Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 2.052
Filtrar
1.
Chinese journal of integrative medicine ; (12): 222-229, 2024.
Artículo en Inglés | WPRIM | ID: wpr-1010311

RESUMEN

OBJECTIVE@#To determine the role of Tripterygium wilfordii multiglycoside (TGW) in the treatment of psoriatic dermatitis from a cellular immunological perspective.@*METHODS@#Mouse models of psoriatic dermatitis were established by imiquimod (IMQ). Twelve male BALB/c mice were assigned to IMQ or IMQ+TGW groups according to a random number table. Histopathological changes in vivo were assessed by hematoxylin and eosin staining. Ratios of immune cells and cytokines in mice, as well as PAM212 cell proliferation in vitro were assessed by flow cytometry. Pro-inflammatory cytokine expression was determined using reverse transcription quantitative polymerase chain reaction.@*RESULTS@#TGW significantly ameliorated the severity of IMQ-induced psoriasis-like mouse skin lesions and restrained the activation of CD45+ cells, neutrophils and T lymphocytes (all P<0.01). Moreover, TGW significantly attenuated keratinocytes (KCs) proliferation and downregulated the mRNA levels of inflammatory cytokines including interleukin (IL)-17A, IL-23, tumor necrosis factor α, and chemokine (C-X-C motif) ligand 1 (P<0.01 or P<0.05). Furthermore, it reduced the number of γ δ T17 cells in skin lesion of mice and draining lymph nodes (P<0.01).@*CONCLUSIONS@#TGW improved psoriasis-like inflammation by inhibiting KCs proliferation, as well as the associated immune cells and cytokine expression. It inhibited IL-17 secretion from γ δ T cells, which improved the immune-inflammatory microenvironment of psoriasis.


Asunto(s)
Masculino , Animales , Ratones , Tripterygium , Psoriasis/tratamiento farmacológico , Queratinocitos , Enfermedades de la Piel/metabolismo , Citocinas/metabolismo , Imiquimod/metabolismo , Dermatitis/patología , Modelos Animales de Enfermedad , Ratones Endogámicos BALB C , Piel/metabolismo
2.
International Eye Science ; (12): 753-757, 2024.
Artículo en Chino | WPRIM | ID: wpr-1016590

RESUMEN

Laser photocoagulation is one of the important methods for treating retinal diseases, and retinal laser technology continues to advance. For decades, researchers have been striving to find a laser treatment that can minimize tissue damage while achieving optimal results. With low toxicity, low scattering light, strong penetrating power, small compared with the traditional laser damage, light reaction and no pain, the 577 nm subthreshold micropulse laser(SML)turns this goal into reality and ushers in a new era of laser treatment for fundus diseases. This article reviews the concept, mechanism, related parameters and clinical application progress of 577 nm SML in a variety of retinal diseases, aiming to provide references for clinical treatments.

3.
Journal of Clinical Hepatology ; (12): 682-687, 2024.
Artículo en Chino | WPRIM | ID: wpr-1016509

RESUMEN

Biliary tract carcinoma (BTC) is a type of gastrointestinal tumor with a low incidence rate and a strong invasive ability, mainly including intrahepatic cholangiocarcinoma (ICC), extrahepatic cholangiocarcinoma (ECC), and gallbladder carcinoma (GC), often accompanied by local progression or distant metastasis. Surgery is often the preferred treatment method for patients with local resectable tumor; however, there is still a high risk of recurrence after radical surgery. Therefore, multiple treatment modalities are often required for BTC patients, including surgical resection, systemic treatment (such as targeted therapy, chemotherapy, and immunotherapy), and/or a combination of local treatment methods. With the development of the field of BTC, it is critical for surgical oncologists to understand and master the latest surgical strategies and the best patient selection and management systems. In view of the complexity of treatment and the continuous development of diagnosis and treatment techniques, Annals of Surgical Oncology, an authoritative American journal of cancer surgery, recently published the practical diagnosis and treatment guidelines for hepatobiliary tumors, including hepatocellular carcinoma (HCC), ICC, ECC, and GC, aiming to provide more evidence-based evidence for the clinical management and decision-making of patients with hepatobiliary tumors. Due to the limitations of length and different emphases, this article mainly introduces the recommendations for the evaluation points and clinical treatment of ECC and GC in the guidelines, so as to provide a reference for clinical practice.

4.
Chinese Journal of Clinical Pharmacology and Therapeutics ; (12): 52-60, 2024.
Artículo en Chino | WPRIM | ID: wpr-1014573

