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1.
Oncol Rep ; 44(5): 2317-2318, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33000270

RESUMO

The authors of the above article drew to our attention that they had identified three instances of data overlapping between data panels, suggesting that data purportedly showing results obtained under different experimental conditions had been derived from the same original source. Comparing between the two figures, two pairs of panels in Fig. 4B (the Mimics control and blank experiments for the U87 and U251 cell lines) were shown to be overlapping, and a further pair of panels showed overlapping data in Fig. 6B (the data panels for the miR­375 mi + .pCDNA/RWDD3 and miR­375 mi + .pCDNA experiments for the U87 cell line). The authors were able to re­examine the original data files and retrieve the correct data panels. The errors in these figures arose through inadvertently assembling Figs. 4 and 6 incorrectly. The revised versions of Figs. 4 and 6, featuring the corrected data panels for the Mimics control and blank experiments for the U87 and U251 cell lines in Fig. 4B, and the correct data for the U87 cell line in Fig. 6B, are shown opposite and on the next page, respectively. Note that the corrections to the data shown in these Figures do not affect the overall conclusions reported in the paper. The authors are grateful to the Editor of Oncology Reports for allowing them the opportunity to publish this Corrigendum, and apologize to the readership for any inconvenience caused. [the original article was published in Oncology Reports 39: 1825-1834, 2018; DOI: 10.3892/or.2018.6261].

2.
J Cell Physiol ; 2020 Oct 09.
Artigo em Inglês | MEDLINE | ID: mdl-33037615

RESUMO

Transient receptor potential melastatin member 8 (TRPM8), a Ca2+ -permeable nonselective cation channel activated by cold and cooling agents, mediates allodynia. Dysfunction or abnormal expression of TRPM8 has been found in several human cancers. The role of ubiquitination in the regulation of TRPM8 function remains poorly understood. Here, we identified the ubiquitin (Ub)-ligase E3, tripartite motif-containing 4 (TRIM4), as a novel interaction partner of TRPM8 and confirmed that the TRIM4-TRPM8 interaction was mediated through the SPRY domain of TRIM4. Patch-clamp assays showed that TRIM4 negatively regulates TRPM8-mediated currents in HEK293 cells. Moreover, TRIM4 reduced the expression of TRPM8 on the cell surface by promoting the K63-linked ubiquitination of TRPM8. Further analyses revealed that the TRPM8 N-terminal lysine residue at 423 was the major ubiquitination site that mediates its functional regulation by TRIM4. A Ub-activating enzyme E1, Ub-like modifier-activating enzyme 1 (UBA1), was also found to interact with TRPM8, thereby regulating its channel function and ubiquitination. In addition, knockdown of UBA1 impaired the regulation of TRPM8 ubiquitination and function by TRIM4. Thus, this study demonstrates that TRIM4 downregulates TRPM8 via K423-mediated TRPM8 ubiquitination and requires UBA1 to regulate TRPM8.

3.
Int J Psychophysiol ; 2020 Oct 13.
Artigo em Inglês | MEDLINE | ID: mdl-33065140

RESUMO

Self-enhancement, a motivational tendency to view oneself in a positive light, is widespread among Westerners, but this tendency is substantially weaker among East Asians. At present, however, it remains inconclusive whether this cultural difference reflects genuine variation in spontaneous engagement in this motivational tendency or is driven by individuals' deliberate efforts to present oneself in culturally acceptable ways. In the present research, we sought to address this issue by examining whether culture modulates early attentional bias to self-name, presented in the context of positive (vs. negative) situations. Both European American and Asian American participants (N = 64) read a series of scenarios depicting either a positive or a negative life situation and were subsequently presented with their name or names of famous people or strangers. European Americans showed greater P2, an ERP component of early attentional arousal, when the self-name was primed with positive (vs. negative) situations. In contrast, Asian Americans' P2 in response to the self-name was not moderated by situation prime. Moreover, the degree to which P2 was enhanced in positive (vs. negative) situations was negatively correlated with Asian cultural values. These results demonstrate that cultural variation in self-enhancement may reflect genuinely held beliefs about the self, manifested automatically at an early stage of attentional processing.

