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1.
Chemistry ; 2019 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-31670422

RESUMO

Photon upconversion enjoys an increasing interest in the last years due to its high potential for solar energy harvesting and in bio-imaging. A challenge for triplet-triplet annihilation upconversion (TTA-UC) processes is to realize these features in solid materials without undesired phase segregation and detrimental dye aggregation. To achieve this, we combine a palladium porphyrin sensitizer and a 9,10-diphenylanthracene annihilator within a crystalline mesoporous metal-organic framework using an inverted design. In this modular TTA system, the framework walls constitute the fixed sensitizer, while caprylic acid coats the channels providing a solvent-like environment for the mobile annihilator in the channel. The resulting solid material shows green-to-blue delayed upconverted emission with a luminescence lifetime of 373±5 µs, a threshold value of 329 mW cm-2 and a triplet-triplet energy transfer efficiency of 82%. The versatile design allows straightforward changing the acceptor amount and type.

2.
Toxicol Ind Health ; : 748233719871778, 2019 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-31601156

RESUMO

This study aims to investigate the role of Toll-like receptors (TLRs) on fine particulate matter (PM2.5)-induced inflammatory responses of vascular endothelial cells. Inflammatory factors and TLRs were examined in the aorta of mice after nonsurgical intratracheal instillation of PM2.5 as well as in the human umbilical vein endothelial cells (HUVECs) treated with PM2.5. In addition, the effects of TLR2 and TLR4 inhibitors in the secretion of interleukin 6 (IL-6) and IL-1ß and the expression of TLRs were determined in the HUVECs. The results showed that PM2.5 could increase the expression of IL-1ß, IL-6, TLR2, and TLR4 in vitro and in vivo. Anti-TLR2 IgG or TAK242, an inhibitor of TLR4, decreased the secretion of IL-1ß and IL-6 by HUVECs and reduced the expression of corresponding TLRs. In conclusion, we demonstrate that both TLR2 and TLR4 are involved in PM2.5-induced inflammatory responses of vascular endothelial cells. Inhibition of TLR2 and TLR4 expression has the potential to prevent PM2.5-induced cardiovascular diseases.

3.
Artigo em Inglês | MEDLINE | ID: mdl-31600421

RESUMO

Photoactive metal complexes employing Earth-abundant metal ions are a key to sustainable photophysical and photochemical applications. We exploit the effects of an inversion center and ligand non-innocence to tune the luminescence and photochemistry of the excited state of the [CrN6 ] chromophore [Cr(tpe)2 ]3+ with close to octahedral symmetry (tpe=1,1,1-tris(pyrid-2-yl)ethane). [Cr(tpe)2 ]3+ exhibits the longest luminescence lifetime (τ=4500 µs) reported up to date for a molecular polypyridyl chromium(III) complex together with a very high luminescence quantum yield of Φ=8.2 % at room temperature in fluid solution. Furthermore, the tpe ligands in [Cr(tpe)2 ]3+ are redox non-innocent, leading to reversible reductive chemistry. The excited state redox potential and lifetime of [Cr(tpe)2 ]3+ surpass those of the classical photosensitizer [Ru(bpy)3 ]2+ (bpy=2,2'-bipyridine) enabling energy transfer (to oxygen) and photoredox processes (with azulene and tri(n-butyl)amine).

4.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 50(4): 540-545, 2019 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-31642232

RESUMO

OBJECTIVE: To explore the anti-virus effect of AY358935 gene cloned by our research team on vesicular stomatitis virus (VSV), and studytheanti-virus mechanism. METHODS: HEK293 cells were stably transfected by the AY358935 gene recombinant plasmid pcDNA3.1-AY358935 or pcDNA3.1 blank plasmid respectively. Then VSV was added into the cell wells to infect the above cells at the multiplicity of infection (MOI) of 0.001. The virus titers in the liquid supernatant of the above three groups of cells were detected on different time, and the mortality of cells of each group was tested with trypan blue exclusion test at 24 h post VSV infection. Total RNA was extracted from the cells that stably transfected with target gene for the whole genome-wide cDNA microarray analysis. RESULTS: ① Virus titer:The virus titer in the liquid supernatant of pcDNA-3.1-AY358935 transfection cells group was obviously lower than those in pcDNA-3.1 transfection cell group and blank control cell group at 12 h post infection. The virus titerin the liquid supernatant of three groups were (7.16±2.33)×105 PFU/mL, (6.25±2.05)×106 PFU/mL and (7.75±2.54)×106 PFU/mL respectively at 18 h post infection. At that time, the virus titerin the liquid supernatant of pcDNA3.1-AY358935 group was nearly 10 times lower than those of other two groups (P < 0.01). ②Mortality of cells:The cell mortality of pcDNA3.1-AY358935 group, pcDNA3.1 group and blank group were (35.00±6.68)%, (78.33±15.03)% and (83.34±14.98)% respectively at 24 h post infection.The cell mortality of pcDNA3.1-AY358935 group was significantly decreased comparing with other two groups (P < 0.01). ③Result of genes chip analysis: compared with pcDNA3.1 group, 30 cell genes were up-regulated by more than 3 times in pcDNA3.1-AY358935 group. Among them, the proportion of interferon-activating gene, interferon-effect gene, cytokine and chemokine was 27%, 17%, and 20%, respectively. CONCLUSION: AY358935 gene hasan anti-VSV effect, and its anti-virus mechanism may involve the interferon-associated natural immune response.

