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https://www.readbyqxmd.com/read/28453293/predicting-a-drug-s-membrane-permeability-a-computational-model-validated-with-in-vitro-permeability-assay-data
#1
Brian J Bennion, Nicholas A Be, Margaret Windy McNerney, Victoria Lao, Emma M Carlson, Carlos A Valdez, Michael A Malfatti, Heather A Enright, Tuan H Nguyen, Felice C Lightstone, Timothy S Carpenter
Membrane permeability is a key property to consider during the drug design process, and particularly vital when dealing with small molecules that have intracellular targets as their efficacy highly depends on their ability to cross the membrane. In this work, we describe the use of umbrella sampling Molecular Dynamics (MD) computational modeling to comprehensively assess the passive permeability profile of a range of compounds through a lipid bilayer. The model was initially calibrated through in vitro validation studies employing a Parallel Artificial Membrane Permeability Assay (PAMPA)...
April 28, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28449357/premastication-and-length-for-age-among-children-under-24%C3%A2-months-in-laos
#2
Joel Conkle, Sengchanh Kounnavong, Melissa Young, Aryeh D Stein
Premastication of infant food by caregivers is common in Laos. Premastication is hypothesized to have both positive and negative implications for children, but the net effect of premastication on child health and nutrition is largely unknown because of a lack of research. This study quantitatively describes premastication in 5 provinces of Laos and examines the associations between premastication and the length of young children. We analyzed cross-sectional data from the Laos 2015 Food and Nutrition Security Survey to characterize premastication among children under 2 years of age (n = 1,661) and to test associations between premastication and child length-for-age z-score...
April 27, 2017: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/28447455/efficiency-and-safety-of-%C3%AE-cd-d3-7-as-an-sirna-carrier-for-decreasing-mmp-9-expression-and-improving-wound-healing-in-diabetic-rats
#3
Na Li, Hengcong Luo, Meng Ren, Li-Ming Zhang, Wei Wang, Cheng Lin Pan, Liqun Yang, Guojuan Lao, Junjie Deng, Kaijin Mai, Kan Sun, Chuan Yang, Li Yan
Over-expression of MMP-9 is critical for diabetic chronic wounds involved in the refractory wound healing process. We aimed to develop a strategy through RNAi to decrease MMP-9 expression and improving diabetic wound healing. We had explored β-CD-(D3)7 as a gene carrier to take siRNA effectively interfere with MMP-9 expression. It has been proved that β-CD-(D3)7 could be used as an effective siRNA delivery system. In this study we want to know exactly about the efficiency and safety of β-CD-(D3)7/MMP-9 siRNA for improving wound healing in diabetic rats...
April 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28446751/crl4b-dcaf11-e3-ligase-targets-p21-for-degradation-to-control-cell-cycle-progression-in-human-osteosarcoma-cells
#4
Zhi Chen, Kun Wang, Canglong Hou, Kaibiao Jiang, Bin Chen, Jianwei Chen, Lifeng Lao, Lie Qian, Guibin Zhong, Zude Liu, Caiguo Zhang, Hongxing Shen
Cell cycle progression in mammals is strictly controlled by a number of cyclin-dependent kinases (CDKs) and CDK inhibitors (CKIs), the expression of which is often dysregulated in cancer cells. Our previous work revealed that Cullin 4B (CUL4B), a critical component of the Cullin4B-RING E3 ligase complex (CRL4B), is overexpressed in human osteosarcoma cells through an unknown mechanism. Here, we demonstrated that CUL4B forms an E3 ligase with RBX1 (RING-box 1), DDB1 (DNA damage binding protein 1), and DCAF11 (DDB1 and CUL4 associated factor 11) in human osteosarcoma cells...
April 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28444760/vancomycin-levels-are-frequently-subtherapeutic-in-critically-ill-patients-a-prospective-observational-study
#5
V Bakke, H Sporsem, E Von der Lippe, I Nordøy, Y Lao, H C Nyrerød, L Sandvik, K R Hårvig, J F Bugge, E Helset
BACKGROUND: Appropriate utilization of vancomycin is important to attain therapeutic targets while avoiding clinical failure and the development of antimicrobial resistance. Our aim was to observe the use of vancomycin in an intensive care population, with the main focus on achievement of therapeutic serum concentrations (15-20 mg/l) and to evaluate how this was influenced by dose regimens, use of guidelines and therapeutic drug monitoring. METHODS: A prospective observational study was carried out in the intensive care units at two tertiary hospitals in Norway...
