A descriptive study to provide evidence of the teratogenic and cellular effects of sibutramine and ephedrine on cardiac- and liver-tissue of chick embryos.

abstract：:E-cadherin and its associated cytoplasmic proteins alpha-, beta-, and gamma-catenin, play a crucial role in epithelial cell-cell adhesion and in the maintenance of tissue architecture. Perturbation in the expression or function of any of these molecules results in loss of intercellular adhesion, with possible conseque...

journal_title：Microscopy research and technique

authors： El-Bahrawy MA,Pignatelli M

更新日期：1998-11-01 00:00:00

abstract：:STM tips made from antiferromagnetic MnNi have been used to investigate the atomic structure of the (001) and (111) surfaces of Fe3O4. The clean (001) surface displays a ( radical2 x radical2)R45 degrees superlattice, which is attributed to charge-ordering on the surface, where Fe(2+)-Fe2+ and Fe(3+)-Fe3+ dimers can b...

journal_title：Microscopy research and technique

authors： Murphy S,Ceballos SF,Mariotto G,Berdunov N,Jordan K,Shvets IV,Mukovskii YM

更新日期：2005-02-01 00:00:00

abstract：:Zinc is one of the most abundant oligoelements in the living cell. It appears tightly bound to metallothioneins, loosely bound to some metalloproteins and nucleic acids, or even as free ion. Small amounts of zinc ions (in the nanomolar range) regulate a plentitude of enzymatic proteins, receptors, and transcription fa...

journal_title：Microscopy research and technique

authors： López-García C,Varea E,Palop JJ,Nacher J,Ramirez C,Ponsoda X,Molowny A

更新日期：2002-03-01 00:00:00

abstract：:The peripheral arterial chemoreceptors of the carotid body participate in the ventilatory responses to hypoxia and hypercapnia, the arousal responses to asphyxial apnea, and the acclimatization to high altitude. In response to an excitatory stimuli, glomus cells in the carotid body depolarize, their intracellular calc...

journal_title：Microscopy research and technique

authors： Gauda EB

更新日期：2002-11-01 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

authors： Memarpour M,Soltanimehr E,Sattarahmady N

更新日期：2015-09-01 00:00:00

abstract：:This study evaluated the effect of chitosan, zirconium oxide, and hydroxyapatite on the apatite-like forming ability, porosity, and bond-strength of calcium-aluminate cements (C). Three hundred bovine root-slices were assigned to one of five groups, according to the material: MTA, C, C + chitosan (Cchi), C + zirconium...

journal_title：Microscopy research and technique

authors： Saltareli FM,Leoni GB,de Lima Ferraz Aguiar N,de Faria NS,Oliveira IR,Bachmann L,Raucci-Neto W

更新日期：2020-12-22 00:00:00

abstract：:Although the Geographical Information System (GIS), which integrates computerized drawing computer assisted design (CAD) and relational databases (data base management system (DBMS)), is best known for applications in geographical and planning cartography, it can also use many kinds of information concerning the terri...

journal_title：Microscopy research and technique

authors： Scocco P,Brusaferro A,Catorci A

更新日期：2012-07-01 00:00:00

abstract：:In the present work, we propose the use of the Laser Scanning Confocal Microscopy (LSCM) to determine the effect of water repellents on rock's pore-network configuration and interconnection. The rocks studied are sandstones of Miocene age, a building material that is commonly found in the architectural heritage of Tun...

journal_title：Microscopy research and technique

authors： Zoghlami K,Gómez-Gras D,Corbella M,Darragi F

更新日期：2008-11-01 00:00:00

abstract：:This ultrastructural study showed that nonisotopic methanolic hafnium chloride and aqueous lead solution was an excellent new electron stain for enhancing TEM contrasts of fungal and plant cell structures. The ultrastructural definition provided by the new stain was often superior to that provided by conventional stai...

journal_title：Microscopy research and technique

authors： Ikeda K,Inoue K,Kanematsu S,Horiuchi Y,Park P

更新日期：2011-09-01 00:00:00

abstract：:The mechanism of the candidacidal activity of histatins 3 and 5 (Hst) is still a matter of debate. Previous studies have indicated that Hst induce cell permeabilization, generation of reactive oxygen species (ROS) by mitochondria, inhibition of the respiratory chain, and energy-dependent cytotoxic release of ATP. On t...

