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1.
BMC Infect Dis ; 24(1): 981, 2024 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-39285366

RESUMEN

BACKGROUND: Mycoplasma genitalium (MG), a sexually transmitted infection (STI), has emerged as a common cause of non-gonococcal urethritis and cervicitis worldwide, with documented resistance to commonly used antibiotics including doxycycline and azithromycin. Data in Ghana regarding the prevalence of MG is limited. METHODS: This retrospective study investigated MG presence and macrolide resistance among patients who previously reported to selected clinics for STI symptoms between December 2012 and June 2020. Samples were screened for MG and mutations associated with azithromycin resistance were investigated using Nucleic Acid Amplification Testing (NAAT) including the Resistance Plus MG® kit from SpeeDx and the LightMix® kit for MG, combined with the Modular Mycoplasma Macrolide from TIB Molbiol. RESULTS: A total of 1,015 samples were screened, out of which MG infection rate by TIB Molbiol and SpeeDx were 3.1% and 3.4%, respectively. The mutation responsible for macrolide resistance was detected in one MG positive sample by both assays. Both diagnostic tests revealed no significant association between MG infection and socio-demographic characteristics, clinical symptoms, gonorrhea, and chlamydia infection status. There was no significant difference in the mycoplasma percentage positivity rate detected using SpeeDx (3.4%) and TIB Molbiol (3.1%). CONCLUSIONS: While not commonly tested as a cause of STI symptoms, MG is widespread in Ghana, exhibiting symptoms and prevalence comparable to those in other countries and linked to antimicrobial resistance. Future research using various molecular techniques is essential to monitor resistance trends and guide future antibiotic choices.


Asunto(s)
Antibacterianos , Farmacorresistencia Bacteriana , Macrólidos , Infecciones por Mycoplasma , Mycoplasma genitalium , Mycoplasma genitalium/efectos de los fármacos , Mycoplasma genitalium/genética , Mycoplasma genitalium/aislamiento & purificación , Humanos , Infecciones por Mycoplasma/epidemiología , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/microbiología , Ghana/epidemiología , Femenino , Masculino , Adulto , Estudios Retrospectivos , Prevalencia , Macrólidos/farmacología , Macrólidos/uso terapéutico , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Farmacorresistencia Bacteriana/genética , Adulto Joven , Adolescente , Persona de Mediana Edad , Salud Sexual , Azitromicina/farmacología , Azitromicina/uso terapéutico , Mutación , Pruebas de Sensibilidad Microbiana
2.
Sci Rep ; 14(1): 20152, 2024 08 30.
Artículo en Inglés | MEDLINE | ID: mdl-39215118

RESUMEN

Anemia is a common problem in South American camelids (SACs). Infections with Candidatus Mycoplasma haemolamae (CMh), a cell-wall free, hemotropic bacterium, are often suspected to be an important cause of anemia, as the pathogen infects the erythrocytes and is found in the blood of up to 30% of SACs. The information on the clinical signs of animals infected with this pathogen vary widely. Most infections are clinically inapparent. Treatment is usually carried out with oxytetracycline. A detailed overview of the clinical and hematological findings in 13 alpacas infected with Candidatus M. haemolamae (CMh+), based on patients from our university clinic and comparing those findings with the results of 22 negative alpacas (CMh-) is provided. Assignment to both groups was based on the PCR result. No relevant clinical or hematological differences between CMh+ and CMh- were found, the clinical signs in CMh+ were usually due to comorbidities. The examination of a blood smear alone proved to be insufficient; a PCR test should be carried out to confirm or rule out an infection. A critical review of the need for antibiotic treatment on the basis of a positive test result alone is recommended.


Asunto(s)
Camélidos del Nuevo Mundo , Infecciones por Mycoplasma , Mycoplasma , Camélidos del Nuevo Mundo/microbiología , Infecciones por Mycoplasma/veterinaria , Infecciones por Mycoplasma/microbiología , Infecciones por Mycoplasma/sangre , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/diagnóstico , Animales , Mycoplasma/aislamiento & purificación , Mycoplasma/genética , Masculino , Femenino , Anemia/microbiología , Anemia/sangre , Anemia/veterinaria , Antibacterianos/uso terapéutico , Oxitetraciclina/uso terapéutico
3.
Phytomedicine ; 133: 155953, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39154527

RESUMEN

BACKGROUND: Mycoplasma gallisepticum (MG) has long been a pathogenic microorganism threatening the global poultry industry. Previous studies have demonstrated that the mechanism by which quercetin (QUE) inhibits the colonization of MG in chicks differs from that of antibiotics. However, the molecular mechanism by which QUE facilitates the clearance of MG remains unclear. PURPOSE: The aim of this study was to investigate the molecular mechanism of MG clearance by QUE, with the expectation of providing new options for the treatment of MG. METHODS: A model of MG infection in chicks and MG-induced M1 polarization in HD-11 cells were established. The mechanism of QUE clearance of MG was investigated by evaluating the relationship between tracheal mucosal barrier integrity, antibody levels, Th1/Th2 immune balance and macrophage metabolism and M1/M2 polarization balance. Furthermore, network pharmacology and molecular docking techniques were employed to explore the potential molecular pathways connecting QUE, M2 polarization, and fatty acid oxidation (FAO). RESULTS: The findings indicate that QUE remodels tracheal mucosal barrier function by regulating tight junctions and secretory immunoglobulin A (sIgA) expression levels. This process entails the regulatory function of QUE on the Th1/Th2 immune imbalance that is induced by MG infection in the tracheal mucosa. Moreover, QUE intervention impeded the M1 polarization of HD-11 cells induced by MG infection, while simultaneously promoting M2 polarization through the induction of FAO. Conversely, inhibitors of the FAO pathway impede this effect. The results of computer network analysis suggest that QUE may induce FAO via the PI3K/AKT pathway to promote M2 polarization. Notably, inhibition of the PI3K/AKT pathway was found to effectively inhibit M2 polarization in HD-11 cells, while having a limited effect on FAO. CONCLUSIONS: QUE promotes M2 polarization of HD-11 cells to enhance Th2 immune response through FAO and PI3K/AKT pathways, thereby restoring tracheal mucosal barrier function and ultimately inhibiting MG colonization.


