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1.
J Opt Soc Am A Opt Image Sci Vis ; 40(10): 1841-1848, 2023 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-37855539

RESUMO

To address problems such as the lack of accuracy in acquiring depth maps for dynamic fish 3D measurements by usual binocular vision or a time-of-flight (TOF) depth camera, a TOF-assisted binocular vision depth acquisition algorithm is used to obtain high-quality depth maps. The TOF depth energy function is designed to guide the binocular stereo matching process, which improves the correct matching rate of binocular matching in low-texture regions; the TOF and binocular stereo matching confidence weighting functions are designed to achieve the fusion of the two at pixel level to improve the matching quality of fish in the occluded overlapping regions. The experimental results show that the TOF-assisted binocular vision system improves the accuracy of fish size measurement compared to single binocular vision while reducing the measurement error when the fish body has a significant inclination along the depth axis.

2.
Global Health ; 16(1): 99, 2020 10 15.
Artigo em Inglês | MEDLINE | ID: mdl-33059720

RESUMO

BACKGROUND: Due to economic development and an increase in the aging population, the demand for medical resources is increasing. A good doctor-patient relationship (DPR) can optimize patients' medical experience and improve treatment efficiency. The DPR, however, is currently in crisis in China. To explore ways to improve DPR, this study assessed the views on the status of the DPR, medical services, and the general situation of medical work among medical personnel (MP) and the general population (GP). METHODS: This cross-sectional study, conducted between December 2019 and March 2020, targeted the MP and the GP in Nanjing City, Jiangsu Province, and Zhengzhou City, Henan Province. A total of 154 MP and 329 GP answered a self-administered questionnaire through Questionnaire Star and WeChat apps. Wilcoxon's Sign Rank Test, Chi-square test, and frequency distributions and percentages were used to process the data. RESULTS: Only 11.04% of the MP and 14.89% of the GP believed that the current DPR was harmonious. Moreover, 54.55% of the MP and 71.12% of the GP believed that the medical industry was a service industry. While 14.29% of the MP and 64.44% of the GP thought medical staff earned high salaries, 19.48% of the MP and 47.11% of the GP wanted their children to be in the medical industry. The recognition of the current status of the DPR did not affect the GP's preference for their children's practice (p < 0.05). Most MPs hoped to improve salaries (40.26%), followed by safety (17.53%) and social status (12.99%); only 8.44% of the MP wanted to improve the DPR. CONCLUSION: The MP's and GP's views on the current status of DPR, the importance of medical service attitudes, and the general sense of the medical industry were similar. However, there was a significant difference in the perception of the nature of medical services and the income of the people employed in the medical industry between the two groups. Balancing the expectations of patients in the medical industry and increasing public awareness of the actual situation in the medical industry may be a feasible way to improve the DPR.


Assuntos
Pessoal de Saúde , Relações Médico-Paciente , Atitude do Pessoal de Saúde , China , Estudos Transversais , Humanos , Inquéritos e Questionários
3.
Cell Mol Biol (Noisy-le-grand) ; 65(3): 109-113, 2019 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-30942163

RESUMO

With high incidence and mortality, gastric cancer seriously threatened human's life. It is arduous and necessary to investigate its pathogenesis and dig effective drugs. In this study, we explored the role of 6-Gingerol (GI), a natural active ingredient, in treating gastric cancer cells. MTT assay and colony formation assay were utilized to confirmed that GI can control the proliferation of gastric cancer cells, which is time and concentration-dependent to some extent. The Annexin V-FITC/PI staining results by flow cytometry reveal that GI induces the apoptosis of gastric cancer cells. And a study on further pathways by western blot shows that GI brings about cell apoptosis by inhibiting the activation of STAT3. GI therefore may be a good candidate for treating gastric cancer.

