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1.
Hum Brain Mapp ; 45(1): e26553, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38224541

RESUMO

22q11.2 deletion syndrome (22q11DS) is the most frequently occurring microdeletion in humans. It is associated with a significant impact on brain structure, including prominent reductions in gray matter volume (GMV), and neuropsychiatric manifestations, including cognitive impairment and psychosis. It is unclear whether GMV alterations in 22q11DS occur according to distinct structural patterns. Then, 783 participants (470 with 22q11DS: 51% females, mean age [SD] 18.2 [9.2]; and 313 typically developing [TD] controls: 46% females, mean age 18.0 [8.6]) from 13 datasets were included in the present study. We segmented structural T1-weighted brain MRI scans and extracted GMV images, which were then utilized in a novel source-based morphometry (SBM) pipeline (SS-Detect) to generate structural brain patterns (SBPs) that capture co-varying GMV. We investigated the impact of the 22q11.2 deletion, deletion size, intelligence quotient, and psychosis on the SBPs. Seventeen GMV-SBPs were derived, which provided spatial patterns of GMV covariance associated with a quantitative metric (i.e., loading score) for analysis. Patterns of topographically widespread differences in GMV covariance, including the cerebellum, discriminated individuals with 22q11DS from healthy controls. The spatial extents of the SBPs that revealed disparities between individuals with 22q11DS and controls were consistent with the findings of the univariate voxel-based morphometry analysis. Larger deletion size was associated with significantly lower GMV in frontal and occipital SBPs; however, history of psychosis did not show a strong relationship with these covariance patterns. 22q11DS is associated with distinct structural abnormalities captured by topographical GMV covariance patterns that include the cerebellum. Findings indicate that structural anomalies in 22q11DS manifest in a nonrandom manner and in distinct covarying anatomical patterns, rather than a diffuse global process. These SBP abnormalities converge with previously reported cortical surface area abnormalities, suggesting disturbances of early neurodevelopment as the most likely underlying mechanism.


Assuntos
Síndrome de DiGeorge , Transtornos Psicóticos , Feminino , Humanos , Adolescente , Masculino , Síndrome de DiGeorge/diagnóstico por imagem , Imageamento por Ressonância Magnética , Encéfalo/diagnóstico por imagem , Transtornos Psicóticos/complicações , Substância Cinzenta/diagnóstico por imagem
2.
Eur J Pediatr ; 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38691129

RESUMO

Asthma during pregnancy is associated with a range of adverse perinatal outcomes. It is also linked to increased rates of neurodevelopmental conditions in the offspring. We aimed to assess whether fractional exhaled nitric oxide (FENO)-based asthma management during pregnancy improves child developmental and behavioural outcomes compared to usual care. The Breathing for Life Trial was a randomised controlled trial that compared FENO-based asthma management during pregnancy to usual care. Participants were invited to the developmental follow-up, the Breathing for Life Trial - Infant Development study, which followed up infants at 6 weeks, 6 months and 12 months. The primary outcomes were measured in infants at 12 months using the Bayley-III: Cognitive, Language and Motor composite scores. Secondary outcomes included Bayley-III social-emotional and adaptive behaviour scores, autism likelihood and sensory and temperament outcomes. The exposure of interest was the randomised intervention group. Two hundred and twenty-two infants and their 217 participating mothers were recruited to the follow-up; 107 mothers were in the intervention group and 113 were in the control group. There was no evidence of an intervention effect for the primary outcomes: Bayley-III cognitive (mean = 108.9 control, 108.5 intervention, p = 0.93), language (mean = 95.9 control, 95.6 intervention, p = 0.87) and motor composite scores (mean = 97.2 control, 97.9 intervention, p = 0.25). Mean scores for secondary outcomes were also similar among infants born to control and FENO group mothers, with few results reaching p < 0.05. CONCLUSION:  In this sample, FENO-guided asthma treatment during pregnancy did not improve infant developmental outcomes in the first year of life. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: ACTRN12613000202763. WHAT IS KNOWN: • Maternal asthma during pregnancy has been associated with increased rates of neurodevelopmental conditions in offspring, including intellectual disability and autism. WHAT IS NEW: • This is the first study to examine how managing asthma during pregnancy via a FENO-guided algorithm or usual care affects infant developmental and behavioural outcomes. While the results of the study showed no impact of the intervention, and therefore do not support the integration of FENO-based management of asthma in antenatal settings for optimal infant development, they do send a positive message about the implications of active asthma management during pregnancy on infant developmental outcomes.

