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https://www.readbyqxmd.com/read/28193015/derivatization-strategies-for-the-detection-of-triamcinolone-acetonide-in-cartilage-by-using-matrix-assisted-laser-desorption-ionization-mass-spectrometry-imaging
#1
Florian P Y Barré, Bryn Flinders, João P Garcia, Imke Jansen, Lennart R S Huizing, Tiffany Porta, Laura B Creemers, Ron M A Heeren, Berta Cillero-Pastor
Osteoarthritis (OA), characterized by degeneration of the cartilaginous tissue in articular joints, severely impairs mobility in many people worldwide. The degeneration is thought to be mediated by inflammatory processes occurring in the tissue of the joint, including the cartilage. Intra-articular administered triamcinolone acetonide (TAA) is one of the drug treatments employed to ameliorate the inflammation and pain that characterizes OA. However, the penetration and distribution of TAA into the avascular cartilage is not well understood...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28185391/severe-cartilage-degeneration-in-patients-with-developmental-dysplasia-of-the-hip
#2
Wei-Jia Feng, Hui Wang, Chao Shen, Jun-Feng Zhu, Xiao-Dong Chen
Developmental dysplasia of the hip (DDH) is a developmental disorder that has long-term chronic pain and limited hip joint mobility as major pathological characteristics. This study aims to access the association between the development of DDH and cartilage metabolic disorders. Cartilage tissue samples were acquired from patients with DDH, osteoarthritis (OA) and femoral neck fracture. The proteoglycan level was evaluated by safranin O-fast green, toluidine blue and hematoxylin-eosin (HE) staining. The levels of collagen-II (Col-II), collagen-X (Col-X) and metal matrix proteinase-13 (MMP-13) were evaluated by immunohistochemistry (IHC) and Western blotting analysis...
February 10, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28178105/socket-preservation-using-a-biomimetic-nanostructured-matrix-and-atraumatic-surgical-extraction-technique
#3
Marco Mozzati, Giorgia Gallesio, Giorgio Staiti, Giovanna Iezzi, Adriano Piattelli, Carmen Mortellaro
OBJECTIVE: The aim of the present study was to evaluate the efficacy of biomimetic composite bone substitute composed of equine collagen I and Mg-hydroxyapatite in improving socket preservation after tooth extraction in humans. METHODS: Thirty-two patients were subjected to a single tooth extraction, performed without elevation of the full-thickness flap. In each patient, socket was grafted with the bone substitute and specimens were retrieved 2 months after surgery and processed for histological observations...
February 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28170076/biomimetic-sulphated-alginate-hydrogels-suppress-il-1%C3%AE-induced-inflammatory-responses-in-human-chondrocytes
#4
Ø Arlov, M Steinwachs, G Skjåk-Bræk, M Zenobi-Wong
Loss of articular cartilage from ageing, injury or degenerative disease is commonly associated with inflammation, causing pain and accelerating degradation of the cartilage matrix. Sulphated glycosaminoglycans (GAGs) are involved in the regulation of immune responses in vivo, and analogous polysaccharides are currently being evaluated for tissue engineering matrices to form a biomimetic environment promoting tissue growth while suppressing inflammatory and catabolic activities. Here, we characterise physical properties of sulphated alginate (S-Alg) gels for use in cartilage engineering scaffolds, and study their anti-inflammatory effects on encapsulated chondrocytes stimulated with IL-1β...
February 7, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28169323/social-pain-and-social-gain-in-the-adolescent-brain-a-common-neural-circuitry-underlying-both-positive-and-negative-social-evaluation
#5
Tim Dalgleish, Nicholas D Walsh, Dean Mobbs, Susanne Schweizer, Anne-Laura van Harmelen, Barnaby Dunn, Valerie Dunn, Ian Goodyer, Jason Stretton
Social interaction inherently involves the subjective evaluation of cues salient to social inclusion and exclusion. Testifying to the importance of such social cues, parts of the neural system dedicated to the detection of physical pain, the dorsal anterior cingulate cortex (dACC) and anterior insula (AI), have been shown to be equally sensitive to the detection of social pain experienced after social exclusion. However, recent work suggests that this dACC-AI matrix may index any socially pertinent information...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28161294/pantoea-calida-bacteremia-in-an-adult-with-end-stage-stomach-cancer-under-inpatient-care
#6
Kageto Yamada, Machiko Kashiwa, Katsumi Arai, Kazuya Satoyoshi, Hiroyuki Nishiyama
Pantoea calida is a gram-negative bacillus that was first identified in 2010. Here, we describe the first known case of P. calida bacteremia in a 77-year-old woman with end-stage stomach cancer under inpatient care. The patient was admitted to our hospital for pain after receiving anti-cancer therapy at outpatient facility. Thirteen days after admission, her temperature rose to 39.6 °C. A blood culture was ordered for suspected bacterial infection, and the patient was treated empirically with ampicillin/sulbactam...
