1.Marginal Zone Lymphoma with Recurrent Intestinal Obstruction After Multiple Chemotherapy: A Case Report
Sirui HAN ; Yan ZHANG ; Guannan ZHANG ; Peijun LIU ; Wen SHI ; Wenbo LI ; Rongrong LI ; Congwei JIA ; Jian CAO ; Wei WANG
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1344-1351
This article reports a diagnostically and therapeutically challenging case of small intestinal marginal zone lymphoma. The patient presented with recurrent abdominal pain as the chief complaint, and imaging revealed multifocal small bowel wall thickening with high uptake, multisegmental luminal stenosis, and proximal dilation. Initial diagnostic workup, including gastroscopy, colonoscopy, and enteroscopy with biopsy, failed to establish a definitive diagnosis. Empirical anti-tuberculosis therapy was ineffective. A repeat enteroscopic biopsy performed over eight months after symptom onset eventually confirmed the diagnosis of mucosa-associated lymphoid tissue (MALT) extranodal marginal zone lymphoma. Despite three different chemotherapy regimens, the patient's intestinal obstruction symptoms persisted, with imaging still showing multifocal bowel wall thickening and hypermetabolic activity. A critical diagnostic dilemma arose regarding whether the PET/CT-positive lesions represented residual lymphoma or fibrotic scarring, whether further chemotherapy adjustments were warranted, and whether surgical resection was necessary. Multidisciplinary discussion concluded that imaging had limited discriminatory value in this scenario and that surgical intervention should be pursued if feasible. The patient successfully underwent partial small bowel resection, with postoperative pathology confirming no residual lymphoma but significant fibrotic changes. The patient has since resumed a normal diet, with body weight nearly restored to pre-illness levels. This case highlights that fibrotic transformation is a common sequela of treated marginal zone lymphoma and that PET/CT may misleadingly suggest residual disease, potentially leading to unnecessary chemotherapy. Timely surgical intervention is crucial in such scenarios.
2.Autophagy in skeletal muscle dysfunction of chronic obstructive pulmonary disease: implications, mechanisms, and perspectives.
Xiaoyu HAN ; Peijun LI ; Meiling JIANG ; Yuanyuan CAO ; Yingqi WANG ; Linhong JIANG ; Xiaodan LIU ; Weibing WU
Journal of Zhejiang University. Science. B 2025;26(3):227-239
Skeletal muscle dysfunction is a common extrapulmonary comorbidity of chronic obstructive pulmonary disease (COPD) and is associated with decreased quality-of-life and survival in patients. The autophagy lysosome pathway is one of the proteolytic systems that significantly affect skeletal muscle structure and function. Intriguingly, both promoting and inhibiting autophagy have been observed to improve COPD skeletal muscle dysfunction, yet the mechanism is unclear. This paper first reviewed the effects of macroautophagy and mitophagy on the structure and function of skeletal muscle in COPD, and then explored the mechanism of autophagy mediating the dysfunction of skeletal muscle in COPD. The results showed that macroautophagy- and mitophagy-related proteins were significantly increased in COPD skeletal muscle. Promoting macroautophagy in COPD improves myogenesis and replication capacity of muscle satellite cells, while inhibiting macroautophagy in COPD myotubes increases their diameters. Mitophagy helps to maintain mitochondrial homeostasis by removing impaired mitochondria in COPD. Autophagy is a promising target for improving COPD skeletal muscle dysfunction, and further research should be conducted to elucidate the specific mechanisms by which autophagy mediates COPD skeletal muscle dysfunction, with the aim of enhancing our understanding in this field.
Pulmonary Disease, Chronic Obstructive/physiopathology*
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Autophagy/physiology*
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Humans
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Muscle, Skeletal/pathology*
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Mitophagy
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Animals
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Mitochondria/metabolism*
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Lysosomes
3.Expert consensus on the prevention and treatment of enamel demineralization in orthodontic treatment.
