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Zhang R, Wang N, Li Q, Cao J, Shi N, Niu Q, Liu C. Bacteremia caused by Bartonella in a 48-year-old woman with a large lung mass. Quant Imaging Med Surg 2024; 14:3162-3168. [PMID: 38617158 PMCID: PMC11007519 DOI: 10.21037/qims-23-1390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 01/23/2024] [Indexed: 04/16/2024]
Affiliation(s)
- Ranran Zhang
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
- Department of Endoscopy Center, Binzhou Medical University Hospital, Binzhou, China
| | - Nuan Wang
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
- Department of Endoscopy Center, Binzhou Medical University Hospital, Binzhou, China
| | - Qiong Li
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
- Department of Endoscopy Center, Binzhou Medical University Hospital, Binzhou, China
| | - Jingrun Cao
- Department of Endoscopy Center, Binzhou Medical University Hospital, Binzhou, China
| | - Ning Shi
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
- Department of Endoscopy Center, Binzhou Medical University Hospital, Binzhou, China
| | - Qiong Niu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
- Department of Endoscopy Center, Binzhou Medical University Hospital, Binzhou, China
| | - Chengxia Liu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
- Department of Endoscopy Center, Binzhou Medical University Hospital, Binzhou, China
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Ma H, Ma X, Yang C, Niu Q, Gao T, Liu C, Chen Y. Development and evaluation of a program based on a generative pre-trained transformer model from a public natural language processing platform for efficiency enhancement in post-procedural quality control of esophageal endoscopic submucosal dissection. Surg Endosc 2024; 38:1264-1272. [PMID: 38097750 DOI: 10.1007/s00464-023-10620-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 11/28/2023] [Indexed: 02/23/2024]
Abstract
BACKGROUND Post-procedural quality control of endoscopic submucosal dissection (ESD) is emphasized in guidelines. However, this process can be tedious and time-consuming. Recently, a pre-training model called generative pre-trained transformer (GPT) on a public natural language processing platform has emerged and garnered significant attention, whose capabilities align well with the post-procedural quality control process and have the potential to streamline it. Therefore, we developed a simple program utilizing this platform and evaluated its performance. METHODS Esophageal ESDs were retrospectively included. The manual quality control process was performed and act as reference standard. GPT's prompt was optimized through multiple iterations. A Python program was developed to automatically submit prompt with pathological report of each ESD procedure and collect quality control information provided by GPT. Its performance on quality control was evaluated with accuracy, precision, recall, and F-1 score. RESULTS 165 cases were involved into the dataset, of which 5 were utilized as the prompt optimization dataset and 160 as the validation dataset. Definitive prompt was achieved through seven iterations. Time spent on the validation dataset by GPT was 13.47 ± 2.43 min. Accuracies of pathological diagnosis, invasion depth, horizontal margin, vertical margin, vascular invasion, and lymphatic invasion of the quality control program were (0.940, 0.952) (95% CI), (0.925, 0.945) (95% CI), 0.931, 1.0, and 1.0, respectively. Precisions were (0.965, 0.969) (95% CI), (0.934, 0.954) (95% CI), and 0.957 for pathological diagnosis, invasion depth, and horizontal margin, respectively. Recalls were (0.940, 0.952) (95% CI), (0.925, 0.945) (95% CI), and 0.931 for factors as mentioned, respectively. F1-score were (0.945, 0.957) (95% CI), (0.928, 0.948) (95% CI), and 0.941 for factors as mentioned, respectively. CONCLUSIONS This quality control program was qualified of post-procedural quality control of esophageal ESDs. GPT can be easily applied to this quality control process and reduce workload of the endoscopists.
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Affiliation(s)
- Huaiyuan Ma
- Department of Gastroenterology and Hepatology, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, China
- Digestive Disease Research Institute of Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Xingbin Ma
- Department of Gastroenterology and Hepatology, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, China
- Digestive Disease Research Institute of Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Chunxiao Yang
- Department of Gastroenterology and Hepatology, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, China
- Digestive Disease Research Institute of Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Qiong Niu
- Department of Gastroenterology and Hepatology, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, China
- Digestive Disease Research Institute of Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Tao Gao
- Endoscopy Center of Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Chengxia Liu
- Department of Gastroenterology and Hepatology, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, China.
- Digestive Disease Research Institute of Binzhou Medical University Hospital, Binzhou, Shandong, China.
- Endoscopy Center of Binzhou Medical University Hospital, Binzhou, Shandong, China.
| | - Yan Chen
- Department of Gastroenterology and Hepatology, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, China.
- Digestive Disease Research Institute of Binzhou Medical University Hospital, Binzhou, Shandong, China.
- Endoscopy Center of Binzhou Medical University Hospital, Binzhou, Shandong, China.
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Zhang JT, Zhang ZR, Li XY, Zhang JS, Wang SS, Niu Q. [Hsp90 participates in the necroptosis of mouse neural cells induced by aluminum through the RIP1/RIP3/MLKL pathway]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:881-886. [PMID: 38195221 DOI: 10.3760/cma.j.cn121094-20221103-00526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Objective: To investigate whether heat shock protein 90 (HSP90) participates in the necroptosis of C57BL/6 mouse neurons and spatial memory impairment induced by Aluminum maltol [Al (mal) (3)] through RIP1/RIP3/MLKL pathway. Methods: In March 2022, Thirty-two C57 mice were randomly divided into control group, Low dose group, a medium dose group, and a high-dose group, with 8 mice in each group, and injected intraperitoneally with physiological saline, 20, 40, and 80, respectivelyμmol/kgAl (mal) (3) was administered, it was injected 5 days a week and discontinued 2 days for 60 days. Morris water maze test was used to test the spatial learning and memory ability of mice. Nissl staining was used to observe the pathological changes of brain tissue. The protein expression levels of RIP1, RIP3, MLKL and HSP90 in hippocampus were determined by Western blotting. Results: In the water maze experiment, compared with the control group, the number of mice crossing the platform decreased in each dose group, the difference was statistically significant (H=9.50, P=0.023), and the number of mice crossing the platform was statistically significant among each dose group (P <0.05). Compared with the control group, the number of hippocampal nerve cells in each dose group decreased, the arrangement was disordered, and the Nissellite bodies decreased. Western blotting results showed that compared with the control group, the expression level of RIP1 protein in the hippocampus of mice in high-dose group was higher, and the difference was statistically significant (P <0.05). The expression levels of RIP3, MLKL and HSP90 in hippocampal tissue of mice in medium and high dose groups were increased, and the differences were statistically significant (P<0.05). After siRNA intervention decreased the expression of HSP90 protein, the expressions of HSP90, RIP1, RIP3 and MLKL in Al (mal) (3) groups were increased, and the differences were statistically significant (P<0.05) . Conclusion: Through RIP1/RIP3/MLKL pathway, HSP90 is involved in neuronal programmed necrosis and spatial memory impairment induced by maltol aluminum in C57 mice.
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Affiliation(s)
- J T Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Z R Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - X Y Li
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - J S Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - S S Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Q Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Wang M, Sun S, Niu Q, Hu B, Zhao H, Geng L, Fu T, Qin H, Zheng B, Li H. Experience of management of pediatric upper gastrointestinal perforations: a series of 30 cases. Front Pediatr 2023; 11:1261336. [PMID: 37886238 PMCID: PMC10598647 DOI: 10.3389/fped.2023.1261336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 09/22/2023] [Indexed: 10/28/2023] Open
Abstract
Background This study aimed to explore the characteristics of pediatric upper gastrointestinal (UGI) perforations, focusing on their diagnosis and management. Methods Between January 2013 and December 2021, 30 children with confirmed UGI perforations were enrolled, and their clinical data were analyzed. Two groups were compared according to management options, including open surgical repair (OSR) and laparoscopic/gastroscopic repair (LR). Results A total of 30 patients with a median age of 36.0 months (1 day-17 years) were included in the study. There were 19 and 11 patients in the LR and OSR groups, respectively. In the LR group, two patients were treated via exploratory laparoscopy and OSR, and the other patients were managed via gastroscopic repair. Ten and three patients presented the duration from symptom onset to diagnosis within 24 h (p = 0.177) and the number of patients with hemodynamically unstable perforations was 4 and 3 in the LR and OSR groups, respectively. Simple suture or clip closure was performed in 27 patients, and laparoscopically pedicled omental patch repair was performed in two patients. There was no significant difference in operative time and length of hospital stay between the LR and OSR groups. Treatment failed in two patients because of severe sepsis and multiple organ dysfunction syndrome, including one with fungal peritonitis. Conclusion Surgery for pediatric UGI perforations should be selected according to the general status of the patient, age of the patient, duration from symptom onset, inflammation, and perforation site and size. Antibiotic administration and surgical closure remain the main strategies for pediatric UGI perforations.
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Affiliation(s)
- Mengqi Wang
- Department of Pediatric Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Shuai Sun
- Department of Pediatric Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Qiong Niu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Baoguang Hu
- Department of Gastrointestinal Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Haiyan Zhao
- Department of Colorectal Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Lei Geng
- Department of Pediatric Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Tingliang Fu
- Department of Pediatric Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Hong Qin
- Department of General Surgery, Children’s Hospital Affiliated to Shandong University, Jinan, China
| | - Bufeng Zheng
- Department of Pediatric Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Hesheng Li
- Department of Gastrointestinal Surgery, Binzhou Medical University Hospital, Binzhou, China
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Niu Q, Shang X, Liu Y, Wang X, Gou C, Li X. Idiopathic non-cirrhotic portal hypertension in dyskeratosis congenita with rare variant of NHP2. QJM 2023; 116:553-555. [PMID: 36943377 DOI: 10.1093/qjmed/hcad039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/23/2023] Open
Affiliation(s)
- Q Niu
- Department of Integrative Chinese and Western Medicine, Beijing Youan Hospital, Capital Medical University, No. 8 Xitoutiao Outside You'anmen, Fengtai District, Beijing 100069, China
| | - X Shang
- Department of Integrative Chinese and Western Medicine, Beijing Youan Hospital, Capital Medical University, No. 8 Xitoutiao Outside You'anmen, Fengtai District, Beijing 100069, China
| | - Y Liu
- Department of Integrative Chinese and Western Medicine, Beijing Youan Hospital, Capital Medical University, No. 8 Xitoutiao Outside You'anmen, Fengtai District, Beijing 100069, China
| | - X Wang
- Department of Pathology, Beijing Youan Hospital, Capital Medical University, No. 8 Xitoutiao Outside You'anmen, Fengtai District, Beijing 100069, China
| | - C Gou
- Department of Integrative Chinese and Western Medicine, Beijing Youan Hospital, Capital Medical University, No. 8 Xitoutiao Outside You'anmen, Fengtai District, Beijing 100069, China
| | - X Li
- Department of Integrative Chinese and Western Medicine, Beijing Youan Hospital, Capital Medical University, No. 8 Xitoutiao Outside You'anmen, Fengtai District, Beijing 100069, China
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Zhou JW, Li Z, Ji R, Wang PZ, Zhang AJ, Wu KK, Liu CX, Niu Q, Chu YL, Su XF, Zuo XL, Li YQ. Influence of Sedated Endoscopy on Colorectal Adenoma Detection Rate: A Multicenter Study. Cancer Screen Prev 2023; 000:000-000. [DOI: 10.14218/csp.2023.00012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/03/2023]
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He CT, Lei Y, Du JR, Jia JJ, Hu Q, Niu Q. [Effect of miR-96-5p targeting IRS1 on apoptosis of PC12 cells induced by aluminum maltol]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:324-332. [PMID: 37248076 DOI: 10.3760/cma.j.cn121094-20221118-00549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Objective: To investigate the effect and mechanism of miR-96-5p on apoptosis of PC12 cells induced by maltol aluminum. Methods: In January 2021, PC12 cells at logarithmic growth phase were divided into blank control group and low, medium and high dose group. Cells in each group were treated with 0, 100, 200 and 400 μmol/L maltol aluminum for 24 hours respectively. Cells were collected and cell apoptosis rates were detected by flow cytometry, miR-96-5p and insulin receptor substrate 1 (IRS1) mRNA expressions were detected by qRT-PCR, and the protein expression levels of cysteine protease 3 (Caspase3) 、activated cysteine protease 3 (Cleaved-caspase3) 、IRS1、phosphorylated protein kinase B (p-AKT) and phosphorylated glucose synthesis kinase 3β (p-GSK3β) were detected by western blotting. The target binding relationship between miR-96-5p and IRS1 was detected by double luciferase reporter gene experiment. The miR-96-5p inhibitor cells and negative control cells were constructed after transfecting PC12 cells with miR-96-5p inhibitor for 24 hours. The cells were divided into blank control group, negative control group, aluminum exposure group, aluminum exposure+negative control group, aluminum exposure+miR-96-5p inhibition group, and miR-96-5p inhibition group. After transfecting PC12 cells with miR-96-5p inhibition and IRS1 siRNA for 24 h, the cells were divided into aluminum exposure+miR-96-5p inhibition+negative control group and aluminum exposure+miR-96-5p inhibition+IRS1 inhibition group. The control group was cultured in complete culture medium, and cells in the aluminum exposure group were treated with 200 μmol/L maltol aluminum for 24 hours. Cells in each group were collected and the apoptosis rate, miR-96-5p and IRS1 mRNA expression levels, as well as protein expression levels of Caspase3, Cleaved-caspase3, IRS1, p-AKT, and p-GSK3β were measured. Results: After 24 hours of exposure, compared with blank control group and low-dose group, the apoptosis rates, relative expressions of Caspase3 and Cleaved-caspase3 proteins, and relative expressions of miR-96-5p in the medium and high-dose groups of PC12 cells were significantly increased, while the relative expression levels of IRS1 mRNA, IRS1, p-AKT and p-GSK3β proteins were significantly decreased (P<0.05). Targetscan prediction and double luciferase report experiment both proved that IRS1 was a direct target gene of miR-96-5p. In the transfection experiment, compared with the aluminum exposure group, the apoptosis rate, the relative expressions of Caspase3 and Cleaved-caspase3 proteins, the relative expression of miR-96-5p in the aluminum exposure+miR-96-5p inhibition group were significantly decreased, while the relative expression levels of IRS1 mRNA and IRS1, p-AKT and p-GSK3β proteins were significantly increased (P<0.05). In the IRS1 low expression experiment, compared with the aluminum exposure+miR-96-5p inhibition+negative control group, the apoptosis rate, the relative expressions of Caspase3 and Cleaved-caspase3 proteins in the aluminum exposure+miR-96-5p inhibition+IRS1 inhibition group were significantly increased, while the relative expression levels of IRS1 mRNA and IRS1, p-AKT and p-GSK3β proteins were significantly decreased (P<0.05) . Conclusion: The increased expression of miR-96-5p and the targeted inhibition of IRS1 may be one of the mechanisms of apoptosis of PC12 cells induced by maltol aluminum exposure.
