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https://www.readbyqxmd.com/read/28329787/circulating-estrogen-levels-and-self-reported-health-and-mobility-limitation-in-community-dwelling-men-of-the-framingham-heart-study
#1
Guneet Kaur Jasuja, Thomas G Travison, Joanne M Murabito, Maithili N Davda, Adam J Rose, Shehzad Basaria, Andrea Coviello, Ramachandran S Vasan, Ralph D'Agostino, Shalender Bhasin
Background: Self-rated health is a commonly used global indicator of health status. Few studies have examined the association of self-rated health and mobility with estrone and estradiol in men. Accordingly, we determined the cross-sectional, incident, and mediating relations between circulating estrone and estradiol levels with self-rated health, mobility limitation, and physical performance in community-dwelling men. Methods: The cross-sectional sample included 1,148 men, who attended Framingham Offspring Study Examinations 7 and 8...
October 24, 2016: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28329021/comparison-of-anti-inflammatory-activities-of-an-anthocyanin-rich-fraction-from-portuguese-blueberries-vaccinium-corymbosum-l-and-5-aminosalicylic-acid-in-a-tnbs-induced-colitis-rat-model
#2
Sónia R Pereira, Rita Pereira, Isabel Figueiredo, Victor Freitas, Teresa C P Dinis, Leonor M Almeida
Despite the actual therapeutic approaches for inflammatory bowel disease (IBD), efficient and secure alternative options remain a research focus. In this context, anthocyanins seem promising natural anti-inflammatory agents, but their action mechanisms and efficacy as compared with established drugs still require more clarification. The main aim of this study was to compare the anti-inflammatory action of a chemically characterized anthocyanin-rich fraction (ARF), obtained from Portuguese blueberries (Vaccinium corymbosum L...
2017: PloS One
https://www.readbyqxmd.com/read/28328674/the-value-of-the-injury-severity-score-in-pediatric-trauma-time-for-a-new-definition-of-severe-injury
#3
Joshua B Brown, Mark L Gestring, Christine M Leeper, Jason L Sperry, Andrew B Peitzman, Timothy R Billiar, Barbara A Gaines
BACKGROUND: The Injury Severity Score (ISS) is the most commonly used injury scoring system in trauma research and benchmarking. An ISS>15 conventionally defines severe injury; however, no studies evaluate whether ISS performs similarly between adults and children. Our objective was to evaluate ISS and AIS to predict mortality and define optimal thresholds of severe injury in pediatric trauma. METHODS: Patients from the Pennsylvania trauma registry 2000-2013 were included...
March 20, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28328510/investigation-and-modeling-of-capacitive-human-body-communication
#4
Xiao-Qi Zhu, Yong-Xin Guo, Wen Wu
This paper presents a systematic investigation of the capacitive human body communication (HBC). The measurement of HBC channels is performed using a novel battery-powered system to eliminate the effects of baluns, cables and instruments. To verify the measured results, a numerical model incorporating the entire HBC system is established. Besides, it is demonstrated that both the impedance and path gain bandwidths of HBC channels is affected by the electrode configuration. Based on the analysis of the simulated electric field distribution, an equivalent circuit model is proposed and the circuit parameters are extracted using the finite element method...
March 16, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28328287/photobiomodulation-with-non-thermal-lasers-mechanisms-of-action-and-therapeutic-uses-in-dermatology-and-aesthetic-medicine
#5
Mark Nestor, Anneke Andriessen, Brian Berman, Bruce E Katz, Dore Gilbert, David J Goldberg, Michael H Gold, Robert S Kirsner, Paul Z Lorenc
BACKGROUND: Non-thermal laser therapy in dermatology, is a growing field in medical technology by which therapeutic effects are achieved by exposing tissues to specific wavelengths of light. OBJECTIVES: The purpose of this review was to gain a better understanding of the science behind non-thermal laser and the evidence supporting its use in dermatology. METHODS: A group of dermatologists and surgeons recently convened to review the evidence supporting the use of non-thermal laser for body sculpting, improving the appearance of cellulite, and treating onychomycosis...
