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Hypertension stress

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https://www.readbyqxmd.com/read/29331564/direct-renin-inhibition-is-not-enough-to-prevent-reactive-oxygen-species-generation-and-vascular-dysfunction-in-renovascular-hypertension
#1
Alisson Martins-Oliveira, Danielle A Guimaraes, Carla S Ceron, Elen Rizzi, Diogo M M Oliveira, Carlos R Tirapelli, Dulce E Casarini, Fernanda B Fernandes, Lucas C Pinheiro, Jose E Tanus-Santos
Renin-angiotensin system activation promotes oxidative stress and endothelial dysfunction. However, no previous study has examined the effects of the renin inhibitior aliskiren, either alone or combined with angiotensin II type 1 antagonists on alterations induced by two-kidney, one-clip (2K1C) hypertension. We compared the vascular effects of aliskiren (50mg/kg/day), losartan (10mg/kg/day), or both by gavage for 4 weeks in 2K1C and control rats. Treatment with losartan, aliskiren, or both exerted similar antihypertensive effects...
January 10, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29330970/gamma-glutamyl-transferase-activity-as-a-predictive-marker-for-severity-of-obstructive-sleep-apnea-syndrome-and-concomitant-hypertension
#2
Bozkus Fulsen
BACKGROUND: Chronic intermittent hypoxia, inflammation and oxidative stress are involved in resultant obstructive sleep apnea syndrome (OSAS), which may affect numerous regulatory mechanisms that play a role in the regulation of blood pressure. Gamma glutamyl transferase (GGT) is a novel marker in the prediction of cardiovascular risk. OBJECTIVE: The objective of this study was to investigate the correlation of serum levels of GGT with hypertension and the degree of the upper airway obstruction in subjects with OSAS...
January 13, 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29327600/population-based-serum-omentin-1-levels-paradoxical-association-with-cardiometabolic-disorders-primarily-in-men
#3
Altan Onat, Evin Ademoglu, Yusuf Karadeniz, Gunay Can, Ahmet Okan Uzun, Barıs Simsek, Aysem Kaya
AIM: The conflicting relationships of serum omentin with inflammation markers and cardiometabolic disorders were investigated. Results & methodology: Unselected 864 population-based middle-aged adults were cross-sectionally studied by sex-specific omentin tertiles. Men in the lowest omentin tertile (T1) had lower systolic blood pressure, HbA1c and glucose values and tended in T3 to higher lipoprotein(a) levels. Logistic regression analysis, adjusted for four covariates, revealed significant independent associations with the presence of hypertension and diabetes only in men...
January 12, 2018: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29326821/age-sex-and-gene-expression-score-identifies-a-symptomatic-nondiabetic-male-patient-as-being-at-high-risk-of-obstructive-coronary-artery-disease
#4
Ronald J Polinsky
In October 2015, a 74-year-old Caucasian male patient (past medical history of hyperlipidemia, paroxysmal atrial fibrillation, hypertension, and hypothyroidism) presented to the cardiologist for follow-up outpatient evaluation of exertional chest pain. The patient had recently been seen at the Emergency Department for the same complaint. At that time, the patient's cardiac markers, EKG, and pharmacological nuclear stress testing were all reported as normal. At presentation to the cardiologist, the patient's physical examination findings were unremarkable...
2018: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29326065/hydrogen-sulfide-supplement-attenuates-the-apoptosis-of-retinal-ganglion-cells-in-experimental-glaucoma
#5
Shouyue Huang, Ping Huang, Zhongjing Lin, Xiaohong Liu, Xing Xu, Lei Guo, Xi Shen, Changwei Li, Yisheng Zhong
Glaucoma is a group of neurodegenerative eye diseases characterized by progressive impairment of visual function due to loss of retinal ganglion cells (RGC). As hydrogen sulfide (H2S) was reported to play a role in the process of glaucomatous neuropathy and improve RGC survival in experimental glaucoma, the authors aimed to investigate the anti-apoptosis effect of H2S supplement in a rat glaucoma model, and further tried to explore the involved factors in the neuroprotection. A chronic ocular hypertension (COH) rat model induced by intracameral injection of cross-linking hydrogel was employed to simulate glaucoma and 288 rats were subjected to experimental procedures in the present study...
