1.Development of cardiovascular clinical research data warehouse and real-world research.
Dan-Dan LI ; Ya-Ni YU ; Zhi-Jun SUN ; Chang-Fu LIU ; Tao CHEN ; Dong-Kai SHAN ; Xiao-Dan TUO ; Jun GUO ; Yun-Dai CHEN
Journal of Geriatric Cardiology 2025;22(7):678-689
BACKGROUND:
Medical informatics accumulated vast amounts of data for clinical diagnosis and treatment. However, limited access to follow-up data and the difficulty in integrating data across diverse platforms continue to pose significant barriers to clinical research progress. In response, our research team has embarked on the development of a specialized clinical research database for cardiology, thereby establishing a comprehensive digital platform that facilitates both clinical decision-making and research endeavors.
METHODS:
The database incorporated actual clinical data from patients who received treatment at the Cardiovascular Medicine Department of Chinese PLA General Hospital from 2012 to 2021. It included comprehensive data on patients' basic information, medical history, non-invasive imaging studies, laboratory test results, as well as peri-procedural information related to interventional surgeries, extracted from the Hospital Information System. Additionally, an innovative artificial intelligence (AI)-powered interactive follow-up system had been developed, ensuring that nearly all myocardial infarction patients received at least one post-discharge follow-up, thereby achieving comprehensive data management throughout the entire care continuum for high-risk patients.
RESULTS:
This database integrates extensive cross-sectional and longitudinal patient data, with a focus on higher-risk acute coronary syndrome patients. It achieves the integration of structured and unstructured clinical data, while innovatively incorporating AI and automatic speech recognition technologies to enhance data integration and workflow efficiency. It creates a comprehensive patient view, thereby improving diagnostic and follow-up quality, and provides high-quality data to support clinical research. Despite limitations in unstructured data standardization and biological sample integrity, the database's development is accompanied by ongoing optimization efforts.
CONCLUSION
The cardiovascular specialty clinical database is a comprehensive digital archive integrating clinical treatment and research, which facilitates the digital and intelligent transformation of clinical diagnosis and treatment processes. It supports clinical decision-making and offers data support and potential research directions for the specialized management of cardiovascular diseases.
2.Traditional Chinese medicine regulates the gut microbiota-bile acids-FXR axis to intervene in the development of colorectal cancer
Ya-ni WANG ; Xiao-yu ZHANG ; Yu-ping LIU ; Xiao-ying QIN ; Jie-ge HUO ; Yan CHEN ; Huang-qin ZHANG
Acta Pharmaceutica Sinica 2024;59(11):3027-3041
The gut microbiota plays a crucial role in the development of colorectal cancer (CRC). The imbalanced gut microbiota causes damage to the body and disrupts bile acids metabolism, increases susceptibility to CRC, and affects the signaling of farnesol X receptor (FXR), thereby promoting CRC progression. Traditional Chinese medicine has unique advantages in the treatment of CRC due to its synergistic regulatory effects of multiple components, targets, and pathways. It can regulate gut microbiota, intervene in bile acids metabolism, and activate its receptor FXR to inhibit the occurrence and development of CRC. Based on this, this article discusses the main role of the gut microbiota-bile acids-FXR axis in the development of CRC, and reviews the anti CRC effects and mechanisms of traditional Chinese medicine intervention on gut microbiota-bile acids-FXR axis, in order to provide new ideas and methods for the prevention and treatment of CRC.
3.Patient-Reported Outcomes of Postoperative NSCLC Patients with or without Staged Chinese Herb Medicine Therapy during Adjuvant Chemotherapy (NALLC 2): A Randomized, Double-Blind, Placebo-Controlled Trial.
