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https://www.readbyqxmd.com/read/28646314/ozone-and-desiccation-tolerance-in-chlorolichens-are-intimately-connected-a-case-study-based-on-two-species-with-different-ecology
#1
Stefano Bertuzzi, Elisa Pellegrini, Fabio Candotto Carniel, Guido Incerti, Giacomo Lorenzini, Cristina Nali, Mauro Tretiach
Tropospheric ozone (O3) causes severe damage to many vascular plants but not to lichens. It was recently suggested that this may be due to their high levels of natural defences against the oxidative bursts associated to their fluctuating water content. In this study, the combined effects of watering regime (with or without a daily spray of distilled water), air relative humidity (20 ± 5 vs. 80 ± 5% RH) and O3 (250 vs. 0 ppb, 5 h day(-1) for 2 weeks) were monitored in two chlorolichens with different ecology, Parmotrema perlatum and Xanthoria parietina...
June 23, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28637401/relationship-between-ambulatory-arterial-stiffness-index-aasi-and-night-day-blood-pressure-ratio-in-essential-hypertensives
#2
Domenico Di Raimondo, Alessandra Casuccio, Rosangela Di Liberti, Gaia Musiari, Valentina Zappulla, Alessandra D'angelo, Antonio Pinto
BACKGROUND: Ambulatory Arterial Stiffness Index (AASI) has been proposed as an indirect and simpler method to estimate the Arterial Stiffness (AS). AASI, calculated from a set of data collected during a 24-hours ambulatory blood pressure monitoring (ABPM), is defined as 1 minus the regression slope of diastolic on systolic blood pressure (BP) values. For a given increase in diastolic BP, the increase in systolic BP is smaller in a compliant compared to a stiff artery; the stiffer the arterial tree, the closer AASI is to 1...
June 21, 2017: Current Hypertension Reviews
https://www.readbyqxmd.com/read/28634176/impact-of-glycemic-variability-on-chromatin-remodeling-oxidative-stress-and-endothelial-dysfunction-in-type-2-diabetic-patients-with-target-hba1c-levels
#3
Sarah Costantino, Francesco Paneni, Rodolfo Battista, Lorenzo Castello, Giuliana Capretti, Sergio Chiandotto, Luigi Tanese, Giulio Russo, Dario Pitocco, Gaetano A Lanza, Massimo Volpe, Thomas F Lüscher, Francesco Cosentino
Intensive glycemic control (IGC) targeting HbA1c fails to show an unequivocal reduction of macrovascular complications in type 2 diabetes (T2D), however the underlining mechanisms remain elusive. Epigenetic changes are emerging as important mediators of cardiovascular damage and may play a role in this setting. This study investigates whether epigenetic regulation of the adaptor protein p66(Shc), a key driver of mitochondrial oxidative stress, contributes to persistent vascular dysfunction in T2D patients despite IGC...
June 20, 2017: Diabetes
https://www.readbyqxmd.com/read/28630634/moxibustion-alleviates-injury-in-a-rat-focal-segmental-glomerulosclerosis-model
#4
Yi Li, Yuxia Sun, Chunling Zhang, Ke Wang, Peicheng Shen, Di Huang, Wen Ma, Jin Zhang, Lin Li, Liqun He
OBJECTIVES: To evaluate the therapeutic effects of moxibustion at Shenshu (BL-23) and Geshu (BL-17) acupoints in a focal segmental glomerulosclerosis (FSGS) model in rats. METHODS: A FSGS rat model was established by single nephrectomy and repeated injection of doxorubicin. The FSGS rats were randomly divided into the model group, losartan (positive control) group, Shenshu moxibustion group, and Geshu moxibustion group. Molecular indicators of kidney function and renal pathological changes were monitored...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28630606/clinical-characteristics-target-organ-damage-and-associate-risk-factors-of-resistant-hypertension-determined-by-ambulatory-blood-pressure-monitoring-in-patients-aged-%C3%A2-80-years
#5
Zhi-Ru Liang, Ling-Gen Gao, Jian Cao, Hua Cui, Li Fan, De-Wei Gao
OBJECTIVES: To investigate clinical characteristics, target organ damage, and the associated risk factors of the patients aged ≥ 80 years with true resistant hypertension (RH). METHODS: Patients aged ≥ 80 years with hypertension (n = 1163) were included in this study. The included participants attended a structured clinical examination and an evaluation of RH was carried out. The prevalence, clinical characteristics and target organ damage of patients with RH were assessed...
