PubMed Journals Articles About "Apical Pharmaceutical Corporation" RSS

19:28 EST 13th December 2018 | BioPortfolio

Apical Pharmaceutical Corporation PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Apical Pharmaceutical Corporation articles that have been published worldwide.

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Showing "Apical Pharmaceutical Corporation" PubMed Articles 1–25 of 2,300+

Evolution of root apical meristem structures in vascular plants: plasmodesmatal networks.

The apical meristem generates indeterminate apical growth of the stem and root of vascular plants. Our previous examination showed that shoot apical meristems (SAMs) can be classified into two types based on plasmodesmatal networks (PNs), which are important elements in symplasmic signaling pathways within the apical meristem. Here, we examined the PNs of root apical meristems (RAMs) in comparison with those of SAMs.

Human and rat precision-cut intestinal slices as ex vivo models to study bile acid uptake by the apical sodium-dependent bile acid transporter.

Etiologic role of root canal infection in apical periodontitis and its relationship with clinical symptomatology.

Evidence shows the polymicrobial etiology of endodontic infections, in which bacteria and their products are the main agents for the development, progression, and dissemination of apical periodontitis. Microbial factors in necrotic root canals (e.g., endotoxin) may spread into apical tissue, evoking and supporting a chronic inflammatory load. Thus, apical periodontitis is the result of the complex interplay between microbial factors and host defense against invasion of periradicular tissues. This review of ...

Conditioned fear stress increases bone resorption in apical periodontitislesions in Wistar male rats.

Because the impact of conditioned fear stress on apical bone resorption is unknown, the aim of the current studywas to use a rat model to evaluate the impact of conditioned fear stress on the bone resorption of inflammatory apical periodontitis lesions.

Rab17 Regulates apical delivery of hepatic transcytotic vesicles.

A major focus for our laboratory is identifying the molecules and mechanisms that regulate basolateral-to-apical transcytosis in polarized hepatocytes. Our most recent studies have focused on characterizing the biochemical and functional properties of the small rab17 GTPase. We determined that rab17 is a mono-sumoylated protein and that this modification likely mediates selective interactions with the apically-located syntaxin 2. Using polarized hepatic WIF-B cells exogenously expressing wild type, dominant...

Magnetic resonance imaging of third molars in forensic age estimation: comparison of the Ghent and Graz protocols focusing on apical closure.

To compare the Ghent and Graz magnetic resonance imaging (MRI) protocols for third molars, focusing on the assessment of apical closure. To study the influence of (1) voxel size and (2) head fixation using a bite bar. To compare both protocols with a ground truth of apical development.

Par3 interacts with Prickle3 to generate apical PCP complexes in the vertebrate neural plate.

Vertebrate neural tube formation depends on the coordinated orientation of cells in the tissue known as planar cell polarity (PCP). In the neural plate, PCP is marked by the enrichment of the conserved proteins Prickle3 and Vangl2 at anterior cell boundaries. Here we show that the apical determinant Par3 is also planar polarized in the neuroepithelium, suggesting a role for Par3 in PCP. Consistent with this hypothesis, interference with Par3 activity inhibited asymmetric distribution of PCP junctional comp...

Effects of Various Pharmaceutical Excipients on the Intestinal Transport and Absorption of Sulfasalazine, a Typical Substrate of BCRP Transporter.

Breast cancer resistance protein (BCRP) transporter is an efflux transporter that utilizes energy from ATP hydrolysis to push its substrates, regardless of the concentration gradient. Its presence on the apical membrane of the intestinal mucosa is a major obstacle for the intestinal absorption of its substrates. In this study, we examined the effects of various pharmaceutical excipients on the intestinal transport and absorption of sulfasalazine, a BCRP substrate. Four excipients, including 0.05% and 0.075%...

On hormonal regulation of the dynamic apical hook development.

