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1Alcoholic disease: Liver and beyond显示文摘The harmful use of alcohol is a worldwide problem.It has been estimated that alcohol abuse represents the world’s third largest risk factor for disease and disability;it is a causal factor of 60 types of diseases and injuries and a concurrent cause of at least 200 others.Liver is the main organ responsible for metabolizing ethanol,thus it has been considered for long time the major victim of the harmful use of alcohol.Ethanol and its bioactive products,acetaldehyde-acetate,fatty acid ethanol esters,ethanol-protein adducts,have been regarded as hepatotoxins that directly and indirectly exert their toxic effect on the liver.A similar mechanism has been postulated for the alcohol-related pancreatic damage.Alcohol and its metabolites directly injure acinar cells and elicit stellate cells to produce and deposit extracellular matrix thus triggering the'necrosis-fibrosis'sequence that finally leads to atrophy and fibrosis,morphological hallmarks of alcoholic chronic pancreatitis.Even if less attention has been paid to the upper and lower gastrointestinal tract,ethanol produces harmful effects by inducing:(1)direct damaging of the mucosa of the esophagus and stomach;(2)modification of thesphincterial pressure and impairment of motility;and(3)alteration of gastric acid output.In the intestine,ethanol can damage the intestinal mucosa directly or indirectly by altering the resident microflora and impairing the mucosal immune system.Notably,disruption of the intestinal mucosal barrier of the small and large intestine contribute to liver damage.This review summarizes the most clinically relevant alcohol-related diseases of the digestive tract focusing on the pathogenic mechanisms by which ethanol damages liver,pancreas and gastrointestinal tract.Alba Rocco Debora Compare Debora Angrisani Marco Sanduzzi Zamparelli Gerardo Nardone 2014World Journal of Gastroenterology2014,20,40:27
2Hepatitis A:Epidemiology and prevention in developing countries显示文摘Hepatitis A is the most common form of acute viral hepatitis in the world.Major geographical differences in endemicity of hepatitis A are closely related to hygienic and sanitary conditions and other indicators of the level of socioeconomic development.The anti-hepatitis A virus(HAV)seroprevalence rate is presently decreasing in many parts of the world,but in less developed regions and in several developing countries,HAV infection is still very common in the first years of life and seroprev-alence rates approach 100%.In areas of intermediate endemicity,the delay in the exposure to the virus has generated a huge number of susceptible adolescents and adults and significantly increased the average age at infection.As the severity of disease increases with age,this has led to outbreaks of hepatitis A.Several factors contribute to the decline of the infection rate,including rising socioeconomic levels,increased access to clean water and the availability of a hepatitis A vaccine that was developed in the 1990s.For populations with a high proportion of susceptible adults,implementing vaccination programs may be considered.In this report,we review available epidemiological data and implementation of vaccination strategies,particularly focusing on developing countries.Elisabetta Franco Cristina Meleleo Laura Serino Debora Sorbara Laura Zaratti 2012World Journal of Hepatology2012,4,3:20
3Large Brunner's gland adenoma:Case report and literature review显示文摘Brunner 的腺腺瘤(BGA ) 是十二指肠的一个很稀罕的良性的瘤,它在内视镜检查法顺便说一下通常无征状、发现。偶尔,这损害可能大,引起上面的胃肠的出血或肠梗阻。盒子有大 Brunner 的腺腺瘤,介绍被内视镜的切除管理的│黑粪症。Alba Rocco PasqualeBorriello Debora Compare Patrizia DeColibus LoredanaPica GerardoNardone Alessandro Iacono 2006World Journal of Gastroenterology2006,12,12:16
