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Zhang E, Wang Q, Guan Q, Yang X, Luo H, Zhang J, Du Q, Zhang Z. Re-intensification of flash drought in western China over the past decade: Implications of fluctuating wetting trend. Sci Total Environ 2024; 919:170878. [PMID: 38360306 DOI: 10.1016/j.scitotenv.2024.170878] [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] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 02/02/2024] [Accepted: 02/08/2024] [Indexed: 02/17/2024]
Abstract
Climate changes and human activities have led to a rise of frequency and intensity of the global flash droughts, resulting in severe consequences for ecosystems, agriculture, and human societies. However, research dedicated to flash droughts in the dryland of western China is relatively limited, leaving their evolutionary characteristics and development processes of these phenomena unclear. To bridge this gap, this study analyzed the spatiotemporal characteristics of flash droughts in western China from 1981 to 2020, based on the standardized evapotranspiration stress index. Additionally, we investigated the development mechanisms by taking meteorological conditions and soil moisture into account. The findings revealed that the northern Qinghai-Tibet Plateau, western Qilian Mountains, and western and southern Loess Plateau are hotspots of flash droughts, characterized by rapid development rates. Across most of the study area, flash drought events persisted between 25 and 30 days. Adequate precipitation is necessary before the onset of flash droughts in western China, while water scarcity and high temperatures played crucial roles in driving the mid-stage of flash droughts. Within the context of the observed "warming and wetting" trend, the average flash droughts occurrence from 2011 to 2020 was approximately 16 % lower than that from 1981 to 1990, and there was a significant annual decrease in spatial coverage of 0.01 % per year. However, in the "wetting in west, drying in east" trend, the spatial coverage of flash droughts has shifted from a declining trend to an insignificant increasing trend since 2000 in the study area, with significant regional differences between the western and eastern regions. Over the past decade, flash droughts had once again intensified in the central Qinghai-Tibet Plateau and the Loess Plateau due to warming and fluctuating wetting trends, raising significant concerns for future ecosystem and agricultural water management in these regions.
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Affiliation(s)
- Erya Zhang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingzheng Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Xinyue Yang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Haiping Luo
- College of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Jun Zhang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qinqin Du
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Zepeng Zhang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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Zhu J, Min N, Zhang Y, Wu H, Hong C, Geng R, Wei Y, Guan Q, Zheng Y, Li X. Contralateral prophylactic mastectomy for unilateral breast cancer in Chinese female population: a retrospective cohort study. Gland Surg 2023; 12:1668-1685. [PMID: 38229836 PMCID: PMC10788567 DOI: 10.21037/gs-23-384] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/09/2023] [Indexed: 01/18/2024]
Abstract
Background Due to differences in socioeconomic and cultural backgrounds, the characteristics and prognosis of Asian female patients choosing contralateral prophylactic mastectomy (CPM) are likely to be different from Western patients. To fill the research gap of CPM in Asian populations, this study aims to explore the application trend, survival benefits, decision-making factors, and satisfaction of CPM based on the Chinese patients undergoing CPM. Methods The 0-III stage unilateral breast cancer (UBC) patients who received breast surgery in the Chinese PLA General Hospital from 2005 to 2017 were selected. The surgical procedures included simple mastectomy (SM), nipple-sparing mastectomy (NSM), breast conserving surgery (BCS), and CPM. Cox proportional regression analyses and Kaplan-Meier (KM) curve were performed to compare the overall survival (OS) and disease-free survival (DFS) rates between CPM group and unilateral mastectomy (UM) group. Proportional propensity score matching (PSM) with a 1:1 ratio was used to match the two groups and secondary survival analysis was performed. Logistic regression models were used to test predictive factors related to patients' CPM surgical decision-making. Results Four thousand two hundred and seventy-six patients were included in the study, with 73 patients receiving CPM, 3,567 receiving SM, 151 receiving NSM, and 485 receiving BCS. CPM surgery was first used in 2007, with a peak application rate of 3.02% in 2016. Three thousand seven hundred and ninety-one patients were included in the survival analysis, with a median follow-up time of 66.60 months. Compared to UM patients, neither the KM survival curve nor Cox regression hazard analyses of CPM showed better OS (P=0.963; P=0.834). After PSM, CPM also did not exhibit significant survival benefits in OS (P=0.335) and DFS (P=0.409). The logistic regression analyses showed that NSM surgery and lower tumor-node-metastasis (TNM) stage were independent factors to promote the CPM decision-making of patients. The CPM group showed high overall satisfaction (84.9%) and relatively low appearance satisfaction (69.9%). Conclusions CPM was practiced for the first time since 2007 in our hospital. CPM does not provide any OS and DFS benefits compared to UM and the appearance satisfaction procedure was relatively low. Therefore, clinicians should fully communicate with patients before surgery and be more cautious in giving CPM recommendations.
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Affiliation(s)
- Jingjin Zhu
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Ningning Min
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yanjun Zhang
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Huan Wu
- Medical Big Data Research Center, Chinese PLA General Hospital, Beijing, China
| | - Chenyan Hong
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Rui Geng
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yufan Wei
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Qingyu Guan
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yiqiong Zheng
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiru Li
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
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Zhang G, Guan Q, Zhao Y, Wang S, Li H. miR-1-3p Inhibits Osteosarcoma Cell Proliferation and Cell Cycle Progression While Promoting Cell Apoptosis by Targeting CDK14 to Inactivate Wnt/Beta-Catenin Signaling. Mol Biotechnol 2023:10.1007/s12033-023-00811-1. [PMID: 37420040 DOI: 10.1007/s12033-023-00811-1] [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] [Received: 04/17/2023] [Accepted: 06/28/2023] [Indexed: 07/09/2023]
Abstract
Osteosarcoma (OS) is a common bone malignancy and is diagnosed frequently in children and young adults. According to previous RNA sequencing, miR-1-3p is downregulated in OS clinical samples. Nevertheless, the functions of miR-1-3p in OS cell process and the related mechanism have not been revealed yet. In the current study, miR-1-3p expression in OS tissues and cells were evaluated using quantitative polymerase chain reaction. CCK-8 assays were conducted to measure OS cell viability in response to miR-1-3p overexpression. Colony forming assays and EdU staining were conducted for measurement of cell proliferation, and flow cytometry analysis was performed to determine cell apoptosis and cell cycle progression. Protein levels of apoptotic markers, beta-catenin, and Wnt downstream targets were quantified using western blotting. The binding relation between miR-1-3p and cyclin dependent kinase 14 (CDK14) was validated utilizing luciferase reporter assays. Experimental results revealed that miR-1-3p expression was decreased in OS tissues and cells. Additionally, miR-1-3p inhibited cell proliferation and cell cycle progression while enhancing OS cell apoptosis. Moreover, miR-1-3p directly targeted CDK14 and inversely regulated CDK14 expression in OS cells. Furthermore, miR-1-3p inactivated the Wnt/beta-catenin signaling. CDK14 overexpression partially rescued the inhibitory impact of miR-1-3p on OS cell growth. Overall, miR-1-3p inhibits OS cell proliferation and cell cycle progression while promoting cell apoptosis by targeting CDK14 and inactivating the Wnt/beta-catenin signaling.
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Affiliation(s)
- Guangheng Zhang
- Department of Orthopaedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.39 Yanhu Road East Lake Scenic Area, Wuhan, 430077, Hubei, China
| | - Qingyu Guan
- Medical School, Jianghan University, Wuhan, 430056, Hubei, China
| | - Yingsong Zhao
- Department of Orthopaedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.39 Yanhu Road East Lake Scenic Area, Wuhan, 430077, Hubei, China
| | - Siyuan Wang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430077, China
| | - Hewei Li
- Department of Orthopaedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.39 Yanhu Road East Lake Scenic Area, Wuhan, 430077, Hubei, China.
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Wang Q, Guan Q, Sun Y, Du Q, Xiao X, Luo H, Zhang J, Mi J. Simulation of future land use/cover change (LUCC) in typical watersheds of arid regions under multiple scenarios. J Environ Manage 2023; 335:117543. [PMID: 36848808 DOI: 10.1016/j.jenvman.2023.117543] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/25/2022] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
The rapid development of the social economy has promoted a continuous increase in the intensity and scale of land use by humans, which has seriously affected the sustainable development of the region. It is important to understand the land use/cover change (LUCC) in the arid region and its future development trends and to make reasonable planning recommendations for the sustainable development of the ecological environment. This study validates the patch-generating land use simulation (PLUS) model in a typical arid region, the Shiyang River Basin (SRB), and analyzes the applicability of the model in arid regions. On this basis, the PLUS model is combined with the scenario analysis method to design four scenarios including no policy intervention, farmland protection, ecological protection and sustainable development to analyze the dynamic changes in past and future land use in the SRB and to make corresponding planning recommendations for the development of each type of land use in the arid region. The results showed that the PLUS model had a better simulation effect in the SRB (its overall accuracy reached 0.97). Coupled models obtain better simulation results than quantitative and spatial models by comparing the mainstream models, with PLUS model that combines CA model and patch generation strategy showing better simulation results in the same category. From 1987 to 2017, the spatial centroid of each LUCC in the SRB moved to varying degrees due to a continuous increase in human activities. The spatial centroid of water bodies had the most obvious change, with a moving speed of 1.49 km/a, while the moving speed of built-up land increased year by year. The spatial centroid of farmland, built-up land and unused land all shifted toward the middle and lower plains, which is a further indication of increased human activity. Due to different government policies, the development trend of land use was also different under different scenarios. However, the four scenarios all showed that the area of built-up land will be increasing exponentially from 2017 to 2037, which would seriously affect the surrounding ecological land and have a negative impact on the local agro-ecological environment. Therefore, we proposed the following planning recommendations: (1) Land leveling work should be carried out on scattered farmland located at high altitudes and with slopes over 25°. Additionally, the land use of low-altitude areas should strictly adhere to basic farmland, increase the diversification of cropping patterns and improve the efficiency of agricultural water. (2) The relationship between ecology, farmland and cities should be reasonably coordinated and the existing idle built-up land should be efficiently used. (3) Forestland and grassland resources should be strictly protected and the ecological redline should be strictly observed. This study can provide new ideas for LUCC modeling and prediction in other parts of the world and provide a strong basis for ecological management and sustainable development in arid areas.
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Affiliation(s)
- Qingzheng Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Yunfan Sun
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qinqin Du
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Xiong Xiao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Jun Zhang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Jimin Mi
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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Wei Y, Dai Y, Guan Q, Min N, Geng R, Hu H, Li J, Zheng Y, Liu M, Li X. Predicting the recurrence-free survival of phyllodes tumor of the breast: a nomogram based on clinicopathology features, treatment, and surgical margin. Gland Surg 2023; 12:152-164. [PMID: 36915816 PMCID: PMC10005977 DOI: 10.21037/gs-22-542] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/05/2022] [Indexed: 02/15/2023]
Abstract
Background Grading based on histopathologic indicators cannot accurately assess the prognosis of phyllodes tumor (PT) of the breast. This article aimed to investigate the correlation between PT prognosis and clinicopathological features, treatment, and surgical margin. Methods The clinicopathological data of patients with pathologically confirmed PT at our institution were retrospectively collected. Univariate and multivariate Cox proportional risk models were employed to test the effects of different variables on the prognosis of PT. A nomogram to predict the 1-, 3-, 5-, and 10-year recurrence-free survival (RFS) of PT was proposed, and its discriminative ability and calibration were tested using the concordance index (C-index), area under the curve (AUC), and calibration plots. All statistical analyses were performed using R. Results A total of 342 PT patients were included, including 242 benign (70.8%), 75 borderline (21.9%) and 25 malignant (7.3%) cases. The median follow-up period was 64.5 months (range, 3-179 months), 66 PT patients had local recurrence (LR), and four patients had distant metastasis. The 1-, 3-, 5-, and 10-year RFS of the PT patients were 90.8%, 81.8%, 78%, and 76.7%, respectively. Age, fibroadenoma (FA) surgery history, treatment, mitotic activity, and surgical margin were selected as the independent factors for PT prognosis. The nomogram showed good discriminative ability and calibration, as indicated by the C-index [0.78, 95% confidence interval (CI): 0.75-0.11]. Conclusions Independent predictors related to PT prognosis were selected to establish a nomogram for predicting the RFS of PT. This nomogram was able to objectively stratify PT patients into prognostic groups and performed well in the internal validation.
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Affiliation(s)
- Yufan Wei
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yongjing Dai
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Qingyu Guan
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Ningning Min
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Rui Geng
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Huayu Hu
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jie Li
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yiqiong Zheng
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Mei Liu
- Department of Pathology, The Six Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiru Li
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
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Liu Z, Du Q, Guan Q, Luo H, Shan Y, Shao W. A Monte Carlo simulation-based health risk assessment of heavy metals in soils of an oasis agricultural region in northwest China. Sci Total Environ 2023; 857:159543. [PMID: 36272483 DOI: 10.1016/j.scitotenv.2022.159543] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [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: 06/03/2022] [Revised: 08/10/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
In recent years, heavy metal contamination of soils has been increasing, posing a major threat to food security, human health, and soil ecosystems. This study analyzed the spatial characteristics, contamination sources, risks of heavy metals by collecting topsoil samples from farmland in an oasis agricultural region in northwest China. The results found that soil heavy metals in farmland were at a moderate contamination level. The PMF model classifies soil heavy metals as fertilizer and pesticide sources dominated by As and Mn with 27.8 %, mixed sources of transport and agricultural sources dominated by Cu, Zn, Cd and Pb with 26.9 %, metal processing sources dominated by Cr and Ni with 22.6 %, and the combined pollution sources of Ti, V, Cr, Mn, Fe, As, Pb dominated by natural sources and fuel combustion. The noncarcinogenic and carcinogenic risks values from the ingestion route were higher for children than for adults. The non-carcinogenic risk of heavy metals to adults in the southwestern and central regions of the study area was >1 × 10-4. The carcinogenic risk was >1 in all adults, but >1 in children in the central and southwestern study areas. Monte Carlo simulation takes into account the parameters and their distributions that affect the health risk assessment model by combining the uncertainty assessment with the health risk, which will reduce the uncertainty of the health risk assessment. The results showed that conventional deterministic risk assessment may overestimate health risk outcomes. In addition, As has a 1.85 % probability of non-carcinogenic risk to children, and an 85.3 % probability of total non-carcinogenic risk for children for all heavy metals. 69.5 % and 11.4 % probability of carcinogenic risk for children and adults respectively for Ni, and 96.4 % and 52.1 % probability of total carcinogenic risk, suggesting that Ni is a priority control heavy metal.
