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1.
Chem Biodivers ; 18(8): e2100307, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34086414

RESUMO

Brazilian green and red propolis stand out as commercial products for different medical applications. In this article, we report the antimicrobial activities of the hydroalcoholic extracts of green (EGP) and red (ERP) propolis, as well as guttiferone E plus xanthochymol (8) and oblongifolin B (9) from red propolis, against multidrug-resistant bacteria (MDRB). We undertook the minimal inhibitory (MIC) and bactericidal (MBC) concentrations, inhibition of biofilm formation (MICB50 ), catalase, coagulase, DNase, lipase, and hemolysin assays, along with molecular docking simulations. ERP was more effective by displaying MIC and MBC values <100 µg mL-1 . Compounds 8 and 9 displayed the lowest MIC values (0.98 to 31.25 µg mL-1 ) against all tested Gram-positive MDRB. They also inhibited the biofilm formation of S. aureus (ATCC 43300 and clinical isolate) and S. epidermidis (ATCC 14990 and clinical isolate), with MICB50 values between 1.56 and 6.25 µg mL-1 . The molecular docking results indicated that 8 and 9 might interact with the catalase's amino acids. Compounds 8 and 9 have great antimicrobial potential.


Assuntos
Anti-Infecciosos/farmacologia , Farmacorresistência Bacteriana Múltipla/efeitos dos fármacos , Própole/química , Anti-Infecciosos/química , Anti-Infecciosos/metabolismo , Proteínas de Bactérias/química , Proteínas de Bactérias/metabolismo , Benzofenonas/química , Benzofenonas/isolamento & purificação , Benzofenonas/metabolismo , Benzofenonas/farmacologia , Sítios de Ligação , Biofilmes/efeitos dos fármacos , Brasil , Catalase/química , Catalase/metabolismo , Domínio Catalítico , Testes de Sensibilidade Microbiana , Simulação de Acoplamento Molecular , Própole/metabolismo , Própole/farmacologia , Staphylococcus aureus/efeitos dos fármacos , Staphylococcus aureus/fisiologia
2.
Int J Mol Sci ; 21(21)2020 Nov 07.
Artigo em Inglês | MEDLINE | ID: mdl-33171773

RESUMO

Considering our previous findings on the remarkable activity exhibited by cobalt(III) with 2-acetylpyridine-N(4)-R-thiosemicarbazone (Hatc-R) compounds against Mycobacterium tuberculosis, the present study aimed to explored new structure features of the complexes of the type [Co(atc--R)2]Cl, where R = methyl (Me, 1) or phenyl (Ph, 2) (13C NMR, high-resolution mass spectrometry, LC-MS/MS, fragmentation study) together with its antibacterial and antiviral biological activities. The minimal inhibitory and minimal bactericidal concentrations (MIC and MBC) were determined, as well as the antiviral potential of the complexes on chikungunya virus (CHIKV) infection in vitro and cell viability. [Co(atc-Ph)2]Cl revealed promising MIC and MBC values which ranged from 0.39 to 0.78 µg/mL in two strains tested and presented high potential against CHIKV by reducing viral replication by up to 80%. The results showed that the biological activity is strongly influenced by the peripheral substituent groups at the N(4) position of the atc-R1- ligands. In addition, molecular docking analysis was performed. The relative binding energy of the docked compound with five bacteria strains was found in the range of -3.45 and -9.55 kcal/mol. Thus, this work highlights the good potential of cobalt(III) complexes and provide support for future studies on this molecule aiming at its antibacterial and antiviral therapeutic application.


Assuntos
Cobalto/farmacologia , Tiossemicarbazonas/química , Antibacterianos/farmacologia , Antivirais/farmacologia , Bactérias/efeitos dos fármacos , Febre de Chikungunya/tratamento farmacológico , Vírus Chikungunya/efeitos dos fármacos , Cromatografia Líquida/métodos , Cobalto/química , Complexos de Coordenação/farmacologia , Ligantes , Testes de Sensibilidade Microbiana , Simulação de Acoplamento Molecular , Espectrometria de Massas em Tandem/métodos , Tiossemicarbazonas/farmacologia
3.
J Clin Psychol ; 74(4): 509-522, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29064556

