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https://www.readbyqxmd.com/read/28548141/glass-capillary-based-microfluidic-elisa-for-rapid-diagnostics
#1
Xiaotian Tan, Maung Kyaw Khaing Oo, Yuan Gong, Yaoxin Li, Hongbo Zhu, Xudong Fan
Enzyme-linked immunosorbent assay (ELISA) is widely used in medical diagnostics and fundamental biological research due to its high specificity and reproducibility. However, the traditional 96-well-plate based ELISA still suffers from several notable drawbacks, such as long assay time (4-6 hours), burdensome procedures and large sample/reagent volumes (∼100 μl), which significantly limit traditional ELISA's applications in rapid clinical diagnosis and quasi-real-time prognosis of some fast-developing diseases...
May 26, 2017: Analyst
https://www.readbyqxmd.com/read/28533434/lysophosphatidylinositol-induced-activation-of-the-cation-channel-trpv2-triggers-glucagon-like-peptide-1-secretion-in-enteroendocrine-l-cells
#2
Kazuki Harada, Tetsuya Kitaguchi, Taichi Kamiya, Kyaw Htet Aung, Kazuaki Nakamura, Kunihiro Ohta, Takashi Tsuboi
The lysophosphatidylinositol (LPI) has crucial roles in multiple physiological processes, including insulin exocytosis from pancreatic islets. However, the role of LPI in secretion of glucagon like peptide-1 (GLP-1), a hormone that enhances glucose-induced insulin secretion, is unclear. Here, we used the murine enteroendocrine L cell line GLUTag and primary murine small intestinal cells to elucidate the mechanism of LPI-induced GLP-1 secretion. Exogenous LPI addition increased intracellular Ca2+ concentrations ([Ca2+]i) in GLUTag cells and induced GLP-1 secretion from both GLUTag and acutely prepared primary intestinal cells...
May 22, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28531230/identifying-artemisinin-resistance-from-parasite-clearance-half-life-data-with-a-simple-shiny-web-application
#3
Sai Thein Than Tun, Yoel Lubell, Arjen M Dondorp, Tom Fieldman, Kyaw Myo Tun, Olivier Celhay, Xin Hui Chan, Sompob Saralamba, Lisa J White
The emergence of artemisinin-resistant Plasmodium falciparum malaria is a major threat to malaria elimination. New tools for supporting the surveillance of artemisinin resistance are critical for current and future malaria control and elimination strategies. We have developed an open-access, user-friendly, web-based tool to analyse parasite clearance half-life data of P. falciparum infected patients after treatment with artemisinin derivatives, so that resistance to artemisinin can be identified. The tool can be accessed at bit...
2017: PloS One
https://www.readbyqxmd.com/read/28525854/sensitive-sulfide-ion-detection-by-optofluidic-catalytic-laser-using-horseradish-peroxidase-hrp-enzyme
#4
Chaoyang Gong, Yuan Gong, Maung Kyaw Khaing Oo, Yu Wu, Yunjiang Rao, Xiaotian Tan, Xudong Fan
We report an optofluidic catalytic laser for sensitive sulfide ion detection. In the catalytic reaction, horseradish peroxidase (HRP) enzyme is used for catalyzing the non-fluorescent substrate, 10-Acetyl-3,7-dihydroxyphenox-azine (ADHP), to produce highly fluorescent resorufin, which was used as gain medium for lasing. Using sulfide ions as inhibitors, the catalytic reaction slows down, resulting in a delay in the lasing onset time, which is used as the sensing signal. The sensing mechanism of the catalytic laser is theoretically analyzed and the performance is experimentally characterized...
May 12, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28520726/losing-a-jewel-rapid-declines-in-myanmar-s-intact-forests-from-2002-2014
#5
Tejas Bhagwat, Andrea Hess, Ned Horning, Thiri Khaing, Zaw Min Thein, Kyaw Moe Aung, Kyaw Htet Aung, Paing Phyo, Ye Lin Tun, Aung Htat Oo, Anthony Neil, Win Myo Thu, Melissa Songer, Katherine LaJeunesse Connette, Asja Bernd, Qiongyu Huang, Grant Connette, Peter Leimgruber
New and rapid political and economic changes in Myanmar are increasing the pressures on the country's forests. Yet, little is known about the past and current condition of these forests and how fast they are declining. We mapped forest cover in Myanmar through a consortium of international organizations and environmental non-governmental groups, using freely-available public domain data and open source software tools. We used Landsat satellite imagery to assess the condition and spatial distribution of Myanmar's intact and degraded forests with special focus on changes in intact forest between 2002 and 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28518029/influenza-a-h9n2-virus-myanmar-2014-2015
#6
Thant Nyi Lin, Nutthawan Nonthabenjawan, Supassama Chaiyawong, Napawan Bunpapong, Supanat Boonyapisitsopa, Taveesak Janetanakit, Pont Pont Mon, Hla Hla Mon, Kyaw Naing Oo, Sandi Myint Oo, Mar Mar Win, Alongkorn Amonsin
Routine surveillance of influenza A virus was conducted in Myanmar during 2014-2015. Influenza A(H9N2) virus was isolated in Shan State, upper Myanmar. Whole-genome sequencing showed that H9N2 virus from Myanmar was closely related to H9N2 virus of clade 4.2.5 from China.
