Listar por autor "Vamvakopoulos, N."
Mostrando ítems 1-20 de 20
-
Absence of leptin expression and secretion by human luteinized granulosa cells
Karamouti, M.; Kollia, P.; Karligiotou, E.; Kallitsaris, A.; Prapas, N.; Kollios, G.; Seferiadis, K.; Vamvakopoulos, N.; Messinis, I. E. (2003)Whether leptin is secreted by the human ovary is not known. The available data on leptin gene (ob gene) expression by human granulosa cells are conflicting. The aim of the present study was first to re-examine the expression ... -
Clear detection and typing of Herpes Simplex Virus types 1 and 2 by an indirect ELISA assay: Comparison with three different combined methods - Capture ELISA, restriction enzymes, and polymerase chain reaction
Markoulatos, P.; Fountoucidou, P.; Marinakis, G.; Krikelis, V.; Spyrou, N.; Vamvakopoulos, N.; Moncany, M. L. J. (1997)The severity and recurrences of Herpes Simplex Virus (HSV) infection depend on the type of the infectious agent (HSV-1 or HSV-2), which induces the necessity of a nonambiguous detecting typing. The commonly used capture ... -
Effects of metformin on fertilisation of bovine oocytes and early embryo development: possible involvement of AMPK3-mediated TSC2 activation
Pikiou, O.; Vasilaki, A.; Leondaritis, G.; Vamvakopoulos, N.; Messinis, I. E. (2015)Studies on bovine oocytes have revealed that the activation of adenosine monophosphate activated protein kinase (AMPK) by millimolar concentrations of metformin controls nuclear maturation. Tuberous sclerosis complex 2 ... -
Estradiol and leptin as conditional prognostic IVF markers
Anifandis, G.; Koutselini, E.; Louridas, K.; Liakopoulos, V.; Leivaditis, K.; Mantzavinos, T.; Sioutopoulou, D.; Vamvakopoulos, N. (2005)We studied the concentration of serum estradiol and serum and follicular fluid leptin in 200 women undergoing their first in vitro fertilization with embryo transfer (IVF-ET) program at the time of human chorionic gonadotrophin ... -
The Fat Content of Small Primary Breast Cancer Interferes with Radiofrequency-Induced Thermal Ablation
Athanassiou, E.; Sioutopoulou, D.; Vamvakopoulos, N.; Karasavvidou, F.; Tzovaras, G.; Tziastoudi, E.; Sakellariou, M.; Hatzitheofilou, C. (2009)Background: Radiofrequency (RF) thermal ablation is a minimally invasive technique of local mass elimination with variable efficiency. Methods: Ten patients with small primary breast cancer diagnosed preoperatively by core ... -
Follicular Fluid Oocyte/Cumulus-Free DNA Concentrations as a Potential Biomolecular Marker of Embryo Quality and IVF Outcome
Dimopoulou, M.; Anifandis, G.; Messini, C. I.; Dafopoulos, K.; Kouris, S.; Sotiriou, S.; Satra, M.; Vamvakopoulos, N.; Messinis, I. E. (2014)The present prospective study examined the follicular fluid oocyte/cumulus-free DNA concentrations (ff o/c-free DNA) during ovarian stimulation and the possible association between ff o/c-free DNA and embryological results ... -
Growth hormone, insulin-like growth factor I, and leptin interaction in human cultured lutein granulosa cells steroidogenesis
Karamouti, M.; Kollia, P.; Kallitsaris, A.; Vamvakopoulos, N.; Kollios, G.; Messinis, I. E. (2008)Objective: To investigate the effect of leptin on the actions of growth hormone (GH) and insulin-like growth factor-I (IGF-I) in ovarian steroidogenesis in vitro. Design: In vitro cell culture study. Setting: Research ... -
Immunocytochemical expression of apoptotic and proliferating markers in hela cells after infection with influenza A virus
Sioutopoulou, D.; Valeri, R.; Kampas, L.; Plakokefalos, E.; Destouni, C.; Vamvakopoulos, N. (2007) -
Impact of lipoplex physicochemical properties upon transgene incorporation, stability and mode of nuclear targeting in cationic phosphonolipid- and lipophosphoramide-mediated transfection into human cells
Koumbi, D.; Clement, J. C.; Psarra, A. M.; Yaouanc, J. J.; Sideratou, Z.; Chatzouli, M.; Chiotoglou, I.; Vamvakopoulos, N.; Kollia, P. (2008) -
Impact of TLR-4 Polymorphisms on Circulating Levels of Antibodies Against Helicobacter pylori
Manolakis, A. C.; Kapsoritakis, A. N.; Tiaka, E. K.; Satra, M.; Gerovassili, A.; Tsiompanidis, I.; Vamvakopoulos, N.; Potamianos, S. P. (2010) -
