部分市售植物性食物中α-胡萝卜素和β-胡萝卜素含量分析

目的测定和评估市场上常见的消费量较高的植物性食物中α-胡萝卜素和β-胡萝卜素的含量。方法采用高效液相色谱-C30色谱柱分离食物中α-胡萝卜素和β-胡萝卜素并进行定量测定,计算总胡萝卜素、视黄醇当量(RE)、视黄醇活性当量(RAE)。结果测定了135种植物性食物中α-胡萝卜素和β-胡萝卜素的含量。根据含量水平分为Ⅰ类(非常高含量组)食物、Ⅱ类(高含量组)食物、Ⅲ类(中含量组)食物和Ⅳ类(低含量组)食物,其中I组α-胡萝卜素比例最高(14.2%)。不区分α、β-胡萝卜素,直接采用总胡萝卜素评估RE会造成评估结果的高估,其中I组高估程度最高(10.5%)。结论胡萝卜素主要存在于胡萝卜、绿色叶类蔬菜和水果中,以β-胡萝卜素为主,胡萝卜和红苋菜等是α-胡萝卜素的主要来源。将食物中α-胡萝卜素进行有效区分,可为视黄醇当量的准确计算提供数据基础。[营养学报,2019,41(2):193-197,203]     

青少年高血压与微量元素关系的探讨

目的：研究青少年高血压与微量元素的关系。方法：对40例高血压及40例血压正常的青少年进行了血微量元素测试分析。结果：高血压的青少年镜和钙含量明显高于正常儿童（P＜0.05），铁则低于血压正常的青少年（P＜0.05）。结论：适当地减少动物性食物，增加植物性食物及含铁丰富的食物的摄入，将有益于青少年高血压的预防。     

植物性胃石的影像学诊断（附20例报道）

胃石按成份分为植物性胃石，动物性胃石，药物性胃石，混合性胃石。临床以植物性胃石多见，尤以柿石，山植石最常见。现将我院近5年来20例植物性胃石患者报道如下：     

多酚类物质在治疗炎性肠病中的作用

多酚类物质富含于植物性食物及饮料中，目前虽未发现缺乏多酚类物质会引起何种不良反应，但大量摄入具有明显的抗炎和肠组织保护作用。最近以色列学者报告了他们研究4种多酚类物质的结果，这4种多酚类物质都被证实有抗炎作用，它们分别是：resveratrol（白藜芦醇）、epigallocatechin gallate（表儿茶素酸盐）、curcumin（姜黄）、quercetin（槲黄素）。     

眼眶与颅,副鼻窦联合植物性异物的诊断及处理

报道眶内和眶颅、眶副鼻窦联合植物性异物８例，以芦根为主，存留时间４个月到８年。异物部位：眶内２例，筛颌窦２例，硬脑膜１例，中颅凹２例，蝶窦１例。确诊方法以ＣＴ为主。均以手术出异物而治愈。     

颌面部植物性异物：附10例报告

口腔颌面部损伤可致异物存留。在临床上常见的异物为金属异物和非金属异物两大类。导致异物存留的原因与年龄、性别、职业,甚至与爱好习惯有一定的关系。口腔颌面部外伤后植物性异物的存留,多见于儿童,因儿童爱玩树枝、木棍或爬树不慎摔跤戳伤致异物存留。对这类异物的诊断,X 线片诊断难以发现异物,     

植物性胃石症12例X线分析

我院位于沂蒙山区，为柿子、山楂的盛产地。因服食柿子、山楂而引发的植物性胃石症时有发生，成为消化道疾患中常见病。现将近年来我院收集的12例植物性胃石症病例报告分析如下：     

Sympathetic skin response in patients with myasthenia gravis★ A comparative analysis

BACKGROUND: The examination of sympathetic skin response is an important index for assessing the autonomic nerve function, and patients with myasthenia gravis are always accompanied by dysautonomia. Therefore, it will be important to know whether sympathetic skin response can be used as the index for the clinical evaluation of myasthenia gravis. OBJECTIVE: To investigate the diagnostic value of sympathetic skin response in the damage of autonomic nerve function of patients with myasthenia gravis. DESIGN: A case-controlled comparative observation. SETTING: Department of Neurology and Room of Nerve Electromyogram, the Affiliated Hospital of North Sichuan Medical College. PARTICIPANTS: Thirty outpatients or inpatients with myasthenia gravis were selected from the Department of Neurology, the Affiliated Hospital of North Sichuan Medical College from May 2006 to May 2007, including 9 males and 21 females, aged 8–72 years with a mean age of (28±5) years old. They were all accorded with the diagnostic standards of myasthenia gravis, accompanied by different severity of autonomic nerve symptoms, including poor skin nutrition, sweating of hands and feet, pyknocardia, persistent hypotension, abdominal pain, constipation, etc. They all had not taken any drug affecting the autonomic nerve function before the examination. Informed consents were obtained from all the patients. Meanwhile, 30 healthy physical examinees were enrolled as the normal control group, including 10 males and 20 females, aged 10–75 years with a mean age of (31±5) years old. Approval was obtained from the hospital ethic committee. METHODS: After admission, the patients were examined with sympathetic skin response using DANTEC keypoint 2.0 electromyography evoked potential apparatus (Danmark). The changes of the latency and wave amplitude of sympathetic skin response were observed. The subjects in the normal control group were examined with the same methods at physical examination. Abnormality was judged by the disappearance of wave form, latency longer than that in the normal control group by Mean±2.5SD, or wave amplitude lower than the average value in the normal control group by 50%. MAIN OUTCOME MEASURES: The results of the latency and wave amplitude of sympathetic skin response were compared between the patients with myasthenia gravis and normal controls. RESULTS: All the 30 patients with myasthenia gravis and 30 healthy physical examinees were involved in the final analysis of results. There were no significant differences between the left and right upper and lower limbs in both the myasthenia gravis group and normal control group (P > 0.05). In the myasthenia gravis group, the abnormal rate of sympathetic skin response was 37% (11/30), the latency was prolonged and the wave amplitude was decreased as compared with those in the normal control group, and there were significant differences (P < 0.01). CONCLUSION: Sympathetic skin response can be used as an electrophysiological index for judging the damages of autonomic nerve function in patients with myasthenia gravis.     

小儿植物性胃结石的诊治体会

目的总结小儿植物性胃结石的临床特点、探讨胃结石的治疗方法。方法对近8年来收治的10例小儿植物性胃结石进行回顾性分析。结果本组10例，全部治愈。保守治疗9例，剖腹手术取石1例。结论小儿植物性胃结石是由于空腹进食黑枣、柿子等引起，有其特点，经积极治疗均可治愈。首选保守治疗。