ICMMO, UMR 8182, Université Paris Sud, Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex (France)
| | - David J. Aitken
- CP3A Organic Synthesis Group, ICMMO, UMR 8182, Université Paris Sud, Bât. 420, 15 rue Georges Clemenceau, 91405 Orsay cedex (France)
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Chakraborti D, Rahman MM, Mukherjee A, Alauddin M, Hassan M, Dutta RN, Pati S, Mukherjee SC, Roy S, Quamruzzman Q, Rahman M, Morshed S, Islam T, Sorif S, Selim M, Islam MR, Hossain MM. Groundwater arsenic contamination in Bangladesh-21 Years of research. J Trace Elem Med Biol 2015; 31:237-48. [PMID: 25660323 DOI: 10.1016/j.jtemb.2015.01.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 01/02/2015] [Accepted: 01/05/2015] [Indexed: 10/24/2022]
Abstract
Department of Public Health Engineering (DPHE), Bangladesh first identified their groundwater arsenic contamination in 1993. But before the international arsenic conference in Dhaka in February 1998, the problem was not widely accepted. Even in the international arsenic conference in West-Bengal, India in February, 1995, representatives of international agencies in Bangladesh and Bangladesh government attended the conference but they denied the groundwater arsenic contamination in Bangladesh. School of Environmental Studies (SOES), Jadavpur University, Kolkata, India first identified arsenic patient in Bangladesh in 1992 and informed WHO, UNICEF of Bangladesh and Govt. of Bangladesh from April 1994 to August 1995. British Geological Survey (BGS) dug hand tube-wells in Bangladesh in 1980s and early 1990s but they did not test the water for arsenic. Again BGS came back to Bangladesh in 1992 to assess the quality of the water of the tube-wells they installed but they still did not test for arsenic when groundwater arsenic contamination and its health effects in West Bengal in Bengal delta was already published in WHO Bulletin in 1988. From December 1996, SOES in collaboration with Dhaka Community Hospital (DCH), Bangladesh started analyzing hand tube-wells for arsenic from all 64 districts in four geomorphologic regions of Bangladesh. So far over 54,000 tube-well water samples had been analyzed by flow injection hydride generation atomic absorption spectrometry (FI-HG-AAS). From SOES water analysis data at present we could assess status of arsenic groundwater contamination in four geo-morphological regions of Bangladesh and location of possible arsenic safe groundwater. SOES and DCH also made some preliminary work with their medical team to identify patients suffering from arsenic related diseases. SOES further analyzed few thousands biological samples (hair, nail, urine and skin scales) and foodstuffs for arsenic to know arsenic body burden and people sub-clinically affected. SOES and DCH made a few follow-up studies in some districts to know their overall situations after 9 to 18 years of their first exposure. The overall conclusion from these follow-up studies is (a) villagers are now more aware about the danger of drinking arsenic contaminated water (b) villagers are currently drinking less arsenic contaminated water (c) many villagers in affected village died of cancer (d) arsenic contaminated water is in use for agricultural irrigation and arsenic exposure from food chain could be future danger. Since at present more information is coming about health effects from low arsenic exposure, Bangladesh Government should immediately focus on their huge surface water management and reduce their permissible limit of arsenic in drinking water.
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Affiliation(s)
| | - Mohammad Mahmudur Rahman
- School of Environmental Studies, Jadavpur University, Kolkata 700 032, India; Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes Campus, Mawson Lakes, SA, 5095, Australia
| | - Amitava Mukherjee
- School of Environmental Studies, Jadavpur University, Kolkata 700 032, India; Centre for Nanobiotechnology, VIT University, Vellore 632014, Tamil Nadu, India
| | - Mohammad Alauddin
- Department of Chemistry, Wagner College, Staten Island, NY 10301, USA
| | - Manzurul Hassan
- Department of Geography and Environment, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
| | - Rathindra Nath Dutta
- Department of Dermatology, Institute of Post Graduate Medical Education and Research, SSKM Hospital, Kolkata, India
| | - Shymapada Pati
- Department of Obstetrics and Gynaecology, Kolkata National Medical College, Kolkata, India
| | | | - Shibtosh Roy
- Dhaka Community Hospital, Dhaka 1217, Bangladesh
| | | | | | | | | | | | - Md Selim
- Dhaka Community Hospital, Dhaka 1217, Bangladesh
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Alauddin M, Biswal HS, Gloaguen E, Mons M. Intra-residue interactions in proteins: interplay between serine or cysteine side chains and backbone conformations, revealed by laser spectroscopy of isolated model peptides. Phys Chem Chem Phys 2014; 17:2169-78. [PMID: 25482851 DOI: 10.1039/c4cp04449e] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Intra-residue interactions play an important role in proteins by influencing local folding of the backbone. Taking advantage of the capability of gas phase experiments to provide relevant information on the intrinsic H-bonding pattern of isolated peptide chains, the intra-residue interactions of serine and cysteine residues, i.e., OH/SH···OC(i) C6 and NH(i···)O/S C5 interactions in Ser/Cys residues, are probed by laser spectroscopy of isolated peptides. The strength of these local side chain-main chain interactions, elegantly documented from their IR spectral features for well-defined conformations of the main chain, demonstrates that a subtle competition exists between the two types of intra-residue bond: the C6 H-bond is the major interaction with Ser, in contrast to Cys where C5 interaction takes over. The restricted number of conformers observed in the gas phase experiment with Ser compared to Cys (where both extended and folded forms are observed) also suggests a significant mediation role of these intra-residue interactions on the competition between the several main chain folding patterns.