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Affiliation(s)
- Zhan Liu
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qinqin Du
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yuxin Shan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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Wang J, Shen Y, Chen J, Chen X, Guan Q, Liu Q, Xu J, Xu Y, Zhang B, Zhang H, Zhu Y, Zhang Y. 202TiP A single-arm, open, multicenter and exploratory clinical study of fluzopari combined with apatinib in pts with platinum-sensitive relapsed ovarian cancer first-line treated with a PARP inhibitor. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.238] [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: 12/05/2022] Open
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Zhang B, Guan Q, Zhu Y, Zhu J, Liu X, Li S, Yang R, Li X. Smoke analysis of a new surgical system that applies low-temperature plasma. Ann Transl Med 2022; 10:1053. [PMID: 36330412 PMCID: PMC9622500 DOI: 10.21037/atm-22-608] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 07/04/2022] [Indexed: 01/21/2023]
Abstract
Background The high-frequency electrotome (ES), which is widely used in surgical procedures, generates surgical smoke that is potentially hazardous to operating personnel. Previous research shows that the PlasmaBlade (PB) may be able to overcome this problem. The present study set out to analyze potentially hazardous surgical smoke generated during electrosurgery by the ES, the PB, and. a new surgical system that applies low-temperature plasma, the NTS-100. Methods In vitro and in vivo healthy porcine models were used to compare volatile organic compounds (VOCs) and particulate matter (PM) in smoke generated by the NTS-100, the PB, and the conventional ES when cutting liver, muscle, and skin and subcutaneous tissues. The detected indexes included the VOCs in surgical smoke, the concentration and percentage of each part, the PM2.5 concentration, the mass of particles, and the diameter distribution of particles. Results The smoke generated by the NTS-100 contained fewer hazardous components than that generated by the ES (P<0.05) and a comparable amount to that generated by the PB (P>0.05). The PM2.5 concentration and mass of particles in the smoke generated by the NTS-100 were lower than those with the ES (P<0.05 and P<0.01, respectively) and similar to those with the PB (P>0.05). The NTS-100 generated larger particles than did the ES and the PB (P<0.05). Conclusions Surgical smoke contains harmful VOCs and PM, but the NTS-100 generated less hazardous surgical smoke than did the conventional ES and performed comparably to the PB. Therefore, using the NTS-100 may reduce the potential hazard of surgical smoke to operating room personnel.
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Affiliation(s)
- Boya Zhang
- School of Medicine, Nankai University, Tianjin, China;,Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Qingyu Guan
- School of Medicine, Nankai University, Tianjin, China;,Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Yunsheng Zhu
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Jingjin Zhu
- School of Medicine, Nankai University, Tianjin, China;,Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Xiaohan Liu
- School of Medicine, Nankai University, Tianjin, China;,Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Shuaiqi Li
- School of Medicine, Nankai University, Tianjin, China;,Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Rungong Yang
- Department of Tissue Repair and Regeneration, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Xiru Li
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
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Guan Q, Liu Z, Shao W, Tian J, Luo H, Ni F, Shan Y. Probabilistic risk assessment of heavy metals in urban farmland soils of a typical oasis city in northwest China. Sci Total Environ 2022; 833:155096. [PMID: 35398134 DOI: 10.1016/j.scitotenv.2022.155096] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [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: 01/26/2022] [Revised: 03/30/2022] [Accepted: 04/03/2022] [Indexed: 06/14/2023]
Abstract
Previous studies lacked quantitative evaluation studies of the probability of ecology and human health risks from soil heavy metals. This study assessed heavy metal risk level by collecting topsoil samples from a typical oasis city (Wuwei) in northwest China and then quantitatively evaluating the ecological risk from heavy metals by incorporating the uncertainty of health risk model parameters into the risk assessment. This study found that anthropogenic activities have influenced the accumulation of heavy metals in the study area and that the risk of contamination of soil heavy metals was characterized as light to moderate contamination and low ecological risk. On this basis, the species sensitivity distribution curves of heavy metals were constructed using species acute toxicity data, the predicted no effect concentrations of heavy metals were derived, and a probabilistic ecological risk evaluation was conducted. The results show that the current soil environmental quality standards in China are not effective in protecting species diversity. In addition, the probability of ecological risk for Cr, Ni and As in the study area was 63.3%, 23.8% and 7.1%, however, traditional pollution assessment methods underestimate the hazard of Cr. Monte Carlo simulations have shown that the probability of the carcinogenic risk of Cr (adults: 79.4%; children: 94.5%) and As (adults: 78.9%; children: 94.0%) is high, the probability of the total carcinogenic risk exceeding 1E-06 is 99.0%, the probability of the non-carcinogenic risk is low, and the slope factor and reference dose can significantly affect the evaluation of human health risks.
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Affiliation(s)
- Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Zhan Liu
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jing Tian
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Fei Ni
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yuxin Shan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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Hong C, Zheng Y, Geng R, Hu H, Zhong Y, Guan Q, Zhang Y, Li X. Clinicopathological features and prognosis of bilateral breast cancer: a single-center cohort study based on Chinese data. Ann Transl Med 2022; 10:742. [PMID: 35957718 PMCID: PMC9358492 DOI: 10.21037/atm-21-5400] [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] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 03/17/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Chenyan Hong
- School of Medicine, Naikai University, Tianjin, China
| | - Yiqiong Zheng
- Department of General Surgery, the First Medical Center of the People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Rui Geng
- Department of General Surgery, the First Medical Center of the People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Huayu Hu
- School of Medicine, Naikai University, Tianjin, China
| | - Yuting Zhong
- Department of General Surgery, the First Medical Center of the People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Qingyu Guan
- School of Medicine, Naikai University, Tianjin, China
| | - Yanjun Zhang
- Department of General Surgery, the First Medical Center of the People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Xiru Li
- Department of General Surgery, the First Medical Center of the People’s Liberation Army (PLA) General Hospital, Beijing, China
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11
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Shao W, Wang Q, Guan Q, Luo H, Ma Y, Zhang J. Distribution of soil available nutrients and their response to environmental factors based on path analysis model in arid and semi-arid area of northwest China. Sci Total Environ 2022; 827:154254. [PMID: 35248639 DOI: 10.1016/j.scitotenv.2022.154254] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 10/06/2021] [Revised: 02/26/2022] [Accepted: 02/26/2022] [Indexed: 06/14/2023]
Abstract
The study on the distribution of soil available nutrients and their response to the natural environment can provide valuable data and theoretical guidance for supporting human agricultural activities, especially in arid and semi-arid area where the ecological environment is extremely fragile. Based on the soil sampling and survey data set, this study established the path analysis model of SANs (soil available nutrients, including ammonium nitrogen (AN), available phosphorus (AP) and available potassium (AK)) with topography, climate and vegetation in order to explore how environmental factors interact to affect the content of SANs. Then, we combined Pearson correlation analysis and statistical analysis to explore the distribution of SANs under different environmental conditions and the response of vegetation growth to climate changes, in order to further reveal the availability of soil nutrients. The results showed that vegetation was the most important direct factor affecting AN and AP, and AK was the most sensitive to climate changes. The indirect effects of topography and climate on SANs were much greater than their direct effects. Elevation largely predicted the change of climate environment, and the regional climate directly controlled the growth of vegetation. These indirect effects strengthened the connection between topography as well as climate factors and SANs. It is worth noting that the response of vegetation to temperature and precipitation had time lag, which would have a certain impact on the content of SANs response to the environmental changes. This study is of great significance for improved understanding of soil nutrients supply and how ecosystems respond to soil nutrients availability in arid and semi-arid area.
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Affiliation(s)
- Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingzheng Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yunrui Ma
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jun Zhang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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12
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Ji Y, Zhong Y, Zheng Y, Hu H, Min N, Wei Y, Geng R, Hong C, Guan Q, Li J, Wang Z, Zhang Y, Li X. Surgical management and prognosis of phyllodes tumors of the breast. Gland Surg 2022; 11:981-991. [PMID: 35800748 PMCID: PMC9253188 DOI: 10.21037/gs-21-877] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 04/15/2022] [Indexed: 02/28/2024]
Abstract
BACKGROUND Regardless of histological grade, phyllodes tumors (PTs) exhibit the potential of local recurrence. The National Comprehensive Cancer Network (NCCN) recommends wide local excision (WLE) with a 1 cm margin or more for borderline/malignant PTs but excisional biopsy for benign PTs. However, the treatment of benign PTs remains controversial and the clinicopathologic risk factors for the local recurrence is still unclear. METHODS We retrospectively analyzed 238 patients with PTs who underwent surgery at the Chinese PLA General Hospital from January 1, 2006 and April 30, 2020. We stratified our analysis according to histologic grade and explored the clinicopathologic factors to influence local recurrence (LR), including age, histologic grade, history of fibroadenoma, type of surgery [vacuum-assisted biopsy system (VABS), local excision (LE), wide local excision (WLE) and mastectomy]. RESULTS All 238 cases were categorized as benign (171, 71.8%), borderline (38, 16.0%), or malignant (29, 12.2%). The median follow-up was 50.2 months. In multivariate analysis, histologic grade (P<0.01) and history of fibroadenoma (P<0.01) were independent prognostic factors for LR. No difference existed in the recurrence rate of BPT treated with different surgical procedures (P=0.397), whereas a higher recurrence rate was found in VABS and LE subgroups than in WLE and mastectomy subgroups for borderline/malignant tumors (P<0.01). CONCLUSIONS No association found between surgical modalities and LR rate for BPT. We suggested a "wait-and-watch" policy for patients with unexpected benign subtypes, instead of unnecessary re-excision. In addition, VABS or LE can be treated for BPT with small mass, whereas WLE or even mastectomy should be conducted for borderline/malignant PTs with large mass.
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Affiliation(s)
- Yashuang Ji
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Yuting Zhong
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Yiqiong Zheng
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Huayu Hu
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Ningning Min
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Yufan Wei
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Rui Geng
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Chenyan Hong
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Qingyu Guan
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Jie Li
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Zhili Wang
- Department of Ultrasound, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Yanjun Zhang
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Xiru Li
- Department of General Surgery, Chinese People’s Liberation Army General Hospital, Beijing, China
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13
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Gan W, Guan Q, Hu X, Zeng X, Shao D, Xu L, Xiao W, Mao H, Chen W. The association between platelet-lymphocyte ratio and the risk of all-cause mortality in chronic kidney disease: a systematic review and meta-analysis. Int Urol Nephrol 2022; 54:2959-2967. [PMID: 35581444 DOI: 10.1007/s11255-022-03234-0] [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] [Received: 12/04/2021] [Accepted: 04/09/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Chronic kidney disease (CKD) patients have high levels of inflammatory mediators. These inflammatory mediators contribute to the increased risk of cardiovascular events and all-cause mortality. Platelet-lymphocyte ratio (PLR) has recently been recognized as a novel inflammatory marker and has been shown to be associated with the prognosis in CKD patients. However, the quality of these studies varies and their results are controversial. The purpose of this meta-analysis was to investigate the relationship between PLR and all-cause mortality in CKD patients. METHODS A systematic literature search of PubMed, EMBASE, CENTRAL and ISI Web of Science was conducted. The databases were searched from their inception dates up to the latest issue (31 October 2021). Two reviewers independently searched the databases and screened studies. Data were extracted using a standardized collection form. Meta-analysis was performed to compare PLR values between CKD and non-CKD patients, and to investigate the association between PLR and all-cause mortality in CKD patients. This meta-analysis is reported in adherence to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). RESULTS A total of 11 studies involving 4244 participants were selected. The pooled data indicated that PLR values were significantly higher in CKD patients than non-CKD controls (weighted mean difference = 21.6, 95% CI 17.39-25.81, p < 0.01), and PLR is associated with an increased risk of all-cause mortality in CKD patients (hazard ratio = 2.49, 95% CI 1.78-3.49, p < 0.01). CONCLUSIONS Patients with CKD have higher PLR values compared to non-CKD patients. Meanwhile, PLR values were highly associated with all-cause mortality in CKD patients. PLR is a valid predictor as a clinically accessible indicator for patients with CKD.
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Affiliation(s)
- Wenyuan Gan
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China
| | - Qingyu Guan
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China.,Medical School, Jianghan University, Wuhan, 430056, Hubei, China
| | - Xiaosong Hu
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China
| | - Xingruo Zeng
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China
| | - Danni Shao
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China
| | - Li Xu
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China
| | - Wei Xiao
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China
| | - Huihui Mao
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China
| | - Wenli Chen
- Department of Nephrology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei, China.
