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https://www.readbyqxmd.com/read/29150946/lncrna-tcons_00034812-in-cell-proliferation-and-apoptosis-of-pulmonary-artery-smooth-muscle-cells-and-its-mechanism
#1
Yun Liu, Zengxian Sun, Jinquan Zhu, Bingxin Xiao, Jie Dong, Xiaomin Li
Long noncoding RNAs (lncRNAs) have been discovered to be playing important role in various biological processes. However, the contribution of lncRNAs to pulmonary artery hypertension (PAH) remains largely unknown. Pulmonary vascular remodeling is an important pathological feature of PAH, leading to increased vascular resistance and reduced compliance. Here, we investigated the biological role of lncRNAs in PAH. Differences in the lncRNAs and mRNAs between hypoxia PAH rats and normoxia rats were screened using microarray analysis...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150207/carotid-and-femoral-atherosclerosis-in-antiphospholipid-syndrome-equivalent-risk-with-diabetes-mellitus-in-a-case-control-study
#2
Evrydiki Kravvariti, George Konstantonis, Nikolas Tentolouris, Petros P Sfikakis, Maria G Tektonidou
BACKGROUND: Antiphospholipid syndrome (APS) may carry a worse prognosis for vascular complications when co-existing with subclinical atherosclerosis; however, the association between the two conditions remains ambiguous. METHODS: We evaluated ultrasonographic markers of subclinical atherosclerosis in carotid and femoral arteries of 86 patients with thrombotic APS [43 primary APS (PAPS), 43 systemic lupus erythematosus-associated APS (SLE/APS)], 86 patients with diabetes mellitus (DM) and 86 healthy controls, individually matched for age and gender, and investigated their associations with traditional and disease-related factors in APS...
October 23, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29150159/diagnostic-performance-of-pulmonary-capacitance-at-rest-and-during-exercise-in-idiopathic-pulmonary-arterial-hypertension
#3
Pankaj Jain, Sriram Rao, Peter Macdonald, Eugene Kotlyar, Andrew Jabbour, Christopher Hayward, Anne Keogh
BACKGROUND: Reliable markers of early disease are needed in pulmonary arterial hypertension (PAH). As measures of the contribution of abnormal vascular compliance to overall vascular resistance, resting and exercise pulmonary capacitance-defined as the stroke volume divided by the change in pulmonary pulse pressure-may be sensitive markers of early disease. METHODS: We examined all patients in our pulmonary hypertension database with idiopathic PAH, who had undergone rest and exercise right heart catheterisation in one sitting...
November 8, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29150155/the-association-of-functional-capacity-with-right-atrial-deformation-in-patients-with-pulmonary-arterial-hypertension-a-study-with-two-dimensional-speckle-tracking
#4
Weiwei Liu, Yueheng Wang, Jinling Zhou, Hui Bai, Feng Wang, Ju Wang
BACKGROUND: The purpose of this study was to assess right atrial (RA) myocardial mechanics in pulmonary hypertension (PH) patients using two-dimensional speckle tracking (2D-STE), and define the relationship between RA function and exercise capacity in PH patients. METHODS: Thirty-eight consecutive PH patients were studied and compared with a control group of 25 healthy volunteers. Peak atrial longitudinal strain (PALS), RA strain rate were measured in all subjects...
April 13, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29149815/stroke-and-hypertension-an-appraisal-from-pathophysiology-to-clinical-practice
#5
Agata Buonacera, Benedetta Stancanelli, Lorenzo Malatino
Stroke as a cause of long-term disability is a growing public health burden. Therefore, focusing on prevention is important. The most prominent aim of this strategy is to treat modifiable risk factors, such as arterial hypertension, the leading modifiable contributor to stroke. Thus, efforts to adequately reduce blood pressure (BP) among hypertensives are mandatory. In this respect, although safety and benefits of BP control related to long-term outcome have been largely demonstrated, there are open questions that remain to be addressed, such as optimal timing to initiate BP reduction and BP goals to be targeted...
November 16, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29149802/associations-of-short-term-exposure-to-ambient-air-pollutants-with-emergency-ambulance-calls-for-the-exacerbation-of-essential-arterial-hypertension
#6
Jone Vencloviene, Agne Braziene, Audrius Dedele, Kristina Lopatiene, Paulius Dobozinskas
We investigated the association between daily emergency ambulance calls (EAC) for elevated blood pressure that occurred during the time intervals of 8:00-13:59, 14:00-21:59, and 22:00-7:59, and exposure to CO, PM10, and ozone. We used Poisson regression to explore the association between the risk of EAC and short-term variation of pollutants, adjusting for seasonality and weather variables. Before noon, the risk was associated with an interquartile range (IQR) (7.9 μg/m(3)) increase in PM10 at lag 2-4 days below the median (RR = 1...
