Protective Effect of N-Acetylcystein and Resveratrol on Ischemia-Reperfusion Injury in Rat Ovary

Objective: The aim of this study is evaluating the protective activity of N-acetyl cysteine and resveratrol treatment against ischemia - reperfusion damage created experimentally in rat ovaries. Methods: 42 female Wistar rats were used in our study. Rats were separated randomly into six groups consisting of seven rats as sham, torsion, torsion- detorsion, torsion-detorsion+saline, torsion-detorsion+resveretrol (20 mg/kg) and torsion- detorsion+N-acetyl cysteine (150 mg/kg). Except Sham, ovarian torsion procedure was implemented to all other groups for 2 hours. Detorsion procedure was implemented to other groups for 2 hours, except the torsion group. Medications were given through intraperitoneal way half an hour before the detorsion procedure in saline (two milliliter), resveratrol (20 mg/kg) and N-acetyl cysteine (150 mg/kg) groups. Then, 2 ml of blood samples were drawn for markers of oxidative stress and tumour necrosis factor-alpha (TNF-α) work and the ovaries, which were torsioned for the histologic examination, were ex­tracted from all rats. Edema, congestion, hemorrhage, leuko­cyte infiltration and degeneration of follicles were evaluated by histopathological examination. Results: According to histopathologic damage scores, the least damage was seen in sham group and the most damage was seen T-DT group (1.00±0.81 vs. 11.00±1.15, respectively; p<0.001). It was seen that resveratrol and N-acetyl cysteine treatments were effective in decreasing tissue damage (total damage score average 83.85±0.89 vs. 3.85±0.89, respec­tively; p<0.001), and on the other hand there was not any dif­ference between resveratrol and N-acetyl cysteine treatments (p=0.966). Besides, it was determined that oxidative stress levels were higher in torsion - detorsion group and the resve­ratrol and N-acetyl cysteine treatment caused a significant de­crease in oxidative stress levels. In additionally, the reductions of TNF-α levels were found to be equally effective in both drugs (8.68±1.88 vs. 7.85±2.08, P=0.968). Conclusion: Presented study showed that resveratrol and N-acetyl cysteine treatment can be effective in preventing tissue damage and oxidative stress, which is induced by ischemia-reperfusion that is created in rat ovaries. On the other hand, no difference was found between the resveratrol and N-acetyl cysteine with regards to protective activity

Horizontal migration of pre- and postnatal mental foramen: An anatomic study

Objective: To evaluate the horizontal migration of the human mental foramen before and after birth

Length of the styloid process and anatomical implications for Eagle's syndrome

The styloid process is a bony projection, located just anterior to the stylomastoid foramen, the normal length of which is approximately 20-25 mm. Elongation of the process may cause various clinical symptoms such as neck and cervicofacial pain, described as Eagle's syndrome. The present study aimed to determine the mean length of the styloid process on cadavers, panoramic radiographs, and dry skulls, and to investigate the incidence of the elongated styloid process, while assessing the elongation in relation to Eagles syndrome. When the measurements from the panoramic radiographs were assessed, the mean length of the styloid processes in males and females on the right and left sides were found to be the following: 25.78 +/- 5.68 mm; 22.69 +/- 3.68 mm, 25.80 +/- 5.75 mm; and 22.75 +/- 3.65 mm, respectively. The males had greater styloid process lengths than the females, and the differences in length on both the right and left sides were statistically significant. Descriptive statistics and comparison results according to age groups were determined. There was no statistically significant difference between right or left styloid process lengths according to age groups. The mean length of the styloid process of the cadavers and dry bones was 22.54 +/- 4.24, and there was no significant difference between the right and left sides of the cadavers and dry bones. The incidence of the elongated styloid process was determined as 3.3%, and the elongations revealed a female dominance. The average length of the elongated styloid process was 36.06 +/- 6.12 mm, while the mean length of the styloid processes of the subjects reporting Eagle's syndrome was 40 +/- 4.72 mm. The results of this morphological study will assist clinicians in the diagnosis of Eagle's syndrome. (Folia Morphol 2009; 68, 4: 265-270

The Position of the Mandibular Canal and Histologic Feature of the Inferior Alveolar Nerve

The inferior alveolar nerve is the one of the large branches of the mandibular division of the trigeminal nerve. It is vulnerable during surgical procedures of the mandible. Despite its importance, no anatomical and histological examination has been conducted to provide a detailed cross-sectional morphology of the mandibular canal according to dental status. Therefore, the present study aimed to identify the position of the mandibular canal through direct measurement and to determine the branches of the inferior alveolar nerve through histologic examination. The area between the anterior margin of the third molar and the anterior margin of the second premolar of dentulous, partially dentulous, and edentulous hemimandible specimens (n = 49) from 26 human cadavers was serially sectioned into seven segments, and specific distances were measured using digital calipers. Following this, 5-mu m cross-sections were prepared along the mandibular canal and mental foramen, and examined by fluorescence microscopy. The mandibular canal was located at a mean distance of 10.52 mm above the inferior margin of the mandible. The mean maximum diameters of the mandibular canal, inferior alveolar nerve, inferior alveolar artery, and inferior alveolar vein were 2.52, 1.84, 0.42, and 0.58 mm, respectively. This study found that the inferior alveolar nerve often gives rise to several branches at each level (range 0-3). To minimize the risk of injury, knowledge of the small branches of the nerve and of the detailed findings regarding the position of the mandibular canal reported here should be considered when planning mandibular surgery, especially during implant placement. Clin. Anat. 23:34-42, 2010. (C) 2009 Wiley-Liss, Inc

The protective effects of perindopril against acute kidney damage caused by septic shock

mercantepe, tolga/0000-0002-8506-1755WOS: 000560266500001PubMed: 32803666Acute kidney injury (AKI) resulting from septic shock caused by sepsis is an important health problem encountered at rates of 55-73%. Increasing oxidative stress and inflammation following sepsis is a widely observed condition with rising mortality rates. the purpose of this study was to determine whether perindopril (PER) can prevent sepsis-associated AKI with its antioxidant, anti-inflammatory, and anti-apoptotic effects. the control group received an oral saline solution only for 4 days. Cecal ligation and puncture (CLP)-induced sepsis only was applied to the CLP group, while the CLP + PER (2 mg/kg) received CLP-induced sepsis together with 2 mg/kg PER via the oral route for 4 days before induction of sepsis. Finally, all rats were euthanized by anesthesia and sacrificed. TBARS, total SH levels and NF-kappa beta, TNF-alpha, and Caspase-3 expression were then calculated for statistical analysis. TBARS, total SH, NF-k beta/p65, TNF-a, and Caspase-3 levels increased in the CLP group. in contrast, oral administration of PER (2 mg/kg) to septic rats reduced TBARS levels and NF-k beta/p65, TNF-alpha, and Caspase-3 immunopositivity at biochemical analysis. PER treatment appears to be a promising method for preventing sepsis-induced acute kidney injury through its antioxidant anti-inflammation and anti-apoptotic activities