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直肠脱垂及其伴发生殖器官脱垂的分类和新手术治疗

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中国实用外科杂志 2013年第11期33卷 914-919页

作者： Antonio longo 张伦文(译) 傅传刚(审校) Department of Coloproctology and Pelvic Diseases Via Maqueda. 8 90134 Palermo Italy 不详

便秘是一种常见的疾病,但有关其定义和发病机制的认识尚不统一。由于肠道传输时间并不是一个常数,不同时间测的数值有很大差异,不应作为便秘诊断的参数,其时间延长经常因出口梗阻型便秘所致,而非便秘的初始原因。由于便秘病人需要通过... 详细信息

便秘是一种常见的疾病,但有关其定义和发病机制的认识尚不统一。由于肠道传输时间并不是一个常数,不同时间测的数值有很大差异,不应作为便秘诊断的参数,其时间延长经常因出口梗阻型便秘所致,而非便秘的初始原因。由于便秘病人需要通过增加腹内压和盆腔内压力,产生排便的刺激,导致道格拉斯窝加深、肠疝、直肠内套叠、膀胱膨出、子宫及阴道脱垂及会阴过度下降等功能性改变,继而出现解剖学改变。直肠内脱垂分为两种类型:直肠长度和结构正常的直肠脱垂;以及伴有直肠肌层延长等结构改变的直肠脱垂,通过经肛吻合器直肠切除术(STARR)切除直肠脱垂及直肠膨出,可以明显改善这些功能性和解剖性变化。

关键词：直肠脱垂便秘

Evaluating the morphology of the degradation layer of pure magnesium via 3D imaging at resolutions below 40 nm

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Bioactive Materials 2021年第12期6卷 4368-4376页

作者： Berit Zeller-Plumhoff Daniel laipple Hanna Slominska Kamila Iskhakova Elena longo Alexander Hermann Silja Flenner Imke Greving Malte Storm Regine Willumeit-Romer Helmholtz-Zentrum hereon GmbH Institute of Metallic BiomaterialsMax-Planck-Straße 121502GeesthachtGermany Helmholtz-Zentrum hereon GmbH Research ReactorMax-Planck-Straße 121502GeesthachtGermany Helmholtz-Zentrum hereon GmbH Institute of Materials PhysicsMax-Planck-Straße 121502GeesthachtGermany Helmholtz-Zentrum hereon GmbH Institute of Materials Systems ModellingMax-Planck-Straße 121502GeesthachtGermany Diamond Light Source Ltd. Diamond HouseHarwell Science and Innovation CampusDidcotOX110DEUnited Kingdom

Magnesium is attractive for the application as a temporary bone implant due to its inherent biodegradability,non-toxicity and suitable mechanical *** degradation process of magnesium in physiological environments is complex and is thought to be a diffusion-limited transport *** use a multi-scale imaging approach using micro computed tomography and transmission X-ray microscopy(TXM)at resolutions below 40 ***,we are able to evaluate the nanoporosity of the degradation layer and infer its impact on the degradation process of pure magnesium in two physiological *** samples were degraded in simulated body fluid(SBF)or Dulbecco’s modified Eagle’s medium(DMEM)with 10%fetal bovine serum(FBS)for one to four *** reveals the three-dimensional interconnected pore network within the degradation layer for both *** pore network morphology and degradation layer composition are similar for all *** contrast,the degradation layer thickness in samples degraded in SBF was significantly higher and more inhomogeneous than in DMEM+10%*** features could be observed within the degradation layer of samples degraded in SBF,suggesting the formation of microgalvanic cells,which are not present in samples degraded in DMEM+10%*** results suggest that the nanoporosity of the degradation layer and the resulting ion diffusion processes therein have a limited influence on the overall degradation *** indicates that the influence of organic components on the dampening of the degradation rate by the suppression of microgalvanic degradation is much greater in the present study.

