43 results on '"Campbell, Linda E."'
Search Results
2. Effect of fractional exhaled nitric oxide (FENO)-based asthma management during pregnancy versus usual care on infant development, temperament, sensory function and autism signs.
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Whalen, Olivia M., Campbell, Linda E., Lane, Alison E., Karayanidis, Frini, Mallise, Carly A., Woolard, Alix J., Holliday, Elizabeth G., Mattes, Joerg, Collison, Adam, Gibson, Peter G., and Murphy, Vanessa E.
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INFANT development ,INFANT care ,ASTHMA ,NITRIC oxide ,AUTISM ,INFANT health ,CRYING ,PRECONCEPTION care - Abstract
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 (F
ENO )-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. [ABSTRACT FROM AUTHOR]- Published
- 2024
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3. Source‐based morphometry reveals structural brain pattern abnormalities in 22q11.2 deletion syndrome.
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Ge, Ruiyang, Ching, Christopher R. K., Bassett, Anne S., Kushan, Leila, Antshel, Kevin M., van Amelsvoort, Therese, Bakker, Geor, Butcher, Nancy J., Campbell, Linda E., Chow, Eva W. C., Craig, Michael, Crossley, Nicolas A., Cunningham, Adam, Daly, Eileen, Doherty, Joanne L., Durdle, Courtney A., Emanuel, Beverly S., Fiksinski, Ania, Forsyth, Jennifer K., and Fremont, Wanda
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DIGEORGE syndrome ,BRAIN abnormalities ,MORPHOMETRICS ,VOXEL-based morphometry ,GRAY matter (Nerve tissue) ,22Q11 deletion syndrome - Abstract
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. [ABSTRACT FROM AUTHOR]
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- 2024
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4. 'If I don't Do It, I'm Out of Rhythm and I Can't Focus As Well': Positive and Negative Adult Interpretations of Therapies Aimed at 'Fixing' Their Restricted and Repetitive Behaviours in Childhood.
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McCormack, Lynne, Wong, Sze Wing, and Campbell, Linda E.
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CLINICAL trials ,PHENOMENOLOGY ,AUTISM ,SOCIAL skills ,THEMATIC analysis ,BEHAVIOR modification - Abstract
Restricted and repetitive behaviours (RRBs) are observed in many children presenting with characteristics of autism and are frequently the targets of psychological interventions. This study used Interpretative Phenomenological Analysis (IPA) to identify positive and negative interpretations from four young adults who received behavioural interventions in their childhood designed to 'fix' RRBs. Two superordinate themes were identified: (1) Doubt, stigma and being fixed according to others, and (2) Embracing Authenticity. They highlighted juxtaposed positions from exclusion, rejection, criticism, and self-doubt in childhood, to rejecting societal censure and embracing authentic growth in adult life. As adults, though the participants recognised themselves as neurologically different from others, they redefined themselves through a lens of neurodiversity, and therefore as not needing to be fixed. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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5. Development of a Brief Coparenting Measure: The Coparenting Competence Scale.
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May, Chris, Atherton, Codie, Colyvas, Kim, Mancini, Vincent, and Campbell, Linda E.
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- 2023
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6. Domains and measures of social cognition in acquired brain injury: A scoping review.
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Wallis, Kimberley, Kelly, Michelle, McRae, Sarah E., McDonald, Skye, and Campbell, Linda E.
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SOCIAL perception ,BRAIN injuries ,INTERPERSONAL Reactivity Index ,EMOTION recognition ,FACE perception - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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7. Parenting stress in mothers with asthma during the postpartum period.
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Mallise, Carly A., Murphy, Vanessa E., Karayanidis, Frini, Armstrong, Helen, Whalen, Olivia M., Woolard, Alix J., Gibson, Peter G., Mattes, Joerg, Collison, Adam, Lane, Alison E., and Campbell, Linda E.
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PARENTING Stress Index ,PUERPERIUM ,ASTHMA ,MOTHERS ,PARENTING - Abstract
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. 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. 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. 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. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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8. Infant and Child-Directed Speech Used with Infants and Children at Risk or Diagnosed with Autism Spectrum Disorder: a Scoping Review.
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Woolard, Alix, Lane, Alison E., Campbell, Linda E., Whalen, Olivia M., Swaab, Linda, Karayanidis, Frini, Barker, Daniel, Murphy, Vanessa, and Benders, Titia
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- 2022
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9. Experiences of non‐invasive prenatal screening: A survey study.
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Cornell, Paige, Armstrong, Taylah, Fyfe, Rina, Mallise, Carly A., Dudding‐Byth, Tracy, and Campbell, Linda E.
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PRENATAL diagnosis ,PREGNANT women ,PATIENT satisfaction ,SURVEYS ,DECISION making ,DESCRIPTIVE statistics ,GENETIC counseling ,ATTITUDES toward pregnancy ,JUDGMENT sampling ,DATA analysis software - Abstract
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. [ABSTRACT FROM AUTHOR]
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- 2022
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10. A First Step to Supporting the Coparenting Relationship and Reducing Child Behaviour Problems: A Delphi Consensus Study.
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Powe, Freya, Mallise, Carly A., and Campbell, Linda E.
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PART-time parenting ,BEHAVIOR disorders in children ,PARENTING ,PARENT-child communication ,SAFETY ,CONFLICT management ,CO-parents ,PARENTS ,COMMUNICATIVE competence ,HUMAN services programs ,PATIENT safety ,EVALUATION of human services programs ,SOCIAL support ,TEXT messages ,DELPHI method ,HEALTH care teams - Abstract
Parenting programs addressing coparenting skills are very effective in reducing problematic child behaviours. Barriers to participation in parenting programs highlight a need for flexible and accessible programs. The current study is the first step in designing a text-message based intervention aimed at strengthening coparenting skills to reduce child problem behaviours. A three phase Delphi study was conducted with two panels, which consisted of 13 multidisciplinary professionals with expertise in child behaviour problems and 10 parents with experience of child behaviour problems. A series of structured online surveys explored participant's opinions regarding topics of importance to build and improve coparenting in the context of problematic child behaviours. Topics had high consistency between panels, and with existing literature, and ranged from communication and behaviour management skills to parenting practices. Sample messages were screened for further development to improve coparenting and address problem child behaviours. Highlights: The Delphi method was used to determine how building coparenting skills may be used to improve problem child behaviours. Sample messages developed were assessed by professionals and parents to ensure they were suitable for an intervention. Highest endorsed themes included conflict resolution/communication skills, providing safety and behaviour management skills. Themes endorsed by both professional and parent panels complemented Feinberg's (2003) model of coparenting. Short messages allow for parents regardless of barriers to receive information and build skills in an accessible format. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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11. Early Sensory and Temperament Features in Infants Born to Mothers With Asthma: A Cross-Sectional Study.
