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2.
J Med Internet Res ; 26: e46036, 2024 05 07.
Artículo en Inglés | MEDLINE | ID: mdl-38713909

RESUMEN

BACKGROUND: A plethora of weight management apps are available, but many individuals, especially those living with overweight and obesity, still struggle to achieve adequate weight loss. An emerging area in weight management is the support for one's self-regulation over momentary eating impulses. OBJECTIVE: This study aims to examine the feasibility and effectiveness of a novel artificial intelligence-assisted weight management app in improving eating behaviors in a Southeast Asian cohort. METHODS: A single-group pretest-posttest study was conducted. Participants completed the 1-week run-in period of a 12-week app-based weight management program called the Eating Trigger-Response Inhibition Program (eTRIP). This self-monitoring system was built upon 3 main components, namely, (1) chatbot-based check-ins on eating lapse triggers, (2) food-based computer vision image recognition (system built based on local food items), and (3) automated time-based nudges and meal stopwatch. At every mealtime, participants were prompted to take a picture of their food items, which were identified by a computer vision image recognition technology, thereby triggering a set of chatbot-initiated questions on eating triggers such as who the users were eating with. Paired 2-sided t tests were used to compare the differences in the psychobehavioral constructs before and after the 7-day program, including overeating habits, snacking habits, consideration of future consequences, self-regulation of eating behaviors, anxiety, depression, and physical activity. Qualitative feedback were analyzed by content analysis according to 4 steps, namely, decontextualization, recontextualization, categorization, and compilation. RESULTS: The mean age, self-reported BMI, and waist circumference of the participants were 31.25 (SD 9.98) years, 28.86 (SD 7.02) kg/m2, and 92.60 (SD 18.24) cm, respectively. There were significant improvements in all the 7 psychobehavioral constructs, except for anxiety. After adjusting for multiple comparisons, statistically significant improvements were found for overeating habits (mean -0.32, SD 1.16; P<.001), snacking habits (mean -0.22, SD 1.12; P<.002), self-regulation of eating behavior (mean 0.08, SD 0.49; P=.007), depression (mean -0.12, SD 0.74; P=.007), and physical activity (mean 1288.60, SD 3055.20 metabolic equivalent task-min/day; P<.001). Forty-one participants reported skipping at least 1 meal (ie, breakfast, lunch, or dinner), summing to 578 (67.1%) of the 862 meals skipped. Of the 230 participants, 80 (34.8%) provided textual feedback that indicated satisfactory user experience with eTRIP. Four themes emerged, namely, (1) becoming more mindful of self-monitoring, (2) personalized reminders with prompts and chatbot, (3) food logging with image recognition, and (4) engaging with a simple, easy, and appealing user interface. The attrition rate was 8.4% (21/251). CONCLUSIONS: eTRIP is a feasible and effective weight management program to be tested in a larger population for its effectiveness and sustainability as a personalized weight management program for people with overweight and obesity. TRIAL REGISTRATION: ClinicalTrials.gov NCT04833803; https://classic.clinicaltrials.gov/ct2/show/NCT04833803.


Asunto(s)
Inteligencia Artificial , Conducta Alimentaria , Aplicaciones Móviles , Humanos , Conducta Alimentaria/psicología , Adulto , Femenino , Masculino , Obesidad/psicología , Obesidad/terapia , Persona de Mediana Edad
3.
Public Health Nutr ; 25(9): 2426-2435, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35190011

RESUMEN

OBJECTIVE: To explore motivations, self-regulation barriers and strategies in a multi-ethnic Southeast Asian population with overweight and obesity. DESIGN: Qualitative design using semi-structured face-to-face and videoconferencing interviews. Data were analysed using thematic framework analysis and constant comparison method. SETTING: Specialist weight management clinic. PARTICIPANTS: Twenty-two participants were purposively sampled from 13 April to 30 April 2021. Median age and BMI of the participants were 37·5 (interquartile range (IQR) = 13·3) and 39·2 kg/m2 (IQR = 6·1), respectively. And 31·8 % were men, majority had a high intention to adopt healthy eating behaviours (median = 6·5; IQR = 4·8-6·3) and 59 % of the participants had a medium level of self-regulation. RESULTS: Six themes and fifteen subthemes were derived. Participants were motivated to lose weight by the sense of responsibility as the family's pillar of support and to feel 'normal' again. We coupled self-regulation barriers with corresponding strategies to come up with four broad themes: habitual overconsumption - mindful self-discipline; proximity and convenience of food available - mental tenacity; momentary lack of motivation and sense of control - motivational boosters; and overeating triggers - removing triggers. We highlighted six unique overeating triggers namely: trigger activities (e.g. using social media); eating with family, friends and colleagues; provision of food by someone; emotions (e.g. feeling bored at home, sad and stressed); physiological condition (e.g. premenstrual syndrome); and the time of the day. CONCLUSIONS: Future weight management interventions should consider encompassing participant-led weight loss planning, motivation boosters and self-regulation skills to cope with momentary overeating triggers.


