Your browser doesn't support javascript.
loading
Montrer: 20 | 50 | 100
Résultats 1 - 20 de 1.130
Filtre
1.
China Pharmacy ; (12): 1016-1022, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1016729

Résumé

Esophageal cancer (EC) is a common malignant tumor of the digestive system with an extremely poor prognosis. MicroRNA (miRNA) is an important regulator in tumor occurrence and development, and can participate in malignant biological behaviors such as tumor cell proliferation, invasion, metastasis and apoptosis. Traditional Chinese medicine has the characteristics of accurate curative effects, wide range of effects, and few side effects. The review uses miRNA as the entry point to systematically elaborate on the mechanism of traditional Chinese medicine-mediated miRNA intervening in EC. The results showed that active ingredients of traditional Chinese medicine (including curcumin, Tussilago farfara polysaccharides, Atractylodes macrocephala polysaccharides and ophiopogonin B) and Dougen guanshitong oral liquid could up-regulate the expressions of miRNAs such as miRNA-532-3p (miR-532-3p), miR-551b-3p, miR-99a, miR-34a, miR-199a-3p and miR-377; and the active ingredients/parts of traditional Chinese medicine (including chrysin and Actinidia arguta extract), and Chinese herbal formulas (including Chaihu shugan san combined with Xuanfu daizhe decoction and Modified jupi zhuru decoction) could down-regulate the expressions of miRNAs such as miR-199a-3p, miR-451 and miR-21, which could regulate the expressions of signaling pathways (phosphoinositide 3-kinase/protein kinase B, etc.) or their downstream protein(zinc-finger and homeobox protein 1, etc.) or enzymes(thymidine kinase-1, etc.), inhibit the proliferation, invasion and metastasis of EC cells and induce apoptosis, thereby ultimately achieving the purpose of preventing the disease from aggravating.

2.
Acta Pharmaceutica Sinica ; (12): 374-381, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1016650

Résumé

This study aims to investigate the effect of salvianolic acid B (Sal B), the active ingredient of Salvia miltiorrhiza, on H9C2 cardiomyocytes injured by oxygen and glucose deprivation/reperfusion (OGD/R) through regulating mitochondrial fission and fusion. The process of myocardial ischemia-reperfusion injury was simulated by establishing OGD/R model. The cell proliferation and cytotoxicity detection kit (cell counting kit-8, CCK-8) was used to detect cell viability; the kit method was used to detect intracellular reactive oxygen species (ROS), total glutathione (t-GSH), nitric oxide (NO) content, protein expression levels of mitochondrial fission and fusion, apoptosis-related detection by Western blot. Mitochondrial permeability transition pore (MPTP) detection kit and Hoechst 33342 fluorescence was used to observe the opening level of MPTP, and molecular docking technology was used to determine the molecular target of Sal B. The results showed that relative to control group, OGD/R injury reduced cell viability, increased the content of ROS, decreased the content of t-GSH and NO. Furthermore, OGD/R injury increased the protein expression levels of dynamin-related protein 1 (Drp1), mitofusions 2 (Mfn2), Bcl-2 associated X protein (Bax) and cysteinyl aspartate specific proteinase 3 (caspase 3), and decreased the protein expression levels of Mfn1, increased MPTP opening level. Compared with the OGD/R group, it was observed that Sal B had a protective effect at concentrations ranging from 6.25 to 100 μmol·L-1. Sal B decreased the content of ROS, increased the content of t-GSH and NO, and Western blot showed that Sal B decreased the protein expression levels of Drp1, Mfn2, Bax and caspase 3, increased the protein expression level of Mfn1, and decreased the opening level of MPTP. In summary, Sal B may inhibit the opening of MPTP, reduce cell apoptosis and reduce OGD/R damage in H9C2 cells by regulating the balance of oxidation and anti-oxidation, mitochondrial fission and fusion, thereby providing a scientific basis for the use of Sal B in the treatment of myocardial ischemia reperfusion injury.

3.
Acta Pharmaceutica Sinica ; (12): 336-349, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1016648

Résumé

Small-molecule phenolic substances widely exist in animals and plants, and have some shared biological activities. The metabolism of phenylalanine and tyrosine in the human body, and especially the metabolism of catecholamine neurotransmitters, produces endogenous small-molecule phenols. Endogenous small-molecule phenolic substances are functionally related to the important physiological processes and the occurrence of mental diseases in humans and some animals, which are systematically sorts and summarized in this review. Integrating the previous experimental research and literature analysis on natural small-molecule phenols by our research group, the understanding of the hypothesis that "small-molecule phenol are pharmacological signal carriers" was deepened. Based on above, the concept of "phenolomics" was further proposed, analyzed the research direction and research content which can bring into the knowledge framework of phenolomics. The induction of phenolomics will provide wider perspectives on explaining the pharmacological mechanism of drugs, discovering new drug targets, and finding biomarkers of mental diseases.