RESUMO

OBJECTIVE: This secondary analysis of a randomized controlled trial investigated whether bug-in-the-eye (BITE) supervision (live computer-based supervision during a psychotherapy session) affects the manner in which patients and therapists experience general change mechanisms (GCMs) during cognitive-behavioral therapy (CBT). METHOD: A total of 23 therapists were randomized either to the BITE condition or the control condition (delayed video-based [DVB] supervision). After each session, both patients (BITE: n = 19; DVB: n = 23) and therapists (BITE: n = 11; DVB: n = 12) completed the Helping Alliance Questionnaire (HAQ) and the Bernese Post Session Report (BPSR). The HAQ total score and the 3 secondary factors of the BPSR (interpersonal experiences, intrapersonal experiences, problem actuation) functioned as GCMs. Multilevel models were performed. RESULTS: For patients, GCMs did not develop differently between BITE and DVB during CBT. Therapists rated the alliance as well as interpersonal and intrapersonal experiences not significantly different between BITE and DVB during CBT, but they perceived problem actuation to increase significantly more in BITE than in DVB (p < .05). CONCLUSION: BITE supervision might be helpful in encouraging CBT therapists to apply interventions, which focus on the activation of relevant problems and related emotions.


Assuntos
Terapia Cognitivo-Comportamental/educação , Retroalimentação Psicológica , Pessoal de Saúde/educação , Capacitação em Serviço/métodos , Transtornos Mentais/terapia , Avaliação de Processos e Resultados em Cuidados de Saúde , Aliança Terapêutica , Adulto , Terapia Cognitivo-Comportamental/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Organização e Administração , Gravação em Vídeo
4.
Behav Cogn Psychother ; 44(5): 601-14, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27126076

RESUMO

BACKGROUND: Cognitive-behavioural therapy can change dysfunctional symptom attributions in patients with hypochondriasis. Past research has used forced-choice answer formats, such as questionnaires, to assess these misattributions; however, with this approach, idiosyncratic attributions cannot be assessed. Free associations are an important complement to existing approaches that assess symptom attributions. AIMS: With this study, we contribute to the current literature by using an open-response instrument to investigate changes in freely associated attributions after exposure therapy (ET) and cognitive therapy (CT) compared with a wait list (WL). METHOD: The current study is a re-examination of a formerly published randomized controlled trial (Weck, Neng, Richtberg, Jakob and Stangier, 2015) that investigated the effectiveness of CT and ET. Seventy-three patients with hypochondriasis were randomly assigned to CT, ET or a WL, and completed a 12-week treatment (or waiting period). Before and after the treatment or waiting period, patients completed an Attribution task in which they had to spontaneously attribute nine common bodily sensations to possible causes in an open-response format. RESULTS: Compared with the WL, both CT and ET reduced the frequency of somatic attributions regarding severe diseases (CT: Hedges's g = 1.12; ET: Hedges's g = 1.03) and increased the frequency of normalizing attributions (CT: Hedges's g = 1.17; ET: Hedges's g = 1.24). Only CT changed the attributions regarding moderate diseases (Hedges's g = 0.69). Changes in somatic attributions regarding mild diseases and psychological attributions were not observed. CONCLUSIONS: Both CT and ET are effective for treating freely associated misattributions in patients with hypochondriasis. This study supplements research that used a forced-choice assessment.


Assuntos
Hipocondríase/terapia , Entrevista Psicológica/métodos , Adulto , Terapia Cognitivo-Comportamental/métodos , Feminino , Associação Livre , Humanos , Hipocondríase/psicologia , Terapia Implosiva/métodos , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Resultado do Tratamento
5.
Clin Psychol Psychother ; 23(5): 386-396, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26179466

RESUMO

Live supervision enables a supervisor to have direct insight into the psychotherapeutic process and allows him or her to provide immediate feedback to the trainee. Therefore, live supervision might be superior to traditional supervisory formats that only allow for the provision of delayed feedback. When considering the different live supervision formats, bug-in-the-eye (BITE) supervision is particularly promising because of its improved and less invasive procedure. The current study compared the efficacy of BITE supervision with that of delayed video-based (DVB) supervision. In the present study, 23 therapists were randomly assigned to either the BITE supervision or DVB supervision groups. The participants were psychotherapy trainees who treated 42 patients (19 under BITE supervision and 23 under DVB supervision) over 25 sessions of cognitive-behavioural therapy. Two independent raters blind to the treatment conditions evaluated therapeutic alliance and therapist competence based on 195 videotapes. Therapeutic alliance was significantly stronger among the treatments conducted under BITE supervision than those conducted under DVB supervision. Moreover, a higher level of therapeutic competence was found in the BITE condition than in the DVB condition. However, no differences between supervision conditions were found when the results were controlled for the level of therapeutic alliance and therapist competence demonstrated in the first session. No differences were observed between the supervision conditions with respect to patient outcomes. There is evidence that BITE supervision is able to improve therapeutic alliance and therapist competence. However, these findings should be interpreted with caution because possible pre-treatment differences between therapists might explain the superiority of BITE supervision. Copyright © 2015 John Wiley & Sons, Ltd. KEY PRACTITIONER MESSAGE: BITE supervision positively influences the therapeutic alliance and therapeutic competencies during cognitive-behavioural therapy. A supervision format that more directly addresses therapeutic processes is more effective in improving those processes than an indirect supervision format. Pre-treatment differences between therapists might explain the superiority of BITE supervision. BITE supervision can be considered a safe intervention.