关键词： Magnesium degradation Porosity Transmission X-ray microscopy 3D imaging

Impact of hepatitis C virus infection on lifestyle

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World Journal of Gastroenterology 2007年第19期13卷 2722-2726页

作者： Paola Scognamiglio Vincenzo Galati Assunta Navarra Maria Antonella longo Maria Stella Aloisi Maria Giulia Antonini Massimo Puoti Piero Luigi Almasio Giuseppe Ippolito Enrico Girardi Istituto Nazionale per le Malattie Infettive "L. Spallanzani" IRCCS Roma Italy Cattedra di Malattie Infettive Università di Brescia Italy Cattedra di Gastroenterologia Università di Palermo Italy

AIM: To evaluate the impact of the diagnosis of hepatitis C infection on lifestyle habits such as smoking, drinking, sports activity and ***: A self-administered, anonymous question-naire was offered to out-patients with HCV infection consecutively attending three clinical centres in ***: Of the 275 respondents, 62.2% (171) were male. Mean age was 51 (range 20-80) years. Overall, after the diagnosis of hepatitis C, 74.5% of drinkers had modified (giving up or reducing) alcohol consumption, 21.3% of smokers had modifi ed their habits and 32.3% of subjects who reported sports activity had either stopped or reduced frequency of activity or chose a less fatiguing sport. Sixty-four percent of the respondents reported having modified their diet, most of them on physician's advice. CONCLUSION: After the diagnosis of hepatitis C many patients correctly modif ied their alcohol consumption and a minority their smoking habits. The reason for reported changes in diet and physical activity needs further investigations.

关键词： Hepatitis C virus Lifestyle habits Smoking Alcohol consumption Diet Physical activity

Associations of High Density Lipoprotein Cholesterol and Framingham Cardiovascular Risk with Diabetic Retinopathy in African Type 2 Diabetics

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World Journal of Cardiovascular Diseases 2014年第4期4卷 179-188页

作者： Benjamin longo-Mbenza Moise Mvitu Muaka Thierry Gombet Igor longo Phemba Stephen Cook Emmanuel Mve Mengome Department of Ophthalmology University of Kinshasa Kinshasa Congo Emergency Service University Hospital Centre Brazzaville Congo Faculty of Health Sciences Walter Sisulu University Mthatha South Africa Faculty of Medicine University of Health Sciences Libreville Gabon School of International Studies Wenzhou Medical College Wenzhou China The Eye Centre East London South Africa

Objectives: To assess the associations of high density lipoprotein cholesterol (HDL-C) and Framingham cardiovascular (CVD) with diabetic retinopathy (DR). Methods: A cross-sectional study of random sample of 200 T2DM Central Africans. Sociobiographical, laboratory and eye examination main outcome measures were investigated using Tertiles of HDL-C (stratification = lowest 10% were the significant independent determinants for DR. In the highest HDL-C group, smoking status and 10-year Framingham risk ≥ 10% were the significantly independent determinants for DR. In 10-year Framingham risk ≥ 10% group, smoking status, insulin resistance and increasing levels of HDL-C were the significantly independent determinants for DR. Conclusion: DR and VD remain a public health problem in T2DM Central Africans. Some Central Africans with DR and VD appear to have higher HDL-C than T2DM Central Africans without DR and VD. HDL-C in T2DM patients with DR, may be tightly controlled by genetic factors (black Bantu ethnicity) than the other lipoproteins as reported among Indians, African-Americans, and Japanese individuals. The most preventable environmental risk factors for DR were smoking status, global cardiovascular disease risk, insulin resistance and oxidative stress.

关键词： Diabetic Retinopathy Visual Disability Higher High Density Lipoprotein Smoking Insulin Resistance Oxidative Stress Africans

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炭纳米卷的极性微-拉曼光谱研究（英文）

新型炭材料 2016年第6期31卷 621-627页

作者： G.Carotenuto A.longo C.Camerlingo S.De Nicola G.P.Pepe CNR-IPCB Inst. for PolymersComposites and Biomaterials.National Research Council CNR-SPIN Inst. for Superconductorsoxides and other innovative materials and devicesNational Research CouncilC.Univ.M.S.Angelo Dipartimento Scienze Fisiche University of Naples Federico Ⅱ

