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1.
BMC Public Health ; 24(1): 1743, 2024 Jun 29.
Artículo en Inglés | MEDLINE | ID: mdl-38951859

RESUMEN

BACKGROUND AND OBJECTIVE: Weight stigma has negative consequences for both physiological and psychological health. Studies on weight stigma in adolescence, particularly from general populations, are scarce in the Mediterranean area. The main aim of this study is to describe the prevalence of experienced and internalized weight stigma among a representative sample of adolescents from the Spanish city of Terrassa, and to determine its association with sociodemographic variables and weight status. METHODS: Drawing on data from the initial assessment of a longitudinally funded project on weight stigma in adolescents, a cross-sectional survey-based study was conducted using random multistage cluster sampling. Weight stigma experiences, their frequency and sources, and weight bias internalization with the Modified Weight Bias Internalization Scale (WBISM) were assessed in a sample of 1016 adolescents. Adjusted odds ratios (AOR) between sociodemographic variables, weight status and having experienced weight stigma, and having reported high scores of WBISM (WBISM ≥ 4) were estimated by multiple logistic regression models. RESULTS: The prevalence of weight-related stigma experiences was 43.2% in the sample (81.8 in adolescents with obesity) and the prevalence of high levels of weight bias internalization was 19.4% (50.7 in adolescents with obesity). Other kids and school were the most prevalent sources of weight stigma, with society and family being other significant sources of stigma reported by girls. A significantly higher risk of having experienced weight stigma was observed in girls (AOR = 2.6) and in older adolescents (AOR = 1.9). Compared to normal weight adolescents, all weight statuses showed higher risk, being 3.4 times higher in adolescents with underweight and reaching 11.4 times higher risk in those with obesity. Regarding high levels of weight bias internalization, girls had a risk 6.6 times higher than boys. Once again, a "J-shaped" pattern was observed, with a higher risk at the lowest and highest weight statuses. The risk was 6.3 times higher in adolescents with underweight, and 13.1 times higher in adolescents with obesity compared to those with normal weight. CONCLUSIONS: Considering the high prevalence of experienced and internalized weight stigma among adolescents in Spain, especially in adolescents with obesity and girls, it seems important to implement preventive strategies in different settings and address all sources of stigma.


Asunto(s)
Estigma Social , Humanos , Adolescente , Femenino , Masculino , España/epidemiología , Estudios Transversales , Prevalencia , Peso Corporal , Obesidad/epidemiología , Obesidad/psicología
2.
J Med Internet Res ; 26: e51558, 2024 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-38578667

RESUMEN

BACKGROUND: Virtual reality (VR) interventions, based on cognitive behavioral therapy principles, have been proven effective as complementary tools in managing obesity and have been associated with promoting healthy behaviors and addressing body image concerns. However, they have not fully addressed certain underlying causes of obesity, such as a lack of motivation to change, low self-efficacy, and the impact of weight stigma interiorization, which often impede treatment adherence and long-term lifestyle habit changes. To tackle these concerns, this study introduces the VR self-counseling paradigm, which incorporates embodiment and body-swapping techniques, along with motivational strategies, to help people living with obesity effectively address some of the root causes of their condition. OBJECTIVE: This study aims to assess the clinical efficacy of ConVRself (Virtual Reality self-talk), a VR platform that allows participants to engage in motivational self-conversations. METHODS: A randomized controlled trial was conducted with 68 participants from the bariatric surgery waiting list from the obesity unit of the Vall d'Hebron University Hospital in Barcelona, Spain. Participants were assigned to 1 of 3 groups: a control group (CG), which only received treatment as usual from the obesity unit; experimental group 1 (EG1), which, after intensive motivational interviewing training, engaged in 4 sessions of VR-based self-conversations with ConVRself, and underwent embodiment and body-swapping techniques; and experimental group 2 (EG2), which engaged in 4 VR-based sessions led by a virtual counselor with a prerecorded discourse, and only underwent the embodiment technique. In the case of both EG1 and EG2, the VR interventions were assisted by a clinical researcher. Readiness to change habits, eating habits, and psychological variables, as well as adherence and satisfaction with ConVRself were measured at baseline, after the intervention, 1 week after the intervention, and 4 weeks after the intervention. RESULTS: Regarding the primary outcomes, EG1 (24/68, 35%) and EG2 (22/68, 32%) showed significant improvements in confidence to lose weight compared to the CG (22/68, 32%) at all assessment points (ß=-.16; P=.02). Similarly, EG1 demonstrated a significant increase after the intervention in readiness to exercise more compared to the CG (ß=-.17; P=.03). Regarding the secondary outcomes, EG1 participants showed a significant reduction in uncontrolled eating (ß=.71; P=.01) and emotional eating (ß=.29; P=.03) compared to the CG participants, as well as in their anxiety levels compared to EG2 and CG participants (ß=.65; P=.01). In addition, participants from the experimental groups reported high adherence and satisfaction with the VR platform (EG1: mean 59.82, SD 4.00; EG2: mean 58.43, SD 5.22; d=0.30, 95% CI -0.30 to 0.89). CONCLUSIONS: This study revealed that using VR self-conversations, based on motivational interviewing principles, may have benefits in helping people with obesity to enhance their readiness to change habits and self-efficacy, as well as reduce dysfunctional eating behaviors and anxiety. TRIAL REGISTRATION: ClinicalTrials.gov NCT05094557; https://www.clinicaltrials.gov/study/NCT05094557.


