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https://www.readbyqxmd.com/read/28822868/preliminary-profiling-of-microrna-in-the-normal-and-regenerating-liver-of-chiloscyllium-plagiosum
#1
Dandan Cheng, Yanna Chen, Conger Lu, Yuezhong Qian, Zhengbing Lv
Liver is a vital organ present in animals for detoxification, protein synthesis, digestion and other functions and its powerful regenerative capacity is well known. C. plagiosum is an abundant fish that is representative of the cartilaginous class in the southeast coastal region of China and its liver accounts for >70% of the fish's visceral weight and contains many bioactive substances. MicroRNAs (microRNAs) play important roles in a wide range of biological processes in eukaryotes, including cell proliferation, differentiation, apoptosis...
July 27, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28822738/a-study-of-the-damage-behaviour-of-porcine-intervertebral-discs-in-a-bioreactor-environment
#2
M Azarnoosh, M Stoffel, B Markert
The intervertebral discs are cartilaginous, articulating structures that lie between vertebral bodies, allowing flexibility, transmission, modification, and also distribution of the forces to the spinal column. Disc degeneration is characterised by progressive loss of disc height and exaggerated radial bulging. Therefore, the spine becomes shorter, stiffer, and less mobile. In the last several decades, there is a strong need for a tissue engineering strategy that alleviates pain and restores spine function by directly addressing the underlying biological causes of disc degeneration...
August 9, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28819606/intra-articular-loose-body-with-concomitant-bankart-lesion-after-a-traumatic-shoulder-dislocation-a-case-report
#3
Jason B T Lim, Andrew H C Tan
INTRODUCTION: The spectrum of pathoanatomic lesions encountered in anterior shoulder dislocation is broad. There could be a presence of loose bodies, chondral and osteochondral, in the shoulder joint and also concomitant rotator cuff partial tears resulting from acute and chronic shoulder instability. CASE REPORT: We present one case report of a 46-year-old male Chinese with an uncommon case of Bankart lesion, with a full thickness chondral defect over the superior glenoid articular surface manifesting as a large intra-articular loose cartilaginous body...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28819605/recurrent-extra-and-intra-articular-synovial-chondromatosis-of-the-ankle-with-tarsal-tunnel-syndrome-a-rare-case-report
#4
Jonathan A Isbell, Andrew C Morris, Ibukunoluwa Araoye, Sameer Naranje, Ashish B Shah
INTRODUCTION: Synovial chondromatosis is a rare, benign monoarticular condition characterized by the metaplastic formation of cartilaginous nodules from the synovium of joints (intra-articular), tendons and bursae (extra-articular). These nodules have the potential to detach and form loose bodies within the joint space. The most common locations are the large joints such as the knees, hips, elbows, and shoulders, with less common locations being the foot and ankle joints. Synovial chondromatosis primarily occurs in men between the third and fifth decades of life, and it typically presents as chronic joint pain with swelling, decreased joint range of motion, and osteoarthritis...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28812679/meckel-s-cartilage-breakdown-offers-clues-to-mammalian-middle-ear-evolution
#5
Neal Anthwal, Daniel J Urban, Zhe-Xi Luo, Karen E Sears, Abigail S Tucker
A key transformation in mammalian ear evolution was incorporation of the primary jaw joint of premammalian synapsids into the definitive mammalian middle ear of living mammals. This evolutionary transition occurred in two steps, starting with a partial or 'transitional' mammalian middle ear in which the ectotympanic and malleus were still connected to the mandible by an ossified Meckel's cartilage (MC), as observed in many Mesozoic mammals. This was followed by MC breakdown, freeing the ectotympanic and the malleus from the mandible and creating the definitive mammalian middle ear...
March 6, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812406/types-of-orbital-osteoma-a-descriptive-analysis
#6
Tayyab Afghani, Hassan Mansoor
AIMS: This study describes different types of orbital osteoma based on clinical per-operative morphology and radiological findings to facilitate communication between ophthalmologists and surgical management for a better patient outcome. MATERIALS AND METHODS: The study was conducted in the Orbit and Oculoplastics Department of Al-Shifa Trust Eye Hospital, Rawalpindi, Pakistan, from July 1, 2001 to June 30, 2014. A retrospective analysis of 520 diagnosed orbital tumours who presented to us was carried out and the prevalence of orbital osteoma was determined...
