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Can intravesical bacillus Calmette-Guérin reduce recurrence in patients with non-muscle invasive bladder

null

《医学前沿（英文）》 2014年 第8卷 第2期   页码 241-249 doi: 10.1007/s11684-014-0328-0

摘要：

Approximately 70% of newly diagnosed bladder tumors are non-muscle invasive bladder cancer (NMIBC). NMIBC accounts for approximately 80% of total bladder cancer cases. Bacillus Calmette-Guérin (BCG) instillation and maintenance is considered as the standard adjuvant treatment for superficial bladder cancer. A number of randomized studies have focused on the benefit of maintenance therapy following initial BCG induction. To provide further insights into the effect of intravesical instillation on recurrence in patients with NMIBC, we analyzed this relationship by conducting an updated detailed meta-analysis. Evidence suggested that adjuvant intravesical BCG with maintenance treatment is significantly effective for the prophylaxis of tumor recurrence in patients with NMIBC.

关键词： non-muscle invasive bladder cancer     bacillus Calmette-Guérin (BCG)     meta-analysis    

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Testing of tuberculosis infection among Chinese adolescents born after terminating the Bacillus Calmette--Guérin booster vaccination: subgroup analysis of a population-based cross-sectional study

null

《医学前沿（英文）》 2017年 第11卷 第4期   页码 528-535 doi: 10.1007/s11684-017-0573-0

摘要：

The prevalence of tuberculosis infection among adolescents born after terminating the Bacillus Calmette–Guérin (BCG) booster vaccination in China was estimated using tuberculin skin testing (TST) and QuantiFERON-TB Gold assay (QFT) to investigate the influence of neonatal BCG vaccination on the performance of TST. Data analysis was conducted for 2831 eligible participants aged 5–15 years from the baseline survey of a population-based multi-center prospective study. The prevalence rates of TST (induration≥10 mm) and QFT positivity were 9.3% (264/2827) and 2.5% (71/2831), respectively. The rate of QFT indeterminate result was 2.2% (62/2831). The overall agreement between TST and QFT was low (concordance= 88.0%; κ coefficient= 0.125). Only TST was positively associated with BCG vaccination with an adjusted odds ratio of 1.71 [95% confidence interval, 1.26–2.31]. A history of close contact with patients of active TB was significantly associated with positivity for TST and QFT. Our results suggested that BCG neonatal vaccination still affects TST performance, and a two-step approach might be considered for TB infection testing among adolescents in China.

关键词： tuberculin skin test     interferon-γ release assays     adolescent     agreement    

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A meta-analysis of randomized trials of maintenance bacillus Calmette-Guerin instillation efficacy against

PAN Jiangang, ZHOU Xing, CHEN Zhiguang, HAN Ruifa

《医学前沿（英文）》 2008年 第2卷 第3期   页码 259-263 doi: 10.1007/s11684-008-0049-3

摘要： Meta-analysis was used to determine whether maintenance intravesical bacillus Calmette-Guerin (BCG) could reduce recurrence after transurethral resection of tumor 1 grade 3 (T1G3) superficial bladder cancer. All available published data of randomized clinical trials comparing transurethral resection plus intravesical BCG to either resection alone or resection plus another treatment on the treatment results in patients with superficial bladder cancer of T1G3 were selected for analysis. Both the fixed effects model and random effects model were applied, and the odds ratio () with its 95% confidence interval (CI) was used as the effect size estimate. Sensitivity analysis and publication bias determination were performed by funnel plots and comparing s of different models. Within the follow-up period, 375 of 915 (41.0%) BCG-treated patients and 332 of 733 (45.3%) non-BCG-treated patients developed tumor recurrence. In the combined results, a statistically significant difference in the s for tumor recurrence between the two treatment groups was found (randomized model combined effect 0.58, 95% CI 0.41 to 0.83, = 0.003). The stratified meta-analysis did not show any statistically significant confounding effects on the results when stratified by BCG strains. The randomized model combined effect of Pasteur F and other strains were 0.50 (95% CI 0.26 to 0.95, = 0.04) and 0.63 (95% CI 0.40 to 0.99, = 0.04), respectively. Therefore, we came to the conclusion that adjuvant maintenance instillation BCG combined with transurethral resection of bladder tumor (TURBT) is an effective conservative treatment for preventing recurrence of T1G3 bladder cancer.
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Study of recombinant human IFN-α-2b bacilli Calmette–Guerin activated killer cells and against bladder

