1
|
Su P, He Y, Wang J, Feng Y, Wan Q, Zhang Y, Pang Z. Green separation and decomposition of crystalline silicon photovoltaic module's backsheet by using ethanol. Waste Manag 2024; 179:144-153. [PMID: 38471252 DOI: 10.1016/j.wasman.2024.03.001] [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: 11/05/2023] [Revised: 01/11/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024]
Abstract
The treatment and recycling of discarded crystalline silicon photovoltaic modules (c-Si PV modules) has become a research focus, but few research have paid attention to the standardized treatment of c-Si PV module's fluorinated backsheet. Improper management of fluorinated backsheet can pose ecological and human health risks. Therefore, this study presents a novel method for processing the backsheet. The proposed approach entailed the utilization of ethanol (CH3CH2OH) to separate the backsheet from the PV module. Subsequently, the separated backsheet underwent decomposition using an alkaline ethanol (NaOH-CH3CH2OH) solution. Finally, the backsheet was recovered in the form of terephthalic acid (TPA) with a purity of 97.47 %. This recovered TPA can then serve as a valuable raw material for producing new backsheets, fostering a closed-loop material circulation. Experimental results demonstrate that immersing the PV module in a 75 % CH3CH2OH-H2O solution at a temperature of 343 K for 30 min achieved 100 % separation of the backsheet. Furthermore, subjecting the separated backsheet to a 60 min reaction in an NaOH-CH3CH2OH solution with a temperature of 343 K and a NaOH concentration of 1.0 mol/L achieved complete decomposition. The reaction mechanism was analyzed through characterization methods such as SEM/EDS, NMR, FTIR and XRD. This method is efficient, non-toxic organic reagent-free and environmentally friendly, so it holds significant potential for further development in the field of c-Si PV module recycling.
Collapse
Affiliation(s)
- Pengxin Su
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Yaqun He
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China.
| | - Jie Wang
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Yi Feng
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Qiuyue Wan
- Department of Environmental Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Yuchen Zhang
- School of Foreign Studies, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Zhibo Pang
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| |
Collapse
|
2
|
Pang Z, Korpela R, Vapaatalo H. Local aldosterone release and CYP11B2 expression in response to angiotensin peptides, glucose, and potassium - an ex vivo study on murine colon. J Physiol Pharmacol 2024; 75:185-194. [PMID: 38736265 DOI: 10.26402/jpp.2024.2.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/02/2024] [Accepted: 04/30/2024] [Indexed: 05/14/2024]
Abstract
We have previously described local aldosterone synthesis in mouse colon. In the renin-angiotensin-aldosterone system (RAAS), angiotensin II (Ang II) peptide is the physiological factor which stimulates aldosterone synthesis in the adrenal glands. We have recently demonstrated that Ang II stimulates aldosterone synthesis also in mouse colon. Here, we conducted a 75-min ex vivo incubation of murine colonic tissue and evaluated the effects of three other Ang peptides, Ang I (1 μM), Ang III (0.1 μM) and Ang (1-7) (0.1 μM) on aldosterone synthesis. As a possible mechanism, their effects on tissue levels of the rate-limiting enzyme, aldosterone synthase (CYP11B2) were measured by ELISA and Western blot. Ang III significantly elevated the amount of tissue CYP11B2 protein in colon. The values of released aldosterone in colon tissue incubation were increased over the control in the presence of Ang I, II or III, however, being statistically non-significant. In Western blot analysis, the values of tissue CYP11B2 protein content were elevated by Ang I and II. Ang (1-7) alone in colon did not influence CYP11B2 protein levels in the incubation experiment but showed higher aldosterone release without statistical significance. Ang (1-7) showed an antagonistic effect towards Ang II in release of aldosterone in adrenal gland. An overall estimation of a single peptide (three measured variables), the results were always in an increasing direction. The responses of aldosterone synthesis to high levels of glucose (44 mM) and potassium (18.8 mM) as physiological stimulators in vivo were investigated in the colon incubation. Glucose, equal to four times the concentration of the control buffer in the incubation, showed higher values of aldosterone release in colon than control without statistical significance similarly to the effect seen in adrenal glands. Increasing the concentration of potassium in the incubation buffer exerted no effect on colonic aldosterone production. Intriguingly, no correlation was found between aldosterone release and the tissue CYP11B2 protein content in colon. In summary, the response of colonic aldosterone synthesis to different Ang peptides resembles, but is not identical to, the situation in the adrenal glands.
Collapse
Affiliation(s)
- Z Pang
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland.
| | - R Korpela
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
- Faculty of Medicine, Human Microbiome Research Program, University of Helsinki, Helsinki, Finland
| | - H Vapaatalo
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
| |
Collapse
|
3
|
Wang Y, Hong X, Cao W, Lv J, Yu C, Huang T, Sun D, Liao C, Pang Y, Pang Z, Yu M, Wang H, Wu X, Liu Y, Gao W, Li L. Age effect on the shared etiology of glycemic traits and serum lipids: evidence from a Chinese twin study. J Endocrinol Invest 2024; 47:535-546. [PMID: 37524979 DOI: 10.1007/s40618-023-02164-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 07/24/2023] [Indexed: 08/02/2023]
Abstract
PURPOSE Diabetes and dyslipidemia are among the most common chronic diseases with increasing global disease burdens, and they frequently occur together. The study aimed to investigate differences in the heritability of glycemic traits and serum lipid indicators and differences in overlapping genetic and environmental influences between them across age groups. METHODS This study included 1189 twin pairs from the Chinese National Twin Registry and divided them into three groups: aged ≤ 40, 41-50, and > 50 years old. Univariate and bivariate structural equation models (SEMs) were conducted on glycemic indicators and serum lipid indicators, including blood glucose (GLU), glycated hemoglobin A1c (HbA1c), total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C), in the total sample and three age groups. RESULTS All phenotypes showed moderate to high heritability (0.37-0.64). The heritability of HbA1c demonstrated a downward trend with age (HbA1c: 0.50-0.79), while others remained relatively stable (GLU: 0.55-0.62, TC: 0.58-0.66, TG: 0.50-0.63, LDL-C: 0.24-0.58, HDL-C: 0.31-0.57). The bivariate SEMs demonstrated that GLU and HbA1c were correlated with each serum lipid indicator (0.10-0.17), except HDL-C. Except for HbA1c and LDL-C, as well as HbA1c and HDL-C, differences in genetic correlations underlying glycemic traits and serum lipids between age groups were observed, with the youngest group showing a significantly higher genetic correlation than the oldest group. CONCLUSION Across the whole adulthood, genetic influences were consistently important for GLU, TC, TG, LDL-C and HDL-C, and age may affect the shared genetic influences between glycemic traits and serum lipids. Further studies are needed to elucidate the role of age in the interactions of genes related to glycemic traits and serum lipids.
Collapse
Affiliation(s)
- Y Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - X Hong
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - W Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - J Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - C Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - T Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - D Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - C Liao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Y Pang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Z Pang
- Qingdao Center for Disease Control and Prevention, Qingdao, China
| | - M Yu
- Zhejiang Center for Disease Control and Prevention, Hangzhou, China
| | - H Wang
- Jiangsu Center for Disease Control and Prevention, Nanjing, China
| | - X Wu
- Sichuan Center for Disease Control and Prevention, Chengdu, China
| | - Y Liu
- Heilongjiang Center for Disease Control and Prevention, Harbin, China
| | - W Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China.
| | - L Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China.
| |
Collapse
|
4
|
Yin J, Hu T, Xu LJ, Zhang LP, Ye YL, Pang Z. [The mechanism by which hsa_circRNA_103124 highly expressed in peripheral blood of patients with active Crohn's disease regulates macrophage differentiation, pyroptosis and inflammation]. Zhonghua Yi Xue Za Zhi 2023; 103:3478-3486. [PMID: 37981775 DOI: 10.3760/cma.j.cn112137-20231007-00646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
Objective: To investigate the role and related mechanism of the highly expressed circular RNA molecule 103124 (hsa_circRNA_103124) in macrophage differentiation, pyroptosis and inflammation in peripheral blood mononuclear cells (PBMC) of patients with active Crohn's disease (CD). Methods: Patients with active CD (CD group) admitted to the Affiliated Suzhou Hospital of Nanjing Medical University from April to September 2018 and healthy people (control group) from the physical examination center of the hospital from July to October 2018 were retrospectively selected. The levels of hsa_circRNA_103124 and Toll-like receptor 4 (TLR4) in PBMC of the two groups were detected by real-time quantitative polymerase chain reaction (RT-qPCR). Tohoku hospital pediatrics-1 (THP1) cell line was used as a model for the study of hsa_circRNA_103124 regulating macrophage differentiation. Lentivirus infection was used to construct hsa_circRNA_103124 overexpressed or down-regulated THP1 cells to induce macrophage-like differentiation. According to the expression level of hsa_circRNA_103124, THP1 cell lines were divided into the following four groups: pLC5-ciR was overexpression control group; hsa_circRNA_103124 OE was the overexpression group; ShRNActrl was down-regulated expression control group; hsa_circRNA_103124 ShRNA was the down-regulated expression group. Flow cytometry was used to detect levels cluster of differentiation (CD) 68, CD80, interleukin (IL)-6, tumor necrosis factor α (TNF-α) and reactive oxygen species (ROS). The expression levels of IL-6, TNF-α, IL-1β, TLR4 and myeloid differentiation factor 88 (MyD88) were detected by RT-qPCR. The levels of gasdermin D (GSDMD), IL-18 and NOD-like receptor thermal protein domain associated protein 3 (NLRP3) were determined by immunofluorescence and RT-qPCR. Pearson correlation analysis was used to analyze the correlation between the abundance of hsa_circRNA_103124 and TLR4 expression level or Crohn's disease activity index (CDAI). Results: A total of 50 patients were included in the CD group, including 36 males and 14 females, aged (35±10) (19-64) years. A total of 30 subjects were included in the control group, including 22 males and 8 females, aged (38±9) (24-64) years. hsa_circRNA_103124 [(0.009±0.016) vs (0.003±0.002), P=0.042] and TLR4 [(0.005±0.003) vs (0.001±0.001), P<0.001] were all upregulated in the PBMC of patients in the CD group, compared with the control group. And hsa_circRNA_103124 was positively correlated with TLR4 (r=0.40, P=0.004). hsa_circRNA_103124 level was positively correlated with CDAI (r=0.32, P=0.024). The expression of CD68 (P=0.002) and CD80 (P<0.001) were enhanced. hsa_circRNA_103124 promoted production of ROS and the expression of IL-6, TNF-α, IL-1β, TLR4, MyD88, GSDMD, IL-18 and NLRP3 in macrophage-like M1 differentiated THP1 cells (all P<0.05). Conclusion: High expresion of hsa_circRNA_103124 in PBMC of patients with active CD may promote macrophage M1 differentiation, pyroptosis and inflammation through enhancing the expression of TLR4, MyD88, NLRP3 and GSDMD.
