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https://www.readbyqxmd.com/read/29774840/widespread-treponema-pallidum-infection-in-nonhuman-primates-tanzania
#1
Idrissa S Chuma, Emmanuel K Batamuzi, D Anthony Collins, Robert D Fyumagwa, Luisa K Hallmaier-Wacker, Rudovick R Kazwala, Julius D Keyyu, Inyasi A Lejora, Iddi F Lipende, Simone Lüert, Filipa M D Paciência, Alexander Piel, Fiona A Stewart, Dietmar Zinner, Christian Roos, Sascha Knauf
We investigated Treponema pallidum infection in 8 nonhuman primate species (289 animals) in Tanzania during 2015-2017. We used a serologic treponemal test to detect antibodies against the bacterium. Infection was further confirmed from tissue samples of skin-ulcerated animals by 3 independent PCRs (polA, tp47, and TP_0619). Our findings indicate that T. pallidum infection is geographically widespread in Tanzania and occurs in several species (olive baboons, yellow baboons, vervet monkeys, and blue monkeys)...
June 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29771976/skin-disease-prevalence-study-in-schoolchildren-in-rural-c%C3%A3-te-d-ivoire-implications-for-integration-of-neglected-skin-diseases-skin-ntds
#2
Rie Roselyne Yotsu, Kouamé Kouadio, Bamba Vagamon, Konan N'guessan, Amari Jules Akpa, Aubin Yao, Julien Aké, Rigobert Abbet Abbet, Barbine Tchamba Agbor Agbor, Roger Bedimo, Norihisa Ishii, L Claire Fuller, Roderick Hay, Oriol Mitjà, Henning Drechsler, Kingsley Asiedu
BACKGROUND: Early detection of several skin-related neglected tropical diseases (skin NTDs)-including leprosy, Buruli ulcer, yaws, and scabies- may be achieved through school surveys, but such an approach has seldom been tested systematically on a large scale in endemic countries. Additionally, a better understanding of the spectrum of skin diseases and the at-risk populations to be encountered during such surveys is necessary to facilitate the process. METHODS: We performed a school skin survey for selected NTDs and the spectrum of skin diseases, among primary schoolchildren aged 5 to 15 in Côte d'Ivoire, West Africa...
May 17, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29768165/human-innate-lymphoid-cell-subsets-possess-tissue-type-based-heterogeneity-in-phenotype-and-frequency
#3
Yannick Simoni, Michael Fehlings, Henrik N Kløverpris, Naomi McGovern, Si-Lin Koo, Chiew Yee Loh, Shawn Lim, Ayako Kurioka, Joannah R Fergusson, Choong-Leong Tang, Ming Hian Kam, Koh Dennis, Tony Kiat Hon Lim, Alexander Chung Yaw Fui, Chan Weng Hoong, Jerry Kok Yen Chan, Maria Curotto de Lafaille, Sriram Narayanan, Sonia Baig, Muhammad Shabeer, Sue-Anne Ee Shiow Toh, Henry Kun Kiaang Tan, Rosslyn Anicete, Eng-Huat Tan, Angela Takano, Paul Klenerman, Alasdair Leslie, Daniel S W Tan, Iain Beehuat Tan, Florent Ginhoux, Evan W Newell
No abstract text is available yet for this article.
May 15, 2018: Immunity
https://www.readbyqxmd.com/read/29766297/ultraviolet-light-assisted-copper-oxide-nanowires-hydrogen-gas-sensor
#4
Nabihah Sihar, Teck Yaw Tiong, Chang Fu Dee, Poh Choon Ooi, Azrul Azlan Hamzah, Mohd Ambri Mohamed, Burhanuddin Yeop Majlis
We fabricated copper oxide nanowires (CuO NWs) ultraviolet (UV) light-assisted hydrogen gas sensor. The fabricated sensor shows promising sensor response behavior towards 100 ppm of H2 at room temperature and elevated temperature at 100 °C when exposed to UV light (3.0 mW/cm2 ). One hundred-cycle device stability test has been performed, and it is found that for sample elevated at 100 °C, the UV-activated sample achieved stability in the first cycle as compared to the sample without UV irradiation which needed about 10 cycles to achieve stability at the initial stage, whereas the sample tested at room temperature was able to stabilize with the aid of UV irradiation...
