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 treated with ND at doses of 1.87, 3.75, 7.5 and 15 mg/kg body weight, or received mineral oil (control group) for 15 days, subcutaneously. All animals were divided into three groups according to the treatment periods: (i) ND treatment for 15 days; (ii) ND treatment followed by a 30-day recovery; and (iii) ND treatment followed by a 60-day recovery. Estrous cycle was monitored daily, and at the end of each period, the animals were euthanized for histopathological analysis. During ND treatment and after 30-day recovery, all animals exhibited persistent diestrus. After a 60-day recovery, persistent diestrus was only maintained in the group that had received the highest dose. Ovarian weight was decreased significantly after the 30-day recovery, regardless of ND doses, compared with the control group. There was a reduction (P < 0.05) in the number of corpora lutea and antral and growing follicles, in contrast to an increase (P < 0.05) in atretic follicles in a dose- and time-dependent manner. Remarkable histopathological changes occurred in the ovaries of all ND-treated groups. In conclusion, the different doses of ND caused changes in the estrous cycle and ovarian tissue of rats, and recovery periods (30 and 60 days) were insufficient to completely restore the damage in the animals treated with the highest dose.
journal_name
Int J Exp Patholjournal_title
International journal of experimental pathologyauthors
Simão VA,Berloffa Belardin L,Araújo Leite GA,de Almeida Chuffa LG,Camargo ICdoi
10.1111/iep.12144subject
Has Abstractpub_date
2015-10-01 00:00:00pages
338-49issue
5eissn
0959-9673issn
1365-2613journal_volume
96pub_type
杂志文章abstract：:(Pre)neoplastic lesions in livers of rats induced by diethylnitrosamine are characterized by elevated activity of the first irreversible enzyme of the oxidative branch of the pentose phosphate pathway (PPP), glucose-6-phosphate dehydrogenase (G6PD), for production of NADPH. In the present study, the activity of G6PD, ...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2008.00582.x
更新日期：2008-08-01 00:00:00
abstract：:This study was conducted to evaluate the adverse effects of the anabolic steroid, boldenone undecylenate (BOL) on reproductive functions of male rabbits. Thirty white New Zealand mature male rabbits were divided into three groups (10 rabbits each). Group A rabbits served as a control group. Group B rabbits received 4....
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2012.00814.x
更新日期：2012-06-01 00:00:00
abstract：:Pulmonary granuloma formation and fibrosis were experimentally induced in Sprague-Dawley strain rats by Angiostrongylus cantonensis. Increased protein levels of matrix metalloproteinase (MMP)-2, -9, -13 and the imbalance between these enzymes and metalloproteinase inhibitors, tissue inhibitors of MMPs (TIMP-1 and -2),...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2007.00554.x
更新日期：2007-12-01 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：:p23 is a cochaperone of heat shock protein 90 and also interacts functionally with numerous steroid receptors and kinases. However, the in vivo roles of p23 remain unclear. To explore its in vivo function, we generated the transgenic (TG) mice ubiquitously overexpressing p23. The p23 TG mice spontaneously developed ki...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2011.00762.x
更新日期：2011-08-01 00:00:00
abstract：:Intratracheal instillation (IT) of bleomycin is a widely used experimental model for lung fibrosis. In this study we describe the time-course of bleomycin-induced lung fibrosis in mice using computer-assisted morphometry. C57Bl/6J mice were treated with a single IT dose of bleomycin or control saline. Animals were kil...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1046/j.1365-2613.2002.00220.x
更新日期：2002-06-01 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：:The Meriones unguiculatus (Mongolian) gerbil has demonstrated significant prostatic responses to hormonal treatments, and to drugs against human prostatic hyperplasia. Spontaneous neoplasia develops in the older animals. Thirty gerbils (age 18 months) were divided into non-affected and prostatic lesion bearers and the...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2007.00550.x
更新日期：2008-02-01 00:00:00
abstract：:Two families of the Metzincin clan of metalloproteinases, the matrix metalloproteinases and the disintegrin metalloproteinases have attracted much attention as important effectors of cellular interactions with their environment. They appear to play significant roles in the modulation of components of the extracellular...
