β2-Microglobulin of Lymphocytes

1976 ◽  
pp. 87-92
Author(s):  
T. P. Conway ◽  
M. D. Poulik
Keyword(s):  
Β2 Microglobulin

A NMR study of human β2 microglobulin

1981 ◽  
Vol 78 ◽  
pp. 837-841 ◽  
Author(s):  
Marcel Sarrazin ◽  
Claudette Briand ◽  
Madeleine Bourdeaux ◽  
Michèle Chauvet ◽  
Claude Vincent ◽  
...  
Keyword(s):  
Β2 Microglobulin ◽  
Nmr Study

Urinary Beta-Thromboglobulin Correlates with Impairment of Renal Function in Patients with Diabetic Nephropathy

1986 ◽  
Vol 56 (02) ◽  
pp. 229-231 ◽  
Author(s):  
A H Hopper ◽  
H Tindall ◽  
J A Davies
Keyword(s):  
Renal Function ◽  
Diabetic Nephropathy ◽  
Microvascular Disease ◽  
Normal Subjects ◽  
Specific Protein ◽  
Creatinine Concentration ◽  
Β2 Microglobulin ◽  
Plasma Creatinine Concentration ◽  
Insulin Dependent ◽  
Indium 111

SummaryTBeta-thromboglobulin (βTG) is a platelet-specific protein and since its concentration in plasma rises when platelets are activated, it has been used as an indicator of platelet involvement in vascular disease. Since platelets might be involved in the pathogenesis of diabetic microvascular disease we measured urinary βTG in 20 insulin-dependent diabetics with nephropathy and compared the results with those from 20 normal subjects. Measurement of βTG in urine was undertaken to avoid errors induced by blood sampling and to gain information over a prolonged period using a single assay. Measurements were made of βTG, β2-microglobulin and total protein in urine collected for 24 h and creatinine and β2 microglobulin in plasma. Survival of indium-111-labelled platelets was measured in nine patients. Urinary PTG was significantly (p <0.02) increased in the 20 patients compared with 20 normal volunteers (median value 1.3 vs 0.8 μg/24 h). There was a strong correlation between urinary βTG excretion and plasma creatinine concentration (r = 0.8, p <0.0001) and plasma β2-microglobulin concentration (r = 0.9, p <0.0001). Urinary βTG concentration did not correlate with platelet survival. The results indicate that although urinary βTG is significantly increased in patients with diabetic nephropathy its concentration in urine correlates with indicators of glomerular filtration rather than with a test of platelet activation.

scholarly journals Randomised trial on clinical performances and biocompatibility of four high-flux hemodialyzers in two mode treatments: hemodialysis vs post dilution hemodiafiltration

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Marion Morena ◽  
Caroline Creput ◽  
Mouloud Bouzernidj ◽  
Annie Rodriguez ◽  
Lotfi Chalabi ◽  
...  
Keyword(s):  
Primary Outcome ◽  
Randomised Trial ◽  
High Flux ◽  
Β2 Microglobulin ◽  
Inflammatory Parameters ◽  
Large Size ◽  
Significant Difference ◽  
Good Biocompatibility ◽  
Very High ◽  
Solute Clearance

AbstractThis prospective multicenter randomized comparative cross-over trial aimed at evaluating the influence of hemodialysis vs post-dilution hemodiafiltration with high-flux dialyzers in solute clearance and biocompatibility profile. 32 patients were sequentially dialyzed with Leoceed-21HX, Polypure-22S+, Rexsys-27H and VIE-21A. Primary outcome was β2-microglobulin removal. Secondary outcomes were (i) extraction of other uremic solutes (ii) parameters of inflammation and nutrition and (iii) comparative quantification of perdialytic albumin losses (using total ‘TDC’ vs partial ‘PDC’ collection of dialysate). Significant increases in removal rates of β2-microglobulin (84.7 ± 0.8 vs 71.6 ± 0.8 mg/L), myoglobin (65.9 ± 1.3 vs 38.6 ± 1.3 µg/L), free immunoglobulin light chains Kappa (74.9 ± 0.8 vs 55.6 ± 0.8 mg/L), β-trace protein (54.8 ± 1.3 vs 26.8 ± 1.4 mg/L) and orosomucoid (11.0 ± 1.1 vs 6.0 ± 1.1 g/L) but not myostatin (14.8 ± 1.5 vs 13.0 ± 1.5 ng/mL) were observed in HDF compared to HD when pooling all dialyzers. Rexsys and VIE-A use in both HD and HDF subgroups was associated to a better removal of middle/large-size molecules compared to Leoceed and Polypure, except β2-microglobulin for Rexsys. Inflammatory parameters were unchanged between dialyzers without any interaction with dialysis modality. Mean dialysate albumin loss was comparable between TDC and PDC (1.855 vs 1.826 g/session for TDC and PDC respectively). In addition, a significant difference in albumin loss was observed between dialyzers with the highest value (4.5 g/session) observed using Rexsys. Use of all dialyzers was associated with good removals of the large spectrum of uremic toxins tested and good biocompatibility profiles, with an additional gain in removal performances with HDF. Larger surface area, thinner wall and resultant very high ultrafiltration coefficient of Rexsys should be taken into account in its clear performance advantages.

