Abstract：
:The effect of infection by prototypes from the three major species of Leishmania on the oxidative burst of human mononuclear phagocytes in culture was examined. The presence of intracellular parasites of the three species, L.major, L.donovani and L.mexicana decreased hydrogen peroxide (H2O2) and superoxide anion (O2-) production. This was particularly apparent when infected cells were compared to control monocytes following treatment with IFN-gamma. Nitroblue tetrazolium (NBT) reduction by monocytes was also decreased in infected cells. This morphological analysis of infected monolayers clearly showed that infected monocytes were incapable of reducing the dye as compared to uninfected cells. Decrease in NBT positive cells and production of H2O2 and O2- was related to the degree of infection of the monocyte monolayers. These results suggest that the presence of intracellular Leishmania amastigotes in mononuclear phagocytes decreases the oxidative burst and may contribute to parasite survival. Failure of phagocytes from patients with chronic granulomatous disease to kill these intracellular parasites also emphasized the importance of the oxidative burst for this function. Nevertheless, the consistent increase in leishmaniacidal effect attained after IFN-gamma treatment of the monocyte monolayers indicates that other non-oxidative mechanisms induced by this cytokine are also important in the killing of these intracellular parasites.
journal_name
Int J Exp Patholjournal_title
International journal of experimental pathologyauthors
Passwell JH,Shor R,Smolen J,Jaffe CLsubject
Has Abstractpub_date
1994-08-01 00:00:00pages
277-84issue
4eissn
0959-9673issn
1365-2613journal_volume
75pub_type
杂志文章abstract：:Lysyl oxidase, which cross-links collagen and elastin, was obtained from chick embryo bone and cartilage and its substrate, elastin, from aorta. The enzyme was studied using an improved assay which enabled the stability of the substrate to be monitored. The enzyme was fully inhibited in vivo by beta-aminopropionitrile...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：
更新日期：1992-10-01 00:00:00
abstract：:Interstitial fibrosis, associated with extensive accumulation of extracellular matrix constituents in the cortical interstitium, is directly correlated to progression of renal disease. The earliest histological marker of this progression is the accumulation in the interstitium of fibroblasts with the phenotypic appear...
journal_title：International journal of experimental pathology
pub_type： 杂志文章,评审
doi：10.1111/j.1365-2613.2011.00764.x
更新日期：2011-06-01 00:00:00
abstract：:Tumour growth is angiogenesis dependent. Thrombosis and thromboembolism are very common in cancer patients. These patients are often treated with heparin as an anti-coagulant. Many tumour angiogens, including VEGF165, and endogenous anti-angiogenesis factors bind heparin tightly. Using the non-surgical mesenteric-wind...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1046/j.1365-2613.2000.00150.x
更新日期：2000-06-01 00:00:00
abstract：:Athymic (nude) mice were experimentally infected with Mycobacterium leprae via the alimentary and respiratory tracts and through the skin. Animals were allowed to inhale aerosols of M. leprae or had bacilli instilled into the nostrils or directly into the lungs. Others were fed M. leprae by gastric tube or had bacilli...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：
更新日期：1990-10-01 00:00:00
abstract：:This study tested the hypothesis that different doses of nandrolone decanoate (ND) will cause changes in the estrous cycle and ovarian tissue of adult rats; and investigated the duration of the recovery period that is sufficient to restore the damage in the animals treated with different doses. Wistar rats were treate...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/iep.12144
更新日期：2015-10-01 00:00:00
abstract：:The Fell-Muir Award requires the recipient to deliver a lecture and a review manuscript which provides a personal overview of significant scientific developments in the field of matrix biology over the period of the recipient's career. In this context, this review considers the collagen family of structural proteins a...
journal_title：International journal of experimental pathology
pub_type： 杂志文章,评审
doi：10.1111/j.1365-2613.2007.00537.x
更新日期：2007-08-01 00:00:00
abstract：:Over the past 40 years there have been giant steps forward in our understanding of cellular and molecular biology that have given us the framework by which to understand tissue organization and tissue function on a range of scales. However, although the progress has been great, the more we have discovered, the more we...
