2.Effect of recombinant interleukin-13 on 3T3 fibroblasts in vitro
Li XIAO ; Ran AO ; Zhenhua LI ; Xianming HOU ; Runjiang YU
Chinese Journal of Pathophysiology 2000;0(08):-
AIM: To investigate the influence and mechanism of recombinant interleukin-13 (rIL-13) on fibroblasts. METHODS: 3T3 fibroblasts were divided into two groups: the treated group was treated with rIL-13 (80 ?g/L, 24 h or 48 h) and the control was without rIL-13 treatment. Transmission electron microscope and Hoechst kit were used to observe morphology of 3T3 fibroblasts in both groups. The activity of proliferation in both groups was investigated and compared by MTT means. Western blot was used to analyze the level of collagen type I induced by rIL-13 in fibroblasts. The levels of IL-6 and IL-8 in the culture supernatants were determined by radioimmunoassay. RESULTS: The more ribosomes and mitochondrions, as well as bigger nuclei were found in the treated group. The production of IL-6 and IL-8, and proliferation ratio of fibroblasts treated with rIL-13 for 24 h or 48 h were increased obviously, compared with the control (P
4.Plasma metabolite change of monoamine neurotransmitters in patients with depression after treatment
Hong XIAO ; Hui YAO ; Gang HOU ; Jijun LI ; Suwan GUO
Chinese Journal of Tissue Engineering Research 2005;9(16):246-247
BACKGROUND: Monoamine hypothesis has been demonstrated by researches. However, the correlation between the metabolite of plasma monoamine neurotransmitter and anti-depression treatment in patients with depression has less been reported.OBJECTIVE: To study the effect of different drugs on metabolite of plaama monoamine neurotransmitter, and the correlation between the metabolite of plasma monoamine neurotransmitter and anti-depression treatment in patients with depression.DESIGN: Case controlled study.SETTING: Neurological Department and Brain Institute of Nanjing Medical University.PARTICIPANTS: Forty patients with depression hospitalized in Nanjing Brain Hospital (depression group) were diagnosed with the second revised edition of China classification of mental diseases(CCMD-2) and the tenth edition of International classification of diseases. And the total score of Hanmilton rating scale for depression(HAMD) was more than 17. Healthy voluntary blood donators in the control group were from Nanjing Municipal Central Blood Station( n = 20).INTERVENTIONS: Antidepressant was used in the depression for 4 weeks: fluoxetine 20 mg per day; 5-serotonin selective reuptake inhibitor (SSRI) paroxetine 20 mg per day; venlafaxime 50- 100 mg per day;5-serotonin and morepinephrine selective reuptake inhibitor(SNRI) fluvoxamine 50-100 mg per day. High performance liquid chromatograpy(HPLC)was used to measure the level of metabolite of plasma monoamine neurotransmitter in patients with depression before and 42 week after treatment, and the HAMD was used to evaluate clinical effect of the patients.MAIN OUTCOME MEASURES: The levels of metabolites of plasma monoamine neurotransmitters in patients with depression: 5-hydroxyindoleace tic acid(5-HIAA), 3-methoxy-4-hydroxyphenylglycol(MHPG) and homovani llic acid(HVA) were measured before and 4th week after treatment.RESULTS: The levels of 5-HIAA, MHPG and HVA of the metabolites of plasma monoamine neurotransmitters in patients with depression before treatment [ (20.3±14.6), (124.8±103.6), (54.7±32.1) μg/L] were all lower than those in the normal control group[ (39.5±28.4), (334.5 ±107.3), (88.5±37.2) μg/L], with statistically significant differences (P<0.05). After SSRI treatment, the 5-HIAA content[ (37.1±21.9)μg/L]was significantly increased as compared with that before treatment, whose difference indicated significant meaning ( P<0.05), but the differences in MHPG and HVA had no significant meaning as compared with those before treatment(P>0.05) . After SNRI treatment, 5-HIAA and MHPG contents [(35.4±25.2 ), (291.2±120.4) μg/L] both were significantly increased, which indicated significant difference as compared with those before treatment( P<0.05); but HVA level had no significant changes.CONCLUSION:'The peripheral neurotransmitter metabolites in plasma can reflect their states in brain. The change of neurotransmitter metabolite in plasma can be regarded as an important reference index for the evaluation of depression.