Large-scale population genetic analysis for hemoglobinopathies reveals different mutation spectra in central Greece compared to the rest of the country
Samara, M.; Chiotoglou, I.; Kalamaras, A.; Likousi, S.; Chassanidis, C.; Vagena, A.; Vagenas, C.; Eftichiadis, E.; Vamvakopoulos, N.; Patrinos, G. P.; Kollia, P. (2007)We have undertaken a large population screening study to identify the molecular basis of hemoglobinopathies in the central Greece region. A total of 845 unrelated beta-thalassemia patients and alpha-, beta-, and delta ... -
Modulating effect of leptin on basal and follicle stimulating hormone stimulated steroidogenesis in cultured human lutein granulosa cells
Karamouti, M.; Kollia, P.; Kallitsaris, A.; Vamvakopoulos, N.; Kollios, G.; Messinis, I. E. (2009)Background: In vitro data have shown conflicting results in terms of the effect of leptin on granulosa cells steroidogenesis. Aim: The aim of the present study was to investigate the effect of low and high doses of leptin ... -
Molecular evaluation of transferrin receptor (TfR)-l and-2 mRNA expression in acute myeloid leukemia (AML)
Kollia, P.; Samara, M.; Stamatopqulos, K.; Belessi, C.; Stavroyianni, N.; Tsompanakou, A.; Athanasiadou, A.; Tachynopoulou, V.; Foutsitsakis, D.; Vamvakopoulos, N.; Laoutaris, N.; Loukopoulos, D.; Fassas, A.; Anagnostopoulos, A.; Yataganas, X. (2002) -
Predominantly post-transcriptional regulation of activation molecules in chronic lymphocytic leukemia: The case of transferrin receptors
Chiotoglou, I.; Smilevska, T.; Samara, M.; Likousi, S.; Belessi, C.; Athanasiadou, I.; Stavroyianni, N.; Samara, S.; Laoutaris, N.; Vamvakopoulos, N.; Anagnostopoulos, A.; Fassas, A.; Stamatopoulos, K.; Kollia, P. (2008)Transcriptional and post-transcriptional control mechanisms have a differential impact on cellular physiology depending on activation status. Several lines of evidence suggest that chronic lymphocytic leukemia (CLL) malignant ... -
Readressing the Role of Toll-Like Receptor-4 Alleles in Inflammatory Bowel Disease: Colitis, Smoking, and Seroreactivity
Manolakis, A. C.; Kapsoritakis, A. N.; Kapsoritaki, A.; Tiaka, E. K.; Oikonomou, K. A.; Lotis, V.; Vamvakopoulou, D.; Davidi, I.; Vamvakopoulos, N.; Potamianos, S. P. (2013)Toll-like receptor (TLR) polymorphisms, and especially TLR-4 Asp299Gly and TLR-4 Thr399Ile, have been linked with Crohn's disease (CD) and to a lesser extent with ulcerative colitis (UC), CD behavior, and compromised ... -
Residual telomerase activity as a marker of cell survival after exposure to ionizing radiation in vitro
Tsezou, A.; Satra, M.; Tsougos, Y.; Theodorou, K.; Papanikolaou, V.; Mavroidis, P.; Vamvakopoulos, N.; Kappas, C. (2004) -
Retroperitoneal tumors
Nomikos, I.; Vamvakopoulou, D.; Vamvakopoulos, N. (2011) -
The role of human telomerase catalytic subunit mRNA expression in cervical dysplasias
Tsezou, A.; Oikonomou, P.; Kollia, P.; Mademtzis, I.; Kostopoulou, E.; Messinis, I.; Vamvakopoulos, N. (2005)Telomerase activity and human telomerase reverse transcriptase (hTERT) mRNA expression were investigated in cervical specimens and were correlated with cytologic findings and the presence of human papilloma virus (HPV) ... -
Telomerase reverse transcriptase mRNA expression in peripheral lymphocytes of patients with chronic HBV and HCV infections
Satra, M.; Dalekos, G. N.; Kollia, P.; Vamvakopoulos, N.; Tsezou, A. (2005)Telomerase activity is present at low levels in peripheral lymphocytes (PL) and is upregulated upon activation, possibly protecting PL from telomere shortening. As decreased telomere length is considered a sign of cellular ... -
TLR4 gene polymorphisms: evidence for protection against type 2 diabetes but not for diabetes-associated ischaemic heart disease
Manolakis, A. C.; Kapsoritakis, A. N.; Tiaka, E. K.; Sidiropoulos, A.; Gerovassili, A.; Satra, M.; Vamvakopoulou, D.; Tsiopoulos, F.; Papanas, N.; Skoularigis, I.; Potamianos, S. P.; Vamvakopoulos, N. (2011)Objective: Several factors either predisposing or protecting from the onset of diabetes mellitus type 2 (DM2) have been proposed. Two specific polymorphisms of toll-like receptor 4 (TLR4; Asp299Gly and Thr399Ile) have ...