Ke\u010f\u017ee u\u017e\u00edvame drogy, \u010di u\u017e zlo\u010dinci alebo inak, pr\u00edroda ich takmer tie\u017e berie. Nepriamy dopad nie je priamy a ak ste vinn\u00ed z u\u017e\u00edvania drog, nie je ni\u010d, za \u010do by ste mali by\u0165 zodpovedn\u00ed; je to v\u0161ak nie\u010do, \u010do by sa malo bra\u0165 do \u00favahy pri snahe o zachovanie na\u0161ich divok\u00fdch oblast\u00ed. Lieky sa m\u00f4\u017eu dosta\u0165 do na\u0161ich vodn\u00fdch tokov v d\u00f4sledku chor\u00f4b sp\u00f4soben\u00fdch odpadov\u00fdmi vodami (pam\u00e4t\u00e1te si na probl\u00e9m s koka\u00ednov\u00fdm \u00fahorom v Lond\u00fdne?) a maj\u00fa najr\u00f4znej\u0161ie \u00fa\u010dinky na fl\u00f3ru a faunu, napr\u00edklad ako dopam\u00edn sp\u00f4sobil baby boom Daphnia magna. \u010ci u\u017e je jasn\u00e9, \u017ee farmaceutick\u00e9 zne\u010dis\u0165uj\u00face l\u00e1tky s\u00fa faktorom, zost\u00e1va ot\u00e1zkou, ako prisp\u00f4sobuj\u00fa postihnut\u00e9 ekosyst\u00e9my?<\/p>\n
Nov\u00e1 \u0161t\u00fadia publikovan\u00e1 v \u010dasopise Ecosphere sa rozhodla jednoducho odpoveda\u0165 na t\u00fato ot\u00e1zku: v pr\u00edpade rakov, ktor\u00e9 vyzeraj\u00fa obzvl\u00e1\u0161\u0165 dobre, by mohli by\u0165 pln\u00e9 antidepres\u00edv. Liekom, na ktor\u00fd sa zamerali, bol citalopram, selekt\u00edvny inhib\u00edtor sp\u00e4tn\u00e9ho vychyt\u00e1vania seroton\u00ednu (SSRI) pou\u017e\u00edvan\u00fd na lie\u010dbu depresie a z\u00e1chvatov paniky. Pou\u017e\u00edva sa na celom svete, \u010do z neho rob\u00ed k\u013e\u00fa\u010dov\u00e9ho kandid\u00e1ta na farmaceutick\u00e9 zne\u010distenie.<\/p>\n
Skupina pracovala na \u0161t\u00fadii Caryho in\u0161tit\u00fatu ekosyst\u00e9mov\u00fdch \u0161t\u00fadi\u00ed s pou\u017eit\u00edm 20 umel\u00fdch potokov naplnen\u00fdch vodou, kame\u0148mi a listami, ktor\u00e9 u\u017e boli kolonizovan\u00e9 \u0161\u0165avnat\u00fdm kokteilom mikr\u00f3bov, bezstavovcov a rias, aby vytvorila ve\u013emi atrakt\u00edvne prostredie na tr\u00e1vnat\u00fdch porastoch. Tieto umel\u00e9 potoky boli potom priraden\u00e9 ku ka\u017ed\u00e9mu zo \u0161tyroch re\u017eimov: samotn\u00fd citalopram, citalopram s rakmi, samotn\u00e9 raky a kontrola, do ktorej neboli zaveden\u00e9 \u017eiadne raky ani citalopram. Ka\u017ed\u00fd z potokov obsahuj\u00facich raky mal troch dospel\u00fdch samcov a potoky kontrolovan\u00e9 citalopramom dost\u00e1vali mal\u00e9 d\u00e1vky ka\u017ed\u00fd druh\u00fd de\u0148, aby napodobnili objem farmaceutick\u00e9ho zne\u010distenia predpokladan\u00e9ho v mestsk\u00fdch riekach a potokoch.<\/p>\n
V\u00fdskumn\u00edci merali kysl\u00edk, teplotu a prenikanie \u013eahkej vody, ako aj mno\u017estvo rias. Ide o be\u017en\u00e9 pr\u00edznaky fungovania ekosyst\u00e9mu v pr\u00edrode, tak\u017ee by pozorovate\u013eom mali odhali\u0165, ko\u013eko syntetick\u00fdch pr\u00fadov sa zmenilo za ur\u010dit\u00fdch podmienok.<\/p>\n
Citalopram z rakov. V\u00fdskumn\u00edci pou\u017eili umel\u00e9 pr\u00fady na testovanie niektor\u00fdch situ\u00e1ci\u00ed.