4.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 36(9): 1112-1118, 2016 Sep.
Artigo em Zh | MEDLINE | ID: mdl-30645853

RESUMO

Objective To observe the mechanism of Xiaoai Jiedu Recipe (XJR) for fighting a- gainst hepatoma by detecting tumor miRNAs expression profiles in H22tumor-bearing mice. Methods To- tally 50 H22tumor-bearing mice were randomly divided into the model group, the low dose XJR group, the medium dose XJR group, the high dose XJR group, the Cisplatin group, 10 in each group. Different expressions of tumor tissues in H22 tumor-bearing mice under light microscope were detected using histopathological technique. Differentially expressed miRNAs of tumor tissue in H22tumor-bearing mice were detected by using miRNA chip technique. Differentially expressed miRNAs associated with antitumor mechanism of XJR were found out by statistical analysis. Results Histopathological results showed that reduced pathologic mitosis, smaller cancer cells, and obviously enhanced anti-cancer effect along with increased XJP dose. Results of miRNA chip analyses indicated XJP could significantly up-regulate the ex- pressions of miRNAs, such as miR-1298-5p, miR-874-3p, miR-721, miR-298-5p, miR-551b-5p, miR-346- 5p, miR-105, and so on. It could also down-regulate the expressions of miR-24-3p, miR-3963, miR-127- 3p, miR-434-5p, miR-1187, miR-468-3p, miR-221-5p, and miR-6695-5p. Conclusion XJP could fight a- gainst tumor possibly by regulating expressions of multiple miRNAs.


Assuntos
Medicamentos de Ervas Chinesas , MicroRNAs , Análise de Sequência com Séries de Oligonucleotídeos , Animais , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/metabolismo , Medicamentos de Ervas Chinesas/farmacologia , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/metabolismo , Camundongos , MicroRNAs/metabolismo
5.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 33(1): 119-24, 2013 Jan.
Artigo em Zh | MEDLINE | ID: mdl-23596801

RESUMO

The integration of Chinese medicine (CM) and Western medicine (WM) is the only way for the development of medicine, and it is the best form for unifying systems theory and reductionism. In this paper, systems biology and its application in medical research were discussed. The authors put forward that systems biology may possibly interpret the scientific connotation of the complex theoretic systems of CM, which will make WM to well know the human body and disease. We hold that systems biology is a bridge of integrated CM and WM.


Assuntos
Medicina Integrativa , Biologia de Sistemas , Medicina Tradicional Chinesa
6.
Heliyon ; 9(11): e20653, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38027682

RESUMO

Gastrointestinal cancers account for 11.6 % of all cancers, and are the second most frequently diagnosed type of cancer worldwide. Traditional Chinese medicine (TCM), together with Western medicine or alone, has unique advantages for the prevention and treatment of cancers, including gastrointestinal cancers. Syndrome differentiation and treatment are basic characteristics of the theoretical system of TCM. TCM syndromes are the result of the differentiation of the syndrome and the basis of treatment. Genomics, transcriptomics, proteomics, metabolomics, intestinal microbiota, and serology, generated around the central law, are used to study the biological basis of TCM syndromes in gastrointestinal cancers. This review summarizes current research on the biological basis of TCM syndrome in gastrointestinal cancers and provides useful references for future research on TCM syndrome in gastrointestinal cancers.

7.
Front Oncol ; 13: 1184786, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37427121

RESUMO

Introduction: Xiaoai Jiedu recipe (XJR), a classical prescription of traditional Chinese medicine (TCM), has been clinically proven to be effective in ameliorating colorectal cancer (CRC). However, its exact mechanism of action is still elusive, limiting its clinical application and promotion to a certain extent. This study aims to evaluate the effect of XJR on CRC and further illustrate mechanism underlying its action. Methods: We investigated the anti-tumor efficacy of XJR in vitro and vivo experiments. An integrated 16S rRNA gene sequencing and UPLC-MS based metabolomics approach were performed to explore possible mechanism of XJR anti-CRC on the gut microbiota and serum metabolic profiles. The correlation between altered gut microbiota and disturbed serum metabolites was investigated using Pearson's correlation analysis. Results: XJR effectively displayed anti-CRC effect both in vitro and in vivo. The abundance of aggressive bacteria such as Bacteroidetes, Bacteroides, and Prevotellaceae decreased, while the levels of beneficial bacteria increased (Firmicutes, Roseburia, and Actinobacteria). Metabolomics analysis identified 12 potential metabolic pathways and 50 serum metabolites with different abundances possibly affected by XJR. Correlation analysis showed that the relative abundance of aggressive bacteria was positively correlated with the levels of Arachidonic acid, Adrenic acid, 15(S)-HpETE, DL-Arginine, and Lysopc 18:2, which was different from the beneficial bacteria. Discussion: The regulation of gut microbiota and related metabolites may be potential breakthrough point to elucidate the mechanism of XJR in the treatment of the CRC. The strategy employed would provide theoretical basis for clinical application of TCM.

