0000000000804801
AUTHOR
F. R. Canevari
The role of Leptin in laryngeal squamous cell carcinoma
Leptin is a peptide produced by peptidergic cells or those able to process and secrete peptides. Originally, this function was considered proper and exclusive of certain neurons of the magnocellular and parvicellular hypothalamus. These cells originated from a common precursor, namely neural crest cells, which have the ability to produce hormonal neuropeptides. From this primitive neuroectodermal site, cells migrate to other organs: the gastro-entero-pancreatic system (GEP), the lung, heart, reproductive and urinary systems. Leptin is considered the typical neuropeptide with an anorexic function, and is also called the âsatiety hormoneâ because it plays a key role in the control of ener…
Diagnosis and treatment of Ewing's Sarcoma of the tongue
The Ewing's sarcoma Family of Tumors (EFT) includes classic Ewing's Sarcoma (ES) of bone, Extraskeletal Ewing's Sarcoma (EES) and malignant peripheral primitive Neuroectodermal Tumor (pNET) of bone and soft tissue. ES is an aggressive tumor with a high incidence of local recurrence and distant metastasis. The skeletal form is more common and typically occurs in the long bones of the extremities. The extra skeletal form occurs in the soft tissues of the lower extremities, paravertebral tissues, chest wall, retroperitoneum and rarely in the head and neck region in about 1- 4% of cases. Involvement of the head and neck is usually identified in the nasal or oral cavities, sinuses or soft tissue…