Asunto(s)
Pollos , Infecciones por Mycoplasma , Mycoplasma gallisepticum , Enfermedades de las Aves de Corral , Quercetina , Células Th2 , Animales , Quercetina/farmacología , Mycoplasma gallisepticum/efectos de los fármacos , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/inmunología , Enfermedades de las Aves de Corral/tratamiento farmacológico , Enfermedades de las Aves de Corral/inmunología , Células Th2/efectos de los fármacos , Células Th2/inmunología , Mucosa Respiratoria/efectos de los fármacos , Mucosa Respiratoria/inmunología , Tráquea/efectos de los fármacos , Simulación del Acoplamiento Molecular , Uniones Estrechas/efectos de los fármacos , Inmunoglobulina A Secretora/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Células TH1/efectos de los fármacos , Células TH1/inmunología , Macrófagos/efectos de los fármacos , Ácidos Grasos
5.
Poult Sci ; 103(10): 104145, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39127004

RESUMEN

Mycoplasma gallisepticum (MG) is a pathogen that induces chronic respiratory illnesses in chickens, leading to tracheal and lung injury, and eliciting immune reactions that support sustained colonization. Baicalin, a compound found in scutellaria baicalensis, exhibits anti-inflammatory, antioxidant, and antibacterial properties. This study aimed to investigate the potential of baicalin in alleviating lung and cell damage caused by MG by restoring imbalances in M1/M2 and Th1/Th2 differentiation and to explore its underlying mechanism. In this research, a model for M1/M2 polarization induced by MG was initially developed. Specifically, infection with MG at a multiplicity of infection (MOI) of 400 for 6 h represented the M1 model, while infection for 10 h represented the M2 model. The polarization markers were subsequently validated using qRT-PCR, ELISA, and Western blot analysis. Baicalin disrupts the activation of M1 cells induced by MG and has the potential to restore the balance between M1 and M2 cells, thereby mitigating the inflammatory damage resulting from MG. Subsequent studies on MG-infected chickens detected imbalances in M1/M2 and Th1/Th2 differentiation in alveolar lavage fluid, as well as imbalances in macrophages and Th cells in the lung. The M1/Th1 model was exposed to MG for 5 d, while the M2/Th2 model was infected with MG for 7 d. The utilization of both light and electron transmission microscopes revealed that the administration of baicalin resulted in a reduction in the number of M1 cells, a decrease in cytoplasmic vacuoles, restoration of mitochondrial swelling and chromatin agglutination, as well as alleviation of alveolar rupture and inflammatory cell infiltration. Furthermore, baicalin restored MG-induced M1/M2 and Th1/Th2 imbalances and inhibited the phosphorylation of p38 and p65 proteins, thereby hindering the activation of the TLR4-p38 MAPK/NF-κB pathway. This study provides insights into the potential long-term effects of baicalin in MG infection and offers a theoretical basis for practical applications.


Asunto(s)
Pollos , Flavonoides , Infecciones por Mycoplasma , Mycoplasma gallisepticum , Enfermedades de las Aves de Corral , Animales , Mycoplasma gallisepticum/efectos de los fármacos , Enfermedades de las Aves de Corral/tratamiento farmacológico , Enfermedades de las Aves de Corral/microbiología , Enfermedades de las Aves de Corral/inmunología , Flavonoides/farmacología , Flavonoides/administración & dosificación , Infecciones por Mycoplasma/veterinaria , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/inmunología , Células TH1/inmunología , Células TH1/efectos de los fármacos
6.
Antimicrob Agents Chemother ; 68(10): e0100624, 2024 Oct 08.
Artículo en Inglés | MEDLINE | ID: mdl-39207152

RESUMEN

Antimicrobial resistance is extremely common in Mycoplasma genitalium, a frequent cause of urethritis in men and cervicitis, vaginitis, and pelvic inflammatory disease in women. Treatment of M. genitalium infections is difficult due to intrinsic and acquired resistance to many antibiotic classes. We undertook a program to identify novel antimicrobials with activity against M. genitalium from fungal natural products. Extracts of Ramularia coccinea contained a molecule with potent activity that was subsequently identified as fusidic acid, a fusidane-type antibiotic that has been in clinical use for decades outside the United States. We found that minimum inhibitory concentrations of fusidic acid ranged from 0.31 to 4 µg/mL among 17 M. genitalium strains including laboratory-passaged and low-passage clinical isolates. Time-kill data indicate that bactericidal killing occurs when M. genitalium is exposed to ≥10 µg/mL for 48 h, comparing favorably to serum concentrations obtained from typical loading dose regimens. Resistance to fusidic acid was associated with mutations in fusA consistent with the known mechanism of action in which fusidic acid inhibits protein synthesis by binding to elongation factor G. Interestingly, no mutants resistant to >10 µg/mL fusidic acid were obtained and a resistant strain containing a F435Y mutation in FusA was impaired for growth in vitro. These data suggest that fusidic acid may be a promising option for the treatment of M. genitalium infections.


