Abstract:
:Studies on embryonic development in vitro as well as observations in vivo, suggested that two aspects of oviduct physiology are important for early development. On one side has to be considered the oviduct "environment": temperature, pH, osmotic pressure, nutrients, oxygen tension, free radical scavengers, etc. On the other, the oviduct "active components": stimulatory and/or regulatory molecules, supposed to finely regulate the fertilisation process and the first differentiative steps. While the physical environment of the oviduct has been under investigation for some decades, studies on oviduct-specific molecules and their functions have only been developed much more recently. The amount of information on this topic, however, has rapidly reached the size that demands a summary. In this review the descriptive literature on oviduct specific proteins will be examined as a basis for illustrating the possible functions of these molecules. In particular their role in fertilisation and early embryonic cleavages will be analysed in some details. Finally a section is devoted to the presence and physiological significance of growth factors in oviduct fluid.
journal_name
Microsc Res Techjournal_title
Microscopy research and techniqueauthors
Gandolfi Fdoi
10.1002/jemt.1070320102subject
Has Abstractpub_date
1995-09-01 00:00:00pages
1-12issue
1eissn
1059-910Xissn
1097-0029journal_volume
32pub_type
杂志文章,评审abstract::We have used high voltage electron microscopy and computer-generated three-dimensional reconstructions from serial sections to elucidate the structure of taste bud cells and their associated synapses in fungiform taste buds of the mouse. Five fungiform taste buds (two of which were serially sectioned) were examined wi...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.1070260207
更新日期:1993-10-01 00:00:00
abstract::The aim of the study was to determine the efficacy of different products containing fluoride, calcium and phosphate for enamel remineralization in eroded primary teeth. A total of 90 sound primary canine teeth were randomly divided into 5 groups of 18 teeth each: 1) control (polished enamel), 2) 5% DuraShield sodium f...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.22543
更新日期:2015-09-01 00:00:00
abstract::The effects of crystal and beam tilt on high-resolution transmission electron microscope (HRTEM) images of planar coherent interfaces were investigated by multislice image simulations. It was found that a beam tilt of 0.5 Bragg angle (theta B) was sufficient to introduce detrimental artifacts into most images of inter...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.1070230306
更新日期:1992-11-01 00:00:00
abstract::Despite the large number of species, their wide distribution, and unique reproductive characteristics, Neotropical bats have been poorly studied, and important aspects of the reproduction of these animals have not been elucidated. We made an ultrastructural analysis of spermatogenesis in Molossus molossus (Molossidae)...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.22005
更新日期:2012-07-01 00:00:00
abstract::Twelve substrains of inbred senescence-accelerated mice (SAM) have been developed, among which the SAMP8 and SAMP10 strains show a significant age-related deterioration in learning and memory for passive and active avoidance tasks. These strains have, respectively, a low and high incidence of systemic senile amyloidos...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0029(19981001)43:1<59::AID-JEMT
更新日期:1998-10-01 00:00:00
abstract::Frozen skin sections are routinely used for light microscopic immunohistochemical study of the skin basement membrane zone for two reasons: some skin basement membrane zone proteins are labile to routine chemical fixation, and skin is not amenable to vibratome sectioning. However, inherent limitations of conventional ...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.1136
更新日期:2001-08-15 00:00:00
abstract::All organisms exhibit significant daily rhythms in a myriad of functions from molecular levels to the level of the whole organism. Significantly, most of these rhythms will persist under constant conditions, showing that they are driven by an internal circadian clock. In birds the circadian system is composed of sever...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/jemt.1068
更新日期:2001-04-01 00:00:00
abstract::Ion transport mediated by osmotically induced chloride channels in HT29 cells was investigated by X-ray microanalysis of cell cultures. The cells were cultured on cellulose nitrate filters, and exposed to isotonic, hypotonic, or hypertonic solutions. Then the NaCl-rich medium was removed by rinsing the cells with a wa...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0029(19980101)40:1<72::AID-JEMT
