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Nguyen CT, Pham NM, Do VV, Binns CW, Hoang VM, Dang DA, Lee AH. Soyfood and isoflavone intake and risk of type 2 diabetes in Vietnamese adults. Eur J Clin Nutr 2017; 71:1186-1192. [PMID: 28488690 DOI: 10.1038/ejcn.2017.76] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 04/11/2017] [Accepted: 04/13/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES Animal studies have demonstrated that soy isoflavones exert antidiabetic effects. However, evidence regarding the association between soyfood intake, a unique source of isoflavones, and type 2 diabetes remains inconclusive. This study assessed the relationship between habitual intakes of soyfoods and major isoflavones and risk of type 2 diabetes in Vietnamese adults. SUBJECTS/METHODS A hospital-based case-control study was conducted in Vietnam during 2013-2015. A total of 599 newly diagnosed diabetic cases (age 40-65 years) and 599 hospital-based controls, frequency matched by age and sex, were recruited in Hanoi, capital city of Vietnam. Information on frequency and quantity of soyfood and isoflavone intake, together with demographics, habitual diet and lifestyle characteristics, was obtained from direct interviews using a validated and reliable questionnaire. Unconditional logistic regression analyses were performed to examine the association between soy variables and type 2 diabetes risk. RESULTS Higher intake of total soyfoods was significantly associated with a lower risk of type 2 diabetes; the adjusted odds ratio (OR) for the highest versus the lowest intake was 0.31 (95% confidence interval (CI): 0.21-0.46; P<0.001). An inverse dose-response relationship of similar magnitude was also observed for total isoflavone intake (OR: 0.35; 95% CI: 0.24 to 0.49; P<0.001). In addition, inverse associations of specific soyfoods (soy milk, tofu and mung bean sprout) and major isoflavones (daidzein, genistein and glycitein) with the type 2 diabetes risk were evident. CONCLUSIONS Soyfood and isoflavone intake was associated with a lower type 2 diabetes risk in Vietnamese adults.
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Affiliation(s)
- C T Nguyen
- School of Public Health, Curtin University, Perth, WA, Australia
- National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - N M Pham
- School of Public Health, Curtin University, Perth, WA, Australia
- Thai Nguyen University of Medicine and Pharmacy, Thai Nguyen, Vietnam
| | - V V Do
- School of Public Health, Curtin University, Perth, WA, Australia
| | - C W Binns
- School of Public Health, Curtin University, Perth, WA, Australia
| | - V M Hoang
- Hanoi University of Public Health, Hanoi, Vietnam
| | - D A Dang
- National Institute of Hygiene and Epidemiology, Hanoi, Vietnam
| | - A H Lee
- School of Public Health, Curtin University, Perth, WA, Australia
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Tran DN, Tran HH, Matsui M, Suzuki M, Suzuki S, Shibayama K, Pham TD, Van Phuong TT, Dang DA, Trinh HS, Loan CT, Nga LTV, van Doorn HR, Wertheim HFL. Emergence of New Delhi metallo-beta-lactamase 1 and other carbapenemase-producing Acinetobacter calcoaceticus-baumannii complex among patients in hospitals in Ha Noi, Viet Nam. Eur J Clin Microbiol Infect Dis 2016; 36:219-225. [PMID: 27714593 PMCID: PMC5253155 DOI: 10.1007/s10096-016-2784-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 09/05/2016] [Indexed: 11/29/2022]
Abstract
Acinetobacter baumannii is an important cause of multidrug-resistant hospital acquired infections in the world. Here, we investigate the presence of NDM-1 and other carbapenemases among carbapenem-resistant A. baumannii isolated between August 2010 and December 2014 from three large hospitals in Hanoi, Vietnam. We identified 23/582 isolates (4 %) (11 from hospital A, five from hospital B, and seven from hospital C) that were NDM-1 positive, and among them 18 carried additional carbapenemase genes, including seven isolates carrying NDM-1, IMP-1, and OXA-58 with high MICs for carbapenems. Genotyping indicated that NDM-1 carrying A. baumannii have expanded clonally in these hospitals. Five new STs (ST1135, ST1136, ST1137, ST1138, and ST1139) were identified. One isolate carried NDM-1 on a plasmid belonging to the N-repA replicon type; no NDM-1-positive plasmids were identified in the other isolates. We have shown the extent of the carbapenem resistance and the local clonal spread of A. baumannii carrying NDM-1 in these hospitals; coexistence of NDM-1 and IMP-1 is reported for the first time from Vietnam here, and this will further seriously limit future therapeutic options.
