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1.
Braz. arch. biol. technol ; 65: e2210409, 2022. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1364456

ABSTRACT

Abstract: Obtaining the accurate disparity of each pixel quickly is the goal of stereo matching, but it is very difficult for the 3D labels-based methods due to huge search space of 3D labels, especially for highresolution images. We present an novel two-stage optimization strategy to get the accurate disparity map for high-resolution stereo image efficiently, which includes feature points optimization and superpixel optimization. In the first stage, we construct the support points including edge points and robust points for triangulation, which is used to extract feature points and then perform spatial propagation and random refinement to get the candidate 3D label sets. In the stage of superpixel optimization, we update per pixel labels of the corresponding superpixels using the candidate label sets, and then perform spatial propagation and random refinement. In order to provide more prior information to identify weak texture and textureless areas, we design the weight combination of "intensity + gradient + binary image" for constructing an optimal minimum spanning tree (MST) to compute the aggregated matching cost, and obtain the labels of minimum aggregated matching cost. We also design local patch surrounding the corresponding superpixel to accelerate our algorithm in parallel. The experimental result shows that our method achieves a good trade-off between running time and accuracy, including KITTI and Middlebury benchmark, which are the standard benchmarks for testing the stereo matching methods.

2.
Acta Pharmaceutica Sinica ; (12): 36-45, 2022.
Article in Chinese | WPRIM | ID: wpr-913166

ABSTRACT

At present, cancer is still one of the most serious threats to human health. Despite the wide application of multiple cancer therapies in clinical practice, the therapeutic effects of most cancers are still far from satisfactory. In recent years, the discovery of regulated cell death may be a good first step on the road to treat cancer. Ferroptosis is triggered by lipid peroxidation of unsaturated fatty acids in cell membrane catalyzed by iron ion. It has been widely concerned as an emerging target for cancer therapy. With the booming of biomedical nanotechnology, ferroptosis as an emerging therapeutic target has attracted extensive attention. Here, we review the advance on the intersection of ferroptosis and biomedical nanotechnology. First, the research background of ferroptosis and nano-preparation as well as the feasibility of ferroptosis-based nano-drug delivery systems (nano-DDS) for cancer treatment are presented and analyzed. Then, the strategies for inducing ferroptosis based on nano-DDS are summarized, mainly including: the promotion of Fenton reaction, the inhibition of glutathione peroxidase 4 (GPX-4) and the restriction of the cysteine-glutamate exchange transporter (system Xc-). Furthermore, the combination therapy strategies based on biomedical nanotechnology induced ferroptosis are also discussed. Finally, we shine the spotlight on the prospects and challenges of ferroptosis-based nanotherapeutics in clinical application.

3.
Acta Pharmaceutica Sinica ; (12): 1-12, 2022.
Article in Chinese | WPRIM | ID: wpr-913160

ABSTRACT

Due to the complexity of tumor pathology, the demand for the combined use of multiple drugs in clinical treatment has become increasingly clear-cut. Multi-drug combination can act on multiple pathways and multiple targets simultaneously to exert synergistic effects. However, the current delivery strategy for multi-drug combination still needs to be optimized. Nano-drug delivery systems can carry drugs to overcome physiological and pathological barrier to target tumor tissues and cells, achieve the goal of continuous, controllable, and targeted delivery, and enhance the efficacy of anti-tumor synergism and detoxification. To meet the new requirements for smarter and more accurate antitumor multi-drug combinational therapy, the nano-drug delivery system has been well-designed to realize more functions. For instance, delivery of multiple drugs in accurate proportions and doses can make the multi-drug synergistic effect more precise; stimulus-responsive drug release can improve selectivity and reduce side effects; controlling the time-course relationship of multiple drugs can realize sequential drug combination effect. It has shown broad prospects in the field of tumor multidrug therapy and has become one of the new directions of research and development. This article reviews the recent developments in the application of tumor drug combination therapy strategies and their delivery systems, and analyzes the new requirements and challenges of multidrug combination for the development of nano-drug delivery systems.