Asunto(s)
Sobrepeso , Autocontrol , Femenino , Humanos , Hiperfagia , Masculino , Motivación , Obesidad , Sobrepeso/terapia , Investigación Cualitativa , Pérdida de Peso
4.
Cancer Cell Int ; 21(1): 230, 2021 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-33888130

RESUMEN

BACKGROUND: T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive disease with a high risk of induction failure and poor outcomes, with relapse due to drug resistance. Recent studies show that bromodomains and extra-terminal (BET) protein inhibitors are promising anti-cancer agents. ARV-825, comprising a BET inhibitor conjugated with cereblon ligand, was recently developed to attenuate the growth of multiple tumors in vitro and in vivo. However, the functional and molecular mechanisms of ARV-825 in T-ALL remain unclear. This study aimed to investigate the therapeutic efficacy and potential mechanism of ARV-825 in T-ALL. METHODS: Expression of the BRD4 were determined in pediatric T-ALL samples and differential gene expression after ARV-825 treatment was explored by RNA-seq and quantitative reverse transcription-polymerase chain reaction. T-ALL cell viability was measured by CCK8 assay after ARV-825 administration. Cell cycle was analyzed by propidium iodide (PI) staining and apoptosis was assessed by Annexin V/PI staining. BRD4, BRD3 and BRD2 proteins were detected by western blot in cells treated with ARV-825. The effect of ARV-825 on T-ALL cells was analyzed in vivo. The functional and molecular pathways involved in ARV-825 treatment of T-ALL were verified by western blot and chromatin immunoprecipitation (ChIP). RESULTS: BRD4 expression was higher in pediatric T-ALL samples compared with T-cells from healthy donors. High BRD4 expression indicated a poor outcome. ARV-825 suppressed cell proliferation in vitro by arresting the cell cycle and inducing apoptosis, with elevated poly-ADP ribose polymerase and cleaved caspase 3. BRD4, BRD3, and BRD2 were degraded in line with reduced cereblon expression in T-ALL cells. ARV-825 had a lower IC50 in T-ALL cells compared with JQ1, dBET1 and OTX015. ARV-825 perturbed the H3K27Ac-Myc pathway and reduced c-Myc protein levels in T-ALL cells according to RNA-seq and ChIP. In the T-ALL xenograft model, ARV-825 significantly reduced tumor growth and led to the dysregulation of Ki67 and cleaved caspase 3. Moreover, ARV-825 inhibited cell proliferation by depleting BET and c-Myc proteins in vitro and in vivo. CONCLUSIONS: BRD4 indicates a poor prognosis in T-ALL. The BRD4 degrader ARV-825 can effectively suppress the proliferation and promote apoptosis of T-ALL cells via BET protein depletion and c-Myc inhibition, thus providing a new strategy for the treatment of T-ALL.

5.
J Med Internet Res ; 23(11): e28185, 2021 11 16.
Artículo en Inglés | MEDLINE | ID: mdl-34783674

RESUMEN

BACKGROUND: Smartphone apps have shown potential in enhancing weight management in Western populations in the short to medium term. With a rapidly growing obesity burden in Asian populations, researchers are turning to apps as a service delivery platform to reach a larger target audience to efficiently address the problem. OBJECTIVE: This systematic review and meta-analysis aims to determine the efficacy of interventions that incorporate apps in facilitating weight loss and health behavior change in the Asian population. METHODS: A total of 6 databases were searched in June 2020. The eligible studies included controlled trials in which an app was used in the intervention. The participants were aged 18 years or older and were of Asian ethnicity. A meta-analysis to test intervention efficacy, subgroup analyses, and post hoc analyses was conducted to determine the effects of adding an app to usual care and study duration. The primary outcome was absolute or percentage weight change, whereas the secondary outcomes were changes to lifestyle behaviors. RESULTS: A total of 21 studies were included in this review, and 17 (81%) were selected for the meta-analysis. The pooled effect size across 82% (14/17) of the randomized controlled trials for weight change was small to moderate (Hedges g=-0.26; 95% CI -0.41 to -0.11), indicating slightly greater weight loss achieved in the intervention group; however, this may not be representative of long-term studies (lasting for more than a year). Supplementing multicomponent usual care with an app led to greater weight loss (Hedges g=-0.28; 95% CI -0.47 to -0.09). Asian apps were largely culturally adapted and multifunctional, with the most common app features being communication with health professionals and self-monitoring of behaviors and outcomes. CONCLUSIONS: More evidence is required to determine the efficacy of apps in the long term and address the low uptake of apps to maximize the potential of the intervention. Future research should determine the efficacy of each component of the multicomponent intervention to facilitate the designing of studies that are most effective and cost-efficient for weight management. TRIAL REGISTRATION: PROSPERO CRD42020165240; https://tinyurl.com/2db4tvn6.


Asunto(s)
Aplicaciones Móviles , Conductas Relacionadas con la Salud , Humanos , Estilo de Vida , Obesidad/terapia , Pérdida de Peso
6.
Am J Emerg Med ; 38(12): 2758.e1-2758.e4, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-32499176

RESUMEN

COVID-19 has spread worldwide, with more than 2.5 million cases and over 80,000 deaths reported by the end of April 2020. In addition to pulmonary symptoms, gastrointestinal symptoms have been increasingly recognized as part of the disease spectrum. COVID-19-associated coagulopathy has recently emerged as a major component of the disease, leading to high morbidity and mortality. Ischemic colitis has been reported to be associated with a hypercoagulable state. To our knowledge, there have not been any case reports of COVID-19 associated with ischemic colitis. Herein, we present the first case of a probable association of COVID-19 with ischemic colitis in a patient with a hypercoagulable state.


