Albskie koralowce z jenostki subpelagońskiej środkowej Grecji (Agrostylia, rejon Parnasu)

Shallow-water scleractinian corals from Cretaceous allochthonous sediments of Subpelagonian Zone in Agrostylia (Parnassos region, Central Greece) represent 47 taxa belonging to 35 genera, 15 families and 8 suborders; of these 3 new genera and 9 new species are described. Among these taxa, 5 were identified only at the generic level. One octocorallian species has also been identified. This coral assemblage is representative for late Early Cretaceous Tethyan realm but also shows some endemism. A characteristic feature of this scleractinian coral assemblage is the abundance of specimens from the suborder Rhipidogyrina. The Albian age of the corals discussed is indicated by the whole studied coral fauna, associated foraminifers, calpionellids and calcareous dinoflagellate

Occurence of Oligocene Corals (Rupelian) in the central-western Peloponnesus (Greece). Palcotcological and paleobiogeographical significance [Présence de coraux oligocènes (Rupélien) dans le Péloponnèse central-occidental (Grèce). Signification paléoécologique et paléobiogéographique]

The occurence of hermatypic Corals (Astrocoenia palmata (CATULLO), Porites nummulitica REUSS, Parites minuta REUSS, Favia subdenticulata (CATULLO) and Antiguastrea lucasiana (DEFRANCE) on the paleorelief of breccia limestones of the Lapithas mountain (central-western Peloponnesus) indicates an early Oligocene (Rupelian) age. The development of the reef Corals in the studied region gives a paleoecological and paleobiogeographical significance at this fauna

Présence de coraux oligocènes (Rupélien) dans le Péloponnèse central-occidental (Grèce). Signification paléoécologique et paléobiogéographique

Occurence of Oligocene Corals (Rupelian) in the central-western Peloponnesus (Greece). Paleoecological and paleobiogeogra-phical significance. The occurence of hermatypic Corals (Astrocoenia palmata (Catullo), Porites nummulitica Reuss, Porites minuta Reuss, Favia subdenticulata (Catullo) and Antiguastrea lucasiana (Defrance) on the paleorelief of breccia limestones of the Lapithas mountain (central-western Peloponnesus) indicates an early Oligocene (Rupelian) age. The development of the reef Corals in the studied region gives a paleoecological and paleobiogeographical significance at this fauna.La présence de Coraux hermatypiques (Astrocoenia palmata (Catullo), Porites nummulitica Reuss, Porites minuta Reuss, Favia subdenticulata (Catullo) et Antiguastrea lucasiana (Defrance) sur le paleorelief des brèches calcareuses monomictes de la montagne de Lapithas (Péloponnèse central -occidental) permet de leur attribuer un âge oligocène inférieur (Rupélien). Le développement des coraux récifaux dans cette région donne une signification paléoécologique et paléobiogéographique à cette faune.Marcopoulou-Diacantoni A., Fountoulis J., Lekkas E. l. Présence de coraux oligocènes (Rupélien) dans le Péloponnèse central-occidental (Grèce). Signification paléoécologique et paléobiogéographique. In: Géologie Méditerranéenne. Tome 23, numéro 1, 1996. pp. 11-25

Effect of Nd:YAG Low Level Laser Therapy on Human Gingival Fibroblasts

Aim. To evaluate the effect of Low Level Laser Therapy (LLLT) on human gingival fibroblasts in terms of proliferation and growth factors' secretion (EGF, bFGF, and VEGF). Materials and Methods. Primary cultures of keratinized mucosa fibroblasts were irradiated by a Nd:YAG laser 1064 nm with the following energy densities: 2.6 J/cm2, 5.3 J/cm2, 7.9 J/cm2, and 15.8 J/cm2. Controls were not irradiated. Cultures were examined for cell proliferation and growth factors' secretion after 24, 48, and 72 hours. All experimental procedures were performed in duplicate. Data were analyzed by Student's t-test (p<0.05). Results. All laser-irradiation doses applied promoted a higher cell proliferation at 48 hours in a dose-response relationship compared to controls. This difference reached statistical significance for the cultures receiving 15.8 J/cm2 (p=0.03). Regarding EGF, all laser irradiation doses applied promoted a higher secretion at 48 hours in a reverse dose-response pattern compared to controls. This difference reached statistical significance for the cultures receiving 2.6 J/cm2 (p=0.04). EGF levels at the other time points, bFGF, and VEGF showed a random variation between the groups. Conclusion. Within the limits of this study, LLLT (Nd:YAG) may induce gingival fibroblasts' proliferation and upregulate the secretion of EGF. Further studies are needed to confirm these results. � 2015 Andreas S. Gkogkos et al

Effect of Nd:YAG Low Level Laser Therapy on Human Gingival Fibroblasts

Aim. To evaluate the effect of Low Level Laser Therapy (LLLT) on human gingival fibroblasts in terms of proliferation and growth factors’ secretion (EGF, bFGF, and VEGF). Materials and Methods. Primary cultures of keratinized mucosa fibroblasts were irradiated by a Nd:YAG laser 1064 nm with the following energy densities: 2.6 J/cm2, 5.3 J/cm2, 7.9 J/cm2, and 15.8 J/cm2. Controls were not irradiated. Cultures were examined for cell proliferation and growth factors’ secretion after 24, 48, and 72 hours. All experimental procedures were performed in duplicate. Data were analyzed by Student’s t-test (p<0.05). Results. All laser-irradiation doses applied promoted a higher cell proliferation at 48 hours in a dose-response relationship compared to controls. This difference reached statistical significance for the cultures receiving 15.8 J/cm2 (p=0.03). Regarding EGF, all laser irradiation doses applied promoted a higher secretion at 48 hours in a reverse dose-response pattern compared to controls. This difference reached statistical significance for the cultures receiving 2.6 J/cm2 (p=0.04). EGF levels at the other time points, bFGF, and VEGF showed a random variation between the groups. Conclusion. Within the limits of this study, LLLT (Nd:YAG) may induce gingival fibroblasts’ proliferation and upregulate the secretion of EGF. Further studies are needed to confirm these results

Effect of Nd:YAG Low Level Laser Therapy on Human Gingival Fibroblasts

Aim. To evaluate the effect of Low Level Laser Therapy (LLLT) on human gingival fibroblasts in terms of proliferation and growth factors&apos; secretion (EGF, bFGF, and VEGF). Materials and Methods. Primary cultures of keratinized mucosa fibroblasts were irradiated by a Nd:YAG laser 1064 nm with the following energy densities: 2.6 J/cm 2 , 5.3 J/cm 2 , 7.9 J/cm 2 , and 15.8 J/cm 2 . Controls were not irradiated. Cultures were examined for cell proliferation and growth factors&apos; secretion after 24, 48, and 72 hours. All experimental procedures were performed in duplicate. Data were analyzed by Student&apos;s -test ( &lt; 0.05). Results. All laserirradiation doses applied promoted a higher cell proliferation at 48 hours in a dose-response relationship compared to controls. This difference reached statistical significance for the cultures receiving 15.8 J/cm 2 ( = 0.03). Regarding EGF, all laser irradiation doses applied promoted a higher secretion at 48 hours in a reverse dose-response pattern compared to controls. This difference reached statistical significance for the cultures receiving 2.6 J/cm 2 ( = 0.04). EGF levels at the other time points, bFGF, and VEGF showed a random variation between the groups. Conclusion. Within the limits of this study, LLLT (Nd:YAG) may induce gingival fibroblasts&apos; proliferation and upregulate the secretion of EGF. Further studies are needed to confirm these results