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Wang YM, Zhang MQ, Chen ZP, Ji R, Cai J, Qiao T. [Correlation between C-reactive protein to albumin ratio and restenosis after femoral popliteal stenting in patients with lower extremity arteriosclerotic obliterans]. Zhonghua Wai Ke Za Zhi 2023; 61:1058-1064. [PMID: 37932141 DOI: 10.3760/cma.j.cn112139-20230815-00047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Objective: To investigate the study of the correlation between C-reactive protein to albumin ratio (CAR) and restenosis after stenting in patients with lower extremity atherosclerotic occlusive disease(LEASO). Methods: The clinical data of 95 patients with LEASO admitted to the Department of Vascular Surgery of Nanjing Drum Tower Hospital from June 2020 to December 2022 were retrospectively analyzed. There were 67 males and 28 females,aged (73.1±9.4) years (range:51 to 92 years). The patients were classified into the restenosis group (n=61) and the patency group (n=34) according to the CT angiography results. Independent sample t test,Mann-Whitney U test and χ2 test were used to compare the data between two groups. Risk factors for restenosis after femoropopliteal artery stenting in patients with LEASO were analyzed using multivariate Cox regression. The relationship between preoperative CAR level and restenosis after stent placement was analyzed. Subject operating characteristic(ROC) curves of CAR were plotted to assess the predictive value of CAR for restenosis after stenting,and the results were expressed as area under the curve (AUC). Results: The aortoiliac calcification grade,number of stents,length of stents,C-reactive protein and CAR levels in restenosis group were higher than those in the patency group,and the serum albumin level was lower than that in the patency group(all P<0.05). And the results of multifactorial Cox regression analysis showed that higher pre-procedure CAR level and lower ABI value was an independent risk factor for in-stent restenosis. The AUC of the ROC curve for restenosis was 0.737(95%CI:0.617 to 0.856),the AUC of the ROC curve for 12-month restenosis was 0.709(95%CI:0.602 to 0.815), and the AUC of the ROC curve for 24-month restenosis was 0.702(95%CI:0.594 to 0.811). Conclusion: Higher pre-procedural CAR levels in patients with LEASO is risk factor for in-stent restenosis,and CAR has a predictive value for restenosis after lower extremity arterial stent dilatation and angioplasty.
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Affiliation(s)
- Y M Wang
- Department of Vascular Surgery,Nanjing Drum Tower Hospital Clinical College of Nanjing University of Traditional Chinese Medicine,Nanjing 210008,China
| | - M Q Zhang
- Department of Vascular Surgery,Nanjing Drum Tower Hospital,the Affiliated Hospital of Nanjing University Medical School,Nanjing 210008,China
| | - Z P Chen
- Department of Vascular Surgery,Nanjing Drum Tower Hospital,the Affiliated Hospital of Nanjing University Medical School,Nanjing 210008,China
| | - R Ji
- Department of Vascular Surgery,Nanjing Drum Tower Hospital Clinical College of Nanjing University of Traditional Chinese Medicine,Nanjing 210008,China
| | - J Cai
- Department of Vascular Surgery,Nanjing Drum Tower Hospital,the Affiliated Hospital of Nanjing University Medical School,Nanjing 210008,China
| | - T Qiao
- Department of Vascular Surgery,Nanjing Drum Tower Hospital Clinical College of Nanjing University of Traditional Chinese Medicine,Nanjing 210008,China
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Zhang MQ, Subinuer M, Chen ZP, Cai J, Liu C, Li XQ, Liu Z, Qiao T. [Clinical analysis of surgical treatment of infection after interventional operation for major iliac artery disease in 6 cases]. Zhonghua Wai Ke Za Zhi 2023; 61:1007-1013. [PMID: 37767668 DOI: 10.3760/cma.j.cn112139-20230228-00087] [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 explore the surgical treatment strategy of stent graft infection after interventional treatment of major iliac artery related diseases. Methods: Retrospective analysis was performed on the clinical data of 6 patients with secondary stent graft infection after interventional treatment for major iliac artery related diseases admitted to the Department of Vascular Surgery,Affiliated Drum Tower Hospital,Medical School of Nanjing University from November 2021 to August 2022.There were 5 males and 1 female,with a mean age of 64 years (range:49 to 79 years).The infection time was 53 to 3 165 days.All the 6 patients received surgical treatment,including 3 patients who underwent anatomic bypass grafting (axillary arterial-femoral artery bypass,femoral arterial-femoral artery bypass) using artificial vessels,and 3 patients who underwent in situ abdominal aorta reconstruction using bovine pericardium.The perioperative situation,postoperative infection and the occurrence of serious adverse events were recorded,and the safety of different treatment methods and materials was evaluated. Results: All patients successfully completed the operation and no death occurred during hospitalization.Intraoperative blood loss was 2 000~5 000 ml,and intraoperative blood transfusion was 1 600 to 5 350 ml.All the patients were followed up for 81 to 395 days after surgery,and the incision healed well,and no reinfection occurred.Postoperative gastrointestinal bleeding occurred in 1 patient,secondary surgery (retroperitoneal hematoma removal) was performed in 1 patient due to postoperative bleeding at the vascular anastomosis,both lower limb amputations were performed in 1 patient due to postoperative lower limb ischemia,and intermittent claudication occurred in 2 patients.All patients were alive at the last follow-up. Conclusion: For patients with aortic stent graft infection,when the infection is not serious and there is enough space to block the proximal and distal aorta,in situ aortic reconstruction is an effective treatment,and different materials can achieve satisfactory results in a short period of time.
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Affiliation(s)
- M Q Zhang
- Department of Vascular Surgery,Affiliated Drum Tower Hospital,Medical School of Nanjing University,Nanjing 210008,China
| | - Maimaitiaili Subinuer
- Department of Vascular Surgery,Affiliated Drum Tower Hospital,Medical School of Nanjing University,Nanjing 210008,China
| | - Z P Chen
- Department of Vascular Surgery,Affiliated Drum Tower Hospital,Medical School of Nanjing University,Nanjing 210008,China
| | - J Cai
- Department of Vascular Surgery,Affiliated Drum Tower Hospital,Medical School of Nanjing University,Nanjing 210008,China
| | - C Liu
- Department of Vascular Surgery,Affiliated Drum Tower Hospital,Medical School of Nanjing University,Nanjing 210008,China
| | - X Q Li
- Department of Vascular Surgery,Affiliated Drum Tower Hospital,Medical School of Nanjing University,Nanjing 210008,China
| | - Z Liu
- Department of Vascular Surgery,Affiliated Drum Tower Hospital,Medical School of Nanjing University,Nanjing 210008,China
| | - T Qiao
- Department of Vascular Surgery,Affiliated Drum Tower Hospital,Medical School of Nanjing University,Nanjing 210008,China
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Zhang MQ, Heirbaut S, Jing XP, Stefańska B, Vandaele L, De Neve N, Fievez V. Transition cow clusters with distinctive antioxidant ability and their relation to performance and metabolic status in early lactation. J Dairy Sci 2023; 106:5723-5739. [PMID: 37331874 DOI: 10.3168/jds.2022-22865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 02/17/2023] [Indexed: 06/20/2023]
Abstract
Metabolic and oxidative stress have been characterized as risk factors during the transition period from pregnancy to lactation. Although mutual relations between both types of stress have been suggested, they rarely have been studied concomitantly. For this, a total of 99 individual transition dairy cows (117 cases, 18 cows sampled during 2 consecutive lactations) were included in this experiment. Blood samples were taken at -7, 3, 6, 9, and 21 d relative to calving and concentrations of metabolic parameters (glucose, β-hydroxybutyric acid (BHBA), nonesterified fatty acids, insulin, insulin-like growth factor 1, and fructosamine) were determined. In the blood samples of d 21, biochemical profiles related to liver function and parameters related to oxidative status were determined. First, cases were allocated to 2 different BHBA groups (ketotic vs. nonketotic, N:n = 20:33) consisting of animals with an average postpartum BHBA concentration and at least 2 out of 4 postpartum sampling points exceeding 1.2 mmol/L or remaining below 0.8 mmol/L, respectively. Second, oxidative parameters [proportion of oxidized glutathione to total glutathione in red blood cells (%)], activity of glutathione peroxidase, and of superoxide dismutase, concentrations of malondialdehyde and oxygen radical absorbance capacity were used to perform a fuzzy C-means clustering. From this, 2 groups were obtained [i.e., lower antioxidant ability (LAA80%, n = 31) and higher antioxidant ability (HAA80%, n = 19)], with 80% referring to the cutoff value for cluster membership. Increased concentrations of malondialdehyde, decreased superoxide dismutase activity, and impaired oxygen radical absorbance capacity were observed in the ketotic group compared with the nonketotic group, and inversely, the LAA80% group showed increased concentrations of BHBA. In addition, the concentration of aspartate transaminase was higher in the LAA80% group compared with the HAA80% group. Both the ketotic and LAA80% groups showed lower dry matter intake. However, a lower milk yield was observed in the LAA80% group but not in the ketotic group. Only 1 out of 19 (5.3%) and 3 out of 31 (9.7%) cases from the HAA80% and LAA80% clusters belong to the ketotic and nonketotic group, respectively. These findings suggested that dairy cows vary in oxidative status at the beginning of the lactation, and fuzzy C-means clustering allows to classify observations with distinctive oxidative status. Dairy cows with higher antioxidant capacity in early lactation rarely develop ketosis.
