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1XRCC1 and DNA polymerase β in cellular protection against cytotoxic DNA single-strand breaks显示文摘Julie K Horton Mary Watson Donna F Stefanick Daniel T Shaughnessy Jack A Taylor Samuel H Wilson 2008Cell Research2008,18,1:17
2Adenoid cystic carcinoma of breast: Recent advances显示文摘Adenoid cystic carcinoma(ACC) of the breast is a rare special subtype of breast cancer characterized by the presence of a dual cell population of luminal and basaloid cells arranged in specific growth patterns. Most breast cancers with triple-negative, basal-like breast features(i.e., tumors that are devoid of estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2 expression, and express basal cell markers) are generally high-grade tumors with an aggressive clinical course. Conversely, while ACCs also display a triple-negative, basal-like phenotype, they are usually low-grade and exhibit an indolent clinical behavior. Many discoveries regarding the molecular and genetic features of the ACC, including a specific chromosomal translocation t(6;9) that results in a MYB-NFIB fusion gene, have been made in recent years. This comprehensive review provides our experience with ACC of the breast, as well as an overview of clinical, histopathological, and molecular genetic features.Kosuke Miyai Mary R Schwartz Mukul K Divatia Rose C Anton Yong Wook Park Alberto G Ayala Jae Y Ro 2014World Journal of Clinical Cases2014,2,12:16
3Radioembolization for the treatment of unresectable hepatocellular carcinoma:A clinical review显示文摘Hepatocellular carcinoma(HCC)is the sixth most common cancer in the world.The majority of patients with HCC present with unresectable disease.These patients have historically had limited treatment options secondary to HCC demonstrating chemoresistance to the currently available systemic therapies.Additionally, normal liver parenchyma has shown intolerance to tumoricidal radiation doses,limiting the use of external beam radiation.Because of these limitations,novel percutaneous liver-directed therapies have emerged. The targeted infusion of radioactive microspheres (radioembolization)represents one such therapy. Radioembolization is a minimally invasive transcatheter therapy through which radioactive microspheres are infused into the hepatic arteries that supply tumor. Once infused,these microspheres traverse the hepatic vascular plexus and selectively implant within the tumor arterioles.Embedded within the arterioles, the 90Y impregnated microspheres emit high energy and low penetrating radiation doses selectively to the tumor.Radioembolization has recently shown promise for the treatment of patients with unresectable HCC. The objective of this review article is to highlight twocurrently available radioembolic devices(90Y,188Rh)and provide the reader with a recent review of the literature.Saad M Ibrahim Robert J Lewandowski Kent T Sato Vanessa L Gates Laura Kulik Mary F Mulcahy Robert K Ryu Reed A Omary Riad Salem 2008World Journal of Gastroenterology2008,14,11:14
4Diffusion-weighted magnetic resonance imaging to predict response of hepatocellular carcinoma to chemoembolization显示文摘AIM: To investigate whether intra-procedural diffusion- weighted magnetic resonance imaging can predict response of hepatocellular carcinoma (HCC) during trans- catheter arterial chemoembolization (TACE). METHODS: Sixteen patients (15 male), aged 59 ±11 years (range: 42-81 years) underwent a total of 21 separate treatments for unresectable HCC in a hybrid magnetic resonance/interventional radiology suite. Ana- tomical imaging and diffusion-weighted imaging (b = 0, 500 s/mm2) were performed on a 1.5-T unit. Tumor enhancement and apparent diffusion coefficient (ADC, mm2/s) values were assessed immediately before and at 1 and 3 mo after TACE. We