Modulation of MNC Phenotype and Macrophage Differentiation by the Matrix Elasticity in the Foreign Body Reaction

2020 ◽  
Author(s):  
Josephine Y. Fang ◽  
Zhi Yang ◽  
Wei Hu ◽  
Ba Xuan Hoang ◽  
Bo Han
Keyword(s):  
Foreign Body ◽  
Foreign Body Reaction ◽  
Macrophage Differentiation ◽  
Matrix Elasticity ◽  
The Matrix

Histologic Study of Homograft Cartilages Implanted in the Middle Ear

1988 ◽  
Vol 98 (6) ◽  
pp. 546-551 ◽  
Author(s):  
Etsuo Yamamoto ◽  
Michitaka Iwanaga ◽  
Manabu Fukumoto
Keyword(s):  
Foreign Body ◽  
Connective Tissue ◽  
Middle Ear ◽  
Foreign Body Reaction ◽  
Fibrous Connective Tissue ◽  
Histologic Study ◽  
Second Stage ◽  
The Matrix ◽  
Inflammatory Changes ◽  
Histologic Changes

We examined conditions of the micro-sliced homograft cartilages implanted in the middle ear, implanted cartilages removed at revision surgery or implanted cartilages removed at the second stage of staged tympanoplasty, both macroscopically and histologically. Macroscopically, the appearance and shape of the cartilages remained unchanged, with no evidence of erosion. There was no evidence of any foreign body reaction or rejection phenomenon. In general, no marked histologic changes of the matrix tissues were found, although chondrocytes showed degenerative changes. There was partial absorption of cartilage and replacement by fibrous connective tissue when inflammatory changes occurred in the middle ear. It is concluded that implanted homograft cartilage maintains its stiffness for more than 6 months in a healthy, aerated middle ear and appears to be clinically useful for tympanoplasty.

Foreign Body Reaction to Exogenous Pulmonary Surfactant in an Infant with Hydrops and Cardiomyopathy

1996 ◽  
Vol 16 (1) ◽  
pp. 83-88
Author(s):  
Robert Bendon ◽  
Jim Greenberg ◽  
Sue Heffelfinger
Keyword(s):  
Foreign Body ◽  
Pulmonary Surfactant ◽  
Foreign Body Reaction

scholarly journals Delayed Cerebral Edema: Possible Association with an Inflammatory Foreign Body Reaction

2021 ◽  
pp. 101207
Author(s):  
Sook Young Sim ◽  
Chan-Young Choi
Keyword(s):  
Foreign Body ◽  
Cerebral Edema ◽  
Foreign Body Reaction

scholarly journals Granuloma Caused by Carbon Deposition in the Dermis

2014 ◽  
Vol 2014 ◽  
pp. 1-2
Author(s):  
Rintaro Shibuya ◽  
Yuichiro Endo ◽  
Akihiro Fujisawa ◽  
Miki Tanioka ◽  
Yoshiki Miyachi
Keyword(s):  
Computed Tomography ◽  
Foreign Body ◽  
Malignant Melanoma ◽  
Soft Tissue ◽  
Soft Tissue Sarcoma ◽  
Foreign Body Reaction ◽  
Carbon Deposition ◽  
Case Reports ◽  
Initial Injury ◽  
Pencil Lead

Pencil core granuloma is characterized by a delayed foreign-body reaction against retained fragments of pencil lead. Previous case reports presented pencil core granuloma resembling malignant melanoma, haemangioma, or soft tissue sarcoma. We present a case of pencil core granuloma arising from the palm 25 years after the initial injury. The patient presented a bluish nodule that had been present over 25 years before. The nodule initially measured 5 mm in diameter. However, five years before presentation, it suddenly enlarged to the size of 30 mm during six months. Computed tomography (CT) of the lesion revealed a linear radiopaque structure of 8 mm long with a mass on its distal end. Surgical resection revealed a bluish muddy mass and pencil lead. Histological examination revealed degenerative tissue with calcification surrounded by massive amounts of black granular material in the middle and lower dermis.

