introduction: formalin injection induces nociceptive bahaviour in phase i and ii, with a quiescent phase between them. while active inhibitory mechanisms are proposed to be responsible for initiation of interphase, the exact mechanisms which lead to termination of nociceptive response in phase ii are not clear yet. phase ii is a consequence of peripheral and central sensitization processes, whi...

results there was a significant increase (p < 0.05) in leptin levels on day 14 (12.75 + 5.8 ng/ml) and day 21 (12.91 + 3.2 ng/ml) for age group 18-30 years compared to day 14 (11.60 + 3.2 ng/ml) and day 21 (11.60 + 3.2 ng/ml) for age group 31-40 years. leptin was positively correlated with fsh on day 14, with lh on day 7 and day 21; likewise, with progesterone on day 21 and day 28 and with estr...