Parental brain: cerebral areas activated by infant cries and faces. A comparison between different populations of parents and not.

Literature about parenting traditionally focused on caring behaviors and parental representations. Nowadays, an innovative line of research, interested in evaluating the neural areas and hormones implicated in the nurturing and caregiving responses, has developed. The only way to permit a newborn to survive and grow up is to respond to his needs and in order to succeed it is necessary, \ufb01rst of all, that the adults around him understand what his needs are. That is why adults\u2019 capacity of taking care of infants cannot disregard from some biological mechanisms, which allow them to be more responsive to the progeny and to infants in general. Many researches have proved that exist speci\ufb01c neural basis activating in response to infant evolutionary stimuli, such as infant cries and infant emotional facial expression. There is a sort of innate predisposition in human adults to respond to infants\u2019 signals, in order to satisfy their need and allow them to survive and become young adults capable of taking care of themselves. This article focuses on research that has investigated, in the last decade, the neural circuits underlying parental behavioral responses. Moreover, the paper compares the results of those studies that investigated the neural responses to infant stimuli under different conditions: familiar versus unknown children, parents versus non-parents and normative versus clinical samples (depression, addiction, adolescence, and PTSD)

Emotional availability, neuropsychological functioning, and psychopathology. The context of parental substance use disorder

Parental Substance Use Disorder (SUD) constitutes a high-risk condition for parent-child interactions and child development. Empirical evidence indicates high rates of psychopathology and neuropsychological impairments in individuals with SUD. Despite research indicating that parenting skills are related to psychological well-being and cognitive/neuropsychological functioning, prior studies have not examined the associations between these areas of parental functioning and the quality of parent-child interactions in the context of SUD. Aim(s). The present study adopts an integrated perspective to investigate the way in which maternal neuropsychological functioning and psychopathology are associated with mother-child emotional availability (EA), in the context of parental Substance Use Disorder. Methods. Twenty-nine mothers with SUD were assessed in interaction with their children, as well as with respect to their neuropsychological functioning and psychopathology. Results. In this group, high rates of maternal neuropsychological impairments and psychopathology, as well as generally low levels of EA, were uncovered. Regression analyses showed that maternal neuropsychological functioning was significantly associated with mother-child EA, specifically sensitivity; the role of maternal psychopathology, however, was only marginally significant. Conclusion. In the context of SUD, maternal neuropsychological impairments are significantly associated with mother-child EA. Clinical implications of the findings are discussed

How Do Maternal Subclinical Symptoms Influence Infant Motor Development during the First Year of Life?

An unavoidable reciprocal influence characterizes the mother-child dyad. Within this relationship, the presence of depression, somatization, hostility, paranoid ideation, and interpersonal sensitivity symptoms at a subclinical level and their possible input on infant motor competences has not been yet considered. Bearing in mind that motor abilities represent not only an indicator of the infant\u2019s health-status, but also the principal field to infer his/her needs, feelings and intentions, in this study the quality of infants\u2019 movements were assessed and analyzed in relationship with the maternal attitudes. The aim of this research was to investigate if/how maternal symptomatology may pilot infant\u2019s motor development during his/her first year of life by observing the characteristics of motor development in infants aged 0\u201311 months. Participants included 123 mothers and their infants (0\u201311 months-old). Mothers\u2019 symptomatology was screened with the Symptom Checklist-90-Revised (SCL-90-R), while infants were tested with the Peabody Developmental Motor Scale-Second Edition. All dyads belonged to a non-clinical population, however, on the basis of SCL-90-R scores, the mothers\u2019 sample was divided into two groups: normative and subclinical. Descriptive, t-test, correlational analysis between PDMS-2 scores and SCL-90-R results are reported, as well as regression models results. Both positive and negative correlations were found between maternal perceived symptomatology, Somatization (SOM), Interpersonal Sensitivity (IS), Depression (DEP), Hostility (HOS), and Paranoid Ideation (PAR) and infants\u2019 motor abilities. These results were further verified by applying regression models to predict the infant\u2019s motor outcomes on the basis of babies\u2019 age and maternal status. The presence of positive symptoms in the SCL-90-R questionnaire (subclinical group) predicted good visual-motor integration and stationary competences in the babies. In particular, depressive and hostility feelings in mothers seemed to induce an infant motor behavior characterized by a major control of the environmental space. When mothers perceived a higher level of hostility and somatization, their babies showed difficulties in sharing action space, such as required in the development of stationary positions and grasping abilities. In a completely different way, when infants can rely on a mother with low-perceived symptoms (normative group) his/her motor performances develop with a higher degree of freedom/independence. These findings suggest, for the first time, that even in a non- clinical sample, mother\u2019s perceived-symptoms can produce important consequences not in infant motor development as a whole, but in some specific areas, contributing to shape the infant\u2019s motor ability and his/her capability to act in the world

Perceived maternal symptomatology and its influence on newborn’s motor development. Study on non-clinical mother-infant (1-11 months) dyads.

