A lithogenic diet reduced the expressions of FABP6 in both male

and female C57L mice, SLC10A2 in female C57L mice, and ABCC3 in male C57L mice. These alterations in transporter expressions were not associated with changes in taurocholate uptake. The lithogenic diet induced biliary hyperplasia and reduced bile salt transporter expressions in C57L mice.\n\nConclusions: Although bile salt uptake was not increased in the bile duct unit, we speculate that the biliary hyperplasia on the lithogenic diet may lead to an increase in intrahepatic https://www.selleckchem.com/products/Adriamycin.html bile salt recycling during cholesterol cholelithogenesis.”
“The herpes simplex virus type I (HSV-1) UL4 protein is a late protein encoded by the UL4 gene. To date, the function of this protein is poorly understood. To aid further investigation of the function of this protein, the UL4 gene was cloned into

the vector pET28a (+) to express His-tagged UL4 protein in Escherichia coli. The recombinant fusion protein was purified from inclusion body by histidine selected nickel affinity chromatography under denaturing conditions. After refolding, the purified recombinant protein was used to produce anti-UL4 polyclonal Bromosporine cell line antibody. Western blot analysis demonstrated that the polyclonal sera could recognize the purified UL4 protein specifically, and in the immunofluorescence assay, the antibody was able to probe the UL4 protein with a punctate staining in HSV-1 infected cells. (C) 2009 Elsevier B.V. All rights reserved.”
“The fibroblast growth factor receptor (FGFR) cascade plays crucial roles in tumor cell proliferation, angiogenesis, migration and survival. Accumulating evidence suggests that in some tumor types, FGFRs are bona fide oncogenes to which cancer cells are addicted. Because FGFR inhibition can reduce proliferation and induce cell death in a variety of in vitro and in vivo tumor models harboring FGFR aberrations, a growing number of research groups have selected FGFRs as targets for anticancer drug development. Multikinase FGFR/vascular

endothelial growth factor receptor (VEGFR) inhibitors have shown promising activity in breast cancer patients with FGFR1 and/or FGF3 amplification. Early clinical trials with selective FGFR inhibitors, which may overcome the toxicity constraints raised by multitarget kinase inhibition, are DZNeP chemical structure recruiting patients with known FGFR(1-4) status based on genomic screens. Preliminary signs of antitumor activity have been demonstrated in some tumor types, including squamous cell lung carcinomas. Rational combination of targeted therapies is expected to further increase the efficacy of selective FGFR inhibitors. Herein, we discuss unsolved questions in the clinical development of these agents and suggest guidelines for management of hyperphosphatemia, a class-specific mechanism-based toxicity. In addition, we propose standardized definitions for FGFR1 and FGFR2 gene amplification based on in situ hybridization methods.

The derivatives, also known as bandwidths, were analysed to determine the level of acceptability for the beam matching test described in this study. Results: see more The open and wedged beam profiles and depth-dose curve in the build-up region were determined to match within 1% dose error and 1-mm SE at 71.4% and 70.8% for of all points, respectively. For the depth-dose analysis specifically,

beam matching was achieved for 96.8% of all points at 1%/1mm beyond the depth of maximum dose. Conclusion: To quantify the beam matching procedure in any clinic, the user needs to merely generate test packages from their reference linear accelerator. It then follows that if the bandwidths are smooth and continuous across the profile and depth, there is greater likelihood of beam matching. Differentiated spatial and percentage variation analysis is appropriate, Selleckchem 17DMAG ideal and accurate

for this commissioning process. Advances in knowledge: We report a mathematically rigorous formulation for the qualitative evaluation of beam matching between linear accelerators.”
“To investigate the immunoregulatory effects of interferon (IFN)- on CD4+ T cells, we examined the response of CD4+ T cells from IFN-(+/+) and IFN-(-/-) mice to CD3/CD28 activation and to differentiation to Th17 lineage, analyzing the expression of signaling effectors, cell surface receptors, production of IL-17, and gene expression profiles. We provide evidence of increased

