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1.
Support Care Cancer ; 31(3): 153, 2023 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-36746815

RESUMO

BACKGROUND: Cancer-related fatigue is a widely prevalent global public health concern with serious consequences. Increasing evidence suggests the effectiveness of exercise intervention in treating cancer-related fatigue, but there is a lack of a summary of relevant literature on the same to help reach a clear consensus. OBJECTIVE: To summarize evidence regarding the efficacy of exercise interventions to reduce cancer fatigue, as determined in systematic reviews (SRs) and/or meta-analyses (MAs). METHOD: From inception to September 2022, PubMed (1948-2022), Embase (1974-2022), Cochrane Library (1993-2022), CINAHL (1937-2022), Web of Science (1997-2022), China Knowledge Resource Integrated Database (1999-2022), Wanfang Database (1993-2022), and Chinese Biomedical Database (1994-2022) were searched for inclusion to the study. Two reviewers independently extracted the data from the included articles. AMSTAR II was to evaluate the methodological quality of the reviews. RESULTS: A total of 46 systematic reviews were assessed for data on exercise intervention in reducing cancer-related fatigue among cancer patients. In addition, some studies have reported adverse events during the exercise intervention period. The quality of the included systematic review was found to be low or critically low. CONCLUSIONS: The present systematic review of systematic reviews supports exercise intervention for reducing cancer-related fatigue. Further higher-quality studies are warranted to improve the level of evidence for exercise interventions for application in the treatment of cancer-related fatigue.


Assuntos
Fadiga , Neoplasias , Humanos , China , Terapia por Exercício , Fadiga/etiologia , Fadiga/terapia , Neoplasias/complicações , Revisões Sistemáticas como Assunto
2.
J Nanobiotechnology ; 20(1): 272, 2022 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-35690763

RESUMO

BACKGROUND: Acute lung injury (ALI), a severe health-threatening disease, has a risk of causing chronic pulmonary fibrosis. Informative and powerful evidence suggests that inflammation and oxidative stress play a central role in the pathogenesis of ALI. Quercetin is well recognized for its excellent antioxidant and anti-inflammatory properties, which showed great potential for ALI treatment. However, the application of quercetin is often hindered by its low solubility and bioavailability. Therefore, to overcome these challenges, an inhalable quercetin-alginate nanogel (QU-Nanogel) was fabricated, and by this special "material-drug" structure, the solubility and bioavailability of quercetin were significantly enhanced, which could further increase the activity of quercetin and provide a promising therapy for ALI. RESULTS: QU-Nanogel is a novel alginate and quercetin based "material-drug" structural inhalable nanogel, in which quercetin was stabilized by hydrogen bonding to obtain a "co-construct" water-soluble nanogel system, showing antioxidant and anti-inflammatory properties. QU-Nanogel has an even distribution in size of less than 100 nm and good biocompatibility, which shows a stronger protective and antioxidant effect in vitro. Tissue distribution results provided evidence that the QU-Nanogel by ultrasonic aerosol inhalation is a feasible approach to targeted pulmonary drug delivery. Moreover, QU-Nanogel was remarkably reversed ALI rats by relieving oxidative stress damage and acting the down-regulation effects of mRNA and protein expression of inflammation cytokines via ultrasonic aerosol inhalation administration. CONCLUSIONS: In the ALI rat model, this novel nanogel showed an excellent therapeutic effect by ultrasonic aerosol inhalation administration by protecting and reducing pulmonary inflammation, thereby preventing subsequent pulmonary fibrosis. This work demonstrates that this inhalable QU-Nanogel may function as a promising drug delivery strategy in treating ALI.


Assuntos
Lesão Pulmonar Aguda , Fibrose Pulmonar , Lesão Pulmonar Aguda/tratamento farmacológico , Alginatos , Animais , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Antioxidantes/química , Inflamação , Nanogéis , Tamanho da Partícula , Quercetina/farmacologia , Quercetina/uso terapêutico , Ratos
3.
Psychol Health Med ; 26(3): 333-346, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33241941

