CN116077485A - Application of flavonoid oroxylin in preparation of medicines for treating uterine cavity adhesion - Google Patents

Application of flavonoid oroxylin in preparation of medicines for treating uterine cavity adhesion Download PDF

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CN116077485A
CN116077485A CN202211345919.5A CN202211345919A CN116077485A CN 116077485 A CN116077485 A CN 116077485A CN 202211345919 A CN202211345919 A CN 202211345919A CN 116077485 A CN116077485 A CN 116077485A
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oroxylin
uterine cavity
adhesion
cavity adhesion
medicines
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侯亚义
窦环
杨静静
李京蔓
王佳丽
郭青龙
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Nanjing Qinkang Pharmaceutical Technology Co ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/335Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/35Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom
    • A61K31/352Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom condensed with carbocyclic rings, e.g. methantheline 
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0012Galenical forms characterised by the site of application
    • A61K9/0019Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P15/00Drugs for genital or sexual disorders; Contraceptives
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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Abstract

The invention discloses application of flavonoid oroxylin in preparation of a medicine for treating uterine cavity adhesion, and belongs to the technical field of biological medicines. The invention discovers that the flavonoid compound oroxylin can relieve the inflammation and the fibrosis degree of the uterus of a mouse with intrauterine adhesion, and shows that the oroxylin can relieve the disease process of intrauterine adhesion and has the application prospect of developing medicines for treating intrauterine adhesion.

