阅读说明：本技术 卡拉胶在抗新型冠状病毒中的应用 (Application of carrageenan in resisting novel coronavirus ) 是由 宋爽 温成荣 董秀萍 朱蓓薇 艾春青 李冬梅 启航 袁龙 于 2020-06-18 设计创作，主要内容包括：本发明公开了卡拉胶在抗新型冠状病毒中的应用,属于生物医学技术领域。本发明证实了卡拉胶在62.5μg/mL及以上浓度能够抑显著制SARS-CoV-2病毒感染机体细胞。卡拉胶可用于制备用于预防或治疗冠状病毒感染的药物,包括喷雾剂、气雾剂、粉雾剂、洗剂、软膏剂、搽剂、喷鼻剂等。卡拉胶还可用于制备防护冠状病毒感染的防护用品,包括：洗手液、口罩滤芯、空气过滤器滤芯等。(The invention discloses an application of carrageenan in resisting novel coronavirus, belonging to the technical field of biomedicine. The invention proves that the carrageenan can inhibit SARS-CoV-2 virus from infecting organism cells obviously at the concentration of 62.5 mu g/mL or more. The carrageenan can be used for preparing medicines for preventing or treating coronavirus infection, including spray, aerosol, powder spray, lotion, ointment, liniment, nasal spray, etc. The carrageenan can also be used for preparing protective articles for preventing coronavirus infection, and comprises: liquid soap, a mask filter element, an air filter element and the like.)

1. Use of carrageenan in the manufacture of a medicament or a daily chemical product for the treatment or prevention of coronavirus infection.

2. Use according to claim 1, wherein the coronavirus comprises the novel coronavirus SARS-CoV-2.

3. The use according to claim 1, wherein the treatment or prevention of coronavirus infection comprises carrageenan to prevent the invasion of SARS-CoV-2 virus into cells of the body.

4. The use of claim 1, wherein the medicament further comprises a pharmaceutically acceptable excipient.

5. The use according to claim 1 or 5, wherein the medicament is in a dosage form comprising: spray, aerosol, powder spray, lotion, ointment, liniment, nasal spray, effervescent tablet, gargle, powder, emulsion, suspension, solution.

6. The use according to claim 1, wherein said commodity comprises: hand sanitizer, mask filter element, mouthwash and hand lotion.

7. A medicine for treating or preventing coronavirus infection, or nasal spray, hand lotion, mouth mask filter core, mouth wash or hand lotion, is characterized in that carrageenan is used as an active component for inhibiting coronavirus from entering body cells.

8. An inhalant for preventing coronavirus infection is characterized in that 30-50 g of sodium chloride, 70-120 g of citric acid, 70-120 g of sodium citrate and 0.5-2 g of benzalkonium chloride are respectively stirred and dissolved by 8-50 times of purified water in a sterile environment; stirring and dissolving 5-20 g of carrageenan by using 500mL of purified water; mixing the above solutions, diluting with purified water to 5-20L, filtering with 0.5 μm filter membrane, and packaging.

9. A mask filter element for preventing coronavirus infection is characterized in that 1-3g of PVA, 8-12g of PET, 40-60mg of xylometazoline hydrochloride and 0.5-1.0mg of NaCl are added into 100mL of carrageenan aqueous solution with the concentration of 0.005-0.2g/mL, and the mixture is stirred in water bath at 80-95 ℃ for 20-40 min; spinning the obtained viscous solution on non-woven fabric by adopting an electrostatic spinning method to prepare a carrageenan film which is used as a carrageenan mask filter element; the working voltage of the electrostatic spinning method is 10-20kV, the working time of the electrostatic spinning is 1.5-4h, and the spraying distance is 10-30 cm.

10. A no-wash hand sanitizer for preventing coronavirus infection is characterized by comprising the following components in percentage by weight: 45-60% of 75% ethanol, 1-3% of glycerol, 4-8% of hydroxyethyl cellulose, 0.05-0.1% of sodium citrate, 1-2% of lauric acid diethanolamide, 5-10% of vitamin E, 2-4% of citrus oil and the balance of 0.005-0.2g/mL of carrageenan aqueous solution.

Technical Field

The invention relates to an application of carrageenan in resisting novel coronavirus, belonging to the technical field of biomedicine.

Background

The novel coronavirus (2019-nCoV) is formally classified and named as Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and is called novel coronavirus (novel coronavirus) for short. After people are infected with coronavirus, the common signs of the person are respiratory symptoms, fever, cough, shortness of breath, dyspnea and the like. In more severe cases, the infection can lead to pneumonia, severe acute respiratory syndrome, renal failure, and even death.

After entering the body through the skin mucosa, the new coronavirus is combined with an angiotensin converting enzyme 2 (ACE 2 for short) receptor on a cell through a spike protein (S protein for short) on the surface of the virus, then the virus is adsorbed and internalized by a cell membrane, and the virus enters cytoplasm and then is unshelled to release a genome. After the genome is released into the cytoplasm, the viral RNA binds to the ribosomes of the host cell, translating into two sets of proteins, which are subsequently cleaved by proteolytic enzymes to produce enzymes and proteins for continued viral assembly and replication. The newly produced enzyme includes RNA-dependent RNA polymerase (RdRp), which functions to replicate and form new viral RNA. The new viral RNA will bind to the protein produced by the hydrolase, assemble into a new virus, release the original host cell, and continue to infect other cells.

Carrageenan, also called Carrageenan, carrageenin, Irish moss. The carrageenan is sulfated galactan, and the skeleton structure is formed by alternately connecting 1, 3-beta-D-galactose and 1, 4-alpha-D-galactose. Carrageenans can be classified into seven types according to the position at which the half-ester sulfate group is attached to galactose (i.e., the composition and structure are different): kappa-carrageenan, tau-carrageenan, lambda-carrageenan, mu-carrageenan, v-carrageenan, theta-carrageenan and xi-carrageenan. Of which the first three are the main products and uses in industry.

