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Chemiexcitation and Its Implications for Disease.
Brash, Douglas E; Goncalves, Leticia C P; Bechara, Etelvino J H.
Afiliación
  • Brash DE; Departments of Therapeutic Radiology and Dermatology, and Yale Cancer Center, Yale University School of Medicine, New Haven, CT 06520-8040, USA. Electronic address: douglas.brash@yale.edu.
  • Goncalves LCP; Departments of Therapeutic Radiology and Dermatology, and Yale Cancer Center, Yale University School of Medicine, New Haven, CT 06520-8040, USA.
  • Bechara EJH; Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo 05513-970 SP, and Departamento de Ciências Exatas e da Terra, Universidade Federal de São Paulo, Diadema, São Paulo 09972-270 SP, Brazil.
Trends Mol Med ; 24(6): 527-541, 2018 06.
Article en En | MEDLINE | ID: mdl-29751974
ABSTRACT
Quantum mechanics rarely extends to molecular medicine. Recently, the pigment melanin was found to be susceptible to chemiexcitation, in which an electron is chemically excited to a high-energy molecular orbital. In invertebrates, chemiexcitation causes bioluminescence; in mammals, a higher-energy process involving melanin transfers energy to DNA without photons, creating the lethal and mutagenic cyclobutane pyrimidine dimer that can cause melanoma. This process is initiated by NO and O2- radicals, the formation of which can be triggered by ultraviolet light or inflammation. Several chronic diseases share two properties inflammation generates these radicals across the tissue, and the diseased cells lie near melanin. We propose that chemiexcitation may be an upstream event in numerous human diseases.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fenómenos Bioquímicos / Susceptibilidad a Enfermedades Límite: Animals / Humans Idioma: En Revista: Trends Mol Med Asunto de la revista: BIOLOGIA MOLECULAR Año: 2018 Tipo del documento: Article

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fenómenos Bioquímicos / Susceptibilidad a Enfermedades Límite: Animals / Humans Idioma: En Revista: Trends Mol Med Asunto de la revista: BIOLOGIA MOLECULAR Año: 2018 Tipo del documento: Article
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