1.Application of Yttrium-90 microsphere selective internal radiation therapy in downstaging and conversion of hepatocellular carcinoma: a case report
Ziwei LIANG ; Tiantian ZHANG ; Yong LIAO ; Xin HUANG ; Bin LIANG ; Zhongbin HANG ; Yan ZHANG ; Lin ZHANG ; Xiaobin FENG ; Li HUO
Chinese Journal of Clinical Medicine 2025;32(1):41-45
This case report describes a 68-year-old male patient diagnosed with primary hepatocellular carcinoma (HCC). After receiving Yttrium-90 microsphere selective internal radiation therapy (90Y-SIRT), the tumor significantly reduced in size, and tumor markers alpha fetoprotein (AFP) and abnormal prothrombin (PIVKA-Ⅱ) decreased. Postoperative pathological results showed minimal residual tumor cells, indicating that 90Y-SIRT has good efficacy and safety in downstaging and conversion of HCC, thereby facilitating subsequent surgical resection.
2.Distribution characteristics of self-reported diseases and occupational injuries among workers in manufacturing enterprises
Lin ZHANG ; Zhi’an LI ; Yishuo GU ; Juan QIAN ; Chunhua LU ; Jianjian QIAO ; Yong QIAN ; Zeyun YANG ; Xiaojun ZHU
Journal of Environmental and Occupational Medicine 2025;42(2):165-170
Background Diseases severely affect the efficiency of workers. Comorbidity refers to the coexistence of two or more chronic diseases or health problems in the same individual. Previous studies have primarily focused on occupational injuries caused by environmental exposures, while the analysis of the epidemiological characteristics of self-reported diseases and occupational injuries among manufacturing workers has been insufficient. Objective To analyze the distribution of self-reported diseases and occupational injuries among manufacturing workers, the strength of correlation between different diseases, and common disease combinations, and to preliminarily explore the relationship between self-reported diseases and occupational injuries. Methods A cross-sectional survey was conducted to investigate the occupational injuries of
3.The Relationship of Transcription Factor BRF1 Expression to Tumor and Cardiomyopathy
Li-Ling ZHENG ; Yong-Luan LIN ; Mei-Ling CHEN ; Zheng-Yan ZHONG ; Shuping ZHONG
Progress in Biochemistry and Biophysics 2025;52(9):2241-2251
TFIIB-related factor 1 (BRF1) is an important transcription factor. It specifically regulates the transcription of RNA polymerase III-dependent genes (RNA Pol III genes). The products of these genes are some small non-coding RNAs, including transfer RNAs (tRNAs) and 5S ribosomal RNAs (5S rRNA). The transcription levels of tRNAs and 5S rRNA vary with changes in intracellular BRF1 amounts. tRNAs and 5S rRNA play a crucial role in determining protein synthesis. Studies have demonstrated that dysregulation of tRNAs and 5S rRNA is closely related to cell growth, proliferation, transformation, and even tumorigenesis. BRF1 is a key factor determining the generation of tRNAs and 5S rRNA. Increasing BRF1 expression enhances cell proliferation and transformation, promoting tumor development. In contrast, repressing BRF1 activity decreases the rates of cell proliferation and transformation, and inhibits tumor growth. High levels of BRF1 are found in the samples of patients suffering from hepatocellular carcinoma, breast cancer, gastric carcinoma, lung cancer, prostate carcinoma, and other cancers. It indicates that high levels of BRF1 are closely related to the occurrence of human cancer and may be a common landmark of tumors. But there is discrepancy in the regulatory mechanisms and signaling pathways of BRF1 overexpression in different cancers. In general, high levels of BRF1 in patients suffering from cancer show short survival period and poor prognosis. However, there is one exception, namely breast cancer. Approximate 80% of cases of breast cancer are estrogen receptor-positive (ER+) and 20% are ER-. The cases with high levels of BRF1 reveal longer survival period and better prognosis after they accepted the hormone treatment by Tamoxifen (Tam), compared to the cases with low level BRF1. It seems like a contradiction. Most of the cases with high levels of BRF1 belong to ER+ status. Tam has been used to treat ER+ cases of breast cancer after diagnosis and surgery. Thus, hormone therapy, such as Tam, is more effective on these patients. This is because, on one hand, that Tam competes with E2 (17β-estradiol) to bind to estrogen receptor α (ERα), but does not dissociate to occupy the receptors, blocking E2 binding to this receptor and inhibiting its biological effects. On other hand, Tam can inhibit the expression of BRF1, leading to a decline of intracellular BRF1 levels. Therefore, the actual levels of BRF1 are lower in the patients with ER+ breast cancer. It appears the prognosis of the high BRF1 expression cases better than that of the low BRF1 expression cases. Myocardial hypertrophy manifests magnification of cardiomyocyte volume rather than number increasing in the postnatal heart. Myocardial hypertrophy is a critical risk factor underlying cardiovascular diseases. No matter how myocardial hypertrophy occur, it will ultimately lead to myocardial dysfunction and heart failure. Hypertrophic growth of cardiomyocytes requires a large amount of protein synthesis to meet its needs of cardiomyocyte growth. Animal models and cell experiments have shown that myocardial hypertrophy stimulates a significant increase in BRF1 expression and transcription of tRNAs and 5S rRNA. Interestingly, elevated levels of BRF1 are found in the myocardium tissues of patients with myocardial hypertrophy. These studies demonstrate that BRF1 indeed plays a critical role in myocardial hypertrophy. In summary, high levels of BRF1 are found in patients suffering from different cancers and myocardial hypertrophy. It implies that BRF1 is a promising biological target of cancer and cardiomyopathy. BRF1 is expected to become a common biomarker for early diagnosis and prognostic observation of different human cancers. It is also an important biomarker for the diagnosis and treatment of cardiomyopathy. BRF1 not only holds an important position in the field of basic medical research but also has great prospects for translational medicine. In the present article, we summarize the progress on studies of BRF1 expressions in cancer and cardiomyopathy, proposes future research directions. It is a new research area. Here, we emphasize the significancy of BRF overexpression in the two huge diseases of human, cancer and cardiomyopathy to raise people's attention to this field.