To deal with the ever-changing environment, sessile plants adapt diverse and plastic organ structures during postembryonic development. Among these, the apical hook forms shortly after seed germination of most dicots, protects the delicate shoot meristem from mechanical damage during soil emergence. For decades, this structure has been taken as an excellent model for investigating the mechanisms underlying differential growth of plant tissues. Here, we summarize recent advances in hormonal regulation of api...

Adjuvant agents enhance round window membrane permeability to dexamethasone and modulate basal to apical cochlear gradients.

Glucocorticoids have direct anti-inflammatory, anti-oxidant and anti-apoptotic effects on cochlear hair cells. Cochlear glucocorticoid therapy has gained particular attention for its ability to enhance the protection of residual hearing following hearing preservation cochlear implantation. Local drug delivery methods achieve high drug concentrations within the inner ear fluids but are reliant upon diffusion across the round window membrane. Diffusion has been shown to demonstrate large individual variabilit...

Chronic alcohol consumption increases inflammation and osteoclastogenesis in apical periodontitis.

To investigate the effect of chronic alcohol consumption on apical periodontitis in rats.

Newly Synthesized Polycystin 1 Takes Different Trafficking Pathways to the Apical and Ciliary Membranes.

Mutations in the genes encoding polycystin 1 (PC1) and polycysin 2 (PC2) cause Autosomal Dominant Polycystic Kidney Disease (ADPKD). These transmembrane proteins co-localize in the primary cilia of renal epithelial cells, where they may participate in sensory processes. PC1 is also found in the apical membrane when expressed in cultured epithelial cells. PC1 undergoes autocatalytic cleavage, producing an extracellular N-terminal fragment that remains non-covalently attached to the transmembrane C-terminus. ...

Mechanism of luminal ATP activated chloride secretion in a polarized epithelium.

There are both secretory and absorptive pathways working in tandem to support ionic movement driving fluid secretion across epithelia. The mechanisms exerting control of fluid secretion in the oviduct is yet to be fully determined. This study explored the role of apical or luminal extracellular ATP (ATPe)-stimulated ion transport in an oviduct epithelium model, using the Ussing chamber short-circuit current (Isc) technique. Basal Isc in oviduct epithelium in response to apical ATPe comprises both chloride s...

Apical PtdIns(4,5)P is required for ciliogenesis and suppression of polycystic kidney disease.

Cilia are hair-like structures that function like antennae to detect chemical and mechanical signals in the environment. Recently, phosphoinositides were shown to play an important role in cilia assembly and disassembly. However, the precise molecular and cellular mechanisms underlying this process remain unknown. Here, we report that suppression of apical phosphatidylinositol 4,5- bisphosphate [PtdIns(4,5)P], by overexpressing apically targeted PtdIns(4,5)P phosphatase or by knocking down type I phosphatid...

Prevalence of Different Types of Apical Root Canal Morphology and their Treatment Recommendations in an Institute.

Canals can be of different shapes in cross section including round canals, oval canals, long oval canals or ribbon shaped canals. Recesses of nonround canals may not be included in the round preparation created by rotary instruments and thus they remain unprepared. The aim of this study included determination of shape and taper of the apical root canal based on diameter at different levels. Measurement of the diameter of the root canal at one, two and three mm cross sections from the apex of the tooth were ...

A Tuba/Cdc42/Par6A complex is required to ensure singularity in apical domain formation during enterocyte polarization.

Apico-basal polarity establishment is a seminal process in tissue morphogenesis. To function properly it is often imperative that epithelial cells limit apical membrane formation to a single domain. We previously demonstrated that signaling by the small GTPase Cdc42, together with its guanine nucleotide exchange factor (GEF) Tuba, is required to prevent the formation of multiple apical domains in polarized Ls174T:W4 cells, a single cell model for enterocyte polarization. To further chart the molecular signa...

Pro-inflammatory and anti-inflammatory cytokine expression in post-treatment apical periodontitis.

