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Polymorphisms of the TLR2 and TLR4 genes are associated with risk of gastric cancer in a Brazilian population

World Journal of Gastroenterology 2012年第11期18卷 1235-1242页

作者： juliana garcia de Oliveira Ana Elizabete Silva Department of Biology UNESP-So Paulo State UniversitySo José do Rio Preto Campus15054-000 SPBrazil

AIM： TO investigate toll-like receptor 2 （TLR2） -196 to -274 del, and TLR4 （＋896A/G rs4986790 and ＋1196C/ T rs4986791） polymorphisms at risk of chronic gastritis and gastric cancer in a Brazilian population and associ-ation of gastric lesions with risk factors such as smoking, alcohol intake and Helicobacter pylori infection.METHODS： In this casecontrol study, polymorphism at TLR2 -96 to -174 del was investigated by using the allele-specific polymerase chain reaction （PCR） method, while the PCR-restriction fragment length polymorphism technique was carried out to identify the TLR4 （rs4986790 and rs4986791） genotypes in 607 Brazilian individuals （208 with chronic gastritis-CG, 174 with gastric cancer-GC and 225 controls -C）.RESULTS： The single nucleotide polymorphisms TLR4＋1196ClT was not associated with risk of chronic gastritis or gastric cancer and the homozygous genotypes TLR4＋896GG and TLR4＋1196TF were absent in the studied population. However, the frequency of TLR2 -196 to -174 ins/del ＋ del/del and TLR4＋896AGgenotypes was significantly higher （P 〈 0.01 and P = 0.01, respectively） in the cancer group （33.4% and 11.5%, respectively） than in the control group （16.9% and 4.5%, respectively）. It was also observed that the G-C haplotype of the TLR4＋896A/G＋1196C/T （P = 0.02） and the combination of variant alleles of the TLR21TLR4＋896G （P = 0.02） are associated with susceptibility to gastric cancer. In addition, the multiple logistic regression showed that male gender [odds ratio （OR） = 2.70; 95% CI： 1.66-4.41; P 〈 0.01], alcohol intake （OR = 2.93; 95% CI： 1.76-4.87, P 〈 0.01）, TLR2 -196 to -174 del （OR = 2.64; 95% CI： 1.56-4.44; P 〈 0.01） and TLR4＋896G （OR = 3.19; 95% CI： 1.34- 7.61; P 〈 0.01） polymorphisms were associated with a higher susceptibility to developing this neoplasm.CONCLUSION： Our data indicate that T/R2 -196 to -174 del and TLR4＋896G may increase the risk of gastric cancer in a Brazilian population.

关键词： Polymorphisms Toll-like receptor 2 Toll-like receptor 4 Gastric cancer Gastritis

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Real-time cell analysis and heat shock protein gene expression in the TcA Tribofium castaneum cell line in response to environmental stress conditions

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Insect Science 2017年第3期24卷 358-370页

作者： Andres garcia-Reina Maria juliana Rodriguez-garcia Guillermo Ramis Jose Galian Department of Zoology and Physical Anthropology University of MurciaCampus Mare Nostrum E-30100 Murcia Spain Department of Animal Production Faculty of Veterinary University of MurciaCampus Mare Nostrum E-30100 Murcia Spain

The rust red flour beetle, Tribolium castaneum （Herbst, 1797）（Coleoptera： Tenebrionidae）, is a pest of stored grain and one of the most studied insect model species. Some of the previous studies involved heat response studies in terms of survival and heat shock protein expression, which are regulated to protect other proteins against environ- mental stress conditions. In the present study, we characterize the impedance profile with the xCELLigence Real-Time Cell Analyzer and study the effect of increased temperature in cell growth and viability in the cell line BCIRL-TcA-CLG 1 （TcA） of T castaneum. This novel system measures cells behavior in real time and is applied for the first time to insect cells. Additionally, cells are exposed to heat shock, increased salinity, acidic pH and UV-A light with the aim of measuring the expression levels of lisp27, Hsp68a, and Hsp83 genes. Results show a high thermotolerance of TeA in terms of cell growth and viability. This result is likely related to gene expression results in which a significant up-regulation of all studied Hsp genes is observed after 1 h of exposure to 40 ~C and UV light. All 3 genes show similar expression patterns, but Hsp27 seems to be the most affected. The results of this study validate the RTCA method and reveal the utility of insect cell lines, real-time analysis and gene expression studies to better understand the physiological response of insect cells, with potential applications in different fields of biology such as conservation biology and pest management.

