Overview
Niemann-Pick disease type C (NPC) is a slowly progressive lysosomal disorder whose principal manifestations are age dependent. The manifestations in the perinatal period and infancy are predominantly visceral, with hepatosplenomegaly, jaundice, and (in some instances) pulmonary infiltrates. Symptoms are progressive and vary by age, but typically include visceral issues like liver and spleen enlargement in early life, followed by neurological and psychiatric symptoms such as difficulty with coordination, speaking, swallowing, learning, and seizures. Treatment focuses on supportive care and managing symptoms, as there is no cure.
Cause
- NPC is caused by mutations in the NPC1 or NPC2 genes, which are responsible for producing proteins that help transport cholesterol within cells.
- The resulting inability to move and use cholesterol and other lipids leads to their excessive buildup, particularly in the lysosomes and late endosomes of cells.
Symptoms
Symptoms are progressive and can vary widely depending on the patient’s age at onset.
Early-onset
-
Primarily visceral symptoms, including:
- Jaundice
- Enlargement of the liver and spleen (hepatosplenomegaly)
- In some cases, pulmonary infiltrates
Late-onset
Predominantly neurological and psychiatric symptoms, such as:
- Neurological: Clumsiness, difficulty with coordination, loss of balance, slurred speech (dysarthria), trouble swallowing (dysphagia), progressive dementia, seizures, and vertical supranuclear gaze palsy (difficulty moving the eyes up and down).
- Psychiatric: Behavioral problems, depression, and even psychosis.
Diagnosis
- Diagnosis is made through gene sequencing or genetic testing to identify mutations in the NPC1 or NPC2 genes.
- It may also be confirmed by metabolic studies or other tests that reveal the characteristic lipid storage in cells.
Management
- No Cure: There is no cure for NPC, and treatments are limited to supportive care.
- Symptomatic Treatment: Medications can be used to manage specific symptoms, such as neurological or behavioral issues.
- Multidisciplinary Care: Management involves a team of specialists who provide supportive therapies, including occupational therapy, to improve posture, movement, and speech. NPC is a relentless, progressive disease that ultimately leads to death.
- The lifespan of affected individuals varies greatly, from a few days in some cases to over 60 years, although most patients die between the ages of 10 and 25
To conclude if you come across anyone battling with disease untreatable in your country can share the latest medical reports via email query@gtsmeditour.com and get the best assistance.
Team,
GTS