Because of its functional properties, carrageenan is used as a thickener, a gelling agent, a suspending agent, an emulsifier, a stabilizer, and the like in the industrial fields of foods, daily chemicals, and the like. In addition, the carrageenan is found to have various physiological activities including anticoagulant, hypolipidemic, immune regulation, gastric ulcer resistance, rheumatoid arthritis resistance and the like.

Disclosure of Invention

[ problem ] to

The technical problem to be solved by the present invention is the lack of effective substances for inhibiting novel coronaviruses.

[ solution ]

The invention provides an application of carrageenan in resisting coronavirus, wherein the coronavirus comprises novel coronavirus SARS-CoV-2. The anti-coronavirus is used for preventing or treating pneumonia caused by coronavirus, including preventing SARS-CoV-2 virus from invading cells of organism. The carrageenan can be used for preparing medicines, foods and daily chemical products for preventing or treating coronavirus infection.

The carrageenan is tau-carrageenan.

The invention provides an application of carrageenan in preparing a medicament for preventing or treating coronavirus infection, wherein the medicament takes the carrageenan as an active ingredient for inhibiting coronavirus from entering cells of a body.

The medicine also comprises pharmaceutically acceptable auxiliary materials, including: solvents, propellants, solubilizers, emulsifiers, colorants, binders, disintegrants, fillers, lubricants, wetting agents, osmotic pressure regulators, stabilizers, glidants, flavoring agents, preservatives, suspending agents, coating materials, fragrances, anti-adhesives, integration agents, permeation promoters, pH regulators, buffers, plasticizers, surfactants, foaming agents, antifoaming agents, thickeners, coating agents, humectants, absorbents, diluents, flocculants and deflocculants, filter aids, release retardants, and the like.

The dosage form of the medicament may be: spray, aerosol, powder spray, lotion, ointment, liniment, nasal spray, effervescent tablet, gargle, powder, emulsion, suspension, solution.

The invention provides an application of carrageenan in preparing a protective product for preventing coronavirus infection, wherein the protective product comprises the following components in parts by weight: hand sanitizer, mouthwash, hand lotion, mask filter element, air filter element.

The carrageenan is tau-carrageenan.

The invention provides a method for preparing a coronavirus infection protection product by using carrageenan, which is to add the carrageenan in the process of preparing the protection product.

The invention provides a preparation method of an inhalant for preventing coronavirus infection, which is characterized by stirring and dissolving 30-50 g of sodium chloride, 70-120 g of citric acid, 70-120 g of sodium citrate and 0.5-2 g of benzalkonium chloride by using 8-50 times of purified water in an aseptic environment respectively; stirring and dissolving 5-20 g of carrageenan by using 500mL of purified water; mixing the above solutions, diluting with purified water to 5-20L, filtering with 0.5 μm filter membrane, and packaging.

The invention provides a preparation method of a mask filter core for preventing coronavirus infection, which comprises the steps of adding 1-3g of PVA, 8-12g of PET, 40-60mg of xylometazoline hydrochloride and 0.5-1.0mg of NaCl into 100mL of carrageenan aqueous solution with the concentration of 0.005-0.2g/mL, and stirring in a water bath at 80-95 ℃ for 20-40 min; spinning the obtained viscous solution on non-woven fabric by adopting an electrostatic spinning method to prepare a carrageenan film which is used as a carrageenan mask filter element; the working voltage of the electrostatic spinning method is 10-20kV, the working time of the electrostatic spinning is 1.5-4h, and the spraying distance is 10-30 cm.

The invention provides a preparation method of a no-clean hand sanitizer for preventing coronavirus infection, wherein the formula of the no-clean hand sanitizer comprises the following components in percentage by volume: 45-60% of 75% ethanol, 1-3% of glycerol, 4-8% of hydroxyethyl cellulose, 0.05-0.1% of sodium citrate, 1-2% of lauric acid diethanolamide, 5-10% of vitamin E, 2-4% of citrus oil and the balance of 0.005-0.2g/mL of carrageenan aqueous solution. Dissolving hydroxyethyl cellulose and sodium citrate in a carrageenan aqueous solution to obtain a water-soluble part; dissolving glycerol, lauric acid diethanolamide, vitamin E and citrus oil in 75% ethanol to obtain an oil-soluble part; mixing the water soluble part and the oil soluble part, stirring, filtering with 1 μm filter membrane, and canning.

[ advantageous effects ]

The invention provides a new application of carrageenan, wherein the carrageenan can inhibit SARS-CoV-2 virus from infecting organism cells obviously at the concentration of 62.5 mug/mL or more. The carrageenan is a common food additive, is beneficial and harmless to human bodies both in external use and oral administration, and is low in price. Therefore, the carrageenan can be prepared into inhalant (nasal spray) to enter nasal cavities, trachea and lungs to prevent virus from infecting organism tissues, and is used for preventing and treating novel coronavirus; the carrageenan is added into the washing-free hand sanitizer formula, so that the effect of the hand sanitizer on resisting novel coronavirus can be improved, and the novel coronavirus infection can be prevented; the mask filter core made of carrageenan can increase the effect of protecting the mask from the novel coronavirus infection.

Drawings

FIG. 1 is a cellular immunofluorescence diagram of SARS-CoV-2 virus mixed with carrageenan of different concentrations. The concentration of carrageenan is 500, 250, 125, 62.5, 31.3, 15.6 and 7.8 mug/mL. The negative control was a blank medium without tau-carrageenan.

Detailed Description

SARS-CoV-2 true virus source: second department of military medical university