0000000000080309

AUTHOR

Baiba Zvejniece

showing 5 related works from this author

Skull Fractures Induce Neuroinflammation and Worsen Outcomes after Closed Head Injury in Mice

2020

The weight-drop model is used widely to replicate closed-head injuries in mice; however, the histopathological and functional outcomes may vary significantly between laboratories. Because skull fractures are reported to occur in this model, we aimed to evaluate whether these breaks may influence the variability of the weight-drop (WD) model. Male Swiss Webster mice underwent WD injury with either a 2 or 5 mm cone tip, and behavior was assessed at 2 h and 24 h thereafter using the neurological severity score. The expression of interleukin (IL)-6, IL-1β, tumor necrosis factor-α, matrix metalloproteinase-9, and tissue inhibitor of metalloproteinase-1 genes was m…

Male030506 rehabilitationmedicine.medical_specialtyTraumatic brain injurySkull fractureMice03 medical and health sciencesTraumatic brain injury0302 clinical medicineNeuroinflammationSkull fractureHead Injuries ClosedBrain Injuries TraumaticWeight-drop modelmedicineAnimalsNeuroinflammationInflammationSkull Fracturesbusiness.industryOriginal Articlesmedicine.diseaseSurgeryDisease Models AnimalSkullmedicine.anatomical_structureClosed head injuryNeurology (clinical)0305 other medical sciencebusiness030217 neurology & neurosurgeryJournal of Neurotrauma
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Antidepressive-like Behavior-Related Metabolomic Signatures of Sigma-1 Receptor Knockout Mice

2022

Sigma-1 receptor (Sig1R) has been proposed as a therapeutic target for neurological, neu-rodegenerative, and psychiatric disorders, including depression and anxiety. Identifying metabolites that are affected by Sig1R absence and cross-referencing them with specific mood-related behaviors would be helpful for the development of new therapies for Sig1R-associated disorders. Here, we examined metabolic profiles in the blood and brains of male CD-1 background Sig1R knockout (KO) mice in adulthood and old age and correlated them with the assessment of depression-and anxiety-related behaviors. The most pronounced changes in the metabolic profile were observed in the plasma of adult Sig1R KO mice.…

:PHARMACY::Biopharmacy [Research Subject Categories]sigma-1 receptorMedicine (miscellaneous)metabolomic signaturesceramidedespair behaviorGeneral Biochemistry Genetics and Molecular Biologyserotonin
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Genetic inactivation of the sigma-1 chaperone protein results in decreased expression of the R2 subunit of the GABA-B receptor and increased suscepti…

2021

There is a growing body of evidence demonstrating the significant involvement of the sigma-1 chaperone protein in the modulation of seizures. Several sigma-1 receptor (Sig1R) ligands have been demonstrated to regulate the seizure threshold in acute and chronic seizure models. However, the mechanism by which Sig1R modulates the excitatory and inhibitory pathways in the brain has not been elucidated. The aim of this study was to compare the susceptibility to seizures of wild type (WT) and Sig1R knockout (Sig1R−/−) mice in intravenous pentylenetetrazol (PTZ) and (+)-bicuculline (BIC) infusion-induced acute seizure and Sig1R antagonist NE-100-induced seizure models. To determine pos…

0301 basic medicinemedicine.medical_specialtyKnockoutGene ExpressionNitric Oxide Synthase Type IISigma-1 receptorConvulsantsAnisolesSigma-1 receptor Knockout GABA-B receptor Seizures Medial habenula NE-100BicucullineHippocampuslcsh:RC321-571Mice03 medical and health sciences0302 clinical medicineDownregulation and upregulationSeizuresInternal medicineGene expressionmedicineAnimalsReceptors sigmaGABA-B receptorGenetic Predisposition to DiseasePentylenetetrazolReceptorlcsh:Neurosciences. Biological psychiatry. NeuropsychiatryMice KnockoutHabenulaSigma-1 receptorPropylaminesSeizure thresholdChemistryMedial habenulaWild typeAntagonistReceptors GABA-A030104 developmental biologyEndocrinologyReceptors GABA-BNeurologyNE-100Pentylenetetrazole030217 neurology & neurosurgerymedicine.drugNeurobiology of Disease
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R-fenibuta efekti neiropātisko sāpju modeļos in vivo

2016

Klīnikā fenibutu pielieto kā garastāvokli uzlabojošu, anksiolītisku un nootropu medikamentu. R-fenibuts ((3R)-fenil-4-aminosviestskābe) ir optiski tīra un farmakoloģiski aktīva racēmiskā fenibuta forma. R-fenibuts ir atbildīgs par racēmiskā fenibuta farmakoloģisko aktivitāti, kas korelē ar tā saistīšanos pie gamma aminosviestskābes (GASS)B apakštipa receptoriem. Strukturāli R-fenibuts ir baklofēna ((R,S)-4-amino-3-(4-hlorfenil)sviestskābes) un gabapentīna (GBP, (2-[1-(aminometil)cikloheksil]acetskābes) analogs. GBP pretsāpju darbību nodrošina tā saistīšanās ar lādiņa atkarīgo kalcija jonu kanālu (LAKK) α2–δ subvienību, tajā pašā laikā GBP nesaistās ar GASSB receptoriem, savukārt baklofēns s…

Neiropātiskas sāpesLādiņa atkarīgo kalcija jonu kanālu α2–δ subvienībaR-fenibutsSēžas nerva hronisks bojājumsMedicīna
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"Labticīga ieguvēja aizsardzība"

2014

Bakalaura darbs „Labticīga ieguvēja aizsardzība” sniedz ieskatu pašreizējā normatīvo tiesību aktu regulējumā un norāda uz tā problemātiku labticīga ieguvēja institūta jomā. Darba mērķis ir izpētīt un analizēt tiesisko regulējumu, tiesu prakses atziņas saistībā ar labticīgo ieguvēju un šī institūta ietekmi uz civiltiesisko apgrozību. Autore darba izstrādē izvērtē labticīga ieguvēja aizsardzības pamatotību Latvijas Republikas judikatūrā, pastiprināti pievēršot uzmanību uz apstākļiem, kas varētu liecināt par ieguvēja ļaunticību. Darba rezultātā autore izstrādā labticīga ieguvēja definīcijas redakciju, sniedz priekšlikumus taisnīgākai materiālo tiesību normu piemērošanai, izvērtē ieguvēja labti…

Juridiskā zinātne
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