共 13 筆專利技術
短胜肽及其組合物用於治療或/及預防骨骼肌萎縮症或與其相關疾病之用途
Sarcopenia is an aging associated involving skeletal muscle atrophy and reduction in muscle strength; and there are no pharmaceutical interventions available so far. Moreover, conditions like hyperglycaemia are known to further intensify muscle degradation. Therefore, novel strategies to attenuate skeletal muscle loss are essential to enhance muscle function and thereby to improve the quality of life in diabetic individuals. In this study we have investigated the efficiency of a soybean peptide fraction APPH and a short peptide from PP622 named DI-10 for their cytoprotective effects in skeletal muscle cells. PP622 and DI-10 treatment in C2C12 cells showed dose dependent activation of Akt/mtor signalling pathway that is involved in skeletal myogenesis. According to Western blotting analysis, PP622 and DI-10 induced the phosphorylation of Akt, mTOR proteins and induced myogenic differentiation of C2C12 myoblasts in a differentiation medium. The phosphorylation myogenic transcription factor Foxo3A was also found to be increased in the cells treated with PP622 and DI-10. In addition, reduction in cell viability caused by high glucose was also found to be reduced when treated with different doses of high glucose in a dose dependent manner. Moreover, number of myotybules in a differentiation medium reduced upon high glucose challenge, but treatment with PP622 increased the number of differentiated myotubules. Further, the phosphorylations of AMPK and mitochondrial-related transcription factors such as PGC-1α were suppressed upon high glucose challenge but PP622 and DI-10 treatment restored the protein levels. We demonstrate for the first time that a specific potato peptide has a therapeutic effect against sarcopenia. In addition, DI-10 and PP622 improved the myogenic differentiation and their mitochondrial biogenesis and further improved mygenic protein and inhibited muscle protein degradation in C212 cells challenged under high glucose condition.
肌少症是與老化相關的疾病，涉及骨骼肌萎縮和肌力減少；目前尚無有效的藥物治療方法。此外，像是高血糖等情況已知會進一步加劇肌肉退化。因此，開發新的策略來減緩骨骼肌損失對於提高肌肉功能並改善糖尿病患者的生活品質至關重要。在本研究中，我們探討了大豆肽分子APPH和PP622中短肽DI-10在骨骼肌細胞中的細胞保護效應。PP622和DI-10在C2C12細胞中的處理顯示出劑量依賴性地激活了涉及骨骼肌生成的Akt/mTOR信號通路。根據Western blot分析，PP622和DI-10誘導了Akt、mTOR蛋白的磷酸化，並在分化培養基中促進了C2C12肌母細胞的肌源性分化。在處理過PP622和DI-10的細胞中，我們還發現肌源性轉錄因子Foxo3A的磷酸化水準也有所增加。此外，在高糖挑戰下，細胞活力的下降被發現隨著不同劑量的高糖處理呈劑量依賴性減少。更重要的是，在分化培養基中，經高糖挑戰後，肌管數量減少，但PP622處理後，分化肌管的數量有所增加。此外，AMPK的磷酸化及與線粒體相關的轉錄因子如PGC-1α在高糖挑戰下被抑制，但PP622和DI-10的處理恢復了這些蛋白質的水平。我們首次證明了特定的馬鈴薯肽對抗肌少症的治療效果。此外，DI-10和PP622改善了肌源性分化、線粒體生物生成，並進一步改善了肌源性蛋白質，抑制了在高糖環境下C2C12細胞中的肌肉蛋白降解。
閱讀詳細資料促脂解大豆胜肽之最適水解條件、序列及其應用 Optimal hydolysis conditions of soy protein to produce peptides with lipolysis-stimulating activity and their sequencing and use thereof
本發明所揭一種製備促脂解大豆蛋白水解物之方法，首先係先將一配置好預定濃度之分離大豆蛋白，再加入一風味蛋白酶(Flavourzyme)於一最適水解條件下，進行水解反應，其中，該分離大豆蛋白與風味蛋白酶之比例為100：1，而該最適水解條件係如下：反應酸鹼值介於7~7.5間、反應溫度為40~50℃、水解時間為100~150分鐘，得到一具有極佳之促脂解活性之大豆蛋白水解物。本發明係更進一步分離鑑定出該大豆蛋白水解物中之活性胜肽序列具有九種組合，分別為Val-His-Val-Val、Leu-Leu-Leu、Leu-Leu-Ile、Leu-Ile-Leu、Leu-Ile-Ile、Ile-Leu-Leu、Ile-Leu-Ile、Ile-Ile-Leu及Ile-Ile-Ile。
閱讀詳細資料石斛多酚於保肝、治療/預防糖尿病之用途 Method for treating obesity
The present invention provides methods of administering a Dendrobium polyphenol in an amount effective to lower blood sugar, treat hepatic disease, obesity or diabetes. Exemplary hepatic disease includes fibrosis, fatty liver and hepatitis. Moreover, the Dendrobium polyphenol is extracted from the plants of the genus Dendrobium.
閱讀詳細資料以高動態範圍臨界值切割單一神經元影像的方法及其電腦可讀儲存媒體Method of Segmenting Single Neuron Images with High-Dynamic-Range Thresholds and Computer Readable Storage Medium Thereof
The method of segmenting single neuron images with high-dynamic-range thresholds of the present invention includes (a) preparing a biological tissue sample containing neurons and performing imaging to this sample to obtain a three-dimensional raw neuroimage; (b) deleting voxels in the three-dimensional raw neuroimage with signal intensities below a first signal intensity threshold to obtain a first thresholded image; (c) tracing the first thresholded image to obtain a first traced image; (d) calculating a structural importance score of every voxel in the first traced image to obtain a first structural importance score of every voxel; (e) gradually increasing the signal intensity threshold and repeating (b), (c) and (d) n−1 times; (f) summing up all the n structural importance scores of every voxel; (g) deleting voxels with summed structural importance score smaller than a pre-determined value from the raw image to obtain the segmented single neuron.
閱讀詳細資料