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PRCIS: Increased oxygen saturation was significantly associated with the severity of VF damage in glaucoma patients. PURPOSE: To investigate the association between retinal oxygen saturation (StO2) % and the severity of visual field (VF) loss in glaucoma. METHODS: A total of 198 eyes from 131 glaucoma patients were included in this cross-sectional study. Participants underwent imaging using ocular oximetry (Zilia; Quebec City, Canada) and 24-2 SITA standard VF (Carl Zeiss-Meditec, San Leandro). StO2 (%), was measured at 2 locations of the peripapillary optic nerve head (ONH) (superotemporal, and inferotemporal). Measurements were reported as the mean of at least 5 measurements in each location. Associations between the severity of VF loss, reported as mean deviation (MD), and StO2 (%) was calculated. RESULTS: 198 eyes of 131 patients (mean (95% CI) age, 71.1 (68.9,73.3) years, 68 females [51.9%], 63 males (48.1%)) were analyzed. In univariable analysis, higher StO2 -0.06 (-0.12, 0.00) was associated with severity in all hemifields (P=0.047). Multivariate regression analysis showed that each 1% increase in StO2 was associated with -0.06 (-0.12,-0.00) dB loss in MD in all hemifields (P=0.043). In multivariate regression analysis in the superior hemifields, higher StO2 -0.07 (-0.16, 0.01) tended to be associated with superior hemifield severity (P=0.09). CONCLUSIONS: Retinal oximetry enabled the continuous quantitative measurement of retinal StO2. Increased StO2 was significantly associated with the severity of VF damage in glaucoma patients.
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Extant birds stand out among vertebrates in the diversity of parental care types they present, spanning absence of care to uniparental care by either sex, biparental or even cooperative care. Despite years of research, key questions remain regarding parental care evolution in birds. Firstly, the parental care type in the most recent ancestor of extant birds is a matter of controversy, with proposed ancestral states including no care, uniparental male or female care, and biparental care. Another unsolved question is the direction, order, and frequency of transitions between parental care types. We address these key questions using a database of 5,438 bird species (~50% of extant diversity) and modern phylogenetic comparative methods controlling simultaneously for model and phylogenetic uncertainty as well as potential confounding effects of state-dependent diversification. Our results indicate that the most likely ancestral state for extant birds is male-only care, with a posterior probability of 0.8. Transition rates across parental care types were generally low and heterogenous; loss of parental care virtually never occurs and transitions away from female only or cooperative care most often lead to biparental care. Given the low transition rates, future research should analyze the factors favoring the maintenance of care types.
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OBJECTIVE: Biochemical suspicion of familial hypocalciuric hypercalcemia (FHH) might provide with a negative (FHH-negative) or positive (FHH-positive) genetic result. Understanding the differences between both groups may refine the identification of those with a positive genetic evaluation, aid management decisions and prospective surveillance. We aimed to compare FHH-positive and FHH-negative patients, and to identify predictive variables for FHH-positive cases. DESIGN: Retrospective, national multi-centre study of patients with suspected FHH and genetic testing of the CASR, AP2S1 and GNA11 genes. METHODS: Clinical, biochemical, radiological and treatment data were collected. We established a prediction model for the identification of FHH-positive cases by logistic regression analysis and area under the ROC curve (AUROC) was estimated. RESULTS: We included 66 index cases, of which 30 (45.5%) had a pathogenic variant. FHH-positive cases were younger (p = 0.029), reported more frequently a positive family history (p < 0.001), presented higher magnesium (p < 0.001) and lower parathormone levels (p < 0.001) and were less often treated for hypercalcemia (p = 0.017) in comparison to FHH-negative cases. Magnesium levels showed the highest AUROC (0.825, 95%CI: 0.709-0.941). The multivariate analysis revealed that family history and magnesium levels were independent predictors of a positive genetic result. The predictive model showed an AUROC of 0.909 (95%CI: 0.826-0.991). CONCLUSIONS: The combination of magnesium and a positive family history offered a good diagnostic accuracy to predict a positive genetic result. Therefore, the inclusion of magnesium measurement in the routine evaluation of patients with suspected FHH might provide insight into the identification of a positive genetic result of any of the CaSR-related genes.
