biotin is a water-soluble vitamin and co-factor for activation of carboxylases apoenzymes. biotinidase enzyme is essential for release of biotin from apoenzymes. absence of biotinidase is an autosomal recessive trait with a prevalence of 1 in 60000. clinical manifestations of biotinidase deficiency include dermatitis, alopecia, seizures, hypotonia, developmental delay, hearing loss, visual impa...

background: patients with gastroesophageal reflux disease (gerd) unresponsive to proton pump inhibitor (ppi) therapy are often labeled as having refractory gerd. one of the probable etiologies of refractory gerd is delayed gastric emptying. refractory gerd associated with gastroparesis is a complex condition with no definitive treatment to date. we opted, for the first time, to test the hypothe...

treatment of severe immune thrombocytopenic purpura (itp) accompanied by life-threatening bleeding events is challenging and a combination of treatment measures should be undertaken to rapidly increase the platelet count. herein, we report a case of severe itp in a seven-year-old boy who suffered from massive bleeding which was totally unresponsive to conventional therapeutic interventions. sin...

Intense activation of neurons triggers the appearance of immediate expression genes, including c-Fos. This gene is related to various signal cascades involved in biochemical processes such as neuronal plasticity, cell growth and mitosis. Here we investigate the expression pattern and the refractory period of c-Fos in rats and monkey's brains after stimulation with pentylenetetrazol. Rats and mo...

background: the induction chemotherapy regimen for acute myeloid leukemia has evolved as once induction is completed patients progress through the consolidation phase and achieve remission in 76% of cases. for patients with relapsed or refractory disease, alternative chemotherapy agents are available. monoclonal antibody therapy with biological agents, such as the immunotoxin gemtuzumab ozogami...

objective: the aim of this study was to evaluate the effect of premenstrual syndrome (pms) treatment with selective serotonin reuptake inhibitor (ssri) on treatment response of refractory hypertension of the patients. method: this was a triple-blind randomized clinical trial conducted on female patients suffering from refractory hypertension and pms at the same time. we obtained informed consen...

purpose: to determine the outcomes of visual correction with femto-lasik following pk. methods: in this prospective study, 34 eyes of 31 patient who had undergone thin – flap lasik due to high refractive error after corneal grafting were evaluated .after complete ocular examination and assessment of uncorrected and corrected distant visual acuity (ucva and bcva) , the patients underwent femto-l...

Magnetic Resonance Imaging (MRI) is the method of choice to search for epileptogenic lesions. We correlated MRI findings with the epileptogenic zone (EZ) depicted by clinical and electroencephalographic (EEG) data. We studied 400 clinical records of patients who had been submitted to MRI studies and we analyzed, retrospectively, their ictal semiology, EEG characteristics and response to treatme...