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Affiliation(s)
- D N Tran
- National Institute of Hygiene and Epidemiology, Yersin 1, Hanoi, Vietnam
| | - H H Tran
- National Institute of Hygiene and Epidemiology, Yersin 1, Hanoi, Vietnam.
| | - M Matsui
- Department of Bacteriology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - M Suzuki
- Department of Bacteriology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - S Suzuki
- Department of Bacteriology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - K Shibayama
- Department of Bacteriology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - T D Pham
- National Institute of Hygiene and Epidemiology, Yersin 1, Hanoi, Vietnam
| | - T T Van Phuong
- National Institute of Hygiene and Epidemiology, Yersin 1, Hanoi, Vietnam
| | - D A Dang
- National Institute of Hygiene and Epidemiology, Yersin 1, Hanoi, Vietnam
| | | | - C T Loan
- Saint Paul Hospital, Hanoi, Vietnam
| | | | - H R van Doorn
- Oxford University Clinical Research Unit, Hanoi, Vietnam; Nuffield Department of Clinical Medicine, Centre for Tropical Medicine, University of Oxford, Oxford, UK
| | - H F L Wertheim
- Oxford University Clinical Research Unit, Hanoi, Vietnam; Nuffield Department of Clinical Medicine, Centre for Tropical Medicine, University of Oxford, Oxford, UK.,Department of Clinical Microbiology, Radboud UMC, Nijmegen, Netherlands
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Nguyen VAT, Nguyen HQ, Vu TT, Nguyen NAT, Duong CM, Tran THT, Nguyen HV, Dang DA, Bañuls AL. Reduced turn-around time for Mycobacterium tuberculosis drug susceptibility testing with a proportional agar microplate assay. Clin Microbiol Infect 2015; 21:1084-92. [PMID: 26348263 DOI: 10.1016/j.cmi.2015.08.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 03/06/2015] [Revised: 08/04/2015] [Accepted: 08/27/2015] [Indexed: 10/23/2022]
Abstract
Multidrug-resistant tuberculosis is a major issue worldwide; however, accessibility to drug susceptibility testing (DST) is still limited in developing countries, owing to high costs and complexity. We developed a proportion method on 12-well microplates for DST. The assay reduced the time to results to <12 days and <10 days when bacterial growth was checked with the naked eye or a microscope, respectively. Comparison with the Canetti-Grosset method showed that the results of the two assays almost overlapped (kappa index 0.98 (95% CI 0.91-1.00) for isoniazid, rifampicin, streptomycin; and kappa index 0.92 (95% CI 0.85-0.99) for ethambutol). The sequencing of genes involved in drug resistance showed similar level of phenotype-genotype agreement between techniques. Finally, measurement of the MICs of rifampicin and ethambutol suggests that the currently used critical ethambutol concentration should be revised, and that the current molecular drug susceptibility tests for rifampicin need to be re-evaluated, as in vitro rifampicin-sensitive isolates could harbour drug resistance-associated mutation(s).
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Affiliation(s)
- V A T Nguyen
- Department of Bacteriology, National Institute of Hygiene Epidemiology, Hanoi, Vietnam.
| | - H Q Nguyen
- Department of Bacteriology, National Institute of Hygiene Epidemiology, Hanoi, Vietnam; MIVEGEC (IRD 224-CNRS 5290-Université de Montpellier), Centre IRD, Montpellier, France; Department of Biotechnology Pharmacology, University of Science and Technology of Hanoi, Vietnam
| | - T T Vu
- Department of Bacteriology, National Institute of Hygiene Epidemiology, Hanoi, Vietnam
| | - N A T Nguyen
- Department of Bacteriology, National Institute of Hygiene Epidemiology, Hanoi, Vietnam
| | - C M Duong
- Department of Bacteriology, National Institute of Hygiene Epidemiology, Hanoi, Vietnam
| | - T H T Tran
- Department of Bacteriology, National Institute of Hygiene Epidemiology, Hanoi, Vietnam
| | - H V Nguyen
- Department of Microbiology, National Lung Hospital, Hanoi, Vietnam
| | - D A Dang
- Department of Bacteriology, National Institute of Hygiene Epidemiology, Hanoi, Vietnam
| | - A-L Bañuls
- Department of Bacteriology, National Institute of Hygiene Epidemiology, Hanoi, Vietnam; MIVEGEC (IRD 224-CNRS 5290-Université de Montpellier), Centre IRD, Montpellier, France
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Tran HH, Ehsani S, Shibayama K, Matsui M, Suzuki S, Nguyen MB, Tran DN, Tran VP, Tran DL, Nguyen HT, Dang DA, Trinh HS, Nguyen TH, Wertheim HFL. Common isolation of New Delhi metallo-beta-lactamase 1-producing Enterobacteriaceae in a large surgical hospital in Vietnam. Eur J Clin Microbiol Infect Dis 2015; 34:1247-54. [PMID: 25732142 PMCID: PMC4426131 DOI: 10.1007/s10096-015-2345-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 02/01/2015] [Indexed: 01/08/2023]
Abstract
This study sought to monitor the presence of carbapenem-resistant Enterobacteriaceae (CRE) and the proportion New Delhi metallo-beta-lactamase 1 (NDM-1)-producing bacteria between August 2010 and December 2012 in a surgical hospital in Vietnam. We identified 47 CRE strains from a total of 4,096 Enterobacteriaceae isolates (1.1 %) that were NDM-1-positive from 45 patients admitted to 11 different departments, with the majority being from the urology department. The NDM-1 gene was found in seven different species. Genotyping revealed limited clonality of NDM-1-positive isolates. Most of the isolates carried the NDM-1 gene on a plasmid and 17.8 % (8/45) of those were readily transferable. We found five patients at admission and one patient at discharge with NDM-1-positive bacteria in their stool. From 200 screening environmental hospital samples, five were confirmed to be NDM-1-positive and included Acinetobacter species (n = 3) and Enterobacter aerogenes (n = 2). The results reveal that NDM-1-producing Enterobacteriaceae are commonly isolated in patients admitted to a Vietnamese surgical hospital and are also detected in the hospital environment.
