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1.
Int J Eat Disord ; 55(1): 145-150, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34904742

RESUMO

OBJECTIVE: Findings show virtual therapy (conducted using internet-based videoconferencing techniques) to be a viable alternative to in-person therapy for a variety of mental-health problems. COVID-19 social-distancing imperatives required us to substitute virtual interventions for in-person sessions routinely offered in our outpatient eating disorder (ED) program-and afforded us an opportunity to compare the two treatment formats for clinical efficacy. METHODS: Using self-report assessments, we compared outcomes in a historical sample of 49 adults with heterogeneous EDs (treated in-person over 10-14 weeks in individual and group therapies) to those of 76 patients receiving comparable virtual treatments, at distance, during the COVID-19 outbreak. Linear mixed models were used to study symptom changes over time and to test for differential effects of treatment modality. RESULTS: Participants in both groups showed similar improvements on eating symptoms, levels of weight gain (in individuals in whom gain was indicated), and satisfaction with services. DISCUSSION: Our results suggest that short-term clinical outcomes with virtual and in-person ED therapies are comparable, and point to potentials of virtual therapy for situations in which geographical distance or other barriers impede physical access to trained therapists or specialized treatments.


Assuntos
COVID-19 , Transtornos da Alimentação e da Ingestão de Alimentos , Adulto , Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Humanos , Pacientes Ambulatoriais , SARS-CoV-2 , Comunicação por Videoconferência
2.
Eur Eat Disord Rev ; 30(2): 146-155, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34971014

RESUMO

Although treatment dropout is common among patients with eating disorders, very few studies have examined predictors of non-completion in day treatment. We investigated various potential predictors of dropout from adult day treatment. Participants were 295 adult patients with a diagnosis of Anorexia Nervosa (restricting or binge-eating/purging subtype), Bulimia Nervosa (BN), Other Specified Feeding or Eating Disorder, or Avoidant Restrictive Food Intake Disorder. Predictors included eating-disorder characteristics, motivation at the commencement of treatment, Body Mass Index (BMI), time spent in treatment and personality dimensions. Logistic regression analyses showed that for patients with a BMI of less than 20 at the start of treatment, low BMI was a significant predictor of staff-initiated termination due to not meeting weight gain goals. Furthermore, completing less than 6 weeks of treatment was associated with staff-initiated termination. For the whole sample, those with higher changes in weight over the course of treatment were less likely to terminate prematurely. None of the other predictor variables yielded significant results. Results of the current study highlight characteristics of patients who are more likely not to complete day treatment and can help identify patients who may be at risk for not succeeding in multi-diagnostic day treatment programs.


Assuntos
Anorexia Nervosa , Transtorno da Compulsão Alimentar , Bulimia Nervosa , Bulimia , Transtornos da Alimentação e da Ingestão de Alimentos , Adulto , Anorexia Nervosa/diagnóstico , Anorexia Nervosa/terapia , Transtorno da Compulsão Alimentar/diagnóstico , Bulimia Nervosa/diagnóstico , Bulimia Nervosa/terapia , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Humanos
3.
Eat Weight Disord ; 27(7): 2919-2929, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35366169

RESUMO

PURPOSE: Self-determination theory suggests that autonomous motivation for change (i.e., motivation that is internal and self-endorsed) can be enhanced in therapeutic contexts by clinicians acting in an autonomy supportive manner. While previous research has established a link between autonomy support (AS) and autonomous motivation in enhancing outcomes in eating disorder (ED) treatment, few studies have examined factors that support or hinder therapists' ability to be autonomy supportive in the context of an ED therapeutic encounter. The goal of the present study was to conduct a qualitative analysis of personal and contextual factors that facilitated or hindered therapists' ability to provide autonomy supportive interventions. METHODS: Semi-structured interviews were conducted with 10 therapists conducting outpatient psychotherapy at a specialized eating disorders treatment program. Data were analyzed using thematic analysis. RESULTS: The most frequently noted facilitators were organizational support of AS interventions and patients' engagement and motivation for treatment. The most frequently noted barriers were patients' personality variables such as patients that exhibit passive and help-rejecting behaviours, as well as therapists feeling overwhelmed due to a high workload. CONCLUSION: Our results provide insight into the factors that facilitate and impede the utilization of an autonomy supportive approach in specialized ED treatment and can be used to inform future quantitative research on such factors. LEVEL OF EVIDENCE: Level V: Opinions of respected authorities, based on descriptive studies, narrative reviews, clinical experience, or reports of expert committees.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos , Aconselhamento , Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Humanos , Motivação , Pacientes Ambulatoriais , Autonomia Pessoal
4.
Int J Eat Disord ; 53(9): 1534-1538, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32427359