RESUMO

Chronic pain is a significant public health problem with emotional and disabling factors, which may not completely respond to current medical treatments such as opioids. The systematic review and meta-analysis aimed to examine the effectiveness and safety of MBCT for patients with chronic pain. Database searches of PubMed, Medline, EMBASE, the Cochrane Library, PsycINFO, Web of Science, Scopus and CINAHL up to 15 October 2019. Included studies assessed with the Cochrane risk-of-bias tool. Eight RCTs involved 433 patients, including chronic low back pain, fibromyalgia, migraine, rheumatoid arthritis and mix etiology. MBCT intervention demonstrated a short-term improvement on depression mood [standardized mean difference -0.72; 95% confidence interval = -1.22 to -0.22, p = 0.005] compared with usual care and was associated with short-term improvement in mindfulness compared with non-MBCT [SMD 0.51; 95% CI = 0.01 to 1.01, p = 0.04]. Between-group differences in pain intensity, pain inference and pain acceptance were not significant at short- or long-term follow-up. Compared to active treatments, MBCT intervention not found significant differences in either short- or long-term outcomes. MBCT showed short-term efficacious on depressed mood and mindfulness of chronic pain patients. Longer follow-ups, large sample and rigorous RCTs that can be best understand remaining uncertainties needed.


Assuntos
Dor Crônica/terapia , Terapia Cognitivo-Comportamental/métodos , Atenção Plena , Dor Crônica/psicologia , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do Tratamento
4.
J Tissue Viability ; 30(3): 324-330, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34176736

RESUMO

Here, we aimed to build a nomogram model to estimate the probability of nasogastric tube-associated pressure injuries (NTAPIs) in intensive care unit(ICU)patients. This prospective cohort study included 219ICU patients with nasogastric tube between September 2019 and January 2020.Univariate and multivariate logistic regression analyses were used to develop the nomogram model. The resulting nomogram was tested for calibration, discrimination, and clinical usefulness. Of the included patients, 58 developed NTAPIs, representing an incidence rate of 26.5%. Binary logistic regression analysis revealed that the prediction nomogram included C-reactive protein, vasopressor use, albumin level, nasogastric tube duration, and Sequential Organ Failure Assessment score. The value of these predictors was again confirmed using theLasso regression analysis. Internal validation presented a good discrimination of the nomogram, with an area under the curve value of 0.850, and good calibration (Hosmer-Lemeshow test, P = 0.177). The decision curve analysis also demonstrated preferable net benefit along with the threshold probability in the prediction nomogram. The nomogram model can accurately predict the risk factors for NTAPIs, to formulate intervention strategies as early as possible to reduce NTAPI incidence.


Assuntos
Intubação Gastrointestinal/efeitos adversos , Nomogramas , Úlcera por Pressão/etiologia , Adulto , Idoso , Área Sob a Curva , Índice de Massa Corporal , Estudos de Coortes , Feminino , Humanos , Unidades de Terapia Intensiva/organização & administração , Unidades de Terapia Intensiva/estatística & dados numéricos , Intubação Gastrointestinal/métodos , Intubação Gastrointestinal/normas , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Úlcera por Pressão/fisiopatologia , Desenvolvimento de Programas/métodos , Estudos Prospectivos , Curva ROC , Fatores de Risco
5.
Int Wound J ; 18(6): 777-786, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33960668

RESUMO

The knowledge, attitude, and practice of nurses in intensive care units (ICUs) are determinants for the efficacy of preventing the medical device-related pressure injury (MDRPI). The aim of this study was to determine the level and factors of knowledge, attitude, and practice of nurses' ICUs on preventing medical MDRPI in western China. An annual cross-sectional study was conducted in hospitals of western China from May 2020 to September 2020. Nurses' knowledge and attitudes were assessed using Clinical Nurses Prevention MDRPI of Critically Ill Patients for the Knowledge, Attitude, Practice Assessment Scale. SPSS software version 25.0 and independent t-test, Chi-square, Fisher exact, one-way analysis of variance, and multiple linear regression tests were used for data analysis. A total of 1002 nurses in ICUs from 37 hospitals in Gansu Province, China, participated in this study. The scores of overall KAP, knowledge, attitudes, and practice were 149.17 ± 24.62, 53.83 ± 12.23, 37.24 ± 6.35 and 58.10 ± 9.83, respectively. There was a positive and significant relationship between three variables. Findings revealed that nurses' knowledge score in the Tertiary hospital was higher than scores of other hospitals as 3.840 units. Moreover, the knowledge score and practice score of nurses with bachelor's degree or above were higher than other nurses and are 0.978 and 1.106 units, respectively. Based on the findings, practice of nurses increased by 0.992 units, with a 1-year increase in work experience of nurses in the ICU. The levels of knowledge, attitude, and practice of nurse in ICUs on preventing MDRPI were acceptable. The findings of the study highlight that a comprehensive approach should be conducted for raising the level of knowledge, attitude, and practice of nurses' ICUs on preventing medical MDRPI, as well as improving the quality of care for critically ill patients.


