Search results for "nevi"
showing 10 items of 92 documents
Latviešu valodas apguves iespējas lingvistiski neviendabīgā vidē pirmsskolā
2022
Darba autors: Liene Pustovaja Darba nosaukums: Latviešu valodas apguves iespējas lingvistiski neviendabīgā vidē pirmsskolā Pētījuma mērķis: pētīt 4-5 gadus vecu bērnu valodas attīstību muzikālajā darbībā. Darba tēmas aktualitāti nosaka gan nesenā pāreja uz jaunu, kompetencēs balstītu pirmsskolas mācību programmu, gan kopējā izglītības sistēmas pāreja uz mācībām valsts valodā, gan pēdējie pasaules politiskie notikumu, kuru iespaidā, piespiedu kārtā mainās daudzu bērnu dzīves vieta. Pirmajā darba daļā tiek pētīta un analizēta dažādu Latvijas un pasaules autoru ( Ž. Piažē, Ļ. Vigotska, G. Svences, A. Līdumas, B. Brices, u.c.) teorētiskā literatūra. Zinātnieku atziņu apkopošana un analizēšana ļ…
In vitro assessment of competitive and time-dependent inhibition of the nevirapine metabolism by nortriptyline in rats
2018
Abstract Nevirapine (NVP) is a non-nucleoside reverse transcriptase inhibitor of human immunodeficiency virus type 1 (HIV-1) widely used as a component of High Active Antiretroviral Therapy (HAART) since it is inexpensive, readily absorbed after oral administration and non-teratogenic. In the present work, the mechanism of a previously described pharmacokinetic interaction between NVP and the antidepressant drug nortriptyline (NT) was studied using rat hepatic microsomes. The obtained results showed a competitive inhibition of the NVP metabolism by NT. The three main NVP metabolites (2-OH-NVP, 3-OH-NVP and 12-OH-NVP) where competitively inhibited with similar inhibitory constant values (Ki …
Transmission of HIV Drug Resistance and the Predicted Effect on Current First-line Regimens in Europe
2016
Transmitted human immunodeficiency virus drug resistance in Europe is stable at around 8%. The impact of baseline mutation patterns on susceptibility to antiretroviral drugs should be addressed using clinical guidelines. The impact on baseline susceptibility is largest for nonnucleoside reverse transcriptase inhibitors.
Pharmacokinetic Interaction between Nevirapine and Nortriptyline in Rats: Inhibition of Nevirapine Metabolism by Nortriptyline
2014
ABSTRACTOne of the most frequent comorbidities of HIV infection is depression, with a lifetime prevalence of 22 to 45%. Therefore, it was decided to study a potential pharmacokinetic interaction between the nonnucleoside reverse transcriptase inhibitor nevirapine (NVP) and the tricyclic antidepressant nortriptyline (NT). NVP and NT were administered to rats either orally, intraduodenally, or intravenously, and the changes in plasma levels and pharmacokinetic parameters were analyzed. Experiments with rat and human hepatic microsomes were carried out to evaluate the inhibitory effects of NT on NVP metabolism. NVP plasma concentrations were significantly higher when this drug was coadminister…
Expression of the Tumor Suppressor Gene Product p16INK4 in Benign and Malignant Melanocytic Lesions
1998
The gene MTS1 encodes p16INK4, an inhibitor of cyclin-dependent kinase 4, and is frequently deleted, mutated, or silenced by promoter methylation in melanoma cells and in the germline of familial melanoma patients. Although MTS1 may thus be the candidate melanoma suppressor gene that maps to chromosome 9p21, it is not clear how dysfunction at that locus temporally relates to melanoma progression. To further test its role in sporadic melanoma, the expression of p16INK4-protein and -mRNA was characterized in melanomas and melanocytic nevi by immunocytochemistry and in situ reverse transcriptase-polymerase chain reaction. Histologic tissue sections were immunolabeled with anti-p16INK4 antibody…
Bioavailability of nevirapine in rats after oral and subcutaneous administration, in vivo absorption from gastrointestinal segments and effect of bil…
2011
Abstract Nevirapine is a non-nucleoside reverse transcriptase inhibitor of human immunodeficiency virus type-1. The usual dosing regimen is 200 mg twice/day. Reducing the dosing frequency would significantly improve treatment adherence and quality of life of patients. To study new forms of administration, it is necessary to do pre-clinical studies and know the absorption characteristics of nevirapine in laboratory animals. However, there are no studies about its bioavailability in rats and hardly any about its pharmacokinetic. The objectives of this study were to describe the pharmacokinetics of nevirapine in rats after intravenous, oral and subcutaneous administration, to assess its absorp…
Reduction of nevirapine-driven HIV mutations by carbamazepine is modulated by CYP3A activity
2014
Item does not contain fulltext OBJECTIVES: The reduction in mother-to-child transmission of HIV-1 by single-dose nevirapine given at birth onset is achieved at the expense of de novo HIV-1 resistance mutations. In the VITA1 study, single-dose carbamazepine accelerated nevirapine elimination, but the accompanying trend towards fewer de novo HIV-1 mutations was statistically non-significant. METHODS: We investigated if the effect of carbamazepine was confounded by the individual variability in nevirapine metabolism and transport. RESULTS: Nine of 34 (26%) single-dose nevirapine-treated women had one or more nevirapine-associated resistance mutations, compared with 3 of 34 (9%) in the single-d…
Padziļināts ieskats funkcionalanalīzes kursa dažos jēdzienos un uzdevumos
2021
Darbā aplūkoti atsevišķi funkcionālanalīzes uzdevumi un jēdzieni (skalārais reizinājums un tā īpašības, Košī nevienādība un tās vispārinājumi, operatora norma) ar mērķi kritiski salīdzināt dažādos avotos atrodamo informāciju un sniegt (studentiem) labāku izpratni par apskatāmajiem jēdzieniem un uzdevumiem.
Frammenti di Nevio comico nell’ “Anonymus ad Cuimnanum”
2010
Patstāvīgās mācīšanās palīgmateriāls vidusskolēniem uzdevumos ar parametru
2019
Uzdevumi ar parametru skolēniem sagādā grūtības, jo šo uzdevumu veikšanai nepieciešamas prasmes analizēt, pielietot kritisko domāšanu un pamatot. Klasē matemātikas mācību sasniegumi ir vidēji, tādēļ skolotāji bieži vien izvēlas šo tēmu apskatīt nedaudz vai neapskatīt vispār, līdz ar to skolēniem temats jāapgūst patstāvīgi. Lai uzlabotu skolēnu prasmes uzdevumos ar parametru, autors izvirzīja mērķi - izstrādāt palīgmateriālu kā patstāvīgās mācīšanās palīgu vidusskolēniem uzdevumos ar parametru un noteikt tā ietekmi uz skolēnu prasmēm atrisināt uzdevumus ar parametru. Teorētiskajā daļā autors veica literatūras un avotu analīzi par patstāvīgo mācīšanos un vienādojumu un nevienādību atrisināšan…