Clinical and molecular characterization of Chilean patients with X-linked hypophosphatemia.

We report the most comprehensive clinical and molecular characterization of XLH patients performed in Chile. We show high prevalence of musculoskeletal burden and pain, associated with significantly impaired physical capacity and quality of life, with many relevant complications presenting more frequently than previously reported in cohorts from developed countries. INTRODUCTION: Our current understanding of the clinical presentation and natural history of X-linked hypophosphatemia (XLH) comes mainly from cohorts from developed countries, with limited data on the clinical and genetic abnormalities of XLH patients in South America. OBJECTIVE: To describe the clinical, biochemical, and molecular presentation of patients with XLH in Chile. METHODS: Patients with XLH referred by endocrinologist throughout Chile were included. Demographic data and clinical presentation were obtained from a clinical interview. Surveys were applied for quality of life (QoL), pain, and functionality. FGF23 was measured by ELISA, and genetic testing was performed. Imaging studies were conducted to assess skeletal and renal involvement. RESULTS: We included 26 patients, aged 2-64 years, from 17 unrelated Chilean families. All pediatric patients but only 40% of adults were receiving conventional therapy, while 65% of all patients had elevated alkaline phosphatase. All patients had mutations in PHEX, including 5 novel variants. Radiographic skeletal events (RSE) and enthesopathies in adults were frequent (34% and 85%, respectively). The duration of treatment was associated with fewer RSE (p < 0.05). Most adults reported pain and impaired QoL, and 50% had impaired physical capacity. The number of enthesopathies was associated with worse pain and stiffness scores (p < 0.05). CONCLUSION: Chilean patients with XLH have a high prevalence of musculoskeletal burden associated with pain and impaired physical capacity and QoL, especially in adults who were generally undertreated. These data identify a significant unmet need, inform our understanding of the current status of patients, and can guide care for XLH patients in similarly socioeconomically defined countries.

Bivalent engagement of endothelial surface antigens is critical to prolonged surface targeting and protein delivery in vivo.

Targeted drug delivery to the endothelium has the potential to generate localized therapeutic effects at the blood-tissue interface. For some therapeutic cargoes, it is essential to maintain contact with the bloodstream to exert protective effects. The pharmacokinetics (PK) of endothelial surface-targeted affinity ligands and biotherapeutic cargo remain a largely unexplored area, despite obvious translational implications for this strategy. To bridge this gap, we site-specifically radiolabeled mono- (scFv) and bivalent (mAb) affinity ligands specific for the endothelial cell adhesion molecules, PECAM-1 (CD31) and ICAM-1 (CD54). Radiotracing revealed similar lung biodistribution at 30 minutes post-injection (79.3% ± 4.2% vs 80.4% ± 10.6% ID/g for αICAM and 58.9% ± 3.6% ID/g vs. 47.7% ± 5.8% ID/g for αPECAM mAb vs. scFv), but marked differences in organ residence time, with antibodies demonstrating an order of magnitude greater area under the lung concentration vs. time curve (AUCinf 1698 ± 352 vs. 53.3 ± 7.9 ID/g*hrs for αICAM and 1023 ± 507 vs. 114 ± 37 ID/g*hrs for αPECAM mAb vs scFv). A physiologically based pharmacokinetic model, fit to and validated using these data, indicated contributions from both superior binding characteristics and prolonged circulation time supporting multiple binding-detachment cycles. We tested the ability of each affinity ligand to deliver a prototypical surface cargo, thrombomodulin (TM), using one-to-one protein conjugates. Bivalent mAb-TM was superior to monovalent scFv-TM in both pulmonary targeting and lung residence time (AUCinf 141 ± 3.2 vs 12.4 ± 4.2 ID/g*hrs for ICAM and 188 ± 90 vs 34.7 ± 19.9 ID/g*hrs for PECAM), despite having similar blood PK, indicating that binding strength is more important parameter than the kinetics of binding. To maximize bivalent target engagement, we synthesized an oriented, end-to-end anti-ICAM mAb-TM conjugate and found that this therapeutic had the best lung residence time (AUCinf 253 ± 18 ID/g*hrs) of all TM modalities. These observations have implications not only for the delivery of TM, but also potentially all therapeutics targeted to the endothelial surface.

Trends in Academic Dentistry and Oral Health Research Funding by Gender.

INTRODUCTION: Dental and oral health researchers compose a small share of the research workforce, and within this group female researchers form a much smaller share than male researchers. Additionally, a majority of full-time faculty appointments at dental schools are held by men, with women making up only 39% of full-time appointments. These factors suggest that there could be disparities between men and women in obtaining research funding. OBJECTIVE: The focus of our study was to determine whether there are gender differences in award funding obtained from the National Institute of Dental and Craniofacial Research or the National Institutes of Health (NIH). METHODS: NIH administrative data were analyzed by focusing on Research Project Grants (RPGs), the primary and most commonly used mechanism to support investigator-initiated research projects. Analyses involved 1 or 2 of the following variables: number of unique applicants or awardees, fiscal years 2007 to 2016, average age of unique applicants, awardee's degrees, awardee's age at first R01, and award rates. RESULTS: About two-thirds of RPG applicants and awardees were men. Although there were significantly more male applicants and awardees, there was no significant difference in award rate by gender, and there was no significant award rate variation through time or by degrees. The average ages of RPG applicants were similar for genders for all degrees, except that male dentists and PhD-dentists applying to the National Institute of Dental and Craniofacial Research were older and male MDs and PhD-dentists from dental schools applying to the NIH were older. CONCLUSIONS: This study demonstrated that men in the dental/oral health workforce submit more applications and receive more NIH awards than do women; however, there was no difference in award rates between women and men and no difference in ages by gender at which the first R01 awards are received. KNOWLEDGE TRANSFER STATEMENT: Analyses of the implications of this study by the academic dentistry and oral health community could lead to establishing opportunities to expand the representation of women in dental and oral health research. Increasing the number of applications submitted by women may help achieve an equitable balance of grantees in the workforce.

Vascular endothelial effects of collaborative binding to platelet/endothelial cell adhesion molecule-1 (PECAM-1).

Targeting drugs to endothelial cells has shown the ability to improve outcomes in animal models of inflammatory, ischemic and thrombotic diseases. Previous studies have revealed that certain pairs of ligands (antibodies and antibody fragments) specific for adjacent, but distinct, epitopes on PECAM-1 enhance each other's binding, a phenomenon dubbed Collaborative Enhancement of Paired Affinity Ligands, or CEPAL. This discovery has been leveraged to enable simultaneous delivery of multiple therapeutics to the vascular endothelium. Given the known role of PECAM-1 in promoting endothelial quiescence and cell junction integrity, we sought here to determine if CEPAL might induce unintended vascular effects. Using a combination of in vitro and in vivo techniques and employing human and mouse endothelial cells under physiologic and pathologic conditions, we found only modest or non-significant effects in response to antibodies to PECAM-1, whether given solo or in pairs. In contrast, these methods detected significant elevation of endothelial permeability, pro-inflammatory vascular activation, and systemic cytokine release following antibody binding to the related endothelial junction protein, VE-Cadherin. These studies support the notion that PECAM-1-targeted CEPAL provides relatively well-tolerated endothelial drug delivery. Additionally, the analysis herein creates a template to evaluate potential toxicities of vascular-targeted nanoparticles and protein therapeutics.

Diseño y validación de un cuestionario para valorar las actitudes de los escolares hacia la discapacidad visual / Desenvolvimento e validação de um questionário para avaliar a atitude de escolares em relação à deficiência visual / Design and validation of a students attitudes towards visual impairment questionnaire

Este artículo tiene como objetivo el desarrollo y validación de un instrumento específico para conocer las actitudes que los escolares sin discapacidad de tercer ciclo de Educación Primaria mantienen hacia la población de personas con discapacidad visual y hacia su potencial inclusión en el área curricular de Educación Física. El desarrollo de la escala se realizó a partir de cuatro pasos nucleares: revisión de la literatura existente, elaboración de un banco de ítems, evaluación de los ítems seleccionados por un grupo de expertos y escolares, y aplicación a una muestra representativa de la población total. La validación del cuestionario se llevó a cabo con una muestra de 910 estudiantes de la edad señalada en la Comunidad Autónoma de Castilla-La Mancha (España). La fiabilidad se midió en términos de consistencia interna, obteniendo un Alfa de Cronbach de ,843 y de correlación de los elementos, presentándose tres factores. La validez se evaluó en términos de contenido, concurrencia, discriminación y de constructo. Los resultados obtenidos desvelan la validez y fiabilidad de la escala para evaluar la actitud de los escolares sin discapacidad hacia sus pares con discapacidad visual y hacia su potencial inclusión en el área curricular de Educación Física (AU)

This article aims to develop and validate a specific instrument to reveal attitudes that non-disabled students of 5th and 6th grade of Primary School maintain towards the population of people with visual impairment and the potential inclusion of these peers into the general physical education (GPE). Te development of the scale was conducted following four nuclear steps: review of the literature, development of an item bank, evaluation of items selected by a panel of experts and same age students, and application to a representative sample of the total population. The validation of the questionnaire was conducted using a sample of 910 students from the age indicated in Castilla-La Mancha (Spain). Reliability was measured in terms of internal consistency (Cronbach's alpha, obtaining ,843 and elements' correlation. Validity was assessed in terms of content validity, concurrent validity, discriminant validity and construct validity. Te results reveal the validity and reliability of the scale in terms of assessing the attitudes towards peers with visual impairment in general physical education (GPE) (AU)

Este artigo tem como objetivo o desenvolvimento e validação de um instrumento específico para conhecer as atitudes de escolares sem deficiência de quinto e sexto ano do ensino primário em relação à pessoas com deficiência visual e o potencial de inclusão desses indivíduos na área da Educação Física. O desenvolvimento da escala foi realizado seguindo quatro passos nucleares: revisão de literatura, desenvolvimento de um banco de itens, avaliação dos itens selecionados por um painel de especialistas e alunos da mesma idade, e a aplicação em uma amostra representativa da população total. A validação do questionário foi realizada com uma amostra de 910 estudantes da idade indicada na Comunidade Autônoma da Castilla-La Macha (Espanha). A fiabilidade foi medida em relação à consistência interna, obtendo um Alfa de Cronbach de ,843 e de correlação dos elementos apresentado em três fatores. Foi avaliada a validade de conteúdo, concorrência, discriminação e construção. Os resultados mostraram validez e fiabilidade da escala para avaliar a atitude dos escolares sem deficiência em relação à pessoas com deficiência visual e o potencial de inclusão desses indivíduos na área da Educação Física (AU)

Correction: A study of the depth and size of concave cube Au nanoparticles as highly sensitive SERS probes.

Correction for 'A study of the depth and size of concave cube Au nanoparticles as highly sensitive SERS probes' by J. M. Romo-Herrera et al., Nanoscale, 2016, 8, 7326-7333.

Tumor-induced osteomalacia: experience from a South American academic center.

The majority of tumor-induced osteomalacia cases have been reported in the Northern Hemisphere and Asia. In this first series of South American patients, we show that the clinical presentation and sensitivity of plasmatic fibroblast growth factor 23 and somatostatin analog-based imaging are similar to those described in other populations. INTRODUCTION: Describe the experience of clinical presentation, diagnostic study, and treatment of patients with tumor-induced osteomalacia (TIO) in a South American academic center in comparison to literature. METHODS: Analysis of the records of patients diagnosed with TIO. The clinical presentation, diagnostic studies, and treatment were analyzed. Fibroblast growth factor 23 (FGF23) was measured by ELISA. RESULTS: Six patients were diagnosed with TIO during the studied period. The patients' median age was 53 years (range 22-64). All patients presented with weakness and pain in the extremities. Four experienced fractures during their evolution. The median time to diagnosis was 4.5 years (1-20). Biochemical studies showed hypophosphatemia, median of 1.4 mg/dL (1.2-1.6), with low maximum rates of tubular reabsorption of phosphate adjusted for glomerular filtration rate. FGF23 was elevated in 4/6 patients and inappropriately normal in the other two. In three patients, the location of the tumor was clinically evident and confirmed with anatomical imaging. In the remaining patients, two tumors were located with 68Ga DOTATATE-PET/CT and one with OctreoScan. The causal tumors were located in the lower extremities in five patients and invading the frontal sinus in one patient. In all patients, tumors were successfully removed. Within 14 days, there was normalization of phosphate and FGF23 levels and resolution of clinical symptoms in all patients. In all cases, the histopathology was compatible with a phosphaturic mesenchymal tumor. CONCLUSIONS: The clinical presentation, delay time to diagnosis, FGF23 diagnostic sensitivity and histopathology in this first series of South American patients is similar to those described in other populations. The success of localization by somatostatin analog-based imaging, suggests this may the optimal imaging modality.

A study of the depth and size of concave cube Au nanoparticles as highly sensitive SERS probes.

High and uniform near fields are localized at the eight similar sharp corners of cubic gold nanoparticles. Moreover, by introducing concavity in the particle lateral planes, such field intensities can be further increased and tuned in the near infrared region without altering the overall size of the nanoparticles. Herein, we perform a thorough investigation of the morphological, crystallographic and plasmonic properties of concave gold nanocubes (GNCs) in the sub-70 nm size range, for their potential application as highly efficient SERS substrates in size-limiting cases. Theoretical calculations indicate that the highest increment of the near-field is located at the eight sharp tips and, interestingly, a medium near-field increment is also activated over the volume next to the concave surface. Remarkably, the plasmonic response of the concave cubic morphology showed great sensitivity to the concavity degree. Experimental SERS analysis nicely matches the outcome of the theoretical model, confirming that medium-sized concave GNCs (35 nm side length) possess the highest SERS activity upon excitation with a 633 nm laser, whereas larger 61 nm side concave GNCs dominate the optical response at 785 nm. Due to their size-intensity trade off, we envision that such small concave gold nanocubes can provide a highly active and efficient SERS platform for size-limiting applications, especially when near infrared excitations are required.

14-3-3 Proteins regulate Akt Thr308 phosphorylation in intestinal epithelial cells.

Akt activation has been associated with proliferation, differentiation, survival and death of epithelial cells. Phosphorylation of Thr308 of Akt by phosphoinositide-dependent kinase 1 (PDK1) is critical for optimal stimulation of its kinase activity. However, the mechanism(s) regulating this process remain elusive. Here, we report that 14-3-3 proteins control Akt Thr308 phosphorylation during intestinal inflammation. Mechanistically, we found that IFNγ and TNFα treatment induce degradation of the PDK1 inhibitor, 14-3-3η, in intestinal epithelial cells. This mechanism requires association of 14-3-3ζ with raptor in a process that triggers autophagy and leads to 14-3-3η degradation. Notably, inhibition of 14-3-3 function by the chemical inhibitor BV02 induces uncontrolled Akt activation, nuclear Akt accumulation and ultimately intestinal epithelial cell death. Our results suggest that 14-3-3 proteins control Akt activation and regulate its biological functions, thereby providing a new mechanistic link between cell survival and apoptosis of intestinal epithelial cells during inflammation.

Osteoporosis del varón: hallazgos clínicos y de la densitometría ósea en 70 casos / Frequency and causes of osteoporosis among males referred for bone densitometry

Background: Among males, osteoporosis is less common than in women, but can also be a health issue. Aim: To report the frequency and clinical manifestations of osteoporosis among males referred to perform a bone densitometry. Material and Methods: All densitometries performed during one year at a clinical institution were analyzed and those corresponding to males aged over 18 years were selected to review the clinical record of the patient. Osteoporosis was defined as a bone mineral density T score < -2.5 among males aged over 50 years or a Z score below -2.0 and a history of osteoporotic fracture among males aged less than 50 years. Results: Of 5792 densitometries performed, 439 (8 percent) corresponded to males aged more than 18 years. Among these 156 (82 percent aged more than 50 years) had an abnormal densitometry. Seventy patients had osteoporosis, (67 percent only by DXA) and the rest had an osteoporotic fracture. Mean age and body mass index of the latter was 62 +/- 15 years and 25.9+/- 3 kg/m2, respectively. Forty two percent had osteoporosis in the spine, 35 percent in the hip and 23 percent in both sites. Thirty six of the 70 patients with osteoporosis (51 percent) had a history of osteoporotic fracture in column, hip, wrist and other sites in 55, 11, 8 and 26 percent respectively. Seventy eight percent of these patients were aged more than 50 years. The most common causes of osteoporosis were idiopathic in21 percent, induced by glucocorticoids in 20 percent, associated with vitamin D deficiency in 16 percent and associated to chronic renal failure in 14 percent. Conclusions: One of six male referred for bone densitometry have osteoporosis, usually associated with other underlying diseases. In half of these patients, osteoporosisis severe.

Insulating Carbon Nanotubes by Atomic Layer Deposition for Electrical Wiring Purposes.

Carbon Nanotubes (CNTs) are coated by an insulator (Al2O3) shell using the atomic layer deposition (ALD) technique. This is achieved in large quantities (tens of milligrams per batch) for electrical wiring purposes. Here we present a transmission electron microscopy (TEM) characterization together with a detailed high resolution elemental analysis by in-column energy dispersive X-ray spectroscopy (EDXS). An excellent conformality of the insulator around the CNTs is obtained. Moreover, the elemental maps show the composition of the shell while the line scan analyses demonstrate an abrupt shell-CNT interface achieved by our ALD approach.

El recreo escolar como oportunidad de espacio y tiempo saludable / The recess school space and time as an opportunity healthy

El propósito de nuestro estudio piloto fue medir de forma objetiva la AF saludable de la población infantil a lo largo de una semana e identificar cuanta de la misma se realizaba dentro del tiempo dedicado al recreo escolar. La muestra estaba compuesta por 36 niños de 11 a 12 años de una escuela de la provincia de Toledo en España. El instrumento utilizado fue el acelerómetro. La mayoría de los niños y niñas no cumplían las recomendaciones de AF saludable. En relación a la cantidad de AF saludable realizada en los recreos durante la semana, ésta presentó un peso importante (AU)

The purpose of our pilot study was to measure objectively the amount of moderate to vigorous PA (MVPA) children engaged over a week and to identify how much of it was carried out during recess time. The sample comprised 36 children aged 11 to 12 from a school in the province of Toledo in Spain. PA was measured with the accelerometer GT1M. Most of the children did not meet the PA recommendations for health. In relation to the amount of MVPA achieved during recess time, our study suggests that recess time represents an important load of the total amount of children’s MVPA registered per day (AU)

Neutrophil-derived JAML inhibits repair of intestinal epithelial injury during acute inflammation.

Neutrophil transepithelial migration (TEM) during acute inflammation is associated with mucosal injury. Using models of acute mucosal injury in vitro and in vivo, we describe a new mechanism by which neutrophils infiltrating the intestinal mucosa disrupt epithelial homeostasis. We report that junctional adhesion molecule-like protein (JAML) is cleaved from neutrophil surface by zinc metalloproteases during TEM. Neutrophil-derived soluble JAML binds to the epithelial tight junction protein coxsackie-adenovirus receptor (CAR) resulting in compromised barrier and inhibition of wound repair, through decreased epithelial proliferation. The deleterious effects of JAML on barrier and wound repair are reversed with an anti-JAML monoclonal antibody that inhibits JAML-CAR binding. JAML released from transmigrating neutrophils across inflamed epithelia may thus promote recruitment of leukocytes and aid in clearance of invading microorganisms. However, sustained release of JAML under pathologic conditions associated with persistence of large numbers of infiltrated neutrophils would compromise intestinal barrier and inhibit mucosal healing. Thus, targeting JAML-CAR interactions may improve mucosal healing responses under conditions of dysregulated neutrophil recruitment.

Influencia de la edad gestacional, el tipo de parto y la reanimación en el riesgo de neumotórax en neonatos mayores de 37 semanas / Influence of gestational age, type of delivery, and resuscitation, on the incidence of pneumothorax in term neonates

INTRODUCCIÓN: La cesárea electiva antes de las 39 semanas de edad gestacional (EG) se ha asociado a un incremento en la incidencia de distrés respiratorio iatrogénico y de neumotórax en el recién nacido a término (RNT), probablemente en relación con una mayor morbilidad respiratoria y necesidad de reanimación. Estos aspectos no han sido evaluados sistemáticamente en nuestro medio. OBJETIVO: Conocer si la EG, el tipo de parto y la intensidad de la reanimación cardiopulmonar (RCP) se asocian con un incremento en la incidencia de neumotórax en el RNT. PACIENTES Y MÉTODOS: Se estudiaron todos los RNT (≥ 37 semanas de EG) nacidos en nuestra maternidad durante el periodo 2006-2010, según el tipo de parto (vaginal, cesárea o fórceps) y su indicación en el caso de las cesáreas. Se consideró RCP avanzada la aplicación de presión positiva con mascarilla, intubación, o necesidad de compresiones torácicas y/o medicación. El diagnóstico de neumotórax fue clínico y radiológico. RESULTADOS: Se incluyeron un total de 32.238 RNT. Tipo de parto: vaginal 76,1%, cesárea 12,4% y fórceps 11,5%. La incidencia de neumotórax fue del 0,316%, siendo significativamente mayor en las cesáreas (0,85%) que en los fórceps (0,59%) o nacimientos vaginales (0,19%) (p < 0,001); en ≥ 40 semanas de EG (0,37%) frente a ≤ 39 semanas de EG (0,24%) (p = 0,033) y en RCP avanzada (4,29%) frente a RCP básica (0,18%) (p < 0,001). CONCLUSIONES: La EG ≥ 40 semanas, el parto mediante cesárea o fórceps y la RCP avanzada se asociaron significativamente a una mayor incidencia de neumotórax en el RNT. En nuestra población no se observó un aumento en la incidencia de neumotórax tras cesárea electiva en menores de 39 semanas de EG

BACKGROUND: Elective caesarean section before 39 weeks gestational age (GA) has been associated with a higher incidence of iatrogenic respiratory distress and pneumothorax in term newborn babies, probably because of a higher respiratory morbidity and the need for resuscitation. These factors have not been systematically evaluated in our patients. OBJECTIVE: To determine whether the gestational age, type of delivery, and intensity of resuscitation, are associated with an increase in the incidence of pneumothorax in term neonates. PATIENTS AND METHODS: Full term neonates (≥37 weeks GA) born in our maternity unit from January 2006 to December 2010 were studied, along with the type of delivery (vaginal, forceps or caesarean section). Advanced cardiopulmonary resuscitation (CPR) was defined as the need of bag and mask intermittent ventilation, intubation, chest compression, and/or administration of medication. The diagnosis of pneumothorax was clinical and radiological in all cases. RESULTS: A total of 32,238 full term newborns were included. Type of delivery: vaginal 76.1%, C-section 12.4%, and forceps 11.5%. The incidence of pneumothorax was 0.316%. It was significantly higher in C-section (0.85%), than in forceps (0.59%), or non-instrumental vaginal deliveries (0.19%) (P < 0.001), and in infants ≥40 weeks GA (0.37%) compared to ≤39 weeks GA (0.24%) (P = 0.033), and in advanced CPR (4.29%) compared to basic CPR (0.18%) (P < 0.001). CONCLUSIONS: A GA≥40 weeks, C-section, or forceps delivery, and advanced CPR immediately after birth were significantly associated with a higher incidence of pneumothorax in full term newborn babies. In our population, we did not observe an increase in pneumothorax among neonates born by elective C-section before 39 weeks of gestation

[Influence of gestational age, type of delivery, and resuscitation, on the incidence of pneumothorax in term neonates]. / Influencia de la edad gestacional, el tipo de parto y la reanimación en el riesgo de neumotórax en neonatos mayores de 37 semanas.

BACKGROUND: Elective caesarean section before 39 weeks gestational age (GA) has been associated with a higher incidence of iatrogenic respiratory distress and pneumothorax in term newborn babies, probably because of a higher respiratory morbidity and the need for resuscitation. These factors have not been systematically evaluated in our patients. OBJECTIVE: To determine whether the gestational age, type of delivery, and intensity of resuscitation, are associated with an increase in the incidence of pneumothorax in term neonates. PATIENTS AND METHODS: Full term neonates (≥ 37 weeks GA) born in our maternity unit from January 2006 to December 2010 were studied, along with the type of delivery (vaginal, forceps or caesarean section). Advanced cardiopulmonary resuscitation (CPR) was defined as the need of bag and mask intermittent ventilation, intubation, chest compression, and/or administration of medication. The diagnosis of pneumothorax was clinical and radiological in all cases. RESULTS: A total of 32,238 full term newborns were included. Type of delivery: vaginal 76.1%, C-section 12.4%, and forceps 11.5%. The incidence of pneumothorax was 0.316%. It was significantly higher in C-section (0.85%), than in forceps (0.59%), or non-instrumental vaginal deliveries (0.19%) (P<.001), and in infants ≥ 40 weeks GA (0.37%) compared to ≤ 39 weeks GA (0.24%) (P=.033), and in advanced CPR (4.29%) compared to basic CPR (0.18%) (P<.001). CONCLUSIONS: A GA ≥ 40 weeks, C-section, or forceps delivery, and advanced CPR immediately after birth were significantly associated with a higher incidence of pneumothorax in full term newborn babies. In our population, we did not observe an increase in pneumothorax among neonates born by elective C-section before 39 weeks of gestation.

Neurocisticercosis en el embarazo / Neurocysticercosis in pregnancy

La NCC constituye la parasitosis más común del cerebro y uno de los problemas neurológicos más frecuentes entre la población de México y otros países en vías de desarrollo. La NCC tiene alta prevalencia en lugares con malas condiciones de vivienda e higiene, fecalismo al aire libre y condiciones ambientales y socioeconómicas que favorecen la infestación. Esta enfermedad se clasifica en diversos síndromes de acuerdo a la localización, y numero del parásito. La sintomalogía también es variada siendo la cefalea y las convulsiones las más comunes, El tratamiento puede ser sintomático, médico y quirúrgico, su asociación al embarazo es rara, su documentación se ha presentado en forma ocasional (AU)

Neurocysticercosis (NCC) is the most common parasitic disease of the brain and one of the most common neurological problems among the population of Mexico and other developing countries. NCC is highly prevalent in places with poor housing and sanitation, outdoor defecation, and environmental and socioeconomic conditions favoring infection. This disease is classified into various syndromes according to the location and number of parasites. Symptoms are also varied with headache and seizures being the most common. Treatment may be symptomatic, medical or surgical. The association of NCC and pregnancy is rare and has only been reported occasionally (AU)

Clot penetration and retention by plasminogen activators promote fibrinolysis.

Tissue-type plasminogen activator (tPA) remains the sole thrombolytic approved by the FDA for the treatment of pulmonary embolism (PE). tPA has not been replaced by third generation plasminogen activators, e.g. Reteplase (Ret) and Tenecteplase (TNK) that circulate with longer life-spans and in theory should have more extended potency in vivo. One reason for this paradox is the inability to assign units of activity to plasminogen activators based on specific biologically relevant standards, which impairs objective comparison. Here, we compare clot permeation, retention and fibrinolytic activities of tPA, TNK and Ret in vitro and clot composition over time with outcome in a mouse model of disseminated pulmonary microembolism (ME). When clots were incubated in the continuous presence of drug, tPA, TNK and Ret lysed fibrin clots identically in the absence of PA inhibitor-1 (e.g. PAI-1). Ret, which has lower fibrin affinity and greater susceptibility to inhibition by PAI-1 than tPA, was less effective in lysing plasma clots, while TNK was less effective when the fibrin content of the clots was enhanced. However, when clots were afforded only brief exposure to drug, as occurs in vivo, Ret showed more extensive clot permeation, greater retention and lysis than tPA or TNK. These results were reproduced in vivo in a mouse model of ME. These studies indicate the need for more relevant tests of plasminogen activator activity in vitro and in vivo and they show that clot permeation and retention are important potential predictors of clinical utility.

Radiosinovectomía de muñeca guiada por ultrasonido: experiencia de un caso clínico y revisión del tema / Ultrasound-guided wrist radiosynovectomy: case report and topic review

Radiosynovectomy is a local form of radiotherapy used as second-line treatment in the management of inflammatory and non-inflammatory arthropathies with unsatisfactory response to local or systemic corticosteroid therapy. Its efficacy is similar to that of surgical synovectomy, with the advantages of being a low-cost and minimally- invasive treatment that requires a shorter recovery time. Its efficacy is greater in the treatment of inflammatory arthritis characterized by synovitis, such as rheumatoid arthritis and juvenile chronic arthritis with mono/oligoarticular involvement, especially in upper extremity joints. A number of isotopes can be used in colloidal suspensions. Rhenium-186-sulphide colloid is currently indicated for the treatment of medium-sized joints. The ultrasound-guided injection is suitable for small joints, such as wrist. For proper and safe use and administration of this technique the collaboration of a trained and experienced radiologist is critical to successful treatment.

La radiosinovectomía es una forma local de radioterapia utilizada como tratamiento de segunda línea en el manejo de artropatías inflamatorias y no inflamatorias con respuesta insatisfactoria a la terapia sistémica o local con corticoesteroides. Tiene una eficacia similar a la sinovectomía quirúrgica, con las ventajas de ser un tratamiento de menor costo, menos cruento y con menor tiempo de convalecencia. Su eficacia es mayor en artropatías inflamatorias caracterizadas por sinovitis, como la artritis reumatoide y artritis crónica juvenil, con compromiso mono u oligoarticular y en articulaciones de extremidades superiores. Existen múltiples isótopos que se pueden utilizar en suspensiones coloidales, siendo el sulfuro coloidal de renio-186 el utilizado para la articulación radiocarpiana. Una técnica de administración adecuada es fundamental para el éxito del tratamiento, siendo la inyección con guía ultrasonográfica adecuada para articulaciones de volumen pequeño, instancia en la que la colaboración del médico radiólogo entrenado es fundamental.

Habilidad de cuidado de los profesionales de enfermería de unainstitución prestadora de servicios de salud / The Care ability of nursing professionals in a health care providing institution

Objetivo: Medir la habilidad de cuidado de los profesionales de enfermería que laboran en una InstituciónPrestadora de Servicios de Salud de tercer nivel de la ciudad de Sincelejo, Colombia, en el 2009. Metodología:Estudio descriptivo, cuantitativo de corte transversal: la muestra estuvo conformada por 30 enfermeros del áreaasistencial, a quienes se les aplicó el Inventario de Habilidad de Cuidado, que mide tres categorías: conocimiento,valor y paciencia. La información se procesó a través del programa Statistical Package for the Social Sciences (SPSS).Resultados: En la caracterización de los cuidadores se reportó que la edad estuvo comprendida entre 20 a 30 añosen el 53,3%, el sexo femenino predominó en el 80,0% de los participantes, el estado civil casado ocupó un 60,0%,eltiempo de experiencia laboral superó los 60 meses en el 67,0% y el 93,0% expresó no padecer enfermedades crónicas.En cuanto a la habilidad de cuidado, el 46,6% se ubicó en la categoría media, el 40,0% en la baja y el 13,3% en la alta.Conclusiones: Los resultados muestran la necesidad de fortalecer en los cuidadores profesionales las capacidadesde afrontamiento ante situaciones cotidianas del acto de cuidar, en las dimensiones conocimiento, valor ypaciencia.

Objetive: To measure the caring ability of nursing professionals that work in a third level Health Care ProvidingInstitution in Sincelejo, Colombia. Methodology: This being a descriptive cross-sectional quantitative study, thesample consisted of 30 nurses from the care area, which were administered the Care Ability Inventory, whichmeasures three categories: knowledge, value and patience. The information was processed through the StatisticalPackage for the Social Sciences: SPSS software. Results: The caregivers characterization reported that the age wasbetween 20 to 30 years in the 53,3%, females predominated in 80,0% of the participants, the marital status, married,occupied 60,0%, work experience history surpassed 60 months 67,0% and 93,0% declared not suffering any chronicillnesses. In the caring ability aspect, 46,6% were placed in the medium category, 40,0% in the low and 13,3% in thehigh. Conclusions: The results show the need to strengthen the capacity of professional caregivers to face theeveryday situations in the act of caring, in the aspects of knowledge, value and patience.