1
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Li YY, Liu WW. [Current status and prospects of laboratory tests for inflammatory bowel disease]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1687-1692. [PMID: 37859390 DOI: 10.3760/cma.j.cn112150-20230112-00025] [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: 10/21/2023]
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory disease affecting the gastrointestinal tract, with a global incidence increasing year by year, and the incidence of IBD in developing countries has been increasing since the end of the last century. The pathogenesis of IBD remains unclear, which is the combined result of genetic, immune, diet, environmental and other factors. There is no gold standard for the diagnosis of IBD. Colonoscopy and mucosal biopsy are the preferred clinical tests, but these invasive and time-consuming methods are not conducive to early screening and frequent monitoring. Therefore, convenient, fast, non-invasive and reliable methods are urgently needed to assist the clinical diagnosis and evaluation of IBD. This paper aims to elaborate the laboratory diagnosis and monitoring methods of IBD based on fecal and blood indicators, which can provide ideas for the prevention, screening, diagnosis and monitoring of IBD, and help reduce its burden on people's living standards, public health and society.
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Affiliation(s)
- Y Y Li
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China Department of Central Laboratory, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200070, China
| | - W W Liu
- Department of Laboratory Medicine, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
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2
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Li H, Ju Y, Liu WW, Ma YY, Ye H, Li N. [Phase Separation of Purified Human LSM4 Protein]. Mol Biol (Mosk) 2023; 57:124-126. [PMID: 36976747 DOI: 10.31857/s0026898423010068] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 07/20/2022] [Indexed: 03/29/2023]
Abstract
Liquid-liquid phase separation of proteins occur in a number of biological processes, such as regulation of transcription, processing, and RNA maturation. Sm-like protein 4 (LSM4) is involved in multiple processes, including pre-mRNA splicing and P-bodies assembly. Before investigating the involvement of LSM4 in the separation of the two liquid phases during RNA processing or maturation, the separation of the liquid phases in an in vitro preparation of LSM4 protein should be first be detected. The mCherry-LSM4 plasmid was derived from pET30a and used to isolate mCherry-LSM4 protein from prokaryotic cells (Escherichia coli strain BL21). The mCherry LSM4 protein was purified using Ni-NTA resin. The protein was further purified by fast protein liquid chromatography. Delta-Vision wide-field fluorescence microscopy was used to observe the dynamic liquid-liquid phase separation of the LSM4 protein in vitro. Analysis of the LSM4 protein structure using the Predictor of Natural Disordered Regions database revealed that its C-terminus contains a low complexity domain. A purified preparation of full-length human LSM4 protein was obtained from E. coli. Human LSM4 was shown to provide concentration-dependent separation of liquid-liquid phases in vitro in buffer with crowding reagents. Salts in high concentration and 1,6-hexanediol block the LSM4-induced separation of the two liquid phases. In addition, in vitro fusion of LSM4 protein droplets is observed. The results suggest that full-length human LSM4 protein can undergo liquid-liquid phase separation in vitro.
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Affiliation(s)
- H Li
- Health Care Office, Service Bureau of The General Administration of Affairs, The Central Military Commission, Beijing, 100034 China
| | - Y Ju
- Department of Obstetrics and Gynecology, Seventh Medical Center of Chinese People's Liberation Army General Hospital, Beijing, 100071 China
| | - W W Liu
- Health Care Office, Service Bureau of The General Administration of Affairs, The Central Military Commission, Beijing, 100034 China
| | - Y Y Ma
- Department of Minimally Invasive Gynecologic Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, 100006 China
| | - H Ye
- Department of Minimally Invasive Gynecologic Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, 100006 China
| | - N Li
- Department of Minimally Invasive Gynecologic Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing, 100006 China
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3
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Abstract
When it comes to food, one tempting substance is sugar. Although sweetness is detected by the tongue, the desire to consume sugar arises from the gut. Even when sweet taste is impaired, animals can distinguish sugars from non-nutritive sweeteners guided by sensory cues arising from the gut epithelium. Here, we review the molecular receptors, cells, circuits and behavioural consequences associated with sugar sensing in the gut. Recent work demonstrates that some duodenal cells, termed neuropod cells, can detect glucose using sodium-glucose co-transporter 1 and release glutamate onto vagal afferent neurons. Based on these and other data, we propose a model in which specific populations of vagal neurons relay these sensory cues to distinct sets of neurons in the brain, including neurons in the caudal nucleus of the solitary tract, dopaminergic reward circuits in the basal ganglia and homeostatic feeding circuits in the hypothalamus, that alter current and future sugar consumption. This emerging model highlights the critical role of the gut in sensing the chemical properties of ingested nutrients to guide appetitive decisions.
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Affiliation(s)
- Winston W Liu
- Laboratory of Gut Brain Neurobiology, Duke University, Durham, NC, USA
- Department of Medicine, Duke University, Durham, NC, USA
- Department of Neurobiology, Duke University, Durham, NC, USA
| | - Diego V Bohórquez
- Laboratory of Gut Brain Neurobiology, Duke University, Durham, NC, USA.
- Department of Medicine, Duke University, Durham, NC, USA.
- Department of Neurobiology, Duke University, Durham, NC, USA.
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4
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Zhang DM, Wang YL, Liu WW, Xu LY, Chen SM. [Establish and application of scoring scale for trial of labor after cesarean section]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:339-345. [PMID: 35658324 DOI: 10.3760/cma.j.cn112141-20220321-00180] [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: 06/15/2023]
Abstract
Objective: To establish a scoring scale for trial of labor after cesarean section (TOLAC), to explore the evaluation ability of this scoring scale for vaginal delivery after cesarean section (VBAC), and to improve the success rate of TOLAC. Methods: The delivery information of 661 TOLAC pregnant women admitted to Zhengzhou Central Hospital Affiliated to Zhengzhou University from 2014 to 2017 was retrospectively analyzed, and the TOLAC scoring scale was established by referring to relevant literatures. A prospective cohort study of pregnant women with TOLAC from January 2018 to December 2019 in Zhengzhou Central Hospital was conducted, including 440 pregnant women who were excluded from contraindications in trial labor. According to TOLAC scoring scale, pregnant women were divided into 3 groups, 0-6 group (94 cases), 7-9 group (234 cases) and 10-15 group (112 cases). The success rate of trial labor, failure reasons and incidence of maternal and neonatal complications were compared among the three groups. Results: (1) The overall success rate of TOLAC in 440 pregnant women was 75.0% (330/440). The success rates of 0-6, 7-9 and 10-15 groups were 53.2% (50/94), 76.9% (180/234) and 89.3% (100/112), respectively. The success rate of 10-15 group were significantly higher than those of 0-6 and 7-9 groups (all P<0.05). (2) Among the causes of trial labor failure, there were statistically significant differences between the three groups in terms of threatened uterine rupture and maternal abandonment (all P<0.05). Pairings showed that the incidences of threatened uterine rupture and maternal abandonment in 0-6 group was lower than those in 7-9 and 10-15 groups, and the differences were statistically significant (all P<0.05). (3) Maternal and neonatal complications mainly included postpartum hemorrhage and neonatal asphyxia, but there were no significant difference in the incidence of TOLAC success or failure among the three groups (all P>0.05). There was no uterine rupture in all groups. (4) The main factors affecting TOLAC score of pregnant women in the three groups included natural labor, estimated weight of the fetus at this time, Bishop score of the cervix at admission and gestational age, and the scores of the above indexes in 10-15 group were significantly higher than those in 0-6 group and 7-9 group (all P<0.05). Conclusions: TOLAC scoring scale has more accurate evaluation ability for VBAC, which could improve the success rate of TOLAC and maternal and child safety. The score of 0-6 is not recommended for vaginal trial labor, the score of 7-9 is recommended for vaginal trial labor, and the score of 10-15 is strongly recommended for vaginal trial labor.
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Affiliation(s)
- D M Zhang
- Department of Obstetrics and Gynecology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
| | - Y L Wang
- Department of Obstetrics and Gynecology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
| | - W W Liu
- Department of Obstetrics and Gynecology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
| | - L Y Xu
- Department of Obstetrics and Gynecology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
| | - S M Chen
- Department of Obstetrics and Gynecology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450052, China
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Buchanan KL, Rupprecht LE, Kaelberer MM, Sahasrabudhe A, Klein ME, Villalobos JA, Liu WW, Yang A, Gelman J, Park S, Anikeeva P, Bohórquez DV. The preference for sugar over sweetener depends on a gut sensor cell. Nat Neurosci 2022; 25:191-200. [PMID: 35027761 PMCID: PMC8825280 DOI: 10.1038/s41593-021-00982-7] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 11/09/2021] [Indexed: 12/18/2022]
Abstract
Guided by gut sensory cues, humans and animals prefer nutritive sugars over non-caloric sweeteners, but how the gut steers such preferences remains unknown. In the intestine, neuropod cells synapse with vagal neurons to convey sugar stimuli to the brain within seconds. Here, we found that cholecystokinin (CCK)-labeled duodenal neuropod cells differentiate and transduce luminal stimuli from sweeteners and sugars to the vagus nerve using sweet taste receptors and sodium glucose transporters. The two stimulus types elicited distinct neural pathways: while sweetener stimulated purinergic neurotransmission, sugar stimulated glutamatergic neurotransmission. To probe the contribution of these cells to behavior, we developed optogenetics for the gut lumen by engineering a flexible fiberoptic. We showed that preference for sugar over sweetener in mice depends on neuropod cell glutamatergic signaling. By swiftly discerning the precise identity of nutrient stimuli, gut neuropod cells serve as the entry point to guide nutritive choices. Buchanan, Rupprecht, Kaelberer and colleagues show that the preference for sugar over sweetener in mice depends on gut neuropod cells. Akin to other sensor cells, neuropod cells swiftly communicate the precise identity of stimuli to drive food choices.
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Affiliation(s)
- Kelly L Buchanan
- Laboratory of Gut Brain Neurobiology, Duke University, Durham, NC, USA.,Duke University School of Medicine, Durham, NC, USA
| | - Laura E Rupprecht
- Laboratory of Gut Brain Neurobiology, Duke University, Durham, NC, USA.,Department of Medicine, Duke University, Durham, NC, USA
| | - M Maya Kaelberer
- Laboratory of Gut Brain Neurobiology, Duke University, Durham, NC, USA.,Department of Medicine, Duke University, Durham, NC, USA
| | - Atharva Sahasrabudhe
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Marguerita E Klein
- Laboratory of Gut Brain Neurobiology, Duke University, Durham, NC, USA.,Department of Medicine, Duke University, Durham, NC, USA
| | - Jorge A Villalobos
- Laboratory of Gut Brain Neurobiology, Duke University, Durham, NC, USA.,Department of Medicine, Duke University, Durham, NC, USA
| | - Winston W Liu
- Laboratory of Gut Brain Neurobiology, Duke University, Durham, NC, USA.,Duke University School of Medicine, Durham, NC, USA.,Department of Neurobiology, Duke University, Durham, NC, USA
| | - Annabelle Yang
- Laboratory of Gut Brain Neurobiology, Duke University, Durham, NC, USA.,Trinity College of Arts & Sciences, Duke University, Durham, NC, USA
| | - Justin Gelman
- Laboratory of Gut Brain Neurobiology, Duke University, Durham, NC, USA.,Trinity College of Arts & Sciences, Duke University, Durham, NC, USA
| | - Seongjun Park
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Polina Anikeeva
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA.,Departments of Materials Science & Engineering and Brain & Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Diego V Bohórquez
- Laboratory of Gut Brain Neurobiology, Duke University, Durham, NC, USA. .,Department of Medicine, Duke University, Durham, NC, USA. .,Department of Neurobiology, Duke University, Durham, NC, USA. .,Duke Institute for Brain Sciences, Duke University, Durham, NC, USA. .,MSRB-I, room 221A, 203 Research Drive, Durham, NC, USA.
