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| 1 | Efficacy of neoadjuvant therapy and surgical rescue for locally advanced hepatoblastomas:10 year single-center experience and literature review显示文摘AIM:To report our experience with long-term outcomes after multimodal management therapy.METHODS:An observational retrospective study was performed containing seven patients with hepatoblastoma(Hbl)treated in our institution,a tertiary referral center,from 2003 to 2011.Demographic,preoperative,surgical,and outcome variables were collected.A survival analysis and a review of the current literature related to combination neoadjuvant chemotherapy and surgical resection on Hbl were performed.RESULTS:The median age at surgery was 14.4 mo,with a male to female ratio of 4:3.Pretext staging at diagnosis was as follows:stageⅠ,4 cases;stageⅡ,2 patients;and stageⅢ,1 case.Mean pretreatment tumor volume was 735 cm3.Five out of seven patients received neoadjuvant chemotherapy according to SIOPEL-3 or SIOPEL-6 protocols.Tumor volume and alphafetoprotein levels significantly dropped after neoadjuvant therapy.Surgical procedures performed included hemihepatectomies,segmentectomies and atypical resection.All patients received chemotherapy after surgery.Median postoperative hospital stay was 8 d.All patients were alive and disease-free after a median follow-up period of 23 mo.With regards to the literature review,seventeen articles were found that were related to our search.CONCLUSION:Our series shows how multimodal management of Hbl,exhaustive control and a meticulous surgical approach leads to almost 100%complete resection with optimal postoperative results. | Dolores Ayllon Teran Oscar Gómez Beltran Rubén Ciria Bru Elena Mateos González María José Pea Rosa Antonio Luque Molina Pedro López Cillero Javier Briceo Delgado | 2014 | World Journal of Gastroenterology2014,20,29: | 12 |
| 2 | Naringenin prevents experimental liver fibrosis by blocking TGFβ-Smad3 and JNK-Smad3 pathways显示文摘AIM To study the molecular mechanisms involved in the hepatoprotective effects of naringenin(NAR)on carbon tetrachloride(CCl4)-induced liver fibrosis.METHODS Thirty-two male Wistar rats(120-150 g)were randomly divided into four groups:(1)a control group(n=8)that received 0.7%carboxy methyl-cellulose(NAR vehicle)1 m L/daily p.o.;(2)a CCl4 group(n=8)that received 400 mg of CCl4/kg body weight i.p.3 times a week for 8 wk;(3)a CCl4+NAR(n=8)group that received 400 mg of CCl4/kg body weight i.p.3times a week for 8 wk and 100 mg of NAR/kg body weight daily for 8 wk p.o.;and(4)an NAR group(n=8)that received 100 mg of NAR/kg body weight daily for 8 wk p.o.After the experimental period,animals were sacrificed under ketamine and xylazine anesthesia.Liver damage markers such as alanine aminotransferase(ALT),alkaline phosphatase(AP),γ-glutamyl transpeptidase(γ-GTP),reduced glutathione(GSH),glycogen content,lipid peroxidation(LPO)and collagen content were measured.The enzymatic activity of glutathione peroxidase(GPx)was assessed.Liver histopathology was performed utilizing Masson’s trichrome and hematoxylin-eosin stains.Zymography assays for MMP-9 and MMP-2 were carried out.Hepatic TGF-β,α-SMA,CTGF,Col-I,MMP-13,NF-κB,IL-1,IL-10,Smad7,Smad3,p Smad3 and p JNK proteins were detected via western blot.RESULTS NAR administration prevented increases in ALT,AP,γ-GTP,and GPx enzymatic activity;depletion of GSH and glycogen;and increases in LPO and collagen produced by chronic CCl4 intoxication(P<0.05).Liver histopathology showed a decrease in collagen