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https://www.readbyqxmd.com/read/28820701/the-sustainable-development-goals-for-water-the-need-to-consider-perception-preference-and-safety
#1
Christine Stauber
In this month's issue, Brooks et al.(1) examine the role of organoleptic perception and its association with bacteriologic drinking water quality in the Nyanza Province of western Kenya. This study focuses on two important issues relevant for drinking water in the new Sustainable Development Goals (SDGs)(2): human sensory perception and the measures of water safety, and the need to be able to measure drinking water quality in resource limited settings. To address the lack of studies, the authors researched how household members' perception of taste, odor, or overall quality were linked to measured levels of Escherichia coli via two detection methods: IDEXX Colilert(™) Quantitray (Colilert) and the Compartment Bag Test (CBT)...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820700/rapid-detection-of-plasmodium-knowlesi-by-isothermal-recombinase-polymerase-amplification-assay
#2
Meng-Yee Lai, Choo-Huck Ooi, Yee-Ling Lau
In this study, we developed a recombinase polymerase amplification (RPA) assay for specific diagnosis of Plasmodium knowlesi. Genomic DNA was extracted from whole blood samples using a commercial kit. With incubation at 37°C, the samples were successfully amplified within 20 minutes. The end product of RPA was further examined by loading onto agarose gel and a specific band was observed with a size of 128 bp. The RPA assay exhibited high sensitivity with limits of detection down to one copy of the plasmid...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820680/creating-online-training-for-procedures-in-global-health-with-procedural-education-for-adaptation-to-resource-limited-settings
#3
Rachel S Bensman, Tina M Slusher, Sabrina M Butteris, Michael B Pitt
The authors describe a multiinstitutional collaborative project to address a gap in global health training by creating a free online platform to share a curriculum for performing procedures in resource-limited settings. This curriculum called PEARLS (Procedural Education for Adaptation to Resource-Limited Settings) consists of peer-reviewed instructional and demonstration videos describing modifications for performing common pediatric procedures in resource-limited settings. Adaptations range from the creation of a low-cost spacer for inhaled medications to a suction chamber for continued evacuation of a chest tube...
July 31, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28819645/3d-imaging-of-optically-cleared-tissue-using-a-simplified-clarity-method-and-on-chip-microscopy
#4
Yibo Zhang, Yoonjung Shin, Kevin Sung, Sam Yang, Harrison Chen, Hongda Wang, Da Teng, Yair Rivenson, Rajan P Kulkarni, Aydogan Ozcan
High-throughput sectioning and optical imaging of tissue samples using traditional immunohistochemical techniques can be costly and inaccessible in resource-limited areas. We demonstrate three-dimensional (3D) imaging and phenotyping in optically transparent tissue using lens-free holographic on-chip microscopy as a low-cost, simple, and high-throughput alternative to conventional approaches. The tissue sample is passively cleared using a simplified CLARITY method and stained using 3,3'-diaminobenzidine to target cells of interest, enabling bright-field optical imaging and 3D sectioning of thick samples...
August 2017: Science Advances
https://www.readbyqxmd.com/read/28818544/trends-in-antimicrobial-resistance-in-bloodstream-infection-isolates-at-a-large-urban-hospital-in-malawi-1998-2016-a-surveillance-study
#5
Patrick Musicha, Jennifer E Cornick, Naor Bar-Zeev, Neil French, Clemens Masesa, Brigitte Denis, Neil Kennedy, Jane Mallewa, Melita A Gordon, Chisomo L Msefula, Robert S Heyderman, Dean B Everett, Nicholas A Feasey
BACKGROUND: Bacterial bloodstream infection is a common cause of morbidity and mortality in sub-Saharan Africa, yet few facilities are able to maintain long-term surveillance. The Malawi-Liverpool-Wellcome Trust Clinical Research Programme has done sentinel surveillance of bacteraemia since 1998. We report long-term trends in bloodstream infection and antimicrobial resistance from this surveillance. METHODS: In this surveillance study, we analysed blood cultures that were routinely taken from adult and paediatric patients with fever or suspicion of sepsis admitted to Queen Elizabeth Central Hospital, Blantyre, Malawi from 1998 to 2016...
