745,580 results match your criteria Physiological and biochemical zoology : PBZ[Journal]


High Circulating Alarin Levels Are Associated with Presence of Metabolic Syndrome.

Cell Physiol Biochem 2018 Dec 6;51(5):2041-2051. Epub 2018 Dec 6.

Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University and Chongqing Clinical Research Center for Geriatrics, Chongqing,

Background/aims: Alarin has been reported to be related with increased food intake and body weight. The relationship of circulating Alarin with insulin resistance or metabolic syndrome (MetS), however, is unknown. This study aimed to investigate the physiological role of Alarin and its association with MetS in humans. Read More

View Article
December 2018
1 Read

Simultaneous analysis of acetylcarnitine, proline, hydroxyproline, citrulline, and arginine as potential plasma biomarkers to evaluate NSAIDs-induced gastric injury by liquid chromatography-tandem mass spectrometry.

J Pharm Biomed Anal 2018 Nov 24;165:101-111. Epub 2018 Nov 24.

School of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea. Electronic address:

Although major adverse effects associated with nonsteroidal anti-inflammatory drugs (NSAIDs) are gastric injury, assessment of NSAIDs-induced gastrointestinal adverse effects is mostly dependent on endoscopy due to the lack of plasma biomarkers. Several amino acids associated with collagenase activity and gastric mucosal mass have been suggested as plasma biomarker candidates for gastric injury. Therefore, this study aimed to develop a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the plasma biomarker candidates, i. Read More

View Article
November 2018
2 Reads

Food up-take and reproduction performance of Daphnia magna under the exposure of Bisphenols.

Ecotoxicol Environ Saf 2018 Dec 3;170:47-54. Epub 2018 Dec 3.

Key laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education) & School of Engineering, China Pharmaceutical University, Nanjing 211198, China. Electronic address:

Because the application of Bisphenol A (BPA) was restricted, many substitutes, such as Bisphenol F (BPF) and Bisphenol S (BPS), were developed as BPA substitutes. Therefore, environmental impacts of BPA and its substitutes on aquatic organisms should be concerned, especially their combined toxicity. In this study, the impacts of BPA, BPF, BPS and their mixture on the feeding behavior, reproduction and physiological function of daphnids were synthetically evaluated, involving the duration and mode of exposure. Read More

View Article
December 2018
3 Reads

Physiological and biochemical effect of silver on the aquatic plant Lemna gibba L.: Evaluation of commercially available product containing colloidal silver.

Aquat Toxicol 2018 Nov 27;207:52-62. Epub 2018 Nov 27.

Josip Juraj Strossmayer University of Osijek, Department of Biology, Ulica cara Hadrijana 8/A, HR-31000, Osijek, Croatia. Electronic address:

This paper aims to evaluate the effects of a product containing colloidal silver in the aquatic environment, using duckweed Lemna gibba as a model plant. Therefore, growth parameters, photosynthetic pigments content and protein content as physiological indices were evaluated. Changes in the content of non-enzymatic antioxidants and activity of several antioxidant enzymes, alongside with the accumulation of hydrogen peroxide and lipid peroxidation end-products were assessed to explore the potential of colloidal silver to induce oxidative stress. Read More

View Article
November 2018
1 Read

Characterization of A dextran-budesonide prodrug for inhalation therapy.

Eur J Pharm Sci 2018 Dec 3. Epub 2018 Dec 3.

Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL 32610, United States of America. Electronic address:

Reducing the dosing frequency of corticosteroids may increase compliance and increase pulmonary targeting. The objective of this study was to evaluate whether a high molecular weight dextran-budesonide conjugate might be suitable for pulmonary slow release of the otherwise fast absorbed budesonide. An array of dextran-spacer-budesonide conjugates was prepared that differed in the molecular weight of dextran (20 kDa or 40 kDa) and the length of the dicarboxylic spacer (succinic, glutaric, and adipic anhydride). Read More

View Article
December 2018
1 Read

Lipid-gene regulatory network reveals coregulations of triacylglycerol with phosphatidylinositol/lysophosphatidylinositol and with hexosyl-ceramide.

Biochim Biophys Acta Mol Cell Biol Lipids 2018 Dec 3. Epub 2018 Dec 3.

