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https://www.readbyqxmd.com/read/27918051/detection-of-zn-2-release-in-nitric-oxide-treated-cells-and-proteome-dependence-on-fluorescent-sensor-and-proteomic-sulfhydryl-groups
#1
Mohammad R Karim, David H Petering
Nitric oxide (NO) is both an important regulatory molecule in biological systems and a toxic xenobiotic. Its oxidation products react with sulfhydryl groups and either nitrosylate or oxidize them. The aerobic reaction of NO supplied by diethylamine NONOate (DEA-NO) with pig kidney LLC-PK1 cells and Zn-proteins within the isolated proteome was examined with three fluorescent zinc sensors, zinquin (ZQ), TSQ, and FluoZin-3 (FZ-3). Observations of Zn(2+) labilization from Zn-proteins depended on the specific sensor used...
December 5, 2016: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/27912887/nephroprotective-effects-of-%C3%AE-bisabolol-against-ischemic-reperfusion-acute-kidney-injury
#2
Tiago Lima Sampaio, Ramon Róseo Paula Pessoa Bezerra de Menezes, Marcus Felipe Bezerra da Costa, Gdayllon Cavalcante Meneses, Mauren Cristina Villalta Arrieta, Adriano José Maia Chaves Filho, Glayciane Bezerra de Morais, Alexandre Braga Libório, Renata Sousa Alves, Janaína Serra Azul Monteiro Evangelista, Alice Maria Costa Martins
BACKGROUND: Ischemia/reperfusion (I/R) in kidney is commonly related to acute kidney injury (AKI), essentially through oxidative stress. (-)-α-Bisabolol is a sesquiterpene isolated from the essential oil of a variety of plants, including chamomile, which has important antioxidant activity. STUDY DESIGN: This study intends to evaluate the nephroprotective activity of (-)-α-bisabolol (Bis) in both in vivo and in vitro models of kidney I/R. METHODS: Male Wistar rats were submitted to right nephrectomy, followed by ischemia by clamping of the renal artery in the left kidney for 60min...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27910826/enhancing-radiotherapy-for-lung-cancer-using-immunoadjuvants-delivered-in-situ-from-new-design-radiotherapy-biomaterials-a-preclinical-study
#3
Yao Hao, Sayeda Yasmin-Karim, Michele Moreau, Neeharika Sinha, Erno Sajo, Wilfred Ngwa
Studies show that radiotherapy of a primary tumor in combination with immunoadjuvants (IA) can result in increased survival or immune-mediated regression of metastasis outside the radiation field, a phenomenon known as abscopal effect. However, toxicities due to repeated systematic administration of IA have been shown to be a major obstacle in clinical trials. To minimize the toxicities and prime a more potent immune response, Ngwa et al have proposed that inert radiotherapy biomaterials such as fiducials could be upgraded to multifunctional ones loaded with IA for in situ delivery directly into the tumor sub-volume at no additional inconvenience to patients...
December 21, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27903490/can-a-free-wearable-activity-tracker-change-behavior-the-impact-of-trackers-on-adults-in-a-physician-led-wellness-group
#4
Lisa Gualtieri, Sandra Rosenbluth, Jeffrey Phillips
BACKGROUND: Wearable activity trackers (trackers) are increasingly popular devices used to track step count and other health indicators. Trackers have the potential to benefit those in need of increased physical activity, such as adults who are older and face significant health challenges. These populations are least likely to purchase trackers and most likely to face challenges in using them, yet may derive educational, motivational, and health benefits from their use once these barriers are removed...
November 30, 2016: JMIR Research Protocols
https://www.readbyqxmd.com/read/27897406/integrated-care-for-geriatric-frailty-and-sarcopenia-a-randomized-control-trial
#5
Ding-Cheng Derrick Chan, Hsiao-Hui Tsou, Chirn-Bin Chang, Rong-Sen Yang, Jau-Yih Tsauo, Ching-Yu Chen, Chin-Fu Hsiao, Ya-Ting Hsu, Chia-Hui Chen, Shu-Fang Chang, Chao Agnes Hsiung, Ken N Kuo
BACKGROUND: Exercise, nutrition, and psychological interventions may all have positive impacts on frailty and sarcopenia. However, it is not known whether an integrated care programme with all three components can be beneficial and the intensity of such programme is also not certain. In this study, we aim to determine the effectiveness of two levels of integrated care on frailty and sarcopenia. METHODS: A randomized control trial was conducted at two community hospitals in Taiwan...
