美国实验生物学学会联合会【FASEB】— 不老莓有助于降低血糖缓解炎症

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美国实验生物学学会联合会

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该论文发表于美国实验生物学学会联合会杂志201007期

不老莓无疑是一种令人难忘的水果，尤其是因为它们提供了多种健康益处，包括帮助减肥和减轻炎症。

不老莓有很多品种，黑色、深蓝色、红色，其中黑色花青素含量最高。

 

不老莓的总花色苷含量为每100克新鲜浆果1480毫克，并拥有目前已知植物界最高的ORAC（氧自由基吸收能力；测量抗氧化强度）抗氧化指数：16062微摩尔的Trolox的当量，是蓝莓抗氧化指数的3倍以上。科学研究表明，不老莓在对抗癌症、神经系统疾病、炎症、糖尿病、细菌感染、抗衰老方面效用卓著。

不老莓

有助于调节血糖

 

在这项最新的研究中，来自美国马里兰州贝尔茨维尔的农业科学家，分析了不老莓提取物对糖尿病大鼠的影响。在六周的时间内大鼠被随机分配分别接受纯净水和添加了不老莓提取物的喂养。六周后，科学家们比较了大鼠的体重、体脂、血糖调节和炎症标志物。

食用含不老莓提取物的大鼠明显体重低于饮用纯净水的另外一组，不老莓提取物使体内脂肪的减少,降低血糖,甘油三酯水平也有所降低、胆固醇、低密度脂蛋白(LDL)胆固醇与控制相比都有所降低。

不老莓

有助于减少脂肪

科学家也观察到了另一种变化（例如，白细胞介素-6（一种引发炎症的蛋白质），可能会有助于慢性炎症甚至癌症风险的降低。

不老莓

有助于缓解炎症症状

虽然这项研究是在大鼠上，未来针对人类的研究是必要的，研究人员相信他们的发现提供了证据，不老莓提取物抑制胰岛素抵抗动物体重增加和调节脂肪组织生长相关的多个论证以此为血糖调节和炎症提供解决方案。

FASEB英文原版

When was the last time you ate chokeberries? If you are not familiar with these tasty, nutritionally rich fruits, you may want to be, especially because they offer a variety of health benefits, including helping with weight loss and reducing inflammation.

Chokeberries (Aronia melanocarpa) are small (about 1 cm) fruits that have relatively thick, pigmented skin that come in several colors, including black, red, and blue. The red are sweeter than the black ones, and both the black and blue chokeberries are richer in the antioxidants anthocyanins than the red.

Chokeberries contain many different anthocyanins, including quercetin, epicatechin, peonidin, petunidin, among others. According to one source, the total anthocyanin content in chokeberries is 1,480 mg per 100 grams of fresh berries. They also have one of the highest ORAC (oxygen radical absorbency capacity; a measurement of antioxidant strength) values of any food: 16,062 micromoles of Trolox Equivalents, or about three times greater than blueberries. Scientific studies have shown that chokeberries offer protection against cancer, neurological diseases, inflammation, diabetes, bacterial infections, and aging.

In this newest study, scientists from the US Department of Agriculture in Beltsville, Maryland, analyzed the impact of chokeberry extract on 18 prediabetic rats. The rats were randomly assigned to receive either pure water or water spiked with low or high levels of chokeberry extract for six weeks. After six weeks, the scientists compared body weight, body fat, blood glucose regulation, and markers for inflammation in the rats.

The rats that had consumed the chokeberry extract weighed less than the controls, regardless of the level of extract they had taken. Chokeberry extract use was also associated with a reduction in body fat, lower blood glucose, and reduced levels of triglycerides, cholesterol, and low-density lipoprotein (LDL) cholesterol when compared with controls. Scientists also observed changes (e.g., lower expression of interleukin-6, a protein that triggers inflammation) that would probably result in a reduction in chronic inflammation and perhaps even cancer risk.

Although this study was in rats and human studies are needed, the researchers believe their finding “provides evidence that the chokeberry extract inhibits weight gain in insulin-resistant animals and that it modulates multiple genes associated with adipose tissue growth, blood glucose regulation, and inflammatory pathways. Because chokeberries are bitter, they are best enjoyed if you mix them with other fruits or in fruit blends, sweetened syrups, jellies, or in supplements.

SOURCES:

Federation of American Societies for Experimental Biology (July 24 2010). Retrieved July 26, 2010, from http://www.sciencedaily.com¬ /releases/2010/04/100426072123.htm