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See detailIncreased Inflammation Delays Wound Healing in Mice Deficient in Collagenase-2 (MMP-8)
Gutierrez-Fernandez, A.; Inada, M.; Balbin, M. et al

in FASEB Journal (2007), 21(10), 2580-91

Matrix metalloproteinases (MMPs) have been implicated in numerous tissue-remodeling processes. The finding that mice deficient in collagenase-2 (MMP-8) are more susceptible to develop skin cancer ... [more ▼]

Matrix metalloproteinases (MMPs) have been implicated in numerous tissue-remodeling processes. The finding that mice deficient in collagenase-2 (MMP-8) are more susceptible to develop skin cancer, prompted us to investigate the role of this protease in cutaneous wound healing. We have observed a significant delay in wound closure in MMP8-/- mice and an altered inflammatory response in their wounds, with a delay of neutrophil infiltration during the first days and a persistent inflammation at later time points. These changes were accompanied by alterations in the TGF-beta1 signaling pathway and by an apoptosis defect in MMP8-/- mice. The delay in wound healing observed in MMP8-/- mice was rescued by bone marrow transplantation from wild-type mice. Analysis of other MMPs showed that MMP8-/- mice had a significant increase in the expression of MMP-9, suggesting that both proteases might act coordinately in this process. This possibility was further supported by the novel finding that MMP-8 and MMP-9 form specific complexes in vivo. Taken together, these data indicate that MMP-8 participates in wound repair by contributing to the resolution of inflammation and open the possibility to develop new strategies for treating wound healing defects. [less ▲]

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See detailIncreased iron absorption during autologous blood donation supported by recombinant human erythropoietin therapy.
Bovy, Christophe ULg; Baudoux, Etienne ULg; Salmon, Jean ULg et al

in Transfusion (2006), 46(9), 1616-23

BACKGROUND: Recombinant human erythropoietin (rHuEPO) therapy improves the success of autologous blood (AB) donation programs before elective surgery. The aim of this study was to evaluate iron absorption ... [more ▼]

BACKGROUND: Recombinant human erythropoietin (rHuEPO) therapy improves the success of autologous blood (AB) donation programs before elective surgery. The aim of this study was to evaluate iron absorption during an AB donation program with or without rHuEPO. STUDY DESIGN AND METHODS: Thirty-two patients were randomly assigned among placebo (Group 1) or 300 (Group 2) or 600 UI per kg rHuEPO (Group 3) on the first, second, and third donation visits. All patients also received daily oral iron (200 mg Fe(+)). RESULTS: The number of units collected in Group 3 was higher than in Group 1 (4.6 +/- 0.5 vs. 3.6 +/- 0.8 units; p < 0.01). Red blood cell (RBC) production increased in a rHuEPO dose-dependent manner. With rHuEPO, the RBC volume collected per unit presented a lower decrease with number of donated units than with placebo and was similar to that of homologous blood units. Storage iron did not influence the number of units collected, whereas circulating mobilizable iron was the limiting factor. Oral iron absorption increased in a rHuEPO dose-dependent manner (12-fold with 600 UI/kg rHuEPO) and was proportional to erythropoietic activity. CONCLUSION: rHuEPO does not only improve the number of AB units collected but also their quality. Storage iron cannot meet marrow iron requirements, but rHuEPO strongly increased oral iron absorption in a dose-dependent fashion through stimulation of erythropoietic activity. [less ▲]

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See detailIncreased levels of glycerol-3-phosphate lead to a stimulation of flux into triacylglycerol synthesis after supplying glycerol to developing seeds of Brassica napus L. in planta.
Vigeolas, Hélène ULg; Geigenberger, Peter

in Planta (2004), 219(5), 827-35

Glycerol-3-phosphate (glycerol-3P) is a primary substrate for triacylglycerol synthesis. In the present study, changes in the levels of glycerol-3P during rape (Brassica napus L.) seed development and the ... [more ▼]

