Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 33
Filtrar
1.
Cereb Cortex ; 34(4)2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38642107

RESUMO

Glioma is a systemic disease that can induce micro and macro alternations of whole brain. Isocitrate dehydrogenase and vascular endothelial growth factor are proven prognostic markers and antiangiogenic therapy targets in glioma. The aim of this study was to determine the ability of whole brain morphologic features and radiomics to predict isocitrate dehydrogenase status and vascular endothelial growth factor expression levels. This study recruited 80 glioma patients with isocitrate dehydrogenase wildtype and high vascular endothelial growth factor expression levels, and 102 patients with isocitrate dehydrogenase mutation and low vascular endothelial growth factor expression levels. Virtual brain grafting, combined with Freesurfer, was used to compute morphologic features including cortical thickness, LGI, and subcortical volume in glioma patient. Radiomics features were extracted from multiregional tumor. Pycaret was used to construct the machine learning pipeline. Among the radiomics models, the whole tumor model achieved the best performance (accuracy 0.80, Area Under the Curve 0.86), while, after incorporating whole brain morphologic features, the model had a superior predictive performance (accuracy 0.82, Area Under the Curve 0.88). The features contributed most in predicting model including the right caudate volume, left middle temporal cortical thickness, first-order statistics, shape, and gray-level cooccurrence matrix. Pycaret, based on morphologic features, combined with radiomics, yielded highest accuracy in predicting isocitrate dehydrogenase mutation and vascular endothelial growth factor levels, indicating that morphologic abnormalities induced by glioma were associated with tumor biology.


Assuntos
Neoplasias Encefálicas , Glioma , Humanos , Fator A de Crescimento do Endotélio Vascular/genética , Neoplasias Encefálicas/diagnóstico por imagem , Neoplasias Encefálicas/genética , Isocitrato Desidrogenase/genética , Imageamento por Ressonância Magnética , Glioma/diagnóstico por imagem , Glioma/genética , Encéfalo/diagnóstico por imagem , Encéfalo/patologia , Mutação , Estudos Retrospectivos
2.
Cereb Cortex ; 34(1)2024 01 14.
Artigo em Inglês | MEDLINE | ID: mdl-38112602

RESUMO

Systemic infiltration is a hallmark of diffuse midline glioma pathogenesis, which can trigger distant disturbances in cortical structure. However, the existence and effects of these changes have been underexamined. This study aimed to investigate whole-brain cortical myelin and thickness alternations induced by diffuse midline glioma. High-resolution T1- and T2-weighted images were acquired from 90 patients with diffuse midline glioma with H3 K27-altered and 64 patients with wild-type and 86 healthy controls. Cortical thickness and myelin content was calculated using Human Connectome Project pipeline. Significant differences in cortical thickness and myelin content were detected among groups. Short-term survival prediction model was constructed using automated machine learning. Compared with healthy controls, diffuse midline glioma with H3 K27-altered patients showed significantly reduced cortical myelin in bilateral precentral gyrus, postcentral gyrus, insular, parahippocampal gyrus, fusiform gyrus, and cingulate gyrus, whereas diffuse midline glioma with H3 K27 wild-type patients exhibited well-preserved myelin content. Furtherly, when comparing diffuse midline glioma with H3 K27-altered and diffuse midline glioma with H3 K27 wild-type, the decreased cortical thickness in parietal and occipital regions along with demyelination in medial orbitofrontal cortex was observed in diffuse midline glioma with H3 K27-altered. Notably, a combination of cortical features and tumor radiomics allowed short-term survival prediction with accuracy 0.80 and AUC 0.84. These findings may aid clinicians in tailoring therapeutic approaches based on cortical characteristics, potentially enhancing the efficacy of current and future treatment modalities.


Assuntos
Neoplasias Encefálicas , Glioma , Humanos , Neoplasias Encefálicas/diagnóstico por imagem , Histonas/genética , Glioma/diagnóstico por imagem , Bainha de Mielina , Encéfalo/patologia , Mutação
3.
Zhongguo Zhong Yao Za Zhi ; 49(13): 3414-3420, 2024 Jul.
Artigo em Zh | MEDLINE | ID: mdl-39041113