January 8, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29324613/racial-disparities-in-adverse-pregnancy-outcomes-and-psychosocial-stress
#6
William A Grobman, Corette B Parker, Marian Willinger, Deborah A Wing, Robert M Silver, Ronald J Wapner, Hyagriv N Simhan, Samuel Parry, Brian M Mercer, David M Haas, Alan M Peaceman, Shannon Hunter, Pathik Wadhwa, Michal A Elovitz, Tatiana Foroud, George Saade, Uma M Reddy
OBJECTIVE: To assess the relationships between self-reported psychosocial stress and preterm birth, hypertensive disease of pregnancy, and small-for-gestational-age (SGA) birth and to assess the extent to which these relationships account for racial and ethnic disparities in these adverse outcomes. METHODS: Self-reported measures of psychosocial stress (perceived stress, depression, racism, anxiety, resilience, and social support) were collected during pregnancy among a racially and ethnically diverse cohort of women enrolled in a prospective observational study of nulliparous women with singleton pregnancies, from eight clinical sites across the United States, between October 2010 and May 2014...
January 9, 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29322430/serum-copper-homeostasis-in-hypertensive-intracerebral-hemorrhage-and-its-clinical-significance
#7
Ming Han, Shan Ding, Yuan Zhang, Zhexuan Lin, Kangsheng Li
This study was to investigate the alterations of serum copper homeostasis after hypertensive intracerebral hemorrhage (ICH), which is not yet clear. We recruited 85 hypertensive ICH patients and determined their serum levels of total copper (TCu), small molecule copper (SMC), and ceruloplasmin (Cp). Sera from 32 healthy persons and 12 primary hypertension patients were collected and analyzed as well. Serum TCu levels in ICH patients were tested at three time points (on admission, day 3, and day 7) and found to be higher than that in hypertension patients (p < 0...
January 11, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29321950/manifestations-of-renal-impairment-in-fructose-induced-metabolic-syndrome
#8
Kameliya Bratoeva, George S Stoyanov, Albena Merdzhanova, Mariya Radanova
Introduction International studies show an increased incidence of chronic kidney disease (CKD) in patients with metabolic syndrome (MS). It is assumed that the major components of MS - obesity, insulin resistance, dyslipidemia, and hypertension - are linked to renal damage through the systemic release of several pro-inflammatory mediators, such as uric acid (UA), C-reactive protein (CRP), and generalized oxidative stress. The aim of the present study was to investigate the extent of kidney impairment and manifestations of dysfunction in rats with fructose-induced MS...
November 7, 2017: Curēus
https://www.readbyqxmd.com/read/29321123/comparative-analysis-of-women-with-notable-subjective-health-indicators-compared-with-participants-in-the-australian-longitudinal-study-on-women-s-health-cross-sectional-survey
#9
Christoph Schnelle, Eunice J Minford, Vanessa McHardy, Jane Keep
BACKGROUND: At least six communities with unusually good health and longevity have been identified, but their lifestyles aren't adopted widely. Informal evidence suggests that women associated with Universal Medicine (UM), a complementary medicine health care organization in Eastern Australia and the United Kingdom with normal lifestyles, also have several unusual health indicators. OBJECTIVE: Our objective was to determine how UM participants compared with women in the Australian population at large on a variety of health indicators...
January 10, 2018: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/29320472/subjective-complaints-of-ocular-dryness-and-xerostomia-among-the-non-sj%C3%A3-gren-adult-population-of-lublin-region-poland
#10
Renata Chałas, Dorota Rykwa, Dominika Wróbel-Dudzińska, Tomasz Żarnowski
BACKGROUND Eye and mouth dryness are the most common symptoms reported during ophthalmological and dental examinations, and their frequency increases with age. In connection with population aging and the huge variety of factors and conditions that can induce this condition, it is becoming a serious and growing problem. The purpose of the present study was to determine whether ocular dryness and concomitant xerostomia is associated with particular systemic diseases. MATERIAL AND METHODS We enrolled 642 non-Sjögren patients referred for examination to the ophthalmology or dental clinic of Lublin region, Poland...
