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https://www.readbyqxmd.com/read/28936761/biomarkers-for-parkinson-s-disease-recent-advancement
#1
REVIEW
Sharvari Lotankar, Kedar S Prabhavalkar, Lokesh K Bhatt
As a multi-factorial degenerative disease, Parkinson's disease (PD) leads to tremor, gait rigidity, and hypokinesia, thus hampering normal living. As this disease is usually detected in the later stages when neurons have degenerated completely, cure is on hold, ultimately leading to death due to the lack of early diagnostic techniques. Thus, biomarkers are required to detect the disease in the early stages when prevention is possible. Various biomarkers providing early diagnosis of the disease include those of imaging, cerebrospinal fluid, oxidative stress, neuroprotection, and inflammation...
September 21, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28936074/syndromes-of-rapidly-progressive-cognitive-decline-our-experience
#2
Sadanandavalli Retnaswami Chandra, Lakshminarayanapuram Gopal Viswanathan, Anupama Ramakanth Pai, Rahul Wahatule, Suvarna Alladi
BACKGROUND: Dementias are fairly slowly progressive degenerative diseases of brain for which treatment options are very less and carry a lot of burden on family and society. A small percentage of them are rapidly progressive and mostly carry a different course outcome. However, there are no definite criteria other than the time line for these patients. AIMS: The aim of this was to identify and categorize the causes and course of rapidly progressive dementias seen in our center...
August 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28935570/molecular-alterations-in-a-mouse-cardiac-model-of-friedreich-s-ataxia-an-impaired-nrf2-response-mediated-via-up-regulation-of-keap1-and-activation-of-the-gsk3%C3%AE-axis
#3
Amy Anzovino, Shannon Chiang, Bronwyn E Brown, Clare L Hawkins, Des R Richardson, Michael L-H Huang
Nuclear factor-erythroid 2-related factor-2 (Nrf2) is a master regulator of the anti-oxidant response. However, studies in models of Friedreich's ataxia (FA), a neuro- and cardio-degenerative disease associated with oxidative stress, reported decreased Nrf2 expression due to unknown mechanisms. Using a mouse conditional frataxin knockout (KO) model in the heart and skeletal muscle, we examined the Nrf2 pathway in these tissues. Frataxin KO results in fatal cardiomyopathy, while skeletal muscle was asymptomatic...
September 18, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28934732/long-noncoding-rna-cir-promotes-chondrocyte-extracellular-matrix-degradation-in-osteoarthritis-by-acting-as-a-sponge-for-mir-27b
#4
Yu-Fei Li, Shu-Hua Li, Yong Liu, Ya-Tong Luo
BACKGROUND/AIMS: Osteoarthritis (OA) is a degenerative joint disease characterized by articular cartilage degradation. The degradation of the extracellular matrix (ECM) of chondrocyte is closely associated with the destruction of joints in OA patients. lncRNAs are non-coding segments of RNA that possess important regulatory functions at the cellular level and in a variety of pathophysiological processes. The present study was conducted to investigate whether lncRNA-CIR regulated the expression of MMP13 as a sponge of miR-27 in OA...
September 21, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28934632/in-vivo-biomechanical-behavior-of-the-trapeziometacarpal-joint-in-healthy-and-osteoarthritic-subjects
#5
Priscilla D'Agostino, Benjamin Dourthe, Faes Kerkhof, G Harry Van Lenthe, Filip Stockmans, Evie E Vereecke
BACKGROUND: The contact biomechanics of the trapeziometacarpal joint have been investigated in several studies. However, these led to conflicting results and were mostly performed in vitro. The purpose of this study was to provide further insight on the contact biomechanics of the trapeziometacarpal joint by in vivo assessment of healthy and osteoarthritic subjects. METHODS: The hands of 16 healthy women and 6 women with trapeziometacarpal osteoarthritis were scanned in positions of maximal thumb extension, flexion, abduction and adduction during three isometric tasks (lateral key pinch, power grasp and jar twist) and in thumb rest posture (relaxed neutral)...
