The aim of the study is to investigate the effects of pentoxifylline (PTX) on the renal tubular cell injury and stone formation in a hyperoxaluric rat model induced by ethylene glycol and its possible underlying mechanisms. The study was performed with 30 male Wistar rats and randomized into three groups of teen. The sham-control (group 1) received only drinking water orally. The EG/untreated (group 2) received drinking water containing 0.75% EG for 4 weeks orally. The EG/PTX treated (group 3) received drinking water containing 0.75% EG for 4 weeks orally and PTX. Urine and blood were collected to determine some parameters. The kidneys were also removed for histological examination. Serum and urinary parameters were significantly improved in the EG/PTX treated. In the EG/PTX-treated group, the MDA, TOS and MPO activity reduced and the TAS, SOD, CAT and GSH-Px activities were increased markedly compared with the group 2. In urine of the group 2 rats, a large number of CaOx crystals were displayed and most tubules that contained crystals were dilated and showed degeneration, necrosis, and desquamation of the lining epithelium. Only few CaOx crystals were r in EG/PTX-treated animal's urine. Mild tissue damage was observed in PTX-treated rats. iNOS expression was significantly elevated in the group 2. In contrast, in the EG/PTX-treated group, eNOS expression in renal tubular epithelial cells was increased. Current study indicates that PTX may partially reduce renal tubular injury resulting from hyperoxaluria-induced oxidative and nitrosative stress.

No abstract

Posterior crossbite is one of the most common craniofacial disorders in late-mixed or early permanent dentition. The prevalence of posterior crossbite in children was reported between 4% and 23%. 1 Rapid maxillary expansion (RME) is the gold standard in the treatment of maxillary transversal discrepancies. With the separation of the midpalatal suture in RME protocol, the arch length and the width of the maxilla are increased. Sutural expansion is followed by the active new bone formation at the midpalatal suture. 2 Hence, the factors

Over kaynaklı sklerozan stromal tümör genellikle otuz yaş altında görülen nadir tümörlerdendir. Solid ve belirgin damarsal yapıdan dolayı malignite düşünülebilmektedir. Olgumuz 17 yaşında anormal uterin kanama yakınması ile başvurmuş, alt karın ultrasonografisinde (USG) heterojen kistik kitle tespit edilmiştir. Bu makalede benign sklerozan stromal tümör olgusunun histopatolojik özellikleri ve ayırıcı tanısı sunulmuştur.

This study aims to biomechanically and histopathologically investigate the effects of methylene blue (MB) on preventing postoperative adhesion in chickens undergoing fullthickness flexor tendon incision. Materials and methods: This study was performed between June 2017 and June 2018 on Hubbard JA 57 type chickens (age, 6 months; weight, 2.2±0.3 kg). Sixty-four tendons were studied in 32 chickens, including 16 in the control group and 16 in the experimental group. The second and third finger flexor digitorum profundus tendons of the left foot of each chicken were repaired primarily after a full-thickness incision approximately 1 cm proximal to the distal adhesion area. In the control (n=32) and experimental groups (n=32), 0.25 mL of normal saline and 0.25 mL of 1% MB solutions were applied locally to the surgical site, respectively. The operated limb was immobilized using a circular cast. 16 chickens were randomly selected in each group and examined at the fourth week, and the remaining 16 chickens were examined at the sixth week. Thirty-two of these tendons were evaluated using the Tang histopathological adhesion classification system, and the other 32 were evaluated with a biomechanical pull system. Results: Adhesion was found to be less in the experimental group compared to the control group at the end of the fourth and sixth weeks both histopathologically and biomechanically. Furthermore, adhesion was significantly less in the experimental group at the end of the sixth week compared to the fourth week both histopathologically and biomechanically. Conclusion: Histopathological and biomechanical results show that MB, which has anti-inflammatory, antiseptic, antimicrobial and antioxidant effects, reduces adhesion during the healing process after tendon repair. We think that local MB application, particularly in surgeries performed after this type of injury, will be beneficial on early rehabilitation and functional results.

No abstract

Objective: To analyse partial and total gastrectomy specimen in items of immunohistochemical staining of the stem cell CD44 and CD133; and to determine their relationship to pathological stage, other clinicopathological prognostic parameters, and their predictive value.

Granuloma annulare (GA) is a benign, granulomatous cutaneous disease without clear etiology. Disseminated and drug induced granuloma annulare is a rare presentation. We present a 47-year-old woman with diffuse circular erythematous eruptions following treatment with levetiracetam. Her clinical and histopathological findings were compatible with the diagnosis of granuloma annulare. To the best of our knowledge, there is no previous report of this skin disease as a result of levetiracetam use. We report this case to highlight this antiepileptic drug as a possible etiologic agent in disseminated granuloma annulare.