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1.
Zhongguo Zhong Yao Za Zhi ; 49(16): 4266-4272, 2024 Aug.
Artigo em Chinês | MEDLINE | ID: mdl-39307762

RESUMO

The group standard Guidelines for construction of traditional Chinese medicine(TCM) pharmacovigilance system in medical institutions, managed by Chinese Association of Chinese Medicine and led by the Institute of Basic Research in Clinical Medicine,China Academy of Chinese Medical Sciences and Dongfang Hospital of Beijing University of Chinese Medicine, was announced on National Group Standard Information Platform on January 16, 2024, with the standard number T/CACM 1563. 2-2024. According to EU pharmacovigilance regulations and the second-level guidance principles of International Council for Harmonization of Technical Requirements for Pharmaceuticals for Human Use(ICH), the unique characteristics of TCM were fully considered, and the relevant systems and procedures for constructing TCM pharmacovigilance systems in medical institutions were clearly defined. This included establishing TCM pharmacovigilance information platforms, arranging staff, formulating various regulations, and monitoring adverse reactions of TCM(including TCM decoction pieces, granules, Chinese patent medicines, in-hospital preparations, and pre-marketed Chinese patent medicines). It aimed to develop a TCM pharmacovigilance system in medical institutions that was tailored to the characteristics of TCM. The system could be appropriately adjusted according to the scope of practice and actual circumstances of medical institutions at different levels. This will enhance the implementation of TCM pharmacovigilance work and safeguard medication safety. The group standard underwent multiple rounds of consultations with internal and external experts and has ultimately evolved into a guiding document applicable to medical institutions and related entities engaged in pharmacovigilance activities.


Assuntos
Medicamentos de Ervas Chinesas , Medicina Tradicional Chinesa , Farmacovigilância , Humanos , Medicina Tradicional Chinesa/normas , Medicamentos de Ervas Chinesas/normas , China , Sistemas de Notificação de Reações Adversas a Medicamentos/normas , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/prevenção & controle
2.
Zhongguo Zhong Yao Za Zhi ; 49(16): 4273-4278, 2024 Aug.
Artigo em Chinês | MEDLINE | ID: mdl-39307763

RESUMO

Oral Chinese patent medicine is the essence of effective prescriptions created and summarized by Chinese medical scientists through thousands of years of medical practice. It is portable and convenient, with an obvious curative effect and other characteristics. However, at present, oral Chinese patent medicine is rich in dosage forms, various in types, complex in mechanism of action, and broad in clinical positioning. In clinical application, there are often cases of drug use without reference to instructions,repeated drug use, and prolonged drug use, which highlights safety problems such as adverse reactions and hepatorenal toxicity. Oral Chinese patent medicine pharmacovigilance is facing challenges. World Health Organization(WHO) has issued the WHO guidelines on safety monitoring of herbal medicines in pharmacovigilance systems, and International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use(ICH) has issued the ICH E2 pharmacovigilance guidelines. The United States has issued the Pharmacovigilance management standards and pharmacoepidemiological assessment guidelines, and the European Union has issued the Guidelines on good pharmacovigilance practices. Japan, South Korea, and other countries in the Asia Pacific region have established their own pharmacovigilance systems, but currently, there are no pharmacovigilance guidelines related to oral Chinese patent medicine in China. Therefore, experts from many disciplines and fields in China were invited to jointly develop the Pharmacovigilance guidelines for clinical application of oral Chinese patent medicines, which aims to develop pharmacovigilance guidelines for clinical application that are consistent with China's national conditions and highlight the characteristics of oral Chinese patent medicine, and provide guidance for clinically safe and rational drug application in medical institutions.


Assuntos
Medicamentos de Ervas Chinesas , Farmacovigilância , Humanos , Medicamentos de Ervas Chinesas/efeitos adversos , Medicamentos de Ervas Chinesas/normas , Medicamentos sem Prescrição/efeitos adversos , Administração Oral , Medicina Tradicional Chinesa/normas , China , Guias como Assunto
3.
Zhongguo Zhong Yao Za Zhi ; 49(16): 4285-4290, 2024 Aug.
Artigo em Chinês | MEDLINE | ID: mdl-39307765

RESUMO

There are many kinds and dosage forms of Chinese patent medicines for external use on the market, which are widely used in clinical departments. The common adverse reactions of Chinese patent medicines for external use are skin reactions, and those for the rare severe diseases include palpitation, chest tightness, dyspnea, and anaphylactic shock. At present, World Health Organization(WHO), International Council for Harmonization of Technical Requirements for Pharmaceuticals for Human Use(ICH),the United States, the European Union, and Asia-Pacific countries(such as Japan and South Korea) have not issued any pharmacovigilance guideline of Chinese patent medicines for external use. China has not issued any pharmacovigilance guideline for these medicines, only releasing the standard Evaluation of skin adverse reactions caused by Chinese patent medicines for external use(T/CACM 005-2017). To standardize the safe and reasonable use of Chinese patent medicines for external use, Pharmacovigilance guidelines for clinical application of Chinese patent medicines for external use was developed with the joint efforts of experts in diverse disciplines. The guideline provides guidance on the monitoring and reporting of adverse reactions/events, identification and assessment of risk signals, and risk control measures in the clinical application of Chinese patent medicines for external use to guide the rational use of these medicines in clinical practice. At the same time, the possible risks and risk control measures in clinical application of Chinese patent medicines for external use are listed for clinical reference. In addition, the guideline provides guidance for risk minimization plans and the standardization of activities related to pharmacovigilance of Chinese patent medicines for external use in China.