4Participation of epididymal cysteine-rich secretory proteins in sperm-egg fusion and their potential use for male fertility regulation显示文摘老鼠蛋白质 DE 是一个雄激素依赖者充满半胱氨酸的能分泌的蛋白质(松脆) 由近似附睾区域综合了。DE,也作为 CRISP-1 知道,在反应 acrosome 的精子的赤道的片断上是局部性的并且通过绑定参予配偶子熔化到鸡蛋互补地点。有 DE 的老鼠的免疫禁止富饶和精子熔化能力,建议 DE 代表一个好附睾避孕药目标。Recombinant 整理碎片和合成的肽表明 DE 经由 anevolutionarily 保存的主题的一个 12-amino 酸区域绑在卵,签名 2 (S2 ) 。松脆的其它的能力与他们的 S2 氨基酸序列被相关绑在老鼠卵。尽管阴囊的蛋白质 Tpx-1 (CRISP-2 ) 能够到啮齿类动物卵的绑定,人的附睾的 AEG 相关的蛋白质(ARP ) 和 helothermine (从蜥蜴口水) 不。S2 区域在 Tpx-1 介绍了仅仅二替换并且四在 ARPand helothermine,与 DE S2 相比,建议这氨基酸定序为鸡蛋是相关的相互作用。有 Tpx-1 和 anti-Tpx-1 的研究在卵通过绑定在配偶子熔化揭示了这蛋白质的参予到互补地点。在比赛研究, DE dose-dependently 减少了 Tpx-1 的绑定,显示那两个松脆的份额卵互补地点。当认出仅仅相应蛋白质时,那 anti-DE 和 anti-Tpx-1 禁止精子鸡蛋熔化,建议在这些之间的功能的合作相应对松脆保证授精成功。这些结果增加我们配偶子熔化的分子的机制的理解并且贡献调整方法的新、更安全的富饶的发展。Debora J. Cohen Vanina G. Da Ros Dolores Busso Diego A. Ellerman Julieta A. Maldera Nadia Goldweic Patricia S. Cuasnicti 2007Asian Journal of Andrology2007,9,4:16
5Cancer stem cell hypothesis and gastric carcinogenesis: Experimental evidence and unsolved questions显示文摘Traditionally, the clonal evolution model has been used to explain gastric cancer (GC) growth dynamics. According to this model, GC cells result from multiple mutations over time resulting in a population of continually diversifying cells. This heterogeneity enables the survival of different clones under particular conditions allowing growth at metastatic locations or resistance to chemotherapeutics. Cancer stem cell (CSC) theory completely overturns this traditional understanding of cancer suggesting that only CSCs can self-renew and promote tumor growth. CSCs are relatively refractory to conventional therapies, thus explaining why anti-cancer therapies are far from curative and why relapses of cancer are frequent. The identification of the CSC component of a tumor might, thus, open new therapeutic perspective based on the selective targeting of this small population of cells. In this review we examine the current scientific evidence supporting the existence of CSC in gastric tumors and analyze the main unsolved questions of this difficult field of cancer research.Alba Rocco Debora Compare Gerardo Nardone 2012World Journal of Gastrointestinal Oncology2012,4,3:11
6Wound-Induced Shoot-to-Root Relocation of JA-Ile Precursors Coordinates Arabidopsis Growth显示文摘Multicellular organisms rely on the movement of signaling molecules across cells,tissues,and organs to communicate among distal sites.In plants,localized leaf damage activates jasmonic acid(JA)-dependent transcriptional reprogramming in both harmed and unharmed tissues.Although it has been indicated that JA species can translocate from damaged into distal sites,the identity of the mobile compound(s),the tissues through which they translocate,and the effect of their relocation remain unknown.Here,we found that following shoot wounding,the relocation of endogenous jasmonates through the phloem is essential to initiate JA signaling and stunt growth in unharmed roots of Arabidopsis thaliana.By employing grafting experiments and hormone profiling,we uncovered that the hormone precursor cis-12-oxo-phytodienoic acid(OPDA)and its derivatives,but not the bioactive JA-Ile conjugate,translocate from wounded shoots into undamaged roots.Upon root relocation,the mobile precursors cooperatively regulated JA responses through their conversion into JA-Ile and JA signaling activation.Collectively,our findings demonstrate the existence of long-distance translocation of endogenous OPDA and its derivatives,which serve as mobile molecules to coordinate shoot-to-root responses,and highlight the importance of a controlled redistribution of hormone precursors among organs during plant stress acclimation.Adina Schulze Marlene Zimmer Stefan Mielke Hagen Stellmach Charles WMelnyk Bettina Hause Debora Gasperini 2019Molecular Plant2019,12,10:7
