Abstract:
:Studies with scanning electron microscopy in the normal human sulcular epithelium are scarce, and no precise information exists about cell surface patterns along the epithelium, the frequencies of these patterns, or possible regional differences within the mouth. In five periodontal biopsy specimens each from the anterior and posterior region of the mouth, we observed three cell patterns on the basis of the overall appearance of morphological surface markers in the coronal and apical zones of sulcular epithelium: microvilli; microplicae; and pits. The percentage of keratinocytes showing the microvillous pattern in the surface of apical sulcular epithelium of the posterior region of the mouth was significantly higher than in the anterior region. We posit that the presence, in the bottom of the normal sulcular epithelium in the posterior region of the mouth, of mainly microvillous keratinocytes (the most undifferentiated and least desquamative type of keratinocyte, and thus the most vulnerable to bacterial colonization) can be associated with observations of longitudinal clinical studies of periodontal disease, which suggest that more severe clinical findings are found in the region of the molars.
journal_name
Histol Histopatholjournal_title
Histology and histopathologyauthors
Sánchez-Quevedo MC,Moreu G,Campos A,García JM,González-Jaranay Msubject
Has Abstractpub_date
1994-01-01 00:00:00pages
149-53issue
1eissn
0213-3911issn
1699-5848journal_volume
9pub_type
杂志文章abstract::Various microscopic methods have been used to analyze the morphology and molecular distribution of cells and tissues. Using conventional procedures, however, ischemic or anoxic artifacts are inevitably caused by tissue-resection or perfusion-fixation. The in vivo cryotechnique (IVCT) was developed to overcome these pr...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-22.1281
更新日期:2007-11-01 00:00:00
abstract::Parkinson's disease (PD) is a neurodegenerative disorder characterized by progressive cell loss confined mostly to dopaminergic neurons of the substantia nigra. Several factors, including oxidative stress, and decreased activity of complex I mitochondrial respiratory chain, are involved in the degenerative process. Ye...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
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abstract::Spermatogenesis is under the control of a complex endocrine and paracrine system, including estrogen receptor (ER) signaling. In many target cells, ER promotes the transcription of c-fos and other proto-oncogenes to regulate cell growth and differentiation. Thus, in this study we evaluated the expression of the proto-...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-24.1515
更新日期:2009-12-01 00:00:00
abstract::The developing fetal brain is one of the most susceptible organs to irradiation insult. Prenatal irradiation-induced abnormalities in the cerebrum have been well examined in mouse fetuses. However, little information on abnormalities in the cerebellum caused by irradiation is available. Moreover, few reports have exam...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-23.953
更新日期:2008-08-01 00:00:00
abstract::The pathophysiologic mechanism by which chronic hypoxia causes pulmonary hypertension is unknown. If anti-platelet agents, or other pharmacologic interventions, altered the pulmonary vascular changes induced by hypoxia, information concerning the pathogenesis of the pulmonary hypertension or the potential therapeutic ...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1987-04-01 00:00:00
abstract::Elevated plasma levels of C-reactive protein (CRP) are associated with increased risk of cardiovascular disease. CRP immunoreactive protein is also detected in the lesions of atherosclerosis. However, it is not known whether the CRP contents of atherosclerotic lesions are associated with the initiation and progression...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-27.529
更新日期:2012-04-01 00:00:00
abstract::Cocaine- and amphetamine-regulated transcript peptide (CART) is a neuromediator and/or neuromodulator in nerve structures within the gastrointestinal tract, but knowledge about its distribution, functions and co-localisation with other neuronal factors, especially in humans, is very scarce. During the present investig...
