Essential oil production by Anthemis nobilis L. tissue culture.
Fauconnier, Marie-Laure ; ; et al
in Journal of Plant Physiology (1993), 141(6), 759-761
The production of essential oil by tissue culture s ol Antbemis nobilis L. including cell suspension, shoot and crown-gall cultures is reported. The biosynthetic capability of these different cultures was ... [more ▼]
The production of essential oil by tissue culture s ol Antbemis nobilis L. including cell suspension, shoot and crown-gall cultures is reported. The biosynthetic capability of these different cultures was compared with that of plants grown in a field. The addition of crude polysaccharide fraction prepared from yeast extract and from the plant itself to shoot cultures affected the composition and total essential content (from 0.08 o/o to 0.3Qo/o dry weight). The essential oil content of the crown-gall tissue ol A. nobilis was 0.25 % of the dry weight and the composition of the essential oil was comparable to that of the flowers. [less ▲]Detailed reference viewed: 186 (4 ULg)
The Essential Oils of Origanum majorana L. and Origanum floribundum Munby in Algeria
; ; Wathelet, Jean-Paul et al
in Journal of Essential Oil-Bearing Plants [=JEOBP] (2012), 15(3), 497-502
The constituents of essential oils isolated by hydrodistillation of the overground parts of Origanum majorana and Origanum floribundum from Algeria were examined by GC and GC-MS. A total of thirty eight ... [more ▼]
The constituents of essential oils isolated by hydrodistillation of the overground parts of Origanum majorana and Origanum floribundum from Algeria were examined by GC and GC-MS. A total of thirty eight and thirty seven components were identified accounting for 93.3 % and 88.9 %, respectively, of the oils of O. majorana and O. floribundum. The oil of O. majorana (yield: 1.2 %) contained, as main components, β-caryophyllene (26.0 %), α-terpinolene (14.7 %), γ-terpinene (10.9 %) and sabinene (9.5 %). Major compounds in the volatile oil of O. floribundum (yield: 1.6 %) were γ-terpinene (34.1 %), p-cymene(27.6 %) and carvacrol (9.6 %). [less ▲]Detailed reference viewed: 155 (2 ULg)
An essential role for gamma-herpesvirus latency-associated nuclear antigen homolog in an acute lymphoproliferative disease of cattle.
; Sorel, Océane ; et al
in Proceedings of the National Academy of Sciences of the United States of America (2013)
Wildebeests carry asymptomatically alcelaphine herpesvirus 1 (AlHV-1), a gamma-herpesvirus inducing malignant catarrhal fever (MCF) to several ruminant species (including cattle). This acute and lethal ... [more ▼]
Wildebeests carry asymptomatically alcelaphine herpesvirus 1 (AlHV-1), a gamma-herpesvirus inducing malignant catarrhal fever (MCF) to several ruminant species (including cattle). This acute and lethal lymphoproliferative disease occurs after a prolonged asymptomatic incubation period after transmission. Our recent findings with the rabbit model indicated that AlHV-1 infection is not productive during MCF. Here, we investigated whether latency establishment could explain this apparent absence of productive infection and sought to determine its role in MCF pathogenesis. First, whole-genome cellular and viral gene expression analyses were performed in lymph nodes of MCF-developing calves. Whereas a severe disruption in cellular genes was observed, only 10% of the entire AlHV-1 genome was expressed, contrasting with the 45% observed during productive infection in vitro. In vivo, the expressed viral genes included the latency-associated nuclear antigen homolog ORF73 but none of the regions known to be essential for productive infection. Next, genomic conformation analyses revealed that AlHV-1 was essentially episomal, further suggesting that MCF might be the consequence of a latent infection rather than abortive lytic infection. This hypothesis was further supported by the high frequencies of infected CD8+ T cells during MCF using immunodetection of ORF73 protein and single-cell RT-PCR approaches. Finally, the role of latency-associated ORF73 was addressed. A lack of ORF73 did not impair initial virus replication in vivo, but it rendered AlHV-1 unable to induce MCF and persist in vivo and conferred protection against a lethal challenge with a WT virus. Together, these findings suggest that a latent infection is essential for MCF induction. [less ▲]Detailed reference viewed: 48 (28 ULg)
