2020
DOI: 10.1016/j.imr.2020.02.006
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Rumex japonicus Houtt. alleviates dextran sulfate sodium-induced colitis by protecting tight junctions in mice

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Cited by 18 publications
(21 citation statements)
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“…A possible explanation for the oral bioavailability of both LMWoversulfated heparin and PPS could be their ability to induce increased intestinal epithelial permeability. Such an interpretation agrees with the finding that oral administration of dextran sulfate, a highly negatively charged polysaccharides such as LMWoversulfated heparin and PPS, is associated with loss of occluded ZO-1 in the tight junction complex (TJ) [ (Kim et al, 2020).…”
Section: Methodssupporting
confidence: 88%
See 1 more Smart Citation
“…A possible explanation for the oral bioavailability of both LMWoversulfated heparin and PPS could be their ability to induce increased intestinal epithelial permeability. Such an interpretation agrees with the finding that oral administration of dextran sulfate, a highly negatively charged polysaccharides such as LMWoversulfated heparin and PPS, is associated with loss of occluded ZO-1 in the tight junction complex (TJ) [ (Kim et al, 2020).…”
Section: Methodssupporting
confidence: 88%
“…Thus, the use of oral PPS to suppress hepcidin seems feasible, offering a promising strategy to complement subcutaneous injection of PPS, especially in chronic treatment, but requires further study. For interstitial cystitis, the recommended oral treatment is 400 mg of PPS daily for a long period (186 months) which is well tolerated (Kim et al, 2020), so it may be interesting, in the future, to try chronic treatment in mice with lower concentrations than those used in acute care. At present, subcutaneous PPS injection appears to be very effective in reducing hepcidin expression in terms of drug absorption, dose (much lower than oral administration), and negligible side effects.…”
Section: Methodsmentioning
confidence: 99%
“…In fact, roots of the genus Rumex were often reported to be effective against gastrointestinal diseases [28] . In addition, according to RRR phytochemical screening results, its profile, with condensed tannins, p‐ coumaric acid, chlorogenic acids and ECGC, may explain the excellence of this organ for this activity.…”
Section: Resultsmentioning
confidence: 99%
“…However, tight junctions (TJ) are crucial for intestinal epithelium integrity, and some flavonoids such as EGCG, [31] as well as R. japonicus extract, [28] have been reported to exhibit anti‐inflammatory activity and protective effects on intestinal TJ barrier functions, ensuring the improvement of disorganized intestinal architecture by regulating the expressions of Zonula Occludens‐1, occludin and claudin‐2, which may be related to inhibition of pro‐inflammatory cytokines, such as TNF‐α [28] …”
Section: Resultsmentioning
confidence: 99%
“…For example, under inflammatory conditions, a damaged tight-junction barrier can increase paracellular permeability and cause cell damage, such as erosion, ulcers, and apoptosis. It can also stimulate the release of pro-inflammatory cytokines, such as TNF-α and IFN-γ, ultimately worsening the inflammation [ 42 , 43 ]. It has been reported that cell-cycle arrest can also cause cell apoptosis in response to DNA damage [ 44 ].…”
Section: Discussionmentioning
confidence: 99%