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https://www.readbyqxmd.com/read/29231877/effects-of-resveratrol-lovastatin-and-the-mtor-inhibitor-rad-001-on-insulin-induced-genomic-damage-in-vitro
#1
Eman Awad, Eman M Othman, Helga Stopper
Diabetes mellitus (DM) is one of the major current health problems due to lifestyle changes. Before diagnosis and in the early years of disease, insulin blood levels are elevated. However, insulin generates low levels of reactive oxygen species (ROS) which are integral to the regulation of a variety of intracellular signaling pathways, but excess levels of insulin may also lead to DNA oxidation and DNA damage. Three pharmaceutical compounds, resveratrol, lovastatin and the mTOR-inhibitor RAD-001, were investigated due to their known beneficial effects...
December 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29230719/resveratrol-and-or-exercise-training-counteract-aging-associated-decline-of-physical-endurance-in-aged-mice-targeting-mitochondrial-biogenesis-and-function
#2
Marwa Hassan Muhammad, Mona Maher Allam
Mitochondrial dysfunction and decreased mitochondrial content are hallmarks of aging that leads to decreased physical endurance. Our aim was to explore the anti-aging effect of resveratrol (RSVT) supplementation, a polyphenol, and/or exercise training, started at an older age, on improving physical activity, therefore, help in frailty avoidance and promotion of healthy aging in elderly. Eighteen-month-old aged mice received RSVT (15 mg/kg/day) and/or exercise trained for 4 weeks showed significant longer time to exhaustion with decreased blood lactate and free fatty acids levels associated with improved oxidative stress evidenced by decreased gastrocnemius muscle lipid peroxidation and increased antioxidant enzymes activities, catalase and superoxide dismutase, when compared to aged mice control group...
December 11, 2017: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/29230672/the-role-of-b-cell-maturation-antigen-in-the-biology-and-management-of-and-as-a-potential-therapeutic-target-in-multiple-myeloma
#3
Eric Sanchez, Emily J Smith, Moryel A Yashar, Saurabh Patil, Mingjie Li, Autumn L Porter, Edward J Tanenbaum, Remy E Schlossberg, Camilia M Soof, Tara Hekmati, George Tang, Cathy S Wang, Haiming Chen, James R Berenson
B-cell maturation antigen (BCMA) was originally identified as a cell membrane receptor, expressed exclusively on late stage B-cells and plasma cells (PCs). Investigations of BCMA as a target for therapeutic intervention in multiple myeloma (MM) were initiated in 2007, using cSG1 as a naked antibody (Ab) as well as an Ab-drug conjugate (ADC) targeting BCMA, ultimately leading to ongoing clinical studies for previously treated MM patients. Since then, multiple companies have developed anti-BCMA-directed ADCs...
December 11, 2017: Targeted Oncology
https://www.readbyqxmd.com/read/29230608/combinatorial-therapy-with-two-pro-coagulants-and-one-osmotic-agent-reduces-the-extent-of-the-lesion-in-the-acute-phase-of-spinal-cord-injury-in-the-rat
#4
Mathieu Boutonnet, Elisabeth Laemmel, Eric Vicaut, Jacques Duranteau, Marc Soubeyrand
BACKGROUND: Spinal cord injury (SCI) is a complex disease that leads to a motor, sensitive, and vegetative impairment. So far, single therapies are ineffective for treating SCI in humans and a multifactorial therapeutic approach may be required. The aim of this work was to assess the effect of a triple therapy (TT) associating two pro-coagulant therapies (tranexamic acid and fibrinogen) with an anti-edema therapy (hypertonic saline solution), on the extent of the lesion 24 h post-injury...
