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Vulvar Swelling in a 12-Year-Old Girl: An Early Manifestation of Crohn’s Disease

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Case Reports in Clinical Medicine 2024年第7期13卷 219-226页

作者： Stefania rendina Dolores Ferrara Rosanna Mamone Sara isoldi Massimo Zeccolini Francesco Esposito Department of Radiology Universit degli studi di Napoli Luigi Vanvitelli Naples Italy Department of Radiology A.O.R.N. Santobono-Pausilipon Children Hospital Naples Italy Pediatric Gastroenterology and Hepatology Unit Santobono-Pausilipon Childrens Hospital Naples Italy

Vulvar Crohn’s disease (VCD) is a rare complication of Crohn’s disease, especially in pediatric population. An early diagnosis can result difficult if the complication does not present in conjunction with the classic gastrointestinal symptoms that characterize this disease. in this study we present the case of a 12-year-old girl whose initial symptom of Crohn’s disease was a symptomatic vulvar swelling promoted by a rectovaginal fistula. We also provide an overview of Crohn’s disease and the vulvar changes found in the course of this disease.

关键词： Recto-Vaginal Fistula Vulvar Swelling Metastatic Crohn’s Disease

Rifabutin as salvage therapy for Helicobacter pylori eradication:Cornerstones and novelties

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World Journal of Gastroenterology 2022年第45期28卷 6356-6362页

作者： Antonia Valeria Borraccino Francesca Celiberto Maria Pricci Bruna Girardi Andrea iannone Maria rendina Enzo ierardi Alfredo Di Leo Giuseppe Losurdo Section of Gastroenterology Department of Emergency and Organ TransplantationUniversity of BariBari 70124Italy THD SpA Correggio 42015Italy

When several Helicobacter pylori eradication treatments fail,guidelines recommend a cultured guided approach;however,culture is not widely ***,a rifabutin based regimen could be the best *** indeed shows a low rate of antibiotic *** is generally used in combination with amoxicillin in a triple therapy,with eradication rates about 80%in third-line *** ideal duration of this therapy should range between 10 and 12 *** with antibiotics other than amoxicillin have demonstrated even better results,such as vonoprazan,which is a type of novel acid suppressor ***,a new formulation of triple therapy in a single capsule is under investigation,which is a field that deserves further *** notes of caution about rifabutin should be *** drug is used to treat tuberculosis or atypical mycobacteria;therefore,before starting a rifabutin-based eradication regimen,Mycobacterium tuberculosis infection should be thoroughly tested,since its use could promote the development of antibiotic resistance,thus affecting its effectiveness against Koch’s ***,some serious side effects must be evaluated before starting any rifabutin-based *** effects include fever,nausea,vomiting and bone marrow *** this reason,full blood count surveillance is required.

关键词： Helicobacter pylori Eradication Rifabutin Antibiotic resistance Rescue therapy Treatment

Lipolysis supports bone formation by providing osteoblasts with endogenous fatty acid substrates to maintain bioenergetic status

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Bone Research 2023年第4期11卷 876-894页

作者： Ananya Nandy Ron C.M.Helderman Santosh Thapa Shobana Jayapalan Alison Richards Nikita Narayani Michael P.Czech Clifford J.Rosen Elizabeth rendina-Ruedy Department of Medicine Division of Clinical PharmacologyVanderbilt University Medical CenterNashvilleTN 37232USA Program in Molecular Medicine University of Massachusetts Chan Medical SchoolWorcesterMA 01605USA Maine Medical Center Research institute ScarboroughMEUSA Molecular Physiology and Biophysics Vanderbilt UniversityNashvilleTN 37232USA

Bone formation is a highly energy-demanding process that can be impacted by metabolic *** has been considered the principal substrate for osteoblasts,although fatty acids are also important for osteoblast ***,we report that osteoblasts can derive energy from endogenous fatty acids stored in lipid droplets via lipolysis and that this process is critical for bone *** such,we demonstrate that osteoblasts accumulate lipid droplets that are highly dynamic and provide the molecular mechanism by which they serve as a fuel source for energy generation during osteoblast *** cytoplasmic lipolysis leads to both an increase in lipid droplet size in osteoblasts and an impairment in osteoblast *** fatty acids released by lipolysis from these lipid droplets become critical for cellular energy production as cellular energetics shifts towards oxidative phosphorylation during nutrient-depleted *** vivo,conditional deletion of the ATGL-encoding gene Pnpla2 in osteoblast progenitor cells reduces cortical and trabecular bone parameters and alters skeletal lipid ***,our data demonstrate that osteoblasts store fatty acids in the form of lipid droplets,which are released via lipolysis to support cellular bioenergetic status when nutrients are *** in this process result in impairment of bone formation,specifically reducing ATP production and overall osteoblast function.

