Search results for "PSMA"
showing 10 items of 22 documents
Diagnostic efficacy of Gallium-68-PSMA PET/CT in 565 patients with biochemical recurrence of prostate cancer
2019
Clinical Translation and First In-Human Use of [44Sc]Sc-PSMA-617 for PET Imaging of Metastasized Castrate-Resistant Prostate Cancer
2017
Background: Various trivalent radiometals are well suited for labeling of DOTA-conjugated variants of Glu-ureido-based prostate-specific membrane antigen (PSMA) inhibitors. The DOTA-conjugate PSMA-617 has proven high potential in PSMA radioligand therapy (PSMA-RLT) of prostate cancer as well as PET imaging when labeled with lutetium-177 and gallium-68 respectively. Considering the relatively short physical half-life of gallium-68 this positron emitter precludes prolonged acquisition periods, as required for pre-therapeutic dosimetry or intraoperative applications. In this context, the positron emitter scandium-44 is an attractive alternative for PET imaging. We report the synthesis of [44Sc…
Reply: “The Impact of 68Ga-PSMA PET/CT and PET/MRI on the Management of Prostate Cancer”
2019
PSMA6 gēna promotera poliadenozīna trakta polimorfismu asociācija ar bronhiālo astmu, aptaukošanos un 1. tipa cukura diabētu Latvijas populācijā
2015
Ubikitīna – proteasomu sistēma ir multienzīmatisks proteāžu komplekss, kas regule dažādus šūnu procesus. Šis sistēmas disregulācija var būt iesaistīta tādos cilvēka patoloģiju rašanās mehanismos kā 2. tipa cukura diabēts, juvenīlais idiopātiskais artrīts un Greivsa slimība. Tas var būt atkarīgs no proteasomas gēnu strukturālām pārmaiņām, kuri kodē proteasomu apakšvienības. Šajā pētījumā mēs analizējam asociāciju starp PSMA6 gēna promotera poly(A) (c. –655 An) mikrosatelīta garuma izmaiņām un bronhiālo astmu (BA), 1. tipa cukura diabētu (T1DM) un aptaukošanos (APT) Latvijas populācijā. PSMA6 gēna poly(A) polimorfisms tika analizēts ar gadījuma / kontroles pētījumu un bioinformātiskām program…
In vitro vēža šūnu modeļsistēmas izstrāde molekulāri mērķētu radionuklīdu testēšanai
2019
Prostatas vēzis ir ceturtais biežāk diagnosticētais vēzis Eiropā, 2018. gadā un tas ir kļuvis par visbiežāk sastopamo vēzi vīriešu vidū. Nozīmīgi klīnisko pētījumu rezultāti prostatas vēža diagnostikā un terapijā ir sasniegti ar radioaktīvi iezīmētu PSMA ligandu 68Ga-PSMA – diagnostikai un 177Lu-PSMA – terapijai. Neiroendokrīnie audzēji ir neviendabīga agresīvu audzēju grupa, kam raksturīgi dažādi un bieži nespecifiski simptomi, kas apgrūtina precīzu audzēja primāro diagnostiku un saslimšanas stadijas precizēšanu. Pašlaik šo audzēju diagnostikā un ārstēšanā izmanto ar SSTR2 ligandiem (somatostatīna analogiem) konjugētus radionuklīdus. Šī darba mērķis bija izveidot uz dažādām šūnu līnijām ba…
Evaluation of proteasomal gene polymorphisms in Lithuanian patients with asthma.