May 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/28628601/the-damage-control-surgery-in-austere-environments-research-group-dcsaerg-a-dynamic-program-to-facilitate-real-time-telementoring-telediagnosis-to-address-exsanguination-in-extreme-and-austere-environments
#6
Andrew W Kirkpatrick, Jessica L McKee, Paul B McBeth, Chad G Ball, Anthony LaPorta, Timothy Broderick, Tim Leslie, David King, Heather E Wright Beatty, Jocelyn Keillor, Homer Tien
Hemorrhage is the most preventable cause of posttraumatic death. Many cases are potentially anatomically salvageable, yet remain lethal without logistics or trained personnel to deliver diagnosis or resuscitative surgery in austere environments. Revolutions in technology for remote mentoring of ultrasound and surgery may enhance capabilities to utilize the skill sets of non-physicians. Thus, our research collaborative explored remote mentoring to empower non-physicians to address junctional and torso hemorrhage control in austere environments...
July 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28625587/a-rabbit-model-of-aneurysmal-subarachnoid-hemorrhage-by-ear-central-artery-suprasellar-cistern-shunt
#7
Jing Lu, Fuxiang Chen, Bing Cai, Fan Chen, Dezhi Kang
Aneurysmal subarachnoid hemorrhage (aSAH) is a life-threatening hemorrhagic cerebrovascular disease. The concept of early brain injury (EBI), induced by sharply increased intracranial pressure (ICP) and low cerebral perfusion pressure (CPP) with cerebral global ischemia following aneurysm rupture, has been increasingly accepted. However, EBI has not been well studied partly due to lack of an ideal animal model. The purpose of this study was to establish a new aSAH model which can mimic the pathophysiological damage of EBI...
June 15, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28619153/identification-of-candidate-protein-markers-of-bovine-parainfluenza-virus-type-3-infection-using-an-in-vitro-model
#8
Darren W Gray, Michael D Welsh, Simon Doherty, Mark H Mooney
Bovine Parainfluenza Virus Type 3 (BPI3V) infections are often asymptomatic, causing respiratory tissue damage and immunosuppression, predisposing animals to severe bacterial pneumonia, the leading cause of Bovine Respiratory Disease (BRD) mortality. As with many pathogens, routine BPI3V serology does not indicate the presence of damaged respiratory tissue or active infection. In vitro proteomic marker screening using disease relevant cell models could help identify markers of infection and tissue damage that are also detectable during in vivo infections...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28616030/time-lapse-changes-of-in-vivo-injured-neuronal-substructures-in-the-central-nervous-system-after-low-energy-two-photon-nanosurgery
#9
Zhikai Zhao, Shuangxi Chen, Yunhao Luo, Jing Li, Smaranda Badea, Chaoran Ren, Wutian Wu
There is currently very little research regarding the dynamics of the subcellular degenerative events that occur in the central nervous system in response to injury. To date, multi-photon excitation has been primarily used for imaging applications; however, it has been recently used to selectively disrupt neural structures in living animals. However, understanding the complicated processes and the essential underlying molecular pathways involved in these dynamic events is necessary for studying the underlying process that promotes neuronal regeneration...
May 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28614141/role-of-hemorrhagic-shock-in-experimental-polytrauma
#10
Stephanie Denk, Sebastian Weckbach, Philipp Eisele, Christian K Braun, Rebecca Wiegner, Julia J Ohmann, Lisa Wrba, Felix M Hoenes, Philipp Kellermann, Peter Radermacher, Ulrich Wachter, Sebastian Hafner, Oscar McCook, Anke Schultze, Annette Palmer, Sonja Braumüller, Florian Gebhard, Markus Huber-Lang
Hemorrhagic shock (HS) after tissue trauma increases the complication and mortality rate of polytrauma (PT) patients. Although several murine trauma models have been introduced, there is a lack of knowledge about the exact impact of an additional HS. We hypothesized that HS significantly contributes to organ injury, which can be reliably monitored by detection of specific organ damage markers.Therefore we established a novel clinically relevant PT plus HS model in C57BL/6 mice which were randomly assigned to control, HS, PT or PT+HS procedure (n = 8 per group)...
