Adult ; Female ; Humans ; Male ; Occupational Diseases ; Organometallic Compounds ; poisoning

Objective: To analyze the current situation and treatment strategies of insulin allergy at home and abroad to provide reference for medical staffs to diagnose and treat the anaphylaxis.Methods: The literatures on insulin allergy in recent ten years were searched to analyze the present situation statistically and summarize the treatment strategies.Results: In recent ten years, the cases of insulin allergy were reported repeatedly.The insulin allergy mainly affected skin and its accessories, causing local allergic reactions (redness itching, induration and so on).General allergic reactions occurred rarely, but were life-threatening in severe situations.Conclusion: Medical staffs should grasp the ability of diagnosis and treatment of insulin allergy to ensure the medical safety and effectiveness for patients.

Animals ; Animals, Newborn ; Bronchoalveolar Lavage Fluid ; chemistry ; cytology ; Female ; Lipopolysaccharides ; toxicity ; Lung ; drug effects ; enzymology ; pathology ; Male ; Neutrophils ; cytology ; Peroxidase ; analysis ; Rats ; Rats, Wistar

Objective To examine the expression and analyze the significance of autophagy-related gene microtubule-associated protein 1 light chain 3 (MAP1-LC3,LC3),p62 and lysosorne-associated membrane protein 2 (LAMP-2) in pancreatic tissues of mice with acute pancreatitis (AP).Methods Twenty mice were randomized into AP group and control group,and the number of mice was equal between two groups.AP group was intra-peritoneally injected by 20％ L-arginine solution (two injections of 4 g/kg body weight,every 1 h) in the dosage of 4 g/l kg twice every 1 hour to establish AP model,while control group was administered with equal volume of normal saline by intra-peritoneal injection.All the mice were euthanized at 24 hour after the last injection.Pancreatic histopathological changes were measured.In addition,the protein expressions of LC3,p62 and LAMP-2 were detected by Western blot.Results No obvious pathological changes were observed in control group.Pancreatic acinar edema,structure destruction,missing,the obvious widening of interlobular septum,small interlobular septum and acinar septum,and the necrosis of acinar cells at different degrees were observed in AP group.The pathological score for tissue edema,hemorrhage,necrosis and inflammation in AP group was 3.13 ± 0.50,2.83 ± 0.32,3.25 ± 0.46 and 3.16 ± 0.47,respectively,which was all 0 in control group.The differences were statistically significant between AP group and control group (P ＜ 0.01).In AP group,the ratio of LC3-Ⅱ/LC3-Ⅰ,p62 and LAMP-2 protein in pancreatic tissue were 1.16 ± 0.08,0.94 ± 0.04 and 0.35 ± 0.04,respectively,which were 0.24 ± 0.02,0.34 ± 0.03 and 0.95 ± 0.03 in control group.The ratio of LC3-Ⅱ/LC3-Ⅰ and p62 protein in pancreatic tissue in AP group were much higher than those in control group,while LAMP-2 in AP group was lower than that in control group,and there was statistically significant difference between two groups (all P ＜0.01).Conclusions Intraperitoneal injection of L-arginine could induce acute pancreatitis,and autophagy is impaired,which was associated with decreased LAMP-2 protein expression.

ObjectiveTo investigate whether small epithelial cells (SEC) exist in human hepa- tocellularcarcinoma (HCC) and if so, whether they exhibit immunolabelling for both albumin and cytokeratin 7 (CK7). MethodsThirty cases of human HCC from operative specimens were investi- gated by immunohistochemistry with antibody against albumin, a marker of hepatocyte differentiation and CK7, a marker of biliary differentiation. Ten cases were investigated by electron microscopy and by immuno- electron microscopy. ResultsThe SEC were found in 20 of 30 cases that located around the edges of the tumors and appeared as proliferative small biliary ductules. Under electron microscopy they were of small size, contained sparse cytoplasm, few free ribosomes, intracellular tonofilarnents, and intercellular junctions. Immunoelectron microscopically the SEC exhibited labelling for both albumin and CK7 in 5 out of 10 cases. ConclusionSEC in human HCC are found that represent the same mor- phology like those seen in hepatoblastoma and biliary atresia, co- expressed markers for hepatocytic and biliary differentiation.

AIM:To explore a novel method to isolate human nucleus pulposus mesenchymal stem cells (hNP-MSCs) in vitro and to identify their biological characteristics.METHODS:The explant culture method was employed to isolate hNP-MSCs from nucleus pulposus tissue obtained by percutaneous endoscopic lumbar discectomy (PELD).The isolated cells were passaged for purification and cultured in vitro followed by morphological observation.The cell proliferation ability was detected by CCK-8 assay.Growth curves of the cells were drawn and surface antigens were detected by flow cytometry.The cells at the 3rd~6th passages were induced for adipogenic, osteogenic and chondrogenic differentiation, and examined by oil red O staining, alizarin red staining and Alcian blue staining.RESULTS:The cells with self-renewal were obtained from nucleus pulposus tissue obtained by PELD.The results of flow cytometry analysis revealed that the cells were positive for CD29, CD44, CD90, CD73 and CD105, but negative for CD34 and CD45.The proliferative capacity was consistent with the growth characteristics of MSCs and multilineage differentiation potential was identified.CONCLUSION:A novel method to efficiently isolate and culture hNP-MSCs,PELD combined with explant culture method,was established, which would promote the study of regenerative medicine based on hNP-MSCs.

Objective To investigate the value of prenatal ultrasound in prognosis assessment of congenital diaphragmatic hernia.Methods The ultrasonographic features of 65 fetuses with congenital diaphragmatic hernia were analyzed,which were confirmed by after birth surgery or examination.The lung-to-head ratio (LHR) of unaffected side and O/E LHR (LHR compared to normal fetuses on same gestational weeks) were obtained,and then the relationship with the prognosis of neonates were analyzed.Results In 65 cases,45 fetuses survived and 8 fetuses died after surgery,while 12 cases did not undergo surgery and death promptly.Overall mortality was 30.77％ (20/65).In 12 hepatic intrathoracic type of diaphragmatic hernia cases,the mortality rate was 66.67 ％ (8/12).In 53 hepatic intra-abdominal type of diaphragmatic hernia cases,the mortality rate was 22.64 ％ (12/53).In 9 cases combined with other structural abnormalities,there were 8 cases were dead and 6 cases (6/8) with abnormal chest structure.LHR values were from 0.40 to 2.72,the average value was 1.59±0.69.It showed statistical difference on the mortality rate in fetus of congenital diaphragmatic hernia with different LHR (x2 =19.360,P＜0.001),The mortality rate in fetal of congenital diaphragmatic hernia with LHR 1.0 or less was higher than that with LHR ＞1.0.O/E LHR measurement values were from 23％ to 90％ and the average value was (58.25±17.61) ％.It showed statistical difference on the mortality rate in fetus of congenital diaphragmatic hernia with different O/E LHR (x2 15.261,P=0.002).The mortality rate in fetal of congenital diaphragmatic hernia with O/E LHR ≤45 ％ was higher than that with O/E LHR＞45 ％.Conclusion The prenatal ultrasound can be used to diagnose congenital diaphragmatic hernia,and to assess the development of unaffected lung and prognosis.

Objective The systemic inflammatory response syndrome ( SIRS) can be caused by infection and non-infection factors, which have similar clinical features but differ in treatment and prognosis .Rapid synthesis of procalcitonin ( PCT) during infec-tion can be used as a biomarker for the early diagnosis of sepsis .The present study aims to assess the value of the serum PCT level in the etiological diagnosis and prognosis of SIRS in the surgical ICU . Methods We retrospectively analyzed the data on 166 cases of SIRS from the surgical ICU in Jinling Hospital between June 2014 and June 2015 .The data obtained were associated with the patients'demograph-ics, primary diseases, laboratory results, and clinical outcomes.We analyzed the serum PCT values , blood culture results , and clinical outcomes. Results Totally, 131 of the patients were diagnosed with sepsis, with a median value of serum PCT of 2.43 (0.81-10.51) ng/mL, of whom 109 were PCT-positive (≥0.47 ng/mL), with a positive rate of 83.2%.Among the 35 non-infection SIRS patients, the mean level of serum PCT was 0.23 (0.1 -0.39) ng/mL, with a positive rate of 17.14%(6/35).There were statistically significant differences between the two groups in both the ser-um PCT level and positive rate (P<0.05).The PCT-positive rate was significantly higher in the bacteria-infected than in the fungi-in-fected group (86.5%[83/96] vs 74.3%[26/35], P<0.05), with a median value of 4.28 (1.05-14.59) ng/mL and 0.89 (0.37-1.59) ng/mL, respectively, so was it in the survivors than in the non-survivors (94.4%[34/36] vs 78.9%[75/95], P<0.05), with a median value of 12.89 (4.76-47.73) ng/mL and 1.41 (0.54-4.00) ng/mL, respectively. Conclusion The se-rum PCT level might be used to distinguish between sepsis and non-infection SIRS, significantly higher in bacteria-infected and survival groups than in fungi-infected and non-survival groups .Serum PCT determination contributes to the etiological diagnosis and prognosis of SIRS.

OBJECTIVETo investigate the effect of Zige lyophilized powder for injection in improving the acute cerebral microcirculation disturbance in rats.

METHODWindow craniotomy was performed for rats after the drug administration for 14 days. The experimental microcirculation disturbance model was duplicated with high molecule dextran. After the drug administration, the micro-vein diameters of cerebral pla mater of various groups were observed and recorded under the biological microscope. The blood flow volume was monitored by laser Doppler flow-meter. HCT was measured by the electric resistance method. The hemorheological indexes were detected by the auto-hemorheological instrument.

RESULTZige lyophilized powder for injection (16.40, 32.70, 65.40 mg x kg(-1)) could significantly expand the micro-vein diameter of cerebral pla mater, improve the downward trend of the blood flow volume, and reduce the various hemorheological indexes.

CONCLUSIONZige lyophilized powder for injection shows the effect in improving the cerebral microcirculation.

Animals ; Brain ; blood supply ; drug effects ; Brain Ischemia ; drug therapy ; physiopathology ; Cerebrovascular Circulation ; drug effects ; Drugs, Chinese Herbal ; administration & dosage ; Humans ; Male ; Powders ; administration & dosage ; Rats ; Rats, Sprague-Dawley

To confirm the inactivating effect of chito-oligosaccharides on Tobacco mosaic virus (TMV) par ticles in vitro, the difference of TMV pathogenicity was evaluated according to the decrease of local lesion numbers after inoculating with TMV mixed with chito-oligosaccharides (DP3-10) in Nicotiana glutinosa, and the virion structural change was studied by transmission electron microscopy after mixed with chito-oligosaccharides. In the range of tested concentrations of chito-oligosaccharides (100-1000 microg /mL), the numbers of local lesions were strongly reduced with over 30% decrement, and the 88.4% reduction gained at the concentration of 600g /mL. It revealed that treatment with chito-oligosaccharide solution of 300-500 microg /mL directly broke TMV particles into tiny pieces of 50-150nm long, and that treatment with solutions of 600-1000 microg/mL caused virus particle agglomerated. The data presented here suggested that chito-oligosaccharides exerted strong inactivating effect on plant virus in vitro.
Microscopy, Electron, Scanning ; Oligosaccharides ; pharmacology ; Tobacco Mosaic Virus ; drug effects ; ultrastructure ; Virion ; drug effects ; ultrastructure