State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:

Lipid homeostasis is important for executing normal cellular functions and maintaining physiological conditions. The biophysical properties and intricate metabolic network of lipids underlie the coordinated regulation of different lipid species in lipid homeostasis. To reveal the homeostatic response among different lipids, we systematically knocked down 40 lipid metabolism genes in Drosophila S2 cells by RNAi and profiled the lipidomic changes. Read More

View Article
December 2018

22kHz and 55kHz ultrasonic vocalizations differentially influence neural and behavioral outcomes: Implications for modeling anxiety via auditory stimuli in the rat.

Behav Brain Res 2018 Dec 3. Epub 2018 Dec 3.

Developmental Neuropsychobiology Lab, Department of Psychology, Northeastern University, 360 Huntington Ave NI125, Boston, MA, 02115, United States. Electronic address:

The communicative role of ultrasonic vocalizations (USVs) in rats is well established, with distinct USVs indicative of different affective states. USVs in the 22 kHz range are typically emitted by adult rats when in anxiety- or fear-provoking situations (e.g. Read More

View Article
December 2018

Enhanced anxiety-like behavior emerges with weight gain in male and female obesity-susceptible rats.

Behav Brain Res 2018 Dec 3. Epub 2018 Dec 3.

Department of Pharmacology, University of Michigan, Ann Arbor, MI, USA; Department of Biology, Hope College, Holland, MI, USA; Department of Biomedical Sciences, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA.

Epidemiological data suggest that body mass index and obesity are strong risk factors for depression and anxiety. However, it is difficult to separate cause from effect, as predisposition to obesity may enhance susceptibility to anxiety, or vice versa. Here, we examined the effect of diet and obesity on anxiety-like behaviors in male and female selectively bred obesity-prone and obesity-resistant rats, and outbred Sprague-Dawley rats. Read More

View Article
December 2018
1 Read

Cytochrome P450 epoxygenases and cancer: A genetic and a molecular perspective.

Pharmacol Ther 2018 Dec 3. Epub 2018 Dec 3.

Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee;; Department of Veterans Affairs, Nashville, TN, USA. Electronic address:

Cytochrome CYP450 epoxygenases catalyze the epoxidation of polyunsaturated fatty acids including arachidonic acid, eicosapentaenoic acid, and docosahexaenoic acid. The arachidonic acid-derived products are potent pro-angiogenic lipids and promote tumor development and growth. On the other hand, eicosapentaenoic acid- and docosahexaenoic acid-derived products inhibit angiogenesis and play a protective role in certain pathological conditions including cancer. Read More

View Article
December 2018
2 Reads

Tuning store-operated calcium entry to modulate Ca-dependent physiological processes.

Biochim Biophys Acta Mol Cell Res 2018 Dec 3. Epub 2018 Dec 3.

Secretory Physiology Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA. Electronic address:

The intracellular calcium signaling processes are tightly regulated to ensure the generation of calcium signals with the specific spatiotemporal characteristics that are required for regulating various cell functions. Compartmentalization of the molecular components involved in generating these signals at discrete intracellular sites ensures the signaling specificity and transduction fidelity of the signal for regulating downstream effector processes. Store-operated calcium entry (SOCE) is ubiquitously present in cells and is critical for essential cell functions in a variety of tissues. Read More

View Article
December 2018
5 Reads

Human-powered pop-up resting shelter for sampling cavity-resting mosquitoes.

Acta Trop 2018 Dec 3. Epub 2018 Dec 3.

Entomology and Nematology Department, University of Florida, 1881 Natural Area Dr., Gainesville, FL, 32608, United States.

Methods for collecting mosquitoes without the use of electricity are advantageous in remote field locations where electricity is not present or is unreliable. Here we report on the development and evaluation of a human-powered system for sampling cavity-resting mosquitoes. The system is composed of a spring-steel framed resting shelter and pneumatic lid that "pumps" mosquitoes resting within the shelter into a capture chamber when the resting shelter is manually compressed. Read More

View Article
December 2018
1 Read

Proton leak regulates mitochondrial reactive oxygen species generation in endothelial cell activation and inflammation - A novel concept.

Arch Biochem Biophys 2018 Dec 3. Epub 2018 Dec 3.

