Browsing by Author "Grujicic, Roberto (57204161597)"
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Publication Assessing Internal Consistency of the Autism Spectrum Disorder Gastrointestinal and Related Behaviors Inventory and the Frequency and Socio-Emotional Correlates of Gastrointestinal Difficulties in Children With the Autism Spectrum Disorder: A Cross-Sectional Study(2025) ;Lestarevic, Sanja (57220194732) ;Mihailovich, Marija (6507642748) ;Vlaisavljevic, Milica (58988428700) ;Kalanj, Marko (55115710400) ;Grujicic, Roberto (57204161597) ;Maravic, Vanja Mandic (59668095000) ;Mitkovic-Voncina, Marija (56493176300) ;Holingue, Calliope (57193445901)Pejovic-Milovancevic, Milica (57218683898)Gastrointestinal (GI) difficulties are common in children diagnosed with autism spectrum disorder (ASD). However, these difficulties can frequently remain unrecognized. Therefore, we aimed to translate a newly developed instrument, The Autism Spectrum Disorder Gastrointestinal and Related Behaviors Inventory in Children (ASD-GIRBI), to assess its reliability and to explore the frequency of various gastrointestinal difficulties and related behaviors, as well as to explore the association of GI difficulties with the measures of social functioning and emotional and behavioral difficulties in children with ASD. A total of 98 children and adolescents (aged 4–18 [Mage = 10.67 ± 3.705], 82.7% male), previously diagnosed with ASD at the Institute of Mental Health in Belgrade, Serbia, took part in this research. Their parents filled out the following questionnaires: ASD-GIRBI (an assessment of gastrointestinal and related symptoms), Stanford Social Dimensions Scale (SSDS) (a measure of social functioning) and Strengths and Difficulties Questionnaire (SDQ) (a measure of emotional and behavioral problems). Our results indicate that the ASD-GIRBI is a reliable instrument for GI difficulties assessment (Cronbach's α = 0.841) with the total score successfully discriminating between the participants with and without a GI disorder diagnosis (p = 0.040). Any gastrointestinal symptom was present in 54.1% of the participants, most commonly flatulence, diarrhea, and constipation. The severity of gastrointestinal difficulties correlated to emotional problems (r = 0.261, p < 0.01), conduct problems (r = 0.219, p < 0.05), hyperactivity (r = 0.381, p < 0.01), peer problems (r = 0.266, p < 0.01), total difficulties (r = 0.454, p < 0.01) and total difficulties impact (r = 0.321, p < 0.01). Our data emphasize the potential importance of GI difficulties for various areas of functioning of individuals with ASD. © 2025 International Society for Autism Research and Wiley Periodicals LLC. - Some of the metrics are blocked by yourconsent settings
Publication Assessing Internal Consistency of the Autism Spectrum Disorder Gastrointestinal and Related Behaviors Inventory and the Frequency and Socio-Emotional Correlates of Gastrointestinal Difficulties in Children With the Autism Spectrum Disorder: A Cross-Sectional Study(2025) ;Lestarevic, Sanja (57220194732) ;Mihailovich, Marija (6507642748) ;Vlaisavljevic, Milica (58988428700) ;Kalanj, Marko (55115710400) ;Grujicic, Roberto (57204161597) ;Maravic, Vanja Mandic (59668095000) ;Mitkovic-Voncina, Marija (56493176300) ;Holingue, Calliope (57193445901)Pejovic-Milovancevic, Milica (57218683898)Gastrointestinal (GI) difficulties are common in children diagnosed with autism spectrum disorder (ASD). However, these difficulties can frequently remain unrecognized. Therefore, we aimed to translate a newly developed instrument, The Autism Spectrum Disorder Gastrointestinal and Related Behaviors Inventory in Children (ASD-GIRBI), to assess its reliability and to explore the frequency of various gastrointestinal difficulties and related behaviors, as well as to explore the association of GI difficulties with the measures of social functioning and emotional and behavioral difficulties in children with ASD. A total of 98 children and adolescents (aged 4–18 [Mage = 10.67 ± 3.705], 82.7% male), previously diagnosed with ASD at the Institute of Mental Health in Belgrade, Serbia, took part in this research. Their parents filled out the following questionnaires: ASD-GIRBI (an assessment of gastrointestinal and related symptoms), Stanford Social Dimensions Scale (SSDS) (a measure of social functioning) and Strengths and Difficulties Questionnaire (SDQ) (a measure of emotional and behavioral problems). Our results indicate that the ASD-GIRBI