August 26, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27895157/beneficial-effects-of-myo-inositol-oxygenase-deficiency-in-cisplatin-induced-aki
#6
Rajesh K Dutta, Vinay K Kondeti, Isha Sharma, Navdeep S Chandel, Susan E Quaggin, Yashpal S Kanwar
Overexpression of the proximal tubular enzyme myo-inositol oxygenase (MIOX) induces oxidant stress in vitro However, the relevance of MIOX to tubular pathobiology remains enigmatic. To investigate the role of MIOX in cisplatin-induced tubular AKI, we generated conditional MIOX-overexpressing transgenic (MIOX-TG) mice and MIOX-knockout (MIOX(-/-)) mice with tubule-specific MIOX overexpression or knockout, respectively. Compared with cisplatin-treated wild-type (WT) mice, cisplatin-treated MIOX-TG mice had even greater increases in urea, creatinine, and KIM-1 levels and more tubular injury and apoptosis, but these effects were attenuated in cisplatin-treated MIOX(-/-) mice...
November 28, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27886548/design-synthesis-and-evaluation-of-asymmetric-ef24-analogues-as-potential-anti-cancer-agents-for-lung-cancer
#7
Jianzhang Wu, Shoubiao Wu, Lingyi Shi, Shanshan Zhang, Jiye Ren, Song Yao, Di Yun, Lili Huang, Jiabing Wang, Wulan Li, Xiaoping Wu, Peihong Qiu, Guang Liang
The nuclear factor-kappa B (NF-κB) signaling pathway has been targeted for the therapy of various cancers, including lung cancer. EF24 was considered as a potent inhibitor of NF-κB signaling pathway. In this study, a series of asymmetric EF24 analogues were synthesized and evaluated for their anti-cancer activity against three lung cancer cell lines (A549, LLC, H1650). Most of the compounds exhibited good anti-tumor activity. Among them, compound 81 showed greater cytotoxicity than EF24. Compound 81 also possessed a potent anti-migration and anti-proliferative ability against A549 cells in a concentration-dependent manner...
October 15, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27878261/bacterial-ghosts-as-adjuvants-in-syngeneic-tumour-cell-lysate-based-anticancer-vaccination-in-a-murine-lung-carcinoma-model
#8
Jan Aleksander Kraśko, Karolina Žilionytė, Adas Darinskas, Marius Strioga, Svetlana Rjabceva, Iosif Zalutsky, Marina Derevyanko, Vladimir Kulchitsky, Werner Lubitz, Pavol Kudela, Edita Miseikyte-Kaubriene, Olha Karaman, Hennadii Didenko, Hryhorii Potebnya, Vasyl Chekhun, Vita Pašukonienė
Instead of relying on external anticancer factors for treatment, immunotherapy utilizes the host's own immune system and directs it against given tumour antigens. This study demonstrated that it is possible to overcome the documented immunosuppressive properties of tumour cell lysate by supplementing it with appropriate adjuvant. Lewis lung carcinoma (LLC)‑challenged C57BL/6 mice were treated with LLC cryo‑lysate mixed with either bacterial ghosts (BGs) generated from E. coli Nissle 1917 or B. subtilis 70 kDa protein as adjuvants...
November 16, 2016: Oncology Reports
https://www.readbyqxmd.com/read/27854055/fixed-dose-combination-of-canagliflozin-and-metformin-for-the-treatment-of-type-2-diabetes-an-overview
#9
REVIEW
Jaime A Davidson, Lance Sloan
: Metformin is recommended as a first-line therapy for patients with type 2 diabetes mellitus (T2DM). However, many patients do not achieve glycemic goals with metformin monotherapy and require subsequent combination therapy with other antihyperglycemic agents (AHAs). For newly diagnosed patients with high blood glucose, initial combination therapy may be required to achieve glycemic control. The American Association for Clinical Endocrinologists algorithm for the treatment of T2DM recommends metformin plus a sodium glucose co-transporter 2 (SGLT2) inhibitor as the first oral combination in patients who present with HbA1c ≥7...
November 16, 2016: Advances in Therapy
https://www.readbyqxmd.com/read/27853455/assessment-of-the-rnasound-rna-sampling-card-for-the-preservation-of-influenza-virus-rna
#10
Hilda Lau, Aeron C Hurt
Shipping influenza virus specimens, isolates or purified RNA is normally conducted at ultra-low temperatures using dry ice to ensure minimal degradation of the samples but this is expensive and requires special packaging and shipping conditions. Therefore, alternative methods for shipping influenza viruses or RNA at ambient temperatures would be desirable. The RNASound RNA Sampling Card (FortiusBio LLC, San Diego, CA, USA) is a device that enables specimens or isolates to be applied to a card, whereby viruses are inactivated, while RNA is preserved and purified RNA can also easily be eluted...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27849593/heparanase-is-required-for-activation-and-function-of-macrophages
#11
Lilach Gutter-Kapon, Dror Alishekevitz, Yuval Shaked, Jin-Ping Li, Ami Aronheim, Neta Ilan, Israel Vlodavsky
The emerging role of heparanase in tumor initiation, growth, metastasis, and chemoresistance is well recognized and is encouraging the development of heparanase inhibitors as anticancer drugs. Unlike the function of heparanase in cancer cells, very little attention has been given to heparanase contributed by cells composing the tumor microenvironment. Here we used a genetic approach and examined the behavior and function of macrophages isolated from wild-type (WT) and heparanase-knockout (Hpa-KO) mice. Hpa-KO macrophages express lower levels of cytokines (e...
November 29, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27836810/external-ca-2-regulates-polycystin-2-trpp2-cation-currents-in-llc-pk1-renal-epithelial-cells
#12
Xiao Qing Dai, Paula L Perez, Gonzalo Soria, Noelia Scarinci, Mariano Smoler, D Cristian Morsucci, Kunimasa Suzuki, María Del Rocío Cantero, Horacio F Cantiello
Polycystin-2 (PC2, TRPP2) is a nonselective cation channel whose dysfunction is associated with the onset of autosomal dominant polycystic kidney disease (ADPKD). PC2 contributes to Ca(2+) transport and cell signaling in renal epithelia and other tissues. Little is known however, as to the external Ca(2+) regulation of PC2 channel function. In this study, we explored the effect of external Ca(2+) on endogenous PC2 in wild type LLC-PK1 renal epithelial cells. We obtained whole cell currents at different external Ca(2+) concentrations, and observed that the basal whole cell conductance in normal Ca(2+)(1...
November 9, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27834195/cftr-associated-ligand-cal-is-a-negative-regulator-of-mrp2-expression
#13
Man Li, Carol J Soroka, Kathy Harry, James L Boyer
The multidrug resistance-associated protein 2 (Mrp2) is an ATP-binding cassette transporter that transports a wide variety of organic anions across the apical membrane of epithelial cells. The expression of Mrp2 on the plasma membrane is regulated by protein-protein interactions. CFTR-associated ligand (CAL) interacts with transmembrane proteins via its PDZ domain and reduces their cell surface expression by increasing lysosomal degradation and intracellular retention. Our results showed that CAL is localized at the trans-Golgi network of rat hepatocytes...
November 9, 2016: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/27829958/antioxidant-and-renoprotective-effects-of-mushroom-extract-implication-in-prevention-of-nephrolithiasis
#14
Ariel Schulman, Matthew Chaimowitz, Muhammad Choudhury, Majid Eshghi, Sensuke Konno
BACKGROUND: The pathogenesis of nephrolithiasis (kidney stone) remains elusive, while several therapeutic options are available but not effective as we expected. Accumulating data yet suggest that oxidative stress (generation of oxygen free radicals) may play a primary role in its occurrence. Particularly, calcium oxalate (CaOx) is a key element in the most common form (> 75%) of kidney stones, and its crystal form known as CaOx monohydrate (COM) has been shown to exert oxidative stress, facilitating CaOx stone formation...
December 2016: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/27829340/preclinical-evaluation-of-avn-322-novel-and-highly-selective-5-ht6-receptor-antagonist-for-the-treatment-of-alzheimer-s-disease
#15
Alexandre V Ivachtchenko, Yan A Ivanenkov, Mark S Veselov
Alla Chem LLC, Hallandale Beach, USA; bAvineuro Pharmaceuticals, Inc., Hallandale Beach, USA; cMoscow Institute of Physics and Technology (State University), Dolgoprudny city, Russian Federation. Abstract: In recent years, 5-hydroxytryptamine subtype 6 receptor (5-HT6 receptor, 5-HT6R) has rapidly emerged as a promising therapeutic target for the treatment of neuropathological disorders, including Alzheimer's disease (AD). Evidence indicates that 5-HT6 receptors are deeply implicated in the processes of learning and memory, while 5-HT6R antagonists were shown to improve cognition in animal models of cognitive impairment...
November 7, 2016: Current Alzheimer Research
https://www.readbyqxmd.com/read/27822063/the-accumulation-of-macrophages-attenuates-the-effect-of-recombinant-human-endostatin-on-lung-cancer
#16
Yanyang Liu, Li Tu, Li Wang, Jianlin Long, Jiantao Wang, Yuyi Wang, Feng Luo, Dan Cao
BACKGROUND: Although anti-angiogenic therapy is widely applied clinically, its efficacy has been less than expected. Screening for regulatory factors and sensitive indicators to define the effectiveness of these drugs is required. Through a retrospective study of clinical data, we found that patients with a higher peripheral monocyte-to-lymphocyte ratio (MLR) obtained less benefit from recombinant human endostatin (rhES, Endostar(®)), an anti-angiogenic drug, in lung cancer. Because MLR is positively correlated with macrophage count in tumors, this result suggests that macrophages may influence the effectiveness of rhES therapy in lung cancer...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27816480/a-monoclonal-antibody-targeting-the-dimer-interface-of-epidermal-growth-factor-receptor-egfr
#17
Tujing Guo, Lin Zhao, Yawen Zhang, Guoqiang Liu, Yuanhang Yao, Huangjin Li
Epidermal growth factor receptor (EGFR) is an attractive target for the treatment of epithelial cancers. However, EGFR antagonists have low clinical response rates and frequently induce resistance mainly caused by the hypermutation of the extracellular and intracellular domains and the heterodimerization of EGFR. Dimerization plays a key role in the activation of the EGFR family of receptors. Thus, targeting the highly conserved dimer interface of EGFR maybe an attractive strategy for improving the clinical response of anti-EGFR therapies...
November 2, 2016: Immunology Letters
https://www.readbyqxmd.com/read/27815497/friction-blisters-on-the-hands-treated-successfully-using-2-octyl-cyanoacrylate-a-case-report
#18
Peter A Gearhart, Michael P Gaspar, Sidney M Jacoby
BACKGROUND: Friction blisters on the hand are challenging to treat as conventional dressings are prone to saturation, contamination, and loosening with active hand use and other mechanical stresses. Alternative methods and materials for dressing hand blisters warrant exploration. CASE SUMMARY: A 48-year-old male surgeon presented with friction blisters over his bilateral thumbs. The patient complained of significant difficulty in keeping his dressings clean and dry, significant pain with hand hygiene, and functional limitations at work...
November 4, 2016: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/27804918/self-assembled-nanoparticles-comprising-aptide-sn38-conjugates-for-use-in-targeted-cancer-therapy
#19
Hyungjun Kim, Yonghyun Lee, Sukmo Kang, Minsuk Choi, Soyoung Lee, Sunghyun Kim, Vipul Gujrati, Jinjoo Kim, Sangyong Jon
Self-assembled nanoparticles (NPs) have been intensively utilized as cancer drug delivery carriers because hydrophobic anticancer drugs may be efficiently loaded into the particle cores. In this study, we synthesized and evaluated the therapeutic index of self-assembled NPs chemically conjugated to a fibronectin extra domain B-specific peptide (APTEDB) and an anticancer agent SN38. The APTEDB-SN38 formed self-assembled structures with a diameter of 58 ± 3 nm in an aqueous solution and displayed excellent drug loading, solubility, and stability properties...
November 2, 2016: Nanotechnology
https://www.readbyqxmd.com/read/27804151/siblings-of-children-with-life-limiting-conditions-psychological-adjustment-and-sibling-relationships
#20
J M Fullerton, V Totsika, R Hain, R P Hastings
BACKGROUND: This study explored psychological adjustment and sibling relationships of siblings of children with life-limiting conditions (LLCs), expanding on previous research by defining LLCs using a systematic classification of these conditions. METHODS: Thirty-nine siblings participated, aged 3-16 years. Parents completed measures of siblings' emotional and behavioural difficulties, quality of life, sibling relationships and impact on families and siblings...
November 1, 2016: Child: Care, Health and Development
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