From HPO
Recurrent singultus- MedGen UID:
- 893074
- •Concept ID:
- C0744897
- •
- Finding
A contraction of the diaphragm that repeats several times per minute. In humans, the abrupt rush of air into the lungs causes the epiglottis to close, creating a hic sound. Also known as synchronous diaphragmatic flutter (SDF), or singultus, from the Latin singult, the act of catching one's breath while sobbing. The hiccup is an involuntary action involving a reflex arc.
Hyperglycinuria- MedGen UID:
- 107456
- •Concept ID:
- C0543541
- •
- Disease or Syndrome
The imino acids, proline and hydroxyproline, share a renal tubular reabsorptive mechanism with glycine. Iminoglycinuria (IG; 242600), a benign inborn error of amino acid transport, is also a normal finding in neonates and infants under 6 months of age (Chesney, 2001). Early studies of families with iminoglycinuria suggested genetic complexity, with homozygotes developing IG and heterozygotes manifesting only hyperglycinuria (HG) (summary by Broer et al., 2008).
A phenotype of combined glucosuria and glycinuria has been described (see 138070).
Aggressive behavior- MedGen UID:
- 1375
- •Concept ID:
- C0001807
- •
- Individual Behavior
Aggressive behavior can denote verbal aggression, physical aggression against objects, physical aggression against people, and may also include aggression towards oneself.
Impulsivity- MedGen UID:
- 43850
- •Concept ID:
- C0021125
- •
- Mental or Behavioral Dysfunction
Acting on the spur of the moment in response to immediate stimuli; acting on a momentary basis without a plan or consideration of outcomes; difficulty establishing or following plans; a sense of urgency and self-harming behavior under emotional distress.
Lethargy- MedGen UID:
- 7310
- •Concept ID:
- C0023380
- •
- Sign or Symptom
A state of disinterestedness, listlessness, and indifference, resulting in difficulty performing simple tasks or concentrating.
Myoclonus- MedGen UID:
- 10234
- •Concept ID:
- C0027066
- •
- Sign or Symptom
Very brief, involuntary random muscular contractions occurring at rest, in response to sensory stimuli, or accompanying voluntary movements.
Seizure- MedGen UID:
- 20693
- •Concept ID:
- C0036572
- •
- Sign or Symptom
A seizure is an intermittent abnormality of nervous system physiology characterised by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.
Encephalopathy- MedGen UID:
- 39314
- •Concept ID:
- C0085584
- •
- Disease or Syndrome
Encephalopathy is a term that means brain disease, damage, or malfunction. In general, encephalopathy is manifested by an altered mental state.
Hyperreflexia- MedGen UID:
- 57738
- •Concept ID:
- C0151889
- •
- Finding
Hyperreflexia is the presence of hyperactive stretch reflexes of the muscles.
Corpus callosum, agenesis of- MedGen UID:
- 104498
- •Concept ID:
- C0175754
- •
- Congenital Abnormality
The corpus callosum is the largest fiber tract in the central nervous system and the major interhemispheric fiber bundle in the brain. Formation of the corpus callosum begins as early as 6 weeks' gestation, with the first fibers crossing the midline at 11 to 12 weeks' gestation, and completion of the basic shape by age 18 to 20 weeks (Schell-Apacik et al., 2008). Agenesis of the corpus callosum (ACC) is one of the most frequent malformations in brain with a reported incidence ranging between 0.5 and 70 in 10,000 births. ACC is a clinically and genetically heterogeneous condition, which can be observed either as an isolated condition or as a manifestation in the context of a congenital syndrome (see MOLECULAR GENETICS and Dobyns, 1996). Also see mirror movements-1 and/or agenesis of the corpus callosum (MRMV1; 157600).
Schell-Apacik et al. (2008) noted that there is confusion in the literature regarding radiologic terminology concerning partial absence of the corpus callosum, where various designations have been used, including hypogenesis, hypoplasia, partial agenesis, or dysgenesis.
Hyperactivity- MedGen UID:
- 98406
- •Concept ID:
- C0424295
- •
- Finding
Hyperactivity is a state of constantly being unusually or abnormally active, including in situations in which it is not appropriate.
Hyporeflexia- MedGen UID:
- 195967
- •Concept ID:
- C0700078
- •
- Finding
Reduction of neurologic reflexes such as the knee-jerk reaction.
Irritability- MedGen UID:
- 397841
- •Concept ID:
- C2700617
- •
- Mental Process
A proneness to anger, i.e., a condition of being easily bothered or annoyed.
Intellectual disability- MedGen UID:
- 811461
- •Concept ID:
- C3714756
- •
- Mental or Behavioral Dysfunction
Subnormal intellectual functioning which originates during the developmental period. Intellectual disability, previously referred to as mental retardation, has been defined as an IQ score below 70.
Restlessness- MedGen UID:
- 854457
- •Concept ID:
- C3887611
- •
- Sign or Symptom
A state of unease characterized by diffuse motor activity or motion subject to limited control, nonproductive or disorganized behavior, and subjective distress.
Hypotonia- MedGen UID:
- 10133
- •Concept ID:
- C0026827
- •
- Finding
Hypotonia is an abnormally low muscle tone (the amount of tension or resistance to movement in a muscle). Even when relaxed, muscles have a continuous and passive partial contraction which provides some resistance to passive stretching. Hypotonia thus manifests as diminished resistance to passive stretching. Hypotonia is not the same as muscle weakness, although the two conditions can co-exist.
Generalized hypotonia- MedGen UID:
- 346841
- •Concept ID:
- C1858120
- •
- Finding
Generalized muscular hypotonia (abnormally low muscle tone).
Hyperglycinemia- MedGen UID:
- 82817
- •Concept ID:
- C0268559
- •
- Disease or Syndrome
An elevated concentration of glycine in the blood.
- Abnormality of metabolism/homeostasis
- Abnormality of the genitourinary system
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system
- Constitutional symptom