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Affiliation(s)
- C T He
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China Department of Human Anatomy, College of Basic Medicine, Shanxi Medical University, Taiyuan 030001, China
| | - Y Lei
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - J R Du
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - J J Jia
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Q Hu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Q Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Jin B, Jia L, Zhang F, Qu X, Zheng J, Niu Q, Gu W. High-precision nanosecond detection of a gas absorption spectrum based on optical frequency comb time-frequency mapping. Opt Lett 2023; 48:2034-2037. [PMID: 37058635 DOI: 10.1364/ol.488473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 03/04/2023] [Indexed: 06/19/2023]
Abstract
There is an increasing demand for high-precision gas absorption spectroscopy in basic research and industrial applications, such as gas tracking and leak warning. In this Letter, a novel, to the best of our knowledge, high-precision and real-time gas detection method is proposed. A femtosecond optical frequency comb is used as the light source, and a broadening pulse containing a range of oscillation frequencies is formed after passing through a dispersive element and a Mach-Zehnder interferometer. Four absorption lines of H13C14N gas cells are measured at five different concentrations within a single pulse period. A single scan detection time of only 5 ns is obtained along with a coherence averaging accuracy of 0.0055 nm. High-precision and ultrafast detection of the gas absorption spectrum is accomplished while overcoming complexities related to the acquisition system and light source that are encountered in existing methods.
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Ma X, Ma H, Gao T, Cao J, Liu C, Niu Q. Comparison of efficiency and safety between dual-clip and rubber band-assisted ESD and conventional ESD for colonic lateral spreading tumors (LSTs) with different levels of technical difficulty: a retrospective case–control study. BMC Gastroenterol 2022; 22:460. [DOI: 10.1186/s12876-022-02530-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 10/04/2022] [Indexed: 11/17/2022] Open
Abstract
Abstract
Background
Dual-clip and rubber band-assisted endoscopic submucosal dissection (DCRB-ESD) is a useful technique in the management of lateral spreading tumors (LSTs) of the colon and is suggested by researchers compared with conventional ESD (C-ESD). The aim of this retrospective study is to further analyze the efficiency and safety of DCRB-ESD in a setting with varying technical difficulties.
Methods
Patients who underwent endoscopic treatment (DCRB-ESD or C-ESD) due to LSTs between Jan 1st, 2019 and Jan 1st, 2022, were retrospectively collected. Patients were classified into the following two groups: the DCRB-ESD group (n = 46) and the C-ESD group (n = 81). Baselines were compared and propensity score matching (PSM) was employed to manage the heterogeneity. The technical difficulty and outcomes of the two groups were evaluated based on a semiquantitative model (CS-CRESD) previously described.
Results
The baseline characteristics of the two groups were balanced except sex and LST classification before PSM and were corrected after PSM. The median ESD operation time of DCRB-ESD was shorter than that of C-ESD (32 vs 41 and 30 vs 44 before and after PSM respectively, P < 0.05). The operation durations of cases with different CS-CRESD scores were different (P < 0.05). In the subgroup with a score of 0, DCRB-ESD showed no advantage than C-ESD in terms of operation duration before and after PSM. In subgroups with a score of 1–3, DCRB-ESD was faster than C-ESD. In subgroups with a score of 4–5, the between-group operation duration was not significantly different due to the limited number of cases, although the median time of DCRB-ESD was shorter. The R0 resection rates, curative resection, complications, and additional surgery in both groups were not significantly different. No adverse events, such as a clip falling off or rubber band rupturing occurred during this study.
Conclusion
DCRB-ESD was an efficient and safe procedure in the management of colonic LSTs. With DCRB-ESD, the operation duration of difficult cases can be shortened without sacrificing complication risk. However, not all cases would benefit from DCRB-ESD. For easy cases (CS-CRESD score = 0), DCRB-ESD may not be prior to C-ESD by experienced endoscopists. A pre-ESD technical difficulty evaluation was recommended to decide whether to perform DCRB-ESD or not.
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Niu Q, Zheng J, Cheng X, Liu J, Jia L, Ni L, Nian J, Zhang F, Qu X. Arbitrary distance measurement without dead zone by chirped pulse spectrally interferometry using a femtosecond optical frequency comb. Opt Express 2022; 30:35029-35040. [PMID: 36242504 DOI: 10.1364/oe.469774] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
We demonstrate an arbitrary distance measurement method by chirped pulse spectrally interferometry (CPSI) using femtosecond optical frequency comb (OFC). In this paper, the chirped fiber Bragg grating (CFBG) is used to investigate the mapping relationship between displacement and the center frequency of the chirped spectral interferogram. We overcome the direction ambiguity of dispersive interferometry (DPI) ranging and expand the range of distance measurement to 18 cm. Besides, we achieve a full range of dead-zone free ranging by introducing a variable optical delay line (VODL). And through principles simulation and experiment, it is demonstrated that the measurement accuracy is 12 µm in comparison with an incremental He-Ne laser interferometer and the minimum Allen deviation is 52 nm at an average time of 1.76 ms. Similarly, in the experiment with long-distance of ∼30m, the accuracy reaches 20 µm, and 2.51 µm repeatability is achieved under harsh environment.
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Niu Q, Song M, Zheng J, Jia L, Liu J, Ni L, Nian J, Cheng X, Zhang F, Qu X. Improvement of Distance Measurement Based on Dispersive Interferometry Using Femtosecond Optical Frequency Comb. Sensors (Basel) 2022; 22:5403. [PMID: 35891083 PMCID: PMC9318693 DOI: 10.3390/s22145403] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
Since the dispersive interferometry (DPI) based on optical frequency combs (OFCs) was proposed, it has been widely used in absolute distance measurements with long-distance and high precision. However, it has a serious problem for the traditional DPI based on the mode-locked OFC. The error of measurements caused by using the fast Fourier transform (FFT) algorithm to process signals cannot be overcome, which is due to the non-uniform sampling intervals in the frequency domain of spectrometers. Therefore, in this paper, we propose a new mathematical model with a simple form of OFC to simulate and analyze various properties of the OFC and the principle of DPI. Moreover, we carry out an experimental verification, in which we adopt the Lomb-Scargle algorithm to improve the accuracy of measurements of DPI. The results show that the Lomb-Scargle algorithm can effectively reduce the error caused by the resolution, and the error of absolute distance measurement is less than 12 μm in the distance of 70 m based on the mode-locked OFC.
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Zhang ZY, Jiang HR, Sun XR, Wang XC, Niu Q, Meng HX, Du JF, Yang GQ, Zhang H, Tan Y. Monitoring mild cognitive impairment of workers exposed to occupational aluminium based on quantitative susceptibility mapping. Clin Radiol 2022; 77:840-847. [PMID: 35817609 DOI: 10.1016/j.crad.2022.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 05/28/2022] [Accepted: 06/08/2022] [Indexed: 11/19/2022]
Abstract
AIM To investigate the diagnostic value of quantitative susceptibility mapping (QSM) in mild cognitive impairment (MCI) of aluminium (Al) workers. MATERIALS AND METHODS The basic data of 53 workers in an Al factory were collected and divided into the MCI group and normal control (NC) group by Montreal Cognitive Assessment (MoCA) scores. All participants were tested for plasma Al concentration and had magnetic resonance imaging (MRI). The QSM values of many areas of the brain were delineated and measured. Independent two-sample t-tests or non-parametric tests were used to compare the parameter values between the two groups. Spearman's correlation analysis was performed between QSM values, MoCA scores, and plasma Al concentration. The receiver operating characteristic curve and z test were performed to assess diagnostic efficacy and the best parameter. RESULTS There was no difference in age and educational level. Plasma Al concentration of the MCI group was higher than that of NC group (p=0.057). QSM values of the left hippocampus, left dentate nucleus, right substantia nigra, and left putamen in MCI group were higher than that of NC group (p<0.05), and the left hippocampus had the best diagnostic efficacy. QSM values correlated negatively with MoCA scores. No correlation was found between QSM values and plasma Al concentration (p>0.05). CONCLUSION QSM might be a neuroimaging marker for the diagnosis of MCI. The left hippocampus showed the best diagnostic efficacy. Plasma Al concentration of the MCI group was higher than that of the NC group. A correlation between QSM and plasma Al concentration was not found.
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Affiliation(s)
- Z Y Zhang
- College of Medical Imaging, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - H R Jiang
- College of Medical Imaging, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - X R Sun
- College of Medical Imaging, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - X C Wang
- Department of Radiology, First Clinical Medical Hospital, Shanxi Medical University, 85 Jiefang South Road, Taiyuan 030001, Shanxi Province, China
| | - Q Niu
- School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - H X Meng
- School of Public Health, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - J F Du
- Department of Radiology, First Clinical Medical Hospital, Shanxi Medical University, 85 Jiefang South Road, Taiyuan 030001, Shanxi Province, China
| | - G Q Yang
- Department of Radiology, First Clinical Medical Hospital, Shanxi Medical University, 85 Jiefang South Road, Taiyuan 030001, Shanxi Province, China
| | - H Zhang
- Department of Radiology, First Clinical Medical Hospital, Shanxi Medical University, 85 Jiefang South Road, Taiyuan 030001, Shanxi Province, China.
| | - Y Tan
- Department of Radiology, First Clinical Medical Hospital, Shanxi Medical University, 85 Jiefang South Road, Taiyuan 030001, Shanxi Province, China.
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Liu X, Sun Q, Sun W, Niu Q, Wang Z, Liu C, Fu T, Geng L, Li X. Severe Blunt Liver Injury Complicated by Delayed Massive Hemobilia in a Toddler: A Case Report and Literature Review. Front Surg 2022; 9:930581. [PMID: 35874128 PMCID: PMC9304685 DOI: 10.3389/fsurg.2022.930581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/21/2022] [Indexed: 11/13/2022] Open
Abstract
IntroductionUnintentional injuries remain a leading cause of disability among children. Although most of the pediatric patients suffering blunt liver injury can be successfully treated with non-operative therapy, the diagnosis and management of delayed life-threatening hemobilia following severe blunt liver injury, especially in the pediatric population, remain a challenge for clinicians.Case PresentationA previously healthy 2-year-old girl suffered a severe blunt liver injury related to an electric bike, which was inadvertently activated by herself. She initially received non-operative therapy and was in a stable condition in the first 2 weeks. On the 16th and 22nd postinjury days, the patient presented with life-threatening massive hemobilia, which was confirmed via repeat emergent gastroscopy and hepatic arterial angiography. An emergency selective transarterial embolization of the involved branch of the left hepatic artery was successfully performed. The patient recovered uneventfully, and long-term follow-up was needed owing to a mild dilatation of the left intrahepatic bile duct.DiscussionIncidental injury in children should be considered as a major public health issue and preventive measures should be taken to reduce its occurrence. Delayed massive hemobilia after severe blunt liver trauma is rare, and its accurate and timely diagnosis via emergency hepatic arterial angiography and selective angioembolization may allow prompt and optimal management to achieve good outcomes in the pediatric population.