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Hipercalcemia , Hipercalcemia/congênito , Hiperparatireoidismo Primário , Humanos , Hipercalcemia/diagnóstico , Hipercalcemia/genética , Estudos Retrospectivos , Magnésio , Estudos Prospectivos , Hiperparatireoidismo Primário/diagnósticoRESUMO
BACKGROUND: Home Enteral Nutrition (HEN) is used to prevent or correct malnutrition in outpatients. Due to the complexity of this process, the indication, follow-up, and results of an educational program of HEN patients was evaluated. METHODS: A prospective, observational, real-life, multicenter study was performed in 21 Spanish Hospital. Patients receiving HEN by nasogastric tube or ostomy were included. The following variables were collected: age, gender, HEN indication, type of formula, nutritional requirements, laboratory variables, complications, and quality standards of the educational program. To calculate the energy and protein requirements, the FAO/WHO/UNU formula was used considering the adjusted weight of the patients. All data were analyzed using SPSS.24. RESULTS: 414 patients were included. Most conditions diagnosed were neurodegenerative diseases (64.8%). 100 (25.3%) were diabetic. The mean weight was 59.3 ± 10.4 kg and BMI 22.6 ± 3.2. Moderate protein-calorie malnutrition was predominant at baseline (46.4%). Improvement in nutritional status at six months was recorded in more than 75% of patients (p < 0.05). Tolerance problems, diarrhea and abdominal distension fell between the 3- and 6-month visits (p < 0.05). Patients who received intermittent EN had fewer tolerance-related effects (OR 0.042; 95% CI 0.006-0.279) and less diarrhoea (OR 0.042; 95% CI 0.006-0.279). At the baseline and 6-month visits, compliance with the educational measures proposed by the prescriber was ≥ 99%. CONCLUSION: The nutritional assessment to prescribe individualized HEN to each patient, together with educational measures and training in the proper use of this treatment for both patients and trainers, improves nutritional status and reduces the onset of adverse events.
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Serviços de Assistência Domiciliar , Desnutrição , Humanos , Nutrição Enteral/efeitos adversos , Nutrição Enteral/métodos , Estudos Prospectivos , Estado Nutricional , Desnutrição/prevenção & controle , Desnutrição/etiologia , Diarreia/etiologiaRESUMO
A way to obtain graphene-based materials on a large-scale level is by means of chemical methods for the oxidation of graphite to obtain graphene oxide (GO), in combination with thermal, laser, chemical and electrochemical reduction methods to produce reduced graphene oxide (rGO). Among these methods, thermal and laser-based reduction processes are attractive, due to their fast and low-cost characteristics. In this study, first a modified Hummer's method was applied to obtain graphite oxide (GrO)/graphene oxide. Subsequently, an electrical furnace, a fusion instrument, a tubular reactor, a heating plate, and a microwave oven were used for the thermal reduction, and UV and CO2 lasers were used for the photothermal and/or photochemical reduction. The chemical and structural characterizations of the fabricated rGO samples were performed by Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), scanning electron microscope (SEM) and Raman spectroscopy measurements. The analysis and comparison of the results revealed that the strongest feature of the thermal reduction methods is the production of high specific surface area, fundamental for volumetric energy applications such as hydrogen storage, whereas in the case of the laser reduction methods, a highly localized reduction is achieved, ideal for microsupercapacitors in flexible electronics.
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OBJECTIVE: To provide practical recommendations for the management of mineral and bone metabolism alterations in pregnancy and lactation. PARTICIPANTS: Members of the Working Group on Osteoporosis and Mineral Metabolism of the Spanish Society of Endocrinology and Nutrition. METHODS: Recommendations were formulated according to the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system to describe both the strength of recommendations and the quality of evidence. A systematic search was carried out in Medline of the available evidence for each pathology. Papers in English with publication date until 29 February 2020 were included. A methodologist resolved the differences that arose during the process of reviewing the literature and formulating recommendations. The recommendations were discussed and approved by all members of the Working Group. CONCLUSIONS: The document establishes practical recommendations based on evidence about the management of mineral and bone metabolism disorders in pregnancy and lactation.