April 25, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28443109/novel-alleles-of-phosphorus-starvation-tolerance-1-gene-pstol1-from-oryza-rufipogon-confers-high-phosphorus-uptake-efficiency
#6
Kumari Neelam, Shiwali Thakur, Neha, Inderjit S Yadav, Kishor Kumar, Salwinder S Dhaliwal, Kuldeep Singh
Limited phosphorus availability in the soil is one of the major constraints to the growth and productivity of rice across Asian, African and South American countries, where 50% of the rice is grown under rain-fed systems on poor and problematic soils. With an aim to determine novel alleles for enhanced phosphorus uptake efficiency in wild species germplasm of rice Oryza rufipogon, we investigated phosphorus uptake1 (Pup1) locus with 11 previously reported SSR markers and sequence characterized the phosphorus-starvation tolerance 1 (PSTOL1) gene...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28442388/microbial-secretion-of-lactate-enriched-oligomers-for-efficient-conversion-into-lactide-a-biological-shortcut-to-polylactide
#7
Camila Utsunomia, Ken'ichiro Matsumoto, Sakiko Date, Chiaki Hori, Seiichi Taguchi
Recently, we have succeeded in establishing the microbial platform for the secretion of lactate (LA)-based oligomers (D-LAOs), which consist of D-LA and d-3-hydroxybutyrate (d-3HB). The secretory production of D-LAOs was substantially enhanced by the supplementation of diethylene glycol (DEG), which resulted in the generation of DEG-capped oligomers at the carboxyl terminal (referred as D-LAOs-DEG). The microbial D-LAOs should be key compounds for the synthesis of lactide, an important intermediate for polylactides (PLAs) production, eliminating the costly chemo-oligomerization step in the PLA production process...
April 22, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28440043/self-sealed-bionic-long-microchannels-with-thin-wall-and-designable-nanoholes-prepared-by-line-contact-capillary-force-assembly
#8
Zhao-Xin Lao, Yan-Lei Hu, Deng Pan, Ren-Yan Wang, Chen-Chu Zhang, Jin-Cheng Ni, Bing Xu, Jia-Wen Li, Dong Wu, Jia-Ru Chu
Long microchannels with thin walls, small width, and nanoholes or irregular shaped microgaps, which are similar to capillaries or cancerous vessels, are urgently needed to simulate the physiological activities in human body. However, the fabrication of such channels remains challenging. Here, microchannels with designable holes are manufactured by combining laser printing with line-contact capillary-force assembly. Two microwalls are first printed by femtosecond laser direct-writing, and subsequently driven to collapse into a channel by the capillary force that arises in the evaporation of developer...
April 25, 2017: Small
https://www.readbyqxmd.com/read/28438218/malaria-elimination-in-lao-pdr-the-challenges-associated-with-population-mobility
#9
REVIEW
Sengchanh Kounnavong, Deyer Gopinath, Bouasy Hongvanthong, Chanthalone Khamkong, Odai Sichanthongthip
Although the Lao People's Democratic Republic (Lao PDR) is comparatively small landlocked country with patterns of both in- and out-migration, its human migration situation has been poorly studied. This is despite all of the country's 18 provinces sharing both official and unofficial border checkpoints with neighboring countries. Economic reforms in the last decade have seen a gradual increase in the promotion of foreign investment, and main towns and transportation networks have been expanding thus offering new opportunities for livelihoods and economic activities...
April 25, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28438155/the-malaria-testing-and-treatment-landscape-in-the-southern-lao-people-s-democratic-republic-pdr
#10
Saysana Phanalasy
BACKGROUND: In the context of national and regional goals to eliminate malaria by 2030, the Center for Malaria Parasitology and Entomology in the Lao PDR is implementing strategies to ensure all malaria cases are detected and appropriately treated with first-line artemisinin combination therapy, artemether-lumefantrine (AL). Timely and relevant evidence to inform policies and strategies is needed to ensure the most effective and efficient use of resources, and to accelerate progress towards elimination goals...