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Affiliation(s)
- Xiaoming Liu
- Pediatric Intensive Care Unit, Binzhou Medical University Hospital, Binzhou, China
| | - Qianqian Sun
- Pediatric Intensive Care Unit, Binzhou Medical University Hospital, Binzhou, China
| | - Wenjing Sun
- Pediatric Intensive Care Unit, Binzhou Medical University Hospital, Binzhou, China
| | - Qiong Niu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Zhu Wang
- Department of Vascular and Interventional Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Chen Liu
- Department of Pediatric Surgery, Shanghai Children’s Hospital, Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Tingliang Fu
- Department of Pediatric Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Lei Geng
- Department of Pediatric Surgery, Binzhou Medical University Hospital, Binzhou, China
- Correspondence: Lei Geng Xiaomei Li
| | - Xiaomei Li
- Pediatric Intensive Care Unit, Binzhou Medical University Hospital, Binzhou, China
- Correspondence: Lei Geng Xiaomei Li
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Ding G, Liu H, Zhou P, Niu Q, Wang W, Feng Z, Zhang S, Zhang Z, Geng L, Bu Z, Fu T. Pediatric Multiple High-Powered Magnetic Buckyballs Ingestion—Experience From Six Tertiary Medical Centers. Front Public Health 2022; 10:892756. [PMID: 35784204 PMCID: PMC9240617 DOI: 10.3389/fpubh.2022.892756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/16/2022] [Indexed: 11/18/2022] Open
Abstract
Multiple high-powered magnetic Buckyball ingestions may lead to a high risk of severe complications. Great concerns have been raised by public health workers, and it remains challenging for clinicians to solve this troublesome problem. We report a large case series of children with Buckyball ingestion from six tertiary medical centers. The clinical data, including demographics, medical history, diagnosis tools, management options, intraoperative or endoscopic findings, and outcomes, were retrospectively analyzed. Seventy-one children aged 1–13 years ingested 2–41 Buckyballs. Among them, Buckyballs passed spontaneously on 2–10 days post-ingestion in seven cases; gastroscopic removal was performed in 14 cases; laparoscopic removal in 13 cases; laparoscopic-assisted surgical removal in 6 cases; and open surgical removal in 31 cases. Surgical indications included small bowel obstruction, perforation, peritonitis, acute abdominal pain, or along with ingestion of other metallic foreign bodies. Among those who underwent a surgical procedure, primary intestinal repair was performed in 44 cases, enterectomy with primary anastomosis in 6 cases. The postoperative hospital stay ranged from 5 to 28 days. No major complications occurred. In unwitnessed cases, a vague medical history and nonspecific symptoms usually make the diagnosis difficult. The treatment options should include the watch-and-wait approach, endoscopic, laparoscopic-assisted, or open surgical removal of Buckyballs, with primary intestinal repair or anastomosis. Preventive measures, including children's not having access to Buckyballs, are essential to protect children from this kind of unintentional injury.
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Affiliation(s)
- Guojian Ding
- Department of Pediatric Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Hongzhen Liu
- Department of Pediatric Surgery, Children's Hospital Affiliated to Shandong University, Jinan, China
| | - Peng Zhou
- Department of Pediatric Surgery, Zibo Maternal and Child Health Care Hospital, Zibo, China
| | - Qiong Niu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Wei Wang
- Department of Pediatric Surgery, Maternity and Child Health Care of Zaozhuang, Zaozhuang, China
| | - Zhiqiang Feng
- Department of Pediatric Surgery, Taian Maternity and Child Health Hospital, Taian, China
| | - Shisong Zhang
- Department of Pediatric Surgery, Children's Hospital Affiliated to Shandong University, Jinan, China
| | - Zhengmao Zhang
- Department of Pediatric Surgery, Zibo Maternal and Child Health Care Hospital, Zibo, China
| | - Lei Geng
- Department of Pediatric Surgery, Binzhou Medical University Hospital, Binzhou, China
- *Correspondence: Lei Geng
| | - Zhaoyun Bu
- Department of Pediatric Surgery, People's Hospital of Rizhao, Rizhao, China
- Zhaoyun Bu
| | - Tingliang Fu
- Department of Pediatric Surgery, Binzhou Medical University Hospital, Binzhou, China
- Tingliang Fu
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15
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Lian H, Zhong XS, Xiao Y, Sun Z, Shen Y, Zhao K, Ma X, Li Y, Niu Q, Liu M, Powell DW, Liu C, Li Q. Exosomal miR-29b of Gut Origin in Patients With Ulcerative Colitis Suppresses Heart Brain-Derived Neurotrophic Factor. Front Mol Biosci 2022; 9:759689. [PMID: 35274002 PMCID: PMC8902158 DOI: 10.3389/fmolb.2022.759689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 01/21/2022] [Indexed: 01/13/2023] Open
Abstract
Background and Aims: While the interplay between heart and gut in inflammatory bowel disease (IBD) has previously been noted, how the inflamed gut impairs heart function remain elusive. We hypothesized that exosomal miRNAs of gut origin induce cardiac remodeling in IBD. Our aim was to identify plasma exosomal miRNAs that not only are of diagnostic value but also contribute to cardiac remodeling in patients with ulcerative colitis (UC).Methods: Plasma exosomes were isolated from UC patients and healthy control subjects and exosomal miRNAs were profiled by next-generation sequencing. Exosomal miR-29b levels in CCD841 CoN colon epithelial cells were detected by RT-qPCR. Exosomes packaged with miR-29b were incubated with H9c2 cells or administered to live mice.Results: The plasma exosomal miRNA profiles of the UC patients were significantly different from that of the controls and 20 miRNAs including miR-29b were differentially expressed. In CCD841 CoN cells, TNFα, IL-1β, and H2O2 significantly elevated miR-29b in both the cells and their secreted exosomes (p < 0.01), suggesting that intestinal epithelium secrets exosomes rich in miR-29b in IBD. In H9c2 myoblast cells, miR-29b modulated multiple genes including brain-derived neurotrophic factor (BDNF). Epithelial cell-derived exosomes packaged with miR-29b also attenuated BDNF and increased cleaved caspase 3, suggestive of apoptosis. Furthermore, tail vein injection of engineered exosomes with high levels of miR-29b suppressed BDNF and augmented cleaved caspase 3 in the heart of adult mouse (p < 0.01).Conclusion: Plasma exosomal miRNA profile could be a novel diagnostic approach for IBD. Excessive plasma exosomal miR-29b suppresses critical proteins like BDNF in IBD, leading to cardiac impairment.
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Affiliation(s)
- Haifeng Lian
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
- *Correspondence: Haifeng Lian, ; Qingjie Li,
| | - Xiaoying S. Zhong
- Division of Gastroenterology, Department of Internal Medicine, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Ying Xiao
- Division of Gastroenterology, Department of Internal Medicine, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, China
| | - Zhe Sun
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Yuanyuan Shen
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Kaile Zhao
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Xingbin Ma
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Yanmin Li
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Qiong Niu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Max Liu
- Division of Gastroenterology, Department of Internal Medicine, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Don W. Powell
- Division of Gastroenterology, Department of Internal Medicine, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
| | - Chengxia Liu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Qingjie Li
- Division of Gastroenterology, Department of Internal Medicine, The University of Texas Medical Branch at Galveston, Galveston, TX, United States
- *Correspondence: Haifeng Lian, ; Qingjie Li,
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Wang W, Liu CX, Niu Q, Wang AL, Shi N, Ma FZ, Hu YB. OTSC assisted EFTR for the treatment of GIST: 40 cases analysis. MINIM INVASIV THER 2022; 31:238-245. [PMID: 32589071 DOI: 10.1080/13645706.2020.1781190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND AND AIMS To verify the safety and efficacy of over-the-scope clip (OTSC)-assisted endoscopic full-thickness resection (EFTR) for the excision of stromal tumors. MATERIAL AND METHODS Forty patients with gastric stromal tumors treated in the Department of Gastroenterology, Binzhou Medical University Hospital from December 2015 to March 2017 were included in this study. The surgical procedures included marking the lesion boundaries, cutting open the top surface of the lesion, installing an OTS, sucking the lesion into the transparent cap of the anatomical clip which was then released, application of an endoloop for EFTR, and confirming the complete resection and pathological examination of the lesion. Statistical analysis of the tumor site and size, operation time, success rates, complications, pathological examination results, and follow-up status was performed. RESULTS The average operation duration was 38.40 ± 24.9 min. Three cases had an incomplete resection, but the lesion was later found to have fallen off together with the OTSC. Therefore, the treatment success rate was 100%. Postoperative pathological examination revealed leiomyomas in four cases and stromal tumors in the remaining 36 cases. CONCLUSIONS OTSC-assisted EFTR is safe and effective for resection of gastrointestinal stromal tumors, especially for those <20 mm in size.
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Affiliation(s)
- Wei Wang
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, PR China
| | - Cheng-Xia Liu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, PR China
| | - Qiong Niu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, PR China
| | - Ai-Li Wang
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, PR China
| | - Ning Shi
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, PR China
| | - Feng-Zhen Ma
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, PR China
| | - Ying-Bin Hu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, PR China
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17
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Gao D, Yang H, Song J, Wang LP, Niu Q, Lu XT. [The impact of occupational aluminum exposure on workers' overall cognitive function and various cognitive fields]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:915-918. [PMID: 35164420 DOI: 10.3760/cma.j.cn121094-20200917-00534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To evaluate the effects of occupational aluminum exposure on workers' overall cognitive function and cognitive fields. Methods: From July to August 2019, using the method of cluster sampling, 101 and 117 workers were selected from the electrolytic aluminum workshop of an aluminum plant in a region and the maintenance workshop of a plant in the same region. The venous blood of the subjects was collected, the plasma was extracted, and the blood aluminum concentration was measured by ICP-MS. According to the blood aluminum concentration and type of work, 93 workers who were lower than the median blood aluminum concentration and in the maintenance workshop of a factory were divided into low aluminum exposure group, and 85 workers who were higher than the median blood aluminum concentration and in the electrolytic aluminum workshop of an aluminum factory were divided into high aluminum exposure group. The basic information of the respondents, was collected through the employee physical examination form. The overall cognitive function of workers was evaluated by Beijing Montreal Cognitive Assessment Scale (MoCA) . Multiple linear regression analysis and logistic regression analysis were used for multiple statistical analysis. Results: Compared with the low aluminum exposure group (25.42±1.808) , the total score of MoCA in the high aluminum exposure group (23.84±2.919) was significantly lower, and the scores of visual space, executive function, abstract and delayed recall were significantly lower (P<0.05) . Linear regression analysis showed that the total score of MoCA, visual space and executive function, naming and delayed recall were negatively correlated with blood aluminum concentration (β=-0.018、-0.008、-0.003、-0.008, P<0.05) .MOCA total score, visual space and executive function, attention, language, abstraction, orientation were positively correlated with educational level (β=0.853、0.310、0.216、0.171、0.412、0.122, P<0.05) . Logistic regression analysis showed that adjusting for age, smoking, drinking and education, blood aluminum was a risk factor for mild cognitive impairment (OR=1.017, P<0.05) ; Education level was the protective factor of mild cognitive impairment (OR=0.419, P<0.05) . Conclusion: Occupational aluminum exposure can affect the overall cognitive function of workers, and occupational aluminum exposure increases the risk of MCI.
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Affiliation(s)
- D Gao
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - H Yang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - J Song
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - L P Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Q Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - X T Lu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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18
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Li J, Zhang JQ, Yao YX, Lu XT, Song J, Niu Q, Wang LP. [Effects of occupational exposure to aluminum on verbal function of workers]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:748-751. [PMID: 34727655 DOI: 10.3760/cma.j.cn121094-20200603-00315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect of occupational aluminum (Al) exposure on workers' overall cognitive level and speech function. Methods: In July 2019, by using cluster sampling method, the group of 232 exposed to Al from an Al plant in Shanxi Province were selected as the exposed group, and the group of 228 not exposed to Al were selected as the control group. The blood Al concentration was determined by inductively coupled plasma mass spectrometry (ICP-MAS) . The exposed group was divided into high exposure group and low exposure group according to the median (M) concentration of Al in serum. The general cognitive function and speech function were evaluated with the Montreal Cognitive Assessment Scale (MoCA) , and the differences in the general cognitive function and speech function between the groups were compared, and non-conditional logistic regression was used to analyze the possible influencing factors of mild cognitive impairment (MCI) . Results: There were significant differences in age, working age, education and drinking status between Al exposed group and control group (P<0.05) . The total MoCA score, animal naming tese (ANT) score and category fluency repetition (CFT) score in Al exposure group were lower than control group and the differences were statistically significant (P<0.05) . The full rate of ANT was lower than that of CFT in Al exposure group (P<0.05) . The total MoCA score, ANT score and CFT score in the high exposure group were significantly lower than those in the control group (P<0.05) . The score of MoCA, ANT and CFT in high exposure group were lower than those in low exposure group between the level of serum aluminum>60 μg/L group and ≤60 μg/L group (P<0.05) . Logistic regression analysis showed that working age, serun Al concentration, ANT score, CFT score and SR score were the possible influencing factors of MCI in occupational Al exposure workers (P<0.05) . Conclusion: Occupational Al exposure can lead to impaired speech function of workers, the higher the ANT score, CFT score and SR score, the lower working age and serum Al concentration, the lower risk of MCI.
