Liberação de óxido nítrico e tnf-α em macrófagos peritoneais na presença de Melampodium divaricatum (Asteraceae)

The immune responses are mediated by a variety cells and molecules that cells secreted. Macrophages are the first cells that participate in the immune response, and, when are activated, release more than hundred compounds at the extracelular medium, such as cytokine (TNF-α) and the intermediate compounds of the nitrogen (NO). In this paper the release of nitric oxide (NO) and necrose tumoral factor (TNF-α) were determined in peritoneal macrophage cultures of mice in the presence of the 70% ethanolic extract obtained from the flowers of the Melampodium divaricatum (Asteraceae) in the concentrations of 20, 10 and 5 mg/mL. The 70% ethanolic extracts from flowers of the Melampodium divaricatum presented higher liberation of NO and TNF-α in the concentration of the 20 mg/mL when compared with LPS. We conclude that this extract is a potente stimulator of macrophage, could be immunomodulatory activity.

Instrumentos económicos para la gestión ambiental en Chile: diagnóstico y propuestas para el recurso forestal, las obras de riego, el recurso suelo y la biodiversidad

Incluye Bibliografía

Occurrence of Cello-Oligosaccharides in the Apoplast of Auxin-Treated Pea Stems

Treatment of pea (Pisum sativum L.) hypocotyl segments with indole-3-butyric acid, which promotes segment elongation, increased the solubilization of both xyloglucan and cello-oligosaccharides in the apoplast of auxin-treated pea stems. The cello-oligosaccharides were isolated from the apoplastic solution with a charcoal/Celite column and were identified as cellobiose, cellotriose, and cellotetraose after subsequent thin-layer chromatography and paper electrophoresis. Cello-oligosaccharides in the apoplastic fraction were monitored using cellobiose dehydrogenase. Both xyloglucan and cello-oligosaccharides appeared to be formed concurrently within 30 min after treatment with the auxin, and the cello-oligosaccharides increased with stem elongation even after 2 h. The total activity of cellulase did not increase for up to 4 h.

Rûz-nâme : manuscript, [ca. 1845]

Calendar scroll for years 1263-1348/1846-1930 for city of Samakov, Bulgaria. Numerous tables based on various calculations. Hijri and Rumi years, with months, prayer hours, related elements.

Kitab-i Mas̲navī-i maʻnavī.

Mode of access: Internet.

Geographisch-statistisches Wörterbuch des österreichischen Kaiserstaates, oder, Alphabetische Darstellung der Provinzen, Städte, merkwürdigen Flecken, Dörfer, Schlösser ... /

Spine title: Rumis Wörterbuch des österreichischen Kaiserstaates.

Oforty /

"Polnyĭ katalog vsekh ofortov, sostavlennyĭ samim khudozhnikom. So vstupitelʹnoĭ statʹeĭ N.I. Romanova k vystavke gravi︠u︡r V.N. Masi︠u︡tina v Gravi︠u︡rnom kabinete Rumi︠a︡nt︠s︡ovskogo muzei︠a︡."

Breakdown nei gas a bassa pressione

Studio della crescita della scarica elettrica nei gas a bassa pressione con trattazioni teoriche, risultati sperimentali e rimandi ai principali studi sull'argomento. Indice: 1 Introduzione 2 Breakdown nei Gas a Bassa Pressione 2.1 Criterio di Townsend e Legge di Paschen 2.2 Tensione di Breakdown in Campi Uniformi 2.3 Scostamenti dalla Legge di Paschen 2.4 Breakdown in Campi Non Uniformi 2.5 Time Lags per il Breakdown 2.6 Breakdown nel Vuoto 2.7 Scariche Intermittenti post-Breakdown 3 Breakdown nei Contatori Geiger 3.1 Contatori Geiger 3.2 Conteggio Proporzionale 3.3 Conteggio Non-Proporzionale 3.4 Propagazione della Scarica A Sviluppi Successivi