Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 42
Filtrar
1.
Glob Public Health ; 19(1): 2381093, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-39052957

RESUMEN

ABSTRACTWhile telemedicine has shown promise for diagnosis and treatment, its integration into specialised clinics and mainstream healthcare is slow. A study at Sultan Qaboos University Hospital, Oman, investigated parental perceptions of virtual clinics and telemedicine experiences among parents of children with neurodevelopmental disorders (NDD) conducted from January 2021 to January 2022; the cross-sectional study involved 130 participants. The study revealed that 70% of participants were male, and the mean age of the children was 6.1 ± 0.26 years. Regarding telemedicine awareness, 53% of respondents were informed, yet encountered obstacles such as poor internet service and lack of awareness. Despite challenges, 46% of respondents viewed telemedicine positively. Parents showed significant differences in their perception of virtual interviews based on interview purpose (P = 0.034), clinic type (P < 0.001), internet service quality (P = 0.029), timing conflicts (P = 0.001), lack of technology experience (P = 0.041), and awareness gaps (P = 0.012). Our study identified challenges for parents of children with NDD in utilising telehealth, primarily stemming from limited awareness and internet connectivity issues. To enhance telemedicine quality, we suggest improving internet infrastructure and promoting telemedicine awareness. Further research is needed to optimise telemedicine implementation for both diagnosis and intervention in children with NDD.


Asunto(s)
Trastornos del Neurodesarrollo , Padres , Telemedicina , Humanos , Omán , Masculino , Femenino , Padres/psicología , Niño , Estudios Transversales , Centros de Atención Terciaria , Adulto , Preescolar , Encuestas y Cuestionarios
2.
Nanoscale ; 16(27): 12909-12917, 2024 Jul 11.
Artículo en Inglés | MEDLINE | ID: mdl-38904324

RESUMEN

Structural features like 3D nano-size, ultrathin thickness and amorphous/crystalline interfaces play crucial roles in regulating charge separation and active sites of photocatalysts. However, their co-occurrence in a single catalyst and exploitation in photocatalytic CO2 reduction (PCR) remains challenging. Herein, nano-sized bismuth oxychloride spheres (BiOCl-NS) confining three-layered nanoplates (∼2.2 nm ultrathin) and an amorphous/crystalline interface are exclusively developed via intrinsic engineering for an enhanced sacrificial-reagent-free PCR system. The results uncover a unique synergism wherein the three-layered nanoplates accelerate electron-hole separation, and the amorphous/crystalline interface exposes electron-localized active sites (Bi-Ovac-Bi). Consequently, BiOCl-NS exhibit efficient CO2 adsorption and activation with the lowering of rate-determining-step energy barriers, leading to remarkable CO production (102.72 µmol g-1 h-1) with high selectivity (>99%), stability (>30 h), and apparent quantum efficiency (0.51%), outperforming conventional counterparts. Our work provides a facile structural engineering approach for boosting PCR and offers distinct synergism for advancing diverse materials.

3.
Int J Appl Basic Med Res ; 13(2): 117-120, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37614832

RESUMEN

We present an extremely rare case of Hughes‒Stovin syndrome, of which we believe <60 cases have been reported in English medical literature. We wish to draw the attention of our fellow cardiologists to consider this when coming across patients with pulmonary artery aneurysm in their clinical practice. Appropriate treatment, if instituted promptly and early in the course of the disease, has the potential to induce remission.