采用剪切-摩擦机理,通过卷曲将双轴取向聚丙烯纤维表面转变成石墨纳米片,从而制备出炭纳米卷。通过光学和扫描电镜、透射电镜和红外光谱仪等手段对炭纳米卷的形貌进行分析。微-拉曼测试表征了卷曲结构的形貌变化。从振动的G模式分裂可知... 详细信息

采用剪切-摩擦机理,通过卷曲将双轴取向聚丙烯纤维表面转变成石墨纳米片,从而制备出炭纳米卷。通过光学和扫描电镜、透射电镜和红外光谱仪等手段对炭纳米卷的形貌进行分析。微-拉曼测试表征了卷曲结构的形貌变化。从振动的G模式分裂可知,石墨片取向度与卷曲轴有关。

关键词：炭纳米卷剪切应力双轴取向聚丙烯石墨纳米片微-拉曼光谱

Hepatocellular carcinoma staging systems: Hong Kong liver cancer vs Barcelona clinic liver cancer in a Western population

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World Journal of Hepatology 2019年第9期11卷 678-688页

作者： laura Bainy Rodrigues de Freitas la.isse longo Deivid Santos Ivana Grivicich Mário Reis Alvares-da-Silva Graduate Program in Gastroenterology and Hepatology Universidade Federal do Rio Grande do SulPorto AlegreRS 90035-003Brazil Experimental Hepatology and Gastroenterology laboratory Center for Experimental ResearchHospital de Clínicas de Porto AlegrePorto AlegreRS 90035-003Brazil School of Medicine Universidade Federal do Rio Grande do SulPorto AlegreRS 90035-003Brazil Graduate Program in Health-Applied Cellular and Molecular Biology ULBRA.CanoasRS 92425-900Brazil Department of Gastroenterology Hospital de Clínicas de Porto AlegrePorto AlegreRS 90035-003Brazil

BACKGROUND Despite being the world’s most widely used system for staging and therapeutic guidance in hepatocellular carcinoma(HCC)treatment,the Barcelona clinic liver cancer(BCLC)system has limitations,especially regarding intermediate-grade(BCLC-B)*** recently proposed Hong Kong liver cancer(HKLC)staging system appears useful but requires validation in Western *** To evaluate the agreement between BCLC and HKLC staging on the management of HCC in a Western population,estimating the overall patient *** This was a retrospective study of HCC patients treated at a university hospital in southern Brazil between 2011 and ***,clinical,and laboratory data were *** staging was carried out according to the HKLC and BCLC systems to assess treatment *** survival was estimated based on the treatment proposed in each *** A total of 519 HCC patients were *** these,178(34.3%)were HKLC-I;95(18.3%)HKLC-IIA;47(9.1%)HKLC-IIB;29(5.6%)HKLC-IIIA;30(5.8%)HKLCIIIB;75(14.4%)HKLC-IV;and 65(12.5%)*** to the BCLC,25(4.9%)were BCLC-0;246(47.4%)BCLC-A;107(20.6%)BCLC-B;76(14.6%)BCLCC;and 65(12.5%)*** general agreement between the two systems was 80.0%-BCLC-0 and HKLC-I(100%);BCLC-A and HKLC-I/HKLC-II(96.7%);BCLC-B and HKLC-III(46.7%);BCLC-C and HKLC-IV(98.7%);BCLC-D and HKLC-V(41.5%).When sub-classifying BCLC-A,HKLC-IIB,HKLC-IIIA and HKLC-IIIB stages according to the up-to-7 in/out criterion,13.4,66.0,100 and 36.7%,respectively,of the cases were classified as up-to-7 *** In a Western population,the general agreement between the two systems was 80.0%,although in BCLC-B cases the agreement was low,suggesting that some individuals could be candidates for the curative treatment recommended by the *** authors suggest that the BCLC system should be routinely employed,although for BCLC-B cases it should be associated with the HKLC system.

