Fimbriae (common pili) and flagella on the surface of bacterial cells. Left: dividing Shigella enclosed in fimbriae. The structures are probably involved in the bacterium's ability to adhere to the intestinal surface. Right: dividing pair of Salmonella displaying both its peritrichous flagella and its fimbriae.
Relaxin's peak is reached during the 14 weeks of the first trimester and at delivery. It is known to mediate the hemodynamic changes that occur during pregnancy, such as increased cardiac output, increased renal blood flow, and increased arterial compliance.
General Information. The WITNESSÂ® RELAXIN kit is intended to determine pregnancy in the bitch or queen by measuring relaxin levels in plasma and serum samples. The presence of significant amounts of this hormone is a reliable indicator of pregnancy. A sudden decrease in relaxin may indicate that abortion has occurred.