August 14, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28818162/impact-of-a-social-media-group-page-on-undergraduate-medical-physiology-learning
#6
Tania Ahmed Shakoori, Usman Mahboob, Janet Strivens, Ian Willis
OBJECTIVE: To investigate the impact of associating classroom learning of medical physiology with a Facebook group page in an all-women medical college of a conservative small city in Pakistan. STUDY DESIGN: Qualitative interpretivist study using semi-structured interviews. PLACE AND DURATION OF STUDY: Women Medical College Abbottabad, Pakistan, from March to December 2014. METHODOLOGY: Aclosed Facebook study group was established at a local medical college in Pakistan...
July 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28816436/integrated-distance-based-origami-paper-analytical-device-id-opad-for-one-step-visualized-analysis
#7
Tian Tian, Yuan An, Yiping Wu, Yanling Song, Zhi Zhu, Chaoyong James Yang
An integrated distance-based origami paper analytical device (ID-oPAD) is developed for simple, user-friendly and visual detection of targets of interest. The platform enables complete integration of target recognition, signal amplification and visual signal output, based on aptamer/invertase functionalized sepharose beads, cascaded enzymatic reactions and a 3D microfluidic paper-based analytical device with distance-based readout, respectively. The invertase-DNA conjugate is released upon target addition, after which it permeates through the cellulose and flows down into the bottom detection zone, while sepharose beads with larger size are excluded and stay in the upper zone...
August 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28815699/application-of-the-condensed-protocol-for-the-nia-aa-guidelines-for-the-neuropathologic-assessment-of-alzheimer-s-disease-in-an-academic-clinical-practice
#8
Rajnish Bharadwaj, Patrick J Cimino, Margaret E Flanagan, Caitlin S Latimer, Luis F Gonzalez-Cuyar, Gordana Juric-Sekhar, Thomas J Montine, Desiree A Marshall, C Dirk Keene
AIMS: In response to concerns regarding resource expenditures required to fully implement the 2012 NIA-AA Sponsored Guidelines for the neuropathologic assessment of Alzheimer's disease (AD), we previously developed a sensitive and cost-reducing Condensed Protocol (CP) at the University of Washington (UW) Alzheimer's Disease Research Center (ADRC) that consolidated the recommended NIA-AA protocol into fewer cassettes requiring fewer immunohistochemical stains. The CP was not designed to replace NIA-AA protocols, but instead to make the NIA-AA criteria accessible to clinical and forensic neuropathology practices where resources limit full implementation of NIA-AA guidelines...
August 16, 2017: Histopathology
https://www.readbyqxmd.com/read/28814023/representing-high-dimensional-data-to-intelligent-prostheses-and-other-wearable-assistive-robots-a-first-comparison-of-tile-coding-and-selective-kanerva-coding
#9
Jaden B Travnik, Patrick M Pilarski
Prosthetic devices have advanced in their capabilities and in the number and type of sensors included in their design. As the space of sensorimotor data available to a conventional or machine learning prosthetic control system increases in dimensionality and complexity, it becomes increasingly important that this data be represented in a useful and computationally efficient way. Well structured sensory data allows prosthetic control systems to make informed, appropriate control decisions. In this study, we explore the impact that increased sensorimotor information has on current machine learning prosthetic control approaches...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28812056/initiating-a-standardized-regional-referral-and-counter-referral-system-in-guatemala-a-mixed-methods-study
#10
Rupa Kapoor, Leslie Avendaño, Maria Antonieta Sandoval, Andrea T Cruz, Esther M Sampayo, Miguel A Soto, Elizabeth A Camp, Heather L Crouse
Background:Few data exist for referral processes in resource-limited settings. We utilized mixed-methods to evaluate the impact of a standardized algorithm and training module developed for locally identified needs in referral/counter-referral procedures between primary health centers (PHCs) and a Guatemalan referral hospital. Methods: PHC personnel and hospital physicians participated in surveys and focus groups pre-implementation and 3, 6, and 12 months post-implementation to evaluate providers' experience with the system...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/28811798/an-experience-with-mesh-versus-darn-repair-in-inguinal-hernias