3.
Am J Hum Genet ; 106(1): 26-40, 2020 01 02.
Artigo em Inglês | MEDLINE | ID: mdl-31870554

RESUMO

The 22q11.2 deletion syndrome (22q11.2DS) results from non-allelic homologous recombination between low-copy repeats termed LCR22. About 60%-70% of individuals with the typical 3 megabase (Mb) deletion from LCR22A-D have congenital heart disease, mostly of the conotruncal type (CTD), whereas others have normal cardiac anatomy. In this study, we tested whether variants in the hemizygous LCR22A-D region are associated with risk for CTDs on the basis of the sequence of the 22q11.2 region from 1,053 22q11.2DS individuals. We found a significant association (FDR p < 0.05) of the CTD subset with 62 common variants in a single linkage disequilibrium (LD) block in a 350 kb interval harboring CRKL. A total of 45 of the 62 variants were associated with increased risk for CTDs (odds ratio [OR) ranges: 1.64-4.75). Associations of four variants were replicated in a meta-analysis of three genome-wide association studies of CTDs in affected individuals without 22q11.2DS. One of the replicated variants, rs178252, is located in an open chromatin region and resides in the double-elite enhancer, GH22J020947, that is predicted to regulate CRKL (CRK-like proto-oncogene, cytoplasmic adaptor) expression. Approximately 23% of patients with nested LCR22C-D deletions have CTDs, and inactivation of Crkl in mice causes CTDs, thus implicating this gene as a modifier. Rs178252 and rs6004160 are expression quantitative trait loci (eQTLs) of CRKL. Furthermore, set-based tests identified an enhancer that is predicted to target CRKL and is significantly associated with CTD risk (GH22J020946, sequence kernal association test (SKAT) p = 7.21 × 10-5) in the 22q11.2DS cohort. These findings suggest that variance in CTD penetrance in the 22q11.2DS population can be explained in part by variants affecting CRKL expression.


Assuntos
Deleção Cromossômica , Cromossomos Humanos Par 22/genética , Cardiopatias Congênitas/genética , Polimorfismo de Nucleotídeo Único , Estudos de Casos e Controles , Estudos de Coortes , Feminino , Estudo de Associação Genômica Ampla , Cardiopatias Congênitas/patologia , Humanos , Desequilíbrio de Ligação , Masculino , Fenótipo , Proto-Oncogene Mas , Duplicações Segmentares Genômicas
4.
Trop Med Int Health ; 28(5): 391-400, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36871194

RESUMO

OBJECTIVE: Optimising antibiotic use is important to limit increasing antibiotic resistance. In rural Burkina Faso, over-the-counter dispensing of antibiotics in community pharmacies and non-licensed medicine retail outlets facilitates self-medication. We investigated its extent, reasons and dispensing patterns. METHODS: In an exploratory mixed-method design conducted between October 2020 and December 2021, this study first explored illness perceptions, the range of healthcare providers in communities, antibiotics knowledge and reasons for seeking healthcare outside healthcare facilities. Second, frequencies of illness and healthcare utilisation in the last 3 months were quantitatively measured. RESULTS: Participants distinguished between natural and magico-religious illnesses, according to origins. For illnesses considered to be 'natural', healthcare was mainly sought at healthcare facilities, private pharmacies and informal drug outlets. For illnesses considered as magico-religious, traditional healers were mainly visited. Antibiotics were perceived in the community as medicines similar to painkillers. Healthcare-seeking outside healthcare facilities was reported by 660/1973 (33.5%) participants reporting symptoms, including 315 (47.7%) to informal vendors. Healthcare seeking outside facilities was less common for 0-4-year-olds (58/534, 10.9% vs. 379/850, 44.1% for ≥5-year-olds) and decreased with improving socio-economic status (108/237, 45.6% in the lowest quintile; 96/418, 23.0% in the highest). Reported reasons included financial limitation, and also proximity to informal drug vendors, long waiting times at healthcare facilities, and health professionals' non-empathetic attitudes towards their patients. CONCLUSION: This study highlights the need to facilitate and promote access to healthcare facilities through universal health insurance and patient-centred care including reducing patients' waiting time. Furthermore, community-level antibiotic stewardship programmes should include community pharmacies and informal vendors.


Assuntos
Antibacterianos , Aceitação pelo Paciente de Cuidados de Saúde , Humanos , Pré-Escolar , Antibacterianos/uso terapêutico , Burkina Faso , Automedicação , Atitude do Pessoal de Saúde
5.
Clin Infect Dis ; 75(1): e991-e999, 2022 08 24.
Artigo em Inglês | MEDLINE | ID: mdl-35136960

