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Xu HX, Yang CL, Wang W, Cao Z, Hu ZF, Zhang XM, Xiao YS. [Robotic-assisted laparoscopic modified ventral onlay lingual mucosal graft in complex ureteral stricture construction: experience of eight cases]. Zhonghua Wai Ke Za Zhi 2023; 61:1014-1019. [PMID: 37767669 DOI: 10.3760/cma.j.cn112139-20230113-00022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Objective: To examine the efficacy of robot-assisted laparoscopic modified ventral onlay lingual mucosal graft for complex ureteral stricture. Methods: The clinical data of 8 patients with ureteral stricture admitted to the Department of Urology, General Hospital of Southern Theater Command from May to October 2022 were retrospectively analyzed. There were 6 males and 2 females, aged (45.1±10.2) years (range: 34 to 64 years), body mass index (24.6±2.0) kg/m2 (range: 20.7 to 26.6 kg/m2). Five cases on the left side, 3 cases on the right side, the length of the ureteral structure was (3.1±0.7) cm (range: 2.2 to 4.5 cm). The value of preoperative serum creatinine was (113.8±22.3) μmol/L (range: 96 to 15 μmol/L). Before excising the structure segment, the titched anastomosed part of the dorsal wall of the ureter, and then the posteriorly augmented anastomotic, the remaining ventral side was augmented with a onlay lingual mucosa graft, then the omentum flap was used to wrap the reconstructed ureteral segment. The lingual mucosa graft with a length of 2.5 to 5.0 cm and a width of 1.0 to 1.5 cm was cut according to the actual structure. The surgery information of the patient, complications, and recent follow-up were recorded. Results: The operation under robot-assisted laparoscopy was performed successfully in the 8 patients without conversion to open surgery. The duration of the operation was (226.9±22.8) minutes (range: 210 to 255 minutes), estimated blood loss was (93.8±25.9) ml (range: 75 to 150 ml), the retention time of the postoperative drainage tube was (4.8±1.3) days (range: 3 to 7 days), and the duration of postoperative hospitalization was (11.1±3.6) days (range: 9 to 14 days). One week after the operation, the patient could pronounce correctly, enunciate clearly, and eat normally. Double J tubes were removed 4 to 8 weeks after the operation. The follow-up time in this group was 3 to 9 months, the follow-up patients underwent imaging and other examinations, which showed a significant improvement in hydronephrosis on the affected side, and the value of renal pelvic separation on the affected side was (1.4±0.8) cm (range: 0 to 2.3 cm). The serum creatinine value was (100.1±24.9) μmol/L (range: 76 to 155 μmol/L). Three months after the operation, the ureteroscopy showed that the ureter was smooth and the mucosa was normal. Conclusions: Robot-assisted laparoscopic ureteroplasty with a lingual mucosal graft is a safe and feasible operation for complex ureteral stricture without serious complications, which provides a surgical option for repairing ureteral stricture.
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Affiliation(s)
- H X Xu
- The First School of Clinical Medicine, Southern Medical University, Department of Urology, General Hospital of Southern Theater Command, Guangzhou 510010, China
| | - C L Yang
- The First School of Clinical Medicine, Southern Medical University, Department of Urology, General Hospital of Southern Theater Command, Guangzhou 510010, China
| | - W Wang
- The First School of Clinical Medicine, Southern Medical University, Department of Urology, General Hospital of Southern Theater Command, Guangzhou 510010, China
| | - Z Cao
- The First School of Clinical Medicine, Southern Medical University, Department of Urology, General Hospital of Southern Theater Command, Guangzhou 510010, China
| | - Z F Hu
- The First School of Clinical Medicine, Southern Medical University, Department of Urology, General Hospital of Southern Theater Command, Guangzhou 510010, China
| | - X M Zhang
- The First School of Clinical Medicine, Southern Medical University, Department of Urology, General Hospital of Southern Theater Command, Guangzhou 510010, China
| | - Y S Xiao
- The First School of Clinical Medicine, Southern Medical University, Department of Urology, General Hospital of Southern Theater Command, Guangzhou 510010, China
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Zhang JR, Chen QF, Tang HL, Xu HX, Chen FF. [Characteristics of mortality density of HIV/AIDS cases after diagnosis in Jiamusi of Heilongjiang province, 2010-2020]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1920-1924. [PMID: 36572464 DOI: 10.3760/cma.j.cn112338-20220823-00727] [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: 12/29/2022]
Abstract
Objective: To analyze characteristics of mortality density and the influencing factors of HIV/AIDS after diagnosis in Jiamusi of Heilongjiang province. Methods: The data were retrieved from HIV/AIDS Comprehensive Response Information System and selected cases diagnosed with HIV/AIDS in Jiamusi of Heilongjiang province during 2010-2020 and aged 15 years or older as the study objects. The method of retrospective cohort study was used to collect baseline and follow-up information, and characteristics of mortality density after HIV diagnosis were described. Death after HIV diagnosis was divided into 1-6 months, 7-12 months, and ≥13 months after HIV diagnosis. The Cox proportional hazards model was used to analyze the associated factors of mortality density within six months after HIV diagnosis. Excel 2019 and SPSS 22.0 software were used for data processing and statistical analysis. Results: A total of 953 HIV/AIDS with 173 deaths were included during the study period. Most HIV/AIDS were men (89.19%, 850/953), single or divorced or widowed (76.50%, 729/953), educated in middle school and lower level (51.84%, 494/953), and men who have sex with men (77.02%, 734/953). There was a cumulative follow-up of 3 944.59 person-years, with an overall mortality density of 4.39 (95%CI: 3.79-5.07)/100 person- years. The mortality density was highest in 21.60 (95%CI: 18.04-25.86) 100 person-years within the first six months after diagnosis, then decreased to 2.02 (95%CI: 1.59-2.58)/100 person-years over 13 months or more after HIV diagnosis. HIV/AIDS who died within the first six months after diagnosis had a higher proportion of first CD4+T lymphocytes (CD4) counts untested (51.61%, 48/93) and AIDS-related deaths (32.26%, 30/93). In the multivariate analysis of the Cox proportional hazards regression model, mortality density within the first six months after HIV diagnosis was greater among HIV/AIDS who were older at diagnosis, detected by medical institutions, with lower first CD4 counts or no testing, and never receiving antiretroviral therapy (ART). Conclusions: Mortality density was generally low in Jiamusi of Heilongjiang province during 2010-2020 and declined over the follow-up time. However, early diagnosis and immediate ART initiation should be strengthened. Attention should also be paid to follow-up care management and referral services for HIV/AIDS within the first six months after HIV diagnosis to reduce the risk of death after HIV diagnosis.
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Affiliation(s)
- J R Zhang
- Chinese Field Epidemiology Training Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China Department of AIDS Prevention and Control, Jiamusi Center for Disease Control and Prevention, Jiamusi 154007, China
| | - Q F Chen
- General Office, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H L Tang
- Division of Epidemiology, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H X Xu
- Department of AIDS Prevention and Control, Jiamusi Center for Disease Control and Prevention, Jiamusi 154007, China
| | - F F Chen
- Division of Epidemiology, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Shan DD, Wu NH, Wang Q, Ren WW, Zhu AQ, Wang LF, Liu YQ, Sun LP, Guo LH, Xu HX. Value of pseudopod sign on high-frequency ultrasound in predicting the pathological invasion of extramammary Paget's disease lesions. J Eur Acad Dermatol Venereol 2022; 36:1235-1245. [PMID: 35344636 DOI: 10.1111/jdv.18104] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 03/04/2022] [Indexed: 12/07/2022]
Abstract
BACKGROUND Vertical invasion of extramammary Paget's disease (EMPD) is associated with poor prognosis. The usual vertical invasion route is directly downward or along the skin appendages. High-frequency ultrasound (HFUS) can be used to measure the EMPD lesion thickness, and visualize the pseudopod extensions due to skin appendage involvement. It is a non-invasive method for evaluating the extent of vertical invasion in EMPD. OBJECTIVE To investigate the value of HFUS in predicting the extent of vertical invasion in EMPD. METHODS In this retrospective study, 85 patients with EMPD were divided into two groups based on the pathology: invasive EMPD (iEMPD) group (n = 13) and in situ EMPD group (n = 72). The clinical and HFUS features of both the groups were analyzed. The different types of pseudopodia morphology on HFUS were as follows: no pseudopodia, irregular bottom, small sphere, short strip, long strip, vase shape, and nodular convex. These were further stratified into low-risk and high-risk levels. RESULTS The clinical features were comparable between the two groups (P > .05). There were significant differences between the two groups in the HFUS features (lesion thickness, lesion shape, bottom shape, layer involvement, pseudopodia morphology, and color Doppler blood flow signal; all P < .05). The distribution of the pseudopodia morphology types in the in situ EMPD and iEMPD groups, was as follows: no pseudopodia, 30/72 and 0/13; irregular bottom, 5/72 and 0/13; small sphere, 5/72 and 0/13; short strip, 21/72 and 0/13; long strip, 8/72 and 3/13; vase shape, 3/72 and 3/13; and nodular convex, 0/72 and 7/13 (P < .05 for all). The sensitivity and specificity of high-risk pseudopodia in identifying iEMPD were 100% and 84.7%, respectively. CONCLUSIONS HFUS provides morphological information regarding EMPD lesions. Risk stratification for pseudopodia can help to distinguish between iEMPD and in situ EMPD lesions.
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Affiliation(s)
- D D Shan
- Department of Medical Ultrasound, Shanghai Skin Disease Hospital, Ultrasound Research and Education Institute, School of Medicine, Tongji University, Shanghai, China.,Center of Minimally Invasive Treatment for Tumor, Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, National Clinical Research Center for Interventional Medicine, Shanghai, China.,Ultrasound Research and Education Institute, Clinical Research Center for Interventional Medicine, School of Medicine, Tongji University, Shanghai, China
| | - N H Wu
- Department of Pathology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Q Wang
- Department of Medical Ultrasound, Shanghai Skin Disease Hospital, Ultrasound Research and Education Institute, School of Medicine, Tongji University, Shanghai, China.,Center of Minimally Invasive Treatment for Tumor, Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, National Clinical Research Center for Interventional Medicine, Shanghai, China.,Ultrasound Research and Education Institute, Clinical Research Center for Interventional Medicine, School of Medicine, Tongji University, Shanghai, China
| | - W W Ren
- Department of Medical Ultrasound, Shanghai Skin Disease Hospital, Ultrasound Research and Education Institute, School of Medicine, Tongji University, Shanghai, China.,Center of Minimally Invasive Treatment for Tumor, Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, National Clinical Research Center for Interventional Medicine, Shanghai, China.,Ultrasound Research and Education Institute, Clinical Research Center for Interventional Medicine, School of Medicine, Tongji University, Shanghai, China
| | - A Q Zhu
- Department of Medical Ultrasound, Shanghai Skin Disease Hospital, Ultrasound Research and Education Institute, School of Medicine, Tongji University, Shanghai, China.,Center of Minimally Invasive Treatment for Tumor, Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, National Clinical Research Center for Interventional Medicine, Shanghai, China.,Ultrasound Research and Education Institute, Clinical Research Center for Interventional Medicine, School of Medicine, Tongji University, Shanghai, China
| | - L F Wang
- Department of Medical Ultrasound, Shanghai Skin Disease Hospital, Ultrasound Research and Education Institute, School of Medicine, Tongji University, Shanghai, China.,Center of Minimally Invasive Treatment for Tumor, Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, National Clinical Research Center for Interventional Medicine, Shanghai, China.,Ultrasound Research and Education Institute, Clinical Research Center for Interventional Medicine, School of Medicine, Tongji University, Shanghai, China
| | - Y Q Liu
- Department of Pathology, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai, China
| | - L P Sun
- Department of Medical Ultrasound, Shanghai Skin Disease Hospital, Ultrasound Research and Education Institute, School of Medicine, Tongji University, Shanghai, China.,Center of Minimally Invasive Treatment for Tumor, Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, National Clinical Research Center for Interventional Medicine, Shanghai, China.,Ultrasound Research and Education Institute, Clinical Research Center for Interventional Medicine, School of Medicine, Tongji University, Shanghai, China
| | - L H Guo
- Department of Medical Ultrasound, Shanghai Skin Disease Hospital, Ultrasound Research and Education Institute, School of Medicine, Tongji University, Shanghai, China.,Center of Minimally Invasive Treatment for Tumor, Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, National Clinical Research Center for Interventional Medicine, Shanghai, China.,Ultrasound Research and Education Institute, Clinical Research Center for Interventional Medicine, School of Medicine, Tongji University, Shanghai, China
| | - H X Xu
- Department of Medical Ultrasound, Shanghai Skin Disease Hospital, Ultrasound Research and Education Institute, School of Medicine, Tongji University, Shanghai, China.,Center of Minimally Invasive Treatment for Tumor, Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Shanghai, China.,Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, National Clinical Research Center for Interventional Medicine, Shanghai, China.,Ultrasound Research and Education Institute, Clinical Research Center for Interventional Medicine, School of Medicine, Tongji University, Shanghai, China
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Zhang ZH, Chen C, Jia SZ, Cao XC, Liu M, Tian J, Hoffmann PR, Xu HX, Ni JZ, Song GL. Selenium Restores Synaptic Deficits by Modulating NMDA Receptors and Selenoprotein K in an Alzheimer's Disease Model. Antioxid Redox Signal 2021; 35:863-884. [PMID: 32475153 DOI: 10.1089/ars.2019.7990] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Aims: Strong evidence has implicated synaptic failure as a direct contributor to cognitive decline in Alzheimer's disease (AD), and selenium (Se) supplementation has demonstrated potential for AD treatment. However, the exact roles of Se and related selenoproteins in mitigating synaptic deficits remain unclear. Results: Our data show that selenomethionine (Se-Met), as the major organic form of Se in vivo, structurally restored synapses, dendrites, and spines, leading to improved synaptic plasticity and cognitive function in triple transgenic AD (3 × Tg-AD) mice. Furthermore, we found that Se-Met ameliorated synaptic deficits by inhibiting extrasynaptic N-methyl-d-aspartate acid receptors (NMDARs) and stimulating synaptic NMDARs, thereby modulating calcium ion (Ca2+) influx. We observed that a decrease in selenoprotein K (SELENOK) levels was closely related to AD, and a similar disequilibrium was found between synaptic and extrasynaptic NMDARs in SELENOK knockout mice and AD mice. Se-Met treatment upregulated SELENOK levels and restored the balance between synaptic and extrasynaptic NMDAR expression in AD mice. Innovation: These findings establish a key signaling pathway linking SELENOK and NMDARs with synaptic plasticity regulated by Se-Met, and thereby provide insight into mechanisms by which Se compounds mediate synaptic deficits in AD. Conclusion: Our study demonstrates that Se-Met restores synaptic deficits through modulating Ca2+ influx mediated by synaptic and extrasynaptic NMDARs in 3 × Tg-AD mice, and suggests a potentially functional interaction between SELENOK and NMDARs. Antioxid. Redox Signal. 35, 863-884.
