Lege Artis Medicinae

[Omission of Providing Information about a Teratogenic Adverse Drug Reaction]

BÁRD Petra, PONGRÁCZ Krisztina

JULY 27, 2009

Lege Artis Medicinae - 2009;19(06-07)

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[Melatonin, sleep and the circadian rhythm: theoretical considerations and their chronopharmacological applications ]

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[The predictive homeostasis of living organisms is an anticipatory adaptation to rhythmical environmental changes. A good example for this is the circadian rhythm preparing the organism for the alternation of day and night. The circadian rhythm of melatonin production anticipates the timing and duration of nocturnal sleep of human subjects. It also induces a sleep-like stimulusprocessing mode of the brain and - in case of adequate environmental circumstances - a soporific and in part, a sleep-inducing effect. Specificities of melatonin effects on sleep are the reduction of slow-wave EEG activity, as well as the increase in seep EEG spindling and REM sleep time. Like other substances with hypnotic properties, melatonin decreases core body temperature, but has also a strong chronobiotic effect that is expressed as rapid and strong phase shifts of the circadian rhythm, depending on the time of day of melatonin administration. Because light acutely suppresses melatonin production, adequately timed light exposition, containing also low wavelength components, together with exogenous melatonin, could be useful in treating jet-lag syndrome and other circadian rhythm disorders.]

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[Original and generic drugs: Research, efficacy, utilization, and financing ]

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[Starting from the definition of medicinal drugs, this paper covers the terms of original, active principles, original and generic drugs, and their distinctive and identical properties. It also surveys the fundamentals of drug-marketing authorization, criteria of therapeutic and bioequivalence, pharmaceutical and pharmacokinetic equivalence, and development possibilities of generic drugs.]

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[In this paper we present the Comprehensive Aphasia Test-Hungarian (CAT-H; Zakariás and Lukács, in preparation), an assessment tool newly adapted to Hungarian, currently under standardisation. The test is suitable for the assessment of an acquired language disorder, post-stroke aphasia. The aims of this paper are to present 1) the main characteristics of the test, its areas of application, and the process of the Hungarian adaptation and standardisation, 2) the first results from a sample of Hungarian people with aphasia and healthy controls. Ninety-nine people with aphasia, mostly with unilateral, left hemisphere stroke, and 19 neurologically intact control participants were administered the CAT-H. In addition, we developed a questionnaire assessing demographic and clinical information. The CAT-H consists of two parts, a Cognitive Screening Test and a Language Test. People with aphasia performed significantly worse than the control group in all language and almost all cognitive subtests of the CAT-H. Consistent with our expectations, the control group performed close to ceiling in all subtests, whereas people with aphasia exhibited great individual variability both in the language and the cognitive subtests. In addition, we found that age, time post-onset, and type of stroke were associated with cognitive and linguistic abilities measured by the CAT-H. Our results and our experiences clearly show that the CAT-H provides a comprehensive profile of a person’s impaired and intact language abilities and can be used to monitor language recovery as well as to screen for basic cognitive deficits in aphasia. We hope that the CAT-H will be a unique resource for rehabilitation professionals and aphasia researchers in aphasia assessment and diagnostics in Hungary. ]

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