Alacrimia-choreoathetosis-liver dysfunction syndrome is a very rare inherited disease. It is now usually called NGLY1 deficiency or NGLY1-related congenital disorder of deglycosylation. In this condition, the body cannot make enough working N-glycanase 1 enzyme. This enzyme helps cells break down and clear certain damaged glycoproteins. When the enzyme does not work well, waste handling inside cells becomes abnormal, and this can affect the brain, eyes, liver, nerves, and growth. The disease usually starts in infancy or early childhood, and it is usually inherited in an autosomal recessive way, which means a child gets one non-working copy of the gene from each parent. [1]
Alacrimia-choreoathetosis-liver dysfunction syndrome is an ultra-rare inherited disease now more commonly called NGLY1-related congenital disorder of deglycosylation or NGLY1 deficiency. It usually starts in infancy and often causes little or no tears, abnormal twisting or writhing body movements, developmental delay, muscle weakness, liver test abnormalities, feeding problems, constipation, seizures in some children, and later nerve damage. It is caused by harmful changes in the NGLY1 gene, which normally helps the body remove sugar chains from damaged proteins so those proteins can be broken down correctly. There is no proven cure yet, so treatment is mainly supportive and symptom-based. [1][2][3]
In very simple words, this syndrome is a whole-body disorder where the body’s protein-cleaning system does not work properly. Because of that, the brain, nerves, eyes, liver, muscles, and digestive system can all be affected. Doctors usually focus on keeping the eyes wet, reducing movement problems, treating seizures if they happen, protecting nutrition and growth, managing constipation and reflux, following liver tests, and giving physical, speech, and occupational therapy over time. Care usually works best when neurology, genetics, gastroenterology, ophthalmology, rehabilitation, nutrition, and developmental specialists work together. [1][2][4]
A simple way to understand this syndrome is to remember its classic group of signs. Many affected children have very low tears or no tears, a movement disorder such as chorea or choreoathetosis, raised liver enzymes or liver dysfunction, and developmental delay or intellectual disability. Many also have low muscle tone, feeding problems, seizures in some cases, sleep apnea, nerve problems, and other brain-related symptoms. Not every child has exactly the same signs, but this group of features is strongly associated with NGLY1 deficiency. [2]
Other names
This syndrome has several other names used in medical writing. Common names include NGLY1 deficiency, NGLY1-related congenital disorder of deglycosylation, congenital disorder of deglycosylation, N-glycanase 1 deficiency, and NGLY1-CDDG. Some databases also list it under the older descriptive name alacrimia-choreoathetosis-liver dysfunction syndrome. These names describe the same rare disorder. [3]
Types
There is no widely accepted formal subtype system for this syndrome in the way seen for some other genetic diseases. Still, doctors often describe it in simple clinical groups. Type 1: classic form means the child has the usual combination of developmental delay, alacrimia or hypolacrimia, movement disorder, and liver enzyme elevation. Type 2: neurologic-predominant form means brain and movement symptoms are strongest. Type 3: liver-predominant early form means liver test abnormalities are noticed early. Type 4: multisystem form means the child has broad involvement of nerves, feeding, sleep, and growth in addition to the classic features. These are practical clinical descriptions, not official disease classes. [4]
Causes
The main true cause of this syndrome is biallelic pathogenic variants in the NGLY1 gene. In very simple words, both copies of the NGLY1 gene do not work properly. Because you asked for 20 causes, the list below gives 20 cause-related genetic and biological causes or mechanisms that can lead to the disease or explain why it happens. They are all linked to the same NGLY1 pathway problem. [5]
1. Homozygous NGLY1 mutation. This means the child inherits the same harmful NGLY1 variant from both parents. This can fully stop normal enzyme function and cause the syndrome. [6]
2. Compound heterozygous NGLY1 mutation. This means the child inherits two different harmful NGLY1 variants, one from each parent. Together, they lower or remove enzyme activity. [7]
3. Loss-of-function variant. This is a gene change that makes the NGLY1 protein unable to do its job. Loss-of-function changes are a major genetic cause of this disorder. [8]
4. Nonsense mutation. This kind of mutation creates a stop signal too early in the gene. The protein becomes short and usually does not work. [9]
5. Frameshift mutation. This changes the gene reading pattern. The result is usually a badly damaged or missing enzyme. [10]
