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La terminología usada para describir los diferentes hallazgos en la microscopía confocal de reflectancia (MCR), tanto en lesiones melanocíticas, como en no melanocíticas se ha consensuado en inglés. En el presente trabajo, se proponen los términos en español que mejor interpretan estos conceptos ya descritos para la MCR, mediante el consenso de expertos de distintas nacionalidades de habla hispana y utilizando el método DELPHI para el acuerdo final. Se obtuvieron 52 términos en total, de los cuales 28 fueron para lesiones melanocíticas y 24 para lesiones no melanocíticas. El uso de la nomenclatura propuesta permitirá una homogeneización y mejor entendimiento de las estructuras; una descripción más estandarizada en los registros clínicos y una mejor interpretación de estos informes por otros dermatólogos.(AU)
The terminology used to describe reflectance confocal microscopy (RCM) findings in both melanocytic and nonmelanocytic lesions has been standardized in English. We convened a panel of Spanish-speaking RCM experts and used the Delphi method to seek consensus on which Spanish terms best describe RCM findings in this setting. The experts agreed on 52 terms: 28 for melanocytic lesions and 24 for nonmelanocytic lesions. The resulting terminology will facilitate homogenization, leading to a better understanding of structures, more standardized descriptions in clinical registries, and easier interpretation of clinical reports exchanged between dermatologists.(AU)
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Humanos , Masculino , Femenino , Terminología como Asunto , Microscopía Confocal , Hallazgos Morfológicos y Microscópicos , Carcinoma Basocelular/diagnóstico por imagen , Melanoma/microbiología , TraducciónRESUMEN
La terminología usada para describir los diferentes hallazgos en la microscopía confocal de reflectancia (MCR), tanto en lesiones melanocíticas, como en no melanocíticas se ha consensuado en inglés. En el presente trabajo, se proponen los términos en español que mejor interpretan estos conceptos ya descritos para la MCR, mediante el consenso de expertos de distintas nacionalidades de habla hispana y utilizando el método DELPHI para el acuerdo final. Se obtuvieron 52 términos en total, de los cuales 28 fueron para lesiones melanocíticas y 24 para lesiones no melanocíticas. El uso de la nomenclatura propuesta permitirá una homogeneización y mejor entendimiento de las estructuras; una descripción más estandarizada en los registros clínicos y una mejor interpretación de estos informes por otros dermatólogos.(AU)
The terminology used to describe reflectance confocal microscopy (RCM) findings in both melanocytic and nonmelanocytic lesions has been standardized in English. We convened a panel of Spanish-speaking RCM experts and used the Delphi method to seek consensus on which Spanish terms best describe RCM findings in this setting. The experts agreed on 52 terms: 28 for melanocytic lesions and 24 for nonmelanocytic lesions. The resulting terminology will facilitate homogenization, leading to a better understanding of structures, more standardized descriptions in clinical registries, and easier interpretation of clinical reports exchanged between dermatologists.(AU)
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Humanos , Masculino , Femenino , Terminología como Asunto , Microscopía Confocal , Hallazgos Morfológicos y Microscópicos , Carcinoma Basocelular/diagnóstico por imagen , Melanoma/microbiología , TraducciónRESUMEN
The terminology used to describe reflectance confocal microscopy (RCM) findings in both melanocytic and nonmelanocytic lesions has been standardized in English. We convened a panel of Spanish-speaking RCM experts and used the Delphi method to seek consensus on which Spanish terms best describe RCM findings in this setting. The experts agreed on 52 terms: 28 for melanocytic lesions and 24 for nonmelanocytic lesions. The resulting terminology will facilitate homogenization, leading to a better understanding of structures, more standardized descriptions in clinical registries, and easier interpretation of clinical reports exchanged between dermatologists.
