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https://www.readbyqxmd.com/read/29777902/chemical-characterization-and-cerebroprotective-effect-of-methanolic-root-extract-of-colebrookea-oppositifolia-in-rats
#1
Gollapalle Lakshminarayanashastry Viswanatha, Marikunte V Venkataranganna, Nunna Bheema Lingeswara Prasad, Shylaja Hanumanthappa
ETHNOPHARMACOLOGICAL RELEVANCE: Colebrookea oppositifolia Smith is one of the extensively used plants to treat neurological conditions such as epilepsy by the various ethnic communities in sub-Himalayan regions of India such as Bhoxa, Tharu and nomadic Gujjars. AIM OF THE STUDY: This study was conducted to evaluate the cerebroprotective effect of C. oppositifolia methanolic root (MeCO) extract in Wistar rats. MATERIALS AND METHODS: The MeCO was characterized for total phenolic content and later subjected for detailed liquid chromatography-mass spectrometry analysis...
May 16, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29777764/deformation-behavior-of-crystallized-mannitol-during-compression-using-a-rotary-tablet-press-simulator
#2
Nicolas Tarlier, Ian Soulairol, Noelia Sanchez-Ballester, Gilles Baylac, Adrien Aubert, Philippe Lefevre, Bernard Bataille, Tahmer Sharkawi
Mannitol is commonly used as a pharmaceutical excipient for tablets; the most widely used oral dosage form for drug delivery. For tableting, mannitol is provided in two different forms: native crystals and textured particles. In order to optimize its formulation, a good understanding of the mechanical behavior mechanism of mannitol is necessary. Thus, the aim of this study is to evaluate the deformation mechanism of native mannitol crystals presenting different particle sizes. Pharmaco-technical and compression studies were performed using mannitol with different mean diameters (160 µm, 50 µm and 25 µm)...
May 16, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29777736/edge-strength-of-cad-cam-materials
#3
Maria Pfeilschifter, Verena Preis, Michael Behr, Martin Rosentritt
OBJECTIVES: To investigate the edge force of CAD/CAM materials as a function of (a) material, (b) thickness, and (c) distance from the margin. METHODS: Materials intended for processing with CAD/CAM were investigated: eight resin composites, one resin-infiltrated ceramic, and a clinically proven lithiumdisilicate ceramic (reference). To measure edge force (that is, load to failure/crack), plates (d = 1 mm) were fixed and loaded with a Vickers diamond indenter (1 mm/min, Zwick 1446) at a distance of 0...
May 16, 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29777281/right-ventricular-systolic-function-parameters-in-hypoplastic-left-heart-syndrome
#4
S Javed Zaidi, Jamie Penk, Vivian W Cui, Supaluck Kanjanauthai, David A Roberson
Assessment of the systolic function of the right ventricle (RV) in patients with hypoplastic left heart syndrome (HLHS) is important. The asymmetric shape and heavy trabeculations make accurate assessment of RV systolic function challenging. Novel measures of RV function could be helpful in distinguishing reduced versus preserved function in HLHS and may also be worse in HLHS with preserved function compared to normal controls. These novel methods offer promise, but research and clinical applicability is hindered as no cut-off values for normal function have been established...
May 18, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29777006/in-vivo-characterization-and-quantification-of-neurofibrillary-tau-pet-radioligand-18-f-mk-6240-in-humans-from-alzheimer-s-disease-dementia-to-young-controls
#5
Tobey J Betthauser, Karly A Cody, Matthew D Zammit, Dhanabalan Murali, Alexander K Converse, Todd E Barnhart, Charles K Stone, Howard A Rowley, Sterling C Johnson, Bradley T Christian
Tau positron emission tomography (PET) imaging has potential for elucidating changes in the deposition of neuropathological tau aggregates that are occurring during the progression of Alzheimer's disease (AD). This work investigates in vivo kinetics, quantification strategies and imaging characteristics of a novel tau PET radioligand [18 F]MK-6240 in humans. Methods: Fifty-one individuals ranging from cognitively normal young controls to persons with dementia underwent T1-weighted magnetic resonance imaging (MRI), and [11 C]PiB and [18 F]MK-6240 PET imaging...
