NEUTROPHILS AND PERIODONTITIS IN DIABETES

这个子项目是许多研究子项目中利用 资源由NIH/NCRR资助的中心拨款提供。子项目和 调查员(PI)可能从NIH的另一个来源获得了主要资金， 并因此可以在其他清晰的条目中表示。列出的机构是 该中心不一定是调查人员的机构。 在这项研究中，具体地说，我们将阐明糖尿病中某些细胞“加重(启动)”的确切生化机制，并确定当患者得到血糖(血糖)控制和/或牙周病治疗时，这些变化是否被预防。 在整个5年的研究中，大约250名糖尿病患者将被纳入研究。在提供同意后，研究人员将采访受试者，以收集有关人口统计数据、教育年限、就业史和体力活动的详细信息。如果受试者符合所有的医学和牙科纳入标准，他/她将接受基线牙科检查，以分类牙周病的存在和程度。检查还将包括新的牙科X光检查，除非最近的胶片(6个月内)可用。口腔检查将由研究牙周科医生进行。患者将接受全口牙齿清洁，以补偿他们在同一次就诊中的参与。他们会被转介到适当的牙齿清洁，在任何牙科治疗是必要的。 中性粒细胞和内毒素将从血液样本中分离出来，并用于确定中性粒细胞的反应性和巨噬细胞的刺激作用。没有糖尿病的对照受试者将被登记采集血液样本，以与糖尿病患者的样本进行比较。通常，对于每个糖尿病血液样本，需要一个对照血液样本来比较结果。因此，大约250名糖尿病患者和250名非糖尿病患者将参加这项研究。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. In this study, Specifically, we will elucidate the exact biochemical mechanisms responsible for the "aggravating (priming)" of certain cells in diabetes and determine if these alterations are prevented when the patients are brought under glycemic (blood sugar) control and/or treated for gum disease. Approximately 250 diabetic patients will be enrolled during the entire 5 year study. After providing consent, subjects will be interviewed by study personnel to collect detailed information about demographics, years of education, employment history, and physical activity. If a subject meets all the medical and dental inclusion criteria, he/she will undergo a baseline dental examination to categorize the presence and extent gum disease. The examination will also include new dental x-rays, unless recent films (within 6 months) are available. The oral examination will be performed by the study periodontists. The patients will be given a full mouth dental cleaning to compensate their participation at the same visit. They will be referred to the appropriate dental cleaning in any dental treatment is necessary. Neutrophils and LPS will be isolated from the blood sample and used in experiments to determine neutrophil responsiveness and macrophage stimulation. Control subjects without diabetes will be enrolled to take blood sample to be compared to the sample of diabetics. Usually for each of the diabetic blood sample, a control blood sample is needed to compare the results. Therefore, approximately 250 subjects with diabetes and 250 subjects without diabetes will be enrolled in the study.