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Doenças Ósseas Metabólicas , Osteoporose , Feminino , Humanos , Lactação , Minerais , Osteoporose/terapia , GravidezRESUMO
Objective: To provide practical recommendations for the management of mineral and bone metabolism alterations in pregnancy and lactation. Participants: Members of the Working Group on Osteoporosis and Mineral Metabolism of the Spanish Society of Endocrinology and Nutrition. Methods: Recommendations were formulated according to the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system to describe both the strength of recommendations and the quality of evidence. A systematic search was carried out in Medline of the available evidence for each pathology. Papers in English with publication date until 29 February 2020 were included. A methodology resolved the differences that arose during the process of reviewing the literature and formulating recommendations. The recommendations were discussed and approved by all members of the Working Group. Conclusions: The document establishes practical recommendations based on evidence about the management of mineral and bone metabolism disorders in pregnancy and lactation.
Objetivo: Proporcionar unas recomendaciones prácticas para el manejo de las alteraciones del metabolismo mineral y óseo en la gestación y la lactancia. Participantes: Miembros del Grupo de Metabolismo Mineral de la Sociedad Española de Endocrinología y Nutrición. Métodos:Las recomendaciones se formularon de acuerdo con el sistema Grading of Recommendations Assessment, Development, and Evaluation (GRADE) para establecer tanto la fuerza de las recomendaciones como el grado de evidencia. Se realizó una búsqueda sistemática en Medline de la evidencia disponible para cada patología. Se revisaron artículos escritos en inglés con fecha de inclusión hasta 29 de febrero del 2020. Un metodólogo resolvió las diferencias que surgieron durante el proceso de revisión de bibliografía y formulación de recomendaciones. Tras la formulación de las recomendaciones éstas se discutieron en una reunión conjunta del Grupo de Trabajo. Conclusiones: El documento establece unas recomendaciones prácticas basadas en la evidencia acerca del manejo de las alteraciones del metabolismo mineral y óseo en la gestación y la lactancia.
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Humanos , Feminino , Osteoporose/terapia , Doenças Ósseas Metabólicas , Lactação , Gravidez , MineraisRESUMO
PURPOSE: To compare the differences in retinal vessel density (VD) between topical administration of latanoprostene bunod (LBN) ophthalmic solution 0.024% and timolol maleate 0.5% in patients with open-angle glaucoma (OAG) or ocular hypertension (OHT) and normal subjects. DESIGN: Randomized, single center, crossover clinical trial. METHODS: Eligible subjects were examined during 6 study visits over 12 weeks. All subjects were randomized in a 1:1 ratio to LBN dosed once daily or timolol dosed twice daily in both eyes (OU) for a duration of 4 weeks each, separated by a 2-week washout period. A comprehensive eye examination OU was performed at each visit. Testing was performed with optical coherence tomography and optical coherence tomography angiography (optic nerve and macula), as well as visual field examination, on the study eye at baseline and before and after each treatment. RESULTS: One eye from each of 50 patients was enrolled (10 healthy patients, 26 patients with OHT, and 14 patients with OAG). After administration of LBN there was significantly increased macular VD (0.76% [0.20%-1.33%], P = 0.009) and a trend in increasing peripapillary VD in patients with OAG and patients with OHT. In contrast, after administration of timolol, there were no differences in macular VD, and a decrease in peripapillary VD only was observed in the nasal inferior sector (-0.56% [-1.08% to -0.03%], P = .04) in patients with OAG and patients with OHT. No change in peripapillary or macular VD was observed in the normal subjects (P > .05 for all). CONCLUSIONS: Topical administration of LBN enhanced macular VD in patients with OAG or patients with OHT. In contrast, timolol administration did not have any effect on VD.
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Glaucoma de Ângulo Aberto , Macula Lutea , Hipertensão Ocular , Humanos , Pressão Intraocular , Hipertensão Ocular/tratamento farmacológico , Prostaglandinas F Sintéticas , Vasos Retinianos , Timolol/uso terapêutico , Tomografia de Coerência ÓpticaRESUMO
A new integrated lens-antenna is designed and implemented for a nanocontact based terahertz (THz) photomixer. The new design replaces the standard conventional bulky silicon lens, which normally no THz photomixer can avoid. The Fresnel Zone Plate is used to design the new lens-antenna and is simulated by the MIT open-source tool called Meep. The final design showed, with only two simple fabrication technology processing steps (standard optical lithography) that the lens-antenna can be monolithically integrated with the THz nanophotomixer. With its compact design, the THz measurements showed a comparable behavior to the conventional bulky silicon lens, therefore it would be ready for photonic integrated circuits based THz systems.