February 17, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28328100/smart-mechanosensing-machineries-enable-migration-of-vascular-smooth-muscle-cells-in-atherosclerosis-relevant-3d-matrices
#6
REVIEW
Qingjia Chi, Jieling Shan, Xiaorong Ding, Tieying Yin, Yazhou Wang, Dongyu Jia, Guixue Wang
At the early stage of atherosclerosis, neointima is formed due to the migration of vascular smooth muscle cells (VSMCs) from the media to the intima. VSMCs are surrounded by highly adhesive 3D matrices. They take specific strategies to cross various 3D matrices in the media, including heterogeneous collagen and mechanically-strong basement membrane. Migration of VSMCs is potentially caused by biomechanical mechanism. Most in vitro studies focus on cell migration on 2D substrates in response to biochemical factors...
March 22, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28328083/oral-iron-supplementation-potential-implications-for-the-gut-microbiome-and-metabolome-in-patients-with-ckd
#7
Guus A M Kortman, Dorien Reijnders, Dorine W Swinkels
Patients with chronic kidney disease (CKD) and loss of kidney function are at increased risk for morbidity and mortality. The risks of CKD are attributed to "uremia," an increased concentration of uremic retention solutes (toxins) in the plasma. Recently, a colo-renal axis became clearly apparent and uremia has been associated with an altered gut microbiome composition and metabolism. There is a high prevalence of anemia in patients with CKD, for which patients are often treated with oral or intravenous iron...
March 22, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28328067/diminishing-returns-limit-energetic-costs-of-climate-change
#8
Ofir Levy, Jason D Borchert, Travis W Rusch, Lauren B Buckley, Michael J Angilletta
Changes in the time available for organisms to maintain physiologically preferred temperatures (thermal opportunity) is a primary mechanism by which climate change impacts the fitness and population dynamics of organisms. Yet, it is unclear whether losses or gains in thermal opportunity result in proportional changes in rates of energy procurement and use. We experimentally quantified lizard food consumption and energy assimilation at different durations of thermal opportunity. We incorporated these data in an individual-based model of foraging and digestion in lizards to explore the implications of nonlinear responses to shifts in thermal opportunity across a wide geographic range...
March 22, 2017: Ecology
https://www.readbyqxmd.com/read/28327943/whole-genome-sequencing-of-chinese-clearhead-icefish-protosalanx-hyalocranius
#9
Kai Liu, Dongpo Xu, Jia Li, Chao Bian, Jinrong Duan, Yanfeng Zhou, Minying Zhang, Xinxin You, Yang You, Jieming Chen, Hui Yu, Gangchun Xu, Di-An Fang, Jun Qiang, Shulun Jiang, Jie He, Junmin Xu, Qiong Shi, Zhiyong Zhang, Pao Xu
Background: Chinese clearhead icefish, Protosalanx hyalocranius , is a representative icefish species with economic importance and special appearance. Due to its great economic values in China, the fish was introduced into Lake Dianchi and several other lakes from the Lake Taihu half a century ago. Similar to the Sinocyclocheilus cavefish, the clearhead icefish has certain cavefish-like traits, such as transparent body and nearly scaleless skin. Here, we provide the whole genome sequence of this surface-dwelling fish and generated a draft genome assembly, aiming at exploring molecular mechanisms for the biological interests...
February 24, 2017: GigaScience
https://www.readbyqxmd.com/read/28327681/utilization-of-health-research-recommendation-in-policy-and-planning-in-nepal
#10
M Dhimal, A R Pandey, K K Aryal, C B Budhathoki, D L Vaidya, K K Karki, S Onta
BACKGROUND: Over the past decade in Nepal, a large number of studies have been carried in a variety of health areas; however whether evidence derived from these studies has been used to inform health policy has not been explored. This study aims to assess the utilization of recommendations from health research in health policy and plans, and to identify the factors that influence utilization of research findings by policy makers' in Nepal. METHODS: Qualitative study incorporating literature review and semi-structured interviews was used...
September 2016: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/28327660/quantitative-volumetric-raman-imaging-of-three-dimensional-cell-cultures
#11
Charalambos Kallepitis, Mads S Bergholt, Manuel M Mazo, Vincent Leonardo, Stacey C Skaalure, Stephanie A Maynard, Molly M Stevens
The ability to simultaneously image multiple biomolecules in biologically relevant three-dimensional (3D) cell culture environments would contribute greatly to the understanding of complex cellular mechanisms and cell-material interactions. Here, we present a computational framework for label-free quantitative volumetric Raman imaging (qVRI). We apply qVRI to a selection of biological systems: human pluripotent stem cells with their cardiac derivatives, monocytes and monocyte-derived macrophages in conventional cell culture systems and mesenchymal stem cells inside biomimetic hydrogels that supplied a 3D cell culture environment...