December 11, 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/29230100/dl-3-n-butylphthalide-prevents-the-disruption-of-blood-spinal-cord-barrier-via-inhibiting-endoplasmic-reticulum-stress-following-spinal-cord-injury
#5
Binbin Zheng, Yulong Zhou, Hongyu Zhang, Guangyong Yang, Zhenghua Hong, Dandan Han, Qingqing Wang, Zili He, Yanlong Liu, Fenzan Wu, Xie Zhang, Songlin Tong, Huazi Xu, Jian Xiao
After spinal cord injury (SCI), the destruction of blood-spinal cord barrier (BSCB) is shown to accelerate gathering of noxious blood-derived components in the nervous system, leading to secondary neurodegenerative damages. SCI activates endoplasmic reticulum stress (ER stress), which is considered to evoke secondary damages of neurons and glia. Recent evidence indicates that Dl-3-n-butylphthalide (NBP) has the neuroprotective effect in ischaemic brain injury, but whether it has protective effects on SCI or not is largely unclear...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/29229863/noncanonical-thyroid-hormone-signaling-mediates-cardiometabolic-effects-in-vivo
#6
G Sebastian Hönes, Helena Rakov, John Logan, Xiao-Hui Liao, Eugenie Werbenko, Andrea S Pollard, Stine M Præstholm, Majken S Siersbæk, Eddy Rijntjes, Janina Gassen, Sören Latteyer, Kathrin Engels, Karl-Heinz Strucksberg, Petra Kleinbongard, Denise Zwanziger, Jan Rozman, Valerie Gailus-Durner, Helmut Fuchs, Martin Hrabe de Angelis, Ludger Klein-Hitpass, Josef Köhrle, David L Armstrong, Lars Grøntved, J H Duncan Bassett, Graham R Williams, Samuel Refetoff, Dagmar Führer, Lars C Moeller
Thyroid hormone (TH) and TH receptors (TRs) α and β act by binding to TH response elements (TREs) in regulatory regions of target genes. This nuclear signaling is established as the canonical or type 1 pathway for TH action. Nevertheless, TRs also rapidly activate intracellular second-messenger signaling pathways independently of gene expression (noncanonical or type 3 TR signaling). To test the physiological relevance of noncanonical TR signaling, we generated knockin mice with a mutation in the TR DNA-binding domain that abrogates binding to DNA and leads to complete loss of canonical TH action...
December 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29229785/the-chemokine-receptor-cx3cr1-coordinates-monocyte-recruitment-and-endothelial-regeneration-after-arterial-injury
#7
Tobias Getzin, Kashyap Krishnasamy, Jaba Gamrekelashvili, Tamar Kapanadze, Anne Limbourg, Christine Häger, L Christian Napp, Johann Bauersachs, Hermann Haller, Florian P Limbourg
Regeneration of arterial endothelium after injury is critical for the maintenance of normal blood flow, cell trafficking, and vascular function. Using mouse models of carotid injury, we show that the transition from a static to a dynamic phase of endothelial regeneration is marked by a strong increase in endothelial proliferation, which is accompanied by induction of the chemokine CX3CL1 in endothelial cells near the wound edge, leading to progressive recruitment of Ly6Clo monocytes expressing high levels of the cognate CX3CR1 chemokine receptor...
December 11, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/29229445/optical-coherence-tomography-angiography
#8
REVIEW
Richard F Spaide, James G Fujimoto, Nadia K Waheed, Srinivas R Sadda, Giovanni Staurenghi
Optical coherence tomography (OCT) was one of the biggest advances in ophthalmic imaging. Building on that platform, OCT angiography (OCTA) provides depth resolved images of blood flow in the retina and choroid with levels of detailed far exceeding that obtained with older forms of imaging. This new modality is challenging because of the need for new equipment and processing techniques, current limitations of imaging capability, and rapid advancements in both imaging and in our understanding of the imaging and applicable pathophysiology of the retina and choroid, and the requirement for understanding the origins of image artifacts...
December 8, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/29229321/the-role-of-aspirin-heparin-and-other-interventions-in-the-prevention-and-treatment-of-fetal-growth-restriction
#9
REVIEW
Katie M Groom, Anna L David
Fetal growth restriction and related placental pathologies such as preeclampsia, stillbirth, and placental abruption are believed to arise in early pregnancy when inadequate remodeling of the maternal spiral arteries leads to persistent high-resistance and low-flow uteroplacental circulation. The consequent placental ischaemia, reperfusion injury, and oxidative stress are associated with an imbalance in angiogenic/antiangiogenic factors. Many interventions have centered on the prevention and/or treatment of preeclampsia with results pertaining to fetal growth restriction and small-for-gestational-age pregnancy often included as secondary outcomes because of the common pathophysiology...
