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| 1 | Metabolic syndrome as a risk factor for gallstone disease显示文摘AIM: To establish an association between the presence of metabolic syndrome and the development of gallstone disease.METHOIDS: We carried out a cross-sectional study in a check-up unit in a university hospital in Mexico City. We enrolled 245 subjects, comprising 65 subjects with gallstones (36 women, 29 men) and 180 controls (79women and 101 men without gallstones). Body mass index, waist circumference, blood pressure, plasma insulin, and serum lipids and lipoproteins levels were measured. Insulin resistance was calculated by homeostasis model assessment. Unconditional logistic regressionanalysis (univariate and multivariate) was used to calculate the risk of gallstone disease associated with the presence of at least three of the criteria (Adult Treatment Panel Ⅲ). Analyses were adjusted for age and sex.RESULTS: Among 245 subjects, metabolic syndrome was present in 40% of gallstone disease subjects, compared with 17.2% of the controls, adjusted by age and gender (odds ratio (OR) = 2.79; 95%CI, 1.46-5.33; P = 0.002),a dose-dependent effect was observed with each component of metabolic syndrome (OR = 2.36, 95%CI, 0.72-7.71;P = 0.16 with one component and OR = 5.54, 95%CI,1.35-22.74; P = 0.02 with four components of metabolic syndrome). Homeostasis model assessment was significantly associated with gallstone disease (adjusted OR = 2.25;95%CI, 1.08-4.69; P = 0.03).CONCLUSION: We conclude that as for cardiovascular disease and diabetes mellitus, gallstone disease appears to be strongly associated with metabolic syndrome. | Nahum Méndez-Sánchez Norberto C. Chavez-Tapia Daniel Motola-Kuba Karla Sanchez-Lara Guadalupe Ponciano-Rodríguez Héctor Baptista Martha H. Ramos Misael Uribe | 2005 | World Journal of Gastroenterology2005，11，11： | 32 |
| 2 | Lepidium meyenii (Maca) improved semen parameters in adult men显示文摘Aim: The present study was designed to determine the effect of a 4-month oral treatment with tablets of Lepidium meyenii (Maca) on seminal analysis in nine adult normal men aged 24 - 44 years old. Methods: Nine men received tablets of Maca (1500 or 3000 mg/day) for 4 months. Seminal analysis was performed according to guidelines of the World Health Organization (WHO). Serum luteinizing hormone (LH), follicle stimulating hormone (FSH), prolactin (PRL), testosterone (T) and estradiol (E2) were measured before and after treatment. Results: Treatment with Maca resulted in increased seminal volume, sperm count per ejaculum, motile sperm count, and sperm motility. Serum hormone levels were not modified with Maca treatment. Increase of sperm count was not related to dose of Maca.Conclusion: Maca improved sperm production and sperm motility by mechanisms not related to LH, FSH, PRL, T and E2 . | Gustavo F.Gonzales Amanda Cordova Carla Gonzales Arturo Chung Karla Vega Arturo Villena | 2001 | Asian Journal of Andrology2001，3，4： | 23 |
| 3 | Osteopontin increases hepatocellular carcinoma cell growth in a CD44 dependant manner显示文摘AIM:To investigate the role of osteopontin(OPN) and its splice variants in the proliferation of hepatocellular carcinoma(HCC).METHODS:The expression of OPN variants in HCC cell lines as well as HCC tissue samples and nontumour tissue was studied using polymerase chain reaction.OPN variant cDNAs were cloned into a mammalian expression vector allowing both transient expression and the production of stable OPN expressing cell lines.OPN expression was studied in these cells using Western blotting,immunofluoresnce and enzyme linked immunosorbent assay.A CD44 blocking antibody and siRNA targeting of CD44 were used to examine the role of this receptor in the OPN stimulated cell growth observed in culture.Huh-7 cells stably expressing either OPN-A,-B or-C were injected subcutaneously into the flanks of nude mice to observe in vivo tumour growth.Expression of OPN mRNA and protein in these tumours was examined using reverse transcriptionpolymerase chain reaction and immunohistochemistry.RESULTS:OPN is expressed in HCC in 3 forms,the full length OPN-A and 2 splice variants OPN-B and-C.OPN variant expression was noted in HCC tissue as well as cognate surrounding cirrhotic liver tissue.Expression