4.
Arch. argent. pediatr ; 119(3): e234-e238, Junio 2021. tab, ilus
Article in Spanish | LILACS, BINACIS | ID: biblio-1248142

ABSTRACT

El síndrome de sensibilidad a fármacos con eosinofilia y síntomas sistémicos o síndrome de DRESS según sus siglas en inglés (drug reaction with eosinophilia and systemic symptoms) se encuentra entre las reacciones medicamentosas cutáneas graves. Este consiste en una tríada clínica que incluye fiebre, exantema y compromiso sistémico, acompañado de eosinofilia y/o linfocitos atípicos.Se presenta el caso de una paciente de sexo femenino con fibrosis quística, de 18 meses de edad, quien desarrolló esta patología durante un tratamiento con trimetoprima-sulfametoxazol para erradicar Staphylococcus aureus meticilino resistente en esputo. Los pacientes con fibrosis quística reciben múltiples esquemas antibióticos según bacteriología en secreciones respiratorias para evitar el deterioro de la función pulmonar y colonización por gérmenes resistentes. Es menester conocer y sospechar este síndrome, debido al riesgo incrementado de hipersensibilidad a drogas en fibrosis quística, pronóstico ominoso y su elevada morbimortalidad


Drug reaction with eosinophilia and systemic symptoms or DRESS syndrome is among severe cutaneous drug reactions. This constitutes a clinical triad that includes fever, skin rash and systemic compromise, accompanied by eosinophilia and/or atypical lymphocytes.We present the case of an 18-month-old female patient with cystic fibrosis, who develops this pathology during a trimethoprim-sulfamethoxazole cycle as an eradicating treatment of methicillin-resistant Staphylococcus aureus in bronchial secretions. Cystic fibrosis patients receive multiple antibiotic regimens according to bacteriology in sputum, to avoid impairment in their lung function and colonization by resistant germs. Due to the increased risk of drug hypersensitivity in cystic fibrosis, an ominous prognosis and high morbidity and mortality, knowledge and a high index of suspicion of this syndrome are necessary


Subject(s)
Humans , Female , Infant , Cystic Fibrosis , Drug Hypersensitivity Syndrome/diagnosis , Staphylococcus aureus , Trimethoprim, Sulfamethoxazole Drug Combination/adverse effects , Drug-Related Side Effects and Adverse Reactions , Eosinophilia/diagnosis , Drug Hypersensitivity Syndrome/complications
5.
Biomédica (Bogotá) ; 41(1): 65-78, ene.-mar. 2021. tab, graf
Article in English | LILACS | ID: biblio-1249059

ABSTRACT

Abstract | Introduction: Shigellosis is endemic in low-and middle-income countries, causing approximately 125 million episodes of diarrhea and leading to approximately 160.000 deaths annually one-third of which is associated with children. Objective: To describe the characteristics and antimicrobial resistance profiles of Shigella species recovered in Colombia from 1997 to 2018. Materials and methods: We received isolates from laboratories in 29 Colombian departments. We serotyped with specific antiserum and determined antimicrobial resistance and minimal inhibitory concentrations for ten antibiotics with Kirby-Bauer tests following the Clinical and Laboratory Standards Institute recommendations. Results: We analyzed 5,251 isolates of Shigella spp., most of them obtained from stools (96.4%); 2,511 (47.8%) were from children under five years of age. The two most common species were S. sonnei (55.1%) and S. fbxneri (41.7%). The highest resistance rate was that of tetracycline (88.1%) followed by trimethoprim-sulfamethoxazole (79.3%) and ampicillin (65.5%); 50.8% of isolates were resistant to chloramphenicol, 43.6% to amoxicillin/clavulanic acid, and less than 1% to cefotaxime, ceftazidime, gentamicin, and ciprofloxacin. In S. sonnei, the most common resistance profile corresponded to trimethoprim-sulfamethoxazole (92%) whereas in S. fbxneri the most common antibiotic profiles were multidrug resistance. Conclusions. In Colombia, children under five years are affected by all Shigella species. These findings should guide funders and public health officials to make evidence-based decisions for protection and prevention measures. The antimicrobial resistance characteristics found in this study underline the importance of combating the dissemination of the most frequently isolated species, S. sonnei and S. ftexneri.


