Indications of the extraction of symptomatic impacted third molars. A systematic review

Background: A literature review was made to determine when third molar (3M) extraction is recommended in symptomatic patients and when it is not recommended. Material and methods: A Medline (PubMed) and EMBASE search was made for articles related to indications for the extraction of 3Ms, published in the last 10 years and up until September 2018. Results: The electronic search yielded 175 articles. After eliminating duplicates, a total of 173 articles were subjected to review of the title and abstract. Only 19 studies were finally included in the systematic review. There was a well documented increase in morbidity associated to impacted 3Ms (non-restorable caries, fracture, infection, periodontal disease, repeated pericoronitis, cysts and tumors), and in the presence of disease, extraction was considered to be indicated. The extraction of 3Ms with signs and/or symptoms of periodontal disease improved periodontal health at the distal surface of the second molar. Postoperative quality of life of patients with symptomatic 3Ms and with disease improved after surgical extraction. Conclusions: Extraction is indicated in the presence of disease associated to an impacted 3M, whether symptomatic or not. In contrast, extraction is not indicated in the absence of infection or other associated disease conditions

Discriminatory molecular biomarkers of allergic and nonallergic asthma and its severity

The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. Asthma is a complex disease comprising various phenotypes and endotypes, all of which still need solid biomarkers for accurate classification. In a previous study, we defined specific genes related to asthma and respiratory allergy by studying the expression of 94 genes in a population composed of 4 groups of subjects: healthy control, nonallergic asthmatic, asthmatic allergic, and nonasthmatic allergic patients. An analysis of differential gene expression between controls and patients revealed a set of statistically relevant genes mainly associated with disease severity, i.e., CHI3L1, IL-8, IL-10, MSR1, PHLDA1, PI3, and SERPINB2. Here, we analyzed whether these genes and their proteins could be potential asthma biomarkers to distinguish between nonallergic asthmatic and asthmatic allergic subjects. Protein quantification was determined by ELISA (in serum) or Western blot (in protein extracted from peripheral blood mononuclear cells or PBMCs). Statistical analyses were performed by unpaired t-test using the Graph-Pad program. The sensitivity and specificity of the gene and protein expression of several candidate biomarkers in differentiating the two groups (and the severity subgroups) was performed by receiver operating characteristic (ROC) curve analysis using the R program. The ROC curve analysis determined single genes with good sensitivity and specificity for discriminating some of the phenotypes. However, interesting combinations of two or three protein biomarkers were found to distinguish the asthma disease and disease severity between the different phenotypes of this pathology using reproducible techniques in easy-to-obtain samples. Gene and protein panels formed by single biomarkers and biomarker combinations have been defined in easily obtainable samples and by standardized techniques. These panels could be useful for characterizing phenotypes of asthma, specifically when differentiating asthma severity.Supported in part by research grants PI13/01730 and PI17/01682, cofinanced by FEDER, CIBERES (ISCIII, 0013), and RETIC (RD09/0076/00101) from the Fondo de Investigación Sanitaria (Ministerio de Sanidad y Consumo, Spain). SB was supported by a grant from the Fundación Conchita Rábago and PI17/01682. DC was supported by a contract from Madrid regional government (PEJD-2016/BMD-2682, Sistema de Garantía Juvenil), LC-J was supported by a contract from MINECO (PEJ-2014-A- 31609, Sistema de Garantía Juvenil), and MdP was supported by a contract from Madrid regional government (PEJ-2017- AI/SAL-5938, Sistema de Garantía Juvenil), all cofinanced by The European Social Fund (ESF) and the Youth Employment Initiative (YEI

Maíz de alto contenido proteínico (Zea mays l.) en hogares rurales marginados del estado de Puebla

El déficit en ingesta diaria de proteínas y calorías registrado en la población infantil mexicana, se muestra de modo extremo en áreas rurales. El déficit se agudiza por la problemática económica y sanitaria actual, lo que se constituye en un problema alimentario de naturaleza nacional. En este trabajo se estudió el nivel de aceptabilidad del maíz de alta calidad proteínica (ACP) con el cálculo de un índice de aceptabilidad, con información de 78 productores, del sur del estado de Puebla, que participan en un programa de la SDR, caracterizados por IDH bajo y alto índice de desnutrición. Se aplicó un cuestionario de 51 preguntas a una muestra por muestreo aleatorio simple, con grado de confiabilidad de 95%. Se encontró que la semilla del maíz ACP se distribuye con sus atributos proteínicos, pero con una deficiente transferencia de tecnología; con índice de aceptabilidad del 60%, que muestra buena aceptación para ser sembrado por los productores. Lo siembran uno, dos o tres años, valorando sus circunstancias para repetirlo en ciclos siguientes, ignorando sus propiedades proteínicas. El consumo, del maíz ACP se incorpora al forraje para animales de traspatio y esporádicamente en la dieta de la familia