Asunto(s)
Terapia Cognitivo-Conductual , Realidad Virtual , Humanos , Terapia Cognitivo-Conductual/métodos , Estilo de Vida , Obesidad/terapia , Resultado del Tratamiento
3.
Int J Eat Disord ; 53(7): 1120-1131, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32383503

RESUMEN

OBJECTIVE: The current multicentre randomized controlled trial assessed the clinical efficacy of a combined mHealth intervention for eating disorders (EDs) based on cognitive behavioral therapy (CBT). METHOD: A total of 106 ED patients from eight different public and private mental health services in Spain were randomly assigned to two parallel groups. Patients of the experimental group (N = 53) received standard face-to-face CBT plus a mobile intervention through an application called "TCApp," which provides self-monitoring and an online chat with the therapist. The control group (N = 53) received standard face-to-face CBT only. Patients completed self-report questionnaires on ED symptomatology, anxiety, depression, and quality of life, before and after treatment. RESULTS: Significant reductions in primary and secondary outcomes were observed for participants of both groups, with no differences between groups. Results also suggested that the frequency with which patients attended their referral mental health institution after the intervention was lower for patients in the experimental group than for those in the control group. DISCUSSION: The current study showed that CBT can help to reduce symptoms relating to ED, regardless of whether its delivery includes online components in addition to traditional face-to-face treatment. Besides, the additional component offered by the TCApp does not appear to be promising from a purely therapeutic perspective but perhaps as a cost-effective tool, reducing thus the costs and time burden associated with weekly visits to health professionals.


Asunto(s)
Terapia Cognitivo-Conductual/métodos , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Telemedicina/métodos , Adolescente , Femenino , Humanos , Masculino
4.
Eur Eat Disord Rev ; 27(3): 247-262, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30549146

RESUMEN

The aim of this study was to test the hypothesis that a negative reaction to the illness would be reduced through the "Collaborative Care Skills Workshops" programme among Spanish caregivers of relatives with an eating disorder. Caregivers were randomly allocated to either the skill-based workshops (n = 32) or psycho-educational workshops (n = 31), and assessments were carried out over time (T0 vs. T1 vs. T2 ). There were no significant differences between interventions on primary or secondary caregiver outcomes or among the patients themselves. However, caregivers in both interventions showed greater improvement at T2 on accommodating and enabling behaviours and an improvement at T1 in terms of psychological distress and appraisals towards the caregiving experience. Eating pathology, psychological distress, and some indices of psychosocial adjustment were significantly lower among the patients following both interventions (T1 ). Overall, both interventions may be able to help caregivers and patients to decrease their psychological distress. HIGHLIGHTS: Involvement of family members in the treatment could be the best resource for aiding in their relative's recovery. This is the first controlled study to test the effectiveness of the Collaborative Care Skills Workshops in Spanish caregivers. Both interventions could be implemented as both help Spanish caregivers and patients.


