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https://www.readbyqxmd.com/read/28931257/morphometric-analysis-of-the-middle-clinoid-process-using-maxillofacial-computed-tomography-scans
#1
Christopher Miller, Roukoz Chamoun, David Beahm
BACKGROUND: The interest in detailed anatomy of the sella and parasellar regions has resurged recently due to the wide clinical applications of the expanded endoscopic approaches to the skull base. The middle clinoid process (MCP) is a bony structure that can affect wide endoscopic exposure of the sella and parasellar region. OBJECTIVE: To study and analyze the anatomic variations of the MCP in the general population using computed tomography scans. METHODS: A total of 150 maxillofacial computed tomography scans were reviewed to characterize the MCP...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28931236/a-molecular-assay-to-quantify-male-and-female-plasmodium-falciparum-gametocytes-results-from-2-randomized-controlled-trials-using-primaquine-for-gametocyte-clearance
#2
Will Stone, Patrick Sawa, Kjerstin Lanke, Sanna Rijpma, Robin Oriango, Maureen Nyaurah, Paul Osodo, Victor Osoti, Almahamoudou Mahamar, Halimatou Diawara, Rob Woestenenk, Wouter Graumans, Marga van de Vegte-Bolmer, John Bradley, Ingrid Chen, Joelle Brown, Giulia Siciliano, Pietro Alano, Roly Gosling, Alassane Dicko, Chris Drakeley, Teun Bousema
Background: Single low-dose primaquine (PQ) reduces Plasmodium falciparum infectivity before it impacts gametocyte density. Here, we examined the effect of PQ on gametocyte sex ratio as a possible explanation for this early sterilizing effect. Methods: Quantitative reverse-transcription polymerase chain reaction assays were developed to quantify female gametocytes (targeting Pfs25 messenger RNA [mRNA]) and male gametocytes (targeting Pf3D7_1469900 mRNA) in 2 randomized trials in Kenya and Mali, comparing dihydroartemisinin-piperaquine (DP) alone to DP with PQ...
August 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28931211/mir-337-3p-promotes-chondrocytes-proliferation-and-inhibits-apoptosis-by-regulating-pten-akt-axis-in-osteoarthritis
#3
Zhihui Huang, Naidong Zhang, Wenming Ma, Xiaoyu Dai, Jinbo Liu
BACKGROUND: Osteoarthritis (OA) is a degenerative disease of articular cartilage and its main pathological feature is cartilage destruction, but its specific pathogenesis is still debatable. The aim of this study was to explore the role of miR-337-3p in OA pathogenesis. METHODS: The expression of miR-337-3p and PTEN in osteoarthritic cartilage tissues was detected using quantitative real time PCR and western blot, respectively. The regulation of miR-337-3p on PTEN was examined by luciferase reporter gene assays...
September 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28931210/long-noncoding-rna-pcat-1-promotes-invasion-and-metastasis-via-the-mir-129-5p-hmgb1-signaling-pathway-in-hepatocellular-carcinoma
#4
Deyuan Zhang, Jinyu Cao, Qingling Zhong, Liangtao Zeng, Chang Cai, Lang Lei, Wen Zhang, Fanrong Liu
OBJECTIVE: The long non-coding RNA (lncRNA) prostate cancer-associated transcript 1(PCAT-1) has been shown to be dysregulated and exert vital roles in tumorigenesis and progression of various malignancies. However, the precise molecular mechanism in the metastasis and invasion of HCC remain unclear. METHODS: The expression levels of PCAT1 derived from human HCC tissues and cell lines were analyzed through quantitative real-time PCR. QRT-PCR was also applied to detect the expression of HMGB1 and miR-129-5p...
September 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28931118/unpacking-the-enabling-factors-for-hand-cord-and-birth-surface-hygiene-in-zanzibar-maternity-units
#5
Giorgia Gon, Said M Ali, Catriona Towriss, Catherine Kahabuka, Ali O Ali, Sue Cavill, Mohammed Dahoma, Sally Faulkner, Haji S Haji, Ibrahim Kabole, Emma Morrison, Rukaiya M Said, Amour Tajo, Yael Velleman, Susannah L Woodd, And Wendy J Graham
Recent national surveys in The United Republic of Tanzania have revealed poor standards of hygiene at birth in facilities. As more women opt for institutional delivery, improving basic hygiene becomes an essential part of preventative strategies for reducing puerperal and newborn sepsis. Our collaborative research in Zanzibar provides an in-depth picture of the state of hygiene on maternity wards to inform action. Hygiene was assessed in 2014 across all 37 facilities with a maternity unit in Zanzibar. We used a mixed methods approach, including structured and semi-structured interviews, and environmental microbiology...
