Results 121 to 130 of about 90,075 (209)

Carbon‐Supported Catalytic Systems Assembled by π–π Interactions

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
This review explores the noncovalent immobilization of organic and organometallic catalysts on carbonaceous supports through π–π interactions, highlighting its potential to enhance catalyst recovery, recyclability, and the sustainability of organic synthesis.
Chloé Jamalkhan   +8 more
wiley   +1 more source

An efficient cascade reaction for the synthesis of oxazino[4,3-a]indoles and pyrano[3,4-b]indoles from vinyl selenones

open access: yes, 2013
Indole derivatives represent a common structural motif in diverse naturally occurring alkaloids and pharmaceutical or agrochemical products. In recent years vinyl selenones have been identified as valuable and versatile substrates to effect economical ...
K. Berettoni   +3 more
core  

Ketogenic diet for infantile epileptic spasms

open access: yesEpilepsia Open, EarlyView.
Abstract Approximately half of all cases of Infantile Epileptic Spasms Syndrome (IESS) do not respond to vigabatrin and hormonal therapies. There is no clear consensus as to the second‐line therapy for IESS. Ketogenic diet (KD) has emerged as an effective treatment for certain drug‐resistant epilepsies and in many cases of IESS.
Morris H. Scantlebury   +3 more
wiley   +1 more source

Forage chemical composition drives early metabolic shifts in ponies fed different haylages

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Rapid changes between feeds can cause dysbiosis and colic in horses. The metabolic consequences of transitioning between haylages (HY) are currently unknown. Objectives To characterise urinary and faecal metabonomics in ponies transitioned between HY varying in botanical composition and physiological age and to evaluate the speed of
M. J. S. Moore‐Colyer   +2 more
wiley   +1 more source

Microbial Safety and Level of Aflatoxins in Peanut Butter Collected From Addis Ababa, Ethiopia

open access: yesFood Chemistry International, EarlyView.
This study evaluated thirty retail peanut butter samples from Addis Ababa, Ethiopia, for moisture, microbiological quality, and aflatoxin contamination using UHPLC‐FLD, ISO, and AOAC methods. While all samples met ≤ 2.0% moisture limit and tested negative for Salmonella, 93.3% showed severe aflatoxin contamination (mean total aflatoxin 215.3 ± 14.2 µg ...
Esubalew Yitayew Kahilie   +1 more
wiley   +1 more source

Annona squamosa: Phytochemical Fingerprinting, Health‐Improving Traits, and Functional Applications

open access: yesFood Chemistry International, EarlyView.
Annona squamosa (custard apple) is a nutrient‐rich fruit containing diverse bioactive phytochemicals (e.g., acetogenins, flavonoids, and alkaloids) that contribute to multiple health benefits, including antioxidant, antihyperlipidemic, and antimicrobial activities, highlighting its potential as a functional food and medicinal resource.
Mohamed Fawzy Ramadan   +4 more
wiley   +1 more source

Spirobifluorene fusion in multiple resonance frameworks enables efficient pure‐red OLEDs with narrowband emission and suppressed efficiency roll‐off

open access: yesFlexMat, EarlyView.
An orthogonal spirobifluorene‐fusion strategy is introduced for B/N/O‐alternated MR frameworks, enabling improved kRISC (5.46 × 103 s−1), high ΦPL (97%), and narrow‐band pure‐red emission. Vacuum‐evaporated OLEDs incorporating this emitter achieve an EQEmax >40% (FWHM = 36 nm) and exhibit exceptionally low efficiency roll‐off at high luminance ...
Yan‐Yun Jing   +7 more
wiley   +1 more source

System‐Local Axes and Metabolic Reprogramming From Health to Response in House Dust Mite‐Specific Subcutaneous Immunotherapy for Allergic Rhinitis

open access: yesiMetaMed, EarlyView.
This study delineated nasal‐plasma metabolic reprogramming in house dust mite‐allergic rhinitis (HDM‐AR) and subcutaneous immunotherapy (SCIT) response, showing compartment‐specific signatures dominated by nasal lipid‐redox and plasma nucleotide‐NAD+ axes and across the HC–HDM‐AR–SCIT response continuum, dual‑compartment metabolites exhibited ...
Bixing Fang   +13 more
wiley   +1 more source

Chronic High‐Salt Intake Reprograms Metabolic Homeostasis Driven by Dietary Rice Varieties via Microbial and Metabolite Associations

open access: yesiMetaMed, EarlyView.
Using a 2% salt diet and a 10‐month feeding to model chronic human sodium exposure, we found that black rice improved glucose tolerance and short‐chain fatty acids, but 2% salt inverted black rice's blood glucose benefits. White rice + 2% salt treatment uniquely increased short‐chain fatty acids.
Xiaofang Li   +8 more
wiley   +1 more source

Lactobacillus johnsonii attenuates ovarian aging by remodeling the gut–ovary axis

open access: yesiMetaOmics, EarlyView.
Aging is accompanied by a reduced abundance of L. johnsonii and ovarian decline. Supplementation with L. johnsonii elevates microbial IPA production via the LdhA enzyme and commensal bacteria. IPA activates the AhR/YAP signaling axis, promoting YAP nuclear translocation and inducing the expression of downstream target genes CYR61 and CTGF. This cascade
Jiamin He   +16 more
wiley   +1 more source

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