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1.
Anaesthesia ; 79(7): 694-705, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38629288

RESUMO

Gender inequity remains an issue in anaesthesia despite increasing numbers of women training and achieving fellowship in the speciality. Women are under-represented in all areas of anaesthetic research, academia and leadership. The Gender Equity Subcommittee of the Australian and New Zealand College of Anaesthetists recently conducted a survey asking "Does gender still matter in the pursuit of a career in anaesthesia in 2022?". The survey was distributed to a randomly selected sample of 1225 anaesthetic consultants and completed by 470 respondents (38% response rate) with 793 free-text comments provided. Three overarching themes were identified: gender effects on the career and family interface; women do not fit the mould; and gender equity changes the status quo. Women respondents described a need to make a choice between career and family, which was not described by men, as well as stigmatisation of part-time work, a lack of access to challenging work and negative impacts of parental leave. Women respondents also described a sense of marginalisation within anaesthesia due to a 'boys' club' mentality, a lack of professional respect and insufficient structural supports for women in leadership. This was compounded for women from ethnically and culturally diverse backgrounds. A need for specific strategies to support anaesthetic careers for women was described as well as normalisation of flexibility in workplaces, combined with a broadening of our definition of success to allow people of all genders to experience fulfilment both at home and at work. This study is the first published qualitative data on factors affecting gender equity for anaesthetists in Australia and Aotearoa New Zealand. It highlights the need for further exploration, as well providing a foundation for changes in attitude and structural changes towards advancing gender equity.


Assuntos
Anestesiologia , Escolha da Profissão , Humanos , Nova Zelândia , Austrália , Feminino , Masculino , Inquéritos e Questionários , Equidade de Gênero , Adulto , Anestesistas/psicologia , Médicas/psicologia , Anestesiologistas/psicologia , Pesquisa Qualitativa , Sexismo , Pessoa de Meia-Idade
2.
Trop Med Int Health ; 20(1): 40-7, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25354844

RESUMO

OBJECTIVE: Invasive group A streptococcus (iGAS) disease is an important cause of mortality globally. The incidence of iGAS in Australia's tropical Northern Territory (NT) has been previously reported as 32.2/100 000 in Indigenous people for the period 1991-1996. We aimed to measure the incidence and severity of iGAS disease in the NT since this time. METHODS: We collected demographic data for all GAS blood culture isolates over a 12-year period (1998-2009) from the three hospital laboratories serving the tropical NT. We then collected detailed clinical information from hospital records and databases for the subset of these patients who were admitted to Royal Darwin Hospital during 2005-2009. RESULTS: There were 295 confirmed cases of GAS bacteraemia over the study period, with a mean (SD) age of 42.1 (22.0) years, and 163 (55.0%) were male. The annual age-adjusted incidence was 15.2 (95% CI 13.4-16.9)/100 000 overall and 59.4 (95% CI 51.2-67.6) in Indigenous Australians. For 2005-2009, there were 123 cases with the most common focus of infection being skin/soft tissue [44 (35.6%)]; 29 patients (23.6%) required intensive care unit admission and 20 (16.3%) had streptococcal toxic shock syndrome. Antecedent sore throat or use of non-steroidal anti-inflammatory drugs was rare, but current or recent scabies, pyoderma and trauma were common. CONCLUSION: The incidence and severity of iGAS are high and increasing in tropical northern Australia, and urgent attention is needed to improve surveillance and the social determinants of health in this population. This study adds to emerging data suggesting increasing importance of iGAS in low- and middle-income settings globally.


Assuntos
Infecções Estreptocócicas/epidemiologia , Streptococcus pyogenes , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Havaiano Nativo ou Outro Ilhéu do Pacífico , Northern Territory/epidemiologia , Fatores de Risco , Adulto Jovem
3.
Int J Obes (Lond) ; 39(1): 114-20, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24827639

