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See detailPostmortem Investigations on Winter Stranded Sperm Whales from the Coasts of Belgium and the Netherlands
Jauniaux, Thierry ULg; Brosens, L.; Jacquinet, E. et al

in Journal of Wildlife Diseases (1998), 34(1), 99-109

During winter 1994-95, four and three sperm whales (Physeter macrocephalus) were stranded along the Belgian and the Dutch coasts, respectively. Necropsies and tissue samplings were collected 24 hrs post ... [more ▼]

During winter 1994-95, four and three sperm whales (Physeter macrocephalus) were stranded along the Belgian and the Dutch coasts, respectively. Necropsies and tissue samplings were collected 24 hrs post mortem. Lesions on several whales included round and linear skin scars, ventral skin abrasions, acute skin ulcers, acute ulcerative stomatitides, acute to chronic external otitides, and passive visceral congestion. In addition, these sperm whales appeared to be debilitated with severe weight deficit, had blubber thickness reduction, the absence of abdominal fat, and the intestinal tracts were almost empty. Three categories of lesions and their possible relation with the stranding were evaluated. Cutaneous scars observed on the seven whales appeared to have no relation with the stranding. The poor body condition and acute integument ulcerative lesions were present before the stranding. Ventral skin abrasions and visceral passive congestion were caused by the strandings. Absence of food in the alimentary tracts, evidence of weight loss and blubber thickness reduction were compatible with an extended presence of the sperm whales in the North Sea, where adequate food is not available. This might lead to progressive weakness, predisposing the animals to secondary pathogens such as viral diseases. Finally, the coastal configuration of the southern North Sea makes it a trap for sperm whales which have entered the area during their wanderings. [less ▲]

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See detailPostmortem Measurement of Cadaveric VOCs in Human Internal Cavity Gases
Stefanuto, Pierre-Hugues ULg; Varlet, V; Grabherr, S et al

Conference (2014, May 20)

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See detailPostnatal and adult exposure to estradiol differentially influences adult neurogenesis in the main and accessory olfactory bulb of female mice.
Veyrac, Alexandra; Bakker, Julie ULg

in FASEB Journal (2011), 25(3), 1048-57

Neurons incorporated into the adult main olfactory bulb (MOB) and accessory olfactory bulb (AOB) derive from the subventricular zone (SVZ). Despite some recent studies on the role of olfactory ... [more ▼]

Neurons incorporated into the adult main olfactory bulb (MOB) and accessory olfactory bulb (AOB) derive from the subventricular zone (SVZ). Despite some recent studies on the role of olfactory neurogenesis in sociosexual behaviors mediated by hormones, data on the implication of estrogens are still lacking. Taking advantage of female aromatase-knockout (ArKO) mice, which are unable to produce estradiol across their life span, we investigated the role of estradiol exposure during early postnatal and adult periods on adult neurogenesis in the MOB and AOB. We found that proliferation of progenitor cells in the adult female SVZ was not influenced by estradiol. However, whereas adult exposure to estradiol influences the turnover of MOB newborn neurons, the survival of those in the AOB depends on exposure to estradiol during the early postnatal period. Finally, based on their expression of Zif268, we showed that newborn neurons in the MOB responded to sociosexual odors, albeit to a lesser extent in ArKO females, suggesting a contribution of estradiol during the early postnatal period to this response. Together, these results suggest that the survival and functional integration of newborn neurons in the adult female MOB and AOB are differentially influenced by estrogens from the early postnatal period to adulthood. [less ▲]

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See detailThe postnatal demasculinization of sexual behavior in the Japanese quail (Coturnix coturnix japonica).
Schumacher, M.; Balthazart, Jacques ULg

in Hormones and Behavior (1984), 18(3), 298-312

Three experiments were performed to analyze the time course of demasculinization in the Japanese quail and to test the activating and organizing effects of estradiol (E2) in adult sexually active birds ... [more ▼]

Three experiments were performed to analyze the time course of demasculinization in the Japanese quail and to test the activating and organizing effects of estradiol (E2) in adult sexually active birds. In Experiment 1, males and females were castrated at the age of 1 day or 1, 2, 4, and 6 weeks and treated as adults with testosterone (T). The age of castration had no effect on behavior and morphology in males. Plasma gonadotrophins (LH and FSH) were, however, higher in males castrated at or before than in those castrated after 2 weeks of age. This suggests that postnatal testicular secretions have organizing effects on the pituitary activity. Females which were castrated before 1 week of age were less sensitive to the activating effects of T than males, but were not fully demasculinized. The demasculinization of different reproductive characteristics such as male sexual behavior, cloacal gland size, and weight of the syringeal muscles is achieved in females at different times posthatching. In Experiment 2, castration of male and female quail at the ages of 4 days or 4 weeks confirmed that postnatal ovarian secretions contribute to the full behavioral and morphological demasculinization of females. It is easier to elicit mounting in T-treated females when they are tested in their home cage instead of a test arena. This difference was not observed in males. During Experiment 3, it was impossible to demasculinize sexually active adult males or females by treatment with Silastic implants of E2. E2 did not maintain sexual behavior in ovariectomized females showing male sexual behavior when treated with T but maintained the behavior in males. [less ▲]