January 10, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29316855/the-role-of-noninvasive-cardiovascular-testing-applied-clinical-nutrition-and-nutritional-supplements-in-the-prevention-and-treatment-of-coronary-heart-disease
#11
Mark Houston
Numerous clinical trials suggest that we have reached a limit in our ability to decrease the incidence of coronary heart disease (CHD) and cardiovascular disease (CVD) utilizing the traditional diagnostic evaluation, prevention and treatment strategies for the top five cardiovascular risk factors of hypertension, diabetes mellitus, dyslipidemia, obesity and smoking. About 80% of heart disease (heart attacks, angina, coronary heart disease and congestive heart failure) can be prevented by optimal nutrition, optimal exercise, optimal weight and body composition, mild alcohol intake and avoiding smoking...
January 1, 2018: Therapeutic Advances in Cardiovascular Disease
https://www.readbyqxmd.com/read/29315230/maternal-high-fructose-intake-increases-the-vulnerability-to-post-weaning-high-fat-diet-induced-programmed-hypertension-in-male-offspring
#12
You-Lin Tain, Wei-Chia Lee, Kay L H Wu, Steve Leu, Julie Y H Chan
Widespread consumption of high-fructose and high-fat diets relates to the global epidemic of hypertension. Hypertension may originate from early life by a combination of prenatal and postnatal nutritional insults. We examined whether maternal high-fructose diet increases vulnerability to post-weaning high-fructose or high-fat diets induced hypertension in adult offspring and determined the underlying mechanisms. Pregnant Sprague-Dawley rats received regular chow (ND) or chow supplemented with 60% fructose (HFR) during the entire pregnancy and lactation periods...
January 9, 2018: Nutrients
https://www.readbyqxmd.com/read/29313304/essential-hypertension-and-functional-microvascular-ageing
#13
REVIEW
Rosa Maria Bruno, Stefano Masi, Marco Taddei, Stefano Taddei, Agostino Virdis
In healthy conditions, the endothelium plays a pivotal role in maintaining vascular homeostasis, mainly by the production of the relaxing factor nitric oxide (NO), which protects the vessel wall from those mechanisms favouring the development of vascular atherosclerosis. Aging is a powerful cardiovascular risk factors associated with endothelial dysfunction. In details, an alteration in the NO substrate L-arginine is the major factor responsible for endothelial dysfunction with advancing age, while reactive oxygen species (ROS) excess generation, which in turn reduce NO availability, plays a role in oldest individuals only...
January 9, 2018: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/29306907/new-aspects-in-the-pathomechanism-of-diseases-of-civilization-particularly-psychosomatic-disorders-part-2-chronic-hypocapnia-and-hypercapnia-in-the-medical-practice
#14
Andras Sikter, Zoltan Rihmer, Roberto de Guevara
The authors seek to find new connections between recent results of biology and older theories. This paper aims to assemble the jigsaw puzzle. The theoretical background of the hypothesis was described in the previous issue of the journal (Sikter et al. 2017a). Human stress response often coexists with persistent hypocapnia or hypercapnia - developing via psychosomatic pathomechanism - which can lead to mental and psychosomatic illnesses. Chronic hypocapnia mainly generates hyperarousal disorders which may be reversible for an extended time, however, vicious cycles may start when hypoxia and/or severe somatic diseases are simultaneously present (commonly in the elderly), which conditions often end with death without medical help...
September 2017: Neuropsychopharmacologia Hungarica
https://www.readbyqxmd.com/read/29306249/biomarker-and-shear-stress-in-secondary-pediatric-pulmonary-hypertension
#15
Ayhan Pektaş, Rana Olguntürk, Serdar Kula, Erman Çilsal, Ayşe Deniz Oğuz, Fatma Sedef Tunaoğlu
Background/aim: Endothelial dysfunction, tissue damage, inflammation, and microthrombosis are involved in the pathogenesis of pulmonary hypertension (PH), which may be present as a complication of congenital heart diseases. This study aims to identify how indicators of endothelial dysfunction (shear stress), tissue damage (brain natriuretic peptide and troponin T), inflammation (C-reactive protein (CRP)), and microthrombosis (D-dimer and von Willebrand factor) are altered in children with congenital left-to-right shunting...
