Asociación entre dependencia funcional y calidad de vida en pacientes adultos mayores oncológicos / Association between functional dependence and quality of life in older adult oncology patients

RESUMEN Introducción: La presencia de comorbilidades modula el proceso de envejecimiento, el diagnóstico de cáncer puede comprometer de manera importante la salud del adulto mayor, lo cual repercute en su calidad de vida. Objetivo: Determinar la asociación entre la dependencia funcional y la calidad de vida en pacientes oncológicos adultos mayores tratados con radioterapia. Métodos: Estudio analítico retrospectivo, realizado en 181 pacientes ambulatorios del Centro Médico Naval del Callao, Perú, varones, mayores de 60 años. Se valoró la dependencia funcional mediante los índices de Barthel y el de Lawton; y la calidad de vida mediante la escala de calidad de vida en adultos mayores de la Organización Mundial de la Salud (WHOQoL-Old). Resultados: Se encontró asociación estadísticamente significativa entre dependencia funcional y calidad de vida, tanto para las actividades básicas de la vida diaria (PR= 1,04 [IC 95 %; 1,01-1,07]) como para las actividades instrumentales de la vida diaria (PR= 1,08 (IC 95 %: 1,01 - 1,13). Conclusiones: En los pacientes adultos mayores oncológicos tratados con radioterapia, se encuentra asociación significativa entre dependencia funcional y una pobre calidad de vida.

ABSTRACT Introduction: The presence of comorbidities modulates the aging process, the diagnosis of cancer can significantly compromise the health of the elderly, which affects their quality of life. Objective: Determine the association between the functional dependence and the quality of life in elderly oncology patients treated with radiotherapy. Methods: Retrospective analytical study, carried out in 181 outpatients of Centro Médico Naval del Callao, Perú, male, older than 60 years. The functional dependence was assessed with Barthel index and Lawton scale; and the quality of life was assessed with World Health Organization Quality of Life-Older Adults Module (WHOQoL-Old). Results: A statistically significant association was found between functional dependence and quality of life, for both the basic activities of daily living (PR= 1.04 [IC 95 %: 1.01-1.07]), and the instrumental activities of daily living (PR= 1.08 [IC 95 %: 1.01 - 1.13]). Conclusion: There was significant association between the functional dependence and the poor quality of life in the elderly oncology patients treated with radiotherapy.

Relation of cerebrospinal fluid/plasma HIV-RNA discordance with neurocognitive impairment.

Neurological involvement is common in patients infected with HIV. The effectiveness of antiretroviral drugs in lowering the levels of HIV-RNA in cerebrospinal fluid (CSF) is limited by their inability to cross the blood–brain barrier. Discordance in CSF/plasma HIV-RNA levels may have a bearing on the progression of neurological disease in these patients. We report a woman with subacute neurocognitive impairment and abnormal findings on brain MRI, in whom there was a discordance between CSF/plasma HIV-RNA levels. The patient improved after a change in her highly active antiretroviral therapy (HAART) regimen. We also reviewed the available literature on the subject and found seven articles describing 27 patients. Natl Med J India 2015;28:228–32

Genetic variation in the Cytb gene of human cerebral Taenia solium cysticerci recovered from clinically and radiologically heterogeneous patients with neurocysticercosis

Neurocysticercosis (NC) is a clinically and radiologically heterogeneous parasitic disease caused by the establishment of larval Taenia solium in the human central nervous system. Host and/or parasite variations may be related to this observed heterogeneity. Genetic differences between pig and human-derived T. solium cysticerci have been reported previously. In this study, 28 cysticerci were surgically removed from 12 human NC patients, the mitochondrial gene that encodes cytochrome b was amplified from the cysticerci and genetic variations that may be related to NC heterogeneity were characterised. Nine different haplotypes (Ht), which were clustered in four haplogroups (Hg), were identified. Hg 3 and 4 exhibited a tendency to associate with age and gender, respectively. However, no significant associations were found between NC heterogeneity and the different T. solium cysticerci Ht or Hg. Parasite variants obtained from patients with similar NC clinical or radiological features were genetically closer than those found in groups of patients with a different NC profile when using the Mantel test. Overall, this study establishes the presence of genetic differences in the Cytb gene of T. solium isolated from human cysticerci and suggests that parasite variation could contribute to NC heterogeneity. .

Actividad de la ATPasa Na+ y K+ en los eritrocitos de pacientes con choque séptico / Activity of Na+ and K+ ATPase in the red blood cells of patients with septic shock

Se decidió estudiar la actividad de la ATPasa de Na+ y K+ en los eritrocitos de 12 pacientes con choque séptico causado por sepsis abdominal grave. Se tomó como criterio de inclusión la presencia de hipotensión arterial sistólica, oliguria, consumo de oxígeno disminuido y lactacidemia por arriba de 2.7 mM/L. En las muestras de sangre se determinó la concentración de adenosin-5' -trifosfato (ATP), sodio (Na+) y potasio (K+) eritrocítico, así como la de Na+ y K+ y fosfato séricos. Los resultados obtenidos mostraron aumento de ATP, Na+ y K+ eritrocíticos con p < 0.001 al contrastarlos con 12 testigos normales. Se concluyó que en las etapas iniciales del estado de choque la actividad de la ATPasa de Na+ y K+ se encuentra invertida y genera la formación de ATP como reacción al flujo de cationes en favor de gradientes de concentración extremos. Las concentraciones aumentadas de Na+ intracelular se interpretaron como manifestaciones iniciales de disminución de la actividad de la ATPasa de Na+ y K+