Resumen | Introducción. La shigelosis es endémica en los países de ingresos bajos y medios y ocasiona aproximadamente 125 millones de episodios de diarrea y 160.000 muertes al año, un tercio de los cuales se presenta en niños. Objetivo. Describir las características y los perfiles de resistencia antimicrobiana en aislamientos de Shigella spp. recuperados en Colombia entre 1997 y 2018. Materiales y métodos. Los aislamientos provenían de laboratorios en 29 departamentos de Colombia. La serotipificación se hizo con antisueros específicos de Shigella spp. y, la determinación de los perfiles de resistencia y la concentración inhibitoria mínima de diez antibióticos, por Kirby-Bauer. Resultados. Se estudiaron 5.251 aislamientos de Shigella spp. obtenidos de materia fecal (96,4 %); el 47,8 % de ellos correspondía a niños menores de cinco años. Las especies más frecuentes fueron S. sonnei (55,1 %) y S. ftexneri (41,7 %). Se presentó resistencia a tetraciclina (88,1 %), trimetoprim-sulfametoxasol (79,3 %), ampicilina (65,5 %), cloranfenicol (50,8 %) y amoxicilina-acido clavulánico (43,6 %). La resistencia no superó el 1 % contra cefotaxime, ceftazidima, gentamicina y ciprofloxacina. Para S. sonnei, el perfil de resistencia más frecuente correspondió a trimetoprim-sulfametoxasol, en contraste con S. ftexneri, cuyos perfiles fueron todos multirresistentes. Conclusiones. Los niños menores de cinco años se vieron afectados por todas las especies de Shigella spp., aspecto que los legisladores en salud pública deben considerar a la hora de tomar decisiones en torno a las medidas de prevención y protección frente a esta enfermedad. Las características de resistencia antimicrobiana de los aislamientos de Shigella spp. en Colombia ponen de manifiesto la importancia de combatir la diseminación de las dos especies más frecuentes en casos clínicos, S. sonnei y S. ftexneri.


Subject(s)
Dysentery, Bacillary , Drug Resistance, Microbial , Trimethoprim, Sulfamethoxazole Drug Combination , Cephalosporins , Chloramphenicol , Fluoroquinolones , Public Health Surveillance , Ampicillin
6.
Arq. ciências saúde UNIPAR ; 25(1): 79-85, jan-abr. 2021.
Article in Portuguese | LILACS | ID: biblio-1151426

ABSTRACT

Introdução: O diagnóstico da hanseníase possui números significativos que causam preocupação à saúde pública. Os casos de resistência medicamentosa nessa doença se iniciaram em meados dos anos 60 e diante do problema, a Organização Mundial da Saúde instituiu em 1981 a poliquimioterapia, associação dos antibióticos rifampicina, dapsona e clofazimina, tratamento atual de escolha. A resistência aos fármacos na hanseníase é reportada pela literatura, desvelando um obstáculo à sua eliminação. Apresentamos nessa revisão os principais aspectos da resistência medicamentosa no tratamento para hanseníase e seus impactos. Metodologia: Revisão sistemática sobre os aspectos da resistência medicamentosa utilizando a pesquisa exploratória como metodologia de abordagem. Foram pesquisados os termos resistência medicamentosa, hanseníase, recidiva, alterações genéticas e os operadores booleanos "and" e "or" na busca. Resultados e discussão: A dificuldade de tomar a medicação corretamente foi um dos principais fatores que acarretaram resistência do bacilo Mycobacterium leprae aos fármacos. Homens de países norte e sul-americanos e asiáticos foram os mais atingidos por episódios de resistência. A resistência medicamentosa é uma das principais causas de recidivas em hanseníase. O principal fármaco causador de resistência medicamentosa descrito nos trabalhos foi a dapsona (46,6%) e a maioria das alterações genéticas encontradas estão no gene rpoB; 23,2% dos registros relatados foram de resistência secundária aos fármacos e, também, sete casos de resistência múltipla a esses medicamentos. Conclusão: Os principais aspectos da resistência medicamentosa na hanseníase são os equívocos ao ingerir os medicamentos e as alterações genéticas na bactéria. Os impactos causados estão na dificuldade de refazer o tratamento, a possibilidade de nova transmissão e o aparecimento de sintomas mais graves.


