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MIS 5e sea surface temperature estimation;a multi-proxy approach using a marine macrofossil assemblage(Mar Piccolo,Gulf of Taranto,Southern Italy)

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Journal of Palaeogeography 2024年第2期13卷 327-350页

作者： Pierluigi Santagati Edoardo perri Maria Pia Bernasconi Mario Borrelli Salvatore Guerrieri Salvatore Critelli Dipartimento di Biologia Ecologia e Scienze della TerraUniversita della Calabriavia Pietro Bucci87036 Arcavacata di RendeCosenzaItaly Dipartimento di Ingegneria Ambientale Universita della Calabriavia Pietro Bucci87036 Arcavacata di RendeCosenzaItaly

It is reported a multi-proxy palaeoclimatic study conducted on a MIS 5e calcarenite from the Mar Piccolo Basin(MP),Gulf of Taranto(GT)(Central Mediterranean).The calcarenite returned a rich malacofauna consisting of 120 extant species,including four of the tropical Senegalese Fauna,today absent in the *** biogeographic-climatic affinity of the assemblage shows,compared to today,a double percentage of warm affinity species,while the cold affinity species are nearly equally represented,indicating a warmer but not strictly tropical *** is confirmed by the most recurring preferred SST ranges of the assemblage,indicating an average of 20℃.The skeletal compositions of five well-preserved molluscan and coral specimens were analyzed for trace elements and stable isotopes for further mean SST *** the comparison of the results of several equations available in literature,it appears that only some SST estimations are realistic,converging into similar values of,on average,20.8±0.9℃.Considering all the used proxies,the MIS 5e SST difference compared to today falls in the range 1.2—2.0℃for the GT(being a more reasonable scenario)and 2.0—2.8℃for the *** is not a firmly tropical-like SST setting as suggested by the sole Senegalese fauna,indicating at least 2.7℃—3.5℃more than today’s GT and MP,*** approximations and assumptions made for obtaining SST values with any single proxy indicate the need of a multi-proxy approach to define the best SST estimation.

关键词： MiS 5e Sea surface temperature Palaeoclimate proxy Fossil fauna Gulf of Taranto

Endoscopic ultrasound and magnetic resonance imaging for re-staging rectal cancer after radiotherapy

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World Journal of Gastroenterology 2009年第44期15卷 5563-5567页

作者： Gianni Mezzi Paolo Giorgio Arcidiacono Silvia Carrara Francesco perri Maria chiara Petrone Francesco De Cobelli Simone Gusmini Carlo Staudacher Alessandro Del Maschio Pier Alberto Testoni Gastroenterology and Gastrointestinal Endoscopy Unit IRCCS Vita-Salute UniversitySan Raffaele Scientific Institute20132 MilanItaly Gastroenterology Unit San Benedetto del Tronto Hospital63039 San Benedetto del Tronto (AP)Italy Alessandro Del Maschio Department of RadiologyIRCCS Vita-Salute UniversitySan Raffaele Scientific Institute20132 MilanItaly Department of Surgery IRCCS Vita-Salute UniversitySan Raffaele Scientific Institute20132 MilanItaly

AIM： To compare the sensitivity and specificity of two imaging techniques, endoscopic ultrasound （EUS） and magnetic resonance imaging （MRI）, in patients with rectal cancer after neoadjuvant chemoradiation therapy. And we compared EUS and MRI data with histological findings from surgical specimens. METHODS： Thirty-nine consecutive patients （51.3% Male; mean age： 68.2 ＋ 8.9 years） with histologically confirmed distal rectal cancer were examined for staging. All patients underwent EUS and MRI imaging before and after neoadjuvant chemoradiation therapy. RESULTS： After neoadjuvant chemoradiation, EUS and MRI correctly classified 46% （18/39） and 44% （17/39） of patients, respectively, in line with their histological T stage （P 〉 0.05）. These proportions were higher for both techniques when nodal involvement was considered： 69% （27/39） and 62% （24/39）. When patients were sorted into T and N subgroups, the diagnostic accuracy of EUS was better than MRI for patients with T0-T2 （44% vs 33%, P 〉 0.05） and NO disease （87% vs 52%, P = 0.013）. However, MRI was more accurate than EUS in T and N staging for patients with more advanced disease after radiotherapy, though these differences did not reach statistical significance. CONCLUSION： EUS and MRI are accurate imaging techniques for staging rectal cancer, However, after neoadjuvant RT-CT, the role of both methods in the assessment of residual rectal tumors remains uncertain.

