Study on quantitative detection of bacterial endotoxin in recombinant novel coronavirus vaccine (CHO cell) by micro-dynamic chromogenic / 中国药理学通报

Aim To explore the feasibility of the micro- dynamic chromogenic method for quantitative detection of bacterial endotoxin in recombinant novel coronavirus vaccine ( CHO cell).Methods The micro-dynamic color method of Limulus reagent was used to establish a bacterial endotoxin standard curve.The dilution factor was determined through interference pre -experiment, the recoverv rate of the endotoxin added to the test so- J lution was determined, and the interference test to complete the quantitative detection test of the bacterial endotoxin content in the test product was performed, and the results were compared with those of the gel-clot method.Results Hie linear range of the concentration of the standard curve was 0.02 to 2.0 EU • mL 1 , and the regression equation of the standard curve was lgT =-0.302 7 lgC +2.858 7( r = 0.998 9).When recombinant novel coronavirus vaccine ( CHO cell) was cliluted 40 times or below, the micro -dynamic chromogenic reagent did not interfere with the bacterial endotoxin agglutination reaction, and the recovery rate was 50% to 200%.The test results were consistent with the gel- clot method.Conclusions The micro-dynamic chromogenic method can be used for the quantitative detection of bacterial endotoxins in recombinant novel coronavirus vaccine ( CHO cell) with accurate results, high sensitivity, and process monitoring.

Discussion on Technical Evaluation Requirements of Allergen Detection Reagent Pre-marketing / 中国医疗器械杂志

In the perspective of technical evaluation, the pre-marketing regulatory requirements of allergen detection reagents in China, America, European Union were compared, and the regulatory risks and performance requirements of this product were analyzed based on the monitoring of post-marketing adverse events, reference standards and domestic and foreign regulatory documents. In view of the "neck-stuck" problems such as the difficulty of clinical trials, the difficulty of finding comparable contrast reagents and the lack of clinical diagnostic gold standards, this paper discusses and gives regulatory suggestions, with a view to providing technical reference for product R&D, production, evaluation, approval and supervision in this field.

Effect of electroacupuncture on postpartum uterine contraction pain and uterine involution: a randomized controlled trial / 中国针灸

OBJECTIVE@#To observe the effect of electroacupuncture on postpartum uterine contraction pain and uterine involution.@*METHODS@#A total of 80 patients with postpartum uterine contraction pain were randomly divided into an observation group and a control group, 40 cases in each group. The observation group was treated with electroacupuncture at Dahe (KI 12), Zhongzhu (KI 15), Hegu (LI 4), Xuehai (SP 10), etc. for 30 min, once a day, 3 days were as one course, and 2 courses with 1-day interval were required. The control group was treated with oral @*RESULTS@#Compared before treatment, the VAS scores of 24, 48, 72 h into treatment and after treatment were decreased in both groups (@*CONCLUSION@#Electroacupuncture can effectively relieve postpartum uterine contraction pain, accelerate the discharge of residual uterine hemorrhage in the uterine cavity, and promote uterine involution.

Effect of electroacupuncture at / 中国针灸

OBJECTIVE@#To observe the clinical therapeutic effect of the combination of electroacupuncture (EA) at @*METHODS@#A total of 58 patients after uterine curettage of incomplete abortion were randomized into an EA group and a western medication group, 29 cases in each one. In the western medication group, mifepristone tablets were administered orally, 2 tablets each time, once daily. In the EA group, on the base of the treatment as the western medication group, EA was applied to @*RESULTS@#After treatment, the intrauterine residue area and CDFI blood flow signal positive rate were all reduced as compared with the values before treatment in patients of the two groups (@*CONCLUSION@#The combined treatment of electroacupuncture at

Lung macrophages are involved in lung injury secondary to repetitive diving / 浙江大学学报（英文版）（B辑：生物医学和生物技术）