December 8, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29229114/estradiol-mediates-the-long-lasting-lung-inflammation-induced-by-intestinal-ischemia-and-reperfusion
#10
Evelyn Thais Fantozzi, Ana Cristina Breithaupt-Faloppa, Fernanda Yamamoto Ricardo-da-Silva, Sara Rodrigues-Garbin, Daniel Cancelli Romero, Adriana da Silva Rodrigues, Yanira Riffo-Vasquez, Wothan Tavares-de-Lima
BACKGROUND: Lung inflammation is one of the main consequences of intestinal ischemia reperfusion (intestinal IR) and, in severe cases, can lead to acute respiratory distress syndrome and death. We have previously demonstrated that estradiol exerts a protective effect on lung edema and cytokine release caused by intestinal IR in male rats. MATERIALS AND METHODS: We investigated the role of estradiol on the generation of interleukin (IL)-1β, IL-10, vascular endothelial growth factor (VEGF), and cytokine-induced neutrophil chemoattractant 1 (CINC-1) in a female rat model of intestinal IR...
January 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29228902/a-methodological-consideration-for-blood-lead-concentrations-obtained-from-the-earlobe-in-japanese-adults-occupationally-unexposed-to-lead
#11
Nozomi Tatsuta, Kunihiko Nakai, Miyuki Iwai-Shimada, Futoshi Mizutani, Katsuyuki Murata, Yoichi Chisaki, Hiroshi Satoh
BACKGROUND: Neuropsychological effects of considerably low levels of lead exposure are observed in children, and a reliable and possibly painless technique that can detect such levels is required for the assessment of such exposure. We examined whether the blood lead (BPb) concentrations obtained from the earlobe were as valid and useful as those from the median cubital vein. METHODS: Paired blood samples were collected from the earlobe and cubital vein of 112 Japanese participants occupationally unexposed to lead, and the BPb levels were determined using ICP-MS...
December 11, 2017: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29228828/trace-elements-profiles-of-maternal-blood-umbilical-cord-blood-and-placenta-in-beijing-china
#12
Cui Zhou, Ran Zhang, Xueping Cai, Rong Xiao, Yu Huanling
Profiles of heavy metals chromium (Cr), manganese (Mn), arsenic (As), lead (Pb), cadmium (Cd) and micronutrients ferrum (Fe), copper (Cu), zinc (Zn), selenium (Se) in maternal and umbilical cord blood clots were investigated for assessing placenta function in the transport of micronutrients or heavy metal pollutants. Correlations between contents of elements in the two tissues were also analyzed. Results demonstrated significantly lower levels of Cr, Pb and Cd in umbilical cord blood clots than in maternal blood clots, and negative relationship between lead levels in maternal and umbilical cord blood (r = -0...
December 11, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29228758/elevated-serum-fibrinogen-level-is-an-independent-risk-factor-for-iga-nephropathy
#13
Ji Zhang, Chaosheng Chen, Qiongxiu Zhou, Shubei Zheng, Yinqiu Lv, Jianna Zhang, Xiaohan You, Zhanyuan Li, Zhihong Zhou, Min Pan
Background: IgA nephropathy is a primary cause of renal failure, and inflammation and renal fibrosis are the main mechanisms leading to kidney damage. The serum fibrinogen level is closely related to inflammatory states, but its relationship to the prognosis of IgA nephropathy (IgAN) is unclear. Materials and Methods: 1053 patients diagnosed with IgAN after renal biopsy were enrolled from two Nephrology Departments. Demographic and clinical data and histopathological features were collected...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228364/age-dependent-changes-in-mean-and-variance-of-gene-expression-across-tissues-in-a-twin-cohort
#14
Ana Viñuela, Andrew A Brown, Alfonso Buil, Pei-Chien Tsai, Matthew N Davies, Jordana T Bell, Emmanouil T Dermitzakis, Timothy D Spector, Kerrin S Small
Changes in mean and variance of gene expression with age have consequences for healthy aging and disease development. Age-dependent changes in phenotypic variance have been associated to a decline in regulatory functions leading to increase in disease risk. Here we investigate age-related mean and variance changes in gene expression measured by RNA-seq of fat, skin, whole blood and derived lymphoblastoid cell lines (LCLs) expression from 855 adult female twins. We see evidence of up to 60% of age effects on transcription levels shared across tissues, and 47% of those on splicing...