Assuntos
Competência Clínica/estatística & dados numéricos , Terapia Cognitivo-Comportamental/métodos , Relações Profissional-Paciente , Psicoterapia/educação , Psicoterapia/métodos , Adulto , Feminino , Humanos , Masculino , Processos Psicoterapêuticos
6.
J Nerv Ment Dis ; 203(11): 883-5, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26513512

RESUMO

Cognitive behavioral therapy has demonstrated large effect sizes for the treatment of hypochondriasis. However, response and remission rates, which provide important additional information about clinically significant improvements, have seldom been reported. In the current study, rates of response and remission after cognitive therapy and exposure therapy were evaluated. The study was based on a randomized controlled trial that treated patients with hypochondriasis (N = 75). The primary outcome measure was a clinician-administered structured interview for hypochondriasis. At posttreatment, response was found for 72.0% and remission for 45.3% of the patients. At 12-month follow-up, the response rate was 68.0%, and the remission rate was 54.7%. No significant differences in the frequency of response/remission were found between the cognitive therapy and the exposure therapy groups. Patients' and therapists' perspectives of clinical improvement corresponded with remission rather than response rates. Improvement rates were compared with those of other mental disorders, and implications for the treatment of hypochondriasis were discussed.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Hipocondríase/psicologia , Hipocondríase/terapia , Terapia Implosiva/métodos , Adulto , Feminino , Seguimentos , Humanos , Hipocondríase/diagnóstico , Masculino , Pessoa de Meia-Idade , Indução de Remissão/métodos , Resultado do Tratamento
7.
J Nerv Ment Dis ; 203(7): 493-8, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26039700

RESUMO

The relationship between health behavior and hypochondriasis has not yet been sufficiently examined, as previous studies investigated only individual dimensions of health behavior. In the present study, we extend current literature by examining multiple dimensions of health behavior. One hundred twenty-six participants, consisting of 40 participants with a primary diagnosis of hypochondriasis, 41 participants with a primary diagnosis of anxiety disorder, and 45 healthy controls, completed a multidimensional questionnaire for the assessment of health behavior and other measures for the evaluation of general psychopathology, illness anxiety, depression, and general anxiety. Patients with hypochondriasis revealed a less active way of life (d = 0.89) and lower hygiene (d = 0.60) than healthy controls, but did not differ from healthy controls regarding their compliance to medical recommendations. No differences were found in substance avoidance, security orientation, and diet. Hypochondriasis-specific behavior should be monitored in the treatment of the disorder.


Assuntos
Comportamentos Relacionados com a Saúde , Hipocondríase/diagnóstico , Hipocondríase/psicologia , Adolescente , Adulto , Idoso , Transtornos de Ansiedade/diagnóstico , Transtornos de Ansiedade/epidemiologia , Transtornos de Ansiedade/psicologia , Comorbidade , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/epidemiologia , Transtorno Depressivo/psicologia , Feminino , Alemanha , Humanos , Higiene , Hipocondríase/epidemiologia , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Cooperação do Paciente/psicologia , Valores de Referência , Inquéritos e Questionários , Adulto Jovem
8.
Clin Psychol Psychother ; 22(2): 116-24, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-24123559

