CN117085020A - Application of theobromine in preparing medicament for treating and/or preventing lipid metabolism abnormality related diseases - Google Patents

Application of theobromine in preparing medicament for treating and/or preventing lipid metabolism abnormality related diseases Download PDF

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Publication number
CN117085020A
CN117085020A CN202311310252.XA CN202311310252A CN117085020A CN 117085020 A CN117085020 A CN 117085020A CN 202311310252 A CN202311310252 A CN 202311310252A CN 117085020 A CN117085020 A CN 117085020A
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China
Prior art keywords
theobromine
use according
lipid metabolism
treating
liver
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CN202311310252.XA
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Chinese (zh)
Inventor
徐晓军
张伟涛
冯连顺
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China Pharmaceutical University
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China Pharmaceutical University
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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
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/505Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
    • A61K31/519Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
    • A61K31/52Purines, e.g. adenine
    • A61K31/522Purines, e.g. adenine having oxo groups directly attached to the heterocyclic ring, e.g. hypoxanthine, guanine, acyclovir
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P1/00Drugs for disorders of the alimentary tract or the digestive system
    • A61P1/16Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics

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  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The invention discloses application of theobromine in preparing medicaments for treating and/or preventing diseases related to lipid metabolism abnormality, wherein the theobromine inhibits liver lipid accumulation through FXR-SHP-SREBP1c axis, and has the effects of improving nonalcoholic steatohepatitis, reducing blood fat, improving liver fibrosis and improving insulin resistance. The invention discovers the effect of theobromine on improving the nonalcoholic steatohepatitis caused by lipid metabolism abnormality for the first time, and provides more choices for treating diseases related to lipid metabolism abnormality.