Yi-Lu ZHANG ; Li-Jing JIAO ; Ya-Bin GONG ; Jian-Fang XU ; Jian NI ; Xiao-Yong SHEN ; Jie ZHANG ; Di ZHOU ; Cheng-Xin QIAN ; Qin WANG ; Jia-Lin YAO ; Wen-Xiao YANG ; Ling-Zi SU ; Li-Yu WANG ; Jia-Qi LI ; Yi-Qin YAO ; Yuan-Hui ZHANG ; Yi-Chao WANG ; Zhi-Wei CHEN ; Ling XU
Chinese journal of integrative medicine 2024;30(11):963-973
OBJECTIVE:
To investigate whether the combination of chemotherapy with staged Chinese herbal medicine (CHM) therapy could enhance health-related quality of life (QoL) in non-small-cell lung cancer (NSCLC) patients and prolong the time before deterioration of lung cancer symptoms, in comparison to chemotherapy alone.
METHODS:
A prospective, double-blind, randomized, controlled trial was conducted from December 14, 2017 to August 28, 2020. A total of 180 patients with stage I B-IIIA NSCLC from 5 hospitals in Shanghai were randomly divided into chemotherapy combined with CHM (chemo+CHM) group (120 cases) or chemotherapy combined with placebo (chemo+placebo) group (60 cases) using stratified blocking randomization. The European Organization for Research and Treatment of Cancer (EORTC) Quality-of-Life-Core 30 Scale (QLQ-C30) was used to evaluate the patient-reported outcomes (PROs) during postoperative adjuvant chemotherapy in patients with early-stage NSCLC. Adverse events (AEs) were assessed in the safety analysis.
RESULTS:
Out of the total 180 patients, 173 patients (116 in the chemo+CHM group and 57 in the chemo+placebo group) were included in the PRO analyses. The initial mean QLQ-C30 Global Health Status (GHS)/QoL scores at baseline were 57.16 ± 1.64 and 57.67 ± 2.25 for the two respective groups (P>0.05). Compared with baseline, the chemo+CHM group had an improvement in EORTC QLQ-C30 GHS/QoL score at week 18 [least squares mean (LSM) change 17.83, 95% confidence interval (CI) 14.29 to 21.38]. Conversely, the chemo+placebo group had a decrease in the score (LSM change -13.67, 95% CI -22.70 to -4.63). A significant between-group difference in the LSM GHS/QoL score was observed, amounting to 31.63 points (95% CI 25.61 to 37.64, P<0.001). The similar trends were observed in physical functioning, fatigue and appetite loss. At week 18, patients in the chemo+CHM group had a higher proportion of improvement or stabilization in GHS/QoL functional and symptom scores compared to chemo+placebo group (P<0.001). The median time to deterioration was longer in the chemo+CHM group for GHS/QoL score [hazard ratio (HR)=0.33, 95% CI 0.23 to 0.48, P<0.0010], physical functioning (HR=0.43, 95% CI 0.25 to 0.75, P=0.0005), fatigue (HR=0.47, 95% CI 0.30 to 0.72, P<0.0001) and appetite loss (HR=0.65, 95% CI 0.42 to 1.00, P=0.0215). The incidence of AEs was lower in the chemo+CHM group than in the chemo+placebo group (9.83% vs. 15.79%, P=0.52).
CONCLUSION
The staged CHM therapy could help improve the PROs of postoperative patients with early-stage NSCLC during adjuvant chemotherapy, which is worthy of further clinical research. (Registry No. NCT03372694).
Humans
;
Carcinoma, Non-Small-Cell Lung/surgery*
;
Male
;
Middle Aged
;
Female
;
Lung Neoplasms/pathology*
;
Double-Blind Method
;
Drugs, Chinese Herbal/therapeutic use*
;
Chemotherapy, Adjuvant
;
Patient Reported Outcome Measures
;
Quality of Life
;
Aged
;
Postoperative Period
;
Prospective Studies
4.Research progress on the relationship between air pollution and gestational diabetes.