phosphorylation of the membrane proximal kinase associated with TCR activation, ZAP-70, in IFN-(-/-) T cells compared with IFN-(+/+) T cells. Anti-CD3/anti-CD28 antibody stimulation of whole splenocytes or CD4+ T cells from IFN-(-/-) Sapanisertib PI3K/Akt/mTOR inhibitor mice results in secretion of IL-17A, in contrast to identical stimulation of cells from IFN-(+/+) mice, which fails to increase IL-17A production. After CD3/CD28 activation, IFN-(-/-) CD4+ T cells express higher levels of IRF-4, required for Th17 differentiation, and increased expression of CCR6, IL-23R, IL-6R, and CXCR4, compared with activated IFN-(+/+) T cells. Notably, cell surface expression of IL-6R and IL-23R is significantly higher in the IFN-(-/-) CD4+ T cells, with an increased number of double-positive CCR6+IL-23R+ and IL-6R+IL-23R+ CD4+ T cells. On polarization to Th17 lineage, CD4+ T cells from IFN-(-/-) mice exhibit a more Th17-primed transcriptome compared with CD4+ T cells from IFN-(+/+) mice. Indeed, when CD4+ T cells from IFN-(+/+) mice are polarized to Th17 lineage in the presence of IFN-, many Th17-associated genes are down-regulated.

\n\nOne hundred and ten Chinese patients

with newly diagnosed obstructive sleep apnea syndrome were enrolled in this study. They were randomly assigned into stage-matched care (SMC) and standard care (SC) groups (55 patients in each group). Patients in the SMC group received stage-matched intervention at different DNA Damage inhibitor stages of behavior changes, and the SC group received only routine care. The intervention was based on the health action process approach theory and included risk perception, outcome expectancy, and self-efficacy. Questionnaires included the Self-Efficacy Measure for Sleep Apnea, the Epworth Sleepiness Scale (ESS), and the Pittsburgh Sleep Quality Index (PSQI). Data were collected at baseline and 1 and 3 months after home CPAP treatment, and hours of CPAP usage was also recorded at 1 and 3 months of follow-up.\n\nAt 1 month, CPAP usage was 5.59 +/- 0.56 h/night (mean +/- SD) vs 5.28 +/- 0.67 h/night in the SMC and SC groups, respectively (p = 0.016). At 3 months, CPAP usage was 5.65 +/- 0.50 vs 5.26 +/- 0.82 h/night in the SMC and SC groups, respectively (p = 0.006). Repeated ANOVA analysis demonstrated that risk perception, outcome expectancy, and self-efficacy in the

SMC group were significantly higher than those of the SC group (p < 0.05). Moreover, the time x group interaction was significant for outcome expectancy and self-efficacy, indicating that the groups differed significantly in changes in outcome expectancy and self-efficacy over the three time MG-132 ic50 points. There was a significant selleckchem difference between the SMC and SC groups in terms of improvement in ESS (p < 0.001) and PSQI (p = 0.013) after 3 months of CPAP treatment.\n\nStage-matched intervention could not only facilitate intention formation and enhance treatment self-efficacy but significantly improve CPAP adherence in OSA patients for the 3-month treatment.”
“Objective. to investigate the factors associated with postprandial

glucose excursions in patients with type 2 diabetes.\n\nResearch Design and Methods. A complete medical history and physical examination were assessed in 118 consecutive patients with type 2 diabetes attending the Diabetes Outpatient Clinic, Cluj-Napoca. Blood samples were collected in fasting state, and HbAlc and lipid profile were assessed. A six points blood glucose profile measured by patients at home was performed. To determine variables associated with higher postprandial glycermic levels, factor analysis followed by linear regression model was performed.\n\nResults. The Study group had a median age of 59.2 years, 43.4% were females. The median duration of diabetes was 5 years. By factor analysis we have extracted 4 factors that explained 75.

This review discusses the efficacy of the AIs in improving DDFS in the different adjuvant settings and explores whether significant improvements in DDFS correlate with meaningful improvements in OS or breast cancer-associated mortality. Significant DDFS improvement may be a click here quicker, better end point in clinical trials, leading to a more efficient, faster assessment of treatment efficacy.”
“Two strains of Arcobacter butzleri, ATCC 49616 and an

environmental isolate, became nonculturable in seawater microcosms at 4 C by 20 days and at room temperature by 14 days. Nonculturable cells were viable for up to 270 days of incubation in microcosms. Resuscitation of A. butzleri cells from microcosms at both temperatures was achieved 9 days after nutrient addition.”
“For the efficient stimulation of T cells by tumor Ag, tumor-derived material has to be presented by dendritic cells (DC). This very likely involves the uptake of dead tumor cells by DC. Cell death in tumors often occurs through