Assuntos
Competência Clínica , Conhecimentos, Atitudes e Prática em Saúde , Enfermeiras e Enfermeiros , Úlcera por Pressão/prevenção & controle , China , Estudos Transversais , Humanos , Unidades de Terapia Intensiva , Inquéritos e Questionários
6.
Parasitology ; 142(3): 473-9, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25140457

RESUMO

The present study aims to evaluate the antiparasitic activity of active components from Costus speciosus against Ichthyophthirius multifiliis. Bioassay-guided fractionation was employed to identify active compounds from C. speciosus yielding 2 bioactive compounds: Gracillin and Zingibernsis newsaponin. In-vitro assays revealed that Gracillin and Zingibernsis newsaponin could be 100% effective against I. multifiliis at concentrations of 0.8 and 4.5 mg L(-1), with median effective concentration (EC50) values of 0.53 and 3.2 mg L(-1), respectively. All protomonts and encysted tomonts were killed when the concentrations of Gracillin and Zingibernsis newsaponin were 1.0 and 5.0 mg L(-1). In-vivo experiments demonstrated that fish treated with Gracillin and Zingibernsis newsaponin at concentrations of 1.0 and 5.0 mg L(-1) carried significantly fewer parasites than the control (P<0.05). Mortality of fish did not occur in the treatment group (Zingibernsis newsaponin at 5.0 mg L(-1)) during the trial, although 100% of untreated fish died. Acute toxicities (LD50) of Gracillin and Zingibernsis newsaponin for grass carp were 1.64 and 20.7 mg L(-1), respectively. These results provided evidence that the 2 compounds can be selected as lead compounds for the development of new drugs against I. multifiliis.


Assuntos
Carpas/parasitologia , Infecções por Cilióforos/veterinária , Costus/química , Doenças dos Peixes/parasitologia , Hymenostomatida/efeitos dos fármacos , Espirostanos/farmacologia , Animais , Infecções por Cilióforos/tratamento farmacológico , Infecções por Cilióforos/mortalidade , Doenças dos Peixes/tratamento farmacológico , Doenças dos Peixes/mortalidade , Carpa Dourada/parasitologia , Extratos Vegetais/farmacologia , Distribuição Aleatória , Saponinas/farmacologia
7.
Adv Wound Care (New Rochelle) ; 13(3): 140-152, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37823751

RESUMO

Significance: Venous leg ulcers (VLUs) are the most common venous disease, mainly presenting as open skin lesions on the legs or feet and are an important concern in clinical care settings. Recent Advances: Comprehensive tactics were employed to search electronic databases PubMed, Embase, guideline databases, and society websites were searched for Clinical Practice Guidelines (CPGs) on VLU care. The basic information, recommendations for the VLUs, methodological quality, and reporting quality of VLU's CPGs were extracted and captured in Excel. The quality of each CPG was independently assessed by four researchers using AGREE II instrument and the RIGHT checklist. Critical Issues: This study included 19 CPGs with a combined 23 recommendations. The assessment of VLUs was summarized based on the recommendations of VLUs in 11 major items; six on VLU's diagnosis and six on therapeutic strategies of VLUs. The identified CPGs were of mixed quality, and the highest score based on the scope and purpose was 82.85 ± 11.66, whereas the lowest mean score based on the editorial independence by AGREE II was 59.93 ± 21.50. Regarding the RIGHT checklist, field one (basic information) had the highest reporting rate (84.33%), whereas field five (review and quality assurance) had the lowest quality of CPGs (41.11%). Future Directions: This evidence map provided new perspectives in the presentation of evidence. In addition, the evidence map collected and evaluated the characteristics of published CPGs. Thus, the evidence map enhances our knowledge and promotes the development of trustworthy CPGs for VLUs.