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Affiliation(s)
- Mohammad Alauddin
- CEA, IRAMIS, Laboratoire Interactions, Dynamique et Lasers, CEA Saclay, Bât 522, 91191 Gif-sur-Yvette, France.
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Islam MR, Attia J, Alauddin M, McEvoy M, McElduff P, Slater C, Islam MM, Akhter A, d’Este C, Peel R, Akter S, Smith W, Begg S, Milton AH. Availability of arsenic in human milk in women and its correlation with arsenic in urine of breastfed children living in arsenic contaminated areas in Bangladesh. Environ Health 2014; 13:101. [PMID: 25471535 PMCID: PMC4265415 DOI: 10.1186/1476-069x-13-101] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [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: 06/20/2014] [Accepted: 11/26/2014] [Indexed: 05/29/2023]
Abstract
BACKGROUND Early life exposure to inorganic arsenic may be related to adverse health effects in later life. However, there are few data on postnatal arsenic exposure via human milk. In this study, we aimed to determine arsenic levels in human milk and the correlation between arsenic in human milk and arsenic in mothers and infants urine. METHODS Between March 2011 and March 2012, this prospective study identified a total of 120 new mother-baby pairs from Kashiani (subdistrict), Bangladesh. Of these, 30 mothers were randomly selected for human milk samples at 1, 6 and 9 months post-natally; the same mother baby pairs were selected for urine sampling at 1 and 6 months. Twelve urine samples from these 30 mother baby pairs were randomly selected for arsenic speciation. RESULTS Arsenic concentration in human milk was low and non-normally distributed. The median arsenic concentration in human milk at all three time points remained at 0.5 μg/L. In the mixed model estimates, arsenic concentration in human milk was non-significantly reduced by -0.035 μg/L (95% CI: -0.09 to 0.02) between 1 and 6 months and between 6 and 9 months. With the progression of time, arsenic concentration in infant's urine increased non-significantly by 0.13 μg/L (95% CI: -1.27 to 1.53). Arsenic in human milk at 1 and 6 months was not correlated with arsenic in the infant's urine at the same time points (r = -0.13 at 1 month and r = -0.09 at 6 month). Arsenite (AsIII), arsenate (AsV), monomethyl arsonic acid (MMA), dimethyl arsinic acid (DMA) and arsenobetaine (AsB) were the constituents of total urinary arsenic; DMA was the predominant arsenic metabolite in infant urine. CONCLUSIONS We observed a low arsenic concentration in human milk. The concentration was lower than the World Health Organization's maximum permissible limit (WHO Permissible Limit 15 μg/kg-bw/week). Our findings support the safety of breastfeeding even in arsenic contaminated areas.
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Affiliation(s)
- Md Rafiqul Islam
- />Centre for Clinical Epidemiology & Biostatistics (CCEB), The School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Lot 1 Kookaburra Circuit, New Lambton Heights, NSW 2305 Australia
| | - John Attia
- />Centre for Clinical Epidemiology & Biostatistics (CCEB), The School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Lot 1 Kookaburra Circuit, New Lambton Heights, NSW 2305 Australia
| | | | - Mark McEvoy
- />Centre for Clinical Epidemiology & Biostatistics (CCEB), The School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Lot 1 Kookaburra Circuit, New Lambton Heights, NSW 2305 Australia
| | - Patrick McElduff
- />Centre for Clinical Epidemiology & Biostatistics (CCEB), The School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Lot 1 Kookaburra Circuit, New Lambton Heights, NSW 2305 Australia
| | - Christine Slater
- />Division of Human Health, International Atomic Energy Agency, Vienna, Austria
| | - Md Monirul Islam
- />Centre for Nutrition and Food Security, International Centre for Diarrhoeal Diseases Research, Bangladesh, Mohakhali, Dhaka, 1212 Bangladesh
| | - Ayesha Akhter
- />Department of Obstetrics and Gynaecology, John Hunter Hospital, Hunter New England Area Health Services, 2 Lookout Road, New Lambton Heights, NSW 2305 Australia
| | - Catherine d’Este
- />Centre for Clinical Epidemiology & Biostatistics (CCEB), The School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Lot 1 Kookaburra Circuit, New Lambton Heights, NSW 2305 Australia
| | - Roseanne Peel
- />Centre for Clinical Epidemiology & Biostatistics (CCEB), The School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Lot 1 Kookaburra Circuit, New Lambton Heights, NSW 2305 Australia
| | - Shahnaz Akter
- />Department of Paediatrics, Institute of Child and Mother Health, Matuail, Dhaka, Bangladesh
| | - Wayne Smith
- />Centre for Clinical Epidemiology & Biostatistics (CCEB), The School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Lot 1 Kookaburra Circuit, New Lambton Heights, NSW 2305 Australia
- />Department of Environmental Health, NSW Health, Sydney, NSW Australia