This study aimed to establish an animal model of decompression-induced lung injury (DILI) secondary to repetitive diving in mice and explore the role of macrophages in DILI and the protective effects of high-concentration hydrogen (HCH) on DILI. Mice were divided into three groups: control group, DILI group, and HCH group. Mice were exposed to hyperbaric air at 600 kPa for 60 min once daily for consecutive 3 d and then experienced decompression. In HCH group, mice were administered with HCH (66.7% hydrogen and 33.3% oxygen) for 60 min after each hyperbaric exposure. Pulmonary function tests were done 6 h after decompression; the blood was harvested for cell counting; the lung tissues were harvested for the detection of inflammatory cytokines, hematoxylin and eosin (HE) staining, and immunohistochemistry; western blotting and polymerase chain reaction (PCR) were done for the detection of markers for M1 and M2 macrophages. Our results showed that bubbles formed after decompression and repeated hyperbaric exposures significantly reduced the total lung volume and functional residual volume. Moreover, repetitive diving dramatically increased proinflammatory factors and increased the markers of both M1 and M2 macrophages. HCH inhalation improved lung function to a certain extent, and significantly reduced the pro-inflammatory factors. These effects were related to the reduction of M1 macrophages as well as the increase in M2 macrophages. This study indicates that repetitive diving damages lung function and activates lung macrophages, resulting in lung inflammation. HCH inhalation after each diving may be a promising strategy for the prevention of DILI.

Effect of Mixed Inoculation of Arbuscular Mycorrhizal on Growth and Chemical Composition of Aucklandia lappa Seedlings / 中国实验方剂学杂志

Objective:To explore the synergistic effect of arbuscular mycorrhizal（AM） fungi mixed inoculation on the growth，physiological and biochemical characteristics，root biomass and terpenoid component accumulation of Aucklandia lappa seedlings，so as to provide a reference for the combination and application of the dominant complementary effect mycorrhizal fungi. Method:The effect of different AM fungi combined with inoculation on the root mycorrhizal infection rate，plant growth，physiological and biochemical characteristics，root biomass，costunolide and dehydrocostus lactone of A. lappa seedlings were determined by pot inoculation at room temperature. Result:It was found that AM fungi could form good mycorrhizal symbiosis with the roots of A. lappa.The formation of mycorrhizal symbiosis system could increase the chlorophyll content of A. lappa leaves，increase the activities of catalase（CAT），peroxidase （POD），superoxide dismutase （SOD），reduce the content of malondialdehyde（MDA），and promote photosynthesis of A. lappa. Compared with CK group，AM fungus treatment could significantly promote the accumulation of costunolide and dehydrocostus lactone，and the accumulation of its metabolites，costunolide and dehydrocostus lactone，into roots during the symbiotic cultivation of A. lappa seedlings，indirectly improving the quality of medicines and yield of alantolactone. Conclusion:Inoculation of AM fungi can improve the root mycorrhizal viability，increase the absorption of nutrients and promote the growth of woody incense.The mixed inoculation treatment of S2，S4 and S5 had the best mycorrhizal effect in artificial cultivation，and the growth and medicinal quality of A. lappa were the best，which provided technical support for the application and popularization of A. lappa mycorrhizal biotechnology.

Effect of warming acupuncture on uterine blood perfusion in patients with failed high-quality freeze-thawed embryo transfer / 中国针灸

