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Management of occult hepatitis B virus infection:An update for the clinician

World Journal of Gastroenterology 2011年第12期17卷 1563-1568页

作者： JoséLuis Lledó Conrado Fernández María Luisa Gutiérrez sara ocaa Gastroenterology Unit Hospital Universitario Fundación AlcorcónAv Budapest-128922 AlcorcónMadridSpain Laboratory Unit Hospital Universitario Fundación AlcorcónAv Budapest-128922 AlcorcónMadridSpain

Occult hepatitis B virus(HBV) infection(OBI) is defined by the presence of HBV DNA in the liver tissue of individuals who test negative for hepatitis B surface antigen(HBsAg).Patients who have recovered from acute hepatitis B can carry HBV genomes for a long time and show histological patterns of mild necro-inflammation,even fibrosis,years after the resolution of acute hepatitis,without showing any clinical or biochemical evidence of liver *** least in conditions of immunocompetence,OBI is inoffensive itself,but when other relevant causes of liver damage are present it might make the course of the liver disease *** risk of HBV transmission through transfusion is related to blood donations negative for HBsAg that have been collected during the pre-seroconversion period or during chronic *** of HBV nucleic acid amplification testing and multivalent anti-HBs antibodies in the HBsAg assays is recommended for detection of true and false OBI,*** is not known if prior hepatitis B immunization with an optimal anti-HBs response in cases of HBV transmission through organ transplantation can effectively modulate or abort the *** of anti-viral agents as prophylaxis in patients with serological evidence of past HBV infection prevents reactivation of OBI after transplantation in most *** of OBI has been observed in other conditions that cause immunosuppression,in which antiviral therapy could be delayed until the HBV DNA or HBsAg becomes *** might contribute to the progression of liver fibrosis and hepatocellular carcinoma development in patients with chronic liver disease.

关键词： Occult hepatitis B Management Blood transfusion Organ transplantation Virus reactivation Chronic liver disease Hepatocellular carcinoma

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Synthesis and Properties of Biomimetic Self-Assembling Structures from Poultry Feather Keratin

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Journal of Renewable Materials 2025年第1期13卷 1-19页

作者： sara Mattiello Carlo Santulli School of Science and Technology Universitàdi Camerinovia Gentile III da Varano 7Camerino62032Italy

Taking a widely contaminated yet abundant waste,such as poultry feathers,and extracting keratin from this struc-ture appears to be a real challenge whenever the preservation of the secondary structure of the protein is *** process would allow exploiting it in ways(e.g.,in the biomedicalﬁeld)that are inspired by a structure that is primarily designed forﬂight,therefore capable speciﬁcally of withstandingﬂexure and lateral buckling,also with very low *** preservation of the structure is based on disulﬁde crosslinks,and it is offered with pre-ference by some chemical treatments,mainly those based on ionic liquid and on a reduction ***,the degree of preservation cannot always be precisely assessed;however,beyond chemical characterization,the forma-tion of homogeneous gels can also suggest that the process was successful in this *** extraction respectful of nature’s intentions,considering that the secondary structure builds up according to the very function of the feath-ers in the animal,can be deemed to be *** particular,biomimetic extractions comply with the very characteristics the protein was designed for to serve in the speciﬁc environmental and mechanical situation in which it is *** review tries to elucidate in which cases this aim is achieved and for which speciﬁc appli-cations a chicken feather keratin that has preserved its secondary structure can be suited.

关键词： Keratin extraction secondary structure self-assembly chicken feathers

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The complex role of protocadherin-19 in brain function:a focus on the oxytocin system

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Neural Regeneration Research 2025年第11期20卷 3211-3212页

作者： sara Mazzoleni Marta Busnelli Silvia Bassani CNR Institute of Neuroscience Vedano al LambroItaly NeuroMi Milan Center for Neuroscience MilanItaly

Mutations in the protocadherin-19(PCDH19)gene(Xq22.1)cause the X-linked syndrome known as developmental and epileptic encephalopathy 9(DEE9,OMIM#300088)(Dibbens et al.,2008).DEE9 is characterized by early-onset clustering epilepsy associated with intellectual disability ranging from mild to profound,autism spectrum disorder,and other neuropsychiatric features including schizophrenia,anxiety,attentiondeficit/hyperactivity,and obsessive or aggressive *** seizures may become less frequent in adolescence,psychiatric comorbidities persist and often worsen with age(Dibbens et al.,2008;Kolc et al.,2020).

