Autism Spectrum Disorders Mothers Research Articles

Received Cradling Bias During the First Year of Life: A Retrospective Study on Children With Typical and Atypical Development.

A population-level left cradling bias exists whereby 60–90% of mothers hold their infants on the left side. This left biased positioning appears to be mutually beneficial to both the mother and the baby's brain organization for processing of socio-emotional stimuli. Previous research connected cradling asymmetries and Autism Spectrum Disorders (ASD), entailing impairment in socio-communicative relationships and characterized by an early hypo-lateralization of brain functions. In this explorative study, we aimed to provide a contribution to the retrospective investigations by looking for early behavioral markers of neurodevelopmental disorders such as ASD. We hypothesized that an atypical trajectory in maternal cradling might be one of the possible signs of an interference in mother-infant socio-emotional communication, and thus of potential neurodevelopmental dysfunctions. To this aim, we examined photos depicting mother-child early cradling interactions by consulting family albums of 27 children later diagnosed with ASD and 63 typically developing children. As regards the first half of the first year of life, no differences were shown between maternal cradling-side preferences in typical and ASD groups, both exhibiting the left-cradling bias in the 0–3 months period, but not in the 3–6 months period. However, our results show dissimilar patterns of cradling preferences during the second half of the first year of life. In particular, the absence of left-cradling shown in typical mothers was not observed in ASD mothers, who exhibited a significant left-cradling bias in the 6–12 months age group. This difference might reflect the fact that mother-infant relationship involving children later diagnosed with ASD might remain “basic” because mothers experience a lack of social activity in such children. Alternatively, it may reflect the overstimulation in which mothers try to engage infants in response to their lack of responsiveness and social initiative. However, further investigations are needed both to distinguish between these two possibilities and to define the role of early typical and reversed cradling experiences on neurodevelopment.

Reducing maternal parenting stress of children with autism spectrum disorder: father's involvement

Objective: To explore the relationship between fathers' nursing time and maternal parenting stress of children with autism spectrum disorder(ASD). Method: Mothers of 98 ASD children who were first diagnosed in the department of Child Health Care, Children's Hospital of Fudan University during June 2015 to January 2016 were included in the ASD group, with mothers of 92 typical children from a Community Maternal and Child Health Hospital and a kindergarten in the control group. The evaluation of parenting stress, parents' nursing time and other related factors were cross-sectionally analyzed. Interview was conducted with the following tools: Parental Stress Index-Short Form(PSI-SF)for maternal parenting stress, and self-made General Parenting Information Questionnaire for nursing time of both parents and other related factors. The relationships were analyzed by Multiple Linear Regression analysis and Wilcoxon Rank-Sum test. Result: Maternal parenting stress of ASD children had a significant negative correlation with father's nursing time in total score of parenting stress, PCDI domain and PD domain (t=-2.76, -2.98, -2.79; P=0.007, 0.004, 0.006), within which PD domain also included family annual income and mothers' nursing time (R(2)=0.22, 0.24, 0.25); while no such correlation was found in control group in terms of father's nursing time(P=0.22, 0.42, 0.06). Wilcoxon Rank-Sum test showed that in 62 (63.3%) double-income ASD families and 72(78.3%) double-income typical families, there were significant differences between ASD fathers' and ASD mothers'and typical fathers'nursing time(2.0(0.5, 2.1)vs. 3.5(2.4, 6.0)vs. 3.0(2.0, 4.7)h, t=-86.32、-49.65, all P<0.01). Conclusion: Lack of fathers' involvements was common in ASD children's families. Increasing these fathers' nursing time, as well as their enthusiasm and initiative in the family intervention could relieve maternal parenting stress and improve the intervention pattern of ASD children.

An Autistic Endophenotype and Testosterone Are Involved in an Atypical Decline in Selective Attention and Visuospatial Processing in Middle-Aged Women.

Mothers of offspring with autism spectrum disorders (ASD) could present mild forms of their children’s cognitive characteristics, resulting from prenatal brain exposure and sensitivity to testosterone (T). Indeed, their cognition is frequently characterized by hyper-systemizing, outperforming in tests that assess cognitive domains such as selective attention, and fine motor and visuospatial skills. In the general population, all these start to decline around the mid-forties. This study aimed to characterize whether middle-aged women who are biological mothers of individuals with ASD had better performance in the aforementioned cognitive skills than mothers of normative children (in both groups n = 22; mean age = 45), using the standardized Stroop and mirror-drawing tests. We also examined the role of T in their performance in the aforementioned tests. ASD mothers outperformed controls in both tests, giving more correct answers and making fewer mistakes. In addition, they presented higher T levels, which have been associated with better cognitive performance. Cognitive decline in specific skills with aging could be delayed in these middle-aged women, corresponding to a cognitive endophenotype, T playing an important role in this process.

Increased female autosomal burden of rare copy number variants in human populations and in autism families.

Autosomal genetic variation is presumed equivalent in males and females and makes a major contribution to disease risk. We set out to identify whether maternal copy number variants (CNVs) contribute to autism spectrum disorders (ASDs). Surprisingly, we observed a higher autosomal burden of large, rare CNVs in females in the population, reflected in, but not unique to, ASD families. Meta-analysis across control data sets confirms female excess in CNV number (P=2.1 × 10(-5)) and gene content (P=4.1 × 10(-3)). We additionally observed CNV enrichment in ASD mothers compared with control mothers (P=0.03). We speculate that tolerance for CNV burden contributes to decreased female fetal loss in the population and that ASD-specific maternal CNV burden may contribute to high sibling recurrence. These data emphasize the need for study of familial CNV risk factors in ASDs and the requirement of sex-matched comparisons.

