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Unveiling the unusual i-motif-derived architecture of a DNA aptamer exhibiting high affinity for influenza A virus.
Nucleic Acids Res
January 2025
Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia.
Non-canonical nucleic acid structures play significant roles in cellular processes through selective interactions with proteins. While both natural and artificial G-quadruplexes have been extensively studied, the functions of i-motifs remain less understood. This study investigates the artificial aptamer BV42, which binds strongly to influenza A virus hemagglutinin and unexpectedly retains its i-motif structure even at neutral pH.
View Article and Find Full Text PDFUnusual FDG PET Appearances in a Patient With Metastatic Breast Carcinoma.
Clin Nucl Med
November 2024
From the Department of Nuclear Medicine, University College London, London, England.
This was a case of a 52-year-old woman with a history of multiorgan, metastatic breast cancer, who underwent several lines of treatment. She had brain metastases, which were treated with gamma knife. She progressed at other organ sites with additional recurrence of brain metastases and leptomeningeal disease, which demonstrated an interesting pattern of intracranial FDG uptake with further seizure-related muscular uptake.
View Article and Find Full Text PDFUnusual FDG PET Appearances in a Patient With Metastatic Breast Carcinoma.
Clin Nucl Med
February 2025
From the Department of Nuclear Medicine, University College London, London, England.
This was a case of a 52-year-old woman with a history of multiorgan, metastatic breast cancer, who underwent several lines of treatment. She had brain metastases, which were treated with gamma knife. She progressed at other organ sites with additional recurrence of brain metastases and leptomeningeal disease, which demonstrated an interesting pattern of intracranial FDG uptake with further seizure-related muscular uptake.
View Article and Find Full Text PDFStrategies to Stabilize Dalbavancin in Aqueous Solutions; Section-2: The Effects of 2 Hydroxypropyl-β-Cyclodextrin and Acetate Buffer with and Without Divalent Metal Ions.
Pharmaceutics
November 2024
Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115, USA.
The effect of 2-hydroxpropyl-β-cyclodextrin (2HPβCD) with or without divalent metal ions (Ca, Mg, and Zn) on the stability of dalbavancin in acetate buffer was investigated. Dalbavancin recovery from formulations with 2HPβCD and divalent metal ions after four weeks of storage at 5 °C and 55 °C was measured by RP-HPLC and HP-SEC; a longer-term study was carried out over six months at 5 °C, 25 °C, and 40 °C. Binding of 2HPβCD was characterized by isothermal titration calorimetry (ITC) and nuclear magnetic resonance (NMR).
View Article and Find Full Text PDFRisk Factors for Venous Thromboembolism in Acute Promyelocytic Leukemia.
Cancers (Basel)
December 2024
Clinic of Hematology, University Clinical Center of Serbia, 11000 Belgrade, Serbia.
Background: Acute promyelocytic leukemia (APL) is frequently associated with disseminated intravascular coagulation (DIC), leading to potentially life-threatening bleeding. Compared to bleeding, thromboses are a less commonly encountered problem.
Objective: The objective of our study was to identify the incidence and predictive value of demographic data, clinical-laboratory parameters, and thrombosis risk assessment models (RAMs) for venous thromboembolism (VTE) in patients with APL.
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