This study evaluated the expression of pro-inflammatory (IL-1β, IL-6, IFN-γ and TNF-α) and anti-inflammatory (IL-4 and TGF-β) cytokines in apical periodontitis lesions. Correlations between these cytokines and clinical and cone-beam computed tomographic (CBCT) data were also assessed.

Projecting Pharmaceutical Expenditure in EU5 to 2021: Adjusting for the Impact of Discounts and Rebates.

Within (European) healthcare systems, the predominant goal for pharmaceutical expenditure is cost containment. This is due to a general belief among healthcare policy makers that pharmaceutical expenditure-driven by high prices-will be unsustainable unless further reforms are enacted.

Applications of various analytical techniques in quality control of pharmaceutical excipients.

Although excipients are pharmacologically inert substances, still they are integral and significant ingredients of a pharmaceutical formulation. Their amount and concentration level along with the active pharmaceutical ingredients is of utmost importance to decide the pharmacokinetics and stability of a dosage form. It is becoming progressively more important to illustrate the purity of excipients throughout the development and manufacture of pharmaceutical products as the safety and efficacy of the pharmac...

WDR5 Stabilizes Actin Architecture to Promote Multiciliated Cell Formation.

The actin cytoskeleton is critical to shape cells and pattern intracellular organelles, which collectively drives tissue morphogenesis. In multiciliated cells (MCCs), apical actin drives expansion of the cell surface necessary to host hundreds of cilia. The apical actin also forms a lattice to uniformly distribute basal bodies. This apical actin network is dynamically remodeled, but the molecules that regulate its architecture remain poorly understood. We identify the chromatin modifier, WDR5, as a regulato...

Applications of proteomics in pharmaceutical research and development.

The significance of proteomics in the pharmaceutical industry has increased since overcoming initial difficulties. This review discusses recent proteomics publications from pharmaceutical companies to identify new trends in proteomics applications to research and development. Applications of proteomics such as chemical proteomics, protein expression profiling, targeted protein quantitation, analysis of protein-protein interactions and post-translational modification are widely used by various sections of th...

Electrocardiographic predictors of myocardial fibrosis and apical hypertrophic cardiomyopathy.

Electrocardiography (ECG) may be an efficacious diagnostic and prognostic tool in hypertrophic cardiomyopathy (HCM). This study aimed to investigate association between deep T-wave inversion (TWI) and apical HCM, and between fragmented QRS (fQRS) complex and myocardial fibrosis in patients with HCM.

Solid-state insight into the action of a pharmaceutical solvate: structural, thermal and dissolution analysis of indinavir sulfate ethanolate.

The crystal structure of indinavir sulfate, a pharmaceutical administered as an ethanol solvate, is presented, revealing a unique channel/ionic solvate structure to be characteristic of the compound. The properties of the material with regard to thermal treatment and water adsorption follow closely from the structure. The in situ amorphization of the pharmaceutical upon contacting liquid water is observed and highlights the unique dissolution enhancement of marketing the crystalline solvate dosage. Through ...

Comparative Evaluation of Endovac and Conventional Irrigating Syringe on Apical Extrusion in Primary Molars. An in vitro Study.

The present study was undertaken to evaluate and compare the apical extrusion of irrigant and depth of irrigant penetration into dentine using the EndoVac irrigating system and manual irrigation system in primary molar teeth.

Comparison of Rheological and Sedimentation Behavior of Commercially Available Suspending Vehicles for Oral Pharmaceutical Preparations.

A pharmaceutical suspension is a semi-liquid dosage form suitable for patients being unable to swallow solid medicines such as tablets and capsules. A vehicle used for the preparation of pharmaceutical oral suspensions preferably shows pseudo-plastic behavior. In a product that gets thinner with agitation and thicker upon standing, slow settlement of the suspended active pharmaceutical ingredient is combined with good pourability and rehomogenization. This gives the best guarantee of uniformity of dose for ...

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