References of "1999"
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See detailCulture of Gingival Fibroblasts on Bioabsorbable Regenerative Materials in Vitro
Simain-Sato, Franklin ULg; Lahmouzi, Jamila ULg; Kalykakis, G. K. et al

in Journal of Periodontology (1999), 70(10), 1234-9

BACKGROUND: The use of membranes in guided tissue regeneration (GTR) can limit the apical migration of gingival cells and favor the establishment of new attachment by periodontal ligament fibroblasts ... [more ▼]

BACKGROUND: The use of membranes in guided tissue regeneration (GTR) can limit the apical migration of gingival cells and favor the establishment of new attachment by periodontal ligament fibroblasts. However, gingival recession during healing following GTR has been described as a frequent complication. The purpose of this study was to determine if gingival fibroblasts are affected by the composition of the bioabsorbable membranes used in mucogingival surgery. METHODS: Two type of bioabsorbable regenerative materials were used as cell carriers. Wistar rat gingival fibroblasts (RGF) were obtained from attached gingiva, cut into small fragments, and placed in culture dishes. When confluent, cells were detached using trypsin and identified as "first transferred cells" (P1). At the third passage (P3), cell count, trypan blue exclusion test, acid phosphatase activity, DNA synthesis, phase contrast microscopy, and scanning electron microscopy were performed. The cells were then placed in wells containing the membranes and incubated for 72 hours. RESULTS: When examined under microscopy, the control wells (without membranes) showed one cell type with the elongated appearance characteristic of fibroblasts. The wells with membranes showed an altered cell morphology with a high proportion of cell fragments regardless of the type of membrane used. CONCLUSIONS: These results suggest that cell carrier membranes could affect RGF morphology and thus alter gingival tissue healing following GTR. [less ▲]

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See detailLa chirurgie des yeux dans les papyrus grecs d’Égypte
Marganne, Marie-Hélène ULg

in Réalités Ophtalmologiques (1999), 68

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See detailL'enfant dans l'Égypte gréco-romaine
Marganne, Marie-Hélène ULg

in Revue de Pédiatrie (La) (1999), 30(298-7), 30-37

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See detailMulti-Sensor Image Fusion: 3-D Visualization and Search Agents
Waxman, Allen M.; Ross, William; Streilein, William et al

Conference (1999, October)

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See detailAssociation of Tibolone and Fluoride Displays a Pronounced Effect on Bone Mineral Density in Postmenopausal Osteoporotic Women
Reginster, Jean-Yves ULg; Agnusdei, D.; Gennari, C. et al

in Gynecological Endocrinology : The Official Journal of the International Society of Gynecological Endocrinology (1999), 13(5), 361-8

A double-blind, placebo-controlled, randomized, prospective two-center study was carried out to assess the effects of tibolone + fluoride versus placebo + fluoride therapy on trabecular and cortical bone ... [more ▼]

A double-blind, placebo-controlled, randomized, prospective two-center study was carried out to assess the effects of tibolone + fluoride versus placebo + fluoride therapy on trabecular and cortical bone in postmenopausal osteoporotic women. Ninety-four subjects (mean age 61.1 years, postmenopausal 13.5 years on average) with low bone mineral density (BMD) at baseline were randomized to 2.5 mg of tibolone (Org OD 14, Livial) plus 26.4 mg of fluoride (Fluocalcic) or placebo plus 26.4 mg of fluoride daily over 2 years; 55 (58.5%) subjects completed the study, the main reason for discontinuation being untoward gastrointestinal effects. BMD at the lumbar spine was measured by both dual photon absorptiometry (DPA) and dual-energy X-ray absorptiometry (DXA), and at the hip by DXA at 6-month intervals. Baseline values (DXA, g/cm2) for tibolone + fluoride and placebo + fluoride groups were 0.733 and 0.744 for the lumbar spine, and 0.761 and 0.788 for the hip. Change from baseline and percentage change from baseline were calculated for the intent-to-treat and completers groups. An analysis of variance (ANOVA) model or Wilcoxon test was used for statistical evaluation. There was a mean increase in BMD at the lumbar spine measured by DPA of 25.3% and 12.3% in tibolone + fluoride and placebo + fluoride groups, respectively (p = 0.01); with DXA, respective changes were 32.6% and 14.0% (p = 0.013). Data on BMD at the hip showed mean increases of 7.9% and 2.6% for the tibolone + fluoride and placebo + fluoride groups, respectively. We conclude that combined tibolone + fluoride treatment induces a highly significant increase in BMD at the lumbar spine without simultaneous loss of the cortical bone allowing for a meaningful reduction of the fluoride dose when given in combination with tibolone. [less ▲]

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See detailLa gestion de la santé par des jeunes défavorisés : une action pluridisciplinaire
Grignard, Sophie; Lechien, Xavier; Vandoorne, Chantal ULg

Report (1999)