March 22, 2017: Nature Communications
https://www.readbyqxmd.com/read/28327581/the-early-life-environment-of-a-pig-shapes-the-phenotypes-of-its-social-partners-in-adulthood
#12
L Canario, N Lundeheim, P Bijma
Social interactions among individuals are abundant, both in natural and domestic populations, and may affect phenotypes of individuals. Recent research has demonstrated that the social effect of an individual on the phenotype of its social partners may have a genetic component, known as an indirect genetic effect (IGE). Little is known, however, of nongenetic factors underlying such social effects. Early-life environments often have large effects on phenotypes of the individuals themselves later in life. Offspring development in many mammalian species, for example, depends on interactions with the mother and siblings...
March 22, 2017: Heredity
https://www.readbyqxmd.com/read/28327528/anti-obesity-effect-of-bombus-ignitus-queen-glycosaminoglycans-in-rats-on-a-high-fat-diet
#13
Mi Young Ahn, Ban Ji Kim, Ha Jeong Kim, Hyung Joo Yoon, Sang Duck Jee, Jae Sam Hwang, Kun-Koo Park
The mechanism of functional insect glycosaminoglycan (GAG) on obesity caused a high fat diet has not yet been elucidated. Therefore, insect glycosaminoglycans derived from Isaria sinclairii, Bombus ignitus (a type of bumblebee) queen, and Gryllus bimaculatus were purified and investigated as a potential functional food. 14-week old male Wistar rats were fed a high-fat diet (HFD) for 6 weeks. There were five groups that received daily intraperitoneal administration of phosphate buffered saline (PBS, control), GbG (GAG from Gryllus bimaculatus) 10 mg/kg, ISG (GAG from Isaria sinclairii) 10 mg/kg, IQG (GAG from Bombus ignites) 10 mg/kg, or Pravastatin (2 mg/kg)...
March 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28327410/mitochondria-control-acute-and-chronic-responses-to-hypoxia
#14
G S McElroy, N S Chandel
There are numerous mechanisms by which mammals respond to hypoxia. These include acute changes in pulmonary arterial tone due to smooth muscle cell contraction, acute increases in respiration triggered by the carotid body chemosensory cells, and chronic changes such as induction of red blood cell proliferation and angiogenesis by hypoxia inducible factor targets erythropoietin and vascular endothelial growth factor, respectively. Mitochondria account for the majority of oxygen consumption in the cell and have recently been appreciated to serve as signaling organelles required for the initiation or propagation of numerous homeostatic mechanisms...
March 19, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28327272/effects-of-electrospun-scaffolds-of-di-o-butyrylchitin-and-poly-%C3%AE%C2%B5-caprolactone-on-wound-healing
#15
Jacek Drobnik, Izabella Krucinska, Agnieszka Komisarczyk, Stanislaw Sporny, Alicja Szczepanowska, Joanna Ciosek
BACKGROUND: We sought to determine the usefulness of electrospun dibutyrylchitin (DBC) or poly (ε-Caprolactone [PCL]), in wound treatment. We investigated the mechanisms of action of these polymers on wound healing. METHODS: We synthesized DBC, a newly identified ester derivative of chitin, using a patented method comprising the substitution of butyryl groups at positions C-3 and C-6 in chitin molecules. We confirmed the double substitution by the butyric groups using infrared spectrometry...
April 1, 2017: Canadian Journal of Surgery. Journal Canadien de Chirurgie
https://www.readbyqxmd.com/read/28327260/vitamin-d-and-dental-caries-in-primary-dentition
#16
Ana Lucia Seminario, Elizabet Velan
Traditionally classified as a vitamin, vitamin D represents a group of fat-soluble secosteroids with D2 (ergocalciferol) and D3 (cholecalciferol) being the most relevant of the group. The importance of this prohormone exceeds its known ability to maintain intra- and extracellular calcium and phosphate concentrations, thereby preserving essential metabolic functions such as the promotion of mineralization and maintenance and remodeling of the bone. Current observational research recognizes the potential antiproliferative, prodifferentiative, and immunomodulatory effects of vitamin D and its metabolites in the human body...
