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Vitamin D and Traumatic Brain Injury: A Systematic Review of Preclinical Evidence Jaslindo, Lieka Nugrahi; Sari, Widia; Dhuha, Alief; Handayani, Kurnia Maidarmi; Khudri, Ghaniyyatul Nugrahi; Maribeth, Annisa Lidra
Health and Medical Journal Vol. 8 No. 1 (2026): HEME January 2026
Publisher : Universitas Baiturrahmah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33854/heme.v8i1.2096

Abstract

Traumativ Brain Injury (TBI) triggers multiple secondary injury processes, such as inflammation, oxidative stress, apoptosis, BBB disruption, and impaired autophagy. These mechanisms contribute to progressive neuronal damage and functional decline. Vitamin D has emerged as a potential multi-target neuroprotective agent due to its regulatory roles in immune signaling, oxidative balance, neuronal survival, and autophagy pathways. This systematic review synthesized preclinical evidence evaluating the effects of Vitamin D supplementation in animal models of TBI. A comprehensive search of PubMed, OVID, and ProQuest identified six eligible studies. Across diverse dosing regimens and formulations, Vitamin D consistently improved key TBI outcomes. Reported benefits included reduced apoptosis, decreased neuroinflammation, attenuation of oxidative stress, preservation of BBB integrity, restoration of autophagy flux, and enhanced cognitive performance. Mechanistically, Vitamin D influenced several pathways, including Nrf2 activation, TLR4/MyD88/NF-κB suppression, mTOR and TRPM2 normalization, and improved microglial polarization. Although methodological quality varied, most studies demonstrated moderate rigor and supported the neuroprotective actions of Vitamin D. Heterogeneity in injury models, dosing strategies, and outcome measures limits direct comparison and highlights the need for standardized experimental approaches. Overall, current preclinical evidence indicates that Vitamin D confers robust neuroprotection following TBI. Further studies examining its mechanistic pathways, optimal therapeutic windows, and translational potential are warranted to inform future clinical applications.
Pengaruh Pemberian Vitamin D terhadap Kadar Kreatinin Darah pada Tikus dengan Diabetes Melitus Tipe 2 Prajadina, Inkha; Dhuha, Alief; Sari, Widia; Hansah, Rendri Bayu; Adelin, Prima
Health and Medical Journal Vol. 8 No. 2 (2026): HEME May 2026
Publisher : Universitas Baiturrahmah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33854/heme.v8i2.2277

Abstract

Latar Belakang : Diabetes melitus tipe 2 adalah kondisi hiperglikemia, dan resistensi insulin, sehingga dapat menyebabkan kerusakan fungsi ginjal. Indikator kerusakan fungsi ginjal adalah peningkatan kreatinin dalam darah.Vitamin D memiliki reseptor pada pankreas dan ginjal. Tujuan: Penelitian ini bertujuan untuk mengetahui pengaruh kadar vitamin D terhadap kadar kreatinin darah pada tikus dengan DM tipe 2. Metode: Jenis penelitian ini adalah Experimental In Vivo, dengan rancangan posttest control group design. Penelitian menggunakan 25 ekor tikus putih jantan (Rattus norvegicus) dibagi menjadi 5 kelompok perlakuan yaitu, kelompok A (kontrol), kelompok B (pakan standar + vitamin D 415 IU/hari), kelompok C (DM tanpa vitamin D), kelompok D (DM + vitamin D 415 IU/hari), serta kelompok E (DM + vitamin D 1.100 IU/hari). Data dianalisis menggunakan SPSS. Hasil: Hasil penelitian menunjukkan terdapat perbedaan secara signifikan kadar vitamin D (p=<0,05) yaitu antara kelompok E (DM + vitamin D 1.100 IU) dibandingkan kelompok A (kontrol) (p=0,003). Pada kadar kreatinin didapatkan perbedaan secara signifikan (p=<0,05) pada kelompok B (tidak DM+vitamin D 415 IU) dibandingkan kelompok C (DM tanpa vitamin D) (p=0,007). Tidak terdapat korelasi secara signifikan antara kadar vitamin D terhadap kadar kreatinin darah (p=0,798). Kesimpulan: Terdapat pengaruh pemberian vitamin D terhadap kadar kreatinin. Tidak ada korelasi antara kadar vitamin D terhadap kadar kreatinin.