FAN Xiaodong, HAN Ruifa

《医学前沿（英文）》 2007年 第1卷 第4期   页码 377-380 doi: 10.1007/s11684-007-0073-8

摘要： Presently, one of the most potent immunotherapies is the application of bacillus Calmette Guerin (BCG) to prevent recurrences of the superficial bladder cancer. Despite its successful use, nonresponders and certain side effects remain a major obstacle. Therefore, current studies aim at developing recombinant BCG (rBCG) strains secreting Th1-like cytokines to improve the effectiveness of the therapy. In this study, a new type of rBCG strain constructed by Tianjin institute of Urology was tested for its immunostimulatory capacity . Peripheral blood monocytes (PBMC) were stimulated by recombinant BCG and transformed into bacilli Calmette–Guerin activated killer (BAK) cells, and the effect of anticancer BAK cells was studied. Recombinant IFN--2b-BCG, wild-type BCG (wBCG), wild-type BCG and IFN--2b were coincubated with PBMCs respectively , and the proliferation of PBMC was detected with MTT in different time. BAK cells have the ability to kill bladder tumor cells, and the antitumor activity of effecter cells was determined by LDH release assay. The result of MTT showed that the proliferation of PBMC in the recombinant BCG group was more powerful than in the other two groups (<0.05). The result of LDH release assay showed that the antitumor activity of BAK cells stimulated by Recombinant BCG was the highest in all groups. We conclude that the recombinant BCG can activate more PBMCs to anti-bladder cancer than wild-type BCG does.

关键词： Urology     powerful     2b-BCG     Tianjin institute     wild-type    

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Telomeric impact of conventional chemotherapy

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《医学前沿（英文）》 2013年 第7卷 第4期   页码 411-417 doi: 10.1007/s11684-013-0293-z

摘要：

The increased level of chromosome instability in cancer cells, leading to aneuploidy and gross chromosomal rearrangements, is not only a driving force for oncogenesis but also can be the Achille’s heel of the disease since many chemotherapies (CT) kill cells by inducing a non-tolerable rate of DNA damage. A wealth of published evidence showed that telomere stability can be more affected than the bulk of the genome by several conventional antineoplasic drugs. These results raise the interesting possibility that CT with genotoxic drugs preferentially target telomeres. In agreement with this view, accelerated shortening of telomere length has been described in blood lineage cells following high-dose CT (stem cell transplantation) or non-myeloablative CT. However, almost nothing is known on the consequences of this shortening in terms of telomere stability, senescence and on the development of second cancers or post-treatment aging-like syndromes in cancer survivors (cognitive defect, fertility impairment, etc.). In this article, we propose: (1) telomeres of cancer cells are preferential genomic targets of chemotherapies altering chromosome maintenance; (2) telomere functional parameters can be a surrogate marker of chemotherapy sensitivity and toxicity; (3) the use of anti-telomere molecule could greatly enhance the sensitivity to standards chemotherapies.

关键词： telomere     antineoplasic drugs     conventional chemotherapies    

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Characterization of Bacillus amyloliquefacien contaminating 75% alcohol disinfectant

ZHANG Wanming, YUAN Yuesha, BIAN Cangli, TU Xianyu, ZHANG Wen, HUANG Huqiang, WANG Lan

《医学前沿（英文）》 2008年 第2卷 第1期   页码 113-116 doi: 10.1007/s11684-008-0021-2

摘要： The clinical characterization of Bacillus amyloliquefacien contaminating 75% alcohol disinfectants were studied. The bacteria were cultured and observed by using bacterial examination under the hospital infection monitor. According to the regulations, the resistance of bacterial to physical and chemical factors was tested. Drug sensitivity tests for 20 commonly used medicines were carried out using a K-B method. The bacterial plasmids were analyzed using the Birnboim method. The bacteria were found after being cultured in the clinically-used 75% alcohol disinfectant fluid. Their total number was more than 800 cfu/mL and they were identified as Bacillus amyloliquefacien. The bacteria were also found to be resistant to boiling for 5 min. It grew well in 95% alcohol disinfectant and was insensitive to 84 disinfectant fluids containing chlorine (1000 mg/L) and such disinfectants as ozone. They were able to be sterilized better through routine ultraviolet exposure for 30 min or gas pressure. The bacteria contained a 2.5 kb plasmid and were sensitive to 13 drugs and insensitive to 7 drugs of the 20 drugs tested. It was suggested that alcohol disinfectant fluid was easily contaminated by Bacillus amyloliquefacien, and the bacteria was resistant to disinfectant fluids such as alcohol and 84 disinfectants
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Use of dry yeast cells as a cheap nitrogen source for lactic acid production by thermophilic

