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See detailEffect of precolonization of bean seeds with Trichoderma, on symptoms induced by Pythium.
Cotes, A. M.; Lepoivre, Philippe ULg; Semal, J.

in Mededelingen van de Faculteit Landbouwwetenschappen (Rijksuniversiteit te Gent) (1992), 57(2b),

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See detailEffect of prenatal androgen receptor antagonist or aromatase inhibitor on the differentiation of neuronal Fos responses to estrous female pheromones in the rat accessory olfactory system
Dominguez, Emilio; Portillo, Wendy; Baum, Michael J et al

in Physiology & Behavior (2002), 75

Many socially relevant odors are detected in rodent species by the vomeronasal organ and subsequently processed by the accessory olfactory system (AOS). We previously found that gonadectomized male and ... [more ▼]

Many socially relevant odors are detected in rodent species by the vomeronasal organ and subsequently processed by the accessory olfactory system (AOS). We previously found that gonadectomized male and female rats treated in adulthood with testosterone propionate (TP) showed equivalent Fos responses in the AOS to odors derived from estrous females. Likewise, in contrast with numerous other mammalian species, gonadectomized female rats show surprisingly high levels of male-typical mounting behavior in response to adult TP. We tested the hypothesis that prenatal testosterone (T) exposure, acting via androgen receptors (ARs) or via estrogen receptors, masculinizes the AOS in rats of both sexes. Pregnant dams were treated with either the AR blocker, Flutamide, the aromatase inhibitor, 1,4,6-androstatriene-3,17-dione (ATD), or nothing (control) to assess the role of prenatal androgen and estradiol receptor activation, respectively, in this masculinization. Beginning at birth, male and female offspring were injected subcutaneously (sc) every other day with either ATD (pre- and neonatal ATD group) or oil vehicle (Flutamide and control groups) until postnatal Day 12. Subjects were gonadectomized as adults, hormonally treated and tested for different behaviors before having their AOS Fos responses to estrous female odors assessed. Prenatal treatment with Flutamide (but not ATD) significantly decreased anogenital distance and severely impaired intromissive and ejaculatory behaviors in males tested after TP replacement without disrupting mounting capacity in either sex. Pre- and neonatal treatment with ATD (but not Flutamide) enhanced lordosis responsiveness in males tested after sc injections of estradiol and progesterone, whereas these perinatal treatments had no effect on any aspect of masculine coital performance in either sex. After TP treatment, male and female control subjects preferred to approach a tethered stimulus female as opposed to a male, and prenatal Flutamide or perinatal ATD treatments did not modify this pattern of partner preference. Neuronal Fos responses to estrous odors were (as in previous studies) identical in the AOS of gonadectomized TP-treated control males and females. Prenatal Flutamide or perinatal ATD treatments failed to disrupt consistently this profile of Fos responses to estrous odors in the AOS of rats of either sex. These behavioral and neuroanatomical findings raise the possibility that the similar level of male-typical responsiveness to social odors that occurs in male and female rats after adult TP treatment results from nonsteroid-hormone-dependent, species-specific factors that act perinatally in the brains of rats of both sexes. [less ▲]

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See detailEffect of prenatal undernutrition of the chicken embryo on growth and metabolism up to day 7
Willems, Els; Willemsen, Hilke; Li, Yue et al

Poster (2011)

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See detailEffect of prenatal undernutrition of the chicken embryo on postnatal performance up to day 21
Willems, Els; Willemsen, Hilke; Wang, Yufeng et al

in The 5th combined workshop: Fundamental Physiology of the European working group of physiology and perinatal development in poultry (2011)

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See detailEffect of pressure and temperature upon tin alkoxide-promoted ring-opening polymerisation of epsilon-caprolactone in supercritical carbon dioxide
Stassin, Fabrice; Jérôme, Robert ULg

in Chemical Communications (2003), (2), 232-233

Ring-opening polymerisation of epsilon-caprolactone in supercritical carbon dioxide is slowed down by a carbonation reaction, resulting in a positive volume of activation and a higher energy of activation ... [more ▼]

Ring-opening polymerisation of epsilon-caprolactone in supercritical carbon dioxide is slowed down by a carbonation reaction, resulting in a positive volume of activation and a higher energy of activation as compared to polymerisation in a regular hydrocarbon solvent. [less ▲]