RESUMO

OBJECTIVE: People who are ill with anorexia nervosa (AN) show altered availability of key plasma nutrients. However, little is known about the patterning of alterations that occurs across diverse nutrients during active phases of illness or about the persistence of any such alterations following remission of illness. METHOD: We compared plasma levels of one-carbon metabolism nutrients across women with active AN (AN-Active: n = 53), in remission from AN (AN-Remitted: n = 40), or who had no eating-disorder history (NED: n = 36). We also tested associations between body mass index (BMI) changes and changes in pre- to posttreatment nutrient levels, and explored the association between nutrient levels, on the one hand, and BMI and eating symptoms, on the other. Choline, betaine, and methionine were analyzed using mass spectrometry. Folate and B12 were analyzed using the AccuBind® ELISA kit. Eating-disorder symptoms were assessed by interview and self-report. RESULTS: Compared to NED individuals, AN-Active individuals exhibited significantly elevated B12 and (less-reliably) betaine. In AN-Active individuals, lower BMI was associated with higher B12. DISCUSSION: The observed alterations run contrary to the intuition that plasma nutrient levels should be directly responsive to nutritional status and suggest, instead, the existence of compensatory adaptations to malnutrition in individuals with active AN. Further study is required to clarify mechanisms that underlie such effects.


Assuntos
Anorexia Nervosa/sangue , Carbono/metabolismo , Adolescente , Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Adulto Jovem
5.
Eur Eat Disord Rev ; 28(1): 79-86, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31823473

RESUMO

DNA methylation allows for the environmental regulation of gene expression and is believed to link environmental stressors to psychiatric disorder phenotypes, such as anorexia nervosa (AN). The oxytocin receptor (OXTR) gene is epigenetically regulated, and studies have shown associations between OXTR and social behaviours in various samples, including women with AN. The present study examined differential levels of methylation at various CG sites of the OXTR gene in 69 women with active AN (AN-Active), 21 in whom AN was in remission (AN-Rem) and 35 with no eating disorder (NED). Within each group, we explored the correlation between methylation and measures of social behaviour such as insecure attachment and social avoidance. Hypermethylation of a number of CG sites was seen in AN-Active participants as compared with AN-Rem and NED participants. In the AN-Rem sample, methylation at CG27501759 was significantly positively correlated with insecure attachment (r = .614, p = .003, permutation Q = 0.008) and social avoidance (r = .588, p = .005, permutation Q = 0.0184). Our results highlight differential methylation of the OXTR gene among women with AN, those in remission from AN, and those who never had AN and provide some evidence of associations between OXTR methylation and social behaviour in women remitted from AN.


Assuntos
Anorexia Nervosa/genética , Anorexia Nervosa/psicologia , Metilação de DNA , Receptores de Ocitocina/genética , Comportamento Social , Adulto , Feminino , Humanos , Adulto Jovem
6.
J Psychiatry Neurosci ; 44(3): 205-213, 2019 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-30693739