RESUMO

BACKGROUND: There is limited evidence to date about changes to sexual and reproductive health (SRH) during the initial wave of coronavirus disease 2019 (COVID-19). To address this gap, our team organized a multicountry, cross-sectional online survey as part of a global consortium. METHODS: Consortium research teams conducted online surveys in 30 countries. Sampling methods included convenience, online panels, and population-representative. Primary outcomes included sexual behaviors, partner violence, and SRH service use, and we compared 3 months prior to and during policy measures to mitigate COVID-19. We conducted meta-analyses for primary outcomes and graded the certainty of the evidence. RESULTS: Among 4546 respondents with casual partners, condom use stayed the same for 3374 (74.4%), and 640 (14.1%) reported a decline. Fewer respondents reported physical or sexual partner violence during COVID-19 measures (1063 of 15 144, 7.0%) compared to before COVID-19 measures (1469 of 15 887, 9.3%). COVID-19 measures impeded access to condoms (933 of 10 790, 8.7%), contraceptives (610 of 8175, 7.5%), and human immunodeficiency virus/sexually transmitted infection (HIV/STI) testing (750 of 1965, 30.7%). Pooled estimates from meta-analysis indicate that during COVID-19 measures, 32.3% (95% confidence interval [CI], 23.9%-42.1%) of people needing HIV/STI testing had hindered access, 4.4% (95% CI, 3.4%-5.4%) experienced partner violence, and 5.8% (95% CI, 5.4%-8.2%) decreased casual partner condom use (moderate certainty of evidence for each outcome). Meta-analysis findings were robust in sensitivity analyses that examined country income level, sample size, and sampling strategy. CONCLUSIONS: Open science methods are feasible to organize research studies as part of emergency responses. The initial COVID-19 wave impacted SRH behaviors and access to services across diverse global settings.


Assuntos
COVID-19 , Infecções por HIV , Saúde Sexual , Infecções Sexualmente Transmissíveis , Adulto , Preservativos , Estudos Transversais , Humanos , Saúde Reprodutiva , Comportamento Sexual , Parceiros Sexuais , Infecções Sexualmente Transmissíveis/epidemiologia
6.
AIDS Behav ; 26(6): 1905-1922, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34977957

RESUMO

In March 2020, the South African government imposed a lockdown to control COVID-19 transmission. Lockdown may affect people living with HIV's (PLWH) antiretroviral therapy (ART) adherence. Data from a cluster randomised control trial was collected from 152 PLWH in Cape Town sub-districts from October 2019-March 2020 when the lockdown halted collection. Subsequently, 83 PLWH were followed-up in June-July 2020. Random effects models were used to analyse: (1) changes between baseline and follow-up and (2) correlates of adherence during lockdown. At follow-up, there was an increase in the odds of being below the poverty line and the odds of experiencing violence decreased. Measures for well-being, household functioning, stigma and HIV competency improved. Violence, depression, food insecurity, and stigma were associated with poorer ART adherence; higher well-being scores were associated with better adherence. During lockdown, governments need to ensure financial support, access to (mental) health services, and services for those experiencing violence.Clinical Trial Number: Pan African Clinical Trial Registry, PACTR201906476052236. Registered on 24 June 2019.


RESUMEN: En marzo de 2020, el gobierno sudafricano impuso un confinamiento generalizado para controlar la transmisión del COVID-19. Estas medidas pueden afectar la adherencia a la terapia antirretroviral de las personas con VIH. A partir de un ensayo aleatorio grupal se recopilan datos de 152 personas con VIH en los sub-distritos de Ciudad del Cabo entre octubre de 2019 y marzo de 2020 cuando el confinamiento detuvo la recopilación. Posteriormente, se realizó un seguimiento de 83 pacientes entre junio y julio de 2020. Se utilizaron modelos de efectos aleatorios para analizar: 1) los cambios en las variables entre la línea de base y de seguimiento; 2) covariables de adhesión al tratamiento. En el seguimiento se observa que aumentaron las probabilidades de estar por debajo del umbral de pobreza y disminuyeron las probabilidades de sufrir violencia. Las medidas de bienestar, funcionamiento del hogar, estigma e idoneidad en materia de VIH mejoraron entre la línea base y el seguimiento. Por otro lado, la violencia, la depresión, la inseguridad alimentaria y el estigma se asocian a una menor adherencia al tratamiento antirretroviral, mientras la mejora del bienestar se asocia a una mayor adherencia al tratamiento. De tal manera, se observa que durante situaciones de emergencia que requieran de confinamientos es recomendable que los gobiernos garanticen apoyo financiero, atención a la salud física y mental de manera continua, así como servicios especializados hacia quienes sufren violencia.


Assuntos
COVID-19 , Infecções por HIV , Antirretrovirais/uso terapêutico , COVID-19/epidemiologia , Controle de Doenças Transmissíveis , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Humanos , Adesão à Medicação , África do Sul/epidemiologia
7.
J Asthma ; 59(10): 2091-2099, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34641750

RESUMO

OBJECTIVE: Maternal asthma often complicates pregnancy and is linked with poorer quality of life. Additionally, individuals with asthma are at an increased risk of depression and anxiety. We examined whether asthma during pregnancy is related to parenting stress in the first year postpartum and if this relationship varies with level of asthma control. METHODS: This cohort survey-based study included mothers with (n = 157) and without (n = 79) asthma. Mothers with asthma participated in this study following participation in a randomized controlled trial of a novel asthma management strategy during pregnancy. Mothers completed the Parenting Stress Index - Short Form during the first 12 months postpartum. Mothers with asthma also completed the Asthma Control Questionnaire. RESULTS: Parenting stress did not differ between mothers with and without asthma. Additionally, for mothers with asthma, there were no differences in levels of parenting stress based on asthma control. CONCLUSIONS: This study suggests that mothers with asthma are not at an increased risk for excessive parenting stress. However, due to response and sampling bias, levels of parenting stress in asthmatic mothers may be underreported in our sample.