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See detailThe effect of pressure on DSr (plag/melt) and DCr (opx/melt): implications for anorthosite petrogenesis
Vander Auwera, Jacqueline ULg; Longhi, John; Duchesne, Jean-Clair ULg

in Earth & Planetary Science Letters (2000), 178

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See detailEffect of pressure, temperature, fluorine doping, and rare earth elements on the phonon density of states of LFeAsO studied by nuclear inelastic scattering
Sergueev, I.; Hermann, Raphael ULg; Bessas, D. et al

in PHYSICAL REVIEW B (2013), 87(6), 064302-9

We have performed systematic studies of the lattice dynamics in LFeAsO (L = La, Ce, Pr, Nd, Sm) in the parent and in the similar to 10% F-doped compounds as a function of pressure and temperature. We have ... [more ▼]

We have performed systematic studies of the lattice dynamics in LFeAsO (L = La, Ce, Pr, Nd, Sm) in the parent and in the similar to 10% F-doped compounds as a function of pressure and temperature. We have found that the modifications in the partial Fe density of phonon states are mainly governed by the Fe-As bond length. The change of this bond length explains the change of the Fe density of phonon states above 25 meV. We further observe anomalies in the behavior of the phonon mode near 16 meV. In the parent phase, this mode softens anomalously upon cooling through the structural phase transition. Upon F doping, this mode hardens indicating a strong electron-phonon coupling. This suggests that the corresponding phonons play an important role in the competition between superconductivity and magnetism in these materials. DOI: 10.1103/PhysRevB.87.064302 [less ▲]

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See detailEffect of preventive antioxidant supplementation on lung function, airway inflammation and pulmonary 8-epi-PGF2 of calves exposed to ozone
Kirschvink, Nathalie; Fievez, Laurence ULg; Jacqmot, O. et al

in Proceedings: Réunion de la Société Belge de Physiologie et de Pharmacologie Fondamentales et Cliniques (2001)

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See detailEffect of previous antidepressant therapy on the growth hormone response to apomorphine.
Pitchot, William ULg; Hansenne, Michel ULg; Gonzalez Moreno, A. et al

in Neuropsychobiology (1995), 32(1), 19-22

Several lines of evidence suggest a role for dopamine in the pathophysiology of depression. In 1988, we reported a blunted response of growth hormone (GH) to apomorphine, a dopaminergic agonist, in ... [more ▼]

Several lines of evidence suggest a role for dopamine in the pathophysiology of depression. In 1988, we reported a blunted response of growth hormone (GH) to apomorphine, a dopaminergic agonist, in endogenous depression. However, an antidepressant washout period is a major confounding factor in studies assessing the GH response to apomorphine. Indeed, whereas the influence of tricyclic antidepressants on the GH response to apomorphine is presently unknown, several reports have suggested that tricyclics may impair the GH response to clonidine for periods longer than 3 weeks following their discontinuation. In the present study, we hypothesized that a blunted GH response to apomorphine in depressed patients could be related to the recent administration of antidepressants. Therefore, the GH response to apomorphine (0.5 mg) was studied in 11 male DSM-III-R major depressive inpatients who had never received antidepressant therapy (group 1) compared to 11 normal controls and 11 major depressive inpatients drug free for at least 2 weeks (group 2). The three groups differed significantly in the GH peak response to apomorphine: mean (SD) 5.4 (4.0) ng/ml in group 1, 25.5 (10.7) in normal controls, and 5.5 (5.1) in group 2 (F = 15.5, df = 3, 30, p = 0.00001). While group 1 and normal controls (F = 21.8, p = 0.0002) as well as group 2 and controls (F = 5.6, p = 0.03) differed significantly, group 1 and group 2 did not (F = 0.18, p = 0.68). These results suggest that a washout period of 2 weeks could be sufficient in studies assessing the GH response to apomorphine. [less ▲]

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See detailEffect of processing conditions on phenolic compounds and antioxidant properties of date syrup
Abbès, F.; Kchaou, W.; Blecker, Christophe ULg et al

in Industrial Crops & Products (2013), 44

Commercial hydrolytic enzymes (pectinase and cellulase) were investigated for their influence on phenolics and antioxidant activities of date syrup. Content of total phenolics, flavonoids and carotenoids ... [more ▼]

