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1.
Prensa méd. argent ; 109(4): 169-176, 20230000. graf
Artigo em Espanhol | LILACS, BINACIS | ID: biblio-1512379

RESUMO

Con la llegada de la pandemia por COVID-19 en el año 2020, múltiples diagnósticos y tratamientos de diversas enfermedades quedaron relegados por el impacto del síndrome respiratorio agudo causado por el nuevo coronavirus (SARS-CoV-2) en los sistemas de salud. Teniendo en cuenta la coexistencia de la pandemia por el virus de inmunodeficiencia humana (VIH) y la provocada por el virus SARS-Cov-2, el objetivo del presente trabajo fue recolectar información de un Hospital de Enfermedades Infecciosas de la Ciudad de Buenos Aires y analizar cómo repercutió la pandemia por SARS-CoV-2 en el diagnóstico de las enfermedades que afectan a la población VIH positiva y, a su vez, comparar el estado clínico al ingreso y egreso de las pacientes en el período pre pandemia y durante la misma. Para esto se analizaron 100 epicrisis correspondientes a la sala 16 de internación de mujeres con complicaciones de la enfermedad VIH/SIDA que fueron asistidas en el período entre Enero del 2020 y Julio del 2021, y 74 epicrisis de pacientes internadas en ese mismo sitio en los siete meses previos. Se tuvieron en cuenta múltiples variables como el motivo de ingreso, conocimiento o no del diagnóstico de VIH, indicación de tratamiento antirretroviral y cumplimiento del mismo, antecedentes patológicos de las pacientes, presencia de enfermedades marcadoras de SIDA e infecciones de transmisión sexual, entre otras. Al comparar los datos entre pre-pandemia y pandemia se evidencia que esta última afectó a la población VIH positiva, en aspectos que van desde el retraso en el diagnóstico de la infección por el retrovirus, el inicio o reinicio de los tratamientos antirretrovirales y diferencias en los múltiples diagnósticos de egreso, incrementándose las consultas por trastornos respiratorios y neurológicos. A todo esto se añadieron las dificultades del personal médico para brindar una buena atención dado por el colapso del sistema sanitario que se hizo presente en dicho contexto. Por otra parte, destacar la importancia de la confección correcta y completa de las historias clínicas para lograr una mejor calidad de atención médica


With the arrival of the COVID-19 pandemic in 2020, many diagnoses and treatments of various diseases were relegated due to the impact of the acute respiratory syndrome caused by the novel coronavirus (SARS-CoV-2) in health systems. Taking into account the coexistence of the human immunodeficiency virus (HIV) pandemic and that caused by the SARS-CoV-2 virus, the objective of this study was to collect information from an Infectious Disease Hospital in the City of Buenos Aires and analyze the impact of the SARS-CoV-2 pandemic on the diagnosis of diseases that affect the HIV-positive population. Also, was compared the clinical status at admission and discharge of patients in the pre-pandemic period and during the same. For this, 100 epicrisis (clinical summaries) corresponding to 16 women who were hospitalized in the period between January 2020 and July 2021 were analyzed, and 74 epicrisis from patients hospitalized during the seven previous months. Multiple variables were considered, such as the reason for admission, whether or not there was knowledge of the HIV diagnosis, the presence of antiretroviral treatment and compliance with it, the patient's clinical history, the presence of marker AIDS diseases and sexually transmitted infections. When comparing the data between both periods, it can be clearly observed that the pandemic generated by SARS-CoV-2 affected the population with HIV, in aspects ranging from the delay in the diagnosis of the retroviral infection, the start or restart of antiretroviral treatments and differences in the multiple discharge diagnoses, especially those involvement the respiratory and the central nervous systems, that added new difficulties to the medical staff due to the saturation of the health system. The importance of the correct and complete preparation of medical records is highlighted in order to achieve better clinical care


Assuntos
Humanos , Masculino , Feminino , Infecções Oportunistas/terapia , Infecções Sexualmente Transmissíveis/terapia , HIV/imunologia , SARS-CoV-2/imunologia , COVID-19/diagnóstico
2.
Transbound Emerg Dis ; 66(2): 715-728, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30427593

