Epidemiological survey of allergic diseases in first-year junior high school students in Wakayama Prefecture in 2003

Allergic diseases have been increasing in prevalence in developed countries, including Japan. The aim of the present report was to determine the prevalence of allergies in Wakayama prefecture using an epidemiological study. In total, 759 first-year students attending junior high school in Hidaka country, Wakayama prefecture, were surveyed. The results for 699 cases were then analyzed. A questionnaire regarding allergic diseases, specific IgE measurements performed using a MAST26 system (Hitachi Co., Ltd.), and total serum IgE levels measured using RIST (Pharmacia Co., Ltd.) were performed. The prevalence (present + past) of various allergic diseases was 37.9%. The prevalence of rhinitis, including pollinosis, was 31.0%, while that of atopic dermatitis was 26.2% and bronchial asthma was 11.3%. The positive rates for specific IgE antibodies against Japanese cedar pollen was 48.6%. The positive rate for Dermatophagoides farinae, timothy and housedust II were 44.2%, 29.6%, and 28.9%, respectively. Statistically significant differences were recognized between the students with allergic rhinitis, atopic dermatitis, allergic conjunctivitis or bronchial asthma and positive results for D. farinae, housedust II, cedar pollen, Penicillium, Cladosporium, or Aspergillus-specific antibodies. Regarding family history (two generations), a statistical significant difference between family history and positivity for specific IgE antibodies like D. farinae, housedust II, ragweed, cedar pollen or Cladosporium was observed. The total IgE titer was correlated with the number of positive allergen items. The increasing prevalence of various allergic diseases in developed countries remains a mystery, but the hygienehypothesis has attracted some attention. The findings of this epidemiologic study will contribute to basic data on the increasing prevalence of various allergic diseases.     

铁皮石斛复方制剂的抗氧化和延缓衰老作用研究

目的 研究铁皮石斛复方制剂的抗氧化和延缓衰老作用.方法 通过二苯代苦味酰基自由基(DPPH)和羟自由基清除实验检测铁皮石斛复方制剂的体外抗氧化活性.利用秀丽线虫氧化应激模型,验证铁皮石斛复方制剂的体内抗氧化活性,同时在正常条件下检测铁皮石斛复方制剂对寿命的影响.在氧化应激条件下,测定铁皮石斛复方制剂对秀丽线虫活性氧(ROS)水平、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)的活力以及丙二醛(MDA)含量的影响.结果 铁皮石斛复方制剂对DPPH和羟自由基均有较好的清除作用,在16.0 mg/mL质量浓度下对DPPH和羟自由基清除率均达到60%.铁皮石斛复方制剂能提高秀丽线虫在高浓度百草枯(50 mmol/L)氧化胁迫条件下的存活率,同时也能延长其在正常条件下的寿命.在低浓度百草枯(2 mmol/L)氧化胁迫下,铁皮石斛复方制剂能显著降低秀丽线虫ROS含量并增强SOD活力,但对CAT活力和MDA含量没有明显影响.结论 铁皮石斛复方制剂具有抗氧化活性,能提高秀丽线虫在氧化胁迫条件下的存活率并延长寿命,其机制可能与提高秀丽线虫SOD活力有关.     

Th17细胞因子及炎症趋化因子在日本血吸虫感染小鼠肝脏中的表达

目的 观察日本血吸虫感染C57BL/6小鼠肝脏Th17细胞因子及其相关炎症趋化因子动态变化和肝脏虫卵肉芽肿病变,探讨其在日本血吸虫虫卵肉芽肿病变形成中的作用.方法 建立日本血吸虫感染C57BL/6小鼠模型,感染后2、4、6、8、10和12周剖杀小鼠,用实时荧光定量PCR法检测小鼠肝脏白介素17(IL-17)、IL-6、...     

MDX—A medical diagnostic decision support system

The MDX diagnostic decision support system contains a multitude of clinical facts as reported in a variety of medical textbooks and national medical journals. The database was custom designed for the medical diagnostic process and offers users the widest range of diagnostic knowledge available from a single source in the industry. The database consists of diseases, conditions, chemicals, drugs, and toxins that are known database consists of diseases, conditions, chemicals, drugs, and toxins that are known to cause medical illness. Each causal element has an asociated file for signs, symptoms and findings. This fully referenced source of encoded clinical knowledge used in MDX comes from the world's experts as they transmit their experience in the written word of books and journals.     

Standard of Practice for the Endovascular Treatment of Thoracic Aortic Aneurysms and Type B Dissections

Thoracic endovascular aortic repair (TEVAR) represents a minimally invasive technique alternative to conventional open surgical reconstruction for the treatment of thoracic aortic pathologies. Rapid advances in endovascular technology and procedural breakthroughs have contributed to a dramatic transformation of the entire field of thoracic aortic surgery. TEVAR procedures can be challenging and, at times, extraordinarily difficult. They require seasoned endovascular experience and refined skills. Of all endovascular procedures, meticulous assessment of anatomy and preoperative procedure planning are absolutely paramount to produce optimal outcomes. These guidelines are intended for use in quality-improvement programs that assess the standard of care expected from all physicians who perform TEVAR procedures.     

Prenatal morphine exposure alters the layer II/III pyramidal neurons morphology in lateral secondary visual cortex of juvenile rats

Altered cortical neuronal morphology and juvenle behavior manifestation by prenatal morphine exposure were well documented. However, this developmental morphine exposure affect the lateral secondary visual area (V2L), which may be critically involved in the multisensory of auditory and visual stimulus, remained poorly understood. To clarify the neuronal architecture changes possibly occurring in the V2L, Golgi‐Cox staining was used in this study to count dendritic length and the spine density of the layer II/III pyramidal neurons in the V2L of the juvenile rats (postnatal day 25, PND25) prenatally exposed to morphine (gestation days 11–18). Quantitative analysis showed that prenatal morphine exposure decreased the total length, branch number, and spine density of the layer II/III pyramidal neurons in the V2L, and selectively altered the total length of the basal dendrites but not of the apical dendrites. The findings may provide the mechanistic understanding of the behavioral changes in the children whose mothers abuse opiates during pregnancy. Synapse 63:1154–1161, 2009. © 2009 Wiley‐Liss, Inc.     

一种新的等剂量线跟踪和绘制算法

等剂量曲线的跟踪和绘制是放射物理剂量学中的一个基本！司题。本文描述了一种逐行逐列扫描式等剂量曲线的跟踪和绘制算法。它具有思路简捷、占用内存少、程序移植性强、绘图区域边界判断简单及适用于任意形状的封闭区域等优点。该方法也适用于其它等值线的跟踪和绘制。     

A comparison of the Ricketts and Tweed-type arch leveling techniques

The purpose of this study was to compare the effectiveness and long-term stability of arch leveling and overbite correction carried out by the Ricketts and modified Tweed techniques. The sample comprised 60 Class II, deep bite, low-angle adolescent nonextraction cases, 30 each from the offices of Robert Ricketts and Fred Schudy, with cephalograms taken before and immediately after treatment and an average of more than 4 years after treatment. Both techniques were successful in overbite correction, producing only minimal increases in mandibular plane angle and anterior facial height. Mandibular incisors in the Ricketts group demonstrated more flaring and anterior bodily movement during treatment, with a greater amount of posttreatment uprighting and overbite relapse than the Schudy group. The Ricketts group demonstrated slightly more than 1 mm of true lower incisor intrusion; this change was relatively stable after treatment. Both techniques produced similar amounts of mandibular molar extrusion during treatment; these changes remained stable after treatment.     

糖尿病大鼠下颌下腺内水通道蛋白-1和5表达变化及意义

目的:观察水通道蛋白-1(AQP1)和水通道蛋白-5(AQP5)在糖尿病大鼠下颌下腺内表达变化,探讨糖尿病患者口渴症状的发生机制.方法:SD大鼠随机分为对照组、糖尿病组、治疗组.取大鼠下颌下腺,分别进行H-E染色、免疫组织化学显色(SP法)和计算机图像分析.结果:对照组和治疗组的血糖分别与糖尿病组血糖比较,均有差异;与...