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| 1 | 一种高效便捷的水稻DNA提取法及其应用显示文摘以水稻叶片、根和种子为材料,采用高通量快速法提取基因组DNA,用稻瘟病Pita基因分子标记进行检测,获得与预期片段大小一致的特异性条带,对165份育种材料的检测结果与稻瘟病接种鉴定一致。操作方法如下:将少量水稻叶片、根或种子放入200μL PCR盘中,加入70μL缓冲液A(含NaOH和Tween20),在PCR仪中加热到95℃,保持10min,再加入70μL缓冲液B(Tris-HCl和EDTA),该提取液可以直接用于PCR扩增。该方法具有几个优点:1)成本低,仅用4种化学试剂,共140μL提取液;2)操作简便,仅需3步,每人每天可以提取上千份样品;3)仪器设备简单,只用常规的PCR仪;4)可直接提取干种子的DNA;5)DNA质量好,能检测出水稻中的抗稻瘟病单基因Pita,并且与稻瘟病接种鉴定结果一致;6)用量少,只需要5~20mg叶片、20mg根或半粒籽粒。尤其是检测大量样本的基因型时,此种方法更显得高效便捷。 | 赵国珍 贾育林 严宗卜 Christopher W DEREN Melissa H JIA 戴陆园 | 2012 | 中国水稻科学2012，26，4： | 21 |
| 2 | Retrospective study on mixed neuroendocrine non-neuroendocrine neoplasms from five European centres显示文摘BACKGROUND Mixed neuroendocrine non-neuroendocrine neoplasm(MiNEN)is a rare diagnosis,mainly encountered in the gastro-entero-pancreatic tract.There is limited knowledge of its epidemiology,prognosis and biology,and the best management for affected patients is still to be defined.AIM To investigate clinical-pathological characteristics,treatment modalities and survival outcomes of a retrospective cohort of patients with a diagnosis of MiNEN.METHODS Consecutive patients with a histologically proven diagnosis of MiNEN were identified at 5 European centres.Patient data were retrospectively collected from medical records.Pathological samples were reviewed to ascertain compliance with the 2017 World Health Organisation definition of MiNEN.Tumour responses to systemic treatment were assessed according to the Response Evaluation Criteria in Solid Tumours 1.1.Kaplan-Meier analysis was applied to estimate survival outcomes.Associations between clinical-pathological characteristics and survival outcomes were explored using Log-rank test for equality of survivors functions(univariate)and Cox-regression analysis(multivariable).RESULTS Sixty-nine consecutive patients identified;Median age at diagnosis:64 years.Males:63.8%.Localised disease(curable):53.6%.Commonest sites of origin:colon-rectum(43.5%)and oesophagus/oesophagogastric junction(15.9%).The neuroendocrine component was;predominant in 58.6%,poorly differentiated in 86.3%,and large cell in 81.25%,of cases analysed.Most distant metastases analysed(73.4%)were occupied only by a poorly differentiated neuroendocrine component.Ninety-four percent of patients with localised disease underwent curative surgery;53%also received perioperative treatment,most often in line with protocols for adenocarcinomas from the same sites of origin.Chemotherapy was offered to most patients(68.1%)with advanced disease,and followed protocols for pure neuroendocrine carcinomas or adenocarcinomas in equal proportion.In localised cases,median recurrence free survival(RFS);14.0 months(95%CI:9.2-24.4),and median overall survival(OS):28.6 months(95%CI:18.3-41.1).On univariate analysis,receipt of perioperative treatment(vs surgery alone)did not improve RFS(P=0.375),or OS(P=0.240).In advanced cases,median progression free survival(PFS);5.6 months(95%CI:4.4-7.4),and median OS;9.0 months(95%CI:5.2-13.4).On univariate analysis,receipt of palliative active treatment(vs best supportive care)prolonged PFS and OS(both,P<0.001).CONCLUSION MiNEN is most commonly driven by a poorly differentiated neuroendocrine component,and has poor prognosis.Advances in its biological understanding are needed to identify effective treatments and improve patient outcomes. | Melissa Frizziero Xin Wang Bipasha Chakrabarty Alexa Childs Tu V Luong Thomas Walter Mohid S Khan Meleri Morgan Adam Christian Mona Elshafie Tahir Shah Annamaria Minicozzi Wasat Mansoor Tim Meyer Angela Lamarca Richard A Hubner Juan W Valle Mairéad G McNamara | 2019 | World Journal of Gastroenterology2019，25，39： | 13 |
