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https://www.readbyqxmd.com/read/28324975/quantification-of-peripheral-and-central-blood-pressure-variability-using-a-time-frequency-method
#1
Z Kouchaki, M Butlin, A Qasem, A P Avolio
Systolic blood pressure variability (BPV) is associated with cardiovascular events. As the beat-to-beat variation of blood pressure is due to interaction of several cardiovascular control systems operating with different response times, assessment of BPV by spectral analysis using the continuous measurement of arterial pressure in the finger is used to differentiate the contribution of these systems in regulating blood pressure. However, as baroreceptors are centrally located, this study considered applying a continuous aortic pressure signal estimated noninvasively from finger pressure for assessment of systolic BPV by a time-frequency method using Short Time Fourier Transform (STFT)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324879/quantitative-analysis-of-uveitis-macular-edema-in-multiple-sclerosis-patients-receiving-deep-posterior-sub-tenon-triamcinolone-acetonide-injection
#2
Svetlana Jovanović, Tatjana Šarenac Vulović, Filip Radotić, Zorica Tončić, Maja Živković, Nenad Petrović
AIM: We aimed to analyze the effects of adjunctive posterior sub-Tenon capsule triamcinolone acetonide injection in the treatment of intermediate uveitis macular edema in multiple sclerosis patients that could not be controlled by systemic corticosteroid medications and immunomodulators. METHODS: The study included 30 eyes of 25 patients with multiple sclerosis who received a posterior sub-Tenon injection of 40 mg/mL triamcinolone acetonide. Parameters monitored for therapy efficiency were best-corrected visual acuity, intraocular pressure, central foveal thickness (CFT), and fluorescein angiography (FA) scores...
March 22, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28324017/a-novel-selective-bombesin-receptor-subtype-3-agonist-promotes-weight-loss-in-male-diet-induced-obese-rats-with-circadian-rhythm-change
#3
Yasunori Nio, Natsu Hotta, Minoru Maruyama, Kenichi Hamagami, Toshimi Nagi, Masaaki Funata, Junichi Sakamoto, Masanori Nakakariya, Nobuyuki Amano, Tomohiro Okawa, Yasuyoshi Arikawa, Shinobu Sasaki, Shoki Okuda, Shizuo Kasai, Yugo Habata, Yasutaka Nagisa
Bombesin receptor subtype 3 (BRS-3) is an orphan G-protein-coupled receptor. Based on the obese phenotype of male BRS-3-deficient mice, BRS-3 has been considered an attractive target for obesity treatment. Here, we developed a novel selective BRS-3 agonist (Compound-A) and evaluated its anti-obesity effects. Compound-A showed anorectic effects and enhanced energy expenditure in diet-induced obese (DIO)-F344 rats. Moreover, repeated oral administration of Compound-A for 7 days resulted in a significant body weight reduction in DIO-F344 rats...
March 16, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323830/on-the-evolutionary-origins-of-equity
#4
Stéphane Debove, Nicolas Baumard, Jean-Baptiste André
Equity, defined as reward according to contribution, is considered a central aspect of human fairness in both philosophical debates and scientific research. Despite large amounts of research on the evolutionary origins of fairness, the evolutionary rationale behind equity is still unknown. Here, we investigate how equity can be understood in the context of the cooperative environment in which humans evolved. We model a population of individuals who cooperate to produce and divide a resource, and choose their cooperative partners based on how they are willing to divide the resource...
2017: PloS One
https://www.readbyqxmd.com/read/28319882/pain-characteristics-as-important-contributing-factors-to-upper-limb-dysfunctions-in-breast-cancer-survivors-at-long-term
#5
An De Groef, Mira Meeus, Tessa De Vrieze, Lore Vos, Marijke Van Kampen, Marie-Rose Christiaens, Patrick Neven, Inge Geraerts, Nele Devoogdt
PURPOSE: The aim of this study was to explore the treatment, patient, and impairment-related risk factors associated with upper limb dysfunctions in breast cancer survivors. METHODS: A cross-sectional study was performed in 274 women treated for breast cancer. The following risk factors were analysed by bivariable and multivariable analysis: 1) treatment-related variables (type of surgery, levels of lymph node dissected, radiotherapy, chemotherapy, hormone therapy and trastuzumab); 2) patient's related variables (age and Body Mass Index); 3) and finally impairment-related variables such as pain (intensity, quality and pressure hypersensitivity, signs of central sensitisation, the degree of pain catastrophizing and vigilance and awareness to pain), active ROM and upper limb strength were investigated...
