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Elisete P Rodrigues, Cleiton de Paula Soares, Patrícia G Galvão, Eddie L Imada, Jean L Simões-Araújo, Luc F M Rouws, André L M de Oliveira, Márcia S Vidal, José I Baldani
Gluconacetobacter diazotrophicus is a beneficial nitrogen-fixing endophyte found in association with sugarcane plants and other important crops. Beneficial effects of G. diazotrophicus on sugarcane growth and productivity have been attributed to biological nitrogen fixation process and production of phytohormones especially indole-3-acetic acid (IAA); however, information about the biosynthesis and function of IAA in G. diazotrophicus is still scarce. Therefore, the aim of this work was to identify genes and pathways involved in IAA biosynthesis in this bacterium...
2016: Frontiers in Microbiology
Hong Zhang, Zheng Dan, Zhi-Jie Ding, Yuan-Zhi Lao, Hong-Sheng Tan, Hong-Xi Xu
A UPLC-PDA-QTOFMS-guided isolation strategy was employed to screen and track potentially new compounds from Garcinia oblongifolia. As a result, two new prenylated xanthones, oblongixanthones D and E (1-2), six new prenylated benzoylphloroglucinol derivatives, oblongifolins V-Z (3-7) and oblongifolin AA (8), as well as a known compound oblongifolin L (9), were isolated from the EtOAc-soluble fraction of an acetone extract of the leaves of Garcinia oblongifolia guided by UPLC-PDA-QTOFMS analysis. The structures of the new compounds were elucidated by 1D- and 2D-NMR spectroscopic analysis and mass spectrometry...
October 21, 2016: Scientific Reports
Bounthanom Sengkeopraseuth, Khonesavanh Bounma, Chansone Siamong, Siddhartha Datta, Bouaphanh Khamphaphongphane, Phengta Vongphachanh, Dapeng Luo, Michael O'Reilly, Cindy H Chiu
BACKGROUND: In January 2015, the Lao People's Democratic Republic Ministry of Health received a report of 34 cases of fever and rash with one laboratory-confirmed measles case in Houitone village, Pakseng District of Luang Prabang Province. Between 21 and 27 January, we conducted a field investigation to determine the etiology, magnitude and severity of this outbreak. METHODS: We conducted active case findings in Houitone and neighbouring villages and collected information on age, location, date of rash onset, symptoms and measles vaccination status...
January 2016: Western Pacific Surveillance and Response Journal: WPSAR
Konstantin Evdokimov, Kong Sayasinh, Phonethipsavanh Nouanthong, Keooudomphone Vilivong, Bounthome Samountry, Darouny Phonekeo, Michel Strobel, Frank Haegeman, Peter Heimann, Claude P Muller, Antony P Black
OBJECTIVES: In Lao People's Democratic Republic (PDR) the high burden of vaccine preventable diseases is thought to be mainly due to low vaccine coverage. Here, we investigated the seroprotective response against diphtheria-tetanus-whole cell pertussis-hepatitis B-Haemophilus influenzae type b (DTPw-HepB-Hib) vaccine in children. METHODS: Serum was collected from 1131 children aged 9 to 50 months and their mothers in a cross-sectional study between December 2013 and July 2014...
October 15, 2016: Clinical Microbiology and Infection
Takeshi Akiyama, Tiengkham Pongvongsa, Souraxay Phrommala, Tomoyo Taniguchi, Yuba Inamine, Rie Takeuchi, Tadashi Watanabe, Futoshi Nishimoto, Kazuhiko Moji, Shigeyuki Kano, Hisami Watanabe, Jun Kobayashi
BACKGROUND: Asymptomatic malaria can be observed in both stable endemic areas and unstable transmission areas. However, although much attention has been given to acute malaria infections, relatively little attention has been paid to asymptomatic malaria. Nonetheless, because the asymptomatic host serves as a reservoir for the malaria parasite, asymptomatic malaria is now recognized as an important obstacle to malaria elimination. Asymptomatic malaria is also associated with anaemia, a global public health problem with serious consequences on human health as well as social and economic development...
October 18, 2016: Malaria Journal
Tiengkham Pongvongsa, Daisuke Nonaka, Moritoshi Iwagami, Masami Nakatsu, Panom Phongmany, Futoshi Nishimoto, Jun Kobayashi, Bouasy Hongvanthon, Paul T Brey, Kazuhiko Moji, Toshihiro Mita, Shigeyuki Kano
BACKGROUND: In the Lao PDR, malaria morbidity and mortality have remarkably decreased over the past decade. However, asymptomatic infections in rural villages contribute to the on-going local transmission. The primary objective of this study was to explore the characteristics of infections in a malaria-endemic district of the Lao PDR. The specific objectives were to investigate the prevalence and species of malaria parasites using molecular methods and to assess individual and household parasite levels and the characteristics associated with malaria infection...
