60 research outputs found

    Transición del cuidado pediátrico al cuidado adulto ¿una realidad para la cual no estamos preparados?

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    10 páginasIntroduction:Survival of pediatric patients with chronic diseases is increasing worldwide, a trend that is also seen in Colombia. Most of these patients will make the transition to adulthood and adult medical services. Objective:To analyze the transition process of patients with chronic diseases from pediatric to adult care and describe the characteristics, barriers, risks, and consequences of this process. Materials and methods:A literature review search for related information. Results:50 articles were selected from different academic journals. The assembled information was used to describe: (i) definitions of chronic disease, (ii) transition and transfer to adult care, (iii) risks of adolescents with chronic diseases, (iv) preparation and the different steps to make the transition, and (v) special considerations. Conclusions:The existing literature highlights the importance of undertaking an essential transition process to ensure the maintenance of health in patients with chronic diseases. However, in Colombia there are no guidelines or literature on the subject.Introducción: La sobrevida de pacientes pediátricos con enfermedades crónicas cada vez es mayor a nivel mundial, tendencia que es similar en Colombia. La mayoría de estos pacientes realizaran la transición a la adultez y con ésta a los servicios médicos de adultos. Objetivo: Evidenciar la importancia de hacer una adecuada transición del paciente con enfermedades crónicas, del cuidado pediátrico a la atención del adulto, describir las características, barreras, riesgos y consecuencias de un proceso inadecuado. Materiales y métodos: Se realizó revisión de la literatura a partir de la búsqueda de información relacionada. Resultados: Se seleccionaron 50 artículos en diferentes revistas académicas. Con la información expuesta se describen las definiciones de enfermedad crónica, transición y transferencia al cuidado adulto, los riesgos de los adolescentes con enfermedades crónicas, la preparación y los diferentes pasos para hacer la transición y las consideraciones especiales. Conclusiones: La literatura a nivel mundial recalca la importancia de la realización de un proceso de transición esencial para garantizar el mantenimiento de la salud en los pacientes con enfermedades crónicas, sin embargo, no se encuentran guías o literatura al respecto realizadas en Colombia

    Chemoprevention of BBN-Induced Bladder Carcinogenesis by the Selective Estrogen Receptor Modulator Tamoxifen

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    AbstractBladder cancer is the fifth most frequent tumor in men and ninth in women in the United States. Due to a high likelihood of recurrence, effective chemoprevention is a significant unmet need. Estrogen receptors (ERs), primarily ERβ, are expressed in normal urothelium and urothelial carcinoma, and blocking ER function with selective ER modulators such as tamoxifen inhibits bladder cancer cell proliferation in vitro. Herein, the chemoprotective potential of tamoxifen was evaluated in female mice exposed to the bladder-specific carcinogen, N-butyl-N-(4-hydroxybutyl) nitrosamine (BBN). Carcinogen treatment resulted in a 76% tumor incidence and increased mean bladder weights in comparison to controls. In contrast, mice receiving tamoxifen concurrent (8–20 weeks) or concurrent and subsequent (8–32 weeks) to BBN administration had no change in bladder weight and only 10% to 14% incidence of tumors. Non-muscle-invasive disease was present in animals treated with tamoxifen before (5–8 weeks) or after (20–32 weeks) BBN exposure, while incidence of muscle-invasive bladder carcinoma was reduced. ERβ was present in all mice and thus is a potential mediator of the tamoxifen chemoprotective effect. Surprisingly, ERα expression, which was detected in 74% of the mice exposed to BBN alone but not in any controlmice, was correlated with tumor incidence, indicating a possible role for this receptor in carcinogen-induced urothelial tumorigenesis. Thus, these data argue that both ERα and ERβ play a role in modulating carcinogen-induced bladder tumorigenesis. Administration of tamoxifen should be tested as a chemopreventive strategy for patients at high risk for bladder cancer recurrence

    PTHrP increases transcriptional activity of the integrin subunit α5

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    Increasing evidence is emerging highlighting the role of parathyroid hormone-related protein (PTHrP) during metastasis by regulating cell adhesion. The current study demonstrated that modulation of PTHrP expression by PTHrP overexpression and small interfering RNA-induced silencing resulted in changes in cell adhesion and integrin expression. RNA interference of endogenous PTHrP caused a significant reduction in cell adhesion of a breast cancer cell line to collagen type I, fibronectin and laminin (P<0.05) and of a colon cancer cell to collagen type I and fibronectin (P<0.05). Overexpression of PTHrP induced a significant increase in cell adhesion of colon (P<0.0001) and breast (P<0.05) cancer cells to the same extracellular matrix proteins. These PTHrP-mediated effects were attributed to changes in integrin expression as the differences in adhesion profile correlated with the integrin expression profile. In an attempt to elucidate the mechanism whereby PTHrP regulates integrin expression, promoter activity of the integrin α5 subunit was analysed and significant increases in transcriptional activity were observed in PTHrP overexpressing cells (P<0.0001), which was dependent on nuclear localisation. These results indicate that modulation of cell adhesion is a normal physiological action of PTHrP, mediated by increasing integrin gene transcription

    Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

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    Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat
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