Inborn errors of amino acid, organic acid metabolism and disorders of the urea cycle

نویسندگان

چکیده

??vod: DÄ?dičnÄ? podm?­nÄ?n?Š poruchy metabolismu (DPM) aminokyselin (AMK), organick??ch kyselin (OA) a cyklu močoviny (UCD) p??edstavuj?­ heterogenn?­ skupinu 135 r??zn??ch onemocnÄ?n?­ zp??soben??ch poru??enou synt?Šzou, transportem či odbour??v??n?­m AMK, OA amoniaku. Jednotliv?? jsou vz??cn??, ale celkov?? v??skyt v populaci je 1 : 3000-4000. Metodika: Pr??ce shrnuje klinick?Š, diagnostick?Š terapeutick?Š aspekty nejčastÄ?j???­ch DPM-AMK, UCD. Osm nemoc?­ souč??st?­ laboratorn?­ho novorozeneck?Šho screeningu, diagnostika ostatn?­ch DPM z??vis?­ na klinick?Šm podez??en?­, stanoven?­ amoniaku krvi rychl?Š indikaci selektivn?­ho metabolick?Šho screeningu. V??sledky: UCD se klinicky projevuj?­ akutn?­m nebo subakutn?­m rozvratem s metabolickou alkal??zou acid??zou n??sledn??m posti?žen?­m funkc?­ jater, ledvin a/nebo mozku pomalu progreduj?­c?­m CNS zpomalen?­m v??voje poruchou kognitivn?­ch funkc?­. Do prvn?­ skupiny pat???­ OA, tyrosinemie typu 1, leucin??za UCD, kter?Š hromadÄ?n?­m toxick??ch metabolit?? vznikaj?­c?­ch p??i degradaci aminokyselin. druh?Š fenylketonurie homocystinurie, u p??idru?žuje i posti?žen?­ oč?­, kost?­ tromboembolick?Š p???­hody. Z??vÄ?r: Adekv??tn?­ terapie včasn?Š diagnostice. U pacient?? mozku, nap???­klad tÄ??žk?Š hyperamonemii, pou?ž?­vaj?­ eliminačn?­ metody. pomaleji onemocnÄ?n?­m uplat??uje celo?životn?­ n?­zkob?­lkovinn?? dieta suplementovan?? potravinami pro zvl????tn?­ l?Ška??sk?Š ??čely, vitaminoterapie chaperonov?? podporuj?­c?­ aktivity posti?žen??ch enzym?? snaha blokovat aktivovat alternativn?­ metabolick?Š dr??hy. Zvy??uje počet onemocnÄ?n?­, kter??ch pou?ž?­v?? enzymov?? substitučn?­ transplantace jater ledvin. NovÄ? prob?­haj?­ trialy genovou terapi?­.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Screening for inborn errors of amino acid metabolism.

Early diagnosis and treatment may prevent brain damage and mental retardation in young infants with inborn errors of amino acid metabolism. The abnormal blood and urinary amino acids and their metabolites are listed in two separate tables in association with each disorder to aid laboratories in making a diagnosis during screening. Because of recent developments and discoveries, more detailed de...

متن کامل

Inborn Errors of Bile Acid Metabolism

Bile acids are synthesized by the liver from cholesterol through a complex series of reactions involving at least 14 enzymatic steps. A failure to perform any of these reactions will block bile acid production with failure to produce ‘‘normal bile acids’’ and, instead, result in the accumulation of unusual bile acids and intermediary metabolites. Failure to synthesize bile acids leads to reduce...

متن کامل

Free amino acid pattern in the liver from the patients with amino acid disorders: postmortem diagnosis of inborn errors of amino acid metabolism.

TADA, K., Y OSHIDA, T. and ARAAAWA, Ts. Free Amino Acid Pattern in the Liver from the Patients with Amino Acid Disorders: Postmortem Diagnosis of Inborn Errors of Amino Acid Metabolism. Tohoku J. exp. Med., 1970, 101 (3), 223-226 Free amino acid concentrations were determined in the liver biopsied or autopsied from the patients with amino acid disorder and from several controls. The results sho...

متن کامل

Urea-cycle disorders as a paradigm for inborn errors of hepatocyte metabolism.

Urea-cycle disorders (UCDs) are a group of inborn errors of hepatocyte metabolism that are caused by the loss of enzymes involved in the process of transferring nitrogen from ammonia to urea, via the urea cycle (UC). Recent genetic analyses of inherited disorders that present with hyperammonemia demonstrate the function of cellular transporters that regulate the availability of UC intermediates...

متن کامل

The Effect of Amino Acid, Carbohydrate, and Lipid Metabolism Disorders on Eyes

Inherited metabolic disorders (IMDs) are a class of genetic disorders. Each metabolic disorder may have different forms with different age of onset, clinical manifestations, severity, and even type of inheritance. Ideally, a group of different specialists, including ophthalmologists, pediatricians, biochemists, and medical geneticists are needed for the final diagnosis and management of IMDs. B...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Ceskoslovenska? pediatrie

سال: 2022

ISSN: ['0069-2328']

DOI: https://doi.org/10.55095/cspediatrie2022/066