Human Clinical Trials Begin for Age-Reversal Drug Taken by Mouth
口服逆齡藥物開始進行人體臨床試驗
Introduction
Harvard biologist David Sinclair plans to start human trials for a chemical agent designed to reverse aging. This project is part of the XPrize Healthspan Competition, which aims to find ways to restore youth to the human body.
哈佛生物學家 David Sinclair 計劃針對一種旨在逆轉衰老的化學藥劑開始人體試驗。此項目是 XPrize Healthspan 競賽的一部分，目標是找出恢復人體年輕的方法。
Main Body
The treatment uses a process called epigenetic reprogramming. This method is based on the discovery of genes that can turn adult cells back into an early embryonic state. While Sinclair's company, Life Biosciences, previously worked on local gene therapy for eye problems, the new goal is to use a systemic oral drug called SL-100. This drug aims to reset DNA controls throughout the entire body, which could improve immune system, brain, and muscle functions.
這種治療使用的是一種稱為「表觀遺傳重編程」的過程。此方法基於發現了能將成年細胞恢復到早期胚胎狀態的基因。雖然 Sinclair 的公司 Life Biosciences 先前從事針對眼睛問題的局部基因治療，但新目標是使用一種名為 SL-100 的全身性口服藥物。該藥物旨在重設全身的 DNA 控制，進而改善免疫系統、大腦和肌肉功能。
This project is supported by the XPrize Foundation and funded by the Hevolution Foundation of Saudi Arabia. To win the competition, teams must prove that participants' biological age improved by ten years or more over one year. Consequently, this initiative helps create standard ways to measure aging, as scientists currently disagree on how to accurately measure age reversal.
此項目由 XPrize 基金會支持，並由沙烏地阿拉伯的 Hevolution 基金會資助。若要贏得競賽，團隊必須證明參與者的生物年齡在一年內改善了十年或更多。因此，這項計劃有助於建立衡量衰老的標準方法，因為科學家目前對於如何準確衡量逆轉衰老仍存在分歧。
However, some experts are skeptical of this method. For example, researcher Vadim Gladyshev stated that previous attempts to rejuvenate whole animals either had no effect at low doses or were poisonous at high doses. Furthermore, Sinclair's reputation has been questioned after he left the Academy for Health and Lifespan Research due to claims that he lacked enough evidence regarding a supplement tested on dogs. Despite these doubts, the field continues to attract huge investments, such as the $435 million raised by the startup NewLimit.
然而，部分專家對此方法持懷疑態度。例如，研究員 Vadim Gladyshev 指出，先前嘗試讓整個動物回春的嘗試，在低劑量下沒有效果，而高劑量下則有毒。此外，Sinclair 在離開健康與壽命研究學院後，因被指對一種在狗身上測試的補充劑缺乏足夠證據，其聲譽受到質疑。儘管存在這些質疑，該領域仍持續吸引巨額投資，例如初創公司 NewLimit 籌集了 4.35 億美元。
Conclusion
The effectiveness of the SL-100 drug has not yet been proven, and the final candidates for the competition will be announced in August.
SL-100 藥物的有效性尚未得到證明，競賽的最終入圍名單將於 8 月公布。
Vocabulary Learning
⚡ The 'Logic Connector' Shift
At an A2 level, you likely use and, but, and because. To reach B2, you need to use Cohesive Devices to show the relationship between two complex ideas. Let's look at how this article moves from simple storytelling to academic argument.
🧩 From 'But' to 'However' & 'Despite'
In the text, we see a shift in tone. Instead of saying "But some people don't believe it," the author uses:
*"However, some experts are skeptical..."
The B2 Upgrade: Use However at the start of a sentence followed by a comma to introduce a contrasting point. It signals to the reader that a 'pivot' is happening.
🔗 The Cause-and-Effect Chain
Look at this sequence:
Goal (Win competition) Action (Prove age improvement) Result (Create standard measures)
The text uses "Consequently" to bridge these ideas.
- A2 style: They want to win, so they make a way to measure age.
- B2 style: They aim to win the competition; consequently, this initiative helps create standard ways to measure aging.
🧪 Vocabulary Expansion: 'State' vs. 'Condition'
Notice the phrase "early embryonic state." In B2 English, we move away from general words like 'thing' or 'way'.
| A2 Word | B2 Alternative (from text) | Why it's better |
|---|---|---|
| Change | Reprogramming | More precise/technical |
| Doubt | Skeptical | Describes a mindset, not just a feeling |
| Whole | Systemic | Describes how something affects the entire system |
Pro Tip: When you see a word like 'systemic' or 'reprogramming', don't just translate it. Ask yourself: 'Does this describe a general action or a specific process?' That is the key to B2 precision.