scholarly journals Activated Macrophage and Granulomatous Inflammation

Author(s):  
Mehwish Azhar
1955 ◽  
Vol 29 (3) ◽  
pp. 358-369 ◽  
Author(s):  
Alexander Richman ◽  
Herman D. Zeifer ◽  
Asher Winkelstein ◽  
Paul A. Kirsciiner ◽  
Roger D. Steinhardt

1984 ◽  
Vol 52 (03) ◽  
pp. 243-249 ◽  
Author(s):  
S Izaki ◽  
T Hibino ◽  
Y Isozaki ◽  
P S Hsu ◽  
M Izaki ◽  
...  

SummaryPlasminogen activator that is associated with the development of hypersensitivity granulomas (gPA) was partially purified from a saline soluble fraction of murine lepromas elicited in “resistant” mice, C57BL/6N. The gPA was shown to consist of two subspecies (23,000 and 48,000 in molecular weight) with essentially identical enzymologic properties. The gPA was found to be a relatively heat stable weakly alkaline serine proteinase with trypsin-like characteristics in the specificity for synthetic substrates and proteinase inhibitors. It showed a high affinity for H- D-Ile-Pro-Arg-pNA (Km = 1.4 × 10-4 M) H-D-Val-Leu-Lys- pNA (Km = 5.2 × 10-4 M), and L-pyroGlu-Gly-Arg-pNA (Km = 9.3 × 10-4 M). The gPA did not demonstrate antigenic cross reaction with urokinase-type or tissue-type plasminogen activator.Two distinct enzymatic regulators of the gPA were also demonstrated in the saline soluble fraction of the hypersensitivity granulomas. The gPA and its regulation are assumed to be correlated with macrophage activation in the hypersensitivity granulomas


MedAlliance ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 54-60

2 clinical observations of generalized forms of mycobacteriosis in HIV (+) patients complicated by secondary spinal lesion are described. Anamnestic data on the presence of mycobacteriosis of the lungs allowed to suspect a secondary lesion of the spine. Verification of the diagnosis is possible only with bacteriological confirmation, since the histological picture is nonspecific and resembles tuberculous granulomatous inflammation. Treatment of spondylitis caused by non-tuberculous mycobacteria is complex and includes both surgical rehabilitation of the focus and long-term (at least 1 year) antibiotic therapy.


Author(s):  
Oscar Westin ◽  
Abbas Ali Qayyum

Background: Recurrent episodes of isolated pericardial effusion due to tuberculosis, leading to reduced Left Ventricle Ejection Fraction (LVEF), are uncommon. Methods: This is a case report of a previously healthy 32-years old male with tuberculous induced pericardial effusion as isolated manifestation. The only known exposure of tuberculosis was a brother with whom the patient did not have physical contact during the last year. The pericardial effusion repeatedly appeared after being drained a total of three times. Due to recurrent episodes of pericardial effusion, severe thickening of the pericardium, pericardial adherences and increasing affection on the heart, pericardiectomy was ultimately performed. Results: Biochemical examination, chest X-ray, computed tomography of thorax and abdomen and cytology report did not reveal any signs of malignancy, connective tissue disease or other infections including extra-pulmonary/pulmonary tuberculosis. However, the pericardial biopsy was Polymerase Chain Reaction positive (PCR) for tuberculosis DNA and showed granulomatous inflammation with necrosis. After 6 months anti-tuberculous therapy, biochemical parameters, LVEF and the clinical condition of the patient were normalized. Conclusion: Tuberculosis can be difficult to diagnose when it only manifests as pericardial effusion especially if the time for exposure is long before the appearance of symptoms and admission.


2020 ◽  
Vol 13 (12) ◽  
pp. e234366
Author(s):  
Jason Wee ◽  
Salar Sobhi ◽  
Bastiaan De Boer ◽  
Dan Xu

We describe a case of a 61-year-old man with a background of rheumatoid arthritis who presented to the emergency department with a single-reported episode of haemoptysis on the background of an upper respiratory tract infection. A CT scan revealed an incidental 40 mm mass in upper right lobe of the liver abutting the diaphragmatic surface. A subsequent positron emission tomography scan confirmed the mass and raised the possibility of another lesion in the liver raising the suspicion of malignancy. The case was complicated by the inability to perform a fine needle aspiration biopsy due to the mass’ proximity to the diaphragm. After discussion with the patient, it was decided to resect the affected liver segment. Histological analysis of the mass revealed localised necrotising granulomatous inflammation suggestive of a rheumatoid nodule, which is seldom reported in the literature.


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