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14
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Xiao X, Wang Q, Guan Q, Shao W, Luo H, Shan Y, Mi J. Assessing the sustainability of ecosystems over fourteen years of cultivation in Longnan City of China based on emergy analysis method. J Environ Manage 2022; 307:114513. [PMID: 35091244 DOI: 10.1016/j.jenvman.2022.114513] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
Currently, the contradiction between the limited resources of China's cultivated ecosystems and population growth is becoming increasingly evident, and the negative impacts on the environment and human activities need to be curbed. Therefore, it is crucial to quantify the sustainability of cultivated ecosystems and determine these driving factors that affect their development. This study used the emergy method to quantify the input/output flow and sustainable development of the cultivated land ecosystem in Longnan City, combined with the logarithmic mean divisia index decomposition analysis (LMDI) method to evaluate the driving factors of sustainable development in the region. The results demonstrate that from 2004 to 2017, the total emergy input and output of Longnan City showed an upward trend, and non-renewable resources (N) were always in a dominant state in the total emergy (T) input, and their proportion rose from 59.69% to 66.92%. The emergy sustainability index (ESI) is less than 1, and the environmental pressure of the system is relatively higher. Comprehensive emergy production ratio (EPR), emergy investment ratio (EIR), the renewable fraction (R%), emergy yield ratio (EYR) and environmental load ratio (ELR), showed that the agricultural ecological economy in Longnan still has great development potential, and clean energy should be developed as far as possible to replace fossil fuels in future planning. LMDI results showed that the intensity factor ΔY'A is the main driving factor for the positive development of ESI. The government's ecological protection requirements can reduce waste emissions through reasonable farming system and advocating the use of organic fertilizer, so as to achieve the purpose of improving crop yield. Vigorous development of green ecological agricultural production patterns can improve the sustainability of arable ecosystems. This study can provide a theoretical basis for the sustainable development of cultivated ecosystems and the formulation of related agricultural production measures.
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Affiliation(s)
- Xiong Xiao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qingzheng Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yuxin Shan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Jimin Mi
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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15
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Wei Y, Yu Y, Ji Y, Zhong Y, Min N, Hu H, Guan Q, Li X. Surgical management in phyllodes tumors of the breast: a systematic review and meta-analysis. Gland Surg 2022; 11:513-523. [PMID: 35402210 PMCID: PMC8984980 DOI: 10.21037/gs-21-789] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 11/22/2021] [Accepted: 01/24/2022] [Indexed: 03/20/2024]
Abstract
BACKGROUND Information is still controversial in the studies regarding the current optimal surgical management of phyllodes tumors (PTs) of the breast. Local recurrence (LR) may occur with an upgraded in the pathological grade, influencing the prognosis of patients with PT. This systematic review and meta-analysis aimed to investigate the association of LR risk with margin status and margin width which could have significant implications on the surgical management of PT. METHODS Independent and comprehensive searches were performed by two authors through five databases including PubMed, Medline, Embase, ScienceDirect and Cochrane Library from January 1990 to October 2021. Studies investigating the association between margin width, margin status and LR rates were considered for inclusion. Study quality was evaluated using the Newcastle-Ottawa Scale (NOS). Meta-analysis was performed using RevMan5.3 software, and statistical heterogeneity was assessed using the Chi-square test and quantified using the I2 statistic. Visual inspection of funnel plots was used to judge publication bias. RESULTS A total of 34 articles were included in this article, all of which with NOS scores above 5. Regardless of the PT grade, positive margin significantly increased the risk of LR [odds ratio (OR) 3.64, 95% confidence interval (CI): 2.60-5.12]. No significant difference was found in the risk of LR between the margins <1 and ≥1 cm (OR 1.39, 95% CI: 0.67-2.92). For benign and borderline PTs, there were no significant differences of the LR risk between breast-conserving surgery (BCS) and mastectomy (benign OR 0.68, 95% CI: 0.12-3.78; borderline OR 1.14, 95% CI: 0.29-4.51). While the LR risk was significantly increased by BCS for malignant PT (OR 2.77, 95% CI: 1.33-5.74). DISCUSSION Different surgical management strategies should be considered for different PT grades. BCS was a feasible option and margins <1 cm was not significantly associated with LR risk for all grade of PT. After BCS, benign PT with positive margin could adopt the "wait and watch" strategy with regular follow-up, while borderline and malignant PTs were expected to underwent re-excision to ensure negative margins. More studies are still needed to clarify and update the existing conclusions and improve the prognosis of PT patients.
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Affiliation(s)
- Yufan Wei
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yanying Yu
- Eight-Year MD Program, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Yashuang Ji
- Department of Galactophore Surgery, Tongzhou District Hospital of Integrated TCM & Western Medicine, Beijing, China
| | - Yuting Zhong
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
- Medical School of Chinese PLA, Beijing, China
| | - Ningning Min
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Huayu Hu
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Qingyu Guan
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiru Li
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
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16
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Luo H, Wang Q, Guan Q, Ma Y, Ni F, Yang E, Zhang J. Heavy metal pollution levels, source apportionment and risk assessment in dust storms in key cities in Northwest China. J Hazard Mater 2022; 422:126878. [PMID: 34418825 DOI: 10.1016/j.jhazmat.2021.126878] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [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: 07/02/2021] [Revised: 07/28/2021] [Accepted: 08/08/2021] [Indexed: 06/13/2023]
Abstract
In this study, the potential hazards of heavy metals in dust storms were investigated by collecting dust storm samples, measuring their heavy metal concentrations, and using index evaluation, spatial analysis, positive matrix factorization (PMF) model and risk assessment model. Heavy metals in dust storms were contaminated by anthropogenic sources leading to their concentrations being higher than the background values. The enrichment factors and geoaccumulation indices showed that the heavy metals came from both natural and anthropogenic sources, Cu, Ni, Zn and Pb are strongly influenced by anthropogenic sources. Heavy metals in dust storms were divided into four sources: Cu and Ni were attributed to industrial sources mainly from local mining and metal processing; Cr was mainly contributed by industrial sources related to industrial production such as coal combustion; Pb and Zn were mainly contributed by transportation sources; and Ti, V, Mn, Fe, and As were from natural and agricultural sources. The level of comprehensive ecological risk of heavy metals in dust storms were low, but there were moderate and above risks at individual sites. Both adults and children had the highest carcinogenic and non-carcinogenic risks from the ingestion route, and the risk for children was higher than that for adults.
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Affiliation(s)
- Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingzheng Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Yunrui Ma
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Fei Ni
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Enqi Yang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jun Zhang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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17
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Wang N, Guan Q, Sun Y, Wang B, Ma Y, Shao W, Li H. Predicting the spatial pollution of soil heavy metals by using the distance determination coefficient method. Sci Total Environ 2021; 799:149452. [PMID: 34365267 DOI: 10.1016/j.scitotenv.2021.149452] [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] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/17/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Identifying the spatial distribution of heavy metal concentrations is a prerequisite for soil contamination assessment and control. In this study, soil surface samples (0-20 cm) were collected in Wuwei, China, and heavy metal concentrations were determined. The LUR (land use regression) model was used to simulate the spatial distribution of seven heavy metal concentrations in the study area, considering various factors, and the results were compared with ordinary kriging (OK) interpolation. Based on A Distance Decay REgression Selection Strategy (ADDRESS), the distance-coefficient of determination (DCD) was proposed to more easily and accurately select the optimal buffer of the relevant covariates. The simulation results showed that the adj R2 values of the LUR models of the remaining heavy metals were all above 0.6, and the empirical comparison showed that LUR was better than OK. The variables that showed a more significant impact on soil heavy metal concentrations in the research area included road length, normalized difference vegetation index (NDVI), and soil sample nutrients around the sample site. In the research area, the concentration of heavy metals in the soil was greatly affected by motorway, primary roads, and secondary roads in the range of 1.2-2.1 km (r > 0.5), while building and As, Cu, Pb and Zn in the range of 3.6-4.8 km had a significant correlation (r > 0.5). This study provides scientific evidence and basic information for the prevention and control of heavy metal contamination and human health risk assessment management in arid zones.
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Affiliation(s)
- Ning Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Yunfan Sun
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Bingrui Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yunrui Ma
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Huichun Li
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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18
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Hu H, Guan Q, Zheng Y, Zhong Y, Min N, Wei Y, Geng R, Hong C, Li J, Zhang Y, Li X. Inverted-T pattern reduction mammoplasty in bilateral breast ptosis: cosmetic and oncological outcomes. Gland Surg 2021; 10:2925-2934. [PMID: 34804880 DOI: 10.21037/gs-21-561] [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] [Received: 08/17/2021] [Accepted: 09/17/2021] [Indexed: 11/06/2022]
Abstract
Background Breast ptosis is directly caused by Cooper's ligament laxity, with the decline of nipple areola complex (NAC) and mammary parenchyma. Breast cancer with ptosis is always a knotty problem that can hardly be repaired by classic breast conservation surgery (BCS) ending up with a pleasing appearance. We analyzed our 12 years' experience of performing inverted-T pattern techniques to treat bilateral breast ptosis, with or without breast cancer. Methods One hundred forty-eight breasts in 74 patients undergoing inverted-T pattern reduction mammoplasty were included in this study. Information about patients' clinical and surgical characteristics, complications, NAC sensitivity, cosmetic and oncological outcomes were collected and retrospectively analyzed. Results In the cohort of 57 patients with pure breast ptosis, the mean body mass index (BMI) was 25.2 kg/m2, and the mean weight of resected tissue from the left and right breast reductions were 744.9 and 756.7 g. In the cohort of 17 patients diagnosed as breast cancer with ptosis, the mean BMI was 25.1 kg/m2, and the mean weight of resected tissue were 504.1 g for left and 535.6 g for right side. The majority of repairs were performed for tumors located in the upper outer (58.8%), mostly with inferior or superomedial pedicles (90%). All the upper inner tumors were repaired with inferior pedicles. Minor complications such as seroma (8.1%), NAC epidermolysis (8.1%), delayed wound healing (4.1%) were detected postoperatively. Partial NAC necrosis occurred in one patient (1.4%). 82.4% of all the patients rated "very satisfied" or "satisfied" as the final cosmetic outcomes. NAC sensitivity was "very high" and "high" in 82.4% patients. No local occurrence, distant metastasis and mortality occurred in tumor patients. Conclusions The inverted-T pattern reduction mammoplasty is a reliable technique to treat bilateral breast ptosis with a low complication rate. For cases with breast cancer, this technique can achieve both satisfying cosmetic outcomes and oncological safety.
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Affiliation(s)
- Huayu Hu
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Qingyu Guan
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yiqiong Zheng
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yuting Zhong
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Ningning Min
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yufan Wei
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Rui Geng
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Chenyan Hong
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Jie Li
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yanjun Zhang
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Xiru Li
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
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19
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Zhong Y, Wei Y, Min N, Guan Q, Zhao J, Zhu J, Hu H, Geng R, Hong C, Ji Y, Li J, Zheng Y, Zhang Y, Li X. Comparative healing of swine skin following incisions with different surgical devices. Ann Transl Med 2021; 9:1514. [PMID: 34790720 PMCID: PMC8576679 DOI: 10.21037/atm-21-3090] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 08/05/2021] [Indexed: 11/06/2022]
Abstract
Background Electrosurgical technology is widely used in surgical dissection and hemostasis, but the generated heat creates thermal injury to adjacent tissues and delays wound healing. The plasma blade (PB) applies pulsed radiofrequency (RF) to generate electrical plasma along the edge of a thin, flat, insulated electrode, minimizing collateral tissue damage. This study aimed to evaluate wound healing in swine skin following incision with a new surgical system that applies low-temperature plasma (NTS-100), a foreign PB, conventional electrosurgery (ES), and a scalpel blade. Methods In vitro porcine skin and an in vivo porcine skin model were used in this study. Full-thickness skin incisions 3 cm in length were made on the dorsum of each animal for each of the 5 surgical procedures at 0, 21, 28, 35, and 42 days. The timing of the surgical procedures allowed for wound-healing data points at 1, 2, 3, and 6 weeks accordingly. Local operating temperature and blood loss were quantified. Wounds were harvested at designated time points, tested for wound tensile strength, and examined histologically for scar formation and tissue damage. Results Local operating temperature was reduced significantly with NTS-100 (cut mode 83.12±23.55 °C; coagulation mode 90.07±10.6 °C) compared with PB (cut mode 94.46±11.48 °C; coagulation mode 100.23±6.58 °C, P<0.05) and ES (cut mode 208.99±34.33 °C, P<0.01; coagulation mode 233.37±28.69 °C, P<0.01) in vitro. Acute thermal damage from NTS-100 was significantly less than ES incisions (cut mode: 247.345±42.274 versus 495.295±103.525 µm, P<0.01; coagulation mode: 351.419±127.948 versus 584.516±31.708 µm, P<0.05). Bleeding, histological scoring of injury, and wound strength were equivalent for the NTS-100 and PB incisions. Conclusions The local operating temperature of NTS-100 was lower than PB, and NTS-100 had similarly reliable safety and efficacy.