Introduction: The diagnosis of leprosy has significant numbers causing public health concern. Reports of drug resistance in this disease begun in the mid-1960s and due to this problem, the World Health Organization instituted a multidrug therapy with rifampicin, dapsone, and clofazimine antibiotic association in 1981, which is currently the first-choice treatment for leprosy. Cases of drug resistance have been reported in literature, revealing an obstacle to the eradication of the disease. This paper has the purpose of presenting the key aspects and impacts of drug resistance in the treatment for leprosy. Methods: Systematic review of the drug resistance aspects using exploratory research as an approach methodology. The authors searched the terms drug resistance, leprosy, recurrence, genetic alterations, and the Boolean operators "and" and "or" between them. Results and discussion: The difficulty in taking the medication correctly was one of the key factors that led to drug resistance for Mycobacterium leprae. Men from North and South American, as well as from Asian countries, were the most affected by episodes of resistance. Drug resistance is one of the main causes of leprosy recurrences. Dapsone was the most frequently identified drug resistance in the studies (46.6%), while most of the genetic alterations were found in the rpoB gene; 23.2% of the cases were from secondary resistance episodes, and seven cases of multiple resistance were reported. Conclusion: The misconceptions when taking the treatment and the Mycobacterium leprae genetic alterations have been described as the key aspects of drugs resistance in leprosy and the impacts caused are the difficulty in redoing the treatment, the possibility of new transmission, and the appearance of more severe symptoms.


Subject(s)
Drug Resistance/drug effects , Drug Resistance, Bacterial/drug effects , Mycobacterium leprae/drug effects , Rifampin/adverse effects , Bacteria/genetics , Pharmaceutical Preparations , Clofazimine/adverse effects , Fluoroquinolones/adverse effects , Dapsone/adverse effects , Drug Therapy, Combination/adverse effects , Leprosy/drug therapy , Anti-Bacterial Agents/adverse effects
7.
Rev. ciênc. farm. básica apl ; 42: 1-12, 20210101.
Article in English | LILACS-Express | LILACS | ID: biblio-1177729

ABSTRACT

Objectives: To systematically evaluate the effects of hydroxypropyl methyl cellulose (HPMC) type (E5LV, E15LV, and K100LV); plasticizer type (glycerol and mannitol), plasticizer loading (0.12 and 0.24% w/w); and loading of prilocaine and lidocaine hydrochlorides combined at 1:1 ratio (0 and 47 mg/cm2) in the mechanical properties of buccal films. Methods: A quality by design (QbD) approach based on a full factorial design (3 x 23) and complementarily multivariate statistical tools i.e., principal component analysis (PCA), response surface methodology (RSM), and correlation matrix were used in this pursuit. The thickness, elongation at break, tensile strength, force at break, and Young`s modulus of the anesthetic buccal films obtained by solvent casting were assessed. Results: The QbD, PCA and RSM altogether demonstrated that all studied formulation variables, mainly the drug loading, affect the mechanical properties of the films at different significance levels. The multivariate analysis yielded the modelling of elongation at break, tensile strength, and force at break, which significantly correlated with each other. The drugs exerted a synergic plasticizing effect on the films, and the use of HPMC K100 LV (with greater hydroxypropyl substitution degree and viscosity) and mannitol favored their elasticity and resistance. Furthermore, the majority of the films fulfilled the requirements for buccal administration due to their softness and mechanical resistance. Conclusion: Mannitol is suitable plasticizer for manufacturing HPMC anesthetic buccal films with improved mechanical properties. These results are a step forward in the rational development of formulations for the replacement of needles in dentistry

8.
Rev. bras. enferm ; 74(2): e20200195, 2021. tab
Article in English | LILACS-Express | LILACS, BDENF | ID: biblio-1251155

ABSTRACT

ABSTRACT Objectives: to construct and assess bundle content for the prevention and management of complications in neutropenia in cancer patients. Methods: a methodological study developed in four stages: scoping review; bundle construction; material assessment by experts (developed according to Pasquali's psychometry); pilot test in a High Complexity Assistance Unit in Oncology. For content assessment, the Delphi technique was applied in two rounds and those items with Content Validation Coefficient (CVC)> 0.78 and agreement> 80.0% were considered valid. Data were analyzed using descriptive and inferential statistics. Results: all bundle requirements reached agreement between judges above 80.0%, in addition to statistically significant levels of assessment. At the end of the Delphi technique, bundle was significantly valid with CVC = 0.92 and CVC = 0.93, respectively. Conclusions: bundle content proved to be valid and highly credible.


