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https://www.readbyqxmd.com/read/28101174/protective-effects-of-resveratrol-on-autologous-nucleus-pulposus-model-of-radiculopathy
#1
Bin Lin, Hui Yu, Yongzhi He, Yang Xu, Wenbin Zhang, Chengwu Lu, Qingfang Ao
Nucleus pulposus (NP) has been suggested to trigger an autoimmune response if exposed to the immune system, which plays a key role in neuropathic pain. Therefore, appropriate suppression of inflammation is a key factor for treating the radiculopathy caused by intervertebral disk (IVD) degeneration. Resveratrol, a key component of red wine, has been suggested to exhibit anti-inflammatory properties in vitro and in vivo. However, the effects of resveratrol on NP-mediated pain in vivo have not been studied. The aim of the present study was to investigate whether resveratrol may be useful in treating NP-mediated pain in an autologous NP model of radiculopathy...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28100246/genetic-effect-of-interleukin-1-beta-c-511t-polymorphism-on-the-structural-covariance-network-and-white-matter-integrity-in-alzheimer-s-disease
#2
Chi-Wei Huang, Shih-Wei Hsu, Shih-Jen Tsai, Nai-Ching Chen, Mu-En Liu, Chen-Chang Lee, Shu-Hua Huang, Weng-Neng Chang, Ya-Ting Chang, Wan-Chen Tsai, Chiung-Chih Chang
BACKGROUND: Inflammatory processes play a pivotal role in the degenerative process of Alzheimer's disease. In humans, a biallelic (C/T) polymorphism in the promoter region (position-511) (rs16944) of the interleukin-1 beta gene has been significantly associated with differences in the secretory capacity of interleukin-1 beta. In this study, we investigated whether this functional polymorphism mediates the brain networks in patients with Alzheimer's disease. METHODS: We enrolled a total of 135 patients with Alzheimer's disease (65 males, 70 females), and investigated their gray matter structural covariance networks using 3D T1 magnetic resonance imaging and their white matter macro-structural integrities using fractional anisotropy...
January 18, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28098910/hydrogen-rich-saline-improves-non%C3%A2-alcoholic-fatty-liver-disease-by-alleviating-oxidative-stress-and-activating-hepatic-ppar%C3%AE-and-ppar%C3%AE
#3
Xiao Zhai, Xiao Chen, Jiancan Lu, Yaping Zhang, Xuejun Sun, Qin Huang, Qijin Wang
Non-alcoholic fatty liver disease (NAFLD) comprises a range of liver diseases, between steatosis and non‑alcoholic steatohepatitis and liver cirrhosis, which are closely associated with diabetes mellitus. Previous studies have indicated that oxidative stress is a key factor in the development of NAFLD. Molecular hydrogen (H2) may ameliorate oxidative stress injuries by selectively neutralizing peroxynitrite and hydroxyl radicals. The present study evaluated the effects of H2 on NAFLD in rats and concluded that H2‑rich saline had significant therapeutic effects on NAFLD induced by hyperglycemia and hyperlipidemia, as demonstrated by hematoxylin and eosin and terminal deoxynucleotidyl-transferase‑mediated dUTP nick end labeling staining...
January 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28098138/scimp-is-a-transmembrane-non-tir-tlr-adaptor-that-promotes-proinflammatory-cytokine-production-from-macrophages
#4
Lin Luo, Nilesh J Bokil, Adam A Wall, Ronan Kapetanovic, Natalie M Lansdaal, Faustine Marceline, Belinda J Burgess, Samuel J Tong, Zhong Guo, Kirill Alexandrov, Ian L Ross, Margaret L Hibbs, Jennifer L Stow, Matthew J Sweet
Danger signals activate Toll-like receptors (TLRs), thereby initiating inflammatory responses. Canonical TLR signalling, via Toll/Interleukin-1 receptor domain (TIR)-containing adaptors and proinflammatory transcription factors such as NF-κB, occurs in many cell types; however, additional mechanisms are required for specificity of inflammatory responses in innate immune cells. Here we show that SCIMP, an immune-restricted, transmembrane adaptor protein (TRAP), promotes selective proinflammatory cytokine responses by direct modulation of TLR4...
January 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28095363/curcumin-confers-neuroprotection-against-alcohol-induced-hippocampal-neurodegeneration-via-creb-bdnf-pathway-in-rats
#5
Majid Motaghinejad, Manijeh Motevalian, Sulail Fatima, Hajar Hashemi, Mina Gholami
BACKGROUND: Alcohol abuse causes severe damage to the brain neurons. Studies have reported the neuroprotective effects of curcumin against alcohol-induced neurodegeneration. However, the precise mechanism of action remains unclear. METHODS: Seventy rats were equally divided into 7 groups (10 rats per group). Group 1 received normal saline (0.7ml/rat) and group 2 received alcohol (2g/kg/day) for 21days. Groups 3, 4, 5 and 6 concurrently received alcohol (2g/kg/day) and curcumin (10, 20, 40 and 60mg/kg, respectively) for 21days...
