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https://www.readbyqxmd.com/read/29034839/pharmacogenetics-of-angiotensin-converting-enzyme-inhibitors-in-patients-with-alzheimer-s-disease-dementia
#1
Fabricio Ferreira de Oliveira, Elizabeth Suchi Chen, Marilia Cardoso Smith, Paulo Henrique Ferreira Bertolucci
BACKGROUND: While the angiotensin-converting enzyme degrades amyloid-β, angiotensin-converting enzyme inhibitors (ACEis) may slow cognitive decline by way of cholinergic effects, by increasing brain substance P and boosting the activity of neprilysin, and by modulating glucose homeostasis and augmenting the secretion of adipokines to enhance insulin sensitivity in patients with Alzheimer's disease dementia (AD). We aimed to investigate whether ACE gene polymorphisms rs1800764 and rs4291 are associated with cognitive and functional change in patients with AD, while also taking APOE haplotypes and anti-hypertensive treatment with ACEis into account for stratification...
October 16, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/29033395/perioperative-changes-in-exhaled-nitric-oxide-during-oesophagectomy
#2
Piers Boshier, Alison Knaggs, George B Hanna, Nandor Marczin
Introduction Oesophagectomy is a major surgical procedure, associated with high rates of postoperative cardiopulmonary morbidity, that is in part due to the frequent requirement for periods of intraoperative one lung ventilation (OLV). The current pilot study aims to investigate variation in exhaled NO levels during oesophagectomy with emphasis on the response to OLV and correlation to physiological variables and clinical outcomes. Methods Breath-to-breath concentrations of NO were analysed in patients undergoing oesophagectomy at various stages of two lung ventilation...
October 16, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/29031327/respiratory-variation-in-aortic-blood-peak-velocity-and-caudal-vena-cava-diameter-can-predict-fluid-responsiveness-in-anaesthetised-and-mechanically-ventilated-dogs
#3
M Bucci, R Rabozzi, C Guglielmini, P Franci
BACKGROUND AND M&MS: Dynamic preload indices, such as systolic pressure variation (SPV), aortic flow peak velocity variation (ΔVpeak) and distensibility index of the caudal vena cava (CVCDI), are reliable indices for predicting fluid responsiveness in humans. This study aimed to investigate the ability of these indices to predict fluid response in 24 healthy dogs undergoing general anaesthesia and mechanical ventilation. Aortic flow peak velocity variation (∆Vpeak), CVCDI, and SPV were calculated before volume expansion (5mL/kg bolus of lactated Ringer's solution)...
September 2017: Veterinary Journal
https://www.readbyqxmd.com/read/29030937/changes-in-blood-volume-indicators-and-dynamic-indicators-measured-with-transpulmonary-ultrasound-velocity-during-blood-depletion-and-repletion-in-a-neonatal-swine-model
#4
Manuel Martin-Flores, Alvaro F Cisternas, Robin D Gleed
BACKGROUND: Dynamic indicators such as pulse pressure and stroke volume variations can be measured to track changes in preload during hemorrhage, and evaluate fluid therapy. However, these dynamic indicators require mechanical ventilation, and might be affected by cardiac dysrhythmias and changes in vascular tone. Blood volume indicators may offer alternatives for assessing changes in volume status. AIMS: The aims of this study were to measure changes in blood volume indicators and dynamic indicators during removal of blood in two stages and subsequent blood replacement in anesthetized, mechanically ventilated, neonatal pigs...
