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Degradation of chlorpyrifos alone and in combination with chlorothalonil and their effects on soil microbial populations

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Journal of Environmental Sciences 2008年第4期20卷 464-469页

作者： CHU xiaoqiang FANG Hua PAN Xuedong WANG xiao shan Min feng Bo YU Yunlong Department of Plant Protection College of Agriculture and Biotechnology Zhejiang University Hangzhou 310029 China

In practice, pesticides are usually applied simultaneously or one after another for crop protection, and this type of pesticide application often leads to a combined contamination of pesticide residues in the soil environment. A laboratory study was conducted to investigate the influence of chlorothalonil on chlorpyrifos degradation and its effects on soil bacterial, fungal, and actinomycete populations. Under the experimental conditions here, the half-lives of chlorpyrifos alone, and in combination with chlorothalonil, at the recommended and double dosages, were measured to be 3.24, 2.77, and 2.63 d, respectively. Chlorpyrifos degradation was not significantly altered by its combination with chlorothalonil. However, the inhibitory effect of chlorpyrifos on soil microorganisms was increased by its combination with chlorothalonil, and the increase was related to the levels of chlorothalonil added. Compared to those in the controls, the populations of bacteria, fungi, and actinomycetes were significantly reduced by 44.1%, 61.1%, and 72.8%, respectively, on the first day after treatment （DAT） by chlorpyrifos alone. With the addition of chlorothalonil, the inhibition was increased to 55.2%, 79.3%, and 85,8% at the recommended dosage, and 86.0%, 94.1%, and 90.8% at the double dosage, at one DAT, respectively. The results suggested that combined effects should be taken into account to assess the actual impacts of pesticide applications.

关键词： pesticide soil microorganism chlorpyrifos chlorothalonil combination

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Midkine promotes perineural invasion in human pancreatic cancer

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World Journal of Gastroenterology 2014年第11期20卷 3018-3024页

作者： Jun Yao Wen-Yao Li Shuo-Guo Li xiao-shan feng She-Gan Gao Department of Oncology First Affiliated HospitalHenan University of Science and Technology

AIM: To investigate midkine (MK) and syndecan-3 protein expression in pancreatic cancer by immunohistochemistry, and to analyze their correlation with clinicopathological features, perineural invasion, and prognosis.

关键词： Midkine Syndecan-3 Pancreatic cancer Neurite growth Perineural invasion

Reduced expression of circulating microRNA-218 in gastric cancer and correlation with tumor invasion and prognosis

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World Journal of Gastroenterology 2014年第22期20卷 6906-6911页

作者： Shi-Yong Xin xiao-shan feng Li-Qing Zhou Jun-Jun Sun xiao-Le Gao Guo-Liang Yao Department of Urology First Affiliated Hospital of Henan University of Science and Technology Department of Surgical Oncology First Affiliated Hospital of Henan University of Science and Technology Department of Rheumatism Immunity Branch First Affiliated Hospital of Henan University of Science and Technology Department of General Surgery First Affiliated Hospital of Henan University of Science and Technology

AIM:To investigate the expression of microRNA-218(miR-218)in serum from gastric cancer patients and its relationship with clinicopathological ***:A total of 68 patients with pathologically diagnosed gastric cancer and 56 healthy individuals were recruited to this *** expression of miR-218was detected in the serum of gastric cancer patients and healthy individuals by quantitative real-time polymerase chain *** clinical data were collectedand analyzed by statistical ***:miR-218 was reduced significantly in the serum of gastric cancer patients compared to healthy individuals(1.15±0.08 vs 0.37±0.023;P=0.026).In the gastric cancer group,serum expression of miR-218was lower in patients with metastasis and poorly differentiated cancer compared with non-metastatic and well-differentiated cancer(0.19±0.011 vs 0.45±0.021,P=0.031 and 0.21±0.019 vs 0.49±0.021,P=0.025).Serum miR-218 was found to be significantly associated with gastric cancer metastasis(P=0.003),tumor T stage(P=0.018)and tumor grade(P=0.012).Low serum expression of miR-218 was related to an increase in the stage of gastric *** expression level of miR-218 in the serum was correlated with the3-year ***-seven percent of patients with a high level of miR-218 expression survived for 3 years,while only 54%of those with low miR-218 expression ***:miR-218 is deregulated in gastric cancer patients and is strongly correlated with tumor stage,grade and *** expression of miR-218 may be a prognostic marker.

