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Antimicrobial resistance in Neisseria gonorrhoeae is a major issue of public health, and there is a critical need for the development of new anti-gonococcal strategies. In this study, we investigated the effectiveness of antimicrobial blue light (aBL; 405 nm wavelength), an innovative non-pharmacological approach, for the inactivation of N. gonorrhoeae. Our findings indicated that aBL preferentially inactivated N. gonorrhoeae, including antibiotic-resistant strains, over human vaginal epithelial cells in vitro. Furthermore, no genotoxicity of aBL to the vaginal epithelial cells was observed at the radiant exposure for inactivating N. gonorrhoeae. aBL also effectively inactivated N. gonorrhoeae that had attached to and invaded into the vaginal epithelial cells in their co-cultures. No gonococcal resistance to aBL developed after 15 successive cycles of sub-therapeutic aBL inactivation. Endogenous aBL-activatable photosensitizing porphyrins in N. gonorrhoeae were identified and quantified using ultra-performance liquid chromatography, with coproporphyrin being the most abundant species in all the N. gonorrhoeae strains studied. Singlet oxygen was involved in aBL inactivation of N. gonorrhoeae. Taken together, aBL represents a potent potential treatment for antibiotic-resistant gonococcal infection.
This article was published in the following journal.
Name: The Journal of infectious diseases
We report a case of a 3-day-old boy with Neisseria cinerea conjunctivitis, originally misidentified as Neisseria gonorrhoeae conjunctivitis. Neonates are at increased risk for disseminated gonococcal ...
Infection with Neisseria gonorrhoeae (Ngo) is characterized by robust neutrophil influx that is insufficient to clear the bacteria. Sustained neutrophilic inflammation contributes to serious clinical ...
Neisseria gonorrhoeae and Neisseria meningitidis are closely related bacteria that cause a significant global burden of disease. Control of gonorrhoea is becoming increasingly difficult due to widespr...
To analyze the susceptibility of Neisseria gonorrhoeae isolates to penicillin (Pen), cefixime (Cfm), ceftriaxone (Cro), tetracycline (Tet), ciprofloxacin (Cip), azithromycin (Azm) and spectinomycin (S...
Contemporary strategies to curtail the emergence of antimicrobial resistance in Neisseria gonorrhoeae include screening for and treating asymptomatic infections in high-prevalence populations in whom ...
Detection of Chlamydia Trachomatis, Neisseria Gonorrhoeae and Mycoplasma Genitalium by Real-time Multiplex Polymerase Chain Reaction (PCR) After Pooling Pharyngeal, Anorectal and Urinary Samples, in Men Who Have Sex With Men
This study aims to compare the sensitivity of detecting Chlamydia trachomatis, Neisseria gonorrhoeae and Mycoplasma genitalium by real-time multiplex PCR in a pooled analysis (i.e. gatheri...
Approximately 24 healthy male volunteers between the ages of 18 and 35 years will be enrolled at a single center for a duration of two months for each subject. Subjects who meet the enroll...
Clinical Study of a Single-Use, Point-of-Care Molecular Diagnostic Device for the Detection of Neisseria Gonorrhoeae (NG), Trichomonas Vaginalis (TV), and Chlamydia Trachomatis (CT) Utilizing Vaginal Swabs
This is a multi-center study with a minimum of three sites in the United States. The study will enroll approximately 1750 female subjects and will have a study duration of approximately 9 ...
Julius Schachter, PhD, from the Department of Laboratory Medicine at UCSF, and Jeffrey Klausner, MD, from the Department of Public Health, are conducting a study to evaluate a type of test...
A species of gram-negative, aerobic bacteria primarily found in purulent venereal discharges. It is the causative agent of GONORRHEA.
Acute infectious disease characterized by primary invasion of the urogenital tract. The etiologic agent, NEISSERIA GONORRHOEAE, was isolated by Neisser in 1879.
Acute conjunctival inflammation in the newborn, usually caused by maternal gonococcal infection. The causative agent is NEISSERIA GONORRHOEAE. The baby's eyes are contaminated during passage through the birth canal.
Changing an operative procedure from an endoscopic surgical procedure to an open approach during the INTRAOPERATIVE PERIOD.
Strains of Neisseria meningitidis found mostly in Africa.
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