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Affiliation(s)
- M Q Zhang
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, 9000 Gent, Belgium
| | - S Heirbaut
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, 9000 Gent, Belgium
| | - X P Jing
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, 9000 Gent, Belgium; State Key Laboratory of Grassland and Agro-Ecosystems, International Centre for Tibetan Plateau Ecosystem Management, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - B Stefańska
- Department of Grassland and Natural Landscape Sciences, Poznań University of Life Sciences, 60-632 Poznań, Poland
| | - L Vandaele
- Animal Sciences Unit, ILVO, 9090 Melle, Belgium
| | - N De Neve
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, 9000 Gent, Belgium
| | - V Fievez
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, 9000 Gent, Belgium.
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Ma YF, Ma YL, Chen X, Zhang PA, Zhang MQ. [Development in diagnostic criteria for allergic bronchopulmonary aspergillosis]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:624-631. [PMID: 37278181 DOI: 10.3760/cma.j.cn112147-20221124-00925] [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: 06/07/2023]
Abstract
Allergic bronchopulmonary aspergillosis (ABPA) is an allergic lung disease caused by the sensitization of Aspergillus fumigatus. In recent years, the research into ABPA has progressed, the testing methods have improved and the diagnostic criteria have been continuously updated. There is no gold standard for the diagnosis of the disease. The diagnostic criteria for ABPA include predisposing diseases, fungal-related immunoassay and pathological examination. Understanding the clinical significance of ABPA diagnostic criteria may help to prevent irreversible bronchopulmonary injury, improve respiratory function and improve the prognosis of patients.
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Affiliation(s)
- Y F Ma
- Peking University People's Hospital, Department of Respiratory and Critical Care Medicine,Beijing 100044, China
| | - Y L Ma
- Peking University People's Hospital, Department of Respiratory and Critical Care Medicine,Beijing 100044, China
| | - X Chen
- Peking University People's Hospital, Department of Respiratory and Critical Care Medicine,Beijing 100044, China
| | - P A Zhang
- Peking University People's Hospital, Department of Respiratory and Critical Care Medicine,Beijing 100044, China
| | - M Q Zhang
- Peking University People's Hospital, Department of Respiratory and Critical Care Medicine,Beijing 100044, China
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5
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Zhang W, Zhang MQ, Gong PH, Pan F, Sun KK, Bao J, Li YQ, Gao ZC. [Clinical features of IgG4-related lung disease]. Zhonghua Yi Xue Za Zhi 2023; 103:1417-1422. [PMID: 37150695 DOI: 10.3760/cma.j.cn112137-20221025-02226] [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: 05/09/2023]
Abstract
Objective: To explore the clinical features of IgG4-related lung disease. Methods: The clinical data of 60 patients diagnosed with IgG4-related lung disease in Peking University People's Hospital from February 2012 to May 2021 were retrospectively collected. Analysis was made to explore the features of clinical manifestation, laboratory, imaging, prognosis and other characteristics of the disease. Results: A total of 60 patients were included, with 40 males, age of (58.2±12.9) years, an age of onset of (57.1±13.2) years, and 31.7% (19 cases) of the patients had a history of allergic disease. 36.7% (22 cases) of the patients had respiratory symptoms during the disease. 94.6% (53/56) of patients had serum IgG4>1.35 g/L, 24.1% (14/58) of patients had increased eosinophils, 79.2% (38/48) of patients had increased IgE level, and 53.7% (29/54) of patients had decreased C3 or C4. Common imaging findings included nodular changes (38 cases, 63.3%), mediastinal and/or hilar lymphadenopathy (34 cases, 56.7%), and ground glass opacities (31 cases, 51.7%). Fifty-three cases (88.3%) showed two or more imaging changes. The pathological examination of the patient was mainly characterized by lymphoplasmacytic infiltration and fibrosis, with only one case of phlebitis obliterans. Compared with the asymptomatic group (38 cases), patients with respiratory symptoms (22 cases) showed higher level of serum total IgG and eosinophils (43.2 vs 17.8 g/L, 0.30×109/L vs 0.14×109/L, P<0.05), lower proportion of allergic diseases, and higher proportion of consolidation shadows on chest CT (P<0.05). There were no significant differences in serum IgG4, IgE, complement levels, and imaging outcomes after treatment between the two groups (P>0.05). Conclusions: The clinical manifestations of IgG4-related lung disease are atypical, and asymptomatic patients account for a high proportion. The imaging of the disease is highly heterogeneous, and patients are prone to show coexisted multiple imaging changes. The main clinical features and imaging outcomes of patients with and without respiratory symptoms are not significantly different.
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Affiliation(s)
- W Zhang
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - M Q Zhang
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - P H Gong
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - F Pan
- Department of Radiology, Peking University People's Hospital, Beijing100044, China
| | - K K Sun
- Department of Pathology, Peking University People's Hospital, Beijing 100044, China
| | - J Bao
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - Y Q Li
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
| | - Z C Gao
- Department of Respiratory and Critical Care Medicine, Peking University People's Hospital, Beijing 100044, China
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Zhang MQ, Qiao T. [Application of meandering mesenteric artery in vascular surgery]. Zhonghua Wai Ke Za Zhi 2023; 61:349-352. [PMID: 36822592 DOI: 10.3760/cma.j.cn112139-20221017-00445] [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: 02/25/2023]
Abstract
In recent years, the therapeutic concepts and surgical methods of the meandering mesenteric artery involved in atherosclerosis have been reported in the literature, and the importance of this lateral branch circulation in the field of vascular surgery has received more attention. With the improvement of imaging techniques, the discovery rate of this collateral circulation increased. In the presence of major iliac artery occlusion, the meandering mesenteric artery may serve as an important collateral circulation to relieve ischemia in the visceral or lower extremities. The meandering mesenteric artery may also lead to type Ⅱ internal leakage after endovascular repair, while the embolization of inferior mesenteric artery may be performed through the meandering mesenteric artery. The role of meandering mesenteric arteries in vascular surgery needs further study.
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Affiliation(s)
- M Q Zhang
- Department of Vascular Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - T Qiao
- Department of Vascular Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
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Jiang M, Yan S, Ren WC, Xing NN, Li HY, Zhang MQ, Liu MQ, Liu XB, Ma W. Genetic Diversity and Population Structure of Traditional Chinese Herb Radix bupleuri Resources Using Genome-Wide SNPs through Genotyping-by-Sequencing. RUSS J GENET+ 2022. [DOI: 10.1134/s1022795422120055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Wang XX, Zhang MQ, Cao ZG. [Periodontitis and systemic diseases: an evidence-based interrelationship and treatment strategies for periodontitis with systemic diseases]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:874-879. [PMID: 35970785 DOI: 10.3760/cma.j.cn112144-20220413-00178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Periodontitis is a common chronic infectious disease, so as to be the leading cause of tooth loss in adults. Numerous studies have confirmed the interrelationship between periodontitis and systemic diseases. However, evidence-based reviews reporting the interrelationship between them and treatment strategies for periodontitis with systemic diseases were still absent currently. Therefore, based on evidence-based medical researches in recent years, this article will summarize the interrelationship between periodontitis and systemic diseases, and briefly state the treatment strategies for periodontitis with systemic diseases.