5.
Int J Appl Basic Med Res ; 13(1): 29-39, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37266524

RESUMEN

Introduction: Pulmonary hypertension (PH) is characterized by pulmonary vascular remodeling, right heart failure, and reduced survival. PH can be PH without left ventricular (LV) dysfunction - pulmonary arterial hypertension (PAH) - (Dana point Class I) and PH with LV dysfunction - pulmonary venous hypertension (PVH) - (Dana point Class II). Whatever the underlying cardiac disease, the presence of PH in patients with heart failure is associated with poor prognosis. Right ventricular dysfunction by ventricular interdependence can cause LV dysfunction. Objective: We aim to provide a distinction between PAH and PVH by echocardiography. Methods: Retrospective cross-sectional single-center data of 1075 subjects having PH as defined by echocardiography was collected. These were segregated into mild, moderate, and severe categories. The same cohort of PH subjects was also segregated by E/e' derived pulmonary capillary wedge pressure (PCWP) values. Echocardiographic measurements and effort tolerance in Mets were analyzed. Data for 707 normal subjects were taken from an earlier published study on normative echocardiographic measurements of healthy Indians. Results: Our findings show that PAH and PVH can be distinguished using PCWP value >15 mmHg obtained by applying Nagueh's formulaon E/e'. Conclusion: We recommend that PCWP derived from E/e' should be reported with pulmonary artery systolic pressure measurement to distinguish between PAH and PVH.

6.
Int J Dev Disabil ; 69(2): 190-200, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37025335

RESUMEN

This study aimed to systematically assess the impact of clinical and demographic variables on the diagnostic yield of Whole Exome Sequencing (WES) when applied to children with Autism Spectrum Disorder (ASD) from a consanguineous population. Ninety-seven children were included in the analysis, 63% were male and 37% were females. 77.3% had a suspected syndromic aetiology of which 68% had co-existent central nervous system (CNS) clinical features, while 69% had other systems involved. The diagnostic yield of WES in our cohort with ASD was 34%. Children with seizures were more likely to have positive WES results (46% vs. 31%, p = 0.042). Probands with suspected syndromic ASD aetiology showed no significant differential impact on the diagnostic yield of WES.

7.
J Colloid Interface Sci ; 629(Pt A): 233-242, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36081204

RESUMEN

All-inorganic lead-free halide double perovskites have emerged as rising star photocatalysts to substitute the toxic lead-based hailed perovskites (LHPs) owing to their unique photophysical properties. Nevertheless, their photocatalytic activities toward CO2 reduction are still far from comparable with the LHPs, associated with severe charge recombination and sluggish surface catalytic reaction. Herein, a delicate 0D/2D heterojunction of Cs2AgBiBr6/Bi2WO6 (CABB/BWO) was assembled by in-situ growing cubic CABB nanocrystals on the flat surface of BWO nanosheets via a facile hot-injection method. Density functional theory (DFT) calculations disclose that the work function and Fermi level difference between CABB and BWO give rise to charge redistribution at the interface upon the formation of the heterojunction, creating an internal electric field (IEF). Upon light irradiation, the IEF enables the photogenerated electron transfer from BWO to CABB via direct Z-scheme electron transfer mode with striking spatial charge separation as verified by in-situ X-ray photoelectron (XPS) and electron spin resonance (ESR) spectra. Consequently, the CABB/BWO heterojunction realizes 7-fold higher photocatalytic activity than pristine CABB with significant electron consumption rate of 87.66 µmol g-1h-1 under simulated solar light (AM 1.5G).

8.
Sensors (Basel) ; 22(19)2022 Sep 25.
Artículo en Inglés | MEDLINE | ID: mdl-36236369

RESUMEN

Recent activities in the oil and gas industry have shown an increasing need for monitoring engagements, such as in shipping, logistics, exploration, drilling, or production. Hence, there is a need to have asset management of these offshore assets (or facilities). Much of the offshore infrastructure is currently approaching or past its operational life expectancy. The study presents an overview on asset management of offshore facilities towards monitoring, safe practices, maintenance, and sustainability. This study outlines the major considerations and the steps to take when evaluating asset life extensions for an aging offshore structure (or asset). The design and construction of offshore structures require some materials that are used to make the structural units, such as offshore platform rigs, ships, and boats. Maintaining existing assets in the field and developing new platforms that are capable of extracting future oil and gas resources are the two key issues facing the offshore sector. This paper also discusses fault diagnosis using sensors in the offshore facilities. The ocean environment is constantly corrosive, and the production activities demand extremely high levels of safety and reliability. Due to the limited space and remote location of most offshore operations, producing cost-effective, efficient, and long-lasting equipment necessitates a high level of competence. This paper presents the guidelines on asset monitoring, sustainable maintenance, and safety practices for offshore structures. In this study, the management of offshore structures were also presented with some discussions on fault monitoring using sensors. It also proposes sustainable asset management approaches as guidelines that are advised, with policy implications.


