449 research outputs found

    Integrated Sanitation and Hygiene Program to Curb the Case of Helminthiasis: An Experimental Study Among School-Age Children in a Coastal Town in the Philippines

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    Approximately 24% of the world’s populations, mostly school-age children, are infected withsoil-transmitted helminthes; with the majority in tropical and subtropical areas. ThePhilippine islands are endemic to soil-transmitted helminth with approximately 25 millionFilipinos at risk of acquiring the infection. Despite the deworming program of theDepartment of Health (DOH), re-infection is very common. This study investigated the effectof integrated sanitation and hygiene program among the second grade students of a coastaltown in the Philippines. Utilizing quasi-experimental study, two group pretest and posttestdesign, 70 participants from the elementary school of a coastal town in the Philippines werechosen randomly to join the study. Overall result showed that experimental group maintaineda zero re-infection during the first and second months after the intervention; while the controlhad one case of re-infection. Moreover, result showed significant difference during pretestand posttest on knowledge (p = <0.05) and self-efficacy (p = <0.05) but not significant onpractice (p = 0.77). Analyzing the two groups, significant difference was noted between theexperimental and control group on knowledge (p = <0.05) and self-efficacy (p = <0.05), withthe experimental group faring better after one and two months post intervention; but nosignificant difference was noted on practice, one and two months post intervention (p = 0.56,0.43). The odds of the experimental group acquiring helminthiasis was 68% lower than thecontrol group but is not considered significant (OR = 0.32; p = 0.49). The program wassuccessful in reducing the re-infection of helminthiasis and is recommended that continuoushealth education on hygiene and sanitation must be considered in the home and school

    STAT1 activation in association with JAK2 exon 12 mutations

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    La inclusiĂłn de la perspectiva de gĂ©nero en la actividad jurisdiccional es una demanda sostenida de los colectivos feministas y de mujeres, dado que las sentencias tienen un poder performativo y envĂ­an un mensaje a la sociedad: “[
] tienen un poder individual y colectivo que impactan en la vida de las personas y conforman la identidad del poder judicial como un actor imprescindible en la construcciĂłn de un Estado democrĂĄtico de derecho” (Suprema Corte de Justicia de la NaciĂłn, 2013:7). La incorporaciĂłn de la perspectiva de gĂ©nero viene a garantizar la igualdad de posiciones (Kessler, 2014) entre mujeres y varones como una meta, trascendiendo la mera igualdad de oportunidades que hasta el presente se ha demostrado insuficiente para que las mujeres consigamos una ciudadanĂ­a plena. Al momento de incorporar la perspectiva de gĂ©nero en las sentencias, quienes juzgan deben tener presente en primer lugar, el impacto diferenciado de las normas en base al sexo de las personas. En segundo lugar, la interpretaciĂłn y aplicaciĂłn de las leyes en relaciĂłn con (y en base a) estereotipos de gĂ©nero. Si, por ejemplo, quienes imparten justicia no tienen presentes los estereotipos de gĂ©nero vigentes detrĂĄs de las violaciones a los derechos humanos de las mujeres, si no los detectan ni cuestionan, entonces los reproducen. Tal como sostiene Scott (1996) el gĂ©nero es una categorĂ­a imprescindible para el anĂĄlisis social. En tercer lugar, al momento del juzgamiento, se deben tener en cuenta las exclusiones legitimadas por la ley por pensar el mundo en tĂ©rminos binarios y androcĂ©ntricos; en cuarto lugar, la distribuciĂłn no equitativa de recursos y poder que opera entre varones y mujeres en el marco de una organizaciĂłn social patriarcal, y, por Ășltimo, el trato diferenciado por gĂ©nero legitimado por las propias leyes.Eje 3: Tramas violentas y espacios de exclusiĂłn.Instituto de Cultura JurĂ­dic

    Effect of growth factors on the expression of 6-phosphofructo-2- kinase/fructose-2,6-bisfosfatase in Rat-1 fibroblasts

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    The activation of glycolytic flux is a biochemical characteristic of growing cells. Several reports have demonstrated the role of fructose 2,6-bisphosphate in this process. In this paper we show that the levels of 6-phosphofructo-2-kinase/fructose-2, 6-bisphosphatase (6PF2K/Fru-2,6-P2ase) mRNA are modulated in response to serum and growth factors and this effect is due to regulation of its transcription rate. The modulation of the expression of this enzyme by growth factors differs according their mitogenic effect; both lysophosphatidic acid and epidermal growth factor, when added alone, increased the mRNA levels, but endothelin had no effect. Furthermore, cAMP, which acts as an antimitogenic signal in Rat-1 fibroblasts, produced a decrease in 6PF2K/Fru-2, 6-P2ase mRNA and inhibited the effects of lysophosphatidic acid and epidermal growth factor on 6PF2K/Fru-2,6-P2ase expression. PD 098059, a specific inhibitor of the activation of the mitogen-activated protein kinase, was able to prevent the effect of EGF on 6PF2K/Fru-2, 6-P2ase gene expression. These results imply that activation of mitogen-activated protein kinase is required for the stimulation of the transcription of 6PF2K/Fru-2,6-P2ase by EGF