| 3 | Viral hepatitis prevalence in patients with active and latent tuberculosis显示文摘AIM: To assess the prevalence of hepatitis B virus(HBV) and hepatitis C virus(HCV) infection and association with drug induced liver injury(DILI) in patients undergoing anti-tuberculosis(TB) therapy.METHODS: Four hundred and twenty nine patients with newly diagnosed TB- either active disease or latent infection- who were due to commence antiTB therapy between September 2008 and May 2011 were included. These patients were prospectively tested for serological markers of HBV, HCV and human immunodeficiency virus(HIV) infections- hepatitis B core antigen(HBc Ag), hepatitis B surface antigen(HBs Ag), hepatitis B e antigen, Ig G and Ig M antibody to HBc Ag(anti-HBc), HCV Ig G antibody and HIV antibody using a combination of enzyme-linked immunosorbent assay, Western blot assay and polymerase chain reaction techniques. Patients were reviewed at least monthly during the TB treatment initiation phase. Liver function tests were measured prior to commencement of antiTB therapy and 2-4 wk later. Liver function tests were also performed at any time the patient had significant nausea, vomiting, rash, or felt non-specifically unwell. Fisher's exact test was used to measure significance in comparisons of proportions between groups. A P value of less than 0.05 was considered statistically significant.RESULTS: Of the 429 patients, 270(62.9%) had active TB disease and 159(37.1%) had latent TB infection. 61(14.2%) patients had isolated anti-HBc positivity, 11(2.6%) were also HBs Ag positive and 7(1.6%) were HCV-antibody positive. 16/270 patients with active TB disease compared to 2/159 patients with latent TB infection had markers of chronic viral hepatitis(HBs Ag or HCV antibody positive; P = 0.023). Similarly the proportion of HBs Ag positive patients were significantly greater in the active vs latent TB infection group(10/43 vs 1/29, P = 0.04). The prevalence of chronic HBV or HCV was significantly higher than the estimated United Kingdom prevalence of 0.3% for each. We found no association between DILI and presence of serological markers of HBV or HCV. Three(5.3%) patients with serological markers of HBV or HCV infection had DILI compared to 25(9.5%) patients without; P = 0.04.CONCLUSION: Viral hepatitis screening should be considered in TB patients. DILI risk was not increased in patients with HBV/HCV. | Hesam Ahmadi Nooredinvand David W Connell Mahmoud Asgheddi Mohammed Abdullah Marie O'Donoghue Louise Campbell Melissa I Wickremasinghe Ajit Lalvani Onn Min Kon Shahid A Khan | 2015 | World Journal of Gastroenterology2015，21，29： | 7 |
| 4 | Multiphase computed tomography radiomics of pancreatic intraductal papillary mucinous neoplasms to predict malignancy显示文摘BACKGROUND Intraductal papillary mucinous neoplasms(IPMNs)are non-invasive pancreatic precursor lesions that can potentially develop into invasive pancreatic ductal adenocarcinoma.Currently,the International Consensus Guidelines(ICG)for IPMNs provides the basis for evaluating suspected IPMNs on computed tomography(CT)imaging.Despite using the ICG,it remains challenging to accurately predict whether IPMNs harbor high grade or invasive disease which would warrant surgical resection.A supplementary quantitative radiological tool,radiomics,may improve diagnostic accuracy of radiological evaluation of IPMNs.We hypothesized that using CT whole lesion radiomics features in conjunction with the ICG could improve the diagnostic accuracy of predicting IPMN histology.AIM To evaluate whole lesion CT radiomic analysis of IPMNs for predicting malignant histology compared to International Consensus Guidelines.METHODS Fifty-one subjects who had pancreatic surgical resection at our institution with histology demonstrating IPMN and available preoperative CT imaging were included in this retrospective cohort.Whole lesion semi-automated segmentation was performed on each preoperative CT using Healthmyne software(Healthmyne,Madison,WI).Thirty-nine