RESUMEN
Guttiferones belong to the polyisoprenylated benzophenone, a class of compounds, a very restricted group of natural plant products, especially in the Clusiaceae family. They are commonly found in bark, stem, leaves, and fruits of plants of the genus Garcinia and Symphonia. Guttiferones have the following classifications according to their chemical structure: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, and T. All of them have received growing attention due to its multiple biological activities. This review provides a first comprehensive approach to plant sources, phytochemical profile, specific pharmacological effects, and mechanisms of guttiferones already described. Studies indicate a broad spectrum of pharmacological activities, such as: anti-inflammatory, immunomodulatory, antioxidant, antitumor, antiparasitic, antiviral, and antimicrobial. Despite the low toxicity of these compounds in healthy cells, there is a lack of studies in the literature related to toxicity in general. Given their beneficial effects, guttiferones are expected to be great potential drug candidates for treating cancer and infectious and transmissible diseases. However, further studies are needed to elucidate their toxicity, specific molecular mechanisms and targets, and to perform more in-depth pharmacokinetic studies. This review highlights chemical properties, biological characteristics, and mechanisms of action so far, offering a broad view of the subject and perspectives for the future of guttiferones in therapeutics.
Asunto(s)
Clusiaceae , Clusiaceae/química , Extractos Vegetales/farmacología , Fitoquímicos/farmacologíaRESUMEN
OBJECTIVE: To evaluate the impact of a novel nurse-led transition intervention program designed for young adolescents (age 13-14 years) with congenital heart disease (CHD). We hypothesized that the intervention would result in improved self-management skills and CHD knowledge. STUDY DESIGN: Single-center cluster randomized controlled trial of a nurse-led transition intervention vs usual care. The intervention group received a 1-hour individualized session with a cardiology nurse, focusing on CHD education and self-management. The primary end point was change in TRANSITION-Q (transition readiness) score between baseline and 6 months. The secondary end point was change in MyHeart score (CHD knowledge). RESULTS: We randomized 60 participants to intervention (n = 30) or usual care (n = 30). TRANSITION-Q score (range 0-100) increased from 49 ± 10 at baseline to 54 ± 9.0 at 6 months (intervention) vs 47 ± 14 to 44 ± 14 (usual care). Adjusted for baseline score, TRANSITION-Q scores at 1 and 6 months were greater in the intervention group (mean difference 5.9, 95% CI 1.3-10.5, P = .01). MyHeart score (range 0-100) increased from 48 ± 24 at baseline to 71 ± 16 at 6 months (intervention) vs 54 ± 24 to 57 ± 22 (usual care). Adjusted for baseline score, MyHeart scores at 1 and 6 months were greater in the intervention group (mean difference 19, 95% CI 12-26, P < .0001). Participants aged 14 years had a greater increase in TRANSITION-Q score at 6 months compared with 13-year-old participants (P < .05). CONCLUSIONS: A nurse-led program improved transition readiness and CHD knowledge among young adolescents. This simple intervention can be readily adopted in other healthcare settings. TRIAL REGISTRATION: ClinicalTrials.gov: NCT02374892.
Asunto(s)
Cardiopatías Congénitas , Transición a la Atención de Adultos/organización & administración , Adolescente , Femenino , Humanos , Masculino , Educación del Paciente como Asunto , AutomanejoRESUMEN
OBJECTIVES: To develop and validate a Pediatric Liver Transplantation Quality of Life (PeLTQL) questionnaire via an international multicenter collaboration. STUDY DESIGN: Item generation with 146 child and/or parent interviews (92 pediatric liver transplantation [LT] recipients) and 3 focus groups generated over 300 items. An item reduction questionnaire with 76 questions was completed by 320 participants (212 pediatric LT recipients). RESULTS: Frequency-importance product ranking, questionnaire formatting, and pre-testing resulted in a 26-item PeLTQL questionnaire. Factor analysis identified 3 domains: future health, coping and adjustment, and social-emotional. The validation phase was completed by 133 (46% male) LT recipients (aged 8-18 years). Internal consistency (Cronbach α = 0.86) and test-retest reliability (intraclass correlation coefficient = 0.85) were excellent. Mean patient PeLTQL score was 69.54 ± 13.06. Construct validity with validated tools identified significant correlations between mean PeLTQL scores and (1) Pediatric Quality of Life Inventory generic (r = 0.64, P < .001); (2) Pediatric Quality of Life Inventory transplant (r = 0.73, P < .001); and (3) Screen for Child Anxiety Related Disorders (r = -0.57, P < .001) scores. Only 17/3458 (0.5%) questions were left blank. A Flesch-Kincaid grade level of 5.4 was calculated as a measure of the PeLTQL readability statistic. CONCLUSIONS: The PeLTQL is a valid and reliable novel 26-item disease-specific health related quality of life instrument for LT recipients aged 8-18 years. Low PeLTQL scores can identify patients at risk for childhood anxiety and depression. The tool is now ready for broad use in both clinical practice and clinical interventional trials.
Asunto(s)
Trasplante de Hígado , Calidad de Vida , Encuestas y Cuestionarios , Adolescente , Niño , Preescolar , Femenino , Humanos , Lactante , MasculinoRESUMEN
OBJECTIVE: To establish how cause of death for live-born preterm infants (24-31 weeks gestation) has changed in a single large UK population over 2 decades. STUDY DESIGN: This was an interrogation of a population-based survey of >680, 000 live births (between 1988 and 2008) for deaths in the first postnatal year. We collected cause of death grouped into major etiologies: respiratory, infection, malformation, necrotizing enterocolitis (NEC), and other. Data were analyzed in three 7-year epochs and 2 gestational groups (<27 and 28-31 weeks). Numbers, rates per 1000 live births, and proportional contributions to each epoch were analyzed. RESULTS: A total of 1504 deaths occurred. The infants who died had a median gestational age of 26 weeks (IQR, 25-28 weeks) and a median birth weight of 880 g (IQR, 700-1170 g). The number of deaths decreased with each later epoch (from 671 to 473 and then to 360), as did the proportion of deaths from respiratory causes (64% to 62% and then to 49%). The proportion of deaths occurring after 40 weeks postmenstrual age remained stable across the 3 epochs (8.8%, 8%, and 8%). Deaths from infection and NEC increased with time (from 11% to 13% and then to 21%), as did median time to death (from 2.7 to 3.8 days). CONCLUSION: Infection and NEC are increasingly prevalent causes of death in preterm infants.
Asunto(s)
Enfermedades del Prematuro/mortalidad , Causas de Muerte/tendencias , Humanos , Recién Nacido , Recien Nacido Prematuro , Factores de Tiempo , Reino Unido/epidemiologíaRESUMEN
UNLABELLED: Levels of hypertension, obesity and raised total cholesterol are increasing in Mexico. Mexicans employed within sedentary occupations may be particularly at risk of developing one, or a clustering of these health-related risk factors, due to lack of participation in health enhancing physical activity (HEPA). The purpose of this study is to examine: (a) prevalence rates of hypertension, obesity and raised total cholesterol, and (b) the link between these variables and HEPA, in a sample of North Mexican, office-based employees. Methods include an assessment of systolic/diastolic blood pressure, % body fat, total cholesterol and HEPA (7-day self-report) in 47 men (33 +/- 10 years) and 43 women (28 +/- 7 years) from Monterrey, a large industrial city in the Northeast of Mexico. Values were compared against recognised health-related thresholds to determine prevalence rates of individual health-related risk factors, along with clustering of two or more risk factors. Relationships between variables were analysed using Pearson product moment correlation. The results show Men had a high prevalence of obesity (32%) and raised total cholesterol (44%), while women's rates were lower (7% and 10% respectively). More men (59%) than women (17%) demonstrated a clustering of two or more risk factors. HEPA participation was low in both men (9%) and women (16%). A significant relationship was found between men's HEPA and % body fat (r = -0.31; p < 0.05). CONCLUSIONS: The high levels of inactivity found in both men and women were cause for concern, suggesting the need for innovative intervention approaches, which aim to integrate physical activity into busy working lives.
Asunto(s)
Ejercicio Físico , Promoción de la Salud , Conducta de Reducción del Riesgo , Lugar de Trabajo , Adulto , Femenino , Humanos , Masculino , México , Persona de Mediana Edad , Encuestas y CuestionariosRESUMEN
Jamaica's public primary health care services are delivered by a system of health centers of varying levels of sophistication and through clinics of various kinds. The clinics are held according to a regular schedule, but the composition of the staff teams for conducting clinics varies considerably. To ensure best utilization of staff, a productivity study was sought by the Ministry of Health. The first part of the study described the current situation. Two indices of productivity were developed, using data collected by observation in a sample of health centers. The indices showed that there was much scope for improvement in productivity. In light of these findings and after discussion with senior health personnel, strategies for improvement in productivity were formulated. A model was constructed for clinic scheduling and deployment of staff, based on projection demand, clinic hours required, and necessary staff input. The strategy is to be tested and evaluated on a pilot scale. (AU)