Asunto(s)
Cuidadores/educación , Cuidadores/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Adolescente , Adulto , Cuidadores/estadística & datos numéricos , Familia/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Evaluación de Programas y Proyectos de Salud , España , Adulto Joven
5.
Dement Geriatr Cogn Disord ; 46(1-2): 1-26, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30092585

RESUMEN

BACKGROUND: Cognitive therapy is a well-established intervention for treating elderly suffering from dementia. In particular, reality orientation and skills training seem to be effective interventions for reversing cognitive impairment among elderly, although findings are inconclusive. Therefore, a systematic update of the existing evidence of cognitive therapy for people suffering from dementia is needed. AIM: To review existing scientific evidence regarding the efficacy of cognitive therapies for elderly suffering from dementia. METHODS: Studies were retrieved from several bibliographic databases (January 2009 to December 2017) with prespecified selection criteria, data extraction, and methodological quality assessment. RESULTS: In total, 10 reality orientation, 25 skills training, and 12 mixed trials were identified as meeting the inclusion criteria and were systematically reviewed. Results from reality orientation trials showed minor effects for cognitive assessments, while skills training trials and mixed trials showed contradicting effects on cognition. Effects on other outcomes (e.g., daily functioning, depression, language) were limited or not found. CONCLUSIONS: Skills training trials and mixed trials seem to affect cognitive impairment in a positive way, although the results are inconclusive. Comparison between studies was difficult due to differences in form of intervention. Because findings are inconclusive, more structuralized and comparable randomized controlled trials are needed.


Asunto(s)
Enfermedad de Alzheimer/terapia , Terapia Cognitivo-Conductual/métodos , Adaptación Psicológica , Anciano , Enfermedad de Alzheimer/psicología , Cognición , Trastornos del Conocimiento/terapia , Trastorno Depresivo/psicología , Trastorno Depresivo/terapia , Femenino , Humanos , Lenguaje , Masculino , Ensayos Clínicos Controlados Aleatorios como Asunto , Prueba de Realidad , Resultado del Tratamiento
6.
BMC Psychiatry ; 18(1): 118, 2018 05 02.
Artículo en Inglés | MEDLINE | ID: mdl-29716580

RESUMEN

BACKGROUND: The clinical utility of the existing apps for people with eating disorders (EDs) is not clear. The TCApp has been specifically developed for people with EDs, is based on the principles of Cognitive Behavioural Treatment (CBT) and allows a bidirectional link between the patient and the therapist. The objectives of the study are, first, to assess the clinical efficacy of a combined intervention for Eating Disorders (EDs) that includes an online intervention through the TCApp plus standard face-to-face CBT in comparison to standard face-to-face CBT alone, and second, to examine the cost-effectiveness of the TCApp and identify potential predicting, moderating and mediating variables that promote or hinder the implementation of the TCApp in ED units in Spain. METHODS: The study methodology is that of a randomised controlled trial combining qualitative and quantitative methods, with a 6-month follow-up. Approximately 250 patients over 12 years old with a diagnosis of an ED from several ED units in Spain will be randomised to one of two different conditions. Participants, their caregivers, healthcare professionals and technical staff involved in the development and maintenance of the application will be assessed at baseline (T0), post-intervention (T1) and at 6 months follow-up (T2). Primary outcome measures will include ED symptomatology while secondary measures will include general psychopathology and quality of life for patients, quality of life and caregiving experience for family caregivers and adoption-related variables for all participants involved, such as perceived usability, user's satisfaction and technology acceptance. For the cost-effectiveness analysis, we will assess quality-adjusted life years (QALYs); total societal cost will be estimated using costs to patients and the health plan, and other related costs. DISCUSSION: The study will provide an important advance in the treatment of EDs; in the long term, it is expected to improve the quality of patient care and the treatment efficacy and to reduce waiting lists as well as direct and indirect costs associated with the treatment of EDs in Spain. TRIAL REGISTRATION: ClinicalTrials.gov: NCT03197519 ; registration date: June 23, 2017.


