www.angewandte.org gami, [6] and other types of unconventional nucleic acids (Figure 1), [3c, 7] that can replace traditional proteases and antibodies, possess independent structural functions, and perform specific biological non-genetic functions. [3a-c, 4a,b, 8] The concept of FNA was also used to generalize the nongenetic functions of nucleic acids (Figure 1). [9] Meanwhile, research on the combination and functions of FNAs, such as DNAzymes, aptazymes, and aptamers, and nanomaterials, Wentao Xu studied at China Agricultural University (BS 2001, PhD 2006) and conducted postdoctoral research there before joining the faculty. He is currently an associate professor in the College of Food Science and Nutritional Engineering at China Agricultural University. His research interest is functional nucleic acid biosensors and nanomaterials. Wanchong He obtained his BS degree from Huazhong Agricultural University in 2017. He is now a PhD candidate in the College of Food Science and Nutritional Engineering at China Agricultural University. His research interest is functional nucleic acid biosensors.
Alliin (S-allyl cysteine sulfoxide) is a bioactive sulfoxide compound derived from garlic. To evaluate the preventive effect of alliin against metabolic risk factors in diet induced obese (DIO) mice, we treated the C57BL/6J DIO mice with drinking water with or without alliin (0.1 mg/ml) for 8 weeks. Results showed that alliin had no significant effect on the body weight, adiposity or energy balance. However, alliin treatment enhanced glucose homeostasis, increased insulin sensitivity and improved the lipid profile in the DIO mice. This was, at least partly, attributable to alliin induced modulation of the intestinal microbiota composition, typically decreased Lachnospiraceae and increased Ruminococcaceae. From above, we conclude that alliin has nutraceutical or even medicinal potential in prevention of diabetes and lipid metabolic disorders.
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