relevant radiomic features were extracted from each lesion on each available contrast phase.Univariate analysis of the 39 radiomics features was performed for each contrast phase and values were compared between malignant and benign IPMN groups using logistic regression.Conventional quantitative and qualitative CT measurements were also compared between groups,viaχ2(categorical)and Mann Whitney U(continuous)variables.RESULTS Twenty-nine subjects(15 males,age 71±9 years)with high grade or invasive tumor histology comprised the'malignant'cohort,while 22 subjects(11 males,age 70±7 years)with low grade tumor histology were included in the'benign'cohort.Radiomic analysis showed 18/39 precontrast,19/39 arterial phase,and 21/39 venous phase features differentiated malignant from benign IPMNs(P<0.05).Multivariate analysis including only ICG criteria yielded two significant variables:thickened and enhancing cyst wall and enhancing mural nodule<5 mm with an AUC(95%CI)of 0.817(0.709-0.926).Multivariable post contrast radiomics achieved an AUC(95%CI)of 0.87(0.767-0.974)for a model including arterial phase radiomics features and 0.834(0.716-0.953)for a model including venous phase radiomics features.Combined multivariable model including conventional variables and arterial phase radiomics features achieved an AUC(95%CI)of 0.93(0.85-1.0)with a 5-fold cross validation AUC of 0.90.CONCLUSION Multi-phase CT radiomics evaluation could play a role in improving predictive capability in diagnosing malignancy in IPMNs.Future larger studies may help determine the clinical significance of our findings. | Stuart L Polk Jung W Choi Melissa J McGettigan Trevor Rose Abraham Ahmed Jongphil Kim Kun Jiang Yoganand Balagurunathan Jin Qi Paola T Farah Alisha Rathi Jennifer B Permuth Daniel Jeong | 2020 | World Journal of Gastroenterology2020，26，24： | 5 |
| 5 | Dysfunctional stem and progenitor cells impair fracture healing with age显示文摘Successful fracture healing requires the simultaneous regeneration of both the bone and vasculature;mesenchymal stem cells (MSCs) are directed to replace the bone tissue, while endothelial progenitor cells (EPCs) form the new vasculature that supplies blood to the fracture site. In the elderly, the healing process is slowed, partly due to decreased regenerative function of these stem and progenitor cells. MSCs from older individuals are impaired with regard to cell number, proliferative capacity, ability to migrate, and osteochondrogenic differentiation potential. The proliferation, migration and function of EPCs are also compromised with advanced age. Although the reasons for cellular dysfunction with age are complex and multidimensional, reduced expression of growth factors, accumulation of oxidative damage from reactive oxygen species, and altered signaling of the Sirtuin-1 pathway are contributing factors to aging at the cellular level of both MSCs and EPCs. Because of these geriatric-specific issues, effective treatment for fracture repair may require new therapeutic techniques to restore cellular function. Some suggested directions for potential treatments include cellular therapies, pharmacological agents, treatments targeting age-related molecular mechanisms, and physical therapeutics. Advanced age is the primary risk factor for a fracture, due to the low bone mass and inferior bone quality associated with aging;a better understanding of the dysfunctional behavior of the aging cell will provide a foundation for new treatments to decrease healing time and reduce the development of complications during the extended recovery from fracture healing in the elderly. | Diane R Wagner Sonali Karnik Zachary J Gunderson Jeffery J Nielsen Alanna Fennimore Hunter J Promer Jonathan W Lowery M Terry Loghmani Philip S Low Todd O McKinley Melissa A Kacena Matthias Clauss Jiliang Li | 2019 | World Journal of Stem Cells2019，11，6： | 3 |
