37 research outputs found
Description of a new Phytocoris (Compsocerocoris) species (Heteroptera: Miridae) from southeastern Anatolia with a checklist of the Phytocoris species of Turkey
A new species of the genus Phytocoris Fallen, subgenus Compsocerocoris, is described from southeastern Anatolia, Turkey: Phytocoris iyribozi sp. n. The new species is closely related to the species of the dashtanus species-group within the subgenus but differs from them by remarkably small size, short first antennal segment, small ocular index of male and shape of left paramere. To distinguish the new species, an updated identification key of the dashtanus species-group is presented. Additionally, a checklist of Phytocoris species of Turkey with chorotypes of each species is given. A total of 43 species of Phytocoris is listed from Turkey and the chorotype analysis revealed that 23.3% (10 of 43) of species are endemic to Turkey and 60.6% (26 of 43) are distributed only locally in Turkey and its neighbouring countries
Intraventricular Hemorrhage as an Unusual Presenting Form of Sneddon Syndrome
BACKGROUND: Intraventricular hemorrhage, which has a poor prognosis, is an extremely rare presenting symptom of central nervous system vasculitis. Sneddon syndrome, which is a systemic vasculitic disease, generally presents with ischemic stroke and livedo reticularis. Intraventricular hemorrhage is extremely rare in Sneddon syndrome and has not been reported as the presenting complaint
New triterpene saponins from Phryna ortegioides
WOS: 000366569300009Four new and three known oleanane-type saponins have been isolated from the methanolic extract of Phryna ortegioides, a monotypic and endemic taxon of Caryophyllaceae. The structures of the new compounds were determined as gypsogenic acid 28-O-beta-D-glucopyranosyl-(1 -> 2)-O-beta-D-glucopyranosyl-(1 -> 6)-O-beta-D-glucopyranosyl ester (1), 3-O-alpha-L-arabinofuranosyl-gypsogenic acid 28-O-beta-D-glucopyranosyl-(1 -> 3)-O-[beta-D-glucopyranosyl-(1 -> 6)]-O-beta-D-glucopyranosyl ester (2), 3-O-alpha-L-arabinofuranosyl-gypsogenic acid 28-O-beta-D-glucopyranosyl-(1 -> 3)-O-[beta-D-glucopyranosyl-(1 -> 2)-O-beta-D-glucopyranosyl-(1 -> 6)-O-]-beta-D-glucopyranosyl ester (3), 3-O-alpha-L-arabinofuranosyl-16 alpha-hydroxyolean-12-en-23,28-dioic acid-28-O-beta-D-glucopyranosyl-(1 -> 3)-O-[beta-D-glucopyranosyl-(1 -> 2)-O-beta-D-glucopyranosyl-(1 -> 6)]-O-beta-D-glucopyranosyl ester (4). Their structures were established by a combination of one-and two-dimensional NMR techniques, and mass spectrometry. Noteworthy, none of isolated compounds possesses as aglycone moiety gypsogenin, considered a marker of Caryophyllaceae family. The cytotoxic activity of the isolated compounds was evaluated against three cancer cell lines including A549 (human lung adenocarcinoma), A375 (human melanoma) and DeFew (human B lymphoma) cells. Only compound 6 showed a weak activity against A375 and DeFew cell lines with IC50 values of 77 and 52 mu M, respectively. None of the other tested compounds, in a range of concentrations between 12.5 and 100 mu M, caused a significant reduction of the cell number. (C) 2015 Phytochemical Society of Europe. Published by Elsevier B.V. All rights reserved
Correlation of Prostate-Imaging Reporting and Data Scoring System scoring on multiparametric prostate magnetic resonance imaging with histopathological factors in radical prostatectomy material in Turkish prostate cancer patients: a multicenter study of the Urooncology Association
Eskicorapci, Saadettin/0000-0003-1169-870X; Ozveren, Bora/0000-0001-8902-7530;WOS: 000523365800002PubMed: 32257972Background: Histopathological features after radical prostatectomy (RP) provide important information for the prognosis of prostate cancer (PCa). the possible correlations between Prostate-Imaging Reporting and Data Scoring System (PIRADS) scores in multiparametric magnetic resonance imaging (mpMRI) may also be predictive for prognosis. in this study, we aimed to evaluate the correlation of PIRADS scores with histopathological data. Methods: A total of 177 patients who underwent preoperative mpMRI and RP for PCa from eight institutions were included in the study. Correlation of PIRADS score in preoperative mpMRI with adverse histopathological factors in RP specimen was investigated using univariate and multivariate analyses. Results: the relationship between PIRADS score and postoperative extracapsular extension, lymphovascular invasion, and seminal vesicle involvement was significant (P < 0.001, P = 0.032, and P = 0.007, respectively). Although the PIRADS score was significantly correlated with the number of dissected lymph nodes (p = 0.026), it had no significant correlation with the number of positive nodes (P = 0.611). Total Gleason score, extracapsular extension, seminal vesicle invasion, and number of lymph nodes were found to be independent factors, which correlated with high PIRADS scores in ordinal logistic regression analysis. Conclusion: PIRADS scoring system in mpMRI showed a statistically significant correlation with adverse histopathological factors in RP specimen. A higher PIRADS score may help to predict a higher Gleason score, indicating clinically important PCa as well as poor prognotic factors such as extracapsular extension, lymphovascular invasion, and seminal vesicle invasion that may indicate a higher risk of recurrence and the need for additional treatment. (C) 2020 Asian Pacific Prostate Society. Publishing services by Elsevier B.V