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Affiliation(s)
- J Li
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - J Q Zhang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Y X Yao
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - X T Lu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - J Song
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Q Niu
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - L P Wang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Zhu Y, Hu Y, Cheng X, Li Q, Niu Q. Elevated miR-129-5p attenuates hepatic fibrosis through the NF-κB signaling pathway via PEG3 in a carbon CCl 4 rat model. J Mol Histol 2021; 52:491-501. [PMID: 33743102 DOI: 10.1007/s10735-020-09949-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 12/22/2020] [Indexed: 12/28/2022]
Abstract
Hepatic fibrosis is a reversible scaring response to chronic liver injury. MicroRNA (miR)-129-5p might regulate fibrosis-related gene expression. This study is performed to decipher, potential of miR-129-5p to influence the progression of hepatic fibrosis in a carbon tetrachloride (CCl4) rat model. Rat hepatic fibrosis was successfully established by subcutaneous injection of 50% CCl4. RT-qPCR revealed that miR-129-5p was poorly expressed and PEG3 was highly expressed in hepatic fibrosis tissues. As reflected by dual-luciferase reporter gene assay, miR-129-5p targeted and reduced the expression of PEG3. Thereafter, miR-129-5p antagomir or short hairpin RNA against paternally expressed gene 3 (PEG3) was adopted for gain- and loss-of-function assay to determine the molecular regulatory mechanism of miR-129-5p. Moreover, we detected the expression of nuclear factor kappa B (NF-κB) signaling pathway-related proteins and apoptosis-related factors, and made a serological analysis of the rat serum samples. Results showed that upregulated miR-129-5p or downregulated PEG3 led to reduction of the histological changes of liver cirrhosis and lowered the apoptosis rate, via downstream effects on the NF-κB signaling pathway. Thus, the hepatic fibrosis induced by CCl4 can be rescued by upregulated miR-129-5p or downregulated PEG3 expression.
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Affiliation(s)
- Yuezhi Zhu
- Department of Emergency, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, People's Republic of China
| | - Yingbin Hu
- Department of Gastroenterology, Binzhou Medical University Hospital, No. 661, Huanghe 2nd Road, Bincheng District, Binzhou, 256603, Shandong, People's Republic of China
| | - Xianyong Cheng
- Department of Gastroenterology, Binzhou Medical University Hospital, No. 661, Huanghe 2nd Road, Bincheng District, Binzhou, 256603, Shandong, People's Republic of China
| | - Qiong Li
- Department of Gastroenterology, Binzhou Medical University Hospital, No. 661, Huanghe 2nd Road, Bincheng District, Binzhou, 256603, Shandong, People's Republic of China
| | - Qiong Niu
- Department of Gastroenterology, Binzhou Medical University Hospital, No. 661, Huanghe 2nd Road, Bincheng District, Binzhou, 256603, Shandong, People's Republic of China.
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20
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Wang H, Zhao K, Shi N, Niu Q, Liu C, Chen Y. Electroacupuncture Regularizes Gastric Contraction and Reduces Apoptosis of Interstitial Cells of Cajal in Diabetic Rats. Front Physiol 2021; 12:560738. [PMID: 33867995 PMCID: PMC8047410 DOI: 10.3389/fphys.2021.560738] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 03/02/2021] [Indexed: 12/12/2022] Open
Abstract
Background/Aims Gastric dysmotility is a frequent complication among patients with diabetes mellitus. Electroacupuncture (EA) has been empirically used to relieve gastrointestinal symptoms. The aims of this study were to investigate the effects of EA on gastric contraction and the mechanisms of interstitial cells of Cajal (ICC) involved. Materials and Methods Male Sprague–Dawley rats were randomized into the normal control, diabetes (DM), diabetic and sham EA (DM + SEA), diabetic and low-frequency EA (DM + LEA), and diabetic and high-frequency EA (DM + HEA) groups. Diabetic models were established and then treated with EA for 8 weeks. Body weight and blood glucose were recorded every 2 weeks. The spontaneous contractions of distal gastric strips were analyzed. Immunostaining and RT-PCR were used to test the apoptotic ICC, IGF-1/IGF-1R, and Nrf2/HO-1 pathways. Results The body weight in the DM + LEA and DM + HEA groups were increased compared with that of the DM group, though there was no effect on the blood glucose. The gastric contractions were obviously disordered in the DM group, but EA could regularize the contractions. The number of apoptotic ICC was dramatically increased in the DM group, but reduced with EA treatment. Meanwhile, the IGF-1/IGF-1R pathway was verified to be significantly altered in diabetic rats. The Nrf2/HO-1 pathway was not significantly increased in the DM group. EA with different frequencies efficiently improved the expression of IGF-1/IGF-1R signaling and activated the Nrf2/HO-1 pathway. Conclusion EA could improve gastric motility dysfunction and attenuate ICC apoptosis possibly through the regulation of IGF-1/IGF-1R and Nrf2/HO-1 pathways. EA may be a potential therapeutic method for diabetic gastric motility dysfunction.
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Affiliation(s)
- Hongcai Wang
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, China
| | - Kaile Zhao
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Ning Shi
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Qiong Niu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Chengxia Liu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
| | - Yan Chen
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, China
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21
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Wang H, Zhao K, Ba Y, Gao T, Shi N, Niu Q, Liu C, Chen Y. Gastric Electrical Pacing Reduces Apoptosis of Interstitial Cells of Cajal via Antioxidative Stress Effect Attributing to Phenotypic Polarization of M2 Macrophages in Diabetic Rats. Oxid Med Cell Longev 2021; 2021:1298657. [PMID: 33728017 PMCID: PMC7937455 DOI: 10.1155/2021/1298657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 02/08/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Gastric electrical pacing (GEP) could restore interstitial cells of Cajal in diabetic rats. M2 macrophages contribute to the repair of interstitial cells of Cajal injury though secreting heme oxygenase-1 (HO-1). The aim of the study is to investigate the effects and mechanisms of gastric electrical pacing on M2 macrophages in diabetic models. METHODS Sixty male Sprague-Dawley rats were randomized into control, diabetic (DM), diabetic with the sham GEP (DM+SGEP), diabetic with GEP1 (5.5 cpm, 100 ms, 4 mA) (DM+GEP1), diabetic with GEP2 (5.5 cpm, 300 ms, 4 mA) (DM+GEP2), and diabetic with GEP3 (5.5 cpm, 550 ms, 4 mA) (DM+GEP3) groups. The apoptosis of interstitial cells of Cajal and the expression of macrophages were detected by immunofluorescence technique. The expression levels of the Nrf2/HO-1 and NF-κB pathway were evaluated using western blot analysis or immunohistochemical method. Malonaldehyde, superoxide dismutase, and reactive oxygen species were tested to reflect the level of oxidative stress. RESULTS Apoptosis of interstitial cells of Cajal was increased in the DM group but significantly decreased in the DM+GEP groups. The total number of macrophages was almost the same in each group. In the DM group, M1 macrophages were increased and M2 macrophages were decreased. However, M2 macrophages were dramatically increased and M1 macrophages were reduced in the DM+GEP groups. Gastric electrical pacing improved the Nrf2/HO-1 pathway and downregulated the phosphorylation of NF-κB. In the DM group, the levels of malonaldehyde and reactive oxygen species were elevated and superoxide dismutase was lowered, while gastric electrical pacing reduced the levels of malonaldehyde and reactive oxygen species and improved superoxide dismutase. CONCLUSION Gastric electrical pacing reduces apoptosis of interstitial cells of Cajal though promoting M2 macrophages polarization to play an antioxidative stress effect in diabetic rats, which associates with the activated Nrf2/HO-1 pathway and the phosphorylation of NF-κB pathway.
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Affiliation(s)
- Hongcai Wang
- Department of Neurology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Kaile Zhao
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Ying Ba
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Tao Gao
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Ning Shi
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Qiong Niu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Chengxia Liu
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Yan Chen
- Department of Gastroenterology, Binzhou Medical University Hospital, Binzhou, Shandong, China
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Yang KX, Zhou H, Ding JM, He C, Niu Q, Gu CJ, Zhou ZX, Meng H, Huang QZ. Copy number variation in HOXB7 and HOXB8 involves in the formation of beard trait in chickens. Anim Genet 2020; 51:958-963. [PMID: 33058257 DOI: 10.1111/age.13011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/24/2020] [Accepted: 09/19/2020] [Indexed: 12/24/2022]
Abstract
The derived feathering phenotype beard in domestic birds is an ideal resource to investigate the genetic mechanisms controlling feather development and differentiation. In the present study, we performed a GWAS and QTL linkage analysis on the trait of beard in Beijing fatty chicken. One major QTL (1.2-1.9 Mb) was identified that could explain 34% of the phenotypic variation. The copy number variation that was copied from the region (GGA27:3 578 409-3 592 890 bp) containing homebox B7 (HOXB7) and homebox B8 (HOXB8) was validated to be only exhibited in the genome of bearded chickens. Protein-protein interaction analysis indicated that HOXB7 and HOXB8 proteins could highly interact with the HOXB family members, including HOXB4, HOXB5 and HOXB6, whose genomic locations near HOXB7 and HOXB8 suggested that they may regulate their family members to involve in the formation of the beard trait in chickens. Overall, our work provides basic data for understanding the mechanisms regulating beard development and differentiation.
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Affiliation(s)
- K X Yang
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, Shanghai, 201106, China
| | - H Zhou
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - J M Ding
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - C He
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Q Niu
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, Shanghai, 201106, China
| | - C J Gu
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, Shanghai, 201106, China
| | - Z X Zhou
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, Shanghai, 201106, China
| | - H Meng
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Q Z Huang
- Animal Husbandry and Veterinary Research Institute, Shanghai Academy of Agricultural Science, 2901 Beidi Road, Shanghai, 201106, China
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23
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Yang B, Niu Q, Yang Y, Dai P, Yuan T, Xu S, Pan X, Yang Y, Zhu G. Self-made Salmonella Pullorum agglutination antigen development and its potential practical application. Poult Sci 2020; 98:6326-6332. [PMID: 31399741 PMCID: PMC8913757 DOI: 10.3382/ps/pez453] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 07/25/2019] [Indexed: 12/12/2022] Open
Abstract
Pullorum disease caused by Salmonella Pullorum is one of the most important infectious diseases in the poultry industry worldwide, which leads to serious economic losses in many developing countries because of its high mortality rate in young chicks. The traditional slide agglutination test with low cost, fast reaction, and on-site detection has been widely used in the diagnosis of Pullorum disease. However, in practice, the test performance is with the disadvantages of false positive results and unstable detection results. In this paper, we developed self-made agglutination antigens prepared by local isolates in the poultry farm and compare the detection performance with commercial agglutination antigens (China Institute of Veterinary Drug Control) and Group D Salmonella ELISA kit (BioChek UK Ltd). The results of detecting 200 serum samples indicated that the consistency of commercial agglutination antigen detecting in 2 times was only 79.5%. Using the ELISA kit as the reference method, the commercial agglutination antigen detecting results of the Kappa test were only moderately consistent (0.58 ∼ 0.59). Meanwhile, positive and total coincidence rates of the self-made agglutination antigen test with more reliable repeat could reach 97.4 and 88%, respectively, and the result of Kappa test was highly consistent (0.75). The Receiver Operating Characteristic curve analysis clarified that the area under the receiver-operating-characteristic curve values of self-made and commercial agglutination antigen tests could reach 0.861 and 0.804, respectively. These results were coincident when detecting known positive serum from the infected chickens. It's worth mentioning that the visible positive reaction of self-made agglutination antigen test appeared faster and stronger than commercial antigen test. In conclusion, self-made Salmonella Pullorum agglutination antigen developed in this study was much better than commercial agglutination antigen and is expected to be a valuable tool in the diagnosis of the epidemiology of Salmonella Pullorum.
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Affiliation(s)
- B Yang
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Q Niu
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Y Yang
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - P Dai
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - T Yuan
- Yuan Feng animal husbandry, Qinzhou, Guangxi Autonomous Region 535400, China
| | - S Xu
- Yuan Feng animal husbandry, Qinzhou, Guangxi Autonomous Region 535400, China
| | - X Pan
- Yuan Feng animal husbandry, Qinzhou, Guangxi Autonomous Region 535400, China
| | - Y Yang
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - G Zhu
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
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24
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Niu Q, Knebel G, Braithwaite D, Aoki D, Lapertot G, Seyfarth G, Brison JP, Flouquet J, Pourret A. Fermi-Surface Instability in the Heavy-Fermion Superconductor UTe_{2}. Phys Rev Lett 2020; 124:086601. [PMID: 32167364 DOI: 10.1103/physrevlett.124.086601] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/30/2019] [Accepted: 01/15/2020] [Indexed: 06/10/2023]
Abstract
Transport measurements are presented up to fields of 29 T in the recently discovered heavy-fermion superconductor UTe_{2} with magnetic field H applied along the easy magnetization a axis of the body-centered orthorhombic structure. The thermoelectric power varies linearly with temperature above the superconducting transition, T_{SC}=1.5 K, indicating that superconductivity develops in a Fermi liquid regime. As a function of field the thermoelectric power shows successive anomalies which appear at critical values of the magnetic polarization. Remarkably, the lowest magnetic field instability for H∥a occurs for the same critical value of the magnetization (0.4 μ_{B}) than the first order metamagnetic transition at 35 T for field applied along the b axis. It can be clearly identified as a Lifshitz transition. The estimated number of charge carriers at low temperature reveals a metallic ground state distinct from LDA calculations indicating that strong electronic correlations are a major issue.