Xiao Ling ZENG ; Qing CHEN ; Heng YANG ; Jia CAO ; Ni Ya ZHOU
Chinese Journal of Preventive Medicine 2023;57(2):159-165
Gestational diabetes mellitus (GDM) is one of the most common pregnancy complications and has serious implications for the health of mothers and their offspring. In recent years, studies have confirmed that air pollution is one of the main risk factors for diabetes, and there is increasing evidence that air pollution exposure is closely related to the occurrence of gestational diabetes. However, current studies on the association between air pollutant exposure and the incidence of gestational diabetes are inconsistent, and the window period of pollutant exposure is still unclear. Limited mechanistic studies suggest that airborne particulate matter and gaseous pollutants may affect GDM through multiple mechanisms, including inflammation, oxidative stress, disruption of adipokine secretion, and imbalance of intestinal flora. This review summarizes the relationship between air pollutant exposure and the incidence of GDM in recent years, as well as the possible molecular mechanism of the occurrence and development of GDM caused by air pollutants, in order to provide scientific basis for preventing pollutant exposure, reducing the risk of GDM, improving maternal and fetal outcomes and improving the quality of the birth population.
Pregnancy
;
Female
;
Humans
;
Diabetes, Gestational/epidemiology*
;
Air Pollution/analysis*
;
Air Pollutants/analysis*
;
Particulate Matter/analysis*
;
Risk Factors
;
Maternal Exposure/adverse effects*
5.Meta-analysis and GRADE evaluation of Guanxinning Tablets in treatment of angina pectoris of coronary heart disease.
Xiao-Ying LI ; Dong-Xia SUN ; Ya-Ni XU ; Xiao-Han GAO ; Kai-Fang FAN
China Journal of Chinese Materia Medica 2023;48(1):247-255
This study aims to evaluate the efficacy and safety of Guanxinning Tablets+conventional western medicine in the treatment of angina pectoris of coronary heart disease, and provide evidence-based references for clinical medication. Retrieved from CNKI, Wanfang, VIP, SinoMed, PubMed, EMbase, Cochrane Library, randomized controlled trial(RCT) about Guanxinning Tablets for the treatment of angina pectoris of coronary heart disease from the inception to April 2022 were collected. After literature screening and data extraction, the bias risk assessment tool recommended by the Cochrane evaluation manual handbook 5.1.0 was used to evaluate the quality of the included literature, and RevMan 5.3 and Stata 14.0 were used for Meta-analysis. Eighteen RCTs were finally included, involving 2 281 patients. Meta-analysis showed that, compared with conventional western medicine treatment alone, Guanxinning Tablets+conventional western medicine significantly improved angina pectoris efficacy(RR=1.33, 95%CI[1.13, 1.57], P=0.000 8), electrocardiogram efficacy(RR=1.32, 95%CI[1.02, 1.71], P=0.03), and exercise duration(MD=59.53, 95%CI[39.16, 79.90], P<0.000 01) and reduced the incidence of cardiovascular events(MACE)(RR=0.43, 95%CI[0.30, 0.61], P<0.000 01), high sensitivity C-reactive protein(hs-CRP)(MD=-2.75, 95%CI[-3.71,-1.79], P<0.000 01), and endothelin-1(ET-1) levels(MD=-9.34, 95%CI[-11.36,-7.32], P<0.000 01). There was no statistically significant difference in the incidence of adverse reactions between two groups(RR=0.91, 95%CI[0.68, 1.22], P=0.52). Subgroup analysis showed that Guanxinning Tablets may have better short-term efficacy(less than 6 months) in the treatment of heart-blood stasis syndrome. GRADE grading showed that angina pectoris efficacy, electrocardiogram efficacy, MACE, and ET-1 were in the medium grade, hs-CRP and adverse reactions were in the low grade, and exercise duration was in the extremely low grade. In conclusion, the efficacy of Guanxinning Tablets+conventional western medicine is better than conventional western medicine treatment alone, with good safety. Therefore, it is recommended for the short-term treatment of patients with heart-blood stasis syndrome. However, the evidence quality of some results is low, and more rigo-rous RCT is still needed to enhance the reliability of evidence.