OBJECTIVE@#To observe the effect of warming acupuncture on uterine blood perfusion in the patients with failed high-quality freeze-thawed embryo transfer (FET) and explore its effect mechanism on the improvement of clinical pregnancy rate after re-tranfer.@*METHODS@#A total of 72 patients of failed high-quality FET were randomized into an observation group and a control group, 36 cases in each one. In the observation group, after the menstrual period ended, warming acupuncture started at the acupoints located on the abdomen, e.g. Qihai (CV 6), Guanyuan (CV 4), Zhongji (CV 3) and Qugu (CV 2) and those on the lumbar sacral region, e.g. Shenshu (BL 23), Mingmen (GV 4) and Yaoyangguan (GV 3), 50 min in each treatment, once daily, at the interval of 1 day after 4-day treatment. The treatment was discontinued till the patients were at the ovulatory stage. In the control group, capsules were taken orally and continuously after the end of menstrual period, 3 capsules each time, three times a day and stopped at the ovulatory stage. The treatment of one menstrual cycle was taken as one course and the treatment for 3 menstrual cycles was required. Before and after treatment, the uterine artery pulsation index (PI), endometrial thickness, endometrial type, uterine blood perfusion, the recovery time of sufficient uterine blood flow, the endomentrial receptivity (ER) during the implantation window period and the clinical pregnancy rate were observed in the two groups.@*RESULTS@#After treatment, the endometrial thickness was increased and PI decreased obviously in the two groups (<0.05) and PI in the observation group was lower than that in the control group (<0.05). After treatment, the proportion of type a and type A of endometrium was increased markedly in the two groups (<0.05) and the proportion in the observation group was higher than the control group (<0.05). After treatment, the case proportion of sufficient uterine blood flow was increased obviously in the two groups (<0.05) and the value in the observation group was higher than the control group [83.3% (30/36) vs 69.4% (25/36), <0.05]. After treatment, the proportion of ER during the implantation window period was increased remarkably in the two groups (<0.05) and the value in the observation group was higher than the control group [72.2% (26/36) vs 50.0% (18/36), <0.05]. The recovery time of sufficient uterine blood flow in the observation group was shorter than the control group (<0.05) and the clinical pregnancy rate was higher than the control group [47.2% (17/36) vs 33.3% (12/36), <0.05].@*CONCLUSION@#Warming acupuncture enhances uterine blood perfusion and improves uterine endometrial receptivity so that the clinical pregnancy rate is increased after re-transfer in the patients with failed high-quality freeze-thawed embryo transfer.

Prognostic value of free triiodothyronine in patients with dilated cardiomyopathy / 中华医学杂志(英文版)

BACKGROUND@#The association between free triiodothyronine (FT3) and long-term prognosis in dilated cardiomyopathy (DCM) patients has not been evaluated. The purpose of this study was to determine whether the level of FT3 could provide prognostic value in patients with DCM.@*METHODS@#Data of consecutive patients diagnosed with DCM were collected from October 2009 to December 2014. FT3 was measured by fluoroimmunoassay. Other biochemical markers, such as free thyroxin (FT4), thyroid-stimulating hormone, red blood cell, hemoglobin, blood urea nitrogen, and serum creatinine, were tested at the same time. Follow-up was performed every 3 months. The primary endpoint was all-cause mortality. Pearson analysis was used to evaluate the correlation of FT3 and other lab metrics with DCM patients' prognosis. The association of long-term mortality in DCM and FT3 was compared using Cox hazards model.@*RESULTS@#Data of 176 patients diagnosed with DCM were collected. Of them, 24 patients missed FT3 values and six patients were lost to follow-up. Altogether, data of 146 patients were analyzed. During the median follow-up time of 79.9 (53.5-159.6) months, nine patients lost, 61 patients died (non-survival group), and 85 patients survived (survival group). FT3 was significantly lower in non-survival group than that in survival group (3.65 ± 0.83 pmol/L vs. 4.36 ± 1.91 pmol/L; P = 0.003). FT3 also showed a significantly positive correlation with red blood cell and hemoglobin, negatively correlated with age, blood urea nitrogen and serum creatinine (P < 0.05), respectively. Patients in the group of lower FT3 levels (FT3 ≤3.49 pmol/L) suffered from a higher risk of all-cause mortality (P for log-rank = 0.001). In multivariate Cox regression analysis, FT3 level was significantly associated with all-cause mortality (hazard ratio: 0.70, 95% confidence interval 0.52-0.95, P for trend = 0.021).@*CONCLUSION@#Low levels of FT3 were associated with increased all-cause mortality in patients with DCM.

Neuroprotective effects of kukoamine A against rotenone-induced neurotoxicity in PC12 cells / 中草药

