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| 1 | Preoperative immunonutrition in patients undergoing liver resection:A prospective randomized trial显示文摘BACKGROUND Preoperative supplementation with immunonutrients, including arginine and n-3 fatty acids, has been shown in a number of systematic reviews to reduce infectious complications in patients who have undergone gastrointestinal surgery. Limited information, however, is available on the benefits of nutritional supplementation enriched with arginine and n-3 fatty acids in patients undergoing liver resection.AIM To evaluate the effects of preoperative nutritional supplementation enriched with arginine and n-3 fatty acids on inflammatory and immunologic markers and clinical outcome in patients undergoing liver resection.METHODS Thirty-four patients undergoing liver resection were randomized to either five days of preoperative Impact? [1020 kcal/d, immunonutrition(IMN) group], or standard care [no supplementation, standard care(STD) group]. Nutritional status was measured at study entry by subjective global assessment(SGA).Functional assessments(grip strength, fatigue and performance status) were carried out at study entry, on the day prior to surgery, and on postoperative day(POD) 7 and 30. Inflammatory and immune markers were measured at study entry, on the day prior to surgery, and POD 1, 3, 5, 7, 10 and 30. Postoperative complications were recorded prospectively until POD30.RESULTS A total of 32 patients(17 IMN and 15 STD) were analysed. All except four patients were SGA class A. The plasma ratio of(eicosapentaenoic acid plus docosahexaenoic acid) to arachidonic acid was higher in IMN patients on the day prior to surgery and POD 1, 3, 5 and 7(P < 0.05). Plasma interleukin(IL)-6 concentrations were elevated in the IMN group(P = 0.017 for POD7). No treatment effect was detected for functional measures, immune response(white cell count and total lymphocytes) or markers of inflammation(C-reactive protein,tumour necrosis factor-α, IL-8, IL-10). There were 10 patients with infectious complications in the IMN group and 4 in the STD group(P = 0.087). Median hospital stay was 9(range 4–49) d in the IMN group and 8(3-34) d in the STD group(P = 0.476).CONCLUSION In well-nourished patients undergoing elective liver resection, this study failed to show any benefit of preoperative immunonutrition. | Kylie Russell Han-Guang Zhang Lyn K GillANDers Adam SJR Bartlett Helena L Fisk Philip C Calder Peter J Swan Lindsay D Plank | 2019 | World Journal of Hepatology2019，11，3： | 3 |
| 2 | Th1 cytokines promote T-cell binding to antigen-presenting cells via enhanced hyaluronan production and accumulation at the immune synapse显示文摘Hyaluronan(HA)production by dendritic cells(DCs)is known to promote antigen presentation and to augment T-cell activation and proliferation.We hypothesized that pericellular HA can function as intercellular‘glue’directly mediating T cell–DC binding.Using primary human cells,we observed HA-dependent binding between T cells and DCs,which was abrogated upon pre-treatment of the DCs with 4-methylumbelliferone(4-MU),an agent which blocks HA synthesis.Furthermore,T cells regulate HA production by DCs via T cell-derived cytokines in a T helper(Th)subset-specific manner,as demonstrated by the observation that cell-culture supernatants from Th1 but not Th2 clones promote HA production.Similar effects were seen upon the addition of exogenous Th1 cytokines,IL-2,interferon c(IFN-c)and tumor necrosis factor a(TNF-a).The critical factors which determined the extent of DC–T cell binding in this system were the nature of the pre-treatment the DCs received and their capacity to synthesize HA,as T-cell clones which were pre-treated with