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Type 2 inflammation

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https://www.readbyqxmd.com/read/29351480/mechanistically-different-effects-of-fat-and-sugar-on-insulin-resistance-hypertension-and-gut-microbiota-in-rats
#1
Sara Ramos-Romero, Mercè Hereu, Lidia Atienza, Josefina Casas, Olga Jáuregui, Susana Amézqueta, Gabriel Dasilva, Isabel Medina, Maria Rosa Nogués, Marta Romeu, Josep Lluís Torres
Insulin resistance (IR) and impaired glucose tolerance (IGT) are the first manifestations of diet-induced metabolic alterations leading to type-2 diabetes, while hypertension is the deadliest risk factor of cardiovascular disease. The roles of dietary fat and fructose in the development of IR, IGT and hypertension are controversial. We tested the long-term effects of an excess of fat or sucrose (fructose/glucose) on healthy male Wistar Kyoto (WKY) rats. Fat affects IR and IGT earlier than fructose through low-grade systemic inflammation evidenced by liver inflammatory infiltration, increased levels of plasma interleukin-6, prostaglandin E2 and reduced levels of protective short-chain fatty acids without triggering hypertension...
January 2, 2018: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29350883/peri-implant-conditions-and-levels-of-advanced-glycation-end-products-among-patients-with-different-glycemic-control
#2
Zeyad H Al-Sowygh, Siti Mariam Ab Ghani, Konstantinos Sergis, Fahim Vohra, Zohaib Akram
BACKGROUND: A close relationship between poor glycemic control and peri-implant break down has been demonstrated. It is hypothesized that levels of advanced glycation end products (AGEs) in peri-implant sulcular fluid (PISF) are higher with increased glycemic levels in type 2 diabetes mellitus patients. PURPOSE: In the present study, we examined the clinical and radiographic peri-implant parameters and levels of AGEs among different glycemic levels in diabetic patients and assessed whether the levels of AGEs correlate with clinical peri-implant parameters...
January 19, 2018: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29350876/mechanism-of-mer-receptor-tyrosine-kinase-inhibition-of-glomerular-endothelial-cell-inflammation
#3
Yuxuan Zhen, Fred D Finkelman, Wen-Hai Shao
Endotoxin induces a variety of proinflammatory mediators and plays a crucial role in kidney inflammation. The receptor tyrosine kinase, Mer, diminishes renal inflammation by attenuating inflammatory responses. We previously reported that Mer is predominantly expressed on glomerular endothelial cells (GECs) and that Mer deficiency is associated with increased renal inflammation when mice are challenged with nephrotoxic serum. We consequently hypothesized that Mer signaling down-regulates LPS-driven inflammatory responses in GECs...
January 19, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29350418/species-differences-in-circulation-and-inflammatory-responses-in-children-with-common-respiratory-adenovirus-infections
#4
Haruna Nakamura, Takao Fujisawa, Shigeru Suga, Kiyosu Taniguchi, Mizuho Nagao, Masahiro Ito, Hitoshi Ochiai, Masami Konagaya, Nozomu Hanaoka, Tsuguto Fujimoto
BACKGROUND: Human adenoviruses (HAdVs) cause severe inflammatory respiratory infections, but previous epidemiological studies lacked analysis of the characteristics of the inflammation. METHODS: Consecutive patients <13 years old with acute febrile illness during a 2-year period were tested. HAdV strains were isolated from nasopharyngeal swabs, and molecular identification was performed by hexon, fiber and species-specific PCR methods. Blood inflammatory markers, including the white blood cell (WBC) count, CRP and 29 cytokines, were measured...
January 19, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29349649/structure-activity-relationships-of-flavanones-flavanone-glycosides-and-flavones-in-anti-degranulation-activity-in-rat-basophilic-leukemia-rbl-2h3-cells
#5
Toshiro Noshita, Kaori Miura, Kaoru Ikeda, Hidekazu Ouchi, Takuya Matsumoto, Akihiro Tai
The incidence of type I allergies, which are associated with mast cell degranulation and local inflammation, is increasing, and new treatments are needed. To date, structure-activity relationships of flavonoids in their degranulation-inhibiting activity have not been systematically characterized. In the current study, the degranulation-inhibiting activity of a series of flavonoids was evaluated. The following three observations were made: (1) the activity disappears when a sugar moiety is introduced into the A ring of the flavanone; (2) the activity depends on the number of hydroxyl groups on the B ring; (3) the activity is markedly enhanced when a double bond is introduced into the C ring...