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Affiliation(s)
- X X Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China
| | - M Q Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China
| | - Z G Cao
- Department of Periodontology, School of Stomatology, Wuhan University, Wuhan 430079, China
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Zhang MQ, Ma YL, Gao ZC. [Transient spontaneous regression of pulmonary lymphoma: two case report and review of the literature]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:902-908. [PMID: 34565118 DOI: 10.3760/cma.j.cn112147-20210307-00151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical features and pathogenesis of spontaneous regression of lymphoma involving the respiratory system. Methods: Two cases of pulmonary lymphoma which regressed spontaneously were reported. Literatures with"spontaneous regression, lymphoma""spontaneous remission, lymphoma"published before February 2020 were searched in Wanfang, CNKI and Pubmed database. And cases with respiratory system involvement of lymphoma which regressed spontaneously were analyzed. A total of 22 cases were finally retrieved. There were 6 males and 16 females, with an average age of (62.5±16.8) years. Results: Common symptoms included dyspnea, cough, expectoration, fever and weakness. Imaging examination showed that any parts in respiratory system could be involved. The proportion of invasive and indolent lymphomas was approximately similar. The time interval between diagnosis of lymphoma and first sign of spontaneous regression of the disease was from 2 weeks to 1 year. Spontaneous regression of the disease could sustain from 50 days to 60 months. Moreover, 78.6% of patients achieved complete remission in their courses of treatment, and some patients showed wax and wane phenomena. Conclusions: Spontaneous regression of lymphoma may occur in any part of the respiratory system. When a patient exhibits spontaneous regression of pulmonary lesions, lymphoma should be considered in the differential diagnoses. Pathology study is needed to achieve a definitive diagnosis. Misdiagnosis and delayed diagnosis related to empirical treatment of antibiotics and corticosteroid should be avoided.
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Affiliation(s)
- M Q Zhang
- Department of Respiratory and Critical Care Medicine, Peking Universiry People's Hospital, Beijing 100044, China
| | - Y L Ma
- Department of Respiratory and Critical Care Medicine, Peking Universiry People's Hospital, Beijing 100044, China
| | - Z C Gao
- Department of Respiratory and Critical Care Medicine, Peking Universiry People's Hospital, Beijing 100044, China
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Li MX, Rong MZ, Zhang MQ. Enhancement of mechanochemical self-blocking and self-healing of early minor damages in polymers through hyperbranched architecture. EXPRESS POLYM LETT 2021. [DOI: 10.3144/expresspolymlett.2021.62] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Zhang MQ, Wang XH, Chen YL, Zhao KL, Cai YQ, An CL, Lin MG, Mu XD. [Clinical features of 2019 novel coronavirus pneumonia in the early stage from a fever clinic in Beijing]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:215-218. [PMID: 32164091 DOI: 10.3760/cma.j.issn.1001-0939.2020.03.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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 summarize and analyze the clinical and imaging characteristics of patients with 2019 novel coronavirus pneumonia in the early stage in Beijing. Methods: A retrospective analysis of clinical and imaging data of 9 patients with 2019 novel coronavirus infection diagnosed in one fever clinicic in Beijing from January 18, 2020 to February 3, 2020. Results: 5 male and 4 female was included in those 9 patients, whose median age was 36 years, and the age range from 15 to 49 years. 8 of these patients had no underlying disease and one suffered from diabetes. 7 patients had a history of travel to Wuhan City or Hubei Province, and one patient was a medical staff. Two family clustered was found. The incubation period was 1 to 6 days. The clinical manifestations were fever in 8 cases (8/9) , dry cough in 5 cases (5/9) , pharyngalgia in 4 cases (4/9) , fatigue in 4 cases (4/9) , body soreness in 4 cases (4/9) , and blocked or watery nose in 1 case (1/9) . Six patients (6/9) had abnormal cell peripheral blood, of which 3 (3/9) had an increased monocyte count, 2 (2/9) had a reduced lymphocyte, and 1 (1/9) had an increased leukocyte count, while the 3 patients had normal cell blood routines. The median of CRP was 16.3 mg/L, including 5 patients with slightly elevated (5/9) , 4 patients with normal values (4/9) . the results of procalcitonin test were negative in5 patients. Three patients were examined by chest X-ray examination, one of which was normal, one case showed infiltrates of right upper lung, and another showed in right lower lung. All patients underwent chest HRCT. And 7 cases (7/9) showed multiple ground glass exudation, including 5 cases (5/7) involved bilateral lungs, 2 cases (2/7) involved unilateral lung, 3 cases (3/7) with patchy consolidation, and 2 cases (2/9) showed no abnormality. Conclusions: The patents with 2019 novel coronavirus pneumonia in this study generally have an epidemiological history. The clinical manifestations are fever and cough. Peripheral white blood cell counts were most normal And PCT were all negative. Chest HRCT manifested as multiple ground-glass opacities with partly consolidation. Some patients had normal chest radiographs but HRCT showed pneumonia. Some patients had no pneumonia on chest HRCT.
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Affiliation(s)
- M Q Zhang
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
| | - X H Wang
- Department of kidney surgery, Peking University First Hospital, Beijing 100034, China
| | - Y L Chen
- Department of kidney surgery, Peking University First Hospital, Beijing 100034, China
| | - K L Zhao
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
| | - Y Q Cai
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
| | - C L An
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
| | - M G Lin
- Department of kidney surgery, Peking University First Hospital, Beijing 100034, China
| | - X D Mu
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
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Zhang MQ, Wang XH, Chen YL, Zhao KL, Cai YQ, An CL, Lin MG, Mu XD. [Clinical features of 2019 novel coronavirus pneumonia in the early stage from a fever clinic in Beijing]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:E013. [PMID: 32061066 DOI: 10.3760/cma.j.issn.1001-0939.2020.0013] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Objective: To summarize and analyze the clinical and imaging characteristics of patients with 2019 novel coronavirus pneumonia in the early stage in Beijing. Methods: A retrospective analysis of clinical and imaging data of 9 patients with 2019 novel coronavirus infection diagnosed in one fever clinicic in Beijing from January 18, 2020 to February 3, 2020. Results: 5 male and 4 female was included in those 9 patients, whose median age was 36 years, and the age range from 15 to 49 years. 8 of these patients had no underlying disease and one suffered from diabetes. 7 patients had a history of travel to Wuhan City or Hubei Province, and one patient was a medical staff. Two family clustered was found. The incubation period was 1 to 6 days. The clinical manifestations were fever in 8 cases (8/9) , dry cough in 5 cases (5/9) , pharyngalgia in 4 cases (4/9) , fatigue in 4 cases (4/9) , body soreness in 4 cases (4/9) , and blocked or watery nose in 1 case (1/9) . Six patients (6/9) had abnormal cell peripheral blood, of which 3 (3/9) had an increased monocyte count, 2 (2/9) had a reduced lymphocyte , and 1 (1/9) had an increased leukocyte count, while the 3 patients had normal cell blood routines. The median of CRP was 16.3 mg/L, including 5 patients with slightly elevated (5/9) , 4 patients with normal values (4/9) . the results of procalcitonin test were negative in5 patients. Three patients were examined by chest X-ray examination, one of which was normal, one case showed infiltrates of right upper lung, and another showed in right lower lung. All patients underwent chest HRCT. And 7 cases (7/9) showed multiple ground glass exudation, including 5 cases (5/7) involved bilateral lungs, 2 cases (2/7) involved unilateral lung, 3 cases (3/7) with patchy consolidation, and 2 cases (2/9) showed no abnormality. Conclusions: The patents with 2019 novel coronavirus pneumonia in this study generally have an epidemiological history. The clinical manifestations are fever and cough. Peripheral white blood cell counts were most normal And PCT were all negative. Chest HRCT manifested as multiple ground-glass opacities with partly consolidation. Some patients had normal chest radiographs but HRCT showed pneumonia. Some patients had no pneumonia on chest HRCT.
