Ultrastructural characteristics of spermatogenesis in Pallas's mastiff bat, Molossus molossus (Chiroptera: Molossidae).

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

authors： Coldebella CR,Santos-Pinto L,Zuanon AC

更新日期：2011-01-01 00:00:00

abstract：:Protein expression patterns are a primary determinant of tissue function and in this study we developed methods to study protein expression over macroscopic distances at subcellular levels of detail. Using the mammalian lens as a model tissue system, we show that by combining two-photon microscopy with novel image mon...

journal_title：Microscopy research and technique

authors： Jacobs MD,Donaldson PJ,Cannell MB,Soeller C

更新日期：2003-09-01 00:00:00

abstract：:This study was performed to observe microstructures of the rat lung, using a synchrotron radiation beam and to compare findings with histological observations. X-ray refraction images from ex-vivo ventilating rat lung were obtained with an 8 KeV monochromatic beam and 20-mum thick CsI(Tl) scintillation crystal. The vi...

journal_title：Microscopy research and technique

authors： Jheon S,Youn HS,Kim HT,Choi GH,Kim JK

更新日期：2006-08-01 00:00:00

abstract：:High speed data registration is required for the study of fluorescence resonance energy transfer in real time as well as fast dynamic intra- and inter-cellular signaling events. Multispectral confocal spinning disk microscopy provides a high resolution method for performing such real time live cell imaging. However, o...

journal_title：Microscopy research and technique

authors： Perrine KA,Lamarche BL,Hopkins DF,Budge SE,Opresko LK,Wiley HS,Sowa MB

更新日期：2007-04-01 00:00:00

abstract：:In mammals, the neurohypophysial hormone oxytocin (OT) is released into the bloodstream during labor and lactation to promote uterine contraction and milk ejection, respectively. Electrophysiological studies have established that OT neurons fire in brief, synchronized bursts during this release. During pregnancy and l...

journal_title：Microscopy research and technique

authors： Armstrong WE,Stern JE,Teruyama R

更新日期：2002-01-15 00:00:00

abstract：:Human adipose derived stem cells have shown chondrogenic differentiation potential in cartilage tissue engineering in combination with biomimetic materials. In this study, the chondrogenic potential of a porous gelatin based scaffold genipin (GNP) crosslinked was investigated in human mesenchymal stem cells obtained f...

journal_title：Microscopy research and technique

authors： Focaroli S,Teti G,Salvatore V,Durante S,Belmonte MM,Giardino R,Mazzotti A,Bigi A,Falconi M

更新日期：2014-11-01 00:00:00

abstract：:Transmission electron microscopy (TEM) is the main tool for exploring the intracellular damage and organelle distribution. The cause of producing embryo cytoplsamic fragmentation is not completely understood. Since the fragments have detrimental effects on embryo development, the ultrastructural analysis of fragments ...

journal_title：Microscopy research and technique

authors： Halvaei I,Khalili MA,Nottola SA

更新日期：2016-06-01 00:00:00

abstract：:Regeneration of skeletal parts of fossil echinoderms is reviewed. Among regenerations of various fossil echinoderms, those of crinoids are most common and many examples have been reported. Mesozoic and Cenozoic crinoids, the subclass Articulata, are characterized by the dominance of muscular articulations in the arms ...

journal_title：Microscopy research and technique

authors： Oji T

更新日期：2001-12-15 00:00:00

abstract：:Transmission electron microscopy (TEM) is a very useful and commonly used microscopy technique, used especially for the characterization of nanoparticles. However, the identification of the magnetic nanoparticle could be thought problematic in TEM analysis, due to the fact that the magnetic nanoparticles are usually f...

journal_title：Microscopy research and technique

authors： Dogan Ü,Çiftçi H,Cetin D,Suludere Z,Tamer U

更新日期：2017-02-01 00:00:00

abstract：:Sensory mechanisms in teeth are not well understood and may involve pulpal-neural interactions. Tooth cells that proliferate in vitro have polyclonal immunoreactivity (IR) for glial fibrillary acidic protein (GFAP), growth-associated protein (GAP-43), and vimentin, plus glial-like ion channels. Here, we analyzed GFAP-...