8.
Front Genet ; 14: 1100909, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37470034

RESUMO

Objective: To estimate the survival and prognosis of patients with thyroid carcinoma (THCA) based on the Long non-coding RNA (lncRNA) traits linked to cuproptosis and to investigate the connection between the immunological spectrum of THCA and medication sensitivity. Methods: RNA-Seq data and clinical information for THCA were obtained from the Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases. We built a risk prognosis model by identifying and excluding lncRNAs associated with cuproptosis using Cox regression and LASSO methods. Both possible biological and immune infiltration functions were investigated using Principal Component Analysis (PCA), Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and immunoassays. The sensitivity of the immune response to possible THCA medicines was assessed using ratings for tumor immune dysfunction and exclusion (TIDE) and tumor mutational burden (TMB). Results: Seven cuproptosis-related lncRNAs were used to construct our prognostic prediction model: AC108704.1, DIO3OS, AL157388.1, AL138767.3, STARD13-AS, AC008532.1, and PLBD1-AS1. Using data from TCGA's training, testing, and all groups, Kaplan-Meier and ROC curves demonstrated this feature's adequate predictive validity. Different clinical characteristics have varying effects on cuproptosis-related lncRNA risk models. Further analysis of immune cell infiltration and single sample Gene Set Enrichment Analysis (ssGSEA) supported the possibility that cuproptosis-associated lncRNAs and THCA tumor immunity were closely connected. Significantly, individuals with THCA showed a considerable decline in survival owing to the superposition effect of patients in the high-risk category and high TMB. Additionally, the low-risk group had a higher TIDE score compared with the high-risk group, indicating that these patients had suboptimal immune checkpoint blocking responses. To ensure the accuracy and reliability of our results, we further verified them using several GEO databases. Conclusion: The clinical and risk aspects of cuproptosis-related lncRNAs may aid in determining the prognosis of patients with THCA and improving therapeutic choices.

9.
Int Immunopharmacol ; 119: 110237, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37121112

RESUMO

BACKGROUND: Impaired intestinal barrier and immune dysfunction promote the development of type 2 diabetes (T2D). Group 3 innate lymphoid cells (ILC3s), which are enriched in the intestinal lamina propria, are key for intestinal barrier integrity. However, there is a paucity of data on circulating ILC3s in patients with T2D. PURPOSE: To examine the characteristics of ILC3s in patients with T2D and identify the relationship between ILC3s and clinical indicators of T2D. METHODS: Fifty-nine patients with T2D and thirty controls were enrolled in this retrospective study. Peripheral blood mononuclear cells were isolated and analyzed by flow cytometry and plasma cytokine levels were measured by enzyme-linked immunosorbent assays. RESULTS: The proportion of circulating ILC3s in the T2D group was significantly lower than that in controls and showed a negative correlation with fasting glucose and glycated hemoglobin and a positive correlation with granulocyte-macrophage colony-stimulating factor (GM-CSF). Similarly, the proportion of circulating integrin α4+ ILC3s was also significantly lower in the T2D group and showed a negative correlation with fasting glucose and glycated hemoglobin and a positive correlation with GM-CSF. Moreover, the level of circulating integrin α4+ ILC3s showed a positive correlation with the proportion of circulating dendritic cells (DCs), which was also decreased in patients with T2D and positively associated with GM-CSF. CONCLUSION: ILC3s, especially integrin α4+ ILC3s, were decreased in patients with T2D and showed a negative correlation with disease severity. These cell subsets may delay the progression of T2D by promoting DC differentiation via the secretion of GM-CSF.


