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https://www.readbyqxmd.com/read/27902931/human-presynaptic-receptors
#1
REVIEW
Eberhard Schlicker, Thomas Feuerstein
Presynaptic receptors are sites at which transmitters, locally formed mediators or hormones inhibit or facilitate the release of a given transmitter from its axon terminals. The interest in the identification of presynaptic receptors has faded in recent years and it may therefore be justified to give an overview of their occurrence in the autonomic and central nervous system; this review will focus on presynaptic receptors in human tissues. Autoreceptors are presynaptic receptors at which a given transmitter restrains its further release, though in some instances may also increase its release...
November 27, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27881519/comparison-of-therapy-persistence-for-fixed-versus-free-combination-antihypertensives-a-retrospective-cohort-study
#2
Thomas Grimmsmann, Wolfgang Himmel
OBJECTIVES: The aim of the study was to compare therapy persistence among patients who started with one of three drug regimens: a monotherapy, or combination therapy either as a fixed combination (ie, 'single pill') or as a free combination (ie, two separate antihypertensive agents). DESIGN: In a secondary data analysis, we used descriptive statistics and multivariate logistic regression to measure the effect of the three therapy regimens on therapy persistence over 4 years...
November 22, 2016: BMJ Open
https://www.readbyqxmd.com/read/27864240/new-horizons-in-orthostatic-hypotension
#3
REVIEW
James Frith, Steve W Parry
BACKGROUND: orthostatic hypotension (OH) is a common disabling condition associated with increased morbidity and mortality. Much of the evidence available is derived from younger populations with chronic neurological disease leading to uncertainty for the diagnosis and management of older people. OBJECTIVE: to provide an overview of recent and emerging evidence for the diagnosis, management and prognosis of OH in older persons. METHODS: a narrative review of recent studies, emerging therapies and relevant regulatory updates...
November 17, 2016: Age and Ageing
https://www.readbyqxmd.com/read/27843645/safety-and-antihypertensive-effect-of-selara%C3%A2-eplerenone-results-from-a-postmarketing-surveillance-in-japan
#4
Shoko Takahashi, Megumi Hiramatsu, Shinichi Hotta, Yukie Watanabe, Osamu Suga, Yutaka Endo, Isamu Miyamori
Prospective postmarketing surveillance of Selara (eplerenone), a selective mineralocorticoid receptor antagonist, was performed to confirm its safety and efficacy for hypertension treatment in Japan. The change in blood pressure after initiation of eplerenone treatment was also examined. Patients with essential hypertension who were eplerenone-naïve were recruited regardless of the use of other antihypertensive drugs. For examination of changes in blood pressure, patients were excluded if eplerenone was contraindicated or used off-label...
2016: International Journal of Hypertension
https://www.readbyqxmd.com/read/27809779/hypertension-and-cognitive-dysfunction-in-elderly-blood-pressure-management-for-this-global-burden
#5
REVIEW
Marijana Tadic, Cesare Cuspidi, Dagmara Hering
Arterial hypertension and stroke are strong independent risk factors for the development of cognitive impairment and dementia. Persistently elevated blood pressure (BP) is known to impair cognitive function, however onset of new cognitive decline is common following a large and multiple mini strokes. Among various forms of dementia the most prevalent include Alzheimer's disease (AD) and vascular dementia (VaD) which often present with similar clinical symptoms and challenging diagnosis. While hypertension is the most important modifiable vascular risk factor with antihypertensive therapy reducing the risk of stroke and potentially slowing cognitive decline, optimal BP levels for maintaining an ideal age-related mental performance are yet to be established...
November 3, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27802415/genome-wide-and-gene-based-meta-analyses-identify-novel-loci-influencing-blood-pressure-response-to-hydrochlorothiazide
#6
Erika Salvi, Zhiying Wang, Federica Rizzi, Yan Gong, Caitrin W McDonough, Sandosh Padmanabhan, Timo P Hiltunen, Chiara Lanzani, Roberta Zaninello, Martina Chittani, Kent R Bailey, Antti-Pekka Sarin, Matteo Barcella, Olle Melander, Arlene B Chapman, Paolo Manunta, Kimmo K Kontula, Nicola Glorioso, Daniele Cusi, Anna F Dominiczak, Julie A Johnson, Cristina Barlassina, Eric Boerwinkle, Rhonda M Cooper-DeHoff, Stephen T Turner
This study aimed to identify novel loci influencing the antihypertensive response to hydrochlorothiazide monotherapy. A genome-wide meta-analysis of blood pressure (BP) response to hydrochlorothiazide was performed in 1739 white hypertensives from 6 clinical trials within the International Consortium for Antihypertensive Pharmacogenomics Studies, making it the largest study to date of its kind. No signals reached genome-wide significance (P<5×10(-)(8)), and the suggestive regions (P<10(-5)) were cross-validated in 2 black cohorts treated with hydrochlorothiazide...
