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meniscus supplements

Laura E Downie, Nicholas Rumney, Anne Gad, Peter R Keller, Christine Purslow, Algis J Vingrys
PURPOSE: The aim of this study was to compare the self-reported clinical practice behaviours of optometrists in Australia and the United Kingdom (UK) with respect to the diagnosis and management of dry eye disease (DED). We also sought to examine whether the reported practices of clinicians in each region were consistent with current evidence-based recommendations for DED. METHODS: An online survey was distributed to optometrists (Australia, n = 654; UK, n = 1006)...
March 2016: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
Alfredo Ribelles, Carmen Galbis-Estrada, Maria A Parras, Bárbara Vivar-Llopis, Carla Marco-Ramírez, Manuel Diaz-Llopis
The aim of this work is to investigate changes in the ocular surface (OS) and tear film (TF) by means of questionnaire-based subjective symptoms, TF break-up time, Schirmer test, and TF analysis in women working with computers and to analyze the effects of the oral supplementation with antioxidants/omega 3 fatty acids (A/ω3) in the OS outcomes. Women aged 40-65 years (n = 148) were recruited at the Administrative Offices of Valencia (Spain) and distributed into two age groups, 40-52 years (AGE1; n = 87) and 53-65 years (AGE2; n = 61), and then subdivided according to being (or not) computer users (CUG; NCUG) during the workday...
2015: BioMed Research International
Mamatha M Pillai, V Elakkiya, J Gopinathan, C Sabarinath, S Shanthakumari, K Santosh Sahanand, B K Dinakar Rai, Amitava Bhattacharyya, R Selvakumar
The present study investigates the impact of biomolecules (biotin, glucose, chondroitin sulphate, proline) as supplement, (individual and in combination) on primary human meniscus cell proliferation. Primary human meniscus cells isolated from patients undergoing meniscectomy were maintained in Dulbecco's Modified Eagle's Medium (DMEM). The isolated cells were treated with above mentioned biomolecules as individual (0-100 µg/ml) and in combinations, as a supplement to DMEM. Based on the individual biomolecule study, a unique combination of biomolecules (UCM) was finalized using one way ANOVA analysis...
October 2016: Cytotechnology
Tangxin Liu, Zhongjun Yao, Mingwu He, Caixia Tian
BACKGROUND: Secondary osteoarthritis after ligament or meniscus injury generally causes great burdens to patients. Alpha-melanocyte-stimulating hormone (α-MSH ), a 13 amino acid neuropeptide produced by intracellular cleavage of the proopiomelanocortin (POMC) hormone, has been proven to suppress inflammation and protect cartilage from damage. The present study was carried out to explore the relationship between synovial fluid α-MSH levels and articular cartilage degeneration in patients with anterior cruciate ligament (ACL) deficiency...
2015: Clinical Laboratory
Robert A Magnussen, Victoria Duthon, Elvire Servien, Philippe Neyret
OBJECTIVE: The goals of this study are to address several questions, the answers to which are key to the understanding and eventually to the prevention of this frequent source of morbidity. These questions include the following: (1) What is the natural history of anterior cruciate ligament (ACL) deficiency? (2) How important is the status of the meniscus at the time of reconstruction? (3) Does ACL reconstruction prevent the development of osteoarthritis in the long term? (4) Can we predict which patients will develop osteoarthritis? (5) What can be done? DESIGN: This study addresses the key questions above through the long-term follow-up of a cohort of patients treated with ACL reconstruction by Professor Henri Dejour in Lyon, France, supplemented with a review of the relevant literature...
July 2013: Cartilage
Carmen Galbis-Estrada, Maria Dolores Pinazo-Durán, Sebastián Martínez-Castillo, José M Morales, Daniel Monleón, Vicente Zanon-Moreno
PURPOSE: We used nuclear magnetic resonance spectroscopy of hydrogen-1 nuclei ((1)H NMR S) to analyze the metabolic profile of reflex tears from patients with dry eye disorders. METHODS: We performed a prospective case-control study involving 90 participants: 55 patients diagnosed with dry eye syndrome (DESG) and 35 healthy subjects (control group, CG). From the DESG, two subgroups were formed: mild DES (n=22) and moderate DES (n=33). Participants were prescribed an oral nutraceutic supplementation containing antioxidants and essential polyunsaturated fatty acids to be taken as three capsules per day for 3 months...
2015: Molecular Vision
J F Nishimuta, M E Levenston
OBJECTIVE: This study compared the effects on cartilage and meniscus matrix catabolism and biosynthesis of several adipokines implicated in osteoarthritis (OA). DESIGN: Bovine cartilage and meniscus explants were cultured for 1 or 9 days in serum-free medium alone or with 0.02, 0.2, or 2 μg/ml of leptin, visfatin, adiponectin, or resistin. Media were supplemented with (3)H-proline or (35)S-sodium sulfate to evaluate protein and sulfated glycosaminoglycan (sGAG) accumulation on the last day of culture...