Assuntos
Diabetes Mellitus Tipo 2 , Fator Estimulador de Colônias de Granulócitos e Macrófagos , Linfócitos , Humanos , Hemoglobinas Glicadas , Imunidade Inata , Integrina alfa4 , Leucócitos Mononucleares , Estudos Retrospectivos
10.
Biomed Pharmacother ; 165: 115040, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37364479

RESUMO

Colorectal cancer (CRC) is one of highly prevalent cancer. Immunotherapy with immune checkpoint inhibitors (ICIs) has dramatically changed the landscape of treatment for many advanced cancers, but CRC still exhibits suboptimal response to immunotherapy. The gut microbiota can affect both anti-tumor and pro-tumor immune responses, and further modulate the efficacy of cancer immunotherapy, particularly in the context of therapy with ICIs. Therefore, a deeper understanding of how the gut microbiota modulates immune responses is crucial to improve the outcomes of CRC patients receiving immunotherapy and to overcome resistance in nonresponders. The present review aims to describe the relationship between the gut microbiota, CRC, and antitumor immune responses, with a particular focus on key studies and recent findings on the effect of the gut microbiota on the antitumor immune activity. We also discuss the potential mechanisms by which the gut microbiota influences host antitumor immune responses as well as the prospective role of intestinal flora in CRC treatment. Furthermore, the therapeutic potential and limitations of different modulation strategies for the gut microbiota are also discussed. These insights may facilitate to better comprehend the interplay between the gut microbiota and the antitumor immune responses of CRC patients and provide new research pathways to enhance immunotherapy efficacy and expand the patient population that could be benefited by immunotherapy.


Assuntos
Neoplasias Colorretais , Microbioma Gastrointestinal , Humanos , Imunoterapia , Inibidores de Checkpoint Imunológico , Neoplasias Colorretais/terapia
11.
Front Immunol ; 14: 1323115, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38173726

RESUMO

Background: Cancer-associated fibroblasts (CAFs) represent the predominant stromal component within the tumour microenvironment (TME), exhibiting considerable heterogeneity and plasticity that significantly impact immune response and metabolic reprogramming within the TME, thereby influencing tumour progression. Consequently, investigating CAFs is of utmost importance. The objective of this study is to employ bibliometric analysis in order to evaluate the current state of research on CAFs and predict future areas of research and emerging trends. Methods: Conduct a comprehensive search for scholarly publications within the Web of Science Core Collection database, encompassing the time period from January 1, 2001, to December 31, 2022. Apply VOSviewer, CiteSpace, R software and Microsoft Excel for bibliometric analysis and visualisation. Results: This study involved a comprehensive analysis of 5,925 publications authored by 33,628 individuals affiliated with 4,978 institutions across 79 countries/regions. These publications were published in 908 journals, covering 14,495 keywords and 203,947 references. Notably, there was a significant increase in articles published between 2019 and 2022. China had the highest count of articles, while the United States emerged as the most frequently cited country. The primary research institutions in this field were Shanghai Jiao Tong University, Harvard University, and the University of Texas MD Anderson Cancer Center. Sotgia, Federica and Lisanti, Michael P from the University of Manchester, and Martinet, Wim from the University of Antwerp were the most prolific and highly cited authors. The journal Cancers had the highest number of publications, while Cancer Research was the most frequently cited journal. Molecular, biology, immunology, medicine and genetics were the main research disciplines in the field of CAFs. Key directions in CAFs research encompassed the study of transforming growth factor-ß, Fibroblast Activation Protein, breast cancer, as well as growth and metastasis. The findings from the analysis of keyword co-occurrence and literature co-citation have revealed several emerging hotspots and trends within the field of CAFs. These include STAT3, multidrug resistance, pancreatic ductal adenocarcinoma, pan-cancer analysis, preclinical evaluation, ionizing radiation, and gold nanoparticles. Conclusion: Targeting CAFs is anticipated to be a novel and effective strategy for cancer treatment. This study provides a comprehensive overview of the existing research on CAFs from 2001 to 2022, utilizing bibliometric analysis. The study identified the prominent areas of investigation and anticipated future research directions, with the aim of providing valuable insights and recommendations for future studies in the field of CAFs.