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We investigated whether the difference of antigen tube 2 (TB2) minus antigen tube 1 (TB1) (TB2-TB1) of the QuantiFERON-TB gold plus test, which has been postulated as a surrogate for the CD8+ T-cell response, could be useful in identifying recent tuberculosis (TB) exposure. We looked at the interferon gamma (IFN-γ) responses and differences in TB2 and TB1 tubes for 686 adults with QFT-plus positive test results. These results were compared among groups with high (368 TB contacts), low (229 patients with immune-mediated inflammatory diseases [IMID]), and indeterminate (89 asylum seekers or people from abroad [ASPFA]) risks of recent TB exposure. A TB2-TB1 value >0.6 IU·ml-1 was deemed to indicate a true difference between tubes. In the whole cohort, 13.6%, 10.9%, and 11.2% of cases had a TB2>TB1 result in the contact, IMID, and ASPFA groups, respectively (P = 0.591). The adjusted odds ratios (aORs) for an association between a TB2-TB1 result of >0.6 IU·ml-1 and risk of recent exposure versus contacts were 0.71 (95% confidence interval [CI], 0.31 to 1.61) for the IMID group and 0.86 (95% CI, 0.49 to 1.52) for the ASPFA group. In TB contact subgroups, 11.4%, 15.4%, and 17.7% with close, frequent, and sporadic contact had a TB2>TB1 result (P = 0.362). The aORs versus the close subgroup were 1.29 (95% CI, 0.63 to 2.62) for the frequent subgroup and 1.55 (95% CI, 0.67 to 3.60) for the sporadic subgroup. A TB2-TB1 difference of >0.6 IU·ml-1 was not associated with increased risk of recent TB exposure, which puts into question the clinical potential as a proxy marker for recently acquired TB infection. IMPORTANCE Contact tuberculosis tracing is essential to identify recently infected people, who therefore merit preventive treatment. However, there are no diagnostic tests that can determine whether the infection is a result of a recent exposure or not. It has been suggested that by using the QuantiFERON-TB gold plus, an interferon gamma (IFN-γ) release assay, a difference in IFN-γ production between the two antigen tubes (TB2 minus TB1) of >0.6 IU·ml-1 could serve as a proxy marker for recent infection. In this large multinational study, infected individuals could not be classified according to the risk of recent exposure based on differences in IFN-γ in TB1 and TB2 tubes that were higher than 0.6 IU·ml-1. QuantiFERON-TB gold plus is not able to distinguish between recent and remotely acquired tuberculosis infection, and it should not be used for that purpose in contact tuberculosis tracing.
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Busca de Comunicante/métodos , Testes de Liberação de Interferon-gama/métodos , Interferon gama/imunologia , Tuberculose Latente/diagnóstico , Mycobacterium tuberculosis/imunologia , Adulto , Idoso , Antígenos de Bactérias/imunologia , Linfócitos T CD8-Positivos/imunologia , Exposição Ambiental/análise , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Risco , Sensibilidade e Especificidade , Tuberculose/diagnósticoRESUMO
Very often, the root of problems found to produce food sustainably, as well as the origin of many environmental issues, derive from making decisions with unreliable or inexistent data. Data-driven agriculture has emerged as a way to palliate the lack of meaningful information when taking critical steps in the field. However, many decisive parameters still require manual measurements and proximity to the target, which results in the typical undersampling that impedes statistical significance and the application of AI techniques that rely on massive data. To invert this trend, and simultaneously combine crop proximity with massive sampling, a sensing architecture for automating crop scouting from ground vehicles is proposed. At present, there are no clear guidelines of how monitoring vehicles must be configured for optimally tracking crop parameters at high resolution. This paper structures the architecture for such vehicles in four subsystems, examines the most common components for each subsystem, and delves into their interactions for an efficient delivery of high-density field data from initial acquisition to final recommendation. Its main advantages rest on the real time generation of crop maps that blend the global positioning of canopy location, some of their agronomical traits, and the precise monitoring of the ambient conditions surrounding such canopies. As a use case, the envisioned architecture was embodied in an autonomous robot to automatically sort two harvesting zones of a commercial vineyard to produce two wines of dissimilar characteristics. The information contained in the maps delivered by the robot may help growers systematically apply differential harvesting, evidencing the suitability of the proposed architecture for massive monitoring and subsequent data-driven actuation. While many crop parameters still cannot be measured non-invasively, the availability of novel sensors is continually growing; to benefit from them, an efficient and trustable sensing architecture becomes indispensable.
