Səhifə 1 dan 23 nəticələr
It is well accepted that dysfunction in the blood brain barrier (BBB) allows permeation of albumin from the bloodstream into astrocytic brain tumors, especially glioblastomas, the most aggressive astrocytomas. In vitro, bovine serum albumin (BSA) aids functional cell assays by maintaining cytokines
OBJECTIVE
Angiogenesis performs a critical role in the development of cancer. Angiogenesis research is a cutting-edge field in cancer research. Proteomics is a powerful tool in identifying multiple proteins that are altered following a neuropharacological intervention in a disease of the central
The biological effects of type IIA 14-kDa phospholipase A2 (sPLA2) on 1321N1 astrocytoma cells were studied. sPLA2 induced a release of [3H]arachidonic acid ([3H]AA) similar to that elicited by lysophosphatidic acid (LPA), a messenger acting via a G-protein-coupled receptor and a product of sPLA2 on
The present study explored the predictive value of systemic inflammatory indexes in diagnosing grade III gliomas of oligodendroglial origin.A retrospective study of 154 patients with grade III gliomas was conducted. Systemic inflammatory indexes, including Single photon emission computed tomography (SPECT) using technetium-99m-DTPA-human serum albumin (99mTc-HSA-D) and thallium-201 chloride (201Tl) was simultaneously performed on 25 patients with brain tumors; 10 with brain metastasis, 8 with astrocytoma (Gr. 3) and 7 with meningioma. The early image
Transthyretin (TTR), a transport protein for T4 and retinol-binding protein, is the principal T4-binding protein of cerebrospinal fluid. Its function in regard to the delivery of its ligands and in other respects is unclear. The binding of [125I] TTR to cultured human astrocytoma cells was studied
OBJECTIVE
Low-grade neuroepithelial tumors are frequent neuropathological findings in patients with pharmacoresistant epilepsies. Little is known regarding epileptogenic mechanisms in this group of neoplasms with gangliogliomas (GG) as the most common entity. Presence of hemosiderin deposits in GG
OBJECTIVE
The feasibility of measuring blood-brain barrier permeability was studied in a 36B-10 brain glioma model in rats.
METHODS
In stage I of our study, sequential MR images of glioma-implanted rats were obtained following intravenous administration of three contrast agents of different
An in vivo model for correlative imaging studies of intracerebral glial tumors and peritumor brain edema has been developed. Adult male and female cats implanted with 1 x 10(6) or 5 x 10(5) 9L glioma cells had parietal tumors of 4 mm or greater in diameter and showed signs of increased intracranial
Gangliosides are known to be suitable targets for immune attack against cancer but they are poorly immunogenic. Active immunization with ganglioside/BCG or liposome vaccines results in moderate titer IgM antibody responses of short duration. Covalent attachment of poorly immunogenic antigens to
The present investigation was conducted to examine the effects upon normal lymphocyte activation of the addition of brain-tumor cyst fluid or cerebrospinal fluid (CSF) to an in vitro culture system. It was believed that factors present in these fluids may play a role in local and systemic
Two-dimensional gel electrophoresis with silver staining was used to study protein patterns in various malignant human brain tumors obtained at surgery. These samples included 20 high-grade astrocytomas (anaplastic astrocytomas and glioblastomas), one low-grade astrocytoma, six juvenile
Recent reports have suggested that cyst formation accompanying astrocytomas in the central nervous system (CNS) is due to an edematous process caused by blood-brain barrier (BBB) disruption and not a result of necrosis. This study is performed to investigate whether the hypothesis of cyst formation
Metastatic carcinoma, which is a common malignant tumor seen in the central nervous system is often difficult to distinguish from glioblastoma multiforme. In general, neoplastic cells maintain fidelity in the expression of parent cell intermediate filament and immunohistochemistry remains the
Human glioma-associated markers can be exploited for the development of new diagnostic strategies and treatment modalities for these malignancies. A goat antiserum was first raised against human anaplastic astrocytoma (AC or AA) and glioblastoma multiforme (GB or GBM) extracts. Extensive sequential