RESUMEN

AIM: To establish a method for quantitation of cefepime and avibactam in M-H broth, and applicated in the in vitro dynamic PK/PD model. METHODS: The cefepime was also determined using the high-performance liquid chromatography method (HPLC), the avibactam was also determined using the liquid chromatography-mass spectrometry (LC-MS/MS), an in vitro dynamic PK/PD model was established to study the PK/PD relationship of cefepime/avibactam against carbapenem resistant Klebsiella pneumoniae (CRKP). RESULTS: The linear ranges of cefepime and avibactam were good at (0.5-20) and (0.1-25) μg/mL (r=0.999), and the lower limit concentrations were 0.5 and 0.1 μg/mL. The extraction recoveries of cefepime and avibactam in M-H broth were 88.0%-101.7% and 90.9%-95.2%, the relative standard deviation of intra-day precision and inter-day precision were less than 5.2%. The concentration-time curves were well simulated by the PK/PD model. All observed concentrations in each experiment were in the range of 20% of the targeted values. For the CRKP of MIC=8 μg/mL and MIC=16 μg/mL, the colony decreased to 2.783Log10 CFU/mL and 1.325Log10 CFU/mL at the cefepime/avibactam 2.5 g q8 h administration after 24 h. CONCLUSION: The determination method of cefepime and avibactam in broth established in this study has high sensitivity and good stability. For the CRKP with MIC≤8 μg/mL,cefepime/avibactam showed that good anti-CRKP activity under routine administration in vitro dynamic PK/PD model.

5.
Journal of Environmental and Occupational Medicine ; (12): 303-310, 2024.
Artículo en Chino | WPRIM | ID: wpr-1013438

RESUMEN

Background Sleep is a crucial physiological activity for the human body, and research has shown that air pollution can affect sleep quality. However, the association between polycyclic aromatic hydrocarbons (PAHs) exposure, neurotoxic compounds in air pollutants, and sleep quality remains uncertain. Objective To evaluate the association of PAHs exposure with sleep quality, and to provide evidence for improving sleep quality. Methods This study used a cross-sectional design. We selected 632 workers from a coking plant of a large state-owned enterprise as the exposure group, and 477 workers from the energy and power plant of the same enterprise as the control group. All workers worked in three shifts. A questionnaire survey was conducted to collect basic information including gender, years of service, age, educational level, smoking, alcohol consumption, consumption of fried foods, cooking frequency, types of cooking fuels. Worker's post-shift morning midstream urine was sampled to determine the concentrations of eight PAHs metabolites (OH-PAHs) using gas chromatography-tandem mass spectrometry (GC-MS). Worker's sleep quality was assessed using Pittsburgh Sleep Quality Index (PSQI). A higher PSQI score indicated a lower sleep quality. Associations of urinary OH-PAHs levels with sleep quality in the workers were analyzed using linear regression, Bayesian kernel-machine regression (BKMR), and quantile g-computation. Results The median (P25, P75) concentration of total OH-PAHs in the exposure group [88.84 (46.27, 151.96) μg·L−1] was higher than that in the control group [54.33 (24.86, 97.97) μg·L−1]. Additionally, the PSQI score (\begin{document}$ \overline{x}\pm {s} $\end{document}) in the exposure group (5.16±3.84) was higher than that in the control group (4.60±3.17). The multiple linear regression revealed that an increase in the sum of the concentrations of eight OH-PAHs after natural logarithmic transformation (lnΣ8OH-PAHs) was associated with an increase of 0.3646 (95%CI: 0.1337, 0.5955) in PSQI score, and an increase in lnΣlow-ring OH-PAHs was associated with an increase of 0.2954 (95%CI: 0.0941, 0.4967) in PSQI score. The BKMR analysis demonstrated that PSQI score was gradually increased as the increasing of lnΣ8OH-PAHs concentration. The quantile g-computation analysis indicated that a quantile increase in lnΣ8OH-PAHs concentration was associated with an increase of 0.4062% (95%CI: 0.1176%, 0.6949%) in PSQI score. Conclusion Compared to the controls, the coking workers show a higher concentration of urinary OH-PAHs and report worse sleep quality. The concentration of OH-PAHs is significantly negatively associated with sleep quality.

6.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 10-18, 2024.
Artículo en Chino | WPRIM | ID: wpr-1013335