| | - Stephen Begg
- />School of Rural Health, LaTrobe University, Bendigo, VIC Australia
| | - Abul Hasnat Milton
- />Centre for Clinical Epidemiology & Biostatistics (CCEB), The School of Medicine and Public Health, Faculty of Health, The University of Newcastle, Lot 1 Kookaburra Circuit, New Lambton Heights, NSW 2305 Australia
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Gloaguen E, Brenner V, Alauddin M, Tardivel B, Mons M, Zehnacker-Rentien A, Declerck V, Aitken DJ. Direct Spectroscopic Evidence of Hyperconjugation Unveils the Conformational Landscape of Hydrazides. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Gloaguen E, Brenner V, Alauddin M, Tardivel B, Mons M, Zehnacker-Rentien A, Declerck V, Aitken DJ. Direct Spectroscopic Evidence of Hyperconjugation Unveils the Conformational Landscape of Hydrazides. Angew Chem Int Ed Engl 2014; 53:13756-9. [DOI: 10.1002/anie.201407801] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Indexed: 11/10/2022]
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Kabir MG, Hossain M, Faruque MO, Alauddin M, Ali L. Association of serum free IGF-1 and IGFBP-1 with insulin sensitivity and insulin secretory defects in Bangladeshi type 2 diabetes mellitus. J Taibah Univ Med Sci 2014. [DOI: 10.1016/j.jtumed.2013.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Loquais Y, Gloaguen E, Alauddin M, Brenner V, Tardivel B, Mons M. On the near UV photophysics of a phenylalanine residue: conformation-dependent ππ* state deactivation revealed by laser spectroscopy of isolated neutral dipeptides. Phys Chem Chem Phys 2014; 16:22192-200. [DOI: 10.1039/c4cp03401e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The primary step of the near UV photophysics is investigated in pump–probe R2PI ns experiments carried out on specific conformers of model peptide chains.
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Affiliation(s)
- Yohan Loquais
- CEA
- IRAMIS
- Laboratoire Interactions
- Dynamique et Lasers
- 91191 Gif-sur-Yvette, France
| | - Eric Gloaguen
- CNRS
- INP
- Laboratoire Francis Perrin
- URA 2453
- 91191 Gif-sur-Yvette, France
| | - Mohammad Alauddin
- CEA
- IRAMIS
- Laboratoire Interactions
- Dynamique et Lasers
- 91191 Gif-sur-Yvette, France
| | - Valérie Brenner
- CEA
- IRAMIS
- Laboratoire Interactions
- Dynamique et Lasers
- 91191 Gif-sur-Yvette, France
| | - Benjamin Tardivel
- CEA
- IRAMIS
- Laboratoire Interactions
- Dynamique et Lasers
- 91191 Gif-sur-Yvette, France
| | - Michel Mons
- CEA
- IRAMIS
- Laboratoire Interactions
- Dynamique et Lasers
- 91191 Gif-sur-Yvette, France
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Islam SS, Mokhtari RB, El Hout Y, Azadi MA, Alauddin M, Yeger H, Farhat WA. TGF-β1 induces EMT reprogramming of porcine bladder urothelial cells into collagen producing fibroblasts-like cells in a Smad2/Smad3-dependent manner. J Cell Commun Signal 2013; 8:39-58. [PMID: 24338442 DOI: 10.1007/s12079-013-0216-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 11/22/2013] [Indexed: 10/25/2022] Open
Abstract
Activation of fibroblasts and their differentiation into myofibroblasts, excessive collagen production and fibrosis occurs in a number of bladder diseases. Similarly, conversion of epithelial cells into mesenchymal cells (EMT) has been shown to increase fibroblasts like cells. TGF-β1 can induce the EMT and the role of TGF-β1-induced EMT during bladder injury leading to fibrosis and possible organ failure is gaining increasing interest. Here we show that EMT and fibrosis in porcine bladder urothelial (UC) cells are Smad dependent. Fresh normal porcine bladder urothelial cells were grown in culture with or without TGF-β1 and EMT markers were assessed. TGF-β1 treatment induced changes in cellular morphology as depicted by a significant decrease in the expression of E-cadherin and corresponding increase in N-cadherin and α-SMA. We knocked down Smad2 and Smad3 by Smad specific siRNA. Downregulation of E-cadherin expression by TGF-β1 was Smad3-dependent, whereas N-cadherin and α-SMA were dependent on both Smad2 and Smad3. Connective tissue growth factor (CTGF/CCN2), matrix metalloproteinase-2 and -9 (MMP-2, MMP-9) has been shown to play important roles in the pathogenesis of fibrosis. Induction of these genes by TGF-β1 was found to be time dependent. Upregulation of CTGF/CCN2 by TGF-β1 was Smad3 dependent; whereas MMP-2 was Smad2 dependent. Smad2 and Smad3 both participated in MMP-9 expression. TGF-β1 reprogrammed mesenchymal fibroblast like cells robustly expressed collagen I and III and these was inhibited by SB-431542, a TGF-β receptor inhibitor. Our results indicate that EMT of porcine bladder UC cells is TGF-β1 dependent and is mediated through Smad2 and Smad3. TGF-β1 may be an important factor in the development of bladder fibrosis via an EMT mechanism. This identifies a potential amenable therapeutic target.
