The causes of ischaemic stroke in young adults are many and diverse. Such patients usually require more extensive investigations in order to find an underlying cause than more elderly patients. It is important that a comprehensive search is made since many of the underlying disorders are treatable. Principal causes are extracranial arterial dissection, cardioembolism, premature atherosclerosis,...

hypoparathyroidism as the first manifestation of kearns-sayre syndrome: a case report   how to cite this article: ashrafzadeh f, ghaemi n, akhondian j, beiraghi toosi m, elmi s. hypoparathyroidism as the first manifestation of kearns-sayre syndrome: a case report. iran j child neurol. 2013 autumn;7(4):53-57.     objective kearns-sayre syndrome is a mitochondrial myopathy, which was first descri...

Metabolic control analysis has often been used for quantitative studies of the regulation of mitochondrial oxidative phosphorylations (OXPHOS). The main contribution of this work has been to show that the control of mitochondrial metabolic fluxes can be shared among several steps of the oxidative phosphorylation process, and that this distribution can vary according to the steady state and the ...

S b es itochondrial diseases are a heterogeneous group of energy metabolism disorders hat can affect almost any organ. Kidney disease s well-known in patients with mitochondrial isorders, most commonly manifesting as proxial tubulopathy with chronic tubular acidosis, ypically a minor feature in pediatric patients ith severe involvement of brain, liver, heart, or ther organs. Other renal present...

Autistic spectrum disorders (ASD) are common neurobehavioral syndromes characterized by deficits in social interactions, impaired communication skills and repetitive stereotypic behaviours expressed by 3 years of age (1). Recent studies of these disorders indicate a strong genetic component but specific aetiologies and pathogeneses are usually unknown (1–3). Concordance for ASD is 90% in identi...

A simple test is described for identifying patients with abnormalities of muscle energy metabolism secondary to mitochondrial dysfunction, based on the venous lactate response to exercise at 90% of predicted work rate at the anaerobic threshold. The test was standardised for age, weight and sex of subjects, and was abnormal in all cases of mitochondrial cytopathy tested, with a false positive r...