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Ocular motility, visual acuity and dysfunction of neuropsychological impairment in children with shunted uncomplicated hydrocephalus (1985)

Zeiner, Harriet K. ; Prigatano, George P. ; Pollay, Michael ; [et al.]

Springer

Child's nervous system 1 (1985), S. 115-122

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ISSN: 1433-0350

Keywords: Hydrocephalus ; Neuropsychological functioning ; Visual acuity ; Ocular motility ; Cognitive impairment

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Abstract Children with shunted, uncomplicated, communicating hydrocephalus were tested to determine (1) the persistence of neuropsychological impairment and (2) the relationship between neuropsychological functioning, ocular motility, and acuity abnormalities. Eighteen hydrocephalic and 18 individually age- and sex-matched controls were given a neuropsychological battery, repeated after an interval of 1 year. Hydrocephalic children were also tested at the beginning of the second year for strabismus, amblyopia and visual acuity. Their medical records were reviewed for history of ocular motility and/or acuity abnormalities. Hydrocephalic children with normal range IQ were found to have lower verbal IQ, memory, and fine motor skills compared to controls. A history of ocular motility and acuity abnormalities was associated with impaired visuospatial and verbal problem-solving skills.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00706692

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Capillary zone electrophoresis-mass spectrometry with electrospray ionization of peptides and proteins (1989)

Loo, Joseph A. ; Jones, Harlan K. ; Udseth, Harold R. ; [et al.]

New York, NY [u.a.] : Wiley-Blackwell

Journal of Microcolumn Separations 1 (1989), S. 223-229

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ISSN: 1040-7685

Keywords: CZE-MS ; electrospray ionization ; peptides ; proteins ; Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Capillary zone electrophoresis (CZE) coupled with an on-line mass spectrometric (MS) detection system by an atmospheric pressure electrospray ionization (ESI) interface has been used successfully for Separations of peptide and protein mixtures. For CZE-MS, ESI produces multiply charged molecular ions and thus allows mas spectrometers with a limited mass-to-charge range to analyze proteins having molecular weights greater than 100,000. Various pH buffer systems have been investigated, including buffer systems in which pH 〉 pI (isoelectric point of analytes) and pH « pI are designed to reduce protein adsorption onto silica capillary surfaces and thus improve separation efficiencies. More than 125,000 theoretical plates have been obtained from a CZE-MS separation of less than 1 pmol per component of leucine enkephalin and horse heart myoglobin. CZE-MS of other large peptides and proteins are demonstrated.

Additional Material: 8 Ill.