7Screening for and surveillance of gastric cancer显示文摘Although the prevalence of gastric cancer(GC) progressively decreased during the last decades,due to improved dietary habit,introduction of food refrigeration and recovered socio-economic level,it still accounts for 10% of the total cancer-related deaths. The best strategy to reduce the mortality for GC is to schedule appropriate screening and surveillance programs,that rises many relevant concerns taking into account its worldwide variability,natural history,diagnostic tools,therapeutic strategies,and cost-effectiveness. Intestinal-type,the most frequent GC histotype,develops through a multistep process triggered by Helicobacter pylori(H. pylori) and progressing from gastritis to atrophy,intestinal metaplasia(IM),and dysplasia. However,the majority of patients infected with H. pylori and carrying premalignant lesions do not develop GC. Therefore,it remains unclear who should be screened,when the screening should be started and how the screening should be performed. It seems reasonable that screening programs should target the general population in eastern countries,at high prevalence of GC and the high-risk subjects in western countries,at low prevalence of GC.As far as concern surveillance,currently,we are lacking of standardized international recommendations and many features have to be defined regarding the optimal diagnostic approach,the patients at higher risk,the best timing and the cost-effectiveness.Anyway,patients with corpus atrophic gastritis,extensive incomplete IM and dysplasia should enter a surveillance program.At present,screening and surveillance programs need further studies to draw worldwide reliable recommendations and evaluate the impact on mortality for GC.Debora Compare Alba Rocco Gerardo Nardone 2014World Journal of Gastroenterology2014,20,38:5
8Molecular classifications of gastric cancers: Novel insights and possible future applications显示文摘Despite some notable advances in the systemic management of gastric cancer(GC), the prognosis of patients with advanced disease remains overall poor and their chance of cure is anecdotic. In a molecularly selected population, a median overall survival of 13.8 mo has been reached with the use of human epidermal growth factor 2(HER2) inhibitors in combination with chemotherapy, which has soon after become the standard of care for patients with HER2-overexpressing GC. Moreover, oncologists have recognized the clinical utility of conceiving cancers as a collection of different molecularlydriven entities rather than a single disease. Several molecular drivers have been identified as having crucial roles in other tumors and new molecular classifications have been recently proposed for gastric cancer as well. Not only these classifications allow the identification of different tumor subtypes with unique features, but also they serve as springboard for the development of different therapeutic strategies. Hopefully, the application of standard systemic chemotherapy, specifictargeted agents, immunotherapy or even surgery in specific cancer subgroups will help maximizing treatment outcomes and will avoid treating patients with minimal chance to respond, therefore diluting the average benefit. In this review, we aim at elucidating the aspects of GC molecular subtypes, and the possible future applications of such molecular analyses.Silvio Ken Garattini Debora Basile Monica Cattaneo Valentina Fanotto Elena Ongaro Marta Bonotto Francesca V Negri Rosa Berenato Paola Ermacora Giovanni Gerardo Cardellino Mariella Giovannoni Nicoletta Pella Mario Scartozzi Lorenzo Antonuzzo Nicola Silvestris Gianpiero Fasola Giuseppe Aprile 2017World Journal of Gastrointestinal Oncology2017,9,5:5
