Observation on the effect of power PICC with two different external lengths in catheterization of patients with hematologic diseases / 中国实用护理杂志

Objective:To investigate the effect of power PICC with two different external lengths in patients with hematologic diseases.Methods:From August 2020 to August 2021, a retrospective analysis was conducted on 233 cases of hematologic diseases who received power PICC catheterization in Department of Hematology, the Nanfang Hospital of Southern Medical University, the patients were divided into 0-1 cm group (132 cases) and 2-4 cm group (101 cases) according to the external lengths after catheter insertion. The incidence of related complications and patient comfort at 24 hours, 72 hours, 7 days and 14 days after catheterization were compared between the two groups.Results:At 24 hours and 72 hours after catheterization, the incidence of bleeding at puncture point in 0-1 cm group was 14.39%(19/132) and 9.85%(13/132), in 2-4 cm group was 30.69%(31/101) and 32.67%(33/101), the difference was statistically significant ( χ2=9.02, 14.16, both P<0.05). The rate of redness and swelling of punture point at 7 days after catheterization was 9.09%(12/132) and 40.59%(41/101) in the two groups, with statistical significance ( χ2=32.32, P<0.05). The rates of slightly prolapse at 7 and 14 days after catheterization were 18.18% (24/132) and 18.94%(25/132) in 0-1 cm group, 59.41% (60/101) and 67.33%(68/101) in 2-4 cm group, the difference between the two groups was statistically significant ( χ2=42.18, 55.86, both P<0.05). In the observation of comfort at 14 days after catheterization, the comfort score of patients in the 0-1 cm group was significantly higher than that in the 2-4 cm group, and the difference between the two groups was statistically significant ( χ2=7.34, P<0.05). Conclusions:Patients with hematologic diseases can reduce the risk of bleeding and slightly prolapse, and improve the comfort of patients when the external lengths is 0-1 cm of power PICC, which is worthy of clinical application and promotion. The catheterizer should adopt accurate in appropriate measurement method to determine the best lengths of the catheters.

Bioconversion of C1 gases and genetic engineering modification of gas-utilizing microorganisms / 生物工程学报

C1 gases including CO, CO2 and CH4, are mainly derived from terrestrial biological activities, industrial waste gas and gasification syngas. Particularly, CO2 and CH4 are two of the most important greenhouse gases contributing to climate change. Bioconversion of C1 gases is not only a promising solution to addressing the problem of waste gases emission, but also a novel route to produce fuels or chemicals. In the past few years, C1-gas-utilizing microorganisms have drawn much attention and a variety of gene-editing technologies have been applied to improve their product yields or to expand product portfolios. This article reviewed the biological characteristics, aerobic or anaerobic metabolic pathways as well as the metabolic products of methanotrophs, autotrophic acetogens, and carboxydotrophic bacteria. In addition, gene-editing technologies (e.g. gene interruption technology using homologous recombination, group Ⅱ intron ClosTron technology, CRISPR/Cas gene editing and phage recombinase-mediated efficient integration of large DNA fragments) and their application in these C1-gas-utilizing microorganisms were also summarized.

The limitation of anti-vascular endothelial growth factor treatment for wet age-related macular degeneration / 中华眼底病杂志

Wet age-related macular degeneration (wAMD) is caused by choroidal neovascularization (CNV), which occurs when the choroidal new capillaries reach the RPE layer and photoreceptor cell layer through the ruptured Bruch membrane, leading to neovascularization bleeding, leakage, and scarring. In view of the important role of VEGF in the development of CNV, targeted therapy with various intraocular anti-VEGF drugs is the first-line treatment for wAMD. However, the efficacy of anti-VEGF drugs in the treatment of wAMD is affected by a variety of factors, and some patients still have problems such as unresponsiveness, drug resistence, tachyphylaxis, long-term repeated injections, and severe adverse effects. It is the direction of future researches to deeply explore the physiological and pathological process of wAMD, find the cause of CNV formation, and seek better therapies.