December 8, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29228031/transcriptional-profiling-of-pbmcs-unravels-b-cell-mediated-immunopathogenic-imprints-of-hcv-vasculitis
#15
Emily Comstock, Cheol-Woo Kim, Alison Murphy, Benjamin Emmanuel, Xi Zhang, Michael Sneller, Bhawna Poonia, Shyamasundaran Kottilil
B cell depletion therapy using rituximab has been shown to be effective in achieving remission in patients with HCV-mixed cryoglobulinemic (MC) vasculitis. Previously, we have demonstrated abnormalities in peripheral immune cells involving neutrophils, chemotaxis, and innate immune activation among patients with HCV-MC vasculitis when compared to HCV patients without vasculitis. In this study, we evaluated the effect of B cell depletion therapy on transcriptional profiles of peripheral blood mononuclear cells before and after riruximab therapy, in order to unravel the pathogenic mechanism involved in HCV-MC vasculitis induced by abnormal B cell proliferation...
2017: PloS One
https://www.readbyqxmd.com/read/29227263/-adaptive-regulatory-mechanisms-of-alopecia-areata
#16
L Bolotnaja, I Serbina
Failure of adaptive mechanisms leads to structural and functional damage at all levels and of neuroendocrinal and immune systems, which are pathogenetic basis of development of autoimmune diseases, in particular. The objective of this work was to assess the condition of adaptive hormones, such as cortisol and insulin, coefficient of stress of adaptive potential "K" and also dermatologic life quality index (DLQI) of the diseased with alopecia areata (AA). 48 patients with different forms of AA aged between 18 and 52 were examined...
November 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29227262/-combined-course-of-bronchial-asthma-and-gastroesophageal-reflux-disease-its-clinical-functional-peculiarities-and-mechanisms-of-its-correction
#17
M Derbak, O Boldizhar, Ye Sirchak, Ya Lazur, M Aleksandrova
The combined course of bronchial asthma (BA) and digestive system pathology is one of the most frequent, severe and clinically varied pathology. The purpose of the paper - to study the influence of gastroesophageal reflux disease (GERD) on the course of BA and the effectiveness of antireflux therapy in combined pathology. Patients with combined pathology were treated in full-time department more frequently than patients with isolated BA (3,4±0,5 per year to - 1,8±0,3; р<0,05). The statistically reliable correlation between frequency of heartburn and frequency of cough, which goes over to asthma attacks was observed (r=0,59; р<0,05)...
November 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29227051/serum-alcohol-levels-correlate-with-injury-severity-and-resource-utilization
#18
A I Elshiere, M A Noorbhai, T E Madiba
BACKGROUND: Alcohol consumption leads to violence and poor judgement. The resultant trauma is the leading cause of emergency department visits. In South Africa, alcohol-related emergency visits can be as high as 57%. The purpose of this prospective study was to establish the prevalence of positive blood alcohol and Blood Alcohol Concentration (BAC) at a tertiary trauma unit in Durban, and to correlate it with injury severity, length of hospital stay and resource utilization. METHOD: A total of 100 patients from King Edward trauma unit were analysed prospectively during the period December 2014 to February 2015...
November 2017: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/29226714/-analysis-of-d-dimer-laboratory-findings-and-clinical-evaluation
#19
János Jákó
D-dimer is a product of the enzymatic degradation of the fibrinogen-fibrin molecule, and its existence is demonstrable in circulation. The test based limits may be considered as normal values. It was first thought to be a product of coagulation, then a product of lysis. High-concentration D-dimer in blood detected in thromboembolic diseases is considered to be of diagnostic value. In cases where thromboembolism was ruled out despite elevated titres but heparin (LMWH) or CLOPIDOGREL was given as a cautionary measure, we found that D-dimer values remained elevated...
December 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29226267/orbitofrontal-cortex-activity-and-connectivity-predict-future-depression-symptoms-in-adolescence
#20
Jingwen Jin, Ananth Narayanan, Greg Perlman, Katherine Luking, Christine DeLorenzo, Greg Hajcak, Daniel N Klein, Roman Kotov, Aprajita Mohanty
Background: Major depressive disorder is a leading cause of disability worldwide; however, little is known about pathological mechanisms involved in its development. Research in adolescent depression has focused on reward sensitivity and striatal mechanisms implementing it. The contribution of loss sensitivity to future depression, as well as the orbitofrontal cortex (OFC) mechanisms critical for processing losses and rewards, remain unexplored. Furthermore, it is unclear whether OFC functioning interacts with familial history in predicting future depression...
October 2017: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
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