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La medición de la densidad mineral ósea mediante la absorciometría radiológica de doble energía es la técnica de elección para la valoración ósea y un predictor importante del riesgo de fractura. Sin embargo, la mayoría de las fracturas por fragilidad ocurren en personas sin osteoporosis densitométrica, especialmente en enfermedades endocrinológicas. Las herramientas para la estimación del riesgo de fracturas como FRAX han mejorado la sensibilidad diagnóstica aunque no consideran otras características óseas adicionales. La investigación de la microarquitectura ósea supone una mejoría en el abordaje de estos pacientes. En este documento elaborado por miembros del grupo de trabajo de Metabolismo Mineral y Óseo de la Sociedad Española de Endocrinología y Nutrición se revisan los nuevos avances en absorciometría radiológica de doble energía y otras técnicas más complejas para el estudio de la microarquitectura ósea así como los datos disponibles en diabetes tipo 2 y patología paratiroidea
Bone mineral density using dual-energy X-ray absorptiometry is the gold standard for the assessment of bone and an important predictor of fracture risk. However, most fragility fractures occur in people without densitometric osteoporosis, especially in endocrinological diseases. Fracture risk estimation tools such as FRAX have improved diagnostic sensitivity but do not include additional skeletal features. Bone microarchitecture research represents an improvement in the treatment of these patients. In this document members of the Mineral and Bone Metabolism Working Group of the Spanish Society of Endocrinology and Nutrition review new advances in dual-energy X-ray absorptiometry and other complex techniques for the study of bone microarchitecture as well as the available data on type 2 diabetes and parathyroid pathology
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Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Osteogênese Imperfeita/diagnóstico , Avaliação da Tecnologia Biomédica/métodos , Indicadores Básicos de Saúde , Densidade Óssea , Absorciometria de Fóton , Diabetes Mellitus Tipo 2/diagnóstico , Hiperparatireoidismo Primário/diagnóstico , Sociedades Médicas/normas , Fraturas da Coluna Vertebral/diagnóstico , Fraturas da Coluna Vertebral/prevenção & controle , Fatores de RiscoRESUMO
PURPOSE: To examine racial/ethnic differences in dietary intake of women in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC). DESIGN: Cross-sectional study. SETTING: Data from the US National Health and Nutrition Examination Survey. PARTICIPANTS: Women 19 to 50 years of age living in WIC-participating households. MEASURES: Nutrient/food group intake from one 24-hour dietary recall. ANALYSIS: Multivariable linear regression was used to evaluate the relationship between race/ethnicity and nutrient/food group intake. RESULTS: Compared to non-Hispanic white women, Hispanic women had lower dietary energy density (1.7 ± 0.1 vs 2.2 ± 0.1 kcal/g, P < .001), and better nutrient intake, including more folate (429 ± 20 vs 364 ± 29 µg, P = .024), fiber (20.1 ± 0.9 vs 13.6 ± 0.9 g, P ≤ .001), and potassium (2575 ± 78 vs 2251 ± 66 mg, P = .012). This may be related to greater consumption of total vegetables (1.67 ± 0.16 vs 1.17 ± 0.17 cup equivalents [c-eq], P = .029), including more red and orange vegetables (0.64 ± 0.11 vs 0.32 vs 0.09 c-eq, P = .013) and more legumes (0.17 ± 0.04 vs 0.07 ± 0.02 c-eq, P = .006). Both Hispanic and non-Hispanic black women consumed more sodium (Hispanic: P = .015; non-Hispanic black: P = .008), but less added sugars (Hispanic: P ≤ .001; non-Hispanic black: P = .015), than non-Hispanic white women. CONCLUSION: These findings highlight differences in dietary intake by race/ethnicity and can inform nutrition messages of WIC nutrition educators and dietitians.