Assuntos
Úlcera Varicosa , Humanos , Úlcera Varicosa/terapia , , Bases de Dados Factuais
8.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 32(2): 577-582, 2024 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-38660869

RESUMO

OBJECTIVE: To explore the optimal storage condition and time of umbilical cord blood from collection to preparation. METHODS: Collect cord blood samples from 30 healthy newborns, with each new born's umbilical cord blood was divided into two parts on average. One part was stored in cold storage (4 ℃) and the other was stored at room temperature (20-24 ℃). Samples were taken at 24, 36, 48, 60 and 72 h, respectively, total nucleated cells (TNC) count and TNC viability was analyzed. Flow cytometry was used to detect the ratio of viable CD34+ cells to viable CD45+ cells and viability of CD34+ cells, and colony-forming unit-granulocyte-macrophage (CFU-GM) count was performed by hematopoietic progenitor cell colony culture. The change trend of each index over time was observed, and the differences in each index was compared between cold storage and room temperature storage under the same storage time. RESULTS: The TNC count (r 4 ℃=-0.9588, r 20-24 ℃=-0.9790), TNC viability (r 4 ℃=-0.9941, r 20-24 ℃=-0.9970), CD34+ cells viability (r 4 ℃=-0.9932, r 20-24 ℃=-0.9828) of cord blood stored in cold storage (4 ℃) and room temperature storage (20-24 ℃) showed a consistent downward trend with the prolongation of storage time. The percentage of viable CD34+ cells (r 4 ℃=0.9169, r 20-24 ℃=0.7470) and CFU-GM count (r 4 ℃=-0.2537, r 20-24 ℃=-0.8098) did not show consistent trends. When the storage time was the same, the TNC count, TNC viability, CD34+ cells viability and CFU-GM count of cord blood stored in cold storage were higher than those stored at room temperature. Under the same storage time (24, 36, 48, 60 or 72 h), TNC viability in room temperature storage was significantly lower than that in cold storage (P <0.001), but TNC count, percentage of viable CD34+ cells and CFU-GM count were not significantly different between room temperature storage and cold storage. When stored at room temperature for 24 h and 36 h, the viability of CD34+ cells was significantly lower than that in cold storage (P <0.001, P <0.01), when the storage time for 48, 60 and 72 h, there was no significant difference in the CD34+ cells viability between room temperature storage and cold storage. CONCLUSION: It is recommended that cord blood be stored in cold storage (4 ℃) from collection to preparation, and processed as soon as possible.


Assuntos
Antígenos CD34 , Preservação de Sangue , Sangue Fetal , Humanos , Sangue Fetal/citologia , Recém-Nascido , Fatores de Tempo , Citometria de Fluxo , Células-Tronco Hematopoéticas/citologia , Sobrevivência Celular , Temperatura , Coleta de Amostras Sanguíneas
9.
COPD ; 10(6): 657-66, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23848567

RESUMO

Repeated intratracheal injection of Pseudomonas aeruginosa (PA) in male Wistar rats was used to investigate the role of chronic infection in the development of chronic obstructive pulmonary disease (COPD) and the possible involvement of connective tissue growth factor (CTGF) and bone morphogenetic protein-7 (BMP-7) in this process. Injections of PA or normal saline solution were given for 8 weeks and the rats observed for a further 8 weeks. In addition to arterial blood gas, lung function and lung pathology measurement during this time period, protein and mRNA expression of CTGF and BMP-7 were measured, and the correlation of expression of CTGF and BMP-7 with pathological changes in the lung was evaluated. Repeated intratracheal PA infection in rats caused reduction in body weight, hypoxia, carbon dioxide retention, compromised lung function, chronic inflammation, thickening of the tracheal and arterial walls, and emphysema, changes consistent with those of COPD. Rats with PA infection also had increased CTGF and decreased BMP-7 expression, suggesting that both CTGF and BMP-7 are involved in the occurrence and development of airway remodeling. Our findings suggest that repeated airway infection is not only a factor resulting in deterioration of COPD, but is also a risk factor for its development, and that CTGF and BMP-7 are involved in the pathogenesis of this condition.