RESUMEN Objetivos: construir y evaluar el contenido de un bundle para la prevención y el manejo de complicaciones en pacientes con cáncer neutropénico. Métodos: estudio metodológico, construido en cuatro etapas: revisión del alcance; construcción de bundle; evaluación del material por especialistas (desarrollado según la psicometría de Pasquali); prueba piloto en una Unidad Asistencial de Alta Complejidad en Oncología. Para la evaluación de contenido se aplicó la técnica Delphi en dos rondas, considerándose válidos aquellos ítems con Coeficiente de Validación de Contenido (CVC)> 0,78 y consenso> 80,0%. Los datos se analizaron mediante estadística descriptiva e inferencial. Resultados: todos los requisitos del bundle alcanzaron acuerdos entre jueces superiores al 80,0%, además de niveles de evaluación estadísticamente significativos. Al final de la técnica Delphi, el bundle fue significativamente válido con CVC = 0,92 y CVC = 0,93, respectivamente. Conclusiones: el contenido del bundle demostró ser válido y tener una alta credibilidad.


RESUMO Objetivos: construir e avaliar o conteúdo de um bundle para a prevenção e manejo das complicações de pacientes oncológicos neutropênicos. Métodos: estudo metodológico, construído em quatro etapas: scoping review; construção do bundle; avaliação do material por especialistas (desenvolvido segundo a psicometria de Pasquali); teste piloto em uma Unidade de Assistência de Alta Complexidade em Oncologia. Para avaliação de conteúdo, aplicou-se a técnica de Delphi em duas rodadas, e considerou-se válidos aqueles itens com Coeficiente de Validação de Conteúdo (CVC) >0,78 e consenso >80,0%. Os dados foram analisados por meio da estatística descritiva e inferencial. Resultados: todos os requisitos do bundle alcançaram concordância entre os juízes superior a 80,0%, além de níveis de avaliação estatisticamente significativos. Ao final da técnica de Delphi, o bundle se apresentou expressivamente válido com CVC = 0,92 e CVC = 0,93, respectivamente. Conclusões: o conteúdo do bundle demonstrou ser válido e ter alta credibilidade.

10.
Article in Chinese | WPRIM | ID: wpr-876050

ABSTRACT

@#[Abstract] Objective: To explore the effect of anti-ENO1 (enolase 1) antibody and metformin (MET) treatment on the proliferation, migration, invasion and stemness of cetuximab (CTX) -resistant non-small cell lung cancer (NSCLC) cells through targeting cancer stem cells and the possible mechanism. Methods: 10 mmol/L MET combined with 40 μg/ml anti-ENO1 antibody was used to treat CTX(35 µg/ml)-resistant NSCLC A549 cells for 4 d, and the effects of combined treatment on A549 cells were detected with proliferation experiment, colony formation assay, migration and invasion experiments and methylcellulose ball formation experiment. In the meanwhile, FCM was used to detect the effects of CTX, MET and anti-ENO1 antibody single-drug treatment as well as the three-drug combination treatment on ALDH+ and CD44+ lung cancer stem cell subsets. Results: CTX combined with MET and anti-ENO1 antibody treatment significantly inhibited the proliferation, migration, invasion and self-renewal capacity of A549 cells. FCM analysis found that MET could significantly inhibit ALDH+ stem cell subpopulations, while anti-ENO1 antibody could significantly inhibit CD44+ stem cell subpopulations, and the three-drug combination treatment could simultaneously suppress ALDH+ and CD44+ stem cell subpopulations. Conclusion: MET and anti-ENO1 antibody respectively target ALDH+ and CD44+ cancer stem cell subsets, and the combined treatment of MET and anti-ENO1 antibody can effectively reverse the resistance of A549 cells to CTX, and thereby more effectively inhibiting stemness, proliferation, metastasis of A549 cells and tumor recurrence.