Assuntos
Medicamentos de Ervas Chinesas , Farmacovigilância , Humanos , Medicamentos de Ervas Chinesas/efeitos adversos , Medicamentos de Ervas Chinesas/normas , China , Medicamentos sem Prescrição/efeitos adversos , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos
4.
Zhongguo Zhong Yao Za Zhi ; 49(16): 4261-4265, 2024 Aug.
Artigo em Chinês | MEDLINE | ID: mdl-39307761

RESUMO

Drug administration law of the People's Republic of China(2019 revised edition), which came into effect on December 1, 2019, proposed that " the state shall establish a pharmacovigilance system". Pharmacovigilance work of Chinese patent medicines is more difficult, and it is necessary to carry out Pharmacovigilance activities that are in line with the characteristics of Chinese patent medicines. Pharmacovigilance guidelines of Chinese patent medicines(T/CACM 1563. 1-2024), based on the principles of Drug Administration Law of the People's Republic of China(2019 revised edition) and Pharmacovigilance quality management standards(No. 65 of 2021) of the National Medical Products Administration, draws on the EU Pharmacovigilance regulation and the secondary guidelines of International Council for Harmonization of Technical Requirements for Pharmaceuticals for Human Use(ICH), and it is drafted in accordance with the provisions of Guidelines for standardization work part 1: structure and drafting rules of standardization documents(GB/T1. 1-2020) based on the characteristics of Chinese patent medicines. It serves as a general document for a series of pharmacovigilance guidelines of Chinese patent medicines, such as Guidelines for construction of traditional Chinese medicine pharmacovigilance system in medical institutions(T/CACM 1563. 2-2024), Pharmacovigilance guidelines for clinical application of oral Chinese patent medicines(T/CACM 1563. 3-2024), Pharmacovigilance guidelines for clinical application of traditional Chinese medicine injections(T/CACM 1563. 4-2024), Pharmacovigilance guidelines for clinical application of Chinese patent medicines for external use(T/CACM 1563. 5-2024), and Pharmacovigilance guidelines for clinical application of Chinese patent medicines for mucosal administration(T/CACM 1563. 6-2024), including four major elements of pharmacovigilance monitoring and reporting of Chinese patent medicines, signal identification, risk evaluation, and risk control, as well as pharmacovigilance activities for Chinese patent medicines, ensuring the safety of public drug use.


Assuntos
Medicamentos de Ervas Chinesas , Farmacovigilância , Humanos , China , Medicamentos de Ervas Chinesas/normas , Medicamentos de Ervas Chinesas/efeitos adversos , Medicamentos sem Prescrição/normas , Medicamentos sem Prescrição/efeitos adversos , Guias como Assunto , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos
5.
Zhongguo Zhong Yao Za Zhi ; 49(16): 4291-4297, 2024 Aug.
Artigo em Chinês | MEDLINE | ID: mdl-39307766

RESUMO

The group standard Pharmacovigilance guidelines for clinical application of Chinese patent medicines for mucosal administration was released on January 16, 2024, on the national group standards information platform by the Institute of Basic Research in Clinical Medicine of China Academy of Chinese Medical Sciences and School and Hospital of Stomatology of Peking University, under the centralized management by the China Association of Chinese Medicine. The standard number is T/CACM 1563.6-2024. It aims to propose key elements and specify technical methods for safety monitoring and reporting, signal identification, risk assessment, and risk control based on the Drug administration law of the People's Republic of China(revised in 2019), which establishes normative pharmacovigilance guideline of Chinese patent medicine for mucosal administration that is in line with the characteristics of traditional Chinese Medicine(TCM) based on the pharmacovigilance content for clinical application of Chinese patent medicine for mucosal administration. The group standard has been discussed by internal and external experts through multiple rounds of consultation. It serves as a guiding document for stakeholders involved in pharmacovigilance activities, including pharmaceutical license holders, drug manufacturers, medical institutions, research institutes, and pharmaceutical trading enterprises.


