@Parsifaler Protective effects of Epo and derivatives against lung injuries. In normal alveolus: intact cellular component (AEC I, AEC II, fibroblast) and pulmonary capillary.
@Parsifaler In injured alveoli: Treatment with epo protect the lung from injury-induced cell and tissue damage by reducing apoptosis, oxidative stress,and pulmonary fibrosis.Prevent pulmonary edema and inflammatory lesions and,therefore,maintain cell integrity @drakchaurasia @DrLBoominathan ImageImage
@Parsifaler @drakchaurasia @DrLBoominathan The protective effects of EPO towards lung tissue were attributed to its effects in inhibiting expression of nuclear factor-κB (NF-κB) in lung tissues, inhibition of interleukin-6 (IL-6) and tumour necrosis factor alpha as proinflammatory cytokines,
@Parsifaler @drakchaurasia @DrLBoominathan and improvement of anti-inflammatory cytokine IL-10 levels. A similar study was also conducted to assess rhEPO effect on human respiratory epithelial cell apoptosis and detected cytoprotective through induction of an antiapoptotic Bcl-xL/Bax phenotype.
onlinelibrary.wiley.com/doi/10.1002/jm… Image

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More from @GrimaldesJ

10 Sep
✅The severity of COVID-19 disease, especially in the elderly and patients with comorbidities, is characterized by hypercytokinemia, an exaggerated immune response associated with an uncontrolled and excessive release of pro-inflammatory cytokine mediators (cytokine storm).
1. The immunomodulatory capacity of flavonoids, carried out by the regulation of inflammatory mediators, the inhibition of endothelial activation, the NLRP3 inflammasome, the toll-like receptors (TLR)
2. Or the bromodomain-containing protein 4 (BRD4), and the activation erythroid-derived nuclear factor 2 (Nrf2), could be beneficial in regulating cytokine storm during SARS-CoV-2 infection.
Read 11 tweets
7 Sep
Epidemiological studies show that older adults are the most affected by this pandemic, which makes chronological age a risk factor in SC2

Senescence👉stable growth arrest induced👉 cells reach the end of their replication potential or are exposed to various stressors👉infection.
pubmed.ncbi.nlm.nih.gov/18692159/

Main molecular pro-inflammatory pathways involved in aging and age-related diseases👇 Image
The role of inflammation in pathophysiological process and the possible action of CR and exercise👇 Image
Read 44 tweets
26 Jul
#Immunometabolism
PART 1

The general course of events during infections (Sars-CoV2) leading to "cytokine storm" can look like this:

1. Cells undergo damage, senescence, or become infected with a virus.
⬇️
2. Those cells release damage-associated molecular patterns (DAMPs) or pathogen-associated molecular patterns (PAMPs), which activate receptors in the immune system.
⬇️
3. DAMPs, like HBGM1, signal the production of the inflammatory response.
⬇️
4. HBGM1 binds to TLR2 / TLR4 / RAGE receptors to begin mobilizing pro-inflammatory cytokines.
⬇️
5. Activation of the NF-kB / NLRP3 inflammasomes ensues.
⬇️
6. Release of pro-inflammatory cytokines IL-1, IL-6, IL-1B, IL-18, IL-17, IL-22, and others occurs.
⬇️
Read 17 tweets
20 Feb
# Mechanistic therapy on Notch-3 signaling, N-acetyl-cysteine ​​prophylaxis and treatment in pulmonary fibrosis (# sequelacovid19) and other complications. #Immunometabolic
Proteins of the Notch family are cell surface receptors that TRANSDUCE SIGNALS BETWEEN NEIGHBORING CELLS. The Notch signaling pathway is evolutionarily highly conserved, including many aspects of vascular development.
The interaction of Notch receptors with ligands leads to the cleavage of the Notch intracellular domain (NICD) which then translocates to the nucleus and activates the transcription factor CBF1 / JBP-Jkappa, regulating downstream gene expression.
Read 15 tweets

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