4.
China Pharmacy ; (12): 707-711, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1013106

Résumé

OBJECTIVE To investigate the ameliorative effects and mechanism of Sanwei ganlu on hepatic fibrosis in rats. METHODS The rats were randomly divided into normal group, model group, silibinin group (positive control, 50 mg/kg), and Sanwei ganlu low-dose, medium-dose, and high-dose groups (80, 250, 800 mg/kg). Except for normal group, hepatic fibrosis rat models were established by intraperitoneal injection of CCl4 in the other groups of rats. Starting from the 6th week of modeling administration, they were given normal saline or corresponding drugs intragastrically at the same time. At the end of the ninth-week experiment, liver and spleen indexes of rats were calculated; the pathological structure and fibrosis changes of liver tissue were observed by HE, Masson and Sirus Red staining. The contents of alanine transaminase (ALT), aspartate transaminase (AST), procollagen type Ⅲ (PC Ⅲ), collagen type Ⅳ (COL-Ⅳ), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and IL-1β in serum, and hyaluronic acid (HA) and laminin (LN) in liver tissue were all detected. RESULTS Compared with the model group, the liver injury and collagen fiber deposition of rats were improved to different extents in Sanwei ganlu groups and silibinin group; the contents of ALT, AST, PC Ⅲ, COL-Ⅳ, IL-6, TNF-α and IL-1β in serum as well as the contents of HA and LN in liver tissue significantly decreased (P<0.05 or P<0.01). CONCLUSIONS Sanwei ganlu can alleviate the progression of hepatic fibrosis in rats, possibly by inhibiting the synthesis of collagen fiber, reducing transaminase content, down-regulating the levels of HA, LN, PC Ⅲ and COL-Ⅳ, and reducing the inflammatory response.

5.
JOURNAL OF RARE DISEASES ; (4): 108-113, 2024.
Article Dans Anglais | WPRIM | ID: wpr-1006905

Résumé

We studied the patients diagnosed with X-linked hypophosphatemicrickets(XLH) and treated with burosumab in Peking Union Medical College Hospital from January 2021 to December 2022. In addition, we described the clinical characteristics of the patients, the changes of clinical indexes before and after burosumab treatment, and the adverse drug reactions during treatment. We also evaluated the efficacy and safety of burosumab for XLH. The results showed that three children XLH patients and one adult XLH patients received burosumab treatment. After treatment, the serum phosphorus level of all patients increased; the serum phosphorus of 3 children patients increased above the lower limit of the reference value range; the serum alkaline phosphatase(ALP) of all patients was lower than that of before treatment; the serum ALP of one adult patient was close to the normal range after 2.5 years of treatment. One child patient showed small crystals in kidney through ultrasound 48 weeks after treatment; one child and one adult showed increased serum parathyroid hormone(PTH)level before treatment and serum PTH continued increasing after treatment. Finally, it may be concluded that burosumab increased serum phosphorus levels in XLH patients, kept the level relatively stable, and reduced serum ALP levels. No serious adverse reactions occurred during treatment, in order to provide reference for the use of burosumab in patients with XLH.

6.
China Pharmacy ; (12): 192-197, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1006177

Résumé

OBJECTIVE To investigate the effects of anlotinib on the malignant phenotype of glioma cells by regulating the nuclear factor-κB (NF-κB) signaling pathway. METHODS Human glioma T98G cells were cultured in vitro, and 5-fluorouracil was used as positive control to investigate the effects of different concentrations of anlotinib (5, 10, 20 μmol/L) on the ability of proliferation, adhesion, migration and invasion, the expressions of epithelial-mesenchymal transition (EMT) related proteins [E-cadherin, N-cadherin, vimentin and fibronectin (FN)]. NF- κB signaling pathway inhibitor (BAY 11-7082) and activator (prostratin) were additionally used to verify the possible mechanism of the above effects of anlotinib. RESULTS Anlotinib with 5, 10, 20 μmol/L could significantly decrease the activity of cell proliferation (except for 5 μmol/L anlotinib group), migration rate, and the number of adherent cells and invasive cells, could significantly up-regulate the expression of E-cadherin protein while down-regulate the expressions of N-cadherin, vimentin and FN protein (P<0.05); the effect of 20 μmol/L anlotinib was similar to that of positive control (P>0.05). Compared with 10 μmol/L anlotinib, pathway inhibitor could significantly decrease the ability of proliferation, adhesion, migration and invasion, and the expressions of N-cadherin, vimentin, FN and phosphorylated NF-κB p65 protein, while could significantly up-regulate the expression of E-cadherin protein (P<0.05); above indexes were reversed significantly by pathway activator (P<0.05). CONCLUSIONS Anlotinib may inhibit the proliferation, adhesion, migration and invasion of human glioma T98G cells, which may be associated with the inhibition of the NF-κB signaling pathway, thus inhibiting cell EMT-like processes.