关键词： Endoscopic ultrasound Magnetic resonance imaging Rectal cancer Neoadjuvant chemoradiation therapy Diagnostic accuracy

Chemical and minero-petrographical changes on granulite rocks affected by weathering processes

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Frontiers of Earth Science 2019年第2期13卷 247-261页

作者： Carmine APOLLARO Francesco perri Emilia LE PERA Ilaria FUOCO Teresa CRITELLI DiBEST University of Calabria1-87036 Arcavacata di Rende (CS)Italy

The purpose of this work is to study the weathering processes of the granulite rocks of the Serre Massif (southern Calabria,Italy) using a multidisciplinary approach based on field studies,geochemical modeling,and minero?petrographical *** granulite rocks are plagioclase-rich with minor amphibole,clinopyroxene,orthopyroxene,biotite,and garnet and their texture are *** reaction path modeling was performed to simulate the evolution of groundwaters upon interaction with local granulite by means of the software package EQ3/6,version *** were performed in kinetic (time) mode under a closed system at a constant temperature of 11.5℃,(which reproduces the average temperature of local area) and fixing the fugacity of CO2 at 10-2.34 bar (mean value).During the most advanced stage of weathering the main mineralogical changes are: partial destruction and transformation of biotite and plagioclase associated with neoformation of ferruginous products and secondary clay minerals producing a change in the origin rock *** secondary solid phases observed during the geochemical modeling (kaolinite,vermiculite and ferrihydrite) are similar to those found in this natural ***,the soil-like material mainly characterized by mostly sand to gravel grain-size fractions is the final result of the weathering processes.

关键词： Serre Massif granulitic rocks mineralogy petrography weathering profile reaction path-modeling

Non invasive evaluation of liver fibrosis in paediatric patients with nonalcoholic steatohepatitis

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World Journal of Gastroenterology 2006年第48期12卷 7821-7825页

作者： Angelo Iacobellis Matilde Marcellini Angelo Andriulli Francesco perri Gioacchino Leandro Rita Devito Valerio Nobili Division of Gastroenterology Hospital "Casa Sollievo della Sofferenza" IRCCS San Giovanni Rotondo Italy Liver Unit Bambino Gesu' Children's Hospital Rome Italy Division of Gastroenterology "De Bellis" Hospital IRCCS Castellana Grotte Italy Pathology Department Bambino Gesu' Children's Hospital Rome Italy

AIM: To identify the independent predictors of hepatic fibrosis in 69 children with nonalcoholic steatohepatitis (NASH) due to nonalcoholic fatty liver disease (NAFLD). METHODS: All patients with clinically suspected NASH underwent liver biopsy as a confirmatory test. The following clinical and biochemical variables at baseline were examined as likely predictors of fibrosis at histology: age, body mass index (BMI), systolic blood pressure (SBP), dyastolic blood pressure (DBP), fasting glucose, fasting insulin, homeostatic model assessment for insulin resistence (HOMA-IR), cholesterol, tryglicerides, alanine aminotransferase (ALT), aspartate aminotransferase (AST), AST/ALT ratio, gamma glutamil transferase (GT), platelet count, prothrombin time (PT). RESULTS: At histology 28 (40.6%) patients had no fibrosis and 41 (59.4%) had mild to bridging fibrosis. At multivariate analysis, BMI > 26.3 was the only independent predictor of fibrosis (OR = 5.85, 95% CI = 1.6-21). CONCLUSION: BMI helps identify children with NASH who might have fibrotic deposition in the liver.