April 25, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28437449/insecticide-resistance-status-of-malaria-vectors-in-lao-pdr
#11
Sébastien Marcombe, Julie Bobichon, Boutsady Somphong, Nothasin Phommavan, Santi Maithaviphet, Simone Nambanya, Vincent Corbel, Paul T Brey
Knowledge on insecticide resistance in Anopheles species is a basic requirement to guide malaria vector control programs. In Lao PDR, vector control relies on insecticide residual spraying (IRS) and impregnated bed-nets (ITNs) with the use of pyrethroids. Here, the susceptibility of Anopheles species, including several malaria vectors (An. maculatus and An. minimus), to various insecticides was investigated in ten provinces of Lao PDR through a north-south transect. Bioassays were performed on field caught female mosquitoes using the standard WHO susceptibility tests with DDT (4%), deltamethrin (0...
2017: PloS One
https://www.readbyqxmd.com/read/28436821/hydrological-modeling-of-fecal-indicator-bacteria-in-a-tropical-mountain-catchment
#12
Minjeong Kim, Laurie Boithias, Kyung Hwa Cho, Norbert Silvera, Chanthamousone Thammahacksa, Keooudone Latsachack, Emma Rochelle-Newall, Oloth Sengtaheuanghoung, Alain Pierret, Yakov A Pachepsky, Olivier Ribolzi
The occurrence of pathogen bacteria in surface waters is a threat to public health worldwide. In particular, inadequate sanitation resulting in high contamination of surface water with pathogens of fecal origin is a serious issue in developing countries such as Lao P.D.R. Despite the health implications of the consumption of contaminated surface water, the environmental fate and transport of pathogens of fecal origin and their indicators (Fecal Indicator Bacteria or FIB) are still poorly known in tropical areas...
April 15, 2017: Water Research
https://www.readbyqxmd.com/read/28434994/transient-upregulation-of-nav1-6-expression-in-the-genu-of-corpus-callosum-following-middle-cerebral-artery-occlusion-in-the-rats
#13
Hongyan Zhu, Weide Lin, Yuxiao Zhao, Ziyi Wang, Wenwen Lao, Ping Kuang, Houguang Zhou
Focal ischemic stroke can lead to brain damage and cause human disability and death. Increased excitatory transmission and reduced neuronal inhibition are important pathological alterations in the cerebral ischemia, which can induce abnormal brain excitability. Nav1.6 is a key determinant of neuronal excitability in the nervous system. Here we investigate the expression of Nav1.6 at protein and mRNA levels in the rats subjected to middle cerebral artery occlusion (MCAO).Nav1.6 expression at mRNA levels in the ischemic and contralateral hemispheres of MCAO rats were persistently decreased at 6h, 12h and 24h after reperfusion compared to the sham-operated rats...
April 20, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28430610/treatment-of-hepatocellular-carcinoma-with-portal-vein-tumor-thrombus-advances-and-challenges
#14
REVIEW
Jin-Fang Jiang, Yong-Cong Lao, Bao-Hong Yuan, Jun Yin, Xin Liu, Long Chen, Jian-Hong Zhong
Portal vein tumor thrombus is a frequent, challenging complication in hepatocellular carcinoma. Hepatocellular carcinoma patients with portal vein tumor thrombus may show worse liver function, less treatment tolerance and worse prognosis than patients without portal vein tumor thrombus, and they may be at higher risk of comorbidity related to portal hypertension. Western and some Asian guidelines stratify hepatocellular carcinoma with portal vein tumor thrombus together with metastatic hepatocellular carcinoma and therefore recommend only palliative treatment with sorafenib or other systemic agents...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28427491/identification-of-a-newly-isolated-getah-virus-in-the-china-laos-border-china
#15
Yuan Yuan Li, Shi Hong Fu, Xiao Fang Guo, Wen Wen Lei, Xiao Long Li, Jing Dong Song, Lei Cao, Xiao Yan Gao, Zhi Lyu, Ying He, Huan Yu Wang, Xiao Jie Ren, Hong Ning Zhou, Gui Qin Wang, Guo Dong Liang
In this study, we isolated a virus strain (YN12031) from specimens of Armigeres subalbatus collected in the China-Laos border. BHK-21 cells infected with YN12031 exhibited an evident cytopathic effect (CPE) 32 h post-infection. The virus particles were spherical, 70 nm in diameter, and enveloped; they also featured surface fibers. Molecular genetic analysis revealed that YN12031 was closely related to alpha viruses such as Chikungunya virus and Sindbis virus, and located in the same clade as MM2021, the prototype of Getahvirus (GETV) isolated in Malaysia in 1955...