RESUMO

Glanders is a highly infectious zoonotic disease caused by Burkholderia mallei. The transmission of B. mallei occurs mainly by direct contact, and horses are the natural reservoir. Therefore, the identification of infection sources within horse populations and animal movements is critical to enhance disease control. Here, we analysed the dynamics of horse movements from 2014 to 2016 using network analysis in order to understand the flow of animals in two hierarchical levels, municipalities and farms. The municipality-level network was used to investigate both community clustering and the balance between the municipality's trades and the farm-level network associations between B. mallei outbreaks and the network centrality measurements, analysed by spatio-temporal generalized additive model (GAM). Causal paths were established for the dispersion of B. mallei outbreaks through the network. Our approach captured and established a direct relationship between movement of infected equines and predicted B. mallei outbreaks. The GAM model revealed that the parameters in degree and closeness centrality out were positively associated with B. mallei. In addition, we also detected 10 communities with high commerce among municipalities. The role of each municipality within the network was detailed, and significant changes in the structures of the network were detected over the course of 3 years. The results suggested the necessity to focus on structural changes of the networks over time to better control glanders disease. The identification of farms with a putative risk of B. mallei infection using the horse movement network provided a direct opportunity for disease control through active surveillance, thus minimizing economic losses and risks for human cases of B. mallei.


Assuntos
Burkholderia mallei/fisiologia , Surtos de Doenças/veterinária , Mormo/epidemiologia , Mormo/transmissão , Animais , Brasil/epidemiologia , Cavalos , Modelos Teóricos , Meios de Transporte
3.
DST j. bras. doenças sex. transm ; 28(4): 115-119, 20161220.
Artigo em Espanhol | LILACS | ID: biblio-877262

RESUMO

La mucosa vaginal ha sido utilizada largamente para la administración de antimicrobianos destinados al tratamiento de infecciones endógenas del tracto genital inferior (IETGI) en mujeres embarazadas y no embarazadas. Candida spp elabora biopelículas (BP) y su formación es un proceso complejo que requiere que las células fúngicas establezcan múltiples interacciones con el medio. Las BP están rodeadas por un exopolímero (EPM) que puede restringir la actividad de anticuerpos, la difusión de sustancias y unirse a los antimicrobianos (AM), limitando su acción. Los antimicrobianos (AM) en general y los antimicóticos en particular (AMC) pueden tener dificultades para llegar a las células dentro del EPS. Muchas de las fórmulas que se emplean para el tratamiento empírico usan combinaciones inapropiadas con limitada o nula actividad sobre las biopelículas (BP). La presencia de moléculas que provoquen su inhibición anulando los inductores del EPM o por otro mecanismo, permitirá la actividad del AM específico. Objetivo: demostrar que la actividad de la clindamicina (CLI) en fórmula dual con ketoconazol (KET) actúa sobre BP Candida albicans (CA) y especies no albicans de Candida . (NAC). Métodos: estudiamos la actividad de clindamicina-ketoconazol (CK) sobre la adherencia y dispersión de BP de 8 aislamientos vaginales de CA y 7 de CNA. Se inocularon en 3 tubos con caldo Sabouraud y un dispositivo de vidrio para la formación de la BP según técnica ya descrita. Adherencia: Se incubaron durante 6 horas y se agregó una combinación de CK proveniente del material de óvulos, diluido convenientemente (62,5/260,4 ug/ml), a uno de los tubos de cada aislamiento tomándose como hora 0. Dispersión: esa misma dilución se agregó a otro tubo a las 16 horas. El tercer tubo quedó como testigo sin antimicrobianos. La lectura se efectuó con microscopio óptico a las 24 horas de agregada la combinación CK previa tinción con cristal violeta y se evaluaron con programas fotográficos. Por separado analizamos la actividad de CLI (62,5 ug/ml) y KET (260,4 ug/ml) con técnica similar. Seleccionamos las muestras de 7 pacientes que demostraron candidiasis vulvovaginal (CVV) y las estudiamos con la técnica de capas celulares. Se empleó la combinacion CK para el estudio de la adherencia y dispersión. Resultados: Adherencia se demostró poca influencia de CK en la adherencia con respecto a cada testigo. Dispersión: la influencia de CK se demostró en la mayoría de los aislamientos particularmente en los de CNA que mostraron una mayor presencia de EPM. Las hifas solo se observaron en 1/15 de los aislamientos de Candida spp cuando se agregó CK a las 16 horas. En las BP de las muestras clínicas no aparecieron hifas ni otro elemento micótico en 5/7 con respecto a los testigos. Conclusión: Según estos resultados el uso de una combinación de CK en BP de Candida spp, resulta en una adecuada penetración del AMC demostrada por la dispersión de la BP al cabo de 24 horas. Clindamicina no interfiere con la acción del ketoconazol sino que promovería su actividad anti-candida modificando posiblemente estructuras de superficie y la del EP por inhibición de las moléculas que facilitan la expresión del mismo. In vivo promueve la actividad inmunomoduladora que no se puede demostrar con este modelo in vitro. Su uso combinado en fórmulas duales facilitaría la actividad del AMC sobre Candida spp actuando como inhibidora o modificadora de las BP mediante la dispersión del EPM


