Screening for cardiovascular risk factors in a dental setting

BACKGROUND: The authors assessed the utilization of oral health care professionals (OHCPs) as a resource for identifying patients who were unaware of their increased risk of developing cardiovascular disease (CVD). METHODS: OHCPs administered a CVD risk-screening questionnaire, measured blood pressure and tested cholesterol levels, high-density lipoprotein levels and hemoglobin A1c (HgA1c) levels using "finger-stick" blood testing in 100 patients treated in a dental school clinic who were unaware of their CVD risk status. The authors determined the prevalence of specific risk factors (that is, smoking and abnormal levels of systolic blood pressure, lipids, body mass index and HgA1c) and calculated Framingham 10-year coronary heart disease (CHD) risk scores. RESULTS: Seventeen percent of the 100 patients (35 percent of men, 5 percent of women) had an increased global risk of experiencing a CHD event within 10 years (Framingham risk score>10 percent). Seventy-three percent of participants had one or more risk factors and 31 percent had two or more risk factors present. More men than women had low levels of high-density lipoprotein (45 percent [18/40] of men versus 3.3 percent [2/60] of women; P<.0001). The mean Framingham CHD risk score increased with increasing risk factor burden. CONCLUSIONS: OHCPs identified patients with an increased CHD risk who could benefit from primary prevention activities. A substantial proportion of study patients who were unaware of their risk status were at an increased risk of experiencing a CHD event within 10 years. OHCPs could contribute to public health CHD control efforts.     

128例眶-上颌骨-颧骨复合骨折的临床分析

目的：讨论眶-上颌骨-颧骨（orbital maxillary zygoma,OMZ）复合骨折的特点,以及治疗方法的选择,总结影响OMZ骨折疗效的因素。方法：对华西口腔医院1989年以来收治的128例OMZ骨折进行临床回顾性研究。结果：128例眶-上颌骨-颧骨复合性骨折中,25.8%伴有眶部并发症,对症处理后症状大多消失,8例复视患者眶底或眶周行自体骨整复或Medicon种植体整复,症状消失。83例采用微型夹板坚强内固定,其中4例采用可吸收小夹板。11例陈旧性骨折采用正颌外科技术恢复其面形及咬功能。结论：OMZ骨折应早期复位、坚强内固定,恰当的软组织处理等是影响治疗效果的主要因素。     

Dynamic vascular changes in free skin grafts

Vascular changes in full-thickness skin grafts in rats were examined at various intervals after grafting using microangiography. The grafted skin and its bed showed dynamic vascular changes that were considered to be related to release of an " angiogenetic factor" produced by the skin under oxygen-deficient conditions such as ischemia. The first filling of contrast medium in the grafts was observed 24 hours after grafting. Both primary and secondary revascularization were observed.     

中药炮制对中药化学成分的影响

目的:探讨与分析中药炮制对中药化学成分的影响。方法:中药材中含有的常见化学成分,例如生物碱、苷类、挥发油等物质。针对这些物质在炮制过程中,由于发生水解、氧化、异构化等化学反应,导致含量增加或减少,以及发生变性等情况对药材产生的影响加以汇总并进行分析,进而研究和探讨中药炮制的意义,为制定和选择合理有效的炮制工艺提供依据。结果:炮制过程中由于炮制方法不同,会导致中药材中化学成分的含量及理化性质发生不同的变化,从而使药物性味、功能、功效改变而发挥不同的作用。结论:选择合理、适宜的炮制方法,可以有效的提高中药的功效,降低毒副作用,保证用药安全。