			Home About us Contact

S100B Levels (s100b + level)

Distribution by Scientific Domains

Medical Sciences	75%

Selected Abstracts

Serum S100B in elderly patients with and without delirium

INTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY, Issue 3 2010
Barbara C. van Munster
Abstract Objective Elevation of S100B has been shown after various neurologic diseases with cognitive dysfunction. The aim of this study was to compare the serum level of S100B of patients with and without delirium and investigate the possible associations with different subtypes of delirium. Methods Acutely admitted medical patients aged 65 years or more were included from 2005 through 2008. Delirium was diagnosed by Confusion Assessment Method, delirium subtype by Delirium Symptom Interview and preexistent global cognitive function by the ,Informant Questionnaire on Cognitive Decline-short form'. S100B levels were determined in serum by electrochemiluminescence immunoassay. Results Samples of 412 patients were included, 91 during delirium, 35 after delirium and 286 of patients without delirium. Patients with delirium (31%) were significantly older, 81.5 versus 76.6 years (p,<,0.001) and experienced significantly more often preexistent cognitive and functional impairment (p,<,0.001). S100B level differed significantly (p,=,0.004) between the three groups: median 0.07,,g/L (inter-quartile ranges: 0.05,0.14,,g/L) during delirium, 0.12,,g/L (0.05,0.29,,g/L) after delirium and 0.06,,g/L (0.03,0.10,,g/L) in patients without delirium. Combining the impact of cognitive impairment, infection and age on S100B, highest S100B was observed in the oldest patients after delirium with preexistent cognitive impaired and infection. Delirium subtype and S100B level were not significantly correlated. Conclusion Higher S100B levels were found in patients with delirium than in patients without delirium, with highest levels of S100B in samples taken after delirium. Future studies are needed to elucidate the mechanism responsible for the increase of S100B and the possible association with long term cognitive impairment. Copyright © 2009 John Wiley & Sons, Ltd. [source]

S100B Protein concentration in milk-formulas for preterm and term infants Correlation with industrial preparation procedures

MOLECULAR NUTRITION & FOOD RESEARCH (FORMERLY NAHRUNG/FOOD), Issue 5 2008
Francesco Nigro
Abstract Human milk S100B protein possesses important neurotrophic properties. However, in some conditions human milk is substituted by milk formulas. The aims of the present study were: to assess S100B concentrations in milk formulas, to verify any differences in S100B levels between preterm and term infant formulas and to evaluate the impact of industrial preparation at predetermined phases on S100B content. Two different set of samples were tested: (i) commercial preterm (n = 36) and term (n = 36) infant milk formulas; ii) milk preterm (n = 10) and term infant (n = 10) formulas sampled at the following predetermined industrial preparation time points: skimmed cow milk (Time 0); after protein sources supplementation (Time 1); after pasteurization (Time 2); after spray-drying (Time 3). Our results showed that S100B concentration in preterm formulas were higher than in term ones (p < 0.01). In addition, S100B concentrations during industrial preparation showed a significant increase (p < 0.001) at Time 1 followed by a slight decrease (p > 0.05) at Time 2, whereas a significant (p < 0.001) dip was observed at Time 3. In conclusion, S100B showed a sufficient thermostability to resist pasteurization but not spry-drying. New feeding strategies in preterm and term infants are therefore warranted in order to preserve S100B protein during industrial preparation. [source]

Outcome prediction in traumatic brain injury: comparison of neurological status, CT findings, and blood levels of S100B and GFAP

ACTA NEUROLOGICA SCANDINAVICA, Issue 3 2010
M. Wiesmann
Wiesmann M, Steinmeier E, Magerkurth O, Linn J, Gottmann D, Missler U. Outcome prediction in traumatic brain injury: comparison of neurological status, CT findings, and blood levels of S100B and GFAP. Acta Neurol Scand: 2010: 121: 178,185. © 2009 The Authors Journal compilation © 2009 Blackwell Munksgaard. Objective,,, To investigate the predictive value of early serum levels of S100B and glial fibrillary acidic protein (GFAP) in traumatic brain injury. Methods,,, Sixty patients admitted within 24 h of trauma were included. Neurological status on admission (Glasgow Coma Scale), initial cranial computed tomography (CCT) studies (Marshall Computed Tomographic Classification), and outcome after 6 months (Glasgow Outcome Scale) were evaluated. S100B and GFAP levels were determined on admission and 24 h after trauma. Results,,, Blood levels of S100B and GFAP were elevated following head trauma and quantitatively reflected the severity of trauma. S100B levels after 24 h and on admission were of higher predictive value than CCT findings or clinical examination. GFAP, but not S100B levels rapidly declined after trauma. Conclusions,,, Blood levels of S100B and GFAP indicate the severity of brain damage and are correlated with neurological prognosis after trauma. Both methods can yield additional prognostic information if combined with clinical and CCT findings. [source]