February 2, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28158166/abnormal-local-brain-activity-beyond-the-pain-matrix-in-postherpetic-neuralgia-patients-a-resting-state-functional-mri-study
#7
Song Cao, Ganjun Song, Yi Zhang, Peng Xie, Ye Tu, Ying Li, Tian Yu, Buwei Yu
BACKGROUND: Postherpetic neuralgia (PHN) patients suffer debilitating chronic pain, hyperalgesia, and allodynia, as well as emotional disorders such as insomnia, anxiety, and depression. The brain structure and functional basis of PHN are still not fully understood. OBJECTIVES: To identify the changes of regional brain activity in resting-state PHN patients using regional homogeneity (ReHo) and fractional aptitude of low-frequency fluctuation (fALFF) methods. Correlations between spontaneous pain intensity and ReHo or fALFF were analyzed...
February 2017: Pain Physician
https://www.readbyqxmd.com/read/28156060/the-power-of-fat-and-its-adipose-derived-stromal-cells-emerging-concepts-for-fibrotic-scar-treatment
#8
REVIEW
Maroesjka Spiekman, Joris A van Dongen, Joep C Willemsen, Delia L Hoppe, Berend van der Lei, Martin C Harmsen
Lipofilling or lipografting is a novel and promising treatment method for reduction or prevention of dermal scars after injury. Ample anecdotal evidence from case reports supports the scar-reducing properties of adipose tissue grafts. However, only a few properly controlled and designed clinical trials have been conducted thus far on this topic. Also, the underlying mechanism by which lipofilling improves scar aspect and reduces neuropathic scar pain remains largely undiscovered. Adipose-derived stromal or stem cells (ADSC) are often described to be responsible for this therapeutic effect of lipofilling...
February 3, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28155029/texture-features-of-periaqueductal-gray-in-the-patients-with-medication-overuse-headache
#9
Zhiye Chen, Xiaoyan Chen, Mengqi Liu, Shuangfeng Liu, Lin Ma, Shengyuan Yu
BACKGROUND: Periaqueductal gray (PAG) is the descending pain modulatory center, and PAG dysfunction had been recognized in migraine. Here we propose to investigate altered PAG texture features (quantitative approach for extracting texture descriptors for images) in the patients with medication-overuse headache (MOH) based on high resolution brain structural image to understand the MOH pathogenesis. METHODS: The brain structural images were obtained from 32 normal controls (NC) and 44 MOH patients on 3...
December 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/28146402/a-multicenter-study-of-early-anti-inflammatory-treatment-in-patients-with-acute-anterior-cruciate-ligament-tear
#10
Christian Lattermann, Cale A Jacobs, Mary Proffitt Bunnell, Laura J Huston, Lee G Gammon, Darren L Johnson, Emily K Reinke, Janet L Huebner, Virginia B Kraus, Kurt P Spindler
BACKGROUND: It is increasingly recognized that biochemical abnormalities of the joint precede radiographic abnormalities of posttraumatic osteoarthritis (PTOA) by as much as decades. A growing body of evidence strongly suggests that the progression from anterior cruciate ligament (ACL) injury to PTOA is multifactorial, involving the interplay between biomechanical disturbances and biochemical homeostasis of articular cartilage. PURPOSE: The purposes of this randomized study using an acute ACL injury model were to (1) evaluate the natural progression of inflammatory and chondrodegenerative biomarkers, (2) evaluate the relationship between subjective reports of pain and inflammatory and chondrodegenerative biomarkers, and (3) determine if postinjury arthrocentesis and corticosteroid injection offer the ability to alter this biochemical cascade...
