background: in previous studies, the neuroprotective effect of 17&beta-estradiol; in diffuse traumatic brain injury has been shown. this study used ici 182,780, a non-selective estrogen receptor antagonist, to test the hypothesis that the neuroprotective effect of 17&beta-estradiol; in traumatic brain injury is mediated by the estrogen receptors. methods: the ovariectomized rats were divided in...

A combinatorial method is used to reconstruct a surface by integrating a field of surface normals. An affinity function is defined over pairs of adjacent locations. This function is based on the surface’s principal curvature directions, which are intrinsic and can be estimated from the surface normals. The values of this locally supported function are propagated over the field of surface normal...

The occurrence of altered brain glucose metabolism has long been suggested in both diabetes and Alzheimer’s diseases. However, the preceding mechanism to altered glucose metabolism has not been well understood. Glucose enters the brain via glucose transporters primarily present at the blood-brain barrier. Any changes in glucose transporter function and expression dramatically affects brai...

Introduction: Harmalol is a dihydrocarboline compound found naturally in several alcoholic beverages and medicinal plants. This study was designed to investigate the effect of harmalol on memory function and its possible mechanisms in a scopolamine-induced memory disorder model. Materials and Methods: Thirty five male mice were randomly divided into five (n=7) group: Control group )normal sali...

presented in the text can be readily appreciated by the informed layman without a complete comprehension of the mathematical treatment. The caliber of the theory and mathematics is unfortunately not reflected in its presentation, which is often brief and incomplete. This is a stimulating book and its chief value lies in its function as an introduction to theoretical biology and in the questions...

The brain is an important organ that controls all sensory and motor actions, memory, and emotions. Each anatomical and physiological modulation in various brain centers, results in psychological, behavioral, and sensory-motor changes. Alcohol and addictive drugs such as opioids and amphetamines have been shown to exert a great impact on brain, specifically on the hippocampus. Emerging evidence ...

This symposium on memory mechanisms did not stay as close to the relation between nucleic acid biochemistry and learning as its title and Magoun's excellent introduction might imply. Ribonucleic acids and the hippocampus hold joint sway. It is a questionable assumption that, in terms of known biochemistry, RNA has to be implicated to account for the stability of the trace. On one hand the argum...

describes the evolution of graph(u(·, t)) by its mean curvature in the direction of the unit normal with prescribed contact angle (given by cos−1 φ) at boundary. This problem has been studied by G. Huisken [3] for φ ≡ 0, that is, the surfaces have vertical contact angle at the boundary, and by Altschuler and Wu [1] for the case that n = 2 and Ω is strictly convex. The main result of [3] states ...

tematic evaluation of the RV in the pediatric population and want to encourage their research with new echocardiographic parameters, such as the RVWD. Their current work will enhance our knowledge about the normal RV functional pattern in childhood.1 I hope that with more and more available normal reference values and Z-scores for the pediatric population that quantification of RV function will...

background: opticin, as a member of small leucine rich proteoglycans (slrps), mainly expressed in human eyes. it is also expressed in human brain, ligament, liver and skin, but at lower levels than the eyes. in the present study, expression of opticin was studied in a variety of human cancer cell lines. materials and methods: in this basic study, human cancer cell lines including, a-172 (brain ...