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https://www.readbyqxmd.com/read/28922560/betacellulin-regulates-the-proliferation-and-differentiation-of-retinal-progenitor-cells-in-vitro
#1
Dandan Zhang, Bingqiao Shen, Yi Zhang, Ni Ni, Yuyao Wang, Fan Xianqun, Hao Sun, Ping Gu
Retinal progenitor cells (RPCs) hold great potential for the treatment of retinal degenerative diseases. However, their proliferation capacity and differentiation potential towards specific retinal neurons are limited, which limit their future clinical applications. Thus, it is important to improve the RPCs' ability to proliferate and differentiate. Currently, epidermal growth factor (EGF) is commonly used to stimulate RPC growth in vitro. In this study, we find that betacellulin (BTC), a member of the EGF family, plays important roles in the proliferation and differentiation of RPCs...
September 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28921725/coenzyme-q10-prevents-the-interleukin-1-beta-induced-inflammatory-response-via-inhibition-of-mapk-signaling-pathways-in-rat-articular-chondrocytes
#2
Xing Li, Yuanqing Guo, Shuai Huang, Minhui He, Qiaoli Liu, Weizhi Chen, Minghao Liu, Dongliang Xu, Peiheng He
Preclinical Research Osteoarthritis (OA) is a widely prevalent degenerative joint disease that severely impairs the health of the elderly population resulting in a heavy economic burden worldwide. Coenzyme Q10 (CoQ10) has shown anti-inflammatory effects in some diseases. The present study aimed to investigate if CoQ10 would suppress catabolic responses of interleukin (IL)-1β-induced chondrocytes. Rat chondrocytes were cultured and pretreated with CoQ10, and then stimulated with or without IL-1β (10 ng/ml)...
September 17, 2017: Drug Development Research
https://www.readbyqxmd.com/read/28921035/-midportion-achilles-tendinopathy
#3
REVIEW
J Weber, T Buchhorn
Although the incidence of midportion Achilles tendinopathy is under 1% in the general population, it is quite a common disease in runners that is characterized by the symptom triad of pain, swelling and impaired physical performance. Pain and swelling are located in the area 2 to 7 cm proximal the tendon insertion onto the calcaneus.Diagnosis is made by adequate clinical symptoms and corresponding findings in sonography and/or magnetic resonance imaging scans. Histopathologically, mostly degenerative changes in the tendon structure are found, sometimes accompanied by intra- and paratendinous inflammation...
September 18, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28920791/femoral-head-resection-in-two-livingstone-s-fruit-bats-pteropus-livingstonii
#4
Alberto Rodriguez Barbon, Peter Rushton-Taylor, Edward Bell, Andrew Routh
Two Livingstone's fruit bats (Pteropus livingstonii) presented with a unilateral partial paresis of the hind limbs. Radiographs revealed luxation of the coxofemoral joint and degenerative joint disease in the right coxofemoral joint in one case. The second case presented with recurrent luxation of the coxofemoral joint with osteoarthrosis of the femoral head. Clinical findings in both cases led to a decision to perform a femoral head resection. The performed surgery led to the recovery of normal function of the limb without any complications in both cases...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28918510/acquired-hepatocerebral-degeneration-ahd-a-peculiar-neurological-impairment-in-advanced-chronic-liver-disease
#5
A Pigoni, F Iuculano, C Saetti, L Airaghi, L Burdick, S Spreafico, M Curioni, R Lombardi, L Valenti, A L Fracanzani, S Fargion
We discuss the case of a rare and often unrecognized neurologic syndrome, called Acquired Hepatocerebral Degeneration (AHD), observed in patients with advanced liver disease and portosystemic shunts. The clinical manifestations can be very heterogeneous and in our case included a combination of cerebellar and extrapyramidal signs, arisen in a period of few days. Brain Magnetic Resonance Imaging (MRI) showed, in T1-weighted images, diffuse bilateral hyper intensities in basal ganglia and biemispheric brain and cerebellar cortices, resembling paramagnetic deposits...
