1.Rebuilding Medical Humanism Spirit
Chinese Journal of Medical Education Research 2006;0(11):-
The nature of medicine is the unity of natural science and humanities.Due to historical and current causes,humanism spirit is lost seriously in medicine.This article aims to analyze the reason of humanism spirit loss and put forward some ways to rebuild humanism spirit in medicine.
2.Mechanisms of transcutaneous immunization and its application in allergic diseases
Chinese Journal of Dermatology 2016;49(6):441-444
Transcutaneous immunization (TCI) is a novel immunotherapy approach that induces systemic immune responses via topical application of antigens and adjuvants onto the skin.It is a safe and effective method,and is expected to serve as an attractive alternative to traditional vaccination.TCI induces immune responses in different directions,but the exact mechanism of skin immune tolerance is still unclear.Most studies on TCI are based on animal models.However,there are structural differences between animal skin and human skin,so more researches are needed to achieve the translation of TCI from bench to bedside.Not all vaccines are suitable for cutaneous inoculation,so vaccines for TCI should be evaluated for their safety and efficacy.Various reformed vaccine delivery systems are needed to be further explored in related diseases.
3.Effect of ginsenoside-Rb_1 and Re against cardiomyocyte apoptosis and expression of the related gene proteins in the experimental cardiac ischemia-reperfusion in rats
Hesong ZENG ; Zhengxiang LIU ; Xiaochun LIU
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(07):-
Objective To observe the effect of ginsenoside Rb 1 and Re on cardiomyocyte apoptosis and expression of Bcl-2, Bax, Bad and Fas gene proteins after acute ischemia and reperfusion in rats and elucidate the possible mechanisms. Methods The ischemia-reperfusion heart model was made by ligating the left anterior descending branch of coronary artery in Wistar rats. The apoptotic cardiomyocytes were confirmed with transmission electron microscopy and counted with in situ nick labeling (TUNEL) method and light microscopy. The expression of Bcl-2?Bax?Bad and Fas gene proteins were studied by immunohistochemical staining. Mean optical density (OD) value of the gene proteins expression were quantitatively examined by image analysis system. Results A.The apoptotic cardiomyocytes were not observed in the sham-operation group. The number of the apoptotic cells were 134.45?45.61/field in the ischemia- reperfusion group, 51.65?13.71/field in the ginsenoside Rb 1-treated group and 90.66? 19.22/field in the ginsenoside Re-treated group, respectively. The differences were significant among the three groups (P0.05), but Bax?Bad and Fas gene expression were decreased significantly in the ginsenoside Rb 1 and Re-treated group as compared with the ischemia-reperfusion group (P
4.Determination of 31 Triazine Herbicides in Farmland Soils by High Performance Liquid Chromatography-Tandem Mass Spectrometry
Xiaochun WANG ; Qinglong LIU ; Yongliang YANG
Chinese Journal of Analytical Chemistry 2014;(3):390-396
A high performance liquid chromatography-tandem mass spectrometric method ( HPLC-MS/MS ) was developed for the simultaneous determination of 31 kinds of triazine herbicides in farmland soils. Samples were extracted by accelerated solvent extraction ( ASE ) and purified by Oasis MCX solid phase extraction ( SPE) cartridges, and then analyzed by HPLC-MS/MS in multiple reaction monitoring ( MRM) mode with positive electrospray ionization. The analytical column was Phenomenex Luna C18 ( 150 mm í 2. 0 mm í3 μm) and the mobile phases were acetonitrile and water containing 0. 1% (V/V) formic acid. The limits of detection (S/N≥3) were 0. 008-0. 440 μg/L. All of the triazine herbicides had good linear responses with r≥0 . 996 and the average recoveries in the spiked levels of 0 . 40-40 . 0 μg/kg ranged from 76 . 9%-102 . 0%with the RSDs of 3 . 4%-10 . 3%. The HPLC-MS/MS method had been applied for the detection of the triazine herbicide residues in farmland soils from Shenyang region and the results showed that atrazine, simazine, prometryne and atrazine-desethyl were the main triazine herbicides in the region.
