Results 51 to 60 of about 112,574 (220)

Opioid receptors in cardiovascular function

British Journal of Pharmacology, Volume 182, Issue 16, Page 3710-3725, August 2025.
Opioid receptors are G protein‐coupled receptors expressed by various cells in the heart, including myocytes and nerve fibres, and play a crucial role in modulating cardiac function. These receptors influence neural transmission, heart rate and myocyte contractility, offering cardioprotection.
Venkatesh Katari, Kesha K. Dalal, Narendra Kondapalli, Sailaja Paruchuri, Charles K. Thodeti   +4 more
wiley   +1 more source

Pro-opiomelanocortin co-localizes with corticotropin-releasing factor in axon terminals of the noradrenergic nucleus locus coeruleus [PDF]

, 2006
We previously demonstrated that the opioid peptide, enkephalin, and corticotropin-releasing factor (CRF) are occasionally co-localized in individual axon terminals but more frequently converge on common dendrites in the locus coeruleus (LC).
Glaser, Julia D., Magtoto, Ronaldo, Reyes, Beverly A.S., van Bockstaele, Elisabeth K.   +3 more
core   +2 more sources

Hyperpolarization Modulation of the T‐Type hCav3.2 Channel by Human Synenkephalin [1–53], a Shrew Neurotoxin Analogue without Paralytic Effects

Angewandte Chemie, Volume 137, Issue 27, July 1, 2025.
Human synenkephalin [1–53] (hSYN), an analogue peptide of shrew saliva neurotoxins, was synthesized and its structural characteristics studied. Synthetic hSYN potently activated the T‐type voltage‐gated Ca channel hCav3.2 but did not paralyze mealworms. These findings offer new insight into neurological disorder treatment and evolutionary mechanisms of
Ryo Fukuoka, Yusuke Yano, Nozomi Hara, Chihiro Sadamoto, Andres D. Maturana, Masaki Kita   +5 more
wiley   +1 more source

Kinetics of chymotrypsin- and papain-catalysed synthesis of [leucine]enkephalin and [methionine]enkephalin [PDF]

Biochemical Journal, 1984
The proteinase-catalysed synthesis of [Leu]enkephalin and [Met]enkephalin was studied kinetically. N alpha-t-Butoxycarbonyl-amino acids and peptides or their ethyl esters served as acyl donors, and amino acid phenylhydrazides were used as acyl acceptors.
openaire   +3 more sources

Neurotrophic factors and corneal nerve regeneration [PDF]

, 2017
The cornea has unique features that make it a useful model for regenerative medicine studies. It is an avascular, transparent, densely innervated tissue and any pathological changes can be easily detected by slit lamp examination.
Lambiase, Alessandro, Sacchetti, Marta
core   +2 more sources

Multi‐Omics Analyses on Maya‐Land Tomatoes Shed Light on Plant Strategies to Thrive in High Temperatures

Physiologia Plantarum, Volume 177, Issue 4, July/August 2025.
ABSTRACT Heat stress limits tomato yield and quality. Deciphering the key genes and metabolites related to heat tolerance is essential for selecting tolerant varieties. In this study, we profiled the transcriptomes and metabolomes of roots and shoots in response to heat stress from a Maya‐land ecotype of heirloom tomato (Calkiní), which grows in ...
Luis F. Maceda‐López, Annie Espinal‐Centeno, Jose Juan Ordaz‐Ortiz, Alfredo Cruz‐Ramírez   +3 more
wiley   +1 more source

Placenta ingestion by rats enhances d- and k-opioid antinociception, but suppresses m-opioid antinociception [PDF]

, 2004
Ingestion of placenta or amniotic fluid produces a dramatic enhancement of centrally mediated opioid antinociception in the rat. The present experiments investigated the role of each opioid receptor type (m, d, k) in the antinociception-modulating ...
DiPirro, Jean M., Kristal, Dr. Mark B.
core  

Discovery, Herbicidal Activity and Biosynthesis of a Novel Natural Tetramic Acid from Alternaria Species

Advanced Science, Volume 12, Issue 21, June 5, 2025.
The biosynthetic mechanism of novel natural tetramic acid S‐TeA in Alternaria alternata is elucidated. Threonine acts as a precursor for 2‐amino‐3‐methylhexanoic acid (AMHA) synthesis via eight key enzymes from the branched‐chain amino acid biosynthetic pathway in the mitochondrion, wherein three unique enzymes (IPMS, IPMDH, and ISMD) play critical ...
He Wang, Yanjing Guo, Qing Liu, Jing Zhang, Qianlong Zhang, Mingying Yang, Qizhen Chen, Sheng Qiang, Bernal E. Valverde, Shiguo Chen   +9 more
wiley   +1 more source

Methionine enkephalin (MENK) protected macrophages from ferroptosis by downregulating HMOX1 and ferritin

Proteome Science
Objective The aim of this work was to investigate the immunological effect of MENK by analyzing the protein spectrum and bioinformatics of macrophage RAW264.7, and to explore the relationship between macrophage and ferroptosis.
Jing Tian, Wenrui Fu, Zifeng Xie, Yuanlong Zhao, Haochen Yang, Jiafan Zhao   +5 more
doaj   +1 more source

Rational Design of Single‐Domain Antibodies Targeting the Central Nervous System Neurite Outgrowth Inhibitor Nogo‐A

Applied Research, Volume 4, Issue 3, June 2025.
The development of a nanobody for Nogo‐A, a potent neurite outgrowth inhibitor crucial in multiple sclerosis, is reported using a rational design approach. The nanobody targets the Nogo‐A ectodomain at the S1PR2 receptor‐binding region with submicromolar KD.
Vaidehi Roy Chowdhury, Alexander Röntgen, Matthew Greenig, Yanira Méndez Gómez, Sebastian P. Spiegel, Magdalena Nowinska, Aubin Ramon, Pietro Sormanni, Andrew Chan, Michele Vendruscolo   +9 more
wiley   +1 more source