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Melanoma , Neoplasias Cutáneas , Humanos , Neoplasias Cutáneas/patología , Melanoma/diagnóstico por imagen , Melanoma/patología , Técnica Delphi , Microscopía Confocal/métodos , Consenso , Dermoscopía/métodosRESUMEN
Antecedentes: el intento de suicidio es el principal factor de riesgo de muerte por suicidio. La Organización Mundial de la Salud sugiere grupos de apoyo como intervención para esta población. Objetivo: Este estudio tuvo como objetivo determinar la eficacia de los grupos de apoyo de pares para sobrevivientes de intento de suicidio (SOSA). Método: Revisión sistemática (PROSPERO ID: CRD42022307581). Resultados: En total se identificaron 946 artículos potenciales, se revisaron 81 textos completos y se incluyó un artículo. El artículo informa sobre un estudio piloto abierto con evaluaciones pre y post intervención, sin grupo de control y con alto riesgo de sesgo. Esta es una intervención prometedora, porque los resultados mostraron una disminución de la ideación suicida (d=0,33), y del intento de suicidio (d=0,31). El pequeño número de investigaciones empíricas limita las generalizaciones. Conclusión: El nivel de certeza de la evidencia es bajo (baja certeza), por lo tanto, el grado de recomendación corresponde a evidencia insuficiente (I), para recomendar esta estrategia para las políticas públicas. En este artículo se analizan las razones de estos resultados y los posibles caminos para avanzar en este campo.
Background: Suicide attempt is the main risk factor for death by suicide. The World Health Organization (WHO) suggests support groups as an intervention for this population. Objective: This study aimed to assess the efficacy of peer-support groups for survivors of suicide attempt (SOSA). Method: Systematic review (PROSPERO ID: CRD42022307581). Results: In total, 946 potential articles were identified, 81 full texts were reviewed, and one article was included. The article reported an open-label pilot study with pre- and post-intervention evaluations, without a control group, and with a high risk of bias. This is a promising intervention because the results showed decreased suicidal ideation (d=0.33) and suicide attempt (d=0.31). The small number of empirical investigations limit generalizations. Conclusion: The level of certainty of evidence is low (low certainty); therefore, the grade of recommendation corresponds to insufficient evidence (I) to recommend this strategy for public policies. The reasons for these results and possible paths to advance the field are discussed in this article.
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A scoping review was conducted to identify the available evidence about frailty among older Hispanics living in the U.S. using the Integral Model of Frailty. A not time-limited search was conducted in five peer-reviewed databases. Identified factors associated with frailty among older Hispanics are presented in four categories: (1) Characteristics and prevalence of frailty, (2) Life course determinants of frailty, (3) Comorbidities associated with frailty, and (4) Adverse outcomes of frailty. A total of 1030 articles were identified, and 37 articles were included in the scoping review. Most studies measured frailty based on the Fried Frailty Phenotype (59.5%, n= 22) and had a longitudinal design (64.9%, n= 24). The overall prevalence of frailty among Hispanics ranged from 4.3% to 37.1% (n= 20 studies). Further research is needed that targets Hispanics from different backgrounds in the U.S., particularly those that are high in number (i.e., Mexicans, Puerto Ricans, and Central Americans).
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Fragilidad , Hispánicos o Latinos , Estados Unidos , Humanos , Anciano , Prevalencia , Comorbilidad , Anciano FrágilRESUMEN
Objetivo: El propósito del estudio fue comprobar la efectividad de la movilidad cervicodorsal con característica socializadora y lúdica en relación con el riesgo de caídas en adultos mayores con anteposición de cabeza y cuello. Material y métodos: El presente estudio fue un ensayo clínico aleatorizado con un diseño experimental, longitudinal, basado en la evaluación del riesgo de caídas mediante el Timed Up and Go en 3 grupos de 44 participantes posterior a 16 semanas, divididos en: grupo movilidad cervicodorsal, grupo movilidad cervicodorsal con característica socializadora y lúdica y grupo control que no realizó intervención. Los 132 participantes cumplieron los criterios de inclusión y exclusión: adultos mayores>60 años, con anteposición de cabeza y cuello, índice de masa corporal con sobrepeso y obesidad tipo 1 y sin enfermedades neurológicas, reumatológicas, sistémicas, inmunodepresivas, infecciosas u osteomusculares. Resultados: Hubo cambios estadísticamente significativos en la disminución del riesgo de caídas en ambos grupos que recibieron tratamiento (p<0,05). El grupo movilidad cervicodorsal disminuyó en promedio 5,43 segundos, y el grupo movilidad cervicodorsal con característica socializadora y lúdica disminuyó en promedio 5,78 segundos. Conclusión: La movilidad cervicodorsal con característica socializadora y lúdica fue efectiva en relación con la disminución del riesgo de caídas en adultos mayores con anteposición de cabeza y cuello, no observándose diferencias estadísticamente significativas entre los 2 grupos experimentales.