Collapse
Affiliation(s)
- J Yin
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| | - T Hu
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| | - L J Xu
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| | - L P Zhang
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| | - Y L Ye
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| | - Z Pang
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| |
Collapse
|
5
|
Ye YL, Hu T, Xu LJ, Zhang LP, Yin J, Yu Q, Pang Z. [The diagnostic and evaluation value of plasma interleukin 9 in the mucosal healing in patients with inflammatory bowel disease treated with biological agents]. Zhonghua Yi Xue Za Zhi 2023; 103:1483-1489. [PMID: 37198111 DOI: 10.3760/cma.j.cn112137-20221009-02110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Objective: To investigate the diagnostic and evaluation value of plasma interleukin 9 (IL9) in the mucosal healing (MH) in patients with inflammatory bowel disease (IBD) treated with biological agents. Methods: Cohort study. IBD patients (137 cases) treated in the Affiliated Suzhou Hospital to Nanjing Medical University (Suzhou Municipal Hospital) from September 2019 to January 2022 were prospective selected. Each patient was treated with biological agents [Infliximab (IFX, 56 cases), Adalimumab (ADA, 20 cases), Ustekinumab (UST, 18 cases), Vedolizumab (VDZ, 43 cases)]. According to different therapeutic drugs, the IFX, ADA, UST, and VDZ group were divided. Clinical symptoms, inflammatory indicators and imaging examinations etc. were evaluated every 8 weeks, and the degree of MH was evaluated by endoscopy at the 54th week. The expression of plasma IL9 was detected by ELISA after initial enrollment (W 0) and 8 weeks of biological treatment (W 8). Receiver operating characteristic curve (ROC) was used to evaluate the diagnostic efficacy of IL9 for MH. Select the cut off value for the optimal ROC threshold based on the highest value of the Youden index. Spearman's rank correlation was used to analyze the correlation between IL9 and Simple Endoscopic Score for CD (SES-CD) and Mayo Endoscopic Score (MES), so as to evaluate the predictive value of IL9 for MH in IBD patients treated with biologic agents. Results: Among the 137 patients, there were 97 Crohn's disease (CD) patients, 53 males and 44 females, aged (31.6±10.3) years (18-60 years). There were 40 ulcerative colitis (UC) patients, 22 males and 18 females, aged (37.5±14.7) years (18-67 years). Among the CD patients, 42 cases (43.3%) achieved MH on endoscopy at the 54th week, and 60 patients (61.9%) achieved clinical remission. Among the UC patients, 22 cases (55.0%) achieved MH and 30 cases (75.0%) achieved clinical remission. At W 0, the relative expression of IL9 in patients in IBD patients who achieved MH after 54 weeks of biological treatment was lower than that in the non-MH patients [x¯±s, (127.42±34.43) vs (146.82±45.64) ng/L, (113.01±44.88) vs (146.12±48.66) ng/L, respectively, both P<0.05]. At W 8, the relative expression of IL9 in the MH group was lower than that in the non-MH patients (both P<0.05). The relative expression of IL9 in the MH patients after IFX treatment was lower than that in the non-MH group (P<0.05). There was no significant difference among the other groups between MH and non-MH patients (all P>0.05). IL9 at W 8 showed high value in predicting MH in IBD [CD patients: area under curve (AUC)=0.716(95%CI: 0.616-0.817, P<0.001), sensitivity and specificity were 80.77%(95%CI:67.64%-88.45%) and 48.89%(95%CI: 35.53%-64.47%), respectively; UC patients: AUC=0.821, sensitivity and specificity were 77.78% and 72.73%, respectively]. At W 8, the cut off values for CD and UC patients were IL9>80.77 ng/L and IL9>77.78 ng/L, respectively. IL9 was positively correlated with endoscopic MH score parameters [M(Q1,Q3),SES-CD: 3.0(8.5, 18.5); MES: 2.0(1.0, 3.0)] (r=0.55, 0.72, respectively, both P<0.001) at W8. Conclusion: The plasma IL-9 at the week 8 after biological agents treatment can be used to diagnose and evaluate the MH of patients with IBD.
Collapse
Affiliation(s)
- Y L Ye
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - T Hu
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - L J Xu
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - L P Zhang
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - J Yin
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - Q Yu
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - Z Pang
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| |
Collapse
|
6
|
Pang Z, Korpela R, Vapaatalo H. Intestinal aldosterone synthase activity and aldosterone synthesis in mouse. J Physiol Pharmacol 2022; 73. [PMID: 36696240 DOI: 10.26402/jpp.2022.4.03] [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] [Received: 07/16/2022] [Accepted: 08/30/2022] [Indexed: 01/26/2023]
Abstract
Aldosterone is the most important mineralocorticoid hormone regulating water and electrolyte absorption in the distal convoluted tubule of the kidney. Recently, we detected the presence of the whole chain of aldosterone production from the precursor corticosterone, transcription factor liver receptor homologue-1 (LRH-1), the aldosterone synthase enzyme protein (CYP11B2) as well as the gene to the final product aldosterone in murine large intestine. Here, we decided to correlate the amount of this synthase protein with its enzymatic activity in different parts of gastrointestinal tract and also with the aldosterone concentration in the respective tissue. Considering the physiological behavior of the animals in light and dark environment, we measured these variables at four time points - two in the light, the others during darkness. In vitro activity of CYP11B2 was measured as the amount of aldosterone formed from the precursor deoxycorticosterone using enzyme preparations from homogenized intestinal sections. CYP11B2 enzyme activity was higher in the large than in the small intestine. In ileum and colon, the CYP11B2 activity increased in the dark time. The highest aldosterone concentration was detected in the dark in the large intestine. In summary, enzyme activity of CYP11B2 was present in all parts of intestine; the large intestine formed more aldosterone during the darkness. No difference was seen in any of the variables between the early and late light hours.
Collapse
Affiliation(s)
- Z Pang
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland.
| | - R Korpela
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland.,Faculty of Medicine, Human Microbiome Research Program, University of Helsinki, Helsinki, Finland
| | - H Vapaatalo
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
| |
Collapse
|
7
|
Ni S, Bai X, Liang Y, Pang Z, Li L. Blockchain-based traceability system for supply chain: potentials, gaps, applicability and adoption game. ENTERP INF SYST-UK 2022. [DOI: 10.1080/17517575.2022.2086021] [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: 10/18/2022]
Affiliation(s)
- Shiying Ni
- Department of Industrial Engineering, Tsinghua University, Beijing, China
| | - Xiwen Bai
- Department of Industrial Engineering, Tsinghua University, Beijing, China
| | - Yuchen Liang
- Department of Industrial Engineering, Tsinghua University, Beijing, China
| | - Zhibo Pang
- Department of Intelligent Systems, The Royal Institute of Technology (KTH), Stockholm, Sweden
- ABB Corporate Research Sweden, Department of Automation Technology, Stockholm, Sweden
| | - Lefei Li
- Department of Industrial Engineering, Tsinghua University, Beijing, China
| |
Collapse
|
8
|
Lv H, Kong D, Pang G, Wang B, Yu Z, Pang Z, Yang G. GuLiM: A Hybrid Motion Mapping Technique for Teleoperation of Medical Assistive Robot in Combating the COVID-19 Pandemic. IEEE Trans Med Robot Bionics 2022; 4:106-117. [PMID: 35582700 PMCID: PMC8956372 DOI: 10.1109/tmrb.2022.3146621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 01/05/2022] [Accepted: 01/21/2022] [Indexed: 11/21/2022]
Abstract
Driven by the demand to largely mitigate nosocomial infection problems in combating the coronavirus disease 2019 (COVID-19) pandemic, the trend of developing technologies for teleoperation of medical assistive robots is emerging. However, traditional teleoperation of robots requires professional training and sophisticated manipulation, imposing a burden on healthcare workers, taking a long time to deploy, and conflicting the urgent demand for a timely and effective response to the pandemic. This paper presents a novel motion synchronization method enabled by the hybrid mapping technique of hand gesture and upper-limb motion (GuLiM). It tackles a limitation that the existing motion mapping scheme has to be customized according to the kinematic configuration of operators. The operator awakes the robot from any initial pose state without extra calibration procedure, thereby reducing operational complexity and relieving unnecessary pre-training, making it user-friendly for healthcare workers to master teleoperation skills. Experimenting with robotic grasping tasks verifies the outperformance of the proposed GuLiM method compared with the traditional direct mapping method. Moreover, a field investigation of GuLiM illustrates its potential for the teleoperation of medical assistive robots in the isolation ward as the Second Body of healthcare workers for telehealthcare, avoiding exposure of healthcare workers to the COVID-19.
Collapse
Affiliation(s)
- Honghao Lv
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical EngineeringZhejiang University Hangzhou 310027 China
- School of Electrical Engineering and Computer ScienceKTH Royal Institute of Technology 11758 Stockholm Sweden
| | - Depeng Kong
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical EngineeringZhejiang University Hangzhou 310027 China
| | - Gaoyang Pang
- School of Electrical and Information EngineeringThe University of Sydney Sydney NSW 2006 Australia
| | - Baicun Wang
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical EngineeringZhejiang University Hangzhou 310027 China
| | - Zhangwei Yu
- Hangzhou Institute of Advanced Studies, Zhejiang Normal University Hangzhou 321017 China
| | - Zhibo Pang
- Department of Automation TechnologyABB Corporate Research Sweden 72178 Vasteras Sweden
- Department of Intelligent SystemsKTH Royal Institute of Technology 11758 Stockholm Sweden
| | - Geng Yang
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical EngineeringZhejiang University Hangzhou 310027 China
| |
Collapse
|
9
|
Wang Q, Candell R, Liang W, Pang Z. System Error Calibration in Large Datasets of Wireless Channel Sounding for Industrial Applications. IEEE Trans Industr Inform 2022; 3:10.1109/JESTIE.2021.3122839. [PMID: 35024008 PMCID: PMC8752052 DOI: 10.1109/jestie.2021.3122839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In industrial applications, the large comprehensive wireless channel impulse response (CIR) reference dataset, measured by National Institute of Standards and Technology (NIST), has been a useful tool for understanding propagation within factory environments. The NIST CIR reference dataset is obtained using a precision channel sounder instrument where transmitter and receiver are time-synchronized by two rubidium clocks. While the accuracy of the NIST CIRs is much higher than the CIRs measured by general commercial digital receiver, two types of system errors have been discovered within the dataset from the perspective of signal processing. These errors are significant for wireless localization, physical layer security, and related applications. To calibrate the CIR, two channel sounder error calibration methods (CSEC) is proposed: the CSEC based on phase compensation and carrier frequency offset recovery. Our results reveal that the CSEC method can improve the accuracy of the CIR to the accuracy that precise instruments cannot achieve. To demonstrate the consequence of these systemic errors, a case study involving physical layer authentication is investigated showing a marked improvement in authentication accuracy after the systemic errors in the dataset are removed. Moreover, the CSEC method may be used to correct other CIR datasets with similar systemic errors.
