Browsing by Author "Turhan, Nesrin"

Now showing 1 - 4 of 4

Evaluation of The Effect of Lipid Emulsıon Therapy on The Rat Model in Organophosphate Intoxication and Tissue Pathologies
(2014) Celikel, Elif; Arslan, Engin Deniz; Yilmaz, Fevzi; Turhan, Turan; Unal, Muge Tecder; Turhan, Turan; Turhan, Nesrin; Kavalci, Cemil; Karakilic, M. Evvah; Altunkaynak, Hande Ozge; Unal, Muge Tecder; Demir, Ali; AAH-5151-2020
Introduction and objective: Organophosphates are frequently used for agricultural spraying in an uncontrolled manner in our country. Humans are usually inadvertently exposed to these chemicals via respiratory, transdermal, or tranconjunctival routes whereas they may also be used for suicidal purposes: Having a high morbidity and mortality, this intoxication causes a high emergency department admission rate (1). Previous studies on lipid therapy in cardiac arrest associated with intoxication of lipophilic agents such as antidepressants, anticonvulsants, antihypertensives, and local anesthetics have reported a 55% increase in survival with these therapies (2). We also studied lipid emulsion therapy (LET) in poisoning with organophosphates that are lipophilic. Materials and method: This study used 30 male Wistar-albino rats of 12 months of age weighting 288 to 428 gr. The animals were randomly grouped into 5 groups: Group 1 Was the control group; Group 2 organophosphate+serum physiologic (SF) group; Group 3 organophosphate+LET group; Group 4 arganophosphate + Atropin(A)+ Pralidoxime (PAM) group; and Group 5 organophosphate+LET+A+PAM group. After an 8-hour clinical observation period the rats were sacrificed and Wad pseudocholitiesterase, cholesterol; and triglyceride levels were studied. Renal, hepatic, splenic, and cerebral tissues were sampled to be examined under light microscope. Results : There were significant differences between the groups with respect to cholesterol, triglyceride, but not pseudocholine-sterase level Dizziness was the first observed clinical symptom, followed by hindleg paralysis, foreleg paralysis, and general paralysis. After general paralysis salivation was usually observed together with gasping breathing. Rats with the above clinical course were sacrificed. The clinical picture progressed rapidly after foreleg paralysis. The toxic clinical course was observed in 100% of rats in Group 2 (organophosphate + SF) and Group 3 (Organophosphate +LET) and its mortality rate was high. No significant difference was observed between both groups with respect to time to symptom onset. This may be interpreted as that LET treatment alone was not effective. Conclusion: In the present study we did not observe any beneficial effect of LE treatment alone on mortality of organophosphate intoxication. According to our results, however, it may be beneficial when used in conjunction to Classical therapy. Considering its relatively low side effect profile and pros and cons, we believe that it can be used as a supportive therapy in organophosphate poisoning.
Is Human Papillomavirus and Helicobacter pylori Related in Gastric Lesions?
(2019) Bozdayi, GUlendam; Dinc, Bedia; Avcikucuk, Havva; Turhan, Nesrin; Altay-Kocak, Aylin; Ozkan, Secil; Ozin, Yasemin; Bostanci, Birol; 31625359
Background: Human papillomavirus (HPV), the causative agent of cervical cancer, is also suggested as a risk factor for gastric adenocarcinoma. Many infectious agents besides Helicobacter pylori have been associated with gastritis. The aim of this study was to investigate HPV DNA and genotyping HPV type 16 DNA in gastric adenocarcinoma and Helicobacter pylori gastritis cases. Methods: A hundred and six gastric adenocarcinoma and Helicobacter pylori gastritis samples and 26 controls were included. After deparaffinization by xylene, DNA extraction was performed by the phenol-chloroform-isoamyl alcohol method and 106 samples were studied with a G6PDH control kit (Eurogentec, Seraing, Belgium). Fifty-three adenocarcinoma and 43 Helicobacter pylori samples were thought to have enough tissue and were studied for HPV DNA. HPV types other than 16 and HPV type 16 DNA were detected by Real Time PCR using the L1 region. Amplifications of MY09/11 products were done by GP5+/GP6+ primers and Cyanine-5 labeled HPV DNA and HPV 16 DNA specific probe in Light Cycler 2.0 (Roche Diagnostics, Germany) device. Results: Among gastric adenocarcinoma and Helicobacter pylori gastritis samples, 20/53 (38%) and 18/43 (41.8%) were HPV DNA positive, respectively. Five (19.2%) of 26 controls were HPV DNA positive. Conclusions: Our 38% positive result in the gastric carcinoma group is in concordance with previous reports. This is the first study revealing the HPV-H. pylori relationship in gastritis cases and we concluded that with regard to the nearly three-fold higher HPV DNA (41.8%) in gastritis cases compared to controls, Helicobacter pylori positive cases should also be evaluated in favor of HPV in the gastritis group.