RESUMO

The misinterpretation of bodily symptoms as an indicator of a serious illness is a key feature of the criteria and the cognitive-behavioural models of hypochondriasis. Previous research suggests that individuals suffering from health anxiety endorse attributions of physical disease, whereas persons with elevated general anxiety have the tendency to attribute psychological causes to their symptoms. However, whether a somatic attribution style is specific to patients with hypochondriasis, as opposed to those with anxiety disorders, has not yet been investigated and is therefore part of the present study. Fifty patients with hypochondriasis, 50 patients with a primary anxiety disorder and 50 healthy participants were presented with nine common bodily sensations and had to spontaneously attribute possible causes to the symptoms. Patients with hypochondriasis differed from patients with anxiety disorders and healthy controls in giving significantly fewer normalizing explanations, but attributing more often in terms of moderate or serious diseases. Patients with anxiety disorders also made significantly fewer normalizing attributions and more somatic attributions to a severe illness than healthy controls. There were no differences between the groups in the frequency of psychological attributions and somatic attributions concerning mild diseases. The present study demonstrates that hypochondriasis is associated with a disorder-specific attribution style connecting somatic symptoms primarily with moderate and serious diseases. By contrast, normalizing attributions are largely omitted from consideration by patients with hypochondriasis. The findings conform with the cognitive conception of hypochondriasis and support the strategy of modifying symptom attributions, as practiced in cognitive-behavioural therapy.


Assuntos
Transtornos de Ansiedade/psicologia , Hipocondríase/psicologia , Comportamento de Doença , Transtornos Somatoformes/psicologia , Adaptação Psicológica , Adulto , Transtornos de Ansiedade/diagnóstico , Transtornos de Ansiedade/terapia , Terapia Cognitivo-Comportamental , Comorbidade , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/psicologia , Transtorno Depressivo/terapia , Feminino , Humanos , Hipocondríase/diagnóstico , Hipocondríase/terapia , Entrevista Psicológica , Masculino , Pessoa de Meia-Idade , Inventário de Personalidade/estatística & dados numéricos , Psicometria , Transtornos Somatoformes/diagnóstico , Transtornos Somatoformes/terapia
9.
Psychosomatics ; 55(4): 362-371, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24360529

RESUMO

BACKGROUND: Previous experiences with illness and traumatic experiences are considered as important risk factors for the development of health anxiety and hypochondriasis. However, empirical research is insufficient and lacks adequate comparison groups. OBJECTIVE: Therefore, we sought to determine whether experiences with illness and traumatic experiences are really specific risk factors for hypochondriasis. METHOD: In the current study, patients with the diagnosis of hypochondriasis (n = 80), patients with a primary anxiety disorder (n = 80), and healthy controls (n = 83) were investigated regarding their previous experiences with illness (self and other) and traumatic childhood experiences. RESULTS: We found that patients with hypochondriasis reported a higher level of experience with illness and with traumatic childhood experiences than healthy controls. However, no differences were found between patients with hypochondriasis and those with an anxiety disorder, regarding their level of experience with illness and traumatic experiences. CONCLUSIONS: Previous experiences with illness and traumatic childhood experiences did not prove to be specific risk factors for the development of hypochondriasis. The importance of both experiences with illness and traumatic experiences as risk factors, as considered in the Diagnostic and Statistical Manual and in established cognitive-behavioral models, does not seem to be supported empirically. Further research should therefore also consider other potential risk factors discussed in the literature.


Assuntos
Adultos Sobreviventes de Eventos Adversos na Infância/psicologia , Doença/psicologia , Hipocondríase/etiologia , Ferimentos e Lesões/complicações , Adulto , Adultos Sobreviventes de Eventos Adversos na Infância/estatística & dados numéricos , Transtornos de Ansiedade/etiologia , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Fatores de Risco , Inquéritos e Questionários , Ferimentos e Lesões/psicologia
10.
Int J Behav Med ; 20(4): 618-26, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23065436

RESUMO

BACKGROUND: Clinician-administered interviews are essential for assessing the efficacy of treatment studies and constitute an important instrument for clinical practice. Recently, the Yale-Brown Obsessive Compulsive Scale was adapted for the dimensional assessment of hypochondriacal characteristics (H-YBOCS) and yielded promising results. PURPOSE: This study aimed to develop and validate a German version of the H-YBOCS. METHOD: Altogether, 101 patients with hypochondriasis and 49 patients with anxiety disorders were diagnosed using the German version of the H-YBOCS. Well-established questionnaires for assessing hypochondriacal characteristics and the general psychopathology were administered as well. RESULTS: Exploratory and confirmatory factor analyses suggested a three-factor structure for the German version of the H-YBOCS (cognitive factor, behavioral factor, and insight factor). The current version of H-YBOCS demonstrated high internal consistency (α = 0.93) and inter-rater reliability (ICC = .97). Convergent and discriminant validity were also confirmed by high correlations with questionnaires such as the Illness Attitudes Scales (r = 0.81) and non-significant correlations with the Brief Symptom Inventory (r = 0.12). The H-YBOCS discriminated between patients with hypochondriasis and those with anxiety disorder, with high sensitivity (0.94) and specificity (0.78). CONCLUSION: The German version of the H-YBOCS proved to be a highly effective interview instrument for the dimensional assessment of hypochondriacal characteristics and therefore constitutes an important contribution to scientific research and clinical practice.


