keyword
MENU ▼
Read by QxMD icon Read
search

Cartilaginous morphology

keyword
https://www.readbyqxmd.com/read/28631675/-the-morphological-and-clinical-aspects-of-the-curvature-of-the-nasal-septum
#1
V N Krasnozhen, D A Shcherbakov, A V Volodeev, L A Musina, Yu A Garskova
The curvature of the nasal septum (NS) is one of the most widespread deformations of the facial skeleton. The objective of the present study was to substantiate the principles of and develop the rationale for the surgical correction and conservative treatment of this condition based on the morphological features of various types of deflection of the nasal septum. We have undertaken the morphological analysis of the osseous and cartilaginous structures determining the type and the shape of the curvature of the nasal septum together with the clinical analysis of different morphological variants of the deflection of the nasal septum making use of the R...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28628951/cranial-indicators-identified-for-peak-incidence-of-otitis-media
#2
Anthony Pagano, Eugene Wang, Derek Yuan, Daniel Fischer, Charles Bluestone, Samuel Marquez, Jeffrey Laitman
Acute otitis media (AOM) is one of the most common pediatric conditions worldwide. Peak age of occurrence for AOM has been identified within the first postnatal year and it remains frequent until approximately six postnatal years. Morphological differences between adults and infants in the cartilaginous Eustachian tube (CET) and associated structures may be responsible for development of this disease yet few have investigated normal growth trajectories. We tested hypotheses on coincidence of skeletal growth changes and known ages of peak AOM occurrence...
June 19, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28590074/evolutionary-bottlenecks-in-brackish-water-habitats-drive-the-colonization-of-fresh-water-by-stingrays
#3
Kim Nadine Kirchhoff, Torsten Hauffe, Björn Stelbrink, Christian Albrecht, Thomas Wilke
Species richness in freshwater bony fishes depends on two main processes: the transition into and the diversification within freshwater habitats. In contrast to bony fishes, only few cartilaginous fishes, mostly stingrays (Myliobatoidei), were able to colonize fresh water. Respective transition processes have been mainly assessed from a physiological and morphological perspective, indicating that the freshwater lifestyle is strongly limited by the ability to perform osmoregulatory adaptations. However, the transition history and the effect of physiological constraints on the diversification in stingrays remain poorly understood...
June 7, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28580627/age-related-modulation-of-angiogenesis-regulating-factors-in-the-swine-meniscus
#4
Alessia Di Giancamillo, Daniela Deponti, Silvia Modina, Irene Tessaro, Cinzia Domeneghini, Giuseppe Maria Peretti
An in-depth knowledge of the native meniscus morphology and biomechanics in its different areas is essential to develop an engineered tissue. Meniscus is characterized by a great regional variation in extracellular matrix components and in vascularization. Then, the aim of this work was to characterize the expression of factors involved in angiogenesis in different areas during meniscus maturation in pigs. The menisci were removed from the knee joints of neonatal, young and adult pigs, and they were divided into the inner, intermediate and outer areas...
June 4, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28575984/chitosan-%C3%AE-poly-glutamic-acid-scaffolds-with-surface-modified-albumin-elastin-and-poly-l-lysine-for-cartilage-tissue-engineering
#5
Yung-Chih Kuo, Hao-Fu Ku, Rajendiran Rajesh
Cartilage has limited ability to self-repair due to the absence of blood vessels and nerves. The application of biomaterial scaffolds using biomimetic extracellular matrix (ECM)-related polymers has become an effective approach to production of engineered cartilage. Chitosan/γ-poly(glutamic acid) (γ-PGA) scaffolds with different mass ratios were prepared using genipin as a cross-linker and a freeze-drying method, and their surfaces were modified with elastin, human serum albumin (HSA) and poly-l-lysine (PLL)...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28556569/matrilin-3-co-delivery-with-adipose-derived-mesenchymal-stem-cells-promotes-articular-cartilage-regeneration-in-a-rat-osteochondral-defect-model
#6
Manjunatha S Muttigi, ByoungJu Kim, Bogyu Choi, Arai Yoshie, Hemant Kumar, Inbo Han, Hansoo Park, Soo-Hong Lee
Matrilin-3 is an essential extracellular matrix (ECM) component present only in cartilaginous tissues. Matrilin-3 exerts chondro-protective effects by regulating an anti-inflammatory function and ECM components. We hypothesized that the co-delivery of matrilin-3 with infrapatellar adipose tissue-derived mesenchymal stem cells (Ad-MSCs) may enhance articular cartilage regeneration. Matrilin-3 treatment of Ad-MSCs in serum-free media induced collagen II and aggrecan expression, andmatrilin-3 in chondrogenic media (CM) also enhanced in vitro chondrogenic differentiation...
