The effect of amnio-allantoic fluid pH on the intestines: An experimental study in the chick embryo gastroschisis model

Background/Purpose: Prolonged exposure to amniotic fluid causes the intestinal changes such as serosal edema, thickening, fibrous coating, and adhesions in gastroschisis. The effect of amnio-allantoic fluid (AAF) pH on intestines was evaluated using a chick embryo gastroschisis model

IS IPSILATERAL TESTIS MANDATORY FOR THE OCCURRENCE OF CONTRALATERAL INTRATESTICULAR BIOCHEMICAL-CHANGES INDICATIVE OF HYPOXIA AFTER UNILATERAL SPERMATIC CORD TORSION

Experimental unilateral spermatic cord torsion has been shown to induce both ipsilateral and contralateral intratesticular biochemical changes indicative of hypoxia. An experimental study was conducted to see whether the presence of the ipsilateral testicular tissue is necessary for the occurrence of the biochemical changes in the contralateral testis. Male, adult, albino rats were divided into four groups each containing 10 rats. One group served to determine basal values of biochemical parameters indicative of tissue hypoxia, another group was subjected to unilateral spermatic cord torsion in the presence of ipsilateral testis; a further group was subjected to unilateral spermatic cord torsion after ipsilateral subepididymal orchiectomy, and the last group underwent unilateral subepididymal orchiectomy alone as control. Lactic acid, hypoxanthine and lipid peroxidation product levels which are biochemical indicators of tissue hypoxia were determined in testicular tissues and kidneys. All three parameters increased significantly in contralateral testes but not in kidneys after unilateral spermatic cord torsion both when the ipsilateral testis was present and absent (p < 0.05). It is concluded that the ipsilateral testis does not play a role in transmitting these contralateral changes after unilateral spermatic cord torsion. Impulse-triggering contralateral changes may arise from spermatic vessels or nerves

Congenital esophageal stenosis owing to tracheobronchial remnants: A case report

A 3.5-year-old girl who had congenital esophageal stenosis caused by tracheobronchial remnants without esophageal atresia or tracheoesophageal fistula is presented, The diagnostic difficulties are discussed. Copyright (C) 1997 by W.B. Saunders Company

REPERFUSION INJURY AFTER DETORSION OF UNILATERAL TESTICULAR TORSION

Reperfusion injury has been well documented in organs other than testis. An experimental study was conducted to investigate reperfusion injury in testes via the biochemical changes after unilateral testicular torsion and detorsion. As unilateral testicular torsion and varicocele have been shown to affect contralateral testicular blood flow, reperfusion injury was studied in both testes. Given that testicular blood flow does not return after 720-degrees testicular torsion lasting more than 3 h, the present study was conducted after 1 and 2 h of 720-degrees torsion. Adult male albino rats were divided into seven groups each containing ten rats. One group served to determine the basal values of biochemical parameters, two groups were subjected to 1 and 2 h of unilateral testicular torsion respectively, two groups were subjected to detorsion following 1 and 2 h of torsion respectively, and two groups underwent sham operations as a control. Levels of lactic acid, hypoxanthine and lipid peroxidation products were determined in testicular tissues. Values of these three parameters obtained from the sham operation control groups did not differ significantly from basal values (P > 0.05). All three parameters were increased significantly in both ipsilateral and contralateral testes after unilateral testicular torsion when compared with basal values (P 0.05, respectively). It is concluded that ipsilateral testicular torsion causes a decrease in perfusion not only in the ipsilateral but also in the contralateral testis. Additionally, detorsion following up to 2 h of 720-degrees torsion causes reperfusion injury in ipsilateral but not in contralateral testis