7.
International Eye Science ; (12): 225-229, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1005385

Résumé

Transient receptor potential vanilloid receptor 4(TRPV4)is a non-selective cation channel responsible for sensing changes in cell swelling, temperature, mechanical stretch, shear stress and osmotic pressure by regulating transmembrane calcium signaling and thereby influencing gene expression, cell morphology, and cytoskeletal construction. TRPV4 is widely expressed throughout the body. Intraocularly, TRPV4 is functionally expressed in the cornea, lens, ciliary body, trabecular meshwork and retina. In this article, the expression and physiopathological functions of TRPV4 in various tissues of the eye were described. With the in-depth study of TRPV4 in ocular pathophysiological functions, TRPV4 may become a potential drug target in corneal injury repair, glaucoma and retinal angiogenesis, but further in-depth study is still needed.

8.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 221-233, 2024.
Article Dans Chinois | WPRIM | ID: wpr-1003427

Résumé

Reflux esophagitis is an inflammatory disease of esophageal mucosa damage caused by the reflux of gastric contents into the esophagus. Its incidence is on the rise, and it has become an important precancerous disease of esophageal cancer. Studies have shown that the continuous inflammatory response stimulates the esophageal mucosa, causing abnormal proliferation of esophageal epithelial cells and damage to esophageal mucosal tissue, which eventually leads to the occurrence of heterogeneous hyperplasia and even carcinogenesis. The nuclear transcription factor-kappa B (NF-κB) signaling pathway is one of the most classical inflammatory and cancer signaling pathways. It has been found that abnormal activation of the NF-κB signaling pathway is crucial to the development and prognosis of reflux esophagitis and esophageal cancer. It is widely involved in the proliferation, autophagy, apoptosis, and inflammatory response of esophageal epithelial cells and tumor cells, accelerating the transformation of reflux esophagitis to esophageal cancer and making it a potential target for the treatment of reflux esophagitis and esophageal cancer. Currently, there is no specific treatment for reflux esophagitis and esophageal cancer, and large side effects often appear. Therefore, finding a promising and safe drug remains a top priority. In recent years, traditional Chinese medicine scholars have conducted a lot of research on NF-κB signaling pathway, and the results indicate that NF-κB signaling pathway is an important potential target for traditional Chinese medicine to prevent and treat reflux esophagitis and esophageal cancer, but there is a lack of comprehensive and systematic elaboration. Therefore, this paper summarized the relevant studies in recent years, analyzed the relationship among NF-κB signaling pathway, reflux esophagitis, esophageal cancer, and transformation from inflammation to cancer, and reviewed the research literature on the regulation of the NF-κB signaling pathway in traditional Chinese medicine to prevent and treat reflux esophagitis and esophageal cancer, so as to provide new ideas for the prevention and treatment of reflux esophagitis and esophageal cancer.