monensin,added to block cytokine secretion,bound equivalently irrespective of their Th subset.These data support the existence of a feedforward loop wherein T-cell cytokines influence DC production of HA,which in turn affects the extent of DC–T cell binding.We also document the presence of focal deposits of HA at the immune synapse between T-cells and APC and on dendritic processes thought to be important in antigen presentation.These data point to a pivotal role for HA in DC–T cell interactions at the IS. | Paul L Bollyky Stephen P Evanko Rebecca P Wu Susan Potter-Perigo S Alice Long Brian Kinsella Helena Reijonen Kelly Guebtner Brandon Teng Christina K Chan Kathy R Braun John A Gebe Gerald T Nepom Thomas N Wight | 2010 | Cellular & Molecular Immunology2010，7，3： | 3 |
| 3 | Folate and vitamin B12 in idiopathic male infertility显示文摘尽管 methylenetetrahydrofolate reductase,叶酸的酶基因,与自发的男不孕被联系了,很少研究检验了另外的叶酸相关的代谢物和基因。我们调查了自发的男不孕是否与变体被联系在叶酸,维生素 B 12(B12 ) 和全部的 homocysteine (tHcy ) 联系了基因并且在血测量了这些代谢物。我们进行了与自发的不孕和在生育力中心和胎儿的照顾中心招募的 184 肥沃的男控制包括了 153 个人的盒子控制研究,大学医院, Malmö并且 Lund,瑞典。浆液叶酸的、红房间叶酸(RCF ) ,浆液 B12,血浆 tHcy 和精液质量被测量。题目是为在与 folate/B12/homocysteine 新陈代谢有关的 12 基因的 20 普通变体的 genotyped。代谢物集中和遗传型分布为 covariates 与调整用线性、逻辑的回归在案例和控制之间被作比较。phosphatidylethanolamine N-methyltransferase (PEMT ) M175V 和 TCblR rs173665 多型性显著地与不孕被联系(P=0.01 和 P=0.009,分别地) ,然而并非与精液质量。在补充的非用户之中,有的不肥沃的人降低浆液叶酸的集中比肥沃的人(12.89 对 14.73 nmol l −1 ;P=0.02 ) ,但是在 RCF, B12 或 tHcy 没有重要差别。叶酸, B12 和 tHcy 集中没与任何精液参数被相关。这研究几乎不提供小支持为低叶酸或在自发的男不孕的致病的 B12 地位。尽管另外的数据被需要证实这些起始的调查结果,我们的结果建议那 PEMT 和 TCblR,基因在胆碱和 B12 新陈代谢包含了,在自发的男不孕应得进一步的调查。 | Laurel E Murphy James L Mills Anne M Molloy Cong Qian Tonia C Carter Helena Strevens Dag Wide-Swensson Aleksander Giwercman Richard J Levine | 2011 | Asian Journal of Andrology2011，13，6： | 2 |
| 4 | Platelet biomarkers in Alzheimer's disease显示文摘The search for diagnostic and prognostic markers in Alzheimer's disease(AD) has been an area of active research in the last decades. Biochemical markers are correlates of intracerebral changes that can be identified in biological fluids, namely: peripheral blood(total blood, red and white blood cells, platelets, plasma and serum), saliva, urine and cerebrospinal fluid. An important feature of a biomarker is that it can be measured objectively and evaluated as(1) an indicator of disease mechanisms(markers of core pathogenic processes or the expression of downstream effects of these processes), or(2) biochemical responses to pharmacological or therapeutic intervention, which can be indicative of disease modification. Platelets have been used in neuropharmacological models since the mid-fifties, as they share several homeostatic functions with neurons, such as accumulation and release of neurotransmitters, responsiveness to variations in calcium concentration, and expression of membrane-bound compounds. Recent studies have shown that platelets also express several components related to the pathogenesis of AD,in particular to the amyloid cascade and the regulation of oxidative stress: thus they can be used in the search for biomarkers of the disease process. For instance, platelets are the most important source of circulating forms of the amyloid precursor protein and other important proteins such as Tau and glycogen synthase kinase-3B. Moreover, platelets express enzymes involved in membrane homeostasis(e.g., phospholipase A2), and markers of the inflammatory process and oxidative stress. In this review we summarize the available literature and discuss evidence concerning the potential use of platelet markers in AD. | Leda L Talib Helena PG Joaquim Orestes V Forlenza | 2012 | World Journal of Psychiatry2012，2，6： | 2 |
