Light-Controlled Cytoplasmic Streaming in Vallisneria Mesophyll Cells

The effect of light irradiation on cytoplasmic streaming inVallisneria mesophyll cells was investigated. Red light (     

Hopenol-b,a triterpene alcohol from Euphorbia supina

In addition to the known triterpene motiol, hopenol-b (hop-22(29)-en-3β-ol) was isolated from the whole herb of Euphorbia supina. It has not been found previously in nature, though it has been prepared by both synthetic and biosynthetic methods.     

Fractal property of eye movements in schizophrenia

 On the basis of a temporal model of animal behavior we conducted temporal analysis of eye movements in schizophrenic subjects (n=10) and normal controls (n=10). We found a fractal property in schizophrenic subjects, the fixation time of eye movement during reading ambiguous and difficult sentences showing a clear inverse power law distribution. An exponential distribution of a nonfractal nature was found in normal controls. Received: 21 July 1995/Accepted in revised form: 30 April 1996     

Some Problems in the Assay Method of HMG-CoA Reductase Activity in Sweet Potato in the Presence of Other HMG-CoA Utilizing Enzymes

In addition to HMG-CoA reductase, another HMG-CoA utilizing enzyme is present in the Mt fraction of sweet potato root tissue and its activity interferes with the assay to HMG-CoA reductase activity.     

Unbudded G2 as well as Gj arrest in the stationary phase of the basidiomycetous yeast Cryptococcus neoformans

Abstract Stationary-phase cells of Cryptococcus neoformans displayed two morphological characteristics: virtually all the cells were unbudded even in the early stationary phase and even when grown in rich media, and average cell size increased from that of exponential-phase cells. DNA contents for small and large stationary-phase cells were determined by quantitative fluorescence microscopy after DNA staining with propidium iodide or DAPI. Small cells contained G, DNA, whereas large unbudded cells had either a G₂ or G₁ DNA content, indicating that Cr. neoformans can enter into the stationary phase from either the G₁ or G₂ period.     

Do you perform the multiple sleep latency test according to the guidelines? A case with multiple sleep onset REM periods

Sleep and Biological Rhythms - The patient was a 21-year-old male who complained of daytime sleepiness. His multiple sleep latency test (MSLT) showed multiple sleep onset REM periods (SOREMPs). The...     

Distribution of cis-Vaccenic Acid in Chinese Hamster V79-R Cells

V79-R Cells grown in lipid-free medium contained octadecenoic acids as the major fatty acids esterified to lipids. Octadecenoic acids were composed of two positional isomers, oleic and cis-vaccenic acids. The distribution of oleic and cis-vaccenic acids was altered by the addition of various fatty acids to the medium. There was no difference in the distribution of oleic and cis-vaccenic acids in phospholipids between mitochondria and microsomes. Cardiolipin contained higher amounts of palmitoleic and cis-vaccenic acids than did other lipids.     

Anti‐Tumor‐Initiating Effects of Spiro‐biflavonoids from Abies sachalinensis

Cancer chemoprevention, the prevention of cancer by ingestion of chemical agents that reduce the risk of carcinogenesis, is one of the potent ways to reduce morbidity and mortality. We have been searching for cancer chemopreventive agents from the leaves and barks of coniferous trees that have been treated as waste in the forestry industry. We have previously reported the isolation of spiro‐biflavonoids, named as abiesinols, and a neolignan from the MeOH extract of the bark of Abies sachalinensis. These compounds were tested for their inhibitory effects on the activation of (±)‐(E)‐methyl‐2‐[(E)‐hydroxyimino]‐5‐nitro‐6‐methoxyhex‐3‐enamide (NOR 1), a nitric oxide (NO) donor, as a primary screening test for anti‐tumor initiators. All compounds tested exhibited potent inhibitory effects on NOR 1 activation. Furthermore, abiesinol A, bearing a spiro‐biflavonoid skeleton, showed remarkable anti‐tumor‐initiating activity in the in vivo two‐stage mouse skin carcinogenesis test using peroxynitrite (ONOO^?; PN) as the initiator and 12‐O‐tetradecanoylphorbol‐13‐acetate (TPA) as the promoter.