October 18, 2016: Malaria Journal
Carolina Fernández-Lao, Irene Cantarero-Villanueva, Noelia Galiano-Castillo, Elena Caro-Morán, Lourdes Díaz-Rodríguez, Manuel Arroyo-Morales
BACKGROUND: Mobile learning (m-learning) has becoming very popular in education due to the rapidly advancing technology in our society. The potentials of the mobile applications should be used to enhance the education process. Few mobile applications have been designed to complement the study of physical therapy skills for physiotherapy students. The aim of this study was to investigate whether a mobile application, as a supplement to traditional learning, is useful for physiotherapy students in the acquisition of palpation and ultrasound skills in the shoulder area...
October 19, 2016: BMC Medical Education
Li Zhang, Si-Yuan Kong, Zhao-Qing Zheng, Xiao-Xiao Meng, Ji-Ling Feng, Hong-Sheng Tan, Yuan-Zhi Lao, Lian-Bo Xiao, Hong-Xi Xu
Nujiangexathone A (NJXA), a novel compound derived from Garcinia nujiangensis, has been demonstrated to inhibit the proliferation of several human cancer cell lines. This study is the first to demonstrate the apoptosis inductive activities of NJXA and the possible underlying mechanisms. Our results demonstrated that NJXA inhibited colony formation by HeLa and SiHa cells in a dose-dependent manner. An Annexin V-FITC/PI staining assay showed that NJXA strongly triggered apoptosis in a dose-dependent manner. Western blotting analyses showed that NJXA induced the caspase-dependent apoptosis of HeLa and SiHa cells by triggering a series of events, including changes in the levels of Bcl-2 family proteins, cytochrome c release, caspase-3 activation, and chromosome fragmentation...
October 12, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Chinh Dang Van, Galayanee Doungchawee, Sutas Suttiprapa, Yuji Arimatsu, Sasithorn Kaewkes, Banchob Sripa
Opisthorchiasis caused by Opisthorchis viverrini is an important foodborne trematodiasis in Thailand, Laos and Cambodia. Interestingly, the opisthorchiasis endemic region overlaps with an area of leptospirosis emergence. Here we report an association between opisthorchiasis and leptospirosis in Thailand. Of 280 sera collected from villagers living around the Lawa wetland complex in Khon Kaen province, 199 (71%) were seropositive for leptospirosis by immunochromatography. Individuals with O. viverrini infection had a significantly higher rate of leptospirosis than those without (P=0...
October 13, 2016: Parasitology International
Bui Thi Mai Huong, Le Danh Tuyen, Do Huu Tuan, Leon Brimer, Anders Dalsgaard
Aflatoxins, fumonisins and ochratoxin A that contaminate various agricultural commodities are considered of significant toxicity and potent human carcinogens. This study took a total dietary study approach and estimated the dietary exposure of these mycotoxins for adults living in Lao Cai province, Vietnam. A total of 42 composite food samples representing 1134 individual food samples were prepared according to normal household practices and analysed for the three mycotoxins. Results showed that the dietary exposure to aflatoxin B1 (39...
October 13, 2016: Food and Chemical Toxicology
Anonh Xeuatvongsa, Siddhartha Sankar Datta, Edna Moturi, Kathleen Wannemuehler, Phanmanisone Philakong, Viengnakhone Vongxay, Vansy Vilayvone, Minal K Patel
BACKGROUND: Hepatitis B vaccine birth dose (HepB-BD) was introduced in Lao People's Democratic Republic to prevent perinatal hepatitis B virus transmission in 2008; high coverage is challenging since only 38% of births occur in a health facility. Healthcare workers report being unaware of home births and thus unable to conduct timely postnatal care (PNC) home visits. A quasi-experimental pilot study was conducted wherein mobile phones and phone credits were provided to village health volunteers (VHV) and healthcare workers (HCWs) to assess whether this could improve HepB-BD administration, as well as birth notification and increase home visits...
October 11, 2016: Vaccine
X Zhang, H Han, T Zhang, T Sun, Y Xi, N Chen, Y Huang, R Dang, X Lan, H Chen, C Lei
Recent transcriptomic analysis of the bovine Y chromosome revealed abundant presence of multi-copy protein coding gene families on the male-specific region of the Y chromosome (MSY). Copy number variations (CNVs) of several MSY genes are closely related to semen quality and male reproduction in cattle. However, the CNVs of MSY genes in water buffalo are largely unknown. Therefore, this study aimed to investigate the CNVs of HSFY and ZNF280BY of 298 buffaloes from 17 populations distributed in China, Vietnam and Laos using quantitative PCR...
October 14, 2016: Animal Genetics
S Saar, M Sokirjanski, L K Junkin, J Laos, A L Laar, I Merioja, U Lepner, L Kukk, A Remmelgas, T Asser, K Innos, J Starkopf, P Talving
PURPOSE: Trauma mechanisms and patterns of severe injuries during the Estonian independence have not been evaluated. The aim of the study was to compare the incidence and outcomes of severe injuries between time periods of early independence from the Soviet Union and the present time. METHODS: After the ethics review board approval, all adult trauma admissions to major trauma facilities in 1993-1994 and 2013-2014 with Injury Severity Score >15 were identified...
