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https://www.readbyqxmd.com/read/29340060/assessment-of-antimicrobial-and-wound-healing-effects-of-brevinin-2ta-against-the-bacterium-klebsiella-pneumoniae-in-dermally-wounded-rats
#1
Siqin Liu, Qilin Long, Yang Xu, Jun Wang, Zhongwei Xu, Lei Wang, Mei Zhou, Yuxin Wu, Tianbao Chen, Chris Shaw
Antimicrobial peptides (AMPs) are regarded as promising alternatives for antibiotics due to their inherent capacity to prevent microbial drug resistance. Amphibians are rich source of bioactive molecules, which provide numerous AMPs with various structures as drug candidates. Here, we isolated and identified a novel AMP Brevinin-2Ta (B-2Ta) from the skin secretion of the European frog, Pelophylax kl. esculentus. In vitro studies revealed that it showed broad antimicrobial activities against S. aureus, E. coli and C...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29339732/glyburide-and-retinoic-acid-synergize-to-promote-wound-healing-by-anti-inflammation-and-rip140-degradation
#2
Yi-Wei Lin, Pu-Ste Liu, Kasey Ah Pook, Li-Na Wei
Chronic inflammation underlies the development of metabolic diseases and individuals with metabolic disease often also suffer from delayed wound healing due to prolonged inflammation. Resolving inflammation provides a therapeutic strategy in treating metabolic diseases. We previously showed that during an anti-inflammatory response when macrophages were alternatively (M2) polarized, retinoic acid (RA) dramatically activated arginase 1 gene (Arg1), a gene crucial for wound healing. Here we report that a widely used sulfonylurea drug for type 2 diabetes mellitus (T2DM), glyburide, enhances the anti-inflammatory response and synergizes with RA to promote wound healing...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29335190/phytochemistry-and-pharmacology-of-the-genus-leonurus-the-herb-to-benefit-the-mothers-and-more
#3
REVIEW
Rui-Han Zhang, Zhi-Ke Liu, Da-Song Yang, Xing-Jie Zhang, Han-Dong Sun, Wei-Lie Xiao
Plants belonging to the genus Leonurus, also named motherwort, are traditionally used for anti-gynecological disorder in East Asia, and for sedative in Europe. Chemical investigation of the genus Leonurus not only enriched the natural products library, but also enlarged the pharmacological application of this traditional herb. In this review, we systematically summarized the structures of 259 compounds isolated from the genus Leonurus, featured with 147 labdane diterpenoids. The reported bioactivity studies up to 2017 are presented in the second part, with the main focus on the isolated compounds and also concerning the extracts...
January 12, 2018: Phytochemistry
https://www.readbyqxmd.com/read/29329646/effects-of-gardenia-jasminoides-extracts-on-cognition-and-innate-immune-response-in-an-adult-drosophila-model-of-alzheimer-s-disease
#4
Wei-Wei Ma, Ye Tao, Yan-Ying Wang, I-Feng Peng
Herbal extracts have been extensively used worldwide for their application on memory improvement, especially among aged and memory-deficit populations. In the present study, the memory loss induced by human Abeta protein over-expression in fruitfly Alzheimer's disease (AD) model was rescued by multiple extracts from Gardenia jasminoides. Three extracts that rich with gardenia yellow, geniposide, and gardenoside components showed distinct rescue effect on memory loss. Further investigation on adding gardenoside into a formula of Ganoderma lucidum, Panax notoginseng and Panax ginseng (GPP) also support its therapeutic effects on memory improvement...
December 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/29329251/pharmacological-investigation-of-the-anti-inflammation-and-anti-oxidation-activities-of-diallyl-disulfide-in-a-rat-emphysema-model-induced-by-cigarette-smoke-extract
#5
Yan Liu, Ang Li, Xiuli Feng, Xiao Sun, Xiaosong Zhu, Zhongxi Zhao
Diallyl disulfide (DADS) is the main organosulfur ingredient in garlic, with known antioxidant and anti-inflammatory activities. The aim of the present study was to investigate the effect of DADS on reducing the inflammation and redox imbalance in a rat emphysema model that was induced by intraperitoneal injection of cigarette smoke extract (CSE). Briefly, DADS exerted an anti-inflammation effect on emphysema rats through decreasing cell influx in the bronchoalveolar lavage fluid (BALF) and suppressing pro-inflammation cytokine production including tumor necrosis factor alpha (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6) via inhibiting the NF-κB pathway...