calculated the percent change (PC) in ADC values at all time points. We compared follow-up ADC values to baseline values using a paired t test (α = 0.05). RESULTS: The intra-procedural sensitivity, specificity, and positive and negative predictive values (%) for detecting a complete or partial 1-mo tumor response using ADC PC thresholds of ±5%, ±10%, and ±15% were 77, 67, 91, and 40; 54, 67, 88, and 25; and 46, 100, 100, and 30, respectively. There was no clear predictive value for the 3-mo follow-up. Compared to baseline, the immediate post-procedure and 1-mo mean ADC values both increased; the latter obtaining statistical significance (1.48 ± 0.29 mm2/s vs 1.65 ± 0.35 × 10-3 mm2/s, P < 0.014). CONCLUSION: Intra-procedural ADC changes of > 15% predicted 1-mo anatomical HCC response with the greatest accuracy, and can provide valuable feedback at the time of TACE.Johnathan C Chung Neel K Naik Robert J Lewandowski Mary F Mulcahy Laura M Kulik Kent T Sato Robert K Ryu Riad Salem Andrew C Larson Reed A Omary 2010World Journal of Gastroenterology2010,16,25:13
5Hepatocellular carcinoma: Review of disease and tumor biomarkers显示文摘Hepatocellular carcinoma(HCC) is a common malignancy and now the second commonest global cause of cancer death. HCC tumorigenesis is relatively silent and patients experience late symptomatic presentation. As the option for curative treatments is limited to early stage cancers, diagnosis in non-symptomatic individuals is crucial. International guidelines advise regular surveillance of high-risk populations but the current tools lack sufficient sensitivity for early stage tumors on the background of a cirrhotic nodular liver. A number of novel biomarkers have now been suggested in the literature, which may reinforce the current surveillance methods. In addition, recent metabonomic and proteomic discoveries have established specific metabolite expressions in HCC, according to Warburg's phenomenon of altered energy metabolism. With clinical validation, a simple and non-invasive test from the serum or urine may be performed to diagnose HCC, particularly benefiting low resource regions where the burden of HCC is highest.Jin Un Kim Mohamed I F Shariff Mary M E Crossey Maria Gomez-Romero Elaine Holmes I Jane Cox Haddy K S Fye Ramou Njie Simon D Taylor-Robinson 2016World Journal of Hepatology2016,8,10:13
6Photochemical smog in China:scientific challenges and implications for air-quality policies显示文摘INTRODUCTION Severe air-pollution events in many parts of China pose a major threat to health and ecosystems[1].China’s air pollution is concentrated to economically developed areas,such as Beijing–Tianjin–Hebei(BTH)and Pearl–River–Delta(PRD)[2,3].The situation has received considerable attention inMattias Hallquist John Munthe Min Hu Tao Wang Chak K Chan Jian Gao Johan Boman Song Guo Asa M Hallquist Johan Mellqvist Jana Moldanova Ravi K Pathak Jan BC Pettersson Hakan Pleijel David Simpson Marie Thynell 2016National Science Review2016,3,4:8
7Circular smooth muscle contributes to esophageal shortening during peristalsis显示文摘AIM:To study the angle between the circular smooth muscle(CSM) and longitudinal smooth muscle(LSM) fibers in the distal esophagus.METHODS:In order to identify possible mechanisms for greater shortening in the distal compared to proximal esophagus during peristalsis,the angles between the LSM and CSM layers were measured in 9 cadavers.The outer longitudinal layer of the muscularis propria was exposed after stripping the outer serosa.The inner circular layer of the muscularis propria was then revealed after dissection of the esophageal mucosa and the underlying muscularis mucosa.Photographs of each specimen were taken with half of the open esophagus folded back showing both the outer longitudinal and inner circular muscle layers.Angles