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Öğe Effects of hyperbaric oxygen therapy on rat facial skin(Sage Publications Ltd, 2016) Sula, B.; Ekinci, C.; Ucak, H.; Ucmak, D.; Akkurt, Z. M.; Aktas, A.; Arica, M.Introduction: We used immunohistochemistry to investigate the histopathologic effects of hyperbaric oxygen (HBO) on the facial skin of rats. Material and methods: Rats in the HBO group (n = 6) were placed in a 20 L HBO chamber at 2.5 atmospheres absolute at 25-26 degrees C with 100% oxygen for 90 min/day for 7 days. Following euthanasia, sections of facial skin were removed for examination. Results: Epidermal hyperplasia and degeneration, basal-cell hypertrophy, subepithelial fibrosis, and increased connective tissue were observed in the HBO group. E-cadherin expression was reduced in the epidermis, hair follicles, and sebaceous glands in HBO-treated rats relative to control animals. HBO treatment was associated with vimentin immunoreactivity in fibroblasts, endothelial cells, and the bulbus pilorum of a subset of hair follicles. It also resulted in increased type IV collagen expression within the connective tissue in the hair follicles and sebaceous glands. Conclusion: The HBO group demonstrated epidermal hyperplasia and degeneration, basal-cell hypertrophy, and subepithelial fibrosis. In addition, HBO decreased E-cadherin expression, which suggests that HBO may impair intracellular adhesion. Expression of vimentin and type IV collagen was also observed in the dermis. Increased connective tissue, hemorrhage, and mononuclear cell infiltration were observed in the dermis of HBO-treated animals. Thus, HBO has effects on the structures of the epidermis and dermis.Öğe EFFECTS OF MANGANESE ETHYLENE-BIS-DITHIOCARBAMATE (MANEB) ON RAT NASAL RESPIRATORY MUCOSA(Carbone Editore, 2013) Deveci, E.; Yorgancilar, E.; Ekinci, C.; Koparal, M.; Akkus, Z.; Yavuz, D.Maneb (Mn-ethylene(bis)dithiocarbamate is a dithiocarbamate pesticides. It is a fungicide pesticide used in the control of mildew disease on certain crops. In general, dithiocarbamates are considered chemicals of low toxicity for humans. However, the effects of maneb in humans are diverse. It has some effects to humans via absorption through skin and respiratory system. The nasal mucosa is the first part of the airways in contact with the environment and toxic agents. The aim of this study was todetermine the histopathological effects of numb on nasal mucosa. In experimental group, the maneb was administered with inhalation to 10 male Wistar-Albino rats for five days a week. The control group (n=10) received distilled water with spray at the same time period. The experiment was terminated after three weeks. In each case, sections of the nosewere taken. In experimental group,microscopic examination of nasal respiratory mucosa revealed; Hypertrophy of epithelial cells and goblet cells, increasing of mucus secretion, decreasing in sizes of cilia and flattening of the cells near the basement membrane and apoptotic cells in the degenerated respiratory epithelial cells, detected a mild inflammatory reaction and a vascular dilatation in the connective tissue. All changes were statistically significant. In control group of 10 rats no significant histopathologic lesions were found. As a result, our study, maneb is potentially toxic agent to respiratory mucosa.Öğe The Effects of Maternal Low Protein and Estrogen on Sexual Behavior and Testicular Maturation in Male Rats(Soc Chilena Anatomia, 2015) Kavak, V; Balsak, D.; Togrul, C.; Deveci, E.; Ekinci, A.; Ekinci, C.; Babacan, E.In recent years, disorders related to the development and function of the male reproductive tract has increased, thus generating a surprising decrease in semen volume and sperm count. We examined the effects of low protein and estrogen on sexual behavior and testicular maturation in male rats. We also examined FSH, LH and testosterone levels and histological damage of testis tissue. The male rats were subjected to standard long-term treatment with estradiol by oral and paranteral delivery. The number of mounts, copulatory efficiency and ejaculation latencies for the paranteral protein diet (PPD) group was significantly lower than those in a group nourished with a low protein diet (LPD) and oral protein diet (OPD) groups (P<0.05). Testes and epididymis sections were examined by four grades, according to the level of damage of epithelium in the testes and epididymis. Higher histological damage was also detected in the PPD group. In conclusion, the present study confirmed that unwanted estrogen effects were higher in the paranteral administered group on examination of sexual behavior and histological damage of epithelium in the testes and epididymis of male rats.Öğe Expression of Human Chorionic Gonadotropin (?hCG) in Pre-eclamptic Placenta(Soc Chilena Anatomia, 2015) Ekinci, C.; Tahaoglu, A. E.; Balsak, D.; Deveci, E.; Yavuz, D.; Togrul, C.; Karaman, E.This study aimed to assess association between preeclampsia with trophoblast cells and serum level of b-human chorionic gonadotropin (beta-hCG). Were compared 20 patients with preeclampsia and 20 control patients with respect to demographics, hematological parameters and the presence of trophopblast in placental samples. Patchy necrosis with loss of microvilli and gross thinning of the syncytium with distorted microvilli were seen in terminal villi of placentae of women with pre-eclampsia Syncytial cells at the molecular level crossings, especially at the level of beta hCG in conjunction with the changes in the preeclampsia was made on the histopathological changes to clarify the villi.Öğe Expression of VEGF and CD68 in the Placenta of Gestational Diabetic Mothers (Immunohistochemistry and Ultrastructural Study)(Soc Chilena Anatomia, 2015) Yavuz, D.; Balsak, D.; Ekinci, C.; Tahaoglu, A. E.; Togrul, C.; Goruk, N.; Aktas, A.Placental angiogenesis, is essential for embryonic and fetal development. In this study, 18 gestational diabetes mellitus and 22 control pregnancies were included. Gestational diabetes mellitus (GDM) groups compared to the control group significantly higher values were detected (p<0.01). The following histological results were assessed; villous immaturity, chorangiosis, presence of, sncytial knots, mononuclear cell infiltration ischemia and fibrinoid necrosis. To evaluate and compare the placental histology of normal and GDM pregnancies. placentas of pregnant women with gestational diabetes also in terms of angiogenesis and macrophages and ultratructural revealed by examining the possible relationship between fetal complications were investigated.Öğe Ultrastructural Effects of the Propineb on Brain of Fetuses During Rat Pregnancy(Soc Chilena Anatomia, 2014) Ekinci, C.; Tahaoglu, A. E.; Yavuz, D.; Deveci, E.; Aktas, A.; Yilmaz, T.; Yumusak, O.Propineb is a fungicide with a propylene-bis-dithiocarbamate structure. Pregnant Wistar rats were exposed to 400 ppm propineb concentrations in 5 ml distilled water, 5 days per week until the end of pregnancy. The rats were treated with propineb for 16 days and the brains of litter rats were sacrificed at first day of birth after which their brains were collected. Ultrastructural examination of the brains of the fetuses and propineb-treated pregnant females revealed a variety of histopathological effects. We suggest that mitochondrial damage may be an effective factor for neuron necrosis. These results supported the proposal that the exposure to fungicides such as propineb and to other naturally occurring compounds which inhibit mitochondrial function, may contribute to Parkinson's disease development.