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Dieta , Etnicidade , Criança , Estudos Transversais , Feminino , Humanos , Lactente , Nutrientes , Inquéritos Nutricionais , VerdurasRESUMO
Bone mineral density using dual-energy X-ray absorptiometry is the gold standard for the assessment of bone and an important predictor of fracture risk. However, most fragility fractures occur in people without densitometric osteoporosis, especially in endocrinological diseases. Fracture risk estimation tools such as FRAX have improved diagnostic sensitivity but do not include additional skeletal features. Bone microarchitecture research represents an improvement in the treatment of these patients. In this document members of the Mineral and Bone Metabolism Working Group of the Spanish Society of Endocrinology and Nutrition review new advances in dual-energy X-ray absorptiometry and other complex techniques for the study of bone microarchitecture as well as the available data on type 2 diabetes and parathyroid pathology.
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Absorciometria de Fóton , Densidade Óssea , Osteoporose , Diabetes Mellitus Tipo 2 , Humanos , Osteoporose/diagnóstico , Fraturas por OsteoporoseRESUMO
La concentración sérica de fósforo oscila entre 2,5 y 4,5 mg/dl (0,81-1,45 mmol/l) en adultos, con niveles más altos en la infancia, la adolescencia y durante la gestación. El fosfato intracelular está implicado en el metabolismo intermediario y otras funciones celulares esenciales, mientras que el extracelular es fundamental para la mineralización de la matriz ósea. La fosforemia se mantiene en un estrecho rango mediante la regulación de la absorción intestinal, la redistribución y la reabsorción tubular renal de fósforo. La hipofosfatemia y la hiperfosfatemia son situaciones clínicas frecuentes, aunque, en la mayoría de las ocasiones, se trata de alteraciones leves y poco sintomáticas. Sin embargo, pueden presentarse cuadros agudos y severos que requieren tratamiento específico. En este documento elaborado por miembros del Grupo de Trabajo de Metabolismo Mineral y Óseo de la Sociedad Española de Endocrinología y Nutrición se revisan los trastornos del fosfato y se proporcionan algoritmos de manejo clínico de la hipofosfatemia y la hiperfosfatemia
Serum phosphorus levels range from 2.5 and 4.5 mg/dL (0.81-1.45 mmol/L) in adults, with higher levels in childhood, adolescence, and pregnancy. Intracellular phosphate is involved in intermediary metabolism and other essential cell functions, while extracellular phosphate is essential for bone matrix mineralization. Plasma phosphorus levels are maintained within a narrow range by regulation of intestinal absorption, redistribution, and renal tubular absorption of the mineral. Hypophosphatemia and hyperphosphatemia are common clinical situations, although changes are most often mild and oligosymptomatic. However, acute and severe conditions that require specific treatment may occur. In this document, members of the Mineral and Bone Metabolism Working Group of the Spanish Society of Endocrinology and Nutrition review phosphate disorders and provide algorithms for adequate clinical management of hypophosphatemia and hyperphosphatemia
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Humanos , Fosfatos/metabolismo , Hipofosfatemia/etiologia , Hipofosfatemia/fisiopatologia , Hiperfosfatemia/etiologia , Hiperfosfatemia/terapia , Hipofosfatemia/terapia , Fósforo na Dieta , Raquitismo Hipofosfatêmico/diagnóstico , Diagnóstico DiferencialRESUMO
Serum phosphorus levels range from 2.5 and 4.5mg/dL (0.81-1.45 mmol/L) in adults, with higher levels in childhood, adolescence, and pregnancy. Intracellular phosphate is involved in intermediary metabolism and other essential cell functions, while extracellular phosphate is essential for bone matrix mineralization. Plasma phosphorus levels are maintained within a narrow range by regulation of intestinal absorption, redistribution, and renal tubular absorption of the mineral. Hypophosphatemia and hyperphosphatemia are common clinical situations, although changes are most often mild and oligosymptomatic. However, acute and severe conditions that require specific treatment may occur. In this document, members of the Mineral and Bone Metabolism Working Group of the Spanish Society of Endocrinology and Nutrition review phosphate disorders and provide algorithms for adequate clinical management of hypophosphatemia and hyperphosphatemia.