RESUMO

Based on the systematic deconstruction of multi-dimensional and multi-target biological networks, modular pharmacology explains the complex mechanism of diseases and the interactions of multi-target drugs. It has made progress in the fields of pathogenesis of disease, biological basis of disease and traditional Chinese medicine(TCM) syndrome, pharmacological mechanism of multi-target herbs, compatibility of formulas, and discovery of new drug of TCM compound. However, the complexity of multi-omics data and biological networks brings challenges to the modular deconstruction and analysis of the drug networks. Here, we constructed the "Computing Platform for Modular Pharmacology" online analysis system, which can implement the function of network construction, module identification, module discriminant analysis, hub-module analysis, intra-module and inter-module relationship analysis, and topological visualization of network based on quantitative expression profiles and protein-protein interaction(PPI) data. This tool provides a powerful tool for the research on complex diseases and multi-target drug mechanisms by means of modular pharmacology. The platform may have broad range of application in disease modular identification and correlation mechanism, interpretation of scientific principles of TCM, analysis of complex mechanisms of TCM and formulas, and discovery of multi-target drugs.


Assuntos
Medicamentos de Ervas Chinesas , Medicina Tradicional Chinesa , Humanos , Biologia Computacional/métodos , Medicamentos de Ervas Chinesas/farmacologia , Medicamentos de Ervas Chinesas/química , Farmacologia/métodos , Mapas de Interação de Proteínas/efeitos dos fármacos
4.
J Clin Nurs ; 32(13-14): 3995-4008, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36081318

RESUMO

AIMS AND OBJECTIVES: To investigate the support needs identified by Taiwanese breast cancer diagnosed mothers for themselves and their 6-12-year-old children for implementation in a support group. BACKGROUND: Mothers with dependent children are burdened with diverse child-centered concerns while battling breast cancer. A better understanding of the concomitant support needs of mothers and their children can yield tailored support for ill mothers and their children. DESIGN: A qualitative descriptive study employing content analysis of collected data. METHODS: Between February and June of 2020, semi-structured individual interviews were conducted with 20 mothers who had been diagnosed with breast cancer in the last 2 years. Qualitative content analysis was used. This study followed the COREQ guidelines. RESULTS: Ill mothers favoured a hybrid format for support groups, consisting of mother-only, child-only, and mother-child group sessions. The content analysis yielded four themes for mother-only group sessions: (1) learning to reach out to children; (2) dealing with negative emotions; (3) how to say goodbye to children; and (4) resetting for the future. Three themes related to child-only group sessions emerged: (1) emotional and health education; (2) getting along with a sick mother; and (3) preparing for uncertainty. The core theme for mother-child group sessions was relationship enhancement. CONCLUSION: The findings revealed that mother-reported support needs of ill mothers and their children included support for improving children's emotional well-being and mothers' emotional coping, preparing for uncertainty, and promoting intimacy in the mother-child relationship. RELEVANCE TO CLINICAL PRACTICE: A relation-focused approach to psychosocial support group development that allows mother-child mutual influences on each other's coping to be addressed bilaterally is suggested. PATIENT OR PUBLIC CONTRIBUTION: Mothers diagnosed with breast cancer were interviewed for data collection and invited to review and validate the synthesised data for enhancing the credibility of the study.


Assuntos
Neoplasias da Mama , Mães , Feminino , Humanos , Criança , Mães/psicologia , Neoplasias da Mama/psicologia , Adaptação Psicológica , Emoções , Relações Mãe-Filho
5.
Mol Med ; 28(1): 140, 2022 11 26.
Artigo em Inglês | MEDLINE | ID: mdl-36435742

RESUMO

BACKGROUND: Analyzing disease-disease relationships plays an important role for understanding etiology, disease classification, and drug repositioning. However, as cardiovascular diseases with causative links, the molecular relationship among stable angina pectoris (SAP), ischemic cardiomyopathy (ICM) and chronic heart failure (CHF) is not clear. METHODS: In this study, by integrating the multi-database data, we constructed paired disease progression modules (PDPMs) to identified relationship among SAP, ICM and CHF based on module reconstruction pairs (MRPs) of K-value calculation (a Euclidean distance optimization by integrating module topology parameters and their weights) methods. Finally, enrichment analysis, literature validation and structural variation (SV) were performed to verify the relationship between the three diseases in PDPMs. RESULTS: Total 16 PDPMs were found with K > 0.3777 among SAP, ICM and CHF, in which 6 pairs in SAP-ICM, 5 pairs for both ICM-CHF and SAP-CHF. SAP-ICM was the most closely related by having the smallest average K-value (K = 0.3899) while the maximum is SAP-CHF (K = 0.4006). According to the function of the validation gene, inflammatory response were through each stage of SAP-ICM-CHF, while SAP-ICM was uniquely involved in fibrosis, and genes were related in affecting the upstream of PI3K-Akt signaling pathway. 4 of the 11 genes (FLT1, KDR, ANGPT2 and PGF) in SAP-ICM-CHF related to angiogenesis in HIF-1 signaling pathway. Furthermore, we identified 62.96% SVs were protein deletion in SAP-ICM-CHF, and 53.85% SVs were defined as protein replication in SAP-ICM, while ICM-CHF genes were mainly affected by protein deletion. CONCLUSION: The PDPMs analysis approach combined with genomic structural variation provides a new avenue for determining target associations contributing to disease progression and reveals that inflammation and angiogenesis may be important links among SAP, ICM and CHF progression.