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Mallise, Carly A., Murphy, Vanessa E., Campbell, Linda E., Woolard, Alix J., Whalen, Olivia M., Milton, Gabrielle, Mattes, Joerg, Collison, Adam, Gibson, Peter G., Karayanidis, Frini, and Lane, Alison E.
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MOTHER-infant relationship ,TEMPERAMENT ,INFANTS ,REFERENCE values ,ASTHMA - Abstract
Maternal asthma in pregnancy is associated with an increased risk of adverse perinatal outcomes. Adverse perinatal outcomes may result in poorer infant developmental outcomes, such as temperament and sensory difficulties. This study aimed to (1) assess differences in temperament and sensory features between infants born to mothers with and without asthma and (2) investigate differences in these infant behaviours as a function of maternal asthma severity and asthma control. Mothers completed the Carey Temperament Scales and the Sensory Profile 2 at either 6 weeks, 6 months, or 12 months postpartum. Overall, we observed no significant differences between infants born to mothers with and without asthma in their temperament or sensory features; scores in both domains fell within the normative range. More infants in the asthma group, however, were reported to be highly distractible. When compared with normative data, infants in both groups were reported to have poor predictability of biological functions and fewer infants engaged in low levels of sensory behaviours. Some infants were observed to experience difficulties with hyper-reactivity within several domains. Maternal asthma severity and control during pregnancy were not linked to significant differences between infant temperament and sensory features. The present findings indicate that infants born to mothers with asthma are not at an increased risk overall for temperament or sensory difficulties, compared to control infants. However, a subset of infants across both groups may be at risk for attention or sensory hyper-reactivity difficulties. Further research into the developmental outcomes of infants born to mothers with asthma is warranted. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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12. Embedding infant mental health promotion practices within community-centred parent-infant interaction activities.
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Campbell, Linda E., Costa, Deborah, Stacey, Rebecca K., Mansfield, Vicki, and Elliott, Rickie
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MENTAL health promotion ,INFANT health ,MENTAL health personnel ,INFANTS ,PARENT-infant relationships ,HEALTH promotion ,PARENT-child relationships - Abstract
The Australian Government's policies and action plans referencing infant mental health have coincided with calls from infant mental health professionals seeking greater support within the infant mental health sector. Broadly, infant mental health refers to an individual's ability to respond physically and emotionally to their surrounding environment, encompassing regulative behaviours and social and cognitive abilities. This paper considers the impact of optimising parent-infant relationships on the applicability of public health science when implemented within a community-based setting by exploring a proof-of-concept, innovative practice model in promoting infant mental health. This novel infant mental health promotion program was delivered as a weekly intervention over ten weeks. It was conceptualised using public health science to promote infant and maternal mental health. The program sought to capitalise on existing infant-parent interaction activities embedded within community activities, which for this case study included a baby learn to swim class. [ABSTRACT FROM AUTHOR]
- Published
- 2022
13. Quality and Quantity: A Study of Father–Toddler Rough-and-Tumble Play.
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StGeorge, Jennifer M., Campbell, Linda E., Hadlow, Taylor, and Freeman, Emily E.
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TODDLERS development ,FATHER-child relationship ,PLAY ,CONFIDENCE ,PARENTING ,QUALITY of life ,PARENTS - Abstract
Parent–child interactions are critical for a child's overall wellbeing and growth, however there are differences in the types of interactions that mothers and fathers engage in. For example, fathers often utilize physical play, such as Rough-and-Tumble Play (RTP), to interact and bond with their child. Father-child RTP appears to contribute to a range of child outcomes, including social, emotional cognitive and behaviour development. Given the now robust evidence for these benefits of father–child play and RTP specifically, there is a need for a more complete understanding of the factors that contribute to the quality of fathers' RTP. This study examined the association between quality of father–toddler RTP and a range of paternal characteristics, parenting factors, child demographics and child developmental domains. The study included 64 sets of parents (mothers and fathers) and their toddler (age 18–24 months). Parent-reported questionnaires (demographic information, frequency of father–toddler RTP, father parenting stress, and child social-emotional development) were collected, observations of child developmental attainment (Bayley-III) completed and father–toddler RTP play interactions were rated for quality. We found that RTP for fathers who engaged in more father–toddler RTP, whose children were older and more socially-emotionally mature, was rated as higher quality in their RTP. By demonstrating links of RTP quality with both parenting behaviour and child development, this study contributes to a more complete understanding of the nature and context of father–child interactions. Father–child physical play, including RTP, may present an opportunity for professionals to bring fathers into their work with families. Highlights: When fathers engage in physical play with their children, it is generally more stimulating, vigorous and arousing for the child than mothers' play. The frequency of rough and tumble play is closely related to the quality of the play The quality of rough and tumble play is linked to children's age and social-emotional maturity. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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14. What parents want to know in the first postnatal year: A Delphi consensus study.
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Cashin, Miranda, Wroe, Jaime, and Campbell, Linda E.
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EDUCATION of parents ,MENTAL health ,PUERPERIUM ,ATTACHMENT behavior ,PSYCHOEDUCATION ,PARENTHOOD ,PARENTING ,PARENT attitudes ,CHILDREN'S accident prevention ,INFANT nutrition ,DELPHI method ,SOCIAL support - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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15. Observational study of mental health in asthmatic women during the prenatal and postnatal periods.
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Whalen, Olivia M., Campbell, Linda E., Murphy, Vanessa E., Lane, Alison E., Gibson, Peter G., Mattes, Joerg, Collison, Adam, Mallise, Carly A., Woolard, Alix, and Karayanidis, Frini
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WOMEN'S mental health ,PUERPERIUM ,MENTAL health services ,EDINBURGH Postnatal Depression Scale ,PRENATAL depression ,EXTERNALIZING behavior ,ANTISOCIAL personality disorders - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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16. Mapping Subcortical Brain Alterations in 22q11.2 Deletion Syndrome: Effects of Deletion Size and Convergence With Idiopathic Neuropsychiatric Illness.