were measured every one cm for 10 cm proximal to the squamocolumnar junction(SCJ) by two independent investigators.Two human esophagi were obtained from organ transplant donors and the angles between the circular and longitudinal smooth muscle layers were measured using micro-computed tomography(micro CT) and Image J software.RESULTS:All data are presented as mean ± SE.The CSM to LSM angle at the SCJ and 1 cm proximal to SCJ on the autopsy specimens was 69.3 ± 4.62 degrees vs 74.9 ± 3.09 degrees,P = 0.32.The CSM to LSM angle at SCJ were statistically significantly lower than at 2,3,4 and 5 cm proximal to the SCJ,69.3 ± 4.62 degrees vs 82.58 ± 1.34 degrees,84.04 ± 1.64 degrees,84.87 ± 1.04 degrees and 83.72 ± 1.42 degrees,P = 0.013,P = 0.008,P = 0.004,P = 0.009 respectively.The CSM to LSM angle at SCJ was also statistically significantly lower than the angles at 6,7 and 8 cm proximal to the SCJ,69.3 ± 4.62 degrees vs 80.18 ± 2.09 degrees,81.81 ± 1.75 degrees and 80.96 ± 2.04 degrees,P = 0.05,P = 0.02,P = 0.03 respectively.The CSM to LSM angle at 1 cm proximal to SCJ was statistically significantly lower than at 3,4 and 5 cm proximal to the SCJ,74.94 ± 3.09 degrees vs 84.04 ± 1.64 degrees,84.87 ± 1.04 degrees and 83.72 ± 1.42 degrees,P = 0.019,P = 0.008,P = 0.02 respectively.At 10 cm above SCJ the angle was 80.06 ± 2.13 degrees which is close to being perpendicular but less than 90 degrees.The CSM to LSM angles measured on virtual dissection of the esophagus and the stomach on micro CT at the SCJ and 1 cm proximal to the SCJ were 48.39 ± 0.72 degrees and 50.81 ± 1.59 degrees.Rather than the angle of the CSM and LSM being perpendicular in the esophagus we found an acute angulation between these two muscle groups throughout the lower 10 cm of the esophagus.CONCLUSION:The oblique angulation of the CSM may contribute to the significantly greater shortening of distal esophagus when compared to the mid and proximal esophagus during peristalsis.Anil K Vegesna Keng-Yu Chuang Ramashesai Besetty Steven J Phillips Alan S Braverman Mary F Barbe Michael R Ruggieri Larry S Miller 2012World Journal of Gastroenterology2012,18,32:7
8Trefoil factors in inflammatory bowel disease显示文摘Inflammatory bowel disease(IBD),which comprises ulcerative colitis and Crohn’s disease,is characterized by inflammation of the gastrointestinal tract.The trefoil factors 1,2,and 3(TFF1-3)are a family of peptides that play important roles in the protection and repair of epithelial surfaces,including the gastrointestinal tract.TFFs may be involved in IBD pathogenesis and are a potential treatment option.In the present review,we describe the TFF family and their potential role in IBD by summarizing the current knowledge of their expression,possible function and pharmacological role in IBD.Luise Aamann Else Marie Vestergaard Henning Grφnbk 2014World Journal of Gastroenterology2014,20,12:6
9Reproducibility of the diagnosis of dysplasia in Barrett esophagus: A reaffirmation显示文摘Elizabeth Montgomery Mary P Bronner John R Goldblum Joel K Greenson Marian M Haber John Hart Laura W Lamps Gregory Y Lauwers Audrey J Lazenby David N Lewin Marie E Robert Alicia Y Toledano Yu Shyr Kay Washington 2001Human Pathology2001,,4:3
10Prediction of delayed graft function using different scoring algorithms: A single-center experience显示文摘AIM To compare the performance of 3 published delayed graftfunction(DGF) calculators that compute the theoretical risk of DGF for each patient.METHODS This single-center,retrospective study included 247 consecutive kidney transplants from a deceased donor.These kidney transplantations were performed at our institution between January 2003 and December 2012.We compared the occurrence of observed DGF in our cohort with the predicted DGF according to three different published calculators. The