Assuntos
Asma , Poder Familiar , Asma/epidemiologia , Feminino , Humanos , Período Pós-Parto , Gravidez , Qualidade de Vida , Estresse Psicológico/complicações , Estresse Psicológico/epidemiologia
8.
BMC Public Health ; 22(1): 1108, 2022 06 03.
Artigo em Inglês | MEDLINE | ID: mdl-35658847

RESUMO

AIM: To identify the impact of COVID-19 measures on sexual behaviors and sexual satisfaction in Luxembourg residents. METHODS: We conducted a cross-sectional online survey of adults (> 18 years of age) residing in Luxembourg, while COVID-19 restrictions were in place. The survey was available from January 15 to February 12, 2021 in four languages (French, German, English and Portuguese). Survey questions focused on masturbation, cuddling, condom use, sex frequency, sexting, cybersex, watching porn, and sexual satisfaction. RESULTS: 557 volunteers completed the survey (35.5% men, 64.3% women). Sexual satisfaction and sexual problems variables were assessed on 4-point Likert scales (0 = not at all/never to 3 = very/often). Sexual problems increased during the COVID-19 measures while sexual satisfaction decreased compared to before the introduction of COVID-19 restrictions (assessed retrospectively). Factors associated with increased odds of sexual satisfaction included having a steady relationship before COVID-19 restrictions, engaging in sexting, reporting good mental health and not altering alcohol intake. CONCLUSIONS: The context of the COVID-19 pandemic and the measures implemented in Luxembourg affected sexual behaviors and sexual satisfaction. Sexual and reproductive health care centers and health professionals in general should take these results into consideration when providing care. Recommendations on the importance of sexual health for general wellbeing and behaviors associated with sexual satisfaction should be offered and possibilities to experience sexuality while reducing contamination risks be discussed.


Assuntos
COVID-19 , Saúde Sexual , Adulto , COVID-19/epidemiologia , Estudos Transversais , Feminino , Inquéritos Epidemiológicos , Humanos , Luxemburgo/epidemiologia , Masculino , Orgasmo , Pandemias , Saúde Reprodutiva , Estudos Retrospectivos , Comportamento Sexual
9.
Neuropsychol Rehabil ; 32(9): 2429-2463, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34078232

RESUMO

In acquired brain injury (ABI), social cognition is a contributing factor to the changes observed in functional outcomes. However, progress in assessing and understanding social cognitive impairments is limited by a lack of consistency in terminology and the proliferation in assessment tools, leading to a lack of consensus on what should be assessed and how. This review aims to examine the domains of social cognition commonly assessed in ABI, the assessment tools used, and the appropriateness of these tools for researchers and clinicians. Using the Arksey and O'Malley scoping review methodology, 367 articles reporting results from 10,930 people with an ABI met our inclusion criteria. The five most commonly assessed domains of social cognition were emotion perception, theory of mind, social communication, identity recognition and empathy. The most commonly used measure of these domains included: the Ekman and Friesen photo series, Faux Pas Recognition Test, La Trobe Communication Questionnaire, Benton Facial Recognition Test and the Interpersonal Reactivity Index. There are well-validated measures readily available that are underused in favour of non-standardized measures clinically or the development of one's own measure in research. The appropriateness of the identified measure for research and clinical use was discussed, including suggestions for future research.


Assuntos
Lesões Encefálicas , Disfunção Cognitiva , Humanos , Cognição Social , Lesões Encefálicas/complicações , Lesões Encefálicas/psicologia , Emoções , Empatia , Cognição
10.
Aust N Z J Obstet Gynaecol ; 62(2): 241-249, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34570369

RESUMO

BACKGROUND: In Australia, using non-invasive prenatal testing (NIPT) to screen for fetal abnormalities is becoming more commonplace. However, there is a lack of standardised procedures surrounding pre-test counselling. This holds the potential for variability in pregnant people's experiences when undergoing NIPT, which subsequently may impact their ability to make informed decisions surrounding NIPT results. AIM: This study sought to characterise the experiences of Australian women undergoing NIPT, including perceptions of informed choice, counselling experiences and decision to undergo NIPT. MATERIALS AND METHODS: Australian women who had been recently pregnant (n = 94) completed an online survey which assessed: their knowledge of and attitude toward NIPT; satisfaction with counselling; satisfaction with their decision; and decisional conflict to undergo NIPT. The survey also allowed participants to provide qualitative information about their counselling experience and reasons for undergoing NIPT. RESULTS: Overall, participants had good knowledge of and positive attitudes toward NIPT, experienced low decisional conflict and were overall satisfied with their counselling experience and decision to undergo NIPT. However, some participants expressed dissatisfaction with the lack of information provided, and biased language, by counselling providers. The desire to be informed was the most frequent reason for undergoing NIPT. CONCLUSION: The provision of accurate and objective information in pre-test counselling is important to reduce decisional conflict and improve satisfaction with the decision to undergo NIPT. It is recommended counselling providers present pregnant people with neutral, objective, and accurate information at the time of pre-test counselling.


