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Related Concept Videos

Pericarditis I: Introduction01:22

Pericarditis I: Introduction

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Pericarditis is defined as the inflammation of the pericardium, the thin, sac-like membrane surrounding the heart. This condition can cause significant chest pain and other symptoms, often necessitating medical intervention. The pericardium has two layers: the inner visceral layer and the outer parietal layer, separated by a small amount of fluid that reduces friction during heartbeats.Types of PericarditisPericarditis can be classified into several types based on the duration and nature of the...
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Rudolph Virchow discovered spindle-shaped cells called fibroblasts in 1858. Inactive fibroblasts, called fibrocytes, become activated by various stimuli, such as growth factors and inflammatory cytokines. Activated fibroblasts play a crucial role in wound healing, inflammation, formation of new blood vessels, and cancer progression. Uncontrolled activation of fibroblasts results in fibrosis, the excess deposition of fibrous tissue, which can lead to scarring and affect normal organs. This...
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Chronic Pancreatitis I: Introduction01:24

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The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
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The JAK-STAT Signaling Pathway01:20

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Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
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Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
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Related Experiment Video

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Detection of microRNA Expression in Peritoneal Membrane of Rats Using Quantitative Real-time PCR
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Molecular pathways in peritoneal fibrosis.

Michael S Balzer1

  • 1Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany.

Cellular Signalling
|September 14, 2020
PubMed
Summary

Peritoneal fibrosis, a complication of peritoneal dialysis (PD), involves inflammation and fibrotic processes. Understanding these pathways is crucial for improving PD technique survival and patient outcomes.

Keywords:
FibrosisGlucoseInflammationPeritoneal dialysis (PD)Peritoneal membraneSignaling

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Area of Science:

  • Nephrology
  • Pathology
  • Biomedical Engineering

Background:

  • Peritoneal dialysis (PD) offers quality-of-life and cost benefits over hemodialysis for end-stage renal disease.
  • Long-term PD use can cause peritoneal fibrosis, a key factor in technique failure and patient morbidity.
  • Peritoneal fibrosis involves complex interactions between chronic inflammation and fibrotic mechanisms.

Purpose of the Study:

  • To define the histopathology of peritoneal fibrosis.
  • To elucidate the interplay between fibrosis, angiogenesis, and epithelial-to-mesenchymal transition (EMT).
  • To review key fibrogenic and inflammatory pathways in PD-associated peritoneal fibrosis.

Main Methods:

  • Histopathological analysis of peritoneal membrane changes.
  • Review of molecular signaling pathways, including TGF-β and CTGF.
  • Examination of inflammatory cascades involving NLRP3, IL-1β, IL-6, and IL-17.

Main Results:

  • Peritoneal fibrosis is characterized by specific histopathological changes.
  • EMT plays a significant role in the fibrotic process.
  • Multiple signaling pathways, including TGF-β and inflammatory cytokines, contribute to fibrosis development.

Conclusions:

  • Peritoneal fibrosis is a multifactorial process driven by inflammation and fibrogenic signaling.
  • Targeting these pathways may offer therapeutic strategies to prevent or treat peritoneal fibrosis.
  • Further research is needed to translate these findings into improved PD patient care.