白细胞计数低怎么办
What Does a Low White Blood Cell Count Mean?
白细胞计数低意味着什么？
原文作者：Michael Greger M.D.
原文网址：https://nutritionfacts.org/video/what-does-a-low-white-blood-cell-count-mean/
Testing how many white blood cells we have at any given time, our white blood cell count is one of the most common laboratory tests doctors order. For example, if you end up in the emergency room with abdominal pain, having a white blood cell count above about 10 billion per quart of blood may be a sign you have appendicitis. Most Americans fall between 4.5 and 10, but most Americans are unhealthy. Just because 4.5 to 10 is normal, doesn’t mean it’s ideal. The average American is over weight; so, if your weight is “normal,” that’s a bad thing.
检测既定时间的白细胞数量，得出我们的白细胞计数，是医生开出的最常见实验室检测之一。比如说，如果你肚子疼，来到急诊室，检查出白细胞计数高于1夸脱（译者注：美制，湿量一夸脱等于0.946升，即946毫升。）血大约100亿，这可能表明你得了阑尾炎。大部分美国人，该数值的范围是45亿到100亿，但大多数美国人是不健康的。仅仅因为45亿到100亿“正常”，并不意味着它们是理想的。普通美国人都超重；因此，如果你的重量是“正常”的，这就不是桩好事。
In fact, having excess fat itself causes inflammation within the body. So, no surprise those who are obese walk around with 2 billion more white cells per quart of blood. Maybe obese individuals “should…have their own ‘normal values?'” So, someone with a 47-inch waist walking iBmdOijnto the ER with a white count of 12, 13, 14 may not haBmdOijve appendicitis, or an infection—that may just be their baseline, normal level, given all the inflammation they have in their body from the excess fat. So, normal levels are not necessarily healthy levels.
实际上，有多余的脂肪本身就会在体内造成炎症。因此，肥胖者的白细胞计数高达每夸脱血20亿以上，就不奇怪了。或许肥胖者“应该……有他们自己的‘正常值’？”于是，有个腰围47英寸（译者注：约119厘米）的人，走进急诊室，检查出白细胞计数高达120亿、130亿、140亿，他可能没有阑尾炎，或者任何感染——要考虑到：在他们体内，已经因为过多脂肪而有严重的炎症，这可能只是他们的基准线、正常值。因此，正常水平并不一定是健康水平。
It’s like smoking. If you take identical twins and one smokes but the other doesn’t, the smoker is going to end up with a significantly higher white cell count. In Japan, for example, as smoking rates have steadily dropped, so has the normal white count range, such that about 8% of never smoking men would now be flagged as having abnormally low white counts if you used a cutoff like 4. But, that’s because most people were smoking before, when they set that cutoff. So, maybe 3 would be a better lower limit. The inflammation caused by smoking may actually be one of the reasons cigarettes increase the risk of heart attacks, strokes, and other inflammatory diseases. So, do people who have lower white counts have less heart disease, cancer, and overall mortality? Yes, yes, and yes. People with lower white blood cell countswww.czybx.com live longer. “Even within the normal range,” every one point drop may be associated with a 20% drop in the risk of premature death.
这就像抽烟。如果找一对同卵双胞胎，让一个人抽烟，另一个不抽烟。抽烟的那个人，白细胞计数最后会高得多。例如，在日本，随着抽烟率稳步下降，“正常”的白细胞计数范围也跟着稳步下降。如此一来，如果你使用40亿这样的下限值，大约有8%从来不抽烟的人，现在就会标记为“不正常”。但是，这是因为，以前大多数人都抽烟，他们在那时设定了这个下限值。因此，或许30亿是更好的下限值。抽烟引发的炎症，实际上可能是烟草提高心脏病、中风及其他炎症性疾病的原因之一。这么说，白细胞计数较低的BmdOij人，心脏病、癌症和总体死亡率较低？是的，确实如此。白细胞计数较低的人，寿命更长。“即使在正常范围内”，每下降一个点（译者注：意为计数上下降一个10亿，下文同），随之而来的，早死的风险下降20%。
So, there’s an exponential increase in risk as white count goes up, even within the so-called normal range. This is for men; the same is found for women. The white blood cell count is a “widely available and inexpensive measure of systemic inflammation.” At around age 85 in this study, half of women who started out with white counts under 5.6 were still alive, whereas 80% of those that started out over 7 were dead. And, 7, 8,9, or 10 would be considered normal. Being at the high normal range may place one at 3 times the risk of dying from heart disease compared to being at the lower end.
这么说，即使在所谓的正常范围内，随着白细胞计数上升，风险也呈指数式提高。对于男人来说是如此，对于女人，也发现了同样的规律。白细胞计数是“广泛运用且成本低廉的系统炎症衡量方法”。在BmdOij该研究中，大约85岁时，开始时白细胞计数少于56亿的女人中，一半人还活着；但开始时该数值高于70亿的人，80%都去世了。而70亿、80亿、90亿或10亿都会认为是正常值。相比靠近下限值的人，处于正常范围内靠近上限值的人，死于心脏病的风险高达3倍。
Same link found for African-American men and women. Same in middle age. Same at age 75. Same at age 85. Same even in our 20s and 30s: a 17% increase in coronary artery disease incidence for each single point higher.
非裔美国男人和女人中，发现了同样的联系。中年人是这样，75岁的人是这样，85岁的人也是这样。20多岁和30多岁的人，也是如此：每升高1个点，冠心病发病率提高17%。
The higher your white count, the worse your arterial function and the stiffer your arteries; so, no wonder “white blood cell count is a useful predictor of artery disease” in your heart, brain, legs,and neck, and of high blood pressure. Even diabetes, according to a compilation of 20 different studies. Everything from fatty liver disease to having an enlarged prostate. And, having a higher white blood cell count is associated with an increased risk of dying from cancer as well. And, these are all within the normal range.
你的白细胞计数越高，你的动脉功能就越差；因此，毫不奇怪，“白细胞计数是”心脏、大脑、腿部和颈部中“动脉疾病”，以及高血压的有效预测指标。根据一份20项不同研究的汇编，即使糖尿病也可以这样预测。从脂肪肝到前列腺肿大，所有的疾病都适用。另外，白细胞计数较高，也伴随着死于癌症的风险上升。而这些检测值，还都处于“正常”范围内。
欢迎扫描如下二维码关注本公众号，并把它介绍给热爱人生，富有学习激情的亲朋，锻炼英语阅读能力，积累营养学知识。
内容版权声明：除非注明原创否则皆为转载，再次转载请注明出处。
文章标题: 白细胞计数低怎么办