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Affiliation(s)
- Syed S Islam
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children Research Institute, Toronto, ON, Canada,
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Rasul SB, Munir AKM, Hossain ZA, Khan AH, Alauddin M, Hussam A. Electrochemical measurement and speciation of inorganic arsenic in groundwater of Bangladesh. Talanta 2013; 58:33-43. [PMID: 18968732 DOI: 10.1016/s0039-9140(02)00254-0] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2001] [Revised: 03/05/2002] [Indexed: 11/25/2022]
Abstract
The presence of arsenic in groundwater above the maximum permissible limit of 50 mug l(-1) has threatened the health of more than 50 million people in Bangladesh and neighboring India. We report here the development of an inexpensive anodic stripping voltammetric (ASV) technique for routine measurement and speciation of arsenic in groundwater. The measurements are validated by more expensive atomic absorption, atomic emission and other techniques. To understand the present situation in Bangladesh, we measured As(III) in 960 water samples collected from 18 districts. A random distribution of 238 samples was used to measure both As(III) and As(V). The results from the present study indicate that most toxic form of inorganic arsenic, As(III), has the broad range of 30-98%. It shows 60% of the samples have 10 mug l(-1) and 44% of the samples have 50 mug l(-1) or more As(III). The fractional distribution pattern shows significant skew towards high percent occurrence which may indicate a progressive reduction process with a single source or a single mechanism for the formation of As(III). For direct consumption, this is possibly one of the most toxic groundwater known today. Speciation distribution at groundwater pH value shows H(3)AsO(3) is the predominant species including H(2)AsO(4)(-) and H(2)AsO(4)(2-) whose distribution is significantly pH dependent. This is also supported by E(h)-pH measurements. The depth distribution for Kushtia shows most of the As(III) is located within 100-200 ft deep aquifers. Similar fractional distribution of As(III) is found in deeper aquifers and may indicate contamination by leakage from upper aquifer. This study clearly demonstrates the aquifer environment is reductive and conducive to the formation of As(III) species.
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Affiliation(s)
- S B Rasul
- Sono Diagnostic Center Environment Initiative(SDCEI), Courtpara, Kushtia, Bangladesh
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29
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Kabir G, Hossain M, Faruque MO, Hassan N, Hassan Z, Nahar Q, Shefin SM, Alauddin M, Ali L. Association of serum free IGF-1 and IGFBP-1 with insulin sensitivity in impaired glucose tolerance (IGT). ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.ijdm.2010.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hossain M, Kabir G, Hasan N, Faruque O, Sikdar D, Alauddin M, Ali L. Metabolic syndrome of prediabetic and diabetic subjects in a Bangladeshi population. Diabetes Metab Syndr 2009. [DOI: 10.1016/j.dsx.2009.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Mowla A, Alauddin M, Rahman MA, Ahmed K. Antihyperglycemic effect of Trigonella foenum-graecum (fenugreek) seed extract in alloxan-induced diabetic rats and its use in diabetes mellitus: a brief qualitative phytochemical and acute toxicity test on the extract. Afr J Tradit Complement Altern Med 2009; 6:255-61. [PMID: 20448850 DOI: 10.4314/ajtcam.v6i3.57165] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The effects of ethanol extract of Trigonella foenum-graecum (Fenugreek) seeds on the blood glucose levels in alloxan-induced diabetic rats at different doses (2 g/kg, 1 g/kg, 0.5 g/kg and 0.1 g/kg) were studied. The hypoglycemic effect of extract was compared with that of the standard antidiabetic drug (glimepiride, 4 mg/kg) single dose. The extract showed significant activity against the diabetic state induced by alloxan but the intensity of hypoglycemic effect varied from dose to dose. The most effective dose recognized was 1 g/kg but that is still lower than the standard antidiabetic drug. No acute toxicity was observed for ethanol extract of T. foenum-graecum seed when it was administered orally at high dose level (3 g/kg body weight), which is higher than effective antihyperglycemic dose, and closely observed for 24 hrs for any mortality and next 10 days for any delayed toxic effects on gross behavioral activities. Phytochemical group tests were also accomplished and presence of alkaloids, steroids and carbohydrates were recognized in the extract.
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Affiliation(s)
- Asmena Mowla
- Department of Biochemistry and Molecular Biology, University of Chittagong, Chittagong-4331, Bangladesh
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Pramanik KK, Taous A, Lodh D, Rahim M, Alauddin M. Hearing status of elderly people: study in a tertiary level hospital. Mymensingh Med J 2009; 18:S98-S102. [PMID: 19377439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A study was carried out from April 2003 to March 2004 at the Department of Otolaryngology and Head-Neck Surgery, BSMMU, with the aim to evaluate the prevalence of hearing loss and to find out the pattern and extent of hearing loss among the elderly people. The study included 100 people aged over 50 years. Out of 100 cases 59% were found with normal hearing and 41% had variable degree of hearing impairment. The highest prevalence of hearing impairment was found 100% in 9th decade with gradually decreasing tendency and lowest was 29.50% in 6th decade. Most of the cases were found to be bilateral (65.85%). Majority (65.85%) of the hearing impaired people had sensorineural type of loss with a significant number (21.95%) of conductive loss. Irrespective of type of impairment. Most of the people (73%) had no complaint of ear problem during presentation. Only 27% had some sorts of otological symptoms like hearing loss, tinnitus and vertigo and among them about 96.29% complained of hearing loss. About 44.44% of the hearing impaired person of 6th decade, showed mild hearing loss. In the 7th decade maximum (50%) had moderate to severe hearing loss. About 31% of persons of 8th decade and 50% of 9th decade had severe degree of hearing loss.