| 5 | Simultaneous follow-up of mouse colon lesions by colonoscopy and endoluminal ultrasound biomicroscopy显示文摘AIM:To evaluate the potential use of colonoscopy and endoluminal ultrasonic biomicroscopy(eUBM)to track the progression of mouse colonic lesions.METHODS:Ten mice were treated with a single azoxy-methane intraperitoneal injection(week 1)followed by seven days of a dextran sulfate sodium treatment in their drinking water(week 2)to induce inflammationassociated colon tumors.eUBM was performed simultaneously with colonoscopy at weeks 13,17-20 and21.A 3.6-F diameter 40 MHz mini-probe catheter was used for eUBM imaging.The ultrasound mini-probe catheter was inserted into the accessory channel of a pediatric flexible bronchofiberscope,allowing simultaneous acquisition of colonoscopic and eUBM images.During image acquisition,the mice were anesthetized with isoflurane and kept in a supine position over a stainless steel heated surgical waterbed at 37℃.Both eUBM and colonoscopic images were captured and stored when a lesion was detected by colonoscopy or when the eUBM image revealed a modified colon wall anatomy.During the procedure,the colon was irrigated with water that was injected through a flush port on the mini-probe catheter and that acted as the ultrasound coupling medium between the transducer and the colon wall.Once the acquisition of the last eUBM/colonoscopy section for each animal was completed,the colons were fixed,paraffin-embedded,and stained with hematoxylin and eosin.Colon images acquired at the first time-point for each mouse were compared with subsequent eUBM/colonoscopic images of the same sites obtained in the following acquisitions to evaluate lesion progression.RESULTS:All 10 mice had eUBM and colonoscopic images acquired at week 13(the first time-point).Two animals died immediately after the first imaging acquisition and,consequently,only 8 mice were subjected to the second eUBM/colonoscopy imaging acquisition(at the second time-point).Due to the advanced stage of colonic tumorigenesis,5 animals died after the second time-point image acquisition,and thus,only three were subjected to the third eUBM/colonoscopy imaging acquisition(the third time-point).eUBM was able to detect the four layers in healthy segments of colon:the mucosa(the first hyperechoic layer moving away from the mini-probe axis),followed by the muscularis mucosae(hypoechoic),the submucosa(the second hyperechoic layer)and the muscularis externa(the second hypoechoic layer).Hypoechoic regions between the mucosa and the muscularis externa layers represented lymphoid infiltrates,as confirmed by the corresponding histological images.Pedunculated tumors were represented by hyperechoic masses in the mucosa layer.Among the lesions that decreased in size between the first and third time-points,one of the lesions changed from a mucosal hyperplasia with ulceration at the top to a mucosal hyperplasia with lymphoid infiltrate and,finally,to small signs of mucosal hyperplasia and lymphoid infiltrate.In this case,while lesion regression and modification were observable in the eUBM images,colonoscopy was only able to detect the lesion at the first and second time-points,without the capacity to demonstrate the presence of lymphoid infiltrate.Regarding the lesions that increased in size,one of them started as a small elevation in the mucosa layer and progressed to a pedunculated tumor.In this case,while eUBM imaging revealed the lesion at the first time-point,colonoscopy was only able to detect it at the second time-point.All colonic lesions(tumors,lymphoid infiltrate and mucosal thickening)were identified by eUBM,while colonoscopy identified just76%of them.Colonoscopy identified all of the colonic tumors but failed to diagnose lymphoid infiltrates and increased mucosal thickness and failed to differentiate lymphoid infiltrates from small adenomas.During the observation period,most of the lesions(approximately67%)increased in size,approximately 14%remained unchanged,and 19%regressed.CONCLUSION:Combining eUBM with colonoscopy improves the diagnosis and the follow-up of mouse colonic lesions,adding transmural assessment of the bowel wall. | Rossana C Soletti Kelly Z Alves Marcelo AP de Britto Dyanna G de Matos Mnica Soldan Helena L Borges Joo C Machado | 2013 | World Journal of Gastroenterology2013，19，44： | 1 |
