Bibliometric analysis and visual atlas of mercury-containing Chinese medicine:Hongfen(hydrargyrum oxydatum crudum)

Objectives In order to provide theoretical support for clinical standardization and promotion of the use of Hongfen(hydrargyrum oxydatum crudum),a mercury-containing Chinese medicine,as well as to make it easier to apply traditional Chinese topical preparations in a more contemporary manner.Methods We screened the topical research literature on Hongfen.Firstly,we analyzed the current research status of Hongfen statistically in terms of disciplinary distribution,research institutions,funding,publication volume,research types,and research focus of the literature;secondly,we analyzed the research status of Hongfen by MeSH term analysis,abstract and combined with the herbal literature,the indications,usage,dosage,and adverse effects of Hongfen were statistically analyzed,and keyword co-occurrence analysis and data visualization were performed using python+pyecharts.Results Early studies on Hongfen were mainly on the evaluation of the formulation process,while the current studies are mainly focused on clinical effectiveness and safety,with a considerable part of the studies also focused on drug toxicology,metabolism of mercury components target organ toxicity studies,while the basic studies on its mechanism of action are less.The clinical application is mainly focused on chronic ulcerated sores,refractory sinus fistula,and other surgical sore diseases,the use of which is mostly in the form of compounding and adding excipients,the use of which requires consideration of the accumulation of drug toxicity and attention to drug dosage and duration of use in order to reduce the occurrence of clinical side effects.Conclusion Hongfen is a type of mineral medicine that is extremely toxic but has a known curative effect.Its clinical use is low-risk,and its advantages greatly outweigh its drawbacks.Molecular biology technology should be actively carried out to analyze the pharmacological mechanism of Hongfen,which will play a positive role in the transmission and promotion of traditional Chinese medicine topical preparations.

The mechanism of Jiuyi powder and its effective components in inhibiting the M1 phenotype polarization of macrophages on chronic and refractory wounds infected by MRSA

Objective:To observe the effect of Jiuyi powder and its active components on the bacterial culture and macrophage phenotypic factors of the chronic refractory wound rat model,and to explore its mechanism of removing decay and promoting muscle growth.Methods:SD rats were divided into control group,Jiuyi powder group,Shengdan group,and calcined gypsum group,with 8 rats in each group.MRSA-infected skin lesions and wounds were used to build a model of chronic and difficult-to-heal wounds in rats.After the model was formed,the control group was treated with daily routine nitrofural disinfection and replaced with sterile gauze.On the basis of the control group,quantitative Jiuyi powder,Shengdan powder,and calcined gypsum powder were used for dressing change,once a day for 7 consecutive days.Before and after the last administration,collect rat wound secretions for bacterial culture,inducible monoxide nitrogen synthase content.At the same time,after the last administration,the rat wound tissue was excised for histopathology and immunofluorescence double staining to label macrophages and their M1 phenotype.Results:After the last dressing change,the wound healing of Jiuyi powder group was better than the other groups,and the wound healing rate of each group had significant difference(P<0.05).The histomology showed that the inflammation of Jiuyi powder group was controlled and had a healing trend.After the last drug change,the contents of TNF-α,IL-6 and iNOS in serum of all groups decreased,and the contents of IL-6,TNF-αand iNOS in serum of Jiuyi powder group decreased significantly before and after medication(P<0.05).There was statistical significance in serum IL-6 content between calcined gypsum group and Shengdan group before and after medication(P<0.05).In addition,the results showed that the contents of IL-6 and iNOS in serum of Jiuyi powder group were statistically different from those of the control group(P<0.05).Tissue immunofluorescence double staining showed that the positive rate of M1 macrophages in Jiuyi powder group and Shengdan group was significantly lower than that in control group(P<0.05).The MRSA negative conversion rate of Jiuyi powder group and Shengdan group was better than that of the control group and calcined gypsum group(P<0.05).Conclusion:Jiuyi powder can improve the inflammation of chronic refractory wounds,and has antibacterial,anti-corrosion and myogenic effects.Its mechanism may be related to the inhibition of macrophage M1 phenotype polarization.

Advances in the study of macrophages in wound healing

Macrophages are a group of immune cells with highly heterogeneous phenotypes and functions,which run through the whole process of tissue repair.Macrophages are distributed in various organs and tissues of the body,which are a kind of cell population with plasticity and high heterogeneity in the functional state.Under various conditions,it can be transformed into M1-type(classically activated macrophage)and M2-type macrophages(alternatively activated macrophage).It was also found that the phenotypic polarization of macrophages was regulated by a variety of conditions.This review summarizes the existing studies on the effect of macrophage subtypes on wound repair and the mechanism of regulating macrophage phenotype polarization,so as to provide theoretical basis for further studies.