Estimates of Genetic and Environmental Components of Serum Isocitrate Dehydrogenase (ICDH) in Normal Twins

Rapaport, David; Colletto, G M D D; Vainzof, Mariz; Zatz, Mayana

doi:10.1017/s0001566000006759

Cited by 3 publications

(3 citation statements)

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“…Only five studies (0.2%) headed by Brazilian researchers were included in this meta-analysis and none are from the area of psychology. The studies were from the areas of genetics (Jacques, Salzano & Penña, 1977, Rapaport, Colletto, Vainzof & Zatz, 1991, medicine (Custodio et al, 2007), and physical education (Reis et al, 2007, Machado et al, 2010. This warrants attention considering that psychological traits were highly represented among those investigated in the meta-analysis (e.g., temperament and personality, social interactions, cognitive functions).…”

Section: The Continent Of South America Is Heavily Under-represented ...mentioning

confidence: 99%

Twin studies in behavioral and health research: current status, prospects and aplications

2021

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Twin research is expanding at an increasing rate, largely due to evidence of genetic influences on many human characteristics thought to be of mostly environmental origin, such as religiosity and political participation. Methodological advances and statistical refinements have reshaped the classic monozygotic (MZ) - dizygotic (DZ) twin comparison into one of the most informative investigative tools, without detracting from its simplicity and elegance. The book is divided into five sections that together provide a unifying framework for the different chapters. The book organizers trust that this book will stimulate further research efforts by twin researchers worldwide, and that future contributions to twin research from interested scholars and students can be expected.

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Section: The Continent Of South America Is Heavily Under-represented ...mentioning

confidence: 99%

Twin studies in behavioral and health research: current status, prospects and aplications

2021

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“…At our request, the author who coordinated the meta-analysis (Polderman et al, 2015) sent us the list of Brazilian studies, showing that they had been carried out in the fields of genetics (Callegari Jacques et al, 1977, Rapaport et al, 1991), medicine (Custodio et al, 2007), odontology (Bretz, Corby, Hart et al, 2005; Bretz. Corby, Schork et al, 2005; Bretz et al, 2006; Bretz et al, 2011; Su et al, 2008), and physical education (Machado et al, 2010; Reis et al, 2007).…”

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confidence: 99%

Brazilian Twin Studies: A Scoping Review

Fernandes,

Ferreira,

de Felipe

et al. 2024

Twin Res Hum Genet

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The current study was motivated by an interest in deepening understanding of Brazilian twin research, which is underrepresented internationally, in an effort to rectify this situation. Our aim was threefold: (1) to carry out a comprehensive investigation of Brazilian research on twins according to the area of knowledge; (2) to evaluate the representation of research in the field of psychology in comparison with other areas; (3) to evaluate characteristics of the research that may have contributed to its exclusion from the comprehensive meta-analysis of 50 years of twin research. A scoping review was performed according to PRISMA guidelines. Titles and abstracts were searched up to 2022 in six databases: CAPES, BDLTD, PePSIC, PubMed, Google Scholar, and SciELO, using selected keywords both in Portuguese and in English (e.g., ‘twins’ and ‘Brazil’; ‘twinning’ and ‘Brazil’; ‘gemelaridade’ [twinning], and ‘gêmeos’ [twins]). Three hundred and forty publications were included in the review. Approximately half (53.8‰) used the classic twin design to investigate the heritability of several traits, and the other half (46.2%) used other research designs. The scoping review showed that the number of publications doubled approximately every 10 years. Most publications were from the health area, with medicine accounting for approximately half of the studies, followed by psychology, odontology, and biology. We found that the interest in studying twins among Brazilian scientists is increasing over the years and there are reasons to be enthusiastic about the potential impact of this trend in the global scenario.

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“…From 2748 publications, only five studies were conducted by Brazilian researchers in comparison with the United States (947), United Kingdom (377) and Australia (259). These few Brazilian studies were from the areas of genetics (Jacques et al, 1977, Rapaport et al, 1991, medicine (Custodio et al, 2007), and physical education (Machado et al, 2010;Reis et al, 2007). No Brazilian psychological research was included in the meta-analysis, which is remarkable, especially considering that among the most studied issues (according to the meta-analysis) were topics related to behavioral problems, cognition, and social interaction.…”

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confidence: 99%

The University of São Paulo Twin Panel: Current Status and Prospects for Brazilian Twin Studies in Behavioral Research

et al. 2019

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The University of São Paulo Twin Panel (Painel USP de Gêmeos), based at the Institute of Psychology of the University of São Paulo, started formally in 2017. Our registry is new, but in only two years of formal existence, it comprises a volunteer sample of 4826 registered individuals (98% twins and 2% higher-order multiples), recruited at the University of São Paulo and by social media campaigns. Our main aim is to conduct and promote research with twins on psychological processes and behavior. The University of São Paulo is the largest higher education and research institution in South America, and the Painel USP de Gêmeos has great potential for fostering research on twin-related issues from a psychological perspective in Brazil and South America.

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Estimates of Genetic and Environmental Components of Serum Isocitrate Dehydrogenase (ICDH) in Normal Twins

Cited by 3 publications

References 14 publications

Twin studies in behavioral and health research: current status, prospects and aplications

Twin studies in behavioral and health research: current status, prospects and aplications

Brazilian Twin Studies: A Scoping Review

The University of São Paulo Twin Panel: Current Status and Prospects for Brazilian Twin Studies in Behavioral Research

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