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991.
992.
Topaktaş M Rencüzoğullari E Ila HB Kayraldiz A 《Teratogenesis, carcinogenesis, and mutagenesis》2002,22(6):411-423
The aim of this study was to investigate, by using chromosome aberration (CA) and sister chromatid exchange (SCE) tests, whether or not the workers employed in the Iskenderun (Turkey) iron and steel factory have any genotoxic risk. The CA and the SCE were investigated in 48 males employed in a coke ovens unit and 8 males employed in a product side unit of the factory and in control groups. The frequency of CA was higher while the frequency of the SCE was not in all the smoker-nonsmoker workers than in smoker-nonsmoker control groups. In addition, there was no significant decrease in the RI, while the MI was significantly lower than in the controls. . 相似文献
993.
Kadir Desdicioglu Mehmet Ali Malas Selen Bahceci Fatma Simsek Ayse Gizem Polat 《Journal of the Anatomical Society of India》2017,66(1):37-42
Introduction
In our study, the aim was to anatomically and histologically investigate the morphometric structures of the branches involved in the sural nerve and sural nerve formation.Method
The study was conducted on 46 lower extremities of 23 fetuses which were obtained from Izmir Katip Çelebi University, Atatürk Training and Research Hospital, with ages from 18 and 32 gestational weeks, without any external pathology or anomaly. During the study period, the posterior-side skin dissection of the lower extremity was performed with the aid of a surgical dissection microscope initially, and the structures forming the sural nerve and the sural nerve were exposed and made visible. Afterwards, sections were taken from these structures for morphometric measurements and histological examination.Results
The mean values and standard deviations of morphometric measurements obtained were determined. Separately, it was determined that there was no statistical difference between right-left sides and genders in morphometric measurements (p > 0.05). The sural nerve was determined to be differentiated into 4 types as A, B, C and D according to the way the nerve branches forming sural nerve join. In addition, differing characteristics pertaining to the sural nerve and branches were determined.Discussion
We are of the opinion that the data obtained in our study will be of use to neurologists, orthopedists and clinicians engaged in this region during interventional procedures. 相似文献994.
Sclerosing mesenteritis: A real manifestation or histological mimic of IgG4‐related disease? 下载免费PDF全文
Mehmet Ozgur Avincsal Kyoko Otani Maki Kanzawa Kohei Fujikura Naoe Jimbo Yukiko Morinaga Takanori Hirose Tomoo Itoh Yoh Zen 《Pathology international》2016,66(3):158-163
We present three cases of sclerosing mesenteritis and review the literature to learn whether or not sclerosing mesenteritis is an IgG4‐related disease (IgG4‐RD). Our patients were all adult males. Their mesenteric masses ranged from 6.5 to 14.5 cm in the greatest diameter. Tissue specimens showed moderate to severe lymphoplasmacytic infiltration with occasional eosinophils against a background of irregular fibrosis. Both obliterative phlebitis and storiform fibrosis were noted in all cases. IgG4+ plasma cells were moderately increased in number (46 to 85 cells/high‐power field). However, unlike IgG4‐RD, the IgG4+/IgG+ plasma cell ratio was <40% (28% to 35%). Serum IgG4 concentrations were also within the normal range (43.2 to 105 mg/dL; normal range <135 mg/dL). Two biopsy cases showed spontaneous regression on imaging approximately 5 months later. No sclerosing conditions were found in other organs. The literature review identified 11 additional cases of sclerosing mesenteritis with IgG4+ plasma cell infiltration. However, conclusive cases with four characteristic features (high serum IgG4 levels, tissue IgG4 elevation, multi‐organ involvement, and effective response to glucocorticoid therapy) have never been reported. In conclusion, although sclerosing mesenteritis shares histological features with IgG4‐RD, most cases are less likely to be IgG4‐related. IgG4‐RD seemingly seldom, if ever, affects this anatomical site. 相似文献
995.
