Producción de hojarasca y retorno de nutrientes vía foliar en un matorral desértico micrófilo en el Noreste de México = Litterfall production and nutrient returns through leaves in a microphyllous desert scrubland, northeastern Mexico

La caída de hojarasca y el contenido de macro (Ca, N, P, Mg y K) y microminerales (Fe, Mn y Zn) de las hojas se compararon en dos sitios durante 12 meses (septiembre 2008-agosto 2009). El sitio 1 se ubicó en la comunidad El Llano de La Soledad, Galeana, Nuevo León (1,863 m) y el sitio 2 en la comunidad San José del Alamito, Satillo, Coahuila (1,895 m). En cada sitio se colocaron, aleatoriamente, 10 canastas (1 m2) para la captura de hojarasca. La caída anual de hojarasca en el sitio 2 fue mayor (407 g·m-2·año-1) que en el sitio 1 (162 g·m-2·año-1). Las hojas representaron el 47.7 y 53.2 % en el sitio 1 y 2, respectivamente, seguido de ramas (24.6 y 20.3 %), estructuras reproductivas (21.3 y 20.2 %) y otros (4.3 y 7.6 %). La deposición de macro y microminerales fue mayor en el sitio 2 que en el sitio 1. Las diferencias espaciales y temporales, en la cantidad de hojarasca y el retorno de minerales, pudieron estar relacionadas con las temperaturas extremas, composición de la vegetación y propiedades químicas del suelo. ABSTRACT Litterfall and macro (Ca, N, P, Mg and K) and microminerals (Fe, Mn and Zn) components of the leaves were compared in two sites for 12 months (September 2008-Agust 2009). Site 1 was located in El Llano de La Soledad, Galeana, Nuevo León, Mexico (1863 m) and site 2 in San José del Alamito, Saltillo, Coahuila, Mexico (1895 m). A total of 10 litter traps (1 m2) were randomly located at each site to collect litterfall. The annual litterfall at site 2 was higher (407 g·m-2·year-1) than at site 1 (162 g·m-2·year-1). Leaves (47.7 and 53.2 %: site 1 and site 2, respectively) constituted the highest component, followed by branches (24.6 and 20.3 %), reproductive structures (21.3 and 20.2 %) and others (4.3 and 7.6 %). The deposition of macro and microminerals was higher at site 2 than at site 1. The spatio-temporal differences in litterfall and mineral return might have been related to the extreme temperatures, plant species composition and chemical soil properties

How efficacious is the combination of substitute bone graft with autogenous bone graft in comparison with substitute bone graft alone in the horizontal bone gain? A systematic review and meta-analysis

A systematic review (SR) was conducted to answer the following focused question based on PICO strategy: In patients who were submitted to horizontal guided bone regeneration, ?how efficacious is the combination of substitute bone graft with autogenous bo

Proceedings of the 3rd Biennial Conference of the Society for Implementation Research Collaboration (SIRC) 2015: advancing efficient methodologies through community partnerships and team science

It is well documented that the majority of adults, children and families in need of evidence-based behavioral health interventionsi do not receive them [1, 2] and that few robust empirically supported methods for implementing evidence-based practices (EBPs) exist. The Society for Implementation Research Collaboration (SIRC) represents a burgeoning effort to advance the innovation and rigor of implementation research and is uniquely focused on bringing together researchers and stakeholders committed to evaluating the implementation of complex evidence-based behavioral health interventions. Through its diverse activities and membership, SIRC aims to foster the promise of implementation research to better serve the behavioral health needs of the population by identifying rigorous, relevant, and efficient strategies that successfully transfer scientific evidence to clinical knowledge for use in real world settings [3]. SIRC began as a National Institute of Mental Health (NIMH)-funded conference series in 2010 (previously titled the “Seattle Implementation Research Conference”; $150,000 USD for 3 conferences in 2011, 2013, and 2015) with the recognition that there were multiple researchers and stakeholdersi working in parallel on innovative implementation science projects in behavioral health, but that formal channels for communicating and collaborating with one another were relatively unavailable. There was a significant need for a forum within which implementation researchers and stakeholders could learn from one another, refine approaches to science and practice, and develop an implementation research agenda using common measures, methods, and research principles to improve both the frequency and quality with which behavioral health treatment implementation is evaluated. SIRC’s membership growth is a testament to this identified need with more than 1000 members from 2011 to the present.ii SIRC’s primary objectives are to: (1) foster communication and collaboration across diverse groups, including implementation researchers, intermediariesi, as well as community stakeholders (SIRC uses the term “EBP champions” for these groups) – and to do so across multiple career levels (e.g., students, early career faculty, established investigators); and (2) enhance and disseminate rigorous measures and methodologies for implementing EBPs and evaluating EBP implementation efforts. These objectives are well aligned with Glasgow and colleagues’ [4] five core tenets deemed critical for advancing implementation science: collaboration, efficiency and speed, rigor and relevance, improved capacity, and cumulative knowledge. SIRC advances these objectives and tenets through in-person conferences, which bring together multidisciplinary implementation researchers and those implementing evidence-based behavioral health interventions in the community to share their work and create professional connections and collaborations

