Results 51 to 60 of about 589,422 (298)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Rapid cleavage of 6-[18F]fluoronicotinic acid prosthetic group governs BT12 glioblastoma xenograft uptake: implications for radiolabeling design of biomolecules

open access: yesEJNMMI Radiopharmacy and Chemistry
Background Peptides radiolabeled with fluorine-18 are frequently synthesized using prosthetic groups. Among them, activated esters of 6-[18F]fluoronicotinic acid ([18F]FNA) have been prepared and successfully employed for 18F-labeling of diverse ...
Pyry Dillemuth   +15 more
doaj   +1 more source

Characterization of PET image using global and local entropy

open access: yesBrazilian Journal of Radiation Sciences, 2015
In the clinical practice PET imaging provides semi-quantitative information about metabolic activities in human body, using the Standardized Uptake Value (SUV).
Igor Fagner Vieira
doaj   +1 more source

Antalya'nın Termal Konfor Özellikleri, İklim Model Verileri Kullanılarak Gelecek Projeksiyonları ve Turizme Etkileri

open access: yesCoğrafi Bilimler Dergisi, 2020
Climate data has a crucial role for planning and mitigation activities in the tourism. Trends in the Physiologically Equivalent Temperatures (FES) will provide important information to tourism.
Serhat Şensoy   +3 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

open access: yesMolecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero   +8 more
wiley   +1 more source

MODERN ISSUES OF ORGANIZING RADIO PHARM PREPARATIONS PRODUCTION BASED ON ⁶⁸GA

open access: yesРазработка и регистрация лекарственных средств, 2019
Functional diagnostics method (scintigraphy), connected with injection of radioactive isotopes with further getting of 2-D image by emitting radiation detection, is widely used in medicine.
O. A. Melnikova   +4 more
doaj  

Physiological myocardial 18F-FDG uptake pattern in oncologic PET/CT: comparison with findings in cardiac sarcoidosis [PDF]

open access: yesAsia Oceania Journal of Nuclear Medicine and Biology
Objective(s): Physiological myocardial 18F-fluorodeoxyglucose (18F-FDG) uptake in oncologic positron emission tomography (PET)/computed tomography (CT) is commonly observed with multiple variations under clinical fasting conditions.
Takashi Norikane   +7 more
doaj   +1 more source

Prognostic role of positron emission tomography and computed tomography parameters in stage I lung adenocarcinoma

open access: yesRadiology and Oncology, 2020
According to the current pathological classification, lung adenocarcinoma includes histological subtypes with significantly different prognoses, which may require specific surgical approaches.
Carretta Angelo   +9 more
doaj   +1 more source

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