Centers for Metabolic Disease Research, Cardiovascular Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA. Electronic address:

Mitochondria are capable of detecting cellular insults and orchestrating inflammatory responses. Mitochondrial reactive oxygen species (mtROS) are intermediates that trigger inflammatory signaling cascade in response to our newly proposed conditional DAMP (damage associated molecular patterns). We recently reported that increased proton leak regulates mtROS generation and thereby exert physiological and pathological activation of endothelial cells. Read More

View Article
December 2018
2 Reads
3.017 Impact Factor

Physiological Models of Human Neuronal Development and Disease.

Neuron 2018 Dec;100(5):1025-1027

Department of Neurology, University of California, San Francisco, San Francisco, CA 94143, USA; The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94143, USA. Electronic address:

Human neural network development occurs at stages inaccessible to longitudinal monitoring. By transplanting human neurons to the adult mouse brain, recent studies explore human neural circuit formation in realistic cellular and physiological environments, establishing new models for human neurodevelopmental disorders. Read More

View Article
December 2018

Comparison of GnRH agonist and hCG for priming in vitro maturation cycles in cancer patients undergoing urgent fertility preservation.

PLoS One 2018 6;13(12):e0208576. Epub 2018 Dec 6.

Department of Reproductive Medicine & Fertility Preservation, Hôpital Jean Verdier, Bondy, France.

In vitro maturation (IVM) of oocytes retrieved at germinal vesicle or Metaphase I stage, followed by vitrification of Metaphase II (MII) oocytes, has recently emerged as an option for urgent fertility preservation (FP). Priming is usually achieved with an injection of hCG, 10,000 IU, 36 hours before retrieval. This study aimed to assess a new method of priming, using GnRH agonists, and compare it to hCG, in cancer patients undergoing urgent FP. Read More

View Article
December 2018

Global analysis of erythroid cells redox status reveals the involvement of Prdx1 and Prdx2 in the severity of beta thalassemia.

PLoS One 2018 6;13(12):e0208316. Epub 2018 Dec 6.

Universidade Federal de São Carlos (UFSCar), Departamento de Genética e Evolução, São Carlos, Brazil.

β-thalassemia is a worldwide distributed monogenic red cell disorder, characterized by an absent or reduced beta globin chain synthesis. The unbalance of alpha-gamma chain and the presence of pathological free iron promote severe oxidative damage, playing crucial a role in erythrocyte hemolysis, exacerbating ineffective erythropoiesis and decreasing the lifespan of red blood cells (RBC). Catalase, glutathione peroxidase and peroxiredoxins act together to protect RBCs from hydrogen peroxide insult. Read More

View Article
December 2018

Climatic factors shaping intraspecific leaf trait variation of a neotropical tree along a rainfall gradient.

PLoS One 2018 6;13(12):e0208512. Epub 2018 Dec 6.

Departamento de Botânica, Universidade Federal de Minas Gerais, ICB-UFMG, Belo Horizonte, Brazil.

Intraspecific trait variation has been singled out as an important mechanism by which individuals can cope with environmental variations and avoid local extinctions. Here we evaluate variation in metamer traits (i.e. Read More

View Article
December 2018

Effects of cold on murine brain mitochondrial function.

PLoS One 2018 6;13(12):e0208453. Epub 2018 Dec 6.

Department of Zoology, University of British Columbia, Vancouver, British Columbia, CAN.

Therapeutic hypothermia is a strategy that reduces metabolic rate and brain damage during clinically-relevant hypoxic events. Mitochondrial respiration is compromised by hypoxia, with deleterious consequences for the mammalian brain; however, little is known about the effects of reduced temperature on mitochondrial metabolism. Therefore, we examined how mitochondrial function is impacted by temperature using high resolution respirometry to assess electron transport system (ETS) function in saponin-permeabilized mouse brain at 28 and 37°C. Read More

View Article
December 2018

Comparison of efficacy of SHENQI compound and rosiglitazone in the treatment of diabetic vasculopathy analyzing multi-factor mediated disease-causing modules.

PLoS One 2018 6;13(12):e0207683. Epub 2018 Dec 6.

Teaching Hospital, School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China.

Atherosclerosis-predominant vasculopathy is a common complication of diabetes with high morbidity and high mortality, which is ruining the patient's daily life. As is known to all, traditional Chinese medicine (TCM) SHENQI compound and western medicine rosiglitazone play an important role in the treatment of diabetes. In particular, SHENQI compound has a significant inhibitory effect on vascular lesions. Read More

View Article
December 2018

An integrated method for quantitative morphometry and oxygen transport modelling in striated muscle.