November 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29030403/new-blood-pressure-associated-loci-identified-in-meta-analyses-of-475%C3%A2-000-individuals
#5
Aldi T Kraja, James P Cook, Helen R Warren, Praveen Surendran, Chunyu Liu, Evangelos Evangelou, Alisa K Manning, Niels Grarup, Fotios Drenos, Xueling Sim, Albert Vernon Smith, Najaf Amin, Alexandra I F Blakemore, Jette Bork-Jensen, Ivan Brandslund, Aliki-Eleni Farmaki, Cristiano Fava, Teresa Ferreira, Karl-Heinz Herzig, Ayush Giri, Franco Giulianini, Megan L Grove, Xiuqing Guo, Sarah E Harris, Christian T Have, Aki S Havulinna, He Zhang, Marit E Jørgensen, AnneMari Käräjämäki, Charles Kooperberg, Allan Linneberg, Louis Little, Yongmei Liu, Lori L Bonnycastle, Yingchang Lu, Reedik Mägi, Anubha Mahajan, Giovanni Malerba, Riccardo E Marioni, Hao Mei, Cristina Menni, Alanna C Morrison, Sandosh Padmanabhan, Walter Palmas, Alaitz Poveda, Rainer Rauramaa, Nigel William Rayner, Muhammad Riaz, Ken Rice, Melissa A Richard, Jennifer A Smith, Lorraine Southam, Alena Stančáková, Kathleen E Stirrups, Vinicius Tragante, Tiinamaija Tuomi, Ioanna Tzoulaki, Tibor V Varga, Stefan Weiss, Andrianos M Yiorkas, Robin Young, Weihua Zhang, Michael R Barnes, Claudia P Cabrera, He Gao, Michael Boehnke, Eric Boerwinkle, John C Chambers, John M Connell, Cramer K Christensen, Rudolf A de Boer, Ian J Deary, George Dedoussis, Panos Deloukas, Anna F Dominiczak, Marcus Dörr, Roby Joehanes, Todd L Edwards, Tõnu Esko, Myriam Fornage, Nora Franceschini, Paul W Franks, Giovanni Gambaro, Leif Groop, Göran Hallmans, Torben Hansen, Caroline Hayward, Oksa Heikki, Erik Ingelsson, Jaakko Tuomilehto, Marjo-Riitta Jarvelin, Sharon L R Kardia, Fredrik Karpe, Jaspal S Kooner, Timo A Lakka, Claudia Langenberg, Lars Lind, Ruth J F Loos, Markku Laakso, Mark I McCarthy, Olle Melander, Karen L Mohlke, Andrew P Morris, Colin N A Palmer, Oluf Pedersen, Ozren Polasek, Neil R Poulter, Michael A Province, Bruce M Psaty, Paul M Ridker, Jerome I Rotter, Igor Rudan, Veikko Salomaa, Nilesh J Samani, Peter J Sever, Tea Skaaby, Jeanette M Stafford, John M Starr, Pim van der Harst, Peter van der Meer, Cornelia M van Duijn, Anne-Claire Vergnaud, Vilmundur Gudnason, Nicholas J Wareham, James G Wilson, Cristen J Willer, Daniel R Witte, Eleftheria Zeggini, Danish Saleheen, Adam S Butterworth, John Danesh, Folkert W Asselbergs, Louise V Wain, Georg B Ehret, Daniel I Chasman, Mark J Caulfield, Paul Elliott, Cecilia M Lindgren, Daniel Levy, Christopher Newton-Cheh, Patricia B Munroe, Joanna M M Howson
BACKGROUND: Genome-wide association studies have recently identified >400 loci that harbor DNA sequence variants that influence blood pressure (BP). Our earlier studies identified and validated 56 single nucleotide variants (SNVs) associated with BP from meta-analyses of exome chip genotype data. An additional 100 variants yielded suggestive evidence of association. METHODS AND RESULTS: Here, we augment the sample with 140 886 European individuals from the UK Biobank, in whom 77 of the 100 suggestive SNVs were available for association analysis with systolic BP or diastolic BP or pulse pressure...
October 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/29028933/novel-method-for-intraoperative-assessment-of-cerebral-autoregulation-by-paced-breathing
#6
N H Sperna Weiland, J Hermanides, M W Hollmann, B Preckel, W J Stok, J J van Lieshout, R V Immink
Background: Cerebral autoregulation (CA) is the mechanism that maintains constancy of cerebral blood flow (CBF) despite variations in blood pressure (BP). Patients with attenuated CA have been shown to have an increased incidence of peri-operative stroke. Studies of CA in anaesthetized subjects are rare, because a simple and non-invasive method to quantify the integrity of CA is not available. In this study, we set out to improve non-invasive quantification of CA during surgery. For this purpose, we introduce a novel method to amplify spontaneous BP fluctuations during surgery by imposing mechanical positive pressure ventilation at three different frequencies and quantify CA from the resulting BP oscillations...
