References of "Melo de Sousa, Noelita"
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See detailThe use of blood pepsinogen as a biomarker of the integrity of the porcine gastric mucosa : A review. Part 1: History, physiopathology of gastric mucosa and different forms of pepsinogens
Banga-Mboko, Henri; Godeau, Jean-Marie ULg; Drion, Pierre ULg et al

in Annales de Médecine Vétérinaire (2002), 146(6), 339-346

Because the history is defined as the account of the passed events, this manuscript is an Update research on swine pepsinogens since their discovery by Theodor Schwann. Progress was particularly made in ... [more ▼]

Because the history is defined as the account of the passed events, this manuscript is an Update research on swine pepsinogens since their discovery by Theodor Schwann. Progress was particularly made in the localization within the gastric mucosa membrane of the specialized cells involved in the secretion of pepsinogens. These progresses also included identification, isolation purification and the classification of the zymogens. [less ▲]

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See detailAspartic proteinase members secreted by the ruminant placenta: Specificity of three radioimmunoassay systems for the measurement of pregnancy-associated glycoproteins
Perenyi, Z. S.; Szenci, O.; Drion, Pierre ULg et al

in Reproduction in Domestic Animals (2002), 37(6), 324-329

Pregnancy-associated glycoproteins (PAGs) isolated from the placenta of various ruminant species are enzymatically inactive members of the aspartic proteinase family. The measurement of these proteins in ... [more ▼]

Pregnancy-associated glycoproteins (PAGs) isolated from the placenta of various ruminant species are enzymatically inactive members of the aspartic proteinase family. The measurement of these proteins in the maternal blood can be a good indicator of the presence of a live embryo. As certain aspartic proteinases are present in biological fluids in physiological and pathological conditions at various concentrations, it was necessary to determine the specificity of three radioimmunoassay (RIA) systems currently used for the detection of PAG molecules. Commercially available members of the aspartic proteinase family like pepsinogen, pepsin, chymosin, rennet, cathepsin D and renin were tested in a wide concentration range (10 ng/ml - 1 mg/ml). Pepsinogen cross-reacted in RIA 1, RIA 2 and RIA 3 over 1 mg/ml, 50 microg/ml and 500 microg/ml concentrations, respectively. In the presence of pepsin, cross-reaction was observed in RIA 1, RIA 2 and RIA 3 over 1 mg/ml, 500 microg/ml and 1 mg/ml concentrations, respectively. Chymosin and rennet could cross-react in RIA 2 and RIA 3, while renin and cathepsin D did not decrease the binding of the tracer to antisera more, than that of the minimal detection limit. As the plasma/serum concentrations of the examined aspartic proteinases reported in the literature were outside the concentration range where cross-reaction was observed, it can be concluded that these RIA systems were specific for the detection of PAGs in biological fluids. [less ▲]

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See detailMicrosequencing of three pregnancy-associated glycoproteins isolated from sheep placenta
El Amiri, Bouchra; Remy, Benoit; Melo de Sousa, Noelita ULg et al

in Proceedings of the 6e Journée de Rencontre Bioforum (2001)

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See detailPlacental proteins in ruminants: biochemical, physiological and zootechnical aspects
Melo de Sousa, Noelita ULg; Figueiredo, J. R.; Beckers, Jean-François ULg

in Renaville, R.; Burny, A. (Eds.) Biotechnology in Animal Husbandry (2001)

During the last decade, investigations were carried out by several research groups in order to characterize proteins or glycoproteins synthesized in the ruminant placenta. Recently, as results of this ... [more ▼]

During the last decade, investigations were carried out by several research groups in order to characterize proteins or glycoproteins synthesized in the ruminant placenta. Recently, as results of this research, a large family of pregnancy-associated glycoproteins (PAGs) was discovered. Using molecular biology techniques, they were found to be members of the superfamily of the aspartic proteinases which also contains pepsinogen, chymosin, renin, beta-secretase, cathepsin D and E etc. Synthesized in the mono and/or binucleate cells of the trophoblast, some forms of PAG seem to lack of proteinase activity. It is likely they are synthesized together with molecules involved in the tissue remodeling of the placenta. Their release in large quantities into the maternal blood circulation results in measurable plasma concentrations. Thanks to international collaborative studies, we have shown that PAG levels are a good indicator of feto-placental well-being and that sharp decreases in PAG levels occur just before pregnancy failure in cows and in goats. In some countries, the PAG assay is available for veterinarians in the regional laboratories responsible for animal health including immunodiagnosis for brucellosis, IBR, BVD, CAEV, VISNA-MEDI etc. [less ▲]