August 16, 2017: Orbit
https://www.readbyqxmd.com/read/28808811/construction-and-biocompatibility-of-a-thin-type-i-ii-collagen-composite-scaffold
#7
Long Han, Zhong-Wen Zhang, Bo-He Wang, Zhen-Kun Wen
Articular cartilage injury is a common type of damage observed in clinical practice. A matrix-induced autologous chondrocyte implant was developed to repair articular cartilage as an advancement on the autologous chondrocyte implant procedure. Here, we establish a thin double layer of collagen as a novel and effective bioscaffold for the regeneration of cartilaginous lesions. We created a collagen membrane with double layers using a cover slip, a cover slip, and the collagen was then freeze-dried under vacuum...
August 14, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28808745/parathyroid-hormone-1-34-promotes-fracture-healing-in-ovariectomized-rats-with-type-2-diabetes-mellitus
#8
G Y Liu, G L Cao, F M Tian, H P Song, L L Yuan, L D Geng, Z Y Zheng, L Zhang
Ovariectomized (OVX) rats with type 2 diabetes mellitus (T2DM) with femur fracture received vehicle, insulin, or insulin plus parathyroid hormone (PTH) treatment for 2 and 3 weeks. Radiography, histomorphometry, histology, and immunohistochemistry in callus were evaluated. INTRODUCTION: Reports about effects of PTH plus insulin on callus formation of osteoporotic fracture with T2DM were limited. This study was designed to investigate the effects of the combination of PTH and insulin on fracture healing in OVX rats with T2DM...
August 14, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28807668/evidence-that-blood-flukes-trematoda-aporocotylidae-of-chondrichthyans-infect-bivalves-as-intermediate-hosts-indications-of-an-ancient-diversification-of-the-schistosomatoidea
#9
Thomas H Cribb, Rowan C Chick, Wayne O'Connor, Stephan O'Connor, Daniel Johnson, Kim B Sewell, Scott C Cutmore
Blood flukes (Aporocotylidae) of actinopterygians (bony fishes), have been shown to infect freshwater gastropods and marine polychaetes as intermediate hosts. However, no life cycle is known for any aporocotylid of chondrichthyans (cartilaginous fishes) and no adult aporocotylid has been linked to a cercaria infecting a bivalve. Here we report two novel infections that fill these gaps. Cercariae consistent with the family Aporocotylidae were found developing in sporocysts in the gonad of the surf pipi, Donax deltoides Lamarck, 1818 (Bivalvia: Donacidae), from Stockton Beach, central New South Wales, Australia...
August 12, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28806939/effect-of-electromagnetic-fields-on-human-osteoarthritic-and-non-osteoarthritic-chondrocytes
#10
Julia Isabelle Redeker, Bärbel Schmitt, Nele Pascale Grigull, Christian Braun, Andreas Büttner, Volkmar Jansson, Susanne Mayer-Wagner
BACKGROUND: Studies of the effects of electromagnetic fields (EMFs) on cartilaginous cells show a broad range of outcomes. However EMFs are not yet clinically applied as standard treatment of osteoarthritis, as EMF effects are showing varying outcomes in the literature. The aim of this study was to examine effects of EMFs (5 mT or 8 mT) on osteoarthritic (OA) and non-OA chondrocytes in order to investigate whether EMF effects are related to chondrocyte and EMF quality. METHODS: Pellets of human OA and non-OA chondrocytes were exposed to a sinusoidal 15 Hz EMF produced by a solenoid...