Assuntos
Fibroblastos Associados a Câncer , Nanopartículas Metálicas , Neoplasias Pancreáticas , Humanos , China , Ouro , Bibliometria , Microambiente Tumoral
12.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 32(7): 990-3, 2012 Jul.
Artigo em Zh | MEDLINE | ID: mdl-23019963

RESUMO

Pathogenesis is the core of the theoretical system in Chinese medicine (CM). Pathogenesis research is the breakthrough of the innovation and development of CM theories. Proteomics and CM pathogenesis were amazingly similar in aspects of integrity, dynamics, space, and complexity. It is of great significance using proteomics methods in studying CM pathogenesis essence and evolution laws, exploring the mechanisms of classical prescriptions or recipes with therapeutic efficacy, and promoting the modernization of CM.


Assuntos
Medicina Tradicional Chinesa , Proteômica , Pesquisa
13.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 32(6): 831-5, 2012 Jun.
Artigo em Zh | MEDLINE | ID: mdl-22978115

RESUMO

Metabonomics, a newly developing subject secondary to genomics, transcriptomics, and proteomics, is an important constituent part of systems biology. It is believed to be the final direction of the systems biology. It can be directly applied to understand the physiological and biochemical states by its "metabolome profile" as a whole. Therefore, it can provide a huge amount of information different from those originating from other "omics". In the modernization of Chinese materia medica research, the application of metabonomics methods and technologies has a broad potential for future development. Especially it is of important theoretical significance and application value in holistic efficacies evaluation, active ingredients studies, and safety research of Chinese materia medica.


Assuntos
Medicamentos de Ervas Chinesas , Metabolômica , Medicamentos de Ervas Chinesas/efeitos adversos , Medicamentos de Ervas Chinesas/farmacologia , Materia Medica/efeitos adversos , Materia Medica/farmacologia , Proteômica
14.
Front Oncol ; 12: 915498, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36212428

RESUMO

Introduction: Wenzi Jiedu Recipe (WJR), traditional Chinese medicine (TCM) formula, has been proven to be clinically useful in the treatment of colorectal cancer (CRC). However, its underlying mechanisms are still elusive, which limits its wider application. Thus, we aimed to evaluate the effect of WJR on CRC and elucidate mechanisms underlying its action. Methods: Network pharmacology was employed to clarify the "herb-active ingredient-target" network of WJR. The 16S rDNA sequencing method was used to analyze the changes of gut microbes mediated by WJR in tumor-bearing mice with CRC. The proportions of CD4+ T cell and CD8+ T cell were measured by flow cytometry. Levels of the cytokines interleukin (IL)-10, interferon (IFN)-γ, and tumor necrosis factor (TNF)-α were assessed by immunohistochemistry and enzyme-linked immunosorbent assay (ELISA). Results: WJR showed significant anti-CRC effects both in vitro and in vivo. Network pharmacology revealed that WJR exerts anti-CRC therapeutic effect on multiple targets and signaling pathways. Gut microbiota analysis revealed that WJR therapy significantly enriched for Oscillibacter and Bacteroides_acidifacien. In particular, we found that WJR significantly increased the proportion of CD8+ T cells and the expression of immune-associated cytokines IL-10, IFN-γ, and TNF-α. Conclusion: The regulation of gut microbiota by WJR may be the breakthrough point to clarify its mechanism of action in the treatment of CRC, and it has a good prospect of clinical application.