of these OPN variants in the HCC derived cell line Huh-7 resulted in secretion of OPN into the culture medium.Transfer of OPN conditioned media to na ve Huh-7 and HepG2 cells resulted in significant cell growth suggesting that all OPN variants can modulate cell proliferation in a paracrine manner.Furthermore the OPN mediated increase in cellular proliferation was dependent on CD44 as only CD44 positive cell lines responded to OPN conditioned media while siRNA knockdown of CD44 blocked the proliferative effect.OPN expression also increased the proliferation of Huh-7 cells in a subcutaneous nude mouse tumour model,with Huh-7 cells expressing OPN-A showing the greatest proliferative effect.CONCLUSION:This study demonstrates that OPN plays a significant role in the proliferation of HCC through interaction with the cell surface receptor CD44.Modulation of this interaction could represent a novel strategy for the control of HCC. | Renee J Phillips Karla J Helbig Kylie H Van der Hoek Devanshi Seth Michael R Beard | 2012 | World Journal of Gastroenterology2012，18，26： | 12 |
| 4 | Challenges to the early diagnosis and treatment of breast cancer in developing countries显示文摘This critical review of the literature assembles and compares available data on breast cancer clinical stage, time intervals to care, and access barriers in different countries. It provides evidence that while more than 70% of breast cancer patients in most high-income countries are diagnosed in stages Ⅰ and Ⅱ, only 20%-50% patients in the majority of low- and middleincome countries are diagnosed in these earlier stages. Most studies in the developed world show an association between an advanced clinical stage of breast cancer and delays greater than three months between symptom discovery and treatment start. The evidence assembled in this review shows that the median of this interval is 30-48 d in high-income countries but 3-8 mo in low- and middle-income countries. The longest delays occur between the first medical consultation and the beginning of treatment, known as the provider interval. The little available evidence suggests that access barriers and quality deficiencies in cancer care are determinants of provider delay in low- and middle-income countries. Research on specific access barriers and deficiencies in quality of care for the early diagnosis and treatment of breast cancer is practically non-existentin these countries, where it is the most needed for the design of cost-effective public policies that strengthen health systems to tackle this expensive and deadly disease. | Karla Unger-Salda?a | 2014 | World Journal of Clinical Oncology2014，5，3： | 12 |
| 5 | Adiponectin as a protective factor in hepatic steatosis显示文摘AIM: Obesityand insulin resistance (IR) are closely related to hepatic steatosis (HS), and adiponectin is a hepatic insulin sensitizer that has important effects in liver function.This study aims at investigating the relationship between serum adiponectin concentration and the presence of HS.METHODS: We carried out a cross-sectional study in a check-up unit of a University Hospital in Mexico City. We enrolled 196 subjects, comprising 98 subjects with HS (27 women, 71 men) and 98 controls (37 women and 61men). Anthropometric, metabolic and biochemical variables were measured in the two groups. Serum adiponectin and leptin concentrations were determined,their association with grade of HS tested, and concentrations,according to quartiles, compared between cases and controls. χ2 analysis for linear trends was used to test for a dose-response relationship and logistic regression analysis was conducted to test for a protective effect of adiponectin.RESULTS: The HS subjects were older and more obese than controls, with a central obesity pattern. In the fourth quartile of adiponectin concentrations, HS was less common and severe. In a multivariate model of the fourth quartile of the adiponectin concentrations, we observed a protective effect (OR = 0.17, 95%CI: 0.04-0.67, P= 0.01).In subjects with more severe HS, we observed higher leptin concentrations, and caloric intakes, total fat and iron consumption were higher than in controls.CONCLUSION: The results of the present study suggest that a high serum concentration of adiponectin is associated with a protective effect against HS. | Nahum Méndez-Sánchez Norberto C.Chávez-Tapia Antonio R.Villa Karla Sánchez-Lara Daniel Zamora-Valdés Martha H.Ramos Misael Uribe | 2005 | World Journal of Gastroenterology2005，11，12： | 12 |