更新日期:1998-01-01 00:00:00
abstract::Proliferative activity of tumors is strongly associated with prognosis and response to therapy. The reason for faster and uncontrolled growth rate of tumors compared with normal tissue may be caused by the greater proliferation of cells, the smaller rate of cell death, or both. Cell production vs. cell loss rates, and...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0029(19980301)40:5<408::AID-JEM
更新日期:1998-03-01 00:00:00
abstract::The morphology of pancreatic excretory duct segments was reviewed in mammals. The fine structure of the epithelial lining was described in intercalated ducts, intra- and extralobular ducts, and in major pancreatic ducts. Morphological characteristics of the various cell types comprising to the duct epithelium were det...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0029(19970601)37:5/6<407::AID-J
更新日期:1997-06-01 00:00:00
abstract::Several models for preparing and isolating human and animal gallbladder epithelial cells, including low-grade gallbladder carcinoma cells, as well as proposed systems for culturing these isolated epithelial cells are reviewed here. Several reports concerning tissue culture of the gallbladder are also reviewed. The cel...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0029(19971001)39:1<71::AID-JEMT
更新日期:1997-10-01 00:00:00
abstract::The construction of the liver parenchyma throughout fetal development depends on the elaboration of intercellular contacts between epithelial cells and between epithelial and mesenchymal cells. During this time, the spatial distribution of cytokeratins in hepatocytes shows a striking evolution as demonstrated by confo...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0029(19971201)39:5<436::AID-JEM
更新日期:1997-12-01 00:00:00
abstract::The purpose of this study is to determine the possible changes in the localization of the four Epidermal Growth Factor Receptors and three ligands in quail lungs from the first day of hatching until the 125th after hatching using immunohistochemical methods. Immunohistochemical results demonstrated that four EGFRs and...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.22544
更新日期:2015-09-01 00:00:00
abstract::The aim of the study is to examine and compare the effects of various inhaled asthma medications (IAMs) on the surface roughness of dental restorative materials (DRMs). In total, 192 samples were prepared including 32 samples for the each material group from six different DRMs [Nanohybrid composite (Filtek Z550), Nano...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.23584
更新日期:2021-02-01 00:00:00
abstract::Effective protocols for controlling crystal structure, size, and morphology attract considerable interest given the requirement for particles of modal size and shape in many areas of materials fabrication and the importance of crystallochemical selectivity in determining the exploitable properties of inorganic solids....
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.1070270504
更新日期:1994-04-01 00:00:00
abstract::We compared physiological and ultrastructural indices of acute lung injury (ALI) during septic shock caused by taxonomically diverse pathogens to distinguish ALI due to endogenous inflammatory mediators vs. microbial exotoxins or other factors. Conscious rats were infected i.v. with gram-negative Escherichia coli (EC,...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.1070260512
更新日期:1993-12-01 00:00:00
abstract::Neuropeptides are peptides with profound effects on the nervous system. The function of neuropeptides can be studied in detail in the stomatogastric nervous system (STNS). Neuropeptides are ubiquitously distributed in the STNS and it contains well-studied neural circuits that are strongly modulated by neuropeptides. T...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/jemt.10269
更新日期:2003-02-15 00:00:00
abstract::During late anaphase and telophase, animal cells develop a bundle of antiparallel, interdigitating microtubules between the two daughter nuclei. Recent data indicate that this structure, called the central spindle, plays an essential role during cytokinesis. Studies in Drosophila and on vertebrate cells strongly sugge...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0029(20000415)49:2<202::AID-JEM
更新日期:2000-04-15 00:00:00
abstract::Lungfish are a group of ancient fish, represented almost continuously in the fossil record from their first appearance in the Devonian to the present time. They have numerous unique characters in the dentition, found only among lungfish, as well as some that are shared with other groups of fish and with higher vertebr...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.10221