May 18, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29777003/impact-of-reference-target-region-selection-on-amyloid-pet-standard-uptake-value-ratios-in-the-phase-1b-prime-study-of-aducanumab
#6
Ping Chiao, Barry J Bedell, Brian Avants, Alex P Zijdenbos, Marilyn Grand'Maison, Paul O'Neill, John O'Gorman, Tianle Chen, Robert Koeppe
Standardized uptake value ratios (SUVRs) are commonly used to quantify tracer uptake in amyloid beta positron emission tomography (Aβ-PET). Here, we explore the impact of target and reference region of interest (ROI) selection on SUVR effect size using interventional data from the ongoing Phase Ib PRIME study (NCT01677572) of aducanumab (BIIB037) in patients with prodromal or mild Alzheimer's disease (AD). Methods: Florbetapir PET SUVR was calculated at baseline (screening) and Weeks 26 and 54 for patients randomized to placebo and each of four aducanumab doses (1, 3, 6, and 10 mg/kg), using whole cerebellum, cerebellar grey matter, cerebellar white matter, pons, and subcortical white matter as reference regions...
May 18, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29776822/the-effect-of-age-and-sex-on-the-cervical-range-of-motion-a-systematic-review-and-meta-analysis
#7
REVIEW
Fumin Pan, Rizwan Arshad, Thomas Zander, Sandra Reitmaier, Arno Schroll, Hendrik Schmidt
Cervical-flexibility examination is routinely performed in neck-pain patients. However, diagnosis of cervical-flexibility impairment requires physiological reference values, which vary widely among the population. Although there is a general understanding that the cervical range of motion (RoM) alters with age and sex, the consolidated details of these variations remain lacking. A systematic review and meta-analysis was performed to evaluate the difference of cervical RoM in different age and sex populations...
May 7, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29776539/near-infrared-emission-spectroscopy-for-rapid-compositional-analysis-of-portland-cements
#8
Jicarla Portela Rebouças, Jarbas José Rodrigues Rohwedder, Celio Pasquini
Near infrared emission spectroscopy (NIRES) has been investigated to yield a new analytical method for determination of CaO, SiO2 , Al2 O3 , Fe2 O3 , MgO, and SO3 in Portland cement samples. The analyses were accomplished by correlation of the second derivative NIRES spectra with reference elemental analyses made by X-ray Fluorescence (XRF), using Partial Least Square (PLS) regression models. Four different types of cements (type II, III, IV and V) were included in the models. The results show RMSEP from 0...
September 18, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29776455/optimization-and-validation-of-an-analytical-method-for-the-determination-of-some-trace-and-toxic-elements-in-canned-fruit-juices-using-quadrupole-inductively-coupled-plasma-mass-spectrometer
#9
Eglal R Souaya, Mona A Khorshed, Mahmoud M Ghuniem
Background: There is increasing concern about the health effects on humans due to continuous consumption of fruit juices contaminated with metals. Objective: Quadrupole inductively coupled mass spectrometry (Q-ICP-MS) was optimized, validated, and applied in routine analysis for determination of As, Pb, Cd, Sb, Hg, Cu, Zn, Fe, Al, Cr, Sn, Co, Mn, and Ni in fruit juice beverages. Methods: Several validation parameters, such as detection limits (DLs), quantification limits, linearity, accuracy, and measurement uncertainty (MU), were studied under optimized Q-ICP-MS conditions...
May 18, 2018: Journal of AOAC International
https://www.readbyqxmd.com/read/29776333/transcriptomic-analysis-of-genes-in-soybean-in-response-to-peronospora-manshurica-infection
#10
Hang Dong, Shuangfeng Shi, Chong Zhang, Sihui Zhu, Mei Li, Jie Tan, Yue Yu, Liping Lin, Shirong Jia, Xujing Wang, Yuanhua Wu, Yuhui Liu
BACKGROUND: Soybean downy mildew (SDM), caused by Peronospora manshurica (Pm), is a major fungal disease in soybean. To date, little is known regarding the defense mechanism at molecular level and how soybean plants response to Pm infection. In this study, differential gene expression in SDM-resistant (HR) and SDM-susceptible (HS) genotype was analyzed by RNA-seq to identify differentially expressed genes (DEGs) following Pm infection. RESULTS: Of a total of 55,017 genes mapped to the soybean reference genome sequences, 2581 DEGs were identified...
May 18, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29776327/utility-of-whole-genome-sequence-data-for-across-breed-genomic-prediction
#11
Biaty Raymond, Aniek C Bouwman, Chris Schrooten, Jeanine Houwing-Duistermaat, Roel F Veerkamp
BACKGROUND: Genomic prediction (GP) across breeds has so far resulted in low accuracies of the predicted genomic breeding values. Our objective was to evaluate whether using whole-genome sequence (WGS) instead of low-density markers can improve GP across breeds, especially when markers are pre-selected from a genome-wide association study (GWAS), and to test our hypothesis that many non-causal markers in WGS data have a diluting effect on accuracy of across-breed prediction. METHODS: Estimated breeding values for stature and bovine high-density (HD) genotypes were available for 595 Jersey bulls from New Zealand, 957 Holstein bulls from New Zealand and 5553 Holstein bulls from the Netherlands...