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Ching, Christopher R.K., Gutman, Boris A., Sun, Daqiang, Villalon Reina, Julio, Ragothaman, Anjanibhargavi, Isaev, Dmitry, Zavaliangos-Petropulu, Artemis, Lin, Amy, Jonas, Rachel K., Kushan, Leila, Pacheco-Hansen, Laura, Vajdi, Ariana, Forsyth, Jennifer K., Jalbrzikowski, Maria, Bakker, Geor, van Amelsvoort, Therese, Antshel, Kevin M., Fremont, Wanda, Kates, Wendy R., and Campbell, Linda E.
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BRAIN mapping ,22Q11 deletion syndrome ,MENTAL depression ,BIPOLAR disorder ,DISEASES ,NEUROBEHAVIORAL disorders ,BRAIN ,DIGEORGE syndrome ,RESEARCH ,PSYCHOSES ,HYPERTROPHY ,RESEARCH methodology ,MAGNETIC resonance imaging ,CASE-control method ,EVALUATION research ,MEDICAL cooperation ,ATROPHY ,COMPARATIVE studies ,RESEARCH funding ,MENTAL illness ,DISEASE complications - Abstract
Objective: 22q11.2 deletion syndrome (22q11DS) is among the strongest known genetic risk factors for schizophrenia. Previous studies have reported variable alterations in subcortical brain structures in 22q11DS. To better characterize subcortical alterations in 22q11DS, including modulating effects of clinical and genetic heterogeneity, the authors studied a large multicenter neuroimaging cohort from the ENIGMA 22q11.2 Deletion Syndrome Working Group.Methods: Subcortical structures were measured using harmonized protocols for gross volume and subcortical shape morphometry in 533 individuals with 22q11DS and 330 matched healthy control subjects (age range, 6-56 years; 49% female).Results: Compared with the control group, the 22q11DS group showed lower intracranial volume (ICV) and thalamus, putamen, hippocampus, and amygdala volumes and greater lateral ventricle, caudate, and accumbens volumes (Cohen's d values, -0.90 to 0.93). Shape analysis revealed complex differences in the 22q11DS group across all structures. The larger A-D deletion was associated with more extensive shape alterations compared with the smaller A-B deletion. Participants with 22q11DS with psychosis showed lower ICV and hippocampus, amygdala, and thalamus volumes (Cohen's d values, -0.91 to 0.53) compared with participants with 22q11DS without psychosis. Shape analysis revealed lower thickness and surface area across subregions of these structures. Compared with subcortical findings from other neuropsychiatric disorders studied by the ENIGMA consortium, significant convergence was observed between participants with 22q11DS with psychosis and participants with schizophrenia, bipolar disorder, major depressive disorder, and obsessive-compulsive disorder.Conclusions: In the largest neuroimaging study of 22q11DS to date, the authors found widespread alterations to subcortical brain structures, which were affected by deletion size and psychotic illness. Findings indicate significant overlap between 22q11DS-associated psychosis, idiopathic schizophrenia, and other severe neuropsychiatric illnesses. [ABSTRACT FROM AUTHOR]- Published
- 2020
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17. "She'll be able to live independently... as long as I'm around": The "lived" experience of parenting a child with 22q11.2 deletion syndrome in the transition to adulthood.
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Goodwin, Jane, Swaab, Linda, and Campbell, Linda E.
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TRANSITION to adulthood ,AGE distribution ,EXPERIENCE ,INTERPERSONAL relations ,PHENOMENOLOGY ,PARENT-child relationships ,PARENTING ,PARENTS of children with disabilities ,HUMAN sexuality ,PSYCHOSOCIAL factors ,DIGEORGE syndrome - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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18. Alternative diffusion anisotropy measures for the investigation of white matter alterations in 22q11.2 deletion syndrome.
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Villalon-Reina, Julio E., Ching, Christopher R. K., Kothapalli, Deydeep, Daqiang Sun, Nir, Talia, Lin, Amy, Forsyth, Jennifer K., Kushan, Leila, Vajdi, Ariana, Jalbrzikowski, Maria, Hansen, Laura, Jonas, Rachel K., van Amelsvoort, Therese, Bakker, Geor, Kates, Wendy R., Antshel, Kevin M., Fremont, Wanda, Campbell, Linda E., McCabe, Kathryn L., and Daly, Eileen
- Published
- 2019
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19. The effects of maternal asthma during pregnancy on child cognitive and behavioral development: A systematic review.
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Whalen, Olivia M., Karayanidis, Frini, Murphy, Vanessa E., Lane, Alison E., Mallise, Carly A., and Campbell, Linda E.
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COGNITIVE development ,META-analysis ,ASTHMA ,ASTHMA in children ,CHILD development ,PRENATAL depression ,SELF-injurious behavior - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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20. Severity of illness and adaptive functioning predict quality of care of children among parents with psychosis: A confirmatory factor analysis.
- Author
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Campbell, Linda E., Hanlon, Mary-Claire, Galletly, Cherrie A., Harvey, Carol, Stain, Helen, Cohen, Martin, van Ravenzwaaij, Don, and Brown, Scott
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HYPOTHESIS ,CHILD care ,FACTOR analysis ,PARENTING ,PSYCHOLOGY of parents ,PSYCHOSES ,SURVEYS ,MATHEMATICAL variables ,SOCIAL support ,SEVERITY of illness index - Abstract
Objective: Parenthood is central to the personal and social identity of many people. For individuals with psychotic disorders, parenthood is often associated with formidable challenges. We aimed to identify predictors of adequate parenting among parents with psychotic disorders. Methods: Data pertaining to 234 parents with psychotic disorders living with dependent children were extracted from a population-based prevalence study, the 2010 second Australian national survey of psychosis, and analysed using confirmatory factor analysis. Parenting outcome was defined as quality of care of children, based on participant report and interviewer enquiry/exploration, and included level of participation, interest and competence in childcare during the last 12 months. Results: Five hypothesis-driven latent variables were constructed and labelled psychosocial support, illness severity, substance abuse/dependence, adaptive functioning and parenting role. Importantly, 75% of participants were not identified to have any dysfunction in the quality of care provided to their child(ren). Severity of illness and adaptive functioning were reliably associated with quality of childcare. Psychosocial support, substance abuse/dependence and parenting role had an indirect relationship to the outcome variable via their association with either severity of illness and/or adaptive functioning. Conclusion: The majority of parents in the current sample provided adequate parenting. However, greater symptom severity and poorer adaptive functioning ultimately leave parents with significant difficulties and in need of assistance to manage their parenting obligations. As symptoms and functioning can change episodically for people with psychotic illness, provision of targeted and flexible support that can deliver temporary assistance during times of need is necessary. This would maximise the quality of care provided to vulnerable children, with potential long-term benefits. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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21. Could I, should I? Parenting aspirations and personal considerations of five young women with 22q11.2 deletion syndrome.