January 18, 2018: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29346348/macrophages-regulate-lung-ilc2-activation-via-pla2g5-dependent-mechanisms
#6
M Yamaguchi, S K Samuchiwal, O Quehenberger, J A Boyce, B Balestrieri
Group V phospholipase A2 (Pla2g5) is a lipid-generating enzyme necessary for macrophage effector functions in pulmonary inflammation. However, the lipid mediators involved and their cellular targets have not been identified. Mice lacking Pla2g5 showed markedly reduced lung ILC2 activation and eosinophilia following repetitive Alternaria Alternata inhalation. While Pla2g5-null mice had Wt levels of immediate IL-33 release after one Alternaria dose, they failed to upregulate IL-33 in macrophages following repeated Alternaria administration...
December 20, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/29345344/differential-outcomes-of-tlr2-engagement-in-inflammation-induced-preterm-birth
#7
Monica Cappelletti, Matthew J Lawson, Calvin C Chan, Adrienne N Wilburn, Senad Divanovic
Preterm birth (PTB) is the leading cause of neonatal mortality worldwide. Infection and inflammation are considered main causes of PTB. Among multiple pathogens, Gram-positive bacteria are commonly linked with induction of PTB. Although activation of innate immune responses, via TLR2 engagement, by Gram-positive bacteria is a likely cause, whether induction of PTB depends on the potency of specific microbial components to induce Toll-like receptor (TLR)2-driven inflammation has not been elucidated. Here, we show that TLR2 activation by synthetic lipopeptides, Pam2Cys, and Pam3Cys specifically, variably influenced inflammation and subsequent induction of PTB...
December 28, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345286/cyclooxygenase-2-expression-is-induced-by-celecoxib-treatment-in-lung-cancer-cells-and-is-transferred-to-neighbor-cells-via-exosomes
#8
Jayoung Kim, Seung-Woo Hong, Seonghan Kim, Daejin Kim, Dae Young Hur, Dong-Hoon Jin, Bomi Kim, Yeong Seok Kim
Lung cancer is one of most common types of cancer worldwide. Lung cancer results in a death higher rate each year compared to colon, breast and prostate cancer combined. Celecoxib is a selective inhibitor of cyclooxygenase-2 (COX‑2), an enzyme of which the expression is induced by various stimuli, such as inflammation. In addition, celecoxib triggers COX-2 loading on exosomes. Exosomes are small vesicles composed of a lipid bilayer membrane and are found in most biological fluids, such as blood breast milk and urine...
February 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29345196/surfactant-protein-c-dampens-inflammation-by-decreasing-jak-stat-activation-during-lung-repair
#9
Huiyan Jin, Andrzej K Ciechanowicz, Alanna R Kaplan, Lin Wang, Ping Xia Zhang, Yi-Chien Lu, Rachel E Tobin, Brooke A Tobin, Lauren Cohn, Caroline J Zeiss, Patty J Lee, Emanuela M Bruscia, Diane S Krause
Surfactant Protein C (SPC), a key component of pulmonary surfactant, also plays a role in regulating inflammation. SPC deficiency in patients and mouse models is associated with increased inflammation and delayed repair, but the key drivers of SPC-regulated inflammation in response to injury are largely unknown. This study focuses on a new mechanism of SPC as an anti-inflammatory molecule using SPC-TK/SPC-KO (surfactant protein C-thymidine kinase/surfactant protein C knockout) mice, which represent a novel sterile injury model that mimics clinical acute respiratory distress syndrome (ARDS)...
January 18, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29345053/naringenin-4-5-7-trihydroxyflavanone-suppresses-the-development-of-precancerous-lesions-via-controlling-hyperproliferation-and-inflammation-in-the-colon-of-wistar-rats
#10
Muneeb U Rehman, Manzoor Ur Rahman Mir, Adil Farooq, Shahzada Mudasir Rashid, Bilal Ahmad, Sheikh Bilal Ahmad, Rayeesa Ali, Ishraq Hussain, Mubashir Masoodi, Showkeen Muzamil, Hassan Madkhali, Majid Ahmad Ganaie
Colon cancer is a world-wide health problem and one of the most dangerous type of cancer, affecting both men and women. Naringenin (4, 5, 7-trihydroxyflavanone) is one of the major flavone glycoside present in citrus fruits. Naringenin has long been used in Chinese's traditional medicine because of its exceptional pharmacological properties and non-toxic nature. In the present study, we investigated the chemopreventive potential of Naringenin against 1,2-dimethyhydrazine (DMH)-induced precancerous lesions, that is, aberrant crypt foci (ACF) and mucin depleted foci (MDF), and its role in regulating the oxidative stress, inflammation and hyperproliferation, in the colon of Wistar rats...
January 18, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29344688/inflammation-based-prognostic-score-predicts-postoperative-survival-of-patients-with-interstitial-pneumonia-after-undergoing-lung-cancer-resection
#11
Satoru Kobayashi, Yuji Matsumura, Yoko Karube, Morimichi Nishihira, Takashi Inoue, Osamu Araki, Sumiko Maeda, Masayuki Chida
OBJECTIVES: Idiopathic interstitial pneumonias (IIPs) are associated with an increased risk of lung cancer. Glasgow prognostic score (GPS), which uses serum C-reactive protein (CRP) and albumin levels to indicate systemic inflammatory response and nutrition level, has been reported to be a predictor of overall survival in patients with various types of cancer. We evaluated the usefulness of GPS for prediction of survival of patients with both lung cancer and IIPs following a lung resection procedure...
January 17, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29344657/effects-of-hereditary-moderate-high-fat-diet-on-metabolic-performance-and-physical-endurance-capacity-in-c57bl-6-offspring
#12
Fang Liu, Guirong Zhang, Xue Sheng, Shang Liu, Meng Cui, Heyun Guo, Jianbin Xue, Lingyun Zhang
Obesity in pregnant women presents a risk to fetal health, leading to numerous metabolic syndromes and chronic inflammation risks. Previously, physical exercise was considered to be one of the primary treatments for obesity. However, the effect of fat consumption throughout the life cycle on physical endurance capacity remains unknown. A total of two groups of female mice (age, 6 weeks; C57BL/6J) were fed with a normal chow diet and a moderate high fat diet (MHFD), during pregnancy and lactation (8 weeks), with the offspring receiving the same diet as the mother...
January 16, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29344655/protective-effects-of-osthole-against-inflammation-induced-by-lipopolysaccharide-in-bv2-cells
#13
Yuxin Bao, Xiaolin Meng, Fangning Liu, Fei Wang, Jinhui Yang, Haiyu Wang, Guanghong Xie
Inflammation and oxidative stress are implicated in the development of neurodegenerative diseases. Osthole is a compound that is extracted from She Chuang Zi, which is a type of traditional Chinese medicine. Osthole has previously been demonstrated to exhibit anticancer activities and has a low toxicity. However, to the best of our knowledge, the anti‑inflammatory effects of osthole in microglial cells have not been investigated extensively. The aim of the present study was to investigate the potential protective effects of osthole against inflammation induced by lipopolysaccharide (LPS) in microglial cells...
January 17, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29343707/sensory-neuronal-p2rx4-receptors-controls-bdnf-signaling-in-inflammatory-pain
#14
Sarah Lalisse, Jennifer Hua, Manon Lenoir, Nathalie Linck, François Rassendren, Lauriane Ulmann
Chronic inflammatory and neuropathic pains are major public health concerns. Potential therapeutic targets include the ATP-gated purinergic receptors (P2RX) that contribute to these pathological types of pain in several different cell types. The purinergic receptors P2RX2 and P2RX3 are expressed by a specific subset of dorsal root ganglion neurons and directly shape pain processing by primary afferents. In contrast the P2RX4 and P2RX7 are mostly expressed in myeloid cells, where activation of these receptors triggers the release of various pro-inflammatory molecules...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29342113/mitochondria-oxidative-stress-and-the-kynurenine-system-with-a-focus-on-ageing-and-neuroprotection
#15
REVIEW
Katalin Sas, Elza Szabó, László Vécsei
In this review, the potential causes of ageing are discussed. We seek to gain insight into the main physiological functions of mitochondria and discuss alterations in their function and the genome, which are supposed to be the central mechanisms in senescence. We conclude by presenting the potential modulating role of the kynurenine pathway in the ageing processes. Mitochondrial dynamics are supposed to have important physiological roles in maintaining cell homeostasis. During ageing, a decrease in mitochondrial dynamics was reported, potentially compromising the function of mitochondria...
January 17, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29341894/protective-effects-of-antioxidin-rl-from-odorrana-livida-against-ultraviolet-b-irradiated-skin-photoaging
#16
Di Qin, Wen-Hui Lee, Zhiqin Gao, Weifen Zhang, Meiyu Peng, Tongyi Sun, Yuanyuan Gao
The unavoidable daily exposure of the skin to ultraviolet (UV) B radiation is proven to have deleterious effects. The action mechanism of antioxidin-RL, an antioxidant peptide purified from skin secretions of frog Odorrana livida with amino acid sequence of AMRLTYNRPCIYAT, is well characterized by NMR titration and mutation based on ABTS+ scavenging activities. In order to explore the protective effects of antioxidin-RL against UVB-irradiated skin photoaging, cell uptake assay was used to detect the location of antioxidin-RL molecules serving various biological functions in the cells...
January 13, 2018: Peptides
https://www.readbyqxmd.com/read/29341450/characterization-of-a-novel-papain-inducible-murine-model-of-eosinophilic-rhinosinusitis
#17
Anuj Tharakan, Alex Dobzanski, Nyall R London, Syed M Khalil, Nitya Surya, Andrew P Lane, Murugappan Ramanathan
BACKGROUND: Eosinophilic chronic rhinosinusitis (ECRS) is a disease characterized by eosinophilic inflammatory infiltrate and a local type 2 cytokine milieu. Current animal models fail to recapitulate many of the innate and adaptive immunologic hallmarks of the disease, thus hindering the development of effective therapeutics. In the present study, mice were exposed intranasally to the cysteine protease papain, which shares functional similarities with parasitic proteases and aeroallergens, to generate a rapidly inducible murine model of eosinophilic rhinosinusitis...
January 17, 2018: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29341443/stachyose-improves-inflammation-through-modulating-gut-microbiota-of-high-fat-diet-streptozotocin-induced-type-2-diabetes-in-rats
#18
Guimei Liu, Jia Bei, Li Liang, Guoyong Yu, Lu Li, Quanhong Li
SCOPE: The present study was undertaken to assess the effects of stachyose (STS) on type 2 diabetes in rats, and changes in the gut microbiota compared to metformin (MET). METHODS AND RESULTS: The type 2 diabetic model was successfully established via a high-fat diet (HFD) / streptozotocin (STZ) in Wistar rats, and STS or MET was administered for 4 weeks. Blood was collected to analyze biochemical parameters, pancreas for mRNA expression of related gene and contents of colon for gut microbiota...
January 16, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29340323/clinical-and-pathological-significance-of-autoantibodies-to-erythropoietin-receptor-in-type-2-diabetic-patients-with-ckd
#19
Akinori Hara, Kengo Furuichi, Akihiko Koshino, Haruka Yasuda, Trang Thi Thu Tran, Yasunori Iwata, Norihiko Sakai, Miho Shimizu, Shuichi Kaneko, Hiroyuki Nakamura, Takashi Wada
Introduction: We examined the impact of autoantibodies on the erythropoietin receptor (EPOR) in type 2 diabetic patients with chronic kidney disease (CKD). Methods: A total of 112 Japanese patients with type 2 diabetes who had CKD were enrolled in this study and followed for a mean of 45 months. Sera from these patients were screened for anti-EPOR antibodies using enzyme-linked immunosorbent assays. Results: Anti-EPOR antibodies were detected in 26 patients (23%)...
January 2018: KI Reports
https://www.readbyqxmd.com/read/29339732/glyburide-and-retinoic-acid-synergize-to-promote-wound-healing-by-anti-inflammation-and-rip140-degradation
#20
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
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