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Affiliation(s)
- M Q Zhang
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
| | - X H Wang
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
| | - Y L Chen
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
| | - K L Zhao
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
| | - Y Q Cai
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
| | - C L An
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
| | - M G Lin
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
| | - X D Mu
- Department of Respiratory Medicine, Peking University First Hospital, Beijing 100034, China
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Song YX, Xu WM, Rong MZ, Zhang MQ. A sunlight self-healable fibrous flexible pressure sensor based on electrically conductive composite wool yarns. EXPRESS POLYM LETT 2020. [DOI: 10.3144/expresspolymlett.2020.88] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Fan LF, Huang YN, Rong MZ, Zhang MQ. A simple and universal strategy for preparing external stress-free two-way shape memory polymers by making use of the chemical crosslinkages derived from peroxide initiator. EXPRESS POLYM LETT 2020. [DOI: 10.3144/expresspolymlett.2020.26] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Guo Y, Hu M, Liu LL, Yao W, Zhang MQ. Activities of key enzymes in the C4 pathway and anatomy of sugarcane infected by Leifsonia xyli subsp. xyli. J Appl Microbiol 2019; 127:1790-1800. [PMID: 31509316 DOI: 10.1111/jam.14444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 03/03/2019] [Revised: 08/30/2019] [Accepted: 09/04/2019] [Indexed: 11/28/2022]
Abstract
AIMS Ratoon stunting disease caused by Leifsonia xyli subsp. xyli (Lxx) is a bacterial disease that has plagued sugarcane-planting countries for a long time. This study mainly analysed Lxx localization and its effects on sugarcane leaf. METHODS AND RESULTS Badila were inocultated by bacteria of Lxx. It was noted that the number of Lxx cells were rapidly enriched in sugarcane leaves from the 150th to the 210th days of post inoculation (dpi). Lxx infection disrupted the integrity of vascular bundle sheath cells (BSC) in the 'Kranz anatomy' of leaves, resulting in irregular accumulation of starch in vascular BSC of leaves. In situ PCR showed that the Lxx localized in the xylem vessels, mesophyll cell (MC) and BSC as described before in sugarcane leaf, a new niche within the host tissues in the phloem of sugarcane stem. The gene expression and activities of phosphoenolpyruvate carboxylase (PEPC), pyruvate, orthophosphate dikinase (PPDK) and NADP-malic enzyme (NADP-ME) enzymes were lower in Lxx-inoculated sugarcane plants as compared to the MI group. CONCLUSION Lxx infection not only disrupted the structure of vascular BSC in the C4 'Kranz anatomy' of sugarcane leaves, but also affected the activities and gene expression of the key enzymes PEPC, PPDK and NADP-ME in the C4 cycle of sugarcane suggesting a reduction in CO2 fixation. SIGNIFICANCE AND IMPACT OF THE STUDY The effect of Leifsonia xyli subsp. xyli (Lxx) infection on the photosynthetic physiology of sugarcane is currently limited to the evaluation of photosynthetic parameters. This study assessed the impact of Lxx infection on the mechanism of C4 cycle CO2 fixation and to accompanying plant anatomy.
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Affiliation(s)
- Y Guo
- Fujian Key Laboratory of Subtropical Plant Physiology and Biochemistry, Fujian Institute of Subtropical Botany, Xiamen, Fujian, China
| | - M Hu
- Fujian Key Laboratory of Subtropical Plant Physiology and Biochemistry, Fujian Institute of Subtropical Botany, Xiamen, Fujian, China
| | - L L Liu
- Fujian Key Laboratory of Subtropical Plant Physiology and Biochemistry, Fujian Institute of Subtropical Botany, Xiamen, Fujian, China
| | - W Yao
- State Key Lab for Conservation and Utilization of Subtropical Agric-Biological Resources, Guangxi University, Nanning, China
| | - M Q Zhang
- State Key Lab for Conservation and Utilization of Subtropical Agric-Biological Resources, Guangxi University, Nanning, China
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Zhang MQ. Strengthening of crosslinked polymer by solid-state drawing. EXPRESS POLYM LETT 2018. [DOI: 10.3144/expresspolymlett.2018.57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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18
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Wu WC, Wang W, Song HM, Ma MS, Tang XY, Jian S, Zhang MQ, Xiao J, Qiu ZQ, Liu YL. [A major histocompatibility complex class Ⅱ deficiency case report and literature review]. Zhonghua Er Ke Za Zhi 2017; 54:614-8. [PMID: 27510876 DOI: 10.3760/cma.j.issn.0578-1310.2016.08.013] [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 summarize and report the clinical characteristics and laboratory results of a case and those reported in literature with MHC class Ⅱ deficiency. METHOD The clinical features, laboratory results and gene mutation analysis of an infant with MHC class Ⅱ deficiency, who was diagnosed and treated in Peking Union Medical College Hospital since December 2013, were retrospectively analyzed."Major histocompatibility complex class Ⅱ deficiency"or"bare lymphocyte syndrome"were used as keywords in order to retrieve reports from CNKI (from its establishment to October 2015) and Wanfang Database (from its establishment to October 2015), PubMed Database (from its establishment to October 2015) was searched. The characteristics, diagnosis, treatment and prognosis were summarized by reviewing related articles. RESULT The patient was a 8-month-old boy. Since the fourth month of life, he started to have repeated fever, susceptible to a variety of pathogens, immune hemolytic anemia, severe malnutrition, and finally diagnosed as MHC class Ⅱ deficiency disease when he was 20-month-old.No related reports were retrieved from CNKI and Wanfang database, there were 20 articles and 179 patients were reported worldwide in the past 10 years. Patients exhibit an extreme vulnerability to infections(resptratory infection(82%, 146/178), inpection of gastroin testinal(76%, 135/178)). The common laboratory examinations showed hypogammaglobulinemia, CD4(+) lymphopenia(93%, 107/115) etc. Diagnosis relies on the flow-cytometric analysis and genetic analysis. CONCLUSION It is considered necessary for patients with young onset age, manifestation of clinically opportunistic infection as immune deficient disease, including the MHC class Ⅱ deficiency disease, especially long-term diarrhea, poor development and cryptosporidium infection. This disease could coexist with autoimmune disorders.
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Affiliation(s)
- W C Wu
- Department of Pediatrics, Chinese Academy of Medical Sciences, Peking Union Medical College Hospital, Beijing 100730, China
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Ye XJ, Zhu Y, Yuan YC, Song YX, Yang GC, Rong MZ, Zhang MQ. Improvement of fatigue resistance of epoxy composite with microencapsulated epoxy-SbF5 self-healing system. EXPRESS POLYM LETT 2017. [DOI: 10.3144/expresspolymlett.2017.82] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Huang YF, Zhang MQ, Rong MZ, Ruan WH. To immobilize polyethylene glycol-borate ester/lithium fluoride in graphene oxide/poly(vinyl alcohol) for synthesizing new polymer electrolyte membrane of lithium-ion batteries. EXPRESS POLYM LETT 2017. [DOI: 10.3144/expresspolymlett.2017.5] [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: 11/24/2022] Open
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Yang CY, Powell CA, Duan YP, Zhang MQ. Characterization and Antibacterial Activity of Oil-In-Water Nano-Emulsion Formulation Against Candidatus Liberibacter asiaticus. Plant Dis 2016; 100:2448-2454. [PMID: 30686169 DOI: 10.1094/pdis-05-16-0600-re] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nano-emulsion is a promising delivery system for increasing pesticide use and enhancing the therapeutic efficiency against pathogens. The pathogen Candidatus Liberibacter asiaticus (Las) that causes destructive citrus huanglongbing (HLB) resides in citrus phloem, which makes it difficult to treat with chemicals. Based on various physiochemical characteristics of oils, surfactants, and organic solvents, an oil-in-water (O/W) nano-emulsion formulation was developed and optimized to combat citrus HLB. The nano-emulsion was formulated through a spontaneous emulsification method for efficient delivery of ampicillin into the citrus phloem using bark application. The nano-emulsion that was prepared from Cremophor EL (viscous oil), acetone (water miscibility organic solvent), and Span 80/Tween 80 (surfactant) formed a small droplet size (17.33 ± 0.52 nm) and exhibited an improved absorption rate. Peak concentration was detected at 2 days posttreatment and the maximum concentration (Cmax) and relative bioavailability (RBA) of ampicillin in HLB-affected citrus were 71.86 ± 35.38 ng/g and 267.25% ± 44.1%, respectively. The peak concentration of Amp appeared at 6 days posttreatment in the citrus trees that were treated with Amp alone and their Cmax and RBA were 56.44 ± 32.59 ng/g and 100%, respectively. The same nano-emulsion was used to deliver five different antimicrobials to control citrus HLB through bark application. We found that the droplet size of the antimicrobials in the nano-emulsion was significantly reduced and the nano-emulsion also enhanced the therapeutic efficiency of validoxylamine A alone and in combination with actidione as well as sulfadimoethoxine sodium against Las. Therefore, this study provides an efficient bark application nano-emulsion formulation for citrus HLB control.