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Phillips, Lisa, Goodwin, Jane, Johnson, Martin P., and Campbell, Linda E.
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EMOTIONS ,HOPE ,INDIVIDUALITY ,INTERPERSONAL relations ,INTERVIEWING ,PHENOMENOLOGY ,RESEARCH methodology ,PSYCHOLOGY of people with intellectual disabilities ,PARENTING ,WOMEN'S health ,SOCIAL support ,THEMATIC analysis ,22Q11 deletion syndrome - Abstract
BackgroundThis phenomenological study explores the perceptions, hopes, and dreams of relationships and parenting of women with a genetic intellectual disability. MethodFive women with both 22q11.2 deletion syndrome (22q11DS) and intellectual disability took part in semistructured interviews. Their subjective interpretations were analysed using interpretative phenomenological analysis. ResultsFour main themes emerged: (a) challenges and acceptance of having 22q11DS, (b) desire for social acceptance and normality, (c) welcoming of emotional and practical support, and (d) individuation. The themes describe the discordance between the challenges and acceptance of having a genetic disorder, the need to be “normal,” the importance and appreciation of social support, and the women’s aspirations for independence. ConclusionsYoung women with 22q11DS approach their adulthood with a sense of optimism and personal competence yet recognise their unique challenges. Parental support is valued despite the need for independence. The findings provide insight into the lived experience of women with 22q11DS. [ABSTRACT FROM PUBLISHER]
- Published
- 2017
- Full Text
- View/download PDF
22. Social Dysfunction and Diet Outcomes in People with Psychosis.
- Author
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Mucheru, Doreen, Hanlon, Mary-Claire, MacDonald-Wicks, Lesley, McEvoy, Mark, and Campbell, Linda E.
- Abstract
This analysis aimed to examine the association of social dysfunction with food security status, fruit intake, vegetable intake, meal frequency and breakfast consumption in people with psychosis from the Hunter New England (HNE) catchment site of the Survey of High Impact Psychosis (SHIP). Social dysfunction and dietary information were collected using standardised tools. Independent binary logistic regressions were used to examine the association between social dysfunction and food security status, fruit intake, vegetable intake, meal frequency and breakfast consumption. Although social dysfunction did not have a statistically significant association with most diet variables, participants with obvious to severe social dysfunction were 0.872 (95% CI (0.778, 0.976)) less likely to eat breakfast than those with no social dysfunction p < 0.05. Participants with social dysfunction were therefore, 13% less likely to have breakfast. This paper highlights high rates of social dysfunction, significant food insecurity, and intakes of fruits and vegetables below recommendations in people with psychosis. In light of this, a greater focus needs to be given to dietary behaviours and social dysfunction in lifestyle interventions delivered to people with psychosis. Well-designed observational research is also needed to further examine the relationship between social dysfunction and dietary behaviour in people with psychosis. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
23. An fMRI study of facial emotion processing in children and adolescents with 22q11.2 deletion syndrome.
- Author
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Azuma, Rayna, Deeley, Quinton, Campbell, Linda E., Daly, Eileen M., Giampietro, Vincent, Brammer, Michael J., Murphy, Kieran C., and Murphy, Declan G. M.
- Abstract
Background 22q11.2 deletion syndrome (22q11DS, velo-cardio-facial syndrome [VCFS]) is a genetic disorder associated with interstitial deletions of chromosome 22q11.2. In addition to high rates of neuropsychiatric disorders, children with 22q11DS have impairments of face processing, as well as IQ-independent deficits in visuoperceptual function and social and abstract reasoning. These face-processing deficits may contribute to the social impairments of 22q11DS. However, their neurobiological basis is poorly understood. Methods We used event-related functional magnetic resonance imaging (fMRI) to examine neural responses when children with 22q11DS (aged 9-17 years) and healthy controls (aged 8-17 years) incidentally processed neutral expressions and mild (50%) and intense (100%) expressions of fear and disgust. We included 28 right-handed children and adolescents: 14 with 22q11DS and 14 healthy (including nine siblings) controls. Results Within groups, contrasts showed that individuals significantly activated 'face responsive' areas when viewing neutral faces, including fusiform-extrastriate cortices. Further, within both groups, there was a significant positive linear trend in activation of fusiform-extrastriate cortices and cerebellum to increasing intensities of fear. There were, however, also between group differences. Children with 22q11DS generally showed reduced activity as compared to controls in brain regions involved in social cognition and emotion processing across emotion types and intensities, including fusiform-extrastriate cortices, anterior cingulate cortex (Brodmann area (BA) 24/32), and superomedial prefrontal cortices (BA 6). Also, an exploratory correlation analysis showed that within 22q11DS children reduced activation was associated with behavioural impairment--social difficulties (measured using the Total Difficulties Score from the Strengths and Difficulties Questionnaire [SDQ]) were significantly negatively correlated with brain activity during fear and disgust processing (respectively) in the left precentral gyrus (BA 4) and in the left fusiform gyrus (FG, BA 19), right lingual gyrus (BA 18), and bilateral cerebellum. Conclusions Regions involved in face processing, including fusiform-extrastriate cortices, anterior cingulate gyri, and superomedial prefrontal cortices (BA 6), are activated by facial expressions of fearful, disgusted, and neutral expressions in children with 22q11DS but generally to a lesser degree than in controls. Hypoactivation in these regions may partly explain the social impairments of children with 22q11DS. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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- View/download PDF
24. Filaggrin loss-of-function mutations and atopic dermatitis as risk factors for hand eczema in apprentice nurses: part II of a prospective cohort study.
