Bifidobacterium longum 1714 như một psychobiotic chuyển giao: điều chỉnh căng thẳng, điện sinh lý và nhận thức thần kinh ở những tình nguyện viên khỏe mạnh

Translational Psychiatry - Tập 6 Số 11 - Trang e939-e939
Andrew P. Allen1,2, William Hutch3,4, Yuliya Borre1, Paul J. Kennedy1,2, Andriy Temko5, Geraldine B. Boylan3,4, Eileen F. Murphy6, John F. Cryan1,7,8, Timothy G. Dinan1,2, Gerard Clarke1,2
1APC Microbiome Institute, Biosciences Building, University College Cork, Cork, Ireland
2Department of Psychiatry and Neurobehavioural Science, Biosciences Building, University College Cork, Cork, Ireland
3Department of Pediatrics and Child Health, University College Cork, Cork, Ireland
4INFANT Research Centre, University College Cork, Cork, Ireland
5Department of Electrical and Electronic Engineering, University College Cork, Cork, Ireland
6Alimentary Health Ltd., Cork Airport Business Park, Cork, Ireland
7Department of Anatomy and Neuroscience, Biosciences Building, University College Cork, Cork, Ireland
8Department of Anatomy and Neuroscience, Western Gateway Building, University College Cork, Cork, Ireland

Tóm tắt

Tóm tắt

Khái niệm mới nổi về psychobiotic—các vi sinh vật sống có lợi ích tiềm năng cho sức khỏe tâm thần—đại diện cho một phương pháp tiếp cận mới trong việc quản lý các tình trạng liên quan đến căng thẳng. Hầu hết các nghiên cứu tập trung vào các mô hình động vật. Gần đây, các nghiên cứu tiền lâm sàng đã xác định chủng B. longum 1714 là một psychobiotic khả thi có ảnh hưởng đến hành vi, sinh lý và hiệu suất nhận thức liên quan đến căng thẳng. Liệu những tác động tiền lâm sàng này có thể chuyển giao sang những tình nguyện viên khỏe mạnh hay không vẫn còn chưa biết. Chúng tôi đã kiểm tra xem việc tiêu thụ psychobiotic có thể ảnh hưởng đến phản ứng căng thẳng, nhận thức và các mô hình hoạt động não hay không. Trong một thiết kế nội bộ, các tình nguyện viên khỏe mạnh (N=22) đã hoàn thành các đánh giá về nhận thức, điện não đồ khi nghỉ ngơi và được tiếp xúc với bài kiểm tra nước lạnh bị đánh giá xã hội ở mức cơ sở, sau khi dùng giả dược và sau khi tiêu thụ psychobiotic. Sự tăng lên trong việc tiết cortisol và lo âu chủ quan trong phản ứng với bài kiểm tra nước lạnh bị đánh giá xã hội đã giảm. Hơn nữa, mức độ căng thẳng hàng ngày cũng giảm do việc tiêu thụ psychobiotic. Chúng tôi cũng quan sát thấy những cải thiện tinh tế trong hiệu suất trí nhớ hình ảnh không gian phụ thuộc vào hồi hải mã, cũng như sự tăng cường tính di động điện não đồ ở vị trí trán giữa sau khi tiêu thụ psychobiotic. Những lợi ích tinh tế nhưng rõ ràng này phù hợp với tác động được dự đoán từ các nền tảng sàng lọc tiền lâm sàng. Kết quả của chúng tôi chỉ ra rằng việc tiêu thụ B. longum 1714 có liên quan đến việc giảm căng thẳng và cải thiện trí nhớ. Các nghiên cứu tiếp theo là cần thiết để đánh giá những lợi ích của psychobiotic khả thi này trong các tình trạng liên quan đến căng thẳng và khám phá các cơ chế làm nền tảng cho những hiệu ứng như vậy.

Từ khóa


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