15.
Artigo em Inglês | MEDLINE | ID: mdl-36497813

RESUMO

Given the prolonged nature of the COVID-19 pandemic and its long-term psychological impacts, this study aimed to explore how empathy leads to post-traumatic growth (PTG) among Chinese community workers. Guided by the revised PTG model, this study identified the relation between empathy and PTG using a multiple mediation model that included self-disclosure and social support as hypothesized mediators. This study utilized data from 414 Chinese adults aged 20 years or older who completed an online survey during the pandemic. Self-disclosure and social support were measured as mediating variables. The study variables were positively correlated with PTG. Empathy was positively correlated with self-disclosure and social support. After controlling for demographic covariates, the results indicated that self-disclosure and social support mediated the link between empathy and PTG in both parallel and sequential fashion. Empathy, self-disclosure, and social support played important roles in the growth of Chinese community workers. The present findings have been useful in increasing our understanding, policy programs, and interventions by governments or regional bodies to ameliorate community workers' PTG.


Assuntos
COVID-19 , Crescimento Psicológico Pós-Traumático , Adulto , Humanos , Pandemias , População do Leste Asiático , COVID-19/epidemiologia , Apoio Social , Adaptação Psicológica
16.
J Tradit Chin Med ; 41(3): 381-389, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-34114395

RESUMO

OBJECTIVE: To investigate the efficacy of celastrol treatment of hepatocellular carcinoma (HCC) cells in vitro and in vivo and to propose a mechanism of action. METHODS: A human HepG2 liver cancer cell line and a xenograft tumor model were used to investigate the effects of celastrol on HCC in vitro and in vivo. A CCK-8 kit was used to detect cell viability. Flow cytometry and terminal-deoxynucleoitidyl transferase mediated nick end labeling staining were used to detect apoptosis. Western blotting and immunohistochemistry were used to detect the expression of cleaved-caspase-3, cleaved-caspase-8, cleaved-caspase-9, cleaved-PARP, mammalian target of rapamycin (mTOR), and p-mTOR. Hematoxylin-eosin staining was used to observe the tissue morphology. RESULTS: Celastrol decreased the viability of HepG2 cells and induced apoptosis. Western blot assays indicated that celastrol up-regulated cleaved-caspase-3, cleaved-caspase-8, cleaved-caspase-9, and cleaved-PARP by inhibiting the phosphorylation of mTOR in HepG2 cells. Moreover, celastrol inhibited the tumor growth in a xenograft model. Celastrol also induced caspase-dependent apoptosis (up-regulation of cleaved-caspase- 3, -8, -9, and cleaved-PARP) and inhibited the activation of mTOR in vivo. CONCLUSION: Celastrol induces caspase-dependent apoptosis in HCC cells by inhibiting the activation of mTOR.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Apoptose , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/genética , Linhagem Celular , Linhagem Celular Tumoral , Proliferação de Células , Humanos , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/genética , Triterpenos Pentacíclicos , Sirolimo , Serina-Treonina Quinases TOR/genética
17.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 30(8): 884-8, 2010 Aug.
Artigo em Zh | MEDLINE | ID: mdl-21038663

RESUMO

Many Chinese drugs (CHD) have showed their significant effects of integral immune-regulation, and lots of researches have conducted in recent years for exploring their mechanism from different levels, like cytological, molecular and genetic levels. In this paper, the relation between immune-regulation of CHD and Toll-like receptors/nuclear factor-kappaB (TLRs/NF-kappaB) signaling pathway was introduced in brief based upon the achievements of previous researches. It was pointed out that the two are closely related, to explore mechanism of CHD in this way is meaningful not only for further deepening the theoretical understanding of CHD's pharmacological immunoregulation, but also be practically facilitate for enhancing therapeutic efficacy of CHD and developing new CHD.