August 14, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28805595/prenatal-diagnosis-of-congenital-lobar-fluid-overload
#11
REVIEW
Pei-Shan Tsai, Chih-Ping Chen, Dao Chen Lin, Yu-Peng Liu
Prenatal congenital lobar fluid overload (CLFO), which was first described by Ramsay and Byron, is identical to postnatal congenital lobar overinflation. It is characterized by progressive lobar overexpansion that compresses the other adjacent lung lobes. The underlying cause can be an intrinsic cartilaginous abnormality or an extrinsic airway compression. It may be associated with cardiovascular anomalies in 12%-14% of cases and affects males more frequently than females. Most cases are diagnosed postnatally, but early antenatal diagnosis and sequential follow-up are attempted for early treatment, if clinically indicated...
August 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28802681/activated-fgfr3-promotes-bone-formation-via-accelerating-endochondral-ossification-in-mouse-model-of-distraction-osteogenesis
#12
Yusuke Osawa, Masaki Matsushita, Sachi Hasegawa, Ryusaku Esaki, Masahito Fujio, Bisei Ohgawara, Naoki Ishiguro, Kinji Ohno, Hiroshi Kitoh
Achondroplasia (ACH) is one of the most common short-limbed skeletal dysplasias caused by gain-of-function mutations in the fibroblast growth factor receptors 3 (FGFR3) gene. Distraction osteogenesis (DO) is a treatment option for short stature in ACH in some countries. Although the patients with ACH usually show faster healing in DO, details of the newly formed bone have not been examined. We have developed a mouse model of DO and analyzed new bone regenerates of the transgenic mice with ACH (Fgfr3(ach) mice) histologically and morphologically...
August 9, 2017: Bone
https://www.readbyqxmd.com/read/28802161/physicochemical-analysis-of-permian-coprolites-from-brazil
#13
M I C Rodrigues, J H da Silva, F Eroni P Santos, P Dentzien-Dias, J C Cisneros, A S de Menezes, P T C Freire, B C Viana
In this paper we performed the study of two coprolites (fossilized feces) collected from the exposed levels of the Pedra de Fogo Formation, Parnaiba Sedimentary Basin, and Rio do Rasto Formation, Paraná Sedimentary Basin, both of the Palaeozoic era (Permian age). They were characterized using X-ray diffractometry, infrared, Raman and energy dispersive spectroscopy techniques in order to aid our understanding of the processes of fossilization and to discuss issues related to the feeding habits of the animals which generated those coprolites, probably cartilaginous fishes...
August 8, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28801687/human-mesenchymal-stromal-cell-sheet-enhances-allograft-repair-in-a-mouse-model
#14
Xifu Shang, Bing Shu, Yongjun Wang, Zhengliang Luo, Guangxi Wang, Shane Barton, Massimo Max Morandi, Christopher Kevil, Yufeng Dong
To determine whether cell sheets generated with long-term passaged (P10) aging human mesenchymal stromal cells (MSCs) could be used for bone tissue regeneration as tissue engineered periosteum in a femoral allograft mouse model similar to fresh passaged (P3) young MSCs. At 3 weeks after transplantation of MSC sheets, results showed more bony callus formed between allograft and host bone ends in both young P3 MSC and aged P10 MSC sheet-wrapped groups when compared to allograft alone. At 6 weeks, while both MSC sheet-wrapped allografts showed more bony callus formation when compared to allograft alone groups, the bony callus size in aged P10 MSC sheet groups was significantly less than young P3 MSC sheet groups...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28800889/spatio-temporal-expression-patterns-of-wnt-signaling-pathway-during-the-development-of-temporomandibular-condylar-cartilage
#15
Kan Chen, Huixin Quan, Gang Chen, Di Xiao
There is a growing body of evidence supporting the involvement of the Wnt signaling pathway in various aspects of skeletal and joint development; however, it is unclear whether it is involved in the process of temporomandibular joint development. In order to clarify this issue, we examined the spatio-temporal distribution of mRNAs and proteins of the Wnt family during the formation of the mandibular condylar cartilage at the prenatal and postnatal stages. An in situ hybridization test revealed no mRNAs of β-catenin and Axin2 during early mesenchymal condensation; the ligands surveyed in this study (including Wnt-4, 5a, and 9a) were clearly detected at various ranges of expression, mainly in the condylar blastema and later distinct cartilaginous layers...