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Affiliation(s)
- Q Niu
- Université Grenoble Alpes, CEA, IRIG, PHELIQS, F-38000 Grenoble, France
| | - G Knebel
- Université Grenoble Alpes, CEA, IRIG, PHELIQS, F-38000 Grenoble, France
| | - D Braithwaite
- Université Grenoble Alpes, CEA, IRIG, PHELIQS, F-38000 Grenoble, France
| | - D Aoki
- Université Grenoble Alpes, CEA, IRIG, PHELIQS, F-38000 Grenoble, France
- Institute for Materials Research, Tohoku University, Oarai, Ibaraki 311-1313, Japan
| | - G Lapertot
- Université Grenoble Alpes, CEA, IRIG, PHELIQS, F-38000 Grenoble, France
| | - G Seyfarth
- Université Grenoble Alpes, EMFL, CNRS, Laboratoire National des Champs Magnétiques Intenses (LNCMI), 38042 Grenoble, France
| | - J-P Brison
- Université Grenoble Alpes, CEA, IRIG, PHELIQS, F-38000 Grenoble, France
| | - J Flouquet
- Université Grenoble Alpes, CEA, IRIG, PHELIQS, F-38000 Grenoble, France
| | - A Pourret
- Université Grenoble Alpes, CEA, IRIG, PHELIQS, F-38000 Grenoble, France
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25
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Ma XB, Liu LJ, Niu Q, Shang BY, Li YY, Liu CX. Multiple intestinal stromal tumors in a young patient with acute gastrointestinal hemorrhage: A case report and literature review. Shijie Huaren Xiaohua Zazhi 2019; 27:972-976. [DOI: 10.11569/wcjd.v27.i15.972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Acute small intestinal bleeding in clinical diagnosis and treatment is not specific, and the diagnosis of small intestinal bleeding is still a major clinical challenge because of its high mobility, tortuosity, and difficulty in endoscopic examination.
CASE SUMMARY This case is a young patient with multiple stromal tumors of the small intestine complicated with acute massive hemorrhage of the digestive tract. After correction of shock, abdominal computed tomography (CT) and emergency enteroscopy were performed, followed by multi-disciplinary team discussion to develop a reasonable and standardized treatment plan and subsequent therapy to save the patient¡¯s life and maximize the benefits of the patient.
CONCLUSION Small intestinal stromal tumor has an insidious onset and lacks specific clinical manifestations. According to the characteristics of this disease, B-mode ultrasound, CT, magnetic resonance imaging, digital subtraction angiography, gastrointestinal endoscopy, capsule endoscopy, and other examinations should be used to make a preoperative diagnosis and conduct accurate clinical staging. Multidisciplinary discussion is helpful to develop standardized treatment options to improve the prognosis of patients.
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Affiliation(s)
- Xing-Bin Ma
- Department of Gastroenterology, Binzhou Medical College Affiliated Hospital, Binzhou 256603, Shandong Province, China
| | - Li-Juan Liu
- Department of Gastroenterology, Binzhou Medical College Affiliated Hospital, Binzhou 256603, Shandong Province, China
| | - Qiong Niu
- Department of Gastroenterology, Binzhou Medical College Affiliated Hospital, Binzhou 256603, Shandong Province, China
| | - Bing-Ying Shang
- Department of Gastroenterology, Binzhou Medical College Affiliated Hospital, Binzhou 256603, Shandong Province, China
| | - Yang-Yang Li
- Department of Pathology, Binzhou Medical College Affiliated Hospital, Binzhou 256603, Shandong Province, China
| | - Cheng-Xia Liu
- Department of Gastroenterology, Binzhou Medical College Affiliated Hospital, Binzhou 256603, Shandong Province, China
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26
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Di Giampaolo L, Di Gioacchino M, Mangifesta R, Gatta A, Tinari N, Grassadonia A, Niu Q, Paganelli R, Sabbioni E, Otsuki T, Petrarca C. Occupational allergy: is there a role for nanoparticles? J BIOL REG HOMEOS AG 2019; 33:661-668. [PMID: 31179676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
All fields of industry are applying nanotechnologies for the development of advanced materials, there¬fore at present the number of workers exposed to nanosized materials are significantly increasing. Unfortunately, protective equipment for nanoparticles (NPs) is of uncertain efficacy so the risk of noxious effects, in particular allergic sensitization, on workers gives many concerns. At the same time, studies of allergic physiopathology demonstrated that the lack of prevention and treatment could result in invalidating dis¬eases that, in case of professional etiology, might imply removal from the job and compensation. Therefore, a deeper knowledge of the role of NPs in inducing allergic diseases is mandatory to implement the risk assessment and preventive measures for nanosafety in the workplace. The possibility that NPs favor, ex¬acerbate or directly induce allergy is being suggested by recent experimental investigations in cellular and animal models. Unfortunately, studies are heterogeneous and few data have received experimental confir¬mation, lacking reproducibility. What comes to attention is the uncertainty about the real plausibility of the observed experimental effects, as there are only a few reported cases of allergy onset or exacerbation for workers exposed to NPs. However, the potential for NPs to induce, favor or exacerbate allergies seems possible even though not completely demonstrated. This should be a greater incentive to carry out appro¬priate epidemiological studies that are lacking and really needed.
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Affiliation(s)
- L Di Giampaolo
- Allergy and Immunotoxicology and Occupational Biorepository - Ce.S.I. - Center of Excellence on Aging, Chieti, Italy
- Department of Medical, Oral and Biotechnological Sciences, G. d'Annunzio University, Chieti, Italy
| | - M Di Gioacchino
- Allergy and Immunotoxicology and Occupational Biorepository - Ce.S.I. - Center of Excellence on Aging, Chieti, Italy
- Department of Medicine and Science of Ageing, G. d'Annunzio University, Chieti, Italy
| | - R Mangifesta
- Allergy and Immunotoxicology and Occupational Biorepository - Ce.S.I. - Center of Excellence on Aging, Chieti, Italy
| | - A Gatta
- Department of Medicine and Science of Ageing, G. d'Annunzio University, Chieti, Italy
| | - N Tinari
- Department of Medicine and Science of Ageing, G. d'Annunzio University, Chieti, Italy
| | - A Grassadonia
- Department of Medicine and Science of Ageing, G. d'Annunzio University, Chieti, Italy
| | - Q Niu
- Public Health School of Shanxi Medical University, Taiyuan, PR China
| | - R Paganelli
- Department of Medicine and Science of Ageing, G. d'Annunzio University, Chieti, Italy
| | - E Sabbioni
- Allergy and Immunotoxicology and Occupational Biorepository - Ce.S.I. - Center of Excellence on Aging, Chieti, Italy
| | - T Otsuki
- Department of Hygiene, Kawasaki Medical School, Kurashiki, Japan
| | - C Petrarca
- Allergy and Immunotoxicology and Occupational Biorepository - Ce.S.I. - Center of Excellence on Aging, Chieti, Italy
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27
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Li LR, Zhang T, Wang SS, Niu Q. [The study of the effects of occupational aluminum exposure on TNFR1 expression and cognitive function]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:184-188. [PMID: 29996218 DOI: 10.3760/cma.j.issn.1001-9391.2018.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the relationship between cognitive function and tumor necrosis factor receptor 1 (TNFR1) expression of occupational exposed workers to aluminum and provide the basis for the diagnosis of cognitive impairment. Methods: 140 cases Shanxi aluminum plant workers were collected in 2016 as the research object, including 70 potroom workers for exposure group, 70 non-electrolytic aluminum plant workers in the control group, respectively. Using mini mental status examination (MMSE), digit span test (DST), fuld object memory examination(FOME) and simple reaction time test(SRTT) evaluate the cognitive function of objects. Using graphite furnace atomic absorption method for the determination of plasma aluminum levels as an indicator of aluminum contact exposure of workers. Using RT-PCR method for detection of tumor necrosis factor receptor 1 (TNFR1) mRNA expression levels. And comparison group differences in cognitive and TNFR1 mRNA expression levels. Results: The plasma aluminum content of exposed group (77.12±27.18) μg/L higher than the control group (55.6±28.69)μg/L (P=0.000); Compared to control group, FOME and MMSE score was significantly increased in the exposed group (P=0.000, P=0.000), SRTT scores significantly higher in the exposed group (P=0.001), DST no significant difference in the control group (P=0.893). Compared to control group, The mRNA expression of TNFR1 was significantly higher in the exposed group(P=0.002); Compared to control group, The protein expression of TNFR1 was significantly higher in the exposed group (P=0.002). By correlation analysis in exposure group, plasma aluminum content was negatively correlated with MMSE and the DST (r=-0.284, r=-0.331, P<0.05) and positively correlated with the SRTT, TNFR1 (mRNA) and TNFR1(protein)(r=0.255, r=0.333, r=0.987, P<0.01), MMSE was negatively related to TNFR1 (mRNA) and TNFR1 (protein) (r=-0.268, r=-0.255, P<0.05); DST was negatively correlated with the SRTT and TNFR1 (protein)(r=-0.267, r=-0.330, P<0.05); SRTT was positively correlated with TNFR1 (protein)(r=0.243, P<0.05); TNFR1 (mRNA) was positively correlated with TNFR1 (protein)(r= 0.340, P<0.01). Conclusion: Cognitive function change of occupational exposed workers to aluminum was related to the increase of TNFR1 expression.
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Affiliation(s)
- L R Li
- Institute of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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28
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Nie J, Yan Z, Duan L, Wang X, Tang D, Niu Q. Involvment of ATM/Chk2-p53 signaling pathway in B[a]P-induced neural cell apoptosis. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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29
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Niu Q. Gene profiles expressed in hippocampus of aluminum-treated rats and the significance for predicting Al-induced neurotoxicity. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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30
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Wang AZ, Fan K, Zhou QH, Wang C, Niu Q, Chan Y. A lateral approach to ultrasound-guided sacral plexus block in the supine position. Anaesthesia 2018; 73:1043-1044. [PMID: 30117581 DOI: 10.1111/anae.14368] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | - K. Fan
- Sixth People's Hospital; Shanghai China
| | | | - C. Wang
- Shanghai Children's Hospital; Shanghai China
| | - Q. Niu
- Shenzhen Hospital; Hong Kong China
| | - Y. Chan
- Shenzhen Hospital; Hong Kong China
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31
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Matsuura K, Mizukami Y, Arai Y, Sugimura Y, Maejima N, Machida A, Watanuki T, Fukuda T, Yajima T, Hiroi Z, Yip KY, Chan YC, Niu Q, Hosoi S, Ishida K, Mukasa K, Kasahara S, Cheng JG, Goh SK, Matsuda Y, Uwatoko Y, Shibauchi T. Maximizing T c by tuning nematicity and magnetism in FeSe 1-x S x superconductors. Nat Commun 2017; 8:1143. [PMID: 29070845 PMCID: PMC5656606 DOI: 10.1038/s41467-017-01277-x] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 09/04/2017] [Indexed: 11/13/2022] Open
Abstract
A fundamental issue concerning iron-based superconductivity is the roles of electronic nematicity and magnetism in realising high transition temperature (T c). To address this issue, FeSe is a key material, as it exhibits a unique pressure phase diagram involving non-magnetic nematic and pressure-induced antiferromagnetic ordered phases. However, as these two phases in FeSe have considerable overlap, how each order affects superconductivity remains perplexing. Here we construct the three-dimensional electronic phase diagram, temperature (T) against pressure (P) and isovalent S-substitution (x), for FeSe1-x S x . By simultaneously tuning chemical and physical pressures, against which the chalcogen height shows a contrasting variation, we achieve a complete separation of nematic and antiferromagnetic phases. In between, an extended non-magnetic tetragonal phase emerges, where T c shows a striking enhancement. The completed phase diagram uncovers that high-T c superconductivity lies near both ends of the dome-shaped antiferromagnetic phase, whereas T c remains low near the nematic critical point.
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Affiliation(s)
- K Matsuura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Y Mizukami
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Y Arai
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - Y Sugimura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - N Maejima
- Synchrotron Radiation Research Center, National Institutes for Quantum and Radiological Science and Technology, Sayo, Hyogo, 679-5148, Japan
| | - A Machida
- Synchrotron Radiation Research Center, National Institutes for Quantum and Radiological Science and Technology, Sayo, Hyogo, 679-5148, Japan
| | - T Watanuki
- Synchrotron Radiation Research Center, National Institutes for Quantum and Radiological Science and Technology, Sayo, Hyogo, 679-5148, Japan
| | - T Fukuda
- Materials Sciences Research Center, Japan Atomic Energy Agency (SPring-8/JAEA), Sayo, Hyogo, 679-5148, Japan
| | - T Yajima
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - Z Hiroi
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - K Y Yip
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Y C Chan
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Q Niu
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - S Hosoi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - K Ishida
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - K Mukasa
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan
| | - S Kasahara
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - J-G Cheng
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, 100190, Beijing, China
| | - S K Goh
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Y Matsuda
- Department of Physics, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Y Uwatoko
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba, 277-8581, Japan
| | - T Shibauchi
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, 277-8561, Japan.
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32
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Niu Q, Yu WC, Yip KY, Lim ZL, Kotegawa H, Matsuoka E, Sugawara H, Tou H, Yanase Y, Goh SK. Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor chromium arsenide. Nat Commun 2017; 8:15358. [PMID: 28580936 PMCID: PMC5465317 DOI: 10.1038/ncomms15358] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 03/15/2017] [Indexed: 11/29/2022] Open
Abstract
In conventional metals, modification of electron trajectories under magnetic field gives rise to a magnetoresistance that varies quadratically at low field, followed by a saturation at high field for closed orbits on the Fermi surface. Deviations from the conventional behaviour, for example, the observation of a linear magnetoresistance, or a non-saturating magnetoresistance, have been attributed to exotic electron scattering mechanisms. Recently, linear magnetoresistance has been observed in many Dirac materials, in which the electron–electron correlation is relatively weak. The strongly correlated helimagnet CrAs undergoes a quantum phase transition to a nonmagnetic superconductor under pressure. Here we observe, near the magnetic instability, a large and non-saturating quasilinear magnetoresistance from the upper critical field to 14 T at low temperatures. We show that the quasilinear magnetoresistance may arise from an intricate interplay between a nontrivial band crossing protected by nonsymmorphic crystal symmetry and strong magnetic fluctuations. The electronic structure of the helimagnet CrAs is unusual due to its nonsymmorphic crystal symmetry. Here, the authors observe quasilinear magnetoresistance close to a pressure-driven superconducting transition, which may arise from the interaction of the band structure and magnetic fluctuations.