Objective: The purpose of the study was to assess the effectiveness of cervicodorsal mobility testing with a socialising and playful features in relation to falls risk in older adults with forward head and neck posture. Material and methods: The present study was a randomised clinical trial with a longitudinal, experimental design, based on assessment of falls risk using the Timed Up and Go Test in three groups of 44 participants after 16 weeks, divided into: cervicodorsal mobility group, cervicodorsal mobility group with socialising and playful features and a control group that did not take part in the intervention. The 132 participants met the inclusion and exclusion criteria: older adults>60 years of age, with forward head and neck posture, overweight body mass index and type 1 obesity and with no neurological, rheumatological, systemic, immunosuppressive, infectious, or musculoskeletal diseases. Results: There were statistically significant changes in decrease in falls risk in both groups receiving treatment (p<.05). The cervicodorsal mobility group decreased in risk by an average of 5.43seconds and the cervicodorsal mobility group with socialising and playful features decreased by an average of 5.78seconds. Conclusion: Cervicodorsal mobility with socialising and playful features was effective in reducing the risk for falls in older adults with forward head and neck posture and forward neck posture, and no statistically significant differences were observed between the two experimental groups.
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Humanos , Anciano , Accidentes por Caídas , Medición de Riesgo , Terapia por Ejercicio , Anciano , Cabeza , Cuello , Proyectos de Investigación , Estudios Longitudinales , Especialidad de Fisioterapia/métodosAsunto(s)
COVID-19 , Melanoma , Estudios de Cohortes , Humanos , Melanoma/diagnóstico , Melanoma/epidemiología , Pandemias , SARS-CoV-2RESUMEN
We search for gravitational-wave signals produced by cosmic strings in the Advanced LIGO and Virgo full O3 dataset. Search results are presented for gravitational waves produced by cosmic string loop features such as cusps, kinks, and, for the first time, kink-kink collisions. A template-based search for short-duration transient signals does not yield a detection. We also use the stochastic gravitational-wave background energy density upper limits derived from the O3 data to constrain the cosmic string tension Gµ as a function of the number of kinks, or the number of cusps, for two cosmic string loop distribution models. Additionally, we develop and test a third model that interpolates between these two models. Our results improve upon the previous LIGO-Virgo constraints on Gµ by 1 to 2 orders of magnitude depending on the model that is tested. In particular, for the one-loop distribution model, we set the most competitive constraints to date: Gµâ²4×10^{-15}. In the case of cosmic strings formed at the end of inflation in the context of grand unified theories, these results challenge simple inflationary models.
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CONTEXT: The rapid emergence of COVID-19 could have direct and indirect impacts on food production systems and livelihoods of farmers. From the farming perspective, disruption of critical input availability, supply chains and labor, influence crop management. Disruptions to food systems can affect (a) planting area; and (b) crop yields. OBJECTIVES: To quantify the impacts of COVID-19 on major cereal crop's production and their cascading impact on national economy and related policies. METHODS: We used the calibrated crop simulation model (DSSAT suite) to project the impact of potential changes in planting area and grain yield of four major cereal crops (i.e., rice, maize, sorghum, and millet) in Senegal and Burkina Faso in terms of yield, total production, crop value and contribution to agricultural gross domestic product (GDP). Appropriate data (i.e., weather, soil, crop, and management practices) for the specific agroecological zones were used as an input in the model. RESULTS AND CONCLUSIONS: The simulated yields for 2020 were then used to estimate crop production at country scale for the matrix of different scenarios of planting area and yield change (-15, -10, -5, 0, +5, +10%). Depending on the scenario, changes in total production of four cereals combined at country levels varied from 1.47 M tons to 2.47 M tons in Senegal and 4.51 M tons to 7.52 M tons in Burkina Faso. The economic value of all four cereals under different scenarios ranged from $771 Million (M) to $1292 M in Senegal and from $1251 M to $2098 M in Burkina Faso. These estimated total crop values under different scenarios were compared with total agricultural GDP of the country (in 2019 terms which was $3995 M in Senegal and $3957 M in Burkina Faso) to assess the economic impact of the pandemic on major cereal grain production. Based on the scenarios, the impact on total agricultural GDP can change -7% to +6% in Senegal and - 8% to +9% in Burkina Faso. SIGNIFICANCE: Results obtained from this modeling exercise will be valuable to policymakers and end-to-end value chain practitioners to prepare and develop appropriate policies to cope or manage the impact of COVID-19 on food systems.