RESUMEN

ObjectiveThis study aims to investigate the inhibitory effect of Wutoutang on pannus formation in adjuvant-induced arthritis (AIA) rats with wind-cold-dampness Bi syndrome and its potential mechanism. MethodA total of 40 male SD specific pathogen-free (SPF) rats were selected and divided into blank group, wind-cold-dampness Bi syndrome group [Complete Freund's Adjuvant (CFA), 200 μg], Wutoutang group (15 g·kg-1·d-1), and indometacin group (10 mg·kg-1) according to random number table method. Except for the blank group, the other groups were given wind-cold-dampness stimulation before the CFA injection. After the rats were administered for 30 days, the basic conditions, onset time, arthritis index score, and foot swelling volume of AIA rats with wind-cold-dampness Bi syndrome were observed. Finally, peripheral arterial blood, ankle joint, and synovial tissue were taken. Enzyme-linked immunosorbent assay (ELISA) was used to detect serum hypoxia-inducible factor-1α (HIF-1α), vascular endothelial growth factor A (VEGFA) protein content, and rheumatism, including anti-O (ASO), C-reactive protein (CRP), and rheumatoid factor (RF). Hematoxylin-eosin (HE) staining revealed the changes in joint histomorphology. Immunohistochemistry was used to detect the expression of HIF-1α and VEGFA, two important proteins in the ankle pathway. Quantitative real-time polymerase chain reaction (Real-time PCR) was used to reveal mRNA levels of HIF-1α, VEGFA, angiopoietin-1 (Ang-1), and angiopoietin-2 (Ang-2) in rat synovial tissue. ResultThe foot swelling volume and arthritis score of AIA rats with wind-cold-dampness Bi syndrome were substantially higher (P<0.01) compared with the blank group. Serum CRP, RF, and ASO levels were considerably elevated (P<0.01). HE staining showed obvious hyperplasia of ankle synovium and synovial inflammation, angiogenesis and pannus formation, and aggravated bone destruction, indicating successful modeling. After the intervention of Wutoutang, the onset time was delayed (P<0.01). Foot swelling volume and arthritis score were decreased (P<0.01). Serum CRP, RF, and ASO levels were significantly decreased (P<0.01). The inflammatory hyperplasia of synovial tissue, angiogenesis and pannus formation, and bone destruction were alleviated. The mRNA levels of HIF-1α, VEGFA, Ang-1, and Ang-2 in the synovial membrane were significantly decreased (P<0.05, P<0.01). The expressions of HIF-1α and VEGFA in serum and ankle joints were decreased (P<0.01). In the indomethacin group, the onset time of the disease was delayed (P<0.01). Foot swelling volume and arthritis score were decreased (P<0.01). Serum CRP, RF, and ASO levels were significantly decreased (P<0.01). HIF-1α/VEGFA/Ang signaling pathway was activated, and pathological tissue injury was improved. ConclusionWutoutang can delay the onset time of AIA rats with wind-cold-dampness Bi syndrome, reduce foot swelling volume, arthritis score, rheumatic activity, and improve joint histopathology. It can inhibit pannus formation, and its mechanism may be related to down-regulating the expression of the HIF-1α/VEGFA/Ang pathway.

7.
Journal of Clinical Hepatology ; (12): 489-495, 2024.
Artículo en Chino | WPRIM | ID: wpr-1013126

RESUMEN

ObjectiveTo investigate the potential effect of ursodeoxycholic acid (UDCA) in the prevention and treatment of COVID-19 in patients with chronic hepatitis B. MethodsClinical data were collected from 324 patients with chronic hepatitis B who were treated in Beijing Ditan Hospital, Capital Medical University, from January to December 2022, and according to whether UDCA was administered, they were divided into UDCA group and control group. The propensity score matching (PSM) method was used to balance the confounding factors such as age, sex, and chronic complications, and the two groups were compared in terms of SARS-CoV-2 infection rate, symptoms, and recovery time after COVID-19. The two groups were also compared in terms of related laboratory markers (white blood cell count [WBC], hemoglobin [Hb], platelet count [PLT], alanine aminotransferase [ALT], aspartate aminotransferase [AST], albumin [Alb], alkaline phosphatase [ALP], total bilirubin [TBil], triglyceride [TG], and total cholesterol [TC]), vaccination, and the incidence rate of liver disease symptoms after COVID-19. The independent-samples t test was used for comparison of normally distributed continuous data between two groups, and the Mann-Whitney U test was used for comparison of data with skewed distribution between the two groups; the chi-square test and the continuously corrected chi-square test were used for comparison of categorical data between two groups. The binary Logistic regression model was used for univariate and multivariate analyses to investigate the influencing factors for COVID-19 after matching. ResultsThere were 87 patients in the UDCA group and 237 patients in the control group, and after PSM, there were 78 patients in the UDCA group and 137 patients in the control group, with good balance between the two groups. There was a significant difference in SARS-CoV-2 infection rate between the UDCA group and the control group [82.1% (64/78) vs 95.6% (131/137), χ2=10.847, P=0.001]. After COVID-19, compared with the control group, the UDCA group had a significantly lower proportion of the patients with chill (10.9% vs 38.9%, χ2=16.124, P<0.001) and cough (56.3% vs 74.8%, χ2=6.889, P=0.009). There was a significant difference between the UDCA group and the control group in the proportion of the patients with a recovery time of ≤7 days after COVID-19 (79.7% vs 61.1%, χ2=6.760, P=0.009). Both univariate and multivariate logistic regression analyses showed that UDCA was an independent influencing factor for COVID-19 (odds ratio=0.21 and 0.17, both P<0.05). ConclusionUDCA is an protective factor against COVID-19 in patients with chronic hepatitis B and can alleviate related symptoms to some extent and shorten the recovery time, and therefore, it has an important value in the prevention and treatment of COVID-19.

8.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 134-140, 2024.
Artículo en Chino | WPRIM | ID: wpr-1012702