Pathogenesis and potential targeted therapy of hemophilic arthropathy / 中华实用儿科临床杂志

Hemophilic arthropathy (HA) is one of the most common and typical manifestation in the course of recurrent bleeding episodes in patients with hemophilia.The main pathogenesis are synovial hyperplasia,inflammation and neovascularization,articular cartilage degeneration and bone injury.Considering its pathogenesis,potential targets for disease modifying therapy in HA are iron,inflammation,vascular remodeling,hyper fibrinolysis,bone remodeling and cartilage regeneration.So far,iron chelators,anti-inflammatory therapy,anti-fibrinolytics and bone remodeling agents have demonstrated beneficial effects,predominantly in a preclinical setting.This article reviews the pathogenesis of HA and identifies potential therapeutic targets to provide more therapeutic options for HA.

Pathogenesis and potential targeted therapy of hemophilic arthropathy / 中华实用儿科临床杂志

Hemophilic arthropathy (HA) is one of the most common and typical manifestation in the course of recurrent bleeding episodes in patients with hemophilia.The main pathogenesis are synovial hyperplasia, inflammation and neovascularization, articular cartilage degeneration and bone injury.Considering its pathogenesis, potential targets for disease modifying therapy in HA are iron, inflammation, vascular remodeling, hyper fibrinolysis, bone remodeling and cartilage regeneration.So far, iron chelators, anti-inflammatory therapy, anti-fibrinolytics and bone remodeling agents have demonstrated beneficial effects, predominantly in a preclinical setting.This article reviews the pathogenesis of HA and identifies potential therapeutic targets to provide more therapeutic options for HA.

Effects of liver-soothing therapy on the luteotropic hormone receptor and follicle stimulating hormone receptor of perimenopausal syndrome rats with liver qi stagnation / 国际中医中药杂志

Objective To explore the mechanism of Liver-soothing therapy on the Luteotropic hormone receptor (LHR) and Follicle stimulating hormone receptor (FSHR) in Perimenopausal Syndrome (PMS). Methods A total of 30 nature aging rats (13-month-old) were randomly assigned into three groups;PMS Liver-qi stagnation model (n=8), PMS Liver-qi stagnation model (n=8) treated with Chaihu-Shugan powder (4.0 g/kg?d) and PMS Liver-qi stagnation model (n=8) treated with Danzhi-Xiaoyao powder (4.0 g/kg?d). The PMS Liver-qi stagnation syndrome rat model were established by immobilizing the nature aging rats. Twelve-week-old female rats (n=8) were used as normal controls. Water decoctions of Chaihu-Shugan powder or Danzhi-Xiaoyao powder were administered respectively for 3 weeks while the rat models established. The serum E2, FSH, LH level were measured by radioimmunoassay. The LHR, FSHR in ovary were measured by quantitative real-time PCR. Results Compared with Liver-qi stagnation syndrome rat model, FSH in the Chaihu-Shugan powder group (4.32 ± 0.33 mIU/ml vs. 5.24 ± 0.45 mIU/ml) decreased (P<0.01), and LH in the Danzhi-Xiaoyao powder group (6.76 ± 0.52 mIU/ml vs. 8.08 ± 0.59 mIU/ml) decreased (P<0.01). Compared with normal controls, LHR mRNA, FSHR mRNA level increased in PMS Liver-qi stagnation model. Compared with Liver-qi stagnation syndrome rat model, LHR mRNA, FSHR mRNA level decreased (7.42 ± 2.54,4.91 ± 1.76 vs. 3.80 ± 1.36) in the ovary of Danzhi-Xiaoyao powder group (P<0.01), but there was no remarkable FHR, LHR expression changes in Chaihu-Shugan powder group. Conclusions The mechanism of Liver-soothing therapy may be related to the regulation of endocrine and decrease of LHR, FSHR.

Ultrasonography-guided wire-localization and nano-carbon staining for detection of sentinel lymph node in breast cancer / 肿瘤研究与临床