Asunto(s)
COVID-19/complicaciones , Colitis Isquémica/virología , Anciano , Trastornos de la Coagulación Sanguínea/virología , Comorbilidad , Resultado Fatal , Humanos , Masculino , Factores de Riesgo
7.
Appetite ; 148: 104555, 2020 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-31843684

RESUMEN

BACKGROUND: Many countries recommend parental involvement to enhance the effectiveness of healthy lifestyle interventions focusing on behavioural modifications that encourage weight management in children. Our study investigates to what extent the different constructs of the Theory of Planned Behaviour (TPB) are influencing healthy eating behaviour among mothers of pre-school and primary school children in Singapore. METHODS: A total of 716 mothers of pre-schoolers, 3-6 years old (N = 358) and primary school students, 7-12 years old (N = 358) were administered a survey to assess healthy eating behaviour using the TPB constructs. Bivariate correlations among TPB constructs were calculated and tested using Pearson's correlation. Multivariate generalized regression was performed to examine the associations between TPB constructs and healthy eating behaviour. RESULTS: More than 80% of children consumed less than the daily recommended servings of at least 1 glass of dairy,2 servings of fruit and 2 servings of vegetables per day advised by the Singapore Health Board. More primary school children consumed less dairy per day compared to pre-school children (48.9% vs 26.3%; p < 0.001). Primary school children's healthy eating behaviours were correlated with mother's perceived behavioural control (PBC) such as adequate discipline (ß = 0.40; p = 0.001), self-efficacy (ß = 0.35; p = 0.01) and a lower barrier that healthy food does not satisfy hunger (ß = -1.16; p < 0.001). Barriers that significantly reduced pre-school children's healthy food intake were lack of motivation among mothers (ß = -1.13; p < 0.001) and children (ß = -0.49; p = 0.02), lack of satiety (ß = -1.06; p = 0.02), difficulty in changing child's eating habits (ß = -0.58; p = 0.03), lack of family support (ß = -0.62; p = 0.03). CONCLUSIONS: Findings from this study provides a formative foundation for future research and exploration of plausible interventions around improving mother's PBC, self-efficacy and reducing barriers, which could increase mother's engagement in improving their children's healthy eating behaviours in Singapore.


Asunto(s)
Conducta Infantil , Dieta Saludable , Conducta Alimentaria , Conocimientos, Actitudes y Práctica en Salud , Relaciones Madre-Hijo , Madres , Adulto , Niño , Preescolar , Estudios Transversales , Cultura , Dieta , Familia , Femenino , Humanos , Hambre , Masculino , Persona de Mediana Edad , Madres/psicología , Motivación , Saciedad , Autoeficacia , Singapur , Encuestas y Cuestionarios
8.
Haematologica ; 104(6): 1209-1220, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30606790

RESUMEN

Proteolysis targeting chimeric molecule ARV 825 causes ubiquitination of bromodomains resulting in their efficient degradation by proteasome activity. Bromodomain degradation down-regulates MYC transcription contributing to growth inhibition of various human cancers. We examined the therapeutic potential of ARV 825 against multiple myeloma (MM) cells both in vitro and in vivo In a dose-dependent manner, ARV 825 inhibited proliferation of 13 human MM cell lines and three fresh patient samples, and was associated with cell cycle arrest and apoptosis. ARV 825 rapidly and efficiently degraded BRD 2 and BRD 4. Sensitivity of MM cells to ARV 825 was positively correlated with cereblon levels. RNA sequencing analysis showed important genes such as CCR1, RGS, MYB and MYC were down-regulated by ARV 825. A total of 170 small molecule inhibitors were screened for synergy with ARV 825. Combination of ARV 825 with inhibitor of either dual PI3K/mTOR, CRM1, VEGFR, PDGFRα/b, FLT3, IGF-1R, protein kinase C, CBP-EP300 or JAK1/2 showed synergistic activity. Importantly, ARV 825 significantly inhibited the growth of MM xenografts and improved mice survival. Taken together, our results, in conjunction with recently published findings, provide a rationale for investigating the efficacy of ARV 825 for MM, use of cereblon as a biomarker for therapy of MM patients, and the combination of ARV 825 with small molecule inhibitors to improve the outcome of MM patients.


