Objective To explore the effect of treatment of children's stress hyperglycemia with glucose-insulin-potassium.Methods Thirty children with stress hyperglycemia were randomly divided into two groups,15 cases in each group.Patients in the treated group were admi-nistered with glucose-insulin-potassium,whereas those in the control group,glucose were transfused at the speed

Adult ; Blood Pressure ; Environmental Exposure ; Female ; Heart Rate ; Humans ; Hyperbaric Oxygenation ; adverse effects ; Male ; Middle Aged ; Occupational Exposure ; Personnel, Hospital ; Young Adult

Objective To study the effect of p38 mitogen activated protein kinase (MAPK) pathway inhibitors SB203580 on cell cycle of K562 cell lines and its mechanisms. Methods The expression of mRNA and protein of p38,Cyclin D2,Cyelin E and P27 in K562 cell lines treated with SB203580 were detected by retrotranscription polymerase chain reaction (RT-PCR) and Western blotting, respectively. Cell cycle was determined by flow eytometry (FCM). Results The expressions of mRNA and protein of p38, Cyclin D2 and Cyclin E in K562 cell lines treated with SB203580 were decreased and the expression of p27 was increased.The percentage of cells in G0/G1 phase was increased and was decreased in S phase. There was a significant difference as compared with K562 cell lines before treated with SB203580. Conclusion SB203580 can affect cell cycle regulatory proteins by p38 pathway and eventually inhibit proliferation of K562 cells.