Objective@#To evaluate the usage of ultrasound guided wire-localization, nano-carbon staining and the combination of the above two methods in detecting sentinel lymph node (SLN) in breast cancer.@*Methods@#A total of 159 cases of breast cancer from May 2015 to December 2017 in Shanxi Provincial Cancer Hospital were selected, and they were treated with ultrasound guided wire-localization, nano-carbon staining and combination of the two methods separately to detect SLN before the operation. After the operation, SLN and axillary lymph node in each group were marked and made pathological diagnosis.@*Results@#There were 69 cases with pathological diagnosis of SLN metastasis and 90 cases without abnormal representation. With the patient as the unit, the sensitivity of ultrasound guided wire-localization was 100.0% (69/69), the sensitivity of nano-carbon staining was 98.6% (68/69), and the sensitivity of combination of the two methods was 97.1% (67/69). The specificity of ultrasound guided wire-localization was 3.3% (3/90), the specificity of nano-carbon staining was 2.2% (2/90), and the specificity of combination of the two methods was 5.6% (5/90). With the count of SLN as the unit, the combination of the two methods had the highest diagnostic efficiency in detecting SLN, and the difference was statistical significant (χ2 = 34.31, P < 0.001).@*Conclusions@#Ultrasound guided wire-localization and nano-carbon staining are safe and accessible methods for detecting SLN. It provides a precise treatment for early breast cancer, and it can protect medical staff from radiation, which is expected to be the best method for detection of SLN in breast cancer.

Effect of edaravone combined with batroxobin in treatment of acute progressive cerebral infarction / 中国基层医药

Objective To discuss the efficacy of edaravone combined with batroxobin in the treatment of patients with acute progressive infarction,and its influence on neurological deficit and coagulation.Methods 64 patients with acute and progressive infarction were selected,they were randomly divided into the control group and the observation group,32 cases in each group.The patients of the observation group were given edaravone combined with batroxobin,while the patients of the control group were given batroxobin only.Results The total effective rate of the observation group was 91.63%,which was obviously higher than 78.13% of the control group(χ2 =11.274,P <0.05).The NDS of the observation group was (14.8 ±2.9 )points,which was obviously lower than (17.9 ± 3.3)points of the control group(t =9.98,P <0.05).The level of Fib of the observation group was (2.9 ±0.3)g/L, which was obviously lower than (3.2 ±0.4)g/L of the control group(t =9.34,P <0.05).Conclusion Edaravone combined with batroxobin in the treatment of patients with acute and progressive infarction has significant effect and deserve promotion.

Effects of liver-soothing therapy on the expression of estrogen receptors mRNA in perimenopausal syndrome rats with liver qi stagnation / 国际中医中药杂志

Objective To explore the effect of liver-soothing therapy on the expression of estrogen receptors mRNA in perimenopausal syndrome (PMS) rats with liver qi stagnation. Methods A total of 30 nature aging rats are assigned into control groups (n=8), model groups (n=8),Chaihu-Shugan San (CHSGS group,n=8) andDanzhi-Xiaoyao San (DZXYS group, n=8), according to the random number table. The PMS liver-Qi stagnation syndrome rat models were established by the methods of isolation raised and chronic bondage in all the groups except the control group. CHSGS group were administered 4.0 g/kg water decoctions ofChaihu ShuganSan, and DZXYS group 4.9 g/kg water decoctions ofDanzhi XiaoyaoSan respectively for 3 weeks after the rat models established. The model group and control group were administered with equal volume of normal saline. The open field test was used for the behavior test. The serum E2, FSH, LH level were measured by radioimmunoassay. The ERα, ERβ in ovary were measured by quantitative real-time PCR. Results Compared with model group on the 21st days, the CHSGS and DZXYS groups showed a significantly increase in crossings (49.6 ± 6.0, 51.6 ± 5.8vs. 40.0 ± 4.6,P0.05) increaed in the DZXYS group, but there was no remarkable difference. Conclusion The Liver-soothing therapy can improve the behavior of PMS rats with liver-Qi stagnation, and the mechanism may be related to the regulation of endocrine and ovarian estrogen receptors.

The effects ofXuling-Jianguformula on bone mineral density and the bone biomechanic in osteoporosis model rats / 国际中医中药杂志

