Search for dissertations about: "gonadal development"
Showing result 1 - 5 of 26 swedish dissertations containing the words gonadal development.
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1. Novel genes in gonadal development
Abstract : Mammalian sex determination and differentiation can be divided into three major steps. In the first step, which occurs at fertilisation, the genetic sex is established, XX or XY. In the second step, development of the indifferent gonad into either an ovary or a testis takes place. READ MORE
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2. Molecular mechanisms in disorders of gonadal development
Abstract : Controlling fertility, or rather infertility, is a common problem for couples nowadays where approximately 10% experience infertility. This thesis focuses on the rare conditions leading to infertility in which the gonads have either failed to develop properly, or prematurely lost their function. READ MORE
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3. Gonad development and male gametogenesis
Abstract : Testicular and ovarian organogenesis involve a pathway of developmental genes which are differentially regulated in males and females. In mammals, sex determination is controlled by a dominant gene, SRY, located on the Y chromosome. READ MORE
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4. Artificial testis to study early gonadal development and germ cell differentiation
Abstract : Studying the early germ cell development is of great significance, as germ cells transfer the genetic material between generations. However, in humans, this type of studies in vivo is not applicable, for obvious ethical reasons. READ MORE
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5. Mechanisms in disorders of sex development
Abstract : “Is it a boy or a girl?” This is usually the first question that parents have when their baby is born. Sometimes it is not possible to give an immediate answer. This is the case when the newborn presents ambiguous external genitalia and an immediate sex assignment is not possible. READ MORE