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Liu WW, Yang Y, Niu XY, Cheng MM, Wang S, Wu Y, Yang ZX, Liu XY, Cai LX, Jiang YW, Zhang YH. [Genotype and phenotype of children with DEPDC5 gene variants related epilepsy]. Zhonghua Er Ke Za Zhi 2021; 59:859-864. [PMID: 34587683 DOI: 10.3760/cma.j.cn112140-20210323-00249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To summarize the clinical characteristics and the features of electroencephalograph (EEG) of children with DEPDC5 gene variants related epilepsy. Methods: The clinical data, gene variation, EEG and head magnetic resonance image (MRI) of 20 epileptic children with DEPDC5 gene variants admitted to Department of Pediatrics, Peking University First Hospital from May 2017 to November 2020 were retrospectively analyzed. Results: Twenty patients with heterozygous DEPDC5 gene variants were enrolled, 8 of 20 patients were nonsense variants, 6 were missense variants, 3 were frame-shift variants, 2 were splicing variants, and 1 was large fragment deletion. Sixteen cases had hereditary variation and 4 had de novo variation. Fifteen of variations were novel. Nine were male, while 11 were female. Their latest follow-up age ranged from 10 months to 13 years and one month.The epilepsy onset age ranged from 3 hours to 11 years and 3 months, the median age was 10.5 months. Twelve (60%) patients had developmental delay. Nineteen patients had focal seizures, 7 had epileptic spasms, 1 had multiple seizure types including tonic, atypical absence, dystonic and myoclonic seizures. Epileptic form discharges were observed in 18 patients during the interictal phase, and 11 were focal discharges, 7 were multifocal discharges. Ten (50%) patients had abnormal brain MRI, including focal cortical dysplasia in 5 patients, undefined malformation of cortical development in 4 patients, hemimegalencephaly in 1 patient. Four patients were diagnosed as West syndrome and one patient was diagnosed as Lennox-Gastaut syndrome. Fourteen (70%) patients were diagnosed as drug-resistant epilepsy. Four patients became seizure-free by treatment with anti-epileptic drugs. Three children were treated with surgery, and 2 of them became seizure-free, 1 had more than 75% reduction in seizures. Conclusions: DEPDC5 gene variant epilepsy is inherited with incomplete penetrance and focal seizure is the major seizure type. However, epileptic spasms, generalized seizures can also be observed. Half of the patients brain malformations. Most of the patients are drug-resistant epilepsy. Patients with clear epileptogenic zones can be treated with surgery. Treatment-resistant patients are more likely to be complicated with developmental delay.
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Affiliation(s)
- W W Liu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y Yang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - X Y Niu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - M M Cheng
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - S Wang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y Wu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Z X Yang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - X Y Liu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - L X Cai
- Pediatric Epilepsy Center, Peking University First Hospital, Beijing 100034, China
| | - Y W Jiang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y H Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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7
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Yang Q, Qiao CM, Liu WW, Jiang HY, Jing QQ, Liao YY, Xing YY. Genome-wide DNA methylation and transcription analysis in tongue and biceps femoris muscles of cloned pigs with macroglossia. Anim Genet 2021; 52:608-620. [PMID: 34182591 DOI: 10.1111/age.13105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2021] [Indexed: 11/29/2022]
Abstract
Cloned animals are prone to abnormal phenotypes such as enlarged tongue, fetal oversize, and progeria. In the present study, whole-genome bisulfite sequencing and mRNA sequencing were performed on tongue and biceps femoris muscles of cloned piglets with and without macroglossia, in an attempt to elucidate the epigenetic causes of the macroglossia phenotype. We identified 14 958 and 18 752 differentially methylated regions in the tongue and biceps femoris muscles, respectively, of macroglossia piglets and these correspond to 4574 and 4772 differentially methylated genes compared with the control group (piglets without macroglossia). Larger methylation difference was found in tongue muscle than in biceps femoris muscle. In total, 114 genes in tongue and 72 genes in biceps femoris muscles were found to be differentially expressed between the two groups. Of these differentially expressed genes in tongue muscle, 31 were also differentially methylated genes, among which DIO3 and ZIC1 were imprinting or predicted imprinting genes. These two and another six overlapping genes (ALDH1A2, MKX, MAB21L2, CA3, RANBP3L, and MYL10) are crucial factors involved in embryonic development or tissue and organ development. GO enrichment analysis suggested possible alteration of these processes. Our study provides novel molecular insights into the formation of macroglossia in cloned pigs.
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Affiliation(s)
- Q Yang
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - C M Qiao
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - W W Liu
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - H Y Jiang
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Q Q Jing
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Y Y Liao
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Y Y Xing
- State Key Laboratory of Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, 330045, China
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8
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Fan ZM, Yang B, Dong ZP, Shao HY, Liu WW, Bao XH, Shi MG. [Analysis of incidence characteristics of occupational chronic benzene poisoning under two diagnostic criteria]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:350-353. [PMID: 34074079 DOI: 10.3760/cma.j.cn121094-20200716-00413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the incidence characteristics of occupational chronic benzene poisoning under two diagnostic criteria. Methods: In March 2020, 126 patients who were divided into the old criteria group (74 cases) and the new criteria group (52 cases) were retrospectively analyzed. These patients were diagnosed with occupational chronic benzene poisoning, and were diagnosed in our hospital during the period of January 2009 to December 2019. The gender composition, age of onset, years of benzene exposure, industry distribution, work type, benzene concentration in working environment and diagnostic grade of the two groups of patients were analyzed and compared. The follow-up of 22 benzene poisoning observation subjects under the old criteria were retrospectively analyzed. Results: There were no statistically significant differences in gender composition, age of onset, years of benzene exposure, industry distribution and work type between the old criteria group and the new criteria group (P>0.05) . In the old criteria group and the new criteria group, 41.9% (31/74) and 17.3% (9/52) of the patients' workplace benzene concentration exceeded the maximum allowable concentration, respectively. The composition of different benzene concentration in the workplace between the two groups showed statistically significant (P<0.05) . In the old criteria group, the proportion of mild poisoning (79.7%, 59/74) was the majority, while in the new criteria group, the proportion of moderate and severe poisoning (51.9%, 27/52) were the majority, and there was statistically significance in the composition ratio of diagnostic grade between the two groups (P<0.05) . Under the old criteria, after folow-up of 22 cases of benzene poisoning observation subjects, we observed that 8 cases (36.4%) progressed to the level of chronic benzene poisoning. Conclusion: The revision of diagnostic criteria for benzene poisoning may affect the composition of diagnosis classification. Based on the rights and interests of workers, formulating more complete diagnostic criteria and system policies will be more conducive to the development of occupational benzene poisoning prevention and control.
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Affiliation(s)
- Z M Fan
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
| | - B Yang
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
| | - Z P Dong
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
| | - H Y Shao
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
| | - W W Liu
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
| | - X H Bao
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
| | - M G Shi
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
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9
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Wang RJ, Zhang Q, Wu XY, Zhang XD, Xu SJ, Sun J, Zhang SC, Wang X, Zong Q, Tao SM, Li DL, Liu WW, Tong J, Li TT, Wang QL, Zhang Y, Tao FB. [The relationship between migration time and the prevalence of myopia of children and adolescents aged 6-18 years old in Shenzhen]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:460-464. [PMID: 33858056 DOI: 10.3760/cma.j.cn112150-20200723-01051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the relationship between migration time and the prevalence of myopia of children and adolescents aged between 6 and 18 years old in Shenzhen. Methods: From April to May 2019, 26 618 children and adolescents from 14 schools in six streets of Baoan District, including Fuyong, Shajing, Xin'an, Xixiang, Songgang and Shiyan, were included in the study by using random cluster sampling method. The demographic characteristics, migration status, self-reported myopia, screen time in the last seven days, outdoor activities in the last one month and other information were collected through the questionnaire. The differences of myopia among children and adolescents with different characteristics were compared by χ2 test, and the relationship between migration time and the prevalence of myopia was analyzed by multivariate unconditional logistic regression model. Results: The age of 26 618 study participants was (12.37±3.49) years old, and the overall prevalence of myopia was 49.4%. Multivariate logistic regression analysis showed that after controlling for relevant confounding factors, compared with migrant children and adolescents of migrant workers who migrated for 1-2 years, those of migrant workers who had migrated for more than 6 years had a higher risk of myopia [OR (95%CI): 1.48 (1.14-1.92)]. After being grouped by phase of school, in the lower grade group of primary school, the children and adolescents of migrant workers who had migrated for more than 6 years had a higher risk of myopia compared with those of migrant workers who migrated for 1-2 years [OR (95%CI): 1.96 (1.20-2.74)]. In the high school group, compared with the children and adolescents of migrant workers who migrated for 1-2 years, those of migrant workers who had migrated for 3-5 years and ≥6 years had a higher risk of myopia [OR (95%CI): 6.03 (1.29-28.15) and 6.52 (1.51-28.11), respectively]. Conclusion: The migration time is related to the prevalence of myopia of the children and adolescents of migrant workers.
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Affiliation(s)
- R J Wang
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - Q Zhang
- Baoan District Center for Disease Control and Prevention, Shenzhen 518101, Guangdong China
| | - X Y Wu
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - X D Zhang
- Baoan District Center for Disease Control and Prevention, Shenzhen 518101, Guangdong China
| | - S J Xu
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - J Sun
- Baoan District Center for Disease Control and Prevention, Shenzhen 518101, Guangdong China
| | - S C Zhang
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - X Wang
- Baoan District Center for Disease Control and Prevention, Shenzhen 518101, Guangdong China
| | - Q Zong
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - S M Tao
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - D L Li
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - W W Liu
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - J Tong
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - T T Li
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - Q L Wang
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - Y Zhang
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
| | - F B Tao
- Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Health Education of Birth Population/Anhui Key Laboratory of Population Health and Aristogenics Hefei 230032, China
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10
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Zhang QQ, Xiong J, Lu DL, Wang ZX, Sun SY, Liu WW. [Expression and clinical significance of CXC chemokine ligand 10 in glioma]. Zhonghua Yi Xue Za Zhi 2021; 101:1031-1035. [PMID: 33845543 DOI: 10.3760/cma.j.cn112137-20201020-02883] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the expression of CXC chemokine ligand 10 (CXCL10) in glioma and its clinical significance through bioinformatics. Methods: The expression level of CXCL10 in glioma, and its prognostic significance, gene ontology (GO) function annotation, Kyoto Encyclopedia of Genes and Genome (KEGG) pathway enrichment and the correlation of tumor cell purity were analyzed in TCGA, CGGA, MetaScape, TIMER databases. In addition, 34 clinical glioma tissues were collected for Western Blot and immunohistochemistry to further verify the correlation between CXCL10 and glioma. Results: CGGA and TCGA database analysis showed that with the increase of WHO grade, the expression of CXCL10 in gliomas increased (P<0.01). The overall survival rate of patients with high CXCL10 expression was significantly lower than that of patients with low expression (χ2 =148.1,P<0.05). Among patients with grade Ⅳ glioblastoma who received radiotherapy or chemotherapy, the patients with low CXCL10 expression were associated with good survival (χ2 =6.714,P<0.05;χ2 =5.618,P<0.05). Moreover, GO and KEGG analysis showed that genes co-expressed with CXCL10 were mainly enriched in the biological processes such as cytokine-mediated signaling pathways, regulating adaptive immune responses and inflammatory responses. Furthermore, TIMER database analysis showed that CXCL10 was negatively correlated with the purity of glioma cells (LGG: r=-0.129;GBM: r=-0.165;P<0.05). Similarly, clinical sample analysis also showed that the expression level of CXCL10 increased in glioma, and it increased with the grade of glioma (all P<0.05). Conclusion: The expression of CXCL10 is up-regulated in glioma as well as it increased with the malignant degree of glioma. At the same time, the high expression of CXCL10 in glioma is closely related to the poor prognosis of patients.
