Histological evaluation of sheep ovarian tissue after laparoscopic partial ovariectomy.

In the present study, there was assessment of the damage to tissue caused by partial laparoscopic ovariectomy using bipolar forceps in sheep. Fragments of ovaries of six sheep were removed using bipolar forceps by making a transverse section in the middle third of the organ via three-portals that were made using laparoscopy. The fragments were subjected to standard histological examinations and the lesions attributed to the procedure were investigated using an optical microscope and Image J software. The results were assessed using an analysis of variance and the Tukey test. All the laminae had minimal tissue damage. The mean amount of highly damaged tissue was 1.8%, and of partially damaged tissue was 5.6%. The mean total area of healthy tissue in the fragments was 94.4%. The results of the study indicate this procedure can be conducted withvery little tissue damage occurring. The use of this procedure, therefore, can be incorporated in future reproductive studies without altering the functions of the in situ ovarian tissues.

Synthesis, characterization, and cytotoxic activity of novel platinum (II) complexes derived from n-benzyl-ethylenediamine and oxalate.

This work describes the synthesis and characterization of three novel complexes derived from N-benzyl-ethylenediamine and oxalate. Precursor compounds were synthesized by reacting N-benzyl-ethylenediamine with K(2)PtCl(4). Subsequent substitution of chlorides by oxalate led to the final products. Elemental analysis and the infrared, (1)H, (13)C, and (195)Pt NMR spectra of these complexes were provided. The cytotoxic activities were investigated against human non-small cell lung carcinoma (A(549)), mouse non-metastatic cell skin melanoma (B16-F1), mouse metastatic cell skin melanoma (B16-F10), human cell breast adenocarcinoma (MDA-MB-231) and normal cell lines such as baby hamster cell kidney (BHK-21), hamster cell ovary (CHO) and compared to cisplatin and carboplatin under the same experimental conditions. The presence of oxalate as a leaving group conferred an interesting cytotoxicity profile to the complexes in the tested cell lines.