关键词： environmental stress gene expression heat shock proteins insect cells,real-time cell analysis (RTCA) red flour beetle

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Bioactive polysaccharides from medicinal mushrooms:A review on their isolation,structural characteristics and antitumor activity

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Food Bioscience 2022年第5期49卷 119-129页

作者： juliana garcia Francisca Rodrigues Maria Jos´e Saavedra Fernando M.Nunes Guilhermina Marques CITAB-Centre for the Research and Technology of Agro-Environment and Biological Sciences University of Tr´as-os-Montes e Alto Douro5001-801Vila RealPortugal AquaValor-Centro de Valorizaç˜ao e Transferˆencia de Tecnologia da´Agua-Associaç˜ao Rua Dr.Júlio Martins n.◦15400-342ChavesPortugal REQUIMTE/LAQV-Polytechnic of Porto-School of Engineering Rua Dr.Ant´onio Bernardino de Almeida4314249-015PortoPortugal CQ-VR-Centro de Química-Vila Real Food and Wine Chemistry Lab.Chemistry DepartamentUniversity of Tr´as-os-Montes e Alto Douro5001-801Vila RealPortugal

Mushrooms either alone or in combination with conventional cancer treatment have been enhanced the efficacy of chemotherapy and radiotherapy improving the patients’quality of *** therapy effects have been attributed to polysaccharides;the most potent compounds found in the fungi *** to their wide range of biological activity and the backbone of glucose residues linked byβ-(1→3)-glycosidic bonds,often with attached side-chain glucose residues joined byβ-(1→6)linkages,the mushroom’s polysaccharides,particularly theβ-glucans,are the most versatile ***,D-fraction,and schizophyllan from Lentinula edodes,Grifola frondosa,and Schizophyllum commune,respectively are well-knownβ-glucans,however,the precise immunomodulation and anticancer mechanisms of action remain to be *** to several studies,β-glucan can interact with certain receptors on macrophages and dendritic cells,such as dectin-1 and TLRs,producing different cytokines and,in turn,indirectly activating other immune cells including T and B ***,recent findings have proved thatβ-glucans have a direct cytotoxic effect on cancer cells suppressing proliferation and enhancing apoptosis possibly via multiple pathways such as PI3K/Akt/mTOR,NF-κB-,ERK-,ERα-,caspase-and p53-dependent ***,this study intends to provide information on the lentinan,D-fraction,and schizophyllan by examining the extraction procedures,chemical composition,and immunostimulatory and antitumoral biological *** research directions should be directed toward improving the validity and reliability of randomized trials to confirm the potential role ofβ-glucans on the immune system and as anticancer therapy.

关键词： Lentinan D-fraction Schizophyllan Anticancer activity

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TLR2 and TLR4 polymorphisms influence m RNA and protein expression in colorectal cancer

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World Journal of Gastroenterology 2015年第25期21卷 7730-7741页

作者： Marcela Alcantara Proenca juliana garcia de Oliveira Aline Cristina Targa Cadamuro Maysa Succi Joao Gomes Netinho Eny Maria Goloni-Bertolo érika Cristina Pavarino Ana Elizabete Silva Department of Biology UNESPSao Paulo State University USC-Sacred Heart University PróReitoria de Pesquisa e Pós Graduacao Department of Surgery School of MedicineFAMERPSao Josédo Rio Preto 15090-000SPBrazil UPGEM School of MedicineFAMERPSao Josédo Rio Preto 15090-000SPBrazil

