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Long-term exposure to air pollution and cerebrovascular disease: findings from Beijing Health Management

《环境科学与工程前沿(英文)》 2023年 第17卷 第7期 doi: 10.1007/s11783-023-1684-2

摘要:

● This study explored the long-term association by double robust additive models.

关键词: Air pollution     Cerebrovascular disease     Incidence     Long-term exposure     Doubly robust additive model    

Lung function and air pollution exposure in adults with asthma in Beijing: a 2-year longitudinal panel

《医学前沿(英文)》 2022年 第16卷 第4期   页码 574-583 doi: 10.1007/s11684-021-0882-1

摘要: The effect of air pollution on the lung function of adults with asthma remains unclear to date. This study followed 112 patients with asthma at 3-month intervals for 2 years. The pollutant exposure of the participants was estimated using the inverse distance weight method. The participants were divided into three groups according to their lung function level at every visit. A linear mixed-effect model was applied to predict the change in lung function with each unit change in pollution concentration. Exposure to carbon monoxide (CO) and particles less than 2.5 micrometers in diameter (PM2.5) was negatively associated with large airway function in participants. In the severe group, exposure to chronic sulfur dioxide (SO2) was negatively associated with post-bronchodilator forced expiratory flow at 50%, between 25% and 75% of vital capacity % predicted (change of 95% CI per unit: −0.34 (−0.55, −0.12), −0.24 (−0.44, −0.03), respectively). In the mild group, the effect of SO2 on the small airways was similar to that in the severe group, and it was negatively associated with large airway function. Exposure to CO and PM2.5 was negatively associated with the large airway function of adults with asthma. The negative effects of SO2 were more evident and widely observed in adults with severe and mild asthma than in adults with moderate asthma. Patients with asthma react differently to air pollutants as evidenced by their lung function levels.

关键词: lung function     asthma     air pollution     adult    

Investigating the impact of air pollution on AMI and COPD hospital admissions in the coastal city of

《环境科学与工程前沿(英文)》 2022年 第16卷 第5期 doi: 10.1007/s11783-021-1490-7

摘要:

• The impact of air pollution on AMI/COPD hospital admissions were examined.

关键词: AMI     COPD     Air pollution exposure     GAM    

On the potential of iPhone significant location data to characterize individual mobility for air pollution

《环境科学与工程前沿(英文)》 2022年 第16卷 第5期 doi: 10.1007/s11783-022-1542-7

摘要:

● We evaluated the accuracy of iPhone data in capturing time-activity patterns.

关键词: Air pollution exposure     Human mobility     iPhone     Significant Location     Smartphone data    

Same stimuli, different responses: a pilot study assessing air pollution visibility impacts on emotional

《环境科学与工程前沿(英文)》 2023年 第17卷 第2期 doi: 10.1007/s11783-023-1620-5

摘要:

● Emotional responses to visibility-reducing haze was assessed in a controlled lab.

关键词: Air pollution     Emotional wellbeing     Variability     Visual exposure     Emotional bias    

Toxic effects of wastewater from various phases of monosodium glutamate production on seed germination and root elongation of crops

LIU Rui, ZHOU Qixing, ZHANG Lanying, GUO Hao

《环境科学与工程前沿(英文)》 2007年 第1卷 第1期   页码 114-119 doi: 10.1007/s11783-007-0021-5

摘要: To make a comprehensive assessment on monosodium glutamate (MSG) wastewater pollution, a pollution exposure experiment was carried out on the seed germination and root elongation of wheat, Chinese cabbage and tomato by using the wastewater discharged from different processing phases of MSG production. The results showed that there were significantly positive linear relationships between the inhibitory rates of wheat seed germination and root elongation and the COD of the mother liquor scraps. The toxicity of MSG wastewater to the test crops was in the order of tomato > Chinese cabbage > wheat, indicating that tomato was the most sensitive to the wastewater, and could be considered as an ideal toxic bioindicator. The half-effect concentrations (IC) based on the seed germination and root elongation of the test crops exposed to the wastewater discharged from various processing phases of MSG production was 22.0 32 432 and 17.3 3320 mg/L, respectively.

关键词: monosodium glutamate     different     inhibitory     pollution exposure     half-effect    

Untargeted metabolomic analysis of pregnant women exposure to perfluorooctanoic acid at different degrees

《环境科学与工程前沿(英文)》 2023年 第17卷 第3期 doi: 10.1007/s11783-023-1628-x

摘要:

● Metabolome can distinguish pregnant women exposure to PFOA at different degrees.