journal_title:Histology and histopathology
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doi:10.14670/HH-28.851
更新日期:2013-07-01 00:00:00
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journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1987-10-01 00:00:00
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journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-23.1439
更新日期:2008-12-01 00:00:00
abstract::Neonatal hypoxic ischemia (HI) results in different extents of brain damage, and immature brain tissue is particularly sensitive to the stimulation of HI. Hypoxic-ischemic brain damage (HIBD) is a common and serious nervous system disease in neonates, for both full-term infants and preterm infants, and is one of the m...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
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更新日期:2020-09-01 00:00:00
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journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-11-601
更新日期:2015-08-01 00:00:00
abstract::This paper reports the histopathological findings in the eyes of a 26-year-old female patient diagnosed with systemic lupus erythematosus (SLE) with peripheral neuropathy. The patient had no significant ocular problems. She died of pneumonia after two years of suffering. The eyeballs were procured at autopsy and the r...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-20.373
更新日期:2005-04-01 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::An immunohistochemical study of matrix metalloproteinases (MMP-2 and MMP-9) or gelatinase (gelatinase A and gelatinase B) was performed on the seminal vesicles and ventral prostate of the Libyan jird (Meriones libycus) collected in the Beni-Abbes area during breeding period (spring and early summer), during resting ph...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-25.619
更新日期:2010-05-01 00:00:00
abstract::Earlier we reported that atherosclerotic lesions of apoE-deficient mice contained cells which stained positively with anti-S-100 antibody and that cells exhibiting the ultrastructural features of dendritic cells were present in the aortic lesions. These observations suggested that dendritic cells might be involved in ...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-16.801
更新日期:2001-07-01 00:00:00
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journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1997-04-01 00:00:00
abstract::Differentiating nonspecific interstitial pneumonia (NSIP) from usual interstitial pneumonia (UIP) is important for the determination of both treatment and prognosis. Using two-dimensional fluorescence difference gel electrophoresis (2D-DIGE), we examined 8 UIPs, 8 NSIPs, and 30 normal lung tissues. Comparisons with co...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-29.377
更新日期:2014-03-01 00:00:00
abstract::Dimethylnitrosamine (DMN) induced liver injury in rats with cell necrosis, inflammation, hemorrhages, increased collagen type III synthesis and basement membrane component laminin and collagen IV localization in perisinusoidal sites. Malotilate ingestion during DMN treatment abolished inflammation and decreased inters...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract:OBJECTIVE:Describe the morphological changes that take place in the lung parenchyma and in the airways during the respiratory cycle with a view to establishing a relationship between them. SUBJECTS:Adult Wistar rats. INTERVENTIONS:The lungs were fixed at seven different points in the respiratory cycle: Inflation, 10 ...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-22.43
更新日期:2007-01-01 00:00:00
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journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-18-272
更新日期:2020-10-28 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
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journal_title:Histology and histopathology
pub_type: 杂志文章,meta分析
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更新日期:2018-04-01 00:00:00
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journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1995-07-01 00:00:00
abstract::In the cutaneous nerves, unmyelinated nerve fibers outnumber the myelinated ones but are scarcely analyzed, especially at autopsy. This indifference toward the pathology of unmyelinated nerve fibers may be due to the necessity of electron microscopic analyses and, more importantly, the obscurity of pathological altera...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-15.313
更新日期:2000-01-01 00:00:00
abstract::Recently, the characterization of mucinous tubular and spindle-cell carcinoma (MTSCC) has been established. MTSCC predominantly occurs in females. This tumor is histologically characterized by eosinophilic cytoplasm, elongated and anastomosing tubules, myxomatous stroma and low-grade nuclear cytology. Proliferation of...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-20.221
更新日期:2005-01-01 00:00:00
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journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-28.155
更新日期:2013-02-01 00:00:00
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journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-24.1029
更新日期:2009-08-01 00:00:00
abstract::Duodenal samples were taken from similar locations in six cats, processed, stained, and examined via light microscope. There were no prominent circular folds (plicae circulares) or stratum compactum (lamina subglandularis). The 1072 microns x 201 microns villi were covered by 46 microns high columnar epitheliocytes pr...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1986-10-01 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
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journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-24.631
更新日期:2009-05-01 00:00:00