September 12, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28934248/vps35-deficiency-impairs-slc4a11-trafficking-and-promotes-corneal-dystrophy
#6
Wei Liu, Fu-Lei Tang, Sen Lin, Kai Zhao, Lin Mei, Jian Ye, Wen-Cheng Xiong
Vps35 (vacuolar protein sorting 35) is a major component of retromer that selectively promotes endosome-to-Golgi retrieval of transmembrane proteins. Dysfunction of retromer is a risk factor for the pathogenesis of Parkinson's disease (PD) and Alzheimer's disease (AD). However, Vps35/retromer's function in the eye or the contribution of Vps35-deficiency to eye degenerative disorders remains to be explored. Here we provide evidence for a critical role of Vps35 in mouse corneal dystrophy. Vps35 is expressed in mouse and human cornea...
2017: PloS One
https://www.readbyqxmd.com/read/28933753/recent-advances-in-plant-phenolics
#7
EDITORIAL
Daniel A Jacobo-Velázquez, Luis Cisneros-Zevallos
The scientific interest in plant phenolics as chemopreventive and therapeutic agents against chronic and degenerative diseases has been increasing since the late 1990s, when the French paradox was associated with the high intake of phenolics present in red wine [1]. [...].
July 26, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28933330/-short-term-results-of-surgical-treatment-of-patients-with-hallux-rigidus
#8
M Dygrýnová, M Uvízl, J Gallo
PURPOSE OF THE STUDY Hallux rigidus is common and degenerative arthritis of the first metatarsophalangeal joint. The aim of this study was to assess the results of cheilectomy and total joint replacement (TJR) in patients with hallux rigidus. Minimum duration of followup was 18 months. MATERIAL AND METHODS The study included fifty-nine patients who underwent surgery at our Department due to hallux rigidus between January 2013 and December 2014. Thirty-seven patients underwent cheilectomy and twenty-two patients had total joint arthroplasty using METIS®...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28933290/nutraceuticals-and-repurposed-drugs-of-phytochemical-origin-in-prevention-and-interception-of-chronic-degenerative-disease-and-cancer
#9
Adriana Albini, Barbara Bassani, Denisa Baci, Katiuscia Dallaglio, Matteo Gallazzi, Paola Corradino, Antonino Bruno, Douglas M Noonan
Chronic, degenerative diseases are often characterized by inflammation and aberrant angiogenesis. For many of these pathologies, including rheumatoid arthritis, cardiovascular and autoimmune diseases, cancer, diabetes, and obesity, current therapies have limited efficacy, thus the validation of novel (chemo)preventive and interceptive approaches, of new or repurposed agents, alone or in combination with registered drugs, are urgently required. Phytochemicals (triterpenoids, flavonoids, retinoids) and their derivatives, non-steroidal anti-inflammatory drugs (aspirin) as well as biguanides (metformin and phenformin) originally developed from phytochemical backbones, are multi-target agents showing anti-angiogenic and anti-anti-inflammatory proprieties...
September 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28931211/mir-337-3p-promotes-chondrocytes-proliferation-and-inhibits-apoptosis-by-regulating-pten-akt-axis-in-osteoarthritis
#10
Zhihui Huang, Naidong Zhang, Wenming Ma, Xiaoyu Dai, Jinbo Liu
BACKGROUND: Osteoarthritis (OA) is a degenerative disease of articular cartilage and its main pathological feature is cartilage destruction, but its specific pathogenesis is still debatable. The aim of this study was to explore the role of miR-337-3p in OA pathogenesis. METHODS: The expression of miR-337-3p and PTEN in osteoarthritic cartilage tissues was detected using quantitative real time PCR and western blot, respectively. The regulation of miR-337-3p on PTEN was examined by luciferase reporter gene assays...