Objective: To investigate the neuroprotective effects of kukoamine A (KuA) on rotenone-induced PC12 cells damage and to preliminary verify its potential action mechanisms. The present study may lay the foundation for finding leading compounds with anti-Parkinson's disease (PD) effects. Methods: A PD model induced by rotenone was established in vitro, and MTT, LDH, and Hoechst33342 staining were used for preliminary confirmation of KuA resistance to rotenone-induced PC12 cell injury in vitro. The effects of KuA on superoxide dismutase (SOD) activity, malondialdehyde (MDA) and reactive oxygen species (ROS) content, and mitochondrial membrane potential (MMP) were investigated by colorimetric method and fluorescence staining, respectively. Western blotting was applied to explore the underlying mechanisms of protective effects of KuA against rotenone-induced PC12 cells damage. Results: The PC12 cell viability was significantly decreased after exposure to 0.5 μmol/L rotenone, whereas pretreatment with different concentrations of KuA could attenuate the cell injury induced by rotenone. Compared with the rotenone-treated group, KuA could decrease the ROS production and MDA level, while increase the SOD activity. In addition, KuA could effectively increase the MMP, decrease the cytochrome c release and the Bax/Bcl-2 ratio as well as inhibit caspase-3, caspase-9, and α-synuclein protein expressions. Conclusion: KuA showed neuroprotective ability on rotenone-induced PC12 cells PD model and the potential protective mechanisms of KuA can be related with inhibition of ROS generation, protection of MMP, regulation of protein expressions involved in the mitochondrial apoptosis pathway and reduction of α-synuclein expression.

Effect of electroacupuncture at Shaoze (SI 1) on breast milk volume and composition in postpartum hypogalactia / 中国针灸

OBJECTIVE@#To observe the effect of electroacupuncture at Shaoze (SI 1) on breast milk volume and nutrient composition in postpartum hypogalactia.@*METHODS@#A total of 62 women with postpartum hypogalactia were randomized into an observation group (31 cases, 3 cases dropped off) and a control group (31 cases, 3 cases dropped off). Electroacupuncture was exerted at Shaoze (SI 1) in the observation group and at Shangyang (LI 1) in the control group, 10 Hz in frequency, 30 min each time, once a day. The treatment for 5 times as one course and 3 courses of treatment were required totally. Separately, before treatment and at the end of 1 course and 3 courses of treatment, the breast milk volume was measured and the composition was analyzed. The breast milk volume, nutrient composition (lactose, fat and protein), breast milk energy and density were observed in the two groups. After treatment, the clinical effect was compared between the two groups.@*RESULTS@#In the observation group, after 1 course of treatment, the breast milk volume and the values of lactose and protein in the breast milk were increased as compared with those before treatment, the breast milk energy and density were increased as compared with those before treatment (all <0.05). After 3 courses of treatment, the breast milk volume and the values of nutrient composition (lactose, fat and protein) were improved as compared with those before treatment, and the breast milk energy and density were increased obviously as compared with those before treatment in the observation group (all <0.05). In the control group, after 1 course and 3 courses of treatment, only breast milk volume was increased obviously as compared with that before treatment (both <0.05). After 1 course of treatment, the nutrient composition (lactose and protein), breast milk energy and density in the observation group were higher than those in the control group (all <0.05). After 3 courses of treatment, the levels of breast milk volume, nutrient composition (lactose, fat and protein), breast milk energy and density in the observation group were all higher than those in the control group (all <0.05). The effective rate was 92.9% (26/28) in the observation group, which was higher than 17.9% (5/28) in the control group (<0.05).@*CONCLUSION@#Electroacupuncture at Shaozhe (SI 1) increases breast milk volume in patients with postpartum hypogalactia and promotes the production of the nutrient composition in breast milk, as well as the breast milk energy and density.

Effect of wheat-grain moxibustion at Yinbai (SP 1) on the menstrual period prolongation after IVF-ET down-regulation treatment / 中国针灸

OBJECTIVE@#To compare the clinical effect between wheat-grain moxibustion at Yinbai (SP 1) and oral administration of dydrogesterone tablet for menstrual period prolongation after down-regulation treatment of in vitro fertilization embryo transfer (IVF-ET).@*METHODS@#A total of 54 patients with prolonged menstrual period after down-regulation treatment of IVF-ET were randomly divided into an observation group and a control group, 27 cases in each one. In the observation group, when the menstrual period delayed more than 7 days, the wheat-grain moxibustion at Yinbai (SP 1) was performed, once a day, with an interval of 1 day between two 3-day treatments; when the menstrual blood was cleaned, the ovulation was continued and the eggs were taken. In the control group, when the menstrual period delayed more than 7 days, the oral administration of dydrogesterone tablet was provided, 10 mg each time, twice a day; when the menstrual blood was cleaned, the ovulation was continued and the eggs were taken. The number of days for menstrual blood to be cleaned, the area change of uterine cavity hemorrhage, the morphology of endometrium, the blood supply of endometrium, the number of oocytes obtained, the grade of frozen embryo and the clinical effect were observed between the two groups after treatment.@*RESULTS@#Compared with the control group, the number of days for menstrual blood to be cleaned was shorter in the observation group after treatment (0.05). The cured rate in the observation group was 100.0% (27/27), higher than 33.3% (9/27) in the control group (<0.05).@*CONCLUSION@#The wheat-grain moxibustion at Yinbai (SP 1) could more effectively treat prolonged menstrual period after IVF-ET down-regulation treatment, which is beneficial to the preparation of the endometrium, and has no effect on the oocyte collection and embryo culture.