apoptosis, but necrotic cell death may also be prevalent. This distinction is relevant because numerous studies have proposed that apoptotic cells have immunosuppressive effects while necrosis may be stimulatory. However, a system has been lacking that would allow the induction of apoptosis or necrosis without side effects by the death stimuli used experimentally. In this study, we present such a system

and test its effects on immune cells in vitro. B16 mouse melanoma cells Dorsomorphin were generated and underwent cell death through the doxycycline-inducible induction of death proteins. In one cell line, the induction of Bim(S), induced rapid apoptosis, in the other line the induction of the FADD death domain induced nonapoptotic/necrotic cell death. Bim(S)-induced apoptosis was associated with the typical morphological and biochemical changes. FADD death domain induced necrosis occurred through a distinct pathway involving RIP1 and the loss of membrane integrity in the absence of apoptotic changes. Apoptotic and necrotic cells were taken up with comparable efficiency by DC. OVA expressed in cells dying by either apoptosis or necrosis was cross-presented to OT-1 T cells and induced their PD173074 order proliferation. These results argue that it is not the form of cell death but its circumstances that decide the question whether cell death leads to a productive T cell response. The Journal of Immunology, 2009, 182: 4538-4546.”
“Objectives: We investigated the outcomes of reinforcing anastomotic sites using (1) non biodegradable polytetrafluoroethylene (PTFE) felt, (2) biodegradable polyglycolic acid (PGA) felt, and (3) PGA felt with basic fibroblast growth factor (bFGF) in a canine descending thoracic aortic replacement model.

The UV-Vis-NIR transmission spectrum was recorded to apprehend the suitability of the single crystal of the title salt for various optical and NLO applications. The S63845 molecular weight TG/DTA thermal analysis was performed to establish the thermal stability of the crystal. The SHG activity in the grown crystal was identified employing the modified Kurtz-Perry powder test. The electronic charge distribution and reactivity of the molecules within the title complex was studied by HOMO and LUMO analysis and the molecular electrostatic

potential (MEP) of the title crystal was performed using the B3LYP method. (C) 2014 Elsevier B.V. All rights reserved.”
“Aims: HSP60 plays a protective role against heat, oxidative injury and ultraviolet. Recently, animal and clinical

studies have suggested that HSP60 plays a role in various diseases. However, few epidemiological studies have demonstrated an association selleck chemicals between HSP60 levels and type 2 diabetes mellitus. Therefore, an epidemiological study was conducted to examine the association of HSP60 with type 2 diabetes mellitus.\n\nMethods: This study included 83 type 2 diabetes mellitus patients and 161 controls that were recruited from male employees who received annual health check-ups between 2005 and 2007. The serum HSP60 levels were measured using the ELISA method.\n\nResults: Because the HSP60 levels were not detectable (<3.125 ng/mL) in 48.0% of the study subjects, HSP60 levels were divided into two categories (detectable or undetectable). A logistic regression analysis showed that the subjects in the undetectable had a 2.03 times higher risk of diabetes mellitus than those in the detectable after adjustment for age, BMI and rate of hypertension medication.\n\nConclusions:

This study was the first epidemiological study to demonstrate click here an association between type 2 diabetes mellitus and HSP60, thus suggesting that HSP60 may play an important role in the type 2 diabetes mellitus pathology. (C) 2009 Elsevier Ireland Ltd. All rights reserved.”
“Purpose: Epidemiologic studies have shown that the incidence of epilepsy is the highest in the elderly population. Because the elderly constitutes the most rapidly growing population, epilepsy in this group is an important health issue worldwide. To identify the characteristics of epilepsy in the elderly, we reviewed our experience at a tertiary referral center in Japan.\n\nMethods: We searched all electronic medical records of the past 6 years at the epilepsy clinic of the hospital affiliated to our University-affiliated hospital. We defined an elderly person as an individual aged 65 years and above. All patients underwent history and physical examinations, 3 T magnetic resonance imaging and/or computer tomography, and electroencephalogram (EEG). The diagnosis of epilepsy, age of onset, etiology, and antiepileptic medication were recorded.\n\nResults: We identified 70 patients who developed epilepsy after the age of 65 years.