Glycerol-3-phosphate (glycerol-3P) is a primary substrate for triacylglycerol synthesis. In the present study, changes in the levels of glycerol-3P during rape (Brassica napus L.) seed development and the influence of manipulating glycerol-3P levels on triacylglycerol synthesis were investigated. (i) Glycerol-3P levels were high in young seeds and decreased during seed development at 30 and 40 days after flowering (DAF), when lipid accumulation was maximal. (ii) To manipulate glycerol-3P levels in planta, various concentrations of glycerol were injected directly into 30-DAF seeds, which remained otherwise intact within their siliques and attached to the plant. Injection of 0-10 nmol glycerol led to a progressive increase in seed glycerol-3P levels within 28 h. (iii). Increased levels of glycerol-3P were accompanied by an increase in the flux of injected [14C]sucrose into total lipids and triacylglycerol, whereas fluxes to organic acids, amino acids, starch, protein and cell walls were not affected. (iv) When [14C]acetate was injected into seeds, label incorporation into total lipids and triacylglycerol increased progressively with increasing glycerol-3P levels. (v) There was a strong correlation between the level of glycerol-3P and the incorporation of injected [14C]acetate and [14C]sucrose into triacylglycerol. (v) The results provide evidence that the prevailing levels of glycerol-3P co-limit triacylglycerol synthesis in developing rape seeds. [less ▲]

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See detailIncreased matrix metalloproteinase-3 serum levels in rheumatic diseases: relationship with synovitis and steroid treatment
Ribbens, Clio ULg; Martin y Porras, M.; Franchimont, N. et al

in Annals of the Rheumatic Diseases (2002), 61(2), 161-166

OBJECTIVE: To determine matrix metalloproteinase-3 (MMP-3) serum levels in patients with rheumatic diseases and to study the relation between MMP-3 and C reactive protein (CRP) levels. METHODS: MMP-3 ... [more ▼]

OBJECTIVE: To determine matrix metalloproteinase-3 (MMP-3) serum levels in patients with rheumatic diseases and to study the relation between MMP-3 and C reactive protein (CRP) levels. METHODS: MMP-3 serum levels were determined by enzyme linked immunosorbent assay (ELISA) in (a) patients with active inflammatory rheumatic diseases: rheumatoid arthritis (RA), psoriatic arthritis, polymyalgia rheumatica, acute crystal arthritis, and ankylosing spondylitis; (b) patients with active inflammatory systemic diseases: cutaneo-articular or renal systemic lupus erythematosus (SLE), systemic sclerosis, and vasculitides; (c) patients with non-inflammatory rheumatic diseases: osteoarthritis and fibromyalgia; (d) critically ill patients without rheumatic diseases, representing an acute inflammatory control group; (e) healthy controls. RESULTS: MMP-3 serum levels were significantly increased in patients with active RA, psoriatic arthritis, and polymyalgia rheumatica, whether treated or not by corticosteroids, and in female patients with acute crystal arthritis. MMP-3 serum levels were normal in steroid-free patients with active cutaneo-articular or renal SLE, systemic sclerosis, and vasculitides but were significantly increased in steroid treated patients. MMP-3 levels were normal in fibromyalgia, osteoarthritis, ankylosing spondylitis, and acute inflammatory controls. MMP-3 was significantly correlated with CRP in RA (r=0.5, p=0.0004) but not in any of the other disease groups. CONCLUSIONS: MMP-3 serum levels are increased in inflammatory rheumatic diseases characterised by joint synovitis, such as RA, polymyalgia rheumatica, psoriatic arthritis, and acute crystal arthritis-that is, whether the diseases are acute or chronic, erosive or not. They are normal in SLE, systemic sclerosis, and vasculitides as well as in non-rheumatic inflammatory controls, but are significantly increased by steroids. These data strongly suggest that serum MMP-3 reflects synovial inflammation. [less ▲]

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See detailIncreased midbrain gray matter in Tourette's syndrome
Garraux, Gaëtan ULg; Goldfine, Andrew; Bohlhalter, Stephan et al

in Annals of Neurology (2006), 59(2), 381-385

Objective: To investigate cerebral structure in Tourette's syndrome (TS). Methods: Voxel-based morphometry study of high-resolution MRIs in 31 TS patients compared with 31 controls. Results: Increased ... [more ▼]

