Abstract：
:A study was undertaken to analyze the spatio-temporal pattern of mesenchymal cell proliferation in the developing palate of quail. Quail embryos were grown in shell-less culture. The developing palates were labelled with 3H-thymidine between culture days 2-6 (which corresponded in vivo incubation days 5-9), and processed for light microscopic autoradiography. Percent labelled mesenchymal cells were determined. The data showed that, as in mammals, a high rate of random cell proliferation in mesenchyme was a major component of early palate development in quail. As the palate morphogenesis advanced, the rate of cell proliferation declined. Segmental analysis, however, indicated that, in contrast to mammals, the mesenchymal cell proliferation rates continually changed in various regions of quail palate during morphogenesis. It was suggested that the spatio-temporal changes in the distribution of dividing cells may reflect differences in the timings of cell cycles between various segments, thus resulting in a heterogeneous population of cells in the developing palate of quail. Further, the differences in the segmental pattern of cell proliferation between birds and mammals may form the basis for differences in the morphogenesis of their palates.
journal_name
Histol Histopatholjournal_title
Histology and histopathologyauthors
Hehn BM,Young AV,Shah RMsubject
Has Abstractpub_date
1995-07-01 00:00:00pages
697-702issue
3eissn
0213-3911issn
1699-5848journal_volume
10pub_type
杂志文章abstract：:Detailed characterization of the subdermal model is a significant tool for better understanding of calcification mechanisms occurring in heart valves. In previous ultrastructural investigation on six-week-implantated aortic valve leaflets, modified pre-embedding glutaraldehyde-cuprolinic-blue reactions (GA-CB) enabled...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-22.261
更新日期：2007-03-01 00:00:00
abstract：:Chronic liver diseases are commonly associated with tissue hypoxia that may cause inflammation, oxidative stress, liver cell injury and increased nuclear transcriptional regulation. The hepatic response to chronic hypoxia at the molecular level has not yet been clearly understood until now. The aim of this study is to...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：2013-04-01 00:00:00
abstract：:Little is known about the morphological response of muscle after long term traction. The purpose of this study was to investigate the morphological changes of skeletal muscle during limb lengthening. After application of mini-extraskeletal fixator, the hindlimb of New Zealand white rabbit was osteotomized and then slo...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1996-04-01 00:00:00
abstract：:This study deals with myocardial preservation after 24 hours of continuous, hypothermic and oxygenated perfusion with Cape Town (CT) solution, focusing on the morphological changes produced by preservation and reperfusion, and their possible relationship to the composition of the solution and the immediate hemodynamic...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-13.21
更新日期：1998-01-01 00:00:00
abstract：:Voltage-activated Ca2+ channels play an important role in synaptic transmission, signal processing and development. The immunohistochemical localization of Cav1.2 (alpha1C) and Cav2.3 (alpha1E) Ca2+ channels was studied in the developing and adult mouse organ of Corti using subunit-specific antibodies and fluorescent ...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-18.1115
更新日期：2003-10-01 00:00:00
abstract：:Nitric oxide (NO) is a biological messenger molecule produced by one of the essential amino acids L-arginine by the catalytic action of the enzyme NO synthase (NOS). The dual role of NO as a protective or toxic molecule is due to several factors, such as; the isoform of NOS involved, concentration of NO and the type o...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-21.445
更新日期：2006-04-01 00:00:00
abstract：:The study investigated the link between the potentially nephrotoxic levels of aluminium ingested in the natural diet of eucalypt leaves by koalas in the Adelaide Hills, South Australia, and the high incidence of renal failure in koalas within this habitat. Routine histology of kidney specimens revealed no pathologies ...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-19.777
更新日期：2004-07-01 00:00:00
abstract：:β-lapachone is a quinone of lapachol extracted from the bark of lapacho tree. Recent findings demonstrated that punched skin wounds of mice healed faster with β-lapachone treatment. The present study investigates the effects of β-lapachone on burn-wound skin of C57BL/6 mice injured by a 100 °C iron stick. Our results ...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-26.905
更新日期：2011-07-01 00:00:00
abstract：:Terminal dendrites of cone horizontal cells (HCs) in teleost retinas show numerous spine-like protrusions named spinules, which are invaginated into the cone pedicles during light-adaptation, but retracted during dark-adaptation. Somata of HC show nematosomes whose size decreases as the number of spinules increases. M...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-17.721
更新日期：2002-01-01 00:00:00
abstract：:A method for the in vitro generation of granulomas and its use in the analysis of the human granulomatous response is summarized. As a target for the cellular response L3 larvae of Nippostrongylus brasiliensis are coincubated with human mononuclear blood cells, and within seven to fourteen days the development of bloo...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-16.645
更新日期：2001-04-01 00:00:00
abstract：:In the present work we analyze the cerebellum of chronic parkinsonian monkeys in order to clarify whether chronic mesencephalic depletion is associated with long term activation of the cerebellar neurons in chronic Parkinsonism. In our study, we observed a persistent activation of Purkinje cells in the cerebellum of c...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-27.89
更新日期：2012-01-01 00:00:00
abstract：:The novel coronavirus disease 2019 (COVID-19) outbreak began in the city of Wuhan, whereupon it rapidly spread throughout China and subsequently across the world. Rapid transmission of COVID-19 has caused wide-spread panic. Many established medications have been used to treat the disease symptoms; however, no specific...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-18-223
更新日期：2020-10-01 00:00:00