9Role of sex hormones in gastrointestinal motility in pregnant and non-pregnant rats显示文摘AIM: To correlate gastric contractility, gastrointestinal transit, and hormone levels in non-pregnant(estrous cycle) and pregnant rats using noninvasive techniques. METHODS: Female rats(n = 23) were randomly divided into(1) non-pregnant,(contractility, n =6; transit, n = 6); and(2) pregnant(contractility, n = 5; transit, n = 6). In each estrous cycle phase or at 0, 7, 14, and 20 d after the confirmation of pregnancy, gastrointestinal transit was recorded by AC biosusceptometry(ACB), and gastric contractility was recorded by ACB and electromyography. After each recording, blood samples were obtained for progesterone and estradiol determination. RESULTS: In the estrous cycle, despite fluctuations of sex hormone levels, no significant changes in gastrointestinal motility were observed. Days 7 and 14 of pregnancy were characterized by significant changes in the frequency of contractions(3.90 ± 0.42 cpm and 3.60 ± 0.36 cpm vs 4.33 ± 0.25 cpm) and gastric emptying(168 ± 17 min and 165 ± 15 min vs 113 ± 15 min) compared with day 0. On these same days, progesterone levels significantly increased compared with control(54.23 ± 15.14 ng/m L and 129.96 ± 30.52 ng/mL vs 13.25 ± 6.31 ng/mL). On day 14, we observed the highest level of progesterone and the lowest level of estradiol compared with day 0(44.3 ± 15.18 pg/mL vs 24.96 ± 5.96 pg/mL). CONCLUSION: Gastrointestinal motility was unaffected by the estrous cycle. In our data, high progesterone and low estradiol levels can be associated with decreased contraction frequency and slow gastric emptying.Juliana Fernandes Matos Madileine Francely Americo Yuri Karen Sinzato Gustavo Tadeu Volpato Luciana Aparecida Corá Marcos Felipe Freitas Calabresi Ricardo Brandt Oliveira Debora Cristina Damasceno Jose Ricardo Arruda Miranda 2016World Journal of Gastroenterology2016,22,25:5
10从附睾到卵子:CRISP蛋白在哺乳动物受精过程中的作用显示文摘哺乳动物的受精过程涉及精卵结合的很多步骤,是一个非常复杂的过程,其分了机制亟待阐明。此篇综述主要论述了CRISP(富含半胱氨酸的分泌蛋白)作为模型分子在哺乳动物受精过程中的价值。大量的体外实验和基因敲出模型研究显示,附睾内的CRISP1以两种不同的亲和力结合于精子表面,参与精子获能、精子-透明带结合、精卵融合的调控。这些研究成果可以延伸至人类。我们住研究中发现,人类具有与啮齿类同源的CRISP(hCRISP1),同样参与受精过样。CRISP家族的其他成员(睾丸内CRISP2、附挈内CRISP3—4、射精时的CRISP3)也参与了精卵结合的过程,提示同源分子间的相互协同有助于受精的成功。另外,我们的研究显示,CRISP蛋白伴随精子穿越男性及女性生殖管道的全过程。我们推测CRISP不仅参与了受精过程,而且可能成为不育和避孕研究的新靶点。Vanina G Da Ros Mariana Weigel Munoz Maria A Battistone Nicolas G Brukman Guillermo Carvajal Ludmila Curci Matlas D Gomez-Elias Debora J Cohen Patricia S Cuasnicu 2015Asian Journal of Andrology2015,17,5:5
11AngiotensinⅡor epinephrine hemodynamic and metabolic responses in the liver of L-NAME induced hypertension and spontaneous hypertensive rats显示文摘AIM To study hepatic vasoconstriction and glucose release induced by angiotensin(Ang)Ⅱ or Epi in rats with pharmacological hypertension and spontaneously hypertensive rat(SHR).METHODS Isolated liver perfusion was performed following portal vein and vena cava cannulation; AngⅡ or epinephrine(Epi) was injected in bolus and portal pressure monitored; glucose release was measured in perfusate aliquots. RESULTS The portal hypertensive response(PHR) and the glucose release induced by AngⅡ of L-NAME were similar to normal rats(WIS). On the other hand, the PHR inducedby Epi in L-NAME was higher whereas the glucose release was lower compared to WIS. Despite the similar glycogen content, glucose release induced by AngⅡ was lower in SHR compared to Wistar-Kyoto rats although both PHR and glucose release induced by Epi in were similar. CONCLUSION AngⅡ and Epi responses are altered in different ways in these hypertension models. Our results suggest that inhibition of NO production seems to be involved in the hepatic effects induced by Epi but not by AngⅡ; the diminished glucose release induced by AngⅡ in SHR is not related to glycogen content.Debora Conte Kimura Marcia Regina Nagaoka Durval Rosa Borges Maria Kouyoumdjian 2017World Journal of Hepatology2017,9,17:4