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Affiliation(s)
- Yuting Zhong
- Medical School of Chinese PLA, Beijing, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yufan Wei
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Ningning Min
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Qingyu Guan
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Jin Zhao
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Junyong Zhu
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Huayu Hu
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Rui Geng
- Medical School of Chinese PLA, Beijing, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Chenyan Hong
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Yashuang Ji
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Jie Li
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yiqiong Zheng
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yanjun Zhang
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Xiru Li
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
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20
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Wei Y, Ding L, Song X, Tian X, Min N, Guan Q, Li X, Liu M. Tall cell carcinoma with reversed polarity: case report with gene sequencing and literature review. Gland Surg 2021; 10:3147-3154. [PMID: 34926230 PMCID: PMC8637072 DOI: 10.21037/gs-21-591] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 10/15/2021] [Indexed: 09/29/2023]
Abstract
Tall cell carcinoma with reversed polarity (TCCRP) is an extremely rare type of invasive breast cancer with only 17 literatures and 75 cases reported. Knowledge on TCCRP is still scanty. The present study reported 2 cases of TCCRP, analyzed their clinicopathological characteristics, and used whole exome sequencing to perform genetic testing. Both two cases were proved to have typical clinicopathological manifestations (solid and papillary architectures lined by tall columnar cells with nuclei displaying "reverse polarization") and hotspot mutations (IDH2 and PIK3CA mutations) of TCCRP. Furthermore, positive expression of TTF-1 was found in a small number of tumor cells nuclei and normal ductal epithelial cells, while the negative rate of TTF-1 in previous case reports was 100%. Attention should be paid in core needle biopsy to avoid misdiagnosis. In addition, this article also reviewed all previous cases and demonstrated that the positive expression of calretinin might have an indicative significance for TCCRP, which could be used as one of the auxiliary diagnosis tools. The diagnosis of TCCRP requires comprehensive analysis of clinical pathology and genetic testing results. There is no clear treatment standard for TCCRP currently, further research should be reported to characterize and deeply investigate the diagnosis and treatment criteria of TCCRP.
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Affiliation(s)
- Yufan Wei
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Liming Ding
- Department of Pathology, Yi’an District People’s Hospital, Tongling, China
| | - Xin Song
- Department of Pathology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xia Tian
- Department of Pathology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Ningning Min
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Qingyu Guan
- School of Medicine, Nankai University, Tianjin, China
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiru Li
- Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Mei Liu
- Department of Pathology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
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21
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Wang X, Hong Y, Li Y, Guan Q, Zhou S, Qian Z, Qiu L, Li L, Liu X, Fu K, Zhang H. COSTIMULATORY MOLECULE OX40, TUMOR IMMUNE MICROENVIRONMENT AND RESPONSE TO IMMUNOCHEMOTHERAPY IN DIFFUSE LARGE B‐CELL LYMPHOMA: AN INTEGRATIVE ANALYSIS WITH MOLECULAR CHARACTERISTICS. Hematol Oncol 2021. [DOI: 10.1002/hon.9_2881] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- X Wang
- Department of Lymphoma Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center of Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin’s Clinical Research Center for Cancer the Sino‐US Center for Lymphoma and Leukemia Research Tianjin China
| | - Y Hong
- Department of Lymphoma Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center of Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin’s Clinical Research Center for Cancer the Sino‐US Center for Lymphoma and Leukemia Research Tianjin China
| | - Y Li
- Department of Lymphoma Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center of Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin’s Clinical Research Center for Cancer the Sino‐US Center for Lymphoma and Leukemia Research Tianjin China
| | - Q Guan
- Department of Lymphoma Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center of Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin’s Clinical Research Center for Cancer the Sino‐US Center for Lymphoma and Leukemia Research Tianjin China
| | - S Zhou
- Department of Lymphoma Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center of Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin’s Clinical Research Center for Cancer the Sino‐US Center for Lymphoma and Leukemia Research Tianjin China
| | - Z Qian
- Department of Lymphoma Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center of Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin’s Clinical Research Center for Cancer the Sino‐US Center for Lymphoma and Leukemia Research Tianjin China
| | - L Qiu
- Department of Lymphoma Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center of Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin’s Clinical Research Center for Cancer the Sino‐US Center for Lymphoma and Leukemia Research Tianjin China
| | - L Li
- Department of Lymphoma Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center of Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin’s Clinical Research Center for Cancer the Sino‐US Center for Lymphoma and Leukemia Research Tianjin China
| | - X Liu
- Department of Lymphoma Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center of Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin’s Clinical Research Center for Cancer the Sino‐US Center for Lymphoma and Leukemia Research Tianjin China
| | - K Fu
- Department of Lymphoma Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center of Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin’s Clinical Research Center for Cancer the Sino‐US Center for Lymphoma and Leukemia Research Tianjin China
| | - H Zhang
- Department of Lymphoma Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center of Cancer Key Laboratory of Cancer Prevention and Therapy Tianjin’s Clinical Research Center for Cancer the Sino‐US Center for Lymphoma and Leukemia Research Tianjin China
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22
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Liu Z, Guan Q, Lin J, Yang L, Luo H, Wang N. A new buffer selection strategy for land use regression model of PM 2.5 in Xi'an, China. Environ Sci Pollut Res Int 2021; 28:21245-21255. [PMID: 33411307 DOI: 10.1007/s11356-020-11770-4] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
In order to calculate the spatial distribution of high-resolution air-pollutant levels, the land use regression (LUR) model can be an effective method due to the comprehensive consideration of various factors. Traditional LUR models mostly use predefined buffers, which have the disadvantage of not matching high-resolution data well. In order to get a better-fitting model, a few researches have proposed new buffer selection methods. To solve this problem, we propose a new optimal buffer selection method based on the dichotomy to improve the correlation between predicted variables and pollutant concentration. For some socioeconomic data with high spatial resolution that cannot be obtained, for example, building data is used instead of population density data. Compared with the model with the predefined buffers, the model with our buffer selection strategy explained additional 5% variability in measured concentrations, in terms of the R2 of the final model. Our model explained 98% of the samples, and the deviation (1.78%) and root mean square error (5.17 μg/m) were small. It means that the LUR model with our buffer selection strategy can be used as a fit method to better describe spatial variability in atmospheric pollutant levels, which will be conducive to epidemiological research and urban environmental planning.
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Affiliation(s)
- Zeyu Liu
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Jinkuo Lin
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Liqin Yang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Ning Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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23
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Lu L, Chang M, Han X, Wang Q, Wang J, Yang H, Guan Q, Dai S. Beneficial effects of endophytic Pantoea ananatis with ability to promote rice growth under saline stress. J Appl Microbiol 2021; 131:1919-1931. [PMID: 33754394 DOI: 10.1111/jam.15082] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 01/27/2021] [Revised: 03/11/2021] [Accepted: 03/19/2021] [Indexed: 11/28/2022]
Abstract
AIMS Soil salinization severely inhibits plant growth, leading to a low crop yield. The aim of the current study was to isolate endophytic bacteria with the ability to promote rice growth under saline conditions. METHODS AND RESULTS We isolated eight salt-tolerant endophytic bacteria from rice roots. An isolated strain D1 was selected due to its ability to stimulate rice seed germination in the presence of NaCl, which was identified as Pantoea ananatis D1. It exhibited multiple plant growth-promoting traits including phosphate solubilization, production of indole-3-acetic acid, 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase and siderophore. Inoculation of P. ananatis D1 obviously enhanced the rice root and shoot growth under normal and saline conditions. It also significantly increased the contents of chlorophyll, total soluble protein, and proline in salt-stressed rice seedlings. Moreover P. ananatis D1 could ameliorate the oxidative stress in rice induced by NaCl and Na2 CO3 treatment. The malondialdehyde content and various antioxidant enzyme activities were decreased by P. ananatis D1 inoculation in salt-affected rice. In addition, P. ananatis D1 showed a positive potential for limiting the Na+ accumulation and enhancing the K+ uptake, leading to an increase of 1·2-1·7 fold in K+ /Na+ ratio under saline environment. CONCLUSIONS Pantoea ananatis D1 has the ability to improve the salt tolerance of rice seedlings. SIGNIFICANCE AND IMPACT OF THE STUDY The application of plant growth-promoting bacteria (PGPB) is an eco-friendly strategy to improve plant tolerance towards abiotic stresses. We demonstrated that P. ananatis D1 could be used as an effective halotolerant PGPB to enhance rice growth in different salt-affected soils.
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Affiliation(s)
- L Lu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China.,College of Life Sciences, Northeast Forestry University, Harbin, China
| | - M Chang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China.,College of Life Sciences, Northeast Forestry University, Harbin, China
| | - X Han
- College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Q Wang
- College of Life Sciences, Northeast Forestry University, Harbin, China
| | - J Wang
- College of Life Sciences, Northeast Forestry University, Harbin, China
| | - H Yang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China.,College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Q Guan
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China.,College of Life Sciences, Northeast Forestry University, Harbin, China
| | - S Dai
- Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai, China
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24
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Hu H, Zhu J, Zhong Y, Geng R, Ji Y, Guan Q, Hong C, Wei Y, Min N, Qi A, Zhang Y, Li X. PIK3CA mutation confers resistance to chemotherapy in triple-negative breast cancer by inhibiting apoptosis and activating the PI3K/AKT/mTOR signaling pathway. Ann Transl Med 2021; 9:410. [PMID: 33842631 PMCID: PMC8033310 DOI: 10.21037/atm-21-698] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background Triple-negative breast cancer (TNBC) is a malignant subtype of breast cancer, the main treatments for which are chemotherapy and surgery. PIK3CA is an oncogene that encodes the p110α subunit of class IA PI3K to regulate cell proliferation and apoptosis. Some reports have observed neoadjuvant chemotherapy (NAC) to have poor pathological complete response (pCR) rates in TNBC with PIK3CA mutation. This study aimed to explore the mechanism of how mutant PIK3CA alters chemotherapeutic susceptibility in TNBC. Methods TNBC cell lines (MDA-MB-231 and MDA-MB-468) with PIK3CA gene mutations (E545K and H1047R regions) and overexpression were established by transfection. NOD/SCID mice were used for in vivo experiments. Epirubicin was used as the chemotherapeutic agent. Cell viability, cell cycle, apoptosis, and Transwell assays were conducted for phenotype analysis. Western blot, quantitative reverse transcription-polymerase chain reaction, and immunohistochemistry were used to detect gene and protein expression levels. A clinical analysis of 50 patients with TNBC was also performed. Results Cell viability and Transwell assays showed that PIK3CA mutation promoted TNBC cell growth and conferred an enhanced migratory phenotype. Cell cycle and apoptosis assays showed that PIK3CA mutation moderately improved the proliferation ability of TNBC cells and remarkably inhibited their apoptosis. After epirubicin therapy, the proportion of early apoptotic cells decreased among cells with PIK3CA mutation. Further, xenograft tumors grew faster in NOD/SCID mice injected with mutated cell lines than in control group, suggesting that PIK3CA mutation caused chemotherapy resistance. Importantly, western blot and immunohistochemical analysis showed that cells and mouse tumors in the PIK3CA mutation groups exhibited different expression levels of apoptosis-related markers (Xiap, Bcl-2, and Caspase 3) and proteins associated with the PI3K/AKT/mTOR pathway (p110α, AKT, p-AKT, mTOR, p-mTOR, p-4E-BP1, p-p70S6K, and Pten). Moreover, prognostic analysis of 50 patients with TNBC indicated that PIK3CA mutation might be linked with relapse and death. Conclusions PIK3CA mutation confers resistance to chemotherapy in TNBC by inhibiting apoptosis and activating the PI3K/AKT/mTOR signaling pathway.
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Affiliation(s)
- Huayu Hu
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Junyong Zhu
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Yuting Zhong
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Rui Geng
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China.,Medical School of Chinese PLA, Beijing, China
| | - Yashuang Ji
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Qingyu Guan
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Chenyan Hong
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yufan Wei
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Ningning Min
- School of Medicine, Nankai University, Tianjin, China.,Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Aiying Qi
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yanjun Zhang
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Xiru Li
- Department of General Surgery, Chinese People's Liberation Army General Hospital, Beijing, China
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25
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Guan Q, Ome MKH, Bersano TM, Mossman S, Engels P, Blume D. Nonexponential Tunneling due to Mean-Field-Induced Swallowtails. Phys Rev Lett 2020; 125:213401. [PMID: 33274984 DOI: 10.1103/physrevlett.125.213401] [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] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/27/2020] [Indexed: 06/12/2023]
Abstract
Typically, energy levels change without bifurcating in response to a change of a control parameter. Bifurcations can lead to loops or swallowtails in the energy spectrum. The simplest quantum Hamiltonian that supports swallowtails is a nonlinear 2×2 Hamiltonian with nonzero off-diagonal elements and diagonal elements that depend on the population difference of the two states. This work implements such a Hamiltonian experimentally using ultracold atoms in a moving one-dimensional optical lattice. Self-trapping and nonexponential tunneling probabilities, a hallmark signature of band structures that support swallowtails, are observed. The good agreement between theory and experiment validates the optical lattice system as a powerful platform to study, e.g., Josephson junction physics and superfluidity in ring-shaped geometries.
