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A disease that has its basis in the disruption of cholesterol biosynthetic process.
No HPO annotations are available for this condition.
Age of onset: at birth, infancy, childhood.
Lathosterolosis is an ultra-rare disorder of cholesterol biosynthesis. To date, seven affected individuals have been reported [, , , , , , ]. Hence, the full phenotypic spectrum is unknown at present. However, developmental delay, intellectual disability, microcephaly, facial dysmorphisms, cataracts, digit anomalies, and liver involvement appear to be consistent features of this condition . The following description of the phenotypic features associated with this condition is based on the published case reports. Table 2. Lathosterolosis: Frequency of Select Features
Lathosterolosis should be suspected in individuals with the following clinical, laboratory, imaging, and family history findings.
Clinical findings
Global developmental delays
Intellectual disability
Microcephaly
No approved treatments are currently available for cholesterol biosynthetic process disease. The disease remains an area of unmet medical need.
Gene therapy approaches for cholesterol biosynthetic process disease have been reported in the published literature.
No clinical practice guidelines for lathosterolosis have been published. Evaluations Following Initial Diagnosis To establish the extent of disease and needs in an individual diagnosed with lathosterolosis, the evaluations summarized (if not performed as part of the evaluation that led to the diagnosis) are recommended. Table 4. Lathosterolosis: Recommended Evaluations Following Initial Diagnosis
To monitor existing manifestations, the individual's response to supportive care, and the emergence of new manifestations, the evaluations summarized in are recommended. Table 6. Lathosterolosis: Recommended Surveillance
No clinical trials have been registered for cholesterol biosynthetic process disease.
346 publications have been identified in PubMed for cholesterol biosynthetic process disease. Research spans Basic Science / Preclinical (62%), Review / Meta-Analysis (20%), and Epidemiology / Natural History (11%).
Research Type | Count | % of Total |
|---|---|---|
Laboratory research | 215 | 62% |
Data assembled from 3 of 12 sources · Last updated Sep 18, 2026, 10:49 PM UTC
Feature | Proportion of Persons w/Feature1 | Comment |
|---|---|---|
Global developmental delay/ intellectual disability | 6/6 | Mild to severe |
Microcephaly | 6/6 | — |
Hypotonia | 5/6 | — |
Dysmorphic facial features | 6/6 | Bitemporal narrowing, sloping forehead, epicanthal folds, ptosis, downslanting palpebral fissures, anteverted nares, broad nasal tip, long philtrum, high-arched palate, micrognathia |
Cataracts | 6/6 | — |
Digit anomalies | 6/6 | Postaxial polydactyly, toe syndactyly, /or clinodactyly |
Liver disease | 6/6 | Seven individuals with lathosterolosis have been described in the literature thus far. However, diagnosis was established based on histopathologic and molecular studies of a fetus aborted at 21 weeks' gestation . |
Source: GeneReviews — "Lathosterolosis"
Characteristic facial features, including bitemporal narrowing, sloping forehead, epicanthal folds, ptosis, downslanting palpebral fissures, anteverted nares, broad nasal tip, long philtrum, high-arched palate, and micrognathia (similar to individuals with Smith-Lemli-Opitz syndrome)
Cataracts
Digit anomalies (postaxial polydactyly, toe syndactyly)
Liver disease
Laboratory findings
Elevated liver enzymes (alanine aminotransferase, alkaline phosphatase, and gamma-glutamyl transferase)
Elevated lathosterol level on plasma sterol analysis
Source: GeneReviews — "Lathosterolosis"
Another autosomal recessive disorder of cholesterol biosynthesis, Smith-Lemli-Opitz syndrome (SLOS), closely resembles lathosterolosis. Developmental delay, microcephaly, characteristic facial dysmorphism (epicanthal folds, ptosis, broad nasal tip, anteverted nostrils, and long philtrum), 2-3 toe syndactyly, and postaxial polydactyly are common in both conditions. Growth restriction is reported in most individuals with SLOS; other variably associated features include cleft palate, congenital heart defects, and external female genitalia in individuals with a 46,XY karyotype. Although cataract and liver disease are very common in lathosterolosis, they are relatively less common in SLOS .
