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B Noll

Publications and source records attributed to B Noll.

42 records · Page 3Linked to original sources

Chondrodysplasia punctata. Report of parent-to-child transmission.

A family with chondrodysplasia punctata of the Conradi-Hünermann type is presented. The diagnosis was not made on the affected child who died after orthopaedic surgery for the complications of the condition. The mother had undoubted stigmata of the disease, and a previous child, who died shortly after birth, might also have had the condition. Sound genetic counselling could only be offered after accurate diagnosis was made.

Adult↗

Lead concentrations in semen of healthy men without occupational exposure to lead.

Lead analyses were performed by atomic absorption spectrometry of semen and blood specimens from 21 medical students and technicians (ages 19 to 41 years) who had no occupational or avocational exposure to lead (Pb). Seminal Pb concentrations averaged 5.9 (S.D. +/- 2.7) microgram per dl (range = 1.0 to 11), and blood Pb concentrations averaged 13.1 (S.D. +/- 3.5) microgram per dl (range = 7.0 to 19). Sperm counts averaged 54 X 10(6) (S.D. +/- 29 X 10(6)) sperm per ml (range = 13 X 10(6) to 120 X 10(6)). Seminal protein concentrations averaged 2.9 (S.D. +/- 0.5) g per dl (range = 2.0 to 4.0). No significant correlations were found between seminal Pb concentrations and blood Pb concentrations or between seminal Pb concentrations and sperm counts. In each subject, the concentration of seminal Pb was less than or equal to the concentration of blood Pb. These measurements are the first published data on seminal Pb concentrations in healthy men, and they serve as reference values for measurements of Pb in semen from Pb-poisoned men.

Adult↗