Manifestaciones bucales en pacientes con insuficiencia renal crónica en hemodiálisis

Objetivos: Determinar las manifestaciones bucales en pacientes con insufi ciencia renal crónica en hemodiálisis del Hospital Alberto Sabogal Sologuren (Bellavista, Callao, Perú) en el periodo de julio-agosto 2013. Materiales y Métodos: Se examinaron a 119 pacientes de ambos sexos. Se les realizó una anamnesis y luego con la ayuda de una linterna, espejos bucales y baja lenguas se les examinó la cavidad bucal de manera minuciosa. Resultados: Los pacientes examinados presentaron lengua saburral 88,2%, agrandamiento gingival 63%, sangrado gingival55,5%, caries dental 85,7%, cálculo dental 80,7%, perdida de inserción dental 72,3%, xerostomía 84%, halitosis 66,4% y disgeusia 55,5%. Se estudió la relación de las manifestaciones bucales según el tiempo de hemodiálisis, encontrándose que existió una asociación estadísticamente signifi cativa en la mayoría de las lesiones (prueba de Chi Cuadrado; p<0,05). Conclusión: Los pacientes con insufi ciencia renal crónica en tratamiento de hemodiálisis, presentaron múltiples manifestaciones bucales propias de la enfermedad y también como consecuencia deltratamiento aplicado, donde se ven afectados los tejidos blandos, tejidos duros y glándulas salivales

Preclinical Evidence for the Use of Oral Mesenchymal Stem Cell-Derived Extracellular Vesicles in Bone Regenerative Therapy: A Systematic Review

The development of extracellular vesicles (EVs) therapies has revolutionized personalized medicine, opening up new possibilities for treatment. EVs have emerged as a promising therapeutic tool within this field due to their crucial role in intercellular communication across various cell types and organisms. This systematic review aims to evaluate the therapeutic potential of oral mesenchymal stem cell (MSC)-derived EVs for bone regeneration, specifically focusing on findings from preclinical models. Sixteen articles meeting the inclusion criteria were selected following document analysis. The biological effects of oral MSC-derived EVs predominantly involve the upregulation of proteins associated with angiogenesis, and inflammation resolution, alongside the downregulation of proinflammatory cytokines. Moreover, these therapeutic agents have been found to contain a significant quantity of different molecules (proteins, lipids, DNA, microRNAs, etc) further contributing to their modulatory potential. The findings from this systematic review underscore that oral MSC-derived EVs, irrespective of their specific population, have the ability to enhance the osteogenic repair response in maxillary bone or periodontal defects. In summary, this systematic review highlights the promising potential of oral MSC-derived EVs for bone regeneration based on evidence from preclinical models. The comprehensive assessment of their biological effects and the presence of microRNAs underscores their therapeutic significance. These findings support the utilization of oral MSC-derived EVs in enhancing the osteogenic repair response in various maxillary bone or periodontal defects, providing insights into the mechanisms involved and potential therapeutic applications in the field of personalized medicine.Consejería de Transformación Económica, Industria, Conocimiento y UniversidadesRevisión por pare

Dispositivos de higiene interproximal em associação com substâncias ativas promvem maiores efeitos antiplaca e antigengivite? revisão sistemática com meta-análise

Dispositivos de higiene interproximal em associação com substâncias ativas promvem maiores efeitos antiplaca e antigengivite? revisão sistemática com meta-anális

Influence of graft thickness on tunnel technique procedures for root coverage: a pilot split-mouth randomized controlled trial

