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https://www.readbyqxmd.com/read/28319106/a-systematic-review-on-the-impact-of-diabetes-mellitus-on-the-ocular-surface
#1
REVIEW
K Co Shih, K S-L Lam, L Tong
Diabetes mellitus is associated with extensive morbidity and mortality in any human community. It is well understood that the burden of diabetes is attributed to chronic progressive damage in major end-organs, but it is underappreciated that the most superficial and transparent organ affected by diabetes is the cornea. Different corneal components (epithelium, nerves, immune cells and endothelium) underpin specific systemic complications of diabetes. Just as diabetic retinopathy is a marker of more generalized microvascular disease, corneal nerve changes can predict peripheral and autonomic neuropathy, providing a window of opportunity for early treatment...
March 20, 2017: Nutrition & Diabetes
https://www.readbyqxmd.com/read/28318829/toll-like-receptor-4-inhibitor-protects-against-retinal-ganglion-cell-damage-induced-by-optic-nerve-crush-in-mice
#2
Yukimichi Nakano, Masamitsu Shimazawa, Kazuki Ojino, Hiroshi Izawa, Hiroto Takeuchi, Yuki Inoue, Kazuhiro Tsuruma, Hideaki Hara
Toll-like receptor 4 (TLR4) plays key roles in innate immune responses and inflammatory reactions. TAK-242 (resatorvid) is a small-molecule cyclohexene derivative that selectively inhibits TLR4 signaling pathways and suppresses inflammatory reactions. Here we investigated the protective effects of TAK-242 against optic nerve crush (ONC) which induces axonal injury like glaucoma in mice. TAK-242 was injected intravitreally immediately after ONC. The effect of TAK-242 was evaluated by measuring the number of fluorogold-labeled retinal ganglion cells (RGCs) at 10 days after ONC...
March 2, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28315180/inflammation-based-indexes-and-clinicopathologic-features-are-strong-predictive-values-of-preoperative-circulating-tumor-cell-detection-in-gastric-cancer-patients
#3
L Zheng, K Zou, C Yang, F Chen, T Guo, B Xiong
PURPOSE: Circulating tumor cell (CTC) count and the host inflammatory response are two independent predictors for patients with various malignant disease. Several inflammation-based indicators have been demonstrated to have prognostic value in many malignant solid tumors, including systemic immune-inflammation index (SII), neutrophil lymphocyte ratio (NLR), platelet lymphocyte ratio (PLR), and prognostic nutrition index (PNI). The aim of this study was to evaluate the predictive value of the inflammation-based indexes including SII, NLR PLR, and PNI for CTC detection of gastric cancer patients before surgery...
March 17, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28303912/new-technologies-for-the-assessment-of-neuropathies
#4
REVIEW
Roberto Gasparotti, Luca Padua, Chiara Briani, Giuseppe Lauria
Technical advances are rapidly changing the clinical and instrumental approach to peripheral nerve diseases. Magnetic resonance neurography, diffusion tensor imaging and nerve ultrasonography are increasingly entering the diagnostic workup of peripheral neuropathies as tools that complement neurophysiology and enable investigation of proximal structures, such as plexuses and roots. Progress in the design of magnetic resonance scanners and sequences, and the development of high-frequency ultrasound probes mean that high-resolution peripheral nerve imaging is possible, enabling detailed examination of nerve size, morphology and internal fascicular structure that can integrate nerve conduction studies into clinical practice...
March 17, 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/28302022/glial-cell-a-potential-target-for-cellular-and-drug-based-therapy-in-various-cns-diseases
#5
Shakeeb Ahmed, Yasmin Sultana, Azka Gull, Tahir Khuroo, Mohd Aqil
Glial cells are integrated part of neurovascular unit of blood brain barrier (BBB). They undergo mitosis and mainly classified as astrocytes, oligodendrocytes, microglia, ependymal cells and nerve glial antigen 2 cells. Being a most versatile glial cell, astrocytes provide structural support to neurons, maintain brain homeostasis, take part in neuronal communication, and perform some housekeeping functions. Oligodendrocytes myelinate the neuronal axons for proper transmission of nerve impulse and microglia are brain immune cells...