Asunto(s)
Antineoplásicos/farmacología , Biomarcadores de Tumor , Terapia Molecular Dirigida , Mieloma Múltiple/metabolismo , Animales , Antineoplásicos/química , Antineoplásicos/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Apoptosis/efectos de los fármacos , Azepinas/farmacología , Azepinas/uso terapéutico , Puntos de Control del Ciclo Celular/efectos de los fármacos , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Modelos Animales de Enfermedad , Perfilación de la Expresión Génica , Humanos , Factor de Transcripción Ikaros/metabolismo , Ratones , Mieloma Múltiple/etiología , Mieloma Múltiple/patología , Mieloma Múltiple/terapia , Proteolisis/efectos de los fármacos , Talidomida/análogos & derivados , Talidomida/farmacología , Talidomida/uso terapéutico , Ensayos Antitumor por Modelo de Xenoinjerto
9.
BMC Public Health ; 19(1): 1287, 2019 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-31615456

RESUMEN

BACKGROUND: Gestational diabetes (GDM) is a known risk factor for type 2 diabetes mellitus (T2DM), and women with a history of GDM have a 7-fold increased risk of developing the disease. Achieving a healthy weight post-delivery is key in reducing the risk of future diabetes in these women. The aim of this trial is to investigate the use of an interactive smartphone application (APP) to restore women to optimal weight following delivery. METHODS: This will be an open-label randomized controlled trial. Two hundred women with gestational diabetes will be randomized to receive the intervention or standard care following delivery. Participants will be reviewed at 6 weeks and 4 months post-delivery. The intervention is an APP serving as a platform for weight, diet and physical activity tracking. The APP provides 3-5 min educational videos suggesting suitable lifestyle adjustments relevant to postnatal period such as breast feeding, diet and exercise. Lastly, the APP will allow real-time interaction between users and the team of dietitians, physiotherapists and occupational therapists to encourage restoration of optimal weight. Women in the control arm will be informed about the increased risk of developing T2DM and advised to maintain a healthy weight. Primary outcome measure is the restoration of participants' booking weight if booking BMI ≤ 23, or weight loss of at least 5% from booking weight if booking BMI > 23 over the 4 month period. Secondary outcome measures will assess serum metabolic and inflammatory markers, quality of life via questionnaires and cost-effectiveness of the intervention at each follow-up visit. DISCUSSION: This will be the first randomised controlled trial investigating the use of a smartphone application for postpartum weight loss in women with gestational diabetes. The major ethnic groups in our study population represent the majority of ethnic groups in Asia, amongst which the prevalence of diabetes is high. If shown to be effective, this APP may be used in wider clinical settings to improve postpartum weight loss and reduce the risk of developing T2DM in these women. TRIAL REGISTRATION: This study was registered on clintrials.gov on the 30th of October 2017, under the trial registration number: NCT03324737 .


Asunto(s)
Diabetes Mellitus Tipo 2/prevención & control , Diabetes Gestacional/epidemiología , Aplicaciones Móviles , Teléfono Inteligente , Programas de Reducción de Peso/métodos , Adulto , Protocolos Clínicos , Femenino , Humanos , Embarazo , Singapur/epidemiología
10.
Haematologica ; 103(12): 1980-1990, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30093396

RESUMEN

Chromosomal translocation t(8;21)(q22;q22) which leads to the generation of oncogenic RUNX1-RUNX1T1 (AML1-ETO) fusion is observed in approximately 10% of acute myelogenous leukemia (AML). To identify somatic mutations that co-operate with t(8;21)-driven leukemia, we performed whole and targeted exome sequencing of an Asian cohort at diagnosis and relapse. We identified high frequency of truncating alterations in ASXL2 along with recurrent mutations of KIT, TET2, MGA, FLT3, and DHX15 in this subtype of AML. To investigate in depth the role of ASXL2 in normal hematopoiesis, we utilized a mouse model of ASXL2 deficiency. Loss of ASXL2 caused progressive hematopoietic defects characterized by myeloid hyperplasia, splenomegaly, extramedullary hematopoiesis, and poor reconstitution ability in transplantation models. Parallel analyses of young and >1-year old Asxl2-deficient mice revealed age-dependent perturbations affecting, not only myeloid and erythroid differentiation, but also maturation of lymphoid cells. Overall, these findings establish a critical role for ASXL2 in maintaining steady state hematopoiesis, and provide insights into how its loss primes the expansion of myeloid cells.


Asunto(s)
Diferenciación Celular/genética , Proliferación Celular/genética , Hematopoyesis/genética , Células Mieloides/metabolismo , Proteínas Represoras/genética , Enfermedad Aguda , Animales , Perfilación de la Expresión Génica/métodos , Humanos , Leucemia Mieloide/genética , Leucemia Mieloide/patología , Ratones de la Cepa 129 , Ratones Endogámicos C57BL , Ratones Noqueados , Mielopoyesis/genética
11.
J Pathol ; 235(4): 559-70, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25404354

RESUMEN

We investigated the oncogenic role of SETDB1, focusing on non-small cell lung cancer (NSCLC), which has high expression of this protein. A total of 387 lung cancer cases were examined by immunohistochemistry; 72% of NSCLC samples were positive for SETDB1 staining, compared to 46% samples of normal bronchial epithelium (106 cases) (p <0.0001). The percentage of positive cells and the intensity of staining increased significantly with increased grade of disease. Forced expression of SETDB1 in NSCLC cell lines enhanced their clonogenic growth in vitro and markedly increased tumour size in a murine xenograft model, while silencing (shRNA) SETDB1 in NSCLC cells slowed their proliferation. SETDB1 positively stimulated activity of the WNT-ß-catenin pathway and diminished P53 expression, resulting in enhanced NSCLC growth in vitro and in vivo. Our finding suggests that therapeutic targeting of SETDB1 may benefit patients whose tumours express high levels of SETDB1.


