Éditeur(s) : Springer
Résumé : Clonality and genetic structure of the coral Pocillopora damicornis sensu lato were assessed using five microsatellites in 12 populations from four islands of the Society Archipelago (French Polynesia) sampled in June 2008. The 427 analysed specimens fell into 132 multilocus genotypes (MLGs), suggesting that asexual reproduction plays an important role in the maintenance of these populations. A haploweb analysis of ITS2 sequences of each MLG was consistent with all of them being conspecific. Genetic differentiation was detected both between and within islands, but when a single sample per MLG was included in the analyses, the populations turned out to be nearly panmictic. These observations provide further evidence of the marked variability in reproductive strategies and genetic structure of P. damicornis throughout its geographic range; comparison with results previously obtained for the congeneric species Pocillopora meandrina underlines the importance of life history traits in shaping the genetic structure of coral populations
Marine Biology (0025-3162) (Springer), 2014-03 , Vol. 161 , N. 3 , P. 531-541

Droits : Springer-Verlag Berlin Heidelberg 2013
http://archimer.ifremer.fr/doc/00171/28209/26518.pdf
DOI:10.1007/s00227-013-2355-9
http://archimer.ifremer.fr/doc/00171/28209/

Éditeur(s) : HAL CCSD Elsevier
Résumé : International audience
Le groupe de recherche sur les avancées en pneumo-pédiatrie (GRAPP) a élaboré en 2013 des recommandations sur l'utilisation des nouveaux outils diagnostiques dans les infections respiratoires basses de l'enfant de plus de trois mois. Ces recommandations sont présentées ici en un texte court, le texte long est disponible sur le site de la Société française de pédiatrie www.sfpediatrie.com et de la Société pédiatrique de pneumologie et d'allergologie (SP2A) www.sp2a.fr.
ISSN: 0929-693X

hal-00994569
https://hal-univ-rennes1.archives-ouvertes.fr/hal-00994569
DOI : 10.1016/j.arcped.2014.01.004
PUBMED : 24613479

Éditeur(s) : HAL CCSD Elsevier Masson
Résumé : International audience
The only symbiotic Mediterranean gorgonian, Eunicella singularis, has faced several mortality events connected to abnormal high temperatures. Since thermotolerance data remain scarce, heat-induced necrosis was monitored in aquarium by morphometric analysis. Gorgonian tips were sampled at two sites: Medes (Spain) and Riou (France) Islands, and at two depths: 15 m and-35 m. Although coming from contrasting thermal regimes, seawater above 28 degrees C led to rapid and complete tissue necrosis for all four populations. However, at 27 degrees C, the time length leading to 50% tissue necrosis allowed us to classify samples within three classes of thermal sensitivity. Irrespectively of the depth, Medes specimens were either very sensitive or resistant, while Riou fragments presented a medium sensitivity. Microsatellite analysis revealed that host and symbiont were genetically differentiated between sites, but not between depths. Finally, these genetic differentiations were not directly correlated to a specific thermal sensitivity whose molecular bases remain to be discovered.
ISSN: 1631-0691

hal-01546168
https://hal.archives-ouvertes.fr/hal-01546168
DOI : 10.1016/j.crvi.2013.06.008

Éditeur(s) : HAL CCSD Oxford University Press (OUP): Policy A1 - Oxford Open Option C
Résumé : International audience
BACKGROUND: Infections of renal grafts with Candida species can induce life-threatening complications in the recipient. METHODS: A 9-year retrospective study involving all of the transplant centers in France was designed to determine the incidence, origin, characteristics, and outcome of graft-site candidiasis that occurred after kidney transplantation. Yeasts cultured from preservation or drainage solutions and graft specimens were recorded. RESULTS: Among 18,617 kidney grafts, 18 recipients corresponding to 12 donors developed culture-confirmed graft-site candidiasis (incidence, 1 case per 1000 grafts) a median of 25 days after the graft procedure. Clinical presentations included 14 cases of renal arteritis (13 were complicated by aneurysm), 1 urinoma, 2 graft site abscesses, and 1 surgical site infection. Candida albicans was involved in 13 cases. A unique C. albicans genotype or a single rare Candida species was involved in each episode. Together with the clinical history, these findings demonstrate that organ contamination followed by transmission to the recipient occurred during recovery. Therapeutic management varied from simple monitoring in 1 case to a combination of surgery (nephrectomy in 9 cases and arterial bypass in 9 cases) and antifungal therapy (14 cases). Overall, 3 of 18 kidney transplant recipients died, and 9 had their graft surgically removed. CONCLUSION: Graft-transmitted candidiasis that ends most often in fungal arteritis is associated with high morbidity and mortality after kidney transplantation and is related to organ contamination during recovery in the donor.
Clinical Infectious Diseases

hal-00676313
https://hal.archives-ouvertes.fr/hal-00676313
DOI : 10.1086/595688
PUBMED : 19090753