16 results match your criteria: "Kshitiz Medical & Diagnostic Clinic[Affiliation]"

Article Synopsis
  • Scar tissue formation is a critical part of wound healing but can disrupt tissue function, particularly in cases like uterine scarring from cesarean sections.
  • The research focused on how deep uterine scars contribute to a condition called placenta accreta spectrum (PAS), where invasive cells can lead to serious complications during pregnancy.
  • The study found that scar tissue activates the mechanosensitive ion channel, Piezo1, which triggers inflammatory pathways and draws invasive cells towards the scar, highlighting how scar mechanics can disturb normal tissue interactions and potentially relate to cancer spread.
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To assess the role of high-sensitivity C-reactive protein (hs-CRP) as a biomarker, trait marker, and endophenotype in mania. Forty patients with mania, 40 of their first-degree relatives, and 30 healthy controls were recruited via a purposive sampling method from May 2020 to February 2021. hs-CRP levels were measured in all groups at baseline.

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Lactate-dependent chaperone-mediated autophagy induces oscillatory HIF-1α activity promoting proliferation of hypoxic cells.

Cell Syst

December 2022

Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA; Yale Systems Biology Institute, Yale University, Orange, CT 06477, USA. Electronic address:

Response to hypoxia is a highly regulated process, but little is known about single-cell responses to hypoxic conditions. Using fluorescent reporters of hypoxia response factor-1α (HIF-1α) activity in various cancer cell lines and patient-derived cancer cells, we show that hypoxic responses in individual cancer cells can be highly dynamic and variable. These responses fall into three classes, including oscillatory activity.

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Dry Eye Disease (DED) is a complex pathology affecting millions of people with significant impact on quality of life. Corneal inflammation, including via the nuclear factor kappa B (NFκB) pathway, plays a key etiological role in DED. Recombinant human proteoglycan 4 (rhPRG4) has been shown to be a clinically effective treatment for DED that has anti-inflammatory effects in corneal epithelial cells, but the underlying mechanism is still not understood.

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CD44 is an extracellular matrix receptor implicated in cancer progression. CD44 increases the invasibility of skin (SF) and endometrial stromal fibroblasts (ESF) by cancer and trophoblast cells. We reasoned that the evolution of CD44 expression can affect both, the fetal-maternal interaction through CD44 in ESF as well as vulnerability to malignant cancer through expression in SF.

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Among eutherian (placental) mammals, placental embedding into the maternal endometrium exhibits great differences, from being deeply invasive (e.g., humans) to noninvasive (e.

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Serum glial cell line derived neurotrophic factor (GDNF) homeostasis within brain circuits represent target for focal neuromodulation techniques such as high-definition transcranial direct current stimulation (HD-tDCS). In current trial 37 inpatients with bipolar disorder (BD) received active (n = 18) or sham (n = 19) anodal HD-tDCS over right dorsolateral prefrontal cortex (DLPFC). Outcome measures evaluated by YMRS (p = 0.

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An amendment to this paper has been published and can be accessed via a link at the top of the paper.

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Distinct Hepatic PKA and CDK Signaling Pathways Control Activity-Independent Pyruvate Kinase Phosphorylation and Hepatic Glucose Production.

Cell Rep

December 2019

Department of Cellular and Molecular Physiology, Yale University, New Haven, CT, USA; Department of Systems Biology Institute, Yale University, New Haven, CT, USA. Electronic address:

Pyruvate kinase is an important enzyme in glycolysis and a key metabolic control point. We recently observed a pyruvate kinase liver isoform (PKL) phosphorylation site at S113 that correlates with insulin resistance in rats on a 3 day high-fat diet (HFD) and suggests additional control points for PKL activity. However, in contrast to the classical model of PKL regulation, neither authentically phosphorylated PKL at S12 nor S113 alone is sufficient to alter enzyme kinetics or structure.