Assuntos
Proteína Morfogenética Óssea 7/metabolismo , Fator de Crescimento do Tecido Conjuntivo/metabolismo , Infecções por Pseudomonas/complicações , Pseudomonas aeruginosa , Doença Pulmonar Obstrutiva Crônica/etiologia , Doença Pulmonar Obstrutiva Crônica/metabolismo , Animais , Proteína Morfogenética Óssea 7/genética , Fator de Crescimento do Tecido Conjuntivo/genética , Modelos Animais de Doenças , Masculino , Infecções por Pseudomonas/metabolismo , Infecções por Pseudomonas/patologia , Doença Pulmonar Obstrutiva Crônica/patologia , RNA Mensageiro/metabolismo , Ratos , Ratos Wistar , Reação em Cadeia da Polimerase em Tempo Real
10.
Nutr Rev ; 2023 Dec 29.
Artigo em Inglês | MEDLINE | ID: mdl-38156738

RESUMO

CONTEXT: The safety and efficacy of nutritional management for pressure injuries (PIs) have been the subjects of ongoing interest. Some evidence demonstrated that nutrition is essential for skin and tissue viability, supporting tissue repair for healing the pressure injury. OBJECTIVE: This investigation aimed to systematically review clinical practice guidelines (CPGs) for the nutritional management of PIs and furnish an evidence map to assess research trends and CPG gaps. METHODS: The PubMed, Embase, and guidelines databases, and society websites were searched for CPGs for the nutritional management of PIs. The basic recommendations for the nutritional management of PIs, method quality, and reporting CPGs quality were identified and imported into Excel. Four researchers independently elucidated each CPG's quality via the Appraisal of Guidelines for Research & Evaluation (AGREE) II instrument and the Reporting Items for Practice Guidelines in Healthcare (RIGHT) checklist. All bubble charts were generated using Excel software. RESULTS: This review included 12 CPGs with a combined 23 recommendations. The nutrition screening and assessment were summarized on the basis of the PI recommendations for 6 major items, 12 items on nutrition management, and 3 on PI education. The assessed CPGs had mixed quality, and the highest score ± standard deviation based on the clarity of presentation was 83.46 ± 7.62, whereas the lowest mean score based on AGREE II applicability was 53.31 ± 16.90. Field 1 (basic information) in the RIGHT checklist had the greatest reporting rate (68.06%), whereas field 5 (review and quality assurance) had the lowest CPGs quality (41.67%). CONCLUSION: This investigation furnishes an evidence map and provides new perspectives on the CPGs for the nutritional management of PIs. However, the CPGs included still need improvement, especially in the applicability and editorial independence domains.

11.
J Affect Disord ; 277: 253-259, 2020 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-32841826

RESUMO

BACKGROUND: Suicidality is common in patients with migraine. Here, we performed a systematic review and estimated the prevalence of suicidal ideation (SI) and suicide attempt (SA) in patients with migraine. METHODS: We searched Pubmed, Embase, Web of Science, Cochrane database library, CINAHL, and PsycINFO for relevant publications. A random-effects model was used to pool the estimates of the prevalence of SI and SA, which were also stratified by the geographical location of the research institutions from the studies included in this meta-analysis. RESULTS: Fifteen studies involving 2,247,648 participants with migraine were selected. Pooled prevalence estimates of SI and SA were 15.5% [95% confidence interval (CI) 10.4-21.3%] and 3.9% (95% CI 0.9-8.8%), respectively, and the prevalence of SI was higher in Asian countries (21.5%, 95%CI 16.8-26.6%) compared with non-Asian countries (11.0%, 95%CI 6.1-17.2%). Measures of heterogeneity between studies were high for all outcomes (I2 = 89-100%), indicating that the substantial between-study heterogeneity in estimated proportions was not attributed to sampling error. The leave-one-out analysis showed that no single study significantly affected the final pooled results. CONCLUSIONS: This meta-analysis indicated a high prevalence of SI and SA in migraine patients. Thus, it is necessary to design targeted preventive measures for the management of migraine-related suicide.


Assuntos
Transtornos de Enxaqueca , Tentativa de Suicídio , Ásia , Humanos , Transtornos de Enxaqueca/epidemiologia , Prevalência , Ideação Suicida
12.
Zhonghua Gan Zang Bing Za Zhi ; 17(7): 540-3, 2009 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-19912691

RESUMO

OBJECTIVE: To explore the clinical and pathological features of liver injury in adults with acquired rubella. METHODS: Thirty-six adult patients with acquired rubella (AAR) were enrolled in this study, the liver functions were dynamically analyzed, liver biopsy was done in two patients. RESULTS: Liver injury was found in 77.8% of the 36 patients, with slight elevation of ALT and/or AST. The highest incidence and the most serious liver injury occurred in the period of 6-10d after vanishing of the rashes. Viral inclusion bodies were found in the liver specimen, with complete histological architecture but slight inflammation. The mean hospitalization days of AAR accompanied with liver injury and without liver injury were 18.2 days, 7.8 days, respectively (u=3.596>1.96, P<0.05). CONCLUSION: High incidence of liver injury is observed in the adult patients with acquired rubella occurred in recent years, usually exhibited by mild liver injury with slight elevation of ALT. The elevation of AST or jaundice may indicate more serious liver injury, and these patients should be given active treatment to prevent acute liver failure. Liver injury may prolong the course of rubella patients.


