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Articles 1051 - 1080 of 1100
Full-Text Articles in Entire DC Network
Management Of Common Musculoskeletal Problems: A Survey Of Ontario Primary Care Physicians, Richard H. Glazier, Dawn M. Dalby, Elizabeth M. Badley, Gillian A. Hawker, Mary J. Bell, Rachelle Buchbinder, Sydney C. Lineker
Management Of Common Musculoskeletal Problems: A Survey Of Ontario Primary Care Physicians, Richard H. Glazier, Dawn M. Dalby, Elizabeth M. Badley, Gillian A. Hawker, Mary J. Bell, Rachelle Buchbinder, Sydney C. Lineker
Kinesiology and Physical Education Faculty Publications
BACKGROUND: In Canada, primary care physicians manage most musculoskeletal problems. However, their training in this area is limited, and some aspects of management may be suboptimal. This study was conducted to examine primary care physicians' management of 3 common musculoskeletal problems, ascertain the determinants of management and compare management with that recommended by a current practice panel. METHODS: A stratified computer-generated random sample of 798 Ontario members of the College of Family Physicians of Canada received a self-administered questionnaire by mail. Respondents selected various items in the management of 3 hypothetical patients: a 77-year-old woman with a shoulder problem, a …
Identification Of Speeded And Slowed Familiar Melodies By Younger, Middle-Aged, And Older Musicians And Nonmusicians, Melinda W. Andrews, W. Jay Dowling, James C. Bartlett, Andrea R. Halpern
Identification Of Speeded And Slowed Familiar Melodies By Younger, Middle-Aged, And Older Musicians And Nonmusicians, Melinda W. Andrews, W. Jay Dowling, James C. Bartlett, Andrea R. Halpern
Faculty Journal Articles
There is a range of tempos within which listeners can identify familiar tunes (around 0.8 to 6.0 notes/s). Faster and slower tunes are difficult to identify. The authors assessed fast and slow melody-identification thresholds for 80 listeners ages 17–79 years with expertise varying from musically untrained to professional. On fast-to-slow (FS) trials the tune started at a very fast tempo and slowed until the listener identified it. Slow-to-fast (SF) trials started slow and accelerated. Tunes either retained their natural rhythms or were stylized isochronous versions. Increased expertise led to better performance for both FS and SF thresholds (r = .45). …
The Effects Of Aerobics And Walking On Social Physique Anxiety And Self-Esteem Of Female College Students, Jessica L. Lloyd
The Effects Of Aerobics And Walking On Social Physique Anxiety And Self-Esteem Of Female College Students, Jessica L. Lloyd
College of Graduate Studies: Theses & Dissertations (1964–2006)
The purpose of this investigation was to explore the effectiveness of walking and aerobics as a way of modifying body image apprehension and self-esteem of female college students. Participants from this study comprised 88 (25 African Americans and 63 Caucasians) students from a Southeastern university. The participants were administered the 9-item Social Physique Anxiety Scale (SPAS) (Martin, Rejeski, Leary, McAuley, & Bane, 1997) and the Rosenberg Self-Esteem Scale (RSES) (Rosenberg, 1979). Body composition, body weight, body height, and body mass index (BMI) were also evaluated. The participants performed in a 9-week walking or aerobics physical activity class. At the completion …
1997 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library
1997 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library
Scholars and Artists Bibliographies
This bibliography was created for the annual Friends of the Michael Schwartz Library Scholars and Artists Reception, recognizing scholarly and creative achievements of Cleveland State University faculty, staff and emeriti
Nerve Tissue-Specific Human Glutamate Dehydrogenase That Is Thermolabile And Highly Regulated By Adp / P. Shashidharan, Donald D. Clarke, Naveed Ahmed, Nicholas Moschonas, And Andreas Plaitakis Department Of Neurology, Mount Sinai School Of Medicine, New York; Department Of Chemistry, Fordham University, Bronx New York, Usa; And Department Of Biology And School Of Health Sciences, University Of Crete, Crete, Greece, P. Shashidharan, Donald Dudley Clarke Phd, Naveed Ahmed, Nicholas Moschonas
Nerve Tissue-Specific Human Glutamate Dehydrogenase That Is Thermolabile And Highly Regulated By Adp / P. Shashidharan, Donald D. Clarke, Naveed Ahmed, Nicholas Moschonas, And Andreas Plaitakis Department Of Neurology, Mount Sinai School Of Medicine, New York; Department Of Chemistry, Fordham University, Bronx New York, Usa; And Department Of Biology And School Of Health Sciences, University Of Crete, Crete, Greece, P. Shashidharan, Donald Dudley Clarke Phd, Naveed Ahmed, Nicholas Moschonas