Interpretation of surgical update in 2018 Japanese Clinical Practice Guidelines for Thyroid Tumors / 中国实用外科杂志

The incidence of thyroid cancer has increased all over the world in recent years,which has become a hot issue of widespread concern.Surgery is an important means for the treatment of thyroid cancer.Standard surgical treatment can effectively improve the prognosis and quality of life of patients,while non-standard surgical treatment can increase the risk of recurrence,reduce the survival rate,and bring serious physiological,psychological and economic burden to patients.In order to standardize the diagnosis and treatment of thyroid cancer and improve the prognosis of patients,many guidelines have been issued at home and abroad.With the application of new therapies and the emergence of new clinical evidences,guidelines are constantly updated in various countries,the most representative of which are the guidelines issued by the American Thyroid Association and the National Comprehensive Cancer Network.In the past,surgeons paid more attention to the European and American guidelines,but little was known about the treatment of thyroid cancer in neighbouring Japan. Following the publication of the first edition of Japanese Clinical Practice Guidelines for Thyroid Tumors in 2010,Japan formally released a revised edition of the old edition of the guidelines in 2018. Compared with the old version,the recommendations of the new version are more comprehensive and accurate,including risk stratification of papillary cancer and indications of primary lesion resection and lymph node dissection in patients with different risk stratification,principles of primary and complementary surgery for follicular carcinoma of different histological types,and principles of treatment for hereditary and sporadic medullary carcinoma,etc.

Analysis of lateral neck lymph node reoperation in papillary thyroid carcinoma / 中国实用外科杂志

OBJECTIVE: To explore the clinical characteristics,and discuss the prevention of lateral neck lymph node reoperation.METHODS: The clinical data of 31 cases of lateral neck lymph node reoperation performed between January2013 and December 2017 in the First Affiliated Hospital of China Medical University were analyed retrospectively.RESULTS: All 31 patients accepted 1 to 3 times lateral neck lymph node dissection,but the extent of lymph node dissection was not described enough clear in 17 cases. Twenty-four of 31 cases were found within 12 months from last operation to abnormal lymph nodes. In imaging diagnosis,the rate of metastasis in level Ⅳ was 58.1%,level Ⅱ(outside the outer edge of internal jugular vein)was 41.9%,trigonum caroticum and level Ⅲ(outside the outer edge of internal jugular vein)were 22.6%,lymph node between sternocleidomastoid and sternohyoid muscle(LNSS)was 12.9%. In pathology after surgery the rate of metastasis at levels Ⅱ,Ⅲ,Ⅳ,Ⅴb,LNSS was 64.0%,81.8%,68.4%,8.3%,13.6% respectively.CONCLUSION: The imaging assessment has significant effects on lateral neck lymph node dissection,within standardized procedure in surgery,which should help reduce the reoperation caused by human factor.