Kim Yng Ooi, Jin Chuan Wu

《化学科学与工程前沿（英文）》 2015年 第9卷 第3期   页码 381-385 doi: 10.1007/s11705-015-1534-2

摘要： Dry yeast cells (DYC) were used as a cheap nitrogen source to replace expensive yeast extract (YE) for L-lactic acid production by thermophilic . Cassava starch (200 g·L ) was converted to L-lactic acid by simultaneous saccharification and fermentation using WCP10-4 at 50 °C in the presence of 20 g·L of DYC, giving 148.1 g·L of L-lactic acid at 27 h with a productivity of 5.5 g·L ·h and a yield of 92%. In contrast, 154.4 g·L of lactic acid was produced at 24 h with a productivity of 6.4 g·L ·h and a yield of 96% when equal amount of YE was used under the same conditions. Use of pre-autolyzed DYC at 50 °C for overnight slightly improved the lactic acid titer (154.5 g·L ) and productivity (7.7 g·L ·h ) but gave the same yield (96%).

关键词： L-lactic acid     thermophilic strain     Bacillus coagulans     dry yeast cells     autolysis     fermentation    

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Chromium phytoextraction and physiological responses of the hyperaccumulator Swartz to plant growth-promoting rhizobacterium inoculation

《环境科学与工程前沿（英文）》 2023年 第17卷 第1期 doi: 10.1007/s11783-023-1609-0

摘要：

● Improved Cr phytoextration efficiency was achieved by B. cereus inoculation.

关键词： Hexavalent chromium     Hyperaccumulator     Rhizobacteria     Leersia hexandra Swartz     Bacillus cereus     Consortia    

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解淀粉芽孢杆菌发酵红小豆的理化特性和生物活性 Article

吴珊, 卢帅, 刘军, 杨绍青, 闫巧娟, 江正强

《工程（英文）》 2021年 第7卷 第2期   页码 219-225 doi: 10.1016/j.eng.2020.10.010

摘要：

本研究采用解淀粉芽孢杆菌发酵红小豆（Vigna umbellata）,并评价了发酵红小豆的理化特性和生物活性。以纤溶酶活性为指标优化了发酵条件，在最适发酵条件下，纤溶酶活性最高达78.0 FU∙g-1（4890 IU∙g-1，纤维蛋白平板法）。发酵红小豆中多肽含量（2.1~10.9 g∙100 g-1）、总酚含量（116.7~388.5 mg没食子酸∙100 g-1）、总黄酮含量（235.5~354.3 mg芦丁∙100 g-1）、花青素含量（20.1~47.1 mg∙100 g-1）和超氧化物歧化酶活性（55.3~263.6 U∙g-1）显著增加。红小豆经发酵后的2,2-二苯基-1-苦肼基（DPPH）和2,2-联氮双（3-乙基苯并噻唑啉-6-磺酸）二铵盐（ABTS）自由基清除活性和铁离子还原抗氧化能力（FRAP）较未发酵的红小豆提高1.9~4.8倍。此外，发酵红小豆的二肽基肽酶Ⅳ（DPP-Ⅳ）抑制活性、α-葡萄糖苷酶抑制活性和抗凝血活性显著提高。解淀粉芽孢杆菌发酵红小豆具有多种功能活性，对开发预防血栓性疾病的功能食品具有重要意义。

关键词： 固态发酵     红小豆     解淀粉芽孢杆菌     抗血栓活性     抗氧化活性     降血糖活性    

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Roles of acid-producing bacteria in anaerobic digestion of waste activated sludge

Sijia Ai, Hongyu Liu, Mengjie Wu, Guangming Zeng, Chunping Yang

《环境科学与工程前沿（英文）》 2018年 第12卷 第6期 doi: 10.1007/s11783-018-1050-y

摘要：

Three acid-producing strains were isolated and identified.

The isolated bacteria accelerated the anaerobic digestion processes.

Bacillus coagulans improved TCOD removal, VS removal and biogas production.

The optimal inoculum concentration of Bacillus coagulans AFB-1 was 30%.