#11
Gulshan Ali Memon, Syed Kashif Ali Shah, Habib-Ur-Rehman
BACKGROUND & OBJECTIVE: The inguinal hernia accounts for 50 percent in old age males. A Lichtenstein type of operation has now become the method of choice in most developed countries but in the developing world traditional simple suture repair is still in common practice in resource limited hospitals due to the scarcity and expensive nature of the commercial prosthetic mesh. Our objective was to compare the rates of complications in Lichtenstein repair to tension free Darn repair. METHODS: Ninety two male patients from 20-60 years of age reported for direct or indirect inguinal hernia with open Mesh/Lichtenstein or darn repair in emergency or electively from January 2014 to December 2015 were enrolled in this prospective randomized control trial (RCT)...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28810858/rapid-and-sensitive-detection-of-canine-distemper-virus-by-real-time-reverse-transcription-recombinase-polymerase-amplification
#12
Jianchang Wang, Jinfeng Wang, Ruiwen Li, Libing Liu, Wanzhe Yuan
BACKGROUND: Canine distemper, caused by Canine distemper virus (CDV), is a highly contagious and fatal systemic disease in free-living and captive carnivores worldwide. Recombinase polymerase amplification (RPA), as an isothermal gene amplification technique, has been explored for the molecular detection of diverse pathogens. METHODS: A real-time reverse transcription RPA (RT-RPA) assay for the detection of canine distemper virus (CDV) using primers and exo probe targeting the CDV nucleocapsid protein gene was developed...
August 15, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28810670/journey-towards-universal-viral-load-monitoring-in-maputo-mozambique-many-gaps-but-encouraging-signs
#13
Sarah Swannet, Tom Decroo, Sheila M T L de Castro, Caroline Rose, Ruggero Giuliani, Lucas Molfino, Ana W Torrens, Walter S E D Macueia, Sharon Perry, Tony Reid
Introduction: Viral load (VL) monitoring for people on antiretroviral therapy (ART) is extremely challenging in resource-limited settings. We assessed the VL testing scale-up in six Médecins Sans Frontières supported health centres in Maputo, Mozambique, during 2014-15. Methods: In a retrospective cohort study, routine programme data were used to describe VL testing uptake and results, and multi-variate logistical regression to estimate predictors of VL testing uptake and suppression...
July 1, 2017: International Health
https://www.readbyqxmd.com/read/28809928/lay-worker-administered-behavioral-treatments-for-psychological-distress-in-resource-limited-settings-time-to-move-from-evidence-to-practice
#14
Alexander C Tsai
In this Perspective on the study by Bryant and colleagues, Alex Tsai discusses the evidence supporting lay worker-administered, behavioral interventions for women survivors of interpersonal violence.
August 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28808544/flower-power-floral-and-resource-manipulations-reveal-how-and-why-reproductive-trade-offs-occur-for-lowbush-blueberry-vaccinium-angustifolium
#15
Alex W Bajcz, Francis A Drummond
Plant reproductive trade-offs are thought to be caused by resource limitations or other constraints, but more empirical support for these hypotheses would be welcome. Additionally, quantitative characterization of these trade-offs, as well as consideration of whether they are linear, could yield additional insights. We expanded our flower removal research on lowbush blueberry (Vaccinium angustifolium) to explore the nature of and causes of its reproductive trade-offs. We used fertilization, defoliation, positionally biased flower removal, and multiple flower removal levels to discern why reproductive trade-offs occur in this taxon and to plot these trade-offs along two continuous axes...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28808480/salvage-chemotherapy-for-adults-with-relapsed-or-refractory-lymphoma-in-malawi
#16
Bongani Kaimila, Toon van der Gronde, Christopher Stanley, Edwards Kasonkanji, Maria Chikasema, Blessings Tewete, Paula Fox, Satish Gopal