March 16, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28300644/the-connective-tissue-phenotype-of-glaucomatous-cupping-in-the-monkey-eye-clinical-and-research-implications
#6
REVIEW
Hongli Yang, Juan Reynaud, Howard Lockwood, Galen Williams, Christy Hardin, Luke Reyes, Cheri Stowell, Stuart K Gardiner, Claude F Burgoyne
In a series of previous publications we have proposed a framework for conceptualizing the optic nerve head (ONH) as a biomechanical structure. That framework proposes important roles for intraocular pressure (IOP), IOP-related stress and strain, cerebrospinal fluid pressure (CSFp), systemic and ocular determinants of blood flow, inflammation, auto-immunity, genetics, and other non-IOP related risk factors in the physiology of ONH aging and the pathophysiology of glaucomatous damage to the ONH. The present report summarizes 20 years of technique development and study results pertinent to the characterization of ONH connective tissue deformation and remodeling in the unilateral monkey experimental glaucoma (EG) model...
March 12, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28299359/aifm1-mutation-presenting-with-fatal-encephalomyopathy-and-mitochondrial-disease-in-an-infant
#7
Sarah U Morton, Sanjay P Prabhu, Hart G W Lidov, Jiahai Shi, Irina Anselm, Catherine A Brownstein, Matthew N Bainbridge, Alan H Beggs, Sara O Vargas, Pankaj B Agrawal
Apoptosis-inducing factor mitochondrion-associated 1 (AIFM1), encoded by the gene AIFM1, has roles in electron transport, apoptosis, ferredoxin metabolism, reactive oxygen species generation, and immune system regulation. Here we describe a patient with a novel AIFM1 variant presenting unusually early in life with mitochondrial disease, rapid deterioration, and death. Autopsy, at the age of 4 mo, revealed features of mitochondrial encephalopathy, myopathy, and involvement of peripheral nerves with axonal degeneration...
March 2017: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/28292401/what-bariatric-surgery-can%C3%A2-teach-us-about-endoluminal-treatment-of-obesity%C3%A2-and-metabolic-disorders
#8
REVIEW
Lee M Kaplan
Bariatric surgical procedures, including gastric bypass, vertical sleeve gastrectomy, and biliopancreatic diversion, are the most effective and durable treatments for obesity. In addition, These operations induce metabolic changes that provide weight-independent improvement in type 2 diabetes, fatty liver disease and other metabolic disorders. Initially thought to work by mechanical restriction of food intake or malabsorption of ingested nutrients, these procedures are now known to work through complex changes in neuroendocrine and immune signals emanating from the gut, including peptide hormones, bile acids, vagal nerve activity, and metabolites generated by the gut microbiota, all collaborating to reregulate appetite, food preference, and energy expenditure...
April 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/28291971/can-gut-microbes-play-a-role-in-mental-disorders-and-their-treatment
#9
Klara Latalova, Miroslav Hajda, Jan Prasko
The gut microbes, collectively called microbiota, are linked to the brain through a bidirectional system that involves the vagus nerve, the immune system, and various neurotransmitters. Stress response, memory functions, social behavior, and mood are modulated by microbiota. Furthermore, microbiota play a role in the development of the central nervous system. These features, established largely in rodent studies, have informed hypotheses about the role of microbiota in human psychiatric disorders. Microbiota affect phenomena that are known to be parts of the depression phenotype, such as exaggerated response to stress and inflammatory features...
March 2017: Psychiatria Danubina
https://www.readbyqxmd.com/read/28290914/-nonplatelet-effects-of-ticagrelor
#10
V V Boiko, G N Soboleva
This review summarizes current knowledge concerning "nonplatelet effects of P2Y12 receptor antagonist ticagrelor. We show the experimental and clinical evidence that ticagrelor increases plasma concentration of adenosine as a potential mechanism of additive effects of ticagrelor. In addition, we sought to compare the clinical profile of ticagrelor with pharmacological effects of adenosine and discuss from this point of view the effects of ticagrelor on vascular tone, cardiac electrophysiology, ischemia/reperfusion injury, immunity and inflammatory reactions, peripheral nerves...
