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1.
Science ; 199(4324): 83-4, 1978 Jan 06.
Article in English | MEDLINE | ID: mdl-17569491

ABSTRACT

Gas chromatography with electron capture detection was used to quantitate melatonin in single human pineal glands. The sensitivity of this melatonin assay is in the low picogram range. A 24-hour rhythm of pineal melatonin content was observed.


Subject(s)
Melatonin/analysis , Pineal Gland/chemistry , Adult , Aged , Aged, 80 and over , Chromatography, Gas , Female , Gas Chromatography-Mass Spectrometry , Humans , Male , Melatonin/analogs & derivatives , Middle Aged
3.
Clin Chim Acta ; 61(3): 335-40, 1975 Jun 20.
Article in English | MEDLINE | ID: mdl-1149259

ABSTRACT

The distribution of calcium, copper, magnesium and zinc in five anatomical regions of both hemispheres of the human brain were investigated. No asymmetry was observed with the exception of the distribution of copper in the white matter. The concentrations of these elements in the substantia nigra from both sides of the midbrain were also measured.


Subject(s)
Brain Chemistry , Calcium/analysis , Copper/analysis , Magnesium/analysis , Zinc/analysis , Autopsy , Caudate Nucleus/analysis , Cerebral Cortex/analysis , Corpus Striatum/analysis , Humans , Substantia Nigra/analysis , Thalamus/analysis
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