Asunto(s)
Antibacterianos , Ácido Fusídico , Pruebas de Sensibilidad Microbiana , Mycoplasma genitalium , Mycoplasma genitalium/efectos de los fármacos , Ácido Fusídico/farmacología , Antibacterianos/farmacología , Humanos , Farmacorresistencia Bacteriana/efectos de los fármacos , Farmacorresistencia Bacteriana/genética , Productos Biológicos/farmacología , Ascomicetos/efectos de los fármacos , Femenino , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/microbiología
7.
Indian J Dermatol Venereol Leprol ; 90(5): 632-635, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38899414

RESUMEN

Background Increasing rates of macrolide and fluroquinolone resistance in Mycoplasma genitalium (MG) are being reported worldwide with resultant treatment failure. Aim We aimed to determine the level of antibiotic resistance of MG in men who have sex with men (MSM) attending a sexually transmitted infections (STIs) clinic in New Delhi, India. Methods Real-time polymerase chain reaction (PCR) assays targeting MgPa and pdhD genes were performed to detect MG rectal, urogenital or oropharyngeal infections in 180 MSM between January 2022 and June 2023. Macrolide resistance-associated mutations (MRM) and quinolone resistance-associated mutations (QRM) were detected by specific amplification of domain V of 23SrRNA gene and appropriate regions of parC and gyrA genes respectively followed by sequencing. PCR-based screening for Chlamydia trachomatis (CT) infection was also performed. Results A total of 13 (7.2%) MSM were positive for MG infection. The most common site of infection was anorectum (8/13; 61.5%) followed by the urethra (5/13; 38.5%). None of the patients had infection at both the sites, and no oropharyngeal MG infection was detected. CT infection was detected in 37 (20.6%) MSM. Of the 13 MG-infected MSM, 6 (46.2%) were co-infected with CT. MRM and QRM were found in five (46.2%) and two (15.4%) strains, respectively. Both Quinolone resistance mutation (QRM)-harbouring strains also harboured MRM. All the five MG isolates carried the MRM A2071G. Both the QRM isolates co-harboured the parC and gyrA single-nucleotide polymorphisms. There was no correlation between the presence of antibiotic resistance and co-infection with CT (P = 0.52). Limitation Because all patients in the study were MSM, the high rate of resistance to macrolides and fluoroquinolones could not be extrapolated for non-MSM patients. Conclusion This is a report of an initial survey of antibiotic resistance to MG in a country where its diagnosis and treatment are not routinely available. We found a high prevalence of MG-carrying MRM, QRM and dual-class resistance in MSM in the absence of antibiotic exposure. This study mandates the need for both screening and detection of antimicrobial resistance against MG.


Asunto(s)
Antibacterianos , Farmacorresistencia Bacteriana , Fluoroquinolonas , Macrólidos , Mutación , Infecciones por Mycoplasma , Mycoplasma genitalium , Humanos , Mycoplasma genitalium/genética , Mycoplasma genitalium/efectos de los fármacos , Masculino , Fluoroquinolonas/farmacología , Fluoroquinolonas/uso terapéutico , Proyectos Piloto , Infecciones por Mycoplasma/epidemiología , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/microbiología , India/epidemiología , Adulto , Farmacorresistencia Bacteriana/genética , Macrólidos/farmacología , Macrólidos/uso terapéutico , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Homosexualidad Masculina , Adulto Joven , Persona de Mediana Edad
8.
J Infect Public Health ; 17(7): 102447, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38824739

RESUMEN

BACKGROUND: Current clinical care for common bacterial STIs (Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG) and Mycoplasma genitalium (MG)) involves empiric antimicrobial therapy when clients are symptomatic, or if asymptomatic, waiting for laboratory testing and recall if indicated. Near-to-patient testing (NPT) can improve pathogen-specific prescribing and reduce unnecessary or inappropriate antibiotic use in treating sexually transmitted infections (STI) by providing same-day delivery of results and treatment. METHODS: We compared the economic cost of NPT to current clinic practice for managing clients with suspected proctitis, non-gonococcal urethritis (NGU), or as an STI contact, from a health provider's perspective. With a microsimulation of 1000 clients, we calculated the cost per client tested and per STI- and pathogen- detected for each testing strategy. Sensitivity analyses were conducted to assess the robustness of the main outcomes. Costs are reported as Australian dollars (2023). RESULTS: In the standard care arm, cost per client tested for proctitis, NGU in men who have sex with men (MSM) and heterosexual men were the highest at $247.96 (95% Prediction Interval (PI): 246.77-249.15), $204.23 (95% PI: 202.70-205.75) and $195.01 (95% PI: 193.81-196.21) respectively. Comparatively, in the NPT arm, it costs $162.36 (95% PI: 161.43-163.28), $158.39 (95% PI: 157.62-159.15) and $149.17 (95% PI: 148.62-149.73), respectively. Using NPT resulted in cost savings of 34.52%, 22.45% and 23.51%, respectively. Among all the testing strategies, substantial difference in cost per client tested between the standard care arm and the NPT arm was observed for contacts of CT or NG, varying from 27.37% to 35.28%. CONCLUSION: We found that NPT is cost-saving compared with standard clinical care for individuals with STI symptoms and sexual contacts of CT, NG, and MG.