journal_title：International journal of experimental pathology
pub_type：
doi：10.1111/j.1365-2613.2010.00736.x
更新日期：2010-08-01 00:00:00
abstract：:The α2-adrenoceptors regulate the sympathetic nervous system, controlling presynaptic catecholamine release. However, the role of the α2-adrenoceptors in cutaneous wound healing is poorly understood. Mice lacking both the α2A/α2C-adrenoceptors were used to evaluate the participation of the α2-adrenoceptor during cutan...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/iep.12093
更新日期：2014-10-01 00:00:00
abstract：:Progress in understanding the pathophysiology of abdominal aortic aneurysms (AAA) is dependent in part on the development and application of effective animal models that recapitulate key aspects of the disease. The objective was to produce an experimental model of AAA in rats by combining two potential causes of metal...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2010.00746.x
更新日期：2011-02-01 00:00:00
abstract：:Plasmodium berghei ANKA (PbA) infection in susceptible inbred mouse strains is the most commonly used experimental model to study pathogenesis of cerebral malaria (CM). Indeed, many concepts on mechanisms related to this complication have arisen from works using this model. Although inbred strains present several adva...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2008.00622.x
更新日期：2009-04-01 00:00:00
abstract：:Although it is well known that cadmium (Cd) causes adverse effects on male rat reproductive organs, few studies have quantified alterations caused by its low doses. Quantification of these alterations, especially in the testis, was measured using morphometry. A single dose of cadmium chloride (1 or 1.2 mg/kg BW) was i...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2009.00692.x
更新日期：2010-04-01 00:00:00
abstract：:C-cell tumours of the thyroid gland are among the most common spontaneous neoplasms of the laboratory rat. With the exception of calcitonin, little attention has been paid to the secretory peptides of C cells during the development of neoplasia. Of these peptides, somatostatin (SS) is of particular interest because it...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.0959-9673.2004.00367.x
更新日期：2004-02-01 00:00:00
abstract：:The tumour microenvironment, which is largely composed of inflammatory cells, is a crucial participant in the neoplastic process through the promotion of cell proliferation, survival and migration. Neutrophil polymorphonuclear cells (PMNs) induce inflammatory reactions that can be either cytotoxic for tumour cells or ...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/j.1365-2613.2008.00628.x
更新日期：2009-02-01 00:00:00
abstract：:The interrelationship between acinar cell apoptosis and tubular complex formation was examined in caerulein-induced pancreatitis using histology, immunohistochemistry, electron microscopy and DNA gel electrophoresis. Rats were given 8 hourly subcutaneous injections of caerulein, 24 micrograms/kg, for up to 2 days. Mor...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1046/j.1365-2613.1999.00116.x
更新日期：1999-08-01 00:00:00
abstract：:Dengue type 2 virus (DV) induces a subpopulation of T lymphocytes of mouse spleen to secrete a soluble helper cytokine (HF) which enhances the DV-specific IgM antibody plaque forming cells (PFC). The present study undertaken to purify and characterize HF shows that it can be purified by low pressure liquid chromatogra...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：
更新日期：1992-06-01 00:00:00
abstract：:Duchenne's muscular dystrophy (DMD) is a lethal childhood disease caused by mutations of the dystrophin gene, the protein product of which, dystrophin, has a vital role in maintaining muscle structure and function. Homologues of DMD have been identified in several animals including dogs, cats, mice, fish and invertebr...
journal_title：International journal of experimental pathology
pub_type： 杂志文章,评审
doi：10.1046/j.1365-2613.2003.00354.x
更新日期：2003-08-01 00:00:00
abstract：:We have shown previously that cycloheximide (CHX), a potent protein synthesis inhibitor, induces high levels of apoptosis in Epstein-Barr virus free (EBV(-)) Burkitt's lymphoma (BJA-B) cells, with comparably reduced levels of apoptosis in the EBV positive (EBV(+)) cells. Modulation of CHX-induced apoptosis in EBV(-) a...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1046/j.1365-2613.1997.170350.x
更新日期：1997-06-01 00:00:00
abstract：:Streptozotocin (SZ)-induced insulitis, which is an animal model for insulin-dependent diabetes mellitus, was suppressed by lactic dehydrogenase virus (LDV) infection. There were no differences in degenerative and necrotic changes of islet cells between SZ-treated mice and SZ-treated mice with LDV infection during the ...
