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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 68 (1990), S. 89-93 
    ISSN: 1432-1440
    Keywords: AIDS ; AIDS-related complex ; Walter-Reed-classification ; Staging systems ; HIV-infection ; CDC-classification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The clinical value of different classification systems of HIV-infection has been examined in a cohort of 99 HIV-infected individuals. AIDS-related complex (ARC), Walter-Reed (WR) stage 5 and Centers for Disease Control (CDC) group IV without AIDS cases were equally capable of identifying patients with bad prognosis: Out of 12 patients progressing to AIDS, 9 WR 5, 7 CDC IV and 7 ARC. Prognostic parameters (Erythrocyte sedimentation rate, Haemoglobin, Leucocytes, CD4-lymphocytes and Beta2-Microglobulin) did not differ in the three groups. However, there were great differences in the frequency of patients infected by homosexual contacts and of intravenous drug-abusers. Drug-abusers were more often seen in the ARC-group, whereas there was a slight dominance of homosexuals in the WR 5-group (and a marked preponderance in the AIDS-group). Using 3 different ARC-definitions we found an ARC-frequency of 10%, 24% and 41% in our cohort. Thus the great variability of the ARC-concept could be demonstrated. In conclusion we believe that for the purpose of clinical documentation and studies the ARC-concept is unnecessary. Further studies have to evaluate other classification systems (Walter-Reed, CDC) or to establish new ones.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-2072
    Keywords: Aging ; Ipsapirone ; Serotonin (5-HT) ; 5-HT1A receptors ; Temperature ; ACTH ; Cortisol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The effects of a challenge dose of the 5-HT1A agonist, ipsapirone (0.3 mg per kg body weight), or placebo on body temperature and on adrenocorticotrophic hormone (ACTH) and cortisol release, were examined in 30 normal subjects (14 males, 19–74 years and 16 females, 22–69 years) using a randomized, double blind design. Irrespective of age or gender, ipsapirone induced a significant reduction in body temperature relative to placebo and a significant increase in ACTH and cortisol release. Maximal temperature reduction by ipsapirone was significantly blunted in older subjects and was inversely related to age. There was no gender difference in the hypothermic response to ipsapirone. ACTH and cortisol responses showed an opposite impact of aging in males and females. Whereas both responses diminished with age in male subjects, they increased with age in females. The cortisol response of older females was significantly larger than that of all the other subjects. Adverse effects of ipsapirone were also more marked in elderly females and were correlated with ACTH and cortisol responses. These findings should be taken into consideration in the use of ipsapirone and other 5-HT1A agonists as challenge procedures for studying central serotonergic function in depression and other disorders. Careful matching of control and experimental subjects is indicated so as to avoid spurious results which reflect the effects of age and gender rather than the pathophysiology of the disorders being investigated.
    Type of Medium: Electronic Resource
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