Assuntos
Alanina Transaminase/sangue , Hepatopatias/etiologia , Hepatopatias/patologia , Fígado/patologia , Rubéola (Sarampo Alemão)/complicações , Adolescente , Adulto , Aspartato Aminotransferases/sangue , Bilirrubina/sangue , Biópsia por Agulha , Feminino , Humanos , Hepatopatias/sangue , Hepatopatias/epidemiologia , Testes de Função Hepática , Masculino , Mitocôndrias Hepáticas/patologia , Prognóstico , Índice de Gravidade de Doença , Adulto Jovem
13.
Clin Plast Surg ; 44(2): 211-231, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28340659

RESUMO

This article presents the authors' understanding and experience concerning anatomic studies and clinical methods in microsurgical hand reconstruction. The 4 parts of this article include anatomic study of the hand for developing new flaps; application of miniflaps from the hand, including clinical experience with 8 unique flaps in the hand; anatomic and clinical considerations concerning several flaps from other parts of the human body; And our experience with vascularized free toe joint transfer.


Assuntos
Mãos/cirurgia , Microcirurgia/métodos , Procedimentos de Cirurgia Plástica/métodos , Mãos/irrigação sanguínea , Mãos/inervação , Humanos , Retalhos Cirúrgicos/irrigação sanguínea
14.
Neurochem Int ; 85-86: 46-52, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25953665

RESUMO

Sulfur dioxide (SO2) is a common air pollutant and can cause harmful insults on neurons. Microglial activation has been implicated in the signaling cascades that contribute to neuronal cell death in various neurological disorders. In the present study, we found that SO2 derivatives decreased cell viability via inducing oxidative stress, inflammatory responses and apoptotic cell death in BV2 microglial cells. Pretreatment with (RS)-2-chloro-5-hydroxyphenylglycine (CHPG), an mGluR5 agonist, significantly attenuated the SO2-induced cytotoxicity, which was fully prevented by the mGluR5 antagonist MPEP. CHPG increased the expression of TNF-α stimulated gene/protein 6 (TSG-6), but decreased the activation of nuclear factor-κB (NF-κB) after SO2 derivatives treatment in BV2 cells. In addition, knockdown of TSG-6 expression by specific targeted short interfering RNA (siRNA) partially reversed the protection induced by CHPG. Therefore, our findings reveal a mechanistic basis for exploring the association between SO2 exposure and neurological disorders, and also for opening up therapeutic approaches of ameliorating neuronal injury resulting from exposure in atmospheric polluting environment.


Assuntos
Glicina/análogos & derivados , Fenilacetatos/farmacologia , Receptor de Glutamato Metabotrópico 5/agonistas , Animais , Linhagem Celular , Citocinas/metabolismo , Glicina/farmacologia , Mediadores da Inflamação/metabolismo , Camundongos , Microglia/efeitos dos fármacos , Microglia/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Dióxido de Enxofre/toxicidade
15.
Zhonghua Yi Shi Za Zhi ; 43(5): 281-4, 2013 Sep.
Artigo em Chinês | MEDLINE | ID: mdl-24429036

RESUMO

Since the end of the Ming Dynasty, western medicine was introduced into China gradually. At first, due to the Chinese were used to traditional Chinese medicine treatment, plus the disgusted attitude toward the malfeasance of western missionaries, the Chinese didn't accept western medical approaches, even with resentment. As the advantages of western medicine gradually revealed, the Chinese felt the magical effects of western medicine in medical practice, and at the same time, the advanced intellectuals were seeking the truth to save the nation and its people, then western medicine were accepted by the Chinese gradually and then spread all over China, reflecting that this process of from conflict between Chinese and western culture to recognition is but, in fact, the cultural conflict between China and the West and its fusion.

