Introduction: The role of ovarian hormones and nitric oxide (NO) in learning and memory and their interaction has been widely investigated. The present study carried out to evaluate different effect of L-NAME on spatial learning and memory of ovariectomized (OVX) and sham operated rats. Methods: 32 rats were divided into 4 groups: 1) Sham 2) OVX 3) Sham-LN and 4) OVX-LN. The animals of groups 3...

Lead, heavy metal, has been associated with various health disorders including respiratory, digestive, nervous and reproductive systems. Male are rising worldwide in parallel to increased exposure harmful chemicals through anthropogenic sources. The aim of this study was find the effect lead nitrate on sperm quality, serum testosterone level testicular histopathology male Swiss albino mice. mic...

We consider the set Ln of n-letters long Lyndon words on the alphabet A = {0, 1}. For a random uniform element Ln of the set Ln, the binary tree L(Ln) obtained by successive standard factorization of Ln and of the factors produced by these factorization is the Lyndon tree of Ln. We prove that the height Hn of L(Ln) satisfies

Patients with chronic renal failure are known to have renal osteodystrophy (bone disease) and increased calcification of vessels. A new marker of bone disease, sclerostin, the two pro-inflammatory cytokines tumour necrosis factor-alpha (TNF-alpha) and interleukin-18 (IL-18), and the fibroblast growth factor-23 (FGF-23) receptor-associated marker Klotho were tested in 84 haemodialysis (HD) patie...

Laser photoionization and ligand photodissociation in Ln(thd)(3) (Ln = Eu, Tb, Gd; thd = 2,2,6,6-tetramethyl-3,5-heptanedionato) are studied in a molecular beam via time-of-flight mass spectrometry. The fragmentation patterns are strongly wavelength dependent. With 355 nm excitation, the mass spectrum is dominated by Ln(2+), Ln(+), and LnO(+) fragments. The bare Ln ions are believed to arise fr...

OBJECTIVE To analyze patterns of central lymph node (LN) metastasis to specific compartments in the neck and predictive factors of contralateral paratracheal LN metastasis in patients who underwent prophylactic bilateral central LN dissection for papillary thyroid cancer (PTC). STUDY DESIGN Prospective study. SETTING Multitertiary centers. SUBJECTS AND METHODS One hundred forty consecutiv...