6. Splice-site mutation. This affects how the body reads and joins gene pieces into messenger RNA. The final protein may be abnormal or absent. [11]
7. Missense mutation. This changes one building block in the protein. Some missense changes reduce enzyme action enough to cause disease. [12]
8. Deletion in the NGLY1 gene. A small or larger missing piece of the gene can stop normal enzyme production. [13]
9. Rare duplication or rearrangement affecting NGLY1. A structural gene change can disturb how the gene is read or expressed. [14]
10. Autosomal recessive inheritance. The disease appears when a child receives two non-working gene copies. Carrier parents are often healthy. [15]
11. Enzyme deficiency of N-glycanase 1. The direct biochemical cause is lack of this enzyme. Without it, cells cannot remove certain N-linked glycans from misfolded proteins in the normal way. [16]
12. Defective protein deglycosylation. Deglycosylation is the step where sugar groups are removed from some proteins before disposal. When this fails, harmful protein handling problems build up. [17]
13. Impaired cellular protein quality control. Cells need systems to check and clear damaged proteins. In NGLY1 deficiency, that control system is disturbed. [18]
14. Endoplasmic-reticulum-associated degradation pathway dysfunction. This is a cell clean-up pathway, often called ERAD. NGLY1 is an important part of this pathway. When it fails, cell stress increases. [19]
15. Toxic buildup of abnormal glycoprotein products. When proteins are not processed well, abnormal materials may remain in cells and harm tissues. [20]
16. Neuronal vulnerability. Brain cells are especially sensitive to poor protein handling, which helps explain developmental and movement problems. [21]
17. Liver cell injury from disrupted metabolic handling. The liver often shows raised transaminases early in life, likely because liver cells are also sensitive to this enzyme defect. [22]
18. Peripheral nerve involvement. The disease can affect long nerves over time, which supports the idea that nerve tissue is injured by the basic cellular defect. [23]
19. Family carrier status. A family history of carriers increases the chance of an affected child when both parents carry a harmful NGLY1 variant. [24]
20. Consanguinity in some families. When parents are biologically related, the chance of inheriting the same rare recessive variant can be higher. This is not the disease itself, but it can increase risk. [25]
Symptoms
1. Alacrimia. Alacrimia means no tears, or almost no tears, when crying. Parents may notice that the child cries without tears. This can dry the eyes and irritate the cornea. [26]
2. Hypolacrimia. Some children do make tears, but only a very small amount. This milder tear problem is also common in NGLY1 deficiency. [27]
3. Global developmental delay. The child may be late to sit, stand, walk, speak, and learn. This is one of the major signs of the disease. [28]
4. Intellectual disability. Learning and understanding may be affected from mild to profound levels. Some children need lifelong support. [29]
5. Hypotonia. Low muscle tone can make the baby feel floppy. It can also delay motor skills and feeding. [30]
6. Chorea. Chorea means quick, irregular, dance-like movements that the child cannot control. These movements can affect the face, arms, legs, or trunk. [31]
7. Athetosis. Athetosis means slow, twisting, writhing movements. When chorea and athetosis appear together, doctors may say choreoathetosis. [32]
8. Dystonia. Some children have sustained muscle tightening or abnormal postures. This can make movement harder and more painful. [33]
9. Tremor or dysmetric movement. The child may shake during action or reach past a target because movement control is poor. [34]
10. Elevated liver enzymes. Blood tests may show high AST and ALT, often early in life. Sometimes these values improve later, but they still matter for diagnosis. [35]
11. Liver dysfunction. Beyond high enzymes, some children show broader liver involvement, such as abnormal liver cell injury on testing or pathology. [36]
12. Seizures. About half of affected people may develop seizures. These are not present in every case, but they are important. [37]
13. Feeding difficulty. Oral motor weakness and poor swallow coordination can make feeding slow or unsafe. [38]
14. Sleep apnea. Some children have obstructive or central sleep apnea. This can disturb sleep and lower oxygen during the night. [39]
15. Peripheral neuropathy. Nerves in the arms and legs can slowly become affected, which may reduce reflexes and weaken movement or feeling. [40]
Diagnostic Tests
Physical Exam Tests
- General developmental and neurologic examination is a first-step test. The doctor checks muscle tone, reflexes, movement pattern, balance, milestone delay, cognition, and speech development. This exam helps doctors suspect the disorder before genetic confirmation.