5.Utility of thromboelastography in intensive care unit
En MU ; Zhiyong LIU ; Xiaochun MA
Chinese Critical Care Medicine 2016;28(5):474-477
Coagulopathy is very common in patients in intensive care unit (ICU) and often indicates organ dysfunction or underlying diseases.The application of traditional methods assessing the patients' coagulation status in ICU is limited because they can not reflect the whole process of coagulation.Thromboelastography (TEG),a point-of-care (POC) assay of coagulation,fibrinolysis and platelet function,developed in recent years has been widely used in organ transplant and cardiovascular surgery and so on.However,there is no standard for the use of TEG in ICU.The development and application of TEG in sepsis,multiple trauma,guiding blood transfusion,extracorporeal membrane oxygenation (ECMO),and anticoagulation monitoring were addressed in this review,and its value and application prospect in ICU were analyzed.
6.A Study on the Relationship Between Serum Levels of Hyaluronic Acid,Type Ⅳ Collagen, Laminin and Hepatic Fibrosis in Patients with Chronic Hepatitis B
Xiaochun WANG ; Lipeng LIU ; Su LONG
Journal of Chinese Physician 2001;0(04):-
Objective To study the relationship between levels of hyaluronic acid(HA),type Ⅳ collagen(ⅣC),Laminin (LN) in sera and hepatic fibrosis in patients with chronic hepatitis B.Methods 252 sera from patients with chronic hepatitis B were collected to measure hyaluronate,type Ⅳ collagen,laminin by radioimmunoassay,and sera HBV-DNA were also tested by quantitative fluorescence PCR respectively.Results Serum concentrations of HA,ⅣC and LN were remarkably increased with the progression of the disease,and reached the highest levels in chronic severe hepatitis and liver cirrhosis(P
7.Nursing of advanced schistosomiasis patients:a report of 52 cases
Xiaochun FAN ; Lanying JIANG ; Wenxue LIU
Chinese Journal of Schistosomiasis Control 2014;(3):345-345,348
Objective To explore the reasonable nursing interventions of advanced schistosomiasis patients. Methods The medical records of 52 advanced schistosomiasis patients hospitalized from 2008 to 2013 were collected,and the nursing interven-tions were summarized. Results The 52 cases of advanced schistosomiasis included 38 men and 14 women,with a mean age of 65.8 years(57-75 years). Totally 53.8%of the subjects were schistosome positive by IHA test,67.3%positive by ELISA,and 21.2%positive of HBsAg. There were 13 cases of ascites type,34 cases of megalosplenia type,and 5 cases of dwarfism type of ad-vanced schistosomiasis. Following the therapy together with nursing interventions,73.1%achieved clinical cure,23.1%achieved stable,and 3.8%achieved improvement. The major nursing interventions involved basic nursing,diet nursing,treatment nursing, physiological nursing and surgical nursing. Conclusion The scientific and reasonable nursing interventions can improve the ther-apeutic efficacy and prognosis in advanced schistosomiasis patients,as well as improve their quality of life.
8.The Research of Social Care for HIV/AIDS Infected People and Patients in Shanxi Province
Xiaochun QIAO ; Xiaoli LIU ; Lixing LU
Chinese Medical Ethics 1995;0(02):-
This paper explores the social care for HIV-infected people and patients in Shanxi Province,detailed as two parts including medical assistance and living assistance.And the purpose of this paper is to reflect the status of comprehensive prevention and treatment of AIDS in Shanxi Province,and find out the emerging priorities and challenges in work to provide references for relevant research.
9.Unfractionated heparin inhibits lipopolysaccharide-induced expression of granulocyte colony-stimulating factor in human endothelial cells through Toll-like receptor 4 signaling pathway
Xu LI ; Yina LIU ; Xiaochun MA
Chinese Critical Care Medicine 2015;(2):81-85
ObjectiveTo determine the effect of unfractionated heparin (UFH) on lipopolysaccharide (LPS)-induced expression of granulocyte colony-stimulating factor (G-CSF), and the role of Toll-like receptor 4 (TLR4) signaling pathway in this process.Methods Human pulmonary microvascular endothelial cells (HPMECs) were cultured in vitro, and the cells between passages 3 and 5 were used in the experiments. ExperimentⅠ: the cells were divided into four groups as follows: control group, LPS stimulation group (LPS 10μg/mL), LPS+ 0.1 U/mL UFH group, and LPS+ 1 U/mL UFH group. HPMECs in UFH groups were treated with 0.1 U/mL or 1 U/mL UFH 15 minutes before LPS stimulation, and HPMECs in control group were treated with an equal volume of phosphate-buffered saline (PBS) instead. The concentrations of interleukin-6 (IL-6) and G-CSF in cell culture supernatants were determined by enzyme linked immunosorbent assay (ELISA) 24 hours after LPS challenge to detect the effect of UFH on HPMECs. ExperimentⅡ: HPMECs were treated with 5μg/mL of rhodobacter sphaeroides LPS (LPS-RS, antagonist for TLR4) 4 hours before the addition of PBS or LPS. The concentrations of IL-6 and G-CSF in cell culture supernatants were determined 24 hours after LPS stimulation to detect the effect of TLR4 on LPS-induced HPMEC injury. ExperimentⅢ: HPMECs were divided into four groups as before: control group, LPS stimulation group, LPS+ 0.1 U/mL UFH group, LPS+ 1 U/mL UFH group. Treatments to cells were the same as experimentⅠ. The protein expression of TLR4 in HPMECs was determined by Western Blot 1 hour after LPS stimulation to detect the effect of UFH on TLR4.Results① Compared with control group, the levels of IL-6 and G-CSF in LPS stimulation group were increased [IL-6 (ng/L): 655.9±58.3 vs. 75.5±18.2, G-CSF (ng/L): 388.7±36.2 vs. 35.3±12.6, both P< 0.05]. Compared with those of LPS stimulation group, in LPS+ 0.1 U/mL UFH group and LPS+ 1 U/mL UFH group, the levels of IL-6 and G-CSF were significantly decreased [IL-6 (ng/L): 518.2±64.6, 489.1±75.6 vs. 655.9±58.3, G-CSF (ng/L): 298.8±41.0, 273.4±33.2 vs. 388.7±36.2, allP< 0.05]. The results indicated that 1 U/mL UFH had better results, though there was no statistical significance between the results of two UFH groups.② LPS-induced up-regulation of IL-6 and G-CSF levels was prevented by LPS-RS [IL-6 (ng/L): 139.1±37.6 vs. 655.9±58.3, G-CSF (ng/L): 73.7±19.7 vs. 388.7±36.2, bothP< 0.05]. LPS-RS alone had no effect on cytokines [IL-6 (ng/L):118.2±42.1 vs. 75.5±18.2, G-CSF (ng/L): 48.4±26.8 vs. 35.3±12.6, bothP> 0.05].③ Compared with control group, the protein expression of TLR4 (grey value) in LPS stimulation group was significantly upregulated after 1 hour (0.87±0.23 vs. 0.36±0.12,P< 0.05). UFH with 0.1 U/mL and 1 U/mL lowered TLR-4 protein expression induced by LPS (0.68±0.18, 0.62±0.26 vs. 0.87±0.23, bothP< 0.05).ConclusionsThe expressions of IL-6 and G-CSF were increased obviously in LPS treated HPMECs. UFH might take its therapeutic effect through TLR4-dependent pathway.
10.Hepatoprotective Effect of Sabia parviflorawall:an Experimental Study
Yirong LIU ; Xiaochun QIU ; Hui CHEN
China Pharmacy 2007;0(30):-
OBJECTIVE:To study the hepatoprotective effect of the extract of Sabia parviflorawall(SPS) on mice with experimental liver injury.METHODS:The liver injury models were reproduced in mice with CCL4 and Paracetamol(AAP),respectively with the activities of serum ALT and AST measured.RESULTS:The activities of serum ALT and AST were all reduced to a certain degree in mice with liver injury induced by either CCL4 or Paracetamol(AAP).CONCLUSION: SPS exhibited certain hepatoprotective effect.