RESUMEN

ObjectiveTo evaluate the efficacy and safety of Rongjin Tongbi decoction on sciatica caused by lumbar intervertebral disc herniation with liver and kidney deficiency type based on a randomized controlled study. MethodFrom January 2019 to July 2022, 90 patients in the department of Traditional Chinese medicine(TCM) of Beijing Jishuitan Hospital who met the inclusion criteria were selected and divided into two groups according to the random number table, with 45 patients in each group. During the study, 19 cases dropped out, with 41 cases included in the final observation group and 30 cases in the control group. The observation group was given Rongjin Tongbi decoction orally, and the control group was given Loxoprofen Sodium Tablets orally for 28 days. The differences in the visual analog scale (VAS) scores, the Japanese Orthopaedic Association (JOA) scores, activities of daily living (ADL) assessments, TCM clinical symptoms, subjective symptoms, and clinical signs scores between two groups before and after treatment were observed. Liver and kidney functions and gastrointestinal adverse reactions were detected for safety evaluation. ResultBefore treatment, there was no statistically significant difference in scores between the observation group and the control group. After treatment, the absolute values of the differences in VAS and ADL scores in the observation group were higher than those in the control group (P<0.05). There was no statistically significant difference in the absolute value of the difference in JOA scores between two groups. The absolute value of the difference in TCM clinical symptom scores in the observation group was higher than that in the control group (P<0.01). There was no statistically significant difference in the absolute values of the differences in subjective symptom and clinical sign scores between two groups. The levels of liver and kidney function indicators in both groups before and after the experiment were normal, and there was no significant difference in gastrointestinal reactions. ConclusionRongjin Tongbi decoction can significantly improve the symptoms of sciatica patients caused by lumbar intervertebral disc herniation with liver and kidney deficiency type. After treatment, the patients exhibited significant improvements in pain, activity and other aspects, and it is proven to be safe and reliable, which is conducive to the recovery of physical function.

9.
Chinese Journal of School Health ; (12): 198-202, 2024.
Artículo en Chino | WPRIM | ID: wpr-1012467

RESUMEN

Objective@#To analyze prevalence and associated factors of attempting e cigarettes use among senior high school students in Beijing City between 2019 and 2023, in order to providing references for the construction of smoke free senior high schools environments.@*Methods@#In 2019, 9 137 students from 44 senior high schools in Beijing City were monitored, including 27 general senior high schools and 17 vocational senior high schools. In 2023, the study included 6 709 students from 30 senior high schools comprising 21 general senior high schools and 9 vocational senior high schools. On site investigations using anonymous questionnaires were conducted. The monitoring content included demographic information, second hand smoke exposure, tobacco product use and tobacco awareness. Chi square test was used to compare the differences of various indicators in different groups, and multivariate Logistic regression analysis was adopted to analysis the influencing factors among senior high school students attempting to use e cigarettes between 2019 and 2023.@*Results@#In 2019, the rates of vocational senior high school and general senior high school students attempting to use e-cigarettes were 22.57% and 9.78%, respectively. In 2023, it decreased to 14.39% and 6.43%, respectively. In 2019 ( OR =1.59,95% CI =1.35-1.88) and 2023 ( OR =1.71,95% CI =1.38-2.11), vocational senior high school students both hold higher risk of attempting to use e-cigarettes,compared with general senior high school students. In 2019, non-indigenous senior high school students attempting to use e cigarettes were more than indigenous senior high school students ( OR = 1.28 , 95% CI =1.05-1.56). In 2019 ( OR =1.62, 95% CI =1.34-1.95) and 2023 ( OR =1.77, 95% CI =1.35-2.31), smoking anywhere in households increased the risk of attempting to use e-cigarettes among senior high school students. In both 2019 and 2023, not attempting to smoke cigarettes ( OR =0.24,95% CI =0.21-0.29; OR =0.15,95% CI =0.11-0.19), not currently smoking cigarettes ( OR =0.29,95% CI =0.22-0.40; OR =0.30,95% CI =0.17-0.53), not being exposed to secondhand smoke in school ( OR =0.62, 95% CI = 0.53 -0.72; OR =0.51, 95% CI =0.41-0.64) or in outdoor public places ( OR =0.74, 95% CI =0.63-0.86; OR = 0.62 , 95% CI =0.50-0.78) all reduced the risk of attempting to use e-cigarettes among senior hgih school students( P <0.05).@*Conclusion@#The influencing factors of attempts by senior high school students in Beijing City to use e-cigarettes are generally consistent between 2023 and 2019, with a focus on vocational senior high schools to ensure the continuity of intervention measures and promote the construction of smoke free senior high schools.

10.
Cancer Research on Prevention and Treatment ; (12): 34-42, 2024.
Artículo en Chino | WPRIM | ID: wpr-1007226

RESUMEN

Objective To explore the prognostic value and immune infiltration landscape of anoikis-related long noncoding RNAs (arlncRNAs) in lung adenocarcinoma. Methods RNA-seq and clinical data of lung adenocarcinoma were downloaded from the TCGA database, and anoikis-related genes were obtained from the GeneCards and Harmonizome databases. Coexpression, differential, and WGCNA analyses were performed to screen differentially expressed arlncRNAs closely related to the occurrence of lung adenocarcinoma. A prognostic risk model was then constructed based on the arlncRNAs, and its predictive efficacy was further validated. Finally, consensus clustering was used to identify the molecular subtypes associated with anoikis in lung adenocarcinoma. Results Seven prognostic arlncRNAs were identified, and the prognostic risk models established based on them had AUC values of ROC curves greater than 0.7. Survival and immune infiltration analyses revealed that low-risk patients had high overall survival and immune infiltration, implying that they experienced good immune treatment effects. Drug sensitivity analysis showed that the high-risk patients were more sensitive to commonly used chemotherapeutic agents than the low-risk patients. According to the expression of model genes, subtypes C1 and C2 were identified through consensus clustering, and C1 showed a good prognosis. Conclusion The prognostic risk model based on the seven arlncRNAs can effectively predict the prognosis of lung adenocarcinoma patients. The results of immune-related and drug sensitivity analyses provide a reference for the precise individualized treatment of patients with lung adenocarcinoma.