- Eye examination by an ophthalmologist is important because the child may have low tears, corneal injury, retinal disease, squint, or optic nerve changes.
- Growth assessment includes weight, height, and head circumference. This helps detect failure to thrive and acquired microcephaly.
- Musculoskeletal examination checks for scoliosis, joint problems, contractures, gait limitation, and bone health concerns.
Manual Tests
- Schirmer tear test is a simple bedside eye test that uses special paper strips to measure tear production. Low wetting supports hypolacrima or alacrima.
- Feeding and swallowing evaluation helps identify oral motor dysfunction, poor feeding safety, and need for nutrition support.
- Speech and language evaluation measures receptive language, expressive language, and communication problems, which are often major disabilities in this disease.
- Nutrition evaluation checks calorie intake, growth, feeding ability, and need for supplements or tube feeding.
Lab and Pathological Tests
- Molecular genetic testing of NGLY1 is the main confirmatory test. Diagnosis is established by finding biallelic pathogenic variants in NGLY1.
- Gene-targeted deletion or duplication analysis may be added if sequencing alone does not explain the disease fully.
- Liver enzyme testing with ALT and AST is important because elevated transaminases are a classic supportive finding, especially in early childhood.
- Plasma or urine GNA testing can support the diagnosis, especially when the genetic result is uncertain. Elevated GNA is a useful biomarker in NGLY1 deficiency.
- CSF studies may show low total protein, low albumin, low CSF/serum albumin ratio, and low 5-HIAA, HVA, and tetrahydrobiopterin in some patients. These are not screening tests for every child, but they can support the biologic picture.
- Coagulation and blood protein studies such as protein C, factors II, IX, XI, and fibrinogen can be checked because some patients show hematologic or clotting-related abnormalities.
Electrodiagnostic Tests
- Auditory brainstem evoked potentials help detect auditory neuropathy and abnormal sound pathway processing.
- Nerve conduction studies are useful because they often show an axonal sensorimotor polyneuropathy with some demyelinating features.
- Needle electromyography (EMG) may show neurogenic changes and helps evaluate nerve-muscle involvement.
- QSWEAT or QSART sweat testing checks autonomic sweat response. It can show absent or reduced sweating and supports autonomic neuropathy.
- Electroencephalogram (EEG) is important in patients with seizures or suspected epilepsy. EEG abnormalities are common in affected individuals.
Imaging Tests
- Brain MRI is one of the most useful imaging tests. It can show delayed myelination in young children and progressive cerebral, and sometimes cerebellar, atrophy. Brain MRS may also show abnormal brain metabolites. In addition, DXA scan and other radiologic studies can be used when bone health, scoliosis, or contractures are concerns.
