HYT Quiz

Degradation of Purine Nucleotides

Degradation of Purine Nucleotides CATABOLISM OF PURINE NUCLEOTIDES Human catabolises purine to uric acid. In higher primates, Allantoin by enzyme uricase is the end product. Adenine nucleotides catabolism- liver, heart muscle, Skeletal muscle, GIT mucosa.  Guanine nucleotides catabolism- liver, spleen, kidney, pancreas, GIT mucosa.  First metabolic product of purines is Xanthine. Exam Important Human catabolise …

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Degradation of Pyrimidine Nucleotides

Degradation of Pyrimidine Nucleotides CATABOLISM OF PYRIMIDINE NUCLEOTIDES Cytosine and Uracil to Beta Alanine — CO2, NH3 Thymine and β- aminoisobutyrate — CO2, NH3 The end products are highly water soluble. Exam Important The end products of pyrimidine catabolism are highly water soluble. E.g. CO2, NH3,  β- aminoisobutyrate, beta alanine. Pseudouridine is excreted unchanged as …

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Sjogren syndrome

Sjogren syndrome Q. 1 Biopsy of the parotid gland in a patient with Sjogren’s syndrome shows –  A Neutrophils  B Lymphocytes  C Eosinophi Is  D Basophils Q. 1 Biopsy of the parotid gland in a patient with Sjogren’s syndrome shows –  A Neutrophils  B Lymphocytes  C Eosinophi Is  D Basophils Ans. B Explanation: Ans. is …

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Sjogren syndrome

SJOGREN’S SYNDROME SJOGREN’S SYNDROME Sjogren’s syndrome is an autoimmune disorder associated with parotid glands. It is characterised by lymphocytic infiltration of salivary and lacrimal gland. It affects women more (40- 60 years) Associated with HLA- B8 & DR3. Associated with RA, SLE, and primary biliary cirrhosis. Clinical Features- Dry eyes ( keratoconjuctivitis sicca) Xerostomia Vaginal …

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