BACKGROUND: Xiaohuoluo pill can expel pathogenic wind, remove dampness and activate collaterals. It is used for treatment of Bi-syndrome due to wind-cold-dampness, pain and numbness in limbs.OBJECTIVE: To observe the pharmacological effect of Xiaohuoluo pills on secondary immune response, specific immunity (including cellular immunity and humoral immunity), non-specific immunity [including complement 3(C3), mononuclear phagocyte system (MPS) and red blood cell (RBC)adhesion function] and free radical injury as well as pain and many other inflammations in mice.DESIGN: A randomized controlled stratified trial.SETTING: Guangzhou Institute of Traditional Chinese Medicine and Chinese Materia Medica; Department of Pharmacy, Guangzhou Hospital of Traditional Chinese Medicine.MATERIALS: Totally 628 NIH and ICR mice of 6 to 8 weeks were involved in this trial. Xiaohuoluo pills (components: Dannanxing, Zhichuanwu, Zhicaowu, Dilong, Ruxiang and so on; Chenli Pharmaceutical Factory,Guangzhou; Brach No. 19980612) were used in this trial. Rabbit antimouse immunoglobulin G (IgG) and C3 antiserum reagent kit (Guangzhou Institute of Medicine and Health) and reagent kit for measuring the antioxidizing activity of superoxide dismutase (SOD) and the level of malondialdehyde (MDA) (Jiancheng Institute of Bioengineering, Nanjing) were used.METHODS: This trial was carried out in the Guangzhou Institute of Traditional Chinese Medicine and Chinese Materia Medica; Department of Pharmacy, Guangzhou Institute of Medicine and Health during September 1998 to December 1999. ① To observe the suppressive effect of Xiaohuoluo pills on cock red blood cell (CRBC)-induced secondary immune response: Eight-four ICR mice, male and female in half, were selected.Twenty of 84 mice served as blank controls; The other 64 mice were intraperitoneally injected with cyclophos-phamide (CY) of 0.2 g/kgonce. On the 4th and 12th days, CRBC was intraperitoneally injected into the mice twice to induce immunoenhancing pathological models to form secondary immune response. Mice served as blank controls were intraperitoneally injected with the same volume of normal saline; The immunoenhanced mice were assigned into 3 groups by a lot: CY group (n=20, CY, 40 mg/kg, intragastric administration, I.g.), Xiaohuoluo pills (n=21, Xiaohuoluo pills suspension, 5.54 g/kg, I.g.) and model group (n=20, distilled water, the same volume as other groups, I.g.); once a day within 7 successive days. 19 days later, the levels of serum IgG and C3 were measured with single immunodiffusion method, and the level of circulating immune compound (CIC) was measured with polyethylene glycol precipitation method. ② To observe the suppressive effect of Xiaohuoluo pills on delayed type hypersensitivity (DTH): Fifty-four ICR mice, male and female in half, were selected. On the 1st day, the mice were sensitized by subcutaneous injection of 10 g/L 2,4-dinitrofluorobenzen e (DNFB) of 50 μL for each. On the 4th day, the sensitized mice were assigned into 3 groups by a lot: Prednisone group (n=18, prednisone, 0.01 g/kg, I.g.), Xiaohuoluo pills (n=18, Xiaohuoluo pills suspension, 5.54 g/kg, I.g.), model group (n=18, distilled water, the same volume as other groups, I.g.), all once a day within 7 successive days. 11 days later, 10 g/L DNFB of 25μL was spread on the right ear of each mouse in each group. The swelling degree was calculated 24 hours later (The mass difference between right ear and left ear). ③ To observe the suppressive effect of Xiaohuoluo pills on immune adhesion function of RBC of mouse: Thirty-six NIH mice, male and female in half, were selected and assigned into 3 groups by a lot: CY group (n=12, CY, 20 mg/kg,I.g.), Xiaohuoluo pills (n=12, Xiaohuoluo pills suspension, 5.54 g/kg, I.g.)and blank control group (n=12, distilled water, the same volume as other groups, I.g.), once a day within 7 successive days. 7 days later, blood was taken from the orbit of mice for calculating the rosette rate of RBC-C3b receptor and the rosette rate of RBC immune compound. ④ To observe the suppressive effect o20 Mg/kg, I.g.),Xiaohuoluo pills group (Xiaohuoluo pills suspension, 5.54 g/kg, I.g.) , once a day within 7 successive days; IgM-type hemolytic concentration (HC50)was measured at 2 hours after the last administration on the 7th day [ (Sample absorption / Absorption at HC50 of CRBC) ×diluted time]. The levels of serum C3 and MDA and the activity of SOD were measured according to the method from corresponding reagent kit. ⑥ To observe the suppressive effect of Xiaohuoluo pills on agar granulation tissue hyperplasia in mice:Fifty-nine NIH mice were selected and given subcutaneous injection of 20 g/L agar of 0.5 mL for each. 24 hours later, the mice were assigned into 3 groups by a lot: diclofenac group (diclofenac, 10 mg/kg,I.g..), Xiaohuoluo pills group (Xiaohuoluo pills suspension, 5.54 g/kg, I.g.) and model group (distilled water, the same volume as other groups, I.g.), once a day within 7 successive days; On the 8th day, the mice were sacrificed. The hyperplasiainhibiting effect was presented in the form of the mass of agar granulation tissue in one kilogram body mass ⑦ To observe the suppressive effect of Xiaohuoluo pills on acetic distortion reaction: Sixty-three NIH mice were se lected and assigned into 3 groups by a lot: diclofenac group (diclofenac,50 mg/kg, I.g.), Xiaohuoluo pills group (Xiaohuoluo pills suspension, 5.54 g/kg,I.g.) and model group (distilled water, the same volume of other groups, I.g.),once a day within 2 successive days. At 2 hours after the last administration, the mice were given intraperitoneal injection of 0.1 mol/L acetic acid of 0.2 mL for each one. The times of distortion of mice within 20 minutes were counted. ⑧ To observe the effect of Xiaohuoluo pills on the acute exudative inflammation evoked by dimethylbenzene, croton oil and carrageenan, and the level of prostaglandin E in the inflammatory exudates:Totally 219 NIH mice were selected and assigned into 3 groups by a lot:diclofenac group (diclofenac, 50 mg/kg, I.g.), Xiaohuoluo pills group (Xiaohuoluo pills suspension, 5.54 g/kg, I.g.) and model group (distilled water, the same volume of other groups, I.g.) once a day within 2 successive days. At 2 hours after the last administration, dimethylbenzene of 25 μL was spread on the right ear for 20 minutes, or croton oil of 25 μL was also spread on the right ear, 4 hours later, the swelling of right ear was calculated (mass of right ear-mass of left ear). 10 g/L carrageenan of 20 μL was subcutaneously injected into the right foot, 3 hours later, the swelling degree was calculated (The difference of right foot and left foot); and the level of prostaglandin E in the inflammatory exudates was measured. ⑨ t test(t' test for heteroscedasticity) was used for comparing the difference in measurement data among groups.MAIN OUTCOME MEASURES: Pharmacological effect of Xiaohuoluo pills on secondary immune response, specific immunity, non-specific immunity and free radical injury as well as pain and many other inflammations in mice.RESULTS: Totally 628 NIH and ICR mice were involved in result analysis. ① The level of IgG and CIC of mice in the model group was significantly higher than that in the other 3 groups respectively (P ＜ 0.01),while the level of C3 was significantly lower than that in the other 3 groups (P ＜ 0.05 to 0.01). ② The swelling degree of mice in the diclofenac group and Xiaohuoluo pills group was significantly lower than that in the blank control group respectively ( both P ＜ 0.01). ③ The rosette rate of RBC-C3b receptor and RBC immune compound in the blank control group was significantly higher than that in the other 2 gro ups respectively (P ＜ 0.01). ④ The phagocytic index (K value )in the diclofenac group and Xiaohuoluo pills group was significantly lower than that in the blank control group, respectively (both P ＜ 0.01).⑤ IgM-type HC50 and the level of serum MDA of CY group and Xiaohuoluo pills group were obviously lower than those in the immune control group (P ＜ 0.01),while the level of C3 was higher than that of immune control group, there was no significant difference in the activity of serum SOD between CY group or Xiaohuoluo pills group and immune control group (P ＞ 0.05). ⑥The ratio of agar granulation tissue mass to body mass in the diclofenac group or Xiaohuoluo pills group was significantly lower than that in the model group(P ＜ 0.01).⑦ The times of distortion of mice within 20 minutes in the diclofenac group or Xiaohuoluo pills group were signifi cantly less than those of model group(P ＜ 0.01,0.05).⑧The ear swelling degree of dimethylbenzene-induced inflammatory models and croton oil-induced inflammatory models,and foot swelling degree of carrageenan-induced acute inflammatory models as well as the level of prostaglandin E in the inflammatory exudates in the diclofenac group were significantly milder or lower than those in the model group(P ＜ 0.05 to 0.01),and the level of prostaglandin E in the inflammatory exudates in the Xiaohuoluo pills group was significantly lower than that in the model group (P ＜ 0.01).CONCLUSION: Xiaohuoluo pills possess pharmacological effects of immunosuppression, anti-proliferative inflammation, analgesia and antioxidation.