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Hadi HIA, Alam MS, Islam MA, Ekramuddaula FM, Sattar MA, Tarafder KH, Alauddin M. Intranasal meningoencephalocoele-a rare childhood condition. Mymensingh Med J 2009; 18:S129-S131. [PMID: 19377422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Congenital or acquired intranasal meningocoele or meningoencephalocoele is a rare condition ever reported in world literature. We report a case of intranasal meningoencephalocoele in which a 10 month old male child presented with left sided progressive nasal obstruction, nasal mass and reluctant to feed. On examination slight broadening of the bridge of the nose with obliteration of left nasomaxillary fold, mucoid discharge and a pinkish, polypoidal, non tender, non pulsatile mass with prominent blood vessels on the surface occupying almost 3/4(th) of the nasal cavity was observed. On probing it appeared to be attached to roof of left nasal cavity. Computed tomography revealed a hypodense area in the nasal cavity but there was no bony defect in the skull base. Peroperatively on aspiration of nasal cystic mass revealed free flow of clear fluid which was biochemically CSF. A one stage, Lynch Howarth approach, correctional procedure was performed. We present here a discussion of findings and surgical treatment. Early diagnosis and referral are of paramount importance, because failure to identify this leads to fatal outcome if surgery performed.
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Affiliation(s)
- Hossain Imam Al Hadi
- Department of Otolaryngology-Head & Neck Surgery, Block-C, 6th Floor, Room No. -733, Bangabandhu Sheikh Mujib Medical University (BSMMU), Shahbag, Dhaka, Bangladesh
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Tarafder KH, Rahman SH, Hossain MA, Alauddin M, Islam MA, Hadi IA. Outcome of management of differentiated thyroid carcinoma. Mymensingh Med J 2007; 16:S46-S52. [PMID: 17917631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A prospective study was done on 93 cases of differentiated thyroid carcinoma to find out the outcome of management according to the protocol followed in the Department of ENT-Head and Neck Surgery of Bangabandhu Sheikh Mujib Medical University Hospital. Here Papillary carcinoma is more common (76.35%) than follicular carcinoma. Papillary carcinoma affected in the younger patients more commonly than the follicular carcinoma with a mean age of 34.37years (SD=12.81) for papillary carcinoma and 44.93 years (SD=16.01) for follicular carcinoma; but age as a risk factor showed no significant difference between two histological types (p>0.05). Female was the predominant sex with a ratio of 3.04:1. In this series majority of patients were categorized as high risk group (75.27%). There is strong association between histological type & risk group (P<0.05). High risk group is more common in follicular carcinoma (95.45% Vs 69.01%). There was a significant differences between the two histological types for extrathyroidal extention and distant metastasis as risk factors (p<0.01 and p<0.001); but tumour size and lymphatic metastasis showed no significant difference (p>0.05). All low risk patients were treated by hemithyriodectomy followed by life long thyroxine. All high risk cases were treated with total thyroidectomy with (35.71%) or without (62.86%) different types of neck dissection (according to the degree of lymph node involvement) followed by radioiodine ablasion and lifelong thyroxine therapy routinely. Overall rate of complication of thyroid surgery was 23.08%. The commoner complications were vocal cord palsy (5.5%), hypoparathyroidism (5.5%) and haemorrhage (4.4%). Less common complications were laryngeal oedema (2.2%), wound infection (2.2%), tracheal injury (1.1%) and death (2.2%). Many cases lost to follow up. Sixty seven cases (73.64%) responded well for follow-up. Mean duration of follow up was 3.40 years (SD=1.41). There was recurrence in thyroid remnant in 9.09% of hemithyroidectomy cases and were treated by completion thyroidectomy followed by radioiodine ablasion. Regional lymphatic metastasis was seen in six cases and was treated by different types of neck dissection. Recurrence at distal site was seen in 4 cases (18.18% of follicular carcinoma). These were treated by radioiodine ablation; two of them died during the period of follow-up.
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Affiliation(s)
- K H Tarafder
- Department of Otolaryngology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Shahabag, Dhaka, Bangladesh
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36
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Biswas A, Bal R, Alauddin M, Saha S, Kundu MK, Mondal P. Genital fistula--our experience. J Indian Med Assoc 2007; 105:123-6. [PMID: 17824462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Genital fistulas cause immense physical and psychosocial problem in women's life. The present study was conducted to note the varieties of genital fistula as well as their causative factors and the results of the operative corrections. Altogether 42 patients with different varieties of genital fistula were enrolled in the study. The causative factors of the genital fistulas, specially, that of vesicovaginal fistulas were thoroughly enquired. After confirming the diagnosis, the operative corrections were undertaken. Among the varieties of genital fistula, 76.19% were vesicovaginal fistula, 11.90% were rectovaginal fistula and 4.76%, 4.76% and 2.38% cases of ureterovaginal, urethrovaginal and vesicocervical fistulas respectively. The primipara women were the major sufferers of genital fistulas due to obstetric grounds. Regarding aetiologies of vesicovaginal fistulas, 71.87% patients had obstetric reasons, after prolonged labour, instrumental delivery and after caesarean section due to obstructed labour. Abdominal hysterectomy (44.44%) topped the list of the gynaecological causes of vesicovaginal fistulas. The cases of ureterovaginal fistulas were after abdominal hysterectomy. One case of urethrovaginal fistula was due to some chemical application for correction of genital prolapses. The rectovaginal fistulas were mostly due to obstetric reasons. The success rate after the first attempt of repair of vesicovaginal fistula was 82.75% and overall failure was 10.34%. The other varieties of fistulas were repaired with 100% success rate. The incidence of genital fistulas can be reduced by vigilant obstetric care and meticulous surgery.
