Background: Increased vascular Ca1.2 channel function causes enhanced arterial tone during hypertension. This is mediated by elevations in angiotensin II/protein kinase C signaling.
View Article and Find Full Text PDFPhosphorylation of myofilament proteins critically regulates beat-to-beat cardiac contraction and is typically altered in heart failure (HF). β-Adrenergic activation induces phosphorylation in numerous substrates at the myofilament. Nevertheless, how cardiac β-adrenoceptors (βARs) signal to the myofilament in healthy and diseased hearts remains poorly understood.
View Article and Find Full Text PDFStretching cylinders play a crucial role in the plastic and metal extrusion processes. This current investigation is to examine the Darcy Forchheimer flow of Carboxymethyl cellulose /water-based tri-hybrid nanofluid through a stretching cylinder. A composite of ternary hybrid nanofluid containing , and with CMC-water-based fluid has been added to the Crossflow model.
View Article and Find Full Text PDFBackground: Even though several initiatives have been undertaken in different locations worldwide to collect clinical data in homeopathy, it is important to further investigate these aspects in the context of health care in India.
Objective: The study aimed to gather and analyze patients' clinical data and to derive insights into homeopathic treatment using an internet-based software program for data storage, retrieval and repertorization.
Methods: A multi-center observational study was conducted across 14 homeopathy outpatient clinics in India that are affiliated with the Central Council for Research in Homoeopathy (CCRH).
Background: Prior vaccination is often studied for its impact on individuals' post-infection prognosis. Ayurveda, Yoga, Unani, Siddha and Homeopathy (AYUSH) medicines, advised by the Government of India as prophylaxis during the first wave of the coronavirus disease 2019 (COVID-19) pandemic, were consumed by the masses in 2020. A study was therefore undertaken to observe any association between the prior usage of AYUSH prophylactic medicines and post-infection severity as reported by recovered COVID-19 individuals.
View Article and Find Full Text PDFHealth care personnel (HCP) are recommended to receive annual vaccination against influenza to reduce influenza-related morbidity and mortality. Every year, acute care hospitals report receipt of influenza vaccination among HCP to CDC's National Healthcare Safety Network (NHSN). This analysis used NHSN data to describe changes in influenza vaccination coverage among HCP in acute care hospitals before and during the COVID-19 pandemic.
View Article and Find Full Text PDFIntriguing cationic defects with hollow nano-/microstructures are a critical challenge but a potential strategy to discover electrochemical energy conversion and storage devices with improved electrochemical performances. Herein, we successfully produced a highly porous, and large surface area of self-templated CuCoO hollow spheres (CCOHSs) with cationic defects via a solvothermal route. We hypothesized that the inside-out Ostwald ripening mechanism of the template-free strategy was the framework for forming the CCOHSs.
View Article and Find Full Text PDFBackground: L-type Ca1.2 channels undergo cooperative gating to regulate cell function, although mechanisms are unclear. This study tests the hypothesis that phosphorylation of the Ca1.
View Article and Find Full Text PDFThis study reports the design and synthesis of novel dialkyl (4-amino-5H-chromeno[2,3-d]pyrimidin-5-yl)phosphonates as potential antitumor agents against A549 (lung cancer), DU-145 (prostate cancer), PC-3 (prostate cancer), HeLa (cervical cancer) and MCF-7 (breast cancer), cell lines evidenced from the in vitro antitumor studies performed by MTT assay (across 10-30 μM concentrations). The structural eminence of these synthesized molecules has emanated by designing the structural core by uniting the chromene, pyrimidine and phosphonate moieties into one, which has augmented their novelty and made them unreported. Further the deep structural activity relationship study investigations articulated that the title compounds are promising drug-like compounds and potential inhibitor of histidine amino acid residue present on the respective enzymatic proteins [3QJZ (A549), 3VHE (DU-145), 3V49 (PC-3), 3F81 (HeLa), & 3R7Q (MCF-7)] of the cell lines screened and are identified as responsible for the multi-faceted antitumor activities predicted in vitro.
View Article and Find Full Text PDFSinoatrial node (SAN) cells are the pacemakers of the heart. This study describes a method for culturing and infection of adult mouse SAN cells with FRET-based biosensors that can be exploited to examine signaling events. SAN cells cultured in media with blebbistatin or (S)-nitro-blebbistatin retain their morphology, protein distribution, action potential (AP) waveform, and cAMP dynamics for at least 40 h.
View Article and Find Full Text PDFThe development of a negative marker vaccine against the foot-and-mouth disease virus (FMDV) will enhance the capabilities to differentiate vaccinated from infected animals and move forward in the progressive control pathway for the control of FMD. Here, we report the development of mutant FMDV of Asia1 with partial deletion of non-structural proteins 3A and 3B and characterization of their infectivity and protection response in the guinea pig model. The deleted FMDV Asia1/IND/63/1972 mutants, pAsia and pAsia were constructed from the full-length infectious clone pAsia, the viable virus was rescued, and the genetic stability of the mutants was confirmed by 20 monolayer passages in BHK21 cells.