Source: GeneReviews — "Lathosterolosis"
Biomarker and diagnostic research for cholesterol biosynthetic process disease has been reported in the published literature.
System/Concern | Evaluation | Comment |
|---|---|---|
Development | Developmental assessment | To incl motor, adaptive, cognitive, speech-language eval; Eval for early intervention/ special education |
Eyes | Ophthalmology eval | To assess visual acuity for cataracts Liver |
Genetic counseling | By genetics professionals1 | To inform affected persons their families re nature, MOI, implications of lathosterolosis to facilitate medical personal decision making Family support |
resources | By clinicians, wider care team, family support organizations | Assessment of family social structure to determine need for:; Community or such as Parent to Parent; Social work involvement for parental support; Home nursing referral ALP = alkaline phosphatase; ALT = alanine aminotransferase; GGT = gamma-glutamyl transferase; MOI = mode of inheritance 1. |
Lathosterolosis: Treatment of Manifestations Manifestation/Concern | Treatment | Considerations/Other Developmental delay/ |
Intellectual disability | See . | — |
Cataracts | Treatment per ophthalmologist | Cataracts may appear after birth progress gradually. |
Digit anomalies | Treatment per orthopedist | — |
Liver disease | Treatment per hepatologist | Avoid hepatotoxic drugs. |
Genitourinary anomalies | Treatment per nephrologist /or urologist | Family/Community |
Source: GeneReviews — "Lathosterolosis"
View trials for cholesterol biosynthetic process disease
Evaluation |
|---|
Frequency/Comment |
|---|
Intellectual disability | Monitor developmental milestones | At each visit throughout childhood; Neuropsychological testing using age-appropriate standardized assessment batteries; Standardized quality of life assessment tools for affected persons parents/caregivers |
Cataracts | Ophthalmology eval | Annually or more frequently for severe presentation |
Liver disease | Liver enzymes: ALT, ALP, GGT | At each visit; Liver ultrasound; FibroScan® |
Source: GeneReviews — "Lathosterolosis"
Research summaries
69 |
20% |
Disease patterns and progression | 37 | 11% |
New treatment approaches | 19 | 5% |
Testing and diagnosis research | 3 | 1% |
Clinical study results | 3 | 1% |
Guo Z (2026). [PMID: 42244315](https://pubmed.ncbi.nlm.nih.gov/42244315/). *Zhong Nan Da Xue Xue Bao Yi Xue Ban*. [Basic Science / Preclinical]
Zhang M (2026). [PMID: 41265806](https://pubmed.ncbi.nlm.nih.gov/41265806/). *Cell Signal*. [Basic Science / Preclinical]
Dai G (2026). [PMID: 41285351](https://pubmed.ncbi.nlm.nih.gov/41285351/). *Metabolism*. [Basic Science / Preclinical]
Yu Y (2026). [PMID: 41255211](https://pubmed.ncbi.nlm.nih.gov/41255211/). *Adv Sci (Weinh)*. [Basic Science / Preclinical]
Younas W (2026). [PMID: 42105832](https://pubmed.ncbi.nlm.nih.gov/42105832/). *Fish Shellfish Immunol*. [Basic Science / Preclinical]
Zhang DY (2026). [PMID: 42094593](https://pubmed.ncbi.nlm.nih.gov/42094593/). *Theranostics*. [Review / Meta-Analysis]
Ren A (2026). [PMID: 41813657](https://pubmed.ncbi.nlm.nih.gov/41813657/). *Cell Death Dis*. [Basic Science / Preclinical]
Martínez-Ramírez I (2026). [PMID: 41596244](https://pubmed.ncbi.nlm.nih.gov/41596244/). *Int J Mol Sci*. [Review / Meta-Analysis]
Zhu H (2026). [PMID: 41987278](https://pubmed.ncbi.nlm.nih.gov/41987278/). *Lipids Health Dis*. [Review / Meta-Analysis]
Shahannaz DC (2026). [PMID: 42074254](https://pubmed.ncbi.nlm.nih.gov/42074254/). *Int J Mol Sci*. [Review / Meta-Analysis]