Krebsbowden6917
oxidative stress, endothelial dysfunction, inflammation, and major acute cardiovascular events, whereas in patients with chronic coronary syndrome, TMZ decreased oxidative stress and readmission for ACS and heart failure.Coronavirus-related disease-2019 (COVID-19)-associated coagulopathy presents predominantly with thrombosis and leads to complications in close association with inflammatory process. Selleck DiR chemical Soluble endothelial protein C receptor (sEPCR), which is the soluble form of EPCR, reduces the anticoagulant and anti-inflammatory activity of activated protein C. The purpose of this study is to investigate the relationship between sEPCR and the laboratory parameters and thorax computed tomography (CT) findings in the course of COVID-19. Twenty-five laboratory-confirmed [reverse transcription-quantitative polimerase chain reaction (RT-qPCR) positive] and 24 clinically diagnosed (RT-qPCR negative) COVID-19 patients were enrolled in the study. Blood specimens were collected for sEPCR and haematological and biochemical parameter measurement. Thorax CT was performed to detect COVID-19 findings. These parameters from RT-qPCR positive and negative patients were then compared. Although there was no difference between the groups in terms of symptoms, the time between the onset of symptoms and the admission time was shorter in RT-qPCR positive group (P = 0.000). sEPCR levels were significantly higher in the RT-qPCR positive group (P = 0.011). Patients with ground-glass opacity and bilateral involvement on thorax CT have higher serum sEPCR levels (P = 0.012 and 0.043, respectively). This study has shown for the first time that serum sEPCR levels, which is a member of coagulation cascade and has also been reported to be associated with inflammation, is higher in patients with positive RT-qPCR test and patients with GGO or bilateral involvement on thorax CT regardless of the PCR result.
Atherosclerosis (AS) is a major risk factor for cardiovascular disease, in which circular RNAs (circRNAs) play important regulatory roles. This research aimed to explore the biological role of circSCAP (hsa_circ_0001292) in AS development. Real-time PCR or western blot assay was conducted to analyze RNA or protein expression. Cell proliferation and apoptosis were analyzed by CCK-8 assay and flow cytometry. The levels of lipid accumulation-associated indicators and oxidative stress factors were detected using commercial kits. The levels of inflammatory cytokines were examined using enzyme-linked immunosorbent assay (ELISA). Intermolecular interaction was verified via dual-luciferase reporter analysis or RNA pull-down analysis. CircSCAP and phosphodiesterase 3B (PDE3B) levels were elevated, whereas miR-221-5p level was decreased in AS patients and oxidized low-density lipoprotein (ox-LDL)-induced THP-1 cells. CircSCAP absence suppressed lipid deposition, inflammation, and oxidative stress in ox-LDL-induced THPon, and oxidative stress in ox-LDL-induced THP-1 macrophages by regulating miR-221-5p/PDE3B axis.
The novel coronavirus disease (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has rapidly evolved into a global pandemic. The substantial morbidity and mortality associated with the infection has prompted us to understand potential risk factors that can predict patient outcomes. Hypertension has been identified as the most prevalent cardiovascular comorbidity in COVID-19 patients, that demonstrably increases the risk of hospitalization and death. Initial studies implied that renin-angiotensin-aldosterone system (RAAS) inhibitors might increase the risk of viral infection and aggravate disease severity, thereby causing panic given the high global prevalence of hypertension. Nonetheless, subsequent evidence supported the administration of antihypertensive drugs, and noted that they do not increase the severity of COVID-19 infection in patients with hypertension; rather, may have a beneficial effect. To date, the precise mechanism by which hypertension predisposes to unfavinhibitors might increase the risk of viral infection and aggravate disease severity, thereby causing panic given the high global prevalence of hypertension. Nonetheless, subsequent evidence supported the administration of antihypertensive drugs, and noted that they do not increase the severity of COVID-19 infection in patients with hypertension; rather, may have a beneficial effect. To date, the precise mechanism by which hypertension predisposes to unfavorable outcomes in patients with COVID-19 remains unknown. In this mini-review, we elaborate on the pathology of SARS-CoV-2 infection coexisting with hypertension, and summarize potential mechanisms, focusing on the dual roles of angiotensin converting enzyme 2 (ACE2) and the disorders of RAAS in COVID-19 and hypertension. The effects of proinflammatory factors released due to immune response, and gastrointestinal dysfunction in COVID-19 are also discussed.
Women with polycystic ovary syndrome are at high cardiometabolic risk. Early-onset male-pattern baldness is considered the phenotypic equivalent of polycystic ovary syndrome in men. The aim of the present study was to assess whether early-onset androgenetic alopecia modifies cardiometabolic effects of lisinopril in men with arterial hypertension. The study population consisted of 62 young men with grade 1 hypertension, 31 of whom were diagnosed with early-onset male-pattern baldness (group A). Thirty-one blood pressure-matched men with normal hair growth (group B) served as a control group. All participants were treated with lisinopril (10-40 mg daily). Blood pressure, glucose homeostasis markers, urinary albumin-to-creatinine ratio (UACR), as well as plasma levels of uric acid, high-sensitivity C-reactive protein (hsCRP), fibrinogen, homocysteine, total and calculated free testosterone, dehydroepiandrosterone-sulfate and estradiol were assessed before lisinopril treatment and six months later. At baseline,well as improved insulin sensitivity. The impact of lisinopril on uric acid, hsCRP, fibrinogen, homocysteine and UACR correlated weakly with its hypotensive properties, androgen levels and insulin sensitivity. The obtained results suggest that cardiometabolic effects of lisinopril in men are less pronounced in case of coexisting early-onset androgenetic alopecia.