October 31, 2016: Hypertension
https://www.readbyqxmd.com/read/27771852/threshold-and-target-for-blood-pressure-lowering-in-the-elderly
#7
Guido Grassi, Fosca Quarti-Trevano, Anna Casati, Raffaella Dell'Oro
PURPOSE OF REVIEW: Detection of elevated blood pressure values in elderly patients represents a common clinical condition associated with an increased cardiovascular risk. This has been shown to be the case in both systodiastolic and isolated systolic hypertension as well. However, despite the evidence of the benefits of the blood pressure lowering intervention in terms of reduction of cardiovascular morbidity and mortality, at least two issues related to antihypertensive drug treatment in aged individuals are still undefined: (1) the blood pressure threshold at which antihypertensive drug should be initiated and (2) the blood pressure goals of the therapeutic intervention...
December 2016: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/27754278/hw-03-1-renal-sympathetic-denervation-for-resistant-hypertension-under-optimal-drug-therapy
#8
Byeong-Keuk Kim
Catheter-based renal sympathetic denervation (RDN) has opened the new world in the treatment of resistant or refractory hypertension. However, SYMPLICITY HTN-3, 2:1 randomization, blinded and sham-controlled study did not show a significant reduction of systolic blood pressure (BP) in patients with resistant hypertension 6 months after RDN as compared with a sham control. After that, substudy investigating the predictors of BP responses in SYMPLICITY HTN-3 trial was reported; racial difference and optimal medical treatment were issued for the optimal denervation therapy...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754274/sy-17-4-neuro-immune-communication-in-hypertension-a-new-therapeutic-angle
#9
Mohan Raizada
Hypertension (HTN) is the most prevalent modifiable risk for cardiovascular disease (CVD) and disorders directly influencing CVD (i.e. obesity, diabetes, chronic kidney disease, obstructive sleep apnea, etc.). About one billion people worldwide have HTN, with American adults having 90% lifetime risk of developing HTN. Despite aggressive campaign for lifestyle changes and advances in drug therapy, HTN remains an immense health, emotional, and economic challenge. This is due, in part, to the fact that ∼50% of HTN patients' blood pressure remains uncontrolled and ∼20% of HTN patients are resistant to or require > antihypertensive drugs...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754201/ish-pre-2-the-vascular-phenotype-in-hypertension-molecular-mechanisms-and-clinical-implications
#10
Rhian M Touyz
Pathophysiological mechanisms contributing to hypertension include endothelial dysfunction and vascular ignalling. These changes are initially adaptive but chronically become maladaptive leading to vascular damage and loss of function. Common to these processes are changes in the characteristics of vascular cells to a pro-infl ammatory, vasoconstrictory and proliferative phenotype, infl uenced by activation of the RAS and oxidative stress. Increased ROS production and decreased cellular antioxidant defense mechanisms, contribute to oxidative stress, which infl uences redox-sensitive Ang II ignalling that promotes vascular injury in hypertension...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754195/br-06-1-clinical-applications-of-visit-to-visit-blood-pressure-variability
#11
Jinho Shin
Since the introduction of visit to visit blood pressure variability (VVBPV) for cardiovascular outcome, it has long been awaited for prospective intervention trial to reduce VVBPV for evidence based medicine. But because of several hurdles, most importantly, pending measure to reduce VVBPV, such trial may not be available in the near future. It means that current understanding on the VVBPV is not casual but related to the cardiovascular outcome.Waiting for more sound evidence, which can be remained in a clinician's mind struggling not to be indifferent for potential benefit? Firstly, the most important potential confounder in spite of the strict statistical analyses to be published may be the mean blood pressure...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754172/sy-14-1-therapeutic-drug-monitoring-facilitates-blood-pressure-control-in-resistant-hypertension
#12
Wanpen Vongpatanasin
OBJECTIVES: To assess the impact of therapeutic drug monitoring (TDM)-guided feedback on BP control in patients with resistant hypertension (RH), defined as blood pressure (BP) ≥140/90 mmHg despite ≥ 3 antihypertensive drugs. BACKGROUND: Nonadherence to antihypertensive medications is a major contributor to cardiovascular morbidity and mortality. Recent studies have implicated TDM as a reliable method of monitoring treatment adherence in patients with RH. However, the role of TDM-guided feedback on BP in RH has not been determined...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754161/pl-03-2-remote-blood-pressure-monitoring-in-hypertension-care-practice-of-hypertension-by-teletransmission-of-home-blood-pressure
#13
Yutaka Imai
It has been confirmed that clinical significance of home blood pressure measurements (HBPM) is higher than clinic BP measurements and ambulatory BP monitoring. However, several drawbacks of HBPM have also been mentioned, e.g. selection and reporting biases, difficulties of calculation of multiple measurements, difficulties of onsite judgement of numerous recordings, etc. Recent devices for HBPM incorporate memory function. This function can overcome such drawbacks of HBPM. These memorized data can transmit, storage, retrieve, be arithmetic and control, be judged based on algorithm and be got feedback...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754044/os-14-01-an-estimated-optimal-hypertension-level-of-goals-on-drug-therapy-from-the-fever-trial