October 1, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28931080/low-serum-level-of-mir-485-3p-predicts-poor-survival-in-patients-with-glioblastoma
#6
Zhi-Qiang Wang, Mei-Yin Zhang, Mei-Ling Deng, Nuo-Qing Weng, Hui-Yun Wang, Shao-Xiong Wu
MicroRNAs (miRNAs) are short noncoding RNAs that play critical roles in human malignancies and can be used as biomarkers for cancer. Until now, a number of biomarkers for prognosis of glioblastoma (GBM) have been reported in tumor tissues but only a few biomarkers in circulating fluid. Using a custom microarray, we previously identified 19 differentially expressed miRNAs in serum of patients with GBM. In this study, we investigated whether 3 of the 19 miRNAs in serum could be used as prognostic biomarkers for patients with GBM...
2017: PloS One
https://www.readbyqxmd.com/read/28931074/genetic-and-phenotypic-effects-of-chromosome-segments-introgressed-from-gossypium-barbadense-into-gossypium-hirsutum
#7
Weiwu Song, Mi Wang, Wei Su, Quanwei Lu, Xianghui Xiao, Juan Cai, Zhen Zhang, Shaoqi Li, Pengtao Li, Juwu Gong, Wankui Gong, Haihong Shang, Aiying Liu, Junwen Li, Tingting Chen, Qun Ge, Yuzhen Shi, Youlu Yuan
MBI9915 is an introgression cotton line with excellent fiber quality. It was obtained by advanced backcrossing and continuous inbreeding from an interspecific cross between the upland cotton (Gossypium hirsutum) cultivar CCRI36 as the recurrent parent and the sea island cotton (G. barbadense) cultivar Hai1, as the donor parent. To study the genetic effects of the introgressed chromosome segments in G. hirsutum, an F2 secondary segregating population of 1537 individuals was created by crossing MBI9915 and CCRI36, and an F2:3 population was created by randomly selecting 347 individuals from the F2 generation...
2017: PloS One
https://www.readbyqxmd.com/read/28931067/in-vivo-imaging-system-for-explants-analysis-a-new-approach-for-assessment-of-cell-transplantation-effects-in-large-animal-models
#8
Weronika Zarychta-Wiśniewska, Anna Burdzinska, Radosław Zagozdzon, Bartosz Dybowski, Marta Butrym, Zdzisław Gajewski, Leszek Paczek
INTRODUCTION: Despite spectacular progress in cellular transplantology, there are still many concerns about the fate of transplanted cells. More preclinical studies are needed, especially on large animal models, to bridge the translational gap between basic research and the clinic. Herein, we propose a novel approach in analysis of cell transplantation effects in large animals explants using in vivo imaging system (IVIS®) or similar equipment. MATERIAL AND METHODS: In the in vitro experiment cells labeled with fluorescent membrane dyes: DID (far red) or PKH26 (orange) were visualized with IVIS®...
2017: PloS One
https://www.readbyqxmd.com/read/28931021/zoonotic-infection-of-brazilian-primate-workers-with-new-world-simian-foamy-virus
#9
Cláudia P Muniz, Liliane T F Cavalcante, Hongwei Jia, HaoQiang Zheng, Shaohua Tang, Anderson M Augusto, Alcides Pissinatti, Luiz P Fedullo, André F Santos, Marcelo A Soares, William M Switzer
Simian foamy viruses (SFVs) are retroviruses present in nearly all nonhuman primates (NHPs), including Old World primates (OWP) and New World primates (NWP). While all confirmed human infections with SFV are from zoonotic transmissions originating from OWP, little is known about the zoonotic transmission potential of NWP SFV. We conducted a longitudinal, prospective study of 56 workers occupationally exposed to NWP in Brazil. Plasma from these workers was tested using Western blot (WB) assays containing NWP SFV antigens...
2017: PloS One
https://www.readbyqxmd.com/read/28931004/the-logic-of-the-floral-transition-reverse-engineering-the-switch-controlling-the-identity-of-lateral-organs
#10
Jean-Louis Dinh, Etienne Farcot, Charlie Hodgman
Much laboratory work has been carried out to determine the gene regulatory network (GRN) that results in plant cells becoming flowers instead of leaves. However, this also involves the spatial distribution of different cell types, and poses the question of whether alternative networks could produce the same set of observed results. This issue has been addressed here through a survey of the published intercellular distribution of expressed regulatory genes and techniques both developed and applied to Boolean network models...
