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Influence of various forms of dialyzable leukocyte extracts on rat adjuvant arthritis

100%

Stancikova M., Rovensky J., Pekarek J., Orvisky E., Blazickova S., Cech K.

Archivum Immunologiae et Therapiae Experimentalis

1994

tom 42

nr 4

Role of endothelial nitric oxide synthase in aggravation of indomethacin-induced gastric damage in adjuvant arthritic rats

72%

Kato S., Ohkawa F., Ito Y., Amagase K., Takeuchi K.

Journal of Physiology and Pharmacology

2009

tom 60

nr 4

147-155

The role of nitric oxide synthase (NOS) isozymes in the aggravation of indomethacin-induced gastric damage in adjuvant arthritic rats was investigated. Two weeks after injection of Freund’s complete adjuvant, the animals were given indomethacin, and the stomach was examined for damage 4 h later. Indomethacin caused hemorrhagic lesions in the normal rat stomach, and these lesions were markedly aggravated in arthritic rats. Pretreatment with L-NAME (a nonselective inhibitor of NOS) and aminoguanidine (a relative selective inhibitor of iNOS) did not affect the ulcerogenic response in normal rats but dose-dependently prevented the aggravation of lesions in arthritic rats, but the effect of aminoguanidine was apparently less than that of L-NAME. The increased ulcerogenic response in arthritic rats was significantly suppressed by 1400 W (a selective inhibitor of iNOS) and L-NIO (a selective inhibitor of eNOS) but not by L-NPA (a selective inhibitor of nNOS). The concurrent administration of 1400 W and L-NIO almost totally abolished the aggravation of damage in arthritic rats. The expressions of eNOS and iNOS but not nNOS in the gastric mucosa were clearly enhanced in arthritic rats. Mucosal levels of non-protein sulfhydryls were significantly lower in arthritic rats than those in normal rats. The aggravation of damage in arthritic rats was significantly prevented by glutathione. These results suggest that the increased ulcerogenic response to indomethacin in arthritic rat stomachs is mediated by NO derived from eNOS in addition to iNOS. It is assumed that eNOS/NO may act harmfully on the gastric mucosa of arthritic rats with mucosal SH deficiency.

The effects of adjuvant arthritis on the myometrial adrenergic functions in the nonpregnant and the late-pregnant rat

72%

Csik G., Spiegl G., Minorics R., Falkay G., Zupko I.

Journal of Physiology and Pharmacology

2010

tom 61

nr 5

Ograniczanie wyników

2 Journal of Physiology and Pharmacology

1 Archivum Immunologiae et Therapiae Experimentalis

1 Amagase K.

1 Blazickova S.

1 Cech K.

1 Csik G.

1 Falkay G.

1 Ito Y.

1 Kato S.

1 Minorics R.

1 Ohkawa F.

1 Orvisky E.

1 Pekarek J.

1 Rovensky J.

1 Spiegl G.

1 Stancikova M.

1 Takeuchi K.

1 Zupko I.

1 2010

1 2009

1 1994

Wyniki wyszukiwania

Influence of various forms of dialyzable leukocyte extracts on rat adjuvant arthritis

Role of endothelial nitric oxide synthase in aggravation of indomethacin-induced gastric damage in adjuvant arthritic rats

The effects of adjuvant arthritis on the myometrial adrenergic functions in the nonpregnant and the late-pregnant rat