关键词: Perfluorooctanoic acid     Exposure     Pregnant women     Metabolomic     GSH     Microbiota metabolism    

Ultraviolet exposure enhanced silicon direct bonding

Guanglan LIAO, Xuekun ZHANG, Xiaohui LIN, Canghai MA, Lei NIE, Tielin SHI,

《机械工程前沿(英文)》 2010年 第5卷 第1期   页码 87-92 doi: 10.1007/s11465-009-0078-x

摘要: Ultraviolet (UV) exposure, as an additional technique following the traditional wet chemical activation processes, is applied to enhance hydrophilic silicon direct bonding. The effects of UV exposure on silicon wafers’ nano-topography and bonding strength are studied. It is found that the surface roughness of silicon wafers initially decreases and then increases with UV exposure time, and the bonding strength increases and then decreases accordingly. The correlations of annealing temperature and annealing time vs. bonding strength are experimentally explored. Results indicate that the bonding strength increases sharply then gently with increasing annealing temperature and annealing time using UV exposure. Besides, the reliability of silicon direct bonding with UV exposure enhancement after the high/low temperature cycle test, constant temperature and humidity test, vibration test and shock test is investigated. It follows from the results that the bonding strength of silicon wafer pairs with UV exposure decreases after the environmental tests, whereas the residual strength is still higher than that without UV exposure, and the variation trends of bonding strength vs. UV exposure time, annealing temperature and annealing time remain unchanged. Therefore, following the traditional wet chemical activation processes, appropriate UV exposure (about three minutes in this study) is effective and promising to enhance silicon direct bonding.

关键词: ultraviolet (UV) exposure     silicon direct bonding     bonding strength     reliability    

Paternal environmental exposure-induced spermatozoal small noncoding RNA alteration meditates the intergenerational

《医学前沿(英文)》 2022年 第16卷 第2期   页码 176-184 doi: 10.1007/s11684-021-0885-y

摘要: Studies of human and mammalian have revealed that environmental exposure can affect paternal health conditions as well as those of the offspring. However, studies that explore the mechanisms that meditate this transmission are rare. Recently, small noncoding RNAs (sncRNAs) in sperm have seemed crucial to this transmission due to their alteration in sperm in response to environmental exposure, and the methodology of microinjection of isolated total RNA or sncRNAs or synthetically identified sncRNAs gradually lifted the veil of sncRNA regulation during intergenerational inheritance along the male line. Hence, by reviewing relevant literature, this study intends to answer the following research concepts: (1) paternal environmental factors that can be passed on to offspring and are attributed to spermatozoal sncRNAs, (2) potential role of paternal spermatozoal sncRNAs during the intergenerational inheritance process, and (3) the potential mechanism by which spermatozoal sncRNAs meditate intergenerational inheritance. In summary, increased attention highlights the hidden wonder of spermatozoal sncRNAs during intergenerational inheritance. Therefore, in the future, more studies should focus on the origin of RNA alteration, the target of RNA regulation, and how sncRNA regulation during embryonic development can be sustained even in adult offspring.

关键词: small noncoding RNAs     epigenetic inheritance     paternal intergenerational inherence     extracellular vesicles    

Study of blood exposure-related mental health illness among clinical nurses

null

《医学前沿(英文)》 2017年 第11卷 第1期   页码 147-151 doi: 10.1007/s11684-016-0481-8

摘要:

Nurses are subjected to high amount of stress in the medical setting, and work-related stress often leads to mental problems. This study aims to investigate the mental health status of nurses exposed to blood through needlestick injuries. A total of 302 nurses working in the hospital of Guangdong, China, participated in this study. Out of the 302 nurses, 140 did not experience any needlestick injuries during the previous week, whereas 162 nurses experienced needlestick injuries. The General Health Questionnaire (GHQ)-28 Standardized Questionnaire, which uses physical, anxiety, social function, and depression subscales, was used in this study. No significant difference between nurses exposed to blood and nurses not exposed to blood was found in terms of gender, age, length of employment, and civil status (P>0.05). Results from the GHQ-28 Standardized Questionnaire showed that 75.9% (123/162) of nurses exposed to blood were suspected to suffer from mental disorders, whereas 40% (56/140) of nurses not exposed to blood were suspected to suffer from mental disorders. The mean mental health scores of nurses exposed to blood and those not exposed were 8.73±7.32 and 5.69±5.70, respectively. From these results, we can conclude that blood exposure from needlestick injuries leads to higher prevalence of depression, anxiety, and stress symptoms in nurses. This finding highlights the importance of providing efficient, adequate, and appropriate support services after nurses are exposed to blood from needlestick injuries.