Thrombosis is the most common adverse event in patients with polycythemia vera (PV) and essential thrombocythemia (ET). Little is known about the use of non-vitamin K antagonist oral anticoagulants (NOACs) in patients with myeloproliferative neoplasms (MPN). We sought to evaluate the efficacy and safety of NOAC in a cohort of patients with PV and ET, who experienced venous thromboembolism (VTE). We enrolled 48 consecutive patients with PV (70.8%) and ET (median age 67.0 [IQR, 58.5-72.0] years), who experienced VTE. Patients received apixaban (39.6%), rivaroxaban (33.3%), or dabigatran (27.1%). During a median follow-up of 30 (IQR, 20.5 - 41.5) months, recurrent thrombotic events and bleeding were recorded. Four thrombotic events (3.3 per 100 patient-years) were reported. Three DVT episodes (2.5 per 100 patient-years) experienced two patients with PV who received apixaban (5 mg bid) and dabigatran (150 mg bid) and one with ET, who received dabigatran (150 mg bid). One ischemic stroke occurred in a patient wiive and safe as secondary prevention of VTE in patients with MPN.
The transthyretin (TTR) amyloidoses result from misfolding of the protein leading to fibril formation and aggregation as amyloid deposits in predominantly the cardiovascular and nervous systems. Cardiac involvement can manifest as heart failure, arrhythmias, and valvular disease. Neurologic involvement can cause sensorimotor polyneuropathies, mononeuropathies, and dysautonomia. Previously, treatment has focused on management of these symptoms and disease sequelae, with a high rate of mortality due to the absence of disease modifying therapies. In this manuscript, we review novel treatments focusing on three mechanistic pathways (1) silencing of the TTR gene to suppress production, (2) stabilizing of TTR tetramers to prevent misfolding, or (3) disrupting of existing TTR amyloid fibrils to promote reabsorption.
The transthyretin (TTR) amyloidoses result from misfolding of the protein leading to fibril formation and aggregation as amyloid deposits in predominantly the cardiovascular and nervous systems. Cardiac involvement can manifest as heart failure, arrhythmias, and valvular disease. Neurologic involvement can cause sensorimotor polyneuropathies, mononeuropathies, and dysautonomia. Previously, treatment has focused on management of these symptoms and disease sequelae, with a high rate of mortality due to the absence of disease modifying therapies. In this manuscript, we review novel treatments focusing on three mechanistic pathways (1) silencing of the TTR gene to suppress production, (2) stabilizing of TTR tetramers to prevent misfolding, or (3) disrupting of existing TTR amyloid fibrils to promote reabsorption.
Statin therapy after transcatheter aortic valve replacement (TAVI) is associated with better short- and long-term outcomes. It is of interest to identify specific patient populations that might profit from statin therapy. In this retrospective, observational analysis of 2,862 patients with symptomatic aortic stenosis (AS) after successful transfemoral TAVI, survival during a three-year observation period was characterized by Kaplan-Meier analyses according to statin therapy. Hazard ratios and potential interactions for specific subgroups of patients were determined by Cox regression analyses. At hospital discharge 1,761 patients were on low- or moderate-intensity statins (LMIS), 246 patients were on high-intensity statins (HIS), and 855 patients did not take statins. Statin therapy adherence during the first three months post-TAVI was 91%. Mortality rates were 18.5%, 12.9%, and 6.9% for patients with no statin, LMIS, and HIS (p<0.001). Any statin therapy proved to be effective in patients in different cln 40% (HR=0.64), or low-flow low-gradient AS (HR=0.58) and showed additional benefit even in patients taking renin-angiotensin system blockers (HR=0.74). Statins also reduced mortality in patients with malignant disease (HR=0.47). Our analysis confirmed the beneficial effect of statins on survival after TAVI and documented this phenomenon in key patient subsets. The protective effect of statins in our study is consistent with the cardioprotective mechanisms but must be explained by other, yet undetermined pleiotropic effects of statins.
Recent studies have proven benefit of SGLT2i drugs in patients with heart failure with reduced ejection fraction (HFrEF), but their safety when combined with ARNI has not been established. The SECSI registry was conducted to address this issue. SECSI registry is a consecutive, observational, retrospective, multicentre study carried out in three Heart Failure Units in Spain. It included 144 HFrEF patients who were treated with ARNI and iSGLT2. Data were collected at baseline, month two and month six. The primary endpoint was the estimated glomerular filtration rate (eGFR), after the initiation of angiotensin-neprilysin inhibitor (ARNI) and sodium-glucose cotransporter-2 inhibitors (SGLT2i). Secondary endpoints included potassium levels and functional class [New York Heart Association (NYHA) class]. There were three prespecified subgroup analyses Elderly patients (≥70 years), patients with chronic kidney disease (KDIGO classification G3) and the sequence of drug initiation. Mean age was 69.9±10.1 years, and 110(76.