Five alkaloids, including two previously undescribed alkaloids, named forsyshiyanines A and B, attributable to the rare skeletons 4b,5,6,7,8,8a,9,10-octahydrobenzo[f]quinoline and (6,7-dihydro-5H-cyclopenta[c]pyridin-7-yl)methyl, respectively, along with three known ones (3-5), were isolated from the ripe fruits of Forsythia suspensa. The chemical structures including absolute configurations of two undescribed compounds were established using integrated spectroscopic techniques, electronic circular dichroism calculations, and single-crystal x-ray diffraction analysis. In vitro, five alkaloids showed anti-inflammatory activities, with the inhibition rates of the release of β-glucuronidase from polymorphonuclear leukocytes of rats being in the range 47.9%-56.0% at a concentration of 10 μM. Moreover, five compounds exhibited anti-viral activities against influenza A virus and respiratory syncytial virus, with IC values in the range of 7.3-32.5 μM and EC values in the range 3.7-14.1 μM.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.phytochem.2021.112739 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Surgical excision of symptomatic lateral band snapping syndrome in small finger proximal interphalangeal joint.
BMJ Case Rep
January 2025
Orthopedic Surgery, OhioHealth, Columbus, Ohio, USA.
Lateral band snapping syndrome can be a debilitating condition involving the proximal interphalangeal (PIP) joint of the fingers. Although rare, it is thought to occur due to disruption of the finger extensor mechanism allowing inappropriate subluxation of the lateral bands over the PIP joint, leading to mechanical and painful symptoms.Here, we describe a woman in her early 40s with a painful, snapping PIP joint secondary to a work-related injury.
View Article and Find Full Text PDFDelta large-channel endoscopy versus unilateral biportal endoscopy decompressive laminectomy for lumbar spinal stenosis: a prospective randomized controlled trial.
J Orthop Surg Res
January 2025
Center of Medical Genetics, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
Background: Delta large-channel endoscopy and unilateral biportal endoscopy (UBE) are prominent minimally invasive techniques for treating lumbar spinal stenosis, known for minimal tissue damage, clear visualization, and quick recovery. However, rigorous controlled research comparing these procedures is scarce, necessitating further investigation into their respective complications and long-term effectiveness. This randomized controlled trial aims to compare their perioperative outcomes, focusing on postoperative recovery and complications over time.
View Article and Find Full Text PDFThrough-tunnel reconstruction with Ligament Augmentation and Reconstruction System (LARS) for managing post-arthroplasty patellofemoral instability.
BMC Musculoskelet Disord
January 2025
Division of Orthopedic Surgery, Changhua Christian Hospital, Changhua, Taiwan.
Background: Despite advancements in prosthetic designs and surgical techniques, patellar dislocation remains a rare but significant complication following total knee arthroplasty, with an incidence ranging between 0.15% and 0.5%.
View Article and Find Full Text PDFThe Management of Bone Defects in Rett Syndrome.
Calcif Tissue Int
January 2025
Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
Rett syndrome (RS) is a rare neurodevelopmental disorder primarily caused by mutations in the X-linked methyl-CpG binding protein 2 (MECP2) gene, responsible for encoding MECP2 which plays a pivotal role in regulating gene expression. The neurological and non-neurological manifestations of RS vary widely in severity depending on the specific mutation type. Bone complications, mostly scoliosis but also osteoporosis, hip displacement, and a high rate of fractures, are among the most prevalent non-neurological comorbidities observed in girls with RS.
View Article and Find Full Text PDFPostpartum Septic Osteoarthritis: A case series study.
Tunis Med
December 2024
University of Sousse, Faculty of Medicine of Ibn ElJazzar Sousse, 4002, Farhat Hached university Hôpital, Service of rheumatology, 4031, Sousse, Tunisia.
Introduction-Aim: Postpartum septic osteoarthritis is a rare but serious condition often misdiagnosed due to overlap with common postpartum symptoms like pelvic pain and joint stiffness. This case series aims to describe the clinical, bacteriological, and radiological characteristics of postpartum septic osteoarthritis, as well as the treatment approaches and patient outcomes. Methods: A retrospective case series was conducted at Farhat Hached University Hospital, from 2006 to 2022, involving patients with confirmed postpartum septic osteoarthritis.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!