is a reliable instrument for GI difficulties assessment (Cronbach's α = 0.841) with the total score successfully discriminating between the participants with and without a GI disorder diagnosis (p = 0.040). Any gastrointestinal symptom was present in 54.1% of the participants, most commonly flatulence, diarrhea, and constipation. The severity of gastrointestinal difficulties correlated to emotional problems (r = 0.261, p < 0.01), conduct problems (r = 0.219, p < 0.05), hyperactivity (r = 0.381, p < 0.01), peer problems (r = 0.266, p < 0.01), total difficulties (r = 0.454, p < 0.01) and total difficulties impact (r = 0.321, p < 0.01). Our data emphasize the potential importance of GI difficulties for various areas of functioning of individuals with ASD. © 2025 International Society for Autism Research and Wiley Periodicals LLC. - Some of the metrics are blocked by yourconsent settings
Publication Autism spectrum disorders and perinatal complications — Is oxidative stress the connection?(2019) ;Mandic-Maravic, Vanja (56663255900) ;Mitkovic-Voncina, Marija (56493176300) ;Pljesa-Ercegovac, Marija (16644038900) ;Savic-Radojevic, Ana (16246037100) ;Djordjevic, Miroslav (7102319341) ;Pekmezovic, Tatjana (7003989932) ;Grujicic, Roberto (57204161597) ;Ercegovac, Marko (7006226257) ;Simic, Tatjana (6602094386) ;Lecic-Tosevski, Dusica (6602315043)Pejovic-Milovancevic, Milica (57218683898)Background: Autism spectrum disorders (ASD) are complex psychiatric disorders, with gene environment interaction being in the basis of their etiology. The association of perinatal complications and ASD is well established. Recent findings suggested that oxidative stress and polymorphism in genes encoding antioxidant enzymes might be involved in the development of ASD. Glutathione transferases (GSTs) have an important role in the antioxidant defense system. We aimed to establish whether the predictive effects of prenatal and perinatal complications (as possible oxidative stress inducers) on ASD risk are dependent on GST polymorphisms. Methods: The study included 113 ASD cases and 114 age-and sex group-matched healthy controls. All participants were genotyped for GSTA1, GSTM1, GSTT1, and GSTP1 polymorphisms. The questionnaire regarding prenatal and perinatal risk factors and complications was administered for all the subjects in the study. Results: The evaluated perinatal complications as a group significantly increased the risk of ASD [odds ratio (OR) = 9.415; p = 0.000], as well as individual perinatal complications, such as prematurity (OR = 11.42; p = 0.001), neonatal jaundice (OR = 8.774; p = 0.000), respiratory distress syndrome (OR = 4.835; p = 0.047), and the use of any medication during pregnancy (OR = 2.413; p = 0.03). In logistic regression model, adding GST genotypes did not modify the significant effects found for prematurity and neonatal jaundice as risk factors in ASD. However, there was a significant interaction of GST genotype with medication use during pregnancy and the use of tocolytics during pregnancy, which was predictive of ASD risk only in carriers of GSTM1-null, as opposed to carriers of GSTM1-active genotype. Conclusion: Specific perinatal complications may be significant risk factors for ASD. GSTM1 genotype may serve as a moderator of the effect of some prenatal factors on the risk of ASD such as using medication during pregnancy. It may be speculated that different oxidative stress-related genetic and environmental factors could lead to development of ASD. Apart from etiological mechanisms, possible therapeutic implications in ASD are also discussed. © 2019 Mandic-Maravic, Mitkovic-Voncina, Pljesa-Ercegovac, Savic-Radojevic, Djordjevic, Pekmezovic, Grujicic, Ercegovac, Simic, Lecic-Tosevski and Pejovic-Milovancevic. - Some of the metrics are blocked by yourconsent settings
Publication Changes in hospital treatment of children and adolescents with mental health problems(2020) ;Pejovic-Milovancevic, Milica (57218683898) ;Grujicic, Roberto (57204161597) ;Stojkovic, Ana (57192180591)Radosavljev-Kircanski, Jelena (54793436300)[No abstract available] - Some of the metrics are blocked by yourconsent settings