Asunto(s)
Terapia Cognitivo-Conductual/economía , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Aplicaciones Móviles/economía , Adolescente , Adulto , Niño , Terapia Cognitivo-Conductual/métodos , Análisis Costo-Beneficio , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Multicéntricos como Asunto , Investigación Cualitativa , Calidad de Vida , Años de Vida Ajustados por Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto , Proyectos de Investigación , España , Resultado del Tratamiento , Adulto Joven
7.
J Med Internet Res ; 20(5): e165, 2018 05 03.
Artículo en Inglés | MEDLINE | ID: mdl-29724702

RESUMEN

BACKGROUND: Multimorbidity is becoming increasingly common and is a leading challenge currently faced by societies with aging populations. The presence of multimorbidity requires patients to coordinate, understand, and use the information obtained from different health care professionals, while simultaneously striving to distinguish the symptoms of different diseases and self-manage their sometimes conflicting health problems. Electronic health (eHealth) tools provide a means to disseminate health information and education for both patients and health professionals and hold promise for more efficient and cost-effective care processes. OBJECTIVE: The aim of this study was to analyze the use of eHealth tools, taking into account the citizens' sociodemographic and clinical characteristics, and above all, the presence of multimorbidity. METHODS: Cross-sectional and exploratory research was conducted using online survey data from July 2011 to August 2011. Participants included a total of 14,000 citizens from 14 European countries aged 16 to 74 years, who had used an eHealth tool in the past 3 months. The variables studied were sociodemographic variables of the participants, the questionnaire items assessing the frequency of using eHealth tools, the degree of morbidity, and the eHealth adoption gradient. Chi-square tests were conducted to examine the relationship between the sociodemographic and clinical variables of participants and the group the participants were assigned to according to their frequency of eHealth use (eHealth user group). A one-way analysis of variance (ANOVA) allowed for assessing the differences in the eHealth adoption gradient average between different groups of individuals according to their morbidity level. A two-way between-groups ANOVA was performed to explore the effects of multimorbidity and age group on the eHealth adoption gradient. RESULTS: According to the eHealth adoption gradient, most participants (68.15%, 9541/14,000) were labeled as rare users, with the majority of them (55.1%, 508/921) being in the age range of 25 to 54 years, with upper secondary education (50.3%, 464/921), currently employed (49.3%, 454/921), and living in medium-sized cities (40.7%, 375/921). Results of the one-way ANOVA showed that the number of health problems significantly affected the use of eHealth tools (F2,13996=11.584; P<.001). The two-way ANOVA demonstrated that there was a statistically significant interaction between the effects of age and number of health problems on the eHealth adoption gradient (F4,11991=7.936; P<.001). CONCLUSIONS: The eHealth adoption gradient has proven to be a reliable way to measure different aspects of eHealth use. Multimorbidity is associated with a more intense use of eHealth, with younger Internet users using new technologies for health purposes more frequently than older groups with the same level of morbidity. These findings suggest the need to consider different strategies aimed at making eHealth tools more sensitive to the characteristics of older populations to reduce digital disadvantages.


Asunto(s)
Atención a la Salud/métodos , Internet/instrumentación , Telemedicina/métodos , Adolescente , Adulto , Anciano , Estudios Transversales , Unión Europea , Femenino , Humanos , Masculino , Persona de Mediana Edad , Multimorbilidad , Encuestas y Cuestionarios , Adulto Joven
8.
Eur Eat Disord Rev ; 26(5): 394-416, 2018 09.
Artículo en Inglés | MEDLINE | ID: mdl-29927004

RESUMEN

OBJECTIVE: To systematically review the existing evidence of mobile health (mHealth) tools for the treatment of eating disorders (ED). METHOD: Electronic databases (Pubmed, PsycInfo, and SCOPUS) were searched, and PRISMA guidelines were followed. Selected studies were divided into three categories according to the intended purpose of the mHealth tools used: (a) sole means of support, (b) complementary to standard face-to-face treatment, and (c) for relapse prevention. Additionally, studies were assessed on efficacy, qualitative information, and methodological quality. RESULTS: Fifteen studies were identified. Most studies using mHealth as a sole means of intervention or adjunct to traditional therapy showed no effects, although an improvement at postassessment was present in vodcast, smartphone application, and text-messaging interventions. Between group effects were only found for a text-messaging intervention for relapse prevention. Qualitative analyses showed that most mHealth interventions were considered as acceptable, supporting, and motivating by patients and therapists, although different important problems were observed in individual studies. CONCLUSIONS: Limited effects were found for mHealth interventions to reduce ED-related symptoms. A common evaluation framework for ED mHealth interventions should be proposed to assess the validity of interventions before implementing them on a larger scale in clinical practice.


