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https://www.readbyqxmd.com/read/29330659/coffee-with-a-high-content-of-chlorogenic-acids-and-low-content-of-hydroxyhydroquinone-improves-postprandial-endothelial-dysfunction-in-patients-with-borderline-and-stage-1-hypertension
#1
Masato Kajikawa, Tatsuya Maruhashi, Takayuki Hidaka, Yukiko Nakano, Satoshi Kurisu, Takeshi Matsumoto, Yumiko Iwamoto, Shinji Kishimoto, Shogo Matsui, Yoshiki Aibara, Farina Mohamad Yusoff, Yasuki Kihara, Kazuaki Chayama, Chikara Goto, Kensuke Noma, Ayumu Nakashima, Takuya Watanabe, Hiroshi Tone, Masanobu Hibi, Noriko Osaki, Yoshihisa Katsuragi, Yukihito Higashi
PURPOSE: The purpose of this study was to evaluate acute effects of coffee with a high content of chlorogenic acids and different hydroxyhydroquinone contents on postprandial endothelial dysfunction. METHODS: This was a single-blind, randomized, placebo-controlled, crossover-within-subject clinical trial. A total of 37 patients with borderline or stage 1 hypertension were randomized to two study groups. The participants consumed a test meal with a single intake of the test coffee...
January 12, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29329694/management-of-refractory-vasodilatory-shock
#2
REVIEW
Jacob C Jentzer, Saraschandra Vallabhajosyula, Ashish K Khanna, Lakhmir S Chawla, Laurence W Busse, Kianoush B Kashani
Refractory shock is a lethal manifestation of cardiovascular failure defined by an inadequate hemodynamic response to high doses of vasopressor medications. Approximately 7% of critically ill patients will develop refractory shock, with short-term mortality exceeding 50%. Refractory vasodilatory shock develops from uncontrolled vasodilation and vascular hyporesponsiveness to endogenous vasoconstrictors, causing failure of physiologic vasoregulatory mechanisms. Standard approaches to initial management of shock include fluid resuscitation and initiation of norepinephrine...
January 9, 2018: Chest
https://www.readbyqxmd.com/read/29329358/modulating-role-of-ang1-7-in-control-of-blood-pressure-and-renal-function-in-angii-infused-hypertensive-rats
#3
Marta Kuczeriszka, Elzbieta Kompanowska-Jezierska, Janusz Sadowski, Minolfa Prieto, L Gabriel Navar
Background: Indirect evidence suggests that angiotensin 1-7 (Ang1-7) may counterbalance prohypertensive actions of angiotensin II (AngII), via activation of vascular and/or renal tubular receptors to cause vasodilation and natriuresis/diuresis. We examined if Ang1-7 would attenuate the development of hypertension, renal vasoconstriction and decreased natriuresis in AngII-infused rats and evaluated the mechanisms involved. Methods: AngII, alone or with Ang1-7, was infused to conscious Sprague-Dawley rats for 13 days and systolic blood pressure (SBP) and renal excretion were repeatedly determined...
January 10, 2018: American Journal of Hypertension
https://www.readbyqxmd.com/read/29329185/vasodilation-during-normothermic-machine-perfusion-preventing-the-no-reflow-phenomena
#4
Ahmed Nassar, Cristiano Quintini
No abstract text is available yet for this article.
January 11, 2018: Transplantation
https://www.readbyqxmd.com/read/29328541/gm-csf-ameliorates-micro-vascular-barrier-integrity-via-pericytes-derived-ang-1-in-wound-healing
#5
Min Yan, Yange Hu, Min Yao, Shisan Bao, Yong Fang
BACKGROUND: Skin wound healing involves complex coordinated interactions of cells, tissues and mediators. Maintaining microvascular barrier integrity is one of the key events for endothelial homeostasis during wound healing. Vasodilation is observed after vasoconstriction, which causes blood vessels to become porous, facilitates leukocyte infiltration and aids angiogenesis at the wound-area, post-injury. Eventually, vessel integrity has to be re-established for vascular maturation. Numerous studies have found that granulocyte macrophage colony-stimulating factor (GM-CSF) accelerates wound healing by inducing recruitment of repair cells into the injury area and releases of cytokines...
