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1,000 mg Nicotinamide Riboside a Kullum Yana Kara NAD+ a Kwayoyin Jini Da Kusan 60 % a Manyan Mutane, Binciken Randomized Ya Gano

Dr. Synapse · · 5 min read

Gabatarwa

Nicotineamde riboside (NR) – wani nau’in bitamin B3 da jiki ke canza zuwa NAD+ – ya ja hankalin masu sha’awar tsawaita rayuwa. Binciken da aka gudanar a matsayin randomised, double‑blind, placebo‑controlled kuma aka wallafa a mujallar Nature Communications a shekarar 2018, ya kasance ɗaya daga cikin manyan gwaje‑gwajen ɗan adam da aka yi kan wannan sinadari. Tambayar da aka ba da ita a takaitacce: idan manya masu ƙoshin lafiya suka sha NR a kowace rana na makonni shida, shin yana da aminci, kuma yana ƙara matakin NAD+?

Amsa ce eh ga dukan tambayoyin. Binciken ya kuma nuna wasu alamu da ke jan hankali – kamar raguwar hauhawar jini da sassauta jijiyoyin jini – amma ba su da hujjojin da za su tabbatar da fa’ida a zahiri.

Me Yasa NAD+ Ke Da Muhimmanci Kuma Me Yasa Yake Raguwa Da Shekaru?

NAD+ (nicotinamide adenine dinucleotide) coenzyme ne da ke cikin kowanne ƙwaya, yana taka muhimmiyar rawa a ƙera makamashi, gyaran DNA, amsa ga damuwa, da kuma haɓaka wasu enzymes da aka sani da sirtuins. An danganta sirtuins da fa’idodin da ake samu daga rage kalori a gwaje‑gwajen dabbobi, inda aka ga suna taimakawa wajen tsawaita rayuwar dabbobi.

A nazarin dabbobi da wasu bayanai na ɗan adam, an gano cewa yawan NAD+ kan raguwa da shekaru. Dalilan da ake tunanin ke haifar da wannan raguwa sun haɗa da ƙaruwa a cin NAD+ ta enzymes kamar CD38 da PARPs, da kuma sauyin yadda ƙwayoyin ke ƙirƙirar NAD+. Har yanzu ba a gano cikakken hanyar da wannan ke faruwa a ɗan adam ba, kuma yawan raguwa yana bambanta daga mutum zuwa mutum. Amma manufar gwajin nan ita ce: idan NAD+ ya yi ƙasa, ƙara sinadari da jiki zai iya juya ya zama NAD+ zai iya taimakawa. NR ɗaya ne daga cikin waɗannan sinadarai.

Tsarin Gwaji

Binciken, da manyan masana daga Jami’ar Colorado Boulder suka jagoranta, ya yi amfani da tsarin 2 × 6‑week crossover (NCT02921659). Kowane mahalarta ya sha NR a wani zangon lokaci, sannan a wani zangon ya sha placebo – wato kowa ya zama ‘control’ ga kansa. Irin wannan tsari yana rage bambancin da ke tsakanin mutane kuma ya fi dacewa da gwaje‑gwajen da ba su da manyan adadi.

  • Ƙungiya: manya masu ƙoshin lafiya, shekaru 55‑79, matsakaicin BMI kusan 24.
  • Magani: nicotinamide riboside 500 mg sau biyu a rana (jimillar 1,000 mg a rana).
  • Kwatanta: placebo da aka yi daidai da shi.
  • Tsawon lokaci: makonni shida a kowane zagaye.
  • Rufe ido: double‑blind.

Rabon 1,000 mg a rana ya fi girma fiye da yawanci a gwaje‑gwajen da ke tantance yadda jiki ke ƙunsar sinadari, don haka an yi amfani da wannan ƙarfin a matsayin maƙasudin gwajin dogon lokaci.

Sakamakon Da Ya Banbanta: Kusan 60 % Ƙaruwa a NAD+

Abin da aka fi lura da shi shi ne NR ya tsaya sosai a jiki, kuma ya ƙara yawan NAD+ a cikin peripheral blood mononuclear cells (PBMCs) – wato ƙwayoyin garkuwar jini da aka ware daga jini – da kusan 60 % idan aka kwatanta da placebo.

Biyu daga cikin muhimman abubuwan da za a kula da su:

  1. PBMCs hanya ce kawai. Suna da sauƙin samuwa, amma ba su wakilta ƙashin tsoka, zuciya, kwakwalwa, ko hanta ba. Ɗaga NAD+ a ƙwayoyin jini na nufin an sha sinadarin kuma an yi amfani da shi, amma ba ya tabbatar da cewa NAD+ ya ƙaru a sauran sassan jiki, ko kuma cewa wannan ƙaruwa za ta haifar da tasiri a zahiri.
  2. Sakamako ne na sinadarai. Ɗaga NAD+ yana nuna an cimma manufar ƙara matakin sinadarin, amma ba ya nuni da wani ci gaba a lafiyar jiki.