Introduction: Newborn’s first approach to the world takes place in the relationship with his/her mother. He/she builds his/her-own experiences from mother's repertoire of facial expressions, voices, gestures. Contemporarily, the process of becoming mother entails a wide range of changes, which may lead to psychopathology conditions, among which post-partum depression is the most common. This disease is known to negatively influence maternal abilities and produce feelings of greater struggle in caring the infant, sense of guilty and poor self-efficacy. Motor development represents the principal field of observation in helping to infer infant's needs, feelings and intentions. Its investigation may be a powerful means to understand the influence of maternal attitudes (e.g. depressive-symptoms) on infant motor-development. Aims of the study: The main aim of this research was to investigate the characteristics of motor- development in infants aged 1-11 months, and if/how maternal depressive-symptomatology may influence infant's motor-development during his/her first year of life. Material&Methods: Data were collected within the wider Italian-validation-project of the Peabody Developmental Motor Scale-II (PDMS-2). Participants included 123 infants (1-11 months old) with their mothers. Infants were tested with PDMS-2 and mothers’ symptomatology was screened with SCL-90-TR and CES-D. All dyads belong to non-clinical population. We calculated correlational- and regression-analysis between PDMS-2,SCL-90 and CES-D. Results: The best predictor of infants’ motor-performance is the age in months. Perceived maternal somatization negatively predicted infants’ Fine-Motor-scores. On the contrary, positive correlations were found between depressive perceived symptoms, InterpersonalSensitivity, Hostility and Paranoid Ideation and infants Gross- Motor abilities, especially Locomotion. Conclusions: Results suggest that mother's perceived symptoms influence the ability of the infant to move trough the space, while perceived levels of somatization negatively predict his/her fine- motor development. Age-in-months is the most accurate predictor of motor-performance. Further analyses are needed to better understand relationship between maternal-symptomatology and infant motor-skills

Fine-grained provenance for high-quality data science

In this work we analyze the typical operations of data preparation within a machine learning process, and provide infrastructure for generating very granular provenance records from it, at the level of individual elements within a dataset. Our contributions include: (i) the formal definition of a core set of preprocessing operators, (ii) the definition of provenance patterns for each of them, and (iii) a prototype implementation of an application-level provenance capture library that works alongside Python.</p

Local Enhancement of Lipid Membrane Permeability Induced by Irradiated Gold Nanoparticles

Photothermal therapies are based on the optical excitation of plasmonic nanoparticles in the biological environment. The effects of the irradiation on the biological medium depend critically on the heat transfer process at the nanoparticle interface, on the temperature reached by the tissues, as well as on the spatial extent of temperature gradients. Unfortunately, both the temperature and its biological effects are difficult to be probed experimentally at the molecular scale. Here, we approach this problem using nonequilibrium molecular dynamics simulations. We focus on photoporation, a photothermal application based on the irradiation of gold nanoparticles by single, short-duration laser pulses. The nanoparticles, stably bound to cell membranes, convert the radiation into heat, inducing transient changes of membrane permeability. We make a quantitative prediction of the temperature gradient around the nanoparticle upon irradiation by typical experimental laser fluences. Water permeability is locally enhanced around the nanoparticle, in an annular region that extends only a few nanometers from the nanoparticle interface. We correlate the local enhancement of permeability at the nanoparticle-lipid interface to the temperature inhomogeneities of the membrane and to the consequent availability of free volume pockets within the membrane core

Au Nanoparticles in Lipid Bilayers: a Comparison between Atomistic and Coarse Grained Models

The computational study of the interaction between charged, ligand-protected metal nanoparticles and model lipid membranes has been recently addressed both at atomistic and coarse grained level. Here we compare the performance of three versions of the coarse grained Martini force field at describing the nanoparticle-membrane interaction. The three coarse-grained models differ in terms of treatment of long-range electrostatic interactions and water polarizability. The NP-membrane interaction consists in the transition from a metastable NP- membrane complex, in which the NP is only partially embedded in the membrane, to a configuration in which the NP is anchored to both membrane leaflets. All the three coarse grained models provide a description of the metastable NP-membrane complex that is consistent with that obtained using an atomistic force field. As for the anchoring transition, the polarizable- water Martini correctly describes the molecular mechanisms and the energetics of the transition. The standard version of the Martini model, instead, underestimates the free energy barriers for anchoring and does not completely capture the membrane deformations involved in the transition process

Drug addicted mothers and their empathic reactivity to painful cues.