accuracy of the calculators was evaluated by means of the c-index(receiver operating characteristic curve).RESULTS DGF occurred in 15.3% of the transplants under study.The c index of the Irish calculator provided an area under the curve(AUC) of 0.69 indicating an acceptable level of prediction,in contrast to the poor performance of the Jeldres nomogram(AUC = 0.54) and the Chapal nomogram(AUC = 0.51). With the Irish algorithm the predicted DGF risk and the observed DGF probabilities were close. The mean calculated DGF risk was significantly different between DGF-positive and DGF-negative subjects(P < 0.0001). However,at the level of the individual patient the calculated risk of DGF overlapped very widely with ranges from 10% to 51% for recipients with DGF and from 4% to 56% for those without DGF.The sensitivity,specificity and positive predictive value of a calculated DGF risk ≥ 30% with the Irish nomogram were 32%,91% and 38%. CONCLUSION Predictive models for DGF after kidney transplantation are performant in the population in which they were derived,but less so in external validations.Magda Michalak Kristien Wouters Erik Fransen Rachel Hellemans Amaryllis H Van Craenenbroeck Marie M Couttenye Bart Bracke Dirk K Ysebaert Vera Hartman Kathleen De Greef Thiery Chapelle Geert Roeyen Gerda Van Beeumen Marie-Paule Emonds Daniel Abramowicz Jean-Louis Bosmans 2017World Journal of Transplantation2017,7,5:3
11Clinical Presentation, Investigation, and Management of Pulmonary Vein Stenosis Complicating Ablation for Atrial Fibrillation显示文摘Douglas L. Packer Paul Keelan Thomas M. Munger Jerome F. Breen Sam Asirvatham Laura A. Peterson Kristi H. Monahan Mary F. Hauser K Chandrasekaran Lawrence J. Sinak David R. Holmes 2005Circulation2005,,5:2
12Patients undergoing infrainguinal bypass to treat atherosclerotic vascular disease are underprescribed cardioprotective medications: effect on graft patency, limb salvage, and mortality显示文摘Peter K Henke Susan Blackburn Mary C Proctor Jeri Stevens Debabrata Mukherjee Sanjay Rajagopalin Gilbert R Upchurch James C Stanley Kim A Eagle 2004Journal of Vascular Surgery2004,,:2
13Acanthus ilicifolius plant extract prevents DNA alterations in a transplantable Ehrlich ascites carcinoma-bearing murine model显示文摘AIM: To investigate the chemopreventive efficacy of the Indian medicinal plant Acanthus ilicifolius L Acanthaceae in a transplantable Ehrlich ascites carcinoma (EAC)- bearing murine model. METHODS: Male Swiss albino mice were divided into four groups: Group A was the untreated normal control; Group B was the EAC control mice group that received serial, intraperitoneal (ip) inoculations of rapidly proliferating 2 x 105 viable EAC cells in 0.2 mL of sterile phosphate buffered saline; Group C was the plant extract-treated group that received the aqueous leaf extract (ALE) of the plant at a dose of 2.5 mg/kg body weight by single ip injections, once daily for 10, 20 and 30 consecutive days following tumour inoculation (ALE control); and Group D was the EAC + ALE- treatment group. The chemopreventive potential of the ALE was evaluated in a murine model by studying various biological parameters and genotoxic markers, such as tumour cell count, mean survival of the animals, haematological indices, hepatocellular histology, immunohistochemical expression of liver metallothionein (MT) protein, sister-chromatid exchanges (SCEs), and DNA alterations.RESULTS: Treatment of the EAC-bearing mice with the ALE significantly (P < 0.001) reduced viable tumour cell count by 68.34% (228.7 x 106 ± 0.53) when compared to EAC control mice (72.4 x 106 ± 0.49), and restored body and organ weights almost to the normal values. ALE administration also increased (P < 0.001) mean survival of the hosts from 35 ± 3.46 d in EAC control mice to 83 ± 2.69 d in EAC + ALE-treated mice. Haematological indices also showed marked improvement with administration of ALE in EAC-bearing animals. There was a significant increase in RBC count (P < 0.001), hemoglobin percent (P < 0.001), and haematocrit value (P < 0.001) from 4.3 ± 0.12, 6.4 ± 0.93, and 17.63 ± 0.72 respectively in EAC control mice to 7.1 ± 0.13, 12.1 ± 0.77, and 30.23 ± 0.57 respectively in EAC + ALE-treated group, along with concurrent decrement (P < 0.001) in WBC count from 18.8 ± 0.54 in EAC control to 8.4 ± 0.71 in EAC + ALE. Furthermore, treatment with ALE substantially improved hepatocellular architecture and no noticeable neoplastic lesions or foci of cellular alteration were observed. Daily administration of the ALE was found to limit liver MT expression, an important marker of cell proliferation with concomitant reduction in MT immunoreactivity (62.25 ± 2.58 vs 86.24 ± 5.69, P < 0.01). ALE was also potentially effective in reducing (P < 0.001) the frequency of SCEs from 14.94 ± 2.14 in EAC control to 5.12 ± 1.16 in EAC + ALE-treated group. Finally, in comparison to the EAC control, ALE was able to suppress in vivo DNA damage by abating the generations of ‘tailed’ DNA by 53.59% (98.65 ± 2.31 vs 45.06 ± 1.14, P < 0.001), and DNA single-strand breaks (SSBs) by 38.53% (3.14 ± 0.31 vs 1.93 ± 0.23, P < 0.01) in EAC-bearing murine liver. CONCLUSION: Our data indicate that, ALE is beneficial in restoring haematological and hepatic histological profiles and in lengthening the survival of the animals against the proliferation of ascites tumour in vivo. Finally, the chemopreventive efficacy of the ALE is manifested in limiting MT expression and in preventing DNA alterations in murine liver. The promising results of this study suggest further investigation into the chemopreventive mechanisms of the medicinal plant A. ilicifolius in vivo and in vitro.Tridib Chakraborty Dipak Bhuniya Mary Chatterjee Mosiur Rahaman Dipak Singha Baidya Nath Chatterjee Subrata Datta Ajay Rana Kartick Samanta Sunil Srivastawa Sankar K Maitra Malay Chatterjee 2007World Journal of Gastroenterology2007,13,48:2
14Phytoplankton functional groups as indicators of human impacts along the River Loire (France)显示文摘András Abonyi Maria Leit?o Anne Marie Lan?on Judit Padisák 2012Hydrobiologia2012,,1:2
15Treating to New Targets (TNT) Study: does lowering low-density lipoprotein cholesterol levels below currently recommended guidelines yield incremental clinical benefit?显示文摘David D Waters John R Guyton David M Herrington Mary P McGowan Nanette K Wenger Charles Shear 2004The American Journal of Cardiology2004,,2:2
16Evidence for colorectal sarcomatoid carcinoma arising from tubulovillous adenoma显示文摘Sarcomatoid carcinomas of the colorectum are rare tu- mors that display both malignant epithelial and stromal components. Clinically, they are aggressive tumors with early metastasis. Due to their infrequent occurrence, the pathogenesis is poorly understood. We report a case of a 52-year-old woman who presented with a rectal mass and intermittent hematochezia. Superficial biopsies during colonoscopy revealed a tubulovillous adenoma with high-grade dysplasia. Endoscopic ultra- sonography confirmed an invasive nature of the mass, and deeper biopsies revealed the presence of neoplasm with mixed histological components. The surgically- excised specimen demonstrated the presence of poorly differentiated spindle cells underneath the tubulovillous adenoma and an intermediate stage of invasive adeno- carcinoma. Based on the histological appearance and immunohistochemical studies, a diagnosis of sarcoma- toid carcinoma was made. Only nine cases of sarcoma- toid carcinomas of the colorectum have been reported to date. As a result, the terminology and pathogenesis of sarcomatoid carcinoma remain speculative. To the best of our knowledge, this is the first report of co- existence of sarcomatoid carcinoma and invasive ad- enocarcinoma with tubulovillous adenoma; all stages represented within the same tumor. This observation supports the 'monoclonal theory' of pathogenesis with an adenoma-sarcoma progression with or without an intermediate stage of carcinoma.Jeffrey K Lee Pradipta Ghosh Valerie McWhorter Misty Payne Ryan Olson Mary L Krinsky Sonia Ramamoorthy John M Carethers 2008World Journal of Gastroenterology2008,14,27:2