Humans
;
C-Reactive Protein
;
Reproducibility of Results
;
Drugs, Chinese Herbal/adverse effects*
;
Angina Pectoris/drug therapy*
;
Coronary Disease/drug therapy*
;
Tablets
6.Hepatitis B virus X protein promotes podocyte pyroptosis in hepatitis B virus-associated glomerulonephritis by down-regulating microRNA -223 targeting NLRP3 inflammasome.
Ya Ni YU ; Yue Qi CHEN ; Bao Shuang LI ; Xiao Qian YANG ; Mo Xuan FENG ; Wei JIANG
Chinese Journal of Hepatology 2023;39(1):20-31
Objective: To investigate the potential function and related mechanism of microRNA-223 (miRNA-223) in the podocyte pyroptosis of hepatitis B virus (HBV)-associated glomerulonephritis induced by HBV X protein (HBx). Methods: HBx-overexpressing lentivirus was transfected into human renal podocytes to mimic the pathogenesis of HBV-GN. Real-time fluorescence quantitative PCR and Western blotting experiments were used to detect the mRNA and protein expression of pyroptosis-related proteins [nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3), apoptosis-associated speck-like protein containing a CARD (ASC) and caspase-1], and inflammatory factors (interleukin-1β and interleukin-18), respectively.TUNEL staining and flow cytometry were used to detect the number of pyroptosis cells. Immunofluorescence staining was used to detect the expression of podocytes biomarkers desmin and nephrin; Hoechst 33342 staining was used to observe the morphological and quantitative changes of podocyte nuclei. Enzyme-linked immunosorbent assay was used to measure caspase-1 activity. The dual luciferase reporter gene assay was used to verify the downstream target of miRNA-223. Podocytes were divided into the following nine groups: control group (no special treatment), empty plasmid group (transfected with empty plasmid), HBx overexpression group (transfected with HBx overexpression lentivirus), HBx overexpression+miRNA-223 mimic group (transfected with HBx overexpression lentivirus and miRNA-223 mimic), HBx overexpression+miRNA-223 inhibitor group (transfected with HBx overexpression lentivirus and miRNA-223 inhibitor), HBx overexpression+miRNA-223 mimic+NLRP3 group (transfected with HBx overexpression lentivirus, miRNA-223 mimic and NLRP3 overexpression plasmid), HBx overexpression+miRNA-223 mimic+ NLRP3 siRNA group (transfected with HBx overexpression lentivirus, miRNA-223 mimic and NLRP3 siRNA), HBx overexpression+miRNA-223 inhibitor+NLRP3 group (transfected with HBx overexpression lentivirus, miRNA-223 inhibitor and NLRP3 overexpression plasmid), HBx overexpression+miRNA-223 inhibitor+NLRP3 siRNA group (transfected with HBx overexpression lentivirus, miRNA-223 inhibitor and NLRP3 siRNA). Results: miRNA-223 was down-regulated in HBx overexpression group compared with the control group (P < 0.05). TUNEL and immunofluorescence staining showed that NLRP3 knockdown attenuated podocyte injury and pyroptosis induced by HBx overexpression (P < 0.05). Dual luciferase reporter gene assay demonstrated that NLRP3 was one of the downstream targets of miRNA-223. Rescue experiments revealed that NLRP3 overexpression weakened the protective effect of miRNA-223 in podocyte injury (P < 0.05). The addition of miRNA-223 mimic and NLRP3 siRNA decreased the expression of NLRP3 inflammasome and cytokines, and reduced the number of pyroptosis cells induced by HBx overexpression (all P < 0.05); The addition of miRNA-223 inhibitor and NLRP3 overexpression plasmid significantly increased the expression of NLRP3 inflammasome and cytokines, caspase-1 activity, and the number of pyroptosis cells (all P < 0.05). Conclusion: HBx may promote podocyte pyroptosis of HBV-GN via downregulating miRNA-223 targeting NLRP3 inflammasome, suggesting that miRNA-223 is expected to be a potential target for the treatment of HBV-GN.
