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https://www.readbyqxmd.com/read/29792947/trail-attenuates-sulforaphane-mediated-nrf2-and-sustains-ros-generation-leading-to-apoptosis-of-trail-resistant-human-bladder-cancer-cells
#1
Cheng-Yun Jin, Ilandarage Menu Neelaka Molagoda, Wisurumuni Arachchilage Hasitha Maduranga Karunarathne, Sang-Hyuck Kang, Cheol Park, Gi-Young Kim, Yung Hyun Choi
Tumor necrosis factor-related apoptosis inducing ligand (TRAIL) can preferentially initiate apoptosis in malignant cells with minimal toxicity to normal cells. Unfortunately, many human cancer cells are refractory to TRAIL-induced apoptosis through many unknown mechanisms. Here, we report that TRAIL resistance can be reversed in human bladder cancer cell lines by treatment with sulforaphane (SFN), a well-known chemopreventive isothiocyanate in various cruciferous vegetables. Combined treatment with SFN and TRAIL (SFN/TRAIL) significantly induced apoptosis concomitant with activation of caspases, loss of mitochondrial membrane potential (MMP), Bid truncation, and induction of death receptor 5...
May 21, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29790398/acute-inflammatory-biomarker-responses-to-diffuse-traumatic-brain-injury-in-the-rat-monitored-by-a-novel-microdialysis-technique
#2
Fredrik Clausen, Niklas Marklund, Lars Hillered
Neuroinflammation is a major contributor to the progressive brain injury process induced by traumatic brain injury (TBI), and may play an important role in the pathophysiology of axonal injury. The immediate neuroinflammatory cascade cannot be characterized in the human setting. Therefore, we used the midline fluid percussion injury model of diffuse TBI in rats and a novel microdialysis (MD) method providing stable diffusion-driven biomarker sampling. Immediately post-injury, bilateral amphiphilic tri-block polymer coated MD probes (100 kDa cut off membrane) were inserted and perfused with Dextran 500 kDa-supplemented artificial CSF to optimize protein capture...
May 23, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29790384/is-gestational-diabetes-mellitus-in-obese-women-predicted-by-oxidative-damage-in-red-blood-cells
#3
Guadalupe León-Reyes, Alberto Martín Guzmán-Grenfell, Rafael Medina-Navarro, Araceli Montoya-Estrada, Mario Adán Moreno-Eutimio, Silvia Fuentes-García, Otilia Perichart Perera, Cinthya Muñoz-Manrique, Salvador Espino Y Sosa, Juan José Hicks G, Yessica Dorin Torres-Ramos
Obesity in pregnant women has been associated with an increased risk of maternal complications, including gestational diabetes mellitus (GDM), a process that is related to oxidative stress (OS). To evaluate the biomarkers of OS in red blood cells (RBCs), we assigned 80 pregnant women to one of three groups: control (n = 28), overweight (n = 26) and obese (n = 26). Then, we measured in plasma, the levels of glucose, triacylglycerol (TAG), insulin, free fatty acids (FFAs), leptin and cytokines (e...
May 23, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29787991/synthetic-chalcones-as-potential-tool-for-acute-and-chronic-pain-control
#4
Lilian W Rocha, Daniele R Sonza, Milena Fronza Broering, Roberta Nunes, Fátima de Campos-Buzzi, Rogério Corrêa, Rangel L Silva, Thiago M Cunha, José Roberto Santin, Nara L M Quintão
The purpose of this study was to validate the potential anti-hypersensitive activity of two chalcones, (2E)-1-(4-aminophenyl)-3-(4-nitrophenyl)prop-2-en-1-one (ANCh) and N-{4-[(2E)-3-(4-nitrophenyl)prop-2-enoil]phenyl}acetamide (AcANCh), by different models of acute and persistent pain in mice, besides in silico analysis. Molecules computational investigation for prediction of Lipinki's and Veber's rules to determine solubility, % absorption, drug likeness and toxicity liabilities was performed. Male and female C57BL/6 mice (20-30 g, n = 6) were used...
May 19, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29785433/the-immunomodulatory-activity-and-mechanism-of-docosahexenoic-acid-dha-on-immunosuppressive-mice-models
#5
Lirong Han, Huanna Lei, Ziwei Tian, Xu Wang, Dai Cheng, Chunling Wang
In this study, the immunomodulatory activity of docosahexaenoic acid (DHA) on the immunosuppressive BALB/c mice model and its molecular mechanism are elucidated. It was found that the weight indexes of the spleen and thymus were significantly increased by DHA (44.0 mg kg-1 and 88.0 mg kg-1) treatment in the prevention or cure groups. The result of macrophages showed that DHA (44.0 mg kg-1 and 88.0 mg kg-1) could promote the proliferation and phagocytosis activity of macrophages in the prevention or cure groups...
