Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Medical Sciences
Malignant Peripheral Nerve Sheath Tumor (Mpnst): An Overview With Emphasis On Pathology, Imaging And Management Strategies., Timothy C. Beer
Malignant Peripheral Nerve Sheath Tumor (Mpnst): An Overview With Emphasis On Pathology, Imaging And Management Strategies., Timothy C. Beer
Timothy C Beer
MPNSTs are rare malignancies that are classically associated with pre-existing plexiform neurofibromas in neurofibromatosis type 1 (NF-1) patients, but also occur in association with radiation as well as sporadically in patients with no known risk factors. The typical presentation of sporadic MPNST is a new painless enlarging mass. The typical presentation of MPNST in an NF-1 patient is rapid enlargement or new onset of pain associated with a pre-existing plexiform neurofibroma. Although both MPNST and benign neurofibromas share in common the absence of neurofibromin function due to loss of both NF-1 alleles, malignant transformation to MPNST requires several additional aberrations, …
Sudden Infant Death Syndrome: Postulated Role Of Impaired Vasoactive Neuropeptide-Related Inflammatory Modulation, Donald Staines, Ekua Brenu, Sonya Marshall-Gradisnik
Sudden Infant Death Syndrome: Postulated Role Of Impaired Vasoactive Neuropeptide-Related Inflammatory Modulation, Donald Staines, Ekua Brenu, Sonya Marshall-Gradisnik
Sonya Marshall-Gradisnik
Sudden infant death syndrome (SIDS) has been extensively investigated in the context of infection as a contributing factor in the death of otherwise apparently healthy infants. A number of infectious agents have been implicated suggesting the causal pathomechanism is related to infection, but not necessarily solely attributable to any one type of infection. An alternative provocative hypothesis is that of post-infection autoimmunity affecting critical novel neurotransmitters of the vasoactive neuropeptide family. Their role in respiratory and cardiac functioning together with novel hypotheses postulating their autoimmune compromise may suggest a role in SIDS etiology following infection. Animal models demonstrate their vital …