Results 51 to 60 of about 4,989,359 (237)

Lectin‐Histochemical Pattern on the Cystic and Neoplastic Ovaries of Bitches

open access: yesReproduction in Domestic Animals, Volume 60, Issue 5, May 2025.
ABSTRACT Studies have demonstrated that many reproductive disorders can compromise the binding pattern of glycosidic residues, mainly in cows and sows. In the current study, the binding pattern of lectins was characterised and compared in normal and pathological ovaries of bitches.
Juliano P. Terra   +9 more
wiley   +1 more source

Design and Synthesis of a Sialic Acid‐Derived Tracer for 18F‐PET Multiple Sclerosis Imaging

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 9, March 3, 2025.
To contribute to the growing interest in developing selective MS imaging agents, an 18F‐modified sialic acid‐based PET‐tracer candidate with high affinity towards myelin‐associated glycoprotein (MAG) is disclosed. A multi‐step synthesis of the tracer is disclosed, together preliminary validation of the radio‐labeling process.
Kathrin Siebold   +4 more
wiley   +1 more source

Sphingolipid composition of human platelets

open access: yesJournal of Lipid Research, 1973
Total lipid extracts from washed trypsinized human platelets were fractionated into neutral lipids, glycosphingolipids, and phosphclipids by silicic acid chromatography.
Robert V.P. Tao   +2 more
doaj  

Changes in the Serum and Tissue Levels of Free and Conjugated Sialic Acids, Neu5Ac, Neu5Gc, and KDN in Mice after the Oral Administration of Edible Bird’s Nests: An LC–MS/MS Quantitative Analysis

open access: yesSeparations
Edible bird’s nests have a variety of biological activities, the main components of which are sialic acids. Sialic acids are a group of nine-carbon N-acetylated derivatives of neuraminic acid containing a keto group at position C2 and play important ...
Meng-Hua Wang   +5 more
doaj   +1 more source

Geometric-algebraic approach to aqueous solutions of diprotic acids and its buffer mixtures [PDF]

open access: yesarXiv, 2023
A closed-form analytical expression for $\ce{[H3O+]}$ has been obtained for aqueous solutions of diprotic acids and its soluble salts. This formula allows to calculate the pH of aqueous solutions of diprotic acids, their buffer solutions, and the titrations of these two by a strong base, from the values of p$K_1$, p$K_2$, and the effective ...
arxiv  

Direct Experimental Characterization of a Sialyl Cation

open access: yesChemistry – A European Journal, Volume 31, Issue 7, February 3, 2025.
In this study, the sialyl cation, the intermediate of sialylation reactions, is experimentally characterized for the first time using messenger‐tagging infrared spectroscopy. The results suggest that this intermediate is stabilized by remote participation of the C5‐NHAc group, leading to the formation of a bicyclic structure.
Franziska Dahlmann   +6 more
wiley   +1 more source

Effects of patent foramen ovale in migraine: a metabolomics‐based study

open access: yesThe Journal of Physiology, Volume 603, Issue 4, Page 809-835, 15 February 2025.
Abstract figure legend Aura, cystatin‐C and calcium are biomarkers of PFO in migraine. PFO closure relieves migraine by regulating 5‐HT metabolism and redox reactions, especially in the posterior head. cTTE, contrast‐transthoracic echocardiography; DESI‐MSI, desorption electrospray ionization mass imaging; H&E, haematoxylin and eosin; PFO, patent ...
Bosi Dong   +15 more
wiley   +1 more source

Carbon Doping of MgB2 by Toluene and Malic-Acid-in-Toluene [PDF]

open access: yes, 2010
The decomposition of malic acid in the presence of Mg and B was studied using Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) which revealed that malic acid reacted with Mg but not B. Also, the addition of toluene to dissolve malic acid followed by subsequent drying resulted in no reaction with Mg, indicating that the malic
arxiv   +1 more source

Aldolase B Deficient Mice Are Characterized by Hepatic Nucleotide Sugar Abnormalities

open access: yesJournal of Inherited Metabolic Disease, Volume 48, Issue 1, January 2025.
ABSTRACT Hereditary fructose intolerance (HFI) is characterized by liver damage and a secondary defect in N‐linked glycosylation due to impairment of mannose phosphate isomerase (MPI). Mannose treatment has been shown to be an effective treatment in a primary defect in MPI (i.e., MPI‐CDG), which is also characterized by liver damage.
Amée M. Buziau   +7 more
wiley   +1 more source

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