journal_title：Microscopy research and technique

authors： Byers MR,Maeda T,Brown AM,Westenbroek RE

更新日期：2004-12-01 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

authors： Kemp A

更新日期：2002-12-01 00:00:00

abstract：:To compare the smear layer removal ability and mineral content of root canal dentine after initial irrigation with NaOCl and final irrigation with MTAD, QMix, and 17% EDTA. Forty extracted human maxillary incisors before root canal preparation and irrigation with NaOCl were randomly divided into four groups (n = 10) a...

journal_title：Microscopy research and technique

authors： Nogo-Živanović D,Kanjevac T,Bjelović L,Ristić V,Tanasković I

更新日期：2019-06-01 00:00:00

abstract：:When 20-day-old rats are placed on a vitamin A deficient diet (VAD) for a period of 10 weeks, the seminiferous tubules are found to contain only Sertoli cells, a few residual A0, A1 spermatogonia, and preleptotene spermatocytes (PL). The type A1 spermatogonia and PL spermatocytes are arrested in their G2 phase. In VAD...

journal_title：Microscopy research and technique

authors： Ismail N,Morales CR

更新日期：1992-01-01 00:00:00

abstract：:Ultramicrotomy has found novel application in materials research using transmission electron microscopy, for both analytical and high resolution work. Specimens 20-50 nm in thickness with lateral dimensions of up to 100 microns may routinely be prepared, with the additional advantage of precise area location for cross...

journal_title：Microscopy research and technique

authors： Glanvill SR

更新日期：1995-07-01 00:00:00

abstract：:Transmission X-ray microscopy (TXM) is a rapidly developing technique with the capability of nanoscale three dimensional (3D) real-space imaging. Combined with the wide range in energy tunability from synchrotron sources, TXM enables the retrieval of 3D microstructural information with elemental/chemical sensitivity t...

journal_title：Microscopy research and technique

authors： Kao TL,Shi CY,Wang J,Mao WL,Liu Y,Yang W

更新日期：2013-11-01 00:00:00

abstract：:Orthodontic appliances causes specific alterations in oral environment, including reduction of pH, increase of dental biofilm and elevation of salivary microbial levels, causing an increased risk for dental caries. This study evaluated, using microbial culture and scanning electron microscopy (SEM), the in situ contam...

journal_title：Microscopy research and technique

authors： Bagatin CR,Andrucioli MCD,Ferreira JTL,Matsumoto MAN,da Silva RAB,da Silva LAB,Romano FL,Nelson-Filho P

更新日期：2017-05-01 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

authors： Lal R,Lin H

更新日期：2001-02-01 00:00:00

abstract：:Epidemiologic studies have associated cardiovascular morbidity and mortality with ambient particulate air pollution. Particles smaller than 100 nm in diameter (ultrafine particles) are present in the urban atmosphere in very high numbers yet at very low mass concentration. Organs beyond the lungs are considered as tar...

journal_title：Microscopy research and technique

authors： Kapp N,Kreyling W,Schulz H,Im Hof V,Gehr P,Semmler M,Geiser M

更新日期：2004-04-01 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

authors： Iqbal T,Shah SK,Ullah F,Mehmood S,Zeb MA

更新日期：2020-07-01 00:00:00

abstract：:An understanding of the internal morphology of the ant mandible is important in explaining the relationship between the exocrine system and the behavioral and phylogenetic characteristics of different subfamilies of Formicidae. In this study, we investigated the occurrence of intramandibular glands in ants from the Po...

journal_title：Microscopy research and technique

authors： Martins LC,Serrão JE

更新日期：2011-08-01 00:00:00

abstract：:Several studies support the role of Western-style diet (WD) in inflammatory bowel disease (IBD). Toll-like receptors/NOD-like receptors (TLRs/NLRs) are important to maintain a healthy epithelium as well as inducing inflammation. Given that dietary factors influence IBD development, that epithelial dysfunction is thoug...

journal_title：Microscopy research and technique

authors： Sardi C,Luchini P,Emanuelli A,Giannoni A,Martini E,Manara LM,Sfondrini L,Kallikourdis M,Sommariva M,Rumio C

