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https://www.readbyqxmd.com/read/29684380/sustained-or-higher-levels-of-growth-factors-in-platelet-rich-plasma-during-7-day-storage
#1
Ying-Hao Wen, Wan-Ying Lin, Chi-Jui Lin, Yu-Chen Sun, Pi-Yueh Chang, Hsin-Yao Wang, Jang-Jih Lu, Wen-Lin Yeh, Tzong-Shi Chiueh
BACKGROUND: The effectiveness of platelet-rich plasma (PRP) for treating soft tissue injuries is still controversial. Most of PRPs were prepared simply by concentrating in volume and were injected right after preparation in physician offices. Neither platelet count nor growth factors were quantitated in advance. We prepared and stored leukocyte and platelet-rich plasma (L-PRP) by regular separation protocols for blood components in the blood bank. And we investigated the dynamic change of growth factors in the L-PRPs over the period of storage...
April 20, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29684306/does-sphenopalatine-ganglion-block-improve-pain-control-and-intraoperative-hemodynamics-in-children-undergoing-palatoplasty-a-randomized-controlled-trial
#2
Anantanarayanan Parameswaran, Muruganand V Ganeshmurthy, Yashoda Ashok, Manikandhan Ramanathan, Anthony F Markus, Hermann F Sailer
PURPOSE: Children undergoing cleft palate repair have pain, dysphagia, and wound irritation in the immediate postoperative phase that may compromise surgical outcomes. This trial evaluates the efficacy of the sphenopalatine ganglion block (SPGB) in optimizing intraoperative hemodynamics and postoperative analgesia in children undergoing primary palatoplasty. MATERIALS AND METHODS: The study was designed as a prospective, double-blind, randomized controlled trial comparing the use of SPGB with general anesthesia (GA) (study group) versus the use of only GA (control group)...
March 30, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29683758/asthma-copd-overlap-phenotypes-and-smoking-comparative-features-of-asthma-in-smoking-or-non-smoking-patients-with-an-incomplete-reversibility-of-airway-obstruction
#3
Louis-Philippe Boulet, Marie-Ève Boulay, Jude-Lyne Dérival, Joanne Milot, Johane Lepage, Lara Bilodeau, François Maltais
The development of COPD features, such as an incomplete reversibility of airway obstruction (IRAO), in smoking or non-smoking asthmatic patients, a condition often named Asthma-COPD Overlap (ACO), has been recognized for decades. However, there is a need to know more about the sub-phenotypes of this condition according to smoking. This study aimed at comparing the clinical, physiological and inflammatory features of smoking and non-smoking asthmatic patients exhibiting IRAO. In this cross-sectional study, patients with an IRAO with (ACO, ≥20 pack-years) or without (NS-IRAO, <5 pack-years) significant smoking history completed questionnaires about asthma control (ACQ, score 0-6, 6 = better score) and quality of life (AQLQ, score 1-7, 1 = better score) and performed expiratory flows, lung volume and carbon monoxide diffusion capacity measurements...
April 23, 2018: COPD
https://www.readbyqxmd.com/read/29683391/grape-seed-extract-supplementation-attenuates-the-blood-pressure-response-to-exercise-in-prehypertensive-men
#4
Jong-Kyung Kim, Kyung-Ae Kim, Hyun-Min Choi, Seung-Kook Park, Charles L Stebbins
We tested the hypothesis that exaggerated pressor responses observed in prehypertensive males (N = 9) during dynamic exercise are attenuated following acute dietary supplementation with grape seed extract (GSE) (i.e., a single dose). Effects of placebo and GSE (300 mg) on systolic blood pressure, diastolic blood pressure, mean arterial pressure (MAP), cardiac output (CO), stroke volume (SV), total vascular conductance (TVC), and rate × pressure product (RPP) in response to two submaximal cycling workloads (40% and 60% VO2peak ) were compared 2 h after ingestion of GSE or placebo on different days, 1 week apart...
April 23, 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29683363/cardiovascular-autonomic-response-to-orthostatic-stress-under-hypoxia-in-patients-with-spinal-cord-injury
#5
Shu-Chun Huang, Kuo-Cheng Liu, Alice M K Wong, Shih-Chieh Chang, Jong-Shyan Wang
Huang, Shu-Chun, Kuo-Cheng Liu, Alice M.K. Wong, Shih-Chieh Chang, and Jong-Shyan Wang. Cardiovascular autonomic response to orthostatic stress under hypoxia in patients with spinal cord injury. High Alt Med Biol. 00:000-000, 2018. AIMS: Determining whether systemic hypoxia aggravates the severity of autonomic cardiovascular dysfunction in orthostatic stress among patients with spinal cord injuries (SCIs). METHODS: Twenty-four male patients with chronic SCI whose neurological levels were above T6 were recruited...