Asunto(s)
Cáusticos , Industrias , Reproducibilidad de los Resultados , Navíos
9.
Int J Dev Disabil ; 68(5): 773-780, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36210904

RESUMEN

The prevalence of autism in the Arabian Gulf region is on the rise leading to overstretching of the pre-existing intervention services. The World Health Organization Caregiver Skills Training Program is a novel renovation being studied around the globe to overcome the scarcity of resources, improve autistic children's outcome and empower parents with comparable results to therapist-based models. Recently, Oman achieved great success in advocating for autism and initiated the first screening program for autism in the region. This review aims to use a Strength, Weakness, Opportunities and Threats (SWOT) analysis matrix to investigate the potential for using a parent-mediated intervention program as a supplementary approach to the currently used therapist-based intervention model in the country as an example for Gulf region.

10.
Sudan J Paediatr ; 22(1): 90-97, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35958076

RESUMEN

This study aims to detect an association between potential maternal predictors and neonatal anthropometry in Oman. A retrospective cross-sectional study was conducted in Sultan Qaboos University Hospital, Oman, between November 2014 and November 2015. The study included all term healthy Omani neonate-mother pairs. Summary descriptive statistics of neonatal (N) weight (Wt), length (L), head circumference (HC), and potential maternal (M) characteristics were collected. Multiple linear regression analysis was used to assess associations between maternal predictors and neonatal anthropometry. The study cohort identified 2,783 eligible pairs. The data showed that parity, maternal weight (MWt), and height (MHt) explained a significant amount of the variance in birth weight (F-ratio = 115.4, p-value < 0.001, and R 2 adjusted = 0.12). MWt and MHt were significant predictors of length (F-ratio = 65.3, p-value < 0.001, and R 2 adjusted = 0.048). The predictors of HC were MWt, MHt, and parity (F-ratio = 53.1, p-value < 0.001, and R 2 adjusted = 0.57). Primiparous mothers were 2.2 times at greater risk of delivering low birth weight (LBW) newborns. There were no significant differences in anthropometric outcomes between consanguineous and nonconsanguineous groups. Maternal weight and height had significant positive associations with the three newborn anthropometric outcomes. Additionally, primiparity was associated with the increased risk of LBW. Consanguinity was not associated with LBW in term Omani neonates.

11.
J Colloid Interface Sci ; 612: 782-791, 2022 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-35032929

RESUMEN

Developing near-infrared responsive (NIR) photocatalysts is very important for the development of solar-driven photocatalytic systems. Metal sulfide semiconductors have been extensively used as visible-light responsive photocatalysts for photocatalytic applications owing to their high chemical variety, narrow bandgap and suitable redox potentials, particularly the benchmark ZnIn2S4. However, their potential as NIR-responsive photocatalysts is yet to be reported. Herein, for the first time demonstrated that upconversion nanoparticles can be delicately coupled with hierarchical ZnIn2S4 nanorods (UCNPs/ZIS) to assemble a NIR-responsive composite photocatalyst, and as such composite is verified by ultraviolet-visible diffuse reflectance spectra and upconversion luminescence spectra. As a result, remarkable photocatalytic CO and CH4 production rates of 1500 and 220 nmol g-1h-1, respectively, were detected for the UCNPs/ZIS composite under NIR-light irradiation (λ ≥ 800 nm), which is rarely reported in the literature. The remarkable photocatalytic activity of the UCNPs/ZIS composite can be understood not only because the heterojunction between UCNPs and ZIS can promote the charge separation efficiency, but also the intimate interaction of UCNPs with hierarchical ZIS nanorods can enhance the energy transfer. This finding may open a new avenue to develop more NIR-responsive photocatalysts for various solar energy conversion applications.

