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https://www.readbyqxmd.com/read/29473380/longitudinal-prospective-observational-type-study-about-determinants-of-renal-resistive-index-variations-in-chronic-renal-failure-patients-treated-with-conventional-medical-and-dietetic-therapy
#1
Simone Brardi, Gabriele Cevenini, Vanni Giovannelli, Giuseppe Romano
OBJECTIVE: This longitudinal prospective observational type study was conceived with the aim to examine the impact on renal resistive index (RRI) of the variables that we can manipulate with therapeutic and or dietetic interventions in a chronic kidney disease population in order to known which of these variables was statistically related to changes in RRI and therefore could become the object of the greatest therapeutic effort. MATERIAL AND METHODS: This study was undertaken between May 2016 to May 2017 in the outpatient nephrology and urology clinic of San Donato Hospital in Arezzo...
December 31, 2017: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/29473321/reliability-of-autonomic-and-vascular-components-of-baroreflex-sensitivity-in-adolescents
#2
Ricardo S Oliveira, Alan R Barker, Florian Debras, Alexandra O'Doherty, Craig A Williams
Improvements in the autonomic and vascular systems are implicated in cardiovascular disease risk reduction. Baroreflex sensitivity (BRS) is composed of vascular and autonomic components. This study aimed to investigate between- and within-day reliability of BRS and its autonomic and vascular determinants in adolescents. Thirteen male adolescents (14·1 ± 0·5 y) participated in this study. For between-day reliability, participants completed four experimental visits separated by a minimum of 48-h. For within-day reliability, participants repeated BRS assessments three times in the morning with one hour between the measures...
February 23, 2018: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29470987/angiotensin-ii-regulates-dosing-time-dependent-intratumoral-accumulation-of-macromolecular-drug-formulations-via-24-h-blood-pressure-rhythm-in-tumor-bearing-mice
#3
Takashi Matsunaga, Naoya Matsunaga, Naoki Kusunose, Eriko Ikeda, Hiroyuki Okazaki, Keisuke Kakimoto, Kengo Hamamura, Satoru Koyanagi, Shigehiro Ohdo
One approach to increasing pharmacotherapy effects is administering drugs at times of day when they are most effective and/or best tolerated. Circadian variation in expression of pharmacokinetics- and pharmacodynamics-related genes was shown to contribute to dosing time-dependent differences in therapeutic effects of small molecule drugs. However, influence of dosing time of day on effects of high molecular weight formulations, such as drugs encapsulated in liposomes, has not been studied in detail. This study demonstrates that blood pressure rhythm affects dosing time-dependent variation in effects of high molecular weight formulations...
February 19, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29465710/blood-pressure-variability-increases-with-advancing-chronic-kidney-disease-stage-a-cross-sectional-analysis-of-16-546-hypertensive-patients
#4
Pantelis A Sarafidis, Luis M Ruilope, Charalampos Loutradis, Manuel Gorostidi, Alejandro de la Sierra, Juan J de la Cruz, Ernest Vinyoles, Juan A Divisón-Garrote, Julián Segura, José R Banegas
OBJECTIVE: Increased BP-variability predicts cardiovascular morbidity and mortality in hypertensives. This study aimed to examine short-term BP-variability according to renal function stage. METHODS: We included 16 546 patients [10 270 (62.1%) without/6276 (38.9%) with CKD Stage 1-5] from the Spanish Ambulatory-Blood-Pressure Monitoring (ABPM) Registry. Stages of CKD were defined according to K/DIGO criteria, based on estimated glomerular filtration rate calculated with the CKD-EPI equation and albumin-to-creatine ratio...
February 20, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29464883/high-intensity-interval-training-improves-acute-plasma-volume-responses-to-exercise-that-is-age-dependent
#5
Georges Jabbour, Horia-Daniel Iancu, Hassane Zouhal, Pascale Mauriège, Denis R Joanisse, Luc J Martin
Plasma volume (PV) is affected by several factors including age, physical training and, acutely, by exercise intensity. The purpose of this study was to investigate the effects of 6 weeks of high-intensity interval training (HIT) on PV and blood pressure (BP) changes among sedentary individuals. Thirty subjects aged between 18 and 71 years [body mass index=30.1(1.2) kg/m2 ] completed a 6-weeks HIT program. Anthropometric and fitness variables were obtained at pre- and post- HIT. PV variations during warm-up and after supramaximal cycling test (SCT) were calculated using two methods based on Hematocrit (Ht) and Hemoglobin (Hb) measures...