Protective Effects of Oral Lactobacillus rhamnosus on Liver Steatosis in Rats on High-Fat Diet
(2021) Ozbek, Sevan Cetin; Saka, Mendane; Turhan, Nesrin; Istar, Elven Hortac; Mirza, Cenk; Bayraktar, Nilufer; Ok, Mehtap Akcil
The purpose of this study was to investigate the effect of probiotic on fatty liver and metabolic endotoxemia in rats on high-fat diet. The rats were divided into three groups and fed one of the three diets (standard or control diet, high-fat diet, or high-fat + probiotic diet) for 16 weeks. At the end of this period, blood samples of the rats were taken and the liver tissue was removed for histopathology. There was an increase in the activities of both aspartate aminotransferase and alanine aminotransferase in the livers of rats on high-fat diet. However, only the rise in aspartate aminotransferase was blunted by incorporation of probiotics to the high-fat diet. Histopathological examination revealed 62.5% hepatosteatosis in high fat diet group and 12.5% in high-fat + probiotic diet group. In conclusion, the protective effect of probiotic supplement on liver steatosis caused by high-fat diet was histopathologically demonstrated; however, its effect on liver enzymes, inflammatory markers, and metabolic endotoxin was not observed. There is a need for further studies in terms of both dose and strain to recommend the use of probiotics in nonalcoholic fatty liver disease.
A Retrospective Evaluation of the Epithelial Changes/Lesions and Neoplasms of the Gallbladder in Turkey and a Review of the Existing Sampling Methods: A Multicentre Study
(2018) Ozgun, Gonca; Esendaglı, Guldal; Akarca, F. Goknur; Balci, Serdar; Argon, Asuman; Sengiz Erhan, Selma; Turhan, Nesrin; Ince Zengin, Neslihan; Hallac Keser, Sevinc; Celik, Betul; Bulut, Tangul; Abdullazade, Samir; Erden, Esra; Savas, Berna; Bostan, Temmuz; Sagol, Ozgul; Aysal Agalar, Anil; Kepil, Nuray; Karslioglu, Yildirim; Gunal, Armagan; Markoc, Fatma; Saka, Burcu; Ozdamar, Sukru Oguz; Bahadir, Burak; Kaymaz, Esin; Isik, Emre; Ayhan, Semin; Tuncel, Deniz; Ozguven Yilmaz, Banu; Celik, Sevinc; Karabacak, Tuba; Erbarut Seven, Ipek; Ataizi Celikel, Cigdem; Gucin, Zuhal; Ekinci, Ozgur; Akyol, Gulen; 28984336
Objective: As there is continuing disagreement among the observers on the differential diagnosis between the epithelial changes/lesions and neoplasms of the gallbladder, this multicentre study was planned in order to assess the rate of the epithelial gallbladder lesions in Turkey and to propose microscopy and macroscopy protocols. Material and Method: With the participation of 22 institutions around Turkey that were included in the Hepato-Pancreato-Biliary Study Group, 89,324 cholecystectomy specimens sampled from 2003 to 2016 were retrospectively evaluated. The numbers of adenocarcinomas, dysplasias, intracholecystic neoplasms/adenomas, intestinal metaplasias and reactive atypia were identified with the review of pathology reports and the regional and countrywide incidence rates were presented in percentages. Results: Epithelial changes/lesions were reported in 6% of cholecystectomy materials. Of these epithelial lesions, 7% were reported as adenocarcinoma, 0.9% as high-grade dysplasia, 4% as low-grade dysplasia, 7.8% as reactive/regenerative atypia, 1.7% as neoplastic polyp, and 15.6% as intestinal metaplasia. The remaining lesions (63%) primarily included non-neoplastic polypoids/hyperplastic lesions and antral/pyloric metaplasia. There were also differences between pathology laboratories. Conclusion: The major causes of the difference in reporting these epithelial changes/lesions and neoplasms include the differences related to the institute's oncological surgery frequency, sampling protocols, geographical dissimilarities, and differences in the diagnoses/interpretations of the pathologists. It seems that the diagnosis may change if new sections are taken from the specimen when any epithelial abnormality is seen during microscopic examination of the cholecystectomy materials.