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Affiliation(s)
- Zhong-Hao Zhang
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China.,Shenzhen Bay Laboratory, Shenzhen, China.,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, China
| | - Chen Chen
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Shi-Zheng Jia
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Xian-Chun Cao
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Min Liu
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Jing Tian
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Peter R Hoffmann
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, USA
| | - Hua-Xi Xu
- Neuroscience Initiative, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, California, USA
| | - Jia-Zuan Ni
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Guo-Li Song
- Shenzhen Key Laboratory of Marine Bioresources and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China.,Shenzhen Bay Laboratory, Shenzhen, China.,Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Shenzhen, China
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Shen R, Yin XL, Li JP, Peng JJ, Yi T, Jia HK, Xu HX, Zeng HQ, Zhou Y. [Myeloid sarcoma of the small intestine with CBFβ-MYH11 as the primary manifestation of acute myeloid leukemia with inv(16)and+22: a case report]. Zhonghua Xue Ye Xue Za Zhi 2021; 41:873. [PMID: 33190452 PMCID: PMC7656070 DOI: 10.3760/cma.j.issn.0253-2727.2020.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- R Shen
- Department of Hematology, Changsha Central Hospital, Nanhua University, Changsha 410004, China
| | - X L Yin
- Department of hematology, 923 hospital of the PLA joint logistic support force, Nanning 530021, China
| | - J P Li
- Department of Hematology, Changsha Central Hospital, Nanhua University, Changsha 410004, China
| | - J J Peng
- Department of Hematology, Changsha Central Hospital, Nanhua University, Changsha 410004, China
| | - T Yi
- Department of Hematology, Changsha Central Hospital, Nanhua University, Changsha 410004, China
| | - H K Jia
- Department of Hematology, Changsha Central Hospital, Nanhua University, Changsha 410004, China
| | - H X Xu
- Department of Hematology, Changsha Central Hospital, Nanhua University, Changsha 410004, China
| | - H Q Zeng
- Department of Hematology, Changsha Central Hospital, Nanhua University, Changsha 410004, China
| | - Y Zhou
- Department of Hematology, Changsha Central Hospital, Nanhua University, Changsha 410004, China
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Xu HX, Shao XS, Li YH, Ying B, Qiu J, Zheng SS, Tang Y, Feng J, Lyu XY, Wu L, Li HJ, Tang Y. [Predictive factors of poor prognosis in children with acute kidney injury treated with renal replacement therapy]. Zhonghua Er Ke Za Zhi 2020; 58:725-730. [PMID: 32872712 DOI: 10.3760/cma.j.cn112140-20200211-00077] [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 investigate the predictive factors of poor prognosis in children with acute kidney injury (AKI) treated with renal replacement therapy (RRT). Methods: In this retrospective case-control study, the clinical data were collected from 134 pediatric patients (82 male, 52 female) with AKI treated with RRT in six tertiary hospitals from May 2015 to June 2018. According to the serum creatinine level at discharge, the patients were divided into the favorable outcome group and unfavorable outcome group. The data of sex, age, primary diseases, AKI stage, time from diagnosis of AKI to start of RRT (h) and whether to start RRT within 24 hours, urine volume and complications between the two groups were compared. Continuous variables were compared by t test and Mann-Whitney U test, and percentage or proportions were compared by Chi square test. The predictive factors of adverse prognosis were analyzed by using univariate and unconditional binary logistic regression analysis. Results: The average age of the 134 AKI patients was (6±4) years. There were 114 patients (85.0%) in the favorable outcome group and 20 patients (15.0%) in the unfavorable outcome group. No statistically significant differences were found between the two groups in terms of sex (χ(2)=2.596, P=0.107), age (t=0.718, P=0.474), primary disease (χ(2)=2.076, P=0.722), AKI stage (χ(2)=0.004, P=0.998), time from diagnosis of AKI to start RRT (h) (P=0.745), whether to start RRT within 24 hours (χ(2)=0.016, P=0.899), urine volume (χ(2)=3.118, P=0.374), fluid overload (χ(2)=0.014, P=0.905), multiple organ dysfunction syndrome (MODS) (χ(2)=2.972, P=0.085), acidosis (χ(2)=3.204, P=0.073), hyperkalemia (χ(2)=2.829, P=0.093), the level of blood urea nitrogen (t=1.351, P=0.179) and serum creatinine (P=0.901) at the beginning of RRT. In the unfavorable outcome group, the proportion of patients with mechanical ventilation (45.0% (9/20) vs. 12.3% (14/114), χ(2)=12.811, P<0.01) and the incidence of extra organ injury (≥3) (30.0% (6/20) vs. 10.5% (12/114), χ(2)=6.365, P=0.041) were higher than those in the favorable outcome group. Logistic regression analysis showed that mechanical ventilation (OR=12.540, 95%CI: 3.376-46.577, P<0.01) and hyperkalemia (OR=4.611, 95%CI: 1.265-16.805, P=0.021) were the predictive factors of poor prognosis in patients with AKI treated with RRT. Conclusion: Mechanical ventilation and hyperkalemia may predict a poor prognosis in AKI patients treated with RRT.
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Affiliation(s)
- H X Xu
- Department of Nephrology and Rheumatology, Guiyang Maternal & Child Health Care Hospital, Guiyang Children's Hospital, Guiyang 550003, China
| | - X S Shao
- Department of Nephrology and Rheumatology, Guiyang Maternal & Child Health Care Hospital, Guiyang Children's Hospital, Guiyang 550003, China
| | - Y H Li
- Department of Nephrology and Rheumatology, Guiyang Maternal & Child Health Care Hospital, Guiyang Children's Hospital, Guiyang 550003, China
| | - B Ying
- Department of Nephrology and Rheumatology, Guiyang Maternal & Child Health Care Hospital, Guiyang Children's Hospital, Guiyang 550003, China
| | - J Qiu
- Department of Nephrology and Rheumatology, Guiyang Maternal & Child Health Care Hospital, Guiyang Children's Hospital, Guiyang 550003, China
| | - S S Zheng
- Department of Nephrology and Rheumatology, Guiyang Maternal & Child Health Care Hospital, Guiyang Children's Hospital, Guiyang 550003, China
| | - Y Tang
- Department of Nephrology and Rheumatology, Guiyang Maternal & Child Health Care Hospital, Guiyang Children's Hospital, Guiyang 550003, China
| | - J Feng
- Department of Nephrology and Rheumatology, Guizhou Provincial People's Hospital, Guiyang 550002, China
| | - X Y Lyu
- Department of Nephrology and Rheumatology, Liaocheng Children's Hospital, Liaocheng 252000, China
| | - L Wu
- Department of Nephrology, Anhui Provincial Children's Hospital, Hefei 230051, China
| | - H J Li
- Department of Nephrology, Henan Provincial Children's Hospital, Zhengzhou 450018, China
| | - Y Tang
- Department of Nephrology and Immunology, Xi'an Children's Hospital, Xi'an 710003, China
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Khoa DV, Hoa DT, Anh DN, Van NT, Dung DT, Huong LTT, Quyen LTB, Xu HX, Tran-Anh L. Fish-borne trematode metacercariae detected in fish commonly used for raw consumption in Ninh Binh Province, Vietnam. Trop Biomed 2020; 37:443-451. [PMID: 33612813] [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: 06/12/2023]
Abstract
Raw or undercooked fish dishes are the major sources of human infection of fishborne trematodes (FBT) and the situation of metacercarial infection in fish greatly affect the prevalence in humans, especially those fish that are commonly used for raw consumption. To investigate the situation of infection with metacercaria of FBT in fish often used to prepare raw fish dishes by local people to assess the risk of infection to humans in Ninh Binh province, Vietnam. 345 fish belonging to five species of freshwater and one species of brackish water fish were collected from fishermen or small-scale fish dealers in Kim Son and Yen Khanh districts, Ninh Binh province between May 2017 and May 2018. Metacercaria of FBT was discovered by pepsin and hydrochloric acid digestion techniques and identified by the morphological and molecular analysis. Among examined fish, 44.06% infected with FBT metacercaria and the highest prevalence was in Cyprinus carpio (86.54%), Ctenopharyngodon idellus (78.43%) and Hypophthalmichthys molitrix (66.67%) while Konosirus punctatus - the brackish water fish - were free from infection. Three species of FBT were found; namely Haplorchis pumilio (accounting for 99.84% of collected metacercariae), Haplorchis taichui and Clonorchis sinensis. The average density was 1.06 metacercariae per gram of freshwater fish and the highest number was of C. idellus (6.38 cysts/gram) followed by Cirrhinus molitorella and C. carpio. Results of the study show the high prevalence of infection of FBT metacercariae among freshwater fish often used to prepare raw fish dishes in Ninh Binh province. These findings suggest the need for greater awareness of the risk from raw fish dishes among public health authorities and people.