J Appl Physiol (1985) 2018 Dec 6. Epub 2018 Dec 6.

Biomedical Sciences, University of Leeds, United Kingdom.

Identifying structural limitations in O transport is primarily restricted by current methods employed to characterise the nature of physiological remodelling. Inadequate resolution or breadth of available data has impaired development of routine diagnostic protocols and effective therapeutic strategies. Understanding O transport within striated muscle faces major challenges, most notably in quantifying how well individual fibres are supplied by the microcirculation, which has necessitated exploring tissue O supply using theoretical modelling of diffusive exchange. Read More

View Article
December 2018
1 Read

Titin as a force generating muscle protein under regulatory control.

J Appl Physiol (1985) 2018 Dec 6. Epub 2018 Dec 6.

Institute of Physiology II, University of Muenster, Germany.

Titin has long been recognized as a mechanical protein in muscle cells that has a main function as a molecular spring in the contractile units, the sarcomeres. Recent work suggests that the titin spring contributes to muscle contraction in a more active manner than previously thought. In this review, we highlight this property, specifically the ability of the immunoglobulin-like (Ig) domains of titin to undergo unfolding-refolding transitions when isolated titin molecules or skeletal myofibrils are held at physiological force levels. Read More

View Article
December 2018

In vivo monitoring of intracellular Ca dynamics in the pancreatic β-cells of zebrafish embryos.

Islets 2018 Dec 6:1-18. Epub 2018 Dec 6.

a Institute of Molecular Biology/CMBI , University of Innsbruck , Innsbruck , Austria.

Assessing the response of pancreatic islet cells to glucose stimulation is important for understanding β-cell function. Zebrafish are a promising model for studies of metabolism in general, including stimulus-secretion coupling in the pancreas. We used transgenic zebrafish embryos expressing a genetically-encoded Ca sensor in pancreatic β-cells to monitor a key step in glucose induced insulin secretion; the elevations of intracellular [Ca]. Read More

View Article
December 2018
1 Read

Workload and Performance: Associations, Insensitivities, and Dissociations.

Hum Factors 2018 Dec 6:18720818809590. Epub 2018 Dec 6.

University of Central Florida, Orlando.

Objective:: The aim of this study was to distill and define those influences under which change in objective performance level and the linked cognitive workload reflections of subjective experience and physiological variation either associate, dissociate, or are insensitive, one to another.

Background:: Human factors/ergonomics frequently employs users' self-reports of their own conscious experience, as well as their physiological reactivity, to augment the understanding of changing performance capacity. Under some circumstances, these latter workload responses are the only available assessment information to hand. Read More

View Article
December 2018
3 Reads

Aromatic Nitrogen Mustard-Based Autofluorescent Amphiphilic Brush Copolymer as pH-Responsive Drug Delivery Vehicle.

Biomacromolecules 2018 Dec 6. Epub 2018 Dec 6.

Delivery of clinically approved nonfluorescent drugs is facing challenges because it is difficult to monitor the intracellular drug delivery without incorporating any integrated fluorescence moiety into the drug carrier. The present investigation reports the synthesis of a pH-responsive autofluorescent polymeric nano-scaffold for the administration of nonfluorescent aromatic nitrogen mustard chlorambucil (CBL) drug into the cancer cells. Copolymerization of poly(ethylene glycol) (PEG) appended styrene and CBL conjugated N-substituted maleimide monomers enables the formation of well-defined luminescent alternating copolymer. Read More

View Article
December 2018
1 Read

Evaluation of the Serum Levels of Galectin-3 in Patients with Oral Lichen Planus Disease.

Oral Dis 2018 Dec 6. Epub 2018 Dec 6.

Oral and Dental Disease Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.

Objectives: Galectin-3, a member of beta-galactoside-binding proteins, can be found in cytoplasm and nucleus as well as extracellularly in various tissues and involved in many physiological and pathological processes. We aimed to measure the serum levels of galectin-3 in oral lichen planus (OLP) disease and compare the result with that observed in healthy ones.