January 12, 2018: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29327505/flexible-modulation-of-co-release-using-various-nuclearity-of-metal-carbonyl-clusters-on-graphene-oxide-for-stroke-remediation
#6
Mein Jin Tan, Han-Chi Pan, Hui Ru Tan, Jian Wei Chai, Qi Feng Lim, Ten It Wong, Xiaodong Zhou, Zi-Yao Hong, Lun-De Liao, Kien Voon Kong
Utilizing the size-dependent adsorption properties of ruthenium carbonyl clusters (Ru-carbon monoxide (CO)) onto graphene oxide (GO), a facile CO-release platform for in situ vasodilation as a treatment for stroke-related vascular diseases is developed. The rate and amount of formation of the CO-release-active RuII (CO)2 species can be modulated by a simple mixing procedure at room temperature. The subsequent thermally induced oxidation of RuII (CO)2 to RuO2 on the GO surface results in the release of CO. Further modulation of thermal and CO-release properties can be achieved via a hybridization of medium- and high-nuclearity of Ru-CO clusters that produces a RuO2 /RuII (CO)2 /6 Ru-CO-GO composite, where 6 Ru-CO-GO provides a photothermally activated reservoir of RuII (CO)2 species and the combined infrared absorption properties of GO and RuO2 provides photothermal response for in situ CO-release...
January 12, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29325034/ghrelin-preserves-ischemia-induced-vasodilation-of-male-rat-coronary-vessels-following-beta-adrenergic-receptor-blockade
#7
James T Pearson, Nicola Collie, Regis R Lamberts, Tadakatsu Inagaki, Misa Yoshimoto, Keiji Umetani, Philip Davis, Gerard Wilkins, Pete P Jones, Mikiyasu Shirai, Daryl O Schwenke
Acute myocardial infarction (MI) triggers an adverse increase in cardiac sympathetic nerve activity (SNA). While β-adrenergic receptor (β-AR)-blockers are routinely used for the management of MI, they may also counter β-AR-mediated vasodilation of coronary vessels. We have reported that ghrelin prevents sympathetic activation following MI. Whether ghrelin modulates coronary vascular tone following MI, either through the modulation of SNA, or directly as a vasoactive mediator, has never been addressed.We utilized synchrotron microangiography to image coronary perfusion and vessel internal diameter (ID) in anesthetized Sprague Dawley rats before, and then again 30 mins after induction of an MI (left coronary artery ligation)...
January 9, 2018: Endocrinology
https://www.readbyqxmd.com/read/29325032/effect-of-diazoxide-on-friedreich-ataxia-models
#8
Antonella Santoro, Sara Anjomani Virmouni, Eleonora Paradies, Valentina L Villalobos Coa, Sahar Al-Mahdawi, Mee Khoo, Vito Porcelli, Angelo Vozza, Mara Perrone, Nunzio Denora, Franco Taroni, Giuseppe Merla, Luigi Palmieri, Mark A Pook, Carlo M T Marobbio
Friedreich ataxia (FRDA) is an inherited recessive disorder caused by a deficiency in the mitochondrial protein frataxin. There is currently no effective treatment for FRDA available, especially for neurological deficits. In this study, we tested diazoxide, a drug commonly used as vasodilator in the treatment of acute hypertension, on cellular and animal models of FRDA. We first showed that diazoxide increases frataxin protein levels in FRDA lymphoblastoid cell lines, via the mTOR pathway. We then explored the potential therapeutic effect of diazoxide in frataxin-deficient transgenic YG8sR mice and we found that prolonged oral administration of 3mpk/d diazoxide was found to be safe, but produced variable effects concerning efficacy...
January 8, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29324626/vascular-effects-of-adrenomedullin-and-the-anti-adrenomedullin-antibody-adrecizumab-in-sepsis
#9
Christopher Geven, Andreas Bergmann, Matthijs Kox, Peter Pickkers
Sepsis remains a major scientific and medical challenge, for which, apart from significant refinements in supportive therapy, treatment has barely changed over the last few decades. During sepsis, both vascular tone and vascular integrity are compromised, and contribute to the development of shock. The free circulating peptide adrenomedullin (ADM) is involved in regulation of the endothelial barrier function and tone of blood vessels. Several animal studies have shown that ADM administration improves outcome of sepsis...
January 10, 2018: Shock
https://www.readbyqxmd.com/read/29324187/shock-associated-cardiac-arrest-vasodilator-therapy-may-help
#10
Guillaume Debaty, Marine Paul, Alain Cariou
No abstract text is available yet for this article.
