1.Analysis on occupational health status among radiation workers in Guangdong Province in 2020
Meimei ZHONG ; Zhijia WU ; Xiangyuan HUANG ; Yingyi PENG ; Zhifang LIU ; Qiying NONG ; Na ZHAO
China Occupational Medicine 2024;51(3):341-344
Objective To analyze the occupational health status of radiation workers in Guangdong Province. Methods A total of 8 913 radiation workers who underwent occupational medical examination (OME) in Guangdong Province Hospital for Occupational Disease Prevention and Treatment in 2020 were selected as the exposure group, and 2 024 non-radiological workers who underwent health examination in the same hospital in the same period of time were selected as the control group using convenient sampling method. The study analyzed the prevalence of abnormalities in thyroid, eye lens, blood pressure, complete blood count and micronucleus in individuals of the two groups. Results The abnormal rates of eye lens, blood pressure and complete blood count in the radiation workers in the exposure group were higher than those in the control group (23.3% vs 8.0%, 18.6% vs 9.0%, 18.1% vs 8.5%, all P<0.01). However, there was no significant difference in the abnormal rates of thyroid and micronucleus in workers between these two groups (12.8% vs 11.5%, 0.1% vs 0.0%, all P>0.05). The abnormal rates of thyroid, eye lens and blood pressure in radiation workers increased with the exposure period of radiation (all P<0.05). Conclusion Long-term exposure to low-dose ionizing radiation have certain effects on the thyroid, eye lens, and blood pressure of radiation workers, with a time-effect relationship of years of radiation work.
2.Association and predictive value of blood lipids and carotid atherosclerosis in the elderly
Yan LI ; Yali ZHAO ; Miao CHEN ; Meimei WANG ; Yue ZHOU ; Bingqi ZHANG ; Zhaoyu LIU
Chinese Journal of Geriatrics 2024;43(11):1475-1480
Objective:To investigate the association and predictive value of serum biomarkers with carotid atherosclerosis(CAS)in the elderly population.Methods:The data used in this study were obtained from the China Hainan Centenarian Cohort Study(CHCCS), a prospective cohort that includes elderly individuals from community populations in Hainan Province.The baseline survey was conducted between 2014 and 2019.A total of 737 elderly individuals aged 80 to 100 were included in the analysis.The study examined various factors including questionnaires, physical examination data, liver and kidney function indicators(albumin, aspartate aminotransferase, alanine aminotransferase, total bilirubin, and glomerular filtration rate), blood cell counts(red blood cells, white blood cells, platelets, neutrophil count, lymphocyte count, and monocyte count), inflammatory markers(high-sensitivity C-reactive protein), and lipid metabolism markers(total cholesterol, triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, apolipoprotein AI, and apolipoprotein B).The objective was to explore the lipids of serum biomarkers and diagnostic performance of carotid atherosclerosis.Results:The prevalence of CAS in the elderly population was found to be 80.7%.Spearman's correlation analysis and a fully adjusted multivariate logistic regression model were used to examine the relationship between CAS and various factors in elderly patients.Result showed that systolic blood pressure, heart rate, and serum apolipoprotein B levels were significantly correlated with CAS[ OR(95% CI): 1.012(1.004-1.021), 0.998(1.011-1.024); 15.796(4.914-50.772), respectively; all P<0.001].Additionally, ROC curve analysis demonstrated that the combined application of serum apolipoprotein B, systolic blood pressure, and heart rate improved the predictive value of CAS in the elderly(Area under the curve: 0.820, 95% CI: 0.782-0.858; Sensitivity: 78.8%; Specificity: 86.8%; Positive likelihood ratio: 5.97; Negative likelihood ratio: 0.24). Conclusions:Our study discovered that serum apolipoprotein B is an autonomous risk factor for CAS among the elderly.The utilization of a specific set of biomarkers, in conjunction with other risk markers, holds potential as a promising strategy for evaluating CAS in the elderly population.
3.QL1604 plus paclitaxel-cisplatin/ carboplatin in patients with recurrent or metastatic cervical cancer:an open-label, single-arm, phase II trial
Cheng FANG ; Yun ZHOU ; Yanling FENG ; Liping HE ; Jinjin YU ; Yuzhi LI ; Mei FENG ; Mei PAN ; Lina ZHAO ; Dihong TANG ; Xiumin LI ; Buzhen TAN ; Ruifang AN ; Xiaohui ZHENG ; Meimei SI ; Baihui ZHANG ; Lingyan LI ; Xiaoyan KANG ; Qi ZHOU ; Jihong LIU
Journal of Gynecologic Oncology 2024;35(6):e77-
Objective:
QL1604 is a highly selective, humanized monoclonal antibody against programmed death protein 1. We assessed the efficacy and safety of QL1604 plus chemotherapy as first-line treatment in patients with advanced cervical cancer.
