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https://www.readbyqxmd.com/read/29055222/the-cerebrospinal-fluid-values-of-advanced-oxidation-protein-products-and-total-thiol-content-in-patients-with-amyotrophic-lateral-sclerosis
#1
Gordana Djordjevic, Srdjan Ljubisavljevic, Srdjan Sretenovic, Gordana Kocic, Ivana Stojanovic, Svetlana Stojanovic
OBJECTIVES: Amyotrophic lateral sclerosis (ALS) is recognized as a progressive neurodegenerative disorder of unknown origin. Oxidative stress (OS) is considered as one of the most challenging hypothesis in the disease pathogenesis. The aim of this study was to contribute to the understanding of what extent there is involvement of OS in ALS. PATIENTS AND METHODS: We assessed Advanced Oxidation Protein Products (AOPP) and total thiol (-SH) groups in cerebrospinal fluid (CSF) of 24 ALS patients (13 of them presented with spinal form while 11 patients had bulbar form) and 20 controls (CG)...
October 18, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29055020/subtype-specific-cancer-associated-fibroblasts-contribute-to-the-pathogenesis-of-uterine-leiomyoma
#2
Xin Wu, Vanida Ann Serna, Justin Thomas, Wenan Qiang, Michael L Blumenfeld, Takeshi Kurita
Recent genomic studies have identified subtypes of uterine leiomyoma (LM) with distinctive genetic alterations. Here we report the elucidation of the biological characteristics of the two most prevalent LM subtypes, MED12 mutant (MED12-LM) and HMGA2-overexpressing (HMGA2-LM) LM. Since each tumor carries only one genetic alteration, both subtypes are considered to be monoclonal. Approximately 90% of cells in HMGA2-LM were smooth muscle cells (SMC) with HMGA2 overexpression. In contrast, MED12-LM consisted of similar numbers of SMC and non-SMC, which were mostly tumor-associated fibroblasts (TAF)...
October 20, 2017: Cancer Research
https://www.readbyqxmd.com/read/29055005/induction-of-systemic-autoimmunity-by-a-xenobiotic-requires-endosomal-tlr-trafficking-and-signaling-from-the-late-endosome-and-endolysosome-but-not-type-i-ifn
#3
K Michael Pollard, Gabriela M Escalante, Hua Huang, Katarina M Haraldsson, Per Hultman, Joseph M Christy, Rahul D Pawar, Jessica M Mayeux, Rosana Gonzalez-Quintial, Roberto Baccala, Bruce Beutler, Argyrios N Theofilopoulos, Dwight H Kono
Type I IFN and nucleic acid-sensing TLRs are both strongly implicated in the pathogenesis of lupus, with most patients expressing IFN-induced genes in peripheral blood cells and with TLRs promoting type I IFNs and autoreactive B cells. About a third of systemic lupus erythematosus patients, however, lack the IFN signature, suggesting the possibility of type I IFN-independent mechanisms. In this study, we examined the role of type I IFN and TLR trafficking and signaling in xenobiotic systemic mercury-induced autoimmunity (HgIA)...
October 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29054963/interleukin-12-mediated-expression-of-matrix-metalloproteinases-in-human-periodontal-ligament-fibroblasts-involves-in-nf-kappab-activation
#4
Li Miao, Shujun Zhan, Jiyan Liu
Interleukin (IL-12) is a pro-inflammatory cytokine, and its increased level correlates with the severity of periodontitis. However, its role in the pathogenesis of tooth periapical lesions is controversial and has not been completely clarified. This study aimed to investigate whether IL-12 affects the expression of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) in human periodontal ligament fibroblasts (hPDLFs). After treatment with IL-12 for different time, Real-time PCR and Western blotting were used to determine the mRNA and protein levels of MMP-1, MMP-2, MMP-3, MMP-9, MMP-13, TIMP-1 and TIMP-2, respectively...
October 20, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29054920/csf-%C3%AE-amyloid-and-white-matter-damage-a-new-perspective-on-alzheimer-s-disease
#5
Anna M Pietroboni, Marta Scarioni, Tiziana Carandini, Paola Basilico, Marcello Cadioli, Giovanni Giulietti, Andrea Arighi, Michela Caprioli, Laura Serra, Clara Sina, Chiara Fenoglio, Laura Ghezzi, Giorgio G Fumagalli, Milena A De Riz, Alberto Calvi, Fabio Triulzi, Marco Bozzali, Elio Scarpini, Daniela Galimberti
OBJECTIVE: To assess the connection between amyloid pathology and white matter (WM) macrostructural and microstructural damage in demented patients compared with controls. METHODS: Eighty-five participants were recruited: 65 with newly diagnosed Alzheimer's disease (AD), non-AD dementia or mild cognitive impairment and 20 age-matched and sex-matched healthy controls. β-amyloid1-42 (Aβ) levels were determined in cerebrospinal fluid (CSF) samples from all patients and five controls...