RESUMO

Background: This study explored state-related tendencies in DNA methylation in people with anorexia nervosa. Methods: We measured genome-wide DNA methylation in 75 women with active anorexia nervosa (active), 31 women showing stable remission of anorexia nervosa (remitted) and 41 women with no eating disorder (NED). We also obtained post-intervention methylation data from 52 of the women from the active group. Results: Comparisons between members of the active and NED groups showed 58 differentially methylated sites (Q < 0.01) that corresponded to genes relevant to metabolic and nutritional status (lipid and glucose metabolism), psychiatric status (serotonin receptor activity) and immune function. Methylation levels in members of the remitted group differed from those in the active group on 265 probes that also involved sites associated with genes for serotonin and insulin activity, glucose metabolism and immunity. Intriguingly, the direction of methylation effects in remitted participants tended to be opposite to those seen in active participants. The chronicity of Illness correlated (usually inversely, at Q < 0.01) with methylation levels at 64 sites that mapped onto genes regulating glutamate and serotonin activity, insulin function and epigenetic age. In contrast, body mass index increases coincided (at Q < 0.05) with generally increased methylation-level changes at 73 probes associated with lipid and glucose metabolism, immune and inflammatory processes, and olfaction. Limitations: Sample sizes were modest for this type of inquiry, and findings may have been subject to uncontrolled effects of medication and substance use. Conclusion: Findings point to the possibility of reversible epigenetic alterations in anorexia nervosa, and suggest that an adequate pathophysiological model would likely need to include psychiatric, metabolic and immune components.


Assuntos
Anorexia Nervosa/genética , Anorexia Nervosa/fisiopatologia , Metilação de DNA/genética , Epigenoma/genética , Adolescente , Adulto , Anorexia Nervosa/terapia , Doença Crônica , Feminino , Humanos , Estudos Longitudinais , Pessoa de Meia-Idade , Indução de Remissão , Adulto Jovem
7.
Int J Eat Disord ; 52(9): 1015-1023, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31408212

RESUMO

OBJECTIVE: Although hospitalization is sometimes necessary when treating individuals with anorexia nervosa, the available literature provides limited guidance to inform decisions surrounding optimal components or duration of inpatient treatments. We report observational data comparing outcomes of two inpatient treatments. The first was longer and more strictly structured around a Contingency Management Protocol (CMP) emphasizing external incentives for achieving weight-restoration goals; the second was a shorter Autonomy Support Protocol (ASP) that progressively increased patient autonomy around meal management without external incentives. METHOD: We compared data from 41 patients who participated in the ASP to a historical sample of 41 patients treated using the CMP. At admission, discharge, and post-treatment follow-up, participants completed the Eating Disorder Examination Questionnaire and the Behavior and Symptom Identification Scale-32, and we measured height and weight to compute body mass index. RESULTS: Multilevel modeling analyses that controlled for time in treatment and time in follow-up indicated the two protocols yielded equivalent in-treatment gains and post-treatment loss of gains. DISCUSSION: Our results indicate that shorter inpatient stays emphasizing autonomous control over eating behavior may yield outcomes that are equivalent to those of lengthier, more stringent, and more costly approaches implicating external incentives and controls.


Assuntos
Anorexia Nervosa/terapia , Protocolos Clínicos/normas , Duração da Terapia , Adulto , Feminino , Hospitalização , Humanos , Pacientes Internados , Masculino , Resultado do Tratamento , Adulto Jovem
8.
Community Ment Health J ; 54(8): 1162, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29980964

RESUMO

The original version of this article unfortunately contained a mistake in EAT-26 values under "Patients Receiving Treatment for an ED in their Sector" section.

9.
Community Ment Health J ; 54(8): 1154-1161, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29948625

RESUMO

We describe the implementation and impact of a province-wide program of knowledge exchange (KE), aimed at developing capacity for the treatment of people with eating disorders (EDs). The program is designed to equip clinicians working in nonspecialized health-care installations with skills to evaluate and treat people with EDs. Trainings were conducted at 21 institutions. The majority of clinicians reported satisfaction with the KE program and indicated that the trainings enhanced their confidence and ability to treat patients with EDs. A subset of clinicians received case supervision with a specialist ED therapist and followed patients with EDs (n = 119). Treated patients showed significant improvements on eating and depressive symptoms, and reported satisfaction with the treatments they received.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Atenção Primária à Saúde/organização & administração , Melhoria de Qualidade/organização & administração , Atenção Terciária à Saúde/organização & administração , Adolescente , Adulto , Idoso , Educação Médica Continuada/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Atenção Primária à Saúde/métodos , Atenção Terciária à Saúde/métodos , Adulto Jovem
10.
Int J Eat Disord ; 50(9): 1058-1066, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28842966

