Results 71 to 80 of about 11,589 (292)

A highly toxic morphine-3-glucuronide derivative

Bioorganic & Medicinal Chemistry Letters, 2004
By the coupling of octylamine to the uronic acid function of morphine-3-glucuronide (M3G) a new glycoconjugate (morphine-3-octylglucuronamide, M3GOAM) was prepared. When assayed in both rats and mice up to ng/kg (i.p.) doses none of the animals survived. The aliphatic octyl chain may be the lethal factor since a closely related derivative (M3GNH2), was
Salvatella, Mariona, Arsequell, Gemma, Valencia Parera, Gregorio, Rodríguez, Raquel E.   +3 more
openaire   +3 more sources

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

Investigation of the In Vitro and In Vivo Metabolism and μ‐Opioid Receptor Affinity of the Nitazene N‐Pyrrolidino Fluetonitazene

Drug Testing and Analysis, EarlyView.
Eight metabolites for N‐pyrrolidino fluetonitazene were identified in vitro, three of which (M2, M6 and M8) were present in an authentic urine sample. M2 was the most abundant in vivo metabolite and is a common marker metabolite of nitazepyne‐type substances.
Severin Zemp, Gaia Alluisetti, Wolfgang Weinmann, Bettina Schrag, Frank Sporkert, Maurine Leclerc, Katharina Elisabeth Grafinger   +6 more
wiley   +1 more source

The central nervous system depressant activities of Mycotoxin MT81 and its Acetylated and Benzoylated analogues [PDF]

Al Ameen Journal of Medical Sciences, 2008
Mycotoxin MT81 isolated from Penicillium nigricans and its two structural derivatives viz. Acetylated MT81 (AcMT81) and Benzoylated MT81 (BzMT81) show antimicrobial activities as well as cause hepatotoxicity and nephrotoxicity.
Sujata Maiti Choudhury
doaj  

Exploring Cerumen as an Alternative Matrix for Drug Detection and Quantification: Method Development and Application in Clinical Samples

Drug Testing and Analysis, EarlyView.
An LC–MS/MS method was developed for the detection of 33 psychoactive medications in cerumen (earwax) and applied to the samples of 60 psychiatric inpatient volunteers. The findings highlighted the utility of cerumen as an innovative biospecimen in clinical toxicological analysis.
Dimitrios Phaedon Kevrekidis, Helen G. Gika, Georgios Panagiotoglou, Eleni Parlapani, Pavlos Pavlidis, Nikolaos Raikos   +5 more
wiley   +1 more source

Laser neoureterocystostomy to treat ectopic ureters

Equine Veterinary Journal, EarlyView.
Abstract Background Ureteral ectopia is an uncommon but clinically important congenital abnormality in horses. If left untreated, it can lead to persistent dermatitis, urinary tract infections, and failure to thrive. Surgical correction is necessary, but traditional approaches have produced mixed results with high morbidity.
Caitlin Smith, Eric J. Parente
wiley   +1 more source

Morphine alkaloid metabolism in bacteria [PDF]

, 2016
Morphine alkaloids and their derivatives are pharmaceutically important substances. Huge production and consumption of these compounds predetermines them to be significant pollutants in the environment.
Zahradník, Jiří
core  

Opioid Crisis—An Emphasis on Fentanyl Analogs

Brain Sciences, 2020
Opioids are the mainstay for the management of moderate to severe pain. However, their acute use is associated with several side effects, ranging from nausea, itching, sedation, hypotension to respiratory depression, and death. Also, chronic use of these
Kabirullah Lutfy
doaj   +1 more source

Next‐Generation Surgery: Integrating Artificial Intelligence, Genetic Technologies, Bioengineering and Rehabilitation Into Modern Practices

Exploration, EarlyView.
This graphic abstract depicts the convergence of artificial intelligence, genetic technologies, bioengineering, and rehabilitation as the core pillars of next‐generation surgery. These domains collectively enhance preoperative planning, intraoperative precision, tissue reconstruction, and postoperative recovery, driving a paradigm shift toward ...
Dengxiong Li, Jie Wang, Zhipeng Wang, Ruicheng Wu, Zhouting Tuo, Fanglin Shao, Wenjing Ge, Ziyu Shu, Yubo Yang, Dilinaer Wusiman, Qingxin Yu, Luxia Ye, Alisha Pati‐Alam, Facai Zhang, Koo Han Yoo, Susan Heavey, William C. Cho, Dechao Feng   +17 more
wiley   +1 more source

Membranous dysmenorrhea and decidual casts: A scoping review

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Background Membranous dysmenorrhea, characterized by the expulsion of intact endometrial tissue rather than gradual dissolution during menstruation, occasionally presents as a decidual cast—a complete triangular mold of the uterine cavity. This poorly understood condition is likely underdiagnosed.
Lovisa Brehmer, Hedvig Engberg
wiley   +1 more source