journal_title：International journal of experimental pathology
pub_type：
doi：10.1111/j.1365-2613.2010.00719.x
更新日期：2010-06-01 00:00:00
abstract：:The formation of new blood vessels, angiogenesis, is an important event in inflammation, wound healing and tumour growth. Mediators produced by various cells when exposed to endotoxin include cytokines (tumour necrosis factor, interleukins 1 and 6, and basic fibroblast growth factor) which, it has been suggested, stim...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：
更新日期：1994-06-01 00:00:00
abstract：:We determined the feasibility of producing protoporphyric hepatopathy in unrestrained rats by infusing protoporphyrin into their portal circulation via chronic indwelling catheters. Sprague-Dawley rats, 200-300 g, received single (8.5-27.8 mumol) or multiple (64.1-208.7 mumol) infusions of protoporphyrin over 3-240 h....
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：
更新日期：1992-10-01 00:00:00
abstract：:Low-dose chemotherapy drugs can suppress tumours by restraining tumour vessel growth and preventing the repair of damaged vascular endothelial cells. Cisplatin is a broad-spectrum, cell cycle-non-specific drug, but has serious side effects if used at high doses. There have been few reports on the anti-angiogenic effec...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2009.00684.x
更新日期：2010-02-01 00:00:00
abstract：:In this study, viruria following Japanese encephalitis virus (JEV) infection in mice has been shown to appear earlier in pregnant than in normal mice with proteinuria and haematuria. This was related to the production of splenic macrophage derived neutrophil chemotactic factor (MDF) following JEV infection. Intravenou...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：
更新日期：1995-04-01 00:00:00
abstract：:Leprosy is a disease consisting of a spectrum of clinical, bacteriological, histopathological and immunological manifestations. Tuberculoid leprosy is frequently recognized as the benign polar form of the disease, while lepromatous leprosy is regarded as the malignant form. The different forms of leprosy depend on the...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/iep.12108
更新日期：2015-02-01 00:00:00
abstract：:The aim of this study was to evaluate the use of flaxseed in animals subjected to ethanol-induced hepatotoxicity. Twenty-four male rats were divided into four groups (n = 6): control group (CG) which received a control diet and water ad libitum; flaxseed group (FG) which received control diet with an addition of 25% f...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/iep.12288
更新日期：2018-10-01 00:00:00
abstract：:The effect of oestradiol on the intact and castrated adult gerbil prostate was evaluated by focussing on stromal and epithelial disorders, and hormonal receptor immunoreactivity. The experimental animals were studied by histological, histochemical and immunohistochemical techniques, morphometric-stereological analysis...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2007.00559.x
更新日期：2008-02-01 00:00:00
abstract：:The pathogenesis of dengue haemorrhagic fever (DHF) is incompletely understood but it has been suggested that various cytokines may have a role in the process. In this study the profile of the cytokine Transforming Growth Factor-beta 1 (TGF-beta1) was investigated in the sera of 79 patients with various grades of deng...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1046/j.1365-2613.1999.00107.x
更新日期：1999-06-01 00:00:00
abstract：:The objective of this study was to assess whether ascorbic acid (AA), an intracellular anti-oxidant critical for neuronal protection, when added to artificial cerebrospinal fluid (ACSF), is able to protect hippocampal (HPC) formation slice preparations from ageing. In this research, the micro-electroencephalographic (...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2012.00838.x
更新日期：2012-12-01 00:00:00
abstract：:Long-term intragastric administration of the antiepileptic drug sodium valproate (Vuprol Polfa) to rats for 1, 3, 6, 9 and 12 months, once daily at the effective dose of 200 mg/kg body weight showed morphological evidence of encephalopathy, manifested by numerous nonspecific changes within Purkinje cell perikarya and ...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1046/j.1365-2613.2001.00206.x
更新日期：2001-12-01 00:00:00
abstract：:Bronchial subepithelial fibrosis is an histological characteristic of asthma. Cytokines and other mediators, such as PDGF-BB, TGF-beta1 and ET-1 found in the asthmatic submucosa can potentially activate a repair process that leads to fibroblast proliferation and collagen synthesis. The mechanisms of modulation of the ...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1046/j.1365-2613.2000.00173.x
更新日期：2000-12-01 00:00:00