Assuntos
Cognição , Hipocondríase/psicologia , Transtorno Obsessivo-Compulsivo/psicologia , Índice de Gravidade de Doença , Inquéritos e Questionários/normas , Adulto , Análise Fatorial , Feminino , Alemanha , Humanos , Hipocondríase/complicações , Hipocondríase/diagnóstico , Idioma , Masculino , Pessoa de Meia-Idade , Transtorno Obsessivo-Compulsivo/complicações , Transtorno Obsessivo-Compulsivo/diagnóstico , Inventário de Personalidade/estatística & dados numéricos , Psicometria , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
11.
Int J Colorectal Dis ; 27(2): 233-41, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21912876

RESUMO

PURPOSE: There is growing enthusiasm for robotic-assisted laparoscopic operations across many surgical specialities, including colorectal surgery, often not supported by robust clinical or cost-effectiveness data. A proper assessment of this new technology is required, prior to widespread recommendation or implementation. METHODS/DESIGN: The ROLARR trial is a pan-world, prospective, randomised, controlled, unblinded, superiority trial of robotic-assisted versus standard laparoscopic surgery for the curative treatment of rectal cancer. It will investigate differences in terms of the rate of conversion to open operation, rate of pathological involvement of circumferential resection margin, 3-year local recurrence, disease-free and overall survival rates and also operative morbidity and mortality, quality of life and cost-effectiveness. The primary outcome measure is the rate of conversion to open operation. For 80% power at the 5% (two-sided) significance level, to identify a relative 50% reduction in open conversion rate (25% to 12.5%), 336 patients will be required. The target recruitment is 400 patients overall to allow loss to follow-up. Patients will be followed up at 30 days and 6 months post-operatively and then annually until 3 years after the last patient has been randomised. DISCUSSION: In many centres, robotic-assisted surgery is being implemented on the basis of theoretical advantages, which have yet to be confirmed in practice. Robotic surgery is an expensive health care provision and merits robust evaluation. The ROLARR trial is a pragmatic trial aiming to provide a comprehensive evaluation of both robotic-assisted and standard laparoscopic surgery for the curative resection of rectal cancer.


Assuntos
Cooperação Internacional , Laparoscopia/métodos , Neoplasias Retais/cirurgia , Robótica/métodos , Adulto , Custos de Cuidados de Saúde , Humanos , Laparoscopia/efeitos adversos , Laparoscopia/economia , Laparoscopia/ética , Estudos Prospectivos , Qualidade de Vida , Neoplasias Retais/economia , Neoplasias Retais/patologia , Robótica/economia , Robótica/ética , Resultado do Tratamento
12.
Psychosomatics ; 53(2): 148-54, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22424163

RESUMO

BACKGROUND: The cognitive model and empirical research underline the importance of dysfunctional beliefs about bodily symptoms and illness in health anxiety and hypochondriasis. However, specificity of such beliefs has not yet been adequately demonstrated for patients with hypochondriasis. OBJECTIVE: This study examined whether dysfunctional beliefs about bodily symptoms and illness are elevated in comparison to patients with anxiety disorders and, therefore, specific for patients with hypochondriasis. METHOD: Patients with hypochondriasis (n = 38), patients with anxiety disorders (n = 40), and healthy controls (n = 42) completed the Symptom and Outcomes Scale (SOS) measuring participants' estimation of the likelihood of various symptoms being indicative of a particular illness. Additionally, participants' general psychopathology (Brief Symptom Inventory), depressive (Beck Depression Inventory-II), and anxiety symptoms (Beck Anxiety Inventory) were evaluated. RESULTS: In comparison to patients with anxiety disorders and healthy controls, patients with hypochondriasis estimated bodily symptoms to be more likely an indicator for a catastrophic illness. Patients with anxiety disorders took a middle position between patients with hypochondriasis and healthy controls. Regarding the estimation of the likelihood of symptoms indicating a minor illness, no differences were found between the three groups. CONCLUSIONS: Dysfunctional beliefs about symptoms and illness are important and specific for patients with hypochondriasis, which is in line with the cognitive model. In order to reduce misinformation about serious illnesses in patients with hypochondriasis, more attention should be paid to psychoeducational strategies.