October 20, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29054882/parkinson-s-disease-associated-lrrk2-hyperactive-kinase-mutant-disrupts-synaptic-vesicle-trafficking-in-ventral-midbrain-neurons
#6
Ping-Yue Pan, Xianting Li, Jing Wang, James Powell, Qian Wang, Yuanxi Zhang, Zhaoyu Chen, Bridget Wicinski, Patrick Hof, Timothy A Ryan, Zhenyu Yue
Parkinson's disease (PD) is characterized pathologically by the selective loss of substantia nigra (SN) dopaminergic (DAergic) neurons. Recent evidence has suggested a role of LRRK2, linked to the most frequent familial PD, in regulating synaptic vesicle (SV) trafficking. However, the mechanism whereby LRRK2 mutants contribute to nigral vulnerability remains unclear. Here we show that the most common PD mutation LRRK2 G2019S impairs SV endocytosis in ventral midbrain (MB) neurons including DA neurons, and the slowed endocytosis can be rescued by inhibition of LRRK2 kinase activity...
October 20, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29054766/rethinking-genotype-phenotype-correlations-in-papillorenal-syndrome-a-case-report-on-an-unusual-congenital-camptodactyly-and-skeletal-deformity-with-a-heterogeneous-pax2-mutation-of-hexanucleotide-duplication
#7
Jiewei Liu, Ping Wang, Juan Huang, Zihua Yu
Papillorenal syndrome (PRS), an autosomal dominant inherited condition, is clinically featured by renal hypoplasia and optic nerve dysplasia. Based on current knowledge of genotype-phenotype correlations in PRS, mutations in the Paired box 2 (PAX2) gene have been recognized as a critical pathogenesis of typical renal and optic disease manifestations. However, little information is currently available on the skeletal abnormalities of PRS and the potential contribution of PAX2 mutations. Here, we present a case of a 10-year-old female PRS patient with the typical features of chronic renal failure and severe myopia, but was unexpectedly discovered camptodactyly of her left middle finger which affects the proximal interphalangeal joint...
October 17, 2017: Gene
https://www.readbyqxmd.com/read/29054724/proinflammatory-cytokine-interferon-%C3%AE-increases-the-expression-of-bancr-a-long-non-coding-rna-in-retinal-pigment-epithelial-cells
#8
R Krishnan Kutty, William Samuel, Todd Duncan, Olga Postnikova, Cynthia Jaworski, Chandrasekharam N Nagineni, T Michael Redmond
The inflammatory response may contribute to retinal pigment epithelial (RPE) dysfunction associated with the pathogenesis of age-related macular degeneration (AMD). We investigated whether the inflammatory response affects the expression of long coding RNAs (lncRNAs) in human RPE-derived ARPE-19 cells. This class of regulatory RNA molecules recently came to prominence due to their involvement in many pathophysiological processes. A proinflammatory cytokine mixture consisting of IFN-γ, IL-1β and TNF-α altered the expression several lncRNAs including BANCR in these cells...
October 17, 2017: Cytokine
https://www.readbyqxmd.com/read/29054606/semaphorin-4d-from-cd15-granulocytes-via-adam10-induced-cleavage-contributes-to-antibody-production-in-bullous-pemphigoid
#9
Shengxian Shen, Yao Ke, Erle Dang, Hui Fang, Yuqian Chang, Jieyu Zhang, Zhenlai Zhu, Shuai Shao, Pei Qiao, Tongmei Zhang, Hongjiang Qiao, Gang Wang
Autoreactive B cells activation and antibody production are critical events for the development of bullous pemphigoid (BP). However, the mechanism that is involved in the modulation of B cell activation and autoantibody generation has not been fully understood. Semaphorin 4D (Sema4D/CD100) plays important roles in immune regulation related to B cell, but its implication in BP remains obscure. The aim of our study was to characterize Sema4D and the underlying mechanism contributing to the autoimmune features of BP...