The vaginal mucosa has been widely used for administering antimicrobial agents to treat endogenous infections of the lower genital tract in pregnant and non-pregnant women. Candida spp. elaborates biofilms, and its formation is a complex process requiring that fungal cells establish multiple interactions with the medium. Biofilms are surrounded by an exopolymer matrix that can restrict the activity of antibodies, the diffusion of substances, and be associated with antimicrobials, therefore limiting its actions. General antimicrobials and particular anti-mycotic agents can face difficulties to access the cells within the exopolymer matrix. Many formulas used for empirical treatment have improper combinations with limited or null activity on the biofilms. The presence of molecules that cause its inhibition, thus eliminating the exopolymer matrix inducers, or by other mechanism, will allow the specific antimicrobial activity. Objective: To show that the activity of clindamycin used in dual formula with ketoconazole works on Candida albicans biofilm and on non- albicans species of Candida . Methods: We studied the activity of clindamycin and ketoconazole regarding the adherence and dispersion of biofilms from eight vaginal isolates of C. albicans and 7 of non- albicans Candida . The isolates were inoculated in three tubes with Sabouraud agar and a glass device to form the biofilm according to a known technique. Adherence : Each isolate was incubated for a six-hour period and a combination of clindamycin and ketoconazole from the material of ovules was added and conveniently diluted to one of the tubes of each isolate (62.5/260.4 ug/mL), considering 0 hour. Dispersion: The same dilution was added to another tube after 16 hours. The third tube was used as a control without antimicrobials. The reading was carried out with an optical microscope after 24 hours that the clindamycin and ketoconazole combination had been added and colored with crystal violet. They were then evaluated using photographic programs. The activity of clindamycin (62.5 ug/mL) and ketoconazole (260.4 ug/mL) was analyzed alone with a similar technique. We chose vaginal samples from seven patients with vulvovaginal candidiasis and studied them through the cell layer technique. The clindamycin and ketoconazole combination was used for studying the adherence and dispersion. Results: Adherence: Little influence of clindamycin and ketoconazole was seen in adherence regarding each control. Dispersion: The clindamycin and ketoconazole influence was seen in most of the isolates, especially in those of non- albicans Candida that showed higher presence of exopolymer matrix . The hyphae were only seen in 1 of 15 isolates of Candida spp after the clindamycin and ketoconazole were added at the 16th hour. In biofilms of clinical samples, neither hyphae nor mycotic elements were seen in 5 of 7 compared with the controls. Conclusion: According to these results, the use of a clindamycin and ketoconazole combination in biofilms of Candida spp results in proper penetration of the antimicrobial agent, which is seen by the biofilm dispersion during 24 hours. Clindamycin does not interfere with the action of ketoconazole, but it would promote its anti- Candida activity and would possibly modify surface and EP structures through inhibition of the molecules that facilitate its expression. The in vivo model promotes the immunomodulatory activity that in vitro models do not. Its combined use in dual formulas would facilitate the antimicrobial activity on Candida spp, therefore working as an inhibitor or modifier of the biofilms after dispersion of the exopolymer matrix


Assuntos
Humanos , Feminino , Candidíase Vulvovaginal/microbiologia , Clindamicina/farmacologia , Cetoconazol/farmacologia , Infecções do Sistema Genital/microbiologia
4.
Artigo em Português | LILACS | ID: lil-737195