12Effects of high voltage electrical stimulation on the rate of pH decline,meat quality and color stability in chilled beef carcasses显示文摘Objective:To determine the effects of high voltage electrical stimulation(HVES,800 Voltage)on rapid decreases in pH values and improvements in meat quality.Methods:A total of SO beef carcasses were applied,divided into two groups,one as a control and another for HVES.Meat quality was evaluated based on M.hngissimus dorsi by examining pH and temperature leveb at 1,2,5,10 and 24 h,while color stability was examined seven days after slaughter.Results:HVES decreased the pH values of the meat and accelerated rigor mortis(P<0.05).HVES caused differences in instrumental color values compared with the control groups across the ageing period at 4℃.Conclusion:the HVES had positive effects on meat quality and color stability,in contrast to undesirable consumer preferences.Ehsan Gharib Mombeni Manoochehr Gharib Mombeini Lucas Chaves Figueiredo Luciano Soares Jacintho Siqueira Debora Testoni Dias 2013Asian Pacific Journal of Tropical Biomedicine2013,3,9:4
13Sustained virologic response to direct-acting antiviral agents predicts better outcomes in hepatitis C virus-infected patients: A retrospective study显示文摘BACKGROUND Direct-acting antiviral agents(DAAs)are extremely effective in eradicating hepatitis C virus(HCV)in chronically infected patients.However,the protective role of the sustained virologic response(SVR)achieved by second-and thirdgeneration DAAs against the onset of hepatocellular carcinoma(HCC)and mortality is less well established.AIM To examine the occurrence of HCC or death from any cause in a retrospectiveprospective study of patients treated with DAAs.METHODS Patients were enrolled from a tertiary academic hospital center for liver disease management that collects subject data mainly from northeastern Italy.The study was conducted in 380 patients(age:60±13 years,224 males,32%with cirrhosis)treated with DAAs with or without SVR(95/5%),with a median follow up of 58 wk(interquartile range:38-117).The baseline anthropometric features,HCV viral load,severity of liver disease,presence of extra-hepatic complications,coinfection with HIV and/or HBV,alcohol consumption,previous interferon use,alphafetoprotein levels,and renal function were considered to be confounders.RESULTS The incidence rate of HCC in patients with and without SVR was 1.3 and 59 per 100 person-years,respectively(incidence rate ratio:44,95%CI:15-136,P<0.001).Considering the combined endpoint of HCC or death from any cause,the hazard ratio(HR)for the SVR patients was 0.070(95%CI:0.025-0.194,P<0.001).Other independent predictors of HCC or death were low HCV viremia(HR:0.808,P=0.030),low platelet count(HR:0.910,P=0.041),and presence of mixed cryoglobulinemia(HR:3.460,P=0.044).Considering SVR in a multi-state model,the independent predictors of SVR achievement were absence of cirrhosis(HR:0.521,P<0.001)and high platelet count(HR:1.019,P=0.026).Mixed cryoglobulinemia predicted the combined endpoint in patients with and without SVR(HR:5.982,P=0.028 and HR:5.633,P=0.047,respectively).CONCLUSION DAA treatment is effective in inducing SVR and protecting against HCC or death.A residual risk of HCC persists in patients with advanced liver disease or with complications,such as mixed cryoglobulinemia or renal failure.Gian Luca Colussi Debora Donnini Rosario Francesco Brizzi Silvia Maier Luca Valenti Cristiana Catena Alessandro Cavarape Leonardo Alberto Sechi Giorgio Soardo 2019World Journal of Gastroenterology2019,25,40:4