AIM: To evaluate the effect of promoter region polymorphisms of toll-like receptor(TLR)2-196 to-174 del and TLR4-1607T/C(rs10759932) on m RNA and protein expression in tumor tissue and of TLR4+896A/G(rs4986790) on colorectal cancer(CRC) ***: The TLR2-196 to-174 del polymorphism was investigated using allele-specific polymerase chain reaction(PCR) and the TLR4-1607T/C and TLR4+896A/G by PCR-restriction fragment length p o l y m o r p h i s m( R F L P). W e g e n o t y p e d 4 3 4 D N A samples from 194 CRC patients and 240 healthy individuals. The m RNA relative quantification(RQ) was performed in 40 tumor tissue samples by quantitative PCR Taq Man assay, using specific probes for TLR2 and TLR4 genes, and ACTB and GAPDH reference geneswere used as endogenous controls. Protein expression was analyzed by immunohistochemistry with specific primary ***: No association was found for TLR4-1607T/C and TLR4+896A/G by three statistical models(logadditive, dominant and recessive). However, based on dominant and log-additive models, the polymorphic variant TLR2-196 to-174 del was associated with increased CRC risk [dominant: odds ratio(OR) = 1.72, 95%CI: 1.03-2.89; P = 0.038 and log-additive: OR =1.59, 95%CI: 1.02-2.48; P = 0.039]. TLR2 m RNA expression was increased in tumor tissue(RQ = 2.36) when compared to adjacent normal tissue(RQ = 1; P < 0.0001), whereas the TLR4 m RNA showed a basal expression(RQ = 0.74 vs RQ = 1, P = 0.452). Immunohistochemistry analysis of TLR2 and TLR4 protein expression was concordant with the findings of m RNA expression. In addition, the TLR2-196 to-174 del variant carriers showed m RNA relative expression 2.19 times higher than wild-genotype carriers. The TLR2 protein expression was also higher for the TLR2-196 to-174 del variant carriers [117 ± 10 arbitrary unit(a.u.) vs 95 ± 4 a.u., P = 0.03]. However, for the TLR4-1607T/C polymorphism no significant difference was found for both m RNA(P = 0.56) and protein expression(P

关键词： Toll-like receptor 2 Toll-like receptor 4 Colorectal cancer Protein expression Gene expression Genetic polymorphisms

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Toll-like receptor 9 polymorphisms and Helicobacter pylori influence gene expression and risk of gastric carcinogenesis in the Brazilian population

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World Journal of Gastrointestinal Oncology 2019年第11期11卷 998-1010页

作者： Manoela Dias Susi de Matos Lourenco Caroline Lucas Trevizani Rasmussen Spencer Luis Marques Payao Ana Flavia Teixeira Rossi Ana Elizabete Silva juliana garcia de Oliveira-Cucolo Department of Graduate-Level Research USCSacred Heart UniversityBauru 17011-970SPBrazil Department of Genetics and Molecular Biology FAMEMA-Marilia Medical SchoolMarília 17519-030SPBrazil Department of Biology Sao Paulo State University-UNESPSao Jose do Rio Preto 15054-000SPBrazil Department of Molecular Biological and Genetics and Molecular Biology Research Unit-UPGEMFaculty of Medicine of Sao Jose do Rio Preto-FAMERPSao Jose do Rio Preto 15090-000SPBrazil