Objective To evaluate the relationship between vascular endothelial growth factor (VEGF) and extracellular signal-regulated kinase (ERK) signaling pathway in spinal dorsal horns of rats with neuropathic pain.Methods Twenty male Sprague-Dawley rats,aged 2 months,weighing 160-320 g,were randomly divided into 4 groups (n =5 each):sham operation group (group S); chronic constrictive injury (CCI) group; normal saline group (NS group); VEGF antibody group.Neuropathic pain was induced by CCI.The animals were anesthetized with intraperitoneal 10％ chloral hydrate 350 mg/kg.The left sciatic nerve was exposed and 4 ligatures were placed on the sciatic nerve at 1 mm intervals.In group S,the left sciatic nerve was only exposed but not ligated.In VEGF antibody group,VEGF antibody 0.3μg/15 μl was injected intrathecally every 2 days for 4 times starting from 2 h after CCI,while the equal volume of normal saline was injected in NS group.Paw withdrawal threshold to von Frey filament stimulation (PWMT) and paw withdrawal latency to nociceptive thermal stimulation (PWTL) were measured at 1 day before CCI (T1),and 1,3,5 and 7 days after CCI (T2-5).The rats were sacrificed after PWMT and PWTL were measured and the L4-6 segments of the spinal cord were removed for determination of phosphorylated ERK (p-ERK) expression in spinal dorsal horns by immunohistochemistry and Western blot.Results Compared with group S,PWMT and PWTL were significantly decreased at T2-5,and the p-ERK expression in spinal dorsal horns was up-regulated in CCI and VEGF antibody groups (P ＜ 0.05).Compared with CCI group,PWMT and PWTL were significantly increased at T3-5,and the p-ERK expression in spinal dorsal horns was down-regualted in VEGF antibody group (P ＜ 0.05).Conclusion VEGF in the spinal dorsal horn is involved in the development and maintenance of neuropathic pain in rats through activating ERK signaling pathway.

OBJECTIVESThe hepatitis B virus core protein has been found in nuclei, cytoplasm, or both of hepatocytes transfected with HBV DNA. It is still unclear whether intact core particles could pass through nuclear pores and what could be the mechanism regulating the subcellular localization of the core protein. This study on the distribution of core protein in hepatocytes and its translocation has a potential advantage to learn more about the HBV life cycle.