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Affiliation(s)
- Arati Biswas
- Department of Obstetrics and Gynaecology, Calcutta National Medical College, Kolkata
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37
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Singh H, Najjar A, Olivares S, Nishii R, Mukhopadhyay U, Alauddin M, Jensen M, Forman S, Shpall E, Champlin R, Gelovani J, Cooper L. 77: Non-invasive PET imaging of T cells derived from umbilical cord blood. Biol Blood Marrow Transplant 2007. [DOI: 10.1016/j.bbmt.2006.12.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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Ahmed MF, Ahuja S, Alauddin M, Hug SJ, Lloyd JR, Pfaff A, Pichler T, Saltikov C, Stute M, van Geen A. Epidemiology. Ensuring safe drinking water in Bangladesh. Science 2006; 314:1687-8. [PMID: 17170279 DOI: 10.1126/science.1133146] [Citation(s) in RCA: 206] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- M F Ahmed
- Bangladesh University of Engineering and Technology, Dhaka -1000, Bangladesh
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Siddiquee BH, Alauddin M, Choudhury AA, Akhtar N. Head and neck squamous cell carcinoma (HNSCC) 5 year study at BSMMU. Bangladesh Med Res Counc Bull 2006; 32:43-8. [PMID: 17663359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Head and Neck Squamous Cell Carcinoma (HNSCC) are generally similar in their clinical features, epidemiology and etiology although their natural and clinical history and treatment differ. Despite lot of improvement in diagnostic and management technique, there is little improvement in survival rate over the last few decades. This study was carried-out in a multidisciplinary tertiary level hospital (BSMMU), with a country-wide catchment area to see the burden of HNSCC existing in our country and their clinical pattern. The overall incidence rate of HNSCC in this study was (0.15%) i.e. 150 person in 1,00,000 population. Male incidence (0.19%) was higher than female (0.12%). This study revealed that carcinoma of the larynx (25.22%) and pyriform fossae (20.57%) were the main culprit, whereas buccal carcinoma was the main component (37.70%) in the female series. Highest incidence was found in the 6th decade in both sexes. As the treatment of HNSCC may be time consuming, requires multidisciplinary approach, demands lot of clinical, social and financial consideration, therefore, the best treatment can be offered through a combined board consisting of Surgical, Radiation, Medical oncologists, Histopathologist and Speech therapist as required.
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Affiliation(s)
- B H Siddiquee
- Deptt. of Otolaryngology-Head & Neck Surgery, BSMMU, Dhaka
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Alauddin M, Joarder AH. Management of thyroid carcinoma-an experience in Bangladesh. Indian J Otolaryngol Head Neck Surg 2004; 56:201-5. [PMID: 23120074 PMCID: PMC3451888 DOI: 10.1007/bf02974350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
All patients (n=154) of thyroid malignancy admitted in the Otoluryngology Department of Bangabandhu Sheikh Mujib Medical University (former IPGMR) between 1986 and 2000 were retrospectively analyzed to find out the extent and result of surgery used for thyroid carcinoma. The other objectives were to find out the incidence of differentiated thyroid carcinoma among the thyroid malignancy and also to find out the age, sex and clinical presentation of papillary and follicular carcinoma. Among all the thyroid malignancy (n-154), Differentiated Thyroid Carcinoma (DTC) was seen in 130 (84.41%) cases, where as papillary carcinoma occurred in 98(63.64%), and follicular carcinoma in 32(20.77%)cases. On the basis of risk factors, the DTC were designated as low and high risk. The year-wise incidence of DTC revealed increasing trend from 1986 (3 cases) to 2000 (23 cases).Among the 98 papillary thyroid carcinoma highest number of cases (35.71%) were seen in 31-40 year age group. The male to female ratio was 1: 1.64. In follicular carcinoma, highest number (35.25%) of cases were also seen in 31-40 year age group. The male to female ratio was 1:1.66. The commonest presentation in papillary carcinoma was thyroid swelling (96.93%). The other presentations were occult thyroid (3.06%), Cervical lymph node metastasis (38.77%) and distant metastasis (2.04%). In Follicular carcinoma, the presentations were thyroid swelling (100%), Cervical lymph node metastasis (6.25%) and Distant metastasis (21.87%).In this series, low risk DTC were treated by Lobectomy & Isthmusectomy plus Thyroxin. In low risk group the rate of recurrence was 6.89% and the mortality was nil in five years follow-up. Except two inoperable cases, all high risk patients were managed by Total thyroidectomy (with or without neck dissection, plus removal of metastatic lesion when required) with Radioiodine ablation plus Thyroxin. . The rate of recurrence was 7.81% and mortality was 1.56% in high risk group in similar period of time.Vocal cord palsy were noted in 5 (3.84%) unilateral, and inane (0.76%) bilateral cases. Hypoparathyroidism was found in 4.61%.
