2,919 Result(s)

Article

Use of Tetrazolium Compounds in Oxidative Enzyme Histo- and Cyto- chemistry

A NEW tetrazolium salt previously synthesized has been evaluated for its ability to overcome the technical and theoretical barriers of either the MTT-Co (ref. 1) or nitro-BT methods^2,3. This compound is TNBT or 2...

C. G. ROSA, KWAN-CHUNG TSOU in Nature (1961)

Article

Demonstration of the Sjöstrand Membrane Particles by an Electron Cytochemical Method

RECENTLY, several reports^1–3 have appeared which convincingly demonstrate that certain membrane systems of the cell are composed of a sub-unit structure somewhat out of accord with the classical triple-layered un...

CHARLES G. ROSA, KWAN-CHUNG TSOU in Nature (1965)

Article

Enzymatic Synthesis of Cyclo propane Fatty Aldehydes

FATTY aldehydes containing a cyclopropane ring have been isolated after acid methanolysis of the phospholipids obtained from Clostridium butyricum. 36 per cent by weight of the fatty aldehydes contained a cyclopr...

ALBERT E. CHUNG, HOWARD GOLDFINE in Nature (1965)

Article

Isolation and Amino-acid Sequence of β-LPH from Sheep Pituitary Glands

SEVERAL adenohypophyseal hormones have been demonstrated to possess in vitro lipotropic activity; these include growth, adrenocorticotropic, thyrotropic, α-melanocyte-stimulating and β-melanocyte-stimulating horm...

CHOH HAO LI, LIVIO BARNAFI, MICHEL CHRÉTIEN, DAVID CHUNG in Nature (1965)

Article

Antibacterial Nature of Prostatic Fluid

Human and canine prostatic fluid is bactericidal for a number of Gram negative and Gram positive bacteria. The fraction responsible for this effect is heat stable, of low molecular weight and is inactivated by...

T. A. STAMEY, W. R. FAIR, M. M. TIMOTHY, H. K. CHUNG in Nature (1968)

Article

Moving Particles in Intact Sieve Tubes of Heracleum mantegazzianum

RECENTLY reports have been published of microscopic particles moving along strands in the sieve tubes of cut sections of Primula obconica^1,2. This movement has suggested that protoplasmic streaming may be the mec...

D. S. FENSOM, R. CLATTENBURG, T. CHUNG, D. R. LEE, D. C. ARNOLD in Nature (1968)

Article

Transplantation of Radiation-induced Canine Myelomonocytic Leukaemia

AN important variant of leukaemia in man is the myelomonocytic form¹, the exact nature of which is still unclear, for the only available model for studies of this disease is the mouse². We have developed a canine...

MOSHE SHIFRINE, MARIE S. BULGIN, NANCY E. DOLLARHIDE, H. G. WOLF, NANCY J. TAYLOR… in Nature (1971)

Article

Effects of 6-Hydroxydopamine on Sleep in the Rat

THERE is evidence that biogenic amines are involved in the mechanisms of sleep^1,2. Although the exact relationship is not clear, recent results suggest that decreases in the concen-tration of catecholamines (nora...

ERNEST HARTMANN, RICHARD CHUNG, PAUL R. DRASKOCZY, JOSEPH J. SCHILDKRAUT in Nature (1971)

Article

Isolation of a New Cardiotoxic Protein from the Edible Mushroom, Volvariella volvacea

THE cyclic toxic peptides, phalloidins and amanitins, have been isolated from Amanita phalloides; they caused violent emesis and diarrhoea or even death 10 to 24 h after ingestion^1,2. Their chemical structures ha...

JUNG-YAW LIN, TZYY-WEN JENG, CHENG-CHUNG CHEN, GUEY-YUEH SHI, TA-CHENG TUNG in Nature (1973)

Article

An electrophysiological study of the hippocampus of the ‘reeler’ mutant mouse

THE laminar organisation of neurones in the brain of the homozygous ‘reeler’ mutant mouse¹ is grossly disrupted, especially in the cerebellum, hippocampus and neocortex^2–6. Although a number of histological studi...

T. V. P. BLISS, S. H. CHUNG in Nature (1974)

Article

Cardiotoxic protein from edible mushrooms

THE cardiotoxic protein volvatoxin has been isolated from the edible mushroom, Volvariella volvaceae¹. We have now isolated another cardiotoxic protein from the edible mushroom Flammulina velutipes (Curt. ex Frie...

JUNG-YAW LIN, YIE-JANE LIN, CHENG-CHUNG CHEN, HUA-LIN WU, GUEY-YUEH SHI… in Nature (1974)

Article

Denervation and re-innervation

Shin-Ho Chung in Nature (1975)

Article

Analysis of membrane noise

Shin-Ho Chung in Nature (1975)

Article

Synaptic remodelling in the mutant cerebellum

Shin-Ho Chung in Nature (1975)

Article

Organisation of the mammalian tectum

Shin-Ho Chung in Nature (1975)

Article

Polarity of structure and of ordered nerve connections in the develo** amphibian brain

Tectal polarity for retinal connections remains reversible long after the anatomical pattern of neural structures has been determined. Cells in the diencephalon seem to control this polarity. Following certain...

Shin-Ho Chung, Jonathan Cooke in Nature (1975)