关键词： epilepsy function system

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Shear strength characteristics of mixing slag-stone ballast reinforcement with tire geo-scrap using large-scale direct shear tests

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Railway Engineering Science 2025年第1期33卷 94-107页

作者： Morteza Esmaeili Hamidreza Heydari Maziar Mokhtari sara Darvishi School of Railway Engineering Iran University of Science and TechnologyTehranIran

Utilizing the ballast layer with more durable and stable characteristics can help avoid significant expenses due to decreased maintenance *** the ballast layer with different types of reinforcements or substituting the stone aggregates with the appropriate granular materials could potentially help to achieve this goal by reducing the ballast *** of the exquisite and most effective solutions to eliminate these challenges is to use waste materials such as steel slag aggregates and useless *** these waste materials in the ballasted railway track will contribute to sustainable development,an eco-friendly system,and green *** in a state-of-the-art insightful,the ballast aggregates,including a mixture of steel slag and stone aggregates,are reinforced with a novel kind of geo-grid made of waste tire strips known as *** laboratory research tried to explain the shear strength behavior of the introduced mixing slag-stone ballast reinforced with tire *** achieve this goal,a series of large-scale direct shear tests were performed on the ballast which is reinforced by tire geo-scrap and included various combinations of slag and stone *** concluded results indicate that the optimal mixing ratio is attained by a combination of 75%slag and 25%stone aggregates which is reinforced by tire geo-scrap at a placing level of 120 *** this case,the shear strength,internal friction angle,vertical displacement,and dilatancy angle of stone–slag ballast reinforced with geo-scraps exhibited average changes of+28%,+9%,-28%,and-15%,respectively.

关键词： Ballast deterioration Ballast stabilization Steel slag aggregates Large-scale direct shear test Waste tire geoscrap

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Effect of Modulen vs budesonide on clinical response and mucosal healing in Crohn’s patients

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World Journal of Gastroenterology 2025年第5期31卷 84-93页

作者： Baruch Ovadia Eva Niv sara Stern Katie Elisabeth Mahajna Oren Gal Yael Kopelman Department of Gastroenterology Hillel Yaffe Medical CenterHadera 38100HaifaIsrael Faculty of Medicine Technion-Israel Institute of TechnologyHadera 38100HaifaIsrael Department of Gastroenterology Meuhedet Health ServicesHadera 38100HaifaIsrael

BACKGROUND Mucosal healing has become an important goal of Crohn’s disease(CD)***,enriched with transforming growth factor-beta 2,and budeso-nide are commonly accepted treatments for mild-moderate ***,their effects on the small bowel(SB)mucosa remain *** To prospectively assess clinical and mucosal responses to Modulen vs budesonide in adults with CD,using SB capsule *** Thirty patients were divided into two groups:Modulen+home-based diet(21 patients)and budesonide(9 patients)for an eight-week intervention followed by four weeks of ***,laboratory,and endoscopic responses were *** mucosal changes were assessed through SB capsule *** Results indicated significant clinical improvement in the Modulen group with reduced CD activity index(P=0.041)and improved inflammatory bowel disease questionnaire score(P=0.016).Moreover,Modulen was associated with a signifi-cant SB mucosal improvement,evidenced by a decrease in Lewis score(P=0.027).No significant changes were observed in calprotectin or other laboratory ***,budesonide exhibited more modest clinical effects,but it improved calprotectin,hemoglobin,and C-reactive protein levels(P=0.051,P=0.014,and P=0.038,respectively).The capsule endoscopy did not reveal a significant mucosal response in the budesonide *** Both interventions have a role in CD ***,their effects differ and may complement each other:Modulen yields clinical and mucosal improvements,while budesonide primarily leads mainly to laboratory improvements.

