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Query: UMLS:C0033377 (
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11,717
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A girl of 10-5/12 years is described, who had diabetes mellitus from the age of 5 years on and who developed bilateral
ptosis
, pigment degeneration of the retina and bilateral impairment of hearing at the age of nine years. A few weeks before death she suffered from an acute gastrointestinal infection which was successfully treated by a hydroxyquinoline derivative. In the days following a severe encephalopathy and signs of cardiac involvement appeared. A month later the girl died of bulbar paralysis and acute heart failure. Histology showed remnants of a granulomatous inflammation in the heart, the kidneys, the pancreas and the skeletal muscles. Furthermore there was a widespread spongiosis in the white substance of the brain, with large astrocytes, and partly also in the basal ganglia, the brain stem and the cerebellum. Foci of sudanophilic tissue necrosis resembling Wernicke's Encephalopathy were found in the medulla oblongata and the spinal cord. The peripheral nerves appeared partially demyelinated and showed
axonal
lesions. This case is classified as a Juvenile Type of so-called Canavan's Disease. It shows some resemblence to the "Progressive Chronic Ophthalmoplegia with Spongiform Encephalopathy described by Daroff, Kearn and Sayre. The possible neurotoxical effects of the hydroxyquinoline therapy are discussed.
...
PMID:[Juvenile spongy dystrophy of CNS with necrosis of the medulla. A. complication of hydroxyquinoline therapy (author's transl)]. 124 13
We studied 4 siblings (3 men and 1 woman), ages 22 to 43 years, with congenital
ptosis
, external ophthalmoplegia, proximal muscle weakness and fatigability unresponsive to acetylcholinesterase (AChE) inhibitors. Repetitive nerve stimulation showed a significant compound muscle action potential (CMAP) area decrement at 2 or 3 Hz. Nerve conduction studies and concentric needle electromyography were normal, and repetitive CMAPs to single nerve stimulation were not observed. Voluntary single fiber electromyography (SFEMG) showed increased jitter and blocking. Assessment of individual end-plates using SFEMG with intramuscular
axonal
microstimulation showed no uniform relationship between jitter and the rate of stimulation, consistent with a postsynaptic defect of neuromuscular transmission. Edrophonium eliminated the decremental response to repetitive nerve stimulation, but caused no significant clinical improvement, suggesting an additional mechanism for weakness in these patients.
...
PMID:A congenital myasthenic syndrome refractory to acetylcholinesterase inhibitors. 131 43
We present a kindred with a previously undescribed combination of neuronal Charcot-Marie-Tooth disease,
ptosis
, parkinsonism, and mild dementia. The propositus, a 72-year-old man, had pes cavus, peripheral neuropathy,
ptosis
, parkinsonism, hyperreflexia, orthostatic hypotension, central hypoventilation, and mild dementia. Peripheral electrophysiologic studies showed features of an
axonal
neuropathy. The electroencephalogram showed intermittent 2 to 4 Hz activity symmetrically in the hemispheres. Several family members in 3 generations had pes cavus, neuropathy,
ptosis
, parkinsonism, and dementia although not all of the features were consistently present. Survival past the 7th decade was common. Autopsy in 2 affected members revealed the neuropathy to be
axonal
in type and showed mild to moderate loss of anterior horn cells in the spinal cord and pigmentary loss with gliosis in the substantia nigra. This is a unique, benign, autosomal dominant syndrome which shows complete penetrance, variable expression, and both central and peripheral nervous system involvement.
...
PMID:Benign autosomal dominant syndrome of neuronal Charcot-Marie-Tooth disease, ptosis, parkinsonism, and dementia. 218 81
From a retrospective review of 932 patients undergoing surgery for prolapsed lumbar intervertebral disc a group of 33 cases with acute urinary retention was studied. There was no identifiable factor which predisposed this subgroup of patients to cauda equina compression. The mean duration of bladder paralysis prior to operation was 3.6 days. Ultimately almost 79% of patients claimed full recovery of bladder function, but only 22% were left without sensory deficit in the limbs or perineum. There was no correlation between recovery and the duration of bladder paralysis before surgery, except in three patients in whom there was no sciatica and where the correct diagnosis was delayed for many days. Retention developing less than 48 h after an acute
prolapse
was associated with a poorer prognosis. Despite claims that bladder paralysis should be treated with the same urgency as an extradural haematoma, there is no evidence in this study or in the literature to support the view that emergency surgery has any bearing upon the degree of clinical recovery. The exception may be if decompression can be undertaken within 6 h, the time estimated for
axonal
ischaemia to become irreversible. This should not however engender complacency in the management of this condition, which still requires prompt treatment. Whilst any apparent delay to surgery may have medicolegal implications should the patient fail to recover completely, in the majority of cases the die is cast at the time the
prolapse
occurs.
...
PMID:Prognosis for recovery of bladder function following lumbar central disc prolapse. 239 46
The study was designed to ascertain the relationship between visual loss in the central 30 degrees of vision and the density of the relative afferent pupillary defect (APD). The APD of 26 patients was quantified using a neutral log density filter. The mean threshold light sensitivity on Humphrey automated perimetry (Program 30-1) of one eye was substracted from the fellow eye total to yield the interocular visual field difference (VFD). A direct correlation was noted such that the log density of the APD increased linearly with an increase in VFD (r = 0.69, P = 0.0001). In the absence of
ptosis
or ocular media opacification, a VFD greater than 8.7 that is not associated with an APD is suggestive of functional visual loss. Four patients had an APD despite normal static automated perimetry, indicating that an APD may be one of the earliest signs of retinal ganglion cell or
axonal
dysfunction.