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Affiliation(s)
- C Y Yang
- State Key Lab for Conversation and Utilization Subtropical Aro-Biological Resources, Guangxi University, Nanning, Guangxi, 530005, China, IRREC-IFAS, University of Florida, Fort Pierce, FL 34945, and Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - C A Powell
- IRREC-IFAS, University of Florida, Fort Pierce, FL 34945
| | - Y P Duan
- USHRL, USDA-ARS, Fort Pierce, FL 34945
| | - M Q Zhang
- State Key Lab for Conversation and Utilization Subtropical Aro-Biological Resources, Guangxi University, Nanning, Guangxi, 530005, China, IRREC-IFAS, University of Florida, Fort Pierce, FL 34945, and USHRL, USDA-ARS, Fort Pierce, FL 34945
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Huang L, Yin ZJ, Feng YF, Zhang XD, Wu T, Ding YY, Ye PF, Fu K, Zhang MQ. Identification and differential expression of microRNAs in the ovaries of pigs (Sus scrofa) with high and low litter sizes. Anim Genet 2016; 47:543-51. [PMID: 27435155 DOI: 10.1111/age.12452] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2016] [Indexed: 12/01/2022]
Abstract
Litter size affects profitability in the swine industry. Mammalian ovaries play important roles during reproduction, including ovulation and hormone secretion, which are tightly regulated by specific microRNAs (miRNAs). In this study, we investigated the effects of specific miRNAs on porcine litter size. We compared the ovarian miRNAs of Yorkshire pigs with high (YH) and low (YL) litter sizes using Solexa sequencing technology. We identified 327 and 320 miRNAs in the ovaries of YH and YL pigs respectively. A total of 297 miRNAs were co-expressed; 30 and 23 miRNAs respectively were specifically expressed in the two libraries. A total of 83 novel miRNAs were predicted; 37 specific miRNAs were obtained, of which 21 miRNAs were upregulated and 16 miRNAs were downregulated in YH compared with YL. Additionally, 19 628 and 19 250 target genes were predicted in the two libraries respectively. The results revealed that specific miRNAs (i.e., miR-224, miR-99a, let-7c, miR-181c, miR-214 and miR-21) may affect porcine litter size. The results of this study will help in gaining understanding of the role of miRNAs in porcine litter size regulation.
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Affiliation(s)
- L Huang
- Anhui Provincial Laboratory of Local Animal Genetic Resource Conservation and Bio-Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R. China
| | - Z J Yin
- Anhui Provincial Laboratory of Local Animal Genetic Resource Conservation and Bio-Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R. China
| | - Y F Feng
- Anhui Provincial Laboratory of Local Animal Genetic Resource Conservation and Bio-Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R. China
| | - X D Zhang
- Anhui Provincial Laboratory of Local Animal Genetic Resource Conservation and Bio-Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R. China.
| | - T Wu
- Anhui Provincial Laboratory of Local Animal Genetic Resource Conservation and Bio-Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R. China
| | - Y Y Ding
- Anhui Provincial Laboratory of Local Animal Genetic Resource Conservation and Bio-Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R. China
| | - P F Ye
- Anhui Provincial Laboratory of Local Animal Genetic Resource Conservation and Bio-Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R. China
| | - K Fu
- Anhui Provincial Laboratory of Local Animal Genetic Resource Conservation and Bio-Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R. China
| | - M Q Zhang
- Anhui Provincial Laboratory of Local Animal Genetic Resource Conservation and Bio-Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R. China
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Zhang MQ, Chen H, Zhai CL, Tu JF, Shen Y, Pang LX, Xu QR. [Follistatin-like 1-engineered mesenchymal stem cells prevent myocardial ischemic reperfusion injury]. Zhonghua Yi Xue Za Zhi 2016; 96:2017-22. [PMID: 27470962 DOI: 10.3760/cma.j.issn.0376-2491.2016.25.013] [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 investigate the role of follistatin-like protein 1 (FSTL1) on bone marrow mesenchymal stem cells (BM-MSCs)-mediated cardioprotection during myocardial ischemia/reperfusion injury. METHODS Rat bone marrow mesenchymal stem cells were isolated by whole bone marrow adherence method in vitro. A total of 60 Wistar rats were randomly divided into 4 groups: control group, ischemic /reperfusion injury (IRI) group, ischemia/reperfusion injury group treated with natural BM-MSCs (IRI+ MSC group), ischemia/reperfusion injury group treated with BM-MSCs which did not contain FSTL1 (IRI+ MSC FSTL1 siRNA group). Survival analysis was used to analyze survival time of rats, besides, expression of FSTL1 was detected by Western blotting. Myocardial pathological changes were detected by Hematoxylin and Eosin (HE) staining. Terminal-deoxynucleoitidyl transferase mediated nick end labeling (TUNEL) and enzyme-linked immunosorbent assay (ELISA) were used to determine the associated biomarkers and apoptosis 7 days after operation. RESULTS Compared with IRI group, rats in IRI+ MSC group had a higher survival rate and lived longer. Meanwhile, IRI+ MSC group had higher FSTL1 expression in blood and myocardial tissues than IRI group. Control group showed significantly lower apoptosis rate of myocardial cells[(1.4±0.1)% vs (29.8±4.5)%, P<0.05], less histological changes and infarction areas (0 vs 24.48±4.27, P<0.05) than IRI group. Compared with IRI group, IRI+ MSC group had an improvement of apoptosis rate[(4.2±0.3)% vs (29.8±4.5)%, P<0.05], less histological injury and infarction areas (15.12±3.82 vs 24.48±4.27, P<0.01). IRI+ MSC group had lower expression of LDH, MDA, CK and higher expression of SOD than IRI group (P<0.05). However, IRI+ MSC FSTL1 siRNA group showed weaker protection of myocardial cells than IRI+ MSC group after knockdown of FSTL1 (P<0.05). CONCLUSION FSTL1, which was secreted by BM-MSCs, plays a protective role in myocardial IRI.
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Affiliation(s)
- M Q Zhang
- Department of Emergency, Zhejiang Provincial People's Hospital, Hangzhou 310014, China
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Zhang MQ, Guo Y, Powell CA, Doud MS, Yang CY, Zhou H, Duan YP. Zinc treatment increases the titre of 'Candidatus Liberibacter asiaticus' in huanglongbing-affected citrus plants while affecting the bacterial microbiomes. J Appl Microbiol 2016; 120:1616-28. [PMID: 26909469 DOI: 10.1111/jam.13102] [Citation(s) in RCA: 20] [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: 11/23/2015] [Revised: 01/28/2016] [Accepted: 02/05/2016] [Indexed: 12/26/2022]
Abstract
AIMS Huanglongbing (HLB)-affected citrus often display zinc deficiency symptoms. In this study, supplemental zinc was applied to citrus to determine its effect on Candidatus Liberibacter asiaticus (Las) titre, HLB symptoms, and leaf microbiome. METHODS AND RESULTS HLB-affected citrus were treated with various amounts of zinc. The treatments promoted Las growth and affected microbiomes in citrus leaves. Phylochip(™) -based results indicated that 5475 of over 50 000 known Operational Taxonomic Units (OTUs) in 52 phyla were detected in the midribs of HLB-affected citrus, of which Proteobacteria was the most abundant, followed by Firmicutes and Actinobacteria. In comparison, the microbiomes of zinc-treated diseased plants had overall more OTUs with higher amounts of Proteobacteria, but decreased percentages of Firmicutes and Actinobacteria. In addition, more OTUs of siderophore-producing bacteria were present. Only zinc-sensitive Staphylococcaceae had higher OTU's in the diseased plants without zinc treatments. CONCLUSIONS Although HLB-affected citrus appear zinc deficient, zinc amendments increased the pathogen levels and shifted the microbiome. SIGNIFICANCE AND IMPACT OF THE STUDY HLB is currently the most devastating disease of citrus worldwide. Zinc is often applied to HLB-affected citrus due to zinc deficiency symptoms. This study provided new insights into the potential effects of zinc on HLB and the microbial ecology of citrus.
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Affiliation(s)
- M Q Zhang
- State Key Lab for Conservation and Utilization of Subtropical Agro-biological Resources, Guangxi University, Nanning, China.,IRREC-IFAS, University of Florida, Fort Pierce, FL, USA.,USHRL, USDA-ARS, Fort Pierce, FL, USA
| | - Y Guo
- IRREC-IFAS, University of Florida, Fort Pierce, FL, USA
| | - C A Powell
- IRREC-IFAS, University of Florida, Fort Pierce, FL, USA
| | - M S Doud
- USHRL, USDA-ARS, Fort Pierce, FL, USA
| | - C Y Yang
- IRREC-IFAS, University of Florida, Fort Pierce, FL, USA
| | - H Zhou
- State Key Lab for Conservation and Utilization of Subtropical Agro-biological Resources, Guangxi University, Nanning, China
| | - Y P Duan
- USHRL, USDA-ARS, Fort Pierce, FL, USA
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Zhang MQ, Ji MH, Zhao QS, Jia M, Qiu LL, Yang JJ, Peng YG, Yang JJ, Martynyuk AE. Neurobehavioural abnormalities induced by repeated exposure of neonatal rats to sevoflurane can be aggravated by social isolation and enrichment deprivation initiated after exposure to the anaesthetic. Br J Anaesth 2016; 115:752-60. [PMID: 26475803 DOI: 10.1093/bja/aev339] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND We tested the hypothesis that developmental effects of repeated neonatal exposure to sevoflurane in rats are exacerbated by stressful experiences received later in life. METHODS Sprague-Dawley male rats received sequential exposures to 3% sevoflurane for two h on postnatal days (P) six, seven, and eight. After weaning at P21, rats were housed either in pairs in an enriched environment (EE) or singly in an enrichment-deprived environment (an adverse environment, AE). The hippocampal concentrations of brain-derived neurotrophic factor (BDNF), and synaptic markers were assessed at P8 and P53. The dentate gyrus neural progenitor proliferation was evaluated at P11 and P53 after administration of bromodeoyuridine (BrdU) at P8 to P10 and at P22 to P27, respectively. Neurobehavioural evaluations were performed at P49 to P53. RESULTS Repeated sevoflurane exposure acutely reduced concentrations of BDNF, synaptic markers and neural progenitor proliferation. The sevoflurane group housed in the AE conditions (sevoflurane+AE) had decreased concentrations of BDNF and synaptic markers, and survival of new granule cells and impaired cognitive function compared with the control+AE, control+EE, and sevoflurane+EE groups. The neurobehavioural parameters in the sevoflurane+EE and control+EE groups were similar. CONCLUSIONS Neurocognitive abnormalities induced by repeated neonatal exposure to sevoflurane can be aggravated by stressful conditions such as social isolation and enrichment deprivation.