Non-pharmacological treatments
1. Regular eye lubrication routines. Because alacrimia means too few tears, the eye surface can dry out and become painful or damaged. The non-drug part of care is frequent blinking reminders, humidified air, avoiding fan wind, protective glasses outside, and regular eye checks. The purpose is to protect the cornea. The mechanism is simple: keeping moisture on the eye reduces friction, drying, and surface injury. [1][2]
2. Feeding therapy. Many children have poor oral motor control, slow chewing, choking risk, or low calorie intake. A feeding therapist can teach safer swallowing, better positioning, texture selection, pacing, and caregiver techniques. The purpose is safer eating and better growth. The mechanism is improved coordination of lips, tongue, swallowing muscles, and breathing during meals. [1][5]
3. Supplemental tube feeding when needed. This is not a drug, but it is one of the most important supportive treatments for children with poor growth, recurrent aspiration, or severe feeding fatigue. The purpose is reliable nutrition and hydration. The mechanism is direct delivery of calories and fluids into the stomach or intestine when mouth feeding is not enough or not safe. [1]
4. Physical therapy. Children often have hypotonia, movement disorder, poor balance, contracture risk, and delayed motor milestones. Physical therapy helps with stretching, strengthening, posture, gait training, transfers, and safe mobility. The purpose is function and comfort. The mechanism is repeated guided movement that supports muscles, joints, and motor learning. [1][4]
5. Occupational therapy. Occupational therapy helps hand use, daily living skills, positioning, self-care, and adaptive equipment use. The purpose is greater independence. The mechanism is task-specific practice that improves coordination and helps the child use the abilities they have more effectively in daily life. [1]
6. Speech and communication therapy. Speech delay is common. Some children also have dysarthria or swallowing problems. Therapy may include oral motor work, language exercises, and augmentative communication devices. The purpose is better communication and safer feeding. The mechanism is training the motor and language systems plus using alternative communication pathways when speech is limited. [1][2]
7. Developmental and educational support. Early intervention, special education planning, and neurodevelopmental follow-up are central parts of care. The purpose is to support learning, behavior, and daily function. The mechanism is early structured stimulation during brain development, which can improve skill acquisition even when the underlying gene problem remains. [1][4]
8. Cooling strategies for hypohidrosis. Some patients sweat too little. That can cause heat intolerance and overheating. Cool rooms, cooling vests, frequent water access, shade, and avoiding hot environments are useful. The purpose is preventing heat stress. The mechanism is reducing heat exposure when the body cannot cool itself well through sweating. [1][2]
9. Constipation routines. A high-fiber meal pattern when tolerated, fluid scheduling, toilet timing, abdominal massage, and activity can help constipation. The purpose is softer stools and less pain. The mechanism is better bowel movement rhythm and stool water content. [1][6]
10. Sleep positioning and sleep evaluation. Sleep apnea and poor sleep can happen in complex neurologic disease. Good sleep hygiene, safe positioning, and formal sleep assessment can reduce fatigue and breathing problems. The purpose is safer sleep and better daytime function. The mechanism is reducing upper airway collapse and improving sleep quality. [1]
11. Orthopedic surveillance. Scoliosis, contractures, and abnormal posture may develop over time. Regular spine and joint checks can catch problems early. The purpose is preventing pain and loss of function. The mechanism is early bracing, stretching, seating changes, and rehab before deformity becomes severe. [1]
12. Mobility aids. Walkers, wheelchairs, orthotics, supportive shoes, and seating systems can greatly improve daily life. The purpose is safe movement and less fatigue. The mechanism is external support for weak muscles, unstable joints, and poor balance. [1][4]
13. Vision monitoring. Some patients can develop optic atrophy or retinal changes. Eye specialist follow-up, low-vision tools, and school accommodations are important. The purpose is preserving function and adapting early. The mechanism is fast recognition of eye damage and practical support for reduced vision. [2][6]
14. Hearing assessment. Hearing loss can occur in some patients. Hearing checks and early devices help language development. The purpose is better communication and learning. The mechanism is improving sound input to the brain during key developmental periods. [1]