4.
J Sci Food Agric ; 2020 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-33063324

RESUMO

BACKGROUND: Codonopsis pilosula and C. tangshen are both plants widely used in traditional Chinese medicine. Polysaccharides, which are the primary active components of them, are thought to be in important for their extensive use. In this study, two neutral polysaccharide fractions of C. pilosula (CPPN) and C. tangshen (CTPN) were obtained by fractionation on a DEAE-Sepharose column and characterized. RESULTS: It was confirmed that the neutral polymers CPPN and CTPN were ß-(2-1) linked inulin-type fructans with non-reducing terminal glucose, and a degree of polymerization (DP) of 19.6 and 25.2, respectively. The anti-oxidant and prebiotic activities in vitro were assayed based on IPEC-J2 cell lines and five strains of Lactobacillus. Results from CPPN and CTPN indicated both effects of increasing the antioxidant defense on intestinal epithelial cells through enhancing cell viability, improving expressions oftotal antioxidant capacity (T-AOC), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD) and catalase (CAT), reducing the level of malondialdehyde (MDA) and lactic dehydrogenase (LDH).The prebiotic activity of CPPN and CTPN was demonstrated by the promoting effect on Lactobacillus proliferation in vitro. The different biological activities obtained between the two fractions are probably due to the different DP and thus molecular weights of CPPN and CPTN. CONCLUSION: The inulin fractions from C. pilosula and C. tangshen were natural sources of potential intestinal antioxidants as well as prebiotics, which will be valuable for further studies and new applications of inulin-containing health products. This article is protected by copyright. All rights reserved.

5.
J Sci Food Agric ; 2020 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-33063326

RESUMO

BACKGROUND: Oxidized phlorotannin could be used as protein cross-linking agents to produce high-quality fish gel products. Phlorotannin can be easily induced to form quinone compounds in an oxidizing environment, while o-quinone has been proven to be a reactive, electrophilic intermediate that easily reacts with proteins to form rigid molecular crosslinking network. The objective of this study was to investigate the synergistic effects of ultraviolet A (UVA) irradiation (1 h, 15 W/m2 ) and different concentrations of Laminaria japonica (L. japonica) phlorotannin extracts (PTE) on the gel properties of grass carp myofibrillar protein (MP). RESULTS: UVA treatment and PTE could synergistically improve the MP gel properties more than PTE alone (P<0.05). At 625 mmol kg-1 MP PTE alone, the gel strength and cooking yield reached 3.10±0.16 g·cm and 47.45±0.35 %, respectively, while with the same level of PTE plus UVA, they became 4.26±0.19 g·cm and 53.89±1.54 %, respectively. The three-dimensional network structure of the gel (with PTE+UVA) showed higher connectivity and tightness than that of the control group (no treatment). CONCLUSION: The synergistic effects of PTE and UVA could effectively induce crosslinking of grass carp MP, which could lead to an improvement of the MP gel quality. These findings would provide a new technical approach to produce high quality protein gel products in fish processing industry. This article is protected by copyright. All rights reserved.

7.
Mar Pollut Bull ; 161(Pt A): 111742, 2020 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-33075697

RESUMO

In this study, we investigated the specific bacterial distribution and the response of bacterial communities to shifts in environmental factors in the subtropical Beibu Gulf, southern China. The abundances of Actinobacteria, Bacilli, Planctomycetia, Thermoleophilia, Anaerolineae, and Synechococcophycideae were significantly higher in high eutrophic samples than in medium eutrophic and oligotrophic samples. Bacterial alpha-diversity was found greater in high eutrophication samples than in the other samples. Besides, Ponticaulis koreensis, Nautella italic, Anaerospora hongkongensis, Candidatus Aquiluna rubra, and Roseovarius pacificus were sensitive to trophic variation and thus could be used as eco-markers. In addition, the relative abundances of functional genes involving carbohydrate and amino acid metabolism were very high among the samples. We also found temperature, Chl-a, TDN and NO3- were the main environmental drivers of bacterial community structure. Overall, this study provides new insight into the composition of bacterial community and function response to gradients of eutrophication in Beibu Gulf.