- Author
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Visser, Maaike J., Verberk, Maarten M., Campbell, Linda E., McLean, W. H. Irwin, Calkoen, Florentine, Bakker, Jan G., van Dijk, Frank J. H., Bos, Jan D., and Kezic, Sanja
- Subjects
FILAGGRIN ,ATOPIC dermatitis ,ECZEMA ,COHORT analysis ,CONTACT dermatitis ,CONFIDENCE intervals ,PATIENTS ,DISEASE risk factors - Abstract
Background/objectives Environmental exposure and personal susceptibility both contribute to the development of hand eczema. In this study, we investigated the effect of loss-of-function mutations in the filaggrin gene ( FLG), atopic dermatitis and wet work exposure on the development of hand eczema in apprentice nurses. Methods Dutch apprentice nurses were genotyped for the four most common FLG mutations; atopic dermatitis and hand eczema history were assessed by questionnaire. Exposure and hand eczema during traineeships were assessed with diary cards. Results The prevalence of hand eczema during traineeships was higher among subjects with a history of hand eczema reported at inclusion. Hand washing during traineeships and at home increased the risk of hand eczema. After adjustment for the effects of exposure and FLG mutations, an odds ratio of 2.5 (90% confidence interval 1.7-3.7) was found for a history of atopic dermatitis. In this study, an increased risk of hand eczema conferred by FLG mutations could not be shown, but subjects with concomitant FLG mutations and atopic dermatitis showed the highest risk of hand eczema during traineeships. Conclusion A history of atopic dermatitis, a history of hand eczema and wet work exposure were the most important factors increasing the risk of hand eczema during traineeships. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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- View/download PDF
25. Generation and Characterisation of Keratin 7 (K7) Knockout Mice
- Author
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Sandilands, Aileen, Smith, Frances J. D., Lunny, Declan P., Campbell, Linda E., Davidson, Kirsty M., MacCallum, Stephanie F., Corden, Laura D., Christie, Lesley, Fleming, Stewart, Lane, E. Birgitte, and McLean, W. H. Irwin
- Subjects
KERATIN ,GENE expression ,EPITHELIAL cells ,DEVELOPMENTAL biology ,CELL differentiation ,CYTOSKELETON ,LABORATORY mice - Abstract
Keratin 7 (K7) is a Type II member of the keratin superfamily and despite its widespread expression in different types of simple and transitional epithelia, its functional role in vivo remains elusive, in part due to the lack of any appropriate mouse models or any human diseases that are associated with KRT7 gene mutations. Using conventional gene targeting in mouse embryonic stem cells, we report here the generation and characterisation of the first K7 knockout mouse. Loss of K7 led to increased proliferation of the bladder urothelium although this was not associated with hyperplasia. K18, a presumptive type I assembly partner for K7, showed reduced expression in the bladder whereas K20, a marker of the terminally differentiated superficial urothelial cells was transcriptionally up-regulated. No other epithelia were seen to be adversely affected by the loss of K7 and western blot and immunofluorescence microscopy analysis revealed that the expression of K8, K18, K19 and K20 were not altered in the absence of K7, with the exception of the kidney where there was reduced K18 expression. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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- View/download PDF
26. Understanding the social costs of psychosis: The experience of adults affected by psychosis identified within the second Australian national survey of psychosis.
- Author
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Stain, Helen J, Galletly, Cherrie A, Clark, Scott, Wilson, Jacqueline, Killen, Emily A, Anthes, Lauren, Campbell, Linda E, Hanlon, Mary-Claire, and Harvey, Carol
- Subjects
AGE factors in disease ,ANXIETY ,CHI-squared test ,EMPLOYMENT ,FRIENDSHIP ,GOAL (Psychology) ,INTERPERSONAL relations ,INTERVIEWING ,LONELINESS ,RESEARCH methodology ,MENTAL health ,PSYCHOSES ,RESEARCH funding ,STATISTICAL sampling ,SATISFACTION ,SEX distribution ,SOCIAL isolation ,SOCIAL participation ,SOCIAL stigma ,T-test (Statistics) ,SECONDARY analysis ,EDUCATIONAL attainment ,DATA analysis software ,DESCRIPTIVE statistics ,PSYCHOLOGICAL factors - Published
- 2012
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27. Executive functions and memory abilities in children with 22q11.2 deletion syndrome.
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Campbell, Linda E., Azuma, Rayna, Ambery, Fiona, Stevens, Angela, Smith, Anna, Morris, Robin G., Murphy, Declan G. M., and Murphy, Kieran C.
- Subjects
EXECUTIVE function ,NEUROPSYCHOLOGY ,MEMORY ,DOPAMINE ,METABOLISM - Abstract
Objective: Velo-cardio-facial syndrome or 22q11.2 deletion syndrome (22q11DS) is the most common known microdeletion syndrome. One of the genes in the deleted region is the catechol-O-methyltransferase (COMT) gene, which is thought to have significant effects on cognition through its influence on dopamine metabolism. The aim of the present study was to better characterize the cognitive phenotype in a large cohort children with 22q11DS compared with sibling controls and to investigate if the cognitive deficits in 22q11DS were modulated by COMT expression. Method: The memory, executive function and attentional abilities of children with 22q11DS (n = 50) compared to sibling controls (n = 31), were measured. Also, within children with 22q11DS, a preliminary exploration was carried out of the relationship between cognitive ability and COMT genotype. Results: Overall, the 22q11DS group had significantly reduced scores on tests of memory (especially in visual memory) and executive function (particularly in planning, working memory, and motor organization) compared with sibling controls. No association, however, was identified between COMT genotype and cognitive function. Conclusions: Although 22q11DS children have specific cognitive deficits, differences in COMT do not account for these findings. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