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Affiliation(s)
- Q Q Zhang
- Department of Radiation Oncology, the Second Affiliated Hospital of Guangxi Medical University, Nanning 530000, China
| | - J Xiong
- Department of Geriatric Medicine, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - D L Lu
- Department of Neurosurgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Z X Wang
- Department of Geriatric Medicine, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - S Y Sun
- Department of Geriatric Medicine, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - W W Liu
- Department of Radiation Oncology, the Second Affiliated Hospital of Guangxi Medical University, Nanning 530000, China
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11
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Wu Q, Xu Q, Zhou X, Liu KM, Cui LB, Liu WW. [Etiological characteristics of hand, foot and mouth disease in Yangzhou from 2015 to 2019]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:394-398. [PMID: 33730832 DOI: 10.3760/cma.j.cn112150-20200512-00721] [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: 06/12/2023]
Abstract
To understand the prevalence and etiological characteristics of hand, foot and mouth disease(HFMD) in Yangzhou, so as to provide scientific basis for prevention and control of HFMD. HFMD cases from six sentinel hospitals in Yangzhou from January 2015 to December 2019 were taken as the subject of study. The epidemiological data of HFMD were analyzed by descriptive epidemiology method, the enterovirus were detected using RT-PCR method and the etiological characteristics were analyzed. The data were collected by Excel 2007 and statistically analyzed by SPSS22.0 software. A total of 1 151 positive cases were detected from all 2 129 HFMD clinical specimens collected in Yangzhou from 2015 to 2019, with a total positive rate of 54.06%, including 148 cases of EV71(6.95%), 382 cases of CA16(17.94%) and 621 cases of other enterovirus(29.17%). The difference of positive rate in different years(χ2=99.28, P<0.05), different months(χ2=92.09, P<0.05) and different districts(χ2=71.39, P<0.05)was statistically significant. Each subtype of enterovirus showed alternating prevalence in different years. The peak period of detection rate was from April to September (720 cases, 62.55%). The reported incidence for males was higher than females, with the male-female ratio of 1.58∶1 and children under six (971 cases, 84.36%) as the major attacked population. There were obvious seasonal, regional and population characteristics of HFMD in Yangzhou City from 2015 to 2019. It reminds us that surveillance of HFMD should be continually implemented, more attention should be paid to the prevention and control of key population in high-risk seasons, and the booming HFMD cases caused by other enterovirus should be emphasized especially.
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Affiliation(s)
- Q Wu
- Molecular Diagnostic Laboratory, Northern Jiangsu People's Hospital,Yangzhou 225001, China
| | - Q Xu
- Department of Clinical Laboratory, Yangzhou Center for Disease Control and Prevention, Yangzhou 225001, China
| | - X Zhou
- Department of Clinical Laboratory, Yangzhou Center for Disease Control and Prevention, Yangzhou 225001, China
| | - K M Liu
- Department of Clinical Laboratory, Hanjiang Maternal and Child Care Service Institution of Yangzhou, Yangzhou 225012, China
| | - L B Cui
- Pathogenic Microbiology Institute, Jiangsu Center for Disease Control and Prevention,Nanjing 210009, China
| | - W W Liu
- Department of Clinical Laboratory, Yangzhou Center for Disease Control and Prevention, Yangzhou 225001, China
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12
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Liu WW, Wu XY, Tao SM, Ding P, Geng ML, Tao FB. [Emotional and behavioral problems associated with health-risk behaviors in preschool children]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:1255-1260. [PMID: 33147926 DOI: 10.3760/cma.j.cn112150-20200706-00975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To explore the relationship between multiple health-risk behaviors and emotional and behavioral problems in preschool children. Method: From October to November 2017, 27 987 children aged 3 to 6 years from 109 kindergartens of 11 cities from Hubei, Anhui and Jiangsu Provinces in the middle and lower reaches of the Yangtze River were selected by using the cluster sampling method. Finally, 27 200 valid questionnaires were collected. A questionnaire was used to investigate the demographic characteristics, video time and outdoor activities, eating behavior, sleep time, emotional and behavioral problems of parents and children. Multivariate logistic regression model was used to quantify the association between multiple health-risk behaviors and emotional and behavioral problems. Results: Emotional symptoms, conduct problems, hyperactivity, peer problems, total difficulties and prosocial behavior abnormalities were detected in 9.5% (2 587), 9.5% (2 590), 18.2% (4 958), 24.5% (6 670), 11.2% (3 058) and 10.2% (2 770), respectively. Three groups of low, medium and high scores of multiple health-risk behaviors were accounted for 30.6% (8 316), 60.9% (16 568) and 8.5% (2 316), respectively. Multivariate logistic regression model analysis showed that after controlling for the confounding factors, compared with those in the low score group, preschool children in the middle and high score groups had higher risks of emotional symptoms, conduct problems, hyperactivity, peer problems, total difficulties and prosocial behavior (all P values<0.05). Conclusion: Health-risk behaviors are associated with the emotional and behavioral problems of preschool children.
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Affiliation(s)
- W W Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Population Health Across Life Cycle, Ministry of Education of the People's Republic of China/Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health and Health Commission of the People's Republic of China/Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - X Y Wu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Population Health Across Life Cycle, Ministry of Education of the People's Republic of China/Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health and Health Commission of the People's Republic of China/Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - S M Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Population Health Across Life Cycle, Ministry of Education of the People's Republic of China/Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health and Health Commission of the People's Republic of China/Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - P Ding
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Population Health Across Life Cycle, Ministry of Education of the People's Republic of China/Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health and Health Commission of the People's Republic of China/Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - M L Geng
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Population Health Across Life Cycle, Ministry of Education of the People's Republic of China/Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health and Health Commission of the People's Republic of China/Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
| | - F B Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Key Laboratory of Population Health Across Life Cycle, Ministry of Education of the People's Republic of China/Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, National Health and Health Commission of the People's Republic of China/Anhui Provincial Key Laboratory of Population Health and Aristogenics, Hefei 230032, China
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13
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Liu WW, Zhang YH. [Progress in GATOR1 protein complex and related epilepsy]. Zhonghua Er Ke Za Zhi 2020; 58:945-948. [PMID: 33120472 DOI: 10.3760/cma.j.cn112140-20200901-00840] [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: 06/11/2023]
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14
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Shao HY, Fan ZM, Dong ZP, Yang B, Liu WW, Shi MG. [Analysis of new pneumoconiosis in Yantai from 2010 to 2019]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:427-430. [PMID: 32629571 DOI: 10.3760/cma.j.cn121094-20190909-00371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the characteristics of new cases of pneumoconiosis in Yantai from 2010 to 2019, and to provide scientific basis for the prevention and control of pneumoconiosis. Methods: In March 2020, 2575 new pneumoconiosis cases in Yantai City from January 1, 2010 to December 31, 2019 were obtained through the "Health Hazard Information Monitoring System" platform under "China Disease Prevention and Control Information System" and patient hospital files. Excel 2007 was used to sort out the database of pneumoconiosis and analyze the epidemiological characteristics of new pneumoconiosis, including gender, age, length of service, type of work, etc. Results: From 2010 to 2019, the majority of new pneumoconiosis cases were male (2542 cases, 98.72%) , and the age of onset was 40-<60 years old (2074 cases, 80.54%) . The main age of onset was 15-<30 years (1534 cases, 59.57%) . Silicosis was the most common type of new pneumoconiosis (2313 cases, 89.83%) . There were 2262 cases (87.84%) with one stage of pneumoconiosis. The main types of work were rock driller (799 cases, 31.03%) , hauler (797 cases, 30.95%) , other mine workers (391 cases, 15.18%) . The economic type of enterprises was mainly state-owned enterprises (1156 cases, 44.89%) . The scale of enterprises mainly concentrated in large enterprises (1897 cases, 73.67%) . Conclusion: The new pneumoconiosis in Yantai City shows obvious concentration of disease and work types.It is necessary to strengthen the prevention and treatment of silicosis and the training of protection knowledge for rock drillers and transport workers.
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Affiliation(s)
- H Y Shao
- Department of Occupational Diseases, Yantaishan Hospital, Yantai 264000, China
| | - Z M Fan
- Department of Occupational Diseases, Yantaishan Hospital, Yantai 264000, China
| | - Z P Dong
- Department of Occupational Diseases, Yantaishan Hospital, Yantai 264000, China
| | - B Yang
- Department of Occupational Diseases, Yantaishan Hospital, Yantai 264000, China
| | - W W Liu
- Department of Occupational Diseases, Yantaishan Hospital, Yantai 264000, China
| | - M G Shi
- Department of Occupational Diseases, Yantaishan Hospital, Yantai 264000, China
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15
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Fan ZM, Shao HY, Yang B, Dong ZP, Liu WW, Shi MG. [Clinical study of sequential glucocorticoids in the treatment of acute mercury poisoning complicated with interstitial pneumonia]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:621-624. [PMID: 32892595 DOI: 10.3760/cma.j.cn121094-20191009-00468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the clinical efficacy of sequential glucocorticoids in the treatment of acute mercury poisoning complicated with interstitial pneumonia. Methods: Retrospective analysis of 37 patients with acute mercury poisoning complicated with interstitial pneumonia admitted from January 2009 to April 2019, including the sequential treatment group (15 cases) and the conventional treatment group (22 cases) , all patients were treated with sodium dimercaptopropane sulfonate, and given anti-inflammatory, liver-protecting and other drugs for symptomatic treatment. The conventional treatment group was given methylprednisolone 1mg/kg once a day for 5-7 days. The sequential treatment group was given 1 mg/kg of methylprednisolone once a day for 5-7 days, then gradually reduced to 20 mg, and the total course of treatment was 14-21 days. To observe the changes of clinical symptoms, signs, lung function including forced vital capacity (FVC) , forced expiratory volume in the first second (FEV(1)) and ratio of forced expiratory volume in the first second to forced vital capacity (FEV(1)/FVC) , and chest CT indexes before and after treatment in the two groups. Results: The clinical symptoms and signs of the two groups were significantly improved compared with those before treatment, and there was no significant difference between the apparent efficiency and the total effective rate of the two groups (P>0.05) . The FVC, FEV(1), and FEV(1)/FVC of the two groups were significantly higher than those before treatment. After treatment, the indexes of the sequential treatment group were significantly higher than that of the conventional treatment group, and the difference was statistically significant (P<0.05) . The apparent efficiency (93.3%, 14/15) of CT lesions in the sequential treatment group was significantly higher than those of the conventional treatment group (59.1%, 13/22) , and the difference was statistically significant (P< 0.05) . Conclusion: Sequential glucocorticoid treatment of acute mercury poisoning complicated with interstitial pneumonia could improve the effect of clinical signs and symptoms which is equal to conventional treatment, but it could better promote the recovery of lung function and the absorption of lung lesions.
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Affiliation(s)
- Z M Fan
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
| | - H Y Shao
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
| | - B Yang
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
| | - Z P Dong
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
| | - W W Liu
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
| | - M G Shi
- Department of Occupational Diseases, Yantai Shan Hospital, Yantai 264025, China
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16
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Abstract
Guided by sight, scent, texture, and taste, animals ingest food. Once ingested, it is up to the gut to make sense of the food's nutritional value. Classic sensory systems rely on neuroepithelial circuits to convert stimuli into signals that guide behavior. However, sensation of the gut milieu was thought to be mediated only by the passive release of hormones until the discovery of synapses in enteroendocrine cells. These are gut sensory epithelial cells, and those that form synapses are referred to as neuropod cells. Neuropod cells provide the foundation for the gut to transduce sensory signals from the intestinal milieu to the brain through fast neurotransmission onto neurons, including those of the vagus nerve. These findings have sparked a new field of exploration in sensory neurobiology-that of gut-brain sensory transduction.