The aim of this study was to investigate the relationship between leptin and the lipoprotein profile in non-dialyzed patients with chronic kidney disease (CKD). Material and methods. Leptin and lipid and lipoprotein concentrations were studied in 73 CKD patients and in 68 healthy controls in a cross-sectional case-control design. Results. The mean leptin levels were increased in the CKD patients (24.0 (SD 37.1) ng/mL) compared to those in controls (9.0 (SD 8.5) ng/mL) (p=0.008). Also, the ratio between leptin levels and body mass index

(leptin/BMI) was increased in CKD patients (mean 0.80 (SD 1.03)) compared to that in controls (0.31 (SD 0.24)) (p=0.001). In linear regression analysis, leptin independently predicted total cholesterol and triglycerides in CKD patients (p=0.010 and p=0.001, respectively) and ratio between total and MK-0518 Microbiology inhibitor HDL cholesterol (Chol/HDL) in controls (p=0.024). Furthermore, Etomoxir mw in CKD patients, the leptin/BMI predicted the variation in total cholesterol and triglycerides

(p=0.010 and p=0.002, respectively). Conclusions. Leptin concentrations and leptin/BMI were elevated in CKD patients compared to those in controls. Leptin levels in both study groups, and leptin/BMI in the CKD group, were associated with atherogenic lipid profiles, which may contribute to the elevated cardiovascular risk that has been linked to hyperleptinaemia.”
“Autophagy is a self-degradative process in which cellular material is enclosed within autophagosomes and trafficked to lysosomes for degradation. Autophagosomal biogenesis is well described; however mechanisms controlling the growth and ultimate size of autophagosomes are unclear. Here we demonstrate that the Drosophila membrane protein Ema is required for the growth of autophagosomes. In an ema mutant, autophagosomes form in response to starvation and developmental cues,

and these autophagosomes can mature into autolysosomes; however the autophagosomes are very small, and autophagy is impaired. In fat body cells, Ema localizes to the Golgi complex and is recruited to the membrane of autophagosomes in response to starvation. The Drosophila Golgi protein Lva also is recruited to the periphery of autophagosomes in response to starvation, TNF-alpha inhibitor and this recruitment requires ema. Therefore, we propose that Golgi is a membrane source for autophagosomal growth and that Ema facilitates this process. Clec16A, the human ortholog of Ema, is a candidate autoimmune susceptibility locus. Expression of Clec16A can rescue the autophagosome size defect in the ema mutant, suggesting that regulation of autophagosome morphogenesis may be a fundamental function of this gene family.”
“A number of series of poly(acrylic acids) (PAA) of differing end-groups and molecular weights prepared using atom transfer radical polymerization were used as inhibitors for the crystallization of calcium oxalate at 23 and 80 degrees C.

001). However, TH increased phase singularity number (wavebreaks) during VF (P<0.05) and Si pacing (P<0.05). TH resulted in earlier onset of APD alternans (P<0.001), which was predominantly SDA (P<0.05), and increased pacing-induced VF episodes (P<0.05). TH also decreased CV, shortened wavelength, and enhanced APD dispersion and the spatial heterogeneity of CV restitution.\n\nConclusions: TH (30 degrees C) increased the vulnerability of pacing-induced VF by (1) facilitating wavebreaks during VF and Si pacing, and (2) enhancing proarrhythmic electrophysiological parameters, including promoting

earlier onset of APD alternans (predominantly SDA) during EVP4593 cost S1 pacing. (Circ J 2009; 73: 2214-2222)”
“Brain metastasis has become an increasing cause of

morbidity GDC-0994 and mortality in cancer patients as the treatment of systemic disease has improved. Brain metastases frequently are highly vascularized, a process driven primarily by VEGF. VEGF mediates numerous changes within the vasculature including endothelial cell retraction and increased permeability, vasodilation, and new vessel formation. Here we describe a xenograft brain metastasis model that mimics the critical steps of metastasis including tumor cell dissemination and vascular adhesion, tumor growth and tumor associated angiogenesis. Magnetic resonance (MR) imaging was used to evaluate two aspects of the functional response of brain metastasis to the anti-VEGF receptor therapeutic, AZD2171 (Cediranib, RECENTIN (TM)). MR tracking of individual cells demonstrated that cediranib did not impede tumor

cell extravasation into the brain parenchyma despite evidence that anti-VEGF treatment decreases the permeability of the blood brain barrier. In a second assay, blood volume imaging using ultrasmall superparamagnetic iron oxide revealed that treatment of well-developed brain metastasis with cediranib for 7 days led to a heterogeneous response with respect to individual tumors. Overall, there was a significant average decrease in the tumor vascular bed volume. The majority of large tumors demonstrated substantially reduced central blood volumes relative to normal brain while retaining a rim of elevated blood volume at P5091 the tumor brain interface. Small tumors or occasional large tumors displayed a static response. Models and assays such as those described here will be important for designing mechanism-based approaches to the use of anti-angiogenesis therapies for the treatment of brain metastasis.”
“Objective: We describe the short-term results of the patients who underwent transapical treatment of a paravalvular leak (PVL) in our centre. Background: Increasing experience with transapical aortic valve implantation has inspired us to explore this approach for prosthetic paravalvular leak reduction in high risk patients.

