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Ling Han, Ruixiang Zheng, Michele R Richards, Ming Tan, Elena N Kitova, Xi Jiang, John S Klassen
Human noroviruses (HuNoVs) are a major cause of acute gastroenteritis. Many HuNoVs recognize histo-blood group antigens (HBGAs) as cellular receptors or attachment factors for infection. It was recently proposed that HuNoV recognition of HBGAs involves a cooperative, multistep binding mechanism that exploits both known and, previously, unknown glycan binding sites. In this study, binding measurements, implemented using electrospray ionization mass spectrometry (ESI-MS), were performed on homodimers of the protruding domain (P dimers) of the capsid protein of three HuNoV strains [Saga (GII...
March 19, 2018: Glycobiology
Wen-Yueh Cheng, Ming-Tsan Liu
Sixteen mumps virus (MuV) sequences collected in Taiwan between 2006 and 2016 were characterized as genotype F (n = 1), G (n = 7), H (n = 4), J (n = 2), and K (n = 2). Mumps genotype F strain was imported from China in 2008 which was in accordance with the epidemic genotype in China. The Philippines was indicated as export country of three genotype H strains in 2007-2010 and Vietnam as export country of one genotype K strain in 2016 that matched with genotypes described in previous reports. Four strains of genotype G were imported from Japan, Thailand, Malaysia and Myanmar individually indicated that genotype G spreads widely in Asia as well as in the global...
February 2018: Heliyon
Tatsuya Nakayama, Yuko Kumeda, Ryuji Kawahara, Takahiro Yamaguchi, Yoshimasa Yamamoto
Background: Due to increasing colistin usage, the dissemination of the colistin-resistant gene mcr-1 has been increasingly investigated. The aim of this study was to determine whether a traveler on a short-term international trip to a developing country could bring mcr-1 back to their home country. Materials and methods: Thirty-four travel events from Japan to Vietnam encompassing 19 travelers were assessed. A fecal specimen was collected from each traveler before and after each travel event and was inoculated on CHROMagar containing cefotaxime (CTX)...
2018: Infection and Drug Resistance
Ruchi Mishra, Saurabh Sharma, Radhey Shyam Sharma, Savita Singh, Milind Madhav Sardesai, Sadhna Sharma, Vandana Mishra
ETHNOPHARMACOLOGICAL RELEVANCE: Viscum articulatum Burm. f. (leafless mistletoe) has been used in traditional system of medicines in India, China, Taiwan, Cambodia, Laos, and Vietnam, to treat blood-related diseases and various inflammatory and degenerative diseases including cancer. Anticancer activities of some phytomolecules purified from Viscum articulatum Burm. f. have been tested. However scientific evidence for the anticancerous potential of aqueous extract of V. articularum (VAQE) used in traditional medicine is lacking...
March 16, 2018: Journal of Ethnopharmacology
Melanie Bannister-Tyrrell, Nguyen Xuan Xa, Johanna Helena Kattenberg, Nguyen Van Van, Vu Khac Anh Dung, Truong Minh Hieu, Nguyen Van Hong, Eduard Rovira-Vallbona, Nguyen Thanh Thao, Tran Thanh Duong, Anna Rosanas-Urgell, Koen Peeters Grietens, Annette Erhart
BACKGROUND: In Vietnam, malaria persists in remote forested regions where infections are spatially heterogeneous, mostly asymptomatic and with low parasite density. Previous studies in Vietnam have investigated broad behavioural concepts such as 'engaging in forest activities' as risk factors for malaria infection, which may not explain heterogeneity in malaria risk, especially in malaria elimination settings. METHODS: A mixed methods study combining ethnographic research and a cross-sectional survey was embedded in a 1-year malariometric cohort study in three ethnic minority villages in South Tra My district, Quang Nam Province in Central Vietnam...
March 19, 2018: Malaria Journal
Nguyen To Anh, Le Nguyen Truc Nhu, Hoang Minh Tu Van, Nguyen Thi Thu Hong, Tran Tan Thanh, Vu Thi Ty Hang, Nguyen Thi Han Ny, Lam Anh Nguyet, Tran Thi Lan Phuong, Le Nguyen Thanh Nhan, Nguyen Thanh Hung, Truong Huu Khanh, Ha Manh Tuan, Ho Lu Viet, Nguyen Tran Nam, Do Chau Viet, Phan Tu Qui, Bridget Wills, Sarawathy Sabanathan, Nguyen Van Vinh Chau, Louise Thwaites, H Rogier van Doorn, Guy Thwaites, Maia A Rabaa, Le Van Tan
Hand, foot and mouth disease (HFMD) is a major public health issue in Asia and has global pandemic potential. Coxsackievirus A6 (CV-A6) was detected in 514/2,230 (23%) of HFMD patients admitted to 3 major hospitals in southern Vietnam during 2011-2015. Of these patients, 93 (18%) had severe HFMD. Phylogenetic analysis of 98 genome sequences revealed they belonged to cluster A and had been circulating in Vietnam for 2 years before emergence. CV-A6 movement among localities within Vietnam occurred frequently, whereas viral movement across international borders appeared rare...