December 19, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29305526/associations-of-neighbourhood-crime-with-adverse-pregnancy-outcomes-among-women-in-chicago-analysis-of-electronic-health-records-from-2009-to-2013
#16
Stephanie L Mayne, Lindsay R Pool, William A Grobman, Kiarri N Kershaw
BACKGROUND: Adverse pregnancy outcomes are associated with higher cardiovascular disease risk among mothers and future health problems of offspring. Neighbourhood crime may contribute to adverse pregnancy outcomes by increasing chronic stress, yet the association has been relatively understudied. METHODS: Electronic health records from 34 383 singleton births at a single hospital in Chicago (2009-2013) were geocoded and linked to 1-year rates of police-recorded crime at the neighbourhood (Chicago community area) level...
January 5, 2018: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/29290360/trimethylamine-n-oxide-a-harmful-protective-or-diagnostic-marker-in-lifestyle-diseases
#17
REVIEW
Artur Nowiński, Marcin Ufnal
Diet has been considered a general health determinant for many years. Recent research shows a connection between gut microbiota composition that is shaped by our diet and lifestyle diseases. Several studies point to a positive correlation between elevated plasma trimethylamine N-oxide (TMAO), a gut bacteria metabolite, and an increased risk for cardiovascular diseases, diabetes, and cancer. Therefore, it has been suggested that TMAO is a link between the diet, gut microbiota, and illness. Emerging experimental and clinical evidence shows that TMAO may be involved in the etiology of hypertension, atherosclerosis, coronary artery disease, diabetes, and renal failure...
February 2018: Nutrition
https://www.readbyqxmd.com/read/29289651/neutrophil-gelatinase-associated-lipocalin-from-immune-cells-is-mandatory-for-aldosterone-induced-cardiac-remodeling-and-inflammation
#18
Mathieu Buonafine, Ernesto Martínez-Martínez, Cristian Amador, Basile Gravez, Jaime Ibarrola, Amaya Fernández-Celis, Soumaya El Moghrabi, Patrick Rossignol, Natalia López-Andrés, Frédéric Jaisser
Immune system activation is involved in cardiovascular (CV) inflammation and fibrosis, following activation of the mineralocorticoid receptor (MR). We previously showed that Neutrophil Gelatinase-Associated Lipocalin (NGAL) is a novel target of MR signaling in CV tissue and plays a critical role in aldosterone/MR-dependent hypertension and fibrosis. We hypothesized that the production of NGAL by immune cells may play an important part in the mediation of these deleterious mineralocorticoid-induced effects. We analyzed the effect of aldosterone on immune cell recruitment and NGAL expression in vivo...
December 28, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29288667/chronic-sleep-disorder-induced-by-psychophysiological-stress-induces-glucose-intolerance-without-adipose-inflammation-in-mice
#19
Katsutaka Oishi, Sumika Ohyama, Sayaka Higo-Yamamoto
Sleep disturbances are associated with various metabolic diseases such as hypertension and diabetes. We had previously established a mouse model of a psychophysiological stress-induced chronic sleep disorder (CSD) characterized by disrupted circadian rhythms of wheel-running activity, core body temperature, and sleep-wake cycles. To evaluate the underlying mechanisms of metabolic disorders induced by CSD, we created mice with CSD for six weeks and fed them with a high-fat diet. Glucose intolerance with hyperglycemia resulted, although plasma insulin levels and body weight increases were identical between control and CSD mice...
December 28, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29287725/activated-protein-c-protects-against-pressure-overload-induced-hypertrophy-through-ampk-signaling
#20
Courtney Cates, Thomas Rousselle, Jinli Wang, Nanhu Quan, Lin Wang, Xu Chen, Likui Yang, Alireza R Rezaie, Ji Li
We found that the anticoagulant plasma protease, activated protein C (APC), stimulates the energy sensor kinase, AMPK, in the stressed heart by activating protease-activated receptor 1 (PAR1) on cardiomyocytes. Wild-type (WT) and AMPK-kinase dead (KD) transgenic mice were subjected to transverse aortic constriction (TAC) surgery. The results demonstrated that while no phenotypic differences can be observed between WT and AMPK-KD mice under normal physiological conditions, AMPK-KD mice exhibit significantly larger hearts after 4 weeks of TAC surgery...
December 26, 2017: Biochemical and Biophysical Research Communications
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