Publications by authors named "Ramachandran P"

The current climate crisis has global impacts and will affect the physiology of plants across every continent. Ensuring resilience of our agricultural and natural ecosystems to the environmental stresses imposed by climate change will require molecular insight into the adaptations employed by a diverse array of plants. However, most current studies continue to focus on a limited set of model species or crops.

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Pulmonary artery aneurysmal rupture is a rare cause of massive hemoptysis. When the suspected origin of bleeding is the pulmonary artery, comprehensive evaluation is necessary to determine aetiology and guide appropriate management. Behçet's disease and Hughes-Stovin Syndrome (HSS) are important differentials to consider after infections and malignancy have been ruled out.

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An 84-year-old man with a genetically confirmed diagnosis of VEXAS (vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic) syndrome treated with tocilizumab reported with a 3-day history of left eye pain, conjunctival chemosis and injection, and horizontal binocular diplopia. Examination revealed restriction of left eye ductions in all directions with mild unilateral proptosis. MRI of his brain and orbits demonstrated abnormal enhancement of the left posterior sclera and intraorbital optic nerve sheath, without involvement of the extraocular muscles, cavernous sinus, or optic nerve parenchyma.

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Background: The farnesoid X receptor (FXR) is a leading therapeutic target for metabolic dysfunction-associated steatohepatitis (MASH)-related fibrosis. INT-767, a potent FXR agonist, has shown promise in preclinical models. We aimed to define the mechanisms of INT-767 activity in experimental MASH and dissect cellular and molecular targets of FXR agonism in human disease.

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Aim: Lymphatic malformations (LMs) and Veno-lymphatic malformations (VLMs) are congenital slow flow vascular malformations. Intralesional sclerotherapy is a good alternate option for treatment of LMs and VLMs. Our aim was to evaluate the outcome of doxycycline sclerotherapy for lymphatic and veno-lymphatic malformation in children in our institute.

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The objective of this study was to validate and test the efficacy of a 16-week tele-yoga intervention for perceived stress, anxiety, depression, and insomnia in individuals who had had COVID-19 infection in the previous year, and had reported moderately high levels of psychological stress (PSS ≥14). 25 and 50-min versions of the program were developed. They were then validated using Lawshe's content validity ratio after obtaining feedback from 20 yoga therapy experts.

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Article Synopsis
  • Six key chemical transformations of aryl carbonyls can be achieved by manipulating the amounts of borane-amine and titanium tetrachloride reagents, which work together as a hydride donor, catalyst, and halogen source.
  • These transformations include reducing carbonyls to alcohols, converting carbonyls to halides, and deoxygenating compounds to form alkanes, among others.
  • The selectivity of these reactions relies on the stability of the carbocation intermediates, allowing for precise transformations at the benzylic positions of substrates, enabling techniques like selective benzylic dehalogenation and dehydroxyhalogenation of alcohols.
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Cancer represents an intricate and heterogeneous ailment that evolves from a multitude of epigenetic and genetic variations that disrupt normal cellular function. The WNT/β-catenin pathway is essential in maintaining the balance between cell renewal and differentiation in various tissues. Abnormal activation of this pathway can lead to uncontrolled cell growth and initiate cancer across a variety of tissues such as the colon, skin, liver, and ovary.

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Geopsychiatry, a newly emerging discipline within psychiatry, examines the influence of geopolitical determinants on mental health and mental illness. Geopolitical determinants include conflict and wars, global austerity, climate change, public health crises (such as the coronavirus disease 2019 (COVID-19)), and migration. This study focuses on the two significant areas of climate change and migration.

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Background & objectives Interstitial lung diseases (ILD) cause progressive symptoms and decline in lung functions which impact health-related quality of life (HRQoL). Although HRQoL is gaining wider acceptance as an endpoint for disease perception, limited data is available regarding the same in Indians with ILD. Hence, this study was undertaken to assess HRQoL and its correlation with lung function parameters in individuals with ILD in a tertiary care setting in south India.

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Background: Cognitive deficits are the core component in persons with schizophrenia which impacts their socio-occupational functioning. Also, cognitive deficits cause significant impairment with the person's quality of life [3]. Hence, targeting such a pivotal aspect in persons with schizophrenia through suitable interventions is very important.

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Melioidosis, caused by Burkholderia pseudomallei, is known for its diverse clinical presentations and high mortality rate. This brief communication reports the clinico-microbiological profile of twenty cases of melioidosis in a tertiary care hospital over three years. We have analyzed demographic data, clinical presentations, microbiological findings, and treatment outcomes to enhance the understanding and management of this under-recognized infection.

