Results 61 to 70 of about 33,193 (249)

Assessment of Abuse Potential‐Related Effects of Oral Dried Kratom Leaf Powder in Healthy Normal Participants Following Single and Multiple Daily Doses

Drug Testing and Analysis, EarlyView.
In a randomized, double‐blind, placebo‐controlled study of oral dried kratom leaf powder in healthy kratom‐naive adults, no participants met the clinically meaningful opioid withdrawal threshold; abuse‐related treatment‐emergent adverse events occurred more frequently at higher doses but were generally mild and resolved without sequelae; and no serious
Marion Coe, Marilyn Huestis, Daniel Wang, Thomas Hudzik, John Bothmer, Jack Henningfield   +5 more
wiley   +1 more source

Implantable drug delivery system: Frontiers of medicine‐engineering interdisciplinary

Interdisciplinary Medicine, EarlyView.
This review systematically summarizes the driving mechanisms of implantable on‐demand drug delivery systems (IDDS), including endogenous, exogenous, and closed‐loop strategies. It highlights the pivotal roles of flexible electronics and miniaturization in enhancing the tissue conformity and spatial adaptability.
Yu Zeng, Rongtai Su, Manyu Zhao, Xin Song, Ran Liu, Yuhao Zhou, Chaojuan Yang, Yanli Jiao, Xiao‐Wei Xiang, Lingqian Chang   +9 more
wiley   +1 more source

Failure of Intravenous Morphine to Serve as an Effective Instrumental Reinforcer in Dopamine D2 Receptor Knock-Out Mice [PDF]

, 2002
The rewarding effects of opiates are thought to be mediated through dopaminergic mechanisms in the ventral tegmental area, dopamine-independent mechanisms in the nucleus accumbens, or both. The purpose of the present study was to explore the contribution
Elmer, Greg I., Grandy, David K., Low, Malcolm J., Pieper, Jeanne O., Rubinstein, Marcelo, Wise, Roy A.   +5 more
core   +1 more source

Osteoarthritis: An Immuno‐Inflammatory Disease‐Mechanisms of Immune Cell Dysregulation and Potential Therapeutic Strategies

Med Research, EarlyView.
This review summarizes the immuno‐inflammatory mechanisms driving the pathogenesis of osteoarthritis (OA), extending beyond the traditional view of OA as a purely degenerative disease to incorporate immune cell infiltration, inflammatory factor release, and the formation of a chronic low‐grade inflammatory microenvironment.
Qingqiang Lei, Xiaoxian Lou, Xu Su, Shubao Liu, Yanli Tong, Jie Chen, Xuerui Chen, Wenjun Mao, Hui Yu, Liangbin Lin   +9 more
wiley   +1 more source

A Novel Multi-Target Mu/Delta Opioid Receptor Agonist, HAGD, Produced Potent Peripheral Antinociception with Limited Side Effects in Mice and Minimal Impact on Human Sperm Motility In Vitro

Molecules, 2023
Pain is a common clinical symptom among patients. Although various opioid analgesics have been developed, their side effects hinder their application. This study aimed to develop a novel opioid analgesic, HAGD (H-Tyr-D-AIa-GIy-Phe-NH2), with limited side
Fangfang Li, Feng Yue, Wei Zhang, Biao Xu, Yiqing Wang, Xuehong Zhang   +5 more
doaj   +1 more source

Antinociceptív neurotranszmitterek / modulátorok hatásmechanizmusa: homológ és heterológ receptor kölcsönhatások vizsgálata és új, endogén peptid-kötőhelyek azonosítása = Neurochemical studies on neurotransmitters in pain regulation: identification of novel peptide binding sites and investigation of homologous and heterologous receptor interactions [PDF]

, 2008
Az antinocicepcióban kulcsszerepet játszó mu opioid receptor endogén ligandumának tekintett endomorfinok (1 és 2) kötőhelyeit karakterizáltuk biokémiai és autoradiográfiás módszerekkel.
Borsodi, Anna, Ioja, Eniko, Magyar, Anna, Sántha, Miklós, Tóth, Fanni, Wenger, Tibor, Özge, Gündüz   +6 more
core  

Review: "The Disappointment Dilemma: Short- and Long-Term Learning From Negative Outcomes". [PDF]

Eur J Neurosci
The habenula routes negative‐outcome signals to VTA, RMTg, and IPN to shape aversive learning and motivation. The lateral habenula encodes acute negative prediction errors to rapidly adapt behavior to threat, fear, and avoidance. The medial habenula integrates repeated stress, drug, and aversive experiences into long‐term negative mood and expectations.
Ibañez-Tallon I, Molas S, Proulx CD, Piriz J, Soria-Gómez E.   +4 more
europepmc   +2 more sources

Impact of Institutional Protocol on Urinary Catheter Outcome Measures in Orthopedic Children Treated With Epidural Analgesia

Pediatric Anesthesia, EarlyView.
ABSTRACT Background Epidural analgesia is commonly used for pain control after major lower‐limb orthopedic surgery in children, but it is associated with a risk of postoperative urinary retention. Consequently, urinary catheters are often placed and left in situ for the full duration of epidural analgesia, despite the potential risks of prolonged ...
Idan Katz, Tomer Talmy, Dor Barami, Tal S. Beckmann, Barry Danino, Yotam Lior, Margaret Ekstein   +6 more
wiley   +1 more source

CB1 Agonism Alters Addiction-Related Behaviors in Mice Lacking Mu or Delta Opioid Receptors

Frontiers in Psychiatry, 2018
Opioids are powerful analgesics but the clinical utility of these compounds is reduced by aversive outcomes, including the development of affective and substance use disorders.
Laurie-Anne Roeckel, Dominique Massotte, Mary C. Olmstead, Katia Befort   +3 more
doaj   +1 more source

A Background of the Opioid Epidemic and Its Relationship to the Medicaid Expansion [PDF]

, 2019
Despite the recent increase in public awareness of the opioid epidemic, the background of this epidemic is still disappointingly unknown to the public.
Jang, Er Yearn
core   +2 more sources