PMID- 11339503 OWN - NLM STAT- MEDLINE DCOM- 20010913 LR - 20141120 IS - 1023-3830 (Print) IS - 1023-3830 (Linking) VI - 50 IP - 3 DP - 2001 Mar TI - Bradykinin receptor antagonists type 2 attenuate the inflammatory changes in peptidoglycan-induced acute arthritis in the Lewis rat. PG - 149-55 AB - OBJECTIVE AND DESIGN: We studied the ability of bradykinin (BK) receptor antagonists type 1 and 2 (B1-RA, B2-RA) to prevent acute inflammation. MATERIAL: A peptidoglycan-polysaccharide (PG-APS)-induced model of arthritis in the Lewis rat was analyzed. TREATMENT: Four groups of animals were studied for 5 days. Treatment was administered subcutaneously (s.c.) 1 mg/kg every 12 h. Group I received PG-APS and was treated with the B2-RA, CP-0597 (DArg-Arg-Pro-Hyp-Gly-Thi-Ser-DTic-NChg-Arg). Group II received PG-APS and was treated with a combined B1 and B2-RA, B9430 (DArg-Arg-Pro-Hyp-Gly-Igl-Ser-Dlgl-Oic-Arg). Group III received PG-APS and albumin control. Group IV received albumin control. METHODS: Joint diameter, liver weight, hematocrit, white blood count and plasma concentrations of prekallikrein, high molecular weight kininogen, HK and IL-beta were measured. Groups were compared by ANOVA. RESULTS: Acute arthritis and hepatomegaly were attenuated in the B2-RA-treated animals (p<0.05). Weight loss was more pronounced in the B1/B2-RA-treated animals. Anemia induced by PG-APS was prevented by B2-RA and B1/B2-RA treatment (p<0.001). A marked decrease in plasma HK to 64% of normal was found in the disease-untreated animals, which was completely normalized by B2-RA treatment and partially attenuated by the B1/B2-RA (78%). The decrease in plasma prekallikrein levels was prevented by combined B1/B2-RA treatment (p<0.05). Finally, elevated plasma IL-1beta levels were lowered by B1/B2-RA treatment and were below detection limits with the B2-RA treatment. CONCLUSIONS: These results indicate that the systemic inflammation is due in part to BK generation which can be blocked by B2-RA, while inhibiting the B1 receptor prevents an anti-inflammatory response. FAU - Uknis, A B AU - Uknis AB AD - Sol Sherry Thrombosis Research Center, Department of Medicine, Temple University School of Medicine, Philadelphia, PA 19140, USA. FAU - DeLa Cadena, R A AU - DeLa Cadena RA FAU - Janardham, R AU - Janardham R FAU - Sartor, R B AU - Sartor RB FAU - Whalley, E T AU - Whalley ET FAU - Colman, R W AU - Colman RW LA - eng GR - K08 AR01957/AR/NIAMS NIH HHS/United States GR - R01 DK43735/DK/NIDDK NIH HHS/United States GR - R41 AR45848/AR/NIAMS NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. PL - Switzerland TA - Inflamm Res JT - Inflammation research : official journal of the European Histamine Research Society ... [et al.] JID - 9508160 RN - 0 (B 9430) RN - 0 (Bradykinin Receptor Antagonists) RN - 0 (CP 0597) RN - 0 (Interleukin-1) RN - 0 (Oligopeptides) RN - 0 (Peptidoglycan) RN - 0 (Receptor, Bradykinin B2) RN - EC 3.4.21.- (Kallikreins) RN - S8TIM42R2W (Bradykinin) SB - IM MH - Acute Disease MH - Animals MH - Arthritis/chemically induced/*drug therapy MH - Bradykinin/analogs & derivatives/physiology/therapeutic use MH - *Bradykinin Receptor Antagonists MH - Female MH - Inflammation/*prevention & control MH - Interleukin-1/blood MH - Kallikreins/blood MH - Neutrophils/physiology MH - Oligopeptides/*therapeutic use MH - Peptidoglycan/*toxicity MH - Rats MH - Rats, Inbred Lew MH - Receptor, Bradykinin B2 EDAT- 2001/05/08 10:00 MHDA- 2001/09/14 10:01 CRDT- 2001/05/08 10:00 PHST- 2001/05/08 10:00 [pubmed] PHST- 2001/09/14 10:01 [medline] PHST- 2001/05/08 10:00 [entrez] AID - 10.1007/s000110050739 [pii] AID - 10.1007/s000110050739 [doi] PST - ppublish SO - Inflamm Res. 2001 Mar;50(3):149-55. doi: 10.1007/s000110050739.