journal_title：Microscopy research and technique

authors： Diaz G,Polonelli L,Conti S,Messana I,Cabras T,Putzolu M,Falchi AM,Fadda ME,Cosentino S,Isola R

更新日期：2005-04-01 00:00:00

abstract：:We present de novo studies and review published efforts from our laboratory, spanning 12 years (from 1988 to 2000), where we have used ultrastructural approaches to study the functional anatomy of the microvasculature in man and animals in health and disease. These efforts have defined a new endothelial cell organelle...

journal_title：Microscopy research and technique

authors： Feng D,Nagy JA,Dvorak HF,Dvorak AM

更新日期：2002-06-01 00:00:00

abstract：:The effect of nerve growth factor (NGF) on ontogenesis of frog mast cells was investigated in vivo by histochemical, morphometric, and ultrastructural analysis. Three groups of tadpoles at various stages of development were used. In the first group, the larvae received i.p. injections of 1 ng NGF/g; the second group r...

journal_title：Microscopy research and technique

authors： Baccari GC,Raucci F,Di Fiore MM,Monteforte R

更新日期：2003-12-01 00:00:00

abstract：:We have summarized current knowledge on the aging of the immune system in three vertebrate groups: fish, amphibians and birds. Available data are few due to difficulties in studying ageing in natural populations and in accurately determining age. In all vertebrates, the most obvious evidence of the senescence of lymph...

journal_title：Microscopy research and technique

authors： Torroba M,Zapata AG

更新日期：2003-12-15 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

authors： Howe JM,Rozeveld SJ

更新日期：1992-11-01 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：:The principal functions of the gastrointestinal tract mucosa include nutrient absorption, protein and fluid secretion, and the regulated symbiosis with intraluminal contents. Research in epithelial biology has benefited significantly from the use of cultured monolayer preparations, which closely replicate the structur...

journal_title：Microscopy research and technique

authors： Gilbert RJ,Hoffman M,Capitano A,So PT

更新日期：2000-10-15 00:00:00

abstract：:Worldwide, breast cancer (BrCa) is currently the leading cause of deaths associated to malignant lesions in adult women. Given that some studies have mentioned that peritumoral adipocytes may contribute to breast carcinogenesis, present work sought to quantitative evaluate the morphometry of these cells in a group of ...

journal_title：Microscopy research and technique

authors： Suárez-Nájera LE,Chanona-Pérez JJ,Valdivia-Flores A,Marrero-Rodríguez D,Salcedo-Vargas M,García-Ruiz DI,Castro-Reyes MA

更新日期：2018-02-01 00:00:00

abstract：:Growth rings were used to determine the root age of medicinal Paeonia lactiflora from four producing areas, and their corresponding paeoniflorin content were measured based on the identification of ages. Different P. lactiflora root samples of different ages were collected from the four major growing areas in China: B...

journal_title：Microscopy research and technique

authors： Zha LP,Cheng ME,Peng HS

更新日期：2012-09-01 00:00:00

abstract：:Acquisition of a great number of energy-filtered images in a TEM (EFTEM) around the characteristic signal with a low energy-selecting slit allows display of the electron energy loss (EEL)-spectrum of regions of interest (ROIs) of a sample. These EEL-spectra can be submitted to the different treatments already in use f...

journal_title：Microscopy research and technique

authors： Quintana C,Lechaire JP,Bonnet N,Risco C,Carrascosa JL

更新日期：2001-04-15 00:00:00

abstract：:This review article focuses on the ontogeny and the regulatory mechanisms involved in the modulation of the intracellular events governing the assembly and delivery of lipoproteins in human gut. The human fetal intestine organizes villi covered with well-differentiated enterocytes during the end of the first trimester...

journal_title：Microscopy research and technique

authors： Levy E,Ménard D

更新日期：2000-05-15 00:00:00

abstract：:Fluorescence correlation spectroscopy (FCS) has become an increasingly important measurement tool for biological and biomedical investigations, with the capability to assay molecular dynamics and interactions both in vitro and within living cells. Information recovery in FCS requires an accurate characterization and c...

