Tag Archives: mecanismosderesistencia

[vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][nectar_animated_title heading_tag="h6" style="color-strip-reveal" color="Accent-Color" text="P r ó x i m a m e n t e"][vc_column_text]

Objetivo general:

Explicar los principales mecanismos de resistencia en cocos Gram positivos de relevancia clínica.

Objetivos específicos:

1. Describir los mecanismos de resistencia a betalactámicos, glicopéptidos y macrólidos, lincosamidas y estreptograminas de tipo B en Staphylococcus spp.


2. Explicar los mecanismos de resistencia a betalactámicos, glicopéptidos y aminoglucósidos en Enterococcus spp.


3. Identificar los mecanismos de resistencia frente a betalactámicos y fluoroquinolonas en Streptococcus pneumoniae.


4. Resumir los métodos fenotípicos de detección de los principales mecanismos de resistencia en Staphylococcus spp. y Enterococcus spp.

Duración: 8 semanas.

Carga horaria: 30 horas de estudio.

 

Facilitadora: Lcda. Carolina Macero

Bacteriólogo clínico.

 

¿Qué aprenderás con esta Guía de Micro?

• Aspectos microbiológicos del género Staphylococcus a considerar en la resistencia a los principales antibacterianos.


• Mecanismos de resistencia a betalactámicos, glicopéptidos, macrólidos, lincosamidas y estreptograminas de tipo B en Staphylococcus spp.


• Características del género Enterococcus de impacto clínico en la antibioticoterapia.


• Mecanismos de resistencia a betalactámicos, glicopéptidos y aminoglucósidos en Enterococcus spp.


• Mecanismos de resistencia frente a betalactámicos y fluoroquinolonas en Streptococcus pneumoniae .


• Métodos de detección fenotípicos utilizados en la investigación de los principales mecanismos de resistencia en especies de Staphylococcus y Enterococcus.

[/vc_column_text][/vc_column][/vc_row][vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][nectar_cta btn_style="see-through" heading_tag="h6" text_color="#000000" button_color="default" link_type="regular" alignment="center" display="block" text="Más Guías de Micro:" link_text="Principales mecanismos de resistencia en bacilos Gram negativos." url="https://wp.me/pe3bte-HT"][/vc_column][/vc_row]

[vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][nectar_animated_title heading_tag="h6" style="color-strip-reveal" color="Extra-Color-1" text="P r ó x i m a m e n t e"][vc_column_text]

Objetivo general:

Explicar los principales mecanismos de resistencia en bacilos Gram negativos de relevancia clínica.

Objetivos específicos:

1. Describir los mecanismos de resistencia frente a betalactámicos en especies de Enterobacterales.


2. Explicar los mecanismos de resistencia a aminoglucósidos y fluoroquinolonas en Enterobacterales.


3. Identificar los mecanismos de resistencia a betalactámicos en Pseudomonas aeruginosa .


4. Resumir los métodos fenotípicos de detección de los principales mecanismos de resistencia en Enterobacterales y P.aeruginosa .

Duración: 8 semanas.

Carga horaria : 30 horas de estudio.

 

Facilitadora: Lcda. Carolina Macero

Bacteriólogo clínico.

 

¿Qué aprenderás con esta Guía de Micro?

• Aspectos microbiológicos a considerar de las especies Enterobacterales con mayor importancia clínica, en la resistencia frente a los principales antibacterianos.


• Mecanismos de resistencia a betalactámicos, aminoglucósidos y fluoroquinolonas en Enterobacterales de impacto clínico.


• Aspectos microbiológicos de Pseudomonas aeruginosa en la resistencia a los principales antibacterianos.


• Mecanismos de resistencia frente a betalactámicos en Pseudomonas aeruginosa .


• Métodos fenotípicos utilizados en la detección de los principales mecanismos de resistencia en las especies de Enterobacterales más frecuentes y P.aeruginosa .