28. A homozygous frameshift mutation in the mouse Flg gene facilitates enhanced percutaneous allergen priming.
- Author
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Fallon, Padraic G., Sasaki, Takashi, Sandilands, Aileen, Campbell, Linda E., Saunders, Sean P., Mangan, Niamh E., Callanan, John J., Kawasaki, Hiroshi, Shiohama, Aiko, Kubo, Akiharu, Sundberg, John P., Presland, Richard B., Fleckman, Philip, Shimizu, Nobuyoshi, Kudoh, Jun, Irvine, Alan D., Amagai, Masayuki, and McLean, W. H. Irwin
- Subjects
ICHTHYOSIS ,ATOPIC dermatitis ,ALLERGENS ,ASTHMA ,PHENOTYPES ,GENETIC mutation ,GENETIC research - Abstract
Loss-of-function mutations in the FLG (filaggrin) gene cause the semidominant keratinizing disorder ichthyosis vulgaris and convey major genetic risk for atopic dermatitis (eczema), eczema-associated asthma and other allergic phenotypes. Several low-frequency FLG null alleles occur in Europeans and Asians, with a cumulative frequency of ∼9% in Europe. Here we report a 1-bp deletion mutation, 5303delA, analogous to common human FLG mutations, within the murine Flg gene in the spontaneous mouse mutant flaky tail (ft). We demonstrate that topical application of allergen to mice homozygous for this mutation results in cutaneous inflammatory infiltrates and enhanced cutaneous allergen priming with development of allergen-specific antibody responses. These data validate flaky tail as a useful model of filaggrin deficiency and provide experimental evidence for the hypothesis that antigen transfer through a defective epidermal barrier is a key mechanism underlying elevated IgE sensitization and initiation of cutaneous inflammation in humans with filaggrin-related atopic disease. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
29. Visuospatial working memory in children and adolescents with 22q11.2 deletion syndrome; an fMRI study.
- Author
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Azuma, Rayna, Daly, Eileen M., Campbell, Linda E., Stevens, Angela F., Deeley, Quinton, Giampietro, Vincent, Brammer, Michael J., Glaser, Beate, Ambery, Fiona Z., Morris, Robin G., Williams, Steven C. R., Owen, Michael J., Murphy, Declan G. M., and Murphy, Kieran C.
- Abstract
22q11.2 deletion syndrome (22q11DS) is a genetic disorder associated with a microdeletion of chromosome 22q11. In addition to high rates of neuropsychiatric disorders such as schizophrenia and attention deficit hyperactivity disorder, children with 22q11DS have a specific neuropsychological profile with particular deficits in visuospatial and working memory. However, the neurobiological substrate underlying these deficits is poorly understood. We investigated brain function during a visuospatial working memory (SWM) task in eight children with 22q11DS and 13 healthy controls, using fMRI. Both groups showed task-related activation in dorsolateral prefrontal cortex (DLPFC) and bilateral parietal association cortices. Controls activated parietal and occipital regions significantly more than those with 22q11DS but there was no significant between-group difference in DLPFC. In addition, while controls had a significant age-related increase in the activation of posterior brain regions and an age-related decrease in anterior regions, the 22q11DS children showed the opposite pattern. Genetically determined differences in the development of specific brain systems may underpin the cognitive deficits in 22q11DS, and may contribute to the later development of neuropsychiatric disorders. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
30. Primary and secondary neural networks of auditory prepulse inhibition: a functional magnetic resonance imaging study of sensorimotor gating of the human acoustic startle response.
- Author
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Campbell, Linda E., Hughes, Matthew, Budd, Timothy W., Cooper, Gavin, Fulham, W. Ross, Karayanidis, Frini, Hanlon, Mary‐Claire, Stojanov, Wendy, Johnston, Patrick, Case, Vanessa, and Schall, Ulrich
- Subjects
RESPONSE inhibition ,NEUROPSYCHIATRY ,SENSORIMOTOR integration ,RATS ,BIOLOGICAL neural networks ,MAGNETIC resonance imaging ,OXYGENATORS - Abstract
Feedforward inhibition deficits have been consistently demonstrated in a range of neuropsychiatric conditions using prepulse inhibition (PPI) of the acoustic startle eye-blink reflex when assessing sensorimotor gating. While PPI can be recorded in acutely decerebrated rats, behavioural, pharmacological and psychophysiological studies suggest the involvement of a complex neural network extending from brainstem nuclei to higher order cortical areas. The current functional magnetic resonance imaging study investigated the neural network underlying PPI and its association with electromyographically (EMG) recorded PPI of the acoustic startle eye-blink reflex in 16 healthy volunteers. A sparse imaging design was employed to model signal changes in blood oxygenation level-dependent (BOLD) responses to acoustic startle probes that were preceded by a prepulse at 120 ms or 480 ms stimulus onset asynchrony or without prepulse. Sensorimotor gating was EMG confirmed for the 120-ms prepulse condition, while startle responses in the 480-ms prepulse condition did not differ from startle alone. Multiple regression analysis of BOLD contrasts identified activation in pons, thalamus, caudate nuclei, left angular gyrus and bilaterally in anterior cingulate, associated with EMG-recorded sensorimotor gating. Planned contrasts confirmed increased pons activation for startle alone vs 120-ms prepulse condition, while increased anterior superior frontal gyrus activation was confirmed for the reverse contrast. Our findings are consistent with a primary pontine circuitry of sensorimotor gating that interconnects with inferior parietal, superior temporal, frontal and prefrontal cortices via thalamus and striatum. PPI processes in the prefrontal, frontal and superior temporal cortex were functionally distinct from sensorimotor gating. [ABSTRACT FROM AUTHOR]
- Published
- 2007
- Full Text
- View/download PDF
31. Comprehensive analysis of the gene encoding filaggrin uncovers prevalent and rare mutations in ichthyosis vulgaris and atopic eczema.
- Author
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Sandilands, Aileen, Terron-Kwiatkowski, Ana, Hull, Peter R., O'Regan, Gráinne M, Clayton, Timothy H., Watson, Rosemarie M., Carrick, Thomas, Evans, Alan T., Haihui Liao, Yiwei Zhao, Campbell, Linda E., Schmuth, Matthias, Gruber, Robert, Janecke, Andreas R., Peter M. Elias, van Steensel, Maurice A. M., Nagtzaam, Ivo, van Geel, Michel, Steijlen, Peter M., and Munro, Colin S.