Assuntos
Medicamentos de Ervas Chinesas , Farmacovigilância , Humanos , Medicamentos de Ervas Chinesas/normas , Medicamentos de Ervas Chinesas/administração & dosagem , Medicamentos de Ervas Chinesas/efeitos adversos , China , Administração através da Mucosa , Medicina Tradicional Chinesa/normas , Medicamentos sem Prescrição
6.
Acta Pharmacol Sin ; 2024 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-39284878

RESUMO

Chronic itch is a maladaptive and debilitating symptom in patients with allergic contact dermatitis (ACD), adversely affecting their quality of life. There is a lack of effective treatments for ACD-associated uncontrollable itch. In this study, we explored the antipruritic effects of baicalein (BE), a bioactive flavonoid extracted from the root of Scutellaria baicalensis Georgi, and the underlying mechanisms in alleviating chronic itch triggered by diphenylcyclopropenone (DCP) in a mouse model of ACD. The ACD mice were intraperitoneally injected with BE (5, 30, and 60 mg·kg-1·d-1) for 7 days during the DCP challenge phase. The results showed that DCP-treated mice exhibited severe spontaneous scratching behaviors that was reduced after BE injections in a dose-dependent manner accompanied by inhibition of spinal astrocyte activation. We observed that the spinal astrocytic STAT3-LCN2 cascade plays a crucial role in controlling the activation of astrocytes in chronic itch. Intrathecal injection of the STAT3 inhibitor AG490 or Lcn2 siRNA significantly reduced scratching behavior and astrocyte activation in ACD mice. Moreover, BE markedly attenuated the increased phosphorylation of STAT3 (p-STAT3) and LCN2 expression in the spinal cords of ACD mice and in lipopolysaccharide-stimulated primary spinal astrocytes. Altogether, BE relieved chronic itch by suppressing the spinal astrocytic STAT3-LCN2 cascade. These findings provide a potential avenue for the management of chronic itch. Schematic summary of the main findings illustrating that BE alleviates chronic itch through suppressing the spinal astrocytic STAT3-LCN2 cascade. Specifically, BE suppresses the expression of p-STAT3 to inhibit the reactive state of astrocytes in spinal dorsal horn, and then decreases the expression of astrocytic LCN2 to alleviate chronic itch in ACD mice.

7.
Zhongguo Zhong Yao Za Zhi ; 49(3): 842-848, 2024 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-38621888

RESUMO

Due to the lack of specialized guidance, the post-marketing research on clinical effectiveness of Chinese patent medicines demonstrates varied quality and lacks high-quality evidence, failing to meet the demands of policy-making, clinical decision-making, and industrial decision-making. To address this issue, this project gathered experts in clinical medicine, clinical pharmacy, evidence-based medicine, drug epidemiology, medical ethics, and policy and regulation in China. They referred to the model of international post-marketing research on medicines and developed Guidelines for post-marketing research on clinical effectiveness of Chinese patent medicines under the framework of relevant laws and regulations and technical guidance documents in China. The guidelines were developed with consideration to the characteristics of Chinese patent medicines, China's national conditions, and all the stakeholders including marketing authorization holders, clinical researchers, drug administration, and users. The development of the guidelines followed the requirements for developing group standards set by the China Association of Chinese Medicine. The guidelines fully implement the concept of full life-cycle research, emphasizing the combination of traditional Chinese medicine(TCM) theory, human use experience, and clinical trials and pay attention to the compliance, scientificity, and ethics of research. The guidelines clarify the topic selection and decision-making path of the post-marketing research on effectiveness of Chinese patent medicines through six steps: determining research purpose, analyzing drug characteristics, evaluating research basis, proposing clinical orientation, clarifying research purpose, and implementing classified research. The general principles of research design and implementation were clarified from eight aspects: research type, research objects, sample size, efficacy indicators, bias, missing data, evidence level, and practicality. It focuses on the research on the TCM syndrome-based efficacy evaluation, clinical value-oriented mechanism of action, and the effectiveness of Chinese patent medicines with different routes of administration. The guidelines provide a universal methodological basis for the post-marketing research on clinical effectiveness of Chinese patent medicines.


Assuntos
Medicamentos de Ervas Chinesas , Medicamentos sem Prescrição , Humanos , Medicamentos sem Prescrição/uso terapêutico , Medicina Tradicional Chinesa , Medicina Baseada em Evidências , Resultado do Tratamento , China , Medicamentos de Ervas Chinesas/uso terapêutico
8.
Zhongguo Zhong Yao Za Zhi ; 49(4): 1129-1136, 2024 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-38621920

RESUMO

With the premise of drug safety and effectiveness, pharmacoeconomic evaluation can provide optimal solutions for diversified decision-making application scenarios from different research perspectives while maximizing the rational utilization of existing healthcare resources. Chinese patent medicine is an essential component of pharmaceutical utilization in China and a significant part of healthcare expenditure in China. However, the economic evaluation of post-marketing Chinese patent medicine is lacking. These evaluations often lack standardization, exhibit varying quality, and are unable to effectively support healthcare decisions, indicating a need for improvement in overall quality. Given this situation, this project has gathered leading experts from China and has strictly adhered to the requirements of the group standards set by the China Association of Traditional Chinese Medicine in developing Guidelines for economic evaluation of post-marketing Chinese patent medicine, aiming to provide methodological guidance for the post-market pharmacoeconomic evaluation of Chinese patent medicine, enhancing the standardization of pharmacoeconomic evaluations of Chinese patent medicine and the scientific validity of research results, and thereby elevating the overall quality of pharmacoeconomic evaluations for post-marketing Chinese patent medicine. The guidelines adhere to the framework provided by relevant laws and regulations in China and technical guidance documents. It is based on guidance from traditional Chinese medicine(TCM) theories, focusing on the unique characteristics of TCM. It covers various aspects of pharmacoeconomic evaluation, including fundamental principles, research topic selection, research question definition, study design type selection, cost identification and measurement, health outcomes, and evaluation methods. The guidelines offer methodological recommendations and decision guidance to address common issues and challenges in the pharmacoeconomic evaluation of post-marketing Chinese patent medicine.