8.
Nanoscale ; 2020 Oct 19.
Artigo em Inglês | MEDLINE | ID: mdl-33074280

RESUMO

MXenes, a new class of two-dimensional materials with excellent performance, are promising materials for wearable energy storage devices. However, the lack of sufficient interaction between various MXene particles makes it difficult to translate the exceptional performance from the nanoscale to macroscale. Additionally, the intrinsic characteristic of easy oxidation limits their practical applications. Herein, inspired by the structure of wood, a biomimetic core-shell MXene@graphene oxide (MX@GO) fiber was fabricated using GO as a mechanical layer to wrap MXenes. The GO layer could easily assemble MXene particles into macroscale materials and protect them from oxidation. Therefore, the as-fabricated core-shell MX@GO fiber showed a high tensile strength (290 MPa) and excellent electrical conductivity (2400 S m-1). Notably, the conductivity of the biomimetic fiber only decreased to 1800 S m-1 with a reduction of about 30% at 100 °C. This work paves the way to fabricate MXene-based fibers with freely designed functionalities and morphologies, which are suitable for various high-value fabric-based applications.

9.
Surv Ophthalmol ; 2020 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-32866468

RESUMO

Diabetic retinal disease remains a leading cause of vision loss despite currently available screening methods, ocular treatments, and efforts to control metabolic dysfunction. It is now understood that diabetes damages the entire retina and the cellular components of the neurovascular unit. Multiple studies have demonstrated impairment of various aspects of retinal function across the spectrum of retinopathy severity. Here we review these tests, the principles underlying their use, clinical data from multiple publications, the strengths and limitations of the studies, and prospects for their application to understand the pathophysiology of diabetic retinal disease and monitor its response to therapy. We focus on visual acuity, contrast sensitivity, color vision, visual field, and dark adaptation and their use to understand the pathophysiology of diabetic retinopathy and as potential endpoints for clinical trials.

10.
Artigo em Inglês | MEDLINE | ID: mdl-32911594

RESUMO

Polycyclic aromatic hydrocarbon (PAH) emissions from the combustion of household solid coal for cooking and heating cause great harm to public health in China, especially in less developed areas. Children are one of the most susceptible population groups at risk of indoor air pollutants due to their immature respiratory and immune systems. However, information on PAH exposure of children is limited due to limited monitoring data. In this study, we aimed to assess the seasonal differences of PAHs in classrooms, analyze the pollutant sources, and calculate the incremental lifetime cancer risk attributable to PAHs in Shanxi Provence. A typical school using household coal combustion in Shanxi Province was selected. Fine particulate matter (PM2.5)samples were collected by both individual samplers and fixed middle-flow samplers during the heating and non-heating seasons in December 2018 and April 2019. The PAH concentrations in PM2.5 samples were analyzed by a gas chromatograph coupled to a mass spectrometer. The results showed that PAH concentrations in PM2.5 varied between 89.1 ng/m3 in the heating season and 1.75 ng/m3 in the non-heating season. The mean concentrations of benzo[a]pyrene (BaP), a carcinogenic marker of PAHs, were 10.3 and 0.05 ng/m3 in the heating and non-heating seasons, respectively. Source allocation analysis of individual portable and passive samplers revealed that the main contributors during heating and non-heating seasons were coal combustion and gasoline sources, respectively. According to the results of a Monte Carlo simulation, the incremental lifetime cancer risk values from the inhalation of PAHs in the heating and non-heating seasons were 3.1 × 10-6 and 5.7 × 10-8, respectively. The significant increase in PAHs and the incremental lifetime cancer risk in the heating season indicates that children are more exposed to health threats in winter. Further PAH exposure control strategies, including reducing coal usage and promoting clean fuel applications, need to be developed to reduce the risk of PAH-induced cancer.

