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https://www.readbyqxmd.com/read/28102890/handgrip-strength-in-old-and-very-old-adults-mood-cognition-function-and-mortality
#1
Jochanan Stessman, Yakir Rottenberg, Matan Fischer, Aliza Hammerman-Rozenberg, Jeremy M Jacobs
OBJECTIVES: To determine the trajectory of handgrip strength (HGS) from age 70 to 90 and its association with mood, cognition, functional status, and mortality. DESIGN: Prospective follow-up of an age-homogenous representative community-dwelling cohort (born 1920-21) in the Jerusalem Longitudinal Cohort Study (1990-2015). SETTING: Home-based assessment. PARTICIPANTS: Subjects aged 70 (n = 327), 78 (n = 384), 85 (n = 1187), and 90 (n = 406), examined in 1990, 1998, 2005, and 2010, respectively...
January 19, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28102411/defect-driven-shapes-in-nematic-droplets-analogies-with-cell-division
#2
Marco Leoni, Oksana V Manyuhina, Mark J Bowick, M Cristina Marchetti
Building on the striking similarity between the structure of the spindle during mitosis in living cells and nematic textures in confined liquid crystals, we use a continuum model of two-dimensional nematic liquid crystal droplets to examine the physical aspects of cell division. The model investigates the interplay between bulk elasticity of the microtubule assembly, described as a nematic liquid crystal, and surface elasticity of the cell cortex, modeled as a bounding flexible membrane, in controlling cell shape and division...
January 19, 2017: Soft Matter
https://www.readbyqxmd.com/read/28102333/conserving-herbivorous-and-predatory-insects-in-urban-green-spaces
#3
Luis Mata, Caragh G Threlfall, Nicholas S G Williams, Amy K Hahs, Mallik Malipatil, Nigel E Stork, Stephen J Livesley
Insects are key components of urban ecological networks and are greatly impacted by anthropogenic activities. Yet, few studies have examined how insect functional groups respond to changes to urban vegetation associated with different management actions. We investigated the response of herbivorous and predatory heteropteran bugs to differences in vegetation structure and diversity in golf courses, gardens and parks. We assessed how the species richness of these groups varied amongst green space types, and the effect of vegetation volume and plant diversity on trophic- and species-specific occupancy...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102310/coordinated-cell-motility-is-regulated-by-a-combination-of-lkb1-farnesylation-and-kinase-activity
#4
S Wilkinson, Y Hou, J T Zoine, J Saltz, C Zhang, Z Chen, L A D Cooper, A I Marcus
Cell motility requires the precise coordination of cell polarization, lamellipodia formation, adhesion, and force generation. LKB1 is a multi-functional serine/threonine kinase that associates with actin at the cellular leading edge of motile cells and suppresses FAK. We sought to understand how LKB1 coordinates these multiple events by systematically dissecting LKB1 protein domain function in combination with live cell imaging and computational approaches. We show that LKB1-actin colocalization is dependent upon LKB1 farnesylation leading to RhoA-ROCK-mediated stress fiber formation, but membrane dynamics is reliant on LKB1 kinase activity...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102165/occupational-activity-in-patients-10-years-after-hip-replacement-surgery
#5
Teresa Pop, Ewelina Czenczek-Lewandowska, Bogumił Lewandowski, Justyna Leszczak, Justyna Podgórska-Bednarz, Joanna Baran
BACKGROUND: Advanced hip osteoarthritis requires total joint replacement surgery to improve daily activity, including occupational activity. The purpose of this study was to evaluate employment status among patients 10 years after hip replacement surgery. MATERIAL AND METHODS: A total of 63 patients who underwent total hip replacement surgery at the Department of Orthopedics and Traumatology between 2003 and 2005 were enrolled in the study. At the time of the study (2014), all patients from the study group were of working age...
August 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28102163/does-mobility-of-the-elderly-with-hip-fractures-improve-at-one-year-following-surgery-a-5-year-prospective-survey
#6
Babak Pourabbas, Mohammad Jafar Emami, Amir Reza Vosoughi, Hamid Namazi
BACKGROUND: Hip fracture and its consequences are one of the major causes of morbidity and disability in the elderly. The purpose of this study was to collect epidemiologic data and assess the daily activities and walking ability of patients 3 months and 1 year following surgery because of a hip fracture. MATERIAL AND METHODS: We prospectively obtained data of all consecutive patients more than 50 years of age with any type of hip fracture from 2008 to 2013. After excluding pathologic fractures, hip fracture dislocations, non-surgically treated cases, and dead patients, functional status of the subjects at 3 months and 1 year after surgery was evaluated using a 10-degree scale of pain, modified Barthel index of daily activity, and independent walking ability...
August 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28101764/diazepam-in-the-treatment-of-moderate-to-severe-alcohol-withdrawal
#7
Steven J Weintraub
Benzodiazepines ameliorate or prevent the symptoms and complications of moderate to severe alcohol withdrawal, which can include autonomic hyperactivity, agitation, combativeness, hallucinations, seizures, delirium, and death. The benzodiazepines most commonly used for this purpose are lorazepam, chlordiazepoxide, oxazepam, and diazepam. It is widely asserted that no member of this group is superior to the others for treatment of alcohol withdrawal. However, of these, diazepam has the shortest time to peak effect, which facilitates both rapid control of symptoms and accurate titration to avoid over-sedation...
January 18, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28101555/predictors-for-living-at-home-after-geriatric-inpatient-rehabilitation-a-prospective-cohort-study
#8
Jan Kool, Peter Oesch, Stefan Bachmann
OBJECTIVE: To evaluate patient characteristics predicting living at home after geriatric rehabilitation. DESIGN: Prospective cohort study. PATIENTS: A total of 210 patients aged 65 years or older receiving inpatient rehabilitation. METHODS: Candidate predictors evaluated during rehabilitation were: age, vulnerability (Vulnerable Elders Survey), multimorbidity (Cumulative Illness Rating Scale), cognition (Mini-Mental State Examination), depression (Hospital Anxiety and Depression Scale), living alone, previous independence in activities of daily living, fall risk, and mobility at discharge (Timed Up and Go test)...
January 18, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28101166/hsp70-inducer-17-allylamino-demethoxygeldanamycin-provides-neuroprotection-via-anti-inflammatory-effects-in-a-rat-model-of-traumatic-brain-injury
#9
Youquan Gu, Jun Chen, Tianhong Wang, Chaoning Zhou, Zhaodong Liu, Lanhua Ma
Traumatic brain injury (TBI) is the predominant cause of mortality in young adults and children living in China. TBI induces inflammatory responses; in addition, tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and IL-6 are important pro-inflammatory cytokines. Considering the observation that Hsp-70 overexpression can exert neuroprotection, identifying a drug that is able to induce the upregulation of Hsp70 has the potential to be a promising therapy for the treatment of neurological diseases. Thus, the present study assessed the clinical effectiveness of an anticancer drug and Hsp70 activator, 17-allylamino-demethoxygeldanamycin (17-AAG), to evaluate its potential as a treatment for patients with TBI...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28101127/mental-health-and-trauma-in-asylum-seekers-landing-in-sicily-in-2015-a-descriptive-study-of-neglected-invisible-wounds
#10
Anna Crepet, Francesco Rita, Anthony Reid, Wilma Van den Boogaard, Pina Deiana, Gaia Quaranta, Aurelia Barbieri, Francesco Bongiorno, Stefano Di Carlo
BACKGROUND: In 2015, Italy was the second most common point of entry for asylum seekers into Europe after Greece. The vast majority embarked from war-torn Libya; 80,000 people claimed asylum that year. Their medical conditions were assessed on arrival but their mental health needs were not addressed in any way, despite the likelihood of serious trauma before and during migration. Médecins sans Frontières (MSF), in agreement with the Italian Ministry of Health, provided mental health (MH) assessment and care for recently-landed asylum seekers in Sicily...
2017: Conflict and Health
https://www.readbyqxmd.com/read/28100803/a-new-cue-for-torpor-induction-charcoal-ash-and-smoke
#11
Clare Stawski, Julia Nowack, Gerhard Körtner, Fritz Geiser
Recent work has shown that the use of torpor for energy conservation increases after forest fires in heterothermic mammals, probably in response to the reduction of food. However, the specific environmental cues for this increased torpor expression remain unknown. It is possible that smoke and the novel substrate of charcoal and ash act as signals for an impending period of starvation requiring torpor. We therefore tested the hypothesis that the combined cues of smoke, a charcoal/ash substrate and food shortage will enhance torpor expression in a small forest-dwelling marsupial, the yellow-footed antechinus (Antechinus flavipes), because like other animals that live in fire-prone habitats they must effectively respond to fires to ensure survival...
January 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28100485/quantification-of-growth-factor-signaling-and-pathway-crosstalk-by-live-cell-imaging
#12
Sean M Gross, Peter Rotwein
Peptide growth factors stimulate cellular responses through activation of their trans-membrane receptors. Multiple intracellular signaling cascades are engaged following growth factor - receptor binding, leading to short- and long-term biological effects. Each receptor-activated signaling pathway does not act in isolation, but rather interacts at different levels with other pathways to shape signaling networks that are distinctive for each growth factor. To gain insights into the specifics of growth factor-regulated interactions among different signaling cascades, we developed a HeLa cell line stably expressing fluorescent live-cell imaging reporters that are readouts for two major growth factor-stimulated pathways, Ras - Raf - Mek - Erk and PI3-kinase - Akt...
January 18, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28100386/-effect-of-extracellular-signal-regulated-kinas-1-2-expression-and-hpv16-infection-and-their-interaction-in-progression-of-cervical-cancerization
#13
S L Fan, L Ding, Z Y Ren, X Chen, X S Sun, C C Li, C L Liu, W L Jia, Q L Li, J T Wang
Objective: To investigate the effect of ERK1/2 protein expression and HPV16 infection, as well as their interaction in the cervical carcinogenesis. Methods: A total of 176 patients, including 34 cases with normal cervix (NC), 26 cases with cervical intraepithelial neoplasm Ⅰ (CIN Ⅰ), 57 cases with cervical intraepithelial neoplasm Ⅱ/Ⅲ (CIN Ⅱ/Ⅲ) and 59 cases with cervical squamous cell carcinoma (SCC), were enrolled from Shanxi Tumor Hospital, Shanxi Maternal and Child Health Center, Jincheng Coal General Hospital from September 2013 to March 2014...
January 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28100105/inventing-a-co-axial-atomic-resolution-patch-clamp-to-study-a-single-resonating-protein-complex-and-ultra-low-power-communication-deep-inside-a-living-neuron-cell
#14
Subrata Ghosh, Satyajit Sahu, Lokesh Agrawal, Takashi Shiga, Anirban Bandyopadhyay
To read the signals of single molecules in vitro on a surface, or inside a living cell or organ, we introduce a coaxial atom tip (coat) and a coaxial atomic patch clamp (COAPAP). The metal-insulator-metal cavity of these probes extends to the atomic scale (0.1[Formula: see text]nm), it eliminates the cellular or environmental noise with a S/N ratio 10(5). Five ac signals are simultaneously applied during a measurement by COAT and COAPAP to shield a true signal under environmental noise in five unique ways. The electromagnetic drive in the triaxial atomic tips is specifically designed to sense anharmonic vibrational and transmission signals for any systems between 0...
January 18, 2017: Journal of Integrative Neuroscience
https://www.readbyqxmd.com/read/28100016/validation-of-an-enzyme-immunoassay-and-comparison-of-fecal-cortisol-metabolite-levels-in-black-and-gold-howler-monkeys-alouatta-caraya-inhabiting-fragmented-and-continuous-areas-of-the-humid-chaco-region-argentina
#15
Verónica Inés Cantarelli, Maria Amparo Perez-Rueda, Martin M Kowalewski, Gabriela F Mastromonaco, Marina Flavia Ponzio
In the last years, the study of how environmental stimuli influence the physiology and specifically the endocrinology of an organism became increasingly important, relying mainly on the quantification of glucocorticoids to monitor animal welfare. Most studies investigating cortisol levels in primates were focused on the impact of social stressors; however, a major concern for the conservation of howler monkeys is the increased habitat fragmentation led by the advancement of the agricultural frontier. We compared fecal cortisol metabolite levels (FGCM) in howler monkeys (Alouatta caraya) living in fragmented and continuous forests of the Argentine humid Chaco region, throughout the warm season (spring-summer)...
January 18, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28099852/yeast-short-lived-actin-associated-protein-forms-a-metastable-prion-in-response-to-thermal-stress
#16
Tatiana A Chernova, Denis A Kiktev, Andrey V Romanyuk, John R Shanks, Oskar Laur, Moiez Ali, Abheek Ghosh, Dami Kim, Zhen Yang, Maggie Mang, Yury O Chernoff, Keith D Wilkinson
Self-perpetuating ordered protein aggregates (amyloids and prions) are associated with a variety of neurodegenerative disorders. Although environmental agents have been linked to certain amyloid diseases, the molecular basis of their action remains unclear. We have employed endogenous yeast prions as a model system to study environmental control of amyloid formation. A short-lived actin-associated yeast protein Lsb2 can trigger prion formation by other proteins in a mode regulated by the cytoskeleton and ubiquitin-dependent processes...
January 17, 2017: Cell Reports
https://www.readbyqxmd.com/read/28099495/intestinal-bacteria-composition-and-translocation-of-bacteria-in-inflammatory-bowel-disease
#17
Spyros Vrakas, Konstantinos C Mountzouris, George Michalopoulos, George Karamanolis, George Papatheodoridis, Charalampos Tzathas, Maria Gazouli
BACKGROUND: Live commensal intestinal bacteria are present in the peripheral blood where they can induce inflammation. OBJECTIVE: To evaluate the intestinal bacteria composition and translocation of bacteria in IBD. METHODS: Both blood and tissue biopsy samples were collected from adult patients with active/inactive Crohn's disease (CD), active/inactive ulcerative colitis (UC) and healthy individuals. Most of the patients were newly diagnosed and none of them received antibiotics...
2017: PloS One
https://www.readbyqxmd.com/read/28099471/molybdate-in-rhizobial-seed-coat-formulations-improves-the-production-and-nodulation-of-alfalfa
#18
Jiqiong Zhou, Bo Deng, Yingjun Zhang, Adam B Cobb, Zhao Zhang
Rhizobia-legume symbiosis is the most well researched biological nitrogen fixation system. Coating legume seeds with rhizobia is now a recognized practical measure for improving the production of legume corp. However, the efficacy of some commercial rhizobia inoculants cannot be guaranteed in China due to the low rate of live rhizobia in these products. A greenhouse experiment was conducted to assess the effects of different rhizobial inoculant formulations on alfalfa productivity and nitrogen fixation. Two rhizobia strains, (ACCC17631 and ACCC17676), that are effective partners with alfalfa variety Zhongmu No...
2017: PloS One
https://www.readbyqxmd.com/read/28099191/long-acting-combination-anti-hiv-drug-suspension-enhances-and-sustains-higher-drug-levels-in-lymph-node-cells-than-in-blood-cells-and-plasma
#19
John C Kraft, Lisa A McConnachie, Josefin Koehn, Loren Kinman, Carol Collins, Danny D Shen, Ann C Collier, Rodney J Y Ho
OBJECTIVE: To determine if a combination of anti-HIV drugs-tenofovir (TFV), lopinavir (LPV), and ritonavir (RTV)-in a lipid-stabilized nanosuspension (called TLC-ART101) could enhance and sustain intracellular drug levels and exposures in lymph node and blood cells above those in plasma. DESIGN: Four macaques were given a single dose of TLC-ART101 subcutaneously. Drug concentrations in plasma and mononuclear cells of the blood (PBMCs) and lymph nodes (LNMCs) were analyzed using a validated combination LC-MS/MS assay...
January 17, 2017: AIDS
https://www.readbyqxmd.com/read/28099127/prevalence-risk-factors-and-consequences-of-overweight-and-obesity-among-schoolchildren-a-cross-sectional-study-in-kashmir-india
#20
Mohd Ashraf Ganie, Gulzar Ahmad Bhat, Ishfaq Ahmad Wani, Aafia Rashid, Showkat Ali Zargar, Bashir Ahmad Charoo, Zaffar Amin Shah, Syed Mudassar
BACKGROUND: Obesity among children and adolescents is a growing public health problem. The objective of this study was to evaluate the prevalence, risk factors and metabolic consequences of obesity among schoolchildren from Kashmir, India. METHODS: The study subjects (n=2024) included 870 boys and 1154 girls, aged between 6 and 18 years. Data were collected by interviewer-administered questionnaires. Information was obtained about different lifestyles, anthropometric parameters and dietary habits...
January 18, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
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