deposition when rats received NAR in addition to CCl4.Although zymography assays showed that CCl4 produced an increase in MMP-9 and MMP-2gelatinase activity;interestingly,NAR administration was associated with normal MMP-9 and MMP-2 activity(P<0.05).The anti-inflammatory,antinecrotic and antifibrotic effects of NAR may be attributed to its ability to prevent NF-κB activation and the subsequent production of IL-1 and IL-10(P<0.05).NAR completely prevented the increase in TGF-β,α-SMA,CTGF,Col-1,and MMP-13 proteins compared with the CCl4-treated group(P<0.05).NAR prevented Smad3phosphorylation in the linker region by JNK since this flavonoid blocked this kinase(P<0.05).CONCLUSION NAR prevents CCl4 induced liver inflammation,necrosis and fibrosis,due to its antioxidant capacity as a free radical inhibitor and by inhibiting the NF-κB,TGF-β-Smad3 and JNK-Smad3 pathways. | Erika Hernández-Aquino Natanael Zarco Sael Casas-Grajales Erika Ramos-Tovar Rosa E Flores-Beltrán Jonathan Arauz Mineko Shibayama Liliana Favari Víctor Tsutsumi José Segovia Pablo Muriel | 2017 | World Journal of Gastroenterology2017,23,24: | 10 |
| 3 | A pilot study of the modulation of sirtuins on arylamine N-acetyltransferase 1 and 2 enzymatic activity显示文摘Arylamine N-acetyltransferase(NAT; E.C. 2.3.1.5) enzymes are responsible for the biotransformation of several arylamine and hydrazine drugs by acetylation. In this process, the acetyl group transferred to the acceptor substrate produces NAT deacetylation and, in consequence, it is susceptible of degradation. Sirtuins are protein deacetylases, dependent on nicotine adenine dinucleotide,which perform post-translational modifications on cytosolic proteins. To explore possible sirtuin participation in the enzymatic activity of arylamine NATs, the expression levels of NAT1, NAT2,SIRT1 and SIRT6 in peripheral blood mononuclear cells(PBMC) from healthy subjects were examined by flow cytometry and Western blot. The in situ activity of the sirtuins on NAT enzymatic activity was analyzed by HPLC, in the presence or absence of an agonist(resveratrol) and inhibitor(nicotinamide) of sirtuins. We detected a higher percentage of positive cells for NAT2 in comparison with NAT1, and higher numbers of SIRT1t cells compared to SIRT6 in lymphocytes. In situ NAT2 activity in the presence of NAM inhibitors was higher than in the presence of its substrate, but not in the presence ofresveratrol. In contrast, the activity of NAT1 was not affected by sirtuins. These results showed that NAT2 activity might be modified by sirtuins. | Eneida Turiján-Espinoza Rául Alejandro Salazar-González Edith Elena Uresti-Rivera Gloria Estela Hernández-Hernández Montserrat Ortega-Juárez Rosa Milán Diana Portales-Pérez | 2018 | Acta Pharmaceutica Sinica B2018,8,2: | 7 |
| 4 | Myocardial infarction with non-obstructive coronary arteries: A comprehensive review and future research directions显示文摘Acute coronary syndromes constitute a variety of myocardial injury presentations that include a subset of patients presenting with myocardial infarction with non-obstructive coronary arteries(MINOCA).This acute coronary syndrome differs from type 1 myocardial infarction(MI)regarding patient characteristics,presentation,physiopathology,management,treatment,and prognosis.Two-thirds of MINOCA subjects present ST-segment elevation;MINOCA patients are younger,are more often female and tend to have fewer cardiovascular risk factors.Moreover,MINOCA is a working diagnosis,and defining the aetiologic mechanism is relevant because it affects