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Chinese researchers identify target to develop depression drug using traditional ethnic medicine in Yunnan_我的网站

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Qingyangshen, or Root of Auricledleaf Swallowwort, a traditional ethnic medicinal plant long used in Southwest China's Yunnan Province. Photo: Scrrenshot from website
    Qingyangshen, or Root of Auricledleaf Swallowwort, a traditional ethnic medicinal plant long used in Southwest China's Yunnan Province. Photo: Scrrenshot from website
A Chinese research team has identified a new potential target to develop antidepressant drug from Qingyangshen, or Root of Auricledleaf Swallowwort, a traditional ethnic medicinal plant long used in Southwest China's Yunnan Province, according to Kunming University of Science and Technology, Science and Technology Daily reported Sunday.
The team, led by professors Xu Tianrui and Xiang Cheng from the university's School of Life Science and Technology, found that Qingyangshen glycosides, the plant's core active compound, can alleviate depression-related behaviors by simultaneously suppressing inflammation, reducing oxidative damage and stabilizing neurotransmitters in the brain.
The findings were published in the international journal Phytomedicine.  
Depression has become a widespread mental health disorder globally, while existing clinical drugs fail to provide effective treatment for more than 30 percent of patients, according to the researchers. Previous studies have established a strong link between chronic inflammation and depression, but existing anti-inflammatory drugs have limited targeting capabilities, underscoring the need for new therapeutic targets and lead compounds.
Qingyangshen, a plant of the Cynanchum genus in the Apocynaceae family, has long been used as a traditional medicine by ethnic groups including the Naxi, Yi and Bai peoples in Yunnan, mainly for treating neurological conditions such as epilepsy and neurasthenia. 
The researchers systematically examined the pharmacological effects of Qingyangshen extract and its core active compound, Qingyangshen glycosides. Tests using mouse, zebrafish and fruit fly models repeatedly showed that the compound significantly improved depression-related behaviors induced by inflammation, according to the report.
To identify the compound's target, the team developed a dual-discrimination model for four subtypes of prostaglandin E2 receptors and combined it with AI-powered machine learning. The researchers screened hundreds of G protein-coupled receptors and identified the prostaglandin E2 subtype 4 receptor as the direct target of Qingyangshen glycosides.
Multiple molecular experiments confirmed that the compound binds directly to the receptor and acts as an inhibitory ligand. Further experiments involving animals with the receptor knocked out in the hippocampus showed that the antidepressant effects of Qingyangshen glycosides disappeared completely when the receptor was absent, providing the first in-vivo evidence that the receptor is essential for the compound's therapeutic effects.
An illustration of the research. Photo: Screenshot from the website
    An illustration of the research. Photo: Screenshot from the website
The study establishes the prostaglandin E2 subtype 4 receptor as a potential new target for antidepressant drug development and points to a new approach to treating depression through inflammatory pathways. It also identifies Qingyangshen glycosides as a potential lead compound for developing highly targeted anti-inflammatory antidepressants, creating a research chain from ethnic medicinal plants and active compounds to drug targets and new drug development.
Global Times
。    ▲ 더불어민주당 김민석 대표가 26일 경북 안동시 민주당 경북도당 사무실에서 열린 최고위원회의에서 발언하고 있다. 연합뉴스 더불어민주당 김민석 대표가 이재명 대통령에게 인요한 전 국민의힘 의원의 대한적십자사 회장 취임을 위한 인준을 재고해달라고 요청한 것으로 알려졌다.민주당 박성준 수석대변인은 26일 경북 안동에서 열린 현장 최고위원회의를 마친 뒤 기자들과 만나 이 같은 사실을 전했다.박 수석대변인은 "어제 청와대에서 이 대통령과 민주당 지도부 간 만찬이 끝난 뒤 김 대표가 별도의 자리에서 인 회장을 임명하지 않는 게 좋겠다고 말했다"고 밝혔다.이어 "인 회장 임명과 관련해 여러 이야기가 나오는 가운데 당 내외 의견을 수렴한 결과 이런 말씀을 드린 것"이라고 설명했다.인 전 의원은 국회공직자윤리위원회의 취업심사를 통과한 상태다.국회가 전날 공개한 '2026년 8월 퇴직공직자 취업심사결과'에 따르면 국회공직자윤리위는 지난 24일 심사를 진행해 인 전 의원의 대한적십자사 회장 취업에 대해 '취업 가능' 판단을 내렸다.                   ▲ 인요한 전 국민의힘 의원/연합뉴스 이에 따라 인 전 의원은 이 대통령의 인준을 받으면 대한적십자사 회장에 취임할 수 있게 된다.앞서 대한적십자사는 지난 6월 22일 중앙위원회 의결을 통해 인 전 의원을 회장으로 선출했다.그러나 인 전 의원이 2024년 12월 비상계엄 선포 이후 윤석열 전 대통령 탄핵소추안 표결에 불참한 점 등을 이유로 회장 선출이 적절하지 않다는 비판이 제기돼왔다.이번 김 대표의 인준 재고 요청으로 이 대통령이 인 전 의원의 적십자사 회장 취임을 둘러싼 정치권의 논란을 어떻게 판단할지 주목된다.#대통령 #적십자사 #인준 #의원 #임명。

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