Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
Peer Reviewed
See detailO157:H7 and O104:H4 Vero/Shiga toxin-producing Escherichia coli outbreaks: respective role of cattle and humans
Piérard, D; De Greve, H; Haesebrouck, F et al

in Veterinary Research (2012), 43

Detailed reference viewed: 31 (8 ULg)
Full Text
See detailO2/Ar and CH4 measurements in sea ice : clues for the key status of sea ice in the climate system
Zhou, Jiayun; Tison, Jean-Louis; Eicken, Hajo et al

in Geophysical Research Abstracts (2011, April 08), 13

Detailed reference viewed: 23 (7 ULg)
Full Text
See detailO2: Dr Jekyll and Mr Hyde in symbiotic dinoflagellates (Symbiodinium) from reef-building corals
Roberty, Stéphane ULg

Doctoral thesis (2013)

Coral reefs are among the most beautiful and complex of all ecosystems on Earth. Although they cover less than 1% of the world’s oceans area, this marine ecosystem harbors a huge biodiversity and is vital ... [more ▼]

Coral reefs are among the most beautiful and complex of all ecosystems on Earth. Although they cover less than 1% of the world’s oceans area, this marine ecosystem harbors a huge biodiversity and is vital to human society and industries. The foundation of coral reefs relies on the fragile mutualistic relationship between reef-building corals and their photosynthetic dinoflagellates of the genus Symbiodinium. However, this symbiosis is highly sensitive to environmental or anthropogenic disturbances and may be disrupted, thus leading to the coral bleaching phenomenon. It has been reported that the initial steps of this process are linked to photosynthesis and the antioxidant network in Symbiodinium. However the nature of the cellular mechanisms leading to the generation of reactive oxygen species and to the disruption of the symbiosis is not completely unraveled. Therefore, this study aimed to highlight the existence of photosynthetic alternative electron flows reducing molecular oxygen and the way by which they can induces an oxidative stress, in four Symbiodinium strains belonging to three different clades. Joint measurements of oxygen evolution, PSI and PSII activities by chlorophyll a fluorescence and spectrophotometric measurements allowed us to demonstrate that photoreduction of oxygen by the so-called Mehler reaction is the main electron sink at the onset of photosynthesis and during steady state photosynthesis. When Symbiodinium cells were exposed to high light conditions, the Mehler reaction and the ascorbate-glutathione cycle (water-water cycle) acted as a safety valve and drained up to 50% of the electrons from PSII, protecting it from photoinhibition and dissipating rapidly the excess photon energy by downregulation of PSII. As long as the WWC efficiency was maintained in the chloroplasts of Symbiodinium, ROS generated as a by-product of the Mehler reaction did not significantly damage target molecules and induced an acclimatory response through up-regulation of enzymes involved in the antioxidant response (superoxide dismutase, ascorbate peroxidase, glutathione reductase). Nevertheless, when cells were exposed to light stress and elevated temperature (33°C), the WWC supported 75% of the electrons coming from PSII. This increase generated twice more H2O2 than during the treatment at 26°C and resulted in the inactivation of target enzymes of the WWC. Therefore, this means that under these conditions the photoprotective functions of the WWC can no longer be maintained, thus opening the way to ROS accumulation and to the induction of coral bleaching.We found that the response to oxidative stress differed between and within Symbiodinium clades. Symbiodinium clade A was less sensitive to the chemical induced oxidative stress than the others investigated strains. These variations are most likely related to their geographic origin, their thermal history, as well as to their physiological adaptations to the local environment. They may contribute to the explanation of why coral colonies and coral species have been found to differ in their susceptibilities to bleach. However, although the antioxidant response differs to some extent, some common traits were conserved. Among them, Diatoxanthin, a xanthophyll pigment involved in the non-photochemical quenching process could also have an antioxidant function. In addition, it seems that the ubiquitin-proteasome pathway is involved in the antioxidant response by eliminating carbonylated protein. [less ▲]

Detailed reference viewed: 69 (10 ULg)
Full Text
See detailOA à l’Université de Liège : le pari d’ORBi
Rentier, Bernard ULg; Thirion, Paul ULg

Scientific conference (2012, October 23)

Detailed reference viewed: 371 (68 ULg)
Full Text
See detailOA at Liège University : the ORBi gamble
Rentier, Bernard ULg; Thirion, Paul ULg

Scientific conference (2012, October 22)