Assuntos
Emoções , Diagnóstico Pré-Natal , Austrália , Feminino , Humanos , Gravidez , Diagnóstico Pré-Natal/métodos , Inquéritos e Questionários
11.
J Viral Hepat ; 28(2): 268-278, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33051950

RESUMO

Despite the availability of effective direct-acting antiviral (DAA) treatments for Hepatitis C virus (HCV) infection, many people remain undiagnosed and untreated. We assessed the cost-effectiveness of a Médecins Sans Frontières (MSF) HCV screening and treatment programme within a primary health clinic in Karachi, Pakistan. A health state transition Markov model was developed to estimate the cost-effectiveness of the MSF programme. Programme cost and outcome data were analysed retrospectively. The incremental cost-effectiveness ratio (ICER) was calculated in terms of incremental cost (2016 US$) per disability-adjusted life year (DALY) averted from the provider's perspective over a lifetime horizon. The robustness of the model was evaluated using deterministic and probabilistic sensitivity analyses (PSA). The ICER for implementing testing and treatment compared to no programme was US$450/DALY averted, with 100% of PSA runs falling below the per capita Gross Domestic Product threshold for cost-effective interventions for Pakistan (US$1,422). The ICER increased to US$532/DALY averted assuming national HCV seroprevalence (5.5% versus 33% observed in the intervention). If the cost of liver disease care was included (adapted from resource use data from Cambodia which has similar GDP to Pakistan), the ICER dropped to US$148/DALY, while it became cost-saving if a recently negotiated reduced drug cost of $75/treatment course was assumed (versus $282 in base-case) in addition to cost of liver disease care. In conclusion, screening and DAA treatment for HCV infection are expected to be highly cost-effective in Pakistan, supporting the expansion of similar screening and treatment programmes across Pakistan.


Assuntos
Antivirais , Hepatite C Crônica , Antivirais/uso terapêutico , Análise Custo-Benefício , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/epidemiologia , Humanos , Paquistão , Atenção Primária à Saúde , Anos de Vida Ajustados por Qualidade de Vida , Estudos Retrospectivos , Estudos Soroepidemiológicos
12.
Mol Psychiatry ; 25(11): 2818-2831, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-31358905

RESUMO

22q11.2 deletion syndrome (22q11DS)-a neurodevelopmental condition caused by a hemizygous deletion on chromosome 22-is associated with an elevated risk of psychosis and other developmental brain disorders. Prior single-site diffusion magnetic resonance imaging (dMRI) studies have reported altered white matter (WM) microstructure in 22q11DS, but small samples and variable methods have led to contradictory results. Here we present the largest study ever conducted of dMRI-derived measures of WM microstructure in 22q11DS (334 22q11.2 deletion carriers and 260 healthy age- and sex-matched controls; age range 6-52 years). Using harmonization protocols developed by the ENIGMA-DTI working group, we identified widespread reductions in mean, axial and radial diffusivities in 22q11DS, most pronounced in regions with major cortico-cortical and cortico-thalamic fibers: the corona radiata, corpus callosum, superior longitudinal fasciculus, posterior thalamic radiations, and sagittal stratum (Cohen's d's ranging from -0.9 to -1.3). Only the posterior limb of the internal capsule (IC), comprised primarily of corticofugal fibers, showed higher axial diffusivity in 22q11DS. 22q11DS patients showed higher mean fractional anisotropy (FA) in callosal and projection fibers (IC and corona radiata) relative to controls, but lower FA than controls in regions with predominantly association fibers. Psychotic illness in 22q11DS was associated with more substantial diffusivity reductions in multiple regions. Overall, these findings indicate large effects of the 22q11.2 deletion on WM microstructure, especially in major cortico-cortical connections. Taken together with findings from animal models, this pattern of abnormalities may reflect disrupted neurogenesis of projection neurons in outer cortical layers.


