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1.
Acta Psychiatr Scand ; 2024 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-38408371

RESUMO

INTRODUCTION: Early parenting services in Australia offer brief structured residential programs to address moderate to severe non-psychotic mental health problems among women and unsettled infant/toddler behaviours. The aims were to (1) estimate the immediate and medium-term impact of a five-night psychoeducational residential early parenting program on postpartum depressive symptoms and (2) identify the factors associated with improvement or worsening of postpartum depressive symptoms after completing the program and six weeks post-discharge. METHODS: Audit of routinely collected medical record data from pre-admission, pre-discharge and post-discharge assessments of a consecutive cohort of women admitted, with their infants/toddlers in a 15-month period to Masada Private Hospital Early Parenting Centre. Data included structured questions assessing: demographic characteristics, access to family and social support, past and current mental health problems, reproductive and obstetric health, chronic health conditions, breastfeeding problems, coincidental major life events, health risk behaviours and infant/toddler feeding, sleeping and crying behaviours. Standardised instruments included the Partner Interaction after Birth Scale (PIBS), the MacLean Screening Instrument for Borderline Personality Disorder (MSI-BPD), Modified Fatigue Assessment Scale (FAS) and selected items from the Karitane Parenting Confidence Scale. The primary outcomes were Edinburgh Postnatal Depression Scale scores at pre-discharge and follow up assessments. Data were analysed using multinomial logistic regression models in which individual and psychosocial characteristics at pre-admission were included as predictors of the likelihood of the changes of the outcomes from pre-admission to pre-discharge and follow up. RESULTS: Complete data from 1220 of 1290 (95%) eligible women were available to assess pre-admission to pre-discharge and from 559 (45.8%) to assess pre-discharge to six-week follow-up changes. The mean pre-admission EPDS score was 11.7 (95% CI: 11.5; 12.0), pre-discharge it was 7.1 (95% CI: 6.9; 7.4) and at six-week follow up it was 5.7 (95% CI: 5.3; 6.1). We found that almost all women experienced a clinically meaningful and rapid improvement in depressive symptoms of at least this magnitude (reduction in mean EPDS scores of 4.6 points from pre-admission to pre-discharge (five nights) and a further reduction of 1.2 points pre-discharge to follow up) (six weeks) and we identified an interpretable set of risk factors for symptoms that did not improve or worsened. The adverse outcomes were associated with having symptoms of borderline personality disorder, a partner experienced as lacking kindness and care, coincidental adverse events and having a child younger than six months. CONCLUSION: Residential early parenting programs, which take a psycho-educational approach to strengthening caregiving skills, maximising agency, and reducing helplessness, have a rapid beneficial effect on women's postpartum depressive symptoms. These programs provide a valuable and effective component of comprehensive mental health services. Long-term dialectical behaviour therapy is indicated for women with borderline personality disorder traits for whom early parenting programs alone are insufficient to improve depressive symptoms.

2.
J Reprod Infant Psychol ; : 1-17, 2024 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-38198123

RESUMO

AIMS: To evaluate the effects of a 5-day residential psychoeducational program on maternal anxiety and fatigue symptoms among women admitted with their unsettled infants and determine the psychological, social and demographic characteristics which are associated with the effect sizes. METHODS: This is a secondary analysis of routinely collected data from mothers with children aged up to 24 months who were admitted to and completed the residential early parenting psychoeducational program at Masada Private Hospital Early Parenting Centre in Melbourne. Maternal anxiety symptoms were assessed using the Edinburgh Postnatal Depression Scale Three-item Anxiety subscale and maternal fatigue symptoms were the Modified Fatigue Assessment Scale at preadmission, predischarge and follow-up 6-weeks post discharge. RESULTS: Overall, 1220 admissions were included in analyses. Cohen's d for reductions in the anxiety symptoms during the program was 0.64 (95% CI 0.59 to 0.70) and from pre-discharge to post-discharge was 0.14 (95% CI 0.09 to 01.9), and for fatigue was 1.21 (95% CI 1.11 to 1.32). Higher borderline personality disorder symptoms and experiencing more stressful life events were associated with lower mean reductions in anxiety and fatigue symptoms. Women with a history of mental health problems had lower anxiety symptom reductions. Women who were older or had younger babies had lower fatigue score reductions. CONCLUSION: This study confirms the effectiveness of a 5-day residential early parenting psychoeducational program provided by a private sector facility in reducing postnatal anxiety and fatigue rapidly, with effects maintained to at least 6-weeks post-discharge.

3.
Hum Genet ; 141(3-4): 965-979, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34633540

RESUMO

Otosclerosis is a bone disorder of the otic capsule and common form of late-onset hearing impairment. Considered a complex disease, little is known about its pathogenesis. Over the past 20 years, ten autosomal dominant loci (OTSC1-10) have been mapped but no genes identified. Herein, we map a new OTSC locus to a 9.96 Mb region within the FOX gene cluster on 16q24.1 and identify a 15 bp coding deletion in Forkhead Box L1 co-segregating with otosclerosis in a Caucasian family. Pre-operative phenotype ranges from moderate to severe hearing loss to profound sensorineural loss requiring a cochlear implant. Mutant FOXL1 is both transcribed and translated and correctly locates to the cell nucleus. However, the deletion of 5 residues in the C-terminus of mutant FOXL1 causes a complete loss of transcriptional activity due to loss of secondary (alpha helix) structure. FOXL1 (rs764026385) was identified in a second unrelated case on a shared background. We conclude that FOXL1 (rs764026385) is pathogenic and causes autosomal dominant otosclerosis and propose a key inhibitory role for wildtype Foxl1 in bone remodelling in the otic capsule. New insights into the molecular pathology of otosclerosis from this study provide molecular targets for non-invasive therapeutic interventions.