RESUMO

BACKGROUND/OBJECTIVES: Melanocortins have a crucial role in appetite and weight regulation. Although the melanocortin 4 receptor (MC4R) gene has been repeatedly linked to obesity and antipsychotic-induced weight gain, the mechanism behind how it leads to this effect in still undetermined. The goal of this study was to conduct an in-depth and sophisticated analysis of MC4R polymorphisms, body mass index (BMI), eating behavior and depressed mood. SUBJECTS/METHODS: We genotyped 328 individuals of European ancestry on the following MC4R markers based on the relevant literature on obesity and antipsychotic-induced weight gain: rs571312, rs17782313, rs489693, rs11872992, and rs8087522. Height and weight were measured, and information on depressed mood and overeating behaviors was obtained during the in-person assessment. RESULTS: BMI was associated with rs17782313 C allele; however, this finding did not survive correction for multiple testing (P = 0.018). Although rs17782313 was significantly associated with depressed mood and overeating behaviors, tests of indirect effects indicated that emotional eating and food cravings, rather than depressed mood, uniquely accounted for the effect of this marker and BMI (n = 152). CONCLUSIONS: To our knowledge, this is the first study to investigate the link between MC4R rs17782313, mood and overeating behavior, as well as to demonstrate possible mechanisms behind MC4R's influence on body weight. If replicated in a larger sample, these results may have important clinical implications, including potential for the use of MC4R agonists in the treatment of obesity and disordered eating.


Assuntos
Depressão , Comportamento Alimentar , Hiperfagia/genética , Polimorfismo de Nucleotídeo Único/genética , Receptor Tipo 4 de Melanocortina/genética , População Branca , Adulto , Alelos , Antipsicóticos/efeitos adversos , Índice de Massa Corporal , Depressão/genética , Comportamento Alimentar/psicologia , Feminino , Predisposição Genética para Doença , Humanos , Hiperfagia/psicologia , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Inquéritos e Questionários , Aumento de Peso/genética , População Branca/genética
4.
Int J Obes (Lond) ; 35(10): 1347-54, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21266954

RESUMO

OBJECTIVE: This study provides an original perspective on the associations among endogenous opiates, overeating and obesity. The aim was to assess whether variability in the OPRM1 gene, as assessed by seven single-nucleotide polymorphisms, relates to individual differences in the preference for sweet and fatty foods. We also anticipated that these food preferences would be positively associated with binge eating, hedonic eating and emotionally driven eating-patterns of overeating that would, in turn, predict higher body mass index (BMI). DESIGN: Analysis of variance procedures examined genotype differences in food preferences; bivariate correlation coefficients examined the relationships among food preferences and the overeating variables; and a regression analysis tested the combined influences of the overeating variables on BMI. DNA was extracted from whole blood for the genotyping, and measures of food preferences and eating behaviours were obtained from well-validated self-report questionnaires. SUBJECTS: Participants were 300 healthy adult men and women recruited from the community. RESULTS: All the predicted associations were supported by statistically significant results. In particular, the G/G genotype group of the functional A118G marker of the OPRM1 gene reported higher preferences for sweet and fatty foods compared with the other two groups. Food preferences were also related to all overeating measures, which in turn accounted for a substantial proportion of the variance in BMI. CONCLUSIONS: Our findings suggest that some of the diversity in the preference for highly palatable foods can be explained by genotypic differences in the regulation of mu opioid receptors. The associations reported in this paper are important from a public-health perspective because of the abuse potential of sweet-fat foods and their strong relationship with obesity.


Assuntos
Comportamento Alimentar , Preferências Alimentares , Hiperfagia/psicologia , Obesidade/psicologia , Transtornos Relacionados ao Uso de Opioides/psicologia , Polimorfismo de Nucleotídeo Único , Receptores Opioides mu/genética , Adulto , Análise de Variância , Índice de Massa Corporal , Comportamento Alimentar/psicologia , Feminino , Preferências Alimentares/psicologia , Predisposição Genética para Doença/psicologia , Genótipo , Humanos , Hiperfagia/complicações , Hiperfagia/genética , Masculino , Pessoa de Meia-Idade , Obesidade/etiologia , Obesidade/genética , Transtornos Relacionados ao Uso de Opioides/complicações , Transtornos Relacionados ao Uso de Opioides/genética , Inquéritos e Questionários , Adulto Jovem
5.
J Thromb Haemost ; 8(6): 1323-32, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20180817