12.
J Gen Intern Med ; 37(4): 802-808, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-34331212

RESUMEN

BACKGROUND: Social determinants of health play a fundamental role in a patient's health status. In recent years, health systems across the nation have implemented numerous strategies aimed at identifying and addressing the health-related social needs of the patients they serve. Despite the influx of peer-reviewed research highlighting outcomes of specific health-related social needs interventions, the spectrum of practices utilized by primary care clinics has not been established. OBJECTIVE: To determine the range of ways primary care clinics address health-related social needs after identification and initial contact with a frontline staff person is completed. DESIGN: We conducted 12 semi-structured, in-person interviews with staff from purposively sampled clinics. If the interview included more than one staff person, all participants were interviewed together. PARTICIPANTS: Twenty-one administrative staff and frontline clinic personnel with experience in 24 separate primary care clinics in the Minneapolis-St. Paul, Minnesota metropolitan area. APPROACH: Interviews focused on the range of health-related social needs processes utilized by clinics, including staff titles, referral procedures, and barriers to addressing needs. Interview recordings were transcribed and coded using thematic analysis. KEY RESULTS: Thematic analysis identified variation in four key areas involving how clinics address patients' health-related social needs after identification and initial contact by frontline staff: clinic personnel involved in addressing needs, clinic referral processes, "resource" and "success" definitions, and barriers to accessing community-based supports. CONCLUSIONS: This study describes the large variation in primary care clinic practices to address health-related social needs after they are identified. The results suggest challenges to standardization and real-world application of previously published studies. Our findings also highlight the opportunity for improved relationships between health systems and community-based agencies.


Asunto(s)
Instituciones de Atención Ambulatoria , Derivación y Consulta , Humanos , Minnesota/epidemiología , Atención Primaria de Salud , Investigación Cualitativa
13.
J Colloid Interface Sci ; 607(Pt 2): 1180-1188, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34571305

RESUMEN

Dye-sensitized system holds great potential for the development of visible-light-responsive photocatalysts not only because it can enhance the light absorption and charge separation efficiency of the systems but also because it can tune the band structure of catalysts. Herein, two-dimensional (2D) Fe-MOF nanosheets (Fe-MNS) with a LUMO potential of 0.11 V (vs. RHE) was prepared. Interestingly, it has been found that when the 2D Fe-MNS catalyst was functionalized with visible-light-responsive [Ru(bpy)]32+ as a dye-sensitizer, the electrons from the [Ru(bpy)]32+ can effectively inject into the 2D Fe-MNS, which resulted in a negative shift of the LUMO potential of the 2D Fe-MNS to -0.15 V (vs. RHE). Consequently, the [Ru(bpy)]32+/Fe-MNS catalytic system exhibits a sound photocatalytic CO2-to-CO activity of 1120 µmol g-1h-1 under visible-light-irradiation. The photocatalytic CO production was further ameliorated by regulating the electronic structure of the 2D Fe-MNS by doping Co ions, achieving a remarkable photocatalytic activity of 1637 µmol g-1h-1. This work further supports that the dye-sensitized system is an auspicious strategy worth exploring with different catalysts for the development of visible-light-responsive photocatalytic systems.