| 6 | Estimating steatosis and fibrosis: Comparison of acoustic structure quantification with established techniques显示文摘AIM:To compare ultrasound-based acoustic structure quantification(ASQ) with established non-invasive techniques for grading and staging fatty liver disease.METHODS:Type 2 diabetic patients at risk of nonalcoholic fatty liver disease(n = 50) and healthy volunteers(n = 20) were evaluated using laboratory analysis and anthropometric measurements, transient elastography(TE), controlled attenuation parameter(CAP), proton magnetic resonance spectroscopy(1H-MRS; only available for the diabetic cohort), and ASQ.ASQ parameters mode, average and focal disturbance(FD) ratio were compared with:(1) the extent of liver fibrosis estimated from TE and nonalcoholic fatty liver disease(NAFLD) fibrosis scores; and(2) the amount of steatosis, which was classified according to CAP values.RESULTS:Forty-seven diabetic patients(age 67.0±8.6 years;body mass index 29.4±4.5 kg/m2)with reliable CAP measurements and all controls(age 26.5±3.2 years;body mass index 22.0±2.7 kg/m2)were included in the analysis.All ASQ parameters showed differences between healthy controls and diabetic patients(P<0.001,respectively).The ASQ FD ratio(logarithmic)correlated with the CAP(r=-0.81,P<0.001)and 1H-MRS(r=-0.43,P=0.004)results.The FD ratio[CAP<250 d B/m:107(102-109),CAP between 250 and 300 d B/m:106(102-114);CAP between 300 and 350 d B/m:105(100-112),CAP≥350 d B/m:102(99-108)]as well as mode and average parameters,were reduced in cases with advanced steatosis(ANOVA P<0.05).However,none of the ASQ parameters showed a significant difference in patients with advanced fibrosis,as determined by TE and the NAFLD fibrosis score(P>0.08,respectively).CONCLUSION:ASQ parameters correlate with steatosis,but not with fibrosis in fatty liver disease.Steatosis estimation with ASQ should be further evaluated in biopsy-controlled studies. | Thomas Karlas Joachim Berger Nikita Garnov Franziska Lindner Harald Busse Nicolas Linder Alexander Schaudinn Bettina Relke Rima Chakaroun Michael Trltzsch Johannes Wiegand Volker Keim | 2015 | World Journal of Gastroenterology2015，21，16： | 9 |
| 7 | Beneficial effects of nutritional supplements on intestinal epithelial barrier functions in experimental colitis models in vivo显示文摘Acute and chronic colitis affect a huge proportion of the population world-wide.The etiology of colitis cases can be manifold,and diet can significantly affect onset and outcome of colitis.While many forms of acute colitis are easily treatable,chronic forms of colitis such as ulcerative colitis and Crohn’s disease(summarized as inflammatory bowel diseases)are multifactorial with poorly understood pathogenesis.Inflammatory bowel diseases are characterized by exacerbated immune responses causing epithelial dysfunction and bacterial translocation.There is no cure and therapies aim at reducing inflammation and restoring intestinal barrier function.Unfortunately,most drugs can have severe side effects.Changes in diet and inclusion of nutritional supplements have been extensively studied in cell culture and animal models,and some supplements have shown promising results in clinical studies.Most of these nutritional supplements including vitamins,fatty acids and phytochemicals reduce oxidative stress and inflammation and have shown beneficial effects during experimental colitis in rodents induced by dextran sulphate sodium or 2,4,6-trinitrobenzene sulfonic acid,which remain the gold standard in pre-clinical colitis research.Here,we summarize the mechanisms through which such nutritional supplements contribute to epithelial barrier stabilization. | Hilda Vargas-Robles Karla Fabiola Castro-Ochoa Alí Francisco Citalán-Madrid Michael Schnoor | 2019 | World Journal of Gastroenterology2019，25，30： | 5 |
| 8 | Acoustic radiation force impulse imaging (ARFI) for non-invasive detection of liver fibrosis: examination standards and evaluation of interlobe differences in healthy subjects and chronic liver disease显示文摘 | Thomas Karlas Cornelia Pfrepper Johannes Wiegand Christian Wittekind Marie Neuschulz Joachim M?ssner Thomas Berg Michael Tr?ltzsch Volker Keim | 2011 | Scandinavian Journal of Gastroenterology2011，，12： | 4 |