abstract：:Hereditary hemochromatosis (HH) is an inherited iron overload disorder characterized by normal iron-driven erythropoiesis and abnormal iron metabolism, leading to excess iron deposited in parenchymal cells of liver, heart, and endocrine glands. Iron hormone, hepcidin, plays a critical role in iron homeostasis through ...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-11-762
更新日期：2016-08-01 00:00:00
abstract：:The mandible has a mixed embryological origin, and its growth is associated with the secondary cartilage of the condyle process (CP). In this area, growth depends on an array of intrinsic and extrinsic factors that influence protein metabolism. In the present study, we used an adolescent rat model to evaluate the grow...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-25.45
更新日期：2010-01-01 00:00:00
abstract：:Ductular hepatocytes are observed in the livers of both experimental animals and man under various conditions of severe toxin-, carcinogen- or viral-induced hepatic injury with prominent loss of parenchymal hepatocytes. These unique hepatic epithelial cells are characterized by phenotypic traits that are intermediate ...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：
更新日期：1995-04-01 00:00:00
abstract：:To clarify the role of REG IV, a new member of the regenerating gene (REG) family, in tumorigenesis and progression of colorectal carcinoma (CRC), 320 CRC specimens, 123 corresponding adjacent non-cancerous mucosa (ANCMs), 46 corresponding non-adjacent non-cancerous mucosa (NANCMs) and 86 adenomas were investigated im...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-25.473
更新日期：2010-04-01 00:00:00
abstract：:We examined the relationship between the incidence of ultrastructural changes in the alveolar septum and the extravascular lung water content. Pulmonary edema was induced in 18 mongrel dogs by either dextran (n = 12) or alloxan (n = 6) administration. Six other dogs served as controls. Extravascular lung water content...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:The photoreceptors of the barred owl (Strix varia) consist of rods, single cones and unequal double cones present in a ratio of about 35:1:3. In the light-adapted condition the rods are of uniform diameter along their entire length and are therefore not felt to undergo photomechanical changes. The rod outer segment co...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:Morphological and biochemical alterations have been described in neurons of the aged human brain. However, the cell death process associated with neuronal senescence remains to be elucidated. Apoptosis and autophagic degeneration, two modes of programmed cell death described in embryogenesis and tissue renewal in adul...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1997-07-01 00:00:00
abstract：:An ultrastructural and histological study was made to analyse the structural and cellular features of the pulmonary lesions produced in Wistar rats by intraperitoneal (i.p.) administration of cyclophosphamide (two i.p. doses of 150 mg CP/1 kg bw/1 ml PBS). Rats exposed to cyclophosphamide (CP) developed a condition wh...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-14.1145
更新日期：1999-10-01 00:00:00
abstract：:Circadian and seasonal variations were observed in the karyometric index of pinealocytes in the cortical and medullary regions of the distal pineal body. The study involved 70 Wistar rats over a 24-hour interval (0:6, 10:00, 14:00, 18:00, 22:00, 02:00, 06:00 h) during two natural photoluminous periods, i.e. late summe...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1992-10-01 00:00:00
abstract：:Endometriosis is a chronic pelvic inflammatory process. Local inflammation is known to play a role in pain and infertility associated with the disease, and may be extensively involved in molecular and cellular processes leading to endometriosis development. In this review, we focus on two inflammatory mediators clearl...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-26.1083
更新日期：2011-08-01 00:00:00
abstract：:Nitric oxide (NO) has opened a new and vigorous field of biological and clinical experimentation as evidenced presently by about one hundred original publications every week. Being a biological signal under physiological conditions, NO may be
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：
更新日期：1997-01-01 00:00:00
abstract：BACKGROUND:Synaptotagmin 7 (SYT7) is a component of the synaptotagmin family, which is essential in many physiological and pathological processes. In this study, we aimed to investigate the role of SYT7 in osteosarcoma. METHODS:We defined the expression levels of SYT7 in osteosarcoma tissues and para-sarcoma tissues b...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-18-174
更新日期：2020-03-01 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：:Multilocular cystic renal cell carcinoma (MCRCC) accounts for approximately 1 to 2% of all renal tumors. This tumor is currently classified as a subtype of clear cell RCC. Clinically, the majority of these tumors are incidentally found. Macroscopically, the tumor is well demarcated and consists of various-sized cysts....
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-27.969
更新日期：2012-08-01 00:00:00
abstract：:Aluminium (Al) is a neurotoxic metal and Al exposure may be a factor in the aetiology of various neurodegenerative diseases such as Alzheimer's disease (AD). The major pathohistological findings in the AD brain are the presence of neuritic plaques containing beta-amyloid (Abeta) which may interfere with neuronal commu...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：10.14670/HH-23.433
更新日期：2008-04-01 00:00:00
abstract：:Sulfur dioxide (SO₂) is a toxic gas and air pollutant. The toxic effects of SO₂ have been extensively studied. Oxidative damage due to SO₂ can occur in multiple organs. Inhaled SO₂ can also cause chromosomal aberrations, DNA damage and gene mutations in mammals. However, SO₂ can also be generated from the sulfur-conta...
journal_title：Histology and histopathology
pub_type： 杂志文章,评审
doi：10.14670/HH-11-904
更新日期：2017-12-01 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：:The need for an immunophenotypical referential framework relative to lymphoid follicle has led us to apply a panel of monoclonal and polyclonal antibodies, by means of a sensitive immunostaining method. Lymphoid follicle is an immunophenotypically complex structure made up of three lymphoid populations (B, being its b...
journal_title：Histology and histopathology
pub_type： 杂志文章
doi：
更新日期：1988-01-01 00:00:00