Asunto(s)
Enfermedades de Transmisión Sexual , Humanos , Masculino , Femenino , Enfermedades de Transmisión Sexual/diagnóstico , Enfermedades de Transmisión Sexual/economía , Enfermedades de Transmisión Sexual/tratamiento farmacológico , Gonorrea/diagnóstico , Gonorrea/economía , Gonorrea/tratamiento farmacológico , Australia , Adulto , Análisis Costo-Beneficio , Infecciones por Chlamydia/diagnóstico , Infecciones por Chlamydia/economía , Infecciones por Chlamydia/tratamiento farmacológico , Chlamydia trachomatis , Neisseria gonorrhoeae/aislamiento & purificación , Mycoplasma genitalium , Tamizaje Masivo/economía , Tamizaje Masivo/métodos , Infecciones por Mycoplasma/diagnóstico , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/economía , Uretritis/diagnóstico , Uretritis/economía , Uretritis/tratamiento farmacológico , Uretritis/microbiología
9.
Sci Rep ; 14(1): 12856, 2024 06 04.
Artículo en Inglés | MEDLINE | ID: mdl-38834637

RESUMEN

The recommended first-line treatment for Mycoplasma genitalium infections is azithromycin. However, the prevalence of macrolide resistance for M. genitalium has increased to more than 50% worldwide. In 2013, Australia introduced a resistance-guided therapy (RGT) strategy to manage M. genitalium infections. This study assesses the cost-effectiveness of the RGT approach compared to no RGT (i.e., without macrolide resistance profile test) in women, men who have sex with men (MSM), and men who have sex with women (MSW) in Australia. We constructed dynamic transmission models of M. genitalium infections in women, MSM, and MSW in Australia, each with a population of 100,000. These models compared the costs and quality-adjusted life-years (QALYs) gained between RGT and no RGT scenarios from a healthcare perspective over ten years. All costs are reported in 2022 Australian dollars (Australian $). In our model, RGT is cost saving in women and MSM, with the incremental net monetary benefit of $1.3 million and $17.9 million, respectively. In MSW, the RGT approach is not cost-effective, with an incremental cost-effectiveness ratio of -$106.96 per QALY gained. RGT is cost saving compared to no RGT for M. genitalium infections in women and MSM, supporting its adoption as the national management strategy for these two population groups.


Asunto(s)
Antibacterianos , Análisis Costo-Beneficio , Farmacorresistencia Bacteriana , Infecciones por Mycoplasma , Mycoplasma genitalium , Mycoplasma genitalium/efectos de los fármacos , Humanos , Australia/epidemiología , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/economía , Infecciones por Mycoplasma/microbiología , Femenino , Masculino , Antibacterianos/uso terapéutico , Antibacterianos/economía , Antibacterianos/farmacología , Azitromicina/uso terapéutico , Azitromicina/economía , Años de Vida Ajustados por Calidad de Vida , Adulto , Macrólidos/uso terapéutico , Macrólidos/economía
10.
J Microbiol Immunol Infect ; 57(4): 629-637, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38777653

RESUMEN

BACKGROUND: Mycoplasma genitalium is an emerging etiology of sexually transmitted infections (STIs) with increasing resistance to antimicrobials. Surveillance on the epidemiology of M. genitalium infection and antimicrobial resistance is warranted. METHODS: Between September 2021 and August 2023, people with HIV (PWH) and people without HIV (PWoH) at risk of STIs were screened for M. genitalium infection using a multiplex polymerase-chain-reaction assay of specimens collected from the rectum, urethra, oral cavity, and vagina. The prevalences of resistance-associated mutations (RAMs) of M. genitalium to fluoroquinolones, macrolides, and tetracycline were investigated. RESULTS: During the 2-year study period, 1021 participants were enrolled, including 531 PWH and 490 PWoH. Overall, 83 (8.1%) and 34 (7.6%) participants had M. genitalium infection at baseline and during follow-up, respectively, with the rectum being the most common site of detection (61.5%). With the first course of antimicrobial treatment, 27 of 63 (42.9%) participants with M. genitalium infection were cured during follow-up, including 24 of 58 (41.4%) who received doxycycline monotherapy. The prevalence of RAMs to macrolides, fluoroquinolones, and tetracyclines at baseline were 24.3%, 22.4%, and 7.9%, respectively. Though PWH had more M. genitalium infection (10.2% vs 5.9%, p = 0.01), a higher rate of RAMs to macrolides (41.0% vs 14.7%, p < 0.01) was found in PWoH. CONCLUSIONS: Among high-risk populations, the prevalence of M. genitalium infection was 8.1%. The overall genotypic resistance of M. genitalium to macrolides and fluoroquinolones was moderately high in Taiwan. Detection of M. genitalium infection and antimicrobial resistance is warranted to ensure resistance-guided antimicrobial treatments to be administered.


