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https://www.readbyqxmd.com/read/28339989/pain-management-strategies-and-health-care-use-in-community-dwelling-individuals-living-with-chronic-pain
#1
Elizabeth G Mann, Ana Johnson, Ian Gilron, Elizabeth G VanDenKerkhof
Objective. : To describe factors associated with high clinic and emergency room (ER) use among individuals with chronic pain. Design. : This study is part of a larger cross-sectional survey on the epidemiology of chronic pain in Canada. The current analysis was guided by the Andersen-Newman Service Utilization Model. Methods. : Respondents (N = 702) were grouped into high (top 10%) and low (bottom 90%) users based on the number of visits made to clinics and ERs over the past year...
March 3, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28339439/dezocine-antagonizes-morphine-analgesia-upon-simultaneous-administration-in-rodent-models-of-acute-nociception
#2
Na-Na Li, Ya-Qin Huang, Ling-Er Huang, Shao-Hui Guo, Maxwell R Shen, Chen-Ling Guo, Sheng-Mei Zhu, Yong-Xing Yao
BACKGROUND: Dezocine is a powerful analgesic that can be less addictive than morphine, yet how the two drugs interact in vivo is poorly understood. Here we administered dezocine alone or in combination with morphine to different acute nociception paradigms to explore the interactions of the 2 drugs upon co-administration. OBJECTIVE: To evaluate how dezocine interacts with morphine in different acute nociception paradigms. STUDY DESIGN: Laboratory animal study...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339041/tanshinone-iia-increases-protein-expression-levels-of-perk-atf6-ire1%C3%AE-chop-caspase%C3%A2-3-and-caspase%C3%A2-12-in-pancreatic-cancer-bxpc%C3%A2-3-cell%C3%A2-derived-xenograft-tumors
#3
Tsung-Lang Chiu, Chin Cheng Su
Tanshinone (Tan)-IIA is a derivative of phenanthrenequinone and the main active ingredient isolated from Salviae miltiorrhizae radix (Danshen). Previous studies have demonstrated that Tan‑IIA increased the protein expressions levels of protein kinase RNA‑like endoplasmic reticulum kinase (PERK), activating transcription factor (ATF) 6, caspase‑12 and CCAAT‑enhancer‑binding protein homologous protein (CHOP), to induce endoplasmic reticulum (ER) stress and apoptosis in human pancreatic cancer BxPC‑3 cells...
March 22, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338173/valsartan-reduces-at1-aa-induced-apoptosis-through-suppression-oxidative-stress-mediated-er-stress-in-endothelial-progenitor-cells
#4
Z-C Wang, J Qi, L-M Liu, J Li, H-Y Xu, B Liang, B Li
OBJECTIVE: Valsartan has been reported to have the function of treating hypertension and improving the prognosis of patients. Many studies indicated that valsartan can also increase angiotensin II, andosterone and plasma renin activity (PRA). Autoantibodies against the angiotensin II type 1 receptor (AT1-AA) have been showed to increase reactive oxygen species (ROS) and calcium (Ca2+) and result in apoptosis in vascular smooth muscle cells. In this study, we attempted to explore the effect of valsartan on AT1-AA-induced apoptosis in endothelial progenitor cells...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28337975/a-chemical-chaperone-improves-muscle-function-in-mice-with-a-ryr1-mutation
#5
Chang Seok Lee, Amy D Hanna, Hui Wang, Adan Dagnino-Acosta, Aditya D Joshi, Mark Knoblauch, Yan Xia, Dimitra K Georgiou, Jianjun Xu, Cheng Long, Hisayuki Amano, Corey Reynolds, Keke Dong, John C Martin, William R Lagor, George G Rodney, Ergun Sahin, Caroline Sewry, Susan L Hamilton
Mutations in the RYR1 gene cause severe myopathies. Mice with an I4895T mutation in the type 1 ryanodine receptor/Ca(2+) release channel (RyR1) display muscle weakness and atrophy, but the underlying mechanisms are unclear. Here we show that the I4895T mutation in RyR1 decreases the amplitude of the sarcoplasmic reticulum (SR) Ca(2+) transient, resting cytosolic Ca(2+) levels, muscle triadin content and calsequestrin (CSQ) localization to the junctional SR, and increases endoplasmic reticulum (ER) stress/unfolded protein response (UPR) and mitochondrial ROS production...
