Results 31 to 40 of about 24,818 (181)

Navigating Transition Metal‐Dependent Cell Death: Mechanisms, Crosstalk, and Future Directions

Advanced Science, EarlyView.
Transition metals trigger distinct regulated cell death pathways beyond traditional apoptosis. This review examines ferroptosis (iron‐catalyzed lipid peroxidation) and cuproptosis (copper‐induced mitochondrial proteotoxicity), while exploring hypothetical “cobaltosis” as a novel pathway.
Qinghang Song, Yuxuan Yang, Lina Yang
wiley   +1 more source

A dodecylamine derivative of cyanocobalamin potently inhibits the activities of cobalamin-dependent methylmalonyl-CoA mutase and methionine synthase of Caenorhabditis elegans

FEBS Open Bio, 2014
In this study, we showed that cyanocobalamin dodecylamine, a ribose 5′-carbamate derivative of cyanocobalamin, was absorbed and accumulated to significant levels by Caenorhabditis elegans and was not further metabolized.
Tomohiro Bito, Yukinori Yabuta, Tsuyoshi Ichiyanagi, Tsuyoshi Kawano, Fumio Watanabe   +4 more
doaj   +1 more source

Structure of full-length cobalamin-dependent methionine synthase and cofactor loading captured in crystallo

Nature Communications, 2023
Cobalamin-dependent methionine synthase (MS) is a key enzyme in methionine and folate one-carbon metabolism. MS is a large multi-domain protein capable of binding and activating three substrates: homocysteine, folate, and S-adenosylmethionine for ...
Johnny Mendoza, Meredith Purchal, Kazuhiro Yamada, Markos Koutmos   +3 more
doaj   +1 more source

Biosynthese der Biphenomycine, einer Familie potenter Antibiotika

Angewandte Chemie, EarlyView.
Der vollständige Biosyntheseweg der Biphenomycin‐Antibiotika wird aufgeklärt und offenbart eine einzigartige enzymatische Maschinerie mit einem bifunktionellen MNIO, einer regioselektiven Arginase, einem B12‐abhängigen rSAM für C,C‐Kupplung, Enzymen zur Hydroxylierung sowie einer zweifach spezifischen Metalloprotease.
Elisabeth Strunk, Alfred Lobert, Tatiana Khorovich, Katia M. Guzman Lucio, René Richarz, Maximilian Hohmann, Paul M. D'Agostino, Tobias A. M. Gulder   +7 more
wiley   +1 more source

Biosynthesis of the Biphenomycin Family of Potent Antibiotics

Angewandte Chemie International Edition, EarlyView.
The complete biosynthetic pathway of the biphenomycin antibiotics is elucidated, revealing a unique enzymatic machinery featuring a bifunctional MNIO, a regioselective arginase, a B12‐dependent rSAM for C,C coupling, hydroxylation enzymology, and a metalloprotease with dual‐specificity.
Elisabeth Strunk, Alfred Lobert, Tatiana Khorovich, Katia M. Guzman Lucio, René Richarz, Maximilian Hohmann, Paul M. D'Agostino, Tobias A. M. Gulder   +7 more
wiley   +1 more source

Overview of Encapsulated Lysine and Methionine and Their Impacts on Transition Cow Performance and Health

Animal Research and One Health, EarlyView.
The transition period in dairy cows, spanning 3 weeks before and after calving, is a critical phase characterized by increased nutrient demands, reduced dry matter intake (DMI), and elevated risk of metabolic disorders such as negative nutrient balance (NNB), lipolysis, proteolysis, and oxidative stress.
Mohammed S. Seleem, Samy A. Elsaadawy, Zhaohai Wu, Lu Ma, Todd R. Callaway, Dengpan Bu   +5 more
wiley   +1 more source

Inherited metabolic epilepsies–established diseases, new approaches

Epilepsia Open, EarlyView.
Abstract Inherited metabolic epilepsies (IMEs) represent the inherited metabolic disorders (IMDs) in which epilepsy is a prevailing component, often determining other neurodevelopmental outcomes associated with the disorder. The different metabolic pathways affected by individual IMEs are the basis of their rarity and heterogeneity.
Itay Tokatly Latzer, Phillip L. Pearl
wiley   +1 more source

FIGO good practice recommendations on anemia in pregnancy, to reduce the incidence and impact of postpartum hemorrhage (PPH)

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Anemia affects 32 million pregnant women globally, contributing annually to more than 115 000 maternal deaths and 591 000 perinatal deaths worldwide. Low‐ and middle‐income countries (LMICs) bear the highest burden of anemia in pregnancy, with nearly 50% of affected pregnant women. It is now 2025, which is WHO's target year for a 50% reduction
Akaninyene E. Ubom, Ferdousi Begum, Diana Ramasauskaite, Albaro J. Nieto‐Calvache, Monica Oguttu, Inês Nunes, Zechariah J. Malel, Jolly Beyeza‐Kashesya, Alison Wright, on behalf of the FIGO Committee on Childbirth and Postpartum Hemorrhage   +9 more
wiley   +1 more source

The relationship between exacerbated diabetic peripheral neuropathy and metformin treatment in type 2 diabetes mellitus

Scientific Reports, 2021
Metformin-treated diabetics (MTD) showed a decrease in cobalamin, a rise in homocysteine, and methylmalonic acid, leading to accentuated diabetic peripheral neuropathy (DPN). This study aimed to determine whether or not metformin is a risk factor for DPN.
Manal Mohammed Hashem, Ahmed Esmael, Abdelfattah Kasem Nassar, Mohammed El-Sherif   +3 more
doaj   +1 more source

Accessing the impact of harvest weights of Tenebrio molitor on amino acid digestibility and metabolizable energy in cecectomized laying hens

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND The effects of harvest weights on composition, amino acid (AA) digestibility and metabolizable energy (MEN) of Tenebrio molitor (TM) were investigated using cecectomized laying hens. The partially defatted and dried TM variants comprised median individual frass‐free harvest weights of 60, 80, 100, and 120 mg of larvae, and a pupae ...
Adewunmi Omotoso, Elena Werner, Nils Hautkapp, Markus Rodehutscord, Wolfgang Siegert   +4 more
wiley   +1 more source