Asunto(s)
Teléfono Celular , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Evaluación de Resultado en la Atención de Salud , Telemedicina , Humanos , Envío de Mensajes de Texto
9.
Women Health ; 56(6): 695-712, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26624288

RESUMEN

The objective of the authors in this study was to identify factors related to dysfunctional family functioning that may be associated with the severity of symptoms among adolescent patients with an eating disorder (ED) at first-contact care. A total of forty-eight mothers and forty-five fathers of fifty patients with EDs were recruited from an ED unit in Madrid, Spain, between October 2011 and July 2012. Parents completed self-report assessments related to family functioning and psychological wellbeing. Patients went through clinical interviews and completed a self-report questionnaire assessing symptom severity. Compared to fathers, mothers showed higher levels of anxiety and emotional over-involvement and perceived to a greater degree the positive and negative aspects of their experience as caregivers. Regarding the relationship between family functioning and symptom severity, mothers' perceptions of their family relationships as enmeshed and less adaptive, along with anxiety, accounted for 39% of variance in the severity of ED symptoms. Anxiety and symptom accommodation by the fathers accounted for 27% of variance in the symptom severity. Interventions that help parents to cope with their caregiving role should target behavioral, cognitive, and emotional aspects of their functioning and be gender-specific, to improve the outcome of ED in patients.


Asunto(s)
Relaciones Familiares/psicología , Padre/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Madres/psicología , Relaciones Padres-Hijo , Responsabilidad Parental/psicología , Adolescente , Adulto , Ansiedad/psicología , Cuidadores/psicología , Niño , Estudios Transversales , Depresión/psicología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Escalas de Valoración Psiquiátrica , Análisis de Regresión , Índice de Severidad de la Enfermedad , Factores Socioeconómicos , España , Encuestas y Cuestionarios
10.
Eur Eat Disord Rev ; 24(4): 294-303, 2016 07.
Artículo en Inglés | MEDLINE | ID: mdl-26915666

RESUMEN

The aim of this study was to compare the family functioning of Spanish parents of patients with an eating disorder (ED) with that of carers of patients with substance-related disorders (SRDs) and families of healthy controls (HC). This cross-sectional study included 48 mothers and 45 fathers of 48 adolescent patients with an ED, 47 mothers and 37 fathers of 47 patients with an SRD and 66 mothers and 50 fathers of 68 HCs. Families of ED patients reported lower levels of criticism, symptom accommodation and negative caregiving experience than families of SRD patients. However, relatives of both ED and SRD patients reported similar levels of quality of life related to their mental health. Furthermore, families of HCs generally exhibited better scores on all scales assessing their caregiving experiences. Regarding gender differences, there was a tendency in mothers, primarily those from the ED group, to report more adverse experiences as caregivers compared with fathers. Symptoms characteristic to each disorder may be associated with differential patterns of family functioning and may require specifically tailored family interventions. Early family intervention in adolescence is crucial, as relatives' quality of life does not seem to have been badly affected at this point in the course of the illness. Copyright © 2016 John Wiley & Sons, Ltd and Eating Disorders Association.


Asunto(s)
Cuidadores/psicología , Padre/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Madres/psicología , Calidad de Vida , Trastornos Relacionados con Sustancias/psicología , Adolescente , Adulto , Estudios de Casos y Controles , Estudios Transversales , Femenino , Humanos , Masculino , Salud Mental , Núcleo Familiar , Padres/psicología
11.
Eat Weight Disord ; 19(1): 31-9, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24122135

RESUMEN

PURPOSE: Differences in mental health among primary caregivers of eating disorder patients with purging and non-purging behaviors were explored and predictors of psychopathological distress among caregivers were also determined. METHODS: 177 caregivers, ranging from 29 to 75 years of age, of adults and adolescents with an ED participated in the study. The caregivers completed self-report assessments related to psychopathological distress (GSI), specific experience of caregiving and expressed emotion. Results A statistically significant difference in psychopathological distress was presented by caregivers of patients with purging behaviors (38.9%) compared with non-purging ones (25%), using a GSI cut-off point. In patients who purged, caregiver's intrusiveness and difficulties related to eating behavior accounted for 25% of the variance and in those who did not purge, difficulties related to eating behavior, guilt, social isolation, hostility and negative attitude toward illness accounted for 44% of variance. CONCLUSIONS: The differences observed indicate the importance of identifying purging as a significant clinical marker of increased risk of psychopathological distress in caregivers.