更新日期:2002-12-01 00:00:00
abstract::Förster resonance energy transfer (FRET) allows one to study interactions between two fluorescently labeled molecules (donors and acceptors) at distances on the order of 5 nm. Many studies have described methods of how to measure the efficiency of FRET. However, few have addressed the question of how fluorescence from...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.20078
更新日期:2004-06-01 00:00:00
abstract::The catecholaminergic cell groups in the human brain, denominated from A1 to A17, display some striking anatomical differences with those described in the rodent. These differences are essentially observed in the extent of the dopaminergic neurons and especially their axonal fields in the telencephalon. Immunocytochem...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0029(19990701)46:1<24::AID-JEMT
更新日期:1999-07-01 00:00:00
abstract::A small-angle cleavage technique has been developed that produces superior transmission electron microscope (TEM) samples of semiconductors and related materials. The technique involves back-thinning the sample to approximately 100 microns, then scribing a groove on this back face at a specified small angle to a stand...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.1070240210
更新日期:1993-02-01 00:00:00
abstract::Chronic kidney disease (CKD) is a relevant disease in feline clinic. The tubulointerstitial damage, with collagen deposition and fibrosis, is an important result of this process. The aim of this study was to quantify and correlate the deposition of collagen and severity of interstitial fibrosis (IF) in the kidney from...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.22830
更新日期:2017-05-01 00:00:00
abstract::Anatomical study of leaf xylary vessel elements of Carthamus oxycantha under various intensities of lead (Pb) and nickel (Ni) stress (200, 400, 600, and 800 mg Pb(NO3 )2 , NiCl2 ·6H2 O/kg of the soil) was conducted. The deformations caused due to metal stress were detected using point-based image registration techniqu...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.23476
更新日期:2020-07-01 00:00:00
abstract::Gap junctions are specialized plasma membrane structures that join neighboring cells via specialized intercellular ion channels (hemichannels) and provide a direct pathway for cell-cell communication. They presumably mediate regulation of growth, transmission of developmental signals, coordination of muscle contractio...
journal_title:Microscopy research and technique
pub_type: 杂志文章,评审
doi:10.1002/1097-0029(20010201)52:3<273::AID-JEMT1013>
更新日期:2001-02-01 00:00:00
abstract::This paper describes the use of a photobleach method and confocal microscopy to compare the cell-to-cell transfer rate of 5,6 carboxyfluorescein in dissociated embryonic chick lens cells with those in the anterior epithelium of the whole embryonic chick lens. The average cell-to-cell transfer rates obtained were 7.9 x...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.1070310508
更新日期:1995-08-01 00:00:00
abstract::We have examined cellular events at the early stages of periosteal chondrogenesis and osteogenesis induced by bone fracture, using a well-standardized rib fracture model of the mouse. The initial cellular event was recognized as considerable proliferation in the deeper layer referred to as the "cambium layer" of the p...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.20088
更新日期:2004-07-01 00:00:00
abstract::Cell-free extracts of Xenopus eggs were used to investigate how differing lamin sub-types are incorporated into a lamina and how lamina composition influences DNA replication. Purified recombinant human lamin A (HlaminA) was inoculated into egg extracts, which support in vitro nuclear assembly. The route of incorporat...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0029(19990401)45:1<1::AID-JEMT1
更新日期:1999-04-01 00:00:00
abstract:BACKGROUND:Ultrasonic excitation (US) was applied to glass ionomer cement (GIC) during early set time to increase the advantageous properties of this material. PURPOSE:The aim of this in vitro study was to assess the inner porosity of GIC after US. STUDY DESIGN:A total of 16 specimens, for each material, were prepare...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.20873
更新日期:2011-01-01 00:00:00
abstract::Nowadays the processes of crossing of different mammalian species are well characterized in light of genetics, and possibility of reproduction. Generally, lack detailed studies on changes in anatomy and histology of internal systems of hybrids. Bison bonasus hybrid is an interspecific species between the bull of Europ...
journal_title:Microscopy research and technique
pub_type: 杂志文章
doi:10.1002/jemt.23516
更新日期:2020-10-01 00:00:00