5.
Mol Ecol ; 28(17): 4046-4064, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31392804

RESUMO

Hybridization and convergent evolution are phenomena of broad interest in evolutionary biology, but their occurrence poses challenges for reconstructing evolutionary affinities among affected taxa. Sticklebacks in the genus Pungitius are a case in point: evolutionary relationships and taxonomic validity of different species and populations in this circumpolarly distributed species complex remain contentious due to convergent evolution of traits regarded as diagnostic in their taxonomy, and possibly also due to frequent hybridization among taxa. To clarify the evolutionary relationships among different Pungitius species and populations globally, as well as to study the prevalence and extent of introgression among recognized species, genomic data sets of both reference genome-anchored single nucleotide polymorphisms and de novo assembled RAD-tag loci were constructed with RAD-seq data. Both data sets yielded topologically identical and well-supported species trees. Incongruence between nuclear and mitochondrial DNA-based trees was found and suggested possibly frequent hybridization and mitogenome capture during the evolution of Pungitius sticklebacks. Further analyses revealed evidence for frequent nuclear genetic introgression among Pungitius species, although the estimated proportions of autosomal introgression were low. Apart from providing evidence for frequent hybridization, the results challenge earlier mitochondrial and morphology-based hypotheses regarding the number of species and their affinities in this genus: at least seven extant species can be recognized on the basis of genetic data. The results also shed new light on the biogeographical history of the Pungitius-complex, including suggestion of several trans-Arctic invasions of Europe from the Northern Pacific. The well-resolved phylogeny should facilitate the utility of this genus as a model system for future comparative evolutionary studies.

6.
J Pediatr Orthop ; 2019 Aug 02.
Artigo em Inglês | MEDLINE | ID: mdl-31385897

RESUMO

OBJECTIVE: To find a new reference for assessment of pediatric forearm radiographs besides the traditional RCL. METHODS: RCLs were drawn on the anteroposterior (AP) and lateral radiographs of 170 normal pediatric forearms. Three lines were drawn on each radiograph: the first was drawn along the longitudinal center of the radial neck (N-line); the second, along the radial shaft (S-line); and the third, through the midpoints of the proximal and distal radial physes (P-line). RESULTS: The P-line was least likely to miss the capitellum on both AP views and lateral views, and the P-line most frequently passed through the central third of the capitellum on both AP views and lateral views. CONCLUSIONS: Our proposed radiocapitellar P-line was found to be much more reliable in younger children than traditional RCLs.

7.
Intensive Crit Care Nurs ; 54: 7-14, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31395447

RESUMO

OBJECTIVES: To assess the impact of analgosedation on mortality and delirium in critically ill patients. RESEARCH METHODOLOGY: A systematic review and meta-analysis was conducted to identify studies through Pubmed, Cochrane Library, Embase and Web of Science published from June 2017 to July 2018. Only articles published in English were considered. The Cochrane Collaboration Risk of Bias Tool was used to evaluate the methodological quality of randomised trials, while Newcastle-Ottawa Scale (NOS) was used for cohort studies. RESULTS: Seventeen eligible studies were identified, including 2298 patients (1170 in the experimental group and 1128 in the control group). Varying analgesics and sedatives were investigated, showing a high clinical heterogeneity. Analgosedation significantly decreased the ICU mortality rate when compared to conventional analgesia and sedation [odds ratio (OR) 0.72, 95%CI 0.53-0.97; P = 0.03]. No significant difference was demonstrated in 28-day/hospital mortality rate [OR 0.91, 95%CI 0.70-1.18; P = 0.48] or in the incidence of delirium [OR 1.06, 95%CI 0.78-1.45; P = 0.70]. However, subgroup analysis of trials indicated a significant increase in the delirium rate (OR: 1.88, 95%CI 1.14-3.10, p = 0.01). CONCLUSION: The ICU mortality was decreased by implementing analgosedation, but the hospital mortality and the delirium rates were not. Because of the absence of higher quality study designs, clinical heterogeneity and inclusion of small number of studies, the analysis results must be cautiously interpreted.