Objective To study the effects ofXuling-Jiangu formula on bone mineral density and the bone biomechanic in the osteoporosis model rats.Methods According to the random number table method, 40 SD female rats were randomly divided into the caltrate D group, theXuling-Jianguformula group, the model group and the sham group,10 rats each group. In addition to the sham group, the other groups were osteoporosis model. After 30 days, the Caltrate D group received intragastric caltrate D mixed suspension 0.126 g/kg; the Xuling-Jiangu formula group receivedXuling-Jianguformula solution 15 g/kg, and the sham group and the model group received normal saline 10 ml/kg. After 12 weeks treatment, detection of left tibia bone mineral density andthree-point bending method was used for biomechanical testing.Results The mineral density of the Xuling-Jiangu formula group (0.244 ± 0.022 g/cm2,0.195 ± 0.017 g/cm2vs. 0.223 ± 0.013 g/cm2) were significantly higher than the model group and caltrate D group (P<0.01); compared with the model group, the bone biomechanictests in theXuling-Jiangu formula group (0.072 ± 0.036 kN vs.0.041 ± 0.015 kN; 843.754 ± 428.722 N/mm2vs. 482.084 ± 176.646 N/mm2) were significantly higher (P<0.05).ConclusionXuling-Jiangu formula canimprove the bone mineral density and the bone lbiomechanic of osteoporosis rats.

Clinical features and outcomes of 78 children with non-Hodgkin lymphoma / 临床儿科杂志

ObjectiveTo explore the clinical features and factors inlfuencing the prognosis of childhood non-Hodgkin's lymphoma (NHL).MethodsPathologically diagnosed 78 pediatric patients with NHL and treated in the Afifliated Hospital of Qingdao University from January 2004 to August 2013 were collected and analyzed. Patients were grouped according to age, sex, tumor size, immunologic classiifcation, B-symptoms, LDH, hemoglobin and clinical staging. The 5-years event-free survival rate (EFS) were calculated and analyzed by Kaplan-Meier method, and the difference of the survival rate between groups were com-pared. Using Cox proportional hazards model, we analyzed the possible factors that might inlfuence 5-years event-free survival rate EFS , such as age and clinical staging. TheOR value and the 95%CI were calculated.ResultsAmong the 78 cases, median age of onset is 7 years old, male to female ratio is 2.90:1, there are 25 cases of T-cell type and 53 cases of B-cell type. According to pathological types,Burkitt lymphoma is the most common (34.6%), followed by T-lymphoblastic lymphoma (20.5%), diffuse large B-cell lymphoma (11.5%). According to the St. Jude malignant lymphoma staging system, there are 2 cases in stage I, 9 in stageⅡ, 35 in stageⅢ and 32 in stageⅣ. Swelling of periphery lymph node (80.7%) was observed as initial symptom in 26 cases of lymphoblastic lymphoma. Among 45 cases of mature B-cell tumor, the main clinical feature including abdominal cavity and gingival were observed in 27 cases of Burkitt lymphoma. Among the 73 cases received treatments, 66 cases (90.5%) attained CR (complete remission) and 4 cases (5.5%) attained PR (partial remission) by cytology and radiographic assessment after two course of combined chemotherapy, 2 cases (2.7%) rapidly relapsed after the remisson of one course treatment, 1 case (1.3%) appeared the central nervous system inifltration in the chemotherapy. With median follow-up time of 42 months, the 5-year EFS of the 73 cases was (67.0+5.5)%. Single factor analysis showed that B-symptom, LDH, and clinical staging were signiifcantly correlated with prognosis (P0.05). Multiple factor analysis showed that LDH and clinical staging inlfuenced the prognosis (OR=3.34,95%CI 2.275?10.683,P<0.01;OR=4.354,95%CI 1.519?12.475,P<0.01) .Conclusionclinical features of childhood NHL are variable. LDH and clinical staging at primary diagnosis are important factors affecting the prognosis.

Construction and identification of luciferase reporter gene containing mouse T-bet promoter / 生物工程学报

The aim of this study is to clone the mouse T-bet promoter and enhancer, construct and identify the firefly luciferase reporter gene plasmid pGL4.10-TBX21pr-CNS for T-bet transcription regulation study and its function in signaling of multiple sclerosis. The promoter and CNS of T-bet were predicted by bioinformatics assay. The predicted fragment of mouse T-bet promoter plus CNS was amplified by PCR and cloned into pGL4.10. The recombinant plasmid pGL4.10-TBX21pr-CNS was transferred into Escherichia coli DH5α. The positive clone was identified by double digestion with Kpn I and Sfi I and DNA sequencing. Finally, pGL4.10-TBX21pr-CNS was cotransfected with pRL-TK into 293T cells and Jurkat cells, pRL-TK and pGL4.10 as a control. The luciferase activity in 293T cells (P = 0.012 2) and Jurkat cells (P = 0.002 2) was higher than that of the control group. A fragment of 1 028 bp mouse T-bet promoter plus 1 308 bp CNS was successfully cloned and the firefly luciferase reporter gene plasmid pGL4.10-TBX21pr-CNS was constructed. In 293T cells and Jurkat cells, pGL4.10-TBX21pr-CNS has the promoter functions. This work offers a basic material for the research of T-bet transcription.