September 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28930173/polyphenols-from-root-tubercles-and-grains-cropped-in-brazil-chemical-and-nutritional-characterization-and-their-effects-on-human-health-and-diseases
#11
REVIEW
Diego Dos Santos Baião, Cyntia Silva de Freitas, Laidson Paes Gomes, Davi da Silva, Anna Carolina N T F Correa, Patricia Ribeiro Pereira, Eduardo Mere Del Aguila, Vania Margaret Flosi Paschoalin
Throughout evolution, plants have developed the ability to produce secondary phenolic metabolites, which are important for their interactions with the environment, reproductive strategies and defense mechanisms. These (poly)phenolic compounds are a heterogeneous group of natural antioxidants found in vegetables, cereals and leguminous that exert beneficial and protective actions on human health, playing roles such as enzymatic reaction inhibitors and cofactors, toxic chemicals scavengers and biochemical reaction substrates, increasing the absorption of essential nutrients and selectively inhibiting deleterious intestinal bacteria...
September 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28929374/inhibition-of-gsk-3%C3%AE-activation-protects-sd-rat-retina-against-n-methyl-n-nitrosourea-induced-degeneration-by-modulating-the-wnt-%C3%AE-catenin-signaling-pathway
#12
Baoying Wang, Chenghu Hu, Xiaobei Yang, Fangying Du, Yan Feng, Hongbo Li, Chunhui Zhu, Xiaorui Yu
Retinal degenerative diseases are characterized by photoreceptor cell loss. Photoreceptor cell loss leading to retinal degeneration can be induced by N-methyl-N-nitrosourea (MNU), which was widely used to mimic the pathology. However, the mechanism by which MNU induces photoreceptor cell loss is still largely unknown. The purpose of the present study was to investigate whether phosphorylation of glycogen synthase kinase-3β (p-GSK-3β) is a potent mediator of MNU-induced retinal degeneration and how p-GSK-3β affects the process...
September 19, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28929036/factors-affecting-length-of-stay-following-elective-anterior-and-posterior-cervical-spine-surgery
#13
Frank J Yuk, Akbar Y Maniya, Jonathan J Rasouli, Alexa M Dessy, Patrick J McCormick, Tanvir F Choudhri
Background Disease of the cervical spine is widely prevalent, most commonly secondary to degenerative disc changes and spondylosis. Objective The goal of the paper was to identify a possible discrepancy regarding the length of stay (LOS) between the anterior and posterior approaches to elective cervical spine surgery and identify contributing factors. Methods A retrospective study was performed on 587 patients (341 anterior, 246 posterior) that underwent elective cervical spinal surgery between October 2001 and March 2014...
July 10, 2017: Curēus
https://www.readbyqxmd.com/read/28928740/microbiome-derived-lipopolysaccharide-enriched-in-the-perinuclear-region-of-alzheimer-s-disease-brain
#14
Yuhai Zhao, Lin Cong, Vivian Jaber, Walter J Lukiw
Abundant clinical, epidemiological, imaging, genetic, molecular, and pathophysiological data together indicate that there occur an unusual inflammatory reaction and a disruption of the innate-immune signaling system in Alzheimer's disease (AD) brain. Despite many years of intense study, the origin and molecular mechanics of these AD-relevant pathogenic signals are still not well understood. Here, we provide evidence that an intensely pro-inflammatory bacterial lipopolysaccharide (LPS), part of a complex mixture of pro-inflammatory neurotoxins arising from abundant Gram-negative bacilli of the human gastrointestinal (GI) tract, are abundant in AD-affected brain neocortex and hippocampus...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28928659/brain-pharmacokinetics-and-the-pharmacological-effects-on-striatal-neurotransmitter-levels-of-pueraria-lobata-isoflavonoids-in-rat
#15
Bingxin Xiao, Zengxian Sun, Fangrui Cao, Lisha Wang, Yonghong Liao, Xinmin Liu, Ruile Pan, Qi Chang
Isoflavonoids are putatively active components of Pueraria lobata and has been demonstrated prominent neuro-protection effect against cerebrovascular disorders, hypertension or Parkinson's disease (PD). However, the molecular basis for the beneficial effect of Pueraria lobata on nervous systems has not been well revealed. The present study aims to assess striatum exposure to main active isoflavonoids and changes of striatal extracellular neurotransmitters levels in rat brain after intravenous administration of Pueraria lobata isoflavonoids extracts (PLF), to further elucidate its' substantial bases for neuro activities...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28928631/glaucoma-biological-trabecular-and-neuroretinal-pathology-with-perspectives-of-therapy-innovation-and-preventive-diagnosis