Publication Dopamine in Autism Spectrum Disorders—Focus on D2/D3 Partial Agonists and Their Possible Use in Treatment(2022) ;Mandic-Maravic, Vanja (56663255900) ;Grujicic, Roberto (57204161597) ;Milutinovic, Luka (57455766700) ;Munjiza-Jovanovic, Ana (55583599900)Pejovic-Milovancevic, Milica (57218683898)Autism spectrum disorders (ASD) are a group of disorders characterized by impairment in social communication and repetitive and stereotyped behaviors. ASD etiology is very complex, including the effect of both genetic and environmental factors. So far, no specific treatment for the core symptoms of ASD has been developed, although attempts have been made for the treatment of repetitive behavior. The pharmacological treatment is aimed at treating non-specific symptoms such as irritability and aggression. Recent studies pointed out to the possible role of altered dopamine signaling in mesocorticolimbic and nigrostriatal circuits in ASD. In addition, several research pointed out to the association of dopamine receptors polymorphism and ASD, specifically repetitive and stereotyped behavior. In this paper, we will provide a review of the studies regarding dopamine signaling in ASD, existing data on the effects of D2/D3 partial agonists in ASD, possible implications regarding their individual receptor profiles, and future perspectives of their possible use in ASD treatment. Copyright © 2022 Mandic-Maravic, Grujicic, Milutinovic, Munjiza-Jovanovic and Pejovic-Milovancevic. - Some of the metrics are blocked by yourconsent settings
Publication Epilepsy and interictal epileptiform activity in patients with autism spectrum disorders(2019) ;Milovanovic, Maja (57198020720) ;Radivojevic, Vlada (6603091521) ;Radosavljev-Kircanski, Jelena (54793436300) ;Grujicic, Roberto (57204161597) ;Toskovic, Oliver (28867554600) ;Aleksić-Hil, Olivera (36454761400)Pejovic-Milovancevic, Milica (57218683898)Purpose: The purpose of this study was to determine the prevalence of epilepsy and subclinical epileptiform abnormalities in children with autism spectrum disorder (ASD), and to investigate its effects on core autistic symptoms and adaptive behavior skills. Methods: Patients with diagnosis of ASD who met full criteria on Autism Diagnostic Interview-Revised (ADI-R) were included in the study. Adaptive behavior skills were assessed by Vineland Adaptive Behavior Scale-II (VABS-II). Clinical assessment for epilepsy and video electroencephalography (EEG) (v-EEG) examinations during wakefulness and/or sleep were prospectively performed in all patients. Results: A total of 112 patients with diagnosis of ASD of mean age 6.58 ± 3.72 were included in the study. Based on clinical and v-EEG assessments, three groups of patients were defined: 1) patients with epilepsy (n = 17; 15.2%); 2) patients with epileptiform discharges in absence of clinical seizures (n = 14; 12.5%); 3) patients without epilepsy and without epileptiform discharges (n = 81; 72.3%). There were no significant differences between three groups of patients on ADI-R subscores. Speech development was also not significantly related to epilepsy. There was a slight tendency of the VABS-II motor skills score to be higher in the group of patients with autism without clinical diagnosis of epilepsy and without subclinical epileptiform discharges (p < 0.05) in comparison with the two other groups. According to this tendency, we might claim that patients with higher scores on motor skills could have 0.88 times lower odds for having epileptiform EEG activity. Conclusions: According to our results, we were not able to detect differences in the ADI-R between the three populations with ASD, all with unknown etiology. Epilepsy, as well as subclinical epileptic discharges, showed small effects on Motor Skills in patients with autism, and had no effect on adaptive behavior Communication/Socialization/Daily Living Skills. © 2018 Elsevier Inc. - Some of the metrics are blocked by yourconsent settings
Publication Epilepsy and interictal epileptiform activity in patients with autism spectrum disorders(2019) ;Milovanovic, Maja (57198020720) ;Radivojevic, Vlada (6603091521) ;Radosavljev-Kircanski, Jelena (54793436300) ;Grujicic, Roberto (57204161597) ;Toskovic, Oliver (28867554600) ;Aleksić-Hil, Olivera (36454761400)Pejovic-Milovancevic, Milica (57218683898)Purpose: The purpose of this study was to determine the prevalence of epilepsy and subclinical epileptiform abnormalities in children with autism spectrum disorder (ASD), and to investigate its effects on core autistic symptoms and adaptive behavior skills. Methods: Patients with diagnosis of ASD who met full criteria on Autism Diagnostic Interview-Revised (ADI-R) were included in the study. Adaptive behavior skills were assessed by Vineland Adaptive Behavior Scale-II (VABS-II). Clinical assessment