Asunto(s)
Antibacterianos , Farmacorresistencia Bacteriana , Fluoroquinolonas , Macrólidos , Mutación , Infecciones por Mycoplasma , Mycoplasma genitalium , Humanos , Mycoplasma genitalium/genética , Mycoplasma genitalium/efectos de los fármacos , Mycoplasma genitalium/aislamiento & purificación , Macrólidos/farmacología , Macrólidos/uso terapéutico , Taiwán/epidemiología , Fluoroquinolonas/farmacología , Fluoroquinolonas/uso terapéutico , Infecciones por Mycoplasma/epidemiología , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/microbiología , Femenino , Masculino , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Adulto , Farmacorresistencia Bacteriana/genética , Prevalencia , Persona de Mediana Edad , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Pruebas de Sensibilidad Microbiana
11.
Vet Q ; 44(1): 1-11, 2024 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38711265

RESUMEN

Our study aimed to evaluate the effect of different treatments for BRD on health and welfare in fattening bulls. A total of 264 bulls were enrolled. Welfare was assessed on day 2 (T0) and day 15 (T1) after arrival. A decrease in the welfare level was observed from T0 to T1. All bulls were inspected clinically at T0 and T1 revealing an increase of skin lesions and lameness in T1. In both periods, a high incidence of respiratory disease was observed. A prevalence of 79.55% and 95.45% of Mycoplasma bovis using RT-PCR and culture at T0 and T1 respectively was observed. Blood samples were collected for haematology at T0 and T1. At T0, 36 animals were individually treated for BRD with an antimicrobial (IT), 54 received a metaphylactic treatment with tulathromycin (M), 150 received a metaphylactic treatment with tulathromycin plus a second antimicrobial (M + IT) whereas 24 were considered healthy and therefore not treated (NT). Additionally, 128 were treated with a non-steroid anti-inflammatory (NSAID). Neutrophils of M + IT were significantly higher than groups NT and M and the lymphocytes of M + IT were significantly lower than that of IT. White blood cells, neutrophils and N/L ratio of animals treated with an NSAID was significantly higher than that not treated. Lung inspection of 172 bulls at the abattoir indicated that 92.43% presented at least one lung lesion. A statistically significant effect of the NSAID treatment on the lung lesions was observed. Our findings indicate that BRD was a major welfare and health concern and evidence the difficulties of antimicrobial treatment of M. bovis.


Asunto(s)
Bienestar del Animal , Antiinflamatorios no Esteroideos , Compuestos Heterocíclicos , Macrólidos , Animales , Bovinos , Masculino , Estudios Transversales , Antiinflamatorios no Esteroideos/uso terapéutico , Antiinflamatorios no Esteroideos/farmacología , Antibacterianos/uso terapéutico , Antibacterianos/farmacología , Disacáridos/farmacología , Disacáridos/uso terapéutico , Enfermedades de los Bovinos/tratamiento farmacológico , Enfermedades de los Bovinos/microbiología , Mycoplasma bovis/efectos de los fármacos , Antiinfecciosos/uso terapéutico , Antiinfecciosos/farmacología , Infecciones por Mycoplasma/veterinaria , Infecciones por Mycoplasma/tratamiento farmacológico
12.
Poult Sci ; 103(7): 103690, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38663076

RESUMEN

Routine antibiotic administration has been used in intensive animal industries for a long time for health and production benefits. There is now a concerted effort to limit antibiotics administration to only treatment of clinically affected animals and to look for other alternative solutions combined with better husbandry practices for the benefits routine antibiotic administration seems to provide in intensive farming systems. In this paper it is argued that the benefits from routine antibiotics in chickens administration in lay are from suppression of the effects of mycoplasma infections. Mycoplasma freedom has been recommended but is not always practical. Vaccination of mycoplasma negative chickens with live mycoplasma vaccines is now being used (with biosecurity) to decrease antibiotic dependence in lay of poultry in many parts of the world.


Asunto(s)
Crianza de Animales Domésticos , Antibacterianos , Pollos , Farmacorresistencia Bacteriana , Infecciones por Mycoplasma , Enfermedades de las Aves de Corral , Animales , Crianza de Animales Domésticos/métodos , Antibacterianos/farmacología , Antibacterianos/administración & dosificación , Vacunas Bacterianas , Mycoplasma/efectos de los fármacos , Infecciones por Mycoplasma/veterinaria , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/prevención & control , Salud Única , Enfermedades de las Aves de Corral/microbiología , Enfermedades de las Aves de Corral/prevención & control
13.
Future Microbiol ; 19(10): 867-875, 2024 Jul 02.
Artículo en Inglés | MEDLINE | ID: mdl-38629933

RESUMEN

Aim: To study antimicrobial susceptibilities of genital mycoplasmas recovered from endocervical samples of reproductive-age, nonpregnant women (n = 8,336). Materials & methods: For isolation and susceptibility testing, the Mycoplasma IST2 kit was used. Results: As many as 2093 samples were positive for mycoplasmas. The vast majority (>96%) of Ureaplasma urealyticum remained susceptible to tetracycline, doxycycline, josamycin and pristinamycin, whereas susceptibility rates to azithromycin and fluoroquinolones were significantly decreased. Mycoplasma hominis exhibited high susceptibility rates to doxycycline, pristinamycin and josamycin (98.1-100%), while susceptibilities to tetracycline and fluoroquinolones were considerably lower. Conclusion: Doxycycline remained highly potent for treating mycoplasmas; nevertheless, susceptibilities to other antimicrobials were significantly diminished.