May 18, 2018: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/29775997/improved-acmg-compliant-in-silico-prediction-of-pathogenicity-for-missense-substitutions-encoded-by-tp53-variants
#12
Cristina Fortuno, Paul A James, Erin L Young, Bing Feng, Magali Olivier, Tina Pesaran, Sean V Tavtigian, Amanda B Spurdle
Clinical interpretation of germline missense variants represents a major challenge, including those in the TP53 Li-Fraumeni syndrome gene. Bioinformatic prediction is a key part of variant classification strategies. We aimed to optimize the performance of the Align-GVGD tool used for p53 missense variant prediction, and compare its performance to other bioinformatic tools (SIFT, PolyPhen-2) and ensemble methods (REVEL, BayesDel). Reference sets of assumed pathogenic and assumed benign variants were defined using functional and/or clinical data...
May 18, 2018: Human Mutation
https://www.readbyqxmd.com/read/29775979/-the-open-retromuscular-preperitoneal-mesh-repair-of-the-incisional-lateral-hernia-technique-and-results-of-a-prospective-cohort-study
#13
Friedrich-Eckart Isemer, Ulrich Dietz, Maximilian Ackermann
INTRODUCTION: Surgical approaches to flank hernias have been poorly standardised. The most demanding issues in intermuscular net insertion are the limited area in the dorsal direction and the difficulties in fixing the net to the costal arch or the iliac crest. This is why many different surgical procedures have been published. PATIENTS/MATERIAL AND METHODS: From August 2015 to October 2016, nine patients with a primary incisional lateral hernia received open retromuscular preperitoneal mesh repair...
May 18, 2018: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/29775541/molecular-characterization-and-bioactivity-of-coumarin-derivatives-from-the-fruits-of-cucumis-bisexualis
#14
Qin-Ge Ma, Rong-Rui Wei, Ming Yang, Xiao-Ying Huang, Fang Wang, Zhi-Pei Sang, Wen-Min Liu, Qing Yu
Cucumis bisexualis (Cucurbitaceae) is known as "mapao egg" or "muskmelon egg", which has been widely used as a wild melon in Chinese folk. Nine new coumarin derivatives (1-9), named 7-hydroxy-3-(4',6'-dihydroxy-5'-isopropyl-3'',3''-dimethyl-2H-chromen)-6-prenyl-2H-chromen-2-one (1), 7-hydroxy-3-(5'-prenyl-3'',3''-dimethyl-2H-chromen)-6-prenyl-2H-chromen-2-one (2), 3-(6'-hydroxy-5'-prenyl-3'',3''-dimethyl-2H-chromen)-6-prenyl-2H-chromen-2-one (3), 3-(5'-ethyl-3'',3''-dimethyl-2H-chromen)-6-prenyl-2H-chromen-2-one (4), 3-(4',6'-dihydroxy-5'-dimethylallyl-3'',3''-dimethyl-2H-chromen)-6-prenyl-2H-chromen-2-one (5), 3-[4',6'-dihydroxy-5'-(2-propenyl)-3'',3''-dimethyl-2H-chromen]-14,15-dimethyl-pyrano-chromen-2-one (6), 3-(6'-dihydroxy-5'-isopropanol-3'',3''-dimethyl-2H-chromen)-14,15-dimethyl-pyrano-chromen-2-one (7), 3-(5'-isopentenol-3'',3''-dimethyl-2H-chromen)-14,15-dimethyl-pyrano-chromen-2-one (8), 3-(4',6'-dihydroxy-5'-prenyl-3'',3''-dimethyl-2H-chromen)-14,15-dimethyl-pyrano-chromen-2-one (9), together with twelve known compounds (10-21), were isolated and identified by spectroscopic analysis and references from the active site (EtOAc soluble fraction) of the fruits of C...
May 18, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29775432/estimating-usual-dietary-in-take-from-national-health-and-nut-rition-examination-survey-data-using-the-national-cancer-institute-method
#15
Kristen A Herrick, Lauren M Rossen, Ruth Parsons, Kevin W Dodd
Dietary recommendations are intended to be met based on dietary intake over long periods, as associations between diet and health result from habitual intake, not a single eating occasion or day of intake. Measuring usual intake directly is impractical for large population-based surveys due to the respondent burden associated with reporting habitual intake over longer periods. Therefore, analytical techniques were developed to estimate usual intake using as few as 2 days of 24-hour dietary recall data. With National Health and Nutrition Examination Survey (NHANES) data, this report demonstrates how to estimate usual intake using the National Cancer Institute (NCI)...