Assuntos
Angina Estável , Cardiomiopatias , Insuficiência Cardíaca , Isquemia Miocárdica , Humanos , Fosfatidilinositol 3-Quinases , Isquemia Miocárdica/complicações , Isquemia Miocárdica/genética , Insuficiência Cardíaca/metabolismo , Genômica , Doença Crônica , Cardiomiopatias/genética , Progressão da Doença
6.
J Transl Med ; 19(1): 122, 2021 03 23.
Artigo em Inglês | MEDLINE | ID: mdl-33757544

RESUMO

BACKGROUND: Discovering potential predictive risks in the super precarcinomatous phase of hepatocellular carcinoma (HCC) without any clinical manifestations is impossible under normal paradigm but critical to control this complex disease. METHODS: In this study, we utilized a proposed sequential allosteric modules (AMs)-based approach and quantitatively calculated the topological structural variations of these AMs. RESULTS: We found the total of 13 oncogenic allosteric modules (OAMs) among chronic hepatitis B (CHB), cirrhosis and HCC network used SimiNEF. We obtained the 11 highly correlated gene pairs involving 15 genes (r > 0.8, P < 0.001) from the 12 OAMs (the out-of-bag (OOB) classification error rate < 0.5) partial consistent with those in independent clinical microarray data, then a three-gene set (cyp1a2-cyp2c19-il6) was optimized to distinguish HCC from non-tumor liver tissues using random forests with an average area under the curve (AUC) of 0.973. Furthermore, we found significant inhibitory effect on the tumor growth of Bel-7402, Hep 3B and Huh7 cell lines in zebrafish treated with the compounds affected those three genes. CONCLUSIONS: These findings indicated that the sequential AMs-based approach could detect HCC risk in the patients with chronic liver disease and might be applied to any time-dependent risk of cancer.


Assuntos
Carcinoma Hepatocelular , Hepatite B Crônica , Neoplasias Hepáticas , Animais , Carcinoma Hepatocelular/genética , Vírus da Hepatite B , Humanos , Cirrose Hepática , Neoplasias Hepáticas/genética , Peixe-Zebra
7.
Cell Mol Life Sci ; 71(14): 2605-24, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24413666

RESUMO

A biological network exhibits a modular organization. The modular structure dependent on functional module is of great significance in understanding the organization and dynamics of network functions. A huge variety of module identification methods as well as approaches to analyze modularity and dynamics of the inter- and intra-module interactions have emerged recently, but they are facing unexpected challenges in further practical applications. Here, we discuss recent progress in understanding how such a modular network can be deconstructed spatiotemporally. We focus particularly on elucidating how various deciphering mechanisms operate to ensure precise module identification and assembly. In this case, a system-level understanding of the entire mechanism of module construction is within reach, with important implications for reasonable perspectives in both constructing a modular analysis framework and deconstructing different modular hierarchical structures.


Assuntos
Modelos Biológicos , Algoritmos , Biologia de Sistemas/métodos
8.
Zhongguo Zhong Yao Za Zhi ; 40(20): 4112-6, 2015 Oct.
Artigo em Zh | MEDLINE | ID: mdl-27062835

RESUMO

A complex disease is rarely a consequence of abnormality in a single gene. It is known that many drugs exhibit a therapeutic effect by acting on multiple targets, produce synergies to intervene the occurrence and development of diseases. Unlike the traditional methods which act on single molecule or pathway, this disease-drug target network constructed with high throughput data vividly showed the complex relationship between drugs, their targets and diseases. However, the networks are usually extremely complex. In order to reduce the complexity, it is necessary to deconstruct the network and identify module structures. In this study, framework of module analysis was summarized from four aspects: module concept, structure and identification methods, importance of disease-drug module identification, and its application. Module-based analysis provides a new perspective for deciphering the drug intervention mechanisms for complex diseases, and provides new ideas and pathways to reveal the mechanisms of multi-target and multi-component drugs.