Assuntos
Transtornos de Ansiedade/psicologia , Atitude Frente a Saúde , Hipocondríase/psicologia , Modelos Psicológicos , Adulto , Análise de Variância , Transtornos de Ansiedade/diagnóstico , Transtornos de Ansiedade/epidemiologia , Estudos de Casos e Controles , Comorbidade , Feminino , Humanos , Hipocondríase/diagnóstico , Hipocondríase/epidemiologia , Masculino , Escalas de Graduação Psiquiátrica , Enquadramento Psicológico
13.
BJS Open ; 6(6)2022 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-36417312

RESUMO

BACKGROUND: Undertaking randomized clinical trials (RCTs) in emergency surgical settings is associated with methodological and practical challenges. This study explored patients' and clinicians' perspectives associated with the conduct of an RCT comparing laparoscopic and open colorectal surgery in the acute setting. METHODS: All eligible patients screened and enrolled for the 'Laparoscopic versus open colorectal surgery in the acute setting (LaCeS)' multicentre, randomized clinical feasibility trial in five UK NHS Trusts were invited to respond to a survey. Patients and healthcare professionals were also invited to take part in semi-structured interviews. Survey and interviews explored the acceptability of the feasibility trial. Interviews were audio recorded, transcribed verbatim, and analysed using thematic analysis. Survey data were analysed descriptively to assess patient views of the trial and intervention. RESULTS: Out of 72 patients enrolled for the LaCeS RCT, survey data were collected from 28 patients (38.9 per cent), and interviews were conducted with 16 patients and 14 healthcare professionals. Thirteen out of 28 patients (46 per cent) had treatment preferences but these were not strong enough to deter participation. Twelve of the patients interviewed believed that their surgeon preferred laparoscopic surgery, but this did not deter them from participating in the trial. Half of the surgeons interviewed expressed the view that laparoscopic surgery was of benefit in this setting, but recognized that the need for research evidence outweighed their personal treatment preferences. Eight of the 14 recruiters reported that the emergency setting affected recruitment, especially in centres with fewer recruiting surgeons. Interviewees reported that recruitment was helped significantly by using surgical trainees to consent patients. CONCLUSION: This study identified specific challenges for the LaCeS trial design to address and adds significant insights to our understanding of recruiting to emergency surgical trials more broadly.


Assuntos
Cirurgia Colorretal , Cirurgiões , Humanos , Pesquisa Qualitativa , Seleção de Pacientes , Atitude do Pessoal de Saúde
14.
Mar Pollut Bull ; 162: 111830, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33234258

RESUMO

Most contemporary coral reefs live under both global (e.g. warming and acidification) and local (e.g. overfishing, pollution) stressors, which may synergistically undermine their resilience to thermal bleaching and diseases. While heavy metal toxicity in reefs has been well characterized, information on corals recovery from acute contamination is lacking. We studied for 42 days the ability of the coral Stylophora pistillata from the Gulf of Aqaba (northern Red Sea) to recover from a short (3 days) and prolonged (14 days) copper (Cu) contamination (1 µg L-1), after 11 ('Exp3/D11') and 28 ('Exp14/D28') days of depuration, respectively. Cu caused a decrease in chlorophyll content after 3 days, and in net photosynthesis (Pn) after 14 and 42 days. 'Exp14/D28' showed successful recovery based on Pn and relative electron transport rate, as opposed to 'Exp3/D11'. Results suggest the depuration time may be of greater importance than the exposure period to recover from such contamination.


Assuntos
Antozoários , Animais , Conservação dos Recursos Naturais , Cobre/toxicidade , Recifes de Corais , Pesqueiros , Oceano Índico
15.
Am J Transplant ; 9(9): 2166-71, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19681829

RESUMO

Fifty-eight solid organ transplant recipients with zygomycosis were studied to assess the presentation, radiographic characteristics, risks for extra-pulmonary dissemination and mortality of pulmonary zygomycosis. Pulmonary zygomycosis was documented in 31 patients (53%) and developed a median of 5.5 months (interquartile range, 2-11 months) posttransplantation. In all, 74.2% (23/31) of the patients had zygomycosis limited to the lungs and 25.8% (8/31) had lung disease as part of disseminated zygomycosis; cutaneous/soft tissue (50%, 4/8) was the most common site of dissemination. Pulmonary disease presented most frequently as consolidation/mass lesions (29.0%), nodules (25.8%) and cavities (22.6%). Patients with disseminated disease were more likely to have Mycocladus corymbifer as the causative pathogen. The mortality rate at 90 days after the treatment was 45.2%. In summary, pulmonary zygomycosis is the most common manifestation in solid organ transplant recipients with zygomycosis, and disseminated disease often involves the cutaneous/soft tissue sites but not the brain.