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Affiliation(s)
- Melanie Maya Kaelberer
- Gut-Brain Neurobiology Laboratory, Department of Medicine, School of Medicine, Duke University, Durham, North Carolina 27710, USA;
| | - Laura E Rupprecht
- Gut-Brain Neurobiology Laboratory, Department of Medicine, School of Medicine, Duke University, Durham, North Carolina 27710, USA;
| | - Winston W Liu
- Gut-Brain Neurobiology Laboratory, Department of Medicine, School of Medicine, Duke University, Durham, North Carolina 27710, USA; .,School of Medicine, Duke University, Durham, North Carolina 27710, USA
| | - Peter Weng
- Gut-Brain Neurobiology Laboratory, Department of Medicine, School of Medicine, Duke University, Durham, North Carolina 27710, USA; .,School of Medicine, Duke University, Durham, North Carolina 27710, USA
| | - Diego V Bohórquez
- Gut-Brain Neurobiology Laboratory, Department of Medicine, School of Medicine, Duke University, Durham, North Carolina 27710, USA; .,Department of Neurobiology, Duke University, Durham, North Carolina 27710, USA
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17
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Liu M, Xu HL, Yuan M, Liu ZR, Wu XY, Zhang Y, Ma LY, Gong L, Gan H, Liu WW, Tao SM, Zong Q, Du YN, Tao FB. [Analysis on epidemic situation and spatiotemporal changes of COVID-19 in Anhui]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:630-633. [PMID: 32107910 DOI: 10.3760/cma.j.cn112150-20200221-00150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We used the epidemic data of COVID-19 published on the official website of the municipal health commissions in Anhui province to map the spatiotemporal changes of confirmed cases, fit the epidemic situation by the population growth curve at different stages and analyze the epidemic situation in Anhui Province. It was found that the cumulative incidence of COVID-19 was 156/100 000 by February 18, 2020 and the trend of COVID-19 epidemic declined after February 7 with a change from J-shaped curve to S-shaped curve. As the reporting time of cases might be 3-5 days later than the actual onset time, the number of new cases in Anhui province actually began to decline around February 2 to February 4, 2020.
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Affiliation(s)
- M Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - H L Xu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - M Yuan
- Center for Big Data Science in Health, School of Health Service Management, Anhui Medical University, Hefei 230032, China
| | - Z R Liu
- Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - X Y Wu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - Y Zhang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - L Y Ma
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - L Gong
- Department of Health Emergecy Management and Acute Infectious Disease Prevention, Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - H Gan
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - W W Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - S M Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - Q Zong
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
| | - Y N Du
- Center for Big Data Science in Health, School of Health Service Management, Anhui Medical University, Hefei 230032, China
| | - F B Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Population Health Across Life Cycle,Ministry of Education of the People's Republic of China/National Health Commission Key Laboratory of Study on Abnormal Gametes and Reproductive Tract,Hefei 230032, China
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18
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Abstract
Guided by sight, scent, texture, and taste, animals ingest food. Once ingested, it is up to the gut to make sense of the food's nutritional value. Classic sensory systems rely on neuroepithelial circuits to convert stimuli into signals that guide behavior. However, sensation of the gut milieu was thought to be mediated only by the passive release of hormones until the discovery of synapses in enteroendocrine cells. These are gut sensory epithelial cells, and those that form synapses are referred to as neuropod cells. Neuropod cells provide the foundation for the gut to transduce sensory signals from the intestinal milieu to the brain through fast neurotransmission onto neurons, including those of the vagus nerve. These findings have sparked a new field of exploration in sensory neurobiology-that of gut-brain sensory transduction.
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Affiliation(s)
- Melanie Maya Kaelberer
- Gut-Brain Neurobiology Laboratory, Department of Medicine, School of Medicine, Duke University, Durham, North Carolina 27710, USA;
| | - Laura E Rupprecht
- Gut-Brain Neurobiology Laboratory, Department of Medicine, School of Medicine, Duke University, Durham, North Carolina 27710, USA;
| | - Winston W Liu
- Gut-Brain Neurobiology Laboratory, Department of Medicine, School of Medicine, Duke University, Durham, North Carolina 27710, USA; .,School of Medicine, Duke University, Durham, North Carolina 27710, USA
| | - Peter Weng
- Gut-Brain Neurobiology Laboratory, Department of Medicine, School of Medicine, Duke University, Durham, North Carolina 27710, USA; .,School of Medicine, Duke University, Durham, North Carolina 27710, USA
| | - Diego V Bohórquez
- Gut-Brain Neurobiology Laboratory, Department of Medicine, School of Medicine, Duke University, Durham, North Carolina 27710, USA; .,Department of Neurobiology, Duke University, Durham, North Carolina 27710, USA
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19
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Dong ZP, Shi MG, Liu WW, Zhan B. [Two cases of occupational chronic severe carbon disulfide poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:471-472. [PMID: 31256536 DOI: 10.3760/cma.j.issn.1001-9391.2019.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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20
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Tang SH, Du WJ, Zhang H, Zhang YL, Zhang JW, Liu WW, Liu YM. [An investigation of an accident of acute mixed gas poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:466-468. [PMID: 31256534 DOI: 10.3760/cma.j.issn.1001-9391.2019.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
An accident of mixed acute gas poisoning accident happened in a place in GuangDong in March 2018. To investigates three poisoning workers and related clinical data were summarized., we tested the field air and analyzed the accident reasons. This event due to the staff lack of occupational protection awareness and illegal operation. The working environment must be ventilated before limited space operation, and must be sure that the limited space is safe by toxic gas monitoring. In case of occupational acute gas poisoning, rescuers should help the persons who are poisoned reasonably and meanwhile their own safety.
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Affiliation(s)
- S H Tang
- Guangzhou Prevention and Treatment Center for Occupational Diseases, The Guangzhou Twelfth Municipal People`s Hospital, Guangzhou Key Medical Disciplines and Specialities of Occupational Health Surveillance, The Institute of Occupational and Environmental Health, Guangzhou, 510620, China
| | - W J Du
- Guangzhou Prevention and Treatment Center for Occupational Diseases, The Guangzhou Twelfth Municipal People`s Hospital, Guangzhou Key Medical Disciplines and Specialities of Occupational Health Surveillance, The Institute of Occupational and Environmental Health, Guangzhou, 510620, China
| | - H Zhang
- Guangzhou Prevention and Treatment Center for Occupational Diseases, The Guangzhou Twelfth Municipal People`s Hospital, Guangzhou Key Medical Disciplines and Specialities of Occupational Health Surveillance, The Institute of Occupational and Environmental Health, Guangzhou, 510620, China
| | - Y L Zhang
- Guangzhou Prevention and Treatment Center for Occupational Diseases, The Guangzhou Twelfth Municipal People`s Hospital, Guangzhou Key Medical Disciplines and Specialities of Occupational Health Surveillance, The Institute of Occupational and Environmental Health, Guangzhou, 510620, China
| | - J W Zhang
- Guangzhou Prevention and Treatment Center for Occupational Diseases, The Guangzhou Twelfth Municipal People`s Hospital, Guangzhou Key Medical Disciplines and Specialities of Occupational Health Surveillance, The Institute of Occupational and Environmental Health, Guangzhou, 510620, China
| | - W W Liu
- Guangzhou Prevention and Treatment Center for Occupational Diseases, The Guangzhou Twelfth Municipal People`s Hospital, Guangzhou Key Medical Disciplines and Specialities of Occupational Health Surveillance, The Institute of Occupational and Environmental Health, Guangzhou, 510620, China
| | - Y M Liu
- Guangzhou Prevention and Treatment Center for Occupational Diseases, The Guangzhou Twelfth Municipal People`s Hospital, Guangzhou Key Medical Disciplines and Specialities of Occupational Health Surveillance, The Institute of Occupational and Environmental Health, Guangzhou, 510620, China; School of Public Health, Sun Yat-Sen Univercity, Guangzhou, 510080, China
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21
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Teng GE, Wang QQ, Kong JL, Dong LQ, Cui XT, Liu WW, Wei K, Xiangli WT. Extending the spectral database of laser-induced breakdown spectroscopy with generative adversarial nets. Opt Express 2019; 27:6958-6969. [PMID: 30876270 DOI: 10.1364/oe.27.006958] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 02/13/2019] [Indexed: 06/09/2023]
Abstract
As a famous spectroscopy method for substance detection and classification, laser-induced breakdown spectroscopy (LIBS) is not a nondestructive detection method. Considering the precious samples and the experimental environment, sometimes it is difficult to get enough spectra to build the classification model, which is important for qualitative analysis. In this paper, a spectral generation method for extending the spectral database of LIBS is proposed based on generative adversarial nets (GAN). After enough interactive training, the generated spectra looked very similar to the experimental spectra. Evaluated with unsupervised clustering methods PCA and K-means, the generated spectra could not be distinguished from the real spectra. For each type of sample, most of the simulated spectra and experimental spectra were clustered into the same class, which meant the proposed method was effective to extend the spectral database. Using the spectral database extended by this method as training set data to build the SVM model, the results showed that when there were only a few experimental spectra, the combination of the generated spectra and the experimental spectra for building the classification model could achieve better identification results.
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22
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Liu ML, Liu WW. [Focus on aspirin primary prevention]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:85-87. [PMID: 30818934 DOI: 10.3760/cma.j.issn.0253-3758.2019.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- M L Liu
- Department of Geriatrics, Peking University First Hospital, Beijing 100034, China
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Gao MQ, Shi JJ, Liu WW, Wan R, Huang XF, Huang AM, Zhang WM. [Improved and optimized preparation technology of agarose cell block]. Zhonghua Bing Li Xue Za Zhi 2019; 48:151-153. [PMID: 30695872 DOI: 10.3760/cma.j.issn.0529-5807.2019.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M Q Gao
- Research Centre of School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, China; Department of Pathology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, China
| | - J J Shi
- Research Centre of School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, China; Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou 350122, China
| | - W W Liu
- Department of Pathology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, China
| | - R Wan
- Department of Pathology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, China
| | - X F Huang
- Department of Pathology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, China
| | - A M Huang
- Department of Pathology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, China
| | - W M Zhang
- Department of Pathology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, China
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Ding XL, Zhu PF, Huang CH, Zhang Q, Zhu JY, Liu WW, Zhou WJ. [The transformation of microcystin-LR during tap water treatment process and analysis of its degradation products]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:898-903. [PMID: 30196635 DOI: 10.3760/cma.j.issn.0253-9624.2018.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To establish a liquid chromatography-tandem mass spectrometry (LC/MS/MS) method for the determination of microcystin-LR (MC-LR) in drinking water, investigate its removal efficiency during tap water advanced treatment process and analyze its degradation products in the tap water. Methods: Two parallel water samples were collected from each point of tap water advanced treatment process in September 2015, November 2015 and January 2016, respectively, and treated by mixing, filtration, concentration, elution, nitrogen blow and re-dissolvement. The samples were analyzed by LC/MS/MS to determine the MC-LR concentration and its removal efficiency during treatment process. The combination of actual water enrichment (including source water enrichment of 50 times and 1 500 times concentrated, finished water enrichment of 50 times and 2 500 times concentrated) and laboratory simulated water (including the mixture of MC-LR and liquid chlorine in the mass ratio of 1∶10, 1∶20, 1∶100 and 1∶1 000, respectively) were used to qualitative analyze the MC-LR degradation products by Orbitrap mass spectrometry. Results: The linearity of MC-LR ranged from 2 to 200 μg/L with the detection limit of 0.007 9 μg/L and the limit of quantification of 0.026 3 μg/L. The recovery rate of MC-LR from different contration in drinking water were from 94.88%-101.47%. The intra-day precision was 2.51%-7.93% and the intra-day precision was 3.24%-8.41%. The average concentration of MC-LR in source water was (0.631±0.262) μg/L, 94.0% of which can be removed by ozone exposure while the concentrate was (0.038±0.016) μg/L, biological pre-treatment and chlorination. The remaining can hardly be removed by sand filtration, ozone exposure, activated carbon, ultrafiltration and other processes. The MC-LR average concentration in the finished water maintained at about (0.036±0.016) μg/L. Degradation products including hydroxy-microcystin, methyl-hydroxy-microcystin, methyl-microcystin were identified in the laboratory simulated water of the mixture of MC-LR and liquid chlorine in the mass ratio of 1∶10. Conclusion: The established MC-LR detection method can be well applied to the monitoring of MC-LR in drinking water due to its simple pre-treatment process and good methodological validation parameters. The degradation products of treatment processes was different.