Materials And Methods: In this cross-sectional study, the serum levels of galectin-3 were measured in 56 healthy individuals and 53 pathologically proven OLP patients including those with atrophic/erosive (33 cases) or reticular (20 cases) lesions, using enzyme-linked immunosorbent assay (ELISA). Read More

View Article
December 2018
1 Read

Luteal granulosa cells from natural cycles are more capable of maintaining their viability, steroidogenic activity and LH receptor expression than those of stimulated IVF cycles.

Hum Reprod 2018 Dec 6. Epub 2018 Dec 6.

Graduate School of Health Sciences, Koc University, Davutpasa, Topkapi, Istanbul, Turkey.

Study Question: Are there any differences in the molecular characteristics of the luteal granulosa cells (GC) obtained from stimulated versus non-stimulated (natural) IVF cycles that may help explain the defective luteal phase in the former?

Summary Answer: Luteal GC of stimulated IVF cycles, particularly those of agonist-triggered antagonist cycles, are less viable ex vivo, express LH receptor and anti-apoptotic genes at lower levels, undergo apoptosis earlier and fail to maintain their estradiol (E2) and progesterone (P4) production in comparison to natural cycle GC.

What Is Known Already: Luteal function is defective in stimulated IVF cycles, which necessitates P4 and/or hCG administration (known as luteal phase support) in order to improve clinical pregnancy rates and prevent miscarriage. The luteal phase becomes shorter and menstruation begins earlier than a natural cycle if a pregnancy cannot be achieved, indicative of early demise of corpus luteum (premature luteolysis). Read More

View Article
December 2018

Computer vision-based phenotyping for improvement of plant productivity: A machine learning perspective.

Gigascience 2018 Dec 6. Epub 2018 Dec 6.

Department of Information Engineering and Computer Science, University of Trento, Via Sommarive 9, 38123 Trento, Italy.

Employing computer vision to extract useful information from images and videos is becoming a key technique for identifying phenotypic changes in plants. In this report, we review the emerging aspects of computer vision for automated plant phenotyping. Recent advances in image analysis empowered by machine learning-based techniques, including convolutional neural network-based modeling, have expanded their application to assist high-throughput plant phenotyping. Read More

View Article
December 2018

A secretory pathway kinase regulates sarcoplasmic reticulum Ca homeostasis and protects against heart failure.

Elife 2018 Dec 6;7. Epub 2018 Dec 6.

Department of Pharmacology, University of California, San Diego, La Jolla, United States.

Ca signaling is important for many cellular and physiological processes, including cardiac function. Although sarcoplasmic reticulum (SR) proteins involved in Ca signaling have been shown to be phosphorylated, the biochemical and physiological roles of protein phosphorylation within the lumen of the SR remain essentially uncharacterized. Our laboratory recently identified an atypical protein kinase, Fam20C, which is uniquely localized to the secretory pathway lumen. Read More

View Article
December 2018
2 Reads

General decapping activators target different subsets of inefficiently translated mRNAs.

Elife 2018 Dec 6;7. Epub 2018 Dec 6.

Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, United States.

The Dcp1-Dcp2 decapping enzyme and the decapping activators Pat1, Dhh1, and Lsm1 regulate mRNA decapping, but their mechanistic integration is unknown. We analyzed the gene expression consequences of deleting or or the C-terminal domain, and found that: i) the Dcp2 C-terminal domain is an effector of both negative and positive regulation; ii) rather than being global activators of decapping, Pat1, Lsm1, and Dhh1 directly target specific subsets of yeast mRNAs and loss of the functions of each of these factors has substantial indirect consequences for genome-wide mRNA expression; and iii) transcripts targeted by Pat1, Lsm1, and Dhh1 exhibit only partial overlap, are generally translated inefficiently, and, as expected, are targeted to decapping-dependent decay. Our results define the roles of Pat1, Lsm1, and Dhh1 in decapping of general mRNAs and suggest that these factors may monitor mRNA translation and target unique features of individual mRNAs. Read More

View Article
December 2018

Effects of High- and Low-LET Radiation on Human Hematopoietic System Reconstituted in Immunodeficient Mice.

Radiat Res 2018 Dec 6. Epub 2018 Dec 6.

a   Columbia University Medical Center, New York, New York.