Assuntos
Medicamentos de Ervas Chinesas , Medicamentos sem Prescrição , Vigilância de Produtos Comercializados , Análise Custo-Benefício , Medicina Tradicional Chinesa , China
9.
Zhongguo Zhong Yao Za Zhi ; 49(6): 1683-1689, 2024 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-38621952

RESUMO

The purpose of this study was to evaluate the economics of Annao Pills combined with antihypertensive drugs in the treatment of primary hypertension in the Chinese medical setting. TreeAge pro 2018 was used for cost-effect analysis and sensitivity analysis of the two treatment regimens. The intervention time of the simulation model was 2 weeks. The cost parameters were derived from Yaozhi.com, and the effect parameters were based on Meta-analysis of randomized controlled trial(RCT) involving Annao Pills. The experimental group was treated with Annao Pills combined with anti-hypertensive drugs(nifedipine controlled-release tablets + losartan potassium tablets), and the control group was treated with anti-hypertensive drugs(nifedipine controlled-release tablets + losartan potassium tablets). The basic analysis showed that the incremental cost-effect ratio(ICER) of the two groups was 2 678.67 yuan, which was less than 7.26% of the per capita disposable income in 2022. That is, compared with anti-hypertensive drugs alone, Annao Pills combined with antihypertensive drugs cost 2 678.67 yuan more for each additional patient with primary hypertension. The results of sensitivity analysis verified the robustness of the basic analysis results. The probability sensitivity results showed that when the patient's personal willingness to pay the price was higher than 2 650 yuan, the probability of the regimen in the experimental group was higher, which was consistent with the results of the basic analysis. In conclusion, when the price was higher than 2 650 yuan, Annao Pills combined with anti-hypertensive drugs was more economical than anti-hypertensive drugs alone in terms of improving the response rate of the patients with primary hypertension.


Assuntos
Anti-Hipertensivos , Nifedipino , Humanos , Anti-Hipertensivos/uso terapêutico , Análise Custo-Benefício , Árvores de Decisões , Preparações de Ação Retardada , Hipertensão Essencial , Losartan/uso terapêutico
11.
Langmuir ; 2024 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-38343282

RESUMO

Magnetic polymer composites have been widely utilized in potential applications in material science, such as reduction of dyes, immunodiagnostics, biomedicals, and magnetically controllable photonic crystals owing to large surface areas, fast separation, and recyclable performance. In this work, anisotropic magnetic particles were prepared by seeded emulsion polymerization, with morphologies of "Fe3O4-shell", "hemisphere-like", "raspberry-like", "multiple lobes-like", and "sandwich-like". Poly(styrene/divinylbenzene/mono-2-(methacryloxy)ethyl succinate)@ Fe3O4 (P(St/DVB/MMES)@Fe3O4) were the seed microspheres, and P(St/DVB/MMES)@Fe3O4@polymer particles are achieved by seeded emulsion polymerizations. The morphology of the particles depends on polymerization conditions (monomer ratios and surfactant), particle properties, and so on. Then, the minimum surface free energy change principles were used to predict the equilibrium morphologies of the magnetic polymer composites. Through theory, the model gives the correct tendency and good agreement with the equilibrium morphology which was in tandem with TEM results. Lastly, after in situ surface deposition of Ag nanoparticles, magnetic composite particles with sandwich-like morphology were applied for the catalytic degradation of 4-nitrophenol (4-NP) reacting with NaBH4. The apparent rate coefficient is 0.0069 s-1, and it can keep mainly about 80% efficiency in catalysis after five cycles.

12.
PeerJ ; 12: e16721, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38250726

RESUMO

Wild plants represent a potential source of urban landscape trees. Stranvaesia davidiana Dcne. is a member of the Stranvaesia Lindl. Genus, which belongs to family Rosaceae Juss. It has great ornamental value. It can contribute to urban color foliage and fruit species. However, the most effective fertilizer application strategy required for its cultivation is unknown. Therefore, we conducted an orthogonal experiment to investigate the fertilizer type and level (pure nitrogen) using ten experimental groups, including an untreated control group. Pot experiments were used to determine the growth indices of seedlings, including plant height, basal diameter, and chlorophyll content post-fertilizer treatment. This study explored the most appropriate fertiler application model for the growth of S. davidiana seedlings. The results revealed that enhanced seedling growth depended on the type and amount of fertilizer used, and their interaction. Fertilizer application increased the plant height by 2.67 cm to 12.26 cm, basal diameter by 0.39 cm to 0.75 cm, and chlorophyll content by 5.66 to 19.86. Among the different types of fertilizer, organic fertilizer increased the plant height by 0.42 cm to 9.59 cm and basal diameter by 0.01 cm to 0.05 cm, compared with the control group. Organic fertilizer had the maximum effect on seedling growth, especially at medium levels. The total growth of basal diameter and chlorophyll content was 1.58 ± 0.04 cm and 39.53 ± 2.37, respectively. Basal diameter is the most critical index in seedling reproduction . The study results suggest that the application of 4.06 g of organic fertilizer per plant was the most effective, and served as a basis for further field trials.