15. Liver monitoring without over-treatment. Many patients have high liver enzymes, and some improve over time. The purpose is to detect serious liver injury early while avoiding unnecessary panic. The mechanism is periodic blood tests, clinical review, and referral when warning signs appear. [2][7][8]
16. Neuropathy surveillance. Natural history studies show progressive sensorimotor neuropathy in some patients. The purpose is early recognition of weakness, pain, numbness, or foot drop. The mechanism is serial neurologic exams and, when needed, nerve testing to guide therapy and mobility support. [4][9]
17. Seizure action planning. Even before medicine changes, families benefit from a clear emergency plan, trigger tracking, rescue medicine teaching, and school instructions. The purpose is safety during seizure events. The mechanism is faster recognition and response, which reduces prolonged seizures and complications. [1][2]
18. Genetic counseling. This disease is autosomal recessive, so parents are usually carriers. The purpose is helping families understand recurrence risk, testing options, and future pregnancy planning. The mechanism is informed family planning based on the genetic cause. [3][10]
19. Regular nutrition review. Many children with rare neurogenetic disease do poorly with growth. Dietitian review can adjust calories, protein, meal texture, hydration, and micronutrients. The purpose is stronger growth and fewer feeding-related complications. The mechanism is matching nutrition intake to energy needs and swallowing ability. [1][5]
20. Family and psychosocial support. Rare disease care is heavy and long term. Parent training, respite, social work, and patient advocacy support matter. The purpose is better long-term adherence and family stability. The mechanism is reducing caregiver burnout and improving care coordination. [5][10]
Drug treatments
There is no FDA-approved drug that cures NGLY1 deficiency itself. The medicines below are symptom-directed drugs that may be used in selected patients, depending on the child’s symptoms and specialist judgment. Doses in children are individualized by age, weight, liver status, kidney status, and seizure pattern, so the exact prescription must come from the treating doctor. [1][4][11]
1. Artificial tear products and bland eye ointments. These are commonly used for alacrimia to protect the cornea. Purpose: keep the eye wet. Mechanism: replace moisture and reduce surface friction. Side effects are usually mild blurring or irritation. GeneReviews specifically recommends lubricating eye drops and bland ointments for hypolacrima. [1][2]
2. Levetiracetam. Drug class: antiseizure medicine. It may be used when seizures occur. Typical label-based use is twice daily, with dose individualized. Purpose: reduce seizure frequency. Mechanism: it binds synaptic vesicle protein SV2A and helps stabilize abnormal electrical activity. Side effects can include sleepiness, irritability, and dizziness. [12][1]
3. Diazepam rectal gel. Drug class: benzodiazepine rescue antiseizure medicine. It is used for intermittent seizure clusters, not daily prevention. Purpose: stop a prolonged seizure episode quickly. Mechanism: enhances GABA signaling in the brain. Side effects include sleepiness and breathing suppression risk. [13]
4. Clonazepam. Drug class: benzodiazepine. It may sometimes help seizures or severe hyperkinetic movements in selected patients. It is usually given in divided doses and titrated slowly. Purpose: reduce abnormal brain excitability. Mechanism: strengthens GABA-mediated inhibition. Side effects include sedation, drooling, and dependence risk. [14]
5. Valproic acid. Drug class: broad-spectrum antiseizure medicine. It may be considered for some seizure types, but because liver problems can occur in this syndrome, it needs extra caution. Purpose: seizure control. Mechanism: increases inhibitory signaling and affects sodium channels. Side effects include liver toxicity, vomiting, tremor, and pancreatitis risk. [15][7]
6. Baclofen. Drug class: antispastic muscle relaxant. It may help stiffness, painful tone, or some movement-related discomfort. It is started low and increased slowly. Purpose: reduce muscle overactivity. Mechanism: GABA-B agonist action reduces spinal reflex activity. Side effects include weakness, sleepiness, and withdrawal problems if stopped suddenly. [16]
7. Trihexyphenidyl. Drug class: anticholinergic. It is sometimes used for dystonia or difficult involuntary movements. Purpose: improve movement comfort and function. Mechanism: lowers excess cholinergic activity in motor circuits. Side effects include dry mouth, constipation, blurred vision, and confusion. In a patient with alacrimia or constipation, doctors must weigh these risks carefully. [17][2]
8. Gabapentin. Drug class: anticonvulsant/neuropathic pain medicine. It may help neuropathic pain, irritability from nerve symptoms, or sometimes additional seizure control. Purpose: symptom control. Mechanism: binds calcium channel subunits and reduces excitatory neurotransmitter release. Side effects include sleepiness and dizziness. [18][4]