Over the last 50 years, a number of important physiological changes in humans who have traveled on spaceflights have been catalogued. Of major concern are the short- and long-term radiation-induced injuries to the hematopoietic system that may be induced by high-energy galactic cosmic rays encountered on interplanetary space missions. To collect data on the effects of space radiation on the human hematopoietic system in vivo, we used a humanized mouse model. Read More

View Article
December 2018
1 Read

Cyclic AMP-dependent protein kinase A and EPAC mediate VIP and Secretin stimulation of PAK4 and activation of Na+, K+-ATPase in pancreatic acinar cells.

Am J Physiol Gastrointest Liver Physiol 2018 Dec 6. Epub 2018 Dec 6.

National Institutes of Health,Niddk.ddb, United States.

Rat pancreatic acinar cells possess only the p21-activated kinase (PAKs), PAK4 of the Group-II p21-activated kinase (PAK) and it is activated by gastrointestinal hormones/neurotransmitters stimulating PLC and by a number of growth factors. However, little is known generally of cAMP-agents causing PAK4 activation and there are no studies with gastrointestinal hormones/neurotransmitters activating cAMP cascades. In the present study, we examined the ability of VIP and secretin, which stimulate cAMP generation in pancreatic acini, to stimulate PAK4 activation, the signaling cascades involved and its possible role in activating Na+,K+ATPase. Read More

View Article
December 2018

Impaired Hypoxic Pulmonary Vasoconstriction in a Mouse Model of Leigh Syndrome.

Am J Physiol Lung Cell Mol Physiol 2018 Dec 6. Epub 2018 Dec 6.

Department of Anesthesia, Massachusetts General Hospital, United States.

Hypoxic pulmonary vasoconstriction (HPV) is a physiological vasomotor response that maintains systemic oxygenation by matching perfusion to ventilation during alveolar hypoxia. Although mitochondria appear to play an essential role in HPV, the impact of mitochondrial dysfunction on HPV remains incompletely defined. Mice lacking the mitochondrial complex I (CI) subunit Ndufs4 (Ndufs4-/-) develop a fatal progressive encephalopathy and serve as a model for Leigh syndrome, the most common mitochondrial disease in children. Read More

View Article
December 2018

Hybrid Nanomaterials of Conjugated Polymers and Albumin for Precise Photothermal Therapy.

ACS Appl Mater Interfaces 2018 Dec 6. Epub 2018 Dec 6.

Heretofore, conjugated polymers (CPs) attract considerable attention in photothermal therapy (PTT). Although various CPs with different structures have been reported, the suboptimal circulation persistence and biodistribution limit their efficacy in tumor treatment. Human serum albumin (HSA), an endogenous plasm protein, has been widely functioned as a carrier for therapeutic agents. Read More

View Article
December 2018

Proteins regulating microvesicle biogenesis and multidrug resistance in cancer.

Authors:
J Taylor M Bebawy

Proteomics 2018 Dec 6:e1800165. Epub 2018 Dec 6.

Discipline of Pharmacy, Graduate School of Health, The University of Technology Sydney, Sydney, Australia.

Microvesicles (MV) are emerging as important mediators of intercellular communication. These signalling vectors are implicated in physiological processes ranging from vascular homeostasis to inflammation. They also play an important role in the cancer pathology and progression. Read More

View Article
December 2018
1 Read

The Applications of 3d Printing in Pulmonary Drug Delivery and Treatment of Respiratory Disorders.

Curr Pharm Des 2018 Dec 6. Epub 2018 Dec 6.

Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Pde, Parkville VIC. Australia.

Background: Pulmonary diseases are the third leading cause of morbidity worldwide, however treatment and diagnosis of these diseases continues to be challenging due to the complex anatomical structure as well as physiological processes in the lungs.

Methods: 3D printing is progressively finding new avenues in the medical field and this technology is constantly being used for diseases where diagnosis and treatment heavily rely on the thorough understanding of complex structural-physiology relationships. The structural and functional complexity of the pulmonary system makes it well suited to 3D printing technology. Read More

View Article
December 2018
2 Reads

Microclimate and Physiological Effects in the Roosts of Cave Dwelling Bats: Implications in Roost Selection and Conservation in Sarawak, Malaysian Borneo.

Zoolog Sci 2018 Dec;35(6):521-527

Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia.