RESUMO

Introducción: Las biopelículas constituyen una de las formas de vida de los microorganismos (MOs). En las mucosas de mujeres sin y con infecciones endógenas, integran la microbiota normal y desarrolan patologías. Previamente hemos demostrado la participación de las mismas en las formas crónicas de las candidiasis vulvovaginales (CVV), la influencia de otros microorganismos en su conformación y evolución, en la vaginosis bacteriana (VB) y en las vaginitis aeróbicas (VA). Objetivo: Analyzar las biopelículas endocervicales en mujeres sin y con infecciones vaginales (IV), comparándolas con las BP vaginales. Métodos: Estudiamos 22 mujeres, 9 no embarazadas (NE) y 13 embarazadas (E). Cada paciente fue estudiada ginecológicamente y se tomó muestra vaginal (MV) con hisopo y muestra endocervical con citobrush (EC). Se realizó examen en fresco, determinación del pH y prueba de aminas. Ambas muestras fueron inoculadas en medios de cultivo adecuados. A cada muestra se efetuó la coloración de Gram y se realizó la capa celular sobre el dispositivo de vidrio (DV) para el estudio de las BP. Los DV se colocaron en caldo Saboureaud. Todas las muestras se incubaron a 35ºC durante 20-24 horas. Resultados: Encontramos 9 mujeres sin patologia y con microbiota normal (MN) y 13 con infecciones vaginales (IV): vaginosis bacteriana (VB)-6(4E); candidiasis vulvovaginal (CVV)-4(3E); vaginitis y microbiota intermedia (VMI)-3(1E). Conclusion: Llama la atención la formación de BP de Enterococcus y otras especies de Streptococcus y Satphylococcus en el EC de mujeres con IV en cuyas MV no se observan ni se recuperan significativamente estos microorganismos. En las mujeres con MN las BP de cocos Gram-positivos podrían representar un riesgo notable para el desarrolo de ITGS en el momento de efectuar maniobras intrumentales.


Introduction: The biofilm is one lefe form of microorganisms (MOs). On mucous membranes of women without and with endogenous infections, they are part of the normal microbiota and cause pathologies. We have demonstrated previously the participation of biofilms in chronic forms of vulvovaginal candidiasis (VVC), the influence of other microorganisms in its formation and evolution, in bacterial vaginosis (BV) and aerobic vaginitis (AV) . Objective: To analyze the endocervical biofilms in women with or without vaginal infections (VI) comparing them with vaginal biofilms. Methods: We studied 22 women, 9 non-pragnant (NP) and 13 pregnant (P). Each patient was gynecologically evaluated, and a vaginal sample (VS) was taken with an aspersorium and an endocervical sample was taken with cytobrush (CB). We performed a fresh examination, pH determination and amine test. Both samples were inoculated in suitable culture medium. After each one, Gram staining and optical microscopy with crystal violet were performed for the study of BF. These were put into Saboureaud broth. All samples were incubated at 35º for 20-24 hours. Results: We have discovered 9 women without pathology and with normal microbiota (NM) and 13 with vaginal infections (VI); bacterial vaginosis (BV)-6 (4P); vulvovaginal candidiasis (VVC)-4 (3P); vaginitis and intermediate microbiota (IMB)-3 (IE). Conclusion: Something that called our attention was that the formation of biofilms of Enterococcus and other species of Streptococcus and Satphylococcusin the cytobrush of women with vaginal infections in whose vaginal samples these microorganisms were not observed nor recovered significantly. In the women with normal microbiota, the biofilms that have Gram-positive cocci can also represent a notable risk in the moment of performing instrumental procedures.


Assuntos
Humanos , Feminino , Gravidez , Adulto Jovem , Pessoa de Meia-Idade , Biofilmes , Colo do Útero , Infecções Sexualmente Transmissíveis , Vagina , Mulheres
5.
Rev. Hosp. El Cruce ; (13): 19-23, 20121030.
Artigo em Espanhol | LILACS, BINACIS | ID: biblio-948254

RESUMO

INTRODUCCIÓN: Los biofilms son colecciones de microorganismos sésiles rodeadas de una matriz extracelular (exopolisacáridos) que ellos mismos generan. Se hallan de alguna manera, involucrados en la mayoría de los procesos infecciosos. La capacidad de generar biofilm por parte de algunos microorganismos sobre la superficie de las lentes de contacto (LC), dan a esta estructura un lugar relevante en la prevención de queratitis bacterianas en usuarios de lentes de contacto. OBJETIVO: Nuestro objetivo fue evidenciar cualitativamente, de manera reproducible mediante técnicas sencillas, el desarrollo de biofilm bacteriano sobre la superficie de lentes de contacto hidrofílicas usadas. METODOLOGÍA: Se realizó un estudio prospectivo descriptivo, utilizando 17 lentes de contacto hidrofílicas usadas (LCHU) sobre las cuales se evaluó el desarrollo de biofilm de Pseudomonas aeruginosa (ATTC 27853). RESULTADO: Se evidenció la formación de biofilm a las 8 horas de incubación, siendo más evidente a las 10 horas. Los resultados se evaluaron mediante microscopia óptica, de difracción y confocal. CONCLUSIÓN: El reconocimiento del biofilm como responsable de procesos infecciones oculares, entre ellos, las queratitis bacterianas en usuarios de lentes de contacto, posibilita la búsqueda de enfoques novedosos para su tratamiento y prevención.


