  {"id":45805,"date":"2023-01-17T11:18:46","date_gmt":"2023-01-17T16:18:46","guid":{"rendered":"https:\/\/umaine.edu\/medicine\/?post_type=tribe_events&#038;p=45805"},"modified":"2023-01-17T13:22:27","modified_gmt":"2023-01-17T18:22:27","slug":"do-some-over-the-counter-antimicrobials-do-more-harm-than-good-the-unexpected-cellular-and-mitochondrial-toxicity-of-triclosan-and-cetylpyridinium-chloride","status":"publish","type":"tribe_events","link":"https:\/\/umaine.edu\/medicine\/event\/do-some-over-the-counter-antimicrobials-do-more-harm-than-good-the-unexpected-cellular-and-mitochondrial-toxicity-of-triclosan-and-cetylpyridinium-chloride\/","title":{"rendered":"Do some over-the-counter antimicrobials do more harm than good? The unexpected cellular and mitochondrial toxicity of triclosan and cetylpyridinium chloride"},"content":{"rendered":"<p><strong>Speaker:&nbsp;<\/strong>Julie Gosse, Ph.D., Associate Professor of Biochemistry, University of Maine.<\/p>\n<p><strong>91¸£Àû the speaker:&nbsp;<\/strong>Postdoctoral training (2005-2007) Dartmouth Medical School.&nbsp; Ph.D. (2005) Cornell University<\/p>\n<p>Dr. Gosses&#8217;s research interests include biochemical, molecular, biophysical, and cellular toxicology and effects of toxicants on signal transduction pathways and mitochondria.<\/p>\n<p><b>91¸£Àû the seminar:<\/b> A wide swath of humanity is exposed to high concentrations of over-the counter (OTC) antimicrobials via numerous workplace, personal care product, and agricultural applications.&nbsp; Some of these drugs have been in use for decades, even for a century, and were \u201cgrandfathered in\u201d for continual use approval rather than ever being subject to scientific study of their toxicological effects on eukaryotes (including humans).&nbsp; Two of these chemicals include triclosan (TCS) and cetylpyridinium chloride (CPC).&nbsp; The benefits of any widespread, high dose chemical must be weighed with potential risks by gathering toxicology data.&nbsp; CPC may have additional beneficial effects beyond its known antibacterial properties, including anti-influenza and anti-SARS-CoV-2 activities.&nbsp; However, we have discovered adverse effects of both TCS and CPC, at low doses, on mammalian immune cell signaling and mitochondrial function.&nbsp; <i>Ironically, these antibacterial agents, employed to fight microbial disease, may inhibit immune function<\/i>.&nbsp; We have determined the effective dose ranges and underlying molecular mechanisms, which aid in prediction of toxic effects in other systems or with similarly-structured chemicals.&nbsp; Along with other researchers\u2019 data and a raft of epidemiological findings, this research led to the recent banning or removal from TCS from most consumer products.&nbsp; CPC is far less-studied than TCS and remains in numerous OTC products.&nbsp; We employ molecular, biochemical, and biophysical tools, including super-resolution fluorescence microscopy, to unravel the mechanisms by which these chemicals modulate immune cell and mitochondrial function.&nbsp; Our work provides insights into impacts on public health, and will point to either pharmacological uses for or toxic impacts of this ubiquitous chemicals.<\/p>\n<p>This event is free, but <a href=\"https:\/\/maine.zoom.us\/meeting\/register\/tZ0ldu2pqz0tGtOk2YTflcWI2xpciNbvOPdC\">registration<\/a> is required<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Speaker:&nbsp;Julie Gosse, Ph.D., Associate Professor of Biochemistry, University of Maine. 91¸£Àû the speaker:&nbsp;Postdoctoral training (2005-2007) Dartmouth Medical School.&nbsp; Ph.D. (2005) Cornell University Dr. Gosses&#8217;s research interests include biochemical, molecular, biophysical, [&hellip;]<\/p>\n","protected":false},"author":2116,"featured_media":0,"template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_tribe_events_status":"","_tribe_events_status_reason":"","_tribe_events_is_hybrid":"","_tribe_events_is_virtual":"","_tribe_events_virtual_video_source":"","_tribe_events_virtual_embed_video":"","_tribe_events_virtual_linked_button_text":"","_tribe_events_virtual_linked_button":"","_tribe_events_virtual_show_embed_at":"","_tribe_events_virtual_show_embed_to":[],"_tribe_events_virtual_show_on_event":"","_tribe_events_virtual_show_on_views":"","_tribe_events_virtual_url":"","footnotes":"","spc_primary_tribe_events_cat":0},"tags":[],"tribe_events_cat":[108],"class_list":["post-45805","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-seminar-series","cat_seminar-series"],"taxonomy_info":{"tribe_events_cat":[{"value":108,"label":"Seminar Series"}]},"featured_image_src_large":false,"author_info":{"display_name":"","author_link":"https:\/\/umaine.edu\/medicine\/author\/"},"comment_info":"","_links":{"self":[{"href":"https:\/\/umaine.edu\/medicine\/wp-json\/wp\/v2\/tribe_events\/45805","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/umaine.edu\/medicine\/wp-json\/wp\/v2\/tribe_events"}],"about":[{"href":"https:\/\/umaine.edu\/medicine\/wp-json\/wp\/v2\/types\/tribe_events"}],"author":[{"embeddable":true,"href":"https:\/\/umaine.edu\/medicine\/wp-json\/wp\/v2\/users\/2116"}],"version-history":[{"count":6,"href":"https:\/\/umaine.edu\/medicine\/wp-json\/wp\/v2\/tribe_events\/45805\/revisions"}],"predecessor-version":[{"id":45861,"href":"https:\/\/umaine.edu\/medicine\/wp-json\/wp\/v2\/tribe_events\/45805\/revisions\/45861"}],"wp:attachment":[{"href":"https:\/\/umaine.edu\/medicine\/wp-json\/wp\/v2\/media?parent=45805"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/umaine.edu\/medicine\/wp-json\/wp\/v2\/tags?post=45805"},{"taxonomy":"tribe_events_cat","embeddable":true,"href":"https:\/\/umaine.edu\/medicine\/wp-json\/wp\/v2\/tribe_events_cat?post=45805"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}