September 2015: Osteoarthritis and Cartilage
T Furumatsu, M Fujii, T Tanaka, S Miyazawa, T Ozaki
Anatomic double-bundle anterior cruciate ligament (ACL) reconstruction can restore the function and kinematics of the knee in ACL-deficient patients. Several outside-in drilling systems for accurate femoral tunnel creations have been developed. However, the femoral tunnel creation at the lower position of the intercondylar notch can be difficult in a usual leg position with the knee flexed at 90° without varus stress. This technical note describes that the figure-of-nine leg position provides a better arthroscopic view to safely clean up the ACL femoral footprint located at the lower area of the lateral intercondylar wall...
May 2015: Orthopaedics & Traumatology, Surgery & Research: OTSR
Xiaoning Yuan, George M Eng, Derya E Arkonac, Pen-Hsiu Grace Chao, Gordana Vunjak-Novakovic
OBJECTIVE: To study the interactions between vascular endothelial cells and meniscal fibrochondrocytes from the inner avascular and outer vascular regions of the meniscus and to identify angiogenic factors that enhance cell migration and integrative repair. METHODS: Bovine meniscal fibrochondrocytes (bMFCs) from the inner and outer regions of meniscus were cultured for 7 days with or without human umbilical vein endothelial cells (HUVECs) in a micropatterned 3-dimensional hydrogel system for assessment of cell migration...
January 2015: Arthritis & Rheumatology
Jie C Nguyen, Arthur A De Smet, Ben K Graf, Humberto G Rosas
Magnetic resonance (MR) imaging is currently the modality of choice for detecting meniscal injuries and planning subsequent treatment. A thorough understanding of the imaging protocols, normal meniscal anatomy, surrounding anatomic structures, and anatomic variants and pitfalls is critical to ensure diagnostic accuracy and prevent unnecessary surgery. High-spatial-resolution imaging of the meniscus can be performed using fast spin-echo and three-dimensional MR imaging sequences. Normal anatomic structures that can mimic a tear include the meniscal ligament, meniscofemoral ligaments, popliteomeniscal fascicles, and meniscomeniscal ligament...
July 2014: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Chia-Lung Wu, Deeptee Jain, Jenna N McNeill, Dianne Little, John A Anderson, Janet L Huebner, Virginia B Kraus, Ramona M Rodriguiz, William C Wetsel, Farshid Guilak
OBJECTIVE: The mechanisms linking obesity and osteoarthritis (OA) are not fully understood and have been generally attributed to increased weight, rather than metabolic or inflammatory factors. Here, we examined the influence of fatty acids, adipokines, and body weight on OA following joint injury in an obese mouse model. METHODS: Mice were fed high-fat diets rich in various fatty acids (FA) including saturated FAs (SFAs), ω-6 polyunsaturated FAs (PUFAs), and ω-3 PUFAs...
November 2015: Annals of the Rheumatic Diseases
Evan W James, Christopher M LaPrade, John A Feagin, Robert F LaPrade
Complete radial meniscus tears have been reported to result in deleterious effects in the knee joint if left unrepaired. An emphasis on meniscal preservation is important in order to restore native meniscal function. In this case report, a complete radial tear of the medial meniscus midbody was repaired using a novel crisscross suture transtibial technique. This technique secured the anterior and posterior meniscal horns, which were released from their extruded and scarred position along the capsule, using crisscrossing sutures passed through two transtibial tunnels and secured over a bone bridge on the anterolateral tibia...
September 2015: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Marta Radwan, David J Wilkinson, Wang Hui, Auriane P M Destrument, Sarah H Charlton, Matt J Barter, Beth Gibson, Josée Coulombe, Douglas A Gray, Andrew D Rowan, David A Young
OBJECTIVES: To determine whether the process of ubiquitination and/or activity of the 26S proteasome are involved in the induction of osteoarthritis (OA). METHODS: Bovine cartilage resorption assays, chondrocyte cell-line SW1353 and primary human articular chondrocytes were used with the general proteasome inhibitor MG132 or vehicle to identify a role of the ubiquitin-proteasome system (UPS) in cartilage destruction and matrix metalloproteinase-13 (MMP13) expression...