Asunto(s)
Biomarcadores de Tumor/metabolismo , Carcinoma de Pulmón de Células no Pequeñas/enzimología , Neoplasias Pulmonares/enzimología , Proteína Metiltransferasas/metabolismo , Vía de Señalización Wnt , Animales , Biomarcadores de Tumor/genética , Carcinoma de Pulmón de Células no Pequeñas/genética , Carcinoma de Pulmón de Células no Pequeñas/patología , Proliferación Celular , Regulación Neoplásica de la Expresión Génica , Células HCT116 , N-Metiltransferasa de Histona-Lisina , Humanos , Inmunohistoquímica , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patología , Ratones Desnudos , Clasificación del Tumor , Trasplante de Neoplasias , Proteína Metiltransferasas/genética , Interferencia de ARN , Factores de Tiempo , Transfección , Carga Tumoral , Proteína p53 Supresora de Tumor/genética , Proteína p53 Supresora de Tumor/metabolismo , Vía de Señalización Wnt/genética
12.
Support Care Cancer ; 24(1): 469-480, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26404858

RESUMEN

PURPOSE: Malnutrition is a very common problem in oncology patients and is associated with many negative consequences including poorer prognosis, quality of life and survival. However, malnutrition in oncology patients is often overlooked although there is growing evidence showing that it can be prevented or reduced through nutrition intervention. This paper aims to provide an updated review on the effectiveness of different nutrition intervention approaches on nutrition status outcomes in oncology patients. METHODS: Randomised controlled trials (RCTs) published between 1994 and 2014 which examined the effects of nutrition intervention approaches--in particular, nutrition counselling (NC), oral nutrition supplements (ONS) and tube feeding (TF)--on nutrition status outcomes of oncology patients were identified and reviewed. RESULTS: Thirteen papers from 11 RCTs with a total of 1077 participants were included. The intervention approaches included NC (four studies), NC + ONS (five studies), ONS (three studies) and TF (three studies). The various results suggest that NC with or without ONS was associated with consistent improvements in several nutrition status outcomes. On the other hand, ONS and TF were associated with inconsistent improvements in few aspects of nutrition status outcomes. CONCLUSIONS: The referral of oncology patients for NC is recommended given the strong evidence of its beneficial effects on the prevention and reduction of malnutrition. Other forms of nutrition support including ONS and TF may then be included if deemed suitable and necessary for the individual.


Asunto(s)
Desnutrición/prevención & control , Neoplasias/complicaciones , Apoyo Nutricional , Consejo , Suplementos Dietéticos , Nutrición Enteral/métodos , Humanos , Desnutrición/etiología , Persona de Mediana Edad , Calidad de Vida
13.
J Sci Food Agric ; 95(6): 1143-56, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25130895

RESUMEN

Vermicomposting is a process in which earthworms are used to convert organic materials into humus-like material known as vermicompost. A number of researchers throughout the world have found that the nutrient profile in vermicompost is generally higher than traditional compost. In fact, vermicompost can enhance soil fertility physically, chemically and biologically. Physically, vermicompost-treated soil has better aeration, porosity, bulk density and water retention. Chemical properties such as pH, electrical conductivity and organic matter content are also improved for better crop yield. Nevertheless, enhanced plant growth could not be satisfactorily explained by improvements in the nutrient content of the soil, which means that other plant growth-influencing materials are available in vermicomposts. Although vermicomposts have been shown to improve plant growth significantly, the application of vermicomposts at high concentrations could impede growth due to the high concentrations of soluble salts available in vermicomposts. Therefore, vermicomposts should be applied at moderate concentrations in order to obtain maximum plant yield. This review paper discusses in detail the effects of vermicompost on soil fertility physically, chemically and biologically. Future prospects and economy on the use of organic fertilizers in the agricultural sector are also examined.


Asunto(s)
Productos Agrícolas/crecimiento & desarrollo , Fertilizantes , Oligoquetos , Agricultura Orgánica/métodos , Suelo , Animales , Biomasa , Estiércol , Agricultura Orgánica/economía , Suelo/química
14.
Jt Comm J Qual Patient Saf ; 40(4): 178-86, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24864526