Clinical observation on the therapeutic effect of warm acupuncture on endometrial cavity fluid from in vitro fertilization-embryo transfer / 中国针灸

OBJECTIVE@#To observe the clinical effect of warm acupuncture on endometrial cavity fluid (ECF) from in vitro fertilization-embryo transfer (IVF-ET), and to explore the mechanism of warm acupuncture on ECF.@*METHODS@#Twenty-nine patients who were prepared for IVF-ET from 2016 to 2019 and whose transplantation was cancelled due to ECF found by vaginal B-ultrasound examination were divided into an observation group (14 cases) and a control group (15 cases) according to random number table method. The warm acupuncture was applied at Zhongwan (CV 12), Qihai (CV 6), Guanyuan (CV 4), Zhongji (CV 3), Guilai (ST 29), Zigong (EX-CA 1), Zusanli (ST 36), Sanyinjiao (SP 6) after the end of menstruation in the observation group, the treatment lasted for 60 min, once a day, 5 times as a course, with 2 days interval between the courses and 3 consecutive courses of treatment were given, until the embryo transfer was performed in the IVF assisted pregnancy cycle. After the end of menstruation, fresh leonurus japonicus capsule was given in the control group, 3 times a day, 0.8 g each time, 7 days as a course, and 3 courses of continuous treatment were received, until the embryo transfer was performed in the IVF assisted pregnancy cycle. The changes of ECF before and after treatment, the time required to prepare for embryo transfer during IVF assisted pregnancy cycle, and the clinical outcome of embryo transfer were observed in the two groups.@*RESULTS@#The decrease of ECF in the observation group was more significant than that in the control group (<0.05). The time required for the embryo transfer in the IVF assisted pregnancy cycle in the observation group was shorter than that in the control group (<0.05). The clinical pregnancy rate in the observation group was 42.9% (6/14), which was significantly higher than 26.7% (4/15) in the control group (<0.05).@*CONCLUSION@#Warm acupuncture may improve the clinical pregnancy rate by raising the local temperature of the lower abdomen, accelerating the blood circulation around the uterus and appendages, promoting the absorption of ECF, improving the uterine environment and endometrial receptivity.

Regulatory Effect of Sijunzi Tang and Its Single Herbs on Intestinal Flora in Rats with Spleen Deficiency / 中国实验方剂学杂志

Objective:To investigate the regulatory effect of Sijunzi Tang(SJZT) and its single herbs(Ginseng Radix et Rhizoma, Glycyrrhizae Radix et Rhizoma Praeparata cum Melle, Atractylodis Macrocephalae Rhizoma and Poria) on intestinal flora in spleen-deficient rats. Method:Normal rats were randomly divided into the blank group, model group, Zhengchangsheng granules group, SJZT group and each single herb group, rats were orally administered Sennae Folium decoction to induce diarrhea for ten consecutive days to establish a spleen-deficient model(distilled water for the blank group), then treated with the corresponding drugs for seven consecutive days(distilled water for the blank group and the model group). Fresh feces were collected on pre-modeling(0th day), post-modeling(11th day), and post-treatment(18th day). Short-chain fatty acids(SCFAs) in feces were acidified by sulphuric acid and extracted by diethyl ether, then determined by gas chromatography. The structural change(diversity and similarity) of intestinal flora in feces was analyzed by 16S rDNA-polymerase chain reaction(PCR)-denaturing gel gradient electrophoresis(DGGE) technique. Result:Compared with blank group, the contents of SCFAs as well as diversity and similarity indexes of intestinal flora in feces of all administered groups were significantly decreased on the 11th day(PPth day, compared with model group, the contents of SCFAs as well as diversity and similarity indexes of intestinal flora in feces of Atractylodis Macrocephalae Rhizoma group were significantly increased(PPPPConclusion:Ginseng Radix et Rhizoma, Atractylodis Macrocephalae Rhizoma and Poria are the single herbs responsible for the regulatory effect of SJZT on intestinal flora in spleen-deficient rats, and Atractylodis Macrocephalae Rhizoma may play a major role.

Chemical constituents of coumarins compounds from Notopterygium incisum and their anti-oxidant activity / 中草药

Objective: To investigate the coumarin compounds from Notopterygium incisum and their anti-oxidant activities. Methods The coumarin compounds and their analogues were separated and purified by recrystallization, silica gel column chromatography, Sephadex LH-20 column chromatography, and preparative HPLC. The structure was identified by modern spectroscopy. The isolated compound was tested for anti-oxidant activity by DPPH and ABTS assay. Results Ten compounds were isolated from the dichloromethane extraction layer of 70% ethanol extract, which were identified as bergaptol (1), d-laserpitin (2), falcarindiol (3), phenethyl ferulate (4), selinidin (5), archangelicin (6), notoptol (7), nodakenetin (8), (+)-cis-khellactone (9), and oxypeucedanin hydrate (10). The anti-oxidant activity of these compounds was tested by DPPH and ABTS methods. Conclusion Compounds 2 and 6 are isolated from this plant for the first time. Compounds 1 and 7 have shown the strongest anti-oxidant activity. The structure-activity relationship (SAR) studies revealed the -OH and unsaturated double bond on C-5′ in the aromatic ring significantly improved the anti-oxidant activity than other coumarin compounds.