Lunguo XIA ; Chenchen ZHOU ; Peng MEI ; Zuolin JIN ; Hong HE ; Lin WANG ; Yuxing BAI ; Lili CHEN ; Weiran LI ; Jun WANG ; Min HU ; Jinlin SONG ; Yang CAO ; Yuehua LIU ; Benxiang HOU ; Xi WEI ; Lina NIU ; Haixia LU ; Wensheng MA ; Peijun WANG ; Guirong ZHANG ; Jie GUO ; Zhihua LI ; Haiyan LU ; Liling REN ; Linyu XU ; Xiuping WU ; Yanqin LU ; Jiangtian HU ; Lin YUE ; Xu ZHANG ; Bing FANG
International Journal of Oral Science 2025;17(1):13-13
Enamel demineralization, the formation of white spot lesions, is a common issue in clinical orthodontic treatment. The appearance of white spot lesions not only affects the texture and health of dental hard tissues but also impacts the health and aesthetics of teeth after orthodontic treatment. The prevention, diagnosis, and treatment of white spot lesions that occur throughout the orthodontic treatment process involve multiple dental specialties. This expert consensus will focus on providing guiding opinions on the management and prevention of white spot lesions during orthodontic treatment, advocating for proactive prevention, early detection, timely treatment, scientific follow-up, and multidisciplinary management of white spot lesions throughout the orthodontic process, thereby maintaining the dental health of patients during orthodontic treatment.
Humans
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Consensus
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Dental Caries/etiology*
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Dental Enamel/pathology*
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Tooth Demineralization/etiology*
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Tooth Remineralization
4.Value of Cardiac Magnetic Resonance Feature Tracking Technique in Evaluating Right Ventricle Function in Immune Checkpoint Inhibitor Induced Myocarditis
Peijun LIU ; Yining WANG ; Yi LI ; Lu LIN ; Xiao LI ; Yingxian LIU ; Hanping WANG ; Jian CAO ; Shihai ZHAO ; Jian WANG
Medical Journal of Peking Union Medical College Hospital 2025;16(6):1400-1405
To investigate the clinical value of cardiac magnetic resonance feature tracking (CMR-FT) technology in the assessment of the right ventricle function in patients with immune checkpoint inhibitor (ICIs)-related myocarditis. Patients who visited Peking Union Medical College Hospital from April 2022 to April 2024, were diagnosed as ICIs-related myocarditis by cardiologists, and had normal right ventricular ejection fraction (RVEF) were enrolled in myocarditis group. Meanwhile, healthy individuals without cardiovascular diseases were selected as healthy control group. All subjects underwent cardiac magnetic resonance (CMR) examinations. Cardiac function parameters of the left and right ventricles were measured in the subjects, including left ventricular ejection fraction (LVEF), RVEF, left ventricular end-systolic volume index (LVESVI), left ventricular end-diastolic volume index (LVEDVI), right ventricular end-systolic volume index (RVESVI), and right ventricular end-diastolic volume index (RVEDVI). Additionally, myocardial strain of the left and right ventricles were recorded, encompassing left ventricular global longitudinal strain (LV-GLS), left ventricular global circumferential strain (LV-GCS), left ventricular global radial strain (LV-GRS), right ventricular global longitudinal strain (RV-GLS), right ventricular global circumferential strain (RV-GCS), and right ventricular global radial strain (RV-GRS). A total of 30 patients were induded in the myocarditis group and 20 in the healthy control group. The LVEF in the myocarditis group was was lower than that in the control group [(58.0±6.9)% Right ventricular myocardial strain obtained through CMR-FT technology can reveal early right ventricular cardiac dysfunction in patients with ICIs-related myocarditis, providing crucial evidence for early clinical prevention and timely intervention.
5.Evolution of global disease burden,risk factors and trend projection of chronic obstructive pulmonary disease among individuals under 50 years old from 1990 to 2021
Yide WANG ; Hongxia DUAN ; Yingqi WANG ; Yidie BAO ; Linhong JIANG ; Xiaoyu HAN ; Peijun LI ; Weibing WU ; Xiaodan LIU
Journal of Army Medical University 2025;47(12):1388-1400
Objective To systematically assess the spatiotemporal distribution,risk factors,and future trends of chronic obstructive pulmonary disease(COPD)among individuals under 50 years of age globally from 1990 to 2021 based on Global Burden of Disease(GBD)data in order to provide support for the formulation of prevention and control strategies of the disease.Methods The GBD data from 1990 to 2021 were analyzed for the incidence,mortality,disability-adjusted life years(DALYs),and estimated annual percentage change(EAPC)of COPD in<50-year-old individuals across 204 countries and regions.The data were stratified by age,sex,region,country,and sociodemographic index(SDI).The COPD trends until 2035 were predicted.Results In 2021,the global incidence of early-onset COPD was estimated at 2.5 million cases(95%uncertainty interval:2.09~2.96 million),representing a 50.55%increase compared to 1990.Significant regional heterogeneity was observed,with low SDI regions experiencing a 134.08%increase,whereas high SDI regions exhibited a rise-then-fall trend.Risk factor analysis identified environmental and occupational exposures(air pollution,ambient ozone pollution,household air pollution from solid fuels,etc.)and smoking as the primary etiological factors.Notably,household solid fuel exposure accounted for 50.90%of COPD-related deaths in low SDI regions,compared to only 0.03%in high SDI regions.Projections indicated that by 2035,the global burden of early-onset COPD will increase to 2.59 million cases.Conclusion The global disease burden of COPD among people under 50 years increased significantly from 1990 to 2021,with pronounced disparities across regions and socioeconomic levels.COPD deaths in low-SDI regions are strongly associated with solid fuel exposure and particulate matter pollution,and these regions are expected to remain the main drivers of global COPD incidence growth through 2035.