关键词： Gastric cancer microRNA-218 Invasion Prognosis

Botulinum toxin A inhibits salivary secretion of rabbit submandibular gland

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International Journal of Oral Science 2013年第4期5卷 217-223页

作者： xiao-feng shan Hui Xu Zhi-Gang Cai Li-Ling Wu Guang-Yan Yu Department of Oral and Maxillofacial Surgery Peking University School and Hospital of Stomatology Department of Physiology and Pathophysiology Peking University Health Science Center

Botulinum toxin A （BTXA） has been used in several clinical trials to treat excessive glandular secretion; however, the precise mechanism of its action on the secretory function of salivary gland has not been fully elucidated. In this study, we aimed to investigate the effect of BTXA on secretion of submandibular gland in rabbits and to identify its mechanism of action on the secretory function of salivary gland. At 12 weeks after injection with 5 units of BTXA, we found a significant decrease in the saliva flow from submandibular glands, while the salivary amylase concentration increased. Morphological analysis revealed reduction in the size of acinar cells with intracellular accumulation of secretory granules that coalesced to form a large ovoid structure. Expression of M3-muscarinic acetylcholine receptor （M3 receptor） and aquaporin-5 （AQP5） mRNA decreased after BTXA treatment, and distribution of AQP5 in the apical membrane was reduced at 1, 2 and 4 weeks after BTXA injection. Furthermore, BTXA injection was found to induce apoptosis of acini. These results indicate that BTXA decreases the fluid secretion of submandibular glands and increases the concentration of amylase in saliva. Decreased expression of M3 receptor and AQP5, inhibition of AQP5 translocation, and cell apoptosis might involve in BTXA-reduced fluid secretion of submandibular lands.

关键词： aquaporin-5 apoptosis botulinum toxin A M3-muscarinic acetylcholine receptor submandibular gland

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Therapeutic effects of combined oxaliplatin and S-1 in older patients with advanced gastric cardiac adenocarcinoma

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World Journal of Gastroenterology 2011年第47期17卷 5221-5226页

作者： She-Gan Gao Rui-Nuo Jia xiao-shan feng Xuan-Hu Xie Tan-You shan Li-Xian Pan Na-Sha Song Yu-feng Wang Kai-Li Ding Li-Dong Wang Department of Oncology First-Affiliated HospitalCancer Institute Henan University of Science and TechnologyLuoyang 471003 Henan Province China Henan Key Laboratory for Esophageal Can-cer Laboratory for Cancer Research Basic Medical CollegeZhengzhou University Zhengzhou 450052 Henan ProvinceChina

AIM:To evaluate the effects and safety of combination chemotherapy with oxaliplatin (L-OHP) and S-1 (SOX regimen) in older patients with advanced gastric cardiac adenocarcinoma (GCA). METHODS: Seventy patients with advanced GCA were classified according to age into an older group (≥ 75 years) and a control group ( 0.05). CONCLUSION: The SOX regimen is an effective, safe and well-tolerated regimen for older patients with advanced GCA.

关键词： Gastric cardiac adenocarcinoma Oxalipla-tin S-1 Treatment effect

基于精细化物流管理的工程建设企业物流管理框架构建

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物流技术 2012年第5期31卷 83-85页

作者：单晓峰浙江财经学院东方学院浙江海宁314408

从精细化物流管理的角度出发,首先阐述了精细化物流管理以及工程建设物流的相关理论,然后构建了工程建设企业物流管理框架,以便更好地实现工程建设企业的最优目标。

关键词：精细化物流工程建设物流管理

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Precise Mandibular Reconstruction with the Iliac Flap Using Series of Digital Surgical Guides

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Precise Mandibular Reconstruction with the Iliac Flap Using ...

Histochemical studies on intestinal metaplasia adjacent to gastric cardia adenocarcinoma in subjects at high-incidence area in Henan, north China

2019第一届全国口腔颌面-头颈肿瘤学术大会——聚合引领、协同发展

作者：康一帆 xiao feng shan LEI Zhang ZHI GangCai Peking University School and Hospital of Stomatology Department of Oral and Maxillofacial Surgery

Objective: Evaluate the accuracy of the iliac flap in reconstructing mandibular defects under the guidance of a series of digital surgical *** and Methods: a retrospective review of 7 patients with mandibular defects reconstructed with an iliac flap under the guidance of a series of digital surgical guides at the Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology from September 2017 to June 2018. The virtual surgical planning(VSP) was done pre-operatively. A resin stereo model was printed for pre-bending the titanium plate. The pre-bent titanium plate and the stereo model were three-dimensional(3D) scanned to obtain the relative positions of the titanium plate and the mandible. Based on the above information, design the series of surgical guide for the osteotomy and shaping to accurately transfer the information of VSP to the surgery. Deviation distribution after 3D comparison was used to evaluate the accuracy of the surgery.