2014
To investigate polymorphisms of proteasomal genes PSMA6 (rs1048990 and rs2277460), PSMC6 (rs2295826 and rs2295827) and PSMA3 (rs2348071) in Lithuanian patients with asthma.One-hundred forty-six asthma patients and 150 control subjects were studied. DNA was extracted from peripheral blood samples. Five single nucleotide polymorphisms (SNP's) of the three proteasomal genes were analyzed using allele-specific amplification or the cleaved amplified polymorphic sequence method.While certain alleles and genotypes of PSMA6 rs2277460 and rs1048990 and PSMA3 rs2348071 SNP's occurred more frequently in asthma patients than in controls, no statistically significant differences in alleles or genotypes …
18F-PSMA-1007 ražošana, kvalitātes kontrole un tā salīdzinājums ar citiem radiofarmaceitiskajiem preparātiem
2020
Literatūras apskatā apkopota informācija par radionuklīdiem, radioaktīvo sabrukšanu, pozitronu emisijas tomogrāfiju, prostatas vēzi, radiofarmaceitisko preparātu būtību, nozīmi un kvalitātes kontroli. Tāpat ir apkopota informācija arī par konkrēto radiofarmaceitisko preparātu – 18F-PSMA-1007 un tā sintēzi, kā arī izmantošanas iespējām medicīnā. Maģistra darba eksperimentālajā daļā veikta 18F radionuklīda iegūšana un radiofarmaceitiskā preparāta 18F-PSMA-1007 sintēze, izstrādātas kvalitātes kontroles analīzes metodes, ar kurām tika noteikta radiofarmaceitiskā preparāta radionuklīdu, radioķīmiskās un ķīmiskās tīrības pārbaude, veikta identitātes pierādīšana un noteikti citi kvalitātes paramet…
The Activation Status of the TGF-β Transducer Smad2 Is Associated with a Reduced Survival in Gastrointestinal Cancers: A Systematic Review and Meta-A…
2019
Aberrant function of Smad2, a crucial member of transforming growth factor beta (TGF-β) signaling, is associated with the development of malignancies, particularly in the gastrointestinal district. However, little is known about its possible prognostic role in such tumor types. With the first meta-analysis on this topic, we demonstrated that the lack of the activated form of Smad2 (phosphor-Smad2 or pSmad2), which was meant to be the C-terminally phosphorylated form, showed a statistically significant association with an increased risk of all-cause mortality in patients with gastrointestinal cancers (RR, 1.58; 95% CI, 1.05–2.37, p = 0.029, I2 = 84%), also after having adjusted for potential…
PSMA6 (rs2277460, rs1048990), PSMC6 (rs2295826, rs2295827) and PSMA3 (rs2348071) genetic diversity in Latvians, Lithuanians and Taiwanese
2014
PSMA6 (rs2277460, rs1048990), PSMC6 (rs2295826, rs2295827) and PSMA3 (rs2348071) genetic diversity was investigated in 1438 unrelated subjects from Latvia, Lithuania and Taiwan. In general, polymorphism of each individual locus showed tendencies similar to determined previously in HapMap populations. Main differences concern Taiwanese and include presence of rs2277460 rare allele A not found before in Asians and absence of rs2295827 rare alleles homozygotes TT observed in all other human populations. Observed patterns of SNPs and haplotype diversity were compatible with expectation of neutral model of evolution. Linkage disequilibrium between the rs2295826 and rs2295827 was detected to be c…
Association Study of Genetic Variants in the 14q11 - 14q13 Proteasomal Genes Cluster with Juvenile Idiopathic Arthritis (JIA) in Latvian Population
2009
Association Study of Genetic Variants in the 14q11 - 14q13 Proteasomal Genes Cluster with Juvenile Idiopathic Arthritis (JIA) in Latvian Population The possible role of proteasomes in the development of autoimmune diseases was hypothesised after discovery of the involvement of proteasomal LMP2 and LMP7 subunits in antigene processing. The objective of this study was to determine the association between allelic variants of the genes encoding proteasomal proteins PSME1, PSME2 and PSMA6 and juvenile idiopathic arthritis (JIA) in the Latvian population. One Indel G-4543 CA-4544 →GA and four SNPs related to the PSMA6 gene (A-2486 →G and C-1910 →T, upstream promoter, C-110 →A of promoter, and C-8…