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Biomedical subjects

D J Ye

Publications and source records attributed to D J Ye.

16 recordsLinked to original sources
PubMed2001

[Effects of different processing products of Cortex Phellodendri on scavenging oxygen free radicals and anti-lipid peroxidation].

OBJECTIVE: To investigate the effects of different processing products of Cortex Phellodendri on scavenging oxygen free radicals and anti-lipid peroxidation. METHOD: The oxygen free radicals generation system and mouse liver homogenate lipid peroxidation in vitro were used. RESULT: The aqueous and 80% alcohol extracts of raw, stir-fried, stir-fried with salt, stir-fried with yellow alcohol products of Cortex Phellodendri could scavenge superoxide radical(O2-.) generated through hypoxanthine-oxidase system and(.OH) generated through Fenton action, and inhibit lipid peroxidation induced by hydroxyl radical generation system, respectively. But the carbonized product has no effect. There are differences among these processed products. CONCLUSION: 80% alcohol extract of stir-fried with yellow alcohol products of Cortex Phellodendri was more intense.

Animals↗
PubMed1999

[Studies on stimulating components of raw Pinellia ternata (Thunb.) (banxia)].

OBJECTIVE: To study the stimulating components of raw Pinellia ternata (Banxia). METHODS: Used the methods of extracting with various organic solvents; x-ray fluorescence spectrometer; scanning electron microanalyzer; oxidation and reduction titrations; and ultraviolet spectrophotometry. RESULTS: Experiments showed that calcium oxalate hydrate (C2CaO4 x H2O) was one of the stimulating components of raw Pinellia ternata, and its shape, and contents related to the stimulation of raw Pinellia ternata. After processing, the shape and contents of calcium oxalate changed, decreased respectively, and the stimulation of Pinellia ternata decreased. CONCLUSION: The needle crystal of calcium oxalate is one of the stimulating components in raw Pinellia ternata.

Animals↗
PubMed1994

[The effect of Pinellia processed by ginger juice on gastric and intestinal function of animals].

The experimental research has shown that neither pinellia processed by ginger juice and alum nor pinellia boiled by ginger juice have any marked influence on the secretion of PGE2 in rat gastric juice, or on the activity of gastric proteinase in rats. Both the processed products of pinellia can obviously inhibit the gastric and intestinal motility in mice. Raw pinellia can strongly inhibit the secretion of PGE2, gastric acidity and gastric proteinase in rats, but acts not so heavily on their gastric secretion and appears rather harmful to the gastric mucosa in rats. Raw pinellia can also obviously accelerate the gastric and intestinal motility in rats.

Animals↗
PubMed1993

[The effect of stimulation and toxicity of rhizoma Pinelliae processed by ginger juice on animals].

Rhizoma Pinelliae boiled with ginger juice has less stimulation and toxicity on animals, which is similar to Rhizoma Pinelliae processed by alum solution. The effect of Rhizoma Pinelliae that has been immersed in ginger juice is not as good as that of the ginger-boiled. It was also observed that the stimulation of raw Rhizoma Pinelliae on mice could be reduced when the mice was given fresh or boiled ginger juice. The Rhizoma Pinelliae processed by ginger juice and alum has very little toxicity on mice.

Animals↗
PubMed1993

[Effect of processing on phospholipid of Dioscorea opposita Thunb].

A study of the chemical changes of phospholipid in crude and seven processed samples of Dioscorea opposita was carried out by molybdenum blue colorimetry and TLCS. The result shows that the total phospholipid content in the sample processed by honey bran comes out the highest (180.31 mg/100g).

Chromatography, Thin Layer↗
PubMed1993

[Effect of processing on the extraction of alkaloids from Strychnos].

Results of experiments showed that the contents of strychnine and brucine were about the same in decoction of Strychnos nux-vomica and S. pierriana, but the contents of vomicine, strychnine N-oxide and brucine N-oxide were greater in the former than in the latter. The contents of strychnine and brucine were greater under scalding with hot sand than deep-frying with sesame oil.

Alkaloids↗
PubMed1993

[Effect of different preparations of ginger on blood coagulation time in mice].

The experiments indicate that the decoction, ether extraction and suspension liquid of roasted ginger and charcoal of ginger all can markedly shorten the blood coagulation time in mice, while the decoction, ether extraction of fresh ginger and dry ginger cannot. The decoction of ginger charcoal has stronger effect than roasted ginger in shortening the blood coagulation time in mice. The effect of decoction of ginger charcoal on blood coagulation time tends to increase when the dosage is increased.

Animals↗
PubMed1989

[A research on the constituents of ginger in various preparations].

The constituents extracted by ether from ginger in different preparations were checked up by GC-MS-DS. The results are as follows: 25 constituents were found in fresh ginger; 22 in dry ginger, of which one had not been found in other forms of ginger; 23 in ginger roasted with sand in a pan, of which two had not been found in other forms of ginger; 23 in ginger charcoal, of which three had not been found in other forms of ginger. A comparison has been made of the content of the constituents in the ginger studied, and the result shows that some of the constituents have changed. All of the essential oil constituents in roasted ginger and ginger charcoal were reported for the first time.

Charcoal↗