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https://www.readbyqxmd.com/read/28535664/characterization-of-alphax-i-domain-binding-to-receptors-for-advanced-glycation-end-products-rage
#1
Dolgorsuren Buyannemekh, Sang-Uk Nham
The b2 integrins are cell surface transmembrane proteins regulating leukocyte functions, such as adhesion and migration. Two members of b2 integrin, aMb2 and aXb2, share the leukocyte distribution profile and integrin aXb2 is involved in antigen presentation in dendritic cells and transendothelial migration of monocytes and macrophages to atherosclerotic lesions. Receptor for advanced glycation end products (RAGE), a member of cell adhesion molecules, plays an important role in chronic inflammation and atherosclerosis...
May 24, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28535619/prevalence-and-incidence-of-osteoporotic-fractures-in-patients-on-long-term-glucocorticoid-treatment-for-rheumatic-diseases-the-glucocorticoid-induced-osteoporosis-tool-giotto-study
#2
M Rossini, O Viapiana, M Vitiello, N Malavolta, G La Montagna, S Maddali Bongi, O Di Munno, R Nuti, C U Manzini, C Ferri, L Bogliolo, A Mathieu, F Cantatore, A Del Puente, M Muratore, W Grassi, B Frediani, G Saviola, P Delvino, L Mirone, G Ferraccioli, G Tripi, I Piazza, D Gatti
Osteoporosis and fractures are common and invalidating consequences of chronic glucorticoid (GC) treatment. Reliable information regarding the epidemiology of GC induced osteoporosis (GIOP) comes exclusively from the placebo group of randomized clinical trials while observational studies are generally lacking data on the real prevalence of vertebral fractures, GC dosage and primary diagnosis. The objective of this study was to evaluate the prevalence and incidence of osteoporotic fractures and to identify their major determinants (primary disease, GC dosage, bone mineral density, risk factors, specific treatment for GIOP) in a large cohort of consecutive patients aged >21 years, on chronic treatment with GC (≥5 mg prednisone - PN - equivalent) and attending rheumatology centers located all over Italy...
May 22, 2017: Reumatismo
https://www.readbyqxmd.com/read/28535616/drug-induced-osteonecrosis-of-the-jaw-the-state-of-the-art
#3
A Fassio, F Bertoldo, L Idolazzi, O Viapiana, M Rossini, D Gatti
Osteonecrosis of the jaw (ONJ) is a rare adverse event of antiresorptive drugs such as bisphosphonates (BP) and denosumab (DMAb). The diagnosis of ONJ is considered in cases where exposed bone in the maxillofacial region does not heal within 8 weeks in a patient previously treated with an antiresorptive agent. In patients with osteoporosis, ONJ is reported as a very rare adverse event while in oncologic patients with bone metastases or malignant hypercalcemia the incidence is significantly higher (up to the 1-10% of the patients)...
May 22, 2017: Reumatismo
https://www.readbyqxmd.com/read/28535603/realizing-full-coverage-of-stable-perovskite-film-by-modified-anti-solvent-process
#4
Long Ji, Ting Zhang, Yafei Wang, Peng Zhang, Detao Liu, Zhi Chen, Shibin Li
Lead-free solution-processed solid-state photovoltaic devices based on formamidinium tin triiodide (FASnI3) and cesium tin triiodide (CsSnI3) perovskite semiconductor as the light harvester are reported. In this letter, we used solvent engineering and anti-solvent dripping method to fabricate perovskite films. SnCl2 was used as an inhibitor of Sn(4+) in FASnI3 precursor solution. We obtained the best films under the function of toluene or chlorobenzene in anti-solvent dripping method and monitored the oxidation of FASnI3 films in air...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28535600/new-approach-to-resolve-the-humidity-problem-in-voc-determination-in-outdoor-air-samples-using-solid-adsorbent-tubes-followed-by-td-gc-ms
#5
Alba Maceira, Laura Vallecillos, Francesc Borrull, Rosa Maria Marcé
This study describes the humidity effect in the sampling process by adsorbent tubes followed by thermal desorption and gas chromatography-mass spectrometry (TD-GC-MS) for the determination of volatile organic compounds (VOCs) in air samples and evaluates possible solutions to this problem. Two multi-sorbent bed tubes, Tenax TA/Carbograph 1TD and Carbotrap B/Carbopack X/Carboxen 569, were tested in order to evaluate their behaviour in the presence of environmental humidity. Humidity problems were demonstrated with carbon-based tubes, while Tenax-based tubes did not display any influence...
May 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28535594/industrial-pm2-5-cause-pulmonary-adverse-effect-through-rhoa-rock-pathway
#6
Junyan Yan, Chia-Hsiang Lai, Shih-Chun Candice Lung, Chongjun Chen, Wen-Cheng Wang, Pin-I Huang, Chia-Hua Lin
According to the Chinese Ministry of Health, industrial pollution-induced health impacts have been the leading cause of death in China. While industrial fine particulate matter (PM2.5) is associated with adverse health effects, the major action mechanisms of different compositions of PM2.5 are currently unclear. In this study, we treated normal human lung epithelial BEAS-2B cells with industrial organic and water-soluble PM2.5 extracts under daily alveolar deposition dose to elucidate the molecular mechanisms underlying adverse pulmonary effects induced by PM2...