View Article and Find Full Text PDFIn this article, a zirconia-based nano-catalyst (Nano-ZrO), with intermolecular C-N bond formation for the synthesis of various benzimidazole-fused heterocycles in a concise method is reported. The robustness of this reaction is demonstrated by the synthesis of a series of benzimidazole drugs in a one-pot method. All synthesized materials were characterized using spectroscopy as well as microanalysis data.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
February 2021
The number and activity of Ca1.2 channels in the cardiomyocyte sarcolemma tunes the magnitude of Ca-induced Ca release and myocardial contraction. β-Adrenergic receptor () activation stimulates sarcolemmal insertion of Ca1.
View Article and Find Full Text PDFFoot-and-mouth disease (FMD) virus 3A protein regulates viral replication and virulence; thus, we generated BHK-Flp-In cell line expressing 3A protein because it can serve as helper cell line for infecting a replication defective FMDV to produce a live disabled vaccine. FMDV Asia1 3A was amplified, cloned in pcDNA vector and confirmed by sequencing. The 3A gene was subcloned in pcEF/FRT vector and transfected in BHK-Flp-In cells and transformed cells were selected by resistance to hygromycin and susceptibility to zeocin antibiotics.
View Article and Find Full Text PDFThe L-type Ca channel Ca1.2 is essential for arterial myocyte excitability, gene expression and contraction. Elevations in extracellular glucose (hyperglycemia) potentiate vascular L-type Ca channel via PKA, but the underlying mechanisms are unclear.
View Article and Find Full Text PDFAims: β-blockers are widely used in therapy for heart failure and hypertension. β-blockers are also known to evoke additional diversified pharmacological and physiological effects in patients. We aim to characterize the underlying molecular signalling and effects on cardiac inotropy induced by β-blockers in animal hearts.
View Article and Find Full Text PDFThe present work describes spreading of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) at the tropical and temperate zones which are explained based on insolation energy, Particulate Matter (PM), latitude, temperature, humidity, Population Density (PD), Human Development Index (HDI) and Global Health Security Index (GHSI) parameters. In order to analyze the spreading of SARS-CoV-2 by statistical data based on the confirmed positive cases which are collected between December 31, 2019 to April 25, 2020. The present analysis reveals that the outbreak of SARS-CoV-2 in the major countries lie on the Equator is 78,509 cases, the countries lie on the Tropic of Cancer is 62,930 cases (excluding China) and the countries lie on the Tropic of Capricorn is 22,842 cases.
View Article and Find Full Text PDFColorectal cancer is the second most common cancer in women and the third most common cancer in men in the world. Surgical resection is the gold standard treatment and minimally invasive surgery remains the standard of care. Anastomotic leakage is one of the most feared postoperative complications in colorectal surgery.
View Article and Find Full Text PDFRationale: Cardiotoxic β adrenergic receptor (βAR)-CaMKII (calmodulin-dependent kinase II) signaling is a major and critical feature associated with development of heart failure. SAP97 (synapse-associated protein 97) is a multifunctional scaffold protein that binds directly to the C-terminus of βAR and organizes a receptor signalosome.
Objective: We aim to elucidate the dynamics of βAR-SAP97 signalosome and its potential role in chronic cardiotoxic βAR-CaMKII signaling that contributes to development of heart failure.
Pressure overload (PO) cardiac hypertrophy and heart failure are associated with generalized insulin resistance and hyperinsulinemia, which may exacerbate left ventricular (LV) remodeling. While PO activates insulin receptor tyrosine kinase activity that is transduced by insulin receptor substrate 1 (IRS1), the present study tested the hypothesis that IRS1 and IRS2 have divergent effects on PO-induced LV remodeling. We therefore subjected mice with cardiomyocyte-restricted deficiency of IRS1 (CIRS1KO) or IRS2 (CIRS2KO) to PO induced by transverse aortic constriction (TAC).
View Article and Find Full Text PDFDespite the fact that macrophages link the innate and adaptive arms of immunity, it's role in the early infection of foot and mouth disease virus (FMDV) is largely unknown. Recently, depletion of macrophages in vivo after vaccination has shown to drastically diminish the protection against FMDV challenge in mouse model. Even the ability of macrophages to reduce or resist FMDV infection is not known hitherto.
View Article and Find Full Text PDFBackground: Foot and mouth disease (FMD), which causes myocarditis, results in 50% sudden death in the suckling calves. Occurrence of arrhythmias associated with FMD induced myocarditis in calves is not reported . The present work documents the arrhythmias associated with FMD in calf and their treatment using appropriate antiarrhythmic drugs.
View Article and Find Full Text PDFSm ions doped strontium lithium lead borate glasses (SLLB:Sm) were prepared using a conventional melt-quenching technique. The glasses were analyzed using X-ray diffractometry and Fourier transform infrared spectroscopy, optical absorption, fluorescence spectral analysis, and fluorescence lifetime decay. The Judd-Ofelt (J-O) parameters and radiative parameters of the SLLB:Sm10 glass (1.
View Article and Find Full Text PDFThis study describes a simple, high-yield, rapid, and inexpensive route for the synthesis of cubic shape-like cerium oxide nanocubes (CeO NCs) using different urea concentrations (0.5, 1.0, and 2.
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