11.
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery ; (12): 99-104, 2024.
Artículo en Chino | WPRIM | ID: wpr-1006517

RESUMEN

@#Objective     To investigate the relationship between preoperative mean daily step counts and pulmonary complications after thoracoscopic lobectomy in elderly patients. Methods     From 2018 to 2021, the elderly patients with pulmonary complications after thoracoscopic lobectomy were included. A 1∶1 propensity score matching was performed with patients without pulmonary complications. The clinical data were compared between the two groups. Results    Totally, 100 elderly patients with pulmonary complications were enrolled, including 78 males and 22 females, aged 66.4±4.5 years. And 100 patients without pulmonary complications were matched, including 71 males and 29 females aged 66.2±5.0 years. There was no significant difference in the preoperative data between the two groups (P>0.05). Compared to the patients with pulmonary complications, the ICU stay was shorter (8.1±4.4 h vs. 12.9±7.5 h, P<0.001), the first out-of-bed activity time was earlier (8.8±4.5 h vs. 11.2±6.1 h, P=0.002), and the tube incubation time was shorter (19.3±9.2 h vs. 22.5±9.4 h, P=0.015) in the patients wihout pulmonary complications. There was no statistical difference in other perioperative data between the two groups (P>0.05). The mean daily step counts in the pulmonary complications group were significantly less than that in the non-pulmonary complications group (4 745.5±2 190.9 steps vs. 6 821.1± 2 542.0 steps, P<0.001). The daily step counts showed an upward trend for three consecutive days in the two groups, but the difference was not significant. Conclusion     The decline of preoperative mean daily step counts is related to pulmonary complications after thoracoscopic lobectomy in elderly patients. Recording daily step counts can promote preoperative active exercise training for hospitalized patients.

12.
Biomolecules & Therapeutics ; : 484-495, 2023.
Artículo en Inglés | WPRIM | ID: wpr-999701

RESUMEN

Idiopathic pulmonary fibrosis (IPF) can be defined as a progressive chronic pulmonary disease showing scarring in the lung parenchyma, thereby resulting in increase in mortality and decrease in the quality of life. The pathophysiologic mechanism of fibrosis in IPF is still unclear. Repetitive microinjuries to alveolar epithelium with genetical predisposition and an abnormal restorative reaction accompanied by excessive deposition of collagens are involved in the pathogenesis. Although the two FDA-approved drugs, pirfenidone and nintedanib, are under use for retarding the decline in lung function of patients suffered from IPF, they are not able to improve the survival rate or quality of life. Therefore, a novel therapeutic agent acting on the major steps of the pathogenesis of disease and/or, at least, managing the clinical symptoms of IPF should be developed for the effective regulation of this incurable disease. In the present review, we tried to find a potential of managing the clinical symptoms of IPF by natural products derived from medicinal plants used for controlling the pulmonary inflammatory diseases in traditional Asian medicine. A multitude of natural products have been reported to exert an antifibrotic effect in vitro and in vivo through acting on the epithelial-mesenchymal transition pathway, transforming growth factor (TGF)-β-induced intracellular signaling, and the deposition of extracellular matrix. However, clinical antifibrotic efficacy of these natural products on IPF have not been elucidated yet. Thus, those effects should be proven by further examinations including the randomized clinical trials, in order to develop the ideal and optimal candidate for the therapeutics of IPF.

13.
Acta Pharmaceutica Sinica ; (12): 1211-1220, 2023.
Artículo en Chino | WPRIM | ID: wpr-978696

RESUMEN

The secondary metabolites of plants are important sources of natural drugs. Betula plants have abundant pharmacological value, complex mechanism and wide applications, which are closely related to the triterpenoids of theirs. Triterpenoids in Betula species are mainly divided into dammarane-type, ocotillol-type, oleanane-type, lupane-type and cycloaltunane-type. The extracts of Betula species have varieties of activities such as anti-tumor, anti-inflammatory, anti-oxidant, anti-bacterial, etc. And the biosynthetic pathways of triterpenoids after 2,3-oxidosqualene are split into four branches of dammarenediol-II, lupeol, cycloartenol and amyrin according to the different oxidosqualene cyclases. This review summarizes the chemical constituents, pharmacological activities and biosynthetic pathways of triterpenoids in Betula plants. It provides a reference for the research and development of new drugs and the production of these triterpenoids in microbial cell factories by synthetic biology methods.