August 2015: Annals of the Rheumatic Diseases
E N Blaney Davidson, E L Vitters, M B Bennink, P L E M van Lent, A P M van Caam, A B Blom, W B van den Berg, F A J van de Loo, P M van der Kraan
OBJECTIVES: In osteoarthritis (OA) chondrocytes surrounding lesions express elevated bone morphogenetic protein 2 (BMP2) levels. To investigate the functional consequence of chondrocyte-specific BMP2 expression, we made a collagen type II dependent, doxycycline (dox)-inducible BMP2 transgenic mouse and studied the effect of elevated BMP2 expression on healthy joints and joints with experimental OA. METHODS: We cloned a lentivirus with BMP2 controlled by a tet-responsive element and transfected embryos of mice containing a collagen type II driven cre-recombinase and floxed rtTA to gain a mouse expressing BMP2 solely in chondrocytes and only upon dox exposure (Col2-rtTA-TRE-BMP2)...
June 2015: Annals of the Rheumatic Diseases
Iain Hitchcock, Marie Lunel, Serafim Bakalis, Robin S Fletcher, Elizabeth M Holt, Sean P Rigby
Gas sorption scanning curves are increasingly used as a means to supplement the pore structural information implicit in boundary adsorption and desorption isotherms to obtain more detailed pore space descriptors for disordered solids. However, co-operative adsorption phenomena set fundamental limits to the level of information that conventional scanning curve experiments can deliver. In this work, we use the novel integrated gas sorption and mercury porosimetry technique to show that crossing scanning curves are obtained for some through ink-bottle pores within a disordered solid, thence demonstrating that their shielded pore bodies are undetectable using conventional scanning experiments...
March 1, 2014: Journal of Colloid and Interface Science
Roger Croutze, Nadr Jomha, Hasan Uludag, Adetola Adesida
BACKGROUND: Limited intrinsic healing potential of the meniscus and a strong correlation between meniscal injury and osteoarthritis have prompted investigation of surgical repair options, including the implantation of functional bioengineered constructs. Cell-based constructs appear promising, however the generation of meniscal constructs is complicated by the presence of diverse cell populations within this heterogeneous tissue and gaps in the information concerning their response to manipulation of oxygen tension during cell culture...
2013: BMC Musculoskeletal Disorders
Edward D Bonnevie, Jennifer L Puetzer, Lawrence J Bonassar
In this study we analyzed the effects of IGF-I on the boundary lubricating ability of engineered meniscal tissue using a high density collagen gel seeded with meniscal fibrochondrocytes. Biochemical, histological, immunohistochemical, and tribological analyses were carried out to determine a construct's ability to functionally localize lubricin. Our study revealed that supplementation with IGF-I enhanced both the proliferation of cells within the construct as well as enhanced the anabolic activity of the seeded cells...
June 27, 2014: Journal of Biomechanics
Min-Jun Huang, Liang Wang, Da-di Jin, Zhong-Min Zhang, Tian-Yu Chen, Chun-Hong Jia, Yan Wang, Xiao-Chen Zhen, Bin Huang, Bo Yan, Yu-Hui Chen, Sheng-Fa Li, Jin-Cheng Yang, Yi-Fan Dai, Xiao-Chun Bai
BACKGROUND: An exogenous supplement of n-3 polyunsaturated fatty acids (PUFAs) has been reported to prevent osteoarthritis (OA) through undefined mechanisms. OBJECTIVE: This study investigated the effect of alterations in the composition of endogenous PUFAs on OA, and associations of PUFAs with mammalian target of rapamycin complex 1 (mTORC1) signalling, a critical autophagy pathway in fat-1 transgenic (TG) mice. METHODS: fat-1 TG and wild-type mice were used to create an OA model by resecting the medial meniscus...
September 2014: Annals of the Rheumatic Diseases
U Freymann, M Endres, U Goldmann, M Sittinger, C Kaps
OBJECTIVE: Repair approaches for the non-vascular meniscus are rarely developed. Recent strategies use scaffold-based techniques and inducing factors. The aim of the study was the investigation of cell recruitment and re-differentiation inducing factors for a scaffold-based meniscus repair approach. METHOD: 3D cultivation of in vitro expanded human meniscus-derived cells was performed in high-density cultures supplemented with 25% hyaluronic acid (HA), 10% human serum (HS) or 10 ng/ml transforming growth factor (TGF-ß3) compared to untreated controls...
May 2013: Osteoarthritis and Cartilage
Xavier Conesa, Joan Minguell, Josep Cortina, Enric Castellet, Lluís Carrera, Joan Nardi, Enric Cáceres
We report an unusual case of anteromedial tibial plateau compression fracture following hyperextension and forced varus of the knee, resulting in an anterior bone fragment large enough to require osteosynthesis. This uncommon lesion was associated with posterolateral complex injury, diagnosed with magnetic resonance imaging (MRI), while both cruciate ligaments were preserved. After proceeding with tibial plateau osteosynthesis, a peroneal tendon allograft was used for supplementation repair of the lateral collateral ligament and biceps tendon in a single surgical intervention...
December 2013: Journal of Knee Surgery
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