Delayed Foreign Body Reaction to Steel Wire Suture Resembling Basal Cell Carcinoma

2011 ◽  
Vol 102 (9) ◽  
pp. 740-742
Author(s):  
J. Neila ◽  
M. Perea ◽  
J.J. Ríos-Martín ◽  
F.M. Camacho
Keyword(s):  
Foreign Body ◽  
Basal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Basal Cell ◽  
Foreign Body Reaction ◽  
Steel Wire ◽  
Wire Suture

Foreign body reaction after cochlear implantation

2011 ◽  
Vol 75 (11) ◽  
pp. 1455-1458 ◽  
Author(s):  
Hye Jin Lim ◽  
Eun-So Lee ◽  
Hun Yi Park ◽  
Keehyun Park ◽  
Yun-Hoon Choung
Keyword(s):  
Foreign Body ◽  
Cochlear Implantation ◽  
Foreign Body Reaction

Material dependent differences in inflammatory gene expression by giant cells during the foreign body reaction

2007 ◽  
Vol 83A (3) ◽  
pp. 879-886 ◽  
Author(s):  
D.T. Luttikhuizen ◽  
P.Y.W. Dankers ◽  
M.C. Harmsen ◽  
M.J.A. van Luyn
Keyword(s):  
Gene Expression ◽  
Foreign Body ◽  
Foreign Body Reaction ◽  
Giant Cells ◽  
Inflammatory Gene Expression ◽  
Inflammatory Gene

FORC analysis of magnetically soft microparticles embedded in a polymeric elastic environment

2022 ◽  
Author(s):  
Dmitry Yu Borin ◽  
Mikhail V Vaganov
Keyword(s):  
Particle Concentration ◽  
Magnetic Hysteresis ◽  
Magnetic Response ◽  
Soft Matrix ◽  
First Order ◽  
Matrix Elasticity ◽  
Intrinsic Coercivity ◽  
The Matrix ◽  
Soft Particles ◽  
Elastomer Composites

Abstract First-order reversal curve (FORC) analysis allows one to investigate composite magnetic materials by decomposing the magnetic response of a whole sample into individual responses of the elementary objects comprising the sample. In this work, we apply this technique to analysing silicone elastomer composites reinforced with ferromagnetic microparticles possessing low intrinsic coercivity. Even though the material of such particles does not demonstrate significant magnetic hysteresis, the soft matrix of the elastomers allows for the translational mobility of the particles and enables their magnetomechanical hysteresis which renders into a wasp-waisted major magnetization loop of the whole sample. It is demonstrated that the FORC diagrams of the composites contain characteristic wing features arising from the collective hysteretic magnetization of the magnetically soft particles. The influence of the matrix elasticity and particle concentration on the shape of the wing feature is investigated, and an approach to interpreting experimental FORC diagrams of the magnetically soft magnetoactive elastomers is proposed. The experimental data are in qualitative agreement with the results of the simulation of the particle magnetization process obtained using a model comprised of two magnetically soft particles embedded in an elastic environment.

Foreign body reaction of the brain: Enzyme-histochemical study in dogs

Neurology ◽  
1967 ◽  
Vol 17 (4) ◽  
pp. 337-337 ◽  
Author(s):  
T. Yanagihara ◽  
N. P. Goldstein ◽  
H. J. Svien ◽  
R. C. Bahn
Keyword(s):  
Foreign Body ◽  
Foreign Body Reaction ◽  
Histochemical Study ◽  
The Brain

scholarly journals Delayed Foreign Body Reaction Caused by Bioabsorbable Plates Used for Maxillofacial Fractures

2016 ◽  
Vol 43 (1) ◽  
pp. 40-45 ◽  
Author(s):  
Hong Bae Jeon ◽  
Dong Hee Kang ◽  
Ja Hea Gu ◽  
Sang Ah Oh
Keyword(s):  
Foreign Body ◽  
Foreign Body Reaction ◽  
Maxillofacial Fractures
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