GAA: Ƙara Basirar Ƙwaƙwalwa? Sakamakon Gwaji na Makonni 6 Ya Bayyana

GAA (guanidinoacetic acid) aƙalla ana sayar da shi a matsayin ƙara basira, amma yanzu ya samu gwajin ɗan adam na farko da ya kai ga ƙarshe. A cikin wani gwaji mai ɗaukar makonni 6, an yi nazari a kan matasa 58 masu lafiya. An ga ɗan saurin amsawa a wasu lokuta da alamun saukaka damuwa, amma kusan dukkan sauran gwaje‑gwajen kwakwalwa ba su nuna tasiri ba. Alamar aminci ta yi kyau, amma gwajin ya ƙunshi mutane kaɗan, an yi shi a matsayin bincike na farko, kuma babu rukuni da ya karɓi creatine kaɗai. Ga abin da aka gano a zahiri, wanene zai iya amfana da shi, da dalilin da ya sa hukuncin ke da ruɗani.

Menene GAA, kuma me ya sa ake yawaita yabansa?

GAA shi ne ɗan matakin da ke cikin hanyar samar da creatine a jikinmu. A cikin ɓangaren gabatarwa na binciken an ambaci wasu karatu da suka nuna cewa GAA na iya ƙara yawan creatine a kwakwalwa fiye da creatine monohydrate (CrM). Wannan ikirari ne da ke ƙarfafa talla a matsayin brain booster. Amma yana da mahimmanci a fahimci cewa ƙaruwa a matakin creatine ba lallai ne ya haifar da ƙarin tunani ba, kuma marubuta sun bayyana a sarari cewa tasirin sa a kan aikin kwakwalwa har yanzu ba a san shi ba. Wannan gwaji an shirya shi ne domin fara amsa wannan tambaya.

Yadda aka gudanar da binciken

Ƙungiyar masu bincike, ƙarƙashin jagorancin Richard Kreider a Laboratory of Exercise & Sport Nutrition, Jami'ar Texas A&M, ta shirya gwaji mai randomized, double‑blind, parallel‑group. An zaɓi mutane 58 masu lafiya (mata 33, matsakaicin shekaru 35.5). A tsawon makonni 6, mahalarta sun sha ɗayan ɗayan abubuwa uku:

• Placebo – maltodextrin, sau biyu × 6 g a rana
• GAA – sau biyu × 1 g a rana (jimlar 2 g) da kuma sau biyu × 5 g placebo
• GAA + creatine monohydrate – 2 g GAA + sau biyu × 5 g CrM a rana (jimlar 10 g)

Kafin da bayan ƙara, an ɗauki samfurin jini a zaman azumi, sannan an yi gwaje‑gwajen tunani da tambayoyi kan yanayin zuciya, damuwa, barci, da ingancin rayuwa. An riga an yi rijistar gwajin da lambar ISRCTN68542582.

Sakamakon da ya fi jan hankali: saurin amsawa

Abin da ya zamanto mafi burgewa shi ne saurin amsawa. GAA kadai ya nuna alamar haɓaka a gabaɗayan reaction time da kusan 242 ms, amma bambancin ba shi da ƙarfi sosai (‑533 zuwa 50 ms, p = 0.10). A matsayin alamar kididdiga, wannan kawai alama ce, ba tabbacin tasiri ba.

A nazarin interaction effect – wato bambanci tsakanin rukuni da lokaci idan aka kwatanta da placebo – an samu tasiri mai mahimmanci a kan gabaɗayan saurin amsawa (‑330 ms, p = 0.031) da kuma saurin amsawar “YES” (‑290 ms, p = 0.004). Wasu muhimman sassa biyu – reaction time da YES accuracy a kan recalled‑correct – sun kusan kai ga mahimmanci (p = 0.078 da p = 0.084). Marubuta sun kammala da cewa an ga ci gaba a ƙwaƙwalwar tuna labaran magana da saurin dawo da su.

Kariya: yawancin gwaje‑gwajen ba su nuna wani tasiri ba

A sauran gwaje‑gwajen ba a sami bambanci ba. Baya ga Delayed Picture Recognition Task, Digit Vigilance Task, Corsi Block Task, da Stroop Color‑Word Task, ba a ga wani tasiri na GAA ba. Wadannan gwaje‑gwajen suna auna ƙwaƙwalwar gani, kulawa mai ɗorewa, tunani sarari, da ikon sarrafa kansa. Marubuta sun amince da rashin daidaito a sakamakon idan aka kwatanta GAA da placebo kai tsaye. Saboda haka GAA ba ya ƙara basira a fannin tunani gabaɗaya; abin da ya faru shi ne ɗan tasiri a wasu gwaje‑gwajen saurin amsawa.

