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Cystatin C : a new ...
Cystatin C : a new marker of biocompatibility or a good marker for the redistribution of LMW proteins during hemodialysis?
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- Thysell, Hans (författare)
- Lund University,Lunds universitet,Njurmedicin,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Nephrology,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Grubb, Anders (författare)
- Lund University,Lunds universitet,Avdelningen för klinisk kemi och farmakologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Cystatin C, njursjukdom, amyloidos och antibiotika,Forskargrupper vid Lunds universitet,Division of Clinical Chemistry and Pharmacology,Department of Laboratory Medicine,Faculty of Medicine,Cystatin C, renal disease, amyloidosis and antibiotics,Lund University Research Groups,Skåne University Hospital
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Lindholm, Tore (författare)
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Ljunggren, Lennart (författare)
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Mårtensson, Lena (författare)
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(creator_code:org_t)
- 1988
- 1988
- Engelska.
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Ingår i: ASAIO Transactions. - 0889-7190. ; 34:3, s. 202-204
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Abstract
Ämnesord
Stäng
- The mechanism(s) behind the larger relative increase of Plasma beta 2 microglobulin (P-beta 2m) than that of Plasma albumin (P-alb) during Cuprophan hemodialysis is disputed. To elucidate this phenomenon P-alb, P-beta 2m (MW 11,800) and Plasma cystatin (P-cC; MW 13,000) an inhibitor of cystein proteinases, were determined before and after a Cuprophan or polysulphone hemodialysis (4-7 hr, QB 200 ml/min) in 30 stable regular dialysis treatment (RDT) patients. Body weight (BW) decreased by 2.5 +/- 1.4% (mean +/- SD). P-alb, P-beta 2m and P-cC increased by 11.4 +/- 14.8%, 15.4 +/- 11.5%, and 22.1 +/- 14.3%, respectively, during Cuprophan dialysis. The relative increase of P-cC was larger than that of P-beta 2m (P less than 0.05) and that of P-alb (P less than 0.02). During polysulphone dialysis BW decreased by 4.1 +/- 1.8%. P-alb, P-beta 2m, and P-cC increased almost equally by 28.1 +/- 18, 26.5 +/- 19.2, and 26.8 +/- 14.4%, respectively. These results are hard to interpret. Is the increase in P-cC a new marker of biocompatibility or does it reflect the true shift of low molecular weight (LMW) proteins between the interstitial and the plasma volume during hemodialysis better than P-beta 2m? In vitro studies indicate that small amounts of both Serum beta 2m (S-beta 2m) and Serum cystatin C (S-cC) are adsorbed to or sieved through the Cuprophan membrane, findings which render the kinetics of LMW proteins during hemodialysis still more complex.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Urologi och njurmedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Urology and Nephrology (hsv//eng)
Nyckelord
- Biocompatible Materials
- Blood Proteins
- Body Weight
- Cellulose/analogs & derivatives
- Cystatin C
- Cystatins
- Humans
- Membranes, Artificial
- Polymers
- Protease Inhibitors/blood
- Renal Dialysis
- Serum Albumin/analysis
- Sulfones
- beta 2-Microglobulin/analysis
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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