for epilepsy and video electroencephalography (EEG) (v-EEG) examinations during wakefulness and/or sleep were prospectively performed in all patients. Results: A total of 112 patients with diagnosis of ASD of mean age 6.58 ± 3.72 were included in the study. Based on clinical and v-EEG assessments, three groups of patients were defined: 1) patients with epilepsy (n = 17; 15.2%); 2) patients with epileptiform discharges in absence of clinical seizures (n = 14; 12.5%); 3) patients without epilepsy and without epileptiform discharges (n = 81; 72.3%). There were no significant differences between three groups of patients on ADI-R subscores. Speech development was also not significantly related to epilepsy. There was a slight tendency of the VABS-II motor skills score to be higher in the group of patients with autism without clinical diagnosis of epilepsy and without subclinical epileptiform discharges (p < 0.05) in comparison with the two other groups. According to this tendency, we might claim that patients with higher scores on motor skills could have 0.88 times lower odds for having epileptiform EEG activity. Conclusions: According to our results, we were not able to detect differences in the ADI-R between the three populations with ASD, all with unknown etiology. Epilepsy, as well as subclinical epileptic discharges, showed small effects on Motor Skills in patients with autism, and had no effect on adaptive behavior Communication/Socialization/Daily Living Skills. © 2018 Elsevier Inc. - Some of the metrics are blocked by yourconsent settings
Publication How are parental practices and attitudes towards corporal punishment related to child academic, developmental, or psychological–emotional dysfunctioning?(2023) ;Grujicic, Roberto (57204161597) ;Toskovic, Oliver (28867554600) ;Lazarević, Ljiljana B. (24481691500) ;Mandic-Maravic, Vanja (56663255900) ;Mitkovic-Voncina, Marija (56493176300) ;Radanović, Ana (57222529658) ;Radosavljev-Kircanski, Jelena (54793436300) ;Videnović, Marina (35485972900) ;Pekmezovic, Tatjana (7003989932)Pejovic Milovancevic, Milica (57218683898)Corporal punishment (CP) is a widely spread disciplining practice among parents and caregivers globally. Our paper aimed to explore the relationship between the parental attitudes towards CP, expected outcomes of CP, and parenting practices on one hand, with the reported dysfunctions of their children, on the other. Additionally, we aimed to explore the relationship between the use of CP and the reported academic, developmental, and psychological–emotional dysfunctions of their children. The present study involved a nationally representative sample of 1186 parents in Serbia, who had at least one child aged 0–18 years at the moment of interviewing. The parents filled out a series of questionnaires on their attitudes towards CP, expectations of CP outcomes, and their parental practices. Findings indicate that parents that report having a child with dysfunctions have positive attitudes towards CP and expect positive outcomes of CP. These parents also report using more CP as a disciplining method, as well as other harsh disciplining practices. We also identified parental positive expectations of CP, use of physical assault, psychological aggression, neglect as significant predictors of reported child dysfunctions severity. Having all the results in mind, we can assume that children with health-related and school-related issues might be at potential risk of further maltreatment. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany. - Some of the metrics are blocked by yourconsent settings
Publication How are parental practices and attitudes towards corporal punishment related to child academic, developmental, or psychological–emotional dysfunctioning?(2023) ;Grujicic, Roberto (57204161597) ;Toskovic, Oliver (28867554600) ;Lazarević, Ljiljana B. (24481691500) ;Mandic-Maravic, Vanja (56663255900) ;Mitkovic-Voncina, Marija (56493176300) ;Radanović, Ana (57222529658) ;Radosavljev-Kircanski, Jelena (54793436300) ;Videnović, Marina (35485972900) ;Pekmezovic, Tatjana (7003989932)Pejovic Milovancevic, Milica (57218683898)Corporal punishment (CP) is a widely spread disciplining practice among parents and caregivers globally. Our paper aimed to explore the relationship between the parental attitudes towards CP, expected outcomes of CP, and parenting practices on one hand, with the reported dysfunctions of their children, on the other. Additionally, we aimed to explore the