14Efficacy of a therapeutic strategy for eradication of Helicobacter pylori infection显示文摘AIM: To determine the efficacy of our therapeutic strategy for Helicobacter pylori (H. pylori) eradication and to identify predictive factors for successful eradication. METHODS: From April 2006 to June 2010, we retrospectively assessed 2428 consecutive patients (1025 men, 1403 women; mean age 55 years, age range 18-92 years) with gastric histology positive for H. pylori infection referred to our unit for 13-C urea breath test(UBT), after first-line therapy with proton pump inhibitor (PPI) b.i.d. + amoxicillin 1 g b.i.d. + clarithromycin 500 mg b.i.d. for 7 d. Patients who were still positive to UBT were recommended a second-line therapy (PPI b.i.d. + amoxicillin 1 g b.i.d. + tinidazole 500 mg b.i.d. for 14 d). Third choice treatment was empirical with PPI b.i.d. + amoxicillin 1 g b.i.d. + levofloxacin 250 mg b.i.d. for 14 d. RESULTS: Out of 614 patients, still H. pylori-positive after first-line therapy, only 326 and 19 patients respectively rechecked their H. pylori status by UBT after the suggested second and third-line regimens. 'Per protocol' eradication rates for first, second and thirdline therapy were 74.7% (95% CI: 72.7%-76.4%), 85.3% (95% CI: 81.1%-89.1%) and 89.5% (95% CI: 74.9%-103%) respectively. The overall percentage of patients with H. pylori eradicated after two treatments was 97.8% (95% CI: 97.1%-98.4%), vs 99.9% (95% CI: 99.8%-100%) after three treatments. The study found that eradication therapy was most effective in patients with ulcer disease (P < 0.05, P = 0.028), especially in those with duodenal ulcer. Smoking habits did not significantly affect the eradication rate. CONCLUSION: First-line therapy with amoxicillin and clarithromycin produces an H. pylori eradication rate comparable or superior to other studies and secondline treatment can still be triple therapy with amoxicillin and tinidazole.Giuliana Sereni Francesco Azzolini Lorenzo Camellini Debora Formisano Francesco Decembrino Veronica Iori Cristiana Tioli Maurizio Cavina Francesco Di Mario Giuliano Bedogni Romano Sassatelli 2012World Journal of Gastroenterology2012,18,33:4
15Predictive value of elevated neutrophil–lymphocyte ratio on cardiac mortality in patients with stable coronary artery disease显示文摘Angela Papa Michele Emdin Claudio Passino Claudio Michelassi Debora Battaglia Franca Cocci 2008Clinica Chimica Acta2008,,1:3
16Efficacy of 5-Day Levofloxacin-Containing Concomitant Therapy in Eradication of Helicobacter pylori Infection显示文摘Alessandro Federico Gerardo Nardone Antonietta G. Gravina Maria Rosaria Iovene Agnese Miranda Debora Compare Paola A. Pilloni Alba Rocco Luigi Ricciardiello Riccardo Marmo Carmelina Loguercio Marco Romano 2012Gastroenterology2012,,1:3
17Pericyte-like differentiation of human adipose-derived mesenchymal stem cells:An in vitro study显示文摘BACKGROUND Adipose-derived mesenchymal stem cells(ASCs)are characterized by long-term self-renewal and a high proliferation rate.Under adequate conditions,they may differentiate into cells belonging to mesodermal,endodermal or ectodermal lineages.Pericytes support endothelial cells and play an important role in stabilizing the vessel wall at the microcirculation level.The loss of pericytes,as occurs in diabetic retinopathy,results in a breakdown of the blood-retina barrier(BRB)and infiltration of inflammatory cells.In this context,the use of pericytelike differentiated ASCs may represent a valuable therapeutic strategy for restoring BRB damage.AIM To test in vitro strategies to obtain pericyte-like differentiation of human ASCs(hASCs).METHODS Different culture conditions were tested:hASCs cultured in a basal medium supplemented with transforming growth factorβ1;and hASCs cultured in a specific pericyte medium(PM-hASCs).In a further sample,pericyte growth supplement was omitted from the PM.In addition,cultures of human retinal pericytes(hRPCs)were used for comparison.Pericyte-like differentiation of