Description

Application of theobromine in preparing medicament for treating and/or preventing lipid metabolism abnormality related diseases
Technical Field
The invention relates to application of theobromine, in particular to application of the theobromine in preparing a medicament for treating and/or preventing diseases related to lipid metabolism abnormality.
Background
Nonalcoholic fatty liver disease (Non-alcoholic fatty liver disease, NAFLD) is a disease characterized by accumulation of intrahepatic lipids, and includes a range of histologically altered diseases, mainly simple fatty liver, nonalcoholic steatohepatitis (nonalcoholic steatohepatitis, NASH), liver fibrosis, cirrhosis and liver cancer. NASH is an advanced stage of NAFLD, simple fatty liver can be reversed to normal liver, and after progression to NASH, steatosis will be accompanied by inflammation, hepatocyte apoptosis and various degrees of liver fibrosis. Liver fibrosis is highly associated with the occurrence of end-stage liver disease, and serious NASH can cause cirrhosis or liver cancer, endangering human lives. At present, there is no clinically effective means for treating NASH and liver fibrosis, in addition to controlling body weight and limiting diet.
Theobromine (Theobromine), also known as 3, 7-dimethylxanthine, has a formula of C 7 H 8 N 4 O 2 The molecular weight is 180.164, and the chemical structural formula is as follows:
the application of theobromine in preparing medicaments for treating and/or preventing diseases related to lipid metabolism abnormality is not reported in the prior art, and the research on the novel application of the theobromine in the field of medicaments is needed to overcome larger technical difficulty and has important significance.
Disclosure of Invention
The invention aims to: the invention aims to provide an application of theobromine with the functions of improving nonalcoholic steatohepatitis, reducing blood fat, improving liver fibrosis and improving insulin resistance in preparing a medicine for treating and/or preventing diseases related to lipid metabolism abnormality.
The technical scheme is as follows: the theobromine can be applied to the preparation of medicines for treating and/or preventing diseases related to lipid metabolism abnormality. Theobromine can inhibit liver lipid accumulation through FXR-SHP-SREBP1c axis, thereby effectively reducing body weight of mice with nonalcoholic steatohepatitis induced by high-fat, high-fructose and high-cholesterol diet, and improving cholesterol and triglyceride levels in serum, liver fibrosis and insulin resistance thereof.
Further, the disease associated with abnormal lipid metabolism is nonalcoholic steatohepatitis.
The invention also provides application of the pharmaceutical composition containing theobromine in preparing medicines for treating and/or preventing diseases related to lipid metabolism abnormality.
Further, the composition is a pharmaceutical preparation prepared by taking theobromine as an active ingredient and adding pharmaceutically acceptable carriers or auxiliary materials. The pharmaceutical preparation is tablet, capsule, syrup, suspension or injection. The adjuvants are perfume, sweetener, liquid/solid filler or diluent.
The beneficial effects are that: compared with the prior art, the invention has the following remarkable advantages:
(1) Theobromine can inhibit liver lipid accumulation through FXR-SHP-SREBP1c axis, thereby effectively improving liver steatosis, liver injury, hepatitis and fibrosis of a non-alcoholic steatohepatitis model mouse, reducing the contents of cholesterol, triglyceride, glutamic-oxaloacetic transaminase and glutamic-pyruvic transaminase in serum of the non-alcoholic steatohepatitis model mouse, and improving glucose tolerance and insulin resistance of the non-alcoholic steatohepatitis model mouse;
(2) The theobromine medicine composition has wide application and is expected to be developed into a biological medicine preparation for treating the nonalcoholic steatohepatitis aiming at the activity of the theobromine medicine composition in animals.
Drawings
FIG. 1 is the experimental results of mouse body weight;
FIG. 2 is the experimental results of liver weights of mice;
FIG. 3 is an experimental result of the weight of epididymal white fat of mice;
FIG. 4 is an Oral Glucose Tolerance Test (OGTT) result;
FIG. 5 is the area under the oral glucose tolerance test curve
FIG. 6 is an insulin resistance test (ITT) result;
FIG. 7 is an area under insulin resistance test curve
FIG. 8 is an experimental result of Total Cholesterol (TC) in serum;
FIG. 9 is an experimental result of Triglyceride (TG) in serum;
FIG. 10 is the experimental results of low density cholesterol (LDL-C) in serum;
FIG. 11 shows the results of experiments on glutamic-oxaloacetic transaminase (AST) in serum;
FIG. 12 is the experimental results of glutamic pyruvic transaminase (ALT) in serum;
FIG. 13 is a pathological section of the liver of a mouse, epididymal fat and brown fat;
FIG. 14 is a pathological section of the heart, muscle, spleen, lung and kidney of the mice;
FIG. 15 is the experimental results of the mRNA level of FXR in the liver of mice;
FIG. 16 is an experimental result of the mRNA level of SHP in the liver of mice;
FIG. 17 shows the results of experiments on mRNA levels of SHP and SREBP1c before and after FXR knockdown in liver primary cells.
Detailed Description
The technical scheme of the invention is further described below by referring to examples.
Examples: theobromine effect on nonalcoholic steatohepatitis.
1. Experimental method
a) Animal experiment
Normal group (Control): c57BL/6J male mice with the size of 8 weeks are fed with common feed. After 12 weeks, 0.1% cmc-Na was administered daily by gavage at the same time for 8 weeks. Body weight was recorded weekly.
Model set (HFFC): male mice of C57BL/6J 8 weeks old were fed HFFC diet (HFFC, fat content 40%, fructose content 20%, cholesterol content 2%). After 12 weeks, 0.1% cmc-Na was administered daily by gavage at the same time for 8 weeks. Body weight was recorded weekly.
Drug administration group: c57BL/6J male mice 8 weeks old were fed HFFC diet. The low dose (50 mg/kg), medium dose (100 mg/kg) and high dose (200 mg/kg) groups of theobromine were administered daily at the same time by gavage for 8 weeks after 12 weeks. Body weight was recorded weekly.
b) Cell experiment
Taking 12-week-old male mice, extracting liver primary cells, and 1×10 per well with six-well plate 6 Individual cells were plated. After extraction of cellular mRNA after administration of theobromine or transfected FXR-siRNA in a time-gradient, gene expression levels of FXR, SHP and SREBP1c were determined by q-PCR.
2. Experimental results
The weight of the theobromine high dose group was reduced by 6.5g compared to HFFC fed mice (fig. 1). In addition, the liver weight of the theobromine high dose administration group was reduced by 0.73g compared to the HFFC model group (FIG. 2). Consistent with the above results, the weight of epididymal fat was reduced by 1.55g in mice in the high dose theobromine dosing group compared to the HFFC model group (FIG. 3). Glucose tolerance and insulin resistance were significantly improved in HFFC-fed mice treated with the compound theobromine (fig. 4-7). Furthermore, serum TC was reduced by 1.07mM in the mice of the theobromine high dose administration group compared to the HFFC model group (fig. 8). Serum TG levels were reduced by 1.82mM in mice from the theobromine high dose dosing group compared to mice from the HFFC model group (fig. 9). Serum LDL-C was reduced by 3.28mM in theobromine-dosed mice compared to HFFC model group (fig. 10). Subsequently, further examination of the common indices of clinical liver injury, ALT and AST, revealed a significant decrease in ALT and AST content in the theobromine-administered group (FIGS. 11-12). HE. Pathological section staining with oil red O, sirius scarlet showed lower lipid accumulation, reduced liver injury, and reduced liver fibrosis in mice treated with compound theobromine compared to HFFC model group mice (fig. 13). Histological analysis showed that the compound theobromine reduced the cell size of mouse epididymal white adipose tissue (eWAT) and Brown Adipose Tissue (BAT) (FIG. 13). Whereas HE sections of heart, muscle, spleen, lung and kidney showed that the compound theobromine had no significant toxic side effects (fig. 14). In terms of mechanism, the present invention explored the expression of lipid metabolism-related genes after theobromine administration, and found that the expression level of FXR was significantly increased after theobromine administration and had a dose-dependency (fig. 15). The FXR-SHP-SREBP1c axis reduced liver lipid accumulation, and the present invention further examined the expression of SHP, a direct target gene for FXR, and found that SHP expression was also elevated after theobromine administration (FIG. 16). Further, FXR knockdown in NASH mice liver primary cells, it was found that the effect of SHP expression increase after theobromine administration was reversed, while the expression level of SHP-inhibited SREBP1c was increased (fig. 17), indicating that lipid synthesis was increased after FXR knockdown.
In conclusion, theobromine improves HFFC diet-induced nonalcoholic steatohepatitis in C57BL/6J mice through FXR-SHP-SREBP1C axis, and has excellent safety.

