Radiographic identification of age and gender from the degree and pattern of calcification of the costal cartilages

Accurate diagnosis of human age and gender has always been a problem for forensic scientists. This study aimed at the determination of the gender and approximate age using a simple, inexpensive and readily available technique, which requires little expertise, by utilizing radiological-determined pattern and degree of calcification of the costal cartilages. The study comprised [50] cases of both genders; their ages ranged from [15] to [80] years. The chest plate comprised of the sternum, costal cartilage and the last [2] cms of ribs, were exposed to radiological examination. The central and mixed patterns of calcification at the costochondral junction were characteristic and definitely identified female gender; while the peripheral pattern occurred in both genders, but was more in male gender. Independent of gender, there was a statistically significant association between age and degree of calcification. Degrees of calcification, which equal [2.5] up to [4], identify a male as having an age > 40 years. Linear regression equations were used to calculate age from the degree of calcification at the costochondral junction with low to moderate accuracy

Acute toxicity of some organic solvents in albino rats

In a trial to verify the cause of Volatile Solvent Abuse [VSA] the acute toxicity of some commonly abused organic solvents were studied in albino rats exposed to the LD 50 of either acetone, toluene or xylene. Blood lipids and histopathological changes were studied in both dead and lwing animals. Electro-Cardiographic tracing was done to the control and survived intoxicated rats. The results obtained suggested profound hyperlipemia, structural damage and myocardial disturbances. Strict legislative measures are recommended