| 9 | Induced pluripotent stem cells throughout the animal kingdom:Availability and applications显示文摘Up until the mid 2000s, the capacity to generate every cell of an organism was exclusive to embryonic stem cells. In 2006, researchers Takahashi and Yamanaka developed an alternative method of generating embryonic-like stem cells from adult cells, which they coined induced pluripotent stem cells (iPSCs). Such iPSCs possess most of the advantages of embryonic stem cells without the ethical stigma associated with derivation of the latter. The possibility of generating “custom-made” pluripotent cells, ideal for patient-specific disease models, alongside their possible applications in regenerative medicine and reproduction, has drawn a lot of attention to the field with numbers of iPSC studies published growing exponentially. IPSCs have now been generated for a wide variety of species, including but not limited to, mouse, human, primate, wild felines, bovines, equines, birds and rodents, some of which still lack well-established embryonic stem cell lines. The paucity of robust characterization of some of these iPSC lines as well as the residual expression of transgenes involved in the reprogramming process still hampers the use of such cells in species preservation or medical research, underscoring the requirement for further investigations. Here, we provide an extensive overview of iPSC generated from a broad range of animal species including their potential applications and limitations. | Lais Vicari de Figueiredo Pessoa Fabiana Fernandes Bressan Kristine Karla Freude | 2019 | World Journal of Stem Cells2019，11，8： | 4 |
| 10 | Association of Nutrition Parameters Including Bioelectrical Impedance and Systemic Inflammatory Response With Quality of Life and Prognosis in Patients With Advanced Non-Small-Cell Lung Cancer: A Prospective Study显示文摘 | Karla Sánchez-Lara JennyG Turcott Eva Juárez Patricia Guevara Carolina Nú?ez-Valencia LuisF. O?ate-Oca?a Diana Flores Oscar Arrieta | 2012 | Nutrition and Cancer2012，，4： | 3 |
| 11 | Randomized trial of mediastinal lymph node sampling versus complete lymphadenectomy during pulmonary resection in the patient with N0 or N1 (less than hilar) non–small cell carcinoma: Results of the American College of Surgery Oncology Group Z0030 Trial显示文摘 | Gail E. Darling Mark S. Allen Paul A. Decker Karla Ballman Richard A. Malthaner Richard I. Inculet David R. Jones Robert J. McKenna Rodney J. Landreneau Valerie W. Rusch Joe B. Putnam | 2011 | The Journal of Thoracic and Cardiovascular Surgery2011，，3： | 3 |
| 12 | Adjuvant imatinib mesylate after resection of localised, primary gastrointestinal stromal tumour: a randomised, double-blind, placebo-controlled trial显示文摘 | Ronald P DeMatteo Karla V Ballman Cristina R Antonescu Robert G Maki Peter WT Pisters George D Demetri Martin E Blackstein Charles D Blanke Margaret von Mehren Murray F Brennan Shreyaskumar Patel Martin D McCarter Jonathan A Polikoff Benjamin R Tan Kouros | 2009 | The Lancet2009，，9669： | 2 |
| 13 | Non-invasive evaluation of hepatic manifestation in Wilson disease with transient elastography, ARFI, and different fibrosis scores显示文摘 | Thomas Karlas Maria Hempel Michael Tr?ltzsch Dominik Huster Peter Günther Hannelore Tenckhoff Joachim M?ssner Thomas Berg Volker Keim Johannes Wiegand | 2012 | Scandinavian Journal of Gastroenterology2012，，11： | 2 |
| 14 | Nanosilver as a new generation of nanoproduct in biomedical applications显示文摘 | Karla Chaloupka Yogeshkumar Malam Alexander M. Seifalian | 2010 | Trends in Biotechnology2010，，11： | 2 |