11.
Brief Bioinform ; 2020 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-32866969

RESUMO

MicroRNA (miRNA) plays an important role in the occurrence, development, diagnosis and treatment of diseases. More and more researchers begin to pay attention to the relationship between miRNA and disease. Compared with traditional biological experiments, computational method of integrating heterogeneous biological data to predict potential associations can effectively save time and cost. Considering the limitations of the previous computational models, we developed the model of deep-belief network for miRNA-disease association prediction (DBNMDA). We constructed feature vectors to pre-train restricted Boltzmann machines for all miRNA-disease pairs and applied positive samples and the same number of selected negative samples to fine-tune DBN to obtain the final predicted scores. Compared with the previous supervised models that only use pairs with known label for training, DBNMDA innovatively utilizes the information of all miRNA-disease pairs during the pre-training process. This step could reduce the impact of too few known associations on prediction accuracy to some extent. DBNMDA achieves the AUC of 0.9104 based on global leave-one-out cross validation (LOOCV), the AUC of 0.8232 based on local LOOCV and the average AUC of 0.9048 ± 0.0026 based on 5-fold cross validation. These AUCs are better than other previous models. In addition, three different types of case studies for three diseases were implemented to demonstrate the accuracy of DBNMDA. As a result, 84% (breast neoplasms), 100% (lung neoplasms) and 88% (esophageal neoplasms) of the top 50 predicted miRNAs were verified by recent literature. Therefore, we could conclude that DBNMDA is an effective method to predict potential miRNA-disease associations.

13.
J Hazard Mater ; 400: 123209, 2020 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-32947742

RESUMO

This study investigated the effects of different nitrogen (N) forms on Cadmium (Cd) uptake and accumulation in dwarf Polish wheat (DPW) seedlings, which were grown under Cd stress with N-Null, NH4+-N, NO3--N and NH4+-N + NO3--N. We measured plant growth and determined Cd uptake, translocation, accumulation, subcellular distribution and chemical forms in the roots and shoots of DPW seedlings. We also analyzed saccharide concentrations, and the transcript levels of genes encoding metal transporters in the roots of DPW seedlings. In the absence of NO3--N, addition of NH4+-N reduced roots Cd concentration, FCW (Cd in cell wall), FS (Cd in soluble fraction) and FE (inorganic Cd) concentrations, and induced the expression of four genes encoding metal transporters in roots, while it promoted Cd translocation to shoots. In the presence of NO3--N, addition of NH4+-N increased roots Cd concentration, FCW and FW concentrations, and induced the expression of 22 genes encoding metal transporters in roots. Regardless of NH4+-N level, addition of NO3--N increased roots Cd concentration, FCW, FS, FW (water-soluble Cd), FNaCl (pectates and protein Cd), FHAc (undissolved Cd phosphate) and lactose concentrations, and also induced the expression of genes encoding metal transporters in roots. Overall, NH4+-N differently regulated Cd uptake and accumulation in DPW seedlings in the absence or presence of NO3--N, while NO3--N greatly increased Cd uptake and accumulation in the presence of NH4+-N compared to the absence of NH4+-N. These patterns of Cd alteration likely arose due to different N forms altering Cd subcellular distribution and chemical forms, lactose concentration and the expression of metal transporter genes.

14.
Zhongguo Gu Shang ; 33(9): 831-6, 2020 Sep 25.
Artigo em Chinês | MEDLINE | ID: mdl-32959570

RESUMO

OBJECTIVE: From the perspective of clinical application to analyze the effectiveness and reliability of CPC/PMMA bone cement in percutaneous kyphoplasty (PKP) for the treatment of elderly patients with osteoporotic thoracolumbar fractures. METHODS: A retrospective analysis was performed on 62 patients with osteoporotic compression fracture of single-vertebral thoracic or lumbar segment who underwent PKP surgery and had a bone density less than or equal to -3.0 SD from February 2016 to December 2016. Among them, 23 patients were in CPC/PMMA group, with an average age of (77.6±2.2) years old, 39 patients in PMMA group, with an average age of (77.1±1.1) years old. The indexes between two groups were compared, including the visual analogue scale (VAS), height ratio of anterior vertebra (AVHR), local Cobb angle, cement leakage, new adjacent vertebral fracture(NAVF). RESULTS: There were no significant difference in gender, age, follow-up time and preoperative VAS, AVHR, local Cobb angle between two groups (P>0.05), at the 1 day after operation, VAS, AVHR, local Cobb angle in all patients got obvious improvement (P<0.05), which was no significant difference at 1 day after operation and final follow-up (P>0.05). At the same time, there was no statistically significant difference in the incidence of new adjacent vertebral fracture and cement leakage (P>0.05). The pain in both groups continued to improve at follow up after operation (P<0.05), the local Cobb angle increased (P<0.05) and AVHR decreased slightly (P<0.05). However, the images of conventional methods (X-ray or CT) could not find signs about CPC degeneration and new bone ingrowth. CONCLUSION: CPC/PMMA composite bone cement is safe and reliablein PKP for treatment of elderly patients with osteoporotic thoracolumbar fractures, which can effectively relieve pain and maintain vertebral body stability. It has the same curative effect as PMMA bone cement. It was worthy to research more in future, although no direct evidences support the CPC/PMMA composite bone cement can reduce the incidence of adjacent vertebral fracture, CPC degeneration or new bone ingrowth.


Assuntos
Fraturas por Compressão , Cifoplastia , Fraturas por Osteoporose , Fraturas da Coluna Vertebral , Vertebroplastia , Idoso , Cimentos para Ossos , Fosfatos de Dinucleosídeos , Humanos , Polimetil Metacrilato , Reprodutibilidade dos Testes , Estudos Retrospectivos , Resultado do Tratamento
15.
Zhen Ci Yan Jiu ; 45(9): 751-61, 2020 Sep 25.
Artigo em Chinês | MEDLINE | ID: mdl-32959560

RESUMO

OBJECTIVE: To systematically review the effects of moxibustion on serum cytokines in experimental animals with rheumatoid arthritis. METHODS: PubMed, Embase, Web of Science, The Cochrane Library, CNKI, VIP, Wanfang Data, and CBM were searched for animal experiments on moxibustion intervention for rheumatoid arthritis. Related data were extracted, and RevMan 5.3 was used to perform a meta-analysis of outcome measures, including serum tumor necrosis factor-α (TNF-α), interleukin-1 (IL-1), interleukin-6 (IL-6), vascular endothelial growth factor (VEGF), interleukin-17 (IL-17), interleukin-2 (IL-2), interferon-γ (IFN-γ), receptor activator of nuclear factor-kappa B ligand (RANKL), transforming growth factor-ß (TGF-ß), and degree of swelling of diseased joint. RESULTS: A total of 18 studies were included. The detection methods included radioimmunoassay and ELISA and the experimental animal species included rats and rabbits. The studies on serum TNF-α and degree of swelling of diseased joint had publication bias. Meta-analysis showed that the moxibustion group had significant reductions in the serum levels of TNF-α, IL-1, IL-2, IL-6, VEGF, IL-17, and RANKL, significant increases in the serum levels of TGF-ß and IFN-γ, and a significant reduction in the degree of swelling of diseased joints in model animals. CONCLUSION: Moxibustion can effectively regulate levels of the serum cytokines in experimental animals of rheumatoid arthritis and thus reduce inflammatory response and alleviate the swelling of diseased joints.

16.
Sci Rep ; 10(1): 15937, 2020 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-32985536

RESUMO

Diabetic retinopathy (DR) is a severe retinal disorder that can lead to vision loss, however, its underlying mechanism has not been fully understood. Previous studies have taken advantage of Optical Coherence Tomography (OCT) and shown that the thickness of individual retinal layers are affected in patients with DR. However, most studies analyzed the thickness by calculating summary statistics from retinal thickness maps of the macula region. This study aims to apply a density function-based statistical framework to the thickness data obtained through OCT, and to compare the predictive power of various retinal layers to assess the severity of DR. We used a prototype data set of 107 subjects which are comprised of 38 non-proliferative DR (NPDR), 28 without DR (NoDR), and 41 controls. Based on the thickness profiles, we constructed novel features which capture the variation in the distribution of the pixel-wise retinal layer thicknesses from OCT. We quantified the predictive power of each of the retinal layers to distinguish between all three pairwise comparisons of the severity in DR (NoDR vs NPDR, controls vs NPDR, and controls vs NoDR). When applied to this preliminary DR data set, our density-based method demonstrated better predictive results compared with simple summary statistics. Furthermore, our results indicate considerable differences in retinal layer structuring based on the severity of DR. We found that: (a) the outer plexiform layer is the most discriminative layer for classifying NoDR vs NPDR; (b) the outer plexiform, inner nuclear and ganglion cell layers are the strongest biomarkers for discriminating controls from NPDR; and (c) the inner nuclear layer distinguishes best between controls and NoDR.

17.
Hum Immunol ; 2020 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-32950268

RESUMO

To discover immune factors that can predict the progression of COVID-19, we evaluated circulating immune cells and plasma cytokines in COVID-19 patients. We found that T cells, including CD4+ T cells and CD8+ T cells, were significantly decreased in severe COVID-19 symptoms but not in mild symptoms, in comparison with healthy people. T cells remained at a low level after recovery from severe COVID-19. CD4+CD25+CD127low Treg-enriched cells were significantly increased in either mild or severe COVID-19 patients, regardless of recovery or not. Moreover, in either mild or severe COVID-19 patients, Treg-enriched cells up-regulated CD25 and down-regulated CD127. After recovery, CD25 was partially down-regulated but still higher than the normal level, while CD127 returned to the normal level in mild patients but not severe patients. B cells were decreased in mild patients and further decreased in severe patients, and remained low after recovery. NK cells were decreased only in severe COVID-19, with a tendency to return to the normal level after recovery. Plasma IL-6 and IL-10 were both elevated in severe patients but not in mild patients. After recovery, IL-6 remained higher than its normal level, while IL-10 returned to the normal level. Binary logistic regression analysis indicated that CD4+ T cells, B cells, IL-6, and IL-10 were significantly associated with COVID-19 severity. Therefore, these parameters are indicators of COVID-19 severity. Dynamic monitoring of these parameters would benefit therapy planning and prognosis evaluation.

18.
Curr Pharm Des ; 2020 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-32938344

RESUMO

Neurological diseases bring great mental and physical torture to the patients, and have long-term and sustained negative effects on families and society. The attention to neurological diseases is increasing, and the improvement of the material level is accompanied by an increase in the demand for mental level. The p75 neurotrophin receptor (p75NTR) is a low-affinity neurotrophin receptor and involved in diverse and pleiotropic effects in the developmental and adult central nervous system (CNS). Since neurological diseases are usually accompanied by the regression of memory, the pathogenesis of p75NTR also activates and inhibits other signaling pathways, which has a serious impact on the learning and memory of patients. The results of studies shown that p75NTR is associated with LTP/LTD-induced synaptic enhancement and inhibition, suggest that p75NTR may be involved in the progression of synaptic plasticity. And its pro-apoptotic effect is associated with activation of proBDNF and inhibition of proNGF, and TrkA/p75NTR imbalance leads to pro-survival or pro-apoptotic phenomena. It can be inferred that p75NTR mediates apoptosis in the hippocampus and amygdale, which may affect learning and memory behavior. This article mainly discusses the relationship between p75NTR and learning memory and associated mechanisms, which may provide some new ideas for the treatment of neurological diseases.

20.
FEMS Microbiol Ecol ; 2020 Sep 29.
Artigo em Inglês | MEDLINE | ID: mdl-32990746

RESUMO

Understanding the effects of eutrophication on heterotrophic bacteria, a primary responder to eutrophication, is critical for predicting the responses of ecosystems to marine environmental pollution. Vibrio are indigenous in coastal water and of significance to geochemical cycling and public health. In this study, we investigated the diversity and assembly features of Vibrio, as well as their relationship with the environmental factors in the subtropical Beibu Gulf. We found that the alpha-diversity of Vibrio increased in parallel with the trophic state they occupy. A Mantel test indicated that the trophic state was correlated to Vibrio beta-diversity, and the correlation gradually strengthened at higher trophic states. Variation partitioning analysis suggested that the geographic distance was an important factor impacting the variables of Vibrio communities in all the samples, but nutrients exerted more influence in the more highly eutrophic samples. Our results demonstrated that stochastic processes govern the turnover of marine Vibrio communities in the Beibu Gulf, and that ecological drift was the most important process for the assembly of the Vibrio communities.

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