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Duan XL, Hu LB, Wang YL, Tong J, Ding P, Geng ML, Tao SM, Tao FB, Wu XY. [Relationship between sleep status and occasional hypertension in preschool children in three provinces in the middle and lower reaches of the Yangtze River in China]. Zhonghua Yu Fang Yi Xue Za Zhi 2024; 58:208-212. [PMID: 38387952 DOI: 10.3760/cma.j.cn112150-20230720-00016] [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: 02/24/2024]
Abstract
Objective: To understand the prevalence of occasional hypertension in preschool children in three provinces in the middle and lower reaches of the Yangtze River in China, and analyze the relationship between their sleep status and occasional hypertension. Methods: From October to November 2017, a total of 24 842 preschool children from 109 kindergartens in 11 cities in Hubei, Anhui and Jiangsu provinces were selected by intentional sampling method. A self-made questionnaire was used to collect basic information about the subjects, and the sleep status data was collected by the Children's Sleep Habits Questionnaire. Physical examinations were performed on the subjects, and height, weight and blood pressure were measured on-site. The difference in occasional hypertension detection rate among preschool children with different characteristics was compared, and the correlation between sleep status and occasional hypertension detection rate was analyzed by the multivariate logistic regression model. Results: The age of the subjects was (4.4±1.0) years, including 12 729 boys (51.2%). The prevalence of occasional hypertension was 31.8% (7 907/24 842). The prevalence of occasional hypertension among preschool children in three provinces of the middle and lower reaches of the Yangtze River was 31.8%. There were statistically significant differences in the detection rate of occasional hypertension among preschool children of different genders, age groups, family residence, family economic status and parents' education level (all P values<0.05). The detection rate of occasional hypertension in children with less than 10 hours of sleep was higher than those with sufficient sleep, and the difference was statistically significant (P<0.05). The results of multivariate logistic regression analysis showed that after adjusting for factors such as gender, age, family residence, family economic status, parental education level, parental smoking history, and physical constitution, the ORs (95%CI) for less than 10 hours of sleep, turning on the lights while sleeping, and poor sleep quality were 1.09 (1.03-1.15), 1.17 (1.07-1.28) and 1.04 (0.91-1.18), respectively, compared with the corresponding reference group. Conclusion: The detection rate of occasional hypertension is high in preschool children in the middle and lower reaches of the Yangtze River and there is a positive correlation between insufficient sleep and turning on the light when sleeping and occasional hypertension in preschool children.
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Affiliation(s)
- X L Duan
- School of Public Health, Anhui Medical University, Hefei 230032, China
| | - L B Hu
- School of Public Health, Anhui Medical University, Hefei 230032, China
| | - Y L Wang
- School of Public Health, Anhui Medical University, Hefei 230032, China
| | - J Tong
- School of Public Health, Anhui Medical University, Hefei 230032, China Anhui Medical University, Anhui Provincial Key Laboratory of Environment and Population Health across the Life Course, Hefei 230032, China
| | - P Ding
- School of Public Health, Anhui Medical University, Hefei 230032, China Anhui Medical University, Anhui Provincial Key Laboratory of Environment and Population Health across the Life Course, Hefei 230032, China
| | - M L Geng
- School of Public Health, Anhui Medical University, Hefei 230032, China Anhui Medical University, Anhui Provincial Key Laboratory of Environment and Population Health across the Life Course, Hefei 230032, China
| | - S M Tao
- Anhui Medical University, Anhui Provincial Key Laboratory of Environment and Population Health across the Life Course, Hefei 230032, China
| | - F B Tao