March 2017: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/28426425/the-role-of-domestic-dogs-in-the-transmission-of-zoonotic-helminthes-in-a-rural-area-of-mekong-river-basin
#16
Marcello Otake Sato, Megumi Sato, Tippayarat Yoonuan, Tiengkham Pongvongsa, Surapol Sanguankiat, Sengchanh Kounnavong, Wanna Maipanich, Yuichi Chigusa, Kazuhiko Moji, Jitra Waikagul
Dogs have been bred since ancient times for companionship, hunting, protection, shepherding and other human activities. Some canine helminth parasites can cause significant clinical diseases in humans as Opisthorchis viverrini causing cholangiocarcinoma in Southeast Asian Countries. In this study, socio-cultural questionnaire, canine parasitological analysis, necropsy, parasite molecular confirmation and dog roaming data were evaluated in Savannakhet, Lao-PDR, a typical Mekong Basin area. Dog owners comprised 48...
June 1, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28423884/integrating-market-chain-assessments-with-zoonoses-risk-analysis-in-two-cross-border-pig-value-chains-in-lao-pdr
#17
Anna Okello, Tassilo Tamino Tiemann, Phouth Inthavong, Boualam Khamlome, Ammaly Phengvilaysouk, Soukanh Keonouchanh, Chattouphone Keokhamphet, Virasack Somoulay, Kate Blaszak, Stuart Blacksell, Walter Okello, John Allen
Lao PDR's recent accession to the World Trade Organization necessitates a greater understanding of the patterns and risk of livestock production in order to better align national policy with the Agreement on the Application of Sanitary and Phytosanitary Measures. This eco-health study describes the integration of market chain and zoonoses risk analyses at two strategic cross border points between Lao PDR, Thailand and Viet Nam. Information gained from smallholder farmer/trader interviews was integrated with serological surveys for pig-associated zoonoses - including hepatitis E virus, Taenia solium and Trichinella - to identify potential linkages between disease risk and pig production and slaughter in low input systems common across the country...
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28421384/the-efficacy-of-guolin-qigong-on-the-body-mind-health-of-chinese-women-with-breast-cancer-a-randomized-controlled-trial
#18
Pei Liu, Jieshu You, Wing T Y Loo, Youzhi Sun, Yanhua He, Huiping Sit, Lei Jia, Meikuen Wong, Zhiyu Xia, Xiao Zheng, Zhiyu Wang, Neng Wang, Lixing Lao, Jianping Chen
PURPOSE: This study was to evaluate the efficacy of a complementary Chinese treatment modality Guolin-Qigong (GLQG) for patients with breast cancer on the body-mind health. METHODS: A randomized controlled clinical trial was conducted among 158 women with breast cancer. Subjects were randomized to receive GLQG (test group) versus a physical stretching program (control group) following conventional treatment for breast cancer. GLQG and stretching interventions were performed twice a week over 24 weeks...
April 18, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28420041/-18-f-nifene-test-retest-reproducibility-in-first-in-human-imaging-of-%C3%AE-4%C3%AE-2-nicotinic-acetylcholine-receptors
#19
Patrick J Lao, Tobey J Betthauser, Dana L Tudorascu, Todd E Barnhart, Ansel T Hillmer, Charles K Stone, Jogeshwar Mukherjee, Bradley T Christian
The aim of this study was to examine the suitability of [(18) F]nifene, a novel α4β2* nicotinic acetylcholine receptor (nAChR) radiotracer, for in vivo brain imaging in a first-in-human study. METHODS: Eight healthy subjects (4M,4F;21-69,44±21yrs) underwent a [(18) F]nifene PET scan (200±3.7MBq), and seven underwent a second scan within 58±31days. Regional estimates of DVR were measured using the multilinear reference tissue model (MRTM2) with the corpus callosum as reference region...
April 18, 2017: Synapse
https://www.readbyqxmd.com/read/28419196/the-need-for-outcome-studies-prior-to-large-scale-implementation-of-screening-for-anal-cancer
#20
Lao-Tzu Allan-Blitz, Jeffrey D Klausner
No abstract text is available yet for this article.
April 13, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
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