RESUMO

BACKGROUND: Activation of tumor cell-associated coagulation and plasminogen activator pathways occurs in malignant disease processes, including breast cancer, and may promote metastatic activity. OBJECTIVES/METHODS: To compare the coagulation and plasminogen activator pathways of normal and metastatic cells, we examined two cell lines from the MCF-10 family of breast cells: near-normal immortalized MCF-10A cells, and metastatic MCF-10CA1 cells. RESULTS: MCF-10CA1 cell motility was significantly increased as compared with that of MCF-10A cells. The two cell types supported similar rates of factor Xa generation, plasma thrombin generation, and fibrin formation. MCF-10A cells produced a stable fibrin network, whereas MCF-10CA1 cells lysed the surrounding fibrin network within 24 h of network formation. Importantly, fibrin located proximal to (within 10 microm) the MCF-10CA1 cell surface lysed substantially faster than fibrin located 100 microm from the surface. MCF-10CA1 cells supported significantly increased plasmin generation rates as compared with MCF-10A cells, providing a mechanism for the increased fibrinolytic activity of these cells towards the fibrin network. Metastatic MCF-10CA1 cells had increased expression (mRNA and protein) levels of urokinase plasminogen activator (u-PA) and decreased levels of plasminogen activator inhibitor-1 as compared with MCF-10A cells. Blocking u-PA activity with the active site-directed protease inhibitor amiloride substantially decreased MCF-10CA1 cell motility. Phosphorylated Akt levels were elevated in MCF-10CA1 cells, which partially explains the increased u-PA expression. CONCLUSIONS: These results suggest that the tumor-associated plasminogen activator pathway, not the coagulation pathway, is a key distinguishing feature between metastatic MCF10-CA1 cells and normal MCF-10A cells.


Assuntos
Coagulação Sanguínea , Neoplasias da Mama/metabolismo , Ativadores de Plasminogênio/metabolismo , Sequência de Bases , Neoplasias da Mama/patologia , Linhagem Celular Tumoral , Primers do DNA , Feminino , Humanos , Metástase Neoplásica , Gravidez
6.
Psychol Med ; 39(6): 1037-45, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18845008

RESUMO

BACKGROUND: Previous research has found that many patients with anorexia nervosa (AN) are unable to maintain normal weight after weight restoration. The objective of this study was to identify variables that predicted successful weight maintenance among weight-restored AN patients. METHOD: Ninety-three patients with AN treated at two sites (Toronto and New York) through in-patient or partial hospitalization achieved a minimally normal weight and were then randomly assigned to receive fluoxetine or placebo along with cognitive behavioral therapy (CBT) for 1 year. Clinical, demographic and psychometric variables were assessed after weight restoration prior to randomization and putative predictors of successful weight maintenance at 6 and 12 months were examined. RESULTS: The most powerful predictors of weight maintenance at 6 and 12 months following weight restoration were pre-randomization body mass index (BMI) and the rate of weight loss in the first 28 days following randomization. Higher BMI and lower rate of weight loss were associated with greater likelihood of maintaining a normal BMI at 6 and 12 months. An additional predictor of weight maintenance was site; patients in Toronto fared better than those in New York. CONCLUSIONS: This study found that the best predictors of weight maintenance in weight-restored AN patients over 6 and 12 months were the level of weight restoration at the conclusion of acute treatment and the avoidance of weight loss immediately following intensive treatment. These results suggest that outcome might be improved by achieving a higher BMI during structured treatment programs and on preventing weight loss immediately following discharge from such programs.


Assuntos
Anorexia Nervosa/psicologia , Aumento de Peso , Redução de Peso , Adolescente , Adulto , Anorexia Nervosa/terapia , Imagem Corporal , Índice de Massa Corporal , Peso Corporal , Terapia Cognitivo-Comportamental , Feminino , Fluoxetina/uso terapêutico , Humanos , Modelos Logísticos , Pessoa de Meia-Idade , New York , Ontário , Placebos , Inibidores Seletivos de Recaptação de Serotonina/uso terapêutico , Inquéritos e Questionários , Aumento de Peso/fisiologia , Redução de Peso/fisiologia , Adulto Jovem
7.
AJNR Am J Neuroradiol ; 29(3): 436-41, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-18065507

RESUMO

BACKGROUND AND PURPOSE: Previous studies have examined volumetric abnormalities in Rett syndrome (RTT), using MR imaging and focusing on selective changes. However, these studies preceded the identification of MECP2 as the gene mutated in most RTT cases. We studied regional brain volume changes as noted by MR imaging in girls with RTT who had mutations in the MECP2 gene and more or less severe clinical outcomes to further characterize the neuroanatomy of RTT and its correlations with clinical severity. MATERIALS AND METHODS: Complementary semiautomated Talairach- and voxel-based approaches were used to study spoiled gradient-recalled acquisition sequence MR imaging scans from 23 girls with MECP2 mutations/RTT, including a pair of discordant monozygotic twins and 25 age-matched control girls. Both absolute and relative volumetric changes were examined to account for the well-documented global reduction in brain volume seen in RTT. RESULTS: Absolute volumetric reductions were observed throughout the brain in RTT. Selective/relative decreases in parietal lobe gray matter, particularly in the dorsal parietal region, and mild, diffuse reductions in cortical white matter were observed in the RTT group compared with control subjects. In girls with RTT and a more severe phenotype, anterior frontal lobe volumes were relatively more reduced. Twin comparisons revealed selective preservation of the occipital cortex. CONCLUSION: Selective reductions of dorsal parietal gray matter and preservation of the occipital cortex seem to be basic neuroanatomic features of RTT, whereas preferential reduction of the anterior frontal lobe appears to be a correlate of clinical severity in this disorder. The most affected brain regions include those that may underlie key functional deficits observed in RTT.


