Mesenchymal stem cells and their use as cell replacement therapy and disease modelling tool.

Mesenchymal stem cells (MSCs) from adult somatic tissues may differentiate in vitro and in vivo into multiple mesodermal tissues including bone, cartilage, adipose tissue, tendon, ligament or even muscle. MSCs preferentially home to damaged tissues where they exert their therapeutic potential. A striking feature of the MSCs is their low inherent immunogenicity as they induce little, if any, proliferation of allogeneic lymphocytes and antigen-presenting cells. Instead, MSCs appear to be immunosuppressive in vitro. Their multilineage differentiation potential coupled to their immuno-privileged properties is being exploited worldwide for both autologous and allogeneic cell replacement strategies. Here, we introduce the readers to the biology of MSCs and the mechanisms underlying immune tolerance. We then outline potential cell replacement strategies and clinical applications based on the MSCs immunological properties. Ongoing clinical trials for graft-versus-host-disease, haematopoietic recovery after co-transplantation of MSCs along with haematopoietic stem cells and tissue repair are discussed. Finally, we review the emerging area based on the use of MSCs as a target cell subset for either spontaneous or induced neoplastic transformation and, for modelling non-haematological mesenchymal cancers such as sarcomas

Isolation of entomopathogenic nematodes and control of Phyllophaga vetula Horn in Oaxaca, Mexico

This study aimed to isolate native entomopathogenic nematodes (EPN) in the Central Valleys of Oaxaca and to determine their potential for control of white grub (Phyllophaga vetula Horn). Fifty-five (55) soil samples were collected in 13 communities in the period August to October 2008 and 29.1% of these were found positive for EPN. Five isolates were selected for their apparent pathogenicity to third instar Galleria mellonella; two of the genus Steinernema and three Heterorhabditis. After evaluating these five isolates for control of white grubs, the Heterorhabditidae EPN presented the lowest values for both lethal dosages and lethal times. Using  polymerase chain reaction (PCR) procedures, the species Heterorhabditis mexicana, Steinernema  carpocapsae and Steinernema feltiae were identified. We concluded that H. mexicana was the most effective isolate for control of P. vetula larvae.Key words: Entomopathogenic nematodes, Steinernema, Heterorhabditis, bioassays, lethal dosages

INTERVENCIONES ENFERMERAS EN TRASTORNOS DUALES: ADICCIONES RELACIONADAS CON TRASTORNOS DE CONDUCTA EN LA INFANCIA

This study aims to analyze the causes and progression of Disruptive Behavior Disorders (DBD), in childhood / adolescence, and its impact on the development of a possible Substance Abuse Disorder (SAD) in order to establish action strategies from nursing, using the taxonomy NANDA-NOC-NIC. The methodology is the systematic search of major databases (Cochrane Library, Tripdatabase, Medline, Lilacs, and CUIDEN), setting narrative and systematic reviews, meta-analysis, Randomized Clinical Trials (RCTs) and non-randomized and observational or descriptive studies indexed in the last ten years, as the selection criteria. Under these criteria finally we selected a total of 20 articles for their special relevance and relationship to the subject of this study. Based on this review, and taking particular account of the nursing study of Miotto Wright, which proposes the Critical-Holistic Model, the protocol outlines a plan of nursing care. The analysis reveals the existence of a cause-effect relationship between the DBD, increasingly common among children and adolescents, and the development of SAD and the great influence the family and community have on this progression. That is why, we believe that the nursing role can be crucial, in the levels of early diagnosis, secondary prevention, treatment, and rehabilitation.El presente estudio trata de analizar las causas y la evolución de los trastornos del comportamiento perturbador (TCP), en la infancia/adolescencia, y su repercusión en el desarrollo de un posible trastorno por abuso de sustancias (TAS), con el fin de establecer estrategias de actuación desde Enfermería, empleando para ello la taxonomía NANDA-NOC-NIC.La metodología utilizada es la búsqueda sistemática en las principales bases de datos (Biblioteca Cochrane, Tripdatabase, Medline, Lilacs, y CUIDEN), estableciendo como criterios de selección las revisiones sistemáticas y narrativas, metaanálisis, ensayos clínicos aleatorizados (ECA´S) y no aleatorizados y estudios descriptivos u observacionales de calidad indexados en los últimos diez años. Bajo estos criterios seleccionamos finalmente un total de 20 artículos, por su especial relevancia y relación con el tema objeto del presente estudio.En base a esta revisión, y teniendo en cuenta especialmente estudios enfermeros como el de Miotto Wright, que propone el Modelo Crítico-Holístico, esbozamos el protocolo de un Plan de Cuidados.Del análisis realizado se desprende la existencia de una relación de causa-efecto entre los TCP, cada vez más frecuentes entre niños y adolescentes y el desarrollo de un TAS, así como la gran influencia que en esta evolución tiene el entorno familiar y comunitario. Es por ello que consideramos que el papel de Enfermería puede ser fundamental, en los niveles de diagnóstico precoz, prevención secundaria, tratamiento y rehabilitación

EL TRASTORNO LÍMITE DE PERSONALIDAD: LA FILOSOFÍA DIALÉCTICA COMO BASE DE LA INTERACCIÓN ENFERMERO PACIENTE

Borderline personality disorder was defined in the nineteenth century as the boundary between psychosis and neurosis. It has three major clinical components: a shaky sense of self, a high level of impulsivity and high affective instability. Due in part to the lack of knowledge of the underlying dynamics, working with patients with BPD is often difficult for nursing staff. The present study aims to propose guidelines that encourage interactive psychotherapy in the care of patients with this disorder. To this objective we conducted a bibliographic search in Nursing and other health science databases (Cochrane, Tripdatabase, Medline, CINAHL and care), using Mesh descriptors: "Borderline personality disorder" AND "therapy" and “Borderline Personality" AND "nursing cares", indexed from 01/01/2000, finally selecting a total of 17 studies for their relevance and relationship to the subject under study. Based on the results, we suggest the use of dialectical philosophy, the basis of dialectical-behavioral therapy developed by Marsha Linehan, a tool that will lead to a better nurse-patient relationship, greater adherence to treatment and greater efficiency in managing time and resources. El trastorno límite de personalidad fue definido ya en el siglo XIX, como límite entre la psicosis y la neurosis. Presenta tres componentes clínicos principales: un inestable sentido del yo, un alto nivel de impulsividad y una elevada inestabilidad afectiva . Debido en parte, a la falta de conocimiento de la dinámica subyacente, el trabajo con pacientes con TLP resulta a menudo difícil para el personal de Enfermería.El presente estudio tiene por objeto proponer orientaciones psicoterapéuticas que favorezcan la interacción en el cuidado de pacientes con este trastorno. Para este fin se lleva a cabo una búsqueda bibliográfica en las principales basos de datos de Enfermería y del resto de ciencias de la salud (Cochrane, Tripdatabase, Medline, CINAHL y CUIDEN), empleando los descriptores Mesh: “Borderline personality disorder” AND “therapy” y“Borderline personality” AND “nursing cares”, indexados a partir del 01/01/2000, seleccionando finalmente un total de 17 estudios por su relevancia y relación con el tema.Atendiendo a los resultados obtenidos, proponemos el empleo de la filosofía dialéctica, base de la terapia dialéctico-comportamental desarrollada por Marsha Linehan, como herramienta que va a conducir a una mejor relación enfermero-paciente, una mayor adherencia al tratamiento y una mayor eficiencia en la gestión de tiempo y recursos

Acute retroperitoneal bleeding due to inferior mesenteric artery aneurysm: Case report

<p>Abstract</p> <p>Background</p> <p>Visceral artery aneurysms (VAA), although uncommon, are increasingly being detected. We describe a case of spontaneous retroperitoneal hemorrhage from a ruptured IMA aneurysm associated with stenosis of the superior mesenteric artery (SMA) and celiac trunk, successfully treated with surgery.</p> <p>Methods</p> <p>A 65-year-old man presented with abdominal pain and hypovolemic shock. Abdominal CT scan showed an aneurysm of the inferior mesenteric artery with retroperitoneal hematoma. In addition, an obstructive disease of the superior mesenteric artery and celiac axis was observed.</p> <p>Results</p> <p>Upon emergency laparotomy a ruptured inferior mesenteric artery aneurysm was detected. The aneurysm was excised and the artery reconstructed by end-to-end anastomosis.</p> <p>Conclusions</p> <p>This report discusses the etiology, presentation, diagnosis and case management of inferior mesenteric artery aneurysms.</p

Social, Clinical and Microbiological Differential Characteristics of Tuberculosis among Immigrants in Spain

BACKGROUND: To identify the differential tuberculosis (TB) characteristics within the immigrant population with respect to natives in Spain. METHODOLOGY/PRINCIPAL FINDINGS: A prospective cohort study design was implemented to examine the TB cases diagnosed and starting standard antituberculous treatment in Spain, between January 1st 2006 and March 31st 2007. A logistic regression analysis was performed to determine differential characteristics. 1,490 patients were included in the study population, 1,048 natives and 442 (29.7%) immigrants. According to the multivariate analysis, the following variables were significantly associated with immigrant TB cases: younger age (OR = 3.79; CI:2.16-6.62), living in group situation (OR = 7.61; CI:3.38-12.12), lower frequency of disabled (OR:0.08; CI:0.02-0.26) and retired (OR:0.21; CI:0.09-0.48) employment status, lower frequency of pulmonary disease presentation (OR = 0.47; CI:0.24-0.92), primary or emergency care admission (OR = 1.80; CI:1.05-3.06 and OR = 2.16; CI:1.36-3.45), drug resistance (OR = 1.86; CI:1.01-3.46), treatment default (OR:2.12; CI:1.18-3.81), lower frequency of alcohol and cigarette consumption (OR = 2.10; CI:1.42-3.11 and OR = 2.85; CI:2.10-3.87 respectively), more directly observed treatment (OR = 1.68; CI:1.04-2.69), and poor understanding of TB disease and its treatment (OR = 3.11; CI:1.86-5.20). The low percentage of primary MDR-TB in the native population (0.1% vs. 2.2% of immigrants) should be noted. CONCLUSIONS/SIGNIFICANCE: The differences show the need to introduce specific strategies in the management of TB within the immigrant population, including the improvement of social and work conditions

Accelerated inbreeding depression suggests synergistic epistasis for deleterious mutations in Drosophila melanogaster

Epistasis may have important consequences for a number of issues in quantitative genetics and evolutionary biology. In particular, synergistic epistasis for deleterious alleles is relevant to the mutation load paradox and the evolution of sex and recombination. Some studies have shown evidence of synergistic epistasis for spontaneous or induced deleterious mutations appearing in mutation-accumulation experiments. However, many newly arising mutations may not actually be segregating in natural populations because of the erasing action of natural selection. A demonstration of synergistic epistasis for naturally segregating alleles can be achieved by means of inbreeding depression studies, as deleterious recessive allelic effects are exposed in inbred lines. Nevertheless, evidence of epistasis from these studies is scarce and controversial. In this paper, we report the results of two independent inbreeding experiments carried out with two different populations of Drosophila melanogaster. The results show a consistent accelerated inbreeding depression for fitness, suggesting synergistic epistasis among deleterious alleles. We also performed computer simulations assuming different possible models of epistasis and mutational parameters for fitness, finding some of them to be compatible with the results observed. Our results suggest that synergistic epistasis for deleterious mutations not only occurs among newly arisen spontaneous or induced mutations, but also among segregating alleles in natural populationsWe acknowledge the support by Uvigo Marine Research Centre funded by the “Excellence in Research (INUGA)” Programme from the Regional Council of Culture, Education and Universities, with co-funding from the European Union through the ERDF Operational Programme Galicia 2014-2020. This work was funded by Agencia Estatal de Investigación (AEI) (CGL2016-75904-C2-1-P), Xunta de Galicia (ED431C 2016-037) and Fondos Feder: “Unha maneira de facer Europa.” SD was founded by a predoctoral (FPI) grant from Ministerio de Economía y Competitividad, SpainS

Analysis of Synaptic Proteins in the Cerebrospinal Fluid as a New Tool in the Study of Inborn Errors of Neurotransmission

Abstract In a few rare diseases, specialised studies in cerebrospinal fluid (CSF) are required to identify the underlying metabolic disorder. We aimed to explore the possibility of detecting key synaptic proteins in the CSF, in particular dopaminergic and gabaergic, as new procedures that could be useful for both pathophysiological and diagnostic purposes in investigation of inherited disorders of neurotransmission. Dopamine receptor type 2 (D2R), dopamine transporter (DAT) and vesicular monoamine transporter type 2 (VMAT2) were analysed in CSF samplesfrom 30 healthy controls (11 days to 17 years) by western blot analysis. Because VMAT2 was the only protein with intracellular localisation, and in order to compare results, GABA vesicular transporter, which is another intracellular protein, was also studied. Spearman’s correlation and Student’s t tests were applied to compare optical density signals between different proteins. All these synaptic proteins could be easily detected and quantified in the CSF. DAT, D2R and GABA VT expression decrease with age, particularly in the first months of life, reflecting the expected intense synaptic activity and neuronal circuitry formation. A statistically significant relationship was found between D2R and DAT expression, reinforcing the previous evidence of DAT regulation by D2R. To our knowledge, there are no previous studies on human CSF reporting a reliable analysis of these proteins. These kinds of studies could help elucidate new causes of disturbed dopaminergic and gabaergic transmission as well as understanding different responses to L-dopa in inherited disorders affecting dopamine metabolism. Moreover, this approach to synaptic activity in vivo can be extended to different groups of proteins and diseases