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See detailPseudo-anévrysme de l'isthme aortique après correction chirurgicale de la coarctation aortique
Brüls, Samuel ULg; RADERMECKER, Marc ULg; CREEMERS, Etienne ULg et al

in Revue Médicale de Liège (2008), 63(11), 666-70

Aortic pseudo-aneurysm is a well-known late complication after surgical repair of aortic coarctation. We report two cases of pseudo-aneurysm of the aortic isthmus evidenced after previous surgical repair ... [more ▼]

Aortic pseudo-aneurysm is a well-known late complication after surgical repair of aortic coarctation. We report two cases of pseudo-aneurysm of the aortic isthmus evidenced after previous surgical repair of congenital aortic coarctation. These clinical observations give us the opportunity to underline the importance of a specific lifelong medical follow-up for patients who have undergone such surgery. [less ▲]

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See detailLe pseudo-Aravatius
Kurth, Godefroid ULg

in Analecta Bollandiana : Revue Critique d’Hagiographie = A Journal of Critical Hagiography (1897), XVI

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See detailPseudo-articulations à col hyperbolique
Debongnie, Jean-François ULg

Report (2013)

This report is devoted to the elastic response of hyperbolic notch hinges. Circular, elliptic and parabolic notch hinges have been treated in ealier reports. The adopted step is the same : firstly, for ... [more ▼]

This report is devoted to the elastic response of hyperbolic notch hinges. Circular, elliptic and parabolic notch hinges have been treated in ealier reports. The adopted step is the same : firstly, for each fundamental load case, the analytical solution is developed in the frame of the classical beam theory ; from this, the asymptotic solution for very narrow hinges is produced ; thirdly, a correction factor is defined, which relates the exact theory to the asymptotic one ; finally, and this is perhaps our main originality, simple but very fair approximations of these correction factors are presented. [less ▲]

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See detailPseudo-articulations à col parabolique
Debongnie, Jean-François ULg

Report (2012)

Ce rapport donne la théorie des pseudo-articulations à col parabolique. Faisant suite à des travaux antérieurs du Laboratoire de Méthodes de Fabrication, il adopte la même démarche, à savoir:1)Solution ... [more ▼]

Ce rapport donne la théorie des pseudo-articulations à col parabolique. Faisant suite à des travaux antérieurs du Laboratoire de Méthodes de Fabrication, il adopte la même démarche, à savoir:1)Solution exacte; 2)Solution asymptotique; 3)Facteur correctif pour passer de la solution exacte à la solution asymptotique 4) Expression approchée de ce facteur. Cette démarche fournit des solutions très bien approchées et beaucoup plus simples à utiliser que celles de la littérature, un fait appréciable au niveau de la conception. [less ▲]

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See detailPseudo-Bartter syndrome in a pregnant mother and her fetus
Mathot, Michel ULg; Maton, P.; Henrion, Elisabeth ULg et al

in Pediatric Nephrology (2006), 21(7), 1037-1040

Pseudo-Bartter syndrome presents the same clinical and biological characteristics as Bartter syndrome but without primary renal tubule abnormalities. We relate the case of a premature baby presenting at ... [more ▼]

Pseudo-Bartter syndrome presents the same clinical and biological characteristics as Bartter syndrome but without primary renal tubule abnormalities. We relate the case of a premature baby presenting at birth with severe hypokalemic metabolic alkalosis associated with hyponatremia and hypochloremia. Maternal blood at the time of delivery showed the same electrolyte perturbations. The baby's mother had suffered from anorexia and vomiting during pregnancy. A few weeks after birth the baby's blood abnormalities had almost returned to normal. Chloride depletion is at the origin of both maternal and fetal hypokalemic alkalosis. [less ▲]

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See detailLes pseudo-déonomastiques arabes en français : Étude de cas et tentative de typologie
Baiwir, Esther ULg; Steffens, Marie ULg

in Dworkin, Steven; García arias, Xosé Lluis; Kramer, Johannes (Eds.) Actes du XXVIIe Congrès international de linguistique et de philologie romanes (Nancy, 15-20 juillet 2013). Section 6 : Étymologie (2014)

