Low serum alpha-1-antitrypsin specific activity in monoclonal gammopathies
Nema prikaza
Autori
Jelić-Ivanović, ZoranaStanković, B
Topić, Aleksandra
Spasojević-Kalimanovska, Vesna
Spasić, S
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Background. Serum alpha(1)-antitrypsin (alpha 1AT) antigen concentration is elevated in malignancies as the result of acute phase reaction. In the present study, we examined whether the alpha 1AT elevation in monoclonal gammopathies was accompanied by an adequate increase of its functional activity. Methods. In this case-control study, serum alpha 1AT concentration was measured in 187 ambulatory patients with monoclonal gammopathies and 320 healthy blood donors matched according to sex and age. The alpha 1AT antigen concentration was assayed by immunonephelometry, whereas its functional activity was measured as trypsin inhibitory capacity (TIC), The specific alpha 1AT inhibitory activity (SIA) was calculated, defined as the TIC/antigen concentration ratio. Results. The alpha 1AT antigen concentrations obtained in the patients' samples were very significantly higher as compared with the corresponding values in the control group (mean+/-SD =134+/-41.9% of normal, p lt 0.001). However, th...e TIC values were higher in the patients than in the healthy controls only by 4% (104+/-23.8%, p lt 0.05). The specific alpha 1AT activity was very significantly lower in the patients, as compared with the controls (p lt 0.001), indicating that serum alpha 1AT in monoclonal gammopathies was partially inactive. Conclusions. As poor correlation between the TIC values and the antigen concentrations was obtained in the patient group as well as the decreased specific alpha 1AT activities, the TIC values in patients with monoclonal gammopathies should be interpreted with caution.
Izvor:
Panminerva Medica, 2000, 42, 1, 17-21Izdavač:
- Edizioni Minerva Medica, Turin
Institucija/grupa
PharmacyTY - JOUR AU - Jelić-Ivanović, Zorana AU - Stanković, B AU - Topić, Aleksandra AU - Spasojević-Kalimanovska, Vesna AU - Spasić, S PY - 2000 UR - https://farfar.pharmacy.bg.ac.rs/handle/123456789/246 AB - Background. Serum alpha(1)-antitrypsin (alpha 1AT) antigen concentration is elevated in malignancies as the result of acute phase reaction. In the present study, we examined whether the alpha 1AT elevation in monoclonal gammopathies was accompanied by an adequate increase of its functional activity. Methods. In this case-control study, serum alpha 1AT concentration was measured in 187 ambulatory patients with monoclonal gammopathies and 320 healthy blood donors matched according to sex and age. The alpha 1AT antigen concentration was assayed by immunonephelometry, whereas its functional activity was measured as trypsin inhibitory capacity (TIC), The specific alpha 1AT inhibitory activity (SIA) was calculated, defined as the TIC/antigen concentration ratio. Results. The alpha 1AT antigen concentrations obtained in the patients' samples were very significantly higher as compared with the corresponding values in the control group (mean+/-SD =134+/-41.9% of normal, p lt 0.001). However, the TIC values were higher in the patients than in the healthy controls only by 4% (104+/-23.8%, p lt 0.05). The specific alpha 1AT activity was very significantly lower in the patients, as compared with the controls (p lt 0.001), indicating that serum alpha 1AT in monoclonal gammopathies was partially inactive. Conclusions. As poor correlation between the TIC values and the antigen concentrations was obtained in the patient group as well as the decreased specific alpha 1AT activities, the TIC values in patients with monoclonal gammopathies should be interpreted with caution. PB - Edizioni Minerva Medica, Turin T2 - Panminerva Medica T1 - Low serum alpha-1-antitrypsin specific activity in monoclonal gammopathies VL - 42 IS - 1 SP - 17 EP - 21 UR - https://hdl.handle.net/21.15107/rcub_farfar_246 ER -
@article{ author = "Jelić-Ivanović, Zorana and Stanković, B and Topić, Aleksandra and Spasojević-Kalimanovska, Vesna and Spasić, S", year = "2000", abstract = "Background. Serum alpha(1)-antitrypsin (alpha 1AT) antigen concentration is elevated in malignancies as the result of acute phase reaction. In the present study, we examined whether the alpha 1AT elevation in monoclonal gammopathies was accompanied by an adequate increase of its functional activity. Methods. In this case-control study, serum alpha 1AT concentration was measured in 187 ambulatory patients with monoclonal gammopathies and 320 healthy blood donors matched according to sex and age. The alpha 1AT antigen concentration was assayed by immunonephelometry, whereas its functional activity was measured as trypsin inhibitory capacity (TIC), The specific alpha 1AT inhibitory activity (SIA) was calculated, defined as the TIC/antigen concentration ratio. Results. The alpha 1AT antigen concentrations obtained in the patients' samples were very significantly higher as compared with the corresponding values in the control group (mean+/-SD =134+/-41.9% of normal, p lt 0.001). However, the TIC values were higher in the patients than in the healthy controls only by 4% (104+/-23.8%, p lt 0.05). The specific alpha 1AT activity was very significantly lower in the patients, as compared with the controls (p lt 0.001), indicating that serum alpha 1AT in monoclonal gammopathies was partially inactive. Conclusions. As poor correlation between the TIC values and the antigen concentrations was obtained in the patient group as well as the decreased specific alpha 1AT activities, the TIC values in patients with monoclonal gammopathies should be interpreted with caution.", publisher = "Edizioni Minerva Medica, Turin", journal = "Panminerva Medica", title = "Low serum alpha-1-antitrypsin specific activity in monoclonal gammopathies", volume = "42", number = "1", pages = "17-21", url = "https://hdl.handle.net/21.15107/rcub_farfar_246" }
Jelić-Ivanović, Z., Stanković, B., Topić, A., Spasojević-Kalimanovska, V.,& Spasić, S.. (2000). Low serum alpha-1-antitrypsin specific activity in monoclonal gammopathies. in Panminerva Medica Edizioni Minerva Medica, Turin., 42(1), 17-21. https://hdl.handle.net/21.15107/rcub_farfar_246
Jelić-Ivanović Z, Stanković B, Topić A, Spasojević-Kalimanovska V, Spasić S. Low serum alpha-1-antitrypsin specific activity in monoclonal gammopathies. in Panminerva Medica. 2000;42(1):17-21. https://hdl.handle.net/21.15107/rcub_farfar_246 .
Jelić-Ivanović, Zorana, Stanković, B, Topić, Aleksandra, Spasojević-Kalimanovska, Vesna, Spasić, S, "Low serum alpha-1-antitrypsin specific activity in monoclonal gammopathies" in Panminerva Medica, 42, no. 1 (2000):17-21, https://hdl.handle.net/21.15107/rcub_farfar_246 .