8.
Chemistry ; 25(53): 12342-12348, 2019 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-31322767

RESUMO

Structural modularity of polymer frameworks is a key advantage of covalent organic polymers, however, only C, N, O, Si, and S have found their way into their building blocks so far. Here, the toolbox available to polymer and materials chemists is expanded by one additional nonmetal, phosphorus. Starting with a building block that contains a λ5 -phosphinine (C5 P) moiety, a number of polymerization protocols are evaluated, finally obtaining a π-conjugated, covalent phosphinine-based framework (CPF-1) through Suzuki-Miyaura coupling. CPF-1 is a weakly porous polymer glass (72.4 m2 g-1 BET at 77 K) with green fluorescence (λmax =546 nm) and extremely high thermal stability. The polymer catalyzes hydrogen evolution from water under UV and visible light irradiation without the need for additional co-catalyst at a rate of 33.3 µmol h-1 g-1 . These results demonstrate for the first time the incorporation of the phosphinine motif into a complex polymer framework. Phosphinine-based frameworks show promising electronic and optical properties, which might spark future interest in their applications in light-emitting devices and heterogeneous catalysis.

9.
Zhongguo Zhong Yao Za Zhi ; 44(11): 2348-2352, 2019 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-31359662

RESUMO

The aim of this paper was to investigate the effect of SIRT1/TSC_2 signal axis on leukemia stem cell senescence induced by ginsenoside Rg_1. CD34~+CD38~- leukemia stem cells(CD34~+CD38~-LSCs) was isolated by magnetic cell sorting(MACS) and divided into two groups. The control group cells were routinely cultured, 40 µmol·L~(-1) ginsenoside Rg_1 was added to the control group for co-culture in Rg_1 group. The effect of Rg_l to induce CD34~+CD38~-LSCs senescence were evaluated by senescence-associated ß-Galactosidase(SA-ß-Gal) staining, cell cycle assay, CCK-8 and Colony-Assay. The expression of senescence associated SIRT1, TSC_2 mRNA and protein was examined by Real-time fluorescence quantitative PCR(FQ-PCR) and Western blot. The results showed that the CD34~+CD38~-LSCs could effectively be isolated by MACS, and the purity of CD34~+CD38~-LSCs is up to(95.86±3.04)%. Compared with the control group, the percentage of positive cells expressed SA-ß-Gal in the Rg_1 group is increased, the senescence morphological changes were observed in the CD34~+CD38~-LSCs in the Rg_1 group. The proliferation inhibition rate and the number of cells entered G_0/G_1 phase in the Rg_1 group were increased, but the colony-formed ability was decreased, Rg_1 could significantly inhibit the proliferation and self-renewal ability of CD34~+CD38~-LSCs. The expression of SIRT1 and TSC_2 mRNA and protein were down regulated in the Rg_1 group compared with the control group. Our research implied that Rg_1 may induce the senescence of CD34~+CD38~-LSCs and SIRT1/TSC_2 signal axis plays a significant role in this process.


Assuntos
Senescência Celular/efeitos dos fármacos , Ginsenosídeos/farmacologia , Leucemia Mieloide Aguda , Células-Tronco Neoplásicas/efeitos dos fármacos , Transdução de Sinais , Sirtuína 1/metabolismo , Proteína 2 do Complexo Esclerose Tuberosa/metabolismo , Humanos , Células Tumorais Cultivadas
10.
Inorg Chem ; 58(15): 10047-10056, 2019 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-31287677

RESUMO

Separation of trivalent actinides An(III) from lanthanides Ln(III) is a worldwide challenge owing to their very similar chemical behaviors. It is highly desirable to understand the nature of selectivity for the An(III)/Ln(III) separation with various ligands through theoretical calculations because of their radiotoxicity and experimental difficulties. In this work, we have investigated three dithioamide-based ligands and their extraction behaviors with Am(III) and Eu(III) ions using the scalar-relativistic density functional theory. The results show that the dithioamide-based ligands have stronger electron donating ability than do the corresponding diamide-based ones. All analyses including geometry, Mulliken population, QTAIM (quantum theory of atoms in molecules), and NBO (natural bond orbital) suggest that the Am-S/N bonds possess more covalency compared to the Eu-S/N bonds, and the M-S bonds have more covalent character than the M-N bonds. Thermodynamic results reveal that N2,N9-diethyl-N2,N9-di-p-tolyl-1,10-phenanthroline-2,9-bis(carbothioamide) (L1) has a stronger complexing ability with metal ions owing to its rigid structure and that N6,N6'-diethyl-N6,N6'-di-p-tolyl-[2,2'-bipyridine]-6,6'-bis(carbothioamide) (L2) shows a higher selectivity for the Am(III)/Eu(III) separation. In addition, these dithioamide-based ligands possess Am(III)/Eu(III) selectivity higher than those of the corresponding diamide-based ones, although the former have weaker complexing ability with metal ions, probably due to the greater covalency of the M-S bonds. This theoretical evaluation provides valuable insights into the nature of the selectivity for the Am(III)/Eu(III) separation and information on designing of efficient An(III)/Ln(III) separation with dithioamide-based ligands.

11.
Sci Rep ; 9(1): 10432, 2019 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-31320706

RESUMO

Retrospective studies have found that left upper lobectomy (LUL) may be a new risk factor for stroke, and the potential mechanism is pulmonary vein thrombosis, which more likely develops in the left superior pulmonary vein (LSPV) stump. The LSPV remaining after left pneumonectomy is similar to that remaining after LUL. However, the association between left pneumonectomy, LUL, and postoperative stroke remains unclear. Thus, we sought to analyze whether both LUL and left pneumonectomy are risk factors for postoperative stroke. We prospectively included consecutive patients who underwent resection between November 2016 and March 2018 at our institution with 6 months of follow-up. Baseline demographic and clinical data were taken. A logistic regression model was used to determine independent predictors of postoperative stroke. In our study, 756 patients who underwent an isolated pulmonary lobectomy procedure were screened; of these, 637 patients who completed the 6-month follow-up were included in the analysis. Multivariable logistic regression analysis adjusted for common risk factors showed that the LUL and left pneumonectomy were independent predictors of stroke (odds ratio, 18.12; 95% confidence interval, 2.12-155.24; P = 0.008). Moreover, diabetes mellitus also was a predictor of postoperative stroke. In conclusion, both LUL and left pneumonectomy are significant risk factors for postoperative stroke.

12.
BMC Neurol ; 19(1): 175, 2019 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-31331288

RESUMO

BACKGROUND: Elevated levels of plasma D-dimer increase the risk of ischemic stroke, stroke severity, and the progression of stroke status, but the association between plasma D-dimer level and functional outcome is unclear. The aim of this study is to investigate whether plasma D-dimer level is a determinant of short-term poor functional outcome in patients with acute ischemic stroke (AIS). METHODS: This prospective study included 877 Chinese patients with AIS admitted to Renmin Hospital of Wuhan University within 72 h of symptom onset. Patients were categorized by plasma D-dimer level: Quartile 1(≤0.24 mg/L), Quartile 2 (0.25-0.56 mg/L), Quartile 3 (0.57-1.78 mg/L), and Quartile 4 (> 1.78 mg/L). The medical record of each patient was reviewed, and demographic, clinical, laboratory and neuroimaging information was abstracted. Functional outcome at 90 days was assessed with the modified Rankin Scale. RESULTS: Poor outcome was present in 302 (34.4%) of the 877 patients that were included in the study (mean age, 64 years; male, 68.5%). After adjustment for potential confounding variables, higher plasma D-dimer level on admission was associated with poor outcome (adjusted odds ratio 2.257, 95% confidence interval 1.349-3.777 for Q4:Q1; P trend = 0.004). According to receiver operating characteristic (ROC) analysis, the best discriminating factor for poor outcome was a plasma D-dimer level ≥ 0.315 mg/L (area under the ROC curve 0.657; sensitivity 83.8%; specificity 41.4%). CONCLUSION: Elevated plasma D-dimer levels on admission are significantly associated with poor outcome after admission for AIS, suggesting the potential role of plasma D-dimer level as a predictive marker for short-term poor outcome in patients with AIS.

13.
J Adv Nurs ; 2019 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-31215074

RESUMO

AIMS: To explore nursing students' academic procrastination and its relationship with emotional intelligence (EI) and self-efficacy, and self-efficacy's mediation of the relationship between EI and academic procrastination. BACKGROUND: Academic procrastination can lead to a range of negative outcomes. Previous researches have suggested EI and self-efficacy are associated with academic procrastination, but the underlying mechanism of the relationships between them is not clear. Therefore, it is important to determine how these two factors affect academic procrastination. DESIGN: A cross-sectional survey. METHODS: A convenience sample of 347 nursing students was recruited from two junior colleges in Jinan City, Shandong Province, China. RESULTS: Emotional intelligence and self-efficacy were negatively associated with academic procrastination. Furthermore, self-efficacy mediated the relationship between EI and academic procrastination. CONCLUSIONS: Students who report lower EI and self-efficacy may be at a higher risk of academic procrastination. One way of weakening individuals' procrastination is to strengthen their EI. Another is to help them believe in their abilities rather than fear failure in achieving their goal. Focusing more on these influencing factors can help nursing educators develop intervention measures aimed at decreasing students' procrastination behaviour, such as through EI and self-efficacy training. IMPACT: The findings from the current study could have important implications for nursing education. That is, students who report lower EI and self-efficacy may be at a higher risk of academic procrastination. A larger focus on these influencing factors can help nursing educators and consultants develop intervention measures aimed at decreasing students' procrastination behaviour.

14.
Biopreserv Biobank ; 17(5): 444-451, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31194576

RESUMO

Objectives: miR-200c-3p has been shown to serve as a tumor suppressor in various tumor types. However, the biological function of miR-200c-3p in nephroblastoma remains unknown. This study aims to investigate the biological function and regulatory mechanisms of miR-200c-3p in nephroblastoma development. Methods: The expression of miR-200c-3p in nephroblastoma tissues and cells was evaluated by quantitative real-time polymerase chain reaction (qRT-PCR). The effects of miR-200c-3p on the proliferation and cell cycle of SK-NEP-1 nephroblastoma cell line were evaluated by CCK-8 assay, colony formation assay, and flow cytometry. The effects of miR-200c-3p on the migratory and invasive capacities of SK-NEP-1 cells were measured by wound healing assay and transwell assay. The ability of miR-200c-3p to target fibroblast growth factor receptor substrate 2 (FRS2) was detected by quantitative PCR, western blot, and luciferase reporter assay. Results: The expression of miR-200c-3p was significantly downregulated in nephroblastoma tissues and cells compared with that in normal renal tissues and cells. miR-200c-3p inhibited the proliferative, migratory, and invasive capacities of nephroblastoma cells by targeting FRS2. Conclusions: miR-200c-3p suppresses the malignant behaviors of nephroblastoma cells by downregulating the expression of FRS2.

15.
J Clin Nurs ; 28(19-20): 3441-3450, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31162849

RESUMO

AIM: To explore symptom clusters experienced by patients with oesophageal cancer 3 months after surgery and examine whether symptom clusters are related to demographic, clinical and quality of life variables. BACKGROUND: There are multiple symptoms in patients with oesophageal cancer after surgery, which seriously affect their quality of life. Exploring the mechanics of concurrent symptoms such as symptom clusters may facilitate the development of strategies to reduce the impact of these symptoms and improve quality of life. DESIGN: Cross-sectional survey. The STROBE Statement was chosen as the EQUATOR checklist. METHODS: A convenience sample of 128 oesophageal cancer patients was followed up at 3 months after surgery. Participants completed the demographic questionnaire, the M. D. Anderson Symptom Inventory for Gastrointestinal Cancer, the Functional Assessment of Cancer Therapy-General and the Connor-Davidson Resilience Scale. Exploratory factor analysis, stepwise regression and correlation analysis were applied. RESULTS: Four symptom clusters were identified: dysphagia-psychological, chemoradiotherapy side-effect, digestive tract reconstruction and fatigue-sleep. Gender, stage of disease and resilience influenced the dysphagia-psychological symptom cluster. Gender, stage of disease, resilience and treatment were significant factors affecting the chemoradiotherapy side-effect and fatigue-sleep symptom clusters. Gender, stage of disease, resilience and anastomotic position were significant factors influencing the digestive tract reconstruction symptom cluster. The correlations between symptom clusters and quality of life were significant, with the highest correlation between the dysphagia-psychological cluster and quality of life. CONCLUSIONS: Nurses should pay more attention to symptom management in patients with oesophageal cancer 3 months after surgery by focusing on four symptom clusters. It is necessary to implement individualised care depending on the influence factors including gender, stage of disease, resilience, treatment and anastomotic position. RELEVANCE TO CLINICAL PRACTICE: These findings will help develop targeted interventions to facilitate further symptom management for transitional nursing from the peri-operative phase to long-term rehabilitation.

16.
Zhen Ci Yan Jiu ; 44(5): 363-6, 2019 May 25.
Artigo em Chinês | MEDLINE | ID: mdl-31155870

RESUMO

OBJECTIVE: To observe the therapeutic effect of plum-blossom needle tapping plus moxibustion in the treatment of post-stroke neurogenic bladder(PSNB). METHODS: A total of 60 PSNB patients were equally randomized into control group (16 men and 14 women, 65.6±7.9 years in age, 10.1±6.3 months in the duration of disease) and treatment group (18 men and 12 women, 63.8±8.5 years in age, 9.8±6.5 months in the duration of disease). Patients of the control group were treated by asking the patients to make a pelvic muscular exercise and passive intermittent urethral catheterization. For patients of the treatment group, a plum-blossom needle was used to alternatively tap the bilateral Shenshu(BL23), Qihaishu(BL24), Guanyuanshu(BL26), Xiaochangshu(BL27), Pangguangshu(BL28), Huiyang(BL35), Shangliao(BL31), etc., followed by performing moxibustion over the skin of Shenque(CV8), Guanyuan(CV4), Qihai(CV6) and Zhongji(CV3), etc. about 15 min. In addition, patients without spontaneous urination were also received urethral catheterization as those in the control group. The treatment was given once every day except the weekends and for two months. The integrated symptom score was assessed. The frequencies of diurnal urination and urinary incontinence, and the urination volume every time were respectively recorded for consecutive 3 days before and after the treatment, and the residual urine volume was also measured. The therapeutic effect was evaluated based on the status and frequency of diurnal urination and residual urine volume each time. RESULTS: Of the two 30 cases in the control and treatment groups, 2(6.7%) and 5(16.7%) were cured, 8(26.7%) and 12(40.0%) experienced marked improvement in their symptoms, 13(43.3%) and 11(36.7%) were improved, 7(23.3%) and 2(6.7%) failed, with the effective rates being 76.7% and 93.3%, respectively. The effective rate of the treatment group was significantly higher than that of the control group(P<0.05). After the treatment, the integrated symptom score, residual urine volume, and frequencies of diurnal urination and urinary incontinence were significantly decreased, and the diurnal urination volume was obviously increased in comparison with their own pre-treatment in both groups(all P<0.05). The therapeutic effect of the treatment group was significantly superior to that of the control group in reducing the integrated symptom score, residual urine volume, and frequencies of diurnal urination and urinary incontinence(P<0.05), and in increasing the diurnal urination volume(P<0.05). CONCLUSION: Plum-blossom needle tapping plus moxibustion is an effective option for the treatment of PSNB in improving symptoms, in reducing the residual urine volume and frequencies of diurnal urination and urinary incontinence, and in increasing the diurnal urination volume, deserving being promoted in primary care.


Assuntos
Moxibustão , Prunus domestica , Acidente Vascular Cerebral , Bexiga Urinaria Neurogênica , Idoso , Feminino , Flores , Humanos , Masculino , Pessoa de Meia-Idade , Acidente Vascular Cerebral/complicações , Bexiga Urinaria Neurogênica/etiologia , Bexiga Urinaria Neurogênica/terapia
17.
Molecules ; 24(11)2019 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-31159343

RESUMO

In this work, with the drug oxytetracycline (OTC) released, cell cytotoxicity and antimicrobial studies of dual-responsive sodium alginate and N-Isopropylacrylamide hydrogels (SA/pNIPAAm) with enclosed OTC were investigated. The molecular OTC release was explored with different acid-base conditions and temperature conditions. In order to characterize cell cytotoxicity and antimicrobial efficacy, time-dependent OTC release analysis of different acid-base conditions was performed in SA/pNIPAAm hydrogels. OTC@SA/pNIPAAm hydrogels showed excellent time-dependent antimicrobial efficacy, in which the IC50 values were 50.11 µg mL-1, 34.27 µg mL-1, and 22.39 µg mL-1 among three consecutive days, respectively. Meanwhile, the human cells showed excellent viability at the IC50 dosage of OTC@SA/pNIPAAm (50.11 µg mL-1). OTC@SA/pNIPAAm performed in this study indicated that SA/pNIPAAm may serve as drug carriers for sustainable release at a specific concentration and for being employed as substrates for decreasing drug toxicity. Besides, pH-responsive and thermos-responsive SA/pNIPAAm may lead to the better selectivity of drug release in the ideal location or site. Finally, the results demonstrate that the designed, dual-responsive, biocompatible OTC@SA/pNIPAAm hydrogels showed excellent antimicrobial efficacy and may potentially be found to have enormous applicability in the field of pharmaceutics.

18.
Org Biomol Chem ; 17(22): 5514-5519, 2019 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-31115424

RESUMO

Pharmaceutically important compounds were synthesized through the organocatalytic 1,3-dipolar cycloaddition reaction. In the presence of a cinchonine-derived squaramide catalyst, the cycloaddition of N-2,2,2-trifluoroethylisatin ketimines with α,ß-unsaturated pyrazolones gave a spiro-pyrrolidine-linked oxindole and pyrazolone compound bearing four consecutive stereocenters and two vicinal spiroquaternary chiral centers, in excellent yields and stereoselectivities.

19.
Sensors (Basel) ; 19(10)2019 May 14.
Artigo em Inglês | MEDLINE | ID: mdl-31091745

RESUMO

In this work, we have developed a simple and rapid colorimetric assay for the detection of immunoglobulin E (IgE) using functional nucleic acids (FNAs) and a solid-phase competition enzyme-linked immunosorbent assay (ELISA). The FNAs including aptamer of recombinant IgE, G-quadruplex and its complementary fragments were immobilized on 96-well microplates to achieve recognition and detection of IgE in biological samples. The G-quadruplex DNAzyme catalyzed 2,2'-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS)-hemin-H2O2 system was used to improve the sensitivity of colorimetric assay. In the presence of IgE, the hairpin structure and G-quadruplex would be destroyed, resulting in the inactivation of DNAzyme and subsequent reduction of its absorbance. This cost-effective approach detected IgE in the linear range from 5.0 pg/mL to 500 ng/mL, with the limit of detection (LOD) of 2.0 pg/mL, under optimal conditions. Moreover, the developed method was successfully applied to the rapid detection of IgE in human urine, indicating a great potentiality of this approach in clinical diagnosis and other biomedical applications.

20.
Chem Res Toxicol ; 32(6): 1250-1258, 2019 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-30966736

RESUMO

Organophosphorus flame retardants (OPFRs), a replacement for brominated flame retardants, have gradually been accepted as endocrine disrupting chemicals (EDCs). Recently, evidence has shown that these EDCs could cause chronic health problems, such as obesity, and referred to as metabolic disruptors. However, the disturbance to lipid metabolism caused by OPFRs remains poorly understood, especially at biological molecular levels. Herein, we used the human hepatocellular cells (HepG2) to study the lipid metabolism disruption caused by nine OPFRs (halogenated-, aryl-, and alkyl-containing). All the tested OPFRs, excluding the long carbon chain alkyl-OPFRs, could cause intracellular triglyceride (TG) and/or total cholesterol (TC) accumulation. In detail, aryl-OPFRs (TPhP and TCP) induced both TC and TG deposition. Halogenated-OPFRs (TCEP, TBPP, TDCPP, and TCPP) induced intracellular TG accumulation, and only TDCPP also induced TC accumulation. Furthermore, TPhP induced lipid accumulation through regulation genes encoding proteins involved in fatty acid ß-oxidation, lipid, and fatty acid synthesis. All the halogenated-OPFRs cause TG accumulation only, enacted through ß-oxidation rather than lipid synthesis. TPhP and TDCPP induced TC accumulation through both PPARγ and srebp2 signaling. Mitochondrial dysfunction including decreased oxygen consumption rate and ATP content may also contribute to lipid metabolic disruption by the tested OPFRs. Our data indicated that halogenated- and aryl-OPFRs may not be safe candidates, and further information should be made available as potential for, as well as the mechanism of, metabolic disruption. And long carbon chain alkyl-OPFRs may be safer than the other two groups.

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