patient care and prognosis.In the absence of relevant coronary artery disease,myocardial ischaemia might be triggered by an acute event in epicardial coronary arteries,coronary microcirculation,or both.Epicardial causes of MINOCA include coronary plaque disruption,coronary dissection,and coronary spasm.Microvascular MINOCA mechanisms involve microvascular coronary spasm,takotsubo syndrome(TTS),myocarditis,and coronary thromboembolism.Coronary angiography with non-significant coronary stenosis and left ventriculography are first-line tests in the differential study of MINOCA patients.The diagnostic arsenal includes invasive and non-invasive techniques.Medical history and echocardiography can help indicate vasospasm or thrombosis,if one finite coronary territory is affected,or specify TTS if apical ballooning is present.Intravascular ultrasound,optical coherence tomography,and provocative testing are encouraged.Cardiac magnetic resonance is a cornerstone in myocarditis diagnosis.MINOCA is not a benign diagnosis,and its polymorphic forms differ in prognosis.MINOCA care varies across centres,and future multi-centre clinical trials with standardized criteria may have a positive impact on defining optimal cardiovascular care for MINOCA patients. | Rafael Vidal-Perez Charigan Abou Jokh Casas Rosa Maria Agra-Bermejo Belén Alvarez-Alvarez Julia Grapsa Ricardo Fontes-Carvalho Pedro Rigueiro Veloso Jose Maria Garcia Acuña Jose Ramon Gonzalez-Juanatey | 2019 | World Journal of Cardiology2019,11,12: | 6 |
| 5 | Rifaximin,but not growth factor 1,reduces brain edema in cirrhotic rats显示文摘AIM:To compare rifaximin and insulin-like growth factor(IGF)-1 treatment of hyperammonemia and brain edema in cirrhotic rats with portal occlusion.METHODS:Rats with CCl4-induced cirrhosis with ascites plus portal vein occlusion and controls were randomized into six groups:Cirrhosis;Cirrhosis + IGF-1;Cirrhosis + rifaximin;Controls;Controls + IGF-1;and Controls + rifaximin.An oral glutamine-challenge test was performed,and plasma and cerebral ammonia,glucose,bilirubin,transaminases,endotoxemia,brain water content and ileocecal cultures were measured and liver histology was assessed.RESULTS:Rifaximin treatment significantly reduced bacterial overgrowth and endotoxemia compared with cirrhosis groups,and improved some liver function parameters(bilirubin,alanine aminotransferase and aspartate aminotransferase).These effects were associated with a significant reduction in cerebral water content.Blood and cerebral ammonia levels,and area-underthe-curve values for oral glutamine-challenge tests were similar in rifaximin-treated cirrhotic rats and control group animals.By contrast,IGF-1 administration failed to improve most alterations observed in cirrhosis.CONCLUSION:By reducing gut bacterial overgrowth,only rifaximin was capable of normalizing plasma and brain ammonia and thereby abolishing low-grade brain edema,alterations associated with hepatic encephalopathy. | Gemmaòdena Mireia Miquel Anna Serafín Amparo Galan Rosa Morillas Ramon Planas Ramon Bartolí | 2012 | World Journal of Gastroenterology2012,18,17: | 6 |
