1.Clinical analysis of 57 children with epilepsy caused by focal cortical dysplasia
Yan DONG ; He YAO ; Xinjun WANG ; Mengchun LI ; Jixue YANG ; Qiao SHAN ; Tianming JIA ; Dongming LI ; Gong'ao WU ; Haiyan WANG ; Ke ZHANG
Chinese Journal of Neuromedicine 2024;23(3):233-239
Objective:To summarize the clinical characteristics of patients with epilepsy caused by focal cortical dysplasia (FCD), and identify the influencing factors for postoperative seizure controls.Methods:Fifty-seven patients with epilepsy caused by FCD admitted to Department of Neurosurgery, Third Affiliated Hospital of Zhengzhou University from July 2019 to November 2023 were chosen; standard preoperative evaluation, surgery, postoperative management and follow-up were performed. A retrospective study of clinical data, imaging and video electroencephalogram (VEEG) data, surgical approaches, pathological findings, and follow-up data was performed; influencing factors for postoperative seizure controls were analyzed.Results:In these 57 patients with epilepsy caused by FCD, 29 were males (50.88%) and 28 were females (49.12%). Onset age was 30.00 (8.00, 74.50) months, and surgery age was 95.00 (50.00, 138.50) months. Focal to bilateral tonic-clonic seizures (42/57; 73.68%) and epileptic spasms (13/57; 22.81%) were common seizure types. Cranial MRI was positive in 34 patients (59.65%), mainly manifested as abnormal cortical gyri/sulci morphology (17/57; 29.82%). In 43 patients accepted PET-CT, hypometabolic sites were detected in 40 (93.02%), and complete agreement between PET/MRI fusion results and actual lesion sites was noted in 40 (93.02%). FCD type I was noted in 16 patients (28.07%), type II in 39 (68.42%), and type III in 2 (3.51%). By December 2023, 44 (77.19%) had Engel grading I, 4 (7.02%) had grading II, 4 (7.02%) had grading III, and 5 (8.77%) had grading IV. Children with good prognosis (Engel grading I+II) and those with poor prognosis (Engel grading III+IV) showed significant differences in terms of time from first seizure to surgery, positive/negative MRI, and regularity of postoperative ASMs ( P<0.05). Conclusions:Focal to bilateral tonic-clonic seizure is the most common seizure type in patients with epilepsy caused by FCD, and abnormal cortical gyri/sulci morphology is the most common MRI manifestation; PET/MRI fusion imaging is superior to PET-CT or MRI in identifying epileptogenic foci. Poor seizure control can be noted in patients with long onset time to surgery, with negative cranial MRI results, or with irregular postoperative ASMs.
2.Application of the Second Revision of the International Staging System (R2-ISS) in the prognostic assessment of newly diagnosed multiple myeloma
Jie YAN ; Dongming ZHOU ; Xiaoyan SHAO ; Yong XU ; Bing CHEN
Chinese Journal of Hematology 2024;45(2):170-177
Objective:To investigate the prognostic value of the Second Revision of the International Staging System (R2-ISS) in patients with newly diagnosed multiple myeloma (NDMM) .Methods:The retrospective study was performed in 326 NDMM patients with immunomodulatory drugs and/or proteasome inhibitors as the first-line treatment attending the Department of Hematology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China, from December 2012 to March 2022. The Kaplan-Meier method was used for the survival analysis, with the Log-rank test comparing the between-group differences and Cox proportional risk regression modeling A multifactorial analysis was performed.Results:①326 patients were included in the study, 190 of whom were males. The median age was 63 years, and the median followup time was 37 months. R2-ISS can effectively predict prognosis, particularly for R-ISS Ⅱ patients. The median progression-free survival (PFS) time of R2-ISS Ⅰ, R2-ISS Ⅱ, R2-ISS Ⅲ, and R2-ISS Ⅳ was 52, 29, 20, and 15 months ( P<0.001), while the median overall survival (OS) time was 91, 60, 44, and 36 months ( P<0.001). Multifactor analysis revealed that ISS Ⅱ, ISS Ⅲ, del (17p), t (4;14), 1q+, LDH increased, and age >65 years old were independent negative prognostic factors for OS. ISS Ⅱ, ISS Ⅲ, del (17p), t (4;14), 1q+, and LDH were independent negative prognostic factors for PFS. ②The C-index score of R2-ISS was 0.724, higher than that of R-ISS (0.678), indicating high prediction efficiency. ③The median PFS for 1q+-related double-hit in R2-ISS Ⅲ and Ⅳ were 20, 15 months ( P=0.084) and the median OS were 35, 36 months ( P=0.786), respectively. In R2-ISS Ⅲ, there were twenty-seven cases of 1q+-related double-hit, sixty-one cases of 1q+ single abnormality, and sixty-eight cases with no 1q+. The median PFS for the three groups were 20, 18, and 21 months ( P=0.974), while the median OS was 35, 47, and 56 months ( P=0.042), respectively. Adjusting the assignment of 1q+ to 1, the median PFS and OS of different R2-ISS stages differed significantly after regrouping ( P<0.001) . Conclusions:The prognostic stratification value of R2-ISS is higher than R-ISS, particularly in the highly heterogeneous R-ISS Ⅱ population. Adjusting the assignment of the 1q+-related double-hit can improve R2-ISS, which should be validated in future studies with multi-center and expanded cases.