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：:In this study we have explored the pathogenesis of the hepatic alterations which occur in diabetes and the modulation of these complications by the combination of metformin adjunct treatment and insulin monotherapy. For this purpose, diabetic rats were treated with insulin (DM + Ins) or metformin plus insulin (DM + Me...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/iep.12184
更新日期：2016-06-01 00:00:00
abstract：:Interleukin (IL)-6-related cytokines share gp130 as the signal-transducing protein. Cardiac myocytes produce various kinds of cytokines including IL-6 and cardiotrophin-1. Activation of gp130 transduces hypertrophic and cytoprotective signals in cardiac myocytes via JAK/STAT, MAP kinase and PI-3 kinase pathways. Besid...
journal_title：International journal of experimental pathology
pub_type： 杂志文章,评审
doi：10.1046/j.1365-2613.2000.00139.x
更新日期：2000-02-01 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：:BALB/c and CBA mice maintained on low (4%) or normal (18%) protein diets for 2 weeks after weaning were infected with a sublethal dose of murine cytomegalovirus, adjusted in proportion to body weight. Viral replication, histopathological changes and humoral responses to the virus were compared between the dietary grou...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：
更新日期：1991-02-01 00:00:00
abstract：:Formation of the coronary arteries consists of a precisely orchestrated series of morphogenetic and molecular events which can be divided into three distinct processes: vasculogenesis, angiogenesis and arteriogenesis (Risau 1997; Carmeliet 2000). Even subtle perturbations in this process may lead to congenital coronar...
journal_title：International journal of experimental pathology
pub_type： 杂志文章,评审
doi：10.1111/j.1365-2613.2009.00646.x
更新日期：2009-06-01 00:00:00
abstract：:Chronic hepatitis B virus (HBV) infection is a major global cause of hepatocellular carcinoma (HCC). Individuals who are chronic carriers have a greater than 100-fold increased relative risk of developing the tumour. Several mechanisms of HBV-induced HCC have been proposed. Integration of HBV DNA into the genome of he...
journal_title：International journal of experimental pathology
pub_type： 杂志文章,评审
doi：10.1111/j.1365-2613.2001.iep0082-0077-x
更新日期：2001-04-01 00:00:00
abstract：:Osteonecrosis (ON) was produced experimentally in rabbits by intravenous injection of platelet activating factor (PAF) in combination with lipopolysaccharides (LPS) on two occasions separated by a week-long interval. Eleven of 15 rabbits (73%), with administration of both LPS (50 microg/kg) and PAF (10 microg/kg), exh...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1046/j.1365-2613.2001.00202.x
更新日期：2001-10-01 00:00:00
abstract：:Administration of 25 mg/kg/day methyl clofenapate to Alpk/APfSD rats for up to 4 days gave rise to hepatomegaly resulting from a combination of hepatocyte hyperplasia, mainly in the periportal region of the lobule, and centrilobular cell hypertrophy. In hepatocytes undergoing mitosis there was a redistribution of dens...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：
更新日期：1994-12-01 00:00:00
abstract：:A recent global gene expression profiling study unexpectedly showed that activated oncogenic NRAS may recruit neural precursor cell expressed, developmentally downregulated 4L (Nedd4L; a human homologue of Nedd4-2) in cultured melanoma cells. However, whether Nedd4L was expressed in melanoma tissues or participated in...
journal_title：International journal of experimental pathology
pub_type： 杂志文章
doi：10.1111/iep.12051
更新日期：2014-02-01 00:00:00
