Serum, zinc and copper levels in children with protein energy malnutrition.

Serum zinc and copper were measured by atomic absorption spectrophotometry in 58 children (3 months-5 years); of these, 46 children had protein energy malnutrition (PEM), and 12 children served as controls. The levels of serum zinc and copper were found to be significantly low in children with severe malnutrition (grades III and IV PEM). There was a significant positive correlation between serum zinc and height-for-age (r = 0.8809, p < 0.001). Serum copper was found low only in children exhibiting marked linear growth retardation (height-for-age < 85% of the normal). Hypoalbuminemia (serum albumin < 2.5 g/dl), and anemia (hemoglobin < or = 8.0 g/dl) in malnourished children were associated with significant decline in serum zinc and copper levels, respectively.

Biochemical abnormalities in neonatal seizures.

Early diagnosis and appropriate treatment of biochemical abnormalities accompanying neonatal seizures is important for effective seizure control and to avoid further brain damage. The present study was carried out on 35 neonates to determine the frequency of various biochemical abnormalities in neonatal seizures. Diagnostic evaluation included estimation of levels of serum calcium, phosphorus, magnesium, sodium, potassium, zinc, and blood glucose. Two-thirds of the neonates with seizures had biochemical disturbances in their sera. A variety of abnormalities occurred in asphyxiated infants, including hyponatremia, hypoglycemia, hypocalcemia, and hypomagnesemia. Primary metabolic disorders accounted for one-forth of the cases of neonatal seizures, the most common being hypoglycemia, hypoglycemia/hypocalcemia, and hypocalcemia/hyperphosphatemia. Inappropriate intrauterine growth, inadequate feeding, and feeding with cow's milk were the main risk factors for primary metabolic seizures. Hyponatremia was a frequent finding in seizures resulting from brain damage like birth asphyxia, meningitis, and intracranial hemorrhage. No infant had hypernatremia, hyperkalemia, hypokalemia, or low serum zinc.

Serum and urinary copper in acute hepatic encephalopathy.

Serum and 24 hours' urinary copper levels were studied in 71 patients with acute viral hepatitis including 35 with encephalopathy. Thirty age and sex matched healthy controls were also studied. Copper estimation was done by atomic absorption spectrophotometry. Serum and 24 hours' urinary copper levels (164.85 +/- 29.31 micrograms/dl and 123.54 +/- 7.87 micrograms/24 h respectively) were significantly (P less than 0.001) increased in acute viral hepatitis patients. There was no significant difference in levels between patients with and without encephalopathy.