Collapse
Affiliation(s)
- Qi Wang
- State Key Laboratory of Robotics and Key Laboratory of Networked Control Systems, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China, and also with the University of Chinese Academy of Sciences, Beijing 100039, China
| | - Richard Candell
- Intelligent Systems Division, National Institute of Standards and Technology, Gaithersburg, MD, 20899 USA
| | - Wei Liang
- State Key Laboratory of Robotics and Key Laboratory of Networked Control Systems, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China, and also with Shenyang Zhongke Allwin Technology Company, Ltd., Shenyang 110179, China
| | - Zhibo Pang
- ABB AB, Corporate Research, Forskargränd 7, 72178, Västerås, Västmanland Sweden
| |
Collapse
|
10
|
Liu Y, Mousavi S, Pang Z, Ni Z, Karlsson M, Gong S. Plant Factory: A New Playground of Industrial Communication and Computing. Sensors (Basel) 2021; 22:147. [PMID: 35009690 PMCID: PMC8749569 DOI: 10.3390/s22010147] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/17/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
Plant Factory is a newly emerging industry aiming at transforming crop production to an unprecedented model by leveraging industrial automation and informatics. However, today's plant factory and vertical farming industry are still in a primitive phase, and existing industrial cyber-physical systems are not optimal for a plant factory due to diverse application requirements on communication, computing and artificial intelligence. In this paper, we review use cases and requirements for future plant factories, and then dedicate an architecture that incorporates the communication and computing domains to plant factories with a preliminary proof-of-concept, which has been validated by both academic and industrial practices. We also call for a holistic co-design methodology that crosses the boundaries of communication, computing and artificial intelligence disciplines to guarantee the completeness of solution design and to speed up engineering implementation of plant factories and other industries sharing the same demands.
Collapse
Affiliation(s)
- Yu Liu
- Department of Science and Technology, Campus Norrköping, Linköping University, 60221 Norrköping, Sweden; (Y.L.); (Z.N.); (M.K.)
| | | | - Zhibo Pang
- ABB Corporate Research, 72226 Västerås, Sweden;
| | - Zhongjun Ni
- Department of Science and Technology, Campus Norrköping, Linköping University, 60221 Norrköping, Sweden; (Y.L.); (Z.N.); (M.K.)
| | - Magnus Karlsson
- Department of Science and Technology, Campus Norrköping, Linköping University, 60221 Norrköping, Sweden; (Y.L.); (Z.N.); (M.K.)
| | - Shaofang Gong
- Department of Science and Technology, Campus Norrköping, Linköping University, 60221 Norrköping, Sweden; (Y.L.); (Z.N.); (M.K.)
| |
Collapse
|
11
|
Launonen H, Pang Z, Linden J, Siltari A, Korpela R, Vapaatalo H. Evidence for local aldosterone synthesis in the large intestine of the mouse. J Physiol Pharmacol 2021; 72. [PMID: 35288482 DOI: 10.26402/jpp.2021.5.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/30/2021] [Indexed: 06/14/2023]
Abstract
Aldosterone, the main physiological mineralocorticoid, regulates sodium and potassium balance in the distal convoluted tubule of the kidney. Aldosterone is synthesized from cholesterol in the adrenal cortex in a sequence of enzymatic steps. Recently however, several tissues or cells e.g. brain, heart, blood vessels, kidneys and adipocytes have been shown to possess capability to produce aldosterone locally, and there is some evidence that this occurs also in the intestine. Colon expresses mineralocorticoid receptors and is capable of synthesizing corticosterone, the second last intermediate on the route to aldosterone from cholesterol. Based on such reports and on our preliminary finding, we hypothesized that aldosterone could be synthesized locally in the intestine and therefore we measured the concentration of aldosterone as well as the protein and gene expression of aldosterone synthase (CYP11B2), an enzyme responsible on aldosterone synthesis, from the distal section of the gastrointestinal tract of 10-week-old Balb/c male mice. It is known that sodium deficiency regulates aldosterone synthesis in adrenal glands, therefore we fed the mice with low (0.01%), normal (0.2%) and high-sodium (1.6%) diets for 14 days. Here we report that, aldosterone was detected in colon and cecum samples. Measurable amounts of CYP11B2 protein were detected by Western blot and Elisa analysis from both intestinal tissues. We detected CYP11B2 gene expression from the large intestine along with immunohistochemical findings of CYP11B2 in colonic wall. Sodium depletion increased the aldosterone concentration in plasma compared to control and high-sodium groups as well as in the intestine compared to mice fed with the high-sodium diet. To summarize, this study further supports the presence of aldosterone and the enzyme needed to produce this mineralocorticoid in the murine large intestine.
Collapse
Affiliation(s)
- H Launonen
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
| | - Z Pang
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
| | - J Linden
- Faculty of Veterinary Medicine, Department of Veterinary Biosciences and Finnish Centre for Laboratory Animal Pathology (FCLAP), Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - A Siltari
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - R Korpela
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
- Faculty of Medicine, Human Microbiome Research Program, University of Helsinki, Helsinki, Finland
| | - H Vapaatalo
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland.
| |
Collapse
|
12
|
Zhang JS, Xu HY, Fang JC, Yin BZ, Wang BB, Pang Z, Xia GJ. Integrated microRNA-mRNA analysis reveals the roles of microRNAs in the muscle fat metabolism of Yanbian cattle. Anim Genet 2021; 52:598-607. [PMID: 34350996 DOI: 10.1111/age.13126] [Citation(s) in RCA: 4] [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: 07/14/2021] [Indexed: 12/16/2022]
Abstract
Fat deposition is an important economic trait in farm animals. However, it is difficult to genetically improve intramuscular fat deposition via trait-based cattle breeding. The main objectives of this study were to analyze the factors about beef flavor, and to detect functional microRNA (miRNA, miR) associated with intramuscular fat deposition in Yanbian cattle. Longissimus dorsi samples from six steers were separated into high- and low-fat groups (n = 3 each) based on the marbling score, and transcriptomic analysis was performed using miRNA sequencing. A total of 33 miRNAs and 38 genes were found to be differentially expressed in the high- and low-fat groups. Quantitative real-time polymerase chain reaction was performed to validate the sequencing results. Integrated miRNA-mRNA analysis revealed that miRNA-associated target genes were primarily associated with skeletal muscle development. However, some of the miRNAs (miR-424 etc.) and genes (ATF3 etc.) were also associated with fat metabolism. A targeted relationship between miR-22-3p and the WFIKKN2 gene and its involvement in adipocyte differentiation were confirmed experimentally. The study findings may provide potential candidate molecular targets for the selection of cattle with improved meat quality.
Collapse
Affiliation(s)
- J S Zhang
- College of Agriculture, Yanbian University, Yanji, 133002, China
| | - H Y Xu
- College of Agriculture, Yanbian University, Yanji, 133002, China
| | - J C Fang
- Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, Japan
| | - B Z Yin
- College of Agriculture, Yanbian University, Yanji, 133002, China
| | - B B Wang
- College of Agriculture, Yanbian University, Yanji, 133002, China
| | - Z Pang
- College of Agriculture, Yanbian University, Yanji, 133002, China
| | - G J Xia
- College of Agriculture, Yanbian University, Yanji, 133002, China.,Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China
| |
Collapse
|
13
|
Gbouna ZV, Pang G, Yang G, Hou Z, Lv H, Yu Z, Pang Z. User-Interactive Robot Skin with Large-Area Scalability for Safer and Natural Human-Robot Collaboration in Future Telehealthcare. IEEE J Biomed Health Inform 2021; 25:4276-4288. [PMID: 34018941 DOI: 10.1109/jbhi.2021.3082563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
With the fourth revolution of healthcare, i.e., Healthcare 4.0, collaborative robotics is spilling out from traditional manufacturing and will blend into human living or working environments to deliver care services, especially telehealthcare. Because of the frequent and seamless interaction between robots and care recipients, it poses several challenges that require careful consideration: 1) the ability of the human to collaborate with the robots in a natural manner; and 2) the safety of the human collaborating with the robot. In this regard, we have proposed a proximity sensing solution based on the self-capacitive technology to provide an extended sense of touch for collaborative robots, allowing approach and contact measurement to enhance safe and natural human-robot collaboration. The modular design of our solution enables it to scale up to form a large-area sensing system. The sensing solution is proposed to work in two operation modes: the interaction mode and the safety mode. In the interaction mode, utilizing the ability of the sensor to localize the point of action, gesture command is used for robot manipulation. In the safety mode, the sensor enables the robot to actively avoid obstacles.
Collapse
|
14
|
Yang H, Song Y, Huang Z, Qian J, Pang Z, Ge J. Platelet membrane-coated nanoparticles target sclerotic aortic valves in ApoE−/− mice by multiple binding mechanisms under pathological shear stress. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1863] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Aortic valve disease is the most common valvular heart disease leading to valve replacement. The efficacy of pharmacological therapy for aortic valve disease is limited by the high mechanical stress at the aortic valves impairing the binding rate. We aimed to identify nanoparticle coating with entire platelet membranes to fully mimic their inherent multiple adhesion mechanisms and target the sclerotic aortic valve of apolipoprotein E-deficient (ApoE−/−) mice based on their multiple sites binding capacity under high shear stress.
Methods
Considering the potent interaction of platelet membrane glycoproteins with components present in sclerotic aortic valves, platelet membrane-coated nanoparticles (PNPs) were synthetized and the binding capacity under high shear stress was evaluated in vitro and in vivo.
Results
Compared with PNPs bound intensity in the static station, 161%, 59%, and 39% of attached PNPs remained adherent on VWF-, collagen-, and fibrin-coated surfaces under shear stress of 25dyn/cm2 respectively. PNPs demonstrated effectively adhering to von Willebrand factor, collagen and fibrin under shear stresses in vitro. In an aortic valve disease model established in ApoE−/− mice, PNPs group exhibited significant increase of accumulation in the aortic valves compared with PBS and control NP group. PNPs displayed high degrees of proximity or co-localization with vWF, collagen and fibrin, which exhibited good targeting to sclerotic aortic valves by mimicking platelet multiple adhesive mechanisms.
Conclusion
PNPs could provide a promising platform for the molecular diagnosis and targeting treatment of aortic valve disease.
Targeting combination
Funding Acknowledgement
Type of funding source: Foundation. Main funding source(s): National Natural Science Foundation of China
Collapse
Affiliation(s)
- H Yang
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Y Song
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Z Huang
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - J Qian
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Z Pang
- Fudan University, School of Pharmacy, Shanghai, China
| | - J Ge
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| |
Collapse
|
15
|
Duan Y, Chen J, Pang Z, Ye X, Zhang C, Hu H, Xie J. Antifungal mechanism of Streptomyces ma. FS-4 on fusarium wilt of banana. J Appl Microbiol 2020; 130:196-207. [PMID: 32654413 DOI: 10.1111/jam.14784] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 04/05/2020] [Revised: 06/15/2020] [Accepted: 07/03/2020] [Indexed: 12/24/2022]
Abstract
AIM Research on prevention and cure of banana wilt is important to ensure the healthy development of the banana industry. In this study, antifungal mechanism of Streptomyces ma. FS-4 on fusarium wilt of banana was investigated. METHODS AND RESULTS The physiological strain of banana fusarium pathogen Fusarium oxysporum f. sp. cubense Race 4 (FOC.4) was used as the target fungus, and the antifungal mechanism of the crude extract of Streptomyces ma. FS-4 was investigated. Eighteen different compounds identified by gas chromatography-mass spectrometry were composed of aldehydes, methyl, hydrocarbons, amides, esters and acids. FS-4 significantly inhibited the spore germination of the target fungi, with an EC50 of 22·78 μg ml-1 . After treatment with 100 μg ml-1 FS-4 crude extract, the N-acetylglucosamine content in the mycelium increased 1·95-fold. However, the extract had no significant effect on β-1,3-glucanase. At the FS-4 crude extract dose of 100 μg ml-1 , the total sugar and protein contents decreased by 28·6 and 29·1% respectively, and the fat content was 41·3%. FS-4 significantly inhibited the activity of the mitochondrial complex III of Foc4, which was reduced by 52·45%. Moreover FS-4 reduced the activity of succinate dehydrogenase, a key enzyme in the Krebs cycle, by 60·2%. However, FS-4 had no significant effect on malate dehydrogenase. The membrane potential on the mitochondrial inner membrane was significantly reduced at the test concentration of 100 μg ml-1 . ROS gradually accumulated in the Foc4 hypha, and the burst was 3·97 times higher than the control. CONCLUSIONS This study demonstrated that the antifungal mechanism of Streptomyces ma. FS-4 against Foc4 includes the destruction of the plasma membrane and mitochondrial dysfunction and finally induction of cell apoptosis. SIGNIFICANCE AND IMPACT OF THE STUDY These results may indicate the prevention and control of banana wilt, which is of great significance to the healthy development of banana industry system.