关键词： Anaerobic digestion     Waste activated sludge     Acid-producing bacteria     Bacillus coagulans    

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Experimental study on the efficacy of Fuganling granula on protecting against immunological hepatic injury

Yanli LIU, Rong LIU, Cheng ZHEN, Quanfang GUO, Liping WU, Zhaoxi DING, Yushun BI, Zhiyu LIU

《医学前沿（英文）》 2009年 第3卷 第1期   页码 91-95 doi: 10.1007/s11684-009-0011-z

摘要： To study the efficacy of Fuganling granula (FGL, 复肝灵颗粒) in treating mouse immunological hepatic injury that was caused by Bacille Calmette Guerin (BCG) and lipopolysaccharide (LPS), a total of 60 mice were adopted, among which, 50 mice were given intraperitoneal injection with BCG and LPS to establish an immunological liver injury model and then were randomly divided into 5 groups (10 mice/group): 4 groups received treatment of FGL orally at the doses of 100 mg/kg (high-dosage), 50 mg/kg (middle-dosage), 25 mg/kg (low-dosage) and bifendate orally at the dose of 80 mg/kg, respectively. One group was treated with distilled water orally. The remaining 10 mice were given distilled water intraperitoneally as the normal control group. The indices of thymus, liver and spleen, and the activities of the alanine aminotransferase (ALT), aspartate aminotransferase (AST) in the serum were detected. Compared to the normal rat, the model group’s thymus index decreased significantly. The liver index and spleen index increased significantly. The activities of serum ALT and AST increased significantly (all < 0.01). Compared to the model control group, the group treated with FGL in high-dosage, middle-dosage or low-dosage can decrease the activities of ALT and AST and the group treated with FGL in high-dosage and middle-dosage can increase the thymus index significantly ( < 0.01). This experiment established the immunological liver injury model successfully and found that FGL has a remarkably protective effect on this kind of immunological hepatic injury.

关键词： Fuganling granula     immunological liver injury     bacille calmette guerin     lipopolysaccharide     mice    

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Effect of calcium lactate on compressive strength and self-healing of cracks in microbial concrete

Kunamineni VIJAY, Meena MURMU

《结构与土木工程前沿（英文）》 2019年 第13卷 第3期   页码 515-525 doi: 10.1007/s11709-018-0494-2

摘要： This paper presents the effect on compressive strength and self-healing capability of bacterial concrete with the addition of calcium lactate. Compared to normal concrete, bacterial concrete possesses higher durability and engineering concrete properties. The production of calcium carbonate in bacterial concrete is limited to the calcium content in cement. Hence calcium lactate is externally added to be an additional source of calcium in the concrete. The influence of this addition on compressive strength, self-healing capability of cracks is highlighted in this study. The bacterium used in the study is and was added to both spore powder form and culture form to the concrete. spore powder of 2 million cfu/g concentration with 0.5% cement was mixed to concrete. Calcium lactates with concentrations of 0.5%, 1.0%, 1.5%, 2.0%, and 2.5% of cement, was added to the concrete mixes to test the effect on properties of concrete. In other samples, cultured with a concentration of 1×10 cells/mL was mixed with concrete, to study the effect of bacteria in the cultured form on the properties of concrete. Cubes of 100 mm×100 mm×100 mm were used for the study. These cubes were tested after a curing period of 7, 14 and 28 d. A maximum of 12% increase in compressive strength was observed with the addition of 0.5% of calcium lactate in concrete. Scanning electron microscope and energy dispersive X-ray spectroscopy examination showed the formation of ettringite in pores; calcium silicate hydrates and calcite which made the concrete denser. A statistical technique was applied to analyze the experimental data of the compressive strengths of cementations materials. Response surface methodology was adopted for optimizing the experimental data. The regression equation was yielded by the application of response surface methodology relating response variables to input parameters. This method aids in predicting the experimental results accurately with an acceptable range of error. Findings of this investigation indicated the influence of added calcium lactate in bio-concrete which is quite impressive for improving the compressive strength and self-healing properties of concrete.

关键词： calcium lactate     bacillus subtilis     compressive strength     self-healing of cracks    

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Climate change and China’s mega urban regions

Chaolin GU, Sunsheng HAN

《结构与土木工程前沿（英文）》 2010年 第4卷 第4期   页码 418-430 doi: 10.1007/s11709-010-0075-5

摘要： China’s mega urban regions are focal points of economic development and environmental concerns. This paper positions four mega urban regions (i.e., the Yangtze River Delta, the Pearl River Delta, the Bohai Bay Area, and the South-eastern Fujian Province) along China’s coast into the national economy and elaborates their development challenges and planning innovations. Mega urban regions in China are spatial consequences of rapid economic transition. They deserve close scrutiny and demands for innovative planning responses in order to maintain their key role in driving economic growth but limiting their greenhouse gas emission.