Assuntos
Rosaceae , Plântula , Fertilizantes , Clorofila , Grupos Controle
13.
Zhongguo Zhong Yao Za Zhi ; 48(15): 4243-4252, 2023 Aug.
Artigo em Chinês | MEDLINE | ID: mdl-37802793

RESUMO

The articles involving Xiangju Capsules were retrieved, and qualitative research and quantitative research methods were combined to evaluate the evidence of the safety, effectiveness, economy, innovation, suitability, accessibility, and characteristics of traditional Chinese medicine( "6+1" dimensions) of this drug. Multi-criteria decision analysis(MCDA) model and CSC v2.0 software were used to comprehensively evaluate the clinical value of Xiangju Capsules in the treatment of rhinosinusitis and clarify the precise clinical positioning. The dimensions are graded A, B, C, or D. Multi-source safety evidence showed that the main adverse reactions were gastrointestinal reactions, rash, itching, dizziness, and headache. Based on the available studies, the risk is controllable and the safety is grade A. Meta-analysis showed that Xiangju Capsules + conventional western medicine could recover the Lund-Kennedy score, Lund-Mackay score, and CT score, relieve headache, nasal congestion, olfactory disturbance, and facial pain, with the effectiveness is grade B. The incremental cost-effectiveness ratio of Xiangju Capsules + conventional western medicine compared with conventional western medicine alone in the treatment of chronic rhinosinusitis was 263.71 yuan, about 0.82% of the per capita disposable income. The results of sensitivity analysis showed that the research results were relatively robust. Based on the assumption that the per capita disposable income in 2020 will be the threshold of patients' willingness to pay, it is more economical to use Xiangju Capsules + conventional western medicine. The drug belongs to grade A of the national medical insurance, with an average daily cost of 3.06 yuan, and the economy is grade B. This formula is modified from classic formulas and characteristic empirical formulas, be capable of improving immunity and preventing repeated attacks. It can be used for acute and chronic rhinitis-rhinosinusitis. It had a wide range of applicability, especially for the patients with head and face tenderness. Service innovation was reflected in the measures to guarantee supply, capacity, scalability, and coverage of grass-roots sales channels. The industrial innovation was improved through the management of medicinal resources, pharmaceutical industry, production technology, quality control, scientific research and development, and this formula won three national invention patents. Comprehensively, the innovation of Xiangju Capsules is grade B. According to the survey of 188 medical practitioners and 196 patients in 20 provinces, municipalities, and autonomous regions of China, the drug was characterized by easy preparation and administration, individualized medication, simple technology and management, convenient use, storage, and transport, and controllable adverse reactions, with the suitability is grade B. Xiangju Capsules showed the cost of 45.9 and 275.4 yuan for treatment of acute and chronic rhinitis-rhinosinusitis, respectively, being well affordable. It was sold in 35 000 medical institutions in China. The dosage form was suitable for transportation, storage, and grass-root application. With rich, sustainable, and available medicinal resources, the accessibility of Xiangju Capsules is grade A. This drug can be used for both acute and chronic rhinitis-rhinosinusitis, clearing heat and expelling pus, and strengthening the exterior to prevent relapse. After this drug was available on the market, over 4 000 cases were studied, with rich experience in human use accumulated, and characteristics of traditional Chinese medicine is grade B. Overall, the clinical value of Xiangju Capsules is class B. It is suggested that Xiangju Capsules should be used in accordance with the relevant policies of basic clinical drug administration to play its role.


Assuntos
Rinite , Sinusite , Humanos , Rinite/tratamento farmacológico , Sinusite/tratamento farmacológico , Medicina Tradicional Chinesa , Cefaleia , China , Cápsulas
14.
ACS Appl Mater Interfaces ; 15(25): 30837-30848, 2023 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-37332160

