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... centrifugation at 2515,5 g for 5 minutes at 10 °C, and washed three times using 10 mL of sterilized phosphate buffer (pH = 7.4). The pellets were then resuspended in 1 mL of sterilized phosphate buffer. Characterization tests were done in two steps (Okeke et al., 2000; Yasmeen et al., 2009). Firstly ...
Bone physiology
Bone physiology

... Fig. 1-81 illustrates an osteon with osteocytes (OC) residing in osteocyte lacunae in the lamellar bone. The osteocytes connect via canaliculi (can) which contain cytoplasmatic projections of the osteocytes. A Haversian canal (HC) is seen in the middle of the osteon. Fig. 1-82 illustrates an area ...
Circulatory and Respiratory Systems
Circulatory and Respiratory Systems

... BEGINNING AND INTERMEDIATE SPEAKERS Build ...
Rapid Structural Changes and Acidification of Guard Cell Vacuoles
Rapid Structural Changes and Acidification of Guard Cell Vacuoles

... PIKfyve inhibitor inhibits plant PI3P5K activity (Figure 4A). Arabidopsis FAB1C and its conserved lipid kinase domain were expressed in bacteria, and PtdIns(3,5)P2 synthesis was examined in vitro. Both the full-length enzyme and lipid kinase domain successfully produced PtdIns(3,5)P2 from the substr ...
A novel role for microglia in minimizing excitotoxicity | BMC Biology
A novel role for microglia in minimizing excitotoxicity | BMC Biology

... whose function is a longstanding mystery. Unlike other glial cells - the astrocytes and oligodendrocytes - micro­ glia derive from cells of the immune system. As such, they act as first responders to direct CNS damage and peripheral insults, a response characterized by rapid hypertrophy of their lon ...
Effective Controls for RNA Interference (RNAi) Experiments using
Effective Controls for RNA Interference (RNAi) Experiments using

... Other Control siRNAs: Chemically modified control siRNAs Does a control siRNA need to have the same modification as the test siRNA? Yes. A control siRNA should be as similar to the test siRNA as possible. For example, if the test siRNA is chemically modified to improve specificity of target binding, ...
Explore - NC Science Wiki
Explore - NC Science Wiki

... system controls body processes by using electrical impulses via a network of nerves. The endocrine system uses chemical messages called hormones, which are released into the blood and regulate many bodily processes. The endocrine and nervous systems are two control systems that keep the body in home ...
classification of medical devices and IVDs
classification of medical devices and IVDs

... This guideline provides the classification rules for the classification of medical devices (Non-IVDs) and IVDs in South Africa. The aim of this Guideline is to assist manufacturers, importers, distributors and wholesalers of medical devices and IVDs in the classification of medical devices and IVDs ...
Earthworm Dissection – Ch 15
Earthworm Dissection – Ch 15

... Procedure: The Internal Earthworm: Directions: Place the worm in the dissecting pan with the dorsal surface facing up. Stretch out the worm’s body and pin it to the dissection pan using dissecting pins. Place one pin through the first segment and a second pin through the last segment. Pin the worm f ...
Predicting enzyme targets for cancer drugs by profiling
Predicting enzyme targets for cancer drugs by profiling

... reaction by analyzing its fluxes in different cellular environments such as NCI-60 cancer cell lines. Thus, each reaction can be represented as its reaction fluxes in the different cells. This is the reaction representation method what we call reaction profiling. By this method, we can construct the ...
PDF
PDF

... gradient that scales with tissue size. Proliferation, in turn, occurs in a mitotic wave in front of the source, whereas behind it, cells arrest and differentiate. We found that cells divide when their signaling levels have increased by around 60%. This simple mechanism quantitatively explains the pr ...
Page 1 Exam I Exam II Today: A. Urinary System B. Respiratory
Page 1 Exam I Exam II Today: A. Urinary System B. Respiratory

... Glomerular Filtration: 1) Blood pressure = driving force 2) Molecules filtered < 3 nm diameter 3) Glomerular filtration rate (GFR): • Regulation of GFR: a) Myogenic control (intrinsic) b) Tubuloglomerular feedback mechanism (intrinsic) c) Sympathetic nervous system (extrinsic) d) Renin-angtiotensin ...
Aubé et al., J Immunol, 2014
Aubé et al., J Immunol, 2014

... pathophysiological hallmarks of multiple sclerosis (MS), its animal model experimental autoimmune encephalomyelitis (EAE), and neuromyelitis optica (NMO). However, their contribution to disease initiation and development remains unclear. In this study, we induced EAE in lys-eGFP-ki mice and performe ...
PowerPoint - Scranton Prep Biology
PowerPoint - Scranton Prep Biology

...  In reptiles and mammals, oxygen-poor blood flows through the pulmonary circuit to pick up oxygen through the lungs  In amphibians, oxygen-poor blood flows through a pulmocutaneous circuit to pick up oxygen through the lungs and skin  Oxygen-rich blood delivers oxygen through the ...
Classifying Monerans and Protists
Classifying Monerans and Protists