6.Historical transformation of healthy promotion patterns among children and adolescents in China
Chinese Journal of School Health 2024;45(1):11-15
Abstract
In order to identify new pattern and experience of school health, and to elaborate on the progress and trends in children and adolescents health promotion, the present article presents historical changes in health promotion approaches for children and adolescents in China, making strategic shift from "prevention and treatment of student common disease centered" to "student healthy development centered", fostering policy changes from "special school health services" to " comprehensive school health services", enacting the paradigm shift from "biomedical disease prevention and health care" model to "promoting social and behavioral success for learning" model, using various methods including needs analysis, trend research and judgment, system evaluation, and empirical evidence. The fast, substantial and extensive transformation delivers sustainable long term value and will continue to respond to the needs of the times and make steady and long term progress.
7.Identification and Analysis of SND1 as an Oncogene and Prognostic Biomarker for Lung Adenocarcinoma
ZHANG RUIHAO ; HUANG HUA ; ZHU GUANGSHENG ; WU DI ; CHEN CHEN ; CAO PEIJUN ; DING CHEN ; LIU HONGYU ; CHEN JUN ; LI YONGWEN
Chinese Journal of Lung Cancer 2024;27(1):25-37
Background and objective Transcription factor(TF)can bind specific sequences that either promotes or represses the transcription of target genes,and exerts important effects on tumorigenesis,migration,invasion.Staphylococcal nuclease-containing structural domain 1(SND1),which is a transcriptional co-activator,is considered as a promising target for tumor therapy.However,its role in lung adenocarcinoma(LUAD)remains unclear.This study aims to explore the role of SND1 in LUAD.Methods Data from The Cancer Genome Atlas(TCGA),Gene Expression Omnibus(GEO),Clinical Pro-teomic Tumor Analysis Consortium(CPTAC),and Human Protein Atlas(HPA)database was obtained to explore the associa-tion between SND1 and the prognosis,as well as the immune cell infiltration,and subcellular localization in LUAD tissues.Furthermore,the functional role of SND1 in LUAD was verified in vitro.EdU assay,CCK-8 assay,flow cytometry,scratch assay,Transwell assay and Western blot were performed.Results SND1 was found to be upregulated and high expression of SND1 is correlated with poor prognosis of LUAD patients.In addition,SND1 was predominantly present in the cytoplasm of LUAD cells.Enrichment analysis showed that SND1 was closely associated with the cell cycle,as well as DNA replication,and chro-mosome segregation.Immune infiltration analysis showed that SND1 was closely associated with various immune cell popula-tions,including T cells,B cells,cytotoxic cells and dendritic cells.In vitro studies demonstrated that silencing of SND1 inhib-ited cell proliferation,invasion and migration of LUAD cells.Besides,cell cycle was blocked at G,phase by down-regulating SND1.Conclusion SND1 might be an important prognostic biomarker of LUAD and may promote LUAD cells proliferation and migration.
