Urea. Norma uye zvinokonzera zvarakasiya.

Urea chinhu puroteni manyowa chigadzirwa. Kana zvakaitwa deamination kuti amino acids dzokugadzira amoniya. Kuitira kuderedza toxicity ayo uye neutralize, iri synthesized mune chiropa urea. Urea - kamari samolecular uremu remubatanidzwa pachena achipfuura sero membranes masero matsvuku eropa uye parenchymal nenyere. Pasinei chokwadi kuti urea pachayo yakaderera-chepfu, chepfu asi potassium ions kuti kuunganidza nayo, uye guanidine nomukaka. Ndokusaka munhu muviri kunokosha zvokuti zvechigarire vakaramba panguva inodiwa nenhanho urea. Ndozvakajairwa kwayo kugutsikana kunobva nemakore wacho, uye kunogona kuratidza kuongorora.

Urea - a osmotic vanoshingaira fuma, saka ayo kunyanya kuwanda kungaita kuti mumatenhere nyama pamusoro parenchymal nhengo, musimboti tsinga, subcutaneous zvinyama pamusoro myocardium.

Kuti aone sei zvinobudirira mudziyo iri kutoitwa glomerular itsvo, rinogona kudzidzwa sandara, sezvamakaropafadzwa plasma iri pfungwa urea. Ndozvakajairwa yawo tigutsikane mune iri serum inofanira kuva 1,8-7,5 mmol / l. Panguva iyoyowo yakadereresa mwero zvingava zvakafanana vana pasi makore 14, uye soro - vakwegura, ane zera rinosvika makore 60. In vacheche indekisi ichi vanofanira kazhinji kuva asingasviki 4.3 uye kwete asingasviki 1,4 mmol / l.

Kuti tizive wevasungwa kuti urea kuita nokukanganisika kuongorora ropa. Nokuti mufananidzo zvizere, pamwe urea zvinogonawo vakatsunga uye zviri creatine. Kana, iri migumisiro Analyses, urea akanga ikawanda, ipapo ichi anonzi uremia. Kakawanda iri vaine akaora akasiyana chirwere kuti kudhaka. Urea anogadzirwa yakawedzera uwandu panguva catabolic inoti iri kunyanyisa kushandisa mapuroteni, uye kuitwa kwemapurotini uye amino acids pashure gastric kubuda ropa. Plasma wevasungwa kuti urea inowedzera pamusana kupera mvura mumuviri nokuda rakawedzera pusa Absorção de Água kuti itsvo tubules. Pakati zvirwere kuti kukonzera vawedzere kwevari urea, zvinogona akanyorwa sezvinotevera:

• Amyloidosis, renal, pyelonephritis, glomerulonephritis, tiibhii itsvo ;
• Zvemamiriro weti kuyerera kana murombo patency kuti Urinary turakiti;
• Nyanyisa namamota uye neleukemia;
• Heart kutadza;
• ropa;
• Myocardial infarction;
• bowel mhingaidzo;
• fivhiri;
• Burns, kana kuvhunduka;
• kupera muviri;
• cachexia;

Panewo vasiri ezvinhu, kana mwero kunowandawo iyo yakaomerera muropa urea. Norm zvaida pamwero wayo anogona kupfuura somugumisiro dzose rinonetesa muviri.

Kuwedzera urea kugutsikana uye vanogona kushandisa zvimwe zvinodhaka. Pakati pavo anogona kutaurwa akadai phenylbutazone, anabolic steroids, aldomet, dopegit, Rauwolfia alkaloids, kugadzirira simbi, uye zvinodhaka nephrotoxic.

Somugumisiro, muedzo ropa zvinogona kuwanikwa kuti urea ipfupi. Zvisinei, izvi zvinoitika chaizvo kashoma. Izvi zvinoitika kazhinji muzviitiko apo kutyora chakaita zvokugadzirwa kushanda chiropa, uye kana murwere unopisa shoma mapuroteni. Kutsamwisa vasanyanye ropa urea yomuropa zvirwere zvakadai cirrhosis, hepatitis uye unogona hepatic pakoma, hyperhydration, acromegaly, chepfu nokuda Arsenic kana phosphorus, uyewo mamiriro pashure dialysis. Panguva vasiri pamwero inogona kuderedzwa panguva pamuviri urea. Norm kwayo wevasungwa muropa panguva iyi ipfupi kwazvo. Chikonzero achidzikisa urea rinogonawo kuva kudya kana nzara. Ndicho chikonzero unofanira kodzero yokutaura zvokudya.