Role of ferroptosis in Parkinson’s disease and intervention mechanism of acupuncture and moxibustion

Parkinson’s disease(PD)is the second neurodegenerative disease in the world.The pathological characteristics of PD are degeneration,loss and death of dopaminergic neurons in the substantia nigra of the midbrain.At present,most scholars believe that the main pathogenesis of PD is α-synuclein aggregation,oxidative stress,mitochondrial dysfunction and neuroinflammatory reaction.More and more studies have demonstrated that ferroptosis plays an important role in the occurrence and development of PD.Ferroptosis is a new type of cell death that is significantly different from traditional apoptosis,scorching and necrosis.Its main feature is iron-dependent lipid peroxidation.Some studies have found that the efficacy of acupuncture and moxibustion in the treatment of PD may be related to the regulation of ferroptosis.Therefore,this study mainly discusses the occurrence and development mechanism of ferroptosis and its role in PD,and the possible mechanism of acupuncture and moxibustion in the treatment of PD dopaminergic neurons,so as to provide theoretical basis for acupuncture and moxibustion in the treatment of PD.

Network pharmacology to predicting therapy targets of traditional Chinese medicine Kang’ai injection on breast cancer

Background:To predict the effective targets of Kang’ai injection and analyze the pharmacological mechanism for the treatment of breast cancer based on the method of network pharmacology.Methods:The Traditional Chinese Medicine Systems Pharmacology database was used to predict the effective components of the Chinese patent medicine Kang’ai injection,and GeneCards database,Online Mendelian Inheritance in Man database and the Therapeutic Target Database were used to predict the therapeutic targets of breast cancer.Cytoscape 3.7.2 was used to construct active ingredient-disease-target network.String database and Cytoscape 3.7.2 software were used to draw the protein-protein interaction network and obtain the core target.Bioconductor and R language were used to analyze the effective action target for gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis.Results:There were 42 effective active ingredients in the Chinese patent medicine Kang’ai injection,which acted on 105 targets,and it had 32 components that acted on 96 targets associated with breast cancer.The target regulates various biological processes such as inflammation,angiogenesis,apoptosis and cell proliferation,and regulates pathways such as PI3K-Akt signaling pathway,MAPK signaling pathway,AGE-RAGE signaling pathway in diabetic complications and thyroid hormone signaling pathway through gene ontology and Kyoto Encyclopedia of Genes and Genomes analysis.Conclusion:The treatment of breast cancer with the Chinese patent medicine Kang’ai injection is a complex mechanism process with multiple targets,multiple pathways,and multiple choices,which provides a theoretical basis for the further extraction of effective components in the treatment of breast cancer.

“Buyi Ganshen”,a traditional Chinese medicine treatment,combined with dopa preparation for Parkinson’s disease therapy:a meta-analysis of randomized controlled trials

Traditional Chinese medicine Buyi Ganshen therapy combined with dopa preparation in the therapy of Parkinson’s disease could enhance the clinical safety and efficacy compared with dopa preparation along.The exact mechanism of how Buyi Ganshen works combined with dopa preparation still unknown and the enrolled articles quality was relatively inadequate,yet it could provide the reference in the clinical application and further studies.Background:To research the influence of“Buyi Ganshen”,a traditional Chinese medicine that commonly used in“Tonifying the Liver and the Kidney”,added dopa preparation for the therapy of Parkinson’s disease.Methods:This meta-analysis examined existing literature by searching 7 electronic databases(CNKI,WanFang,EMBASE,PubMed,Medline,the Cochrane Library,and the VIP database)from inception to December 2019.Randomized controlled trials evaluating the influence of“Buyi Ganshen”combined with dopa preparation for Parkinson’s disease were identified.The main results were clinical efficacy,UPDRS I(mental score),total unified Parkinson’s disease ratingscale score,UPDRS III(motor score),UPDRS II(activities of daily life),and UPDRS IV(complications of treatment).The subordinate results were the SPOCA-AUT scores,traditional Chinese medicine syndromes and other adverse reactions.The Review Manager 5.3 software was used to calculate the pooled estimate effect.The outcomes were showed as relative ratio with 95%confidence interval.The fixed or random model was elected based on the level of homogeneity among researches.The I2 was used to detected heterogeneity.The quality of the researches was also assessed.Results:The meta-analysis include 2,241 individuals from a total of 30 studies.These data suggested that the therapy of Parkinson’s disease with the combination of“Buyi Ganshen”and dopa preparation were more effective compared to dopa preparation alone.Conclusion:“Buyi Ganshen”combined with dopa preparation exists,in some degree,to enhance clinical safety and effectiveness in the cure of Parkinson’s disease,compared with dopa preparation along.As most of the studies included were with low quality,this conclusion must be considered with caution.Thus,more multi-center,high-quality,prospective randomized controlled trials with large enough sample sizes are required to further illuminate the influence of“Buyi Ganshen”combined with dopa preparation for Parkinson’s disease.

MicroRNA-155 as a potential biomarker for breast cancer screening: a systematic review and meta-analysis

Background:It is aimed to evaluate the clinical significance of miR-155 on diagnosing human breast cancer.Methods:Eligible studies were identified through multiple search strategies.The search was updated up until April 10,2020.Fagan’s nomogram,publication bias,meta-regression,sensitive analysis,area under the summary receiver operating characteristic(AUC),diagnostic odds ratio as well as pooled sensitivity and specificity were utilized to assess the capacity of miR-155 for diagnosis.The meta-analysis was conducted and the origin of the heterogenic property was investigated by Stata SE 12.0 and Meta-Disc software.Results:The meta-analysis contained 9 articles totally with the AUC,diagnostic odds ratio,specificity,pooled sensitivity of 0.90(95%CI,0.88–0.93),28.63(95%CI,11.22–73.04),0.82(95%CI,0.72–0.89)and 0.86(95%CI,0.76–0.93)separately.The negative and positive likelihood ratios were 0.14 and 5.Moreover,the heterogeneity was apparent but resulted from neither sensitivity analyses nor threshold effect.Conclusion:The evidence from this study indicates that miR-155 exhibits satisfactory performance on diagnosis for breast cancer.