[Box: see text].


Asunto(s)
Antibacterianos , Farmacorresistencia Bacteriana , Pruebas de Sensibilidad Microbiana , Infecciones por Mycoplasma , Mycoplasma hominis , Ureaplasma urealyticum , Humanos , Femenino , Infecciones por Mycoplasma/microbiología , Infecciones por Mycoplasma/epidemiología , Infecciones por Mycoplasma/tratamiento farmacológico , Antibacterianos/farmacología , Grecia/epidemiología , Ureaplasma urealyticum/efectos de los fármacos , Ureaplasma urealyticum/aislamiento & purificación , Mycoplasma hominis/efectos de los fármacos , Mycoplasma hominis/aislamiento & purificación , Adulto , Adulto Joven , Doxiciclina/farmacología , Mycoplasma/efectos de los fármacos , Mycoplasma/aislamiento & purificación , Cuello del Útero/microbiología , Infecciones por Ureaplasma/microbiología , Infecciones por Ureaplasma/epidemiología , Infecciones por Ureaplasma/tratamiento farmacológico , Fluoroquinolonas/farmacología , Josamicina/farmacología , Persona de Mediana Edad , Adolescente , Azitromicina/farmacología , Tetraciclina/farmacología , Pristinamicina/farmacología
14.
Folia Microbiol (Praha) ; 69(3): 693-696, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38625660

RESUMEN

Following the COVID-19 infection, the sternum dislocation and wound dehiscence resulted in an infection complicating the recovery of an immunosuppressed patient after bilateral lung transplantation. Anaerobic culture (96 h) of milky cloudy wound secretion resulted in the growth of pinpoint haemolytic colonies identified as Metamycoplasma hominis (formerly Mycoplasma hominis). The search for the endogenous source of the infection found the bacterium exclusively in the patient's sputum, making a possible link to donor lung M. hominis colonization. Unfortunately, the donor samples were no longer available. The wound infection was successfully treated with 17 days of clindamycin despite the continuous PCR detection of M. hominis in the sputum after the end of the treatment.


Asunto(s)
Trasplante de Pulmón , Infecciones por Mycoplasma , Mycoplasma hominis , Infección de la Herida Quirúrgica , Humanos , Trasplante de Pulmón/efectos adversos , Infección de la Herida Quirúrgica/microbiología , Infección de la Herida Quirúrgica/tratamiento farmacológico , Infección de la Herida Quirúrgica/diagnóstico , Mycoplasma hominis/genética , Mycoplasma hominis/aislamiento & purificación , Infecciones por Mycoplasma/microbiología , Infecciones por Mycoplasma/diagnóstico , Infecciones por Mycoplasma/tratamiento farmacológico , Masculino , COVID-19/diagnóstico , Antibacterianos/uso terapéutico , Esputo/microbiología , Persona de Mediana Edad , SARS-CoV-2/genética , SARS-CoV-2/aislamiento & purificación , Huésped Inmunocomprometido , Clindamicina/uso terapéutico
15.
Sex Transm Dis ; 51(7): 493-498, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38602771

RESUMEN

BACKGROUND: Mycoplasma genitalium is a major contributor to persistent/recurrent urethritis cases. However, there are limited published studies on recent trends of persistent/recurrent urethritis. METHODS: A retrospective analysis was conducted of men presenting with symptomatic urethritis in 16 sexually transmitted disease (STD) clinics from 2015 to 2019. Poisson regression was used to assess trends in the annual proportions of urethritis episodes with follow-up (FU) characterized with persistent/recurrent urethritis symptoms. Results were also stratified by results of chlamydia (CT) and gonorrhea (NG) testing and treatment prescribed. RESULTS: There were 99,897 urethritis episodes, from 67,546 unique men. The proportion of episodes with persistent/recurrent symptomatic FU visits increased 50.8% over a 4-year period (annual percentage change [APC], 11.3%; 95% confidence interval [CI], 6.5-16.3). Similar trends were observed in nonchlamydial nongonococcal urethritis episodes (APC, 12.7%; 95% CI, 6.8-18.9) but increases among those positive for NG (APC, 12.1%; 95% CI, -2.3 to -28.5) or for CT (APC, 7.3%; 95% CI, -6.7 to 23.5) were not statistically significant. Among episodes who received azithromycin as first-line treatment, increases in the proportion of persistent/recurrent FU visits were observed (APC, 12.6%; 95% CI, 8.6-16.7). For episodes where first-line treatment was doxycycline, no significant increases were detected (APC, 4.3%; 95% CI, -0.3 to 9.2). CONCLUSIONS: We found an increase in the proportion of urethritis episodes with persistent or recurrent symptoms over time. Given these observed trends in episodes negative for NG or CT, an etiology not detectable by routine diagnostics was a likely factor in increased persistence, suggesting patients with urethritis may benefit from diagnostic testing for M. genitalium during an initial symptomatic presentation.