- School of Public Health, Anhui Medical University, Hefei 230032, China Anhui Medical University, Anhui Provincial Key Laboratory of Environment and Population Health across the Life Course, Hefei 230032, China
| | - X Y Wu
- School of Public Health, Anhui Medical University, Hefei 230032, China Anhui Medical University, Anhui Provincial Key Laboratory of Environment and Population Health across the Life Course, Hefei 230032, China
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Duan XL, Xiao N. [Visual dysfunction and ocular disorders in pediatric neurological developmental diseases]. Zhonghua Er Ke Za Zhi 2020; 58:871-874. [PMID: 33120456 DOI: 10.3760/cma.j.cn112140-20200720-00738] [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)
- X L Duan
- Department of Rehabilitation Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - N Xiao
- Department of Rehabilitation Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
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Liu Y, Yuan HL, Duan XL, Xu JL, Qu JH, Chen G, Shi J, Han CX, Ding LL, Jiang M. [Clinical research of HLA-haploidentical peripheral hematopoietic stem cell transplantation following reduced intensity conditioning regimen with hematological malignancy patients over 50 years old]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:667-672. [PMID: 31495134 PMCID: PMC7342871 DOI: 10.3760/cma.j.issn.0253-2727.2019.08.008] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
目的 分析减低剂量预处理单倍型外周血造血干细胞移植(RIC-haplo-PBSCT)治疗50岁以上恶性血液肿瘤患者的疗效。 方法 18例50岁以上恶性血液肿瘤患者纳入研究,男8例,女10例,中位年龄52(50~66)岁;急性髓系白血病(AML)8例,慢性髓性白血病(CML)2例,骨髓增生异常综合征(MDS)5例,急性淋巴细胞白血病(ALL)2例,急性NK细胞白血病(ANKL)1例;采用FAB+ATG(氟达拉滨+阿糖胞苷+白消安+兔抗人胸腺细胞免疫球蛋白)减低剂量预处理方案,输注供者高剂量非去T细胞外周血造血干细胞(PBSC),应用强化移植物抗宿主病(GVHD)预防方案及感染防控措施。 结果 16例患者在移植后15 d获得完全供者嵌合,其中1例在移植后1个月发生移植排斥,其余2例在移植后15 d为混合嵌合并于移植后1个月发生移植排斥。急性GVHD发生率为61.1%(95%CI 49.6%~72.6%),Ⅱ~Ⅳ度急性GVHD发生率为35.4%(95%CI 21.1%~49.7%),Ⅲ/Ⅳ度急性GVHD发生率为13.8%(95%CI 4.7%~22.9%)。2年慢性GVHD累积发生率为38.2%(95%CI 25.5%~50.9%),未发生广泛型慢性GVHD。中位随访14.5(3~44)个月,2年总生存率、无病生存率分别为72.6%(95%CI 60.1%~85.1%)、63.7%(95%CI 49.2%~78.2%),2年累积复发率为31.2%(95%CI 16.5%~45.9%),2年非复发死亡率为12.5%(95%CI 4.2%~20.8%)。 结论 RIC-haplo-PBSCT治疗50岁以上恶性血液肿瘤患者可获得较好的疗效。
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Affiliation(s)
- Y Liu
- Hematologic Disease Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China; Xinjiang Uygur Autonomous Region Research Institute of Hematology, Urumqi 830061, China
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Li JC, Zhang M, Li YC, Duan XL, Wang LM. [Prevalence and influencing factors of respiratory symptoms among people aged 40 years and above in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 39:786-791. [PMID: 29936748 DOI: 10.3760/cma.j.issn.0254-6450.2018.06.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the prevalence and influencing factors on respiratory disease related symptoms (coughing, expectoration, persistent coughing and persistent expectoration) in Chinese people ≥40 years old. Methods: Data was collected from 162 surveillance points in the China Non-communicable and Chronic Disease Surveillance Project in 2010. A total number of 56 066 people, aged ≥40 years, were selected by multi-stage cluster random sampling method in this study. The prevalence rates of coughing, expectoration, persistent coughing and persistent expectoration were calculated according to gender by χ(2) test. Multivariate logistic regression model was used to analyze the related influencing factors. Results: The prevalence rates of coughing, persistent coughing, expectoration and persistent expectoration in men were significantly higher than that in women (P<0.01). The prevalence rate of respiratory symptoms was positively correlated with age and duration and amount of cigarette smoking (P<0.01), while negatively correlated with participants'education level (P<0.01). Results from multivariate logistic regression analysis showed that gender, age, education level, smoking-related parameters, areas of residency (in urban or rural areas), etc. were appeared as influencing factors on the prevalence of respiratory symptoms. Conclusion: The symptoms of chronic respiratory diseases appeared prevalent in Chinese population aged ≥40 years. Factors as older age, living in the central/western regions and smoking-related parameters were identified as of higher risks.