\n\u010ealej som tu chytil raky. Po dvoch t\u00fd\u017ed\u0148och vypch\u00e1vania pridelen\u00fdch potokov dostali raky za \u00falohu opusti\u0165 bezpe\u010dn\u00e9 miesto a presk\u00fama\u0165 dve n\u00e1dr\u017ee oddelen\u00e9 prep\u00e1\u017ekou, z ktor\u00fdch jedna bola premenen\u00e1 na jednu parfumovan\u00fa sardinkov\u00fdm \u017eel\u00e9 a druh\u00e1 na jednu parfumovan\u00fa s pomocou in\u00e9ho raka.<\/p>\n
Merali, ako dlho trvalo, k\u00fdm ka\u017ed\u00fd rak \u00faplne opustil n\u00e1dr\u017e, ako aj to, ako dlho str\u00e1vil na sten\u00e1ch n\u00e1dr\u017ee s vo\u0148av\u00fdmi sardinkami alebo rakmi.<\/p>\n
Zistilo sa, \u017ee raky vystaven\u00e9 citalopramu boli odv\u00e1\u017enej\u0161ie ako tie, ktor\u00e9 neboli vystaven\u00e9 citalopramu, a trvalo im krat\u0161ie sa prebudi\u0165 z ostra\u017eitosti pri h\u013eadan\u00ed zauj\u00edmav\u00fdch pachov. Tie\u017e ich v\u00fdrazne viac l\u00e1kali jedl\u00e1 ako in\u00e9 raky a tr\u00e1vili v tejto \u010dasti n\u00e1dr\u017ee trikr\u00e1t viac \u010dasu. T\u00ed, ktor\u00ed teraz neboli vystaven\u00ed citalopramu, boli pri sk\u00faman\u00ed v\u00e1havej\u0161\u00ed a potvrdili, \u017ee si nevyberaj\u00fa ani jedlo, ani pachy, pri\u010dom sk\u00famaniu ka\u017ed\u00e9ho z pachov venovali rovnak\u00fd \u010das.<\/p>\n
\u201cMenej \u010dasu str\u00e1ven\u00e9ho schov\u00e1van\u00edm sa a viac \u010dasu h\u013eadan\u00edm potravy m\u00f4\u017ee sp\u00f4sobi\u0165, \u017ee raky bud\u00fa n\u00e1chylnej\u0161ie na pred\u00e1torov, \u010do znamen\u00e1, \u017ee m\u00f4\u017eu by\u0165 zjeden\u00e9.\u201d<\/span>, \u201eToto je skvel\u00fd \u00faspech,\u201c povedal vo vyhl\u00e1sen\u00ed hlavn\u00fd autor \u0161t\u00fadie Alexander Reisinger, odborn\u00fd asistent na floridskej \u0161kole.<\/p>\n Samotn\u00e9 potoky nepotvrdili zn\u00e1mky zmeny v pr\u00edtomnosti citalopramu; je v\u0161ak pravdepodobn\u00e9, \u017ee zmenen\u00e9 spr\u00e1vanie rakov pod vplyvom citalopramu by mohlo ma\u0165 \u0161ir\u0161ie d\u00f4sledky.<\/p>\n \u201cPo iba dvoch t\u00fd\u017ed\u0148och reklamy na citalopram sme zaznamenali v\u00fdrazn\u00e9 zmeny v spr\u00e1van\u00ed rakov.\u201d<\/span>, \u201cMenej rakov m\u00f4\u017ee vies\u0165 k zn\u00ed\u017eeniu popul\u00e1ci\u00ed r\u00fdb, ktor\u00e9 ich konzumuj\u00fa, ako s\u00fa pstruhy, morsk\u00e9 ostrie\u017ee a sumce,\u201c vysvetlil Reisinger. \u201eZmeny v kvitnut\u00ed rias alebo ich rot\u00e1cii by zmenili hladinu kysl\u00edka a dynamiku \u017eiv\u00edn \u2013 k\u013e\u00fa\u010dov\u00e9 charakteristiky fungovania pohybu, ktor\u00e9 m\u00f4\u017eu sp\u00f4sobi\u0165 \u0161kodliv\u00fa nerovnov\u00e1hu v syst\u00e9me.\u201c<\/p>","protected":false},"excerpt":{"rendered":" Lagostins expostos aos antidepressivos de sua atmosfera se comportam com mais ousadia uma vez que tomamos rem\u00e9dios, criminosos ou qualquer outro, a natureza quase toma tamb\u00e9m. O impacto indireto n\u00e3o \u00e9 direto e, se voc\u00ea merece usar drogas, n\u00e3o h\u00e1 nada para se considerar respons\u00e1vel, no entanto, \u00e9 algo que deve ser levado em considera\u00e7\u00e3o […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-29","post","type-post","status-publish","format-standard","category-mundo"],"_links":{"self":[{"href":"https:\/\/noticias-gerais.online\/sk\/wp-json\/wp\/v2\/posts\/29","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/noticias-gerais.online\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/noticias-gerais.online\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/noticias-gerais.online\/sk\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/noticias-gerais.online\/sk\/wp-json\/wp\/v2\/comments?post=29"}],"version-history":[{"count":0,"href":"https:\/\/noticias-gerais.online\/sk\/wp-json\/wp\/v2\/posts\/29\/revisions"}],"wp:attachment":[{"href":"https:\/\/noticias-gerais.online\/sk\/wp-json\/wp\/v2\/media?parent=29"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/noticias-gerais.online\/sk\/wp-json\/wp\/v2\/categories?post=29"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/noticias-gerais.online\/sk\/wp-json\/wp\/v2\/tags?post=29"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}