Commercial hydrolytic enzymes (pectinase and cellulase) were investigated for their influence on phenolics and antioxidant activities of date syrup. Content of total phenolics, flavonoids and carotenoids contents were determined spectrophotometrically. Polyphenols composition was examined using HPLC. Seven phenolic compounds (catechin, vanillic acid, caffeic acid, syringic acid, p-coumaric acid, ferulic acid and sinapic acid) were detected in all date syrup extracts. p-Coumaric acid was the major compound of all date syrup extracts, representing 49.223-63.397%. The antioxidant activity of date syrup was evaluated by various antioxidant assays, including total antioxidant, DPPH scavenging test, FRAP, hydrogen peroxide scavenging activity and metal chelating activity.Results showed that the date syrup prepared after extraction with pectinase and cellulase mixture gave the lowest phenolic and flavonoid contents. For same variety, date syrup prepared after extraction with pectinase and cellulase mixture gave the highest carotenoids amounts. The antioxidant activity, determined by several methods, was significantly affected by the extraction method as well as date varieties. In fact, the date syrup prepared after extraction with pectinase and cellulase mixture gave the lowest antioxidant activity. A good correlation between the antioxidant activity and total phenolic content and flavonoid was observed. The discovery of our research is very important to scientists as well as to the fruit-processing industry to produce juice and syrup with high antioxidant activity. © 2012 Elsevier B.V. [less ▲]

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See detailThe effect of processing on inflammatory markers in induced sputum.
Louis, Renaud ULg; Shute, J.; Goldring, K. et al

in European Respiratory Journal (1999), 13(3), 660-7

The effects of the mucolytic agent, dithioerythritol (DTE), and the temperature at which sputum processing is conducted on cellular and biochemical markers in induced sputum was assessed. Samples from ... [more ▼]

The effects of the mucolytic agent, dithioerythritol (DTE), and the temperature at which sputum processing is conducted on cellular and biochemical markers in induced sputum was assessed. Samples from healthy and atopic asthmatic subjects were treated with either DTE or phosphate-buffered saline (PBS) at 22 or 37 degrees C and compared for cell counts and concentrations of histamine, tryptase, eosinophil cationic protein (ECP), free interleukin (IL)-8, immunoglobulin (Ig)A, IL-8/IgA complexes and secretory component (SC). In addition, the influence of DTE on in vitro mediator release from blood eosinophils, basophils and bronchoalveolar lavage (BAL) mast cells was studied. Processing with DTE improved cytospin quality and increased the cell yield and measurable ECP, tryptase, IgA and SC, but reduced levels of histamine in PBS-treated samples and had no effect on IL-8. Cell counts or mediator levels were similar when sputum was processed at 22 or 37 degrees C, even though DTE induced blood basophils and BAL mast cells to release histamine at 37 degrees C. In spiking experiments, recovery of added ECP, tryptase, total IL-8 and histamine from sputum was similar in DTE- and PBS-processed sputum, but reduced for free IL-8 in PBS-treated samples. In conclusion, dithioerythritol improves cell and mediator recovery without causing cell activation when sputum processing is conducted at room temperature. The extent of recovery depends on the mediator studied. [less ▲]

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See detailEffect of prolactin on alpha and beta chloride cells in the gill epithelium of the saltwater adapted tilapia " Oreochromis niloticus"
Pisam, B.; Auperin, B.; Prunet, P. et al

in Anatomical Record (1993), 235

Tilapia (Oreochromis niloticus), 21 g average body weight, were divided into two groups. A group was maintained in fresh water, whereas another group was adapted for 2 weeks to 20% salt water. Among the ... [more ▼]

Tilapia (Oreochromis niloticus), 21 g average body weight, were divided into two groups. A group was maintained in fresh water, whereas another group was adapted for 2 weeks to 20% salt water. Among the latter, fishes were injected every 2 days for a week with tilapia prolactin (ti-PRL I). Gills were prepared for electron microscopy in order to determine the types and surface areas of chloride cells in each experimental condition. Two types of chloride cells, the alpha and beta cells were easily distinguished on the basis of their location and ultrastructural features in the gills of freshwater fishes, while only one type of cell, the saltwater alpha cells presumably derived from the transformation of the freshwater alpha cells, were encountered in saltwater adapted animals. After PRL injection of saltwater adapted fishes, small chloride cells, which displayed ultrastructural features similar to those of beta cells in freshwater tilapia, reappeared in interlamellar regions of the gills. In the same experimental conditions, the voluminous saltwater alpha cells showed a tendency to resume ultrastructural features more characteristic of the freshwater alpha cells from which they were derived. These observations tend to indicate that prolactin behaves as a "freshwater adapting hormone" and that beta cells are specifically involved in fish adaptation to freshwater living conditions. [less ▲]

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See detailEffect of prolonged exercise on neutrophil myeloperoxidase secretion
Bury, Thierry ULg; PIRNAY, Freddy ULg

in International Journal of Sports Medicine (1995)