October 6, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29028925/influence-of-bayesian-optimization-on-the-performance-of-propofol-target-controlled-infusion
#7
J P van den Berg, D J Eleveld, T De Smet, A V M van den Heerik, K van Amsterdam, B J Lichtenbelt, T W L Scheeren, A R Absalom, M M R F Struys
Background: Target controlled infusion (TCI) systems use population-based pharmacokinetic (PK) models that do not take into account inter-individual residual variation. This study compares the bias and inaccuracy of a population-based vs a personalized TCI propofol titration using Bayesian adaptation. Haemodynamic and hypnotic stability, and the prediction probability of alternative PK models, was studied. Methods: A double-blinded, prospective randomized controlled trial of 120 subjects undergoing cardiac surgery was conducted...
October 3, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29027398/nutritional-status-cachexia-and-anorexia-in-women-with-peritoneal-metastasis-and-intraperitoneal-chemotherapy-a-longitudinal-analysis
#8
Ziad Hilal, Günther A Rezniczek, Robert Klenke, Askin Dogan, Clemens B Tempfer
OBJECTIVE: To describe the nutritional status of women with peritoneal metastasis (PM) from recurrent ovarian, fallopian, or peritoneal cancer and to assess longitudinal variations of the cachexia-anorexia syndrome (CAS) during palliative pressurized intraperitoneal aerosol chemotherapy (PIPAC). METHODS: Nutritional assessment included body mass index (BMI), bioelectrical impedance analysis (BIA), and blood chemistry. CAS presence/absence was recorded before and during repeated cycles (1-11) of PIPAC...
November 2017: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/29025902/relative-contributions-of-systemic-hemodynamic-variables-to-cerebral-autoregulation-during-orthostatic-stress
#9
Hisao Yoshida, Jason W Hamner, Keita Ishibashi, Can Ozan Tan
Postural changes impair the ability of the cerebrovasculature to buffer against dynamic pressure fluctuations, but the mechanisms underlying this impairment have not been elucidated. We hypothesized that autoregulatory impairment may reflect the impact of static central volume shifts on hemodynamic factors other than arterial pressure (AP). In 14 young volunteers, we assessed the relation of fluctuations in cerebral blood flow (CBF) to those in AP, cardiac output, and CO2, during oscillatory lower body pressure (LBP) (±20 mmHg at 0...
October 12, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29019580/effects-of-local-pressure-on-cutaneous-blood-flow-in-pigs
#10
Michel Luciano Holger Toledano Vaena, João Paulo Sinnecker, Bruno Benedetti Pinto, Mario Fritsch Toros Neves, Fernando Serra-Guimarães, Ruy Garcia Marques
OBJECTIVE: to evaluate the effects of increasing pressures on the cutaneous blood flow in the skin of pigs. METHODS: we conducted an experimental study in pigs submitted to subcutaneous magnetic implants (n=30). After healing, were applied external magnets with varying magnetic forces to the skin, generating compression. We evaluated the cutaneous circulation of the skin under compression by the Laser Speckle Contrast Imaging (LSCI) technique. We measured the depth of the implants by ultrasonography, and applied computational simulations to the calculation of the different pressure values, considering the different distances between implants and external magnets...
September 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28992284/plasma-homocysteine-levels-are-associated-with-circadian-blood-pressure-variation-in-chinese-hypertensive-adults
#11
Yi-Fei Dong, Bi-Ming Zhan, Qing-Yun Hao, Zhao-Hui Ruan, Zi-Xuan Xu, Ming Deng, Da-Wei Chen, Ye-Qing Zou, Jing Chen, Ping Li, Xiao-Shu Cheng
BACKGROUND: Homocysteine-lowering intervention with folate was recently shown to be able to increase day-night difference of blood pressure (BP) in humans indicating a potential relationship between homocysteine and circadian BP variation. We thus sought to investigate the association between plasma total homocysteine level (tHcy) and circadian BP variation in hypertensive adults. METHODS: We enrolled 244 eligible dipping and 249 nondipping BP status adults from 560 adults who were randomly sampled from 5,233 Chinese hypertensive adults who received ambulatory BP monitoring (ABPM)...