Collapse
Affiliation(s)
- Y Duan
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang, China
| | - J Chen
- College of Food Science and Technology, Hainan University, Haikou, China
| | - Z Pang
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang, China
| | - X Ye
- College of Food Science and Technology, Hainan University, Haikou, China
| | - C Zhang
- College of Food Science and Technology, Hainan University, Haikou, China
| | - H Hu
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang, China
| | - J Xie
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang, China
| |
Collapse
|
16
|
Lv H, Yang G, Zhou H, Huang X, Yang H, Pang Z. Teleoperation of Collaborative Robot for Remote Dementia Care in Home Environments. IEEE J Transl Eng Health Med 2020; 8:1400510. [PMID: 32617197 PMCID: PMC7326153 DOI: 10.1109/jtehm.2020.3002384] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 04/24/2020] [Accepted: 05/23/2020] [Indexed: 01/18/2023]
Abstract
As a senile chronic, progressive and currently incurable disease, dementia has an enormous impact on society and life quality of the elderly. The development of teleoperation technology has changed the traditional way of care delivery and brought a variety of novel applications for dementia care. In this paper, a telerobotic system is presented which gives the caregivers the capability of assisting dementia elderly remotely. The proposed system is composed of a dual-arm collaborative robot (YuMi) and a wearable motion capture device. The communication architecture is achieved by the robot operation system (ROS). The position-orientation data of the operator's hand are obtained and used to control the YuMi robot. Besides, a path-constrained mapping method is designed for motion trajectory tracking between the robot and the operator in the progress of teleoperation. Meanwhile, corresponding experiments are conducted to verify the performance of the trajectory tracking using the path-constrained mapping method. Results show that the position tracking deviation between the trajectory of the operator and the robot measured by dynamic time warping distance is 1.05 mm at the sampling frequency of 7.5 Hz. Moreover, the practicability of the proposed system was verified by teleoperating the YuMi robot to pick up a medicine bottle and further demonstrated by assisting an elderly woman in picking up a cup remotely. The proposed telerobotic system has potential utility for improving the life quality of dementia elderly and the care effect of their caregivers.
Collapse
Affiliation(s)
- Honghao Lv
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical EngineeringZhejiang UniversityHangzhou310027China
| | - Geng Yang
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical EngineeringZhejiang UniversityHangzhou310027China
| | - Huiying Zhou
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical EngineeringZhejiang UniversityHangzhou310027China
| | - Xiaoyan Huang
- College of Electrical EngineeringZhejiang UniversityHangzhou310027China
| | - Huayong Yang
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical EngineeringZhejiang UniversityHangzhou310027China
| | - Zhibo Pang
- ABB Corporate Research72178VästeråsSweden
| |
Collapse
|
17
|
Yang G, Pang Z, Jamal Deen M, Dong M, Zhang YT, Lovell N, Rahmani AM. Homecare Robotic Systems for Healthcare 4.0: Visions and Enabling Technologies. IEEE J Biomed Health Inform 2020; 24:2535-2549. [PMID: 32340971 DOI: 10.1109/jbhi.2020.2990529] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Powered by the technologies that have originated from manufacturing, the fourth revolution of healthcare technologies is happening (Healthcare 4.0). As an example of such revolution, new generation homecare robotic systems (HRS) based on the cyber-physical systems (CPS) with higher speed and more intelligent execution are emerging. In this article, the new visions and features of the CPS-based HRS are proposed. The latest progress in related enabling technologies is reviewed, including artificial intelligence, sensing fundamentals, materials and machines, cloud computing and communication, as well as motion capture and mapping. Finally, the future perspectives of the CPS-based HRS and the technical challenges faced in each technical area are discussed.
Collapse
|
18
|
Zhang T, Shao Y, Wu Y, Pang Z, Liu G. Multiple Vowels Repair Based on Pitch Extraction and Line Spectrum Pair Feature for Voice Disorder. IEEE J Biomed Health Inform 2020; 24:1940-1951. [PMID: 32149701 DOI: 10.1109/jbhi.2020.2978103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Individuals, such as voice-related professionals, elderly people and smokers, are increasingly suffering from voice disorder, which implies the importance of pathological voice repair. Previous work on pathological voice repair only concerned about sustained vowel /a/, but multiple vowels repair is still challenging due to the unstable extraction of pitch and the unsatisfactory reconstruction of formant. In this paper, a multiple vowels repair based on pitch extraction and Line Spectrum Pair feature for voice disorder is proposed, which broadened the research subjects of voice repair from only single vowel /a/ to multiple vowels /a/, /i/ and /u/ and achieved the repair of these vowels successfully. Considering deep neural network as a classifier, a voice recognition is performed to classify the normal and pathological voices. Wavelet Transform and Hilbert-Huang Transform are applied for pitch extraction. Based on Line Spectrum Pair (LSP) feature, the formant is reconstructed. The final repaired voice is obtained by synthesizing the pitch and the formant. The proposed method is validated on Saarbrücken Voice Database (SVD) database. The achieved improvements of three metrics, Segmental Signal-to-Noise Ratio, LSP distance measure and Mel cepstral distance measure, are respectively 45.87%, 50.37% and 15.56%. Besides, an intuitive analysis based on spectrogram has been done and a prominent repair effect has been achieved.
Collapse
|
19
|
Heng W, Pang G, Xu F, Huang X, Pang Z, Yang G. Flexible Insole Sensors with Stably Connected Electrodes for Gait Phase Detection. Sensors (Basel) 2019; 19:s19235197. [PMID: 31783618 PMCID: PMC6928953 DOI: 10.3390/s19235197] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/19/2019] [Accepted: 11/21/2019] [Indexed: 11/16/2022]
Abstract
Gait analysis is an important assessment tool for analyzing vital signals collected from individuals and for providing physical information of the human body, and it is emerging in a diverse range of application scenarios, such as disease diagnosis, fall prevention, rehabilitation, and human–robot interaction. Herein, a kind of surface processed conductive rubber was designed and investigated to develop a pressure-sensitive insole to monitor planar pressure in a real-time manner. Due to a novel surface processing method, the pressure sensor was characterized by stable contact resistance, simple manufacturing, and high mechanical durability. In the experiments, it was demonstrated that the developed pressure sensors were easily assembled with the inkjet-printed electrodes and a flexible substrate as a pressure-sensitive insole while maintaining good sensing performance. Moreover, resistive signals were wirelessly transmitted to computers in real time. By analyzing sampled resistive data combined with the gait information monitored by a visual-based reference system based on machine learning method (k-Nearest Neighbor algorithm), the corresponding relationship between plantar pressure distribution and lower limb joint angles was obtained. Finally, the experimental validation of the ability to accurately divide gait into several phases was conducted, illustrating the potential application of the developed device in healthcare and robotics.
Collapse
Affiliation(s)
- Wenzheng Heng
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China; (W.H.); (G.P.)
| | - Gaoyang Pang
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China; (W.H.); (G.P.)
| | - Feihong Xu
- Institute of Mechanical Manufacturing Technology, China Academy of Engineering Physics, Mianyang 621900, China;
| | - Xiaoyan Huang
- College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China;
| | - Zhibo Pang
- ABB Corporate Research Sweden, 72178 Vasteras, Sweden;
| | - Geng Yang
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China; (W.H.); (G.P.)
- Correspondence:
| |
Collapse
|
20
|
Zhou H, Yang G, Lv H, Huang X, Yang H, Pang Z. IoT-Enabled Dual-Arm Motion Capture and Mapping for Telerobotics in Home Care. IEEE J Biomed Health Inform 2019; 24:1541-1549. [PMID: 31751288 DOI: 10.1109/jbhi.2019.2953885] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
With the paradigm shift from hospital-centric healthcare to home-centric healthcare in Healthcare 4.0, healthcare robotics has become one of the fastest growing fields of robotics. The combination of robot capabilities with human intelligence, for example, telerobotics for home care, is gradually showing promising potentials. In this paper, the Home-TeleBot system, a generalized IoT-enabled telerobotic architecture designed to support home-centric healthcare system, is proposed. In particular, the implementation of it is realized by integrating human-motion-capture subsystem with robot-control subsystem. The dual-arm cooperative robot, YuMi, imitates human motion captured by a set of wearable inertial motion capture devices to complete tasks. The proposed approach using workspace mapping and path planning of robot manipulators, facilitates telerobot to execute tasks in a natural and human-like way. Based on the constant of proportionality calculated by comparing the human original workspace with the robot original workspace, the workspace mapping is achieved by making assumptions of the distance between end-effectors (human hands, robot's grippers) and shoulders. Additionally, robot manipulators' path is planned by setting virtual obstacles to constrain robot motion, which aims to improve the performance of robot's human-like motion. As a specific example of application, we apply the proposed architecture to a fetching task based on dual-arm motion capture and mapping for telerobotics in home care.
Collapse
|
21
|
Gao W, Cao W, Lv J, Yu C, Wu T, Wang S, Meng L, Wang D, Wang Z, Pang Z, Yu M, Wang H, Wu X, Dong Z, Wu F, Jiang G, Wang X, Liu Y, Deng J, Lu L, Li L. The Chinese National Twin Registry: a 'gold mine' for scientific research. J Intern Med 2019; 286:299-308. [PMID: 31270876 DOI: 10.1111/joim.12926] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The Chinese National Twin Registry (CNTR) currently includes data from 61 566 twin pair from 11 provinces or cities in China. Of these, 31 705, 15 060 and 13 531 pairs are monozygotic, same-sex dizygotic and opposite-sex dizygotic pairs, respectively, determined by opposite sex or intrapair similarity. Since its establishment in 2001, the CNTR has provided an important resource for analysing genetic and environmental influences on chronic diseases especially cardiovascular diseases. Recently, the CNTR has focused on collecting biologic specimens from disease-concordant or disease-discordant twin pairs or from twin pairs reared apart. More than 8000 pairs of these twins have been registered, and blood samples have been collected from more than 1500 pairs. In this review, we summarize the main findings from univariate and multivariate genetic effects analyses, gene-environment interaction studies, omics studies exploring DNA methylation and metabolomic markers associated with phenotypes. There remains further scope for CNTR research and data mining. The plan for future development of the CNTR is described. The CNTR welcomes worldwide collaboration.