11.
Journal of Clinical Hepatology ; (12): 925-930, 2021.
Article in Chinese | WPRIM | ID: wpr-875904

ABSTRACT

Hepatocellular carcinoma (HCC) is one of the most common malignant tumors, and its features of insidious onset, rapid development, and high recurrence bring great challenges to the long-term survival of HCC patients. Molecular-targeted drugs and immune checkpoint inhibitors have become the research hotspots in the treatment of HCC, and a large number of clinical trials have found that combined therapy has achieved a good clinical effect. This article mainly introduces the application of combined therapy with molecular-targeted drugs and immune checkpoint inhibitors and other combined therapies in HCC and points out that combined therapy related to systemic therapy or local therapy has become the latest research hotspot in HCC treatment.

12.
Acta Pharmaceutica Sinica ; (12): 374-382, 2021.
Article in Chinese | WPRIM | ID: wpr-873780

ABSTRACT

RAS, as a well-known proto-oncogene, is the most frequently mutated oncogene in human cancers, yet tremendous efforts over the past 30 years have failed to develop effective therapies for RAS-mutant cancer. Recently, specifically targeting the KRAS-G12C mutant, a frequently occurring KRAS mutation in human cancers, has shown promise in conquering KRAS-mutant cancers, and has inspired interest in this direction. We herein review the very recent progress achieved in the development of covalent inhibitors towards KRAS-G12C mutant, in combinational therapies and in proteolysis-targeting chimeras (PROTACs)-based approaches to disrupt KRAS-G12C protein. We provide insights for drug discovery against KRAS-G12C-mutated tumors and discuss the potential challenges in this field.

13.
Article in Chinese | WPRIM | ID: wpr-873584

ABSTRACT

@#In order to explore the therapeutic effects and preliminary mechanism of gypenosides (GP) on hypercholesterolemia, as well as the protective effect on liver injury induced by high-dose simvastatin and high cholesterol diet (HCD), the hypercholesterolemia model of golden hamster was established by high cholesterol diet. The experimental animals were divided into blank group, model group, GP low and high dose groups (60 mg/kg, 120 mg/kg), simvastatin group (10 mg/kg), and GP high dose combined with simvastatin group (120 mg/kg + 10 mg/kg).The efficacy was investigated through dynamic monitoring serum cholesterol and liver function related indexes after drug treatment of 14 and 23 days. The results showed that GP could significantly reduce the levels of serum low density lipoprotein cholesterol (LDL-C), total cholesterol (TC), triglyceride (TG), alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP), increase the level of serum high density lipoprotein cholesterol (HDL-C), and reduce the secretion of PCSK9. It is suggested that GP has a good therapeutic effect on HCD diet-induced hypercholesterolemia hamsters, which may be related to its inhibition of PCSK9 secretion. In addition, GP can significantly ameliorate liver damage caused by HCD diet and high-dose simvastatin. These findings provide a scientific basis and useful reference for the combination of GP and statins to reduce toxicity and increase efficacy.

14.
China Pharmacy ; (12): 339-345, 2021.
Article in Chinese | WPRIM | ID: wpr-872687

ABSTRACT

OBJECTIVE:To systematically evaluate therape utic efficacy of Yixinshu preparation combined with conventional treatment plan for angina pectoris of coronary heart disease (CHD)vs. conventional treatment plan ,and to provide evidence-based reference for clinical drug use. METHODS :Retrieved from Cochrane library ,PubMed,Embase,CBM,CNKI,Wanfang database and VIP ,randomized controlled trials (RCTs)about Yixinshu preparation combined with conventional treatment plan (trial group ) versus conventional treatment plan (control group )for angina pectoris of coronary heart disease were collected during Jan. 1st in 2012 to Oct. 1st in 2020. After extracting the data ,the quality of included studies were evaluated with Cochrane System Evaluator Handbook 5.3;Meta-analysis was performed by using Stata 15.0 software. RESULTS :A total of 23 RCTs involving 2 853 subjects were included. The results of Meta-analysis showed that the efficacy of angina pectoris [RR =0.92,95%CI(0.87,0.97),P<0.05], the times of angina pectoris attack [SMD =-0.98,95%CI(-1.09,-0.87),P<0.05],the duration of angina pectoris [SMD = -0.77,95%CI(-0.88,-0.67),P<0.05],ECG curative effect [RR =0.91,95%CI(0.84,0.98),P<0.05] and the improve rate of TCM syndromes [RR =0.89,95%CI(0.85,0.94),P<0.05] in trial group were all better than control group ,with statistical significance. CONCLUSIONS :Yixinshu preparation combined with conventional treatment plan is better than conventional treatment plan in terms of improving therapeutic efficacy of angina pectoris and ECG ,TCM syndrome improvement rate ,as well as reducing the frequency of angina pectoris attack ,angina pectoris attack duration.