Assuntos
Medicamentos de Ervas Chinesas/administração & dosagem , Medicamentos de Ervas Chinesas/química , Terapia de Alvo Molecular , Sistemas de Liberação de Medicamentos , Redes Reguladoras de Genes/efeitos dos fármacos , Humanos
9.
Pain Med ; 15(6): 910-20, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24636695

RESUMO

BACKGROUND: Acupuncture is often used for primary dysmenorrhea. But there is no convincing evidence due to low methodological quality. We aim to assess immediate effect of acupuncture at specific acupoint compared with unrelated acupoint and nonacupoint on primary dysmenorrhea. METHODS: The Acupuncture Analgesia Effect in Primary Dysmenorrhoea-II is a multicenter controlled trial conducted in six large hospitals of China. Patients who met inclusion criteria were randomly assigned to classic acupoint (N = 167), unrelated acupoint (N = 167), or non-acupoint (N = 167) group on a 1:1:1 basis. They received three sessions with electro-acupuncture at a classic acupoint (Sanyinjiao, SP6), or an unrelated acupoint (Xuanzhong, GB39), or nonacupoint location, respectively. The primary outcome was subjective pain as measured by a 100-mm visual analog scale (VAS). Measurements were obtained at 0, 5, 10, 30, and 60 minutes following the first intervention. In addition, patients scored changes of general complaints using Cox retrospective symptom scales (RSS-Cox) and 7-point verbal rating scale (VRS) during three menstrual cycles. Secondary outcomes included VAS score for average pain, pain total time, additional in-bed time, and proportion of participants using analgesics during three menstrual cycles. FINDINGS: Five hundred and one people underwent random assignment. The primary comparison of VAS scores following the first intervention demonstrated that classic acupoint group was more effective both than unrelated acupoint (-4.0 mm, 95% CI -7.1 to -0.9, P = 0.010) and nonacupoint (-4.0 mm, 95% CI -7.0 to -0.9, P = 0.012) groups. However, no significant differences were detected among the three acupuncture groups for RSS-Cox or VRS outcomes. The per-protocol analysis showed similar pattern. No serious adverse events were noted. CONCLUSION: Specific acupoint acupuncture produced a statistically, but not clinically, significant effect compared with unrelated acupoint and nonacupoint acupuncture in primary dysmenorrhea patients. Future studies should focus on effects of multiple points acupuncture on primary dysmenorrhea.


Assuntos
Pontos de Acupuntura , Terapia por Acupuntura/métodos , Dismenorreia/diagnóstico , Dismenorreia/terapia , Manejo da Dor/métodos , Medição da Dor/métodos , Adulto , China/epidemiologia , Dismenorreia/epidemiologia , Feminino , Humanos , Adulto Jovem
10.
Zhongguo Zhong Yao Za Zhi ; 39(16): 3208-10, 2014 Aug.
Artigo em Zh | MEDLINE | ID: mdl-25509318

RESUMO

Drug clinical trial is an important link in the chain of new drug research and development. The results of drug discovery and development directly depend on the extent of standardization of clinical trials. Therefore, improving the quality of drug clinical trials is of great importance, and drug clinical trial institutions play a crucial role in the quality management of drug clinical trials. After years of development, the overall level of drug clinical trials has advanced rapidly in China, and a large number of clinical trials of traditional Chinese medicine have also been carried out. However, there is still a big gap between our country and developed countries. Therefore, for the construction and management of Chinese drug clinical trial institutions, there is still a long way to go. This study aims to analyze the current development of drug clinical trial institutions in China and explore the existing problems from three aspects, including current situations of institutional organization and management, regional and professional distributions, and quality control. And some suggestions are put forward finally, including support of traditional Chinese medicine, introduction of drug-risk management system, and construction of information management.