Yanayin zuciya, damuwa, barci, da ingancin rayuwa

Sakamakon na biyu ya kasance ɗan mixed bag, kuma mafi yawan su suna cikin “na kusan mahimmanci” (p tsakanin 0.05‑0.10):

• Motsi na jiki – rukuni na GAA ya ba da rahoton ƙarin lokaci a motsa jiki idan aka kwatanta da placebo.
• Damuwa – GAA ya rage darajar Perceived Stress Scale (p = 0.036) da kuma tunanin cewa matsaloli na ƙaruwa (p = 0.053). Marubuta sun ɗauki wannan a matsayin ƙaruwa a lafiyar tunani.
• Barci – an ambaci “tasiri masu kyau da kuma waɗanda ka iya zama marasa so” a kan ingancin barci, ba tare da cikakken bayani ba.
• Ingancin rayuwa – GAA ya rage gajiya (p = 0.068) kuma ya ba da ƙimar lafiyar rayuwa a matsayin “mai kyau” (p = 0.092). Rukuni na GAA + CrM ya ba da rahoton ƙarin matsaloli kamar ɓarnatar ƙafa (p = 0.053), amma kuma ya ba da ƙarin farin ciki a rayuwa (p = 0.081) da ƙasa da damuwa ko baƙin ciki (p = 0.066).

A takaice, wasu ɗan ƙaramin nasara na bazuwar lokaci na iya fitowa, amma ba za a iya ɗaukar waɗannan sakamako na biyu a matsayin tabbatattu ba.

Binciken aminci

A bangaren aminci, gwajin bai nuna wata alamar cuta ba. Babu bambanci a cikin alamomin jini ko a cikin rahoton kurakurai da mahalarta suka bayar a tsakanin rukuni a tsawon makonni 6.

Iyakoki da abubuwan da ya kamata a sani

Wannan karamar kafa ce ta bincike. Da mutane 58 da aka raba zuwa rukuni uku, ƙarfin ƙididdiga ya kasance ƙanƙanta, kuma yawan gwaje‑gwajen da aka yi ya ƙara haɗarin samun sakamakon ƙarya. Wasu manyan sakamako dai alamu ne kawai. Mahalarta matasa ne masu lafiya da motsa jiki, don haka ba za a iya faɗi cewa sakamakon zai aiki ga tsofaffi, masu cutar tunani, ko marasa lafiya ba. Gwajin ya ɗauki makonni 6 kacal.

Game da tallafi, an sami goyon bayan WoodNext Foundation, ƙungiya da ba ta sayar da kayan gina jiki ko creatine ba. Babban marubuci Richard Kreider ya dade yana binciken creatine kuma yana zama memba a Scientific Advisory Board na AlzChem, kamfanin da ke kera creatine monohydrate da GAA. Takardar ta sanar da wannan dangantaka, kuma an ce an samu cikakken bincike daga jami’an jami’a. Sai a lura da irin wannan yanayi.

Abubuwan aiki na gaskiya

• Matsakaicin ƙima da aka gwada: 2 g GAA a rana (ana raba zuwa guda biyu na 1 g), ko tare da 10 g creatine monohydrate (guda biyu na 5 g), tsawon makonni 6. Takaitaccen labari ba ya ba da shawarar tsawon lokacin amfani.
• Waɗanda za su iya sha'awa: matasa masu lafiya da motsa jiki da ke son gwada sabbin ƙari, idan sun fahimci cewa shaida tana cikin matakin farko.
• Waɗanda ya kamata su guje ko su tuntuɓi likita: ba a bayar da bayanai kan yara, mata masu ciki ko masu shayarwa, manya masu tsufa, ko masu cutar koda/wasu yanayi na lafiya ba; don haka ba a ba da izini ga waɗannan rukunin ba. Kowane mutum da ke ɗauke da wasu magunguna ko yanayi na lafiya ya kamata ya tuntuɓi likita kafin ya fara amfani da GAA.
• Saitin tsammani: kada a yi zato za a ga ƙaruwa a kowane fanni na tunani. Sakamakon na iya nuna ƙaramin haɓaka a saurin amsawa da wasu alamu na jin daɗi, ba a haɓaka ƙwaƙwalwar tuna ko mai da hankali ba.
• Zabin araha: gwajin ba ya ba da damar kwatanta GAA da creatine monohydrate kai‑kawai, saboda babu rukuni na creatine kai‑kawai. Rukuni na GAA + CrM ya sanya wahala a bambanta tasirin kowanne sinadari.

Hukunci

GAA ba a tabbatar da shi a matsayin ƙara basira ba. Binciken ya nuna alamar yiwuwar haɓaka a saurin amsawa, ya tabbatar da aminci a gajeren lokaci, kuma ya ga wasu alamu na rage damuwa da ingancin rayuwa. Amma ya kuma nuna cewa mafi yawan gwaje‑gwajen tunani ba su motsa ba. Kamar yadda marubuta suka yi nuni, akwai buƙatar ƙarin bincike kafin a yanke hukunci ƙarshe. A halin yanzu, GAA ƙari ne da ake tunani da shi, ba cikakken brain booster ba.