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Affiliation(s)
- J C Li
- National Center for Chronic and Non-Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - M Zhang
- National Center for Chronic and Non-Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Y C Li
- Peking University Clinical Research Institute, Beijing 100191, China
| | - X L Duan
- University of Science and Technology Beijing, Beijing 100083, China
| | - L M Wang
- National Center for Chronic and Non-Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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Yan CH, Xu T, Zheng XY, Sun J, Duan XL, Gu JL, Zhao CL, Zhu J, Wu YH, Wu DP, Hu JD, Huang H, Jiang M, Li J, Hou M, Wang C, Shao ZH, Liu T, Hu Y, Huang XJ. [Epidemiology of febrile neutropenia in patients with hematological disease-a prospective multicentre survey in China]. Zhonghua Xue Ye Xue Za Zhi 2017; 37:177-82. [PMID: 27033752 PMCID: PMC7342950 DOI: 10.3760/cma.j.issn.0253-2727.2016.03.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
目的 了解中国血液病患者中性粒细胞缺乏(粒缺)伴发热的发生率、临床和微生物学特征及危险因素。 方法 前瞻性研究2014年10月20日至2015年3月20日来自全国11家血液病中心发生粒缺伴发热的连续血液病患者发热情况及危险性因素。 结果 1 139例患者共发生784例次粒缺伴发热,粒缺持续21 d时发热的累积发生率为81.9%。多因素分析显示中心静脉置管(P<0.001,HR= 3.407,95% CI 2.276~4.496)、胃肠道黏膜炎(P<0.001,HR=10.548, 95% CI 3.245~28.576)、既往90 d内暴露于广谱抗生素(P<0.001,HR=3.582,95% CI 2.387~5.770)和粒缺持续时间>7 d(P<0.001,HR= 4.194,95% CI 2.572~5.618)是粒缺伴发热的危险因素。无任何危险因素、具备1项、2项、3~4项危险因素患者发热的累计发生率依次增加(35.4%、69.2%、86.1%及95.6%,P<0.001)。784例次粒缺伴发热中,不明原因发热253例次(32.3%),临床证实的感染429例次(54.7%),微生物学证实的感染102例次(13.0%)。最常见的感染部位依次为肺(388例次,49.5%)、上呼吸道(159例次,16.0%)、肛周组织(77例次,9.8%)、血流(60例次,7.7%)。最常见的病原菌为革兰阴性菌(44.54%),其次为革兰阳性菌(37.99%)和真菌(17.47%)。发热与未发热患者相比,两组之间总体病死率差异无统计学意义(9.2%对4.8%,P=0.099)。多因素分析显示年龄>40岁(P=0.047,HR=5.000,95% CI 0.853~28.013)、血流动力学不稳(P=0.001,HR=13.185, 95% CI 2.983~54.915)、既往耐药菌的定植或感染(P=0.005,HR=28.734,95% CI 2.921~313.744)、血流感染(P=0.038,HR=9.715, 95% CI 1.110~81.969)和肺部感染(P=0.031,HR=25.905, 95% CI 1.381~507.006)是与总体死亡相关的危险因素。 结论 发热是血液病患者粒缺期常见的合并症,不同部位的感染有不同的致病菌谱。粒缺持续时间>7 d、中心静脉置管、胃肠道黏膜炎和既往90 d内暴露于广谱抗生素是粒缺伴发热发生的危险因素。
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Affiliation(s)
- C H Yan
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
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Ning SY, Chang NB, Han XY, Liu X, Duan YW, Liu YH, Liu T, Duan XL, Li NH, Guo J, Wang W, Fan Y, Li JT. [The prevalence and etiology of anemia in urban community dwelling elderly population in Beijing]. Zhonghua Nei Ke Za Zhi 2017; 55:289-92. [PMID: 27030617 DOI: 10.3760/cma.j.issn.0578-1426.2016.04.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To estimate the prevalence of anemia in urban community dwelling elderly population. METHODS This study was a cross-sectional survey of prevalence of anemia in randomly selected community dwelling residents aged over 65 years in Beijing. Anemia was defined as hemoglobin concentration less than 130 g/L in men and 120 g/L in women. RESULTS The hemoglobin concentration was (135.65±14.48) g/L in total of 1 947 eligible participants and was much higher in men than in women [(142.56±15.56) g/L vs (130.95±11.53) g/L, P<0.001]. There were 288 (14.8%) patients with anemia, including 16.3%(129/789) in men and 13.7%(159/1 158) in women. The prevalence of anemia increased significantly with age, which was 7.6% in 65-69 years, 10.8% in 70-74 years, 18.8% in 75-79 years and 24.1% over 80 years (P<0.001). Two hundred and seventy-nine (96.9%) subjects were mild anemia, 8 (2.8%) moderate, only 1 subject (0.3%) severe. Unexplained anemia was predominant, which accounted for 63.2%. Only 16.7% people were diagnosed as nutritional anemia, renal anemia 5.2%, anemia of chronic disease (ACD) 12.2%. There were 2.4% people with overlapped renal anemia and ACD. Compared with non-anemic subjects, more subjects with unexplained anemia represented macrocytosis (7.1% vs 3.2%, P=0.007). CONCLUSIONS Anemia is a common health problem in urban community dwelling elderly population. Most subjects have anemia with unknown origin. Further investigation is needed to explore the mechanism and related factors of elderly anemia.
