Sodium/lithium countertransport and intracellular calcium concentration in patients with essential hypertension and coronary heart disease

2003 ◽  
Vol 104 (3) ◽  
pp. 323-327
Author(s):  
Sybille GRUSKA ◽  
Ingo JENDRAL ◽  
Rainer RETTIG ◽  
Günter KRAATZ
Keyword(s):  
Coronary Heart Disease ◽  
Heart Disease ◽  
Essential Hypertension ◽  
Intracellular Calcium ◽  
Calcium Concentration ◽  
Calcium Signalling ◽  
Intracellular Calcium Concentration ◽  
Diabetic Patients ◽  
Hypertensive Patients ◽  
Increased Risk

The present study was designed to test the hypothesis that enhanced intracellular calcium signalling and increased sodium/lithium countertransport (Na+/Li+ CT) activity may be associated with coronary heart disease (CHD) in non-diabetic patients with essential hypertension. Platelet-activating factor (PAF)-evoked rises in the intracellular calcium concentration ([Ca2+]i) were measured in Epstein–Barr-virus-immortalized lymphoblasts from 62 hypertensive patients with CHD and 34 patients without CHD. Na+/Li+ CT activity was assessed in erythrocytes from 80 hypertensive patients with CHD and 46 patients without CHD. Baseline values of unstimulated and PAF-stimulated [Ca2+]i were not significantly different between hypertensive subjects with (baseline, 126±5nmol/l; stimulated, 550±43nmol/l) and without (baseline, 125±5nmol/l; stimulated, 654±105nmol/l) CHD. Similarly, Na+/Li+ CT activity was not significantly different between the two groups (patients with CHD, 219±8µmol·l-1·h-1; patients without CHD, 234±10µmol·l-1·h-1). We conclude that intracellular signal transduction, as indicated by PAF-induced rises in [Ca2+]i and Na+/Li+ CT activity, is not associated with an increased risk of CHD in non-diabetic patients with essential hypertension.

scholarly journals Comparative Study between Diabetic and non- Diabetic Patients Regarding Prevalence of Coronary Artery Disease and Plaque Composition by Multi-detector CT Coronary Angiography

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
H A Morsy ◽  
L A Habib ◽  
E H Abdeldayem ◽  
A I Sayed
Keyword(s):  
Myocardial Infarction ◽  
Coronary Artery Disease ◽  
Coronary Heart Disease ◽  
Heart Disease ◽  
Coronary Artery ◽  
Diabetic Group ◽  
Diabetic Patients ◽  
Increased Risk ◽  
Artery Disease ◽  
Msct Angiography

Abstract Diabetes is known to be a major cardiovascular risk factor associated with significantly increased morbidity and mortality and particularly increased risk of major cardiac events especially myocardial infarction as a manifestation of highly incident coronary artery disease (CAD).This can lead to decreased life expectation and life quality. Major cause for myocardial infarction is plaque rupture. Prevalence of obstructive and non-obstructive plaques is increased in diabetic patients. Background and Objectives The prevalence of coronary heart disease in diabetic patients compared to non- diabetics and evaluating the composition of the plaque in diseased individuals in both groups by usage of multislice computed tomography (MSCT) angiography . Subjects and Methods A total of 80 consecutive MSCT angiography examinations were performed between August 2017 and June 2018. Of these, the patients were evaluated for the presence and type of atherosclerotic plaque and severity of luminal narrowing. Results Eighty (40 in the diabetic group and 40 in the non-diabetic group) patients underwent MSCT angiography with DM prevalence of 0.212 (95% Cl for AOR 0.056 -1.896). Among them, 20 patients (50 %) in the diabetic group and 14 patients (35 %) in the non-diabetic group had +ve coronary heart disease, 33.3 % had significant and moderately significant coronary narrowing on diabetic group and 31.3 % in non-diabetic group on MSCT angiography. Diabetic patients had more soft plaque compared with non-diabetic patients. Conclusion DM is not an independent factor for the disease occurrence in coronary artery disease but is a dependent factor in the association of other risk factors such as smoking ,hypertension and dyslipidemia.

scholarly journals Protocol of an Observational Study Based on the Prevalence of Essential Hypertension in Different Types of Prakruti in Wardha City, India

2021 ◽  
pp. 161-166
Author(s):  
Disha Bhatero ◽  
Punam Sawarkar ◽  
Vaishnavi Paraskar ◽  
Gaurav Sawarkar
Keyword(s):  
Blood Pressure ◽  
Coronary Heart Disease ◽  
Heart Disease ◽  
Essential Hypertension ◽  
Adverse Effects ◽  
Observational Study ◽  
Systolic Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Hypertensive Patients ◽  
Different Types