9.
Cancer Research and Treatment ; : 1001-1010, 2023.
Article Dans Anglais | WPRIM | ID: wpr-999779

Résumé

Purpose@#Inflammatory myofibroblastic tumor (IMT) is a rare mesenchymal malignancy that occurs primarily in children and adolescents. The clinical and pathological features of IMT in adult patients are not well understood. @*Materials and Methods@#We retrospectively searched for records of adult patients with IMT at Fudan University Shanghai Cancer Center from 2006 to 2021. Clinicopathological data, treatments, and outcomes were collected and analyzed. @*Results@#Thirty adult patients with IMT, mostly women (60.0%), were included. The median age of the patients was 38 (21-77). The most common primary site was abdominopelvic region (53.3%), followed by lungs (20.0%). Seven patients had an abdominal epithelioid inflammatory myofibroblast sarcoma (EIMS). The positivity rate of anaplastic lymphoma kinase (ALK) was 81.5% (22/27). Sixteen patients with advanced ALK-positive disease received crizotinib, with an objective response rate (ORR) of 81.3% and a disease control rate of 87.5%. The median progression-free survival was 20.8 months. EIMS was associated with more aggressive behavior; however, the prognosis was similar to that of non-EIMS patients after treatment with an ALK inhibitor. At a median follow-up time of 30 months (95% confidence interval [CI], 13.6 to 46.4), the 5-year overall survival was 77% (95% CI, 66 to 88) in all patients. @*Conclusion@#Adult IMTs appeared more aggressive, with a higher incidence of recurrence and metastases, and patients with EIMS had more aggressive cases. Treatment with ALK inhibitors resulted in a high ORR and a durable response, which suggested that ALK inhibitors could be used as a first-line treatment option in adult patients with ALK-positive advanced IMT.

10.
Acta Pharmaceutica Sinica ; (12): 2835-2852, 2023.
Article Dans Chinois | WPRIM | ID: wpr-999049

Résumé

The quality evaluation of traditional Chinese medicine is one of the key issues related to the modernization of traditional Chinese medicine. The quality evaluation technology system of traditional Chinese medicine mainly includes traditional evaluation (traits, microscopic and physicochemical identification), chemical evaluation and biological evaluation. Due to the complex composition of traditional Chinese medicine, the single detection method in the above evaluation technology system usually cannot obtain sufficient quality information. The multi-source information fusion strategy can organically integrate data from multiple analysis and detection technologies to obtain more comprehensive information of samples and improve the quality evaluation effect. At present, multi-source information fusion strategy has been widely used in the fields of military, industrial and food, and it is still in its infancy in the field of quality evaluation of traditional Chinese medicine. This research introduces the definition, structure, method (algorithm) and fusion level of multi-source information fusion, summarizes its research progress in the origin traceability, variety identification and pharmaceutical analysis of traditional Chinese medicine, and sorts out the specific methods of data fusion in each literature. Finally, we summarized, prospected and discussed the application, development and existing problems of information fusion technology and its application in the quality evaluation of traditional Chinese medicine, in order to provide reference for broadening the application of this technology in the field of traditional Chinese medicine.

11.
Chinese Journal of Radiological Health ; (6): 438-443, 2023.
Article Dans Chinois | WPRIM | ID: wpr-988219

Résumé

Objective To investigate the content of thorium (Th) in surface water in Sichuan Province, China, and to evaluate Th-associated health risk via water intake for residents. Methods Twenty-three monitoring sections were set in main surface water bodies in Sichuan Province. From 2016 to 2021, the Th radioactivity level in the water bodies was measured during dry and normal-water seasons. The health risk of residents was evaluated by calculating radioactive Th intake from the surface water bodies combined with the use of a health risk assessment model. Results The Th radioactivity level of the surface water bodies in Sichuan Province was 0.02-0.67 μ./L. There was no significant difference in the Th radioactivity level of different years or different surface water bodies (P > 0.05). A significant difference was observed in the Th radioactivity level of different water seasons (P < 0.05). The total mean annual committed effective doses of Th in all age groups caused by drinking water and water immersion ranged from 3.14 × 10−8 to 8.75 × 10−7 Sv, all lower than the World Health Organization (WHO)-recommended reference level of 0.1 mSv. The overall carcinogenic risks for residents in all age groups ranged from 3.93 × 10−10 to 1.09 × 10−8, all below the most rigorous control limits issued by WHO and International Commission on Radiological Protection. Conclusion The Th-associated health risk via direct water intake and water immersion in main surface water bodies of Sichuan Province is at an acceptable level. Th in main surface water bodies of Sichuan Province is safe for all age groups.