BACKGROUND Toll-like receptors(TLRs)are the first line of host defense,and are involved in Helicobacter pylori(***)recognition and activation of both inflammatory and carcinogenic *** presence of single nucleotide polymorphisms(SNPs)in genes that activate the immune response may modulate the risk of precancerous lesions and gastric cancer(GC).Among them,Toll-like receptor 9(TLR9)polymorphisms have emerged with a risk factor of infectious diseases and cancer,however the studies are still *** To evaluate whether TLR9 rs5743836 and rs187084 SNPs contribute to the risk of gastric carcinogenesis,and its influence on mRNA *** A case-control study was conducted to evaluate two TLR9 SNPs(TLR9-1237 TCrs5743836 and TLR9-1486 CT-rs187084)in chronic gastritis(CG)and GC patients.A total of 609 DNA samples of peripheral blood[248 CG,161 GC,and 200 samples from healthy individuals(C)]were genotyped by polymerase chain reaction-restriction fragment length *** samples were tested for the *** infection using Hpx1 and Hpx2 *** polymerase chain reaction by TaqMan?assay was used to quantify TLR9 mRNA from fresh gastric tissues(48 GC,26 CG,and 14 C).RESULTS For TLR9-1237,the TC+CC or CC genotypes were associated with a higher risk of GC than C[recessive model odds ratio(OR)=5.01,95%confidence interval(CI):2.52-9.94,P<0.0001],and the CG(recessive model OR=4.63;95%CI:2.44-8.79,P<0.0001)*** TLR9-1486,an association between the CT+TT genotypes and increased risk of both GC(dominant model OR=2.72,95%CI:1.57-4.72,P<0.0001)and CG(dominant model OR=1.79,95%CI:1.15-2.79,P=0.0094)was observed when compared to the C ***,the presence of TLR9-1237 TC/CC+TLR9-1486 CC genotypes potentiate the risk for this neoplasm(OR=18.57;95%CI:5.06-68.15,P<0.0001).The TLR9 mRNA level was significantly higher in the GC group(RQ=9.24,P<0.0001)in relation to the CG group(RQ=1.55,P=0.0010)and normal mucosa(RQ=1.0).When the sa

关键词： Toll-like receptor 9 Helicobacter pylori Gastric cancer Chronic gastritis Polymorphisms Gene expression

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Characterization and strong risk association of TLR2 del-196 to-174 polymorphism and Helicobacter pylori and their influence on mRNA expression in gastric cancer

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World Journal of Gastrointestinal Oncology 2020年第5期12卷 535-548页

作者： Caroline de Matos Lourenco Manoela Dias Susi Mariah Cristina Antunes do Nascimento Vilson Serafim Junior Ana Paula Simedan Vila Gabriela Helena Rodrigues-Flemming Eny Maria Goloni-Bertollo Ana Elizabete Silva juliana garcia de Oliveira-Cucolo Department of Graduate-Level Research Sacred Heart UniversityBauruSao Paulo 17011-970Brazil Department of Molecular Biology Sao Josédo Rio Preto School of MedicineSao Josédo Rio PretoSao Paulo 15090-000Brazil Department of Biology Sao Paulo State UniversitySao Josédo Rio PretoSao Paulo 15054-000Brazil

BACKGROUND Toll-like receptor-2(TLR2) is responsible for recognizing Helicobacter pylori(***) and activating the immune response. Polymorphisms in TLR2 may modulate gastric *** To evaluate whether the TLR2 19216 T/C(rs3804099) and TLR2-196 to-174 ins/del(rs111200466) polymorphisms contribute to gastric carcinogenesis in the Brazilian population, and to determine the influence of both polymorphisms and H. pylori infection on TLR2 mRNA *** DNA was extracted from 854 peripheral blood leukocyte or gastric tissue samples[202 gastric cancer(GC), 269 chronic gastritis(CG), and 383 control/healthy(C)]and genotyped by allele-specific PCR or restriction fragment length polymorphism(RFLP)-PCR. Quantitative polymerase chain reaction by Taq Man■ assay was used to quantify TLR2 mRNA levels in fresh gastric tissues(48 GC, 36 CG, and 14 C).RESULTS Regarding the TLR2-196 to -174 polymorphism, the ins/del and del/del genotypes were associated with a higher risk of GC by comparison with the C in all of the analyzed inheritance models(codominant, dominant, recessive, overdominant and log-additive;P < 0.0001). Similarly, an increased risk was observed when comparing the GC and CG groups [codominant(P < 0.0001), dominant(P <0.0001), recessive(P = 0.0260), overdominant(P < 0.0001) and log-additive(P <0.0001)]. In contrast, TLR2 19216 T/C was associated with a protective effect in the GC group compared to the C group [dominant(P = 0.0420) and log-additive(P =0.0300)]. Regarding the association of polymorphisms with H. pylori infection,individuals infected with H. pylori and harboring the TLR2-196 to-174 ins/del polymorphism had an increased risk of gastric carcinogenesis [codominant(P =0.0120), dominant(P = 0.0051), overdominant(P = 0.0240) and log-additive(P =0.0030)], while TLR2 19216 T/C was associated with a protective effect[codominant(P = 0.0039), dominant(P < 0.0001), overdominant(P = 0.0097) and log-additive(P = 0.0021)]. TLR2 mRNA levels were sig