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Affiliation(s)
- H H Tran
- National Institute of Hygiene and Epidemiology, Yersin Street 1, Hanoi, Vietnam,
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Pedersen M, Wichmann J, Autrup H, Dang DA, Decordier I, Hvidberg M, Bossi R, Jakobsen J, Loft S, Knudsen LE. Increased micronuclei and bulky DNA adducts in cord blood after maternal exposures to traffic-related air pollution. Environ Res 2009; 109:1012-20. [PMID: 19783246 DOI: 10.1016/j.envres.2009.08.011] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Accepted: 08/13/2009] [Indexed: 05/21/2023]
Abstract
Exposure to traffic-related air pollution in urban environment is common and has been associated with adverse human health effects. In utero exposures that result in DNA damage may affect health later in life. Early effects of maternal and in utero exposures to traffic-related air pollution were assessed through the use of validated biomarkers in blood cells from mother-newborn pairs. A cross-sectional biomonitoring study with healthy pregnant women living in the Greater Copenhagen area, Denmark, was conducted. Bulky DNA adducts and micronuclei (MN) were measured in blood from 75 women and 69 umbilical cords, concurrently collected at the time of planned Caesarean section. Modeled residential traffic density, a proxy measure of traffic-related air pollution exposures, was validated by indoor levels of nitrogen dioxide and polycyclic aromatic hydrocarbons in 42 non-smoking homes. DNA adduct levels were similar and positively correlated in maternal and cord blood (1.40 vs. 1.37 n/10(8) nucleotides; r=0.99; p<0.01). Maternal MN frequencies were significantly associated with age (p<0.01), and higher than those of the newborns (7.0 vs. 3.2 MN per 1000 binucleated cells). Adduct levels were highest among mother-newborn pairs who lived near medium-traffic-density (>400-2500 vehicle km/24h; p<0.01) places. MN frequencies among newborns from women who lived at high-traffic-density homes (>2500 vehicle km/24h) were significantly increased (p=0.02). This trend remained after adjusting for potential confounders and effect modifiers. For the first time increased bulky DNA adducts and MN in cord blood after maternal exposures to traffic-related air pollution are found, demonstrating that these transplacental environmental exposures induce DNA damage in newborns. Given that increased DNA damage early in life indicate an increased risk for adverse health effects later in life, these findings justify intervention of pregnant women.
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Affiliation(s)
- M Pedersen
- Department of Public Health, Section of Environmental Health, University of Copenhagen, Oester Farimagsgade 5A, 1353 K, Copenhagen, Denmark
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Dang DA, Walton RE. [Distortion and vertical fracture of the root: effect produced by condenser design]. Endodoncia 1990; 8:177-86. [PMID: 1964071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The incidence of vertical root fractures and the amount of root distortion created during lateral condensation of gutta-percha with either D11 spreaders or B-finger pluggers were evaluated in vitro. Fifty-five extracted human, single-rooted teeth were instrumented using the step-back flare technique. Ten teeth served as positive controls (obturation to the point of fracture) and five teeth as negative controls (prepared but not obtured). Strain gauges were attached to the root surfaces. In the experimental group, 20 teeth were obturated using a D11 spreader and 20 with a B-finger plugger. Recordings were made of root distortion (expansion) created during obturation. Then, after sectioning the teeth, root surfaces of obturated samples were examined for fractures under the scanning electron microscope. Only the more tapered spreader, the D11, produces vertical root fractures, although very few in number. Also, the D11 spreader caused greater root distortion than did the B-finger plugger.
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Abstract
The incidence of vertical root fractures and the amount of root distortion created during lateral condensation of gutta-percha with either D11 spreaders or B-finger pluggers were evaluated in vitro. Fifty-five extracted human, single-rooted teeth were instrumented using the step-back flare technique. Ten teeth served as positive controls (obturation to the point of fracture) and five teeth as negative controls (prepared but not obturated). Strain gauges were attached to the root surfaces. In the experimental group, 20 teeth were obturated using a D11 spreader and 20 with a B-finger plugger. Recordings were made of root distortion (expansion) created during obturation. Then, after sectioning the teeth, root surfaces of obturated samples were examined for fractures under the scanning electron microscope. Only the more tapered spreader, the D11, produced vertical root fractures, although very few in number. Also, the D11 spreader caused greater root distortion than did the B-finger plugger.
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