May 29, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28554756/metanephric-stromal-tumor-with-a-rare-incidence-of-squamous-epithelium-a-case-report-and-a-brief-review-of-the-literature
#7
Jia Wang, Wenjie Jin, Xiangru Wu
Metanephric stromal tumor (MST) of the kidney, a rare benign pediatric neoplasm recognized for less than 20 years, is not widely known. The authors describe a case of MST with rare squamous epithelium in a 14-month-old female. A renal mass was discovered during her fetal period. After her birth, computerized tomography revealed that the mass was localized in the inferior pole of her left kidney. She then underwent nephrectomy. The tumor was an unencapsulated but well-defined mass with a white, solid and firm cut surface and had dimensions of 4cm×3...
March 21, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28543786/immunohistochemical-colocalization-of-g-protein-alpha-subunits-and-5-ht-in-the-rectal-gland-of-the-cartilaginous-fish-scyliorhinus-canicula
#8
E R Lauriano, S Pergolizzi, J Gangemi, M Kuciel, G Capillo, M Aragona, C Faggio
Serotonin [5-hydroxytryptamine (5-HT)] is an important neuromodulator involved in a wide range of physiological functions. The effects of serotonin are mediated by an extended family of receptors coupled to multiple heterotrimeric G-proteins, associated with cellular membrane. G proteins connect receptors to effectors and thus trigger intracellular signaling pathways. These cellular processes several regulate systemic functions such as embryonic development, gonadal development, learning and memory, and organismal homeostasis...
May 22, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28529682/segmentations-of-the-cartilaginous-skeletons-of-chondrichthyan-fishes-by-the-use-of-state-of-the-art-computed-tomography
#9
Andrew D McQuiston, Callie Crawford, U Joseph Schoepf, Akos Varga-Szemes, Christian Canstein, Matthias Renker, Carlo N De Cecco, Stefan Baumann, Gavin J P Naylor
AIM: To apply dual-source multidetector computed tomography (DSCT) scanning technology in conjunction with computationally assisted segmentation in order to explore and document skeletal variation that has occurred over the course of evolution. METHODS: We examined 4 divergent species of elasmobranchs with high-resolution 3(rd) generation DSCT. The formalin prepared species examined were: Aptychotrema vincentiana, Mitsukurina owstoni, Negaprion brevirostris and Dactylobatus armatus...
April 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28517044/intercentrum-versus-pleurocentrum-growth-in-early-tetrapods-a-paleohistological-approach
#10
Marylène Danto, Florian Witzmann, Stephanie E Pierce, Nadia B Fröbisch
A variety of vertebral centrum morphologies have evolved within early tetrapods which range from multipartite centra consisting of intercentra and pleurocentra in stem-tetrapods, temnospondyls, seymouriamorphs, and anthracosaurs up to monospondylous centra in lepospondyls. With the present study, we aim to determine the formation of both intercentrum and pleurocentrum and asked whether these can be homologized based on their bone histology. Both intercentra and pleurocentra ossified endochondrally and periosteal bone was subsequently deposited on the outer surface of the centra...