INTRODUCTION: Biofilms are collections of microorganisms surrounded by a sessile extracellular matrix (exopolysaccharides) generate by themselves. They are involved in most of infectious processes. The ability to generate biofilm by some microorganisms on the surface of contact lenses, gives to bioflim structure an important rol in the prevention of bacterial keratitis in contact lens wearers. OBJECTIVE: Our objective was to show the development of bacterial biofilm on the surface of hydrophilic contact lenses. METHODS: We performed a prospective descriptive study, we evaluated the development of biofilm by Pseudomonas aeruginosa (ATTC 27853) on the surface of 17 hydrophilic contact lenses. After 8 hour of incubation, the formation of biofilm was cleared observed and became more evident 2 hour later. CONCLUSION:The results were evaluated by optical, diffraction and confocal microscopy.


Assuntos
Biofilmes , Lentes de Contato Hidrofílicas , Fenômenos Microbiológicos
6.
Rev. panam. infectol ; 10(1): 8-12, ene.-mar. 2008. tab
Artigo em Espanhol | LILACS | ID: lil-526096

RESUMO

La detección precoz de la infección por Chlamydia trachomatis (CT) asintomática (70-75%) reduce la incidencia de complicaciones, sobre todo las relacionadas a la infertilidad y esterilidad en ambos sexos siendo relevante en las mujeres. Objetivos: Conocer la prevalencia de CT en la población asintomática de jóvenes y adolescente (JA) de la ciudad de Córdoba (Argentina); evaluar los factores de riesgo y proponer un programa de detección adecuado a nuestro medio. Métodos: Se estudiaron, entre enero de 2004 y enero de 2006, 427 JA de ambos sexos entre 18 y 24 años (221 estudiantes universitarios (GU) y 206 adolescentes no universitarios (GNU) con nivel socio económico bajo). Se realizó PCR en orina con dos técnicas: plásmido y proteína de la membrana externa de CT; cultivo en líneas celulares para las muestras positivas; y tratamiento de los individuos positivos y control posterior. Resultados: La prevalencia global fue 8,7% (37/427) siendo mayor en las mujeres (13,7% vs. 4,1%; p = 0.0004), en el GNU (13.1 vs. 4.5%; p = 0.001) y en aquellos con las necesidades básicas (NB) insatisfechas (14.8% vs. 6.1%; p = 0.0006). No hubo diferencias significativas (DS) con respecto al comportamiento sexual y al uso de diferentes métodos anticonceptivos. Los antecedentes previos de exudado vaginal o uretral y adenomegalias inguinales tuvieron un elevado valor predictivo negativo (93,01% y 94,2%, respectivamente). Conclusiones: Es recomendable efectuar tamizaje de jóvenes en diferentes escenarios con técnicas sensibles. Los programas basados en los factores de riesgo son inadecuados en nuestro medio. La información y la educación general y sexual deben ser consideradas herramientas imprescindibles para controlar esta infección.


Assuntos
Adolescente , Adulto , Chlamydia trachomatis , Fatores de Risco , Infecções por Chlamydia/diagnóstico , Infecções por Chlamydia/prevenção & controle , Infecções por Chlamydia/terapia , Estudos Transversais
9.
Prensa méd. argent ; 94(6): 374-377, ago. 2007.
Artigo em Espanhol | LILACS | ID: lil-503981

RESUMO

Considering the incidence of neonatal sepsis we can observe that group B streptococcus emerged as the predominant pathogen. Studies of prevention of neonatal infection have focused on gropu B streptococcus because of its greater prevalence.