Essential role of sirtuins in the pathogenesis of allergic airway inflammation
Legutko, Agnieszka ; Marichal, Thomas ; Fievez, Laurence et al
in Short book of the Annual Congress of the European Respiratory Society (ERS), Vienne (2009)Detailed reference viewed: 30 (6 ULg)
Essential role of sirtuins in the pathogenesis of allergic airway inflammation
Legutko, Agnieszka ; Bureau, Fabrice
Poster (2009)Detailed reference viewed: 30 (2 ULg)
The essential role of the thymus for a pacific coevolution of the immune and neuroendocrine systems
Conference (2008, April)Detailed reference viewed: 11 (3 ULg)
Essential roles of zebrafish bmp2a, fgf10 and fgf24 in the specification of the ventral pancreas
Naye, François ; Voz, Marianne ; Detry, Nathalie et al
in Molecular Biology of the Cell (2012)Detailed reference viewed: 42 (9 ULg)
L'essor de l'industrie belge du zinc : l'implantation conflictuelle d'une industrie neuve. Le cas de l'usine de Saint-Léonard à Liège (1809-1880)
Conference (2011, June 23)Detailed reference viewed: 16 (6 ULg)
L'essor de l'industrie belge du zinc et la prise en compte de l'environnement
in Parmentier, Isabelle (Ed.) La recherche en histoire de l'environnement : Belgique, Luxembourg, Congo, Rwanda, Burundi, Actes PREBel, Namur, décembre 2008 (2010)Detailed reference viewed: 52 (14 ULg)
L'essor des métiers du conseil : dynamiques et tensions
; Orianne, Jean-François
in SociologieS (2010)Detailed reference viewed: 42 (10 ULg)
L'essor du pôle liégeois du zinc et le débat public sur l'insalubrité. Le cas de l'usine de Saint-Léonard à Liège (1809-1880) / Réflexion sur la dimension contemporaine du conflit ville-industrie dans le cadre de la réhabilitation des sites industriels désaffectés
Scientific conference (2009, June 23)Detailed reference viewed: 20 (3 ULg)
Est-ce ainsi que les jeunes Belges lisent? Résultat d'une enquête internationale
Lafontaine, Dominique ; Lafontaine, Annette
in Enjeux : Revue de Formation Continuée et de Didactique du Français (1994), 31(7), 31Detailed reference viewed: 27 (1 ULg)
Est-ce qu'il est possible d'obtenir le résultat véritable d'un élève même si celui-ci tente de tricher ?
; ; Magis, David
Conference (2007, October)Detailed reference viewed: 3 (0 ULg)
Est-ce si difficile d'apprendre une langue étrangère est ?!?
Conference given outside the academic context (2001)Detailed reference viewed: 15 (0 ULg)
Est-il déraisonnable de ne pas accorder une pension de survie au compagnon du travailleur décédé ?
Michiels, Olivier ;
in Revue Trimestrielle de Droit Familial (2002), (1), 161-166
L'article envisage la question de savoir si le compagnon qui formait un ménage avec un travailleur décédé est en droit de pouvoir revendiquer une pension de survie.Detailed reference viewed: 59 (9 ULg)
Est-il important de prévenir le vieillissement cognitif normal ou pathologique par le maintien d'activités?
Scientific conference (2011, January 29)Detailed reference viewed: 17 (0 ULg)
est-il possible d’intégrer la fragilité gériatrique dans le risque chirurgical ?
in Revue Médicale de Liège (2008), 63(12), 722-728
Frailty in the elderly is an important factor of morbidity, particularly in the setting of surgery. The various pathologies that can lead to a functional decline are well known. The risk of mortality and ... [more ▼]
Frailty in the elderly is an important factor of morbidity, particularly in the setting of surgery. The various pathologies that can lead to a functional decline are well known. The risk of mortality and morbidity should be assessed as a function of the nature of the surgical procedure and of the disease for which it is required; the factors of severity, the predictable duration of the procedure, and the expected blood losses must also be taken into account. The thrombo-embolic risk should finally be considered. In the elderly, one may say that the functional risk matters more than the vital risk. Frailty must be integrated into the risk assessment; however, further studies are needed to better determine the impact of that new concept. Undoubtedly, the cognitive and nutritional status are of main importance. A better knowledge of the risks should lead to validate specific interventions that could help to prevent surgical complications, shorten the length of hospital stay, and protect the self-sufficiency of the aged. [less ▲]Detailed reference viewed: 86 (2 ULg)