[/vc_column_text][/vc_column][/vc_row][vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][divider line_type="No Line" custom_height="60"][nectar_cta btn_style="see-through" heading_tag="h6" text_color="#000000" button_color="default" link_type="regular" alignment="center" display="block" text="Más Guías de Micro:" link_text="Mecanismos de resistencia en hongos de importancia clínica" url="https://wp.me/pe3bte-BV"][divider line_type="No Line" custom_height="20"][/vc_column][/vc_row][vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][vc_column_text]

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[vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][nectar_highlighted_text color_type="regular" style="full_text"]

Resistencia a ceftazidima/avibactam, meropenem/vaborbactam e imipenem/relebactam en bacilos gramnegativos MDR: mecanismos moleculares y pruebas de susceptibilidad.[/nectar_highlighted_text][/vc_column][/vc_row][vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][text-with-icon icon_type="font_icon" icon="icon-book" color="Accent-Color"]

Gaibani, P.; Giani, T.; Bovo, F.; Lombardo, D.; Amadesi, S.; Lazzarotto, T.; Coppi, M.; Rossolini, G.M.; Ambretti, S. Resistance to Ceftazidime/Avibactam,
Meropenem/Vaborbactam and Imipenem/Relebactam in Gram-Negative MDR Bacilli: Molecular Mechanisms and Susceptibility Testing. Antibiotics
2022, 11, 628. https://doi.org/ 10.3390/antibiotics11050628

[/text-with-icon][/vc_column][/vc_row][vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][vc_column_text]La resistencia a múltiples medicamentos (MDR) representa una grave amenaza global debido a la rápida propagación global y las limitadas opciones antimicrobianas para el tratamiento de infecciones difíciles de tratar (DTR). Recientemente, se han desarrollado nuevas combinaciones de β-lactámicos/inhibidores de β-lactamasa (βL-INH) para el tratamiento de infecciones por DTR debidas a patógenos gramnegativos MDR. Aunque los nuevos βL-INH mostraron actividades prometedoras in vitro e in vivo contra patógenos MDR, recientemente se han informado resistencias emergentes a estas nuevas moléculas. Esta resistencia se debe a varios mecanismos que incluyen deficiencias de porinas, aumento de la expresión de carbapenemasas y/o mutaciones enzimáticas. En esta revisión, se resumen los principales mecanismos relacionados con la resistencia a ceftazidima/avibactam, meropenem/vaborbactam e imipenem/relebactam en MDR. Los autores se enfocan en los mecanismos moleculares relacionados con la resistencia a estos nuevos fármacos, discuten sobre los principales métodos de detección y las pruebas de susceptibilidad de estos antimicrobianos.[/vc_column_text][/vc_column][/vc_row][vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][image_with_animation image_url="3198" animation="Fade In" hover_animation="none" alignment="" border_radius="none" box_shadow="none" image_loading="default" max_width="100%" max_width_mobile="default"][/vc_column][/vc_row][vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][nectar_cta btn_style="material" heading_tag="h6" text_color="#000000" link_type="regular" alignment="left" display="block" link_text="Artículo completo" url="https://www.mdpi.com/2079-6382/11/5/628"][/vc_column][/vc_row]

[vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][nectar_highlighted_text color_type="regular" style="full_text"]

Resistencia a betalactámicos en Pseudomonas aeruginosa : estado actual, perspectivas futuras

[/nectar_highlighted_text][/vc_column][/vc_row][vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][text-with-icon icon_type="font_icon" icon="icon-book" color="Accent-Color"]

Glen, K. A., & Lamont, I. L. (2021). β-lactam Resistance in Pseudomonas aeruginosa: Current Status, Future Prospects. Pathogens (Basel, Switzerland), 10(12), 1638. https://doi.org/10.3390/pathogens10121638

[/text-with-icon][vc_column_text]La resistencia a los betalactámicos es multifactorial y puede implicar cambios en una proteína diana clave (PBP3), la reducción de la captación o el aumento del flujo de salida de betalactámicos, la degradación de éstos por aumento de la expresión o alteración de la especificidad de sustrato de la β-lactamasa AmpC y otras enzimas cromosómicas en P. aeruginosa, o por la adquisición de β-lactamasas a través de la transferencia horizontal de genes, así como los cambios en la formación de biopelículas y el metabolismo.

Este artículo facilita la comprensión actual de estos mecanismos y discute las posibles estrategias para mejorar la eficacia de los antibióticos betalactámicos en el tratamiento de infecciones por P. aeruginosa.[/vc_column_text][image_with_animation image_url="2977" animation="Fade In" hover_animation="none" alignment="center" border_radius="none" box_shadow="none" image_loading="default" max_width="100%" max_width_mobile="default"][/vc_column][/vc_row][vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" background_color_opacity="1" background_hover_color_opacity="1" column_shadow="none" column_border_radius="none" column_link_target="_self" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" tablet_text_alignment="default" phone_text_alignment="default" column_border_width="none" column_border_style="solid" bg_image_animation="none"][nectar_cta btn_style="material" heading_tag="h6" link_type="regular" alignment="left" display="block" link_text="Artículo completo" url="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706265/"][/vc_column][/vc_row]