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Hiperfosfatemia/diagnóstico , Hiperfosfatemia/terapia , Hipofosfatemia/diagnóstico , Hipofosfatemia/terapia , Árvores de Decisões , Homeostase , Humanos , Fosfatos/fisiologiaRESUMO
Recent studies have assessed diet quality of low-income U.S. children participating in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC), but differences by race/ethnicity remain unknown. We assessed racial/ethnic disparities in nutrient intake from dietary sources (not supplements) among children participating in WIC, with a focus on priority nutrients and food groups for future WIC food package revisions, as described in a recent report by the National Academies of Sciences, Engineering, and Medicine (NASEM). We used data from the 2011-2014 National Health and Nutrition Examination Surveys (NHANES) and multivariable linear regression analysis to evaluate relationships between race/ethnicity and nutrient/food group intake of children participating in WIC. All data were analyzed using SAS 9.4 survey procedures, accounting for the complex survey design of the NHANES. Compared to non-Hispanic White children, Hispanic children had diets with better nutrient distribution and lower dietary energy density, while non-Hispanic Black children had diets with poorer nutrient intake. Hispanic children had higher potassium and fiber intake, and consumed more legumes, while non-Hispanic Black children had lower calcium and vitamin D intake, higher sodium intake, and lower total dairy intake, compared to non-Hispanic White children. These findings can inform WIC nutrition education messages and future food package revisions.
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Negro ou Afro-Americano , Dieta , Hispânico ou Latino/estatística & dados numéricos , Fatores Socioeconômicos , Negro ou Afro-Americano/etnologia , Negro ou Afro-Americano/estatística & dados numéricos , Pré-Escolar , Estudos Transversais , Dieta/etnologia , Dieta/estatística & dados numéricos , Feminino , Assistência Alimentar , Disparidades nos Níveis de Saúde , Humanos , Lactente , Masculino , Inquéritos Nutricionais , Estados UnidosRESUMO
Mexico is the world's largest producer, exporter, and consumer of avocados. "Hass" avocado is the most commercialized cultivar, while the native Mexican avocado varieties have been displaced. Thus, studies regarding their chemical and nutraceutical characterization are scarce. We studied the total lipid content, fatty acid profile, carotenoid content, and free radical-scavenging activity of the fruit pulp from 12 accessions of the native Mexican avocado (Persea americana var. drymifolia). The results show that the chemical and nutraceutical characteristics depend on the accession type. The total lipid content ranged from 13.22 to 23.41%. The major saturated fatty acid in all the avocado accessions was palmitic acid (15.54-22.68%). Monounsaturated fatty acids, like oleic (56.58-74.19%), linoleic (5.62-16.85%) and linolenic (0.63-2.85%) acids were the most abundant unsaturated fatty acids in all the native Mexican avocado accessions. The total carotenoid content (1.57 to 7.83 mg eq. of ß-carotene 100 g-1 fresh weight) and the free radical-scavenging activity (7.58-88.62 mMol trolox equivalent 100 g-1 fresh weight) also varied significantly (p < 0.05) among accessions. Native Mexican avocados have a great nutraceutical potential due to their high content of omega-9, omega-6, and omega-3 fatty acids and carotenoids. These compounds have been reported to display antioxidant activities and protect against cardiovascular diseases.