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See detailPseudo-geographical representations of power system buses by multidimensional scaling
Belmudes, Florence ULg; Ernst, Damien ULg; Wehenkel, Louis ULg

in Proceedings of the 15th International Conference on Intelligent System Applications to Power Systems (ISAP 2009) (2009)

Graphical representations of power systems are systematically used for planning and operation. The coordinate systems commonly used by Transmission System Operators are static and reflect the geographical ... [more ▼]

Graphical representations of power systems are systematically used for planning and operation. The coordinate systems commonly used by Transmission System Operators are static and reflect the geographical positions of each equipment of the system. We propose in this work to position on a twodimensional map the different buses of a power system in a way such that their coordinates also highlight some other physical information related to them. These pseudo-geographical representations are computed by formulating multidimensional scaling problems which aim at mapping a distance matrix combining both geographical and physical information into a vector of two-dimensional bus coordinates. We illustrate through examples that these pseudo-geographical representations can help to gain insights into the power system physical properties. [less ▲]

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See detailPseudo-hippocratisme digital: une entité à distinguer
Lizin, V. A.; Richert, Bertrand ULg; de LA BRASSINNE, Michel ULg

in Nouvelles Dermatologiques (2003), 22

Pseudo-clubbing is different in many respects from clubbing. Its causes are multiple, mechanical, tumoral of sometimes congenital, while clubbing occurs mostly in association with hypoxia. Pseudo-clubbing ... [more ▼]

Pseudo-clubbing is different in many respects from clubbing. Its causes are multiple, mechanical, tumoral of sometimes congenital, while clubbing occurs mostly in association with hypoxia. Pseudo-clubbing is also characterized by an increased transversal and longitudinal curvature of the nail plate but the other anatomic considerations associated with clubbing are not present. [less ▲]

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See detailPseudoaneurisma gigante del ventriculo izquierdo
Olivieri, E.; Guessaghi, R.; Chavin, A. et al

in Prensa Medica Argentina (1996), 83(10), 919-924

A 85 years old patient was hospitalized because of thoracic pain, lasting since three months. He suffered of Parkinson's disease and he was a smoker. The pain increased with cough and Vansalva's test. His ... [more ▼]

A 85 years old patient was hospitalized because of thoracic pain, lasting since three months. He suffered of Parkinson's disease and he was a smoker. The pain increased with cough and Vansalva's test. His left arm was cianotic. An arterial obstruction was suspected. Dopler ultrasound of the left arm confirmed a partial obstruction of the left axillar artery. Surprisingly, thoracic scan and MRI found an important cardiomegaly. The heart was in contact with the diaphragmatic and gastric region. Ecocardiography confirmed a 7 cm pseudo aneurysm of the left ventricle. Coronarography showed extreme hypokinesia of the left ventricle. There was also an obstruction of the right coronary and 50 % stenosis of the left coronary. Pseudo aneurysm was a complication of myocardial infarction of the left ventricle. Surgery was offered to the patient, but he declined the intervention. He was dismissed with medical treatment and anticoagulation. The patient deceased three months later. [less ▲]

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See detailPseudoanevrisme de l'artere gastrique gauche.
Honore, Charles ULg; Bruyere, Pierre-Julien ULg; Maweja, Sylvie ULg et al

in Journal de Chirurgie (2009), 146(4), 413-5

We report the case of a 65-year-old man admitted for an upper-GI hemorrhage. A CT scan performed with vascular reconstructions demonstrated a pseudoaneurysm of the left gastric artery. Proximal vascular ... [more ▼]

We report the case of a 65-year-old man admitted for an upper-GI hemorrhage. A CT scan performed with vascular reconstructions demonstrated a pseudoaneurysm of the left gastric artery. Proximal vascular control of the celiac axis was obtained by balloon occlusion with a Fogarty balloon inserted retrograde via the femoral artery: the pseudoaneurysm was then successfully controlled with direct suture. [less ▲]