July 11, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28991604/comparisons-of-cardiometabolic-biomarkers-lifestyle-behaviors-and-dietary-sodium-and-potassium-intake-in-a-representative-sample-of-korean-adults-with-and-without-cardio-cerebrovascular-diseases
#12
JinShil Kim, Eunok Park
PURPOSE: To compare the cardiometabolic condition of obesity, blood pressure (BP), cholesterol, dietary sodium and potassium intake, and lifestyle behaviors of persons with cardio-cerebrovascular diseases, with those who are disease-free in Korea. METHODS: A secondary data analysis was conducted using a representative sample of Korean adults. RESULTS: Of 10,906 Korean adults (mean age 43.12 ± 0.24 years, women 50.4%), 9,074 were disease-free and 1,520 had hypertension, 137 stroke, and 175 ischemic heart disease...
September 2017: Asian Nursing Research
https://www.readbyqxmd.com/read/28990592/maternal-and-fetal-genetic-contribution-to-gestational-weight-gain
#13
N M Warrington, R Richmond, B Fenstra, R Myhre, R Gaillard, L Paternoster, C A Wang, R N Beaumont, S Das, M Murcia, S J Barton, A Espinosa, E Thiering, M Atalay, N Pitkänen, I Ntalla, A E Jonsson, R Freathy, V Karhunen, C M T Tiesler, C Allard, A Crawford, S M Ring, M Melbye, P Magnus, F Rivadeneira, L Skotte, T Hansen, J Marsh, M Guxens, J W Holloway, H Grallert, V W V Jaddoe, W L Lowe, T Roumeliotaki, A T Hattersley, V Lindi, K Pahkala, K Panoutsopoulou, M Standl, C Flexeder, L Bouchard, E A Nohr, L S Marina, M Kogevinas, H Niinikoski, G Dedoussis, J Heinrich, R M Reynolds, T Lakka, E Zeggini, O T Raitakari, L Chatzi, H M Inskip, M Bustamante, M-F Hivert, M-R Jarvelin, T I A Sørensen, C Pennell, J F Felix, B Jacobsson, F Geller, D M Evans, D A Lawlor
BACKGROUND: Clinical recommendations to limit gestational weight gain (GWG) imply high GWG is causally related to adverse outcomes in mother or offspring, but GWG is the sum of several inter-related complex phenotypes (maternal fat deposition and vascular expansion, placenta, amniotic fluid and fetal growth). Understanding the genetic contribution to GWG could help clarify the potential effect of its different components on maternal and offspring health. Here we explore the genetic contribution to total, early and late GWG...
October 9, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28985328/blood-pressure-variability-predicts-adverse-events-and-cardiovascular-outcomes-in-chronic-kidney-disease-a-post-hoc-analysis-of-the-sprint-trial
#14
Kenechukwu Mezue, Abhinav Goyal, Gregg S Pressman, Jay C Horrow, Janani Rangaswami
BACKGROUND: Visit-to-visit blood pressure variability has been associated with adverse cardiovascular outcomes. Using the SPRINT trial data set, we explored the relationship between blood pressure variability, cardiovascular outcomes, and hypoperfusion-related adverse events of antihypertensive therapy in patients with chronic kidney disease (CKD) enrolled in the study. METHODS: The analyses included patients with CKD randomized in SPRINT who reached the target systolic blood pressure for their respective groups (intensive <120 mm Hg; standard <140 mm Hg)...
July 31, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28983659/cardiac-and-peripheral-vasomotor-autonomic-functions-in-late-onset-transthyretin-val30met-familial-amyloid-polyneuropathy
#15
Haruki Koike, Tomohiko Nakamura, Atsushi Hashizume, Ryoji Nishi, Shohei Ikeda, Yuichi Kawagashira, Masahiro Iijima, Masahisa Katsuno, Gen Sobue
The objective of this study was to systematically investigate cardiac and peripheral vasomotor autonomic functions in late-onset transthyretin Val30Met familial amyloid polyneuropathy (FAP ATTR Val30Met) patients from non-endemic areas. The coefficient of variation of R-R intervals (CVR-R), responses to the Valsalva manoeuvre, head-up tilt test with impedance cardiography, noradrenaline infusion test, and (123)I-metaiodobenzylguanidine (MIBG) myocardial scintigraphy were assessed in eight patients. Although only four patients manifested orthostatic hypotension during the head-up tilt test, CVR-R, responses to the Valsalva manoeuvre, and myocardial MIBG uptake indicated a higher prevalence of cardiac sympathetic and parasympathetic dysfunction...
