Warnings. 1  Don't become obsessed with security. 2  Even the most solid lock system is worthless if the frame around the door is weak. 3  If you're not used to locking your doors and you have a door that you can lock without a key, take care to remember your keys whenever you leave the house.
Bacteria that cause urinary tract infections invade bladder cells. Scientists at Washington University School of Medicine in St. Louis have found definitive proof that some of the bacteria that plague women with urinary tract infections (UTIs) are entrenched inside human bladder cells. The finding confirms a controversial revision of scientistsâ model of how bacteria cause UTIs. Previously, most researchers assumed that the bacteria responsible for infections get into the bladder but do not invade the individual cells that line the interior of the bladder.
Although the molecular details in the uptake mechanism differ among intracellular bacteria, the first event following the specific interaction between the bacterial cell and the host cell is always the formation of a primary phagosome.ll of the bacteria possessing the ability to escape from the phagocytic vacuole described above will efficiently replicate in the host cell cytosol, regardless of whether the host cells are phagocytes or non-phagocytic cells.