Asunto(s)
Infecciones por Mycoplasma , Mycoplasma genitalium , Recurrencia , Uretritis , Humanos , Uretritis/tratamiento farmacológico , Uretritis/diagnóstico , Uretritis/microbiología , Uretritis/epidemiología , Masculino , Mycoplasma genitalium/aislamiento & purificación , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/diagnóstico , Infecciones por Mycoplasma/epidemiología , Estudios Retrospectivos , Adulto , Gonorrea/tratamiento farmacológico , Gonorrea/diagnóstico , Gonorrea/epidemiología , Adulto Joven , Infecciones por Chlamydia/tratamiento farmacológico , Infecciones por Chlamydia/diagnóstico , Infecciones por Chlamydia/epidemiología , Antibacterianos/uso terapéutico , Persona de Mediana Edad , Enfermedades de Transmisión Sexual/tratamiento farmacológico , Enfermedades de Transmisión Sexual/diagnóstico , Enfermedades de Transmisión Sexual/epidemiología , Azitromicina/uso terapéutico , Azitromicina/administración & dosificación , Adolescente , Doxiciclina/uso terapéutico
16.
BMJ Case Rep ; 17(4)2024 Apr 16.
Artículo en Inglés | MEDLINE | ID: mdl-38627052

RESUMEN

We report the case of a young, immunocompetent, non-pregnant woman diagnosed with acute abdomen 3 weeks after an ultrasound-guided transvaginal oocyte retrieval (TVOR). Peritoneal fluid, obtained during exploratory laparoscopy, yielded Mycoplasma hominis as the sole pathogen. The patient's symptoms and signs improved after 24-hour treatment with intravenous clindamycin, ampicillin and gentamycin. Complete resolution was achieved with oral doxycycline for 14 days.


Asunto(s)
Infecciones por Mycoplasma , Peritonitis , Femenino , Humanos , Mycoplasma hominis , Donación de Oocito , Doxiciclina , Clindamicina/uso terapéutico , Peritonitis/tratamiento farmacológico , Peritonitis/etiología , Infecciones por Mycoplasma/diagnóstico , Infecciones por Mycoplasma/tratamiento farmacológico
17.
Rev Esp Quimioter ; 37(3): 270-273, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38591493

RESUMEN

OBJECTIVE: Mycoplasma genitalium (MG) is a microorganism related to sexually transmitted infections. Antibiotic resistance of MG leads to an increase in treatment failure rates and the persistence of the infection. The aim of this study was to describe the most frequent mutations associated with azithromycin and moxifloxacin resistance in our geographical area. METHODS: A prospective study from May 2019 to May 2023 was performed. MG-positive samples were collected. Real-time PCRs (AllplexTM MG-AziR Assay and AllplexTM MG-MoxiR Assay, Seegene) were performed in MG positive samples to detect mutations in 23S rRNA V domain and parC gene. RESULTS: A 37.1% of samples presented resistance determinants to azithromycin and the most common mutation detected was A2059G (57.9%). Resistance to moxifloxacin was studied in 72 azithromycin-resistant samples and 36.1% showed mutations, being G248T the most prevalent (73.1%). CONCLUSIONS: The resistance to different lines of treat ment suggests the need for a targeted therapy and the performing of a test of cure afterwards.


Asunto(s)
Antibacterianos , Azitromicina , Farmacorresistencia Bacteriana , Moxifloxacino , Mutación , Infecciones por Mycoplasma , Mycoplasma genitalium , Mycoplasma genitalium/efectos de los fármacos , Mycoplasma genitalium/genética , Moxifloxacino/farmacología , Moxifloxacino/uso terapéutico , Azitromicina/farmacología , Azitromicina/uso terapéutico , España , Humanos , Estudios Prospectivos , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Farmacorresistencia Bacteriana/genética , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/microbiología , Femenino , Masculino , Pruebas de Sensibilidad Microbiana , ARN Ribosómico 23S/genética , Adulto , Topoisomerasa de ADN IV/genética
18.
Genes (Basel) ; 15(4)2024 04 08.
Artículo en Inglés | MEDLINE | ID: mdl-38674404

RESUMEN

Mycoplasma genitalium (M. genitalium) poses a significant public health challenge due to its association with non-gonococcal urethritis (particularly in men) and antimicrobial resistance. However, despite the prevalence of M. genitalium infections and the rise in resistance rates, routine testing and surveillance remain limited. This is the first study from Croatia that aimed to assess the prevalence and trends of resistance in M. genitalium strains isolated from male individuals by detecting macrolide and fluoroquinolone resistance genes. The study also aimed to explore the factors associated with resistance and changes in resistance patterns over time. Urine samples collected from male individuals in the Zagreb County and northwest region of Croatia between 2018 and 2023 were tested for M. genitalium with the use of molecular methods. Positive samples were subjected to DNA extraction and multiplex tandem polymerase chain reaction (MT-PCR) targeting genetic mutations associated with macrolide (23S rRNA gene) and fluoroquinolone (parC gene) resistance. Of the 8073 urine samples tested from 6480 male individuals (and following the exclusion of repeated specimens), we found that the prevalence of M. genitalium infection was 2.2%. Macrolide resistance was observed in 60.4% of strains, while fluoroquinolone resistance was found in 19.2%. Co-resistance to both antibiotics was present in 18.2% of cases. A statistically significant increase in fluoroquinolone resistance was noted over the study period (p = 0.010), but this was not evident for azithromycin resistance (p = 0.165). There were no statistically significant differences in resistance patterns between age groups, whereas re-testing of patients revealed dynamic changes in resistance profiles over time. The high burden of macrolide resistance and increasing fluoroquinolone resistance underscore the urgent need for comprehensive resistance testing and surveillance programs. The implementation of resistance-guided treatment strategies, along with enhanced access to molecular diagnostics, is pivotal for effectively managing M. genitalium infections.