Assuntos
Encéfalo/patologia , Interpretação de Imagem Assistida por Computador/métodos , Imageamento Tridimensional/métodos , Imageamento por Ressonância Magnética/métodos , Síndrome de Rett/patologia , Atrofia/patologia , Criança , Pré-Escolar , Feminino , Humanos
8.
J Manipulative Physiol Ther ; 30(2): 85-90, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17320728

RESUMO

OBJECTIVE: Signal intensity changes noted on magnetic resonance imaging scans in degenerated disks and adjacent bone marrow have been described and labeled "Modic" changes. Three types are identified, with type 1 being linked to low back pain. This study reports on the reliability of identifying and categorizing Modic marrow changes as would be done in the normal course of clinical practice. METHODS: Fifty-one lumbar spine sagittal magnetic resonance imaging scans of adult male patients older than 40 years were used. Two radiologists independently read each case at 2 different periods; scans were reordered for the second reading. The radiologists recorded the presence or absence of Modic changes anywhere in the lumbar spine for each case and classified each one as type 1, type 2, or type 3, and the level or levels where they were noted. The kappa statistic was used to evaluate inter- and intraexaminer agreement overall and by disk level. Percent agreement was also calculated. RESULTS: The overall kappa value for the interexaminer agreement of diagnosing the presence/absence of Modic changes for the entire lumbar spine as well as classifying them when present was kappa = 0.52 (moderate) with 71% agreement. At the L4 through 5 level, the kappa value was 0.81 (substantial) with 92% agreement, and at the L5 through S1 level, the kappa value was 0.58 (upper moderate) with 76% agreement. The L3 through L4 level had a kappa value of 0.66 (strong) but was considered "unstable" because of the lack of variability within the cells of the contingency table. The intraexaminer reliability gave a kappa value of 0.71 (strong) (82% agreement) for examiner 1 and a kappa value of 0.87 (almost perfect) (92%) for examiner 2. CONCLUSIONS: The Modic classification system shows moderate to almost perfect inter- and intraexaminer reliability in this study, simulating the methods of diagnosis used in clinical/radiological practice. The results of studies using the Modic system before investigations of its reliability can be viewed with more confidence, and future studies can continue to evaluate the link with patient symptoms and treatment outcomes.


Assuntos
Doenças da Medula Óssea/diagnóstico , Vértebras Lombares , Imageamento por Ressonância Magnética/estatística & dados numéricos , Adulto , Humanos , Masculino , Variações Dependentes do Observador , Reprodutibilidade dos Testes
9.
Appl Spectrosc ; 60(1): 65-71, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-16454914

RESUMO

In the work reported herein, we have combined a short-lived femtosecond laser-induced plasma (LIP) and a longer-lived nanosecond LIP in a collinear pulse configuration to examine the source(s) of atomic emission and signal-to-noise enhancement in dual-pulse laser-induced breakdown spectroscopy (LIBS). Initial studies indicate that the primary source of dual-pulse LIBS enhancement in the collinear configuration may in large part be a matter of pulse focus; focusing on the sample surface, for example, yields atomic emission enhancements whose lifetime correlates reasonably well with the femtosecond LIP emissive lifetime, suggesting that plasma-plasma coupling may play an important role at that pulse focus. At a second "optimal" focal position above the sample surface, alternatively, atomic emission and signal-to-noise enhancements correlate quite well with the nitrogen and oxygen atomic emission reductions previously seen following use of a femtosecond air spark and a nanosecond ablative pulse in the orthogonal dual-pulse configuration, suggesting that pressure or number density reductions due to femtosecond LIP formation in air may be significant at that pulse focus.