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Previous studies have shown the presence of several subunits of the inhibitory glycine receptor (GlyR) in the reward system, specifically in medium spiny neurons (MSNs) of the nucleus Accumbens (nAc). It was suggested that GlyR α1 subunits regulate nAc excitability and ethanol consumption. However, little is known about the role of the α2 subunit in the adult brain since it is a subunit highly expressed during early brain development. In this study, we used genetically modified mice with a mutation (KR389-390AA) in the intracellular loop of the GlyR α2 subunit which results in a heteromeric α2ß receptor that is insensitive to ethanol. Using this mouse model denoted knock-in α2 (KI α2), our electrophysiological studies showed that neurons in the adult nAc expressed functional KI GlyRs that were rather insensitive to ethanol when compared with WT GlyRs. In behavioral tests, the KI α2 mice did not show any difference in basal motor coordination, locomotor activity, or conditioned place preference compared with WT littermate controls. In terms of ethanol response, KI α2 male mice recovered faster from the administration of ataxic and sedative doses of ethanol. Furthermore, KI α2 mice consumed higher amounts of ethanol in the first days of the drinking in the dark protocol, as compared with WT mice. These results show that the α2 subunit is important for the potentiation of GlyRs in the adult brain and this might result in reduced sedation and increased ethanol consumption.
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Etanol , Receptores de Glicina , Consumo de Bebidas Alcohólicas , Animales , Masculino , Ratones , Núcleo Accumbens/metabolismo , Receptores de Glicina/metabolismo , Transmisión SinápticaRESUMEN
This simulation study was carried out to assess the impact of climate change and adaptation strategies on maize production across 22 locations in Ethiopia using Decision Support System for Agrotechnology Transfer - Cropping System Model (DSSAT-CSM) CERES-Maize. Three maize varieties, i.e., [BH-660 (late maturing), BH-540 (medium maturing) and Melkasa-1 (short maturing)] along with three planting dates [early (25-Apr), normal (25-May) and late (25-Jun)], four N fertilizer rates (64, 96, 128 and 160 kg N/ha) and three water levels [rainfed (no irrigation), two irrigations (each 30 mm at time of flowering and 5 d after flowering with total = 60 mm) and five irrigations (each 30 mm at time of flowering to early grain-filing, which were applied every five days in total = 150 mm)] were evaluated as the adaptation strategy. The mid-century (2040-2069) temperatures and solar radiation were extracted from multiple model means across the Coordinated Regional Climate Downscaling Experiment (CORDEX) models under the highest Representative Concentration Pathway (RCP8.5). Maize productivity was evaluated assuming that maize was grown on shallow sandy loam soils. Yield of an early, medium and late maturing maize were changed by -13 to -8%, -10 to +4% and + 3 to +13%, respectively, relative to the baseline period (1980-2005). The days to maturity decreased by about 16%. Under rainfed condition, N application up to 64, 128 and 160 kg/ha significantly improved yield for early, medium and late maturing varieties, respectively. Relatively high yield and low inter-seasonal yield variability were simulated for BH-660 and Melkasa-1 when planted on 25-Apr and 25-May, respectively, for most locations. Application of two (60 mm) and five (150 mm) irrigation levels improved yield in drier locations. In conclusion, this study provides potential adaptation options under the future climate in maize producing regions of Ethiopia.
