Digital repository of Slovenian research organisations

Search the repository
A+ | A- | Help | SLO | ENG

Query: search in
search in
search in
search in
Research data

Options:
  Reset

Query: "author" (Prosenc Ur��ula) .

1 - 4 / 4
First pagePrevious page1Next pageLast page
1.
Odkrivanje dednega sindroma von Hippel-Lindau : določanje mutacij v genu VHL
Maša Milatovič, Uršula Prosenc, Srdjan Novaković, 2012

Abstract: Na Oddelku za molekularno diagnostiko Onkološkega inštituta Ljubljana smo uvedli testiranje mutacij v tumorskem supresorskem genu von Hippel-Lindau (VHL). Mutacije v tem genu povečajo verjetnost za nastanek rakastih bolezni, povezanih s sindromom »von Hippel-Lindau« (VHL), kakor tudi z nastankom sporadičnega raka ledvic. Testiranje dednih mutacij pri bolnikih s sumom na sindrom VHL omogoča zgodnjo pravilno diagnozo bolezni. Prisotnost mutacije v genu VHL je dovolj za potrditev diagnoze sindroma VHL tudi ob odsotnosti značilnih tumorjev. Za testiranje prisotnosti mutacij v genu VHL uporabljamo metodo neposrednega sekvenciranja in metodo MLPA (ang. multiplex ligation-dependent probe amplification). S sekvenciranjem odkrivamo točkovne mutacije in manjše delecije ter insercije. Z metodo MLPA pa prisotnost večjih delecij in insercij v genu oziroma delecijo celotnega gena. Pravočasno odkrivanje mutacij v genih, povezanih z nastankom raka, je za nosilce mutacij pomembno, saj je dokazana mutacija razlog za prilagojeno klinično spremljanje in/ali preventivne ukrepe pri nosilcih mutacije. Posledično so zaradi tega povečane možnosti za preprečevanje ali zgodnejše odkrivanje raka.
Keywords: genetika, mutacije, genetski testi
DiRROS - Published: 31.08.2018; Views: 2248; Downloads: 613
.pdf Fulltext (512,60 KB)

2.
Več obrazov sindroma Lynch : odkrivanje zarodnih mutacij v genu MSH6
Uršula Prosenc, Srdjan Novaković, 2013

Abstract: Na Oddelku za molekularno diagnostiko Onkološkega inštituta Ljubljana smo uvedli testiranje zarodnih mutacij vgenu MSH6. Mutacije v tem genu so povezane z Lynchevim sindromom in predstavljajo povečano verjetnost za nastanekraka na debelem črevesu in danki, raka maternične sluznice,raka jajčnikov in drugih vrst raka. Za testiranje prisotnosti mutacij v genu MSH6 uporabljamo metodo neposrednega sekvenciranja in metodo MLPA (ang. multiplex ligation-dependentprobe amplification). S sekvenciranjem odkrivamo točkovne mutacije in manjše delecije ter insercije. Z metodo MLPA pa prisotnost večjih delecij in insercij v genu, oziroma delecijo celotnega gena. Mutacije v genu MSH6 testiramo pri osebah, za katere se v postopku genetskega svetovanja pokaže večja verjetnost Lynchevega sindroma. Pravočasno odkrivanje mutacij v genih, povezanih z nastankom raka, je za nosilce mutacij pomembno, saj je dokazana mutacija razlog za prilagojeno klinično spremljanje in preventivne ukrepe pri nosilcih mutacije.
Keywords: dedni rak, genetika, gen MSH6, zarodne mutacije
DiRROS - Published: 31.08.2018; Views: 2135; Downloads: 566
.pdf Fulltext (333,19 KB)

3.
4.
Robust saliva-based RNA extraction-free one-step nucleic acid amplification test for mass SARS-CoV-2 monitoring
Mojca Benčina, Roman Jerala, Tatjana Lejko-Zupanc, Gabriele Turel, Viktorija Tomič, Mihaela Zidarn, Žiga Jensterle, Katarina Prosenc, Mojca Milavec, Tina Demšar, Polona Kogovšek, Irena Mlinarič-Raščan, Dunja Urbančič, Alenka Šmid, Petra Sušjan, Arne Praznik, Tina Šket, Eva Rajh, 2021

Abstract: Early diagnosis with rapid detection of the virus plays a key role in preventing the spread of infection and in treating patients effectively. In order to address the need for a straightforward detection of SARS-CoV-2 infection and assessment of viral spread, we developed rapid, sensitive, extraction-free one-step reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and reverse transcription loop-mediated isothermal amplification (RT-LAMP) tests for detecting SARS-CoV-2 in saliva. We analyzed over 700 matched pairs of saliva and nasopharyngeal swab (NSB) specimens from asymptomatic and symptomatic individuals. Saliva, as either an oral cavity swab or passive drool, was collected in an RNA stabilization buffer. The stabilized saliva specimens were heat-treated and directly analyzed without RNA extraction. The diagnostic sensitivity of saliva-based RT-qPCR was at least 95% in individuals with subclinical infection and outperformed RT-LAMP, which had at least 70% sensitivity when compared to NSBs analyzed with a clinical RT-qPCR test. The diagnostic sensitivity for passive drool saliva was higher than that of oral cavity swab specimens (95% and 87%, respectively). A rapid, sensitive one-step extraction-free RT-qPCR test for detecting SARS-CoV-2 in passive drool saliva is operationally simple and can be easily implemented using existing testing sites, thus allowing high-throughput, rapid, and repeated testing of large populations. Furthermore, saliva testing is adequate to detect individuals in an asymptomatic screening program and can help improve voluntary screening compliance for those individuals averse to various forms of nasal collections.
Keywords: SARS-CoV-2, COVID-19, COVID-19 serological testing, real-time polymerase chain reaction, saliva, oral cavity swab, passive drool, pooling
DiRROS - Published: 09.11.2021; Views: 416; Downloads: 174
URL Fulltext (0,00 KB)

Search done in 0 sec.
Back to top