From: A wide spectrum of clinical and brain MRI findings in patients with SLC19A3mutations
Patients | Â | V-2 | V-3 | V-4 | V-6 | BBGD | Wernicke's-like |
---|---|---|---|---|---|---|---|
Present age | 18Y | 12Y(dead) | 9Y(dead) | 6Y | 9-33Y | ND | |
Sex | male | male | male | male | male, female | male | |
Consanguinity | + | + | + | + | +/- | - | |
Neurological findings | Â | Â | Â | Â | Â | Â | |
 | bad temper | 1M | 2M | 2M | 2M | ND | ND |
 | head control | - | - | - | - | + | + |
 | opisthotonic posture | 1M | - | 2M | 11M | ++ | - |
 | mental retardation | ++ | ++ | ++ | ++ | ++ (without treatment) | - |
 | dysphagia | ++ | ++ | ++ | + | + | - |
 | pyramidal signs | ++ | ++ | ++ | ++ | ++ | - |
 | quadriplegia | ++ | ++ | ++ | ++ | ++ | - |
 | dystonia | - | - | - | - | ++ | - |
 | cogwheel rigidity | - | - | - | - | ++ | - |
 | ophthalmoplegia | - | - | - | - | + | ++ |
 | nystagmus | - | - | - | - | - | ++ |
 | ataxia | - | - | - | - | - | ++ |
Seizure | Â | Â | Â | Â | Â | Â | |
 | onset | 2M | 3M | 2M | 11M | childhood | second decade |
 | type | ES→SGE | ES→SGE | ES→SGE | ES→PE | PE, SGE | PE |
Gastrostomy | 12Y | 7Y | 6Y | - | - | - | |
Tracheotomy | - | 4Y | 4Y | - | - | - | |
Pathologic brain MRI findings | 11M | 7Y | 6Y | 14M | 3-33Y | 36Y | |
 | cerebral atrophy | ++ | ++ | ++ | ++ | - | - |
 | cerebellar atrophy | ++ | + | ++ | + | - | - |
 | brain stem atrophy | + | - | - | - | - | - |
Abnormal signals in | Â | Â | Â | Â | Â | Â | |
 | thalamus | + | + | + | + | - | + |
 | caudate nuclei | + | + | + | + | + | - |
 | putamen | + | + | + | + | + | - |
 | cortical & subcortical region | - | - | - | - | + | - |
 | periaqueductal region | - | - | - | - | - | + |
Treatment | NP | NP | NP | biotin: ineffective | biotin (and thiamin): effective | thiamin: effective |