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【摘要】 目的 分析急性缺血性卒中完全可逆性DWI高信号病例的临床与影像学特征。 方法 回顾性分析2012年1月-2015年12月的急性缺血性卒中完全可逆性DWI高信号病例9例，通过基线与随访数据评估其临床与影像学特征。 结果 急性缺血性卒中完全可逆性DWI高信号病例基线NIHSS评分为1（1～2.5）分，基线DWI高信号体积为0.94（0.28～2.39）mL，病变既见于皮层/皮层下，又见于深部白质，随访90 d的mRS评分为0（0～1）分。 结论 急性缺血性卒中完全可逆性DWI高信号多见于轻型卒中，病灶梗死体积小，临床预后良好。 【Abstract】 Objective To analyze the clinical and imaging characteristics in acute ischemic stroke (AIS)patients with complete reversible DWI hyperintensities. Methods Data of nine AIS patients with complete reversible DWI hyperintensities from January 2012 to December 2015 were collected retrospectively. Clinical and imaging characteristics in these patients were evaluated through baseline and follow-up information. Results The median baseline NIHSS was 1 (1-2.5), the mean baseline volume of DWI hyperintensities was 0.94 (0.28-2.39) mL and the median mRS at 90 days was 0 (0-1) in the nine patients. Complete reversible DWI hyperintensities could be found in cortex, subcortical white matter, and deep white matter. Conclusions Complete reversible DWI hyperintensities were usually found in minor stroke with small infarct volume, and such patients usually had good clinical outcome.

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With fresh cut rose flowers as the test materials, taking traditional natural dye plant Buddleja officinalis Maxim.as dye materials, the influences of dye concentration, dyeing temperature, dyeing time and pH of dye solution on the dyeing effect of natural rose immortal flowers dyed by the natural yellow pigment of B.officinalis were studied by using the orthogonal test method,, in order to lay the foundation for the further development and utilization of natural dye plants B.officinalis and the plant dyeing process of immortal flowers. The results showed that the optimum process for dyeing rose immortal flowers with natural yellow pigment of B.officinalis was as follows: pH of dye solution 7, dyeing time 7 h, dyeing temperature 35 °C, dye concentration 14 g/L. Under the best dyeing process, rose immortal flowers was orange, natural in shape, soft in texture, full in color, so it had good ornamental value. [ABSTRACT FROM AUTHOR]

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Carbon dioxide is an indispensable carbon resource in the life activities, however, the excessive emission of carbon dioxide enhances the greenhouse effect which leads to more extreme weather globally. In this paper, a fictional hunting action with a code name of “carbon capture” is anthropomorphically described, in which the CO2 capture technology is vividly introduced. The advantages and disadvantages of individual techniques are summarized, based on which the future prospects of research direction is presented. [ABSTRACT FROM AUTHOR]

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Objective To investigate the application of different doses of dexmedetomidine combined with ropivacaine thoracic paravertebral block in thoracic surgery. Methods Thoracic paravertebral block was performed in 157 patients underging elective thoracic surgery. Patients were divided into the four groups. The control group (n=40) was treated with 0.375% ropivacaine, while patients in the low-dose group (n=39), middle-dose group (n=40) and high-dose group (n=38) were treated with 0.5 µg/kg, 1.0 µg/kg and 2.0 µg/kg of dexmedetomidine combined with 0.375% ropivacaine, respectively. Heart rate (HR) and mean arterial pressure (MAP) on entering the room (T0), at anesthesia induction (T1), at the beginning of surgery (T2), at 30 minutes after the beginning of surgery (T3) and at the end of surgery (T4) were recorded. Visual Analogue Scale (VAS) scores in resting state and active state, levels of epinephrine and cortisol (Cor) at different time points after surgery were also recorded. Results The intraoperative dosages of propofol and remifentanil, and the times of postoperative patient-controlled analgesia used in the middle-dose group and the high-dose group were lower than those in the control group and the low-dose group, and the times of postoperative patient-controlled analgesia used in the low-dose group was less than that in the control group (P＜0.05). HR and MAP at T2were lower in the high-dose group than those of the other 3 groups. HR at T3 was lower in the high-dose group than that of the control group and the middle-dose group (P＜0.05). Compared with the control group and the low-dose group, the VAS and Cor scores at 12 h, 24 h and 48h after surgery and in resting state and active state were decreased in the middle-dose group and the high-dose group. Epinephrine was decreased at 12 h and 24 h after surgery. The VAS scores and epinephrine levels at 24 h and 48 h after surgery and in resting state, the VAS scores at 12 h and 48 h after surgery and in active state, and Cor level at 24 h after surgery were lower in the low-dose group than those in the control group. The VAS score in resting state at 12 h after surgery was lower in the high-dose group than that in the middle-dose group (P＜0.05). Conclusion 1.0 µg/kg of dexmedetomidine combined with ropivacaine thoracic paravertebral block can improve postoperative analgesia effect, reduce stress response and have little influence on hemodynamics in patients undergoing thoracic surgery. [ABSTRACT FROM AUTHOR]