September 20, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28930999/measuring-and-mapping-patterns-of-soil-erosion-and-deposition-related-to-soil-carbonate-concentrations-under-agricultural-management
#11
Robert H Erskine, Lucretia A Sherrod, Timothy R Green
Spatial patterns of soil erosion and deposition can be inferred from differences in ground elevation mapped at appropriate time increments. Such changes in elevation are related to changes in near-surface soil carbonate (CaCO3) profiles. The objective is to describe a simple conceptual model and detailed protocol for repeatable field and laboratory measurements of these quantities. Here, accurate elevation is measured using a ground-based differential global positioning system (GPS); other data acquisition methods could be applied to the same basic method...
September 12, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930974/procedure-and-key-optimization-strategies-for-an-automated-capillary-electrophoretic-based-immunoassay-method
#12
Gail M Nelson, Jenna M Guynn, Brian N Chorley
New technologies that utilize capillary-based immunoassays promise faster and more quantitative protein assessment compared to traditional immunoassays. However, similar to other antibody-based protein assays, optimization of capillary-based immunoassay parameters, such as protein concentration, antibody dilution, and exposure time is an important prerequisite to the generation of meaningful and reliable data. Measurements must fall within the linear range of the assay where changes in signal are directly proportional to changes in lysate concentration...
September 10, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930919/2017-military-supplement-mini-review-perfluorocarbons-oxygen-transport-and-microcirculation-in-low-flow-states-in-vivo-and-in-vitro-studies
#13
Ivo P Torres Filho
The in vivo study of microvascular oxygen transport requires accurate and challenging measurements of several mass transfer parameters. Although recommended, blood flow and oxygenation are typically not measured in many studies where treatments for ischemia are tested. Therefore, the aim of this communication is to briefly review cardinal aspects of oxygen transport, and the effects of perfluorocarbon treatment on blood flow and oxygenation based mostly on studies performed in our laboratory. Since physiologically relevant events in oxygen transport take place at the microvascular level, we implemented the phosphorescence quenching technique coupled with non-invasive intravital videomicroscopy for quantitative evaluation of these events in vivo...
September 19, 2017: Shock
https://www.readbyqxmd.com/read/28930865/presence-of-human-herpesvirus-6b-in-the-pancreas-of-subjects-with-and-without-type-1-diabetes
#14
Maja Ericsson, Oskar Skog
OBJECTIVES: The aims of this study were to investigate the presence of human herpesvirus 6 (HHV6) A and B in human pancreata and to search for signs of active infection in this organ of subjects with and without type 1 diabetes (T1D). METHODS: Pancreata from brain-dead organ donors with and without T1D were examined for the presence of HHV6 genomic sequences by polymerase chain reaction (PCR), transcripts by reverse transcriptase-PCR, and protein by immunohistochemistry...
September 19, 2017: Pancreas
https://www.readbyqxmd.com/read/28930832/early-central-and-peripheral-corneal-microstructural-changes-in-type-2-diabetes-mellitus-patients-identified-using-in-vivo-confocal-microscopy-a-case-control-study
#15
Jing-Hao Qu, Lei Tian, Xiao-Yu Zhang, Xu-Guang Sun
The aim of this study was to find early central and peripheral corneal microstructural changes in healthy subjects and type 2 diabetes mellitus (T2DM) patients with/without cornea fluorescein dot staining.This is a prospective case-control study of T2DM patients with/without cornea fluorescein dot staining. Age, sex, duration of diabetes, and serum glycosylated hemoglobin A1c (HbA1c) levels were recorded. Keratograph 5 M (K5 M) and in vivo confocal microscopy were performed on all subjects. The cornea was divided into 5 zones: central, superior, temporal, nasal, and inferior...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28930822/five-years-experience-on-3-4-diaminopyridine-phosphate-in-lambert-eaton-syndrome-case-reports
#16
Simona Portaro, Teresa Brizzi, Stefano Sinicropi, Alberto Cacciola, Maria Cristina De Cola, Alessia Bramanti, Demetrio Milardi, Antonino Lupica, Placido Bramanti, Antonio Toscano, Carmelo Rodolico