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Affiliation(s)
- X L Ding
- Department of Public Health, Wuxi Center for Disease Control and Prevention, Wuxi 214023, China
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25
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Liu WW, Shen XJ, Ju SQ. [Progress of long non-coding RNA in regulating cell autophagy in cancer]. Zhonghua Zhong Liu Za Zhi 2018; 40:321-324. [PMID: 29860756 DOI: 10.3760/cma.j.issn.0253-3766.2018.05.001] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The initiation of tumor is a complex process with multi-factor participation, particularly the activation of oncogenes and/or inactivation of tumor suppressor genes. Long non-coding RNAs (lncRNAs) play important roles in tumorigenesis. Additionally, as a metabolic process in cells, autophagy also contributes greatly to differentiation, metastasis and chemoresistance of tumor cells, and has become a central topic in recent years. The understanding of connection between lncRNAs and autophagy as well as their mechanisms underlying tumorigenesis, can provide new ideas for the diagnosis and treatment of tumors.
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Affiliation(s)
- W W Liu
- Department of Clinical Laboratory, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - X J Shen
- Department of Clinical Laboratory, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - S Q Ju
- Department of Clinical Laboratory, Affiliated Hospital of Nantong University, Nantong 226001, China
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Murphy K, Liu WW, Goltz D, Fixsen E, Kirchner S, Hu J, White H. Implementation of personalized music listening for assisted living residents with dementia. Geriatr Nurs 2018; 39:560-565. [PMID: 29731392 DOI: 10.1016/j.gerinurse.2018.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 03/26/2018] [Accepted: 04/02/2018] [Indexed: 11/17/2022]
Abstract
Personalized music listening (PML) has been touted as a safe and inexpensive means of improving the quality of life, mood, and behavior of persons with dementia. A PML program was implemented in an assisted living facility and evaluated across the five dimensions of the RE-AIM framework: reach, effectiveness, adoption, implementation, and maintenance. The first 17 residents invited to participate were enrolled and followed over eight months. Effectiveness was evident in staff-reported mood improvement in 62% of encounters. Adoption was evident in qualitative feedback collected from medication technicians. Implementation was facilitated by low costs, engagement of external volunteers, highlighting outcomes that are relevant to staff, and attention to playlists over time. Maintenance required continued engagement of volunteers, ongoing fundraising, attention to facility staff engagement, and iterative adjustments to the program framework as staffing changes occurred. PML was found to be a meaningful intervention that is possible at a reasonable cost.
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Affiliation(s)
- Kelly Murphy
- Duke University School of Medicine, Durham, NC 27713
| | - Winston W Liu
- Duke University School of Medicine, Durham, NC 27713.
| | - Daniel Goltz
- Duke University School of Medicine, Durham, NC 27713
| | - Emma Fixsen
- Duke University School of Medicine, Durham, NC 27713
| | | | - Janice Hu
- Duke University School of Medicine, Durham, NC 27713
| | - Heidi White
- Division of Geriatrics, Department of Medicine, Duke University School of Medicine, Durham, NC 27713
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Hu ZF, Xu CS, Ma SL, Liu WW. [Epidemiological and clinical characteristics of 109 patients with crayfish-related rhabdomyolysis]. Zhonghua Nei Ke Za Zhi 2018; 57:358-360. [PMID: 29747293 DOI: 10.3760/cma.j.issn.0578-1426.2018.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A total of 109 in patients with crayfish-related rhabdomyolysis were enrolled in our hospital from July to August 2016,including 31.2%(34/109)males and 68.8% (75/109)females.The number of home-cooked crayfish accounted for 60.6% (66/109). Main symptom was back pain 96.3% (105/109). The misdiagnosis rate was 15.6% (17/109). On day 1, 2, 3 after admission and the day before discharge,serum creatine kinase were 1 175(446, 2 258)IU/L,3 710(2 137, 8 875)IU/L,1 899(1 063, 4 595)IU/L and 317(152, 532)IU/L,respectively(P<0.001).Serum myoglobin were (603±484)μg/L,(313±284)μg/L,(104±74)μg/L and (55±20)μg/L,respectively(F=39.1, P<0.001).Females were more susceptible to crayfish-related rhabdomyolysis. Home-cooked crayfish is prone to induce rhabdomyolysis and easily to be misdiagnosed. Creatine kinase and myoglobin showed characteristic dynamic changes.
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Affiliation(s)
- Z F Hu
- Department of Emergency Medicine, Zhongda Hospital of Southeast University, Nanjing 210009, China
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Han CH, Guan ZB, Zhang PX, Fang HL, Li L, Zhang HM, Zhou FJ, Mao YF, Liu WW. Oxidative stress induced necroptosis activation is involved in the pathogenesis of hyperoxic acute lung injury. Biochem Biophys Res Commun 2017; 495:2178-2183. [PMID: 29269294 DOI: 10.1016/j.bbrc.2017.12.100] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 12/18/2017] [Indexed: 01/24/2023]
Abstract
Necroptosis has been found to be involved in the pathogenesis of some lung diseases, but its role in hyperoxic acute lung injury (HALI) is still unclear. This study aimed to investigate contribution of necroptosis to the pathogenesis of HALI induced by hyperbaric hyperoxia exposure in a rat model. Rats were divided into control group, HALI group, Nec-1 (necroptosis inhibitor) group and edaravone group. Rats were exposed to pure oxygen at 250 kPa for 6 h to induce HALI. At 30 min before hyperoxia exposure, rats were intraperitoneally injected with Nec-1 or edaravone, and sacrificed at 24 h after hyperoxia exposure. Lung injury was evaluated by histology, lung water to dry ratio (W/D) and bronchoalveolar lavage fluid (BALF) biochemistry; the serum and plasma oxidative stress, expression of RIP1, RIP3 and MLKL, and interaction between RIP1 and RIP3 were determined. Results showed hyperoxia exposure significantly caused damage to lung and increased necroptotic cells and the expression of RIP1, RIP3 and MLKL. Edaravone pre-treatment not only inhibited the oxidative stress in HALI, but also reduced necroptotic cells, decreased the expression of RIP1, RIP3 and MLKL and improved lung pathology. Nec-1 pretreatment inhibited necroptosis and improved lung pathology, but had little influence on oxidative stress. This study suggests hyperoxia exposure induces oxidative stress may activate necroptosis, involving in the pathology of HALI, and strategies targeting necroptosis may become promising treatments for HALI.
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Affiliation(s)
- C H Han
- Department of Pathology, The First Hospital of Jining City, Jining City, Shandong Province, 272011, China
| | - Z B Guan
- Department of Respiratory Diseases, The 411th Hospital of People's Liberation Army, Shanghai, 200081, China
| | - P X Zhang
- Department of Cardiothoracic Surgery, The First Hospital of Jining City, Jining City, Shandong Province, 272011, China
| | - H L Fang
- Department of Pathology, The First Hospital of Jining City, Jining City, Shandong Province, 272011, China
| | - L Li
- Department of Pathology, The First Hospital of Jining City, Jining City, Shandong Province, 272011, China
| | - H M Zhang
- Department of Pathology, The First Hospital of Jining City, Jining City, Shandong Province, 272011, China
| | - F J Zhou
- Department of Pathology, The First Hospital of Jining City, Jining City, Shandong Province, 272011, China
| | - Y F Mao
- Department of Anesthesiology and Surgical Intensive Care Unit, XinHua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200092, China.
| | - W W Liu
- Department of Diving and Hyperbaric Medicine, The Naval Medical University, Shanghai, 200433, China.
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Zhang JW, Liu WW, McCaffrey TA, He XQ, Liang WY, Chen XH, Feng XR, Fu SW, Liu ML. Predictors of high on-aspirin platelet reactivity in elderly patients with coronary artery disease. Clin Interv Aging 2017; 12:1271-1279. [PMID: 28848334 PMCID: PMC5557114 DOI: 10.2147/cia.s138592] [Citation(s) in RCA: 9] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Objectives Previous studies have illustrated the link between high on-aspirin platelet reactivity (HAPR) with increasing thrombotic risks. The aim of our study was to investigate relative risk factors of HAPR in elderly patients with coronary artery disease. Methods Elderly, hospitalized coronary artery disease patients on regular aspirin treatment were enrolled from January 2014 to September 2016. Medical records of each patient were collected, including demographic information, cardiovascular risk factors, concomitant drugs and routine biological parameters. Arachidonic acid (AA, 0.5 mg/mL) and adenosine diphosphate (ADP, 5 µmol/L) induced platelet aggregation were measured via light transmission assay (LTA) to evaluate antiplatelet responses, referred as LTA–AA and LTA–ADP. Results A total of 275 elderly patients were included, with mean age of 77.2±8.1 years, and males accounted for 81.8%. HAPR was defined as LTA–AA in the upper quartile of the enrolled population. HAPR patients tended to have lower renal function (P=0.052). Higher serum uric acid (SUA) level, as well as lower platelet count, hemoglobin and hematocrit were observed in HAPR patients, with a higher proportion of diuretics use (P<0.05). Multivariate analysis revealed that SUA (OR: 1.004, 95% CI: 1.000–1.007, P=0.048), platelet count (OR: 0.994, 95% CI: 0.989–1.000, P=0.045), hematocrit (OR: 0.921, 95% CI: 0.864–0.981, P=0.011) and concomitant P2Y12 receptor inhibitors use (OR: 1.965, 95% CI: 1.075–3.592, P=0.028) were correlated with HAPR. Spearman’s correlation analysis demonstrated an inverse association of LTA–AA with hematocrit (r=−0.234, P<0.001), hemoglobin (r=−0.209, P<0.001) and estimated glomerular filtration rate (r=−0.132, P=0.031). Conclusion SUA, platelet count, hematocrit and P2Y12 receptor inhibitors use were independently correlated with HAPR. These parameters might provide novel therapeutic targets for optimizing antiplatelet therapy.