Humans
;
Inflammasomes/metabolism*
;
NLR Family, Pyrin Domain-Containing 3 Protein/metabolism*
;
Pyroptosis
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Podocytes/metabolism*
;
Hepatitis B virus/genetics*
;
Caspase 1/metabolism*
;
Cytokines/metabolism*
;
Carrier Proteins/metabolism*
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MicroRNAs/genetics*
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Glomerulonephritis/metabolism*
;
RNA, Small Interfering
7.Recent progress in the treatment of intractable sialolithiasis.
Deng Gao LIU ; Dan Ni ZHENG ; Ya Ning ZHAO ; Ya Qiong ZHANG ; Xin YE ; Li Qi ZHANG ; Xiao Yan XIE ; Lei ZHANG ; Zu Yan ZHANG ; Guang Yan YU
Journal of Peking University(Health Sciences) 2023;55(1):8-12
Sialolithiasis occurs in approximately 0.45% to 1.20% of the general population. The typical clinical symptom manifests as a painful swelling of the affected glands after a meal or upon salivary stimulation, which extremely affects the life quality of the patients. With the development of sialendoscopy and lithotripsy, most sialoliths can be successfully removed with preservation of the gland. However, sialoliths in the deep hilar-parenchymal submandibular ducts and impacted parotid stones located in the proximal ducts continue to pose great challenges. Our research center for salivary gland diseases (in Peking University School and Hospital of Stomatology) has used sialendoscopy for 17 years and treated >2 000 patients with salivary gland calculi. The success rate was approximately 92% for submandibular gland calculi and 95% for parotid calculi. A variety of minimally invasive surgical techniques have been applied and developed, which add substantial improvements in the treatment of refractory sialolithiasis. Further, the radiographic positioning criteria and treatment strategy are proposed for these intractable stones. Most of the hilar-parenchymal submandibular stones are successfully removed by a transoral approach, including transoral duct slitting and intraductal basket grasping, while a small portion of superficial stones can be removed by a mini-incision in submandibular area. Impacted stones located in the distal third of parotid gland ducts are removed via "peri-ostium incision", which is applied to avoid a cicatricial stenosis from a direct ostium incision. Impacted parotid stones located in the middle and proximal third of the Stensen's duct are removed via a direct mini-incision or a peri-auricular flap. A direct transcutaneous mini-incision is commonly performed under local anesthesia with an imperceptible scar, and is indicated for most of impacted stones located in the middle third, hilum and intraglandular ducts. By contrast, a peri-auricular flap is performed under general anesthesia with relatively larger operational injury of the gland parenchyma, and should be best reserved for deeper intraglandular stones. Laser lithotripsy has been applied in the treatment of sialolithiasis in the past decade, and holmium ∶YAG laser is reported to have the best therapeutic effects. During the past 3 years, our research group has performed laser lithotripsy for a few cases with intractable salivary stones. From our experiences, withdrawal of the endoscopic tip 0.5-1.0 cm away from the extremity of the laser fiber, consistent saline irrigation, and careful monitoring of gland swelling are of vital importance for avoidance of injuries of the ductal wall and the vulnerable endoscope lens during lithotripsy. Larger calculi require multiple treatment procedures. The risk of ductal stenosis can be alleviated by endoscopic dilation. In summary, appropriate use of various endoscopy-assisted lithotomy helps preserve the gland function in most of the patients with refractory sialolithiasis. Further studies are needed in the following aspects: Transcervical removal of intraglandular submandibular stones, intraductal laser lithotripsy of impacted parotid stones and deep submandibular stones, evaluation of long-term postoperative function of the affected gland, et al.