Influence of RNA interference in p53 gene on the expressions of genes involved in ultraviolet B-induced premature senescence and photocarcinogenesis in human skin fibroblasts / 中华皮肤科杂志

Objective To evaluate the effect of RNA interference in p53 gene on the expressions of genes involved in ultraviolet B (UVB)-induced premature senescence and photocarcinogenesis in human skin fibroblasts (HSFs).Methods A previously established HSF cell clone with repressed expression of p53,which was named as HSF-p53,was cultured and irradiated with a subcytotoxic dose (10 mJ/cm2) of UVB once a day for five consecutive days.The HSFs with normal expression of p53 served as the control.Subsequently,β-galactosidase (SA-β-gal)-staining was performed to estimate the degree of senescence,quantitative real-time PCR array was performed to determine the mRNA expressions of photocarcinogenesis-and senescence-associated genes,including p53,p21,p19,p16,pRb,fibronectin,osteonectin,smooth muscle 22 (SM22),bax,bcl-2,hypoxia-inducible factor-1 α (HIF-1α),vascular endothelial growth factor(VEGF),and human double minute-2 (hdm2).Statistical analysis was carried out by Student's t test using the software SPSS 10.0.Results The percentage of SA-β-gal-positive cells in irradiated HSF-p53 was 19.70％ ± 0.85％,significantly higher than that in unirradiated HSF-p53 (12.77％ ± 0.81％,t =6.45,P ＜ 0.05),but lower than that in irradiated control HSFs (50.48％ ± 5.30％,t =7.86,P ＜ 0.05),and similar to that in unirradiated control HSFs (18.50％ ± 0.45％,t =2.57,P ＞ 0.05).Compared with the control HSFs,the HSF-p53 showed decreased expressions of p21,p19,fibronectin,osteonectin,SM22 and bax genes (all P ＜ 0.05),but increased expressions of bcl-2,HIF-1α,VEGF and hdm2 genes (all P ＜ 0.05),and a similar expression of p16 gene (P ＞ 0.05); the repeated UVB radiation significantly promoted the expressions of p16 and pRb genes (both P ＜ 0.05),but had no obvious effect on the expressions of the other genes in HSF-p53 compared with unirradiated HSF-p53 (all P ＞ 0.05).Conclusions The inhibition of p53 expression may decelerate the UVB-induced premature senescence in HSFs,which may be involved in the p53-dependent tumor suppression.

Outcome of childhood B-cell acute lymphoblastic leukemia treated with SCMC-ALL-2005 protocol / 临床儿科杂志

Objective To analyze the outcome of childhood B-cell acute lymphoblastic leukemia treated (ALL) with SCMC-ALL-2005 protocol. Methods Newly diagnosed B-cell ALL from May 1, 2005 to April 30, 2009 in ifve hospitals were treated and followed up according to SCMC-ALL-2005 protocol. Results A total of 601 cases with newly diagnosed B-cell ALL were enrolled. Among them, 539 cases (89.68%) were followed up until September 30, 2011. In 601 patients, there were 284 low-risk cases (LR group), 231 moderate-risk cases (MR group) and 86 high-risk cases (HR group) which were treated with SCMC-ALL-2005 protocol. The total complete remission rate during the period of induction was 98.84%and 7 cases did not achieve complete remission. The median time of the ifrst event occurring was 35 months (2.94 years). Among 539 cases completing follow-up, 403 cases (74.77%) completed treatment including 223 cases (86.43%) in LR group, 150 cases (73.17%) in MR group and 30 cases (39.47%) in HR group. The rate of cases completing treatment was signiifcantly different among three groups (P=0.001). The completion rate was highest in LR group and lowest in HR group. The 3-year overall survival (OS) rate was (83.3±1.8)%, and the 3-year EFS (event-free survival) rate was (79.2±1.9)%using a Kaplan-Meier method. The 5-year OS rate was (79.5±3.3)%, and the 5-year EFS rate was (70.9±3.7)%. There were signiifcant differences in 3-year EFS rate and 5-year EFS rate among three groups (P<0.05). Conclusions Childhood B-ALL treated with SCMC-ALL-2005 protocol achieved a better therapeutic effect and prognosis. The multi-center collaborative research is useful for the standard treatment of ALL.