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Affiliation(s)
- J W Zhang
- Department of Geriatrics, Peking University First Hospital, Beijing, China
| | - W W Liu
- Department of Geriatrics, Peking University First Hospital, Beijing, China
| | - Timothy A McCaffrey
- Department of Medicine, George Washington University Medical Center, Washington, DC, USA
| | - X Q He
- Department of Geriatrics, Peking University First Hospital, Beijing, China
| | - W Y Liang
- Department of Geriatrics, Peking University First Hospital, Beijing, China
| | - X H Chen
- Department of Geriatrics, Peking University First Hospital, Beijing, China
| | - X R Feng
- Department of Geriatrics, Peking University First Hospital, Beijing, China
| | - Sidney W Fu
- Department of Medicine, George Washington University Medical Center, Washington, DC, USA
| | - M L Liu
- Department of Geriatrics, Peking University First Hospital, Beijing, China
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Zhang YL, Liu WW, Zeng WY, Lin QH, Liu YM. [A study on the effects of exposure to benzene on the activity of immunoglobulin E]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:380-382. [PMID: 28780802 DOI: 10.3760/cma.j.issn.1001-9391.2017.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To analyze the level of immunoglobulin E (IgE) changes with benzene exposure workers. Methods: Firstly, through occupational health monitoring, 68 hospitalized cases were discovered who were suspected chronic benzene poisoning. Secondly, according to the GBZ68-2013《The diagnosis of occupational benzene poisoning》standard diagnosis and indexing, 68 cases were divided into the benzene poisoning group (n= 29) and the benzene exposure group (n=39) . 50 cases of healthy workers without benzene exposure were for the control group. Use the immune luminescence method to detect IgE levels. Thirdly, Case-control study was used, observing IgE changes though the three groups by statistical analysis. Results: Compared with control group, the level of leukocyte、neutrophil and IgE was drop in benzene exposure group with statistically significant (P<0.05) . Compared with benzene exposure group, IgE of benzene poisoning group was rise, with statistically significant (P<0.05) , IgE of mild benzene poisoning group rise the most obvious, with statistically significant (P<0.05) . Compared with benzene exposure group, IgE of moderate benzene poisoning group was drop, without statistically significant (P>0.05) . Conclusion: Benzene occupational exposure can induce immunosuppression, IgE decreases, and reduces immune surveillance. The response of the IgE level in the mild benzene poisoning patients was significantly elevated, whether it is protective response of the body immune function needs to be studied further investigated.
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Affiliation(s)
- Y L Zhang
- Guangzhou occupational disease prevention and treatment hospital, Guangdong Guangzhou 510620, China
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Welsby IJ, Krakow EF, Heit JA, Williams EC, Arepally GM, Bar-Yosef S, Kong DF, Martinelli S, Dhakal I, Liu WW, Krischer J, Ortel TL. The association of anti-platelet factor 4/heparin antibodies with early and delayed thromboembolism after cardiac surgery. J Thromb Haemost 2017; 15:57-65. [PMID: 27714919 PMCID: PMC5280211 DOI: 10.1111/jth.13533] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Indexed: 12/18/2022]
Abstract
Essentials We evaluated antibody status, thromboembolism and survival after cardiac surgery. Positive antibody tests are common - over 50% are seropositive at 30 days. Seropositivity did not increase thromboembolism or impair survival after cardiac surgery. Results show heparin induced thrombocytopenia antibody screening after surgery is not warranted. SUMMARY Background Heparin-induced thrombocytopenia (HIT) is a prothrombotic response to heparin therapy with platelet-activating, anti-platelet factor 4 (PF4)/heparin antibodies leading to thrombocytopenia associated with thromboembolism. Objective We tested the hypothesis that anti-PF4/heparin antibodies are associated with thromboembolism after cardiac surgery. Methods This multicenter, prospective cohort study collected laboratory and clinical data up to 30 days after surgery and longer-term clinical follow-up data. The primary outcome variable combined new arterial or venous thromboembolic complications (TECs) with all-cause death until 90 days after surgery. Laboratory analyses included platelet counts and anti-PF4/heparin antibody titers (GTI ELISA), with a confirmatory excess heparin step and serotonin release assay. Chi-square testing was used to test the relationship between our outcome and HIT antibody seropositivity. Results Initially, 1021 patients were enrolled between August 2006 and May 2009, and follow-up was completed in December 2014. Seropositivity defined by OD > 0.4 was common, being almost 20% preoperatively, > 30% by discharge, and > 60% by day 30. Death (1.7% within 30 days) or TECs (69 in total) were more likely if the partient was seronegative (OD < 0.4), but positivity defined by OD > 1.0 or including an excess heparin confirmatory step resulted in equal incidence of death or TECs, whether the patient was seronegative or seropositive. Incorporating the serotonin release assay for platelet-activating antibodies did not alter these findings. Conclusions Seropositivity for anti-PF4/heparin antibodies does not increase the risk of death or thromboembolism after cardiac surgery. Screening is not indicated, and seropositivity should only be interpreted in the context of clinical evidence for HIT. TRIAL REGISTRATION Duke IRB Protocol #00010736.
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Affiliation(s)
- I J Welsby
- Department of Anesthesiology and Critical Care, Durham, NC, USA
| | - E F Krakow
- Department of Medicine, Duke University Medical Center, Durham, NC, USA
| | - J A Heit
- Department of Medicine, Division of Cardiovascular Diseases, Mayo Clinic, Durham, NC, USA
| | - E C Williams
- Department of Medicine, Division of Hematology, University of Wisconsin, Durham, NC, USA
| | - G M Arepally
- Department of Medicine, Division of Hematology, Duke University Medical Center, Durham, NC, USA
| | - S Bar-Yosef
- Department of Anesthesiology, Durham VA Medical Center, Durham, NC, USA
| | - D F Kong
- Department of Medicine, Duke University Medical Center, Durham, NC, USA
| | - S Martinelli
- Department of Anesthesiology, University of North Carolina, Durham, NC, USA
| | - I Dhakal
- Department of Biostatistics & Bioinformatics, Duke University Medical Center, Durham, NC, USA
| | - W W Liu
- Department of Biostatistics & Bioinformatics, Duke University Medical Center, Durham, NC, USA
| | - J Krischer
- Pediatric Epidemiology Center, University of South Florida Morsani College of Medicine, Durham, NC, USA
| | - T L Ortel
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
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Liang WY, Liu WW, Liu ML, Xiang W, Feng XR, Huang B, Chen XH, Sun YS. Serum uric acid level and left ventricular hypertrophy in elderly male patients with nonvalvular atrial fibrillation. Nutr Metab Cardiovasc Dis 2016; 26:575-580. [PMID: 27162100 DOI: 10.1016/j.numecd.2016.03.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 03/10/2016] [Accepted: 03/15/2016] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND AIMS Recent studies have suggested that serum uric acid (SUA) induces oxidative stress and inflammation, which are involved in the mechanism of cardiac hypertrophy. In patients with atrial fibrillation (AF), comorbidity of left ventricular hypertrophy (LVH) exacerbates cardiac function. In this study, we investigated the association between SUA and cardiac hypertrophy in AF patients. METHODS AND RESULTS Initially, 1296 consecutive elderly patients (age >60) with nonvalvular AF were retrospectively selected from the inpatient clinic between January 2012 and April 2015. Demographic, clinical, and echocardiographic characteristics were carefully recorded. The final study population was 577 patients. The mean SUA level was significantly higher in patients with LVH than those without LVH. Compared with the non-LVH group, the LVH group was older, had a higher percentage of female patients, and had lower hemoglobin levels and estimated glomerular filtration rates. Patients in the LVH group also had a higher rate of coronary heart disease and fewer had history of radiofrequency ablation compared with the non-LVH group. In the hyperuricemia group, B-type natriuretic peptide levels, left atrial diameter, left ventricular mass index, and percentage of NYHA (New York Heart Association) class III/IV were significantly higher than the SUA normal group. Multivariate logistic regression analysis indicated the independent risk factors for LVH in elderly AF patients included SUA, age, male sex, the presence of coronary heart disease, and diuretic therapy. Subgroup analysis identified SUA as a significant risk factor associated with LVH in men. CONCLUSIONS SUA was independently associated with LVH in elderly male patients with nonvalvular AF.
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Affiliation(s)
- W Y Liang
- Department of Geriatrics, Peking University First Hospital, Beijing, People's Republic of China
| | - W W Liu
- Department of Geriatrics, Peking University First Hospital, Beijing, People's Republic of China
| | - M L Liu
- Department of Geriatrics, Peking University First Hospital, Beijing, People's Republic of China.
| | - W Xiang
- Department of Geriatrics, Peking University First Hospital, Beijing, People's Republic of China
| | - X R Feng
- Department of Geriatrics, Peking University First Hospital, Beijing, People's Republic of China
| | - B Huang
- Department of Geriatrics, Peking University First Hospital, Beijing, People's Republic of China
| | - X H Chen
- Department of Geriatrics, Peking University First Hospital, Beijing, People's Republic of China
| | - Y S Sun
- Department of Geriatrics, Peking University First Hospital, Beijing, People's Republic of China
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Zhang PX, Han CH, Zhou FJ, Li L, Zhang HM, Liu WW. Renin-angiotensin system and its role in hyperoxic acute lung injury. Undersea Hyperb Med 2016; 43:239-246. [PMID: 27416692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Oxygen is essential to sustain life, but at a high partial pressure oxygen may cause toxicity to the human body. These injuries to the lung are known as hyperoxic acute lung injury [HALI]). To date, numerous studies have been conducted to investigate the pathogenesis of HALI, for which some hypotheses have been proposed. Accumulating evidence indicates that the renin-angiotensin system (RAS) plays an important role in the pathogenesis of some lung diseases, including acute lung injury (ALI), chronic obstructive pulmonary disease (COPD) and HALI. In this review, we briefly introduce the classic RAS, local (tissue) RAS and intracellular RAS, and we summarize findings on the relationship between local/classic RAS and HALI. The importance--and ambiguity--of the results of these studies indicate a need for further investigations of the RAS and its role in the patho- genesis of HALI.
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Liu Y, Mao YF, Zheng J, Liu K, Han CH, Liu WW. Roles of transforming growth factor β in hyperoxia-induced lung injury. Undersea Hyperb Med 2016; 43:225-231. [PMID: 27416690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Hyperoxia induced lung injury (HILI) refers to the acute lung injury secondary to prolonged exposure to hyperoxia at elevated partial pressure. With the advent of efficient systems for delivery of high concentrations of oxygen in hospitals, the population at risk for this condition has been markedly increased. Although numerous studies have been conducted to investigate the pathogenesis of HILI, the specific mechanism is still poorly understood and some hypotheses have been proposed. Transforming growth factor β (TGF-β) is a secreted protein that controls proliferation, cellular differentiation and other functions in most cells and is a type of cytokine that plays a role in many diseases. In this mini-review, we summarize the role of TGF-β in HILI according to its relationships with reactive oxygen species (ROS), pro-inflammatory cytokines, cell apoptosis and pulmonary fibrosis. We hope it may help the understanding of pathogenesis of HILI and provide a greater understanding for the target therapy of HILI.
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Li Y, Liu K, Kang ZM, Sun XJ, Liu WW, Mao YF. Helium preconditioning protects against neonatal hypoxia-ischemia via nitric oxide mediated up-regulation of antioxidases in a rat model. Behav Brain Res 2015; 300:31-7. [PMID: 26675888 DOI: 10.1016/j.bbr.2015.12.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 11/29/2015] [Accepted: 12/03/2015] [Indexed: 10/22/2022]
Abstract
This study aimed to investigate the role of nitric oxide (NO) in the neuroprotective effects of helium preconditioning (He-PC) in a neonatal hypoxia/ischemia (HI) rat model. Seven-day old rat pups were divided into normal control group, He-PC group, HI group, He-PC+HI group, L-NAME+HI group and L-NAME+He-PC+HI group. HI was induced by exposure to 80% oxygen for 90 min. He-PC was conducted with 70% helium-30% oxygen for three 5-min periods. Three hours after He-PC, animals in control group and He-PC group were sacrificed, and the brain was collected for the detection of NO content. At 24h after HI, animals in control group, HI group, He-PC+HI group, and L-NAME+He-PC+HI group were sacrificed, and the brain was collected for detection of infarct ratio, antioxidases (SOD, HO-1 and Nrf2), DNA binding activity of Nrf2 and TUNEL staining. Three weeks later, the neurological function and brain atrophy were determined. Results showed pretreatment with L-NAME alone failed to exert protective effect on HI. He-PC significantly increased NO content, reduced the brain infarct area, increased anti-oxidases expression and DNA binding activity of Nrf2, decreased the apoptotic cells, and improved the neurological function and brain atrophy. In addition, this protection was markedly inhibited by L-NAME (a non-selective NOS inhibitor). These findings suggest that the He-PC may induce NO production to activate Nrf2, exerting neuroprotective effect on neonatal HI.