Bats play crucial ecological and economic roles. However, this group of mammals is largely threatened due to anthropogenic activities inside or around their caves. In the present study, we investigate the effects of cave microclimate and physiological parameters on bat roost preference in Fairy Cave Nature Reserve (Fairy Cave NR). Read More

View Article
December 2018
1 Read

Emerging Design and Characterization Guidelines for Polymer-Based Infrared Photodetectors.

Acc Chem Res 2018 Dec 6. Epub 2018 Dec 6.

Department of Electrical and Computer Engineering , University of California San Diego , 9500 Gilman Drive , La Jolla , California 92093-0407 , United States.

Infrared photodetectors are essential to many applications, including surveillance, communications, process monitoring, and biological imaging. The short-wave infrared (SWIR) spectral region (λ = 1-3 μm) is particularly powerful for health monitoring and medical diagnostics because biological tissues show low absorbance and minimal SWIR autofluorescence, enabling greater penetration depth and improved resolution in comparison with visible light. However, current SWIR photodetection technologies are largely based on epitaxially grown inorganic semiconductors, which are costly, require complex processing, and impose cooling requirements incompatible with wearable electronics. Read More

View Article
December 2018

Cardiotoxicity and myocardial infarction-associated DNA damage induced by thiamethoxam in vitro and in vivo: Protective role of Trigonella foenum-graecum seed-derived polysaccharide.

Environ Toxicol 2018 Dec 5. Epub 2018 Dec 5.

Laboratory of Enzyme Engineering and Microbiology, National Engineering School of Sfax, University of Sfax, Sfax, Tunisia.

The risk of pesticides on the human health and environment has drawn increasing attention. Today, new tools are developed to reduce pesticide adverse effects. This study aimed to evaluate the toxicity induced by, thiamethoxam (TMX), and the cytoprotective effect of a novel polysaccharide, named fenugreek seed water polysaccharide (FWEP) in vitro using H9c2 cardiomyoblastes and in vivo using Wistar rat model. Read More

View Article
December 2018

Physical response of dogs supplemented with fish oil during a treadmill training programme.

J Anim Physiol Anim Nutr (Berl) 2018 Dec 5. Epub 2018 Dec 5.

Laboratory of Veterinary Physiotherapy (LAFIVET), School of Veterinary Sciences (FCV), National University of La Plata (UNLP), Buenos Aires, Argentina.

The rise in popularity of dog sports competitions has led to the evaluation of improvements in dog physical performance. The potential benefit of dietary supplementation with fish oil (FO) on the physical performance of human beings and horses has been reported. However, such effect has not been studied in dogs. Read More

View Article
December 2018

Astrocyte elevated gene-1 induces autophagy in diabetic cardiomyopathy through upregulation of KLF4.

J Cell Biochem 2018 Dec 5. Epub 2018 Dec 5.

Department of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China.

Background: Astrocyte elevated gene-1 (AEG-1), also known as metadherin, 3D3, and lysine-rich carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) coisolated, has emerged as an important oncogene that is overexpressed in a variety of cancers. Previous studies revealed that AEG-1 is also involved in multiple physiological and pathological processes, such as development, inflammation, neurodegeneration, migraine, and Huntington's disease. However, the function of AEG-1 in diabetic cardiomyopathy (DCM) has not been reported yet. Read More

View Article
December 2018

Endoplasmic reticulum stress is transmissible in vitro between cells of the central nervous system.

J Neurochem 2018 Dec 6. Epub 2018 Dec 6.

Department of Microbiology, Immunology and Cell Biology, West Virginia University School of Medicine, Morgantown, WV.

Improper protein folding and trafficking are common pathological events in neurodegenerative diseases that result in the toxic accumulation of misfolded proteins within the lumen of the endoplasmic reticulum (ER). While low-level stimulation of the unfolded protein response (UPR) is protective, sustained UPR activation resulting from prolonged ER stress can promote neurotoxicity. The cell-autonomous mechanisms of the UPR have been extensively characterized. Read More

View Article
December 2018

Structure and function of dual-source cholinergic modulation in early vision.

J Comp Neurol 2018 Dec 5. Epub 2018 Dec 5.

Department of Neurobiology, Duke University School of Medicine, Durham, North Carolina.

