Search results for "blas"
showing 10 items of 2217 documents
Enteroparasitosis asociadas a trastornos intestinales crónicos
2021
Las enteroparasitosis afectan a la estructura y ambiente intestinal generando sintomatología en pacientes susceptibles. Éstas podrían llegar a desencadenar, agravar o confundirse con Trastornos Gastrointestinales Crónicos (TGC), cada vez más frecuentes en la población. En el presente estudio, se analiza la prevalencia de parásitos intestinales en 295 pacientes con TGC y/o sintomatología mediante la combinación de métodos diagnósticos. Giardia intestinalis fue el parásito más prevalente (61,7%), seguido de Blastocystis sp. (13,2%), con una prevalencia de parasitación general del 67%. El análisis molecular halló los genotipos A (96%) y B (4%) de G. intestinalis, y cinco subtipos de Blastocyst…
Gēnu ekspresija glioblastomas pacientiem ar atšķirīgu dzīvildzi
2015
Glioblastomu raksturošana molekulārā līmenī ar gēnu ekspresijas mikročipiem ir aktuāla metode mūsdienās, lai identificētu jaunus pretvēža terapijas mērķus. Darba mērķis bija salīdzināt divas pacientu grupas ar atšķirīgu dzīvildzi un noteikt atšķirīgi ekspresētos gēnus. Gēnu ekspresijas analīzi veica ar mikročipu tehnoloģiju, salīdzinot divas grupas. Negatīvā grupā sastāvēja no 13 pacientiem, kam dzīvildze bija īsāka par 6 mēnešiem, un pozitīvā - 15 pacienti ar dzīvildzi virs 6 mēnešiem. Glioblastomu RNS tika izdalīts no formalīnā fiksētiem, parafīnā guldītiem audiem. Iegūtos datus apstrādāja, izmantojot statistiskās analīzes metodes. Rezultātā noteica 30 dažādi ekspresēti gēni, no kuriem iz…
Maidon proteiinifraktioiden vaikutus ihmisen luuydinperäisten mesenkymaalisten kantasolujen kuntoon ja luusoluerilaistumiseen
2012
On yleisesti tiedossa, että maito on terveellistä ja parantaa luun kestävyyttä. Tutkimusten perusteella osa maidon proteiineista lisää luuta muodostavien osteoblastien määrää ja ehkäisee luun haurastumista estämällä esiosteoklastien erilaistumista luuta hajottaviksi osteoklasteiksi. Osteoblastit erilaistuvat multipotenteista mesenkymaalisista kantasoluista. Tällöin maidon proteiineilla saattaa olla fysiologinen rooli luun kasvamisessa ja paranemisessa. Maidon proteiineilla voi olla myös terapeuttinen vaikutus osteoporoosin anabolisena tekijänä. Tutkimus oli osa Valion ja Turun yliopiston yhteistyöprojektia. Tutkimuksen tarkoituksena oli testata maidon seitsemän proteiinifraktion vaikutuksia…
Molecular Pathways Implicated in Radioresistance of Glioblastoma Multiforme: What Is the Role of Extracellular Vesicles?
2023
Glioblastoma multiforme (GBM) is a primary brain tumor that is very aggressive, resistant to treatment, and characterized by a high degree of anaplasia and proliferation. Routine treatment includes ablative surgery, chemotherapy, and radiotherapy. However, GMB rapidly relapses and develops radioresistance. Here, we briefly review the mechanisms underpinning radioresistance and discuss research to stop it and install anti-tumor defenses. Factors that participate in radioresistance are varied and include stem cells, tumor heterogeneity, tumor microenvironment, hypoxia, metabolic reprogramming, the chaperone system, non-coding RNAs, DNA repair, and extracellular vesicles (EVs). We direct our a…
Basking in Reflected Glory and Blasting : Differences in identity management strategies between two groups of highly identified soccer fans
2007
This study examines in soccer fanzine two identity management strategies - BIRGing and blasting -- of two groups of highly identified soccer fans with allegiance to the same team. Results showed strong support for the BIRG phenomenon among both ultra fans groups but little evidence of the blasting phenomenon among either group. The implications of these findings are discussed in regards to social identity management among sport fans.