RESUMO

OBJECTIVE: Across diverse clinical problems, therapists' autonomy support has been found to increase patients' autonomous motivation for change. Being self-motivated has, in turn, been linked to superior treatment response. In people undergoing outpatient eating disorder (ED) treatment, we examined associations among ratings of autonomy support received from therapists and other carers, self-reported engagement in therapy, and clinical outcomes. METHOD: Ninety-seven women with anorexia nervosa, bulimia nervosa, or a related ED provided measures of motivational status and clinical symptoms at the beginning and end of time-limited (12-16 weeks) segments of specialized treatment. At mid-treatment, patients also rated the extent to which they perceived their individual therapists, group therapists, group-therapy peers, family members, friends, and romantic partners as being autonomy supportive. RESULTS: Overall, multiple regression analyses indicated autonomy support to moderate (rather than mediate) the link between initial autonomous motivation and later change in autonomous motivation-with results indicating that, independently of ED diagnosis or treatment intensity, greater perceived autonomy support (from therapists and nontherapists alike) coincided with larger increases in autonomous motivation over the course of therapy. In turn, higher autonomous motivation at end-of-therapy coincided with larger reductions in eating symptoms. DISCUSSION: Findings suggest that the experience of autonomy support (from therapists and nontherapists) is associated with increasing motivation in people undergoing ED treatment, and that becoming self-motivated is linked to better outcomes. Such results indicate that support from therapists, relatives, and peers can favorably influence personal engagement in individuals undergoing ED treatment.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Autonomia Pessoal , Adulto , Feminino , Humanos , Masculino , Motivação , Pacientes Ambulatoriais , Autorrelato
11.
Adv Exp Med Biol ; 978: 93-103, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28523542

RESUMO

Eating disorders (EDs) are characterized by intense preoccupation with shape and weight and maladaptive eating practices. The complex of symptoms that characterize EDs often arise through the activation of latent genetic potentials by environmental exposures, and epigenetic mechanisms are believed to link environmental exposures to gene expression. This chapter provides an overview of genetic factors acting in the etiology of EDs. It then provides a background to the hypothesis that epigenetic mechanisms link stresses such as obstetric complications and childhood abuse as well as effects of malnutrition to eating disorders (EDs). The chapter then summarizes the emerging body of literature on epigenetics and EDs-mainly studies on DNA methylation in samples of anorexia and bulimia. The available evidence base suggests that an epigenetically informed perspective contributes in valuable ways to the understanding of why people develop EDs.


Assuntos
Epigênese Genética/genética , Transtornos da Alimentação e da Ingestão de Alimentos/genética , Adolescente , Criança , Maus-Tratos Infantis , Metilação de DNA , Transtornos da Alimentação e da Ingestão de Alimentos/etiologia , Transtornos da Alimentação e da Ingestão de Alimentos/psicologia , Feminino , Interação Gene-Ambiente , Humanos , Masculino , Desnutrição/etiologia , Desnutrição/fisiopatologia , Proteínas do Tecido Nervoso/genética , Neurotransmissores/metabolismo , Gravidez , Complicações na Gravidez/fisiopatologia , Complicações na Gravidez/psicologia , Psicologia do Adolescente , Estresse Psicológico
12.
Int J Eat Disord ; 49(6): 626-9, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26841197

RESUMO

OBJECTIVE: We explored the effect of autonomous and controlled motivation on outcomes for patients undergoing inpatient treatment for Anorexia Nervosa (AN). METHOD: Data on 80 patients with AN were available for the start of treatment, and for 49 at end of treatment. Patients completed measures of autonomous and controlled motivation, eating disorder symptoms and attitudes, and comorbid psychopathology at the start and end of treatment. RESULTS: Patients showed significant improvements on eating symptoms and comorbid psychopathology over the course of treatment. Autonomous motivation was a significant predictor of change in severity of eating symptoms and attitudes such that patients with higher pre-treatment levels of autonomous motivation showed larger post-treatment reductions on these indices. No such effects were associated with controlled motivation. DISCUSSION: This study highlights a relationship between autonomous motivation and outcome in an inpatient setting. © 2016 Wiley Periodicals, Inc. (Int J Eat Disord 2016; 49:626-629).


