Abstract:
:In mouse embryos, the expression of Blimp1 has recently revealed a population of allocated primordial germ cell precursors 24 hours earlier than previously thought. Those 'blimped' precursors have been shown to give rise, by mitotic division, to germ cells only and no other cell lineages. Here, we try to understand the events that lead to Blimp1 expression in the primordial germ cell precursors and speculate on what can be the role of Blimp1 during primordial germ cell specification and gastrulation in the mouse. Finally, we discuss the possible involvement of Blimp1 in the two know modes of germ line segregation (epigenesis and preformation).
journal_name
Histol Histopatholjournal_title
Histology and histopathologyauthors
Chuva de Sousa Lopes SM,Roelen BAdoi
10.14670/HH-23.1553subject
Has Abstractpub_date
2008-12-01 00:00:00pages
1553-61issue
12eissn
0213-3911issn
1699-5848journal_volume
23pub_type
杂志文章,评审abstract::Neurons of the substantia nigra show severe morphological changes in Parkinson's disease. Pathological alterations of cell bodies have been described, whereas those of neuronal processes have hardly been investigated. Golgi impregnation has been the chosen method for demonstrating neuronal processes and dendritic and ...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1991-07-01 00:00:00
abstract::The nerve fiber distribution in the epidermis of the hairless rat skin was studied light microscopically by means of zinc iodide-osmium tetroxide staining. Two different morphological types of free nerve fiber endings could be detected: clusters of relatively thick nerve fibers stretched up through the spinous layer u...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-15.493
更新日期:2000-04-01 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::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::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::Despite years of research into its pathobiology and continuing clinical trials for novel therapies, the prognosis for patients with glioblastoma (GBM) remains dismal. An important obstacle against treatment efficacy may be a high degree of intra- and inter-tumoral heterogeneity within GBMs, which may be caused by the ...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-11-695
更新日期:2016-03-01 00:00:00
abstract::E(epithelial)-cadherin is a member of a calcium-dependent family of cell surface glycoproteins involved in cell-cell adhesion and morphogenesis. Catenins are a large family of proteins that connect the cadherins to the cytoskeleton. They are important for cadherin function and for transducing signals involved in speci...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-16.1097
更新日期:2001-10-01 00:00:00
abstract:BACKGROUND:Lipopolysaccharide (LPS) induced inflammation often leads to lung injury, in which pulmonary recruitment of neutrophils plays a pivotal role. Inflammatory processes are influenced by CD26/DPP4, highly expressed in lungs. Asthma induced CD26/DPP4 deficient (CD26/DPP4⁻) Fischer (F) 344 rats suffering from a tr...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-18-117
更新日期:2019-10-01 00:00:00
abstract::The presence of synaptophysin, a presynaptic Ca2+ binding glycoprotein, has been analyzed in the cochlear nucleus complex of the adult cat using an antisynaptophysin monoclonal antibody. Synaptophysin immunoreactivity was differently distributed between regions of cochlear nuclei. Terminal boutons contacting directly ...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-13.415
更新日期:1998-04-01 00:00:00
abstract::Soft dental tissues have been identified as easily accessible sources of multipotent postnatal stem cells. Dental stem cells are mesenchymal stem cells (MSC) capable of differentiating into at least three distinct cell lineages: osteo/odontogenic, adipogenic and neurogenic. They express various markers including those...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-29.699
更新日期:2014-06-01 00:00:00
abstract::Complex carbohydrate structures are essential molecules of infectious microbes and host cells, and are involved in cell signaling associated with inflammatory and immune responses. The uptake of mannose-tailed glycans is usually carried out by macrophages, dendritic cells (DCs), and other professional phagocytes to tr...
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::Programmed death-ligand 1 (PD-L1) is an inhibitory transmembrane protein that can prevent autoimmune response. Upregulated PD-L1 serves as a predictive biomarker for patients who may respond well to immune checkpoint therapies. However, variable associations of PD-L1 level with prognoses have been reported. In this st...