关键词： Precise Mandibular Reconstruction with the Iliac Flap Using Series of Digital Surgical Guides VSP

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World Journal of Gastroenterology 2005年第30期11卷 4634-4637页

作者： She-Gan Gao Li-Dong Wang Zong-Min Fan Ji-Lin Li Xin He Rui-feng Guo Dong-Ling Xie Xin-Wei He shan-shan Gao Hua-Qin Guo Jun-Kuan Wang xiao-shan feng Bao-Gen Ma Laboratory for Cancer Research College of Medicine Zhengzhou University Zhengzhou 450052 Henan Province China Department of Pathology Linzhou Esophageal Cancer Hospital Linzhou Henan Province China Dep-artment of Clinical Oncology The First Affiliated Hospital of Henan Science and Technology University Luoyang 471001 Henan Province China Department of Oncology Henan Tumor Hospital Zhengzhou 450003 Henan Province China

AIM： To characterize the histochemical type and pattern of intestinal metaplasia （IM） adjacent to gastric cardia adenocarcinoma （GCA） and distal gastric cancer （GC） in Unzhou, Henan Province, China. METHODS： Alcian-blue-periodic acid Schiff and high iron diamine-Alcian blue histochemical methods were performed on 142 cases of IM, including 49 cases of GCA and 93 cases of GC. All the patients were from Linzhou, Henan Province, China, the highest incidence area for both GCA and squamous cell carcinoma. Radio- or chemotherapy was not applied to these patients before surgery. RESULTS： The detection rate of IM in tissues adjacent to GCA tissues was 44.9%, which was significantly lower than that in GC tissues （80.64%, P〈0.01）. The rates of both incomplete small intestinal and colonic IM types identified by histochemistry in GCA tissues （31.82% and 63.64%, respectively） were significantly higher than those in GC （5.33% and 21.33%, respectively, P〈0.01）. CONCLUSION： IM in GCA and GC should be considered as a separate entity. Further research is needed to evaluate whether neoplastic progression of IM is related to its mucin profile in GCA.

关键词： Gastric cardia Intestinal metaplasia Histochemistry

全外显子测序及相关指标在口腔鳞状细胞癌精准治疗中的应用价值

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北京大学学报（医学版） 2023年第4期55卷 697-701页

作者：谢尚蔡志刚单小峰北京大学口腔医学院·口腔医院口腔颌面外科国家口腔医学中心国家口腔疾病临床医学研究中心口腔生物材料和数字诊疗装备国家工程研究中心北京100081

目的:探索全外显子测序及相关指标在口腔鳞状细胞癌(oral squamous cell carcinoma,OSCC)个性化精准治疗中的意义和推广应用的可行性。方法:选取2021年1月至2022年6月在北京大学口腔医院行OSCC根治手术并接受基因检测和免疫相关指标检... 详细信息

目的:探索全外显子测序及相关指标在口腔鳞状细胞癌(oral squamous cell carcinoma,OSCC)个性化精准治疗中的意义和推广应用的可行性。方法:选取2021年1月至2022年6月在北京大学口腔医院行OSCC根治手术并接受基因检测和免疫相关指标检测的患者,结合其临床病理特点,筛选潜在的靶向药物和免疫药物,以评估基因检测使患者受益的可能性。主要评估指标包括基因突变数量、联合阳性分数(combined positive score,CPS)、肿瘤突变负荷(tumor mutation burden,TMB)、微卫星序列状态和人类白细胞抗原B位点(human leukocyte antigen B,HLA-B)等。采用Excel进行统计学分析。结果:共10例患者,排除1例腺样囊性癌,9例OSCC患者纳入本研究,其中男性6例,女性3例,平均年龄(55.44±9.59)岁。肿瘤位置:颊部5例,舌部3例,牙龈1例。基因检测结果发现,3例(33.3%)患者肿瘤组织内未发现基因突变,5例(55.6%)存在唯一的TP53基因突变,1例(11.1%)存在TP53和CHEK1突变,但暂无上市药物可用于这些突变基因的靶向治疗。遗传性肿瘤基因检测结果发现,所有患者中均未发现遗传肿瘤基因存在,提示OSCC为遗传性肿瘤的可能性较低。在免疫疗效相关标志物检测方面,CPS检测结果发现8例患者CPS≥1;TMB检测结果发现,TMB中位数为0.72 mutations/Mb(0~4.32 mutations/Mb),均较低;微卫星序列状态检测结果发现阴性及阳性对照结果均正确,提示所检测肿瘤组织均为微卫星稳定性;HLA-B检测结果发现仅有1例患者存在B62基因突变,提示OSCC组织标本中HLA-B的B44和B62相关基因型非常低。结论:现有结果不支持基因检测和免疫相关指标检测在OSCC治疗中的广泛应用及推广。

关键词：癌,鳞状细胞口腔肿瘤全外显子组测序基因检测精准医学

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