April 23, 2018: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29683007/perioperative-noninvasive-cardiac-output-monitoring-in-parturients-undergoing-cesarean-delivery-with-spinal-anesthesia-and-prophylactic-phenylephrine-drip-a-prospective-observational-cohort-study
#6
Sharon Orbach-Zinger, Ilya Bizman, Shlomo Firman, Shaul Lev, Roi Gat, Eran Ashwal, Mordehay Vaturi, Eitan Razinski, Atara Davis, Anat Shmueli, Leonid A Eidelman
INTRODUCTION: Spinal anesthesia for cesarean delivery is associated with high incidence of hypotension and is most often prevented by a prophylactic phenylephrine infusion (PPI). In this study, we aimed to identify maternal hemodynamic changes both intraoperatively and postoperatively with the use of the NICaS noninvasive cardiac output monitor in healthy singleton parturients undergoing cesarean delivery (CD) with spinal anesthesia and PPI. METHODS: Healthy term women undergoing spinal anesthesia for singleton CD were enrolled...
April 22, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29682811/upregulation-of-hypothalamic-arginine-vasopressin-by-peripherally-administered-furosemide-in-transgenic-rats-expressing-arginine-vasopressin-enhanced-green-fluorescent-protein
#7
Hiromichi Ueno, Mitsuhiro Yoshimura, Kentaro Tanaka, Haruki Nishimura, Kazuaki Nishimura, Satomi Sonoda, Yasuhito Motojima, Reiko Saito, Takashi Maruyama, Tetsu Miyamoto, Ryota Serino, Masahito Tamura, Tatsushi Onaka, Yutaka Otsuji, Yoichi Ueta
Furosemide, which is used worldwide as a diuretic agent, inhibits sodium reabsorption in the Henle's loop, resulting in diuresis and natriuresis. Arginine vasopressin (AVP) is synthesized in the supraoptic nucleus (SON), paraventricular nucleus (PVN), and suprachiasmatic nucleus (SCN) of the hypothalamus. The synthesis AVP in the magnocellular neurons of SON and PVN physiologically regulated by plasma osmolality and blood volume and contributed water homeostasis by increasing water reabsorption in the collecting duct...
April 22, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29682796/phase-2a-randomized-double-blind-placebo-controlled-multicenter-parallel-group-study-of-an-h-4-r-antagonist-jnj-39758979-in-adults-with-uncontrolled-asthma
#8
Alexa P Kollmeier, Andrew Greenspan, Xie L Xu, Philip E Silkoff, Elliot Barnathan, Matthew J Loza, Jingzhi Jiang, Bei Zhou, Bin Chen, Robin L Thurmond
BACKGROUND: The effects of H4 R antagonists in preclinical asthma models support the study of antagonists of the H4 R in the treatment of asthma in humans. JNJ-39758979 is a potent and highly-selective oral H4 R antagonist. OBJECTIVE: We sought to evaluate the safety and efficacy of the H4 R-antagonist JNJ-39758979 in adult patients with uncontrolled asthma. METHODS: One hundred and fifteen eligible patients were randomly assigned to JNJ-39758979 300 mg or placebo once daily for 12 weeks in this phase 2a, double-blind, multicenter, placebo-controlled study...
April 23, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29682474/pancreaticoduodenectomy-minimizing-the-learning-curve
#9
Levan Tsamalaidze, John A Stauffer
Background: Pancreaticoduodenectomy outcomes improve as surgeon experience increases. We analyzed the outcomes of pancreaticoduodenectomy for any improvements over time to assess the learning curve. Methods: A retrospective study of patients undergoing consecutive pancreaticoduodenectomy by a single surgeon at the beginning of practice was performed. Operative factors and 90-day outcomes were examined and trends over the course of the 4-year time period were analyzed...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29682291/metformin-in-gestational-diabetes-the-offspring-follow-up-mig-tofu-body-composition-and-metabolic-outcomes-at-7-9-years-of-age
#10
Janet A Rowan, Elaine C Rush, Lindsay D Plank, Jun Lu, Victor Obolonkin, Suzette Coat, William M Hague
Objective: To compare body composition and metabolic outcomes at 7-9 years in offspring of women with gestational diabetes (GDM) randomized to metformin (±insulin) or insulin treatment during pregnancy. Research design and methods: Children were assessed at 7 years in Adelaide (n=109/181) and 9 years in Auckland (n=99/396) by anthropometry, bioimpedance analysis (BIA), dual-energy X-ray absorptiometry (DXA), magnetic resonance imaging (MRI) (n=92/99) and fasting bloods (n=82/99)...
2018: BMJ Open Diabetes Research & Care
https://www.readbyqxmd.com/read/29681997/simultaneous-segmentation-of-leukocyte-and-erythrocyte-in-microscopic-images-using-a-marker-controlled-watershed-algorithm
#11
Huisi Miao, Changyan Xiao
The density or quantity of leukocytes and erythrocytes in a unit volume of blood, which can be automatically measured through a computer-based microscopic image analysis system, is frequently considered an indicator of diseases. The segmentation of blood cells, as a basis of quantitative statistics, plays an important role in the system. However, many conventional methods must firstly distinguish blood cells into two types (i.e., leukocyte and erythrocyte) and segment them in independent procedures. In this paper, we present a marker-controlled watershed algorithm for simultaneously extracting the two types of blood cells to simplify operations and reduce computing time...
2018: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/29681883/compromised-blood-brain-barrier-integrity-is-associated-with-total-magnetic-resonance-imaging-burden-of-cerebral-small-vessel-disease
#12
Yue Li, Man Li, Long Zuo, Qinglei Shi, Wei Qin, Lei Yang, Tao Jiang, Wenli Hu
Objective: Several studies have demonstrated that compromised blood-brain barrier (BBB) integrity may play a pivotal role in the pathogenesis of individual cerebral small vessel disease (cSVD) markers, but the association between BBB permeability and total magnetic resonance imaging (MRI) cSVD burden remains unclear. This study aimed to investigate the relationship between BBB permeability and total MRI cSVD burden. Methods: Consecutive participants without symptomatic stroke history presented for physical examination were enrolled in this cross-sectional study...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29681861/coupling-langevin-dynamics-with-continuum-mechanics-exposing-the-role-of-sarcomere-stretch-activation-mechanisms-to-cardiac-function
#13
Takumi Washio, Seiryo Sugiura, Ryo Kanada, Jun-Ichi Okada, Toshiaki Hisada
High-performance computing approaches that combine molecular-scale and macroscale continuum mechanics have long been anticipated in various fields. Such approaches may enrich our understanding of the links between microscale molecular mechanisms and macroscopic properties in the continuum. However, there have been few successful examples to date owing to various difficulties associated with overcoming the large spatial (from 1 nm to 10 cm) and temporal (from 1 ns to 1 ms) gaps between the two scales. In this paper, we propose an efficient parallel scheme to couple a microscopic model using Langevin dynamics for a protein motor with a finite element continuum model of a beating heart...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29681850/-tnfrsf12a-mediated-atherosclerosis-signaling-and-inflammatory-response-as-a-common-protection-mechanism-of-shuxuening-injection-against-both-myocardial-and-cerebral-ischemia-reperfusion-injuries
#14
Ming Lyu, Ying Cui, Tiechan Zhao, Zhaochen Ning, Jie Ren, Xingpiao Jin, Guanwei Fan, Yan Zhu
Shuxuening injection (SXNI) is a widely prescribed herbal medicine of Ginkgo biloba extract (EGB) for cerebral and cardiovascular diseases in China. However, its curative effects on ischemic stroke and heart diseases and the underlying mechanisms remain unknown. Taking an integrated approach of RNA-seq and network pharmacology analysis, we compared transcriptome profiles of brain and heart ischemia reperfusion injury in C57BL/6J mice to identify common and differential target genes by SXNI. Models for myocardial ischemia reperfusion injury (MIRI) by ligating left anterior descending coronary artery (LAD) for 30 min ischemia and 24 h reperfusion and cerebral ischemia reperfusion injury (CIRI) by middle cerebral artery occlusion (MCAO) for 90 min ischemia and 24 h reperfusion were employed to identify the common mechanisms of SXNI on both cerebral and myocardial ischemia reperfusion...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29681849/danhong-injection-combined-with-t-pa-improves-thrombolytic-therapy-in-focal-embolic-stroke
#15
Min Li, Jing Zhou, Weifeng Jin, Xiaohong Li, Yuyan Zhang
Background: Hemorrhagic transformation, neurotoxicity, short treatment time windows, and other defects are considered as the major limitations for the thrombolytic therapy. This study is devoted to figure out whether Danhong injection (DHI) combined with tissue-plasminogen activator (t-PA) could extend the treatment time windows and ameliorate brain injury, hemorrhagic complication and BBB disruption after focal embolic stroke. Methods: In vitro , the combined concentrations of DHI and t-PA were added to wells reacted with plasminogen and D-Val-Leu-Lys-AMC...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29681221/observer-variability-in-ct-perfusion-parameters-in-primary-and-metastatic-tumors-in-the-lung
#16
Chaan S Ng, Wei Wei, Payel Ghosh, Ella Anderson, Delise H Herron, Adam G Chandler
PURPOSE: Evaluate observer variability in computed tomography perfusion measurements in lung tumors and assess the relative contributions of individual factors to overall variability. MATERIALS AND METHODS: Four observers independently delineated tumor and defined arterial input function region of interests (tumor region of interest and arterial input function region of interest) on each of 4 contiguous slice levels of computed tomography perfusion images (arterial input function level), in 12 computed tomography perfusion data sets containing lung tumors (>2...
January 1, 2018: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29680514/brain-blood-cerebrospinal-fluid-and-serum-biomarkers-in-schizophrenia
#17
REVIEW
Alireza Mohammadi, Ehsan Rashidi, Vahid Ghasem Amooeian
Over the last decade, finding a reliable biomarker for the early detection of schizophrenia (Scz) has been a topic of interest. The main goal of the current review is to provide a comprehensive view of the brain, blood, cerebrospinal fluid (CSF), and serum biomarkers of Scz disease. Imaging studies have demonstrated that the volumes of the corpus callosum, thalamus, hippocampal formation, subiculum, parahippocampal gyrus, superior temporal gyrus, prefrontal and orbitofrontal cortices, and amygdala-hippocampal complex were reduced in patients diagnosed with Scz...
April 13, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29680470/modelling-dynamic-changes-in-blood-flow-and-volume-in-the-cerebral-vasculature
#18
S J Payne, W K El-Bouri
The cerebral microvasculature plays a key role in the transport of blood and the delivery of nutrients to the cells that perform brain function. Although recent advances in experimental imaging techniques mean that its structure and function can be interrogated to very small length scales, allowing individual vessels to be mapped to a fraction of 1 μm, these techniques currently remain confined to animal models. In-vivo human data can only be obtained at a much coarser length scale, of order 1 mm, meaning that mathematical models of the microvasculature play a key role in interpreting flow and metabolism data...
April 19, 2018: NeuroImage
https://www.readbyqxmd.com/read/29680264/temporary-inhibition-of-the-plasminogen-activator-inhibits-periosteal-chondrogenesis-and-promotes-periosteal-osteogenesis-during-appendicular-bone-fracture-healing
#19
D Bravo, A M Josephson, V Bradaschia-Correa, M Z Wong, N L Yim, S S Neibart, S N Lee, J Huo, T Coughlin, M M Mizrahi, P Leucht
INTRODUCTION: Aminocaproic acid is approved as an anti-fibrinolytic for use in joint replacement and spinal fusion surgeries to limit perioperative blood loss. Previous animal studies have demonstrated a pro-osteogenic effect of aminocaproic acid in spine fusion models. Here, we tested if aminocaproic acid enhances appendicular bone healing and we sought to uncover the effect of aminocaproic acid on osteoprogenitor cells (OPCs) during bone regeneration. METHODS: We employed a well-established murine femur fracture model in adult C57BL/6J mice after receiving two peri-operative injections of aminocaproic acid...
April 19, 2018: Bone
https://www.readbyqxmd.com/read/29680257/measurement-of-tumor-hypoxia-in-patients-with-locally-advanced-cervical-cancer-using-positron-emission-tomography-with-18-f-fluoroazomyin-arabinoside
#20
Kathy Han, Tina Shek, Douglass Vines, Brandon Driscoll, Anthony Fyles, David Jaffray, Harald Keller, Ur Metser, Melania Pintilie, Jason Xie, Ivan Yeung, Michael Milosevic
PURPOSE: To assess cervical tumor hypoxia using the hypoxia tracer 18 F-fluoroazomycin arabinoside (18 F-FAZA) and compare different reference tissues and thresholds for quantifying tumor hypoxia. METHODS AND MATERIALS: Twenty-seven patients with cervical cancer were studied prospectively by positron emission tomography (PET) imaging with 18 F-FAZA before starting standard chemoradiation. The hypoxic volume was defined as all voxels within a tumor (T) with standardized uptake values (SUVs) greater than 3 standard deviations from the mean gluteus maximus muscle SUV value (M) or SUVs greater than 1 to 1...
March 2, 2018: International Journal of Radiation Oncology, Biology, Physics
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