关键词： endogenous maintain osteoblast

Guided resonance in negative index photonic crystals: a new approach

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Light(Science & Applications) 2014年第1期3卷 365-369页

作者： Silvia Romano Stefano Cabrini ivo rendina Vito Mocella CNR-iMM-Unita di Napoli 80131 NapoliItaly Molecular Foundry Lawrence Berkeley National LaboratoryBerkeleyCAUSA

The behavior of a negative refraction photonic crystal slab irradiated with out-of-plane incident beam is an unexplored *** such an experimental configuration,guided mode resonance appears in the reflection *** show that,in this case,the light coupled inside the photonic crystal is backpropagating.A relationship with the negative index properties is established using a new approach in which the guided resonance is recovered by modeling the photonic crystal layer with a simple Lorentz resonator using the Fresnel reflection formula.

关键词： diffraction gratings guided mode resonance negative index photonic crystals

Label-free sensing of ultralow-weight molecules with all-dielectric metasurfaces supporting bound states in the continuum

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Photonics Research 2018年第7期6卷 726-733页

作者： SiLViA ROMANO GiANLUiGi ZiTO STEFANiA TORiNO GiUSEPPE CALAFiORE ERiKA PENZO GiUSEPPE COPPOLA STEFANO CABRiNi iVO rendina ViTO MOCELLA institute for Microelectronics and Microsystems Unit of Naples National Council of Research institute of Protein Biochemistry National Council of Research Lawrence Berkeley National Laboratory Molecular Foundry Division

The realization of an efficient optical sensor based on a photonic crystal metasurface supporting bound states in the continuum is reported. Liquids with different refractive indices, ranging from 1.4000 to 1.4480, are infiltrated in a microfluidic chamber bonded to the sensing dielectric metasurface. A bulk liquid sensitivity of 178 nm/RiU is achieved, while a Q-factor of about 2000 gives a sensor figure of merit up to 445 in air at both visible and infrared excitations. Furthermore, the detection of ultralow-molecular-weight(186 Da) molecules is demonstrated with a record resonance shift of 6 nm per less than a 1 nm thick single molecular layer. The system exploits a normal-to-the-surface optical launching scheme, with excellent interrogation stability and demonstrates alignment-free performances, overcoming the limits of standard photonic crystals and plasmonic resonant configurations.

关键词：高效光学传感器折射率理论研究通讯技术

Prospects of Renminbi internationalization:Benefits,Costs and Challenges

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科技致富向导 2015年第11期 182-183页

作者： Sebastian rendina Shanghai University-School of Economics

The current global demand for RMB might eventually lead to an internationalization of the currency as China continues to position itself as a leader in the international *** paper analyzes the internationalization process;observing current and future measures and possible benefits and costs from an eventual emergence of the RMB as an international currency;while also considering the challenges for the Chinese government, in particular those regarding exchange-rate intervention and access to its capital markets.

关键词： Monetary Policy international Finance Renminbi

Serologic diagnosis of celiac disease: May it be suitable for adults?

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World Journal of Gastroenterology 2021年第42期27卷 7233-7239页

作者： Giuseppe Losurdo Milena Di Leo Edoardo Santamato Monica Arena Maria rendina Carmelo Luigiano Enzo ierardi Alfredo Di Leo Section of Gastroenterology Department of Emergency and Organ TransplantationUniversity of BariBari 70124Italy Unit of Digestive Endoscopy San Paolo HospitalMilan 20090Italy

The diagnosis of coeliac disease(CD)in adult patients requires the simultaneous assessment of clinical presentation,serology,and typical histological picture of villous ***,several years ago,the European Society of Pediatric Gastroenterology,Hepatology,and Nutrition guidelines approved new criteria for the diagnosis in children:Biopsy could be avoided when antitransglutaminase antibody(TGA)values exceed the cut-off of×10 upper limit of normal(ULN)and anti-endomysium antibodies are positive,independently from ***“no biopsy”approach is a decisive need for pediatric population,allowing to avoid stressful endoscopic procedures in children,if *** approach relies on the correlation existing in children between TGA levels and assessment of mucosal atrophy according to Marsh’s *** lines of evidence have shown that patients with villous atrophy have markedly elevated TGA ***,we aim to perform a narrative review on the topic in *** that some studies confirmed that the×10 ULN threshold value has a very good diagnostic performance,several lines of evidence in adults suggest that TGA cut off should be different from that of pediatric population for reaching a good correlation with histological *** conclusion,the heterogeneity of study reports as well as some conditions,which may hamper the serological diagnosis of CD(such as seronegative CD and non-celiac villous atrophy)and are much more common in adults than in children,could represent a limitation for the“no biopsy”approach to CD diagnosis in patients outside the pediatric age.