Chemistry Faculty Publications
Glutamate dehydrogenase (GDH), an enzyme that is central to the metabolism of glutamate, is present at high levels in the mammalian brain. Studies on human leukocytes and rat brain suggested the presence of two GDH activities differing in thermal stability and allosteric regulation, but molecular biological investigations led to the cloning of two human GDH-specific genes encoding highly homologous polypeptides. The first gene, designated GLUD1, is expressed in all tissues (housekeeping GDH), whereas the second gene, designated GLUD2, is expressed specifically in neural and testicular tissues. In this study, we obtained both GDH isoenzymes in pure form by expressing a …
Relative Intranuclear Magnesium And Phosphorus Contents In Normal And Tumor Cells Of The Human Thyroid Gland As Revealed By Energy-Dispersive X-Ray Microanalysis, Geza L. Lukacs, Imre Zs.-Nagy, Janos Steiber, Ferenc Gyori, Gyorgy Balazs
Relative Intranuclear Magnesium And Phosphorus Contents In Normal And Tumor Cells Of The Human Thyroid Gland As Revealed By Energy-Dispersive X-Ray Microanalysis, Geza L. Lukacs, Imre Zs.-Nagy, Janos Steiber, Ferenc Gyori, Gyorgy Balazs
Scanning Microscopy
Energy dispersive X-ray microanalysis was performed on altogether 42 surgically removed tissue specimens of 32 patients, which were taken either from intact thyroid parts or various histopathologically verified tumors of the thyroid gland. The tissue specimens were processed with the freeze-fracture-freeze-drying technique and then analyzed in the so-called bulk specimen form. The studies were carried out during the years 1980-81, when intranuclear monovalent ionic composition was studied in detail. From the retained total elemental peak list, it was possible to calculate retrospectively the relative intranuclear Mg and P contents. The data processed by nested (hierarchical) analysis of variance show that …
Vitamin E Deficiency As A Model Of Precocious Brain Aging: Assessment By X-Ray Microanalysis And Morphometry, Carlo Bertoni-Freddari, Patrizia Fattoretti, Ugo Caselli, Roberta Paoloni, William Meier-Ruge
Vitamin E Deficiency As A Model Of Precocious Brain Aging: Assessment By X-Ray Microanalysis And Morphometry, Carlo Bertoni-Freddari, Patrizia Fattoretti, Ugo Caselli, Roberta Paoloni, William Meier-Ruge
Scanning Microscopy
Vitamin E (α-tocopherol) is a known biological antioxidant able to quench the lipid peroxidation chain and to protect the cellular structures (e.g., plasma membranes) from the attack of free radicals which are reported to play a primary role in aging. To assess whether the absence of α-tocopherol from the diet of young laboratory animals may be considered a reliable model of precocious brain aging, intracellular ionic content of brain cortex pyramidal cells, ultrastructural features of synaptic contact zones, synaptic mitochondria and perykarial mitochondria positive to the succlillc dehydrogenase (SDH) histochemical reaction with copper ferrocyanide have been investigated by X-ray microanalysis …
Santa Clara Magazine, Volume 36 Number 3, Summer 1994, Santa Clara University
Santa Clara Magazine, Volume 36 Number 3, Summer 1994, Santa Clara University
Santa Clara Magazine
7 - JAMAICA: THE OTHER SIDE OF PARADISE Religious organizations work to relieve the misery in a nation that, for some, is a vacation wonderland. By Mitch Finley '73 Political and economic analysis by Dennis R. Gordon
12 - I'll SEE YOU IN ADR! More and more people with civil disputes are finding themselves in alternative dispute resolution. But is ADR always the consumer's best choice? By Julie Sly '82
20 - UP CLOSE: MARIO BELOTTI The SCU economics professor of 35 years has become internationally renowned through hard work and (he says) being in the right place at the …
Nutritional Screening Of Utah Rural And Urban Elderly, Rachel Taylor Rood
Nutritional Screening Of Utah Rural And Urban Elderly, Rachel Taylor Rood
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The population of Americans over age 65 is expected to increase from a reported 12 percent in 1988 to 22 percent by the year 2030. Nutrition screening and intervention can help combat the rising need for health care and other services among the elderly by preventing or delaying disability and dependency.