5.Cloning and expression of the key enzyme hyoscyamine 6 beta-hydroxylase gene (DaH6H) in scopolamine biosynthesis of Datura arborea.
Wei QIANG ; Yanling HOU ; Xiao LI ; Ke XIA ; Zhihua LIAO
Acta Pharmaceutica Sinica 2015;50(10):1346-55
Hyoscyamine 6 beta-hydroxylase (H6H) is the last rate-limiting enzyme directly catalyzing the formation of scopolamine in tropane alkaloids (TAs) biosynthesis pathway. It is the primary target gene in the genetic modification of TAs metabolic pathway. Full-length cDNA and gDNA sequences of a novel H6H gene were cloned from Datura arborea (DaH6H, GenBank accession numbers for cDNA and gDNA are KR006981 and KR006983, respectively). Nucleotide sequence analysis reveals an open reading frame of 1375 bp encoding 347 amino acids in the cDNA of DaH6H, while the gDNA of DaH6H contains four exons and three introns, with the highest similarity to the gDNA of H6H from D. stramonium. DaH6H also exhibited the most identity of 90.5% with DsH6H in amino acids and harbored conserved 2-oxoglutarate binding motif and two iron binding motifs. The expression level of DaH6H was highest in the mature leaf, followed by the secondary root, and with no expression in the primary root based on qPCR analysis. Its expression was inhibited by MeJA. DaH6H was expressed in E. coli and a 39 kD recombinant protein was detected in SDS-PAGE. Comparison of the contents of scopolamine and hyoscyamine in various TAs-producing plants revealed that D. arborea was one of the rare scopolamine predominant plants. Cloning of DaH6H gene will allow more research in the molecular regulatory mechanism of TAs biosynthesis in distinct plants and provide a new candidate gene for scopolamine metabolic engineering.
6.THE EVALUATION OF NUTRITIONAL VALUE OF FOOD FORTIFIED WITH LYSINE, IRON, CALCIUM AND ZINC
Dengsong LI ; Shengmin QIAO ; Xiao YANG ; Xun HOU
Acta Nutrimenta Sinica 1956;0(02):-
The nutritional value of bread fortified with zinc, lysine, iron, and calcium was evaluated by biological method. The amount of the supplemented lysine, iron, calcium and zinc in the experimental diet was 0.3%, 0.008%, 0.3% and 0.008% respectively.32 Wistar rats were devided randomly into 4 groups; the control group was fed with ordinary bread and the other three groups were fed with bread fortified with lysine, Fe and Ca, or Zn or lysine, Ca, Fe and Zn respectively. All the rats in each group took thier respective diet and drank distilled water ad libitum.The results indicated that the body weight of the group fortified with zinc alone was increased more fast at the first two weeks, and then slow down, finally, slower than the control group obviously. The increase of body weight, FE, PER, NPU, BV, weight and length of long bones, iron status in the group fortified with lysine, iron, and Ca combind were better than the control group. The group, however, fortified with lysine, Fe, Ca and Zinc combined was the best among these four groups. It promoted the growth of the rats markedly and did not impede the utilization of iron, calcium and copper as well.
7.Experimental Study of Exogenous Collagen Membrane in Myringoplasty
Xiaoping HOU ; Shlzhi XIAO ; Desheng JIANG ; Zhaoji LI
Academic Journal of Second Military Medical University 1985;0(06):-
Myringoplasty using exogenous collagen membrane was carried out in 10 rabbits (20 ears) after complete removal of drumhead. The healing results were observed at 10, 20, 40, and 60 d, after operation. The 19 ears were transplanted successfully. Meanwhile, observational comparisons were made of the histology and ultrastructural morphology of the rabbits tympanic membrane before and after transplantation. The results confirmed that the graft has a good property of biocompatibility.and that it is of great practical value in the transplantation of tympanic membrane.
8.Comparison of Effects of Laparoscopic and Open Radical Hysterectomy on Serum IL-4, IL-10, TNF-α and IFN-γ Levels of Patients with Cervical Cancer
Min HAN ; Xiao LI ; Hua SUN ; Juhui ZHAO ; Minmin HOU
Progress in Modern Biomedicine 2017;17(22):4334-4337
Objective:To compare of the effects of laparoscopic and open radical hysterectomy on the serum Interleukin-4(IL-4),interleukin-10 (IL-10),tumor Necrosis Factor-α (TNF-α) and Interferon-γ (IFN-γ) levels of Patients with Cervical Cancer.Methods:64 patients of cervical cancer who were treated from March 2014 to September 2016 in our hospital were selected as research objects.The patients were randomly divided into the abdominal cavity group and open group.The operative time,blood loss,postoperative ventilation time and the levels of IL-4,IL-10,TNF-a and IFN-γin serum before and after treatment were compared between the two groups.Results:The intraoperative blood loss and postoperative ventilation time were significantly lower or shorter in the abdominal cavity group than in the open group (P<0.05).There was no statistically significant difference in the operation time between the two groups (P>0.05).There were no significant differences in the levels of serum IL-4,IL-10,TNF-α and IFN-γ between the two groups before operation(P>0.05);The serum IL-4 level was significantly lower than that of the open group during the operation (P<0.05).There was no significant difference in the other three index between the other three groups and the laparotomy group (P>0.05).The serum levels of IL-4,IL-10,TNF-α and IFN-γ in the abdominal cavity group were significantly lower than those of the laparotomy group on the 1 st and 7th day after operation(P<0.05).Conclusion:Laparoscopic radical mastectomy in cervical intraoperative less blood loss and more secure.The effect of IL-4,IL-10,TNF-α and IFN-γin the postoperative patients was more obvious.Conducive to the recovery of patients after surgery.
9.Time-related expression of IL-6, IL-8 and TNF-alpha following explosive injury to rabbit's chest.
Meng HE ; Li-Min DONG ; Xiao-Bin HOU
Journal of Forensic Medicine 2014;30(2):85-87
OBJECTIVE:
To explore the relationship between the expression changes of cytokines, interleukin-6 (IL-6), interleukin-8(IL-8), and tumor necrosis factor-alpha (TNF-alpha), and the wound time following explosive injury to rabbit's chest.
METHODS:
The rabbit's model of explosive injury was established. The expression levels of IL-6, IL-8 and TNF-alpha in the plasma were detected by ELISA method at different wound time (0.5-12h).
RESULTS:
The level of IL-6 increased at 3h after wounding and reached peak at 6 h. The level of IL-8 increased at 1 h and reached peak at 6 h. The level of TNF-alpha increased at 0.5 h and reached peak at 3 h.
CONCLUSION
IL-6, IL-8 and TNF-alpha have a time-related expression after explosive injury.
Animals
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Enzyme-Linked Immunosorbent Assay
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Explosions
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Interleukin-6/metabolism*
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Interleukin-8/metabolism*
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Rabbits
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Thoracic Injuries/metabolism*
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Tumor Necrosis Factor-alpha/metabolism*
10.Hospital Infection in EICU Ward: Investigation and Analysis
Xiao-Li SONG ; Ying HOU ; Hui LV ; Xi-Yun GUO ; Xiao-Qiu YANG ;
Chinese Journal of Nosocomiology 2006;0(06):-
OBJECTIVE To investigate the hospital infection rate and sites of patients in emergency intensive care(unit)(EICU),and provide basis for prevention and treatment of hospital infection.METHODS Patients who were hospitalized in EICU were investigated by retrospective study.RESULTS Among the hospital infection sites,(respiratory) tract was the most frequent one(65.63%),the next was urinary tract(28.13%),and the deep vein was the third(6.25%).The most common hospital infection bacteria were Staphylococcus aureus,Pseudomonas aeruginosa and Acinetobacter baumannii.CONCLUSIONS The analysis of the subjective and objective factors of hospital infection,and the acknowledge of relationship between nursing and hospital infection sites are(important) basis for hospital infection prevention and treatment.