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Background Aortic insufficiency (AI) is associated with morbidity and mortality in patients with continuous-flow left ventricular assist devices (LVADs), whereas its impact on the HeartMate 3 LVAD cohorts remains uninvestigated. We aimed to investigate the clinical impact of AI on patients with HeartMate 3 LVADs. Methods and results Consecutive 61 patients (median age 54 years; 67% male) implanted with HeartMate 3 LVAD between 2015 and 2019 were enrolled and underwent echocardiography at 3 months after LVAD implantation. AI severity was quantified by the novel Doppler echocardiographic method obtained at the outflow cannula and the calculated regurgitation fraction of 30% or greater (moderate or greater) was defined as significant. At 3 months after implant, 12 patients (20%) had significant AI. They had a higher incidence of death or heart failure readmissions compared with those without significant AI during a 1-year observational period (70% vs 24%, P = .003) with an adjusted hazard ratio of 2.76 (95% confidence interval 1.03-7.88). Conclusions In patients with HeartMate 3 LVAD support, significant AI remains both prevalent and a clinically significant downstream complication.Background To estimate oxygen uptake (VO2) from cardiopulmonary exercise testing (CPX) using simultaneously recorded seismocardiogram (SCG) and electrocardiogram (ECG) signals captured with a small wearable patch. CPX is an important risk stratification tool for patients with heart failure (HF) owing to the prognostic value of the features derived from the gas exchange variables such as VO2. However, CPX requires specialized equipment, as well as trained professionals to conduct the study. Methods and results We have conducted a total of 68 CPX tests on 59 patients with HF with reduced ejection fraction (31% women, mean age 55 ± 13 years, ejection fraction 0.27 ± 0.11, 79% stage C). The patients were fitted with a wearable sensing patch and underwent treadmill CPX. We divided the dataset into a training-testing set (n = 44) and a separate validation set (n = 24). We developed globalized (population) regression models to estimate VO2 from the SCG and ECG signals measured continuously with the patch. We furthertatus for patients with HF. These methods may provide value in the risk stratification of patients with HF by tracking cardiopulmonary parameters and clinical status outside of specialized settings, potentially allowing for more frequent assessments to be performed during longitudinal monitoring and treatment.Objectives This study sought to identify the role of annexin A1 (AnxA1) as a congestion marker in acute heart failure (AHF) and to identify its putative role in predicting clinical outcomes. Background AnxA1 is a protein that inhibits inflammation following ischemia-reperfusion injury in cardiorenal tissues. Because AHF is a state of tissue hypoperfusion, we hypothesized that plasma AnxA1 levels are altered in AHF. Methods In the Renal Optimization Strategies Evaluation (ROSE) trial, patients hospitalized for AHF with kidney injury were randomized to receive dopamine, nesiritide, or placebo for 72 hours in addition to diuresis. In a subanalysis, plasma AnxA1 levels were measured at baseline and at 72 hours in 275 patients. Participants were divided into 3 tertiles based on their baseline AnxA1 levels. Results The prevalence of peripheral edema 2+ increased with increasing AnxA1 levels (P less then .007). Cystatin C, blood urea nitrogen, and kidney injury molecule-1 plasma levels were higher among participants in tertile 3 vs tertiles 1 or 2 (P less then .05). Patients with a congestion score of 4 had a mean baseline AnxA1 level 8.63 units higher than those with a congestion score of 0 (P = .03). Patients in tertiles 2 and 3 were twice as likely to experience creatinine elevation as patients in tertile 1 (P = .03). Patients in tertiles 2 and 3 were at a higher risk of 60-day all-cause mortality or heart failure hospitalization and 180-day all-cause mortality (P less then .05). Conclusions Among patients hospitalized for AHF with impaired kidney function, elevated AnxA1 levels are associated with worse congestion, higher risk for further creatinine elevation, and higher rates of 60-day morbidity or all-cause mortality and 180-day all-cause mortality. Clinical trial registration clinicaltrials.gov Identifier NCT01132846.Neurodegenerative diseases are a major global public health concern in the elderly population but therapeutic options are limited. Curcumin is a hydrophobic polyphenol extracted from the dried rhizomes of Curcuma longa L. and shows good potential for the treatment of neurodegenerative diseases and brain tumors. https://www.selleckchem.com/products/necrostatin-1.html The blood-brain barrier (BBB) is the major obstacle for the delivery of curcumin into the brain, limiting its therapeutic potential. The development of promising approaches to facilitate curcumin transportation across the BBB may resolve some of the problems associated with drug delivery. Studies have shown nano delivery of curcumin can improve a number of outcome measures in neurodegenerative diseases. The present review highlights current and emerging strategies to facilitate curcumin permeation across the BBB for the treatment of various neurodegenerative diseases.Preterm infants, particularly those who born between 23 and 28 weeks' gestation, suffer from a very high incidence of respiratory distress syndrome (RDS) related to pulmonary immaturity and inability to make Pulmonary Surfactant (PS). These infants are supported by the use of oxygen, ventilators, and routine administration of surfactant replacement. The currently commercial surfactant replacement therapies do not contain hydrophilic surfactant proteins such as Surfactant Protein D (SP-D). These proteins have a key role in the innate lung host defense, thus the development of a sustained release vehicle that provides SP-D for long periods in preterm infants' lungs would exploit the therapeutic potential of SP-D and other pulmonary medications. The proposed SP-D delivery system is based on nanoparticles (NPs) composed of poly (lactic acid-co-glycolic acid) (PLGA), a biodegradable, FDA approved biopolymer. The resulted NPs were spherical with high Zeta potential value, were not toxic to A-549 lungs cells, and did not induce any inflammatory response in mouse's lungs for short and long-term periods.
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