Assuntos
Gases/análise , Temperatura Alta , Lasers , Microquímica/métodos , Nanotecnologia/métodos , Análise Espectral/métodos , Desenho de Equipamento , Análise de Falha de Equipamento , Microquímica/instrumentação , Nanotecnologia/instrumentação , Fatores de Tempo
10.
Psychol Med ; 34(4): 671-9, 2004 May.
Artigo em Inglês | MEDLINE | ID: mdl-15099421

RESUMO

BACKGROUND: Knowledge about factors that predict relapse in anorexia nervosa (AN) is needed for the development of effective relapse prevention treatments and may also advance understanding of the psychopathology of AN. The aim of the present study was to examine the rate, timing and prediction of relapse in AN following weight restoration in a specialized in-patient treatment programme. METHOD: Fifty-one consecutive first-admission AN patients who were weight-restored following in-patient treatment participated in the study. Follow-up assessments were conducted a median of 15 months post-discharge. Relapse of AN was defined as a body mass index <17.5 for 3 consecutive months. Data were analysed using Kaplan-Meier survival analysis and Cox regression. RESULTS: The overall rate of relapse was 35% and the mean survival time was 18 months. The highest risk period was from 6 to 17 months after discharge. Several significant predictors of relapse were identified: a history of suicide attempt; previous specialized treatment for an eating disorder; severity of obsessive-compulsive symptoms at presentation; excessive exercise immediately after discharge; and residual concern about shape and weight at discharge. CONCLUSIONS: There continues to be a significant risk of relapse among AN patients who remain well for the first year post-discharge. Several variables were shown to be associated with an elevated risk of relapse. These findings have implications for the development of initial treatments and relapse prevention strategies for AN.


Assuntos
Adaptação Psicológica , Anorexia Nervosa/prevenção & controle , Adulto , Anorexia Nervosa/fisiopatologia , Anorexia Nervosa/psicologia , Índice de Massa Corporal , Peso Corporal , Feminino , Seguimentos , Humanos , Aceitação pelo Paciente de Cuidados de Saúde , Recidiva , Fatores de Risco , Análise de Sobrevida
11.
Development ; 128(21): 4301-14, 2001 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11684665

RESUMO

C. elegans embryogenesis begins with a stereotyped sequence of asymmetric cell divisions that are largely responsible for establishing the nematode body plan. These early asymmetries are specified after fertilization by the widely conserved, cortically enriched PAR and PKC-3 proteins, which include three kinases and two PDZ domain proteins. During asymmetric cell divisions in the early embryo, centrosome pairs initially are positioned on transverse axes but then rotate to align with the anteroposterior embryonic axis. We show that rotation of the centrosomal/nuclear complex in an embryonic cell called P(1) requires a maternally expressed gene we name spn-4. The predicted SPN-4 protein contains a single RNA recognition motif (RRM), and belongs to a small subfamily of RRM proteins that includes one Drosophila and two human family members. Remarkably, in mutant embryos lacking spn-4 function the transversely oriented 'P(1)' mitotic spindle appears to re-specify the axis of cell polarity, and the division remains asymmetric. spn-4 also is required for other developmental processes, including the specification of mesendoderm, the restriction of mesectoderm fate to P(1) descendants, and germline quiescence during embryogenesis. We suggest that SPN-4 post-transcriptionally regulates the expression of multiple developmental regulators. Such SPN-4 targets might then act more specifically to generate a subset of the anterior-posterior asymmetries initially specified after fertilization by the more generally required PAR and PKC-3 proteins.


Assuntos
Proteínas de Caenorhabditis elegans/genética , Proteínas de Caenorhabditis elegans/metabolismo , Caenorhabditis elegans/genética , Proteínas de Ciclo Celular/genética , Proteínas de Ciclo Celular/metabolismo , Regulação da Expressão Gênica no Desenvolvimento , Proteínas de Homeodomínio , Proteínas de Ligação a RNA/genética , Proteínas de Ligação a RNA/metabolismo , Fuso Acromático/fisiologia , Transativadores , Motivos de Aminoácidos , Sequência de Aminoácidos , Animais , Caenorhabditis elegans/embriologia , Proteínas de Ligação a DNA/genética , Embrião não Mamífero , Indução Embrionária , Endoderma , Feminino , Fatores de Transcrição GATA , Impressão Genômica , Proteínas de Helminto/genética , Proteínas de Helminto/metabolismo , Humanos , Masculino , Dados de Sequência Molecular , Mutação , Faringe/embriologia , Proteínas Serina-Treonina Quinases , Fatores de Transcrição/genética
12.
Int J Eat Disord ; 30(2): 187-92, 2001 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-11449452

RESUMO

OBJECTIVE: The main aim of this study was to assess the level of agreement between the Eating Disorders Examination (EDE) and its self-report version (EDE-Q) on key items in a clinic sample of patients with bulimia nervosa. A second objective was to assess the concordance between self-reported and objective body weight in the sample. METHOD: Sixty females who met DSM-IV criteria for bulimia nervosa (purging type) participated. Fifty-seven of them completed both the EDE and the EDE-Q. Self-reported weight was obtained during a telephone screening interview. Objective weight was subsequently measured at an assessment about a week later. RESULTS: The EDE generated higher scores than the EDE-Q for the frequency of objective binge and vomiting episodes. The two methods produced equivalent results for subjective binge episodes, laxative and diuretic misuse, and concerns about shape and weight. The self-report method underestimated body weight. DISCUSSION: These findings suggest that some core features of eating disorders are more accurately assessed using the EDE interview.


