Inyungu zihishe za nikotine: zidasobanutse neza ubwenge bwongera ubwenge?
Nikotine, ibintu abantu bakunda kandi banga, kuva kera yabambwe ku nkingi yisoni mubuzima. Mu myumvire ya rubanda, ifitanye isano rya bugufi n'amagambo ateye ubwoba nka kanseri y'ibihaha n'indwara z'umutima. Ariko inyuma yiyi myumvire yumukara-n-umweru, umuryango wubumenyi urimo kwerekana ikintu gitangaje: nikotine ubwayo irashobora kuba idasobanutse neza byongera ubwenge.
Iyo dushyize ku ruhande ibintu byangiza itabi tukareba nikotine yonyine, tuzasanga ingaruka zayo mu bwonko zigoye cyane kuruta uko twabitekerezaga. Nikotine irashobora kunyura vuba kuri bariyeri yubwonko bwamaraso hanyuma igahuza reseptor ya acetylcholine mubwonko. Ubu buryo bwibikorwa birasa nkaho ihame ryibiyobyabwenge bya Alzheimer. Ubushakashatsi bwerekanye ko nikotine ishobora guteza imbere cyane kwitabwaho, kwibuka gukora no guhinduka. Ibyavuye mu bushakashatsi birahindura ubumenyi bwa siyanse kuri nikotine.
Mu bushakashatsi bw’ubuvuzi, nikotine yerekanye ubushobozi bwo kuzamura indwara zifata ubwonko nk’indwara ya Parkinson n'indwara ya Alzheimer. Ibibyimba bya nikotine byakoreshejwe mu kuvura ubumuga bworoheje bwubwenge kandi byagaragaje ingaruka nziza mugutezimbere kwibuka nibikorwa byubuyobozi. Igitangaje kurushaho ni uko nikotine yanagaragaje ibimenyetso byoroheje ku barwayi bafite ikibazo cyo kutitonda cyane (ADHD).
Ariko kwiyongera kwa nikotine ni inkota y'amaharakubiri. Ibiyobyabwenge byayo ntibishobora kwirengagizwa. Gukoresha igihe kirekire birashobora gutuma umuntu ahinduka muburyo bwo kwiyumvisha ibintu no kwishingikiriza. Uku kwishingikiriza ntigaragarira gusa kurwego rwa physiologique, ariko kandi bigira ingaruka zikomeye kumyitwarire yumukoresha ndetse nimyitwarire.
Hamwe niterambere ryihuse ryubumenyi nikoranabuhanga, dukeneye gutekereza neza hamwe nubushobozi bwo kumenya neza kuruta mbere hose. Ingaruka zo kongera ubwenge bwa Nikotine zadukinguriye umuryango mushya, ariko uburyo bwo gukoresha neza izo ngaruka biracyasaba ubushakashatsi bwimbitse no kugenzura neza. Ahari ejo hazaza, tuzabona uburyo bwo kuzana ibyiza bya nikotine no kwirinda ingaruka zabyo, kugirango iki kintu kitasobanutse neza gishobora gukorera abantu ubwenge.