October 13, 2016: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
Yang Liu, Srilakshmi Pandeswara, Vinh Dao, Álvaro Padrón, Justin M Drerup, Shunhua Lao, Aijie Liu, Vincent Hurez, Tyler J Curiel
mTOR drives tumor growth but also supports T cell function, rendering the applications of mTOR inhibitors complex especially in T cell malignancies. Here we studied the effects of the mTOR inhibitor rapamycin in mouse EL4 T cell lymphoma. Typical pharmacologic rapamycin (1-8 mg/kg) significantly reduced tumor burden via direct suppression of tumor cell proliferation and improved survival in EL4 challenge independent of anti-tumor immunity. Denileukin diftitox (DD)-mediated depletion of regulatory T cells significantly slowed EL4 growth in vivo in a T cell-dependent fashion...
October 13, 2016: Cancer Research
Yongfu Zhang, Yuan Yang, Wing Yt Lau, Samradhvi Garg, Jianxin Lao
AIM: This study aims to provide an overview of the current knowledge available on the effectiveness of pre-operative clown intervention on psychological distress in children and parents. METHODS: PubMed, MEDLINE, Embase and PsycINFO databases were searched to identify relevant studies. Systematic review procedures were followed including a quality assessment. Meta-analysis of suitable studies was conducted. RESULTS: Eight studies were included; six reported that clown intervention reduced children's pre-operative anxiety, while one found that children's pre-operative distress levels were unchanged...
October 13, 2016: Journal of Paediatrics and Child Health
Jeemeng Lao, Andreia M Smith-Moritz, Jennifer C Mortimer, Joshua L Heazlewood
The cytosol is at the core of cellular metabolism and contains many important metabolic pathways, including glycolysis, gluconeogenesis, and the pentose phosphate pathway. Despite the importance of this matrix, few attempts have sought to specifically enrich this compartment from plants. Although a variety of biochemical pathways and signaling cascades pass through the cytosol, much of the focus has usually been targeted at the reactions that occur within membrane-bound organelles of the plant cell. In this chapter, we outline a method for the enrichment of the cytosol from rice suspension cell cultures which includes sample preparation and enrichment as well as validation using immunoblotting and fluorescence-tagged proteins...
2017: Methods in Molecular Biology
Ross Lawrenson, Chunhuan Lao, Mark Elwood, Charis Brown, Diana Sarfati, Ian Campbell
Many rural communities have poor access to health services due to a combination of distance from specialist services and a relative shortage of general practitioners. Our aims were to compare the characteristics of urban and rural women with breast cancer in New Zealand, to assess breast cancer-specific and all-cause survival using the Kaplan-Meier method and Cox proportional hazards model, and to assess whether the impact of rurality is different for Māori and New Zealand (NZ) European women. We found that rural women tended to be older and were more likely to be Māori...
October 11, 2016: International Journal of Environmental Research and Public Health
K S Mikkonen, D Merger, P Kilpeläinen, L Murtomäki, U S Schmidt, M Wilhelm
Materials manufacturing industries seek efficient, economic, and sustainable compounds for stabilizing dispersed systems such as emulsions. In this study, novel, abundant biobased hydrocolloids spruce galactoglucomannans (GGM) and birch glucuronoxylans (GX) were obtained from a forestry biorefining process and characterized as versatile stabilizers of rapeseed oil-in-water emulsions. For the first time, GGM and GX isolated by pressurized hot water extraction (PHWE) of spruce and birch saw meal, respectively, were studied in emulsions...
September 27, 2016: Soft Matter
K Saeng-Chuto, A Lorsirigool, G Temeeyasen, D T Vui, C J Stott, A Madapong, T Tripipat, M Wegner, M Intrakamhaeng, W Chongcharoen, A Tantituvanont, P Kaewprommal, J Piriyapongsa, D Nilubol
Porcine deltacoronavirus (PDCoV) was detected by RT-PCR in 12 of 97 (12.4%) intestinal samples collected during 2015 from piglets with diarrhoea in Thailand, Vietnam and Lao PDR. Spike, membrane and nucleocapsid genes were characterized, and phylogenetic analyses demonstrated that PDCoV isolates from Thai and Lao PDR form a novel cluster, separated from US and China isolates, but relatively were more closely related to China PDCoV than US isolates. Vietnam PDCoVs, however, were grouped together with US PDCoV...
October 7, 2016: Transboundary and Emerging Diseases
N Matsumoto, S Nampanya, S Khounsy, J R Young, K A Ashley, R D Bush, P A Windsor
Improved large ruminant productivity is increasingly acknowledged as a pathway for the alleviation of rural poverty and food insecurity in smallholder communities in Southeast Asia; yet, in much of Laos, bovine reproductive management is practically absent. Large ruminant reproduction skills were studied, using face-to-face surveys (n=60) of the knowledge, attitudes, and practices (KAP) of farmers, plus an extension of an examination of parameters of reproductive efficiency (n = 1786 cattle and 434 buffalo) in the northern provinces of Luang Prabang and Xieng Khouang...
October 7, 2016: Tropical Animal Health and Production
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