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Macrophages play crucial roles in innate immunity. This paper reports that a polysaccharide-protein complex isolated from Lycium barbarum (LBP) is able to activate macrophages. LBP was isolated from Lycium barbarum fruit and separated to five homogenous fractions, designated LBPF1, LBPF2, LBPF3, LBPF4 and LBPF5. It was found that LBP (50 mg/kg, i.p.)(More)
Transient global amnesia (TGA) is an uncommon syndrome of recent memory deficit and inability to learn new data, usually resolving within 24 h. Two cases following use of non-ionic contrast media in cerebral angiography are described. The neuroanatomy of memory is reviewed. Possible aetiologies of TGA in relation to cerebral angiography include ischaemia(More)
This study reviews the clinicoradiological features of cranial and sacrospinal chordomas and identifies factors affecting survival. Nineteen patients seen between January 1980 and December 2000 with histopathological diagnosis of chordomas were retrospectively reviewed with reference to clinical presentation, imaging features, treatment modalities and(More)
BACKGROUND Nasopharyngeal carcinoma (NPC) is associated closely with Epstein-Barr virus (EBV). The authors previously reported that an EBV immediate-early gene, BRLF1, was expressed frequently in NPC tumors, and a significant elevation in immunoglobulin G (IgG) antibodies directed against BRLF1 gene product Rta was detected in NPC sera by a radioactive(More)
PURPOSE To assess the utility of spiral computed tomography (CT) with three-dimensional reconstruction in defining aneurysms of the Circle of Willis. METHODS Eighty-one patients with angiographic or surgical correlation were studied between 1993 and 1995, with surface rendered reconstructions of the arteries of the Circle of Willis. RESULTS Spiral CT(More)
Nasopharyngeal carcinoma (NPC) is tightly associated with Epstein-Barr virus (EBV) infection and a heavy infiltration of lymphoid cells in the tumor tissue. Although various lines of evidence have shown that the immune systems of NPC patients have the potential to attack the tumor cells, it is not yet understood how this potential is blocked. In this study(More)
A 10 year old Vietnamese girl presented with clinical features of an acute encephalitic process. A cerebral angiogram performed to rule out vasculitis showed narrowing at the supraclinoid internal carotid and terminal basilar arteries. A diagnosis of rabies was established at autopsy. Although the major blood vessels and basal meninges were normal it was(More)
The aim of this study was to compare the efficacy of plain films and computed tomography (CT) in defining inferior orbital fractures and any muscle involvement. Forty-four patients with final diagnosis of orbital floor fractures in the period 1990-94 were retrospectively studied. Computed tomography was performed in 28 patients, 20 being direct coronal(More)
Symptomatic ossification of the posterior longitudinal ligament (OPLL) of the cervical spine is a rare but well-documented condition. It is the causative factor in up to 5% of cases presenting with cervical radiculopathy or myelopathy. Computed tomography is the modality of choice in showing the distinctive characteristics and extent of the disease.(More)
A diabetic man suffering from a hypoglycaemic attack presented to our hospital. Magnetic resonance imaging (MRI) findings were grossly abnormal and difficult to interpret. The computed tomographic appearance simulated multiple infarctions. The MRI appearance simulated a space occupying lesion. Literature review of the radiology and the pathophysiology of(More)