Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Tăng Insulin Do Chế Độ Ăn Khác Nhau Ảnh Hưởng Đến Chuyển Hóa Glucose và Protein: Phương Pháp Metabolomics Cao Thông Suốt Trên Chuột
Tóm tắt
Metabolomics là một công cụ cao thông suất định lượng và xác định toàn bộ bộ metabolite trong dịch sinh học. Khoa học "omics" này đang đóng một vai trò ngày càng tăng trong việc hiểu các cơ chế liên quan đến tiến triển của bệnh. Mục tiêu của nghiên cứu này là xác định xem liệu phương pháp metabolomics không định hướng có thể được áp dụng để điều tra sự khác biệt chuyển hóa giữa chuột béo phì được cho ăn chế độ ăn sucrose mỡ cao (HFS) trong 9 tuần và chuột ăn chế độ đối chứng hay không. Các động vật được cho ăn chế độ HFS đã trở nên béo phì, tăng leptin huyết, tăng glucose huyết, tăng insulin huyết và kháng insulin. Mẫu huyết thanh của động vật nhịn ăn qua đêm đã được phân tích bằng kỹ thuật 1H NMR, và 49 metabolite đã được xác định và định lượng. Những thay đổi sinh hóa quan sát được cho thấy rằng các quá trình chuyển hóa chính như chuyển hóa carbohydrate, β-oxyd hóa, chu trình axit tricarboxylic, đường Kennedy, và chuyển hóa một carbon trung gian folate đã bị thay đổi ở chuột béo. Mức độ lưu thông của hầu hết các axit amin thấp hơn ở động vật béo. Mức độ huyết thanh của axit docosahexaenoic, axit linoleic, axit béo không bão hòa n-6, và tổng số axit béo đa bão hòa cũng đã giảm ở chuột ăn chế độ HFS. Mức độ lưu thông của urê, sáu metabolite tan trong nước (creatine, creatinine, choline, acetyl carnitine, formate, và allantoin), và hai hợp chất lipid (phosphatidylcholine và sphingomyelin) cũng đã giảm đáng kể do việc tiêu thụ chế độ ăn HFS. Nghiên cứu này cung cấp thêm cái nhìn về các cơ chế có thể tham gia vào sự phát triển của béo phì do chế độ ăn. Nó gợi ý rằng tình trạng tăng insulin do chế độ ăn HFS chịu trách nhiệm cho sự giảm mức độ lưu thông của urê, creatinine, và nhiều axit amin, mặc dù có sự gia tăng mức độ glucose huyết thanh.
Từ khóa
#metabolomics #béo phì #insulin #chuyển hóa #chuộtTài liệu tham khảo
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