14.
BMJ Glob Health ; 6(10)2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-34625456

RESUMEN

INTRODUCTION: Access to sanitation facilities (toilets or latrines) greatly improves human health. Low community sanitation coverage may lead to increased exposure to pathogens for households both with and without a sanitation facility. METHODS: We created a retrospective cohort using Demographic and Health Surveys from 1990 through 2018. Using regression with matched women as a random intercept, we assessed the association between community-level sanitation coverage and neonatal mortality (Poisson model, n=1 254 862 live births, 187 datasets), small birth size (logit model, n=1 058 843 live births, 187 datasets) and anaemia (logit model, n=1 304 626 women, 75 datasets). RESULTS: Among women with household sanitation, the incidence of neonatal death (incidence rate ratio: 0.85, 95% CI 0.77 to 0.93), the odds of small birth size (OR: 0.81, 95% CI 0.76 to 0.87) and anaemia (OR: 0.82, 95% CI 0.79 to 0.85) were lower for women in communities with 100% sanitation coverage compared with 1%-30% (p≤0.001 for all). There was no difference in neonatal deaths between women in communities with 31%-99% sanitation coverage compared with 1%-30% (p≥0.05). Among women without household sanitation, there were no differences in neonatal mortality by community sanitation (p≥0.05). The odds of small birth size were decreased (OR: 0.91, 95% CI 0.87 to 0.97, p=0.003) for women in communities with 61%-99% sanitation coverage compared with 1%-30%; there was no association with the other community sanitation categories (p≥0.05). The odds of anaemia were increased (OR: 1.08, 95% CI 1.06 to 1.11, p<0.001) for women living in communities with 0% sanitation coverage compared with 1%-30%, but no association with the other community sanitation categories (p≥0.05). CONCLUSION: Community sanitation coverage is associated with improved maternal and neonatal outcomes, particularly among women with household sanitation. This suggests that the impact of sanitation coverage on maternal and neonatal health is underestimated unless the community-level effects are considered.


Asunto(s)
Salud del Lactante , Saneamiento , Composición Familiar , Femenino , Humanos , Recién Nacido , Estudios Retrospectivos , Encuestas y Cuestionarios
15.
Sultan Qaboos Univ Med J ; 21(3): 386-393, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34522403

RESUMEN

OBJECTIVES: This study aimed to explore the intelligence quotient (IQ) profile among children with autism spectrum disorder (ASD) and identify the most important subscales that predict the IQ. The analysis of an intellectual profile with age and gender differentials and the identification of a battery of subscales of intelligence are important for clinical management of ASD among children and for facilitating placement for remedial and educational services. METHODS: Data were collected through an exploratory study of 100 children aged between three and 13 years, who were referred to the department of child health and development in Sultan Qaboos University Hospital, a tertiary hospital, in Oman between June 2016 and June 2019. RESULTS: Among the 100 participants of this study, 79% were male, resulting in a male-female ratio of 4:1. The mean of full-scale IQ was found to be 68.6 ± 18.1. Furthermore, the mean of nonverbal IQ (73.5 ± 17.5) was significantly higher than that of verbal IQ (65.5 ± 17.6). Finally, more than half (61%) of the children were observed to have had mild to moderate impairment in their IQ levels. CONCLUSIONS: Age and gender showed no significant association with IQ level. The regression analysis identified nonverbal fluid reasoning, nonverbal visual-spatial processing, nonverbal working memory and verbal knowledge as the significant predictors of total IQ. The crucial dimensions of verbal and nonverbal IQ identified in this study can be used to evaluate complicated cases.


Asunto(s)
Trastorno del Espectro Autista , Adolescente , Trastorno del Espectro Autista/complicaciones , Trastorno del Espectro Autista/diagnóstico , Niño , Preescolar , Cognición , Femenino , Humanos , Inteligencia , Pruebas de Inteligencia , Masculino , Omán
16.
Sultan Qaboos Univ Med J ; 21(3): 465-471, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34522414