RESUMEN

BACKGROUND: Nutrition screening identifies patients at risk of malnutrition to facilitate early nutritional intervention, yet incompletion and error rates of 30%-90% have been reported for commonly used screening tools. The effect of a series of quality improvement initiatives in improving the referral process and the overall performance of the 3-Minute Nutrition Screening (3-MinNS) tool was assessed for patients at National University Hospital (Singapore) at risk for malnutrition. METHODS: Annual audits were carried out from 2008 through 2013 on 4,467 patients. Performance gaps were identified and addressed through interventions, including (1) implementing a nutrition screening protocol, (2) nutrition screening training, (3) nurse empowerment for online dietetics referral of at-risk cases, (4) a closed-loop feedback system, and (5) removing a component of 3-MinNS that caused the most errors without compromising its sensitivity and specificity. RESULTS: Nutrition screening error rates were 33% and 31%, with 5% and 8% blank or missing forms, in 2008 and 2009, respectively. For patients at risk of malnutrition, referral to dietetics took up to 7.5 days, with 10% not referred at all. After the interventions, nonreferrals decreased to 7% (2010), 4% (2011), and 3% (2012 and 2013), and the mean turnaround time from screening to referral was reduced significantly from 4.3 +/- 1.8 days to 0.3 +/- 0.4 days (p < .001). Error rates were reduced to 25% (2010), 15% (2011), 7% (2012), and 5% (2013), and the percentage of blank or missing forms was reduced to and remained at 1%. CONCLUSION: Quality improvement initiatives were effective in reducing the incompletion and error rates of nutrition screening and led to sustainable improvements in the referral process of patients at nutritional risk.


Asunto(s)
Administración Hospitalaria/normas , Desnutrición/diagnóstico , Tamizaje Masivo/organización & administración , Evaluación Nutricional , Mejoramiento de la Calidad/organización & administración , Protocolos Clínicos , Humanos , Capacitación en Servicio , Tamizaje Masivo/normas , Errores Médicos/prevención & control
15.
BMC Complement Altern Med ; 14: 439, 2014 Nov 08.
Artículo en Inglés | MEDLINE | ID: mdl-25380692

RESUMEN

BACKGROUND: The increasing resistance of Candida yeasts towards antifungal compounds and the limited choice of therapeutic drugs have spurred great interest amongst the scientific community to search for alternative anti-Candida compounds. Mycocins and fungal metabolites have been reported to have the potential for treatment of fungal infections. In this study, the growth inhibition of Candida species by a mycocin produced by Wickerhamomyces anomalus and a lactone compound from Aureobasidium pullulans were investigated. METHODS: Mycocin was purified from the culture supernatant of an environmental isolate of W. anomalus using Sephadex G-75 gel filtration column chromatography. The mycocin preparation was subjected to SDS-PAGE analysis followed by MALDI TOF/TOF mass spectrometry analysis. The thermal and temperature stability of the mycocin were determined. The glucanase activity of the mycocin was investigated by substrate staining of the mycocin with 4-methyl-umbelliferyl-ß-D-glucoside (MUG). Gas chromatography mass spectrometry (GCMS) analysis was used to identify anti-Candida metabolite in the culture supernatant of an environmental isolate of Aureobasidium pullulans. The inhibitory effects of the anti-Candida compound against planktonic and biofilm cultures of various Candida species were determined using broth microdilution and biofilm quantitation methods. RESULTS: A mycocin active against Candida mesorugosa but not C. albicans, C. parapsilosis and C. krusei was isolated from the culture supernatant of W. anomalus in this study. The mycocin, identified as exo-ß-1,3 glucanase by MALDI TOF/TOF mass spectrometry, was stable at pH 3-6 and temperature ranging from 4-37°C. The glucanase activity of the mycocin was confirmed by substrate staining with MUG. 5-hydroxy-2-decenoic acid lactone (HDCL) was identified from the culture supernatant of A. pullulans. Using a commercial source of HDCL, the planktonic and biofilm MICs of HDCL against various Candida species were determined in this study. CONCLUSIONS: W. anomalus mycocin demonstrated a narrow spectrum of activity targeting only against C. mesorugosa, while HDCL demonstrated a broad spectrum of inhibitory action against multiple Candida species. The growth inhibition of W. anomalus mycocin and the lactone compound from A. pullulans against Candida yeasts should be further explored for therapeutic potentials against candidiasis.


Asunto(s)
Antifúngicos/farmacología , Ascomicetos/química , Productos Biológicos/farmacología , Candida/efectos de los fármacos , Ácidos Grasos Monoinsaturados/farmacología , Lactonas/farmacología , Micotoxinas/farmacología , Antifúngicos/aislamiento & purificación , Biopelículas/efectos de los fármacos , Productos Biológicos/aislamiento & purificación , Candida/crecimiento & desarrollo , Ácidos Grasos Monoinsaturados/aislamiento & purificación , Humanos , Lactonas/aislamiento & purificación , Pruebas de Sensibilidad Microbiana , Micotoxinas/aislamiento & purificación , Especificidad de la Especie
16.
J Acad Nutr Diet ; 124(3): 358-371, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-37820787