Collapse
Affiliation(s)
- W Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - W Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - J Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - C Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - T Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - S Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - L Meng
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - D Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Z Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Z Pang
- Qingdao Center for Disease Control and Prevention, Qingdao, China
| | - M Yu
- Zhejiang Center for Disease Control and Prevention, Hangzhou, China
| | - H Wang
- Jiangsu Center for Disease Control and Prevention, Nanjing, China
| | - X Wu
- Sichuan Center for Disease Control and Prevention, Chengdu, China
| | - Z Dong
- Beijing Center for Disease Control and Prevention, Beijing, China
| | - F Wu
- Shanghai Center for Disease Control and Prevention, Shanghai, China
| | - G Jiang
- Tianjin Center for Disease Control and Prevention, Tianjin, China
| | - X Wang
- Qinghai Center for Disease Control and Prevention, Xining, China
| | - Y Liu
- Heilongjiang Agricultural Center for Disease Control and Prevention, Harbin, China
| | - J Deng
- Handan Center for Disease Control and Prevention, Handan, China
| | - L Lu
- Yunnan Center for Disease Control and Prevention, Kunming, China
| | - L Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| |
Collapse
|
22
|
Luo Q, Pang Z, Liu C, Liu X. Hepatobiliary and Pancreatic: Spontaneous hepatic hemorrhage caused by Ehlers-Danlos syndrome. J Gastroenterol Hepatol 2019; 34:10. [PMID: 29888804 DOI: 10.1111/jgh.14278] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 04/27/2018] [Indexed: 12/09/2022]
Affiliation(s)
- Q Luo
- Department of General Surgery, Second Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Z Pang
- Department of General Surgery, Second Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - C Liu
- Department of General Surgery, Second Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - X Liu
- Department of General Surgery, Second Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| |
Collapse
|
23
|
Yang G, Pang G, Pang Z, Gu Y, Mantysalo M, Yang H. Non-Invasive Flexible and Stretchable Wearable Sensors With Nano-Based Enhancement for Chronic Disease Care. IEEE Rev Biomed Eng 2018; 12:34-71. [PMID: 30571646 DOI: 10.1109/rbme.2018.2887301] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Advances in flexible and stretchable electronics, functional nanomaterials, and micro/nano manufacturing have been made in recent years. These advances have accelerated the development of wearable sensors. Wearable sensors, with excellent flexibility, stretchability, durability, and sensitivity, have attractive application prospects in the next generation of personal devices for chronic disease care. Flexible and stretchable wearable sensors play an important role in endowing chronic disease care systems with the capability of long-term and real-time tracking of biomedical signals. These signals are closely associated with human body chronic conditions, such as heart rate, wrist/neck pulse, blood pressure, body temperature, and biofluids information. Monitoring these signals with wearable sensors provides a convenient and non-invasive way for chronic disease diagnoses and health monitoring. In this review, the applications of wearable sensors in chronic disease care are introduced. In addition, this review exploits a comprehensive investigation of requirements for flexibility and stretchability, and methods of nano-based enhancement. Furthermore, recent progress in wearable sensors-including pressure, strain, electrophysiological, electrochemical, temperature, and multifunctional sensors-is presented. Finally, opening research challenges and future directions of flexible and stretchable sensors are discussed.
Collapse
|
24
|
Affiliation(s)
- Yushan Li
- Department of Industrial Engineering, Tsinghua University, Beijing, China
| | - Guangzhi Zhang
- Department of Industrial Engineering, Tsinghua University, Beijing, China
| | - Zhibo Pang
- ABB Corporate Research, Automation Networks, Västerås, Sweden
| | - Lefei Li
- Department of Industrial Engineering, Tsinghua University, Beijing, China
| |
Collapse
|
25
|
Pang Z, Yuan H, Zhang YT, Packirisamy M. Guest Editorial Health Engineering Driven by the Industry 4.0 for Aging Society. IEEE J Biomed Health Inform 2018. [DOI: 10.1109/jbhi.2018.2874081] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
26
|
Affiliation(s)
- Fengming Cui
- Department of Industrial Engineering, Tsinghua University, Beijing, China
| | - Liang Ma
- Department of Industrial Engineering, Tsinghua University, Beijing, China
| | - Guofeng Hou
- Planning Department of Nursing Home Demonstration Base, Chendu, Sichuan Province, China
| | - Zhibo Pang
- ABB Corporate Research, Automation Networks, Västeras, Sweden
| | - Yonghong Hou
- School of Electrical and Information Engineering, Tianjin university, Tianjin, China
| | - Lefei Li
- Department of Industrial Engineering, Tsinghua University, Beijing, China
| |
Collapse
|
27
|
Ye YL, Pang Z, Gu W, Zheng JJ. [Expression of microRNA-155 in inflammatory bowel disease and its clinical significance]. Zhonghua Yi Xue Za Zhi 2018; 97:3716-3719. [PMID: 29325325 DOI: 10.3760/cma.j.issn.0376-2491.2017.47.007] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the expression of microRNA-155 in colonic mucosa and peripheral blood in patients with inflammatory bowel disease(IBD), and to examine the clinical value and significance of microRNA-155 in the diagnosis of IBD. Methods: Quatitative reverse-transcription PCR was performed to detect the expression of microRNA-155 in 20 patients with Crohn disease(CD), 21 patients with ulcerative colitis (UC), 18 patients with IBD type unclassified(IBDU), 25 healthy people(control group), 12 patients with infection colitis and 19 patients with ischemia colitis.Receiver operating characteristic (ROC) curve was performed to analyze the clincal value of microRNA-155 in diagnosis of IBD. Results: The expression of microRNA-155 in colonic mucosa in CD, UC and IBDU group was significantly higher than that in control group(P<0.05). MicroRNA-155 expression was also significantly higher in UC group in comparison to CD group (35.4±3.0 vs 18.6±5.9, P<0.01), IBDU group in comparison to CD group (23.0±3.7 vs 18.6±5.9, P<0.05) and UC group in comparison to IBDU group (35.4±3.0 vs 23.0±3.7, P<0.01). The plasma level of microRNA-155 in UC group (55.6±2.5) and IBDU group (48.1±6.2) was significantly higher than that in control group(P<0.05), while no significant difference in CD group was observed when compared with control group(P>0.05). ROC curve shows an AUC of 0.83 and 95%CI of 0.679-0.986 of microRNA-155 expression in colonic mucosa.The sensitivity and specificity of microRNA-155 expression in colonic mucosa in diagnosis of IBD was 68.4% and 78.6%, respectively. Conclusions: MicroRNA-155 showed high expression in colonic mucosa and peripheral blood in patients with IBD.MicroRNA-155 shows promise as a biomarker in diagnosis of IBD.Furthermore, the aberrant expression indicates that microRNA-155 may be involved in pathogenesis and progression of IBD.
Collapse
Affiliation(s)
- Y L Ye
- Department of Gastroenterology, Nanjing Medical University Affiliated Suzhou Hospital, Suzhou 215008, China
| | | | | | | |
Collapse
|
28
|
Yang G, Deng J, Pang G, Zhang H, Li J, Deng B, Pang Z, Xu J, Jiang M, Liljeberg P, Xie H, Yang H. An IoT-Enabled Stroke Rehabilitation System Based on Smart Wearable Armband and Machine Learning. IEEE J Transl Eng Health Med 2018; 6:2100510. [PMID: 29805919 PMCID: PMC5957264 DOI: 10.1109/jtehm.2018.2822681] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [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: 11/29/2017] [Revised: 02/12/2018] [Accepted: 03/16/2018] [Indexed: 11/16/2022]
Abstract
Surface electromyography signal plays an important role in hand function recovery training. In this paper, an IoT-enabled stroke rehabilitation system was introduced which was based on a smart wearable armband (SWA), machine learning (ML) algorithms, and a 3-D printed dexterous robot hand. User comfort is one of the key issues which should be addressed for wearable devices. The SWA was developed by integrating a low-power and tiny-sized IoT sensing device with textile electrodes, which can measure, pre-process, and wirelessly transmit bio-potential signals. By evenly distributing surface electrodes over user’s forearm, drawbacks of classification accuracy poor performance can be mitigated. A new method was put forward to find the optimal feature set. ML algorithms were leveraged to analyze and discriminate features of different hand movements, and their performances were appraised by classification complexity estimating algorithms and principal components analysis. According to the verification results, all nine gestures can be successfully identified with an average accuracy up to 96.20%. In addition, a 3-D printed five-finger robot hand was implemented for hand rehabilitation training purpose. Correspondingly, user’s hand movement intentions were extracted and converted into a series of commands which were used to drive motors assembled inside the dexterous robot hand. As a result, the dexterous robot hand can mimic the user’s gesture in a real-time manner, which shows the proposed system can be used as a training tool to facilitate rehabilitation process for the patients after stroke.
Collapse
Affiliation(s)
- Geng Yang
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical EngineeringZhejiang UniversityHangzhou310058China
| | - Jia Deng
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical EngineeringZhejiang UniversityHangzhou310058China
| | - Gaoyang Pang
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical EngineeringZhejiang UniversityHangzhou310058China
| | - Hao Zhang
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical EngineeringZhejiang UniversityHangzhou310058China
| | - Jiayi Li
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical EngineeringZhejiang UniversityHangzhou310058China
| | - Bin Deng
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical EngineeringZhejiang UniversityHangzhou310058China
| | - Zhibo Pang
- ABB Corporate Research721 78VästeråsSweden
| | - Juan Xu
- Department of GeriatricsThe 117th hospital of PLAHangzhou310013China
| | - Mingzhe Jiang
- Department of Future TechnologiesUniversity of Turku20500TurkuFinland
| | - Pasi Liljeberg
- Department of Future TechnologiesUniversity of Turku20500TurkuFinland
| | - Haibo Xie
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical EngineeringZhejiang UniversityHangzhou310058China
| | - Huayong Yang
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical EngineeringZhejiang UniversityHangzhou310058China
| |
Collapse
|
29
|
Jelenkovic A, Yokoyama Y, Sund R, Hur YM, Harris JR, Brandt I, Nilsen TS, Ooki S, Ullemar V, Almqvist C, Magnusson PKE, Saudino KJ, Stazi MA, Fagnani C, Brescianini S, Nelson TL, Whitfield KE, Knafo-Noam A, Mankuta D, Abramson L, Cutler TL, Hopper JL, Llewellyn CH, Fisher A, Corley RP, Huibregtse BM, Derom CA, Vlietinck RF, Bjerregaard-Andersen M, Beck-Nielsen H, Sodemann M, Krueger RF, McGue M, Pahlen S, Alexandra Burt S, Klump KL, Dubois L, Boivin M, Brendgen M, Dionne G, Vitaro F, Willemsen G, Bartels M, van Beijsterveld CEM, Craig JM, Saffery R, Rasmussen F, Tynelius P, Heikkilä K, Pietiläinen KH, Bayasgalan G, Narandalai D, Haworth CMA, Plomin R, Ji F, Ning F, Pang Z, Rebato E, Tarnoki AD, Tarnoki DL, Kim J, Lee J, Lee S, Sung J, Loos RJF, Boomsma DI, Sørensen TIA, Kaprio J, Silventoinen K. Associations between birth size and later height from infancy through adulthood: An individual based pooled analysis of 28 twin cohorts participating in the CODATwins project. Early Hum Dev 2018; 120:53-60. [PMID: 29656171 PMCID: PMC6532975 DOI: 10.1016/j.earlhumdev.2018.04.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 04/06/2018] [Accepted: 04/07/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND There is evidence that birth size is positively associated with height in later life, but it remains unclear whether this is explained by genetic factors or the intrauterine environment. AIM To analyze the associations of birth weight, length and ponderal index with height from infancy through adulthood within mono- and dizygotic twin pairs, which provides insights into the role of genetic and environmental individual-specific factors. METHODS This study is based on the data from 28 twin cohorts in 17 countries. The pooled data included 41,852 complete twin pairs (55% monozygotic and 45% same-sex dizygotic) with information on birth weight and a total of 112,409 paired height measurements at ages ranging from 1 to 69 years. Birth length was available for 19,881 complete twin pairs, with a total of 72,692 paired height measurements. The association between birth size and later height was analyzed at both the individual and within-pair level by linear regression analyses. RESULTS Within twin pairs, regression coefficients showed that a 1-kg increase in birth weight and a 1-cm increase in birth length were associated with 1.14-4.25 cm and 0.18-0.90 cm taller height, respectively. The magnitude of the associations was generally greater within dizygotic than within monozygotic twin pairs, and this difference between zygosities was more pronounced for birth length. CONCLUSION Both genetic and individual-specific environmental factors play a role in the association between birth size and later height from infancy to adulthood, with a larger role for genetics in the association with birth length than with birth weight.
