Inhibitory effects of some antibiotics on activity of carbonic anhydrase from rainbow trout erythrocytes in vitro and in vivo

HISAR O., HISAR S., Kufrevioglu O., Yanik T.

JOURNAL OF AQUATIC ANIMAL HEALTH, cilt.15, sa.3, ss.221-228, 2003 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 15 Sayı: 3
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1577/h03-005
  • Dergi Adı: JOURNAL OF AQUATIC ANIMAL HEALTH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.221-228
  • Atatürk Üniversitesi Adresli: Evet

Özet

Carbonic anhydrase (CA) from erythrocytes of rainbow trout Oncorhynchus mykiss was purified by affinity chromatography through a process comprising hemolysate preparation, sepharose-4B-L-tyrosine-sulfanylamide affinity get chromatography, and dialysis. Then the effects of three antibiotics-sodium ampicillin, streptomycin, and trimethoprim plus sulfamethoxazole-on this enzyme were investigated in vitro and in vivo. Inhibition effects were determined in vitro by means of the Lineweaver-Burk and activity-antibiotic regression graphs. The dissociation constant of the enzyme inhibitor complex (K-i) and 50% inhibitory values were 2.16 +/- 0.40 and 1.87 mM for sodium ampicillin, 7.40 +/- 0.310 and 5.21 mM for streptomycin, and 18.50 +/- 0.35 and 9.74 mM for trimethoprim-sulfamethoxazole. The in vivo experiment demonstrated that CA was significantly inhibited by trimethoprim-sulfamethoxazole but not by sodium ampicillin and streptomycin.