February 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28142257/transcranial-direct-current-stimulation-targeting-primary-motor-versus-dorsolateral-prefrontal-cortices-proof-of-concept-study-investigating-functional-connectivity-of-thalamo-cortical-networks-specific-to-sensory-affective-information-processing
#11
Vishwanath Sankarasubramanian, David Cunningham, Kelsey Potter, Erik Beall, Sarah Roelle, Nicole Varnerin, Andre Machado, Stephen Jones, Mark Lowe, Ela Plow
Pain matrix is subtended by an extensive cortical network spanning across sensory and affective domains. Transcranial direct current stimulation (tDCS) targeting primary motor (M1) or dorsolateral prefrontal cortices (DLPFC) represent popular methods to modulate such networks. However, differences between their mechanisms remain unknown. Here, in a proof-of-concept study, resting-state functional MRI was used to investigate the effects of stimulating M1 versus DLPFC on functional connectivity (FC) of networks within a healthy pain matrix...
January 31, 2017: Brain Connectivity
https://www.readbyqxmd.com/read/28141953/interposition-dermal-matrix-xenografts
#12
Julie A Neumann, Miltiadis H Zgonis, Kathleen D Rickert, Kendall E Bradley, Thomas J Kremen, Blake R Boggess, Alison P Toth
BACKGROUND: Management of massive rotator cuff tears in shoulders without glenohumeral arthritis remains problematic for surgeons. Repairs of massive rotator cuff tears have failure rates of 20% to 94% at 1 to 2 years postoperatively as demonstrated with arthrography, ultrasound, and magnetic resonance imaging. Additionally, inconsistent outcomes have been reported with debridement alone of massive rotator cuff tears, and limitations have been seen with other current methods of operative intervention, including arthroplasty and tendon transfers...
January 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28138334/atopic-keratoconjunctivitis-complicated-by-kocuria-koreensis-keratitis-the-first-case
#13
Noriko Inada, Jun Shoji, Satoru Yamagami
BACKGROUND: Patients with atopic dermatitis have a predisposition to Staphylococcus aureus and a Herpes simplex virus infection. The treatment of atopic diseases with steroid and immunosuppressive agents induces opportunistic infection. However, there is a concern regarding visual prognosis in patients with atopic keratoconjunctivitis (AKC) complicated with infectious keratitis. We report an unusual case of an atopic shield ulcer with Kocuria keratitis. CASE PRESENTATION: A 51-year-old Japanese man presented with a 14-day history of eye pain and visual loss in his left eye...
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28131909/differential-gene-expression-by-1-25-oh-2d3-in-an-endometriosis-stromal-cell-line
#14
Sue Ann Ingles, Liang Wu, Benjamin T Liu, Yibu Chen, Chun-Yeh Wang, Claire Templeman, Doerthe Brueggmann
Endometriosis is a common female reproductive disease characterized by invasion of endometrial cells into other organs, frequently causing pelvic pain and infertility. Alterations of the vitamin D system have been linked to endometriosis incidence and severity. To shed light on the potential mechanism for these associations, we examined the effects of 1,25(OH)2D3 on gene expression in endometriosis cells. Stromal cell lines derived from endometriosis tissue were treated with 1,25(OH)2D3, and RNA-seq was used to identify genes differentially expressed between treated and untreated cells...
January 28, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28126356/efficacy-comparison-of-accell-evo3%C3%A2-and-grafton%C3%A2-demineralized-bone-matrix-putties-against-autologous-bone-in-a-rat-posterolateral-spine-fusion-model
#15
Antonio T Brecevich, Paul D Kiely, B Victor Yoon, Joseph T Nguyen, Frank P Cammisa, Celeste Abjornson
BACKGROUND CONTEXT: Spinal fusion procedures are intended to stabilize the spinal column for a multitude of disorders including abnormal curvature, traumatic instability, degenerative instability, and damage from infections or tumors. As an aid in the bone healing response, bone graft materials are utilized to bridge joints for arthrodesis and promote unions in pseudoarthrosis. Currently, the gold standard for stabilizing fusion masses in spinal procedures involves utilizing the osteogenic, osteoinductive, and osteoconductive properties of autologous iliac crest cortico-cancellous bone...
