https://www.selleckchem.com/ Peripheral blood mononuclear cells (PBMCs), commonly referred to as lymphocytes and monocytes, representing cells of the innate and adaptive immune systems. To find out whether changes in PBMCs' mRNA expression of pattern recognition receptors (PRRs) are associated with puerperal metritis in Holstein cows. Peripheral blood mononuclear cells were collected from 20 cows with puerperal metritis and 20 cows without metritis at 10 days postpartum. Expression of toll-like receptors 2 and 4 ( and ), and cluster of differentiation 14 ( ) genes were assessed in PBMCs using a quantitative real time-polymerase chain reaction (qRT-PCR) technique. The data was normalized to glyceraldehyde-3-phosphate dehydrogenase ( ) as a reference gene, and 2 methodology was used for relative quantification. The results of the present study demonstrated that the expression of (P=0.04) and (P=0.008) was significantly greater in cows with puerperal metritis compared to the control group. However, the expression of (P=0.06) was not significantly different between cows with puerperal metritis and healthy cows. This study suggests that puerperal metritis significantly increases the expression of and genes in the PBMCs which contributes to the proper stimulation of inflammation and uterine clearance of bacteria soon after calving. This study suggests that puerperal metritis significantly increases the expression of TLR4 and CD14 genes in the PBMCs which contributes to the proper stimulation of inflammation and uterine clearance of bacteria soon after calving. Research has demonstrated that certain nutrients can reverse infertility. The present study, "Impact of Omega-3 fatty acids preconception intake on some fertility parameters of female rats and foetuses quality" was conducted to further investigate this subject. Subjects were thirty-four female and twelve male adult Albino rats, weighing 172-181 g. Initially, 12 male rats were assigned to treatment groups 1, 2, 3, an