January 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28095323/pattern-recognitions-receptors-in-immunodeficiency-disorders
#6
Esameil Mortaz, Ian M Adcock, Payam Tabarsi, Ilad Alavi Darazam, Masoud Movassaghi, Johan Garssen, Hamidreza Jamaati, Aliakbar Velayati
Pattern recognition receptors (PRRs) recognize common microbial or host-derived macromolecules and have important roles in early activation and response of the immune system. Initiation of the innate immune response starts with the recognition of microbial structures called pathogen associated molecular patterns (PAMPs). Recognition of PAMPs is performed by germline-encoded receptors expressed mainly on immune cells termed pattern recognition receptors (PRRs). Several classes of pattern recognition receptors (PRRs) are involved in the pathogenesis of diseases, including Toll-like receptors (TLRs), C-type lectin receptors (CLRs), and Nod-like receptors (NLRs)...
January 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28095064/adipokines-induce-catabolism-of-newly-synthesized-matrix-in-cartilage-and-meniscus-tissues
#7
James F Nishimuta, Marc E Levenston
PURPOSE: Altered synovial levels of various adipokines (factors secreted by fat as well as other tissues) have been associated with osteoarthritis onset and progression. However, the metabolic effects of adipokines on joint tissues, in particular the fibrocartilaginous menisci, are not well understood. This study investigated effects of several adipokines on release of recently synthesized extracellular matrix in bovine cartilage and meniscus tissue explants. MATERIALS AND METHODS: After labeling newly synthesized proteins and sulfated glycosaminoglycans (sGAGs) with (3)H-proline and (35)S-sulfate, respectively, bovine cartilage and meniscus tissue explants were cultured for 6 days in basal medium (control) or media supplemented with adipokines (1 µg/ml of leptin, visfatin, adiponectin, or resistin) or 20ng/ml interleukin-1 (IL-1)...
January 17, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28093936/biological-activities-of-rosmarinus-officinalis-l-rosemary-extract-as-analyzed-in-microorganisms-and-cells
#8
Jonatas Rafael de Oliveira, Daiane de Jesus, Leandro Wagner Figueira, Felipe Eduardo de Oliveira, Cristina Pacheco Soares, Samira Estves Afonso Camargo, Antonio Olavo Cardoso Jorge, Luciane Dias de Oliveira
R. officinalis L. is an aromatic plant commonly used as condiment and for medicinal purposes. Biological activities of its extract were evaluated in this study, as antimicrobial effect on mono- and polymicrobial biofilms, cytotoxicity, anti-inflammatory capacity, and genotoxicity. Monomicrobial biofilms of Candida albicans, Staphylococcus aureus, Enterococcus faecalis, Streptococcus mutans and Pseudomonas aeruginosa and polymicrobial biofilms composed of C. albicans with each bacterium were formed in microplates during 48 h and exposed for 5 min to R...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28092811/towards-the-structure-of-the-tir-domain-signalosome
#9
REVIEW
Surekha Nimma, Thomas Ve, Simon J Williams, Bostjan Kobe
TIR (Toll/interleukin-1 receptor/resistance protein) domains feature in animal, plant and bacterial proteins involved in innate immunity pathways and associated processes. They function through protein:protein interactions, in particular self-association and homotypic association with other TIR domains. Structures of TIR domains from all phyla have been determined, but common association modes have only emerged for plant and bacterial TIR domains, and not for mammalian TIR domains. Numerous attempts involving hybrid approaches, which have combined structural, computational, mutagenesis and biophysical data, have failed to converge onto common models of how these domains associate and function...
January 13, 2017: Current Opinion in Structural Biology
https://www.readbyqxmd.com/read/28089828/nitrite-increases-glucose-stimulated-insulin-secretion-and-islet-insulin-content-in-obese-type-2-diabetic-male-rats
#10
Sevda Gheibi, Fatemeh Bakhtiarzadeh, Sajad Jeddi, Khadijeh Farrokhfall, Homeira Zardooz, Asghar Ghasemi
PURPOSE: Reduced bioavailability of nitric oxide (NO) is associated with pathogenesis of type 2 diabetes. Nitrite can act as a substrate for generation of systemic NO. The aim of this study was to examine the effects of nitrite administration on glucose-stimulated insulin secretion (GSIS) and islet insulin content in obese type 2 diabetic rats. METHODS: Male rats were divided into 4 groups: Control, control + nitrite, diabetes, and diabetes + nitrite. Sodium nitrite (50 mg/L in drinking water) was administered for 8 weeks...
January 9, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28078840/mast-cell-and-cancer-with-special-emphasis-on-il-37-an-anti-inflammatory-and-inhibitor-of-innate-immunity-new-frontiers
#11
F Carinci, G Lessiani, E Spinas, S K Kritas, G Ronconi, Al Caraffa, P Conti
Mast cells (MCs) are mediators of allergy and inflammation and participate in the growth of cancer cells. MCs can promote both neoangiogenesis and tumor growth. They increase in the stroma of certain tumors where they can be recruited by tumor-derived chemoattractants, such as monocyte chemotactic protein-1 (MCP-1), RANTES and stem cell factor (SCF) to selectively secrete inflammatory molecules including chemical mediators and cytokines (TNF, IL-6 and IL-1). However, MC differentiation pathways and heterogeneity in cancer are still poorly understood...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28077582/severity-of-plasma-leakage-is-associated-with-high-levels-of-interferon-%C3%AE-inducible-protein-10-hepatocyte-growth-factor-matrix-metalloproteinase-2-mmp-2-and-mmp-9-during-dengue-virus-infection
#12
Zhisheng Her, Yiu-Wing Kam, Victor C Gan, Bernett Lee, Tun-Linn Thein, Jeslin J L Tan, Linda K Lee, Katja Fink, David C Lye, Laurent Rénia, Yee-Sin Leo, Lisa F P Ng
BACKGROUND:  Dengue virus infection typically causes mild dengue fever, but, in severe cases, life-threatening dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS) occur. The pathophysiological hallmark of DHF and DSS is plasma leakage that leads to enhanced vascular permeability, likely due to a cytokine storm. METHODS:  Ninety patients with dengue during 2010-2012 in Singapore were prospectively recruited and stratified according to their disease phase, primary and secondary infection status, and disease severity, measured by plasma leakage...
January 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28069966/inherited-human-irak-1-deficiency-selectively-impairs-tlr-signaling-in-fibroblasts
#13
Erika Della Mina, Alessandro Borghesi, Hao Zhou, Salim Bougarn, Sabri Boughorbel, Laura Israel, Ilaria Meloni, Maya Chrabieh, Yun Ling, Yuval Itan, Alessandra Renieri, Iolanda Mazzucchelli, Sabrina Basso, Piero Pavone, Raffaele Falsaperla, Roberto Ciccone, Rosa Maria Cerbo, Mauro Stronati, Capucine Picard, Orsetta Zuffardi, Laurent Abel, Damien Chaussabel, Nico Marr, Xiaoxia Li, Jean-Laurent Casanova, Anne Puel
Most members of the Toll-like receptor (TLR) and interleukin-1 receptor (IL-1R) families transduce signals via a canonical pathway involving the MyD88 adapter and the interleukin-1 receptor-associated kinase (IRAK) complex. This complex contains four molecules, including at least two (IRAK-1 and IRAK-4) active kinases. In mice and humans, deficiencies of IRAK-4 or MyD88 abolish most TLR (except for TLR3 and some TLR4) and IL-1R signaling in both leukocytes and fibroblasts. TLR and IL-1R responses are weak but not abolished in mice lacking IRAK-1, whereas the role of IRAK-1 in humans remains unclear...
January 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28068646/sclareol-ameliorate-lipopolysaccharide-induced-acute-lung-injury-through-inhibition-of-mapk-and-induction-of-ho-1-signaling
#14
Yung-Hung Hsieh, Jeng-Shyan Deng, Hsin-Pao Pan, Jung-Chun Liao, Shyh-Shyun Huang, Guan-Jhong Huang
Sclareol is a natural fragrance compound that is used widely in the cosmetic and food industries. This study examined the effect of sclareol on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice. Mice were treated with sclareol 1h before an intratracheal (I.T.) LPS challenge to induce an ALI model. The effects on lung tissue and lung injury were evaluated 6h after LPS induction. Pretreatment with sclareol noticeably improved the LPS-induced histological alterations and edema in lung tissue. Sclareol also inhibited the release of pro-inflammatory mediators...
January 6, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28066142/participation-of-central-gabaa-receptors-in-the-trigeminal-processing-of-mechanical-allodynia-in-rats
#15
Min Ji Kim, Young Hong Park, Kui Ye Yang, Jin Sook Ju, Yong Chul Bae, Seong Kyu Han, Dong Kuk Ahn
Here we investigated the central processing mechanisms of mechanical allodynia and found a direct excitatory link with low-threshold input to nociceptive neurons. Experiments were performed on male Sprague-Dawley rats weighing 230-280 g. Subcutaneous injection of interleukin 1 beta (IL-1β) (1 ng/10 µL) was used to produce mechanical allodynia and thermal hyperalgesia. Intracisternal administration of bicuculline, a gamma aminobutyric acid A (GABAA) receptor antagonist, produced mechanical allodynia in the orofacial area under normal conditions...
January 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28066106/modulation-of-hippocampal-gene-expression-of-microrna-146a-microrna-155-nuclear-factor-kappa-b-inflammatory-signaling-by-troxerutin-in-healthy-and-diabetic-rats
#16
Raana Yavari, Reza Badalzadeh, Mohammad Reza Alipour, Seyed Mahmoud Tabatabaei
OBJECTIVES: Inflammation plays a critical role in the progression of diabetic complications such as neurological disorders. Previous reports have indicated the memory-improving effect of troxerutin, in rat hippocampus, but the underlying mechanisms are unclear. Hence, we have investigated the effect of troxerutin pretreatment on gene expressions of inflammation-related microRNAs (miRs), miR-146a and miR-155, and nuclear factor-kappa B (NF-κB) signaling pathway in the hippocampus of healthy and diabetic rats...
November 2016: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/28065625/decreased-bacterial-adherence-biofilm-formation-and-tissue-reactivity-of-barbed-monofilament-suture-in-an-in%C3%A2-vivo-contaminated-wound-model
#17
Michael R Morris, Christopher Bergum, Nancy Jackson, David C Markel
BACKGROUND: Monofilament and barbed monofilament sutures have been shown in in vitro models to have less bacterial adherence than braided suture. This study evaluates bacterial adherence to suture materials and tissue reactivity with an in vivo contaminated wound mouse model. METHODS: Staphylococcus aureus was used to create an in vivo contaminated wound model at 2 amounts (10(6) colony-forming units [CFU] and 10(8) CFU) using a mouse air pouch. Three types of commonly used absorbable suture were evaluated: braided, monofilament, and barbed monofilament...
November 24, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28065413/therapeutic-targeting-of-mll-degradation-pathways-in-mll-rearranged-leukemia
#18
Kaiwei Liang, Andrew G Volk, Jeffrey S Haug, Stacy A Marshall, Ashley R Woodfin, Elizabeth T Bartom, Joshua M Gilmore, Laurence Florens, Michael P Washburn, Kelly D Sullivan, Joaquin M Espinosa, Joseph Cannova, Jiwang Zhang, Edwin R Smith, John D Crispino, Ali Shilatifard
Chromosomal translocations of the mixed-lineage leukemia (MLL) gene with various partner genes result in aggressive leukemia with dismal outcomes. Despite similar expression at the mRNA level from the wild-type and chimeric MLL alleles, the chimeric protein is more stable. We report that UBE2O functions in regulating the stability of wild-type MLL in response to interleukin-1 signaling. Targeting wild-type MLL degradation impedes MLL leukemia cell proliferation, and it downregulates a specific group of target genes of the MLL chimeras and their oncogenic cofactor, the super elongation complex...
January 12, 2017: Cell
https://www.readbyqxmd.com/read/28060920/the-tir-homologue-lies-near-resistance-genes-in-staphylococcus-aureus-coupling-modulation-of-virulence-and-antimicrobial-susceptibility
#19
Sabine Patot, Paul Rc Imbert, Jessica Baude, Patricia Martins Simões, Jean-Baptiste Campergue, Arthur Louche, Reindert Nijland, Michèle Bès, Anne Tristan, Frédéric Laurent, Adrien Fischer, Jacques Schrenzel, François Vandenesch, Suzana P Salcedo, Patrice François, Gérard Lina
Toll/interleukin-1 receptor (TIR) domains in Toll-like receptors are essential for initiating and propagating the eukaryotic innate immune signaling cascade. Here, we investigate TirS, a Staphylococcus aureus TIR mimic that is part of a novel bacterial invasion mechanism. Its ectopic expression in eukaryotic cells inhibited TLR signaling, downregulating the NF-kB pathway through inhibition of TLR2, TLR4, TLR5, and TLR9. Skin lesions induced by the S. aureus knockout tirS mutant increased in a mouse model compared with wild-type and restored strains even though the tirS-mutant and wild-type strains did not differ in bacterial load...
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28059970/artesunate-protects-against-the-organ-injury-and-dysfunction-induced-by-severe-hemorrhage-and-resuscitation
#20
Regina Sordi, Kiran K Nandra, Fausto Chiazza, Florence L Johnson, Claudia P Cabrera, Hew D Torrance, Noriaki Yamada, Nimesh S A Patel, Michael R Barnes, Karim Brohi, Massimo Collino, Christoph Thiemermann
OBJECTIVE: To evaluate the effects of artesunate on organ injury and dysfunction associated with hemorrhagic shock (HS) in the rat. BACKGROUND: HS is still a common cause of death in severely injured patients and is characterized by impairment of organ perfusion, systemic inflammatory response, and multiple organ failure. There is no specific therapy that reduces organ injury/dysfunction. Artesunate exhibits pharmacological actions beyond its antimalarial activity, such as anticancer, antiviral, and anti-inflammatory effects...
February 2017: Annals of Surgery
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