| 6 | Laparoscopic approach in gastrointestinal emergencies显示文摘This review focuses on the laparoscopic approach to gastrointestinal emergencies and its more recent indications. Laparoscopic surgery has a specific place in elective procedures, but that does not apply in emergency situations. In specific emergencies, there is a huge range of indications and different techniques to apply, and not all of them are equally settle. We consider that the most controversial points in minimally invasive procedures are indications in emergency situations due to technical difficulties. Some pathologies, such as oesophageal emergencies, obstruction due to colon cancer, abdominal hernias or incarcerated postsurgical hernias, are nearly always resolved by conventional surgery, that is, an open approach due to limited intraabdominal cavity space or due to the vulnerability of the bowel. These technical problems have been solved in many diseases, such as for perforated peptic ulcer or acute appendectomy for which a laparoscopic approach has become a wellknown and globally supported procedure. On the other hand, endoscopic procedures have acquired further indications, relegating surgical solutions to a second place; this happens in cholangitis or pancreatic abscess drainage. This endoluminal approach avoids the need for laparoscopic development in these diseases. Nevertheless, new instruments and new technologies could extend the laparoscopic approach to a broader array of potentials procedures. There remains, however, a long way to go. | Rosa M Jimenez Rodriguez Juan José Segura-Sampedro Mercedes Flores-Cortés Francisco López-Bernal Cristobalina Martín Verónica Pino Diaz Felipe Pareja Ciuro Javier Padillo Ruiz | 2016 | World Journal of Gastroenterology2016,22,9: | 5 |
| 7 | Adjuvant therapy sparing in rectal cancer achieving complete response after chemoradiation显示文摘AIM:To evaluate the long-term results of conventional chemoradiotherapy and laparoscopic mesorectal excision in rectal adenocarcinoma patients without adjuvant therapy.METHODS:Patients with biopsy-proven adenocarcinoma of the rectum staged cT3-T4 by endoscopic ultrasound or magnetic resonance imaging received neoadjuvant continuous infusion of 5-fluorouracil for five weeks and concomitant radiotherapy.Laparoscopic surgery was planned after 5-8 wk.Patients diagnosed with ypT0N0 stage cancer were not treated with adjuvant therapy according to the protocol.Patients with ypT1-2N0 or ypT3-4 or N+were offered 5-fluorouracil-based adjuvant treatment on an individual basis.An external cohort was used as a reference for the findings.RESULTS:One hundred and seventy six patients were treated with induction chemoradiotherapy and 170underwent total mesorectal excision.Cancer staging of ypT0N0 was achieved in 26/170(15.3%)patients.After a median follow-up of 58.3 mo,patients withypT0N0 had five-year disease-free and overall survival rates of 96%(95%CI:77-99)and 100%,respectively.We provide evidence about the natural history of patients with localized rectal cancer achieving a complete response after preoperative chemoradiation.The inherent good prognosis of these patients will have implications for clinical trial design and care of patients.CONCLUSION:Withholding adjuvant chemotherapy after complete response following standard neoadjuvant chemoradiotherapy and laparoscopic mesorectal excision might be safe within an experienced multidisciplinary team. | Xabier García-Albéniz Rosa Gallego Ralf Dieter Hofheinz Gloria Fernández-Esparrach Juan Ramón Ayuso-Colella Josep Antoni Bombí Carles Conill Miriam Cuatrecasas Salvadora Delgado Angels Ginés Rosa Miquel Mario Pagés Estela Pineda Verónica Pereira Aarón Sosa Oscar Reig Iván Victoria Luis Feliz Antonio María de Lacy Antoni Castells Iris Burkholder Andreas Hochhaus Joan Maurel | 2014 | World Journal of Gastroenterology2014,20,42: | 5 |