The association between polymorphism of parathyroid hormone gene and bone mineral density in Fuzhou postmenopausal women / 中国组织工程研究

BACKGROUND:Studies have shown the bone mineral density of postmenopausal women is closely related to parathyroid hormone. But there are differences in different areas. OBJECTIVE:To investigate the association between BstBⅠ polymorphism of parathyroid hormone gene with bone mineral density in postmenopausal women from Fuzhou area. METHODS:The bone mineral densities of the lumbar spine, femoral neck, trochanter and Ward’s triangle were measured in 150 postmenopausal women by dual energy X-ray absorptiometry. The genotype of parathyroid hormone gene was determined by polymerase chain reaction-restriction fragment length polymorphism. RESULTS AND CONCLUSION:(1) The distribution of parathyroid hormone genotypes were BB genotype 68.8%, Bb 24.1%, and bb 7.1%. The B al elic gene frequencies reached 81%, while b was 19%. The distribution fol owed the Hardy-Weinberg equilibrium. (2) Analysis of the relationship between the genotypes and bone mineral density:There was no significant difference in the bone mineral densities of the lumbar spine, femur, neck, trochanter and Ward’s triangle among the three genotypes (P>0.05). BstBⅠ gene polymorphism of parathyroid hormone gene is not correlated to bone mineral density, and there is no enough evidence to support genotype of parathyroid hormone gene as a genetic marker in predicting the risk of developing osteoperosis in Fuzhou postmenopausal women.

Influence of RNA interference-induced repression of p53 expression on senescence in human skin fibroblasts / 中华皮肤科杂志

Objective To establish a cell line with repressed expression of p53 by transfecting a plasmid construct expressing short hairpin RNA(shRNA)targeting p53 into human skin fibroblasts(HSFs),and to evaluate the effect of repression of p53 expression on the senescence in HSFs.Methods The eukaryotic expressing plasmid pGCsi-p53 containing shRNA targeting p53 gene was transfected into HSFs with lipofectamine.Subsequently,the cells were selected by G418,and resistant cell clones were chosen and expanded.Reverse transcription-PCR and real time fluorescence-based quanitative PCR were performed to determine the expression of p53 gene,and Western blot to detect the expression of p53 protein in HSFs.The senescence in HSFs was evaluated by SA β-gal staining,and cell proliferation by methyl thiazolyl tetrazolium(MTT)assay.Results A HSF clone with repressed expression of p53 was established successfully.The expressions of p53 mRNA and protein were downregulated in transfected HSFs compared with untransfected HSFs(0.09 ± 0.03 vs.0.32 ± 0.04,0.11 ± 0.04 vs.0.84 ± 0.05,both P ＜ 0.01).The percentage of senescent cells was 13.47％ ± 1.01％ in the transfected HSFs,significantly lower than that in untransfected HSFs(18.10％ ± 0.66％,P ＜ 0.05).As MTT assay showed,the proliferation was accelerated in transfected HSFs compared with untransfected HSFs(P ＜ 0.05).Conclusions The repression of p53 expression decelerates the senescence in HSFs,but promotes the proliferation of HSFs.

Application of SELDI proteomic patterns in serological diagnosis of breast cancer / 肿瘤研究与临床

Objective To explore the application of serum SELDI proteomic patterns to distinguish breast cancer patients from healthy individuals.Methods All serum samples from 101 breast cancer patients and 45 healthy individuals were analyzed by surface-enhanced laser desorption/ionization time-of-fight mass spectrometry (SELDI-TOF-MS).The spectra were generated on weak cation exchange (WCX2) chips,and protein peaks clustering and classification analysis were made using Biomaker Wizard software and Biomarker Pattern software (BPS).Then the pattern was evaluated by blinded test.Results 49 different proteins were found to have statistically differential expression levels between breast cancer and normal control sera (P ＜ 0.05).A diagnostic model consisting of three protein peaks (M/Z 5627,8124 and 2864) could do the best in the diagnosis between breast cancer and healthy individual.When the diagnostic model was tested with the blinded test set,it yielded a positive value of 95 ％ (139/146),a sensitivity of 97 ％ (98/101) and a specificity of 91％ (41/45).Conclusion These results suggested that serum SELDI protein profiling can distinguish breast cancer patients from normal subjects with relatively high sensitivity and specificity.SELDI-TOF-MS plays a valuable role in the diagnosis of breast cancer and the discovery of new tumor-specific protein biomarkers.

