润肠理气方治疗气阴两虚型结肠慢传输型便秘42例

目的观察润肠理气方治疗气阴两虚型结肠慢传输型便秘的临床疗效。方法将78例病例随机分为治疗组（42例）和对照组（36例）,治疗组予润肠理气方口服,对照组予麻仁丸口服;两组均治疗30天,随访15天,观察临床疗效及主要症状体征积分变化情况。结果治疗组总有效率为85.7%,随访总有效率为73.8%,对照组分别为67.7%和38.9%;组间治疗后和随访临床疗效比较,差异均有统计学意义（P〈0.05）。治疗组治疗前后便次、便质、排便费力不适感、排便时间、腹胀、便意感积分差异均有统计学意义（P〈0.05）,对照组治疗前后便次、便质积分差异有统计学意义（P〈0.05）;组间治疗后比较,排便费力感、排便时间、腹胀、便意感积分差异有统计学意义（P〈0.05）。结论润肠理气方可有效用于治疗气阴两虚型结肠慢传输型便秘。     

祛瘀化痰法辨治冠心病探讨

痰瘀互结是冠心病的病理基础。探讨冠心病痰瘀互结的病机、现代医学基础和祛瘀化痰药物的作用机制。     

Visualizing novel concepts of cardiovascular calcification

Cardiovascular calcification is currently viewed as an active disease process similar to embryonic bone formation. Cardiovascular calcification mainly affects the aortic valve and arteries and is associated with increased mortality risk. Aortic valve and arterial calcification share similar risk factors, including age, gender, diabetes, chronic renal disease, and smoking. However, the exact cellular and molecular mechanism of cardiovascular calcification is unknown. Late-stage cardiovascular calcification can be visualized with conventional imaging modalities such as echocardiography and computed tomography. However, these modalities are limited in their ability to detect the development of early calcification and the progression of calcification until advanced tissue mineralization is apparent. Due to the subsequent late diagnosis of cardiovascular calcification, treatment is usually comprised of invasive interventions such as surgery. The need to understand the process of calcification is therefore warranted and requires new imaging modalities which are able to visualize early cardiovascular calcification. This review focuses on the use of new imaging techniques to visualize novel concepts of cardiovascular calcification.     

Immunohistochemistry of cytochrome P-450 21-hydroxylase: microscopic examination of the enzyme in the bovine adrenal cortex and kidney

Cytochrome P-450 specific for steroid 21-hydroxylase (P-450C21) localized in bovine adrenal cortex and kidney was immunocytochemically observed by the peroxidase-antiperoxidase method using a specific antibody. P-450C21 was present in all three zones of the adrenal cortex. Immunoreactivity for P-450C21 was intense in the zona glomerulosa and inner reticularis and faint in the area between the zona glomerulosa and outer fasciculata, probably representing the zona intermedia. The positive stain was only observed in parenchymal cells. The immunoreactivity varied within each zone, especially in the zona reticularis. In the kidney, immunoreactivity for P-450C21 was exclusively localized in the distal and cortical and medullary collecting tubules. This corresponds to the site of mineralocorticoid action in the kidney. No immunoreactivity was observed in the liver and aorta.     

Clear cell carcinoma of exocrine pancreas: a rare tumor with an unusual presentation

Metastatic clear cell carcinomas are relatively common from primary tumors arising in the kidney, female genital tract, adrenal cortex, and lung, but they rarely occur from primary tumors of the pancreas. We report a case of metastatic pancreatic tumor with marked clear cell changes in a 46-year-old white man presenting with a pseudocyst of the pancreas. At laparotomy, there was a hard area in the head of the pancreas and another hard nodule was present in the omentum. The histologic and immunohistochemical test of the excised omental nodule exhibited features consistent with clear cell carcinoma from pancreatic primary. To our knowledge, this is the first report of a metastatic clear cell pancreatic tumor with such an unusual presentation.