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Agricultura , Zea mays , Cambio Climático , Etiopía , Fertilizantes/análisisRESUMEN
Several previous studies showed that hippocampus and cortex are affected in Alzheimer's disease (AD). However, other brain regions have also been found to be affected and could contribute with new critical information to the pathophysiological basis of AD. For example, volumetric studies in humans have shown a significant atrophy of the striatum, particularly in the nucleus Accumbens (nAc). The nAc is a key component of the limbic reward system and it is involved in cognition and emotional behaviors such as pleasure, fear, aggression and motivations, all of which are affected in neurodegenerative diseases such as AD. However, its role in AD has not been extensively studied. Therefore, using an AD mouse model, we investigated if the nAc was affected in 6 months old transgenic 2xTg (APP/PS1) mice. Immunohistochemistry (IHC) analysis in 2xTg mice showed increased intraneuronal Aß accumulation, as well as occasional extracellular amyloid deposits detected through Thioflavin-S staining. Interestingly, the intracellular Aß pathology was associated to an increase in membrane excitability in dissociated medium spiny neurons (MSNs) of the nAc. IHC and western blot analyses showed a decrease in glycine receptors (GlyR) together with a reduction in the pre- and post-synaptic markers SV2 and gephyrin, respectively, which correlated with a decrease in glycinergic miniature synaptic currents in nAc brain slices. Additionally, voltage-clamp recordings in dissociated MSNs showed a decrease in AMPA- and Gly-evoked currents. Overall, these results showed intracellular Aß accumulation together with an increase in excitability and synaptic alterations in this mouse model. These findings provide new information that might help to explain changes in motivation, anhedonia, and learning in the onset of AD pathogenesis.
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Enfermedad de Alzheimer , Neuronas/fisiología , Núcleo Accumbens/fisiología , Transmisión Sináptica/fisiología , Enfermedad de Alzheimer/patología , Animales , Biomarcadores/metabolismo , Modelos Animales de Enfermedad , Ratones Endogámicos C57BL , Ratones Transgénicos , Neuronas/patología , Técnicas de Placa-Clamp , Placa Amiloide/patología , Receptores de Glicina/metabolismo , Transmisión Sináptica/efectos de los fármacos , Ácido alfa-Amino-3-hidroxi-5-metil-4-isoxazol Propiónico/metabolismo , Ácido alfa-Amino-3-hidroxi-5-metil-4-isoxazol Propiónico/farmacología , Ácido gamma-Aminobutírico/metabolismo , Ácido gamma-Aminobutírico/farmacologíaRESUMEN
We present our current best estimate of the plausible observing scenarios for the Advanced LIGO, Advanced Virgo and KAGRA gravitational-wave detectors over the next several years, with the intention of providing information to facilitate planning for multi-messenger astronomy with gravitational waves. We estimate the sensitivity of the network to transient gravitational-wave signals for the third (O3), fourth (O4) and fifth observing (O5) runs, including the planned upgrades of the Advanced LIGO and Advanced Virgo detectors. We study the capability of the network to determine the sky location of the source for gravitational-wave signals from the inspiral of binary systems of compact objects, that is binary neutron star, neutron star-black hole, and binary black hole systems. The ability to localize the sources is given as a sky-area probability, luminosity distance, and comoving volume. The median sky localization area (90% credible region) is expected to be a few hundreds of square degrees for all types of binary systems during O3 with the Advanced LIGO and Virgo (HLV) network. The median sky localization area will improve to a few tens of square degrees during O4 with the Advanced LIGO, Virgo, and KAGRA (HLVK) network. During O3, the median localization volume (90% credible region) is expected to be on the order of 10 5 , 10 6 , 10 7 Mpc 3 for binary neutron star, neutron star-black hole, and binary black hole systems, respectively. The localization volume in O4 is expected to be about a factor two smaller than in O3. We predict a detection count of 1 - 1 + 12 ( 10 - 10 + 52 ) for binary neutron star mergers, of 0 - 0 + 19 ( 1 - 1 + 91 ) for neutron star-black hole mergers, and 17 - 11 + 22 ( 79 - 44 + 89 ) for binary black hole mergers in a one-calendar-year observing run of the HLV network during O3 (HLVK network during O4). We evaluate sensitivity and localization expectations for unmodeled signal searches, including the search for intermediate mass black hole binary mergers.