Effectiveness of cultured Cordyceps sinensis combined with glucocorticosteroid on pulmonary fibrosis induced by bleomycin in rats / 中国中药杂志

<p><b>OBJECTIVE</b>To study the treatment effects of cultured Cordyceps sinensis combined with glucocorticosteroid on experimental pulmonary fibrosis in rats induced by bleomycin.</p><p><b>METHOD</b>Fifty rats were randomly divided into five groups, including control group, model group, cultured C. sinensis groups, prednisone group, cultured C. sinensis combined with prednisone group. On experimental day 0, the rats were respectively intratracheally instilled with bleomycin, and rats in the control group and model group with the same volume of normal saline. One day after the injection, cultured C. sinensis and glucocorticosteroid was respectively given to rats daily by gastric gavage, while the same volume of normal saline was given to those in the control group and model group. On 28th d, bronchoalveolar lavage fluid (BALF) and lung tissue were collected. Histological changes of the lungs were evaluated by HE stain, Masson's trichrome stain. Collagen content of the lung tissue was assessed by hydroxyprolin concentration. Lung expression of CTGF protein was assessed by immunohistochemistry. The level of TGF-beta1 protein was measured by ELISA.</p><p><b>RESULT</b>Compared to model group, pulmonary fibrosis were alleviated in cultured C. sinensis and prednisone group, and CTGF expression, Hydroxyproline concentrations and protein TGF-beta1 were decreased. The combination effect of C. sinensis and prednisone group is augmented compared with using C. sinensis or prednisone group alone.</p><p><b>CONCLUSION</b>The cultured C. sinensis and prednisone alleviates pulmonary fibrosis, and the combination use of both drugs has synergia effects in anti-fibrous degeneration.</p>

Pharmacological effects of Bailing capsule and its application in lung disease research / 中国中药杂志

Cordyceps sinensis is a medicinal fungus of Traditional Chinese Medicine. There are a wide range of reported uses of Cordycep sinensis in the literature. However, the production of Cordyceps sinensis is so limited that can not be widely used. Cultured Cordyceps sinensis (Bailing Capsule) and natural Cordyceps sinensis have similar chemical composition. Bailing Capsule possesses anti-inflammatory, anti-hypoxia, anti-tumor effect function and regulating the endocrine system, enhanced immune function, which has a protective effect on the kidney, lung, liver and other organs. Recently, Bailing capsule has some beneficial effects on pulmonary diseases, such as COPD, Pulmonary fibrosis, Asthma, which have been gradually applied to the clinical.

Investigation and its clinical significance of the relative activity of multidrug resistance P-glycoprotein in the plasma of breast cancer patients / 肿瘤研究与临床

Objective To investigate the relative activity of multidrug resistance P-glycoprotein in the plasma of breast cancer patients, analyze the expression of P-glycoprotein before and after chemotherapy and evaluate its clinical value. Methods The plasma of patients and chemical reagents were mixed and distributed into the 96-well plate. The plate was read at 340 nm absorbaace before and after reaction. The variation of absorbance for each well was calculated, and then relative activity of each sample was compared to the referent compound activity. The relative activity of over 30 % was taken as positive expression of the P-gp for each sample. Results The frequency of P-glycoprotein expression was significantly increased from 16.2 % before chemotherapy to 43.2 % after chemotherapy (P<0.05). The positive expression of P-glycoprotein before and after chemotherapy were 5/6 and 9/16, respectively, in patients with positive lymph node metastasis, and 1/6 and 7/16, respectively, in patients with negative lymph node metastasis. Conclusion The results of this preliminary study suggest in P-glycoprotein expression in plasma of patients play an important role in the selection of drugs, which may be useful to evaluate the prognosis for treatment of breast cancer patients.