Collapse
Affiliation(s)
- A Jelenkovic
- Department of Social Research, University of Helsinki, Helsinki, Finland, Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country UPV/EHU, Leioa, Spain
| | - Y Yokoyama
- Department of Public Health Nursing, Osaka City University, Osaka, Japan
| | - R Sund
- Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
| | - YM Hur
- Department of Education, Mokpo National University, Jeonnam, South Korea
| | - JR Harris
- Norwegian Institute of Public Health, Oslo, Norway
| | - I Brandt
- Norwegian Institute of Public Health, Oslo, Norway
| | - TS Nilsen
- Norwegian Institute of Public Health, Oslo, Norway
| | - S Ooki
- Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Ishikawa, Japan
| | - V Ullemar
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - C Almqvist
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden, Pediatric Allergy and Pulmonology Unit at Astrid Lindgren Children’s Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - PKE Magnusson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - KJ Saudino
- Boston University, Department of Psychological and Brain Sciences, Boston, MA, USA
| | - MA Stazi
- Istituto Superiore di Sanità - Centre for Behavioural Sciences and Mental Health, Rome, Italy
| | - C Fagnani
- Istituto Superiore di Sanità - Centre for Behavioural Sciences and Mental Health, Rome, Italy
| | - S Brescianini
- Istituto Superiore di Sanità - Centre for Behavioural Sciences and Mental Health, Rome, Italy
| | - TL Nelson
- Department of Health and Exercise Sciences, Colorado School of Public Health, Colorado State University, USA
| | - KE Whitfield
- Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - A Knafo-Noam
- The Hebrew University of Jerusalem, Jerusalem, Israel
| | - D Mankuta
- Hadassah Hospital Obstetrics and Gynecology Department, Hebrew University Medical School, Jerusalem, Israel
| | - L Abramson
- The Hebrew University of Jerusalem, Jerusalem, Israel
| | - TL Cutler
- The Australian Twin Registry, Centre for Epidemiology and Biostatistics, The University of Melbourne, Melbourne, Victoria, Australia
| | - JL Hopper
- The Australian Twin Registry, Centre for Epidemiology and Biostatistics, The University of Melbourne, Melbourne, Victoria, Australia, Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - CH Llewellyn
- Health Behaviour Research Centre, Department of Epidemiology and Public Health, Institute of Epidemiology and Health Care, University College London, London, UK
| | - A Fisher
- Health Behaviour Research Centre, Department of Epidemiology and Public Health, Institute of Epidemiology and Health Care, University College London, London, UK
| | - RP Corley
- Institute of Behavioral Science, University of Colorado, Boulder, CO, USA
| | - BM Huibregtse
- Institute of Behavioral Science, University of Colorado, Boulder, CO, USA
| | - CA Derom
- Centre of Human Genetics, University Hospitals Leuven, Leuven, Belgium, Department of Obstetrics and Gynaecology, Ghent University Hospitals, Ghent, Belgium
| | - RF Vlietinck
- Centre of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - M Bjerregaard-Andersen
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau, Research Center for Vitamins and Vaccines, Statens Serum Institute, Copenhagen, Denmark, Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - H Beck-Nielsen
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - M Sodemann
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark
| | - RF Krueger
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - M McGue
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - S Pahlen
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | | | - KL Klump
- Michigan State University, East Lansing, MI, USA
| | - L Dubois
- School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - M Boivin
- École de psychologie, Université Laval, Québec, Canada, Institute of Genetic, Neurobiological, and Social Foundations of Child Development, Tomsk State University, Russian Federation
| | - M Brendgen
- Département de psychologie, Université du Québec à Montréal, Montréal, Québec, Canada
| | - G Dionne
- École de psychologie, Université Laval, Québec, Canada
| | - F Vitaro
- École de psychoéducation, Université de Montréal, Montréal, Québec, Canada
| | - G Willemsen
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - M Bartels
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - CEM van Beijsterveld
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - JM Craig
- Murdoch Childrens Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia, Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - R Saffery
- Murdoch Childrens Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia, Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - F Rasmussen
- Department of Health Sciences, Lund University, Sweden
| | - P Tynelius
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - K Heikkilä
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - KH Pietiläinen
- Obesity Research Unit, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | - G Bayasgalan
- Healthy Twin Association of Mongolia, Ulaanbaatar, Mongolia
| | - D Narandalai
- Healthy Twin Association of Mongolia, Ulaanbaatar, Mongolia, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - CMA Haworth
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - R Plomin
- King’s College London, MRC Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, London, UK
| | - F Ji
- Department of Noncommunicable Diseases Prevention, Qingdao Centers for Disease Control and Prevention, Qingdao, China
| | - F Ning
- Department of Noncommunicable Diseases Prevention, Qingdao Centers for Disease Control and Prevention, Qingdao, China
| | - Z Pang
- Department of Noncommunicable Diseases Prevention, Qingdao Centers for Disease Control and Prevention, Qingdao, China
| | - E Rebato
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country UPV/EHU, Leioa, Spain
| | - AD Tarnoki
- Department of Radiology, Semmelweis University, Budapest, Hungary, Hungarian Twin Registry, Budapest, Hungary
| | - DL Tarnoki
- Department of Radiology, Semmelweis University, Budapest, Hungary, Hungarian Twin Registry, Budapest, Hungary
| | - J Kim
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - J Lee
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - S Lee
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - J Sung
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea, Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - RJF Loos
- The Charles Bronfman Institute for Personalized Medicine, The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - DI Boomsma
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - TIA Sørensen
- Novo Nordisk Foundation Centre for Basic Metabolic Research (Section of Metabolic Genetics), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark, Department of Public Health (Section of Epidemiology), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - J Kaprio
- Department of Public Health, University of Helsinki, Helsinki, Finland, Institute for Molecular Medicine FIMM, Helsinki, Finland
| | - K Silventoinen
- Department of Social Research, University of Helsinki, Helsinki, Finland, Osaka University Graduate School of Medicine, Osaka University, Osaka, Japan
| |
Collapse
|
30
|
Pang Z, Yang G, Khedri R, Zhang YT. Introduction to the Special Section: Convergence of Automation Technology, Biomedical Engineering, and Health Informatics Toward the Healthcare 4.0. IEEE Rev Biomed Eng 2018. [DOI: 10.1109/rbme.2018.2848518] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
31
|
Majumder S, Aghayi E, Noferesti M, Memarzadeh-Tehran H, Mondal T, Pang Z, Deen MJ. Smart Homes for Elderly Healthcare-Recent Advances and Research Challenges. Sensors (Basel) 2017; 17:s17112496. [PMID: 29088123 PMCID: PMC5712846 DOI: 10.3390/s17112496] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 10/08/2017] [Accepted: 10/23/2017] [Indexed: 01/21/2023]
Abstract
Advancements in medical science and technology, medicine and public health coupled with increased consciousness about nutrition and environmental and personal hygiene have paved the way for the dramatic increase in life expectancy globally in the past several decades. However, increased life expectancy has given rise to an increasing aging population, thus jeopardizing the socio-economic structure of many countries in terms of costs associated with elderly healthcare and wellbeing. In order to cope with the growing need for elderly healthcare services, it is essential to develop affordable, unobtrusive and easy-to-use healthcare solutions. Smart homes, which incorporate environmental and wearable medical sensors, actuators, and modern communication and information technologies, can enable continuous and remote monitoring of elderly health and wellbeing at a low cost. Smart homes may allow the elderly to stay in their comfortable home environments instead of expensive and limited healthcare facilities. Healthcare personnel can also keep track of the overall health condition of the elderly in real-time and provide feedback and support from distant facilities. In this paper, we have presented a comprehensive review on the state-of-the-art research and development in smart home based remote healthcare technologies.
Collapse
Affiliation(s)
- Sumit Majumder
- Department of Electrical and Computer Engineering, McMaster University, Hamilton, ON L8S 4L8, Canada.
| | - Emad Aghayi
- Department of Network Science and Technology, Faculty of New Sciences and Technologies, University of Tehran, Tehran 141746-6191, Iran.
| | - Moein Noferesti
- Department of Network Science and Technology, Faculty of New Sciences and Technologies, University of Tehran, Tehran 141746-6191, Iran.
| | - Hamidreza Memarzadeh-Tehran
- Department of Network Science and Technology, Faculty of New Sciences and Technologies, University of Tehran, Tehran 141746-6191, Iran.
| | - Tapas Mondal
- Department of Pediatrics, McMaster University, Hamilton, ON L8S 4L8, Canada.
| | - Zhibo Pang
- ABB Corporate Research, 721 78 Vasteras, Sweden.
| | - M Jamal Deen
- Department of Electrical and Computer Engineering, McMaster University, Hamilton, ON L8S 4L8, Canada.
- School of Biomedical Engineering, McMaster University, Hamilton, ON L8S 4L8, Canada.
| |
Collapse
|
32
|
Abstract
Objective: To investigate the application value of serum calprotectin in assessing the activity of IBD Methods: Eighty-five Crohn's disease(CD) and eighty-five Ulcerative colitis(UC) patients at Suzhou Municipal Hospital(North Branch) from August 2015 to January 2017 were enrolled in this study, and eighty-five healthy subjects were selected as controls. Serum level of calprotectin was determined by ELISA. Correlation of serum calprotectin with clinical features of IBD was analyzed. The diagnostic efficacy for CD and UC were assessed by ROC curve. Results: The level of serum calprotectin was significantly higher in IBD patients than in healthy subjects. Positive correlations were found between serum calprotectin level and CRP, ESR, fecal calprotectin level of IBD(ρ=0.341, P<0.001;ρ=0.438, P<0.001;ρ=0.542, P<0.001,respectively). Besides, positive correlations were found between serum calprotectin level with disease activity index(CDAI or Mayo score) of IBD(ρ=0.309, P=0.004;ρ=0.227, P=0.036,respectively).Nevertheless, no correlation was found between serum calprotectin level with location of IBD and disease subtypes(P>0.05).The area under curve(AUC) of serum calprotectin for diagnosis of CD and UC were 0.946 and 0.906, respectively. Conclusions: Serum level of calprotectin is associated with the activity of IBD. As a result,serum level of calprotectin may has the potential to be served as a clinical index of IBD activity.