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See detailChorioví gonadotropin a specifický glykoprotein u březích přežvýkavcŭ
Melo de Sousa, Noelita ULg; Figueiredo, J. R.; El Amiri, Bouchra et al

in Proceedings of the 3rd Central European Buiatric Congress (2001)

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See detailIdentification of pregnancy-associated glycoprotein 1 (PAG-1) in zebu (Bos indicus) placenta
Melo de Sousa, Noelita ULg; Remy, Benoit; El Amiri, Bouchra et al

in Theriogenology (2001), 55(1), 327

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See detailRadioimmunoassay of pregnancy-associated glycoprotein 1 (PAG1) isolated from zebu (Bos indicus) placenta: preliminary results
Melo de Sousa, Noelita ULg; Sulon, Joseph ULg; Remy, Benoit et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2001), 5(1), 24-25

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See detailAbility of three different antisera to recognize pregnancy-associated glycoproteins in heifers during the first fifty days of gestation
Perenyi, Zsolt; Desbuleux, Henri; Sulon, Joseph ULg et al

in Proceedings: 17th Annual Meeting AETE (2001)

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See detailIsolation and partial purification of pregnancy-associated glycoproteins from sheep placenta
El Amiri, Bouchra; Remy, Benoit; Sulon, Joseph ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2001), 5(1), 23-24

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See detailProfils de la progestérone des vaches zébu ‘Azawak’ et taurin ‘Gourunsi’ après induction de l’œstrus aux progestagènes combinés à la prostaglandine
Zongo, M.; Pitala, W.; Boly, H. et al

in Tropicultura (2001), 19(3), 131-134

Un dosage radioimmunologique a été utilisé pour mesurer les concentrations de progestérone chez les zébus “Azawak” (Bos indicus, n = 6) et taurins Gourunsi (Bos taurus, n = 5) après induction de l'œstrus ... [more ▼]

Un dosage radioimmunologique a été utilisé pour mesurer les concentrations de progestérone chez les zébus “Azawak” (Bos indicus, n = 6) et taurins Gourunsi (Bos taurus, n = 5) après induction de l'œstrus. Les observations ont été menées sur 11 vaches non gestantes (groupe I composé de 3 zébus Azawak et 3 taurins Gourunsi; groupe II composé de 3 zébus Azawak et 2 taurins Gourunsi), soumises à un traitement hormonal reposant sur l’administration d’un implant de progestagène, d’une injection de prostaglandine F2alpha et, pour une partie des femelles (groupe I), d’une injection de PMSG. Les implants ont été placés sous la peau de la face externe de l’oreille et maintenus pendant une période de 10 jours. Au 8e jour du traitement, les femelles ont reçu une injection intramusculaire de prostaglandine F2 (5 mg/100 kg) et au 10e jour, au moment du retrait, une injection de PMSG (400 UI/300 kg de poids vif) a été pratiquée sur les animaux du groupe I. Chez les taurins Gourunsi et chez les zébus Azawak ayant reçu l’injection de PMSG, le traitement a été suivi d’un œstrus dans 2 cas sur 3. Chez les animaux appartenant au groupe II, l’œstrus ne fut observé chez aucun taurin et seulement chez 1 des 3 zébus. Les concentrations de progestérone mesurées au cours des phases lutéales qui ont suivi sont restées faibles chez les taurins Gourunsi. Chez les zébus Azawak, les concentrations se sont révélées plus élévées chez les femelles ayant reçu l’injection de PMSG (6,0 +/- 1,2 ng/ml) que chez celles qui n’avaient pas reçu (3,2 +/- 0,8 ng/ml). [less ▲]