    Real-world analysis of main clinical outcomes in patients with polycythemia vera treated with ruxolitinib or best available therapy after developing resistance/intolerance to hydroxyurea

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    Hemorrhage; Polycythemia vera; RuxolitinibHemorrĂ gia; PolicitĂšmia vera; RuxolitinibHemorragia; Policitemia vera; RuxolitinibBackground Ruxolitinib is approved for patients with polycythemia vera (PV) who are resistant/intolerant to hydroxyurea, but its impact on preventing thrombosis or disease-progression is unknown. Methods A retrospective, real-world analysis was performed on the outcomes of 377 patients with resistance/intolerance to hydroxyurea from the Spanish Registry of Polycythemia Vera according to subsequent treatment with ruxolitinib (n = 105) or the best available therapy (BAT; n = 272). Survival probabilities and rates of thrombosis, hemorrhage, acute myeloid leukemia, myelofibrosis, and second primary cancers were calculated according to treatment. To minimize biases in treatment allocation, all results were adjusted by a propensity score for receiving ruxolitinib or BAT. Results Patients receiving ruxolitinib had a significantly lower rate of arterial thrombosis than those on BAT (0.4% vs 2.3% per year; P = .03), and this persisted as a trend after adjustment for the propensity to have received the drug (incidence rate ratio, 0.18; 95% confidence interval, 0.02-1.3; P = .09). There were no significant differences in the rates of venous thrombosis (0.8% and 1.1% for ruxolitinib and BAT, respectively; P = .7) and major bleeding (0.8% and 0.9%, respectively; P = .9). Ruxolitinib exposure was not associated with a higher rate of second primary cancers, including all types of neoplasia, noncutaneous cancers, and nonmelanoma skin cancers. After a median follow-up of 3.5 years, there were no differences in survival or progression to acute leukemia or myelofibrosis between the 2 groups. Conclusions The results suggest that ruxolitinib treatment for PV patients with resistance/intolerance to hydroxyurea may reduce the incidence of arterial thrombosis.This work was supported by the Instituto de Salud Carlos III through a National Plan for Scientific and Technical Research and Innovation InnovaciĂłn (PI18/01472, PI18/00205, and PI21/00231). The Spanish Group of Myeloproliferative Neoplasms (GEMFIN) received a grant from Novartis for developing the Spanish Registry of Polycythemia Vera and for conducting the current project

    Lestaurtinib Inhibition of the JAK/STAT Signaling Pathway in Hodgkin Lymphoma Inhibits Proliferation and Induces Apoptosis

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    Standard cytotoxic chemotherapy for Hodgkin Lymphoma (HL) has changed little in 30 years; the treatment for patients with relapsed or refractory disease remains challenging and novel agents are under development. JAK/STAT constitutive activation plays an important role in the pathogenesis of HL. Lestaurtinib is an orally bioavailable multikinase inhibitor that has recently been shown to inhibit JAK2 in myeloproliferative disorders. The potential role of Lestaurtinib in HL therapy is unknown. We have analyzed the effect of Lestaurtinib treatment in five HL cell lines from refractory patients, L-428, L-1236, L-540, HDML-2 and HD-MY-Z. At 48 h, a dose-dependent cell growth inhibition (23%–66% at 300 nM) and apoptotic increment (10%–64% at 300 nM) were observed. Moreover, Lestaurtinib inhibited JAK2, STAT5 and STAT3 phosphorylation and reduced the mRNA expression of its downstream antiapoptotic target Bcl-xL. In addition, we have analyzed the effect of Lestaurtinib treatment in lymph nodes from four classic HL patients. We observed a decrease in cell viability at 24 hours of treatment in three patients (mean decrease of 27% at 300 nM). Our findings provide, for the first time, a molecular rationale for testing JAK2 inhibitors, specifically Lestaurtinib, in HL patients

    Historiographie

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    François Hartog, directeur d’études Historiographie ancienne et moderne Dans l’enquĂȘte menĂ©e sur les conditions de la temporalisation du temps, trois fils ont Ă©tĂ© suivis, combinant le trĂšs ancien et le trĂšs contemporain. Comment rĂ©pondre aux ruptures d’évidence, quand soudain le cours du temps vient Ă  s’interrompre ? Nous avons commencĂ© par interroger la notion mĂȘme de crise (krisis), entendue comme crise du temps et dans le temps. Introduite par la mĂ©decine hippocratique, la krisis est, en e..