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Affiliation(s)
- Q Guan
- Homer L. Dodge Department of Physics and Astronomy, The University of Oklahoma, 440 W. Brooks Street, Norman, Oklahoma 73019, USA
- Center for Quantum Research and Technology, The University of Oklahoma, 440 W. Brooks Street, Norman, Oklahoma 73019, USA
| | - M K H Ome
- Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814, USA
| | - T M Bersano
- Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814, USA
| | - S Mossman
- Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814, USA
| | - P Engels
- Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814, USA
| | - D Blume
- Homer L. Dodge Department of Physics and Astronomy, The University of Oklahoma, 440 W. Brooks Street, Norman, Oklahoma 73019, USA
- Center for Quantum Research and Technology, The University of Oklahoma, 440 W. Brooks Street, Norman, Oklahoma 73019, USA
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26
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Luo H, Guan Q, Pan N, Wang Q, Li H, Lin J, Tan Z, Shao W. Using composite fingerprints to quantify the potential dust source contributions in northwest China. Sci Total Environ 2020; 742:140560. [PMID: 32721727 DOI: 10.1016/j.scitotenv.2020.140560] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 06/23/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
Dust storms have a profound impact on the atmospheric environment, global climate change, and human health, so it is of great importance to strengthen related research. The main areas of occurrence and frequency of dust storms in northwestern China were distinguished by measuring the concentration of geochemical elements in the topsoil and atmospheric dust samples, combined with the HYSPLIT backward trajectory model, MODIS true-color satellite images, and PM10 real-time monitoring data. On this basis, the composite fingerprints method was used to establish an end-member model between the concentration of dust storm samples and topsoil samples, and then to trace the sand and dust sources in northwest China and quantify their source contributions. The results showed that the main potential source areas causing sandstorms were located in the Kumtag Desert, Hexi area, and the Gobi Desert in the central and western parts of Inner Mongolia. Overall, the contributions from natural sources were greater than those from anthropogenic sources, especially at Alxa League. In addition to natural sources, anthropogenic dust sources contributed highly to dust storms, with a contribution rate of approximately 40% in cities. The main dust source in Zhangye City was from agriculture areas. The contribution of the potential dust sources in the west of the study area showed a decreasing trend from west to east because of the distance effect. Because of the influence of the prevailing westerly winds in the east, the sources of dust were relatively extensive. The Badain Jaran Desert and Tengger Desert were not the main dust sources in the study area because of artificial sand control measures and the low amounts of fine-grained components in sandy deserts. These methods and results are of great importance for sustainable development in northwest China.
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Affiliation(s)
- Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Ninghui Pan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingzheng Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Huichun Li
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jinkuo Lin
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Zhe Tan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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27
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Luo H, Guan Q, Lin J, Wang Q, Yang L, Tan Z, Wang N. Air pollution characteristics and human health risks in key cities of northwest China. J Environ Manage 2020; 269:110791. [PMID: 32561004 DOI: 10.1016/j.jenvman.2020.110791] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [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: 12/03/2019] [Revised: 04/17/2020] [Accepted: 05/15/2020] [Indexed: 06/11/2023]
Abstract
Air pollution events occur frequently in northwest China, which results in serious detrimental effects on human health. Therefore, it is essential to understand the air pollution characteristics and assess the risks to humans. In this study, we analyzed the pollution characteristics of criteria pollutants in six key cities in northwest China from 2015 to 2018. We used the air quality index (AQI), aggregate AQI (AAQI), and health-risk based AQI (HAQI) to assess the health risks and determine the proportion of people exposed to air pollution. Additionally, on this basis, the AirQ2.2.3 model was used to quantify the health effects of the pollutants. The results showed that PM10 pollution occurred mainly in spring and winter and was caused by frequent dust storms. PM2.5 pollution was caused mainly by anthropogenic activities (especially coal-fired heating in winter). Because of a series of government policies and pollutant reduction measures, PM2.5, SO2, NO2, and CO concentrations showed a downward trend during the study period (except for a small increase in the case of NO2 in some years.). However, O3 showed high concentrations due to the high intensity of solar radiation in summer and inadequate emission reduction measures. The air quality levels based on their classification were generally higher than the Chinese ambient air quality standard classified by the AQI index. We also found that the higher the AQI index was, the more serious the air pollution classified based on the AAQI and HAQI indices was. The HAQI index could better reflect the impact of pollutants on human health. Based on the HAQI index, 20% of the population in the study area was exposed to polluted air. The total mortality values attributable to PM10, PM2.5, SO2, O3, NO2, and CO, quantified by the AirQ2.2.3 model, were 3.00%, 1.02%, 1.00%, 4.22%, 1.57%, and 0.95% (Confidence Interval:95%), respectively; the attributable proportions of mortality for respiratory system and cardiovascular diseases were consistent with the change rule of total mortality, because the number of deaths attributable to the latter was greater than that for the former. According to the exposure reaction curves of pollutants, PM10 and PM2.5 still showed a large change at high concentrations. However, the tendencies of SO2, NO2, CO, and O3 were more obvious under low concentration exposure, which indicated that the expected mortality rate due to lower air pollution concentrations was much higher than the mortality due to high air pollution concentrations.
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Affiliation(s)
- Haiping Luo
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qingyu Guan
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Jinkuo Lin
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qingzheng Wang
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Liqin Yang
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Zhe Tan
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Ning Wang
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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Guan Q, Zhang Q, Zhang C, Liu Q, Ren QL. HOTTIP regulates progression of endometrial cancer via activating PI3K/AKT pathway. Eur Rev Med Pharmacol Sci 2020; 24:8241. [PMID: 32894519 DOI: 10.26355/eurrev_202008_22581] [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: 06/11/2023]
Abstract
The article "HOTTIP regulates progression of endometrial cancer via activating PI3K/AKT pathway, by Q. Guan, Q. Zhang, C. Zhang, Q. Liu, Q.-L. Ren, published in Eur Rev Med Pharmacol Sci 2018; 22(12): 3727-3733-DOI: 10.26355/eurrev_201806_15252-PMID: 29949146" has been withdrawn from the authors. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/15252.
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Affiliation(s)
- Q Guan
- Department of Gynecology, Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing, China
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Guan Q, Liu M, Zhuang YJ, Yuan Y, Wang SS, Li J, Chen Z, Yang XL, Tang ZR, Jia HJ, Ma JY, Wang XX, Tai PG, Li J, He Y. [Epidemiological investigation of a family clustering of COVID-19]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:629-633. [PMID: 32149484 DOI: 10.3760/cma.j.cn112338-20200223-00152] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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 epidemiological characteristics of a family clustering of COVID-19. Methods: Field epidemiological survey was conducted. Results: Case 1 of the long-term residents from Hubei province was the source of infection of this family clustering. There were 6 cases (from case 2 to case 7) infected in the whole incubation period. The incubation period was more than 14 days for 3 of the second-generation cases. Routes of transmission included respiratory droplets (from case 1 transmitted to case 6, from case 1 to her family members) and close contact (from case 1 to other cases in her family). All the age groups were generally susceptible, while elderly were easier to progress to critically ill. Besides respiratory symptoms, there were also gastrointestinal symptoms, of which diarrhea was the most common one. Conclusions: Family clustering had been an important part for COVID-19 cases.
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Affiliation(s)
- Q Guan
- The Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - M Liu
- Institute of Geriatrics, Second Medical Center, National Clinical Research Center for Geriatrics Diseases, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100083, China
| | - Y J Zhuang
- The Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - Y Yuan
- The Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - S S Wang
- Institute of Geriatrics, Second Medical Center, National Clinical Research Center for Geriatrics Diseases, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100083, China
| | - J Li
- The Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - Z Chen
- The Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - X L Yang
- The Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - Z R Tang
- The Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - H J Jia
- The Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - J Y Ma
- The Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - X X Wang
- The Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - P G Tai
- Medical Service Department, Chinese People's Liberation Army General Hospital, Beijing 100083, China
| | - J Li
- The Fifth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100039, China
| | - Y He
- Institute of Geriatrics, Second Medical Center, National Clinical Research Center for Geriatrics Diseases, Beijing Key Laboratory of Aging and Geriatrics, Chinese People's Liberation Army General Hospital, Beijing 100083, China
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Xu C, Guan Q, Lin J, Luo H, Yang L, Tan Z, Wang Q, Wang N, Tian J. Spatiotemporal variations and driving factors of dust storm events in northern China based on high-temporal-resolution analysis of meteorological data (1960-2007). Environ Pollut 2020; 260:114084. [PMID: 32041033 DOI: 10.1016/j.envpol.2020.114084] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/27/2020] [Accepted: 01/27/2020] [Indexed: 06/10/2023]
Abstract
Northern China is a significant source of dust source in Central Asia. Thus, high-resolution analysis of dust storms and comparison of dust sources in different regions of northern China are important to clarify the formation mechanism of East Asian dust storms and predict or even prevent such storms. Here, we analyzed spatiotemporal trends in dust storms that occurred in three main dust source regions during 1960-2007: Taklimakan Desert (western region [WR]), Badain Jaran and Tengger Deserts (middle region [MR]), and Otindag Sandy Land (eastern region [ER]). We analyzed daily dust storm frequency (DSF) at the 10-day scale (first [FTDM], middle [MTDM], and last [LTDM] 10 days of a month), and investigated the association of dust storm occurrences with meteorological factors. The 10-day DSF was greatest in the FTDM (accounting for 77.14% of monthly occurrences) in the WR, MTDM (45.85%) in the MR, and LTDM (72.12%) in the ER, showing a clear trend of movement from the WR to the ER. Temporal analysis of DSF revealed trend changes over time at annual and 10-day scales, with mutation points at 1985 and 2000. We applied single-factor and multiple-factor analyses to explore the driving mechanisms of DSF at the 10-day scale. Among single factors, a low wind-speed threshold, high solar radiation, and high evaporation were correlated with a high DSF, effectively explaining the variations in DSF at the 10-day scale; however, temperature, relative humidity, and precipitation poorly explained variations in DSF. Similarly, multiple-factor analysis using a classification and regression tree revealed that maximum wind speed was a major influencing factor of dust storm occurrence at the 10-day scale, followed by relative humidity, evaporation, and solar radiation; temperature and precipitation had weak influences. These findings help clarify the mechanisms of dust storm occurrence in East Asia.
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Affiliation(s)
- Chuanqi Xu
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qingyu Guan
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Jinkuo Lin
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Haiping Luo
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Liqin Yang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Zhe Tan
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qingzheng Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Ning Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Jing Tian
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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Zhao R, Guan Q, Luo H, Lin J, Yang L, Wang F, Pan N, Yang Y. Fuzzy synthetic evaluation and health risk assessment quantification of heavy metals in Zhangye agricultural soil from the perspective of sources. Sci Total Environ 2019; 697:134126. [PMID: 31491630 DOI: 10.1016/j.scitotenv.2019.134126] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [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: 06/11/2019] [Revised: 08/17/2019] [Accepted: 08/25/2019] [Indexed: 06/10/2023]
Abstract
Heavy metals in agricultural soil receive much attention because they are easily absorbed by crop into the ecosystem. Managing the discharge of heavy metals from the source is an effective way to prevent and control heavy metals pollution. Grouped principal component analysis (GPCA) and Positive Matrix Factorization (PMF) receptor models were utilized in this study to conduct source apportionment, and the former was optimal because of the accuracy of predicting. Based on the source contribution by GPCA/APCS, heavy metals were evaluated by fuzzy synthetic evaluation model and health risk assessment model. The results of source apportionment showed that heavy metals in Zhangye agricultural soil were mainly affected by steel industry, traffic, agrochemicals, manures, mining activities, leather industry and metal processing industry source. Fuzzy synthetic evaluation showed that the pollution levels of Chromium (Cr) derived by leather industry and metal processing industry and Nickel (Ni) derived by steel industry and traffic source were higher. Health risk assessment revealed that the non-carcinogenic and carcinogenic risks of Cr derived by leather industry and metal processing industry and Lead (Pb) derived by steel industry and traffic source were higher.
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Affiliation(s)
- Rui Zhao
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingyu Guan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Haiping Luo
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jinkuo Lin
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Liqin Yang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Feifei Wang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Ninghui Pan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yanyan Yang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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Guan Q, Zhang Q, Zhang C, Liu Q, Ren QL. HOTTIP regulates progression of endometrial cancer via activating PI3K/AKT pathway. Eur Rev Med Pharmacol Sci 2019; 22:3727-3733. [PMID: 29949146 DOI: 10.26355/eurrev_201806_15252] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the possible role of HOTTIP in the pathogenesis of endometrial cancer (EC) and its underlying mechanism. PATIENTS AND METHODS 76 EC tissues and 76 adjacent normal tissues were collected in this study. HOTTIP expression was detected by qRT-PCR (quantitative Real-Time Polymerase Chain Reaction), and its relationship with clinical prognosis of EC patients was then analyzed. The effect of in vitro HOTTIP on proliferation, cell cycle, apoptosis, colony formation, and migration was examined, respectively. Furthermore, the impact of HOTTIP on PI3K/AKT pathway was explored. RESULTS HOTTIP was remarkably overexpressed in EC patients. The survival rate of EC patients with high expression of HOTTIP was lower than that of patients with low expression, whereas the pathological grade and tumor size in high expression group were markedly higher than those of low expression group. After upregulation of HOTTIP by lentivirus transfection, the proliferation, colony formation, and migration of EC cells showed a remarkable increase, whereas cell apoptosis was remarkably inhibited. In addition, high expression of HOTTIP promoted the EC development by activating PI3K/AKT pathway. CONCLUSIONS Overexpressed HOTTIP promotes the development of endometrial cancer via activating PI3K/AKT pathway.
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Affiliation(s)
- Q Guan
- Department of Gynecology, Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, Nanjing, China.
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Guan Q, Zhao R, Wang F, Pan N, Yang L, Song N, Xu C, Lin J. Prediction of heavy metals in soils of an arid area based on multi-spectral data. J Environ Manage 2019; 243:137-143. [PMID: 31096168 DOI: 10.1016/j.jenvman.2019.04.109] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 10/22/2018] [Revised: 04/24/2019] [Accepted: 04/25/2019] [Indexed: 06/09/2023]
Abstract
With the rapid and extensive development of industry and agriculture, the soil environment inevitably becomes contaminated with heavy metals, thus creating adverse environmental conditions for flora and fauna. The traditional methods for combining field sampling with laboratory analysis of soil heavy metals are limited not only because they are time-consuming and expensive, but also because they are unable to obtain adequate information about the spatial distribution characteristics of heavy metals in soil over a large area. Three hundred and ninety-four soil samples (Gobi and farmland) were collected in an arid area in Jiuquan in Northwest China and analyzed for elements concentrations. Based on these measured concentrations, as well as rapid and environmentally friendly remote sensing (multi-spectral data), stepwise multiple linear regression (SMLR) and partial least-squares regression (PLS) were combined to predict concentrations and distributions of heavy metals in the soils of the study area. Furthermore, laboratory data were used to assess the accuracy of the prediction results. Obtained results suggest that the SMLR and PLS models were able to predict the metals contents in the study area. The concentrations of Cr, Ni, V and Zn could be predicted by two regression models, while those of Cu and Mn were predicted more accurately when they were attached to the SMLR model. The spatial distribution of heavy metals derived from the two models is consistent with measured values, indicating that it is reasonable to predict the concentrations of heavy metals in the soil of the study area using the multi-spectral data.
