The studied extract of Rhodiola rosea exhibited significant analgesic activity in all the pain models used--inhibition of thermal pain, mechanical hyperalgesia and formalin-induced pain behavior. Significant anti-inflammatory activity was observed from Rhodiola rosea extract in carrageenan induced paw edema in rats.
Introduction: The Ginkgo biloba L. tree is considered as one of the oldest species on Earth. It is known as a “living fossil” dating back approximately 200 million years. Both the leaves and seeds of this tree have been used for millennia in traditional Chinese medicine. Aim: To study the phytochemical profile of Gingko biloba seed extract (GBSE) and its memory enhancing effects. Materials and methods: Liquid chromatography with mass detection (LC-MS) was performed for phytochemical analyses of the extracts. For the in vivo experiments, male Wistar rats were divided randomly into 5 groups (n=8): saline; piracetam; GBSE 50; 100, and 200 mg/kg b.w. Y-maze, T-maze, step-down passive avoidance and novel object recognition test (NORT) were performed. The observed parameters were: percentage of spontaneous alternations (% SA), working memory index, latency of reaction and recognition index, respectively. Statistical analysis was done using SPSS 19. Results: LC-MS analysis showed the presence of the flavonoids quercetin, kaempferol and isorhamnetin (as aglycones), the ginkgolides A, B, C, J, and bilobalide. In Y-maze task, the groups treated with 50 and 100 mg/kg of GBSE significantly increased the % SA during the memory test compared to saline (p<0.05). In T-maze test, the three experimental groups with GBSE significantly increased the working memory index in comparison with that of the control group (p<0.05). In step-down test, the animals receiving 100 mg/kg b.w. GBSE, notably increased the latency during both retention tests (p<0.05 and p<0.01, respectively). In NORT, only the animals with the middle dose of GBSE ameliorated the recognition index when compared to saline (p<0.05). Conclusions: GBSE enhances spatial working memory, recognition memory, and short- and long-term recall in naïve rats due to the synergic effects of detected flavonoids and terpene lactones on brain functions. The brain structures involved are probably the hippocampus and prefrontal cortex.
The study revealed that there was a statistically significant difference in 95% of the cases between anger, hostility in patients with diabetes, hypertension and musculoskeletal disorders. The highest levels of physical aggression were observed in patients with arterial hypertension, M = 17.32 ± 0.86. The highest average levels of verbal aggression were observed in patients with diabetes, M = 15.24 ± 0.64. The highest levels of anger were observed with patients with hypertension, M = 17.96 ± 0.90, and hostility - in patients with hypertension, M = 19.15 ± 0.86. The comparison between the four Aggression Questionnaire scales showed statistically significant differences between the patients with musculoskeletal disorders and the ones with hypertension and diabetes.
AIm was to study the effects of lamotrigine on bicuculline and pentylenetetrazol models of epilepsy. mAterIAl And methods: Mice divided in 8 groups (n = 6) were pretreated intraperitoneally 30 min before pentylenetetrazol (50 mg/kg) or bicuculline (1 mg/kg) with saline 0.1ml/10 g body weight or lamotrigine 10 mg/kg, 15 mg/kg or 20 mg/kg, respectively. The seizure intensity and latency to the seizures 60 min after bicuculline or pentylenetetrazol injection were observed. The following scale for seizure intensity was used: 1-excitation; 2-body tremor; 3-clonic seizures of forelimbs; 4-heavy clonic seizures with rotations; 5-tonic seizures of forelimbs; 6-tonic seizures of limbs. results: The controls showed bicuculline-induced seizure intensity up to 5. lamotrigine in the higher doses used decreased the seizure intensity (p < 0.05). lamotrigine in all doses studied did not change the latency period of the first bicuculline seizure compared with the control. controls treated with pentylenetetrazol showed seizure intensity up to 4. lamotrigine in the highest dose decreased the pentylenetetrazol-induced seizure intensity (p < 0.05). lamotrigine in all studied doses increased the latency to the first pentylenetetrazol-induced seizure compared with the controls (p < 0.05). both convulsing drugs influence the brain gAbA-ergic transmitter system by competitively blocking gAbA A receptors. lamotrigine inhibits glutamate transmission and sodium channels. both neurotransmissions-glutamate and gaba are closely related in seizure control. the conclusIon is that lamotrigine has an anticonvulsive effect on both bicuculline and pentylenetetrazol seizure models, suppressing seizure intensity and influencing the latency to the first seizure.
Premature birth is a serious medical, social and economic problem. Its consequences are multiple health complications leading to high neonatal mortality worldwide. Respiratory insufficiency and surfactant deficiency significantly increase the risk of developing Hyaline Membrane Disease (HMD) and other forms of Respiratory Distress (RDS). These are the most common causes of death in premature babies. In prenatal and neonatal medicine, new and adaptive prophylaxis is being implemented to reduce the risk of death of premature babies and reduce the development of health complications. The goal of effective corticosteroid prophylaxis is to reduce mortality, reduce complications in prenatal new-borns, and shorten their stay in neonatal and intensive units respectively. A retrospective study of 167 preterm infants was conducted, of which 89 (53.3%) had prophylaxis with dexamethasone. In 25 (15%) of preterm infants, there was a Hyaline Membrane Disease (HMD) and 101 (60.5%) developed other forms of Respiratory Distress Syndrome (RDS). The results obtained show that the incidence of HMD in preterm infants is mediated by the early gestational age and advanced age of the mother, and decreased by corticosteroid therapy.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.