8. Reflections on the teaching of infectious diseases based on the One Health concept
CHANG Qiaocheng ; MENG Fancun ; CAO Zicheng ; LIU Weidong ; ZUO Peijun ; LI Liping ; LU Jiahai
China Tropical Medicine 2024;24(1):111-
Infectious disease is a major public health problem threatening human health and social development, and infectious disease teaching is an important part of public health education. However, traditional infectious disease teaching faces challenges such as overly theoretical and fragmented content, overly traditional and monotonous methods, and a narrow and isolated vision, which makes it difficult to adapt to the current complex and changing situation of infectious disease prevention and control. The “One Health” concept emphasizes interdisciplinary, cross-sectoral, and cross-regional communication and cooperation to achieve the harmonious unity of health for humans, animals, and the environment, which is significant in preventing and controlling infectious diseases. This paper proposes some ideas for reforming infectious disease teaching based on the One Health concept, which aims to improve the quality and effectiveness of infectious disease teaching by recognizing the close connection between human health, animal health, and environmental health. Specifically, it is suggested to reform the teaching in four aspects: introducing the basic concepts, principles, and practices of One Health, increasing the content of infectious diseases related to One Health, adopting diversified and interactive teaching methods, and establishing cross-disciplinary teaching cooperation. Concrete recommendations are provided for each aspect. This paper argues that reforming infectious disease teaching based on the One Health concept is conducive to cultivating public health talents with global vision, systems thinking, and cross-disciplinary collaboration capabilities, providing robust talent support for coping with emerging, re-emerging, and endemic infectious disease threats.
9.Rehabilitation effects of traditional Chinese medicine exercise therapy on chronic obstructive pulmonary disease
Jiacheng SHI ; Peijun LI ; Linhong JIANG ; Yingqi WANG ; Yidie BAO ; Xinliao DENG ; Hongxia DUAN ; Yuchen HE ; Yuan ZHU ; Xiaodan LIU
Journal of Navy Medicine 2024;45(5):549-554
Chronic obstructive pulmonary disease(COPD)has become a common chronic disease in the adult in recent years,and more attention has been gradually paid to its prevention and treatment.This paper reviewed the clinical studies about the effect of traditional Chinese medicine(TCM)exercise therapy on COPD,and indicated that TCM exercise therapy can improve the rehabilitation of COPD patients.TCM exercise therapies,such as Tai Chi,Wuqinxi,Baduanjin,and Liuzijue,have been shown to significantly improve lung function,inflammation levels,and exercise capacity in COPD patients in recent studies.Tai Chi significantly improves patient's respiratory problems although lung function indices are not changed.Liuzijue enhances the strength and endurance of respiratory muscles and limbs.Baduanjin helps to improve patient's cognitive and emotional states.Overall,TCM exercise therapy provides an effective rehabilitation option for COPD patients.However,more clinical controlled trials are needed to further confirm their effectiveness and to develop appropriate rehabilitation programs for COPD patients.
10.Fasudil exerts a protective effect on down-regulation of IL-6 expression by inhibiting the NOTCH signaling pathway in EAM mice
Yanjun LI ; Yuxing WANG ; Jiakai YANG ; Peijun ZHANG ; Wanrong LI ; Wei ZHANG ; Yangqing LIU ; Nianping ZHANG
Journal of Xi'an Jiaotong University(Medical Sciences) 2023;44(1):82-88
【Objective】 To explore the effect and mechanism of Fasudil in the treatment of experimental autoimmune myocarditis (EAM) in mice so as to provide a theoretical basis for the clinical use of Fasudil in treating myocarditis. 【Methods】 Balb/c male mice were used as the research objects, and the EAM mice model was constructed using MyHC-α614-629 polypeptide. Mononuclear cells were isolated and cultured to detect the number of mononuclear cells in mouse spleen. Inflammation infiltration, fibrosis and IL-6 expression in mouse myocardial tissue were detected by HE staining, Masson staining and immunohistochemistry, respectively. The protein expressions of Notch1 and IL-6 were detected by Western blotting. qRT-PCR was used to detect the expressions of pro-inflammatory factors (IL-1α, IL-1β and IL-6) as well as key genes of TLRs and NOTCH signaling pathway. 【Results】 EAM mice showed increased HW, decreased BW, increased HW/e-BW, and increased inflammatory infiltration and fibrosis in myocardial tissue. The above-mentioned symptoms or pathological features were improved in EAM mice treated with Fasudil. The analysis showed that the pro-inflammatory factors IL-1α, IL-1β and IL-6 in the myocardial tissue of EAM mice were significantly increased, but only the expression of IL-6 was statistically different after Fasudil treatment compared with the control group. In addition, TLRs signaling pathway might also play an important role in the EAM mice treated with Fasudil. The expressions of IL-6 and Notch1 were consistent, and the expressions of the key genes of NOTCH signaling pathway (Notch1, Hes1 and Jag2) were down-regulated after Fasudil treatment. 【Conclusion】 Fasudil exerts a protective effect on down-regulation of IL-6 expression by inhibiting the NOTCH signaling pathway in EAM mice.


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