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1.
双波长紫外分光光度法测定贝母中腺苷和胸苷的含量   总被引:4,自引:0,他引:4  
将4种贝母的甲醇提取物经薄层色谱法粗分离后,直接用双波长紫外分光光度法测定其含量。结果表明,该方法线性关系好,腺苷和胸苷标准曲线的相关系数均为0.9999,同时也发现平贝、炉贝和伊贝中腺苷都占核苷总量60%以上,而浙贝中仅占约40%,提示贝母生药的抗凝血活性可能与贝母中核苷类化合物的种类和含量的差别有关。  相似文献   
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Background Acne vulgaris is a common disease affecting adolescents. There is not comprehensive data on acne prevalence in the Central Anatolia Region in particular. Etiology of acne is not clarified yet. Acne might be related to environmental factors. There is increasing evidence supporting acne and diet relationship. Objectives The aim of the study was to determine the acne prevalence in adolescents in the city of Eskisehir, located in the Central Anatolia, Turkey in addition to evaluate factors affecting acne and its relationship with dietary habits. Methods A cross‐sectional study was conducted on 2300 participants aged 13–18 years. The participants were asked to complete a questionnaire form consisting information about acne and a questionnaire form consisting information about dietary habits (The Adolescent Food Habits Checklist). In addition an objective evaluation of acne was determined. Results The mean age of students with acne was 15.10 ± 1.53. The current acne prevalence was 60.7%. Although 21% of the participants had severe acne (grade 3–4) and 25% developed sequelaes, only 11.5% of all participants consulted a doctor. The participants without acne had healthier dietary habits than participants with acne (P < 0.05). Frequent fat intake (OR = 1.39, 95% CI: 1.06–1.82), frequent sugar intake (OR = 1.30, 95% CI: 1.05–1.60), frequent eating sausages, burgers (OR = 1.24, 95% CI: 1.03–1.48), frequent eating pastries, cakes (OR = 1.20, 95% CI: 1.01–1.43) were associated with increased risk for acne. Conclusions Acne prevalence is high among adolescents in Eskisehir but the rate of consulting doctor is low. Increasing public awareness is critical for convincing adolescents to seek medical help earlier. Acne was related with dietary habits. Fat, sugar and fast food consumption is found to be positively correlated with acne prevalence.  相似文献   
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Attention deficit hyperactivity disorder (ADHD) is characterized by attention, concentration, mobility, and impulse control problems and is among the most frequently seen psychiatric disorders during childhood. Our aim was to evaluate cutaneous findings in children and adolescents with ADHD. In our study we found that onychophagy, traumatic skin changes, atopy and related symptoms, certain birthmarks, and acne were frequent cutaneous findings in children with ADHD. Although a limitation is the lack of a control group, ADHD is very common, and our study suggests that further studies of cutaneous findings and ADHD are warranted.  相似文献   
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Pelvic tuberculosis was diagnosed in 72 patients analyzed during the years 1979-1989. Twenty-nine percent of the patients were over 40 years of age. The most common complaints were infertility (47.2%), abdominal or pelvic pain (32%) and abnormal uterine bleeding (11%). Only 2 patients had past or family history of pulmonary tuberculosis. The physical examination was normal in 31.6% of the patients. The chest X-ray was normal in 81% of the patients. Blocked tubes were present in 32 of 34 patients who had hysterosalpingograms. Even if the diagnosis can be made from a histopathologic examination, hysterosalpingography is also a very useful aid in establishing a diagnosis. The most common site of infection was the tubes. Reconstructive surgery was performed in nine patients. Only one pregnancy was found in the present study without any medical or surgical treatment of pelvic tuberculosis. In one patient with habitual abortion as a cause endometrial tuberculosis was also found.  相似文献   
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OBJECTIVE: To evaluate the long-term efficacy of steroid injection for plantar fasciitis using clinical parameters and high-resolution ultrasonography. MATERIAL AND METHODS: Thirty patients (27 female and three male) with plantar fasciitis and 30 healthy controls matched by age, gender and body mass index (BMI), were enrolled in this study. Seventeen of the patients had bilateral and 13 had unilateral (six right, seven left) plantar fasciitis. Palpation-guided steroid injection was applied to the 47 heels of 30 plantar fasciitis patients. Ultrasound examination and pain intensity with visual analog scale (VAS) were assessed three times in each plantar fasciitis patients; before injection and at 1 and 6 months after steroid injection. Ultrasonography was performed to the controls at initial assessment. RESULTS: The plantar fascia was remarkably thicker in the plantar fasciitis group than in controls (P < 0.001). The thickness of the plantar fascia and mean VAS values in the plantar fasciitis group decreased significantly 1 month after steroid injection (P < 0.001, P < 0.001, respectively) and a further decrease was noted 6 months postinjection (P < 0.001, P < 0.001, respectively). Strong correlation was found between the changes of plantar fascia thickness and VAS values 1 month after (P < 0.001, r: 0.61) and 6 months after (P < 0.001, r: 0.49) steroid injection. The incidence of hypoechoic fascia was 73% in the plantar fasciitis group before steroid injection. It decreased significantly at 1 and 6 months postinjection (33% and 7%, respectively, P < 0.001). Gross fascia disruption or other side effects were not observed after steroid injection. CONCLUSION: Steroid injection could be used in plantar fasciitis treatment for its positive long-term effects.  相似文献   
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新缩瞳剂包公藤甲素人工合成研究   总被引:11,自引:0,他引:11  
包公藤甲素是从包公藤(Erycibe obtusifolia Benth.)茎中提得的一个新莨菪烷生物碱,具有强烈的缩瞳作用,临床用于治疗青光眼。本文报道用合成的6β-乙酰氧基托品酮为原料,经卤代、水解、还原和N-去甲基化等反应合成包甲素(8)。经光谱测定证实8与天然包甲素的结构完全一致。合成品系外消旋体,其作用机理与天然品相同,而强度则减半。  相似文献   
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