| 15 | Enrichment of retinal ganglion and Müller glia progenitors from retinal organoids derived from human induced pluripotent stem cells-possibilities and current limitations显示文摘BACKGROUND Retinal organoids serve as excellent human-specific disease models for conditions affecting otherwise inaccessible retinal tissue from patients.They permit the isolation of key cell types affected in various eye diseases including retinal ganglion cells(RGCs)and Müller glia.AIM To refine human-induced pluripotent stem cells(hiPSCs)differentiated into threedimensional(3D)retinal organoids to generate sufficient numbers of RGCs and Müller glia progenitors for downstream analyses.METHODS In this study we described,evaluated,and refined methods with which to generate Müller glia and RGC progenitors,isolated them via magnetic-activated cell sorting,and assessed their lineage stability after prolonged 2D culture.Putative progenitor populations were characterized via quantitative PCR and immunocytochemistry,and the ultrastructural composition of retinal organoid cells was investigated.RESULTS Our study confirms the feasibility of generating marker-characterized Müller glia and RGC progenitors within retinal organoids.Such retinal organoids can be dissociated and the Müller glia and RGC progenitor-like cells isolated via magnetic-activated cell sorting and propagated as monolayers.CONCLUSION Enrichment of Müller glia and RGC progenitors from retinal organoids is a feasible method with which to study cell type-specific disease phenotypes and to potentially generate specific retinal populations for cell replacement therapies. | Kristine Karla Freude Sarkis Saruhanian Alanna McCauley Colton Paterson Madeleine Odette Annika Oostenink Poul Hyttel Mark Gillies Henriette Haukedal Miriam Kolko | 2020 | World Journal of Stem Cells2020，12，10： | 2 |
| 16 | Removal of carbofuran is not affected by co-application of chlorpyrifos in a coconut fiber/compost based biomixture after aging or pre-exposure显示文摘Biomixtures constitute the biologically active part of biopurification systems(BPS), which are used to treat pesticide-containing wastewater. The aim of this work was to determine whether co-application of chlorpyrifos(CLP) affects the removal of carbofuran(CFN)(both insecticide/nematicides) in a coconut fiber–compost–soil biomixture(FCS biomixture), after aging or previous exposure to CFN. Removal of CFN and two of its transformation products(3-hydroxycarbofuran and 3-ketocarbofuran) was enhanced in pre-exposed biomixtures in comparison to aged biomixtures. The co-application of CLP did not affect CFN removal, which suggests that CLP does not inhibit microbial populations in charge of CFN transformation.Contrary to the removal behavior, mineralization of radiolabeled14C-pesticides showed higher mineralization rates of CFN in aged biomixtures(with respect to freshly prepared or pre-exposed biomixtures). In the case of CLP, mineralization was favored in freshly prepared biomixtures, which could be ascribed to high sorption during aging and microbial inhibition by CFN in pre-exposure. Regardless of removal and mineralization results, toxicological assays revealed a steep decrease in the acute toxicity of the matrix on the microcrustacean Daphnia magna(over 97%) after 8 days of treatment of individual pesticides or the mixture CFN/CLP.Results suggest that FCS biomixtures are suitable to be used in BPS for the treatment of wastewater in fields where both pesticides are employed. | Juan Salvador Chin-Pampillo Mario Masís-Mora Karla Ruiz-Hidalgo Elizabeth Carazo-Rojas Carlos E.Rodríguez-Rodríguez | 2016 | Journal of Environmental Sciences2016，28，8： | 2 |
| 17 | Locoregional Recurrence After Sentinel Lymph Node Dissection With or Without Axillary Dissection in Patients With Sentinel Lymph Node Metastases: The American College of Surgeons Oncology Group Z0011 Randomized Trial显示文摘 | Armando E. Giuliano Linda McCall Peter Beitsch Pat W. Whitworth Peter Blumencranz A. Marilyn Leitch Sukamal Saha Kelly K. Hunt Monica Morrow Karla Ballman | 2010 | Annals of Surgery2010，，3： | 2 |
| 18 | The prevalence of weight loss during (chemo)radiotherapy treatment for lung cancer and associated patient- and treatment-related factors显示文摘 | Nicole Kiss Elisabeth Isenring Karla Gough Meinir Krishnasamy | 2013 | Clinical Nutrition2013，，： | 2 |
| 19 | Protective association of aspirin/NSAIDs and esophageal cancer: A systematic review and meta-analysis显示文摘 | Douglas A. Corley Karla Kerlikowske Rajiv Verma Patricia Buffler | 2003 | Gastroenterology2003，，1： | 2 |
| 20 | Evaluating the impact of human papillomavirus vaccines显示文摘 | Yuli Chang Noel T. Brewer Allen C. Rinas Karla Schmitt Jennifer S. Smith | 2009 | Vaccine2009，，32： | 2 |
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