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Introduction: The use of complementary and alternative therapy is increasing and touch is one of them but several studies have indicated that premature neonates hospitalized in neonatal intensive care unit receive very little touch. The purpose of this research was to determine the effect of touch on arterial blood oxygen saturation in neonates with respiratory distress syndrome. Materials and Methods: This is a clinical trial with repeated measures that was performed on 37 neonates with respiratory distress syndrome. An information record form was used for data collection. The information record form was consisted of two parts: demographic information and a table for recording oxygen saturations. Oxygen saturation was measured by Nelkor pulse oxy meter. Information was collected in 3 sequential days. Arterial blood oxygen saturation was controlled 5 minutes before touch, then samples undergone 5 minutes touch and then in 5 and 15 minute intervals arterial blood oxygen saturation was controlled again. Data was analyzed using repeated measure ANOVA. Results: Findings showed that in the first day, arterial blood oxygen saturation in 5 minutes before, and 5 and 15 minutes after touch were 95/67, 95/91, 96 respectively. In second day, arterial blood and oxygen saturation in 5 minutes before, and 5 and 15 minutes after touch were 95/72, 96/05, 96/08 respectively. In third day, arterial blood oxygen saturation in 5 minutes before, and 5 and 15 minutes after touch were 95/75, 96/16, 96/13 respectively. Arterial blood oxygen saturation in 5 and 15 minutes after touch were more than 5 minutes before touch in each 3 day(p<0.01). But there was no significant difference between 5 and 15 minutes after touch. Data analysis also showed no significant difference comparing arterial blood oxygen saturation in the 3 days. Conclusion: Findings suggested that premature neonates physiologically responded to touch. Nurses working in NICUs must be educated about the importance of touch in providing care for these neonates. Findings showed that touch is useful for premature neonates and this fact can be a start point for other investigations.

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Introduction: Despite different methods implemented, surgical wound infection is still an important cause of mortality and morbidity of patients which impose a considerable cost on health care system. According to recent data, administration of supplemental oxygen during operation can reduce the risk of wound infection due to increased tissue oxygenation and therefore better elimination of bacteria by oxidative killing. This study is done to investigate the effect of administered oxygen ratio on the incidence of wound infection in clean-contaminated surgery. Materials and Methods: This is a double blind clinical trial. 584 patients from both sexes between 18 to 60 years old, who were condidated for clean-contaminated surgery were divided into two equal groups randomly. One recived 80% and the other 40% FIO2 during anesthesia. The frequency of wound infection between the two groups was assessed during a two weeks period. Results: Of patients receiving 80% FIO2, 11 (3.9%) patients, and the group recieving 40% FIO2, 25(8.1%) patients had wound infection (p<0.05). Conclusion: This study similar to previous studies showed the positive effect of supplemental oxygen in decreasing risk of surgical wound infection. Therefore according to the low risk and low cost and effectivness of this method in patients undergone surgery, it is recommended in clean-contaminated surgery.

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Background: Nowadays, the use of inflammatory biomarkers in the diagnosis of appendicitis is on the rise. On the other hand, the role of oxygen free radicals in various inflammatory states has been verified. Noticing the high prevalence of negative appendectomy (9.3-22.2%), the aim of this study was to investigate the level of blood total antioxidant capacity (TAC) as a biomarker for early diagnosis of acute appendicitis. Materials and Methods: In this prospective analytical trial, over a one-year period, 407 patients, with preoperative diagnosis of acute appendicitis who had undergone operation, were studied. After measuring the TAC level, data were analyzed through the analytic ROC curve and parametric mean comparison tests. Results: Of all the patients, 298 were identified with appendicitis. TAC levels in adult female and male groups were respectively 663.9±164.75 and 752.58±167.37 µm/L which revealed a significant difference (p<0.0001). Also, in children, the mean of TAC level in perforated appendicitis sub-group was significantly greater than those in gangrenous and suppurative groups. Conclusion: TAC level can be used as a predictive factor for the diagnosis of perforated appendicitis in children however, it cannot be used as a biomarker for the diagnosis of appendicitis. Because of the significant difference existing between the level of TAC in male and female patients, further studies are suggested to investigate the level of inflammatory biomarkers with respect to menstrual cycle in women.

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Background: There is growing evidence that damage to spermatozoa by reactive oxygen species (ROS) plays a key role in male infertility. This study was done to review the role of oxidative stress in male infertility. Materials and Methods: In this review article, PubMed, Scopus, and EBSCO-CINAHL databases were used for finding the relevant studies. Results: Under physiological conditions, a certain level of ROS is necessary for normal sperm function. However, an excessive level of ROS produced by leucocytes and immature sperms can cause damages to spermatozoa. Oxidative stress develops when there is an imbalance between ROS production and antioxidant defense system in male reproductive tract. High levels of ROS have been detected in the semen samples of 25-40% of infertile men. Oxidative stress can induce detrimental effects on standard seminal parameters and fertilizing capacity of spermatozoa. Conclusion: Oxidative stress can induce impaired sperm function that results in poor pregnancy rate in natural conditions and assisted reproduction.