August 8, 2017: Gene Expression Patterns: GEP
https://www.readbyqxmd.com/read/28800076/human-dental-pulp-cells-differentiate-toward-neuronal-cells-and-promote-neuroregeneration-in-adult-organotypic-hippocampal-slices-in-vitro
#16
Li Xiao, Ryoji Ide, Chikako Saiki, Yasuo Kumazawa, Hisashi Okamura
The adult mammalian central nerve system has fundamental difficulties regarding effective neuroregeneration. The aim of this study is to investigate whether human dental pulp cells (DPCs) can promote neuroregeneration by (i) being differentiated toward neuronal cells and/or (ii) stimulating local neurogenesis in the adult hippocampus. Using immunostaining, we demonstrated that adult human dental pulp contains multipotent DPCs, including STRO-1, CD146 and P75-positive stem cells. DPC-formed spheroids were able to differentiate into neuronal, vascular, osteogenic and cartilaginous lineages under osteogenic induction...
August 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28798204/imaging-igf-i-uptake-in-growth-plate-cartilage-using-in-vivo-multiphoton-microscopy
#17
Maria A Serrat, Gabriela Ion
Bones elongate through endochondral ossification in cartilaginous growth plates located at ends of primary long bones. Linear growth ensues from a cascade of biochemical signals initiated by actions of systemic and local regulators on growth plate chondrocytes. Although cellular processes are well defined, there is a fundamental gap in understanding how growth regulators are physically transported from surrounding blood vessels into and through dense, avascular cartilage matrix. Intravital imaging using in vivo multiphoton microscopy is one promising strategy to overcome this barrier by quantitatively tracking molecular delivery to cartilage from the vasculature in real time...
August 10, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28796694/myoepithelioma-of-soft-tissue-with-both-squamous-and-adipocytic-metaplasia
#18
Ashley Elsensohn, Joshua H Mo, Tyler J Maly, Patrick K Lee, Sebastien de Feraudy
Soft tissue, or cutaneous, myoepitheliomas are rare tumors arising solely from a myoepithelial origin. These neoplasms are typically associated with uncertain differentiation and can contain cellular morphologies that include spindle, plasmacytoid, epithelioid, or clear cell forms. Soft tissue myoepitheliomas are commonly found on the lower limbs and in the pelvic girdle but can occur throughout the body. A small minority display heterogenous differentiation, typically osseous or cartilaginous in nature. Squamous and adipocytic cell types are much rarer...
August 3, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28796028/sleeve-fracture-of-the-adult-patella-case-report-and-review-of-the-literature
#19
Linjun Xie, Hong Xu, Lizhi Zhang, Rong Xu, Yingkun Guo
RATIONALE: The patellar fractures are common in adults, but rare in children. As a particular type of patellar fracture, however, sleeve fractures are almost always limited to children in the under 16's group. PATIENT CONCERNS: Herein, we report a rare case of a 19-year-old healthy adult female who presented sleeve fracture at the superior pole of the left patella. The clinical and radiological features are found including joint effusion, anterior tilt of the patella and a shell of bone lying proximally to the patella...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28792510/morphological-and-taxonomic-descriptions-of-a-new-genus-and-species-of-killifishes-teleostei-cyprinodontiformes-from-the-high-andes-of-northern-chile
#20
Gloria Arratia, Irma Vila, Natalia Lam, Claudia Jimena Guerrero, Claudio Quezada-Romegialli
A new genus and species, Pseudorestias lirimensis, is described from the southern part of the Chilean Altiplano. While sharing several characters that clearly align the new species with Orestias, this new fish is characterized by numerous autapomorphies: the Meckel cartilage is a continuous cartilage that broadly expands posteriorly (in large specimens, it keeps its anterior part and is resorbed posteriorly), the basibranchials are fused into one long element, the second pharyngobranchial is not displaced dorsally over pharyngobranchial tooth plate 3+4, but they are aligned, the anterior and posterior ceratohyals are closely articulated keeping a scarce amount of cartilage between both bones and ventral to them, ossified middle and distal dorsal radials are present in females as well as ossified middle and distal anal radials...
2017: PloS One
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