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Nicotinamide Riboside Nggedhekake NAD+ Kapindho Nanging Gagal Nambah Memori

Nova Chen · · 4 min read
#supplements #clinical trial #nad+ #nicotinamide riboside #mild cognitive impairment #alzheimers #cerebral blood flow

Angka Iki Katingal Apik, Nanging Hasil Memori Ora

Bayangna suplemen sing tenanan nindakake apa sing ditulis ing labelé: nambahaké tingkat molekul penting sing dibutuhaké sel. Banjur, cek apa peningkatan iki bener‑bener nambahaké fungsi sing dadi alesan utama kita tuku suplemen. Ing kasus iki, jawabané ora.

Kaya ngono sing kedadéan ing uji coba fase‑II pilot paling anyar babagan nicotinamide riboside (NR) marang wong tuwa sing kena amnestic mild cognitive impairment (aMCI). Studi iki dipimpin déning Martens lan konco‑koncone, lan diterbitaké ing Alzheimer's & Dementia taun 2026. NAD+ ing getih munggah kapindho, nanging kognisi ora nambah.

Apa Sing Ditindakake Peneliti?

Tim peneliti nganakake uji coba pilot 12 minggu, double‑blind, randomised, lan nganggo kontrol plasebo. Tujuane kanggo ndelok apa NR, prekursor NAD+, isa nambah fungsi kognitif lan cerebral blood flow (CBF) ing wong diwasa sing nduwèni aMCI. aMCI iku varian mild cognitive impairment sing spesifik ngaruhi memori lan nduwèni risiko luwih dhuwur kanggo Alzheimer.

Motivasine cukup umum: NAD+ minangka pusat metabolisme energi sel, lan sawetara studi nuduhaké yèn penurunan NAD+ bisa nambah risiko Alzheimer. Mula, ngasilaké NAD+ sing cukup diduga bakal nglindhungi otak sing umure tambah.

Patang puluh loro peserta ngrampungaké uji coba: 22 ing kelompok NR lan 20 ing kelompok plasebo.

Hasil Sak Cilik

  • NAD+ getih: Munggah kira‑kira kapindho ing kelompok NR. Suplemen nglakoni apa sing dikarepake ing tingkat biokimia.
  • Fungsi kognitif (outcome utama): Ora ana perbaikan sing signifikan.
  • Aliran getih otak total (outcome sekunder): Ora ana perubahan.
  • Tekanan darah (outcome sekunder): Ora ana perubahan.
  • Keamanan lan kepatuhan: Tingkat kepatuhan padha antarane kelompok, lan ora ana efek samping serius.

Kesimpulan penulis cetha: NR bisa mundhakaké NAD+ ing wong kanthi MCI, nanging ora nambah fungsi kognitif, aliran getih otak total, utawa tekanan darah sajrone 12 minggu.

Petunjuk Hipokampus (Waspada)

Ana siji indikasi menarik. Analisis eksploratori nuduhaké kemungkinan nambah aliran getih regional, utamané ing hippocampus, wilayah sing erat hubungane karo memori lan dadi sing paling dhisik kena Alzheimer.

Nanging iki dudu bukti pungkasan. Analisis eksploratori mung digawe kanggo nyipta hipotesis, dudu outcome utama. Kanthi sampel cilik, sinyal kaya ngene gampang muncul amarga kebetulan. Penulis mung nyaranaké supaya studi sabanjuré nliti efek regional CBF kanthi durasi perawatan sing luwih dawa. Iki alesan kanggo terus nliti, ora alesan kanggo tuku.

Napa Nambah NAD+ Ora Sama karo Ndandani Otak?

Uji coba iki ngélingaké yèn owah‑owahan biomarker ora ateges asil klinis sing nambah. Nambah NAD+ kapindho mung nuduhaké yèn senyawa iki diserap lan dimetabolisme, nanging ora nuduhaké manawa perubahan mau kesampaian ing otak kanthi cara sing penting, utawa manawa NAD+ sing kurang pancen bottleneck ing penurunan kognitif peserta.