15.
Article in Chinese | WPRIM | ID: wpr-837458

ABSTRACT

Objective@#To investigate the in vitro interaction of amphotericin B (AmB) and fluconazole (FLC) at different time points and provide a reference for clinical combined treatment therapy of polyenes and azoles.@*Methods@#Candida albicans ATCC SC5314 was used in the study. The minimum inhibitory concentration (MIC) of antifungal drugs was determined using the double microdilution broth method. The same amount of DMSO and low concentration drugs were added to the DMSO treatment group at different time points (0, 2, 4, 6 h) to determine whether the solvent background environment affected the growth of Candida albicans. In the experimental group, to observe the effect of low concentration AmB on the antifungal effect of FLC, the experimental group was administered a low concentration of AmB (0.25 μg/mL or 0.125 μg/mL) added to FLC at different time points (0, 2, 4, 6 h), and the same amount of DMSO was added to FLC at different time points in the single drug control group. In the experimental group, to observe the effect of low concentration of FLC on the antifungal effect of AmB, the experimental group was administered a low concentration of FLC (0.06 μg/mL or 0.03 μg/mL) in AmB at different time points (0, 2, 4, 6 h), and the same amount of DMSO was used at different time points as the single drug control group. In the solvent group, the same amounts of DMSO and low concentration drugs were added at different time points. After resuscitation, the colony growth of each solvent control group, single-drug control group and experimental group was observed to evaluate the interaction between drug concentration and time. Compared with the AmB single-drug control group, there was no significant change in the experimental group with added low concentrations of FLC at 0 h (F=0.27, P=0.775), which was 1.74-1.93 times that of the control group at 2-4 h (P < 0.001), and there was no significant difference in colony count after 6 h (P > 0.05). @*Results@# Under the treatment of FLC at an inhibitory concentration (0.25 μg/ml), adding low concentration AMB did not affect the antifungal effect of FLC, and the multiple of colony count differences were not significant (P > 0.05).@*Conclusion@#The interaction between AmB and FLC was time-dependent. At the early stage (0 h), the interaction effect between fluconazole and amphotericin B was not clear. The fungicidal effect of AmB could be weakened when FLC was supplied at 2-4 h, and the effect of FLC on AmB was absent after 6 h.

16.
Chinese Journal of Biotechnology ; (12): 2703-2718, 2021.
Article in Chinese | WPRIM | ID: wpr-887835

ABSTRACT

Plants with alien genomic components (alien chromosomes / chromosomal fragments / genes) are important materials for genomic research and crop improvement. To date, four strategies based on trait observation, chromosome analysis, specific proteins, and DNA sequences have been developed for the identification of alien genomic components. Among them, DNA sequence-based molecular markers are mainly used to identify alien genomic components. This review summarized several molecular markers for identification of alien genomic components in wheat, cabbage and other important crops. We also compared the characteristics of nine common molecular markers, such as simple sequence repeat (SSR), insertion-deletion (InDel) and single nucleotide polymorphism (SNP). In general, the accuracy of using a combination of different identification methods is higher than using a single identification method. We analyzed the application of different combination of identification methods, and provided the best combination for wheat, brassica and other crops. High-throughput detection can be easily achieved by using the new generation molecular markers such as InDel and SNP, which can be used to determine the precise localization of alien introgression genes. To increase the identification efficiency, other new identification methods, such as microarray comparative genomic hybridization (array-CGH) and suppression subtractive hybridization (SSH), may also be included.