Background: In 2000, 26.4% people of the society were suffering hypertension in the globe and around 29.2% are considered to have hypertension till 2025. Coronary Heart Disease, Stroke and other vascular disorders are the adverse effects of hypertension. Hypertension is taxonomically adjacent to UchchaRakta Tapa in Ayurveda. Prakrutiis the morphological, physiological, and psychological basic traits, manifested in the intrauterine life and is said to be unchangeable throughout life. Objectives: The present study aims to observe the Prevalence of Essential Hypertension in different types of Prakruti to differentiate Systolic blood pressure and Diastolic blood pressure according to various Prakruti in the population of Wardha city and contribute to knowledge in this population regarding Essential Hypertension and its relation with Prakruti. Materials and Methods: Wardha. Data collected in from the hypertensive patients in Wardha district by personal interviews based on the Prakruti Questionnaires. Results: The results will be concluded on the basis of observations drawn from the collected information.

scholarly journals Role of lipoprotein(a) in the development of coronary heart disease in patients with essential hypertension

2003 ◽  
Vol 22 (4) ◽  
pp. 341-346 ◽  
Author(s):  
Zorica Caparevic ◽  
Nada Kostic ◽  
Sinisa Dimkovic ◽  
Branislava Brkic ◽  
Radojka Cvetkovic
Keyword(s):  
Coronary Heart Disease ◽  
Heart Disease ◽  
Essential Hypertension ◽  
Cardiovascular Risk ◽  
Hdl Cholesterol ◽  
Serum Samples ◽  
Hypertensive Patients ◽  
Lipoprotein A ◽  
Fresh Serum

Lipoprotein(a) [Lp(a)] is an important and independent cardiovascular risk factor, but its role in the development of coronary heart disease (CHD) in hypertensives have had conflicting results. In order to study the possible role of Lp(a) in the development of coronary heart disease in hypertensive patients, we evaluated Lp(a) levels in 45 (younger than 50 years) CHD hypertensive patients, 45 patients with essential hypertension with?out CHD and 64 healthy controls. Lp(a) was measured by nephelometric assays in fresh serum samples. The levels of Lp(a) were significantly greater in CHD hypertensive patients (0.33 ?0.17 g/L) than in controls (0.18 ? 0.08 g/L) or patients with essential hypertension (0.20 ? 0.05 g/L). The levels of Lp(a) were increased more than 0.30 g/L in 46.6% of CHD hypertensive patiens, in 17.7% of hypertensive patiens and in 8.8% of controls. CHD hypertensive patients had also greater levels of total cholesterol, LDL-cholesterol and triglycerides than hypertensive patients and controls. HDL-cholesterol levels were significantly lower in CHD hypertensive patients. This study indicates that high Lp(a) levels can play a major role in the development of CHD in patients with essential hypertension. These findings suggest the great importance of identifying, among hypertensive patients, subjects with higher levels of Lp(a), who belong to a group with cardiovascular risk on the basis of their hypertension.

scholarly journals The interdependence of endothelin-1 and calcium: a review

2010 ◽  
Vol 119 (9) ◽  
pp. 361-372 ◽  
Author(s):  
Nathan R. Tykocki ◽  
Stephanie W. Watts
Keyword(s):  
Intracellular Calcium ◽  
Calcium Concentration ◽  
Calcium Influx ◽  
Calcium Signalling ◽  
Intracellular Calcium Concentration ◽  
Future Research ◽  
Endothelin 1 ◽  
Calcium Dependent ◽  
Amino Acid Peptide ◽  
Physiological Processes

The 21-amino-acid peptide ET-1 (endothelin-1) regulates a diverse array of physiological processes, including vasoconstriction, angiogenesis, nociception and cell proliferation. Most of the effects of ET-1 are associated with an increase in intracellular calcium concentration. The calcium influx and mobilization pathways activated by ET-1, however, vary immensely. The present review begins with the basics of calcium signalling and investigates the different ways intracellular calcium concentration can increase in response to a stimulus. The focus then shifts to ET-1, and discusses how ET receptors mobilize calcium. We also examine how disease alters calcium-dependent responses to ET-1 by discussing changes to ET-1-mediated calcium signalling in hypertension, as there is significant interest in the role of ET-1 in this important disease. A list of unanswered questions regarding ET-mediated calcium signals are also presented, as well as perspectives for future research of calcium mobilization by ET-1.

scholarly journals Intracellular calcium concentration and activation of the Na+/H+ exchanger in essential hypertension

1994 ◽  
Vol 45 (4) ◽  
pp. 1037-1043 ◽  
Author(s):  
Esteban Poch ◽  
Albert Botey ◽  
Joan Gaya ◽  
Alejandro Darnell ◽  
Francisca Rivera ◽  
...  
Keyword(s):  
Essential Hypertension ◽  
Intracellular Calcium ◽  
Calcium Concentration ◽  
Intracellular Calcium Concentration

P4988Beta-blockers in diabetes with stable coronary heart disease - a cause for concern?