关键词: blood exposure     needlestick injuries     mental health     nurses    

Effects of hemin and thermal stress exposure on JWA expression

ZHAO Ming, CHEN Rui, LI Aiping, ZHOU Jianwei

《医学前沿(英文)》 2007年 第1卷 第1期   页码 104-108 doi: 10.1007/s11684-007-0020-8

摘要: To investigate the expression of JWA after hemin and (or) thermal stress exposure, we treated K562 (chronic myelogenous leukemia cells) cells with different doses of hemin and thermal stress using different exposure times. The expression of JWA protein was determined by Western blot analysis. Reverse transcription-polymerase chain reaction was carried out to determine JWA mRNA expression. JWA promoter transcription activity analysis was performed by chloramphenicol acetyl transferase-enzyme linked immunosorbent assay (CAT-ELISA). The expression of JWA protein was significantly increased by up to (3.23±0.57) folds compared to the control in K562 cells after hemin treatment (50 µM for one week), and a similar pattern was observed in the cells after treatment with thermal stress (42 °C) for 2 hours [increased by (8.00±1.73) folds]. The expression of JWA mRNA was also significantly elevated by up to (1.37±0.06) folds in K562 cells treated with hemin (30 µM for 48 hours), and a similar regulatory pattern [increased by (1.87±0.13) folds] was observed with thermal stress exposure (42 °C) for 30 minutes. However, a combined antagonistic effect was observed in the treatment of K562 cells with hemin (30 µM, 48 h) followed by thermal stress (42 °C, 30 min). CAT-ELISA further confirmed that either hemin or thermal stress treatment could up-regulate JWA transcription activity, however, the effects could be counteracted partly by treatment with a combination of both. Hemin and thermal stress might regulate JWA expression via distinct intracellular signal transduction pathways.

Occupational risk of exposure to methicillin-resistant (MRSA) and the quality of infection hygiene in

《环境科学与工程前沿(英文)》 2021年 第15卷 第3期 doi: 10.1007/s11783-020-1333-y

摘要:

• Staff members were not colonised with MRSA.

关键词: Antibiotic resistance     Airborne MRSA     Bioaerosols     Healthcare-associated infections     Healthcare worker     Occupational health    

Universal influenza virus vaccines: what can we learn from the human immune response following exposure

null

《医学前沿(英文)》 2017年 第11卷 第4期   页码 471-479 doi: 10.1007/s11684-017-0602-z

摘要:

Several universal influenza virus vaccine candidates based on eliciting antibodies against the hemagglutinin stalk domain are in development. Typically, these vaccines induce responses that target group 1 or group 2 hemagglutinins with little to no cross-group reactivity and protection. Similarly, the majority of human anti-stalk monoclonal antibodies that have been isolated are directed against group 1 or group 2 hemagglutinins with very few that bind to hemagglutinins of both groups. Here we review what is known about the human humoral immune response to vaccination and infection with H7 subtype influenza viruses on a polyclonal and monoclonal level. It seems that unlike vaccination with H5 hemagglutinin, which induces antibody responses mostly restricted to the group 1 stalk domain, H7 exposure induces both group 2 and cross-group antibody responses. A better understanding of this phenomenon and the underlying mechanisms might help to develop future universal influenza virus vaccine candidates.