Assuntos
Otosclerose , Fatores de Transcrição Forkhead/genética , Humanos , Otosclerose/genética
4.
Dev Biol ; 480: 62-68, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34400136

RESUMO

The onset of circulation in a developing embryo requires intact blood vessels to prevent hemorrhage. The development of endothelial cells, and their subsequent recruitment of perivascular mural cells are important processes to establish and maintain vascular integrity. These processes are genetically controlled during development, and mutations that affect endothelial cell specification, pattern formation, or maturation through the addition of mural cells can result in early developmental hemorrhage. We created a strong loss of function allele of the zebrafish GDP-mannose 4,6 dehydratase (gmds) gene that is required for the de novo synthesis of GDP-fucose, and homozygous embryos display cerebral hemorrhages. Our data demonstrate that gmds mutants have early defects in vascular patterning with ectopic branches observed at time of hemorrhage. Subsequently, defects in the number of mural cells that line the vasculature are observed. Moreover, activation of Notch signaling rescued hemorrhage phenotypes in gmds mutants, highlighting a potential downstream pathway that requires protein fucosylation for vascular integrity. Finally, supplementation with fucose can rescue hemorrhage frequency in gmds mutants, demonstrating that synthesis of GDP-fucose via an alternative (salvage) pathway may provide an avenue toward therapeutic correction of phenotypes observed due to defects in de novo GDP-fucose synthesis. Together, these data are consistent with a novel role for the de novo and salvage protein fucosylation pathways in regulating vascular integrity through a Notch dependent mechanism.


Assuntos
Células Endoteliais/metabolismo , Hidroliases/metabolismo , Receptores Notch/metabolismo , Animais , Padronização Corporal/genética , Diferenciação Celular/genética , Movimento Celular/genética , Fucose/metabolismo , Glicosilação , Guanosina Difosfato Fucose/metabolismo , Hemorragia/genética , Hemorragia/prevenção & controle , Hidroliases/genética , Mutação com Perda de Função/genética , Mutação , Fenótipo , Receptores Notch/fisiologia , Transdução de Sinais , Peixe-Zebra/metabolismo , Proteínas de Peixe-Zebra/metabolismo
5.
Dev Biol ; 333(1): 37-47, 2009 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-19545559

RESUMO

Dorsal-ventral patterning of the vertebrate retina is essential for accurate topographic mapping of retinal ganglion cell (RGC) axons to visual processing centers. Bone morphogenetic protein (Bmp) growth factors regulate dorsal retinal identity in vertebrate models, but the developmental timing of this signaling and the relative roles of individual Bmps remain unclear. In this study, we investigate the functions of two zebrafish Bmps, Gdf6a and Bmp4, during initiation of dorsal retinal identity, and subsequently during lens differentiation. Knockdown of zebrafish Gdf6a blocks initiation of retinal Smad phosphorylation and dorsal marker expression, while knockdown of Bmp4 produces no discernable retinal phenotype. These data, combined with analyses of embryos ectopically expressing Bmps, demonstrate that Gdf6a is necessary and sufficient for initiation of dorsal retinal identity. We note a profound expansion of ventral retinal identity in gdf6a morphants, demonstrating that dorsal BMP signaling antagonizes ventral marker expression. Finally, we demonstrate a role for Gdf6a in non-neural ocular tissues. Knockdown of Gdf6a leads to defects in lens-specific gene expression, and when combined with Bmp signaling inhibitors, disrupts lens fiber cell differentiation. Taken together, these data indicate that Gdf6a initiates dorsal retinal patterning independent of Bmp4, and regulates lens differentiation.


Assuntos
Fator 6 de Diferenciação de Crescimento/fisiologia , Cristalino/embriologia , Retina/embriologia , Proteínas de Peixe-Zebra/fisiologia , Animais , Animais Geneticamente Modificados , Padronização Corporal/fisiologia , Proteína Morfogenética Óssea 4/biossíntese , Proteína Morfogenética Óssea 4/genética , Embrião não Mamífero/fisiologia , Técnicas de Silenciamento de Genes , Fator 6 de Diferenciação de Crescimento/biossíntese , Fator 6 de Diferenciação de Crescimento/genética , Cristalino/metabolismo , Retina/metabolismo , Transdução de Sinais/fisiologia , Proteínas Smad/antagonistas & inibidores , Proteínas Smad/fisiologia , Proteínas com Domínio T/genética , Peixe-Zebra , Proteínas de Peixe-Zebra/biossíntese , Proteínas de Peixe-Zebra/genética
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