Detailed reference viewed: 67 (10 ULg)
Full Text
Peer Reviewed
See detailOARSI guidelines for the non-surgical management of knee osteoarthritis
McAlindon; Henrotin, Yves ULg

in Osteoarthritis and Cartilage (2014), 22(3), 363-388

This paper presents concise, up-to-date, patient-focused, evidence-based, expert consensus guidelines for the management of knee osteoarthritis, intended to inform patients, physicians and allied ... [more ▼]

This paper presents concise, up-to-date, patient-focused, evidence-based, expert consensus guidelines for the management of knee osteoarthritis, intended to inform patients, physicians and allied healthcare professionnal worlwide. [less ▲]

Detailed reference viewed: 29 (1 ULg)
Full Text
Peer Reviewed
See detailOARSI recommendations on knee and hip osteoarthritis: use with discernment.
Chevalier, Xavier; Henrotin, Yves ULg

in Joint Bone Spine (2009), 76(5), 455-7

Detailed reference viewed: 13 (2 ULg)
Full Text
Peer Reviewed
See detailOARSI recommended performance-based tests to assess clinical function in osteoathritis of hip and knee: author's reply
Dobson, Flora; Henrotin, Yves ULg

in Osteoarthritis and Cartilage (2013), 21(10), 1625-1626

The OARSI recommended set of performance-based tests of physical function represents the tests of typical activities relevant to individuals diagnosed with hip or knee OA and following joint replacements ... [more ▼]

The OARSI recommended set of performance-based tests of physical function represents the tests of typical activities relevant to individuals diagnosed with hip or knee OA and following joint replacements. These tests are complementary to patient-reported measures and are recommended as prospective outcome measures in future OA research and to assist decision-making in clinical practice. Further research should be directed to expanding the measurement-property evidence of the recommended tests. [less ▲]

Detailed reference viewed: 7 (0 ULg)
Full Text
Peer Reviewed
See detailOARSI recommended performance-based tests to assess physical function in people with established hip and knee osteoarthritis
Dobson, F.; Hinman, R.S.; Roos, E.M. et al

in Osteoarthritis and Cartilage (2013, April), 21(Supplement April 2013),

Detailed reference viewed: 24 (2 ULg)
Full Text
Peer Reviewed
See detailThe OB binary HD 152219: a detached, double-lined, eclipsing system
Sana, H.; Gosset, Eric ULg; Rauw, Grégor ULg

in Monthly Notices of the Royal Astronomical Society (2006), 371(1), 67-80

We present the results of an optical spectroscopic campaign on the massive binary HD 152219 located near the core of the NGC 6231 cluster. Though the primary to secondary optical brightness ratio is ... [more ▼]

We present the results of an optical spectroscopic campaign on the massive binary HD 152219 located near the core of the NGC 6231 cluster. Though the primary to secondary optical brightness ratio is probably about 10, we clearly detect the secondary spectral signature and we derive the first reliable SB2 orbital solution for the system. The orbital period is close to 4.2403 d and the orbit is slightly eccentric (e = 0.08 +/- 0.01). The system is most probably formed by an O9.5 giant and a B1-2 V-III star. We derive minimal masses of 18.6 +/- 0.3 and 7.3 +/- 0.1 M-circle dot for the primary and secondary, respectively, and we constrain the stellar radius at values about 11 and 5 R-circle dot. INTEGRAL-Optical Monitoring Camera (OMC) data reveal that HD 152219 is the third O-type eclipsing binary known in NGC 6231. In the Hertzsprung-Russell (HR) diagram, the primary component lies on the blue edge of the beta Cep-type instability strip and its spectral lines display clear profile variations that are reminiscent of those expected from non-radial pulsations. Finally, we report the analysis of XMM-Newton observations of the system. The X-ray spectrum is relatively soft and is well reproduced by a two-temperature mekal model with kT(1) = 0.26 keV and kT(2) = 0.67 keV. The X-ray flux is most probably variable on a time-scale of days. The average X-ray luminosity during our campaign is log(L-X) approximate to 31.8 (erg s(-1)), but shows fluctuations of about 10 per cent around this value. [less ▲]

Detailed reference viewed: 17 (2 ULg)
See detailObama : l’avenir d’une illusion
Jamin, Jérôme ULg

Article for general public (2008)

Detailed reference viewed: 9 (4 ULg)
See detailObama, le passé d'une illusion
Jamin, Jérôme ULg