关键词: universal influenza virus vaccine     hemagglutinin stalk     H7N9    

Response of bacterial communities to short-term pyrene exposure in red soil

Jingjing PENG, Hong LI, Jianqiang SU, Qiufang ZHANG, Junpeng RUI, Chao CAI

《环境科学与工程前沿(英文)》 2013年 第7卷 第4期   页码 559-567 doi: 10.1007/s11783-013-0501-8

摘要: Pyrene, a representative polycyclic aromatic hydrocarbon (PAH) compound produced mainly from incomplete combustion of fossil fuels, is hazardous to ecosystem health. However, long-term exposure studies did not detect any significant effects of pyrene on soil microorganism. In this study, short-term microcosm experiments were conducted to identify the immediate effect of pyrene on soil bacterial communities. A freshly-collected pristine red soil was spiked with pyrene at 0, 10, 100, 200, and 500 mg·kg and incubated for one day and seven days. The bacterial communities in the incubated soils were analyzed using 16S rRNA sequencing and terminal restriction fragment length polymorphism (T-RFLP) methods. The results revealed high bacterial diversity in both unspiked and pyrene-spiked soils. Only at the highest pyrene-spiking rate of 500 mg·kg , two minor bacteria groups of the identified 14 most abundant bacteria groups were completely suppressed. Short-term exposure to pyrene resulted in dominance of Proteobacteria in soil, followed by Acidobacteria, Firmutes, and Bacteroidetes. Our findings showed that bacterial community structure did respond to the presence of pyrene but recovered rapidly from the perturbation. The intensity of impact and the rate of recovery showed some pyrene dosage-dependent trends. Our results revealed that different levels of pyrene may affect the bacterial community structure by suppressing or selecting certain groups of bacteria. It was also found that the bacterial community was most susceptible to pyrene within one day of the chemical addition.

关键词: pyrene     bacterial communities     terminal restriction fragment length polymorphism     short-term exposure     rank-abundance plots    

Influence of initial curing conditions and exposure environments on chloride migration in concrete using

Wen XUE, Weiliang JIN, Hiroshi YOKOTA,

《结构与土木工程前沿(英文)》 2010年 第4卷 第3期   页码 348-353 doi: 10.1007/s11709-010-0077-3

摘要: To investigate the influence of initial curing conditions and exposure environments on chloride ions’ migration in concrete, the specimens that were cured in different conditions and placed in several marine environments were studied. The amount of chloride ions passing through the specimen’s section was monitored in the accelerated chloride migration test. The effective chloride diffusion coefficients () were calculated from the steady-state on the basis of Nernst-Planck’s equation. The results indicated that the initial curing conditions and the wet-dry interval of external environments have coupling influence on effective diffusion coefficient of chloride ion significantly. reflected the density and pore connectivity of concrete. The co-effects of the initial curing condition and following exposure environment should be taken into account in durability design for concrete structure located in marine environment.

关键词: durability     effective diffusion coefficient     steady-state     migration test    

标题 作者 时间 类型 操作

Long-term exposure to air pollution and cerebrovascular disease: findings from Beijing Health Management

期刊论文

Lung function and air pollution exposure in adults with asthma in Beijing: a 2-year longitudinal panel

期刊论文

Investigating the impact of air pollution on AMI and COPD hospital admissions in the coastal city of

期刊论文

On the potential of iPhone significant location data to characterize individual mobility for air pollution

期刊论文

Same stimuli, different responses: a pilot study assessing air pollution visibility impacts on emotional

期刊论文

Toxic effects of wastewater from various phases of monosodium glutamate production on seed germination and root elongation of crops

LIU Rui, ZHOU Qixing, ZHANG Lanying, GUO Hao

期刊论文

Untargeted metabolomic analysis of pregnant women exposure to perfluorooctanoic acid at different degrees

期刊论文

Ultraviolet exposure enhanced silicon direct bonding

Guanglan LIAO, Xuekun ZHANG, Xiaohui LIN, Canghai MA, Lei NIE, Tielin SHI,

期刊论文

Paternal environmental exposure-induced spermatozoal small noncoding RNA alteration meditates the intergenerational

期刊论文

Study of blood exposure-related mental health illness among clinical nurses

null

期刊论文

Effects of hemin and thermal stress exposure on JWA expression

ZHAO Ming, CHEN Rui, LI Aiping, ZHOU Jianwei

期刊论文

Occupational risk of exposure to methicillin-resistant (MRSA) and the quality of infection hygiene in

期刊论文

Universal influenza virus vaccines: what can we learn from the human immune response following exposure

null

期刊论文

Response of bacterial communities to short-term pyrene exposure in red soil

Jingjing PENG, Hong LI, Jianqiang SU, Qiufang ZHANG, Junpeng RUI, Chao CAI

期刊论文

Influence of initial curing conditions and exposure environments on chloride migration in concrete using

Wen XUE, Weiliang JIN, Hiroshi YOKOTA,

期刊论文