12.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 126-133, 2023.
Article Dans Chinois | WPRIM | ID: wpr-988188

Résumé

ObjectiveUltra-high performance liquid chromatography-quadrupole-electrostatic field orbitrap high resolution mass spectrometry(UHPLC-Q-Orbitrap HRMS) was used to identify the metabolites of limonin in rats, and to explore the gender differences in the distribution of prototype components and metabolites in rats after single dose intragastric administration of limonin, as well as to speculate the metabolic pathways. MethodThe separation was performed on a Thermo Scientific Accucore™ C18 column(3 mm×100 mm, 2.6 μm) with 0.1% formic acid aqueous solution(A)-0.1% formic acid acetonitrile solution(B) as mobile phase in a gradient elution mode(0-1 min, 5%B; 1-6 min, 5%-20%B; 6-18 min, 20%-50%B; 18-23 min, 50%-80%B; 23-25 min, 80%-95%B; 25-30 min, 95%B) at a flow rate of 0.3 mL·min-1 and a column temperature of 30 ℃. MS data of biological samples were collected under the positive ion mode of electrospray ionization(ESI) and in the scanning range of m/z 100-1 500. Plasma, tissues(heart, liver, spleen, lung, kidney, stomach and small intestine), urine and fecal samples were collected and prepared after intragastric administration, and the prototype component and metabolites of limonin were identified. ResultThe prototype component of limonin were detected in the feces, stomach, small intestine of female and male rats, and in the heart, liver, spleen, lung and kidney tissues of female rats. A total of 23 metabolites related to limonin were detected in rats, of which 2, 1, 5, 4, 23 metabolites were detected in liver, stomach, small intestine, urine and feces, respectively, and the main metabolic pathways were hydrolysis, reduction, hydroxylation and methylation, etc. The distribution of some metabolites differed between male and female rats. ConclusionThe prototype component of limonin are mainly distributed in the stomach and small intestine in rats, and the distribution of prototype component and some metabolites are different by gender. Limonin is mainly excreted through feces with phase Ⅰ metabolites as the main ones. The results of this study can provide a reference for further elucidation of the effect of gender differences on the metabolism of limonin in vivo and its mechanism of action.

13.
Chinese journal of integrative medicine ; (12): 1066-1076, 2023.
Article Dans Anglais | WPRIM | ID: wpr-1010314

Résumé

OBJECTIVE@#To explore the protective effect of Huoxin Pill (HXP) on acute myocardial ischemia-reperfusion (MIRI) injury in rats.@*METHODS@#Seventy-five adult SD rats were divided into the sham-operated group, model group, positive drug group (diltiazem hydrochloride, DH), high dose group (24 mg/kg, HXP-H) and low dose group (12 mg/kg, HXP-L) of Huoxin Pill (n=15 for every group) according to the complete randomization method. After 1 week of intragastric administration, the left anterior descending coronary artery of the rat's heart was ligated for 45 min and reperfused for 3 h. Serum was separated and the levels of creatine kinase (CK), creatine kinase isoenzyme (CK-MB) and lactate dehydrogenase (LDH), superoxide dismutase (SOD), and malondialdehyde (MDA), hypersensitive C-reactive protein (hs-CRP) and interleukin-1β (IL-1β) were measured. Myocardial ischemia rate, myocardial infarction rate and myocardial no-reflow rate were determined by staining with Evans blue and 2,3,5-triphenyltetrazolium chloride (TTC). Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and Bioinformatics Analysis Tool for Molecular mechANism of Traditional Chinese Medicine (BATMAN) databases were used to screen for possible active compounds of HXP and their potential therapeutic targets; the results of anti-inflammatory genes associated with MIRI were obtained from GeneCards, Drugbank, Online Mendelian Inheritance in Man (OMIM), and Therapeutic Target Datebase (TTD) databases was performed; Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment were used to analyze the intersected targets; molecular docking was performed using AutoDock Tools. Western blot was used to detect the protein expression of Toll-like receptor 4 (TLR4)/nuclear factor kappa-B (NFκB)/NOD-like receptor protein 3 (NLRP3).@*RESULTS@#Compared with the model group, all doses of HXP significantly reduced the levels of LDH, CK and CK-MB (P<0.05, P<0.01); HXP significantly increased serum activity of SOD (P<0.05, P<0.01); all doses of HXP significantly reduced the levels of hs-CRP and IL-1β (P<0.05, P<0.01) and the myocardial infarction rate and myocardial no-reflow rate (P<0.01). GO enrichment analysis mainly involved positive regulation of gene expression, extracellular space and identical protein binding, KEGG pathway enrichment mainly involved PI3K-Akt signaling pathway and lipid and atherosclerosis. Molecular docking results showed that kaempferol and luteolin had a better affinity with TLR4, NFκB and NLRP3 molecules. The protein expressions of TLR4, NFκB and NLRP3 were reduced in the HXP group (P<0.01).@*CONCLUSIONS@#HXP has a significant protective effect on myocardial ischemia-reperfusion injury in rats, and its effect may be related to the inhibition of redox response and reduction of the inflammatory response by inhibiting the TLR4NFκB/NLRP3 signaling pathway.