关键词： Celiac disease Villous atrophy Serology Biopsy Anti-transglutaminase antibody

Metabolic programming determines the lineage-differentiation fate of murine bone marrow stromal progenitor cells

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Bone Research 2019年第4期7卷 410-423页

作者： Michaela Tencerova Elizabeth rendina-Ruedy Ditte Neess Nils Faergeman Florence Figeac Dalia Ali Morten Danielsen Anders Haakonsson Clifford J.Rosen Moustapha Kassem Department of Molecular Endocrinology University of Southern Denmark and Odense University Hospital5000 OdenseDenmark Center for Molecular Medicine Maine Medical Center Research InstituteScarboroughME 04074USA Villum Center for Analytical Biosciences Department of Biochemistry and Molecular BiologyUniversity of Southern Denmark5230 OdenseDenmark MSOmics 2950 CopenhagenDenmark Department of Cellular and Molecular Medicine Novo Nordisk Foundation Center for Stem Cell Biology(DanStem)University of Copenhagen2200 CopenhagenDenmark

Enhanced bone marrow adipogenesis and impaired osteoblastogenesis have been observed in obesity,suggesting that the metabolic microenvironment regulates bone marrow adipocyte and osteoblast progenitor differentiation *** determine the molecular mechanisms,we studied two immortalized murine cell lines of adipocyte or osteoblast progenitors(BMSCs^adipo and BMSC^sosteo,respectively)under basal and adipogenic culture *** baseline,BMSCs^adipo,and BMSCs^osteo exhibit a distinct metabolic program evidenced by the presence of specific global gene expression,cellular bioenergetics,and metabolomic signatures that are dependent on insulin signaling and glycolysis in BMSCs^osteo versus oxidative phosphorylation in BMSCs^*** test the flexibility of the metabolic program,we treated BMSCsadipo with parathyroid hormone,S961(an inhibitor of insulin signaling)and oligomycin(an inhibitor of oxidative phosphorylation).The treatment induced significant changes in cellular bioenergetics that were associated with decreased adipocytic ***,12 weeks of a high-fat diet in mice led to the expansion of adipocyte progenitors,enhanced adipocyte differentiation and insulin signaling in cultured *** data demonstrate that BMSC progenitors possess a distinct metabolic program and are poised to respond to exogenous metabolic cues that regulate their differentiation fate.

关键词： progenitor impaired programming

Novel frontiers of agents for bowel cleansing for colonoscopy

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World Journal of Gastroenterology 2021年第45期27卷 7748-7770页

作者： Milena Di Leo Andrea iannone Monica Arena Giuseppe Losurdo Maria Angela Palamara Giuseppe iabichino Pierluigi Consolo Maria rendina Carmelo Luigiano Alfredo Di Leo Unit of Digestive Endoscopy San Paolo HospitalMilan 20090Italy Section of Gastroenterology Department of Emergency and Organ TransplantationUniversity of BariBari 70124Italy Unit of Digestive Endoscopy University of MessinaHospital"G.Martino"Messina 98121Italy

The incidence of colorectal cancer(CRC)is characterized by rapid declines in the wake of widespread *** is the gold standard for CRC screening,but its accuracy is related to high quality of bowel preparation(BP).in this review,we aimed to summarized the current strategy to increase bowel cleansing before *** bowel cleansing agents were developed with the same efficacy of previous agent but requiring less amount of liquid to improve patients’*** role of the diet before colonoscopy was also changed,as well the contribution of educational intervention and the use of adjunctive drugs to improve patients’tolerance and/or quality of *** review also described BP in special situations,as lower gastrointestinal bleeding,elderly people,patients with chronic kidney disease,patients with inflammatory bowel disease,patients with congestive heart failure,inpatient,patient with previous bowel resection,pregnant/lactating *** review underlined the quality of BP should be described using a validate scale in colonoscopy report and it explored the available ***,the review explored the possible contribution of bowel cleansing in post-colonoscopy syndrome that can be related by a transient alteration of gut ***,the study underlined several points needed to further investigations.

关键词： Colonoscopy Bowel preparation Cleansing agents Polyethylene glycol Adequate cleansing Constipation