Search results for "notis"
showing 10 items of 15 documents
Cytotoxicity of South-African medicinal plants towards sensitive and multidrug-resistant cancer cells
2016
Abstract Ethnopharmacological relevance Traditional medicine plays a major role for primary health care worldwide. Cancer belongs to the leading disease burden in industrialized and developing countries. Successful cancer therapy is hampered by the development of resistance towards established anticancer drugs. Aim In the present study, we investigated the cytotoxicity of 29 extracts from 26 medicinal plants of South-Africa against leukemia cell lines, most of which are used traditionally to treat cancer and related symptoms. Material and methods We have investigated the plant extracts for their cytotoxic activity towards drug-sensitive parental CCRF-CEM leukemia cells and their multidrug-r…
Latvijas ūdeņu vides pētījumi un aizsardzība: LU Bioloģijas fakultātes Hidrobioloģijas katedras sekcijas referātu tēžu krājums (Rīga, 2012. gada 24. …
2012
Krājumā ievietotās LU 70.konferences LU Bioloģijas fakultātes Hidrobioloģijas katedras sekcijas referātu tēzes nav recenzētas.
Antiproliferative activity of hexane extract from Tunisian Cistus libanotis, Cistus monspeliensis and Cistus villosus
2013
Abstract Background As a part of our investigation on Tunisian medicinal plants, we have carried out a phytochemical investigation of the hexane extracts from leaves of Cistus libanotis, C. villosus and C. monspeliensis, evualuating also their possible antiproliferative activity in vitro. Results The major compounds of hexane extracts were identified and quantified by GC-MS. The composition of the three species, although belonging to the same genus, is completely different. The antiproliferative activity was evaluated against murine monocyte/macrophages (J774.A1), human melanoma cells (A-375), and human breast cancer cells (MCF-7), showing major activity against the human melanoma cell line…
Augļa ārējais apgrozījums – efektivitāte un tās ietekmējošie faktori, dzemdību iznākums un komplikācijas
2022
Ievads. Augļa iegurņa guļa ir otra biežākā augļa guļa. Vaginālu dzemdību gadījumā tā tiek saistīta ar biežāku komplikāciju attīstību. Šī iemesla dēļ ir palielinājusies plānveida Ķeizargrieziena izmantošana grūtniecības atrisināšanai līdz pat 85.1%. Tomēr tas nekorelē ar dzemdību iznākumiem. Augļa ārējais apgrozījums (AAA) ir manipulācija, kas tiek rekomendēta visām sievietēm ar vienaugļa grūtniecību, kur auglis atrodas iegurņa priekšguļā sākot no 36.grūtniecības nedēļas, ja nepastāv kontrindikācijas. Tā ir atzīta par drošu un efektīvu metodi ar vidējo veiksmīgo apgrozījuma rādītāju – 58%, kas paaugstina vaginālu dzemdību ar augļa galviņas priekšguļu incidenci. Darba mērķis. Noskaidrot AAA e…
Chemistry and functional properties in prevention of neurodegenerative disorders of five Cistus species essential oils.
2013
The chemical composition of Cistus creticus, Cistus salvifolius, Cistus libanotis, Cistus monspeliensis and Cistus villosus essential oils has been examined by GC and GC–MS analysis. Height-nine constituents were identified in C. salvifolius oil, sixty in C. creticus, fifty-six in C. libanotis, fifty-four in C. villosus, forty-five in C. monspeliensis. Although the five species belong to the same genus, the composition showed interesting differences. Essential oils were screened also for their potential antioxidant effects (by DPPH, ABTS, FRAP and b-carotene bleaching test) and their acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activity, useful for prevention and …
Phytochemical study of Cistus libanotis L.
2015
n continuation of our ongoing study on Mediterranean Flora, we focused the attention on Cistus genus. These plants possess interesting secondary metabolites and are used in many fields, principally in perfumery and more recently as raw material for food supplements (botanicals). n this article, we report the phytochemical analysis of Cistus libanotis L. from Tunisia. Among the diterpenes, labdane compounds resulted absent, in favour of two clerodanes, one of that never reported in Cistus sp. The main representative compounds were found to be several flavonoids with various grades of O-methylation. Other interesting components were two cinnamic esters of borneol, reported here for the first …
Suitability of a native South African shrub as pot plant
2006
Leonotis leonurus (L.) Br. Pubesc., also known as “lion’s ear” is a perennial shrub belonging to the Labiatae family and native to South Africa. The name of the genus derives from the Greek words leon (lion) and otòs (ear). The esthetic ornamental value of its bright orange inflorescence and its adaptation to a wide range of conditions have led a research to evaluate the suitability of L. leonurus as pot plant. Pot plants from one year rooted cuttings were grown in the Northern coast of Sicily; at the end of December, plants were pruned to 30 cm length and then moved to an unheated plastic greenhouse. Flowering started in April under protected cultivation and continued throughout the summer…
Activity against microorganisms affecting cellulosic objects of volatile constituents of Leonotis nepetaefolia from Nicaragua
2014
The chemical composition of the essential oil from aerial parts of L. nepetaefolia (L.) R. Br. collected in Nicaragua was evaluated by GC and GC-MS. The main components were (Z)-phytol (22.8%), caryophyllene oxide (18.9%) and hexahydrofarnesylacetone (9.0%). The antibacterial activity against several Gram + and Gram-bacteria, including Bacillus cereus and B. subtilis, both infesting historical cellulosic material, was also determined. B. cereus, B. subtilis and Staphylococcus epidermis were the most affected by the action of the oil.
Activity against Microorganisms Affecting Cellulosic Objects of the Volatile Constituents of Leonotis nepetaefolia from Nicaragua
2014
The chemical composition of the essential oil from aerial parts of L. nepetaefolia (L.) R. Br. collected in Nicaragua was evaluated by GC and GC-MS. The main components were ( Z)-phytol (22.8%), caryophyllene oxide (18.9%) and hexahydrofarnesylacetone (9.0%). The antibacterial activity against several Gram + and Gram - bacteria, including Bacillus cereus and B. subtilis, both infesting historical cellulosic material, was also determined. B. cereus, B. subtilis and Staphylococcus epidermis were the most affected by the action of the oil.
Marģera Zariņa kora skaņdarbu nošu bibliogrāfiskās datubāzes izstrāde
2019
Marģeris Zariņš ir daudzu spilgtu kora skaņdarbu autors, taču pagaidām vēl nav apkopota informācija par viņa kompozīcijām korim un to notīm. Pētījuma mērķis ir lietotājiem draudzīgas kora skaņdarbu nošu bibliogrāfiskās datubāzes entītiju-relāciju modeļa izveide. Kā pētījuma teorētiskais pamatojums izmantotas pragmatisma teorijas atziņas un Mijiedarbības trīs komponentu modelis. Lai sasniegtu pētījuma mērķus, veikta sešu elektroniskās informācijas sistēmu kontentanalīze un aptaujāti potenciālie datubāzes lietotāji – kordiriģenti. Pētījuma rezultātā apkopota informācija Marģera Zariņa kora skaņdarbu notīm vairāku atmiņas institūciju krājumā un izveidots Marģera Zariņa kora skaņdarbu nošu bibl…