Laminopathy

Laminopathy
Normal nuclear lamina (a and b) and mutant nuclear lamina (c and d) from a patient with HGPS, visualized by immunofluorescence - note the irregular and bumpy shape of the laminopathic nuclei
SpecialtyClinical Genetics
SymptomsMuscle weakness, reduced sensation, shortness of breath, syncope
ComplicationsDiabetes, heart failure, arrhythmias
Usual onsetVariable
DurationLifelong
CausesGenetic
Diagnostic methodClinical, genetic testing
TreatmentPhysiotherapy, orthopaedic surgery, pacemaker, implantable defibrillator
MedicationACE inhibitor, beta blocker, aldosterone antagonist
PrognosisVariable

Laminopathies (lamino- + -pathy) are a group of rare genetic disorders caused by mutations in genes encoding proteins of the nuclear lamina. Since the first reports of laminopathies in the late 1990s, increased research efforts have started to uncover the vital role of nuclear envelope proteins in cell and tissue integrity in animals. Laminopathies are a group of degenerative diseases, other disorders associated with inner nuclear membrane proteins are known as nuclear envelopathies.