Article for general public (2009)

Detailed reference viewed: 13 (4 ULg)
Full Text
Peer Reviewed
See detailThe obese dog and its owner : a method to implement a weight loss program using a concept map
Diez, Marianne ULg; Picavet, Philippe; Istasse, Louis ULg et al

in Mussa, P. P.; Nery, J.; Sciavone, A. (Eds.) et al Congress Proceedings 13t h Congress of the ESVCN (2009)

Detailed reference viewed: 27 (1 ULg)
Full Text
See detailL'obésité (féline) : de la prévention au défi du "thérapeutique"
Diez, Marianne ULg

in 15th FECAVA Eurocongress - Proceedings (2009)

Detailed reference viewed: 22 (1 ULg)
Peer Reviewed
See detailObésité chez l'enfant
Battisti, Oreste ULg

Article for general public (2006)

Detailed reference viewed: 24 (5 ULg)
Full Text
Peer Reviewed
See detailObésité et carences préopératoires
DE FLINES, Jenny ULg; BRUWIER, Laurent; DE ROOVER, Arnaud ULg et al

in Nutrition Clinique et Metabolisme (2013), 27(2), 82-86

It is a common belief that nutritional deficiencies are rare in the Western world due to a wide variety of food supply. However, obese people usually consume dense-energy food but of poor nutritional ... [more ▼]

It is a common belief that nutritional deficiencies are rare in the Western world due to a wide variety of food supply. However, obese people usually consume dense-energy food but of poor nutritional value that lacks proteins, vitamins, minerals and fiber; consequently, a high prevalence of micronutrient deficiencies in obese subjects has been reported. Moreover, bariatric surgery has been proven the most effective treatment of morbid obesity, but micronutrient deficiency following bariatric surgery is a major concern, worsening pre-operative nutritional deficiencies. In this article, we reviewed the litterature and highlighted the prevalence of nutritional deficiencies in the morbidly obese population prior to bariatric surgery, clinical consequences of these deficiencies and practical recommendations for these subjects. [less ▲]

Detailed reference viewed: 37 (4 ULg)
Full Text
Peer Reviewed
See detailObesite et diabete de type 2.
Rorive, Marcelle ULg; Letiexhe, Michel ULg; Scheen, André ULg et al

in Revue Médicale de Liège (2005), 60(5-6), 374-82

Obesity is an epidemic disease associated with numerous cardiovascular risk factors as diabetes mellitus, dyslipidemia, hypertension. Insulin resistance seems to be an important promoter for the ... [more ▼]

Obesity is an epidemic disease associated with numerous cardiovascular risk factors as diabetes mellitus, dyslipidemia, hypertension. Insulin resistance seems to be an important promoter for the development of most of these abnormalities. Besides genetic background, obesity, especially abdominal adiposity, is by far the most important factor for the development of type 2 diabetes. The treatment of a diabetic obese subject begins with diet and regular physical activity, eventually with a psychological support. In case of failure of such lifestyle approach alone, addition of drug therapy should be considered. It may include pharmacological agents able to promote weight loss (orlistat, sibutramine, possibly rimonabant) and/or antihyperglycaemic compounds capable of reducing insulin resistance (metformin, glitazones, acarbose). In case of severe/morbid obesity complicated with type 2 diabetes not well controlled with medical means, bariatric surgery is the only treatment that can induce an important and sustained weight loss, associated with marked improvement of metabolic control and amelioration of overall prognosis. [less ▲]

Detailed reference viewed: 650 (10 ULg)
Full Text
Peer Reviewed
See detailObésité et hypertension artérielle: de la physiopathologie au traitement
Geronooz, Isabelle; Krzesinski, Jean-Marie ULg

in Revue Médicale de Liège (2000), 55(10), 921-928

Obesity constitutes a problem of major concern in our industrialized countries. Overweight is frequently associated with hypertension (50% of hypertensive subjects are obese and the prevalence of ... [more ▼]

Obesity constitutes a problem of major concern in our industrialized countries. Overweight is frequently associated with hypertension (50% of hypertensive subjects are obese and the prevalence of hypertension in obese patients is twice that of the normal population). Both pathologies are major cardiovascular risk factors. This review aims at a better understanding of the relationship between hypertension and overweight and at giving to the clinicians simple and consistent guidelines to treat these two medical entities. [less ▲]

Detailed reference viewed: 660 (1 ULg)