Asunto(s)
Antibacterianos , Farmacorresistencia Bacteriana , Fluoroquinolonas , Macrólidos , Infecciones por Mycoplasma , Mycoplasma genitalium , Mycoplasma genitalium/genética , Mycoplasma genitalium/efectos de los fármacos , Mycoplasma genitalium/aislamiento & purificación , Humanos , Masculino , Fluoroquinolonas/farmacología , Fluoroquinolonas/uso terapéutico , Croacia/epidemiología , Macrólidos/farmacología , Macrólidos/uso terapéutico , Adulto , Infecciones por Mycoplasma/microbiología , Infecciones por Mycoplasma/epidemiología , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/orina , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Farmacorresistencia Bacteriana/genética , Persona de Mediana Edad , Adulto Joven , ARN Ribosómico 23S/genética , Adolescente , Uretritis/microbiología , Uretritis/epidemiología , Uretritis/tratamiento farmacológico , Pruebas de Sensibilidad Microbiana
19.
Zhongguo Dang Dai Er Ke Za Zhi ; 26(4): 432-436, 2024 Apr 15.
Artículo en Chino | MEDLINE | ID: mdl-38660910

RESUMEN

The patient, a male newborn, was admitted to the hospital 2 hours after birth due to prematurity (gestational age 27+5 weeks) and respiratory distress occurring 2 hours postnatally. After admission, the infant developed fever and elevated C-reactive protein levels. On the fourth day after birth, metagenomic next-generation sequencing of cerebrospinal fluid indicated a positive result for Mycoplasma hominis (9 898 reads). On the eighth day, a retest of cerebrospinal fluid metagenomics confirmed Mycoplasma hominis (56 806 reads). The diagnosis of purulent meningitis caused by Mycoplasma hominis was established, and the antibiotic treatment was switched to moxifloxacin [5 mg/(kg·day)] administered intravenously for a total of 4 weeks. After treatment, the patient's cerebrospinal fluid tests returned to normal, and he was discharged as cured on the 76th day after birth. This article focuses on the diagnosis and treatment of neonatal Mycoplasma hominis purulent meningitis, introducing the multidisciplinary diagnosis and treatment of the condition in extremely preterm infants.


Asunto(s)
Recien Nacido Extremadamente Prematuro , Moxifloxacino , Mycoplasma hominis , Humanos , Mycoplasma hominis/aislamiento & purificación , Recién Nacido , Masculino , Moxifloxacino/uso terapéutico , Moxifloxacino/administración & dosificación , Meningitis Bacterianas/tratamiento farmacológico , Meningitis Bacterianas/microbiología , Meningitis Bacterianas/diagnóstico , Infecciones por Mycoplasma/tratamiento farmacológico , Infecciones por Mycoplasma/diagnóstico , Antibacterianos/uso terapéutico , Antibacterianos/administración & dosificación
20.
Int J Gynaecol Obstet ; 166(1): 27-34, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38491782

RESUMEN

BACKGROUND: Mycoplasma genitalium is an emerging pathogen, which has been linked to cervicitis, urethritis and pelvic inflammatory disease (PID). With the advent of multiplex polymerase chain reaction (PCR) panels for sexually transmitted infections, it is increasingly being identified in pregnant women. OBJECTIVES: The aim was to review international guidelines, which had explicit recommendations for treatment of M. genitalium infection in pregnancy and breastfeeding. SEARCH STRATEGY: PubMed, EMBASE and Cochrane databases were reviewed with no age, species, language or date restrictions. SELECTION CRITERIA: Studies were included if they had an explicit recommendation for treatment of M. genitalium in pregnancy. Studies were excluded if there was no recommendation in pregnancy, if they referred to other international guideline recommendations or were historical versions of guidelines. DATA COLLECTION AND ANALYSIS: References were manually reviewed and 50 papers were selected for review. Only four guidelines were included in the final analysis and they were from Europe, UK, Australia and Aotearoa New Zealand. MAIN RESULTS: All studies recommended azithromycin as first-line treatment, and advised against moxifloxacin use. The dosing schedule of azithromycin, varied between guidelines, as did the utility/safety of pristinamycin for macrolide resistant infections. Safety data was generally reassuring for azithromycin but inconsistent for pristinamycin. CONCLUSIONS: Azithromycin is the first-line treatment for macrolide susceptible or unknown resistance infections, but there is a lack of consistency regarding dosing of azithromycin or the utility/safety of pristinamycin for macrolide resistant infections in pregnancy/lactation.


Asunto(s)
Antibacterianos , Azitromicina , Infecciones por Mycoplasma , Mycoplasma genitalium , Guías de Práctica Clínica como Asunto , Complicaciones Infecciosas del Embarazo , Humanos , Femenino , Embarazo , Infecciones por Mycoplasma/tratamiento farmacológico , Antibacterianos/uso terapéutico , Antibacterianos/administración & dosificación , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico , Azitromicina/uso terapéutico , Azitromicina/administración & dosificación
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