Publications by authors named "Chander V"

cGMP plays a central role in cardiovascular regulation in health and disease. It is synthesized by NO or natriuretic peptide activated cyclases and hydrolyzed to 5'GMP by select members of the PDEs (phosphodiesterase) superfamily. The primary downstream effector is cGMP-dependent protein kinase, primarily cGK-1a also known as protein kinase G 1a in the heart and vasculature.

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Background: The augmentation of precautionary behaviors through the application of health belief model (HBM) constructs could help in curbing the current pandemic.

Objectives: The objectives are to assess adherence to CAB and to evaluate its predictors using the constructs of HBM among COVID-19 vaccinees in Himachal Pradesh.

Materials And Methods: A cross-sectional study using a telephone survey, with two-step stratified random sampling, was employed to acquire a sample of 441 respondents from Himachal Pradesh.

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Metaplastic breast carcinoma (MBC) is a rare and aggressive subtype of breast cancer characterized by the presence of both epithelial and mesenchymal components within the tumor. Its clinical and radiological appearance is comparable to other types of breast cancer, but it grows rapidly. The diagnosis of metaplastic carcinoma is largely based on the epithelial origin of the cells confirmed by immunohistochemistry (IHC).

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Selective removal of dysfunctional mitochondria via autophagy is crucial for the maintenance of cellular homeostasis. This event is initiated by the translocation of the E3 ubiquitin ligase Parkin to damaged mitochondria, and it requires the Serine/Threonine-protein kinase PINK1. In a coordinated set of events, PINK1 operates upstream of Parkin in a linear pathway that leads to the phosphorylation of Parkin, Ubiquitin, and Parkin mitochondrial substrates, to promote ubiquitination of outer mitochondrial membrane proteins.

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A prospective randomized controlled clinical study was conducted to determine whether antioxidant supplementation as an adjunct therapy alters hemogram, oxidative stress, serum intestinal fatty acid binding protein-2 (IFABP-2) level, fecal viral load, clinical score (CS) and survivability in outpatient canine parvovirus enteritis (CPVE) dogs. The dogs with CPVE were randomized to one of the five treatment groups: supportive treatment (ST) alone, ST with N-acetylcysteine (ST+NAC), resveratrol (ST+RES), coenzyme Q10 (ST+CoQ10) or ascorbic acid (ST+AA). The primary outcome measures were reduction of CS and fecal HA titre, and enhancement of survivability.

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We report a high rate of seropositivity against SARS-CoV-2 in wild felines in India. Seropositivity was determined by microneutralization and plaque reduction neutralization assays in captive Asiatic lions, leopards, and Bengal tigers. The rate of seropositivity was positively correlated with that of the incidence in humans, suggesting the occurrence of large spillover events.

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Lumpy skin disease (LSD) is a highly infectious and economically important viral disease, which is currently emerging in the Indian subcontinent. LSD is caused by Lumpy Skin Disease Virus (LSDV) under the genus Capripoxvirus and the family Poxviridae. Since its first incursion in India in the year 2019, the virus is rapidly disseminating through different means like direct contact, fomites and mainly by blood-feeding insects.

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Article Synopsis
  • Age-related changes in DNA methylation patterns in blood are linked to health issues like blood cancer and coronary artery disease (CAD), particularly through a condition called clonal hematopoiesis of indeterminate potential (CHIP).
  • The study focused on two frequently mutated genes associated with CHIP, DNMT3A and TET2, which exhibit opposite patterns of DNA methylation despite both supporting the self-renewal of hematopoietic stem cells.
  • Findings suggest that certain methylation changes connected to DNMT3A and TET2 could increase the risk for coronary artery disease, as verified by analyses in two different participant groups.
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Xia-Gibbs syndrome (XGS; MIM# 615829) is a rare mendelian disorder characterized by Development Delay (DD), intellectual disability (ID), and hypotonia. Individuals with XGS typically harbor de novo protein-truncating mutations in the AT-Hook DNA binding motif containing 1 (AHDC1) gene, although some missense mutations can also cause XGS. Large de novo heterozygous deletions that encompass the AHDC1 gene have also been ascribed as diagnostic for the disorder, without substantial evidence to support their pathogenicity.

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Unlabelled: We report an incidence of natural infection of SARS-CoV-2 in free-ranging Indian leopard (). The case was detected during routine screening. Post-mortem and laboratory examination suggested virus-induced interstitial pneumonia.

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Rupture of the urinary bladder and extravasation of urine into the peritoneal cavity leading to urinary ascites is an uncommon event, usually caused by blunt trauma to the abdomen. A high index of suspicion is required for early accurate diagnosis, which avoids unnecessary investigations and interventions. The disappearance of ascites following indwelling Foley's catheterization and high peritoneal fluid urea and creatinine compared to serum values are keys for diagnosis.

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Cardiac hypertrophy is characterized by an increase in the size of the cardiomyocytes which is initially triggered as an adaptive response but ultimately becomes maladaptive with chronic exposure to different hypertrophic stimuli. Prolonged cardiac hypertrophy is often associated with mitochondrial dysfunctions and cardiomyocyte cell death. Peroxisome proliferator activated receptor alpha (PPAR α), which is critical for mitochondrial biogenesis and fatty acid oxidation, is down regulated in hypertrophied cardiomyocytes.