February 2018: Vital and Health Statistics. Series 2, Data Evaluation and Methods Research
https://www.readbyqxmd.com/read/29775424/optimized-yeast-based-in-vitro-bioassay-for-determination-of-estrogenic-and-androgenic-activity-of-hydroxylated-methoxylated-metabolites-of-bdes-cbs-and-related-lipophilic-organic-pollutants
#16
Marek Roszko, Marta Kamińska, Krystyna Szymczyk, Katarzyna Piasecka-Jóźwiak, Beata Chabłowska
Persistent organic pollutants (POPs) are known to show endocrine disrupting (ED) activity, including interactions with hormone receptors. The aim of this work was to develop a bioassay applicable for evaluation of ED potency of highly lipophilic metabolites of POPs. To that end, a yeast-based bio-assay protocol was used. Estrogenic / androgenic activity of some native brominated biphenyl ethers (BDEs) / chlorinated biphenyls (CBs), and their hydroxylated / methoxylated metabolites was assessed. Since data (including potency compared to reference native hormones) obtained using different protocols vary, the possibility that yeast transforms POPs into some more potent compounds was first checked; it seems that no such transformation is important from the test applicability standpoint...
May 18, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29775081/reference-values-of-left-heart-echocardiographic-dimensions-and-mass-in-male-peri-pubertal-athletes
#17
Elena Cavarretta, Francesco Maffessanti, Fabio Sperandii, Emanuele Guerra, Federico Quaranta, Antonia Nigro, Monia Minati, Marco Rebecchi, Chiara Fossati, Leonardo Calò, Fabio Pigozzi
Background Several articles have proposed reference values in healthy paediatric subjects, but none of them has evaluated a large population of healthy trained adolescents. Design The study purpose was to establish normal echocardiographic measurements of left heart (aortic root, left atrium and left ventricular dimensions and mass) in relation to age, weight, height, body mass index, body surface area and training hours in this specific population. Methods We retrospectively evaluated 2151 consecutive, healthy, peri-pubertal athletes (100% male, mean age 12...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29775022/-establishment-of-the-characterization-of-an-adult-digits-in-noise-test-based-on-internet
#18
B E Qi, T B Zhang, X X Fu, G P Li
Objective: The aim of this study is to explore the sensitivity and specificity of the internet-based digital noise threshold (DIN) test for detecting noise-induced hearing loss, expecting to provide a rapid and effective screening tool for clinical application. Method: This study enrolled 50 adult subjects, of which 34 were normal hearing (NH), 16 patients with sensorineural hearing loss (SNHL). Pure-tone audiometry, acoustic immittance and DIN test were tested respectively. Pearson's correlation coefficient was used to analyze the correlation between NH and SNHL...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29775005/-determination-and-significance-of-serum-mpo-and-amylin-in-adult-patients-with-osahs-after-short-range-noninvasive-positive-pressure-ventilation
#19
X H Chen, P J Chen, Y Long, Q P Huang
Objective: The aim of this study to investigate the determination and significance of serum MPO and amylin in adult patients with OSAHS after short-range noninvasive positive pressure ventilation. Method: Eighty-seven OSAHS patients were divided into severe group (30 cases), moderate group (30 cases) and mild group (27 cases) according to the AHI range. Twenty-seven outpatient health persons were selected as the control group. Serum amylin and myeloperoxidase were measured by ELISA; Amyloid and myeloperoxidase were reassessed in 30 patients with severe OSAHS after 6 months of combined therapy, and the relationship between amylin, myeloperoxidase and PSG was analyzed...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774997/-the-significance-of-lymphocyte-to-monocyte-ratio-in-peripheral-blood-of-patients-with-benign-and-malignant-laryngeal-lesions
#20
D Q Wu, X S Huang
Objective: The aim of this study is to investigate the value of preoperative peripheral blood lymphocyte to monocyte ratio (LMR) in differentiating laryngeal squamous cell carcinoma (LSCC), laryngeal precancerous lesions (LPL) and laryngeal benign lesions (LBL). Method: Four hundred and five cases of laryngeal lesions diagnosed by pathology (154 cases of LSCC, 83 cases of LPL and 168 cases of LBL) were collected. LSCC group was further divided into T1 group, T2 group and T3-4 group based on T stage. The levels of neutrophils, lymphocytes, monocytes, hemoglobin, platelet and other blood indexes were measured, as well as compared the LMR, neutrophil to lymphocyte ratio (NLR) and other parameters in each group...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
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