| 8 | Aminoguanidine impedes human pancreatic tumor growth and metastasis development in nude mice显示文摘AIM:To study the action of aminoguanidine on pancreatic cancer xenografts in relation to cell proliferation,apoptosis,redox status and vascularization.METHODS:Xenografts of PANC-1 cells were developed in nude mice. The animals were separated into two groups:control and aminoguanidine treated. Tumor growth,survival and appearance of metastases were determined in vivo in both groups. Tumors were excised and ex vivo histochemical studies were performed. Cell growth was assessed by Ki-67 expression. Apoptosis was studied by intratumoral expression of B cell lymphoma-2 protein (Bcl-2) family proteins and Terminal deoxynucleotidyl transferase biotin-dUTP Nick End Labeling (Tunel). Redox status was evaluated by the expression of endothelial nitric oxide synthase (eNOS),catalase,copper-zinc superoxide dismutase (CuZnSOD),manganese superoxide dismutase (MnSOD) and glutathione peroxidase (GPx). Finally,vascularization was determined by Massons trichromic staining,and by VEGF and CD34 expression.RESULTS:Tumor volumes after 32 d of treatment by aminoguanidine (AG) were significantly lower than in control mice (P < 0.01). Median survival of AG mice was significantly greater than control animals (P < 0.01). The appearance of both homolateral and contralateral palpable metastases was significantly delayed in AG group. Apoptotic cells,intratumoral vascularization (trichromic stain) and the expression of Ki-67,Bax,eNOS,CD34,VEGF,catalase,CuZnSOD and MnSOD were diminished in AG treated mice (P < 0.01),while the expression of Bcl-2 and GPx did not change.CONCLUSION:The antitumoral action of aminoguanidine is associated with decreased cell proliferation,reduced angiogenesis,and reduced expression of antioxidant enzymes. | Nora A Mohamad Graciela P Cricco Lorena A Sambuco Máximo Croci Vanina A Medina Alicia S Gutiérrez Rosa M Bergoc Elena S Rivera Gabriela A Martín | 2009 | World Journal of Gastroenterology2009,15,9: | 3 |
| 9 | Intravitreal stem cell paracrine properties as a potential neuroprotective therapy for retinal photoreceptor neurodegenerative diseases显示文摘Retinal degenerations are the leading causes of irreversible visual loss worldwide. Many pathologies included under this umbrella involve progressive degeneration and ultimate loss of the photoreceptor cells, with age-related macular degeneration and inherited and ischemic retinal diseases the most relevant. These diseases greatly impact patients' daily lives, with accompanying marked social and economic consequences. However, the currently available treatments only delay the onset or slow progression of visual impairment, and there are no cures for these photoreceptor diseases. Therefore, new therapeutic strategies are being investigated, such as gene therapy, optogenetics, cell replacement, or cell-based neuroprotection. Specifically, stem cells can secrete neurotrophic, immunomodulatory, and anti-angiogenic factors that potentially protect and preserve retinal cells from neurodegeneration. Further, neuroprotection can be used in different types of retinal degenerative diseases and at different disease stages, unlike other potential therapies. This review summarizes stem cell-based paracrine neuroprotective strategies for photoreceptor degeneration, which are under study in clinical trials, and the latest preclinical studies. Effective retinal neuroprotection could be the next frontier in photoreceptor diseases, and the development of novel neuroprotective strategies will address the unmet therapeutic needs. | Kevin Puertas-Neyra Ricardo Usategui-Martín Rosa MCoco Ivan Fernandez-Bueno | 2020 | Neural Regeneration Research2020,15,9: | 3 |
| 10 | Hepatic Expression of CXC Chemokines Predicts Portal Hypertension and Survival in Patients With Alcoholic Hepatitis显示文摘 | Marlene Dominguez Rosa Miquel Jordi Colmenero Montserrat Moreno Joan–Carles García–Pagán Jaime Bosch Vicente Arroyo Pere Ginès Juan Caballería Ramón Bataller | 2009 | Gastroenterology2009,,5: | 3 |
| 11 | Dendritic cell deficiencies persist seven months after SARS-CoV-2 infection显示文摘Severe Acute Respiratory Syndrome Coronavirus(SARS-CoV)-2 infection induces an exacerbated inflammation driven by innate immunity components.Dendritic cells(DCs)play a key role in the defense against viral infections,for instance plasmacytoid DCs(pDCs),have the capacity to produce vast amounts of interferon-alpha(IFN-α).In COVID-19 there is a deficit in DC numbers and IFN-αproduction,which has been associated with disease severity.In this work,we described that in addition to the DC deficiency,several DC activation and homing markers were altered in acute COVID-19 patients,which were associated with multiple inflammatory markers.Remarkably,previously hospitalized and nonhospitalized patients remained with decreased numbers of CD1c+myeloid DCs and pDCs seven months after SARS-CoV-2 infection.Moreover,the expression of DC markers such as CD86 and CD4 were only restored in previously nonhospitalized patients,while no restoration of integrinβ7 and indoleamine 2,3-dyoxigenase(IDO)levels were observed.These findings contribute to a better understanding of the immunological sequelae of COVID-19. | Alberto Pérez-Gómez Joana Vitallé Carmen Gasca-Capote Alicia Gutierrez-Valencia María Trujillo-Rodriguez Ana Serna-Gallego Esperanza Muñoz-Muela María de los Reyes Jiménez-Leon Mohamed Rafii-El-Idrissi Benhnia Inmaculada Rivas-Jeremias Cesar Sotomayor Cristina Roca-Oporto Nuria Espinosa Carmen Infante-Domínguez Juan Carlos Crespo-Rivas Alberto Fernández-Villar Alexandre Pérez-González Luis Fernando López-Cortés Eva Poveda Ezequiel Ruiz-Mateos JoséMiguel Cisneros Sonsoles Salto-Alejandre Judith Berastegui-Cabrera Pedro Camacho-Martínez Carmen Infante-Domínguez Marta Carretero-Ledesma Juan Carlos Crespo-Rivas Eduardo Márquez JoséManuel Lomas Claudio Bueno Rosario Amaya JoséAntonio Lepe Jerónimo Pachón Elisa Cordero Javier Sánchez-Céspedes Manuela Aguilar-Guisado Almudena Aguilera Clara Aguilera Teresa Aldabo-Pallas Verónica Alfaro-Lara Cristina Amodeo Javier Ampuero María Dolores Avilés Maribel Asensio Bosco Barón-Franco Lydia Barrera-Pulido Rafael Bellido-Alba Máximo Bernabeu-Wittel Candela Caballero-Eraso Macarena Cabrera Enrique Calderón Jesús Carbajal-Guerrero Manuela Cid-Cumplido Yael Corcia-Palomo Juan Delgado Antonio Domínguez-Petit Alejandro Deniz Reginal Dusseck-Brutus Ana Escoresca-Ortega Fátima Espinosa Nuria Espinosa Michelle Espinoza Carmen Ferrándiz-Millón Marta Ferrer Teresa Ferrer Ignacio Gallego-Texeira Rosa Gámez-Mancera Emilio García Horacio García-Delgado Manuel García-Gutiérrez María Luisa Gascón-Castillo Aurora González-Estrada Demetrio González Carmen Gómez-González Rocío González-León Carmen Grande-Cabrerizo Sonia Gutiérrez Carlos Hernández-Quiles Inmaculada Concepción Herrera-Melero Marta Herrero-Romero Luis Jara Carlos Jiménez-Juan Silvia Jiménez-Jorge Mercedes Jiménez-Sánchez Julia Lanseros-Tenllado Carmina López Isabel López Álvaro López-Barrios Luis F.López-Cortés Rafael Luque-Márquez Daniel Macías-García Guillermo Martín-Gutiérrez Luis Martín-Villén JoséMolina Aurora Morillo María Dolores Navarro-Amuedo Dolores Nieto-Martín Francisco Ortega María Paniagua-García Amelia Peña-Rodríguez Esther Pérez Manuel Poyato Julia Praena-Segovia Rafaela Ríos Cristina Roca-Oporto Jesús F.Rodríguez María Jesús Rodríguez-Hernández Santiago Rodríguez-Suárez Ángel Rodríguez-Villodres Nieves Romero-Rodríguez Ricardo Ruiz Zida Ruiz de Azua Celia Salamanca Sonia Sánchez Víctor Manuel Sánchez-Montagut César Sotomayor Alejandro Suárez Benjumea Javier Toral | 2021 | Cellular & Molecular Immunology2021,18,9: | 2 |
