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1.
Data Brief ; 47: 108966, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36879610

RESUMEN

With the aim to calculate through the Classical Laminate Theory the most reliable stress value generated in the 90° layer of cross-ply laminates tested under fatigue loading [1], the mechanical and thermal properties were measured for a novel composite material TP402/T700S 12K/35% using two different unidirectional tape prepregs, 30 and 150 g/m2. 0° unidirectional (UD-0), 90° unidirectional (UD-90), ±45°, 10° off-axis and samples for thermal properties measurements were manufactured in an autoclave. Tensile and thermal tests were performed in an Instron 4482 and in an oven, respectively, using strain gauges for all of them. Data collected was analysed following technical standards. The values of the mechanical properties, i.e., elastic and shear stiffness and strength, and the coefficients of thermal expansion (CTEs), α 1 and α 2 , were calculated also obtaining the corresponding statistics.

2.
Braz J Microbiol ; 54(1): 553-557, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36342659

RESUMEN

In recent years, new Chlamydia species, other than Chlamydia psittaci, have been confirmed in birds. One of these new species, Chlamydia avium, was reported mainly in pigeons and parrots in Europe. Analyzing multimucosal swabs obtained from 7 Amazon parrots (Amazona aestiva) from illegal trade and admitted to the Reserva Experimental Horco Molle (Tucuman, Argentina) for their rehabilitation, we describe the finding of the genetic material of C. avium in 2 of these birds. There were no signs compatible with the chlamydiosis-like disease in the studied birds or in the rehabilitation center staff. The use of sensitive and wide-ranging molecular tools is necessary for the detection of all Chlamydiaceae present in birds and would aid in the selection of control measures in wildlife rehabilitation centers to prevent outbreaks in the facilities and the introduction of pathogens in nature. We provide the first molecular evidence of the presence of C. avium in Argentina and a new species of psittacine host.


Asunto(s)
Amazona , Enfermedades de las Aves , Chlamydia , Loros , Psitacosis , Animales , Amazona/microbiología , Argentina , Enfermedades de las Aves/microbiología , Psitacosis/epidemiología , Psitacosis/microbiología , Psitacosis/veterinaria
3.
Transplant Proc ; 51(9): 3047-3050, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31627920

RESUMEN

A new model of tissue-engineered artificial autologous human skin developed in Andalusia is currently being transplanted into patients suffering from large burns within the Andalusian Public Healthcare System. This product is considered an advanced therapy medicinal product (ATMP) in Europe, and its clinical use implies meeting transplant and medicinal product legal requirements, being the Guidelines of Good Manufacturing Practice for ATMPs of particular importance. The preclinical research and clinical translation of the product have represented a technical, regulatory, and organizational challenge, which has taken 10 years since the first preclinical experiments were designed. Twelve patients with large burns, including 3 pediatric patients, have hitherto received artificial autologous skin grafts with an overall survival rate of 75% and positive clinical, homeostatic, and histologic results. Achieving such a milestone within our Healthcare System was possible through a multidisciplinary approach and the joint efforts of multiple publicly funded institutions and units under the coordination of the Andalusian Initiative for Advanced Therapies. In this article, we present the organizational model set up to facilitate collaboration and logistics among the professionals involved, totaling more than 80 people. The similarities between the tissue-engineered artificial autologous human skin transplant and other organ and tissue transplants, in terms of logistic requirements, reveal how regional and hospital transplant coordination have played a crucial role.


Asunto(s)
Trasplante de Piel/métodos , Piel Artificial , Atención a la Salud/organización & administración , Humanos , España
5.
Parasit Vectors ; 9(1): 305, 2016 05 26.
Artículo en Inglés | MEDLINE | ID: mdl-27229471

RESUMEN

BACKGROUND: Anaplasma marginale is a well-known cattle pathogen of tropical and subtropical world regions. Even though, this obligate intracellular bacterium has been reported in other host species different than bovine, it has never been documented in Myrmecophaga tridactyla (giant anteater) or Hippocamelus antisense (taruca), which are two native endangered species. METHODS: Samples from two sick wild animals: a Myrmecophaga tridactyla (blood) and a Hippocamelus antisense (blood and serum) were studied for the presence of A. marginale DNA through msp5 gene fragment amplification. Further characterization was done through MSP1a tandem repeats analysis and MLST scheme and the genetic relationship among previously characterized A. marginale sequences were studied by applying, eBURST algorithm and AMOVA analysis. RESULTS: Anaplasma marginale DNA was identified in the Myrmecophaga tridactyla and Hippocamelus antisense samples. Through molecular markers, we identified an identical genotype in both animals that was not previously reported in bovine host. The analysis through eBURST and AMOVA revealed no differentiation between the taruca/anteater isolate and the bovine group. CONCLUSIONS: In the present publication we report the identification of A. marginale DNA in a novel ruminant (Hippocamelus antisense) and non-ruminant (Myrmecophaga tridactyla) host species. Genotyping analysis of isolates demonstrated the close relatedness of the new isolate with the circulation population of A. marginale in livestock. Further analysis is needed to understand whether these two hosts contribute to the anaplasmosis epidemiology.


Asunto(s)
Anaplasma marginale/clasificación , Anaplasmosis/microbiología , Artiodáctilos/microbiología , Enfermedades de los Bovinos/microbiología , Xenarthra/microbiología , Anaplasma marginale/aislamiento & purificación , Animales , Proteínas de la Membrana Bacteriana Externa/genética , Bovinos , ADN Bacteriano/sangre , Femenino , Genotipo , Especificidad del Huésped , Tipificación de Secuencias Multilocus/veterinaria , Filogenia , Análisis de Secuencia de ADN/veterinaria , Secuencias Repetidas en Tándem/genética
6.
Am J Phys Anthropol ; 153(4): 653-62, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24449225

RESUMEN

Pigmentation of the skin, hair, and eyes is a complex trait controlled by multiple genetic loci. Recently a non-synonymous mutation in the pigmentation candidate gene TYRP1 was shown to be significantly associated with a blond-hair phenotype in populations from the Solomon Islands. The distribution of this mutation in the islands of Northern Island Melanesia, where the blondism phenotype is also prevalent, was unknown. Here, we present data describing the distribution of this allele in 550 individuals sampled from across this region, and test for associations between genotype at this locus and quantitatively measured skin and hair pigmentation phenotype. We report that the frequency of the 93C allele is notably lower than observed in the Solomons (0.12 vs. 0.26). The allele exhibits significant geographic heterogeneity across the islands sampled (χ(2) = 108.4, P < 0.0001). It is observed at its highest frequencies on the islands of New Ireland and New Hanover, while being almost completely absent from the large island of New Britain. Using linear regression with age, sex, and island as covariates we report that, as in the Solomons, the 93C allele is significantly associated with a decrease in hair pigmentation but not skin pigmentation. We discuss the distribution of the 93C allele across the Southwest Pacific in light of its possible place of origin and dispersal.


Asunto(s)
Color del Cabello/genética , Adulto , Antropología Física , Femenino , Frecuencia de los Genes/genética , Genotipo , Humanos , Masculino , Melanesia/epidemiología , Fenotipo
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