Collapse
Affiliation(s)
| | | | - Z Pang
- Department of Gastroenterology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| |
Collapse
|
33
|
Chen X, Gui X, Zhang L, Huang F, Zhong H, Pang Z, Wang S, Tang L, Fu L, Peng Y, Shellman Y. Maternal anti-HBVs suppress the immune response of infants to hepatitis B vaccine. J Viral Hepat 2016; 23:955-960. [PMID: 27469237 DOI: 10.1111/jvh.12572] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 07/02/2016] [Indexed: 12/09/2022]
Abstract
It is still controversial whether maternal anti-HBV antibodies (anti-HBVs) affect the infants' immune response to hepatitis B virus (HBV) vaccination. This multicentre study aims to address this question. First, we determined whether the transplacental transfer of maternal anti-HBVs occurs by measuring the titres of 90 anti-HBVs-positive pregnant women and their newborns. The anti-HBVs-positive rates of newborns ranged from 89.7% to 100.0%, depending on the maternal anti-HBVs titres. Secondly, we investigated the effects of maternal anti-HBVs on the immune response of infants to HBV vaccination. A total of 1063 mother-and-infant pairs were enrolled and divided into three groups with maternal anti-HBVs titres of <10 IU/L (negative - 37.9%), 10-499 and ≥500 IU/L. The infants' anti-HBVs-positive rate and titres were negatively correlated with maternal anti-HBVs titres: the anti-HBVs-positive rate of infants were 88.9% (360/405), 84.5% (381/451) and 77.3% (160/207) in mothers with low, intermediate and high antibody titres, respectively, P<.0001. Median titres of anti-HBVs (IU/L) among infants were 169.1, 141.0 and 79.4, respectively, P=.020. One hundred and sixty-two infants were negative for anti-HBVs after the standard vaccination, and 120 of 131 of these infants (91.6%) reached anti-HBVs positivity after the first "booster" dose. The maternal anti-HBVs titres did not significantly affect infant response to this booster. In summary, transplacental transfer of anti-HBVs occurs and high titres of maternal anti-HBVs may suppress the immune response of infants to the standard HBV vaccination. The current schedule of the 0, 1 and 6 month may not be the optimal choice of infants with anti-HBVs-positive mothers.
Collapse
Affiliation(s)
- X Chen
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuchang District, Wuhan, Hubei Province, China
| | - X Gui
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuchang District, Wuhan, Hubei Province, China
| | - L Zhang
- Department of Infection Control, Qingdao Municipal Hospital, Qingdao, China
| | - F Huang
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - H Zhong
- Mother and Child Hospital, Wuxue, Huanggang, China
| | - Z Pang
- Centers for Disease Control and Prevention, Chongyang County, Xianning, China
| | - S Wang
- Centers for Disease Control and Prevention, Xiaonan District, Xiaogan, China
| | - L Tang
- Centers for Disease Control and Prevention, Chibi, Xianning, China
| | - L Fu
- Centers for Disease Control and Prevention, Chibi, Xianning, China
| | - Y Peng
- Centers for Disease Control and Prevention, Guangshui, Shuizhou, China
| | - Y Shellman
- Department of Dermatology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| |
Collapse
|
34
|
Pang Z, Sun G, Junkins RD, Lin TJ. AIM2 inflammasome is dispensable for the host defense against Pseudomonas aeruginosa infection. Cell Mol Biol (Noisy-le-grand) 2015; 61:63-70. [PMID: 26107502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 06/21/2015] [Indexed: 06/04/2023]
Abstract
Respiratory tract infection with Pseudomonas aeruginosa is a major cause of hospital—acquired pneumonia in immune—compromised individuals. Lung infection with P. aeruginosa is often associated with production of various inflammatory cytokines including IL—1β. Production of IL—1β requires proteolytic cleavage by a multiprotein complex termed inflammasome. AIM2 inflammasome recognizes foreign cytosolic double stranded DNA. A role of AIM2 in P. aeruginosa infection has not been reported previously. In this study, we found that P. aeruginosa infection induced degradation of AIM2 protein in macrophages and induction of AIM2 mRNA expression in macrophages and in the lung of mice. Interestingly, P. aeruginosa infection induced a similar level of IL—1β, IL—6 and TNF production in wild—type and AIM2—deficient mice. Similarly, no significant differences in bacterial clearance, neutrophil infiltration and NF—κB activation were observed between wild—type and AIM2—deficient mice following P. aeruginosa lung infection. Our data suggest that AIM2 inflammasome is dispensable for the host defense against P. aeruginosa infection.
Collapse
Affiliation(s)
- Z Pang
- Saint Mary's University Biology Department Halifax Canada
| | - G Sun
- Saint Mary's University Biology Department Halifax Canada genlou.sun@smu.ca
| | - R D Junkins
- Dalhousie University Department of Microbiology and Immunology Halifax Canada
| | - T J Lin
- Dalhousie University Department of Microbiology and Immunology Halifax Canada tong—jun.lin@dal.ca
| |
Collapse
|
35
|
Hu C, Wang Z, Pang Z, Lu W, Cai X, Yang J, Wang D, Cao P. Guizhi Fuling capsule, an ancient Chinese formula, attenuates endometriosis in rats via induction of apoptosis. Climacteric 2014; 17:410-6. [DOI: 10.3109/13697137.2013.876618] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
36
|
Xu J, Rees G, Yin X, Song C, Han Y, Ge H, Pang Z, Xu W, Tang Y, Friston K, Liu S. Spontaneous neuronal activity predicts intersubject variations in executive control of attention. Neuroscience 2014; 263:181-92. [PMID: 24447598 DOI: 10.1016/j.neuroscience.2014.01.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [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: 09/23/2013] [Revised: 01/10/2014] [Accepted: 01/10/2014] [Indexed: 01/27/2023]
Abstract
Executive control of attention regulates our thoughts, emotion and behavior. Individual differences in executive control are associated with task-related differences in brain activity. But it is unknown whether attentional differences depend on endogenous (resting state) brain activity and to what extent regional fluctuations and functional connectivity contribute to individual variations in executive control processing. Here, we explored the potential contribution of intrinsic brain activity to executive control by using resting-state functional magnetic resonance imaging (fMRI). Using the amplitude of low-frequency fluctuations (ALFF) as an index of spontaneous brain activity, we found that ALFF in the right precuneus (PCUN) and the medial part of left superior frontal gyrus (msFC) was significantly correlated with the efficiency of executive control processing. Crucially, the strengths of functional connectivity between the right PCUN/left msFC and distributed brain regions, including the left fusiform gyrus, right inferior frontal gyrus, left superior frontal gyrus and right precentral gyrus, were correlated with individual differences in executive performance. Together, the ALFF and functional connectivity accounted for 67% of the variability in behavioral performance. Moreover, the strength of functional connectivity between specific regions could predict more individual variability in executive control performance than regionally specific fluctuations. In conclusion, our findings suggest that spontaneous brain activity may reflect or underpin executive control of attention. It will provide new insights into the origins of inter-individual variability in human executive control processing.
Collapse
Affiliation(s)
- J Xu
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Jinan, Shandong, China; UCL Institute of Cognitive Neuroscience, London, United Kingdom; Wellcome Trust Centre for Neuroimaging, University College London (UCL) Institute of Neurology, London, United Kingdom
| | - G Rees
- UCL Institute of Cognitive Neuroscience, London, United Kingdom; Wellcome Trust Centre for Neuroimaging, University College London (UCL) Institute of Neurology, London, United Kingdom
| | - X Yin
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Jinan, Shandong, China
| | - C Song
- UCL Institute of Cognitive Neuroscience, London, United Kingdom
| | - Y Han
- Department of Radiology, Affiliated Hospital of Medical College, Qingdao University, Qingdao, Shandong, China
| | - H Ge
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Jinan, Shandong, China
| | - Z Pang
- Department of Epidemiology, Qingdao Municipal Central for Disease Control and Prevention, Qingdao, Shandong, China
| | - W Xu
- Department of Radiology, Affiliated Hospital of Medical College, Qingdao University, Qingdao, Shandong, China
| | - Y Tang
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Jinan, Shandong, China
| | - K Friston
- Wellcome Trust Centre for Neuroimaging, University College London (UCL) Institute of Neurology, London, United Kingdom
| | - S Liu
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Jinan, Shandong, China.
| |
Collapse
|
37
|
Pang Z, Zheng L, Tian J, Kao-Walter S, Dubrova E, Chen Q. Design of a terminal solution for integration of in-home health care devices and services towards the Internet-of-Things. ENTERP INF SYST-UK 2013. [DOI: 10.1080/17517575.2013.776118] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
38
|
Li J, Liu J, Pang Z, Wang X. Characteristics of Chemistry and Stable Isotopes in Groundwater of the Chaobai River Catchment, Beijing. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.proeps.2013.03.092] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
39
|
Chen GC, Lv DB, Pang Z, Dong JY, Liu QF. Dietary fiber intake and stroke risk: a meta-analysis of prospective cohort studies. Eur J Clin Nutr 2012; 67:96-100. [DOI: 10.1038/ejcn.2012.158] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
40
|
|
41
|
Pang Z, Laplante NE, Filkins RJ. Dark pixel intensity determination and its applications in normalizing different exposure time and autofluorescence removal. J Microsc 2011; 246:1-10. [PMID: 22191641 DOI: 10.1111/j.1365-2818.2011.03581.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The purpose of this study is to investigate how to scale pixel intensity acquired from one exposure time to another. This is required when comparing grayscale images acquired at different exposure times and other image processing such as autofluorescence removal. Pixel intensity is linear to exposure time as long as images are acquired at the linear range of a camera, but importantly there exists an intercept, which is set by the camera. We termed this intercept as dark pixel intensity, as it is the pixel intensity under conditions of no light and zero exposure time. Dark pixel intensity is determined by camera's readout noise (electron/pixel), gain, and DC offset. Knowing dark pixel intensity, image acquired from one exposure time can be linearly scaled to an image at a different exposure time. Dark pixel intensity can be directly measured by obtaining an image at no light and zero (or minimum) exposure time. It can be also indirectly calculated by capturing images at a series of exposure times. Finally, the prestained and poststained images were acquired at their optimal exposures and autofluorescence was completely removed by normalizing images with the exposure time ratio and dark pixel intensity followed by subtraction.