scholarly journals Investigation of a Peptide Responsible for Amyloid Fibril Formation of β2-Microglobulin byAchromobacterProtease I

2001 ◽  
Vol 277 (2) ◽  
pp. 1310-1315 ◽  
Author(s):  
Gennady V. Kozhukh ◽  
Yoshihisa Hagihara ◽  
Toru Kawakami ◽  
Kazuhiro Hasegawa ◽  
Hironobu Naiki ◽  
...  
Keyword(s):  
Amyloid Fibril ◽  
Fibril Formation ◽  
Β2 Microglobulin ◽  
Amyloid Fibril Formation

scholarly journals Fibril Growth Kinetics Reveal a Region of β2-microglobulin Important for Nucleation and Elongation of Aggregation

2008 ◽  
Vol 378 (1) ◽  
pp. 251-263 ◽  
Author(s):  
Geoffrey W. Platt ◽  
Katy E. Routledge ◽  
Steve W. Homans ◽  
Sheena E. Radford
Keyword(s):  
Growth Kinetics ◽  
Β2 Microglobulin

Changes in glomerular filtration rate, lithium clearance and plasma protein clearances in the early phase after unilateral nephrectomy in living healthy renal transplant donors

1988 ◽  
Vol 75 (6) ◽  
pp. 655-659 ◽  
Author(s):  
S. Strandgaard ◽  
A. Kamper ◽  
P. Skaarup ◽  
N. H. Holstein-Rathlou ◽  
P. P. Leyssac ◽  
...  
Keyword(s):  
Glomerular Filtration Rate ◽  
Glomerular Filtration ◽  
Plasma Protein ◽  
Immunoglobulin G ◽  
Filtration Rate ◽  
Early Response ◽  
Unilateral Nephrectomy ◽  
Lithium Clearance ◽  
Β2 Microglobulin ◽  
Observation Period

1. Glomerular and tubular function was studied before and 2 months after unilateral nephrectomy in 14 healthy kidney donors by measurement of the clearances of 51Cr-labelled ethylenediaminetetra-acetate, lithium, β2-microglobulin, albumin and immunoglobulin G. 2. The glomerular filtration rate (GFR) of the kidney that remained in the donor rose from 45 ± 10 (mean ± sd) to 59 ± 10 ml/min (P < 0.01) 5 days after contralateral nephrectomy and remained at this level through the observation period. 3. The lithium clearance (CLi) of the remaining kidney rose from 11.6 ± 3.7 to 20.5 ± 8.2 ml/min (P < 0.01) and remained significantly elevated throughout the observation period. 4. Absolute proximal fluid reabsorption rate (APR), which was estimated as GFR minus CLi, was unchanged 5 days after contralateral nephrectomy, but then rose gradually to reach significantly elevated levels after 4 weeks. 5. Fractional proximal reabsorption (FPR; APR/GFR) fell from 0.75 ± 0.06 to 0.66 ± 0.11 (P < 0.01) but subsequently rose to levels not significantly decreased from normal. 6. Twenty-four hour fractional clearances of β2-microglobulin, albumin and immunoglobulin G rose markedly on the day of nephrectomy, peaked at 2–3 days and subsequently fell to moderately elevated levels. 7. Both the CLj and the plasma protein clearance studies demonstrate that the early response of the remaining kidney to contralateral nephrectomy in man is an increase in GFR, an unchanged APR and a fall in FPR. The proximal tubules thus initially handle the increased filtrate load by passing it on to more distal nephron segments. Within 2–4 weeks, an adaptive increase is seen in proximal reabsorption of both protein and fluid, resulting in an almost complete normalization of glomerulotubular balance.

Exercise-induced liver β2-microglobulin expression is related to lower IgG clearance in the blood

2007 ◽  
Vol 21 (7) ◽  
pp. 946-952 ◽  
Author(s):  
Koutarou Suzuki ◽  
Park Jun Suk ◽  
Chunlan Hong ◽  
Satoru Imaizumi ◽  
Kazumi Tagami
Keyword(s):  
Β2 Microglobulin ◽  
Exercise Induced

scholarly journals Investigation into the Role of Macrophages in the Formation and Degradation of β2-Microglobulin Amyloid Fibrils

2007 ◽  
Vol 282 (40) ◽  
pp. 29691-29700 ◽  
Author(s):  
Isobel J. Morten ◽  
Walraj S. Gosal ◽  
Sheena E. Radford ◽  
Eric W. Hewitt
Keyword(s):  
Amyloid Fibrils ◽  
Β2 Microglobulin

β2-MICROGLOBULIN IN TRANSPLANTATION

1995 ◽  
Vol 60 (3) ◽  
pp. 215-220 ◽  
Author(s):  
RICHARD A. ZEFF
Keyword(s):  
Β2 Microglobulin
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