April 2018: Emerging Infectious Diseases
Wei Liu, Lili Deng, Xianyu Lin, Ximing Wang, Yuyan Ma, Qiuyun Deng, Xiaohua Xue, Ge Zhong, Li Jin
During May-August 2016, mumps virus genotype K was detected in 12 Vietnam citizens who entered China at the Shuikou border crossing and 1 girl from China. We provide evidence that mumps genotype K is circulating in Vietnam and was imported to China from Vietnam.
April 2018: Emerging Infectious Diseases
Hoang Thi My Nhung, Bui Viet Anh, Truong Linh Huyen, Doan Trung Hiep, Chu Thi Thao, Phung Nam Lam, Nguyen Thanh Liem
Lung cancer is the most common type of cancer with the highest cancer-associated mortality rates worldwide, as well as in Vietnam. Numerous studies have demonstrated that higher numbers and higher rate of activity of infiltrating natural killer (NK) cells and cytotoxic T lymphocytes (CTLs) in the tumor are closely correlated with positive prognosis, tumor size decrease and longer survival of lung cancer patients. In the present study, the effectiveness of BINKIT® kit in the ex vivo expansion of NK cells and CTLs in the peripheral blood of 7 patients aged between 30 and 84 years with metastatic lung cancer was evaluated...
April 2018: Oncology Letters
Thai Hoang, Hong Nguyen, Ray W Shiraishi, Mai Nguyen, Trista Bingham, Diep Nguyen, Tam Nguyen, Hao Duong, Sheryl Lyss, Hien Tran
BACKGROUND: Methadone maintenance treatment (MMT) is highly effective for reducing heroin use and HIV transmission among people who inject opioids. We sought to measure and understand factors associated with continued heroin use, a critical factor affecting treatment outcome among MMT patients in Vietnam. METHOD: We collected data from medical charts of a nationally representative sample of patients who were on MMT from May 2008 to December 2013. We selected 10 MMT clinics using probability proportional to size and 50 patients/clinic by systematic random sampling...
March 15, 2018: International Journal on Drug Policy
Qingwei Zuo, Ru Zhao, Jia Liu, Qian Zhao, Lingyun Zhu, Bensi Zhang, Junlong Bi, Guishu Yang, Jianping Liu, Gefen Yin
Porcine epidemic diarrhea (PED) causes acute enteric disease and yellowish watery diarrhea, making piglets fast dehydration to death. PED threatens pig industry and leads to substantial economic losses. After the first reports, PED in Yunnan province, China was again identified in 2013 during an epidemiological survey, with follow-up data showing an overall positive rate of 17.47% during 2013-2017, lower than that in other provinces in China. The complete S gene of porcine epidemic diarrhea virus (PEDV) is 4149-4158 bp long...
March 13, 2018: Virus Research
Matthew S Panizzon, Richard L Hauger, Hong Xian, Kristen Jacobson, Michael J Lyons, Carol E Franz, William S Kremen
Animal and human research suggests that testosterone is associated with hippocampal structure and function. Studies examining the association between testosterone and either hippocampal structure or hippocampal-mediated cognitive processes have overwhelmingly focused on the effects of testosterone alone, without considering the interaction of other neuroendocrine factors. The aim of the present study was to examine the interactive effects of testosterone and cortisol in relation to hippocampal volume and episodic memory in a sample of late-middle aged men from the Vietnam Era Twin Study of Aging...
March 9, 2018: Psychoneuroendocrinology
Bach Xuan Tran, Hoa Thi DO, Luong Thanh Nguyen, Victoria Boggiano, Huong Thi LE, Xuan Thanh Thi LE, Ngoc Bao Trinh, Khanh Nam DO, Cuong Tat Nguyen, Thanh Trung Nguyen, Anh Kim Dang, Hue Thi Mai, Long Hoang Nguyen, Selena Than, Carl A Latkin
Consumption of fast food and street food is increasingly common among Vietnamese, particularly in large cities. The high daily demand for these convenient food services, together with a poor management system, has raised concerns about food hygiene and safety (FHS). This study aimed to examine the FHS knowledge and practices of food processors and sellers in food facilities in Hanoi, Vietnam, and to identify their associated factors. A cross-sectional study was conducted with 1,760 food processors and sellers in restaurants, fast food stores, food stalls, and street vendors in Hanoi in 2015...