Assuntos
Imagem Corporal , Bulimia/classificação , Adulto , Peso Corporal , Bulimia/complicações , Bulimia/psicologia , Diuréticos/efeitos adversos , Comportamento Alimentar , Feminino , Humanos , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Inquéritos e Questionários/normas , Vômito
13.
Psychiatr Clin North Am ; 24(2): 281-92, 2001 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-11416928

RESUMO

This article has reviewed what is currently known regarding the relationship between specific patient variables and treatment response in AN, BN, and BED. Matching patient variables to treatment intensity remains an important and fruitful area for future research. There is a need for established guidelines for clinicians regarding the choice of the appropriateness of treatment settings and type of interventions delivered in those settings. These guidelines should be evidence based, with clear clinical indicators for each of the recognized eating disorders and their subclinical variants.


Assuntos
Continuidade da Assistência ao Paciente , Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Humanos
14.
Int J Eat Disord ; 29(2): 107-18, 2001 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-11429973

RESUMO

OBJECTIVE: The aim of this study was to evaluate the effectiveness of a school-based eating disorder prevention program designed to reduce dietary restraint and concern about shape and weight among adolescent girls. METHOD: A total of 474 girls aged 13-14 years received the program as part of their normal school curriculum. An assessment-only control group included 386 pupils. Measures of eating disorder features, self-esteem, and knowledge were administered before and after the intervention and at 6-month follow-up. RESULTS: Immediately following the intervention, there was a small reduction in dietary restraint and attitudes to shape and weight in the index group, whereas there was no change in the control group. This reduction was not maintained at 6-month follow-up although the dietary restraint scores of the index group remained lower than those of the control group. DISCUSSION: This prevention program achieved change in eating attitudes and behavior, although the change was modest in size and not sustained. Focusing on a high-risk subgroup of dieters might be a more fruitful primary prevention strategy.


Assuntos
Atitude , Terapia Comportamental/métodos , Transtornos da Alimentação e da Ingestão de Alimentos/prevenção & controle , Adolescente , Imagem Corporal , Índice de Massa Corporal , Peso Corporal , Dieta , Feminino , Seguimentos , Humanos , Autoimagem
15.
Behav Res Ther ; 39(5): 625-32, 2001 May.
Artigo em Inglês | MEDLINE | ID: mdl-11341255

RESUMO

This paper reports young adolescent female norms for the Eating Disorder Examination Questionnaire (EDE-Q). The standardization sample was comprised of 808 girls aged between 12 and 14 years from three single-sex schools (one private and two state schools). Means, standard deviations and percentile ranks for raw EDE-Q subscale scores are presented. Prevalence figures for key eating disorder behaviors over the previous two weeks were as follows: 4% self-induced vomiting; 1% laxative misuse; 0.4% diuretic misuse; and 8% regular binge eating.


Assuntos
Comportamento do Adolescente/psicologia , Imagem Corporal , Comportamento Alimentar , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Inquéritos e Questionários/normas , Adolescente , Canadá/epidemiologia , Criança , Transtornos da Alimentação e da Ingestão de Alimentos/epidemiologia , Transtornos da Alimentação e da Ingestão de Alimentos/psicologia , Feminino , Humanos , Prevalência , Valores de Referência , Reino Unido/epidemiologia
16.
Int J Eat Disord ; 29(4): 393-400, 2001 May.
Artigo em Inglês | MEDLINE | ID: mdl-11285576

RESUMO

UNLABELLED: Eating disorder patients are notoriously ambivalent about treatment and often lack motivation to change. These characteristics may decrease the number of patients entering treatment and increase the number of patients dropping out of treatment prematurely. OBJECTIVE: The aim of this pilot study was to develop and evaluate a motivational enhancement therapy (MET) group program for eating disorder patients. The goal of the MET intervention was to increase participants' motivation to change, which might be expected to increase the success of future treatment of patients with eating disorders. METHOD: Nineteen individuals who were referred for specialized treatment took part in the study. The intervention was based on existing literature in the field of addictions and modified for eating disorders. RESULTS: The motivational measures suggested that the participants' motivation to change increased following the intervention. A decrease in depressive symptoms and an increase in self-esteem were also found. DISCUSSION: The results of this study suggest that MET could be valuable for the treatment of eating disorder patients and provide a rationale to conduct further research in this area.


