Search results for "Argan"
showing 10 items of 61 documents
Biological activities of Schottenol and Spinasterol, two natural phytosterols present in argan oil and in cactus pear seed oil, on murine miroglial B…
2014
International audience; The objective of this study was to evaluate the biological activities of the major phytosterols present in argan oil (AO) and in cactus seed oil (CSO) in BV2 microglial cells. Accordingly, we first determined the sterol composition of AO and CSO, showing the presence of Schottenol and Spinasterol as major sterols in AO. While in CSO, in addition to these two sterols, we found mainly another sterol, the Sitosterol. The chemical synthesis of Schottenol and Spinasterol was performed. Our results showed that these two phytosterols, as well as sterol extracts from AO or CSO, are not toxic to microglial BV2 cells. However, treatments by these phytosterols impact the mitoch…
Preparation and characterization of extracts argania spinosa and argan oil and evaluation of their neuroprotective effects in vivo and in vitro
2016
من بين الزيوت الطبيعية أثار زيت أركان الكثير من الاهتمام. فقد استخدم زيت الأركان في الطب التقليدي، من قبل نساء البربرللعناية بالجسم و الشعر، و لمنع بعض الأمراض القلب و الأوعية الدموية . يتميز زيت الأركان بوظائفه التي تخص خفض الكوليسترول، مكافحة داء السكري ومكافحة التكاثر في خطوط الخلايا السرطانية البشرية للبروستات. يعتبر زيت اركان غنيا بالأحماض الدهنية غير المشبعة، البوليفينول، التوكوفيرول و الستيرول .هذه المواد تجعله مادة مضادة للأكسدة.يتركز دور مضادات الأكسدة الغذائية في وظيفة الجهاز العصبي وبعض الأمراض المرتبطة بالعمر على فيتامين E الذي يعتبر المكون الرئيسي لزيت أركان . الهدف من هذا العمل هو أولا دراسة كيميائية لنبتة اركان وتقييم القوة المضادة للأكسدة لمقتطفات هذه النبتة مع توصيف شامل لت…
Il Magistero palermitano (1955-1959)
2013
Il saggio ricostruisce il periodo dell'attività didattica svolta da G.C. Argan negli anni del suo primo insegnamento in una università italiana, slla base di documenti inediti, manoscritti dei corsi delle lezioni, tesi di laurea. Emerge la portata dell'alto valore didattico attribuito alla storia dell'arte.
An expeditious synthesis of spinasterol and schottenol, two phytosterols present in argan oil and in cactus pear seed oil, and evaluation of their bi…
2015
International audience; Spinasterol and schottenol, two phytosterols present in argan oil and in cactus pear seed oil, were synthesized from commercially available stigmasterol by a four steps reactions. In addition, the effects of these phytosterols on cell growth and mitochondrial activity were evaluated on 158N murine oligodendrocytes, C6 rat glioma cells, and SK-N-BE human neuronal cells with the crystal violet test and the MTT test, respectively. The effects of spinasterol and schottenol were compared with 7-ketocholesterol (71CC) and ferulic acid, which is also present in argan and cactus pear seed oil. Whatever the cells considered, dose dependent cytotoxic effects of 71CC were obser…
Evolución del manejo y tratamiento endoscopio de las estenosis laringes en los últimos 20 años
2017
Tratamiento endoscópico de las estenosis laríngeas No existe un protocolo universal para el tratamiento de la estenosis laríngea. El objetivo de este estudio es comparar la cirugía endoscópica y abierta para dar recomendaciones al tratamiento de esta estenosis. Dados los resultados obtenidos, la cirugía endoscópica puede ser el estándar oro en estenosis glótica y de bajo grado. Endoscopic treatment of laryngeal stenosis There is no universal protocol in management of laryngeal stenosis. The aim of this study is compare the endoscopic and open surgery to give recommendations to treatment of this stenosis. Given the results obtained, the endoscopic surgery can be the gold estándar in glottic …
Highlighting the divertsity of cactus populations (Opuntia spp.) in Morocco and modulation of lipid metabolism by natural extracts and phytosterols f…
2015
The objective of this PhD thesis is to characterize the Moroccan germplasm of the cactus Opuntia collected from different regions in Morocco, by studying the phenologic behavior, the genetic features and physicochemical composition, along with the molecules of high therapeutic potential which may have beneficial effects on the central nervous system cells from cactus extracts (fruit, flower, seed, oil, cladodes and spine) and compared to Argan oil. This work has been conducted in fours different laboratories sharing complementary analyses skills at agronomic, biochemistry, molecular levels. Our results are presented in three parts : (i) cactus agronomic characteristics, (ii) purification an…
The Small Sized Galericini from F32 “Terre Rosse” fissure filling (Gargano, Southeastern Italy) and its biochronological implications.
2011
Deinogalerix is by far the better known Galericinae (Galericini according toVan den Hoek Ostende, 2001) from the Gargano fissure filling thanks to very careful description of Butler 1980. However, another moon rat, very small sized, belonging to the Galericini tribe, is virtually present in all the assemblages from the “terre rosse” fissure filling of the Gargano. It was first mentioned in the pioneering report of Freudenthal (1971) and by Butler (1980) in his study of the “gigantic” Deinogaleri and it has been quoted in several faunal lists. It has been ascribed to Parasorex by Van den Hoek Ostende (2001), and to Galerix (Apulogalerix) by Fanfani (1999). Van den Hoek Ostende (2001) conside…
Stratigraphic frame work of the type locality of Pirro Nord Mammal Faunal Unit (Late Villafranchian, Apricena south-eastern Italy)
2013
The fossiliferous karst deposits of the typical Pirro Nord Faunal Unit recently revived interest for the lithic tools documenting the human occurrence in southern Italy at Early Pleistocene. Therefore, a revision of the Pliocene to lowermost Pleistocene stratigraphic succession was needed. It was carried on with a twofold aim: to detail the stratigraphic architecture and the structural-depositional evolution of the “Apricena horst”, and to verify the chronostratigraphic constraints for the Pirro Nord F.U. in the type area of Apricena. The stratigraphic record has been subdivided in four units bounded by ubiquitous unconformity surfaces, often associated to evidence of sub-aerial exposure. F…