October 17, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29054587/extrapyramidal-signs-in-neurosarcoidosis-versus-multiple-sclerosis-is-tnf-alpha-the-link
#10
Tali Drori, Gili Givaty, Joab Chapman, Merav Lidar, Pnina Langevitz, Yehuda Shoenfeld, Oren S Cohen
Specific inflammatory pathways and specifically Tumor Necrosis Factor alpha (TNF-α) have been associated with the neurodegeneration in Parkinson's disease (PD). TNFα is also known to play an important role in the pathogenesis of sarcoidosis and TNF blockers can ameliorate the disease. In contrast, multiple sclerosis (MS) is clearly exacerbated by anti- TNF-α medications. We have therefore hypothesized that Parkinson-like disease would be more common in neurosarcoidosis (NS) compared to MS. The aim of this case-control study was therefore to assess the frequency of extrapyramidal signs in patients with NS compared to MS patients...
October 16, 2017: Immunobiology
https://www.readbyqxmd.com/read/29054504/proteomics-in-plasma-of-ovariectomized-rats-and-those-exposed-to-estradiol-valerate
#11
Hai Jiang, Wenpei Bai, Wenjuan Wang, Ke Wang, Jing Jia, Jing Zhang, He Diao, Lihua Qin
The menopausal period, an inevitable physiological process for women, is frequently associated with physiological and psychological dysfunction attributable to substantial fluctuation and gradual decrease in female hormones induced by ovarian failure, leading to corresponding symptoms and diseases that impact multiple systems in the body to varying degrees. As prior studies have focused primarily on menopausal syndrome-related pathophysiological changes and hormone replacement therapy effects, here we approached menopausal disease incidence risk and pathogenesis through systemic plasma proteomics analysis...
October 17, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29054469/the-acidity-of-early-pregnancy-diet-and-risk-of-gestational-diabetes-mellitus
#12
Sahar Saraf-Bank, Hotav Tehrani, Fahimeh Haghighatdoost, Seyedeh Parisa Moosavian, Leila Azadbakht
BACKGROUNDS & AIMS: Recently, an increasing interest has been addressed to the acid-base imbalance in the pathogenesis of diabetes while we are not aware of any study among patients affected by gestational diabetes mellitus (GDM). Therefore, the purpose of present study was to reveal the potential relation between dietary acid load (DAL) and glycemic indices, lipid profiles and GDM odds ratio among Iranian pregnant women with GDM. METHODS: This case-control study (hospital-based setting) was performed in singleton fetus pregnant women; healthy (n = 263) and GDM (n = 200), aged 22-44 years, and between weeks 5-28 of pregnancy...
October 3, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29054432/expression-pattern-of-eya4-in-the-common-marmoset-callithrix-jacchus-cochlea
#13
Saeko Matsuzaki, Makoto Hosoya, Hideyuki Okano, Masato Fujioka, Kaoru Ogawa
The eyes absent (EYA)-like genes are essential for the formation of sensory organs among fly (Drosophila melanogaster) and mammals. EYA4, one of the vertebrate genes of Eya family, is reported to be causative for late-onset mid-frequency sensorineural hearing loss in humans, while Eya4-deficient mice exhibited congenital profound deafness and otitis media with effusion due to the eustachian tube dysmorphology. Because of the species difference in the phenotype, the pathophysiology of EYA4 in the human cochlea has yet to be elucidated...
October 17, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29054398/association-of-tnf-alpha-gene-polymorphisms-and-susceptibility-to-hepatitis-b-virus-infection-in-egyptians
#14
Roba M Talaat, Mohamed S Abdelkhalek, Eman A El-Maadawy, Wael S Abdel-Mageed, Soha Z El-Shenawy, Mohamed A Osman
Tumor necrosis factor alpha (TNF-α) is one of the important cytokine in generating an immune response against hepatitis B virus (HBV). Genetic polymorphisms might influence gene transcription, leading to disturbance in cytokine production. We hypothesized that single nucleotide polymorphism (SNPs) in TNF-α gene could affect the pathogenesis of HBV. To test this hypothesis, we investigated the role of TNF-α polymorphism [-863C/A (rs1800630), -308G/A (rs1800629), -376G/A (rs1800750), -857C/T (rs1799724) and +489G/A (rs1800610)] in the susceptibility to chronic hepatitis B (CHB) infection...