The effect of nanoparticle size and NLS density on nuclear targeting in cancer and normal cells; impaired nuclear import and aberrant nanoparticle in…
2017
The cell nucleus is an interesting target in many diseases with particular interest in cancer. Previously, nuclear targeted small and large chitosan nanoparticles (S-NPs≈25nm, and L-NPs≈150nm respectively), modified with low, intermediate and high densities of NLS (L-NLS, I-NLS and H-NLS) were developed and assessed in L929 fibroblasts. However, to evade apoptosis and stimulate tumor growth cancer cells are capable of manipulating the nuclear-cytoplasmic transport on many levels, making NPs that are capable of nuclear targeting in normal cells incapable of doing so in cancer. For such reason, here, the nuclear delivery efficiency of S-NPs and L-NPs was assessed as a function of their NLS de…
Stromal Interaction Molecule 1 (STIM1) Is Involved in the Regulation of Mitochondrial Shape and Bioenergetics and Plays a Role in Oxidative Stress
2012
Calcium ions are involved in a plethora of cellular functions including cell death and mitochondrial energy metabolism. Store-operated Ca(2+) entry over the plasma membrane is activated by depletion of intracellular Ca(2+) stores and is mediated by the sensor STIM1 and the channel ORAI1. We compared cell death susceptibility to oxidative stress in STIM1 knock-out and ORAI1 knockdown mouse embryonic fibroblasts and in knock-out cells with reconstituted wild type and dominant active STIM1. We show that STIM1 and ORAI1 deficiency renders cells more susceptible to oxidative stress, which can be rescued by STIM1 and ORAI1 overexpression. STIM1 knock-out mitochondria are tubular, have a higher Ca…
Cisplatin plus weekly vinorelbine versus cisplatin plus vinorelbine on days 1 and 8 in advanced non-small cell lung cancer: a prospective randomized …
2008
Summary Purpose A phase III randomized trial was carried out to compare two schedules of the vinorelbine (VNR)–cisplatin (CDDP) regimen in patients with locally advanced unresectable poor prognosis stage IIIB or metastatic stage IV non-small cell lung cancer. The primary endpoints were overall survival (OS) and analysis of toxicity, while secondary endpoints included response rates, time-to-progression (TTP) and quality of life (QoL). Patients and methods Eligible patients were randomized to receive: (a) VNR 25 mg/m 2 on day 1, 8 and 15 plus CDDP 100 mg/m 2 on day 1 every 4 weeks or (b) VNR 30 mg/m 2 on day 1 and 8 plus CDDP 80 mg/m 2 on day 1 every 3 weeks. All patients were chemotherapy-n…
Boundary value problem with integral condition for a Blasius type equation
2016
The steady motion in the boundary layer along a thin flat plate, which is immersed at zero incidence in a uniform stream with constant velocity, can be described in terms of the solution of the differential equation x'''= -xx'', which satisfies the boundary conditions x(0) = x'(0) = 0, x'(∞) = 1. The author investigates the generalized boundary value problem consisting of the nonlinear third-order differential equation x''' = -trx|x|q-1x'' subject to the integral boundary conditions x(0) = x'(0) = 0, x'(∞) = λ∫0ξx(s) ds, where 0 0 is a parameter. Results on the existence and uniqueness of solutions to boundary value problem are established. An illustrative example is provided.
Evaluación y programas de intervención psicoeducativa en niños con tumores en el cerebelo
2003
Se describen las secuelas neurológicas en niños diagnosticados de un tumor en el cerebelo y se ofrecen los resultados de la evaluación de 39 niños, con tumor en el cerebelo, tratados en la Unidad de Oncología Pediátrica del Hospital Infantil “La Fe” de Valencia. Asimismo, se compara la evaluación de secuelas de dos niños de educación infantil afectados de un tumor en el cerebelo: Yolanda (meduloblastoma, PNET) y Santiago (astrocitoma cerebeloso), y se describen las áreas en las que es aconsejable realizar un programa de intervención psicoeducativa.