hASCs was tested by immunocytochemical staining and western blotting to evaluate the expression ofα-smooth muscle actin(α-SMA)and neural/glial antigen 2(NG2).Interactions between human retinal endothelial cells(hRECs)and different groups of hASCs were investigated in co-culture experiments.In these cases,the expression of typical junctional proteins such as vascular endothelial-Cadherin,zonula occludens-1 and Occludin were assessed in hRECs.In an in vitro model of the BRB,values of trans-endothelial electrical resistance were measured when hRECs were co-cultured with various groups of pretreated hASCs.The values observed were compared with co-cultures of hRECs and hRPCs as well as with cultures of hRECs alone.Three-dimensional co-cultures of hRECs and hRPCs or pericyte-like hASCs in Matrigel were designed to assess their reciprocal localization.RESULTS After 3-6 d of culture,α-SMA and NG2 immunocytochemistry showed that the closest pericyte-like phenotype was observed when hASCs were cultured in Pericyte Medium(PM-hASCs).In particular,α-SMA immunoreactivity,already visible at the basal level in pericytes and ASCs,was strongly increased only when transforming growth factor was added to the culture medium.NG2 expression,almost undetectable in most conditions,was substantially increased only in PMhASCs.Immunocytochemical results were confirmed by western blot analysis.The presence of pericyte growth supplement seems to increase NG2 expression rather thanα-SMA,in agreement with its role in maintaining pericytes in the proliferative state.In co-culture experiments,immunoreactivity of vascular endothelial-Cadherin,zonula occludens-1 and Occludin was considerably increased in hRECs when hRPCs or PM-hASCs were also present.Supporting results were found by trans-endothelial electrical resistance measurements,gathered at 3 and 6 d of co-culture.The highest resistance values were obtained when hRECs were co-cultured with hRPCs or PM-hASCs.The pericyte-like phenotype of PM-hASCs was also confirmed in three-dimensional co-cultures in Matrigel,where PM-hASCs and hRPCs similarly localized around the tubular formations made by hRECs.CONCLUSION PM-hASCs seem able to strengthen the intercellular junctions between hRECs,likely reinforcing the BRB;thus,hASC-based therapeutic approaches may be developed to restore the integrity of retinal microcirculation.Giuliana Mannino Florinda Gennuso Giovanni Giurdanella Federica Conti Filippo Drago Salvatore Salomone Debora Lo Furno Claudio Bucolo Rosario Giuffrida 2020World Journal of Stem Cells2020,12,10:3
18Correlations of CTLA‐4 gene polymorphisms and hepatitis C chronic infection显示文摘Debora L. S.Danilovic Maria C.Mendes‐Correa érika U.Lima HevertonZambrini RaffaelleK. Barros SuemiMarui 2012Liver Int2012,,5:2
19Pancreaticoduodenectomy in patients ≥ 75 years of age:Are there any differences with other age ranges in oncological and surgical outcomes? Results from a tertiary referral center显示文摘AIM To compare surgical and oncological outcomes after pancreaticoduodenectomy(PD) in patients ≥ 75 years of age with two younger cohorts of patients. METHODS The prospectively maintained Institutional database of pancreatic resection was queried for patients aged ≥ 75 years(late elderly, LE) submitted to PD for any disease from January 2010 to June 2015. We compared clinical, demographic and pathological features and survival outcomes of LE patients with 2 exact matched cohorts of younger patients [≥ 40 to 64 years of age(adults, A) and ≥ 65 to 74 years of age(young elderly, YE)] submitted to PD, according to selected variables. RESULTS The final LE population, as well as the control groups, were made of 96 subjects. Up to 71% of patients was operated on for a periampullary malignancy and pancreatic cancer(PDAC) accounted for 79% of them. Intraoperative