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Affiliation(s)
- Y Li
- Department of Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, No 1665 Kongjiang Road, Yangpu District, Shanghai 200092, China
| | - K Liu
- Department of Diving and Hyperbaric Medicine, Secondary Military Medical University, No 800, Xiangyin Road, Yangpu District, Shanghai 200433, China
| | - Z M Kang
- Department of Diving and Hyperbaric Medicine, Secondary Military Medical University, No 800, Xiangyin Road, Yangpu District, Shanghai 200433, China
| | - X J Sun
- Department of Diving and Hyperbaric Medicine, Secondary Military Medical University, No 800, Xiangyin Road, Yangpu District, Shanghai 200433, China
| | - W W Liu
- Department of Diving and Hyperbaric Medicine, Secondary Military Medical University, No 800, Xiangyin Road, Yangpu District, Shanghai 200433, China.
| | - Y F Mao
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, No 1665 Kongjiang Road, Yangpu District, Shanghai 200092, China.
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Liu WW, Wang HX, Yu W, Bi XY, Chen JY, Chen LZ, Ding L, Han DM, Guo ZK, Lei YX. Treatment of silicosis with hepatocyte growth factor-modified autologous bone marrow stromal cells: a non-randomized study with follow-up. Genet Mol Res 2015; 14:10672-81. [PMID: 26400297 DOI: 10.4238/2015.september.9.7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Pulmonary silicosis is an irreversible and untreatable disease that is characterized by interstitial lesions and perpetual fibrosis in the lungs. This study was performed to determine whether mesenchymal stem cells (MSCs) and hepatocyte growth factor (HGF) could exhibit therapeutic effects on human silicosis. This non-randomized uncontrolled trial comprised four patients with pulmonary silicosis who had developed lung fibrosis and received autologous bone marrow MSCs previously transfected by a vector containing human HGF cDNA (MSCs/HGF). MSCs/HGF were intravenously administered weekly for three consecutive weeks at a dose of 2 x 10(6) cells/kg. Pulmonary function, high kilo-voltage chest X-ray radiography, computed tomography (CT) scan, and peripheral blood lymphocyte subset and serum IgG concentrations were evaluated after cell therapy. The treatment was found to be generally safe. Symptoms such as cough and chest distress gradually ameliorated at six months post-therapy, accompanied by the significant improvement of pulmonary function. The ratios of the peripheral CD4- and CD8- positive cell concentrations were increased (P < 0.05). Furthermore, the serum IgG levels in these patients were decreased and reached the normal range (P < 0.05). CT scans showed partial absorption of the nodular and reticulonodular lesions in the lungs during follow-up of at least 12 months. The effectiveness of this novel regimen observed in these patients suggests that a placebo-controlled clinical trial needs to be developed. This study carries trial registration No. NCT01977131 (ClinicalTrials.gov).
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Affiliation(s)
- W W Liu
- Department of Occupational Diseases, Guangzhou No. 12 People's Hospital Affiliated to Guangzhou Medical University, Guangzhou, China
| | - H X Wang
- Department of Hematology, General Hospital of the Air Force, Beijing, China
| | - W Yu
- Department of Occupational Diseases, Guangzhou No. 12 People's Hospital Affiliated to Guangzhou Medical University, Guangzhou, China
| | - X Y Bi
- Department of Internal Medicine, Guangzhou Development District Hospital, Guangzhou, China
| | - J Y Chen
- Department of Occupational Diseases, Guangzhou No. 12 People's Hospital Affiliated to Guangzhou Medical University, Guangzhou, China
| | - L Z Chen
- Department of Occupational Diseases, Guangzhou No. 12 People's Hospital Affiliated to Guangzhou Medical University, Guangzhou, China
| | - L Ding
- Department of Hematology, General Hospital of the Air Force, Beijing, China
| | - D M Han
- Department of Hematology, General Hospital of the Air Force, Beijing, China
| | - Z K Guo
- Department of Occupational Diseases, Guangzhou No. 12 People's Hospital Affiliated to Guangzhou Medical University, Guangzhou, China
| | - Y X Lei
- School of Public Health, Guangzhou Medical University, China
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Liu WW, Xian LF, Tang GM, Cai ZY, Zheng J, Xu WG. A normobaric gas exposure animal chamber and its validation in hyperoxia exposure. Undersea Hyperb Med 2015; 42:383-388. [PMID: 26591977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We are living in an environment full of gases, and any change in the concentration of a component of the air or contaminants (usually toxic) in the air may significantly threaten human health. Thus, to investigate the influence of gases in animal models it is helpful to elucidate the pathogenesis of gas-related injury. Although there are devices used for gas exposure in animals, there are still limitations in the establishment of these animal models, such as the change in gas concentration during the refreshing of water, food and litter, and the contamination of toxic gases released by animals. Herein, we freshly prepared a chamber for normobaric gas exposure. During the exposure in this chamber, the refreshing of water, food and litter does not require opening of the chamber. The chamber gases are continuously circulated and filtered, and the gas concentration remains very stable. To validate the feasibility of this chamber, rats were exposed to pure oxygen as an example. Results showed that rats with hyperoxia-induced lung injury simulated by pure oxygen exposure displayed the representative characteristics as observed in humans: shortness of breath, lung edema, alveolar septal rupture, infiltration of inflammatory cells, oxidative and inflammatory injury. This suggests that it is feasible to establish animal models using this chamber for the investigation of gas toxicity.
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Cao D, Zheng J, Xian LF, Tang GM, Sun XJ, Xu WG, Tao HY, Liu K, Liu WW. Role of iron in lung injury-induced by hyperoxia. Undersea Hyperb Med 2014; 41:27-31. [PMID: 24649714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Iron is essential to life due to its unusual flexibility in serving as both an electron donor and acceptor. However, free iron can damage tissues by catalyzing the conversion of hydrogen peroxide to free-radical ions that attack lipids, proteins and DNA. Hyperoxia-induced lung injury (HILI) occurs when breathing elevated partial pressure of oxygen (usually > 0.5 atmospheres absolute) for extended periods. A few studies have shown that iron and proteins related to iron metabolism are closely related to HILI, and iron chelation may exert protective effects on HILI. As a rate-limiting enzyme in the degradation of heme, heme oxygenases (HOs) play a crucial role in the iron metabolism. Although some studies have been conducted to investigate the role of HOs in the pathogenesis of HILI, findings still conflict, and HOs of different isoforms may function differently in the pathogenesis of HILI. On the available findings, there might be a beneficial threshold of HO-1 expression in HILI. More studies are required to confirm the above findings and to provide evidence for the clinical treatment of HILI by iron chelation.
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Ye ZH, Zheng J, Liu K, Xj Sun XJ, Liu WW. Prolongation of latency is not enough in prevention of central nervous system oxygen toxicity. Undersea Hyperb Med 2013; 40:473-474. [PMID: 24224291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Xu CM, Liu WW, Liu CJ, Wen C, Lu HF, Wan FS. Mst1 overexpression inhibited the growth of human non-small cell lung cancer in vitro and in vivo. Cancer Gene Ther 2013; 20:453-60. [PMID: 23928732 DOI: 10.1038/cgt.2013.40] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Accepted: 05/19/2013] [Indexed: 01/06/2023]
Abstract
Mammalian STE20-like kinase 1 (Mst1) ubiquitously encodes serine threonine kinase, which is a 59-kDa class II GC kinase that shares 76% identity in amino-acid sequence with MST2, and is the closest mammalian homolog of Drosophila Hippo protein kinase, a major inhibitor of cell proliferation in Drosophila. Recent studies have shown that Mst1 and Mst2 perform tumor-suppressor function in a redundant manner and were originally identified as pro-apoptotic cytoplasmic kinases important for controlling cell growth, proliferation, apoptosis and organ size. We used recombinant eukaryotic expression vector containing human wild-type Mst1 gene to transfect human non-small cell lung cancer (NSCLC) A549 cells in vitro and in vivo. The results showed that Mst1 overexpression inhibited cell proliferation and induced apoptosis of A549 cells, promoted Yes-associated protein (YAP) (Ser127) phosphorylation and downregulated the transcriptional level of Cystein-rich protein connective tissue growth factor (CTGF), amphiregulin (AREG) and Survivin. In human NSCLC-cell-A549-xenograft models, Mst1 gene or cisplatin alone suppressed the growth of tumors and increased the cytoplasm-positive expression levels of YAP and Phospho-YAP (Ser127) proteins; however, their combination had the strongest anticancer effects. Overall, Mst1 has an important role in inhibiting the growth of NSCLC in vitro and in vivo; its antiproliferative effect is associated with induction of apoptosis through promotion of the cytoplasmic localization and phosphorylation of YAP protein at Ser127 site, indicating that Mst1 may be developed as a promising therapeutic target for NSCLC.
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Affiliation(s)
- C M Xu
- Department of Biochemistry and Molecular Biology, Basic Medical College of Nanchang University, Nanchang, China
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Webster RG, Cossins J, Lashley D, Maxwell S, Liu WW, Wickens JR, Martinez-Martinez P, de Baets M, Beeson D. A mouse model of the slow channel myasthenic syndrome: Neuromuscular physiology and effects of ephedrine treatment. Exp Neurol 2013; 248:286-98. [PMID: 23797154 DOI: 10.1016/j.expneurol.2013.06.012] [Citation(s) in RCA: 18] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 05/10/2013] [Accepted: 06/14/2013] [Indexed: 02/04/2023]
Abstract
In the slow channel congenital myasthenic syndrome mutations in genes encoding the muscle acetylcholine receptor give rise to prolonged ion channel activations. The resulting cation overload in the postsynaptic region leads to damage of synaptic structures, impaired neuromuscular transmission and fatigable muscle weakness. Previously we identified and characterised in detail the properties of the slow channel syndrome mutation εL221F. Here, using this mutation, we generate a transgenic mouse model for the slow channel syndrome that expresses mutant human ε-subunits harbouring an EGFP tag within the M3-M4 cytoplasmic region, driven by a ~1500 bp region of the CHRNB promoter. Fluorescent mutant acetylcholine receptors are assembled, cluster at the motor endplates and give rise to a disease model that mirrors the human condition. Mice demonstrate mild fatigable muscle weakness, prolonged endplate and miniature endplate potentials, and variable degeneration of the postsynaptic membrane. We use our model to investigate ephedrine as a potential treatment. Mice were assessed before and after six weeks on oral ephedrine (serum ephedrine concentration 89 ± 3 ng/ml) using an inverted screen test and in vivo electromyography. Treated mice demonstrated modest benefit for screen hang time, and in measures of compound muscle action potentials and mean jitter that did not reach statistical significance. Ephedrine and salbutamol show clear benefit when used in the treatment of DOK7 or COLQ congenital myasthenic syndromes. Our results highlight only a modest potential benefit of these β2-adrenergic receptor agonists for the treatment of the slow channel syndrome.