Peer-reviewed articles and agency websites were the sources of information The article focuses on the treatment of hereditary blood disorders including hemophilia and thalassemia, Selleckchem PF-03084014 and hereditary bone marrow failure A coordinated approach to addressing blood safety and continued development of sensitive diagnostic testing arc necessary to reduce risk in an increasingly globalized society (Am J Prey Med 2010,38(4S) S468-S474) Published by Elsevier Inc on behalf

of American Journal of Preventive Medicine”
“Symptomatic lunate collapse owing to Kienbock disease is difficult to treat. To define the potential role of scaphocapitate arthrodesis, we reviewed ten patients who underwent scaphocapitate arthrodesis for stage IIIB-IV Kienbock disease at a mean follow-up of 8.75 years (range 1.3-18.6). Clinical variables included ranges of motion, grip strength, pain, return to work, and QuickDASH (disabilities of the arm, shoulder and hand) scores. Radiographs were evaluated for union, carpal height, alignment, ulnar translation, and radiocarpal arthritis. The procedure resulted in functional ranges of motion Selleckchem Bafilomycin A1 and good grip strengths. Pain was substantially reduced. The mean QuickDASH score was 27 (range 9.1-56.3). Radiographic analysis showed union in nine patients, maintenance of carpal height with a corrected radioscaphoid angle, and no evidence of ulnar translation. The long-term clinical benefits of scaphocapitate arthrodesis for treatment of collapsed

Kienbock disease are demonstrated. However, radiographic signs of radioscaphoid arthritis were often observed in patients with follow-up greater than 10 years.”
“A semi-analytical method is introduced to study kink instability in cylindrical

plasma with line-tied boundary conditions. The method is based on an expansion for magnetohydrodynamics (MHD) equations in one-dimensional (1D) radial eigenvalue problems by using Fourier transforms. The MHD equations then become an ordinary differential equation. This method is applicable to both ideal and non-ideal CAL-101 order MHD problem. The effect of plasma pressure (P(0)) on kink instability is studied in a cylindrical geometry. Complex discrete spectra are presented. Two-dimensional (2D) eigenfunctions with the line-tied boundary conditions are obtained. The growth rate and radial eigenfunctions are different in the two cases of P(0) = 0 and P(0) not equal 0, which indicate that the effect of plasma pressure can not be ignored if it is large enough. This method allows us to understand the role of individual radial eigenfunctions, and is also computationally efficient compared to direct solutions of the MHD equations by the finite difference method.”
“Epidemiological studies suggest whole grain consumption is associated with decreased colon cancer risk. However, wheat classes differ in their usage, making the influence of wheat class (red vs. white) and state of refinement (whole vs. refined) difficult to separate, leading to potential confounding.

Odontogenic epithelial rests were present in 2 cases. No cases demonstrated cytoplasmic hyaline globules. The lesional cells in all cases were negative for S-100 protein, CD68, CD34, CD31, keratins, desmin, calponin, and smooth muscle actin. Perivenular pericytes were positive for smooth muscle

actin. Congenital epulis of the newborn is a rare oral entity with characteristic clinicopathologic features. It predominately affects girls, mainly on the maxillary alveolar ridge. It may be separated from “granular cell Ispinesib molecular weight tumor” by location, patient age, absence of cytoplasmic hyaline globules, solid growth pattern, pericytic proliferation, attenuated overlying epithelium, and negativity for S-100 protein. (C) 2011 Elsevier Etomoxir Metabolism inhibitor Inc. All rights reserved.”
“Background. A 49-year-old white man presented to his primary-care clinic with fatigue and poor concentration. He had an enlarged liver with a minimally tender edge and was subsequently referred to our