关键词： Barcelona clinic liver cancer staging system Hepatocellular carcinoma Hong Kong liver cancer staging system

A new therapeutic approach to erectile dysfunction： urotensin-II receptor high affinity agonist ligands

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Asian Journal of Andrology 2015年第1期17卷 81-85,I0008,I0009页

作者： Roberta d'Emmanuele di Villa Bianca Emma Mitidieri Erminia Donnarumma Ferdinando Fusco Nicola longo Giuseppe De Rosa Ettore Novellino Paolo Grieco Vincenzo Mirone Giuseppe Cirino Raffaella Sorrentino Department of Pharmacy University of Naples Federico II Via D. Montesano 49 Naples Italy Interdepartmental Centre for Sexual Medicine University of Naples Federico II Via S. Pansini 5 Naples Italy Department of Neurosciences Human Reproduction and Odontostomatology University of Naples Federico II Via S. Pansini 5 Naples Italy.

Urotensin-II （U-II） is a cyclic peptide that acts through a G protein-coupled receptor （urotensin-II receptor [UTR]） mainly involved in cardiovascular function in humans. The urotensinergic system is also implicated in the urogenital tract. Indeed, U-II relaxes human corpus cavernosum strips and causes an increase in intracavernous pressure （ICP） in rats. In light of this, the U-II/UTR pathway can be considered a new target for the treatment of erectile dysfunction. On this hypothesis, herein we report on two new UTR high affinity-agonists, P5U （H-Asp-c[Pen-Phe-Trp-Lys-Tyr-Cys]-Val-OH） and UPG84（H-Asp-c[Pen-Phe-DTrp-Orn-（pNH2） Phe-Cys]-Val-OH）. The effects of P5U and UPG84 were each compared separately with U-II by monitoring the ICP in anesthetized rats. Intracavernous injection of U-II （0.03-1 nmol）, P5U （0.03-1 nmol） or UPG84 （0.03-1 nmol） caused an increase in ICP. P5U, in particular, elicited a significant increase in ICP as compared to U-II. The observed effect by using P5U at a dose of 0.1 nmol per rat was comparable to the effect elicited by U-II at a dose of 0.3 nmol. Moreover, UPG84 at the lowest dose （0.03 nmol） showed an effect similar to the highest dose of U-II （1 nmol）. Furthermore, UPG84 was found to be more effective than P5U. Indeed, while the lowest dose of P5U （0.03 nmol） did not affect the ICP, UPG84, at the same dose, induced a prominent penile erection in rat. These compounds did not modify the blood pressure, which indicates a good safety profile. In conclusion, UPG84 and P5U may open new perspectives for the management of erectile dysfunction.

关键词： erectile dysfunction intracavernous pressure rat urotensin-II urotensin-II ligands

Ophiolite hosted chromitite formed by supra-subduction zone peridotite–plume interaction

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Geoscience Frontiers 2020年第6期11卷 2083-2102页

作者： Júlia Farré-de-Pablo Joaquín A.Proenza JoséMaría González-Jiménez Thomas Aiglsperger Antonio Garcia-Casco Javier Escuder-Viruete Vanessa Colás Francisco longo Departament de Mineralogia Petrologia i Geologia AplicadaUniversitat de BarcelonaC/Martíi Franquess/n08028BarcelonaSpain Departamento de Mineraloga y Petrologa Universidad de GranadaFacultad de CienciasFuentenueva s/n18002GranadaSpain Department of Civil Engineering and Natural Resources LuleåUniversity of TechnologySE 97187LuleåSweden Instituto Andaluz de Ciencias de la Tierra(CSIC-UGR) Avda.de las Palmeras 4E-18100ArmillaGranadaSpain Instituto Geologico y Minero de Espana C/La Calera 1Tres Cantos28760MadridSpain Instituto de Geología Universidad Nacional Autonoma de MéxicoCiudad Universitaria04510Ciudad de MéxicoMexico Facultad de Ingeniería Universidad Catòlica de CibaoLa VegaDominican Republic