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Affiliation(s)
- Qingyu Guan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Rui Zhao
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Feifei Wang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Ninghui Pan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Liqin Yang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Na Song
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Chuanqi Xu
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Jinkuo Lin
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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Zhong F, Ying H, Jia W, Zhou X, Zhang H, Guan Q, Xu J, Fang L, Zhao J, Xu C. Characteristics and Follow-Up of 13 pedigrees with Gitelman syndrome. J Endocrinol Invest 2019; 42:653-665. [PMID: 30413979 PMCID: PMC6531408 DOI: 10.1007/s40618-018-0966-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 10/05/2018] [Indexed: 01/01/2023]
Abstract
CONTEXT Gitelman syndrome (GS) is clinically heterogeneous. The genotype and phenotype correlation has not been well established. Though the long-term prognosis is considered to be favorable, hypokalemia is difficult to cure. OBJECTIVE To analyze the clinical and genetic characteristics and treatment of all members of 13 GS pedigrees. METHODS Thirteen pedigrees (86 members, 17 GS patients) were enrolled. Symptoms and management, laboratory findings, and genotype-phenotype associations among all the members were analyzed. RESULTS The average ages at onset and diagnosis were 27.6 ± 10.2 years and 37.9 ± 11.6 years, respectively. Males were an average of 10 years younger and exhibited more profound hypokalemia than females. Eighteen mutations were detected. Two novel mutations (p.W939X, p.G212S) were predicted to be pathogenic by bioinformatic analysis. GS patients exhibited the lowest blood pressure, serum K+, Mg2+, and 24-h urinary Ca2+ levels. Although blood pressure, serum K+ and Mg2+ levels were normal in heterozygous carriers, 24-h urinary Na+ excretion was significantly increased. During follow-up, only 41.2% of patients reached a normal serum K+ level. Over 80% of patients achieved a normal Mg2+ level. Patients were taking 2-3 medications at higher doses than usual prescription to stabilize their K+ levels. Six patients were taking spironolactone simultaneously, but no significant elevation in the serum K+ level was observed. CONCLUSION The phenotypic variability of GS and therapeutic strategies deserve further research to improve GS diagnosis and prognosis. Even heterozygous carriers exhibited increased 24-h Na+ urine excretion, which may make them more susceptible to diuretic-induced hypokalemia.
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Affiliation(s)
- F Zhong
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, 324, Jing 5 Road, Jinan, 250021, Shandong, China
- Institute of Endocrinology, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, 250021, Shandong, China
| | - H Ying
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, 324, Jing 5 Road, Jinan, 250021, Shandong, China
- Institute of Endocrinology, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, 250021, Shandong, China
| | - W Jia
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, 324, Jing 5 Road, Jinan, 250021, Shandong, China
- Institute of Endocrinology, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, 250021, Shandong, China
| | - X Zhou
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, 324, Jing 5 Road, Jinan, 250021, Shandong, China
- Institute of Endocrinology, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, 250021, Shandong, China
| | - H Zhang
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, 324, Jing 5 Road, Jinan, 250021, Shandong, China
- Institute of Endocrinology, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, 250021, Shandong, China
| | - Q Guan
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, 324, Jing 5 Road, Jinan, 250021, Shandong, China
- Institute of Endocrinology, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, 250021, Shandong, China
| | - J Xu
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, 324, Jing 5 Road, Jinan, 250021, Shandong, China
- Institute of Endocrinology, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, 250021, Shandong, China
| | - L Fang
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, 324, Jing 5 Road, Jinan, 250021, Shandong, China
- Institute of Endocrinology, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, 250021, Shandong, China
| | - J Zhao
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, 324, Jing 5 Road, Jinan, 250021, Shandong, China.
- Institute of Endocrinology, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China.
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, 250021, Shandong, China.
| | - C Xu
- Department of Endocrinology and Metabolism, Shandong Provincial Hospital Affiliated to Shandong University, 324, Jing 5 Road, Jinan, 250021, Shandong, China.
- Institute of Endocrinology, Shandong Academy of Clinical Medicine, Jinan, 250021, Shandong, China.
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, 250021, Shandong, China.
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Guan Q, Luo H, Pan N, Zhao R, Yang L, Yang Y, Tian J. Contribution of dust in northern China to PM 10 concentrations over the Hexi corridor. Sci Total Environ 2019; 660:947-958. [PMID: 30743979 DOI: 10.1016/j.scitotenv.2018.12.412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/25/2018] [Accepted: 12/27/2018] [Indexed: 06/09/2023]
Abstract
Four main dust sources and dust events that affected the Hexi Corridor were defined, and the HYSPLIT model was used to trace the dust that originated during the dust episodes of 2015-2017 and to quantify the contributions of dust sources to PM10. On this basis, an algorithm that quantified the contribution of dust sources to PM10 was proposed in this study. The results showed that the main dust sources affecting the Hexi Corridor are generally located in the northern part of Xinjiang, which is mainly dominated by the Gurbantunggut Desert (source A); the Taklimakan and Kumtag Deserts and their surrounding areas (source B); both Qaidam Basins (source C); and the Badain Jaran Desert, Tengger Desert, Hobq Desert, Ulan Buh Desert, and Mu Us Sandy Land and their surrounding areas (source D). The occurrence time of dust and the frequency of PM10 exceeded the daily concentration standards and showed significant characteristics of being high in the spring and low in the autumn. The higher concentration of PM10 in the winter was mainly due to anthropogenic sources from heating process. The contribution of source area D to PM10 concentration was the greatest (42%). Source area B was one of the main dust sources (with a contribution rate of 23%); however, approximately 63% of the dust in this area originates from the Kumtag Desert. The contribution of source area A is lower than that of the study area due to greater precipitation and higher vegetation coverage (22% contribution rate). Source area C has the lowest contribution to the research area due to obstruction by the Qilian Mountain (13% contribution rate).
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Affiliation(s)
- Qingyu Guan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China; Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Haiping Luo
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China; Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Ninghui Pan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China; Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Rui Zhao
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China; Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Liqin Yang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China; Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yanyan Yang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China; Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jing Tian
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China; Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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Guan Q, Klinkhamer V, Klemt R, Becher JH, Bergschneider A, Preiss PM, Jochim S, Blume D. Density Oscillations Induced by Individual Ultracold Two-Body Collisions. Phys Rev Lett 2019; 122:083401. [PMID: 30932602 DOI: 10.1103/physrevlett.122.083401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Indexed: 06/09/2023]
Abstract
Access to single-particle momenta provides new means of studying the dynamics of a few interacting particles. In a joint theoretical and experimental effort, we observe and analyze the effects of a finite number of ultracold two-body collisions on the relative and single-particle densities by quenching two ultracold atoms with an initial narrow wave packet into a wide trap with an inverted aspect ratio. The experimentally observed spatial oscillations of the relative density are reproduced by a parameter-free zero-range theory and interpreted in terms of cross-dimensional flux. We theoretically study the long-time dynamics and find that the system does not approach its thermodynamic limit. The setup can be viewed as an advanced particle collider that allows one to watch the collision process itself.
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Affiliation(s)
- Q Guan
- Homer L. Dodge Department of Physics and Astronomy, The University of Oklahoma, 440 West Brooks Street, Norman, Oklahoma 73019, USA
| | - V Klinkhamer
- Physics Institute, Heidelberg University, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
| | - R Klemt
- Physics Institute, Heidelberg University, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
| | - J H Becher
- Physics Institute, Heidelberg University, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
| | - A Bergschneider
- Physics Institute, Heidelberg University, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
| | - P M Preiss
- Physics Institute, Heidelberg University, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
| | - S Jochim
- Physics Institute, Heidelberg University, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
| | - D Blume
- Homer L. Dodge Department of Physics and Astronomy, The University of Oklahoma, 440 West Brooks Street, Norman, Oklahoma 73019, USA
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Guan Q, Li F, Yang L, Zhao R, Yang Y, Luo H. Spatial-temporal variations and mineral dust fractions in particulate matter mass concentrations in an urban area of northwestern China. J Environ Manage 2018; 222:95-103. [PMID: 29804037 DOI: 10.1016/j.jenvman.2018.05.064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 10/06/2017] [Revised: 04/30/2018] [Accepted: 05/20/2018] [Indexed: 06/08/2023]
Abstract
PM10 and PM2.5 concentration data were collected from five air-quality monitoring sites in Lanzhou from October 2014 to October 2015, revealing the spatial-temporal behavior of local particulate matter (PM). The Hybrid Single Particle Lagrangian Integrated Trajectory Model (HYSPLIT) and the PM2.5-to-PM10 ratio model were used to investigate the primary transport path, potential source areas and contributions of the East Asian sandstorm to PM in Lanzhou. The analysis in three functional areas of the city indicated that the monthly variation in PM2.5 displayed a unimodal U pattern (the highest value was during the heating period), whereas that of PM10 displayed a bimodal pattern (the primary peak appeared in the spring, and the secondary peak appeared in the winter). These two patterns originated from different PM sources. The PM2.5 was primarily affected by human activities, and the PM10 was influenced by both natural and anthropogenic activities, but the relative contributions of these activities were associated with spatial-temporal variations. The daily PM10 and PM2.5 concentration variations displayed a bimodal pattern in the three functional areas: the peak values appeared at 11:00-13:00 and 22:00-1:00, respectively, and the lowest values appeared at 4:00-6:00 and 16:00-18:00, respectively. On the monthly, seasonal and daily scales, the PM concentrations exhibited similar patterns in the industrial, urban and rural areas, indicating that they were partly controlled by the regional natural environment. Meanwhile, due to anthropogenic factors, considerable PM amounts were discharged into the external environment, leading to maximum and minimum concentrations of PM appearing in the industrial and rural areas, respectively. The HYSPLIT model showed that dust storms from the northwest desert and Gobi regions affected Lanzhou three times in March 2015 and contributed 68% and 40% of the total mass of PM10 and PM2.5, respectively.
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Affiliation(s)
- Qingyu Guan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Fuchun Li
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Liqin Yang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Rui Zhao
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yanyan Yang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Haiping Luo
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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Guan Q, Song N, Wang F, Yang L, Liu Z. Contamination levels and health risk assessments of heavy metals in an oasis-desert zone: a case study in northwest China. Environ Sci Pollut Res Int 2018; 25:22606-22618. [PMID: 29845550 DOI: 10.1007/s11356-018-2015-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 01/04/2018] [Accepted: 04/11/2018] [Indexed: 06/08/2023]
Abstract
Rapid and extensive social and economic development has caused severe soil contamination by heavy metals in China. The spatial distribution, pollution levels, and health risks of metals were identified in an oasis-desert zone of northwest China. The mean concentrations of six heavy metals exceeded their corresponding background contents, and each metal concentration in farmland samples was higher than that in Gobi samples. Moreover, these heavy metals followed a similar spatial pattern and showed significant positive correlations with each other, indicating that they have the same sources. The contamination features of heavy metals and ecological risks were calculated using several quality indicators, and their health risks for population groups were quantified. The results showed that the Gobi and farmland soils were uncontaminated to moderately contaminated by heavy metals, and that farmland pollution was more serious than that of Gobi. The Gobi and farmland soils posed low ecological risks. As a whole, the non-carcinogenic risk which was caused by heavy metals was low for local residents, and the carcinogenic risk was within an acceptable level. Comparatively speaking, children were the more vulnerable population to health risks. The Zn and Cu pollution was relatively serious, and Cr and V were major contributors to health risks. Graphical abstract ᅟ.
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Affiliation(s)
- Qingyu Guan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Na Song
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Feifei Wang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Liqin Yang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Zeyu Liu
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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Guan Q, Wang F, Xu C, Pan N, Lin J, Zhao R, Yang Y, Luo H. Source apportionment of heavy metals in agricultural soil based on PMF: A case study in Hexi Corridor, northwest China. Chemosphere 2018; 193:189-197. [PMID: 29131977 DOI: 10.1016/j.chemosphere.2017.10.151] [Citation(s) in RCA: 240] [Impact Index Per Article: 40.0] [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: 09/14/2017] [Revised: 10/18/2017] [Accepted: 10/26/2017] [Indexed: 06/07/2023]
Abstract
Hexi Corridor is the most important base of commodity grain and producing area for cash crops. However, the rapid development of agriculture and industry has inevitably led to heavy metal contamination in the soils. Multivariate statistical analysis, GIS-based geostatistical methods and Positive Matrix Factorization (PMF) receptor modeling techniques were used to understand the levels of heavy metals and their source apportionment for agricultural soil in Hexi Corridor. The results showed that the average concentrations of Cr, Cu, Ni, Pb and Zn were lower than the secondary standard of soil environmental quality; however, the concentrations of eight metals (Cr, Cu, Mn, Ni, Pb, Ti, V and Zn) were higher than background values, and their corresponding enrichment factor values were significantly greater than 1. Different degrees of heavy metal pollution occurred in the agricultural soils; specifically, Ni had the most potential for impacting human health. The results from the multivariate statistical analysis and GIS-based geostatistical methods indicated both natural sources (Co and W) and anthropogenic sources (Cr, Cu, Mn, Ni, Pb, Ti, V and Zn). To better identify pollution sources of heavy metals in the agricultural soils, the PMF model was applied. Further source apportionment revealed that enrichments of Pb and Zn were attributed to traffic sources; Cr and Ni were closely related to industrial activities, including mining, smelting, coal combustion, iron and steel production and metal processing; Zn and Cu originated from agricultural activities; and V, Ti and Mn were derived from oil- and coal-related activities.