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Affiliation(s)
- M Alauddin
- Department of Otolaryngology & Head-Neck Surgery, Bangabandhu Sheikh Mujib Medical University, Shahbag, Dhaka, Bangladesh
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Rabbani GH, Saha SK, Akhtar M, Marni F, Mitra AK, Ahmed S, Alauddin M, Bhattacharjee M, Sultana S, Chowdhury AKA. Antioxidants in detoxification of arsenic-induced oxidative injury in rabbits: preliminary results. J Environ Sci Health A Tox Hazard Subst Environ Eng 2003; 38:273-287. [PMID: 12635832 DOI: 10.1081/ese-120016894] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
To assess the oxidative injuries caused by arsenic toxicity in rabbits and evaluate the detoxifying effects of exogenous antioxidants, we administered arsenic trioxide (3-5 mg/kg/day) in rabbits through a feeding tube for seven days. These rabbits were then treated with a recipe of vitamins, zinc, selenium (VZS) or a plant polyphenol or a placebo for the next seven days. Blood samples were collected from ear vein for spectrophotometric assay of reduced glutathione (GSH), thiobarbituric acid reactive substances (TBARS), and nitrite/nitrate (NOx; index of nitric oxide formation) before arsenic administration, seven days after arsenic administration, and seven days after antioxidant treatment. The total arsenic concentrations in hair and spot urine samples of rabbits before arsenic administration were 0.6 +/- 0.21 microg/g and 34.0 +/- 5.9 microg/L, respectively. Administration of arsenic trioxide significantly increased arsenic concentrations in hair and in urine to 2.8 +/- 0.40 microg/g (p<0.001) and 7372 +/- 1392.0 microg/L (p<0.001), respectively. Arsenic administration to rabbits significantly reduced GSH concentration (post-arsenic, 17.5 +/- 0.81 mg/dL vs. pre-arsenic, 32.0 +/- 0.76 mg/dL, p<0.001), increased TBARS concentration (post-arsenic, 8 +/- 1.1 microM vs. pre-arsenic, 5 +/- 0.7 microM, p<0.05), and NOx concentration (post-arsenic, 465 +/- 38.5 microM vs. pre-arsenic, 320 +/- 24.7 microM, p<0.001) as compared to the pre-arsenic levels. There was a negative correlation between TBARS and GSH concentrations (r=-0.464, p<0.01) and between NOx and GSH concentrations (r=-0.381, p<0.05) of intoxicated rabbits. The recovery of the depleted GSH was significantly greater in the polyphenols (77.0 +/- 12.0%) or VZS (67.0 +/- 17.0%) treatment groups compared with the placebo group (36.0 +/- 7.0%). The decrease in NOx level of arsenic-treated rabbits was significantly greater in polyphenols treatment group than the placebo group (60.0 +/- 9.0% vs. 17.0 +/- 6.0%, p<0.001). These results indicate that arsenic induces toxicity in rabbits associated with an increase in lipid peroxidation. Arsenic toxicity increases nitric oxide production in the body. Exogenous antioxidants such as polyphenols and recipe of vitamins, zinc, and selenium are useful for arsenic detoxification.
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Affiliation(s)
- Golam Hassan Rabbani
- Physiology Laboratory, Clinical Sciences Division, ICDDR,B: Centre for Health and Population Research, Dhaka, Bangladesh.
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Chakraborti D, Hussam A, Alauddin M. Arsenic: environmental and health aspects with special reference to groundwater in South Asia. Foreword. J Environ Sci Health A Tox Hazard Subst Environ Eng 2003; 38:xi-xv. [PMID: 12635816 DOI: 10.1081/ese-120016509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
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Alauddin M, Alauddin ST, Bhattacharjee M, Sultana S, Chowdhury D, Bibi H, Rabbani GH. Speciation of arsenic metabolite intermediates in human urine by ion-exchange chromatography and flow injection hydride generation atomic absorption spectrometry. J Environ Sci Health A Tox Hazard Subst Environ Eng 2003; 38:115-128. [PMID: 12635822 DOI: 10.1081/ese-120016884] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Biomethylation is considered as the principal metabolic and detoxification pathway for inorganic arsenic in human. The end products of methylation are less toxic and more readily excreted through urine. Therefore, speciation of metabolites in urine is essential to a better understanding of arsenic metabolism, health effects and detoxification ability of individuals exposed to arsenic through drinking water, food and environmental materials. Speciation of inorganic and methylated arsenic in urine is an analytical challenge and often requires expensive instrumentation. We have applied a relatively inexpensive technique for the separation and analysis of various arsenic species, such as, arsenite, arsenate, monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA) in human urine. The technique is based on ion exchange chromatographic separation followed by flow injection hydride generation atomic absorption spectroscopy (FI-HG-AAS). The detection limit varies from 1.0 to 2.0 microg/L for various species. The technique has been successfully applied to speciation of arsenic metabolite intermediates in urine samples collected from patients in Hajiganj, a serious arsenic affected area in Bangladesh. Arsenite (AsIII) was found to be the major component in the urine from these patients. Our findings from patients in Hajiganj, Bangladesh are presented in this paper. The technique permits us to carry out arsenic speciation in urine, essential for toxicological studies and possible nutritional intervention in combating arsenic poisoning in Bangladesh.