BACKGROUND: Lymphoma is highly associated with HIV in sub-Saharan Africa (SSA), which contributes to worse outcomes relative to resource-rich settings, and frequent failure of first-line chemotherapy. However, there are no second-line treatment descriptions for adults with relapsed or refractory lymphoma (RRL) in SSA. METHODS: We describe HIV+ and HIV- patients with RRL receiving salvage chemotherapy in Malawi. Patients were prospectively treated at a national teaching hospital in Lilongwe, with the modified EPIC regimen (etoposide, prednisolone, ifosfamide, cisplatin) between June 2013 and May 2016, after failing prior first-line chemotherapy...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28808319/ip-10-levels-as-an-accurate-screening-tool-to-detect-acute-hiv-infection-in-resource-limited-settings
#17
Lucía Pastor, Aina Casellas, Jorge Carrillo, Sergi Alonso, Erica Parker, Laura Fuente-Soro, Chenjerai Jairoce, Inacio Mandomando, Julià Blanco, Denise Naniche
Acute HIV infection (AHI) is the period prior to seroconversion characterized by high viral replication, hyper-transmission potential and commonly, non-specific febrile illness. AHI detection requires HIV-RNA viral load (VL) determination, which has very limited access in low-income countries due to restrictive costs and implementation constraints. We sought to identify a biomarker that could enable AHI diagnosis in scarce-resource settings, and to evaluate the feasibility of its implementation. HIV-seronegative adults presenting at the Manhiça District Hospital, Mozambique, with reported-fever were tested for VL...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807759/development-of-a-highly-resolved-loop-mediated-isothermal-amplification-method-to-detect-the-n526k-ftsi-mutation-of-%C3%AE-lactamase-negative-ampicillin-resistant-haemophilus-influenzae
#18
Shinsuke Tamura, Takuya Maeda, Kazuhisa Misawa, Morichika Osa, Takaaki Hamamoto, Atsushi Yuki, Kazuo Imai, Kei Mikita, Kyoko Morichika, Akihiko Kawana, Hiroshi Matsumoto, Shigeaki Nonoyama
Rapid and easy detection of sequence polymorphisms, including nucleotide point mutations of bacterial pathogens responsible for amino acid substitutions linked to drug resistance, is essential for the proper use of antimicrobial agents. Here, a detection method using loop-mediated amplification (LAMP) combined with amplification refractory mutation system (ARMS) to accurately distinguish a different single nucleotide in the target sequence was established, named ARMS-SNP LAMP. This procedure is capable of species-specific detection of a nucleotide (1578T) in the ftsI gene on Haemophilus influenzae without amplifying the sequence carrying the point mutations (T1578G/A) in β-lactamase-negative ampicillin resistant (BLNAR) strains...
August 11, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28807018/the-neglected-burden-of-snakebites-in-cameroon-a-review-of-the-epidemiology-management-and-public-health-challenges
#19
Joel Noutakdie Tochie, Mazou N Temgoua, Tsi Njim, Danwang Celestin, Ronni Tankeu, Njinkeng J Nkemngu
OBJECTIVES: Snakebite is an underestimated medical and surgical emergency in developing countries responsible for a high disease burden. Optimal management of snake envenomation in these resource-limited settings is precluded by several public health challenges. In this review, we discuss the disease burden of snakebites in Cameroon and the public health challenges of its management in view of making recommendations essential for policy-making. MEDLINE, African Journals Online and Google Scholar were searched from January 1990 to February 2017 for studies addressing snakebite in Cameroon...
August 14, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28806952/socio-cultural-contexts-of-end-of-life-conversations-and-decisions-bereaved-family-cancer-caregivers-retrospective-co-constructions
#20
Jennifer Nyawira Githaiga, Leslie Swartz
BACKGROUND: End-of-life communication becomes increasingly difficult in terminal cancer, which inevitably entails conversations around dying and death. In resource-limited areas, the context of end-of-life communication is usually home-based palliative care comprising mostly women in the family who play critical roles as informal caregivers. This article examined the content and contexts of family end-of-life conversations and decisions based on the retrospective accounts of a sample of bereaved women family cancer caregivers in Nairobi, Kenya...
August 14, 2017: BMC Palliative Care
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