September 16, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28918243/homeostatic-systems-biocybernetics-and-autonomic-neuroscience
#6
REVIEW
David S Goldstein, Irwin J Kopin
In this review we describe a series of major concepts introduced during the past 150years that have contributed to our current understanding about how physiological processes required for well-being and survival are regulated. One can theorize that hierarchical networks involving input-output relationships continuously orchestrate and learn adaptive patterns of observable behaviors, cognition, memory, mood, and autonomic systems. Taken together, these networks function as "good regulators" determining levels of internal variables and act as if there were homeostatic comparators ("homeostats")...
September 5, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28918116/atherosclerotic-disease-and-its-relationship-to-lumbar-degenerative-disc-disease-facet-arthritis-and-stenosis-with-computed-tomography-angiography
#7
William J Beckworth, John F Holbrook, Lisa G Foster, Laura A Ward, James R Welle
BACKGROUND: The intervertebral disc is the largest avascular structure in the body. It relies on passive diffusion from arteries at the periphery of the disc for nutrition. Prior studies have suggested a correlation between vascular disease and lumbar degenerative disc disease (DDD) but the association with facet arthritis and stenosis has not been evaluated. OBJECTIVE: To evaluate the degree of lumbar artery stenosis, aortic atherosclerosis on computed tomography angiography (CTAs) and its relationship to lumbar DDD, facet arthritis and spinal canal stenosis...
September 13, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28917938/the-evaluation-of-antioxidant-and-antifungal-properties-of-6-amino-6-deoxychitosan-in-vitro
#8
Fang Luan, Qing Li, Wenqiang Tan, Lijie Wei, Jingjing Zhang, Fang Dong, Guodong Gu, Zhanyong Guo
We synthesized 6-amino-6-deoxychitosan (NCS) through a series of reactions from chitosan (CS). The antioxidant ability of CS and NCS were investigated in vitro, including that of DPPH-radical and hydrogen peroxide, reducing power, chelating abilities and inhibition of lipid peroxidation. As expected, after the introduction of amino groups, antioxidant ability had improved significantly. Especially, scavenging effect against DPPH-radical and hydrogen peroxide of NCS were 97% and 92% at 1.6mg/mL, respectively...
September 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28915963/hepcidin-and-metallothioneins-as-molecular-base-for-sex-dependent-differences-in-clinical-course-of-experimental-autoimmune-encephalomyelitis-in-chronic-iron-overload
#9
Božena Ćurko-Cofek, Tanja Grubić Kezele, Vesna Barac-Latas
Multiple sclerosis is a chronic demyelinating disease of the central nervous system characterised by inflammatory and degenerative changes. It is considered that disease arises from the influence of environmental factors on genetically susceptible individuals. Recent researches, using magnetic resonance imaging, connected iron deposits in different brain regions with demyelinating process in multiple sclerosis patients. Although iron is an essential trace element important for many biological functions it could be harmful because iron excess can induce the production of reactive oxygen species, development of oxidative stress and lipid peroxidation which leads to demyelination...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28915567/melatonin-inhibits-sirt1-dependent-nampt-and-nfat5-signaling-in-chondrocytes-to-attenuate-osteoarthritis
#10
Jia Yi Guo, Feng Li, Yong Bing Wen, Hong Xun Cui, Ma Long Guo, Lin Zhang, Yun Fei Zhang, Yan Jin Guo, Yan Xing Guo
Osteoarthritis (OA) is a degenerative joint disease mainly characterized by cartilage degradation. Interleukin-1β (IL-1β) contributes to OA pathogenesis by enhancing oxidative stress and inflammation. Melatonin reportedly elicits potent protection against OA. However, the role of melatonin and underlying mechanism in IL-1β-stimulated chondrocytes remain largely unclear. In this study, we found that melatonin inhibited IL-1β-induced toxicity and sirtuin 1 (Sirt1) enhancement in human chondrocytes. Melatonin reduced the IL-1β-increased nicotinamide phosphoribosyltransferase (NAMPT) expression and the NAD(+) level in chondrocytes in a Sirt1-dependent manner...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915439/alpha-mangostin-suppresses-interleukin-1%C3%AE-induced-apoptosis-in-rat-chondrocytes-by-inhibiting-the-nf-%C3%AE%C2%BAb-signaling-pathway-and-delays-the-progression-of-osteoarthritis-in-a-rat-model
#11
Tianlong Pan, Rong Chen, Dengying Wu, Ningyu Cai, Xuchao Shi, Bin Li, Jun Pan
Osteoarthritis (OA) is a chronic degenerative joint disease that is characterized by progressive joint dysfunction and pain. Apoptosis and catabolism in chondrocytes play critical roles in the development of OA. Alpha-Mangostin (α-MG), one of the main components of the mangosteen, has been reported to have anti-apoptotic, anti-inflammatory and antioxidant effects. We investigated the therapeutic effects of α-MG on OA through experiments on rat chondrocytes in vitro and in a rat model of OA induced by destabilization of the medial meniscus (DMM)...