Assuntos
Síndrome de DiGeorge/diagnóstico por imagem , Síndrome de DiGeorge/patologia , Imagem de Difusão por Ressonância Magnética , Substância Branca/diagnóstico por imagem , Substância Branca/patologia , Adolescente , Adulto , Anisotropia , Criança , Síndrome de DiGeorge/genética , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
13.
Mol Psychiatry ; 25(8): 1822-1834, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-29895892

RESUMO

The 22q11.2 deletion (22q11DS) is a common chromosomal microdeletion and a potent risk factor for psychotic illness. Prior studies reported widespread cortical changes in 22q11DS, but were generally underpowered to characterize neuroanatomic abnormalities associated with psychosis in 22q11DS, and/or neuroanatomic effects of variability in deletion size. To address these issues, we developed the ENIGMA (Enhancing Neuro Imaging Genetics Through Meta-Analysis) 22q11.2 Working Group, representing the largest analysis of brain structural alterations in 22q11DS to date. The imaging data were collected from 10 centers worldwide, including 474 subjects with 22q11DS (age = 18.2 ± 8.6; 46.9% female) and 315 typically developing, matched controls (age = 18.0 ± 9.2; 45.9% female). Compared to controls, 22q11DS individuals showed thicker cortical gray matter overall (left/right hemispheres: Cohen's d = 0.61/0.65), but focal thickness reduction in temporal and cingulate cortex. Cortical surface area (SA), however, showed pervasive reductions in 22q11DS (left/right hemispheres: d = -1.01/-1.02). 22q11DS cases vs. controls were classified with 93.8% accuracy based on these neuroanatomic patterns. Comparison of 22q11DS-psychosis to idiopathic schizophrenia (ENIGMA-Schizophrenia Working Group) revealed significant convergence of affected brain regions, particularly in fronto-temporal cortex. Finally, cortical SA was significantly greater in 22q11DS cases with smaller 1.5 Mb deletions, relative to those with typical 3 Mb deletions. We found a robust neuroanatomic signature of 22q11DS, and the first evidence that deletion size impacts brain structure. Psychotic illness in this highly penetrant deletion was associated with similar neuroanatomic abnormalities to idiopathic schizophrenia. These consistent cross-site findings highlight the homogeneity of this single genetic etiology, and support the suitability of 22q11DS as a biological model of schizophrenia.


Assuntos
Córtex Cerebral/patologia , Deleção Cromossômica , Síndrome de DiGeorge/genética , Síndrome de DiGeorge/patologia , Adolescente , Adulto , Feminino , Substância Cinzenta/patologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Transtornos Psicóticos/genética , Adulto Jovem
14.
Child Care Health Dev ; 47(1): 47-56, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-32881020

RESUMO

BACKGROUND: Early postnatal psychoeducation intervention programmes can support new parents in the adjustment to parenthood. However, most psychoeducation programmes focus on pregnancy and the birth and fail to deliver relevant and age-specific information to new parents about what to expect in the postpartum period. Learning more about this intense period in a new parent's life will facilitate a healthy transition to parenthood. Considering the needs of time-poor but tech-savvy new parents, it is also necessary to rethink the delivery methods of such information to maximize impact. METHOD: Two panels of experts in perinatal mental health (eight professionals and eight parents with lived experience) participated in a Delphi consensus study to establish what topics of information are most important for parents in the first postnatal year. RESULTS: A total of 89 topics of information were endorsed by at least 80% of both panels as Essential or Good to Know information for new parents. The topics were grouped under the following themes: sleep, attachment, co-parenting, parental mental health, developmental milestones, feeding, social and community support, safety and health. CONCLUSIONS: This study established consensus between perinatal experts and parents with lived experience in order to produce relevant m-health psychoeducation for parents in the first postnatal year. The study findings will inform the development of perinatal m-health psychoeducation programmes.


Assuntos
Poder Familiar , Pais , Consenso , Técnica Delphi , Feminino , Humanos , Período Pós-Parto , Gravidez
15.
Liver Int ; 40(10): 2356-2366, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32475010

RESUMO

BACKGROUND & AIMS: In 2016, Médecins Sans Frontières established the first general population Hepatitis C virus (HCV) screening and treatment site in Cambodia, offering free direct-acting antiviral (DAA) treatment. This study analysed the cost-effectiveness of this intervention. METHODS: Costs, quality adjusted life years (QALYs) and cost-effectiveness of the intervention were projected with a Markov model over a lifetime horizon, discounted at 3%/year. Patient-level resource-use and outcome data, treatment costs, costs of HCV-related healthcare and EQ-5D-5L health states were collected from an observational cohort study evaluating the effectiveness of DAA treatment under full and simplified models of care compared to no treatment; other model parameters were derived from literature. Incremental cost-effectiveness ratios (cost/QALY gained) were compared to an opportunity cost-based willingness-to-pay threshold for Cambodia ($248/QALY). RESULTS: The total cost of testing and treatment per patient for the full model of care was $925(IQR $668-1631), reducing to $376(IQR $344-422) for the simplified model of care. EQ-5D-5L values varied by fibrosis stage: decompensated cirrhosis had the lowest value, values increased during and following treatment. The simplified model of care was cost saving compared to no treatment, while the full model of care, although cost-effective compared to no treatment ($187/QALY), cost an additional $14 485/QALY compared to the simplified model, above the willingness-to-pay threshold for Cambodia. This result is robust to variation in parameters. CONCLUSIONS: The simplified model of care was cost saving compared to no treatment, emphasizing the importance of simplifying pathways of care for improving access to HCV treatment in low-resource settings.