Assuntos
Ensaios Clínicos como Assunto/normas , Tratamento Farmacológico/normas , Medicamentos de Ervas Chinesas/normas , China , Avaliação de Medicamentos , Tratamento Farmacológico/tendências , Medicamentos de Ervas Chinesas/uso terapêutico , Humanos , Controle de Qualidade , Pesquisa
11.
J Ethnopharmacol ; 328: 118095, 2024 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-38548121

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: The Gu Yan Xiao tincture, a blend of traditional Chinese herbs, is traditionally used for osteoarthritis and related pain. This study investigated its mechanism of action in order to rationalize and validate its therapeutic use. AIM OF THE STUDY: This study analyzed, in a rabbit model of knee osteoarthritis, whether and how Gu Yan Xiao tincture exerts therapeutic benefits by modulating chondrocyte autophagy. MATERIALS AND METHODS: The active constituents within the GYX tincture were identified using liquid chromatography-mass spectrometry. The rabbit model was established by injecting animals with type II collagenase intra-articularly, and the effects of topically applied tincture were examined on osteoarthritis lesions of the knee using histopathology, micro-computed tomography and x-ray imaging. Effects of the tincture were also evaluated on levels of inflammatory cytokines, matrix metalloproteases, and autophagy in chondrocytes. As a positive control, animals were treated with sodium diclofenac. RESULTS: The tincture mitigated the reduction in joint space, hyperplasia of the synovium and matrix metalloproteases in serum that occurred after injection of type II collagenase in rabbits. These therapeutic effects were associated with inhibition of mTOR and activation of autophagy in articular chondrocytes. Inhibiting mTOR with rapamycin potentiated the therapeutic effects of the tincture, while inhibiting autophagy with 3-methyladenine antagonized them. CONCLUSIONS: Gu Yan Xiao tincture mitigates tissue injury in a rabbit model of osteoarthritis, at least in part by inhibiting mTOR and thereby promoting autophagy in chondrocytes. These results rationalize the use of the tincture not only against osteoarthritis but also potentially other diseases involving inhibition of autophagy in bones and joints.


Assuntos
Cartilagem Articular , Osteoartrite do Joelho , Animais , Coelhos , Condrócitos , Microtomografia por Raio-X , Serina-Treonina Quinases TOR , Osteoartrite do Joelho/tratamento farmacológico , Osteoartrite do Joelho/patologia , Metaloproteases/farmacologia , Metaloproteases/uso terapêutico , Autofagia , Colagenases
12.
Zhongguo Zhong Yao Za Zhi ; 38(5): 773-6, 2013 Mar.
Artigo em Zh | MEDLINE | ID: mdl-23724693

RESUMO

A disease is rarely caused by a single virulence gene, but by an imbalanced regulatory network arising from dysfunction of multiple genes or their products. However, drugs intervene the occurrence and development of a disease by acting on multiple target points in the disease network and making a synergy effect on each target point, in order to achieve the therapeutic effect. Unlike traditional approaches focusing on a single molecule or pathway, network analysis with high-throughput data provides a new perspective for studying disease pathobiology and pharmacological mechanisms, and brings forth new ideas for multi-component and multi-target-point pharmacologic mechanisms of traditional Chinese medicines, in three aspects-establishment of relevant disease and drug network, network decomposition, and biological significant of sub-network.


Assuntos
Biologia Computacional/métodos , Doença , Tratamento Farmacológico/métodos , Farmacologia/métodos , Humanos , Medicina Tradicional Chinesa
13.
Diabetes Metab Syndr Obes ; 16: 4065-4080, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38106622

RESUMO

Aim: Liu-Wei-Luo-Bi (LWLB) granules was a Chinese compound prescription for treating diabetic peripheral neuropathy (DPN). The aim of this study was to investigate the effect of LWLB granules on diabetic mice with peripheral neuropathy and to elucidate the potential mechanism based on an untargeted metabolomics approach. Methods: One hundred forty db/db mice were randomly divided into seven groups: the Control group, DPN group, Mudan (MD) granules group, Epalrestat (Epa) group, and the LWLB low, medium, or high dose (LW-l, LW-m, or LW-h) group. After 12 weeks of treatment, body weight, blood glucose, mechanical pain threshold, motor conduction velocity (MCV), sensory conduction velocity (SCV), and Pathological Organization of the Sciatic and Caudal Nerves in mice were measured. Serum samples were collected for untargeted metabolomics analysis using liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) and multivariate statistics. Disease-related pathways were screened out with function enrichment analyses of candidate biomarkers. Results: LWLB granules can improve the peripheral neuropathy of type 2 diabetic mice with peripheral nerve conduction disorders, mainly through significantly improving the nerve conduction velocity (P < 0.05) and lowering the mechanical pain threshold (P < 0.05). A total of 43 metabolites were identified as potential biomarkers related to the therapeutic effect of LWLB granules. Fifty, 4, and 26; 23, 4, and 22; and 24, 1, and 16 biomarkers were discovered in the LW-l, LW-m, and LW-h groups at the 4th, 6th, and 12th weeks, respectively. Five, three, seven, five, and four metabolic pathways were found in MD, Epa, LW-l, LW-m, and LW-h groups, respectively. The arginine biosynthesis pathway is the overlapping pathway in LW-l, LW-m, and LW-h groups. Conclusion: LWLB granules have an obvious neuroprotective effect on diabetic peripheral neuropathy, and the metabolism mechanism of LWLB is mainly related to the arginine biosynthesis pathway on diabetic db/db mice with peripheral neuropathy.