September 12, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28914525/two-distinct-polymorphic-folding-states-of-self-assembly-of-the-non-amyloid-%C3%AE-component-differ-in-the-arrangement-of-the-residues
#12
Maya Pollock-Gagolashvili, Yifat Miller
Parkinson's disease is a degenerative disorder of the central nerves system. It is characterized by presence of Lew bodies (LBs), in which the main components of the LBs are α-synuclein (AS) aggregates. The central domain of AS, known as the "non-amyloid β component" (NAC) is responsible for the aggregation properties of AS. It is proposed that AS fibrillar structure is a well-packed cross-β structure of the NAC domains, while the N- and C-termini are disordered. Therefore, the study of the self-assembly of NAC domains are crucial in order to understand the molecular mechanisms of AS aggregation...
September 15, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28913153/quantitative-analysis-of-18-f-naf-dynamic-pet-ct-cannot-differentiate-malignant-from-benign-lesions-in-multiple-myeloma
#13
Christos Sachpekidis, Jens Hillengass, Hartmut Goldschmidt, Hoda Anwar, Uwe Haberkorn, Antonia Dimitrakopoulou-Strauss
A renewed interest has been recently developed for the highly sensitive bone-seeking radiopharmaceutical (18)F-NaF. Aim of the present study is to evaluate the potential utility of quantitative analysis of (18)F-NaF dynamic PET/CT data in differentiating malignant from benign degenerative lesions in multiple myeloma (MM). 80 MM patients underwent whole-body PET/CT and dynamic PET/CT scanning of the pelvis with (18)F-NaF. PET/CT data evaluation was based on visual (qualitative) assessment, semi-quantitative (SUV) calculations, and absolute quantitative estimations after application of a 2-tissue compartment model and a non-compartmental approach leading to the extraction of fractal dimension (FD)...
2017: American Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28910266/therapeutic-effect-and-mechanism-of-action-of-abnormal-savda-munziq-in-development-of-degenerative-atherosclerotic-aortic-valve-disease
#14
Aisikaer Shabiti, Aili Aibibula, Aikeremu Tuerxun, Halmurat Wufuer
BACKGROUND The aim of this study was to investigate the therapeutic effect of abnormal Savda Munziq (ASMq) on the development of degenerative atherosclerotic aortic valve disease and its underlying mechanisms. MATERIAL AND METHODS We randomly divided 80 rabbits into 4 groups: a normal control group (group N, n=20); a high-fat diet group (group HC, n=20); a high-fat diet and Atorvastatin calcium intervention group (group AI, n=20); and a high-fat diet and ASMq intervention group (group MI, n=20). For evaluation of blood lipid profiles, blood samples were collected at week 0 and at the end of week 8...
September 14, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28910203/the-t-box-transcription-factor-tbx2-regulates-cell-proliferation-in-the-retinal-pigment-epithelium
#15
Jing Wang, Yin Liu, Zhongyuan Su, Li Pan, Fan Lu, Jia Qu, Ling Hou
PURPOSE: Vertebrate eye development and function critically depend on the regulation of proliferation of retinal pigment epithelium (RPE) cells. Hence, a thorough analysis of the molecular parameters controlling RPE cell proliferation is crucial for our understanding of the physiology of this cell type both in health and in disease. The T-box transcription factor TBX2 is an important cell cycle regulator in development and oncogenesis, but its specific role in RPE cell proliferation is far from clear...