... 27. Fossilized remains of bacterial mats called stromatolites provide clues about these ancient organisms. 28. Today there are a wide variety of bacteria. Let us take a look at some of the characteristics of them. 29. Graphic Transition – Characteristics of Monerans 30. You Compare! Describe the sha ...
Cells Producing - The Journal of Immunology
Cells Producing - The Journal of Immunology

... with Tconvs and APCs To identify the source of IL-17, we used naive Tconvs from C57BL/ 6 mice and Tregs from B6.PL C57BL/6 congenic mice that carry the Thy1a (Thy1.1) allele and can be recognized easily by flow cytometric analysis using a Thy1.1-specific Ab. Naive Tconv and Treg populations used in ...
CLL Information for Patients and Caregivers Chronic Lymphocytic Leukemia 2012
CLL Information for Patients and Caregivers Chronic Lymphocytic Leukemia 2012

... Blood cells are made in the marrow. They begin as stem cells. Stem cells become red cells, white cells and platelets in the marrow. Then the red cells, white cells and platelets enter the blood. Platelets form plugs that help stop bleeding at the site of an injury. Red cells carry oxygen around the ...
Yoga and Insulin Resistance:
Yoga and Insulin Resistance:

... Many of the studies mentioned above has methodological issues, small sample size, array of confounding variables. The likelihood of confounding factors increases greatly in dealing with any psychological factors. As a consequence, a more studies are needed in this field to establish the positive eff ...
identification of a macrophage antigen
identification of a macrophage antigen

... typhi. Furthermore, Listeria-immune T cellsdid not bind to Listeria monocytogenes attached to the dish in the absence of macrophages. The inability of immobilized Listeria monocytogenes to support binding was also observed when the mitogenic protein and proliferation assays were used to assess T cel ...
Intrinsic Regulation of Cambial Growth
Intrinsic Regulation of Cambial Growth

... Intrinsic Regulation of Cambial Growth standing attitude that research unable to solve “real world” forestry problems in the short term falls within the realm of “toy research” (Horn 1880; Sprague and Sprague 1976). Some research areas relevant to secondary growth nevertheless have begun to flouris ...
Gantz and Lee 2015 - units.miamioh.edu
Gantz and Lee 2015 - units.miamioh.edu

... were not able to measure the amount of water lost per tissue sample during ex vivo desiccation. In lieu of a direct measure of tissue water loss, we measured changes in the osmotic pressure of the hemolymph in which the tissues were bathed. Since this mirrors natural conditions by relying on the inc ...
Isolated cell behavior drives the evolution of
Isolated cell behavior drives the evolution of

... concentrations formed microcolonies, while cells exposed to antibiotic concentrations higher than the scMIC grew as filaments. Filament formation has previously been observed in bacteria exposed to antibiotics (Chung et al, 2009; Yao et al, 2012); filamentation leads to cell death and the failure to ...
The Ultrastructure of Megakaryocytes and Blood
The Ultrastructure of Megakaryocytes and Blood

... Structural characteristics of the mitochondria have a bearing on the biochemical properties of platelets. As compared with the mitochondria of most other cells, those in platelets are small, few in number, and possess few cristae. The magnitude of these characteristics appears to be directly proport ...
The neutrophil in vascular inflammation
The neutrophil in vascular inflammation

... neutrophils would move out of the vasculature and away from the vessel. Once they have emigrated, neutrophils need to migrate toward the bacterial focus or the dying cells without being distracted by what would then be an opposing IL-8 gradient coming from the vasculature. Receptor internalization o ...
Sequential depolarization of root cortical and stelar cells induced by
Sequential depolarization of root cortical and stelar cells induced by

... Na+ was administered) turned out to be a trait that correlated strongly with the ability to thrive at high salt concentrations among a collection of barley cultivars, and K+ flux measurements could be employed to screen for salt tolerance of a particular cultivar (Chen et al. 2005). Na+-induced effl ...
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Organ-on-a-chip

An organ-on-a-chip (OC) is a multi-channel 3-D microfluidic cell culture chip that simulates the activities, mechanics and physiological response of entire organs and organ systems. It constitutes the subject matter of significant biomedical engineering research, more precisely in bio-MEMS. The convergence of labs-on-chips (LOCs) and cell biology has permitted the study of human physiology in an organ-specific context, introducing a novel model of in vitro multicellular human organisms. One day, they will perhaps abolish the need for animals in drug development and toxin testing.Although multiple publications claim to have translated organ functions onto this interface, the movement towards this microfluidic application is still in its infancy. Organs-on-chips will vary in design and approach between different researchers. As such, validation and optimization of these systems will likely be a long process. Organs that have been simulated by microfluidic devices include the heart, the lung, kidney, artery, bone, cartilage, skin and more.Nevertheless, building valid artificial organs requires not only a precise cellular manipulation, but a detailed understanding of the human body’s fundamental intricate response to any event. A common concern with organs-on-chips lies in the isolation of organs during testing. ""If you don’t use as close to the total physiological system that you can, you’re likely to run into troubles"" says William Haseltine, founder of Rockville, Maryland. Microfabrication, microelectronics and microfluidics offer the prospect of modeling sophisticated in vitro physiological responses under accurately simulated conditions.
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