Infectious urolithiasis is a consequence of long-standing urinary tract infections with urease-positive bacteria, especially Proteus spp. However, because of the often mixed nature of urinary tract infections, in the case of urinary stones formation, several species of bacteria may be involved in the process. The purpose of the study was to determine the impact of the bacterial species: Escherichia coli, Klebsiella pneumoniae, Providencia stuartii, Pseudomonas aeruginosa and Staphylococcus aureus on the crystallization caused by Proteus mirabilis. The studies were conducted in synthetic urine with the addition of P. mirabilis and a representative of another species. During the experiments the viability of bacteria, pH, presence and morphology of crystals, and the intensity of crystallization were assessed. Crystallization of calcium and magnesium phosphates occurred in all investigated configurations. However, there were differences observed in the course and intensity of crystallization between the mixed culture and the P. mirabilis culture. Although most intense crystallization took place in the pure culture of P. mirabilis it was also demonstrated that the presence of other uropathogens increased the survival of P. mirabilis. This synergistic effect could be responsible for the persistence and recurrence of urolithiasis in the urinary tract.

中文翻译：

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各种尿致病菌对奇异变形杆菌引起的尿矿物质成分结晶的影响。

感染性尿石症是尿素酶阳性细菌（尤其是变形杆菌属）长期泌尿道感染的结果。但是，由于尿路感染通常是混合性的，因此在形成尿路结石的过程中可能会涉及多种细菌。该研究的目的是确定细菌物种：大肠杆菌，肺炎克雷伯菌，斯图亚特氏菌，铜绿假单胞菌和金黄色葡萄球菌对由变形杆菌引起的结晶的影响。该研究是在人工尿中进行的，其中添加了奇异假单胞菌和其他物种的代表。在实验过程中，评估了细菌的生存力，pH，晶体的存在和形态以及结晶的强度。磷酸钙和磷酸镁的结晶在所有研究的结构中均发生。然而，在混合培养物和奇异假单胞菌培养物之间的结晶过程和结晶强度中观察到差异。尽管最强烈的结晶发生在奇异假单胞菌的纯培养物中，但也证明了其他尿路致病菌的存在增加了奇异假单胞菌的存活。这种协同作用可能是尿路尿路结石持续存在和复发的原因。还证明了其他尿路致病菌的存在增加了奇异假单胞菌的存活。这种协同作用可能是尿路尿路结石持续存在和复发的原因。还证明了其他尿路致病菌的存在增加了奇异假单胞菌的存活。这种协同作用可能是尿路尿路结石持续存在和复发的原因。