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Affiliation(s)
- Q Niu
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China
| | - W C Yu
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China
| | - K Y Yip
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China
| | - Z L Lim
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China
| | - H Kotegawa
- Department of Physics, Kobe University, Kobe 658-8530, Japan
| | - E Matsuoka
- Department of Physics, Kobe University, Kobe 658-8530, Japan
| | - H Sugawara
- Department of Physics, Kobe University, Kobe 658-8530, Japan
| | - H Tou
- Department of Physics, Kobe University, Kobe 658-8530, Japan
| | - Y Yanase
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Swee K Goh
- Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China
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33
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Lu XT, Wang H, Jia ZJ, Li QY, Niu Q. [The effect of aluminum trichloride on expression of phosphorylated tau and Aβ in SH-SY5Y cells]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:359-361. [PMID: 28780795 DOI: 10.3760/cma.j.issn.1001-9391.2017.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the expression of phosphorylated tau (p-tau) and Aβ in SH-SY5Y cells induced by aluminum or/and ApoE ε4 allele, and study the interaction between aluminum and ApoE ε4 allele. Methods: SH-SY5Y cells were assigned to control group, 400 μmol/L AlCl(3) group, ApoEε4 transfected group and 400 μmol/L AlCl(3) with Apo Eε4 transfected group. The cell viability was measured by CCK-8 assay; the expressions of p-tau and Aβ was determined with ELISA Kit after AlCl(3) exposure or or/and ApoE ε4 transfection. Results: The viability of cells exposed to 400 μmol/L AlCl(3) or/and ApoE ε4 transfected were significantly lower than that of controls (P<0.05) . The expressions of total tau, tau-181, tau-231, tau-396 and Aβ in 400 μmol/L Al(3)+ or/and ApoE ε4 transfected exposed cells showed significantly higher than those of controls (P<0.05) . Based on the factorial design, a significant interaction exists, and there is a synergistic effect between AlCl(3) and ApoE ε4 (P<0.05) . Conclusion: Aluminum and ApoE ε4 allele could increase expression of p-tau and Aβ deposition; there was a synergistic interaction between aluminum and ApoE ε4 allele on cell death, tau phosphorylation and Aβ deposition of SH-SY5Y.
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Affiliation(s)
- X T Lu
- Department of Occuoational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Song J, Li ZY, Zhang L, Niu Q. [Effects of subchronic aluminum exposure on long-term potentiation and activities of RAS and extracellular regulated protein kinases in rats]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:328-331. [PMID: 28780786 DOI: 10.3760/cma.j.issn.1001-9391.2017.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To study the effects of subchronic aluminum exposure on LTP and activities of RAS and ERK in rats in vivo. Methods: 24 Wistar rats were randomly divided into control group、low-dose group、medium-dose group and high-dose group, and received saline (control group) or Al (mal) (3) (15 μmol、kg、30 μmol、kg or 45 μmol/kg) via intraperitoneal injection (i.p.) for 8 weeks, respectively. The fEPSP in CA1 region were recorded by field potentiation technique in vivo and the hippocampal activities of RAS and ERK were examined by ELISA. Results: The fEPSP amplitudes of the control group were 1.90±0.19, 1.64±0.15 and 1.54±0.08 at 1, 30 and 60 min after HFS, respectively. The fEPSP amplitudes of the low-dose group were 1.40±0.06 at 60 min, which represented a statistically significant decrease compared to the control group (P<0.05) ; these values at 30min and 60min dropped to 1.33±0.20 and 1.12±0.07 in the medium-dose group (P<0.05) and further decreased to 1.05±0.05 and 0.91±0.10 in the high-dose group (P<0.05) . And the activity dose-dependent decreases were observed both in RAS and ERK: compared with the control group and the low-dose group, the activities of RAS and ERK of the medium-dose and high-dose group significantly decreased (P<0.05) and compared with the medium-dose group, the activities of the high-dose group statistically dropped (P<0.05) . Conclusion: RAS and ERK may be related to the suppression of LTP by subchronic aluminum exposure and the RAS-MAPK transduction pathway may be involved in the damage of learning and memory induced by aluminum.
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Affiliation(s)
- J Song
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Yang XJ, Yuan YZ, Niu Q. [Association between serum aluminium level and methylation of amyloid precursor protein gene in workers engaged in aluminium electrolysis]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 34:255-8. [PMID: 27514256 DOI: 10.3760/cma.j.issn.1001-9391.2016.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the association between serum aluminium level and methylation of the promoter region of amyloid precursor protein (APP)gene in workers engaged in aluminium electrolysis. METHODS In 2012, 366 electrolysis workers in an aluminium factory were enrolled as exposure group (working years >10 and age >40 years)and divided into low-exposure group and high-exposure group based on the median serum aluminium level. Meanwhile, 102 workers in a cement plant not exposed to aluminium were enrolled as control group. Graphite furnace atomic absorption spectrometry was used to measure serum aluminium level, methylation specific PCR was used to measure the methylation rate of the promoter region of APP gene, and ELI-SA was used to measure the protein expression of APP in lymphocytes in peripheral blood. RESULTS The exposure group had a significantly higher serum aluminium level than the control group (45.07 μg/L vs 30.51 μg/L, P< 0.01). The exposure group had a significantly lower methylation rate of the promoter region of APP gene than the control group (18.85% vs 25.49%, P=0.025), and the high-exposure group had a significantly lower methylation rate of the promoter region of APP gene than the low-exposure group (15.84% vs 21.85%, P<0.05). The exposure group had a significantly higher protein expression of APP in lymphocytes in peripheral blood than the control group (66.73 ng/ml vs 54.17 ng/ml, P<0.05); compared with the low-exposure group (65.39 ng/ml), the high-exposure group showed an increase in the protein expression of APP in lymphocytes in peripheral blood (67.22 ng/ml), but there was no significant difference between these two groups (P>0.05). The multivariate logistic regression analysis showed that with reference to the control group, low aluminium exposure (OR=1.86, 95% CI 1.67~3.52)and high aluminium exposure (OR=2.98, 95% CI 1.97~4.15)were risk factors for a reduced methylation rate of the promoter region of APP gene. CONCLUSION Reduced methylation of the promoter region of APP gene may be associated with increased serum aluminium level, and downregulated methylation of the promoter region of APP gene may accelerate APP gene transcription.
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Affiliation(s)
- X J Yang
- Department of Geriatrics, The First Hospital of Shanxi Medical University, Taiyuan 030001, China
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Chen JP, Shang N, He KH, Zhang L, Niu Q, Zhang QL. [Influence of aluminum chloride exposure on embryonic development of zebrafish and neurobehavior of juvenile fish]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:166-170. [PMID: 28511298 DOI: 10.3760/cma.j.issn.1001-9391.2017.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To investigate the influence of aluminum chloride (AlCl(3)) solution on the embryon-ic development of zebrafish and neurobehavior of juvenile fish. Methods: The embryos of zebrafishat 6 hours after fertilization were exposed to AlCl(3) solution at a concentration of 0, 55.0, 60.5, 66.6, 73.5, 80.5, or 100.0 mg/L, and embryonic hatching rates at 48 and 72 hours after fertilization were calculated. The embryos of zebrafishat 6 hours after fertilization were exposed to AlCl(3) solution at a concentration of 0, 60.0, 72.0, 86.4, 103.7, or 124.4 mg/L, and the embryonic mortality rates at 12, 24, 48, 72, and 96 hours after fertilization were calculat-ed. The embryos of zebrafish at 6 hours after fertilization were exposed to AlCl(3) solution at a concentration of 0, 50, 100, 200, 400, or 800 μg/L, and the changes in the neurobehavior of juvenile fish were observed after hatching, including touch-escape reaction at 72 hours after fertilization and autonomic movement and panic es-cape reflex at 7 days after fertilization. Results: Compared with the 0 mg/L group, the≥66.6 mg/L group had a sig-nificant reduction in embryonic hatching rate at 48 and 72 hours after fertilization, and the ≥72.0 mg/L group had a significant increase in embryonic mortality rate at 96 hours after fertilization (P<0.05) . Compared with the 0 μg/L group, the≥100 μg/L group had a significant reduction in the number of times of touch-escape reaction (P<0.05) .Compared with the 0 and 50 μg/L groups, the 100-800 μg/L groups had significant reductions in total movement distance and average speed (P<0.05) . Compared with the dark period before illumination, all groups had a significant increase in movement speed during the light period of the panic escape reflex test (i.e., the third minute) (P<0.05) ; within 2 minutes after the light was turned off, there was no significant change in movement speed in the 0-200 μg/L groups (P>0.05) ; the 400 and 800 μg/L groups had a significant increase in movement speed (P<0.05) . Conclusion: AlCl(3) exposure may cause embryonic developmental disorder in zebrafish and ab-normal neurobehavior in juvenile fish.
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Affiliation(s)
- J P Chen
- Department of Occupational Medicine, Shanxi Medical University, Taiyuan 030001, China
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Ren P, Li R, Yuan YZ, Lu XT, Niu Q. [Influence of occupational aluminum exposure on cognitive function and glutamate receptor protein expression in workers]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:85-90. [PMID: 28355693 DOI: 10.3760/cma.j.issn.1001-9391.2017.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To investigate the influence of occupational aluminum exposure on cognitive function and glutamate receptor protein expression in peripheral blood lymphocytes in workers and the possibility of glutamate receptor being used as a biomarker for cognitive impairment in aluminum workers. Methods: From October to December, 2014, cluster sampling was performed to select 121 workers in aluminum electrolysis workshop as exposure group and 231 workers in thermoelectric workshop and logistics department as control group. Mini-Mental State Examination, clock drawing test, digit span test (DST) , verbal fluency test (VFT) , and Fuld Object-Memory (FOM) Evaluation were used to analyze cognitive function. Graphite furnace atomic absorption spectrophotometry was used to measure plasma aluminum level as an exposure indicator. Enzyme-linked immunosorbent assay was used to measure the content of glutamate receptor proteins in peripheral blood lymphocytes, including the subunits of N-methyl-D-aspartate receptor NR1, NR2A, and NR2B and metabotropic glutamate receptor 1 (mGluR1) . The correlation between cognitive function indices and the content of glutamate receptor proteins was analyzed. Results: There was no significant difference in plasma aluminum level between the control group and the exposure group (132.52±80.40 μg/L vs 182.88±72.32 μg/L, P>0.05) . According to the plasma aluminum level, the study subjects were divided into control group and low-, medium-, and high-level plasma aluminum groups, and there were significant differences in plasma aluminum level between these groups (all P<0.01) . The high-level plasma aluminum group had a significantly lower memory ability score than the control group and the low- and medium-level plasma aluminum groups (all P<0.05) . The high-level plasma aluminum group had lower DST and digital span forward (DSF) scores than the control group and the low-and medium-level plasma aluminum groups. The low-, medium-, and high-level plasma aluminum groups had lower digital span backward (DSB) scores than the control group. The medium-and high-level plasma aluminum groups had lower VFT scores than the control group and the low-level plasma aluminum group. The high-level plasma aluminum group had significantly lower expression of NR1 and NR2A proteins than the control group and the low-and medium-level plasma aluminum groups, and the medium- and high-level plasma aluminum groups had significantly higher expression of mGluR1 protein than the control group and the low-level plasma aluminum group (all P<0.05) . The expression of NR1 and NR2A proteins was negatively correlated with plasma aluminum level (r=-0.475 and -0.692, both P<0.05) , andthe expression of mGluR1 protein was positively correlated with plasma aluminum level (r=0.756, P<0.05) . The expression of NR1 protein was positively correlated with DSF, DSB, DST, and VFT scores (r(s)=0.213, 0.249, 0.271, and 0.228, all P<0.05) , and the expression of NR2A protein was positively correlated with VFT score (r(s)=0.206, P<0.05) . Conclusion: Occupational aluminum exposure may affect workers' memory function, and the expression of NR1 and NR2A in peripheral blood lymphocytes is correlated with cognitive function indices and can be used as biomarkers for cognitive impairment in aluminum workers.