关键词： Toll-like receptor 2 Helicobacter pylori Gastric cancer Chronic gastritis Polymorphisms Gene expression

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Navigating medial patellotibial ligament reconstruction:Clinical perspectives and surgical strategies

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World Journal of Clinical Cases 2025年第1期13卷 6-10页

作者： Juan Pablo Zicaro Ignacio garcia-Mansilla Division of Knee Hospital Italiano de Buenos AiresBuenos Aires 1109Argentina

The surgical approach for patellar instability usually refers to reconstruction of the medial patellofemoral ligament associated with an osteotomy of the tibial tuberosity or a trochleoplasty when *** medial patellotibial ligament and the medial patellomeniscal ligament are secondary stabilizers of the *** this,both the medial patellotibial and patellofemoral ligaments aid in patellar rotation and tilt when the knee is flexed beyond 45°.The medial patellotibial ligament plays a particularly important role in the final stages of stretching in extension and between 40 degrees to 90 degrees of *** clinical relevance and surgical indications for medial patellotibial ligament reconstruction associated with medial patellofemoral ligament reconstruction are still *** editorial explores the surgical indications and clinical results for medial patellotibial ligament reconstruction to improve readers’understanding of this technique,especially because reported clinical outcomes have remained sparse.

关键词： Medial patellotibial ligament Patellar instability Reconstruction Surgical

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Challenges and improvement strategies in the hospitalization of chronic multimorbid patients

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World Journal of Clinical Cases 2025年第3期13卷 35-41页

作者： Andres Fontalba-Navas Francisco Pozo Muñoz Rogelio garcia Cisneros Maria Jose garcia Larrosa Maria del Mar Callejon Gil Ignacio garcia Delgado Maria Belen Jimenez Martinez Antequera Hospital Northern Málaga Integrated Healthcare AreaAntequera 29200AndalusiaSpain Department of Public Health and Psychiatry University of MálagaMálaga 29010Spain Antequera Hospital Northern Málaga Antequera Integrated Healthcare AreaAntequera 29200MálagaSpain

BACKGROUND Addressing the growing challenge of hospitalizing chronic multimorbid patients,this study examines the strain these conditions impose on healthcare systems at a local level,focusing on a pilot *** diseases and complex patients require comprehensive management strategies to reduce healthcare burdens and improve patient *** proven effective,this pilot model has the potential to be replicated in other healthcare settings to enhance the management of chronic multimorbid *** To evaluate the effectiveness of the high complexity unit(HCU)in managing chronic multimorbid patients through a multidisciplinary care model and to compare it with standard hospital *** The study employed a descriptive longitudinal approach,analyzing data from the Basic Minimum Data Set(BMDS)to compare hospitalization variables among the HCU,the Internal Medicine Service,and other services at Antequera Hospital throughout *** HCU,designed for patients with complex chronic conditions,integrates a patient-centered model emphasizing multidisciplinary care and continuity *** The study employed a descriptive longitudinal approach,analyzing data from the BMDS to compare hospitalization variables among the HCU,the Internal Medicine Service,and other services at Antequera Hospital throughout *** HCU,designed for patients with complex chronic conditions,integrates a patient-centered model emphasizing multidisciplinary care and continuity *** This study demonstrates the effectiveness of the HCU in managing patients with complex chronic diseases through a multidisciplinary *** coordinated care provided by the HCU results in improved patient outcomes,reduced unnecessary hospitalizations,and better management of patient *** superiority of the HCU compared to standard care is evident in key outcomes such as fewer readmissions and higher patient satisfaction,reinforcing its value as a model of ca