Assuntos
Pneumopatias Fúngicas/tratamento farmacológico , Pneumopatias Fúngicas/etiologia , Transplante de Órgãos/efeitos adversos , Zigomicose/tratamento farmacológico , Zigomicose/etiologia , Adulto , Idoso , Antifúngicos/uso terapêutico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/tratamento farmacológico , Fatores de Tempo , Resultado do Tratamento
16.
BMC Infect Dis ; 7: 7, 2007 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-17316450

RESUMO

BACKGROUND: Nitric oxide (NO*) plays a pivotal role as a leishmanicidal agent in mouse macrophages. NO* resistant Escherichia coli and Mycobacterium tuberculosis have been associated with a severe outcome of these diseases. METHODS: In this study we evaluated the in vitro toxicity of nitric oxide for the promastigote stages of Leishmania (Viannia) braziliensis and Leishmania (Leishmania) amazonensis parasites, and the infectivity of the amastigote stage for human macrophages. Parasites were isolated from patients with cutaneous, mucosal or disseminated leishmaniasis, and NO* resistance was correlated with clinical presentation. RESULTS: Seventeen isolates of L. (L.) amazonensis or L. (V.) braziliensis promastigotes were killed by up to 8 mM of more of NaNO2 (pH 5.0) and therefore were defined as nitric oxide-susceptible. In contrast, eleven isolates that survived exposure to 16 mM NaNO2 were defined as nitric oxide-resistant. Patients infected with nitric oxide-resistant Leishmania had significantly larger lesions than patients infected with nitric oxide-susceptible isolates. Furthermore, nitric oxide-resistant L. (L.) amazonensis and L. (V.) braziliensis multiplied significantly better in human macrophages than nitric oxide-susceptible isolates. CONCLUSION: These data suggest that nitric oxide-resistance of Leishmania isolates confers a survival benefit for the parasites inside the macrophage, and possibly exacerbates the clinical course of human leishmaniasis.


Assuntos
Leishmania braziliensis/efeitos dos fármacos , Leishmania/efeitos dos fármacos , Leishmaniose/parasitologia , Doadores de Óxido Nítrico/farmacologia , Óxido Nítrico/farmacologia , Nitrito de Sódio/farmacologia , Adolescente , Adulto , Animais , Humanos , Leishmania/isolamento & purificação , Leishmania braziliensis/isolamento & purificação , Leishmaniose Cutânea/parasitologia , Leishmaniose Tegumentar Difusa/parasitologia , Leishmaniose Mucocutânea/parasitologia , Macrófagos/imunologia , Macrófagos/parasitologia
17.
J Pers Disord ; 31(4): 567-576, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-27749185

RESUMO

Previous studies found high prevalence rates of personality disorders (PDs) in patients with hypochondriasis; however, assessment was often based only on questionnaires. In the current study, a sample of 68 patients with hypochondriasis was compared to 31 patients with panic disorder and to 94 healthy controls. Participants were investigated with the Structured Clinical Interview for DSM-IV Personality Disorders questionnaire (SCID-II questionnaire) and the SCID-II interview. Based on the cut-off scores of the SCID-II questionnaire, we found a prevalence rate of 45.6% for PD in patients with hypochondriasis. In comparison to healthy controls, patients with hypochondriasis showed characteristics of paranoid, borderline, avoidant, and dependent PDs in the dimensional assessment significantly more often. However, no significant differences were found between the clinical samples. Based on the SCID-II interview, only 2.9% of the patients with hypochondriasis fulfilled the criteria for a PD. These results suggest that PDs are not a specific characteristic of hypochondriasis.


