Assesment of accessory branches of canalis sinuosus on CBCT images

The aim of this study is to describe the presence, to reveal the frequency and characteristics of accessory canals (ACs) of the canalis sinuosus (CS) by cone beam computed tomography (CBCT). A total of 326 CBCT examinations were scanned retrospectively. The anatomical views were evaluated on sagittal, axial, coronal and cross sectional imaging. The following parameters were recorded: age, sex, presence or absence of ACs, location in relation to the adjacent teeth and distance to the nasal cavity floor (NCF), alveolar ridge crest (ARC) and buccal cortical bone (BCB), and incisive canal. All the collected data were statistically analyzed. 113 patients (34,7%); presented ACs in total 214 foramina of the sample. There were no statistically significant changes in the presence of ACs regarding age groups excluding 80-89 years. But there is a statistically significant difference regarding the frequency of ACs and the gender. The prevalence for male patients was higher than female patients. Curved-shape configuration of CS prevalence is found as 69,15%. The prevalence of vertical tracing is 26,16% and Y-shape configuration of CS prevalence is 4,67%. Diameter of the foramens of the CS branches was 1.30 mm. The mean distance of the AC to the NCF, BCB, and ARC were found 13,83 mm, 6,60 mm and 5,32 mm, respectively. In the anterior palatal region, ACs are mostly related to CS?s branches. So; knowing the course of CS branches in surgical planning and radiographic evaluations in this region is extremely important for preventing complications and avoiding misdiagnosis

Tesadüfi saptanan Rinolith vakaları

Rinolitler; nazal kavitede yerleşimli, bir nidus etrafında biriken mineraller kaynaklı oluşan kalsifiye kitleler olup, çok nadir olarak görülmektedirler. Bu olgu serisinin amacı; rinolit tanısı konulan hastaların klinik özelliklerini ve radyolojik bulgularını sunmaktır. 18 ve 28 yaşlarında iki erkek hasta dental ağrı şikayeti nedeniyle Recep Tayyip Erdoğan Üniversitesi Diş Hekimliği Fakültesi Ağız, Diş ve Çene Radyolojisi Bölümü'ne başvurmuştur. Panoramik radyografilerinde nazal kavite içerisinde kalsifiye kitle gözlenen hastalardan konik ışınlı bilgisayarlı tomografi alınmıştır. Rinolit ön tanısı ile hastalar kulak-burun-boğaz polikliniğine yönlendirilmiştir. Hastalardan birinin nazal kavitesi opere edilmiştir ve ön tanı biyopsi sonuçları ile uyumlu bulunmuştur. Bu sunumda rinolit tanısında diş hekiminin rolü vurgulanmaktadır

Cell-Surface Marker Signatures for the Isolation of Neural Stem Cells, Glia and Neurons Derived from Human Pluripotent Stem Cells

Neural induction of human pluripotent stem cells often yields heterogeneous cell populations that can hamper quantitative and comparative analyses. There is a need for improved differentiation and enrichment procedures that generate highly pure populations of neural stem cells (NSC), glia and neurons. One way to address this problem is to identify cell-surface signatures that enable the isolation of these cell types from heterogeneous cell populations by fluorescence activated cell sorting (FACS).We performed an unbiased FACS- and image-based immunophenotyping analysis using 190 antibodies to cell surface markers on naïve human embryonic stem cells (hESC) and cell derivatives from neural differentiation cultures. From this analysis we identified prospective cell surface signatures for the isolation of NSC, glia and neurons. We isolated a population of NSC that was CD184(+)/CD271(-)/CD44(-)/CD24(+) from neural induction cultures of hESC and human induced pluripotent stem cells (hiPSC). Sorted NSC could be propagated for many passages and could differentiate to mixed cultures of neurons and glia in vitro and in vivo. A population of neurons that was CD184(-)/CD44(-)/CD15(LOW)/CD24(+) and a population of glia that was CD184(+)/CD44(+) were subsequently purified from cultures of differentiating NSC. Purified neurons were viable, expressed mature and subtype-specific neuronal markers, and could fire action potentials. Purified glia were mitotic and could mature to GFAP-expressing astrocytes in vitro and in vivo.These findings illustrate the utility of immunophenotyping screens for the identification of cell surface signatures of neural cells derived from human pluripotent stem cells. These signatures can be used for isolating highly pure populations of viable NSC, glia and neurons by FACS. The methods described here will enable downstream studies that require consistent and defined neural cell populations

Beyond the ‘East-West’ dichotomy: global variation in cultural models of selfhood

Markus and Kitayama’s (1991) theory of independent and interdependent self-construals had a major influence on social, personality, and developmental psychology by highlighting the role of culture in psychological processes. However, research has relied excessively on contrasts between North American and East Asian samples, and commonly used self-report measures of independence and interdependence frequently fail to show predicted cultural differences. We revisited the conceptualization and measurement of independent and interdependent self-construals in 2 large-scale multinational surveys, using improved methods for cross-cultural research. We developed (Study 1: N = 2924 students in 16 nations) and validated across cultures (Study 2: N = 7279 adults from 55 cultural groups in 33 nations) a new 7-dimensional model of self-reported ways of being independent or interdependent. Patterns of global variation support some of Markus and Kitayama’s predictions, but a simple contrast between independence and interdependence does not adequately capture the diverse models of selfhood that prevail in different world regions. Cultural groups emphasize different ways of being both independent and interdependent, depending on individualism-collectivism, national socioeconomic development, and religious heritage. Our 7-dimensional model will allow future researchers to test more accurately the implications of cultural models of selfhood for psychological processes in diverse ecocultural contexts

To Analyse Effect of Tracheal Occlusion in the Development of Lung in Nitrofen Induced Congential Diaphragmatic Hernia Model

Aim: Congenital daphragmatic hernia is a congenital abnormality with high morbidity and mortality. In our study, we aimed to analyse the effect of tracheal occlusion in lung development in nitrofen-induced congenital daphragmatic hernia

Anterior stafne defect of the mandible

Stafne bone cavity is round or ovoid, well circumscribed radiolucency located at the lingual cortex of mandible, below the inferior alveolar canal, mostly near the angle. Anterior location of Stafne bone cavity is a unusual developmental anomaly and only 66 cases reported in the English literature. As a result of the localization of this formation, which is asymptomatic and diagnoses with routine radiographic examination, it may be confused with pathologies and may cause misdiagnosis. In this case report a Stafne bone cavity located in the mandibular incisor-canine region, which was found incidentally during radiographic examination cavity is presented with cone beam computed tomography and magnetic resonance images

Angiomatoid fibrous histiocytoma: case report and review of the literature

Angiomatoid fibrous histiocytoma is a rare soft tissue tumor of uncertain differentiation and low metastatic potential, which occurs predominantly in children and young adults. It occurs mostly within the extremities, trunk, head and neck. It can be associated with systemic manifestations such as anemia, pyrexia and malaise. Its morphology is distinct, with an outer shell of lymphoid tissue, sheets of dendritic-like tumor cells with bland nuclei and blood-filled cystic cavities. Herein, we present a case of angiomatoid fibrous histiocytoma with systemic symptoms before any mass was clinically detectable, arising in the scalp of a 10-year-old girl