In order to study the association between lower urinary tract infection and cystitis glandularis (CG), 120 cases of CG were diagnosed by cystoscopic biopsy in the suspicious foci of the bladder. Among them, 72 cases were subjected to bacterial counting culture of urine and microscopic examination of urinary sediment, and 60 cases to fluorescence quantitative polymerase chain reaction (FQ-PCR) assay to detect HPV, CMV and HSV DNA in urine samples. In the 72 cases of CG, the positive rate of bacterial counting culture of urine was 15.3% (11/72), and gray zone rate was 18.1% (13/72). 31.9% (23/72) patients were positive in bacterioscopy of urinary sediment. There was statistically significant difference as compared with the control group (P<0.01). Only 4 of 60 urine samples were positive by FQ-PCR in detection of the three viruses mentioned above with the positive rate being 6.67%. Compared with the control group, there was no significant difference (P>0.05). It was concluded that the genesis of CG was closely correlated with the chronic lower urinary tract infection, especially caused by Esch coli.
Cystitis/etiology ; Cystitis/microbiology ; Cystitis/*pathology ; *Escherichia coli Infections ; Metaplasia ; Urinary Bladder/microbiology ; Urinary Bladder/*pathology ; Urinary Tract Infections/complications ; Urinary Tract Infections/*microbiology ; Urinary Tract Infections/pathology

To analyze the risk factors for urinary tract infection (UTI) among inpatients. The case data of 1 875 inpatients receiving urinary bacterial culture in Beijing Haidian Hospital from October 2019 to May 2021 were analyzed retrospectively. According to the etiological diagnostic criteria of UTI, they were divided into infection group and non-infection group. The species and distribution of pathogens in the infection group were analyzed, and the case data and laboratory indexes were subjected to univariate analysis. The variables with statistical significance were selected for binary logistic regression to analyze the risk factors of urinary tract infection and establish a prediction model. The receiver operating characteristic (ROC) curve was drawn for each parameter included in the model, and the area under the curve (AUC) was calculated. The diagnostic and predictive efficacy of each parameter alone and their combination for UTI were evaluated. So, a total of 1 162 patients with non-infection group and 713 patients with UTI were detected. Among the cultured pathogens, the constituent ratio of Gram-negative bacteria, Gram-positive bacteria and fungi was 57.2%(408/713), 35.9%(256/713) and 6.9%(49/713) respectively. Multivariate analysis showed that, Age, duration of urinary catheterization>7 d, stroke and orthopedic surgery were the risk factors of UTI among inpatients. The use of antibiotics is a protective factor for urinary tract infections. The prediction model of UTI was established by the risk factors, age, duration of urinary catheterization>7 d, stroke, orthopedic surgery, urinary leukocyte esterase, urinary nitrite and Coefficient of variability of red blood cell volume distribution width (RDW-CV). The AUC of the combination of the eight parameters in diagnosing and predicting UTI was 0.835 (95%CI: 0.816-0.855), with the sensitivity of 70.7% and the specificity of 82.8%. In conclusion,the combination of the eight parameters can better assist in the diagnosis and prediction of UTI, and provide an experimental basis for clinicians to judge UTI.
Humans ; Retrospective Studies ; Inpatients ; Urinary Tract Infections/microbiology* ; Urinalysis ; Stroke

Humans ; Infant, Newborn ; Male ; Sepsis ; diagnosis ; microbiology ; Urethral Stricture ; complications ; microbiology ; Urinary Tract Infections ; complications ; microbiology

To study the relationship between bacterial infection and the etiology of cystitis glandularis, 36 female Wistar rats were divided into 3 groups. No intervention was given to the rats in the blank group. NS was infused into the bladder of the rats of the control group, and solution containing E. coli was injected into the bladder of experimental group. Three months later, tissue samples of bladder were collected and observed visually and under light microscope. The results showed that tissues of the blank group were normal; one sample in the control group showed Brunn's nests and cystitis cystica, and 10 in the experimental group had the change of cystitis glandularis. Compared to the blank and control group, samples in the experimental group showed significant change (P<0.05). There were no significant difference between blank group and control group (P>0.05). It is concluded that bladder instillation of E. coli can induce cystitis glandularis, which confirms that infection is the cause of cystitis glandularis.
Cystitis/etiology ; Cystitis/*microbiology ; Cystitis/*pathology ; Escherichia coli Infections/*pathology ; Rats, Wistar ; Urinary Bladder/microbiology ; Urinary Bladder/*pathology ; Urinary Tract Infections/complications ; Urinary Tract Infections/*microbiology ; Urinary Tract Infections/pathology

Acupuncture Therapy ; Adult ; Diabetes Complications ; microbiology ; therapy ; Female ; Humans ; Middle Aged ; Urinary Tract Infections ; microbiology ; therapy

Escherichia coli ; classification ; genetics ; isolation & purification ; Escherichia coli Infections ; urine ; Humans ; Urinary Tract Infections ; microbiology ; urine ; Urine ; microbiology