Description

Application of flavonoid oroxylin in preparation of medicines for treating uterine cavity adhesion
Technical Field
The invention belongs to the technical field of biological medicines, and particularly relates to application of flavonoid compound oroxylin in preparation of medicines for treating uterine cavity adhesion.
Background
Uterine cavity adhesions (Intrauterine adhesion, IUA), also known as Asherman syndrome, are partial or complete occlusions of the uterine cavity due to damaged endometrium, which are in essence endometrial fibrosis. After the endometrium is damaged, pathogens penetrating into the wound site release injury or pathogen-related molecular patterns, injured cells release chemokines, and inflammation is initiated, and if the inflammation is continuously present, endometrial fibrosis is caused.
The functional defect of the endometrium part caused by the intrauterine adhesion can lead to repeated pregnancy loss, hypomenorrhea, pelvic pain, amenorrhea and infertility, and seriously affect the reproductive health of human beings. With the increase of clinical uterine cavity operation in recent years, the incidence of uterine cavity adhesion is also increasing, and the uterine cavity adhesion becomes the second most causative factor of female secondary infertility. The current common treatment methods include hysteroscopic adhesion decomposition surgery, placement of intrauterine devices and hormone therapy, but the recurrence rate after healing is high, and the endomembrane fibrosis cannot be relieved.
Therefore, there is an urgent need to find new drugs for treating uterine cavity adhesion and realizing endometrial reconstruction, and provide new ideas and methods for clinically treating uterine cavity adhesion.
Disclosure of Invention
The invention aims to provide application of flavonoid oroxylin in preparing medicines for treating uterine cavity adhesion.
The flavonoid compound oroxylin has a chemical name of 5, 7-dihydroxyl-6-methoxy-2-phenyl-4H-1-benzofuran-4-one, and a structural formula shown as the following formula:
Figure DEST_PATH_IMAGE001
in one embodiment of the invention, the effect of low dose (20 mg/kg) and high dose (40 mg/kg) of oroxylin on endometrial morphology and its inflammatory levels in mice with intrauterine adhesion was determined by HE staining, ELISA and qRT-PCR experiments.
In another embodiment of the invention, the effect of low dose (20 mg/kg) and high dose (40 mg/kg) of oroxylin on the extent of endometrial fibrosis in mice with intrauterine adhesion was determined by Masson staining and an alpha-SMA immunohistochemical assay.
The invention discovers that the flavonoid compound oroxylin can improve the shape of endometrium of a mouse with intrauterine adhesion and relieve the inflammation and the fibrosis degree, which indicates that the oroxylin can relieve the process of intrauterine adhesion diseases and has application prospect for developing medicines for treating intrauterine adhesion.
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FIG. 1 shows the results of HE staining of uterine tissue (A), the results of expression of inflammatory factor gene (B) and the results of expression of inflammatory factor in serum (C) under the action of oroxylin at various concentrations in example 1.
FIG. 2 shows results of uterine Masson staining (A) and results of alpha-SMA immunohistochemistry (B) with different concentrations of oroxylin in example 2.
Detailed Description
The invention will now be described in further detail with reference to the drawings and specific examples, which should not be construed as limiting the invention. Modifications and substitutions to methods, procedures, or conditions of the present invention without departing from the spirit and nature of the invention are intended to be within the scope of the present invention. The experimental procedures and reagents not shown in the formulation of the examples were all in accordance with the conventional conditions in the art.
The experimental materials used in the following examples are as follows:
1.1 medicaments
Oroxylin (OA) with chemical name of 5, 7-dihydroxy-6-methoxy-2-phenyl-4H-1-benzofuran-4-one and chemical formula of C 16 H 12 O 5 The molecular weight is 284.263, and the product is light yellow powder with purity provided by Chinese medical university>99%. Oroxylin was suspended using sodium carboxymethylcellulose (CMC-Na) to aid dissolution and formulated into a concentration of mother liquor for in vivo experiments.
1.2 A mouse
Female BALB/c mice (6-8 weeks old) were purchased from Jiangsu Hua Xinnuo pharmaceutical technologies Co. All mice are bred in SPF-class animal houses, the temperature of the houses is 20-22 ℃, the humidity is 40-60%, and 12-hour illumination/darkness alternation is adopted to ensure the diet drinking of animals.
Press hairEarly Ming' S study (Jiang Q, li J, pan Y, wang J, yang J, shen S), et alStem Cells 2022.), an electric scraping method was used to model the intrauterine adhesion (IUA), i.e. scraping for 3 x 8s. 32 mice were randomly divided into 4 groups (n=8): control, IUA, oroxylin low dose and oroxylin high dose. Wherein the control group was only intraperitoneally injected with the same dose of solvent; after the IUA group is molded by using an electric scratching mode, injecting the solvent with the same dosage into the abdominal cavity; the oroxylin low dose group was intraperitoneally injected with 20mg/kg oroxylin daily for 2 hours after molding using an electric scratching mode; the high dose group of oroxylin was sacrificed 2h after modelling with electric scratch mode, daily intraperitoneal injection of 40mg/kg oroxylin, after 12h and 7 days respectively, serum and uterine samples were collected and tested for their inflammation and fibrosis levels.
Example 1
Oroxylin can improve the endometrial morphology of mice with intrauterine adhesion and reduce the inflammation level
Hematoxylin (hemaloxylin) -Eosin (Eosin) staining, HE staining for short, was used to observe morphological changes in endometrium. The principle is that two dyes, namely basic dye hematoxylin and acid dye eosin, are respectively used for acting on cell nucleus and cytoplasm to change the refractive index of a cell microstructure through color, so that a cell image can be clearly displayed under a light microscope.
As shown in fig. 1A, HE staining of uterine tissue found that IUA mice had incomplete endometrial structure, reduced gland numbers, and increased inflammatory cell infiltration, but after treatment with oroxylin, endometrial structure was restored to completion, gland numbers increased, and inflammatory cell infiltration decreased, as compared to the control group. Real-time fluorescent quantitative PCR analysis of uterus revealed that expression of inflammatory factors such as IL-1β, IL-18, IL-6 was significantly reduced after treatment with oroxylin (FIG. 1B). The expression of inflammatory factors such as IL-1 beta, IL-18, IL-6 in serum was also significantly reduced after oroxylin treatment, and the therapeutic effect was superior in the high dose group to the low dose group (FIG. 1C). Showing that oroxylin can improve the endometrial morphology of mice with intrauterine adhesion and reduce the inflammation level.
Example 2
Oroxylin can relieve uterine fibrosis degree of mice with uterine cavity adhesion
Masson staining is used to reflect the degree of fibrosis in the uterus by mixing two or three anionic dyes to make the collagen fibers blue and the muscle fibers red, thus observing the collagen structure of the tissue. alpha-SMA is a marker of smooth muscle cells, and is currently also known as a marker of myofibroblasts, and immunohistochemical staining of uterine tissue with alpha-SMA also reflects the degree of fibrosis in the uterus.
As shown in FIG. 2, masson staining of uterine tissue and immunohistochemical staining of α -SMA revealed that the endometrial stroma of IUA group mice was replaced by collagen (FIG. 2A), α -SMA compared to the control group + The number of myofibroblasts was significantly increased (fig. 2B), but after treatment with oroxylin, the number of collagen fibers in endometrium and α -SMA + The number of myofibroblasts was significantly reduced, and the therapeutic effect of the high dose group was superior to that of the low dose group. Showing that the oroxylin can relieve the uterine fibrosis degree of mice with uterine cavity adhesion.

Claims (6)

1. Application of oroxylin in preparing medicine for treating uterine cavity adhesion is provided.
2. The use according to claim 1, characterized in that: the oroxylin can improve the form of uterine cavity adhesion endometrium, lighten the expression of inflammatory factors IL-1 beta, IL-18 and IL-6 in uterine tissues, and reduce the expression of inflammatory factors IL-1 beta, IL-18 and IL-6 in serum.
3. The use according to claim 1, characterized in that: the oroxylin can reduce the degree of fibrosis of uterine cavity adhesion uterus.
4. A medicine for treating uterine cavity adhesion, which is characterized in that: the active ingredient is oroxylin.
5. The uterine cavity adhesion treatment drug according to claim 4, wherein: also included are pharmaceutically acceptable carriers.
6. The uterine cavity adhesion treatment drug according to claim 4, wherein: the medicine is injection.
CN202211345919.5A 2022-10-31 2022-10-31 Application of flavonoid oroxylin in preparation of medicines for treating uterine cavity adhesion Pending CN116077485A (en)

Priority Applications (1)

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