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Wheat production is expected to be challenged by future climate change. However, it is unclear how wheat grown in diverse agroecologies will respond to climate change and adaptation management strategies. A geospatial simulation study was conducted to understand the impacts of climate change and adaptation management strategies on wheat (Triticum aestivum L.) production in Ethiopia. Simulation results showed that the average long-term baseline (1980-2005) wheat yield ranged from 1593 to 3356 kg/ha. This wheat yield range is within the national average (2100-2700 kg/ha) for this decade. In regions with cooler temperatures (<21 °C), mid-century temperatures and elevated CO2, along with increased N fertilizer slightly improved attainable yield levels above 3000 kg/ha. Whereas, in regions with heat and drought conditions wheat yield declined regardless the increase of N or CO2 levels. Wheat yield increased at a diminishing rate with increase in N fertilizer rate. However, N fertilizer did not increase yields under low rainfall conditions. Two to five irrigation per season contributed to yield improvement for low rainfall locations, while yield did not substantially improve for locations receiving adequate seasonal rainfall. Therefore, based on this study, improved N fertilizer application in combination with increased CO2 could improve wheat yield under future climate in most wheat producing regions (with adequate rainfall) of Ethiopia. Our results provide valuable information regarding impacts of climate change factors and adaptation strategies for producers, researchers, extension professionals and policy makers.
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Cambio Climático , Triticum , Aclimatación , Sequías , EtiopíaRESUMEN
Inhibitory glycine receptors (GlyRs) are widely expressed in spinal cord and brain stem. They are also expressed in the nucleus Accumbens (nAc) where they have been implicated in the release of dopamine from the ventral tegmental area to the nAc in the presence of ethanol. One of the major types of neurons in the nAc are the Dopamine 1 receptor-expressing (D1+) medium spiny neurons (MSNs) that are activated when addictive drugs, like ethanol, are administrated. Thus, D1(+) MSNs are a relevant target for the study of ethanol effects. Here, using electrophysiological recordings, we report that GlyRs in D1(+) MSNs are highly sensitive to ethanol, with potentiation starting at 5 mM (26 ± 5%). Single channel recordings in D1(+) MSNs showed that 10 mM ethanol increased the open probability of the channel (0.22 ± 0.05 versus 0.66 ± 0.16), but did not affect channel conductance (~40 pS). A glycinergic mediated tonic current in D1(+) MSNs was potentiated by 10 and 50 mM ethanol causing a reduction in the excitability of these cells. A 34 ± 7% reduction in action potential firing was observed in these neurons in the presence of 50 mM ethanol. Interestingly, no effects of ethanol were detected in the presence of strychnine or in D1(-) MSNs in the nAc. These results indicate that GlyRs present in D1(+) MSNs are sensitive to low concentrations of ethanol, and that potentiation of this inhibitory current regulates the activation of nAc, acting as a homeostatic signal that would prevent over-activation of the reward system when drugs like ethanol are consumed.
