Nitrosourea Compounds
Nitrosourea compounds are a class of alkylating agents used in cancer chemotherapy, which contain a nitro group (NO2) and a urea functional group (R-NH-CO-NH2), known for their ability to cross the blood-brain barrier and damage DNA, thereby inhibiting tumor growth.
Peripheral Nervous System Neoplasms
Alkylating Agents
Highly reactive chemicals that introduce alkyl radicals into biologically active molecules and thereby prevent their proper functioning. Many are used as antineoplastic agents, but most are very toxic, with carcinogenic, mutagenic, teratogenic, and immunosuppressant actions. They have also been used as components in poison gases.
Nervous System Neoplasms
Benign and malignant neoplastic processes arising from or involving components of the central, peripheral, and autonomic nervous systems, cranial nerves, and meninges. Included in this category are primary and metastatic nervous system neoplasms.
Alkylation
Maternal-Fetal Exchange
Mutagens
Chemical agents that increase the rate of genetic mutation by interfering with the function of nucleic acids. A clastogen is a specific mutagen that causes breaks in chromosomes.
Spermatogonia
Euploid male germ cells of an early stage of SPERMATOGENESIS, derived from prespermatogonia. With the onset of puberty, spermatogonia at the basement membrane of the seminiferous tubule proliferate by mitotic then meiotic divisions and give rise to the haploid SPERMATOCYTES.