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Troyer syndrome

Troyer syndrome Overview Troyer syndrome is a rare, complex form of hereditary spastic paraplegia characterized by progressive muscle stiffness and weakness in the lower limbs, developmental delays, and muscle wasting A complex hereditary spastic paraplegia (HSP) that causes the slow degeneration of motor neurons and muscle cells. Symptoms Leg Problems: Progressive muscle stiffness (spasticity), weakness, and wasting in the legs, leading to difficulty walking, permanent leg shortening (contractures), and often the need for assistive devices or a wheelchair later in life. Developmental Delays : Delays in learning to walk and talk during childhood. Speech and Swallowing Issues: Speech difficulties (dysarthria), pseudobulbar palsy (trouble controlling facial muscles, chewing, and swallowing), and trouble managing oral secretions or drooling. Hand Weakness: Muscle wasting and weakness in the hands (distal amyotrophy). Physical Stature: Short stature and subtle skeletal abnormalities, su...
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Spinocerebellar ataxia type 3 (SCA3)

Spinocerebellar ataxia type 3 (SCA3) Overview               Spinocerebellar ataxia type 3 (SCA3), also known as Machado-Joseph disease, is a rare, inherited genetic disorder that causes progressive loss of balance, coordination, and movement control Symptoms Ataxia : Unsteady gait, stumbling, and poor hand-eye coordination. Spasticity and Rigidity: Tight, stiff muscles and slow movement. Dystonia: Uncontrolled muscle tensing that leads to unusual postures or twisting. Tremors: Shaking when attempting fine motor tasks or using the hands. Bulging Eyes: A distinct "staring" or wide-eyed appearance (eyelid retraction). Double Vision: Difficulty moving the eyes normally, slow eye movements, or impaired gaze (ophthalmoplegia). Dysarthria: Slow, slurred, or unclear speech. Dysphagia: Trouble swallowing, which can increase the risk of choking Peripheral Neuropathy : Numbness, tingling, cramps, or burning pain in the hands and feet. Sleep Disorders:...
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Axenfeld-Rieger Syndrome

 Axenfeld-Rieger Syndrome Overview What Is Axenfeld-Rieger Syndrome? Axenfeld-Rieger syndrome (ARS) is a rare genetic condition that affects how your child’s body develops, especially their eyes. It can also affect their teeth and other parts of their body. But this is less common. Healthcare providers usually diagnose ARS when a baby is born, or when they start showing symptoms as infants. Having ARS can affect your child’s vision and lead to other eye issues throughout their life. It’s likely that your child will develop glaucoma at some point if they have ARS. Your child will need regular eye exams as they grow and develop. Visit a healthcare provider if you notice any new symptoms or changes in your child’s eyes or body. Symptoms Healthcare providers group ARS symptoms based on where they affect your child: Ocular symptoms affect your child’s eyes. Systemic symptoms happen in other parts of their body, outside their eyes. Eye symptoms of ARS can include: Thin or underdeveloped ...
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Glycogen storage disease type 4 (GSD IV)

Glycogen storage disease type 4 (GSD IV) Overview Glycogen storage disease type 4 (GSD IV), also known as Andersen disease, is a rare inherited metabolic disorder caused by a shortage of an enzyme needed to properly structure glycogen, leading to a toxic buildup of abnormal sugar molecules in the body's tissues. You can read more about the condition on the MedlinePlus Genetics guide. Symptoms Severe hypotonia: Profoundly low muscle tone ("floppy baby" syndrome) in congenital subtypes Cardiomyopathy: Weakened or dilated heart muscle leading to potential heart failure. Respiratory failure: Weakened breathing muscles causing early mortality in severe infant presentations. Neurogenic bladder: Urinary urgency, frequency, or incontinence usually appearing after age 40. Spastic paraparesis: Progressive leg stiffness, weakness, and difficulty walking.Peripheral neuropathy: Numbness, tingling, or reduced sensation in the extremities. Causes GBE1 Gene Mutations: Changes or muta...
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Aromatase excess syndrome

Aromatase excess syndrome Overview Aromatase excess syndrome is a rare genetic and endocrine disorder that causes the body to produce too much estrogen A rare condition where genetic changes lead to the overexpression of the aromatase enzyme. Symptoms  Symptoms in Males   Gynecomastia: Enlargement of breast tissue, usually starting in late childhood or adolescence and lasting for life. Advanced Bone Age: Bones grow and mature much faster than normal during childhood. Short Stature: Early growth spurts cause boys to be tall as children, but premature closing of the growth plates results in a shorter final height as an adult. Feminizing Features: High estrogen can cause a higher-pitched voice, sparse facial hair, and mild hypogonadotropic hypogonadism (low testosterone levels). Normal Fertility: Ability to have children is typically unaffected despite hormone shifts. Symptoms in Females Macromastia: Excessive or early breast growth. Menstrual Irregularities: Early onset of...
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ADNP Syndrome

ADNP Syndrome Overview ADNP syndrome, also called Helsmoortel-Van Der Aa syndrome, is a genetic disorder that affects brain development and can lead to a wide range of challenges. The symptoms can vary greatly from one child to another, but almost all affected children have developmental and intellectual delays, difficulties with motor function, delayed or absent speech and features of autism. The disorder can potentially affect multiple systems of the body including the brain, heart, immune system, gastrointestinal system, endocrine system and musculoskeletal system. Feeding and gastrointestinal issues are common, and many infants have low muscle tone (hypotonia) that can make them appear floppy. These children might also have sensory processing disorders, sleep problems and a high tolerance for pain, making it hard for parents to know when they are hurt. Most of the affected children have distinctive facial features, and many develop early primary tooth eruption and often have a happ...
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Autosomal dominant tubulointerstitial kidney disease

Autosomal dominant tubulointerstitial kidney disease Overview Autosomal dominant tubulointerstitial kidney disease–UMOD (ADTKD-UMOD) is a rare genetic disorder caused by mutations in the UMOD gene that leads to slowly progressive chronic kidney disease and high uric acid levels Symptoms Elevated blood creatinine: Often found by chance during routine blood tests.  Decreased GFR: A drop in the glomerular filtration rate showing reduced kidney function. High uric acid and gout: High blood levels of uric acid leading to painful joint inflammation (gout) often start in the teen years for patients with specific gene types like ADTKD-UMOD. Nocturia and thirst: Waking up at night to pass urine (nocturia) or feeling an increased thirst because kidneys lose the ability to concentrate urine.  Fatigue and weakness: Extreme tiredness caused by anemia (low red blood cell count). Loss of appetite: Decreased desire to eat. High blood pressure: Can develop or modestly increase as kidney d...
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