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K. C. Chaudhuri 《Indian journal of pediatrics》1958,25(5):265-265
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The hypothalamic-pituitary axis (HPA) may be involved early in multiple system atrophy (MSA), whereas in idiopathic Parkinson's
disease (IPD) its impairment seems to be correlated with motor disability. The release of prolactin (PRL) is mediated through
the HPA and an increase in PRL levels is documented during stress. In this study, we investigated basal and erect PRL levels
to assess whether basal PRL or changes in PRL levels after 60° head-up tilt (HUT; orthostatic stress) could distinguish between
MSA and IPD patients.
We studied five patients with MSA on levodopa treatment, five levodopa-naive MSA patients, nine IPD patients on dopaminergic
treatment, six drug-naive IPD patients and six normal individuals. PRL levels were measured in the supine position after 30
minutes rest and during 60° HUT after 5 and 15 minutes.
Baseline PRL values were significantly lower for patients with IPD than for those with MSA, both for levodopa-treated and
naive patients (p < 0.004, estimated decrease 55.1 %, 95 % CI from 29.4 % to 71.52 %). After orthostatic stress PRL levels were increased in
healthy individuals after 15 minutes of HUT (p = 0.044, estimated increase 11.5 %, 95 % CI from 0.4 % to 23.8 %), whereas there was no evidence for a change of PRL levels
in patients with MSA or IPD after 5 and 15 minutes of HUT. We also did not find any evidence for a difference in PRL change
after HUT between MSA and IPD patients.
Baseline PRL levels might differentiate between early MSA and IPD, being higher in MSA. However, orthostatic stress using
HUT appears unable to differentiate between MSA and IPD.
Received: 25 July 2001, Accepted: 14 March 2002
Correspondence to Dr. K Ray Chaudhuri 相似文献
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Chaudhuri JD 《Journal of the Indian Medical Association》2002,100(2):107-8, 110
Foetal alcohol syndrome (FAS) is a collection of signs and symptoms seen in children of women who consume alcohol during pregnancy. With the increasing incidence of FAS, there is a great variation of its clinical features different from that described in the standard textbooks. This article aims to report on the unusual clinical features of FAS. It also aims to explain the mechanism of action of alcohol as a teratogenic agent. 相似文献