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Motivação , Psicoterapia/métodos , Adolescente , Adulto , Índice de Massa Corporal , Feminino , Humanos , Projetos Piloto
17.
Curr Biol ; 10(19): 1162-71, 2000 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-11050384

RESUMO

BACKGROUND: The Aurora/Ipl1p-related kinase AIR-2 is required for mitotic chromosome segregation and cytokinesis in early Caenorhabditis elegans embryos. Previous studies have relied on non-conditional mutations or RNA-mediated interference (RNAi) to inactivate AIR-2. It has therefore not been possible to determine whether AIR-2 functions directly in cytokinesis or if the cleavage defect results indirectly from the failure to segregate DNA. One intriguing hypothesis is that AIR-2 acts to localize the mitotic kinesin-like protein ZEN-4 (also known as CeMKLP1), which later functions in cytokinesis. RESULTS: Using conditional alleles, we established that AIR-2 is required at metaphase or early anaphase for normal segregation of chromosomes, localization of ZEN-4, and cytokinesis. ZEN-4 is first required late in cytokinesis, and also functions to maintain cell separation through much of the subsequent interphase. DNA segregation defects alone were not sufficient to disrupt cytokinesis in other mutants, suggesting that AIR-2 acts specifically during cytokinesis through ZEN-4. AIR-2 and ZEN-4 shared similar genetic interactions with the formin homology (FH) protein CYK-1, suggesting that AIR-2 and ZEN-4 function in a single pathway, in parallel to a contractile ring pathway that includes CYK-1. Using in vitro co-immunoprecipitation experiments, we found that AIR-2 and ZEN-4 interact directly. CONCLUSIONS: AIR-2 has two functions during mitosis: one in chromosome segregation, and a second, independent function in cytokinesis through ZEN-4. AIR-2 and ZEN-4 may act in parallel to a second pathway that includes CYK-1.


Assuntos
Proteínas de Caenorhabditis elegans , Caenorhabditis elegans/metabolismo , Ciclo Celular/fisiologia , Cinesinas/metabolismo , Metáfase , Proteínas Serina-Treonina Quinases/fisiologia , Fuso Acromático/metabolismo , Animais , Aurora Quinase B , Aurora Quinases , Caenorhabditis elegans/citologia , Caenorhabditis elegans/embriologia , DNA/metabolismo
18.
J Cell Biol ; 146(2): 439-51, 1999 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-10427096

RESUMO

Using RNA-mediated genetic interference in a phenotypic screen, we identified a conserved nonmuscle myosin II regulatory light chain gene in Caenorhabditis elegans, which we name mlc-4. Maternally supplied mlc-4 function is required for cytokinesis during both meiosis and mitosis and for establishment of anterior-posterior (a-p) asymmetries after fertilization. Reducing the function of mlc-4 or nmy-2, a nonmuscle myosin II gene, also leads to a loss of polarized cytoplasmic flow in the C. elegans zygote, supporting models in which cytoplasmic flow may be required to establish a-p differences. Germline P granule localization at the time of cytoplasmic flow is also lost in these embryos, although P granules do become localized to the posterior pole after the first mitosis. This result suggests that a mechanism other than cytoplasmic flow or mlc-4/nmy-2 activity can generate some a-p asymmetries in the C. elegans zygote. By isolating a deletion allele, we show that removing zygotic mlc-4 function results in an elongation phenotype during embryogenesis. An mlc-4/green fluorescent protein transgene is expressed in lateral rows of hypodermal cells and these cells fail to properly change shape in mlc-4 mutant animals during elongation.


