Results 51 to 60 of about 8,125 (179)

Immunohistochemical distribution of dynorphin B in rat brain: relation to dynorphin A and alpha-neo-endorphin systems. [PDF]

Proceedings of the National Academy of Sciences, 1983
A specific antiserum was prepared against dynorphin B, an endogenous opioid peptide contained in a recently isolated 4,000-dalton dynorphin. The antiserum did not crossreact with dynorphin A, alpha-neo-endorphin, beta-neo-endorphin, dynorphin-(1-8), or [Leu]enkephalin.
E, Weber, J D, Barchas
openaire   +2 more sources

Unraveling Chronic Pain: From Mechanisms and Risks to Diagnosis and Treatment

MedComm, Volume 7, Issue 4, April 2026.
Chronic pain arises through distinct molecular pathways categorized into nociceptive, neuropathic, and nociplastic types. Nociceptive pain begins with TRP channel activation in peripheral nociceptors, signaling via Aδ‐ and C‐fibers through the spinal dorsal horn and spinothalamic tracts to the brain, regulated by descending inhibition and involving ...
Xiaofeng Dai, Chongxiang Wang, Ping Jiang, Xiaopeng Mei   +3 more
wiley   +1 more source

Thymosin Beta 4 Is Involved in the Development of Electroacupuncture Tolerance

Frontiers in Cellular Neuroscience, 2019
Background: Electroacupuncture (EA) tolerance, a negative therapeutic effect, is a gradual decline in antinociception because of its repeated or prolonged use.
Juan Wan, Yi Ding, Sha Nan, Qiulin Zhang, Jinrui Sun, Chuanguang Suo, Mingxing Ding   +6 more
doaj   +1 more source

Understanding cell‐penetrating peptide mechanisms using computational electrophysiology simulations

Protein Science, Volume 35, Issue 4, April 2026.
Abstract Cell‐penetrating peptides (CPPs) can enter cells without inducing cytotoxicity and can be coupled with cargo molecules to be used to deliver drugs, DNA, or nanoparticles into cells. The peptide‐membrane interactions driving the internalization mechanism are not completely understood. In this study, we introduce Computational Electrophysiology (
Eric Catalina‐Hernandez, Marcel Aguilella‐Arzo, Mario Lopez‐Martin, Alex Peralvarez‐Marin   +3 more
wiley   +1 more source

A concept for a new approach to combined oral contraception from adolescence to perimenopause: Continuous use of the oral GnRH antagonist Relugolix and the fetal estrogen Estetrol

Acta Obstetricia et Gynecologica Scandinavica, Volume 105, Issue 4, Page 568-574, April 2026.
It is expected that the relugolix estetrol combination RE4W will enable women to control their fertility and prevent menstrual cycle related problems, while offering a smooth transition through perimenopause into the postmenopause and decrease the risk of breast cancer.
Herjan J. T. Coelingh Bennink, Karolina Afors, Luis Bahamondes, Alessandra Graziottin, Deborah Bateson, Teresa Bombas, Yutaki Osuga, Santiago Palacios, Carolyn L. Westhoff, Kristina Gemzell‐Danielsson   +9 more
wiley   +1 more source

Epigenetic mechanisms and therapeutic innovations in chronic pain‐associated neuropsychiatric co‐morbidities

British Journal of Pharmacology, Volume 183, Issue 7, Page 1313-1340, April 2026.
Abstract Chronic pain, marked by nociceptive sensitization and maladaptive neuroplasticity, affects 30% of the global population with escalating socioeconomic burdens. Epidemiological data show a 2‐3‐fold increase in neuropsychiatric co‐morbidities among individuals with chronic pain, where epigenetic dysregulation serves as a key mechanism linking ...
Kai Zhang, Sijia Zhu, Na Xing, Zhen Zhou, Jiayi Chen, Tianen Si, Mingrui Li, Lin Jia, Yousef Rastegar‐Kashkooli, Tom J. Wang, Wei Zhu, Jing Li, Chao Jiang, Junmin Wang, Moxin Wu, Xiaoping Yin, Weidong Zang, Jian Wang, Songxue Su   +18 more
wiley   +1 more source

High-frequency stimulation-induced peptide release synchronizes arcuate kisspeptin neurons and excites GnRH neurons

eLife, 2016
Kisspeptin (Kiss1) and neurokinin B (NKB) neurocircuits are essential for pubertal development and fertility. Kisspeptin neurons in the hypothalamic arcuate nucleus (Kiss1ARH) co-express Kiss1, NKB, dynorphin and glutamate and are postulated to provide ...
Jian Qiu, Casey C Nestor, Chunguang Zhang, Stephanie L Padilla, Richard D Palmiter, Martin J Kelly, Oline K Rønnekleiv   +6 more
doaj   +1 more source

GABA receptor modulation of arcuate kisspeptin neuron bursting and synchronization activity in female mice

Journal of Neuroendocrinology, Volume 38, Issue 4, April 2026.
Abstract The arcuate nucleus kisspeptin (ARNKISS) neurons intermittently synchronize their activity to operate as the GnRH pulse generator and drive pulsatile reproductive hormone secretion in mammals. Although ARNKISS neurons are known to receive various GABAergic inputs, the effects of GABAA and GABAB receptor modulation on their ability to ...
Toby Eddleston, Paul G. Morris, Allan E. Herbison   +2 more
wiley   +1 more source

Contemporary and Emerging Therapies in the Management of Refractory Angina: A Clinical Review

Catheterization and Cardiovascular Interventions, Volume 107, Issue 4, Page 869-884, March 1, 2026.
ABSTRACT Refractory angina (RA) represents a growing challenge in clinical cardiology, particularly in patients with obstructive coronary artery disease (CAD) who remain symptomatic despite optimal medical therapy and who are not candidates for revascularization.
Alex Angers‐Goulet, Siddhartha Mengi, David Garcia Labbé, Can Manh Nguyen, Jean‐Michel Paradis   +4 more
wiley   +1 more source

Mechanism of elevated LH/FSH ratio in lean PCOS revisited: a path analysis

Scientific Reports
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder affecting 5–20% of reproductive-age women. However, the treatment of PCOS is mainly based on symptoms and not on its pathophysiology.
Gita Pratama, Budi Wiweko, Asmarinah, Indah S. Widyahening, Trinovita Andraini, Hartanto Bayuaji, Andon Hestiantoro   +6 more
doaj   +1 more source