During brain development, neural precursor cells (NPCs) in different brain regions produce different types of neurons, and each of these regions plays a different role in the adult brain. Therefore, precise regionalization is essential in the early stages of brain development, and irregular regionalization has been proposed as the cause of neurodevelopmental disorders. The mechanisms underlying brain regionalization have been well studied in terms of morphogen‐induced expression of critical transcription factors for regionalization. NPC potential in different brain regions is defined (...) by chromatin structures that regulate the plasticity of gene expression. Herein, we present recent findings on the importance of chromatin structure in brain regionalization, particularly with respect to its regulation by Polycomb‐group proteins and chromatin accessibility. (shrink)

‘Gender ’ is a troublesome loanword in Japan. While this term has been prevalent in feminist and scholarly circles, it has evoked confusion in the government and stimulated a backlash from the ultra-conservatives against gender equality. Japanese reactionaries have attacked the concept of gender because of their anxiety about cultural destruction – I thus call them the ‘old guard’. Focusing on a dispute over the term ‘gender’ between feminists and the old guard, this paper examines the changes in the term's (...) usage and meanings in the Japanese political context. I first shed light on Japan's reaction to the newly arrived term ‘gender’, outlining different attitudes towards gender between the feminist/scholarly circles and the government. Secondly, I discuss the old guard's condemnation of the concept of gender, in which they distort its significance in order to diminish its positive impact on society. I then scrutinize the old guard's reasons behind their attack on the concept of gender. My findings reveal that the old guard, whose political cause is to protect traditional Japanese culture, asserts that gender equality damages this culture. Moreover, I refute their emphasis on Japan's uniqueness, demonstrating that Japanese women's traditional virtues under the patriarchal family system are not peculiar to Japan. To gauge how the concept of gender has been interpreted politically, I highlight legislative debates about the term ‘gender’. In doing so, I elucidate the extent to which the concept of gender has infiltrated Japanese society through the dispute.Export citation Request permission. (shrink)