Assuntos
Hepatite C Crônica , Antivirais/uso terapêutico , Camboja , Análise Custo-Benefício , Hepatite C Crônica/tratamento farmacológico , Humanos , Anos de Vida Ajustados por Qualidade de Vida
16.
J Asthma ; 57(8): 829-841, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-31148493

RESUMO

Objective: We aimed to examine the prevalence and severity of psychological distress of women with asthma in both the prenatal and postnatal periods, and to determine whether asthmatic women with and without mental health problems differ in self-management, medications knowledge, and asthma symptoms.Methods: We assessed spirometry performance and asthma symptoms in 120 women (mean age 29.8 years) before 23 weeks gestation, as part of the Breathing for Life Trial (Trial ID: ACTRN12613000202763). Prenatal depression data was obtained from medical records. At 6 weeks postpartum, we assessed general health, self-reported asthma control, depression symptoms (with the Edinburgh Postnatal Depression Scale) and adaptive functioning (with the Achenbach System of Empirically Based Assessment scales).Results: Twenty percent of our sample reported having a current mental health diagnosis, 14% reported currently receiving mental health care, while 47% reported having received mental health care in the past (and may/may not have received a diagnosis). The sample scored high on the Aggressive Behavior, Avoidant Personality, and Attention Deficit/Hyperactivity scales. Poorer self-reported postnatal asthma control was strongly correlated with elevated somatic complaints, externalizing problems, antisocial personality problems, and greater withdrawal. Prenatal spirometry or asthma severity and control were largely not associated with measures of psychopathology.Conclusions: These findings indicate that pregnant women with asthma frequently report issues with psychopathology during the prenatal and postnatal periods, and that the subjective perception of asthma control may be more related to psychopathology than objective asthma measures. However, due to sample bias, these findings are likely to be understated.


Assuntos
Ansiedade/epidemiologia , Asma/psicologia , Depressão/epidemiologia , Saúde Materna/estatística & dados numéricos , Saúde Mental/estatística & dados numéricos , Complicações na Gravidez/psicologia , Adulto , Antiasmáticos/uso terapêutico , Ansiedade/diagnóstico , Ansiedade/psicologia , Asma/diagnóstico , Asma/tratamento farmacológico , Depressão/diagnóstico , Depressão/psicologia , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Período Pós-Parto , Gravidez , Complicações na Gravidez/tratamento farmacológico , Prevalência , Escalas de Graduação Psiquiátrica/estatística & dados numéricos , Autorrelato/estatística & dados numéricos , Autogestão/psicologia , Autogestão/estatística & dados numéricos , Índice de Gravidade de Doença , Espirometria , Adulto Jovem
17.
J Appl Res Intellect Disabil ; 33(3): 565-573, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31919950

RESUMO

BACKGROUND: 22q11.2 deletion syndrome (22q11DS) is the most common microdeletion syndrome. Parents of emerging adults with 22q11DS have an intense and ongoing involvement in their child's life. This study explores the lived experience of parents in relation to their child becoming independent and establishing intimate relationships. METHOD: Interpretative phenomenological analysis was used to explore the positive and negative experiences of five parents of emerging adults with 22q11DS. RESULTS: Supervised independence overarched four subordinate themes. These themes highlighted the difficulties experienced by parents attempting to relinquish control whilst still experiencing a need to keep their child safe as their child negotiated a complex stage of life. Parents waited for "signs" from their child before initiating conversations about intimate relationships. CONCLUSIONS: These findings provide insight into the lived experience of parenting a child through the transition into adulthood, providing a catalyst for further research with the aim of facilitating better services for families.


Assuntos
Filhos Adultos , Síndrome de DiGeorge/enfermagem , Desenvolvimento Humano , Relações Pais-Filho , Poder Familiar , Pais , Adolescente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pesquisa Qualitativa , Adulto Jovem
18.
J Antimicrob Chemother ; 74(Suppl 5): v5-v16, 2019 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-31782503

