{"id":10871,"date":"2024-01-23T12:09:59","date_gmt":"2024-01-23T12:09:59","guid":{"rendered":"https:\/\/olmix.com\/new-biomarkers-for-exposure-to-fumonisins-in-chickens\/"},"modified":"2024-02-12T10:13:07","modified_gmt":"2024-02-12T10:13:07","slug":"de-nouveaux-biomarqueurs-de-lexposition-aux-fumonisines-chez-le-poulet","status":"publish","type":"post","link":"https:\/\/olmix.com\/fr\/de-nouveaux-biomarqueurs-de-lexposition-aux-fumonisines-chez-le-poulet\/","title":{"rendered":"De nouveaux biomarqueurs de l\u2019exposition aux fumonisines chez le poulet ?"},"content":{"rendered":"[vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb constrain_group_4=\u00a0\u00bbyes\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; 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icon_padding=\u00a0\u00bb0px\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb icon_fontawesome=\u00a0\u00bbfa fa-clock-o\u00a0\u00bb icon_size=\u00a0\u00bb15&Prime; margin_right=\u00a0\u00bb7px\u00a0\u00bb margin_top=\u00a0\u00bb1px\u00a0\u00bb][vc_column_text]<span class=\"span-reading-time rt-reading-time\"><span class=\"rt-label rt-prefix\">Reading Time:<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb top_padding=\u00a0\u00bb2%\u00a0\u00bb constrain_group_1=\u00a0\u00bbyes\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbpadding-2-percent\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bbleft\u00a0\u00bb left_margin=\u00a0\u00bb7px\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbadvanced\u00a0\u00bb border_left_desktop=\u00a0\u00bb1&Prime; column_border_color=\u00a0\u00bb#269756&Prime; column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text el_class=\u00a0\u00bbmed\u00a0\u00bb]<b>La toxicit\u00e9 des fumonisines (FUM) est associ\u00e9e au blocage des c\u00e9ramide synthases (CerS), qui affecte l&rsquo;\u00e9quilibre des sphingolipides comme la sphinganine (Sa) et la sphingosine (So) dans les cellules.<\/b><span style=\"font-weight: 400;\"> Tandis que Sa s&rsquo;accumule dans les cellules, le niveau de So est compens\u00e9, affectant ainsi le ratio Sa:So qui est utilis\u00e9 comme biomarqueur de l&rsquo;exposition aux fumonisines chez de nombreuses esp\u00e8ces.<\/span>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb top_padding=\u00a0\u00bb2%\u00a0\u00bb constrain_group_1=\u00a0\u00bbyes\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text]<span style=\"font-weight: 400;\">Cependant, <\/span><b>les m\u00e9canismes compensatoires pour maintenir le niveau de c\u00e9ramides dans les cellules<\/b><span style=\"font-weight: 400;\"> rendent non pertinente l&rsquo;utilisation de ce biomarqueur dans certaines \u00e9tudes (en fonction du niveau et de la dur\u00e9e d&rsquo;exposition). Justement, dans cette \u00e9tude, <\/span><b>le ratio Sa:So n&rsquo;a pas \u00e9t\u00e9 significativement affect\u00e9 dans le plasma des poulets expos\u00e9s aux fumonisines<\/b><span style=\"font-weight: 400;\">. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Toutefois, une <\/span><b>analyse compl\u00e8te<\/b> <b>des diff\u00e9rentes classes de sphingolipides<\/b><span style=\"font-weight: 400;\"> a r\u00e9v\u00e9l\u00e9 que le ratio des formes phosphat\u00e9es de Sa et So (Sa1P:So1P) \u00e9tait significativement augment\u00e9 par l&rsquo;administration de fumonisines. Ce r\u00e9sultat est coh\u00e9rent avec des r\u00e9sultats pr\u00e9c\u00e9dents sugg\u00e9rant que le ratio Sa1P:So1P est un meilleur biomarqueur de l\u2019exposition aux fumonisines dans le plasma que le ratio Sa:So. Des effets similaires des fumonisines ont \u00e9t\u00e9 observ\u00e9s en fonction de la taille de la cha\u00eene carbon\u00e9e des c\u00e9ramides. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Une augmentation significative du ratio C22-C24:C16 a \u00e9t\u00e9 observ\u00e9e dans le plasma. Bien que les m\u00e9canismes \u00e0 l&rsquo;origine de ces effets ne soient pas encore compris, ce r\u00e9sultat sugg\u00e8re que les <\/span><b>ratios des sphingolipides C22-C24:C16, en conjonction avec le ratio Sa1P:So1P, pourraient \u00eatre de bons candidats pour r\u00e9v\u00e9ler l&rsquo;exposition aux fumonisines dans le plasma de poulet, \u00e0 des doses n\u2019ayant eu aucun effet sur le ratio Sa\u00a0:So<\/b><span style=\"font-weight: 400;\">.