data(estimated blood loss and duration of surgery) did not differ among the groups. The overall complication rate was 65.6%, 61.5% and 58.3% for LE, YE and A patients, respectively, P = NS). Reoperation and cardiovascular complications were significantly more frequent in LE than in YE and A groups(P = 0.003 and P = 0.019, respectively). When considering either all malignancies and PDAC only, the three groups did not differ in survival. Considering all benign diseases, the estimated mean survival was 58 and 78 mo for ≥ and < 75 years of age(YE + A groups), respectively(P = 0.012). CONCLUSION Age is not a contraindication for PD. A careful selection of LE patients allows to obtain good surgical and oncological results.Salvatore Paiella Matteo De Pastena Tommaso Pollini Giovanni Zancan Debora Ciprani Giulia De Marchi Luca Landoni Alessandro Esposito Luca Casetti Giuseppe Malleo Giovanni Marchegiani Massimiliano Tuveri Enrico Marrano Laura Maggino Erica Secchettin Deborah Bonamini Claudio Bassi Roberto Salvia 2017World Journal of Gastroenterology2017,23,17:2
20Long-term outcome of pancreatic function following oncological surgery in children:Institutional experience and review of the literature显示文摘BACKGROUND Pancreatic neoplasms are uncommon in children and in most cases they are benign or have low malignant potential.Pancreatoblastoma and solid pseudopapillary tumor are the most frequent types in early and late childhood,respectively.Complete resection,although burdened by severe complications,is the only curative treatment for these diseases.Pancreatic surgery may result in impaired exocrine and endocrine pancreatic function.However,limited data are available on the long-term pediatric pancreatic function following surgical resection.AIM To investigate endocrine and exocrine pancreatic function and growth after oncological pancreatic surgery in a pediatric series.METHODS A retrospective analysis of all pediatric patients who underwent surgery for pancreatic neoplasm in our Institution from January 31,2002 to the present was performed.Endocrine and exocrine insufficiency,auxological and fat-soluble vitamin status(A,D,E and clotting tests)were assessed at diagnosis and at every follow-up visit.Exocrine insufficiency was defined as steatorrhea with fecal elastase-1<200μg/g stool,while endocrine insufficiency was identified as onset of Diabetes or Impaired Glucose Tolerance.Growth was evaluated based on body mass index(BMI)z-score trend.RESULTS Sixteen patients(12 girls and 4 boys,mean age 10.7±5.3 years),were included.Nine patients(56%)had a neoplasm in the pancreatic head,4 in the body/tail,2 in the tail and 1 in the body.Histological findings were as follows:Solid pseudopapillary tumor in 10 patients(62.5%),insulinoma in 2 patients,neuroendocrine tumor in 2 patients and acinar cell carcinoma in 2 patients.The most frequent surgery was pancreaticoduodenectomy(50%).Exocrine failure occurred in 4 patients(25%)and endocrine failure in 2 patients(12.5%).Exocrine insufficiency occurred early(within 6 mo after surgery)and endocrine insufficiency later(8 and 10 years after surgery).Mean BMI z-score was 0.36±1.1 at diagnosis and 0.27±0.95 at the last assessment.Vitamin D was insufficient(<30 ng/mL)in 8 of the 16 patients during the follow-up period.Vitamins A,E and clotting test were into the normal ranges in all patients.CONCLUSION Careful and long-term monitoring should follow any pancreatic surgery,to recognize and promptly treat exocrine and endocrine pancreatic insufficiency,which can occur after surgery.Giulia Bolasco Teresa Capriati Chiara Grimaldi Lidia Monti Maria Debora De Pasquale Ippolita Patrizia Patera Marco Spada Giuseppe Maggiore Antonella Diamanti 2021World Journal of Clinical Cases2021,9,25:2
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