| 6 | Are Therapeutic Human Mesenchymal Stromal Cells Compatible with Human Blood?显示文摘 | Guido Moll Ida Rasmusson‐Duprez Lena von Bahr Anne‐Marie Connolly‐Andersen Graciela Elgue Lillemor Funke Osama A. Hamad Helena L?nnies Peetra U. Magnusson Javier Sanchez Yuji Teramura Kristina Nilsson‐Ekdahl Olle Ringdén Olle Korsgren Bo Nilsson Katarina | 2012 | STEM CELLS2012，，7： | 1 |
| 7 | The role of nursing teacher in clinical practice:An empirical study of Finnish student nurse experiences显示文摘 | Mikko S Tony W Helena L K | 2009 | Nurs Educ Today2009，29，6： | 1 |
| 8 | Rapid resolution of diabetes after gastric bypass显示文摘 | LIMA J HELENA L OLIVERIA S | 2005 | Obes Surg2005，15，3： | 1 |
| 9 | Characterisati- on of 19 almond cuhivars on the basis of their free amino acids composition显示文摘 | Helena S L Poveda E G Moya M S P | 1998 | Food Chemistry1998，61，4： | 1 |
| 10 | Enzymatic characterization of lipid2based drug delivery systems显示文摘 | Helena L W Flemming S N Mattias B | 2005 | Int J Pharm2005，298，32： | 1 |
| 11 | Nursing Students' Ethical Deci- sion-making: a Review of the Literature显示文摘 | Olive H N Helena L K | 2007 | Nurse Educ To- day2007，27，7： | 1 |
| 12 | An exploratory spatial da- ta analysis approach to understanding the relationship between deprivation and mortality in Scotland显示文摘 | Sanjeev S Helena T Richard L | 2007 | Social Science & Me- dicine2007，65，： | 1 |
| 13 | Efficient Genetic Transformation System for the Ochratoxigenic Fungus Aspergillus carbonarius显示文摘 | Luiz Rodrigo I. Morioka Márcia C. Furlaneto Andréa C. Bogas Patrícia Pompermayer Rubens T. D. Duarte Maria Lúcia C. Vieira Maria Angélica Ehara Watanabe Maria Helena P. Fungaro | 2006 | Current Microbiology2006，，6： | 1 |
| 14 | Highly porous and interconnected starch-based scaffolds Production,characterization and surface modification显示文摘 | Iva P Paula M L P Azevedo Helena S A | 2010 | Materials Science and Engineering C2010，30，： | 1 |
| 15 | Nitric oxide production in blowfly hemolymph after yeast inoculation显示文摘 | Ana Carolina Faraldo Anderson Sá-Nunes Elaine Aparecida Del Bel Lúcia Helena Faccioli Edy Lello | 2005 | Nitric Oxide2005，，4： | 1 |
| 16 | Rapid resolution of diabetes after gastric bypass 显示文摘 | Lima J Helena L Oliveira S | 2005 | Obes Surg2005，15，3： | 1 |
| 17 | Reduced-energy cranberry juice increases folic acid and adiponectin and reduces homocysteine and oxidative stress in patients with the metabolic syndrome显示文摘 | Tathiana Name Colado Sim?o Marcell Alysson Batisti Lozovoy Andréa Name Colado Sim?o Sayonara Rangel Oliveira Danielle Venturini Helena Kaminami Morimoto Lúcia Helena Silva Miglioranza Isaias Dichi | 2013 | British Journal of Nutrition2013，，10： | 1 |
| 18 | Tribological analysis of TiN and DLC coated contacts by 3D FEM modeling and stress simulation 显示文摘 | KENNETH H HELENA R ANSSI L | 2008 | Wear2008，264，910： | 1 |
| 19 | Differences in antitumor effects of various statins on human pancreatic cancer显示文摘 | HELENA G MARTIN L JAROSLAV Z | 2008 | Int J Cancer2008，122，6： | 1 |
| 20 | Enzymatic characterization of lipid-based drug delivery systems显示文摘 | Helena L W Flemming S N Mattias B | 2005 | Int J Pharm2005，298，2： | 1 |
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