Evaporation is an important component of both hydrological and energy cycles and is very sensitive to climate change. In the context of global warming, rising temperature leads to a series of changes in hydrological factors, such as precipitation, evaporation, soil moisture, and groundwater flow, which have significant impacts on the natural environment, ecosystems, and social economy. Pan Evaporation (PE) is a vital climatic factor for estimating the atmospheric evaporation demand, and its change has been recognized as an integrative indicator of the hydrological response to climate change. Therefore, it is of great theoretical and practical significance to analyze the variation characteristics of PE and its influencing factors for water resource evaluation, hydrological process research, agricultural irrigation, and evaporation monitoring under climate change. The Yangtze River Basin (YRB) is a densely populated and highly developed area that plays an important role in the development of China's national economy. To discuss the variations in PE in the YRB and its main influencing factors, previous studies only divided the basin into upper, middle, and lower reaches based on natural and social factors. However, the area of the YRB is vast, and the PE varies greatly among the different regions of the basin under the influence of terrain and climate conditions. It is not sufficient to discuss the variation characteristics of regional PE from upstream, middle, and downstream. Additionally, most time series remained around 2000 in the existing studies, and the analysis of change characteristics of recent PE time series and its influencing factors have not been reported. Therefore, it is essential to conduct consistent regionalization for PE in the YRB and to identify the factors influencing PE variations in the subregions in recent decades. In this study, the Rotating Empirical Orthogonal Function (REOF) and Fuzzy C-Means clustering algorithm (FCM) were applied to form subregions based on pan observation data from 148 meteorological stations in the Yangtze River Basin during 1980-2017. Then, the variation characteristics and main influencing factors of PE in each sub-region were analyzed using the modified Mann-Kendall test and multivariate stepwise regression analysis. The results are as follows: (1) The first four REOF modes revealed five principal PE anomaly sensitive areas in the basin: southeast Poyang Lake plain, southwest Hengduan Mountain, northern Nanyang Basin, western Sichuan Plateau, and Central Sichuan Basin. Based on these spatial modes, the PE in the basin can be divided into nine subregions. (2) At the annual scale, PE in respective regions shows an increasing trend with the highest rate (111.28 mm/10 a) in the central basin and the lowest rate (12.5 mm/10 a) in the western plateau region. At the seasonal scale, PE in autumn and winter showed an increasing trend in the whole basin, while the variation in PE in spring and summer showed obvious regional differences, and PE in some areas showed a decreasing trend. (3) The main factors affecting the change in PE differ from region to region; however, in most of the sub-regions, PE variations are closely related to the changes in mean temperature and vapor pressure deficit. Our results are conducive to a better understanding of the temporal changes in PE in other regions of the world. In particular, the results can contribute to the development of more efficient methods for modeling and predicting PE variations by focusing on the main influencing factors under changing climatic conditions. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of South China Normal University (Natural Science Edition) / Huanan Shifan Daxue Xuebao (Ziran Kexue Ban) is the property of Journal of South China Normal University (Natural Science Edition) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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以TA克隆法构建中间载体PUCF1,再构建γ干扰素基因表达载体PBIF1。通过农杆菌转化导入烟草叶圆片外植体。经4轮梯度卡那霉素(Kanamycin)递增筛选，获得抗性植株。经PCR证实其中部分植株已将人γ干扰素基因片段整合到烟草基因组中，从而为成功地建立烟草植物反应器生产人γ干扰素基因奠定了基础。