#14
Xuezhong Zhang, Yuqing Zhang, Lisheng Liu, Alberto Zanchetti
OBJECTIVE: There is some debate as to optimal BP goals with antihypertensive treatment derived mostly in post-hoc analysis of large trials. Because there was limited number of subjects and outcomes within the larger study which may cloud the analytical accuracy of the findings. We suggest a new method to estimate the J-curve. DESIGN AND METHOD: Felodipine Event Reduction (FEVER) study randomized 9711 Chinese hypertensive patients to more or less intense anti-hypertensive treatment with 159,844 BP measurements...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754015/br-04-1management-of-treatment-resistant-hypertension
#15
David John Webb
Treatment-resistant hypertension (TRH) is defined as the failure to achieve an office BP target of <140/90 mmHg (<130/80 mmHg in patients with chronic kidney disease (CKD) or diabetes) in patients with hypertension (HT), despite adherence to at least 3 antihypertensive medications at optimal tolerated doses, ideally including a diuretic (Calhoun et al., Circulation 2008). TRH identifies patients with hard-to-treat HT, who might benefit from specialist investigation and treatment. Although some studies put the prevalence of TRH as >10%, these levels may be inflated by white-coat hypertension and poor adherence...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27754003/js-ish-isn-2-role-of-the-kidney-in-resistant-hypertension-why-so-resistant-to-bp-control-in-ckd-patients
#16
George Bakris
Resistant hypertension is defined as a blood pressure above 140/90 mmHg despite adherence to a combination of at least three optimally dosed antihypertensive medications, one of which is a diuretic. Chronic kidney disease (CKD) is one of the more common patient comorbidities associated with resistant hypertension. Recommended low-salt diet and triple antihypertensive drug regimens that include a diuretic, should be complemented by the sequential addition of other antihypertensive drugs. CKD is associated with premature vascular ageing, characterized by accelerated arteriosclerosis or atherosclerosis and endothelial dysfunction...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27753989/sy-10-3-sglt2-inhibitors-as-potential-antihypertensive-and-renoprotective-agents
#17
Peter Mertens
Remarkable progress has been achieved in the field of diabetes with the development of incretin analogues, dipeptidyl peptidase IV inhibitors and novel insulin analogues; nevertheless, there is an unmet need for additional therapeutic options. The new generation of drugs, denoted gliflozines, that specifically interfere with sodium-glucose cotransporters (SGLT)-2 and exhibit a favourable impact on glucose metabolism in patients with type 2 diabetes are emerging as hopeful avenues. The resultant negative energy balance caused by glucosuria results in long-term weight losses, significantly reduced HbA1c levels approximating 0...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27753856/hw-01-4-cardioankle-vascular-index-cavi-in-hypertension
#18
Kohji Shirai
BACKGROUND: The cardio-ankle vascular index (CAVI) is a new arterial stiffness index of the arterial tree from the origin of the aorta to the ankle, and was essentially derived from the stiffness parameterβtheory proposed by Hayashi. The conspicuous feature of CAVI is independency from blood pressure at the time of measurement. AIM: The purpose is to clarify the meaning of CAVI as a surrogate marker of arteriosclerosis, and also the role of CAVI in the blood pressure control system...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27753823/sy-01-1-adaptation-of-major-guidelines-for-regional-applications
#19
Ernesto Schiffrin
Clinical practice guidelines, which are systematically developed statements aimed at helping people make clinical, policy-related and system-related decisions, frequently vary widely in quality. A strategy is needed to differentiate among guidelines and ensure that those of the highest quality are implemented. Hypertension Canada provides annually updated standardized recommendations and clinical practice guidelines to detect, treat and control hypertension. The annual, evidence-based recommendations are developed through intense discussion of the clinical implications via a systematic review of the literature followed by critical appraisals of all the new clinical research, taking into account the assessment criteria in the Appraisal of Guidelines for Research & Evaluation (AGREE) II instrument that evaluates the process of practice guideline development and the quality of reporting...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27745547/human-cancer-cell-line-based-approach-of-1-3-4-thiadiazole-and-its-fused-ring-a-comprehensive-review
#20
Sudipta Saha, Vinit Raj, Amit Rai
The chemistry of heterocyclic containing, 1,3,4-thiadiazole has been an interesting field of study from ancient years. Subsequently, 1,3,4-thiadiazole nucleus constitutes a significant class of compounds for new drug development. Recently, various 1,3,4-thiadiazole derivatives have been synthesized and evaluated their biological activities including antimicrobial, antituberculosis, antioxidant, anti-inflammatory, anticonvulsants, antidepressant and anxiolytic, antihypertensive, anticancer and antifungal activity...
October 13, 2016: Anti-cancer Agents in Medicinal Chemistry
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