May 18, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28482562/bimodal-morphological-analyses-of-native-and-engineered-tissues
#11
Sasan Jalili-Firoozinezhad, Ivan Martin, Arnaud Scherberich
Assessing the morphological features of native and engineered tissues is pivotal to evaluate their degree of development and to identify possible structure-function relationships. Conventional histological or immunohistochemical imaging of stained sections provides limited information about their architecture. Scanning electron microscopy (SEM) yields sub-micrometric resolution images of tissues, but typically cannot be associated with the morphological structures identified by histology. The aim of this study was to establish a technique based on SEM analysis of sections of paraffin-embedded tissues prepared for histological processing (Histo-SEM) for the assessment of morpho-architectural properties of native and engineered tissues...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28470724/evolutionary-mechanisms-that-generate-morphology-and-neural-circuit-diversity-of-the-cerebellum
#12
REVIEW
Masahiko Hibi, Koji Matsuda, Miki Takeuchi, Takashi Shimizu, Yasunori Murakami
The cerebellum is derived from the dorsal part of the anterior-most hindbrain. The vertebrate cerebellum contains glutamatergic granule cells (GCs) and gamma-aminobutyric acid (GABA)ergic Purkinje cells (PCs). These cerebellar neurons are generated from neuronal progenitors or neural stem cells by mechanisms that are conserved among vertebrates. However, vertebrate cerebella are widely diverse with respect to their gross morphology and neural circuits. The cerebellum of cyclostomes, the basal vertebrates, has a negligible structure...
May 4, 2017: Development, Growth & Differentiation
https://www.readbyqxmd.com/read/28459103/meckel-s-cartilage-breakdown-offers-clues-to-mammalian-middle-ear-evolution
#13
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/28424075/computational-modeling-of-airway-instability-and-collapse-in-tracheomalacia
#14
Scott J Hollister, Maximilian P Hollister, Sebastian K Hollister
BACKGROUND: Tracheomalacia (TM) is a condition of excessive tracheal collapse during exhalation. Both acquired and congenital forms of TM are believed to result from morphological changes in cartilaginous, fibrous and/or smooth muscle tissues reducing airway mechanical properties to a degree that precipitates collapse. However, neither the specific amount of mechanical property reduction nor the malacic segment lengths leading to life threatening airway collapse in TM are known. Furthermore, the specific mechanism of collapse is still debated...
April 19, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28414273/oriented-clonal-cell-dynamics-enables-accurate-growth-and-shaping-of-vertebrate-cartilage
#15
Marketa Kaucka, Tomas Zikmund, Marketa Tesarova, Daniel Gyllborg, Andreas Hellander, Josef Jaros, Jozef Kaiser, Julian Petersen, Bara Szarowska, Phillip T Newton, Vyacheslav Dyachuk, Lei Li, Hong Qian, Anne-Sofie Johansson, Yuji Mishina, Joshua D Currie, Elly M Tanaka, Alek Erickson, Andrew Dudley, Hjalmar Brismar, Paul Southam, Enrico Coen, Min Chen, Lee S Weinstein, Ales Hampl, Ernest Arenas, Andrei S Chagin, Kaj Fried, Igor Adameyko
Cartilaginous structures are at the core of embryo growth and shaping before the bone forms. Here we report a novel principle of vertebrate cartilage growth that is based on introducing transversally-oriented clones into pre-existing cartilage. This mechanism of growth uncouples the lateral expansion of curved cartilaginous sheets from the control of cartilage thickness, a process which might be the evolutionary mechanism underlying adaptations of facial shape. In rod-shaped cartilage structures (Meckel, ribs and skeletal elements in developing limbs), the transverse integration of clonal columns determines the well-defined diameter and resulting rod-like morphology...
April 17, 2017: ELife
https://www.readbyqxmd.com/read/28411397/chondrosarcoma-like-metastasis-from-a-poorly-differentiated-uterine-cervical-squamous-cell-carcinoma-a-unique-morphology-and-diagnostic-pitfall-in-cytology
#16
Shohei Ikoma, Marlo Nicolas, Jaishree Jagirdar, Maria Luisa Policarpio-Nicolas
Rare cases of metastatic squamous cell carcinoma with chondroid differentiation from esophageal primary have been reported but none from the uterine cervix. Given the rarity of this phenomenon and potential diagnostic pitfall, we present this unusual case. The patient is a 25-year-old woman who presented with shortness of breath. Computerized tomography (CT) showed several lung and pleural-based nodules. CT-guided core biopsy with touch preparations were performed on the pleural-based nodule. The touch preparations showed large, spindle-to-oval shaped cells with pleomorphic nuclei embedded in metachromatic chondroid stroma...