Assuntos
Anorexia Nervosa/terapia , Motivação , Adolescente , Adulto , Anorexia Nervosa/psicologia , Atitude Frente a Saúde , Ingestão de Alimentos/psicologia , Feminino , Hospitalização , Humanos , Pacientes Internados/psicologia , Masculino , Autonomia Pessoal , Resultado do Tratamento
13.
Int J Eat Disord ; 48(5): 512-6, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25808647

RESUMO

BACKGROUND: Research associates maternal stress exposures (especially when occurring late in gestation) with heightened risk of subsequent emotional and behavioral problems in affected offspring. However, as yet, no study has examined the association between prenatal maternal stress (PNMS) and affected children's risk of anorexia- or bulimia-type eating disturbances. OBJECTIVE: To study the influences of PNMS on later disordered eating in exposed offspring. METHOD: We used the Eating Attitudes Test (EAT)-26 to measure eating attitudes and behaviors in 54 thirteen-year olds whose mothers had been exposed, while pregnant with these children, to the 1998 Quebec Ice Storm-a natural disaster regarded as a model of exposure to severe environmental stress. Mothers' stress was measured shortly after exposure to the storm using established indices of objective and subjective stress. RESULTS: Hierarchical multiple linear regression analyses indicated that once variance owing to children's body mass index and sex was accounted for, stress exposures during the third trimester of pregnancy predicted elevated EAT-26 scores in affected children-perhaps even more so when levels of objective stress were high. DISCUSSION: Third trimester exposure to PNMS, especially when objectively severe, seems to be associated with increased eating-disorder-linked manifestations in affected early adolescents.


Assuntos
Desastres , Transtornos da Alimentação e da Ingestão de Alimentos/etiologia , Efeitos Tardios da Exposição Pré-Natal/psicologia , Estresse Psicológico/complicações , Adolescente , Adulto , Índice de Massa Corporal , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Transtornos da Alimentação e da Ingestão de Alimentos/psicologia , Feminino , Humanos , Masculino , Gravidez , Estudos Prospectivos , Quebeque , Estresse Psicológico/psicologia
14.
Int J Eat Disord ; 47(5): 500-6, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24431323

RESUMO

OBJECTIVE: We examined differences in treatment outcome associated with a "self-directed"- versus "external-incentive"-based day treatment protocol for individuals with eating disorders (EDs) with below normal body mass index. The self-directed protocol recommended a weekly 500 g weight gain, but allowed participants freedom to gain weight at their own rate; the "external-incentive" protocol required a minimum weight gain of 500 g/week as a requirement for staying in the program. METHOD: Weight outcome was available for 49 individuals who were treated with the recommended weight gain protocol, and 40 individuals who were treated with the required weight gain protocol. RESULTS: Post-treatment weight was significantly higher in patients treated in the required weight gain protocol compared to those treated in the recommended weight gain protocol. All patients, regardless of which program they completed, showed improvements in the measures of eating-disorder and comorbid-psychiatric symptoms. DISCUSSION: This study demonstrated the benefits of an alteration in protocol that required no additional financial or human resources. Further studies are needed to validate the effectiveness of various day treatment protocol parameters.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Aumento de Peso , Adolescente , Adulto , Análise de Variância , Índice de Massa Corporal , Peso Corporal , Estudos de Coortes , Transtornos da Alimentação e da Ingestão de Alimentos/psicologia , Humanos , Motivação , Resultado do Tratamento , Adulto Jovem
15.
Arch Sex Behav ; 42(5): 883-93, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23455658

RESUMO

Men and women have been seeking professional assistance to help control hypersexual urges and behaviors since the nineteenth century. Despite that the literature emphasizes that cases of hypersexuality are highly diverse with regard to clinical presentation and comorbid features, the major models for understanding and treating hypersexuality employ a "one size fits all" approach. That is, rather than identify which problematic behaviors might respond best to which interventions, existing approaches presume or assert without evidence that all cases of hypersexuality (however termed or defined) represent the same underlying problem and merit the same approach to intervention. The present article instead provides a typology of hypersexuality referrals that links individual clinical profiles or symptom clusters to individual treatment suggestions. Case vignettes are provided to illustrate the most common profiles of hypersexuality referral that presented to a large, hospital-based sexual behaviors clinic, including: (1) Paraphilic Hypersexuality, (2) Avoidant Masturbation, (3) Chronic Adultery, (4) Sexual Guilt, (5) the Designated Patient, and (6) better accounted for as a symptom of another condition.


