To evaluate the biological variation of serum insulin-like growth factor binding protein-1 (IGFBP-1) in individuals with different degrees of glucose tolerance.
Variation of serum creatinine, cystatin C, and creatinine clearance tests in persons with normal renal function.
Criscione, LG, Elliott, AL, Stabler, T, Jordan, JM, Pieper, CF, and Kraus, VB. "Variation of serum hyaluronan with activity in individuals with knee osteoarthritis". Osteoarthritis and Cartilage 13, no. 9 (September 2005): 837-840.
Kong, SY, Stabler, TV, Criscione, LG, Elliott, AL, Jordan, JM, and Kraus, VB. "Diurnal variation of serum and urine biomarkers in patients with radiographic knee osteoarthritis". Arthritis and Rheumatism 54, no. 8 (August 2006): 2496-2504.
Variation of serum CRP levels reached significance with median values of 5.7 mg/L (IQR 4.0 10.0 mg/L) in the monomicrobial group compared to 8.8 mg/L (IQR 5.0 27 mg/L) in the polymicrobial group (p = 0.01).
Yet, several other scaling methods have been proposed [25], based on, for example, the modeling of pharmacokinetic parameters where the variation of serum protein binding between species is taken into account.
Circadian variations of serum cortisol and DHEAS were documented at 2-h intervals from 8 00 to 22 00 and hourly from 22 00 to 8 00 in 26 healthy Chinese men.
To characterize the variations of serum osteoprotegerin (OPG) and RANK ligand (RANKL) with sexual development in adolescent girls, and to estimate their associations with bone turnover and bone mineral density (BMD).
This profile of headache matches with the seasonal variations of serum vitamin D levels.
Four patients with eGFR > 130 mL/min according to MDRD had a maximum KDIGO score of 2. Discussion Our study confirms that variations of serum creatinine are not a good marker of GFR.
The relations between vitamin D insufficiency and human diseases, especially multiple sclerosis has been partly explained by the seasonal and geographical variations of serum vitamin D, which has further been confirmed by decreased incidence and severity of multiple sclerosis by vitamin D supplementation [3].