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Affiliation(s)
- D V Khoa
- Phuc Yen 74 Central Hospital, Hung Vuong Ward, Phuc Yen City, Vinh Phuc Province, Vietnam
| | - D T Hoa
- Ha Noi Police Hospital, Ha Noi, Vietnam
| | - D N Anh
- Department of Parasitology, Vietnam Military Medical University (VMMU), 160 Phung Hung, Ha Dong, Ha Noi, Vietnam
| | - N T Van
- Department of Parasitology, Vietnam Military Medical University (VMMU), 160 Phung Hung, Ha Dong, Ha Noi, Vietnam
| | - D T Dung
- Department of Parasitology, National Institute of Malariology, Parasitology and Entomology (NIMPE), 34 Trung Van St., Trung Van Ward, Nam Tu Liem district, Ha Noi, Vietnam
| | - L T T Huong
- Department of Microbiology and Biology, Ha Noi University of Pharmacy, 13 Le Thanh Tong, Ha Noi, Vietnam
| | - L T B Quyen
- University of Science, National University of Ha Noi, Vietnam
| | - H X Xu
- Department of Microbiology and Pathogens, Institute of Biomedicine and Pharmacy, VMMU, Ha Noi, Vietnam
| | - L Tran-Anh
- Department of Parasitology, Vietnam Military Medical University (VMMU), 160 Phung Hung, Ha Dong, Ha Noi, Vietnam
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Zhu YM, Xu HX, Lu Q, Huang YH, Jing HM, Wu X. [Correlation between multi-slice spiral CT determined epicardial adipose tissue volume and atrial fibrillation]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:969-973. [PMID: 31877592 DOI: 10.3760/cma.j.issn.0253-3758.2019.12.005] [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 determine the relationship between volume of epicardial adipose tissue (EAT) and atrial fibrillation (AF) . Methods: A total of 207 patients who hospitalized in the Department of Cardiology, Nantong University Affiliated Hospital from January 2016 to June 2018 were included in this study. They were divided into two groups, including AF group (n=125) and sinus rhythm group (n=82). The AF group included 80 paroxysmal AF (PAF) and 45 persistent AF (PeAF) patients. Total EAT and left atrial EAT (LA-EAT) volume were measured using 256 rows of multi-slice spiral CT in all patients. Echocardiographic derived left ventricular ejection fraction (LVEF) and left atrial diameter (LAD) were analyzed. Hospholipase A2 and blood lipids were examined in all patients. The baseline data and EAT volume of all groups were compared. The multivariate logistic regression was used to analyze the risk factors related to the occurrence of AF. The correlation between total EAT volume and LA-EAT volume and LAD were analyzed by Pearson correlation. Result: The volume of total EAT in patients with sinus rhythm, AF, PAF and PeAF were (92.2±32.1), (136.0±46.0), (134.2±46.3) and (140.1±52.6)cm(3), respectively. The volume of LA-EAT in patients with sinus rhythm, AF, PeAF and PAF were (27.1±7.5), (39.2±19.2), (35.9± 17.0) and (45.1±21.5)cm(3), respectively. Total EAT and LA-EAT volume were significantly larger in PAF and PeAF groups than in sinus rhythm group (all P<0.01). The LA-EAT volume was larger in PeAF group than in PAF group (P<0.01), but total EAT volume was similar between two groups (P>0.05). Logistic regression analysis showed that total EAT volume (OR=1.202, 95%CI 1.083-1.334, P=0.001), LA-EAT volume (OR=1.051, 95%CI 1.003-1.101, P=0.037) and LAD (OR=1.019, 95%CI 1.005-1.032, P=0.006) were the independent related factors of AF. Pearson correlation analysis showed that the total EAT volume was positively correlated with LAD (r=0.466, P<0.01) and LA-EAT volume was positively correlated with LAD (r=0.290, P<0.01). Conclusion: The volume of total EAT and LA-EAT measured by 256-row multi-slice spiral CT is significantly correlated with the incidence of AF.
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Affiliation(s)
- Y M Zhu
- Department of Cardiology, Affiliated Hospital of Nantong University, Nantong 226001, China
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Fang JY, Zhang HL, Xu HX. [Characteristics analysis and control countermeasures of acute hydrogen sulfide poisoning in fishing boats in a city from 2009 to 2018]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:273-277. [PMID: 31177693 DOI: 10.3760/cma.j.issn.1001-9391.2019.04.007] [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 conduct a characteristic analysis of the case of acute hydrogen sulfide poisoning in fishing boats for nearly ten years in a city, and to research on prevention and control measures, so as to provide scientific basis for formulating prevention strategies. Methods: In July 2018, collecting the data of acute hydrogen sulfide poisoning in fishing boats recorded by the Oceanic and Fishery Department & Health Sector from January 1, 2009 to June 30, 2018, the accident characteristics of acute hydrogen sulfide poisoning in fishing boats was analyzed, and compared the differences of hydrogen sulfide poisoning under different classification statistics. Results: In the past ten years, there were 14 acute poisonings in the city, 34 people were poisoned and 12 deaths (the case fatality rate was 35.3%) . According to the types of fishing vessels, the majority number of acute hydrogen sulfide poisoning incidents, poisoned persons and deaths occurred on fishing boats, accounted for 71.4% (10/14) , 76.5% (26/34) and 75.0% (9/12) respectively. From the location of the accident, 85.7% (12/14) of the acute hydrogen sulfide poisoning incidents occurred outside the fishing port. Fisher's exact test showed that the case fatality rate in within the fishing port was higher than that outside the fishing port (P=0.008) . From the cause of direct poisoning, the first three reasons were enter the fish room to rescue, enter the fish room to move fresh catch, to clean the fish room. The poisoning showed seasonal changes, Fisher's exact test showed that the fatality rate in summer was significantly higher than that in spring (P=0.044) , but there was no statistical significance in other seasons (P>0.05) . Conclusion: The acute hydrogen sulfide poisoning of fishing boats in this city has a high case fatality rate, frequent collective poisoning, and showed seasonal changes. Blind rescue, incomplete facilities, and inadequate system are important factors leading to poisoning, so daily measures and rescue measures should be strengthened to reduce the occurrence of poisoning and casualties.
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Affiliation(s)
- J Y Fang
- Taizhou Center for Disease Control and Prevention, Taizhou318000, China
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Yang J, Jiang ZM, Yu K, Lu Q, Xu JY, Zhao WG, Li XX, Kang WM, Ye X, Zhang XN, Xu HX, Li JY. [The development of malnutrition assessment criteria and the analysis of current problems]. Zhonghua Wai Ke Za Zhi 2019; 57:331-336. [PMID: 31091586 DOI: 10.3760/cma.j.issn.0529-5815.2019.05.003] [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
It is well known that parenteral and enteral nutrition support is helpful to improve clinical outcomes in patients with malnutrition or nutritional risk, and surgical nutrition has been used in China for 40 years. However, there is still insufficient awareness of malnutrition among clinical workers. There were different opinions from many experts after the publications of the European Society for Parenteral and Enteral Nutrition (ESPEN) consensus of malnutrition assessment 2015 and ESPEN guidelines on definitions and terminology of clinical nutrition 2017. Global Leadership Initiative on Malnutrition (GLIM) criteria for the diagnosis of malnutrition has also been published in 2018. Though it is lack of clinical validation, it is a big step forward. In order to achieve better prevention and treatment of malnutrition in clinical work, this present paper analyzes and compares the core contents of malnutrition assessment (diagnosis) in recent years, proposes current practical strategy for Chinese clinical workers, emphasizes that GLIM criteria cannot replace the three steps named "screening-assessment-intervention" .
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Affiliation(s)
- J Yang
- Department of Clinical Nutrition, the Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, China
| | - Z M Jiang
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - K Yu
- Department of Health-Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Q Lu
- Division of Medical and Surgical Nursing, School of Nursing, Peking University, Beijing 100191, China
| | - J Y Xu
- Department of General Surgery, National Aging Medical Center, Beijing Hospital, Beijing 100730, China
| | - W G Zhao
- Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X X Li
- Department of Pharmacy, Peking University Third Hospital, Beijing 100191, China
| | - W M Kang
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Ye
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X N Zhang
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - H X Xu
- Department of Clinical Nutrition, Army Medical Center of People's Liberation Army, Chongqing 400042, China
| | - J Y Li
- Department of Medical Oncology, the First Affiliated Hospital of Xiamen University, Xiamen 361003, China
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Abstract
Radiotherapy resistance remains the major factor limiting the radiotherapy efficacy in colorectal cancer. The Mre11-RAD50-Nbs1 (MRN) complex is known to play a critical role in the DNA double strand breaks (DSBs) repair pathways and thus facilitates radioresistance. Targeting MRN function can sensitize cancer cells to irradiation in some malignancies. In this study, we stably knocked down RAD50 protein in colorectal cancer (CRC) cell lines, HCT116 and DLD1, and evaluated their response to irradiation as well as the DSB repair dynamics. We observed that downregulation of RAD50 sensitized CRC cells to irradiation with reduction in DSB repair efficiency after exposure to irradiation. In addition, RAD50 was found to be upregulated in CRC cancerous tissue samples compared to non-cancerous adjacent tissues (NATs) and in patients who were resistant to RT. Elevated RAD50 expression was associated with poor patient survival in CRC. In conclusion, targeting RAD50 can serve as an efficient strategy to sensitize CRC cells to irradiation. RAD50 protein may be used as a biomarker for patient survival in CRC.
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Wu XL, Piña-Crespo J, Zhang YW, Chen XC, Xu HX. Tau-mediated Neurodegeneration and Potential Implications in Diagnosis and Treatment of Alzheimer's Disease. Chin Med J (Engl) 2018; 130:2978-2990. [PMID: 29237931 PMCID: PMC5742926 DOI: 10.4103/0366-6999.220313] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [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] [Indexed: 11/18/2022] Open
Abstract
Objective: To review recent research advances on tau, a major player in Alzheimer's disease (AD) pathogenesis, a biomarker for AD onset, and potential target for AD therapy. Data Sources: This review was based on a comprehensive search using online literature databases, including PubMed, Web of Science, and Google Scholar. Study Selection: Literature search was based on the following keywords: Alzheimer's disease, tau protein, biomarker, cerebrospinal fluid (CSF), therapeutics, plasma, imaging, propagation, spreading, seeding, prion, conformational templating, and posttranslational modification. Relevant articles were carefully reviewed, with no exclusions applied to study design and publication type. Results: Amyloid plaques enriched with extracellular amyloid beta (Aβ) and intracellular neurofibrillary tangles comprised of hyperphosphorylated tau proteins are the two main pathological hallmarks of AD. Although the Aβ hypothesis has dominated AD research for many years, clinical Aβ-targeting strategies have consistently failed to effectively treat AD or prevent AD onset. The research focus in AD has recently shifted to the role of tau in AD. In addition to phosphorylation, tau is acetylated and proteolytically cleaved, which also contribute to its physiological and pathological functions. Emerging evidence characterizing pathological tau propagation and spreading provides new avenues for research into the molecular and cellular mechanisms underlying AD pathogenesis. Techniques to detect tau at minute levels in CSF and blood have been developed, and improved tracers have facilitated tau imaging in the brain. These advances have potential to accurately determine tau levels at early diagnostic stages in AD. Given that tau is a potential therapeutic target, anti-tau immunotherapy may potentially be a viable treatment strategy in AD intervention. Conclusion: Detecting changes in tau and targeting tau pathology represent a promising lead in the diagnosis and treatment of AD.