Humans
;
Salivary Gland Calculi/surgery*
;
Constriction, Pathologic
;
Endoscopy
;
Salivary Ducts/surgery*
;
Lithotripsy
;
Treatment Outcome
8. Dichloroacetate and vitamin C synergistically suppress proliferation, migration and invasion of glioma U87 and U251 cells
Xiao-Yu ZHANG ; Jian LIU ; Liang-Zhao CHU ; Ni-Ya LONG ; Liang-Zhao CHU ; Jian LIU
Chinese Pharmacological Bulletin 2023;39(2):275-286
Aim To investigate the effects of dichloroacetate(DCA)combined with vitamin C(VC)on the malignant behavior of glioma U87 and U251 cells, and to explore the potential mechanism. Methods U87 and U251 cells were treated with different concentrations of DCA alone or in combination with 5 mmol·L-1 VC. The proliferation rate of each group was detected by CCK-8 method and the cooperative index was calculated. U87 and U251 cells were treated with DMSO, 15 mmol·L-1 DCA, 5 mmol·L-1 VC and their combination. The changes of clonal formation, reactive oxygen species content, apoptosis, cell cycle, migration and invasion were detected via in vitro experiments, while the proliferation of U251 cells in vivo in each group was detected by subcutaneous tumor-forming model. Western blot was used to detect the expression levels and degradation rates of BCL2A1 and CDC25A in each group of cells after network pharmacological analysis of DCA and VC targets and their value in glioma, and the expression levels of CDK4, CDK6, cytochrome C, caspase-7 and cleaved-caspase-7 were detected. Results The combined index of 15 mmol·L-1 DCA and 5 mmol·L-1 VC was the highest. Compared with the control and single drug groups, the clonal formation, migration and invasion ability of cells in combination group in vitro significantly decreased, the proliferation rate in vivo also decreased, and the content of reactive oxygen species, apoptosis rate and G1 phase arrest rate significantly increased. BCL2A1 and CDC25A proteins were important targets of DCA and VC in glioma. Compared with the control and single-drug groups, the expression levels of BCL2A1, CDC25A, CDK4, and CDK6 in the combination group were significantly reduced, and the expression levels of cytochrome C and cleaved-caspase-7 markedly increased, and the protein degradation rates of BCL2A1 and CDC25A significantly increased in the combination group. Conclusions VC can cooperate with DCA to promote the degradation of BCL2A1 and CDC25A, and inhibit the malignant behavior of glioma cells.
9.Value of Intraplaque Neovascularization on Contrast-Enhanced Ultrasonography in Predicting Ischemic Stroke Recurrence in Patients With Carotid Atherosclerotic Plaque
Zhe HUANG ; Xue-Qing CHENG ; Ya-Ni LIU ; Xiao-Jun BI ; You-Bin DENG
Korean Journal of Radiology 2023;24(4):338-348
Objective:
Patients with a history of ischemic stroke are at risk for a second ischemic stroke. This study aimed to investigate the relationship between carotid plaque enhancement on perfluorobutane microbubble contrast-enhanced ultrasonography (CEUS) and future recurrent stroke, and to determine whether plaque enhancement can contribute to risk assessment for recurrent stroke compared with the Essen Stroke Risk Score (ESRS).
Materials and Methods:
This prospective study screened 151 patients with recent ischemic stroke and carotid atherosclerotic plaques at our hospital between August 2020 and December 2020. A total of 149 eligible patients underwent carotid CEUS, and 130 patients who were followed up for 15–27 months or until stroke recurrence were analyzed. Plaque enhancement on CEUS was investigated as a possible risk factor for stroke recurrence and as a possible adjunct to ESRS.
Results:
During follow-up, 25 patients (19.2%) experienced recurrent stroke. Patients with plaque enhancement on CEUS had an increased risk of stroke recurrence events (22/73, 30.1%) compared to those without plaque enhancement (3/57, 5.3%), with an adjusted hazard ratio (HR) of 38.264 (95% confidence interval [CI]:14.975–97.767; P < 0.001) according to a multivariable Cox proportional hazards model analysis, indicating that the presence of carotid plaque enhancement was a significant independent predictor of recurrent stroke. When plaque enhancement was added to the ESRS, the HR for stroke recurrence in the high-risk group compared to that in the low-risk group (2.188; 95% CI, 0.025–3.388) was greater than that of the ESRS alone (1.706; 95% CI, 0.810–9.014). A net of 32.0% of the recurrence group was reclassified upward appropriately by the addition of plaque enhancement to the ESRS.