Assuntos
Comportamento Sexual/psicologia , Disfunções Sexuais Psicogênicas/diagnóstico , Disfunções Sexuais Psicogênicas/terapia , Relações Extramatrimoniais/psicologia , Feminino , Culpa , Humanos , Masculino , Disfunções Sexuais Psicogênicas/psicologia
16.
J Behav Health Serv Res ; 50(3): 365-380, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-36180648

RESUMO

Despite availability of evidence-based treatments for eating disorders (EDs), individuals with EDs often do not receive informed treatment. Training of non-specialized clinicians by experienced professionals through knowledge exchange (KE) programs is an effective way to enhance accessibility to evidence-based treatments for EDs. The authors conducted a qualitative analysis of factors that facilitated or impeded the uptake of an ED-focused KE program. Semi-structured interviews were conducted with mental health professionals (n = 43) and managers (n = 11) at 13 community mental-health sites at which the KE program was offered. Data were analyzed using a qualitative content analysis. Key facilitators identified were management support for the program and building competence through ongoing supervision of clinicians. Main barriers were limited access to ED patients to treat and having insufficient time to apply ED interventions in front-line settings. The results provide insights into the practical imperatives involved in implementing a KE initiative for ED treatment.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos , Pessoal de Saúde , Humanos , Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Pesquisa Qualitativa
17.
World J Biol Psychiatry ; 24(3): 254-259, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-35703085

RESUMO

OBJECTIVES: Recent studies have reported altered methylation levels at disorder-relevant DNA sites in people who are ill with Anorexia Nervosa (AN) compared to findings in people with no eating disorder (ED) or in whom AN has remitted. The preceding implies state-related influences upon gene expression in people with AN. This study further examined this notion. METHODS: We measured genome-wide DNA methylation in 145 women with active AN, 49 showing stable one-year remission of AN, and 64 with no ED. RESULTS: Comparisons revealed 205 differentially methylated sites between active and no ED groups, and 162 differentially methylated sites between active and remitted groups (Q < 0.01). Probes tended to map onto genes relevant to psychiatric, metabolic and immune functions. Notably, several of the genes identified here as being differentially methylated in people with AN (e.g. SYNJ2, PRKAG2, STAT3, CSGALNACT1, NEGR1, NR1H3) have figured in previous studies on AN. Effects also associated illness chronicity and lower BMI with more pronounced DNA methylation alterations, and remission of AN with normalisation of DNA methylation. CONCLUSIONS: Findings corroborate earlier results suggesting reversible DNA methylation alterations in AN, and point to particular genes at which epigenetic mechanisms may act to shape AN phenomenology.


Assuntos
Anorexia Nervosa , Transtornos da Alimentação e da Ingestão de Alimentos , Feminino , Humanos , Anorexia Nervosa/genética , Anorexia Nervosa/psicologia , Metilação de DNA , Epigenoma , Transtornos da Alimentação e da Ingestão de Alimentos/genética , Epigênese Genética
18.
J Eat Disord ; 11(1): 146, 2023 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-37644511

