Deconstructing Difflugia: The tangled evolution of lobose testate amoebae shells (Amoebozoa: Arcellinida) illustrates the importance of convergent evolution in protist phylogeny.

Protists, the micro-eukaryotes that are neither plants, animals nor fungi build up the greatest part of eukaryotic diversity on Earth. Yet, their evolutionary histories and patterns are still mostly ignored, and their complexity overlooked. Protists are often assumed to keep stable morphologies for long periods of time (morphological stasis). In this work, we test this paradigm taking Arcellinida testate amoebae as a model. We build a taxon-rich phylogeny based on two mitochondrial (COI and NADH) and one nuclear (SSU) gene, and reconstruct morphological evolution among clades. In addition, we prove the existence of mitochondrial mRNA editing for the COI gene. The trees show a lack of conservatism of shell outlines within the main clades, as well as a widespread occurrence of morphological convergences between far-related taxa. Our results refute, therefore, a widespread morphological stasis, which may be an artefact resulting from low taxon coverage. As a corollary, we also revise the groups systematics, notably by emending the large and highly polyphyletic genus Difflugia. These results lead, amongst others, to the erection of a new infraorder Cylindrothecina, as well as two new genera Cylindrifflugia and Golemanskia.

Biallelic mismatch repair deficiency - A rare and troublesome genetic syndrome.

Biallelic mismatch repair deficiency (BMMRD) is a rare autosomal recessive disorder characterized by numerous early-onset cancers, especially gastrointestinal tumors. Biallelic germline mutations in one of four mismatch repair (MMR) genes (MLH1, MSH2, MSH6, or PMS2) cause this devastating disease. Given the rarity of the syndrome, often-asymptomatic tumors, diagnosis is frequently unrecognized or delayed. A high degree of clinical awareness is needed to identify new cases. Immunohistochemical assessment of MMR protein expression and analysis of microsatellite instability are the first tools with which to initiate the study of this syndrome in solid malignancies. MMR immunohistochemical shows a hallmark pattern with absence of staining in both neoplastic and non-neoplastic cells for the biallelic mutated gene. We present a unique case of a young boy diagnosed with invasive colon adenocarcinoma and brain tumor, with classical BMMRD features, found to have biallelic pathogenic PMS2 mutations.

Cuidados de enfermería para reducir infecciones por microorganismos oportunistas en pacientes oncológicos / Nursing care to reduce infections by opportunistic microorganisms in oncology patients

Introducción: las infecciones generadas por microorganismos oportunistas (MO) o infecciones oportunistas (IO) son causa importante de morbimortalidad en pacientes oncológicos y se les atribuyen factores relacionados con los cuidados específicos de la atención en salud. Las alteraciones en el sistema inmunológico, la multirresistencia antimicrobiana, la neutropenia febril y la interrupción de la integridad cutánea son los factores más influyentes. Objetivo: describir las principales intervenciones y estrategias para reducir IO en pacientes oncológicos. Metodología: revisión integrativa de la literatura. Se incluyeron artículos en español, inglés y portugués indexados a los tesauros MeSH Y DeCS, en las bases de datos CINAHL, Nursing Ovid, Clinicalkey; el metabuscador de Google académico y la interfaz Pubmed. Resultados: se revisaron 56 estudios, fueron organizados en tres temáticas: factores de riesgo que influyen para adquirir una IO en pacientes oncológicos, infecciones por MO y cuidados de enfermería, los cuales se agruparon en subtemas como: educación, medidas estándar, de barrera, farmacológicas, nutrición, manejo de catéteres, cavidad bucal, piel y aspectos emocionales. Discusión: se evidencian factoresque influyen en la no adherencia por parte de los profesionales que están relacionados con sus posturas, el contexto social, el sistema sanitario y características de las GPC. Conclusión: fue posible describir las intervenciones y estrategias de prevención que permiten reducir de manera importante la morbimortalidad en pacientes oncológicos.

Introduction: infections caused by opportunistic microorganisms (OM) or opportunistic infections (OI) are an important source of morbidity and mortality in oncology patients and are attributed to factors related with specific procedures in health care. Alterations of the immune system, antimicrobial multidrug resistance, febrile neutropenia and impaired skin integrity are the most influential factors. Objective: to describe the main interventions and strategies to reduce OI in oncology patients. Methodology: integrative review of the literature. Articles in Spanish, English and Portuguese indexed in the MeSH and DeCS thesauri in the CINAHL, Nursing Ovid, Clinicalkey databases; the academic Google meta-search engine and the PubMed interface, were included. Results: 56 studies were reviewed and organized into three topics: risk factors associated with the development of OI in cancer patients, infections by OM and nursing care. These topics were grouped into subtopics such as: education, standard barrier and pharmacological measures, nutrition, IV catheter care, oral cavity, skin and emotional aspects. Discussion: factors influencing non-adherence of healthcare providers were found to be related with their attitude, social context, health system and characteristics of clinical practice guidelines. Conclusion: we describe the intervention and prevention strategies which allow a significant reduction in morbimortality in oncology patients.

Consideraciones sobre el síndrome de hipermovilidad articular benigna / Considerations for benign joint hypermobility syndrome

El síndrome de hipermovilidad articular benigna es la aparición de síntomas musculoesqueléticos en individuos hipermóviles en ausencia de enfermedad reumatológica sistémica. El propósito de este estudio es mostrar los resultados de una revisión bibliográfica sobre hipermovilidad de las articulaciones y sus manifestaciones clínicas. La hipermovilidad puede ocurrir en varios trastornos diferentes del tejido conectivo, incluidos el síndrome de Marfán, el síndrome de Ehlers-Danlos y la osteogénesis imperfecta. También se puede encontrar en ciertos trastornos cromosómicos, genéticos y metabólicos. Identificar de manera habitual la hipermovilidad articular, y el síndrome de hipermovilidad articular no resulta una tarea difícil, siempre que forme parte del pensamiento clínico, lo cual ayudaría a evitar sus complicaciones y las tardanzas diagnósticas, lo que solucionaría en una medida nada despreciable los casos que se atienden regularmente en la práctica médica diaria(AU)

ABSTRACT Benign joint hypermobility syndrome is the appearance of musculoskeletal symptoms in hypermobile individuals in the absence of systemic rheumatologically disease. To show the results of a bibliographic review on joint hypermobility and its clinical manifestations. Hypermobility can occur in several different connective tissue disorders, including Marfan syndrome, Ehlers-Danlos syndrome, and osteogenesis imperfect. It can also be found in certain chromosomal, genetic, and metabolic disorders. Identifying joint hypermobility on a regular basis, and JHS is not a difficult task, as long as it is part of clinical thinking, which would help to avoid its complications and diagnostic delays, which would solve a not inconsiderable measure of cases that they are regularly cared for in daily medical practice.

Microbiome and oral squamous cell carcinoma: a possible interplay on iron metabolism and its impact on tumor microenvironment.

There is increasing evidence showing positive association between changes in oral microbiome and the occurrence of oral squamous cell carcinoma (OSCC). Alcohol- and nicotine-related products can induce microbial changes but are still unknown if these changes are related to cancerous lesion sites. In an attempt to understand how these changes can influence the OSCC development and maintenance, the aim of this study was to investigate the oral microbiome linked with OSCC as well as to identify functional signatures and associate them with healthy or precancerous and cancerous sites. Our group used data of oral microbiomes available in public repositories. The analysis included data of oral microbiomes from electronic cigarette users, alcohol consumers, and precancerous and OSCC samples. An R-based pipeline was used for taxonomic and functional prediction analysis. The Streptococcus spp. genus was the main class identified in the healthy group. Haemophilus spp. predominated in precancerous lesions. OSCC samples revealed a higher relative abundance compared with the other groups, represented by an increased proportion of Fusobacterium spp., Prevotella spp., Haemophilus spp., and Campylobacter spp. Venn diagram analysis showed 52 genera exclusive of OSCC samples. Both precancerous and OSCC samples seemed to present a specific associated functional pattern. They were menaquinone-dependent protoporphyrinogen oxidase pattern enhanced in the former and both 3',5'-cyclic-nucleotide phosphodiesterase (purine metabolism) and iron(III) transport system ATP-binding protein enhanced in the latter. We conclude that although precancerous and OSCC samples present some differences on microbial profile, both microbiomes act as "iron chelators-like" potentially contributing to tumor growth.

Screening for Anxiety in Adolescent and Adult Women: A Recommendation From the Women's Preventive Services Initiative.

DESCRIPTION: The Women's Preventive Services Initiative (WPSI), a national coalition of women's health professional organizations and patient representatives, developed a recommendation on screening for anxiety in adolescent and adult women to improve detection; achieve earlier diagnosis and treatment; and improve health, function, and well-being. The WPSI's recommendations are intended to guide clinical practice and coverage of services for the Health Resources and Services Administration and other stakeholders. The target audience for this recommendation includes all clinicians providing preventive health care to women, particularly in primary care settings. This recommendation applies to women and adolescent girls aged 13 years or older who are not currently diagnosed with anxiety disorders, including pregnant and postpartum women. METHODS: The WPSI developed this recommendation after evaluating results of a systematic review of the effectiveness of screening, accuracy of screening instruments, and benefits and harms of treatments in adolescent girls and adult women. No studies directly evaluated the overall effectiveness or harms of screening for anxiety. Twenty-seven screening instruments and their variations were moderately to highly accurate in identifying anxiety (33 individual studies and 2 systematic reviews; 171 studies total). Symptoms improved and relapse rates decreased with psychological therapies (246 randomized controlled trials [RCTs] in 5 systematic reviews) and with selective serotonin reuptake inhibitors or selective serotonin and norepinephrine reuptake inhibitors (126 RCTs in 3 systematic reviews). The WPSI also considered the effect of screening on symptom progression and identification of associated and underlying conditions, as well as implementation factors. RECOMMENDATION: The WPSI recommends screening for anxiety in women and adolescent girls aged 13 years or older who are not currently diagnosed with anxiety disorders, including pregnant and postpartum women. Optimal screening intervals are unknown, and clinical judgment should be used to determine frequency. When screening suggests the presence of anxiety, further evaluation is necessary to establish the diagnosis and determine appropriate treatment and follow-up.

Publisher Correction: The TLR7/8 agonist R848 remodels tumor and host responses to promote survival in pancreatic cancer.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

The TLR7/8 agonist R848 remodels tumor and host responses to promote survival in pancreatic cancer.

A priority in cancer research is to innovate therapies that are not only effective against tumor progression but also address comorbidities such as cachexia that limit quality and quantity of life. We demonstrate that TLR7/8 agonist R848 induces anti-tumor responses and attenuates cachexia in murine models of pancreatic ductal adenocarcinoma (PDAC). In vivo, tumors from two of three cell lines were R848-sensitive, resulting in smaller tumor mass, increased immune complexity, increased CD8+ T-cell infiltration and activity, and decreased Treg frequency. R848-treated mice demonstrated improvements in behavioral and molecular cachexia manifestations, resulting in a near-doubling of survival duration. Knockout mouse studies revealed that stromal, not neoplastic, TLR7 is requisite for R848-mediated responses. In patient samples, we found Tlr7 is ubiquitously expressed in stroma across all stages of pancreatic neoplasia, but epithelial Tlr7 expression is relatively uncommon. These studies indicate immune-enhancing approaches including R848 may be useful in PDAC and cancer-associated cachexia.

Lesiones verrucosas en la cara de una niña preescolar / Verrucous lesions on the face of a preschool girl

La leishmaniasis cutánea es una enfermedad parasitaria granulomatosa crónica que se transmite por la picadura de flebótomos infectados, esta patología afecta a todos los grupos etarios y los menores de 12 años constituyen únicamente el 10%, las manifestaciones clínicas dependerán de factores como el estado inmune y la especie de Leishmania, la forma clínica de leishmaniasis cutánea representa el 99% en los pacientes pediátricos siendo así la más frecuente, el diagnóstico se basa en criterios clínicos, epidemiológicos y de laboratorio. El tratamiento en la edad pediátrica puede hacerse con antimoniato de meglumina con buena respuesta como en los casos que presentamos a continuación

Cutaneous leishmaniasis is a chronic granulomatous parasitic disease that is transmitted by the bite of infected sandflies, this pathology affects all age groups and those under 12 years constitute only 10%, the clinical manifestations depend on factors such as the immune status and the species of leishmania, the clinical form of cutaneous leishmaniasis represents 99% in pediatric patients being the most frequent, the diagnosis is based on clinical, epidemiological and laboratory criteria. Treatment in the pediatric age can be done with meglumineantimonate with good response as in the cases presented below.

Screening for Urinary Incontinence in Women: A Recommendation From the Women's Preventive Services Initiative.

Description: Recommendation on screening for urinary incontinence in women by the Women's Preventive Services Initiative (WPSI), a national coalition of women's health professional organizations and patient representatives. The WPSI's recommendations are intended to guide clinical practice and coverage of services for the Health Resources and Services Administration and other stakeholders. The target audience for this recommendation includes all clinicians providing preventive health care for women, particularly in primary care settings. This recommendation applies to women of all ages, as well as adolescents. Methods: The WPSI developed this recommendation after evaluating evidence regarding the benefits and harms of screening for urinary incontinence in women. The evaluation included a systematic review of the accuracy of screening instruments and the benefits and harms of treatments. Indirect evidence was used to link screening and health outcomes in the chain of evidence that might support screening in the absence of direct evidence. The WPSI also considered the effect of screening on symptom progression and avoidance of costly and complex treatments, as well as implementation factors. Recommendation: The WPSI recommends screening women for urinary incontinence annually. Screening ideally should assess whether women experience urinary incontinence and whether it affects their activities and quality of life. The WPSI recommends referring women for further evaluation and treatment if indicated.

A new anti-mesothelin antibody targets selectively the membrane-associated form.

Mesothelin is a glycosylphosphatidylinositol (GPI)-anchored membrane protein that shows promise as a target for antibody-directed cancer therapy. High levels of soluble forms of the antigen represent a barrier to directing therapy to cellular targets. The ability to develop antibodies that can selectively discriminate between membrane-bound and soluble conformations of a specific protein, and thus target only the membrane-associated antigen, is a substantive issue. We show that use of a tolerance protocol provides a route to such discrimination. Mice were tolerized with soluble mesothelin and a second round of immunizations was performed using mesothelin transfected P815 cells. RNA extracted from splenocytes was used in phage display to obtain mesothelin-specific antigen-binding fragments (Fabs) that were subsequently screened by flow cytometry and ELISA. This approach generated 147 different Fabs in 34 VH-CDR3 families. Utilizing competition assays with soluble protein and mesothelin-containing serum obtained from metastatic cancer patients, 10 of these 34 VH-CDR3 families were found to bind exclusively to the membrane-associated form of mesothelin. Epitope mapping performed for the 1H7 clone showed that it does not recognize GPI anchor. VH-CDR3 sequence analysis of all Fabs showed significant differences between Fabs selective for the membrane-associated form of the antigen and those that recognize both membrane bound and soluble forms. This work demonstrates the potential to generate an antibody specific to the membrane-bound form of mesothelin. 1H7 offers potential for therapeutic application against mesothelin-bearing tumors, which would be largely unaffected by the presence of the soluble antigen.

Health Care System Measures to Advance Preconception Wellness: Consensus Recommendations of the Clinical Workgroup of the National Preconception Health and Health Care Initiative.

Preconception wellness reflects a woman's overall health before conception as a strategy to affect health outcomes for the woman, the fetus, and the infant. Preconception wellness is challenging to measure because it attempts to capture health status before a pregnancy, which may be affected by many different service points within a health care system. The Clinical Workgroup of the National Preconception Health and Health Care Initiative proposes nine core measures that can be assessed at initiation of prenatal care to index a woman's preconception wellness. A two-stage web-based modified Delphi survey and a face-to-face meeting of key opinion leaders in women's reproductive health resulted in identifying seven criteria used to determine the core measures. The Workgroup reached unanimous agreement on an aggregate of nine preconception wellness measures to serve as a surrogate but feasible assessment of quality preconception care within the larger health community. These include indicators for: 1) pregnancy intention, 2) access to care, 3) preconception multivitamin with folic acid use, 4) tobacco avoidance, 5) absence of uncontrolled depression, 6) healthy weight, 7) absence of sexually transmitted infections, 8) optimal glycemic control in women with pregestational diabetes, and 9) teratogenic medication avoidance. The focus of the proposed measures is to quantify the effect of health care systems on advancing preconception wellness. The Workgroup recommends that health care systems adopt these nine preconception wellness measures as a metric to monitor performance of preconception care practice. Over time, monitoring these baseline measures will establish benchmarks and allow for comparison within and among regions, health care systems, and communities to drive improvements.

Calcinosis cutis idiopática universal / Calcinosis cutis idiopathic universal

La calcinosis cutis es un trastorno raro causado por el depósito anormal de sales de calcio en la piel y tejido subcutáneo. Clínicamente se caracteriza por pápulas, placas o nódulos calcificados. Según su etiopatogenia se distinguen cinco tipos clínicos: distrófica, metastásica, iatrogénica, idiopática y calcifilaxis.Comunicamos el caso clínico de un paciente en edad pediátrica con una calcinosis cutis idiopática universal, sin afectación extra-cutánea. Esta publicación reviste importancia debido a lo infrecuente de esta enfermedad y a que su diagnóstico nos permite detectar padecimientos asociados, que son determinantes para el pronóstico y tratamiento.

Cutaneous calcinosis is a rare disorder caused by the deposit of abnormal calcium salts in the skin and subcutaneous tissue. Itpresents with calcified papules, plaques or nodules. Five clinical types are distinguished: dystrophic, metastatic, iatrogenic, idiopathic and calcifilaxis. This paper reports a pediatric patient with aidiopathic calcinosis cutisuniversalis, without extracutaneous manifestations. This publication is important because of the rarity of this disease. The diagnosis allows us to investigate the possible associated diseases that determine patient prognosis and treatment.

Liquen plano hipertrófico infantil generalizado / Generalized infant hypertrophic lichen planus

El liquen plano hipertrófico generalizado es una enfermedad inflamatoria autolimitada, subaguda o crónica, de origen desconocido, que afecta la piel, las mucosas y los anexos. Clínicamente se caracteriza por pápulaspoligonales, pruriginosas, violáceas o grisáceas, que confluyen formando placas con superficie hiperqueratósica de aspecto verrugoso. Es extremadamente raro en niños y su incidencia mundial es menor al 1%. Comunicamos el caso clínico de un paciente en edad pediátrica con liquen plano hipertrófico generalizado, cuyo interés radica en la peculiar edad de aparición.

Generalized hypertrophic lichen planus is a self-limited subacute or chronic inflammatory disease of unknown etiology that affects the skin, mucous membranes and skin appendages. It is characterized by pruritic, polygonal, purple or grayish papules that converge to form hyperkeratotic plaques with a warty surface. It is extremely rare in children, with a global incidence less than 1%.We report the case of a pediatric patient with generalized hypertrophic lichen planus, the interest of the case lies in reporting the particular age of onset.

Identificar distracciones en el proceso de administración de medicamentos garantiza una práctica segura / To identify distractions in the process of administering medication guarantees a safe practice

Objetivo: Identificar las distracciones que tiene el profesional de enfermería mientras realiza el proceso de administración de medicamentos en los servicios de hospitalización del Hospital Universitario Fundación Santafé de Bogotá, de tal forma que permita entender las distracciones como causas que pueden generar riesgo para cometer errores dentro del proceso. Método: Estudio descriptivo-observacional. Se aplicó la lista de chequeo Hoja de administración de medicamentos, distracciones y observación (MADOS) con las categorías de distracción mientras se administran los medicamentos, previa adaptación de validez facial y de contenido a 32 profesionales de enfermería que realizaron el proceso de administración de medicamentos durante los cuatro diferentes turnos (mañana, tarde, noche par e impar). Resultados: En los 192 procesos observados, se logró evidenciar que se presentaron en promedio 18 distracciones por procesos realizados. Las distracciones con mayor frecuencia fueron, en su orden: Otros miembros del personal y estudiantes (34.9%), Conversaciones (32%), Llamadas telefónicas y Médico (10,5%), de las cuales representaron el 77.5% del total de las diez distracciones previstas en la lista de chequeo. Conclusiones: Los hallazgos permiten aportar a la construcción teórica en enfermería de las Distracciones y de esta forma abordar un constructo que hasta el momento es desconocido y poco conceptualizado. Permitirá rediseñar y desarrollar sistemas en torno a la seguridad en el proceso de administración de medicamentos en las instituciones de salud.

Objective: To identify the distractions that the nursery professional has while administering medication in the hospitalization services in Hospital Universitario FundaciónSantafé de Bogotá, in a way that distractions can be understood as a risk factor for mistakes within the process. Method: Observational-descriptive study. The checklist Sheet of Administration of Medication, Distractions and Observation (MADOS) with Distraction Categories While Administering the Medication was applied. There was a previous adaptation of facial and content validity for 32 professionals of nursery which went through the medication administering process during the four different shifts (morning, afternoon, even and odd nights). Results: In the 192 processes observed, an average of 18 distractions was observed. The most frequent distractions were, in order: Other members of the staff and students (34.9%), Conversation (32%), Phone calls and Medic (10.5%), which are the 77.5% of a total of ten distractions considered in the checklist. Conclusions: These findings allow to contribute to the theoretical construction of Distractions in nursery, to approach a construct so far unknown and with little conceptualization. It will allow to redesign and to develop systems around the security in the process of administering of medication in health institutions.

Objetivo: Identificar as distrações que o profissional de enfermagem tem, enquanto realiza o processo de administração de medicamentos nos serviços de hospitalização do Hospital Universitario Fundación Santafé de Bogotá, de forma que permita entender as distrações como causas que podem gerar risco e levar a cometer erros no processo. Método: Estudo descritivo-observacional. Aplicou-se a lista de check-up Folha de administração de medicamentos, distrações e observação (MADOS) com as categorias de distraçãoenquanto são administrados os medicamentos, previa adaptação de validade facial e de conteúdo a 32 profissionais de enfermagem que realizaram o processo de administração de medicamentos durante os quatro diferentes turnos (manhã, tarde, noite par e ímpar). Resultados: Nos 192 processos observados, conseguiu se evidenciar que se apresentaram em média 18 distrações por processos realizados. As distraçõescom maior frequênciaforam, em ordem: Outros membros do pessoal e estudantes (34,9%), Conversas (32%), Ligaçõestelefônicas e Médico (10,5%), das quais representaram 77,5% do total das dez distrações previstas na lista de check-up. Conclusões: Os achados permitem aportar à construção teórica em enfermagem das Distrações, e desta forma, abordar um constructo que, até este momento, é desconhecido e pouco conceitualizado. Permitirá redesenhar e desenvolver sistemas em torno à segurança no processo de administração de medicamentos nas instituições de saúde.