Chromitite bodies hosted in peridotites typical of suboceanic mantle(***)are found in the northern and central part of the Loma Caribe peridotite,in the Cordillera Central of the Dominican *** chromitites are massive pods of small size(less than a few meters across)and veins that intrude both dunite and ***,they are high-Cr chromitites[Cr#=Cr/(Cr+Al)atomic ratio=0.71-0.83]singularly enriched in TiO2(up to 1.25 wt.%),Fe2 O3(2.77-9.16 wt.%)as well as some trace elements(Ga,V,Co,Mn,and Zn)and PGE(up to 4548 ppb in whole-rock).This geochemical signature is unknown for chromitites hosted in oceanic upper mantle but akin to those chromites crystallized from mantle plume derived ***,the melt estimated to be in equilibrium with such chromite from the Loma Caribe chromitites is similar to basalts derived from different source regions of a heterogeneous Caribbean mantle *** mantle plume is responsible for the formation of the Caribbean large Igneous Province(CLIP).Dolerite dykes with back-arc basin basalt(BABB)and enriched mid-ocean ridge basalt(E-MORB)affinities commonly intrude the Loma Caribe peridotite,and are interpreted as evidence of the impact that the Caribbean plume had in the off-axis magmatism of the back-arc basin,developed after the Caribbean island-arc extension in the late *** propose a model in which chromitites were formed in the shallow portion of the back-arc mantle as a result of the metasomatic reaction between the supra-subduction zone(SSZ)peridotites and upwelling plume-related melts.

关键词： Chromitite Ophiolite Plume Mantle Back-arc basin Dominican Republic

Red-emitting CaWO4:Eu^(3+),Tm^(3+)phosphor for solid-state lighting:Luminescent properties and morphology evolution

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Journal of Rare Earths 2022年第2期40卷 226-233,I0002页

作者： L.X.Lovisa I.M.P.da Silva A.A.G.Santiago M.Siu Li E.longo C.A.Paskocimas M.R.D.Bomio F.V.Motta Institute of Physics and Chemistry.Federal University of Itajubd(UNIFEI) ItajubdMG37500-903Brazil LSQM-laboratory of Chemical Synthesis of Materials-Department of Materials Engineering Federal University of Rio Grande Do NorteP.O.Box 152459078-900Natal RNBrazil IFSC USPAv.Trabalhador Sao Carlense400CEP 13566-590Sao CarlosSPBrazil CDMF-LIEC UFSCarP.O.Box 67613565-905Sao Carlos.SPBrazil

CaWO_(4):xEu^(3+),yTm^(3+)crystals were obtained by facile synthesis at low temperature by the microwaveassisted hydrothermal method(MAH).The phase formation,morphology,luminescent properties and ene rgy transfer were *** X-ray diffraction(XRD)re sults show the formation of a scheelitelike tetragonal structure without the presence of secondary *** growth mechanism of hierarchical micro structures based on self-assembly and Ostwald-ripening processes was evaluated,obtaining different types of *** luminescence spectra of CaWO_(4):Eu^(3+),Tm^(3+)at 325 nm excitation show the predominance of red emission at the 5 D0→7 F2(Eu^(3+))transition at 624 *** feature signals dominant behavior of the electric dipole *** presence of Tm^(3+)is notably evident in the absorption spectra by the related excitation transitions:3 H6→1 G4,3 H6→3 F3 and 3 H6→3 *** parameters are discussed to characterize CaWO_(4):Eu^(3+),Tm^(3+)*** study of the emission spectrum as a function of the concentration of Eu^(3+)(x mol%)and Tm^(3+)(y mol%)indicates that the CaWO_(4):Eu^(3+),Tm^(3+)phosphors show stronger red emission intensity and exhibit the CIE value of x=0.63 and y=*** photoluminescence results show 97%high color purity for CaWO_(4):4 mol%Eu^(3+),a high CRI(92%)and a low CCT of 1085 *** results demonstrate that the CaWO_(4):Eu^(3+),Tm^(3+)red phosphors are promising as color converters for application in white light-emitting diodes and display devices.

关键词： CaWO_(4):Eu^(3+),Tm^(3+)microwave-assisted hydrothermal method Photoluminescence Red phosphor Rare earths