关键词： Crohn’s disease Modulen oral polymeric diet Transforming growth factor-beta 2 Budesonide Mucosal healing Clinical response Capsule endoscopy Small bowel capsule

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Advances and challenges in diagnosing and managing adult autoimmune enteropathy

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World Journal of Gastroenterology 2025年第2期31卷 128-131页

作者： Grigorios Christodoulidis sara E Agko Marina N Kouliou Konstantinos E Koumarelas Dimitris Zacharoulis Department of General Surgery University Hospital of LarissaLarissa 41110Greece Department of Intensive Care Unit Asklepios Paulinen Clinic WiesbadenWiesbaden 65197Germany Department of Emergency Medicine General Hospital of LarissaLarissa 41221Greece Department of Surgery University Hospital of LarissaLarissa 41334Greece

Autoimmune enteropathy(AIE)is a rare immune mediated disorder primarily affecting children,characterized by chronic diarrhea,malabsorption,vomiting,weight loss and villous *** has also been observed in adults presenting diagnostic and treatment challenges due to its overlap with other gastrointestinal disorders such as celiac *** diagnostic criteria for AIE include small bowel villous atrophy,lack of response to dietary restrictions,presence of anti-enterocyte antibodies,and predisposition to autoimmunity without severe *** criteria emphasize characteristic histological findings and exclusion of other causes of villous *** is associated with various autoimmune disorders and can present with overlapping features with Celiac disease,including villous atrophy but without significant intraepithelial *** primarily involves immunosuppression using corticosteroids,calcineurin inhibitors,and anti-tumor necrosis factor therapy,alongside nutri-tional *** the challenges,understanding AIE’s diverse manifest-ations and improving diagnostic criteria are essential for effective management and improved patient *** research is needed to elucidate the pathogenesis,disease progression and long-term outcomes of AIE.

关键词： Autoimmune enteropathy Diagnosis Prognosis Adult autoimmune enter-opathy and challenges Autoimmune enteropathy and treatment Autoimmune enteropathy and diagnostic criteria Pathophysiology of autoimmune enteropathy

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Productive and metabolomic consequences of arginine supplementation in sows during different gestation periods in two different seasons

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Journal of Animal Science and Biotechnology 2025年第1期16卷 218-237页

作者： sara Virdis Diana Luise Federico Correa Luca Laghi Norma Arrigoni Roxana Elena Amarie Andrea Serra Giacomo Biagi Clara Negrini Francesco Palumbo Paolo Trevisi Department of Agricultural and Food Sciences University of BolognaViale G.Fanin 4440127 BolognaItaly Istituto Zooprofilattico Sperimentale Della Lombardia E Dell’Emilia Romagna(IZSLER)“Bruno Ubertini” Via Bianchi925124 BresciaItaly Department of Agriculture Food and EnvironmentUniversity of PisaVia del Borghetto 8056124 PisaItaly Department of Veterinary Medicine University of BolognaVia Tolara Di Sopra 5040064 Ozzano Dell’Emilia(BO)Italy.