June 13, 2017: Shock
https://www.readbyqxmd.com/read/28613081/maintenance-of-negative-fluid-balance-can-improve-endothelial-and-cardiac-functions-in-primary-hypertensive-patients
#11
Ali Yeşiltepe, Oguzhan Sıtkı Dizdar, Hasan Gorkem, Engin Dondurmacı, Eyup Ozkan, Ali Koç, Ahmet Oguz Baktır, Ali Ihsan Gunal
PURPOSE: The issue of unidentified volume expansion is well recognized as a cause for resistance to antihypertensive therapy. The aim of study is to identify contribution of negative fluid balance to hypertension control and impact on endothelial and cardiac functions among primary hypertensive patients who do not have kidney failure. MATERIALS AND METHODS: This is a prospective interventional study with one-year follow-up. Preceded by volume status measurements were performed by a body composition monitor (BCM), the patients were put on ambulatory blood pressure monitoring for 24 hours...
June 14, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28612542/-establishment-of-bone-metastasis-model-of-prostate-cancer-in-mice-with-monitoring-of-18-f-naf-pet-ct
#12
Qiang You, Hua-Wei Cai, Fu-Wen Pang, Zhe-Tao Wang, Yue Chen, Rong Tian, Lin Li, Li-Hong Chen
OBJECTIVES: To establish a mouse model bearing human prostate cancer xenograft with bone metastasis by the monitoring with X-Ray, Micro CT, and ¹⁸F-NaF PET/CT. METHODS: Sixteen male Balb/c nude mice were allocated into control (6 mice) and experimental group (10 mice). In experimental group, the mice were subjected to percutaneous injection of 2×10(5)PC-3 cells into tibial plateau, bone defects were assessed after 21 d by X-ray, Micro-CT and ¹⁸F-NaF PET/CT, and bone damages were evaluated by HE staining...
March 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28612261/low-concentrations-of-antimony-impair-dna-damage-signaling-and-the-repair-of-radiation-induced-dsb-in-hela-s3-cells
#13
Barbara Koch, Elena Maser, Andrea Hartwig
Antimony is utilized in a large variety of industrial applications, leading to significant environmental and occupational exposure. Mainly based on animal experiments, the IARC and MAK Commission have classified antimony and its inorganic compounds as Group 2B or 2 carcinogens, respectively. However, the underlying mode(s) of action are still largely unknown. In the present study, we investigated the impact of non-cytotoxic up to cytotoxic concentrations of SbCl3 on DNA DSB repair and cell cycle control in HeLa S3 cells...
June 13, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28602739/adjuvant-effect-of-recombinant-interleukin-12-in-the-nocardiosis-formalin-killed-vaccine-of-the-amberjack-seriola-dumerili
#14
Megumi Matsumoto, Kyosuke Araki, Kazuma Hayashi, Yutaka Takeuchi, Kazuhiro Shiozaki, Hiroaki Suetake, Atsushi Yamamoto
Nocardiosis causes serious economic damage in the fish farming of Japanese yellowtail fish. Nocardia seriolae identified as pathogenic bacterium is an intracellular-pathogen. In general, induction of cell-mediated immunity (CMI) is effective in infection defense against intracellular-pathogen. However, the conventional formalin-killed N. seriolae (FKC) vaccine induces humoral immunity. Interleukin-12 (IL-12) is Th1 type heterodimeric cytokine and induces cell differentiation in mammals. Our previous study showed that recombinant amberjack IL-12 has a role in CMI induction in vitro and could be a possible CMI inducing adjuvant...
June 7, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28601494/a-comparative-analysis-of-translesion-dna-synthesis-catalyzed-by-a-high-fidelity-dna-polymerase
#15
Anvesh Dasari, Tejal Deodhar, Anthony J Berdis
Translesion DNA synthesis (TLS) is the ability of DNA polymerases to incorporate nucleotides opposite and beyond damaged DNA. TLS activity is an important risk factor for the initiation and progression of genetic diseases such as cancer. In this study, we evaluate the ability of a high-fidelity DNA polymerase to perform TLS with 8-oxo-guanine, a highly pro-mutagenic DNA lesion formed by reactive oxygen species. Results of kinetic studies monitoring the incorporation of modified nucleotide analogs demonstrate that the binding affinity of the incoming dNTP is controlled by the overall hydrophobicity of the nucleobase...