April 14, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28391818/a-computational-measurement-of-cartilaginous-endplate-structure-using-ultrashort-time-to-echo-mri-scanning
#17
Ri-Chu Jin, Yong-Can Huang, Keith D K Luk, Yong Hu
BACKGROUND AND OBJECTIVE: Ultrashort time-to-echo (UTE) MRI scanning has been applied to observe the cartilaginous endplate (CEP) in intervertebral disc. CEP plays a critical role in IVD health and disease. Nevertheless, current measurements of CEP based on UTE MRI technique are still by manual segmentation, and observation of signal abnormality was usually time-consuming and often disturbed by subjective bias. This study hence proposed an efficient way to harvest the global parameters of CEP after UTE MRI scanning...
May 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28390808/morphological-characteristics-of-external-auditory-canal-in-congenital-aural-stenosis-patients
#18
Dongming Yin, Chenlong Li, Keguang Chen, Juan Hong, Jieying Li, Lin Yang, Tianyu Zhang, Peidong Dai
Objective To investigate characteristics of congenital aural stenosis (CAS) patients' external auditory canal (EAC) (position, length, orientation, etc.) and compare them with normal EAC. METHODS: CT images of normal people and CAS patient were utilized. We obtained coordinates of EAC landmarks. Then the Matlab program could calculate some anatomic parameters about EAC, including distances from central point of tympanic annulus (CA), central point of osseous EAC opening (CO), central point of cartilaginous EAC inside opening (CCi), central point of cartilaginous EAC outside opening (CCo) to the Frankfurt horizontal plane (Pfrkt), the median sagittal plane (Psag), the coronal plane (Pcor); orientations of EAC bendings; straight and arc lengths of EAC...
April 1, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28384153/cartilage-formation-in-the-pelvic-skeleton-during-the-embryonic-and-early-fetal-period
#19
Misaki Okumura, Aoi Ishikawa, Tomoki Aoyama, Shigehito Yamada, Chigako Uwabe, Hirohiko Imai, Tetsuya Matsuda, Akio Yoneyama, Tohoru Takeda, Tetsuya Takakuwa
The pelvic skeleton is formed via endochondral ossification. However, it is not known how the normal cartilage is formed before ossification occurs. Furthermore, the overall timeline of cartilage formation and the morphology of the cartilage in the pelvis are unclear. In this study, cartilage formation in the pelvic skeletons of 25 human fetuses (crown-rump length [CRL] = 11.9-75.0 mm) was observed using phase-contrast computed tomography and 7T magnetic resonance imaging. The chondrification center of the ilium, ischium, and pubis first appeared simultaneously at Carnegie stage (CS) 18, was located around the acetabulum, and grew radially in the later stage...
2017: PloS One
https://www.readbyqxmd.com/read/28377644/finite-element-analysis-of-sagittal-balance-in-different-morphotype-forces-and-resulting-strain-in-pelvis-and-spine
#20
REVIEW
Vincenzo Filardi, Portaro Simona, Giorgio Cacciola, Salvatore Bertino, Luigi Soliera, Andrea Barbanera, Alessandro Pisani, Demetrio Milardi, Bramanti Alessia
In humans, vertical posture acquisition caused several changes in bones and muscles which can be assumed as verticalization. Pelvis, femur, and vertebral column gain an extension position which decreases muscular work by paravertebral muscles in the latter. It's widely known that six different morphological categories exist; each category differs from the others by pelvic parameters and vertebral column curvatures. Both values depend on the Pelvic Incidence, calculated as the angle between the axes passing through the rotation centre of the two femur heads and the vertical axis passing through the superior plate of the sacrum...
June 2017: Journal of Orthopaedics
keyword
keyword
85453
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"