- Subjects
PROTEINS ,GENETIC mutation ,ICHTHYOSIS ,ECZEMA ,ALLERGIES ,ATOPIC dermatitis - Abstract
We recently reported two common filaggrin (FLG) null mutations that cause ichthyosis vulgaris and predispose to eczema and secondary allergic diseases. We show here that these common European mutations are ancestral variants carried on conserved haplotypes. To facilitate comprehensive analysis of other populations, we report a strategy for full sequencing of this large, highly repetitive gene, and we describe 15 variants, including seven that are prevalent. All the variants are either nonsense or frameshift mutations that, in representative cases, resulted in loss of filaggrin production in the epidermis. In an Irish case-control study, the five most common European mutations showed a strong association with moderate-to-severe childhood eczema (χ
2 test: P = 2.12 × 10−51 ; Fisher's exact test: heterozygote odds ratio (OR) = 7.44 (95% confidence interval (c.i.) = 4.9–11.3), and homozygote OR = 151 (95% c.i. = 20–1,136)). We found three additional rare null mutations in this case series, suggesting that the genetic architecture of filaggrin-related atopic dermatitis consists of both prevalent and rare risk alleles. [ABSTRACT FROM AUTHOR]- Published
- 2007
- Full Text
- View/download PDF
32. Common loss-of-function variants of the epidermal barrier protein filaggrin are a major predisposing factor for atopic dermatitis.
- Author
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Palmer, Colin N. A., Irvine, Alan D., Terron-Kwiatkowski, Ana, Yiwei Zhao, Haihui Liao, Lee, Simon P., Goudie, David R., Sandilands, Aileen, Campbell, Linda E., Smith, Frances J. D., O'Regan, Gráinne M., Watson, Rosemarie M., Cecil, Jo E., Bale, Sherri J., Compton, John G., DiGiovanna, John J., Fleckman, Philip, Lewis-Jones, Sue, Arseculeratne, Gehan, and Sergeant, Ann
- Subjects
ATOPIC dermatitis ,ALLERGIES ,ASTHMA ,GENETICS ,POPULATION ,DEVELOPED countries - Abstract
Atopic disease, including atopic dermatitis (eczema), allergy and asthma, has increased in frequency in recent decades and now affects ∼20% of the population in the developed world. Twin and family studies have shown that predisposition to atopic disease is highly heritable. Although most genetic studies have focused on immunological mechanisms, a primary epithelial barrier defect has been anticipated. Filaggrin is a key protein that facilitates terminal differentiation of the epidermis and formation of the skin barrier. Here we show that two independent loss-of-function genetic variants (R510X and 2282del4) in the gene encoding filaggrin (FLG) are very strong predisposing factors for atopic dermatitis. These variants are carried by ∼9% of people of European origin. These variants also show highly significant association with asthma occurring in the context of atopic dermatitis. This work establishes a key role for impaired skin barrier function in the development of atopic disease. [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
- View/download PDF
33. Loss-of-function mutations in the gene encoding filaggrin cause ichthyosis vulgaris.
- Author
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Smith, Frances J. D., Irvine, Alan D., Terron-Kwiatkowski, Ana, Sandilands, Aileen, Campbell, Linda E., Yiwei Zhao, Haihui Liao, Evans, Alan T., Goudie, David R., Lewis-Jones, Sue, Arseculeratne, Gehan, Munro, Colin S., Sergeant, Ann, O'Regan, Gráinne, Bale, Sherri J., Compton, John G., DiGiovanna, John J., Presland, Richard B., Fleckman, Philip, and McLean, W. H. Irwin
- Subjects
ICHTHYOSIS ,KERATINIZATION ,GENETIC disorders ,HEALTH surveys ,SCHOOL children ,CELLS ,PROTEINS - Abstract
Ichthyosis vulgaris (OMIM 146700) is the most common inherited disorder of keratinization and one of the most frequent single-gene disorders in humans. The most widely cited incidence figure is 1 in 250 based on a survey of 6,051 healthy English schoolchildren. We have identified homozygous or compound heterozygous mutations R501X and 2282del4 in the gene encoding filaggrin (FLG) as the cause of moderate or severe ichthyosis vulgaris in 15 kindreds. In addition, these mutations are semidominant; heterozygotes show a very mild phenotype with incomplete penetrance. The mutations show a combined allele frequency of ∼4% in populations of European ancestry, explaining the high incidence of ichthyosis vulgaris. Profilaggrin is the major protein of keratohyalin granules in the epidermis. During terminal differentiation, it is cleaved into multiple filaggrin peptides that aggregate keratin filaments. The resultant matrix is cross-linked to form a major component of the cornified cell envelope. We find that loss or reduction of this major structural protein leads to varying degrees of impaired keratinization. [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
- View/download PDF
34. Differing substrate specificities of members of the DYRK family of arginine-directed protein kinases.
- Author
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Campbell, Linda E and Proud, Christopher G
- Subjects
PROTEIN kinases ,TRANSLATION initiation factors (Biochemistry) ,CYTOPLASMIC inheritance ,GLYCOGEN synthase kinase ,PHOSPHORYLATION ,ENZYME kinetics ,ARGININE ,BIOCHEMICAL substrates - Abstract
The mammalian DYRK (dual specificity tyrosine phosphorylated and regulated kinase) family of protein kinases comprises a number of related, but poorly understood enzymes. DYRK1A is nuclear while DYRKs 2 and 3 are cytoplasmic. We recently showed that DYRK2 phosphorylates the translation initiation factor eIF2B at Ser539 in its ϵ-subunit and thereby 'primes' its phosphorylation by glycogen synthase kinase-3. Here we have used peptides based on the sequence around Ser539 to help define the specificity of DYRK2/3 in comparison with DYRK1A. These kinases require an arginine N-terminal to the target residue for efficient substrate phosphorylation. This cannot be replaced even by lysine. A peptide with arginine at −2 is phosphorylated much less well by all three kinases than one with arginine at −3. Replacement of the +1 proline by alanine almost completely eliminates substrate phosphorylation, but valine here does allow phosphorylation especially by DYRK2. This study reveals both similarities and differences in the specificities of these arginine-dependent protein kinases. [ABSTRACT FROM AUTHOR]
- Published
- 2002
- Full Text
- View/download PDF
35. Eukaryotic initiation factor 2B: identification of multiple phosphorylation sites in the e-subunit and their functions in vivo.
- Author
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Wang, Xuemin, Paulin, Fiona E.M., Campbell, Linda E., Gomez, Edith, O'Brien, Kirsty, Morrice, Nicholas, and Proud, Christopher G.