Silencing of SATB1 inhibits the invasion and migration of tumor stem cells in TE-1 cell line of esophageal squamous cell carcinoma / 中国组织工程研究

BACKGROUND: Recent studies have confirmed that SATB1 is related to the occurrence and development of tumors, but its mechanism in tumor metastasis is unclear. OBJECTIVE: To observe the effects of specific interference of SATB1 gene expression on esophageal carcinoma cell line TE-1 stem cell invasion and migration. METHODS: p75NTRpositive cells and p75NTRnegative cells were isolated from human esophageal carcinoma TE-1 cell lines by immunomagnetic beads. The characteristics of p75NTRpositive cells were verified by in vitro proliferation and clone formation experiments. The p75NTRpositive tumor stem cells in logarithmic growth period were taken. In the transfection group, SATB1 gene siRNA was transfected into the cells by Lipofectamine 2000 liposome method. At the same time, the p75NTRpositive cells transfected with empty vector were used as control. After 72 hours of transfection, the expression of SATB1 in the cells was detected by western blot. Cell migration and invasion abilities were detected by Transwell assay. Expressions of matrix metalloproteinase 2/9 at mRNA and protein levels were detected by western blot and semi-quantitative RT-PCR, respectively. RESULTS AND CONCLUSION: Compared with p75NTRnegative cells, the proliferation of p75NTRpositive cells increased significantly after 3, 5, 7 days of culture (P < 0.05). The clone formation rate of p75NTRpositive cells was significantly higher than that of p75NTRnegative cells (P <0.0.5). After 72 hours of transfection, the expression of SATB1 in the transfection group was significantly lower than that in the control group (P < 0.05). The ability of migration and invasion in the transfection group was significantly lower than that in the control group (P < 0.05). Expressions of matrix metalloproteinase 2/9 mRNA and protein in the transfection group were significantly lower than those of the control group (P < 0.05). In conclusion, siRNA interference with SATB1 gene can reduce the invasion and migration ability of TE-1 tumor stem cells in esophageal carcinoma cell line through down-regulating the expression of matrix metalloproteinase 2/9.

Case-control study on spinal leveraging manipulation and medicine for the treatment of degenerative scoliosis / 中国骨伤

<p><b>OBJECTIVE</b>To compare clinical effects of spinal leveraging manipulation and medicine for the treatment of degenerative scoliosis in pain and function.</p><p><b>METHODS</b>From July 2010 to June 2013, 38 patients with degenerative scoliosis were randomly divided into spinal leveraging manipulation group and medicine group by coin tossing. In manipulation group, there were 9 males and 11 females aged from 58 to 74 years old with an average of (66.63±7.73), the courses of diseases ranged from 3 to 8 months with an average of (5.65±2.58), spinal leveraging manipulation(following meridian to straighten tendon,relieving spasm, osteopathy and massage, clearing and activating the channels and collaterals) were performed for 30 min, once a day, 4 days for a period treatment, totally 9 courses. In medicine group, there were 8 males and 10 females aged from 57 to 70 years old with an average of (63.51±6.61) the courses of diseases ranged from 3 to 5 months with an average of (4.82±1.43), celecoxib with eperisone hydrochloride were orally taken, 4 days for a period treatment, totally 9 courses. VAS score, Cobb angle and ODI score were measured.</p><p><b>RESULTS</b>After treatment, VAS score in manipulation group was (5.38±0.99), (6.36±1.31) in medicine group,and had significant meaning (t=2.618, P<0.05); there was significant differences in Cobb angle between manipulation group (16.51±4.89)° and medicine group (19.85±5.03) °(t=2.074,P<0.05); and had obviously meaning in ODI score between manipulation group (20.20±2.93) and medicine group (26.01±3.11) (t=5.592, P<0.05).</p><p><b>CONCLUSION</b>Spinal leveraging manipulation for degenerative scoliosis could regulate muscle balance on both side of spine, correct coronal imbalances in spine, recover normal sequence of spine, reduce and remove opperssion and stimulation of nerve root, relieve pain in leg and waist and further improve quality of life.</p>