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Affiliation(s)
- P Ren
- School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Qiao Z, Chen Y, Zhang Y, Niu Q. Beneficial effects of deep sea fish oil on diabetic mice neurological injury. ACTA ACUST UNITED AC 2017; 63:45-48. [PMID: 28234624 DOI: 10.14715/cmb/2017.63.1.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 02/22/2017] [Indexed: 11/18/2022]
Abstract
Deep sea fish oil mainly includes polyunsaturated fatty acid, which is usually used as health products and applied for prevention of cardiovascular and cerebrovascular diseases. However, there are only a few studies investigating the diabetes induced nerve injury till now. We established the diabetic model by using the 8-week old inbred male mice, and assumed that fish oil had a certain therapeutic effect on related neurosensory impairment and oxidative stress. Mice were divided into group A (diabetic mice induced by streptozotocin (STZ) and treated with fish oil), group B (diabetic mice) and group C (normal mice, without STZ treatment). The memory and exploration ability were evaluated and oxidation status of brain tissue was detected. Results indicated that memory and exploration ability of fish oil group A was significantly improved compared to diabetic group B (P<0.05), and equal to group C. The malondialdehyde (MDA) level of fish oil group A was decreased significantly and antioxidant level was increased significantly compared to diabetic group B (P<0.05), and equal to group C. In conclusion, deep sea fish oil could be used as auxiliary health care products, which plays important role in preventing and treating implications of nerve lesion impairment induced by diabetes mellitus.
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Affiliation(s)
- Z Qiao
- Nutritional department, Shan xi province people's hospital, Youyi Western Road 256#, Xi'an 710068, China
| | - Y Chen
- Department of cardiology, Xi'an electric power center hospital, Changying Estern 99#, Xi'an 710032, China
| | - Y Zhang
- Department of Paediatrics, Shan xi province people's hospital, Youyi Western Road 256#, Xi'an 710068, China
| | - Q Niu
- Department of Paediatrics, Shan xi province people's hospital, Youyi Western Road 256#, Xi'an 710068, China
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Qiu HY, Ren P, Li R, Zhang QL, Lu XT, Niu Q. [Association between H3K4me3/BDNF and the cognitive function of workers occupationally exposed to aluminum]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:900-904. [PMID: 28241677 DOI: 10.3760/cma.j.issn.1001-9391.2016.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To investigate the influence of occupational aluminum exposure on cognitive function and its relationship with tri-methyl histone H3 lysine residues 4 points (H3K4me3) and brain-derived neurotrophic factor (BDNF) levels. Methods: By cluster random sampling method, a total of 235 cases of male workers selected from a Shanxi aluminum factory were recruited in the study in September 2015. Used the occupational epidemiological investigation questionnaire, which included Mini-Mental State Examination (MMSE) , Clock Drawing Test (CDT) , Digit Span Test (DST, including forward test DSFT and backward test DSBT) , Fuild Object Memory Evaluation (FOME) and Verbal Fluency Test (VFT) , to collect workers' basic information and assess their cognitive function score. Detected the concentration of aluminum in plasma by graphite furnace atomic absorption spectrometry. Workers were divided into three groups by the 25 percentile and 75 percentile of the aluminum content, such as low, middle and high aluminum concentration groups. The concentrations of H3K4me3 in lymphocyte and BDNF in plasma were determined by enzyme-linked immunosorbent assay. Results: The levels of aluminum in plasma was 134.36 (100.14, 178.96) μg/L. The scores of MMSE, DSFT, DSBT, DST of high aluminum concentration group were lower than low aluminum group (27.98±1.25 vs 28.83±1.54, 9.19±2.00 vs 10.64±2.87, 6.08±1.63 vs 7.19±3.07, 15.27±3.11 vs 17.81±4.72, all P<0.05) , the scores of CDT, FOME, VFT among three groups had no statistical significance (all P>0.05) . The expression levels of H3K4me3 and BDNF of high aluminum concentration group were lower than the low group [ (18.45±9.81) ng/μg Pro vs (23.76±9.89) ng/μg Pro, (26.07±10.18) ng/ml vs (31.66±9.24) ng/ml, all P<0.05]. Multiple correlation analysis showed that aluminum concentration were negatively correlated toH3K4me3, BDNF, MMSE, DSFT, DST, respectively (r(s)=-0.307、-0.214、-0.252、-0.197, -0.181, all P<0.01) . Conclusion: Exposure to occupational aluminum for a long time may change cognitive function, which go along with the decreasing of H3K4me3 level in lymphocyte and BDNF protein expression in plasma.
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Affiliation(s)
- H Y Qiu
- Department of Occupational and Environmental Health, Shanxi Medical University, Taiyuan 030001, China
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Wang YL, Yan YZ, He J, Ma JL, Zhang M, Zhang JY, Liu JM, Li SG, Niu Q, Rui DS, Ma RL, Guo H, Ding YS, Guo SX. [Epidemiological characteristics of dyslipidemia in remote rural areas of Xinjiang, 2009-2010]. Zhonghua Yu Fang Yi Xue Za Zhi 2016; 50:996-1000. [PMID: 27916084 DOI: 10.3760/cma.j.issn.0253-9624.2016.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: This study aimed to estimate the prevalence of dyslipidemia, hypertriglyceridemia, hypercholesterolemia, high blood low density lipoprotein cholesterol (LDL-C), and low blood high density lipoprotein cholesterol (HDL-C) in remote rural areas of Xinjiang and analyze these indicators' epidemiological characteristics. Methods: A survey of 13 000 individuals (aged ≥18 years) was conducted using a four-stage cluster random sampling method in Jiashi, Xinyuan, Aheqi, and Shawan Counties, Xinjiang, in 2009-2010. After nonpermanent residents were excluded, 12 154 individuals were included in this study. Questionnaire and physical examinations were conducted, including collection of fasting blood to detect TG, TC, LDL-C, and HDL-C. The results were calculated after complex weighting and compared according to the prevalence of different gender and age groups. Results: The overall levels of TG, TC, LDL-C, and HDL-C were 1.34±1.09, 4.45±1.16, 2.36±0.86, and 1.37±0.58 mmol/L, respectively. After complex weighting, the overall prevalence of dyslipidemia was 35.4%; that among men (42.9%) was greater than that among women (29.5%; χ2=234.19, P<0.001), and the prevalence was 35.9%, 34.5%, and 35.1% (χ2=1.52, P=0.467) in participants aged 18-44, 45-59, and ≥60 years, respectively. The overall prevalence of hypertriglyceridemia was 11.4%; that among men (13.5%) was greater than that among women (9.8%; χ2= 40.72, P<0.001), and the prevalence was 9.6%, 13.0%, and 13.2% (χ2=38.71, P<0.001) in participants aged 18-44, 45-59, and ≥60 years, respectively. The prevalence of hypercholesterolemia was 5.7%; that among men(5.0%) was greater than that among women (6.2%; χ2=6.95, P=0.008), and the prevalence was 3.5%, 7.4%, and 8.4% (χ2=105.24, P<0.001) in participants aged 18-4, 45-59, and ≥60 years, respectively. The prevalence of high blood LDL-C was 2.8%, and there was no significant difference between men (3.0%) and women (2.4%; χ2=1.43, P=0.231); the prevalence was 3.5%, 7.4%, and 8.4% (χ2=42.81, P<0.001) in participants aged 18-44, 45-59, and ≥60 years, respectively. The prevalence of low blood HDL-C was 24.0%; that among men (31.6%) was greater than that among women (18.0%; χ2=304.02, P<0.001), and the prevalence was 27.8%, 20.6% and 19.5% (χ2=96.61, P<0.001) in participants aged 18-44, 45-59, and ≥ 60 years, respectively. Conclusions: Low blood HDL-C was the main type of dyslipidemia among the population in remote rural areas of Xinjiang. The prevalence of dyslipidemia among men was greater than that among women, and there was a trend of younger men than women showing dyslipidemia.
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Affiliation(s)
- Y L Wang
- Department of Public Health, School of Medicine, Shihezi University; Department of Pathology and Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), Shihezi 832000, China
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Niu Q, Li Z, Kang P, Zhang Q, Lu X, Nie J, Song J, Wang L. Expression of H3K9ac, H3K9me2 mediated by signal pathway of NMDAR-ERK in the hippocampus of rats chronically exposed to aluminum. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hu YH, Liu JM, Zhang M, He J, Yan YZ, Ma JL, Ma RL, Guo H, Rui DS, Sun F, Mu LL, Niu Q, Ding YS, Zhang JY, Li SG, Guo SX. [Association between CETP polymorphisms and haplotypes with dyslipidemia in Xinjiang Uygur and Kazak residents]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:671-677. [PMID: 27545125 DOI: 10.3760/cma.j.issn.0253-3758.2016.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To explore the relationship between the polymorphisms and haplotypes in the CETP gene and dyslipidemia among Xinjiang Kazak and Uygur residents. METHODS A population status survey was performed from 2010 to 2011 in Kashgar Xinjiang Uygur and Kazak residents, stratified cluster sampling method was used to select Uygur, Kazak residents with abnormal blood lipid values (n=367 and 345, respectively) as the dyslipidemia groups, and to select residents with normal lipid values as control group from the same area (n=374 and 390, respectively). SNaPshot technology was applied to detect the DNA of CETP gene rs3764261, rs1800775, rs708272 and rs5882 loci in all selected residents, and linkage disequilibrium analysis and haplotype construction were performed. RESULTS (1) In Uygur residents, the dyslipidemia risk of rs708272 CT (OR=0.64, 95%CI 0.46-0.91, P=0.01) and TT genotype (OR=0.60, 95%CI 0.40-0.91, P=0.02) was significantly lower than CC genotype. Dyslipidemia risk of rs3764261 GT (OR=0.55, 95%CI 0.40-0.74, P=0.00) and TT genotype (OR=0.47, 95%CI 0.28-0.78, P<0.01) was significantly lower than GG genetype. Dyslipidemia risk of the rs1800775 CC genotype was higher than AA genotype (OR=1.79, 95%CI 1.17-2.74, P=0.01). There was no statistical significance in CETP gene of the 4 genotype and allele frequency between the dyslipidemia and normal lipid groups in Kazak residents (all P>0.05). (2) In Uighur residents with dyslipidemia, HDL-C level was significantly higher in rs708272 TT genotype carriers than in CC and CT genotypes (all P<0.05) and in rs3764261 TT genotype carriers than in GG genotype carriers (P=0.008), while was significantly lower in rs1800775 CC genotype carriers with AA genotype carriers (P=0.008). (3) Linkage disequilibrium analysis showed that there was strong linkage disequilibrium between rs3764261 and rs708272 (D'=0.869, r(2)=0.869), rs1800775 and rs708272 (D'=0.845, r(2)=0.446) in Uighur residents, and there was strong linkage disequilibrium between rs3764261 and rs708272 (D'=0.963, r(2)=0.963), rs1800775 and rs708272 (D'=0.988, r(2)=0.630) in Kazak residents. (4) Significant differences were observed in frequency distribution of haplotype GACA(OR=0.579, 95%CI 0.388-0.864, P=0.006), GATA (OR=2.183, 95%CI 1.231-3.873, P=0.006), GCCA (OR=0.723, 95%CI 0.549-0.954, P=0.001), TATA (OR=0.723, 95%CI 0.549-0.954, P=0.021) and TATG (OR=0.601, 95%CI 0.429-0.841, P=0.002) in Uighur residents with normal or abnormal lipid profiles, while significant difference was observed in frequency distribution of haplotype GCCG (OR=1.961, 95%CI 1.207-3.188, P=0.005) in Kazak residents with normal or abnormal lipid profiles. CONCLUSION CETP genotype rs708272, rs3764261 and rs1800775 polymorphism is closely related to dyslipidemia and haplotype GACA, TATA and TATG will reduce the risk of dyslipidemia, while haplotype GATA, GCCA will increase the risk of dyslipidemia in Uygur residents. The four CETP polymorphisms are not related to the risk of dyslipidemia, but haplotype GCCG is related to increased risk of dyslipidemia in Kazakhs residents.
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Affiliation(s)
- Y H Hu
- Department of Preventive Medicine, School of Medicine, Shihezi University, Shihezi 832002, China
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Chen YW, Li B, Niu Q, Li L, Kan JW, Zhu SM, Shen SB. Combined promoting effects of low-Pd-containing and Cu-doped LaCoO3 perovskite supported on cordierite for the catalytic combustion of benzene. Environ Sci Pollut Res Int 2016; 23:15193-15201. [PMID: 27094280 DOI: 10.1007/s11356-016-6594-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 03/30/2016] [Indexed: 06/05/2023]
Abstract
The catalytic activities for benzene oxidation and resistance to SO2 poisoning were tested for a series of Pd/La-Cu-Co-O/cordierite catalysts, which were prepared using a multiple-step impregnation method. The XRD, SEM, and IR characterization techniques were performed to investigate the relationship between the catalytic performance and its physicochemical properties. When Pd/La-Cu-Co-O/cordierite catalysts with Pd loadings of 0.06 and 0.08 % were prepared at a calcination temperature of 500 °C for 5 h, they exhibited similar catalytic activity and sulfur resistance. When the concentration of benzene was 1500 ppm and the GHSV was 20000 h(-1), the benzene conversion was above 95 % at a reaction temperature of 350 °C in SO2 existing at 100 ppm. These results were mainly attributed to the cooperation between La-Cu-Co-O perovskite and the noble metal Pd. Specifically, the addition of copper can strengthen the catalytic activity of La-Co-O/cordierite catalysts by decreasing the crystalline size of the active ingredients. A moderate Pd addition can drastically improve the sulfur resistance and further improve the catalytic activity of the La-Cu-Co-O/cordierite catalyst.
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Affiliation(s)
- Y W Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China.
