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61.
Role of endoscopic ultrasound and cyst fluid tumor markers in diagnosis of pancreatic cystic lesions
Hussein Hassan Okasha Abeer Abdellatef Shaimaa Elkholy Mohamad-Sherif Mogawer Ayman Yosry Magdy Elserafy Eman Medhat Hanaa Khalaf Magdy Fouad Tamer Elbaz Ahmed Ramadan Mervat E Behiry Kerolis Y William Ghada Habib Mona Kaddah Haitham Abdel-Hamid Amr Abou-Elmagd Ahmed Galal Wael A Abbas Ahmed Youssef Altonbary Mahmoud El-Ansary Aml E Abdou Hani Haggag Tarek Ali Abdellah Mohamed A Elfeki Heba Ahmed Faheem Hani M Khattab Mervat El-Ansary Safia Beshir Mohamed El-Nady 《World journal of gastrointestinal endoscopy》2022,14(6):402-415
62.
Background/Aims: Gallstone patients have a reduced cellular lysosome content in the gallbladder mucosa cells compared with gallstone-free subjects. The purpose of the study was to further evaluate the possible role of lysosomes in the pathogenesis of cholesterol gallstone formation in humans.Methods: Lysosomal enzyme activities were assayed in gallbladder mucosa and for comparison in liver specimens of 19 gallstone-free subjects and 24 gallstone patients undergoing cholecystectomy.Results: Gallstone patients had 25–50% lower activities of the lysosomal proteases cathepsin B, D and L in their gallbladder mucosa compared with gallstone-free subjects. The activity of acid phosphatase also tended to be decreased in gallstone patients. The liver lysosomal enzyme activities were not significantly different between the two groups.Conclusions: The results show that gallstone patients have diminished lysosomal enzyme activities in the gallbladder mucosa, a finding which may be related to decreased intracellular degradation of proteins and/or mucin in the mucosal cells. This may lead to a higher concentration of mucin in gallbladder bile and thus an increased risk of precipitation of cholesterol crystals and gallstone formation. 相似文献
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This study aimed to elucidate the macroscopic and microscopic distributions of the dorsal nerve of penis (DNP) that provides the greatest sensitivity over the glans penis. The glandes of 23 penises of formalin-embalmed cadavers were investigated to confirm the macroscopic and microscopic distributions of the DNP within the glans penis by whole-mount Sihler's staining and histological sectioning. Superficial regions of the mid-glans were reconstructed in three dimensions to define the microstructure of terminal branches of the DNP that project towards the skin surface. A mean of 6.7 bundles of the DNP consisting of several nerve fibres converged linearly towards the distal end of the penis, rather than diverging laterally as they travelled. Lateral branches of the DNP extended linearly to the distal end with ramifications, while dorsomedial branches of the DNP gave off nerve fibres to the dorsum of the mid-glans and the corona. The intrastromal ramifications of the DNP were more developed in the distal half of the glans penis than the proximal glans containing the corpus cavernosum. These ramifications gave rise to radial nerve fibres that project towards the skin surface to form a plexiform network of terminal branches in the dermis. Linear projections of the main branches of the DNP throughout the glans and fine networks of terminal branches in the dermis were distinctly visualized in the human penis. 相似文献
65.
《Diagnostic Histopathology》2014,20(3):102-108
It is now widely accepted that fatty liver disease is one of the commonest causes of cirrhosis and liver cell cancer (even in the absence of cirrhosis), in its own right as well as being an important cofactor for the progression of other diseases e.g. viral hepatitis. While much work has been done on developing non-invasive techniques for assessing liver disease, the liver biopsy remains the benchmark against which these tests have to be validated as well as providing information that cannot be obtained in any other way. This review describes the histological features that alcoholic and non-alcoholic liver disease have in common (e.g. fatty change, ballooning and Mallory–Denk bodies) as well as identifying those that are more characteristic of each of them (e.g. nuclear vacuolation in non-alcoholic fatty liver disease and a florid fatty liver hepatitis in alcoholic fatty liver disease). Recent developments in the assessment of the degree of fatty change are described. 相似文献
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牙着色即牙的外部颜色改变。国内外学者在体外建立牙的着色实验模型,探讨牙着色的影响因素,并对牙着色的清除方法作了研究。本文对相关研究的最新进展作一综述。 相似文献
68.
甲苯胺蓝染色的卡氏肺孢子虫包囊中发现特征性括号状结构 总被引:1,自引:0,他引:1
陈锡慰 《中国血吸虫病防治杂志》1993,(1)
本研究以可的松诱发卡氏肺孢子虫感染的大鼠与小鼠,制备肺涂片进行甲苯胺蓝染色。所有的卡氏肺孢子虫包囊均染成深紫红色,与蓝色背景易于区别。在两种肺涂片中均可见到含括号状结构的包囊,与Grocott果氏四胺银染色结果相似。一般认为该结构可以是与真菌鉴别的标志。实验结果表明甲苯胺蓝染色有可能取代银染色法,成为卡氏肺孢子虫性肺炎诊断的一种实用技术。 相似文献
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70.
Michael G. Zywiel D. Alex Stroh Aaron J. Johnson David R. Marker Michael A. Mont 《International journal of infectious diseases》2011,15(10):e702