January 11, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29322226/nebivolol-a-%C3%AE-blocker-abrogates-streptozotocin-induced-behavioral-biochemical-and-neurophysiological-deficit-by-attenuating-oxidative-nitrosative-stress-a-possible-target-for-the-prevention-of-diabetic-neuropathy
#11
Naini Bhadri, Rema Razdan, Sumanta Kumar Goswami
Metabolic abnormalities including hyperglycemia, hyperlipidemia, and oxidative-nitrosative stress are involved in the progression of diabetic neuropathy. In the present study, we targeted oxidative-nitrosative stress using nebivolol, a β1-receptor antagonist with vasodilator and antioxidant property, to evaluate its neuroprotective effect in streptozotocin-induced diabetic neuropathy in rats. Diabetic neuropathy develops within 4-6 weeks after administration of streptozotocin (55 mg/kg, i.p.). Therefore, after confirmation of diabetes, subtherapeutic doses of nebivolol (1 and 2 mg/kg, p...
January 11, 2018: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29322080/data-on-a-single-oral-dose-of-camu-camu-myrciaria-dubia-pericarp-extract-on-flow-mediated-vasodilation-and-blood-pressure-in-young-adult-humans
#12
Tadayoshi Miyashita, Ryosuke Koizumi, Takao Myoda, Yoshimasa Sagane, Koichi Niwa, Toshihiro Watanabe, Kazuhiro Minami
This data article describes the flow-mediated vasodilation (FMD) responses, represented by changes in arterial diameter, and blood pressure changes in young adults after a single oral dose of camu camu (Myrciaria dubia) pericarp extract or placebo (cross-over design). Ten healthy men and 10 healthy women participated in this study. Ultrasonic diagnostic equipment was used to monitor arterial diameter changes, indicative of FMD, for 110 s after the administration of the camu camu extract or placebo. In addition, the systolic and diastolic blood pressure values were recorded...
February 2018: Data in Brief
https://www.readbyqxmd.com/read/29321132/intersection-of-pulmonary-hypertension-and-right-ventricular-dysfunction-in-patients-on-left-ventricular-assist-device-support-is-there-a-role-for-pulmonary-vasodilators
#13
Christopher T Sparrow, Shane J LaRue, Joel D Schilling
Left ventricular assist devices (LVADs) improve survival and quality of life in patients with advanced heart failure. Despite these benefits, combined post- and precapillary pulmonary hypertension can be particularly problematic in patients on LVAD support, often exacerbating right ventricular (RV) dysfunction. Both persistently elevated pulmonary vascular resistance and RV dysfunction are associated with adverse outcomes, including death after LVAD. These observations have led to significant interest in the use of pulmonary vasodilators to treat pulmonary hypertension and preserve RV function among LVAD-supported patients...
January 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29321064/the-role-of-ace2-angiotensin-1-7-and-mas1-receptor-axis-in-glucocorticoid-induced-intrauterine-growth-restriction
#14
Elham Ghadhanfar, Aseel Alsalem, Shaimaa Al-Kandari, Jumana Naser, Fawzi Babiker, Maie Al-Bader
BACKGROUND: Plasma and urine levels of the potent vasodilator Ang-(1-7) are elevated in mid and late pregnancy and are correlated with elevated placental angiogenesis, fetal blood flow, and rapid fetal growth. We hypothesized that Ang-(1-7), its receptor (Mas1) and the enzymes involved in Ang-(1-7) production (ACE2 and Membrane metallo-endopeptidase; MME) are down regulated in response to glucocorticoid administration contributing to IUGR. METHODS: Pregnant female Sprague-Dawley rats were injected with dexamethasone (DEX; 0...
December 29, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29319186/the-large-conductance-voltage-and-ca2-activated-k-channel-and-its-%C3%AE-1-subunit-modulate-mouse-uterine-artery-function-during-pregnancy
#15
Ramón A Lorca, Monali Wakle-Prabagaran, William E Freeman, Meghan K Pillai, Sarah K England
Insufficient vasodilation of the uterine artery (UA) during pregnancy leads to poor utero-placental perfusion, contributing to intrauterine growth restriction and fetal loss. Activity of the large conductance Ca2+ -activated K+ (BKCa ) channel increases in the UA during pregnancy, and its inhibition reduces uterine blood flow, highlighting a role of this channel in UA adaptation to pregnancy. The auxiliary γ1-subunit increases BKCa activation in vascular smooth muscle, but its role in pregnancy-associated UA remodelling is unknown...