RESUMO

BACKGROUND: HCV disproportionately affects marginalized communities such as homeless populations and people who inject drugs (PWID), posing a challenge to traditional health services. The HepFriend initiative in London is a model of care utilizing HCV outreach screening and peer support to link vulnerable individuals to HCV treatment in secondary care. OBJECTIVES: To assess the cost-effectiveness of the HepFriend initiative from a healthcare provider perspective, compared with standard-of-care pathways (consisting of testing in primary care and other static locations, including drug treatment centres, and linkage to secondary care). METHODS: Cost-effectiveness analysis using a dynamic HCV transmission and disease progression model among PWID and those who have ceased injecting, including housing status and drug treatment service contact. The model was parameterized using London-specific surveillance and survey data, and primary intervention cost and effectiveness data (September 2015 to June 2018). Out of 461 individuals screened, 197 were identified as HCV RNA positive, 180 attended secondary care and 89 have commenced treatment to date. The incremental cost-effectiveness ratio (ICER) was determined using a 50 year time horizon. RESULTS: For a willingness-to-pay threshold of £20000 per QALY gained, the HepFriend initiative is cost-effective, with a mean ICER of £9408/QALY, and would become cost saving at 27% (£10525 per treatment) of the current drug list price. Results are robust to variations in intervention costs and model assumptions, and if treatment rates are doubled the intervention becomes more cost-effective (£8853/QALY). CONCLUSIONS: New models of care that undertake active case-finding with enhanced peer support to improve testing and treatment uptake amongst marginalized and vulnerable groups could be highly cost-effective and possibly cost saving.


Assuntos
Análise Custo-Benefício , Custos de Cuidados de Saúde/estatística & dados numéricos , Hepatite C Crônica/economia , Programas de Rastreamento/economia , Antivirais/uso terapêutico , Usuários de Drogas/estatística & dados numéricos , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/tratamento farmacológico , Humanos , Londres , Programas de Rastreamento/métodos , Modelos Teóricos , Marginalização Social , Reino Unido
19.
J Asthma ; 56(2): 130-141, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-29482387

RESUMO

OBJECTIVE: Maternal asthma during pregnancy is associated with a higher risk of negative perinatal outcomes. However, little is known about the direct effects of maternal asthma on infant cognitive development. We examined the evidence for an impact of maternal asthma during pregnancy on cognitive and behavioral development of the child. DATA SOURCES: We conducted a MEDLINE, PsychINFO, and manual search of the databases for all available studies until January 9th, 2018. STUDY SELECTIONS: Studies were deemed relevant if they included child cognitive and behavioral development as the outcome, with maternal asthma as the determinant of interest. RESULTS: Ten articles matched selection criteria. Some studies report that maternal asthma is associated with increased risk for autism and intellectual disability in children. However, these effects are small and are often eliminated when controlling for confounding variables. Other studies have found no association. The only prospective study found that well-managed asthma during pregnancy was not associated with negative developmental outcomes in children. CONCLUSIONS: The evidence suggests that the relationship between maternal asthma during pregnancy and poor developmental and behavioral outcomes of children is weak. Children of mothers with well-managed asthma during pregnancy have similar developmental trajectories to those born to healthy mothers. Prospective, longitudinal studies are needed to confirm these conclusions. Optimal asthma management is important in pregnancy as it may have longer term benefits for the health of the offspring. As the rate of asthma increases in the population, the implications of maternal asthma on child development will be of greater importance.


Assuntos
Asma , Comportamento Infantil , Desenvolvimento Infantil , Cognição , Complicações na Gravidez , Criança , Feminino , Humanos , Gravidez
20.
Am J Med Genet A ; 176(10): 2172-2181, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30289625

RESUMO

The 22q11.2 deletion syndrome is caused by non-allelic homologous recombination events during meiosis between low copy repeats (LCR22) termed A, B, C, and D. Most patients have a typical LCR22A-D (AD) deletion of 3 million base pairs (Mb). In this report, we evaluated IQ scores in 1,478 subjects with 22q11.2DS. The mean of full scale IQ, verbal IQ, and performance IQ scores in our cohort were 72.41 (standard deviation-SD of 13.72), 75.91(SD of 14.46), and 73.01(SD of 13.71), respectively. To investigate whether IQ scores are associated with deletion size, we examined individuals with the 3 Mb, AD (n = 1,353) and nested 1.5 Mb, AB (n = 74) deletions, since they comprised the largest subgroups. We found that full scale IQ was decreased by 6.25 points (p = .002), verbal IQ was decreased by 8.17 points (p = .0002) and performance IQ was decreased by 4.03 points (p = .028) in subjects with the AD versus AB deletion. Thus, individuals with the smaller, 1.5 Mb AB deletion have modestly higher IQ scores than those with the larger, 3 Mb AD deletion. Overall, the deletion of genes in the AB region largely explains the observed low IQ in the 22q11.2DS population. However, our results also indicate that haploinsufficiency of genes in the LCR22B-D region (BD) exert an additional negative impact on IQ. Furthermore, we did not find evidence of a confounding effect of severe congenital heart disease on IQ scores in our cohort.


Assuntos
Deleção Cromossômica , Cromossomos Humanos Par 22 , Síndrome de DiGeorge/genética , Síndrome de DiGeorge/psicologia , Adolescente , Adulto , Criança , Feminino , Humanos , Deficiência Intelectual/genética , Testes de Inteligência , Masculino
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