关键词： High complexity unit Chronic multimorbidity Patient-centered care Integrated care Healthcare management

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Bioleaching of zinc from gold ores using Acidithiobacillus ferrooxidans

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International Journal of Minerals,Metallurgy and Materials 2009年第4期16卷 368-374页

作者： Pakawadee Kaewkannetra Francisco Jose garcia-garcia Tze Yen Chiu Department of Biotechnology Faculty of TechnologyKhon Kaen University Corrosion and Protection Centre School of MaterialsThe University of Manchester Centre of Water Science Cranfield University

The present work investigated microbial leaching of zinc from ore using Acidithiobacillus ferrooxidans （ATCC 14859）. The ore samples, consisted of 13wt% zinc, were obtained from a gold mine in north-eastern Thailand. A shake flask study was performed on the ore samples using a rotary shaker under the following fixed conditions （250 r·min^-1, 30℃ for 16 d）. The influence of various conditions, namely medium type （with and without iron）, particle ore size （〈20, 20-40, 40-60, 60-100, and 〉100 mesh）, ore density （20 kg·m^-3, 50 kg·m^-3, and 100 kg·m^-3）, and pH of the medium （2, 2.5, 2.8, and 3）, were investigated. The microbial leaching was assessed by determining the concentration of zinc in the medium and compared with the initial sample concentration. The results show that Acidithiobacillus ferrooxidans can successfully leach zinc by as much as 6 times compared with the control experiment （without Acidithiobacillus ferrooxidans ferrooxidans）. The maximum efficiency （92.3%） for microbial leaching is obtained in iron-containing medium, 20-40 mesh ore sizes, 20 kg·m^-3 ore density at pH 2.8, and the zinc content is found in the medium at about 120 mg·m^-1.

关键词： bioleaching Acidithiobacillusferrooxidans gold ores gold mine

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Renewable Energy Penetration Strengthened Using a Reversible Solid Oxide Cell Installed in a Building

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CSEE Journal of Power and Energy Systems 2022年第2期8卷 360-368页

作者： Mario Lamagna Davide Astiaso garcia Astronautical Electrical and Energy Engineering Department(DIAEE)Sapienza University of RomeItaly Planning DesignTechnology of Architecture Department(DPDTA)Sapienza University of RomeItaly

The renewable energy source(RES)penetration in end use must be strengthened to reach the prefixed decarbonization targets.A penetration obstacle is represented by the Power Grid,designed with an architecture disinclined to RES ***,different solutions are available to integrate these latter issues without affecting the Grid,among these,the reversible Solid Oxide Cell(rSOC)promises high efficiencies and the possibility to control energy fluxes in both production and *** this study,a series of hourly simulations based on real data were designed to evaluate the rSOC capacity to integrate a large number of RESs in the end use of three different buildings,through analyzing the possible congestion on the Power *** a rSOC model we chose the Smart Energy Hub proposed by Sylfen while for the buildings we selected a school,a hotel,and an office located in Procida,*** results show the rSOC capacity to integrate RES increased from 40%to 62%according to the storage capacity and the building’s hourly load curve and seasonal consumptions.

关键词： Green hydrogen RES integration rSOC power-to-power

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