RESUMO

Magnetic nanospheres are becoming a promising platform for a wide range of applications in pharmacy, life science, and immunodiagnostics due to their high surface area, ease of synthesis and manipulation, fast separation, good biocompatibility, and recyclable performance. In this work, an innovative and efficient method is developed by in situ reducing and growing Ni(OH)2 for the preparation of dendritic mesoporous nanocomposites of silica@Fe3O4/tannic acid@nickel hydroxide (dSiO2@Fe3O4/TA@Ni(OH)2). The flower-like nanospheres have good magnetic response, large surface area, and high histidine-rich protein (His-protein) purification performance. The dSiO2@Fe3O4/TA@Ni(OH)2 nanospheres were synthesized on the basis of a φ(NaSal/CTAB) of 1/1 and a mass of ferrous chloride tetrahydrate of 0.3 g, resulting in a saturation magnetization value of 48.21 emu/g, which means it can be collected within ∼1 min using a magnetic stand. Also, the BET test showed that the surface area is 92.47 m2/g and the pore size is ∼3.9 nm for dSiO2@Fe3O4/TA@Ni(OH)2 nanocomposites. Notably, the nickel hydroxide with unique flower-like structural features enables the combination of a large number of Ni2+ ions and His-proteins for high performance. The isolation and purification experiments of the synthesized dSiO2@Fe3O4/TA@Ni(OH)2 were performed by separating His-proteins from a matrix composed of bovine hemoglobin (BHb), bovine serum albumin (BSA), and lysozyme (LYZ). The result showed that the nanospheres have a high combination capacity of ∼1880 mg/g in a rapid equilibrium time of 20 min, which was selective for the adsorption of BHb. In addition, the stability and recyclability of BHb are 80% after seven cycles. Furthermore, the nanospheres were also used to isolate His-proteins from fetal bovine serum, proving its utility. Therefore, the strategy of separating and purifying His-proteins using dSiO2@Fe3O4/TA@Ni(OH)2 nanospheres is promising for practical applications.


Assuntos
Dendrímeros , Nanosferas , Nanosferas/química , Hemoglobinas , Soroalbumina Bovina , Fenômenos Magnéticos
15.
J Gastrointest Oncol ; 14(1): 325-333, 2023 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-36915461

RESUMO

Background: The clinical education of interns on hepatocellular carcinoma (HCC) is both crucial and difficult in China, even if the education reform has advanced constantly over the years. The value of specific 3D printing model (3DPM) in clinical education of HCC is uncertain, and relevant literatures are very few. This study aimed to explore the effects of a patient-specific 3D printing liver model on the clinical education of HCC. Methods: Three laparoscopic hepatectomies were collected. For each case, a 3D virtual reconstruction (3DVR) and 3DPM were created using multi-detector computed tomography (MDCT) data, respectively. A total of 62 interns were randomly assigned to each group (3DPM, 3DVR, and MDCT groups) through a table of random numbers for random grouping. Following lecture-based HCC education, interns in each group selected a corresponding model of HCC. All interns were tested on the hepatic tumor locations, the vessels adjacent to them, surgical planning, and test time using the centesimal system score within 90 min. A questionnaire investigation on the degree of satisfaction, interest, and helpfulness for improving the comprehension ability of liver anatomy and 3D spatial structures was also recorded. The 3DPM group were compared with both 3DVR and MDCT group by theoretical examination scores and questionnaire survey satisfaction to evaluate the effects of 3DPM on the interns' clinical education in HCC. Results: All the interns completed the test and questionnaire. The 3DPM group gained significantly higher scores on the following test contents: indicating the correct tumor location (3DPM vs. 3DVR, MDCT: 36.7±4.8 vs. 33.2±5.8, 26.8±10.0, P=0.03, P<0.01, respectively), accurately identifying the relationship between the tumor and vessels (3DPM vs. 3DVR, MDCT: 37.1±4.6 vs. 31.6±3.7, 30.0±5.8, P<0.01, P<0.01, respectively), and designing appropriate surgical plans (3DPM vs. 3DVR, MDCT: 8±2.7 vs. 4.9±2.7, 5.9±3.8, P<0.01, P=0.04, respectively). The 3DPM group showed a higher degree of satisfaction (86.2%), interest (92.1%), and helpfulness (80.5%) for improving the comprehension ability of liver anatomy and 3D spatial structures. Conclusions: The clinical teaching by utilizing 3DPM can significantly improve the professional theoretical level, strengthen clinical thinking and comprehensive ability, and improve the teaching effects of HCC for medical interns.

16.
Front Immunol ; 14: 1083069, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36776894

RESUMO

Liver cancer is one of the most common malignant tumors globally. Not only is it difficult to diagnose, but treatments are scarce and the prognosis is generally poor. Hepatocellular carcinoma (HCC) is the most common type of liver cancer. Aggressive cancer cells, such as those found in HCC, undergo extensive metabolic rewiring as tumorigenesis, the unique feature, ultimately causes adaptation to the neoplastic microenvironment. Intratumoral heterogeneity (ITH) is defined as the presence of distinct genetic features and different phenotypes in the same tumoral region. ITH, a property unique to malignant cancers, results in differences in many different features of tumors, including, but not limited to, tumor growth and resistance to chemotherapy, which in turn is partly responsible for metabolic reprogramming. Moreover, the different metabolic phenotypes might also activate the immune response to varying degrees and help tumor cells escape detection by the immune system. In this review, we summarize the reprogramming of glucose metabolism and tumoral heterogeneity and their associations that occur in HCC, to obtain a better understanding of the mechanisms of HCC oncogenesis.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/patologia , Neoplasias Hepáticas/patologia , Prognóstico , Transformação Celular Neoplásica , Imunidade , Microambiente Tumoral/fisiologia
17.
Neurochem Res ; 48(2): 458-470, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36322370