14.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 222-230, 2023.
Artículo en Chino | WPRIM | ID: wpr-961702

RESUMEN

ObjectiveTo investigate the pharmacodynamic characteristics and explore the molecular mechanism of Honghua oral liquid (HOL) in relieving neuropathic pain (NP). MethodHealthy male SD rats were randomly assigned into sham group, model group, low-, medium-, high-dose (0.5, 1.0, 2.0 mL·kg-1·d-1, respectively) HOL groups, and a positive drug (pregabalin, 25 mg·kg-1·d-1) group, with 6 rats in each group. Spinal nerve ligation (SNL) of L5 was conducted in other groups except the sham group. Drug administration was performed 3 days after the SNL surgery for 2 consecutive weeks, and samples were collected after the end of the administration. During the treatment period, the mechanical pain threshold and cold pain threshold were determined to measure the pain-relieving effect of HOL. Transcriptome sequencing was performed on hippocampal tissue samples from the sham, model, and high-dose HOL groups, and differentially expressed genes between the sham group and the model group as well as the model group and HOL high-dose group were obtained. After pathway enrichment analysis, we selected the targets which were closely related to neuroinflammation for validation, and predicted the specific binding sites of the major active components in HOL with the targets through molecular docking. In addition, the serum levels of tumor necrosis factor-α (TNF-α) and interleukin-10 (IL-10) were determined by enzyme-linked immunosorbent assay (ELISA) to evaluate the effect of HOL on neuroinflammation in NP rats. ResultCompared with the sham group, SNL decreased the mechanical pain threshold and cold pain threshold (P<0.05). Compared with the model group, HOL recovered the mechanical pain threshold and cold pain threshold (P<0.05). The transcriptome data showed that 376 differentially expressed genes (DEGs) were identified between the model group and the sham group, including 124 upregulated genes and 252 downregulated genes, and 194 DEGs between the model group and the high-dose HOL group, including 33 upregulated genes and 161 downregulated genes. Among them, insulin-like growth factor 1(IGF1), matrix metallopeptidase-2 (MMP-2), matrix metallopeptidase-14 (MMP-14), erb-B2 receptor tyrosine kinase 2 (ERBB2), and integrin subunit alpha 5 (ITGA5) associated with NP were selected for further validation. The Real-time fluorescence quantitative polymerase chain reaction(Real-time PCR) results showed that compared with the sham group, the modeling up-gurelated the mRNA levels of the above five molecules in the hippocampus (P<0.01). Compared with model group, HOL down-regulated the mRNA levels of these molecules (P<0.01). The molecular docking results showed that the main active components of safflower, hydroxysafflor yellow A, kaempferol, and quercetin, formed stable hydrogen bonds with the amino acid residues of IGF1, MMP-2, MMP-14, ERBB2, and ITGA5. The enzyme-linked immunosorbent assay(ELISA) results showed that compared with those in the sham group, the serum levels of TNF-α and IL-10 were out of balance in the model rats (P<0.01). Compared with the model group, HOL lowered the level of the pro-inflammatory cytokine TNF-α (P<0.01) and elevated that of the anti-inflammatory cytokine IL-10 (P<0.05). ConclusionHOL exerts analgesic effect on SNL rats by inhibiting neuroinflammation.

15.
Journal of Central South University(Medical Sciences) ; (12): 1252-1259, 2023.
Artículo en Inglés | WPRIM | ID: wpr-1010349

RESUMEN

As a crucial regulatory molecule in the context of vascular stenosis, transforming growth factor-β (TGF-β), plays a pivotal role in its initiation and progression. TGF-β, a member of the TGF-β superfamily, can bind to the TGF-β receptor and transduce extracellular to intracellular signals through canonical Smad dependent or noncanonical signaling pathways to regulate cell growth, proliferation, differentiation, and apoptosis. Restenosis remains one of the most challenging problems in cardiac, cerebral, and peripheral vascular disease worldwide. The mechanisms for occurrence and development of restenosis are diverse and complex. The TGF-β pathway exhibits diversity across various cell types. Hence, clarifying the specific roles of TGF-β within different cell types and its precise impact on vascular stenosis provides strategies for future research in the field of stenosis.


Asunto(s)
Humanos , Factor de Crecimiento Transformador beta/metabolismo , Constricción Patológica , Transducción de Señal , Diferenciación Celular , Enfermedades Vasculares , Factores de Crecimiento Transformadores , Factor de Crecimiento Transformador beta1
16.
Chinese journal of integrative medicine ; (12): 932-940, 2023.
Artículo en Inglés | WPRIM | ID: wpr-1010301