November 17, 2017: International Journal of Environmental Health Research
https://www.readbyqxmd.com/read/29148534/genetic-testing-of-complement-and-coagulation-pathways-in-patients-with-severe-hypertension-and-renal-microangiopathy
#7
Christopher P Larsen, Jon D Wilson, Alejandro Best-Rocha, Marjorie L Beggs, Randolph A Hennigar
A diagnosis of thrombotic microangiopathy on kidney biopsy in a patient presenting with hypertensive emergency has historically elicited the diagnosis of malignant hypertension-associated thrombotic microangiopathy. Recent studies, however, have raised awareness that a number of these patients may actually represent atypical hemolytic uremic syndrome. To further investigate this premise, we performed next-generation sequencing to interrogate the coding regions of 29 complement and coagulation cascade genes associated with atypical hemolytic uremic syndrome in 100 non-elderly patients presenting with severe hypertension, renal failure and a kidney biopsy showing microangiopathic changes limited to the classic accelerated hypertension-associated lesion of arterial intimal edema ('mucoid intimal hyperplasia') in isolation and without accompanying glomerular microthrombi...
November 17, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29148061/endocannabinoids-modulate-gq-11-protein-coupled-receptor-agonist-induced-vasoconstriction-via-a-negative-feedback-mechanism
#8
REVIEW
Olga Karpińska, Marta Baranowska-Kuczko, Monika Kloza, Hanna Kozłowska
OBJECTIVES: The endocannabinoid (eCB) system centrally and peripherally regulates cardiovascular parameters, including blood pressure, in health and disease. The relationship between Gq/11 protein-coupled receptor activation, regulation of eCBs release (mainly 2-arachidonoylglycerol) and subsequent CB1 receptor activation was initially observed in the central nervous system. Here, we review the latest findings from systemic physiological studies which include for the first time data from pulmonary arteries...
November 17, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/29147768/non-invasive-methods-for-estimating-mpap-in-copd-using-cardiovascular-magnetic-resonance-imaging
#9
C S Johns, S Rajaram, D A Capener, C Oram, C Elliot, R Condliffe, D G Kiely, J M Wild, A J Swift
PURPOSE: Pulmonary hypertension (PH) is associated with a poor outcome in chronic obstructive pulmonary disease (COPD) and is diagnosed invasively. We aimed to assess the diagnostic accuracy and prognostic value of non-invasive cardiovascular magnetic resonance (CMR) models. METHODS: Patients with COPD and suspected PH, who underwent CMR and right heart catheter (RHC) were identified. Three candidate models were assessed: 1, CMR-RV model, based on right ventricular (RV) mass and interventricular septal angle; 2, CMR PA/RV includes RV mass, septal angle and pulmonary artery (PA) measurements; 3, the Alpha index, based on RV ejection fraction and PA size...
November 16, 2017: European Radiology
https://www.readbyqxmd.com/read/29147570/management-of-an-acute-catecholamine-induced-cardiomyopathy-and-circulatory-collapse-a-multidisciplinary-approach
#10
R T Casey, B G Challis, D Pitfield, R M Mahroof, N Jamieson, C J Bhagra, A Vuylsteke, S J Pettit, K C Chatterjee
A phaeochromocytoma (PC) is a rare, catecholamine-secreting neuroendocrine tumour arising from the adrenal medulla. Presenting symptoms of this rare tumour are highly variable but life-threatening multiorgan dysfunction can occur secondary to catecholamine-induced hypertension or hypotension and subsequent cardiovascular collapse. High levels of circulating catecholamines can induce an acute stress cardiomyopathy, also known as Takotsubo cardiomyopathy. Recent studies have focused on early diagnosis and estimation of the prevalence of acute stress cardiomyopathy in patients with PC, but very little is reported about management of these complex cases...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29147168/study-of-the-characteristics-of-pulmonary-trunk-in-pulmonary-hypertension-secondary-to-left-heart-disease-using-pressure-velocity-loops-pu-loops
#11
Shizuo Hanya, Kengo Yoshii, Motoaki Sugawara
Objectives: Although pulmonary hypertension (PH) caused by left heart disease (PH-LHD) is more common in PH, little is known about its properties of pulmonary artery (PA) in PH-LHD. The purpose of this study was to measure pulmonary regional pulse wave velocity (PWV) and to quantify the magnitude of reflected waves in patients with PH-LHD by the analysis of the pressure-velocity loops (PU-loop). Methods: High-fidelity PA pressure (Pm) and PA velocity (Vm) were measured in 11 subjects with PH-LHD (mean Pm>25 mmHg), 1 subject with atrial septal defect (ASD) without PH and 12 control subjects, using multisensor catheters...