更新日期：2017-06-01 00:00:00

abstract：:In this study we report for the first time the localization of a photoreceptor pigment in the cilia of the colored heterotrich ciliates Blepharisma japonicum red and blue form, Fabrea salina, and Stentor coeruleus, as result of a confocal microscopy investigation. Optical sectioning confocal microscopy has been used f...

journal_title：Microscopy research and technique

authors： Colombetti G,Checcucci G,Lucia S,Usai C,Ramoino P,Bianchini P,Pesce M,Vicidomini G,Diaspro A

更新日期：2007-12-01 00:00:00

abstract：:This study evaluated the fluoride (F) release and remineralizing potential of varnishes containing sodium fluoride (5% NaF), 5% NaF with CPP-ACP and 5% NaF with TCP in early caries lesions in primary teeth. To determine the F release at 1, 4, 6, 24, 72, and 168 hr, strips were covered with the varnishes and immersed i...

journal_title：Microscopy research and technique

authors： Soares-Yoshikawa AL,Varanda T,Iwamoto AS,Kantovitz KR,Puppin-Rontani RM,Pascon FM

更新日期：2020-12-05 00:00:00

abstract：:A re-examination and modification of the very old oblique illumination technique has resulted in a method for contrast enhancement in microscopes, diffracted-light contrast (DLC), which provides high-contrast, high-resolution images of unstained biological material. The technique, which utilizes the diffracted light f...

journal_title：Microscopy research and technique

authors： Piekos WB

更新日期：1999-08-15 00:00:00

abstract：:Nowadays, infertility is no longer considered as an unsolvable disorder due to progresses in germ cells derived from stem lineage with diverse origins. Technical and ethical challenges push researchers to investigate various tissue sources to approach more efficient gametes. The purpose of the current study is to inve...

journal_title：Microscopy research and technique

authors： Shirzeyli MH,Khanlarkhani N,Amidi F,Shirzeyli FH,Aval FS,Sobhani A

更新日期：2017-11-01 00:00:00

abstract：:Ascidian embryos are useful for examining how events that occur during fertilization and cleavage affect gastrulation because they gastrulate early in development, during the seventh cleavage. In ascidians, both dorsal-ventral and anterior-posterior axes are determined before first cleavage. The dorsal-ventral axis is...

journal_title：Microscopy research and technique

authors： Swalla BJ

更新日期：1993-11-01 00:00:00

abstract：:Oxygen-annealed surfaces of sapphire with low Miller indices ((0001), [1010], [1120], [1011]) have been studied in both transmission electron microscopy (TEM) and reflection electron microscopy (REM) configurations. The significance of REM diffraction conditions for the determination of the nature of the step heights ...

journal_title：Microscopy research and technique

authors： Ndubuisi GC,Liu J,Cowley JM

更新日期：1992-03-01 00:00:00

abstract：:The mammary adenocarcinoma cell line MTLn3 is chemotactic towards epidermal growth factor (EGF), and this induced motility is thought to promote breast cancer invasion and metastasis. Stimulation of MTLn3 cells with EGF results in the extension of a flat, thin structure filled with filamentous actin and termed a lamel...

journal_title：Microscopy research and technique

authors： Bailly M,Condeelis JS,Segall JE

更新日期：1998-12-01 00:00:00

abstract：:To study the effect of microwaves on immunolabeling, ultrathin cryosections or diluted antibodies were irradiated prior to antibody application, and gold labeling was quantified. In addition, affinity purified, polyclonal antibodies and protein A-gold were applied to ultrathin cryosections of aldehyde-fixed material i...

journal_title：Microscopy research and technique

authors： Chicoine L,Webster P

更新日期：1998-07-01 00:00:00

abstract：:Substance P (SP) after binding to the neurokinin-1 (NK-1) receptor regulates many biological functions. Both SP and the NK-1 receptor are expressed in human normal placenta cells, monocytes, and macrophages. However, to our knowledge, the presence of both SP and the NK-1 receptor in macrophages of the placenta, the Ho...

journal_title：Microscopy research and technique

authors： Muñoz M,Carranza A,Pavón A,Anderson G,Coveñas R

更新日期：2013-12-01 00:00:00