45 results on '"Serdarevic F"'
Search Results
2. IDF23-0213 Effects of adding thiazolidinediones to metformin in Type 2 diabetes management: A systematic review and meta-analysis
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Alnuaimi, S., Reljic, T., Abdulla, F., Memon, H., Al-Ali, S., Smith, T., Serdarevic, F., Asimi, Z.V., Kumar, A., and Semiz, S.
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- 2024
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3. SHORT REPORT: Multi-pathogen waterborne disease outbreak associated with a dinner cruise on Lake Michigan
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SERDAREVIC, F., JONES, R. C., WEAVER, K. N., BLACK, S. R., RITGER, K. A., GUICHARD, F., DOMBROSKI, P., EMANUEL, B. P., MILLER, L., and GERBER, S. I.
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- 2012
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4. SARS-CoV-2 virus outbreak and the emergency public health measures in Bosnia and Herzegovina: January – july 2020
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Hukic, M., Ponjavic, M. (Mirza), Tahirovic, E. (Emin), Karabegovic, A. (Almir), Ferhatbegovic, E. (Elvir), Travar, M. (Maja), Serdarevic, F. (Fadila), Hukic, M., Ponjavic, M. (Mirza), Tahirovic, E. (Emin), Karabegovic, A. (Almir), Ferhatbegovic, E. (Elvir), Travar, M. (Maja), and Serdarevic, F. (Fadila)
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Between March 5th and July 25th, 2020, the total number of SARS-CoV-2 confirmed cases in Bosnia and Herzegovina (BH) was 10,090, corresponding to a cumulative incidence rate of 285.7/100,000 population. Demographic and clinical information on all the cases along with exposure and contact information were collected using a standardized case report form. In suspected SARS-CoV-2 cases, respiratory specimens were collected and tested by real-time reverse-transcriptase polymerase chain reaction assay. The dynamic of the outbreak was summarized using epidemiologi
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- 2021
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5. Multi-pathogen waterborne disease outbreak associated with a dinner cruise on Lake Michigan
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SERDAREVIC, F., JONES, R. C., WEAVER, K. N., BLACK, S. R., RITGER, K. A., GUICHARD, F., DOMBROSKI, P., EMANUEL, B. P., MILLER, L., and GERBER, S. I.
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- 2012
6. Polygenic Risk Scores for Developmental Disorders, Neuromotor Functioning During Infancy, and Autistic Traits in Childhood
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Serdarevic, F. (Fadila), Tiemeier, H.W. (Henning), Jansen, P.R. (Philip), Alemany, S. (Silvia), Xerxa, Y. (Yllza), Neumann, A. (Alexander), Robinson, E. (Elise), Hillegers, M.H.J. (Manon), Verhulst, F.C. (Frank), Ghassabian, A. (Akhgar), Serdarevic, F. (Fadila), Tiemeier, H.W. (Henning), Jansen, P.R. (Philip), Alemany, S. (Silvia), Xerxa, Y. (Yllza), Neumann, A. (Alexander), Robinson, E. (Elise), Hillegers, M.H.J. (Manon), Verhulst, F.C. (Frank), and Ghassabian, A. (Akhgar)
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Background: Impaired neuromotor development is often one of the earliest observations in children with autism spectrum disorder (ASD). We investigated whether a genetic predisposition to developmental disorders was associated with nonoptimal neuromotor development during infancy and examined the genetic correlation between nonoptimal neuromotor development and autistic traits in the general population. Methods: In a population-based cohort in The Netherlands (2002–2006), we calculated polygenic risk scores (PRSs) for ASD and attention-deficit/hyperactivity disorder (ADHD) using genome-wide association study summary statistics. In 1921 children with genetic data, parents rated autistic traits at 6 years of age. Among them, 1174 children (61.1%) underwent neuromotor examinations (tone, responses, senses, and other observations) during infancy (9–20 weeks of age). We used linear regressions to examine associations of PRSs with neuromotor scores and autistic traits. We performed a bivariate genome-based restricted maximum likelihood analysis to explore whether genetic susceptibility underlies the association between neuromotor development and autistic traits. Results: Higher PRSs for ASD were associated with less optimal overall infant neuromotor development, in particular low muscle tone. Higher PRSs for ADHD were associated with less optimal senses. PRSs for ASD and those for ADHD both were associated with autistic traits. The single nucleotide polymorphism–based heritability of overall motor development was 20% (SE = .21) and of autistic traits was 68% (SE = .26). The genetic correlation between overall motor development and autistic traits was .35 (SE = .21, p < .001). Conclusions: We found that genetic liabilities for ASD and ADHD covary with neuromotor development during infancy. Shared genetic liability might partly explain the association between nonoptimal neuromotor development during infancy and autistic traits in childhood.
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- 2020
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7. Prevention and Management of Type 2 Diabetes and Metabolic Syndrome in the Time of COVID-19: Should We Add a Cup of Coffee?
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Semiz, S., Serdarevic, F. (Fadila), Semiz, S., and Serdarevic, F. (Fadila)
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Recent evidence shows that COVID-19 patients with existing metabolic disorders, such as diabetes and metabolic syndrome, are exposed to a high risk of morbidity and mortality. At the same time, in order to manage the pandemic, the health authorities around the world are advising people to stay at home. This results in decreased physical activity and an increased consumption of an unhealthy diet, which often leads to an increase in body weight, risk for diabetes, insulin resistance, and metabolic syndrome, and thus, paradoxically, to a high risk of morbidity and mortality due to COVID-19 complications. Here we summarize the evidence demonstrating that the promotion of a healthy life style, including physical activity and a dietary intake of natural polyphenols present in coffee and tea, has the potential to improve the prevention and management of insulin resistance and diabetes in the time of COVID-19 pandemic. Particularly, it would be pertinent to evaluate further the potential positive effects of coffee beverages, rich in natural polyphenols, as an adjuvant therapy for COVID-19, which appear not to be studied sufficiently.
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- 2020
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8. Higher circulating cortisol in the follicular vs. Luteal phase of the menstrual cycle: A meta-analysis
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Hamidovic, A. (Ajna), Karapetyan, K. (Kristina), Serdarevic, F. (Fadila), Choi, S.H. (So Hee), Eisenlohr-Moul, T. (Tory), Pinna, G. (Graziano), Hamidovic, A. (Ajna), Karapetyan, K. (Kristina), Serdarevic, F. (Fadila), Choi, S.H. (So Hee), Eisenlohr-Moul, T. (Tory), and Pinna, G. (Graziano)
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Although results of animal research show that interactions between stress and sex hormones are implicated in the development of affective disorders in women, translation of these findings to patients has been scarce. As a basic step toward advancing this field of research, we analyzed findings of studies which reported circulating cortisol levels in healthy women in the follicular vs. luteal phase of the menstrual cycle. We deemed this analysis critical not only to advance our understanding of basic physiology, but also as an important contrast to the findings of future studies evaluating stress and sex hormones in women with affective disorders. We hypothesized that cortisol levels would be lower in the follicular phase based on the proposition that changes in levels of potent GABAergic neurosteroids, including allopregnanolone, during the menstrual cycle dynamically change in the opposite direction relative to cortisol levels. Implementing strict inclusion criteria, we compiled results of high-quality studies involving 778 study participants to derive a standardized mean difference between circulating cortisol levels in the follicular vs. luteal phase of the menstrual cycle. In line with our hypothesis, our meta-analysis found that women in the follicular phase had higher cortisol levels than women in the luteal phase, with an overall Hedges’ g of 0.13 (p < 0.01) for the random effects model. No significant between-study difference was detected, with the level of heterogeneity in the small range. Furthermore, there was no evidence of publication bias. As cortisol regulation is a delicate process, we review some of the basic mechanisms by which progesterone, its potent metabolites, and estradiol regulate cortisol output and circulation to contribute to the net effect of higher cortisol in the follicular phase.