May 15, 2018: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29764405/urinary-iodine-concentration-and-thyroid-volume-of-pregnant-women-attending-antenatal-care-in-two-selected-hospitals-in-ashanti-region-ghana-a-comparative-cross-sectional-study
#5
Daniel Gyamfi, Yaw Amo Wiafe, Kwabena Owusu Danquah, Ernest Adankwah, Gertrude Akua Amissah, Angela Odame
BACKGROUND: Iodine deficiency is a major public health problem affecting people worldwide, particularly pregnant women. Iodine requirements increase substantially during pregnancy making pregnant women vulnerable to iodine deficiency and its disorders such as abortions, stillbirths and pregnancy goitre as well as congenital abnormalities, cretinism and mental retardation in their children. The primary aim of this study was to evaluate the prevalence of iodine deficiency and goitre among pregnant women attending antenatal sessions at two selected hospitals in Ashanti region, Ghana...
May 15, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29762176/transactional-sex-and-incident-hiv-infection-in-a-cohort-of-young-women-from-rural-south-africa-enrolled-in-hptn-068
#6
Kelly Kilburn, Meghna Ranganathan, Marie C D Stoner, James P Hughes, Catherine Macphail, Yaw Agyei, F Xavier Gomez-Olive, Kathleen Kahn, Audrey Pettifor
OBJECTIVE: In sub-Saharan Africa, young women who engage in transactional sex (the exchange of sex for money or gifts) with a male partner show an elevated risk of prevalent HIV infection. We analyse longitudinal data to estimate the association between transactional sex and HIV incidence. DESIGN: We used longitudinal data from a cohort of 2,362 HIV negative young women (aged 13-20) enrolled in a randomized controlled trial in rural, South Africa who were followed for up to 4 visits over 6 years...
May 11, 2018: AIDS
https://www.readbyqxmd.com/read/29755709/perioperative-management-of-sickle-cell-disease
#7
REVIEW
Kwame Ofori Adjepong, Folashade Otegbeye, Yaw Amoateng Adjepong
Over 30 million people worldwide have sickle cell disease (SCD). Emergent and non-emergent surgical procedures in SCD have been associated with relatively increased risks of peri-operative mortality, vaso-occlusive (painful) crisis, acute chest syndrome, post-operative infections, congestive heart failure, cerebrovascular accident and acute kidney injury. Pre-operative assessment must include a careful review of the patient's known crisis triggers, baseline hematologic profile, usual transfusion requirements, pre-existing organ dysfunction and opioid use...
2018: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/29751679/effect-of-processing-on-postprandial-glycemic-response-and-consumer-acceptability-of-lentil-containing-food-items
#8
D Dan Ramdath, Thomas M S Wolever, Yaw Chris Siow, Donna Ryland, Aileen Hawke, Carla Taylor, Peter Zahradka, Michel Aliani
The consumption of pulses is associated with many health benefits. This study assessed post-prandial blood glucose response (PPBG) and the acceptability of food items containing green lentils. In human trials we: (i) defined processing methods (boiling, pureeing, freezing, roasting, spray-drying) that preserve the PPBG-lowering feature of lentils; (ii) used an appropriate processing method to prepare lentil food items, and compared the PPBG and relative glycemic responses (RGR) of lentil and control foods; and (iii) conducted consumer acceptability of the lentil foods...
May 11, 2018: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29746615/what-is-the-best-immunization-strategy-for-protecting-african-children-against-invasive-salmonella-disease
#9
Hyon Jin Jeon, Gi Deok Pak, Justin Im, Ellis Owusu-Dabo, Yaw Adu-Sarkodie, Amy Gassama Sow, Abdramane Soura Bassiahi, Nagla Gasmelseed, Karen H Keddy, Morten Bjerregaard-Andersen, Frank Konings, Abraham Aseffa, John A Crump, Yun Chon, Robert F Breiman, Se Eun Park, Ligia Maria Cruz Espinoza, Hye Jin Seo, Jürgen May, Christian G Meyer, Jason R Andrews, Ursula Panzner, Vera von Kalckreuth, Thomas F Wierzba, Raphaël Rakotozandrindrainy, Gordon Dougan, Myron M Levine, Joachim Hombach, Jerome H Kim, John D Clemens, Stephen Baker, Florian Marks
Background: The WHO recently prequalified a typhoid conjugate vaccine (TCV), recommending its use in persons aged ≥6 months to 45 years residing in typhoid fever (TF)-endemic areas. We now need to consider how TCVs can have the greatest impact in the most vulnerable populations in Africa. Methods: The Typhoid Fever Surveillance in Africa Program (TSAP) in 10 sub-Saharan African countries included blood culture-based surveillance in febrile people presenting at healthcare-facilities originating from defined catchment areas...
