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PubMed | Sun Yat Sen University, Nanjing Southeast University, Hubei University of Medicine, Beijing University of Chinese Medicine and 6 more.
Type: Journal Article | Journal: Chinese medical journal | Year: 2016

Sepsis is the leading cause of death among critically ill patients. Herein, we conducted a national survey to provide data on epidemiology and treatment of sepsis in the clinical practice in China, which has no detailed epidemiological data available on sepsis.This was a prospective cross-sectional survey from December 1, 2015 to January 31, 2016 in all provinces/municipalities of the mainland of China. The primary outcome of this study was the incidence of sepsis, and the secondary outcome was its etiology in China. Patients with sepsis admitted to the Intensive Care Units were included in this study. The demographic, physiological, bacteriological, and therapeutic data of these patients were recorded. The incidence of sepsis was estimated using the data from the sixth census in China, reported by the Chinese National Health and Family Planning Commission and the National Bureau of Statistics as the standard population. The independent risk factors for increased mortality from sepsis were calculated.This study indicated the incidence and outcome of sepsis in China. It also showed the most common etiology of different sites and types of infection, which could guide empiric antibiotic therapy. Moreover, it provided information on the independent risk factors for increased mortality due to sepsis. The findings provide evidence to guide clinical management and may help improve the outcome in septic patients.ClinicalTrials.gov, NCT02448472; https://clinicaltrials.gov/show/NCT02448472.


PubMed | Tianjin Chase Sun Pharmaceutical Co. and Peking Union Medical College
Type: | Journal: Journal of chromatography. B, Analytical technologies in the biomedical and life sciences | Year: 2016

In this paper, we report a sensitive and rapid ultra performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) method which is capable of quantifying kukoamine B (KB) levels in human blood and urine. Following solid phase extraction and direct dilution process, the analyte and its internal standard (D5-KB) run on an Acquity UPLC() HSS T3 column (2.150mm i.d., 1.8m) by using a gradient elution method (run time was 1.5min). The mass spectrometric analysis was performed by using an API-5500 mass spectrometer coupled with an electro-spray ionization source. The MRM transitions of m/z 531.3(+)222.1(+) and 536.3(+)222.1(+) were used to quantify KB and D5-KB respectively. This assay method has been fully validated in terms of selectivity, linearity, lower limit of quantification, precision, accuracy, stability, recovery and matrix effect. The concentration range of this method is 10.0-2000.0ngmL(-1) in blood and 0.5-500.0ngmL(-1) in urine. Linearity (R(2)) of calibration curves were 0.99640.0022 and 0.99350.0053 for blood and urine, respectively (regression equation: y=ax+b). The precision (RSD%) of quality control samples is less than 10.3% for blood and less than 10.5% for urine. The accuracy (RE%) is within -4.0-11.3% and -11.7-12.5% for blood and urine respectively. KB was stable after 4h in ice-water bath, 1 freeze/thaw cycles and 180days at -80C for blood samples; and was stable after 3h at room temperature, 3 freeze/thaw cycles and 180days at -80C for urine samples. Recoveries of KB were 4.70.9% in blood and 96.51.3% in urine, respectively. Additionally, the applicability of this method has been proved by analyzing clinical samples from pharmacokinetic study of KB in human.


Sun C.,Tianjin Chasesun Pharmaceutical Co. | Cao J.,Tianjin University of Science and Technology
Lecture Notes in Electrical Engineering | Year: 2014

Pyrrolizinone derivatives were discovered showing remarkable anti-inflammatory and analgesic activities. Based on the SAR summarized before, a series of pyrrolizinone derivatives were designed and synthesized in this paper. All the eight target compounds were characterized by 1HNMR spectra, and the test of anti-inflammatory and analgesic activities is in progress. © Springer-Verlag Berlin Heidelberg 2014.


Ding J.,Fudan University | Li Q.-Y.,Fudan University | Wang X.,Fudan University | Sun C.-H.,Tianjin Chasesun Pharmaceutical Co. | And 2 more authors.
Journal of Neurochemistry | Year: 2010

Rho kinase (ROCK) may play an important role in regulating biological events of cells, including proliferation, differentiation and survival/death. Blockade of ROCK promotes axonal regeneration and neuron survival in vivo and in vitro, thereby exhibiting potential clinical applications in spinal cord damage and stroke. Our previous studies have demonstrated that Fasudil, a selective ROCK inhibitor, induced neuroprotection in vitro. Here we used an in vivo model of hypoxia/reoxygenation (H/R) injury to examine the neuroprotective effect of Fasudil, and explore its possible mechanism(s) in vivo. H/R resulted in the loss of hippocampal neurons, accompanied by increased apoptosis of neurons in hippocampus. The expression of ROCK II and activity of ROCK in the brain were increased after H/R, and located only in microglia, but not in astrocytes and neurons. The administration of Fasudil inhibited the activity of ROCK in brain tissue and cultured microglia, and protected hippocampal neurons against H/R injury. Further immunohistochemical analysis and cytokine determination revealed that Fasudil inhibited inducible nitric oxide synthase immunoreactivity in microglia and pro-inflammatory factors in brain tissue after H/R, which is consistent with the observation wherein Fasudil reduced the pro-inflammatory factors nitric oxide, IL-1β, IL-6 and TNF-α, and increased anti-inflammatory factor IL-10 in cultured microglia under normoxic or hypoxic conditions. Our results indicate that inhibition of ROCK by Fasudil may represent a useful therapeutic perspective by inhibiting microglial inflammatory responses in the CNS. © 2010 International Society for Neurochemistry.


Ding J.,Huashan Hospital | Ding J.,Fudan University | Li Q.-Y.,Huashan Hospital | Yu J.-Z.,Shanxi Datong University | And 4 more authors.
Molecular and Cellular Neuroscience | Year: 2010

Rho kinase (ROCK) is important in fundamental processes of cell proliferation and survival. Blockade of ROCK promotes stem cell survival in vitro and axonal regeneration in vivo, exhibiting therapeutic potential such as spinal cord injuries and stroke. Here, we used the model of hypoxia/reoxygenation (H/R) injury to explore the possibility whether Fasudil, a ROCK inhibitor in clinical application for subarachnoid hemorrhage and stroke, mobilizes adult neural stem cells in vivo. Most interestingly, Fasudil triggers neurogenesis especially in the subventricular zone after H/R. The increase of Brdu+ cholinergic neurons was observed in striatum and forebrain cortex of Fasudil-treated mice after 30 days. Further observation demonstrates that both levels of granulocyte colony-stimulating factor (G-CSF) and astrocytes expressing G-CSF were elevated in mice treated with Fasudil, as compared to mice injected with saline. In vitro H/R model of cultured astrocytes, Fasudil promoted astrocytes to produce G-CSF in a dose-dependent manner. In addition, antibody neutralization and receptor blocking of the G-CSF pathway clearly demonstrate that Fasudil-induced neurogenesis was mediated partially through astrocyte-derived G-CSF. Our results indicate that Fasudil might represent a promising therapeutic perspective by mobilizating endogenous adult neural stem cells in the CNS. © 2009 Elsevier Inc. All rights reserved.


Ye H.,Nankai University | Liu R.,Nankai University | Li D.,Nankai University | Liu Y.,Nankai University | And 7 more authors.
Organic Letters | Year: 2013

A facile approach to the diazotransfer reagent of imidazole-1-sulfonyl azide was reported. The procedure was well optimized to clarify potential explosion risks. A high production yield as well as small batch variation was achieved even without careful pretreatment of reagents and solvents. HPLC and NMR methods to monitor the process were provided. These features made this protocol suitable for large scale preparation in academia and industry as well. © 2012 American Chemical Society.


Patent
Tianjin Chasesun Pharmaceutical Co. and Third Military Medical University | Date: 2011-03-21

The use of Kukoamine A and Kukoamine B in the preparation of drugs for the prevention and treatment of sepsis and autoimmune disease is disclosed. Bacterial endotoxin/lipopolysaccaride (LPS) and unmethylated DNA (CpG DNA) of bacteria, the major pathogen-associated molecular patterns in sepsis and autoimmune disease, are specifically targeted, while the disclosed use directionally isolates lead compounds from traditional Chinese medicine. These measures can overcome the major defects of uncertainty of pharmacological material basis and drug targets of extracts and constituents of traditional Chinese medicine. The disclosed use can help in developing a safe, effective and quality controllable drug for prevention and treatment of sepsis and autoimmune disease so as to help solve the present lack of effective drugs in clinical treatment.


Patent
Third Military Medical University and Tianjin Chasesun Pharmaceutical Co. | Date: 2013-09-18

Provided are salts of kukoamine B, their preparation method and their use in preventing and treating sepsis diseases.


Patent
Third Military Medical University and Tianjin Chasesun Pharmaceutical Co. | Date: 2013-05-15

Use of kukoamine A and kukoamine B in preparing medicine for preventing and treating sepsis and autoimmune diseases. The kukoamine A and kukoamine B are extracted from cortex lycii radicis. The medicine is used for antagonism of bacterial endotoxin (LPS) and bacteria non-methylated DNA (CpG DNA).


Patent
Tianjin Chasesun Pharmaceutical Co. | Date: 2011-03-21

Salts of kukoamine B, their preparation method and their pharmaceutical use in preparation of drugs for preventing and treating sepsis. Experiments indicate that salts of kukoamine B have a good effect on antagonizing the key factors inducing sepsis, and can be used in the preparation of drugs for preventing and treating sepsis. Under the current circumstances of the lack of effective measures for the treatment of sepsis in clinical practice, the medicinal formulations, which comprise the salts of kukoamine B, pharmaceutically acceptable carrier and/or diluent, provide a new approach for the prevention and treatment of sepsis.

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