Subject(s)
Chromosomes, Plant , Comparative Genomic Hybridization , Genome, Plant/genetics , Genomics , Triticum/genetics
17.
Article in Chinese | WPRIM | ID: wpr-887484

ABSTRACT

This paper introduces the specific clinical experience of professor


Subject(s)
Acupuncture Points , Acupuncture Therapy , Facial Paralysis/drug therapy , Herbal Medicine , Humans , Moxibustion
18.
Article in Chinese | WPRIM | ID: wpr-886691

ABSTRACT

@#To investigate the effects of sanguinarine (Sang) combined with cisplatin (Cis) in accelerating the apoptosis of bladder cancer EJ cells, CCK-8 method was used to detect the proliferation of bladder cancer EJ cells treated with different concentrations of Sang with the IC50 values calculated. Annexin V FITC/PI method was used to detect cell apoptosis in the control group, Sang group, Cis group and the combination group. Flow cytometer was used to detect cell cycle arrested. Western blot was used to detect the influence of Bcl-2 expression in the control group, Sang group, Cis group and the combination group. Nude mouse subcutaneous tumor model was constructed to verify that the combination group could accelerate the apoptosis of bladder cancer EJ cells and reduce the side-effects on mice. The safety of the Sang was evaluated by HE staining of vital organs in mice. In vitro, Sang could significantly inhibit the proliferation of EJ cells. Compared with the control group, the number of apoptosis EJ cells in the combination group was significantly increased (P < 0.05), and more cells were arrested in G2/M phase. The expression of Bcl-2 was significantly down-regulated in the combination group (P <0.001). In vivo, compared with the control group, the tumor growth was significantly slower, and a large number of apoptotic cells were inspected (P < 0.05) of the combination group. The side effects of cisplatin were reduced in the combination group. Sang has high biosafety and little side effect. Combined Sang and Cis can increase cell cycle G2/M block, down-regulate Bcl-2 expression, promote cell apoptosis and inhibit tumor growth.

19.
Article in Chinese | WPRIM | ID: wpr-882226

ABSTRACT

@#Oral submucous fibrosis is a chronic, occult and progressive potentially malignant disease that seriously affects the oral function and quality of life of patients. The oral burning sensation and limitation of mouth opening are the main reasons for patients to see a doctor. At present, the main treatment for oral submucosal fibrosis is still drug therapy. To provide ideas and references for the clinical treatment of oral submucosal fibrosis, this article reviews the mechanism, therapeutic effect and characteristics of common Chinese and Western medicine in the treatment of oral submucosal fibrosis. The results of the literature review show that salvia miltiorrhiza, aloe, lycopene, curcumin and other traditional Chinese medicine and Western medicine are effective in the treatment of oral submucosal fibrosis; in addition, Taohong Siwu Decoction combined with Western medicine and other combinations of traditional Chinese and Western medicine are effective and reduce side effects, and clinicians can choose appropriate drugs according to the patient’s main symptoms and general condition. In the future, researchers can study more combinations of traditional Chinese and Western medicine to treat oral submucosal fibrosis.

20.
Acta Pharmaceutica Sinica ; (12): 1551-1561, 2021.
Article in Chinese | WPRIM | ID: wpr-881549

ABSTRACT

Traditional antitumor drugs are cytotoxic chemotherapeutic drugs that can directly kill tumor cells and inhibit the growth and proliferation of tumor cells. Modern chemotherapy for tumors was initiated by use of nitrogen mustard to treat lymphomas in 1946, which was derived from mustard gas. Starting with nitrogen mustard, many kinds of anti-tumor drugs, including alkylating agents, anti-metabolism drugs, anti-tumor antibiotics, and anti-tumor plant drugs, have been successively developed for clinical treatment. Traditional antitumor drugs are the cornerstone of tumor chemotherapy and play important roles in the comprehensive treatment and neoadjuvant therapy of malignant tumors. In recent years, the combination of traditional antitumor drugs with molecular targeted therapy, immunotherapy, and radiotherapy has greatly improved the survival rate of tumor patients. With the deepening understanding of tumor genome as well as tumor initiation and promotion, the concepts of precision medicine and individualized treatment have been proposed and achieved success in clinical practice. In this context, the strategies leading to personalized therapy with traditional anti-tumor drugs also need to be further studied and optimized. This review summarized the recent clinical application and research progress of traditional antitumor drugs.

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