This study was designed to determine the degree of nutritional risk present within the elderly population in rural and urban areas in the state of Utah by conducting an initial nutrition screening using the Determine Your Nutritional Health checklist developed by the Nutrition Screening Initiative. Congregate meal sites were …
G94-1227 Preparation For Retirement: Planning When Still Employed, George P. Rowe
G94-1227 Preparation For Retirement: Planning When Still Employed, George P. Rowe
University of Nebraska-Lincoln Extension: Historical Materials
Retirement preparation includes planning for financial security, health maintenance, a social network, and meaningful activities.
Retirement is defined as partial or complete withdrawal from career work accompanied by a change in the sources and amount of income. Most persons choose to retire today between the ages of 62 and 66 since eligibility for partial Social Security benefits begins at age 62 with full benefits available by age 65. Full benefits will begin later for Americans born after 1959 when they reach age 67 in 2027. For most occupations, there is no mandatory age at which people have to quit working. …
1993 Issues Review
Southeast Research and Extension Center: Reports and Administration
This self-study document was prepared by the faculty and staff of the South Central Research and Extension Center in preparation for the unit review.
The format for this review differs from past reviews in two primary areas. First, the review focuses on issues; thus the emphasis is on looking forward rather than evaluating the past. Second, the review team is largely composed of IANR staff who are familiar with the organization and programming processes. Because of these differences, this document emphasizes the issues and the processes which occurred to arrive at this point. The limited background data is included to …
The Effect Of Age On Recovery Of Heart Rate After Exercise, Shari A. Delisle
The Effect Of Age On Recovery Of Heart Rate After Exercise, Shari A. Delisle
Masters Theses
The purpose of this study was to determine if heart rate recovery, following exercise, of active women aged between 50-63 years was significantly slower than the recovery of active women aged 23-24 years when both groups exercised at the same relative perceived intensity. Ten female subjects, five young and five older, were tested during a five minute bout of treadmill exercise while working at a rating of perceived exertion(RPE) of 14. Heart rate was measured prior to and during testing and into recovery using the Vantage Performance Monitor. The time, measured in seconds, it took for each subject to drop …
Morphological Study Of Gastric Lesions Developing In The Rat Under Several Damaging Conditions: Modifications Induced By Pretreatment With Zinc Acexamate, M. Luisa Bravo, Ginés Escolar, Carmen Navarro, Ramón Fontarnau, Oriol Bulbena
Morphological Study Of Gastric Lesions Developing In The Rat Under Several Damaging Conditions: Modifications Induced By Pretreatment With Zinc Acexamate, M. Luisa Bravo, Ginés Escolar, Carmen Navarro, Ramón Fontarnau, Oriol Bulbena
Scanning Microscopy
Lesions developing in the gastric mucosa of the rat after exposure to different gastric damaging agents (100 mg/kg aspirin, and 70% or 100% ethanol) were assessed by scanning electron microscopy. The severity of the lesions was quantified according to morphological criteria. Modifications in the severity of these lesions induced by pretreatment with zinc acexamate were also analyzed. The scanning electron microscope revealed that with the exception of absolute ethanol, which caused distinctive morphological features, lesions found under the different experimental agents shared a common pattern of progression. Ultrastructural lesions on surface epithelial cells preceded further alterations of parietal cells. After …
Book Review: Genetically Engineered Organisms: Benefits And Risks, Anne K. Vidaver
Book Review: Genetically Engineered Organisms: Benefits And Risks, Anne K. Vidaver
Department of Plant Pathology: Faculty Publications
In the continuing debate on the introduction into the environment of genetically modified organisms, particularly those modified by recombinant DNA, there are few books suitably written for policymakers, the lay public and scientists in other fields. This book describes the current state of the science and art of genetic engineering, potential uses (particularly outside the laboratory), and the benefits that can be expected. It is particularly pertinent for examining potential risk and management of risk from the perspective of the United Kingdom.