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Persea , Carotenoides , Ácidos Graxos , Radicais Livres , MéxicoRESUMO
Resumen OBJETIVO: Primario: observar si el grado de dificultad de la intervención y la experiencia del equipo quirúrgico influyen en la incidencia de complicaciones y consecuencias adversas de la cirugía laparoscópica ginecológica. Secundario: valorar cuál de las dos variables influye de forma más negativa y, además, estudiar los mecanismos que pueden implementarse en la práctica diaria, clínica y formativa para reducir las consecuencias quirúrgicas adversas. MATERIALES Y MÉTODOS: Estudio descriptivo, observacional y retrospectivo efectuado en el Hospital Universitario Virgen Macarena de Sevilla entre enero de 2015 y febrero de 2016. Se incluyeron todas las cirugías laparoscópicas indicadas por diagnóstico de patología benigna. La muestra se dividió en 3 grupos en función de la distribución de los cirujanos y su experiencia quirúrgica. Las intervenciones se categorizaron conforme a la dificultad en tres grados (el 3 correspondió al de mayor dificultad). RESULTADOS: Se incluyeron 195 cirugías laparoscópicas. La experiencia del equipo quirúrgico fue un factor determinante en los desenlaces heterogéneos, por lo que el grado de dificultad de la intervención tuvo una relación más estrecha con las consecuencias quirúrgicas adversas. Por lo que se refiere al grado de dificultad previo a la cirugía, solo fueron estadísticamente significativos el tiempo quirúrgico y la pérdida hemática, que fue mayor en las intervenciones grado 3. La estancia hospitalaria media, las reintervenciones, reingreso, conversión a laparotomía o complicaciones también fueron mayores en el grupo con grado 3 de dificultad y menor en el 1, pero sin significación estadística. CONCLUSIÓN: Con base en lo reportado se desprende que el grado de dificultad de la intervención tiene más influencia en las complicaciones quirúrgicas que la experiencia del cirujano y el ayudante.
Abstract OBJECTIVE: Primary: to observe whether the degree of difficulty of the intervention and the experience of the surgical team influence the incidence of complications and adverse consequences of laparoscopic gynecological surgery. Secondary: to assess which of the two variables influences more negatively and, in addition, to study the mechanisms that can be implemented in daily, clinical and educational practice to reduce the adverse surgical consequences. MATERIALS AND METHODS: Retrospective, observational and descriptive study carried out in the Virgen Macarena University Hospital of Seville, between January 2015 and February 2016. Including all laparoscopic surgeries performed for benign pathology in that period. The sample has been divided into 3 groups according to the distribution of the surgeons, taking into account their surgical experience. On the other hand, the interventions have been categorized according to the difficulty in three levels (with 3 being the most difficult). RESULTS: 195 laparoscopic surgeries have been collected. The experience of the surgical team has been a factor that has shown heterogeneous results, so the level of difficulty of the intervention seems more related to the surgical adverse effects. Regarding the level of difficulty prior to surgery, only surgical time and blood loss were statistically significant, which was greater in level 3 interventions. Variables such as average hospital stay, reoperations, readmission, conversion to laparotomy or complications were also higher in the group of level 3 of difficulty and lower in group 1, but without statistical significance. CONCLUSION: The results raise the theory of which the level of difficulty of the intervention influences of more direct form in the surgical complications that the surgical experience of the surgeon and the assistant.
RESUMO
Cardiovascular diseases are a health problem throughout the world, especially in people with diabetes. The identification of cardiovascular disease biomarkers can improve risk stratification. Sclerostin is a modulator of the Wnt/ß-catenin signalling pathway in different tissues, and it has recently been linked to vascular biology. The current study aimed to evaluate the relationship between circulating sclerostin levels and cardiovascular and non-cardiovascular mortality in individuals with and without type 2 diabetes. We followed up a cohort of 130 participants (mean age 56.8 years; 48.5% females; 75 with type 2 diabetes; 46 with prevalent cardiovascular disease) in which serum sclerostin levels were measured at the baseline. Time to death (both of cardiovascular and non-cardiovascular causes) was assessed to establish the relationship between sclerostin and mortality. We found that serum sclerostin concentrations were significantly higher in patients with prevalent cardiovascular disease (p<0.001), and independently associated with cardiovascular mortality (p = 0.008), showing sclerostin to be a stronger predictor of mortality than other classical risk factors (area under the curve = 0.849 vs 0.823). The survival analysis showed that an increase of 10 pmol/L in the serum sclerostin level resulted in a 31% increase in cardiovascular mortality. However, no significant association was observed between sclerostin levels and non-cardiovascular mortality (p = 0.346). From these results, we conclude that high sclerostin levels are related to mortality due to cardiovascular causes. The clinical implication of these findings is based on the possible use of serum sclerostin as a new biomarker of cardiovascular mortality risk in order to establish preventive strategies.