Background: Alzheimer's disease (AD) is a neurodegenerative disorder marked by brain inflammation resulted in structural damage and brain dysfunction. Tumor necrosis factor α (TNFα) is a cytokine that plays an important role in inflammation. Dates fruit may help to fight oxidative stress and inflammation in the brain. Objective: To determine the effect of date fruit extracts on blood TNFα levels and brain weight of alzheimer’s model rats. Methods: This research is a laboratory experimental study by post-test only with control group design using alzheimer model rats. This study used 6 treatment groups with simple randomization. Each treatment group was represented by 8 Sprague Dawley rats. The normal control group (KN) was not induced by Hcy and was not given date palm extract, the negative control group (K-) was the Alzheimer's experimental rats which was not given the date palm extract, the positive group was the Alzheimer's experimental rats which was given the Donepezil (K+). Groups P1, P2, P3 were Alzheimer's experimental rats that were given date palm extract at a dose of 200, 400,800 mg / kgBW / day. The effect of date palm extract dosage on TNFα levels and brain weight were analyzed using the One Way Anova test followed by Tukey's post hoc test. Results: The difference in TNFα levels between groups showed a significant difference (p = 0.00). Meanwhile there was no significant difference in brain weight among all groups (p > 0,05). Conclusion: Date palm extract at doses of 200, 400, 800 mg / kgBW can decrease blood TNFα levels of Alzheimer’s model rats.
Homosistein (hcy) adalah asam amino mengandung sulfur yang terbentuk selama metabolisme metionin asam amino esensial. Pemberian homosistein menyebabkan peningkatan stres oksidatif, kerusakan DNA, pemicu apoptosis dan eksitotoksisitas, yang penting dalam degenerasi saraf. Kadar homosistein yang meningkat menyebabkan neurotoksisitas dan atrofi otak pada Penyakit Alzheimer (AD). Penelitian ini bertujuan untuk mengamati bobot otak tikus Sprague Dawley yang diinduksi Hcy selama 7, 14 dan 21 hari. Penelitian ini merupakan eksperimental laboratorik dengan posttest only group design. Sembilan ekor tikus Sprague dawley umur 8-12 minggu dengan berat badan antara 150-200 gram dibagi secara acak menjadi 3 kelompok (n=3). Semua kelompok diberikan injeksi homosistein dengan dosis yang sama yaitu 0,4 mg / kg berat badan. Kelompok I, II dan III diinjeksi homosistein selama 7, 14, dan 21 hari untuk setiap kelompok secara berurutan. Pengamatan berat otak dilakukan setelah eutanasia pada hari ke 7, 14, dan 21 setelah perlakuan. Sampel berat otak diukur dengan menggunakan timbangan digital. Perbedaan berat otak antar kelompok dianalisis dengan menggunakan ANOVA. Hubungan antara berat otak dan lama injeksi homosistein dianalisis dengan menggunakan uji korelasi productmoment Pearson. Semua prosedur penelitian telah dilakukan dengan persetujuan dari Komite Etik Hewan Fakultas Kedokteran UNS No: 106/UN27.06.6.1/KEPK/EC/2020. Injeksi homosistein selama 7, 14 dan 21 hari tidak mengubah berat otak. Berat otak mengalami penurunan tetapi tidak signifikan secara statistik (p=0,549). Hasil penelitian menunjukkan bahwa peningkatan kadar homosistein tidak mempengaruhi berat otak tikus model penyakit Alzheimer.
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