June 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28489510/safety-and-antitumor-activity-of-pembrolizumab-in-advanced-programmed-death-ligand-1-positive-endometrial-cancer-results-from-the-keynote-028-study
#7
Patrick A Ott, Yung-Jue Bang, Dominique Berton-Rigaud, Elena Elez, Michael J Pishvaian, Hope S Rugo, Igor Puzanov, Janice M Mehnert, Kyaw L Aung, Juanita Lopez, Marion Carrigan, Sanatan Saraf, Mei Chen, Jean-Charles Soria
Purpose The multicohort phase Ib KEYNOTE-028 (NCT02054806) study was designed to evaluate the safety and efficacy of pembrolizumab, an anti-programmed death 1 monoclonal antibody, in patients with programmed death ligand 1 (PD-L1) -positive advanced solid tumors. The results from the advanced endometrial cancer cohort are reported. Patients and Methods Female patients with locally advanced or metastatic PD-L1-positive endometrial cancer who had experienced progression after standard therapy were eligible. Patients received pembrolizumab 10 mg/kg every 2 weeks for up to 24 months or until progression or unacceptable toxicity...
May 10, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28486544/serotype-distribution-of-streptococcus-pneumoniae-causing-invasive-disease-in-children-in-the-post-pcv-era-a-systematic-review-and-meta-analysis
#8
Evelyn Balsells, Laurence Guillot, Harish Nair, Moe H Kyaw
BACKGROUND: Routine immunisation with pneumococcal conjugate vaccines (PCV7/10/13) has reduced invasive pneumococcal disease (IPD) due to vaccine serotypes significantly. However, an increase in disease due to non-vaccine types, or serotype replacement, has been observed. Serotypes' individual contributions to IPD play a critical role in determining the overall effects of PCVs. This study examines the distribution of pneumococcal serotypes in children to identify leading serotypes associated with IPD post-PCV introduction...
2017: PloS One
https://www.readbyqxmd.com/read/28483458/killer-cells-in-atherosclerosis
#9
Tin Kyaw, Peter Tipping, Ban-Hock Toh, Alex Bobik
Cytotoxic lymphocytes (killer cells) play a critical role in host defence mechanisms, protecting against infections and in tumour surveillance. They can also exert detrimental effects in chronic inflammatory disorders and in autoimmune diseases. Tissue cell death and necrosis are prominent features of advanced atherosclerotic lesions including vulnerable/unstable lesions which are largely responsible for most heart attacks and strokes. Evidence for accumulation of killer cells in both human and mouse lesions together with their cytotoxic potential strongly suggest that these cells contribute to cell death and necrosis in lesions leading to vulnerable plaque development and potentially plaque rupture...
May 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28481938/correction-pathogenic-waterborne-free-living-amoebae-an-update-from-selected-southeast-asian-countries
#10
Mohamad Azlan Abdul Majid, Tooba Mahboob, Brandon G J Mong, Narong Jaturas, Reena Leeba Richard, Tan Tian-Chye, Anusorn Phimphila, Panomphanh Mahaphonh, Kyaw Nyein Aye, Wai Lynn Aung, Joon Chuah, Alan D Ziegler, Atipat Yasiri, Nongyao Sawangjaroen, Yvonne A L Lim, Veeranoot Nissapatorn
[This corrects the article DOI: 10.1371/journal.pone.0169448.].