<\/span>[\/vc_column_text][image_with_animation image_url=\u00a0\u00bb6291&Prime; image_size=\u00a0\u00bbfull\u00a0\u00bb animation_type=\u00a0\u00bbentrance\u00a0\u00bb animation=\u00a0\u00bbNone\u00a0\u00bb animation_movement_type=\u00a0\u00bbtransform_y\u00a0\u00bb hover_animation=\u00a0\u00bbnone\u00a0\u00bb alignment=\u00a0\u00bb\u00a0\u00bb border_radius=\u00a0\u00bbnone\u00a0\u00bb box_shadow=\u00a0\u00bbnone\u00a0\u00bb image_loading=\u00a0\u00bbdefault\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb max_width_mobile=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text]<em><span style=\"font-weight: 400;\">Figure : <\/span><\/em><i><span style=\"font-weight: 400;\">Analyses discriminantes (PLS-DA) des sphingolipides dans le plasma de poulets nourris avec un r\u00e9gime t\u00e9moin exempt de mycotoxines ou contenant environ 15 mg de FUM\/kg pendant 14 ou 21 jours.<\/span><\/i>[\/vc_column_text][vc_column_text]<i><span style=\"font-weight: 400;\">R\u00e9f\u00e9rence : Lassallette E., Nyvall-Collen P., Guerre P., Targeted sphingolipidomics indicates increased C22-C24:16 ratios of virtually all assayed classes in liver, kidney, and plasma of fumonisin-fed chickens. Ecotoxicology and Environmental Safety 268 (2023) 115697. <\/span><\/i><a href=\"https:\/\/doi.org\/10.1016\/j.ecoenv.2023.115697\" target=\"_blank\" rel=\"noopener\"><i><span style=\"font-weight: 400;\">https:\/\/doi.org\/10.1016\/j.ecoenv.2023.115697<\/span><\/i><\/a><i><span style=\"font-weight: 400;\">\u00a0<\/span><\/i>[\/vc_column_text][divider line_type=\u00a0\u00bbFull Width Line\u00a0\u00bb line_thickness=\u00a0\u00bb1&Prime; divider_color=\u00a0\u00bbaccent-color\u00a0\u00bb custom_height=\u00a0\u00bb20&Prime;][vc_column_text]<b>Vous \u00eates int\u00e9ress\u00e9 par les travaux de cette \u00e9quipe de recherche sur les effets des fumonisines chez le poulet\u00a0?<\/b><span style=\"font-weight: 400;\"> Jetez un coup d&rsquo;\u0153il \u00e0 leur <a href=\"http:\/\/Vous \u00eates int\u00e9ress\u00e9 par les travaux de cette \u00e9quipe de recherche sur les effets des fumonisines chez le poulet ? Jetez un coup d'\u0153il \u00e0 leur \u00e9tude pr\u00e9c\u00e9dente sur l'accumulation de FUM dans le foie et les muscles du poulet, et sur la fa\u00e7on dont la technologie Algoclay d\u2019Olmix peut la r\u00e9duire.\" target=\"_blank\" rel=\"noopener\">\u00e9tude pr\u00e9c\u00e9dente<\/a> sur l&rsquo;<\/span><b>accumulation de FUM dans le foie et les muscles du poulet, et sur la fa\u00e7on dont la technologie Algoclay d\u2019Olmix peut la r\u00e9duire<\/b><span style=\"font-weight: 400;\">.<\/span>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime; background_hover_color_opacity=\u00a0\u00bb1&Prime; column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; width=\u00a0\u00bb1\/1&Prime; tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text]\n[\/vc_column_text][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"<p>[vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb constrain_group_4=\u00a0\u00bbyes\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3&Prime; gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb shape_type=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1&Prime;&#8230;<\/p>\n","protected":false},"author":1,"featured_media":9473,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[438,439],"tags":[],"class_list":["post-10871","post","type-post","status-publish","format-standard","has-post-thumbnail","category-myconews-fr","category-animal-care-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>De nouveaux biomarqueurs de l\u2019exposition aux fumonisines chez le poulet ? - Olmix<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez de nouveaux biomarqueurs pour \u00e9valuer l&#039;exposition aux fumonisines chez le poulet. 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