Relationship Between Mineral Fiber-Induced Pulmonary Tissue Reaction and MIP-2

1997 ◽  
Vol 9 (4) ◽  
pp. 650
Author(s):  
Kyoung Ah Kim ◽  
Young Lim ◽  
Dong Won Lee ◽  
Heung Nam Kim ◽  
Hwang Sin Chang ◽  
...  
Keyword(s):  
Tissue Reaction ◽  
Pulmonary Tissue ◽  
Mineral Fiber

XC Pulmonary Tissue Reaction following Hytrast Bronchograms

1964 ◽  
Vol 73 (4) ◽  
pp. 1095-1107
Author(s):  
S. Donald Greenberg ◽  
Grady L. Hallman ◽  
Harlan J. Spjut
Keyword(s):  
Tissue Reaction ◽  
Pulmonary Tissue

Heterotopic Kidney Tissue in the Lung of a Free-living Common Dolphin (Delphinus delphis)

2005 ◽  
Vol 42 (2) ◽  
pp. 213-214 ◽  
Author(s):  
G. Di Guardo ◽  
G. Marruchella ◽  
M. Affronte ◽  
V. Zappulli ◽  
C. Benazzi
Keyword(s):  
Kidney Tissue ◽  
Lung Parenchyma ◽  
Tissue Reaction ◽  
Point Of View ◽  
Common Dolphin ◽  
Free Living ◽  
Pulmonary Tissue ◽  
Delphinus Delphis ◽  
The North ◽  
Secondary Tissue

A spontaneous case of renal heterotopia involving the lung parenchyma of a free-living, adult, female common dolphin ( Delphinus delphis), which was found stranded alive on the North Adriatic Sea coast of Italy, is reported in this study. The lesion, slightly visible from the macroscopic point of view, had the histologic appearance of a ''foreign tissue island,'' which was poorly demarcated from the surrounding pulmonary tissue. Within such an island, several regularly shaped and apparently mature kidney glomeruli and tubules could be observed, with no evidence of secondary tissue reaction. To the best of our knowledge, this should be the first description of heterotopic kidney tissue occurrence in the lung of any domestic or wild animal species.

Techniques For The Preparation of Tissue Samples Containing Injectable Polymer Microcapsules

1985 ◽  
Vol 43 ◽  
pp. 710-711
Author(s):  
G.E. Visscher ◽  
R. L. Robison ◽  
G. J. Argentieri
Keyword(s):  
Drug Delivery ◽  
Drug Delivery Systems ◽  
Gastrocnemius Muscle ◽  
Degradation Process ◽  
Delivery Systems ◽  
Tissue Reaction ◽  
Electron Microscopic ◽  
Tissue Samples ◽  
Injectable Polymer ◽  
Microscopic Techniques

The use of various bioerodable polymers as drug delivery systems has gained considerable interest in recent years. Among some of the shapes used as delivery systems are films, rods and microcapsules. The work presented here will deal with the techniques we have utilized for the analysis of the tissue reaction to and actual biodegradation of injectable microcapsules. This work has utilized light microscopic (LM), transmission (TEM) and scanning (SEM) electron microscopic techniques. The design of our studies has utilized methodology that would; 1. best characterize the actual degradation process without artifacts introduced by fixation procedures and 2. allow for reproducible results.In our studies, the gastrocnemius muscle of the rat was chosen as the injection site. Prior to the injection of microcapsules the skin above the sites was shaved and tattooed for later recognition and recovery. 1.0 cc syringes were loaded with the desired quantity of microcapsules and the vehicle (0.5% hydroxypropylmethycellulose) drawn up. The syringes were agitated to suspend the microcapsules in the injection vehicle.

Evaluation of gamma thalamotomy for parkinsonian and other tremors: survival of neurons adjacent to the thalamic lesion after gamma thalamotomy

2000 ◽  
Vol 93 (supplement_3) ◽  
pp. 120-127 ◽  
Author(s):  
Chihiro Ohye ◽  
Tohru Shibazaki ◽  
Junji Ishihara ◽  
Jie Zhang
Keyword(s):  
Tissue Reaction ◽  
Vascular Lesions ◽  
Thalamic Lesion ◽  
Mr Images ◽  
Unsatisfactory Result ◽  
Content Type ◽  
Rhythmic Discharge ◽  
Latent Interval ◽  
Fine Print