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
A H Malik ◽  
S Shetty ◽  
K Kar ◽  
R El Accaoui
Keyword(s):  
Coronary Heart Disease ◽  
Heart Disease ◽  
Fixed Effects ◽  
Meta Analysis ◽  
P Value ◽  
Effect Estimate ◽  
Diabetic Patients ◽  
Increased Risk ◽  
Stable Coronary Heart Disease ◽  
All Cause Mortality

Abstract Background Beta-blocker (BB) therapy is a cornerstone for the treatment of coronary heart disease (CHD). The evidence of the benefit from long-term BB therapy in diabetic patients with stable CHD is scarce. This meta-analysis summarises the evidence relating to the BB therapy in diabetic patients with stable CHD. Methods A meta-analysis was performed according to PRISMA and MOOSE guidelines for reporting of systematic reviews of observational studies. PubMed, Embase, and Cochrane central were searched and two authors independently screened studies for eligibility. The quality of studies was assessed with the Newcastle Ottawa scale. The primary outcome of interest was all-cause mortality, cardiovascular (CV) mortality and major adverse cardiovascular events (MACE) in diabetic patients with and without BB therapy. A generic inverse variance model was used to pool the odds ratio or hazards ratio from included studies to calculate the overall effect estimate. The significance threshold was set at p-value <0.05. Heterogeneity was assessed by I2. Results Four non-randomized studies with 9,515 participants were selected for the analyses. Four studies were post-hoc analyses of randomised controlled trials, and 1 article was an analysis of a nationally representative survey. In a fixed effects model, BB therapy in diabetic patients with stable CHD was found to be associated with increased risk of CV mortality, and MACE (27%, and 32% respectively; p-value <0.05) and was not associated with a reduction in all-cause mortality (HR 1.12; 95% CI 0.94–1.33; p-value =0.22). Conclusion BB therapy in diabetic patients with stable CHD appears to be linked to higher mortality. Large randomised trials are needed in this population to confirm these findings. Acknowledgement/Funding None

scholarly journals Joint association between education and polygenic risk score for incident coronary heart disease events: a longitudinal population-based study of 26 203 men and women

2021 ◽  
pp. jech-2020-214358
Author(s):  
Pekka Martikainen ◽  
Kaarina Korhonen ◽  
Aline Jelenkovic ◽  
Hannu Lahtinen ◽  
Aki Havulinna ◽  
...  
Keyword(s):  
Coronary Heart Disease ◽  
Heart Disease ◽  
Risk Score ◽  
Density Lipoprotein ◽  
Population Based ◽  
Polygenic Risk Score ◽  
Genome Wide ◽  
Increased Risk ◽  
Region Of Residence

BackgroundGenetic vulnerability to coronary heart disease (CHD) is well established, but little is known whether these effects are mediated or modified by equally well-established social determinants of CHD. We estimate the joint associations of the polygenetic risk score (PRS) for CHD and education on CHD events.MethodsThe data are from the 1992, 1997, 2002, 2007 and 2012 surveys of the population-based FINRISK Study including measures of social, behavioural and metabolic factors and genome-wide genotypes (N=26 203). Follow-up of fatal and non-fatal incident CHD events (N=2063) was based on nationwide registers.ResultsAllowing for age, sex, study year, region of residence, study batch and principal components, those in the highest quartile of PRS for CHD had strongly increased risk of CHD events compared with the lowest quartile (HR=2.26; 95% CI: 1.97 to 2.59); associations were also observed for low education (HR=1.58; 95% CI: 1.32 to 1.89). These effects were largely independent of each other. Adjustment for baseline smoking, alcohol use, body mass index, igh-density lipoprotein (HDL) and total cholesterol, blood pressure and diabetes attenuated the PRS associations by 10% and the education associations by 50%. We do not find strong evidence of interactions between PRS and education.ConclusionsPRS and education predict CHD events, and these associations are independent of each other. Both can improve CHD prediction beyond behavioural risks. The results imply that observational studies that do not have information on genetic risk factors for CHD do not provide confounded estimates for the association between education and CHD.

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