关键词： climate change     mega urban region     urban planning    

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Energy internet technology: modeling, optimization and dispatch of integrated energy systems

Shilie WENG, Chenghong GU, Yiwu WENG

《能源前沿（英文）》 2018年 第12卷 第4期   页码 481-483 doi: 10.1007/s11708-018-0604-9

摘要：
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Reconfigurable manufacturing systems: Principles, design, and future trends

Yoram KOREN, Xi GU, Weihong GUO

《机械工程前沿（英文）》 2018年 第13卷 第2期   页码 121-136 doi: 10.1007/s11465-018-0483-0

摘要：

Reconfigurable manufacturing systems (RMSs), which possess the advantages of both dedicated serial lines and flexible manufacturing systems, were introduced in the mid-1990s to address the challenges initiated by globalization. The principal goal of an RMS is to enhance the responsiveness of manufacturing systems to unforeseen changes in product demand. RMSs are cost-effective because they boost productivity, and increase the lifetime of the manufacturing system. Because of the many streams in which a product may be produced on an RMS, maintaining product precision in an RMS is a challenge. But the experience with RMS in the last 20 years indicates that product quality can be definitely maintained by inserting in-line inspection stations. In this paper, we formulate the design and operational principles for RMSs, and provide a state-of-the-art review of the design and operations methodologies of RMSs according to these principles. Finally, we propose future research directions, and deliberate on how recent intelligent manufacturing technologies may advance the design and operations of RMSs.

关键词： reconfigurable manufacturing systems     responsiveness     intelligent manufacturing    

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标题 作者 时间 类型 操作

Can intravesical bacillus Calmette-Guérin reduce recurrence in patients with non-muscle invasive bladder

null

期刊论文

Testing of tuberculosis infection among Chinese adolescents born after terminating the Bacillus Calmette--Guérin booster vaccination: subgroup analysis of a population-based cross-sectional study

null

期刊论文

A meta-analysis of randomized trials of maintenance bacillus Calmette-Guerin instillation efficacy against

PAN Jiangang, ZHOU Xing, CHEN Zhiguang, HAN Ruifa

期刊论文

Study of recombinant human IFN-α-2b bacilli Calmette–Guerin activated killer cells and against bladder

FAN Xiaodong, HAN Ruifa

期刊论文

Telomeric impact of conventional chemotherapy

null

期刊论文

Characterization of Bacillus amyloliquefacien contaminating 75% alcohol disinfectant

ZHANG Wanming, YUAN Yuesha, BIAN Cangli, TU Xianyu, ZHANG Wen, HUANG Huqiang, WANG Lan

期刊论文

Use of dry yeast cells as a cheap nitrogen source for lactic acid production by thermophilic

Kim Yng Ooi, Jin Chuan Wu

期刊论文

Chromium phytoextraction and physiological responses of the hyperaccumulator Swartz to plant growth-promoting rhizobacterium inoculation

期刊论文

解淀粉芽孢杆菌发酵红小豆的理化特性和生物活性

吴珊, 卢帅, 刘军, 杨绍青, 闫巧娟, 江正强

期刊论文

Roles of acid-producing bacteria in anaerobic digestion of waste activated sludge

Sijia Ai, Hongyu Liu, Mengjie Wu, Guangming Zeng, Chunping Yang

期刊论文

Experimental study on the efficacy of Fuganling granula on protecting against immunological hepatic injury

Yanli LIU, Rong LIU, Cheng ZHEN, Quanfang GUO, Liping WU, Zhaoxi DING, Yushun BI, Zhiyu LIU

期刊论文

Effect of calcium lactate on compressive strength and self-healing of cracks in microbial concrete

Kunamineni VIJAY, Meena MURMU

期刊论文

Climate change and China’s mega urban regions

Chaolin GU, Sunsheng HAN

期刊论文

Energy internet technology: modeling, optimization and dispatch of integrated energy systems

Shilie WENG, Chenghong GU, Yiwu WENG

期刊论文

Reconfigurable manufacturing systems: Principles, design, and future trends

Yoram KOREN, Xi GU, Weihong GUO

期刊论文