Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 44 for “"alveoli"”.
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Studies of Lung Micromechanics via Hyperpolarized 3He Diffusion NMR
… occur due to changes in the size and/or shape of alveoli and alveolar ducts or by alveolar recruitment and derecruitment. In this dissertation lung morphometry is performed via 3He diffusion MRI in order to measure the average alveolar depth and alveolar duct radius at multiple levels of both …
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Pengaruh ekstrak etanol daun sirsak (Annona muricata L.) terhadap gambaran histologi kelenjar mammae mencit (Mus musculus) yang di induksi 7,12-dimentilbenz(a)antrasen (DMBA) secara in vivo
… tebal epitel duktus mammae, tebal epitel alveoli mammae, diameter lumen duktus mammae, diameter lumen alveoli mammae mencit (Mus musculus). Data yang diperoleh dianalisis dengan ANOVA satu arah, apabila terdapat perbedaan sangat nyata maka dilanjutkan dengan uji duncan. Hasil penelitian …
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Sox2-Dependent Transcriptional Control of Airway Differentiation In The Mouse Lung
… conducting airways and consists of 300 million alveoli for gas exchange. Airway branches form via branching morphogenesis and then mature into conducting airways, in which the number and distribution of different cell types need to be precisely controlled. The conducting airways contain four …
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A Theoretical Exploration of the Growth and Stability of Alveolospheres
… “balloon-like” structure which resembles the alveoli in human lungs. In recent years, they have become increasingly popular as model systems for disease research and treatment development, especially with the onset of COVID-19. Patients born with a rare mutation on both copies of their SFTPB …
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Targeted Delivery of Surface Modified Nanoparticles: Modulation of Inflammation for Acute Lung Injury
… leukocyte migration from blood circulation into alveoli. Currently, there is no FDA approved pharmacological treatment available except the supportive mechanical ventilation therapy. Numerous clinical trials involving pharmacological therapies aimed at different pathological targets turned …
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Adaptive lung growth following exposure to simulated high altitude
… cells, unidentifiable cells) in the central alveoli wall cells lagged behind and was lower than in the peripheral alveoli. After 3 day recovery, lung DNA synthesis reached the control levels. Pulmonary function tests showed that hypobaric hypoxia caused a decrease in expiratory flow rates …
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Collective cellular behavior on curved surface
… including mature respiratory bronchioles, alveoli, and embryonic tissues. There are fundamental reasons to suspect that such curved geometries will alter collective cellular dynamics in a nontrivial manner. In particular, as the radius of curvature decreases, it inevitably affects packing …
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YAP/TAZ REGULATES ALVEOLAR REGENERATION AND RESOLUTION OF LUNG INFLAMMATION
… pneumonia, led to exclusive damage in lung alveoli, followed by alveolar epithelial regeneration and resolution of lung inflammation. We show that surfactant protein C-expressing (SPC-expressing) alveolar epithelial type II cells (AECIIs) underwent proliferation and differentiation after …
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OVERRIPENING OF OVULATED EGGS IN GOLDFISH, CARASSIUS AURATUS L
… aggregation of the cytoplasm with the cortical alveoli (CA) and oil droplets (OD) at the animal pole and the partial breakdown of CA. The overripe eggs appeared more transparent, and also became bigger due to hydration. The chorion became thinner and surface changes were noted, e.g. the …
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Childhood Asthma Deaths in North Carolina: 1999-2012
… can potentially compr omise gas exchange in the alveoli. Over time, remodeling of the airway occurs wi th more chronic inflammation, and irreversible obstructive changes can occur. Once these chang es have taken place, the disease may be less responsive to treatment.
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Does maternal nicotine exposure during gestation and lactation change the oxidant-antioxidant status of the lungs of the offsprings and is tomato juice protecting the lungs of the offsprings?
… combination of many small air sacs in one bigger alveoli which is a sign of emphysema. Many researchers speculated that the way in which, nicotine causes emphysema and other damage, is by inducing the formation of many reactive oxygen species (ROS), and creating an imbalance between the oxidants …
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Quantitative Assessment of Lung Microstructure in Healthy Mice Using an MR-based 3He Lung Morphometry Technique
… theory of 3He gas diffusion in lung airways and alveoli and tested this theory in two distinct experiments. In the first experiment, using a Stejskal-Tanner method, we examine the diffusion of 3He atoms as it occurs in tiny airways of mouse lungs. Through a series of magnetic resonance: MR) …
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The Internal Anatomy and Histology of Adult <em>Antricola mexicanus</em> Hoffman (Acari: Argasidae)
… of nongranular (type I) and granular (type II) alveoli. One cell type was observed in both types of alveoli. Possible osmoregulatory roles are discussed. The midgut consists of a central pouch and seven pair of diverticula. Three cell types were present in the midgut epithelium. The connecting …
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Cell Fate Decisions in the Developing Lung
… are responsible for conducting air towards the alveoli, and an alveolar region where gas exchange takes place (Herriges and Morrisey, 2014). During embryogenesis, the airways are first laid down through an iterative process of branching morphogenesis, which terminates at the alveoli. Throughout …
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Characterization of Dendritic Cells in the Bovine Mammary Gland
… and localize bovine mammary DC. DC were found in alveoli, in epithelia, and in interalveolar tissue. Fluorescence-activated cell sorting (FACS) was used to characterize mammary DC as expressing CD11c, MHC-II, CD205, CD11b, and CD8α. FACS allowed us to distinguish DC (CD14lo) from macrophages …
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Histology of bovine mammary tissue during advanced stages of induced lactation
… (5) duct -.74%. Also, an increase of 15 nuclei/alveoli occurred between days 18 thru 23. On day 18 small lipid droplet epithelia predominated but was replaced with mixed lipid droplet epithelia by day 23. Day 18 epithelia had elongated dark staining nuclei. Epithelia on day 23 had spherically …
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Studies of Polycyclic Aromatic Hydrocarbons in Urban Atmospheres
… of penetrating to human lungs as far as the alveoli. The recoveries of PAH from scot, when exposed to NOx, decrease with time at rates which correlate with molecular properties. Hence even in the absence of photolytic degradation a chemical route exists whereby the atmospheric PAH burden …
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Analisis kadar karboksihemoglobin (COHb) dan dampaknya terhadap kesehatan pekerja bengkel.
… Gas CO masuk ke paru- paru inhalasi, mengalir ke alveoli terus masuk ke aliran darah. Gas CO dengan segera mengikat hemoglobin di tempat yang sama dengan tempat oksigen mengikat hemoglobin, untuk membentuk karboksihemoglobin (COHb), sehingga akan menghalangi masuknya oksigen yang akan dibutuhkan …
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Smoking and High-Fat Diet: Risk Factors Regulating Emphysema Formation
… of hypercholesterolemia on the destruction of alveoli has not been investigated. The work presented in this thesis identifies the role of hypercholesterolemia in the development of emphysema. It also elucidates new molecular mechanisms leading to the proteolytic destruction of lung tissue, …
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The effects of furosemide on equine skeletal muscle satellite cell myogenesis and metabolism in vitro
… (EIPH), in which capillaries rupture within the alveoli in the lungs causing bleeding. Severe cases of EIPH lead to epistaxis and may result in fatality. Presently, the loop diuretic furosemide is the only medication approved to mitigate the effects of EIPH. Often regarded in the racing industry …
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