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4 results about "Acute toxicity" patented technology

Acute toxicity describes the adverse effects of a substance that result either from a single exposure or from multiple exposures in a short period of time (usually less than 24 hours). To be described as acute toxicity, the adverse effects should occur within 14 days of the administration of the substance.

Liver protection composition containing glutathione-rich yeast and application of liver protection composition

The invention discloses a liver protection composition containing glutathione-rich yeast. The liver protection composition is prepared from the glutathione-rich yeast, turmeric, silybum marianum, enzymolysis polypeptide with homology of medicine and food and anti-inflammatory and anti-oxidation auxiliary components. Wherein the medicine and food homologous enzymolysis polypeptide is prepared from radix puerariae through neutral protease-cellulase double enzymolysis, the polypeptide sequence is identified as Leuu-Val-Glu-Pro-Ala, and the medicine and food homologous enzymolysis polypeptide has the capacity of remarkably inhibiting LPS-induced RAW264.7 cell NO release and removing DPPH free radicals. According to the composition, through multi-component synergism, in an anti-alcohol experiment, the blood alcohol concentration decline rate of a mouse can be remarkably increased, the MDA content of liver tissue is remarkably reduced, and no acute toxic reaction exists. The composition has the functions of protecting the liver and dispelling the effects of alcohol, is safe and effective, and is suitable for the field of health-care products or functional foods.
Owner:GUANGDONG CHANGXING BIOTECHONOLOGY CO LTD

Use of bioactive protein in preparation of drug for treating herpes virus infection and pharmaceutical composition for treating herpes virus infection

PCT designated stageWO2026036538A1Peptide/protein ingredientsAerosol deliveryHerpesvirus infectionHerpes zoster virus
Provided are use of a bioactive protein in the preparation of a drug for treating herpes virus infection and a pharmaceutical composition for treating herpes virus infection. The pharmaceutical composition mainly comprises a bioactive protein, a matrix, a humectant, a pH regulator, and a preservative. The present invention has the following technical effects: 1) By means of a large amount of research and experimental verification, the inventors have discovered for the first time that anhydridized lactoferrin, a modified bioactive protein, has an inhibitory effect on herpes zoster virus (VZV). 2) In the pharmaceutical composition, the type and amount of excipient and the proportion of the main ingredient are reasonable. The pharmaceutical composition is administered in ointment form, in spray form, or in other dosage forms suitable for external use, has a significant therapeutic effect, has small local toxic side effects, has very low acute dermal toxicity, causes no irritation or allergy, does not interfere with normal skin functions, and is safe and effective.
Owner:CHANG TIANAN +1

Double-drug liposome co-carrying oxymatrine and STING agonist prodrug as well as preparation method and application of double-drug liposome

The invention relates to a double-drug liposome co-carrying oxymatrine and an STING agonist prodrug as well as a preparation method and application of the double-drug liposome. The double-drug liposome comprises a drug carrier and oxymatrine, wherein the drug carrier consists of a membrane material; the oxymatrine is loaded in a hydrophilic inner cavity of the carrier; the membrane material is prepared from distearoyl phosphatidylcholine, distearoyl phosphatidyl ethanolamine-polyethylene glycol and a cholesterol-STING agonist prodrug conjugate; the cholesterol-STING agonist prodrug conjugate is a conjugate formed by coupling an STING agonist prodrug with cholesterol through a chemical bond. According to the invention, the traditional Chinese medicine active component oxymatrine and the STING agonist prodrug are creatively integrated into the same liposome, so that synergistic controlled release and mechanism complementation can be realized; wherein the STING prodrug is embedded into the carrier in a chemical bond coupling manner, so that drug leakage caused by physical entrapment is avoided, the acute toxicity of the free STING agonist is remarkably reduced, and meanwhile, the innate immune activation capability of the free STING agonist is enhanced.
Owner:THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA +1

Traditional chinese medicine composition for controlling obesity

PendingCN122140875AMetabolism disorderAerosol deliveryCommiphora myrrha resinAngelica Sinensis Root
The present application relates to the technical field of traditional Chinese medicine, and particularly relates to a traditional Chinese medicine composition for controlling obesity. The traditional Chinese medicine composition comprises Pueraria pedunculata, Lantana camara, Curcuma longa, Curcuma wenyujin, Curcuma roxburghii, Angelica sinensis, Boswellia carterii, Commiphora myrrha, Semen Persicae, Radix Polygoni multiflori and Rubus corchorifolius. The traditional Chinese medicine composition can effectively regulate blood fat by external use, thereby achieving the effects of improving obesity-related metabolic disorders and controlling obesity. In addition, the traditional Chinese medicine composition has no skin irritation when used externally, and has no acute toxicity at a dosage much higher than a clinical dosage, and is safe and reliable to use, and has a wide application prospect in controlling obesity.
Owner:DONGZHIMEN HOSPITAL OF BEIJING UNIV OF CHINESE MEDICINE