Sujets)
Humains , Rats , Animaux , Facteur de transcription NF-kappa B/métabolisme , Lésion de reperfusion myocardique/traitement médicamenteux , Protéine-3 de la famille des NLR contenant un domaine pyrine , Rat Sprague-Dawley , Protéine C-réactive , Récepteur de type Toll-4 , Phosphatidylinositol 3-kinases/métabolisme , Simulation de docking moléculaire , Transduction du signal , Infarctus du myocarde/traitement médicamenteux , Creatine kinase , L-Lactate dehydrogenase/métabolisme , Superoxide dismutase/métabolisme
14.
China Journal of Chinese Materia Medica ; (24): 1597-1605, 2023.
Article Dans Chinois | WPRIM | ID: wpr-970632

Résumé

The purpose of this study is to investigate whether chrysin reduces cerebral ischemia-reperfusion injury(CIRI) by inhi-biting ferroptosis in rats. Male SD rats were randomly divided into a sham group, a model group, high-, medium-, and low-dose chrysin groups(200, 100, and 50 mg·kg~(-1)), and a positive drug group(Ginaton, 21.6 mg·kg~(-1)). The CIRI model was induced in rats by transient middle cerebral artery occlusion(tMCAO). The indexes were evaluated and the samples were taken 24 h after the operation. The neurological deficit score was used to detect neurological function. The 2,3,5-triphenyl tetrazolium chloride(TTC) staining was used to detect the cerebral infarction area. Hematoxylin-eosin(HE) staining and Nissl staining were used to observe the morphological structure of brain tissues. Prussian blue staining was used to observe the iron accumulation in the brain. Total iron, lipid pero-xide, and malondialdehyde in serum and brain tissues were detected by biochemical reagents. Real-time quantitative polymerase chain reaction(RT-qPCR), immunohistochemistry, and Western blot were used to detect mRNA and protein expression of solute carrier fa-mily 7 member 11(SLC7A11), transferrin receptor 1(TFR1), glutathione peroxidase 4(GPX4), acyl-CoA synthetase long chain family member 4(ACSL4), and prostaglandin-endoperoxide synthase 2(PTGS2) in brain tissues. Compared with the model group, the groups with drug intervention showed restored neurological function, decreased cerebral infarction rate, and alleviated pathological changes. The low-dose chrysin group was selected as the optimal dosing group. Compared with the model group, the chrysin groups showed reduced content of total iron, lipid peroxide, and malondialdehyde in brain tissues and serum, increased mRNA and protein expression levels of SLC7A11 and GPX4, and decreased mRNA and protein expression levels of TFR1, PTGS2, and ACSL4. Chrysin may regulate iron metabolism via regulating the related targets of ferroptosis and inhibit neuronal ferroptosis induced by CIRI.


Sujets)
Rats , Mâle , Animaux , Rat Sprague-Dawley , Ferroptose , Transduction du signal , Encéphalopathie ischémique/métabolisme , Cyclooxygenase 2/métabolisme , ARN messager , Infarctus cérébral , Lésion d'ischémie-reperfusion/métabolisme , Malonaldéhyde , Infarctus du territoire de l'artère cérébrale moyenne
15.
China Journal of Chinese Materia Medica ; (24): 689-699, 2023.
Article Dans Chinois | WPRIM | ID: wpr-970538

Résumé

The peeled stems of Syringa pinnatifolia(SP) is a representative Mongolian folk medicine with the effects of anti-depression, heat clearance, pain relief, and respiration improvement. It has been clinically used for the treatment of coronary heart disease, insomnia, asthma, and other cardiopulmonary diseases. As part of the systematic study on pharmacological substances of SP, 11 new sesquiterpenoids were isolated from the terpene-containing fractions of the ethanol extract of SP by liquid chromatography-mass spectrometry(LC-MS) and proton nuclear magnetic resonance(~1H-NMR) guided isolation methods. The planar structures of the sesquiterpenoids were identified by MS, 1D NMR, and 2D NMR data analysis, and were named pinnatanoids C and D(1 and 2), and alashanoids T-ZI(3-11), respectively. The structure types of the sesquiterpenoids included pinnatane, humulane, seco-humulane, guaiane, carryophyllane, seco-erimolphane, isodaucane, and other types. However, limited to the low content of compounds, the existence of multiple chiral centers, the flexibility of the structure, or lack of ultraviolet absorption, the stereoscopic configuration remained unresolved. The discovery of various sesquiterpenoids enriches the understanding of the chemical composition of the genus and species and provides references for further analysis of pharmacological substances of SP.