2017: PloS One
https://www.readbyqxmd.com/read/28475232/safety-and-efficacy-of-sofosbuvir-based-daa-regimens-for-hepatitis-c-virus-genotypes-1-4-and-6-in-myanmar-real-world-experience
#11
Naomi Khaing Than Hlaing, Robert A Mitrani, Soe Thu Aung, Wai Wai Phyo, Marina Serper, A Mi Mi Kyaw, Aung Hlaing Bwa, Khin Maung Win, K Rajender Reddy
This open-label, clinical experience investigated the safety and efficacy of direct-acting antiviral (DAA) Hepatitis C Virus (HCV) therapy in Myanmar. 344 patients completed treatment between June 2015 and May 2016. Patients with HCV genotypes 1 - 4 and 6 received one of four treatments: (1) Peg-interferon (PEG-IFN) + Sofosbuvir (SOF) + Ribavirin (RBV) for 12 weeks, (2) SOF + RBV for 24 weeks, (3) Ledipasvir (LDV) + SOF for 12 weeks, or (4) Daclatasvir (DCV) + SOF + RBV for 12 or 24 weeks. Genotype 3 was most common (n = 133, 38...
May 5, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28471481/cytotoxic-lymphocytes-and-atherosclerosis-significance-mechanisms-and-therapeutic-challenges
#12
Tin Kyaw, Karlheinz Peter, Li Yi, Peter Tipping, Ban-Hock Toh, Alex Bobik
Cytotoxic lymphocytes encompass natural killer (NK) lymphocytes (cells) and cytotoxic T cells that include CD8+ T cells, NKT cells, gamma, delta (γδ)-T cells and human CD4 + CD28- T cells. These cells play critical roles in inflammatory diseases and in controlling cancers and infections. Cytotoxic lymphocytes can be activated via a number of mechanisms that may involve dendritic cells, macrophages, cytokines or surface proteins on stressed cells. Upon activation, they secrete proinflammatory cytokines as well as anti-inflammatory cytokines, chemokines and cytotoxins to promote inflammation and development of atherosclerotic lesions including vulnerable lesions, which are strongly implicated in myocardial infarctions and strokes...
May 4, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28463083/prevalence-and-antimicrobial-resistance-of-salmonella-isolates-from-chicken-carcasses-in-retail-markets-in-yangon-myanmar
#13
Aung Zaw Moe, Peter Paulsen, Duangporn Pichpol, Reinhard Fries, Herlinde Irsigler, Maximilian P O Baumann, Kyaw Naing Oo
A cross-sectional investigation was conducted concerning prevalence, antimicrobial resistance, multidrug resistance patterns, and serovar diversity of Salmonella in chicken meat sold at retail in Yangon, Myanmar. The 141 chicken meat samples were collected at 141 retail markets in the Yangon Region, Myanmar, 1 November 2014 to 31 March 2015. Information on hygienic practices (potential risk factors) was retrieved via checklists. Salmonella was isolated and identified according to International Organization for Standardization methods (ISO 6579:2002) with minor modifications...
May 2, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28449916/psychosocial-determinants-of-influenza-vaccination-intention-a-cross-sectional-study-on-inpatient-nurses-in-singapore
#14
Dwee Wee Lim, Lay Tin Lee, Win Mar Kyaw, Angela Chow
Nurses have the closest interaction with inpatients and could transmit influenza to patients. From a self-administered questionnaire survey among inpatient nurses at a tertiary hospital, we observed that the strongest factors associated with intention for future vaccination were perceived benefits of and motivations for vaccination (adjusted odds ratio [aOR], 3.30; 95% confidence interval [CI], 2.55-4.27), and perceived nonsusceptibility to influenza and preference for vaccination alternatives (aOR, 0.26; 95% CI, 0...
April 24, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28436455/the-impact-of-gold-mining-and-agricultural-concessions-on-the-tree-cover-and-local-communities-in-northern-myanmar
#15
Sarah Papworth, Madhu Rao, Myint Myint Oo, Kyaw Thinn Latt, Robert Tizard, Thomas Pienkowski, L Roman Carrasco
Myanmar offers unique opportunities for both biodiversity conservation and foreign direct investment due to projected economic growth linked to natural resource exploitation. Industrial-scale development introduces new land uses into the landscape, with unknown repercussions for local communities and biodiversity conservation. We use participatory mapping of 31 communities, focus groups in 28 communities, and analyses of forest cover change during 2000-2010 using MODIS vegetation continuous fields images, to understand the social and environmental impacts of gold mining and agricultural concessions in Myanmar's Hukaung Valley (~21,800 km(2))...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28427286/incomes-and-outcomes-social-security-disability-benefits-in-first-episode-psychosis
#16
Robert A Rosenheck, Sue E Estroff, Kyaw Sint, Haiqun Lin, Kim T Mueser, Delbert G Robinson, Nina R Schooler, Patricia Marcy, John M Kane
OBJECTIVE: Social Security Administration (SSA) disability benefits are an important source of income for people with psychoses and confer eligibility for health insurance. The authors examined the impact of coordinated specialty care on receipt of such benefits in first-episode psychosis, along with the correlates and consequences of receiving them. METHOD: The Recovery After an Initial Schizophrenia Episode-Early Treatment Program (RAISE-ETP) study, a 34-site cluster-randomized trial, compared NAVIGATE, a coordinated specialty care program, to usual community care over 2 years...
