Byagenda bite niba Nikotine ishobora kwangirika? Ubushakashatsi bwa siyansi

Iyo abantu bumvise ijambo "nikotine," benshi bahita babihuza nibiyobyabwenge, itabi, nibibi byubuzima. Mu myaka ibarirwa muri za mirongo, nikotine yashizweho nk '“umugome” inyuma y’indwara ziterwa n’itabi. Nyamara, ibiganiro bya siyansi mumyaka yashize byafunguye ikibazo gishya kandi gishimishije: Byagenda bite niba nikotine ishobora kwangirika?

Ese iyi ngingo, akenshi yatewe n'abadayimoni, irashobora gusobanurwa ndetse ikanahabwa uruhare rushya muri societe yabantu?

Gusobanukirwa Nikotine: Kurenga agasuzuguro

Nikotine ni alkaloide isanzwe iboneka cyane mu bimera by'itabi. Irazwi cyane kubera ibiyobyabwenge, kuko ikora reseptor ya nicotinic acetylcholine mu bwonko, bigatuma dopamine irekurwa. Ubu buryo nimpamvu yambere ituma itabi riba ingeso.

Nyamara, nikotine ubwayo ni ntabwo arimpamvu itaziguye ya kanseri cyangwa indwara nyinshi ziterwa no kunywa itabi. Ibyinshi mu byangiza ubuzima biva mu bihumbi by’imiti y’ubumara ikorwa mugihe cyo gutwika itabi - tar, monoxide carbone, nitrosamine, nibindi byinshi. Mu yandi magambo, nikotine irabaswe, ariko ntabwo ari yo nyirabayazana wonyine unywa itabi ryica.

“Kwangiza Nikotine” bisobanura iki?

“Kurandura nikotine” ntibisobanura gukuraho kamere yabaswe nijoro. Ahubwo, bivuga uburyo bubiri bwa siyansi:

• Guhindura molekulari: Guhindura imiti ya nikotine kugirango igabanye cyangwa ikureho ubushobozi bwayo bwo kwizizirwa, mugihe ugumana ingaruka zifatika zifatika (nko kongera ubwenge, kunoza imyumvire, cyangwa gushyigikira ubumenyi).
• Gutanga udushya.

Niki cyahinduka niba Nikotine yarabaye mubi?

Niba siyanse yarakoze neza nikotine "idafite uburozi" mubisanzwe, impinduka nyinshi zimbitse zishobora kubaho:

• Ingaruka ku buzima rusange: Indwara ziterwa no kunywa itabi (kanseri y'ibihaha, COPD, indwara z'umutima n'imitsi) zishobora kugabanuka cyane, kubera ko akaga nyako kari mu gutwika ibicuruzwa.
• Imyumvire y'abaturage: Nikotine irashobora kuva mubonwa nka "vice" igashyirwa mubyiciro nka cafeyine - itera imbaraga hamwe ningaruka, ariko igacungwa na siyanse.
• Ubushobozi bwa farumasi: Ubushakashatsi bumaze kwerekana ko nikotine ishobora kugira ubushobozi bwo kuvura indwara zifata ubwonko nka Parkinson cyangwa Alzheimer. Nicotine yanduye ishobora guhinduka inzira nshya yo guteza imbere ibiyobyabwenge.
• Impinduramatwara: Uruganda rwitabi rushobora guhinduka rwose mubigo byubumenyi bwubuzima, byibanda kubisekuru bizaza nibicuruzwa bya nikotine bifite umutekano, bisanzwe, ndetse nibyiza.

Ibimenyetso bya siyansi: Turi hafi?

Ubushakashatsi bwinshi bumaze kwerekana uruhare runini rwa nikotine:

• Metabolism & gusaza: Ubushakashatsi buvuye mu Ishuri Rikuru ry'Ubushinwa (ryasohotse muri Ubumenyi buhanitse.
• Ubuzima bwo kumenya: Ubundi bushakashatsi (bwatangajwe muri Itumanaho rya Kamere, 2023) yerekanye ko nikotine ikabije ishobora kugarura uburinganire bwa NAD⁺ no kugabanya kugabanuka kwubwenge bijyanye n'imbeba.

Ibyavuye mu bushakashatsi ntibisobanura ko nikotine “ifite umutekano” muri iki gihe, ariko irerekana ubushobozi bwayo iyo itandukanijwe n’umwotsi w’itabi kandi igakoreshwa na siyansi.

Ibibazo biri imbere

Nubwo kwangiza bishobora kuba tekiniki, inzitizi nyinshi zisigaye:

• Ingaruka zo kwizizirwa: Kugabanya kwishingikiriza utiriwe ukuraho ingaruka nziza za nikotine nuburinganire bworoshye.
• Inzego zigenga: Guverinoma zizakenera guhitamo uburyo bwo gushyira "nikotine yahinduwe" - nk'umuti, inyongeramusaruro, cyangwa ikintu gishya rwose.
• Imyumvire rusange: Guhindura ishusho ya nikotine kuva "ibiyobyabwenge byangiza" ukayihindura "molekile ikora igenzurwa" bisaba igihe, uburezi, no gukorera mu mucyo.

Glimpse mubihe bizaza

Tekereza ejo hazaza aho nikotine itakiri kimwe no kugirira nabi, ahubwo ikomatanyirizwa hamwe nka cafeyine. Abantu barashobora kuyikoresha muburyo butekanye - pouches, ibishishwa, cyangwa inyongera zikora - mugukangurira, kwibanda, cyangwa intego zo kuvura, nta ngaruka mbi z’ubuzima ziterwa no kunywa itabi.

Niba ibiyobyabwenge bya nikotine bigenze neza, birashobora kuvugurura inganda, guhangana n’agasuzuguro kamaze igihe, kandi bigafungura uburyo bushya haba mu buvuzi ndetse n’ubuzima bw’umuguzi.

Ariko ikintu kimwe kirasobanutse: siyanse, ntabwo kwamamaza, igomba kuyobora inzira.