Asunto(s)
Cuidadores/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Salud Mental , Adolescente , Adulto , Anciano , Estudios Transversales , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Femenino , Humanos , Masculino , Salud Mental/estadística & datos numéricos , Persona de Mediana Edad , Factores de Riesgo , Estrés Psicológico/epidemiología , Estrés Psicológico/etiología , Encuestas y Cuestionarios , Adulto Joven
12.
Cytokine Growth Factor Rev ; 75: 12-30, 2024 02.
Artículo en Inglés | MEDLINE | ID: mdl-37949685

RESUMEN

The chemokine CXCL12, also known as stromal cell-derived factor 1 (SDF1), has emerged as a pivotal regulator in the intricate molecular networks driving cancer progression. As an influential factor in the tumor microenvironment, CXCL12 plays a multifaceted role that spans beyond its traditional role as a chemokine inducing invasion and metastasis. Indeed, CXCL12 has been assigned functions related to epithelial-to-mesenchymal transition, cancer cell stemness, angiogenesis, and immunosuppression, all of which are currently viewed as specialized biological programs contributing to the "metastatic cascade" among other cancer hallmarks. Its interaction with its cognate receptor, CXCR4, initiates a cascade of events that not only shapes the metastatic potential of tumor cells but also defines the niches within the secondary organs that support metastatic colonization. Given the profound implications of CXCL12 in the metastatic cascade, understanding its mechanistic underpinnings is of paramount importance for the targeted elimination of rate-limiting steps in the metastatic process. This review aims to provide a comprehensive overview of the current knowledge surrounding the role of CXCL12 in cancer metastasis, especially its molecular interactions rationalizing its potential as a therapeutic target.


Asunto(s)
Neoplasias , Receptores CXCR , Humanos , Quimiocina CXCL12 , Receptores CXCR4 , Microambiente Tumoral
13.
bioRxiv ; 2024 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-38352476

RESUMEN

Preclinical murine models in which primary tumors spontaneously metastasize to distant organs are valuable tools to study metastatic progression and novel cancer treatment combinations. Here, we characterize a novel syngeneic murine breast tumor cell line, NT2.5-lung metastasis (-LM), that provides a model of spontaneously metastatic neu-expressing breast cancer with quicker onset of widespread metastases after orthotopic mammary implantation in immune-competent NeuN mice. Within one week of orthotopic implantation of NT2.5-LM in NeuN mice, distant metastases can be observed in the lungs. Within four weeks, metastases are also observed in the bones, spleen, colon, and liver. Metastases are rapidly growing, proliferative, and responsive to HER2-directed therapy. We demonstrate altered expression of markers of epithelial-to-mesenchymal transition (EMT) and enrichment in EMT-regulating pathways, suggestive of their enhanced metastatic potential. The new NT2.5-LM model provides more rapid and spontaneous development of widespread metastases. Besides investigating mechanisms of metastatic progression, this new model may be used for the rationalized development of novel therapeutic interventions and assessment of therapeutic responses targeting distant visceral metastases.

14.
Clin Exp Metastasis ; 2024 May 08.
Artículo en Inglés | MEDLINE | ID: mdl-38717519

RESUMEN

Metastatic disease results from the dissemination of tumor cells beyond their organ of origin to grow in distant organs and is the primary cause of death in patients with advanced breast cancer. Preclinical murine models in which primary tumors spontaneously metastasize are valuable tools for studying metastatic progression and novel cancer treatment combinations. Here, we characterize a novel syngeneic murine breast tumor cell line that provides a model of spontaneously metastatic neu-expressing breast cancer with quicker onset of widespread metastases after orthotopic mammary implantation in immune-competent NeuN mice. The NT2.5-lung metastasis (-LM) cell line was derived from serial passaging of tumor cells that were macro-dissected from spontaneous lung metastases after orthotopic mammary implantation of parental NT2.5 cells. Within one week of NT2.5-LM implantation, metastases are observed in the lungs. Within four weeks, metastases are also observed in the bones, spleen, colon, and liver. We demonstrate that NT2.5-LM metastases are positive for NeuN-the murine equivalent of human epidermal growth factor 2 (HER2). We further demonstrate altered expression of markers of epithelial-to-mesenchymal transition (EMT), suggestive of their enhanced metastatic potential. Genomic analyses support these findings and reveal enrichment in EMT-regulating pathways. In addition, the metastases are rapidly growing, proliferative, and responsive to HER2-directed therapy. The new NT2.5-LM model provides certain advantages over the parental NT2/NT2.5 model, given its more rapid and spontaneous development of metastases. Besides investigating mechanisms of metastatic progression, this new model may be used for the rationalized development of novel therapeutic interventions and assessment of therapeutic responses.