January 10, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29317256/nandrolone-combined-with-strenuous-resistance-training-reduces-vascular-nitric-oxide-bioavailability-and-impairs-endothelium-dependent-vasodilation
#16
Vinicius Guzzoni, Tatiana Sousa Cunha, Vander José das Neves, Larissa Briet, Rafaela Costa, Maria José Costa Sampaio Moura, Vanessa Oliveira, Maria do Carmo Pinho Franco, Pedro Duarte Novaes, Fernanda Klein Marcondes
Anabolic Androgenic Steroids (AASs) misuse has increased among adolescents and recreational athletes due to their potential effects on muscle hypertrophy. On the other hand, AAS might induce alterations on cardiovascular system, although some controversies regarding AAS on vascular properties remain unknown. To address this question, we aimed to investigate the effects of high doses of nandrolone combined with strenuous resistance training (RT) on function and structure of thoracic aorta. Rats were randomized into four groups: non-trained vehicle (NTV), trained vehicle (TV), non-trained nandrolone (NTN), and trained nandrolone (TN), and submitted to 6 weeks of treatment with nandrolone (5mg/kg, twice a week) and/or resistance training...
January 6, 2018: Steroids
https://www.readbyqxmd.com/read/29314204/telmisartan-ameliorates-vascular-endothelial-dysfunction-in-coronary-slow-flow-phenomenon-csfp
#17
Zhe Jin, Qindong Tan, Bei Sun
Coronary slow flow phenomenon (CSFP) is a coronary microvascular disorder with an increasing morbidity, and currently, available therapies are of limited clinical value for its cure. Hence, it is urgent to find a novel approach to CSFP treatment. Several studies show that endothelial dysfunction plays a critical role in the aetiology of CSFP. Telmisartan (TMST) is a clinically available anti-hypertensive medicine and has shown its potential properties for improving vascular endothelial function. Thus, we aimed to investigate the effect of TMST on endothelial dysfunction in CSFP, Endothelial-dependent flow-mediated vasodilation, serum levels of nitric oxide, adiponectin, and endothelin-1 were surveyed before and after 3 months of TMST treatment...
January 2018: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/29313164/treatment-of-nonocclusive-mesenteric-ischemia-with-type-b-aortic-dissection-using-intra-arterial-catheterization-after-trauma-surgery-case-report
#18
Sho Fujiwara, Yuki Sekine, Ryuichi Nishimura, Kazuya Tadasa, Shukichi Miyazaki
BACKGROUND: Nonocclusive mesenteric ischemia (NOMI) is a mesenteric arterial spasm and intestinal ischemia. This disease is a highly lethal disease because diagnosis and decision of appropriate treatments are often difficult. Operations cannot resolve the spasms and may worsen the situation. However, the safety and effectiveness of catheterization for NOMI with aortic dissection (AD) have not yet been elucidated. Here, we report a successful case of early diagnosis and treatment of NOMI with type B AD involving the superior mesenteric artery (SMA) using the intra-arterial infusion of a vasodilator via the SMA...
January 8, 2018: Surgical Case Reports
https://www.readbyqxmd.com/read/29311764/effects-of-beetroot-juice-supplementation-on-intermittent-high-intensity-exercise-efforts
#19
REVIEW
Raúl Domínguez, José Luis Maté-Muñoz, Eduardo Cuenca, Pablo García-Fernández, Fernando Mata-Ordoñez, María Carmen Lozano-Estevan, Pablo Veiga-Herreros, Sandro Fernandes da Silva, Manuel Vicente Garnacho-Castaño
Beetroot juice contains high levels of inorganic nitrate (NO3-) and its intake has proved effective at increasing blood nitric oxide (NO) concentrations. Given the effects of NO in promoting vasodilation and blood flow with beneficial impacts on muscle contraction, several studies have detected an ergogenic effect of beetroot juice supplementation on exercise efforts with high oxidative energy metabolism demands. However, only a scarce yet growing number of investigations have sought to assess the effects of this supplement on performance at high-intensity exercise...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29310997/neurohormonal-imbalance-a-neglected-problem-and-potential-therapeutic-target-in-acute-heart-failure
#20
Steven R Goldsmith, Bradley A Bart, Ileana L Piña
Decompensated or acute heart failure (AHF) is characterized by increased ventricular and atrial pressures which may lead to and be caused by circulatory congestion. Unless due to a primary decrease in cardiac function, congestion arises from volume expansion or vasoconstriction. In turn, volume expansion and vasoconstriction are due to neurohormonal imbalance since both result from activation of the sympathetic nervous system, the renin-angiotensin-aldosterone axis and excess secretion of arginine vasopressin...
December 16, 2017: Current Problems in Cardiology
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