Introduction: Mother-infant relationship is crucial for offspring\u2019s development. Substance-abuse has been shown to affect adults\u2019 ability to care for their children, in particular in the affective- relational aspects of parenting, such as the attachment bond and the ability to provide protection. Surprisingly, no previous study has explored neural responses associated with empathy towards children\u2019s pain in mothers with such history. Empathy is a more general construct than parenting and deficits in neural empathic responses may better explain failures in caring of addicted mothers. Aims of the study: This study was aimed at investigating the empathic response to pain inflicted by a dangerous tool to hands of kids when compared to neutral situations in a sample of mothers with history of drug-abuse. We used Event-Related Potentials (ERPs) technique to explore the time-course of neural empathic responses to pain by virtue of its excellent time resolution. In particular, we asked whether empathic responses to pain of children would differ in drug-addicted mothers compared to control group, during a relatively automatic early stage of processing or during a more controlled delayed one involving mentalizing. Material and methods: Event-related potentials (ERPs) have been recorded from drug-addicted mothers (i.e., clinical) and control groups to track neural activity in a pain decision task. Stimuli were pictures showing one infant hand in painful (harmful object applied to the hand) and neutral situations (harmful object located close to the hand). Results: Neural empathic responses towards children in pain differed between the two groups such that ERPs diverged between the painful and neutral stimulation at delayed stages of processing only for the clinical group. Conclusions: We interpreted these results as indicating that the control group implicitly judged also the neutral situations involving children as potentially painful supporting a lack of mentalizing abilities in the clinical group when compared with controls

Combined MITOchondrial-NUCLEAR (MITO-NUCLEAR) Analysis for Mitochondrial Diseases Diagnosis: Validation and Implementation of a One-Step NGS Method

Background: Next-generation sequencing (NGS) technology is revolutionizing diagnostic screening for mitochondrial diseases (MDs). Moreover, an investigation by NGS still requires analyzing the mitochondrial genome and nuclear genes separately, with limitations in terms of time and costs. We describe the validation and implementation of a custom blended MITOchondrial-NUCLEAR (MITO-NUCLEAR) assay for the simultaneous identification of genetic variants both in whole mtDNA and in nuclear genes included in a clinic exome panel. Furthermore, the MITO-NUCLEAR assay, implemented in our diagnostic process, has allowed us to arrive at a molecular diagnosis in a young patient. Methods: Massive sequencing strategy was applied for the validation experiments, performed using multiple tissues (blood, buccal swab, fresh tissue, tissue from slide, and formalin-fixed paraffin-embedded tissue section) and two different blend-in ratios of the mitochondrial probes: nuclear probes; 1:900 and 1:300. Results: Data suggested that 1:300 was the optimal probe dilution, where 100% of the mtDNA was covered at least 3000×, the median coverage was >5000×, and 93.84% of nuclear regions were covered at least 100×. Conclusions: Our custom Agilent SureSelect MITO-NUCLEAR panel provides a potential "one-step" investigation that may be applied to both research and genetic diagnosis of MDs, allowing the simultaneous discovery of nuclear and mitochondrial mutations

Acute Tolerability of Methylphenidate in Treatment-Naïve Children with ADHD: An Analysis of Naturalistically Collected Data from Clinical Practice

OBJECTIVES: The acute tolerability of methylphenidate (MPH) in children with attention-deficit/hyperactivity disorder (ADHD) has been studied mainly in research samples. Taking advantage of the mandatory test-dose procedure required for starting MPH in Italy, this study aimed to assess the incidence of intolerable adverse events after initial exposure to MPH in routine clinical practice. METHODS: The medical records of 480 consecutively treated, previously drug-naïve children and adolescents with ADHD (90% male, mean age 10.6 ± 3.0 years) were retrospectively analyzed. All children received an initial single dose of MPH immediate release (5 or 10 mg) followed by a 4-hour direct medical observation. Heart rate and blood pressure were measured at dosing and 1, 2, and 3 hours afterwards. If the first dose was well tolerated, the child continued treatment with MPH 5–20 mg daily, and was reassessed a week later. RESULTS: Eleven patients (2.3%, 95% CI 1.1–4.1) interrupted treatment within a week of initiation because of the following adverse events: irritability (n = 3), tics worsening (n = 3), reduced appetite (n = 1), enuresis (n = 1), hallucinations (n = 1), hyperfocus (n = 1), and ‘rebound’ behavioral worsening (n = 1). The most common adverse events were reduced appetite (20%), irritability (14.2%), headache (10.6%), sleep problems (9.4%), stomachache (9.4%), and tics (5%). Intellectual disability increased the risk of any adverse event in general and of irritability in particular. No cardiovascular symptom was clinically reported. However, routine assessments of vital signs during the first 3 hours after the first dose of MPH showed that 9% of the children had a 20% increase in heart rate, 8.8% had a 20% increase in diastolic blood pressure and 4.5% had a 20% increase in systolic blood pressure. Of these, 25.2% still had an elevated heart rate 1 week later. CONCLUSIONS: Among stimulant-naïve children in clinical practice, the incidence of acute MPH intolerance can be estimated to be between 1.2 and 4.1%. An asymptomatic elevation in cardiovascular parameters can be observed in about 1 out of 10 children and warrants monitoring during ongoing treatment