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Affiliation(s)
- Qingyu Guan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Feifei Wang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Chuanqi Xu
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Ninghui Pan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Jinkuo Lin
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Rui Zhao
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yanyan Yang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Haiping Luo
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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Guan Q, Cai A, Wang F, Yang L, Xu C, Liu Z. Spatio-temporal variability of particulate matter in the key part of Gansu Province, Western China. Environ Pollut 2017; 230:189-198. [PMID: 28651090 DOI: 10.1016/j.envpol.2017.06.045] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [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: 03/27/2017] [Revised: 06/09/2017] [Accepted: 06/09/2017] [Indexed: 05/22/2023]
Abstract
To investigate the spatial and temporal behaviors of particulate matter in Lanzhou, Jinchang and Jiayuguan during 2014, the hourly concentrations of PM2.5 and PM10 were collected from the Ministry of Environmental Protection (MEP) in this study. The analysis indicated that the mean annual PM10 (PM2.5) concentrations during 2014 were 115 ± 52 μg/m3 (57 ± 28 μg/m3), 104 ± 75 μg/m3 (38 ± 22 μg/m3) and 114 ± 72 μg/m3 (32 ± 17 μg/m3) in Lanzhou, Jinchang and Jiayuguan, respectively, all of which exceeded the Chinese national ambient air quality II standards for PM. Higher values for both PM fractions were generally observed in spring and winter, and lower concentrations were found in summer and autumn. Besides, the trend of seasonal variation of particulate matter (PM) in each city monitoring site is consistent with the average of the corresponding cities. Anthropogenic activities along with the boundary layer height and wind scale contributed to diurnal variations in PM that varied bimodally (Lanzhou and Jinchang) or unimodally (Jiayuguan). With the arrival of dust events, the PM10 concentrations changed dramatically, and the PM10 concentrations during dust storm events were, respectively, 19, 43 and 17 times higher than the levels before dust events in Lanzhou, Jinchang and Jiayuguan. The ratios (PM2.5/PM10) were lowest, while the correlations were highest, indicating that dust events contributed more coarse than fine particles, and the sources of PM are similar during dust storms. The relationships between local meteorological parameters and PM concentrations suggest a clear association between the highest PM concentrations, with T ≤ 7 °C, and strong winds (3-4 scale). However, the effect of relative humidity is complicated, with more PM10 and PM2.5 exceedances being registered with a relative humidity of less than 40% and 40-60% in Lanzhou, while higher exceedances in Jinchang appeared at a relative humidity of 80-100%.
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Affiliation(s)
- Qingyu Guan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Ao Cai
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China; Gansu Building Research Institute, Lanzhou, 730000, China
| | - Feifei Wang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Liqin Yang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Chuanqi Xu
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Zeyu Liu
- Key Laboratory of Western China's Environmental Systems (Ministry of Education), Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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Guan Q, Li S, Li X, Yang HP, Wang Y, Liu XY. [Feasibility of using amplitude-integrated electroencephalogram to identify epileptic seizures by pediatric intensive care unit medical staff independently]. Zhonghua Er Ke Za Zhi 2017; 54:823-828. [PMID: 27806789 DOI: 10.3760/cma.j.issn.0578-1310.2016.11.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the feasibility of using amplitude-integrated electroencephalogram (aEEG) to identify epileptic seizures by physicians and nurses in pediatric intensive care unit (PICU) independently. Method: Six testees (two PICU physicians versus one EEG physician and two PICU nurses versus one EEG technician) accepted a short-term training, then interpreted aEEG in a single blinded way. These aEEG recordings with synchronous VEEG monitoring were done from January 2013 to May 2015 in PICU. The testees should recognize and mark both the seizure type and the seizure duration from the two-channel recorder (C3/C4) of aEEG (short-term seizure or status epilepticus (SE)). Using raw VEEG monitoring as a gold standard to determine a seizure, the accuracy, missing and error rate of each testees were confirmed, and the reasons of the latter two situations were analyzed by rank sum test and inter-testee agreement (k) . Result: Eighty-two aEEG recordings from 56 patients were interpreted. Thirty-two recordings had 141 epileptic seizures confirmed by VEEG, including 119 short-term seizures and 22 SE. There were 50 recordings without seizure. As for the short-term seizures, the average accuracy of 6 testees by aEEG alone was (66±4)%. The accuracy for SE was 100% in three testees and 95% in the other three. Missing rate of the seizures were 24.1%-32.6% in all 6 testees. Those missed seizures were all short-term (duration less than 20 seconds) but one SE. The average error rate was (19±9) times (P=0.000). These false interpretations were misunderstanding, many kinds of artifacts were regarded as epileptic seizures. The accuracy and missing rate among the testees had no significance(P=0.930, 0.996), but the error rate had(P=0.000). The inter-testee agreement (k) between two physicians in PICU and the EEG doctor were 0.700 and 0.687 respectively (P<0.01), which is good. As for two nurses and the EEG technician, the inter-testee agreement (k) was 0.705 and 0.396 respectively (P<0.01). Conclusion: Most of the seizures especially status epilepticus can be detected by PICU staff after short term training. The accuracy of identification of epileptic seizures was similar among observers from PICU and EEG, although some short-term seizures may be missed, and artifacts are mistaken.It's necessary to communicate with EEG doctors and compare with the row VEEG when physicians in PICU find suspicious events.
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Affiliation(s)
- Q Guan
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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Guan Q, Cai A, Wang F, Wang L, Wu T, Pan B, Song N, Li F, Lu M. Heavy metals in the riverbed surface sediment of the Yellow River, China. Environ Sci Pollut Res Int 2016; 23:24768-24780. [PMID: 27658405 DOI: 10.1007/s11356-016-7712-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 05/28/2016] [Accepted: 09/14/2016] [Indexed: 06/06/2023]
Abstract
One hundred and eleven riverbed surface sediment (RSS) samples were collected to determine the heavy metal concentration throughout the Inner Mongolia reach of the Yellow River (IMYR), which has been subjected to rapid economic and industrial development over the past several decades. Comprehensive analysis of heavy metal contamination, including the enrichment factor, geo-accumulation index, contamination factor, pollution load index, risk index, principal component analysis (PCA), hierarchical cluster analysis (HCA), and Pearson correlation analysis, was performed. The results demonstrated that a low ecological risk with a moderate level of heavy metal contamination was present in the IMYR due to the risk index (RI) being less than 150 and the pollution load index (PLI) being above 1, and the averaged concentrations of Co, Cr, Cu, Mn, Ni, Ti, V, and Zn in the RSS, with standard deviations, were 144 ± 69, 77.91 ± 39.28, 22.95 ± 7.67, 596 ± 151, 28.50 ± 8.01, 3793 ± 487, 69.11 ± 18.44, and 50.19 ± 19.26 mg kg-1, respectively. PCA, HCA, and Pearson correlation analysis revealed that most of the RSS was heavily contaminated with Zn, Ni, and Cu, due to the influence of anthropogenic activities; moderately contaminated with Ti, Mn, V and Cr because of the dual influence of anthropogenic activities and nature; and slightly to not contaminated with Co because it occurs mainly in the bordering desert areas. Graphic abstract ᅟ.
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Affiliation(s)
- Qingyu Guan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Ao Cai
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Feifei Wang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Lei Wang
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Tao Wu
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Baotian Pan
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Na Song
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Fuchun Li
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Min Lu
- Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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Guan Q, Wang L, Wang F, Pan B, Song N, Li F, Lu M. Phosphorus in the catchment of high sediment load river: A case of the Yellow River, China. Sci Total Environ 2016; 572:660-670. [PMID: 27507086 DOI: 10.1016/j.scitotenv.2016.06.125] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 06/15/2016] [Accepted: 06/16/2016] [Indexed: 06/06/2023]
Abstract
Surface sediment samples concurrently collected in the catchment of the Ningxia-Inner Mongolian reach of Yellow River (NIMYR) were analyzed to determine the phosphorus and correlated physiochemical properties of sediments. Samples were obtained from three main areas: the riverbed surface sediment (RSS), the floodplain surface sediment (FSS) and the desert surface sediment (DSS). The sequence of phosphorus-contamination level in this catchment, determined by a cumulative distribution function and multivariate statistical analysis, were FSS>RSS>DSS. Moreover, because of the impacts of anthropogenic activities, the sampling site with the highest and lowest phosphorus concentration (mgkg-1) of this catchment appeared in RSS (749.40) and DSS (200.10) respectively. In addition, this is the first study to present a qualification of the effect of the sediment's physicochemical properties on phosphorus by the multivariate regression tree analysis. Co-precipitation of phosphate with calcite [i], phosphate absorbed onto ferric hydroxides [ii] and grain-size effect [iii] were the three main mechanisms for phosphorus distribution in the sediment of NIMYR. The contributions of these three mechanisms to RSS and FSS were, respectively, [i]>[iii]>[ii] and [i]>[ii]>[iii]. The heaviest phosphorus-contaminated group of RSS was primarily controlled by [i], whereas the heaviest phosphorus-contaminated group of FSS was controlled by [i] and [ii], indicating that the FSS had a higher potential risk of releasing phosphorus from the sediment to overlying water.
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Affiliation(s)
- Qingyu Guan
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) & Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Lei Wang
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) & Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Feifei Wang
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) & Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Baotian Pan
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) & Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Na Song
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) & Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Fuchun Li
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) & Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Min Lu
- Key Laboratory of Western China's Environmental Systems(Ministry of Education) & Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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Tong M, Zheng W, Li H, Li X, Ao L, Shen Y, Liang Q, Li J, Hong G, Yan H, Cai H, Li M, Guan Q, Guo Z. Multi-omics landscapes of colorectal cancer subtypes discriminated by an individualized prognostic signature for 5-fluorouracil-based chemotherapy. Oncogenesis 2016; 5:e242. [PMID: 27429074 PMCID: PMC5399173 DOI: 10.1038/oncsis.2016.51] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 04/07/2016] [Revised: 05/27/2016] [Accepted: 06/17/2016] [Indexed: 12/11/2022] Open
Abstract
Until recently, few prognostic signatures for colorectal cancer (CRC) patients receiving 5-fluorouracil (5-FU)-based chemotherapy could be used in clinical practice. Here, using transcriptional profiles for a panel of cancer cell lines and three cohorts of CRC patients, we developed a prognostic signature based on within-sample relative expression orderings (REOs) of six gene pairs for stage II-III CRC patients receiving 5-FU-based chemotherapy. This REO-based signature had the unique advantage of being insensitive to experimental batch effects and free of the impractical data normalization requirement. After stratifying 184 CRC samples with multi-omics data from The Cancer Genome Atlas into two prognostic groups using the REO-based signature, we further revealed that patients with high recurrence risk were characterized by frequent gene copy number aberrations reducing 5-FU efficacy and DNA methylation aberrations inducing distinct transcriptional alternations to confer 5-FU resistance. In contrast, patients with low recurrence risk exhibited deficient mismatch repair and carried frequent gene mutations suppressing cell adhesion. These results reveal the multi-omics landscapes determining prognoses of stage II-III CRC patients receiving 5-FU-based chemotherapy.
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Affiliation(s)
- M Tong
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - W Zheng
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - H Li
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - X Li
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - L Ao
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Y Shen
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Q Liang
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - J Li
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - G Hong
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - H Yan
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - H Cai
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - M Li
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Q Guan
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
| | - Z Guo
- Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China
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Peng Z, Xu WW, Sham Y, Lam H, Sun D, Cheng L, Rasic NF, Guan Q, James AA, Simons FER. Mosquito salivary allergen Aed a 3: cloning, comprehensive molecular analysis, and clinical evaluation. Allergy 2016; 71:621-8. [PMID: 26608594 DOI: 10.1111/all.12812] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND Allergic reactions to mosquito bites are an increasing clinical concern. Due to the lack of availability of mosquito salivary allergens, they are underdiagnosed. Here, we reported a newly cloned mosquito Aedes (Ae.) aegypti salivary allergen. METHODS A cDNA encoding a 30-kDa Ae. aegypti salivary protein, designated Aed a 3, was isolated from an expression library. The full-length cDNA was cloned into a baculovirus expression vector, and recombinant Aed a 3 (rAed a 3) was expressed, purified, and characterized. Skin prick tests with purified rAed a 3 and Ae. aegypti bite tests were performed in 43 volunteers. Serum rAed a 3-specific IgE levels were measured in 28 volunteers. RESULTS The primary nucleotide sequence, deduced amino acid sequence, and IgE-binding sites of Aed a 3 were identified. rAed a 3-selected antibodies recognized a 30-kDa Ae. aegypti saliva protein. rAed a 3 bound IgE in mosquito-allergic volunteers and the binding could be inhibited by the addition of natural mosquito extract dose dependently. Immediate skin test reactions to rAed a 3 correlated significantly with mosquito bite-induced reactions. Of the bite test-positive volunteers, 32% had a positive rAed a 3 skin test and 46% had specific IgE. No bite test-negative volunteers reacted to rAed a 3 in either the skin tests or the IgE assays, confirming the specificity of the assay. CONCLUSIONS Aed a 3 that corresponds to the Aegyptin protein is a major mosquito salivary allergen. Its recombinant form has biological activity and is suitable for use in skin tests and specific IgE assays in mosquito-allergic individuals.