3.A gallstones classification method and verification based on deep learning
Qianyun GU ; Chengli SONG ; Jiawen GUO ; Dongming YIN ; Shiju YAN ; Bo WANG ; Zhaoyan JIANG ; Hai HU
International Journal of Biomedical Engineering 2024;47(4):312-317
Objective:To establish and validate a gallstones classification method based on deep learning.Methods:A total of 618 gallstones samples were collected from East Hospital Affiliated to Tongji University, and 1 023 high-definition cross-sectional gallstones profile images were captured to construct a cross-sectional gallstones profile image dataset. Based on the traditional eight-category gallstones classification method, a lightweight network model, MobileNet V3, was trained using deep learning and transfer learning methods. The classification performance of MobileNet was evaluated using a confusion matrix with metrics such as accuracy rate, precision rate, F1 score, and recall rate. The MobileNet V3 was improved and further validated using accuracy and loss values.Results:The accuracy rate (94.17%), precision rate (94.03%), F1 score (92.96%) and recall rate (92.99%) of the improved MobileNet V3 model were better than other networks. The improved MobileNet V3 model achieved the highest accuracy rate (94.17%) in gallstones profile classification and was validated by the test set. The confusion matrix showed a weighted average of accuracy rate (92.0%), precision rate (92.6%), and F1 score (92.2%) for each category of gallstones.Conclusions:Based on deep learning, a high-accuracy gallstones classification method is proposed, which provides a new idea for the intelligent identification of gallstones.
4.Prostate cancer with normal serum PSA: a report of 6 cases and literature review
Xiao YUE ; Dongming WANG ; Chuangui LI ; Qiang WANG ; Zhihua HUANG ; Jing YAN ; Qiuchen XU
Journal of Modern Urology 2023;28(2):133-136
【Objective】 To analyze the clinical data of prostate cancer patients with normal PSA level confirmed with transperineal prostate biopsy or transurethral prostate surgery, in order to improve the diagnostic level of this disease. 【Methods】 The clinical data of 6 patients were retrospectively analyzed. The age,clinical manifestations, body mass index (BMI),prostate specific antigen density (PSAD),blood triglycerides,blood cholesterol,color ultrasound imaging,magnetic resonance imaging (MRI),pathological types and Gleason scores were analyzed. The clinical characteristics and high-risk factors were summarized. 【Results】 Two cases were confirmed with prostate biopsy and four after prostate resection. Three patients had high blood triglycerides, three were negative for bone imaging, and the other three were not examined. PSAD was 0.017 to 1.215. Color ultrasound indicated that two cases had irregular morphology, two uneven echo, and one both irregular morphology and uneven echo; all six cases had calcification. In the three cases who received MRI, two had PIRADS4 nodules, one had PIRADS5 nodules, invasion of seminal vesicle, rectum, posterior wall of urinary bladder,bilateral thickening of NVB, and lymph nodes enlargement. Pathology suggested prostatic acinar adenocarcinoma in five cases, four of which had a Gleason score of 3+3=6 and one had 5+5=10; one case suggested a high-grade neuroendocrine carcinoma. 【Conclusion】 The clinical detection rate is low for prostate cancer with normal PSA. The biopsy indications should be determined by combining the characteristics and high-risk factors to improve the detection rate.
5.Blocking Adenosine/A2AR Pathway for Cancer Therapy.
Jia LIU ; Yuequan SHI ; Xiaoyan LIU ; Dongming ZHANG ; Yu BAI ; Yan XU ; Mengzhao WANG
Chinese Journal of Lung Cancer 2022;25(7):460-467
Adenosine is a metabolite produced abundantly in the tumor microenvironment, dampening immune response in inflamed tissues via adenosine A2A receptor (A2AR) which is widely expressed on immune cells, inhibiting anti-tumor immune response accordingly. Therefore, blocking adenosine signaling pathway is of potential to promote anti-tumor immunity. This review briefly introduces adenosine signaling pathway, describes its role in regulating tumor immunity and highlights A2AR blockade in cancer therapy. Prospective anti-tumor activity of adenosine/A2AR inhibition has been revealed by preclinical data, and a number of clinical trials of A2AR antagonists are under way. Primary results from clinical trials suggest that A2AR antagonists are well tolerated in cancer patients and are effective both as monotherapy and in combination with other therapies. In the future, finding predictive biomarkers are critical to identify patients most likely to benefit from adenosine pathway blockade, and further researches are needed to rationally combine A2AR antagonists with other anti-tumor therapies.