October 5, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28982675/genetic-control-of-serum-marinobufagenin-in-the-spontaneously-hypertensive-rat-and-the-relationship-to-blood-pressure
#16
Renata I Dmitrieva, Stacy M Cranford, Peter A Doris
BACKGROUND: We have investigated serum levels of immunoreactive marinobufagenin (MBG) in 16- to 20-week-old spontaneously hypertensive rats (SHRs)-A3 and in the normotensive Wistar-Kyoto (WKY) rat strain in the absence of salt loading, and we have investigated the genetic control of serum MBG. METHODS AND RESULTS: We genotyped the F2 progeny of an SHR-A3×WKY intercross using a genome-wide panel of 253 single-nucleotide polymorphism markers that were dimorphic between SHR-A3 and WKY and measured serum MBG by ELISA...
October 5, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28981572/spinal-anaesthesia-in-neonates-and-infants-what-about-the-cerebral-oxygen-saturation
#17
C Sola, L Hertz, S Bringuier, P De La Arena, C Macq, S Deziel-Malouin, O Raux, C Dadure
Background: Spinal Anaesthesia (SA) has been firmly established as an efficient and safe technique, with minimal cardio-respiratory disturbance when administered in the neonatal period. Our objective was to assess the haemodynamic consequences of SA in infants, particularly its impact on cerebral perfusion using near-infrared spectroscopy (NIRS)-based cerebral oximetry (r S c O2 ). Methods: All infants up to 60 weeks' postmenstrual age, whether formerly preterm or not, and undergoing spinal anaesthesia, were enrolled...
July 19, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28974567/relative-and-combined-prognostic-importance-of-on-treatment-mean-and-visit-to-visit-blood-pressure-variability-in-ontarget-and-transcend-patients
#18
Giuseppe Mancia, Helmut Schumacher, Michael Böhm, Josep Redon, Roland E Schmieder, Paolo Verdecchia, Peter Sleight, Koon Teo, Salim Yusuf
In 28 790 patients recruited for the ONTARGET (Ongoing Treatment Alone and in Combination With Ramipril Global End Point Trials) and TRANSCEND (Telmisartan Randomized Assessment Study in ACE Intolerant Subjects With Cardiovascular Disease) trials, we investigated the prognostic value for cardiovascular events (primary outcome) of (1)on-treatment visit-to-visit systolic blood pressure (SBP) variability versus mean SBP and (2) the 2 measures together. SBP variability was measured by the coefficient of variation (CV) of mean SBP to which it was unrelated...
October 3, 2017: Hypertension
https://www.readbyqxmd.com/read/28969913/genetic-predisposition-to-bevacizumab-induced-hypertension
#19
Melissa K Frey, Fanny Dao, Narciso Olvera, Jason A Konner, Maura N Dickler, Douglas A Levine
OBJECTIVE: Bevacizumab, a monoclonal antibody to VEGF, has shown efficacy in ovarian, cervical and endometrial cancer in addition to several other solid tumors. Serious side effects include hypertension, proteinuria, bowel perforation, and thrombosis. We tested the hypothesis that genetic variation in hypertension-associated genes is associated with bevacizumab-induced hypertension (BIH). METHODS: Patients with solid tumors treated with bevacizumab in combination with other therapy were identified from six clinical trials...
September 29, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28969245/effect-of-different-dosages-of-intravenous-midazolam-premedication-on-patients-undergoing-head-and-neck-surgeries-a-double-blinded-randomized-controlled-study
#20
Roshni Gupta, Neeta Santha, Madhusudan Upadya, Jesni Joseph Manissery
INTRODUCTION: Benzodiazepines primarily acts on the central nervous system. Most patients are extremely anxious in the pre-operative period. Excessive anxiety adversely influences anaesthetic induction and often leads to functional impairment and poor recovery after surgery. AIM: To determine whether amnesia, anxiety, sedation and cardio respiratory symptoms are affected while administering two different doses of intravenous midazolam (0.02 mg/kg & 0.06 mg/kg). MATERIALS AND METHODS: Two forty patients posted for head and neck surgeries were involved in this double blinded prospective randomised controlled trial...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
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