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- 2020
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9. Potential role of memantine in the prevention and treatment of COVID-19: its antagonism of nicotinic acetylcholine receptors (nAChR) and beyond
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Hasanagic, S. (Senad), Serdarevic, F. (Fadila), Hasanagic, S. (Senad), and Serdarevic, F. (Fadila)
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- 2020
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10. The sex-specific association between autistic traits and eating behavior in childhood: An exploratory study in the general population
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van 't Hof, M. (Maarten), Ester, W.A. (Wietske), Serdarevic, F. (Fadila), van Berckelaer-Onnes, I. (Ina), Hillegers, M.H.J. (Manon), Tiemeier, H.W. (Henning), Hoek, H.W. (Hans), Jansen, P.W. (Pauline), van 't Hof, M. (Maarten), Ester, W.A. (Wietske), Serdarevic, F. (Fadila), van Berckelaer-Onnes, I. (Ina), Hillegers, M.H.J. (Manon), Tiemeier, H.W. (Henning), Hoek, H.W. (Hans), and Jansen, P.W. (Pauline)
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Children with Autism Spectrum Disorder (ASD) often exhibit problematic eating behaviors, an observation mostly based on male dominated, clinical ASD study samples. It is, however, important to evaluate both children with an ASD diagnosis and children with subclinical autistic traits as both often experience difficulties. Moreover, considering the suggestion of a possible girl-specific ASD phenotype, there is a need to determine whether autistic traits are related with problematic eating behaviors in girls as well. This study explores the sex-specific association between autism (both autistic traits and diagnosed ASD) and eating behavior in middle childhood in Generation R, a prospective population-based cohort from fetal life onwards. We collected parental reports of autistic traits at six years (Social Responsiveness Scale) and of eating behavior at ten years (Children's Eating Behaviour Questionnaire). In this cohort of 3559 children, autistic traits at six years were associated with more Picky Eating, Emotional Eating and Food Responsiveness in later childhood (e.g. adjusted B for Picky Eating = 0.07; 95% CI: 0.03, 0.11). Stratified analyses showed that in girls, autistic traits were associated with more Emotional Overeating and Emotional Undereating (e.g. adjusted B for Emotional Undereating = 0.12; 95% CI: 0.04, 0.20), while no associations were found for boys. Results comparing children with and without an ASD diagnosis in the cohort largely confirm these associations (e.g. in girls, adjusted B for Emotional Undereating = 0.72; 95% CI: 0.01, 1.42). Our results point to a sex-specific association between autism and eating behavior in middle childhood. Also, our study is the first study to show that autistic traits are associated with emotionally based eating problems in girls and possibly represent part of a girl-specific ASD phenotype.
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- 2020
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11. The complex role of parental separation in the association between family conflict and child problem behavior
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Xerxa, Y. (Yllza), Rescorla, L.A. (Leslie), Serdarevic, F. (Fadila), IJzendoorn, M.H. (Rien) van, Jaddoe, V.W.V. (Vincent), Verhulst, F.C. (Frank), Luijk, P.C.M. (Maartje), Tiemeier, H.W. (Henning), Xerxa, Y. (Yllza), Rescorla, L.A. (Leslie), Serdarevic, F. (Fadila), IJzendoorn, M.H. (Rien) van, Jaddoe, V.W.V. (Vincent), Verhulst, F.C. (Frank), Luijk, P.C.M. (Maartje), and Tiemeier, H.W. (Henning)
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Parental separation is a major adverse childhood experience. Parental separation is generally preceded by conflict, which is itself a risk factor for child problem behavior. Whether parental separation independent of conflict has negative effects on child problem behavior is unclear. This study was embedded in Generation R, a population-based cohort followed from fetal life until age 9 years. Information on family conflict was obtained from 5,808 mothers and fathers. The 4-way decomposition method was used to apportion the effects of prenatal family conflict and parental separation on child problem behavior into 4 nonoverlapping components. Structural equation modeling was used to test bidirectional effects of child problem behavior and family conflict over time. Family conflict from pregnancy onward and parental separation each strongly predicted child problem behavior up to preadolescence according to maternal and paternal ratings. Using the 4-way decomposition method, we found evidence for a strong direct effect of prenatal family conflict on child problem behavior, for reference interaction, and for mediated interaction. The evidence for interaction implies that prenatal family conflict increased the children’s vulnerability to the harmful effect of parental separation. There was no evidence of a pure indirect effect of parental separation on child problem behavior. Overall, results indicated that if parental separation occurs in families with low levels of conflict, parental separation does not predict more child problem behavior. Moreover, the bidirectional pattern suggested that child problem behavior influences the persistence of family conflict
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- 2019
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12. Preschool family irregularity and the development of sleep problems in childhood
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Koopman-Verhoeff, M.E. (Elize), Serdarevic, F. (Fadila), Kocevska, D. (Desana), Bodrij, F.F. (Fene), Mileva-Seitz, V. (Viara), Reiss, I.K.M. (Irwin), Hillegers, M.H.J. (Manon), Tiemeier, H.W. (Henning), Cecil, C.A.M. (Charlotte), Verhulst, F.C. (Frank), Luijk, M, Koopman-Verhoeff, M.E. (Elize), Serdarevic, F. (Fadila), Kocevska, D. (Desana), Bodrij, F.F. (Fene), Mileva-Seitz, V. (Viara), Reiss, I.K.M. (Irwin), Hillegers, M.H.J. (Manon), Tiemeier, H.W. (Henning), Cecil, C.A.M. (Charlotte), Verhulst, F.C. (Frank), and Luijk, M
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Background: Previous studies have shown that poor family environments are related to more sleep problems; however, little is known about how family irregularity in early life affects the development of sleep problems over
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- 2019
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13. Infant Neuromotor Development and Neuropsychiatric Problems Modern Epidemiological approaches
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Serdarevic, F. (Fadila) and Serdarevic, F. (Fadila)
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__Background:__ This thesis focuses on the role of infant neuromotor development in relation to neuropsychiatric problems. I performed genetic studies to further our understanding of the association between neuromotor development in infancy and behavioral problems in childhood. Methods: Studies described in this thesis were performed in Generation R, a large prospective population-based cohort in Rotterdam, the Netherlands. In a large ample of children at age 9-20 weeks, 15 research assistants assessed neuromotor development (tone, responses, senses and other observations) using Touwen instrument. Parents reported on their behavior during childhood and cognitive abilities were observed at age 6 years. __Objectives:__ The aims of this thesis were 1) to study the associations between neuromotor development during infancy and childhood behavior and cognitive functioning, 2) to examine the extend to which genetic susceptibility for psychiatric disorders influences neuromotor development 3) to understand the role of infant neuromotor development in the association of genetic susceptibility for psychiatric disorders with behavioral outcomes during childhood. __Results:__ I showed that infant neuromotor development is associated with shifting and cold, but not hot executive functioning, as well as with autistic symptoms. I further found that infant neuromotor development (low muscle tone and senses) predicts internalizing, but not externalizing symptoms during childhood. Problems in shifting partly mediated association between low muscle tone and later internalizing symptoms. Furthermore, a higher genetic risk for schizophrenia and a lower genetic risk for bipolar disorder was associated with non-optimal overall neuromotor development during infancy. I also found that the genetic risk for autism spectrum disorder (ASD) predicts non-optimal neuromotor development and in particular low muscle tone, while the genetic risk for attention-deficit/hyperactivity disorder (ADHD) pr
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- 2019
14. Infant muscle tone and childhood autistic traits: A longitudinal study in the general population
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Serdarevic, F. (Fadila), Ghassabian, A. (Akhgar), Batenburg-Eddes, T. (Tamara) van, White, T.J.H. (Tonya), Blanken, L.M.E. (Laura), Jaddoe, V.W.V. (Vincent), Verhulst, F.C. (Frank), Tiemeier, H.W. (Henning), Serdarevic, F. (Fadila), Ghassabian, A. (Akhgar), Batenburg-Eddes, T. (Tamara) van, White, T.J.H. (Tonya), Blanken, L.M.E. (Laura), Jaddoe, V.W.V. (Vincent), Verhulst, F.C. (Frank), and Tiemeier, H.W. (Henning)
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In a longitudinal population-based study of 2,905 children, we investigated if infants' neuromotor development was associated with autistic traits in childhood. Overall motor development and muscle tone were examined by trained research assistants with an adapted version of Touwen's Neurodevelopmental Examination between ages 2 and 5 months. Tone was assessed in several positions and items were scored as normal, low, or high tone. Parents rated their children's autistic traits with the Social Responsiveness Scale (SRS) and the Pervasive Developmental Problems (PDP) subscale of the Child Behavior Checklist at 6 years. We defined clinical PDP if scores were >98th percentile of the norm population. Diagnosis of autism spectrum disorder (ASD) was clinically confirmed in 30 children. We observed a modest association between overall neuromotor development in infants and autistic traits. Low muscle tone in infancy predicted autistic traits measured by SRS (adjusted beta=0.05, 95% CI for B: 0.00-0.02, P=0.01), and PDP (adjusted beta=0.08, 95% CI for B: 0.04-0.10, P<0.001). Similar results emerged for the association of low muscle tone and clinical PDP (adjusted OR=1.36, 95% CI: 1.08-1.72, P=0.01) at age 6 years. Results remained unchanged if adjusted for child intelligence. There was no association between high muscle tone and SRS or PDP. Exclusion of children with ASD diagnosis did not change the association. This large study showed a prospective association of infant muscle tone with autistic traits in childhood. Our findings suggest that early detection of low muscle tone might be a gateway to improve early diagnosis of ASD.
