From HPO
Hyperlysinuria- MedGen UID:
- 867368
- •Concept ID:
- C4021733
- •
- Finding
An increased concentration of lysine in the urine.
Dibasicaminoaciduria- MedGen UID:
- 871169
- •Concept ID:
- C4025643
- •
- Disease or Syndrome
An increased level of a dibasic amino acid in the urine. Dibasic amino acids are usually referred to simply as basic aminoacids because they contain basic side chains at neutral pH. These are arginine (Arg), lysine (Lys), and histidine (His).
Growth delay- MedGen UID:
- 99124
- •Concept ID:
- C0456070
- •
- Pathologic Function
A deficiency or slowing down of growth pre- and postnatally.
Malabsorption- MedGen UID:
- 811453
- •Concept ID:
- C3714745
- •
- Finding
Impaired ability to absorb one or more nutrients from the intestine.
Coma- MedGen UID:
- 1054
- •Concept ID:
- C0009421
- •
- Disease or Syndrome
The complete absence of wakefulness and consciousness, which is evident through a lack of response to any form of external stimuli.
Lethargy- MedGen UID:
- 7310
- •Concept ID:
- C0023380
- •
- Sign or Symptom
A state of disinterest, listlessness, and indifference, resulting in difficulty performing simple tasks or concentrating.
Intellectual disability- MedGen UID:
- 811461
- •Concept ID:
- C3714756
- •
- Mental or Behavioral Dysfunction
Intellectual disability, previously referred to as mental retardation, is characterized by subnormal intellectual functioning that occurs during the developmental period. It is defined by an IQ score below 70.
Hyperlysinemia- MedGen UID:
- 82816
- •Concept ID:
- C0268553
- •
- Disease or Syndrome
Hyperlysinemia type I is an autosomal recessive metabolic condition with variable clinical features. Some patients who present in infancy with nonspecific seizures, hypotonia, or mildly delayed psychomotor development have been found to have increased serum lysine and pipecolic acid on laboratory analysis. However, about 50% of probands are reported to be asymptomatic, and hyperlysinemia is generally considered to be a benign metabolic variant (summary by Tondo et al., 2013; Houten et al., 2013).
The AASS gene encodes a bifunctional enzyme: lysine alpha-ketoglutarate reductase and saccharopine dehydrogenase. In hyperlysinemia type I, both enzymatic functions of AASS are defective; in hyperlysinemia type II, also known as saccharopinuria (268700), some of the first enzymatic function is retained (Cox, 1985; Cox et al., 1986).
Hyperammonemia- MedGen UID:
- 1802066
- •Concept ID:
- C5574662
- •
- Laboratory or Test Result
An increased concentration of ammonia in the blood.
- Abnormality of metabolism/homeostasis
- Abnormality of the digestive system
- Abnormality of the genitourinary system
- Abnormality of the nervous system
- Growth abnormality