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See detail18 kyr, 120 kyr & 5 Myr shortening rates along the front of the southern Tianshan Mountains (China),
Hubert, Aurelia ULg; Suppe, J; Wang, Xin et al

in Geological Society of America - Abstracts with Programs (1999, October), 31(7),

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See detailLes sensibilités territoriales
Schmitz, Serge ULg

Doctoral thesis (1999)

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See detailSclerosing encapsulating peritonitis in two young Dobberman
Michiels, L.; Peeters, Dominique ULg; Hansen, P. et al

in 9th ESVIM Meeting - Perugia - Italie (1999, October)

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See detailAspergillus fumigatus detection by PCR in broncho-alveolar fluid
Hayette, Marie-Pierre ULg; Boland, Pascal; Evrard, Béatrice et al

Poster (1999, September 29)

Background: The usefullness of a nested PCR for detection of Aspergillus fumigatus DNA was evaluated in bronchoalveolar lavage (BAL) fluid during a period of two years (1996- 1998). The aim of the study ... [more ▼]

Background: The usefullness of a nested PCR for detection of Aspergillus fumigatus DNA was evaluated in bronchoalveolar lavage (BAL) fluid during a period of two years (1996- 1998). The aim of the study was to assess the role of PCR in diagnosing invasive pulmonary aspergillosis (IPA). Methods: A nested PCR-based amplification of fragments of genes-encoding alkaline proteases from A. fumigatus was used to test 167 BAL samples. All samples were checked for the absence of amplification inhibitors. Medical, radiological, microbiological records and autopsy findings were reviewed for assessing invasive aspergillosis. All successive patients investigated by BAL were included in the study. They were distributed in three groups: A, proven or probable aspergillosis (n=11); B, colonization (n=2); C, no evidence of IPA (n=154). PCR results were compared to culture détection as gold standard and to clinical data. Results: BAL fluids from 10 patients of group A were PCR positive. One case was falsely negative. Among group B, one case was PCR positive, and the second one PCR negative but had negative BAL cultures (only culture positive sputum). No false positive was detected among group C. Comparing to culture, sensitivity was 91%, specificity, 100%, positive predictive value, 100% and négative predictive value, 99%. Conclusion: 1. Aspergillus fumigatus PCR in BAL fluid was an accurate test to diagnose culture negative patients with IPA and to confirm culture positive samples; however it doesn't make difference between infection and colonization. 2. It is an appropriate test to exclude Aspergillus infection in patients at risk of invasive illness. [less ▲]

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See detailLateral structures of thin films of ampholytic diblock copolymers adsorbed from dilute aqueous solution at the solid/liquid Interface
Walter, H.; Muller-Buschbaum, P.; Gutmann, J. S. et al

in Langmuir (1999), 15(20), 6984-6990

The lateral structures of dried thin films of the ampholytic diblock copolymer poly((methacrylic acid)-block-((dimethylamino)ethyl methacrylate)) adsorbed from dilute aqueous solution onto silicon ... [more ▼]

The lateral structures of dried thin films of the ampholytic diblock copolymer poly((methacrylic acid)-block-((dimethylamino)ethyl methacrylate)) adsorbed from dilute aqueous solution onto silicon substrates were investigated by scanning force microscopy (SFM) and diffuse X-ray scattering. The adsorbed amount of polymer, as a function of pH, reveals a maximum near the isoelectric point (IEP) of the polyampholyte. Different lateral structures are determined for samples adsorbed at pH values above the maximum of the adsorbed amount, as compared to the ones adsorbed at pH values below this maximum. At a pH around the IEP, the polyampholyte precipitates and the layers are formed by adsorption of flocks with sizes in the micrometer range. Lateral structures measured by SFM are similarly detected by diffuse X-ray scattering. The later technique delivers a statistical description of the lateral surface structures averaged over a larger area. The structures investigated are related to the polyampholyte structure in solution and can be explained by the interplay of the electrostatic interactions of the two oppositely charged blocks of the polyampholyte and the charged surface, as well as by the dependencies of charge densities on pH. [less ▲]

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See detailLa valeur Université
Legros, Willy ULg

Speech (1999)

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See detailNewcastle disease virus infection, a permanent threat for poultry and pet birds
Vindevogel, Henri ULg; Duchatel; Marlier, Didier ULg et al

in Proceedings of the 26th world veterinary congress (1999, September 23)

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See detailPostethnicity and citizenship in the European Union
Martiniello, Marco ULg

Scientific conference (1999, September 22)

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See detailL'hyperprolactinémie : résultats du traitement à la Cabergoline chez 455 patients
Beckers, Albert ULg

Scientific conference (1999, September 20)

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See detailSituation, spécificité et développement de la production de volailles en Wallonie.
Thewis, André ULg

Conference given outside the academic context (1999)

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See detailO stress no trabalho: do diagnostico a intervencao.
Hansez, Isabelle ULg

Conference (1999, September 17)

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