Objective: To compare the clinical outcomes of the tunnel technique (TUN) combined with either thin connective tissue graft (CTG) (TUN + thin CTG) (1 mm) or thick CTG (TUN + thick CTG) (2 mm) for the treatment of localized gingival recession (GR). Material and methods: Twelve patients, with 24 maxillary localized type RT1 GR were randomly assigned into two groups. Clinical, esthetic, and patient‐reported outcomes were evaluated at baseline and at 6-month follow-up. Results: The TUN + thin CTG group showed a higher mean GR reduction (1.53 ± 0.66) (primary outcome variable) than the TUN + thick CTG group (1.44 ± 0.89), but no statistically significant difference was detected at the 6-month follow-up (p = 0.77). No statistically significant differences were found between TUN + thin CTG and TUN + thick CTG concerning complete root coverage (CRC) (58.3% versus 41.7%, respectively), gingival ticknness (GT) or Root-coverage Esthetic Score (RES) at 6 months. Regarding patient‐reported outcomes, both groups reported having experienced similar pain at 7 days (p > 0.05). No statistically significant differences were found between the groups in the analysis of the aesthetic score. Conclusion: Both treatments showed a similar reduction in GR. In addition, similar CRC, GT, RES, pain and self-reported esthetics were achieved in both groups. Clinical relevance: Application of thin CTG provided a similar result than thick CTG for the treatment of RT1 localized GR.Revisión por pare

Effect of collagen sponge and flowable resin composite on pain management after free gingival graft harvesting: A randomized controlled clinical trial

The aim of this study was to compare the effect of the application of a flowable resin composite coating, over a collagen sponge stabilized with suture, on postoperative pain after free gingival graft harvesting. Thirty-two free gingival grafts were harvested from the palate in 32 patients, who were subsequently randomized to have only a collagen sponge stabilized with sutures applied to the palatal wound (control), or to have the collagen sponge coated with a flowable resin composite (test). Patients were observed for 14 days, and the pain level was evaluated by using a numerical rating scale. The consumption of analgesics during the postoperative period and the characteristic of the graft were also analyzed. The patients in the test group reported having experienced significantly less pain statistically than the patients in the control group throughout the study. The consumption of analgesics was lower in the test group. The dimensions of harvested grafts in the control and test groups showed no significant differences in height, width, and thickness. In conclusion, the addition of flowable resin composite coating to the hemostatic collagen sponge on the palatal wound following free gingival graft harvesting helped to minimize postoperative pain.Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorRevisión por pare

Adherencia al tratamiento de pacientes hipertensos atendidos en Assbasalud ESE, Manizales (Colombia) 2011

Antecedentes. Por ser la enfermedad hipertensiva de carácter asintomático, el problema de la adherencia al tratamiento de pacientes hipertensos puede ser grave. Objetivo. Estudiar la adherencia al tratamiento de los pacientes hipertensos atendidos en la ciudad de Manizales (Colombia) por el programa ASSBASALUD E.S.E en el año 2011. Materiales y métodos. Estudio de corte transversal en el cual se empleó una población de 200 personas hipertensas (73,5% femenino, edad media 63,76 años) atendidas en ASSBASALUD ESE, Manizales, en el segundo semestre de 2011. Se empleó el cuestionario Martín-Bayarre-Grau (MBG) y el cuestionario de Morinsky-Green para evaluar la red de apoyo social y se empleó el cuestionario Medical Outcomes Study (MOS). Resultados. Adherentes totales 45% según Morinsky-Green, adherentes totales 51% según MBG, respecto al cuestionario MOS se tiene, 12,29 personas en promedio en su red de apoyo social, apoyo emocional de 74,83%, ayuda material 80,45%, relaciones sociales de ocio y distracción de 78,61%, apoyo afectivo de 83,28%, el fármaco más empleado fue enalapril 17,9%, seguido de verapamilo 10,1%. La adherencia según el cuestionario MBG mostró dependencia significativa entre variables como: educación (p=0,000), conocimientos de la patología (p=0,032), y con los resultados del cuestionario de apoyo social, MOS (p=0,000). La adherencia según Morinsky- Green mostró muy pocas relaciones significativas. Conclusión. La población en estudio presenta bajos niveles de adherencia asociada a baja educación, bajos conocimientos de la patología, bajo apoyo social, se hace necesario una intervención efectiva de ASSBASALUD ESE, a través de su personal de salud. El cuestionario MBG mostró mayor consistencia en la descripción de la adherencia que el cuestionario de Morinsky-Green