Claims (10)

1. Use of theobromine in preparing medicament for treating and/or preventing lipid metabolism abnormality related diseases.
2. The use according to claim 1, characterized in that: the lipid metabolism abnormality related disease is non-alcoholic steatohepatitis.
3. The use according to claim 2, characterized in that: theobromine inhibits liver lipid accumulation through FXR-SHP-SREBP1c axis, thereby effectively improving nonalcoholic steatohepatitis.
4. The use according to claim 2, characterized in that: theobromine can effectively improve liver steatosis, liver injury, hepatitis and fibrosis.
5. The use according to claim 2, characterized in that: theobromine can reduce the content of cholesterol, triglyceride, glutamic-oxaloacetic transaminase and glutamic-pyruvic transaminase in serum.
6. The use according to claim 2, characterized in that: theobromine can improve glucose tolerance and insulin resistance.
7. Use of a pharmaceutical composition containing theobromine for preparing a medicament for treating and/or preventing diseases associated with abnormal lipid metabolism.
8. The use according to claim 7, characterized in that: the pharmaceutical composition is a pharmaceutical preparation prepared by taking theobromine as an active ingredient and adding a pharmaceutically acceptable carrier or auxiliary material.
9. The use according to claim 8, characterized in that: the pharmaceutical preparation is a tablet, a capsule, syrup, a suspending agent or an injection.
10. The use according to claim 8, characterized in that: the auxiliary materials are spice, sweetener, liquid/solid filler or diluent.
CN202311310252.XA 2023-10-10 2023-10-10 Application of theobromine in preparing medicament for treating and/or preventing lipid metabolism abnormality related diseases Pending CN117085020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311310252.XA CN117085020A (en) 2023-10-10 2023-10-10 Application of theobromine in preparing medicament for treating and/or preventing lipid metabolism abnormality related diseases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311310252.XA CN117085020A (en) 2023-10-10 2023-10-10 Application of theobromine in preparing medicament for treating and/or preventing lipid metabolism abnormality related diseases

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