April 21, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28414004/clinical-virological-and-epidemiological-characterization-of-dengue-outbreak-in-myanmar-2015
#17
A K Kyaw, M M Ngwe Tun, M L Moi, T Nabeshima, K T Soe, S M Thwe, A A Myint, K T T Maung, W Aung, D Hayasaka, C C Buerano, K Z Thant, K Morita
Hospital-based surveillance was conducted at two widely separated regions in Myanmar during the 2015 dengue epidemic. Acute phase serum samples were collected from 332 clinically diagnosed dengue patients during the peak season of dengue cases. Viremia levels were measured by quantitative real-time PCR and plaque assays using FcγRIIA-expressing and non-FcγRIIA-expressing BHK cells to specifically determine the infectious virus particles. By serology and molecular techniques, 280/332 (84·3%) were confirmed as dengue patients...
April 17, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28413435/low-prevalence-of-human-mammary-tumor-virus-hmtv-in-breast-cancer-patients-from-myanmar
#18
Thar Htet San, Masayoshi Fujisawa, Soichiro Fushimi, Teizo Yoshimura, Toshiaki Ohara, Lamin Soe, Ngu Wah Min, Ohnmar Kyaw, Xu Yang, Akihiro Matsukawa
BACKGROUND: Human mammary tumor virus (HMTV) is 90-95% homologous to mouse mammary tumor virus (MMTV), one of the causal agents of murine mammary tumors. HMTV (MMTV-like) sequences were reported to be present in human breast cancers from several populations with a prevalence range of 0-78%; however, the prevalence of HMTV in breast cancers from Myanmar remains unknown. METHODS: Fifty-eight breast cancer samples from Myanmar women were examined in this study. DNA was isolated from formalin-fixed paraffin-embedded specimens, and HMTV envelope sequences were detected by semi-nested PCR...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28410791/gastrointestinal-safety-of-celecoxib-versus-naproxen-in-patients-with-cardiothrombotic-diseases-and-arthritis-after-upper-gastrointestinal-bleeding-concern-an-industry-independent-double-blind-double-dummy-randomised-trial
#19
Francis K L Chan, Jessica Y L Ching, Yee Kit Tse, Kelvin Lam, Grace L H Wong, Siew C Ng, Vivian Lee, Kim W L Au, Pui Kuan Cheong, Bing Y Suen, Heyson Chan, Ka Man Kee, Angeline Lo, Vincent W S Wong, Justin C Y Wu, Moe H Kyaw
BACKGROUND: Present guidelines are conflicting for patients at high risk of both cardiovascular and gastrointestinal events who continue to require non-steroidal anti-inflammatory drugs (NSAIDs). We hypothesised that a cyclooxygenase-2-selective NSAID plus proton-pump inhibitor is superior to a non-selective NSAID plus proton-pump inhibitor for prevention of recurrent ulcer bleeding in concomitant users of aspirin with previous ulcer bleeding. METHODS: For this industry-independent, double-blind, double-dummy, randomised trial done in one academic hospital in Hong Kong, we screened patients with arthritis and cardiothrombotic diseases who were presenting with upper gastrointestinal bleeding, were on NSAIDs, and require concomitant aspirin...
April 11, 2017: Lancet
https://www.readbyqxmd.com/read/28409830/magnesium-for-treating-sickle-cell-disease
#20
REVIEW
Nan Nitra Than, Htoo Htoo Kyaw Soe, Senthil K Palaniappan, Adinegara Bl Abas, Lucia De Franceschi
BACKGROUND: Sickle cell disease is an autosomal recessive inherited haemoglobinopathy which causes painful vaso-occlusive crises due to sickle red blood cell dehydration. Vaso-occlusive crises are common painful events responsible for a variety of clinical complications; overall mortality is increased and life expectancy decreased compared to the general population. Experimental studies suggest that intravenous magnesium has proven to be well-tolerated in individuals hospitalised for the immediate relief of acute (sudden onset) painful crisis and has the potential to decrease the length of hospital stay...
April 14, 2017: Cochrane Database of Systematic Reviews
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