RESUMEN

BACKGROUND: Mobile health applications (mHealth apps) are increasingly being used in weight loss interventions. However, evidence on the effects of such interventions on diet quality and their correlation with weight loss is lacking. OBJECTIVE: The objective of this study was to examine whether changes in the diet quality of adults with prediabetes followed the use of an mHealth-enabled lifestyle intervention, compared with those who did not, and whether these changes correlated with weight loss. DESIGN: A secondary analysis of a 6-month randomized controlled trial Diabetes Lifestyle Intervention using Technology Empowerment (D'LITE) was conducted, with participants recruited from October 2017 to September 2019. PARTICIPANTS/SETTING: Community-dwelling adults (n = 148) in Singapore diagnosed with prediabetes and body mass index (BMI) ≥23 were included in this study. INTERVENTION: Participants were randomized to receive either a 6-month mHealth-enabled lifestyle intervention program (diet and physical activity) or standard care dietary advice. MAIN OUTCOME MEASURES: Dietary data were collected in the form of 2-day food records at baseline, 3, and 6 months. Changes in Alternate Healthy Eating Index-2010 (AHEI-2010) scores and food groups (servings/day), calculated from the dietary data, and correlation between changes in AHEI-2010 and weight loss at 3 and 6 months, were examined. STATISTICAL ANALYSES: Between-group comparisons of continuous variables and within-participants variation were performed using longitudinal mixed-effect models, intention-to-treat principles. The models included treatment groups, time (baseline, 3 months, and 6 months), and covariates (age, sex, and BMI), as well as the group × time interactions, as fixed variables and within-participant variation in outcome values as random variable. The random intercept for participants accounted for the dependence of repeated measures. A likelihood ratio test was also conducted to test random effect variance. Spearman correlation test was used to examine correlation between changes in AHEI-2010 scores and weight loss. RESULTS: There was a significant improvement in overall diet quality as ascertained by the AHEI-2010, by 6.2 points (95% confidence interval [CI], 3.8-8.7; P < 0.001) in the intervention group as compared with the control. The participants in the intervention group had a significantly greater reduction in intake of sugar-sweetened beverages (SSB) by 0.5 servings/day (95% CI, -0.8, -0.2; P < 0.001) and sodium by 726 mg/day (95% CI, -983, -468; P < .001), compared with those receiving standard care. At 3 and 6 months, a significant decrease in SSB (0.8 servings/day; 0.7 servings/day, respectively) and sodium (297 mg/day; 296 mg/day, respectively) intakes were reported compared with baseline intakes. Small positive correlations (r = 0.2; P < 0.05) were observed between changes in AHEI-2010 scores from baseline and percentage weight loss at 3 and 6 months. CONCLUSION: For adults with prediabetes in Singapore, diet quality can be improved with an mHealth-enabled lifestyle intervention program. A small positive correlation exists between AHEI-2010 scores and weight loss.


Asunto(s)
Aplicaciones Móviles , Estado Prediabético , Adulto , Humanos , Estado Prediabético/terapia , Dieta , Estilo de Vida , Pérdida de Peso , Sodio
17.
Endocrinol Diabetes Metab ; 7(3): e00485, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38685702

RESUMEN

BACKGROUND: The prevalence and healthcare cost of metabolic dysfunction-associated steatotic liver disease (MASLD) has increased alongside the epidemic surge in obesity and Type 2 diabetes. Weight loss through lifestyle modification remains the primary effective therapy for MASLD. Incorporation of mobile technology in lifestyle interventions has been previously found to be efficacious and cost-effective in facilitating weight loss. However, there is a paucity of studies that have successfully translated lifestyle research into clinical service for weight loss to alleviate disease burden. Our study aimed to describe the process of translating a mobile technology-enabled trial into a tertiary hospital outpatient dietetics service for patients with MASLD. METHODS: The Iowa Model of Evidence-Based Practice to Improve Quality Care was used as a framework for this paper to guide implementation at the organizational level. RESULTS: Regular engagement of key operational staff and the hospital management team facilitated open discussions of the challenges faced and enabled rapid implementation of strategies that contributed to the smooth piloting of the service. A service adoption rate of 81% was achieved. Preliminary outcome evaluation found that the percentage of patients achieving ≥ 5% weight loss from baseline at 6 months was comparable at 54% and 52% for the service and trial groups, respectively. CONCLUSIONS: Evaluation of the implementation process found that a hybrid model of care (in-person consultation supplemented with app coaching) preserved interpersonal connections while maximizing the convenience and scalability of mobile app-enabled service. Although high digital acceptance and adoption rates propelled by COVID-19-supported telehealth, it is prudent to assess patient's access to technology and digital literacy and offer resources to help them benefit from telehealth services.


Asunto(s)
Telemedicina , Pérdida de Peso , Humanos , Telemedicina/métodos , Masculino , Femenino , Persona de Mediana Edad , COVID-19 , Investigación Biomédica Traslacional , Programas de Reducción de Peso/métodos , Enfermedad del Hígado Graso no Alcohólico/terapia , Enfermedad del Hígado Graso no Alcohólico/etiología , Aplicaciones Móviles , Obesidad/terapia , Obesidad/complicaciones
18.
Sci Rep ; 14(1): 9855, 2024 04 29.
Artículo en Inglés | MEDLINE | ID: mdl-38684759