May 22, 2018: Food & Function
https://www.readbyqxmd.com/read/29780828/effect-of-formaldehyde-on-human-middle-ear-epithelial-cells
#6
Shin Hye Kim, Ji-Woong Choi, Myung-Whan Suh, Jun Ho Lee, Seung-Ha Oh, Jae-Jun Song, Moo Kyun Park
Formaldehyde (FA) is a familiar indoor air pollutant found in everything from cosmetics to clothing, but its impact on the middle ear is unknown. This study investigated whether FA causes cytotoxicity, inflammation, or induction of apoptosis in human middle ear epithelial cells (HMEECs). Cell viability was investigated using the trypan blue assay and a cell counting kit (CCK-8) in HMEECs treated with FA for 4 or 24 h. The expression of genes encoding the inflammatory cytokine tumor necrosis factor alpha (TNF- α ) and mucin (MUC5AC) was analyzed using RT-PCR...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29775737/deltex-interacts-with-eiger-and-consequently-influences-the-cell-death-in-drosophila-melanogaster
#7
Debdeep Dutta, Ankita Singh, Maimuna Sali Paul, Vartika Sharma, Mousumi Mutsuddi, Ashim Mukherjee
TNF-JNK signaling is one of the highly conserved signaling pathways that regulate a broad spectrum of cellular processes including proliferation and apoptosis. Eiger, the sole homologue of TNF in Drosophila, initiates the TNF-JNK pathway to induce cell death. Previously, Deltex (Dx) has been identified as a Notch signaling component that regulates vesicular trafficking of Notch. In the present study, we have investigated the interaction between these two proteins in order to identify how Dx influences the activity of Eiger...
May 15, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29774334/a-comparative-study-of-epa-enriched-ethanolamine-plasmalogen-and-epa-enriched-phosphatidylethanolamine-on-a%C3%AE-42-induced-cognitive-deficiency-in-a-rat-model-of-alzheimer-s-disease
#8
Hongxia Che, Qian Li, Tiantian Zhang, Lin Ding, Lingyu Zhang, Haohao Shi, Teruyoshi Yanagita, Changhu Xue, Yaoguang Chang, Yuming Wang
Ethanolamine plasmalogen (pPE), a major phospholipid in neuronal membranes, is specifically reduced in postmortem brains from patients with Alzheimer's disease (AD). The purpose of the present study was to compare the effects of EPA-enriched ethanolamine plasmalogen (EPA-pPE) and EPA-enriched phosphatidylethanolamine (EPA-PE) on cognitive deficiency and illustrate the possible underlying mechanisms. SD rats were divided into four groups including the sham group injected with 0.9% saline and three amyloid-β (Aβ) infusion groups, Aβ42 group, EPA-pPE group and EPA-PE group...
May 18, 2018: Food & Function
https://www.readbyqxmd.com/read/29773101/-microvesicles-derived-from-lps-induced-microglia-aggravate-the-injury-of-tight-junction-in-rat-brain-microvascular-endothelial-cells-under-oxygen-glucose-deprivation
#9
Yanni Lyu, Longsheng Fu, Yanming Li, Jinhua Wen, Xiaohua Wei, Yisong Qian
Objective To study the effect of the administration of the circulating microvesicles (MV) obtained from lipopolysaccharide (LPS)-stimulated microglia supernatant into rat brain endothelial cells (RBECs) on the injury of tight junction in RBECs under the condition of oxygen-glucose deprivation (OGD) as well as the underlying mechanism. Methods The circulating MV was isolated from the supernatant of microglia stimulated with LPS 1 mg/L for 24 hours and subjected to morphological identification. The expression of miR-27a in MV was detected by real-time PCR...
March 2018: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/29773005/anti-inflammatory-potential-of-in-vitro-cultures-of-the-white-button-mushroom-agaricus-bisporus-agaricomycetes-in-caco-2-cells
#10
Bozena Muszynska, Agata Grzywacz, Katarzyna Kala, Joanna Gdula-Argasinska
Agaricus bisporus (white button mushroom) is one of the most popular culinary-medicinal mushrooms worldwide. This species has for decades been the subject of numerous scientific studies. The aim of this study was to examine the pro- or anti-inflammatory properties of A. bisporus and biomass extracts from in vitro cultures growing in Oddoux medium enriched with α-linolenic acid in colon epithelial Caco-2 cells activated with lipopolysaccharide (LPS) and tumor necrosis factor (TNF)-α. Incubation of Caco-2 cells with A...
2018: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/29772805/ethyl-acetate-fraction-from-persimmon-diospyros-kaki-ameliorates-cerebral-neuronal-loss-and-cognitive-deficit-via-the-jnk-akt-pathway-in-tmt-induced-mice
#11
Jong Min Kim, Seon Kyeong Park, Jin Yong Kang, Su Bin Park, Seul Ki Yoo, Hye Ju Han, Chul-Woo Kim, Uk Lee, Sea-Hyun Kim, Ho Jin Heo
This study was conducted to assess the antioxidant capacity and protective effect of the ethyl acetate fraction from persimmon ( Diospyros kaki ) (EFDK) on H₂O₂-induced hippocampal HT22 cells and trimethyltin chloride (TMT)-induced Institute of Cancer Research (ICR) mice. EFDK had high antioxidant activities and neuroprotective effects in HT22 cells. EFDK ameliorated behavioral and memory deficits in Y-maze, passive avoidance and Morris water maze tests. Also, EFDK restored the antioxidant system by regulating malondialdehyde (MDA), superoxide dismutase (SOD) and reduced gluthathione (GSH), and the cholinergic system by controlling the acetylcholine (ACh) level and acetylcholinesterase (AChE) activity and expression...
May 17, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29769272/original-ligand-for-lt%C3%AE-r-is-light-insight-into-evolution-of-the-lt-lt%C3%AE-r-system
#12
Tomoki Maeda, Hiroaki Suetake, Tomoyuki Odaka, Toshiaki Miyadai
The lymphotoxin (LT)/LTβ receptor (LTβR) axis is crucial for the regulation of immune responses and development of lymphoid tissues in mammals. Despite the importance of this pathway, the existence and function of LT and LTβR remain obscure for nonmammalian species. In this study, we report a nonmammalian LTβR and its ligand. We demonstrate that TNF-New (TNFN), which has been considered orthologous to mammalian LT, was expressed on the cell surface as a homomer in vitro. This different protein structure indicates that TNFN is not orthologous to mammalian LTα and LTβ...
May 16, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29765450/lutein-prevents-osteoarthritis-through-nrf2-activation-and-downregulation-of-inflammation
#13
Yan-Qin Qiao, Pan-Feng Jiang, Yan-Zheng Gao
Introduction: Osteoarthritis is an inflammatory disorder associated with oxidative stress and apoptosis leading to cartilage destruction and impairment of cartilage formation. In the present study, we studied the protective effect of lutein against monosodium iodoacetate (MIA)-induced osteoarthritis in primary chondrocyte cells. Material and methods: Oxidative stress was determined through testing antioxidant status, reactive oxygen species levels and lipid peroxide content...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29759420/lysyl-oxidase-like-2-contributes-to-renal-fibrosis-in-col4%C3%AE-3-alport-mice
#14
Dominic Cosgrove, Brianna Dufek, Daniel T Meehan, Duane Delimont, Michael Hartnett, Gina Samuelson, Michael Anne Gratton, Grady Phillips, Deidre A MacKenna, Gretchen Bain
Lysyl oxidase like-2 (LOXL2) is an amine oxidase with both intracellular and extracellular functions. Extracellularly, LOXL2 promotes collagen and elastin crosslinking, whereas intracellularly, LOXL2 has been reported to modify histone H3, stabilize SNAIL, and reduce cell polarity. Although LOXL2 promotes liver and lung fibrosis, little is known regarding its role in renal fibrosis. Here we determine whether LOXL2 influences kidney disease in COL4A3 (-/-) Alport mice. These mice were treated with a small molecule inhibitor selective for LOXL2 or with vehicle and assessed for glomerular sclerosis and fibrosis, albuminuria, blood urea nitrogen, lifespan, pro-fibrotic gene expression and ultrastructure of the glomerular basement membrane...
May 11, 2018: Kidney International
https://www.readbyqxmd.com/read/29757258/lipid-nanoparticles-decorated-with-tnf-related-aptosis-inducing-ligand-trail-are-more-cytotoxic-than-soluble-recombinant-trail-in-sarcoma
#15
Ana Gallego-Lleyda, Diego De Miguel, Alberto Anel, Luis Martinez-Lostao
Sarcomas are rare and heterogeneous cancers classically associated with a poor outcome. Sarcomas are 1% of the cancer but recent estimations indicate that sarcomas account for 2% of the estimated cancer-related deaths. Traditional treatment with surgery, radiotherapy, and chemotherapy has improved the outcome for some types of sarcomas. However, novel therapeutic strategies to treat sarcomas are necessary. TNF-related apoptosis-inducing ligand (TRAIL) is a death ligand initially described as capable of inducing apoptosis on tumor cell while sparing normal cells...
May 13, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29753311/peritoneal-and-systemic-responses-of-obese-type-ii-diabetic-rats-to-chronic-exposure-to-a-hyperbranched-polyglycerol-based-dialysis-solution
#16
Bo La Han, Qiunong Guan, Irina Chafeeva, Asher A Mendelson, Gerald da Roza, Richard Liggins, Jayachandran N Kizhakkedathu, Caigan Du
Metabolic syndrome (MetS) is commonly observed among peritoneal dialysis (PD) patients, and hyperbranched polyglycerol (HPG) is a promising glucose-sparing osmotic agent for PD. However, the biocompatibility of a HPG-based PD solution (HPG) in subjects with MetS has not been investigated. This study compared the local and systemic effects of a HPG solution with conventional Physioneal (PYS) and Icodextrin (ICO) PD solutions in rats with MetS. Obese type 2 diabetic ZSF1 rats received a daily intraperitoneal injection of PD solutions (10 mL) for 3 months...
May 12, 2018: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29752865/anti-arthritic-effects-of-sorafenib-in-rats-with-adjuvant-induced-arthritis
#17
Zhen-Zhen Wang, Fei Liu, Yong-Fang Gong, Tian-Yu Huang, Xiao-Ming Zhang, Xue-Ying Huanga
Rheumatoid arthritis (RA) is a chronic inflammatory disease affecting the synovial membrane of joints. In this study, we aimed to investigate whether sorafenib exerts anti-arthritic effects on RA in vivo. Adjuvant arthritis (AA) was induced (day 0) in male Sprague-Dawley rats by intradermal injection of 0.1 ml of complete Freund's complete adjuvant into the left hind paw. Sorafenib (10, 20, or 40 mg/kg/day) was administered intragastrically from day 10 to 24. Body weight, paw volume, synovial inflammation, and tumor necrosis factor alpha (TNF-α), interleukin-1β (IL-1β), IL-10, and IL-17 serum levels were detected...
May 12, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29751615/the-maxi-k-bk-channel-antagonist-penitrem-a-as-a-novel-breast-cancer-targeted-therapeutic
#18
Amira A Goda, Abu Bakar Siddique, Mohamed Mohyeldin, Nehad M Ayoub, Khalid A El Sayed
Breast cancer (BC) is a heterogeneous disease with different molecular subtypes. The high conductance calcium-activated potassium channels (BK, Maxi-K channels) play an important role in the survival of some BC phenotypes, via membrane hyperpolarization and regulation of cell cycle. BK channels have been implicated in BC cell proliferation and invasion. Penitrems are indole diterpene alkaloids produced by various terrestrial and marine Penicillium species. Penitrem A ( 1 ) is a selective BK channel antagonist with reported antiproliferative and anti-invasive activities against multiple malignancies, including BC...
May 11, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29751216/pellino-1-is-a-novel-regulator-of-tnf-and-tlr-signalling-in-human-myometrial-and-amnion-cells
#19
Ratana Lim, Gillian Barker, Martha Lappas
Preterm birth is the primary cause of neonatal deaths and morbidities. Pathological processes causally linked to preterm birth are inflammation and infection. Pellino-1 (Peli1) has previously been found to regulate the inflammatory response in non-gestational tissues in response to toll-like receptor (TLR) ligands and pro-inflammatory cytokines. The aims of this study were to determine the effect of labor on Peli1 expression in myometrium and fetal membranes, and the effect of Peli1 silencing by siRNA (siPELI1) on the production of pro-inflammatory and pro-labor mediators...
April 14, 2018: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29749459/ctrp9-ameliorates-cellular-senescence-via-pgc%C3%A2-1%C3%AE-ampk-signaling-in-mesenchymal-stem-cells
#20
Qun Li, Zhangzhang Zhu, Chengde Wang, Lin Cai, Jianglong Lu, Yongchun Wang, Jiadong Xu, Zhipeng Su, Weiming Zheng, Xianbin Chen
Stroke is the second most common cause of death worldwide, and thus, it imposes great financial burdens on both individuals and society. Mesenchymal stem cell (MSC) therapy is a promising approach for ischemic brain injury. However, MSC treatment potential is progressively reduced with age, limiting their therapeutic efficacy for brain repair post‑stroke. C1q and tumor necrosis factor‑related protein 9 (CTRP9) is a novel cytoprotective cytokine with antioxidant effects, which is highly expressed in brain tissue...
May 9, 2018: International Journal of Molecular Medicine
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