relationship between the use of CP and the reported academic, developmental, and psychological–emotional dysfunctions of their children. The present study involved a nationally representative sample of 1186 parents in Serbia, who had at least one child aged 0–18 years at the moment of interviewing. The parents filled out a series of questionnaires on their attitudes towards CP, expectations of CP outcomes, and their parental practices. Findings indicate that parents that report having a child with dysfunctions have positive attitudes towards CP and expect positive outcomes of CP. These parents also report using more CP as a disciplining method, as well as other harsh disciplining practices. We also identified parental positive expectations of CP, use of physical assault, psychological aggression, neglect as significant predictors of reported child dysfunctions severity. Having all the results in mind, we can assume that children with health-related and school-related issues might be at potential risk of further maltreatment. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany. - Some of the metrics are blocked by yourconsent settings
Publication Inpatient care in Serbia: trends in hospitalization and diagnostics over time(2018) ;Pejovic-Milovancevic, Milica (57218683898) ;Kesic, Ana (57495716600) ;Grujicic, Roberto (57204161597) ;Stojkovic, Ana (57192180591) ;Zivotic, Sanja (57207568793) ;Stupar, Dusan (57518015500) ;Borovnica, Vladimir (57207568547) ;Radosavljev-Kircanski, Jelena (54793436300) ;Manojlovic, Iva (57207575255)Stojiljkovic, Dragan J. (28867482100)[No abstract available] - Some of the metrics are blocked by yourconsent settings
Publication Inpatient care in Serbia: trends in hospitalization and diagnostics over time(2018) ;Pejovic-Milovancevic, Milica (57218683898) ;Kesic, Ana (57495716600) ;Grujicic, Roberto (57204161597) ;Stojkovic, Ana (57192180591) ;Zivotic, Sanja (57207568793) ;Stupar, Dusan (57518015500) ;Borovnica, Vladimir (57207568547) ;Radosavljev-Kircanski, Jelena (54793436300) ;Manojlovic, Iva (57207575255)Stojiljkovic, Dragan J. (28867482100)[No abstract available] - Some of the metrics are blocked by yourconsent settings
Publication Mental Health, Alcohol and Substance Use of Refugee Youth(2021) ;Vasic, Jelena (56465850200) ;Grujicic, Roberto (57204161597) ;Toskovic, Oliver (28867554600)Pejovic Milovancevic, Milica (57218683898)This study aims to explore the prevalence of alcohol and substance use among young refugees along with the indicators of experienced psychological difficulties. It is based on a sample of 184 children and adolescents aged 11–18 years old, residing at two refugee centers in the Republic of Serbia. Out of 184 participants, the majority was male (N = 155; 84.29%). More than a half of participants (53.3%) displayed significant symptoms of PTSD. 50% consume energy drinks, 28% use tobacco; 13% use alcohol; 4.6% use marijuana; 1.7% use LSD, amphetamines, glue, tranquilizers and cocaine. Female respondents were more frequently expressing emotional difficulties (p < 0.05) while male participants were more frequent users of alcohol or substances (p < 0.01). Younger children were more frequently expressing symptoms of hyperactivity and prosocial behavior, while they were less frequently using substances. There is also a significant negative correlation between the years of education and individual proneness to substance use. Furthermore, those who resided in a greater number of refugee camps were found to experience greater levels of emotional and behavioral difficulties and face a greater risk of physical abuse. The burden of migration increases proneness to substance use, as a consequence of scarce coping resources and the stress of adjusting. Migrants are vulnerable to substance use, since some of them have commonly witnessed and/or personally experienced pre-and post-migration stress and trauma, including loss of homes and livelihoods, violence, torture and family separation. Preventive programs need to focus on the problem of alcohol and substance use among this vulnerable population. Copyright © 2021 Vasic, Grujicic, Toskovic and Pejovic Milovancevic. - Some of the metrics are blocked by yourconsent settings
Publication Perceptions on support, challenges and needs among parents of children with autism: The Serbian experience(2018) ;Pejovic-Milovancevic, Milica (57218683898) ;Stankovic, Miodrag (57217098682) ;Mitkovic-Voncina, Marija (56493176300) ;Rudic, Nenad (6505885024) ;Grujicic, Roberto (57204161597) ;Herrera, Alexia S. (57204160675) ;Stojanovic, Aleksandra (57198806560) ;Nedovic, Bojan (57221865110) ;Shih, Andy (16022758100) ;Mandic-Maravic, Vanja (56663255900)Daniels, Amy (26428143700)Background: Autism spectrum disorders (ASD) significantly impact lives of affected individuals and their families. They confront daunting challenges and multiple demands in their daily life, when compared to parents of children with other disabilities or parents of typically developing children. Subjects and methods: Participants completed The Caregiver Needs Survey, the survey intended for parents or primary caregivers of children with a diagnosis of ASD. During the study, 231 parents were interviewed; 167 mothers and 64 fathers. Parents were recruited from the patient database comprised of families from the two largest cities in Serbia. All of them were contacted before the study, either via phone or at the child's regular check-in visit. Results: Over 90 percent of the parents reported that additional support at schools, home, and improved relationships with service providers are necessary and important. The most important challenges related to care were child's communication difficulties, social interaction difficulties, and problems with daily living skills. The significant predictors of lower overall satisfaction were parent's higher education, having a first concern related to problems of the child's interaction with others or playing alone, and parent frustration with accessing services in the past 12 months. Greater overall satisfaction, on the other hand, was related to having an in-school tutor training or assistance in managing child's needs or implementing treatments, and having primary care doctor or pediatrician as a source of information on autism. Conclusions: Future efforts to develop ASD-related policies and services should also take the following into consideration: the low level of awareness among caregivers and health care providers about the early signs of autism; disparities in access to services; educational problems and significant levels of dissatisfaction with the overall care and stigma. © Medicinska naklada - Zagreb, Croatia. - Some of the metrics are blocked by yourconsent settings
Publication Positive Effects of the Caregiver Skill Training Program on Children With Developmental Disabilities: Experiences From Serbia(2022) ;Glumbic, Nenad (36543879500) ;Grujicic, Roberto (57204161597) ;Stupar, Sanja (57194608602) ;Petrovic, Suncica (57197867029)Pejovic-Milovancevic, Milica (57218683898)Background: Intervention programs for children with developmental disabilities increasingly target caregiver training to implement effective strategies for child development. Research conducted in different countries shows that the Caregiver Skills Training Program (CST) developed by the World Health Organization and Autism Speaks could also be a recommended intervention. Methods: The pre-pilot phase included seven, and the pilot phase included 29 families of children with developmental disabilities trained to implement the intervention program. The caregivers were asked to complete the Autism Treatment Evaluation Checklist at the beginning and at the end of the program. Results: In the pre-pilot phase, the Wilcoxon signed-rank test determined a statistically significant improvement in Speech, Language and Communication (z = −2.99, p < 0.05) and Health/Physical/Behavior (z = −2.375, p < 0.05) after caregiver participation in the training program. In the pilot phase, the paired t-test also determined a statistically significant improvement in Speech, Language and Communication between the first (M = 24.52, SD = 5.57) and the second testing (M = 25.66, SD = 6.11), t(28) = −2.29, p < 0.05, as well as a significant improvement between the first (M = 36.62; SD = 7.15) and the second testing (M = 35.38; SD = 5.91), t(28) = 2.11, p < 0.05 in Health/Physical/Behavior. Eta squared values (0.16 and 0.14) indicate that the intervention effect was significant. No differences were determined in Sociability and Sensory/Cognitive Awareness between the first and the second testing. Conclusion: The initial results of the Caregiver Skills Training Program are encouraging. For this program to be recommended as an evidence-based intervention, further research should be conducted on larger samples, controlling possible intervening variables. Copyright © 2022 Glumbic, Grujicic, Stupar, Petrovic and Pejovic-Milovancevic.