RESUMEN

OBJECTIVES: This study aimed at evaluating advanced parental age as a risk factor for autism spectrum disorder (ASD) in an Omani cohort. METHODS: This case-control study compared 278 ASD cases with 722 gender-matched controls, retrieved from the electronic records of the Developmental Paediatric Clinic, Sultan Qaboos University Hospital, Muscat, Oman, between January 2015 and June 2016. RESULTS: Most ASD cases were male (76.6%) and mostly diagnosed between 3-4 years of age, with more than 50% of the cases originating from Muscat and Batinah governorates. Compared to controls, mothers from the case group had significantly higher educational levels (post-secondary education versus high school/no formal education: odds ratio [OR] = 1.62, 95% confidence interval [CI]: 1.197-2.192). In a multivariate logistic regression, the OR of maternal age as a risk for ASD increased dramatically with advancing age category (using age <25 as reference, OR = 3.39, 6.12, 7.86 and 13.13 for age categories 25-29, 30-34, 35-39 and ≥40 years, respectively). The ORs of advancing paternal age as a risk for ASD were also statistically significant (using age <30 as reference, OR = 2.20, 2.36 and 3.12 for age categories 30-34, 35-39 and 40-44 years, respectively); however, there was a drop in the effect with paternal age ≥45 years (OR = 1.42; 95% CI: 0.64-3.15). CONCLUSION: Both maternal and paternal increased age were associated with a higher risk of ASD; however, the association was more pronounced and more consistent with advanced maternal age compared to paternal age.


Asunto(s)
Trastorno del Espectro Autista , Adulto , Trastorno del Espectro Autista/epidemiología , Trastorno del Espectro Autista/etiología , Estudios de Casos y Controles , Niño , Femenino , Humanos , Masculino , Persona de Mediana Edad , Omán/epidemiología , Padres , Edad Paterna
18.
RSC Adv ; 11(52): 32730-32739, 2021 Oct 04.
Artículo en Inglés | MEDLINE | ID: mdl-35493571

RESUMEN

2,{2}',7,{7}'-Tetrakis(N,N-di-p-methoxyphenylamine)-9,{9}'-spiro-bi-fluorene(spiro-OMeTAD) has often been used as a hole-transporting material (HTM) in mesoscopic perovskite solar cells (PSCs). However, its potential applications are limited due to its poor conductivity of approximately 10-6 to 10-5 cm2 V s-1 in pristine form, and this influences the stability and intrinsic hole conductivity of the device. In this work, a Mn complex [(Mn(Me-tpen)(ClO4)2 -)]2+ is introduced as a p-dopant to improve the properties of spiro-OMeTAD-based PSCs, including the optical, electrical, conductivity, and stability properties. Interestingly, the use of spiro-OMeTAD with an optimum concentration (1.0% w/w) of Mn complex in mesoscopic PSCs achieves a remarkable power conversion efficiency of 17.62% with a high conductivity of 99.05%. Spiro-OMeTAD with Mn complex as a p-dopant under UV-vis spectroscopy shows a different peak at 520 nm, confirming that oxidation occurs upon the addition of the Mn complex. The enhanced efficiency of the PSCs may be attributed to an increase in the optical and electrical properties of the HTM in the spiro-OMeTAD doped Mn complex.

19.
Braz. dent. sci ; 24(3): 1-14, 2021. tab, ilus
Artículo en Inglés | BBO, LILACS | ID: biblio-1282177

RESUMEN

Objective: To evaluate fracture resistance and survival rate of IPS Empress CAD versus Polished Celtra Duo ceramic laminate veneers. Material and Methods:Thirty-six ceramic laminate veneers were fabricated for maxillary anterior teeth. The patients were divided into two groups according to the material Group 1(control group) fabricated from IPS Empress CAD laminate veneers and group 2 (intervention group) fabricated from Polished Celtra Duo laminate veneers. Standardized the same preparation with butt joint design and chamfer finish line located supra gingival were performed for all the teeth. The fabrication of the veneers was performed using Cad\Cam (Ceramill motion) machine, with software (Exocad). The veneers surfaces were treated and silanated according to the manufacture instruction of each ceramic and enamel surfaces were etched where total etch adhesive protocol was obeyed using BISCO. Follow up sessions were done every two months up to one year for each patient using dental probe and operator vision to evaluate the fracture, survival rate, marginal adaptation, sensitivity and caries. according to USPHS criteria (United States Public Health Service). This was performed by an experienced, blinded investigator. Results: Fracture resistance, marginal adaptation, retention, caries and sensitivity were evaluated according to the criteria of USPHS and we found there is no significant difference as both groups scaled zero score. Conclusion: Both IPS Empress Cad and Polished Celtra Duo laminate veneers revealed successful clinical performance in terms of fracture resistance, marginal adaptation, retention, and sensitivity after one year follow up period (AU)


