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Maria Luisa Martinezfrias - One of the best experts on this subject based on the ideXlab platform.
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epidemiology of acephalus Acardius monozygotic twins new insights into an epigenetic causal hypothesis
American Journal of Medical Genetics Part A, 2009Co-Authors: Maria Luisa MartinezfriasAbstract:Apart from a series of 10 acephalus/Acardius (Ac/Ac) cases described from a pathological point of view, and the analysis of a review of published cases, we have been unable to find any epidemiological studies on Ac/Ac. Using data from the Spanish Collaborative Study of Congenital Malformations (ECEMC), we present here what seems to be the first epidemiological analysis of a consecutive series of the Ac/Ac type of monozygotic twins (MZT). Among a total of 2,281,604 consecutive births, 11 cases of Ac/Ac MZT were detected, giving a frequency of 0.48 per 100,000 births. However, we consider the period 1980–1985 as the baseline for our data, as in this period voluntary termination of pregnancy was not possible in Spain, and the frequency of Ac/Ac MZT was 0.49 per 100,000 births. Nonetheless, this frequency should be considered as a minimal estimation. The characteristics of these Ac/Ac cases indicate that they are more frequent in males (sex ratio 2.67). In addition, gestational age in Ac/Ac cases was 2.41 and 3.12 weeks lower than in malformed and control twins, respectively. Similarly, their mothers are 4.54 and 4.68 years younger than mothers of separate malformed and control twins, respectively. To understand the biological basis behind the occurrence of MZT in the context of recent observations, we evaluate the hypothesis that the epigenetic processes involved in the early cleavage of the embryo, and in blastocyst formation during development, may be implicated in twinning. © 2009 Wiley-Liss, Inc.
Daoudou C O G Wilson - One of the best experts on this subject based on the ideXlab platform.
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evaluation de l activite acaricide de quelques biopesticides sur l acarien tarsoneme polyphagotarsonemus latus banks acari tarsonemidae infestant l aubergine gboma solanum macrocarpon l au sud benin
European Scientific Journal ESJ, 2020Co-Authors: Adango Etienne, Onzo Alexis, Daoudou C O G WilsonAbstract:L’acarien tarsoneme, Polyphagotarsonemus latus Banks, est un important ravageur de l’aubergine Gboma (Solanum macrocarpon L.), un legume-feuille de grande consommation au Benin. La gestion de ce ravageur repose fondamentalement sur la lutte chimique avec toutes ses consequences sur la sante et sur l’environnement ; d’ou la necessite de rechercher des solutions alternatives. Ainsi, la performance de trois biopesticides notamment huile de neem (Azadirachta indica A. Juss), extraits aqueux de hyptis (Hyptis suaveolens (L.) Poit, et du faux basilic (Ocimum gratissimum L), a ete testee sur les œufs et adultes de P. latus au laboratoire de paires avec celle de Acarius et Sunpyrifos, deux acaricides chimiques communement utilises au Benin. Aussi, leurs effets sur les densites de population du ravageur et la productivite du Gboma ont-ils ete evalues en plein champ. Au laboratoire, les taux moyens d’eclosion des œufs ont varie significativement entre traitements, allant 36 ± 5% a 80 ± 5% (P < 0,0001). Le plus fort taux d’eclosion a ete enregistre sur le temoin et hyptis tandis que le plus fort d’eclosion a ete enregistre avec Acarius suivi du Sunpyrifos et de l’huile de neem. Les taux de mortalite des adultes de P. latus ont egalement varie significativement entre les differents traitements allant de 43 ± 2% a 100% (P < 0,0001). Les plus faibles mortalites ont ete enregistrees sur le temoin suivi de hyptis tandis que les plus forts taux ont ete enregistres, avec les doubles-doses de Acarius, Sunpyrifos et de l’huile de neem. Au champ, les densites moyennes par feuille des stades mobiles de P. latus ont varie significativement entre traitements, allant de 5,37 ± 0,59 et 2,71 ± 0,37 individus (P < 0,0001) ; les densites les plus fortes ayant ete enregistrees sur le temoin tandis qu’aucune difference statistique n’a ete observee entre les cinq autres traitements. Les plus fortes productivites de Gboma (kg/4 m2 ) ont ete enregistrees avec l’huile de neem (13,65 ± 2,13), Sunpyrifos (11,10 ± 1,66) et Acarius (10,76 ± 1,32). Il s’en deduit qu’en attendant des etudes complementaires, l’huile de neem peut etre recommandee comme alternative aux acaricides chimiques contre P. latus sur les parcelles de Gboma