journal_title：Microscopy research and technique

authors： Wu J,Berland K

更新日期：2007-08-01 00:00:00

abstract：:The neurotrophins are a diverse family of peptides which activate specific tyrosine kinase-linked receptors. Over the past five decades, since the pioneering work of Levi-Montalcini and colleagues, the critical role that neurotrophins play in shaping the developing nervous system has become increasingly established. T...

journal_title：Microscopy research and technique

authors： Behrens MM,Strasser U,Lobner D,Dugan LL

更新日期：1999-05-15 00:00:00

abstract：:In the Oriental hornet Vespa orientalis (Hymenoptera, Vespinae), there is on the dorsal side of the thorax, beneath the mesoscutum plate of the prothorax and around the median notal suture, a lump that, in the course of hornet activity, is warmer by 9 degrees C from the surrounding milieu and by up to 6 degrees C from...

journal_title：Microscopy research and technique

authors： Plotkin M,Ermakov NY,Volynchik S,Barkay Z,Bergman DJ,Ishay JS

更新日期：2005-12-15 00:00:00

abstract：:Central to the control of vascular resistance in the systemic and pulmonary circulation and at the solid organ level is the function of the endothelial-derived vasomediators, endothelin-1 (ET-1) and nitric oxide. Regulation of steady-state levels of ET-1 and endothelial nitric oxide synthase (eNOS) mRNAs represents an...

journal_title：Microscopy research and technique

authors： Mawji IA,Marsden PA

更新日期：2003-01-01 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

authors： Neher RA,Neher E

更新日期：2004-06-01 00:00:00

abstract：:The implantation of breast prostheses for both aesthetic and reconstructive purposes has been growing exponentially in the last 20 years. Safety and prosthesis lifespan are majorly debated issues in relation to the correlated long-term complications. Mainly the periprosthetic capsule that develops around the implant i...

journal_title：Microscopy research and technique

authors： Calderan L,Panettiere P,Accorsi D,Marchi A,Bernardi P,Benati D,Conti G,Chirumbolo S,Zingaretti N,Parodi PC,Cisterna B,Sbarbati A

更新日期：2020-12-10 00:00:00

abstract：:GABA is a likely feedback transmitter from H1 horizontal cells to cone photoreceptors in fish retinas. Spinules arise from H1 cell dendrites in light-adapted retinas, are correlated with responses attributed to feedback, and have been proposed to be the GABA release sites. We used mAb 62-3G1, an antibody against the b...

journal_title：Microscopy research and technique

authors： Yazulla S,Studholme KM

更新日期：1997-01-01 00:00:00

abstract：:Contraction of muscular tissue requires the synchronized shortening of myofibers arrayed in complex geometrical patterns. Imaging such myofiber patterns with diffusion-weighted MRI reveals architectural ensembles that underlie force generation at the organ scale. Restricted proton diffusion is a stochastic process res...

journal_title：Microscopy research and technique

authors： Hoffman MP,Taylor EN,Aninwene GE 2nd,Sadayappan S,Gilbert RJ

更新日期：2018-02-01 00:00:00

abstract：:The ultrastructure of adult human articular cartilage matrix is reexamined in tissue processed according to recently improved cryotechniques [Studer et al. (1995) J. Microsc., 179:321-332]. In truely vitrified tissue, a network of fine cross-banded filaments (10-15 nm in diameter) with a periodicity characteristic of ...

journal_title：Microscopy research and technique

authors： Hunziker EB,Michel M,Studer D

更新日期：1997-05-15 00:00:00

abstract：:Broiler chicken and laying hen livers were fixed using a simple technique of in situ puncture perfusion of cacodylate-buffered fixative, which allowed characterisation of the fine structure of hepatic parenchyma, hepatocytes, bile ductules, and, in particular, the sinusoidal cells including endothelial, Kupffer, and I...

journal_title：Microscopy research and technique

authors： Ghoddusi M,Kelly WR

更新日期：2004-09-01 00:00:00