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Affiliation(s)
| | - N B Chang
- Department of Hematology, Beijing Hospital, Beijing 100730, China
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Wang XY, Jiang M, Qu JH, Duan XL, Yuan HL, Wang L, Xu JL, Ding LL, Nadia Abdul C, Li L, Eed A, Guo XH, Wen BZ. [Comparisons of occurrence and curative effect of interstitial pneumonia after the related HLA-haploidentical and HLA-matched sibling peripheral blood hematopoietic stem cell transplantation]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:458-63. [PMID: 27431067 PMCID: PMC7348327 DOI: 10.3760/cma.j.issn.0253-2727.2016.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To compare occurrence and curative effect of interstitial pneumonia (IP) of patients with malignant hematologic disease after related HLA-haploidentical peripheral blood stem cell transplantation without T-cell depletion (RHNT-PBSCT) and non T cell-depleted HLA-matched sibling peripheral blood stem cell transplantation (MSNT-PBSCT). METHODS 109 patients with malignant hematologic disease as the research cases received RHNT-PBSCT from January 2006 to December 2014, which were compared with 125 patients treated with MSNT-PBSCT during the same period to determine the occurrence of IP and curative effect produced by ganciclovir and joint adrenal glucocorticoids. RESULTS The incidences of IP in RHNT-PBSCT and MSNT-PBSCT groups were 15.60%(17/109) and 13.60%(17/125) (P=0.150), respectively; both the effective rates were 76.47%(13/17) (P=0.536), the difference was not statistically significant. Single factor analysis showed that acute graft versus host disease was a risk factor for the occurrence of IP after RHNT-PBSCT (P=0.001). CONCLUSION The incidence of IP in patients with malignant hematologic disease after RHNT-PBSCT didn' t increase when compared with patients after MSNT-PBSCT. The curative effects of the two groups were equivalent after priority to ganciclovir and joint adrenal glucocorticoids.
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Affiliation(s)
- X Y Wang
- Hematologic Disease Center, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Research Institute of Hematology, Urumqi 830054, China
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Wang YL, Xia ZH, Liu D, Qiu WX, Duan XL, Wang R, Liu WJ, Zhang YH, Wang D, Tao S, Liu WX. Multimedia fate and source apportionment of polycyclic aromatic hydrocarbons in a coking industry city in Northern China. Environ Pollut 2013; 181:115-121. [PMID: 23845769 DOI: 10.1016/j.envpol.2013.06.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 06/08/2013] [Accepted: 06/11/2013] [Indexed: 06/02/2023]
Abstract
A steady state Level III fate model was established and applied to quantify source-receptor relationship in a coking industry city in Northern China. The local emission inventory of PAHs, as the model input, was acquired based on energy consumption and emission factors. The model estimations were validated by measured data and indicated remarkable variations in the paired isomeric ratios. When a rectification factor, based on the receptor-to-source ratio, was calculated by the fate model, the quantitatively verified molecular diagnostic ratios provided reasonable results of local PAH emission sources. Due to the local ban and measures on small scale coking activities implemented from the beginning of 2004, the model calculations indicated that the local emission amount of PAHs in 2009 decreased considerably compared to that in 2003.