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China.
| | - B Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Q Niu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - L Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - J W Kan
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - S M Zhu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - S B Shen
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China
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44
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Niu D, Zhu F, Qiu R, Niu Q. Exposure to electromagnetic fields aboard high-speed electric multiple unit trains. J BIOL REG HOMEOS AG 2016; 30:727-731. [PMID: 27655489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
High-speed electric multiple unit (EMU) trains generate high-frequency electric fields, low-frequency magnetic fields, and high-frequency wideband electromagnetic emissions when running. Potential human health concerns arise because the electromagnetic disturbances are transmitted mainly into the car body from windows, and from there to passengers and train staff. The transmission amount and amplitude distribution characteristics that dominate electromagnetic field emission need to be studied, and the exposure level of electromagnetic field emission to humans should be measured. We conducted a series of tests of the on board electromagnetic field distribution on several high-speed railway lines. While results showed that exposure was within permitted levels, the possibility of long-term health effects should be investigated.
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Affiliation(s)
- D Niu
- Electrical Engineering School, Southwest Jiaotong University, China
| | - F Zhu
- Electrical Engineering School, Southwest Jiaotong University, China
| | - R Qiu
- Electrical Engineering School, Southwest Jiaotong University, China
| | - Q Niu
- Department of Occupational Health, Shanxi Medical University, China
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Carmignani M, Felaco M, Boscolo P, Di Gioacchino M, Di Giampaolo L, Niu Q, Cesare P, Volpe AR. Clastogenic but Not Apoptotic Effects on Human Artery Endothelial Cells by Concentrations of Inorganic Lead Inhibiting Their Nitric Oxide Production. Int J Immunopathol Pharmacol 2016; 17:37-44. [PMID: 15345190 DOI: 10.1177/03946320040170s207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Human coronary artery endothelial cells (HCAEC 5156) were cultured as monolayers and exposed to concentrations of lead (as acetate, Pb) in the culture medium similar or lower than those commonly found in the blood of human beings occupationally or environmentally exposed to this element. Only at the concentration of 200 ng/mL, Pb reduced growth rate of HCAEC 5156 cells starting from the 3rd day and up to the 5th day of incubation. On the other hand, Pb (0.2, 2 and 200 ng/mL) increased concentration-dependently micronuclei formation in binucleated HCAEC5156 cells, as it was shown by the cytokinesis-blocked micronucleus assay (CBMN assay) carried out after 48 hours of exposure to the metal. However, Pb was unable, at all the above concentrations, to induce apoptosis in HCAEC 5156 cells following a 48 hour-exposure, as shown by an electrophoretic apoptotic DNA fragmentation test. Moreover, Pb (2 and 200 ng/mL) reduced significantly the concentration of nitric oxide (NO, determined analytically as L-citrulline) in both culture medium and cytosol of HCAEC 5156 cells following a 7 day-exposure to the element. Results were discussed also in relation to evidences of other studies reporting genotoxic and/or apoptotic effects of Pb on various cell types at very elevated dosages or concentrations. The observed clastogenic effects of Pb were explained through a series of mechanisms involving interactions between oxygen reactive species and NO and/or reduced NO synthesis in the endothelium, thus leading to a depressed NO bioavailability. This research first shows that Pb is provided with clastogenic but not apoptotic effects on cultured human endothelial cells. It was emphasized that such effects are induced by Pb concentrations similar to those commonly found in blood and tissues of laboratory animals showing Pb induced cardiovascular and/or neuropsychological alterations.
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Affiliation(s)
- M Carmignani
- Section of Pharmacology and Toxicology, Department of Basic and Applied Biology, University of L'Aquila, Coppito, Italy
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Abstract
High-level occupational manganese (Mn) exposure has been reported to induce irreversible brain alterations determining a Parkinson-like disease. This study aimed to assess subclinical neurophysiological alterations in welding workers. They were employed in a machine building factory with an average Mn exposure <200 mg/m3. Sixty-eight welding workers (mean age: 34 years; mean Mn exposure duration: 16 years) and 42 flour factory workers (control group) with similar age and smoking habit were recruited. Autonomic nervous function test battery (ANSFT), composed of Valsalva maneuvre-induced heart rate variation (HR-V), heart rate variation following deep breathing (HR-DB) and heart rate variation following immediate standing up (HR-IS) was assessed. Electroencephalogram (EEG), brain electricity activity mapping (BEAM) were also performed. HR-V, HR-DB and HR-IS were significantly lower in Mn- exposed subjects showing altered autonomic nervous system activity, parasympathetic-sympathetic imbalance and, consequently, altered cardiovascular regulation and reactivity. The EEG of the Mn-exposed workers evidenced β-wave rhythms significantly reduced, Θ-waves markedly increased and abnormal wave activities of either localized or diffusive type. In the same workers, BEAM revealed higher Θ, δ and β power values in the F7 area, lower d power values in the FP1, FP2 and C4 areas as well as dissymmetry in the central area, parietal region and occipital region. This study suggests that Mn impairs neuron activity within central nervous system. In this context, brainstem parasympathetic and sympathetic centers, receiving axon projections from cortical and diencephalic areas, may reflect Mn effects on upper pathways. However, direct actions of Mn on these centers cannot be excluded.
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Affiliation(s)
- S C He
- Department of Psychology, Peking University, Beijing, PR China
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47
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Niu Q, Shuchang H, Sheng W, Di Gioacchino M, Verna N, Volpe AR, Di Giampaolo L, Carmignani M, Boscolo P. Neurobehavioral Functions, Serum Prolactin and Plasma Renin Activity of Manganese-Exposed Workers. Int J Immunopathol Pharmacol 2016; 17:17-24. [PMID: 15345187 DOI: 10.1177/03946320040170s204] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective of this study was to assess effects of manganese (Mn) exposure on 56 workers employed in a Mn welding workshop of a machine building factory in Taiyuan (Shanxi Province, P.R. China) for a mean period of 16.1 years. The mean air Mn level in the workshop was 138.4 μg/m3. Neurobehavioral Core Test Battery (NCTB), including the Profile of Mood States (POMS), was performed. Blood pressure (BP) increase following immediate stand-up (BP-IS), serum prolactin (PRL) and plasma renin activity (PRA) in supine position were also determined. Most of the NCTB scores of the Mn-exposed workers were lower than those of the controls, while the POMS scores were higher, indicating a Mn-induced impairment of neurophysiological functions and a deflection of mood towards negative emotion states. PRL values of the Mn-exposed workers were higher than those of the controls. BP-IS of Mn-exposed workers was significantly lower than that of the controls. PRA of the same workers was augmented more than 200 %. In the Mn-exposed workers, the higher PRL values are possibly due to a reduced inhibitory effect on pituitary lactotrope cells by the tubero-infundibular dopamine system; the decreased BP-IS was referred to imbalance between the sympathetic and parasympathetic activities, whereas the higher basal PRA was thought to depend on neuroendocrine changes (including increased central sympathetic tone) and/or on a direct effect of Mn on renal juxta-glomerular cells. On the whole, this study demonstrates that occupational Mn exposure is responsible for neurobehavioral changes coexisting with alterations of neuroendocrine and humoral systems.
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Affiliation(s)
- Q Niu
- Department of Occupational Health, Shanxi Medical University, Taiwan, (PR China)
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48
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Liu N, Yang L, Yang W, Jiang S, Zhang G, Niu Q, Qian X, Yang Z. Effects of feeding naturally contaminated diet with zearalenone, fumonisin and deoxynivalenol with or without yeast cell wall adsorbent on growth, vulva size and organ weights of gilts. J Anim Feed Sci 2016. [DOI: 10.22358/jafs/65574/2016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Feng DW, Ma RL, Guo H, He J, Yan YZ, Muratbek, Niu Q, Li SG, Rui DS, Sun F, Zhang M, Zhang JY, Ding YS, Liu JM, Wang K, Guo SX. Association of APOA1 gene polymorphisms (rs670, rs5069, and rs2070665) with dyslipidemia in the Kazakhs of Xinjiang. Genet Mol Res 2016; 15:gmr8094. [PMID: 27173266 DOI: 10.4238/gmr.15028094] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The aim of this study was to investigate the potential association between apolipoprotein A1 (APOA1) gene rs670, rs5069, and rs2070665 polymorphisms and dyslipidemia in the Kazakh population of Xinjiang, China. Matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS) was used to identify APOA1 (rs670, rs5069, and rs2070665) genotypes in 736 subjects (341 dyslipidemia patients and 395 control subjects). The frequencies of the CC genotype for rs1421085 were found to be 7.2% (obese group), 4.4% (overweight group), and 5.6% (control group). Polymorphisms of the three loci of the APOA1 gene in Kazakh subjects met Hardy-Weinberg equilibrium. The frequencies of the A allele for rs670 were found to be 14.3% (dyslipidemia group) and 12.7% (control group). The frequencies of the T allele for rs5069 and rs2070665 were: dyslipidmia group (7.2 and 30.1%, respectively) and control group (7.7 and 32.5%, respectively). Frequency distributions of the 3 types of genotypes and alleles of the three loci showed no statistically significant difference (P > 0.05). Significant differences were observed in lipoprotein (α) [Lp(α)] between patients with the rs2070665 CT + TT and CC genotypes (P < 0.05); however, none of the other relevant indicators differed significantly between the two genotypes. No significant association was identified between rs670 or rs5069 and the lipid-related metabolic indices assessed in the study. These findings indicate that the polymorphisms in the APOA1 gene (rs670, rs5069, and rs2070665) are not associated with dyslipidemia in the Kazakh population assessed in this study.
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Affiliation(s)
- D W Feng
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - R L Ma
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - H Guo
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - J He
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - Y Z Yan
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - Muratbek
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - Q Niu
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - S G Li
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - D S Rui
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - F Sun
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - M Zhang
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - J Y Zhang
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - Y S Ding
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - J M Liu
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - K Wang
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
| | - S X Guo
- Department of Preventive Medicine, Medical College of Shihezi University, XinJiang, China
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Pang YX, Wu XH, Chen JP, Qiu HY, Niu Q, Zhang QL. [Aluminuminduced impairment in primary cultured rat choroid plexus epithelial cells]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:286-90. [PMID: 27514264 DOI: 10.3760/cma.j.issn.1001-9391.2016.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the impairment in primary cultured rat choroid plexus epithelial cells (CPECs)induced by aluminum. METHODS The choroid plexus isolated from Sprague-Dawley rats 14 days old was cut into pieces and digested by trypsin in the sterile area. The obtained single cells were cultured in DMEM with 1% epidermal growth factor and 20% fetal calf serum. Five days later, immunohistochemistry with anti-transthyretin antibody was used to identify the purity of cultured cells. The well-grown cells were treated with aluminum lactate at different concentrations (0, 100, 400, and 1 600 μmol/L for control, lowdose, mediumdose, and highdose groups). Fortyeight hours later, the cell viability, apoptotic rate, level of reactive oxygen species (ROS), and activity of superoxide dismutase (SOD)were measured in each group to evaluate the impairment in primary cultured rat CPECs by aluminum. RESULTS More than 95% of the cultured cells were identified as CPECs. The medium-and high-dose groups had significantly lower cell viability than the control group(86.74%±4.03% vs 100%, P<0.01; 81.90%±9.17% vs 100%, P<0.01). The high-dose group had significantly lower cell viability than the lowdose group (81.90%±9.17% vs 92.92%±8.81%, P<0.01). The medium-and high-dose groups had significantly higher apoptotic rates than the control group (7.26%±0.99% vs 1.29%±0.03%, P<0.01; 22.25%±1.55% vs 1.29%±0.03%, P<0.01)and the low-dose group (7.26%±0.99% vs 1.68%±0.27%, P<0.01; 22.25%±1.55% vs 1.68%±0.27%, P<0.01). The high-dose group had a significantly higher apoptotic rate than the medium-dose group (22.25%±1.55% vs 7.26%±0.99%, P<0.01). The mediumand high-dose groups had significantly higher fluorescence intensity of ROS than the control group (22.23%±0.41% vs 17.24%±0.09%, P<0.05; 25.10%±1.13% vs 17.24%±0.09%, P<0.05)and the lowdose group (22.23%±0.41% vs 18.31%±0.21%, P<0.05; 25.10%±1.13% vs 18.31%±0.21%, P<0.05). The highdose group had significantly higher fluorescence intensity of ROS than the mediumdose group (25.10%±1.13% vs 22.23%±0.41%, P< 0.05). The low-, medium-and high-dose groups had significantly lower SOD activity than the control group[(28.65±0.74)U/g Hb vs (37.35±1.05)U/g Hb, P<0.05; (22.75±1.94)U/g Hb vs (37.35±1.05)U/g Hb, P<0.05; (13.29±0.64)U/g Hb vs(37.35±1.05)U/g Hb, P<0.05]. The medium-and high-dose groups had significantly lower SOD activity than the low-dose group[(22.75±1.94)U/g Hb vs(28.65±0.74)U/g Hb, P<0.05; (13.29±0.64)U/g Hb vs (28.65±0.74)U/g Hb, P<0.05], while the high-dose group had had significantly lower SOD activity than the medium-dose group[(13.29±0.64)U/g Hb vs (22.75±1.94)U/g Hb, P<0.05]. There were no significant differences in cell viability, apoptotic rate, level of ROS, or activity of SOD between any other two groups (P>0.05). CONCLUSION Aluminum lactate may induce impairment in primary cultured rat CPECs. It reduces the cell viability, elevates the apoptotic rate, and causes oxidative stress.
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Affiliation(s)
- Y X Pang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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