- Subjects
MESSENGER RNA ,PROTEIN kinases ,PROTEIN kinase CK2 ,GLUCANS ,PHOSPHORYLATION ,ENZYMES - Abstract
Eukaryotic initiation factor (elF) 2B is a heteromeric guanine nucleotide exchange factor that plays an important rote in regulating mRNA translation. Here we identify multiple phosphorylation sites in the largest, catalytic, subunit (∊) of mammalian eIF2B. These sites are phosphorylated by four different protein kinases. Two conserved sites (Ser712/713) are phosphorylated by casein kinase 2. They lie at the extreme C-terminus and are required for the interaction of eIF2B∊ with its substrate, eIF2, in vivo and for eIF2B activity in vitro. Glycogen synthase kinase 3 (GSK3) is responsible for phosphorylating Ser535. This regulatory phosphorylation event requires both the fourth site (Ser539) and a distal region, which acts to recruit GSK3 to eIF2B∊ in vivo. The fifth site, which lies outside the catalytic domain of eIF2B∊, can be phosphorylated by casein kinase 1. All five sites are phosphorylated in the eIF2B complex in vivo. [ABSTRACT FROM AUTHOR]
- Published
- 2001
- Full Text
- View/download PDF
36. Multifamily mediation: The use of groups to resolve child custody disputes.
- Author
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Campbell, Linda E. G. and Johnston, Janet R.
- Published
- 1986
- Full Text
- View/download PDF
37. PARENT-CHILD RELATIONSHIPS IN DOMESTIC VIOLENCE FAMILIES DISPUTING CUSTODY.
- Author
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Johnston, Janet R. and Campbell, Linda E. G.
- Published
- 1993
- Full Text
- View/download PDF
38. TRIBAL WARFARE: THE INVOLVEMENT OF EXTENDED KIN AND SIGNIFICANT OTHERS IN CUSTODY AND ACCESS DISPUTES.
- Author
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Johnston, Janet R. and Campbell, Linda E. G.
- Published
- 1986
- Full Text
- View/download PDF
39. Impasse-Directed Mediation With High Conflict Families in Custody Disputes.
- Author
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Campbell, Linda E. G. and Johnston, Janet R.
- Subjects
MEDIATION ,DIVORCED parents ,DIVORCE ,BROKEN homes ,CHILD welfare ,PSYCHOLOGICAL distress - Abstract
In this article we review current mediation models for resolving custody and visitation disputes and their success rates and identify the characteristics of a subpopulation with poor outcome; those parents who are in high conflict, ambivalent about separation, emotionally distressed, and limited in their capacity to protect their children. Based on an understanding of what creates impasses, and how children are affected, we present a new model of mediation for this subpopulation. Preliminary outcome data using this model with 80 families is reported is reported. Implications for establishing a network of services for divorcing families are discussed. [ABSTRACT FROM AUTHOR]
- Published
- 1986
- Full Text
- View/download PDF
40. Phosphorylation of P53 at the Casein Kinase II Site Selectively Regulates p53-Dependent Transcriptional Repression but Not Transactivation.
- Author
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Hall, Susan R., Campbell, Linda E., and Meek, David W.
- Published
- 1996
- Full Text
- View/download PDF
41. Be Healthe for Your Heart: A Pilot Randomized Controlled Trial Evaluating a Web-Based Behavioral Intervention to Improve the Cardiovascular Health of Women with a History of Preeclampsia.
- Author
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Hutchesson, Melinda J., Taylor, Rachael, Shrewsbury, Vanessa A., Vincze, Lisa, Campbell, Linda E., Callister, Robin, Park, Felicity, Schumacher, Tracy L., and Collins, Clare E.
- Published
- 2020
- Full Text
- View/download PDF
42. Cardiovascular disease lifestyle risk factors in people with psychosis: a cross-sectional study.
- Author
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Mucheru, Doreen, Hanlon, Mary-Claire, Campbell, Linda E, McEvoy, Mark, and MacDonald-Wicks, Lesley
- Abstract
Background: People with psychosis die on average 25 years earlier than those in the general population, with cardiovascular disease (CVD) contributing to much of the excess mortality. This cross-sectional study aimed to identify the relationship between lifestyle risk factors for CVD - poor nutrition, smoking and low physical activity levels - and dyslipidaemia, hypertension and hyperglycaemia while controlling for potential confounders in 1825 people from the Survey of High Impact Psychosis (SHIP) in Australia. We also aimed to identify clustering patterns of lifestyle risk factors and associated demographic variables.Methods: Three logistic regressions were used to predict the effect of nutrition, smoking and physical activity on dyslipidaemia, hypertension and hyperglycaemia while controlling for clozapine use, sex and age. Clustering patterns of nutrition, smoking and physical activity were examined using the two-step cluster method which is based on hierarchical cluster analysis. Demographic variables associated with different clusters were identified using measures of association.Results: Smoking status had a positive association with dyslipidaemia (adjusted odds ratio = 0.50; 95% confidence interval = 0.32-0.78; p = 0.002). Other cardiovascular disease lifestyle risk factors did not have a significant relationship with dyslipidaemia, hypertension and hyperglycaemia. Clustering patterns of lifestyle risk factors showed that younger men, with low education levels, and relying on a government pension, were most likely to display the poorest lifestyle risk behaviours. The largest cluster (42%) of participants was characterised by a mixed demographic profile and were most likely to display poor nutrition and low physical activity levels but less likely to smoke.Conclusions: Only smoking status had a significant positive association with dyslipidaemia which could indicate that there are additional factors affecting the relationship between other cardiovascular lifestyle risk factors and dyslipidaemia, hypertension and hyperglycaemia in people with psychosis. Unknown confounders and traditional lifestyle risk factors may explain the high rates of CVD in this group. Clustering of lifestyle risk factors and their demographic profiles could help the design of intervention programs in people with psychosis. [ABSTRACT FROM AUTHOR]- Published
- 2018
- Full Text
- View/download PDF
43. An fMRI study of facial emotion processing in children and adolescents with 22q11.2 deletion syndrome.
- Author
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Azuma, Rayna, Deeley, Quinton, Campbell, Linda E., Daly, Eileen M., Stevens, Angela F., Brammer, Michael J., Ambery, Fiona Z., Owen, Michael J., Murphy, Kieran C., and Murphy, Declan G.M.
- Published
- 2015
- Full Text
- View/download PDF
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