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https://www.readbyqxmd.com/read/28642670/ginkgo-biloba-improves-bone-formation-during-fracture-healing-an-experimental-study-in-rats
#1
Nizamettin Guzel, Emrah Sayit, Osman Aynaci, Servet Kerimoglu, Esin Yulug, Murat Topbas
OBJECTIVES: Ginkgo biloba extract (EGb 761) is a plant extract obtained from the leaves of the G. biloba tree. The aim of this study was to assess the histological and radiological effects of G. biloba extract on fracture healing in an experimental fracture model using rat femurs. METHODS: Forty-eight female Sprague-Dawley rats (weight: 195-252 g; age: 20 weeks) were used in the study. The rats were randomly divided into six groups (n=8). A transverse fracture was made in the middle of the right femur of each rat and fixed with a Kirschner wire...
May 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28639555/ginkgo-biloba-and-lycopene-are-effective-on-cisplatin-induced-ototoxicity
#2
Erkan Esen, Fatih Özdoğan, Seren Gülşen Gürgen, Halil Erdem Özel, Serdar Başer, Selahattin Genç, Adin Selçuk
OBJECTIVE: The purpose of this study was to examine the anti-ototoxic impact of Ginkgo biloba extract and lycopene on the model of cisplatin-induced ototoxicity in rats. MATERIALS AND METHODS: Thirty-two Wistar albino rats were examined with the distortion product otoacoustic emission (DPOAE) test (MADSEN Capella2 ; GN Otometrics, ICS Medical, Chicago USA), and they were randomly divided into four groups. Group 1 (n=8) was defined as the healthy control group. Cisplatin was given intraperitoneally as single dose of 12 mg/kg to group 2 (n=8), group 3 (n=8), and group 4 (n=8)...
June 21, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28622621/development-of-an-ultra-fast-liquid-chromatography-tandem-mass-spectrometry-method-for-simultaneous-determination-of-seven-flavonoids-in-rat-plasma-application-to-a-comparative-pharmacokinetic-investigation-of-ginkgo-biloba-extract-and-single-pure-ginkgo-flavonoids
#3
Tianyang Wang, Jie Xiao, Huiping Hou, Pei Li, Ziyue Yuan, Huarong Xu, Ran Liu, Qing Li, Kaishun Bi
For deeper pharmacokinetic investigation and further curative application of ginkgo flavonoids, a delicate, efficient and precise UFLC-MS/MS technique for synchronous quantitation of seven flavonoids, apigenin, luteolin, naringenin, quercetin, diosmetin, kaempferol and isorhamnetin in rat plasma has been established. After mixing with the internal standard (IS) linarin, bio-samples were pretreated via ethyl acetate for liquid-liquid extraction, then isolated at 0.2ml/min flow rate on a Venusil MP C18 chromatographic column (100mm×2...
May 30, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28616659/isolation-and-functional-characterization-of-a-circadian-regulated-constans-homolog-gbco-from-ginkgo-biloba
#4
Jiaping Yan, Dun Mao, Xiaomeng Liu, Lanlan Wang, Feng Xu, Guiyuan Wang, Weiwei Zhang, Yongling Liao
This is the first report to clone and functionally characterize a flowering time gene GbCO in perennial gymnosperm Ginkgo biloba. GbCO complements the co mutant of Arabidopsis, restoring normal early flowering. CONSTANS (CO) is a central regulator of photoperiod pathway, which channels inputs from light, day length, and circadian clock to promote the floral transition. In order to understand the role of CO in gymnosperm Ginkgo biloba, which has a long juvenile phase (15-20 years), a CO homolog (GbCO) was isolated and characterized from G...
June 14, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28603534/combining-metabolic-profiling-and-gene-expression-analysis-to-reveal-the-biosynthesis-site-and-transport-of-ginkgolides-in-ginkgo-biloba-l
#5
Xu Lu, Hua Yang, Xinguang Liu, Qian Shen, Ning Wang, Lian-Wen Qi, Ping Li
The most unique components of Ginkgo biloba extracts are terpene trilactones (TTLs) including ginkgolides and bilobalide. Study of TTLs biosynthesis has been stagnant in recent years. Metabolic profiling of 40 compounds, including TTLs, flavonoids, and phenolic acids, were globally analyzed in leaf, fibrous root, main root, old stem and young stem extracts of G. biloba. Most of the flavonoids were mainly distributed in the leaf and old stem. Most of phenolic acids were generally distributed among various tissues...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28591721/ginkgolide-k-attenuates-neuronal-injury-after-ischemic-stroke-by-inhibiting-mitochondrial-fission-and-gsk-3%C3%AE-dependent-increases-in-mitochondrial-membrane-permeability
#6
Xu Zhou, Hui-Ying Wang, Bin Wu, Cai-Yi Cheng, Wei Xiao, Zhen-Zhong Wang, Yu-Yu Yang, Ping Li, Hua Yang
Ginkgolide K (GK) belongs to the ginkgolide family of natural compounds found in Ginkgo biloba leaves, which have been used for centuries to treat cerebrovascular and cardiovascular diseases. We evaluated the protective effects of GK against neuronal apoptosis by assessing its ability to sustain mitochondrial integrity and function. Co-immunoprecipitation showed that Drp1 binding to GSK-3β was increased after an oxygen-glucose deprivation/reperfusion (OGD/R) insult in cultured neuroblastoma cells. This induced Drp1 and GSK-3β translocation to mitochondria and mitochondrial dysfunction, which was attenuated by GK...
