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Schizophrenia-associated gut microbiota are linked to reduced colonic PRODH expression and behavioral changes in mice [PDF]

open access: yesGut Microbes
Schizophrenia (SCZ) is a chronic neuropsychiatric disorder whose biological basis remains incompletely understood. Growing evidence implicates the gut–brain axis in SCZ, but the host pathways through which disease-associated microbiota may influence ...
Keontae Park   +13 more
doaj   +2 more sources

Emerging Roles of De Novo Proline Biosynthesis in Human Diseases [PDF]

open access: yesFASEB BioAdvances, Volume 7, Issue 11, November 2025.
De novo proline synthesis, a multi‐step biochemical pathway starting from glutamate, supplies essential protein building blocks. It supports redox balance, cell proliferation, signal transduction, and nucleotide and protein biosynthesis. This tightly regulated pathway, governed by conserved mechanisms, is disrupted in diseases such as cancer and ...
Ethan Pei, Junfeng Ma
wiley   +2 more sources

A short peptide derived from late embryogenesis abundant proteins enhances acid tolerance in Escherichia coli via modulation of two‐component regulatory systems

open access: yesThe FEBS Journal, Volume 293, Issue 3, Page 781-805, February 2026.
Expression of the LEA‐K peptide in E. coli BL21 (DE3) improved bacterial viability under acidic stress (pH4), suggesting a protective function. RNA‐sequencing of LEA‐K‐expressing vs. non‐expressing cells revealed 283 differentially expressed genes (DEGs). In silico docking linked LEA‐K to two‐component systems (TCS) proteins (Rcs, BtsS/R, and EnvZ/OmpR)
Khaled Metwally, Shinya Ikeno
wiley   +1 more source

Life Factors and Melanoma: From the Macroscopic State to the Molecular Mechanism

open access: yesAdvanced Science, Volume 12, Issue 43, November 20, 2025.
Melanoma, an aggressive skin cancer, arises from dynamic interactions between genetic, environmental, and lifestyle factors. This review explores how age, gender, obesity, diet, exercise, smoking, alcohol, UV exposure, circadian rhythms, and medications influence melanoma risk and progression.
Hanbin Wang   +4 more
wiley   +1 more source

Proline Metabolism of Different Varieties of Hami Melon Fruits in Response to Low Temperature [PDF]

open access: yesShipin Kexue
In order to investigate the change in proline metabolism of two varieties of Hami melon fruits during low-temperature storage, ‘Xizhoumi 25’ and ‘Gashi’ melons were pre-cooled for 24 h and then placed for up to 42 days in a mechanical cold storage at (3 ...
BI Ying, WANG Xinyu, LI Hui, HUANG Shuai, ZHANG Qi, LEI Yaxin, WANG Xue, WANG Fuxin, XU Wenchang, WANG Jing
doaj   +1 more source

Screening and characterization of proline dehydrogenase flavoenzyme producing Pseudomonas entomophila

open access: yesIranian Journal of Microbiology, 2011
Background and Objectives: Proline dehydrogenase (ProDH; 1.5.99.8) plays an important role in specific determination of plasma proline level in biosensor and diagnostic kits.
H Shahbaz- Mohammadi, E Omidinia
doaj  

Molecular and cellular mechanisms underlying gyrate atrophy: Why is the retina primarily affected?

open access: yesActa Ophthalmologica, Volume 103, Issue 7, Page e436-e455, November 2025.
Abstract Gyrate atrophy of the choroid and retina (GACR; OMIM #258870) is a rare early‐onset autosomal recessive disorder, caused by bi‐allelic pathogenic variants in the gene coding for ornithine aminotransferase (OAT) resulting in hyperornithinaemia.
Mark J. N. Buijs   +12 more
wiley   +1 more source

Disruption of the Prolidase–Proline–PRODH Axis and Oxidative Stress in Schizophrenia

open access: yesVan Tıp Dergisi
INTRODUCTION: This study aimed to investigate serum levels of proline, prolidase, proline dehydrogenase (PRODH), and reactive oxygen species (ROS) in patients with schizophrenia and healthy controls, to evaluate potential differences between groups and ...
Mehmet Güneş   +5 more
doaj   +1 more source

The loss of the urea cycle and ornithine metabolism in different insect orders: An omics approach

open access: yesInsect Molecular Biology, Volume 34, Issue 5, Page 632-644, October 2025.
Among urea cycle enzymes, only the nitric oxide synthase gene is universally present across insect genomes. All Hemiptera species lack the enzymes needed to convert citrulline to arginine, and some also lack the pathway from arginine to ornithine. Putrescine and spermidine synthesis is conserved in all insects, but aphids lack the capability to produce
Jessica Cristina Silva Martins   +7 more
wiley   +1 more source

Proline Protects Boar Sperm against Oxidative Stress through Proline Dehydrogenase-Mediated Metabolism and the Amine Structure of Pyrrolidine

open access: yesAnimals, 2020
Proline was reported to improve sperm quality in rams, stallions, cynomolgus monkeys, donkeys, and canines during cryopreservation. However, the underlying mechanism remains unclear.
Chengwen Feng   +9 more
doaj   +1 more source

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