Results 41 to 50 of about 2,313 (194)

Acid-catalysed carboxymethylation, methylation and dehydration of alcohols and phenols with dimethyl carbonate under mild conditions [PDF]

open access: yes, 2016
Dimethyl carbonate (DMC) chemistry has been extended to include acid-catalysed reactions of different aliphatic alcohols and phenols. For the first time, p-toluenesulfonic acid (PTSA), H2SO4, AlCl3 and FeCl3 have been shown to aid carboxymethylation for ...
Clark, James H.   +3 more
core   +1 more source

Characterization of β-N-acetylhexosaminidase (LeHex20A), a member of glycoside hydrolase family 20, from Lentinula edodes shiitake mushroom) [PDF]

open access: yes, 2012
We purified and cloned a β-N-acetylhexosaminidase, LeHex20A, with a molecular mass of 79 kDa from the fruiting body of Lentinula edodes (shiitake mushroom). The gene lehex20a gene had 1,659 nucleotides, encoding 553 amino acid residues. Sequence analysis
Hideyuki Takahashi   +4 more
core   +1 more source

Homozygous variants in the HEXB and MBOAT7 genes underlie neurological diseases in consanguineous families

open access: yesBMC Medical Genetics, 2019
Background Neurological disorders are a common cause of morbidity and mortality within Pakistani populations. It is one of the most important challenges in healthcare, with significant life-long socio-economic burden. Methods We investigated the cause of
Shazia Khan   +10 more
doaj   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

Discovery of human hexosaminidase inhibitors by in situ screening of a library of mono- and divalent pyrrolidine iminosugars [PDF]

open access: yes, 2022
Two libraries of mono- and dimeric pyrrolidine iminosugars were synthesized by CuAAC and (thio)urea-bond-forming reactions from the respective azido/aminohexylpyrrolidine iminosugar precursors.
Bojarová, Pavla   +9 more
core   +2 more sources

Light‐Switched Mesenchymal Stem Cells for In Situ Exosome Amplification in Craniofacial Bone Defect Reconstruction

open access: yesAdvanced Science, EarlyView.
Light‐switchable MSCs (MSC‐UCNPs) were constructed by intracellular incorporation of UCNPs. Upon 980 nm irradiation, UCNPs emitted localized ultraviolet light (365 nm), activating the ROS/HEXB/LAMP1 signaling pathway to suppress lysosome–multivesicular body fusion and thereby enhance exosome biogenesis. Embedded within an injectable hydrogel, MSC‐UCNPs
Tingting Wu   +7 more
wiley   +1 more source

Anti‐Allergic Potential of Chamaecrista nomame and Its Compound Luteolin for Novel Asthma Therapy

open access: yesPhytotherapy Research, EarlyView.
Chamaecrista nomame (CN) and its active compound luteolin attenuate allergic airway inflammation by inhibiting mast cell activation and suppressing NF‐κB/MAPK signaling, leading to reduced cytokine production and OVA‐specific IgE levels. ABSTRACT Asthma is a chronic inflammatory disease driven by dysregulated immune responses and mast cell activation ...
Tae Kyeom Kang   +8 more
wiley   +1 more source

Dendrimeric Antigens for Passive Mast Cell Activation in the Evaluation of Amoxicillin Allergy

open access: yesAllergy, EarlyView.
DeAns with defined nanoscale structure reveal that conjugate size and determinant density govern IgE‐mediated effector‐cell activation in AX allergy. All DeAn generations bind to sIgE in inhibition immunoassay, but only larger DeAns trigger FcεRI‐dependent responses in mouse MC, huRBL‐2H3, and LUVA cells.
Amene Tesfaye Ayane   +12 more
wiley   +1 more source

Patient‐Derived IgG Epitope Mapping of Bet v 1 Reveals Hypoallergenic Peptide Candidates for Safe and Next‐Generation Allergen Immunotherapy

open access: yesClinical &Experimental Allergy, EarlyView.
Mapping IgG epitopes of the major birch allergen Bet v 1 identified patient‐derived, hypoallergenic peptides that did not trigger degranulation. These findings support a novel, safer approach for peptide‐based allergen immunotherapy that leverages naturally induced IgG specificities from allergic individuals. ABSTRACT Background Allergen immunotherapy (
Lara Šošić   +10 more
wiley   +1 more source

The Diagnostic Odyssey of a Biochemically Confirmed Case of ML II: The First Western Patient With LYSET Deficiency

open access: yesClinical Genetics, EarlyView.
We identify a female patient with a homozygous nonsense variant (p.Gln38Ter) in the LYSET gene. This is the first western report of a challenging case of an extensive diagnostic odyssey and demonstrates that the LYSET gene must be considered in the differential diagnosis when M6P‐labeled lysosomal enzymes are altered.
Fernanda Sperb‐Ludwig   +5 more
wiley   +1 more source

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