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Affiliation(s)
- Z. Peng
- Department of Pediatrics and Child Health; University of Manitoba; Winnipeg MB Canada
- Department of Immunology; University of Manitoba; Winnipeg MB Canada
| | - W. W. Xu
- Department of Pediatrics and Child Health; University of Manitoba; Winnipeg MB Canada
- Department of Biochemistry and Medical Genetics; University of Manitoba; Winnipeg MB Canada
| | - Y. Sham
- Center for Drug Design; Academic Health Center; University of Minnesota; Minneapolis MN USA
| | - H. Lam
- Department of Pediatrics and Child Health; University of Manitoba; Winnipeg MB Canada
| | - D. Sun
- Department of Pediatrics and Child Health; University of Manitoba; Winnipeg MB Canada
| | - L. Cheng
- Department of Pediatrics and Child Health; University of Manitoba; Winnipeg MB Canada
| | - N. F. Rasic
- Department of Pediatrics and Child Health; University of Manitoba; Winnipeg MB Canada
| | - Q. Guan
- Department of Pediatrics and Child Health; University of Manitoba; Winnipeg MB Canada
- Department of Immunology; University of Manitoba; Winnipeg MB Canada
| | - A. A. James
- Departments of Microbiology & Molecular Genetics and Molecular Biology & Biochemistry; University of California; Irvine CA USA
| | - F. E. R. Simons
- Department of Pediatrics and Child Health; University of Manitoba; Winnipeg MB Canada
- Department of Immunology; University of Manitoba; Winnipeg MB Canada
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Yang J, Zhang X, Liu Z, Yuan Z, Song Y, Shao S, Zhou X, Yan H, Guan Q, Gao L, Zhang H, Zhao J. High-Cholesterol Diet Disrupts the Levels of Hormones Derived from Anterior Pituitary Basophilic Cells. J Neuroendocrinol 2016; 28:12369. [PMID: 27020952 DOI: 10.1111/jne.12369] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 01/13/2016] [Accepted: 01/21/2016] [Indexed: 11/30/2022]
Abstract
Emerging evidence shows that elevated cholesterol levels are detrimental to health. However, it is unclear whether there is an association between cholesterol and the pituitary. We investigated the effects of a high-cholesterol diet on pituitary hormones using in vivo animal studies and an epidemiological study. In the animal experiments, rats were fed a high-cholesterol or control diet for 28 weeks. In rats fed the high-cholesterol diet, serum levels of thyroid-stimulating hormone (TSH; also known as thyrotrophin), luteinising hormone (LH) and follicle-stimulating hormone (FSH) produced by the basophilic cells of the anterior pituitary were elevated in a time-dependent manner. Among these hormones, TSH was the first to undergo a significant change, whereas adrenocorticotrophic hormone (ACTH), another hormone produced by basophilic cells, was not changed significantly. As the duration of cholesterol feeding increased, cholesterol deposition increased gradually in the pituitary. Histologically, basophilic cells, and especially thyrotrophs and gonadotrophs, showed an obvious increase in cell area, as well as a potential increase in their proportion of total pituitary cells. Expression of the β-subunit of TSH, FSH and LH, which controls hormone specificity and activity, exhibited a corresponding increase. In the epidemiological study, we found a similar elevation of serum TSH, LH and FSH and a decrease in ACTH in patients with hypercholesterolaemia. Significant positive correlations existed between serum total cholesterol and TSH, FSH or LH, even after adjusting for confounding factors. Taken together, the results of the present study suggest that the high-cholesterol diet affected the levels of hormones derived from anterior pituitary basophilic cells. This phenomenon might contribute to the pituitary functional disturbances described in hypercholesterolaemia.
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Affiliation(s)
- J Yang
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - X Zhang
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - Z Liu
- Clinical Laboratory, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
| | - Z Yuan
- Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, Shandong, China
| | - Y Song
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - S Shao
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - X Zhou
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - H Yan
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - Q Guan
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - L Gao
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
- Scientific Center, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
| | - H Zhang
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
| | - J Zhao
- Department of Endocrinology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, China
- Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong, China
- Shandong Clinical Medical Center of Endocrinology and Metabolism, Jinan, Shandong, China
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Guan Q, Wang L, Pan B, Guan W, Sun X, Cai A. Distribution features and controls of heavy metals in surface sediments from the riverbed of the Ningxia-Inner Mongolian reaches, Yellow River, China. Chemosphere 2016; 144:29-42. [PMID: 26344146 DOI: 10.1016/j.chemosphere.2015.08.036] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [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: 04/20/2015] [Revised: 08/01/2015] [Accepted: 08/10/2015] [Indexed: 06/05/2023]
Abstract
Fifty-six riverbed surface sediment (RSS) samples were collected along the Ningxia-Inner Mongolian reaches of the Yellow River (NIMYR). These samples were analyzed to determine their heavy metal concentrations (Co, Cr, Ni, Cu, V and Zn), grain sizes, sediment sources and the causes of their heavy metal contamination. The cumulative distribution functions of the heavy metals in RSS of these reaches are plotted to identify the geochemical baseline level (GBL) of each element and determine the average background concentration of each heavy metal. Principal component analysis and hierarchical cluster analysis are conducted based on the grain sizes of RSS, and the samples are classified into two groups: coarse grained samples (CGS) and fine grained samples (FGS). The degree of heavy metal contamination for each sample is identified by its enrichment factor (EF). The results reveal that the coarse particle component (medium sand and coarse sand) in the bed materials is chiefly from the bordering deserts along the Yellow River. The clay and silt in the bed materials chiefly originate from the upper reaches of the Yellow River, and the fine sand is identified as a hybrid sediment derived from the upper reaches of the Yellow River and the bordering deserts. The CGS primarily appear in the reaches bordering deserts, and the sites are near the confluence of gullies and the Yellow River. The FGS are located adjacent to cities with especially strong industrial activity such as Wuhai, Bayan Nur, Baotou and Togtoh. The Cr, Ni, Cu, V and Zn concentrations (mg kg(-1)) are 84.34 ± 49.46, 30.21 ± 7.90, 25.01 ± 7.61, 73.17 ± 18.92 and 55.62 ± 18.93 in the FGS and 65.07 ± 19.51, 23.86 ± 6.84, 18.04 ± 3.8, 53.47 ± 10.57 and 34.89 ± 9.19 in the CGS respectively, and the concentrations of Co in the CGS (213.40 ± 69.71) are notably higher than in the FGS (112.02 ± 48.87) and greater than the Co GBL (210). The most contaminated samples in the NIMYR are adjacent to the cities of Wuhai (EF(Cr) = 5.19; EF(Ni) = 1.96), Bayan Nur (EF(Cr) = 5.88; EF(Ni )= 2.08) and Baotou (EF(Cu) = 1.55; EF(Zn) = 1.68) where the Cr, Ni, Cu, V and Zn concentrations are above the correlated GBLs (85, 34, 27, 75 and 62 mg kg(-1), respectively), which are mostly affected by industrial processes, and samples that are only moderately contaminated by heavy metals are found in the reaches bordering desert (Wuhai-Baotou) because contaminated sediments are diluted by uncontaminated desert sand. In contrast, all of the Cu, Cr, Ni, V and Zn concentrations in RSS of the Qingtongxia-Wuhai reach are lower than the correlated GBLs of elements.
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Affiliation(s)
- Qingyu Guan
- Key Laboratory of Western China's Environmental Systems, Ministry of Education, Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Lei Wang
- Key Laboratory of Western China's Environmental Systems, Ministry of Education, Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Baotian Pan
- Key Laboratory of Western China's Environmental Systems, Ministry of Education, Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenqian Guan
- Key Laboratory of Western China's Environmental Systems, Ministry of Education, Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xiazhong Sun
- Key Laboratory of Western China's Environmental Systems, Ministry of Education, Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Ao Cai
- Key Laboratory of Western China's Environmental Systems, Ministry of Education, Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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Su J, Hu C, Yan X, Jin Y, Chen Z, Guan Q, Wang Y, Zhong D, Jansson C, Wang F, Schnürer A, Sun C. Expression of barley SUSIBA2 transcription factor yields high-starch low-methane rice. Nature 2015. [PMID: 26200336 DOI: 10.1038/nature14673] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Atmospheric methane is the second most important greenhouse gas after carbon dioxide, and is responsible for about 20% of the global warming effect since pre-industrial times. Rice paddies are the largest anthropogenic methane source and produce 7-17% of atmospheric methane. Warm waterlogged soil and exuded nutrients from rice roots provide ideal conditions for methanogenesis in paddies with annual methane emissions of 25-100-million tonnes. This scenario will be exacerbated by an expansion in rice cultivation needed to meet the escalating demand for food in the coming decades. There is an urgent need to establish sustainable technologies for increasing rice production while reducing methane fluxes from rice paddies. However, ongoing efforts for methane mitigation in rice paddies are mainly based on farming practices and measures that are difficult to implement. Despite proposed strategies to increase rice productivity and reduce methane emissions, no high-starch low-methane-emission rice has been developed. Here we show that the addition of a single transcription factor gene, barley SUSIBA2 (refs 7, 8), conferred a shift of carbon flux to SUSIBA2 rice, favouring the allocation of photosynthates to aboveground biomass over allocation to roots. The altered allocation resulted in an increased biomass and starch content in the seeds and stems, and suppressed methanogenesis, possibly through a reduction in root exudates. Three-year field trials in China demonstrated that the cultivation of SUSIBA2 rice was associated with a significant reduction in methane emissions and a decrease in rhizospheric methanogen levels. SUSIBA2 rice offers a sustainable means of providing increased starch content for food production while reducing greenhouse gas emissions from rice cultivation. Approaches to increase rice productivity and reduce methane emissions as seen in SUSIBA2 rice may be particularly beneficial in a future climate with rising temperatures resulting in increased methane emissions from paddies.
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Affiliation(s)
- J Su
- 1] Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China [2] Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, Swedish University of Agricultural Sciences, PO Box 7080, SE-75007 Uppsala, Sweden
| | - C Hu
- 1] Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China [2] Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, Swedish University of Agricultural Sciences, PO Box 7080, SE-75007 Uppsala, Sweden
| | - X Yan
- Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, Swedish University of Agricultural Sciences, PO Box 7080, SE-75007 Uppsala, Sweden
| | - Y Jin
- 1] Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, Swedish University of Agricultural Sciences, PO Box 7080, SE-75007 Uppsala, Sweden [2] Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Hunan Agricultural University, Changsha 410128, China
| | - Z Chen
- Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
| | - Q Guan
- Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
| | - Y Wang
- Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
| | - D Zhong
- Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
| | - C Jansson
- The Environmental Molecular Sciences Laboratory (EMSL), Pacific Northwest National Laboratory, PO Box 999, K8-93 Richland, Washington 99352, USA
| | - F Wang
- Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
| | - A Schnürer
- Department of Microbiology, Uppsala BioCenter, Swedish University of Agricultural Sciences, SE-75007 Uppsala, Sweden
| | - C Sun
- Department of Plant Biology, Uppsala BioCenter, Linnean Center for Plant Biology, Swedish University of Agricultural Sciences, PO Box 7080, SE-75007 Uppsala, Sweden
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Wang M, Petrini MA, Guan Q. Evaluation of family-centred services from parents of Chinese children with cerebral palsy with the Measure of Processes of Care. Child Care Health Dev 2015; 41:408-15. [PMID: 25081418 DOI: 10.1111/cch.12183] [Citation(s) in RCA: 9] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/30/2014] [Indexed: 12/01/2022]
Abstract
BACKGROUND Family-centred service (FCS) has become essential to parents of children with cerebral palsy (CP) and professionals in Chinese paediatric rehabilitation services. FCS practice meets the unique needs of the child and family, through facilitation of optimal service provision delivered by professionals, and ensures service systems to be flexible, appropriate and actively responsive to the family needs. Parents used the Measure of Processes of Care 20 (MPOC-20) questionnaire to evaluate and verify the efficacy of use in China. The aims of the present study were twofold: to assess the validity and reliability of the Chinese MPOC-20, and investigate the range of parents' satisfaction with service provision in an FCS practice using the MPOC-20. METHODS The Chinese MPOC-20 was selected to assess parent satisfaction with service provision of professionals in FCS practice. Participants were parents of children under 8 years of age with CP, who had received rehabilitation services between May 2012 and May 2013, and were receiving rehabilitation services in May 2013 at a hospital outpatient department and a rehabilitation centre. RESULTS The reliability and validity of the Chinese MPOC-20 were confirmed. Parents evaluated FCS practice with the MPOC-20 survey. Respectful and supportive care was rated with the highest score and providing general information the lowest. Parents according to the data were dissatisfied with the lack of information. CONCLUSIONS Parents fairly evaluated service provision of professionals in FCS practice with the Chinese MPOC-20. Professionals received feedback reports of parents, summaries of the inadequacy of service delivery, and developed and implemented ameliorated measures in the FCS policy to strive to provide exemplary service.
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Affiliation(s)
- M Wang
- Department of Critical Care and Community Nursing, School of Nursing, Jilin Medical College, Changchun, Jilin, China
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50
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Guan Q, Liu S. Hydrothermal syntheses and crystal structure of a novel one-dimensional Pb(II) coordination polymer with chenodeoxycholic acid ligand. RUSS J COORD CHEM+ 2014. [DOI: 10.1134/s1070328414110013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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