...
PMID:Correlation of afferent pupillary defect with visual field loss on automated perimetry. 272 90
After injury of their axons, damaged neurons shift their metabolic activity into a reparative mode aimed at survival and regeneration or, alternatively, they undergo degeneration and die. Previous reports have shown that at the initial stages of the response to
axonal
injury, polyamines are essential for neuronal survival and can accelerate functional recovery. In this study we examined the ability of exogenous polyamines to accelerate regeneration following crush of the pre- or postganglionic sympathetic nerves of the superior cervical ganglion in adult rats. We found that early treatment with polyamines after pre- or postganglionic nerve crush, accelerated the reappearance of choline acetyltransferase activity in the superior cervical ganglion, and of [3H]norepinephrine uptake in the iris, respectively. Functional recovery from eyelid
ptosis
was also accelerated. We conclude that treatment with polyamines can enhance regeneration of peripheral sympathetic neurons.
...
PMID:Early polyamine treatment accelerates regeneration of rat sympathetic neurons. 370 40
An infant is presented with a Marfanoid phenotype and congenital contractures. In addition to this she showed severe neurological and ocular abnormalities. Cardiac insufficiency due to mitral and tricuspidal valve
prolapse
caused her death at the age of 6 months. Postmortem examination showed
axonal
pathology of the anterior horns and roots of the spinal cord, and white matter hypoplasia of the brain.
...
PMID:An infant with Marfanoid phenotype and congenital contractures associated with ocular and cardiovascular anomalies, cerebral white matter hypoplasia and spinal axonopathy. 392 77
Vitamin E malabsorption and deficiency during chronic childhood cholestasis has been associated with a progressive ataxic neurologic syndrome. Hyporeflexia, the first sign of neurologic dysfunction, may begin prior to age 2 years, but severe symptoms do not develop until age 5 to 10 years. To establish the age of onset of neuropathologic lesions, we prospectively evaluated four young children with severe cholestasis. Malabsorption and deficiency of vitamin E were documented by low serum vitamin E concentrations, low serum vitamin E to total serum lipids ratios, elevated hydrogen peroxide hemolysis, and impaired absorption of a pharmacologic dose of alpha-tocopherol. Abnormal neurologic findings in two patients were limited to areflexia,
ptosis
, mild truncal ataxia, and hypotonia; two patients had minimal signs of neurologic dysfunction. Sural nerve histology at age 6 to 25 months revealed a degenerative axonopathy involving large-caliber myelinated fibers, but without quantitative
axonal
loss. Muscle histology and histochemistry tests yielded normal results. Our study suggests that neurologic injury may occur during the first two years of life in vitamin E-deficient children with cholestatic hepatobiliary disease, obligating aggressive attempts at correcting this deficiency state at a very young age.
...
PMID:Vitamin E deficiency during chronic childhood cholestasis: presence of sural nerve lesion prior to 2 1/2 years of age. 630 96
A new inherited neuromuscular disease was identified in 4 patients (1 male, 3 females), offspring of consanguineous marriages, belonging to the same kindred. The proband was a 24-year-old female with history of
ptosis
and ophthalmoplegia since childhood and progressive intestinal pseudo-obstruction for the last 4 years of her life. A sural nerve biopsy showed
axonal
and demyelinating neuropathy. Muscle biopsies of pectoral and gastrocnemius revealed myopathic alterations with marked variation in muscle fiber size, atrophy of both fiber types and normal mitochondria. An upper gastrointestinal study showed barium in the stomach after 8 h and jejunal diverticula. Tests for absorption of fat, protein, carbohydrate, folic acid and vitamin B12 were normal. Serum levels of vitamin A and lipoproteins were also normal. The patient underwent partial gastrectomy and gastrojejunostomy. Postoperatively, she developed severe pancreatitis, sepsis, peritonitis and expired. Tissue samples from the proband and from her brother, revealed normal mucosa, but degeneration of smooth muscle of the stomach and small intestine. The myenteric plexus and vagus nerves were normal. The biochemical studies of contractile proteins (myosin, actin, tropomyosin) in the fresh and cultured smooth muscle cells of the proband obtained at the time of gastrectomy showed a 50-75% decrease in the synthesis of different contractile proteins. Turnover of contractile proteins and synthesis and turnover of collagen showed normal values. The reduction in synthesis of contractile proteins may account for the weak peristalsis and be a factor in the pathogenesis of the intestinal pseudo-obstruction.
...
PMID:Inherited ophthalmoplegia with intestinal pseudo-obstruction. 668 98
The author reports on four patients (one male, three females) from the same kindred with a newly recognized autosomal recessive condition involving striated and smooth muscle that has been designated oculogastrointestinal muscular dystrophy. It is characterized by
ptosis
, ophthalmoplegia, and progressive intestinal pseudo-obstruction leading to malnutrition and death before 30 y. Autopsy studies in two cases showed a severe primary myopathy of smooth muscles of the stomach and intestine with intact myenteric plexus and vagus nerves. The proposita notably had myopathic changes of striated muscles but also involvement of the peripheral nerves and central nervous system characterized by demyelinating and
axonal
neuropathy and focal spongiform degeneration of the posterior columns.
...
PMID:Oculogastrointestinal muscular dystrophy. 685 10
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