September 25, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29146879/2-cl-mgv-1-ameliorates-apoptosis-in-the-thalamus-and-hippocampus-and-cognitive-deficits-after-cortical-infarct-in-rats
#12
Yicong Chen, Leo Veenman, Sukhdev Singh, Fubing Ouyang, Jiahui Liang, Weixian Huang, Ilan Marek, Jinsheng Zeng, Moshe Gavish
BACKGROUND AND PURPOSE: Focal cortical infarction causes neuronal apoptosis in the ipsilateral nonischemic thalamus and hippocampus, which is potentially associated with poststroke cognitive deficits. TSPO (translocator protein) is critical in regulating mitochondrial apoptosis pathways. We examined the effects of the novel TSPO ligand 2-(2-chlorophenyl)quinazolin-4-yl dimethylcarbamate (2-Cl-MGV-1) on poststroke cognitive deficits, neuronal mitochondrial apoptosis, and secondary damage in the ipsilateral thalamus and hippocampus after cortical infarction...
November 16, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29146865/echocardiographic-changes-with-non-invasive-ventilation-and-cpap-in-obesity-hypoventilation-syndrome
#13
Jaime Corral, Maria Victoria Mogollon, M-Ángeles Sánchez-Quiroga, Javier Gómez de Terreros, Auxiliadora Romero, Candela Caballero, Joaquin Teran-Santos, María L Alonso-Álvarez, Teresa Gómez-García, Mónica González, Soledad López-Martínez, Pilar de Lucas, José M Marin, Odile Romero, Trinidad Díaz-Cambriles, Eusebi Chiner, Carlos Egea, Roberto M Lang, Babak Mokhlesi, Juan F Masa
RATIONALE: Despite a significant association between obesity hypoventilation syndrome (OHS) and cardiac dysfunction, no randomised trials have assessed the impact of non-invasive ventilation (NIV) or CPAP on cardiac structure and function assessed by echocardiography. OBJECTIVES: We performed a secondary analysis of the data from the largest multicentre randomised controlled trial of OHS (Pickwick project, n=221) to determine the comparative efficacy of 2 months of NIV (n=71), CPAP (n=80) and lifestyle modification (control group, n=70) on structural and functional echocardiographic changes...
November 16, 2017: Thorax
https://www.readbyqxmd.com/read/29146760/blepharitis-as-an-early-sign-of-metabolic-syndrome-a-nationwide-population-based-study
#14
Chia-Yi Lee, Hung-Chi Chen, Hui-Wen Lin, Jing-Yang Huang, Shih-Chun Chao, Chao-Bin Yeh, Hung-Yu Lin, Shun-Fa Yang
BACKGROUND: To investigate the relationship between blepharitis and metabolic syndrome (MetS) by using the Longitudinal Health Insurance Database (LHID) of Taiwan. METHODS: This retrospective cohort study was conducted using data collected from the LHID for the period from 2009 to 2013. This study enrolled patients who received a diagnosis of blepharitis according to the International Classification of Diseases, Ninth Revision, diagnostic code. The exclusion criteria were legal blindness, eyeball removal, ocular tumours prior to the diagnosis of blepharitis, and patients diagnosed with blepharitis and initiated antibiotic treatment concurrently...
November 16, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29146614/heart-rate-reduction-improves-biventricular-function-and-interactions-in-experimental-pulmonary-hypertension
#15
Olga Gomez, Kenichi Okumura, Osami Honjo, Mei Sun, Ryo Ishii, Bart Bijens, Mark K Friedberg
OBJECTIVES: To investigate mechanisms of heart rate (HR) reduction on biventricular function and interactions in experimental pulmonary arterial hypertension (PAH). METHODS: We compared cardiac-cycle mechanics and interventricular interactions in 15 sham, 8 monocrotaline-PAH, 9 PAH+carvedilol and 8 PAH+ivabradine rats. We used echocardiography to assess biventricular function, timing of cardiac- cycle events and septal position in PAH rats; and related HR reduction effect on biventricular function measured by echocardiography and conductance catheter...