RESUMEN

Gut microbiome dysbiosis contributes to the pathophysiology of both gestational diabetes mellitus (GDM) and its associated adverse outcomes in the woman and offspring. Even though GDM prevalence, complications, and outcomes vary among different ethnic groups, limited information is available about the influence of ethnicity on gut microbiome dysbiosis in pregnancies complicated by GDM. This pilot prospective cohort study examined the impact of ethnicity on gut dysbiosis in GDM among three Asian ethnic groups (Chinese, Malay, Indian) living in Singapore, and investigated the potential modulatory roles of diet and lifestyle modifications on gut microbiome post-GDM diagnosis. Women with GDM (n = 53) and without GDM (n = 16) were recruited. Fecal samples were collected at 24-28- and 36-40-weeks' gestation and analyzed by targeted 16S rRNA gene-based amplicon sequencing. Permutational multivariate analysis of variance (PERMANOVA) analysis was performed to evaluate differences between groups. Differentially abundant taxa were identified by DeSeq2 based analysis. Functional prediction was performed using the phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt2). Among women with GDM, gut microbiome from different ethnicities harbored common microbial features. However, among those without GDM, there was contrasting microbiome composition between ethnic groups. Microbial members such as Collinsella, Blautia, Ruminococcus, Ruminococcus gnavus, Ruminococcus torques, and Eubacterium hallii groups were differentially enriched (p < 0.05) in women with GDM compared to those without. Among women with GDM, no differences in alpha- and beta- diversity were observed when comparing 24-28 weeks' samples with 36-40 weeks' samples, a period covering intense dietary and lifestyle modification, suggesting an inability to modulate gut microbiota through classic GDM management. Women with GDM have a distinct gut microbiome profile which harbours common features across different Asian ethnic groups, consistent with the notion that specific microbes are involved in the pathogenesis of insulin resistance, pro-inflammatory conditions, and other metabolic dysregulation known to be present in GDM.


Asunto(s)
Diabetes Gestacional , Disbiosis , Microbioma Gastrointestinal , Humanos , Femenino , Embarazo , Diabetes Gestacional/microbiología , Disbiosis/microbiología , Proyectos Piloto , Adulto , Singapur/epidemiología , Estudios Prospectivos , Pueblo Asiatico , ARN Ribosómico 16S/genética , Dieta , Etnicidad , Heces/microbiología , Bacterias/clasificación , Bacterias/genética , Bacterias/aislamiento & purificación
19.
Nutrients ; 15(15)2023 Aug 04.
Artículo en Inglés | MEDLINE | ID: mdl-37571385

RESUMEN

There is a lack of data on the adequacy of nutrient intake and prevalence of malnutrition risk in Asian populations. The aim was to report on the nutrient intake and prevalence of malnutrition risk in a community sample of older adults in Singapore. Analysis was performed on 738 (n = 206 male, n = 532 male, aged 67.6 ± 6.0 years) adults 60 years and above. Intakes of macro- and micronutrients were evaluated against the Recommended Dietary Allowances (RDAs). Malnutrition risk was assessed using the Nutrition Screening Initiative Determine Your Nutritional Health checklist. It was found that 90.5% older adults exceeded the sugar intake, 68.5% males and 57.1% females exceeded the intake limit for saturated fat, and 33% males had inadequate dietary fiber intake when compared to the RDAs. Inadequate dietary calcium intake was found in 49.5% males and 55.3% females. There were 22.3% of older adults at moderate to high malnutrition risk. Singaporean older adults need to reduce their dietary intakes of sugar and saturated fat and increase their intakes in dietary fiber and calcium. Current findings provide public health awareness on the importance of healthy eating and will facilitate decision making by health promotors to deliver targeted nutrition care programs.


Asunto(s)
Envejecimiento Saludable , Desnutrición , Femenino , Humanos , Masculino , Anciano , Estudios de Cohortes , Dieta , Ingestión de Energía , Desnutrición/epidemiología , Ingestión de Alimentos , Fibras de la Dieta , Micronutrientes , Ácidos Grasos , Azúcares
20.
J Alzheimers Dis ; 94(2): 441-456, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37248908

RESUMEN

BACKGROUND: The current lack of effective drug therapies for Alzheimer's disease (AD) has prompted researchers to seek alternative nutritional therapies, such as medium chain triglycerides (MCTs). However, results are inconclusive. OBJECTIVE: This systematic review and meta-analysis aims to summarize current evidence on the effect of MCT on cognitive function in patients with mild cognitive impairment (MCI) or AD. METHODS: A systematic search was conducted up until December 16, 2022, to identify human interventions reporting the effects of MCT on cognitive functioning of MCI or AD patients. 995 non-duplicated publications were identified, of which nine (n = 10 studies) met the inclusion criteria. RESULTS: Meta-analysis showed cognitive improvements in general (SMD = 0.64; 95% CI [0.05, 1.24]), but not in memory, language, and attention domains after oral MCT administration, compared to placebo. The effect of MCT was greater among APOEɛ4 (-) subjects than APOEɛ4 (+) subjects (SMD = 1.87; 95% CI [0.35, 3.40]). CONCLUSION: This review provides some evidence that treatment with MCT could improve general cognitive function in APOEɛ4 (-) cognitive impaired patients. Better characterized clinical studies are warranted before making a definitive conclusion on the use of MCT for MCI and AD management.


Asunto(s)
Enfermedad de Alzheimer , Disfunción Cognitiva , Humanos , Enfermedad de Alzheimer/tratamiento farmacológico , Disfunción Cognitiva/tratamiento farmacológico , Cognición , Triglicéridos/uso terapéutico
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