Background The prolificacy of sows(litter size at birth)has markedly increased,leading to higher post-natal *** stress can exacerbate this *** plays an important role in several physiological pathways;its effect on gestating sows can depend on the period of *** study evaluated the effects of arginine supplementation on the productive performance and physiological status of sows during different gestation periods and seasons,using a multi-omics *** A total of 320 sows were divided into 4 groups over 2 seasons(warm/cold);a control group(CO)received a standard diet(including 16.5 g/d of arginine)and 3 other groups received the standard diet supplemented with 21.8 g/d of arginine(38.3 g/d of arginine)either during the first 35 d(Early35),the last 45 d(Late45)or through-out the entire gestation period(COM).The colostrum was analyzed for nutritional composition,immunoglobulins and metabolomic *** and feces were analyzed on d 35 and 106 for the metabolomic and microbial *** body weight and mortality were recorded at birth,d 6,d 26,and on d 14 *** Interactions between arginine and season were never *** Early35 group had a lower percent-age of stillborn(P<0.001),mummified(P=0.002)and low birthweight(LBW)piglets(P=0.02)than the CO *** Late45 group had a lower percentage of stillborn piglets(P=0.029)and a higher percentage of high birthweight piglets(HBW;P<0.001)than the CO *** COM group had a higher percentage of LBW(P=0.004)and crushed piglets(P<0.001)than the CO *** supplementation modifies the metabolome characterization of colos-trum,urine,and *** and nitric oxide pathways,as well as metabolites related to microbial activity,were influenced in all matrices.A slight trend in the beta diversity index was observed in the microbiome profile on d 35(P=0.064).Conclusions Arginine supplementation during early gestation reduced the percentage o

关键词： Colostrum Feces Microbiota Piglets’birth weight Stillborn Urine

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Patients admitted in the intensive care unit after solid organ or bone marrow transplantation:Retrospective cohort study

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World Journal of Transplantation 2025年第1期15卷 95-104页

作者： Ana Vujaklija Brajkovic Iva Kosuta Lucija Batur sara Sundalic Marijana Medic Andro Vujevic Luka Bielen Jaksa Babel Department of Internal Medicine University Hospital Centre ZagrebZagreb 10000Croatia School of Medicine University of ZagrebZagreb 10000Croatia

BACKGROUND Solid organ transplantation(SOT)and hematopoietic stem cell transplantation(HSCT)revolutionized the survival and quality of life of patients with malignant diseases,various immunologic,and metabolic disorders or those associated with a significant impairment in a patient's quality of *** To investigate admission causes and treatment outcomes of patients after SOT or HSCT treated in a medical intensive care unit(ICU).METHODS We conducted a single-center,retrospective epidemiological study in the medical ICU at the University Hospital Centre Zagreb,Croatia covering the period from January 1,2018 to December 31,*** The study included 91 patients with either SOT[28 patients(30.8%)]or HSCT[63 patients(69.2%)].The median age was 56(43.2-64.7)years,and 60.4%of the patients were *** with SOT had more comorbidities than patients after HSCT[χ^(2)(5,n=141)=18.513,P<0.001].Sepsis and septic shock were the most frequent reasons for admission,followed by acute respiratory insufficiency in patients following *** rate significantly differed between SOT and HSCT[χ^(2)(1,n=91)=21.767,P<0.001].ICU survival was 57%in the SOT and 12.7%in the HSCT *** need for mechanical ventilation[χ^(2)(1,n=91)=17.081,P<0.001]and vasopressor therapy[χ^(2)(1,n=91)=36.803,P<0.001]was associated with *** necessity for acute renal replacement therapy did not influence patients'survival[χ^(2)(1,n=91)=0.376,P=0.54].In the subgroup of patients with infection,90%had septic shock,and the majority had positive microbiological samples,mostly Gram-negative *** ICU survival of patients with sepsis/septic shock cumulatively was 15%.The survival of SOT patients with sepsis/shock was 45%.CONCLUSION Patients with SOT or HSCT are frequently admitted to the ICU due to sepsis and septic *** advancements in critical care,the mortality rate of patients with refractory septic shock and multiorgan failure in this patient population is extremely hig

关键词： Liver transplantation Kidney transplantation Hematopoietic stem cell transplantation Critical care Sepsis Septic shock Mortality

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An illustrated guide to:Distributed and integrated fibreoptic sensing in seismology

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Earthquake Science 2025年第1期38卷 67-77页

作者： Andreas Fichtner Fabian Walter Patrick Paitz sara Klaasen Daniel C.Bowden Sebastian Noe Nils Müller Dominik Husmann Jacques Morel Department of Earth Sciences ETH ZürichZürich 8049Switzerland Swiss Federal Institute for Forest Snow and Landscape ResearchBirmensdorf 8903Switzerland Swiss Federal Institute of Metrology METAS Bern 3003Switzerland

