McMillan, D.C. , Slater, C., Preston, T. , Falconer, J.S. and Fearon, K.C.H. (1996) Simultaneous measurement of albumin and fibrinogen synthetic rates in normal fasted subjects. Nutrition, 12(9), pp. 602-607. (doi: 10.1016/S0899-9007(96)00172-4)
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Abstract
Albumin and fibrinogen synthesis appear to account for the majority of protein exported by the liver and therefore make a substantial contribution to that of whole-body protein synthesis. However, data on the protein syntheticrates of albumin and fibrinogen in normalsubjects are limited. Albumin and fibrinogensyntheticrates were measured simultaneously over a 120-min period in normalsubjects (n = 6) by using a flooding dose of <sup>2</sup>H<sub>5</sub>-phenylalanine. Tracer incorporation into proteins was measured by gas chromatography/mass spectrometry. Body mass index, circulating concentrations of insulin, albumin, fibrinogen, C-reactive protein, and plasma volumes of the subjects were all within the normal reference range. There was a small and transient rise in circulating insulin concentrations following the flooding dose of phenylalanine. The median fractional syntheticrate and absolute syntheticrate for albumin was 10.3%/d and 208 mg · kg<sup>−1</sup> · d<sup>−1</sup>, respectively. The median fractional syntheticrate and absolute syntheticrate for fibrinogen was 19.5%/d and 28 mg · kg<sup>−1</sup> · d<sup>−1</sup>. In the context of the current interest in manipulating the inflammatory response of patients with various disease states, we introduce the concept of an acute phase protein quotient (APPQ). The APPQ is defined as the absolute rate of fibrinogen synthesis divided by that of albumin. In this group of normalsubjects, the median APPQ was 0.14.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Preston, Professor Tom and McMillan, Professor Donald and Slater, Dr Christine |
| Authors: | McMillan, D.C., Slater, C., Preston, T., Falconer, J.S., and Fearon, K.C.H. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing > Clinical Specialities College of Science and Engineering > Scottish Universities Environmental Research Centre |
| Journal Name: | Nutrition |
| ISSN: | 0899-9007 |
| Published Online: | 25 March 1999 |
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