Objective To investigate the effects and probable mechanism ofShenfu injection on the oxidaitve damage of H2O2-induced PC12 cells.Methods PC12 cells were cultured and exposed to 100μmol/L H2O2 for 1 h to establish the oxidative damage model. The protective effect ofShenfu injection was observed by the cell survival rate measured by colorimetric MTT assay, and the leakage rate of lactic dehydrogense (LDH). Western blot methods were used to detect the expression of NF-κB signaling pathway.Results Compared with the model group,Shenfu injection at 5, 10, 20 ml/L could improve the PC12 cells survival rate (83.11% ± 2.59 %, 87.99% ± 0.59%, 85.26% ± 1.07%vs. 73.82% ± 1.82%;P<0.01 orP<0.05), decrease the LDH leakage rate (32.75% ± 4.10%, 28.52% ± 1.14%, 35.79% ± 1.62%vs. 64.34% ± 3.18%;P<0.01 or P<0.05). Western blot results showed thatShenfu injection could protect the PC12 cells from oxidaitve damage by suppressing the p-p65/p65 (1.30 ± 0.10, 1.17 ± 0.06, 1.37 ± 0.15 vs. 1.70 ± 0.10;P<0.01 orP<0.05), p-IκBα/IκBα (1.07 ± 0.12, 1.00 ± 0.10, 1.03 ± 0.06 vs. 1.17 ± 0.06; P<0.01 orP<0.05).ConclusionShenfu injection has a obvious antioxidant effect on PC12 cells in vitro.

Objective To analyze the clinical characteristics of AIDS-related non-Hodgkin lymphoma(ARL)and review relative literature for the diagnosis and treatment of ARL.Method The clinical data of ARL patients admitted to Peking Union Medical College Hospital from April 2009 to April 2011 were retrospectively analyzed.Results Five male ARL patients aged 32 to 65 years old were included in this retrospective study.Among them,two patients were found to be HIV-positive for the first time,three were on regular highly active anti-retroviral therapy(HAART)for 7-8 months before the emergence of lymphoma-related symptoms.CD4+ T cell count was(69-232)× 106/L at presentation.Two patients firstly presented with sore throat and throat ulcer,one with cervical nodules,one with pelvic mass,one with fever and edema in right thigh.Through pathological analysis,four patients had B cell-originated lymphoma,with one Burkitt lymphoma and three diffuse large B cell lymphomas; one patient had T-cell lymphoma.Four patients were treated with chemotherapy,with one complete remission,one relapse,one non-response,and one death.One patient had radiotherapy only and had progressed disease.Bone marrow suppression and gastrointestinal disturbance were the main adverse effects of chemotherapy.Conclusions Lymphoma should be considered in any HIV-infected patients presented with unexplainable adenopathy,recurrent sore throat or throat ulcer,or fever of unknown origin.Biopsy should be rigorously carried out.Appropriate chemotherapy,together with HAART,may improve the prognosis greatly.

AIM To study the effects of coadministration of berberine chloride(Ber) with cyclosporin (CsA) on liver microsomal cytochrome P450 isoenzyme and multi drug resistance gene in rats. METHODS The activities of liver microsomal erythromycin demethylase(ERD) and aminopyrence N demethylase(ADM) were determined. The levels of mRNA expression of CYP3A1, CYP1A1, CYP2E1, mdr1a and mdr1b were assayed with RT PCR. RESULTS After administration for 6 days, all treatment groups except Ber at 100 mg?kg -1 exhibited inhibitory action on ERD activity in rats. ERD activity markedly decreased in all drug treatment groups after taking drug for 12 days. After administration for 6 days, 45 mg?kg -1 CsA, 100 mg?kg -1 Ber coadministrated with 45 mg?kg -1 CsA and 200 mg?kg -1 Ber plus 45 mg?kg -1 CsA had significant inhibitory effects on ADM activity in rats. All groups except 100 mg?kg -1 Ber and 150 mg?kg -1 ketoconazole had the same effects on ADM activity after treatment for 12 days. Again, after 12 days, all drug treatment groups except 100 mg?kg -1 Ber group was found of remarkable inhibition of the mRNA expression of CYP3A1, CYP2E1, mdr1a and mdr1b. The CYP1A1 gene was not detected in all groups. CONCLUSION The mechanism of Ber to increase CsA concentration is that Ber decreases the expression of CYP3A, mdr1a and mdr1b thereby reduces the metabolism and elimination of CsA by liver.

Objective To investigate surgical exposure,reduction and fixation of the severe Pilon fractures. Methods A total of 11 patients with severe Pilon fractures (Rüedi-Allgwer type Ⅲ or AO/OT type C3 ) were managed by anteriormedial malleolar approach in combination with transfibular fracture or fibular osteotomy approach to reveal the tibiotalar joint.Reduction was performed under direct vision and then the tibia was fixed followed by fibula fixation. Results All patients obtained satisfactory bone reduction including nine patients with Ⅰ stage wound healing and two with Ⅱ stage wound healing.No sclerotin infection occurred.The fractures as well as the osteotomy sites were healed. Conclusions The double operative approaches can completely expose the tibiotalar joint,favor the reduction and fixation of the displaced bone fragments and attain satisfactory short-term reduction and fixation effects in the treatment of severe Pilon fractures.