Sujets)
Syringa , Sesquiterpènes , Terpènes , Asthme , Chromatographie en phase liquide
16.
Acta Academiae Medicinae Sinicae ; (6): 33-37, 2023.
Article Dans Chinois | WPRIM | ID: wpr-970443

Résumé

Objective To observe the effect of calcified lymph nodes on video-assisted thoracoscopic surgery (VATS) lobectomy in the chronic obstructive pulmonary disease (COPD) patients with lung cancer. Methods A retrospective analysis was conducted on the COPD patients with lung cancer who underwent VATS lobectomy in the Department of Thoracic Surgery in the First Affiliated Hospital of Hebei North University from May 2014 to May 2018.The patients were assigned into a calcified lymph node group and a control group according to the presence or absence of calcified lymph nodes in CT,and the size,morphology,and calcification degree of the lymph nodes were recorded.The operation duration,intraoperative blood loss,chest tube retention time,hospitalization days,and overall complication rate were compared between the two groups. Results The 30 patients in the calcified lymph node group included 17 patients with one calcified lymph node and 13 patients with two or more calcified lymph nodes,and a total of 65 calcified lymph nodes were recorded.The calcified lymph nodes with the size ≤5 mm were the most common (53.8%),and complete calcification was the most common form (55.4%) in lymph node calcification.The mean operation duration had no significant difference between the calcified lymph node group and the control group (t=-1.357,P=0.180).The intraoperative blood loss (t=-2.646,P=0.010),chest tube retention time (t=-2.302,P=0.025),and hospitalization days (t=-2.274,P=0.027) in the calcified lymph node group were higher than those in the control group. Conclusion Calcified lymph nodes increase the difficulty and risk of VATS lobectomy in the COPD patients with lung cancer.The findings of this study are conducive to predicting the perioperative process of VATS lobectomy.


Sujets)
Humains , Perte sanguine peropératoire , Études rétrospectives , Tumeurs du poumon/chirurgie , Broncho-pneumopathie chronique obstructive , Calcinose , Noeuds lymphatiques
17.
Journal of Clinical Hepatology ; (12): 2697-2704, 2023.
Article Dans Chinois | WPRIM | ID: wpr-998829

Résumé

Hepatocellular carcinoma (HCC) is a major cause of cancer-related death, and surgical resection remains an important method for radical treatment, but it is urgently needed to solve the problem of high postoperative recurrence rate. Neoadjuvant therapy can reduce the high recurrence rate after surgery, and there are little benefits from neoadjuvant therapy for HCC due to a lack of effective treatment methods in the past. At present, combination therapy based on immune checkpoint inhibitors has a relatively high response rate and has thus changed the treatment landscape for patients with advanced HCC. This urges investigators to reexamine the neoadjuvant treatment strategies for HCC, and it is expected that neoadjuvant therapy can provide new opportunities, reduce the postoperative recurrence rate, and improve the survival rate after treatment. This article discusses the current status and prospects of neoadjuvant therapy for HCC and related hot topics, so as to provide more ideas for exploring neoadjuvant therapy for HCC.

18.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 207-217, 2023.
Article Dans Chinois | WPRIM | ID: wpr-997674