关键词： Nonalcoholic steatohepatitis Obesity Bodymass index Liver fibrosis Non invasive diagnosis

Mitochondrial dysfunction in Parkinson＇s disease： a possible target for neuroprotection

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Frontiers in Biology 2014年第6期9卷 489-503页

作者： Jacqueline A. GLEAVE Peter D. perri Joanne E. NASH Centre for Neurobiology of Stress Department of Biological Sciences University of Toronto Scarborough Toronto Ontario M1C1A4Canada

Mitochondria are dynamic organelles which are required for maintaining cellular homeostasis. Thus, it is not surprising that irregularities in mitochondrial function result in cellular damage and are linked with neurodegenerative diseases, such as Parkinson＇s disease. Evidence that mitochondrial dysfunction is key to the pathogenesis of Parkinson＇s disease is founded in studies in post-mortem tissue from patients with Parkinson＇s disease, and also from genetic studies stemming from patients with familial Parkinson＇s disease. Whether triggered by environmental or genetic factors, mitochondrial dysfunction occurs early in the pathogenic process, and is central to Parkinson＇s disease pathology. As such, targeting the mitochondria to slow or halt disease progression is an attractive strategy for disease-modifying agents in Parkinson＇s disease. Indeed, several therapies which target the mitochondria have been investigated as neuroproteetive treatments for Parkinson＇s disease. This review will discuss the evidence supporting mitochondrial dysfunction in Parkinson＇s disease pathology as well as treatment strategies that target the mitochondria.

关键词： Parkinson's disease mitochondria oxidative stress lysosome UPS

Comparison of a monoclonal antigen stool test (Hp StAR) with the ^(13)C-urea breath test in monitoring Helicobacter pylori eradication therapy

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World Journal of Gastroenterology 2005年第37期11卷 5878-5881页

作者： Francesco perri Michele Quitadamo Rosalba Ricciardi Ada Piepoli Rosa Cotugno Annamaria Gentile Alberto Pilotto Angelo Andriulli Department of Internal Medicine Gastroenterology Unit "Casa Sollievo della Sofferenza" Hospital IRCCS San Giovanni Rotondo Italy Department of Internal Medicine Geriatrics Unit "Casa Sollievo della Sofferenza" Hospital IRCCS San Giovanni Rotondo Italy

AIM： To evaluate the agreement between a mAb-based stool test （HP STAR） and the urea breath test （UBT） in monitoring （H pylon） infection after eradication therapy. METHODS： Patients with discordant results on UBT and Hp STAR underwent endoscopy with biopsies for rapid urease test, culture, and histology to confirm H pylori status. RESULTS： Among 250 patients （50±14 years）, 240 （96.0%） had concordant UBT and Hp STAR tests with a significant correlation between DOB and A values （R = 0.87; P〈0.0001）. The remaining 10 （4.0%） patients had discordant tests （positive Hp STAR and negative UBT） with the Hp STAR inaccurate in five cases （false positive） and UBT inaccurate in the other five cases （false negative）. The “maximal expected” sensitivity, specificity, ＋PV, -PV, ＋LR, and -LR were 91%, 100%, 100%, 97.4%, ∞, and 8.2 respectively, for the UBT, and 100%, 97.4%, 91%, 100%, 38.8, and 0, respectively, for the Hp STAR. Overall accuracy for both tests was 98%. CONCLUSION： Both the UBT and the Hp StAR are equally accurate in monitoring H pylori infection. Nowadays, the choice of the “best” non-invasive H pylori test in the post-treatment setting should be done not only in terms of diagnostic accuracy but also in view of cost and local facilities.

关键词： Diagnosis Helicobacter pylor Stool antigen test Urea breath test

Lack of association between UGT1A7,UGT1A9,ARP,SPINK1 and CFTR gene polymorphisms and pancreatic cancer in Italian patients

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World Journal of Gastroenterology 2006年第39期12卷 6343-6348页

作者： Ada Piepoli Annamaria Gentile Maria Rosa Valvano Daniela Barana Cristina Oliani Rosa Cotugno Michele Quitadamo Angelo Andriulli Francesco perri Unit and Research Laboratory of Gastroenterology "Casa Sollievo della Sofferenza" Hospital IRCCS San Giovanni Rotondo Italy Cristina Oliani Department of Medical Oncology Hospital and University of Verona Verona Italy Oncology Unit ULSS5 Ovest Vicentino Verona Italy