September 14, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28906054/neuropathological-comorbidity-associated-with-argyrophilic-grain-disease
#16
REVIEW
Osamu Yokota, Tomoko Miki, Chikako Ikeda, Shigeto Nagao, Shintaro Takenoshita, Hideki Ishizu, Takashi Haraguchi, Shigetoshi Kuroda, Seishi Terada, Norihito Yamada
Argyrophilic grain disease (AGD) is a common four-repeat tauopathy in elderly people. While dementia is a major clinical picture of AGD, recent studies support the possibility that AGD may be a pathological base in some patients with mild cognitive impairment, late-onset psychosis, bipolar disorder and depression. AGD often coexists with various other degenerative changes. The frequency of AGD in progressive supranuclear palsy (PSP) cases was reported to range from 18.8% to 80%. The frequency of AGD in corticobasal degeneration (CBD) cases tends to be higher than that in PSP cases, ranging from 41...
September 14, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28904358/monitoring-osteoarthritis-progression-using-near-infrared-nir-spectroscopy
#17
Isaac O Afara, Indira Prasadam, Zohreh Arabshahi, Yin Xiao, Adekunle Oloyede
We demonstrate in this study the potential of near infrared (NIR) spectroscopy as a tool for monitoring progression of cartilage degeneration in an animal model. Osteoarthritic degeneration was artificially induced in one joint in laboratory rats, and the animals were sacrificed at four time points: 1, 2, 4, and 6 weeks (3 animals/week). NIR spectra were acquired from both (injured and intact) knees. Subsequently, the joint samples were subjected to histological evaluation and glycosaminoglycan (GAG) content analysis, to assess disease severity based on the Mankin scoring system and to determine proteoglycan loss, respectively...
September 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28902611/accelerated-degenerative-joint-disease-after-staged-hip-arthroscopy-and-periacetabular-osteotomy-in-a-patient-with-hip-dysplasia
#18
Michael Guss, Thomas Youm
Hip dysplasia, when significant, is effectively treated with periacetabular osteotomy. There have been good results reported with hip arthroscopy when dysplasia is mild. However, when dysplasia is significant, hip arthroscopy with labral repair alone has led to poor results and even rapid decline to end stage arthritis. Staged hip arthroscopy and periacetabular osteotomy would potentially treat the labral lesion and correct the underlying bony abnormality that resulted in the labral pathology. Such a staged treatment plan should help prevent progression to degenerative joint disease...
May 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/28901863/tissue-fatty-acid-profile-is-differently-modulated-from-olive-oil-and-omega-3-polyunsaturated-fatty-acids-in-apcmin-mice
#19
Valeria Tutino, Maria Gabriella Caruso, Giampiero De Leonardis, Valentina De Nunzio, Maria Notarnicola
BACKGROUND: Fatty acid profile can be consideredan appropriate biomarker for investigating the relations between the patterns of fatty acid metabolism and specific diseases, ascancer, cardiovascular and degenerative diseases. OBJECTIVE: Aim of this study was to test the effects of diets enriched with olive oil and omega-3Polyunsaturated Fatty Acids (PUFAs) on fatty acid profile in intestinal tissue of ApcMin/+ mice. METHOD: Three groups of animals were considered: control group, receiving a standard diet; olive oilgroup, receiving a standard diet enriched with olive oil; omega-3 group, receiving a standard diet enriched with salmon fish...
September 11, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28901273/oleuropein-molecular-dynamics-and-computation
#20
Luigi Gentile, Nicola A Uccella, Ganapathy Sivakumar
Olive oil and table olive biophenols have been shown to significantly enrich the hedonic-sensory and nutritional quality of the Mediterranean diet. Oleuropein is one of the predominate biophenols in green olives and leaves, which not only has noteworthy free-radical quenching activity but also putatively reduces the incidence of various cancers. Clinical trials suggest that the consumption of extra virgin olive oil reduces the risk of several degenerative diseases. The oleuropein-based bioactives in olive oil could reduce tumor necrosis factor α, interleukin-1β and nitric oxide...
September 11, 2017: Current Medicinal Chemistry
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