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Etanol/farmacología , Neuronas/efectos de los fármacos , Núcleo Accumbens/efectos de los fármacos , Receptores de Dopamina D1/efectos de los fármacos , Receptores de Glicina/efectos de los fármacos , Animales , Femenino , Masculino , Ratones , Ratones Endogámicos C57BL , Ratones Transgénicos , Neuronas/metabolismo , Receptores de Dopamina D1/metabolismo , Receptores de Dopamina D2/efectos de los fármacos , Receptores de Dopamina D2/metabolismo , Receptores de Glicina/metabolismoRESUMEN
Objetivo: el propósito del estudio fue evaluar la efectividad inmediata de la técnica de liberación de la fascia toracolumbar para aumentar la resistencia muscular del esternocleidomastoideo bilateral, y disminuir el ángulo de anteposición de cabeza y cuello en mujeres jóvenes de la Universidad Autónoma de Chile. Material y métodos: este estudio longitudinal, está basado en la medición inmediata (5minutos) de la resistencia muscular (segundos) a través de la prueba de fatiga mediante electromiografía de superficie en el esternocleidomastoideo bilateral, y análisis del ángulo de anteposición de cabeza y cuello posterior a la aplicación de la técnica de liberación de la fascia toracolumbar (TLFT). Las 35 mujeres evaluadas reunieron los criterios de inclusión de: sexo femenino, edad entre 22 y 27 años, sedentarias, estudiantes de nivel superior de la Universidad Autónoma de Chile, anteposición de cabeza y cuello entre 43,8 y 51 grados, índice de masa corporal normal y sobrepeso, sin enfermedades de columna y firmar consentimiento informado. Resultados: hubo cambios estadísticamente significativos de manera inmediata en la resistencia muscular del esternocleidomastoideo, con un aumento de 27,4segundos promedio (p<0,05) y la disminución del ángulo de anteposición de cabeza y cuello de 2,8 grados promedio (p<0,05), posterior a la aplicación de la TLFT. Conclusión: la TLFT produce un efecto inmediato en el aumento de la resistencia muscular del esternocleidomastoideo bilateral y una disminución del ángulo de anteposición de cabeza y cuello en mujeres jóvenes que presenten anteposición de cabeza y cuello
Objective: the aim of this study was to evaluate the effectiveness of thoracolumbar myofascial release to increase the resistance of the sternocleidomastoid (SCM) muscle bilaterally and to decrease the angle of forward head posture in young women enrolled at the Autónoma University of Chile. Material and methods: this longitudinal study was based on the immediate measurement (5minutes) of muscular resistance (seconds) through the fatigue test by means of surface electromyography in the bilateral sternocleidomastoid and analysis of the angle of forward head posture after the application of thoracolumbar myofascial release (TMFR). The 35 women evaluated met the inclusion criteria of female sex, age between 22 and 27 years, sedentary lifestyle, senior students of the Autónoma University of Chile, forward angle head posture between 43.8 and 51 degrees, body mass index indicating normal weight or overweight, and without spinal abnormalities. All participants provided written informed consent. Results: after the application of TMFR, there were statistically significant and immediate changes in the muscular resistance of the sternocleidomastoid with an average increase of 27.4seconds (P<.05) and an average decrease in the forward head posture angle of 2.8 degrees (P<.05). Conclusion: TMFR produces an immediate effect in increasing the muscular resistance of the bilateral sternocleidomastoid and reducing the forward head posture angle in young women with forward head posture
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Humanos , Femenino , Adulto Joven , Adulto , Fascia/fisiología , Cabeza/anomalías , Modalidades de Posición , Terapia por Ejercicio/métodos , Músculos del Cuello/fisiopatología , Fuerza Muscular/fisiología , Traumatismos del Cuello/rehabilitación , Puntos Disparadores/fisiopatologíaRESUMEN
OBJECTIVE: The aim of this study was to evaluate the effectiveness of thoracolumbar myofascial release to increase the resistance of the sternocleidomastoid (SCM) muscle bilaterally and to decrease the angle of forward head posture in young women enrolled at the Autónoma University of Chile. MATERIAL AND METHODS: This longitudinal study was based on the immediate measurement (5minutes) of muscular resistance (seconds) through the fatigue test by means of surface electromyography in the bilateral sternocleidomastoid and analysis of the angle of forward head posture after the application of thoracolumbar myofascial release (TMFR). The 35 women evaluated met the inclusion criteria of female sex, age between 22 and 27 years, sedentary lifestyle, senior students of the Autónoma University of Chile, forward angle head posture between 43.8 and 51 degrees, body mass index indicating normal weight or overweight, and without spinal abnormalities. All participants provided written informed consent. RESULTS: After the application of TMFR, there were statistically significant and immediate changes in the muscular resistance of the sternocleidomastoid with an average increase of 27.4seconds (P<.05) and an average decrease in the forward head posture angle of 2.8 degrees (P<.05). CONCLUSION: TMFR produces an immediate effect in increasing the muscular resistance of the bilateral sternocleidomastoid and reducing the forward head posture angle in young women with forward head posture.