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Affiliation(s)
- Y L Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
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Yu FP, Yuan DR, Zhao X, Duan XL, Guo SY, Cheng XF, Wang XQ. Czochralski growth and characterization of Dy: La3Ga5.5Nb0.5O14single crystals. Cryst Res Technol 2009. [DOI: 10.1002/crat.200800388] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Yu FP, Yuan DR, Guo SY, Duan XL, Wang XQ, Kong LM, Zhang XQ, Zhao X. Effects of Er3+ doping concentration and calcination on fluorescence properties of La3Ga5.5Nb0.5O14 nanocrystals. Cryst Res Technol 2008. [DOI: 10.1002/crat.200711095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Yu FP, Yuan DR, Kong LM, Duan XL, Guo SY, Wang XQ, Zhao X. Fluorescence properties of Dy(3+) doped La(3)Ga(5.5)Nb(0.5)O(14) nanocrystals. Nanotechnology 2008; 19:045705. [PMID: 21817522 DOI: 10.1088/0957-4484/19/04/045705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The effects of Dy(3+) doping concentration and calcinations on the fluorescence properties of La(3)Ga(5.5)Nb(0.5)O(14) (Dy:LGN) nanocrystals were examined for the first time. High quality Dy:LGN nanocrystals were synthesized by the sol-gel method. The room temperature fluorescence spectra were measured; they showed a yellow emission, which can be attributed to the (4)F(9/2)-(6)H(13/2) transition. The relationship between the relative emission intensity and the doping concentration of the specimens, sintered at different temperatures, is consistent with a Gaussian distribution according a fitted and modified formula. The optimum value of the Dy(3+) doping concentration in LGN nanocrystals is in the range 2.0-2.5%. Moreover, in LGN bulk crystal for laser use, the optimum value, calculated through the obtained formula, is presumed in the range 1.5-2.0%. The fluorescent lifetime of a 2.0% Dy:LGN nanocrystal is quite short, only about 8.5 ns.
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Affiliation(s)
- F P Yu
- State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China
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Wang LH, Yuan DR, Duan XL, Wang XQ, Yu FP. Synthesis and characterization of fine lithium niobate powders by sol- gel method. Cryst Res Technol 2007. [DOI: 10.1002/crat.200610822] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Pan DY, Yuan DR, Sun HQ, Guo SY, Wang XQ, Duan XL, Luan CN, Li ZF. Solubility and crystallization of BaHPO4 crystals. Cryst Res Technol 2006. [DOI: 10.1002/crat.200510566] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Huang WJ, Wang BR, Yao LB, Huang CS, Wang X, Zhang P, Jiao XY, Duan XL, Chen BF, Ju G. Activity of p44/42 MAP kinase in the caudal subnucleus of trigeminal spinal nucleus is increased following perioral noxious stimulation in the mouse. Brain Res 2000; 861:181-5. [PMID: 10751581 DOI: 10.1016/s0006-8993(00)02015-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The extracellular signal-regulated protein kinase-1 and -2 (ERK1 and ERK2), also referred to as the p44/42 mitogen-activated protein kinase (p44/42 MAP kinase), plays an essential role in neuronal signal transduction, but its function involved in nociceptive response has not been deeply studied yet. Here we report immunohistochemical evidence that p44/42 MAPK might be critical in nociceptive response. We found that after formalin was injected into the perioral skin of the upper lip of mice, the number of activated p44/42 MAPK-like immunoreactive neurons was significantly increased in the laminae I and II of the caudal subnucleus of the trigeminal spinal nucleus (Sp5C). The positive neurons and fibers were mostly concentrated in the middle portion of Sp5C dorsoventrally, where the afferent fibers innervating the skin of the upper lip are terminated. The reactive products were localized in perikarya, dendrites, nuclei, and diffusely in the neuropil. The present result suggests that p44/42 MAPK may be important in the transmission and modulation of noxious information in Sp5C.
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Affiliation(s)
- W J Huang
- Institute of Neurosciences, Fourth Military Medical University, 17 Chang Le Xi Road, Xi'an, China
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