Game da aminci, masu binciken sun ruwaito cewa shan wannan ƙima na tsawon lokaci ba ya haifar da wata matsala a wannan ƙungiya, wanda ke nuni da ƙarfafa sahihancin gwajin.

Alamomin Hauhawar Jini Da Sassauta Jijiyoyin Jini

Baya ga auna NAD+, masu binciken sun duba wasu alamomin da ke da alaka da cututtukan zuciya. Sassauta manyan jijiyoyi da ƙaruwa a hauhawar jini alamu ne na tsufar jijiyoyi kuma suna haifar da haɗarin cutar zuciya.

An ba da rahoton wasu canje‑canje kamar saukar hauhawar jini da ragin carotid‑femoral pulse wave velocity (PWV) – ma’aunin da aka saba amfani da shi don tantance sassauta aortic. Sai dai masu bincike sun bayyana cewa wannan gwaji ba a yi shi ba tare da cikakken ƙarfi da zai tabbatar da fa’ida ba; akwai buƙatar ƙarin gwaje‑gwaje a nan gaba don tantance ko NR zai iya rage hauhawar jini da sassauta jijiyoyi a manyan mutane.

Abubuwan Da Za a Iya Amfani Da Su A Gaskiya

  • A matakin sinadari, yana aiki kamar yadda ake buƙata. A 1,000 mg a rana, NR ya ƙara NAD+ a PBMCs da kusan 60 % a manya masu ƙoshin lafiya.
  • Kyakkyawan ɗaukar lokaci na gajeren lokaci. Makonni shida na 500 mg sau biyu a rana ba su haifar da wata matsala a wannan ƙungiya ba.
  • Kada a ɗauki sakamakon a matsayin ƙa’ida ga kowa. Sakamakon ya shafi samfuri, ƙimar, da rukunin da aka gwada. Ba ya nufin kowa da ke da cuta, ke shan magani, ko da ke cikin ciki zai samu wannan sakamako. Ka tattauna da likita kafin ka fara ƙara sinadarin.
  • Kalli alamomin jijiyoyi a matsayin zato. Sakamakon BP da PWV ba su ba da shaida ta ƙarshe ba, sai dai suna nuna bukatar ƙarin bincike.
  • Tabbatar da ingancin samfur. Tsabtar magani da ƙimar su kan bambanta, kuma ba lallai ne abin da aka yi amfani da shi a gwaji ba ne ake samu a kasuwa. Ka kuma duba ko akwai wani kamfani da ke da ruwa‑ruwa a binciken.

Iyakokin Gwaji

Wannan gwaji ƙanana ne, mai mayar da hankali kan kimiyyar halitta. Babban abin da aka auna su ne matakan sinadarai da ƙarfafa jiki, ba muhimman alamomi na lafiya ba kamar bugun zuciya, yawan jini, nakasa, ko mutuwa. Mahalarta su ne mutane masu ƙoshin lafiya, don haka sakamakon na iya bambanta ga waɗanda ke da kiba, cutar sukari, hauhawar jini, cutar koda, ko wasu cututtuka. Makonni shida ba su ba da bayanin tsawon lokaci ko aminci na shekaru da dama ba.

Har ila yau, ba za a iya fassara wannan bincike a matsayin hujja cewa ƙara NAD+ yana rage tsufa, tsawaita rayuwa, ko hana cuta ba. NR ba maganin tsufa ba ne, kuma wannan takarda ba ta yi ikirarin hakan ba.

Kammalawa

Binciken Nature Communications na 2018 matakin farko ne mai kyau: ya nuna a fili, tare da tsarin randomised, placebo‑controlled, cewa 1,000 mg a rana na NR yana ƙara NAD+ a ƙwayoyin garkuwar jini na manya masu ƙoshin lafiya kuma yana da aminci na makonni shida. Ko wannan zai haifar da sauƙin hauhawar jini, sassauta jijiyoyi, ko wani fa’ida mai ɗorewa ga lafiya, shine tambaya da za a amsa a cikin manyan gwaje‑gwaje masu tsawo a rukunin da za su fi amfana.

Original study

Read the original research on pubmed.ncbi.nlm.nih.gov →

This article summarizes published research for general information. It is not medical advice.

DS

Written by

Dr. Synapse

Dr. Synapse writes for Biocracked: biohacking science, longevity & human performance.

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