RESUMO

BACKGROUND: Subarachnoid hemorrhage (SAH) is a cerebral hemorrhagic disease with a high disability and fatality rate. Cell pyroptosis is involved in the brain injury following SAH. Here, we explored the effect of HDAC inhibitor SAHA against cell pyroptosis after SAH. METHODS: The rat SAH model was established by endovascular perforation and the rat microglia were treated with 25 µm oxyhemoglobin (OxyHb) for 24 h to mimic SAH model in vitro. Neurological score and brain edema were assessed in rat SAH model. TUNEL staining detected apoptosis. qRT-PCR and western blotting were employed to detect expression levels of miR-340, NEK7 and inflammatory cytokines. ELISA assay determined the secretion of IL-1ß and IL-18 in rat serum and cell supernatant. A lactate dehydrogenase (LDH) kit measured the LDH activity in rat primary microglia. Microglia pyroptosis was detected by flow cytometry. RIP and dual luciferase reporter assays confirmed the binding relationship between miR-340 and NEK7. RESULTS: SAHA alleviated neurological dysfunction, inflammatory injury and microglia pyroptosis in SAH rats. SAHA suppressed LDH release, inflammatory factor expression and pyroptosis in microglia treated with OxyHb. Meanwhile, SAHA increased miR-340 expression and inhibited NEK7 level in vivo and in vitro SAH models. Further, miR-340 directly targeted NEK7 to inhibit the NLRP3 signaling pathway. Knockdown of miR-340 or overexpression of NEK7 reversed the suppressive effects of SAHA on microglia inflammation and pyroptosis. Additionally, knockdown of NEK7 impaired microglia inflammation and pyroptosis induced by miR-340 inhibitor. CONCLUSION: HDAC inhibitor SAHA ameliorates microglia pyroptosis in SAH through triggering miR-340 expression to suppress NEK7 signaling. This novel mechanism provides promise for SAHA in SAH treatment.


Assuntos
MicroRNAs , Hemorragia Subaracnóidea , Ratos , Animais , Hemorragia Subaracnóidea/tratamento farmacológico , Hemorragia Subaracnóidea/metabolismo , Piroptose , Inibidores de Histona Desacetilases/farmacologia , Inibidores de Histona Desacetilases/uso terapêutico , Transdução de Sinais , Inflamação/metabolismo , MicroRNAs/metabolismo
18.
Zhongguo Zhong Yao Za Zhi ; 47(11): 3111-3117, 2022 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-35718536

RESUMO

In this study, TreeAge Pro was used to build a decision tree model for Qilong Capsules in the treatment of ischemic stroke. We compared the economy between Qilong Capsules + conventional therapy vs conventional therapy in the treatment of ischemic stroke to guide the rational allocation of health resources in clinical practice. The cost parameters in the study were obtained from Menet and the relevant literature published recently. Meanwhile, the efficacy parameter [mean reduction in National Institute of Health stroke scale(NIHSS) score after treatment] was employed to evaluate the short-term economic performance of the two therapies based on a prospective real-world cohort study. The time span of simulation was 24 weeks, and the robustness of this study was verified by sensitivity analysis. Qilong Capsules + conventional therapy and conventional therapy had the direct medical costs of CNY 22 546.50, 21 160.50 and the effectiveness of 2.08, 1.59 points, respectively. The incremental cost-effectiveness ratio(ICER) of the two groups was CNY 2 811.36. That is, compared with conventional therapy, Qilong Capsules + conventional therapy in the treatment of ischemic stroke costed CNY 2 811.36 for each additional point reduction in NIHSS score. If the patient is willing to pay more than CNY 2 811.36, Qilong Capsules + conventional therapy is more economical. The result of sensitivity analysis verified that the ICER was robust. Thus, on the basis of the assumption that per capita disposable income in 2020 is the threshold of patients' willingness to pay, Qilong Capsules + conventional therapy is more economical than conventional therapy alone in the treatment of ischemic stroke.


Assuntos
AVC Isquêmico , Acidente Vascular Cerebral , Cápsulas , Estudos de Coortes , Análise Custo-Benefício , Humanos , AVC Isquêmico/tratamento farmacológico , Estudos Prospectivos , Anos de Vida Ajustados por Qualidade de Vida , Acidente Vascular Cerebral/tratamento farmacológico
19.
Zhongguo Zhong Yao Za Zhi ; 47(6): 1459-1468, 2022 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-35347944