au Sud-Benin. The broad mite, Polyphagotarsonemus latus Banks is a key pest of the nightshade, commonly called Gboma eggplant (Solanum macrocarpon L.), a staple leafy vegetable in Benin. Management of this pest relies on chemical control despite its harmful environmental and sanitary impacts. It urgestherefore to search for alternative methods. In that respect, performances of some biopesticides including neem oil (Azadirachta indica A. Juss), aqueous extracts of Hyptis suaveolens (L.) Poit and of Ocimum gratissimum L. (clove basil), were tested on egg and adult stages of P. latus in laboratory in comparison to those of Acarius and Sunpyrifos, two chemical acaricides commonly used on vegetable farms in Southern Benin. In addition, their effects on the population densities of the pest and on the productivity of Gboma were evaluated in the field. In the laboratory, mean egg hatching rates varied significantly among treatments, ranging from 36 ± 5% to 80 ± 5% (P < 0,0001). The highest hatching rates were recorded with the control and hyptis treatments whereas the lowest hatching rates were recorded with Acarius followed by Sunpyrifos then neem oil treatments. Mortality rates of adult P. latus individuals also varied significantly among treatments, ranging from 43 ± 2% to 100% (P < 0,0001). The lowest mortality rates were recorded on the control followed by hyptis treatments whereas the highest mortalities were recorded with the double-doses of Acarius, Sunpyrifos and neem oil. In the field trials, mean densities of mobile stages of P. latus varied significantly among treatments, ranging from 5,37 ± 0,59 to 2,71 ± 0,37 individus (P < 0,0001). The highest densities were recorded on the control treatment whereas no significant differences were observed among the five other treatmentsThe highest productivities in fresh Gboma leaves on 4 m2 plot were recorded with neem oil (13.65 ± 2.13 kg), Sunpyrifos (11.1 ± 1.66 kg) and Acarius (10.76 ± 1.32 kg). Pending further studies, neem oil may be recommended as an alternative to chemical acaricides for the control of P. latus on Gboma plots in Southern Benin.
Wilson, Daoudou C. O. G. - One of the best experts on this subject based on the ideXlab platform.
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Evaluation De L’activité Acaricide De Quelques Biopesticides Sur L’acarien Tarsonème, Polyphagotarsonemus Latus Banks (Acari : Tarsonemidae) Infestant L’aubergine Gboma (Solanum Macrocarpon L.) Au Sud-Bénin
'European Scientific Institute ESI', 2020Co-Authors: Etienne Adango, Alexis Onzo, Wilson, Daoudou C. O. G.Abstract:L’acarien tarsonème, Polyphagotarsonemus latus Banks, est un important ravageur de l’aubergine Gboma (Solanum macrocarpon L.), un légume-feuille de grande consommation au Bénin. La gestion de ce ravageur repose fondamentalement sur la lutte chimique avec toutes ses conséquences sur la santé et sur l’environnement ; d’où la nécessité de rechercher des solutions alternatives. Ainsi, la performance de trois biopesticides notamment huile de neem (Azadirachta indica A. Juss), extraits aqueux de hyptis (Hyptis suaveolens (L.) Poit, et du faux basilic (Ocimum gratissimum L), a été testée sur les œufs et adultes de P. latus au laboratoire de paires avec celle de Acarius et Sunpyrifos, deux acaricides chimiques communément utilisés au Bénin. Aussi, leurs effets sur les densités de population du ravageur et la productivité du Gboma ont-ils été évalués en plein champ. Au laboratoire, les taux moyens d’éclosion des œufs ont varié significativement entre traitements, allant 36 ± 5% à 80 ± 5% (P < 0,0001). Le plus fort taux d’éclosion a été enregistré sur le témoin et hyptis tandis que le plus fort d’éclosion a été enregistré avec Acarius suivi du Sunpyrifos et de l’huile de neem. Les taux de mortalité des adultes de P. latus ont également varié significativement entre les différents traitements allant de 43 ± 2% à 100% (P < 0,0001). Les plus faibles mortalités ont été enregistrées sur le témoin suivi de hyptis tandis que les plus forts taux ont été enregistrés, avec les doubles-doses de Acarius, Sunpyrifos et de l’huile de neem. Au champ, les densités moyennes par feuille des stades mobiles de P. latus ont varié significativement entre traitements, allant de 5,37 ± 0,59 et 2,71 ± 0,37 individus (P < 0,0001) ; les densités les plus fortes ayant été enregistrées sur le témoin tandis qu’aucune différence statistique n’a été observée entre les cinq autres traitements. Les plus fortes productivités de Gboma (kg/4 m2 ) ont été enregistrées avec l’huile de neem (13,65 ± 2,13), Sunpyrifos (11,10 ± 1,66) et Acarius (10,76 ± 1,32). Il s’en déduit qu’en attendant des études complémentaires, l’huile de neem peut être recommandée comme alternative aux acaricides chimiques contre P. latus sur les parcelles de Gboma au Sud-Bénin. The broad mite, Polyphagotarsonemus latus Banks is a key pest of the nightshade, commonly called Gboma eggplant (Solanum macrocarpon L.), a staple leafy vegetable in Benin. Management of this pest relies on chemical control despite its harmful environmental and sanitary impacts. It urgestherefore to search for alternative methods. In that respect, performances of some biopesticides including neem oil (Azadirachta indica A. Juss), aqueous extracts of Hyptis suaveolens (L.) Poit and of Ocimum gratissimum L. (clove basil), were tested on egg and adult stages of P. latus in laboratory in comparison to those of Acarius and Sunpyrifos, two chemical acaricides commonly used on vegetable farms in Southern Benin. In addition, their effects on the population densities of the pest and on the productivity of Gboma were evaluated in the field. In the laboratory, mean egg hatching rates varied significantly among treatments, ranging from 36 ± 5% to 80 ± 5% (P < 0,0001). The highest hatching rates were recorded with the control and hyptis treatments whereas the lowest hatching rates were recorded with Acarius followed by Sunpyrifos then neem oil treatments. Mortality rates of adult P. latus individuals also varied significantly among treatments, ranging from 43 ± 2% to 100% (P < 0,0001). The lowest mortality rates were recorded on the control followed by hyptis treatments whereas the highest mortalities were recorded with the double-doses of Acarius, Sunpyrifos and neem oil. In the field trials, mean densities of mobile stages of P. latus varied significantly among treatments, ranging from 5,37 ± 0,59 to 2,71 ± 0,37 individus (P < 0,0001). The highest densities were recorded on the control treatment whereas no significant differences were observed among the five other treatmentsThe highest productivities in fresh Gboma leaves on 4 m2 plot were recorded with neem oil (13.65 ± 2.13 kg), Sunpyrifos (11.1 ± 1.66 kg) and Acarius (10.76 ± 1.32 kg). Pending further studies, neem oil may be recommended as an alternative to chemical acaricides for the control of P. latus on Gboma plots in Southern Benin
G Mazzullo - One of the best experts on this subject based on the ideXlab platform.
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Acardius acephalus in a goat kid radiological and gross findings a case report
Veterinarni Medicina, 2018Co-Authors: Francesco Macri, G Lanteri, S Ferraro, G Marino, G MazzulloAbstract:We received a malformed Messinese Black goat foetus for examination. The foetus was part of a triple gestation, from which two male kids presented no morphological abnormalities and underwent regular slaughtering. X-ray examination and necropsy were performed. On the basis of gross and radiological findings the malformation was classified as Acardius acephalus . In human medicine, Acardius is a rare and severe abnormality reported as a unique complication of monozygotic twin pregnancies, and is known as twin-reversed arterial perfusion (TRAP).
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Acardius acephalus in a goat kid – radiological and gross findings: a case report
2016Co-Authors: Francesco Macri, G Lanteri, S Ferraro, G Marino, G MazzulloAbstract:ABSTRACT: We received a malformed Messinese Black goat foetus for examination. The foetus was part of a triple gestation, from which two male kids presented no morphological abnormalities and underwent regular slaughtering. X-ray examination and necropsy were performed. On the basis of gross and radiological findings the malformation was classified as Acardius acephalus. In human medicine, Acardius is a rare and severe abnormality reported as a unique complication of monozygotic twin pregnancies, and is known as twin-reversed arterial perfusion (TRAP)
Mitsuaki Suzuki - One of the best experts on this subject based on the ideXlab platform.
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mirror syndrome associated with hydropic Acardius in triplet pregnancy
Fetal Diagnosis and Therapy, 2008Co-Authors: Shigeki Matsubara, Takako Ohmaru, Akihide Ohkuchi, Fujimi Arai, Tomoyuki Kuwata, Rie Usui, Kayo Takahashi, Akio Izumi, Takashi Watanabe, Mitsuaki SuzukiAbstract:Objectives: Mirror syndrome is the association of triple edema, i.e. fetal, placental and maternal edema, with maternal preeclampsia. We here report the first case of mirror syndrom