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Background: Ayurveda is a highly recognized, well-documented, and well-accepted traditional medicine system. This system utilizes many natural products in various forms for therapeutic purposes. Thousands of plants mentioned in the Ayurvedic system are useful in disease mitigation and health preservation.

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Optimal cell spreading and interplay of vascular smooth muscle cells (VSMC), inflammatory cells, and cell adhesion molecules (CAM) are critical for progressive atherosclerosis and cardiovascular complications. The role of vitronectin (VTN), a major cell attachment glycoprotein, in the pathogenesis of atherosclerosis remains elusive. In this study, we attempt to examine the pathological role of VTN in arterial plaque progression and inflammation.

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Congenitally missing anterior teeth alters the patient's physiognomy and diction in a big way. Maxillary incisor agenesis, prominently the lateral incisor is the most common congenitally missing permanent tooth, in the anterior maxillary region, which is the esthetic zone, representing approximately 20% of all dental anomalies. Treatment planning is inclusive of; smile design, preparation, perception of the patients, and their expectations in relation to esthetics, interdisciplinary alliance that meets the functional, health, and esthetic needs.

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Xia-Gibbs syndrome (XGS; MIM: 615829) is a phenotypically heterogeneous neurodevelopmental disorder (NDD) caused by newly arising mutations in the AT-Hook DNA-Binding Motif-Containing 1 () gene that are predicted to lead to truncated AHDC1 protein synthesis. More than 270 individuals have been diagnosed with XGS worldwide. Despite the absence of an independent assay for AHDC1 protein function to corroborate potential functional consequences of rare variant genetic findings, there are also reports of individuals with XGS-like trait manifestations who have missense mutations and who have been provided a molecular diagnosis of the disorder.

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Canine parvovirus-2 (CPV-2) is ubiquitously distributed in dog population worldwide causing a severe and often fatal gastroenteritis. Owing to its highly contagious nature, rapid detection of CPV is crucial in effective control of the disease. Aptamers have emerged as potential alternative to antibodies as affinity reagents in diagnostic field.

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Sacral tumors are rare and can be benign or malignant. Their management is multifactorial and is based on the pathology, extent, and local and distant spread. Managing sacral tumors is challenging due to their proximity to visceral and neural structures.

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Salmonella enterica serovar Gallinarum is a host-restricted bacterial pathogen that causes a serious systemic disease exclusively in birds of all ages. Salmonella enterica serovar Typhimurium is a host-generalist serovar. Dendritic cells (DCs) are key antigen-presenting cells that play an important part in Salmonella host-restriction.

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The current pandemic caused by a novel coronavirus (SARS-CoV-2) has underlined the importance of emerging diseases of zoonotic importance. Along with human beings, several species of wild and pet animals have been demonstrated to be infected by SARS-CoV-2, both naturally and experimentally. In addition, with constant emergence of new variants, the species susceptibility might further change which warrants intensified screening efforts.

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Article Synopsis
  • Cardiovascular disease (CVD) is the top cause of death in the U.S., and while genetic testing can be helpful, its benefits aren’t widely accepted.
  • The "HeartCare" genetic panel was tested on 709 patients, revealing that 32% had significant genetic findings affecting their medical treatment, including 9% diagnosed with Mendelian conditions.
  • A survey showed that 84% of doctors altered patient care based on genetic results, leading to changes in referrals, tests, and medications, highlighting the importance of incorporating genetic information in cardiovascular health management.
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Human induced pluripotent stem cells (iPSC) hold promise for modeling diseases in individual human genetic backgrounds and thus for developing precision medicine. Here, we generate sensorimotor organoids containing physiologically functional neuromuscular junctions (NMJs) and apply the model to different subgroups of amyotrophic lateral sclerosis (ALS). Using a range of molecular, genomic, and physiological techniques, we identify and characterize motor neurons and skeletal muscle, along with sensory neurons, astrocytes, microglia, and vasculature.

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Article Synopsis
  • Canine adenoviruses (CAVs) consist of two types: CAV-1, which causes infectious hepatitis, and CAV-2, linked to respiratory diseases in dogs; CAV infections have decreased due to widespread vaccination.
  • This study highlights a case of CAV-2 infection in a vaccinated dog showing neurological and respiratory symptoms, while being negative for other common canine viruses.
  • The research involved isolating the virus, conducting phylogenetic analysis, and identifying a unique "G" nucleotide insertion in the E3 gene of Indian CAV-2 that might affect E3 protein function, marking a notable distinction in this strain compared to global isolates.
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Bovine tuberculosis is an economically important disease with very high zoonotic potential. Single intradermal cervical tuberculin test (SICT) is considered a gold standard assay for the diagnosis of bovine tuberculosis. However, bovines especially buffaloes may produce a false negative result when the animal becomes cell-mediated immune (CMI) anergic in the advanced stage of the disease.

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