Objective: To investigate cerebral structure in Tourette's syndrome (TS). Methods: Voxel-based morphometry study of high-resolution MRIs in 31 TS patients compared with 31 controls. Results: Increased gray matter mainly in the left mesencephalon in 31 TS patients. Interpretation: This result constitutes strong and direct evidence supporting Devinsky's hypothesis (Devinsky O. Neuroanatomy of Gilles de la Tourette's syndrome. Possible midbrain involvement. Arch Neurol 1983;40:508514) according to which midbrain disturbances play an important pathogenic role in TS. [less ▲]

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See detailIncreased migration of Langerhans cells in response to HPV16 E6 and E7 oncogene silencing: role of CCL20
Caberg, Jean-Hubert ULg; Hubert, Pascale ULg; Herman, Ludivine ULg et al

in Cancer Immunology, Immunotherapy (2009), 58(1), 39-47

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See detailIncreased mitosis in the bleached gastrodermis of the sea anemone A. pallida
Fransolet, David ULg; Roberty, Stéphane ULg; Plumier, Jean-Christophe ULg

Poster (2010)

Today, coral bleaching represents a major concern for marine biologists, especially considering the upsurge of this phenomenon possibly linked to climate change. Bleached corals, deprived of most of their ... [more ▼]

Today, coral bleaching represents a major concern for marine biologists, especially considering the upsurge of this phenomenon possibly linked to climate change. Bleached corals, deprived of most of their energy incomes, may show a partial or total mortality, which ultimately lead to shifts in reef communities. Studies focusing on cellular bleaching mechanisms have shown different ways by which algae may be expelled from gastrodermal host cells. Among those mechanisms, major emphasis has been put on host cell death, most probably due to both apoptosis and necrosis. Recovering gastrodermis is then expected to undergo regeneration process in order to be reinfected by new algae. We describe here this regeneration process in the bleached sea anemone model A. pallida. [less ▲]

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See detailIncreased Mrna Expression of Decorin in the Prolapsing Posterior Leaflet of the Mitral Valve
Radermecker, M. A.; Limet, Raymond ULg; Lapiere, C. M. et al

in Interactive Cardiovascular and Thoracic Surgery (2003), 2(3), 389-94

To improve our understanding of myxomatous degeneration of the valvar tissue as seen in mitral valve prolapse, we have compared the biosynthetic phenotype of the connective tissue cells in myxomatous ... [more ▼]

To improve our understanding of myxomatous degeneration of the valvar tissue as seen in mitral valve prolapse, we have compared the biosynthetic phenotype of the connective tissue cells in myxomatous segments (n=4) resected during surgery with that of homologous segments of normal valves (n=4) harvested in age-matched organ donors. The steady-state level of mRNA for selected extracellular matrix macromolecules and metalloproteinases was assessed by quantitative (internal standard controlled) reverse transcriptase-polymerase chain reaction (RT-PCR). Among the investigated gene products, the decorin mRNA expression was significantly increased in degenerative valve compared with normal tissue (211+/-48 vs. 100+/-70, p<0.02). The level of fibrillin 2 also tended to be increased (194+/-88 vs. 100+/-81, p=0.08). These results suggest that myxomatous valvar tissue is characterized by an overexpression of mRNA for decorin. Owing to the role of this small leucine-rich proteoglycan in the regulation of fibril assembly and stability, this alteration may account for or is a result of a defective organization of the collagen and elastic fibers in this disease and contribute to the intrinsic distensibility and fragility of the myxomatous tissue. [less ▲]

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See detailIncreased neurophysin I and II cerebrospinal fluid concentrations from bipolar versus unipolar depressed patients.
Legros, Jean-Jacques ULg; Geenen, Vincent ULg; Linkowski, Paul et al

in Neuroendocrinology Letters (1983), 5

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See detailIncreased NF-kB activity in broncho-alveolar lavage cells from an animal model of asthma
Sandersen, Charlotte ULg; Bureau, Fabrice ULg; Turlej, R. et al

in Proceedings: International Conference of the American Thoracic Society (2001)

