RESUMO
In modern diabetology, the most important condition for a personalized approach to patient management is to determine the type of diabetes mellitus. Particular attention is drawn to a large, but at the same time insufficiently studied group of patients with diabetes mellitus due to diseases of the pancreas or as a result of surgical interventions on the pancreas, in particular, patients who, for a number of vital indications, undergo total pancreatectomy and the mechanism of development of impaired glucose homeostasis have not been studied in these patients. To date, there are no specific algorithms for managing this category of patients. This clinical example emphasizes that the management of glycemia in patients with diabetes mellitus as a result of total pancreatectomy is an extremely difficult task that requires a multidisciplinary approach in the treatment of this category of patients, the participation of an endocrinologist at all stages of patient treatment.
Assuntos
Diabetes Mellitus , Pancreatectomia , Humanos , Pancreatectomia/efeitos adversos , Glicemia , PâncreasRESUMO
A method for synthesis of retinal analogs labeled with electron-density groups is suggested. The interaction of these polyene compounds with bacterioopsin in apomembrane of Halobacterium salinarum was tested. A retinal analog containing a crown-ether receptor group is able to interact readily with bacterioopsin giving rise to rapid formation of a pigment with absorption maximum at 460 nm. This pigment is capable of undergoing cyclic photoconversion. The crown-bacteriorhodopsin photocycle is extremely slow and its quantum efficiency is very low (approximately 3% of that in native bacteriorhodopsin). This photocycle includes an M-like intermediate with a differential absorption maximum at 380 nm. A retinal analog in which the beta-ionone ring is replaced by ferrocene moiety forms a stable chromoprotein with the main absorption band at 483 nm and a shoulder near 590-610 nm.