Current situation of awareness and use of banned pesticides among vegetable greenhouse farmers in a town of Ledu County, China / 中华劳动卫生职业病杂志

<p><b>OBJECTIVE</b>To investigate the awareness and use of banned pesticides among vegetable greenhouse farmers in a town of Ledu County, Qinghai Province, China and to provide a basis for the management and control of banned pesticides.</p><p><b>METHODS</b>Local residents who lived in a town of Ledu County for more than 5 years were selected as subjects in August 2012. A questionnaire survey was conducted in 267 vegetable greenhouse farmers who were selected from five villages of the town by cluster random sampling.</p><p><b>RESULTS</b>Of the 267 subjects, 249 (93.26%) completed and returned the questionnaires. Eighty-seven (34.9%) of the 249 subjects were aware of banned pesticides, and the banned pesticide awareness rate varied significantly among the subjects with different education levels (χ(2) = 11.061, P = 0.011). Only education level entered the regression equation in non-conditional logistic regression analysis. Only five (2.0%) of the 249 subjects knew the banned pesticides as well as the details. All the 249 subjects used banned pesticides to varying degrees in the past 5 years. Only 9.0% (17/189) of the vegetable greenhouse farmers knew the time pesticides were initially banned in China.</p><p><b>CONCLUSION</b>The banned pesticide awareness rate is relatively low in the town of Ledu County, and this rate is influenced by education level. It is needed to spread the knowledge and hazards of banned pesticides.</p>

Effect of Feitai Capsule () on quality of life and progression-free survival of patients with unresectable non-small cell lung cancer / 中国结合医学杂志

<p><b>OBJECTIVE</b>To examine the effect of a Chinese medicinal herbal formula (Feitai Capsule, ) on the quality of life (QOL) and progression-free survival (PFS) of patients with unresectable non-small cell lung cancer (NSCLC).</p><p><b>METHODS</b>Sixty-two patients were randomly divided into the treatment group (31 cases) and the control group (31 cases). For the treatment group, 4 capsules (1.2 g/capsule) of Feitai Capsule were administered 3 times a day after meals for 3 weeks; then no drug was administered for 1 week. This schedule was continued for at least 3 more cycles (12 weeks totally). If there were no obvious toxic reactions, the treatment was extended. The patients were evaluated at least once every 8 weeks until progressive disease (PD). For the control group, the regular follow-up and evaluation were performed at least once every 8 weeks until PD. Clinical symptoms, objective response, physical constitution and energy, QOL, and PFS were evaluated regularly. Analysis of variance (ANOVA), a non-parametric test, and analysis of covariance were used to compare clinical features, amelioration of clinical symptoms, physical constitution and energy, and QOL. Kaplan-Meier analysis was used to compare the two-group PFS.</p><p><b>RESULTS</b>Sixty patients finished the final evaluation, with 30 patients in each group. Baseline characters between groups were not significantly different (P>0.05). The control group had a 36.7% improvement in clinical symptoms, while the treatment group had a 73.3% improvement. This difference was statistically significant (Z= -2.632, P=0.008). The control group had a 26.7% improvement in the Karnofsky performance status (KPS), while the treatment group had a 53.4% improvement. This was also significantly different (Z=-2.182, P=0.029). A comparative analysis indicated a positive correlation (r=0.917, P<0.001). Compared with the control group, QOL in the treatment group was significantly improved, except in the social/family condition and doctor-patient relationship indicators. The PFS of the treatment group and control group were 6.23 months and 4.67 months, respectively (P=0.048).</p><p><b>CONCLUSION</b>Feitai Capsule, a Chinese medicinal herbal treatment could improve the QOL and extend the PFS of the unresectable NSCLC patients.</p>