AIM： To investigate simultaneously UGT1A7, UGT1A9, ARP, SPINK and CFTR genes to verify whether genetic polymorphisms predispose to the development of pancreatic cancer （PC）.METHODS： Genomic DNA of 61 pancreatic cancer patients and 105 healthy controls （HC） were analyzed. UGT1A7 genotyping was determined by PCR-RFLP analysis. Specific PCR and sequencing were used to analyze genetic variants of UGT1A9, ARP, SPINK1 and CFTR genes.RESULTS： Four different alleles （^＊1：WT; ＂2： N129K and R131K; ＂3： N129K, R131K, and W208R; and ＂4： W208R） in UGT1A7 and three different alleles （^＊1：WT;^＊4： Y242X; and ^＊5： D256N） in UGT1A9 were detected. All UGT1A polymorphisms were observed at similar frequency in PC patients and HC. Seven different alleles in ARP were found in PC patients and HC at similar frequency. The SPINK1 mutations N34S and P55S occurred in five PC patients with a prevalence （4.1%） not significantly different from that observed （2.0%） in HC. The only CFTR AFS08 mutation was recognized in three PC patients with a prevalence （4.9%） similar to HC.CONCLUSION： UGT1A7, UGT1A9, ARP, SPINK1 and CFTR gene polymorphisms are not associated with PC in Italian patients.

关键词： Pancreatic cancer Genetic polymorphisms Risk factors Sporadic

Oleuropein-Specific-β-Glucosidase Activity Marks the Early Response of Olive Fruits (Olea europaea) to Mimed Insect Attack

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Agricultural Sciences in China 2008年第6期7卷 703-712页

作者： Antonia Spadafora Silvia Mazzuca Francesca Fiorella Chiappetta Attilio Parise Enzo perri Anna Maria Innocenti Laboratorio di Citofisiologia Vegetale Dipartimento di Ecologia Cubo 6b Ponte Bucci Università della Calabria 87030 Rende (CS) Italy C.R.A. Centro di Ricerca per l'Olivicoltura e l'Industria Olearia Contrada Li Rocchi 87030 Rende Italy

Olive fruits are seriously deteriorated by pre and postharvest damage due to the attack of insects, such as Bactrocera olaea, which strongly alters the quality of olives. Defence response in olive fruits injured both by pathogens and by mechanical damages has been associated with the enzyme β-glucosidase, which specifically hydrolyses oleuropein, producing highly reactive aldehyde molecules. In situ detection of ^-glucosidase activity in olive fruit tissues following injury, which simulates Bactrocera oleae punctures, is reported. The assay was performed in two cultivars showing different degrees of susceptibilities to fly infestation. In both cultivars, the histochemical assay for β-glucosidase showed that within 20 min after the injury, a strong ^-glucosidase activity could be observed in the damaged tissues. Thereafter a progressive enzyme inactivation occurred starting from tissues around the boundary of the injury with decrease of the enzyme activity and stopped after 3 h. Whereas the mass of active cells reached a distance of （300±50） μm from the edge of the injury. Biochemical analyses showed that in extracts of the injured fruit, β-glucosidase activity rapidly increased within 20 min from injury, thereafter decreasing and reaching values comparable with those in intact fruits. Following puncture, the oleuropein contents did not change significantly in the high susceptibility cultivar, whereas it rapidly decreased in the cultivar showing low susceptibility. The results strongly suggest that olive fruits susceptible towards fly infestation could be related to the ability of the oleuropein-degrading-β-glucosidase to produce the highly reactive molecules in the damaged tissues. As a consequence of puncture, high level of peroxidase activity was detected. This feature also suggested that this enzyme could play a key role in the defence response against insect injuries.

关键词： β-glucosidase (EC 3.2.1.21) oleuropein Olea europaea Bactrocera oleae infestation cultivar resistance

If a Baby Has a Fever,Treatment All Depends

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科技英语学习 2009年第1期 7-9页

作者： perri Klass 刘广霞

对发烧的婴儿，不同月龄有不同的治疗方法。不足一个月的婴儿需住院治疗，三个月以上的婴儿要验血或验尿，但不必住院。而对于一至三个月的婴儿，要验血或验尿乃至进行细菌培养，以确定是否有感染、是否需要注射抗生素或住院。

关键词：英语教学翻译方法译文教学方法