Treatment with tocilizumab or corticosteroids for COVID-19 patients with hyperinflammatory state: a multicentre cohort study (SAM-COVID-19)

Objectives: The objective of this study was to estimate the association between tocilizumab or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 (COVID-19) with a hyperinflammatory state according to clinical and laboratory parameters. Methods: A cohort study was performed in 60 Spanish hospitals including 778 patients with COVID-19 and clinical and laboratory data indicative of a hyperinflammatory state. Treatment was mainly with tocilizumab, an intermediate-high dose of corticosteroids (IHDC), a pulse dose of corticosteroids (PDC), combination therapy, or no treatment. Primary outcome was intubation or death; follow-up was 21 days. Propensity score-adjusted estimations using Cox regression (logistic regression if needed) were calculated. Propensity scores were used as confounders, matching variables and for the inverse probability of treatment weights (IPTWs). Results: In all, 88, 117, 78 and 151 patients treated with tocilizumab, IHDC, PDC, and combination therapy, respectively, were compared with 344 untreated patients. The primary endpoint occurred in 10 (11.4%), 27 (23.1%), 12 (15.4%), 40 (25.6%) and 69 (21.1%), respectively. The IPTW-based hazard ratios (odds ratio for combination therapy) for the primary endpoint were 0.32 (95%CI 0.22-0.47; p < 0.001) for tocilizumab, 0.82 (0.71-1.30; p 0.82) for IHDC, 0.61 (0.43-0.86; p 0.006) for PDC, and 1.17 (0.86-1.58; p 0.30) for combination therapy. Other applications of the propensity score provided similar results, but were not significant for PDC. Tocilizumab was also associated with lower hazard of death alone in IPTW analysis (0.07; 0.02-0.17; p < 0.001). Conclusions: Tocilizumab might be useful in COVID-19 patients with a hyperinflammatory state and should be prioritized for randomized trials in this situatio

Spatiotemporal Characteristics of the Largest HIV-1 CRF02_AG Outbreak in Spain: Evidence for Onward Transmissions

Background and Aim: The circulating recombinant form 02_AG (CRF02_AG) is the predominant clade among the human immunodeficiency virus type-1 (HIV-1) non-Bs with a prevalence of 5.97% (95% Confidence Interval-CI: 5.41–6.57%) across Spain. Our aim was to estimate the levels of regional clustering for CRF02_AG and the spatiotemporal characteristics of the largest CRF02_AG subepidemic in Spain.Methods: We studied 396 CRF02_AG sequences obtained from HIV-1 diagnosed patients during 2000–2014 from 10 autonomous communities of Spain. Phylogenetic analysis was performed on the 391 CRF02_AG sequences along with all globally sampled CRF02_AG sequences (N = 3,302) as references. Phylodynamic and phylogeographic analysis was performed to the largest CRF02_AG monophyletic cluster by a Bayesian method in BEAST v1.8.0 and by reconstructing ancestral states using the criterion of parsimony in Mesquite v3.4, respectively.Results: The HIV-1 CRF02_AG prevalence differed across Spanish autonomous communities we sampled from (p &lt; 0.001). Phylogenetic analysis revealed that 52.7% of the CRF02_AG sequences formed 56 monophyletic clusters, with a range of 2–79 sequences. The CRF02_AG regional dispersal differed across Spain (p = 0.003), as suggested by monophyletic clustering. For the largest monophyletic cluster (subepidemic) (N = 79), 49.4% of the clustered sequences originated from Madrid, while most sequences (51.9%) had been obtained from men having sex with men (MSM). Molecular clock analysis suggested that the origin (tMRCA) of the CRF02_AG subepidemic was in 2002 (median estimate; 95% Highest Posterior Density-HPD interval: 1999–2004). Additionally, we found significant clustering within the CRF02_AG subepidemic according to the ethnic origin.Conclusion: CRF02_AG has been introduced as a result of multiple introductions in Spain, following regional dispersal in several cases. We showed that CRF02_AG transmissions were mostly due to regional dispersal in Spain. The hot-spot for the largest CRF02_AG regional subepidemic in Spain was in Madrid associated with MSM transmission risk group. The existence of subepidemics suggest that several spillovers occurred from Madrid to other areas. CRF02_AG sequences from Hispanics were clustered in a separate subclade suggesting no linkage between the local and Hispanic subepidemics

Heterogeneous contributions of change in population distribution of body mass index to change in obesity and underweight NCD Risk Factor Collaboration (NCD-RisC)