February 2018: Physiological Reports
https://www.readbyqxmd.com/read/29461016/postdialysis-recovery-time-is-extended-in-patients-with-greater-self-reported-depression-screening-questionnaire-scores
#6
Andrew Davenport, Ayman Guirguis, Michael Almond, Clara Day, Joseph Chilcot, Maria Da Silva Gane, Naomi Fineberg, Karin Friedl, Benjamin Spencer, David Wellsted, Ken Farrington
INTRODUCTION: Most patients take time to recover after a hemodialysis (HD) session. It has been suggested that recovery time is associated with intradialytic hypotension and rapid solute clearances. Other studies have reported a linkage to depression. We investigated the association between recovery time and intradialytic hypotension and depression. METHODS: In five UK HD units, we screened for depressive symptoms using the Beck depression inventory-II, Patient Health Questionnaire, and recorded sessional blood pressures and Kt/Vurea...
February 20, 2018: Hemodialysis International
https://www.readbyqxmd.com/read/29460292/genetic-and-environmental-physical-fitness-and-sedentary-activity-interaction-effects-on-cardiometabolic-risk-factors-in-mexican-american-children-and-adolescents
#7
Rector Arya, Vidya S Farook, Sharon P Fowler, Sobha Puppala, Geetha Chittoor, Roy G Resendez, Srinivas Mummidi, Jairam Vanamala, Laura Almasy, Joanne E Curran, Anthony G Comuzzie, Donna M Lehman, Christopher P Jenkinson, Jane L Lynch, Ralph A DeFronzo, John Blangero, Daniel E Hale, Ravindranath Duggirala, Vincent P Diego
Knowledge on genetic and environmental (G × E) interaction effects on cardiometabolic risk factors (CMRFs) in children is limited.  The purpose of this study was to examine the impact of G × E interaction effects on CMRFs in Mexican American (MA) children (n = 617, ages 6-17 years). The environments examined were sedentary activity (SA), assessed by recalls from "yesterday" (SAy) and "usually" (SAu) and physical fitness (PF) assessed by Harvard PF scores (HPFS). CMRF data included body mass index (BMI), waist circumference (WC), fat mass (FM), fasting insulin (FI), homeostasis model of assessment-insulin resistance (HOMA-IR), high-density lipoprotein cholesterol (HDL-C), triglycerides (TG), systolic (SBP) and diastolic (DBP) blood pressure, and number of metabolic syndrome components (MSC)...
February 20, 2018: Genetic Epidemiology
https://www.readbyqxmd.com/read/29458073/establishment-and-validation-of-a-prediction-model-for-ischemic-stroke-risks-in-patients-with-type-2-diabetes
#8
Tsai-Chung Li, Hsiang-Chi Wang, Chia-Ing Li, Chiu-Shong Liu, Wen-Yuan Lin, Chih-Hsueh Lin, Sing-Yu Yang, Cheng-Chieh Lin
AIMS: A risk scoring system for predicting ischemic stroke incidence may identify type 2 diabetes patients at high risk for ischemic stroke who can benefit from preventive intervention programs. Such a risk scoring system can serve as a benchmark to test novel putative risk factors. METHODS: The study adopted a retrospective cohort, including 28,124 Chinese patients with type 2 diabetes aged 30-84 years during 2001-2004. Participants were randomly assigned to the derivation and validation sets at a 2:1 ratio...
February 16, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29457332/association-of-visit-to-visit-blood-pressure-variability-with-the-risk-of-all-cause-mortality-and-cardiovascular-events-in-general-population
#9
Liye Dai, Lu Song, Xiaoli Li, Yuling Yang, Xiaoming Zheng, Yuntao Wu, Chunhui Li, Hualing Zhao, Yilong Wang, Shouling Wu, Yongjun Wang
The association between blood pressure variability (BPV) and the risk of all-cause mortality and cardiovascular diseases (CVD) is not well understood. The Kailuan study is a prospective longitudinal cohort study on cerebrovascular events and cardiovascular factors. In this study, resting blood pressure was measured at baseline and every 2 years from 2006 to 2007. BPV is mainly defined as the coefficient of variation (CV). Hazard ratio (HR), with 95% confidence intervals (CI) was calculated using Cox regression model...
February 19, 2018: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/29455795/does-resting-heart-rate-measured-by-the-physician-reflect-the-patient-s-true-resting-heart-rate-white-coat-heart-rate
#10
Benoit Lequeux, Charles Uzan, Michaela B Rehman
OBJECTIVES: In cardiology, resting heart rate (HR) and blood pressure (BP) are key elements and are used to adapt treatment. However HR measured in consultation may not reflect true resting HR. We hypothesize that there may be a "white-coat" effect like with BP and that there may be an association between HR variations and BP variations. METHODS: This prospective, monocentric, observational, pilot study (January-April 2016) included 57 consecutive ambulatory patients at Poitiers University Hospital, France (58% male, mean age 64 years)...
January 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29454381/human-cerebrovascular-function-in-health-and-disease-insights-from-integrative-approaches
#11
REVIEW
Erin D Ozturk, Can Ozan Tan
BACKGROUND: The marked increase in the size of the brain, and consequently, in neural processing capability, throughout human evolution is the basis of the higher cognitive function in humans. However, greater neural, and thus information processing capability, comes at a significant metabolic cost; despite its relatively small size, the modern human brain consumes almost a quarter of the glucose and oxygen supply in the human body. Fortunately, several vascular mechanisms ensure sufficient delivery of glucose and oxygen to the active neural tissue (neurovascular coupling), prompt removal of neural metabolic by-products (cerebral vasoreactivity), and constant global blood supply despite daily variations in perfusion pressure (cerebral autoregulation)...
February 17, 2018: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/29451721/sodium-glucose-co-transporter-2-sglt2-inhibitors-as-add-on-therapy-to-insulin-for-type-1-diabetes-mellitus-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#12
Tomohide Yamada, Nobuhiro Shojima, Hisashi Noma, Toshimasa Yamauchi, Takashi Kadowaki
New treatments for type 1 diabetes are an unmet need. We investigated the efficacy and safety of adding SGLT-2is to insulin for type 1 diabetes by meta-analysis of prospective randomized, placebo-controlled trials. Searching electronic databases up to October 2017 identified 1361 studies, among which 14 were investigated (N=4,591). Meta-analysis revealed that SGLT-2i therapy significantly reduced HbA1c by 0.4% (95% confidence interval [CI]: 0.35, 0.46; P<0.001; I2=0%), fasting plasma glucose by 1.14 mmol/l (0...
February 16, 2018: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29450487/systolic-blood-pressure-and-outcomes-in-patients-with-heart-failure-with-preserved-ejection-fraction
#13
Apostolos Tsimploulis, Phillip H Lam, Cherinne Arundel, Steven N Singh, Charity J Morgan, Charles Faselis, Prakash Deedwania, Javed Butler, Wilbert S Aronow, Clyde W Yancy, Gregg C Fonarow, Ali Ahmed
Importance: Lower systolic blood pressure (SBP) levels are associated with poor outcomes in patients with heart failure. Less is known about this association in heart failure with preserved ejection fraction (HFpEF). Objective: To determine the associations of SBP levels with mortality and other outcomes in HFpEF. Design, Setting, and Participants: A propensity score-matched observational study of the Medicare-linked Organized Program to Initiate Lifesaving Treatment in Hospitalized Patients with Heart Failure (OPTIMIZE-HF) registry included 25 354 patients who were discharged alive; 8873 (35...
February 14, 2018: JAMA Cardiology
https://www.readbyqxmd.com/read/29449705/comparison-between-l-type-and-n-l-type-calcium-channel-blockers-in-the-regulation-of-home-blood-pressure-variability-in-elderly-hypertensive-patients
#14
Satoko Nozato, Koichi Yamamoto, Yoichi Nozato, Masao Takeda, Kazuhiro Hongyo, Miyuki Takeya, Hiroshi Akasaka, Yoichi Takami, Yasushi Takeya, Ken Sugimoto, Norihisa Ito, Hiromi Rakugi
Recent studies suggest that L-type calcium channel blockers (CCBs) contribute to reducing blood pressure (BP) variability. We investigated whether inhibition of the N-type calcium channel has an additional effect on BP variability by comparing the effect of L-type and L/N-type CCBs on home BP variability in elderly hypertensive patients. Twenty-six hypertensive patients (≥65 years) were subjected to repeated changes with the administration of amlodipine (L-type CCB) and cilnidipine (L/N-type CCB) every 2 months...
February 15, 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/29447152/a-multiscale-modelling-approach-to-assess-the-impact-of-metabolic-zonation-and-microperfusion-on-the-hepatic-carbohydrate-metabolism
#15
Nikolaus Berndt, Marius Stefan Horger, Sascha Bulik, Hermann-Georg Holzhütter
The capacity of the liver to convert the metabolic input received from the incoming portal and arterial blood into the metabolic output of the outgoing venous blood has three major determinants: The intra-hepatic blood flow, the transport of metabolites between blood vessels (sinusoids) and hepatocytes and the metabolic capacity of hepatocytes. These determinants are not constant across the organ: Even in the normal organ, but much more pronounced in the fibrotic and cirrhotic liver, regional variability of the capillary blood pressure, tissue architecture and the expression level of metabolic enzymes (zonation) have been reported...