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Hussam A, Habibuddowla M, Alauddin M, Hossain ZA, Munir AKM, Khan AH. Chemical fate of arsenic and other metals in groundwater of Bangladesh: experimental measurement and chemical equilibrium model. J Environ Sci Health A Tox Hazard Subst Environ Eng 2003; 38:71-86. [PMID: 12635820 DOI: 10.1081/ese-120016882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The presence of toxic level of inorganic arsenic in groundwater used for drinking in Bangladesh and neighboring India is unfolding as one of the worst natural disaster in the region. The purpose of this work is to ascertain the chemical fate of arsenic and other metals in groundwater of Bangladesh. A combination of techniques was used to measure 24 metals, 6 anions, Eh, pH, dissolved oxygen, conductivity, and temperature to understand the distribution of components which were then used in computational chemical equilibrium model, MINEQL+, for detailed speciation. It was found that the fate of arsenic and its speciation were inextricably linked to the formation of hydrous ferric oxide (HFO) and its kinetic. The HFO induced natural attenuation removes 50-75% of total arsenic in first 24 h through a first order kinetics. Adsorption on HFO is the predominant mode of removal of arsenic, iron, manganese, and most trace metals. The equilibrium model points to the presence of excess active sites for the removal of arsenic. MINEQL+ shows that significantly higher concentration of HFO forming iron is required to remove arsenic below maximum contamination level (MCL) of 50 microg/L than predicted by stoichiometry. The practical implication of this work is the prediction of water quality based on models.
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Affiliation(s)
- A Hussam
- Chemistry Department, George Mason University, Fairfax, Virginia 22030, USA.
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Alauddin M. Rural development and family planning behavior in Bangladesh Villages. Bangladesh Dev Stud 2002:25-58. [PMID: 12336642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Hussam A, Alauddin M, Khan AH, Chowdhury D, Bibi H, Bhattacharjee M, Sultana S. Solid phase microextraction: measurement of volatile organic compounds (VOCs) in Dhaka City air pollution. J Environ Sci Health A Tox Hazard Subst Environ Eng 2002; 37:1223-1239. [PMID: 15328688 DOI: 10.1081/ese-120005982] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A solid phase microextraction (SPME) technique was applied for the sampling of volatile organic compounds (VOCs) in ambient air polluted by two stroke autorickshaw engines and automobile exhausts in Dhaka city, Bangladesh. Analysis was carried out by capillary gas chromatography (GC) and GC-mass spectrometry (MS). The methodology was tested by insitu sampling of an aromatic hydrocarbon mixture gas standard with a precision of +/-5% and an average accuracy of 1-20%. The accuracy for total VOCs concentration measurement was about 7%. VOC's in ambient air were collected by exposing the SPME fiber at four locations in Dhaka city. The chromatograms showed signature similar to that of unburned gasoline (petrol) and weathered diesel containing more than 200 organic compounds; some of these compounds were positively identified. These are normal hydrocarbons pentane (n-C5H2) through nonacosane (n-C29H60), aromatic hydrocarbons: benzene, toluene, ethylbenzene, n-propylbenzene, n-butylbenzene, 1,3,5-trimethylbenzene, xylenes, and 1-isocyanato-3-methoxybenzene. Two samples collected near an autorickshaw station contained 783000 and 1479000 microg/m3 of VOCs. In particular, the concentration of toluene was 50-100 times higher than the threshold limiting value of 2000 microg/m3. Two other samples collected on street median showed 135000 microg/m3 and 180000 microg/m3 of total VOCs. The method detection limit of the technique for most semi-volatile organic compounds was 1 microg/m3.
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Affiliation(s)
- A Hussam
- Chemistry Department, MSN 3E2, George Mason University, Fairfax, VA 22030, USA.
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Alauddin M, Verrall RE. Apparent molal volume studies of 2,6-di-tert-butyl-4-methylphenol, 2-tert-butyl-4-methoxyphenol, and 2,6-di-tert-butyl-4-(hydroxymethyl)phenol in aqueous micelle solutions of cetyltrimethylammonium bromide as a function of micelle concentration and temperature. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100399a039] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Alauddin M, Rao NP, Verrall RE. Apparent molar volume, apparent molar adiabatic compressibility, and solubilization studies of aqueous solutions of sodium p-(n-dodecyl)benzenesulfonate as a function of surfactant and solubilizate concentrations and temperature. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100316a057] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nakanishi K, Habaguchi K, Nakadaira Y, Woods MC, Maruyama M, Major RT, Alauddin M, Patel AR, Weinges K, Baehr W. Structure of bilobalide, a rare tert-butyl containing sesquiterpenoid related to the C20-ginkgolides. J Am Chem Soc 2002. [DOI: 10.1021/ja00743a051] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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