From 1985 to 2016, the prevalence of underweight decreased, and that of obesity and severe obesity increased, in most regions, with significant variation in the magnitude of these changes across regions. We investigated how much change in mean body mass index (BMI) explains changes in the prevalence of underweight, obesity, and severe obesity in different regions using data from 2896 population-based studies with 187 million participants. Changes in the prevalence of underweight and total obesity, and to a lesser extent severe obesity, are largely driven by shifts in the distribution of BMI, with smaller contributions from changes in the shape of the distribution. In East and Southeast Asia and sub-Saharan Africa, the underweight tail of the BMI distribution was left behind as the distribution shifted. There is a need for policies that address all forms of malnutrition by making healthy foods accessible and affordable, while restricting unhealthy foods through fiscal and regulatory restrictions

Clinical significance of interleukin-1 genotype in smoking patients as a predictor of peri-implantitis: a case-control study

Background: Interleukin-1 (IL-1) is a proinflammatory cytokine that plays an important role in the pathogenesis of periodontitis, and so it might be useful to detect high-risk cases of peri-implantitis. It has been reported that IL-1 polymorphisms and smoking habit have a synergic effect, increasing the incidence of peri-implantitis. The aim of the present study was to evaluate the relationship between IL-1 gene polymorphisms and peri-implantitis in smoking patients. Material and methods: A case-control study was performed in 27 patients with peri-implantitis and 27 patients with healthy implants. All patients included were smokers. IL-1A-C889T, IL-1B+C3953T and IL-1RN+T2018C were identified by polymerase chain reaction (PCR) amplification in order to establish a relation between these variables and the presence of peri-implantitis. A bivariate analysis was performed and odds-ratio (OR) were calculated. Results: The incidence of peri-implantitis was significantly higher in patients with previous history of periodontitis (p=0.024; OR=10.9). Both groups were similar regarding IL-1A-C889T, IL-1B+C3953T and IL-1RN+T2018C genotypes. No increased risk in heavy smokers with IL-1 polymorphism was found. Conclusions: IL-1 genotypes do not seem to be good predictors of peri-implantitis in the great majority of smoking patients. Furthermore, no synergic effect was found between IL-1 genotypes and heavy smokers. Patients with a previous history of periodontitis were more prone to peri-implantitis

Actualización en implantología bucofacial. Revisión de la literatura del año 2004. 2ª parte

Podeu consultar la primera part de l'article a http://hdl.handle.net/2445/163637Los autores revisan los artículos publicados en las revistas científicas más relevantes en el ámbito de la implantología bucofacial publicados durante el año 2004, destacando las novedades más significativas en cuanto a diseño y superficie de los implantes, carga inmediata, implantes inmediatos, técnicas especiales, implantes unitarios, elevación del suelo del seno maxilar, complicaciones y periimplantitis

Effect of implantoplasty on roughness, fatigue and corrosion behavior of narrow diameter dental implants

Implantoplasty (IP) is used in dental implants with peri-implantitis and aims to remove threads and polish rough surfaces in order to prevent bacterial colonization. As a result of this procedure, implant strength might be compromised. We tested 20 tapered screw-shaped Ti6Al4V dental implants with a simulated bone loss of 50%. Ten implants underwent IP and 10 served as controls. Surface topography (Sa, Sz, Ssk, and Sdr) was analyzed with a confocal optical microscope. Subsequently, a minimum of four series of cyclic loads were applied with a servo-hydraulic mechanical testing machine (5 × 106 cycles at 15 Hz, between a maximal nominal value-starting at 529 N in the IP group and 735 N in the control group-and 10% of that force). We recorded the number of cycles until failure and the type of failure. Implant failure was analyzed by visual inspection and scanning electron microscopy. Open circuit potential and potenctiodynamic tests were carried out with high precision potentiostat using Hank's solution at 37 °C to evaluate the effect of the implantoplasty on the corrosion resistance. Implantoplasty significantly reduced the surface topography values (median) and interquartile range (IQR); Sa from 1.76 (IQR = 0.11) to 0.49 (IQR = 0.16), Sz from 20.98 (IQR = 8.14) to 8.19 (IQR = 4.16), Ssk from 0.01 (IQR = 0.34) to −0.74 (IQR = 0.53) and Sdr from 18.20 (IQR = 2.26) to 2.67 (IQR = 0.87). The fatigue limits of the control and implantoplasty groups were 551 N and 529 N, respectively. The scanning electron micrographs showed fatigue striations indicating fatigue failure. Besides, the fractographic analysis revealed a typical brittle intergranular fracture mechanism. The infinite life range of the dental implants evaluated was largely above the threshold of usual chewing forces. Implantoplasty seems to render a fairly smooth surface and has a limited impact on fatigue resistance. In addition, implantoplasty produces a decrease in the corrosion resistance of the implant. Corrosion current density from 0.019 μA/cm2 for as-received to 0.069 μA/cm2 in the interface smooth-roughened dental implant. These places between the machining and the rough area of the implant are the most susceptible, with the appearance of pitting

A Home and Ambulatory Artificial Nutrition (NADYA) group report, Home Parenteral Nutrition in Spain, 2013.