15.
Artículo en Inglés | MEDLINE | ID: mdl-37493002

RESUMEN

Breast cancer is associated with adverse physical and psychological consequences. Although research has identified the various benefits linked to psychosocial interventions, mixed results have been found in relation to peer support. The aim of the present systematic review and meta-ethnography is to explore the qualitative evidence on the experience of breast cancer survivors in peer support. A systematic search of the literature was conducted until June 2023, and a meta-ethnographic approach was used to synthesize the included papers. Eleven articles were included, collecting the experience of 345 participants. The following four core areas involved in peer support implementation were identified from the synthesis: Peer support can create understanding and a mutual therapeutic and emotional connection; peer support can facilitate an educational and supportive patient-centered journey; peer support should monitor group members for unpleasant emotional experiences; peer support should have professional supervision of recruitment and training to prioritize quality. These results can be used as patient-centered insights by healthcare professionals to provide evidence-informed peer support programs and address current limitations in the field.

16.
Commun Chem ; 6(1): 199, 2023 Sep 19.
Artículo en Inglés | MEDLINE | ID: mdl-37726395

RESUMEN

Urea is a commonly used nitrogen fertiliser synthesised from ammonia and carbon dioxide using thermal catalysis. This process results in high carbon dioxide emissions associated with the required amounts of ammonia. Electrocatalysis provides an alternative method to urea production with reduced carbon emissions while utilising waste products like nitrate. This manuscript reports on urea synthesis from the electroreduction of nitrate and carbon dioxide using CuOxZnOy electrodes under mild conditions. Catalysts with different ratios of CuO and ZnO, synthesised via flame spray pyrolysis, were explored for the reaction. The results revealed that all the CuOxZnOy electrocatalyst compositions produce urea, but the efficiency strongly depends on the metal ratio composition of the catalysts. The CuO50ZnO50 composition had the best performance in terms of selectivity (41% at -0.8 V vs RHE) and activity (0.27 mA/cm2 at -0.8 V vs RHE) towards urea production. Thus, this material is one of the most efficient electrocatalysts for urea production reported so far. This study systematically evaluates bimetallic catalysts with varying compositions for urea synthesis from carbon dioxide and nitrate.

17.
Catal Sci Technol ; 13(24): 6959-6967, 2023 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-38089938

RESUMEN

A variety of methods are employed to synthesize amorphous silica-alumina (ASA) to resolve the role of Al speciation and surface area in the catalytic performance in the Diels-Alder cycloaddition reaction of 2,5-dimethylfuran and ethylene to p-xylene. ASA was prepared by homogeneous deposition-precipitation (HDP) of Al3+ on ordered mesoporous silica, i.e., SBA-15 and OMS prepared under hydrothermal synthesis conditions using an imidazole-based template, and one-step flame spray pyrolysis (FSP). IR spectroscopy and 27Al MAS NMR showed that the resulting ASA represented a set of materials with distinct textural and acidic properties. ASA prepared by grafting Al to ordered mesoporous silica led to a much higher concentration of Brønsted acid sites (BAS). These samples performed much better in the DAC reaction, with p-xylene yields higher than those obtained with a HBeta zeolite benchmark. Materials with Al partially in the bulk of silica (OMS, FSP) and containing significant alumina domains are less acidic and exhibit much lower p-xylene yields. These findings point to the importance of Brønsted acidity for p-xylene formation. This study shows that careful design of the Al speciation can lead to amorphous silica-alumina with similar DAC performance to microporous zeolites.

