introduction: the objective of this study was to evaluated effect of retinoic acid (ra) on the tibia osteogenesis in the chick embryos. materials and methods: for this purpose 0.75mg ra dissolved in 2ml dimthylsulfoxide (dmso) was droped on the limb bud of chick embryos at sixth day of incubation. the osteogenesis of tibia in ra-treated embryos were compared with normal control and dmso-treated...

background: testicular torsion is a medical emergency with catastrophic sequelae that deserves the same treatment considerations and concerted efforts in research as any other complicated medical condition. the aim of this study was to investigate the effect of pausinystalia macroceras (pm) bark extract on sperm quality and serum testosterone levels in testicular torsion in a rat model. methods...

  Torsion of the gallbladder is a relatively rare surgical disease which mimics acute cholecystitis' symptoms that usually would not be respondable to medical therapies. The torsion would mostly be diagnosed intra-operatively. Cholecystectomy is the treatment of choice. In general in our centre, General Surgery department, Imam Reza hospital, Mashhad, Iran, since 1986 over 14000 cholecystect...

a result of dixon‎, ‎evans and smith shows that if $g$ is a locally (soluble-by-finite) group whose proper subgroups are (finite rank)-by-abelian‎, ‎then $g$ itself has this property‎, ‎i.e‎. ‎the commutator subgroup of $g$ has finite rank‎. ‎it is proved here that if $g$ is a locally (soluble-by-finite) group whose proper subgroups have minimax commutator subgroup‎, ‎then also the commutator s...

Infantile tibia vara is a deformity of abrupt angulation into varus due to an affection of the postromedial aspect of the proximal tibial physis. The deformity often includes internal tibial torsion and limb length discrepancy. Gradual correction of the deformity is currently the treatment of choice for these challenging cases as it requires less invasive surgery, allows progressive and adjusta...

The disuse-related bone loss that results from immobilisation following injury shares characteristics with osteoporosis in post-menopausal women and the aged, with decreases in bone mineral density leading to weakening of the bone and increased risk of fracture. The aim of this study was to use the finite element method to: (i) calculate the mechanical response of the tibia under mechanical loa...

introduction hemangioma is the most common benign tumor of the liver. most cases are asymptomatic and do not require treatment. a hemangioma can rarely be pedunculated; as a result, it may undergo torsion and infarction, which can make it symptomatic. case presentation we report the case of a 45-year-old woman with acute abdominal pain due to torsion of a giant pedunculated hepatic hemangioma a...

torsion of the gallbladder with gangrene is a rare condition which is generally due to an abnormal anatomical variation of the organ i.e., loss of fixation of the organ to the inferior margin of the liver and the presence of a long meso cyst. the case considered is a seven year old boy who presented with acute abdominal pain. he underwent laparotomy 36 hours after having sustained blunt abdomin...

Torsion of elastic and poroelastic circular shaft of radially inhomogeneous, cylindrically orthotropic materials is studied with emphasis on the end effects example for extruder. To examine the conjecture of Saint-Venant’s torsion, we consider torsion of circular shaft with one end fixed and the other end free on which tractions that results in a pure torque are prescribed arbitrarily over the fr...