Object. The effects of gamma thalamotomy for parkinsonian and other kinds of tremor were evaluated. Methods. Thirty-six thalamotomies were performed in 31 patients by using a 4-mm collimator. The maximum dose was 150 Gy in the initial six cases, which was reduced to 130 Gy thereafter. The longest follow-up period was 6 years. The target was determined on T2-weighted and proton magnetic resonance (MR) images. The point chosen was in the lateral-most part of the thalamic ventralis intermedius nucleus. This is in keeping with open thalamotomy as practiced at the authors' institution. In 15 cases, gamma thalamotomy was the first surgical procedure. In other cases, previous therapeutic or vascular lesions were visible to facilitate targeting. Two types of tissue reaction were onserved on MR imaging: a simple oval shape and a complex irregular shape. Neither of these changes affected the clinical course. In the majority of cases, the tremor subsided after a latent interval of approximately 1 year after irradiation. The earliest response was demonstrated at 3 months. In five cases the tremor remained. In four of these cases, a second radiation session was administered. One of these four patients as well as another patient with an unsatisfactory result underwent open thalamotomy with microrecording. In both cases, depth recording adjacent to the necrotic area revealed normal neuronal activity, including the rhythmic discharge of tremor. Minor coagulation was performed and resulted in immediate and complete arrest of the remaining tremor. Conclusions. Gamma thalamotomy for Parkinson's disease seems to be an alternative useful method in selected cases.

Histopathologic Observations of Tissue Reaction to Three Kinds of Membrane Placed on the Bone Defects around Implants.

1997 ◽  
Vol 41 (2) ◽  
pp. 188-194
Author(s):  
Fumitaka Takeshita ◽  
Yasunori Ayukawa ◽  
Shinji Iyama ◽  
Hiroyuki Sone ◽  
Tsuneo Suetsugu
Keyword(s):  
Bone Defects ◽  
Tissue Reaction

Lung Decortication With Argon Plasma Energy for the Treatment of Chronic Pleural Empyema

2021 ◽  
pp. 155698452110111
Author(s):  
Savvas Lampridis ◽  
Sofoklis Mitsos ◽  
David R. Lawrence ◽  
Nikolaos Panagiotopoulos
Keyword(s):  
Energy Source ◽  
Surgical Management ◽  
Argon Plasma ◽  
Pleural Empyema ◽  
Controlled Trials ◽  
Air Leak ◽  
Pulmonary Tissue ◽  
Pure Argon ◽  
Plasma Energy ◽  
Minimal Depth

Lung decortication for the treatment of chronic pleural empyema remains a technically challenging procedure that is associated with bleeding and air leak. The recent advent of pure argon plasma has provided thoracic surgeons with an electrically neutral energy source for dissection and coagulation of pulmonary tissue with minimal depth of necrosis. In this article, we describe the technique of lung decortication with argon plasma energy (PlasmaJet, Plasma Surgical, Roswell, GA, USA) for the treatment of chronic pleural empyema. With appropriate application, the PlasmaJet can facilitate the removal of fibrous cortex with satisfactory hemostasis and aerostasis. Argon plasma energy can potentially be a useful adjunct in lung decortication. Controlled trials are needed to determine its role in the surgical management of advanced pleural empyema.

scholarly journals Renin Angiotensin Aldosterone System Antagonism in 2019 Novel Coronavirus Acute Lung Injury

2021 ◽  
Author(s):  
Davide Ventura ◽  
Amy L Carr ◽  
R Duane Davis ◽  
Scott Silvestry ◽  
Linda Bogar ◽  
...  
Keyword(s):  
Angiotensin Ii ◽  
Angiotensin Ii Receptor ◽  
Pulmonary Tissue ◽  
Renin Angiotensin Aldosterone System ◽  
Angiotensin Converting Enzyme 2 ◽  
Renin Angiotensin ◽  
Receptor Blockers ◽  
Membrane Bound ◽  
Raas Inhibitors ◽  
Novel Coronavirus

Abstract It has been established SARS-CoV-2 uses angiotensin-converting enzyme 2 (ACE2), a membrane-bound regulatory peptide, for host cell entry. Renin-angiotensin-aldosterone system (RAAS) inhibitors have been reported to increase ACE2 in type 2 pneumocytes pulmonary tissue. Controversy exists for the continuation of ACE inhibitors, angiotensin II receptor blockers (ARBs), and mineralocorticoid receptor antagonists (MRAs) in the current pandemic. ACE2 serves as regulatory enzyme in maintaining homeostasis between proinflammatory Angiotensin II and anti-inflammatory Angiotensin 1,7 peptides. Derangements in these peptides are associated with cardiovascular disease and are implicated in the progression of acute respiratory distress syndrome (ARDS). Augmentation of the ACE2/Ang1,7 axis represent a critical target in the supportive management of COVID-19 associated lung disease. Observational data describing the use of RAAS inhibitors in the setting of SARS-CoV-2 have not borne signals of harm to date. However, equipoise persists requiring an analysis of novel agents including recombinant human-ACE2 and existing RAAS inhibitors while balancing ongoing controversies associated with increased coronavirus infectivity and virulence.

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