    Comparative Analysis of TCR-gamma Gene Rearrangements by Genescan and Polyacrylamide Gel-electrophoresis in Cutaneous T-cell Lymphoma

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    Demonstrating T-cell clonality has become an important approach supporting a diagnosis of malignant T-cell neoplasms. A comparative study between Genescan analysis, polyacrylamide gel and agarose gel electrophoresis in visualizing X-cell receptor gamma gene rearrangement was performed on 25 biopsy specimens from 18 patients with different forms of cutaneous T-cell lymphomas. Clonality was detected in 17 biopsy specimens when PCR products were evaluated by Genescan analysis. Seventeen showed discrete bands when visualized in polyacrylamide gel and 14 cases were clonal when visualized with agarose gel. In five cases, a clonal population was seen in the gels, but not with Genescan. On sequencing the PCR products we demonstrated nonclonality of these five samples. Our results confirm that PCR-Genescan is a useful, reliable and specific screening method for detecting dominant clones in patients with T-cell lymphoma

    Study of Regulatory T-Cells in Patients with Gastric Malt Lymphoma: Influence on Treatment Response and Outcome

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    Purpose FOXP3+ regulatory T cells (Treg) play an essential role in modulating host responses to tumors and infections. The role of these cells in the pathogenesis of MALT lymphomas remains unknown. The aims of the study were to quantify the number of infiltrating FOXP3+ and CD3+ cells in patients with gastric MALT lymphoma at diagnosis and to study kinetics of these cells and CD20+ tumor cells after treatment and during long-term follow-up. Methods FOXP3+, CD3+ and CD20+ cells were analyzed by immunohistochemistry and the number of cells was quantified using a micrometric ocular. Samples of 35 patients with gastric MALT lymphoma at diagnosis and after treatment were included. Diagnostic samples were compared to 19 cases of chronic gastritis and diffuse large B-cell lymphoma (DLBCL) of the stomach. Results The median number of FOXP3+ infiltrating cells was higher (27 cells/cm2) in gastric MALT patients than in DLBCL (10 cells; p = 0.162) but similar to chronic gastritis (20 cells; p = 0.605). No characteristic or specific distribution pattern of infiltrating FOXP3+ cells was found. Gastric MALT lymphoma patients responding to bacterial eradication therapy had higher number of FOXP3+ cells at study entry. Kinetics of both infiltrating FOXP3+ cells and tumor CD20+ cells were strongly dependent on the treatment administered. Discussion Gastric MALT lymphomas have a number of Treg cells more similar to chronic gastritis than to DLBCL. Patients with higher number of tumor infiltrating FOXP3+ cells at study entry seem to have better response to antibiotics. Kinetics of Treg and tumor cells are influenced by type of treatmen

    Clinical Validation of the Vitro HPV Screening Assay for Its Use in Primary Cervical Cancer Screening

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    The advances in cervical cancer screening have mostly focused on high-risk human papillomavirus (HR HPV) detection as the primary screening tool in women over 30 years old. Although many new HPV assays have been commercialized during the last few years, only a few of them are validated according to international guidelines. Recently, new approaches for genotype-based risk-stratification and triage of HPV positive women have been developed. In this study, the Vitro HPV Screening assay targeting 14 oncogenic genotypes (HPV16, HPV18, and another 12 HR HPV genotypes) has demonstrated an appropriate clinical performance to be used as primary screening test. Additionally, the 12 HR HPV genotypes have been individually genotyped with a complementary assay performed by reverse dot blot hybridization of the PCR product from the HPV Screening assay. In conclusion, this n ew assay represents a unique integrated solution for cervical cancer screening with the extended HPV genotyping as a clinical tool for risk determination. Many scientific societies have issued guidelines to introduce population-based cervical cancer screening with HPV testing. The Vitro HPV Screening assay is a fully automatic multiplex real-time PCR test targeting the L1 GP5+/GP6+ region of HPV genome. The assay detects 14 high risk (HR) HPV genotypes, identifying individual HPV16 and HPV18 genotypes, and the HPV-positive samples for the other 12 HR HPV types are subsequently genotyped with the HPV Direct Flow Chip test. Following international guidelines, the aim of this study was to validate the clinical accuracy of the Vitro HPV Screening test on ThinPrep-collected samples for its use as primary cervical cancer screening, using as comparator the validated cobas (R) 4800 HPV test. The non-inferiority analysis showed that the clinical sensitivity and specificity of the Vitro HPV Screening assay for a diagnosis of cervical intraepithelial neoplasia of grade 2 or worse (CIN2+) were not inferior to those of cobas (R) 4800 HPV (p = 0.0049 and p < 0.001 respectively). The assay has demonstrated a high intra- and inter-laboratory reproducibility, also among the individual genotypes. The Vitro HPV Screening assay is valid for cervical cancer screening and it provides genotyping information on HPV-positive samples without further sample processing in a fully automated workflow

    Blood test for the identification and location of different types of cancer

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    Biopsia lĂ­quida; CĂĄncer; Prueba sanguĂ­neaBiĂČpsia lĂ­quida; CĂ ncer; Prova sanguĂ­niaLiquid biopsy; Cancer; Blood testLa biopsia lĂ­quida es un procedimiento mĂ­nimamente invasivo donde a partir de muestras de diferentes fluidos corporales se pueden aislar componentes celulares como las cĂ©lulas tumorales circulantes, entre otras. Como muestras se pueden utilizar diferentes fluidos biolĂłgicos como plasma, orina y saliva, entre muchos otros
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