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Qian Tang, Gang Zheng, Zhenhua Feng, Yu Chen, Yiting Lou, Chenggui Wang, Xiaolei Zhang, Yu Zhang, Huazi Xu, Ping Shang, Haixiao Liu
Oxidative stress-related apoptosis and autophagy play crucial roles in the development of osteoarthritis (OA), a progressive cartilage degenerative disease with multifactorial etiologies. Here, we determined autophagic flux changes and apoptosis in human OA and tert-Butyl hydroperoxide (TBHP)-treated chondrocytes. In addition, we explored the potential protective effects of trehalose, a novel Mammalian Target of Rapamycin (mTOR)-independent autophagic inducer, in TBHP-treated mouse chondrocytes and a destabilized medial meniscus (DMM) mouse OA model...
October 5, 2017: Cell Death & Disease
Haider Al-Baghdadi, Çiğdem Koca Al-Baghdadi, Abdikarim Abdi, Onur Gültekin, Arijana Meštrović, Rumeysa Demirdamar, Barçın Özcem, Bilgen Başgut
Background Clinical pharmacists are the primary source of scientifically valid information and advice on the safe, rational, and cost-effective use of medications. However, ward-based clinical pharmacy services are not well optimized in Northern Cyprus. Objective Ward based clinical pharmacy services were introduced and evaluated in cardiovascular clinics. Setting Cardiology and cardiovascular surgery departments in a tertiary university hospital. Methods A prospective interventional study introduced and documented clinical pharmacy services for 120 days...
October 3, 2017: International Journal of Clinical Pharmacy
Melike Çaglayan, Rajendra Prasad, Rachel Krasich, Matthew J Longley, Kei Kadoda, Masataka Tsuda, Hiroyuki Sasanuma, Shunichi Takeda, Keizo Tano, William C Copeland, Samuel H Wilson
Mitochondrial aprataxin (APTX) protects the mitochondrial genome from the consequence of ligase failure by removing the abortive ligation product, i.e. the 5'-adenylate (5'-AMP) group, during DNA replication and repair. In the absence of APTX activity, blocked base excision repair (BER) intermediates containing the 5'-AMP or 5'-adenylated-deoxyribose phosphate (5'-AMP-dRP) lesions may accumulate. In the current study, we examined DNA polymerase (pol) γ and pol β as possible complementing enzymes in the case of APTX deficiency...
September 29, 2017: Nucleic Acids Research
S Verdoorn, H F Kwint, P Hoogland, J Gussekloo, M L Bouvy
WHAT IS KNOWN AND OBJECTIVE: To facilitate the identification of drug-related problems (DRPs) during medication review, several tools have been developed. Explicit criteria, like Beers criteria or STOPP (Screening Tool of Older Peoples' Prescriptions) and START (Screening Tool to Alert doctors to Right Treatment) criteria, can easily be integrated into a clinical decision support system (CDSS). The aim of this study was to investigate the effect of adding a CDSS to medication review software on identifying and solving DRPs in daily pharmacy practice...
October 2, 2017: Journal of Clinical Pharmacy and Therapeutics
Lene Juel Kjeldsen, Trine Rune Høgh Nielsen, Charlotte Olesen
The aim of the review was to investigate whether an assessment of clinical significance can be related to specific drug-related problems (DRPs) and hence may assist in prioritizing individual categories of DRP categorization systems. The literature search using Google Scholar was performed for the period 1990 to 2013 and comprised primary research studies of clinical pharmacy interventions including DRP and clinical significance assessments. Two reviewers assessed the titles, abstracts, and full-text papers individually, and inclusion was determined by consensus...
June 9, 2017: Pharmacy (Basel, Switzerland)
Conxita Mestres, Anna Agustí, Marta Hernandez, Laura Puerta, Blanca Llagostera
As a pharmacy service giving pharmaceutical care at different levels of health care for elderly people, we needed a standardization procedure for recording and evaluating pharmacists' interventions. Our objective was to homogenize pharmacist interventions; to know physicians' acceptance of our recommendations, as well as the most prevalent drug related problems (DRP); and the impact of the pharmacists' interventions. To achieve this goal we conducted a one year prospective study at two levels of health care: 176 nursing homes (EAR) (8828 patients) and 2 long-term and subacute care hospitals (HSS) (268 beds)...
May 19, 2017: Pharmacy (Basel, Switzerland)
Tomoaki Matsuo, Rina So, Hiroyuki Sasai, Kazunori Ohkawara
OBJECTIVES: The National Institute of Occupational Safety and Health, Japan (JNIOSH) developed a new Worker's Living Activity-time Questionnaire (JNIOSH-WLAQ) which primarily evaluates workers' sedentary behavior. The purpose of this study was to investigate the test-retest reliability and criterion validity of the WLAQ. METHODS: One hundred and thirty eight workers completed the WLAQ twice in one week. During the week, they wore a thigh-worn inclinometer (activPAL) and maintained a daily log as criteria measurements...
September 26, 2017: Sangyō Eiseigaku Zasshi, Journal of Occupational Health
Samer Tohme, Marina V Kameneva, Hamza O Yazdani, Vikas Sud, Julie Goswami, Patricia Loughran, Hai Huang, Richard L Simmons, Allan Tsung
INTRODUCTION: Surgery, a crucial therapeutic modality in the treatment of solid tumors, can induce sterile inflammatory processes which can result in metastatic progression. Liver ischemia and reperfusion (I/R) injury, an inevitable consequence of hepatic resection of metastases, has been shown to foster hepatic capture of circulating cancer cells and accelerate metastatic growth. Efforts to reduce these negative consequences have not been thoroughly investigated. Drag reducing polymers (DRPs) are blood-soluble macromolecules that can, in nanomolar concentrations, increase tissue perfusion, decrease vascular resistance and decrease near-wall microvascular concentration of neutrophils and platelets thereby possibly reducing the inflammatory microenvironment...
August 29, 2017: Oncotarget
Yesenia Rodriguez, Michael J Howard, Matthew J Cuneo, Rajendra Prasad, Samuel H Wilson
Packaging of DNA into the nucleosome core particle (NCP) is considered to exert constraints to all DNA-templated processes, including base excision repair where Pol β catalyzes two key enzymatic steps: 5'-dRP lyase gap trimming and template-directed DNA synthesis. Despite its biological significance, knowledge of Pol β activities on NCPs is still limited. Here, we show that removal of the 5'-dRP block by Pol β is unaffected by NCP constraints at all sites tested and is even enhanced near the DNA ends. In contrast, strong inhibition of DNA synthesis is observed...
September 6, 2017: Nucleic Acids Research
Nataliya Miropolskaya, Ivan Petushkov, Andrey Kulbachinskiy, Alena V Makarova
Besides X-family DNA polymerases (first of all, Pol β) several other human DNA polymerases from Y- and A- families were shown to possess the dRP-lyase activity and could serve as backup polymerases in base excision repair (Pol ι, Rev1, Pol γ and Pol θ). However the exact position of the active sites and the amino acid residues involved in the dRP-lyase activity in Y- and A- family DNA polymerases are not known. Here we carried out functional analysis of fifteen amino acid residues possibly involved in the dRP-lyase activity of human Pol ι...
August 31, 2017: Scientific Reports
Åsa Morén, Magnus Sundbom, Johan Ottosson, Elisabet Granstam
PURPOSE: To study the occurrence and level of diabetic retinopathy (DRP) before and after planned bariatric surgery and to investigate potential risk factors for deterioration of DRP. METHODS: The Scandinavian Obesity Surgery Registry (SOReg) was used to identify diabetic patients who underwent gastric bypass (GBP) surgery at three centres in Sweden during 2008-2010. Information regarding DRP screening was obtained from ophthalmological patient charts. Patients who had DRP screening before and after GBP surgery were included in the study...
August 31, 2017: Acta Ophthalmologica
Tara G McAllister, Susanna A Wood, Javier Atalah, Ian Hawes
Toxic benthic cyanobacterial proliferations, particularly of the genus Phormidium, are a major concern in many countries due to their increasing extent and severity. The aim of this study was to improve the current understanding of the dominant physicochemical variables associated with high Phormidium cover and toxin concentrations. Phormidium cover and anatoxin concentrations were assessed weekly for 30weeks in eight predominately cobble-bed rivers in the South Island of New Zealand. Phormidium cover was highly variable both spatially (among and within sites) and temporally...
August 25, 2017: Science of the Total Environment
Liangliang Cai, Dongwei Wan, Fanglian Yi, Libiao Luan
In this study, purification, preliminary characterization and hepatoprotective effects of water-soluble polysaccharides from dandelion root (DRP) were investigated. Two polysaccharides, DRP1 and DRP2, were isolated from DRP. The two polysaccharides were α-type polysaccharides and didn't contain protein. DRP1, with a molecular weight of 5695 Da, was composed of glucose, galactose and arabinose, whereas DRP2, with molecular weight of 8882 Da, was composed of rhamnose, galacturonic acid, glucose, galactose and arabinose...
August 25, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Abhinav Dhingra, Rahul Jayas, Pegah Afshar, Matthew Guberman, Graham Maddaford, Johnathan Gerstein, Brooke Lieberman, Hilary Nepon, Victoria Margulets, Rimpy Dhingra, Lorrie A Kirshenbaum
The Bcl-2 protein Bnip3 is crucial for provoking oxidative injury to mitochondria following anthracycline treatment or ischemia-reperfusion injury. Herein, we investigate the effects of the polyphenolic compound ellagic acid (EA) on Bnip3 mediated mitochondrial injury and necrotic cell death in cardiac myocytes. In contrast to vehicle treated cardiomyocytes, Bnip3 was highly enriched in mitochondrial fractions of cardiac myocytes treated with the anthracycline doxorubicin or in cells subjected to hypoxia (HPX)...
August 25, 2017: Free Radical Biology & Medicine
Jonathan C Vacek, Jyotirmaya Behera, Akash K George, Pradip K Kamat, Anuradha Kalani, Neetu Tyagi
Homocysteine (Hcy) causes endothelial dysfunction by inducing oxidative stress in most neurodegenerative disorders. This dysfunction is highly correlated with mitochondrial dynamics such as fusion and fission. However, there are no strategies to prevent Hcy induced mitochondrial remodeling. Tetrahydrocurcumin (THC) is an anti-inflammatory and anti-oxidant compound. We hypothesized that THC may ameliorates Hcy induced mitochondria remodeling in mouse brain endothelial cells (bEnd3) cells. bEnd3 cells were exposed to Hcy treatment in the presence or absence of THC...
August 18, 2017: Journal of Cellular Physiology
Aarti Gupta, Muthappa Senthil-Kumar
Field-grown plants experience cycles of drought stress and recovery due to variation in soil moisture status. Physiological, biochemical and transcriptome responses instigated by recovery are expected to be different from drought stress and non-stressed state. Such responses can further aid or antagonize the plant's interaction with the pathogen. However, at molecular level, not much is known about plant-pathogen interaction during drought recovery. In the present study, we performed a microarray-based global transcriptome profiling and demonstrated the existence of unique transcriptional changes in Arabidopsis thaliana inoculated with Pseudomonas syringae pv...
August 22, 2017: Scientific Reports
Bih Yee Chia, McVin Hua Heng Cheen, Xin Yi Gwee, Melissa Mee Yin Chow, Giat Yeng Khee, Wan Chee Ong, Hui Lin Choong, Paik Shia Lim
Background Patients receiving hemodialysis are predisposed to drug related problems (DRPs). While collaborative care (CC) models with pharmacist involvement can reduce DRP occurrence, few have examined its impact on clinical and economic outcomes. Objective To determine whether a CC model with pharmacist-provided medication review can reduce unplanned admissions and healthcare utilization in patients receiving hemodialysis, compared to usual care (UC). Setting Outpatient nephrology clinic of a tertiary hospital in Singapore...
August 21, 2017: International Journal of Clinical Pharmacy
Kuo Du, Anup Ramachandran, Mitchell R McGill, Abdellah Mansouri, Tarik Asselah, Anwar Farhood, Benjamin L Woolbright, Wen-Xing Ding, Hartmut Jaeschke
Mitochondrial biogenesis (MB) is an adaptive response to maintain metabolic homeostasis after mitochondrial dysfunction. Induction of MB during APAP hepatotoxicity has not been studied. To investigate this, mice were treated with toxic doses of APAP and euthanized between 0 and 96 h. At early time points, APAP caused both mitochondrial dysfunction and reduction of mitochondrial mass, indicated by reduced activity of electron transport chain (ETC) complexes I and IV and depletion of mitochondrial DNA (mtDNA), respectively...
October 2017: Food and Chemical Toxicology
Ghaith M Al-Taani, Sayer I Al-Azzam, Karem H Alzoubi, Feras W Darwish Elhajji, Michael G Scott, Hamzah Alfahel, Mamoon A Aldeyab
OBJECTIVE: Drug-related problems (DRPs) are considered a serious, expensive, and important undesirable complication of health care. However, as current health care resources are limited, pharmacist DRP services cannot be provided to all patients. Using a modeling approach, we aimed to identify risk factors for DRPs so that patients for DRP-reduction services can be better identified. METHODS: Patients with diabetes from outpatient clinics from five key university-affiliated and public hospitals in Jordan were assessed for DRPs (drug without an indication, untreated indication, and drug efficacy problems)...
2017: Drug, Healthcare and Patient Safety
Wen-Jing Liu, Hai-Feng Jiang, Faisal Ul Rehman, Jing-Wen Zhang, Yue Chang, Li Jing, Jian-Zhong Zhang
Although it has been reported that polysaccharides found in Lycium barbarum possess neuroprotective effects, little is known of their ability to ameliorate hyperglycemia-aggravated ischemia/reperfusion brain injury. In this study, normoglycemic (NG) and hyperglycemic (HG) rats were compared after 30 minutes of middle cerebral artery occlusion (MCAO), followed by 24 or 27 hours of reperfusion, with HG rats pretreated with lyceum barbarum polysaccharides (LBP) or insulin. In each group, the neurological deficit, infarct volume, pathohistology, and expression of proteins, Opa1 and Drp1, were assessed to determine the efficacy of LBP in alleviating hyperglycemia-aggravated ischemia/reperfusion brain injury...
2017: International Journal of Biological Sciences
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