| 12 | Learning curve for robotic-assisted laparoscopic rectal cancer surgery显示文摘 | Rosa M. Jiménez-Rodríguez José Manuel Díaz-Pavón Fernando Portilla de Juan Emilio Prendes-Sillero Hisnard Cadet Dussort Javier Padillo | 2013 | International Journal of Colorectal Disease2013,,6: | 2 |
| 13 | The paradigm of protein acetylation in Parkinson's disease显示文摘Acetylation is a post-translational modification that is regulated by two antagonistic enzymes,histone acetyltransferases(HATs)and histone deacetylases(HDACs).HATs transfer the acetyl group from acetyl-CoA to lysine residues of proteins while HDACs remove it(Yakhine-Diop et al.,2018b).The impairment of HAT or HDAC activity elicits changes in the protein acetylation status which disturb several cellular processes,among others,gene expression,autophagy etc.,leading finally to cell death.Both enzymes are associated with Parkinson’s disease(PD)pathogenesis.In dopaminergic cells,neurotoxins provoke apoptotic cell death by increasing histone acetylation levels.While paraquat(Song et al.,2011)and rotenone(Feng et al.,2015)reduce HDAC activity,dieldrin(Song et al.,2010)enhances HAT activity.However in vivo,paraquat-induced upregulation ofα-synuclein triggers histone hypoacetylation. | Sokhna M.S.Yakhine-Diop Guadalupe Martínez-Chacón Elisabet Uribe-Carretero Mireia Niso-Santano Rosa A.González-Polo José M.Fuentes | 2019 | Neural Regeneration Research2019,14,6: | 2 |
| 14 | Evaluation of hepatocellular carcinoma using SonoVue, a second generation ultrasound contrast agent: correlation with cellular differentiation显示文摘 | Carlos Nicolau Violeta Catalá Ramón Vilana Rosa Gilabert Luis Bianchi Manel Solé Mario Pagés Concepció Brú | 2004 | European Radiology2004,,6: | 2 |
| 15 | Source origin of trace elements in PM from regional background, urban and industrial sites of Spain显示文摘 | X. Querol M. Viana A. Alastuey F. Amato T. Moreno S. Castillo J. Pey J. de la Rosa A. Sánchez de la Campa B. Artí?ano P. Salvador S. García Dos Santos R. Fernández-Patier S. Moreno-Grau L. Negral M.C. Minguillón E. Monfort J.I. Gil A. Inza L.A. Ortega J.M | 2007 | Atmospheric Environment2007,,34: | 2 |
| 16 | Effect of low level laser therapy on dental pulp during orthodontic movement显示文摘AIM: To validate the protocol described here to be used in future clinical trials related to the effect of laser therapy on dental pulp. METHODS: Histologically treated samples from eight human healthy premolar teeth obtained from the middle root level were distributed in four groups: group 1(G1) absolute control; group 2(G2) only laser irradiation; group 3(G3) exposed only to orthodontics; and group 4(G4) treated with orthodontics and laser. Laser treatment was performed at 830 nm wavelength, 100 mW(energy 80 J/cm2, 2.2 J), for 22 s in the vestibular surface and 22 s in the palatal surface, 1 mm away from the dental root mucosa. Three staining methods were performed: hematoxylin-eosin(HE), Masson's Trichrome method and Gomori's method.RESULTS: The pulp histology parameters were