Congenital diaphragmatic hernia; masquarding as hydropneumothorax

Congenital diaphragmatic hernia occurs in about 1 in 3000 births among which over 90% of the patients will be diagnosed either antenatally or will present with respiratory distress in the first few hours of life and about 5% to 30% of diaphragmatic hernias present beyond the neonatal period. The extent of herniation of abdominal viscera into the thorax may vary, leading to acute or intermittent symptoms. The inappropriate insertion of a chest drain, although relieving the symptoms temporarily, may result in serious consequences by damaging intrathoracic abdominal viscera. Journal of College of Medical Sciences-Nepal, 2013, Vol-9, No-3, 54-56 DOI:&nbsp;http://dx.doi.org/10.3126/jcmsn.v9i3.10223 &nbsp;&nbsp;</p

Age-Dependent Properties of Acid & Alkaline DNases in Chick Brain

Acid and alkaline DNase activities in partially purified preparations from young and old chick brain were measured. The specific activity of acid DNase from old brain was lower by about 50% than that of enzyme from young brain , whereas alkaline DNase exhibited only marginal difference in activity of the two preparations . Study of various properties, viz. heat-stability and effect of exogenous compounds like Mg=', Hgl', Zn=', PHM B , on these enzymes revealed that while acid DNase in old brain is more susceptible to heat and heavy metal ion inhibition , alkaline DNase is devoid of any age-dependent variation in its properties