calcitriol and Ventricular-Dysfunction--Left

There are not enough data about threshold changes in patients with CRT. In this study, we aimed to investigate frequency of significant threshold increase of left ventricle lead and to determine clinical, demographic, medical and laboratory parameters that associated with threshold increase in CRT implanted patients.. We included CRT implanted 200 patients (124 males, 76 females; mean age 65.8 ± 10.3 years) to this study. Basal and third month LV R wave amplitude, electrode impedance, and threshold values were recorded. Threshold increase was accepted as ≥0.1 V and significant increase as >1 V. Patients were divided into two groups: increased threshold and non-increased threshold for LV lead.. Number of patients with increased LV threshold was 68 (37.6 %). Furthermore, 8 % of patients had severe increase (≥1 V) in LV threshold. We observed that serum levels of hs-CRP and 1,25 (OH)2 vitamin D were independently associated with increased LV threshold. We showed that 1 mg/dl increase in hs-CRP and the 1 mg/dl decrease in vitamin D are associated with 25.3 and 4.5 % increase in the odds of increased LV threshold, respectively.. Increased hs-CRP and decreased 1,25 (OH)2 vitamin D are the strongest predictors of increased LV lead thresholds. We suggest that hs-CRP and 1,25 (OH)2 vitamin D may be used as markers to predict and follow the patients with increased thresholds. It may be useful to finalize CRT procedure with more appropriate basal threshold in patients with high serum hs-CRP and low 1,25 (OH)2 vitamin D levels.

Topics: Aged; Biomarkers; C-Reactive Protein; Cardiac Pacing, Artificial; Diagnosis, Differential; Down-Regulation; Electrocardiography; Female; Humans; Male; Prevalence; Reproducibility of Results; Sensitivity and Specificity; Turkey; Up-Regulation; Ventricular Dysfunction, Left; Vitamin D

Socially anxious cannabis users are influenced by cannabis expectancies and normative perceptions. The present study examines the influence of psychosocial factors on cannabis use vulnerability factors as the result of interactions between norms perceptions, social anxiety, and expectancies.. Participants were 149 (36.2% female) current cannabis users aged 18-36 (. Among cannabis users with perceptions of greater injunctive norms, social anxiety was associated with greater cannabis craving when tension reduction expectancies were greater. However, social anxiety was unrelated to cannabis craving when expectances were low. This suggests that cannabis craving among socially anxious adults was greatest when cannabis use was viewed as acceptable and expected to reduce tension, and highlights the importance of considering norms, expectancies, and social anxiety in understanding cannabis-related behaviors.. The A876P-substitution bridges in vitro and in vivo studies using J6/JFH1-based recombinants. We provide the first in vivo evidence that HVR1 protects cross-genotype conserved HCV neutralisation epitopes, which advocates the possibility of using HVR1-deleted viruses as vaccine antigens to boost broadly reactive protective nAb responses.. We conclude that the photo-processing of eVSGs leads to the production of PAHs with attached aliphatic sidegroups that are revealed by the 3.4. De 4,331 publicaciones encontradas, 16 estudios cumplieron con los criterios de inclusión. El 50 % (8/16) de los estudios revisados fueron realizados en países de Sur América, Centro América y del Caribe. El diseño de casos y controles fue el más frecuente. El anterior sistema de clasificación de casos (OMS-1997) fue utilizado en todos los estudios incluidos en esta revisión.. El estrés oxidativo-nitrosativo se encuentra presente en el curso de la infección por virus dengue, demostrado por los cambios en las concentraciones plasmáticas de óxido nítrico, antioxidantes y marcadores de lipoperoxidación y de oxidación de proteínas. Por último, parece existir una asociación entre la elevación de los niveles plasmáticos de los carbonilos proteicos y malondialdehído con la severidad del dengue.