January 12, 2018: Nutrients
https://www.readbyqxmd.com/read/29328946/kaempferol-alleviates-lps-induced-neuroinflammation-and-bbb-dysfunction-in-mice-via-inhibiting-hmgb1-release-and-down-regulating-tlr4-myd88-pathway
#6
Xiao Cheng, Ying-Lin Yang, Huan Yang, Yue-Hua Wang, Guan-Hua Du
Kaempferol is a natural flavonoid with many biological activities including anti-oxidation and anti-inflammation. Nevertheless, its anti-neuroinflammation role and the relevant mechanism remain unclear. The present study was to investigate effects of kaempferol against LPS-induced neuroinflammation and blood-brain barrier dysfunction as well as the mechanism in mice. BALB/c mice were treated with LPS 5mg/kg to induce inflammation after pre-treatment with kaempferol 25, 50, or 100mg/kg for 7days. The results showed that kaempferol reduced the production of various pro-inflammatory factors and inflammatory proteins including IL-1β, IL-6, TNF-α, MCP-1, COX-2 and iNOS in brain tissues...
January 9, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29324668/effect-of-ultrasonic-extraction-on-production-and-structural-changes-of-c-phycocyanin-from-marine-spirulina-maxima
#7
Woon Yong Choi, Hyeon Yong Lee
This work first showed that very high amounts of phycocyanins, such as 11.3 mg/mL C-phycocyanin (C-PC), 3.1 mg/mL allophycocyanin (APC), and 0.8 mg/mL phycoerythrin (PE), can be obtained using an ultrasonic extraction process (UE) with a 60 kHz frequency and 3 h of process time at 25 °C, without any other pretreatments. These yields were higher than those from most conventional water extractions at 4 °C for 24 h (Control condition) or at 25 °C for 24 h (WE), namely, 9.8 and 5.7 mg/mL C-PC, 2.3 and 1.2 mg/mL APC, and 0...
January 11, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29323474/caspase-1-specific-light-up-probe-with-aggregation-induced-emission-characteristics-for-inhibitor-screening-of-coumarin-originated-natural-products
#8
Hao Lin, Haitao Yang, Shuai Huang, Fujia Wang, Dong-Mei Wang, Bin Liu, Yi-Da Tang, Chong-Jing Zhang
Caspase-1 is a key player in pyroptosis and inflammation. Caspase-1 inhibition is found to be beneficial to various diseases. Coumarin-originated natural products have an anti-inflammation function, but their direct inhibition effect to caspase-1 remains unexplored. To evaluate their interactions, the widely used commercial coumarin-based probe (Ac-YVAD-AMC) is not suitable, as the background signal from coumarin-originated natural products could interfere with the screening results. Therefore, fluorescent probes using a large Stokes shift could help solve this problem...
January 11, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29312639/progranulin-derived-engineered-protein-atsttrin-suppresses-tnf-%C3%AE-mediated-inflammation-in-intervertebral-disc-degenerative-disease
#9
Hong Ding, Jianlu Wei, Yunpeng Zhao, Yi Liu, Lian Liu, Lei Cheng
Atsttrin, an engineered molecule composed of three fragments of progranulin(PGRN), exerts comparable anti-inflammation ability. Intervertebral disc degeneration (IDD) is involved in inflammation in which TNF-α plays a key role. This study aims to examine the effect and the mechanism of Atsttrin in the pathogenesis of intervertebral disc degeneration. For this purpose, we took advantage of murine and human intervertebral disc (IVD) and examined the expression of TNF-α in IVD tissues using immunohistochemistry and TNF-α level in peripheral sera by ELISA assay...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29306107/leukemia-cells-impair-normal-hematopoiesis-and-induce-functionally-loss-of-hematopoietic-stem-cells-through-immune-cells-and-inflammation
#10
Ping Cui, Yuhua Zhang, Maoxiang Cui, Zhihong Li, Guang Ma, Rufeng Wang, Ning Wang, Shujuan Huang, Jie Gao
Bone marrow (BM) failure is often seen in leukemia patients, indicating an abnormal hematopoietic process. However, hematopoiesis in leukemic milieus is largely unknown. In the present study, we utilized one of the most frequent leukemogenic translocations MLL-AF9 to induce leukemia and investigated the hematopoiesis and the activity of hematopoietic stem and progenitor cells (HSPCs) in a leukemic milieu. We found that the phenotypes of the non-leukemic population in leukemic BM were drastically different than normal BM, including blockage of differentiation and a drastically reduced Lin-/Sca+/c-kit+ (LSK) population that contains all HSPCs in leukemic BM...