Methods:
This was a multicenter, open-label, single-arm, phase II study. Patients with advanced cervical cancer and not previously treated with systemic chemotherapy were enrolled to receive QL1604 plus paclitaxel and cisplatin/carboplatin on day 1 of each 21-day cycle for up to 6 cycles, followed by QL1604 maintenance treatment.
Results:
Forty-six patients were enrolled and the median follow-up duration was 16.5 months. An 84.8% of patients had recurrent disease and 13.0% had stage IVB disease. The objective response rate (ORR) per Response Evaluation Criteria in Advanced Solid Tumors (RECIST) v1.1 was 58.7% (27/46). The immune ORR per immune RECIST was 60.9% (28/46).The median duration of response was 9.6 months (95% confidence interval [CI]=5.5–not estimable). The median progression-free survival was 8.1 months (95% CI=5.7–14.0). Fortyfive (97.8%) patients experienced treatment-related adverse events (TRAEs). The most common grade≥3 TRAEs (>30%) were neutrophil count decrease (50.0%), anemia (32.6%), and white blood cell count decrease (30.4%).
Conclusion
QL1604 plus paclitaxel-cisplatin/carboplatin showed promising antitumor activity and manageable safety profile as first-line treatment in patients with advanced cervical cancer. Programmed cell death protein 1 inhibitor plus chemotherapy may be a potential treatment option for the patient population who have contraindications or can’t tolerate bevacizumab, which needs to be further verified in phase III confirmatory study.
4.QL1604 plus paclitaxel-cisplatin/ carboplatin in patients with recurrent or metastatic cervical cancer:an open-label, single-arm, phase II trial
Cheng FANG ; Yun ZHOU ; Yanling FENG ; Liping HE ; Jinjin YU ; Yuzhi LI ; Mei FENG ; Mei PAN ; Lina ZHAO ; Dihong TANG ; Xiumin LI ; Buzhen TAN ; Ruifang AN ; Xiaohui ZHENG ; Meimei SI ; Baihui ZHANG ; Lingyan LI ; Xiaoyan KANG ; Qi ZHOU ; Jihong LIU
Journal of Gynecologic Oncology 2024;35(6):e77-
Objective:
QL1604 is a highly selective, humanized monoclonal antibody against programmed death protein 1. We assessed the efficacy and safety of QL1604 plus chemotherapy as first-line treatment in patients with advanced cervical cancer.
Methods:
This was a multicenter, open-label, single-arm, phase II study. Patients with advanced cervical cancer and not previously treated with systemic chemotherapy were enrolled to receive QL1604 plus paclitaxel and cisplatin/carboplatin on day 1 of each 21-day cycle for up to 6 cycles, followed by QL1604 maintenance treatment.
Results:
Forty-six patients were enrolled and the median follow-up duration was 16.5 months. An 84.8% of patients had recurrent disease and 13.0% had stage IVB disease. The objective response rate (ORR) per Response Evaluation Criteria in Advanced Solid Tumors (RECIST) v1.1 was 58.7% (27/46). The immune ORR per immune RECIST was 60.9% (28/46).The median duration of response was 9.6 months (95% confidence interval [CI]=5.5–not estimable). The median progression-free survival was 8.1 months (95% CI=5.7–14.0). Fortyfive (97.8%) patients experienced treatment-related adverse events (TRAEs). The most common grade≥3 TRAEs (>30%) were neutrophil count decrease (50.0%), anemia (32.6%), and white blood cell count decrease (30.4%).
Conclusion
QL1604 plus paclitaxel-cisplatin/carboplatin showed promising antitumor activity and manageable safety profile as first-line treatment in patients with advanced cervical cancer. Programmed cell death protein 1 inhibitor plus chemotherapy may be a potential treatment option for the patient population who have contraindications or can’t tolerate bevacizumab, which needs to be further verified in phase III confirmatory study.