4.Recommendations for enhanced primary series (third dose) COVID-19 vaccination for people with rheumatic diseases: chapter of Rheumatologists, College of Physicians, Singapore.
Chuanhui XU ; Manjari LAHIRI ; Amelia SANTOSA ; Li-Ching CHEW ; Stanley ANGKODJOJO ; Melonie SRIRANGANATHAN ; Warren FONG ; Thaschawee ARKACHAISRI ; Ernest SURESH ; Kok Ooi KONG ; Aisha LATEEF ; Tau Hong LEE ; Keng Hong LEONG ; Andrea LOW ; Teck Choon TAN ; Ying-Ying LEUNG
Singapore medical journal 2025;66(10):532-539
INTRODUCTION:
This review aims to provide evidence-based recommendations for an enhanced primary series (third dose) coronavirus disease 2019 (COVID-19) vaccination in people with rheumatic diseases (PRDs) in the local and regional context.
METHODS:
Literature reviews were performed regarding the necessity, efficacy, safety and strategies for enhanced primary series COVID-19 vaccination in PRDs. Recommendations were developed based on evidence according to the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology. Evidence was synthesised by eight working group members, and the consensus was achieved by a Delphi method with nine members of an expert task force panel.
RESULTS:
Two graded recommendations and one ungraded position statement were developed. PRDs have impaired immunogenicity from the COVID-19 vaccine and are at an increased risk of postvaccine breakthrough severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and poor clinical outcomes, compared to the general population. We strongly recommend that PRDs on immunomodulatory drugs be offered a third dose of the messenger RNA (mRNA) vaccine as part of an enhanced primary series, after the standard two-dose regimen. We conditionally recommend that the third dose of mRNA vaccine against SARS-CoV-2 be given at least 4 weeks after the second dose or as soon as possible thereafter. There is insufficient data to inform whether the third mRNA vaccine should be homologous or heterologous in PRDs.
CONCLUSION
These recommendations that were developed through evidence synthesis and formal consensus process provide guidance for an enhanced primary series COVID-19 vaccination in PRDs.
Humans
;
COVID-19/prevention & control*
;
COVID-19 Vaccines/administration & dosage*
;
Rheumatic Diseases/immunology*
;
Singapore
;
SARS-CoV-2
;
Vaccination/methods*
;
Delphi Technique
;
Immunization, Secondary
5.Presenting characteristics, histological subtypes and outcomes of adult central nervous system tumours: retrospective review of a surgical cohort.
Mervyn Jun Rui LIM ; Yilong ZHENG ; Sean Wai-Onn ENG ; Celest Wen Ting SEAH ; Shuning FU ; Lucas Zheng Long LAM ; Joel Yat Seng WONG ; Balamurugan VELLAYAPPAN ; Andrea Li-Ann WONG ; Kejia TEO ; Vincent Diong Weng NGA ; Sein LWIN ; Tseng Tsai YEO
Singapore medical journal 2025;66(10):545-550
INTRODUCTION:
The most recent local study on the incidence of histological subtypes of all brain and spinal tumours treated surgically was published in 2000. In view of the outdated data, we investigated the presenting characteristics, histological subtypes and outcomes of adult patients who underwent surgery for brain or spinal tumours at our institution.
METHODS:
A single-centre retrospective review of 501 patients who underwent surgery for brain or spinal tumours from 2016 to 2020 was conducted. The inclusion criteria were (a) patients who had a brain or spinal tumour that was histologically verified and (b) patients who were aged 18 years and above at the time of surgery.