Résumé

Colorectal cancer (CRC), a malignant tumor of the digestive system, originates from the colorectal mucosa epithelium and is usually asymptomatic until it progresses to an advanced stage. With high incidence around the globe and the increasingly younger patients, this disease poses a serious threat to the health and lives of the patients. Although the pathogenesis of this disease is not fully understood, it is generally believed that it is associated with autophagy, apoptosis, and inflammation. Autophagy and apoptosis as two types of programmed cell death are subject to complex interactive regulation, and the imbalance between them is closely related to the occurrence, development, and prognosis of a variety of diseases. Studies have shown that autophagy-apoptosis balance plays a key role in CRC. On the one hand, autophagy and apoptosis coordinate with each other to inhibit CRC cell growth. On the other hand, autophagy can antagonize apoptosis to promote CRC cell growth. In clinical practice, surgery is often combined with radiotherapy and chemotherapy to treat CRC, which can control the progression of CRC to a certain extent but has serious adverse effects and poor long-term results. In recent years, traditional Chinese medicine (TCM) has been proved to be effective in the treatment of CRC. Studies have shown that numerous herbal active components can promote CRC cell death by regulating the autophagy-apoptosis balance, thereby blocking the progression of this disease. The process of autophagy-apoptosis balance in regulating cell activities has similar theoretical connotations with the Yin and Yang theory of TCM. Applying TCM in regulating autophagy-apoptosis balance at various stages of CRC has become a frontier, while the comprehensive elaboration remains to be conducted. By reviewing the relevant studies in recent years, this paper introduces the correlation between the Yin and Yang theory and the autophagy-apoptosis balance, the role of autophagy-apoptosis balance in CRC, and the research progress in the application of 27 Chinese herbal active components such as flavonoids, terpenoids, glycosides, and phenols capable of regulating autophagy-apoptosis balance in the treatment of CRC. The active components in Chinese medicines can recover the autophagy-apoptosis balance in CRC by acting on microtuble-associated protein 1 light chain 3(LC3), Beclin-1, and B-cell lymphoma-2(Bcl-2)to regulate multiple signaling pathways such as protein kinase B(Akt)/mammalian target of rapamycin(mTOR)and reavtive oxygen species(ROS)/ c-Jun N-terminal kinase(JNK), thus balancing Yin and Yang. This review aims to provide a reference for the treatment of CRC and the development of new drugs.

19.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 228-237, 2023.
Article Dans Chinois | WPRIM | ID: wpr-996525

Résumé

Ulcerative colitis (UC) is a disease that affects the mucosal and submucosal layers of the colon and is characterized by inflammation of the intestinal mucosa. The incidence of UC is increasing year by year, and it is complex and refractory, severely impacting the physical and mental health of patients. The pathological mechanism of this disease is complex, with immune responses and uncontrollable inflammatory reactions in the intestine being important physiopathologic mechanisms. Toll-like receptor 4 (TLR4), as a transmembrane signaling receptor, plays a key role in mediating immune responses and inflammatory reactions in the development of UC. Currently, the treatment of UC mainly relies on salicylic acids, glucocorticoids, and other agents to reduce intestinal inflammation. While these drugs can partially inhibit the progression of the disease, they often come with significant adverse effects and the potential for relapse upon discontinuation. Traditional Chinese medicine (TCM) offers multiple pathways, effects, and targets for regulating the TLR4 pathway, suppressing inflammatory responses, and effectively intervening in the progression of UC. This approach has become a hot topic in the prevention and treatment of UC. Numerous studies have shown that TCM treatment of UC has unique advantages. TCM can enhance immune defenses, suppress inflammatory responses, promote intestinal mucosal healing, and maintain the balance of the intestinal microbiota by regulating the TLR4 signaling pathway, thereby effectively treating UC, with substantial progress achieved. However, there is currently a lack of comprehensive reviews on the role of TCM in regulating the TLR4 signaling pathway for the treatment of UC. Therefore, this article systematically summarized the relationship between the TLR4 signaling pathway and UC, as well as the role of TCM in this context, by reviewing relevant literature from recent years, aiming to provide new insights into the potential treatment and new drug development for UC.

20.
China Pharmacy ; (12): 2427-2432, 2023.
Article Dans Chinois | WPRIM | ID: wpr-996404

Résumé

Pancreatic cancer is one of the most destructive malignant tumors; the pathogenesis of this disease is complex and is closely related to genetic susceptibility, chronic pancreatitis, and gene mutations in signaling pathways. The phosphoinositide 3- kinase (PI3K)/protein kinase B (Akt) signaling pathway is a classical cancer signaling pathway that is aberrantly activated in pancreatic cancer cells. In recent years, it has been found that traditional Chinese medicine (TCM) monomers show special activity in the treatment of pancreatic cancer and can be potential drug for the treatment of pancreatic cancer. Based on PI3K/Akt signaling pathway, this paper summarizes the mechanism of TCM monomer intervening in pancreatic cancer and finds that TCM monomer of alkaloids (sinomenine, dictamnine, dauricine, etc.), terpenoids (saikosaponin A, linderalactone, isoalantolactone, etc.), phenols (6-gingerol, curcumin, pterostilbene, etc.), flavonoids (fisetin, kaempferol, quercetin, etc.) and quinones (β-hydroxyisovaleryl shikonin, rhein, lucidone, etc.) can inhibit the proliferation, invasion and migration of pancreatic cancer cells, regulate autophagy and apoptosis, and then inhibit the pathological process of pancreatic cancer by inhibiting PI3K/Akt signaling pathway.

SÉLECTION CITATIONS
Détails de la recherche