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- 2017
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15. 2009 Pandemic influenza A (H1N1) virus infections--Chicago, Illinois, April-July 2009
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Ritger, K.A., Jones, R.C., Weaver, K.N., Ramirez, E., Smith, S., Morita, J.Y., Lohff, C.J., Black, S.B., Jones, J.D., Wong, W., Samala, U., Gerber, S.I., Dizikes, G., Nawrocki, J., Price, J., Hicks, L.A., Staples, J.E., Fischer, M., Swerdlow, D., Lyss, S., Serdarevic, F., Janusz, K., and Cortes, J.
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Chicago, Illinois -- Health aspects ,Development and progression ,Demographic aspects ,Health aspects ,Swine influenza -- Development and progression -- Demographic aspects ,Sentinel surveillance -- Demographic aspects ,Sentinel health events -- Demographic aspects - Abstract
On April 21, 2009, CDC reported the first cases of 2009 pandemic influenza A (H1N1) virus * infection in the United States (1). On April 24, in response to those [...]
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- 2009
16. Multi-pathogen waterborne disease outbreak associated with a dinner cruise on Lake Michigan
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SERDAREVIC, F., primary, JONES, R. C., additional, WEAVER, K. N., additional, BLACK, S. R., additional, RITGER, K. A., additional, GUICHARD, F., additional, DOMBROSKI, P., additional, EMANUEL, B. P., additional, MILLER, L., additional, and GERBER, S. I., additional
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- 2011
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17. P136 Peritumoral expression of p53 in oral cancer and its correlation with relapse (pilot study)
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Foco, F., primary, Vranic, S., additional, Serdarevic, F., additional, Cickusic, E., additional, Gurjeva, O., additional, and Bilalovic, N., additional
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- 2007
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18. A relationship between ethics of clinical trials and therapeutic advances in cancer
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Djulbegovic, B., primary, Kumar, A., additional, Soares, H. P., additional, Serdarevic, F., additional, Wells, R. J., additional, Fiorica, J., additional, Swann, S., additional, Buckner, J. C., additional, Sargent, D., additional, and Hozo, I., additional
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- 2005
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19. How many new treatments are “breakthroughs”? Evaluation of innovations in cancer
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Kumar, A., primary, Soares, H. P., additional, Serdarevic, F., additional, Hozo, I., additional, Buckner, J. C., additional, Wells, R. J., additional, Fiorica, J., additional, Swan, S., additional, Sargent, D., additional, and Djulbegovic, B., additional
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- 2005
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20. Equipoise principle and NCI-sponsored clinical trials: Are investigators truly uncertain about their comparisons?
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Soares, H. P., primary, Kumar, A., additional, Serdarevic, F., additional, Fiorica, J., additional, Wells, R. J., additional, Swann, S., additional, Buckner, J., additional, Sargent, D., additional, Hozo, I., additional, and Djulbegovic, B., additional
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- 2005
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21. DNA methylation at birth and fine motor ability in childhood: an epigenome-wide association study with replication
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Fadila Serdarevic, Mannan Luo, Irma Karabegović, Anne-Claire Binter, Silvia Alemany, Ryan Mutzel, Monica Guxens, Mariona Bustamante, Aida Hajdarpasic, Tonya White, Janine F Felix, Charlotte A.M. Cecil, Henning Tiemeier, Institut Català de la Salut, [Serdarevic F] Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands. Department of Social and Behavioral Science, Harvard T.H. Chan School of Public Health, Boston, MA, USA. Sarajevo Medical School, Sarajevo School of Science and Technology, Sarajevo, Bosnia and Herzegovina. [Luo M] Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands. The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands. Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, Rotterdam, the Netherlands. [Karabegović I] Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands. [Binter AC] ISGlobal, Barcelona, Spain. Universitat Pompeu Fabra, Barcelona, Spain. Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain. [Alemany S] Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands. Unitat de Genètica Psiquiàtrica, Grup de Recerca de Psiquiatria, Salut Mental i Addiccions, Vall d’Hebron Institut de Recerca (VHIR), Barcelona, Spain. Universitat Autònoma de Barcelona, Bellaterra, Spain. Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain. [Mutzel R] Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands, Vall d'Hebron Barcelona Hospital Campus, Child and Adolescent Psychiatry / Psychology, Erasmus MC other, Epidemiology, Radiology & Nuclear Medicine, and Pediatrics
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Cancer Research ,Fine motor development ,DNA methylation ,Infants autistes ,trastornos mentales::trastornos del desarrollo neurológico::trastornos generalizados del desarrollo del niño::trastorno del espectro del autismo [PSIQUIATRÍA Y PSICOLOGÍA] ,Investigative Techniques::Epidemiologic Methods::Epidemiologic Research Design::Genome-Wide Association Study [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT] ,ADN - Metilació ,Cord blood ,Mental Disorders::Neurodevelopmental Disorders::Child Development Disorders, Pervasive::Autism Spectrum Disorder [PSYCHIATRY AND PSYCHOLOGY] ,Epigenètica ,Chemical Phenomena::Biochemical Phenomena::Alkylation::Methylation::DNA Methylation [PHENOMENA AND PROCESSES] ,fenómenos químicos::fenómenos bioquímicos::alquilación::metilación::metilación del ADN [FENÓMENOS Y PROCESOS] ,técnicas de investigación::métodos epidemiológicos::diseño de la investigación epidemiológica::estudio de asociación genómica completa [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS] ,Cognitive function ,Molecular Biology ,EWAS - Abstract
DNA methylation; Cognitive function; Cord blood Metilació de l'ADN; Funció cognitiva; Sang de cordó Metilación del ADN; Función cognitiva; Sangre de cordón Lower fine motor performance in childhood has been associated with poorer cognitive development and neurodevelopmental conditions such as autism spectrum disorder, yet, biological underpinnings remain unclear. DNA methylation (DNAm), an essential process for healthy neurodevelopment, is a key molecular system of interest. In this study, we conducted the first epigenome-wide association study of neonatal DNAm with childhood fine motor ability and further examined the replicability of epigenetic markers in an independent cohort. The discovery study was embedded in Generation R, a large population-based prospective cohort, including a subsample of 924 ~ 1026 European-ancestry singletons with available data on DNAm in cord blood and fine motor ability at a mean (SD) age of 9.8 (0.4) years. Fine motor ability was measured using a finger-tapping test (3 subtests including left-, right-hand and bimanual), one of the most frequently used neuropsychological instruments of fine motor function. The replication study comprised 326 children with a mean (SD) age of 6.8 (0.4) years from an independent cohort, the INfancia Medio Ambiente (INMA) study. Four CpG sites at birth were prospectively associated with childhood fine motor ability after genome-wide correction. Of these, one CpG (cg07783800 in GNG4) was replicated in INMA, showing that lower levels of methylation at this site were associated with lower fine motor performance in both cohorts. GNG4 is highly expressed in the brain and has been implicated in cognitive decline. Our findings support a prospective, reproducible association between DNAm at birth and fine motor ability in childhood, pointing to GNG4 methylation at birth as a potential biomarker of fine motor ability. The EWAS data was funded by a grant from the Netherlands Genomics Initiative (NGI)/Netherlands Organisation for Scientific Research (NWO) Netherlands Consortium for Healthy Aging (NCHA; project nr. 050-060-810), funds from the Genetic Laboratory of the Department of Internal Medicine, Erasmus MC, and a grant from the National Institute of Child and Human Development (R01HD068437). HT was supported by a grant of the Dutch Ministry of Education, Culture, and Science and the Netherlands Organization for Scientific Research (NWO grant No. 024.001.003, Consortium on Individual Development). FS was supported by a Royal Netherlands Academy of Science and Art (KNAW) Van Leersum fellowship. ML is supported by the scholarship from the China Scholarship Council (201706990036). CC is supported by the European Research Council (ERC) under the European Union’s Horizon 2020 Research and Innovation Programme under grant agreements No 101039672 (TEMPO) and No 848158 (EarlyCause). This project received funding from the European Union’s Horizon 2020 research and innovation programme (733206, LifeCycle).The epigenetic studies in INMA were mainly funded by grants from Instituto de Salud Carlos III (Red INMA G03/176, CB06/02/0041, CP18/00018), Spanish Ministry of Health (FIS-PI04/1436, FIS-PI08/1151 including FEDER funds, FIS-PI11/00610, FIS-FEDER-PI06/0867, FIS-FEDER-PI03-1615) Generalitat de Catalunya-CIRIT 1999SGR 00241, Fundació La marató de TV3 (090430), EU Commission (261357-MeDALL: Mechanisms of the Development of ALLergy), and European Research Council (268479-BREATHE: BRain dEvelopment and Air polluTion ultrafine particles in scHool childrEn).
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- 2023
22. PPAR agonists as add-on treatment with metformin in management of type 2 diabetes: a systematic review and meta-analysis.