Self-Perceived Health of Parents of Children with Autism Spectrum Disorders: Relation with the Severity Level

Children with autism spectrum disorders (ASD) are characterized by deficits in reciprocal social interaction and communication which have a major effect on the quality of life of the parents. Self-perceived health of 124 ASD parents was investigated using the short-form health survey (SF-36) questionnaire. In a first step, comparative analysis was performed between a control group of parents and three groups of ASD parents classified according to the severity levels for autism spectrum disorder. In a second step, correlation analysis was performed between the self-perceived health of ASD parents and a continuous rating scale of the severity level of ASD children, determined with the Childhood Autistic Rating Scale (CARS) and the Autism Diagnostic Observation Schedule-Generic (ADOS-G). Results show that as the severity level of ASD symptoms increase, mother’s perception of their own health decreases. Statistical analysis revealed a very strong relationship between the Mental Health of the mothers and the ASD children, especially with the deficit in social interaction. Restrictive and repetitive behavior and difficulty in play have less direct impact on the quality of life of ASD mothers. The highest impairment in quality of life was observed for the mothers of severe autism children, in the time spent at work and the difficulty to perform activities, due to mental and physical problems. Relationship between fathers and ASD children is significantly lower than that observed for mothers, except for problems with work or other daily activities as a result of physical health. These finding must be taken into account to provide better and more focused support to ASD mothers, in order to improve the mental health and to reduce the difficulty in performing activities.

Brain-reactive IgG correlates with autoimmunity in mothers of a child with an autism spectrum disorder

It is believed that in utero environmental factors contribute to autism spectrum disorder (ASD). The goal of this study was to demonstrate, using the largest cohort reported so far, that mothers of an ASD child have an elevated frequency of anti-brain antibodies and to assess whether brain reactivity is associated with an autoimmune diathesis of the mother. We screened plasma of 2431 mothers of an ASD child from Simon Simplex Collection and plasma of 653 unselected women of child-bearing age for anti-brain antibodies using immunohistology on mouse brain. Positive and negative plasma from mothers with an ASD child were analyzed for anti-nuclear antibodies and for autoimmune disorders. Mothers of an ASD child were four times more likely to harbor anti-brain antibodies than unselected women of child-bearing age (10.5 vs 2.6%). A second cohort from The Autism Genetic Resource Exchange with multiplex families displayed an 8.8% prevalence of anti-brain antibodies in the mothers of these families. Fifty-three percent of these mothers with anti-brain antibodies also exhibited anti-nuclear autoantibodies compared with 13.4% of mothers of an ASD child without anti-brain antibodies and 15% of control women of child-bearing age. The analysis of ASD mothers with brain-reactive antibodies also revealed an increased prevalence of autoimmune diseases, especially rheumatoid arthritis and systemic lupus erythematosus. This study provides robust evidence that brain-reactive antibodies are increased in mothers of an ASD child and may be associated with autoimmunity. The current study serves as a benchmark and justification for studying the potential pathogenicity of these antibodies on the developing brain. The detailed characterization of the specificity of these antibodies will provide practical benefits for the management and prevention of this disorder.

Increased rates of depressed mood in mothers of children with ASD associated with the presence of the broader autism phenotype

This study examined the relationship between the broader autism phenotype (BAP) and depressed mood in mothers of children with and without autism spectrum disorders (ASD). One hundred and sixty-five mothers (71 with an ASD child and 94 with a non-ASD child) completed a survey of child autism severity (ASD mothers only), parenting stress, BAP, and depression. Mothers of children with ASD reported greater depressed mood, higher parenting stress, and more characteristics associated with the BAP than mothers of children without ASD. For mothers of children with ASD, the BAP uniquely predicted number of depressive symptoms after controlling for child autism severity and parenting stress. In the full sample, the relationship between group status and depressed mood was no longer significant after controlling for parenting stress and maternal BAP. These findings suggest that the higher rate of depression found in mothers of children with ASD may be attributed both to the increased stress of raising a child with ASD, as well as a greater number of autistic features in the mothers that may place them at higher risk for developing depression.

Use of M-CHAT for a multinational screening of young children with autism in the Arab countries

There has been a decline in the mortality rate among infants and children under five years of age in the last decade in many developing countries. This has led to a shift in focus to look beyond survival to the prevention or reduction of impairment and promotion of children's health. With the apparent rise in the prevalence of autism spectrum disorders (ASD) in the Arab countries the development of an Arabic tool for early diagnosis and intervention was sought as part of an effort to better understand the prevalence of this disorder. The Modified Checklist for Autism in Toddlers (M-CHAT) was chosen. The study was conducted in nine Arabic speaking countries. The final analysis included 228 children (122 screened positive for ASD). The sensitivity (0.86), the specificity (0.80) and positive predictive value (0.88) were very similar to Robins et al. study (2001). Maternal health problems during pregnancy and labour were found to be more significant for ASD mothers than their control. In addition, child health problems were more evident among ASD subjects as reported by their parents with significant differences from controls. The limitation of the study is that the sample size is not large enough to generalize the results to all countries of the region. The strength of the study is that it is the first known study where Arab countries undertook a collaborative mental health study using the same tool for screening for a specific disorder.