RESUMO

The present study systematically sorted out the existing research on Qilong Capsules in the treatment of ischemic stroke with Qi deficiency and blood stasis syndrome and comprehensively evaluated its clinical evidence and value to highlight the advantages and characteristics of products and provide references for the decision-making of national pharmaceutical management departments. Based on the evidence-based medicine, epidemiology, clinical medicine, evidence-based pharmacy, and pharmacoeconomics, the qualitative and quantitative evaluation of "6+1" dimensions of safety, effectiveness, economy, innovation, suitability, and accessibility, as well as characteristics of traditional Chinese medicine(TCM) was performed with multi-criteria decision analysis(MCDA) mo-del using the information, such as public data, literature data, pharmaceutical research, and questionnaire survey, and CSC v2.0 was used to calculate the clinical value of Qilong Capsules. The evaluation results were grade A, B, C, or D. Spontaneous reporting system(SRS) monitoring data, literature reports, clinical trials, and other multi-source safety evidence showed that the main adverse reactions of this drug included dry mouth, nausea, and rash, and no severe adverse reactions was found. The evidence was sufficient with small and controllable known risks, and the safety was grade A. Meta-analysis showed that Qilong Capsules combined with conventional western medicine in the treatment of acute ischemic stroke was superior to the control group in improving neurological deficits, clinical total response rate, patients' activities of daily living, and hemorheological indexes. The level of evidence was high with manifest clinical significance, and the effectiveness was grade A. The results of pharmacoeconomic research showed that Qilong Capsules combined with conventional western medicine in the treatment of ischemic stroke were advantageous in cost-effectiveness as compared with conventional western medicine alone, but the incremental effect was not significant. The quality evaluation results of the economic report were comparatively clear, and the economy was grade B. Aiming at major cerebrovascular diseases in the society and giving full play to the advantages of TCM, Qilong Capsules focused on the inheritance of classics and scientific and technological innovation, and innovation was grade B. The results of the questionnaire survey showed that the technical characteristics and drug application could meet the medication needs of clinical doctors and patients, and the suitability was grade B. The price level of this drug was comparatively high and the affordability was good since the treatment cost accounted for a small proportion of disposable income. The drug accessibility was good with a wide range of drug sales, sufficient production capacity, and sustainable medicinal materials resources, and was grade B. This drug was derived from the classic prescription Buyang Huanwu Decoction with rich experience of human application, which could regulate Qi and blood circulation, and the section of TCM characteristics was grade B. Based on the evidence evaluation results of "6+1" dimensions of Qilong Capsules, the comprehensive evaluation of clinical value was class A. It is suggested that it can be transformed into relevant policy results of basic clinical medication management according to procedures.


Assuntos
AVC Isquêmico , Atividades Cotidianas , Cápsulas , Humanos , Medicina Tradicional Chinesa , Qi
20.
Zhongguo Zhong Yao Za Zhi ; 47(6): 1469-1475, 2022 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-35347945

RESUMO

This study aims to comprehensively summarize articles on the treatment of coronary heart disease angina pectoris with heart blood stasis syndrome(CHD-AP-HBSS) by Guanxin Shutong Capsules(GSC), and comprehensively evaluate the evidence and value of the formula in "6+1" dimensions based on multi-criteria decision analysis(MCDA) model and Guidelines for Management of Comprehensive Clinical Evaluation of Drugs(trial version 2021) with quantitative and qualitative methods, which is expected to highlight the clinical characteristics and advantages of the prescription and serve as a reference for medical and health departments. The dimensions are grade A, B, C, or D. In terms of safety, according to the reports from the spontaneous reporting system of National Center for ADR Monitoring, and literature analysis, GSC mainly results in the adverse reactions of mild or moderate nausea, diarrhea, rash, palpitation, and headache, with favorable prognosis in patients. Nevertheless, severe adverse reactions have been reported after marketing. Thus, additional evidence for its safety should be accumulated, and the current safety is grade B. Meta-analysis proves that GSC in combination with conventional treatment is superior to conventional treatment alone in alleviating AP and symptoms indicated by electrocardiogram(ECG). Therefore, the effectiveness of the medicine is grade A. As for the pharmacoeconomic value, based on the assumption that the per capita disposable income in 2020 is the willingness-to-pay threshold, it is more economical for CHD-AP patients to use GSC combined with conventional treatment than conventional treatment alone. However, as the currently available clinical parameters fail to support the difference in indirect cost between the two groups, the accuracy in the cost of intervention plan needs to be further improved. Therefore, the economy of the prescription is grade B. GSC has been awarded 13 national invention patents and 1 utility model patent, and won a lot of national and provincial patent awards, marking the enterprise service awareness and innovativeness. As a result, it is grade A in aspect of innovation. A questionnaire on the suitability of GSC suggests that publicity and promotion influence patients' choice and thus additional efforts should be made in this aspect. The suitability of this formula is grade B. Both rural and urban residents can afford the medicine for the whole course and the price is close to that of similar Chinese patent medicines. In addition, it is accessible regardless of season and place, so accessibility is grade A. As a Mongolian empirical formula destined to treat heart stabbing pain, it has the effects of activating blood and resolving stasis, dredging channels and activating collaterals, and moving Qi to relieve pain, and boasts the empirical evidence of more than 2 000 human cases. With prominent characteristics of traditional Chinese medicine, it is grade B. Based on the MCDA model and CSC v2.0, GSC is comprehensively class A in the treatment of CHD-AP-HBSS. The result can serve as a reference for basic clinical medication management.


Assuntos
Doença das Coronárias , Medicamentos de Ervas Chinesas , Angina Pectoris/tratamento farmacológico , Cápsulas , Doença das Coronárias/complicações , Doença das Coronárias/tratamento farmacológico , Medicamentos de Ervas Chinesas/efeitos adversos , Humanos
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