RESUMEN

OBJECTIVE@#To explore the protective effect of bloodletting acupuncture at twelve Jing-well points on hand (BAJP) on acute hypobaric hypoxia (AHH)-induced brain injury in rats and its possible mechanisms.@*METHODS@#Seventy-five Sprague Dawley rats were divided into 5 groups by a random number table (n=15), including control, model, BAJP, BAJP+3-methyladenine (3-MA), and bloodletting acupuncture at non-acupoint (BANA, tail tip blooding) groups. After 7-day pre-treatment, AHH models were established using hypobaric oxygen chambers. The levels of S100B, glial fibrillary acidic protein (GFAP), superoxide dismutase (SOD), and malondialdehyde (MDA) in serum were measured by enzyme-linked immunosorbent assay. Hematoxylin-eosin staining and the terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling method were used to assess hippocampal histopathology and apoptosis. Transmission electron microscopy assay was used to observe mitochondrial damage and autophagosomes in hippocampal tissues. Flow cytometry was used to detect mitochondrial membrane potential (MMP). The mitochondrial respiratory chain complexes I, III and IV activities and ATPase in hippocampal tissue were evaluated, respectively. Western blot analysis was used to detect the protein expressions of Beclin1, autophagy protein 5 (ATG5), microtubule-associated protein 1 light chain 3 beta (LC3B), phosphatase and tensin homolog induced kinase 1 (PINK1), and Parkin in hippocampal tissues. The mRNA expressions of Beclin1, ATG5 and LC3-II were analyzed by quantitative real-time polymerase chain reaction.@*RESULTS@#BAJP treatment reduced hippocampal tissue injury and inhibited hippocampal cell apoptosis in AHH rats. BAJP reduced oxidative stress by decreasing S100B, GFAP and MDA levels and increasing SOD level in the serum of AHH rats (P<0.05 or P<0.01). Then, BAJP increased MMP, the mitochondrial respiratory chain complexes I, III and IV activities, and the mitochondrial ATPase activity in AHH rats (all P<0.01). BAJP improved mitochondrial swelling and increased the autophagosome number in hippocampal tissue of AHH rats. Moreover, BAJP treatment increased the protein and mRNA expressions of Beclin1 and ATG5 and LC3-II/LC3-I ratio in AHH rats (all P<0.01) and activated the PINK1/Parkin pathway (P<0.01). Finally, 3-MA attenuated the therapeutic effect of BAJP on AHH rats (P<0.05 or P<0.01).@*CONCLUSION@#BAJP was an effective treatment for AHH-induced brain injury, and the mechanism might be through reducing hippocampal tissue injury via increasing the PINK1/Parkin pathway and enhancement of mitochondrial autophagy.

17.
Journal of Geriatric Cardiology ; (12): 779-787, 2023.
Artículo en Inglés | WPRIM | ID: wpr-1010209

RESUMEN

BACKGROUND@#The benefits of healthy lifestyles are well recognized. However, the extent to which improving unhealthy lifestyles reduces cardiovascular disease (CVD) risk needs to be discussed. We evaluated the impact of lifestyle improvement on CVD incidence using data from the China-PAR project (Prediction for Atherosclerotic Cardiovascular Disease Risk in China).@*METHODS@#A total of 12,588 participants free of CVD were followed up for three visits after the baseline examination. Changes in four lifestyle factors (LFs) (smoking, diet, physical activity, and alcohol consumption) were assessed through questionnaires from the baseline to the first follow-up visit. Cox proportional hazard models were used to estimate hazard ratios (HRs) and corresponding 95% confidence intervals (CIs). The risk advancement periods (RAPs: the age difference between exposed and unexposed participants reaching the same incident CVD risk) and population-attributable risk percentage (PAR%) were also calculated.@*RESULTS@#A total of 909 incident CVD cases occurred over a median follow-up of 11.14 years. Compared with maintaining 0-1 healthy LFs, maintaining 3-4 healthy LFs was associated with a 40% risk reduction of incident CVD (HR = 0.60, 95% CI: 0.45-0.79) and delayed CVD risk by 6.31 years (RAP: -6.31 [-9.92, -2.70] years). The PAR% of maintaining 3-4 unhealthy LFs was 22.0% compared to maintaining 0-1 unhealthy LFs. Besides, compared with maintaining two healthy LFs, improving healthy LFs from 2 to 3-4 was associated with a 23% lower risk of CVD (HR = 0.77, 95% CI: 0.60-0.98).@*CONCLUSIONS@#Long-term sustenance of healthy lifestyles or improving unhealthy lifestyles can reduce and delay CVD risk.

18.
Journal of Geriatric Cardiology ; (12): 586-595, 2023.
Artículo en Inglés | WPRIM | ID: wpr-1010183

RESUMEN

OBJECTIVE@#To investigate the optimal duration of dual antiplatelet therapy (DAPT) in patients with diabetes mellitus (DM) requiring complex percutaneous coronary intervention (PCI).@*METHODS@#A total of 2403 patients with DM who underwent complex PCI from January to December 2013 were consecutively enrolled in this observational cohort study and divided according to DAPT duration into a standard group (11-13 months, n = 689) and two prolonged groups (13-24 months, n = 1133; > 24 months, n = 581).@*RESULTS@#Baseline characteristics, angiographic findings, and complexity of PCI were comparable regardless of DAPT duration. The incidence of major adverse cardiac and cerebrovascular event was lower when DAPT was 13-24 months than when it was 11-13 months or > 24 months (4.6% vs. 8.1% vs. 6.0%, P = 0.008), as was the incidence of all-cause death (1.9% vs. 4.6% vs. 2.2%, P = 0.002) and cardiac death (1.0% vs. 3.0% vs. 1.2%, P = 0.002). After adjustment for confounders, DAPT for 13-24 months was associated with a lower risk of major adverse cardiac and cerebrovascular event [hazard ratio (HR) = 0.544, 95% CI: 0.373-0.795] and all-cause death (HR = 0.605, 95% CI: 0.387-0.944). DAPT for > 24 months was associated with a lower risk of all-cause death (HR = 0.681, 95% CI: 0.493-0.942) and cardiac death (HR = 0.620, 95% CI: 0.403-0.952). The risk of major bleeding was not increased by prolonging DAPT to 13-24 months (HR = 1.356, 95% CI: 0.766-2.401) or > 24 months (HR = 0.967, 95% CI: 0.682-1.371).@*CONCLUSIONS@#For patients with DM undergoing complex PCI, prolonging DAPT might improve the long-term prognosis by reducing the risk of adverse ischemic events without increasing the bleeding risk.