Assuntos
Padronização Corporal , Caenorhabditis elegans/embriologia , Polaridade Celular , Proteínas de Helminto/fisiologia , Morfogênese , Miosinas/fisiologia , Animais , Caenorhabditis elegans/citologia , Caenorhabditis elegans/genética , Divisão Celular , Núcleo Celular/metabolismo , Tamanho Celular , Centrossomo/metabolismo , Citoplasma/metabolismo , Embrião não Mamífero/citologia , Embrião não Mamífero/metabolismo , Desenvolvimento Embrionário , Deleção de Genes , Genes de Helmintos/genética , Genes de Helmintos/fisiologia , Proteínas de Helminto/genética , Homozigoto , Miosinas/genética , Organelas/metabolismo , Fenótipo , RNA Mensageiro/análise , RNA Mensageiro/genética , RNA Mensageiro/fisiologia , Proteínas Recombinantes de Fusão/biossíntese , Proteínas Recombinantes de Fusão/metabolismo
19.
Nature ; 399(6738): 793-7, 1999 Jun 24.
Artigo em Inglês | MEDLINE | ID: mdl-10391246

RESUMO

The signalling protein Wnt regulates transcription factors containing high-mobility-group (HMG) domains to direct decisions on cell fate during animal development. In Caenorhabditis elegans, the HMG-domain-containing repressor POP-1 distinguishes the fates of anterior daughter cells from their posterior sisters throughout development, and Wnt signalling downregulates POP-1 activity in one posterior daughter cell called E. Here we show that the genes mom-4 and lit-1 are also required to downregulate POP-1, not only in E but also in other posterior daughter cells. Consistent with action in a common pathway, mom-4 and lit-1 exhibit similar mutant phenotypes and encode components of the mitogen-activated protein kinase (MAPK) pathway that are homologous to vertebrate transforming-growth-factor-beta-activated kinase (TAK1) and NEMO-like kinase (NLK), respectively. Furthermore, MOM-4 and TAK1 bind related proteins that promote their kinase activities. We conclude that a MAPK-related pathway cooperates with Wnt signal transduction to downregulate POP-1 activity. These functions are likely to be conserved in vertebrates, as TAK1 and NLK can downregulate HMG-domain-containing proteins related to POP-1.


Assuntos
Proteínas Adaptadoras de Transdução de Sinal , Proteínas de Caenorhabditis elegans , Caenorhabditis elegans/genética , Proteínas Quinases Dependentes de Cálcio-Calmodulina/metabolismo , Proteínas de Ligação a DNA/genética , Regulação para Baixo , Proteínas de Grupo de Alta Mobilidade/genética , Peptídeos e Proteínas de Sinalização Intracelular , Proteínas Quinases JNK Ativadas por Mitógeno , MAP Quinase Quinase Quinases , Quinases de Proteína Quinase Ativadas por Mitógeno , Proteínas Quinases Ativadas por Mitógeno , Proteínas Proto-Oncogênicas/metabolismo , Proteínas de Peixe-Zebra , Sequência de Aminoácidos , Animais , Caenorhabditis elegans/enzimologia , Caenorhabditis elegans/metabolismo , Proteínas de Transporte/genética , Proteínas de Transporte/metabolismo , Linhagem Celular , Clonagem Molecular , Ativação Enzimática , Regulação da Expressão Gênica no Desenvolvimento , Genes de Helmintos , Humanos , MAP Quinase Quinase 4 , Proteínas de Membrana/genética , Proteínas de Membrana/metabolismo , Dados de Sequência Molecular , Canais de Potássio de Abertura Dependente da Tensão da Membrana , Proteínas Quinases/metabolismo , Proteínas Serina-Treonina Quinases/química , Proteínas Serina-Treonina Quinases/genética , Proteínas Serina-Treonina Quinases/metabolismo , Homologia de Sequência de Aminoácidos , Transdução de Sinais , Proteínas Wnt
20.
J Consult Clin Psychol ; 66(4): 616-23, 1998 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-9735577

RESUMO

The aim of this study was to evaluate the effectiveness of 2 methods of administering a cognitive-behavioral self-help program for binge eating disorder. The study was designed to reproduce many of the conditions that apply in settings in which self-help interventions are most relevant. Seventy-two women with binge eating disorder were randomly assigned to 1 of 3 conditions for 12 weeks: pure self-help (PSH), guided self-help (GSH), or a waiting list (WL) control condition (followed by PSH or GSH). They were then followed up for 6 months. Both PSH and GSH had a substantial and sustained impact with almost half the participants ceasing to binge eat. There was little change in the WL condition. Cognitive-behavioral self-help may be of value both as an initial treatment for binge eating disorder and as a form of secondary prevention.


Assuntos
Bulimia/terapia , Terapia Cognitivo-Comportamental/normas , Grupos de Autoajuda/normas , Adulto , Análise de Variância , Distribuição de Qui-Quadrado , Feminino , Humanos , Modelos Logísticos , Pessoa de Meia-Idade , Resultado do Tratamento
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