May 9, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29738611/influence-of-graviceptors-stimulation-initiated-by-off-vertical-axis-rotation-on-ventilation
#10
O Kuldavletova, S Marie, P Denise, H Normand
NEW FINDINGS: What is the central question of this study? It is known that respiration is affected by graviceptors, but it remains unclear to what extent labyrinthine and non-labyrinthine graviceptors are involved in this process. What is the main finding and its importance? Our results suggest that the respiration modulation is not a result of a simple reflex arc, but that it involves a higher integration of different types of receptors with variable contribution of either type of graviceptors among subjects...
May 8, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29732534/epigenetic-loss-of-heparan-sulfate-3-o-sulfation-sensitizes-ovarian-carcinoma-to-oncogenic-signals-and-predicts-prognosis
#11
Rui-Lan Huang, Hsiang-Ju Chen, Lin-Yu Chen, Tai-Kuang Chao, Wei-Yu Lin, Phui-Ly Liew, Po-Hsuan Su, Yu-Chun Weng, Yu-Chi Wang, Chi-Chun Liao, Yaw-Wen Hsu, Hui- Chen Wang, Hung-Cheng Lai
Precision medicine requires markers for therapeutic guidance. The purpose of this study was to determine whether epithelial ovarian cancer (EOC) epigenetics can lead to the identification of biomarkers for precision medicine. Through integrative methylomics, we discovered and validated the epigenetic signature of NEFH and HS3ST2 as an independent prognostic factor for type II EOC in our dataset (n = 84), two independent methylomics datasets (total n = 467). Integrated transcriptomics dataset (n = 1147) and tissue microarrays (n = 54) of HS3ST2 also related to high-methylation statuses and the EOC prognosis...
May 7, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29723999/heading-estimation-of-robot-combine-harvesters-during-turning-maneuveres
#12
Md Mostafizar Rahman, Kazunobu Ishii
Absolute heading is an important parameter for a robot combine harvester or a robot tracked combine harvester, especially while it is turning, but due to the rapid turning of robot combine harvesters, its inertial measurement unit gives a gyro measurement bias that causes heading drift. Our research goal is to estimate the absolute heading of robot combine harvesters by compensating this gyro measurement bias during non-linear turning maneuvers. A sensor fusion method like the extended Kalman filter combined with the tracked combine harvester dynamic model and sensor measurements was used to estimate the absolute heading of a robot combine harvester...
May 1, 2018: Sensors
https://www.readbyqxmd.com/read/29720419/complex-gaze-stabilization-in-mantis-shrimp
#13
Ilse M Daly, Martin J How, Julian C Partridge, Nicholas W Roberts
Almost all animals, regardless of the anatomy of the eyes, require some level of gaze stabilization in order to see the world clearly and without blur. For the mantis shrimp, achieving gaze stabilization is unusually challenging as their eyes have an unprecedented scope for movement in all three rotational degrees of freedom: yaw, pitch and torsion. We demonstrate that the species Odontodactylus scyllarus performs stereotypical gaze stabilization in the yaw degree of rotational freedom, which is accompanied by simultaneous changes in the pitch and torsion rotation of the eye...
May 16, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29720181/multiplicity-and-molecular-epidemiology-of-plasmodium-vivax-and-plasmodium-falciparum-infections-in-east-africa
#14
Daibin Zhong, Eugenia Lo, Xiaoming Wang, Delenasaw Yewhalaw, Guofa Zhou, Harrysone E Atieli, Andrew Githeko, Elizabeth Hemming-Schroeder, Ming-Chieh Lee, Yaw Afrane, Guiyun Yan
BACKGROUND: Parasite genetic diversity and multiplicity of infection (MOI) affect clinical outcomes, response to drug treatment and naturally-acquired or vaccine-induced immunity. Traditional methods often underestimate the frequency and diversity of multiclonal infections due to technical sensitivity and specificity. Next-generation sequencing techniques provide a novel opportunity to study complexity of parasite populations and molecular epidemiology. METHODS: Symptomatic and asymptomatic Plasmodium vivax samples were collected from health centres/hospitals and schools, respectively, from 2011 to 2015 in Ethiopia...
May 2, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29710687/analysis-of-human-microcirculation-in-weightlessness-study-protocol-and-pre-study-experiments
#15
Nana-Yaw Bimpong-Buta, Peter Jirak, Bernhard Wernly, Michael Lichtenauer, Maryna Masyuk, Johanna Maria Muessig, Kristina Braun, Sema Kaya, Malte Kelm, Christian Jung
BACKGROUND: In weightlessness, alterations in organ systems have been reported. The microcirculation consists of a network of blood vessels with diameters of a few μm. It is considered the largest part of the circulatory system of the human body and essential for exchange of gas, nutrients and waste products. An investigation of the microcirculation in weightlessness seems warranted but has not yet been performed. OBJECTIVE: In this paper, we outline a study in which we will investigate the possible interrelations between weightlessness and microcirculation...