14.
Zhongguo Zhong Yao Za Zhi ; 37(21): 3198-202, 2012 Nov.
Artigo em Zh | MEDLINE | ID: mdl-23397712

RESUMO

As a severe threat to human health, ischemic brain injury has a very complex pathological mechanism involving excitotoxic amino acids, oxygen free radical formation, nitric oxide (NO), Ca2+ overload and inflammation. Traditional Chinese medicine Qingkailing injection have shown good clinical efficacy in the treatment of cerebrovascular disease, and thus it is very significant to studies on its pharmacological mechanism. This essay summarizes relevant studies on pharmacological mechanism of a new compound traditional Chinese medicine Jingzhiqiangkailing (JZQKL) injection in treatment on cerebral ischemia, and explains the pharmacological mechanism of its single effective compounds and their compatibility in treatment of schemic brain injury in the aspects of regulating inflammatory response, neurotrophic factors, vascular protection, blood-brain barrier (BBB) protection and others, and thus providing information for further studies.


Assuntos
Isquemia Encefálica/tratamento farmacológico , Medicamentos de Ervas Chinesas/farmacologia , Animais , Barreira Hematoencefálica/efeitos dos fármacos , Moléculas de Adesão Celular/fisiologia , Citocinas/biossíntese , Medicamentos de Ervas Chinesas/uso terapêutico , Humanos , Injeções , Fatores de Crescimento Neural/fisiologia
15.
Front Psychol ; 13: 1056038, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36562056

RESUMO

With the increasing prominence of resource and environmental issues, countries around the world are paying more and more attention to the concept of sustainable development. Under this concept, China started to implement a pilot project of "National Comprehensive Demonstration City of Energy Saving and Emission Reduction Fiscal Policy" in 2011 to protect resources and environment through green and low-carbon development. This paper aims to investigate whether and how the pilot policy induces corporate green technology innovation. Based on the data on Chinese listed firms from 2008 to 2019 and the relevant theories of economics, management and organizational psychology, we find that the pilot policy can promote corporate green technology innovation. This indicates that the pilot policy, as an external force, will encourage firms to improve their adaptability through green technology innovation which is one type of organizational change, thus improving their organizational effectiveness. The heterogeneity analyses reveal that the promotion effect of the pilot policy on green innovation is stronger among firms in high-carbon industries, firms in the mature stage and firms that are not state-owned. The mechanism tests find that the credit allocation effect and innovation compensation effect generated by the pilot policy are the key channels to promote green technology innovation. In addition to enriching the research on the evaluation of the effects of the pilot policy, our paper also expands the literature on organizational psychology and organizational change from the perspective of corporate green innovation, offers practical implications for the low-carbon transition of manufacturing industries under the emission peak and carbon neutrality targets, and provides insights for other emerging economies to achieve better resource and environmental protection through the energy saving and emission reduction fiscal policy.

16.
J Ethnopharmacol ; 291: 115125, 2022 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-35202715

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Danhong injection (DHI), a traditional Chinese medicine (TCM) injection that has been widely used to treat coronary heart disease and angina pectoris. However, its underlying pharmacological mechanisms have not been fully elucidated. Not all patients benefit from DHI to the same extent. We attempted to explore the characteristics of potential therapeutic targets in different responsive populations. AIM OF THE STUDY: This study aimed to reveal the potential molecular mechanisms of DHI in treating chronic stable angina and identify potential therapeutic targets for DHI. MATERIALS AND METHODS: Based on a previous phase IV clinical trial of DHI in treating chronic stable angina, drug response modules were identified through structural entropy and similarity. Drug response-related genes were screened out based on the correlations between drug response module/module-related genes and clinical features and were assessed using a random forest model. Further validation was conducted using a hypoxia/reoxygenation (H/R) model. RESULTS: Seven DHI-related response modules were identified. Eight drug response-related genes were screened out, and principal component analysis showed that DHI responders were distinguished from responders in the control group based on their expression values. The combination of the two most important genes, SHC4 and PIP5K1P1, discriminated between responders and nonresponders with an area under the receiver operating characteristic curve (AUC) of 0.714; however, no significant difference was found in the AUC between the combination and a single gene. Reverse transcription-polymerase chain reaction showed that middle-dose DHI treatment significantly decreased SHC4 mRNA expression compared with that in the H/R group (P = 0.026), a finding consistent with our previous analysis of differentially expressed genes. CONCLUSIONS: DHI comprehensively exerted a therapeutic effect by acting on multiple response modules related to angina pectoris and drug response-related genes. Our findings indicate that the dimensionality reduction strategy based on the target network-drug response module-therapeutic targets can contribute to revealing the mechanism of action of TCM compounds and guiding precise clinical medication.