liver clinic.\n\nInvestigations. Physical examination, laboratory investigations (including tests for HCV-RNA, antibodies to hepatitis B surface and core antigens, and HBV-DNA), and liver biopsy.\n\nDiagnosis. The patient had chronic hepatitis c infection and was a slow responder to treatment.\n\nManagement. Administration of pegylated interferon alpha 2b plus ribavirin for 72 weeks. Escitalopram was given to manage his depression.”
“We synthesized a Yb(III)-incorporated microporous polymer (Yb-ADA) and studied its gas adsorption property and catalytic activity. The adamantane-based porous polymer (ADA) was obtained from an ethynyl-functionalized adamantane derivative and 2,5-dibromoterephthalic acid through Sonogashira-Hagihara cross-coupling. ADA had two carboxyl groups which

were used for Yb(III) coordination under basic conditions. The Brunauer-Emmett-Teller find more (BET) surface area of ADA was 970 m(2) g(-1). As Yb(III) ions were incorporated into ADA, the surface area of the polymer (Yb-ADA) was reduced to 885 m(2) g(-1). However, Yb-ADA exhibited a significantly enhanced CO2 adsorption capacity despite the reduction of surface area. The CO2 uptakes of ADA and Yb-ADA were 1.56 and 2.36 mmol g(-1) at 298 K, respectively. The H-2 uptake of ADA also increased after coordination with Yb(III) from 1.15 to 1.40 wt % at 77 K. Yb-ADA showed high catalytic activity in the acetalization of 4-bromobenzaldehyde and furfural with trimethyl orthoformate and could be reused after recovery without severe loss of activity. (c) 2013 Wiley Periodicals, Inc.”
“This study evaluated a 24-hour resuscitation protocol, established a formula to quantify resuscitation volume for the second 24 hours, described the relationship between the first and second 24 hours, and identified which patients required high volumes. A protocol for patients with burn >15% TBSA was implemented in 2009. Initial fluid was based on the Parkland calculation and adjusted to meet a goal urine output.

“
“Purpose: The objective

of this study was to prospectively verify if diffusion-weighted magnetic resonance (DwMR)-related parameters such as perfusion fraction (f) and slow diffusion coefficient (D), according to Le Bihan theory, are more effective than apparent diffusion coefficient (ADC) for classification and characterization of the more frequent focal liver lesions (FLLs) in noncirrhotic liver. Methods: Sixty-seven patients underwent standard liver magnetic resonance imaging (MRI) and free-breath multi-b DwMR study. Two regions of interest SBE-β-CD nmr were defined by 2 observers, including 1 FLL for each patient (21 hemangiomas, 21 focal nodular hyperplasias, 25 metastases) and part of surrounding parenchyma, respectively. For every FLL, D, f, and ADC were estimated both as absolute value and as ratio between FLL and surrounding

parenchyma LBH589 datasheet by fitting the reduced equation of the bicompartmental model to experimental data; t test, analysis of variance, and receiver operating characteristic analysis were performed. Results: t Test showed significant differences in ADC(lesion), f(lesion), D-lesion, ADC(ratio), and D-ratio values between benign and malignant FLLs, more pronounced for ADC(lesion) (P smaller than 0.0009) and ADC(ratio) (P = 0.001). Applying cutoff values of 1.55 x 10(-3) mm(2)/s (ADC(lesion)) and 0.89 (ADC(ratio)), the DwMR study presented sensitivities and specificities, respectively, of 84% and 80% (for https://www.selleckchem.com/products/as1842856.html ADC(lesion)), 72% and 80% (ADC(ratio)). Conclusions: Apparent diffusion coefficient (by fitting procedures) better performs than do D and f in FLL classification, especially when its values are less than 1.30 or greater than 2.00 x 10(-3) mm(2)/s.”
“This work aimed to compare the predictive

capacity of empirical models, based on the uniform design utilization combined to artificial neural networks with respect to classical factorial designs in bioprocess, using as example the rabies virus replication in BHK-21 cells. The viral infection process parameters under study were temperature (34 degrees C, 37 degrees C), multiplicity of infection (0.04, 0.07, 0.1), times of infection, and harvest (24, 48, 72 hours) and the monitored output parameter was viral production. A multilevel factorial experimental design was performed for the study of this system. Fractions of this experimental approach (18, 24, 30, 36 and 42 runs), defined according uniform designs, were used as alternative for modelling through artificial neural network and thereafter an output variable optimization was carried out by means of genetic algorithm methodology. Model prediction capacities for all uniform design approaches under study were better than that found for classical factorial design approach.