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Biomedical subjects

G Araki

Publications and source records attributed to G Araki.

At least 19 recordsLinked to original sources
PubMed1991

Effects of eicosapentaenoic acid on plasma lipoprotein subfractions and activities of lecithin:cholesterol acyltransferase and lipid transfer protein.

The effects of 12 weeks eicosapentaenoic acid (EPA) administration (2.7 g/day) on plasma lipoprotein subfraction levels and on activities of lecithin: cholesterol acyltransferase (LCAT) and lipid transfer protein (LTP) were investigated. Plasma VLDL-C, VLDL-TG, VLDL-PL, VLDL-apo B, VLDL-apo C-II and VLDL-apo C-III levels were decreased by 32.8% (P less than 0.05), 31.2% (P less than 0.01), 31.5% (P less than 0.05), 32.5% (P less than 0.05), 34.7% (P less than 0.05) and 34.1% (P less than 0.05), respectively. EPA did not change plasma IDL-TC, IDL-TG, IDL-PL and IDL-apo B levels. Plasma large, light LDL (LDL1)-TC, LDL1-PL and LDL1-apo B levels were decreased by EPA by 18.7% (P less than 0.02), 19.1% (P less than 0.01) and 23.3% (P less than 0.01) while LDL1-TG level was not changed. Plasma small, heavy LDL (LDL2)-TC level was increased by 25.7% (P less than 0.02) while LDL2-TG, LDL2-PL and LDL2-apo B levels were not altered. Plasma HDL2-TC, HDL2-TG, HDL2-PL and HDL2-apo A-I levels stayed unchanged by EPA treatment. EPA did not affect plasma HDL3-TC, HDL3-PL and HDL3-apo A-I levels but decreased HDL3-TG level significantly (P less than 0.02). LCAT activity was not altered by EPA. LTP activity was increased by 24.8% at 4 weeks (P less than 0.02) and by 32.1% (P less than 0.001) at 12 weeks EPA treatment. We conclude that EPA reduces plasma large, light LDL levels as well as plasma VLDL amounts and stimulates LTP activities.

Adult↗
PubMed1990

[Syncope].

Explore the source record for details and available documents.

Arrhythmias, Cardiac↗
PubMed1989

[Case report: hemiballism due to a putaminal cavernous hemangioma].

A rare case of reversible hemiballism due to putaminal pathological process in a 51-year-old woman is described. She was hospitalized for evaluation of hemiballism and muscle weakness on the left side. A cranial computed tomography scan demonstrated a high density lesion in the right putamen with enhancement on delayed scan. Angiographic examination revealed no apparent abnormalities. Magnetic resonance imaging with T1 weighted showed a isodense lesion in the right putamen, while T2 weighted image revealed a ring like low signal area around a high signal lesion. These findings were compatible with the diagnosis of cavernous hemangioma. In order to establish the final diagnosis, CT-guided stereotaxic biopsy was carried out. But histological specimen showed only gliosis and calcification. Immediately after the biopsy, a small hemorrhage took place in the right putamen extending to the head of caudate nucleus head. Following this episode, hemiballism ceased, however, it gradually returned along with absorption of hemorrhage. The speculated pathophysiology of this on-and-off hemiballism was as follows; it initially developed as the result of suppression of inhibitory fibers from the striatum to the pallidum by a minor hemorrhage of putaminal cavernous hemangioma, and ceased by declining the activities of the pallidum due to interruption of excitatory fibers from the thalamus and the cortex to the striatum.

Brain Neoplasms↗
PubMed1986

Comparison of selectivity of LDL removal by double filtration and dextran-sulfate cellulose column plasmapheresis.

The possibility of selective removal of VLDL, IDL and LDL by double filtration (DF) and dextran-sulfate cellulose (DSC) column plasmapheresis was investigated in hypercholesterolemia. Two and a half liters of plasma were treated. Sixty six percent of TC and 68% of LDL-C were removed by DF plasmapheresis. The removal rate of HDL-C was 50% which was significantly lower than that of LDL-C. The removal rate of apoprotein A-I and A-II was also significantly lower than that of apoprotein B. Sixty percent of LDL-C and 61% of apoprotein B were removed by DSC column plasmapheresis while the decrease of HDL-C, apoprotein A-I and A-II was minimal. Therefore, DSC column plasmapheresis could remove atherogenic lipoproteins more selectively than DF plasmapheresis.

Adult↗
PubMed1979

[Arterial occlusion following cerebral vasospasm (author's transl)].

1. The present study analysed the clinical course, the serial angiograms and the CT scans of the patients with angiographic arterial occlusion following vasospasm after subarachnoid hemorrhage. The occlusion was observed in 6 out of 84 patients with vasospasm. 2. The angiograms which showed this phenomenon were obtained between the 11th and the 30th day of the illness. The affected vessels were the branches of middle cerebral artery. 3. Thrombus formed on the intima which had been injured by vasospasm is suspected to be a genesis of this arterial occlusion. The pathological findings of a case in this series support this concept. 4. The surgical procedure during the direct aneurysmal operation performed in the period of "smooth narrowing" seems to be a contributing factor to the arterial occlusion. There was no correlation between antifibrinolytic therapy and this phenomenon except in one case. 5. Fibrinolytic therapy after clipping of aneurysm may be a treatment of choice for this arterial occlusion following vasospasm.

Cerebral Angiography↗