Assuntos
Angina Estável , Medicamentos de Ervas Chinesas , Angina Estável/tratamento farmacológico , Angina Estável/genética , Medicamentos de Ervas Chinesas/farmacologia , Medicamentos de Ervas Chinesas/uso terapêutico , Humanos , Injeções , Medicina Tradicional Chinesa
17.
Front Cardiovasc Med ; 9: 813983, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35265682

RESUMO

Combination therapy with increased efficacy and reduced toxicity plays a crucial role in treating complex diseases, such as stroke, but it remains an insurmountable barrier to elucidate the mechanisms of synergistic effects. Here, we present a Driver-induced Modular Screening (DiMS) strategy integrated synergistic module and driver gene identification to elucidate the additive mechanisms of Baicalin (BA) and Jasminoidin (JA) on cerebral ischemia (CI) therapy. Based on anti-ischemia genomic networks BA, JA, and their combination (BJ), we obtained 4, 3, and 9 On-modules of BA, JA, and BJ by modular similarity analysis. Compared with the monotherapy groups, four additive modules (Add-module, BJ_Mod-4, 7, 9, and 13), 15 driver genes of BJ were identified by modular similarity and network control methods, and seven driver proteins (PAQR8, RhoA, EMC10, GGA2, VIPR1, FAM120A, and SEMA3F) were validated by animal experiments. The functional analysis found neuroprotective roles of the Add-modules and driver genes, such as the Neurotrophin signaling pathway and FoxO signaling pathway, which may reflect the additive mechanisms of BJ. Moreover, such a DiMS paradigm provides a new angle to explore the synergistic mechanisms of combination therapy and screen multi-targeted drugs for complex diseases.

18.
Drug Des Devel Ther ; 15: 4053-4069, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34611395

RESUMO

BACKGROUND AND PURPOSE: Two Chinese herbal medicines Huang Qi (HQ, Astragalus mongholicus) and Dan Shen (DS, Salvia miltiorrhiza) are often combined to treat coronary heart disease (CHD). The purpose of this study was to identify the underlying synergistic effects and mechanisms of HQ and DS against CHD. METHODS: The active components and targets of HQ and DS, CHD-related genes, and the biological progression were analysed by network pharmacology. The myocardial infarction (MI) rat model was established by ligating the left anterior descending coronary artery. Cardiac function was detected by ultrasonic electrocardiography. The MI size, fibrosis, cardiac hypertrophy, lipid metabolism, blood viscosity, and coagulation indexes were analysed by histological staining or chemical methods, respectively. RESULTS: A total of 170 shared and specific seed genes of HQ and DS against CHD were identified. The shared and specific biological processes of HQ and DS against CHD were obtained. The LVEF and LVFS values significantly increased, the myocardium infarct size and fibrosis significantly decreased, the values of lipid metabolism indexes and blood viscosity indexes significantly reduced in the HQ + DS treatment group vs HQ or DS single treatment (P < 0.05); the LVEDd, LVEDs, and the CSA values significantly reduced in HQ single and HQ + DS treatment groups vs MI group (P < 0.05); the coagulation index (APTT, PT, TT, and FIB) values decreased significantly in the DS single and HQ + DS treatment groups vs MI group (P < 0.05). CONCLUSION: In MI rats, HQ and DS exhibited synergistic effects on improving cardiac function, reducing MI size, fibrosis, regulating hyperlipidaemia, and maintaining circulatory system homeostasis; HQ had the specific advantage of alleviating cardiac remodelling; DS had the specific advantage of regulating hypercoagulability. This study revealed that HQ and DS not only exerted synergistic effects but also exhibited complementary effects on CHD.