March 14, 2017: Musculoskelet Sci Pract
https://www.readbyqxmd.com/read/28319589/exercise-improves-v-combining-dot-above-o-2max-and-body-composition-in-adt-treated-prostate-cancer-patients
#6
Bradley A Wall, Daniel A Galvão, Naeem Fatehee, Dennis R Taaffe, Nigel Spry, David Joseph, Jeffrey J Hebert, Robert U Newton
INTRODUCTION: Prostate cancer is the most common cancer in men and patients treated with androgen deprivation therapy (ADT) experience unfavourbale changes in body composition and associated metabolic complications, which can increase the risk of cardiovascular disease. We examined the effect of a 6-month program of aerobic and resistance exercise aimed at improving body composition and cardiorespiratory health in this population. METHODS: Ninety-seven men (43-90 years) with localized prostate cancer receiving ADT were randomized to either exercise (EX, n=50) or usual care (CON, n=47)...
March 18, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28319522/a-numerical-simulation-comparing-a-cavopulmonary-assist-device-and-va-ecmo-for-failing-fontan-support
#7
Po-Lin Hsu, Dongfang Wang, Cherry Ballard-Croft, Dawei Xiao, Joseph B Zwischenberger
A cavopulmonary assist device (CPAD) has been developed for failing Fontan support. This CPAD pumps blood from superior/inferior vena cavae to pulmonary artery. In this study, we compared failing Fontan support with CPAD versus VA ECMO in silico. A numerical lumped-parameter circulatory system model was used to simulate Fontan circulation. Failing Fontan was simulated by increased pulmonary resistance. Central venous pressure (CVP), mean pulmonary arterial pressure (mPAP), left atrial pressure (LAP), and univentricular outflow (CO) were simulated and compared to published clinical data...
March 17, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28319488/an-in-vitro-assessment-of-the-efficacy-of-various-iv-cannulas-for-the-rapid-iv-fluid-administration
#8
Mineto Kamata, Hina Walia, Mumin Hakim, Dmitry Tumin, Joseph D Tobias
OBJECTIVES: The current study prospectively evaluates the administration of fluid through commonly used vascular cannulas of various length and diameter. DESIGN: Observational, in vitro experiment. SETTING: Not applicable. SUBJECTS: No human subjects. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Fluid (500 mL) was administered via gravity flow and with pressure assistance (pressure bag set at 300 mm Hg) through various vascular cannulas including peripheral IV catheters (22 gauge, 1 inch; 20 gauge, 1...
March 17, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28318344/clinical-outcomes-of-intravitreal-preservative-free-triamcinolone-preparation-triesence%C3%A2-for-cystoid-macular-oedema-and-inflammation-in-patients-with-uveitis
#9
Laura R Steeples, Nitin Anand, Jiten Moraji, Nicholas P Jones
PURPOSE: To assess the outcomes of intravitreal benzyl alcohol-free triamcinolone acetonide suspension in uveitis-related macular oedema. METHODS: Single-center retrospective cohort study of 66 injections to 44 eyes of 40 patients. Uveitis diagnosis, systemic and local therapy, intraocular pressure (IOP), central retinal thickness (CRT), number of injections, time to re-injection and side-effects were noted during 6-months minimum follow-up. RESULTS: Sixty eight percent of eyes received a single injection...
March 20, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28317946/serum-lipid-profiles-and-dyslipidaemia-are-associated-with-retinal-microvascular-changes-in-children-and-adolescents
#10
Wei Xiao, Xinxing Guo, Xiaohu Ding, Mingguang He
The present study aims to assess the relationship between serum lipid parameters and retinal microvascular calibres in children and adolescents. A total of 950 participants aged 7 to 19 years were recruited. Central retinal arteriolar equivalent (CRAE) and central retinal venular equivalent (CRVE) were measured from digital retinal images. Serological testing was performed to obtain lipid profiles. Dyslipidaemia was defined according to the US national expert panel guideline. After adjusted for age, sex, mean arterial blood pressure, axial length, body mass index and the fellow retinal vascular calibre, no significant association was found between retinal vascular diameters and any lipid parameters (all P > 0...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28316116/water-availability-drives-signatures-of-local-adaptation-in-whitebark-pine-pinus-albicaulis-englm-across-fine-spatial-scales-of-the-lake-tahoe-basin-usa
#11
Brandon M Lind, Christopher J Friedline, Jill L Wegrzyn, Patricia E Maloney, Detlev R Vogler, David B Neale, Andrew J Eckert
Patterns of local adaptation at fine spatial scales are central to understanding how evolution proceeds, and are essential to the effective management of economically and ecologically important forest tree species. Here, we employ single and multilocus analyses of genetic data (n = 116,231 SNPs) to describe signatures of fine-scale adaptation within eight whitebark pine (Pinus albicaulis Engelm.) populations across the local extent of the environmentally heterogeneous Lake Tahoe Basin, USA. We show that despite highly shared genetic variation (FST = 0...
March 17, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28315847/effects-of-peripherally-and-centrally-applied-ghrelin-on-the-oxidative-stress-induced-by-renin-angiotensin-system-in-a-rat-model-of-renovascular-hypertension
#12
Vivian Boshra, Amr M Abbas
BACKGROUND: Renovascular hypertension (RVH) is a result of renal artery stenosis, which is commonly due to astherosclerosis. In this study, we aimed to clarify the central and peripheral effects of ghrelin on the renin-angiotensin system (RAS) in a rat model of RVH. METHODS: RVH was induced in rats by partial subdiaphragmatic aortic constriction. Experiment A was designed to assess the central effect of ghrelin via the intracerebroventricular (ICV) injection of ghrelin (5 μg/kg) or losartan (0...
March 20, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28315476/comparative-analysis-of-protein-evolution-in-the-genome-of-pre-epidemic-and-epidemic-zika-virus
#13
Arunachalam Ramaiah, Lei Dai, Deisy Contreras, Sanjeev Sinha, Ren Sun, Vaithilingaraja Arumugaswami
Zika virus (ZIKV) causes microcephaly in congenital infection, neurological disorders, and poor pregnancy outcome and no vaccine is available for use in humans or approved. Although ZIKV was first discovered in 1947, the exact mechanism of virus replication and pathogenesis remains unknown. Recent outbreaks of Zika virus in the Americas clearly suggest a human-mosquito cycle or urban cycle of transmission. Understanding the conserved and adaptive features in the evolution of ZIKV genome will provide a hint on the mechanism of ZIKV adaptation to a new cycle of transmission...
March 14, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28314626/cerebral-hemodynamic-effects-of-cheyne-stokes-respiration-in-a-patient-with-stroke
#14
R C Nogueira, R B Panerai, M J Teixeira, T G Robinson, E Bor-Seng-Shu
INTRODUCTION: Cheyne-Stokes respiration (CSR) and central sleep apnea (CSA) are common in patients with heart failure and/or stroke. We aim to describe the cerebrovascular effects of CSR during the acute phase of stroke in a heart failure patient. CASE REPORT: A 74-year-old male with previous dilated cardiomyopathy had sudden onset of right hemiparesis and aphasia. A transcranial Doppler was performed with continuous measurement of blood pressure (BP) (Finometer) and end-tidal CO2 (nasal capnography)...
March 14, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28306228/diagnosis-natural-history-and-management-in-vascular-ehlers-danlos-syndrome
#15
Peter H Byers, John Belmont, James Black, Julie De Backer, Michael Frank, Xavier Jeunemaitre, Diana Johnson, Melanie Pepin, Leema Robert, Lynn Sanders, Nigel Wheeldon
Vascular Ehlers Danlos syndrome (vEDS) is an uncommon genetic disorders characterized by arterial aneurysm, dissection and rupture, bowel rupture, and rupture of the gravid uterus. The frequency is estimated as 1/50,000-1/200,000 and results from pathogenic variants in COL3A1, which encodes the chains of type III procollagen, a major protein in vessel walls and hollow organs. Initial diagnosis depends on the recognitions of clinical features, including family history. Management is complex and requires multiple specialists who can respond to and manage the major complications...
March 2017: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
https://www.readbyqxmd.com/read/28302387/efficacy-of-transcranial-direct-current-stimulation-in-women-with-provoked-vestibulodynia
#16
Annie Morin, Guillaume Leonard, Véronique Gougeon, Marie-Pierre Cyr, Guy Waddell, Yves-André Bureau, Isabelle Girard, Mélanie Morin
BACKGROUND: Provoked vestibulodynia is a highly prevalent condition characterized by acute recurrent pain located at the vaginal entrance in response to pressure application or attempted vaginal penetration. Despite a wide variety of treatments offered to women with provoked vestibulodynia, a high proportion of women are refractory to conventional treatment. Transcranial direct-current stimulation is a non-invasive brain stimulation technique that has been shown effective for improving various chronic pain conditions...
March 13, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28302210/-risk-factors-for-neonatal-pulmonary-hemorrhage-in-the-neonatal-intensive-care-unit-of-a-municipal-hospital
#17
Jie Fan, Ming-Yan Hei, Xi-Lin Huang, Xiao-Ping Li
OBJECTIVE: To investigate the risk factors for neonatal pulmonary hemorrhage (NPH) in the neonatal intensive care unit (NICU) of a municipal hospital, and to provide a basis for the early identification and treatment of NPH. METHODS: A total of 112 neonates who were admitted to the NICU of Shaoyang Central Hospital of Hunan Province and diagnosed with NPH were enrolled as the case group. A nested case-control method was used to select, as a control group (n=224), the neonates who underwent the treatment with an assisted mechanical ventilator and did not experience pulmonary hemorrhage...
March 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28301714/formation-of-vacuum-formed-and-pressure-formed-mouthguards
#18
Fumi Mizuhashi, Kaoru Koide
BACKGROUND/AIM: The method used to form mouthguards should be carefully selected in order to obtain their full preventive benefits. The aim of this study was to examine the differences of mouthguard characteristics according to the forming methods. MATERIALS AND METHODS: Mouthguard sheets of 3.8-mm ethylene vinyl acetate were vacuum-formed and pressure-formed on a working model. The sheets were formed when heating causing them to displace 15 mm from baseline. Mouthguard thickness was measured at the labial surface of the central incisor, the buccal surface of the first molar, and the occlusal surface of the first molar...
March 16, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28299724/convection-enhanced-delivery
#19
REVIEW
A M Mehta, A M Sonabend, J N Bruce
Convection-enhanced delivery (CED) is a promising technique that generates a pressure gradient at the tip of an infusion catheter to deliver therapeutics directly through the interstitial spaces of the central nervous system. It addresses and offers solutions to many limitations of conventional techniques, allowing for delivery past the blood-brain barrier in a targeted and safe manner that can achieve therapeutic drug concentrations. CED is a broadly applicable technique that can be used to deliver a variety of therapeutic compounds for a diversity of diseases, including malignant gliomas, Parkinson's disease, and Alzheimer's disease...
March 15, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28298457/distinct-regulatory-effects-of-myeloid-cell-and-endothelial-cell-nox2-on-blood-pressure
#20
Can Martin Sag, Moritz Schnelle, Juqian Zhang, Colin E Murdoch, Sabine Kossmann, Andrea Protti, Celio X C Santos, Greta J Sawyer, Xiaohong Zhang, Heloise Mongue-Din, Daniel A Richards, Alison C Brewer, Oleksandra Prysyazhna, Lars S Maier, Philip Wenzel, Philip J Eaton, Ajay M Shah
Background -Hypertension due to increased renin angiotensin system (RAS) activation is associated with elevated reactive oxygen species (ROS) production. Previous studies implicate NADPH oxidase (Nox) proteins as important ROS sources during RAS activation, with different Nox isoforms being potentially involved. Among these, Nox2 is expressed in multiple cell types including endothelial cells, fibroblasts, immune cells and microglia. Blood pressure (BP) is regulated at central nervous system, renal and vascular levels but the cell-specific role of Nox2 in BP regulation is unknown...
March 15, 2017: Circulation
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