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Biomedical subjects

J Bert

Publications and source records attributed to J Bert.

83 records · Page 5Linked to original sources
PubMedDate not supplied

[Changes in sleep pattern in presenile and senile dementia (author's transl)].

Analysis of polygraphic recordings of nocturnal sleep in 21 patients with "degenerative" dementia led to the identification of two types of tracing. The first type was characterised by morphologically normal sleep with more marked quantitative changes than those caused by simple aging. In the second type, the criteria of identification of the physiological stages of sleep disappeared, requiring special definition of the E.E.G. appearances seen. These two types corresponded to two different stages of advancement and probably were indicative of the progressive extension of lesions.

Aged↗
PubMedDate not supplied

Sources of dioxins and furans in British Columbia.

A recent Canadian study of the levels of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in adipose tissue suggested higher levels in British Columbians than in other Canadians. This led to concerns about the sources of these compounds in B.C. In this paper, we review scientific publications to generate a list of possible sources of PCDDs and PCDFs. We outline which of these are likely to be found in British Columbia, and develop hypotheses concerning their potential contribution to an individual's "PCDD/PCDF load". Further sampling and analysis of British Columbians' adipose tissue could test hypotheses about occupational and environmental exposures to dioxins and furans.

British Columbia↗
PubMedDate not supplied

[Acromegaly and sleep apnea syndrome (author's transl)].

Acromegaly associated with a Sleep Apnea Syndrome has but exceptionally been reported. Polygraphic recordings of sleep have been carried out in parallel with the determination of pituitary hormonal secretions, during the nycthemeral period before and after surgical treatment of the adenoma. There appears a Sleep Apnea Syndrome of the predominant obstructive type; the Apnea index is: 57 (N less than or equal to 4); the hypnogram is considerably jagged, with more than a thousand wakings and changes in the sleep stages, due to a great number of apneas. The deep slow sleep never occurs: no stages 3 and 4. The physiological peak of G.H. secreted in the beginning of the deep slow sleep thus does not appear in the Sleep Apnea Syndrome. The existence of a "false negative" criteria of a cured Acromegaly must be taken into consideration. The Sleep Apnea Syndrome must be differentiated from Narcolepsy and the usual Pickwickian syndrome. The Sleep Apnea Syndrome and Acromegaly seem to be two separate diseases, each one evolving independently. The cure of Acromegaly has not led to the cure of the Sleep Apnea Syndrome and the latter has not prevented the clinical and biological cure of Acromegaly. This may be an argument in favor of the independence of Acromegaly towards some hypothalamic structures.

Acromegaly↗