RATIONALE: To report our experience on 7 patients (4 males and 3 females), affected by nonparaneoplastic Lambert-Eaton myasthenic syndrome, treated with 3,4-diaminopyridine phosphate (3,4-DAPP) either alone or in combination with other immunosuppressants or steroids. PATIENT CONCERNS: Patients have been evaluated at specific timepoints (ie, baseline and last 5 year follow-up), with neurological examination, autoantibodies against presynaptic voltage-gated Cav2.1 (P/Q type) calcium ion channel (VGCC) dosage, neurophysiological evaluation focusing on the increased amplitude of the compound muscle action potential (cMAP) after maximum voluntary effort, quantitative myasthenia gravis (QMG) and activities of daily living scales, and autonomic nervous system involvement evaluation...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28930805/the-value-of-diffusion-weighted-imaging-in-combination-with-conventional-magnetic-resonance-imaging-for-improving-tumor-detection-for-early-cervical-carcinoma-treated-with-fertility-sparing-surgery
#17
Xiulei Li, Ling Wang, Yong Li, Peiji Song
OBJECTIVE: This study aimed to investigate the value of diffusion-weighted imaging (DWI) in combination with conventional magnetic resonance imaging (MRI) for improving tumor detection in young patients treated with fertility-sparing surgery because of early cervical carcinoma. METHODS: Fifty-four patients with stage Ia or Ib1 cervical carcinoma were enrolled into this study. Magnetic resonance examinations were performed for these patients using conventional MRI (including T1-weighted imaging, T2-weighted imaging, and dynamic contrast-enhanced MRI) and DWI...
September 19, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28930716/antinociceptive-effect-of-ghrelin-in-a-rat-model-of-irritable-bowel-syndrome-involves-trpv1-opioid-systems
#18
Yuqing Mao, Zhengyang Li, Kan Chen, Huafang Yu, Shaoren Zhang, Miao Jiang, Yuanhua Ma, Chunli Liang, Hongyan Liu, Huanqing Li, Qian Hua, Hao Zhou, Yonghong Sun, Xiaoming Fan
BACKGROUND/AIMS: Irritable bowel syndrome (IBS), defined as recurrent abdominal pain and changes in bowel habits, seriously affects quality of life and ability to work. Ghrelin is a brain-gut hormone, which has been reported to show antinociceptive effects in peripheral pain. We investigated the effect of ghrelin on visceral hypersensitivity and pain in a rat model of IBS. METHODS: Maternal deprivation (MD) was used to provide a stress-induced model of IBS in Wistar rats...
September 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28930669/a-highly-specific-escherichia-coli-qpcr-and-its-comparison-with-existing-methods-for-environmental-waters
#19
David I Walker, Jonathan McQuillan, Michael Taiwo, Rachel Parks, Craig A Stenton, Hywel Morgan, Matthew C Mowlem, David N Lees
The presence of Escherichia coli in environmental waters is considered as evidence of faecal contamination and is therefore commonly used as an indicator in both water quality and food safety analysis. The long period of time between sample collection and obtaining results from existing culture based methods means that contamination events may already impact public health by the time they are detected. The adoption of molecular based methods for E. coli could significantly reduce the time to detection. A new quantitative real-time PCR (qPCR) assay was developed to detect the ybbW gene sequence, which was found to be 100% exclusive and inclusive (specific and sensitive) for E...
August 25, 2017: Water Research
https://www.readbyqxmd.com/read/28930641/face-masks-and-cough-etiquette-reduce-the-cough-aerosol-concentration-of-pseudomonas-aeruginosa-in-people-with-cystic-fibrosis
#20
Michelle E Wood, Rebecca E Stockwell, Graham R Johnson, Kay A Ramsay, Laura J Sherrard, Nassib Jabbour, Emma Ballard, Peter O'Rourke, Timothy J Kidd, Claire E Wainwright, Luke D Knibbs, Peter D Sly, Lidia Morawska, Scott C Bell
RATIONALE: People with cystic fibrosis (CF) generate Pseudomonas aeruginosa in droplet nuclei during coughing. The use of surgical masks has been recommended in healthcare settings to minimise pathogen transmission between CF patients. OBJECTIVE: To determine if face masks and cough etiquette reduce viable P. aeruginosa aerosolised during cough. METHODS: Twenty-five adults with CF and chronic P. aeruginosa infection were recruited. Participants performed six talking and coughing maneuvers, with or without face masks (surgical and N95) and hand covering the mouth when coughing (cough etiquette) in an aerosol-sampling device...
September 20, 2017: American Journal of Respiratory and Critical Care Medicine
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