March 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28337559/dietary-fiber-intake-and-risk-of-breast-cancer-defined-by-estrogen-and-progesterone-receptor-status-the-japan-public-health-center-based-prospective-study
#6
Saki Narita, Manami Inoue, Eiko Saito, Sarah K Abe, Norie Sawada, Junko Ishihara, Motoki Iwasaki, Taiki Yamaji, Taichi Shimazu, Shizuka Sasazuki, Kenji Shibuya, Shoichiro Tsugane
PURPOSE: Epidemiological studies have suggested a protective effect of dietary fiber intake on breast cancer risk while the results have been inconsistent. Our study aimed to investigate the association between dietary fiber intake and breast cancer risk and to explore whether this association is modified by reproductive factors and hormone receptor status of the tumor. METHODS: A total of 44,444 women aged 45 to 74 years from the Japan Public Health Center-based Prospective Study were included in analyses...
March 23, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28337542/%C3%AE-synuclein-binds-to-the-er-mitochondria-tethering-protein-vapb-to-disrupt-ca-2-homeostasis-and-mitochondrial-atp-production
#7
Sébastien Paillusson, Patricia Gomez-Suaga, Radu Stoica, Daniel Little, Paul Gissen, Michael J Devine, Wendy Noble, Diane P Hanger, Christopher C J Miller
α-Synuclein is strongly linked to Parkinson's disease but the molecular targets for its toxicity are not fully clear. However, many neuronal functions damaged in Parkinson's disease are regulated by signalling between the endoplasmic reticulum (ER) and mitochondria. This signalling involves close physical associations between the two organelles that are mediated by binding of the integral ER protein vesicle-associated membrane protein-associated protein B (VAPB) to the outer mitochondrial membrane protein, protein tyrosine phosphatase-interacting protein 51 (PTPIP51)...
March 23, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28337376/curcumin-derivative-wz35-efficiently-suppresses-colon-cancer-progression-through-inducing-ros-production-and-er-stress-dependent-apoptosis
#8
Junru Zhang, Zhiguo Feng, Chunhua Wang, Huiping Zhou, Weidong Liu, Karvannan Kanchana, Xuanxuan Dai, Peng Zou, Junlian Gu, Lu Cai, Guang Liang
Colon cancer is characterized by its fast progression and poor prognosis, and novel agents of treating colon cancer are urgently needed. WZ35, a synthetic curcumin derivative, has been reported to exhibit promising antitumor activity. Here, we investigated the in vitro and in vivo activities of WZ35 and explored the underlying mechanisms in colon cancer cell lines. WZ35 treatment significantly decreased the cell viability associated with G2/M cell cycle arrest and apoptosis induction in colon cancer cell lines...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28337301/endoplasmic-reticulum-stress-a-new-wrestler-in-the-pathogenesis-of-idiopathic-pulmonary-fibrosis
#9
Lei Zhang, Yi Wang, Nuruliarizki Shinta Pandupuspitasari, Guorao Wu, Xudong Xiang, Quan Gong, Weining Xiong, Cong-Yi Wang, Ping Yang, Boxu Ren
Idiopathic pulmonary fibrosis (IPF) has attracted extensive attention for its unexplained progressive lung scarring, short median survival and its unresponsiveness to traditional therapies. Despite extensive studies, the mechanisms underlying IPF pathoetiologies, however, remain poorly understood. Recent advances delineated a potential function of endoplasmic reticulum (ER) stress in meeting the need of fibrotic response, which pinpointed a critical role for the unfolded protein response (UPR) pathways in IPF pathogenesis...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337298/xbp1-lox-axis-is-critical-in-er-stress-induced-growth-of-lung-adenocarcinoma-in-3d-culture
#10
Yi Yang, Bai-Jun Cheng, Hong Jian, Zhi-Wei Chen, Yi Zhao, Yong-Feng Yu, Zi-Ming Li, Mei-Lin Liao, Shun Lu
Rapid growth of tumor cells needs to consume large amounts of oxygen and glucose, due to lack of blood supply within the tumor, cells live in an environment that lack of oxygen and nutrients. This environment results in endoplasmic reticulum (ER) stress and activates the UPR (unfolded protein response). More and more evidence suggests UPR provides a growth signal pathway required for tumor growth. In the present study, we investigated the relationship between XBP1, one transcription factor in UPR, and the expression of LOX...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337259/intranasal-basic-fibroblast-growth-factor-attenuates-endoplasmic-reticulum-stress-and-brain-injury-in-neonatal-hypoxic-ischaemic-injury
#11
Zhenlang Lin, Yingying Hu, Zhouguang Wang, Shulin Pan, Hao Zhang, Libing Ye, Hongyu Zhang, Mingchu Fang, Huai Jiang, Junming Ye, Jian Xiao, Li Liu
Brain injury secondary to birth asphyxia is the major cause of death and long-term disability in newborns. Intranasal drug administration enables agents to bypass the blood-brain barrier (BBB) and enter the brain directly. In this study, we determined whether intranasal basic fibroblast growth factor (bFGF) could exert neuroprotective effects in neonatal rats after hypoxic-ischaemic (HI) brain injury and assessed whether attenuation of endoplasmic reticulum (ER) stress was associated with these neuroprotective effects...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337029/the-impact-of-protein-quantity-during-energy-restriction-on-genome-wide-gene-expression-analysis-in-adipose-tissue-of-obese-humans
#12
I P G Van Bussel, E M P Backx, C P G M De Groot, M Tieland, M Müller, L A Afman
BACKGROUND: Overweight and obesity is a growing health problem worldwide. The most effective strategy to reduce weight is energy restriction (ER). ER has been shown to be beneficial in disease prevention and it reduces chronic inflammation. Recent studies suggest that reducing the protein quantity of a diet contributes to the beneficial effects by ER. The organ most extensively affected during ER is white adipose tissue (WAT). OBJECTIVE: The first objective was to assess changes in gene expression between a high protein diet and a normal protein diet during ER...
March 24, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28336924/rtn1a-mediated-endoplasmic-reticulum-stress-in-podocyte-injury-and-diabetic-nephropathy
#13
Ying Fan, Jing Zhang, Wenzhen Xiao, Kyung Lee, Zhengzhe Li, Jiejun Wen, Li He, Dingkun Gui, Rui Xue, Guihua Jian, Xiaohua Sheng, John Cijiang He, Niansong Wang
We previously reported a critical role of reticulon (RTN) 1A in mediating endoplasmic reticulum (ER) stress in kidney tubular cells and the expression of RTN1A correlates with the renal function and the severity of kidney injury in patients with diabetic nephropathy (DN). Here, we determined the roles of RTN1A and ER stress in podocyte injury and DN. We used db/db mice with early unilateral nephrectomy (Unx) as a murine model of progressive DN and treated mice with tauroursodeoxycholic acid (TUDCA), a specific inhibitor of ER stress...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336867/synthesis-of-multicolor-core-shell-naluf%C3%A2-yb-3-ln-3-caf%C3%A2-upconversion-nanocrystals
#14
Hui Li, Shuwei Hao, Chunhui Yang, Guanying Chen
The ability to synthesize high-quality hierarchical core/shell nanocrystals from an efficient host lattice is important to realize efficacious photon upconversion for applications ranging from bioimaging to solar cells. Here, we describe a strategy to fabricate multicolor core @ shell α-NaLuF₄:Yb(3+)/Ln(3+)@CaF₂ (Ln = Er, Ho, Tm) upconversion nanocrystals (UCNCs) based on the newly established host lattice of sodium lutetium fluoride (NaLuF₄). We exploited the liquid-solid-solution method to synthesize the NaLuF₄ core of pure cubic phase and the thermal decomposition approach to expitaxially grow the calcium fluoride (CaF₂) shell onto the core UCNCs, yielding cubic core/shell nanocrystals with a size of 15...
February 7, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28336670/pi3k-pathway-regulates-er-dependent-transcription-in-breast-cancer-through-the-epigenetic-regulator-kmt2d
#15
Eneda Toska, Hatice U Osmanbeyoglu, Pau Castel, Carmen Chan, Ronald C Hendrickson, Moshe Elkabets, Maura N Dickler, Maurizio Scaltriti, Christina S Leslie, Scott A Armstrong, José Baselga
Activating mutations in PIK3CA, the gene encoding phosphoinositide-(3)-kinase α (PI3Kα), are frequently found in estrogen receptor (ER)-positive breast cancer. PI3Kα inhibitors, now in late-stage clinical development, elicit a robust compensatory increase in ER-dependent transcription that limits therapeutic efficacy. We investigated the chromatin-based mechanisms leading to the activation of ER upon PI3Kα inhibition. We found that PI3Kα inhibition mediates an open chromatin state at the ER target loci in breast cancer models and clinical samples...
March 24, 2017: Science
https://www.readbyqxmd.com/read/28336574/switching-head-group-selectivity-in-mammalian-sphingolipid-biosynthesis-by-active-site-engineering-of-sphingomyelin-synthases
#16
Matthijs Kol, Radhakrishnan Panatala, Mirjana Nordmann, Leoni Swart, Leonie Van Suijlekom, Birol Cabukusta, Angelika Hilderink, Tanja Gabrietz, John G M Mina, Pentti Somerharju, Sergei Korneev, Fikadu G Tafesse, Joost C M Holthuis
Sphingomyelin (SM) is a fundamental component of mammalian cell membranes that contributes to mechanical stability, signaling and sorting. Its production involves the transfer of phosphocholine from phosphatidylcholine onto ceramide, a reaction catalyzed by SM synthase SMS1 in the Golgi and SMS2 at the plasma membrane. Mammalian cells also synthesize trace amounts of the SM analog ceramide phosphoethanolamine (CPE), but the physiological relevance of CPE production is unclear. Previous work revealed that SMS2 is a bifunctional enzyme producing both SM and CPE whereas a closely related enzyme, SMSr/SAMD8, acts as a monofunctional CPE synthase in the ER...
March 23, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28336490/novel-therapeutic-interventions-for-pseudoachondroplasia
#17
Karen L Posey, Jacqueline T Hecht
Pseudoachondroplasia (PSACH), a severe short-limbed dwarfing condition, is associated with life-long joint pain and early onset osteoarthritis. PSACH is caused by mutations in cartilage oligomeric matrix protein (COMP), a pentameric matricellular protein expressed primarily in cartilage and other musculoskeletal tissues. Mutations in COMP diminish calcium binding and as a result perturb protein folding and export to the extracellular matrix. Mutant COMP is retained in the endoplasmic reticulum (ER) of growth plate chondrocytes resulting in massive intracellular COMP retention...
March 21, 2017: Bone
https://www.readbyqxmd.com/read/28336475/intraoperative-rupture-of-ovarian-dermoid-cysts-in-the-pediatric-and-adolescent-population-should-this-change-your-surgical-management
#18
Krista J Childress, Gisselle Perez-Milicua, Julie Hakim, Oluyemisi Adeyemi-Fowode, Jennifer L Bercaw-Pratt, Xiomara M Santos, Jennifer E Dietrich
STUDY OBJECTIVE: 1) To determine the incidence of chemical peritonitis after cystectomy for ovarian dermoid cysts with intraoperative cyst rupture in the pediatric and adolescent population. 2) To examine the intraoperative and postoperative outcomes of cystectomies performed for ovarian dermoid cysts by laparoscopy and laparotomy, especially those with intraoperative cyst rupture. DESIGN: A retrospective cohort study of females who underwent ovarian cystectomy with proven ovarian dermoid pathology between July 2007 and July 2015...
March 20, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28336440/astroglial-ca-2-signaling-is-generated-by-the-coordination-of-ip3r-and-store-operated-ca-2-channels
#19
Shigeo Sakuragi, Fumihiro Niwa, Yoichi Oda, Hiroko Bannai, Katsuhiko Mikoshiba
Astrocytes play key roles in the central nervous system and regulate local blood flow and synaptic transmission via intracellular calcium (Ca(2+)) signaling. Astrocytic Ca(2+) signals are generated by multiple pathways: Ca(2+) release from the endoplasmic reticulum (ER) via the inositol 1, 4, 5-trisphosphate receptor (IP3R) and Ca(2+) influx through various Ca(2+) channels on the plasma membrane. However, the Ca(2+) channels involved in astrocytic Ca(2+) homeostasis or signaling have not been fully characterized...
March 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28336330/requirement-of-cytosolic-phospholipase-a2-gamma-in-lipid-droplet-formation
#20
Xi Su, Shuhui Liu, Xianwen Zhang, Sin Man Lam, Xue Hu, Yuan Zhou, Jizheng Chen, Yun Wang, Chunchen Wu, Guanghou Shui, Mengji Lu, Rongjuan Pei, Xinwen Chen
Lipid droplet (LD) accumulation in hepatocytes is a typical character of steatosis. Hepatitis C virus (HCV) infection, one of the risk factors related to steatosis, induced LD accumulation in cultured cells. However, the mechanisms of which HCV induce LD formation are not fully revealed. Previously we identified cytosolic phospholipase A2 gamma (PLA2G4C) as a host factor upregulated by HCV infection and involved in HCV replication. Here we further revealed that PLA2G4C plays an important role in LD biogenesis and refined the functional analysis of PLA2G4C in LD biogenesis and HCV assembly...
March 20, 2017: Biochimica et Biophysica Acta
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