Ergunay K Tezel GG Dogan AI Ozen H Sirin G Ozbay M Karabulut E Ustacelebi S 《Pathology, research and practice》2008,204(9):649-653
Human Parvovirus B19 has previously been implicated in the pathogenesis of testicular germ cell tumors, but this could not have been confirmed. This study was designed to investigate the testicular persistence of Parvovirus B19 and possible associations with germ cell tumors. Paraffin-embedded or fresh tissues from 36 germ cell tumors, 20 germ cell aplasias, 26 normal testicular tissues, 20 liver tissues, and 20 spleen tissues were evaluated by two different molecular assays: a nested PCR for Parvovirus B19 capsid genes and a commercial quantitative real-time PCR. Positive results were further confirmed by another commercial real-time PCR assay. Viral DNA was detected in 3 of 36 (8.3%) germ cell tumors, but not in other groups. Viral loads observed in all positive samples were less than 20 IU/reaction, suggesting very low levels of viral replication or latency. These results either directly or indirectly imply the involvement of Parvovirus B19 with testicular germ cell tumors. Viral persistence in normal testis, germ cell aplasia tissues, or hepatic/splenic tissues was not observed in this study. 相似文献
996.
Sedanur Turgut Bora Bagis Elif Aydogan Ayaz K?van? Utku Ulusoy Subutay Han Altintas Fatih Mehmet Korkmaz Nilsun Bagis 《International journal of medical sciences》2013,10(11):1503-1509
Purpose: Oral rinses are widely used to promote periodontal health with provisional restorations during the interim period. The aim of this study was to compare the discoloration of provisional restoration materials with different oral rinses.Material and Methods: A total of 140 disc-shaped specimens (shade A2) (10 mm x 2 mm) were prepared from one PMMA-based (TemDent Classic®) and three different bis-acrylic-based (Protemp II®, Luxatemp® and Fill-In®) provisional restoration materials (n=7). The color values (L*, a*, and b*) of each specimen were measured before and after exposure with a colorimeter, and the color changes (∆E) were calculated according to the CIE L*a*b* system. The specimens were immersed in each of the 4 oral rinses (alcohol-containing mouthwash, chlorhexidine, benzydamine HCl, benzydamine HCl and chlorhexidine) twice a day for 2 minutes. After 2 minutes of immersion in the oral rinses, the specimens were immersed in artificial saliva. The specimens were exposed to the oral rinses and the artificial saliva for 3 weeks. Two-way ANOVA, the Bonferroni test and the paired sample t-test were used for statistical analyses (p<0.05).Results: Comparison of the discoloration from the oral rinses after immersion for three weeks revealed no significant differences (p>0.05). The lowest color change was observed in PMMA-based Temdent in all oral rinses (p<0.05). There were no significant differences between the bis-acryl composites after immersion in saliva or the mixture of benzydamine HCl and chlorhexidine and the alcohol-containing mouthwash for 3 weeks (p>0.05). After immersion in chlorhexidine, the color change values of Protemp II and Fill-in showed significant differences (p=0.018). Protemp II also showed less discoloration than the other bis-acryl composites, and this color change was statistically significant (p <0.05). For all oral rinses, the L* value decreased while b* values increased, and this color change was found to be statistically significant (p <0.05). A* values were found to be significantly higher with oral rinses (p<0.05), except Protemp II immersed in benzydamine HCl or alcohol-containing mouthwash.Conclusions: The type of the oral rinse did not affect the discoloration process. For long-term esthetic results, choosing MMA-based materials for provisional restorations appears to be more effective. 相似文献
997.
998.
Evaluation of Different Thickness,Die Color,and Resin Cement Shade for Veneers of Multilayered CAD/CAM Blocks 下载免费PDF全文
999.
Mehmet Ali Altay DDS PhD Alexandra Radu DMD Sean E. Pack DDS MD Nelli Yıldırımyan DDS Andres Flores-Hidalgo DDS Dale A. Baur DDS MD 《Cranio : the journal of craniomandibular practice》2020,38(5):333-341
ABSTRACT
Objectives
This study aimed to evaluate and report the outcomes associated with the management of patients who were treated surgically for medication-related osteonecrosis of the jaw (MRONJ).Methods: Demographic and medical profiles of patients with a diagnosis of MRONJ were created. The type of surgical treatment, complications, and treatment outcomes were identified.Results: Twenty-one patients with an average age of 68.42 years (range 40–90 years) were included. Nineteen patients had only mandible involvement, one patient had only maxilla involvement, and one patient had both mandible and maxilla involvement. Thirteen patients underwent marginal resections. Eight patients underwent segmental resection of the mandible with immediate reconstruction. Nineteen patients healed without any complications. Two patients who had undergone segmental resection of the mandible experienced postoperative complications and needed a second surgery to achieve primary closure.Discussion: Advanced MRONJ can effectively be treated with resective surgery in combination with medical treatment. 相似文献1000.