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1.
Chemosphere ; 240: 124844, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31550584

RESUMO

Cetaceans and humans shared the same route of exposure to many anthropogenic contaminants via fish consumption. To assess the health risks associated with heavy metal levels in fishes from the Pearl River Estuary (PRE) and the seasonal dynamics, 13 fish species (n = 675) consumed by the Indo-Pacific humpback dolphins (Sousa chinensis) and humans were analyzed for concentrations of nine heavy metals. Heavy metal levels vary significantly by species and by season in the PRE fishes. The two eel goby species were the most contaminated fish species, which had the highest levels of Cu, Pb, Hg, Mn and Se. Levels of non-essential metals (As and Pb) in many different fish species were all found significantly higher in dry season than in wet season, which may reflect the dilution effect on contaminant levels in the PRE waters in rainy season. For essential metals, Cu, Cr and Se in many fish species were significantly higher in dry season compared to wet season, while Se and Mn in the other fish species showed an opposite pattern, since essential metal accumulation could be influenced by several physiological processes in life. Risk assessment for dolphins showed that inorganic-As levels in all fishes exceeded the safe limits, whereas a more conservative approach indicated that the levels of all metals in all fish samples had toxic effects on dolphins, except for Hg. Human health risk analysis showed that inorganic-As levels in tonguesole (all year) and sillago (dry season) and Cr levels in pomfret (dry season) exceeded the acceptable values.

2.
Biochim Biophys Acta Mol Basis Dis ; : 165576, 2019 Oct 28.
Artigo em Inglês | MEDLINE | ID: mdl-31666207

RESUMO

Highly expressed G protein-coupled receptor 81 (GPR81), a receptor for lactate, is emerging as a critical regulator of tumor growth and metastasis. However, the mechanistic basis for its highly expression in cancer cells remains elusive. Here we report that tumor-derived lactate transcriptionally regulates GPR81 expression. We demonstrated that the transcriptional response of GPR81 to lactate is mediated by Signal transducer and activator of transcription 3 (STAT3). Mechanistically, lactate upregulates transcriptional factor Snail and induces the assembly of Snail/EZH2/STAT3 complex. Within this ternary complex, STAT3 activity is strongly enhanced. Consequently, the activated STAT3 by lactate directly binds GPR81promoter and activates its expression. These findings shed light on the transcriptional mechanism by which GPR81 expression is regulated in cancer cells, and provides mechanistic insight into how aberrant signaling and continually high lactate levels due to metabolic switch may yield a feed-forward/self-enabling loop to promote tumor progression.

3.
Zootaxa ; 4679(3): zootaxa.4679.3.6, 2019 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-31715949

RESUMO

The family Hermatobatidae Poisson, 1965 is recorded for the first time from China and Hermatobates lingyangjiaoensis sp. n. is described. Photographs of the male and female habitus, legs, metasternum, and male genitalic structures, and scanning electron micrographs of the male metasternum and propleuron are provided. A key to all the species currently recognized in the H. weddi species group is presented. Distribution maps for the species of Hermatobates in China and Southeast Asia are also provided. Further, a photograph documenting the feeding of Hermatobates on Halovelia is presented for the first time to serve as direct evidence of the feeding habits of Hermatobates.

4.
Environ Sci Technol ; 53(21): 12449-12457, 2019 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-31573182

RESUMO

Phosphorus-inactivating agents (PIAs) have increasingly been applied and extensively investigated to control internal phosphorus loading in lakes. However, little is known about the behavior of PIA-amended sediment in terms of phosphorus immobilization and release when the sediment is resuspended in the photic layer, whose environment differs from the lake bed. Lanthanum-modified bentonite (LMB) is a popular PIA product. In this study, the 33 day core incubation experiment under dark conditions showed that capping sediment with LMB efficiently decreased the concentration of total phosphorus, total dissolved phosphorus, and dissolved inorganic phosphorus (DIP) by 90, 87, and 99%, respectively. Resuspension into overlying water under light conditions at high pH, high dissolved organic carbon, and in the presence of algae significantly impedes the performance of LMB. However, the adoption of a higher LMB dose improved the performance, including a reduction in the phosphorus level and control of algal growth. The dynamics of the phosphorus migration when the LMB-inactivated sediment was resuspended into the photic zone mainly involves the release of DIP from the sediment and the uptake of DIP by algae and LMB. In conclusion, a higher dose is needed in the PIA (particularly Phoslock) application in shallow productive lakes where sediment resuspension occurs frequently.

5.
Org Lett ; 21(20): 8496-8500, 2019 Oct 18.
Artigo em Inglês | MEDLINE | ID: mdl-31591887

RESUMO

A decarboxylation of alkyl carboxylic acids for alkylfluorination of alkene was developed, with the catalysis of silver(I) and Selectfluor as both the oxidant and fluorine source. This reaction is highly chemoselective, producing the decarboxylative alkylfluorination products rather than the competitive fluorination of aliphatic carboxylic acids. This practical transformation proceeds efficiently in aqueous media at room temperature and exhibits a large range of functional-group tolerance in various primary and secondary aliphatic carboxylates and alkenes.

6.
Zhong Nan Da Xue Xue Bao Yi Xue Ban ; 44(7): 767-774, 2019 Jul 28.
Artigo em Chinês | MEDLINE | ID: mdl-31413214

RESUMO

OBJECTIVE: To explore the changes of serum miR-375 and its target genes in patients with allergic rhinitis (AR) before and after treatment and its significance.
 Methods: A total of 120 AR patients treated in Wuhan Fourth Hospital were selected as an observation group (AR group), and 120 healthy volunteers served as a control group. Real-time quantitative polymerase chain reaction was used to detect the expression changes of miR-375 and its predicted target genes, such as 3-phosphoinositide-dependent protein kinase-1 (PDK1), protein kinase B (AKT1), Janus kinase 2 (JAK2), and signal transducer and activator of transcription 3 (STAT3), as well as inflammatory factors, such as tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-10 (IL-10), and interleukin-13 (IL-13) in the AR group before and after treatment. According to the relative expression levels of miR-375 and target genes, the AR patients were also subdivided into a high expression group and a low expression group for comparative analysis.
 Results: Before treatment, the level of miR-375 in the serum in the AR group was higher than that in the control group (P<0.01); the expressions of PDK1, AKT1, JAK2 and STAT3 in the plasma in the AR group were lower than those in the control group (all P<0.01); the plasma levels of TNF-α, IL-6, IL-10, and IL-13 in the AR group were higher than those in the control group (all P<0.05). After treatment, compared with the control group, the level of miR-375 in the serum was down-regulated (P<0.01), while the levels of target genes (PDK1, AKT1, JAK2 and STAT3) were up-regulated (all P<0.05), and the levels of TNF-α, IL-6, IL-10, and IL-13 were down-regulated in the AR group (all P<0.05). The total effective rate, total nasal symptom score (TNSS), symptom improvement time, and incidence of adverse reactions in the AR groups with high expression of miR-375 and low expression of target genes before treatment were better than those in the correspending groups with low expression of miR-375 and high expression of target genes (all P<0.05).
 Conclusion: MiR-375 might be a potential predictor of treatment response for AR patient, which might be related to the plasma levels of its target genes and inflammatory factors.


Assuntos
Rinite Alérgica , Humanos , Interleucina-6 , MicroRNAs , Fator de Transcrição STAT3 , Fator de Necrose Tumoral alfa
7.
Coron Artery Dis ; 30(6): 398-405, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31206405

RESUMO

BACKGROUND: Early identification of high-risk patients provides clinicians with greater decision-making time and better informs strategies to cope with disease. The predictive values of age shock index (age SI) and age-modified shock index (age MSI) in ST-segment elevation myocardial infarction (STEMI) patients undergoing emergency percutaneous coronary intervention (PCI) have rarely been reported, especially compared with those for SI, MSI, and the Global Registry of Acute Coronary Events (GRACE) risk score. PATIENTS AND METHODS: Nine hundred and eighty-three STEMI patients undergoing emergency PCI between January 2014 and September 2017 were analyzed in a retrospective cohort study. The primary outcomes were rates of in-hospital cardiovascular events, and 6-month and long-term all-cause mortality. RESULTS: In multivariate analyses, the predictive values of age SI and age MSI were comparable to that of the GRACE score, but superior to those of SI and MSI for in-hospital cardiac mortality [age SI: odds ratio (OR) = 1.05, P < 0.001, area under the receiver operating characteristic (ROC-AUC) = 0.805, P < 0.001; age MSI: OR = 1.04, P < 0.001, ROC-AUC = 0.813, P < 0.001; GRACE score: OR = 1.03, P < 0.001, ROC-AUC = 0.827, P < 0.001], 6-month all-cause mortality (age SI: OR = 1.04, P < 0.001, ROC-AUC = 0.791, P < 0.001; age MSI: OR = 1.03, P < 0.001, ROC-AUC = 0.801, P < 0.001; GRACE score: ROC-AUC = 0.828, P < 0.001), long-term all-cause mortality [age SI: hazard ratio (HR) = 1.06, P < 0.001, ROC-AUC = 0.798, P < 0.001; age MSI: HR = 1.04, P < 0.001, ROC-AUC = 0.84, P < 0.001; GRACE score: ROC-AUC = 0.822, P < 0.001] and post-discharge all-cause mortality (age SI: HR = 1.05, P < 0.001, ROC-AUC = 0.78, P = 0.001; age MSI: HR = 1.05, P < 0.001, ROC-AUC = 0.789, P < 0.001; GRACE score: ROC-AUC = 0.812, P < 0.001). CONCLUSION: Age SI and age MSI are stronger predictors than SI and MSI for in-hospital cardiovascular events, and 6-month and long-term all-cause mortality in STEMI patients undergoing emergency PCI. Age SI and age MSI appear to be convenient and simpler indicators than the GRACE score.

8.
Medicine (Baltimore) ; 98(19): e15629, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-31083261

RESUMO

OBJECTIVE: To determine the effects and mechanism of carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM-1, CC1)-mediated regulation of the Coxsackie and Adenovirus Receptor (CAR) after Coxsackievirus B3 (CVB3) infection. METHODS: A mouse CC1 overexpression recombinant virus was constructed, followed by insertion of a pLVX-CEACAM 1-zsgreen-puro (rLV-CEACAM 1) plasmid into the recombinant retrovirus. Cardiac myocytes were assigned into different groups according to various treatments. The apoptosis rate and cell activity in each group were observed. Further, CAR expression and SYK, IL-1ß, and p-SYK levels were measured. RESULTS: The recombinant retrovirus titer was measured as 1.5 × 10 TUs/ml. The apoptosis rate of cardiac myocytes in the CC1 overexpression plus CVB3 group was significantly elevated, and the relative expression of the CAR gene was the highest in the CC1 overexpression plus CVB3 group. TNF-α and IL-1ß levels increased due to CC1 overexpression and further increased after CVB3 infection. CAR protein expression also changed along with the levels of CC1, SYK, and TNF-α after infection. CONCLUSION: CC1 may promote CAR expression after CVB3 infection and regulate CAR protein expression by activating the CC1-SYK-TNF-α signaling axis during the infection process.


Assuntos
Antígeno Carcinoembrionário/metabolismo , Proteína de Membrana Semelhante a Receptor de Coxsackie e Adenovirus/metabolismo , Infecções por Coxsackievirus/metabolismo , Cardiopatias/metabolismo , Peptídeos e Proteínas de Sinalização Intracelular/metabolismo , Animais , Apoptose/fisiologia , Antígeno Carcinoembrionário/genética , Infecções por Coxsackievirus/patologia , Modelos Animais de Doenças , Regulação da Expressão Gênica , Cardiopatias/etiologia , Cardiopatias/patologia , Interleucina-1beta/metabolismo , Peptídeos e Proteínas de Sinalização Intracelular/genética , Camundongos , Células Musculares/metabolismo , Células Musculares/patologia , Organismos Livres de Patógenos Específicos , Quinase Syk/antagonistas & inibidores , Quinase Syk/metabolismo , Fator de Necrose Tumoral alfa/metabolismo
9.
Eur J Pharmacol ; 853: 49-55, 2019 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-30880177

RESUMO

Chiral ruthenium(II) complexes have long been considered as potential anticancer agents. Herein, in vivo inhibitory activity of a chiral ruthenium(II) complex coordinated by ligand 2-(2'-trifluoromethyphenyl) imidazo [4,5-f][1,10]phenanthroline, Δ-[Ru(bpy)2(o-FMPIP)] (D0402) on Kunming(KM) mice bearing tumor (H22 hepatic cancer) has been evaluated, and the results showed that the tumor weight of mice treated with 0.22 mg/(kg·day) D0402 via i.v. administration for 7 days decreased about 31.79% compared to the control group, while the body weight, as well as the thymus, spleen, liver, lung, and kidney indices of mice treated with D0402 observed almost no loss compared to the control group. Furthermore, the mechanism studies on anti-angiogenic showed that D0402 could inhibit the formation of angiogenesis in the transgenic Tg(fli1a: EGFP) zebrafish. After treated with D0402, the sub-intestinal vessels(SIVs) of the zebrafish became disordered and chaotic, and was dosage dependent. Moreover, the TUNEL analysis and comet assays revealed that D0402 can induce apoptosis of HepG2 cell through DNA damage, and this was further demonstrated by immunofluorescence analysis with the number of γ-H2AX increased following the increasing amount of D0402. Besides, in vivo toxicity of D0402 has also been investigated on the development of zebrafish embryo, and the results showed that there were no death or development delay occurred for zebrafish embryo treated with D0402 up to concentration of 60 µM. All in together, this study suggested that D0402 can be developed as a potential inhibitor against liver cancer through co-junction of anti-angiogenesis and apoptosis-inducing via DNA damage in the near future.


Assuntos
Apoptose/efeitos dos fármacos , Dano ao DNA , Compostos Organometálicos/química , Compostos Organometálicos/farmacologia , Fenantrolinas/química , Piridinas/química , Rutênio/química , Inibidores da Angiogênese/química , Inibidores da Angiogênese/farmacologia , Inibidores da Angiogênese/toxicidade , Animais , Relação Dose-Resposta a Droga , Células Hep G2 , Humanos , Camundongos , Compostos Organometálicos/toxicidade , Estereoisomerismo , Peixe-Zebra
11.
Sci Total Environ ; 668: 854-866, 2019 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-30870753

RESUMO

With the rapid and wide application of the coal gasification technology in China, the corresponding environmental issues require increasing attention. In this study, the feed coal, coal gasification wastewater samples at key technical links, and the coal gasification residues were collected from three entrained-flow coal gasification plants in Northwest China and were characterized to understand the migration and partition of 21 potentially hazardous trace elements (PHTEs) in coal gasification process and their potential environmental impacts. Compared with Chinese coal, the concentrations of the PHTEs in the feed coals are mainly at the level of "depleted" and "normal". Undergoing the heating process in the gasifier, purification procedure for the syngas, and the residue-wastewater separation, the PHTEs in the feed coals are transferred into gaseous phase, wastewater, and gasification residues. The PHTEs are easier to be released into the gaseous phase during the GSP gasification process compared with the OMB and GE gasification processes. The chalcophile elements Zn, As, Se, Cd, Sb, Tl, Pb, and Hg tend to be enriched in the fine residues, and the retention capability of Hg by the residues is the lowest. With the grey water circulation and the use of additives, the black water samples have higher PHTEs concentrations than other water samples. Except for Sr, Mo, Sb, and Cs, most of the elements in the original water samples can be reduced effectively by removing the particulate matters. In some cases, Cr6+, Zn, As, Se, Cd, and Pb in the original wastewater samples exceed the limit for industrial use as indicated in the Chinese Environmental Quality Standards for Surface Water and the Emission Standard for Pollutants from Coal Industry. The potential environmental impacts of As and Se in the water cannot be reduced by filtration. The environmental impacts of the coal gasification residues should be further evaluated.

12.
J Am Chem Soc ; 141(13): 5097-5101, 2019 Apr 03.
Artigo em Inglês | MEDLINE | ID: mdl-30887807

RESUMO

Volume variation and the associated mechanical fracture of electrode materials upon Li extraction/insertion are a main cause limiting lifetime performance of lithium-ion batteries. For LiNi1- x- yCo xMn yO2 (NCM) cathodes, abrupt anisotropic collapse of the layered lattice structure at deep charge is generally considered characteristic to high Ni content and can be effectively suppressed by elemental substitution. Herein, we demonstrate the lattice collapse is a universal phenomenon almost entirely dependent on Li utilization, and not Ni content, of NCM cathodes upon delithiation. With Li removal nearing 80 mol %, very similar c-axis lattice shrinkage of around 5% occurs concurrently for NCMs synthesized in-house regardless of nickel content (90, 70, 50, or 33 mol %); meanwhile, the a-axis lattice contracts for high-Ni NCM, but it expands for low-Ni NCM. We further reveal Co-Mn cosubstitution in NCM barely, if at all, affects several key structural aspects governing the lattice distortion upon delithiation. Our results highlight the importance of evaluating true implications of compositional tuning on high-Ni layered oxide cathode materials to maximize their charge-storage capacities for next-generation high-energy Li-ion batteries.

13.
Medicine (Baltimore) ; 98(13): e15008, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30921221

RESUMO

RATIONALE: Transradial access (TRA) is common for cardiac catheterization, but radial artery spasm (RAS) is suggested to be highlighted. Severe radical artery spasm could be solved by a relative novel approach called "sheathless technique," using a Tiger diagnostic catheter. PATIENT CONCERNS: A 73-year-old woman presented to our institution with a recurrent feeling of discomfort in her chest. Her electrocardiogram showed ST segment depression. Her medical history indicated arterial hypertension, diabetes, and chronic renal failure. She was on hemodialysis for 5 years for the management of renal problems. Five stents were implanted from femoral access in another hospital via 2 percutaneous coronary interventions. The patient agreed to angiography this time and wanted a more comfortable solution. DIAGNOSIS: Recurrent exertional angina was confirmed based on the chief complaint, electrocardiogram, and history. INTERVENTIONS: After a successful radial artery puncture, a 6F arterial sheath pipe and a 5F Tiger diagnostic ductus could only advance slightly because of the RAS. Glonoin and verapamil functioned with the help of the radial sheath, and systemic nitroglycerin was applied later but had a negative outcome. Warm covers were positioned on the antebrachium, but no relief was reported.The "homemade sheathless technique" was applied. The 5F tube was held, and the 6F sheath was withdrawn. A blade was used to damage the sheath in reverse, and the excess sheath tube was removed. OUTCOMES: The diagnostic catheter was successfully advanced to the ascending aorta, enabling left main and right coronary engagement and angiography. No significant coronary lesion was observed. The patient was discharged 3 days after angiography. Moreover, no complications were observed. A follow-up for 1 month after discharge also showed no complications. LESSONS: Severe RAS causing failure of TRA is frequent in the transradial catheterization procedure. The sheathless technique may be useful in relieving spasm when other measures fail.


Assuntos
Cateterismo Cardíaco/efeitos adversos , Cateteres Cardíacos , Doenças Vasculares Periféricas/prevenção & controle , Artéria Radial , Espasmo/prevenção & controle , Idoso , Angina Pectoris/complicações , Angina Pectoris/diagnóstico por imagem , Cateterismo Cardíaco/métodos , Angiografia por Tomografia Computadorizada/métodos , Feminino , Humanos , Doenças Vasculares Periféricas/diagnóstico por imagem , Doenças Vasculares Periféricas/etiologia , Artéria Radial/diagnóstico por imagem , Espasmo/diagnóstico por imagem , Espasmo/etiologia
14.
Reprod Biomed Online ; 38(6): 979-989, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30926178

RESUMO

The aim of this study was to evaluate whether polycystic ovary syndrome (PCOS) is a risk factor for female sexual dysfunction (FSD) by conducting a systematic review and meta-analysis. The databases PubMed, EMBASE and the Cochrane Library were searched for relevant studies. The association between PCOS and risk of FSD was assessed by relative risk or standard mean differences with 95% confidence interval. The protocol for this meta-analysis is available from PROSPERO (CRD42018102247). Overall, 2626 participants (mean age 25-36 years) were included from 10 studies (five cross-sectional and five case-control studies), 1163 of whom were women with PCOS. The pooled results from eight included studies providing the number of cases revealed no significant association between PCOS and increased risk of FSD (RR = 1.09, 95% CI 0.9 to 1.32; heterogeneity: I2 = 11.0%). The combined overall standard mean difference from five studies reporting Female Sexual Function Index (FSFI) scores showed that patients with PCOS had similar values in total FSFI scores compared with healthy controls (standard mean difference = -0.03, 95% CI -0.12 to 0.05; heterogeneity: I2 = 0.0%). Sensitivity analyses yielded similar results. This meta-analysis suggests no direct association between PCOS and risk of FSD. Well-controlled trials with large sample sizes, however, are needed to validate this evidence.

15.
J Sex Med ; 16(3): 434-446, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30773498

RESUMO

BACKGROUND: Mounting evidence has emerged suggesting that patients with Parkinson's disease (PD) are susceptible to sexual dysfunction (SD). AIM: To better clarify the relationship between PD and SD. METHODS: PubMed, Embase, Cochrane Library database, and PsychINFO database were systematically searched for pertinent studies evaluating sexual function in the patients with PD. This systematic review and meta-analysis have been registered on PROSPERO (ID: CRD42018108714; http://www.crd.york.ac.uk/PROSPERO). OUTCOMES: The association between PD and SD was assessed using relative risk (RR) with 95% CI. The quality of evidence was ranked by the GRADE profiler. RESULTS: 11 observational studies met the predefined criteria for inclusion, enrolling 30,150 subjects from both the PD group and healthy control group (mean age 54.6-75.1 years). Synthesis results revealed that PD was associated with an elevated risk of SD in males (7 studies; 1.79; 95% CI = 1.26-2.54, P = .001; heterogeneity: I2 = 73.2%, P < .001). However, when restricted to female subjects, the combined RR from 3 eligible studies suggested a lack of significant association between PD and SD (RR = 1.3, 95% CI = 0.64-2.61, P = .469; heterogeneity: I2 = 80.0%, P = .007). The GRADE profiler indicated the overall quality of the evidence was low in studies including males and very low in studies including females. CLINICAL IMPLICATIONS: The current meta-analysis indicated that men with PD were more likely to experience SD than those without PD. In female subjects, however, PD seemed to not be associated with a high prevalence of SD compared with healthy controls. Based on these findings, patients with PD should be routinely assessed for sexual functioning, especially males. STRENGTHS & LIMITATIONS: This is the first systematic review and meta-analysis of the association between PD and the risks of SD in both males and females. However, substantial heterogeneities were detected across the included studies. CONCLUSION: A hazardous effect of PD for developing SD was detected in men but not in women. As a result, sexual function assessment and appropriate therapy are recommended for men with PD in clinical practice. Zhao S, Wang J, Xie Q, et al. Parkinson's Disease Is Associated with Risk of Sexual Dysfunction in Men but Not in Women: A Systematic Review and Meta-Analysis J Sex Med 2019;16:434-446.

16.
Eur J Pharmacol ; 848: 55-61, 2019 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-30707957

RESUMO

Various studies have shown that flavones have several pharmacological activities including anti-allergy activities. However, the bioavailability of oral flavones is very low, and whether inhaled administration can improve efficacy in respiratory disease models is unclear. In the present study, the anti-allergic activities of inhaling 5,7-dimethoxy-3,4'-dihydroxyflavone (MHF), a synthetic flavonoid, was investigated by comparison with disodium cromoglycate (DSCG) and nedocromil sodium (NS) in rat allergic models. In an anti-DNP-IgE-induced asthmatic model, inhaled MHF dose-dependently inhibited the increase in airway resistance after antigen challenge. In an ovalbumin (OVA)-induced asthmatic model, inhaled MHF showed significant suppression of airway hyperresponsiveness; a decrease in eosinophil and neutrophil counts, IL-4, IL-5 and leukotriene D4 in bronchoalveolar lavage fluid; a reduction in total IgE and OVA-specific IgE levels in serum; and suppression of eosinophil infiltration in lung tissue after antigen challenge. The efficacy of inhaled MHF was comparable to that of NS and DSCG. In conclusion, based on these findings, the report for the first time that that inhaled MHF may be a potential drug for the treatment of allergic asthma.


Assuntos
Antialérgicos/administração & dosagem , Asma/tratamento farmacológico , Modelos Animais de Doenças , Flavonoides/administração & dosagem , Administração por Inalação , Animais , Antialérgicos/química , Asma/induzido quimicamente , Asma/metabolismo , Relação Dose-Resposta a Droga , Feminino , Flavonoides/química , Ovalbumina/toxicidade , Ratos , Ratos Sprague-Dawley
17.
BMC Anesthesiol ; 19(1): 7, 2019 01 10.
Artigo em Inglês | MEDLINE | ID: mdl-30630421

RESUMO

BACKGROUND: This study aimed at developing and validating a scoring model to stratify critically ill patients after cardiac surgery based on risk for dysphagia, a common but often neglected complication. METHODS: Data were prospectively collected and analyzed from January 2016 to June 2017 from 395 consecutive post cardiac surgery patients at the cardiac care unit (CCU) at a single center; 103 (26.1%) developed dysphagia. Univariate and multivariate logistic analyses were used to identify independent predictors for dysphagia. The survival nomogram was developed on the basis of a multivariable Cox model, which allowed us to obtain survival probability estimations. The predictive performance of the nomogram was verified for discrimination and calibration. Areas under receiver operating characteristic curve analysis were used to illustrate and evaluate the diagnostic performance of the novel model. RESULTS: The final novel scoring model, named SSG-OD, consists of three independent factors: gastric intubation (OR = 1.024, 95% CI 1.015-1.033), sedative drug use duration (OR = 1.031, 95% CI 1.001-1.063) and stroke or not (OR = 6.182, 95% CI 3.028-12.617). SSG-OD identified patients at risk for dysphagia with sensitivity of 68.5% and specificity of 89.0% (OR = 0.833, 95% CI: 0.782-0.884). The positive and negative likelihood ratios were 6.22 and 0.35. CONCLUSIONS: The novel SSG-OD scoring system to risk stratify CCU patients for dysphagia is an easy-to-use bedside prognostication aid with good predictive performance and the potential to reduce aspiration incidence and accelerate recovery.

18.
J Sex Med ; 16(2): 155-167, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30692026

RESUMO

INTRODUCTION: Exposure to air pollution poses a risk for morbidity in multiple diseases. However, the role of ambient air pollutant emissions in public sexual health is just beginning to be understood and remains controversial. AIM: We have determined to elucidate the specific role of gasoline vehicle exhaust (VE), a crucial source and toxicant of air pollution, in the penile erectile function via a rat model. METHODS: 40 male Sprague Dawley rats, 12 weeks of age, were used in this experiment. Except for the control group (10 rats), rats were equally exposed to VE for total 2 hours, 4 hours, and 6 hours daily for 3 months consecutively. During each VE exposure periods, particulate matter (PM) mass concentrations of PM1, PM2.5, and PM10 were 1.43 ± 0.036, 1.45 ± 0.033, and 1.47 ± 0.037 mg/m3, respectively. MAIN OUTCOME MEASURE: Erectile function, pulmonary function, serum inflammatory factors, and histologic examinations of the lung and penile tissues were evaluated. RESULTS: Our study indicates that in vivo, 4-hour, and 6-hour daily exposure to VE causes significant reduction of erectile function, as judged by intracavernous pressure measurement. Meanwhile, we have observed that the 4-hour and 6-hour VE exposure rats exhibited remarkable increased levels of serum inflammatory factors, decreased total lung capacity and chord compliance, thickened alveoli septum, destroyed alveoli, pulmonary fibrosis, as well as down-regulation of the messenger RNA and protein expression of endothelial and neuronal nitric oxide synthase in the penile tissue when compared with normal control rats. CLINICAL IMPLICATIONS: We speculated that the underlying mechanisms of VE inducing erectile dysfunction could be attributed to systemic inflammation, pulmonary dysfunction, and the reduction of nitric oxide synthase activity in the corpus cavernosum. STRENGTH & LIMITATIONS: For the first time, our study revealed the deleterious effect of VE on penile erection in vivo. However, the VE exposure model might not entirely mimic the natural condition of ambient air pollution. CONCLUSION: Our results raise concerns about the potential role played by long-term exposure to gasoline VE in the development of erectile dysfunction. Zhao S, Wang J, Xie Q, et al. Elucidating Mechanisms of Long-Term Gasoline Vehicle Exhaust Exposure-Induced Erectile Dysfunction in a Rat Model. J Sex Med 2019;16:155-167.

19.
Seizure ; 65: 80-88, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30639977

RESUMO

PURPOSE: Sexual functioning is an important factor influencing quality of life. Mounting evidence suggests that both male and female patients with epilepsy (PWE) have an increased risk of developing sexual dysfunction (SD). The aim of this meta-analysis was to quantify the association between epilepsy and the risk of SD. METHODS: PubMed, Embase, and Cochrane Library database were systematically searched to identify the pertinent studies focusing on the association between epilepsy and SD. Relative risk (RR) for SD with 95% confidence interval (CI) was calculated. The overall quality of the evidence was generated by applying the GRADE-profiler. This meta-analysis was registered on the PROSPERO (ID: CRD42018103572, http://www.crd.york.ac.uk/PROSPERO). RESULTS: Nine studies (3 cross-sectional, 5 case-control, and 1 cohort) were included in this meta-analysis, for a total of 1556 subjects and 599 cases of epilepsy. Synthetic results demonstrated that epilepsy was associated with an increased risk of female SD (6 studies, pooled RR = 2.69, 95%CI: 1.48-4.89, P = 0.001; heterogeneity: I2 = 88.9%, P < 0.001) as well as male SD (3 studies, pooled RR = 4.85, 95%CI: 2.01-11.7, P < 0.001; heterogeneity: I2 = 74.2%, P = 0.021). The GRADE-profiler showed that the rate of events of SD on average in the PWE and the controls were 383/659 (58.1%) and 168/1017 (16.5%), respectively. The quality of evidence across outcomes was MODERATE. CONCLUSIONS: Epilepsy is significantly associated with an increased risk of SD in both sexes. These findings suggest that both clinicians and patients should recognize that epilepsy has a potential hazardous effect on sexual functioning.


Assuntos
Epilepsia/complicações , Caracteres Sexuais , Disfunções Sexuais Fisiológicas/etiologia , Bases de Dados Bibliográficas/estatística & dados numéricos , Epilepsia/epidemiologia , Feminino , Humanos , Masculino , Disfunções Sexuais Fisiológicas/epidemiologia
20.
Huan Jing Ke Xue ; 40(1): 310-317, 2019 Jan 08.
Artigo em Chinês | MEDLINE | ID: mdl-30628288

RESUMO

We studied the loading of N-(2-Aminoethyl)-3-aminopropyl trimethoxy silane from aqueous solution as a monolayer on magnetite nanoparticles and examined the phosphate removal performance of the generated adsorbent (silane monolayer on magnetite nanoparticles, abbreviated as MSMNPs). The results indicate that silane monolayer adsorption on magnetite nanoparticles occurred at low concentrations (equilibrium silane concentration <300 mg·L-1) and a~100% surface monolayer coverage by silane could be established at a temperature ≥ 90℃ or a NaCl concentration ≥ 0.1 mol·L-1. The FTIR and XPS spectra indicate that hydrolyzed silane and magnetite nanoparticles are chemically linked. The loading of silane as a monolayer did not significantly change the saturation magnetization. The adsorption isotherm of phosphate based on MSMNPs fit the Langmuir model better, with a calculated maximum adsorption capacity reaching 7.59 mg·g-1. The adsorption and desorption of phosphate by MSMNPs are very fast, exceeding 90% within 30 min and reaching an equilibrium within 1 h. In conclusion, MSMNPs are novel adsorbents with easy separability, which enables the repeated use, and rapid adsorption and desorption of pollutants.

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