Objetivo: Avaliar a resistência à fratura e a taxa de sobrevivência de laminados de cerâmica IPS Empress CAD versus Celtra Duo polidos. Material e Métodos: Trinta e seis facetas cerâmicas laminadas foram confeccionadas para dentes anteriores superiores. Os pacientes foram divididos em dois grupos de acordo com o material Grupo 1 (grupo controle) confeccionado com laminados IPS Empress CAD e grupo 2 (grupo intervenção) confeccionado com laminados Celtra Duo polidos. A mesma forma de preparo e acabamento de chanfro localizado supra-gengival padronizados foram realizados para todos os dentes. A confecção das facetas foi realizada em máquina Cad \ Cam (Ceramill motion), com software (Exocad). As superfícies laminadas foram tratadas e silanizadas de acordo com as instruções do fabricante de cada cerâmica e as superfícies de esmalte foram condicionadas seguindo o protocolo adesivo de condicionamento ácido total com BISCO. Sessões de acompanhamento foram realizadas a cada dois meses durante um ano para cada paciente usando sonda exploradora e visão do operador para avaliar a fratura, taxa de sobrevivência, adaptação marginal, sensibilidade e cárie; de acordo com os critérios USPHS (Serviço de Saúde Pública dos Estados Unidos). Isso foi realizado por um investigador experiente e cego. Resultados: a resistência à fratura, adaptação marginal, retenção, cárie e sensibilidade foram avaliadas de acordo com os critérios da USPHS e não encontramos diferença significativa, pois ambos os grupos escalonaram pontuação zero. Conclusão: As facetas laminadas IPS Empress Cad e Celtra Duo polido revelaram desempenho clínico bem-sucedido em termos de resistência à fratura, adaptação marginal, retenção e sensibilidade após um período de acompanhamento de um ano. (AU)


Asunto(s)
Humanos , Adaptación Marginal Dental , Caries Dental , Coronas con Frente Estético , Sensibilidad de la Dentina , Resistencia Flexional
20.
Saudi J Biol Sci ; 27(12): 3641-3646, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-33304175

RESUMEN

Garcinia kola (G. kola), is a plant characterized by its hypoglycemic properties. We recently reported our findings on the extracts of G. kola, in which we found that it prevented the loss of inflammation-sensible neuronal populations in streptozotocin (STZ)-induced rat models of type 1 diabetes mellitus (T1DM). In the present study we assessed the effect of G. kola bioactive compounds extracted successively with water, hexane, methylene chloride, ethyl acetate, and butanol. through analyzing biochemical markers of oxidative stress, inflammation, and metabolic function in STZ-induced diabetic animals. Animals made diabetic by a single injection with STZ (60 mg/kg, i.p.), were treated daily with either vehicle solution, insulin, or G. kola extracts and its fractions from the first to the 6th-week post-injection. Biochemical markers; glucose, insulin, C-peptide, neuron-specific enolase (NSE), creatinine kinase, glutathione peroxidase, malondialdehyde (MDA), resistin, soluble E-selectin (SE-Selectin), and C-reactive proteins (CRP) levels in the sera were determined in the study groups. A marked increase in blood glucose (209.26% of baseline value), and a decrease in body weight (-12.37%) were observed in diabetic control animals but not in animals treated with either insulin or G. kola extracts and its fractions. The sub-fraction F5, G. kola ethyl acetate had the highest bioactive activities, with a maintenance of blood sugar, malondialdehyde, C-peptide, E-selectin, C-reactive protein (CRP) and neuron-specific enolase (NSE) to levels and responses comparable to healthy non-diabetic vehicle group and the positive control diabetic insulin-treated group. Our findings suggest that G. kola may have a strong therapeutic potential against T1DM and its microvascular complications.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA