keyword
MENU ▼
Read by QxMD icon Read
search

Cartilaginous morphology

keyword
https://www.readbyqxmd.com/read/29653160/a-computational-model-for-the-joint-onset-and-development
#1
Kalenia M Márquez-Flórez, James R Monaghan, Sandra J Shefelbine, Angélica Ramirez-Martínez, Diego A Garzón-Alvarado
Joints connect the skeletal components and enable movement. The appearance and development of articulations is due to different genetic, biochemical, and mechanical factors. In the embryonic stage, controlled biochemical processes are critical for organized growth. We developed a computational model, which predicts the appearance, location, and development of joints in the embryonic stage. Biochemical events are modeled with reaction diffusion equations with generic molecules representing molecules that 1) determine the site where the articulation will appear, 2) promote proliferation, and matrix synthesis, and 3) define articular cartilage...
April 10, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29624714/two-cases-of-discrete-adenoid-pseudogland-formation-within-benign-intradermal-melanocytic-nevi
#2
Jonathan C Banta, Justin P Bandino
We report two cases of benign intradermal melanocytic nevi with discrete glandular elements and mucin deposition engendering a diagnostic dilemma. The preliminary differential included entrapment of adnexal structures, collision with an adnexal neoplasm such as adenoid cystic carcinoma, or metastatic adenocarcinoma. A colloidal iron special stain confirmed the deposition of mucin, however a pankeratin AE1/AE3 immunohistochemical cocktail was surprisingly negative. Closer cytological examination of the discrete "glands" combined with nearby pseudoangiomatous (almost Kaposiform) change hinted at melanocytic origin, and was confirmed with a positive MART-1 immunohistochemical stain...
April 6, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29621303/time-dependent-regulation-of-morphological-changes-and-cartilage-differentiation-markers-in-the-mouse-pubic-symphysis-during-pregnancy-and-postpartum-recovery
#3
Bianca Gazieri Castelucci, Sílvio Roberto Consonni, Viviane Souza Rosa, Lucimara Aparecida Sensiate, Paula Cristina Rugno Delatti, Lúcia Elvira Alvares, Paulo Pinto Joazeiro
Animal models commonly serve as a bridge between in vitro experiments and clinical applications; however, few physiological processes in adult animals are sufficient to serve as proof-of-concept models for cartilage regeneration. Intriguingly, some rodents, such as young adult mice, undergo physiological connective tissue modifications to birth canal elements such as the pubic symphysis during pregnancy; therefore, we investigated whether the differential expression of cartilage differentiation markers is associated with cartilaginous tissue morphological modifications during these changes...
2018: PloS One
https://www.readbyqxmd.com/read/29611161/the-triticeous-cartilage-redefining-of-morphology-prevalence-and-function
#4
Alper Vatansever, Deniz Demiryürek, İlkan Tatar, Burçe Özgen
Triticeous cartilage is a small cartilaginous component of the laryngeal skeleton. This cartilage, located in posterior end of the thyrohyoid ligament, presents in different shapes. Radiological studies indicate clinical and anatomical importance of the triticeous cartilage but these studies have limited information due to inadequate inspection method. Computed tomographic angiography is able to evaluate the triticeous cartilage with using 3 dimensional images in more detail. The aim of this study is describing prevalence and morphological properties of the triticeous cartilage...
April 3, 2018: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29610705/osteology-of-batrachuperus-londongensis-urodela-hynobiidae-study-of-bony-anatomy-of-a-facultatively-neotenic-salamander-from-mount-emei-sichuan-province-china
#5
Jian-Ping Jiang, Jia Jia, Meihua Zhang, Ke-Qin Gao
The Longdong Stream Salamander Batrachuperus londongensis , living in a mountain stream environment at Mt. Emei in Sichuan Province, China, represents a rare species that is facultatively neotenic in the family Hynobiidae. Although the species has been known to science for some 40 years since its initial discovery in the late 1970s, anatomical details of its osteology remain poorly understood and developmental information is still lacking for the species. This study (1) provides a detailed osteological account of B...
2018: PeerJ
https://www.readbyqxmd.com/read/29608574/healing-potentials-of-polymethylmethacrylate-bone-cement-combined-with-platelet-gel-in-the-critical-sized-radial-bone-defect-of-rats
#6
Ahmad Oryan, Soodeh Alidadi, Amin Bigham-Sadegh, Ali Moshiri
Polymethylmethacrylate (PMMA) is the most commonly used filler material that lacks biological properties and osteoconductivity or osteoinductivity. Platelet gel (PG) is a typical source of growth factors, cytokines and molecules efficient for bone formation and remodeling. The aim of this study was to evaluate bone healing and regeneration of bone defect in rat model by combining PMMA with PG. A total of 50 defects were created in the diaphysis of the radii of 25 male Sprague-Dawley rats. These defects were randomly divided into five groups (n = 10 defects for each group) and treated by autograft, plain PMMA, PG and PMMA-PG or left untreated...
2018: PloS One
https://www.readbyqxmd.com/read/29593505/the-shark-basal-hypothalamus-molecular-prosomeric-subdivisions-and-evolutionary-trends
#7
Gabriel N Santos-Durán, Susana Ferreiro-Galve, Arnaud Menuet, Sylvie Mazan, Isabel Rodríguez-Moldes, Eva Candal
The hypothalamus is a key integrative center of the vertebrate brain. To better understand its ancestral morphological organization and evolution, we previously analyzed the segmental organization of alar subdivisions in the catshark Scyliorhinus canicula , a cartilaginous fish and thus a basal representative of gnathostomes (jawed vertebrates). With the same aim, we deepen here in the segmental organization of the catshark basal hypothalamus by revisiting previous data on ScOtp, ScDlx2/5, ScNkx2.1, ScShh expression and Shh immunoreactivity jointly with new data on ScLhx5, ScEmx2, ScLmx1b, ScPitx2, ScPitx3a, ScFoxa1, ScFoxa2 and ScNeurog2 expression and proliferating cell nuclear antigen (PCNA) immunoreactivity...
2018: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/29589227/morphological-reflections-of-evolutionary-adaptations-in-the-tongue-of-the-white-headed-duck
#8
Ghasem Akbari, Belal Hassanzadeh, Mohammad Sadegh Madadi, Mohammad Babaei
During an organism's evolution, functional adaptations help species to become better suited to their ecological niches. From the morphological aspect, these adaptations are reflected in the anatomical specializations of different organs. Specializations of the lingual organ is a critical adaptation of birds, such as the white-headed duck (Oxyura leucocephala), that enables their nutritional requirements to be met. For optimal use of the available food resources, the white-headed duck utilizes three methods of food collection, namely pecking, grazing and filter-feeding...
March 27, 2018: Anatomical Science International
https://www.readbyqxmd.com/read/29575373/the-anatomical-components-of-the-cardiac-outflow-tract-of-chondrichthyans-and-actinopterygians
#9
Miguel Lorenzale, Miguel A López-Unzu, Cristina Rodríguez, Borja Fernández, Ana C Durán, Valentín Sans-Coma
The outflow tract of the fish heart is the segment interposed between the ventricle and the ventral aorta. It holds the valves that prevent blood backflow from the gill vasculature to the ventricle. The anatomical composition, histological structure and evolutionary changes in the fish cardiac outflow tract have been under discussion for nearly two centuries and are still subject to debate. This paper offers a brief historical review of the main conceptions about the cardiac outflow tract components of chondrichthyans (cartilaginous fish) and actinopterygians (ray-finned fish) which have been put forward since the beginning of the nineteenth century up to the current day...
March 25, 2018: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/29464321/origin-and-development-of-septoclasts-in-endochondral-ossification-of-mice
#10
Yasuhiko Bando, Hide Sakashita, Fuyoko Taira, Genki Miyake, Yudai Ogasawara, Koji Sakiyama, Yuji Owada, Osamu Amano
Septoclasts are mononuclear spindle-shaped phagocytes with their long processes in uncalcified cartilage matrices and locate adjacent to the capillary endothelium at the chondro-osseous junction of the growth plate. We have previously revealed a selective expression of epidermal-type fatty acid-binding protein (E-FABP/FABP5) in septoclasts. Although, pericytes are known to distribute along capillaries and directly surround their endothelial cells in a situation similar to septoclasts, no clear evidence is available on the relationship between septoclasts and pericytes...
February 20, 2018: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/29447475/the-divergent-genomes-of-teleosts
#11
Vydianathan Ravi, Byrappa Venkatesh
Boasting nearly 30,000 species, teleosts account for half of all extant vertebrates and approximately 98% of all ray-finned fish species (Actinopterygii). Teleosts are also the largest and most diverse group of vertebrates, exhibiting an astonishing level of morphological, physiological, and behavioral diversity. Previous studies had indicated that the teleost lineage has experienced an additional whole-genome duplication event. Recent comparative genomic analyses of teleosts and other bony vertebrates using spotted gar (a nonteleost ray-finned fish) and elephant shark (a cartilaginous fish) as outgroups have revealed several divergent features of teleost genomes...
February 15, 2018: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/29434299/quantitative-morphometry-for-osteochondral-tissues-using-second-harmonic-generation-microscopy-and-image-texture-information
#12
Takashi Saitou, Hiroshi Kiyomatsu, Takeshi Imamura
Osteoarthritis (OA) is a chronic joint disorder involving degeneration of articular cartilage and subchondral bone in joints. We previously established a second harmonic generation (SHG) imaging technique for evaluating degenerative changes to articular cartilage in an OA mouse model. SHG imaging, an optical label-free technique, enabled observation of collagen fibrils, and characterized critical changes in the collagenous patterns of the joints. However, it still remains to be determined how morphological changes in the organization of tissue collagen fibrils should be quantified...
February 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29432864/intestinal-granular-cells-of-a-cartilaginous-fish-thornback-ray-raja-clavata-morphological-characterization-and-expression-of-different-molecules
#13
B Sayyaf Dezfuli, M Manera, G Bosi, P Merella, J A DePasquale, L Giari
This investigation aims to fill gaps in our understanding of the intestinal immune cells of elasmobranchs. Whole digestive tracts of fifteen thornback ray Raja clavata were provided by a trawl fleet from the Gulf of Asinara (Sardinia, western Mediterranean Sea). Histochemical, immunohistochemical and ultrastructural observations were conducted on the spiral intestine. Three types of granular cells were identified; type I in epithelium, types II and III in lamina propria-submucosa, with each of them containing cytoplasmic granules with different ultrastructural characteristics...
February 9, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29426958/epiphyseal-hyperplasia-caused-by-an-ectopic-ossification-center-of-the-distal-tibia-presentation-of-a-pediatric-case-with-13-years-of-radiological-surveillance
#14
Susanne Scheipl, Stefan Tauber, Marko Bergovec, Andreas Leithner, Gerhard Ranner
Herein, we report the case of a 4-year-old boy, who presented with a cortical lytic lesion of his distal tibia. It was located eccentrically, measured 2 cm in its craniocaudal diameter, and was associated with a lamella-like soft-tissue mineralization that resembled a periosteal reaction. Thus, the lesion's radiographic features were initially suggestive of an aggressive disease. However, further imaging revealed the lesion to be of cartilaginous origin and to extend into the metaphysis, thus creating the aspect of hyperplastic epiphyseal cartilage...
February 9, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29338790/morphometric-characterisation-of-human-tracheas-focus-on-cartilaginous-ring-variation
#15
Y Premakumar, M F Griffin, M Szarko
PURPOSE: Details regarding tracheal anatomy are currently lacking, with existing literature focussing mainly on the cricoid-tracheal region or the carina. External gross anatomy and internal morphology throughout the entire trachea is important for normal physiological functioning and various clinical applications such as designs for tracheal implants or endotracheal devices. OBJECTIVE: To determine quantitative and qualitative characteristics of gross tracheal and individual tracheal ring anatomy...
January 16, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29322335/mechanobiological-modeling-of-endochondral-ossification-an-experimental-and-computational-analysis
#16
J J Vaca-González, M Moncayo-Donoso, J M Guevara, Y Hata, S J Shefelbine, D A Garzón-Alvarado
Long bone formation starts early during embryonic development through a process known as endochondral ossification. This is a highly regulated mechanism that involves several mechanical and biochemical factors. Because long bone development is an extremely complex process, it is unclear how biochemical regulation is affected when dynamic loads are applied, and also how the combination of mechanical and biochemical factors affect the shape acquired by the bone during early development. In this study, we develop a mechanobiological model combining: (1) a reaction-diffusion system to describe the biochemical process and (2) a poroelastic model to determine the stresses and fluid flow due to loading...
January 10, 2018: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/29322251/rhinoplasty-lessons-from-errors-from-anatomy-and-experience-to-the-concept-of-sequential-primary-rhinoplasty
#17
REVIEW
Y Saban
BACKGROUND: Reshaping the nose can be achieved following 3 main concepts: preservation and reshaping of normal anatomy, resection of nasal deformities, reconstruction of nasal framework. Time, experience and nasal anatomic knowledge are keys to understand nasal biomechanics. OBJECTIVES: To describe how experience and morphodynamic anatomy lead to a new concept of sequential primary rhinoplasty, resulting in reducing revision rhinoplasties. METHODS: Through 36 years' experience in different rhinoplasty procedures, 25 years in personal anatomic studies of the nose and reviewing the last 15 years including 600 patients who underwent new concepts in primary rhinoplasty out of 1200 patients operated during this period, the author analyzes how nasal anatomic layers, surgical approaches, and morphological effect of the time interact to modify the aesthetic results according to current rhinoplasty concepts...
January 2018: HNO
https://www.readbyqxmd.com/read/29301464/intervertebral-disc-degeneration-in-warmblood-horses-morphology-grading-and-distribution-of-lesions
#18
Wilhelmina Bergmann, Niklas Bergknut, Stefanie Veraa, Andrea Gröne, Hans Vernooij, Inge D Wijnberg, Willem Back, Guy C M Grinwis
Equine intervertebral disc degeneration is thought to be rare and of limited clinical relevance, although research is lacking. To objectively assess pathological changes of the equine intervertebral disc and their clinical relevance, description of the normal morphology and a practical, biologically credible grading scheme are needed. The objectives of this study are to describe the gross and histological appearance of the equine intervertebral discs and to propose a grading scheme for macroscopic degeneration...
January 1, 2018: Veterinary Pathology
https://www.readbyqxmd.com/read/29238978/use-of-autologous-adipose-derived-mesenchymal-stem-cells-for-creation-of-laryngeal-cartilage
#19
Hongji Zhang, Sherry Voytik-Harbin, Sarah Brookes, Lujuan Zhang, Joseph Wallace, Noah Parker, Stacey Halum
OBJECTIVES/HYPOTHESIS: Adipose-derived mesenchymal stem cells (ASCs) are an exciting potential cell source for tissue engineering because cells can be derived from the simple excision of autologous fat. This study introduces a novel approach for tissue-engineering cartilage from ASCs and a customized collagen oligomer solution, and demonstrates that the resultant cartilage can be used for laryngeal cartilage reconstruction in an animal model. STUDY DESIGN: Basic science experimental design...
December 14, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29205898/effects-of-oral-glucosamine-hydrochloride-and-mucopolysaccharide-protein-in-a-rabbit-model-of-osteoarthritis
#20
Da-Hee Jeong, H M Arif Ullah, Moon-Jung Goo, Soong-Gu Ghim, Il-Hwa Hong, Ah-Young Kim, Sun-Min Jeon, Myung-Sook Choi, Ahmed K Elfadl, Myung-Jin Chung, Eun-Joo Lee, Yong D Kim, Jun-Hyung Kim, Shin-Yoon Kim, Kyu-Shik Jeong
AIM: The aim was to study whether oral glucosamine hydrochloride (GlcN.HCl) or mucopolysaccharide protein (MucoP) has a structure-modifying effect on an anterior cruciate ligament transection (ACLT) rabbit model of osteoarthritis (OA). METHODS: OA was surgically induced in the right knees of rabbits by transection of the ACLT. The left knees served as a sham-operated control. The animals were divided into four groups (n = 6 each): negative control (phosphate buffered saline, orally), positive control (oral celecoxib 10 mg/kg body weight/day), GlcN...
March 2018: International Journal of Rheumatic Diseases
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"