Collapse
Affiliation(s)
- Z Pang
- Diagnostics and Biomedical Technologies, General Electric Company Global Research Center, Niskayuna, NY 12309, USA.
| | | | | |
Collapse
|
42
|
Pang Z, Zhang D, Li S, Duan H, Hjelmborg J, Kruse TA, Kyvik KO, Christensen K, Tan Q. Multivariate modelling of endophenotypes associated with the metabolic syndrome in Chinese twins. Diabetologia 2010; 53:2554-61. [PMID: 20878385 DOI: 10.1007/s00125-010-1907-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Accepted: 08/24/2010] [Indexed: 11/28/2022]
Abstract
AIMS/HYPOTHESIS The common genetic and environmental effects on endophenotypes related to the metabolic syndrome have been investigated using bivariate and multivariate twin models. This paper extends the pairwise analysis approach by introducing independent and common pathway models to Chinese twin data. The aim was to explore the common genetic architecture in the development of these phenotypes in the Chinese population. METHODS Three multivariate models including the full saturated Cholesky decomposition model, the common factor independent pathway model and the common factor common pathway model were fitted to 695 pairs of Chinese twins representing six phenotypes including BMI, total cholesterol, total triacylglycerol, fasting glucose, HDL and LDL. Performances of the nested models were compared with that of the full Cholesky model. RESULTS Cross-phenotype correlation coefficients gave clear indication of common genetic or environmental backgrounds in the phenotypes. Decomposition of phenotypic correlation by the Cholesky model revealed that the observed phenotypic correlation among lipid phenotypes had genetic and unique environmental backgrounds. Both pathway models suggest a common genetic architecture for lipid phenotypes, which is distinct from that of the non-lipid phenotypes. The declining performance with model restriction indicates biological heterogeneity in development among some of these phenotypes. CONCLUSIONS/INTERPRETATION Our multivariate analyses revealed common genetic and environmental backgrounds for the studied lipid phenotypes in Chinese twins. Model performance showed that physiologically distinct endophenotypes may follow different genetic regulations.
Collapse
Affiliation(s)
- Z Pang
- Qingdao Center for Disease Control and Prevention, No 175, Shandong Road, Sifang District, 266033 Qingdao, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Liu S, Zhou X, Xiong Y, Yang Y, Wang C, Qu X, Xie Y, Hu H, Pang Z. APOLIPOPROTEIN E POLYMORPHISM AND CORONARY HEART DISEASE AND TYPE 2 DIABETESND TYPE 2 DIABETES. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70423-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
44
|
Liu D, Pang Z, Lloyd SR. A neural network method for detection of obstructive sleep apnea and narcolepsy based on pupil size and EEG. ACTA ACUST UNITED AC 2008; 19:308-18. [PMID: 18269961 DOI: 10.1109/tnn.2007.908634] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Electroencephalogram (EEG) is able to indicate states of mental activity ranging from concentrated cognitive efforts to sleepiness. Such mental activity can be reflected by EEG energy. In particular, intrusion of EEG theta wave activity into the beta activity of active wakefulness has been interpreted as ensuing sleepiness. Pupil behavior can also provide information regarding alertness. This paper develops an innovative signal classification method that is capable of differentiating subjects with sleep disorders which cause excessive daytime sleepiness (EDS) from normal control subjects who do not have a sleep disorder based on EEG and pupil size. Subjects with sleep disorders include persons with untreated obstructive sleep apnea (OSA) and narcolepsy. The Yoss pupil staging rule is used to scale levels of wakefulness and at the same time theta energy ratios are calculated from the same 2-s sliding windows by Fourier or wavelet transforms. Then, an artificial neural network (NN) of modified adaptive resonance theory (ART2) is utilized to identify the two groups within a combined group of subjects including those with OSA and healthy controls. This grouping from the NN is then compared with the actual diagnostic classification of subjects as OSA or controls and is found to be 91% accurate in differentiating between the two groups. The same algorithm results in 90% correct differentiation between narcoleptic and control subjects.
Collapse
Affiliation(s)
- D Liu
- Department of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL 60607-7053, USA.
| | | | | |
Collapse
|
45
|
Kong ZP, Bao RL, Zhou XG, Pang Z, Jiang L, Chen ZX, Yue B. Crystal structure of hexaaquabis{2-[N-(4-pyridylcarbonyl)hydrazido]- propionato}dimanganese(II) tetrahydrate, Mn2(H2O)6(C9H7N3O3)2 · 4H2O. ACTA ACUST UNITED AC 2005. [DOI: 10.1524/ncrs.2005.220.14.85] [Citation(s) in RCA: 2] [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: 11/24/2022]
|
46
|
Peng G, Pang Z. [In vitro modulation of the invasive and metastatic potentials of human hepatocellular carcinoma by interlukin-2]. Zhonghua Gan Zang Bing Za Zhi 2001; 9:303-5. [PMID: 11676880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
OBJECTIVE To investigate the effects of interlukin-2 (IL-2) on the in vitro invasiveness and the expression of several cell surface antigens related to invasive and metastatic potentials of human hepatocellular carcinoma (HCC) QGY-7701 cell line. METHODS QGY-7701 cells were incubated with high concentration of IL-2 or low concentration of IL-2 in different time. The expression of ICAM-1, CD(44) and HLA-I of the tumor cells was determined by fluorescence-activated cell sorter (FACS) analysis The tumor cell binding affinity to extracellular matrix components was measured by cell attachment assay. The degree of homotypic aggregation was quantified by cell aggregation assay. RESULTS IL-2 treatment exhibited enhanced expression of ICAM-1 (from 8.3% to 20.5% after high concentration of IL-2 treatment and 17.3% after low concentration of IL-2 treatment) and HLA-I (from 9.8% to 25.4% and 22.1%, respectively after high and low concentration of IL-2 treatment), suppression of CD(44) (from 26.4% to 12.5% and 11.6%, respectively) on HCC cell line and decreased binding affinity to type IV collagen (from 23.5% to 12.4%, 32.3% to 13.8%, 45.7% to 19.6% at 20 min, 40 min and 60 min, respectively after high concentration of IL-2 treatment, and 9.6%, 12.5% and 17.9%, respectively after low concentration of IL-2 treatment) and fibronectin (from 18.6% to 14.1%, 31.2% to 18.4%, 44.5% to 20.5% at 20 min, 40 min and 60 min, respectively after high concentration of IL-2 treatment, and 14.6%, 17.1% and 18.9%, respectively after low concentration of IL-2 treatment) and the degree of homotypic aggregation (from 58.3% to 26.5%, 85.4% to 37.6%, 88.6% to 42.3% at 20 min, 40 min and 60 min, respectively after high concentration of IL-2 treatment, and 25.0%, 36.4% and 42.6%, respectively after low concentration of IL-2 treatment)of HCC cells. CONCLUSIONS IL-2 may directly alter tumor properties associated with invasive and metastatic phenotypes of HCC cells, and can inhibit the invasive and metastatic potentials of HCC cells.
Collapse
Affiliation(s)
- G Peng
- Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | | |
Collapse
|
47
|
Gajendiran M, Ling GY, Pang Z, Xu ZC. Differential changes of synaptic transmission in spiny neurons of rat neostriatum following transient forebrain ischemia. Neuroscience 2001; 105:139-52. [PMID: 11483308 DOI: 10.1016/s0306-4522(01)00163-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Spiny neurons in neostriatum are vulnerable to cerebral ischemia. To reveal the mechanisms underlying the postischemic neuronal damage, the spontaneous activities, evoked postsynaptic potentials and membrane properties of spiny neurons in rat neostriatum were compared before and after transient forebrain ischemia using intracellular recording and staining techniques in vivo. In control animals the membrane properties of spiny neurons were about the same between the left and right neostriatum but the inhibitory synaptic transmission was stronger in the left striatum. After severe ischemia, the spontaneous firing and membrane potential fluctuation of spiny neurons dramatically reduced. The cortically evoked initial excitatory postsynaptic potentials were suppressed after ischemia indicated by the increase of stimulus threshold and the rise time of these components. The paired-pulse facilitation test indicated that such suppression might involve presynaptic mechanisms. The inhibitory postsynaptic potentials in spiny neurons were completely abolished after ischemia and never returned to the control levels. A late depolarizing postsynaptic potential that was elicited from approximately 5% of the control neurons by cortical stimulation could be evoked from approximately 30% of the neurons in the left striatum and approximately 50% in the right striatum after ischemia. The late depolarizing postsynaptic potential could not be induced after acute thalamic transection. The intrinsic excitability of spiny neurons was suppressed after ischemia evidenced by the significant increase of spike threshold and rheobase as well as the decrease of repetitive firing rate following ischemia. The membrane input resistance and time constant increased within 6 h following ischemia and the amplitude of fast afterhyperpolarization significantly increased after ischemia. These results indicate the depression of excitatory monosynaptic transmission, inhibitory synaptic transmission and excitability of spiny neurons after transient forebrain ischemia whereas the excitatory polysynaptic transmission in neostriatum was potentiated. The facilitation of excitatory polysynaptic transmission is stronger in the right neostriatum than in the left neostriatum after ischemia. The suppression of inhibitory component and the facilitation of excitatory polysynaptic transmission may contribute to the pathogenesis of neuronal injury in neostriatum after transient cerebral ischemia.
Collapse
Affiliation(s)
- M Gajendiran
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, 635 Barnhill Drive, MS 507, Indianapolis, IN 46202, USA
| | | | | | | |
Collapse
|
48
|
Abstract
The synaptic transmission and intrinsic membrane properties of spiny neurons in rat neostriatum were studied after unilateral dopamine depletion using in vivo intracellular recording and staining techniques. Two to four weeks after dopamine denervation, the spontaneous firing rate of spiny neurons increased and the spontaneous membrane potential fluctuation stayed at a more depolarized state for longer periods of time. The amplitude of cortically evoked initial excitatory postsynaptic potentials increased and a late excitatory postsynaptic potential that was occasionally found in control neurons was elicited from 23% of spiny neurons after dopamine denervation. No significant changes in intrinsic membrane properties of spiny neurons were observed after dopamine denervation. These results suggest that dopamine inhibits excitatory synaptic transmission of spiny neurons in naïve animals.
Collapse
Affiliation(s)
- Z Pang
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN 46202, USA
| | | | | | | |
Collapse
|
49
|
Li X, Luo H, Pang Z, Huang S, Liang Z. [Purification and characterization of 2-carbonyl reductase from marine bacteria Bacillus sp]. Wei Sheng Wu Xue Bao 2001; 41:463-8. [PMID: 12552913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
ANADPH-dependent 2-Oxoaldehyde reductase was isolated and purified from a marine bacteria Bacillus sp. The purification procedure involved ammonium sulfate fractionation and Q Sepharose FF, Hydroxyapatite, Sephadex G-100 column chromatographies. The specific activity of the purified enzyme was increased by 141.1 folds over crude extract and the recovery yield was 11.4%. 2-Oxoaldehyde compounds were found to be speciall good substrates. The optimum pH of the enzyme activity was 6.2-6.6. The Km coefficient for 3-deoxyglucosone was 2.5 mmol/L. The molecular weight of the enzyme was estimated to be 33 kD The enzyme activity is stable below 30 degrees C and pH 5.0-8.0. EDTA, beta-mercaptoethanol and dithiothreitol enhanced the enzyme activity. On the other hand, the enzyme activity was partially lost by idoacetic acid or N-ethylmaleimide.
Collapse
Affiliation(s)
- X Li
- Industrial Experimental Centre of GuangXi University, Nanning 530004, China
| | | | | | | | | |
Collapse
|
50
|
He L, Chen X, Qu J, Gu Y, Fang X, Hong Q, Huang S, Zhou X, Pang Z, Sheng A. [Comparative studies of treatments with cefepime and ceftazidime in patients with pneumonia]. Zhonghua Jie He He Hu Xi Za Zhi 2000; 23:689-91. [PMID: 11225037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
|