Babies Born via C-section Are More Likely to Become Obese
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研究稱 破婦產科能導致嬰兒肥胖。（雙語閱讀）
一項研究表明，通過剖腹產出生的嬰兒要比順產出生的嬰兒更容易出現肥胖問題。
Research from New York University found that mice born via a c-section are more likely to have an unbalanced amount of good and bad bacteria in their stomachs, which puts them at risk for gaining too much weight.
紐約大學的這項研究發現，剖腹產出生的小鼠胃里的有益細菌和有害細菌數量更容易出現不平衡，從而增加它們超重的風險。
For the study, researchers observed 34 mice that were delivered by c-section and 35 mice that were born naturally.
在這項研究中，研究人員對34只剖腹產出生的小鼠和35只自然分娩出生的小鼠進行了觀察。
They tracked their body weights and analyzed their intestinal bacteria until the mice had grown into adults.
研究人員持續追蹤小鼠成年前的體重，并分析它們的腸道細菌。
The human gut has more bacteria than any other part of the body, both in number and diversity. There are four major types of gut bacteria: Firmicutes, Bacteroidetes, Actinobacteria and Proteobacteria.
無論從數量還是種類上，腸道都是人體器官中擁有細菌最多的地方。腸道細菌主要分為四種：厚壁菌門、擬桿菌門、放線菌門和變形菌門。
Firmicutes play a role in energy re-absorption, and may be linked to diabetes and obesity.
厚壁菌門的作用是重新吸收能量，它可能與糖尿病和肥胖癥相關。
Bacteroidetes account for 30 percent of all gut bacteria, and are important to our ability to digest and use energy from carbohydrates and sugars.
擬桿菌門的數量占所有腸道菌細菌的30%，對人們消化、利用碳水化合物以及糖類中的能量至關重要。
Acinobacteria produce bioactive metabolites, which we use in medicines like antibacterials. Proteobacteria are a category of bacteria that include diseases like chlamydia, but exist in healthy guts.
放線菌門能產生活性代謝物，這是抗菌藥等藥物中含有的成分。變形菌門中包含沙眼衣原體等病菌，這類細菌也存在于健康的腸道內。
Mice that were born via a c-section put on about 30 percent more weight than their counterparts who'd had a natural birth. Females, specifically, who had been delivered by c-section had gained a staggering 70 percent more weight than the mice born vaginally.
剖腹產出生的小鼠比順產出生的小鼠大約重30%。具體到雌性，剖腹產出生的小鼠要比其順產出生的同類超重多達70%。
The drastic increase is credited to a difference in the bacteria found in the stomachs of the two groups of mice.
體重明顯增長是因為兩組小鼠的腸道細菌的差異。
Study author Dr Maria Dominguez-Bello said: 'Our study is the first to demonstrate a causal relationship between c-section and increased body weight in mammals.'
研究的作者瑪麗亞·多明格斯-貝羅稱：“我們的研究首次證明了剖腹產和哺乳動物體重增加之間的因果關系。”
The research team said that c-sections, while critical in about 15 percent of births, are widely overused, citing that 50 percent of births in Brazil, Iran and the Dominican Republic are performed via the operation.
該研究團隊表示，雖然在人類的生產中約15%的剖腹產是必要的，但很多地方都在濫用剖腹產手術，例如巴西、伊朗和多米尼加共和國的剖腹產比例達到了50%。
They are hopeful that their work will curb unnecessary cesareans and bring down the growing obesity rate in the US.
該團隊希望他們的研究可以扼制不必要的剖腹產手術，降低美國日益嚴重的肥胖率。
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