17Recuperation of severe tumoral calcinosis in a dialysis patient: A case report显示文摘BACKGROUND One of the common late sequela in patients with end-stage renal disease(ESRD)is the calcium phosphate disorder leading to chronic hypercalcemia and hyperphosphatemia causing the precipitation of calcium salt in soft tissues.Tumoral calcinosis is an extremely rare clinical manifestation of cyst-like soft tissue deposits in different periarticular regions in patients with ESRD and is characterized by extensive calcium salt containing space-consuming painful lesions.The treatment of ESRD patients with tumoral calcinosis manifestation involves an increase in or switching of renal replacement therapy regimes and the adjustment of oral medication with the goal of improved hypercalcemia and hyperphosphatemia.CASE SUMMARY We describe a 40-year-old woman with ESRD secondary to IgA-nephritis and severe bilateral manifestation of tumoral calcinosis associated with hypercalcemia,hyperphosphatemia and tertiary hyperparathyroidism.The patient was on continuous ambulatory peritoneal dialysis and treatment with vitamin D analogues.After switching her to a daily hemodialysis schedule and adjusting the medical treatment,the patient experienced a significant dissolution of her soft tissue calcifications within a couple of weeks.Complete remission was achieved 11 mo after the initial diagnosis.CONCLUSION Reduced patient compliance and subsequent insufficiency of dialysis regime quality contribute to the aggravation of calcium phosphate disorder in a patient with ESRD leading to the manifestation of tumoral calcinosis.However,the improvement of the treatment strategy and reinforcement of patient compliance enabled complete remission of this rare disease entity.Lukas Westermann Lisa K Isbell Marie K Breitenfeldt Frederic Arnold Elvira Rothele Johanna Schneider Eugen Widmeier 2019World Journal of Clinical Cases2019,7,23:2
18Prognostic factors for a favorable outcome after varicocele repair in adolescents and adults显示文摘男富饶上的精索静脉曲张修理的效果仍然保持争论。它将对有用决定了哪个人将从精索静脉曲张修理有益于大多数,并且在那些个人指向修理努力。为精索静脉曲张修理的预示的因素上的文学的详细评论用 PubMed NLM 数据库被执行。我们发现 postvaricocelectomy 精液参数的最好的预言者是外科手术前的精液参数。在精液参数的最大的改进与更大的精索静脉曲张在人被发现。当有争吵,更高的睾丸激素,更年轻的年龄和更大的睾丸尺寸时,在一些,研究在精液参数 postvaricocelectomy 为改进预言。一张诺模图被开发了基于外科手术前的精液参数,精索静脉曲张等级和这个人(www.fertilitytreatmentresults.com ) 的年龄预言 postvaricocelectomy 精液参数。有限数据一致地与更高的基线 DNA 破碎率在人处于 DNA 破碎率表明最大的改进。关于繁殖结果,更高的基线精子密度一致地为自然怀孕或帮助繁殖技术(艺术) 怀孕率预言。另外,精索静脉曲张修理确实似乎为艺术的更侵略的形式减少需要。在结论,我们现在能开始使用象预言跟随 varicocelectomy 的修理以后的精液质量和富饶潜力的基线精液质量,精索静脉曲张等级和耐心的年龄那样的特定的参数。Mary K Samplaski Keith A Jarvi 2016Asian Journal of Andrology2016,18,2:2
19Effect of donor–recipient HLA matching at HLA A, B, C, and DRB1 on outcomes after umbilical-cord blood transplantation for leukaemia and myelodysplastic syndrome: a retrospective analysis显示文摘Mary Eapen John P Klein Guillermo F Sanz Stephen Spellman Annalisa Ruggeri Claudio Anasetti Maria Brown Richard E Champlin Joan Garcia-Lopez Gareth Hattersely Gesine Koegler Mary J Laughlin Gerard Michel Samir K Nabhan Franklin O Smith Mary M Horowitz Eli 2011Lancet Oncology2011,,13:2
20Mixed state geometric phases,entangled systems,and local unitary transforma-tions显示文摘 Pati A K SjOqvist E 2003Phys Rev Lett2003,91,9:1
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