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See detailEffect of propofol and sevoflurane on coughing in smokers and non-smokers awakening from general anaesthesia at the end of a cervical spine surgery.
Hans, Pol ULg; Marechal, Hugues ULg; Bonhomme, Vincent ULg

in British Journal of Anaesthesia (2008), 101(5), 731-7

BACKGROUND: Coughing during emergence from general anaesthesia may be detrimental, particularly after cervical spine surgery. We compared the effect of propofol or sevoflurane anaesthesia on the incidence ... [more ▼]

BACKGROUND: Coughing during emergence from general anaesthesia may be detrimental, particularly after cervical spine surgery. We compared the effect of propofol or sevoflurane anaesthesia on the incidence and severity of coughing during recovery in patients undergoing cervical spine surgery via an anterior approach. As a secondary aim, we also evaluated the influences of smoking and estimated residual anaesthetic agent concentrations on coughing. METHODS: Thirty-four patients were enrolled in a randomized prospective, double-blind study to receive either propofol (PPF) or sevoflurane (SEVO) for maintenance of anaesthesia. The decision to perform tracheal extubation was based on specified criteria, including resumption of spontaneous respiration and consciousness. During emergence from anaesthesia and extubation, coughing was observed and graded at predefined times. RESULTS: The incidence of severe coughing was higher in the SEVO group than in the PPF group (59% and 6%, respectively), and also in smokers than in non-smokers (50% and 17%, respectively). The peak incidence of coughing was at tracheal extubation. The probability of coughing was influenced by the estimated residual concentration of anaesthetic agents at extubation, except for smokers in the SEVO group who were at the highest risk of coughing. CONCLUSIONS: The incidence of coughing after cervical spine surgery when tracheal extubation is performed according to clinical criteria is lower after propofol anaesthesia compared with sevoflurane anaesthesia. Smokers are at increased risk of coughing, independently of the type of anaesthesia maintenance. Higher residual concentrations of anaesthetic agents decrease the probability of coughing, except for smokers anaesthetized with sevoflurane. [less ▲]

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See detailEffect of Propofol on in Vitro Lipid Peroxidation Induced by Different Free Radical Generating Systems: A Comparison with Vitamin E
Hans, Pol ULg; Deby, Christiane ULg; Deby-Dupont, G. et al

in Journal of Neurosurgical Anesthesiology (1996), 8(2), 154-8

Propofol has been reported to have antioxidant properties and to inhibit lipid peroxidation. In this study, we examined the ability of propofol to inhibit lipid peroxidation induced by three free radical ... [more ▼]

Propofol has been reported to have antioxidant properties and to inhibit lipid peroxidation. In this study, we examined the ability of propofol to inhibit lipid peroxidation induced by three free radical systems (hydroxyl, ferryl, and oxo-ferryl radicals), and we compared the effect of propofol with that of vitamin E, an endogenous antioxidant. Lipid peroxidation was induced by exposing a linoleic acid emulsion to either water gamma radiation, a ferrous iron-ascorbate solution, or human hemoglobin, generating the hydroxyl, ferryl, and oxo-ferryl radicals, respectively. Each experiment was performed in triplicate with and without propofol or vitamin E at concentrations between 10(-5) and 10(-4) M. Lipid peroxidation was quantified by gas chromatography measurement of the pentane released (nmoles) from lipid decomposition. In each condition, a significant dose-response relationship was found between the release of pentane and the concentration of either propofol or vitamin E. The antioxidant activities of both agents were similar but significantly higher against the hydroxyl than the ferryl and oxo-ferryl radicals. The study suggests that propofol could be beneficial as an anesthetic or sedative drug in patients presenting pathologies associated with free radical reactions. [less ▲]

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See detailEffect Of Propylene Glycol Supplementation Around Parturition On Milk Yield, Reproduction Performance And Some Hormonal And Metabolic Characteristics In Dairy Cows
Formigoni, A.; Cornil, Mc.; Prandi, A. et al

in Journal of Dairy Research (1996), 63(1),

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See detailEffect of Prostaglandins Pge2 and Pgf Alpha 2 on the Mean Plaque Size of Bovine Herpesvirus 1
Thiry, Etienne ULg; Mignon, Bernard ULg; Thalasso, F. et al

in Annales de Recherches Vétérinaires = Annals of Veterinary Research (1988), 19(4), 291-293

The effect of prostaglandins PGE2 and PGF alpha 2 on infectious bovine rhinotracheitis (IBR) virus (bovine herpesvirus 1; BHV-1) was studied by using the measurement of the mean size of plaques produced ... [more ▼]

