Publications by authors named "Sukanta Bhattacharya"

Cordyceps, an entomopathogenic fungus belonging to the Ascomycota phylum, is a familiar remedial mushroom that is extensively used in the traditional medicinal system, especially in South Asian nations. The significance of this genus' members in a range of therapeutic and biotechnological applications has long been acknowledged. The exceedingly valuable fungus Ophiocordyceps sinensis (Cordyceps sinensis) is found in the alpine meadows of Bhutan, Nepal, Tibet, and India, where it is severely harvested.

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The oro-respiratory microbiome is impacted by inhalable exposures such as smoking and has been associated with respiratory health conditions. However, the effect of emerging toxicants, particularly engineered nanoparticles, alone or in co-exposure with smoking, is poorly understood. Here, we investigated the impact of sub-chronic exposure to carbon nanotube (CNT) particles, cigarette smoke extract (CSE), and their combination.

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Article Synopsis
  • * This study analyzed four lung toxicity models—acute chlorine exposure, chronic carbon nanotube exposure, chronic cigarette smoke exposure, and a combination of both—to assess how these exposures modulate the expression of AQPs and other lung health indicators.
  • * The results indicated that different toxicity models affect AQPs in unique ways, with acute chlorine exposure significantly increasing AQP1 and chronic carbon nanotube exposure increasing AQP3, while other AQPs showed varied responses, and overall lung protective proteins (SP-A and
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Carbon nanotubes (CNTs) are emerging environmental and occupational toxicants known to induce lung immunotoxicity. While the underlying mechanisms are evolving, it is yet unknown whether inhaled CNTs would cause abnormalities in gut microbiota (dysbiosis), and if such microbiota alteration plays a role in the modulation of CNT-induced lung immunotoxicity. It is also unknown whether co-exposure to tobacco smoke will modulate CNT effects.

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Article Synopsis
  • - IL-10 shows strong antifibrotic effects in adult fibrosis by activating a STAT3-dependent signaling pathway that influences hyaluronan (HA) metabolism, helping adult fibroblasts create an HA-rich environment that promotes fetal-like healing with less scarring.
  • - Research using specific mouse models reveals that the regenerative benefits of IL-10 in wound healing rely on fibroblast-specific STAT3 signaling and HA production.
  • - These findings suggest that IL-10 has a crucial role beyond immune regulation, indicating potential new treatments targeting HA metabolism to reduce fibrosis in various conditions influenced by inflammation.
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Cytochrome P450 enzymes are a structurally conserved but functionally diverse group of heme-containing mixed function oxidases found across both prokaryotic and eukaryotic forms of the microbial world. Microbial P450s are known to perform diverse functions ranging from the synthesis of cell wall components to xenobiotic/drug metabolism to biodegradation of environmental chemicals. Conventionally, many microbial systems have been reported to mimic mammalian P450-like activation of drugs and were proposed as the in-vitro models of mammalian drug metabolism.

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Vincristine, a potent chemotherapeutic agent, is highly neurotoxic. If given intrathecally by accident it is almost always fatal. We are reporting a 6 year old girl with acute lymphoblastic leukaemia in complete remission, who was given inadvertent intrathecal Vincristine instead of Methotrexate.

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Evolution of lignocellulose decomposition was one of the most ecologically important innovations in fungi. White-rot fungi in the Agaricomycetes (mushrooms and relatives) are the most effective microorganisms in degrading both cellulose and lignin components of woody plant cell walls (PCW). However, the precise evolutionary origins of lignocellulose decomposition are poorly understood, largely because certain early-diverging clades of Agaricomycetes and its sister group, the Dacrymycetes, have yet to be sampled, or have been undersampled, in comparative genomic studies.

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Background: Mid-gestation fetal cutaneous wounds heal scarlessly and this has been attributed in part to abundant hyaluronan (HA) in the extracellular matrix (ECM) and a unique fibroblast phenotype. We recently reported a novel role for interleukin 10 (IL-10) as a regulator of HA synthesis in the fetal ECM, as well as the ability of the fetal fibroblast to produce an HA-rich pericellular matrix (PCM). We hypothesized that IL-10-mediated HA synthesis was essential to the fetal fibroblast functional phenotype and, moreover, that this phenotype could be recapitulated in adult fibroblasts via supplementation with IL-10 via an HA dependent process.

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Background: Anti-inflammatory cytokine interleukin (IL)-10 has been shown to induce regenerative healing in postnatal wounds. A viral homolog of IL-10 produced by human cytomegalovirus (CMV IL-10) similarly generates potent immunoregulatory effects, but its effects on wound healing have not been investigated. Currently, there are limited cost-effective methods of screening vulnerary therapeutics.

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Background: Chronic wounds are characterized by a wound healing and neovascularization deficit. Strategies to increase neovascularization can significantly improve chronic wound healing. Insulin-like growth factor (IGF)-1 is reported to be a keratinocyte mitogen and is believed to induce angiogenesis via a vascular endothelial growth factor (VEGF)-dependent pathway.

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Article Synopsis
  • High molecular weight polycyclic aromatic hydrocarbons (HMW-PAHs), like benzo[a]pyrene (BaP), are tough to break down in soil, and traditional methods using white rot fungus have had limited success.
  • This study introduces a new biphasic process that starts under nutrient-rich conditions, enhancing the activity of key PAH-oxidizing enzymes, which contributes to the degradation of BaP.
  • The process transitions to nutrient-poor conditions, resulting in a significant increase in BaP degradation effectiveness, making it a promising approach for bioremediation of contaminated soils.
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In the present study, laccase production from a locally isolated hyperactive strain of Pleurotus sp. under solid state fermentation (SSF) was carried out and the interactions between different parameters of fermentation were studied using response surface methodology. The saddle shaped response surface plots depicting dual conditions for the enhanced production indicated the presence of isozymes with production optima at different conditions which was verified experimentally.

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