September 15, 2016: Journal of Dentistry for Children
https://www.readbyqxmd.com/read/28327129/short-term-overfeeding-of-zebrafish-with-normal-or-high-fat-diet-as-a-model-for-the-development-of-metabolically-healthy-versus-unhealthy-obesity
#17
Kathrin Landgraf, Susanne Schuster, Andrej Meusel, Antje Garten, Thomas Riemer, Dorit Schleinitz, Wieland Kiess, Antje Körner
BACKGROUND: Obese individuals differ in their risk of developing metabolic and cardiovascular complications depending on fat distribution (subcutaneous versus visceral) and adipose tissue (AT) phenotype (hyperplasic versus hypertrophic). However, the exact mechanisms which determine whether an obese individual is metabolically healthy or unhealthy are not clear, and analyses of the underlying pathomechanisms are limited by the lack of suitable in vivo models in which metabolically healthy versus metabolically unhealthy AT accumulation can be specifically induced...
March 21, 2017: BMC Physiology
https://www.readbyqxmd.com/read/28326933/attenuation-of-hyperalgesia-responses-via-the-modulation-of-5-hydroxytryptamine-signalings-in-the-rostral-ventromedial-medulla-and-spinal-cord-in-a-6-hydroxydopamine-induced-rat-model-of-parkinson-s-disease
#18
Chen-Tao Wang, Cheng-Jie Mao, Xiao-Qi Zhang, Cai-Yi Zhang, Dong-Jun Lv, Ya-Ping Yang, Kai-Lin Xia, Jun-Yi Liu, Fen Wang, Li-Fang Hu, Guang-Yin Xu, Chun-Feng Liu
Background Although pain is one of the most distressing non-motor symptoms among patients with Parkinson's disease, the underlying mechanisms of pain in Parkinson's disease remain elusive. The aim of the present study was to investigate the role of serotonin (5-hydroxytryptamine) in the rostral ventromedial medulla (RVM) and spinal cord in pain sensory abnormalities in a 6-hydroxydopamine-treated rat model of Parkinson's disease. Methods The rotarod test was used to evaluate motor function. The radiant heat test and von Frey test were conducted to evaluate thermal and mechanical pain thresholds, respectively...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28326931/overexpression-of-suppressor-of-cytokine-signaling-3-in-dorsal-root-ganglion-attenuates-cancer-induced-pain-in-rats
#19
Jinrong Wei, Meng Li, Dieyu Wang, Hongyan Zhu, Xiangpeng Kong, Shusheng Wang, You-Lang Zhou, Zhong Ju, Guang-Yin Xu, Guo-Qin Jiang
Background Cancer-induced pain (CIP) is one of the most severe types of chronic pain with which clinical treatment remains challenging and the involved mechanisms are largely unknown. Suppressor of cytokine signaling 3 (SOCS3) is an important intracellular protein and provides a classical negative feedback loop, thus involving in a wide variety of processes including inflammation and nociception. However, the role of SOCS3 pathway in CIP is poorly understood. The present study was designed to investigate the role of SOCS3 in dorsal root ganglion (DRG) in the development of CIP...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28326925/interaction-of-acupuncture-treatment-and-manipulation-laterality-modulated-by-the-default-mode-network
#20
Xuan Niu, Ming Zhang, Zhenyu Liu, Lijun Bai, Chuanzhu Sun, Shan Wang, Xiaocui Wang, Zhen Chen, Hongyan Chen, Jie Tian
Appropriate selection of ipsilateral or contralateral electroacupuncture (corresponding to the pain site) plays an important role in reaching its better curative effect; however, the involving brain mechanism still remains unclear. Compared with the heat pain model generally established in previous study, capsaicin pain model induces reversible cutaneous allodynia and is proved to be better simulating aspects of clinical nociceptive and neuropathic pain. In the current study, 24 subjects were randomly divided into two groups with a 2 × 2 factorial design: laterality (ipsi- or contralateral side, inter-subject) × treatment with counter-balanced at an interval of one week (verum and placebo electroacupuncture, within-subject)...
January 2017: Molecular Pain
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