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Affiliation(s)
- R G Webster
- Neurosciences Group, Nuffield Dept. of Clinical Neurosciences, University of Oxford, Oxford, UK
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Liu WW, Wang D, Chen H, Liu K, Sun XJ, Tao HY. Current status of decompression illness in China: analysis of studies from 2001-2011. Undersea Hyperb Med 2013; 40:41-48. [PMID: 23397867] [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] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To analyze the studies on decompression illness (DCI) in China in the past 10 years. METHODS We searched three Chinese databases and collected studies on DCI for further analysis. On the basis of findings, we proposed the issues on DCI in China. RESULTS There are more than 50,000 active divers in China, the majority of whom are fishing divers. Among them, the incidence of DCI is still at a high level because they have little or no knowledge of diving and diving medicine, the quality of diving equipment is poor, and divers generally do not follow the regulations of diving. There are few dive physicians in China, and the general clinicians have poor knowledge about, or pay little attention to, dive medicine. This might be the major cause of the poor quality of studies on DCI. There is no consensus in the classification of DCI and treatment tables for DCI treatment. These are factors affecting systemic review and further meta-analysis of available studies on DCI. CONCLUSION It is imperative to generalize knowledge in not only divers and diving-related practitioners but general practitioners as well.
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Affiliation(s)
- W W Liu
- Department of Diving Medicine, the Second Military Medical University, Shanghai, 200433, P.R. China
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Liu WW, Liu K, Tao HY, Sun XJ. Detection of exhaled nitric oxide in hyperoxia exposure. Undersea Hyperb Med 2013; 40:109-111. [PMID: 23397873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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Liu WW, Liu K, Mao D, Xu WG, Tao HY. Claustrophobia during routine hyperbaric oxygen treatment. Undersea Hyperb Med 2012; 39:619-620. [PMID: 22400453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Chen CH, Manaenko A, Zhan Y, Liu WW, Ostrowki RP, Tang J, Zhang JH. Hydrogen gas reduced acute hyperglycemia-enhanced hemorrhagic transformation in a focal ischemia rat model. Neuroscience 2010; 169:402-14. [PMID: 20423721 DOI: 10.1016/j.neuroscience.2010.04.043] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 04/15/2010] [Accepted: 04/19/2010] [Indexed: 01/04/2023]
Abstract
Hyperglycemia is one of the major factors for hemorrhagic transformation after ischemic stroke. In this study, we tested the effect of hydrogen gas on hemorrhagic transformation in a rat focal cerebral ischemia model. Sprague-Dawley rats (n=72) were divided into the following groups: sham; sham treated with hydrogen gas (H(2)); Middle Cerebral Artery Occlusion (MCAO); and MCAO treated with H(2) (MCAO+H(2)). All rats received an injection of 50% dextrose (6 ml/kg i.p.) and underwent MCAO 15 min later. Following a 90 min ischemic period, hydrogen was inhaled for 2 h during reperfusion. We measured the level of blood glucose at 0 h, 0.5 h, 4 h, and 6 h after dextrose injection. Infarct and hemorrhagic volumes, neurologic score, oxidative stress (evaluated by measuring the level of 8 Hydroxyguanosine (8OHG), 4-Hydroxy-2-Nonenal (HNE) and nitrotyrosine), and matrix metalloproteinase (MMP)-2/MMP-9 activity were measured at 24 h after ischemia. We found that hydrogen inhalation for 2 h reduced infarct and hemorrhagic volumes and improved neurological functions. This effect of hydrogen was accompanied by a reduction of the expression of 8OHG, HNE, and nitrotyrosine and the activity of MMP-9. Furthermore, a reduction of the blood glucose level from 500+/-32.51 to 366+/-68.22 mg/dl at 4 h after dextrose injection was observed in hydrogen treated animals. However, the treatment had no significant effect on the expression of ZO-1, occludin, collagen IV or aquaporin4 (AQP4). In conclusion, hydrogen gas reduced brain infarction, hemorrhagic transformation, and improved neurological function in rats. The potential mechanisms of decreased oxidative stress and glucose levels after hydrogen treatment warrant further investigation.
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Affiliation(s)
- C H Chen
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, USA
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Abstract
OBJECTIVES The purpose of this study was to investigate the clinical manifestations, Epstein-Barr virus (EBV) serology, and treatment outcome of patients with nasopharyngeal adenocarcinoma (NPAC). DESIGN A retrospective study of clinical data from consecutive patients with NPAC identified between 1964 and 2000. SETTING A tertiary cancer center in China. PARTICIPANTS Forty-eight patients diagnosed with NPAC. MAIN OUTCOME MEASURES Crosstabs and chi-square test were conducted to study the association of positive VCA-IgA levels among different pathological types of NPAC, and also to compare the proportions of local control rates in patients treated with different modalities. The survival rate was calculated using the Kaplan-Meier method, and the Log Rank test was used to compare the survival rates considering different factors. To balance the distribution bias, a multivariate COX model survival analysis was also performed. RESULTS Of the 48 NPAC patients identified, 45% presented with cervical metastasis. Pathologically, 58% of NPAC cases were common type and 42% were salivary gland type. The positive rate for the EBV antibody VCA-IgA in all patients was 53% and only 24% in the salivary gland type of NPAC. The overall local control rate and the 5-year disease-free survival rates were 87% and 65% respectively. Patients treated with surgery plus radiotherapy (RT) had a significantly higher 5-year disease-free survival rate than patients receiving RT alone (89%versus 75% respectively) (P = 0.039). Multivariate analysis confirmed that treatment modality was the significant factor influencing patient survival (P = 0.027) and the pathological type was not a factor predicting survival. CONCLUSIONS Nasopharyngeal adenocarcinoma is a distinct entity in all types of nasopharyngeal carcinoma and EBV serology has limited value in its diagnosis. The combination of surgery and RT should be considered for treatment of early lesions of NPAC.
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Affiliation(s)
- Z M Guo
- Department of Head and Neck Surgery, Cancer Center of Sun Yat-Sen University, Guangzhou, China
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Li B, Li YQ, Yang LJ, Chen SH, Yu W, Chen JY, Liu WW. Decreased T-cell receptor excision DNA circles in peripheral blood mononuclear cells among benzene-exposed workers. Int J Immunogenet 2009; 36:107-11. [PMID: 19228219 DOI: 10.1111/j.1744-313x.2009.00832.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Benzene is a volatile aromatic hydrocarbon solvent which is widely used in many industries. The chronic exposure of humans to benzene in the workplace has been associated with blood disorders, as well as toxicity in lymphopoiesis, including aplastic anaemia and leukaemia. However, the mechanisms of benzene-induced haematotoxicity and leukaemogenesis remain unclear. In this study, we investigated the level of T-cell receptor excision DNA circles (TRECs) in peripheral blood mononuclear cells (PBMCs) in benzene-exposed workers. This would therefore be considered as a potential marker for estimates of thymic output and an evaluation of the content of naïve T-cells. It is hoped that the data will bring a comprehensive understanding on the influence of benzene exposure in the host T-cell immune function. Quantitative detection of TRECs in DNA of PBMCs from benzene-exposed workers was preformed by real-time polymerase chain reaction using the TaqMan technique. The benzene-exposed workers were divided into four groups, and 27 normal individuals were served as controls. The result indicated that the TRECs levels of all benzene-exposed groups were significantly decreased as compared with those of controls. In conclusion, the recent thymic output function and the T-cell immune function were apparently impaired in workers after benzene exposure.
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Affiliation(s)
- B Li
- Institute of Hematology, Medical College, Jinan University, Guangzhou, China
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Liu WW, Todd S, Craig D, Passmore AP, Coulson DTR, Murphy S, Irvine GB, Johnston JA. Elevated platelet beta-secretase activity in mild cognitive impairment. Dement Geriatr Cogn Disord 2008; 24:464-8. [PMID: 17986817 DOI: 10.1159/000110739] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [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] [Accepted: 09/05/2007] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS We have recently reported that platelet activity of the rate-limiting enzyme for beta-amyloid peptide production is elevated in established Alzheimer's disease. Laboratory investigation of the very early stages of dementia provides an opportunity to investigate pathological mechanisms before advanced disease hinders interpretation. Mild cognitive impairment (MCI) exists prior to obvious dementia, and is associated with increased risk of conversion to overt disease. METHODS We developed and used a fluorimetric assay to quantify platelet membrane beta-secretase activity in 52 patients with MCI and 75 controls. RESULTS Platelet membrane beta-secretase activity was 24% higher in individuals with MCI compared to controls (p = 0.001, unpaired t test with Welch correction). CONCLUSION Elevated platelet beta-secretase activity in subjects with MCI is an area for further study in relation to the etiology and diagnosis of MCI.
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Affiliation(s)
- W W Liu
- Division of Psychiatry and Neuroscience, School of Medicine and Dentistry, Queen's University Belfast, Belfast, UK
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Fung BKK, Chan KY, Lam LY, Cheung SY, Choy NK, Chu KW, Chung LY, Liu WW, Tai KC, Yung SY, Yip SL. Study of wrist posture, loading and repetitive motion as risk factors for developing carpal tunnel syndrome. ACTA ACUST UNITED AC 2007; 12:13-8. [PMID: 17613179 DOI: 10.1142/s0218810407003341] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2005] [Accepted: 03/19/2007] [Indexed: 11/18/2022]
Abstract
Occupational risk factors of carpal tunnel syndrome (CTS) are popular current research targets, with main emphasis put on wrist posture and dynamics. In this study, we do not intend to pinpoint individual occupations, but aim to identify high risk wrist postures and actions which may occur across various occupations. It is hoped that prevention can thus be instituted in a general population by directing at the particular causative wrist actions rather than exclusively targeting isolated occupations. We performed a case-control study with 166 cases and 111 controls recruited from different hospitals in Hong Kong in 2004. All cases and controls completed the survey on their general health condition, smoking status, wrist posture and motion as well as psychosocial status at the time of diagnosis of CTS. Frequent flexion OR = 4.436 (95% CI: 1.833-10.734), frequent extension OR = 2.691 (95% CI: 1.106-6.547) of the wrist were found to be associated with CTS. Frequent sustained forceful motion of the wrist OR = 2.588 (95% CI: 1.144-5.851) was also found to be associated with CTS. Neutral wrist position and repetitive wrist motion were not associated with CTS. Adjustment was made for age, sex, BMI, smoking and psychosocial stress. Our study confirms that frequent flexion, extension and sustained force of the wrist increase the risk of developing CTS.
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Affiliation(s)
- B K K Fung
- Department of Orthopaedics and Traumatology, Queen Mary Hospital, Hong Kong SAR, Hong Kong.
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Johnston JA, Liu WW, Coulson DTR, Todd S, Murphy S, Brennan S, Foy CJ, Craig D, Irvine GB, Passmore AP. Platelet beta-secretase activity is increased in Alzheimer's disease. Neurobiol Aging 2006; 29:661-8. [PMID: 17174011 DOI: 10.1016/j.neurobiolaging.2006.11.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2006] [Revised: 10/31/2006] [Accepted: 11/09/2006] [Indexed: 01/02/2023]
Abstract
beta-Secretase activity is the rate-limiting step in Abeta peptide production from amyloid precursor protein. Abeta is a major component of Alzheimer's disease (AD) cortical amyloid plaques. beta-Secretase activity is elevated in post mortem brain tissue in AD. The current study investigated whether beta-secretase activity was also elevated in peripheral blood platelets. We developed a novel fluorimetric beta-secretase activity assay to investigate platelets isolated from individuals with AD (n=86), and age-matched controls (n=115). Platelet membrane beta-secretase activity (expressed as initial rate) varied over fourfold between individuals, raising important questions about in vivo regulation of this proteolytic activity. Nonetheless, we identified a significant 17% increase in platelet membrane beta-secretase activity in individuals with AD compared to controls (p=0.0003, unpaired t-test). Platelet membrane beta-secretase activity did not correlate with mini-mental state examination (MMSE) score in the AD group (mean MMSE=17.7, range 1-23), indicating that the increase did not occur as a secondary result of the disease process, and may even have preceded symptom onset.
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Affiliation(s)
- J A Johnston
- Queen's University Belfast, School of Medicine and Dentistry, Whitla Medical Building, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, United Kingdom.
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