July 2016: Kardiologiia
https://www.readbyqxmd.com/read/28288663/macrophage-and-nerve-interaction-in-endometriosis
#11
REVIEW
Jinjie Wu, Hongyu Xie, Shuzhong Yao, Yanchun Liang
Dysregulation of the immune system in endometriotic milieus has been considered to play a pivotal role in the pathogenesis of endometriosis. Macrophage recruitment and nerve fiber infiltration are the two major characteristics of this aberrant immune environment. First, the recruitment of macrophages and their polarization phenotype within the endometriotic lesion have been demonstrated to facilitate the development and maintenance of endometriosis. M1 phenotype of macrophages has the capacity to secrete multiple cytokines for inflammatory response, while M2 macrophage possesses an opposite property that can mediate the process of immunosuppression and neuroangiogenesis...
March 14, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28287513/an-ex-vivo-method-for-time-lapse-imaging-of-cultured-rat-mesenteric-microvascular-networks
#12
Mohammad S Azimi, Jessica M Motherwell, Walter L Murfee
Angiogenesis, defined as the growth of new blood vessels from pre-existing vessels, involves endothelial cells, pericytes, smooth muscle cells, immune cells, and the coordination with lymphatic vessels and nerves. The multi-cell, multi-system interactions necessitate the investigation of angiogenesis in a physiologically relevant environment. Thus, while the use of in vitro cell-culture models have provided mechanistic insights, a common critique is that they do not recapitulate the complexity associated with a microvascular network...
February 9, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28284349/4-aminopyridine-ameliorates-experimental-autoimmune-neuritis-in-lewis-rats
#13
Kota Moriguchi, Katsuichi Miyamoto, Susumu Kusunoki
We investigated the effect of 4-aminopyridine (4-AP) on experimental autoimmune neuritis (EAN) using a 4-AP-treated group in which 4-AP was administered in the diet, and a control group (n=10 per group). Electrophysiological and pathological assessment was performed in the sciatic nerve. The EAN clinical scores were significantly lower in the 4-AP-treated group than in the control group (p<0.05). The motor conductance velocity two weeks post-immunization was significantly higher in the 4-AP-treated group (p<0...
April 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28284341/mog-antibody-associated-demyelinating-disease-of-the-cns-a-clinical-and-pathological-study-in-chinese-han-patients
#14
Lei Zhou, Yongheng Huang, Haiqing Li, Jie Fan, Jingzi Zhangbao, Hai Yu, Yuxin Li, Jiahong Lu, Chongbo Zhao, Chuanzhen Lu, Min Wang, Chao Quan
We aim to evaluate the clinical relevance of MOG-ab in a cohort of Chinese Han adults with CNS inflammatory demyelinating diseases (IDDs). MOG-ab and AQP4-ab were examined through a fixed cell based indirect immune-fluorescence assay in 86 patients with CNS-IDDs. MOG-ab was positive in 12 patients, while AQP4-ab was positive in 31 patients; none double positives. Optic neuritis (ON) was the most frequent symptom at onset (75.0%) or during the whole disease course (83.3%) of MOG-ab associated IDDs (MOG-IDDs); 79...
April 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28278237/zika-virus-infection-of-rhesus-macaques-leads-to-viral-persistence-in-multiple-tissues
#15
Alec J Hirsch, Jessica L Smith, Nicole N Haese, Rebecca M Broeckel, Christopher J Parkins, Craig Kreklywich, Victor R DeFilippis, Michael Denton, Patricia P Smith, William B Messer, Lois M A Colgin, Rebecca M Ducore, Peta L Grigsby, Jon D Hennebold, Tonya Swanson, Alfred W Legasse, Michael K Axthelm, Rhonda MacAllister, Clayton A Wiley, Jay A Nelson, Daniel N Streblow
Zika virus (ZIKV), an emerging flavivirus, has recently spread explosively through the Western hemisphere. In addition to symptoms including fever, rash, arthralgia, and conjunctivitis, ZIKV infection of pregnant women can cause microcephaly and other developmental abnormalities in the fetus. We report herein the results of ZIKV infection of adult rhesus macaques. Following subcutaneous infection, animals developed transient plasma viremia and viruria from 1-7 days post infection (dpi) that was accompanied by the development of a rash, fever and conjunctivitis...
