dysgenesis in a sentence
Examples
- In particular, she is involved in researching a phenomenon where the corpus collosum is absent ( agenesis ) or disformed ( dysgenesis ) in the developing brain.
- The observable characteristics ( phenotype ) of this condition are highly variable, ranging from gonadal dysgenesis in males, to Turner-like females and phenotypically normal males.
- Blood tests for alpha-fetoprotein, karyotype, human chorionic gonadotropin, and liver function are used to diagnose germ cell tumor and potential co-occurring gonadal dysgenesis.
- Hybrid dysgenesis manifests when crossing P strain males with M strain females and not when crossing P strain females ( females with autonomous P elements ) with M strain males.
- Although MRI can detect the absence of a cervix ( agenesis ), it is unable to show cervical dysgenesis ( where the cervix is present, but malformed ).
- In the 1950s, endocrinologists developed a basic understanding of the major intersex conditions such as congenital adrenal hyperplasia ( CAH ), androgen insensitivity syndrome, and mixed gonadal dysgenesis.
- In addition to agenesis of the corpus callosum, similar conditions are hypogenesis ( partial formation ), dysgenesis ( malformed ), and hypoplasia ( underdevelopment, including too thin ).
- For this reason, in gonadal dysgenesis the accompanying hormonal failure also prevents the development of secondary sex characteristics in either sex, resulting in a sexually infantile female appearance and infertility.
- The most common cause is low levels of estrogen ( hypoestrogenism ), which may result from chronic disease, radiation or chemotherapy, Poland syndrome, extreme physical activity, or gonadal dysgenesis.
- Maternal viral infections, embryonic trauma, teratogenic environmental exposures or vascular dysgenesis ( failure of the embryo to form a satisfactory blood supply ) between four and seven weeks gestation are considered possible causes.