abstract：:Salivary glands of cat were examined from 1 to 42 days following parasympathectomy and compared with contralateral normal control glands. Microliths were detected by light microscopy in none of 11 parotid, 31 out of 41 submandibular and four out of 22 sublingual glands following parasympathectomy, and one out of 19 pa...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：
更新日期：1993-02-01 00:00:00
abstract：:Small intestinal mucosal T cell activation results in villous atrophy and crypt hyperplasia. There is conflicting evidence as to whether a Th1 IFN-gamma response may be involved. Using a murine intestinal transplant model of T cell-mediated enteropathy we aimed to study the role of IFN-gamma on the development of vill...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1046/j.1365-2613.2003.00342.x
更新日期：2003-06-01 00:00:00
abstract：:Pterygium is a surface ocular lesion that is associated with chronic UV exposure. The primary effect is a solar actinic elastosis within the stroma. All the other changes are secondary. Pterygium is characterized by proliferation, inflammatory infiltrates, fibrosis, angiogenesis and extracellular matrix breakdown. The...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2009.00665.x
更新日期：2009-12-01 00:00:00
abstract：:The objectives of this work were to study some pathological aspects of kidneys obtained from dogs naturally infected with Leishmania infantum and from dogs experimentally infected with two different strains of L infantum with special emphasis on fibrotic process. Seventy eight specimens of paraffin-embedded kidney fra...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/iep.12321
更新日期：2019-08-01 00:00:00
abstract：:The characterization of mice models of portal hypertension (PHT) is lacking in the literature. Therefore, the aim of the present study was to make a histological approach during development of PHT in two models of cirrhosis with PHT compared with one model of isolated PHT. The model of isolated PHT was developed by pa...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2008.00597.x
更新日期：2008-08-01 00:00:00
abstract：:Ischaemic-reperfusion injury as a model of acute renal failure (ARF) results in increased macromolecular permeability, tubular obstruction, and renal oedema. To investigate the role for coagulation in this model, anticoagulated and saline-pretreated rats were subjected to 60 min unilateral renal artery occlusion (RAO)...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1046/j.1365-2613.1998.00055.x
更新日期：1998-02-01 00:00:00
abstract：:Minaçu virus was isolated from Ochlerotatus scapularis (Diptera: Culicidae) in Minaçu, Goiás State, Brazil, in 1996. In attempting characterization of virus serological (hemagluttination inhibition, HI; indirect immunofluorescence assay, IFA), physicochemical [test for deoxycholate acid (DCA) sensitivity; polyacrylami...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2006.00516.x
更新日期：2007-02-01 00:00:00
abstract：:In chronic administration of sodium valproate to rats, significant disorders of structural integrity of the hippocampal gyrus and the neocortex of the temporal lobe, observed in the last two stages of the experiment (after 9 and 12 months), coexisted with increased number of microglial cells and, especially after 12 m...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.0959-9673.2005.00417.x
更新日期：2005-04-01 00:00:00
abstract：:Blister formation and skin damage can be induced by BaP1, a haemorrhagic metalloproteinase from the venom of the snake Bothrops asper. Pathological changes in the skin were investigated after intramuscular injections of Bothrops asper haemorrhagic metalloproteinase BaP1. Blisters developed within the first hour, with ...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：
更新日期：1998-08-01 00:00:00
abstract：:The degenerative and regenerative changes in murine skeletal muscle after injection of Bothrops asper venom were studied by histological, lectin histochemical and immunocytochemical techniques. According to our observations, the process was divided into four main stages: (a) During the first 3 days prominent degenerat...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：
更新日期：1991-04-01 00:00:00
abstract：:Administration of mercuric chloride (HgCl(2)) to Brown Norway rats causes Th2-dominated autoimmunity with raised immunoglobulin E concentrations and gut vasculitis, both of which are T-cell dependent, peak at 14 days after starting HgCl(2) and then spontaneously resolve. If animals are re-challenged with HgCl(2) 6 wee...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.0959-9673.2004.00382.x
更新日期：2004-06-01 00:00:00
abstract：:Hydroxymethylnitrofurazone (NFOH) is a nitrofurazone prodrug effective in vivo during acute infections, and it has less hepatotoxicity effect than the standard drug benznidazole (BZN) which has been used during short- and long-term treatment. In the present study, we induced the indeterminate form of Chagas disease in...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/iep.12289
更新日期：2018-10-01 00:00:00