| 6 | Biomarker-guided sequential targeted therapies to overcome therapy resistance in rapidly evolving highly aggressive mammary tumors显示文摘组合指向的治疗在由堵住治疗癌症是更有效的绕过机制或导致的合成致命性。然而,他们的临床的申请被抵抗和毒性妨碍。遇见这重要挑战,我们用 ErbB2-overexpressing/PTEN-low 开发了并且测试各种各样的指向的治疗的指导 biomarker 的顺序的应用程序的一个新奇概念,高度好攻击的乳癌作为我们的模型。惊人地,从遗传上设计的鼠标与 intratumoral 异质从病人和乳房的肿瘤在两 PTEN-low/trastuzumab-resistant 乳癌支撑了 ErbB2 和下游的小径驱动器 trastuzumab 抵抗的激活。尽管 lapatinib 开始禁止了 trastuzumab 抵抗的鼠标肿瘤,肿瘤由激活表明由量的蛋白质数组出现的网络的 PI3K/mTOR 绕过抑制。有趣地,小径也是的 mTOR 的激活在 neoadjuvant 观察了表明 lapatinib 抵抗的对待 lapatinib 的病人。Trastuzumab + lapatinib 抵抗被一个 PI3K/mTOR 双 kinase 禁止者(BEZ235 ) 的顺序的申请有效地没有重要毒性克服。然而,我们的 p-RTK 数组分析证明 BEZ235 治疗在遗传上设计的老鼠肿瘤导致了增加的 ErbB2 表示和 phosphorylation,导致 BEZ235 抵抗并且在 3-D,然而并非 2-D,文化。机械学地,我们作为 BEZ235 抵抗的新奇机制识别了 ErbB2 蛋白质稳定和激活,它被随后的治疗与 lapatinib + BEZ235 联合颠倒。显著地, biomarker 指导的指向的治疗的这个顺序的应用程序在很快发展加倍的抵抗的肿瘤改变忍受极其好攻击的肿瘤的鼠标的寿命。使用的这条根本上新奇的途径有效地在一个顺序的顺序罐头指向了治疗目标和改编在在治疗期间发展抵抗的癌症的发信号的网络。 | Ozgur Sahin Qingfei Wang Samuel W Brady Kenneth Ellis Hai Wang Chia-Chi Chang Qingling Zhang Preety Priya Rui Zhu Stephen T Wong Melissa D Landis William J Muller Francisco J Esteva Jenny Chang Dihua Yu | 2014 | Cell Research2014，24，5： | 2 |
| 7 | Molecular anal ysis of commensal host microbial relationships in the intestine显示文摘 | Hooper L V Melissa H W Anders T | 2001 | Science2001，291，5505： | 1 |
| 8 | Reproductive toxicity evaluation of dietary butyl benzyl phthalate(BBP)in rats显示文摘 | Rochelle W T Christina B M Melissa C M | 2004 | Reproductive Toxicology2004，18，： | 1 |
| 9 | Catalytic enantioselective synthesis of 20 ( S )-camptothecin: A practical application of the sharpless asymmetric dihydroxylation reaction显示文摘 | Francis G Fang Shiping Xie Melissa W | 1994 | J Org Chem1994，59，21： | 1 |
| 10 | Characterization of the last deglacial transition in tropical East Afri显示文摘 | Melissa A B Thomas C J Josef P W | 2014 | Palaeogeography Palaeoclimatology Palaeoecology2014，409，： | 1 |
| 11 | International trends in colorectal cancer incidence rates显示文摘 | Melissa MC Ahmedin J Elizabeth W | 2009 | Cancer Epidemiol Biomarkers Prev2009，18，6： | 1 |
| 12 | Appleyard, Open innovation and strategy 显示文摘 | CHESBROUGH H W MELISSA M | 2007 | California Management Review2007，50，1： | 1 |
| 13 | Secondhand smoke drift: Examining the influence of indoor smoking bans on indoor and outdoor air quality at pubs and bars 显示文摘 | Emily B Melissa C Charles W | 2010 | Nicotine & Tobacco Research2010，12，： | 1 |
| 14 | Pretend play as a resource for children: implications for pediatricians and health professionals显示文摘 | Melissa M Sandra W Russ S | 2006 | J Dev Behav Pediatr2006，27，3： | 1 |
| 15 | Iron- deficiency anemia (IDA) in infancy and mother-infant interaction during feeding显示文摘 | RINAT A S MELISSA K E SANDRA W J | 2010 | Dev Behav Pediatr2010，31，4： | 1 |
| 16 | Mesenchy-mally-derived insulin-like growth factor-I provides a paracrine stimulus for trophoblast migration显示文摘 | Helen L Teresa H Melissa W | 2002 | BMC Dev Biol2002，2，1： | 1 |
| 17 | Soy isoflavone intake lowers serum LDL cholesterol: a meta-analysis of 8 randomized controlled trial in humans显示文摘 | ZHOU X G MELISSA K M SHAW W | 2004 | J Nutr2004，134，： | 1 |
| 18 | Mesenchy-mally-derived Insulin-like growth factor 1 provides a paracrine stimulus for trophoblast migration显示文摘 | Helen L Teresa H Melissa W | 2002 | BMC Dev Biol2002，2，1： | 1 |
| 19 | Characterization and hydrodesulfurization properties of catalysts derived from amorphous metal-boron material显示文摘 | Greg L Parks Melissa L Pease Autumn W Bums | 2007 | Journal of Catalysis2007，246，： | 1 |
| 20 | Mesenchy - mally- derived insulin-like growth factor- Ⅰ provides a paracrine stimulus for trophoblast migration显示文摘 | Helen L Teresa H Melissa W | 2002 | BMC Dev Biol2002，2，1： | 1 |
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