AIM: To communicate the results of the Spanish Home Parenteral Nutrition (HPN) registry of the NADYA-SENPE group for the year 2013. MATERIAL AND METHODS: Data was recorded online by NADYA group collaborators that were responsible of the HPN follow-up from 1st January to 31st December 2013. RESULTS: A total of 197 patients and 202 episodes of HPN were registered from 35 hospitals that represents a rate of 4,22 patients/million habitants/year 2013. The median age was 53 years (IQR 40-64) for 189 adult patients and 7 months (IQR 6-35,5) for children. The most frequent disease in adults was neoplasm (30,7%) followed by other diseases (20,1%) and mesenteric ischemia (12,7%). Short bowel syndrome and intestinal obstruction (25,9%) were in 35.7% cases the indications for HPN. The most frequent diagnosis for children were the congenital intestinal disorders and other diagnosis, both with a (37,5%) and short bowel syndrome and intestinal obstruction were the indication for treatment, each was present in 50% of the sample. Tunneled catheters (50%) and subcutaneous reservoirs (27,7%) were frequently used. The septic complications related with catheter were commonly frequent with a rate of 0.74 infections/1000 HPN days. HPN duration presented a median of 1,69 days. A total of 86 episodes finalized during the year, death was the principal reason (45%), followed by "resumed oral via" (43,75%) while it happened inversely for children, 66,7% of them resumed oral via and 16,7% deceased. Fifteen per cent were considered for intestinal transplant, children were proportionally candidates, p-value 0.002. CONCLUSIONS: The number of participating centers and registered patients increased progressively respect to preceding years. Since 2003 Neoplasm is still being the principal pathological group. Death is adult's principal reason for finalizing HPN and "resuming oral via" for children. Despite that NADYA registry is consolidate as a essential source of relevant information about the advances in Home Artificial Nutrition in our country, currently is in an improvement process of the available information about patients characteristics with a special emphasis on children even though they still being a minority group.YesObjetivo: comunicar los datos del registro de Nutrición Parenteral Domiciliaria (NPD) del grupo de trabajo NADYA-SENPE del años 2013. Material y métodos: recopilación de los datos del registro “on-line” introducidos por los colaboradores del grupo NADYA responsables del seguimiento de la NPD desde el 1 de enero de 2013 al 31 de diciembre de 2013. Resultados: se registraron 197 pacientes, procedentes de 35 hospitales, lo que representa una tasa de 4,22 pacientes/ millón habitantes/año 2013, con 202 episodios de NPD. La edad media de los 189 pacientes mayores de 14 años fue de 53 años (IIQ 40 – 64), y en los niños de 7 meses (IIQ 6 – 35,5). La patología más frecuente en los adultos fue la neoplasia (30,7%) seguida por otras patologías (20,1%) y la isquemia mesentérica (12,7%). En el 35,4% de los casos el motivo de indicación fue el síndrome de intestino corto, seguido de la obstrucción intestinal (25,9%). En los niños el diagnóstico más frecuente fueron las alteraciones congénitas intestinales y ‘otros diagnósticos’, ambas con un 37,5 %, y la causa de la indicación el síndrome de intestino corto y la obstrucción intestinal, que se repartieron el 50% de la muestra. Los catéteres más utilizados fueron los tunelizados (50%) y los reservorios subcutáneos (27,7%). Las complicaciones más frecuentes fueron las sépticas, relacionadas con el catéter, con una tasa de 0,74 infecciones/1.000 días de NPD. La duración de la NPD presentó una mediana de 1,69 años. Durante el año finalizaron 86 episodios, la principal causa de la finalización en adultos fue el fallecimiento (45%) seguido del ‘paso a la vía oral’ (43,75%) y en los niños a la inversa 66,7% pasan a vía oral y 16,7% fallecen. Se consideraron candidatos para trasplante intestinal el 15% de los pacientes, siendo proporcionalmente los candidatos niños, p-valor 0,002. Conclusiones: se observa un aumento progresivo de los centros participantes y de los pacientes registrados respecto a años anteriores. El principal grupo patológico sigue siendo oncológico, ocupando el primer lugar desde 2003. La principal causa de finalización de la NPD es en los adultos el fallecimiento y en los niños el ‘paso a vía oral’. Aunque el registro NADYA es un registro consolidado y ha sido y es fuente imprescindible de información relevante para el conocimiento de los avances de la Nutrición Artificial Domiciliaria en nuestro país, se encuentra en proceso de mejorar la información que ofrece sobre las características de los pacientes, con especial atención en el grupo de niños, aunque estos siguen siendo un número reducido