SummarySeveral neuronal populations orchestrate neocortical development during mammalian embryogenesis. These include the glutamatergic subplate-, Cajal-Retzius-, and ventral pallium-derived populations, which coordinate cortical wiring, migration, and proliferation, respectively. These transient populations are primarily derived from other non-cortical pallial sources that migrate to the dorsal pallium. Are these migrations to the dorsal pallium conserved in amniotes or are they specific to mammals? Using in ovo electroporation, we traced the entire lineage of defined chick telencephalic progenitors. We found that several pallial sources that produce tangential migratory neurons in mammals only produced radially migrating neurons in the avian brain. Moreover, ectopic expression of VP-specific mammalian Dbx1 in avian brains altered neurogenesis but did not convert the migration into a mammal-like tangential movement. Together, these data indicate that tangential cellular contributions of glutamatergic neurons originate from outside the dorsal pallium and that pallial Dbx1 expression may underlie the generation of the mammalian neocortex during evolution.
With a growing number of TC survivors, a thorough investigation is required into their sexuality, both in an individual and dyadic dimension, so as to improve the quality of life of the affected young men, who take on their new social and professional roles in the period of highest reproductiveness.
Breast cancer is the most common type of cancer among women worldwide. The number of breast cancer survivors has been growing because of earlier detection and improved treatment. Young women under 50 years of age account for relatively small percentage of all newly diagnosed breast cancer patients. However, their medical and psychosocial context of the disease is unique. Breast cancer is diagnosed at the most productive time in life. Concerns about childbearing, partner rejection, sexual function, body image, sexual attractiveness and career are common. For all these reasons experience of breast cancer diagnosis and treatment among young women requires special attention. Researches indicate that oncological treatment may negatively affect female sexual functioning. Chemotherapy is one of the greatest risk factors of sexual dysfunctions, especially when it results in medication-induced menopause. The duration and severity of sexual problems depend on a wide variety of factors: medical, psychological and interpersonal. These side effects may last for many years after the end of treatment. It is known that breast cancer affects both patients and their partners. The first sexual experience after surgery may be a turning point in sexual adaptation in couples. Communication is crucial in this process. More knowledge about sexual difficulties and sexual adaptation process of young breast cancer survivors (YBCSs) and their partners is needed. Knowing protective and risk factors is necessary to identify couples at risk for sexual dysfunctions in order to professionally support them in the best way and at the right time.
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