16.
Asian Pac J Cancer Prev ; 13(1): 205-9, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22502669

RESUMO

BACKGROUND: The inhibition of tumor cell growth without toxicity to normal cells is an important target in cancer therapy. One possible way to increase the efficacy of anticancer drugs and to decrease toxicity or side effects is to develop traditional natural products, especially from medicinal plants. Paris polyphylla Smith has shown anti-tumour effects by inhibition of tumor promotion and inducement of tumor cell apoptosis, but mechanisms are still not well understood. The present study was to explore the effect of Paris polyphylla Smith extract (PPSE) on connexin26 and growth control in human esophageal cancer ECA109 cells. METHODS: The effects of PPSE on Connexin26 were examined by RT-PCR, western blot and immunofluorescence; cell growth and proliferation were examined by the 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl-tetrazolium bromide (MTT) assay. RESULTS: PPSE inhibited the growth and proliferation on esophageal cancer ECA109 cells, while increasing the expression of connexin26 mRNA and protein; conversely, PPSE decreased Bcl-2 and increased Bad. CONCLUSION: This study firstly shows that PPSE can increase connexin26 expression at mRNA and protein level, exerting anti-tumour effects on esophageal cacner ECA109 cells via inhibiting cell proliferation and inducing cell apoptosis.


Assuntos
Apoptose/efeitos dos fármacos , Conexinas/metabolismo , Neoplasias Esofágicas/metabolismo , Neoplasias Esofágicas/patologia , Liliaceae/química , Fitoterapia , Extratos Vegetais/farmacologia , Western Blotting , Proliferação de Células/efeitos dos fármacos , Conexina 26 , Conexinas/genética , Neoplasias Esofágicas/tratamento farmacológico , Imunofluorescência , Humanos , Proteínas Proto-Oncogênicas c-bcl-2/genética , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , RNA Mensageiro/genética , Reação em Cadeia da Polimerase em Tempo Real , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Células Tumorais Cultivadas , Proteína de Morte Celular Associada a bcl/genética , Proteína de Morte Celular Associada a bcl/metabolismo
17.
Asian Pac J Cancer Prev ; 12(10): 2601-6, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22320960

RESUMO

BACKGROUND: Mechanisms of apoptosis in tumor cells is an important field of tumor therapy and cancer molecular biology. Loss of cell cycle control, leading to uncontrolled proliferation, is common in cancer. Therefore, the identification of potent and selective cyclin dependent kinase inhibitors is a priority for anti-cancer drug discovery. There are at least two major apoptotic pathways, initiated by caspase-8 and caspase-9, respectively, which can activate caspase cascades. Apoptosis triggered by activation of the mitochondrial-dependent caspase pathway represents the main programmed cell death mechanism. This is activated by various intracellular stresses that induce permeabilization of the mitochondrial membrane. Anti-tumor effects of celery seed extract (CSE) and related mechanisms regarding apoptosis were here investigated in human gastric cancer BGC-823 cells. METHODS: CSE was produced by supercritical fluid extraction. Cell viability was analyzed by 3-(4,5-dimethylthiazol-2-yl)- 2,5-diphenyl-tetrazolium bromide (MTT) assay and apoptosis by flow cytometry using Annexin/PI staining and DAPI staining and a laser scanning confocal microscope (LSCM). Cell cycling was evaluated using PI staining with flow cytometry and expression of cell cycle and apoptosis-related proteins cyclin A, CDK2, bcl-2 and bax was assessed by immunohistochemical staining. RESULTS: CSE had an anti-proliferation effect on human gastric cancer BGC-823 cells in a dose- and time-dependent manner. After treatment, the apoptotic rate significantly increased, with morphological changes typical of apoptosis observed with LSCM by DAPI staining. Cell cycle and apoptosis related proteins, such as cyclin A, CDK2 and bcl-2 were all down-regulated, whereas bax was up-regulated. CONCLUSIONS: The molecular determinants of inhibition of cell proliferation as well as apoptosis of CSE may be associated with cycle arrest in the S phase.


Assuntos
Apoptose/efeitos dos fármacos , Extratos Vegetais/farmacologia , Pontos de Checagem da Fase S do Ciclo Celular/efeitos dos fármacos , Neoplasias Gástricas/patologia , Apium/química , Caspase 3/metabolismo , Caspase 8/metabolismo , Caspase 9/metabolismo , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Ciclina A/metabolismo , Quinase 2 Dependente de Ciclina/metabolismo , Humanos , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Sementes/química , Neoplasias Gástricas/metabolismo , Proteína X Associada a bcl-2/metabolismo
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