January 2, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29302208/morroniside-on-anti-inflammation-activities-in-rats-following-acute-myocardial-infarction
#11
Bangxing Yu, Guoxing Zhang, Yi An, Wen Wang
Our previous studies have confirmed that morroniside has neuroprotective effects. However, the effects of morroniside on cardiac myocardium remain unknown. Rats were anaesthetized with 10% chloral hydrate (0.35~0.4 mL/kg) and an acute myocardial infarction (AMI) was induced by ligating the anterior descending coronary artery (LAD). Following AMI, morroniside was administered intragastrically for 3 consecutive days at doses of 45, 90 and 180 mg/kg, respectively. Lactate dehydrogenase (LDH) and cardiac troponin T (cTnT) activities in AMI rats in the serum were detected with commercial kits...
January 2018: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/29291393/patchouli-alcohol-protects-against-ischemia-reperfusion-induced-brain-injury-via-inhibiting-neuroinflammation-in-normal-and-obese-mice
#12
Li-Li Wei, Yong Chen, Qiong-Yang Yu, Yuhui Wang, George Liu
Almost all of the candidate drugs for ischemic stroke failed to be translated from bench to beside. One important reason is that animals used in experimental studies cannot mimic ischemic patients due to lack of comorbidities like hypertension, diabetes and obesity. Therefore, it is better to test candidate drugs not only in normal animals but also in animals with comorbidities. Patchouli alcohol (PA), a natural tricyclic sesquiterpene in the traditional Chinese herb Pogostemonisherba, is well recognized for its anti-inflammation function in various inflammatory diseases...
December 29, 2017: Brain Research
https://www.readbyqxmd.com/read/29290631/emodin-attenuates-bleomycin-induced-pulmonary-fibrosis-via-anti-inflammatory-and-anti-oxidative-activities-in-rats
#13
Sheng-Lan Tian, Yang Yang, Xiao-Liu Liu, Qing-Bang Xu
BACKGROUND Idiopathic pulmonary fibrosis (IPF) can severely damage lung function, which may result in death. Emodin is a major ingredient of rhubarb and has been proven to protect against lung disruptions. Our study focused on the potential medicinal effect of emodin against IPF. MATERIAL AND METHODS The experiment subjects were fully-grown male Sprague-Dawley rats with average weight of 180-220 kg. Histological analyses, Western blotting analysis, quantitative real-time PCR, and statistical analysis were used in the study...
January 1, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29287458/structures-bioactivities-and-future-prospective-of-polysaccharides-from-morus-alba-white-mulberry-a-review
#14
REVIEW
Xirui He, Jiacheng Fang, Yinlan Ruan, Xiaoxiao Wang, Yin Sun, Ni Wu, Zefeng Zhao, Yu Chang, Ning Ning, Hao Guo, Linhong Huang
Morus alba L. (family Moreaceae), also known as white mulberry, is distinguished as a source of highly promising traditional medicines (including Mori Folium, Mori Fructus, Mori Ramulus and Mori Cortex) and also functional foods. Over the past two decades, the vast majority of the studies with regard to the isolation and bioactivities of M. alba polysaccharides have mainly focused on its leaves and fruits, which are both medicinal and edible. The tender M. alba leaf is edible and can be used to make tea, the mature M...
April 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29287200/gramine-attenuates-egfr-mediated-inflammation-and-cell-proliferation-in-oral-carcinogenesis-via-regulation-of-nf-%C3%AE%C2%BAb-and-stat3-signaling
#15
Arunkumar Ramu, Suresh Kathiresan, Hemavardhini Ramadoss, Anandhi Nallu, Ramachandran Kaliyan, Theerthu Azamuthu
Gramine, a natural indole alkaloid found in Hordeum vulgare has been possesses anti-mutagenic properties. The aim of the present study was to evaluate the effect of gramine on inflammation and proliferation in 7,12-dimethylbenz[a]anthracene(DMBA)-induced hamster buccal pouch (HBP) carcinogenesis. Epidermal growth factor receptor (EGFR) tyrosine kinase phosphorylation trigged PI3K/Akt/mTOR and JAK signaling that activates NF-κB and STAT3. In contrast, gramine suppressed EGFR tyrosine kinase phosphorylation and simultaneously inhibiting PI3K/Akt/mTOR and JAK phosphorylation, thereby blockage NF-κB and STAT3 nuclear translocation...
December 26, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29287195/-6-shogaol-attenuates-inflammation-cell-proliferation-via-modulate-nf-%C3%AE%C2%BAb-and-ap-1-oncogenic-signaling-in-7-12-dimethylbenz-a-anthracene-induced-oral-carcinogenesis
#16
Govindhan Annamalai, Kathiresan Suresh
Nuclear factor-kappaB (NF-κB) and activator protein 1 (AP-1) is a major transcription factor which regulates many biological and pathological processes such as inflammation and cell proliferation, which are major implicates in cancer progression. [6]-Shogaol ([6]-SHO) is a major constituent of ginger, exhibits various biological properties such as anti-oxidants, anti-inflammation and anti-tumor. Recently, we proven that [6]-SHO prevents oral squamous cell carcinoma by activating proapoptotic factors in in vitro and in vivo experimental model...
December 26, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29285098/aspirin-suppresses-tnf-%C3%AE-induced-mmp-9-expression-via-nf-%C3%AE%C2%BAb-and-mapk-signaling-pathways-in-raw264-7-cells
#17
Ping Zhang, Chao Wu, Xiao-Hui Huang, Chen-Lin Shen, Lin Li, Wei Zhang, Cheng-Zeng Yao
Numerous studies have indicated that the expression of matrix metalloproteinase-9 (MMP-9) contributes to the atherosclerotic plaque hemorrhage and rupture. Aspirin, a non-steroidal anti-inflammation drug, has been known for its anti-platelet effect in the prevention of the vascular complications of atherosclerosis. The present study aimed to investigate the pharmacological effects of aspirin on tumor necrosis factor-α (TNF-α)-induced MMP-9 expression and the underlying molecular mechanisms in murine macrophage RAW264...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29282071/analysis-of-the-main-active-ingredients-and-bioactivities-of-essential-oil-from-osmanthus-fragrans-var-thunbergii-using-a-complex-network-approach
#18
Le Wang, Nana Tan, Jiayao Hu, Huan Wang, Dongzhu Duan, Lin Ma, Jian Xiao, Xiaoling Wang
BACKGROUND: Osmanthus fragrans has been used as folk medicine for thousands of years. The extracts of Osmanthus fragrans flowers were reported to have various bioactivities including free radical scavenging, anti-inflammation, neuroprotection and antitumor effects. However, there is still lack of knowledge about its essential oil. METHODS: In this work, we analyzed the chemical composition of the essential oil from Osmanthus fragrans var. thunbergii by GC-MS. A complex network approach was applied to investigate the interrelationships between the ingredients, target proteins, and related pathways for the essential oil...
December 28, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/29277546/inhibition-of-apoptosis-signal-regulating-kinase-1-attenuates-myocyte-hypertrophy-and-fibroblast-collagen-synthesis
#19
Wendi Yang, Bing Hui Wang, Ian Wang, Li Huang, Feby Savira, Andrew Kompa, Beat M Jucker, Robert N Willette, Darren Kelly, Henry Krum, Zhiliang Li, Qian Fu
BACKGROUND: Cardiac remodelling is a dynamic process whereby structural and functional changes occur within the heart in response to injury or inflammation. Recent studies have demonstrated reactive oxygen species sensitive MAPK, apoptosis signal-regulating kinase 1 (ASK1) plays a critical role in cardiac remodelling. This study aims to determine the effectiveness of small molecule ASK1 inhibitors on these processes and their therapeutic potential. METHODS: Neonatal rat cardiac fibroblasts (NCF) were pre-treated with ASK1 inhibitors, G2261818A (G226) and G2358939A (G235), for 2hours before stimulated with 100nM angiotensin II (AngII), 10μM indoxyl sulphate (IS) or 10ng/ml transforming growth factor β1 (TGFβ1) for 48hours...
December 14, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29260265/schisandrin-c-enhances-mitochondrial-biogenesis-and-autophagy-in-c2c12-skeletal-muscle-cells-potential-involvement-of-anti-oxidative-mechanisms
#20
Jeong-Seok Kim, Ho-Keun Yi
The molecular study of muscles is needed to overcome chronic inflammation and maintenance of muscles in the human body. Schisandrin C is a pharmacological compound derived from the fruit of Schisandra chinensis and has many characteristics including anti-inflammation, anti-tumor, and anti-oxidation. However, the cellular and molecular mechanisms of Schisandrin C are still not well understood especially in skeletal muscle. Therefore, the present study was evaluated whether the properties of Schisandrin C in C2C12 skeletal muscle cells involved maintenance of cellular homeostasis and protection against oxidative damage...
December 19, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
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