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Affiliation(s)
- Xi-Lin Wu
- Neuroscience Initiative, Neuroscience and Aging Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA; Department of Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, Fujian 350001, China
| | - Juan Piña-Crespo
- Neuroscience Initiative, Neuroscience and Aging Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Yun-Wu Zhang
- Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, College of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Xiao-Chun Chen
- Department of Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, Fujian 350001, China
| | - Hua-Xi Xu
- Neuroscience Initiative, Neuroscience and Aging Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA; Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, Institute of Neuroscience, College of Medicine, Xiamen University, Xiamen, Fujian 361102, China
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Li XX, Zhao Y, Huang LX, Xu HX, Liu XY, Yang JJ, Zhang PJ, Zhang YH. Effects of smoking and alcohol consumption on lipid profile in male adults in northwest rural China. Public Health 2018; 157:7-13. [PMID: 29459348 DOI: 10.1016/j.puhe.2018.01.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 11/04/2017] [Accepted: 01/09/2018] [Indexed: 10/18/2022]
Abstract
OBJECTIVES To determine the individual and combined influences of smoking and alcohol consumption on lipid profile in male adults in northwest rural China. DESIGN Cross-sectional study. METHODS In total, 4614 subjects were enrolled in the cross-sectional study, performed between 2008 and 2012. The present study examined males aged ≥18 years from northwest rural China (n = 707). Data on current smoking and drinking status were collected. Logistic regression was used to estimate the individual and combined influences of smoking and alcohol consumption on lipid profile. Age, ethnic group, educational background, smoking (or alcohol consumption), waist circumference, body mass index, blood pressure and fasting blood glucose were adjusted as confounders. RESULTS Total cholesterol (TC)/high-density lipoprotein cholesterol (HDL-C) ratio, triglycerides (TG)/HDL-C ratio, low-density lipoprotein cholesterol (LDL-C)/HDL-C ratio and visceral adiposity index (VAI) were significantly higher in smokers than in non-smokers, whereas HDL-C was lower in smokers. TG/HDL-C ratio, LDL-C/HDL-C ratio, TG, lipid accumulation product and VAI were significantly higher in drinkers than non-drinkers. After adjustment for confounders, significant relationships were observed between smoking status and any dyslipidemia, low HDL-C and high VAI (odds ratios [ORs]: 2.53 [95% confidence interval {CI}: 1.25-5.15], 6.13 [95% CI: 2.84-13.25] and 4.39 [95% CI: 2.02-9.54], respectively). The OR for any dyslipidaemia was 1.94 (95% CI: 1.09-3.48) for subjects who smoke and drank alcohol compared with subjects who did not smoke or drink alcohol. CONCLUSIONS Abnormalities in lipid profile are correlated with smoking and alcohol consumption, which calls for intervention strategies to prevent dyslipidaemia and control risk factors for cardiovascular disease.
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Affiliation(s)
- X X Li
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - Y Zhao
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - L X Huang
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - H X Xu
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - X Y Liu
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - J J Yang
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - P J Zhang
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China
| | - Y H Zhang
- Department of Epidemiology and Health Statistics, School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region, PR China.
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Xu HX, Liang LM, Zheng JS, Duan B, Chen GL, Zhang ZH, Wang J. [A case of hereditary hemochromatosis]. Zhonghua Gan Zang Bing Za Zhi 2017; 25:541-543. [PMID: 29055997 DOI: 10.3760/cma.j.issn.1007-3418.2017.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- H X Xu
- Department of Infection Diseases, The Third Affiliated Hospital, Anhui Medical University, Hefei 230061, China
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He LB, Wang YL, Xie X, Han M, Song FQ, Wang BJ, Cheng WL, Xu HX, Sun LT. Correction: Systematic investigation of the SERS efficiency and SERS hotspots in gas-phase deposited Ag nanoparticle assemblies. Phys Chem Chem Phys 2017; 19:17469. [PMID: 28653071 DOI: 10.1039/c7cp90136d] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for 'Systematic investigation of the SERS efficiency and SERS hotspots in gas-phase deposited Ag nanoparticle assemblies' by L. B. He et al., Phys. Chem. Chem. Phys., 2017, 19, 5091-5101.
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Affiliation(s)
- L B He
- SEU-FEI Nano-Pico Centre, Key Lab of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China.
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Chen Y, Gong YW, Zhou XQ, Xu HX, Yang L, Wu YY. [Association between single nucleotide polymorphism of adenylyl cyclase 3 and essential hypertension]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 44:594-9. [PMID: 27530944 DOI: 10.3760/cma.j.issn.0253-3758.2016.07.008] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore the association between the tag single nucleotide polymorphism (tag SNP) of the adenylyl cyclase 3 (ADCY3) and the essential hypertension (EH). METHODS From April to July 2013, a total of 1 061 subjects diagnosed with EH and 1 218 control subjects were recruited from Ningbo, Zhejiang Province. Information was collected by face-to-face interview. Twelve tag SNPs were detected by ligase detection reaction technique. RESULTS After adjusted for age, gender, body mass index and other related factors, logistic regression analysis showed that 3 loci (rs11689546, rs7593130, rs2241759)were associated with EH. AG genotype of rs11689546 was associated with 0.494 times lower risk of EH (OR=0.494, 95%CI 0.246-0.993; compared with AA genotype). CT genotype of rs7593130 was associated with 1.596 times higher risk of EH (OR=1.596, 95%CI 1.009-2.524; compared with TT genotype), and CT/CC genotype of rs7593130 was associated with 1.627 times higher risk of EH (OR=1.627, 95%CI 1.034-2.559; compared with TT genotype). AG genotype of rs2241759 was associated with 0.669 times lower risk of EH (OR=0.669, 95%CI 0.503-0.891; compared with AA genotype), and CT/CC genotype of rs2241759 was associated with 0.687 times lower risk of EH (OR=0.687, 95%CI 0.518-0.911; compared with TT genotype). CONCLUSION The polymorphisms of ADCY3 are associated with lower (G allele of the rs11689546 locus and G allele of the rs2241759 locus) or higher (C allele of the rs7593130 locus) risk of essential hypertension.
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Affiliation(s)
- Y Chen
- Department of Preventive Medicine, School of Medicine, Hangzhou Normal University, Hangzhou 310018, China
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A. Richard S, Min W, Su Z, Xu HX. Epochal neuroinflammatory role of high mobility group box 1 in central nervous system diseases. AIMS Molecular Science 2017. [DOI: 10.3934/molsci.2017.2.185] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Sun YY, Xu HX, Li JH, Shi XQ, Wu JC, Ji R, Guo HY. Phytoremediation of soils contaminated with phenanthrene and cadmium by growing willow (Salix × aureo-pendula CL 'j1011'). Int J Phytoremediation 2016; 18:150-156. [PMID: 26247604 DOI: 10.1080/15226514.2015.1073668] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To assess the phytoremediation potential of an autochthonous willow (Salix × aureo-pendula CL 'J1011') for phenanthrene (PHE)-contaminated soils and PHE-cadmium (PHE-Cd) co-contaminated soils, we conducted field experiments in the lower reaches of the Yangtze River, China. Ethylenediaminetetraacetic acid (EDTA) and ethyl lactate were tested for individual and combined effects on the phytoremediation efficiency. For PHE-contaminated soils, willow plus ethyl lactate resulted in significant removal of PHE from soils after 45 days, and the PHE concentration in the shoots was significantly higher with than without ethyl lactate. For PHE-Cd co-contaminated soils, both willow plus EDTA and willow plus EDTA and ethyl lactate led to a significant decrease in the concentrations of PHE and Cd in the soils after 45 days, whereas willow alone did not. The PHE and Cd concentrations in the willow shoots were significantly enhanced in the presence of EDTA alone and with ethyl lactate, except for the PHE concentration in stems with EDTA alone. Under the same treatment, the presence of Cd had no significant influence on the PHE removal from soils. The results indicate the feasibility of using this willow together with both EDTA and ethyl lactate for the simultaneous removal of PHE and Cd from soils.
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Affiliation(s)
- Y Y Sun
- a Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University , Nanjing , China
| | - H X Xu
- a Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University , Nanjing , China
| | - J H Li
- b Jiangsu Maritime Safety Administrations , Nanjing , China
| | - X Q Shi
- a Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University , Nanjing , China
| | - J C Wu
- a Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University , Nanjing , China
| | - R Ji
- c State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University , Nanjing , China
| | - H Y Guo
- c State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University , Nanjing , China
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Liu LN, Xu HX, Zheng SG, Sun LP, Guo LH, Zhang YF, Xu JM, Liu C, Xu XH. Ultrasound Findings of Intraductal Papillary Neoplasm in Bile Duct and the Added Value of Contrast-Enhanced Ultrasound. Ultraschall Med 2015; 36:594-602. [PMID: 25188491 DOI: 10.1055/s-0034-1366672] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
PURPOSE To investigate the imaging features of intraductal papillary neoplasm in bile duct (IPNB) on baseline ultrasound and contrast-enhanced ultrasound (CEUS). MATERIALS AND METHODS The imaging features on baseline ultrasound and CEUS in 16 pathologically proven IPNB lesions in 15 patients were retrospectively analyzed. Real-time contrast specific modes and contrast agent of SonoVue were used for CEUS. RESULTS Bile duct dilation was present in all patients. The mean lengths for the intraductal papillary adenomas and adenocarcinomas were 2.5 ± 1.1 (range, 1.2 - 4.2 cm) and 5.6 ± 2.0 cm (range, 3.3 - 9.8 cm) (P = 0.004). Three imaging types of IPNB on ultrasound were depicted: bile duct dilation with intraductal mass (n = 8), bile duct dilation without intraductal mass (n = 3), and cystic-solid mixed type (n = 5). On CEUS, solid components of 13 lesions appeared hyper- (n = 12) or iso-enhancement (n = 1) in the arterial phase whereas all showed hypo-enhancement in the portal and late phases. For 3 lesions of bile duct dilation without intraductal mass, CEUS showed non-enhancement during all phases. Pre-surgical CEUS and conventional ultrasound made correct diagnoses in 12 (75.0 %) and 5(31.3 %) of 16 IPNBs respectively (P = 0.04). For CECT, correct diagnosis was also achieved in 12 (75.0 %) of 16 lesions (P = 1.00, in comparison with CEUS). CONCLUSIONS IPNB should be taken into consideration when intraductal mass or cystic-solid mass with bile duct dilation, or remarkable bile duct dilation without intraductal mass, are found on US. Intraductal mass length > 3.0 cm is more commonly found in malignant IPNB. CEUS might facilitate the diagnosis of IPNB by easily excluding the possibility of commonly found sludge, nonshadowing stones, or blood clots.
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Affiliation(s)
- L N Liu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - H X Xu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - S G Zheng
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - L P Sun
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - L H Guo
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - Y F Zhang
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - J M Xu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - C Liu
- Department of Medical Ultrasound, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - X H Xu
- Department of Ultrasound, Guangdong Medical College Affiliated Hospital, Zhanjiang, China
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Kuang M, Yang WH, Wang F, Xu HX, Wang YQ, Zhou DY, Fang D, Ma L, Feng XA. Screening of highly informative and representative microsatellite markers for genotyping of major cultivated cotton varieties. Genet Mol Res 2014; 13:9777-86. [PMID: 25501187 DOI: 10.4238/2014.november.27.5] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We screened and assessed published cotton simple sequence repeat (SSR) primers to establish a set of core SSR markers suitable for cotton major cultivars in China and analyzed genetic diversity based on the core marker set. Using a stepwise screening strategy, 12 leading cultivars for preliminary screening and 96 cultivars for rescreening were evaluated. A total of 184 polymorphic SSR markers were initially screened from 3299 candidates, and a core set of 52 SSR markers with wide genome coverage (2 markers per chromosome) was obtained. Among 96 major cultivars, 273 amplification genotypes were generated using the core marker set. Polymorphism information content values ranged from 0.28-0.83, with an average value of 0.56. The core SSR marker set detected on denaturing polyacrylamide gel electrophoresis indicated that the band genotype was either a single or double band on conventional cultivars, while most were double bands (65.4%). Among 56 hybrids, the average heterozygosis rate was 35.8%, ranging from 7.1-55.4%. Eighteen of 96 cultivars had distinct band genotypes. The genetic diversity analyzed using the of NTSYS-pc V2.10 software indicated that the Yangtze River valley cotton region had the highest polymorphic level, followed by Xinjiang and then the Yellow River valley. The genetic basis of conventional cultivars was narrower than that of hybrids. The core marker set can be used for fingerprint construction, variety identification, and purity tests of major cotton cultivars in China.