9. Omeprazole. Drug class: proton pump inhibitor. Feeding problems and reflux can happen in complex neurologic disorders. Purpose: reduce acid reflux and esophageal irritation. Mechanism: blocks the stomach acid pump. Side effects can include headache, diarrhea, and with long use low magnesium or nutrient issues. [19][1]
10. Polyethylene glycol 3350. Drug class: osmotic laxative. Chronic constipation is common in reported patients. Purpose: soften stool and make bowel movements easier. Mechanism: holds water in the bowel. Side effects can include bloating or diarrhea if overused. [20][6]
11. Glycopyrrolate. Drug class: anticholinergic. It may help severe drooling in selected neurologic patients. Purpose: reduce saliva burden and aspiration risk. Mechanism: blocks muscarinic receptors and lowers secretion. Side effects include worse dry mouth, constipation, urinary retention, and overheating, so it may be a poor choice in some NGLY1 patients. [21][1]
12. Ursodiol. Drug class: bile acid. It is not a standard treatment for NGLY1 liver disease, but some liver specialists may use it when cholestatic features are present. Purpose: support bile flow in selected cases. Mechanism: changes bile composition and may protect bile ducts. Side effects include diarrhea. [22][7]
13. Vitamin D or calcitriol when deficiency is present. GeneReviews recommends vitamin D supplementation for patients with deficiency. Purpose: bone support. Mechanism: improves calcium absorption and bone mineralization. Side effects of excessive prescription vitamin D analogs include high calcium. [1][23]
14. Standard hearing-loss medicines are limited, but hearing aids are more important than drugs. This is one area where supportive devices usually help more than medication. The main purpose is speech and learning support, not biochemical correction. [1]
15. Sleep-related medicines are individualized. Some children may receive melatonin or other clinician-guided sleep support, but this is symptom-based and not disease-specific. The purpose is better sleep quality and family function. Because evidence is limited in NGLY1 itself, treatment follows general pediatric neurology practice. [1][4]
16. Pain medicines may be needed for neuropathy or orthopedic pain. The exact drug depends on age and symptoms. Purpose: comfort and function. Mechanism: varies by agent. This is common supportive care, not a direct treatment of the gene defect. [4]
17. Antibiotics when infection occurs. They do not treat the syndrome itself, but children with feeding problems, aspiration risk, or device use may sometimes need infection treatment. Purpose: control specific bacterial illness. Mechanism: drug-specific antimicrobial action. [1][5]
18. Antiemetics may be used short term if vomiting complicates feeding. The purpose is protecting hydration and nutrition. Mechanism depends on the drug chosen. Evidence is supportive only, not syndrome-specific. [1]
19. Topical eye antibiotics only when there is actual infection or corneal injury risk. They are not routine daily treatment. Purpose: prevent or treat infection after surface damage from dry eyes. Mechanism: local antibacterial action. [1][2]
20. Experimental disease-directed drugs are not yet standard care. Research has discussed proton pump inhibitors as laboratory inhibitors of ENGase, but this is not established clinical treatment for routine patient care. So today, evidence-based prescribing remains mostly symptom-directed. [24][11]
Dietary molecular supplements
Because this disease has no proven corrective nutrition therapy, supplements are used only for documented deficiency, poor intake, or supportive nutrition goals. Overuse can be harmful. [1][4]
1. Vitamin D. Helpful when blood levels are low or bone health is poor. It supports calcium handling and bone strength. [1][23]
2. Calcium. Used if intake is low or bone health is at risk. It supports bone mineralization and muscle function. [1]
3. Multivitamin. Useful when eating is limited and intake is unbalanced. It helps cover common micronutrient gaps. [1]
4. Iron. Used only if iron deficiency is proven. It supports red blood cell production and energy. [1]
5. Zinc. May be considered if low intake, poor growth, or laboratory deficiency is present. It supports growth and immune function. [5]
6. Magnesium. Sometimes helpful if intake is poor or constipation support is needed, but it must be used carefully. It supports nerve and muscle function. [19]
7. Omega-3 fatty acids. These are sometimes used as general nutritional support, though they are not proven disease-specific therapy. [5]
8. Protein supplements. Very useful when growth is poor or chewing is difficult. The goal is preserving muscle and growth. [1][5]
9. Fiber supplements. These may help constipation when fluid intake is also adequate. [20]