The properties of laser signals are affected by deformation of the optical fibre through which they are *** this deformation dependence is undesirable in telecommunication,it can be exploited for the construction of novel seismic sensors that fill a niche in data acquisition where traditional seismometer arrays would be difficult to *** includes densely populated urban centers,the oceans,volcanoes and the Earth’s polar *** notes complement a presentation on recent methodological developments and applications in fibre-optic *** first part is focused on the use of distributed fibreoptic sensing in cryosphere research,and specifically the investigation of the internal structure and seismicity of glaciers and ice *** second part is dedicated to recent advances in integrated fibre-optic sensing,with emphasis on novel measurement principles and sensitivity.

关键词： seismology fibre-optics cryosphere earthquakes

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Genetic signatures of ERCC1 and ERCC2 expression,along with SNPs variants,unveil favorable prognosis in SCLC patients undergoing platinum-based chemotherapy

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Oncology Research 2025年第1期33卷 45-55页

作者： ENRICO CALIMAN sara FANCELLI FEDERICO SCOLARI ADRIANO PASQUI CLARA MANNESCHI DANIELE LAVACCHI FRANCESCA MAZZONI FRANCESCA GENSINI VALERIA PASINI CAMILLA EVA COMIN LUCA VOLTOLINI SERENA PILLOZZI LORENZO ANTONUZZO Clinical Oncology Unit Careggi University HospitalFlorence50134Italy Department of Experimental and Clinical Medicine University of FlorenceFlorence50134Italy Department of Health Sciences University of FlorenceFlorence50134Italy Medical Oncology Unit Careggi University HospitalFlorence50134Italy Department of Experimental and Clinical Biomedical Sciences“Mario Serio” University of FlorenceFlorence50134Italy Section of Anatomic Pathology Department of Health SciencesUniversity of FlorenceFlorence50139Italy Section of Surgery Histopathology and Molecular PathologyUniversity of FlorenceFlorence50139Italy Thoracic Surgery Unit Careggi University HospitalFlorence50134Italy

Background:Platinum chemotherapy(CT)remains the backbone of systemic therapy for patients with smallcell lung cancer(SCLC).The nucleotide excision repair(NER)pathway plays a central role in the repair of the DNA damage exerted by platinum *** in this repair mechanism may affect patients’*** and Methods:We conducted a retrospective analysis of data from 38 patients with extensive disease(ED)-SCLC who underwent platinum-CT at the Clinical Oncology Unit,Careggi University Hospital,Florence(Italy),from 2015 to *** expression analysis and single nucleotide polymorphism(SNP)characterization of three NER pathway genes—namely ERCC1,ERCC2,and ERCC5—were performed on patient tumor ***:Overall,elevated expression of ERCC genes was observed in SCLC patients compared to healthy *** with low ERCC1 and ERCC5 expression levels exhibited a better median progression-free survival(mPFS=7.1 vs.4.9 months,p=0.39 for ERCC1 and mPFS=6.9 vs.4.8 months,p=0.093 for ERCC5)and overall survival(mOS=8.7 vs.6.0 months,p=0.4 for ERCC1 and mOS=7.2 vs.6.2 months,p=0.13 for ERCC5).Genotyping analysis of five SNPs of ERCC genes showed a longer survival in patients harboring the wild-type genotype or the heterozygous variant of the ERCC1 rs11615 SNP(p=0.24 for PFS and p=0.14 for OS)and of the rs13181 and rs1799793 ERCC2 SNPs(p=0.43 and p=0.26 for PFS and p=0.21 and p=0.16 for OS,respectively)compared to patients with homozygous mutant ***:The comprehensive analysis of ERCC gene expression and SNP variants appears to identify patients who derive greater survival benefits from platinum-CT.

关键词： Small cell lung cancer(SCLC) Nucleotide excision repair(NER)pathway ERCC genes Single nucleotide polymorphisms(SNPs) Platinumchemotherapy(CT)

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