Mild cognitive impairment disebabaké déning macem‑macem proses sing tumpang tindih, kalebu akumulasi protein, perubahan vaskular, lan peradangan. Siji prekursor metabolik ora cukup kanggo ngowahi faktor‑faktor iki sajrone 12 minggu.

Watesan Jujur

Sadèrèngé sapa wae njupuk kesimpulan sing keliru saka studi iki, elinga watesane:

  • Iki pilot. Kanthi 42 peserta sing ngrampungake, studi iki dirancang kanggo ngukur keamanan, tolerabilitas, lan efikasi awal, dudu kanggo njawab pitakon utama.
  • 12 minggu iku cekak. Penurunan kognitif ing aMCI lumayan alon. Uji coba sing luwih dawa bisa ndelok efek sing ora katon ing periode iki, utawa malah ora.
  • Populasi tunggal. Hasil iki mung kanggo wong tuwa sing nduwèni aMCI. Ora bisa digeneralisasi kanggo wong sehat, enom, utawa kondisi liya.
  • Temuan eksploratori sifaté sementara. Sinyal aliran getih hippocampus kudu dikonfirmasi kanthi studi sing luwih gedhé.
  • Hasil negatif ora teges ora ana efek. Uji coba cilik bisa “lewat” manfaat sing modest, nanging ora ana sinyal ing outcome utama sing kudu dibudidaya.

Takeaway Praktis Kanggo Pembeli

Apa sing bisa ditindakake NAD+ booster: Ing uji coba iki, NR kanthi konsisten nambah NAD+ getih lan ditoleransi kanthi apik, tanpa efek samping serius.

Apa sing ora dituduhake studi iki: Ora ana bukti yèn NR nambah memori, kemampuan mikir, aliran getih otak total, utawa tekanan darah ing wong kanthi aMCI sajrone 12 minggu.

Dosis lan timing: Abstrak ora nyebutaké dosis sing dipigunakaké, lan uji coba ora ngarahake kanggo nliti wektu panggunaan. Priksa artikel lengkap kanggo regimen sing tepat sadurunge mbandhingake. Produk NR komersial nduwèni dosis macem‑macem, lan ora ana bukti ing kéné sing ndhukung dosis utawa jangka wektu tartamtu kanggo manfaat kognitif.

Sapa sing (ora) cocok: Yen sampeyan utawa kerabat nduwèni keluhan memori, studi iki ora menehi alesan kanggo nganggep NR minangka gantine evaluasi medis, pola urip sing wis kabukten, utawa perawatan sing wis disetujui. Sapa wae sing nduwèni MCI utawa ngonsumsi obat liya kudu rembugan dhisik karo dokter sadurunge miwiti suplemen.

Red flag pemasaran: Waspadalah marang produk sing ngandhakaké “nambah NAD+” minangka bukti keuntungan otak. Uji coba iki nuduhaké manawa loro klaim kuwi kapisah.

Kesimpulan

NR lulus tes biokimia nanging gagal ing tes memori, paling ora sajrone 12 minggu ing kelompok cilik aMCI. Petunjuk aliran getih hippocampus tetep mbukak lawang kanggo studi sing luwih dawa lan luwih gedhé. Saiki, pesen sing jujur yaiku NAD+ booster isa nambah NAD+, nanging apa iki bisa diterjemahaké dadi otak sing luwih apik isih durung kabukten.

Sumber: Martens et al. A phase‑II randomized controlled pilot study of nicotinamide riboside supplementation in older adults with amnestic mild cognitive impairment. Alzheimer's Dement. 2026. DOI: 10.1002/alz.71605 | PubMed 42478598

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.

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Written by

Nova Chen

Nova Chen writes for Biocracked: biohacking science, longevity & human performance.

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