METHODSDimethyl sulphoxide (DMSO, 2%), which effects hepatic differentiation, and/or 1 micro mol/L heteroaryldihydropyrimidine Bay41-4109, which interferes with the assembly of core particles, were added into HepG2.2.15 cell culture system for 4 days. The hepatitis B virus core antigen (HBcAg) and hepatitis B virus surface antigen (HBsAg) were stained with fluorescent immunocytochemistry and then observed under a confocal microscope. HBcAg in cytoplasm and nuclei were respectively extracted and analyzed using Western blot. HBV covalently closed circular DNA (cccDNA) was detected by using selective PCR method.

RESULTSThe HBcAg was mostly expressed in the cytoplasm and weak signals of cccDNA were detected in the control HepG2.2.15 cells. After DMSO treatment, the expression of HBcAg in cytoplasm was increased about 2.5-fold; the expression of HBcAg and cccDNA in nuclei also increased. With the use of Bay41-4109, the signal of HBcAg in cytoplasm decreased 2/3, but it increased in the nuclei, and cccDNA decreased in the nuclei. When the HepG2.2.15 cells were treated both with DMSO and Bay41-4109, cord-liked distribution of HBsAg was observed in the cytoplasm. HBcAg in cytoplasm was decreased 1/2 but the HBcAg in the nuclei increased about 5-fold, whereas the cccDNA was almost negative.

CONCLUSIONIn HepG2.2.15 cells, the core protein is mainly assembled as a formation of core particles in the cytoplasm and they are blocked by the nuclear membrane. Bay41-4109 interferes with the assembly of core particles and the dissociated core proteins are able to enter the nuclei. DMSO promotes the nuclear entry of core protein/core particles and facilitates the formation of cccDNA.

Chromosome Positioning ; Dimethyl Sulfoxide ; pharmacology ; Hep G2 Cells ; Hepatitis B Core Antigens ; metabolism ; Hepatitis B virus ; physiology ; Humans ; Neoplasm Metastasis ; Pyridines ; pharmacology ; Pyrimidines ; pharmacology ; Viral Core Proteins ; metabolism ; Virus Assembly

Objective To study on the clinical application and value of double-balloon video en teroscopy in diagnosing small inlestinal bleeding. Methods Fifty-four cases with suspected small intestinal bleeding were subjected to double-balloon video enteroscopy, via the mouth and /or anus in 21, 20 and 13 cases respectively, the procedure was performed under X-ray monitoring. Results The positive rate of en-doscopy was 90. 7% , the findings were isolated or multi small intestinal ulcer 11 cases, Crhon' s disease 7 cases; chronic nonspecific inflammation 6 cases, entero-mesenchymoma 6 cases; high differentiated adeno-carcinoma 3 cases; polyps 2 cases, lymphoma 1 case, stero-pro-nematodiasis 2 cases, ancylostomiasis 2 cases, vascular deformity 2 cases ( 1 with active hemorrhage) , Michael diverticulosis 2 case, iliac polydivertic ulosis 1 case, ulcerative colonitis 1 case, duodenal stasis I case, duodenal ulcer 2 cases and essentially normal 5 cases. Complications related to the procedure never occurred. Conclusions The main causes of small intestinal bleeding are benign ulcers and tumor, as well as chronic inflammation. Parasitosis is the fourth cause. Diverticulosis and vascular deformity are the rare cause. But Michael diverticulosis is an important cause for the children with small intestinal bleeding., Double-balloon video enleroscopy is the most valuable method in diagnosing small intestinal diseases.

Fourteen compounds were isolated from the n-butanol fraction of the 95% aqueous ethanol extract of the stems and twigs of Strychnos cathayensis by D101 macroporous resin, silica gel, ODS, Sephadex LH-20 column chromatography, and semipreparative RP-HPLC. Their structures were elucidated as ethyl 4-O-β-D-allopyranosyl-vanillate (1), n-butyl 4-O-β-D-allopyranosyl-vanillate (2), n-butyl 4-O-(6′-O-syringoyl)-β-D-allopyranosyl-vanillate (3), n-butyl 4-O-(6′-O-vanilloyl)-β-D-allopyranosyl-vanillate (4), n-butyl 4-O-(6′-O-syringoyl)-β-D-glucopyranosyl-vanillate (5), n-butyl 4-O-α-L-rhamnopyranosyl-syringate (6), methyl 3-methoxy-4-(β-D-allopyranosyloxy) benzoate (7), pseudolaroside B (8), butyl syringate (9), glucosyringic acid (10), methyl syringate (11), methyl 4-hydroxy-3-methoxybenzoate (12), clemochinenoside C (13), and clemoarmanoside A (14), respectively, on the basis of spectroscopic data interpretation and by comparison with literature information. Compounds 1-6 are artificial products of phenolic acid esterified by ethanol or n-butanol. It is noted that the precursors (4-O-(6′-O-syringoyl)-β-D-allopyranosyl-vanillic acid and 4-O-(6′-O-vanilloyl)-β-D-allopyranosyl-vanillic acid) of compounds 3 and 4 are new compounds. The hepatoprotective, anti-inflammatory, antioxidant and cytotoxic activities of compounds 1-13 were evaluated in vitro at a concentration of 10 μmol·L^-1. Compounds 1, 2 and 6-10 exhibited potential hepatic protection effects with cell survival rates ranging from 53.6% to 55.5% (acetaminophen, 45.4% at 8 mmol·L^-1). Compound 4 demonstrated anti-inflammatory activity with nitric oxide inhibitory rate of 74.6%. Compounds 3 and 5 showed potential antioxidant activities with malondialdehyde inhibitory rates of 53.2% and 56.1%, respectively.

Objective To analyze the clinical efficacy of modified Xiaoqinglong Decoction with bladder ginger treatment in treating acute exacerbation of chronic obstructive pulmonary disease (AECOPD) of external cold and internal fluid. Methods Totally 150 cases of AECOPD were divided into Western medicine group, integrated traditional Chinese and Western medicine group, and observation group, with 50 cases in each group. Western medicine group received routine treatment, such as controlled oxygen therapy, anti-infection, triple inhalation, relieve spasm and asthma, cough and phlegm, correct water and electrolyte balance. On the basis of routine treatment, integrated traditional Chinese and Western medicine group received modified Xiaoqinglong Decoction, one dosage per day, twice a day, orally. On the basis of integrated traditional Chinese and Western medicine group, observation group received scraping the bladder at the back of the Bladder Meridian of Foot-Taiyang, putting 20–30 g fresh mashed ginger, for 15–20 min. All treatment lasted for 14 d. TCM symptom scores, the main symptoms of remission time and lung function before and after treatment in the three groups were compared. Results The differences in main symptoms scores (cough, expectoration, wheezing, shortness of breath) and total scores of the observation group were higher than Western medicine group and integrated traditional Chinese and Western medicine group (P<0.05). The main symptoms remission time of the observation group was much shorter than Western medicine group and integrated traditional Chinese and Western medicine group (P<0.05). Compared with before treatment, the FEV1,FEV1/FVC and MMEF of the three groups after treatment showed an upward trend (P<0.05). The FEV1, FEV1/FVC and MMEF in observation group were significantly higher than Western medicine group and integrated traditional Chinese and Western medicine group (P<0.05). Conclusion Modified Xiaoqinglong Decoction combined with bladder ginger for the treatment of AECOPD of external cold and internal fluid has definite curative effect, and can significantly improve TCM symptoms and pulmonary function.

OBJECTIVETo investigate the expression and role of miRNA-126/miRNA-126(*) in the fetal lung development of rats.

METHODSTwelve pregnant Sprague-Dawley rats were randomly divided into 3 groups and the fetal rats were removed at 16, 19 and 21 days of gestation respectively. Hematoxylin and eosin staining was performed to observe lung morphology of fetal rats. Then microRNA (miRNA) microarray was used to study the expression patterns of miRNA-126/miRNA-126(*) in fetal lungs at the three time points. And miRNA-126(*) was selected for further study by real-time PCR.

RESULTSThere was no evident difference in the expression of miRNA-126 among the three groups, however the expression level of miRNA-126(*) increased gradually as the fetal lung developed. The real-time PCR result further showed that expression of miRNA-126(*) increased gradually with lung development, displaying significant differences among the three groups (P<0.05).

CONCLUSIONSmiRNA-126(*) may play an important role in development of the fetal lung in rats.

Animals ; Female ; Lung ; embryology ; Male ; MicroRNAs ; analysis ; physiology ; Pregnancy ; Rats ; Rats, Sprague-Dawley ; Real-Time Polymerase Chain Reaction