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See detailIncreased Northern Hemispheric carbon monoxide burden in the troposphere in 2002 and 2003 detected from the ground and from space
Yurganov, Leonid N.; Duchatelet, Pierre ULg; Dzhola, A. V. et al

in Atmospheric Chemistry and Physics (2005), 5

Carbon monoxide total column amounts in the atmosphere have been measured in the High Northern Hemisphere (30degrees - 90degrees N, HNH) between January 2002 and December 2003 using infrared spectrometers ... [more ▼]

Carbon monoxide total column amounts in the atmosphere have been measured in the High Northern Hemisphere (30degrees - 90degrees N, HNH) between January 2002 and December 2003 using infrared spectrometers of high and moderate resolution and the Sun as a light source. They were compared to ground-level CO mixing ratios and to total column amounts measured from space by the Terra/MOPITT instrument. All these data reveal increased CO abundances in 2002 - 2003 in comparison to the unperturbed 2000 - 2001 period. Maximum anomalies were observed in September 2002 and August 2003. Using a simple two-box model, the corresponding annual CO emission anomalies (referenced to 2000 - 2001 period) have been found equal to 95 Tg in 2002 and 130 Tg in 2003, thus close to those for 1996 and 1998. A good correlation with hot spots detected by a satellite radiometer allows one to assume strong boreal forest fires, occurred mainly in Russia, as a source of the increased CO burdens. [less ▲]

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See detailIncreased nuclear factor kappa B activity in Milk Cells of Mastitis-Affected Cows
Boulanger, D.; Bureau, Fabrice ULg; Melotte, D. et al

in Journal of Dairy Science (2003), 86(4), 1259-1267

Bacterial mastitis is accompanied by a drastic increase in milk somatic cell count (SCC), with neutrophils being the predominant cell type found in the infected quarters. Accumulation and activation of ... [more ▼]

Bacterial mastitis is accompanied by a drastic increase in milk somatic cell count (SCC), with neutrophils being the predominant cell type found in the infected quarters. Accumulation and activation of neutrophils at the site of infection require local expression of many inflammatory genes encoding adhesion molecules, chemokines and cytokines. Most of the inflammatory genes contain binding sites for the nuclear factor kappaB (NF-kappaB) within their promoter and therefore partly depend on NF-kappaB for their expression. We thus hypothesized that an increase in NF-kappaB activity in the mammary gland could contribute to development of the neutrophilic inflammation that characterizes mastitis. In an attempt to verify this hypothesis, we first assessed milk cells from healthy and acute and chronic mastitis-affected cows for NF-kappaB activity using electrophoretic mobility shift assays. We next studied the relationships between the intensity of NF-kappaB activity in these cells and the degree of udder inflammation. Active NF-kappaB complexes were undetectable in milk cells from healthy cows, whereas high levels of NF-kappaB activity were always found in cells from cows with acute mastitis. In milk cells obtained from chronic mastitis-affected cows, NF-kappaB activity varied from low to high. Finally, the level of NF-kappaB activity measured in milk cells from chronic mastitis-affected cows was not correlated to SCC or to the proportion of neutrophils present in milk samples, but was highly correlated with the expression level of interleukin-8 and granulocyte/macrophage colony-stimulating factor, two NF-kappaB-dependent cytokines crucially involved in initiation and perpetuation of neutrophilic inflammation. These results suggest that NF-kappaB might play a role in mastitis pathogenesis. [less ▲]

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See detailIncreased number of hip fractures.
Gillet, Pierre ULg; Reginster, Jean-Yves ULg

in Lancet (1999), 353(9170), 2160-1

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See detailIncreased number of mucocytes in Aiptasia pallida following bleaching
Fransolet, David ULg; Herman, Anne-Catherine; Roberty, Stéphane ULg et al

in Yellowlees, D; Hughes, T P (Eds.) proceedings of the 12th International Coral Reef Symposium (2012)

While many studies have investigated histological changes occurring in cnidarians during bleaching, only a few have focused on continuing changes in tissues during the recovery period. Here, we examine ... [more ▼]