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See detailPseudofolliculites et affections apparentees chez les sujets a peau noire.
FRANCHIMONT, Claudine ULg; PIERARD, Gérald ULg

in Revue Médicale de Liège (2011), 66(3), 140-3

The unique structure of the hair in Black people is responsible for a few specific follicular disorders. Pseudofolliculitis of the beard similar to pili incarnati as well as, the so-called keloidal acne ... [more ▼]

The unique structure of the hair in Black people is responsible for a few specific follicular disorders. Pseudofolliculitis of the beard similar to pili incarnati as well as, the so-called keloidal acne and the follicular degeneration syndrome are frequent clinical entities in ethnic dermatology. [less ▲]

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See detailpseudofossil
Javaux, Emmanuelle ULg

in Gargaud et al (Ed.) Encyclopedia of Astrobiology (2011)

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See detailLa pseudogestation chez la chèvre, facteur d'infertilité
Zarrouk, Anissa; Drion, Pierre ULg; Beckers, Jean-François ULg

in Annales de Médecine Vétérinaire (2000), 144

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See detailPseudolymphomes cutanés et pseudoclonalité des infiltrats lymphoïdes.
Quatresooz, Pascale ULg; Franchimont, Claudine ULg; Devillers, Céline ULg et al

in Revue Médicale de Liège (2009), 64

Cutaneous pseudolymphomas represent an heterogeneous group of tumours resembling lymphomas by some clinical and histological aspects. They are distinguished, in particular, by their benign evolution. The ... [more ▼]

Cutaneous pseudolymphomas represent an heterogeneous group of tumours resembling lymphomas by some clinical and histological aspects. They are distinguished, in particular, by their benign evolution. The histological and immunohistological examinations combined with molecular biology help to elucidate any diagnostic uncertainty. In these diseases, monoclonality and pseudoclonality must be distinguished in the lymphoid infiltrates. Searching for any specific etiology is important because removing the cause is likely to clear the lesions. [less ▲]

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See detailPseudomalabsorption of thyroid hormones: case report and review of the literature.
Livadariu, E.; Valdes Socin, Hernan Gonzalo ULg; Burlacu, M. C. et al

in Annales d'Endocrinologie (2007), 68(6), 460-463

Many causes of thyroxine malabsorption are described in the literature, but the most common cause of failure of thyroxine therapy is poor patient compliance, or pseudomalabsorption. We describe the case ... [more ▼]

Many causes of thyroxine malabsorption are described in the literature, but the most common cause of failure of thyroxine therapy is poor patient compliance, or pseudomalabsorption. We describe the case of a female patient who underwent total thyroidectomy for Basedow-Graves disease. Post-operatively, several treatment regimens were employed to achieve euthyroidism, but only injectable thyroxine was found to be effective. To exclude levothyroxine malabsorption, the patient was hospitalized in a hypothyroid state while a single oral test dose of levothyroxine (1000 microg) was administered. Within 4 hours a decrease of TSH level (from 59.7 to 55.6 microUI/ml) and a significant increase in free T4 levels (from 0.8 to 15.5 pg/ml) was observed, eliminating a malabsorption problem. The cause of resistance to thyroid hormone therapy was poor patient compliance, leading to the designation of this as a case of pseudomalabsorption. [less ▲]

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See detailPseudomembranous colitis with Clostridium difficile during treatment by moxifloxacine (quinolone)
Le Goff, Caroline ULg; Wiesen, Patricia ULg; Collette, Julien ULg et al

Poster (2005, October 27)

C. difficile is the most frequently pathogenic agent isolated in colitis associated with antibiotics and pseudomembranous colitis (PMC). C. difficile takes advantage of the disturbance of the intestinal ... [more ▼]