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Affiliation(s)
- M Kuang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, China
| | - W H Yang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, China
| | - F Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, China
| | - H X Xu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, China
| | - Y Q Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, China
| | - D Y Zhou
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, China
| | - D Fang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, China
| | - L Ma
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, China
| | - X A Feng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan, China
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Chen HY, Lu YY, Wen H, Lu QY, Zhang YW, Xu HX. [Expression of SLC25A38 in leukemic cells from children with acute lymphoblastic leukemia]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2014; 22:1230-4. [PMID: 25338563 DOI: 10.7534/j.issn.1009-2137.2014.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study was aimed to investigate the SLC25A38 expression in pediatric patients with acute lymphoblastic leukemia (ALL) and its clinical significance. A total of 23 newly diagnosed ALL pedictric patients were enrolled in test group, 10 pediatric patients with non-hematologic malignancies were selected as control group. The expression in protein and mRNA levels of SLC25A38 were detected by Western blot and real-time PCR respectively. The results showed that the SLC25A38 protein was positive in 8 of 23 pediatric ALL patients (34.78%), while no positive case was found in 10 controls. The relative expression level of SLC25A38 mRNA was 0.4673 ± 0.05344 in SLC25A38-protein positive group of ALL patients, while that was 1.296 ± 0.2517 in SLC25A38-protein negative group of ALL patients. The expression level of SLC25A38 mRNA in SLC25A38-protein positive group was significantly lower than that in negative group (P = 0.001) . No statistically significant difference was found in comparison of SLC25A38-protein negative group of ALL patients with the control group (P = 0.1097). The analysis of clinical data showed that there were significantly differences in sex, immunophenotype, initial peripheral white blood cell count and LDH between the SLC25A38-protein positive and SLC25A38-protein negative groups (P < 0.05). It is concluded that as a novel protein, SLC25A38 highly expressed in pediatric ALL patients, indicating that SLC25A38 may serve as a molecular marker and potential therapeutic target for acute lymphoblastic leukemia in children.
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Affiliation(s)
- Hua-Ying Chen
- Department of Hematology, Zhongshan Hospital, Xiamen University, Xiamen 361004, Fujian Province, China
| | - Yan-Yan Lu
- Department of Hematology, Zhongshan Hospital, Xiamen University, Xiamen 361004, Fujian Province, China
| | - Hong Wen
- Department of Pediatrics, The First Affiliated Hospital of Xiamen University, Xiamen 361003, Fujian Province, China. E-mail:
| | - Quan-Yi Lu
- Department of Hematology, Zhongshan Hospital, Xiamen University, Xiamen 361004, Fujian Province, China. E-mail:
| | - Yun-Wu Zhang
- Institute of Neuroscienc, Xiamen University,Xiamen 361005, Fujian Province, China
| | - Hua-Xi Xu
- Institute of Neuroscienc, Xiamen University, Xiamen 361005, Fujian Province, China
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Li XY, Xu HX, Chen JW. Rapid identification of red-flesh loquat cultivars using EST-SSR markers based on manual cultivar identification diagram strategy. Genet Mol Res 2014; 13:3384-94. [PMID: 24841783 DOI: 10.4238/2014.april.29.17] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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
Manual cultivar identification diagram is a new strategy for plant cultivar identification based on DNA markers, providing information to efficiently separate cultivars. We tested 25 pairs of apple EST-SSR primers for amplification of PCR products from loquat cultivars. These EST-SSR primers provided clear amplification products from the loquat cultivars, with a relatively high transferability rate of 84% to loquat; 11 pairs of primers amplified polymorphic products. After analysis of 24 red-fleshed loquat accessions, we found that only 7 pairs of primers could clearly separate all of them. A cultivar identification diagram of the 24 cultivars was constructed using polymorphic bands from the DNA fingerprints and EST-SSR primers. Any two of the 24 cultivars could be rapidly separated from each other, according to the polymorphic bands from the cultivars; the corresponding primers were marked in the correct position on the cultivar identification diagram. This red-flesh loquat cultivar identification diagram can separate the 24 red-flesh loquat cultivars, which is of benefit for loquat cultivar identification for germplasm management and breeding programs.
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Affiliation(s)
- X Y Li
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - H X Xu
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - J W Chen
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
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Yao CS, Wu QZ, Xu HX, Liu F, Chang LG, Song LC, Gao LS, Meng XL. Significant association between lower pulse pressure and increasing levels of a novel type of phospholipid. Genet Mol Res 2014; 13:2922-30. [PMID: 24634302 DOI: 10.4238/2014.february.21.16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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
The aim of this study was to analyze the association between pulse pressure and a novel type of phospholipid with solubility similar to that of lysophosphatidic acid (LPA), designated as AP, which was reported to be elevated during ischemia. In this cross-sectional study, 416 hypertensive patients and 252 controls aged between 35 and 70 years were enrolled consecutively. Fasting blood samples were extracted for assays of phospholipids and other biomarkers. Compared to controls, the hypertensive patients had higher levels of both LPA [odds ratio (OR) = 3.83] and AP (OR = 4.30). Changes in blood pressure did not affect the levels of LPA or AP. However AP, but not LPA, levels were significantly higher in patients with lower or higher pulse pressure (Pearson χ(2) = 11.239, P = 0.001). For patients whose pulse pressure was ≤60 mmHg, plasma levels of AP were significantly negatively correlated with pulse pressure. However, this was not observed for LPA and nine other biomarkers, including lipoproteins. Plasma levels of AP increased in hypertensive patients with higher or lower pulse pressure. Thus, attention should be paid to the possibility of cerebral ischemia in hypertensive patients when they have abnormal pulse pressure, especially for those with relatively low pulse pressure.
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Affiliation(s)
- C S Yao
- Department of Neurology, First Affiliated Hospital of Chinese Army General Hospital, Beijing, China
| | - Q Z Wu
- Department of Neurology, Peking University First Hospital, Beijing, China
| | - H X Xu
- Department of Neurology, Third Hospital of Liao-Cheng City, Shan Dong Province, China
| | - F Liu
- Department of Neurology, People's Hospital of Rui-Cheng County, Shan Xi Province, China
| | - L G Chang
- Department of Neurology, Third Hospital of Liao-Cheng City, Shan Dong Province, China
| | - L C Song
- Department of Neurology, Third Hospital of Liao-Cheng City, Shan Dong Province, China
| | - L S Gao
- Department of Internal Medicine, The 8th Hospital of Shi Jia Zhuang City, China
| | - X L Meng
- Department of Neurology, First Affiliated Hospital of Chinese Army General Hospital, Beijing, China
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Lu ZB, Tian JC, Wang W, Xu HX, Hu C, Guo YY, Peng YF, Ye GY. Impacts of Bt rice expressing Cry1C or Cry2A protein on the performance of nontarget leafhopper, Nephotettix cincticeps (Hemiptera: Cicadellidae), under laboratory and field conditions. Environ Entomol 2014; 43:209-17. [PMID: 24472210 DOI: 10.1603/en13160] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Transgenic rice expressing Bacillus thuringiensis Berliner (Bt) protein can effectively control target insects including stem borers and leaf folders. However, the potential effects of Bt rice on nontarget organisms including nontarget herbivores have not been fully evaluated. In the current study, ecological fitness parameters of the nontarget herbivore, Nephotettix cincticeps (Uhler) (Hemiptera: Cicadellidae), fed on T1C-19 (Cry1C) or T2A-1 (Cry2A) rice were compared with non-Bt rice (MH63) under laboratory conditions. A 2-yr field trial was also conducted to monitor the population dynamics of N. cincticeps in the Bt and control rice plots using the vacuum-suction machine and yellow sticky card traps. Laboratory results showed that there were no significant differences in some of biological parameters including egg developmental duration, adult fresh weight, adult longevity, and oviposition period when N. cincticeps fed on Bt or non-Bt rice was compared. However, the survival rate of N. cincticeps nymphs fed on T2A-1 Bt rice plants was significantly higher than that on the control. When N. cincticeps fed on T1C-19 Bt rice plants, its nymphal duration was significantly longer and fecundity significantly lower compared with those fed on both T2A-1 Bt and non-Bt rice plants; the preoviposition period of N. cincticeps fed on T1C-19 and T2A-1 Bt rice was also significantly shorter than those on non-Bt rice. Nonetheless, both seasonal density and population dynamics of N. cincticeps adults and nymphs were similar between Bt (T1C-19 and T2A-1) and non-Bt rice plots under field conditions. In conclusion, our results indicate that our two tested Bt rice lines would not lead to higher population of N. cincticeps. Long-term experiments to monitor the population dynamics of N. cincticeps at large scale need to be carried out to confirm the current results.
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Affiliation(s)
- Z B Lu
- State Key Laboratory of Rice Biology & Key Laboratory of Agricultural Entomology of Ministry of Agriculture, Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China
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Zhang YC, Kuang M, Yang WH, Xu HX, Zhou DY, Wang YQ, Feng XA, Su C, Wang F. Construction of a primary DNA fingerprint database for cotton cultivars. Genet Mol Res 2013; 12:1897-906. [PMID: 23408447 DOI: 10.4238/2013.january.30.3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Forty core primers were used to construct a DNA fingerprint database of 132 cotton species based on multiplex fluorescence detection technology. A high first successful ratio of 99.04% was demonstrated with tetraplex polymerase chain reaction. Forty primer pairs amplified a total of 262 genotypes among 132 species, with an average of 6.55 per primer and values of polymorphism information content varying from 0.340 to 0.882. Conflicting DNA homozygous ratios were found in various species. The highest DNA homozygous ratio was found in landrace standard cultivars, which had an 81.46% DNA homozygous ratio. The lowest occurred in a group of 2010 leading cultivars with a homozygous ratio of 63.04%. Genetic diversity of the 132 species was briefly analyzed using unweighted pair-group method with arithmetic means.
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Affiliation(s)
- Y C Zhang
- State Key Laboratory of Cotton Biology, Cotton Research Institute of China Academy of Agricultural Science, Anyang, Henan, China
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Jiao ZJ, Gao JJ, Hua SH, Chen DY, Wang WH, Wang H, Wang XH, Xu HX. Correlation between circulating myeloid-derived suppressor cells and Th17 cells in esophageal cancer. World J Gastroenterol 2012; 18:5454-61. [PMID: 23082063 PMCID: PMC3471115 DOI: 10.3748/wjg.v18.i38.5454] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 03/06/2012] [Accepted: 03/20/2012] [Indexed: 02/06/2023] Open
Abstract
AIM: To perform a comprehensive investigation into the potential correlation between circulating myeloid-derived suppressor cells (MDSCs) and Th17 cells in esophageal cancer (ECA).
METHODS: A total of 31 patients newly diagnosed with ECA and 26 healthy subjects were included in the current study. The frequencies of MDSCs and Th17 cells in peripheral blood were determined by flow cytometry. The mRNA expression of cytokines, arginase 1 (Arg1) and inducible NO synthase (iNOS) in peripheral blood mononuclear cells (PBMCs) and plasma Arg1 were assessed by real-time polymerase chain reaction and enzyme-linked immunosorbent assay, respectively.
RESULTS: There was an increased prevalence of MDSCs in the peripheral blood from ECA patients (15.21% ± 2.25%) when compared with healthy control (HC) (1.10% ± 0.12%, P < 0.0001). The plasma levels of Arg1 in ECA patients were significantly higher than those in HC (28.28 ± 4.10 ng/mL vs 9.57 ± 1.51 ng/mL, P = 0.0003). iNOS mRNA levels in the peripheral blood of ECA patients also showed a threefold increase compared with HC (P = 0.0162). The frequencies of Th17 cells (CD4+IL-17A+) were significantly elevated in ECA patients versus HC (3.50% ± 0.33% vs 1.82% ± 0.19%, P = 0.0001). Increased mRNA expression of IL-17 and ROR-γt was also observed in ECA patients compared with HC (P = 0.0041 and P = 0.0004, respectively), while the mRNA expression of IL-6 and tumor necrosis factor-α (TNF-α) showed significant decreases (P = 0.0049 and P < 0.0001, respectively). No obvious correlations were found between the frequencies of MDSCs and Th17 cells in the peripheral blood from ECA patients(r = -0.1725, P = 0.3534). Arg1 mRNA levels were positively correlated with levels of IL-6 (r = 0.6404, P = 0.0031) and TNF-α (r = 0.7646, P = 0.0001). Similarly, iNOS mRNA levels were also positively correlated with levels of IL-6 (r = 0.6782, P = 0.0007) and TNF-α (r = 0.7633, P < 0.0001).
CONCLUSION: This study reveals the relationship between circulating MDSCs and Th17 cells, which may lead to new immunotherapy approaches for ECA based on the associated metabolites and cytokines.
