Action of Group A Streptococcus Extracellular Product(s) on the Connective Tissue of the Bovine Heart Valve

Isra?l Goldstein; René Caravano; Janine Parlebas

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Action of Group A Streptococcus Extracellular Product(s) on the Connective Tissue of the Bovine Heart Valve

机译：A组链球菌细胞外产物对牛心脏瓣膜结缔组织的作用

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Group A streptococcal strains isolated from rheumatic fever patients were cultivated in the presence of bovine heart valves in a medium devoid of components from animal origin. Other group A streptococci and various bacteria were used as controls. The supernatant of these cultures was extracted and analyzed chemically and immunologically. The extracts prepared from cultures of two “rheumatogenic” strains in the presence of bovine heart valves showed fraction(s) containing proteins, oses (neutral and amined), and uronic and sialic acids. This fraction(s) was immunologically active with both anti-group A streptococcus and antisoluble connective glycoprotein antisera, with a partial identity reaction. Experiments with a diffusion chamber and attempts to precipitate a postulated enzyme from the culture of these strains by ammonium sulfate suggest that this action is due to an extracellular product of the bacteria. The meaning of these data in the physiopathology of rheumatic cardiac lesions is briefly discussed.

机译：从风湿热患者中分离出的A组链球菌菌株在牛心瓣膜存在的情况下在不含动物来源成分的培养基中进行培养。其他A组链球菌和各种细菌用作对照。提取这些培养物的上清液，并进行化学和免疫学分析。在牛心脏瓣膜的存在下，从两种“引起风湿性”菌株的培养物中提取的提取物显示出含有蛋白质，糖类（中性和胺化）以及糖醛酸和唾液酸的馏分。该级分与抗A组链球菌和抗可溶性结缔糖蛋白抗血清均具有免疫活性，并具有部分同一性反应。用扩散室进行的实验并尝试通过硫酸铵从这些菌株的培养物中沉淀一种假定的酶，表明该作用是由于细菌的细胞外产物引起的。简要讨论了这些数据在风湿性心脏病变的生理病理学中的意义。

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《Infection and immunity》 |1974年第1期|共7页
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Isra?l Goldstein; René Caravano; Janine Parlebas;
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1. Action of Group A Streptococcus Extracellular Product(s) on the Connective Tissue of the Bovine Heart Valve [J] . Isra?l Goldstein, René Caravano, Janine Parlebas Infection and immunity . 1974,第1期

机译：A组链球菌细胞外产物对牛心脏瓣膜结缔组织的作用
2. A human pericardium biopolymeric scaffold for autologous heart valve tissue engineering: cellular and extracellular matrix structure and biomechanical properties in comparison with a normal aortic heart valve [J] . Straka Frantisek, Schornik David, Masin Jaroslav, Journal of biomaterials science . 2018,第4a6期

机译：用于自体心脏瓣膜组织工程的人心包生物聚合物支架：细胞和细胞外基质结构与普通主动脉瓣膜相比的生物力学性质
3. Favorable effects of the detergent and enzyme extraction method for preparing decellularized bovine pericardium scaffold for tissue engineered heart valves. [J] . Yang M, Chen CZ, Wang XN, Journal of biomedical materials research. Part B, Applied biomaterials. . 2009,第1期

机译：洗涤剂和酶提取方法在制备组织工程心脏瓣膜脱细胞牛心包支架中的有利作用。
4. MODELING THE ROLE OF OSCILLATORY FLOW AND DYNAMIC MECHANICAL CONDITIONING ON DENSE CONNECTIVE TISSUE FORMATION IN MESENCHYMAL STEM CELL DERIVED HEART VALVE TISSUE ENGINEERING [C] . Joao S. Soares, Trung L. Be, Fotis Sotiropoulos, ASME Conference on Frontiers in Medical Devices: Applications of Computer Modeling and Simulation . 2014

机译：建模振荡流动和动态机械调节对间充质干细胞衍生心脏瓣膜组织工程致密结缔组织形成的作用
5. Composition, turnover, and mechanics of extracellular matrix in developing, aging, and pathological valves for application in the design of age-specific tissue engineered heart valves. [D] . Stephens, Elizabeth Humes. 2010

机译：发育，衰老和病理性瓣膜中细胞外基质的组成，周转率和力学特性，可用于设计特定年龄的组织工程心脏瓣膜。
6. Action of Group A Streptococcus Extracellular Product(s) on the Connective Tissue of the Bovine Heart Valve [O] . Israël Goldstein, René Caravano, Janine Parlebas 1974

机译：A组链球菌细胞外产物对牛心脏瓣膜结缔组织的作用
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Action of Group A Streptococcus Extracellular Product(s) on the Connective Tissue of the Bovine Heart Valve

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