Research on the proximity relationships of psychosomatic disease knowledge graph modules extracted by large language models

Abstract As social changes accelerate, the incidence of psychosomatic disorders has significantly increased, becoming a major challenge in global health issues. This necessitates an innovative knowledge system and analytical methods to aid in diagnosis and treatment. Here, we establish the ontology...

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Main Authors: Zihan Zhou, Ziyi Zeng, Wenhao Jiang, Yihui Zhu, Jiaxin Mao, Yonggui Yuan, Min Xia, Shubin Zhao, Mengyu Yao, Yunqian Chen
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-05499-8
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author Zihan Zhou
Ziyi Zeng
Wenhao Jiang
Yihui Zhu
Jiaxin Mao
Yonggui Yuan
Min Xia
Shubin Zhao
Mengyu Yao
Yunqian Chen
author_facet Zihan Zhou
Ziyi Zeng
Wenhao Jiang
Yihui Zhu
Jiaxin Mao
Yonggui Yuan
Min Xia
Shubin Zhao
Mengyu Yao
Yunqian Chen
author_sort Zihan Zhou
collection DOAJ
description Abstract As social changes accelerate, the incidence of psychosomatic disorders has significantly increased, becoming a major challenge in global health issues. This necessitates an innovative knowledge system and analytical methods to aid in diagnosis and treatment. Here, we establish the ontology model and entity types, using the BERT model and LoRA-tuned LLM for named entity recognition, constructing the knowledge graph with 9668 triples. Next, by analyzing the network distances between disease, symptom, and drug modules, it was found that closer network distances among diseases can predict greater similarities in their clinical manifestations, treatment approaches, and psychological mechanisms, and closer distances between symptoms indicate that they are more likely to co-occur. Lastly, by comparing proximity scores, it was shown that symptom-disease pairs in primary diagnostic relationships have a stronger association and are of higher referential value than those in diagnostic relationships. The research results revealed the potential connections between diseases, co-occurring symptoms, and similarities in treatment strategies, providing new perspectives for the diagnosis and treatment of psychosomatic disorders and valuable information for future mental health research and practice.
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issn 2045-2322
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spelling doaj-art-9a6c3a334f834f7da4e5c8a3aa61429d2025-08-20T03:05:22ZengNature PortfolioScientific Reports2045-23222025-07-0115112310.1038/s41598-025-05499-8Research on the proximity relationships of psychosomatic disease knowledge graph modules extracted by large language modelsZihan Zhou0Ziyi Zeng1Wenhao Jiang2Yihui Zhu3Jiaxin Mao4Yonggui Yuan5Min Xia6Shubin Zhao7Mengyu Yao8Yunqian Chen9School of Automation, Nanjing University of Information Science and TechnologySchool of Automation, Nanjing University of Information Science and TechnologyDepartment of Psychiatry and Psychosomatics, School of Medicine, Jiangsu Provincial Key Laboratory of Brain Science and Medicine, Zhongda Hospital, Southeast UniversitySchool of Automation, Nanjing University of Information Science and TechnologyThe First Affiliated Hospital of Ningbo UniversityDepartment of Psychiatry and Psychosomatics, School of Medicine, Jiangsu Provincial Key Laboratory of Brain Science and Medicine, Zhongda Hospital, Southeast UniversitySchool of Automation, Nanjing University of Information Science and TechnologyNanjing LES Information Technology Co., Ltd.School of Automation, Nanjing University of Information Science and TechnologySchool of Automation, Nanjing University of Information Science and TechnologyAbstract As social changes accelerate, the incidence of psychosomatic disorders has significantly increased, becoming a major challenge in global health issues. This necessitates an innovative knowledge system and analytical methods to aid in diagnosis and treatment. Here, we establish the ontology model and entity types, using the BERT model and LoRA-tuned LLM for named entity recognition, constructing the knowledge graph with 9668 triples. Next, by analyzing the network distances between disease, symptom, and drug modules, it was found that closer network distances among diseases can predict greater similarities in their clinical manifestations, treatment approaches, and psychological mechanisms, and closer distances between symptoms indicate that they are more likely to co-occur. Lastly, by comparing proximity scores, it was shown that symptom-disease pairs in primary diagnostic relationships have a stronger association and are of higher referential value than those in diagnostic relationships. The research results revealed the potential connections between diseases, co-occurring symptoms, and similarities in treatment strategies, providing new perspectives for the diagnosis and treatment of psychosomatic disorders and valuable information for future mental health research and practice.https://doi.org/10.1038/s41598-025-05499-8Psychological diseaseGraph structure analysisNetwork distanceProximity metricClinical manifestation
spellingShingle Zihan Zhou
Ziyi Zeng
Wenhao Jiang
Yihui Zhu
Jiaxin Mao
Yonggui Yuan
Min Xia
Shubin Zhao
Mengyu Yao
Yunqian Chen
Research on the proximity relationships of psychosomatic disease knowledge graph modules extracted by large language models
Scientific Reports
Psychological disease
Graph structure analysis
Network distance
Proximity metric
Clinical manifestation
title Research on the proximity relationships of psychosomatic disease knowledge graph modules extracted by large language models
title_full Research on the proximity relationships of psychosomatic disease knowledge graph modules extracted by large language models
title_fullStr Research on the proximity relationships of psychosomatic disease knowledge graph modules extracted by large language models
title_full_unstemmed Research on the proximity relationships of psychosomatic disease knowledge graph modules extracted by large language models
title_short Research on the proximity relationships of psychosomatic disease knowledge graph modules extracted by large language models
title_sort research on the proximity relationships of psychosomatic disease knowledge graph modules extracted by large language models
topic Psychological disease
Graph structure analysis
Network distance
Proximity metric
Clinical manifestation
url https://doi.org/10.1038/s41598-025-05499-8
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