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Affiliation(s)
- M Q Zhang
- Department of Anaesthesiology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - M H Ji
- Department of Anaesthesiology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Q S Zhao
- Department of Anaesthesiology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - M Jia
- Department of Anaesthesiology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - L L Qiu
- Department of Anaesthesiology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - J J Yang
- Department of Anaesthesiology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China Jiangsu Province Key Laboratory of Anaesthesiology, Xuzhou Medical College, Xuzhou, China Jiangsu Province Key Laboratory of Anaesthesia and Analgesia Application Technology, Xuzhou, China
| | - Y G Peng
- Department of Anaesthesiology, University of Florida College of Medicine, Gainesville, FL, USA
| | - J J Yang
- Department of Anaesthesiology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China Jiangsu Province Key Laboratory of Anaesthesiology, Xuzhou Medical College, Xuzhou, China Jiangsu Province Key Laboratory of Anaesthesia and Analgesia Application Technology, Xuzhou, China
| | - A E Martynyuk
- Department of Anaesthesiology, University of Florida College of Medicine, Gainesville, FL, USA The McKnight Brain Institute, University of Florida College of Medicine, Gainesville, FL, USA
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Xia NN, Rong MZ, Zhang MQ, Kuo SW. Stress intensification – an abnormal phenomenon observed during stress relaxation of dynamic coordination polymer. EXPRESS POLYM LETT 2016. [DOI: 10.3144/expresspolymlett.2016.68] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Guo YC, Wang H, Wu HP, Zhang MQ. Multi-modulus algorithm based on global artificial fish swarm intelligent optimization of DNA encoding sequences. Genet Mol Res 2015; 14:17511-8. [PMID: 26782395 DOI: 10.4238/2015.december.21.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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
Aimed to address the defects of the large mean square error (MSE), and the slow convergence speed in equalizing the multi-modulus signals of the constant modulus algorithm (CMA), a multi-modulus algorithm (MMA) based on global artificial fish swarm (GAFS) intelligent optimization of DNA encoding sequences (GAFS-DNA-MMA) was proposed. To improve the convergence rate and reduce the MSE, this proposed algorithm adopted an encoding method based on DNA nucleotide chains to provide a possible solution to the problem. Furthermore, the GAFS algorithm, with its fast convergence and global search ability, was used to find the best sequence. The real and imaginary parts of the initial optimal weight vector of MMA were obtained through DNA coding of the best sequence. The simulation results show that the proposed algorithm has a faster convergence speed and smaller MSE in comparison with the CMA, the MMA, and the AFS-DNA-MMA.
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Affiliation(s)
- Y C Guo
- Jiangsu Key Laboratory of Meteorological Observation and Information Processing, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, China.,Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology, Nanjing, China
| | - H Wang
- Jiangsu Key Laboratory of Meteorological Observation and Information Processing, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, China
| | - H P Wu
- Jiangsu Key Laboratory of Meteorological Observation and Information Processing, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, China
| | - M Q Zhang
- Jiangsu Key Laboratory of Meteorological Observation and Information Processing, Nanjing University of Information Science & Technology, Nanjing, Jiangsu, China
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Ding YY, Zhang W, Zhang MQ, Fu K, Chen WP, Ding C, He XL, Zhang XD, Huang L, Yin ZJ. Functional and association studies of the cholesteryl ester transfer protein (CETP) gene in a Wannan Black pig model. Anim Genet 2015; 46:702-6. [PMID: 26477338 DOI: 10.1111/age.12370] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2015] [Indexed: 10/22/2022]
Abstract
Some polymorphisms of the human CETP gene are causally and significantly associated with serum lipids levels; however, the information regarding this gene in pigs is sparse. To evaluate the effects of CETP on blood lipid traits and fat deposition in pig, porcine CETP tissue expression patterns were observed by quantitative real-time polymerase chain reaction (qPCR) first. High expression was detected in liver, spleen, gluteus medius (GM) muscle and backfat. A de novo polymorphism (AF333037:g.795C>T) in the intron 1 region of porcine CETP was identified. This polymorphism was further genotyped by direct sequencing of the PCR products of 390 Wannan Black pigs, a Chinese native breed population. Association analyses at 45 and 300 days of age revealed highly significant associations between CETP genotypes and serum lipid traits. Furthermore, this polymorphism was proved to be associated with differences in liver CETP mRNA levels: pigs at 300 days of age with the TT genotype had higher levels than did those with other genotypes (P = 0.021). Additionally, analysis at 300 days of age showed that GM CETP mRNA expression correlated positively with serum lipids levels as well as with carcass backfat thickness and intramuscular fat content in GM. These results indicate that CETP is involved in serum, adipose and muscle lipid metabolism in pigs. The mechanisms underlying such relationships and their functional implications are worthy of further research.
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Affiliation(s)
- Y Y Ding
- Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, Department of Animal Science, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R., China
| | - W Zhang
- Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, Department of Animal Science, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R., China
| | - M Q Zhang
- Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, Department of Animal Science, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R., China
| | - K Fu
- Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, Department of Animal Science, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R., China
| | - W P Chen
- Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, Department of Animal Science, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R., China
| | - C Ding
- Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, Department of Animal Science, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R., China
| | - X L He
- Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, Department of Animal Science, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R., China
| | - X D Zhang
- Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, Department of Animal Science, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R., China
| | - L Huang
- Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, Department of Animal Science, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R., China
| | - Z J Yin
- Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Bio-Breeding, Department of Animal Science, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui, 230036, P. R., China
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Zhang MQ, Ma CA, Lv WW, Huang YH, Wang DL, Zhao YL. Molecular cloning, characterization and expression analysis of a Doublesex gene from Daphnia carinata (Crustacea: Cladocera) during different reproductive stages. Genet Mol Res 2015; 14:5930-842. [PMID: 26125792 DOI: 10.4238/2015.june.1.10] [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
To better understand the reproductive transformation mechanism of Daphnia carinata, a Doublesex (Dsx) gene was cloned based on rapid amplification of cDNA ends (RACE), and was designated DapcaDsx2. Next, we compared similarities and assumed homology based on deduced amino acid sequences. It showed 97.52, 87.94, and 85.11% identity to orthologous genes in D. magna, D. pulex, and D. galeata respectively. Phylogenetic analysis revealed that DapcaDsx2 clustered in the same class, and was evolutionarily more distant to sequences from other species. qRT-PCR showed that DapcaDsx2 was most abundantly expressed during sexual reproduction (P < 0.05). Using digoxigenin-labeled RNA probes, we studied DapcaDsx2 expression in parthenogenetic and sexual females by whole-mount in situ hybridization. The results revealed that DapcaDsx2 was mainly expressed in the second antennae and several sites of the ventral carapace, whereas higher expression levels were found in sexual than in parthenogenetic females. This suggests that the DapcaDsx2 gene is involved in switching modes of reproduction and in sexual differentiation.