Assuntos
Adjuvantes Imunológicos/farmacologia , Medicamentos de Ervas Chinesas/farmacologia , NF-kappa B/imunologia , Transdução de Sinais/efeitos dos fármacos , Receptores Toll-Like/imunologia , Humanos
18.
Sci Rep ; 10(1): 16126, 2020 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-32999339

RESUMO

FeMgMn-LDH, a type of potential environmental remediation material, has been synthesized via a co-precipitation method, and its adsorption characteristics for nitrate were investigated in this study. It's shown that the prepared FeMgMn-LDH is a promising adsorbent for anions removal, which has high buffer capacity (final pH remained between 9 and 10) and high reversibility, and can remove nitrate ions selectively though an anion-sieve effect. The maximum amount of nitrate adsorption is 10.56 N-mg g-1 at 25 ℃. The removal rate of nitrate ions can reach 86.26% with the adsorbent dose of 5 g/L in a real water. The competition order of coexisting anions on nitrate adsorption by FeMgMn-LDH is CO32- > PO43- > SO42-. The negative values of ΔG0 (from - 27.796 to - 26.426 kJ mol-1) and ΔH0 (- 6.678 kJ mol-1) indicate that the nitrate adsorption process on the FeMgMn-LDH is spontaneous and exothermic. The main adsorption mechanisms of nitrate removal from aqueous solutions by FeMgMn-LDH are electrostatic attraction and ion exchange.

19.
Artigo em Inglês | MEDLINE | ID: mdl-32774427

RESUMO

Gut microbiota is a diverse consortium of bacteria, fungi, protozoa, and viruses in the gut of all mammals. Gut microbiota remains in steady state under normal conditions. Changes in the internal and external environment may cause gut Microbiota to be out of tune. Malignant tumors are one of the major diseases currently endangering human health. CRC (colorectal cancer) has a significant upward trend in morbidity and mortality in many parts of the world. Technological advances have not yet brought about a breakthrough in the efficacy of CRC. The development of colon cancer is closely related to gut microbiota imbalance. According to more than 60 years of clinical practice, Professor Zhongying Zhou first proposed the pathogenesis theory of "cancerous toxin" in the 1990s and believed that cancerous toxin was a key pathogenesis of tumor development. Under the guidance of the theory of cancerous toxin, combined with clinical practice, Professor Zhou created an effective anticancer Chinese herbal compound, Jiedu Xiaoai Prescription. This paper summarizes recent hotspots related to gut microbiota and the occurrence, development, and prevention of colon cancer at home and abroad. The relationship between gut microbiota and cancerous toxin theory is proposed, and the feasibility of further studying the biological basis of cancerous toxin pathogenesis theory from the perspective of gut microbiota is pointed out.

20.
Artigo em Inglês | MEDLINE | ID: mdl-32082398

RESUMO

In recent years, complementary and alternative medicine (CAM) is more widely known and used globally. This study was the first to investigate undergraduates' attitude toward CAM, and influencing factors and barriers for students to use CAM. Students of five different grades in six universities of China were selected for this study from February to May 2019. First, the participants were divided into two groups based on their majors and fulfilled a previously validated 10-item CAM Health Belief Questionnaire (CHBQ) to evaluate their attitudes toward CAM. Second, the chi-square test was used to analyze the differences between the groups, and correlation analysis was conducted to investigate the relationship of the data between the two groups. Third, we used frequency analysis to identify the types that students wanted to study and the barriers to use CAM. The overall mean score of the CHBQ was 48.87 ± 8.594, which was higher than that in other countries. The students in lower grades had a stronger desire to learn CAM than those in higher grades (89% vs 83%, p < 0.05). "Too time-consuming and bad tastes," "Western medicine was enough," and "lack of relevant knowledge" were found to be the main interruptions for students to use CAM. 82.3% of students wanted CAM to be incorporated into the curriculum and desired to learn more about CAM. 72.3% of the students who had never learned CAM wanted to know more about CAM. 55.5% of the students were willing to recommend CAM. Most undergraduates desired to learn more about CAM. It is necessary to introduce or integrate CAM courses into the present curriculum, and it should be started in the lower grades. We hope this study can provide evidence for the authority in China to make appropriate changes and integrate CAM into the college curriculum.

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