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Kong FZ, Zheng D, Su ZL, She P, Xu XX, Tian SS, Zhang P, Chen JG, Xu HX. [Construction of eukaryotic co-expression vector of Porphyromonas gingivalis outer membrane protein ragB and glucocorticoid-induced tumor necrosis factor receptor ligand (GITRL) and its immunogenic analysis]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2012; 28:588-591. [PMID: 22691349] [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
AIM To construct eukaryotic co-expression vector of Porphyromonas gingivalis outer membrane protein ragB and mouse glucocorticoid-induced tumor necrosis factor receptor ligand (mGITRL) and to analyze its immunogenicity in vivo. METHODS The ragB gene was obtained from pMD18-T-ragB, and then cloned into the eukaryotic expression vector pIRES and pIRES-mGITRL, respectively. The eukaryotic expression vectors: pIRES-ragB and pIRES-ragB-mGITRL were identified by double enzyme digestion and DNA sequencing, then transfected into COS7 cells by Lipofectamine(TM);2000. The expressions of ragB or mGITRL in COS7 cells were detected by Western blotting. The mice were immunized with the recombinant pIRES-ragB-mGITRL plasmid. The serum antibody level was determined by ELISA. RESULTS pIRES-ragB and pIRES-ragB-mGITRL plasmids were successfully constructed. Western blotting showed that the targeted gene was over-expressed in COS7 cells and skeletal muscle cells, respectively. The high titers of antibodies against RagB were detected in mouse serum. CONCLUSION The construction of pIRES-ragB-mGITRL co-expression vector provides the experimental basis for Porphyromonas gingivalis vaccine research, prevention and treatment of periodontitis.
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Yu DB, Chen R, Kaleri HA, Jiang BC, Xu HX, Du WX. Testing the utility of mitochondrial cytochrome oxidase subunit 1 sequences for phylogenetic estimates of relationships between crane (Grus) species. Genet Mol Res 2011; 10:4048-62. [PMID: 22194213 DOI: 10.4238/2011.december.21.7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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
Morphology and biogeography are widely used in animal taxonomy. Recent study has suggested that a DNA-based identification system, using a 648-bp portion of the mitochondrial gene cytochrome oxidase subunit 1 (CO1), also known as the barcoding gene, can aid in the resolution of inferences concerning phylogenetic relationships and for identification of species. However, the effectiveness of DNA barcoding for identifying crane species is unknown. We amplified and sequenced 894-bp DNA fragments of CO1 from Grus japonensis (Japanese crane), G. grus (Eurasian crane), G. monacha (hooded crane), G. canadensis (sandhill crane), G. leucogeranus (Siberian crane), and Balearica pavonina (crowned crane), along with those of 15 species obtained from GenBank and DNA barcoding, to construct four algorithms using Tringa stagnatilis, Scolopax rusticola, and T. erythropus as outgroups. The four phylum profiles showed good resolution of the major taxonomic groups. We concluded that reconstruction of the molecular phylogenetic tree can be helpful for classification and that CO1 sequences are suitable for studying the molecular evolution of cranes. Although support for several deeper branches was limited, CO1 data gave remarkably good separations, especially considering that our analysis was based on just a fragment of the gene and that CO1 has generally been viewed as useful only for resolving shallow divergences.
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Affiliation(s)
- D B Yu
- Department of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Che LL, Xiao DS, Xu HX, Lu L. Changes of iron stores and duodenal transepithelial iron transfer during regular exercise in rats. Biol Trace Elem Res 2011; 143:1044-53. [PMID: 21174168 DOI: 10.1007/s12011-010-8919-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2010] [Accepted: 12/05/2010] [Indexed: 11/28/2022]
Abstract
It is unclear whether regular exercise depletes body iron stores and how exercise regulates iron absorption. In this study, growing female Sprague-Dawley rats were fed a high-iron diet (300 mg iron/kg) and subjected to swimming for 1, 3, or 12 months. Their body weight, liver nonheme iron content (NHI), spleen NHI, blood hemoglobin (Hb) concentration, hematocrit (Hct), and kinetics of 59Fe transfer across isolated duodenal segments were then compared with sedentary controls. The main results were as follows: exercise for 1 month enhanced the transepithelial 59Fe transfer and increased liver NHI content and Hb concentration; exercise for 3 months inhibited transepithelial 59Fe transfer without affecting the liver and spleen NHI content, Hb concentration, and Hct; exercise for 12 months did not affect these parameters as compared with the corresponding sedentary controls; and the changes in transepithelial iron transfer were not associated with basolateral iron transfer. Our findings demonstrated that chronic, regular exercise in growing rats with a high dietary iron content does not deplete iron stores in the liver and spleen and may possibly enhance or inhibit duodenal iron absorption and even maintain duodenal iron absorption at the sedentary level, at least, in part depending on growth.
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Affiliation(s)
- Li-Long Che
- Department of Physiology, School of Medical Science and Laboratory Medicine, Jiangsu University, Zhenjiang, 212013, China
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Shotorbani SS, Su ZL, Xu HX. Toll-like receptors are potential therapeutic targets in rheumatoid arthritis. World J Biol Chem 2011; 2:167-72. [PMID: 21912729 PMCID: PMC3158866 DOI: 10.4331/wjbc.v2.i7.167] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 07/14/2011] [Accepted: 07/21/2011] [Indexed: 02/05/2023] Open
Abstract
Toll-like receptors (TLRs) are found on the membranes of pattern recognition receptors and not only play important roles in activating immune responses but are also involved in the pathogenesis of inflammatory disease, injury and cancer. Furthermore, TLRs are also able to recognize endogenous alarmins released by damaged tissue and necrosis and/or apoptotic cells and are present in numerous autoimmune diseases. Therefore, the release of endogenous TLR ligands plays an important role in initiating and driving inflammatory diseases. Increasing data suggest a role for TLR signaling in rheumatoid arthritis, which is an autoimmune disease. Although their involvement is not comprehensively understood, the TLRs signaling transducers may provide potential therapeutic targets.
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Affiliation(s)
- Siamak Sandoghchian Shotorbani
- Siamak Sandoghchian Shotorbani, Zhao-Liang Su, Hua-Xi Xu, Department of Immunology, Institute of Laboratory Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu Province, China
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Wang JP, Xu HX, Wu YX, Ye YJ, Ruan JL, Xiong CM, Cai YL. Ent-16β,17-dihydroxy-kauran-19-oic acid, a kaurane diterpene acid from Siegesbeckia pubescens, presents antiplatelet and antithrombotic effects in rats. Phytomedicine 2011; 18:873-878. [PMID: 21377851 DOI: 10.1016/j.phymed.2011.01.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 11/29/2010] [Accepted: 01/23/2011] [Indexed: 05/30/2023]
Abstract
The antiplatelet and antithrombotic effects of ent-16β,17-dihydroxy-kauran-19-oic acid (DDKA) isolated from Siegesbeckia pubescens were investigated with different methods both in vitro and in vivo. We tested the antithrombotic activity of DDKA in arterio-venous shunt model. The effects of DDKA on adenosine diphosphate (ADP)-, Thrombin-, Arachidonic acid-induced rat platelets aggregation were tested in vitro. We also assessed its bleeding side effect by measuring coagulation parameters after intravenous administration for 5 days and investigated the potential mechanisms underlying such activities. In vivo, DDKA significantly reduced thrombus weight in the model of arterio-venous shunt. Meanwhile, DDKA increased plasma cAMP level determined by radioimmunoassay in the same model. Notably, DDKA prolonged PT and APTT in rats after intravenous administration DDKA for successive 5 days. In vitro, pretreatment with DDKA on washed rat platelets significantly inhibited various agonists stimulated platelet aggregation and caused an increase in cAMP level in platelets activated by ADP. These findings support our hypothesis that DDKA possesses antiplatelet and antithrombotic activities. The mechanisms underlying such activities may involve the anticoagulatory effect and cAMP induction.
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Affiliation(s)
- J P Wang
- Key Laboratory of Natural Medicinal Chemistry and Resources Evaluation of Hubei Province, College of Pharmacy, Huazhong University of Science and Technology, 13# Hangkong Road, Wuhan 430030, PR China
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Zhang H, Jiao ZJ, Mao CM, Jiang Q, Tong J, Wang SJ, Xu HX. [A preliminary study on the effect of lincomycin on the immune function of dendritic cell line DC2.4]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2011; 27:763-766. [PMID: 21722529] [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: 05/31/2023]
Abstract
AIM To explore the effect of lincomycin (lin) on the immune function of dendritic cell (DCs) line DC2.4. METHODS Three experimental groups, namely, DC2.4 cells group, DC2.4 Cells+LPS group and DC2.4 cells +LPS +lin group were established (LPS and lin were 500 ng/mL). The morphological changes in each group were observed under inverted microscope. The MHC class II , CD86 and CD80 on the DC2.4 cells were detected by flow cytometer. The effects of lipopolysaccharide (LPS) and LPS +lin on the DC2.4 cells immuno-stimulatory capacity were evaluated by allogeneic mixed leukocytes reaction (MLR) between DC2.4 cells and T cells. ELISA was adopted to quantitate the level of IFN-γin the supernatant of cultured DC2.4 cells and T cells in each group. RESULTS DC2.4 cells showed typical morphology of immature DCs. When stimulated with LPS or LPS combined with lin, DC2.4 cells exhibited typical maturate DCs modality. LPS of 500 ng/mL could significantly up-regulate the expression of MHC class II , CD86 and CD80 on DC2.4 cells and also augment stimulatory action of DC2.4 cells on T cells proliferation and secretion of IFN-γ. However, compared with LPS alone, the treatment of lin (500 ng/mL) combined with LPS down-regulated the immmuno-regulation function of DC2.4 cells. CONCLUSION Lin can partly inhibit the immuno-regulation function of maturate DC2.4 cells.
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Affiliation(s)
- Hui Zhang
- Department of Clinical Laboratory, the Affiliated Hospital of Jiangsu University, Zhenjiang, China
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Gong Y, Xu HX, Lin M, Gu Y. An iatrogenic complication of internal jugular vein catheterization for hemodialysis. Ir J Med Sci 2011; 181:135-7. [PMID: 21290197 DOI: 10.1007/s11845-011-0694-4] [Citation(s) in RCA: 5] [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] [Received: 02/09/2009] [Accepted: 01/19/2011] [Indexed: 01/17/2023]
Abstract
BACKGROUND Central venous catheterization is increasingly performed as a temporary vascular access for hemodialysis therapy in developing countries and it can be associated with serious complications. Iatrogenic common carotid artery-jugular vein arteriovenous fistula is a rare but serious complication of internal jugular vein catheterization for hemodialysis access. Few cases of such complication of uremic patients on hemodialysis have been reported in the literature. AIM To report a case of iatrogenic common carotid artery-jugular vein arteriovenous fistula caused by internal jugular vein catheterization of a hemodialysis patient and its surgical repair. RESULT The iatrogenic arteriovenous fistula was repaired. CONCLUSION Acquaintance of anatomical landmarks, careful preparation, experience of the physician and the ultrasound guidance are important factors to reduce the risk of complications during internal jugular vein catheterization. Surgical repair should be performed earlier in order to avoid the development of other serious complications.
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Affiliation(s)
- Yu Gong
- Department of Nephrology, Huashan Hospital, Fudan University, Shanghai 200040, China.
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Mao F, Xu WR, Qian H, Zhu W, Yan YM, Shao QX, Xu HX. Immunosuppressive effects of mesenchymal stem cells in collagen-induced mouse arthritis. Inflamm Res 2009; 59:219-25. [PMID: 19763787 DOI: 10.1007/s00011-009-0090-y] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2009] [Revised: 08/14/2009] [Accepted: 08/24/2009] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE The objective of this study was to investigate the efficacy of mesenchymal stem cell (MSC) in the treatment of arthritis. METHODS Mesenchymal stem cells were injected intravenously into mice with collagen-induced arthritis (CIA). Arthritic indexes were evaluated, and the levels of the pro- and anti-inflammatory cytokines interleukin-10 (IL-10), gamma interferon (IFN-gamma)-inducible protein 10 (IP-10), chemokine (C-X-C motif) receptor 3 (CXCR3), interleukin-17A (IL-17A), and tumor necrosis factor alpha (TNF-alpha) in serum or splenic cells were determined using real-time RT-PCR, Western blotting, and enzyme-linked immunosorbent assay (ELISA). The proliferation of dendritic cell line D2SC cells was determined using (3)H-TdR incorporation assay. RESULTS Upon injection of MSCs, overall arthritis symptoms were significantly improved in the CIA mouse models as indicated by the paw edema. Consistent with this observation, serum levels of pro-inflammatory cytokine TNF-alpha and inflammatory cell infiltration decreased significantly 12 days after MSC injection, while the expression of anti-inflammatory cytokines IL-10, IP-10, and CXCR3 was increased in splenocytes. In addition, we provided evidence that MSCs may directly promote the proliferation of D2SC cells and the expression of IP-10 in D2SC cells in vitro. CONCLUSION Mesenchymal stem cells significantly enhance the efficacy of collagen-induced arthritis treatment, likely through the modulation of the expression of various cytokines.
