The need for valproic acid as prophylaxis in neurosurgery patients.

Using anti-epileptic drugs in neurosurgery patients is a routine practice. This controlled trial aimed to assess whether prophylaxis with Valproate in brain surgery patients is justified or not. Group A (n=50; controls) patients received valproic acid postoperatively for three months, while group B (n=50; subjects) received a placebo. Serum valproic acid levels between 50-125g/ml were required. Kendall's Tau was applied to see the correlation between the 'frequency of seizures' between different surgical procedures performed and the extent of manipulations-EOMs. A wireless EMOTIV EPOC device was used to visualize the Electroencephalogram patterns. In controls, 12 patients had one seizure and only two patients had 2 seizures. In the placebo group, 13 patients had one and 4 patients had 2 seizures. The seizure frequency was highest amongst brain tumor patients. An insignificant difference was found between the seizure frequencies of the placebo and control groups. A statistically insignificant correlation was found between seizure frequency and independent variables: surgical procedures and EOM (%). Using an AED or not, the frequency of seizures did not substantially reduce over the postoperative period. If not necessary, the anti-epileptic medication that is frequently provided as a prophylactic against seizures in the post-operative period should not be administered.

Mutations of the human interferon alpha-2b (hIFN-α2b) gene in occupationally protracted low dose radiation exposed personnel.

Ionizing radiations impact human tissues by affecting the DNA bases which constitute genes. Human interferon alpha 2b gene synthesizes a protein which is an important anticancerous, immunomodulatory, anti-proliferative and antiviral protein. This study was aimed to identify interferon alpha-2b mutations as a consequence of the use of occupational chronic low dose radiation by hospital radiation exposed workers. A molecular analysis was done in which DNAs were extracted from blood samples from radiology, radiotherapy and nuclear medicine workers. The gene was amplified through polymerase chain reaction and further genetic data from sequencing results analyzed by bioinformatics tools in order to determine as to how mutations in interferon alpha 2b sequences will lead to changes in human interferon alpha-2b protein. A total of 41% gene mutations was detected among all radiation exposed workers in which higher percentage (5.4%) of base insertion mutations and 14% frameshift mutations were found in radiology workers. The chronic use of low dose of radiations by occupational workers has a significant correlation with mutational effects on interferon alpha 2b gene, further evident by depressed interferon alpha levels in serum. This can lead to depressed immunity in radiation exposed workers. Hematological profiling of this group also showed hyperimmune response in the form of lymphocytosis.