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  • This observational study explores the use of x-ray images of chemoembolisation deposits for real-time image-guided radiation therapy in patients with hepatocellular carcinoma.
  • The study involves 50 patients who have undergone or will undergo stereotactic ablative radiation therapy, analyzing their imaging data and developing a deep learning method for motion tracking.
  • The goal is to demonstrate that the deep learning software can accurately track the placement of chemoembolisation materials, improving targeting accuracy without needing invasive procedures for fiducial markers.
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The exposure of autotrophs to high light intensities significantly impacts their photosynthetic performance. When combined with unpredictable climate changes, the lethality of these effects is exacerbated and, often surpassing the organisms' threshold for tolerance. In this regard, our study centres on examining the mitigating effects of mild osmotic stress induced by 2% Polyethylene Glycol (PEG) in conjunction with high-light conditions, using Chlamydomonas reinhardtii as a model system.

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A facile one-pot, two-step, reductive alkylation of amines with carboxylic acids has been achieved with BH-NH as an air- and moisture-stable reductant in the presence of TiF. The catalyst is effective for both amidation and reduction steps, and the product amines are isolated in high yields as either the free amines, for those products containing an arylamine, or the borane-complexes. The free amine can be separated from these complexes using BF-EtO, followed by hydrolysis.

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Article Synopsis
  • The study investigated the clinical features and long-term outcomes of myocarditis linked to COVID-19 vaccination, focusing on 333 affected patients under 30 compared to 100 with MIS-C.
  • Findings indicated that C-VAM patients were mostly young white males, experienced milder symptoms initially, but had higher rates of myocardial injury as shown by cardiac imaging.
  • Despite a generally benign course and no reported cardiac deaths during follow-up, 60% of patients still showed evidence of myocardial injury after approximately six months.
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Unlabelled: This position statement is documented based on the input from all contributing coauthors from the Indian Society of Critical Care Medicine (ISCCM), following a comprehensive literature review and summary of current scientific evidence. Its objective is to provide the standard perspective for the management of potential organ/tissue donors after brain death (BD) in adults only, regardless of the availability of technology. This document should only be used for guidance only and is not a substitute for proper clinical decision making in particular circumstances of any case.

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Unlabelled: Gender disparity in Critical Care Medicine (CCM) persists globally, with women being underrepresented. Female Intensivists remain a minority, facing challenges in academic and leadership positions at the workplace and within academic societies. The Indian Society of Critical Care Medicine (ISCCM) recognized the need for addressing issues related to gender parity and constituted its first Diversity Equity and Inclusion (DEI) Committee in 2023.

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Oxford Nanopore long reads of simulated bacterial communities from fresh spinach and surface water were generated (R9.4.1+SQK-LSK109 and R10.

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Background: Excessive daytime sleepiness (EDS), a cardinal symptom of obstructive sleep apnea (OSA) is assessed using Epworth Sleepiness Scale (ESS). Some limitations of ESS include graded responses, inapplicable situations and equal scores for active and passive situations. To overcome these limitations, we developed a novel sleepiness scale and evaluated its performance in patients with OSA.

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In contrast to the conversion of diphenylmethanol to the corresponding halides with an equivalent of titanium tetrachloride or -bromide, catalytic (50 mol%) titanium tetrafluoride converts benzhydrols in diethyl ether or dichloromethane to bis(benzhydryl) ethers within 0.5-1 h at room temperature. Cross ether formation with diphenylmethanols and primary aryl or aliphatic alcohols is achieved in the presence of 25 mol% TiF in refluxing toluene as solvent.

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Article Synopsis
  • Vitamin B12 is essential for blood cell formation and nerve insulation, and its deficiency can lead to neurological issues despite normal blood levels, as seen in a patient with symptoms like tremor and cognitive decline.
  • Researchers discovered an autoantibody against the transcobalamin receptor (CD320) that hinders vitamin B12 uptake in the brain, resulting in low levels found in cerebrospinal fluid even when blood levels appear normal.
  • The study suggests this autoimmune condition can be treated with immunosuppressive therapy and high-dose vitamin B12, and highlights the importance of recognizing how B12 transport differs in various tissues, which could improve diagnosis and treatment strategies for similar neurological disorders.
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Background: Psychosocial interventions, crucial for recovery in patients with schizophrenia, have often been developed and tested in high income countries. We aimed at developing and validating home-based a booklet based psycho-social intervention with inputs from stakeholders: patients, families, and mental health professionals (MHP) for patients with schizophrenia and related disorders in low resource settings.

Methods: We developed a preliminary version of psychosocial intervention booklets based on six themes derived from focus group discussions conducted with patients, families, and MHP.

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