In order to study the association between lower urinary tract infection and cystitis glandularis (CG), 120 cases of CG were diagnosed by cystoscopic biopsy in the suspicious foci of the bladder. Among them, 72 cases were subjected to bacterial counting culture of urine and microscopic examination of urinary sediment, and 60 cases to fluorescence quantitative polymerase chain reaction (FQ-PCR) assay to detect HPV, CMV and HSV DNA in urine samples. In the 72 cases of CG, the positive rate of bacterial counting culture of urine was 15.3% (11/72), and gray zone rate was 18.1% (13/72). 31.9% (23/72) patients were positive in bacterioscopy of urinary sediment. There was statistically significant difference as compared with the control group (P<0.01). Only 4 of 60 urine samples were positive by FQ-PCR in detection of the three viruses mentioned above with the positive rate being 6.67%. Compared with the control group, there was no significant difference (P>0.05). It was concluded that the genesis of CG was closely correlated with the chronic lower urinary tract infection, especially caused by Esch coli.
Adult ; Cystitis ; etiology ; microbiology ; pathology ; Escherichia coli Infections ; Female ; Humans ; Male ; Metaplasia ; Middle Aged ; Urinary Bladder ; microbiology ; pathology ; Urinary Tract Infections ; complications ; microbiology ; pathology

Aims: The study was designed to determine the prevalence of urinary tract infection (UTI) in pregnant women depending on their various clinical and socio-demographic factors, and to assess the antibiotic susceptibility pattern of the responsible uropathogens in a tertiary care hospital of Dhaka, Bangladesh. Methodology and results: A total of 100 midstream urine samples were collected from pregnant women and different clinical and socio-demographic variables viz. age, gestational weeks, living conditions, and level of education associated with UTI were determined. Bacterial isolation was carried out using blood and MacConkey agar and identified according to their phenotypic characteristics. Antibiogram profiling of the isolates was done by disc diffusion method. From 48% of positive UTI samples, the highest bacteriuria was recorded within the age group of 26-30 years (n=19; 59.38%) and in both, 1st and 3rd trimester period (50%). There was no significant association between the studied risk factors and bacteriuria, except for the age of the pregnant women. Most predominantly isolated bacteria was Escherichia coli (n=39; 81.25%), followed by Klebsiella pneumoniae (n=9; 18.75%). In E. coli, the highest resistance was recorded against ceftriaxone (87.18%), followed by cephalexin (84.61%) and ceftazidime (79.49%); whereas K. pneumoniae showed 100% resistance to ceftriaxone and cephalexin. Netilmicin was found as the only effective antibiotic against E. coli showing 100% sensitivity. For K. pneumoniae, azithromycin, imipenem, chloramphenicol, gentamicin, ciprofloxacin, amikacin and nitrofurantoin were found as the most efficacious drugs. Conclusion, significance and impact of study As the emergence of drug resistance is ever increasing, the study necessitates the continuous surveillance of antibiotic susceptibility of uropathogens to ensure safety and better treatment to the mother and fetus.
Urinary Tract Infections--microbiology ; Drug Resistance, Microbial ; Pregnant Women ; Bangladesh (Daka)

OBJECTIVETo detect the genes of Neisseria spp. isolated from patients with male genitourinary tract infections, and to study the pathogenicity of non-gonococcal strains of Neisseria and the laboratory diagnosis for the infections caused by Neisseria spp.

METHODSUsing polymerase chain reaction and nucleotide sequencing, we amplified and sequenced 4 genes of Neisseria spp. isolated from patients with male genitourinary tract infections, including 16S rRNA, orfl, cppB and nspA.

RESULTSFourteen Neisseria strains were identified through analysis of the 16S rRNA gene, including 3 N. mucosa strains, 3 N. cinerea strains, 2 N. gonorrhoea strains, 2 N. sicca strains, 2 N. subflava strains, 1 N. lactamica strain, and 1 N. polysaccharea strain. Among them, 9 showed positive results in gonococcal fluorescence-labeled multiplex-PCR detection, 1 in cppB gene reaction, 5 in orfl gene reaction, and 3 in nspA gene reaction. The consistency rate was 85.7% between the above results from our gene detection and those from the routine bacteriological methods.

CONCLUSIONThe cppB gene is absent in the non-gonococcal strains of Neisseria spp. that can cause male genitourinary tract infection. Most of the strains not only lack virulence-associated orfl and nspA genes, but also show positive results in gonococcal fluorescence-labeled multiplex-PCR detection, which is one of the important reasons for the misdiagnosis and missed diagnosis of gonorrhea infection. The combination of routine bacteriological methods and gene detection in laboratory examinations may help improve the accuracy rates of Neisseria species identification and clinical diagnosis of the infections caused by Neisseria spp.

Genes, Bacterial ; Gonorrhea ; diagnosis ; microbiology ; Humans ; Male ; Neisseria gonorrhoeae ; classification ; genetics ; Polymerase Chain Reaction ; Urinary Tract Infections ; microbiology

TcpC is a homolog of the Toll/interleukin-1 receptor (TIR) domain and is secreted by uropathogenic E. coli strain CFT073. TcpC can bind to MyD88, hereby exerting inhibitory effects on macrophages. TcpC represents an important virulence factor that promotes bacterial survival and pathogenicity. TcpC plays a critical role in urinary tract infection, particularly in the pathogenesis of pyelonephritis. In this review,the progress and prospects in TcpC research are discussed.
Animals ; Escherichia coli ; pathogenicity ; Escherichia coli Proteins ; physiology ; Humans ; Mice ; Pyelonephritis ; microbiology ; Urinary Tract Infections ; microbiology ; Virulence Factors ; physiology