Assuntos
Doença das Coronárias/tratamento farmacológico , Medicamentos de Ervas Chinesas/farmacologia , Infarto do Miocárdio/tratamento farmacológico , Animais , Astragalus propinquus , Modelos Animais de Doenças , Sinergismo Farmacológico , Medicamentos de Ervas Chinesas/administração & dosagem , Masculino , Farmacologia em Rede , Ratos , Ratos Sprague-Dawley , Salvia miltiorrhiza , Volume Sistólico/efeitos dos fármacos , Função Ventricular Esquerda/efeitos dos fármacos
19.
Biomed Pharmacother ; 121: 109655, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31734577

RESUMO

Coronary heart disease (CHD) is a leading cause of death and disability worldwide. Huoxue Anxin Recipe (HAR) is a novel Chinese Herbal Medicine formula of that has been used to treat CHD for several decades. Our previous study found that HAR had anti-oxidative effects, and could promote myocardial angiogenesis and improve cardiac function following myocardial infarction (MI) in rats. However, the active compounds, potential targets, and biological processes related to HAR have not been systematically investigated. Here, network pharmacology and experimental validation were used to study the protective mechanisms of HAR against CHD. We identified 124 active components, 124 verified targets, and 111 predictive targets. A total of 1192 genes related to CHD were identified by cDNA microarray and database analysis. A total of 47 putative targets of HAR against CHD were identified, including 32 verified targets and 15 predictive targets. ClueGo enrichment analysis identified 49 biological processes involved in the anti-CHD effects of HAR. Among them, the negative regulation of blood coagulation and regulation of collagen biosynthetic process were experimentally validated. After constructing a protein-protein interaction network and clustering with MECODE and ClusterONE, 162 key proteins (from ClueGo and clustering) were used to construct an internal interaction network. Complement C3 (C3), Fibrinogen alpha (FGA), Fibrinogen gamma (FGG), interleukin-6 (IL6), and Apolipoprotein A1 (APOA1) were the top 5 hub proteins identified by cytoHubber analysis. HAR limited the concentrations of C3, FGA, FGG, and IL6 and increased APOA1 levels. The results indicated that HAR could down-regulate blood coagulation, regulate collagen biosynthesis, inhibit peroxidation and inflammation injury, and promote cholesterol efflux. HAR could be a potential source of novel and effective drugs for CHD.


Assuntos
Doença das Coronárias/tratamento farmacológico , Medicamentos de Ervas Chinesas/farmacologia , Substâncias Protetoras/farmacologia , Animais , Apolipoproteína A-I/metabolismo , Coagulação Sanguínea/efeitos dos fármacos , Colágeno/metabolismo , Complemento C3/metabolismo , Doença das Coronárias/metabolismo , Regulação para Baixo/efeitos dos fármacos , Fibrinogênio/metabolismo , Inflamação/tratamento farmacológico , Inflamação/metabolismo , Interleucina-16/metabolismo , Masculino , Infarto do Miocárdio/tratamento farmacológico , Infarto do Miocárdio/metabolismo , Miocárdio/metabolismo , Ratos , Ratos Sprague-Dawley
20.
Front Pharmacol ; 10: 1383, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31920636

RESUMO

Studies have shown that combination drug therapy which corresponding treatment involves multiple genes and targets is more effective against cerebral ischemia. To identify the synergistic mechanism of ursodeoxycholic acid and jasminoidin based on differential pathway network, which protect against brain ischemia-reperfusion injury. Totally 115 mice with focal cerebral ischemia-reperfusion injury were allocated into five groups: sham, vehicle, ursodeoxycholic acid (UA), jasminoidin (JA), and JA and UA combination group (JU). The differentially expressed genes identified by microarray which consisted of 11,644 complementary DNAs were loaded to the GeneGo MetaCore™ software to analyze the enriched pathways and processes among different groups. Of the top 10 pathways and process networks, 5, 6, and 3 overlapping pathways as well as 5, 3, and 4 overlapping process networks were observed between UA and JA, UA and JU, and JA and JU, respectively. Of these, three pathways and three process networks overlapped across the three groups. Interestingly, four representative pathways and six process networks were only noted in the JU group. Gene Ontology process analysis showed 2 processes were shared by all three treatment groups in the top 10 processes. The UA and JA combination resulted in synergistic effects through affecting multi-signal transduction pathways, different locations in the same pathway, and the new signaling pathway emerged in drug combination group, those together may enhance the treatment of cerebral ischemia-reperfusion injury through promoting neural cell apoptosis, decreasing calcium levels, inhibiting inflammation, and protecting neurons.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA