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1.
BMC Public Health ; 24(1): 953, 2024 Apr 03.
Artículo en Inglés | MEDLINE | ID: mdl-38570765

RESUMEN

OBJECTIVE: The diagnosis of hidden hearing loss (HHL) in calm state has not yet been determined, while the nutritional status is not involved in its pathogenic risk factors. In utero iron deficiency (ID) may delay auditory neural maturation in infants. We evaluated the association between ID and HHL as well as the modification effect of socioeconomic status (SES) on this association in newborns. STUDY DESIGN: We included 859 mother-newborns from the baseline of this observational northeast cohort. Data on exposure assessment included iron status [maternal hemoglobin (Hb) and neonatal heel prick serum ferritin (SF)] and SES (occupation, education and income). Auditory neural maturation was reflected by auditory brainstem response (ABR) testing and electrocochleography (ECochG). RESULTS: Iron status and SES were independently and jointly associated with the prediction of neonatal HHL by logistic and linear regression model. The mediation effects were performed by Process. ID increased absolute latency wave V, interpeak latency (IPL) III-V, and summting potentials (SP) /action potentials (AP), which were combined as HHL. Low SES showed the highest risk of HHL and the highest levels of related parameters in ID newborns. Moreover, after Corona Virus Disease 2019 (COVID-19) were positive, preschool children who experience ID in neonatal period were more likely to suffer from otitis media with effusion (OME). High SES also showed similar risk effects. CONCLUSION: Both low and high SES may strengthen the risk of ID on neonatal HHL in Northeast China.


Asunto(s)
Deficiencias de Hierro , Madres , Lactante , Femenino , Preescolar , Humanos , Recién Nacido , 60707 , Hierro , Clase Social
2.
Immun Inflamm Dis ; 11(11): e1071, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-38018587

RESUMEN

BACKGROUND: Insulin resistance (IR) is considered as a major factor initiating type 2 diabetes mellitus and can lead to a reduction in glucose uptake that mainly occurs in the liver. Astragalus polysaccharide (APC), extracted from the traditional Chinese medicine, has been recorded to suppress IR. However, the underlying mechanism remains inadequately explored. METHODS: IR was induced in HepG2 cells which further underwent APC treatment. Cell viability was determined by cell counting kit-8 assay. Pretreatment with AG490, an inhibitor of signal transducer and activator of transcription 5 (STAT5) signaling, was performed for investigating the influence of STAT5 on APC. Glucose uptake level was reflected by 2-deoxyglucose-6-phosphate content determined through colorimetric assay. Expression levels of insulin-like growth factor 1 (IGF-1), IGF-1 receptor (IGF-1R), phosphorylated-STAT5/STAT5, and p-protein kinase B (AKT)/AKT in the cells were assessed by Western blot. Radioimmunoassay (RIA) was used to detect IGF-1 secretion in the cells. RESULTS: APC at doses of 10 and 20 mg increased the viability of HepG2 cells with/without IR induction, and abrogated IR-induced inhibition of glucose intake. Meanwhile, APC (10 mg) offset IR-induced inhibition on the expressions of IGF-1R and IGF-1, the activation of AKT and STAT5, and the secretion of IGF-1 in HepG2 cells. More importantly, the reversal effect of APC on IR-induced alterations in HepG2 cells was counteracted by AG490. CONCLUSION: APC ameliorates IR in HepG2 cells through activating the STAT5/IGF-1 pathway.


Asunto(s)
Diabetes Mellitus Tipo 2 , Resistencia a la Insulina , Humanos , Factor I del Crecimiento Similar a la Insulina/metabolismo , Proteínas Proto-Oncogénicas c-akt , Células Hep G2 , Factor de Transcripción STAT5/metabolismo , Glucosa/farmacología , Polisacáridos/farmacología
3.
iScience ; 26(11): 108296, 2023 Nov 17.
Artículo en Inglés | MEDLINE | ID: mdl-38026186

RESUMEN

Mixed-dimensional heterostructures have drawn significant attention due to their intriguing physical properties and potential applications in electronic and optoelectronic nanodevices. However, limited by the lattice matching, the preparation of heterostructures is experimentally difficult and the underlying growth mechanism has not been well established. Here, we report a three-step seeding epitaxial growth strategy for synthesizing mixed-dimensional heterostructures of one-dimensional microwire (MW) and two-dimensional atomic thin film. Our growth strategy has successfully realized direct epitaxial growth of WSe2 film on WOx MW and significantly improves the quality of the epitaxial WSe2 monolayer, which is evidenced by the remarkably enhanced photoluminescence (PL). More intriguingly, the as-synthesized WOx MWs exhibit a strong nonlinear optical response due to the enhancement effect of the core (WOx)-shell (WSe2) nanocavity. Our work provides a feasible route for direct growth of WOx-based mixed-dimensional heterostructures, which possess potential applications in high-performance optoelectronic devices.

4.
Psychiatry Investig ; 20(9): 789-798, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37794660

RESUMEN

OBJECTIVE: Subthreshold attention-deficit/hyperactivity disorder (ADHD) has been suggested to be a "morbid condition" which also needs medical attention. METHODS: The present study recruited 89 children with subthreshold ADHD (sADHD), 115 children with diagnosed ADHD (cADHD), and 79 healthy controls (HC) to explore the clinical manifestation, executive functions (EFs) of sADHD, and the caregiver strain. The clinical manifestation was evaluated through clinical interviews and parent-reports. Executive functions were assessed both experimentally and ecologically. Caregiver strain was measured by a parent-reported questionnaire. RESULTS: For the clinical manifestation, both sADHD and cADHD indicated impairments when compared with HC. The comorbidities and the scaled symptoms indicated that the externalizing behaviors were relatively less serious in sADHD than cADHD, whereas the internalizing behaviors between two groups were comparable. For ecological EFs, sADHD scored between cADHD and HC in inhibition and working memory. For experimental EFs, sADHD was comparable to cADHD in inhibition, shifting, and was worse than cADHD in verbal working memory. For the caregiver strain, all scores of sADHD were between that in cADHD and that in HC. CONCLUSION: Our present findings supported the suggestion of subthreshold ADHD as "morbid condition," which should be treated with caution in clinical practice, especially for the internalizing behaviors and some key components of EFs.

5.
Materials (Basel) ; 16(13)2023 Jun 28.
Artículo en Inglés | MEDLINE | ID: mdl-37444985

RESUMEN

Reinforced concrete (RC) is the result of a combination of steel reinforcing rods (which have high tensile) and concrete (which has high compressive strength). Additionally, the prediction of long-term deformations of RC flexural structures and the magnitude of the influence of the relevant material and geometric parameters are important for evaluating their serviceability and safety throughout their life cycles. Empirical methods for predicting the long-term deformation of RC structures are limited due to the difficulty of considering all the influencing factors. In this study, four popular surrogate models, i.e., polynomial chaos expansion (PCE), support vector regression (SVR), Kriging, and radial basis function (RBF), are used to predict the long-term deformation of RC structures. The surrogate models were developed and evaluated using RC simply supported beam examples, and experimental datasets were collected for comparison with common machine learning models (back propagation neural network (BP), multilayer perceptron (MLP), decision tree (DT) and linear regression (LR)). The models were tested using the statistical metrics R2, RAAE, RMAE, RMSE, VAF, PI, A10-index and U95. The results show that all four proposed models can effectively predict the deformation of RC structures, with PCE and SVR having the best accuracy, followed by the Kriging model and RBF. Moreover, the prediction accuracy of the surrogate model is much lower than that of the empirical method and the machine learning model in terms of the RMSE. Furthermore, a global sensitivity analysis of the material and geometric parameters affecting structural deflection using PCE is proposed. It was found that the geometric parameters are more influential than the material parameters. Additionally, there is a coupling effect between material and geometric parameters that works together to influence the long-term deflection of RC structures.

6.
J Prosthet Dent ; 130(4): 564-572, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35667889

RESUMEN

STATEMENT OF PROBLEM: Conventional impression techniques for complete arch implant-supported prostheses are technique-sensitive. Stereophotogrammetry (SPG) and intraoral scanning (IOS) may offer an alternative to conventional impression making. PURPOSE: The purpose of this prospective study was to compare the accuracy of IOS and SPG for complete arch implant scans and to evaluate the passive fit of frameworks fabricated with SPG. MATERIAL AND METHODS: Laboratory scanning of gypsum casts, SPG, and IOS were performed for all participants. The data regarding the abutment platform were superimposed to calculate the 3D deviation of SPG and IOS compared with that of laboratory scanning as an evaluation of accuracy. The effect of implant position and number on accuracy was analyzed. The more accurate technique between SPG and IOS was used to fabricate the titanium frameworks, as was laboratory scanning. The passive fit of the frameworks was assessed by clinical examination, the Sheffield test, and panoramic radiography. RESULTS: Seventeen participants (21 arches, 120 implants) were included. The accuracy of SPG ranged from 2.70 µm to 92.80 µm, with a median (Q1, Q3) of 17.00 (11.68, 22.50) µm, which was significantly more accurate than that of IOS, ranging from 21.30 µm to 815.60 µm, with a median (Q1, Q3) of 48.95 (34.78, 75.88) µm. No significant correlation was found between position or number of implants and 3D deviation in the SPG group. A weak positive correlation was found between implant number and 3D deviation in the IOS group. SPG and laboratory scanning were used to fabricate titanium frameworks. The passive fit between the frameworks and abutment platforms was confirmed. CONCLUSIONS: SPG, which was not affected by position or number of implants, was more accurate than IOS and comparable with laboratory scanning. The frameworks fabricated based on SPG and laboratory scanning were comparable in their passive fit. The SPG technique may be an alternative to laboratory scanning for complete arch implant scans.


Asunto(s)
Implantes Dentales , Humanos , Estudios Prospectivos , Titanio , Diseño Asistido por Computadora , Prótesis Dental de Soporte Implantado , Técnica de Impresión Dental , Imagenología Tridimensional
7.
J Prosthet Dent ; 129(1): 116-124, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36549956

RESUMEN

STATEMENT OF PROBLEM: The conventional workflow for the fabrication of implant-supported fixed complete dentures (IFCDs) is complex and makes it impossible to maintain jaw relationships. A fully digital workflow might solve this problem. PURPOSE: The purpose of this clinical study was to develop a completely digital workflow aided by a cone beam computed tomography (CBCT) scan for the fabrication of IFCDs and to evaluate the accuracy of this workflow with regard to the maintenance of jaw relationships. MATERIAL AND METHODS: All participants received a preoperative CBCT scan while wearing radiographic diagnosis dentures and occluding in the maximum intercuspal position. After the implant surgery, CBCT scanning, intraoral scanning, and stereophotogrammetry were performed to identify jaw anatomy, soft tissue, and the 3-dimensional (3D) locations of the implants, respectively. Then, all data were merged to transfer jaw relationships and generate digital casts to fabricate interim prostheses. A posttreatment CBCT scan was performed while the participants were wearing the interim prostheses and occluding in the maximum intercuspal position. The preoperative and postoperative jaw relationships were compared by CBCT cephalometric analysis. A meaningful and unacceptable difference was defined as 0.8 degrees and 2.4 degrees, respectively. RESULTS: Six participants (6 jaw relationships, 9 arches, and 58 implants) were included. All interim prostheses were stable and achieved symmetric occlusion after only minimal adjustment. A total of 18 angles were measured. Three angles revealed a meaningful minimal difference, and 1 angle revealed an unacceptable minimal difference. No prosthodontic complications were reported during the study. CONCLUSIONS: A completely digital workflow for fabricating IFCDs achieved sufficient accuracy for the maintenance of jaw relationships throughout the treatment.


Asunto(s)
Diseño Asistido por Computadora , Implantes Dentales , Humanos , Flujo de Trabajo , Tomografía Computarizada de Haz Cónico , Dentadura Completa , Implantación Dental Endoósea/métodos
8.
Front Immunol ; 13: 933594, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36439191

RESUMEN

Coxsackievirus B (CVB) is one of the major viral pathogens of human myocarditis and cardiomyopathy without any effective preventive measures; therefore, it is necessary to develop a safe and efficacious vaccine against CVB. Immunoinformatics methods are both economical and convenient as in-silico simulations can shorten the development time. Herein, we design a novel multi-epitope vaccine for the prevention of CVB by using immunoinformatics methods. With the help of advanced immunoinformatics approaches, we predicted different B-cell, cytotoxic T lymphocyte (CTL), and helper T lymphocyte (HTL) epitopes, respectively. Subsequently, we constructed the multi-epitope vaccine by fusing all conserved epitopes with appropriate linkers and adjuvants. The final vaccine was found to be antigenic, non-allergenic, and stable. The 3D structure of the vaccine was then predicted, refined, and evaluated. Molecular docking and dynamics simulation were performed to reveal the interactions between the vaccine with the immune receptors MHC-I, MHC-II, TLR3, and TLR4. Finally, to ensure the complete expression of the vaccine protein, the sequence of the designed vaccine was optimized and further performed in-silico cloning. In conclusion, the molecule designed in this study could be considered a potential vaccine against CVB infection and needed further experiments to evaluate its safety and efficacy.


Asunto(s)
Epítopos de Linfocito B , Epítopos de Linfocito T , Humanos , Vacunas de Subunidad , Simulación del Acoplamiento Molecular , Biología Computacional/métodos
9.
Medicine (Baltimore) ; 101(41): e31184, 2022 Oct 14.
Artículo en Inglés | MEDLINE | ID: mdl-36253978

RESUMEN

OBJECTIVES: This meta-analysis aimed to assess the impact of nursing interventions (e.g., educational and empathic interviewing, motor exercise, therapeutic play interventions) on the perioperative outcome of children with congenital heart disease (CHD). METHODS: We searched PubMed, Embase, Web of Science, Scopus, Cochrane, EBSCO, The Chinese National Knowledge Infrastructure, Wan Fang Data and the VIP Chinese Journal Service platform from the date of database creation to August 2021. Our study adhered to the recommendations of the Cochrane Handbook and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. RevMan 5.4 and Stata 16.0 were used to complete the meta-analysis. RESULTS: This meta-analysis showed that comprehensive nursing intervention reduced both the length of hospital stay (weighted mean difference [WMD] = -1.982, 95%CI [-2.329, -1.634], P < .001) and the related risk of post-operative complications [OR = 0.345, 95%CI (0.225, 0.528), P < .001]. In addition, nursing intervention increased parental satisfaction with the care provided [OR = 0.308, 95%CI (1.923, 6.863), P < .001]. Nursing interventions have also had a positive impact in reducing preoperative anxiety [WMD = -6.721, 95% CI (-7.194, -6.249), P < .001] and postoperative pain [WMD = -7.103, 95% CI (-7.103, -7.663), P < .001] in children. CONCLUSIONS: This meta-analysis confirms the beneficial effects of comprehensive nursing interventions in terms of reduced complication rates and shorter hospital stays. The effectiveness of comprehensive nursing in reducing anxiety and pain levels was also demonstrated. The findings support the implementation of comprehensive care interventions in the perioperative period for children with CHD to improve clinical outcomes.


Asunto(s)
Cardiopatías Congénitas , Niño , Cardiopatías Congénitas/cirugía , Humanos , Tiempo de Internación , Padres , Complicaciones Posoperatorias
10.
Front Microbiol ; 13: 975223, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36147837

RESUMEN

Coxsackievirus B (CVB), a member of Enterovirus genus of Picornaviridae, is the leading pathogen of viral myocarditis and dilated cardiomyopathy. The pathogenesis of CVB-induced myocarditis has not been completely elucidated, and no specific antiviral measurement is available presently. Circular RNAs (circRNAs) have been reported to be able to modulate viral replication and infection through bridging over non-coding RNAs (ncRNAs) and coding messenger RNAs (mRNAs). To date, the role of circRNAs in CVB infection is largely unknown. In this study, we found that hsa_circ_0076631 (circ_0076631) significantly promoted CVB type 3 (CVB3) replication. Further study showed that the underneath mechanism was circ_0076631 indirectly interacting with CVB3 through sponging miR-214-3p, which targeted the 3D-coding region of CVB3 genome to suppress viral translation. Knocking down circ-0076631 caused a suppression of CVB3 infection; thus, circ-0076631 may be a potential target for anti-CVB therapy.

11.
J Affect Disord ; 307: 133-141, 2022 06 15.
Artículo en Inglés | MEDLINE | ID: mdl-35367500

RESUMEN

BACKGROUND: Current DSM and ICD classifications of Attention-Deficit/Hyperactivity Disorder (ADHD) exclude emotional dysregulation (ED) in their diagnostic criteria, despite ED symptoms frequently co-occurring in ADHD and likely sharing common neurobiological substrates. In this study, we examined whether consideration of ED symptoms could delineate more informative "ADHD+ED" subphenotypes. METHOD: 4106 children with ADHD were recruited. ED and inattentive (IA) and hyperactive/impulsive (HI) symptoms were profiled using latent class analyses (LCA). The derived latent class (LC) subphenotypes were evaluated and validated in relation to comorbidity patterns, executive functions, and functional impairments. RESULTS: Five LC subphenotypes with ED symptoms were identified: IA/HI + ED profile (LC1); HI + ED profile (LC2); IA + ED profile (LC3); IA/HI profile (LC4); and IA profile (LC5). Cross-validation of the LCA model using support vector machine analysis confirmed 83% accuracy. ED positive (ED+ve) subphenotypes were associated with higher rates of oppositional defiant disorder, mood disorders, anxiety disorders, as well as more severe autistic traits and sluggish cognitive tempo symptoms. Higher rates of ecological executive functioning impairments (BRIEF ratings) were found among ED+ve subphenotypes (though no differences were detected by laboratory-based measures). Functional impairments were also more severe among participants with ED+ve subphenotypes. LIMITATIONS: The data for our LCA were cross-sectional and based primarily on parent ratings. CONCLUSION: Our classification model has parcellated IA, HI, and ED symptoms into novel informative subphenotypes. These classifications provide preliminary evidence that ED symptoms could serve as sentinel features to identify a potential "ADHD-complex" syndrome, which demarcates a more pervasive condition of greater severity, complexity, and impairment.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Trastorno por Déficit de Atención con Hiperactividad/psicología , Déficit de la Atención y Trastornos de Conducta Disruptiva , Niño , Cognición , Comorbilidad , Humanos , Síndrome
12.
BMC Oral Health ; 21(1): 636, 2021 12 10.
Artículo en Inglés | MEDLINE | ID: mdl-34893053

RESUMEN

BACKGROUND: To compare the accuracy of photogrammetry, intraoral scanning and conventional impression techniques for complete-arch implant rehabilitation. METHODS: A master cast containing 6 implant abutment replicas was fabricated. Group PG: digital impressions were taken 10 times using a photogrammetry system; Group IOS: intraoral scanning was performed to fabricate 10 digital impressions; Group CNV: splinted open-tray impression technique was used to fabricate 10 definitive casts. The master cast and conventional definitive casts were digitized with a laboratory reference scanner. For all STL files obtained, scan bodies were converted to implant abutment replicas using a digital library. The accuracy of a digitizer was defined by 2 main parameters, trueness and precision. "Trueness" was used to describe the deviation between test files and reference file, and "precision" was used to describe the closeness between test files. Then, the trueness and precision of three impression techniques were evaluated and statistically compared (α = 0.05). RESULTS: The median trueness was 24.45, 43.45 and 28.70 µm for group PG, IOS and CNV; Group PG gave more accurate trueness than group IOS (P < 0.001) and group CNV (P = 0.033), group CNV showed more accurate trueness than group IOS (P = 0.033). The median precision was 2.00, 36.00 and 29.40 µm for group PG, IOS and CNV; Group PG gave more accurate precision than group IOS (P < 0.001) and group CNV (P < 0.001), group CNV showed more accurate precision than IOS (P = 0.002). CONCLUSIONS: For complete-arch implant rehabilitation, the photogrammetry system showed the best accuracy of all the impression techniques evaluated, followed by the conventional impression technique, and the intraoral scanner provided the least accuracy.


Asunto(s)
Implantes Dentales , Técnica de Impresión Dental , Diseño Asistido por Computadora , Humanos , Imagenología Tridimensional , Modelos Dentales , Fotogrametría
13.
ACS Appl Mater Interfaces ; 13(14): 16019-16035, 2021 Apr 14.
Artículo en Inglés | MEDLINE | ID: mdl-33819006

RESUMEN

Recent research studies have shown that the low survival rate of liver cancer is due to drug resistance and metastasis. In the tumor microenvironment (TME), activated hepatic stellate cells (aHSCs) have been proven to favor the development of liver cancer. Hence, the combination therapy dual-targeting aHSCs and tumor cells might be an effective strategy for treatment of liver cancer. In this study, the novel multifunctional liposomes (CAPS-CUR/GA&Gal-Lip) were prepared for co-delivery of curcumin (CUR) and capsaicin (CAPS), in which glycyrrhetinic acid (GA) and galactose (Gal) were chosen as targeting ligands to modify the liposomes (Lip) for dual-targeting liver cancer. To mimic TME, a novel HSCs+HepG2 (human hepatoma cell line) cocultured model was established for the antitumor effect in vitro. The results showed that, compared to HepG2 cells alone, the cocultured model promoted drug resistance and migration by upregulating the expression of P-glycoprotein (P-gp) and Vimentin, which were effectively inhibited by CAPS-CUR/GA&Gal-Lip. The efficacy of the in vivo antitumor was evaluated by three mice models: subcutaneous H22 (mouse hepatoma cell line) tumor-bearing mice, H22+m-HSC (mouse hepatic stellate cell) tumor-bearing mice, and orthotopic H22 cells-bearing mice. The results showed that CAPS-CUR/GA&Gal-Lip exhibited lesser extracellular matrix (ECM) deposition, lesser tumor angiogenesis, and superior antitumor effect compared with the no- and/or Gal-modified Lip, which was attributed to the simultaneous blocking of the activation of HSCs and inhibition of the metastasis of tumor cells. The dual-targeting method using Lip is thus a potential strategy for liver cancer treatment.


Asunto(s)
Capsaicina/administración & dosificación , Curcumina/administración & dosificación , Resistencia a Antineoplásicos/efectos de los fármacos , Células Estrelladas Hepáticas/efectos de los fármacos , Liposomas , Neoplasias Hepáticas Experimentales/prevención & control , Neoplasias Hepáticas/tratamiento farmacológico , Metástasis de la Neoplasia/prevención & control , Animales , Capsaicina/farmacología , Curcumina/farmacología , Femenino , Células Hep G2 , Xenoinjertos , Humanos , Neoplasias Hepáticas/patología , Neoplasias Hepáticas Experimentales/tratamiento farmacológico , Neoplasias Hepáticas Experimentales/patología , Ratones , Ratones Endogámicos BALB C , Metástasis de la Neoplasia/patología
14.
J Prosthodont ; 30(5): 401-411, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33462909

RESUMEN

PURPOSE: The purpose of this meta-analysis was to assess the effect of rough threaded neck implants on marginal bone loss, compared to machined smooth neck implants. MATERIALS AND METHODS: Literature searches were performed in the Cochrane Central Register of Controlled Trials (The Cochrane Library) (up to March 04, 2020), MEDLINE (PubMed) (1966 to March 04, 2020), and EMBASE (1980 to March 04, 2020), and reference lists of relevant manuscripts and relevant systematic reviews. Grey literature was sought using Grey Literature Net-Work Service (www.opengrey.eu) and The Grey Literature Report (www.greylit.org). Randomized controlled trials and controlled clinical trials that compared the effects of machined smooth neck implants versus rough threaded neck implants on marginal bone loss were included. Two review authors selected studies, assessed trial quality, and extracted data from included studies independently. The meta-analysis was carried out with Review Manager v5.3 software that compared marginal bone loss between rough threaded neck implants and machined smooth neck implants. RESULTS: This review included 8 manuscripts (2 randomized controlled trials and 6 controlled clinical trials) from 6 clinical studies. The marginal bone loss around the rough threaded neck implants was significantly less than that around machined smooth neck ones (MD: -0.43 mm, 95% CI: -0.65 to -0.22 mm; p < 0.0001). In the subgroup with different platform connections, less marginal bone loss was observed around the rough threaded neck implants with platform switching (MD: -0.67 mm, 95% CI: -0.87 to -0.48 mm; p < 0.00001) or with regular platform (MD: -0.28 mm, 95% CI: -0.39 to -0.18 mm; p < 0.00001). The statistical analysis of the subgroups with functional loading for 3 or 6 months (MD: -0.39 mm; 95% CI: -0.61 to -0.18 mm; p = 0.0003) and 1 year or longer (MD: -0.43 mm, 95% CI: -0.65 to -0.22 mm; p < 0.0001) suggested that the rough threaded neck implants helped to reduce marginal bone loss. CONCLUSIONS: The results of this review suggested that rough threaded neck implants may be helpful in maintaining the amount of marginal bone around implants. Larger sample size, longer follow-up periods and well-conducted randomized controlled trials are necessary to further prove the validity of the findings.


Asunto(s)
Pérdida de Hueso Alveolar , Implantes Dentales , Pérdida de Hueso Alveolar/diagnóstico por imagen , Pérdida de Hueso Alveolar/etiología , Implantación Dental Endoósea , Implantes Dentales/efectos adversos , Humanos , Programas Informáticos
15.
FEBS Open Bio ; 10(12): 2578-2587, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-33012117

RESUMEN

Diabetes is a chronic metabolic disease characterized by insulin resistance (IR). SHP2 has previously been identified as a potential target to reduce IR in diabetes. Here, we examined the effects of SHP2 on glucose consumption (GC), IR level and the expression of insulin receptor substrate (IRS), AKT and extracellular signal-regulated kinase (ERK)1/2 proteins in a cellular and animal model of diabetes. IR was induced in hepatocellular carcinoma (HCC) cells, and SHP2 was up-regulated or down-regulated in cells. Diabetic rats were treated with SHP2 inhibitor. GC of cells, and the weight, total cholesterol, triglycerides, fasting blood glucose, fasting insulin, homeostasis model assessment-IR index and insulin sensitivity (ISI) of the rats were analyzed. The levels of SHP2 and the activation of IRS-2, AKT and ERK1/2 in cells and rats were measured by quantitative real-time PCR (qRT-PCR) or western blot. GC was reduced, but expression of SHP2 was enhanced in IR HCC cells. Phosphorylation of IRS-2 and AKT in IR HCC cells and diabetic rats was decreased, whereas phosphorylation of ERK1/2 was enhanced. In both the cell and animal models, SHP2 knockdown enhanced GC, ameliorated IR, activated IRS-2 and AKT, and inhibited ERK1/2 phosphorylation, in contrast with the effects of SHP2 overexpression. SHP2 knockdown may enhance GC and ameliorate IR through phosphorylation of IRS-2 via regulating AKT and ERK1/2 in liver.


Asunto(s)
Diabetes Mellitus Experimental/metabolismo , Proteínas Sustrato del Receptor de Insulina/metabolismo , Hígado/metabolismo , Proteína Tirosina Fosfatasa no Receptora Tipo 11/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Animales , Células Cultivadas , Diabetes Mellitus Experimental/sangre , Diabetes Mellitus Experimental/patología , Humanos , Resistencia a la Insulina , Sistema de Señalización de MAP Quinasas , Masculino , Fosforilación , Proteína Tirosina Fosfatasa no Receptora Tipo 11/deficiencia , Ratas , Ratas Sprague-Dawley
16.
J Affect Disord ; 251: 156-161, 2019 05 15.
Artículo en Inglés | MEDLINE | ID: mdl-30925266

RESUMEN

OBJECTIVE: Major depression disorder (MDD) is one of the most prevalent mental disorders worldwide. Diagnosing depression in the early stage is crucial to treatment process. However, due to depression's comorbid nature and the subjectivity in diagnosis, an early diagnosis could be challenging. Recently, machine learning approaches have been used to process Electroencephalography (EEG) and neuroimaging data to facilitate the diagnosis. In the present study, we used a multimodal machine learning approach involving EEG, eye tracking and galvanic skin response data as input to classify depression patients and healthy controls. METHODS: One hundred and forty-four MDD depression patients and 204 matched healthy controls were recruited. They were required to watch a series of affective and neutral stimuli while EEG, eye tracking information and galvanic skin response were recorded via a set of low-cost, portable devices. Three machine learning algorithms including Random Forests, Logistic Regression and Support Vector Machine (SVM) were trained to build dichotomous classification model. RESULTS: The results showed that the highest classification f1 score was obtained by Logistic Regression algorithms, with accuracy = 79.63%, precision = 76.67%, recall = 85.19% and f1 score = 80.70% LIMITATIONS: No hospitalized patients were available; only outpatients were included in the present study. The sample consisted mostly of young adult, and no elder patients were included. CONCLUSIONS: The machine learning approach can be a useful tool for classifying MDD patients and healthy controls and may help for diagnostic processes.


Asunto(s)
Trastorno Depresivo Mayor/diagnóstico , Electroencefalografía/métodos , Medidas del Movimiento Ocular , Respuesta Galvánica de la Piel/fisiología , Aprendizaje Automático , Adulto , Algoritmos , Estudios de Casos y Controles , Femenino , Humanos , Modelos Logísticos , Masculino , Máquina de Vectores de Soporte , Adulto Joven
17.
Water Environ Res ; 89(7): 614-621, 2017 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-28105984

RESUMEN

In this study, a novel composite containing an iron based metal-organic framework (MOF) and BiOBr was successfully synthesized by a simple method, and was fully characterized by X-ray diffraction patterns, Fourier transform infrared spectra, UV-vis diffuse reflectance spectra, and transmission electron microscopy. Moreover, the photocatalytic activities of BiOBr/MIL-88B(Fe) composites and the pure materials were evaluated by measuring the degradation of Rhodamine B under visible light. The results show that the composite exhibits better photocatalytic activities than pure materials, which can be ascribed to the high adsorption capacity of MIL-88B(Fe) and the enhanced separation of photogenerated charge carriers from assembly of MIL-88B(Fe) on BiOBr. And the effects of various operating parameters such as catalyst dosage, medium pH, the mass ratio of BiOBr, and MIL-88B(Fe) and the dye initial concentration on the degradation of RhB have been studied.


Asunto(s)
Bismuto/química , Compuestos de Hierro/química , Procesos Fotoquímicos , Eliminación de Residuos Líquidos/métodos , Contaminantes Químicos del Agua
18.
Artículo en Chino | WPRIM (Pacífico Occidental) | ID: wpr-823332

RESUMEN

@#Dental implant restoration is an effective way to restore the chewing and aesthetic function for edentulous. However, dental implant restoration is facing great challenges of the lack of available bone, the maxillary sinus or inferior alveolar nerve vascular bundle, which is often necessary to carry out the related bone augmentation operation. All-on-Four technique is to use four implants in the anterior part of complete edentulous jaws, the two most anterior implants are placed axially whereas the two posterior implants are placed distally angled, to support a provisional, fixed, and immediately loaded prosthesis. The technique avoids the artificial bone substitutes implantation and maxillary sinus augmentation or other bone augmentation surgery. Besides, it could alleviate patients' psychological reaction, postoperative reaction, as well as time and money costs. It is considered a feasible treatment method to combine the application of the oblique implant and the axial implant in the treatment of the edentulous patients. This paper will elaborate on the concept of All-on-Four, the conventional technology, the evaluation research and some new viewpoints.

19.
Environ Sci Pollut Res Int ; 23(15): 15218-26, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-27098883

RESUMEN

In this study, a novel core-shell Fe3O4@MIL-101 (MIL stands for Materials of Institute Lavoisier) composite was successfully synthesized by hydrothermal method and was fully characterized by X-ray diffraction, transmission electron microscopy, Fourier-transform infrared spectra, and X-ray photoelectron spectroscopy. The composite was introduced as a catalyst to generate powerful radicals from persulfate for the removal of Acid Orange 7 in an aqueous solution. Effects of the central metal ions of MIL-101, amino group content of MIL-101, and pH were evaluated in batch experiments. It was found that both hydroxyl and sulfate radicals were generated; importantly, sulfate radicals were speculated to serve as the dominant active species in the catalytic oxidation of Acid Orange 7. In addition, a possible mechanism was proposed. This study provides new physical insights for the rational design of advanced metal-organic frameworks (MOF)-based catalysts for improved environmental remediation.


Asunto(s)
Compuestos Azo/química , Bencenosulfonatos/química , Colorantes/química , Compuestos de Hierro/química , Nanopartículas del Metal/química , Eliminación de Residuos Líquidos/métodos , Contaminantes Químicos del Agua/química , Catálisis , Complejos de Coordinación/química , Estructuras Metalorgánicas , Oxidación-Reducción , Aguas Residuales/análisis
20.
Nanotechnology ; 27(11): 115708, 2016 Mar 18.
Artículo en Inglés | MEDLINE | ID: mdl-26881419

RESUMEN

Alveolar bone loss has long been a challenge in clinical dental implant therapy. Simvastatin (SV) has been demonstrated to exert excellent anabolic effects on bone. However, the successful use of SV to increase bone formation in vivo largely depends on the local concentration of SV at the site of action, and there have been continuing efforts to develop an appropriate delivery system. Specifically, nanostructured lipid carrier (NLC) systems have become a popular type of encapsulation carrier system. Therefore, SV-loaded NLCs (SNs) (179.4 nm in diameter) were fabricated in this study, and the osteogenic effect of the SNs was evaluated in a critical-sized rabbit calvarial defect. Our results revealed that the SNs significantly enhanced bone formation in vivo, as evaluated by hematoxylin and eosin (HE) staining, immunohistochemistry, and a fluorescence analysis. Thus, this novel nanostructured carrier system could be a potential encapsulation carrier system for SV in bone regeneration applications.


Asunto(s)
Enfermedades Óseas/terapia , Lípidos/química , Nanoestructuras/química , Simvastatina/administración & dosificación , Cráneo/lesiones , Animales , Enfermedades Óseas/patología , Regeneración Ósea/efectos de los fármacos , Modelos Animales de Enfermedad , Humanos , Ensayo de Materiales , Nanoestructuras/uso terapéutico , Conejos , Simvastatina/química , Simvastatina/farmacología , Cráneo/patología
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