Objective To understand the cognitive status of urology medical staff about hematuria color.Methods The self-designed questionnaire about color cognition was adopted,and the concentration of hematuria samples were determined.The investigation was carried out in 50 health care workers about their cognition of hematuria color.Results The study found that there were differences in color perception between doctors and nurses,doctors and nurses with different titles,doctors and the standard sample,nurses and the standard sample.Conclusions There are differences in judgment and description of the urine sample color in medical personnel,they are more attempted to judge by virtue of work experience and subjective consciousness.Due to the lack of a uniform and objective standards,the medical staff can not accurately and objectively describe the development of patients' condition,thus patients' recovery was affected.Therefore,a unified objective criteria for clinical reference norms of hematuria should be developed as soon as possible to ensure that patients recover quickly and safely.

OBJECTIVE: To investigate the involvement of ephrinB2 in periodontal tissue remodeling in compression areas during orthodontic tooth movement and the effects of compressive force on EphB4 and ephrinB2 expression in osteoblasts and osteoclasts. METHODS: A rat model of experimental tooth movement was established to examine the histological changes and the localization of ephrinB2 in compressed periodontal tissues during experimental tooth movement. RAW264.7 cells and ST2 cells, used as precursor cells of osteoclasts and osteoblasts, respectively, were subjected to compressive force in vitro. The gene expression of EphB4 and ephrinB2, as well as bone-associated factors including Runx2, Sp7, NFATc1, and calcitonin receptor, were examined by quantitative real-time polymerase chain reaction (PCR). RESULTS: Histological examination of the compression areas of alveolar bone from experimental rats showed that osteoclastogenic activities were promoted while osteogenic activities were inhibited. Immunohistochemistry revealed that ephrinB2 was strongly expressed in osteoclasts in these areas. Quantitative real-time PCR showed that mRNA levels of NFATc1, calcitonin receptor, and ephrinB2 were increased significantly in compressed RAW264.7 cells, and the expression of ephrinB2, EphB4, Sp7, and Runx2 was decreased significantly in compressed ST2 cells. CONCLUSIONS: Our results indicate that compressive force can regulate EphB4 and ephrinB2 expression in osteoblasts and osteoclasts, which might contribute to alveolar bone resorption in compression areas during orthodontic tooth movement.
Animals ; Bone Resorption* ; Gene Expression ; Immunohistochemistry ; Models, Animal ; Osteoblasts* ; Osteoclasts* ; Rats ; Real-Time Polymerase Chain Reaction ; Receptors, Calcitonin ; RNA, Messenger ; Tooth Movement*