Assuntos
Hipocondríase/psicologia , Transtorno de Pânico/psicologia , Adulto , Feminino , Voluntários Saudáveis , Humanos , Masculino , Inquéritos e Questionários
18.
J Consult Clin Psychol ; 85(10): 1012-1017, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28956951

RESUMO

OBJECTIVE: Cognitive-behavioral therapy (CBT) has been shown to be effective in treating hypochondriasis. However, there are doubts regarding the long-term effectiveness of CBT for hypochondriasis, in particular for follow-up periods longer than 1 year. The aim of the present study was to evaluate the long-term effectiveness of cognitive therapy (CT) and exposure therapy (ET) for the treatment of hypochondriasis. METHOD: Seventy-five patients with a diagnosis of hypochondriasis who were previously treated with CT or ET were contacted 3 years after treatment. Fifty (67%) patients participated and were interviewed by an independent and blinded diagnostician using standardized interviews. RESULTS: We found further improvements after therapy in primary outcome measures (d = .37), general functioning (d = .38), and reduced doctor visits (d = .30) during the naturalistic follow-up period. At the 3-year follow-up, 72% of the patients no longer fulfilled the diagnosis of hypochondriasis. Based on the main outcome measure, we found response rates of 76% and remission rates of 68%. At follow-up, only 4% of patients were taking antidepressant medication. Additional psychological treatment was utilized by 18% of the patients during the follow-up period (only 8% because of health anxiety). We found no overall differences between CT and ET. Only a trend for a greater deterioration rate in CT (13%) in comparison to ET (0%) was found. CONCLUSIONS: Our results suggest that ⅔ of the patients with hypochondriasis were remitted in the long term. Thus, remission rates after CBT were twice as high as in untreated samples. (PsycINFO Database Record


Assuntos
Terapia Cognitivo-Comportamental/métodos , Hipocondríase/terapia , Terapia Implosiva/métodos , Adulto , Feminino , Seguimentos , Humanos , Hipocondríase/psicologia , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
19.
J Behav Ther Exp Psychiatry ; 50: 139-46, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26204567

RESUMO

BACKGROUND AND OBJECTIVES: Previous studies using modified versions of the Affect Misattribution Procedure (AMP; Payne, Cheng, Govorun, & Stewart, 2005) have revealed that there is an implicit negative evaluation bias of illness-related information in patients with hypochondriasis (HYP), which might be a maintaining feature of HYP. However, there is no evidence on whether this bias might be targeted successfully by effective treatments, such as exposure therapy (ET) or cognitive therapy (CT). This is the first study to examine the change in negative implicit evaluations in a randomized controlled trial, including individual CT and ET, compared to a wait-list control group for HYP. METHODS: An AMP with illness, symptom and neutral primes was used in 70 patients with HYP before and after treatment (wait-list respectively). RESULTS: There was no significant change in negative implicit affective evaluations in both CT and ET, compared to wait-list. However, comparisons between the two active treatments revealed an interaction effect, that only for CT were the affective reactions on illness-as well as symptom-related prime trials (but not neutral primes) significantly more positive at post-compared to pre-treatment. In CT but not in ET, the reduction of implicit negative evaluation bias regarding symptom-related primes was significantly related to the reduction of self-reported health anxiety. LIMITATIONS: The small subsample sizes for CT and ET, in comparison to wait-list, prohibit the detection of smaller effects. CONCLUSIONS: Formal cognitive restructuring is necessary for reducing implicit negative evaluation bias in HYP, but the latter is not a prerequisite for reducing health anxiety. Thus, the importance of the negative implicit evaluation bias for the maintenance of HYP remains questionable.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Hipocondríase/terapia , Terapia Implosiva/métodos , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
20.
J Anxiety Disord ; 34: 1-7, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26093823

RESUMO

Dysfunctional evaluations of somatic symptoms are considered a central factor in maintaining hypochondriasis. The aim of the current study was to investigate whether exposure therapy (ET) without cognitive restructuring is sufficient to change dysfunctional evaluations of somatic symptoms. The current study was based on a randomized controlled trial and compared patients with hypochondriasis (N=73) receiving ET or cognitive therapy (CT) to a wait list (WL) control group. In both the ET and CT groups, dysfunctional symptom evaluations changed significantly compared with the WL group. No differences between the ET and CT groups emerged. The relationship between the treatment condition (active treatment vs. WL) and reductions in health anxiety was mediated by changes in somatic symptom evaluations only in a specific card sorting procedure. We conclude that addressing dysfunctional symptom evaluations is a necessary precondition for the effective treatment of hypochondriasis. However, the results indicate that ET and CT appear to change those processes to a similar degree.


Assuntos
Hipocondríase/terapia , Terapia Implosiva/métodos , Adulto , Análise de Variância , Transtornos de Ansiedade/terapia , Atitude Frente a Saúde , Terapia Cognitivo-Comportamental/métodos , Feminino , Humanos , Hipocondríase/psicologia , Masculino , Escalas de Graduação Psiquiátrica , Psicoterapia de Grupo/métodos , Resultado do Tratamento
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