C. difficile is the most frequently pathogenic agent isolated in colitis associated with antibiotics and pseudomembranous colitis (PMC). C. difficile takes advantage of the disturbance of the intestinal flora to settle. We report a case of PMC appeared during treatment with moxifloxacine in a pulmonary infection in an emphysematous patient. The diarrhea is generally benign, but can be severe, with toxic megacolon or even the extreme case of colic perforation. The diagnosis is based on the research of toxins of C. difficile (A and/or B) in the intestinal stools or liquids (collected at the time of the endoscopic examination) to which is associated the anaerobic culture on selective agar. The reference method is the measurement of the cytotoxic effect of the B-toxin on a cell culture. Metronidazole or vancomycine constitutes the treatment. The prevention of relapses is very important, hygiene measures and probiotic agents must be associated to the antibiotic treatment. [less ▲]

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See detailPseudomonas aeruginosa displays an epidemic population structure.
Pirnay, Jean-Paul; De Vos, Daniel; Cochez, Christel et al

in Environmental microbiology (2002), 4(12), 898-911

Bacteria can have population structures ranging from the fully sexual to the highly clonal. Despite numerous studies, the population structure of Pseudomonas aeruginosa is still somewhat contentious. We ... [more ▼]

Bacteria can have population structures ranging from the fully sexual to the highly clonal. Despite numerous studies, the population structure of Pseudomonas aeruginosa is still somewhat contentious. We used a polyphasic approach in order to shed new light on this issue. A data set consisting of three outer membrane (lipo)protein gene sequences (oprI, oprL and oprD), a DNA-based fingerprint (amplified fragment length polymorphism), serotype and pyoverdine type of 73 P. aeruginosa clinical and environmental isolates, collected across the world, was analysed using biological data analysis software. We observed a clear mosaicism in the results, non-congruence between results of different typing methods and a microscale mosaic structure in the oprD gene. Hence, in this network, we also observed some clonal complexes characterized by an almost identical data set. The most recent clones exhibited serotypes O1, 6, 11 and 12. No obvious correlation was observed between these dominant clones and habitat or, with the exception of some recent clones, geographical origin. Our results are consistent with, and even clarify, some seemingly contradictory results in earlier epidemiological studies. Therefore, we suggest an epidemic population structure for P. aeruginosa, comparable with that of Neisseria meningitidis, a superficially clonal structure with frequent recombinations, in which occasionally highly successful epidemic clones arise. [less ▲]

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See detailPseudomonas aeruginosa et unités de soins intensifs chirurgicaux
Rousseaux, D.; Osterrieth, P. M.; Damas, Pierre ULg

in Annales de Biologie Clinique (1988), 46(2), 145-150

The prevalence of Pseudomonas aeruginosa in intensive care unit (ICU) is 19 per cent although its incidence in blood culture is only 3.5 per cent and remains the same even though the total prevalence of ... [more ▼]

The prevalence of Pseudomonas aeruginosa in intensive care unit (ICU) is 19 per cent although its incidence in blood culture is only 3.5 per cent and remains the same even though the total prevalence of this bacterium increases. A review of the clinical results shows that this germ causes severe complications in only 3 per cent of patients. A study by epidemiological markers reveals the presence of 16 different IATS serotypes in the ICU, this distribution of the serotypes being similar to this observed in ambulatory patients. The serotype 12 of Ps. aeruginosa is multiresistant. In 1984, it represented 22 per cent of the isolated Ps. aeruginosa, its incidence decreases in 1985 and in 1986 (14.5%). Ps. aeruginosa seems weakly pathogenic for the surgical patients in the ICU. On the other hand, the incidence of Klebsiella pneumoniae, Serratia marcescens (014 imm. serotype resistant to tobramycin), Enterobacter aerogenes and Enterobacter cloacae increases in blood cultures proportionally to their total prevalence in ICU. These bacteria are probably responsible for hospital epidemics. [less ▲]

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See detailThe Pseudomonas aeruginosa membranes: A target for a new amphiphilic aminoglycoside derivative?
Ouberai, M.; El Garch, F.; Bussiere, A. et al

in Biochimica et biophysica acta (2011)

Aminoglycosides are among the most potent antimicrobials to eradicate Pseudomonas aeruginosa. However, the emergence of resistance has clearly led to a shortage of treatment options, especially for ... [more ▼]