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Affiliation(s)
- Fei Mao
- School of Medical Science and Laboratory Medicine, Key Institute of Clinical Laboratory Science, Jiangsu University, 301 Xuefu Road, 212013, Zhenjiang, Jiangsu, People's Republic of China.
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Gong Y, Chen N, Wang FQ, Wang ZH, Xu HX. Serum proteome alteration of severe sepsis in the treatment of continuous renal replacement therapy. Nephrol Dial Transplant 2009; 24:3108-14. [DOI: 10.1093/ndt/gfp231] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Xu HX, Jing T, Tomooka N, Kaga A, Isemura T, Vaughan DA. Genetic diversity of the azuki bean (Vigna angularis (Willd.) Ohwi & Ohashi) gene pool as assessed by SSR markers. Genome 2008; 51:728-38. [PMID: 18772951 DOI: 10.1139/g08-058] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To facilitate the wider use of genetic resources including newly collected cultivated and wild azuki bean germplasm, the genetic diversity of the azuki bean complex, based on 13 simple sequence repeat (SSR) primers, was evaluated and a core collection was developed using 616 accessions originating from 8 Asian countries. Wild germplasm from Japan was highly diverse and represented much of the allelic variation found in cultivated germplasm. The SSR results together with recent archaeobotanical evidence support the view that Japan is one center of domestication of azuki bean, at least for the northeast Asian azuki bean. Cultivated azuki beans from China, Korea, and Japan were the most diverse and were genetically distinct from each other, suggesting a long and relatively isolated history of cultivation in each country. Cultivated azuki beans from eastern Nepal and Bhutan were similar to each other and quite distinct from others. For two primers, most eastern Nepalese and Bhutanese cultivated accessions had null alleles. In addition, wild accessions from the Yangtze River region of China and the Himalayan region had a null allele for one or the other of these primers. Whether the distinct diversity of azuki bean in the Himalayan region is due to introgression or separate domestication events requires further study. In contrast, western Nepalese azuki beans showed an SSR profile similar to that of Chinese azuki beans. The genetic distinctness of cultivated azuki beans from Vietnam has been revealed for the first time. The specific alleles indicate that Vietnamese azuki beans have been cultivated in isolation from Chinese azuki beans for a long time. Wild germplasm from the Himalayan region showed the highest level of variation. Based on the results, Himalayan germplasm could be considered a novel gene source for azuki bean breeding. A comparison with mungbean SSR analysis revealed that the mean gene diversity of cultivated azuki bean (0.74) was much higher than that of cultivated mungbean (0.41). The reduction in gene diversity due to domestication, the domestication bottleneck, in azuki bean is not strong compared with that in mungbean.
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Affiliation(s)
- H X Xu
- College of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450002, China
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Li Y, Pan WS, Chen SL, Xu HX, Yang DJ, Chan ASC. Pharmacokinetic, Tissue Distribution, and Excretion of Puerarin and Puerarin-Phospholipid Complex in Rats. Drug Dev Ind Pharm 2008; 32:413-22. [PMID: 16638679 DOI: 10.1080/03639040600559123] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [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: 12/15/2022]
Abstract
Puerarin is a potential therapeutic agent for cardiovascular diseases. But its poor oral bioavailability restricts its clinical application. In present study, as an evaluation of a formulation to improve the bioavailability of the drug, puerarin and its phospholipid complex were given to rats by intragastrically (i.g.) administration to compare pharmacokinetic, tissue distribution, and excretion. Serum samples were obtained at designated times after a single oral dose of 400 mg/kg puerarin or its complex. Tissue samples (heart, liver, spleen, kidney, lung, and brain), urine, and feces were collected and analyzed by a sensitive and specific high performance liquid chromatography (HPLC) method after i.g. administration of puerarin or its phospholipid complex. Compartmental and non-compartmental analyses were applied to the serum concentration versus time data. Pharmacokinetic parameters were calculated using the 3P97 pharmacokinetic software package. An open two-compartment, first-order model was selected for pharmacokinetic modeling. The results showed that after i.g. administration of 400 mg/kg puerarin and its phospholipid complex (equivalent to 400 mg/kg of puerarin), the pharmacokinetic parameters of the two formulations were different. The serum concentrations reached peaks at 0.894+/-0.521 h and 0.435+/-0.261 h, respectively, indicating the complex was more readily absorbed in serum than puerarin. The maximum concentrations for puerarin and its complex were 1.367+/-0.586 mg.L(-1) and 2.202+/-1.28 mg.L(-1) and AUC were 5.779+/-1.662 mg.h. L(-1) and 8.456+/-0.44 mg.h L(-1), respectively, indicating a higher bioavailability for the complex. The widely distribution characteristics of puerarin and its complex in tissues post-i.g. administration was identical and in a descending order as follows: lung, kidney, liver, heart, spleen, and brain. However, the amount was different. Puerarin distribution was higher in heart, lung, and brain after administering the complex. The cumulative 72 h urinary excretion of puerarin after i.g. administration of puerarin and its complex accounted for 1.05%, 1.11% of the administered dose, respectively. The cumulative feces excretion of puerarin was 32.3% and 25.5%. To sum up, oral administration of puerarin phospholipid complex modified the pharmacokinetics and tissue distribution of puerarin and it could be an effective oral formulation for puerarin.
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Affiliation(s)
- Y Li
- School of Pharmacy of Shenyang Pharmaceutical University, Shenyang 110016, China
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Wong YF, Zhou H, Wang JR, Xie Y, Xu HX, Liu L. Anti-inflammatory and analgesic effects and molecular mechanisms of JCICM-6, a purified extract derived from an anti-arthritic Chinese herbal formula. Phytomedicine 2008; 15:416-426. [PMID: 18424100 DOI: 10.1016/j.phymed.2008.02.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2007] [Revised: 01/08/2008] [Accepted: 02/27/2008] [Indexed: 05/26/2023]
Abstract
The anti-inflammatory and anti-nociceptive effects and the molecular mechanisms of JCICM-6, a purified extract derived from an anti-arthritic Chinese herbal formula composed of Caulis Sinomenii, Aconiti laterralis Preparata, Rhizoma Curcumae longae, Radix Paeoniae albae, and Cortex Moutan, were examined for the first time. JCICM-6 was prepared using pharmaceutical extraction technology, purified by Amberlite XAD-7HP polymeric resin. Pharmacologically, in carrageenan-induced edema and carrageenan-evoked thermal hyperalgesia in paws of rats, the oral administration of JCICM-6 at dosages of 0.4, 0.8, and 1.6g/kg demonstrated significant inhibition with a dose-dependent manner. Mechanistic studies showed that JCICM-6 effectively decreased the production of the pro-inflammatory cytokines of IL-6 and IL-1beta and expression of COX-2 and iNOS proteins, and simultaneously elevated the level of anti-inflammatory cytokine IL-4 in the carrageenan-injected rat paw tissues and exudates. The positive reference drug, indomethacin at a dosage of 10mg/kg, demonstrated inhibitory potency in both rat models, but it could not augment the production of IL-4, indicating JCICM-6 and indomethacin might possess different pharmacological properties and molecular mechanisms although both have anti-inflammatory and analgesic effects in rats. These results suggest that JCICM-6 would be a valuable candidate for further investigation as a new anti-arthritic drug.
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Affiliation(s)
- Y F Wong
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
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Tong J, Wang SJ, Chen J, Mao CM, Yang YL, Yang M, Hu ZJ, Zhi DY, Xu HX. [Prokaryotic expression of human GITRaa27-165 and preparation of its polyclonal antibody]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2008; 24:243-246. [PMID: 18328184] [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: 05/26/2023]
Abstract
AIM To express and purify the extracellular region of human glucocorticoid-induced tumor necrosis factor (hGITR(aa27-165)), and to prepare and identify the polyclonal antibody (pAb) against this fusion protein. METHODS The 429 bp DNA sequence of hGITR(aa27-165) was obtained from pGEM T-hGITR by PCR and then it was inserted into pQE30 plasmid to construct the prokaryotic expression plasmid pQE30-hGITR(aa27-165). pQE30-hGITR(aa27-165) was transformed into E.coli. The target fusion protein was expressed with the induction of Isopropyl beta-D-1-thiogalacto- pyranoside (IPTG) and purified by Ni(2+)-NTA affinity chromatography column. The antiserum against hGITR(aa27-165) was obtained from the rabbits immunized with hGITR(aa27-165). The titer of pAb was detected by ELISA and the specificity of pAb was identified by Western blot. RESULTS The prokaryotic expression plasmid pQE30-GITR(aa27-165) was constructed successfully. The culture condition in which the target fusion protein was highly expressed was found out: the optimal concentration of IPTG was 0.5 mmol/L, the culture temperature was 30 degree centigrade and the culture time was 6 h. The GITR(aa27-165) fusion protein was effectively expressed in E.coli as inclusion body. Soluble protein was obtained through denaturation and refolding procedure. The fusion protein was purified by Profinity IMAC Ni-Charged Resin affinity column with above 90% purity. The anti-GITR(aa27-165) pAb was prepared by immunizing the rabbits with the purified target fusion protein. ELISA showed the titer of pAb was 1:1.6 x 10(5). Western blot analysis confirmed anti-GITR(aa27-165) pAb was of good specificity. CONCLUSION The fusion protein hGITR(aa27-165) with high purity has been obtained and the anti-hGITR(aa27-165) pAb with high titer and good specificity has been prepared. Our study may be conductive to further research into the molecular mechanism of action between human GITR and GITRL.
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Affiliation(s)
- Jia Tong
- Department of Immunology and Laboratory Immunology, School of Medical Technology, Zhenjiang 212013, China
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Wang SY, Yang M, Xu XP, Qiu GF, Ma J, Wang SJ, Huang XX, Xu HX. Intranasal delivery of T-bet modulates the profile of helper T cell immune responses in experimental asthma. J Investig Allergol Clin Immunol 2008; 18:357-365. [PMID: 18973099] [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: 05/27/2023] Open
Abstract
BACKGROUND Allergic asthma is caused by aberrant helper T (T(H)) type 2 immune responses in susceptible individuals, characterized by airway hyperresponsiveness, chronic airway inflammation, and mucus hypersecretion. Its prevalence continues to increase, but optimal treatment remains a challenge. The transcription factor T-bet is a master regulator of T(H)1 lineage commitment and strongly promotes interferon gamma expression during T(H)1 cell differentiation. OBJECTIVE The aim of this study was to explore the role of intranasal delivery of T-bet on the differentiation of T(H) cell subsets and airway inflammation in the ovalbumin (OVA)-induced mouse model of allergic airway inflammation. METHODS BALB/c mice were sensitized by intraperitoneal injection of OVA and challenged with nebulized OVA. Four days before the inhalation challenge, the sensitized mice were subjected to intranasal delivery of a recombinant adeno-associated virus vector carrying murine T-bet gene (AAV-T-bet). Expression of the transcription factors T-bet, GATA3, and Foxp3 was then assayed in the lungs, and airway histology was analyzed along with other inflammatory parameters, such as eosinophils and cytokines in bronchoalveolar lavage (BAL) fluid, and total and OVA-specific immunoglobulin (Ig) E in serum. RESULTS Intranasal administration of AAV-T-bet efficiently balanced the T(H)1/T(H)2 transcription factor and cytokine profile and significantly decreased the number of eosinophils in BAL fluid. It also resulted in a reduction of peribronchial inflammation scores and serum IgE levels in OVA-sensitized and challenged mice during the effector phase. CONCLUSIONS Our data show that intranasal delivery of T-bet can promote a T(H)1 immune response, restore a balanced Th immune response, and inhibit airway inflammation during the challenge phase in a mouse model of allergic airway inflammation.