May 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28564578/metabolic-profiling-of-the-hepatotoxicity-and-nephrotoxicity-of-ginkgolic-acids-in-rats-using-ultra-performance-liquid-chromatography-high-definition-mass-spectrometry
#7
Yiyun Qian, Yunru Peng, Erxin Shang, Ming Zhao, Liang Yan, Zhenhua Zhu, Jinhua Tao, Shulan Su, Sheng Guo, Jin-Ao Duan
Ginkgolic acids (GAs) are thought to be the potentially hazardous constituents corresponding to the toxic side effects of Ginkgo products. In this study, toxicological and metabolomics studies of GAs were carried out by ultra-performance liquid chromatography-high-definition mass spectrometry (UPLC-HDMS). Significant changes in serum clinical chemistry were observed in the both low (100 mg/kg) and high (900 mg/kg) doses. Especially the serum enzyme of ALT, AST, LDH, and CK decreased in treated groups. The histopathological observation demonstrated hepatic steatosis in liver and tubular vacuolar degeneration in kidney...
May 28, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28558873/mechanism-for-ginkgolic-acid-15-1-induced-mdck-cell-necrosis-mitochondria-and-lysosomes-damages-and-cell-cycle-arrest
#8
Qing-Qing Yao, Zhen-Hua Liu, Ming-Cheng Xu, Hai-Hong Hu, Hui Zhou, Hui-Di Jiang, Lu-Shan Yu, Su Zeng
Ginkgolic acids (GAs), primarily found in the leaves, nuts, and testa of ginkgo biloba, have been identified with suspected allergenic, genotoxic and cytotoxic properties. However, little information is available about GAs toxicity in kidneys and the underlying mechanism has not been thoroughly elucidated so far. Instead of GAs extract, the renal cytotoxicity of GA (15 : 1), which was isolated from the testa of Ginkgo biloba, was assessed in vitro by using MDCK cells. The action of GA (15 : 1) on cell viability was evaluated by the MTT and neutral red uptake assays...
May 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28553632/hydroquinone-a-novel-bioactive-compound-from-plant-derived-smoke-can-cue-seed-germination-of-lettuce
#9
Muhammad Kamran, Abdul L Khan, Liaqat Ali, Javid Hussain, Muhammad Waqas, Ahmed Al-Harrasi, Qari M Imran, Yoon-Ha Kim, Sang-Mo Kang, Byung-Wook Yun, In-Jung Lee
Plant-derived smoke has been known to play an important role in distribution and growth of vegetation. Using a proficiently designed furnace, we extracted smoke from the leaves of four plant viz. Helianthus annuus,Aloe vera,Ginkgo biloba, and Cymbopogon jwarancusa. Smoke dilutions obtained from these plants were obtained in different concentrations to identify potential lettuce growth promoting smoke solution. Results revealed that smoke obtained from G. biloba significantly enhanced the lettuce seed germination...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/28553225/cardioprotective-action-of-ginkgo-biloba-extract-against-sustained-%C3%AE-adrenergic-stimulation-occurs-via-activation-of-m2-no-pathway
#10
Thássio R R Mesquita, Itamar C G de Jesus, Jucilene F Dos Santos, Grace K M de Almeida, Carla M L de Vasconcelos, Silvia Guatimosim, Fabrício N Macedo, Robervan V Dos Santos, José E R de Menezes-Filho, Rodrigo Miguel-Dos-Santos, Paulo T D Matos, Sérgio Scalzo, Valter J Santana-Filho, Ricardo L C Albuquerque-Júnior, Rose N Pereira-Filho, Sandra Lauton-Santos
Ginkgo biloba is the most popular phytotherapic agent used worldwide for treatment of several human disorders. However, the mechanisms involved in the protective actions of Ginkgo biloba on cardiovascular diseases remain poorly elucidated. Taking into account recent studies showing beneficial actions of cholinergic signaling in the heart and the cholinergic hypothesis of Ginkgo biloba-mediated neuroprotection, we aimed to investigate whether Ginkgo biloba extract (GBE) promotes cardioprotection via activation of cholinergic signaling in a model of isoproterenol-induced cardiac hypertrophy...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28551114/a-mwcnts-pt-nanohybrids-based-highly-sensitive-electrochemiluminescence-sensor-for-flavonoids-assay
#11
Hong Ke, Xin Zhang, Weiwei Guo, Amin Zhang, Zhiming Wang, Chusen Huang, Nengqin Jia
Electrochemiluminescent (ECL) assay has gradually drawn increasing interest to be considered as one of the potential strategies to be applicable in a wide range of medicine target determination. In this protocol, a facile and ultrasensitive ECL sensor platform was developed aiming at rapidly quantitative detection of polyphenolic flavonoids based on multiwall carbon nanotubes (MWCNTs)/platinum nanoparticles (PtNPs) nanohybrids/nafion/Ru(bpy)3(2+) modified glassy carbon electrode (GCE) in Ru(bpy)3(2+)/tri-n-propylamine (TPA) co-reaction system...
August 15, 2017: Talanta
https://www.readbyqxmd.com/read/28510619/diabetes-and-cognitive-decline-in-older-adults-the-ginkgo-evaluation-of-memory-study
#12
Priya Palta, Michelle C Carlson, Rosa M Crum, Elizabeth Colantuoni, A Richey Sharrett, Sevil Yasar, Richard L Nahin, Steven T DeKosky, Beth Snitz, Oscar Lopez, Jeff D Williamson, Curt D Furberg, Stephen R Rapp, Sherita Hill Golden
Background: Previous studies have shown that individuals with diabetes exhibit accelerated cognitive decline. However, methodological limitations have limited the quality of this evidence. Heterogeneity in study design, cognitive test administration, and methods of analysis of cognitive data have made it difficult to synthesize and translate findings to practice. We analyzed longitudinal data from the Ginkgo Evaluation of Memory Study to test our hypothesis that older adults with diabetes have greater test-specific and domain-specific cognitive declines compared to older adults without diabetes...
May 16, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28460580/therapeutic-efficacy-of-the-ginkgo-special-extract-egb761-%C3%A2-within-the-framework-of-the-mitochondrial-cascade-hypothesis-of-alzheimer-s-disease
#13
Walter E Müller, Anne Eckert, Gunter P Eckert, Heidrun Fink, Kristina Friedland, Serge Gauthier, Robert Hoerr, Ralf Ihl, Siegfried Kasper, Hans-Jürgen Möller
OBJECTIVES: The mitochondrial cascade hypothesis of dementia assumes mitochondrial dysfunction as an important common pathomechanism for the whole spectrum of age-associated memory disorders from cognitive symptoms in the elderly over mild cognitive impairment to Alzheimer's dementia. Thus, a drug such as the Ginkgo special extract EGb 761(®) which improves mitochondrial function should be able to ameliorate cognitive deficits over the whole aging spectrum. METHODS: We review the most relevant publications about effects of EGb 761(®) on cognition and synaptic deficits in preclinical studies as well as on cognitive deficits in man from aging to dementia...
May 2, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28454337/inhibitory-effect-of-ginkgol-c17-1-on-the-biological-behavior-of-tumor-cells
#14
Yueying Li, Jun Liu, Yali Liu, Xiaoming Yang, Bingzhong Huang, Min Chen
Ginkgol C17:1 is a bioactive compound derived from Ginkgo biloba. In the present study, the effect and possible mechanisms of action of Ginkgol C17:1 on the biological behaviors of tumor cells were investigated. Whilst cell proliferation was assessed using the MTT assay, the behaviors of cell migration and invasion were explored using Transwell and modified Transwell assays. The results revealed that Ginkgol C17:1 significantly inhibited the proliferation, migration and invasion of human tumor cells in a dose-dependent manner...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454189/assessment-of-the-authenticity-of-herbal-dietary-supplements-comparison-of-chemical-and-dna-barcoding-methods
#15
Rahul S Pawar, Sara M Handy, Raymond Cheng, Nicole Shyong, Erich Grundel
About 7 % of the U. S. population reports using botanical dietary supplements. Increased use of such supplements has led to discussions related to their authenticity and quality. Reports of adulteration with substandard materials or pharmaceuticals are of concern because such substitutions, whether inadvertent or deliberate, may reduce the efficacy of specific botanicals or lead to adverse events. Methods for verifying the identity of botanicals include macroscopic and microscopic examinations, chemical analysis, and DNA-based methods including DNA barcoding...
April 28, 2017: Planta Medica
https://www.readbyqxmd.com/read/28449688/yy-1224-a-terpene-trilactone-strengthened-ginkgo-biloba-attenuates-neurodegenerative-changes-induced-by-%C3%AE-amyloid-1-42-or-double-transgenic-overexpression-of-app-and-ps1-via-inhibition-of-cyclooxygenase-2
#16
Zheng-Yi Li, Yoon Hee Chung, Eun-Joo Shin, Duy-Khanh Dang, Ji Hoon Jeong, Sung Kwon Ko, Seung-Yeol Nah, Tae Gon Baik, Jin Hyeong Jhoo, Wei-Yi Ong, Toshitaka Nabeshima, Hyoung-Chun Kim
BACKGROUND: Ginkgo biloba has been reported to possess free radical-scavenging antioxidant activity and anti-inflammatory properties. In our pilot study, YY-1224, a terpene trilactone-strengthened extract of G. biloba, showed anti-inflammatory, neurotrophic, and antioxidant effects. RESULTS: We investigated the pharmacological potential of YY-1224 in β-amyloid (Aβ) (1-42)-induced memory impairment using cyclooxygenase-2 (COX-2) knockout (-/-) and APPswe/PS1dE9 transgenic (APP/PS1 Tg) mice...
April 27, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28449063/extraction-and-determination-of-quercetin-from-ginkgo-biloba-by-dess-based-polymer-monolithic-cartridge
#17
Xiaoqin Wang, Guizhen Li, Kyung Ho Row
Deep eutectic solvents (DES) were formed from choline chloride (ChCl). DES-modified polymer monolithic (DES-M), template molecular polymer monolithic and non-DES-M without a molecular template were synthesized in identical process. These polymer materials were characterized by field emission scanning electron microscopy and Fourier transform infrared spectroscopy. The significant selective adsorption properties of the polymers were assessed by an absorption capacity experiment and solid-phase extraction (SPE)...
April 26, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28444385/the-effects-of-bacillus-coagulans-fermented-and-non-fermented-ginkgo-biloba-on-abdominal-fat-deposition-and-meat-quality-of-peking-duck
#18
Xiaoyan Liu, Guanjun Cao, Jinglong Zhou, Xuan Yao, Binghu Fang
No abstract text is available yet for this article.
May 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28416372/effects-of-bilobalide-ginkgolide-b-and-picrotoxinin-on-gabaa-receptor-modulation-by-structurally-diverse-positive-modulators
#19
Chiu Chin Ng, Rujee K Duke, Tina Hinton, Graham A R Johnston
Anxiolytics and anticonvulsants generally positively modulate the action of GABA, whereas many convulsants (including the chloride channel blocker picrotoxinin) negatively modulate the action of GABA on GABAA receptors. Like picrotoxinin, bilobalide and ginkgolide B, active constituents of Ginkgo biloba, have been shown to negatively modulate the action of GABA at α1β2γ2L GABAA receptors. However, unlike picrotoxinin, bilobalide and ginkgolide B are not known to cause convulsions. We have assessed the action of bilobalide, ginkgolide B and picrotoxinin on a range of GABAA modulators (etomidate, loreclezole, propofol, thiopentone sodium, diazepam, and allopregnanolone), using two-electrode voltage clamp electrophysiology at recombinant α1β2γ2L GABAA receptors expressed in Xenopus oocytes...
April 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28416145/the-ginkgo-biloba-extract-gbe-protects-the-kidney-from-damage-produced-by-a-single-and-low-dose-of-carbon-tetrachloride-in-adult-male-rats
#20
R M Chávez-Morales, F Jaramillo-Juárez, M L Rodríguez-Vázquez, M C Martínez-Saldaña, F A Posadas Del Río, J A Garfias-López
Gingko biloba leaves have been used as herbal medicine in China for 5000 years, and the standardized leaf extract (GB-STE) has some beneficial effects in the treatment of age-related, cardiovascular, and neurological diseases. The aim of this study was to investigate the renoprotective effects of the Gingko biloba extract (GbE) against the toxicity of a single and relatively low dose of carbon tetrachloride (CCl4). In male adult Wistar rats, we determined the urine flux, the concentration of total proteins in urine, the concentration of glucose in urine, and the concentration of malondialdehyde (MDA) in renal cortex as well as two markers of renal function (clearance of inulin and p-aminohippurate); we also compared the histological lesions caused by CCl4...
April 13, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
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