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哈佛大学和麻州总医院研究人员称，开发出一种可以消除腹部脂肪的新针剂。这项新技术将冰冷、含有小冰粒的盐溶液，直接注入腹部脂肪层，就能冻死那里的脂肪细胞。

研究小组表示，针剂是由盐水、甘油以及和20％至40％的小冰粒组成的无菌溶液(质地有点像冰砂)，注射方式用针头或是导管，达到任何深度的脂肪层。小冰粒会在那里结晶，并杀死脂肪细胞。

为了测试过程，研究人员以猪来做了8周的实验。他们发现，与对照组相比，小冰粒针剂使猪的脂肪层厚度，减少55％，而对照组的猪接受的针剂，是没有冰粒的食盐水-甘油溶液，所以它的脂肪层没有消减效果。不管哪一组，针剂对皮肤或肌肉并没造成损害，也没观察到其他副作用。

研究团队主要作者莉莉说：“这项技术最大的好处在于操作简便又有效，医生注射溶脂剂，只需不到一分钟的时间。”

然而，到目前为止，该新方法仅在猪身上测试，因此还无法保证在人体上是否也起同样效果。更重要的是，它只是消除腹部脂肪，而不是全身消脂。