Assessment of reproductive toxicity of gold nanoparticles and its reversibility in male albino rats.

Unlabelled: Nanotechnology has become a trending area in science all over the world. Although gold nanoparticles (AuNPs) have been utilized widely in biomedical fields, potential toxicities may arise from their interactions with biological systems. The current study aimed at evaluating the toxic effects of AuNPs on the reproductive system of adult male albino rats and assessing the recovery probability.

Assessment of genotoxicity of silver nanoparticles on lymphocyte cells of albino rats using comet assay.

Silver nanoparticles, "AgNPs", represent a prominent nanoproduct, but most of the previous toxicity studies on its genotoxicity are still limited. The current study aimed to assess the genotoxicity of AgNPs on lymphocyte cells using comet assay and to study the recovery probability. It was conducted on 50 adult male albino rats divided into "Control group", 10 rats were injected intraperitoneal, "IP", with distilled water for 28 days, and "Test groups", 40 rats were injected "IP" with 13 ± 3 nm AgNPs for 28 days, subdivided into group I: 10 rats were injected with 2 mg/kg AgNPs, group Ia: 10 rats were injected with 2 mg/kg AgNPs and left for another 4 weeks without scarification, group II: 10 rats were injected with 4 mg/kg AgNPs, and group IIa: 10 rats were injected with 4 mg/kg and left for another 4 weeks without scarification.

Sex determination by the length of metacarpals and phalanges: X-ray study on Egyptian population.

Measurements of hand bones length have been shown to be sexually dimorphic in many nationalities. The aim of this study is to assess the accuracy of sex determination from the length of all metacarpals and phalanges of right and left hands using X-ray radiographs and to develop a discriminant formula that can be used in the Egyptians. One hundred Egyptians are included in the study (50 adult males and 50 adult females) in the period from December 2009 to January 2011 with mean age 31.

Prognostic significance of three hepatitis markers (p53 antibodies, vascular endothelial growth factors and alpha fetoprotein) in patients with hepatocellular carcinoma.

Background/aim: Hepatocellular carcinoma (HCC) is the third most common cause of cancer death in the world. Of patients with HCC, the diagnostic capacity of Alpha Fetoprotein (AFP) depends on its elevation in the serum. Concentration of AFP greater than the upper reference limit indicate the presence of HCC, but values below this level are less useful because they may also occur in chronic liver disease.