While many studies have investigated histological changes occurring in cnidarians during bleaching, only a few have focused on continuing changes in tissues during the recovery period. Here, we examine the response of the sea anemone Aiptasia pallida to a transient elevation of water temperature combined with high illumination. Following 30h of exposure to stress conditions (33°C and 1900μE/m2.s), anemones show a significant reduction in their Symbiodinium concentration followed by a progressive recovery over 8 weeks. Histological analyses show an increase in cell proliferation in both ectoderm and gastroderm tissues one day following the stress. This increased proliferation seems to be sustained after 3 weeks before returning to normal after 8 weeks. Moreover, our results show a progressive increase in the number of ectodermal mucocytes over 3 weeks before returning to a normal level after 8 weeks. While the new cells formed in the gastroderm would most likely host new Symbiodinium, the fate of new cells in the ectoderm is still not completely understood. These new cells may contribute to the increased number of mucocytes which could eventually help shift the feeding mode temporarily to a heterotrophic state until restoration of the symbiosis. [less ▲]

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See detailIncreased number of mucocytes in Aiptasia pallida following heat-induced bleaching
Fransolet, David ULg; Herman, Anne-Catherine; Roberty, Stéphane ULg et al

Poster (2012)

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See detailIncreased oxidative stress status is associated with abdominal aortic aneurysm
PINCEMAIL, Joël ULg; Defraigne, Jean-Olivier ULg; Albert, Adelin ULg et al

in University of Ferrara (Ed.) Second Internaional conference on environmental stressors in biology and medicine (2011, October)

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See detailIncreased Parasellar Activity on Gallium Spect Is Not Specific for Active Cluster Headache
Sianard-Gainko, J.; Milet, J.; Ghuysen, V. et al

in Cephalalgia : An International Journal of Headache (1994), 14(2), 132-3

We have performed Gallium SPECT head scans in 30 successive cluster headache (CH) patients and in 7 migraineurs without aura. Parasellar hyperactivity was judged as present in 81% of chronic CH patients ... [more ▼]

We have performed Gallium SPECT head scans in 30 successive cluster headache (CH) patients and in 7 migraineurs without aura. Parasellar hyperactivity was judged as present in 81% of chronic CH patients, 54% of episodic CH patients in an active period, 56% of episodic CH patients in remission and 71% of migraineurs. No significant correlations were found between the SPECT images and the duration of the disease, of cluster periods or of remissions. Increased parasellar activity on Gallium SPECT is thus not specific for CH, nor for the active period of episodic CH. The method lacks reliability for investigation of putative cavernous sinus inflammation. [less ▲]

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See detailIncreased parathyroïd hormone secretions as a risk factor for femoral osteoporosis in elderly women
Deroisy, Rita ULg; Collette, Julien ULg; Dewe, W. et al

in Osteoporosis International (1998), 8(S3), 40

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See detailIncreased plasma malondialdehyde associated with cerebellar structural defects.
RAMAEKERS, Vincent ULg; Bosman, Bernard ULg; Jansen, G. A. et al

in Archives of disease in childhood (1997), 77(3), 231-4

BACKGROUND: Malondialdehyde (MDA) in plasma is regarded as an indicator for increased lipid peroxidation. METHOD: Measurements of MDA concentrations in plasma were compared among healthy children (n = 31 ... [more ▼]

BACKGROUND: Malondialdehyde (MDA) in plasma is regarded as an indicator for increased lipid peroxidation. METHOD: Measurements of MDA concentrations in plasma were compared among healthy children (n = 31), patients with neurological disorders or epileptic syndromes (n = 15), and children with pontocerebellar structural defects (n = 31), where the cause or genetic defect remained unknown. RESULTS: In healthy children the median MDA value was 5.86 nmol/ml (mean (SD) value: 6.25 (1.97), range: 3.76-11.19). For the group with various neurological disorders or epilepsy, the values were similar with the median value at 5.66 nmol/ml (range 0.22-10.86). Compared with healthy controls and the neurological/ epileptic group, the 31 children with pontocerebellar structural defects had significantly increased MDA values with a median value at 11.29 nmol/ml (mean (SD) value: 11.62 (3.27), range 3.65-19.22). IMPLICATION: These findings of increased plasma MDA in the majority of children with pontocerebellar structural defects of unknown origin raised the question whether increased lipid peroxidation leads to prenatal and postnatal pontocerebellar maldevelopment or degeneration. [less ▲]

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