Abstract:
:The histological and ultrastructural features, as well as the immunoreactivity of one case of uncommon primary papillary and psammomatous adenocarcinoma of the umbilicus are studied in the present work. The observations have been undertaken in a nine-year follow-up, and have included the primitive tumour, two local recidives, and inguinal lymphatic metastasis on two occasions. Papillary structures, numerous psammoma bodies, as well as weak and focal positive reactions to CEA and cytokeratin were present in all the tumours. Since these features and their ultrastructural characteristics were identical to primary papillary serous neoplasias of the peritoneum and ovarium, the hypothesis of an origin in coelomic remnants is considered.
journal_name
Histol Histopatholjournal_title
Histology and histopathologyauthors
Hernández N,Medina V,Alvarez-Arguelles H,Gutiérrez R,Pérez-Palma J,Díaz-Flores Lsubject
Has Abstractpub_date
1993-10-01 00:00:00pages
593-8issue
4eissn
0213-3911issn
1699-5848journal_volume
8pub_type
杂志文章abstract::We have examined the ontogeny of somatostatin-, Glucagon-, Vasoactive Intestinal Polypeptide-, Substance P-, Neuropeptide Y, and Calcitonin gene-related peptide-Iike structures in the chicken retina by immunocytochemistry. Neuroblastic cells containing Substance P-Iike immunoreactivity (IR) first appeared at embryonic...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-18.1013
更新日期:2003-10-01 00:00:00
abstract::The effects of the administration of cyclophosphamide to male rats at doses of 400 mg/m2 for a period of 5 days and of 200 mg/m2 over two five-day cycles interrupted by a 21-day break reveal differences in the ultrastructural morphology of gonadotrophic cells between treated animals and normal controls. The ultrastruc...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1990-04-01 00:00:00
abstract::Sphingosine kinase functions to phosphorylate sphingosine to sphingosine 1-phosphate (S1P) to keep balance in the metabolites of sphingolipids. There are two isoforms of sphingosine kinase, sphingosine kinase 1 (SphK1) and sphingosine kinase 2 (SphK2). Although SphK1 and SphK2 share high sequence similarity, SphK2 has...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-11-939
更新日期:2018-05-01 00:00:00
abstract::Diabetic nephropathy (DN) is a major cause of end-stage renal disease (ESRD), however, specific treatment for DN has not yet been elucidated. Therefore, it is critically important to understand the molecular mechanism underlying DN to develop cause-related therapeutic strategy. To date, various factors such as hemodyn...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-11-777
更新日期:2016-10-01 00:00:00
abstract::Thyroid hormones (TH) stimulate oxidative metabolism in many tissues in the body, but testis is not one of them. Therefore, in this sense, testis is not considered as a target organ for TH. However, recent findings clearly show that TH have significant functions on the testis in general, and Leydig cells in particular...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-19.985
更新日期:2004-07-01 00:00:00
abstract::Osteoclasts are physiological polykaryons specialized in the resorption of calcified tissue. In the context of the clinical use of calcium-phosphate (CaP) ceramics as bone substitutes, this study used transmission electron microscopy to investigate the in vitro mechanisms of CaP ceramic degradation by osteoclastic cel...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-16.37
更新日期:2001-01-01 00:00:00
abstract::The purpose of this study was to determine the histological characteristics of a skeletal muscle reconstructed by means of the implantation of autologous adipose tissue following an experimentally-induced volumetric muscle loss. A cylindrical piece in the belly of the rat anterior tibial muscle was removed. In the hol...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-18-163
更新日期:2020-05-01 00:00:00
abstract::The corneas of nine pipefish, Corythoichthyes paxtoni (Syngnathidae, Teleostei), five freshly fixed and four museum specimens, were examined using light and electron microscopy. In transverse section, the surface of the corneal epithelium is covered by a complex series of ridges or microplicae which extends over the c...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1995-04-01 00:00:00
abstract::The epicardium is the outer mesothelial layer of the heart. It covers the myocardium and plays important roles in both heart development and regeneration. It is derived from the proepicardium (PE), groups of cells that emerges at early developmental stages from the dorsal pericardial layer (DP) close to the atrio-vent...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-18-238
更新日期:2020-09-01 00:00:00
abstract::The resistance to airflow that develops in most obstructive processes takes place in the small airways. The aim of the present paper is to describe bronchial hysteresis morphometrically in a respiratory cycle model. As a working hypothesis, it is proposed that the changes that take place in the respiratory tract durin...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-18.19
更新日期:2003-01-01 00:00:00
abstract::Previous studies have demonstrated a role for the beta-adrenergic system in the maturation of the fetal alveolar epithelium. Chronic blockade of beta-adrenergic binding sites has been shown to adversely effect physiologic and biochemical indices of fetal lung maturation. In the present study timed-pregnant female Spra...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-17.365
更新日期:2002-04-01 00:00:00
abstract::Serotonin-producing pancreatic endocrine tumours are rare neoplasms which in most cases exhibit malignant biological behaviour. These tumours, in the majority of the well-documented cases, are composed of argyrophil- and argentaffin-positive cells which contain large pleomorphic neurosecretory granules. In contrast, a...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1990-07-01 00:00:00
abstract::This report describes the gross, histopathological, immunocytochemical and electron microscopic findings in a cat with systemic cryptococcosis and feline immunodeficiency virus (FIV) infection. Lymphadenopathy and cloudiness of leptomeninges were the major gross findings. Numerous cryptococcal yeasts were found in lym...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1994-04-01 00:00:00
abstract::Recently ultraviolet light (UV) reaching the Earth's surface has been gradually increasing in amounts by the destruction of the ozone layers. Large parts of UV are absorbed in the cornea and lens, and only a few amounts reached the retina; however, the effect on the retina is not fully elucidated. 38 rats were irradia...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1996-07-01 00:00:00