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Fascia/fisiología , Cabeza , Tono Muscular , Músculos del Cuello/fisiología , Postura , Adulto , Índice de Masa Corporal , Electromiografía/métodos , Femenino , Humanos , Estudios Longitudinales , Fatiga Muscular/fisiología , Factores de Tiempo , Adulto JovenRESUMEN
Pituitary diseases such as acromegaly and Cushing's disease require surgical or medical therapy. In some functioning pituitary tumors, a spontaneous remission of hormonal hypersecretion is observed, mainly associated to apoplexy or pituitary infarction. We report the evolution of two female patients older than 70 years at the time of diagnosis, with multiple comorbidities. In case 1, acromegaly was diagnosed at 74 years of age. Sellar CT scan showed a 10-mm adenoma. During her follow-up, IGF1 levels remained normal. Nine years later, a magnetic resonance (MR) showed a 7-mm adenoma. In case 2, clinical and biochemical diagnosis of Cushing's disease was done being 71 years old. Sellar MR showed a 6-mm adenoma. Three years later, urinary cortisol normalized with no changes in adenoma at MR. Seven years later, she remains without clinical or biochemical signs of hypercortisolism. In both cases, no signs of hemorrhage were observed at MR.
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Acromegalia/diagnóstico por imagen , Adenoma/diagnóstico por imagen , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/diagnóstico por imagen , Neoplasias Hipofisarias/diagnóstico por imagen , Acromegalia/fisiopatología , Adenoma/fisiopatología , Anciano , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/fisiopatología , Apoplejia Hipofisaria , Neoplasias Hipofisarias/fisiopatología , Remisión EspontáneaRESUMEN
Pituitary diseases such as acromegaly and Cushing's disease require surgical or medical therapy. In some functioning pituitary tumors, a spontaneous remission of hormonal hypersecretion is observed, mainly associated to apoplexy or pituitary infarction. We report the evolution of two female patients older than 70 years at the time of diagnosis, with multiple comorbidities. In case 1, acromegaly was diagnosed at 74 years of age. Sellar CT scan showed a 10-mm adenoma. During her follow-up, IGF1 levels remained normal. Nine years later, a magnetic resonance (MR) showed a 7-mm adenoma. In case 2, clinical and biochemical diagnosis of Cushing's disease was done being 71 years old. Sellar MR showed a 6-mm adenoma. Three years later, urinary cortisol normalized with no changes in adenoma at MR. Seven years later, she remains without clinical or biochemical signs of hypercortisolism. In both cases, no signs of hemorrhage were observed at MR.
Asunto(s)
Humanos , Masculino , Femenino , Anciano de 80 o más Años , Neoplasias Hipofisarias/diagnóstico por imagen , Acromegalia/diagnóstico por imagen , Adenoma/diagnóstico por imagen , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/diagnóstico por imagen , Neoplasias Hipofisarias , Remisión Espontánea , Acromegalia/fisiopatología , Apoplejia Hipofisaria , Imagen por Resonancia Magnética , Adenoma/fisiopatología , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/fisiopatologíaRESUMEN
We present possible observing scenarios for the Advanced LIGO, Advanced Virgo and KAGRA gravitational-wave detectors over the next decade, with the intention of providing information to the astronomy community to facilitate planning for multi-messenger astronomy with gravitational waves. We estimate the sensitivity of the network to transient gravitational-wave signals, and study the capability of the network to determine the sky location of the source. We report our findings for gravitational-wave transients, with particular focus on gravitational-wave signals from the inspiral of binary neutron star systems, which are the most promising targets for multi-messenger astronomy. The ability to localize the sources of the detected signals depends on the geographical distribution of the detectors and their relative sensitivity, and [Formula: see text] credible regions can be as large as thousands of square degrees when only two sensitive detectors are operational. Determining the sky position of a significant fraction of detected signals to areas of 5-[Formula: see text] requires at least three detectors of sensitivity within a factor of [Formula: see text] of each other and with a broad frequency bandwidth. When all detectors, including KAGRA and the third LIGO detector in India, reach design sensitivity, a significant fraction of gravitational-wave signals will be localized to a few square degrees by gravitational-wave observations alone.