18.
Front Psychiatry ; 14: 999656, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37151962

RESUMEN

Introduction: We aim to examine the usability of a Virtual Reality (VR) platform, called ConVRSelf, which has been designed to address the needs of People Living With Obesity (PLWO). Methods: Fourteen participants with a desire to eat healthier and exercise more (6 normal weight and 8 PLWO; Mean age = 41.86, SD = 13.89) were assigned to the experimental group (EG) or the control group (CG). EG participants, after being trained on motivational interviewing skills, engaged in a virtual self-conversation using embodiment and body swapping techniques, which aimed to normalize and resolve their ambivalence to change lifestyle habits. CG participants, embodied in their virtual bodies, participated in a pre-established discourse with a virtual counselor giving them psychoeducational advice about how to change lifestyle habits. A mixed-methods design was used, involving a semi-structured interview and self-report questionnaires, including readiness to change habits (Readiness Rulers), body ownership (Body Ownership Questionnaire, BOQ), and system usability (System Evaluation Questionnaire, SEQ). Thematic content analysis was carried out for qualitative data while statistical data analysis was carried out using SPSS 20.0. Results: Participants from both groups showed high readiness to change lifestyle (Readiness Rulers) before engaging with the virtual experiences, which was maintained at the same level after the interventions and their scores on the SEQ and BOQ were satisfactory. Regarding qualitative information obtained from the interviews, almost all participants found the VR experience to be novel, interesting, and enjoyable. A higher acceptability was observed among PLWO from the EG than normal weight participants from the same group, a promising finding for the ConVRSelf platform, which had been specifically designed to address the needs of PLWO. Conclusion: The ConVRSelf system is well-accepted by participants and is ready to be tested with PLWO in a clinical setting.

19.
Eur Eat Disord Rev ; 20(1): e78-84, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21796734

RESUMEN

The aim of this study was to examine and identify the psychological, clinical and sociodemographic factors associated with emotional well-being by type of caregiver. A cross-sectional study was conducted among 185 primary caregivers and 92 secondary caregivers of patients with an eating disorder using the Hospital Anxiety and Depression Scale, the Experience of Caregiving Inventory and the Eating Disorders Symptom Impact Scale. According to a multiple regression analysis, a total of four models were obtained accounting for 42%-47% of the variance in emotional well-being. The variable that accounted for most of the variance of emotional well-being in three of the models was the impact of nutrition. Improving aspects of the relationships with the patients reduced anxiety and depression levels in primary caregivers. Similarly, a positive personal experience reduced depression in secondary caregivers. A higher education level was associated with decreased anxiety levels in both types of caregivers. Specific family interventions including both types of caregivers may be useful for providing emotional and adaptive personal coping skills.


Asunto(s)
Ansiedad/diagnóstico , Cuidadores/psicología , Depresión/diagnóstico , Emociones , Trastornos de Alimentación y de la Ingestión de Alimentos/enfermería , Calidad de Vida/psicología , Adolescente , Adulto , Ansiedad/economía , Cuidadores/clasificación , Cuidadores/economía , Niño , Estudios Transversales , Depresión/economía , Emociones/fisiología , Trastornos de Alimentación y de la Ingestión de Alimentos/economía , Femenino , Humanos , Relaciones Interpersonales , Masculino , Escalas de Valoración Psiquiátrica , Encuestas y Cuestionarios/economía , Adulto Joven
20.
Span J Psychol ; 15(2): 825-39, 2012 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-22774456

RESUMEN

Expressed emotion (EE) is considered a general predictor of poor outcome across a range of conditions, including eating disorders, and is valuable in measuring the effect of family interventions. There are no self-report questionnaires validated in Spanish to measure EE among relatives of patients with a psychiatric condition. The aim of this study was to examine the psychometric properties of the Spanish version of the Level of Expressed Emotion scale (LEE) among relatives of eating disorder patients. A cross-sectional study of 270 relatives of patients with an eating disorder was conducted to examine the factor structure, reliability and validity of the LEE scale. Results indicated that the LEE-S (Spanish version) did not correspond to the a priori subscales described in the original version. The refined 45-item LEE-S scale consisted of four factors which explained 25.5% of variance in EE for relatives. Reliability was acceptable (alpha ranged from .73 to .86). The discriminant validity of the subscales was moderately supported by correlations with psychological distress (GHQ-12; rho = .34) and specific caregiving experience (EDSIS; rho = .39). The LEE-S instrument has adequate psychometric properties and may be of value to assess families at risk of a negative emotional climate at home.


Asunto(s)
Cuidadores/psicología , Emoción Expresada , Familia/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/enfermería , Adulto , Anciano , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Psicometría/instrumentación , Reproducibilidad de los Resultados , Encuestas y Cuestionarios
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