January 23, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28122008/compromised-neurotrophic-and-angiogenic-regenerative-capability-during-tendon-healing-in-a-rat-model-of-type-ii-diabetes
#16
Aisha S Ahmed, Jian Li, Alim M D Abdul, Mahmood Ahmed, Claes-Göran Östenson, Paul T Salo, Carolyn Hewitt, David A Hart, Paul W Ackermann
Metabolic diseases such as diabetes mellitus type-II (DM-II) may increase the risk of suffering painful connective tissue disorders and tendon ruptures. The pathomechanisms, however, by which diabetes adversely affects connective tissue matrix metabolism and regeneration, still need better definition. Our aim was to study the effect of DM-II on expressional changes of neuro- and angiotrophic mediators and receptors in intact and healing Achilles tendon. The right Achilles tendon was transected in 5 male DM-II Goto-Kakizaki (GK) and 4 age-matched Wistar control rats...
2017: PloS One
https://www.readbyqxmd.com/read/28119539/inflammatory-mechanisms-in-tendinopathy-towards-translation
#17
REVIEW
Neal L Millar, George A C Murrell, Iain B McInnes
Tendinopathy is a multifactorial spectrum of tendon disorders that affects different anatomical sites and is characterized by activity-related tendon pain. These disorders are common, account for a high proportion (∼30%) of referrals to musculoskeletal practitioners and confer a large socioeconomic burden of disease. Our incomplete understanding of the mechanisms underpinning tendon pathophysiology continues to hamper the development of targeted therapies, which have been successful in other areas of musculoskeletal medicine...
January 25, 2017: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/28118926/treatment-of-nail-psoriasis-with-pulse-dye-laser-plus-calcipotriol-betametasona-gel-vs-nd-yag-plus-calcipotriol-betamethasone-gel-an-intrapatient-left-to-right-controlled-study
#18
L C Arango-Duque, M Roncero-Riesco, T Usero Bárcena, I Palacios Álvarez, E Fernández López
BACKGROUND: Treatment of nail psoriasis remains a challenging and often disappointing situation. OBJECTIVE: To compare the efficacy, adverse reactions and tolerability of treatment of nail psoriasis with PDL vs. Nd:YAG, in association with betametasona calcipotriol gel. METHODS: An open, prospective intrapatient left-to-right study was designed. The right hand of each patient received treatment with PDL and the left hand with Nd:YAG. Betamethasone calcipotriol gel was applied once a day during the first week after each laser session...
January 21, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28116125/use-of-fgf-2-and-fgf-18-to-direct-bone-marrow-stromal-stem-cells-to-chondrogenic-and-osteogenic-lineages
#19
Cindy Shu, Susan M Smith, Christopher B Little, James Melrose
AIM: Intervertebral disc degeneration/low back pain is the number one global musculoskeletal condition in terms of disability and socioeconomic impact. MATERIALS & METHODS: Multipotent mesenchymal stem cells (MSCs) were cultured in micromass pellets ± FGF-2 or -18 up to 41 days, matrix components were immunolocalized and gene expression monitored by quantitative-reverse transcription PCR. RESULTS: Chondrogenesis occurred earlier in FGF-18 than FGF-2 cultures...
December 2016: Future Science OA
https://www.readbyqxmd.com/read/28115872/a-cross-cultural-adaptation-and-validation-of-the-short-form-mcgill-pain-questionnaire-2-chinese-version-in-patients-with-chronic-visceral-pain
#20
Jiang-Lin Wang, Wei-Jun Zhang, Min Gao, Shengfa Zhang, Dong-Hua Tian, Jun Chen
OBJECTIVE: The present study aimed to develop a culturally appropriate and functional Standard Mandarin Chinese translation of the short-form McGill Pain Questionnaire-2 (SF-MPQ-2) and to assess its reliability and validity for characterizing chronic visceral pain in Chinese patients. BACKGROUND: The SF-MPQ-2 has been widely used in studies of pain epidemiology, diagnosis and treatment, and even pathophysiologic mechanisms to assess the major symptoms of clinical pain...
2017: Journal of Pain Research
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