5.QL1604 plus paclitaxel-cisplatin/ carboplatin in patients with recurrent or metastatic cervical cancer:an open-label, single-arm, phase II trial
Cheng FANG ; Yun ZHOU ; Yanling FENG ; Liping HE ; Jinjin YU ; Yuzhi LI ; Mei FENG ; Mei PAN ; Lina ZHAO ; Dihong TANG ; Xiumin LI ; Buzhen TAN ; Ruifang AN ; Xiaohui ZHENG ; Meimei SI ; Baihui ZHANG ; Lingyan LI ; Xiaoyan KANG ; Qi ZHOU ; Jihong LIU
Journal of Gynecologic Oncology 2024;35(6):e77-
Objective:
QL1604 is a highly selective, humanized monoclonal antibody against programmed death protein 1. We assessed the efficacy and safety of QL1604 plus chemotherapy as first-line treatment in patients with advanced cervical cancer.
Methods:
This was a multicenter, open-label, single-arm, phase II study. Patients with advanced cervical cancer and not previously treated with systemic chemotherapy were enrolled to receive QL1604 plus paclitaxel and cisplatin/carboplatin on day 1 of each 21-day cycle for up to 6 cycles, followed by QL1604 maintenance treatment.
Results:
Forty-six patients were enrolled and the median follow-up duration was 16.5 months. An 84.8% of patients had recurrent disease and 13.0% had stage IVB disease. The objective response rate (ORR) per Response Evaluation Criteria in Advanced Solid Tumors (RECIST) v1.1 was 58.7% (27/46). The immune ORR per immune RECIST was 60.9% (28/46).The median duration of response was 9.6 months (95% confidence interval [CI]=5.5–not estimable). The median progression-free survival was 8.1 months (95% CI=5.7–14.0). Fortyfive (97.8%) patients experienced treatment-related adverse events (TRAEs). The most common grade≥3 TRAEs (>30%) were neutrophil count decrease (50.0%), anemia (32.6%), and white blood cell count decrease (30.4%).
Conclusion
QL1604 plus paclitaxel-cisplatin/carboplatin showed promising antitumor activity and manageable safety profile as first-line treatment in patients with advanced cervical cancer. Programmed cell death protein 1 inhibitor plus chemotherapy may be a potential treatment option for the patient population who have contraindications or can’t tolerate bevacizumab, which needs to be further verified in phase III confirmatory study.
6.Exploring the mechanism of action of curcumin in the treatment of silicosis based on network pharmacology and molecular docking
Zhijia WU ; Jiayun WU ; Yuanting LIANG ; Meimei ZHONG ; Wei WEI ; Yiru QIN ; Na ZHAO
China Occupational Medicine 2023;50(4):361-369
Objective To explore the mechanism of action of curcumin in the treatment of silicosis by network pharmacology combined with molecular docking technology. Methods The targets prediction network of curcumin in treating silicosis was established based on the collection of targets of curcumin and silicosis in multiple databases, cross-targets were submitted to the STRING database, and their connectivity was analyzed by Cytoscape software. Gene ontology (GO) function analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were performed on the top 20 genes. The molecular docking was performed on the key targets to study the mechanism of action of curcumin in treating silicosis. Results A total of 311 targets related to curcumin, 270 targets related to silicosis, and 74 cross-targets were obtained from the databases. GO function analysis revealed 2 665 related pathways, and KEGG pathway enrichment analysis revealed 188 related pathways. Molecular docking results showed that curcumin had good binding ability with the targets of mitogen-activated protein kinase 3 (MAPK3), interleukin (IL) 6, serine/threonine kinase 1 (AKT1), vascular endothelial growth factor A (VEGFA), signal transducer and activator of transcription 3, albumin, Jun proto-oncogene, tumor necrosis factor (TNF), IL1B, tumor protein p53, C-C motif chemokine ligand 2 and fibronectin 1. Conclusion The therapeutical effects of curcumin on silicosis were implemented through multi-targets and multi-pathways. Curcumin may play a role in the treatment of silicosis by binding to the core targets MAPK3, IL6, AKT1, VEGFA and TNF and regulating the MAPK, IL6, TNF, phosphatidylinositol 3-kinase/protein kinase B and VEGF signaling pathways.
7.A case report of SARS-CoV-2 encephalitis
Jue SHI ; Jin SHU ; Chen ZHAO ; Meimei CAO ; Yi FU ; Li JIN
Shanghai Journal of Preventive Medicine 2023;35(3):301-303
A patient with SARS-CoV-2 infection was adimitted to Shanghai Shibei hospital of Jing'an District in early 2023. According to the patient's complaits, clinical manifestations, physical symptoms, laboratory examination, radiological image results, plus lumbar puncture, the patient was diagnosed with novel coronavirus encephalitis. The patient was discharged from the hospital after a combined treatment of Chinese and western medicine.
8.Schisandrol A protects AGEs-induced neuronal cells death by allosterically targeting ATP6V0d1 subunit of V-ATPase.
Xiaoqing ZHOU ; Shaoyang ZHAO ; Tingting LIU ; Lu YAO ; Meimei ZHAO ; Xiaoming YE ; Xiaowen ZHANG ; Qiang GUO ; Pengfei TU ; Kewu ZENG
Acta Pharmaceutica Sinica B 2022;12(10):3843-3860
Diabetes have been shown to cause progressive neuronal injury with pain and numbness via advanced glycation end-products (AGEs)-induced neuronal cell apoptosis; however, the valuable drug targets for diabetic neuropathy have been poorly reported so far. In this study, we discovered a natural small-molecule schisandrol A (SolA) with significant protective effect against AGEs-induced neuronal cell apoptosis. ATP6V0D1, a major subunit of vacuolar-type ATPase (V-ATPase) in lysosome was identified as a crucial cellular target of SolA. Moreover, SolA allosterically mediated ATP6V0D1 conformation via targeting a unique cysteine 335 residue to activate V-ATPase-dependent lysosomal acidification. Interestingly, SolA-induced lysosome pH downregulation resulted in a mitochondrial-lysosomal crosstalk by selectively promoting mitochondrial BH3-only protein BIM degradation, thereby preserving mitochondrial homeostasis and neuronal cells survival. Collectively, our findings reveal ATP6V0D1 is a valuable pharmacological target for diabetes-associated neuronal injury via controlling lysosomal acidification, and also provide the first small-molecule template allosterically activating V-ATPase for preventing diabetic neuropathy.
9.Pharmacologically targeting molecular motor promotes mitochondrial fission for anti-cancer.
Yi QIAN ; Meimei ZHAO ; Qinghua HAN ; Jingkang WANG ; Lixi LIAO ; Heng YANG ; Dan LIU ; Pengfei TU ; Hong LIANG ; Kewu ZENG
Acta Pharmaceutica Sinica B 2021;11(7):1853-1866
Mitochondrial shape rapidly changes by dynamic balance of fusion and fission to adjust to constantly changing energy demands of cancer cells. Mitochondrial dynamics balance is exactly regulated by molecular motor consisted of myosin and actin cytoskeleton proteins. Thus, targeting myosin-actin molecular motor is considered as a promising strategy for anti-cancer. In this study, we performed a proof-of-concept study with a natural-derived small-molecule J13 to test the feasibility of anti-cancer therapeutics
10.Association between apolipoprotein E polymorphism and myocardial infarction in patients with type 2 diabetes mellitus
Liang MA ; Yuan YUAN ; Yongwei JIANG ; Xiaomu KONG ; Wenquan NIU ; Xiao CONG ; Yi LIU ; Meimei ZHAO ; Peng GAO ; Shukun YAO ; Yongtong CAO
Chinese Journal of Laboratory Medicine 2021;44(10):926-930
Objective:To investigate the relationship between the E2 and E4 alleles of apolipoprotein E (apoE) gene and myocardial infarction (MI) in type 2 diabetes Mellitus (T2DM) patients, and to explore the relationship between apoE polymorphism and blood lipid metabolism.Methods:This case control study was conducted from August 2016 to March 2020 in China-Japan Friendship Hospital, 3 459 inpatients with T2DM were included including 3 044 patients without MI (T2DM group) and 415 patients with MI (T2DM+MI group). Real time fluorescent quantitative PCR was used to detect apoE polymorphism. Automatic biochemical analyzer was used to detect lipid levels. Logistic regression analyses were performed to determine the association of apoE with risk of MI in patients with T2DM.Results:(1) The frequency of E4 allele in T2DM+MI group (12.29%, 102/830) was significantly higher than in T2DM group (9.13%,556/6 088), while the frequency of E2 allele in T2DM+MI group (7.35%,61/830) was significantly lower than that in T2DM group (8.21%,500/6 088), P=0.012. Logistic regression analyses showed that E4 allele carrier (E3/E4+E4/E4) faced a higher risk for MI in T2DM patients ( OR=1.48, 95% CI 1.14-1.92, P=0.003), while E2 allele carrier(E2/E3+E2/E2)did not face a higher risk of MI in T2DM patients ( OR=0.88, P=0.642). (2) The levels of apoE polymorphism and blood lipid: The levels of TC, LDL-C and apoB increased in the order of E4 allele, wild type and E2 allele ( P<0.05). The levels of HDL-C, apoA1 and apoE decreased in the order of E4 allele, Wild type and E2 allele ( P<0.05). Conclusion:The E4 allele is a risk factor for MI in T2DM patients, and apoE polymorphism can affect blood lipid level in this patent cohort.

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