abstract::Systematic studies on hepatic stellate cells and myofibroblasts have so far mainly focused on cells located in the perisinusoidal space of Disse, the so-called littoral compartment. Here, these cells play a key role for intralobular fibrogenesis and sinusoidal capillarization. However, advanced hepatic fibrosis and ci...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-14.719
更新日期:1999-07-01 00:00:00
abstract::Since endometriosis is a proliferative disease we evaluated the presence of anti-apoptotic factor (Bcl-2) and pro-apoptotic factor (Bax) in deep pelvic endometriosis. A Cross-sectional observational study was performed at Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil. Forty women aged 26 to 46 years with ...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-29.1129
更新日期:2014-09-01 00:00:00
abstract::The S100 gene family, which is composed of at least 24 members carrying the Ca2+ binding EF-hand motif, has been implicated in both intracellular and extracellular functions, including enzyme activities, immune responses, cytoskeleton dynamics, Ca2+ homeostasis, cell growth and cell differentiation. Altered S100 prote...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-22.1025
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:Honey and olive oil are natural products that have high nutritional values, and therapeutic properties. Cytotoxic drugs, like methotrexate (MTX) are used to treat malignancies in tumour cells; however, these drugs also have serious side effects that could threaten the patient's life. AIM:To evaluate the pot...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-18-126
更新日期:2019-12-01 00:00:00
abstract::The renin-angiotensin system (RAS) and tubuloglomerular feedback (TGF) are central to the maintenance of blood pressure and body fluid composition. Renin, NO synthase-1 (NOS-1), and cyclooxygenase-2 (COX-2) are key regulators of the RAS and TGF. In the present study, to investigate species-specific differences in the ...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-23.143
更新日期:2008-02-01 00:00:00
abstract::The possibility of resuscitating livers after warm ischaemia has been recently suggested. The aim of the present investigation was to analyse the effects of anoxia on the morphology of hepatic cells, to determine whether these effects are reversible after providing a resuscitation period between warm ischaemia (WI) an...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract::Macrophages play important roles in host defense mechanisms. In the brain, besides microglial cells, meningeal macrophages are present. However, the pathobiological characteristics of meningeal macrophages in rats remain to be investigated. In normal meninx, immunohistochemically, macrophages reacting to CD163 (macrop...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-24.13
更新日期:2009-01-01 00:00:00
abstract::Correlated stereological and functional studies were performed on the effect of massive ACTH doses on adrenal cortex of the female hamster. ACTH resulted in a marked increase in adrenal gland weight at day 6 of treatment followed by a drop at day 9. Stereology showed significant enlargement of the zona fasciculata (ZF...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::A novel family of evolutionally conserved neuronal guidance cues, including ligands (i.e., Slit, netrin, epherin, and semaphorin) and their corresponding receptors (i.e., Robo, DCC/Unc5, Eph and plexin/ neuropilin), has been identified to play a crucial role in axon pathfinding and branching as well as neuronal cell m...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-25.1181
更新日期:2010-09-01 00:00:00
abstract::Fatty acid binding proteins (FABPs) are 15-kDa proteins responsible for the transport of fatty acids both intracellularly and extracellularly. Consisting of 12 different isoforms, some of the proteins have been found to be released in the serum and to be correlated with various diseases including cancer. Differential ...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-18-014
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Little is known regarding the role of redox balance regulators in metastatic melanomas, but there is some evidence for a link between epithelial-to-mesenchymal transition (EMT) and cellular redox status. METHODS:We compared the immunohistochemical expression of nuclear factor erythroid-2-related factor 2 (N...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-11-778
更新日期:2017-02-01 00:00:00
abstract::The pineal organs of 14-week-old domestic geese were investigated with light and electron microscopy. The pineals consisted of a wide distal part and a narrow middle-proximal one. The glands were attached to the intercommissural region via the choroid plexus. The pineal parenchyma was formed by round or elongated foll...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-21.1075
更新日期:2006-10-01 00:00:00
abstract::Sialoderivatives expressed in the rabbit oviduct under hormonal treatment have been investigated in situ by lectin histochemistry with a view to specifying further regional and temporal specializations which enable ampulla and isthmus to play distinct roles in the reproductive events. Application of MAL II and SNA lec...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-19.1175
更新日期:2004-10-01 00:00:00
abstract::Primary cultured human salivary gland cells were transfected with ori-defective mutant DNA of SV40. Following 2-3 weeks of transfection, slowly expanding colonies consisting of small compact cells emerged, while mock-transfected cells did not grow any more and eventually entered crisis, followed by cell death. Using l...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:
更新日期:1994-10-01 00:00:00
abstract:INTRODUCTION:Germline mutations in the tumour suppressor gene dyskeratosis congenit 1 (DKC1) cause the cancer prone syndrome called X-linked dyskeratosis congenita. The present study aims to determine whether mutations of the DKC1 gene may also be present in frequent human sporadic cancers (breast, colon and lung cance...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-28.365
更新日期:2013-03-01 00:00:00
abstract::An electron microscopic study of the myoepithelial cells in the chicken Harderian gland provides evidence that these cells can be transformed into myofibroblasts. After the application of a Brucella ovis suspension in sterile saline onto the eyeball, every 5 minutes for half an hour, myoepithelial cells gradually deve...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1991-07-01 00:00:00