RESULTS:
Four hundred and thirty-five patients (86.8%) had brain tumours and 66 patients (13.2%) had spinal tumours. Patients with brain tumours frequently presented with cranial nerve palsy, headache and weakness, while patients with spinal tumours frequently presented with weakness, numbness and back pain. Overall, the most common histological types of brain and spinal tumours were metastases, meningiomas and tumours of the sellar region. The most common complications after surgery were cerebrospinal fluid leak, diabetes insipidus and urinary tract infection. In addition, 15.2% of the brain tumours and 13.6% of the spinal tumours recurred, while 25.7% of patients with brain tumours and 18.2% of patients with spinal tumours died. High-grade gliomas and metastases had the poorest survival and highest recurrence rates.
CONCLUSION
This study serves as a comprehensive update of the epidemiology of brain and spinal tumours and could help guide further studies on brain and spinal tumours.
Humans
;
Retrospective Studies
;
Female
;
Male
;
Middle Aged
;
Adult
;
Aged
;
Central Nervous System Neoplasms/pathology*
;
Brain Neoplasms/pathology*
;
Treatment Outcome
;
Postoperative Complications
;
Young Adult
;
Spinal Neoplasms/pathology*
;
Neoplasm Recurrence, Local
;
Aged, 80 and over
;
Adolescent
7.Clinics in diagnostic imaging (223).
Wai Keat LAU ; Natalie Li Xuan LIM ; Ivandito KUNTJORO ; Lynette Li San TEO
Singapore medical journal 2025;66(6):343-347
9.Percutaneous coronary intervention vs . medical therapy in patients on dialysis with coronary artery disease in China.
Enmin XIE ; Yaxin WU ; Zixiang YE ; Yong HE ; Hesong ZENG ; Jianfang LUO ; Mulei CHEN ; Wenyue PANG ; Yanmin XU ; Chuanyu GAO ; Xiaogang GUO ; Lin CAI ; Qingwei JI ; Yining YANG ; Di WU ; Yiqiang YUAN ; Jing WAN ; Yuliang MA ; Jun ZHANG ; Zhimin DU ; Qing YANG ; Jinsong CHENG ; Chunhua DING ; Xiang MA ; Chunlin YIN ; Zeyuan FAN ; Qiang TANG ; Yue LI ; Lihua SUN ; Chengzhi LU ; Jufang CHI ; Zhuhua YAO ; Yanxiang GAO ; Changan YU ; Jingyi REN ; Jingang ZHENG
Chinese Medical Journal 2025;138(3):301-310
BACKGROUND:
The available evidence regarding the benefits of percutaneous coronary intervention (PCI) on patients receiving dialysis with coronary artery disease (CAD) is limited and inconsistent. This study aimed to evaluate the association between PCI and clinical outcomes as compared with medical therapy alone in patients undergoing dialysis with CAD in China.
METHODS:
This multicenter, retrospective study was conducted in 30 tertiary medical centers across 12 provinces in China from January 2015 to June 2021 to include patients on dialysis with CAD. The primary outcome was major adverse cardiovascular events (MACE), defined as a composite of cardiovascular death, non-fatal myocardial infarction, and non-fatal stroke. Secondary outcomes included all-cause death, the individual components of MACE, and Bleeding Academic Research Consortium criteria types 2, 3, or 5 bleeding. Multivariable Cox proportional hazard models were used to assess the association between PCI and outcomes. Inverse probability of treatment weighting (IPTW) and propensity score matching (PSM) were performed to account for potential between-group differences.
RESULTS:
Of the 1146 patients on dialysis with significant CAD, 821 (71.6%) underwent PCI. After a median follow-up of 23.0 months, PCI was associated with a 43.0% significantly lower risk for MACE (33.9% [ n = 278] vs . 43.7% [ n = 142]; adjusted hazards ratio 0.57, 95% confidence interval 0.45-0.71), along with a slightly increased risk for bleeding outcomes that did not reach statistical significance (11.1% vs . 8.3%; adjusted hazards ratio 1.31, 95% confidence interval, 0.82-2.11). Furthermore, PCI was associated with a significant reduction in all-cause and cardiovascular mortalities. Subgroup analysis did not modify the association of PCI with patient outcomes. These primary findings were consistent across IPTW, PSM, and competing risk analyses.
CONCLUSION
This study indicated that PCI in patients on dialysis with CAD was significantly associated with lower MACE and mortality when comparing with those with medical therapy alone, albeit with a slightly increased risk for bleeding events that did not reach statistical significance.
Humans
;
Percutaneous Coronary Intervention/methods*
;
Male
;
Female
;
Coronary Artery Disease/drug therapy*
;
Retrospective Studies
;
Renal Dialysis/methods*
;
Middle Aged
;
Aged
;
China
;
Proportional Hazards Models
;
Treatment Outcome
10.Identification strategy of cold and hot properties of Chinese herbal medicines based on artificial intelligence and biological experiments.
Lin LIN ; Pengcheng ZHAO ; Zhao CHEN ; Bin LIU ; Yuexi WANG ; Qi GENG ; Li LI ; Yong TAN ; Xiaojuan HE ; Li LI ; Jianyu SHI ; Cheng LU
Chinese Medical Journal 2025;138(6):745-747

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