10. Oral rehydration support. This is especially useful during illness, poor intake, or heat exposure. The goal is hydration and temperature safety. [1]
Immunity booster, regenerative, or stem-cell drugs
At present, there are no proven FDA-approved immunity booster drugs, regenerative drugs, or stem-cell drugs for alacrimia-choreoathetosis-liver dysfunction syndrome itself. That is the most evidence-based answer. Research is active, but standard care still remains supportive. Families should be careful with clinics promising stem-cell cures, because the available literature does not support a routine, established regenerative treatment for NGLY1 deficiency. [4][11][24]
Surgeries or procedures
1. Gastrostomy tube placement. Done when oral feeding is unsafe or not enough. It improves calorie delivery and hydration. [1]
2. Nasoenteric or jejunal feeding access. Used when reflux, aspiration, or severe feeding intolerance complicates gastric feeding. [1]
3. Orthopedic surgery for severe scoliosis or contractures. Done only when deformity causes pain, respiratory compromise, or major loss of function. [1]
4. Ophthalmic procedures for severe corneal complications. Rarely needed, but important if eye surface damage becomes serious. [1][2]
5. Airway or sleep-related procedures in selected cases. These are not syndrome-specific, but may be considered if severe sleep-disordered breathing or aspiration creates danger. [1]
Prevention points
Because this is a genetic disease, you usually cannot prevent the gene change itself after conception, but you can prevent many complications. Protect the eyes from dryness, prevent overheating, treat constipation early, monitor liver tests, support nutrition, prevent falls, keep vaccinations current, use seizure rescue plans when needed, follow regular rehab, and get genetic counseling before future pregnancies. [1][2][10]
When to see doctors urgently
Seek urgent medical care for no tears with red painful eyes, long seizures, sudden sleepiness, breathing trouble, repeated vomiting, dehydration, yellow eyes or skin, swelling, black stools, fever with severe weakness, or fast worsening of movements or swallowing. These signs may point to corneal injury, seizure emergency, aspiration, dehydration, or serious liver disease. [1][7][8]
What to eat and what to avoid
Good choices usually include soft high-calorie foods, adequate protein, safe food textures chosen by a feeding therapist, fluids through the day, fiber if tolerated, and vitamin-rich foods. Avoid very dry foods if swallowing is poor, foods that trigger reflux, dehydration, overheating, and any supplement marketed as a “rare disease cure” without medical proof. In children with tube feeding, follow the dietitian’s formula plan rather than internet advice. [1][5]
FAQs
Is this the same as NGLY1 deficiency? Yes. [2][3]
Is there a cure? No proven cure yet. [4][11]
Does every patient have liver disease? No, but many have abnormal liver enzymes. [2][7]
Do all patients have seizures? No, only some do. [1][2]
Why are tears reduced? Alacrimia is part of the syndrome’s core phenotype. [2][4]
Can children improve over time? Some liver abnormalities may improve, but neurologic disability often remains long term. [2][4]
Is it inherited? Yes, usually autosomal recessive. [3]
Should siblings be tested? Genetic counseling can guide this. [10]
Are stem cells a standard treatment? No. [4][11]
Do eye drops matter? Yes, they are one of the most important daily treatments. [1]
Can constipation become serious? Yes, chronic constipation can worsen pain, feeding, and comfort. [6]
Why is physical therapy important? It helps mobility, posture, and contracture prevention. [1]
Can hearing or vision be affected? Yes. [2]
Should families watch for heat problems? Yes, especially if sweating is reduced. [1]
What is the best treatment plan? A multidisciplinary, long-term supportive plan tailored to the child’s symptoms. [1][4]
Disclaimer: Each person’s journey is unique, treatment plan, life style, food habit, hormonal condition, immune system, chronic disease condition, geological location, weather and previous medical history is also unique. So always seek the best advice from a qualified medical professional or health care provider before trying any treatments to ensure to find out the best plan for you. This guide is for general information and educational purposes only. Regular check-ups and awareness can help to manage and prevent complications associated with these diseases conditions. If you or someone are suffering from this disease condition bookmark this website or share with someone who might find it useful! Boost your knowledge and stay ahead in your health journey. We always try to ensure that the content is regularly updated to reflect the latest medical research and treatment options. Thank you for giving your valuable time to read the article.
The article is written by Team RxHarun and reviewed by the Rx Editorial Board Members
Last Updated: March 31, 2025.