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See detailInsémination artificielle des vaches ‘Azawak’ et taurin ‘Gourunsi’ au Burkina Faso
Zongo, M.; Boly, H.; Sawadogo, L. et al

in Tropicultura (2001), 19(2), 75-78

La synchronisation des chaleurs et la fertilité en insémination artificielle des zébus ‘Azawak’ (Bos indicus, n = 66) et des taurins ‘Gourunsi’ (Bos taurus, n = 20) ont été appréciées en zone périurbaine ... [more ▼]

La synchronisation des chaleurs et la fertilité en insémination artificielle des zébus ‘Azawak’ (Bos indicus, n = 66) et des taurins ‘Gourunsi’ (Bos taurus, n = 20) ont été appréciées en zone périurbaine soudano-sahélienne de Ouagadougou au Burkina Faso. La synchronisation a été effectuée avec des implants sous cutanés de progestagène placés sous la peau de l’oreille pendant 10 jours. Le traitement a été complété par l’injection de prostaglandine F2 et de PMSG, respectivement au 8ième et au 10ième jours de la pose de l’implant. Le taux d’œstrus induits observés par l’éleveur était de 94,2% dans les 48 heures qui suivaient le retrait de l'implant. Il variait significativement (P<0,05) selon les groupes zébus ‘Azawak’ et taurins ‘Gourunsi’ (100% et 75%, respectivement). Les taux de fertilité, déterminés par palpation rectale chez les zébus ‘Azawak’ et les taurins ‘Gourunsi’, ont été respectivement 24,2% et 10%. La fertilité a varié selon le moment de l’insémination: lorsque les femelles étaient inséminées 36 à 48 heures après le retrait de l’implant, les taux de fertilité ont été faibles (0 à 12,5% chez les taurins ‘Gourunsi’ et les zébus ‘Azawak’, respectivement). Par ailleurs, lorsque les inséminations étaient réalisées 24 à 36 heures après le retrait de l’implant, les taux de fertilité ont été respectivement de 50% et 42,3%. [less ▲]

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See detailProfil de la LH a l’oestrus induit des taurin Gourunsi et zebu Azawak.
Zongo, M.; Pitala, W.; Boly, H. et al

Scientific conference (2001)

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See detailPregnancy-associated glycoprotein detection by RIA in pregnant buffalo cows (Bubalus bubalis)
Debenedetti, A.; Melo de Sousa, Noelita ULg; Sulon, Joseph ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2001), 5(suppl), 62

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See detailRadioimmunoassay of porcine pepsinogen
Banga-Mboko, Henri; Sulon, Joseph ULg; Closset, Jean ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2001), 5(1), 25-26

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See detailIsolation of the pregnancy-associated glycoprotein 1 (PAG-1) from zebu (Bos indicus) placenta.
Melo de Sousa, Noelita ULg; Remy, B.; El Amiri, B. et al

in Proceedings of the 16th Scientific Meeting of the European Embryo Transfer Association. (2000)

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See detailPregnancy-associated glycoprotein concentrations in N’Dama followed several months after parturition and maintained with a fertile bull.
Drame, D.; Zongo, M.; Melo de Sousa, Noelita ULg et al

in Proceedings of the 16th Scientific Meeting of the European Embryo Transfer Association (2000)

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See detailPregnancy-associated glycoproteins (PAG) in Bos taurus taurus and Bos taurus indicus.
El Amiri, B.; Melo de Sousa, Noelita ULg; Perenyi, Z. et al

in Theriogenology (2000), 53

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See detailComparison of native and inherited immunoglobulins in rabbits immunized against bovine pregnancy-associated glycoprotein-1 (boPAG-1).
Melo de Sousa, Noelita ULg; Banga-Mboko, H.; El Amiri, B. et al

in Pflügers Archiv : European Journal of Physiology (2000), 440

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See detailNormal ongoing pregnancy in rabbit immunised against bovine pregnancy-associated glycoprotein-1 (boPAG-1).
Banga-Mboko, H.; Melo de Sousa, Noelita ULg; El Amiri, B. et al

in Pflügers Archiv : European Journal of Physiology (2000), 440

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See detailInfluences potentielles des hormones de la gestation sur l’état immunitaire de la mère, conséquences diagnostiques
Melo de Sousa, Noelita ULg; Figueiredo, J. R.; Derivaux, J. et al

in Recueil de l'Association pour l’Etude de la Reproduction Animale (2000)

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