AIM:To investigate the activation and inactivation of nuclear factor kappa B(NF-κB)when tumor necrosis factor-related apoptosis-inducing ligand(TRAIL)is applied to induce the apoptosis of androgen-independent prostate cancer cell line PC-3M.METHODS:After the treatment of TRAIL or LPS at different doses,we tested the nuclear translocation of NF-κB by cell immunohistochemical staining and electrophoretie mobility shift assay(EMSA),and evaluated the level of IκB by RT-PCR under pyrrolidine dithiocarbamate(PDTC)treatment.RESULTS:EMSA and cell immunohistochemical analysis showed that the translocation of NF-κB was significantly activated when PC-3M cells were treated with TRAIL or LPS(P＜0.05).The pretreatment of PDTC upregulated the expression of IκB and blocked the nuclear translocation of NF-κB.CONCLUSION:TRAIL remarkably stimulates the activation of nuclear NF-κB in androgen-independent prostate cancer cells.On the other hand,the translocation of NF-κB can be significantly and efficiently inhibited in PC-3M cells by pretreatment with PDTC.The increased expression of IκB might be a clue for this inhibition,which means the possible way to enhance the effect of TRAIL in the apoptosis of prostate cancer cells.

Tumor Necrosis Factor is one of the cell factors with much stronger anti-tumor activity. In this study, photoactive arylazide-4-azidobenzoic acid was modified to Tumor Necrosis Factor-alpha (TNF-alpha). The IR data (2127cm(-1)) was given to confirm the modification. By photo-immobilization, this modified TNF-a was immobilized on cell culture polystyrene. Both the relation between the amount of TNF-alpha in feed and immobilized TNF-alpha and the influence of different UV irradiation time on photo-immobilization are discussed. Microscopic observations of the photo-immobilization TNF-alpha were made by use of scanning electrom microscope and atomic force microscope.
Female ; Humans ; Photochemistry ; Tumor Necrosis Factor-alpha ; chemistry ; therapeutic use ; Ultraviolet Rays ; Uterine Cervical Neoplasms ; therapy

Objective To reevaluate the diagnostic efficacy of International Society of Thrombosis and Haemostasis (ISTH) and Japanese Association for Acute Medicine (JAAM) criteria for sepsis disseminated intravascular coagulation (DIC).Methods A total of 769 patients diagnosed as sepsis were enrolled in our study.Blood samples were collected within the first hour in ICU and the index of coagulation was detected.The correlation between the conventional coagulation index and the acute physiology and chronic health evaluation (APACHE Ⅱ) and sequential organ failure assessment (SOFA) scores was analyzed.The sensitivity and specificity of diagnostic efficacy were analyzed by receiver operating characteristic (ROC) curve.Results In the 769 cases,95 cases (12.35％) conformed to the standard of ISTH and 271 cases (35.24％) were in accordance with the standard of JAAM.Prolonged prothrombin time (PT) was seen in 726 cases (94.41％).Activated partial thromboplastin time (APTF) was prolonged in 434 cases (56.44％).Plasma fibrinogen (Fib) was decreased in 94 cases (12.22％) and increased in 365 cases (47.46％).Platelet (PLT) count decreased in 158 cases (20.55％).D-dimer was elevated in 759 cases (98.70％).Fibrin degradation product (FDP) was increased in 724 cases (94.15％).PT,APTT,D-dimer,FDP,PLT were correlated with APACHE Ⅱ (r value were 0.259,0.348,0.319,0.289,-0.275,all P values＜0.05)and SOFA score(r values were 0.409,0.445,0.407,0.411,-0.526,respectively,all P values＜0.05).The areas under the curve (AUCs) in the ISTH standard from high to low were accordingly PT (0.813),FDP (0.792),PLT (0.746),Fib (0.563).The AUCs from high to low were FDP (0.844),PLT (0.716),and PT (0.660),respectively in the JAAM standard.Under the criteria of ISTH,the diagnostic sensitivities of PT,PLT,Fib and FDP were 92.63％,67.37％,9.47％,98.95％,respectively,and specificities as 53.56％,86.05％,99.26％ and 33.38％％ respectively.As to the JAAM criteria,the diagnostic sensitivities of PT,PLT,and FDP were 74.54％,52.77％,91.51％ and specificities as 51.61％,84.94％,40.76％ respectively.Conclusions According to the ISTH and JAAM diagnostic criteria,the diagnostic efficacy of PT and PLT is relatively high,which is associated with the severity of DIC.D-dimer and FDP have the high sensitivity but the specificity is poor.The diagnostic specificity of Fib is good,yet with low sensitivity and poor overall efficacy.

OBJECTIVETo explore the preventive effect of lanthanum chloride on enteral bacterial translocation in scalded rats.

METHODSNinety Sprague-Dawley (SD) rats were employed in the study and randomly divided into three groups, i.e. normal control (A), burn control (B) and treatment (C) groups. Plasmid PUC19 labelled by JM109 was transfected to Escherichia coli (E. coli), so that restriction endonuclease finger - print image spectrum analysis could be applied to the tracing and quantification of the translocation of E. coli from intestine to mesenteric lymph nodes (MLNs) and blood. The intestinal tissue contents of endotoxin (ET), nitric oxide (NO), nitric oxide synthase (NOS), malondialdehyde (MDA) and superoxide dismutase (SOD) were determined.

RESULTSIt was identified that the bacteria in MLNs and blood exhibited the same gene map with those from gastric gavage in B and C groups. But the bacterial quantity in MLNs in C group on 3 postburn day (PBD) was much lower than that in B group (P < 0.05). The intestinal MDA content in C group on 1 and 3 PBDs was obviously higher than that in B group (P < 0.05).

CONCLUSIONBacteria (E. coli) could be translocated from gut to MLNs and blood, which could be evidently alleviated by lanthanum chloride by means of its bactericidal property, inhibition of NOS activity, so that NO production decreased, and its ability to increase SOD activity leading to less production of MDA.

Animals ; Burns ; drug therapy ; microbiology ; Endotoxins ; blood ; metabolism ; Escherichia coli ; drug effects ; growth & development ; metabolism ; Escherichia coli Infections ; blood ; microbiology ; prevention & control ; Female ; Intestines ; drug effects ; metabolism ; microbiology ; Lanthanum ; pharmacology ; Lymph Nodes ; drug effects ; microbiology ; Male ; Malondialdehyde ; blood ; metabolism ; Mesentery ; drug effects ; microbiology ; Nitric Oxide ; blood ; metabolism ; Nitric Oxide Synthase ; blood ; metabolism ; Rats ; Rats, Sprague-Dawley ; Superoxide Dismutase ; blood ; metabolism

Objective To investigate the clinical value of routine MRI and functional imaging modality in the diagnosis of neonatal hypoglycemic encephalopathy.Methods Twelve diagnosed cases of neonatal hypoglycemic encephalopathy were obtained.Routine MRI sequence and DWI and SWI were performed in all cases.The MRI findings of each sequence as well as the sensitivity and the effect of each sequence were analyzed.Results The lesions were mainly located in corpus callosum (1 2 cases)followed by white matter of occipital lobe,frontal lobe and temporal lobe.Bilateral symmetrical distribution was found in 6 cases.The lesions were manifested as dot and flake like shape with different sizes,low signal intensity in T1WI,high in T2WI,bright in DWI and low in ADC maps and low SWI signal lesions.The total number of lesions in each sequence were displayed as follows:31 lesions in DWI,10 lesions in FLAIR,9 lesions in T2WI,6 lesions in T1WI and 5 lesions in SWI.The signal values were 1 898.30±290.46 and 933.71± 450.34 in T2WI and DWI respectively.The signal to noise ratio in T2WI and DWI were 9.28±5.73 and 22.40±15.59 respectively, and the DWI contrast signal ratio was significantly higher than that of T2WI (F=7.48,P=0.012).Conclusion The signal features and distribution of MRI in neonatal hypoglycemic encephalopathy are characteristic.DWI is more sensitive than other sequences in displaying lesions and SWI sequence could detect micro hemorrhagic foci.MRI routine sequence with function imaging is a valuable method for the diagnosis of neonatal hypoglycemic encephalopathy.

Objective:To analyze the staff salary status and the influencing factors in traditional Chinese medicine(TCM) hospitals implementing the salary system reform in Sichuan province in 2020, for reference in optimizing the salary system reform of such hospitals.Methods:Cluster sampling and institutional survey were used to collect the salary information of 26 TCM hospitals in 21 cities(prefectures)of Sichuan province implementing the salary system reform in 2020. Such information was then subject to descriptive analysis, while the influencing factors of salary were subject to one-way analysis of variance and generalized linear model multifactor analysis.Results:15 428 staff from 26 TCM hospitals were included as the research objects. In 2020, personnel expenditure accounted for 40.23% of the total expenditure, and 24.34% of which came from financial subsidy in 26 TCM hospitals. The average annual payable income per person was(149 312±74 288)yuan, 67.82% of which being performance pay. Analysis of variance showed that there were significant differences among the salary levels of staff in different economic regions, hospital grades, hospital levels, gender, educational background, position, seniority, performance pay ratio, employment in the government system and other natures, senior and other professional titles, doctors and other positions( P<0.05), and the differences were still statistically significant after adjustment by generalized linear model( P<0.05). Conclusions:The reform of the salary system of Sichuan TCM Hospitals has basically achieved equal pay for equal work, and the income of low-level personnel has been improved. However, the salary level was not very motivated and the salary structure was not guaranteed. It is necessary to strengthen financial precision subsidies, increase the proportion of personnel expenditure, so as to support the increase of the absolute value of salary in non-core economic areas, improve the salary structure, reasonably widen the salary gap among different educational backgrounds and positions, further optimize internal distribution, and ensure the sustainable development of Chinese medicine talents.