#16
REVIEW
Raffaele Nuzzi, Federico Tridico
Glaucoma is a common degenerative disease affecting retinal ganglion cells (RGC) and optic nerve axons, with progressive and chronic course. It is one of the most important reasons of social blindness in industrialized countries. Glaucoma can lead to the development of irreversible visual field loss, if not treated. Diagnosis may be difficult due to lack of symptoms in early stages of disease. In many cases, when patients arrive at clinical evaluation, a severe neuronal damage may have already occurred. In recent years, newer perspective in glaucoma treatment have emerged...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28927431/role-of-the-sigma-1-receptor-chaperone-in-rod-and-cone-photoreceptor-degenerations-in-a-mouse-model-of-retinitis-pigmentosa
#17
Huan Yang, Yingmei Fu, Xinying Liu, Pawan K Shahi, Timur A Mavlyutov, Jun Li, Annie Yao, Steven Z-W Guo, Bikash R Pattnaik, Lian-Wang Guo
BACKGROUND: Retinitis pigmentosa (RP) is the most common inherited retinal degenerative disease yet with no effective treatment available. The sigma-1 receptor (S1R), a ligand-regulated chaperone, emerges as a potential retina-protective therapeutic target. In particular, pharmacological activation of S1R was recently shown to rescue cones in the rd10 mouse, a rod Pde6b mutant that recapitulates the RP pathology of autonomous rod degeneration followed by secondary death of cones. The mechanisms underlying the S1R protection for cones are not understood in detail...
September 19, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/28927213/ten-step-minimally-invasive-spine-lumbar-decompression-and-dural-repair-through-tubular-retractors
#18
Mohamed Abdelatif Boukebir, Connor David Berlin, Rodrigo Navarro-Ramirez, Tim Heiland, Karsten Schöller, Cameron Rawanduzy, Sertaç Kirnaz, Ajit Jada, Roger Härtl
BACKGROUND: Minimally invasive spine (MIS) surgery utilizing tubular retractors has become an increasingly popular approach for decompression in the lumbar spine. However, a better understanding of appropriate indications, efficacious surgical techniques, limitations, and complication management is required to effectively teach the procedure and to facilitate the learning curve. OBJECTIVE: To describe our experience and recommendations regarding tubular surgery for lumbar disc herniations, foraminal compression with unilateral radiculopathy, lumbar spinal stenosis, synovial cysts, and dural repair...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28926876/-advances-in-the-research-of-characteristics-and-treatment-of-burns-in-the-elderly
#19
R Liu, Z Y Li
With the development of society and the improvement of medical level, the average life span of human has been increasing year by year. The proportion of elderly burn patients is also increasing yearly, which has become a social problem that can not be ignored. Because of physiological characteristics, such as decreased function of heart, lung, and kidney, degenerative changes of neural system, reduced gastrointestinal function and immunological function, and mostly accompanied by primary diseases of diabetes and cardiovascular diseases, elderly burn patients suffer from high shock rate and mortality, and their wounds are not easy to heal...
September 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28926755/neochordoplasty-versus-leaflet-resection-for-ruptured-mitral-chordae-treatment-virtual-mitral-valve-repair
#20
Ahnryul Choi, David D McPherson, Hyunggun Kim
Degenerative mitral valve (MV) disease involving mitral prolapse is one of the most prevalent MV pathologies. Quadrangular leaflet resection and neochordoplasty demonstrate excellent clinical outcomes for the treatment of posterior leaflet prolapse. We evaluated the functional and biomechanical characteristics of a virtual pathologic MV model suffering from chordal rupture, performed virtual neochordoplasty and quadrangular leaflet resection, and compared the two post-repair MV functions. The pre-repair MV demonstrated severe posterior leaflet prolapse due to the ruptured P2 chordae and excessive stress concentration...
September 13, 2017: Computers in Biology and Medicine
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