Topics: Acid-Base Imbalance; Acidosis, Renal Tubular; Aged; Air Pollution, Indoor; Amino Acid Substitution; Animals; Animals, Newborn; Anti-Bacterial Agents; Antibodies, Neutralizing; Apoptosis; Blood Vessel Prosthesis; Blood Vessel Prosthesis Implantation; Bone Marrow Transplantation; Carbonic Anhydrase Inhibitors; Castleman Disease; Cat Diseases; Cats; Cell Proliferation; Cell- and Tissue-Based Therapy; Chemical and Drug Induced Liver Injury; Chemotaxis, Leukocyte; Clinical Trials as Topic; Coated Materials, Biocompatible; Diagnosis, Differential; Disease Models, Animal; Environmental Monitoring; Female; Gas Chromatography-Mass Spectrometry; Genotype; Granuloma, Foreign-Body; Heart Failure; Hepacivirus; Hepatitis C; Horse Diseases; Horses; Housing; Humans; Hypercalcemia; Hypokalemia; Immunophenotyping; In Vitro Techniques; Liver; Liver Function Tests; Lymphocytes; Macrophages; Male; Medicine, Chinese Traditional; Metabolomics; Mice; Mice, Inbred C57BL; Middle Aged; Models, Animal; Mutation; Myocardial Ischemia; Neovascularization, Physiologic; Neutrophil Infiltration; Ocular Hypertension; Ophthalmic Solutions; Parathyroid Hormone; Particulate Matter; Polyethylene Terephthalates; Prednisolone; Prospective Studies; Prosthesis Design; Prosthesis-Related Infections; Rats; Rats, Wistar; Reactive Oxygen Species; Rifampin; Saponins; Sepsis; Skin; Stem Cells; Stroke Volume; Sulfonamides; Texas; Thiophenes; Time Factors; Ventricular Dysfunction, Left; Ventricular Function, Left; Viral Hepatitis Vaccines; Viral Nonstructural Proteins; Viral Proteins; Vitamin D; Wound Healing

Fibroblast growth factor-23 (FGF-23) is a hormone that promotes urinary phosphate excretion and regulates vitamin D metabolism. Circulating FGF-23 concentrations increase markedly in chronic kidney disease and are associated with increased risk of clinical cardiovascular events. FGF-23 may promote atrial fibrillation (AF) by inducing left ventricular hypertrophy and diastolic and left atrial dysfunction.. We tested the associations of circulating FGF-23 concentration with incident AF among 6398 participants in the Multi-Ethnic Study of Atherosclerosis (MESA) and 1350 participants in the Cardiovascular Health Study (CHS), all free of clinical cardiovascular disease at baseline. Over a median of 7.7 and 8.0 years of follow-up, we observed 291 and 229 incident AF events in MESA and CHS, respectively. In multivariable Cox proportional hazards models, each 2-fold-higher FGF-23 concentration was associated with a 41% higher risk of incident AF in MESA (hazard ratio, 1.41; 95% confidence interval, 1.13-1.76; P=0.003) and a 30% higher risk of incident AF in CHS (hazard ratio, 1.30; 95% confidence interval, 1.05-1.61; P=0.016) after adjustment for potential confounding characteristics, including kidney disease. Serum phosphate concentration was significantly associated with incident AF in MESA (hazard ratio, 1.15 per 0.5 mg/dL; 95% confidence interval, 1.02-1.31; P=0.023) but not CHS. In MESA, an association of low estimated glomerular filtration rate with incident AF was partially attenuated by adjustment for FGF-23.. Higher circulating FGF-23 concentration is associated with incident AF and may, in part, explain the link between chronic kidney disease and AF.

Topics: Aged; Aged, 80 and over; Atrial Fibrillation; Comorbidity; Ethnicity; Female; Fibroblast Growth Factor 3; Fibroblast Growth Factor-23; Follow-Up Studies; Glomerular Filtration Rate; Heart Failure; Humans; Hypertrophy, Left Ventricular; Male; Middle Aged; Phosphates; Proportional Hazards Models; Renal Insufficiency, Chronic; Risk Factors; United States; Ventricular Dysfunction, Left; Ventricular Remodeling; Vitamin D