RESUMO

BACKGROUND: Given limited availability of informed treatments for people affected by eating disorders (EDs), there has been increasing interest in developing self-administered, technology-based ED interventions. However, many available interventions are limited to a specific ED diagnosis or assume that participants are ready to change. We developed a digital self-help application (called ASTrA) that was explicitly designed to be transdiagnostic and to help increase motivation for change. The aim of the present study was to describe the development and examine the psychometric properties, user satisfaction and rated potentials for practical use of our application. METHODS: The content of our application was based on concepts derived from self-determination theory, the transtheoretical model of change, and cognitive theory. The application was developed by a multidisciplinary team of clinicians, researchers, staff members and individuals with lived ED experience, each being involved in all steps of the application's development. We tested validity, reliability, satisfaction and perceived feasibility for clinical implementation in an independent sample of 15 patients with an ED and 13 clinicians specialized in ED treatment. Psychometric properties were evaluated using descriptive statistics, correlations, content validity indices and intraclass coefficients. Differences in satisfaction ratings and perceived potential for clinical implementation of the application between clinicians and patients were examined using Mann-Whitney U tests. RESULTS: The digital application showed excellent validity (mean i-CVI: .93, range: .86-.96) and internal reliability (all Cronbach alpha's > .88). Patients and clinicians both considered the application acceptable, appropriate, and feasible for use in clinical practice. CONCLUSIONS: Findings suggest that our transdiagnostic interactive application has excellent psychometric properties. Furthermore, patients and clinicians alike were positive about the possible use of the application in clinical practice. The next step will be to investigate the application's effectiveness as an intervention to promote autonomous motivation and to facilitate remission in people on the waitlist for specialized ED treatment.

19.
J Sex Med ; 6(5): 1369-77, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19210707

RESUMO

INTRODUCTION: The debate over the classification of dyspareunia as a sexual dysfunction or as a pain disorder raises the question of the comparative cognitive salience of sex and/or pain in the experience of women who report pain with intercourse. Refinements in our understanding of cognitive factors in the experience of pain with intercourse may be important in the development of effective treatments. AIM: This study aimed to compare the cognitive salience of sex and pain word stimuli in women reporting pain with intercourse and in a control group of women without sexual dysfunction. METHODS: Twenty women reporting pain during sexual intercourse and 20 women reporting no sexual dysfunction (controls) participated in a memory protocol designed to detect differences as a function of group membership and type of stimulus (sex, pain, and two other control stimuli). MAIN OUTCOME MEASURES: Dependent measures were recall, recognition, intrusions, and false positives for sex words, pain words, and two other control word types. RESULTS: Regardless of group membership, women had best recall for sex-related words; however, women reporting sexual pain evidenced more false memories for pain words than did control women, and pain words elicited more false memories than any other type of word for women with sexual pain. CONCLUSION: Results are interpreted to suggest that repeated activation through experience with persistent sexual pain may have contributed to the: (i) development of stronger semantic networks related to pain in comparison to no sexual dysfunction controls and; (ii) activation of pain networks more easily triggered by pain-related stimuli in women with sexual pain than in no sexual dysfunction controls. Sex, however, had not attained the cognitive salience of pain.


Assuntos
Dispareunia/psicologia , Memória , Sexualidade/psicologia , Adolescente , Adulto , Cognição , Feminino , Humanos , Adulto Jovem
20.
Physiol Behav ; 162: 181-5, 2016 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-26836275

RESUMO

Epigenetic mechanisms are believed to link environmental exposures to gene expression, and in so doing, to provide a physical basis for the activation, by life experiences, of mental-health problems. This paper provides a background to the hypothesis that epigenetic mechanisms link life stresses (perinatal, childhood and adult) and effects of malnutrition to the eating disorders (EDs). The paper reviews literature bearing upon the putative link between epigenetic factors and ED development, and examines ways in which epigenetic alterations could account for risk of eating disturbances and commonly associated behavioral and emotional problems. Ultimately, we propose that epigenetic processes provide an intriguing (although hypothetical) biological "platform" upon which ED-relevant effects of perinatal insults, life stresses, and consequences of malnutrition may be registered, and argue that an epigenetically informed understanding may explain why EDs are triggered and maintained by excessive caloric restraint, why they coincide so frequently with mood- and impulse-regulation problems, and why they tend to become increasingly entrenched over time. Finally, we comment on the clinical relevance and implications of an epigenetically informed model of ED etiology.


Assuntos
Epigênese Genética/fisiologia , Transtornos da Alimentação e da Ingestão de Alimentos/genética , Transtornos da Alimentação e da Ingestão de Alimentos/metabolismo , Interação Gene-Ambiente , Estado Nutricional , Estresse Psicológico/fisiopatologia , Animais , Humanos
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