April 14, 2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29704583/precise-clamping-of-renal-artery-with-endovascular-stents-during-robotic-partial-nephrectomy-technical-hints-to-optimize-outcomes
#16
Juan D Garisto, Julien Dagenais, Yaw Nyame, Daniel Sagalovich, Riccardo Bertolo, Jihad Kaouk
No abstract text is available yet for this article.
April 25, 2018: Urology
https://www.readbyqxmd.com/read/29690929/gonococcal-sepsis-in-a-32-year-old-female-a-case-report
#17
Michael Owusu, Kwadwo Sarfo Marfo, Godfred Acheampong, Abednego Arthur, Nimako Sarpong, Justin Im, Ondari D Mogeni, Augustina Annan, Hsin-Ying Chiang, Chih-Horng Kuo, Se Eun Park, Florian Marks, Ellis Owusu-Dabo, Yaw Adu-Sarkodie
BACKGROUND: Neisseria gonorrhoeae is a Gram-negative bacterium which affects the urethra, throat, rectum and cervix of patients and often associated with sexually transmitted infections. The global epidemiology of the disease is not well characterised especially in resource constraint countries due to poor diagnostic capacity and inefficient reporting systems. Although important, little is known about the propensity of this bacterium to cause sepsis in immunocompetent individuals. CASE PRESENTATION: A 32-year-old female presented with fever and generalised malaise to a rural hospital in Ghana...
April 24, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29690539/enhanced-pedestrian-navigation-based-on-course-angle-error-estimation-using-cascaded-kalman-filters
#18
Jin Woo Song, Chan Gook Park
An enhanced pedestrian dead reckoning (PDR) based navigation algorithm, which uses two cascaded Kalman filters (TCKF) for the estimation of course angle and navigation errors, is proposed. The proposed algorithm uses a foot-mounted inertial measurement unit (IMU), waist-mounted magnetic sensors, and a zero velocity update (ZUPT) based inertial navigation technique with TCKF. The first stage filter estimates the course angle error of a human, which is closely related to the heading error of the IMU. In order to obtain the course measurements, the filter uses magnetic sensors and a position-trace based course angle...
April 21, 2018: Sensors
https://www.readbyqxmd.com/read/29689763/relationship-between-motion-sickness-susceptibility-and-vestibulo-ocular-reflex-gain-and-phase
#19
Gilles Clément, Millard F Reschke
BACKGROUND: It has been proposed that individual susceptibility to motion sickness is related to the vestibulo-ocular reflex (VOR) through the activation of the velocity storage mechanism. OBJECTIVE: We investigated whether motion sickness level was related to the gain and phase of the VOR. METHODS: VOR gain and phase were measured in 214 subjects while they rotated in yaw at 0.01 Hz, 0.02 Hz, 0.04 Hz, 0.08 Hz, and 0.16 Hz in darkness, and results were compared to the severity of symptoms the subjects experienced during subsequent tests to provoke motion sickness...
April 18, 2018: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/29688843/cost-of-medical-care-of-patients-with-advanced-serious-illness-in-singapore-compass-prospective-cohort-study-protocol
#20
Irene Teo, Ratna Singh, Chetna Malhotra, Semra Ozdemir, Rebecca A Dent, Nesaretnam Barr Kumarakulasinghe, Wee Lee Yeo, Yin Bun Cheung, Rahul Malhotra, Ravindran Kanesvaran, Alethea Chung Pheng Yee, Noreen Chan, Huei Yaw Wu, Soh Mun Chin, Hum Yin Mei Allyn, Grace Meijuan Yang, Patricia Soek Hui Neo, Nivedita V Nadkarni, Richard Harding, Eric A Finkelstein
BACKGROUND: Advanced cancer significantly impacts quality of life of patients and families as they cope with symptom burden, treatment decision-making, uncertainty and costs of treatment. In Singapore, information about the experiences of advanced cancer patients and families and the financial cost they incur for end-of-life care is lacking. Understanding of this information is needed to inform practice and policy to ensure continuity and affordability of care at the end of life. The primary objectives of the Cost of Medical Care of Patients with Advanced Serious Illness in Singapore (COMPASS) cohort study are to describe changes in quality of life and to quantify healthcare utilization and costs of patients with advanced cancer at the end of life...
April 23, 2018: BMC Cancer
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