March 15, 2018: Journal of Food Protection
Kishore P Madhwani, P K Nag
Background: Use of laptops and hand-held devices increase the risk of musculoskeletal disorders (MSDs). More time spent on this activity adopting faulty postures, higher the risk of developing such injuries. This study addresses training on office ergonomics with emphasis on sustainable behavior change among employees to work in safe postures, as this is a top priority in the corporate environment, today. Aim: To explore training intervention methods that ensure wider coverage of awareness on office ergonomics, thereby promoting safer working and suggesting sustainable programs for behavior change and job enrichment...
May 2017: Indian Journal of Occupational and Environmental Medicine
Trung Bui, Thanh-Son Dao, Truong-Giang Vo, Miquel Lürling
Warming climate is predicted to promote cyanobacterial blooms but the toxicity of cyanobacteria under global warming is less well studied. We tested the hypothesis that raising temperature may lead to increased growth rates but to decreased microcystin (MC) production in tropical Microcystis strains. To this end, six Microcystis strains were isolated from different water bodies in Southern Vietnam. They were grown in triplicate at 27 °C (low), 31 °C (medium), 35 °C (high) and 37 °C (extreme). Chlorophyll-a-, particle- and MC concentrations as well as dry-weights were determined...
March 14, 2018: Toxins
Rebecca B Hershow, Diana S Zuskov, Nguyen Vu Tuyet Mai, Geetanjali Chander, Heidi E Hutton, Carl Latkin, Nguyen Duc Vuong, Teerada Sripaipan, Kathryn E Lancaster, Tran Viet Ha, Vivian F Go
BACKGROUND: Alcohol use, a highly normative behavior in Vietnam that is associated with high rates of HIV infection and lower antiretroviral treatment (ART) adherence, has been largely overlooked by HIV prevention efforts. OBJECTIVES: Using the risk environment framework, this qualitative study aims to explore the perceived microenvironmental (community-level) and endogenous (individual-level) barriers and facilitators to alcohol reduction among people living with HIV (PLHIV) with alcohol use disorders (AUDs) in Vietnam...
March 14, 2018: Substance Use & Misuse
Dinh Bao Truong, Flavie Luce Goutard, Stéphane Bertagnoli, Alexis Delabouglise, Vladimir Grosbois, Marisa Peyre
This study aimed to analyze the financial impact of foot-and-mouth disease (FMD) outbreaks in cattle at the farm-level and the benefit-cost ratio (BCR) of biannual vaccination strategy to prevent and eradicate FMD for cattle in South Vietnam. Production data were collected from 49 small-scale dairy farms, 15 large-scale dairy farms, and 249 beef farms of Long An and Tay Ninh province using a questionaire. Financial data of FMD impacts were collected using participatory tools in 37 villages of Long An province...
2018: Frontiers in Veterinary Science
Kinh Van Nguyen, Trung Vu Nguyen, Hang Thi Thuy Nguyen, Duyet Van Le
Introduction: Pseudomonas aeruginosa has many mechanisms of resistance to fluoroquinolones. The main mechanism is to change the effect of two enzymes that open the DNA helix - the enzyme DNA gyrase ( gyrA ) and the topoisomerase IV ( parC ). In addition, mutations that render the MexAB-oprM pump ( mexR ) dysfunctional, leading to its overexpression, also enhance resistance to fluoroquinolones. In this study, we aim to detect point mutations of gyrA , parC , and mexR genes that are predicted to be associated with fluoroquinolone resistance in 141 fluoroquinolone-resistant clinical isolates of P...
2018: Infection and Drug Resistance
Tiet-Hanh Dao-Tran, Charrlotte Seib, Lee Jones, Debra Anderson
OBJECTIVE: This study compared health-related quality of life and its associated factors among 305 women in Vietnam and 175 women in Australia aged 60-71. Descriptive analyses, Chi square, independent t-tests, and General Linear Models were used for data analysis. RESULTS: After controlling for socio-demographics, lifestyles, and chronic diseases, older women in Vietnam had lower levels of physical health but similar levels of mental health to those in Australia...
March 13, 2018: BMC Research Notes
William Sledge, Julia Rozanova, Julianne Dorset
OBJECTIVE: To provide a follow up of a 1976 study of the impact of captivity on U.S. Air Force (USAF) POWs and USAF Controls matched for time in Southeast Asia, military rank and aircraft crew position. METHOD: Qualitative study of replies to open ended questions of positive and negative changes due to their captivity/combat experiences made by participants (POWs and Controls) who replied in both 1976 and in 2003. RESULTS: Both groups acknowledged positive and negative effects of the experiences in 1976...
March 13, 2018: Psychiatry
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