220 research outputs found
Immunostimulants of Plant Origin
Our recent screening program with higher plants has revealed many low Mr compounds (e.g. alkaloids, quinones, terpenoids, phe- nolcarboxylic acids) and high Mr compounds (e.g. polysaccharides, glycoproteins) with a pronounced immunostimulating potential. The most promising low Mr compounds are some cytostatic compounds, which are known for their direct antitumoral activities at high doses and which exert immunostimulating effects when applied in minute doses. In the class of high Mr compounds, primarily some complex acidic arabinogalactans or rhamnogalacturonans (e.g. Echinacea purp., Achyrocline sat., Urtica dioica) show significant immunostimulating activities in vitro and in vivo
Beitrag zum Nachweise des Chloralhydrats im Thierkörper : Inaugural-Dissertation zur Erlangung des Grades eines Doctors der Medicin / verfasst und mit Bewilligung einer Hochverordneten Medicinischen Facultät der Kaiserlichen Universität zu Dorpat zur öffentlichen Vertheidigung bestimmt von Hildebert Tiesenhausen
http://tartu.ester.ee/record=b1728814~S1*es
Die deutschen Balten in Liv-, Est- und Kurland
http://www.ester.ee/record=b3787426*es
Biological activity of the aqueous extract of Lychnophora pinaster Mart
Lyophilized aqueous extract (LAE) from Lychnophora pinaster Mart (Asteraceae) aerial parts was evaluated in the search of possible biological activities. LAE exhibited trypanocidal activity (113.62 μg/mL), but could not inhibit 5-lipoxygenase in vitro (17% of inhibition). LAE chemical characterization by HPLC with UV-Diode Array Detector showed the presence of caffeic acid, isochlorogenic acid, vitexin, isovitexin and quercetin, in comparison with authentic samples
New analytical monographs on TCM herbal drugs for quality proof
Regardless of specific national drug regulations there is an international consensus that all TCM drugs must meet stipulated high quality standards focusing on authentication, identification and chemical composition. In addition, safety of all TCM drugs prescribed by physicians has to be guaranteed. During the 25 years history of the TCM hospital Bad Kötzting, 171 TCM drugs underwent an analytical quality proof including thin layer as well as high pressure liquid chromatography. As from now mass spectroscopy will also be available as analytical tool. The findings are compiled and already published in three volumes of analytical monographs. One more volume will be published shortly, and a fifth volume is in preparation. The main issues of the analytical procedure in TCM drugs like authenticity, botanical nomenclature, variability of plant species and parts as well as processing are pointed out and possible ways to overcome them are sketched
La géographie à la recherche de son unité
Isnard Hildebert. La géographie à la recherche de son unité . In: Annales de Géographie, t. 94, n°522, 1985. pp. 145-151
Une géographie de l'Afrique : Geography of Africa, Regional essays on fundamental characteristics, issues and problems, Edited by R. Mansell Prothero
Isnard Hildebert. Une géographie de l'Afrique : Geography of Africa, Regional essays on fundamental characteristics, issues and problems, Edited by R. Mansell Prothero. In: Annales de Géographie, t. 80, n°439, 1971. pp. 375-376
South Africa, de Monica M. Cole
Isnard Hildebert. South Africa, de Monica M. Cole. In: Annales de Géographie, t. 77, n°422, 1968. p. 493
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