October 17, 2017: Human Immunology
https://www.readbyqxmd.com/read/29054367/monoamine-oxidase-b-inhibitor-protects-degenerating-spinal-neurons-enhances-nerve-regeneration-and-functional-recovery-in-sciatic-nerve-crush-injury-model
#15
Al-Shimali M Hussain, Waleed M Renno, Hanaa L Sadek, Noura M Kayali, Aseel Al Salem, Muddanna S Rao, Khalid M Khan
Monoamine oxidase-B (MAOB), a flavin adenine dinucleotide (FAD), is an enzyme which catalyzes the oxidation of amines. MAOB is proposed to play a major role in the pathogenesis of neurodegeneration through the production of reactive oxygen species (ROS) and neurotoxins. The present study was designed to outline the effects of the MAOB inhibitor (MAOB-I) on neuroprotection of spinal neurons, regeneration of sciatic nerve fibers, and recovery of sensory-motor functions in the sciatic nerve crush injury model...
October 17, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29054363/role-of-zc3h12a-in-enhanced-il-6-production-by-newborn-mononuclear-cells-in-response-to-lipopolysaccharide
#16
Xia-Fang Chen, Jing Wu, Yi-Dan Zhang, Chen-Xing Zhang, Xu-Ting Chen, Jian-Hua Sun, Tong-Xin Chen
BACKGROUND: The uncontrolled inflammatory response following infection is closely related to the morbidity and mortality of neonates. Interleukin 6 (IL-6) plays an important role in the pathogenesis and prognosis of this process. To better elucidate the secretion of IL-6 following infection in neonates, we investigated the IL-6 level and mechanism of IL-6/TLR4 signaling pathways. METHODS: We compared the IL-6, procalcitonin (PCT), and CRP levels between septic neonates and toddlers...
September 21, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/29054140/acetaminophen-toxicity-novel-insights-into-mechanisms-and-future-perspectives
#17
Anup Ramachandran, Hartmut Jaeschke
Acetaminophen (APAP) overdose is the most common cause of acute liver failure in the United States and decades of intense study of its pathogenesis resulted in development of the antidote Nacetylcysteine, which facilitates scavenging of the reactive metabolite and is the only treatment in clinical use. However, the narrow therapeutic window of this intervention necessitates a better understanding of the intricacies of APAP-induced liver injury for development of additional therapeutic approaches which can benefit late presenting patients...
October 20, 2017: Gene Expression
https://www.readbyqxmd.com/read/29054095/ginkgolide-b-and-bilobalide-ameliorate-neural-cell-apoptosis-in-%C3%AE-synuclein-aggregates
#18
Jun Hua, Nuo Yin, Beibei Yang, Ji Zhang, Jianhua Ding, Yi Fan, Gang Hu
The accumulation of aggregated forms of the α-Synuclein (α-Syn) is associated with the pathogenesis of Parkinson's disease (PD), a chronic progressive neurodegenerative disorder. Extensive evidences have shown the promising effects of Ginkgo biloba consumption on motor activity after PD. However, the mechanisms underline the α-Syn-induced cell damage and whether ginkgolides exert neuroprotection against this injury are unclear. Here we showed that aggregated recombinant human α-Syn, but not α-Syn monomers, triggered cell injury in cultured human neuroblastoma cell line SH-SY5Y in an apoptosis way by using flow cytometry and western blot assay...
October 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29053885/cortical-superficial-siderosis-and-acute-convexity-subarachnoid-hemorrhage-in-cerebral-amyloid-angiopathy
#19
Nicolas Raposo, Lionel Calviere, Vanessa Cazzola, Mélanie Planton, Sofia Patsoura, Matthieu Wargny, Jean François Albucher, Agnès Sommet, Jean Marc Olivot, François Chollet, Jérémie Pariente, Fabrice Bonneville, Alain Viguier
BACKGROUND: Acute convexity subarachnoid hemorrhage (cSAH) and cortical superficial siderosis (cSS) are neuroimaging markers of cerebral amyloid angiopathy (CAA) that may arise through similar mechanisms. We sought to compare the prevalence of cSS between patients with CAA presenting with acute cSAH versus lobar intracerebral hemorrhage (ICH), and to explore the physiopathology of cSS by examining neuroimaging associations. METHODS: We retrospectively analyzed data from 116 consecutive patients with probable CAA (mean age, 77...
October 20, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29053830/friedreich-s-ataxia-clinical-features-pathogenesis-and-management
#20
A Cook, P Giunti
Introduction: Friedreich's ataxia is the most common inherited ataxia. Sources of data: Literature search using PubMed with keywords Friedreich's ataxia together with published papers known to the authors. Areas of agreement: The last decade has seen important advances in our understanding of the pathogenesis of disease. In particular, the genetic and epigenetic mechanisms underlying the disease now offer promising novel therapeutic targets...
October 19, 2017: British Medical Bulletin
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