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Affiliation(s)
- M Q Zhang
- School of Life Science, East China Normal University, Shanghai, China
| | - C A Ma
- School of Life Science, East China Normal University, Shanghai, China
| | - W W Lv
- School of Life Science, East China Normal University, Shanghai, China
| | - Y H Huang
- School of Life Science, East China Normal University, Shanghai, China
| | - D L Wang
- School of Marine Sciences, Ningbo University, Ningbo, China
| | - Y L Zhao
- School of Life Science, East China Normal University, Shanghai, China
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Ye XJ, Zhu Y, Yuan YC, Song YX, Yang GC, Rong MZ, Zhang MQ. Fatigue life extension of epoxy materials using ultrafast epoxy-SbF5 healing system introduced by manual infiltration. EXPRESS POLYM LETT 2015. [DOI: 10.3144/expresspolymlett.2015.19] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Xu WJ, Chen LG, Chen X, Liu YS, Zheng TH, Song JJ, Xu W, Li P, Zhang MQ, Xiao CX, Guleng B, Ren JL. Silencing ECHS1 attenuates the proliferation and induces the autophagy of hepatocellular carcinoma via impairing cell metabolism and activating AMPK. Neoplasma 2015; 62:872-80. [PMID: 26458321 DOI: 10.4149/neo_2015_106] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Hepatocellular carcinoma (HCC) is among the most common cancers in the world with a low survival rate. Our previous study showed Short chain enoyl-CoA hydratase (ECHS1) could bind to HBsAg (HBs) and that ECHS1's localization in mitochondria induced HepG2 cell apoptosis. However, the role of the ECHS1 in energy metabolism and autophagy during hepatocellular carcinoma development remains undefined. We aimed to determine what ECHS1 does to energy metabolism and its effects on HCC progression. We performed CCK-8, EdU assays in hepatocellular carcinoma cell lines (HepG2 and HuH7) with stable ECHS1 knock-down. ATP and NADP+/NADPH levels were measured using an colorimetric assay. Our data demonstrated that ECHS1 silencing inhibited cell proliferation and induced autophagy. ECHS1 knockdown did not increase fatty acid synthesis, but decreased cellular ATP. This resulted in AMP-activated protein kinase (AMPK) activation and induced HCC cell autophagy. Our results showed that silencing ECHS1 to attenuate proliferation and induce autophagy may make it a novel cancer therapy target.
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Wang JH, Wang L, Cheng HR, Cheng WZ, Rao GP, Cao G, Zhang MQ. First Report of Myrothecium roridum Causing Leaf Spot of Anubias barteri var. nana in Mainland China. Plant Dis 2014; 98:1444. [PMID: 30703966 DOI: 10.1094/pdis-07-14-0709-pdn] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Anubias barteri var. nana (belonging to family Araceae) is one of the most popular ornamental plants for aquaria. It has slow growth and small attractive ornamental leaves. It originated from West Africa, was first described in 1860 by Heinrich Wilhelm Schott (1), and is now commercially planted widely in southern China. A new disease of A. barteri var. nana was observed on leaves. Approximately 30% of the plants in an ornamental nursery in Baiyun district, Gaungzhou, China (113°22'45.15″ E, 23°23'41.15″ N) in July 2013 were found to be infected. The pathogen caused necrotic spots that progressed to form holes on leaves of the infected plants, negatively affecting their ornamental market value. Eventually the diseased plant died. White fungal fruiting bodies and black sporodochia were observed on the surfaces of the symptomatic leaves. A single-spore isolate (myr5) was obtained from the concentric lesions and cultured on potato dextrose agar (PDA). The floccose fungal colonies were white to buff, and black conidiomata were often visible on the surface after 25 days of incubation. The conidia had rounded ends and the average size of conidia was 5.98 ± 0.15 × 2.24 ± 0.08 μm. The rDNA internal transcribed spacer (ITS) region of isolate myr5 was amplified by PCR using ITS1 and ITS4 primer pairs. The amplified product was sequenced and deposited in GenBank (Accession No. KJ572115) and showed 99% identity to Myrothecium roridum isolates BBA 71015 (AJ302001) and BBA 67679 (AJ301995) (unpublished), and 100% identity to the isolate myr2-2 from Dieffenbachia picta 'Camilla' in Taiwan (2). On the basis of morphological and molecular characterization, the fungus causing leaf spot on A. barteri var. nana plants was identified as M. roridum Tode ex Fr (2,3). To confirm the etiology of the disease, Koch's postulates was performed in a greenhouse (28 ± 2°C) using 3-day-old cultures of isolate myr5 and fungal spore suspensions of 1 × 105 conidia ml-1 containing 0.05% of Tween 20. Sixteen healthy leaves, two each from eight plants, were infiltrated on two different parts close to the midribs with 100 μl of the fungal spore using needleless syringes. Water infiltration was used as the control treatment. Water-soaked brown lesions appeared on leaves 7 days after inoculation, followed by the development of dark concentric rings within the necrotic areas on the surface of the inoculated leaves after 15 days of incubation. These symptoms were similar to those in the naturally infected aquarium plants. No symptoms were observed on any of the water micro-infiltrated plants. The fungus was re-isolated from the inoculated plants, but not from control plants. To our knowledge, this is the first report of Myrothecium leaf spot caused by M. roridum on A. barteri var. nana in mainland China. References: (1) W. Crusio. Primitiae Africanae XII 79 (14):1-48, 1979. (2) C. F. Hong et al. Plant Dis. 97:1253, 2013. (3) M. Tulloch. Mycol. Pap. 130:1-42, 1972.
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Affiliation(s)
- J H Wang
- Guangxi University, Nanning, Guangxi 530005, China, and Crop Research Institute, Guangdong Academy of Agriculture Sciences, Guangzhou 510640, China
| | - L Wang
- Crop Research Institute, Guangdong Academy of Agriculture Sciences, Guangzhou 510640, China
| | - H R Cheng
- Fangfang Ornamental Nursery, Guangzhou 510640, China
| | - W Z Cheng
- Fangfang Ornamental Nursery, Guangzhou 510640, China
| | - G P Rao
- Division of Plant Pathology, Indian Agricultural Research Institute, New Delhi 110012, India
| | - G Cao
- Crop Research Institute, Guangdong Academy of Agriculture Sciences, Guangzhou 510640, China
| | - M Q Zhang
- Guangxi University, Nanning, Guangxi 530005, China
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Zhang MQ, Sun DN, Xie YY, Peng GY, Xia J, Long HY, Xiao B. Three-dimensional visualization of rat brain microvasculature following permanent focal ischaemia by synchrotron radiation. BJR Case Rep 2014. [DOI: 10.1259/bjrcr.20130670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Lin ZY, Que YX, Deng ZH, Xu SQ, Rao GP, Zhang MQ. First Report of Phoma sp. Causing Twisting and Curling of Crown Leaves of Sugarcane in Mainland of China. Plant Dis 2014; 98:850. [PMID: 30708676 DOI: 10.1094/pdis-10-13-1061-pdn] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Sugarcane is a major sugar and the leading energy crop worldwide and Guangxi is the largest sugarcane production area in China (2011 Sugar Annual China, www.gain.fas.usda.gov). During survey of sugarcane crops in September 2012 and June 2013, ~5 to 10% of sugarcane (cvs. FN-40 and ROC22) planted in Chongzuo and Laibing, Guangxi Zhuang Autonomous Region, P. R. China, had twisted and curling symptoms of crown leaves similar to sugarcane Pokkah boeng disease (caused by Fusarium moniliforme Sheldon). The symptoms started appearing as yellowing on midribs and leaf margins that spread further to the entire leaf, along with twisting and curling of crown leaves. The symptomatic leaf tissues (5 × 5 mm) were surface-sterilized by 0.1% HgCl2 solution for 30 s, followed by rinsing three times in sterile water, placed on potato dextrose agar (PDA), and then incubated in darkness at 28°C. After 3 days of incubation, the isolated fungal colony appeared as white villous, spherical, radial, and dense colorless mycelium from the top, while it was reddish-brown at the bottom and later became grayish. Chlamydospores were also observed with a diameter of 5 to 10 μm and were dark brown, unicellular, intercalary, and smooth. The binucleate hyphae were colorless and transparent. Pycnidia appeared on the colonies after 20 days, and were dark brown, subglobose, and 150 to 230 μm in diameter, and the conidia were ~3 to 7 × 2.5 to 6 μm, unicellular, colorless, and ovoid to oval. The fungal isolates from the symptomatic leaves were obtained and pathogenicity was evaluated. Conidial suspensions (107 CFU/ml) of the single isolate from FN-40 were micro-injected into 20 sugarcane seedlings of cultivar FN-40. Another 20 seedlings were injected with water without conidia as control. The inoculated plants were grown in a growth chamber at 28°C with a 16-h photoperiod. Twisted and curly symptoms similar to the field appeared on the inoculated leaves at 10 days after inoculation, while the control leaves remained asymptomatic. The fungus was re-isolated and identified. Genomic DNA from the cultured fungal isolate was extracted with a modified Fungal DNA Midi Kit (Omega Bio-Tek, Inc., Norcross, GA), and amplified using fungus-conserved primer sequences (ITS1: 5'-TCCGTAGGTGAACCTGCGG-3' and ITS4: 5'-TCCTCCGCTTATTGATATGC-3'). The consensus rDNA-internal transcribed spacer sequence (GenBank Accession No. KC524502) was 100% identical with 97% coverage to the ITS sequence from Phoma sp. 3. TMS-2011 (HQ631000.1) in GenBank (3). The fungus Phoma sp. was identified on the basis of morphological characteristics (2,4) and the ITS sequence of rDNA (1,3). Disease caused by Phoma sp. has been reported earlier on sugarcane from Pakistan, Hawaii, and Taiwan, causing leaf blight and curling (2,4). However, to the best of our knowledge, this is the first report of Phoma sp. causing twisting and curling of crown leaves of sugarcane in mainland of China. References: (1) M. M. Aveskamp et al. Stud. Mycol. 65:1, 2010. (2) A. Sanguino and H. Tokeski. ISSCT Proc. 17:1555, 1980. (3) P. Shrestha et al. Appl. Environ. Microbiol. 77:5490, 2011. (4) Z. N. Wang. Rep. Taiwan Sugar Res. Inst. 129:1, 1980.
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Affiliation(s)
- Z Y Lin
- Guangxi University, Nanning, Guangxi 530004, China, and Fujian Agricultural and Forestry University, Fuzhou 350002, China
| | - Y X Que
- Fujian Agricultural and Forestry University, Fuzhou 350002, China
| | - Z H Deng
- Fujian Agricultural and Forestry University, Fuzhou 350002, China
| | - S Q Xu
- Guangxi University, Nanning, Guangxi 530004, China
| | - G P Rao
- Div. Plant Pathology, Indian Agricultural Research Institute, Pusa Campus, New Delhi 110012, India
| | - M Q Zhang
- Guangxi University, Nanning, Guangxi 530004, China, and Fujian Agricultural and Forestry University, Fuzhou 350002, China
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Zhang MQ, Sun DN, Xie YY, Peng GY, Xia J, Long HY, Xiao B. Three-dimensional visualization of rat brain microvasculature following permanent focal ischaemia by synchrotron radiation. Br J Radiol 2014; 87:20130670. [PMID: 24702152 DOI: 10.1259/bjr.20130670] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE Identifying morphological changes that occur in microvessels under both normal and ischaemic conditions is crucial for understanding and treating stroke. However, conventional imaging techniques are not able to detect microvessels on a micron or sub-micron scale without angiography. In the present study, synchrotron radiation (SR)-based X-ray in-line phase contrast imaging (ILPCI) was used to acquire high-resolution and high-contrast images of rat brain tissues in both normal and ischaemic states. METHODS ILPCI was performed at the Shanghai Synchrotron Radiation Facility, Shanghai, China, without the use of contrast agents. CT slices were reformatted and then converted into three-dimensional (3D) reconstruction images to analyse subtle details of the cerebral microvascular network. RESULTS By using ILPCI, brain vessels up to 11.8 μm in diameter were resolved. The number of cortical and penetrating arteries detected were found to undergo a remarkable decrease within the infarct area. 3 days after permanent ischaemia, vascular masses were also observed in the peripheral region of the infarcts. CONCLUSION SR-based ILPCI-CT can serve as a powerful tool to accurately visualize brain microvasculature. The morphological parameters of blood vessels in both CT slices and 3D reconstructions were determined, and this approach has great potential for providing an effective diagnosis and evaluation for rehabilitation therapy for stroke. ADVANCES IN KNOWLEDGE In the absence of contrast agent, the 3D morphologies of the brain microvasculature in normal and stroke rats were obtained using SR-based ILPCI. SR imaging is a sensitive and promising method which can be used to explore primary brain function.
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Affiliation(s)
- M Q Zhang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
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Abstract
Recent physiological and pharmacological studies have indicated the potential importance of tryptase, the major protein component in mast cells, in inflammatory diseases (especially asthma). Being released at inflammatory sites after the activation of mast cells, tryptase is capable of causing bronchohyperresponsiveness and infiltration of eosinophils, neutrophils, etc. in animal airways. The mechanisms by which tryptase causes bronchoconstriction involve probably the potentiation of other chemical mediators such as histamine, production of bradykinin via the hydrolysis of kininogen, and cleavage of the bronchodilating peptides VIP (vasoactive intestinal peptide) and PHM (peptide histidine-methionine). Tryptase has also been found to be a potent mitogen in vitro for airway smooth muscle cells and epithelial cells, implying its role in the hyperplasia of the asthmatic airways. The experimental data providing evidence for the above roles of tryptase are summarized in the present review, as well as the effects of tryptase inhibition in animal asthma models. The potential strategies for the development of anti-asthmatic agents based on the inhibition of tryptase are discussed.
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Affiliation(s)
- M Q Zhang
- Division of Medicinal Chemistry Leiden/Amsterdam Centre for Drug Research, Vrije Universiteit, De Boelelaan 1083, Amsterdam 1081 HV, The Netherlands
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Mai JH, Zhang MQ, Rong MZ, Barany T, Ruan WH. Crystallization behavior and mechanical properties of nano-CaCO3/β-nucleated ethylene-propylene random copolymer composites. EXPRESS POLYM LETT 2012. [DOI: 10.3144/expresspolymlett.2012.79] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Tian WJ, Zhang MQ, Shui RH. Prognostic factors and treatment comparison in early-stage small cell carcinoma of the uterine cervix. Oncol Lett 2011; 3:125-130. [PMID: 22740867 DOI: 10.3892/ol.2011.439] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Accepted: 08/12/2011] [Indexed: 11/06/2022] Open
Abstract
Small cell carcinoma of the uterine cervix (SCCUC) is rare and its biologic behavior is aggressive. To analyze prognostic factors and determine optimal therapy in patients with International Federation of Gynecology and Obstetrics (FIGO) stage IB1-IIA SCCUC, we retrospectively reviewed 96 patients (14 patients treated in our center and 82 patients identified by a search on PubMed) treated with radical surgery (SU), surgery plus adjuvant chemotherapy (SU+Chemo), or surgery plus adjuvant chemotherapy and radiotherapy (SU+Chemo+RT) between 1990 and 2010. Of the 96 patients, 11 patients were treated with SU, 33 with SU+Chemo, and 52 with SU+Chemo+RT. The 5-year survival rate for the 96 patients was 45%. A total of 6% (2/32) of patients had local recurrence, 75% (24/32) had distant metastases, and 19% (6/32) had both. The 5-year survival rate in stage IB1 and IB2-IIA disease was 58 and 34%, respectively (P=0.049). For patients with and without lymph node metastases (LNM), survival was 33 and 60%, respectively (P=0.045). Patients with inner 1/3 stromal invasion had a better survival than those with deep stromal invasion (DSI) (100 vs. 34%, P=0.003). Survival was not significantly different in patients treated with the above three modalities, albeit treatment selection was related to LNM (P=0.000) and DSI (P=0.027). Thus, FIGO stage, LNM and DSI are significant predictors of survival. Adjuvant therapy after SU has not improved survival compared with surgery alone. Thus, newer multimodality therapy should be evaluated.
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Affiliation(s)
- W J Tian
- Department of Gynecologic Oncology, Fudan University, Shanghai 200032, P.R. China
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Yang J, He GS, Zhang B, Luo WA, Chen XD, Fu RW, Zhang MQ. Interfacial adhesion of nanoparticles in polymer blends by intrinsic fluorescence spectra. EXPRESS POLYM LETT 2011. [DOI: 10.3144/expresspolymlett.2011.78] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Yang J, Liu MK, Zhang B, Chen XD, Fu RW, Zhang MQ. Intrinsic fluorescence studies of compatibility in thermoplastic phenol formaldehyde resin / poly(ε-caprolactone) blends. EXPRESS POLYM LETT 2011. [DOI: 10.3144/expresspolymlett.2011.68] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Luo Y, Yu XY, Dong XM, Rong MZ, Zhang MQ. Effect of nano-Si3N4 surface treatment on the tribological performance of epoxy composite. EXPRESS POLYM LETT 2010. [DOI: 10.3144/expresspolymlett.2010.18] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Zhang MQ. Purposeful surface treatment of nanoparticles for tuning structure and properties of polymer based nanocomposites. EXPRESS POLYM LETT 2010. [DOI: 10.3144/expresspolymlett.2010.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Yuan YC, Rong MZ, Zhang MQ, Yang GC, Zhao JQ. Healing of fatigue crack in epoxy materials with epoxy/mercaptan system via manual infiltration. EXPRESS POLYM LETT 2010. [DOI: 10.3144/expresspolymlett.2010.79] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Lehmann B, Schlarb AK, Friedrich K, Zhang MQ, Rong MZ. Modelling of Mechanical Properties of Nanoparticle-Filled Polyethylene. INT J POLYM MATER PO 2008. [DOI: 10.1080/00914030701337232] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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