November 16, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29146573/prostanoid-ep4-agonist-l-902-688-activates-ppar%C3%AE-and-attenuates-pulmonary-arterial-hypertension
#16
Hsin-Hsien Li, Hsao-Hsun Hsu, Gwo-Jyh Chang, I-Chen Chen, Wan-Jing Ho, Pei-Chen Hsu, Wei-Jan Chen, Jong-Hwei Su Pang, Chung-Chi Huang, Ying-Ju Lai
Prostacyclin agonists that bind the prostacyclin receptor (IP) to stimulate cyclic adenosine monophosphate (cAMP) synthesis are effective vasodilators for the treatment of idiopathic pulmonary arterial hypertension (IPAH) but this signaling may occur through nuclear peroxisome proliferator-activated receptor-gamma (PPARγ). There is evidence of scant IP and PPARγ expression but stable prostanoid EP4 receptor (EP4) expression in IPAH patients. Both IP and EP4 functionally couple with stimulatory G protein (Gs), which activate signal transduction...
November 16, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29146416/fulminant-adrenergic-myocarditis-complicated-by-pulmonary-edema-cardiogenic-shock-and-cardiac-arrest
#17
Pawel Rostoff, Bohdan Nessler, Patrycja Pikul, Karolina Golinska-Grzybala, Tomasz Miszalski-Jamka, Jadwiga Nessler
Adrenergic myocarditis is an uncommon presentation of pheochromocytoma and extremely rare cause of de novo acute heart failure (AHF). We present a case of a 31-year-old Caucasian woman with a history of hypertension and recurrent occipital headaches who was admitted to the emergency department due to severe de novo AHF presenting as pulmonary edema and cardiogenic shock. During the hospital admission the patient experienced asystolic cardiac arrest and was successfully resuscitated, intubated, and mechanically ventilated...
November 10, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29146157/angiotensin-converting-enzyme-2-activation-ameliorates-pulmonary-endothelial-dysfunction-in-rats-with-pulmonary-arterial-hypertension-through-mediating-phosphorylation-of-endothelial-nitric-oxide-synthase
#18
Gang Li, Han Zhang, Lei Zhao, Yaozhong Zhang, Daole Yan, Yinglong Liu
This study aims to investigate the effect of angiotensin-converting enzyme 2 (ACE2) activation on pulmonary endothelial function in the process of preventing pulmonary arterial hypertension (PAH) in rat models and to explore the underlying mechanisms. Specific pathogen free rats were randomly divided into five groups including control group, PAH group, PAH + Resorcinolnaphthalein (Res) group (ACE2 activation), PAH + Res + MLN4760 group (ACE2 inhibition), and PAH + Res + L-NAME group (endothelial nitric oxide synthase [eNOS] inhibition)...
October 28, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/29146141/the-myth-of-water-and-salt-from-aquaretics-to-tenapanor
#19
REVIEW
Luca Visconti, Valeria Cernaro, Sebastiano Calimeri, Antonio Lacquaniti, Francesca De Gregorio, Carlo Alberto Ricciardi, Viviana Lacava, Domenico Santoro, Michele Buemi
The impact of water intake has been studied in several renal diseases. For example, increasing water intake is useful to prevent primary and secondary nephrolithiasis. In autosomal dominant polycystic kidney disease, arginine vasopressin (AVP) is involved in the progression of the disease, and water intake could play a therapeutic role by inhibiting the synthesis of AVP, but its efficacy is still controversial. Conversely, the use of aquaretics, which are antagonists of AVP V2 receptors, results in the reduction of the increase rate of total kidney volume with a slower decline of glomerular filtration rate...
November 14, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29145709/defining-a-unified-vascular-phenotype-in-systemic-sclerosis
#20
REVIEW
Yannick Allanore, Oliver Distler, Marco Matucci-Cerinic, Christopher P Denton
Microcirculation impairment and related vasculopathy is a hallmark of systemic sclerosis. Digital ulcers are second only to Raynaud's phenomenon as a vascular complication occurring in scleroderma patients. Digital ulcers are painful and generate disability. Furthermore, patients may develop recurrent digital ulcers and one may ask whether the outcomes of such patients might be different to those of unaffected ones. Recently several registries have provided relevant information about digital ulcers. Male sex and severe skin disease seem to be the main associated factors observed in several registries...
November 16, 2017: Arthritis & Rheumatology
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