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Adenosine/therapeutic use*
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Adenosine A2 Receptor Antagonists/therapeutic use*
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Humans
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Lung Neoplasms
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Receptor, Adenosine A2A/metabolism*
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Tumor Microenvironment
6. Silencing lncRNA GIHCG increases radiosensitivity of glioma cells by up-regulating miR-146a-3p
Xueyuan LI ; Qiankun LIU ; Shanpeng YUAN ; Yingwei ZHEN ; Lixin WU ; Wenzheng LUO ; Kang WANG ; Zhuang WANG ; Peng GAO ; Tiansong LIANG ; Dongming YAN
Chinese Journal of Radiation Oncology 2020;29(1):52-56
Objective:
To investigate the effect of lncRNA GIHCG on the radiosensitivity of glioma cells and its mechanism.
Methods:
The expression levels of GIHCG and miR-146a-3p in human brain normal glial cells HEB and glioma cell lines U251, A172, SHG139 and U87 were quantitatively measured by qRT-PCR assay. U251 and SHG139 cells were used for subsequent experiment. After silencing the expression of GIHCG or overexpressing miR-146a-3p in U251 and SHG139 cells, cell proliferation was detected by MTT assay, cell apoptosis was detected by flow cytometry, cell radiosensitivity was detected by colony formation assay and the expression levels of CDK1, CyclinD1, Bcl-2 and Bax proteins were measured by Western blot. The bioinformatics software predicted the presence of a binding site for GIHCG and miR-146a-3p. Dual luciferase reporter gene assay and qRT-PCR assay were adopted to verify the targeting relationship between GIHCG and miR-146a-3p.
Results:
Compared with HEB cells, the expression of GIHCG was significantly up-regulated in glioma U87, U251, A172 and SHG139 cells (all
7.Silencing long non-coding RNA HCP5 increases the radiosensitivity of glioma cells by up-regulating miR-508-3p expression
Xueyuan LI ; Qiankun LIU ; Shanpeng YUAN ; Tiansong LIANG ; Wenzheng LUO ; Yingwei ZHEN ; Lixin WU ; Kang WANG ; Dongming YAN
Chinese Journal of Behavioral Medicine and Brain Science 2020;29(3):207-214
Objective:To investigate the effect of long non-coding (lnc) RNA HCP5 on the radiation sensitivity of glioma cells and underlying mechanism.Methods:The glioma cells U251 and U87 were irradiated with 0, 2, 4, 6, and 8 Gy rays as different doses.si-Con, si-HCP5, pcDNA, and pcDNA-HCP5 were transfected into cells U251 and U87, recorded as si-con group, si-HCP5 group, pcDNA group, and pcDNA-HCP5 group.si-Con and si-HCP5 were transfected into cells U251 and U87, and then irradiated with 4 Gy rays, respectively, recorded as IR+ si-con group and IR+ si-HCP5 group, the cells only irradiated with 4 Gy rays were recorded as IR group.After si-HCP5 with anti-miR-con and anti-miR-508-3p was co-transfected into cell U251 and U87, respectively, irradiated with 4 Gy rays, recorded as IR+ si-HCP5+ anti-miR-con group and IR+ si-HCP5+ anti-miR-508-3p group, respectively, the transfection was performed by liposome method.RT-qPCR was used to detect the expression of miR-508-3p and HCP5.Cell clone formation assay was used to detect the radiosensitivity of glioma cells.Flow cytometry was used to detect apoptosis, dual luciferase Reporter gene detection experiments detects fluorescence activity.Results:HCP5 was highly expressed in radiation-treated glioma cells, and miR-508-3p was lowly expressed.After silenced HCP5, U251 and U87 cells had enhanced radiosensitivity and apoptotic rate((16.67±1.68) vs (3.58±0.62), t=21.929, P<0.05; (12.32±1.08) vs (4.48±0.71), t=18.198, P<0.05) was increased, and γ-H2AX( (0.45±0.04) vs (0.23±0.05), t=10.307, P<0.05; (0.38±0.04) vs (0.24±0.03), t=8.400, P<0.05), Cleaved caspase-3((0.37±0.04) vs (0.16±0.03), t=12.600, P<0.05; (0.38±0.04) vs (0.22±0.03), t=9.600, P<0.05) expressions were increased.Compared with silencing HCP5 or radiation treatment alone, silencing HCP5 and radiation treatment of U251 cells simultaneously, the apoptosis rate ((25.34±1.54) vs (16.67±1.68), t=11.413, P<0.05; (25.34±1.54) vs (11.13±1.06), t=22.802, P<0.05) was significantly increased, and γ-H2AX((0.69±0.05) vs (0.45±0.04), t=11.245, P<0.05; (0.69±0.05) vs (0.31±0.04), t=17.804, P<0.05), Cleaved caspase-3 ((0.52±0.06/0.37±0.04, t=6.240, P<0.05) (0.52±0.06/0.34±0.04, t=7.488, P<0.05) expressions were increased.The expressions of p-PI3K ((0.21±0.02) vs (0.52±0.04), t=20.795, P<0.05; (0.26±0.23 ), ( 0.67±0.07), t=5.116, P<0.05), p- AKT ((0.22±0.03) vs (0.66±0.07), t=17.332, P<0.05; (0.23±0.04) vs (0.71±0.03), t=28.800, P<0.05) in U251 and U87 cells were decreased.HCP5 can target the regulation of miR-508-3p expression; interfering with miR-508-3p reversed the effects of silent HCP5 and radiation on the radiation sensitization and apoptosis of U251 and U87 cells.It reduced the expression levels of reducing γ-H2AX and Cleaved caspase-3, while increased the expression levels of p-PI3K and p-AKT. Conclusion:Silencing lncRNA HCP5 can enhance the radiation sensitivity of glioma cells and promote apoptosis.The mechanism may be related with the miR-508-3p and PI3K/Akt signaling pathway, which will provide new targets and new ideas for glioma treatment.
8.Risk evaluation of intracranial infection in patients treated with neuroendoscopy optic nerve tube decompression
Kang WANG ; Xueyuan LI ; Dongming YAN
Chinese Journal of Postgraduates of Medicine 2019;42(5):385-388
Objective To evaluate the risk of intracranial infection in patients treated with neuroendoscopy optic nerve tube decompression, and compare the risk of intracranial infection between surgery treatment and methylprednisolone treatment. Methods The clinical data of 105 patients with traumatic optic neuropathy from January 2013 to December 2017 in the First Affiliated Hospital of Zhengzhou University were retrospectively analyzed. Among them, 74 patients were treated with transsphenoidal approach neuroendoscopy optic nerve tube decompression (operation group), and cured with antibiotics during perioperative period; 31 patients were treated with intravenous methylprednisolone sodium succinate (hormone group), and combined with mouse nerve growth factor etc. Meanwhile, broad-spectrum antibiotics were used to prevent the potential infection during the first 3 d of hospitalization. The incidence of intracranial infection was compared between 2 groups. Results The incidence of intracranial infection in operation group was 4.05%(3/74), that in hormone group was 3.23%(1/31), and there was no statistical difference between 2 groups (χ2=0.127, P>0.05). Conclusions Compared with conservative treatment, the neuroendoscopy optic nerve tube decompression has less or equivalent chance to increase the risk of intracranial infection in patients with traumatic optic neuropathy. Accordingly, it could be viewed as the first-line treatment.
9. Research progress on cardiovascular risk in juvenile idiopathic arthritis
Chinese Journal of Applied Clinical Pediatrics 2019;34(9):718-720
Juvenile idiopathic arthritis (JIA) is the most common chronic arthritis in childhood, and its pathological changes are similar to the inflammatory process of atherosclerosis.The traditional risk factors of cardiovascular disease include hypertension, dyslipidemia, obesity, diabetes, and so on.These risk factors may have a superposition effect on the inflammatory reaction of JIA and cause vascular endothelial dysfunction, but whether this will increase the risk of cardiovascular disease in JIA in the future, whether JIA is a new cardiovascular risk factor is still to to be confirmed.
10.Geriatric medical education for medical undergraduate students in UK and its implications to China
Jianlin HOU ; Dongming LIU ; Minghui YAN ; Weimin WANG
Chinese Journal of Medical Education Research 2019;18(4):337-341
In the United Kingdom,undergraduate education of geriatric medicine focuses on helping students understand or describe relevant contents,with only a few ability requirements.At most medical schools,the teaching of geriatric medicine is integrated with other clinical curriculums,such as mental health and internal medicine.The pedagogy of geriatric medicine that consists of formal and informal ones,tends to become varied and has some innovations in terms of simulation education,interdisciplinary education,and student-centered education.Based on the relevant experience in the UK,it is suggested that China should study and formulate the teaching requirements of geriatrics for undergraduate clinical medicine specialty in order to standardize and promote related work.Medical colleges and universities can better integrate geriatric knowledge into the existing curriculum system,constantly innovate geriatric teaching methods,actively use simulation teaching,student-centered education and other ways to improve the teaching effect.

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