The effect of prostaglandins PGE2 and PGF alpha 2 on infectious bovine rhinotracheitis (IBR) virus (bovine herpesvirus 1; BHV-1) was studied by using the measurement of the mean size of plaques produced in cell culture by IBR/Cu5 strain. Three concentrations (0.1, 1 and 10 micrograms/ml) of prostaglandins, PGE2 and PGF alpha 2 were used. Each prostaglandin provoked an increase in the mean plaque size when compared to control plaques, at the concentrations 1 and 10 micrograms/ml for PGE2 and 10 micrograms/ml for PGF alpha 2. [less ▲]

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See detailEffect of protective compounds on the survival, electrolyte leakage and lipid degradation of freeze-dried Weissella paramesenteroides LC11 during storage.
Yao, Amenan Anastasie ULg; Wathelet, Bernard ULg; Thonart, Philippe ULg

in Journal of Microbiology and Biotechnology (2009), 19(8), 810-817

The effect of cryoprotectants (maltodextrin+glycerol) and cryoprotectants+antioxidant [ascorbic acid and/or butylated hydroxytoluene (BHT)] mixtures on the survival, electrolyte leakage, and lipid ... [more ▼]

The effect of cryoprotectants (maltodextrin+glycerol) and cryoprotectants+antioxidant [ascorbic acid and/or butylated hydroxytoluene (BHT)] mixtures on the survival, electrolyte leakage, and lipid degradation of freeze-dried Weissella paramesenteroides LC11 during storage was investigated and compared with that of the control (cells without additives) over a 90-day storage period at 4 or 20 degrees in glass tubes with water activity (a(w)) of 0.23. The survival, electrolyte leakage, and lipid degradation were evaluated through colony counts, electrical conductivity, and thiobarbituric acid reactive substances (TBARS) content, respectively. The fatty acids composition was determined by gas chromatography, in both the total lipid extract and the polar lipid fraction, and compared with that of the control after the 90-day storage period. As the storage proceeded, increases in leakage value and TBARS content, as well as a decrease in viability, were observed. After 90 days of storage, the major fatty acids found in both the total lipid extract and the polar lipid fraction were palmitic (16:0), palmitoleic (16:1), stearic (18:0), oleic (18:1), linoleic (18:2), and linolenic (18:3) acids. The survival, leakage value, TBARS content and 18:2/16:0 or 18:3/16:0 ratio were the greatest for the protected strain held at 4 degrees . Cells with the cryoprotectants+BHT mixture showed the highest percentage of survival and 18:2/16:0 or 18:3/16:0 ratio in both lipid extracts, as well as the lowest leakage value and TBARS content after the 90-day storage period. Drying cells with the cryoprotectants+BHT mixture considerably slowed down polar lipid degradation and loss of membrane integrity, resulting in improved viability during storage. [less ▲]

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See detailEffect of protein-supplemented fasting on metabolic and hormonal responses to epinephrine infusion in obese subjects.
Scheen, André ULg; Cession-Fossion, A.; Scheen, Myriam ULg et al

in Hormone & Metabolic Research (1982), 14(5), 240-5

The present study aimed at investigating the effects of an epinephrine (EPI) intravenous infusion (10 micrograms/min for 30 min) in normal subjects and in obese patients before and after 13 days of ... [more ▼]

The present study aimed at investigating the effects of an epinephrine (EPI) intravenous infusion (10 micrograms/min for 30 min) in normal subjects and in obese patients before and after 13 days of protein-supplemented fasting (PSF, 70 g protein/day). Blood glucose, plasma free fatty acids (FFA), lactate, insulin (IRI) and glucagon were determined before, during (15, 30 min) and after (+30 and +60 min) the EPI infusion. 1. When compared to lean control subjects, obese patients exhibited a less marked rise in blood glucose and a more important increase in plasma FFA, EPI infusion decreased IRI plasma levels in normals but not in the obese. Plasma glucagon was lower in the obese under basal conditions and their A cell reactivity to EPI was clearly reduced. 2. Comparison of the results obtained in obese patients before and after PSF revealed that EPI-induced blood glucose rise was not altered despite lower basal values after PSF. Plasma lactate response was impaired, probably because of the depletion in muscle glycogen. Reduction in basal plasma IRI was associated with a significantly higher FFA mobilization. Abnormally low basal EPI-stimulated glucagon concentrations persisted after PSF despite concomitant reductions in blood glucose and plasma IRI. [less ▲]

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