June 7, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28599666/access-to-and-use-of-long-lasting-insecticidal-nets-and-factors-associated-with-non-use-among-communities-in-malaria-endemic-areas-of-al-hudaydah-governorate-in-the-tihama-region-west-of-yemen
#16
Samira M A Al-Eryani, Mohammed A K Mahdy, Abdulsalam M Al-Mekhlafi, Rashad Abdul-Ghani
BACKGROUND: Universal coverage of the targeted malaria-endemic areas with long-lasting insecticidal nets (LLINs) is implemented as one of the key interventions for malaria control and elimination in Yemen. In 2013, through a mass campaign, LLINs were distributed to the targeted communities in Al Hudaydah governorate. This study aimed to assess the ownership of, access to, and use of LLINs. It also aimed to identify factors associated with not using LLINs in malaria-endemic areas of Al Hudaydah in the Tihama region, west of Yemen...
June 9, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28598905/military-use-of-txa-in-combat-trauma-does-it-matter
#17
Jeffrey T Howard, Zsolt T Stockinger, Andrew P Cap, Jeffrey A Bailey, Kirby R Gross
BACKGROUND: Tranexamic acid (TXA) has been previously reported to have a mortality benefit in civilian and combat-related trauma, and was thus added to the Joint Theater Trauma System Damage Control Resuscitation Clinical Practice Guideline. As part of ongoing system-wide performance improvement, the use of TXA has been closely monitored. The goal was to evaluate the efficacy and safety of TXA use in military casualties and provide additional guidance for continued use. METHODS: A total of 3,773 casualties were included in this retrospective, observational study of data gathered from a trauma registry...
June 9, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28595780/the-beneficial-effects-of-zinc-on-diabetes-induced-kidney-damage-in-murine-rodent-model-of-type-1-diabetes-mellitus
#18
Fan Yang, Bing Li, Xiaoming Dong, Wenpeng Cui, Ping Luo
Diabetes mellitus is a chronic multi-factorial metabolic disorder resulting from impaired glucose homeostasis. Zinc is a key co-factor for the correct functioning of anti-oxidant enzymes. Zinc deficiency therefore, impairs their synthesis, leading to increased oxidative stress within cells. Zinc deficiency occurs commonly in diabetic patients. The aim of this study is to investigate the effects of varying concentrations of zinc on diabetic nephropathy (DN) and the underlying mechanisms involved. FVB male mice aged 8 weeks were injected intraperitoneally with multiple low-dose streptozotocin at a concentration of 50mg/kg body weight daily for 5 days...
July 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28594979/use-of-corneal-confocal-microscopy-to-evaluate-small-nerve-fibers-in-patients-with-human-immunodeficiency-virus
#19
Harriet I Kemp, Ioannis N Petropoulos, Andrew S C Rice, Jan Vollert, Christoph Maier, Dietrich Strum, Marc Schargus, Tunde Peto, Scott Hau, Reena Chopra, Rayaz A Malik
Importance: Objective quantification of small fiber neuropathy in patients with human immunodeficiency virus (HIV)-associated sensory neuropathy (HIV-SN) is difficult but needed for diagnosis and monitoring. In vivo corneal confocal microscopy (IVCCM) can quantify small fiber damage. Objective: To establish whether IVCCM can identify an abnormality in corneal nerve fibers and Langerhans cells in patients with and without HIV-SN. Design, Setting, and Participants: This prospective, cross-sectional cohort study was conducted between July 24, 2015, and September 17, 2015...
June 8, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28589660/simultaneous-quantification-of-bone-edema-adiposity-and-structure-in-inflamed-bone-using-chemical-shift-encoded-mri-in-spondyloarthritis
#20
Timothy J P Bray, Alan Bainbridge, Shonit Punwani, Yiannis Ioannou, Margaret A Hall-Craggs
PURPOSE: To evaluate proton density fat fraction (PDFF) and R2* as markers of bone marrow composition and structure in inflamed bone in patients with spondyloarthritis. METHODS: Phantoms containing fat, water, and trabecular bone were constructed with proton density fat fraction (PDFF) and bone mineral density (BMD) values matching those expected in healthy bone marrow and disease states, and scanned using chemical shift-encoded MRI (CSE-MRI) at 3T. Measured PDFF and R2* values in phantoms were compared with reference FF and BMD values...
June 6, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
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