evaluated and the results classified in to 3 parts: an inflammatory response, soft tissue response(dental pulp) and hard tissue response(dentin and predentin). There was no inflammation(chronic or acute) in any of the evaluated groups. The zones of pulp necrosis were found in one premolar of G3 and in one of G4; in groups G2 and G4 there was higher angiogenesis than in the other two groups. G4 group presented the highest level of vascularization. A reduced nerve density was observed in G3. A G2 specimen showed increased nerve density. A higher rate of calcification was observed in G1 compared to G2. Denticles, either real or false, were observed in G1, G2 and G3. Sclerosis of dentin and focal dentin loss was observed among all the groups. Secondary dentin was present in one sample in G1 and G2. A necrosis zone was found in one sample of G3 and G4. No differences between groups were observed in the odontoblast irregularity layer but the layer was wider in the group treated with laser only. A notable difference was detected in reduction of the cell-free layer between the groups G1 and G4. The findings in pulp tissue favor its adaptative response against dental movement induced by orthodontics. No definitive conclusions may be derived as this is a pilot study. CONCLUSION: The protocol described here was shown to be an effective method to evaluate changes in dental pulp submitted to low level laser in teeth under orthodontic movement. | ngela Domínguez Rosa Emilia Ballesteros Jairo Hernán Viáfara Oscar Mario Tamayo | 2013 | World Journal of Methodology2013,3,2: | 2 |
| 17 | A human ESC model for MLL-AF4 leukemic fusion gene reveals an impaired early hematopoietic-endothelial specification显示文摘MLL-AF4 熔化基因是在在婴儿的高风险的尖锐成淋巴细胞的白血病的一个特点 genomic 错误。尽管 MLL-AF4 在人的开发期间出生前地产生,这很好被建立,它在在 utero 的造血的开发的效果仍然保持未经勘探。我们创造了一个人特定的细胞的系统在 MLL-AF4-expressing 人的胚胎的干细胞(hESCs ) 学习早 hemato-endothelial 开发。介绍的功能的研究,同种细胞的分析和基因表示表明在 hESCs 的 MLL-AF4 的那表情有 phenotypic,功能并且基因表示影响。MLL-AF4 在 hESCs 充当全球 transcriptional 使活跃之物和 homeobox 基因表示的一个积极管理者。机能上地, MLL-AF4 从 hESCs 提高 hemogenic 先锋的说明,但是强烈损害进一步造血的承诺赞成 endothelial 房间命运。MLL-AF4 hESCs transcriptionally 被告知向对 endothelial 成熟敏感的 hemogenic 先锋区分,由联系到 vascular-endothelial 功能和早造血作用的主人基因的显著 upregulation 思考了。而且,我们报导那 MLL-AF4 表情不是足够的转变导出 hESC 的造血的房间。这个工作说明 hESCs 怎么可以提供唯一的卓见进人的开发并且推进我们理解白血病的熔化基因,知道出生前地产生,调整人的胚胎的造血的说明。 | Clara Bueno Rosa Montes Gustavo J Melen Verdnica Ramos-Mejia Pedro J Real Ver6nica Ayllo'n Laura Sanchez Gertmdis Ligero Inmaculada Gutierrez-Aranda Agustin F Femfindez Mario F Fraga Inmaculada Moreno-Gimeno Deborah Btlrks Maria del Carmen Plaza-Calonge Juan C Rodriguez-Manzaneque Pablo Menendez | 2012 | Cell Research2012,22,6: | 2 |
| 18 | Norfloxacin vs Ceftriaxone in the Prophylaxis of Infections in Patients With Advanced Cirrhosis and Hemorrhage显示文摘 | Javier Fernández Luis Ruiz del Arbol Cristina Gómez Rosa Durandez Regina Serradilla Carlos Guarner Ramón Planas Vicente Arroyo Miguel Navasa | 2006 | Gastroenterology2006,,4: | 2 |
| 19 | Antimicrobial activity and chemical composition of Thymus vulgaris , Thymus zygis and Thymus hyemalis essential oils显示文摘 | María C. Rota Antonio Herrera Rosa M. Martínez Jose A. Sotomayor María J. Jordán | 2007 | Food Control2007,,7: | 2 |
| 20 | Lipid-Rich Variant of Pancreatic Endocrine Neoplasms显示文摘 | Rajendra Singh Olca Basturk David S Klimstra Giuseppe Zamboni Runjan Chetty Sanaa Hussain Stefano La Rosa Asli Yilmaz Paola Capelli Carlo Capella Jeanette D Cheng N Volkan Adsay | 2006 | The American Journal of Surgical Pathology2006,,2: | 2 |