Behavioral states such as arousal and attention have profound effects on sensory processing, determining how - even whether - a stimulus is perceived. This state-dependence is believed to arise, at least in part, in response to inputs from subcortical structures that release neuromodulators such as acetylcholine, often non-synaptically. The mechanisms that underlie the interaction between these non-synaptic signals and the more point-to-point synaptic cortical circuitry are not well understood. Read More

View Article
December 2018

The effects of five types of tea solutions on epiboly process, neural and cardiovascular development, and locomotor capacity of zebrafish.

Cell Biol Toxicol 2018 Dec 5. Epub 2018 Dec 5.

Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin, 300071, China.

The effects of teas on embryonic development are still known little. The objective of this study was to compare and analyze developmental effects of green tea, delicate flavor oolong tea, strong flavor oolong tea, black tea, and pu'er tea using zebrafish embryos. Embryos were exposed in tea solutions from one-cell stage; the morphology, locomotor capacity, and gene expression of embryos or larvae were analyzed. Read More

View Article
December 2018

Validation of the physiological background correction method for the suppression of the spill-in effect near highly radioactive regions in positron emission tomography.

EJNMMI Phys 2018 Dec 5;5(1):34. Epub 2018 Dec 5.

Biomedical Imaging Science Department, School of Medicine, University of Leeds, Leeds, West Yorkshire, UK.

Background: Positron emission tomography (PET) imaging has a wide applicability in oncology, cardiology and neurology. However, a major drawback when imaging very active regions such as the bladder is the spill-in effect, leading to inaccurate quantification and obscured visualisation of nearby lesions. Therefore, this study aims at investigating and correcting for the spill-in effect from high-activity regions to the surroundings as a function of activity in the hot region, lesion size and location, system resolution and application of post-filtering using a recently proposed background correction technique. Read More

View Article
December 2018

Distinctive role of ACVR1 in dentin formation: requirement for dentin thickness in molars and prevention of osteodentin formation in incisors of mice.

J Mol Histol 2018 Dec 5. Epub 2018 Dec 5.

Department of Oral Pathology, School and Hospital of Stomatology, Jilin University, Changchun, 130021, China.

Dentin is a major component of teeth that protects dental pulp and maintains tooth health. Bone morphogenetic protein (BMP) signaling is required for the formation of dentin. Mice lacking a BMP type I receptor, activin A receptor type 1 (ACVR1), in the neural crest display a deformed mandible. Read More

View Article
December 2018
1 Read

Hindbrain induction and patterning during early vertebrate development.

Cell Mol Life Sci 2018 Dec 5. Epub 2018 Dec 5.

Koret School of Veterinary Medicine, The Robert H Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, 76100, Rehovot, Israel.

The hindbrain is a key relay hub of the central nervous system (CNS), linking the bilaterally symmetric half-sides of lower and upper CNS centers via an extensive network of neural pathways. Dedicated neural assemblies within the hindbrain control many physiological processes, including respiration, blood pressure, motor coordination and different sensations. During early development, the hindbrain forms metameric segmented units known as rhombomeres along the antero-posterior (AP) axis of the nervous system. Read More

View Article
December 2018

Sodium dichloroisocyanurate delays ripening and senescence of banana fruit during storage.

Chem Cent J 2018 Dec 5;12(1):131. Epub 2018 Dec 5.

Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, People's Republic of China.

Banana as a typical climacteric fruit soften rapidly, resulting in a very short shelf life after harvest. Sodium dichloroisocyanurate (NaDCC) is reported to be an effectively antibacterial compound. Here, we investigated the effects of NaDCC on ripening and senescence of harvested banana fruit at physiological and molecular levels. Read More

View Article
December 2018

Sympathetic nervous system as a target for aging and obesity-related cardiovascular diseases.

Geroscience 2018 Dec 5. Epub 2018 Dec 5.

Department of Physiological Sciences, Center for Veterinary Health Sciences, Oklahoma State University, 277 McElroy Hall, Stillwater, OK, 74078, USA.

Chronic sympathetic nervous system overactivity is a hallmark of aging and obesity and contributes to the development of cardiovascular diseases including hypertension and heart failure. The cause of this chronic sympathoexcitation in aging and obesity is multifactorial and centrally mediated. In this mini-review, we have provided an overview of the key and emerging central mechanisms contributing to the pathogenesis of sympathoexcitation in obesity and healthy aging, specifically focusing on hypertension. Read More

View Article
December 2018
  • Page 1 of 14912