Assuntos
Humanos , Recém-Nascido , Infecções Estreptocócicas/epidemiologia , Infecções Estreptocócicas/prevenção & controle , Infecções Estreptocócicas/terapia , Perinatologia , Streptococcus agalactiae , Sepse/epidemiologia , Vacinas Estreptocócicas/uso terapêutico
16.
Antimicrob Agents Chemother ; 48(7): 2538-43, 2004 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-15215106

RESUMO

The anti-inflammatory activities of three quinolones, levofloxacin, moxifloxacin, and gatifloxacin, were investigated with an in vitro model of transendothelial migration (TEM). Human umbilical vein endothelial cells (HUVEC) were seeded in Transwell inserts, treated with serial dilutions of antibiotics, infected with Chlamydia pneumoniae, or stimulated with tumor necrosis factor alpha (TNF-alpha). Neutrophils or monocytes were also preincubated with serial dilutions of each antibiotic. TEM was assessed by light microscopic examination of the underside of the polycarbonate membrane, and levels of interleukin-8 (IL-8) and monocyte chemotactic protein 1 (MCP-1) were measured by enzyme-linked immunosorbent assay. In HUVEC infected with C. pneumoniae or stimulated with TNF-alpha, all fluoroquinolones significantly decreased neutrophil and monocyte TEM, compared to antibiotic-free controls. Moxifloxacin and gatifloxacin produced a significant decrease in IL-8 in C. pneumoniae-infected and TNF-alpha-stimulated HUVEC; however, moxifloxacin was the only fluoroquinolone that produced a significant decrease in MCP-1 levels under both conditions. Results from this study indicate similarities in the anti-inflammatory activities of these fluoroquinolones, although no statistically significant decrease in chemokine secretion was observed when levofloxacin was used. Mechanisms of neutrophil and monocyte TEM inhibition by fluoroquinolone antibiotics are unknown but may be partially due to inhibition of IL-8 and MCP-1 production, respectively.


Assuntos
Anti-Infecciosos/farmacologia , Chlamydia , Células Endoteliais/citologia , Fluoroquinolonas/farmacologia , Fagócitos/efeitos dos fármacos , Pneumonia Bacteriana/patologia , Fator de Necrose Tumoral alfa/farmacologia , Compostos Aza/farmacologia , Movimento Celular/efeitos dos fármacos , Quimiocinas/biossíntese , Células Endoteliais/efeitos dos fármacos , Gatifloxacina , Humanos , Levofloxacino , Monócitos/efeitos dos fármacos , Moxifloxacina , Neutrófilos/efeitos dos fármacos , Ofloxacino/farmacologia , Quinolinas/farmacologia , Estimulação Química , Veias Umbilicais/citologia , Veias Umbilicais/patologia
19.
DST j. bras. doenças sex. transm ; 15(2): 39-44, 2003. tab, graf
Artigo em Espanhol | LILACS | ID: lil-357435

RESUMO

Avaliaçäo em mulheres grávidas a eficácia da determinaçäo vaginal de ph e a prova de aminas - PA como método de orientaçäo diagnóstica, e o tratamento oral da VB com amoxicilina ácido clavulanico - AMC, para reduçäo dos efeitos adversos.


Assuntos
Humanos , Feminino , Adulto , Infecções Sexualmente Transmissíveis , Vaginose Bacteriana , Obstetrícia
20.
J Infect Dis ; 185(11): 1631-6, 2002 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-12023769

RESUMO

This study investigated the potential anti-inflammatory activity of 3 macrolide antibiotics, clarithromycin, roxithromycin, and azithromycin, in an in vitro model of transendothelial migration (TEM). Human umbilical vein endothelial cells (HUVECs) were seeded in Transwell inserts, treated with serial dilutions of the antibiotics, and infected with Chlamydia pneumoniae or stimulated with tumor necrosis factor (TNF)-alpha. In HUVECs infected with C. pneumoniae or stimulated with TNF-alpha, both azithromycin and roxithromycin caused significant decreases in neutrophil and monocyte TEM, compared with antibiotic-free controls. Clarithromycin had no detectable effect in either group. Azithromycin caused significant decreases in interleukin (IL)-8 and monocyte chemotactic protein (MCP)-1, whereas roxithromycin significantly decreased IL-8. This study indicates heterogeneity in the anti-inflammatory activity of these antibiotics. Mechanisms of monocyte and neutrophil TEM inhibition by azithromycin and roxithromycin are unclear but may be partially due to inhibition of IL-8 and MCP-1 production.


Assuntos
Antibacterianos/farmacologia , Movimento Celular/efeitos dos fármacos , Chlamydophila pneumoniae/fisiologia , Endotélio Vascular/microbiologia , Monócitos/fisiologia , Neutrófilos/fisiologia , Células Cultivadas , Quimiocina CCL2/metabolismo , Infecções por Chlamydophila/microbiologia , Endotélio Vascular/citologia , Endotélio Vascular/efeitos dos fármacos , Humanos , Interleucina-8/metabolismo , Macrolídeos , Fator de Necrose Tumoral alfa/farmacologia
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