19.
China Journal of Chinese Materia Medica ; (24): 4789-4797, 2023.
Artículo en Chino | WPRIM | ID: wpr-1008646

RESUMEN

This study aims to objectively and quantitatively analyze the research status and hot spots of Chuanxiong Rhizoma and provide guidance for further research and clinical application of this herbal medicine. Firstly, the research articles involving Chuanxiong Rhizoma from 2010 to 2023 were retrieved from seven databases including Web of Science, PubMed, Medline, CNKI, VIP, Wanfang, and SinoMed. Then, NoteExpress and manual reading were employed to complete the de-duplication and screening of the articles, and the annual number of publications and journals was analyzed. Finally, CiteSpace was used for systematic analysis of the research institutions, authors, and keywords, and the corresponding knowledge maps were established. After screening, 1 137 articles in Chinese and 433 articles in English were included, and the annual number of publications showed an increasing trend. Chinese Journal of Experimental Traditional Medical Formulae and Journal of Ethnopharmacology were the top Chinese and English journal in the number of publications. Chengdu University of Traditional Chinese Medicine and Nanjing University of Chinese Medicine published the most articles in Chinese and English, respectively. PENG Cheng and FENG Yi were the authors published more articles in Chinese and English. Ferulic acid, signaling pathway, mechanism, headache, ligustrazine, and apoptosis were frequent keywords. A total of 20 clusters and 30 bursts were generated. The comprehensive analysis showed that the research trends and hot spots in this field mainly focused on pharmacological components and isolation, pharmacological effects and mechanism, clinical application and efficacy, compatibility and efficacy of drug pairs, quality evaluation and control, and cultivation and germplasm improvement.


Asunto(s)
Medicina Tradicional China , Medicamentos Herbarios Chinos/uso terapéutico , Rizoma , Publicaciones , Medicina
20.
Acta Pharmaceutica Sinica ; (12): 2424-2433, 2023.
Artículo en Chino | WPRIM | ID: wpr-999144

RESUMEN

Gouty arthritis is a type of metabolic rheumatic disease caused by autoimmune abnormalities. Currently, the use of Western medicine in the clinical treatment of gouty arthritis has been associated with a high risk of adverse reactions. Therefore, there is a growing interest in exploring therapeutic drugs from traditional Chinese medicine as a potential alternative. According to the theory of traditional Chinese medicine, gouty arthritis has been classified as damp-heat arthralgia syndrome. Shirebi granules has been found to have good clinical efficacy in treating gouty arthritis. However, its underlying pharmacological mechanisms remain unclear. To address this problem, the study first established the interaction network of candidate targets for Shirebi granules, which is used to treat damp-heat syndrome of gouty arthritis. Then, the key candidate targets of Shirebi granules for treating gouty arthritis with damp-heat syndrome were screened by calculating the topological features of the network nodes. Then, the functional mining of the key candidate targets revealed that the candidate targets of Shirebi granules may intervene in the biological process of inflammatory response and lipid metabolism through the crosstalk of Wnt/β-catenin signaling. To verify the effectiveness of Shirebi granules in treating gouty arthritis with damp-heat syndrome, a rat model was established. The results demonstrated that the granules significantly improved the severity of arthritis in rats with this condition, reduced joint inflammation, gait score, swelling index, increased mechanical pain threshold (P < 0.05), and reduced the content of serum inflammatory factors IL-1β, IL-6, and TNF-α in gouty arthritis rats with damp-heat syndrome (P < 0.01) gouty. It was also found that Shirebi granules effectively alleviated the symptoms of dampness heat syndrome such as local joint fever and dry mouth by reducing the temperature of the joints in acute gouty arthritis with damp-heat syndrome (AD) rats, increasing the threshold of heat pain, increasing water intake (P < 0.01), and inhibiting abnormal changes in the content of fatty acid oxidation related enzymes (P < 0.01). Western blot analysis showed that Shirebi granules increased the protein expression levels of Wnt and β-catenin (P < 0.01) while decreasing the protein expression of p65, p-p65 and PPARγ (P < 0.01) in rats with gouty arthritis and damp-heat syndrome. The results showed that Shirebi granules may reverse the "inflammation-immune" imbalance and lipid metabolism disorder by regulating the crosstalk of Wnt/β-catenin signaling, and play a role in alleviating the severity of the disease. This study provides a methodological reference for elucidating the pharmacological mechanisms of traditional Chinese medicine formulas. It also presents research ideas for the appropriate clinical use of Chinese patent medicines and the development of new clinical drugs for gouty arthritis therapy. The animal welfare and experiment procedures of this study were performed in accordance with the regulations of the Experimental Animal Ethics Committee of Experimental Research Center, China Academy of Chinese Medical Sciences (grant No. ERCCACMS11-2302-08).

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA