Objective To analyse effects of moxifloxacin solution for aerosol inhalation on inflammatory mediators and blood gas analysis index in patients with chronic obstructive pulmonary disease with respiratory failure.Methods 60 patients who were diagnosed with chronic obstructive pulmonary disease with respiratory failure in our hospital were collected.All patients were randomly divided into experimental group and control group,30 cases in each group.On the basis of conventional treatment, control group were given sulfate for inhalation shating amine alcohol solution 2mg per times, 3 times per day atomization inhalation treatment,and experimental group was given 2 mg/times, 4 times per day atomization inhalation treatment,two were treated for 2 weeks.After the treatment, the serum levels of CRP,TNF-α,IL-10,IL-18 and arterial blood PO2 ,PCO2 levels were detected in all patients.Results Compared with control group post-treatment, the serum levels of CRP, IL-18 and TNF-αwere lower in experimental group (P<0.05), and the serum level of IL-10 was higher;the arterial blood level of PO2 was higher,and the arterial blood level of PCO2was lower in experimental group (P<0.05). Conclusion Effect of moxifloxacin solution for aerosol inhalation can significantly reduce the serum CRP,TNF-αand IL-18 levels, improve serum IL-10 level in patients with chronic obstructive pulmonary disease with respiratory failure, ameliorate PO2 and PCO2 .

Atherosclerosis is a chronic inflammatory disease,with both the innate and adaptive immune systems responding to many endogenous and exogenous antigens.Subsequent investigations have revealed that an immunomodulatory strategy via active immunization against atherosclerotic plaque antigen(s) could potentially alleviate atherosclerosis.Substantial data from clinical investigations support the key role of immune system in atherosclerosis.So,it may be promising to develop immunotherapy against atherosclerosis.The paper reviews current status of immunization studies and possible associated immunemediated inflammatory mechanisms in atherosclerosis.

Objective:To prepare nanobody-based immunotoxin BI7D12-PE38KDEL targeting EGFR and to examine its cytotoxicity against EGFR positive tumor cells.Methods:By using molecular cloning strategy,prokaryotic expression construct of pET28a-BI7D12-PE38KDEL was generated which consisted of nanobody 7D12 targeting EGFR in the form of a divalent fused with PE38KDEL,a truncated form of pseudomonas exotoxin A via a flexible peptide(G4S)4,and then transformed into E.coli BL21(DE3).Protein expression was induced by adding IPTG,purified by Ni-affinity column chromatography,and verified by Western blot.The binding capacity of the resulted immunotoxin to EGFR-positive cells A549,HT29,MCF-7 and EGFR-negative cells CEM,Jurkat were determined by flow cytometry assay,and its cytotoxicity against the target cells was examined.Briefly,tumor cells were treated with different dosage of the immunotoxin,and the killing efficacy of BI7D12-PE38KDEL on these cells were assessed by WST-1 assay after 72 hours.Results:The SDS-PAGE and Western blot results showed the recombinant immunotoxin BI7D12-PE38KDEL was successfully prepared,and majority of them was expressed in soluble form.BI7D12-PE38KDEL could selectively bind to EGFR-positive cells of A549,HT29,and MCF-7.More importantly,the immunotoxin exhibited much more significant killing effect on these EGFR positive cells compared to the negative control group of CEM and Jurkat cells(P<0.01).Conclusion:In the current study,the nanobody-based immunotoxin BI7D12-PE38KDEL targeting EGFR was successfully prepared and exhibited a superior inhibition effect for the growth of EGFR-positive cells.

Objective To evaluate the life quality of gastroesophageal reflux disease (GERD) patients. Methods Classify the definite GERD patients by differentiation of symptoms and signs first, and then evaluate their quality of life from physiological function, physiological role, body pain, general health, activity, social function, affection function and mental health with scale SF-36. At the same time, 100 healthy persons were brought into the study as control. Results The life quality of GERD patients decreased, and the body pain, general health, social function and mental health decreased more obviously. Difference also lies among the life quality of patients of different syndromes, and the scores of physiological function, physiological role, general health and mental health show significant differences among the four syndromes. Conclusion The life quality of GERD patients decreased obviously.

Objective To analyze mutations in the PTCH1 gene in a pedigree with nevoid basal cell carcinoma syndrome (NBCCS).Methods Blood samples were collected from a 58-year-old male proband with NBCCS (Ⅱ 5),his brothers (Ⅱ 1 and Ⅱ 3) and son (Ⅲ4),and 50 unrelated healthy human controls.DNA was extracted from these blood samples.PCR and direct DNA sequencing were performed to determine mutation sites in the PTCH1 gene.According to the mutation sites,allele-specific oligonucleotide primers were designed and used to confirm the pathogenic mutations in this pedigree through PCR.Results A nonsense mutation (c.2137C),which leads to the substitution of CAG by TAG with the generation of a premature termination codon (Q714X),was identified in exon 14 in one allele of the PTCH1 gene in the proband and his son,but in none of the healthy human controls.Conclusion The nonsense mutation (c.2137C ＞ T) in the PTCH1 gene may be a specific mutation causing the clinical symptoms in the patient with NBCCS.

Objective: To observe the content of AVP changes in brain regions and pituitary of intracerebral hemorrhagic rats before and after treatment by ? sodium aescinate. Methods: Animal model was established by injecting collagenase into left caudoputamen of adult rats. Radioimmunoassay(RIA) was performed to measure the content changes of AVP, dye wet Weight methods was used to measure the changes of water contents in brain. Results: Compared with control group, the water content was increased significantly ( P

Objective:To explore the cellular protective effect and adverse reactions of amifostine in the chemotherapy of malignant solid tumor in children.Methods:A total of 62 children with malignant solid tumors receiving 253 times of chemotherapy who were admitted to the Pediatrics Single Center of Beijing Tongren Hospital from April 2018 to April 2020 were selected and divided into the experimental group (amifostine was used before chemotherapy, 113 times in total) and the control group (amifostine was not used before chemotherapy, 140 times in total) according to stratified random sampling. The self-control method was used to compare the therapeutic effects and adverse effects of the use of amifostine or not in the same child under the same chemotherapy regimen.Results:Compared with the control group, the duration of agranulocytosis [(6.7±3.0) d vs. (9.5±4.3) d, t = 3.788, P < 0.05], the duration of platelet reduction (<20×10 9/L) [(3.6±1.3) d vs. (5.4±3.2) d, t = 2.037, P < 0.05], the time of receiving recombinant human granulocyte colony-stimulating factor (rhG-CSF) treatment [(6.5±3.5) d vs. (10.0±2.8) d, t = 3.049, P < 0.05] and the time of antibiotic treatment during infection [(5.0±2.5) d vs. (8.2±2.5) d, t = 3.558, P < 0.05] in the experimental group were all shorter; the amount of platelet input required [(0.7±0.5) U vs. (1.5±0.8) U, t = 2.873, P < 0.05] was less than that of the control group. Oral mucosal ulceration occurred in only 4 (3.5%) times in the experimental group, which was lower than that in the control group [12 (8.6%) times] ( χ2 = 4.634, P = 0.033). Regardless of the cost of amifostine itself, there was a statistically significant difference in treatment cost between the experimental group and the control group ( P = 0.034), and the length of hospital stay in experimental group was relatively short ( P = 0.012). The patients were more prone to nausea and vomiting and hypocalcemia when treated with amifostine. Conclusions:Amifostine can effectively protect normal tissue cells in chemotherapy of children with malignant solid tumor and its adverse reactions are mild.

Objective To investigate the changes of serum immunoglobulin IgG in peripheral blood of infants aged 0-6 months,and to compare the effects of breast feeding and artificial feeding on the immune function of infants. Methods A total of 90 neonates born from January 2016 to December 2016 were divided into three groups: breast feeding group, mixed feeding group and artificial feeding group. There were 30 newborns in each group.Peripheral blood samples were collected at postnatal 1 d,3 d,7 d, 14 d, 42 d, 3 months and 6 months respectively. Serum levels of IgG were determined by radioimmunoassay, and the contents of each group were compared. T lymphocyte subsets(CD3+, CD4+, CD8+)in peripheral blood at postnatal 6 months were detected. Results The content of IgG in serum of neonatal decreased gradually with the increase of postnatal days.The serum IgG content at postnatal 14 d in the breast feeding group, the mixed feeding group and the artificial feeding group was (95.14 ± 4.55), (90.89±4.35),(91.74±4.19)mg/L respectively,and the breast feeding group was significantly higher than the other two groups,the difference among the groups was statistically significant(F=7.965,P<0.05).The CD8+T lymphocyte cells in the breast feeding group, the mixed feeding group and the artificial feeding group was 0.389 4±0.060 1,0.294 2±0.062 6,0.308 4±0.071 6 respectively,and the breast feeding group was significantly higher than the mixed feeding group and the artificial feeding group,and the difference among the groups was statistically significant(F=4.941,P<0.05).Conclusions Breast feeding can reduce the serum IgG content of infant consumption,slowing the pace of decline,effectively improve the infant's own ability to synthesize IgG,so as to improve infant immunity,promote their healthy growth,it is worthy of clinical application.

Objective To summarize the clinical,pathological and radiological features of retinoblastoma (RB)with central nervous system (CNS)metastasis.Methods Twenty -three patients were confirmed to have RB with CNS metastasis in Beijing Tongren Hospital from December 2005 to December 201 3,and their clinical data were retrospectively analyzed.Results (1 )The incidence of RB with CNS metastasis was 1 .83% (23 /1 260 cases),and the incidence of CNS metastasis was 7.64%(1 1 /1 44 cases)if RB with optic nerve involvement which was confirmed through pathology.At first visit 1 0 cases had a confirmed diagnosis of RB with CNS metastasis,while the other 1 3 cases had a diagnosis of RB in extraocular stages.(2)Eleven patients with RB in extraocular stages had the pathological evi-dence of optic nerve involvement which was pathologically confirmed,6 patients had optic nerve involvement with cho-roid involvement,2 patients had optic nerve involvement with nerve sheath involvement.(3)All the patients whose diagnosis of CNS metastasis had the radiological evidence of CNS metastases,and 1 case had autopsy and pathological evidence for extensive brain metastases.The main radiological feature of CNS metastasis was meninges metastasis.Thir-teen cases had the radiological features of meninges metastasis and 5 cases accompanied with spinal cord meninges me-tastasis.Then,the following radiological feature was that 7 cases had the mass of suprasellar pool.(4)Twelve cases with CNS metastasis showed the cerebrospinal fluid (CSF)RB cells positive,and the positive rate was 52.1 7%(1 2 /23 ca-ses).Conclusions (1 )The occurrence of RB with CNS metastasis is very low,but the risk of CNS metastasis in-creased in the patients with the pathological evidence of the optic nerve involvement.(2)The main site of CNS metasta-ses is meninges,followed by mass formation in the suprasellar pool.The main route for CNS metastases was along the optic nerve and /or nerve sheath directly invading and /or disseminating via the CSF.(3)The positive rate of CSF cy-tology is low,and it can be improved through repeated examination.Enhanced magnetic resonance imaging should be the most effective radiology examination for diagnosis and monitoring CNS metastasis.

Eight compounds were isolated from Bufonis periostracum by repeated column chromatography on silica gel, ODS and Sephadex LH-20 and their structures were characterized as palmitatic acid cholesteryl ester (1), cholesterol (2), 5alpha, 8alpha-epidioxycholesta-6-en-3beta-ol (3), cholest-5-en-3beta, 7beta-diol (4), cholest-7-en-3beta, 5alpha, 6beta-triol (5), 3-octaddecyloxy-1, 2-propanediol (6), isisamide (7) and bufothionine (8) on the base of spectral analysis. Compounds 1-8 were isolated from Bufonis periostracum for the first time and compounds 3, 5, 6, 7 were obtained from Bufo bufo gargarizans and Bufo genus for the first time. The bioassays showed all tested samples displayed no antitumor activity against the cell lines such as A549, BeL 7402, HGC-27 and HL-60, except the control compound bufalin.
Animals ; Antineoplastic Agents ; pharmacology ; Bufo bufo ; metabolism ; Bufonidae ; metabolism ; Humans