February 15, 2018: PLoS Computational Biology
https://www.readbyqxmd.com/read/29446224/comparative-effects-of-small-intestinal-glucose-on-blood-pressure-heart-rate-and-noradrenaline-responses-in-obese-and-healthy-subjects
#16
Laurence G Trahair, Tongzhi Wu, Christine Feinle-Bisset, Chinmay S Marathe, Christopher K Rayner, Michael Horowitz, Karen L Jones
Meal consumption leads to an increase in sympathetic output to compensate for hemodynamic changes and maintain blood pressure (BP). Obesity is associated with a blunting of the sympathetic response to meal ingestion, but interpretation of studies investigating these responses is compromised by their failure to account for the rate of gastric emptying, which is an important determinant of postprandial cardiovascular and sympathetic responses and, in both health and obesity, exhibits a wide interindividual variation...
February 2018: Physiological Reports
https://www.readbyqxmd.com/read/29445414/effects-of-a-new-nutraceutical-combination-on-cognitive-function-in-hypertensive-patients
#17
Giuseppe Giugliano, Alessia Salemme, Sara De Longis, Marialuisa Perrotta, Valentina D'Angelosante, Alessandro Landolfi, Raffaele Izzo, Valentina Trimarco
Background: Chronic increased arterial blood pressure has been associated with executive dysfunction, slowing of attention and mental processing speed, and later with memory deficits. Due to the absence of a concrete therapeutic approach to this pathophysiological process, in the last decades there has been an increasing interest in the use of nutraceuticals, especially those with antioxidant properties, which own strong neuroprotective potential, that may help to improve cognitive function and to delay the onset of dementia...
2018: Immunity & Ageing: I & A
https://www.readbyqxmd.com/read/29445280/the-differences-between-patients-with-panic-disorder-and-healthy-controls-in-psychophysiological-stress-profile
#18
Antonia Kotianova, Michal Kotian, Milos Slepecky, Michaela Chupacova, Jan Prasko, Ingrid Tonhajzerova
Background: Alarming somatic symptoms, in particular, cardiovascular symptoms, are the characteristic feature of panic attacks. Increased cardiac mortality and morbidity have been found in these patients. Power spectral analysis of electrocardiogram R-R intervals is known to be a particularly successful tool in the detection of autonomic instabilities in various clinical disorders. Our study aimed to compare patients with panic disorder and healthy controls in heart rate variation (HRV) parameters (very-low-frequency [VLF], low-frequency [LF], and high-frequency [HF] band components of R-R interval) in baseline and during the response to the mental task...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29443486/effects-on-patients-of-variations-in-the-implementation-of-a-cardiometabolic-risk-intervention-program-in-montr%C3%A3-al
#19
Marie-Ève Beauregard, Sylvie Provost, Raynald Pineault, Dominique Grimard, José Pérez, Michel Fournier
INTRODUCTION: In 2011, the Agence de la santé et des services sociaux de Montréal (ASSSM), in partnership with the region's Centres de santé et de services sociaux (CSSS), coordinated the implementation of a program on cardiometabolic risk based on the Chronic Care Model. The program, intended for patients suffering from diabetes or hypertension, involved a series of individual follow-up appointments, group classes and exercise sessions. Our study assesses the impact on patient health outcomes of variations in the implementation of some aspects of the program among the six CSSSs taking part in the study...
February 2018: Health Promotion and Chronic Disease Prevention in Canada
https://www.readbyqxmd.com/read/29441350/perioperative-goal-directed-therapy-using-invasive-uncalibrated-pulse-contour-analysis
#20
Bernd Saugel, Daniel A Reuter
"Perioperative goal-directed therapy" (PGDT) aims at an optimization of basic and advanced global hemodynamic variables to maintain adequate oxygen delivery to the end-organs. PGDT protocols help to titrate fluids, vasopressors, or inotropes to hemodynamic target values. There is considerable evidence that PGDT can improve patient outcome in high-risk patients if both fluids and inotropes are administered to target hemodynamic variables reflecting blood flow. Despite this evidence, PGDT strategies aiming at an optimization of blood flow seem to be not well implemented in routine clinical care...
2018: Frontiers in Medicine
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