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Copyright of Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Objective: To observe the expression and clinical significance of serum homocysteine (Hcy), Cystatin C (CysC), matrix metalloproteinase-1 (MMP-1), neutrophil gelatinase related lipid delivery protein (NGAL) in patients with acute myocardial infarction (AMI) after PCI. Methods: 70 patients with AMI in our hospital were selected from March 2018 to September 2020. According to whether ventricular remodeling occurred after PCI, they were divided into no ventricular remodeling group(n=49) and ventricular remodeling group (n=21). The serum MMP-1, Hcy, NGAL, CysC levels and cardiac function indexes [left ventricular posterior wall thickness (LVPWT), left ventricular end diastolic diameter (LVEDD), left ventricular ejection fraction(LVEF), ventricular septal thickness (IVST)] of patients were detected. The correlation between serum MMP-1, Hcy, NGAL and CysC levels and cardiac function indexes were analyzed. The influencing factors of ventricular remodeling after PCI in patients with AMI were analyzed. Results: The serum MMP-1, Hcy, NGAL and CysC levels in the ventricular remodeling group were higher than those in the no ventricular remodeling group P<0.05, while LVEDD, IVST and LVPWT were all greater than those in the no ventricular remodeling group, and LVEF was smaller than that in the no ventricular remodeling group (P<0.05). Pearson correlation analysis results showed that serum MMP-1, Hcy, NGAL, CysC levels were positively correlated with LVEDD, IVST and LVPWT, but negatively correlated with LVEF (P<0.05). Univariate analysis showed that there were statistically significant differences in infarct site, arrhythmia, monocyte (MO), creatine kinase isoenzyme (CK-MB), and time from onset to opening of infarct-related artery between the two groups (P<0.05). Multivariate Logistic regression analysis showed that anterior wall infarction site, arrhythmia occurs and high levels of MO, CK-MB, MMP-1, Hcy and CysC were all risk factors for ventricular remodeling after PCI in patients with AMI (P<0.05). Conclusion: The serum expressions of MMP-1, Hcy, NGAL and CysC are closely related to ventricular remodeling in patients with AMI after PCI. The detection of the above indexes can provide some reference for the prediction and prevention of ventricular remodeling in patients with AMI after PCI. [ABSTRACT FROM AUTHOR]

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Objective: To investigate the relationship between serum homocysteine (Hcy) level and left ventricular remodeling, myocardial perfusion and prognosis in patients with acute ST-segment elevation myocardial infarction (STEMI) after percutaneous coronary intervention (PCI). Methods: A total of 70 patients with STEMI who were admitted to our hospital from February 2018 to January 2020 were selected, and they were divided into high level Hcy group (Hcy > 30 滋mol/L, 41 cases) and low level Hcy group (15≤ Hcy≤ 30滋mol/L, 29 cases) according to the serum Hcy level at admission. Left ventricular mass index (LVMI) and left ventricular ejection fraction (LVEF) were measured at 1 month, 6 months and 12 months after PCI, coronary angiography was reviewed, and TIMI myocardial perfusion grade (TMPG) was evaluated. Pearson correlation or Spearman rank correlation analysis were used to analyze the correlation between Hcy level and LVMI, LVEF and TMPG grades. All patients were followed up for 12 months after PCI, all-cause deaths and major adverse cardiac events (MACE) were recorded during follow-up. Cox risk ratio regression was used to analyze the prognostic factors of patients with STEMI after PCI. Results: LVEF of the high level Hcy group at 3 and 12 months after PCI was lower than that of the low level Hcy group (P < 0.05), and LVMI was higher than that of the low level Hcy group (P < 0.05). The incidence rate of poor myocardial perfusion after PCI in the high level Hcy group was higher than that in the low level Hcy group (P< 0.05). Hcy level was negatively correlated with LVEF at 3 and 12 months after PCI (P < 0.05), positively correlated with LVMI (P < 0.05), and negatively correlated with TMPG grade after PCI (P < 0.05). The incidence rate of all-cause death and MACE during follow-up in the high level Hcy group were higher than those in the low level Hcy group (P < 0.05). Cox proportional risk regression analysis showed that Hcy and preoperative Gensini score were were influential factors for poor prognosis in patients with STEMI after PCI (P< 0.05). Conclusion: High Hcy level is associated with left ventricular remodeling and myocardial perfusion in patients with STEMI after PCI, and Hcy is an influential factor for all-cause death and MACE in patients with STEMI after PCI. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Zhejiang University (Science Edition) is the property of Journal of Zhejiang University (Science Edition) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agricultural Science & Technology (1008-0864) is the property of Journal of Agricultural Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To investigate the value of serum Omentin-1 and homocysteine (Hey) levels in the evaluation of ventricular remodeling and prognosis in patients with acute myocardial infarction. Methods Ninety patients with acute myocardial infarction (case group) were collected and divided into the good prognosis (n = 67) and poor prognosis (n = 23) groups according to whether there were adverse cardiovascular events within 6 months after percutaneous coronary intervention (PCI). Meanwhile, 50 healthy physical examination subjects were randomly selected as the control group during the same period. The serum Omentin-1 and Hcy levels were measured by enzyme-linked immunosorbent assay. The parameters of ventricular remodeling including left atrial diameter (LAD), left ventricular end diastolic diameter (L VEDD), inter-ventricular septum thickness (IVST), posterior wall diastolic (PWD), posterior wall systolic (PWS), and left ventricular ejection fraction (LVEF) were measured by echocardiography, and left ventricular myocardium index (LVMI) was calculated. Pearson product moment correlation analysis was used to analyze the correlation between serum Omentin-1, Hey and ventricular remodeling parameters in patients with acute myocardial infarction. Receiver operating characteristic ( ROC) curve was drawn, and area under curve ( AUC) was calculated to evaluate the predictive value of serum Omentin1 and Hcy for poor prognosis in patients with acute myocardial infarction. Results The level of serum Omentin-1 in the case group was lower than that in control group, and serum Hey level was higher than that in control group (both P < 0. 05 ). The LAD, LVEDD, IVST, PWD, PWS and LVMI in the case group were higher than those in the control group, and the level of LVEF was lower than that in the control group (all P < 0. 05). Pearson product moment correlation analysis showed that serum Omentin-1 was negatively correlated with LAD, LVEDD, IVST, PWD, PWS, and LVMI (r = - 0. 638, - 0. 571, - 0. 593, - 0. 568, -0. 612, - 0. 614), and positively correlated with LVEF (r = 0. 649, P <0. 05); the serum Hcy was positively correlated with LAD, LVEDD, IVST, PWD, PWS, and LVMI (r = 0. 672, 0. 611, 0. 604, 0. 640, 0. 639, 0.592, all P <0. 05), and was negatively correlated with LVEF (r = - 0. 651, P < 0. 05). The serum Omentin-1 level in the good prognosis group was higher than that in the poor prognosis group, and Hcy level was lower than that in the poor prognosis group (both P < 0. 05). ROC curve showed that the AUC of Omentin-1 in predicting adverse cardiovascular events was O. 800, the sensitivity and specificity were 78.26% and 82.09%, the accuracy was 81.11%. The AUC of Hcy in predicting adverse cardiovascular events was 0.777, the sensitivity and specificity were 69. 57% and 76. 12%, and the accuracy was 74.44%; the AUC of Omentin-1 combined with Hcy was 0. 881, the sensitivity and specificity were 86. 96% and 92. 54%, and the accuracy was 91.11%. Conclusion The expression of serum Omentin-1 decreases and Hcy increases in patients with acute myocardial infarction, both of the two indexes are closely related to the severity of ventricular remodeling, and the early combined detection of Omentin-1 and Hcy can help to evaluate the poor prognosis of patients. [ABSTRACT FROM AUTHOR]

Copyright of Asian Journals of Ecotoxicology is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Objective To compare the long-term efficacy of surgical and non-surgical comprehensive therapies in the treatment of locally advanced laryngeal cancer (T3-4N0-3M0), and to explore the treatment options for the advanced laryngeal cancer. Methods The clinical data and follow-up data of 190 patients initially diagnosed with locally advanced laryngeal cancer and underwent surgical (total laryngectomy or partial laryngectomy, TL/PL) and non-surgical (chemoradiotherapy or concurrent chemoradiotherapy, CRT/CCRT) treatments in our hospital were enrolled in the study for a retrospective analysis. The 5-year survival results and survival influencing factors in two groups as well as clinical and pathological subgroups were explored and discussed. Results There were 136 patients in the surgical group (TL 100 cases, PL 36 cases) and 54 patients in the non-surgical group (CRT 42 cases and CCRT 12 cases), of which the 5-year overall survival (OS) rates were 50.7% and 33.3% in surgical group and non-surgical group respectively (Log-rank χ2=9.116，P＜0.01). The 5-year progressionfree survival (PFS) rates were 46.3% and 22.2% respectively (Log-rank χ2=13.927，P＜0.01). For patients with T4 tumors, clinical stage Ⅳ, lymph node metastasis and supraglottic laryngeal cancer, the 5-year OS was higher in the surgical group than that in the non-surgical group (P＜0.01). In the non-surgical group, 8 patients with T4b stage died within 5 years. The 5-year OS of 46 patients who effectively responded to the induction chemotherapy was 39.1%, which was not statistically different from that of the surgical group (50.7%, Log-rank χ2=1.855, P＞0.05). Eleven patients underwent salvage TL with a 5-year OS of 45.5%, which was not statistically different from that of the surgical group (Log-rank χ2=0.114, P＞0.05). Moreover, compared with the surgical group, patients of the non-surgical group showed a higher risk of death (HR=2.580, 95%CI: 1.665-3.997, P＜0.01). Multivariate analysis showed that smoking, lymphatic metastasis, clinical stage Ⅳ and tumor recurrence were independent prognostic factors for OS of advanced laryngeal cancer (P＜0.05). Conclusion For locally advanced laryngeal cancer, the long-term efficacy of comprehensive therapy based on surgical treatment is better than that of the non-surgical treatment. Patients who are effective to induction chemotherapy could try non-surgical treatment to preserve laryngeal function. The salvage of total laryngectomy may improve the long-term survival for patients with non-surgical treatment failure. [ABSTRACT FROM AUTHOR]

Objective To explore the expressions of nucleotide-binding oligomerization domain-containing 1 (NOD1) and silent information regulator 1(SIRT1) in the fetal membranes and to investigate their relationship with matrix metalloproteinase -3 (MMP-3) and IL-1β levels in amniotic fluid from women with premature rupture of the membranes (PROM), and to provide guidance for further understanding the pathogenesis and treatment of PROM. Methods A total of 90 pregnant women were separated into three groups: term premature rupture of the membranes (tPROM) group, preterm premature rupture of the membranes (pPROM) group and healthy control group. The location and expression levels of NOD1 and SIRT1 in the fetal membranes were measured by immunohistochemistry and Western blot assay. IL-1β and MMP-3 levels in amniotic fluid were detected with ELISA. The relationship between the expressions of NOD1, SIRT1, IL-1β and MMP-3 was assessed. Results The expressions of NOD1, IL-1β and MMP-3 were significantly higher in PROM group compared with those of healthy control group, but the expression of SIRT1 was lower than that of healthy control group (P＜ 0.05). Furthermore, the expressions of NOD1, IL-1β and MMP-3 were significantly higher in pPROM group than those in tPROM group (P＜0.05). There was no significant difference in the SIRT1 expression between tPROM group and pPROM group (P＞0.05). The expression of NOD1 was positively correlated with the levels of IL-1β and MMP-3 (P＜0.01). The expression of SIRT1 was negatively correlated with the levels of IL-1β and MMP-3 (P＜0.01). Conclusion The level of NOD1 in fetal membranes and levels of IL-1β and MMP-3 in amniotic fluid are increased. The level of SIRT1 in fetal membranes is decreased. Changes of the expressions of the four proteins are correlative and related with the occurrence of PROM. [ABSTRACT FROM AUTHOR]

Copyright of Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To explore the therapeutic effect of picosecond alexandrite lattice laser combined with tranexamic acid in the treatment of seborrheic keratosis and its effect on sex hormones. Methods From March 2017 to January 2019, 238 patients with seborrheic keratosis admitted to department of dermatology were randomly divided into control group and observation group, 119 patients in each group. The control group was treated by ultra-pulse carbon dioxide laser. The observation group was treated by picosecond alexandrite lattice laser combined with tranexamic acid. Each group was treated by appropriate energy according to the location and properties of the lesion. All patients were followed up at 3 months after the treatment finished. Dermatology life quality index (DLQI), sex hormones level (E2, FSH, LH) and adverse reactions between 2 groups were recorded. Results The effective rate of the control group was 72.3% and the cure rate was 29.4%. The effective rate of the observation group was 78.2% and the cure rate was 58.0%. The cure rate of the observation group after one treatment was significantly better than that of the control group(P<0.001). There was no significant difference in the effective rate(P>0.05). The level of E2, FSH and LH of the observation group was lower than those before the treatment (P<0.05). The DLQI scores of both groups were lower than those before the treatment (P<0.05). There was no significant difference between two groups (P>0.05). No serious adverse reactions occurred. Conclusion Picosecond alexandrite lattice laser combined with tranexamic acid had a good therapeutic effect on seborrheic keratosis patients. This method could help to improve the level of sex hormones. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Southern Agriculture is the property of Journal of Southern Agriculture and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Mental Health Journal / Zhongguo Xinli Weisheng Zazhi is the property of Chinese Mental Health Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)