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See detailPostnatal growth assessment and charts for premature infants.
SENTERRE, Thibault ULg

Conference (2013, February)

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See detailPostnatal growth restriction may be limited in very-low-birth-weigth infants.
Senterre, Thibault ULg; Habibi, Fakher; Rigo, Jacques ULg

in Journal of Maternal-Fetal & Neonatal Medicine (2010, May), 23(S1), 325-326

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See detailPostnatal maturation of intestine and spleen, induced by polyamines in suckling rats
Peulen, Olivier ULg; Deloyer, Patricia; Dandrifosse, Guy ULg

in Morgan, D.; Bauer, F.; White, A. (Eds.) COST 917 Biologically active amines in food. Volume VII (2005)

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See detailPostnatal NG2 proteoglycan-expressing progenitor cells are intrinsically multipotent and generate functional neurons.
Belachew, Shibeshih ULg; Chittajallu, Ramesh; Aguirre, Adan A. et al

in Journal of Cell Biology (2003), 161(1), 169-86

Neurogenesis is known to persist in the adult mammalian central nervous system (CNS). The identity of the cells that generate new neurons in the postnatal CNS has become a crucial but elusive issue. Using ... [more ▼]

Neurogenesis is known to persist in the adult mammalian central nervous system (CNS). The identity of the cells that generate new neurons in the postnatal CNS has become a crucial but elusive issue. Using a transgenic mouse, we show that NG2 proteoglycan-positive progenitor cells that express the 2',3'-cyclic nucleotide 3'-phosphodiesterase gene display a multipotent phenotype in vitro and generate electrically excitable neurons, as well as astrocytes and oligodendrocytes. The fast kinetics and the high rate of multipotent fate of these NG2+ progenitors in vitro reflect an intrinsic property, rather than reprogramming. We demonstrate in the hippocampus in vivo that a sizeable fraction of postnatal NG2+ progenitor cells are proliferative precursors whose progeny appears to differentiate into GABAergic neurons capable of propagating action potentials and displaying functional synaptic inputs. These data show that at least a subpopulation of postnatal NG2-expressing cells are CNS multipotent precursors that may underlie adult hippocampal neurogenesis. [less ▲]

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See detailPostnatal ulegyria due to prolonged postoperative status epilepticus
Misson, Jean-Paul ULg; Robbe-Dechamps, M.; Pauly, F. et al

in 3rd biennal Meeting of European Society of Magnetic Resonance in Pediatric Neurology (1993)

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See detailPostoperative bleeding and autotransfusion
ERPICUM, Marie ULg; BLAFFART, Francine ULg; DEFRAIGNE, Jean ULg et al

Poster (2012, November 20)

Bleeding in the postoperative period of cardiac surgery is not rare. Mediastinal bleedings could potentially be saved with a cell salvage device. This practice may contribute to decreased allogeneic ... [more ▼]

Bleeding in the postoperative period of cardiac surgery is not rare. Mediastinal bleedings could potentially be saved with a cell salvage device. This practice may contribute to decreased allogeneic transfusion. This study explores the effectiveness of a chest drainage system combined with a cell salvage option during the postoperative period of cardiac surgery in patients at high risk of bleeding [less ▲]

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See detailPostoperative bleeding and autotransfusion
ERPICUM, Marie ULg; BLAFFART, Francine ULg; DEFRAIGNE, Jean ULg et al

Poster (2012, September 29)

Introduction: Bleeding in the postoperative period of cardiac surgery is not infrequent. Mediastinal bleeding is usually collected in a chest drainage system and discarded. Nevertheless, this blood could ... [more ▼]

Introduction: Bleeding in the postoperative period of cardiac surgery is not infrequent. Mediastinal bleeding is usually collected in a chest drainage system and discarded. Nevertheless, this blood could potentially be managed with a cell salvage device during the first six postoperative hours. This practice is generally performed only in case of a surgical re-exploration for massive bleeding and may contribute to decreased allogeneic transfusion. But in case of postoperative coagulopathy requiring medical treatment, re-exploration is usually postponed and consequently, collected blood is discarded. Therefore, chest drainage systems combined with a cell salvage option could optimize the management of blood losses and transfusions in the postoperative period, regardless of any surgical re-exploration. The aim of this study is to assess the effectiveness of such a system during the postoperative period of cardiac surgery, in patient at high risk of bleeding. Method : During a 6 months period, the CardioPAT® (Haemonetics) device was used in all cardiac surgery patients at high risk of postoperative bleeding. The following data were prospectively collected: hemoglobin level, bleeding volume, volume of autologous washed red blood cell transfused by the CardioPAT® (WRBC), volume of allogeneic red blood cell (RBC), fresh frozen plasma (FFP) or platelets (PT) transfused and surgical re-exploration. Results : The CardioPAT® was used in 16 patients during the target period. Mean postoperative bleeding volume was 338±337mL after 1 hour and 820±727mL after 6 hours. The cell salvage option was used in 9 (56%) cases and mean WRBC transfused volume was 153±212mL. One patient required surgical re-exploration. All patients transfused by WRBC received previously an allogeneic transfusion (RBC, FFP and/or PT). The hemoglobin level of blood collected in the CardioPAT® device impacted on the delay and the blood volume required for WRBC availability; lower was the hemoglobin level, larger was the volume of blood required to obtain a concentrate of WRBC. Consequently, patients with a very low hemoglobin level were anyway transfused with RBC. Conclusion : The CardioPAT® device can reduce allogeneic blood transfusion after cardiac surgery in patients at high risk of bleeding. It gives time to treat coagulopathy, leading to a decrease of surgical re-exploration. However, a device with a larger reservoir and with a flexible processing speed would be more accurate in case of major haemorrhage. Systematic utilisation of this device at the time of FFP and/or PT transfusion is a safe but expensive strategy. It seems more accurate to use this device in a permissive bleeding strategy, waiting for the spontaneous coagulation recovery of the patient, in the first postoperative hours. [less ▲]

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See detailPostoperative care after caesarean section
Brichant, Jean-François ULg

Conference (2008, May 31)

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See detailPostoperative Changes in Lipid Profile: Their Relations with Inflammatory Markers and Endocrine Mediators
Canivet, Jean-Luc ULg; Damas, Pierre ULg; Buret, J. et al

in Acta Anaesthesiologica Belgica (1989), 40(4), 263-8

ive changes in plasma lipid profile have been studied in six patients undergoing aortobifemoral bypass. The second day after surgery, significant changes were: decreased levels of high density lipoprotein ... [more ▼]

ive changes in plasma lipid profile have been studied in six patients undergoing aortobifemoral bypass. The second day after surgery, significant changes were: decreased levels of high density lipoprotein (HDL) cholesterol (by 55%), non HDL cholesterol (by 60%) phospholipid (by 50%), pre-beta-lipoprotein (by 70%), beta-lipoprotein (by 50%), apolipoprotein A1 (by 60%) and apolipoprotein B (by 55%). The magnitude of these changes correlated positively with serum levels of transferrin and negatively with serum levels of C-reactive protein. Triglyceride levels also showed a significant decrease (by 60%) while free fatty acids increased by 70%. Changes in triglyceride levels were not correlated with serum transferrin and C-reactive protein but showed a significant negative correlation with insulin levels. Our results suggest that both inflammatory and endocrine mediators are likely implicated in the postoperative changes in lipid profile. [less ▲]

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See detailPostoperative respiratory problems in morbidly obese patients.
Hans, Grégory ULg; Lauwick, Séverine ULg; Kaba, Abdourahmane ULg et al

in Acta Anaesthesiologica Belgica (2009), 60(3), 169-75

Morbid obesity results in a restrictive pulmonary syndrome including decreased functional residual capacity. General anaesthesia further decreases functional residual capacity, and consequently alters gas ... [more ▼]

Morbid obesity results in a restrictive pulmonary syndrome including decreased functional residual capacity. General anaesthesia further decreases functional residual capacity, and consequently alters gas exchanges more profoundly in morbidly obese patients than in nonobese patients. Moreover, these changes persist longer during the postoperative period, rendering obese subjects vulnerable to postoperative respiratory complications. In this review, we present postoperative measures improving respiratory function of these patients. Whether these measures affect outcome remains however unknown. Patients suffering from obstructive sleep apnoea syndrome deserve special considerations that are briefly described. Finally, the algorithm of the postoperative respiratory management of morbid obese patients used in our institution is provided. [less ▲]

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See detailPostoperative sialadenitis with chronic brachial plexopathy
Reuter, Gilles; Racaru, Tudor ULg; Nguyen khac, Minh-Tuan et al

Poster (2010, March 20)

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See detailPostoperative spirometry after laparoscopy for lower abdominal or upper abdominal surgical procedures.
Joris, Jean ULg; Kaba, Abdourahmane ULg; Lamy, Maurice ULg

in British Journal of Anaesthesia (1997), 79(4), 422-6

In this prospective study, we have compared women undergoing laparoscopic cholecystectomy, laparoscopic gynaecological surgery and laparoscopic minor gynaecological procedures (diagnostic, tubal, ligation ... [more ▼]

In this prospective study, we have compared women undergoing laparoscopic cholecystectomy, laparoscopic gynaecological surgery and laparoscopic minor gynaecological procedures (diagnostic, tubal, ligation) (n = 10 in each group) to determine if lower abdominal laparoscopy results in less postoperative pulmonary dysfunction than upper abdominal laparoscopy. Pulmonary testing was performed before operation, and 3 and 6 h after operation, on the first and second days after surgery. After operation, a significant reduction in forced vital capacity, forced expiratory volume in 1 s and peak expiratory flow rate occurred after laparoscopic cholecystectomy at each time. There were no significant changes after minor gynaecologic laparoscopy, whereas laparoscopic gynaecological surgery resulted in minor pulmonary dysfunction on the day of surgery only. We conclude that postoperative pulmonary function was less impaired after gynaecological laparoscopy than after laparoscopic cholecystectomy. This study suggests that the site of surgery is an important determinant of lung dysfunction after laparoscopy. [less ▲]

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