Rare Medical News
Disease Profile
Northern epilepsy
Prevalence estimates on Rare Medical Network websites are calculated based on data available from numerous sources, including US and European government statistics, the NIH, Orphanet, and published epidemiologic studies. Rare disease population data is recognized to be highly variable, and based on a wide variety of source data and methodologies, so the prevalence data on this site should be assumed to be estimated and cannot be considered to be absolutely correct.
Unknown
Age of onset
Childhood
ICD-10
E75.4
Inheritance
Autosomal dominant A pathogenic variant in only one gene copy in each cell is sufficient to cause an autosomal dominant disease.
Autosomal recessive Pathogenic variants in both copies of each gene of the chromosome are needed to cause an autosomal recessive disease and observe the mutant phenotype.
X-linked
dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.
dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.
X-linked
recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder.
recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder.
Mitochondrial or multigenic Mitochondrial genetic disorders can be caused by changes (mutations) in either the mitochondrial DNA or nuclear DNA that lead to dysfunction of the mitochondria and inadequate production of energy.
Multigenic or multifactor Inheritance involving many factors, of which at least one is genetic but none is of overwhelming importance, as in the causation of a disease by multiple genetic and environmental factors.
Not applicable
Other names (AKA)
CLN8; Neuronal ceroid lipofuscinosis 8; Ceroid lipofuscinosis neuronal 8;
Categories
Congenital and Genetic Diseases; Metabolic disorders; Nervous System Diseases;
Summary
Northern
Symptoms
This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.
| Medical Terms | Other Names |
Learn More:
HPO ID
|
|---|---|---|
| 80%-99% of people have these symptoms | ||
| Bilateral tonic-clonic |
Grand mal seizures
|
0002069 |
| Clumsiness | 0002312 | |
| 0002353 | ||
| Focal impaired awareness seizure | 0002384 | |
| Progressive visual loss |
Progressive loss of vision
Progressive vision loss
Progressive visual impairment
Slowly progressive visual loss
Vision loss, progressive
Visual loss, progressive
[ more ] |
0000529 |
| Restlessness | 0000711 | |
| 30%-79% of people have these symptoms | ||
|
Loss of developmental milestones
Mental deterioration in childhood
[ more ] |
0002376 | |
|
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation
[ more ] |
0001249 | |
| Mental deterioration |
Cognitive decline
Cognitive decline, progressive
Intellectual deterioration
Progressive cognitive decline
[ more ] |
0001268 |
| Psychosis | 0000709 | |
| Percent of people who have these symptoms is not available through HPO | ||
| 0001251 | ||
| 0000007 | ||
| Cerebellar atrophy |
Degeneration of cerebellum
|
0001272 |
| Cerebral atrophy |
Degeneration of cerebrum
|
0002059 |
| Curvilinear intracellular accumulation of autofluorescent lipopigment storage material | 0003205 | |
| Delayed speech and language development |
Deficiency of speech development
Delayed language development
Delayed speech
Delayed speech acquisition
Delayed speech development
Impaired speech and language development
Impaired speech development
Language delay
Language delayed
Language development deficit
Late-onset speech development
Poor language development
Speech and language delay
Speech and language difficulties
Speech delay
[ more ] |
0000750 |
| Increased neuronal autofluorescent lipopigment | 0002074 | |
| Myoclonus | 0001336 | |
| Seizure | 0001250 | |
Diagnosis
Making a diagnosis for a genetic or rare disease can often be challenging. Healthcare professionals typically look at a person’s medical history, symptoms, physical exam, and laboratory test results in order to make a diagnosis. The following resources provide information relating to diagnosis and testing for this condition. If you have questions about getting a diagnosis, you should contact a healthcare professional.
Testing Resources
- The Genetic Testing Registry (GTR) provides information about the genetic tests for this condition. The intended audience for the GTR is health care providers and researchers. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.
Related diseases
Related diseases are conditions that have similar signs and symptoms. A health care provider may consider these conditions in the table below when making a diagnosis. Please note that the table may not include all the possible conditions related to this disease.
|
Conditions with similar signs and symptoms from Orphanet
|
|---|
|
The differential diagnosis should include other causes of dementia and seizures starting at school age, including atypical forms of other NCL disorders (typically juvenile NCL (see this term) caused by mutations in PPT1 (CLN1 disease), TPP1 (CLN2 disease), or CTSD (CLN10 disease)), as well as mitochondrial disorders and chronic types of encephalitis (see these terms).
Visit the Orphanet disease page for more information.
|
Organizations
Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.
Organizations Supporting this Disease
-
Batten Disease Support and Research Association (BDSRA)
2780 Airport Drive, Suite 342
Columbus, OH 43219
Toll-free: 1-800-448-4570
Fax: 1-866-648-8718
E-mail: https://bdsra.org/contact-us/
Website: https://bdsra.org/
Learn more
These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.
Where to Start
- MedlinePlus was designed by the National Library of Medicine to help you research your health questions, and it provides more information about this topic.
- Genetics Home Reference contains information on Northern epilepsy. This website is maintained by the National Library of Medicine.
- The National Institute of Neurological Disorders and Stroke (NINDS) (NINDS) collects and disseminates research information related to neurological disorders. Click on the link to view information on this topic.
In-Depth Information
- GeneReviews provides current, expert-authored, peer-reviewed, full-text articles describing the application of genetic testing to the diagnosis, management, and genetic counseling of patients with specific inherited conditions.
- Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
- The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
- Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine.
- Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
- PubMed is a searchable database of medical literature and lists journal articles that discuss Northern epilepsy. Click on the link to view a sample search on this topic.
References
- Northern epilepsy. Genetics Home Reference. September 2013; https://ghr.nlm.nih.gov/condition/northern-epilepsy.
- Mole SE, Williams RE. Neuronal Ceroid-Lipofuscinoses. GeneReviews. August 1, 2013; https://www.ncbi.nlm.nih.gov/books/NBK1428/.
- Chang CH. Neuronal Ceroid Lipofuscinoses. Medscape Reference. May 4, 2017; https://emedicine.medscape.com/article/1178391-overview.