The aim of the present study was to analyse thirty chinchilla (Chinchilla lanigera) brains, injected with latex, and to systematize and describe the distribution and the vascularization territories of the middle cerebral artery. This long vessel, after it has originated from the terminal branch of the basilar artery, formed the following collateral branches: rostral, caudal and striated (perfor...

Modular theory predicts that hierarchical developmental processes generate hierarchical phenotypic units that are capable of independent modification. The vertebral column is an overtly modular structure, and its rapid phenotypic transformation in cetacean evolution provides a case study for modularity. Terrestrial mammals have five morphologically discrete vertebral series that are now known t...

Gliding adaptations in thoracopterid flying fishes represent a remarkable case of convergent evolution of overwater gliding strategy with modern exocoetid flying fishes, but the evolutionary origin of this strategy was poorly known in the thoracopterids because of lack of transitional forms. Until recently, all thoracopterids, from the Late Triassic of Austria and Italy and the Middle Triassic ...

We use mitochondrial and nuclear sequence data to show that three weakly electric mormyrid fish specimens collected at three widely separated localities in Gabon, Africa over a 13-year period represent an unrecognized lineage within the subfamily Mormyrinae and determine its phylogenetic position with respect to other taxa. We describe these three specimens as a new genus containing two new spe...

how to cite this article: barzegar m, sayadnasiri m, tabrizi a. epilepsy as a rare neurologic manifestation of oculodentodigitalis dysplasia. iran j child neurol 2012; 6(3): 39-43. oculodentodigitalis dysplasia (oddd) is an extremely rare inherited disorderinvolving the development of the face, eyes, teeth and limbs. in addition,some patients develop neurological problems mostly a spastic parap...

OBJECTIVE To describe a treatment and follow-up protocol for HIV patients with anal dysplasia or warts, which are at risk of malignant change. DESIGN An ongoing study of highly selected patients referred to a single surgeon. SETTING The Colorectal and HIV/AIDS Clinics, University of Ottawa, General Campus. PATIENTS Ninteen young men who presented with suspicious anal lesions and were refe...

Abstract Objective: To evaluate and compare the analgesic effects of caudal epidural administration of lidocaine (LIDO), caudal laser radiation and epidural lidocaine plus laser radiation in horses. Study design: A blinded, randomized, prospective, experimental cross-over study. Animals: Five healthy horses, 15.7 +/- 4.9 years of age, weighing 240 +/- 37 kg. Methods: The...

the rare form of skeletal dysplasia is thanatophoric dysplasia. the meaning for thanatophoric dysplasia is death bearing which is derived from greek word. it occurs 1in 20,000 to 50,000. it is mainly due to mutations in the fibroblast growth factor receptor 3gene. features of thanatophoric dysplasia are frontal bossing, prominent eyes, narrow thorax, protruded abdomen and bowed legs. the knowle...

The primary structures of the precursors of urotensin II (UII)-a and -7, neuropeptide hormones of the caudal neurosecretory system of the carp, Cyprinus carpio, have been determined by analyzing the nucleotide sequences of cloned DNAs complementary to the mRNAs encoding them. A cDNA library, constructed with poly(A)+RNA in the preterminal spinal cord, was screened using 3ZP-labeled synthetic ol...