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Among mammals, placental invasion is correlated with vulnerability to malignancy. Animals with more invasive placentation (for example, humans) are more vulnerable to malignancy. To explain this correlation, we propose the hypothesis of 'Evolved Levels of Invasibility' proposing that the evolution of invasibility of stromal tissue affects both placental and cancer invasion.

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Purpose: To report a case of adult-onset Coats' disease with secondary retinal vasoproliferative tumor managed with dexamethasone intravitreal implant and retinal photocoagulation.

Methods: Case study.

Results: A 41-year-old female with counting finger vision was diagnosed with Coats' disease with secondary retinal vasoproliferative tumor in right eye.

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Purpose: The present study was conducted to evaluate the impact of scaling and root planing (SRP) on the C-reactive protein (CRP) levels of gingival crevicular fluid (GCF) and serum in chronic periodontitis patients with type 2 diabetes mellitus (T2DM-CP) or without type 2 diabetes mellitus (NDM-CP).

Methods: Forty-eight human participants were divided into two groups: an experimental (T2DM-CP) group (group I, n=24) comprising chronic periodontitis patients with random blood sugar ≥200 mg/dL and type 2 diabetes mellitus, and control (NDM-CP) group (group II, n=24) of those with chronic periodontitis and random blood sugar <200 without T2DM for the study. All subjects underwent nonsurgical periodontal therapy (NSPT) including complete SRP and subgingival debridement.

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Cyclin-dependent kinases regulate lysosomal degradation of hypoxia-inducible factor 1α to promote cell-cycle progression.

Proc Natl Acad Sci U S A

August 2014

Vascular Program, Institute for Cell Engineering,McKusick-Nathans Institute of Genetic Medicine,Johns Hopkins Physical Sciences-Oncology Center, Johns Hopkins University, Baltimore, MD 21205; andDepartments of Pediatrics,Medicine,Oncology,Radiation Oncology, andBiological Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205;

Hypoxia-inducible factor 1 (HIF-1) is a transcription factor that mediates adaptive responses to oxygen deprivation. In addition, the HIF-1α subunit has a nontranscriptional role as a negative regulator of DNA replication through effects on minichromosome maintenance helicase loading and activation. However, some cell types continue to replicate under hypoxic conditions.

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Adult stem cells hold great promise as a source of diverse terminally differentiated cell types for tissue engineering applications. However, due to the complexity of chemical and mechanical cues specifying differentiation outcomes, development of arbitrarily complex geometric and structural arrangements of cells, adopting multiple fates from the same initial stem cell population, has been difficult. Here, we show that the topography of the cell adhesion substratum can be an instructive cue to adult stem cells and topographical variations can strongly bias the differentiation outcome of the cells towards adipocyte or osteocyte fates.

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Matrix rigidity controls endothelial differentiation and morphogenesis of cardiac precursors.

Sci Signal

June 2012

Department of Biomedical Engineering, Johns Hopkins Medical Institutions, Baltimore, MD 21205, USA.

Tissue development and regeneration involve tightly coordinated and integrated processes: selective proliferation of resident stem and precursor cells, differentiation into target somatic cell type, and spatial morphological organization. The role of the mechanical environment in the coordination of these processes is poorly understood. We show that multipotent cells derived from native cardiac tissue continually monitored cell substratum rigidity and showed enhanced proliferation, endothelial differentiation, and morphogenesis when the cell substratum rigidity closely matched that of myocardium.

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Micro- and nanoengineering for stem cell biology: the promise with a caution.

Trends Biotechnol

August 2011

Department of Biomedical Engineering, The Johns Hopkins Medical Institutions, Baltimore, MD, USA.

Current techniques used in stem cell research only crudely mimic the physiological complexity of the stem cell niches. Recent advances in the field of micro- and nanoengineering have brought an array of in vitro cell culture models that have enabled development of novel, highly precise and standardized tools that capture physiological details in a single platform, with greater control, consistency, and throughput. In this review, we describe the micro- and nanotechnology-driven modern toolkit for stem cell biologists to design novel experiments in more physiological microenvironments with increased precision and standardization, and caution them against potential challenges that the modern technologies might present.

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