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Alnuaimi S, Reljic T, Abdulla FS, Memon H, Al-Ali S, Smith T, Serdarevic F, Velija Asimi Z, Kumar A, and Semiz S
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- Humans, Blood Glucose metabolism, Randomized Controlled Trials as Topic, Glycated Hemoglobin metabolism, Diabetes Mellitus, Type 2 drug therapy, Metformin therapeutic use, Metformin administration & dosage, Hypoglycemic Agents therapeutic use, Drug Therapy, Combination, Peroxisome Proliferator-Activated Receptors agonists
- Abstract
The combination of metformin and the peroxisome proliferator-activated receptors (PPAR) agonists offers a promising avenue for managing type 2 diabetes (T2D) through their potential complementary mechanisms of action. The results from randomized controlled trials (RCT) assessing the efficacy of PPAR agonists plus metformin versus metformin alone in T2D are inconsistent, which prompted the conduct of the systematic review and meta-analysis. We searched MEDLINE and EMBASE from inception (1966) to March 2023 to identify all RCTs comparing any PPAR agonists plus metformin versus metformin alone in T2D. Categorical variables were summarized as relative risk along with 95% confidence interval (CI). Twenty RCTs enrolling a total of 6058 patients met the inclusion criteria. The certainty of evidence ranged from moderate to very low. Pooled results show that using PPAR agonist plus metformin, as compared to metformin alone, results in lower concentrations of fasting glucose [MD = - 22.07 mg/dl (95% CI - 27.17, - 16.97), HbA1c [MD = - 0.53% (95% CI - 0.67, - 0.38)], HOMA-IR [MD = - 1.26 (95% CI - 2.16, - 0.37)], and fasting insulin [MD = - 19.83 pmol/L (95% CI - 29.54, - 10.13)] without significant increase in any adverse events. Thus, synthesized evidence from RCTs demonstrates the beneficial effects of PPAR agonist add-on treatment versus metformin alone in T2D patients. In particular, novel dual PPARα/γ agonist (tesaglitazar) demonstrate efficacy in improving glycaemic and lipid concentrations, so further RCTs should be performed to elucidate the long-term outcomes and safety profile of these novel combined and personalized therapeutic strategies in the management of T2D.PROSPERO registration no. CRD42023412603., (© 2024. The Author(s).)
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- 2024
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23. What maternal educational mobility tells us about the mother's parenting routines, offspring school achievement and intelligence.
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Tamayo Martinez N, Serdarevic F, Tahirovic E, Daenekindt S, Keizer R, Jansen PW, and Tiemeier H
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- Child, Male, Female, Humans, Educational Status, Intelligence, Schools, Parenting, Mothers
- Abstract
Background: Educational mobility at the macro-level is a common measure of social inequality. Nonetheless, the correlates of mobility of education at the individual level are less well studied. We evaluated whether educational mobility of the second generation (compared to the first generation level) predicts differences in parenting practices of the second generation and school achievement and intelligence in the third generation., Methods: Data from a population-based cohort of children in the Netherlands (N = 3547; 49.4% boys) were analyzed. Maternal, grandparental education and family routines, a parenting practice, were reported by the mother. Child school achievement at the end of primary school (∼12 years, with the national Dutch academic test score) and child intelligence (∼6 and 13 years) were measured in a standardized manner. Also, a child genome-wide polygenic score of academic attainment was calculated. To estimate the effect of educational mobility, inverse probability-weighted linear models and Diagonal Reference Models (DRM) were used., Results: Upward maternal educational mobility was associated with better offspring school achievement, higher intelligence, and more family routines if compared to offspring of mothers with no upward mobility. However, mothers did not implement the same level of family routines as similarly educated mothers and grandfathers who already had achieved this educational level. Likewise, children of mothers with upward educational mobility had lower school achievement and intelligence than children of similarly educated mothers with no mobility. Child's genetic potential for education followed a similar association pattern with higher potential in children of upward mobile mothers., Conclusion: Policymakers might overlook social inequalities when focused on parental socioeconomic status. Grandparental socioeconomic status, which independently predicts child school achievement, intelligence, and parental family routines, should also be assessed. The child's genetic endowment reflects the propensity for education across generations that partly underlies mobility and some of its effect on the offspring., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2024
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24. Exploratory genetic analysis in children with autism spectrum disorder and other developmental disorders using whole exome sequencing.
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Hamzic E, Spahic L, Pistoljevic N, Dzanko E, Pasic S, Kadric L, Serdarevic F, and Hajdarpasic A
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- Humans, Male, Female, Child, Preschool, Child, Developmental Disabilities genetics, Developmental Disabilities diagnosis, Genetic Predisposition to Disease, Autism Spectrum Disorder genetics, Autism Spectrum Disorder diagnosis, Exome Sequencing methods
- Abstract
Developmental disorders (DDs), such as autism spectrum disorder (ASD), incorporate various conditions; once identified, further diagnostics are necessary to specify their type and severity. The aim of this exploratory study was to identify genetic variants that can help differentiate ASD early from other DDs. We selected 36 children (mean age 60.1 months) with DDs using Developmental Behavioral Scales (DBS) through "EDUS-Education for All", an organization providing services for children with developmental disorders in Bosnia and Herzegovina. We further rated children's autistic traits with the preschool version of the Childhood Autism Rating Scale, second edition (CARS-II). We defined ASD if scores were >25.5 and other DDs if scores were <25.5. Diagnosis of ASD and DD were independently confirmed by child psychiatrists. Whole exome sequencing (WES) was performed by Veritas Genetics, USA, using Illumina NovaSeq 6000 (Illumina Inc., San Diego, CA, USA) next-generation sequencing (NGS) apparatus. We tested genetic association by applying SKAT-O, which optimally combines the standard Sequence Kernel Association Test (SKAT) and burden tests to identify rare variants associated with complex traits in samples of limited power. The analysis yielded seven genes (DSE, COL10A1, DLK2, CSMD1, FAM47E, PPIA, PYDC2) to potentially differentiate observed phenotypic characteristics between our cohort participants with ASD and other DDs. Our exploratory study in a small sample of participants with ASD and other DDs contributed to gene discovery in differentiating ASD from DDs. A replication study is needed in a larger sample to confirm our results.
- Published
- 2024
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25. Effects of Pre- and Postnatal Early-Life Stress on Internalizing, Adiposity, and Their Comorbidity.
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Defina S, Woofenden T, Baltramonaityte V, Pariante CM, Lekadir K, Jaddoe VWV, Serdarevic F, Tiemeier H, Walton E, Felix JF, and Cecil CAM
- Subjects
- Female, Pregnancy, Adolescent, Humans, Male, Obesity, Risk Factors, Comorbidity, Adiposity, Adverse Childhood Experiences
- Abstract
Objective: Depression and obesity are 2 highly prevalent and often comorbid conditions. Exposure to early-life stress (ELS) has been associated with both depression and obesity in adulthood, as well as their preclinical manifestations during development. However, it remains unclear whether (1) associations differ depending on the timing of stress exposure (prenatal vs postnatal), and whether (2) ELS is a shared risk factor underlying the comorbidity between the 2 conditions., Method: Leveraging data from 2 large population-based birth cohorts (ALSPAC: n = 8,428 [52% male participants]; Generation R: n = 4,268 [48% male participants]), we constructed comprehensive cumulative measures of prenatal (in utero) and postnatal (from birth to 10 years) ELS. At age 13.5 years, we assessed the following: internalizing symptoms (using maternal reports); fat mass percentage (using dual-energy X-ray absorptiometry); and their comorbidity, defined as the co-occurrence of high internalizing and high adiposity., Results: Both prenatal (total effect [95% CI] = 0.20 [0.16; 0.22]) and postnatal stress (β [95%CI] = 0.22 [0.17; 0.25]) were associated with higher internalizing symptoms, with evidence of a more prominent role of postnatal stress. A weaker association (driven primarily by prenatal stress) was observed between stress and adiposity (prenatal: 0.07 [0.05; 0.09]; postnatal: 0.04 [0.01; 0.07]). Both prenatal (odds ratio [95%CI] = 1.70 [1.47; 1.97]) and postnatal (1.87 [1.61; 2.17]) stress were associated with an increased risk of developing comorbidity., Conclusion: We found evidence of timing and shared causal effects of ELS on psycho-cardiometabolic health in adolescence; however, future research is warranted to clarify how these associations may unfold over time., Diversity & Inclusion Statement: We worked to ensure sex and gender balance in the recruitment of human participants. We worked to ensure race, ethnic, and/or other types of diversity in the recruitment of human participants. We worked to ensure that the study questionnaires were prepared in an inclusive way. One or more of the authors of this paper self-identifies as a member of one or more historically underrepresented racial and/or ethnic groups in science. One or more of the authors of this paper self-identifies as a member of one or more historically underrepresented sexual and/or gender groups in science. We actively worked to promote sex and gender balance in our author group., (Copyright © 2023 American Academy of Child and Adolescent Psychiatry. Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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26. DNA methylation at birth and fine motor ability in childhood: an epigenome-wide association study with replication.
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Serdarevic F, Luo M, Karabegović I, Binter AC, Alemany S, Mutzel R, Guxens M, Bustamante M, Hajdarpasic A, White T, Felix JF, Cecil CAM, and Tiemeier H
- Subjects
- Child, Infant, Newborn, Humans, Epigenesis, Genetic, Epigenome, Prospective Studies, Genome-Wide Association Study, CpG Islands, DNA Methylation, Autism Spectrum Disorder
- Abstract
Lower fine motor performance in childhood has been associated with poorer cognitive development and neurodevelopmental conditions such as autism spectrum disorder, yet, biological underpinnings remain unclear. DNA methylation (DNAm), an essential process for healthy neurodevelopment, is a key molecular system of interest. In this study, we conducted the first epigenome-wide association study of neonatal DNAm with childhood fine motor ability and further examined the replicability of epigenetic markers in an independent cohort. The discovery study was embedded in Generation R, a large population-based prospective cohort, including a subsample of 924 ~ 1026 European-ancestry singletons with available data on DNAm in cord blood and fine motor ability at a mean (SD) age of 9.8 (0.4) years. Fine motor ability was measured using a finger-tapping test (3 subtests including left-, right-hand and bimanual), one of the most frequently used neuropsychological instruments of fine motor function. The replication study comprised 326 children with a mean (SD) age of 6.8 (0.4) years from an independent cohort, the INfancia Medio Ambiente (INMA) study. Four CpG sites at birth were prospectively associated with childhood fine motor ability after genome-wide correction. Of these, one CpG (cg07783800 in GNG4) was replicated in INMA, showing that lower levels of methylation at this site were associated with lower fine motor performance in both cohorts. GNG4 is highly expressed in the brain and has been implicated in cognitive decline. Our findings support a prospective, reproducible association between DNAm at birth and fine motor ability in childhood, pointing to GNG4 methylation at birth as a potential biomarker of fine motor ability.
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- 2023
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27. Effects of combined treatment of probiotics and metformin in management of type 2 diabetes: A systematic review and meta-analysis.
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Memon H, Abdulla F, Reljic T, Alnuaimi S, Serdarevic F, Asimi ZV, Kumar A, and Semiz S
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- Adult, Humans, Hypoglycemic Agents therapeutic use, Fasting, Metformin therapeutic use, Diabetes Mellitus, Type 2 drug therapy, Diabetes Mellitus, Type 2 chemically induced, Probiotics therapeutic use
- Abstract
Background: Lifestyle changes and dietary intervention, including the use of probiotics, can modulate dysbiosis of gut microbiome and contribute to the management of type 2 diabetes mellitus (T2DM). This systematic review and meta-analysis aim to assess the efficacy of metformin plus probiotics versus metformin alone on outcomes in patients with T2DM., Methods: We searched MEDLINE and EMBASE from inception to February 2023 to identify all randomized controlled trials (RCTs), which compared the use of metformin plus probiotics versus metformin alone in adult patients with T2DM. Data were summarized as mean differences (MD) with 95 % confidence interval (CI) and pooled under the random effects model., Findings: Fourteen RCTs (17 comparisons, 1009 patients) were included in this systematic review. Pooled results show a significant decrease in fasting glucose (FG) (MD = -0.64, 95 % CI = -1.06, -0.22) and HbA1c (MD = -0.29, 95 % CI = -0.47, -0.10) levels in patients with T2DM treated with metformin plus probiotics versus metformin alone. The addition of probiotics to metformin resulted in lower odds of gastrointestinal adverse events (Odds ratio = 0.18, 95 % CI = 0.09, 0.3.8; I
2 = 0 %)., Conclusions: The addition of probiotics to metformin therapy is associated with improvement in T2DM outcomes. However, high-quality and adequately reported RCTs are needed in the future to confirm our findings., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)- Published
- 2023
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28. Excessive Crying, Behavior Problems, and Amygdala Volume: A Study From Infancy to Adolescence.
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Sammallahti S, Serdarevic F, and Tiemeier H
- Subjects
- Child, Female, Pregnancy, Humans, Infant, Adolescent, Prospective Studies, Crying, Mothers, Amygdala diagnostic imaging, Problem Behavior
- Abstract
Objective: Excessive crying in infancy has been associated with increased risk of later behavioral problems. To identify individuals at risk for behavioral problems and to understand the mechanisms underlying excessive crying and irritability in infancy, research into the neurobiology of excessive crying is needed. We examined whether excessive crying and irritability in infancy are associated with behavioral problems and amygdala volume among children and adolescents., Method: This study included 4,751 singleton children from the prospective population-based Generation R Study cohort, born in the Netherlands in 2002 to 2006. Excessive crying (>3 hours on at least 1 day/wk) and irritability (Mother and Baby Scales questionnaire) were parent-rated at 3 months. Amygdala volume was measured at 10 years using magnetic resonance imaging, and internalizing and externalizing were parent-rated at 1.5, 3, 6, 10, and 14 years and self-rated at 14 years. Covariates included child age, sex, national origin, gestational age, and maternal age, psychopathology score, parity, education, relationship status, and family income., Results: Children who cried excessively in infancy had higher parent-rated internalizing (effect estimate = 0.20 SD-units, 95% CI = 0.14, 0.27) and externalizing (0.17 SD-units, 95% CI = 0.10, 0.24) throughout childhood (linear mixed models), and smaller amygdala volume at 10 years (-0.19 SD-units, 95% CI = -0.32, -0.06) (linear regression model). The pattern of associations for both behavioral problems and amygdala volume was similar for irritability., Conclusion: Excessive crying and irritability in infancy may reflect an early vulnerability to behavioral problems and may be linked with neurobiological differences in the development of the amygdala., (Copyright © 2023 American Academy of Child and Adolescent Psychiatry. Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
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29. Double advantage of parental education for child educational achievement: the role of parenting and child intelligence.
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Tamayo Martinez N, Xerxa Y, Law J, Serdarevic F, Jansen PW, and Tiemeier H
- Subjects
- Adolescent, Child, Child, Preschool, Educational Status, Female, Humans, Intelligence, Male, Parents education, Academic Success, Parenting
- Abstract
Background: Parental education is one of the best predictors of child school achievement. Higher parental education is not only associated with higher child intelligence, but children from highly educated parents also perform better in school due to other family related factors. This study evaluates the relation between parental education, child non-verbal intelligence and parenting practices with child school achievement., Methods: Longitudinal data from a large population-based, multi-ethnic cohort of children in the Netherlands (63% Dutch origin) followed from birth to age 13 years (3547 children; 52.3% girls) were analyzed. School achievement was measured at the end of primary school (12 years of age) with a national Dutch academic test score. Parental education was assessed at age 3 years. The non-verbal intelligence of the child was measured at age 6 years and a full intelligence was measured at age 13 years. Maternal and paternal family routines, harsh parenting and corporal punishment were assessed in early and mid-childhood. Mediation analysis was performed with the G-formula and Structural Equation Models., Results: Child intelligence partially mediated [B indirect effect =0.54 95% CI (0.46, 0.62) P < 0.001] the association between parental education and child school achievement. Independent of intelligence, family routines [B indirect effect =0.04 95% CI (0.01, 0.07) P < 0.01], but not harsh parenting mediated this association., Conclusions: Higher parental education was associated with better school achievement through two independent mechanisms, through higher intelligence of the child and parenting practices., (© The Author(s) 2022. Published by Oxford University Press on behalf of the European Public Health Association.)
- Published
- 2022
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30. SARS-CoV-2 virus outbreak and the emergency public health measures in Bosnia and Herzegovina: January - July, 2020.
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Hukic M, Ponjavic M, Tahirovic E, Karabegovic A, Ferhatbegovic E, Travar M, and Serdarevic F
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- Adolescent, Adult, Aged, Aged, 80 and over, Basic Reproduction Number, Bosnia and Herzegovina epidemiology, Child, Child, Preschool, Disaster Planning, Female, Geography, Hospitalization, Humans, Infant, Male, Middle Aged, Quarantine, Real-Time Polymerase Chain Reaction, Reverse Transcriptase Polymerase Chain Reaction, Young Adult, COVID-19 epidemiology, Disease Outbreaks, Public Health methods
- Abstract
Between March 5th and July 25th, 2020, the total number of SARS-CoV-2 confirmed cases in Bosnia and Herzegovina (BH) was 10,090, corresponding to a cumulative incidence rate of 285.7/100,000 population. Demographic and clinical information on all the cases along with exposure and contact information were collected using a standardized case report form. In suspected SARS-CoV-2 cases, respiratory specimens were collected and tested by real-time reverse-transcriptase polymerase chain reaction assay. The dynamic of the outbreak was summarized using epidemiological curves, instantaneous reproduction number Rt, and interactive choropleth maps for geographical distribution and spread. The rate of hospitalization was 14.0%(790/5646) in the Federation of Bosnia and Herzegovina (FBH) and 6.2% (267/4299) in the Republic of Srpska (RS). The death rate was 2.2% (122/5646) in FBH and 3.6% in the RS (155/4299). After the authorities lifted mandatory quarantine restrictions, the instantaneous reproduction number increased from 1.13 on May 20th to 1.72 on May 31st. The outbreak concerns both entities, FBH and RS, and it is more pronounced in those aged 20-44 years. It is important to develop the communication and emergency plan for the SARS-CoV-2 outbreak in BH, including the mechanisms to allow the ongoing notification and updates at the national level.
- Published
- 2021
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31. Prevention and Management of Type 2 Diabetes and Metabolic Syndrome in the Time of COVID-19: Should We Add a Cup of Coffee?
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Semiz S and Serdarevic F
- Abstract
Recent evidence shows that COVID-19 patients with existing metabolic disorders, such as diabetes and metabolic syndrome, are exposed to a high risk of morbidity and mortality. At the same time, in order to manage the pandemic, the health authorities around the world are advising people to stay at home. This results in decreased physical activity and an increased consumption of an unhealthy diet, which often leads to an increase in body weight, risk for diabetes, insulin resistance, and metabolic syndrome, and thus, paradoxically, to a high risk of morbidity and mortality due to COVID-19 complications. Here we summarize the evidence demonstrating that the promotion of a healthy life style, including physical activity and a dietary intake of natural polyphenols present in coffee and tea, has the potential to improve the prevention and management of insulin resistance and diabetes in the time of COVID-19 pandemic. Particularly, it would be pertinent to evaluate further the potential positive effects of coffee beverages, rich in natural polyphenols, as an adjuvant therapy for COVID-19, which appear not to be studied sufficiently., (Copyright © 2020 Semiz and Serdarevic.)
- Published
- 2020
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32. Potential role of memantine in the prevention and treatment of COVID-19: its antagonism of nicotinic acetylcholine receptors and beyond.
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Hasanagic S and Serdarevic F
- Subjects
- Betacoronavirus, COVID-19, Humans, Nicotine, SARS-CoV-2, Coronavirus Infections, Memantine, Pandemics, Pneumonia, Viral, Receptors, Nicotinic
- Abstract
Competing Interests: Conflict of interest: S. Hasanagic has nothing to disclose. Conflict of interest: F. Serdarevic has nothing to disclose.
- Published
- 2020
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33. Higher Circulating Cortisol in the Follicular vs. Luteal Phase of the Menstrual Cycle: A Meta-Analysis.
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Hamidovic A, Karapetyan K, Serdarevic F, Choi SH, Eisenlohr-Moul T, and Pinna G
- Subjects
- Female, Humans, Follicular Phase, Hydrocortisone blood, Luteal Phase, Menstrual Cycle
- Abstract
Although results of animal research show that interactions between stress and sex hormones are implicated in the development of affective disorders in women, translation of these findings to patients has been scarce. As a basic step toward advancing this field of research, we analyzed findings of studies which reported circulating cortisol levels in healthy women in the follicular vs . luteal phase of the menstrual cycle. We deemed this analysis critical not only to advance our understanding of basic physiology, but also as an important contrast to the findings of future studies evaluating stress and sex hormones in women with affective disorders. We hypothesized that cortisol levels would be lower in the follicular phase based on the proposition that changes in levels of potent GABAergic neurosteroids, including allopregnanolone, during the menstrual cycle dynamically change in the opposite direction relative to cortisol levels. Implementing strict inclusion criteria, we compiled results of high-quality studies involving 778 study participants to derive a standardized mean difference between circulating cortisol levels in the follicular vs. luteal phase of the menstrual cycle. In line with our hypothesis, our meta-analysis found that women in the follicular phase had higher cortisol levels than women in the luteal phase, with an overall Hedges' g of 0.13 ( p < 0.01) for the random effects model. No significant between-study difference was detected, with the level of heterogeneity in the small range. Furthermore, there was no evidence of publication bias. As cortisol regulation is a delicate process, we review some of the basic mechanisms by which progesterone, its potent metabolites, and estradiol regulate cortisol output and circulation to contribute to the net effect of higher cortisol in the follicular phase., (Copyright © 2020 Hamidovic, Karapetyan, Serdarevic, Choi, Eisenlohr-Moul and Pinna.)
- Published
- 2020
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34. The sex-specific association between autistic traits and eating behavior in childhood: An exploratory study in the general population.
- Author
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van 't Hof M, Ester WA, Serdarevic F, van Berckelaer-Onnes I, Hillegers MHJ, Tiemeier H, Hoek HW, and Jansen PW
- Subjects
- Child, Female, Food Fussiness, Humans, Male, Prospective Studies, Surveys and Questionnaires, Autism Spectrum Disorder psychology, Feeding Behavior psychology, Sex Factors
- Abstract
Children with Autism Spectrum Disorder (ASD) often exhibit problematic eating behaviors, an observation mostly based on male dominated, clinical ASD study samples. It is, however, important to evaluate both children with an ASD diagnosis and children with subclinical autistic traits as both often experience difficulties. Moreover, considering the suggestion of a possible girl-specific ASD phenotype, there is a need to determine whether autistic traits are related with problematic eating behaviors in girls as well. This study explores the sex-specific association between autism (both autistic traits and diagnosed ASD) and eating behavior in middle childhood in Generation R, a prospective population-based cohort from fetal life onwards. We collected parental reports of autistic traits at six years (Social Responsiveness Scale) and of eating behavior at ten years (Children's Eating Behaviour Questionnaire). In this cohort of 3559 children, autistic traits at six years were associated with more Picky Eating, Emotional Eating and Food Responsiveness in later childhood (e.g. adjusted B for Picky Eating = 0.07; 95% CI: 0.03, 0.11). Stratified analyses showed that in girls, autistic traits were associated with more Emotional Overeating and Emotional Undereating (e.g. adjusted B for Emotional Undereating = 0.12; 95% CI: 0.04, 0.20), while no associations were found for boys. Results comparing children with and without an ASD diagnosis in the cohort largely confirm these associations (e.g. in girls, adjusted B for Emotional Undereating = 0.72; 95% CI: 0.01, 1.42). Our results point to a sex-specific association between autism and eating behavior in middle childhood. Also, our study is the first study to show that autistic traits are associated with emotionally based eating problems in girls and possibly represent part of a girl-specific ASD phenotype., (Copyright © 2019 Elsevier Ltd. All rights reserved.)
- Published
- 2020
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35. Polygenic Risk Scores for Developmental Disorders, Neuromotor Functioning During Infancy, and Autistic Traits in Childhood.
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Serdarevic F, Tiemeier H, Jansen PR, Alemany S, Xerxa Y, Neumann A, Robinson E, Hillegers MHJ, Verhulst FC, and Ghassabian A
- Subjects
- Child, Genome-Wide Association Study, Humans, Infant, Netherlands epidemiology, Risk Factors, Attention Deficit Disorder with Hyperactivity genetics, Autism Spectrum Disorder genetics, Autistic Disorder
- Abstract
Background: Impaired neuromotor development is often one of the earliest observations in children with autism spectrum disorder (ASD). We investigated whether a genetic predisposition to developmental disorders was associated with nonoptimal neuromotor development during infancy and examined the genetic correlation between nonoptimal neuromotor development and autistic traits in the general population., Methods: In a population-based cohort in The Netherlands (2002-2006), we calculated polygenic risk scores (PRSs) for ASD and attention-deficit/hyperactivity disorder (ADHD) using genome-wide association study summary statistics. In 1921 children with genetic data, parents rated autistic traits at 6 years of age. Among them, 1174 children (61.1%) underwent neuromotor examinations (tone, responses, senses, and other observations) during infancy (9-20 weeks of age). We used linear regressions to examine associations of PRSs with neuromotor scores and autistic traits. We performed a bivariate genome-based restricted maximum likelihood analysis to explore whether genetic susceptibility underlies the association between neuromotor development and autistic traits., Results: Higher PRSs for ASD were associated with less optimal overall infant neuromotor development, in particular low muscle tone. Higher PRSs for ADHD were associated with less optimal senses. PRSs for ASD and those for ADHD both were associated with autistic traits. The single nucleotide polymorphism-based heritability of overall motor development was 20% (SE = .21) and of autistic traits was 68% (SE = .26). The genetic correlation between overall motor development and autistic traits was .35 (SE = .21, p < .001)., Conclusions: We found that genetic liabilities for ASD and ADHD covary with neuromotor development during infancy. Shared genetic liability might partly explain the association between nonoptimal neuromotor development during infancy and autistic traits in childhood., (Copyright © 2019 Society of Biological Psychiatry. Published by Elsevier Inc. All rights reserved.)
- Published
- 2020
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36. The Complex Role of Parental Separation in the Association between Family Conflict and Child Problem Behavior.
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Xerxa Y, Rescorla LA, Serdarevic F, Van IJzendorn MH, Jaddoe VW, Verhulst FC, Luijk MPCM, and Tiemeier H
- Subjects
- Child, Child, Preschool, Cohort Studies, Female, Humans, Longitudinal Studies, Male, Divorce psychology, Family Conflict psychology, Parents psychology, Problem Behavior psychology
- Abstract
Parental separation is a major adverse childhood experience. Parental separation is generally preceded by conflict, which is itself a risk factor for child problem behavior. Whether parental separation independent of conflict has negative effects on child problem behavior is unclear. This study was embedded in Generation R, a population-based cohort followed from fetal life until age 9 years. Information on family conflict was obtained from 5,808 mothers and fathers. The 4-way decomposition method was used to apportion the effects of prenatal family conflict and parental separation on child problem behavior into 4 nonoverlapping components. Structural equation modeling was used to test bidirectional effects of child problem behavior and family conflict over time. Family conflict from pregnancy onward and parental separation each strongly predicted child problem behavior up to preadolescence according to maternal and paternal ratings. Using the 4-way decomposition method, we found evidence for a strong direct effect of prenatal family conflict on child problem behavior, for reference interaction, and for mediated interaction. The evidence for interaction implies that prenatal family conflict increased the children's vulnerability to the harmful effect of parental separation. There was no evidence of a pure indirect effect of parental separation on child problem behavior. Overall, results indicated that if parental separation occurs in families with low levels of conflict, parental separation does not predict more child problem behavior. Moreover, the bidirectional pattern suggested that child problem behavior influences the persistence of family conflict.
- Published
- 2020
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37. Preschool family irregularity and the development of sleep problems in childhood: a longitudinal study.
- Author
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Koopman-Verhoeff ME, Serdarevic F, Kocevska D, Bodrij FF, Mileva-Seitz VR, Reiss I, Hillegers MHJ, Tiemeier H, Cecil CAM, Verhulst FC, and Luijk MPCM
- Subjects
- Actigraphy, Child, Child, Preschool, Female, Humans, Longitudinal Studies, Male, Child Rearing, Family, Sleep Wake Disorders epidemiology
- Abstract
Background: Previous studies have shown that poor family environments are related to more sleep problems; however, little is known about how family irregularity in early life affects the development of sleep problems over childhood using objective sleep measures. The current study tests the hypothesis that early family irregularity contributes to the development of sleep problems., Methods: This population-based study comprises 5,443 children from the Generation R Study. Family irregularity was measured with seven maternal-reported questions on family routines when children were 2 and 4 years old. Mothers reported on sleep problems at child age 3, 6, and 10 years, whereas children completed questionnaires on sleep problems at age 10. Additionally, we used tri-axial wrist accelerometers for five nights in 851 children (mean age 11.7 years) to assess sleep objectively., Results: Family irregularity was associated with more mother- and child-reported sleep problems at ages 3, 6, and 10 years as well as with a shorter sleep duration and later objective sleep onset, but not with sleep efficiency or waking time. The association between family irregularity and multi-informant subjective sleep problems at age 10 years was mediated by mother-reported child psychopathology at age 6 years., Conclusions: Our findings show a long-term robust association of preschool family irregularity with more sleep problems during childhood as well as shorter sleep duration and later sleep onset as measured objectively with actigraphy. In part, these sleep problems were associated with family irregularity by way of child psychopathology. These findings suggest that interventions improving preschool family irregularity, which are targeted to reduce child psychopathology, may also impact the development of sleep problems beneficially., (© 2019 The Authors. Journal of Child Psychology and Psychiatry published by John Wiley & Sons Ltd on behalf of Association for Child and Adolescent Mental Health.)
- Published
- 2019
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38. Association of Genetic Risk for Schizophrenia and Bipolar Disorder With Infant Neuromotor Development.
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Serdarevic F, Jansen PR, Ghassabian A, White T, Jaddoe VWV, Posthuma D, and Tiemeier H
- Subjects
- Bipolar Disorder diagnosis, Cohort Studies, Correlation of Data, Developmental Disabilities diagnosis, Female, Gene Frequency genetics, Genome-Wide Association Study, Genotype, Humans, Infant, Infant, Newborn, Male, Motor Skills Disorders diagnosis, Multifactorial Inheritance genetics, Netherlands, Polymorphism, Single Nucleotide genetics, Pregnancy, Principal Component Analysis, Regression Analysis, Risk Assessment, Schizophrenia diagnosis, Bipolar Disorder genetics, Developmental Disabilities genetics, Genetic Predisposition to Disease genetics, Motor Skills Disorders genetics, Schizophrenia genetics
- Published
- 2018
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39. Infant Neuromotor Development and Childhood Problem Behavior.
- Author
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Serdarevic F, Ghassabian A, van Batenburg-Eddes T, Tahirovic E, White T, Jaddoe VWV, Verhulst FC, and Tiemeier H
- Subjects
- Child, Child Behavior Disorders complications, Child, Preschool, Female, Humans, Infant, Male, Netherlands, Surveys and Questionnaires, Child Behavior, Child Behavior Disorders diagnosis, Child Development
- Abstract
Background: Research of adults and school-aged children suggest a neurodevelopmental basis for psychiatric disorders. We examined whether infant neuromotor development predicted internalizing and externalizing problems in young children., Methods: In Generation R, a population-based cohort in the Netherlands (2002-2006), trained research assistants evaluated the neuromotor development of 4006 infants aged 2 to 5 months by using an adapted version of Touwen's Neurodevelopmental Examination (tone, responses, and senses and other observations). We defined nonoptimal neuromotor development as scores in the highest tertile. Mothers and fathers rated their children's behavior at ages 1.5, 3, 6, and 10 years with the Child Behavior Checklist ( n = 3474, response: 86.7%). The associations were tested with generalized linear mixed models., Results: Overall, neuromotor development predicted internalizing scores, but no association was observed with externalizing scores. Nonoptimal muscle tone was associated with higher internalizing scores (mothers' report: β = .07; 95% confidence interval [CI]: 0.01 to 0.13; fathers' report: β = .09, 95% CI: 0.00 to 0.16). In particular, nonoptimal low muscle tone was associated with higher internalizing scores (mothers' report: β = .11; 95% CI: 0.05 to 0.18; fathers' report: β = .13; 95% CI: 0.04 to 0.22). We also observed an association between senses and other observations with internalizing scores. There was no relationship between high muscle tone or reflexes and internalizing scores., Conclusions: Common emotional problems in childhood have a neurodevelopmental basis in infancy. Neuromotor assessment in infancy may help identify vulnerability to early internalizing symptoms and offer the opportunity for targeted interventions., Competing Interests: POTENTIAL CONFLICT OF INTEREST: Dr Verhulst is the contributing editor of the Achenbach System of Empirically Based Assessment, from which he receives remuneration; the other authors have indicated they have no potential conflicts of interest to disclose., (Copyright © 2017 by the American Academy of Pediatrics.)
- Published
- 2017
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40. Infant muscle tone and childhood autistic traits: A longitudinal study in the general population.
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Serdarevic F, Ghassabian A, van Batenburg-Eddes T, White T, Blanken LME, Jaddoe VWV, Verhulst FC, and Tiemeier H
- Subjects
- Autism Spectrum Disorder psychology, Checklist, Child, Child Development Disorders, Pervasive diagnosis, Child Development Disorders, Pervasive psychology, Child, Preschool, Early Diagnosis, Female, Humans, Infant, Longitudinal Studies, Male, Muscle Hypotonia psychology, Prospective Studies, Risk Factors, Statistics as Topic, Autism Spectrum Disorder diagnosis, Muscle Hypotonia diagnosis, Muscle Tonus
- Abstract
In a longitudinal population-based study of 2,905 children, we investigated if infants' neuromotor development was associated with autistic traits in childhood. Overall motor development and muscle tone were examined by trained research assistants with an adapted version of Touwen's Neurodevelopmental Examination between ages 2 and 5 months. Tone was assessed in several positions and items were scored as normal, low, or high tone. Parents rated their children's autistic traits with the Social Responsiveness Scale (SRS) and the Pervasive Developmental Problems (PDP) subscale of the Child Behavior Checklist at 6 years. We defined clinical PDP if scores were >98th percentile of the norm population. Diagnosis of autism spectrum disorder (ASD) was clinically confirmed in 30 children. We observed a modest association between overall neuromotor development in infants and autistic traits. Low muscle tone in infancy predicted autistic traits measured by SRS (adjusted beta = 0.05, 95% CI for B: 0.00-0.02, P = 0.01), and PDP (adjusted beta = 0.08, 95% CI for B: 0.04-0.10, P < 0.001). Similar results emerged for the association of low muscle tone and clinical PDP (adjusted OR = 1.36, 95% CI: 1.08-1.72, P = 0.01) at age 6 years. Results remained unchanged if adjusted for child intelligence. There was no association between high muscle tone and SRS or PDP. Exclusion of children with ASD diagnosis did not change the association. This large study showed a prospective association of infant muscle tone with autistic traits in childhood. Our findings suggest that early detection of low muscle tone might be a gateway to improve early diagnosis of ASD. Autism Res 2017, 10: 757-768. © 2017 International Society for Autism Research, Wiley Periodicals, Inc., (© 2017 International Society for Autism Research, Wiley Periodicals, Inc.)
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- 2017
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41. Relation of infant motor development with nonverbal intelligence, language comprehension and neuropsychological functioning in childhood: a population-based study.
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Serdarevic F, van Batenburg-Eddes T, Mous SE, White T, Hofman A, Jaddoe VW, Verhulst FC, Ghassabian A, and Tiemeier H
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- Child, Child, Preschool, Cognition, Executive Function, Female, Humans, Infant, Intellectual Disability epidemiology, Language Tests, Male, Memory Disorders epidemiology, Memory, Short-Term physiology, Neuropsychological Tests, Child Development physiology, Intelligence physiology, Motor Skills physiology
- Abstract
Within a population-based study of 3356 children, we investigated whether infant neuromotor development was associated with cognition in early childhood. Neuromotor development was examined with an adapted version of Touwen's Neurodevelopmental Examination between 9 and 20 weeks. Parents rated their children's executive functioning at 4 years. At age 6 years, children performed intelligence and language comprehension tests, using Dutch test batteries. At age 6-9 years, neuropsychological functioning was assessed in 486 children using the validated NEPSY-II-NL test battery. We showed that less optimal neurodevelopment in infancy may predict poor mental rotation, immediate memory, shifting, and planning; but not nonverbal intelligence or language comprehension., (© 2015 John Wiley & Sons Ltd.)
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- 2016
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42. Influenza-like illness in a community surrounding a school-based outbreak of 2009 pandemic influenza A (H1N1) virus-Chicago, Illinois, 2009.
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Janusz KB, Cortes JE, Serdarevic F, Jones RC, Jones JD, Ritger KA, Morita JY, Gerber SI, Gallagher L, Biggerstaff BJ, Hicks LA, Swerdlow DL, Fischer M, and Staples JE
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- Adolescent, Adult, Aged, Aged, 80 and over, Chicago epidemiology, Child, Child, Preschool, Family Characteristics, Female, Humans, Infant, Infant, Newborn, Male, Middle Aged, Prevalence, Young Adult, Disease Outbreaks, Family Health, Influenza A Virus, H1N1 Subtype isolation & purification, Influenza, Human epidemiology, Influenza, Human virology, Population Surveillance methods, Schools
- Abstract
In April 2009, following the first school closure due to 2009 pandemic influenza A (H1N1) (pH1N1) in Chicago, Illinois, area hospitals were inundated with patients presenting with influenza-like illness (ILI). The extent of disease spread into the surrounding community was unclear. We performed a household survey to estimate the ILI attack rate among community residents and compared reported ILI with confirmed pH1N1 cases and ILI surveillance data (ie, hospital ILI visits, influenza testing, and school absenteeism). The estimated ILI attack rate was 4.6% (95% confidence interval, 2.8%-7.4%), with cases distributed throughout the 5-week study period. In contrast, 36 (84%) of 43 confirmed pH1N1 cases were identified the week of the school closure. Trends in surveillance data peaked during the same week and rapidly decreased to near baseline. Public awareness and health care practices impact standard ILI surveillance data. Community-based surveys are a valuable tool to help assess the burden of ILI in a community.
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- 2011
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43. Adenoid cystic carcinomas of the breast have low Topo IIα expression but frequently overexpress EGFR protein without EGFR gene amplification.
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Vranic S, Frkovic-Grazio S, Lamovec J, Serdarevic F, Gurjeva O, Palazzo J, Bilalovic N, Lee LM, and Gatalica Z
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- Adult, Aged, Antigens, Neoplasm genetics, Biomarkers, Tumor metabolism, Breast Neoplasms, Male genetics, Breast Neoplasms, Male pathology, Carcinoma, Adenoid Cystic genetics, Carcinoma, Adenoid Cystic pathology, DNA Topoisomerases, Type II genetics, DNA-Binding Proteins genetics, Female, Humans, Immunohistochemistry, In Situ Hybridization, Fluorescence, Male, Mastectomy, Middle Aged, Poly-ADP-Ribose Binding Proteins, Antigens, Neoplasm metabolism, Breast Neoplasms, Male metabolism, Carcinoma, Adenoid Cystic metabolism, DNA Topoisomerases, Type II metabolism, DNA-Binding Proteins metabolism, ErbB Receptors genetics, Gene Amplification, Gene Expression Regulation, Neoplastic
- Abstract
Adenoid cystic carcinoma of the breast is a rare subtype of breast cancer with basal-like features. Published studies on breast adenoid cystic carcinoma are limited, resulting in relatively scarce information on the value of predictive tumor markers. We studied 20 primary cases of adenoid cystic carcinoma of the breast for expression of estrogen receptor, progesterone receptor, androgen receptor, epidermal growth factor receptor, HER-2/neu, and topoisomerase IIα using immunohistochemistry and fluorescent in situ hybridization methods. Estrogen and progesterone receptor expression were detected in 1 case each. All tumors were uniformly negative for Her-2/neu expression. Androgen receptor and topoisomerase IIα expression were weakly positive in three cases and 7 cases, respectively. Epidermal growth factor receptor overexpression was detected in 13 cases (65% of all cases). Amplification of TOP2A or HER-2/neu gene was not detected in any of the cases. Our study shows that the majority of adenoid cystic carcinomas of the breast do not overexpress Her-2/neu, topoisomerase IIα, or estrogen receptor, and thus, they are unlikely to respond to therapies targeting these proteins. However, these tumors frequently over-express epidermal growth factor receptor, indicating a potential benefit from anti-epidermal growth factor receptor therapy for patients with advanced adenoid cystic carcinomas of the breast., (Copyright © 2010 Elsevier Inc. All rights reserved.)
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- 2010
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44. Evaluation of new treatments in radiation oncology: are they better than standard treatments?
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Soares HP, Kumar A, Daniels S, Swann S, Cantor A, Hozo I, Clark M, Serdarevic F, Gwede C, Trotti A, and Djulbegovic B
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- Clinical Trials, Phase III as Topic, Humans, Neoplasms radiotherapy, Outcome Assessment, Health Care, Radiation Oncology, Randomized Controlled Trials as Topic
- Abstract
Context: The superiority of innovative over standard treatments is not known. To describe accurately the outcomes of innovations that are tested in randomized controlled trials (RCTs) 3 factors have to be considered: publication rate, quality of trials, and the choice of the adequate comparator intervention., Objective: To determine the success rate of innovative treatments by assessing preferences between experimental and standard treatments according to original investigators' conclusions, determining the proportion of RCTs that achieved primary outcomes' statistical significance, and performing meta-analysis to examine if the summary point estimate favored innovative vs standard treatments., Data Sources: Randomized controlled trials conducted by the Radiation Therapy Oncology Group (RTOG)., Study Selection: All completed phase 3 trials conducted by the RTOG since its creation in 1968 until 2002. For multiple publications of the same study, we used the one with the most complete primary outcomes and with the longest follow-up information., Data Extraction: We used the US National Cancer Institute definition of completed studies to determine the publication rate. We extracted data related to publication status, methodological quality, and treatment comparisons. One investigator extracted the data from all studies and 2 independent investigators extracted randomly about 50% of the data. Disagreements were resolved by consensus during a meeting., Data Synthesis: Data on 12,734 patients from 57 trials were evaluated. The publication rate was 95%. The quality of trials was high. We found no evidence of inappropriateness of the choice of comparator. Although the investigators judged that standard treatments were preferred in 71% of the comparisons, when data were meta-analyzed innovations were as likely as standard treatments to be successful (odds ratio for survival, 1.01; 99% confidence interval, 0.96-1.07; P = .5). In contrast, treatment-related mortality was worse with innovations (odds ratio, 1.76; 99% confidence interval, 1.01-3.07; P = .008). We found no predictable pattern of treatment successes in oncology: sometimes innovative treatments are better than the standard ones and vice versa; in most cases there were no substantive differences between experimental and conventional treatments., Conclusion: The finding that the results in individual trials cannot be predicted in advance indicates that the system and rationale for RCTs is well preserved and that successful interventions can only be identified after an RCT is completed.
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- 2005
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45. Totality of evidence: one of the keys to better oncology management.
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Kumar A, Soares H, and Serdarevic F
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- Efficiency, Organizational, Humans, United States, Evidence-Based Medicine, Neoplasms therapy
- Abstract
Scientists around the world publish a tremendous amount of biomedical research every year, and the process of synthesizing the published research is an uphill task. Systematic review is the most promising technique to critically appraise and synthesize the findings and also argues for the totality of evidence, which is important for effective oncology management.
- Published
- 2005
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