Tissue-specific modulation of NADH consumption as an anti-aging intervention in Drosophila.

Aging is characterized by extensive metabolic dysregulation. Redox coenzyme nicotinamide adenine dinucleotide (NAD) can exist in oxidized (NAD) or reduced (NADH) states, which together form a key NADH/NAD redox pair. Total levels of NAD decline with age in a tissue-specific manner, thereby playing a significant role in the aging process.

New cerebrosides and ceramide with other constituents from the aerial parts of Raphidiocystis mannii Hook. f. and their cytotoxic activities.

Two new cerebrosides, raphimanosides A (1) and B (2), and a new ceramide, raphimanide (3), were isolated from the aerial parts of Raphidiocystis mannii Hook. f., along with ten known compounds (4-13).

Applications of Tert-Butyl-Phenolic Antioxidants in Consumer Products and Their Potential Toxicities in Humans.

Tert-butyl phenolic antioxidants (TBP-AOs) are employed to inhibit oxidation and function as stabilizers and protectants in a broad spectrum of consumer products, such as food packaging, adhesives, lubricants, plastics, and cosmetics. The extensive utilization of TBP-AOs results in human exposure through various pathways. Furthermore, some TBP-AOs have been identified as potential endocrine disruptors and may cause liver and lung damage, as well as allergic reactions.

Strategic Acyl Carrier Protein Engineering Enables Functional Type II Polyketide Synthase Reconstitution In Vitro.

Microbial polyketides represent a structurally diverse class of secondary metabolites with medicinally relevant properties. Aromatic polyketides are produced by type II polyketide synthase (PKS) systems, each minimally composed of a ketosynthase-chain length factor (KS-CLF) and a phosphopantetheinylated acyl carrier protein (-ACP). Although type II PKSs are found throughout the bacterial kingdom, and despite their importance to strategic bioengineering, type II PKSs have not been well-studied .

Associations between dose-response of serum creatinine and type 2 diabetes mellitus risk: consistent and robust evidence from a systematic review and meta-analysis.

Background: Skeletal muscle is the key target of insulin action. Therefore, a reduction in skeletal muscle mass may trigger insulin resistance, a mechanism of diabetes. Creatinine is the only metabolite of creatine phosphate in the skeletal muscle.