Conclusion
Carotid plaque enhancement was a significant and independent predictor of stroke recurrence in patients with ischemic stroke. Furthermore, the addition of plaque enhancement improved the risk stratification capability of the ESRS.
10.Burned-out testicular germ cell tumors: a clinicopathological analysis of three cases.
Ya Ping NI ; Zhi Han ZHANG ; Xiao Yan CHEN ; Jiang Shu LIU ; Xiao Qun YANG
Chinese Journal of Pathology 2023;52(4):347-352
Objective: To investigate the clinicopathological features and possible mechanisms of burned-out testicular germ cell tumors. Methods: The clinical and imaging data, histology and immunophenotypic characteristics of three cases of burned-out testicular germ cell tumors diagnosed at the Ruijin Hospital, Medical College of the Shanghai Jiaotong University, from 2016 to 2020 were retrospectively analyzed. The relevant literature was reviewed. Results: The mean age of the three patients was 32 years. Case 1 had an elevated preoperative alpha-fetoprotein level (810.18 μg/L) and underwent "radical pancreaticoduodenectomy and retroperitoneal lesion resection" for a retroperitoneal mass. Postoperative pathology showed embryonal carcinoma, which needed to exclude gonadal metastasis. Color Doppler ultrasound showed a solid mass of the right testis, with hypoechoic lesion and scattered calcification in some areas. Case 2 was a "right supraclavicular lymph node biopsy specimen." Chest X-ray showed multiple metastases in both lungs. The biopsy showed metastatic embryonic carcinoma and bilateral testicular color Doppler ultrasound revealed abnormal calcifications in the right testicle. Case 3 showed a cystic mass of the right testis with calcification and solid areas. All 3 patients underwent radical right orchiectomy. Grossly, borders of the testicular scar areas were well defined. Cross sectioning of the tumors showed a gray-brown cut surface and single focus or multiple foci of the tumor. The tumor maximum diameter was 0.6-1.5 cm. Microscopically, lymphocytes, plasma cells infiltration, tubular hyalinization, clustered vascular hyperplasia and hemosiderin laden macrophages were found in the scar. Atrophic and sclerotic seminiferous tubules, proliferation of clustered Leydig cells and small or coarse granular calcifications in seminiferous tubules were present around the scar. Seminoma and germ cell neoplasia in situ were seen in case 1, germ cell neoplasia in situ was seen in case 2 and germ cells with atypical hyperplasia were seen in case 3. Immunohistochemistry showed that embryonic carcinoma expressed SALL4, CKpan(AE1/AE3) and CD30, seminoma and germ cell tumor in situ expressed OCT3/4, SALL4 and CD117, and spermatogenic cells with atypical hyperplasia expressed CD99 and SALL4. The Ki-67 positive index was about 20%, while OCT3/4 and CD117 were both negative. Conclusions: Burned-out testicular germ cell tumors are rare. The possibility of gonad testicular metastasis should be considered first for extragonadal germ cell tumor. If fibrous scar is found in testis, it must be determined whether it is a burned-out testicular germ cell tumor. The burned-out mechanisms may be related to the microenvironment of tumor immune-mediated and local ischemic injury.
Male
;
Humans
;
Adult
;
Seminoma/secondary*
;
Cicatrix/pathology*
;
Hyperplasia
;
Retrospective Studies
;
China
;
Testicular Neoplasms/pathology*
;
Neoplasms, Germ Cell and Embryonal/surgery*
;
Calcinosis
;
Carcinoma
;
Tumor Microenvironment

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