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Affiliation(s)
- S Y Wang
- Department of Pediatrics, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
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Cai X, Wong YF, Zhou H, Liu ZQ, Xie Y, Jiang ZH, Bian ZX, Xu HX, Liu L. Manipulation of the induction of adjuvant arthritis in Sprague-Dawley rats. Inflamm Res 2007; 55:368-77. [PMID: 17122958 DOI: 10.1007/s00011-006-6026-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [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: 11/30/2022] Open
Abstract
OBJECTIVE To investigate the roles of various variables in the induction of adjuvant-induced arthritis (AIA) in the outbred Sprague-Dawley (SD) rats, and further characterize its arthritic features by comprehensive examinations. METHODS The roles of different preparative techniques, inoculation routes and doses of Mycobacterium tuberculosis (MT) suspension as well as the sex preference in the induction of AIA were comparatively studied using clinical assessment. The hind paws of animals were analyzed by radiological and histological examinations. The serum levels of cytokines interleukin (IL)-1beta, IL-6, and tumor necrosis factor (TNF)-alpha were determined by ELISA. RESULTS The particle size and dose of MT played a dominant role in the induction and severity of AIA. Male rats manifested markedly more severe arthritic signs than female rats. After subcutaneously inoculated with 500 microg MT, male rats developed pronounced arthritis with 100% incidence and low variable clinical signs. Even using only 62.5 microg MT, AIA was efficiently induced in male rats and characterized by upregulated expression profiles of IL-1beta, IL-6 and TNF-alpha. CONCLUSIONS Since outbred SD rats are much cheaper and more readily available than Lewis rats, this well-developed SD rat AIA model is an efficient and cost-effective arthritis model available for screening novel anti-arthritic agents.
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Affiliation(s)
- X Cai
- Research and Development Division, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, China
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Cai X, Wong YF, Zhou H, Xie Y, Liu ZQ, Jiang ZH, Bian ZX, Xu HX, Liu L. The comparative study of Sprague-Dawley and Lewis rats in adjuvant-induced arthritis. Naunyn Schmiedebergs Arch Pharmacol 2006; 373:140-7. [PMID: 16703402 DOI: 10.1007/s00210-006-0062-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2006] [Accepted: 03/13/2006] [Indexed: 12/18/2022]
Abstract
The outbred Sprague-Dawley (SD) rats, similar to the inbred Lewis (LEW) rats, have been recently demonstrated to be highly susceptible to adjuvant-induced arthritis (AIA). We herein compared AIA in SD and LEW rats in terms of clinical, histological, radiological, and immuno-inflammatory features. The results showed that, following inoculation with a ground Mycobacterium tuberculosis (MT) suspension, SD and LEW rats manifested closely similar disease progression, with 100% incidence and similar severity. The development of arthritis was accompanied by significantly higher erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) levels than in control rats. Radiographic examination of the hind paws showed that both SD and LEW AIA rats manifested conspicuous soft tissue swelling, bone matrix resorption, periosteal new bone formation and bone erosion, while histopathological analysis of the synovial joints revealed marked cellular infiltration, angiogenesis, synovial hyperplasia, pannus formation, narrowing of joint space, and cartilage and bone destruction. Moreover, in relation to disease progression, serum tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta (IL-1beta), and IL-6 levels were markedly overexpressed in both SD and LEW AIA versus control rats, and SD and LEW AIA rats exhibited divergent profiles for the expression of TNF-alpha and IL-1beta. Taken together, these results demonstrated that the SD rat AIA model shares several arthritic features with the comparable model in LEW rats. Hence, given the more favorable characteristics of SD rats than LEW rats (i.e., lower cost, wider availability, and heterogenic background), this SD rat AIA model is more cost effective and advantageous for screening and testing novel anti-arthritic agents.
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Affiliation(s)
- X Cai
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, People's Republic of China
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Ma SC, He ZD, Deng XL, But PP, Ooi VE, Xu HX, Lee SH, Lee SF. In vitro evaluation of secoiridoid glucosides from the fruits of Ligustrum lucidum as antiviral agents. Chem Pharm Bull (Tokyo) 2001; 49:1471-3. [PMID: 11724241 DOI: 10.1248/cpb.49.1471] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.3] [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: 11/22/2022]
Abstract
Six secoiridoid glucosides, lucidumoside C (1), oleoside dimethylester (2), neonuezhenide (3), oleuropein (4), ligustroside (5) and lucidumoside A (6), isolated from the fruits of Ligustrum lucidum (Oleaceae), were examined in vitro for their activities against four strains of pathogenic viruses, namely herpes simplex type I virus (HSV-1), influenza type A virus (Flu A), respiratory syncytial virus (RSV) and parainfluenza type 3 virus (Para 3). Antiviral activities were evaluated by the cytopathic effect (CPE) inhibitory assay. The purpose was to check if the antioxidative potency of these glucosides correlated with their antiviral potency. Results showed that none of the glucosides had any significant activity against HSV-1 and Flu A. Oleuropein, however, showed significant antiviral activities against RSV and Para 3 with IC50 value of 23.4 and 11.7 microg/ml, respectively. Lucidumoside C, oleoside dimethylester and ligustroside showed potent or moderate antiviral activities against Para 3 with IC50 values of 15.6-20.8 microg/ml. These results also documented that the anti-oxidative potency of these secoiriodoid glucosides was not directly related to their antiviral effects.
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Affiliation(s)
- S C Ma
- Department of Biology and Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin
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Abstract
The ethanol extract of the fruits of Ligustrum lucidum was shown to have inhibitory effects on the hemolysis of red blood cells induced by 2,2'-azo-bis-(2-amidinopropane) dihydrochloride. Bioassay-guided analysis led to the isolation of ten secoiridoid glucosides. Two of them were new, lucidumosides C and D. Their structures were elucidated by spectroscopic methods. The other eight compounds were identified as oleoside dimethyl ester, ligustroside, oleuropein, nuezhenide, isonuezhenide, neonuezhenide, lucidumoside A and lucidumoside B. Five compounds, oleoside dimethyl ester, oleuropein, neonuezhenide, lucidumoside B and lucidumoside C, exhibited strong antioxidant effect against hemolysis of red blood cells induced by free radicals.
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Affiliation(s)
- Z D He
- Department of Biology, Institute of Chinese Medicine, The Chinese University of Hong Kong
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Abstract
Thirty eight plant-derived flavonoids representing seven different structural groups were tested for activities against antibiotic-resistant bacteria using the disc-diffusion assay and broth dilution assay. Among the flavonoids examined, four flavonols (myricetin, datiscetin, kaempferol and quercetin) and two -flavones (flavone and luteolin) exhibited inhibitory activity against methicillin-resistant Staphylococcus aureus (MRSA). Myricetin was also found to inhibit the growth of multidrug-resistant Burkholderia -cepacia, vancomycin-resistant enterococci (VRE) and other medically important organisms such as -Klebsiella pneumoniae and Staphylococcus epidermidis. Myricetin was bactericidal to B. cepacia. The results of the radiolabel incorporation assay showed that myricetin inhibited protein synthesis by -B. cepacia. The structure-activity relationship of these flavonoids is discussed.
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Affiliation(s)
- H X Xu
- Department of Applied Oral Science, Faculty of Dentistry, Dalhousie University, Halifax, Nova Scotia, Canada B3H 3J5
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Abstract
Two secoiridoid glucosides, lucidumosides A and B, as well as six known glucosides, oleoside dimethyl ester, ligustroside, oleuropein, nuezhenide, isonuezhenide, and neonuezhenide, were isolated from the fruits of Ligustrum lucidum. Their structures were elucidated by spectroscopic methods.
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Affiliation(s)
- Z D He
- Department of Biology and Institute of Chinese Medicine, The Chinese University of Hong Kong
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Wang SJ, Xu HX, Liu GZ. Tripterygium wilfordii saponins and interleukin-10 prevent induction of experimental autoimmune thyroiditis by dendritic cells. Acta Pharmacol Sin 2000; 21:919-23. [PMID: 11501044] [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: 02/21/2023] Open
Abstract
AIM To study the roles of Tripterygium wilfordii saponins (TII) and interleukin-10 (IL-10) on dendritic cells (DC)-induced experimental autoimmune thyroiditis (EAT). METHODS We used mice as autoimmune thyroiditis model animals and divided them into 4 groups, namely DC group, TII group, IL-10 group, and control group. The level of thyroglobulin (Tg) antibody was assayed by ELISA. TNF beta production in the cultured supernatants and nitric oxide (NO) in the serum were measured by biological activation assay and Griess reaction, respectively. Tg-stimulated proliferation of lymphocytes was detected with MTT incorporation assay. The histopathological analysis of thyroid was carried out. RESULTS Tg-pulsed DC were able to induce EAT with increase in the concentration of TgAb in serum and lymphocytes infiltration in thyroid. After treatment with TII or IL-10, DC could not induce EAT with lower levels of TgAb and no lymphocyte infiltration. The concentration of NO in serum, TNF beta activation, and the proliferation of lymphocytes in response to thyroglobulin in TII or IL-10 group were lower than those in DC group. CONCLUSION TII and IL-10 are able to strongly inhibit the ability of DC to induce experimental autoimmune thyroiditis.
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Affiliation(s)
- S J Wang
- Department of Immunology, Zhenjiang Medical College, Zhenjiang 212001, China.
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Abstract
Methanolic extract and two purified compounds (brazilin and hematoxylin) from Caesalpinia sappan were examined for their relaxant effects in isolated rat thoracic aorta. The methanolic extract significantly and dose-dependently relaxed the alpha1-receptor agonist phenylephrine-precontracted aortic rings, without affecting passive tension of these vessels. Removal of the vascular endothelium, inhibition of nitric oxide (NO) synthase with 0.1 mM Nomega-nitro-L-arginine and of cGMP biosynthesis with 10 microM methylene blue abolished the vasorelaxant effects of the herbal extract at doses up to 30 microg/ml. Similar vasorelaxant effects were observed with brazilin and hematoxylin. Therefore, these results suggest that brazilin and hematoxylin may be responsible for the vascular relaxant effects of C. sappan, via endogenous NO and subsequent cGMP formation. The vascular relaxant effects of the plant may contribute to its therapeutic actions.
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MESH Headings
- Animals
- Aorta, Thoracic/drug effects
- Aorta, Thoracic/enzymology
- Benzopyrans/pharmacology
- Drugs, Chinese Herbal/chemistry
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/enzymology
- Fabaceae/chemistry
- Fabaceae/therapeutic use
- Hematoxylin/pharmacology
- In Vitro Techniques
- Male
- Muscle Contraction/drug effects
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/enzymology
- Nitric Oxide Synthase/metabolism
- Nitric Oxide Synthase Type III
- Phytotherapy
- Plants, Medicinal
- Rats
- Rats, Sprague-Dawley
- Vasodilator Agents/chemistry
- Vasodilator Agents/isolation & purification
- Vasodilator Agents/pharmacology
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Affiliation(s)
- Y W Xie
- lnstitute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, People's Republic of China
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Abstract
Geumonoid (1), a new triterpene, was isolated from Geum japonicum. Its structure was elucidated on the basis of 1D, 2D NMR and MS spectroscopic analysis. Compound 1 showed inhibitory activity against HIV-1 protease.
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Affiliation(s)
- H X Xu
- Department of Biology and Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, NT
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Abstract
Twenty-nine flavonoids and six hydrolyzable tannins were studied for their inhibitory activity against human immunodeficiency virus (HIV)-1 protease using fluorescence and HPLC assays. Among the flavonoids, flavones, flavanones, flavonols, catechols and chalcones, the flavonols were the most active category while flavanones and catechols displayed low activity. Quercetin was the most potent inhibitor of the target enzyme with an IC50 value of 58.8 microM, while butein and luteolin showed moderate activity. Of the hydrolyzable tannins tested, three ellagitannins which contain a hexahydroxvdiphenoyl (HHDP) unit linked to the O-3 and 0-6 positions of the sugar, were found to strongly inhibit HIV-1 protease. The IC50 values of corilagin and repandusinic acid on HIV-1 protease were 20.7 and 12.5 microM, respectively.
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Affiliation(s)
- H X Xu
- Department of Biology and Institute of Chinese Medicine, The Chinese University of Hong Kong
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