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::The effects of diethylstilbestrol (DES) and of long-acting somatostatin analog, octreotide (SMS) on the rat anterior pituitary microvasculature have been studied by means of computer-assisted image analysis. Additionally, the effects of DES and SMS on prolactin secretion and anterior pituitary cell proliferation have ...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1997-10-01 00:00:00
abstract::Targeting essential cellular pathways that determine neuronal and vascular survival can foster a successful therapeutic platform for the treatment of a wide variety of degenerative disorders in the central nervous system. In particular, oxidative cellular injury can precipitate several nervous system disorders that ma...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-19.495
更新日期:2004-04-01 00:00:00
abstract::To investigate the matrix metalloproteinase (MMP)-9, (MMP)-13, E-Cadherin and Ki-67 expressions in road pavers' skin chronically exposed to bitumen products in order to contribute to a better understanding of the earlier tissue alteration. Skin punch biopsies from 16 daily exposed workers and a control group were stud...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-18-116
更新日期:2019-10-01 00:00:00
abstract::Light and electron microscopy were used to analyze the epithelial lining of odontogenic cysts excised from edentulous regions of the jaws. Clinically, three cases were identified as keratocysts, and 21 cases as cysts other than keratocysts ("non-keratocysts"). The epithelium of the former was found to achieve keratini...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1996-04-01 00:00:00
abstract::Although testicular germ cell tumors (TGCTs) are relatively uncommon, they are particularly important, as they tend to affect children and young men, the most common tumor being in males aged from 20 to 40 years, and the incidence has been increasing in the last years. TGCTs comprise two major histologic groups: semin...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-29.999
更新日期:2014-08-01 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::Many surgical techniques are employed in the treatment of severe obesity. A main consequence of these techniques is the improvement of type 2 Diabetes mellitus. Ghrelin is a gut hormone released in the gastric fundus and corpus, which has been related to diabetic improvement as mentioned in these papers. Sleeve gastre...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-18-200
更新日期:2020-08-01 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::Primordial germ cells (PGCs) are the founder cells of all gametes. PGCs differentiate from pluripotent epiblasts cells by mesodermal induction signals during gastrulation. Although PGCs are unipotent cells that eventually differentiate into only sperm or oocytes, they dedifferentitate to pluripotent stem cells known a...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-26.643
更新日期:2011-05-01 00:00:00
abstract::Hexachlorobenzene (HCB) is a fungicide and a pollutant of increasing concern in industrialized regions of the world. Reproductive failure is one of the effects of HCB upon mammals. Alteration of cell shape in the ovary surface epithelium (OSE) of Cynomolgus monkeys following oral administration of HCB was observed in ...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:
更新日期:1991-10-01 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::Junctional complexes such as tight junctions, adherens junctions, and desmosomes play crucial roles in the structure and function of epithelial cells. These junctions are involved in increasing cell-cell contact and as well serve as signaling centers regulating multiple functions in epithelial cells. Carcinoma cell li...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-20.35
更新日期:2005-01-01 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::Unlike other B cells, plasma cells (PC) react with only a few antibodies against haemopoietic antigens. We investigated 36 specimens exhibiting a reactive increase in PC numbers (i.e. plasmacytosis, PC hyperplasia) with a broad panel of antibodies suitable for use on formalin-fixed, paraffin-embedded tissue, and compa...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-14.805
更新日期:1999-07-01 00:00:00
abstract::Bacillary angiomatosis (BA) is a reactive vasoproliferative lesion occurring almost exclusively in immunocompromised individuals in response to infection by a bacillus closely related to Rochalimaea quintana. The commonest site of involvement is the skin, in the form of multiple erythematous nodules, but bacillary ang...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:
更新日期:1992-01-01 00:00:00
abstract::Ebulin f is a ribosome-inactivating protein (RIP) present in green fruits of the dwarf elder (Sambucus ebulus L). Since dwarf elder fruits are used for food and as a medicine, we assessed the study of toxicological effects and safety of ebulin f in elderly mice, comparing these results with those reported in young ani...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-11-992
更新日期:2018-09-01 00:00:00
abstract::The growth of a transplantable murine non-Hodgkin lymphoma tumour, developing either intraperitoneally as an ascites tumour or subcutaneously as a solid tumour, has been shown to be markedly diminished by including phytohaemagglutinin (PHA), a lectin present in raw kidney bean (Phaseolus vulgaris) in the diet. In NMRI...
journal_title:Histology and histopathology
pub_type: 杂志文章,评审
doi:10.14670/HH-13.575
更新日期:1998-04-01 00:00:00
abstract::Smads are signal transducers for the members of the TGF-beta superfamily. Of these Smads, Smad4 is essential for TGF-beta signaling. The purpose of this study was to elucidate Smad4 expression and localization in 65 gastric adenomas, 49 intestinal-type and 39 diffuse type of gastric adenocarcinomas (including 12 cases...
journal_title:Histology and histopathology
pub_type: 杂志文章
doi:10.14670/HH-20.543
更新日期:2005-04-01 00:00:00