Kuthiwani Uma I-Nicotine Ingase Ikhishwe Ubuthi? Ukuhlola Kwesayensi

Lapho abantu bezwa igama elithi “nicotine,” abaningi balihlobanisa ngokushesha nokulutheka, ugwayi, nokulimaza impilo. Sekungamashumi eminyaka, i-nicotine yenziwe “njengesigebengu” esibangela izifo ezihlobene nokubhema. Nokho, izingxoxo zesayensi eminyakeni yamuva ziye zavula umbuzo omusha nothakazelisayo: Kuthiwani uma i-nicotine ingase ikhishwe?

Ingabe le nto, evame ukuba namademoni, ingachazwa kabusha futhi inikezwe indima entsha emphakathini wesintu?

Ukuqonda I-Nicotine: Ngaphandle Kokucwaswa

I-Nicotine iyi-alkaloid eyenzeka ngokwemvelo etholakala ikakhulukazi ezitshalweni zikagwayi. Yaziwa kakhulu ngezakhiwo zayo zokulutha, njengoba yenza i-nicotinic acetylcholine receptors ebuchosheni isebenze, ivuse ukukhululwa kwe-dopamine. Lo mshini uyisizathu esiyinhloko esenza ukubhema kuwumkhuba ongaka.

Nokho, i-nicotine ngokwayo injalo hhayi imbangela eqondile yomdlavuza noma izifo eziningi ezihlobene nokubhema. Izingozi eziningi zempilo zivela ezinkulungwaneni zamakhemikhali anobuthi akhiqizwa ngesikhathi sokusha ugwayi - i-tar, i-carbon monoxide, i-nitrosamines, nokuningi. Ngamanye amazwi, i-nicotine iyalutha, kodwa akusona ukuphela kwecala elidala idumela eliyingozi lokubhema.

Kusho Ukuthini "Ukuqeda I-Nicotine"?

“Ukukhipha ubuthi be-nicotine” akusho ukususa isimo sayo esiluthayo ngobusuku obubodwa. Kunalokho, ibhekisela emandleni amabili esayensi:

• Ukuguqulwa kwamangqamuzana: Ukushintsha ukwakheka kwamakhemikhali e-nicotine ukuze kuncishiswe noma kuqedwe amandla ayo okulutha, kuyilapho kugcinwa imiphumela enenzuzo yomzimba (njengokuthuthukisa ukuqapha, ukuthuthukisa isimo sengqondo, noma ukusekela ukuqonda).
• Ukulethwa emisha: Ukuthuthukisa amasistimu amasha akhulula i-nicotine ngendlela elawulwayo, engashi, nephephile - isibonelo, izikhwama ze-nicotine, ama-transdermal patches, noma izihogela - kuyilapho ugwema imikhiqizo eyingozi.

Yini Engashintsha Uma I-Nicotine Iba Ingenangozi?

Uma isayensi yenze ngempumelelo i-nicotine “ingenabo ubuthi” ngomqondo ojwayelekile, kungase kwenzeke izinguquko eziningi ezijulile:

• Umthelela wezempilo yomphakathi: Izifo ezihlobene nokubhema (umdlavuza wamaphaphu, i-COPD, ukuphazamiseka kwenhliziyo) zingancishiswa kakhulu, njengoba ingozi yangempela isemikhiqizweni evuthayo.
• Izimo zengqondo zomphakathi: I-Nicotine ingase ishintshe ekubeni ibonakale “njengembi” iye ekufakweni kusigaba esifana ne-caffeine - isivuseleli esisebenzayo esinezingozi, kodwa esilawulekayo ngesayensi.
• Amandla ekhemisi: Ucwaningo seluvele luphakamisa ukuthi i-nicotine ingase ibe namandla okwelapha ezifweni ze-neurodeergenerative ezifana ne-Parkinson noma i-Alzheimer's. I-nicotine ekhishwe ubuthi ingaba yindlela entsha yokuthuthukiswa kwezidakamizwa.
• Inguquko yezimboni: Izinkampani zikagwayi zingase zishintshe ngokuphelele zibe izinkampani zesayensi yokuphila, zigxile emikhiqizweni ye-nicotine yesizukulwane esilandelayo ephephile, esezingeni elifanele, futhi enenzuzo imbala.

Ubufakazi Besayensi: Ingabe Siseduze?

Ucwaningo oluningana seluvele lukhomba ezindimeni eziyinkimbinkimbi ze-nicotine zezinto eziphilayo:

• I-Metabolism & ukuguga: Ucwaningo oluvela e-Chinese Academy of Sciences (eshicilelwe ku Isayensi Ethuthukisiwe, 2023) ibonise ukuthi i-nicotine yomlomo ithuthukise ukuhamba kanye namandla e-metabolism kumagundane asebekhulile, ngokwengxenye ngokuzinzisa i-gut microbiota kanye nokuthuthukisa i-NAD⁺ metabolism.
• Impilo yengqondo: Olunye ucwaningo (lushicilelwe ku Ukuxhumana Kwemvelo, 2023) ibonise ukuthi umthamo ophansi we-nicotine ungabuyisela ibhalansi ye-NAD⁺ futhi yehlise ukwehla kwengqondo okuhlobene neminyaka kumagundane.

Lokhu okutholakele akusho ukuthi i-nicotine “iphephile” namuhla, kodwa iqokomisa amandla ayo lapho ihlukaniswa nentuthu kagwayi futhi iphathwa ngaphansi kokulawulwa kwesayensi.

Izinselele Ezingaphambili

Ngisho noma ukukhipha ubuthi kungenzeka ngobuchwepheshe, kusele izithiyo ezimbalwa:

• Izingozi zokulutheka: Ukunciphisa ukuncika ngaphandle kokuqeda imiphumela enenzuzo ye-nicotine kuwukulinganisela okuthambile.
• Izinhlaka zokulawula: Ohulumeni kuzodingeka banqume ukuthi bangayihlukanisa kanjani “i-nicotine elungisiwe” — njengomuthi, isengezo sokudla, noma into entsha ngokuphelele.
• Umbono womphakathi: Ukushintsha isithombe se-nicotine sisuke “esidakamizweni esiyingozi” siye “se-molecule esebenzayo elawulwayo” kudinga isikhathi, imfundo, kanye nokubeka izinto obala.

Umbono Ngekusasa

Cabanga ngekusasa lapho i-nicotine ingaseyona into efanayo yokulimaza, kodwa inhlanganisela elawulwa ngokucophelela njenge-caffeine. Abantu bangayisebenzisa ngefomethi ephephile - izikhwama, ama-patches, noma izithasiselo ezisebenzayo - ngenjongo yokuqapha, ukugxila, noma ukwelapha, ngaphandle kwezingozi zezempilo ezilimazayo ezihlobene nokubhema.

Uma ukukhishwa kwe-nicotine kuphumelela, kungase kumise kabusha izimboni, kuphonsele inselelo amabala ahlala isikhathi eside, futhi kuvule amathuba amasha kokubili kwezokwelapha nempilo yomthengi.

Kodwa into eyodwa icacile: isayensi, hhayi ukumaketha, kufanele ihole.