May 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28535578/coasting-withholding-gonadotrophins-for-preventing-ovarian-hyperstimulation-syndrome
#7
REVIEW
Arianna D'Angelo, Nazar N Amso, Rudaina Hassan
BACKGROUND: Ovarian hyperstimulation syndrome (OHSS) is an iatrogenic and potentially life threatening condition resulting from excessive ovarian stimulation. Reported incidence of moderate to severe OHSS ranges from 0.6% to 5% of in vitro fertilization (IVF) cycles. The factors contributing to OHSS have not been completely explained. The release of vasoactive substances secreted by the ovaries under human chorionic gonadotrophin (hCG) stimulation may play a key role in triggering this syndrome...
May 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28535569/reinstituting-the-bolus-new-reasoning-for-an-existing-technique
#8
Porter W McRoberts, Jason E Pope, Catalina Apostol
Improved intrathecal (IT) pump technology is increasing the accuracy of IT opioid bolus dosing and promising advances in pain therapy. Opioid bolus dosing can be used with a minimal continuous infusion or it can function as the sole therapy. Bolus-only dosing is characterized by minimal use of opioid (often less than 1 mg of IT morphine). It achieves adequate pain control while reducing tolerance and possibly opioid-induced hyperalgesia. It may prevent receptor saturation, and provide a "washing out" of the opioid receptor that prevents the observed dose escalation resulting from continuous infusions...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28535565/ephrinb-ephb-signaling-induces-hyperalgesia-through-erk5-creb-pathway-in-rats
#9
Li-Na Yu, Li-Hong Sun, Min Wang, Lie-Ju Wang, Ying Wu, Jing Yu, Wen-Na Wang, Feng-Jiang Zhang, Xue Li, Min Yan
BACKGROUND: There are numerous studies implicating that EphB receptors and ephrinB ligands play important roles in modulating the transduction of spinal nociceptive information. EphrinB-EphB signaling may contribute to hyperalgesia via various kinds of downstream molecules, the mechanisms of which have not been completely understood. OBJECTIVE: The aim of the present study was to identify whether ephrinB-EphB signaling could contribute to hyperalgesia through ERK5/CREB pathway...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28535561/effectiveness-of-lateral-decubitus-position-for-preventing-post-dural-puncture-headache-a-meta-analysis
#10
Andres Zorrilla-Vaca, Jeetinder Kaur Makkar
BACKGROUND: Post-dural puncture headache (PDPH) is a relatively common complication of lumbar punctures for spinal anesthesia or neurologic diagnosis. For many years, a high number of drugs has been evaluated to treat PDPH, yet there is a minority to prevent this complication. The lateral decubitus position instead of sitting position during lumbar puncture has become an interesting approach because of its feasibility and patient satisfaction. OBJECTIVES: In this meta-analysis we hypothesized that lateral decubitus position is an effective manner to prophylactically reduce the incidence of PDPH...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28535537/triggering-of-suicidal-erythrocyte-death-by-exemestane
#11
Abdulla Al Mamun Bhuyan, Rosi Bissinger, Hang Cao, Florian Lang
BACKGROUND/AIMS: The steroidal aromatase inactivator exemestane blocks estrogen biosynthesis and is thus employed for the prevention and treatment of breast cancer. Exemestane is in part effective by stimulation of suicidal cell death or apoptosis. Side effects of exemestane treatment include anemia. At least in theory, exemestane induced anemia could be secondary to stimulation of suicidal erythrocyte death or eryptosis, characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface...
May 11, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535529/looking-into-the-graft-without-a-biopsy-biomarkers-of-acute-rejection-in-renal-transplantation
#12
Andrea Angeletti, Paolo Cravedi
Immunosuppression in kidney transplantation is still largely driven by center-specific protocols and adjusted according to the presence of graft dysfunction, drug toxicity or infection. Due to the current inability to titrate immunosuppression to the needs of every single patient, this approach is burdened by an increased risk of under or over-immunosuppression. To extend allograft survival, immunosuppression should be decided based on reliable biomarkers capable of quantifying the alloimmune response and/or noninvasively diagnosing acute rejection...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535528/chronic-allograft-injury-an-overview-of-pathogenesis-and-treatment-strategies
#13
Hector M Madariaga, Leonardo V Riella
Chronic allograft injury (CAI) remains one of the biggest challenges in transplantation as it directly affects the long-term allograft survival, an area in which the scientific and transplantation communities have struggled to improve outcomes. Therefore, understanding the mechanisms of CAI is paramount to implement preventive measures and novel therapeutic options. In this review, we will address the latest evidence on CAI, potential etiologies and risk factors including non-adherence, antibody-mediated rejection, recurrence of glomerular disease, BK nephropathy, and calcineurin nephrotoxicity...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535516/citrate-anticoagulation-during-continuous-renal-replacement-therapy
#14
Davide Ricci, Laura Panicali, Maria Grazia Facchini, Elena Mancini
During extracorporeal dialysis, some anticoagulation strategy is necessary to prevent the coagulation of blood. Heparin has historically been used as an anticoagulant because of its efficacy combined with low cost. However, a variable incidence of hemorrhagic complications (5-30%) has been documented in patients undergoing continuous renal replacement therapy (CRRT) with heparin as an anticoagulant. Citrate has anticoagulation properties secondary to its ability to chelate calcium, which is necessary for the coagulation cascade...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535482/multiple-metal-exposures-and-their-correlation-with-monoamine-neurotransmitter-metabolism-in-chinese-electroplating-workers
#15
Lin-Lin Wu, Wei Gong, Si-Peng Shen, Zhong-He Wang, Jia-Xi Yao, Jun Wang, Jing Yu, Rong Gao, Gang Wu
Excessive metal exposure has been recognized as one of the detrimental factors for brain damage. However, the potential adverse effects induced by heavy metals on monoamine neurotransmitter pathways remains poorly understood. Our study aimed to investigate the possible association between metal exposure and neurotransmitter metabolism. By a cross-sectional investigation, 224 electroplating workers and 213 non-electroplating exposure workers were recruited in the exposure and control groups. Metal exposure levels were analyzed using inductively-coupled plasma mass spectrometry and monoamine neurotransmitter pathway metabolites were measured by ultra-performance liquid chromatography tandem mass spectrometry in human urine samples...
April 26, 2017: Chemosphere
https://www.readbyqxmd.com/read/28535475/relationships-between-parental-attitudes-family-functioning-and-internet-gaming-disorder-in-adolescents-attending-school
#16
Céline Bonnaire, Olivier Phan
While recent data suggest a high prevalence of adolescent with Internet gaming disorder, little is known about interpersonal factors that contributes or protect to this disorder. Thus, the aim of this study was to examine the relationships between parental attitudes, adolescent perception of family functioning and Internet gaming disorder (IGD) and explore gender differences. From a sample of 434 adolescents attending school (n =434; age 13.2 years), 383 non-problematic gamers (NPG, 196 males; 187 females) were compared with 37 problematic gamers (PG, 29 males; 8 females)...
May 17, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28535448/bipolar-postpartum-depression-an-update-and-recommendations
#17
REVIEW
Verinder Sharma, Minakshi Doobay, Christine Baczynski
BACKGROUND: Over the past few years there has been a surge of interest in the study of bipolar postpartum depression (PPD); however, questions remain about its prevalence, screening, clinical features, and treatment. METHODS: Three electronic databases, MEDLINE/PubMed (1966-2016), PsycINFO (1806-2016), and the Cochrane Database of Systematic Reviews, were searched using a combination of the keywords bipolar, depression, postpartum, peripartum, prevalence, screening, diagnosis, treatment, drugs, and psychotherapy...
May 11, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28535416/the-role-of-timing-in-the-treatment-of-spinal-cord-injury
#18
REVIEW
Amene Saghazadeh, Nima Rezaei
Regeneration failure after primary spinal cord injury (SCI) leads to diverse clinical complications in a severity- and level of SCI-dependent manner. The cost of treating both of them (initial regeneration failure and following complications) would be prohibitive, particularly in less developed nations. The well-recognized circumstances arose from primary SCI include excitotoxicity and inflammation. SCI increases concentrations of extracellular amino acids (EAAs) in the severity-dependent manner and the maximum level of EAAs at the injury site will be reduced by distance from the injury site...
May 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28535399/dry-skin-and-pressure-ulcer-risk-a-multi-center-cross-sectional-prevalence-study-in-german-hospitals-and-nursing-homes
#19
Anna Lechner, Nils Lahmann, Konrad Neumann, Ulrike Blume-Peytavi, Jan Kottner
BACKGROUND: Pressure ulcers are a serious health problem in medical and nursing care. Therefore, effective prevention is crucial. Major pressure ulcer risk factors have been identified but the particular role of dry skin (xerosis cutis) is unclear. OBJECTIVES: To investigate possible associations between dry skin and pressure ulcers focusing on the sacrum/trochanter and at heel/ankle skin areas. DESIGN: Two multicenter cross-sectional studies...
May 18, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28535376/dephosphorylation-of-the-ndc80-tail-stabilizes-kinetochore-microtubule-attachments-via-the-ska-complex
#20
Dhanya K Cheerambathur, Bram Prevo, Neil Hattersley, Lindsay Lewellyn, Kevin D Corbett, Karen Oegema, Arshad Desai
During cell division, genome inheritance is orchestrated by microtubule attachments formed at kinetochores of mitotic chromosomes. The primary microtubule coupler at the kinetochore, the Ndc80 complex, is regulated by Aurora kinase phosphorylation of its N-terminal tail. Dephosphorylation is proposed to stabilize kinetochore-microtubule attachments by strengthening electrostatic interactions of the tail with the microtubule lattice. Here, we show that removal of the Ndc80 tail, which compromises in vitro microtubule binding, has no effect on kinetochore-microtubule attachments in the Caenorhabditis elegans embryo...
May 22, 2017: Developmental Cell
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