March 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28276831/pancreatic-cancer-stroma-controversies-and-current-insights
#16
Daniel Ansari, Maria Carvajo, Monika Bauden, Roland Andersson
Pancreatic cancer is characterized by a dense stromal response. The stroma includes a heterogeneous mass of cells, including pancreatic stellate cells, fibroblasts, immune cells and nerve cells, as well as extracellular matrix proteins, cytokines and growth factors, which interact with the tumor cells. Previous research has indicated that stromal elements contribute to tumor growth and aggressiveness. However, recent studies suggest that some elements of the stroma may actually restrain the tumor. This review focuses on the complex interactions between the stromal microenvironment and tumor cells, discussing molecular mechanisms and potential future diagnostic and therapeutic approaches by targeting the stroma...
February 24, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28270169/molecules-in-pain-and-sex-a-developing-story
#17
REVIEW
Josiane C S Mapplebeck, Simon Beggs, Michael W Salter
Microglia are dynamic immune cells with diverse roles in maintaining homeostasis of the central nervous system. Dysregulation of microglia has been critically implicated in the genesis of neuropathic pain. Peripheral nerve injury, a common cause of neuropathic pain, engages microglia-neuronal signalling which causes disinhibition and facilitated excitation of spinal nociceptive pathways. However, recent literature indicates that the role of microglia in neuropathic pain is sexually dimorphic, and that female pain processing appears to be independent of microglia, depending rather on T cells...
March 7, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28265836/pro-inflammatory-cytokines-involvement-in-the-hesperidin-antihyperalgesic-effects-at-peripheral-and-central-levels-in-a-neuropathic-pain-model
#18
A I Carballo-Villalobos, M E González-Trujano, N Alvarado-Vázquez, F J López-Muñoz
Emerging evidence proposes a link between immune changes and pain, which is consistent with the inflammation theory and the increased incidence of neurodegenerative diseases. Flavonoids have long been used because of their anti-inflammatory potential activity and they are considered a promising alternative to alleviate neuropathic pain. The aim of this study was to investigate the antihyperalgesic effect of hesperidin and the presence of pro-inflammatory cytokines evaluated at peripheral and central levels in the chronic constriction injury as model of neuropathic pain in rats...
March 6, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28263888/combined-venomics-antivenomics-and-venom-gland-transcriptome-analysis-of-the-monocoled-cobra-naja-kaouthia-from-china
#19
Ning Xu, Hong-Yan Zhao, Yin Yin, Shan-Shan Shen, Lin-Lin Shan, Chuan-Xi Chen, Yan-Xia Zhang, Jian-Fang Gao, Xiang Ji
We conducted an omics-analysis of the venom of Naja kaouthia from China. Proteomics analysis revealed six protein families [three-finger toxins (3-FTx), phospholipase A2 (PLA2), nerve growth factor, snake venom metalloproteinase (SVMP), cysteine-rich secretory protein and ohanin], and venom-gland transcriptomics analysis revealed 28 protein families from 79 unigenes. 3-FTx (56.5% in proteome/82.0% in transcriptome) and PLA2 (26.9%/13.6%) were identified as the most abundant families in venom proteome and venom-gland transcriptome...
March 3, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28263445/sustained-release-of-collagen-vi-potentiates-sciatic-nerve-regeneration-by-modulating-macrophage-phenotype
#20
Dan Lv, Lijuan Zhou, Xianyu Zheng, Yongcheng Hu
Although the peripheral nervous system has an intrinsic ability for repair and regeneration after injury, bridging long peripheral nerve defects remains a challenge. Functional nerve regeneration depends on interactions among axons, Schwann cells, fibroblasts and immune cells. Macrophages, as immune cells recruited early in this process, show polarization toward phenotypes that are detrimental or beneficial to tissue remodeling depending on the microenvironment of the scaffolds. In this study, we investigated the effects of macrophage phenotypes modulated by collagen VI on axonal regeneration and functional recovery by bridging a 15 mm long sciatic nerve defect in rats...
March 6, 2017: European Journal of Neuroscience
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