Aminoglycosides are among the most potent antimicrobials to eradicate Pseudomonas aeruginosa. However, the emergence of resistance has clearly led to a shortage of treatment options, especially for critically ill patients. In the search for new antibiotics, we have synthesized derivatives of the small aminoglycoside, neamine. The amphiphilic aminoglycoside 3',4',6-tri-2-naphtylmethylene neamine (3',4',6-tri-2NM neamine) has appeared to be active against sensitive and resistant P. aeruginosa strains as well as Staphylococcus aureus strains (Baussanne et al., 2010). To understand the molecular mechanism involved, we determined the ability of 3',4',6-tri-2NM neamine to alter the protein synthesis and to interact with the bacterial membranes of P. aeruginosa or models mimicking these membranes. Using atomic force microscopy, we observed a decrease of P. aeruginosa cell thickness. In models of bacterial lipid membranes, we showed a lipid membrane permeabilization in agreement with the deep insertion of 3',4',6-tri-2NM neamine within lipid bilayer as predicted by modeling. This new amphiphilic aminoglycoside bound to lipopolysaccharides and induced P. aeruginosa membrane depolarization. All these effects were compared to those obtained with neamine, the disubstituted neamine derivative (3',6-di-2NM neamine), conventional aminoglycosides (neomycin B and gentamicin) as well as to compounds acting on lipid bilayers like colistin and chlorhexidine. All together, the data showed that naphthylmethyl neamine derivatives target the membrane of P. aeruginosa. This should offer promising prospects in the search for new antibacterials against drug- or biocide-resistant strains. [less ▲]

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See detailThe Pseudomonas aeruginosa pirA gene encodes a second receptor for ferrienterobactin and synthetic catecholate analogues.
Ghysels, Bart ULg; Ochsner, Urs; Mollman, Ute et al

in FEMS microbiology letters (2005), 246(2), 167-74

Actively secreted iron chelating agents termed siderophores play an important role in the virulence and rhizosphere competence of fluorescent pseudomonads, including Pseudomonas aeruginosa which secretes ... [more ▼]

Actively secreted iron chelating agents termed siderophores play an important role in the virulence and rhizosphere competence of fluorescent pseudomonads, including Pseudomonas aeruginosa which secretes a high affinity siderophore, pyoverdine, and the low affinity siderophore, pyochelin. Uptake of the iron-siderophore complexes is an active process that requires specific outer membrane located receptors, which are dependent of the inner membrane-associated protein TonB and two other inner membrane proteins, ExbB and ExbC. P. aeruginosa is also capable of using a remarkable variety of heterologous siderophores as sources of iron, apparently by expressing their cognate receptors. Illustrative of this feature are the 32 (of which 28 putative) siderophore receptor genes observed in the P. aeruginosa PAO1 genome. However, except for a few (pyoverdine, pyochelin, enterobactin), the vast majority of P. aeruginosa siderophore receptor genes still remain to be characterized. Ten synthetic iron chelators of catecholate type stimulated growth of a pyoverdine/pyochelin deficient P. aeruginosa PAO1 mutant under condition of severe iron limitation. Null mutants of the 32 putative TonB-dependent siderophore receptor encoding genes engineered in the same genetic background were screened for obvious deficiencies in uptake of the synthetic siderophores, but none showed decreased growth stimulation in the presence of the different siderophores. However, a double knock-out mutant of ferrienterobactin receptor encoding gene pfeA (PA 2688) and pirA (PA0931) failed to be stimulated by 4 of the tested synthetic catecholate siderophores whose chemical structures resemble enterobactin. Ferric-enterobactin also failed to stimulate growth of the double pfeA-pirA mutant although, like its synthetic analogues, it stimulated growth of the corresponding single mutants. Hence, we confirmed that pirA represents a second P. aeruginosa ferric-enterobactin receptor. The example of these two enterobactin receptors probably illustrates a more general phenomenon of siderophore receptor redundancy in P. aeruginosa. [less ▲]

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