Nf92-83 Older People: Where Should They Go For Clothes?, Rose Marie Tondl
Nf92-83 Older People: Where Should They Go For Clothes?, Rose Marie Tondl
University of Nebraska-Lincoln Extension: Historical Materials
This NebFact offers suppliers of clothing, health aids and supplies for older persons.
A Study Of The Human Longevity Potential And Its Manifestation In Longevous Individuals, Corliss White
A Study Of The Human Longevity Potential And Its Manifestation In Longevous Individuals, Corliss White
Theses
This study examines the present state of aging and longevity research as it applies to longevous elderly, those who reach their 10th and 11th decade of life. Their numbers, if not percentages, have risen considerably in the growing elderly population, The difference between the longevous and other elderly persons is not just one of degree, but of kind. Each of them is a living biological prototype of the human potential to live an extended life span without significant loss of vitality.
Many past studies of longevous population have been marred by inaccurate claims based on unreliable data. Beyond that, researchers …
The Hall Method In The Quantitative X-Ray Microanalysis Of Biological Specimens: A Review, Godfried M. Roomans
The Hall Method In The Quantitative X-Ray Microanalysis Of Biological Specimens: A Review, Godfried M. Roomans
Scanning Microscopy
In the two decades since its inception by T.A. Hall, the continuum theory of quantification has become the general method for quantitative analysis of biological specimens. Although the method was originally developed for thin specimens, its use has been extended to thicker specimens, and it has also been used in quantitative determinations of local water content. The single most important difficulty in the application of the "Hall method" is the accurate calculation of the extraneous continuum, i.e., the continuum due to non-specimen sources. The different variations in methods for quantitative analysis of local water content are critically compared and a …
Kidney Structure Investigations Using Scanning Electron Microscopy Of Corrosion Casts - A State Of The Art Review, H. Ditrich, H. Splechtna
Kidney Structure Investigations Using Scanning Electron Microscopy Of Corrosion Casts - A State Of The Art Review, H. Ditrich, H. Splechtna
Scanning Microscopy
The corrosion casting technique using acrylic resins in the scanning electron microscope (SEM), was originally developed to investigate renal microvascular structure and is now also successfully used in studies on various other organs. However, in the last two decades nearly 100 papers have been published on the renal vascular anatomy of various taxa of vertebrates or on pathomorphological structures of kidneys, using this technique. Analyzing these works, trends and developments in this field can be summed up as follows: The majority of studies are anatomical works on the vascular system of kidneys from all vertebrate classes. In addition, experimental pathological …
A Review On The Extension Of Hall’S Method Of Quantification To Bulk Specimen X-Ray Microanalysis, Imre Zs. -Nagy, T. Casoli
A Review On The Extension Of Hall’S Method Of Quantification To Bulk Specimen X-Ray Microanalysis, Imre Zs. -Nagy, T. Casoli
Scanning Microscopy
The theoretical background and the experimental data described in this paper justify the application of the Hall's continuum method of quantitation and the use of bulk crystals of known composition as standards, without ZAF correction, for the biological bulk specimen X-ray microanalysis, provided that proper criteria are respected during the realization of such measurements. The most important points are as follows: (i) Only crystals can be selected where the electrostatic charging is negligible or absent. This depends in part on the own characteristics of the crystals, and can also be facilitated by using low accelerating voltage, e.g. 10 kV, well-conducting …
A Review On The Use Of Bulk Specimen X-Ray Microanalysis In Cancer Research, I. Zs.-Nagy
A Review On The Use Of Bulk Specimen X-Ray Microanalysis In Cancer Research, I. Zs.-Nagy
Scanning Microscopy
The freeze-fracture, freeze-drying ( FFFD) method of biological bulk specimen preparation combined with quantitative X-ray microanalysis is suitable for the measurement of intracellular concentrations of biologically relevant elements in human biopsy or experimental animal materials. Especially useful information can be obtained regarding the intracellular Na+/K+ ratios being independent of the actual (and unknown) water content of the cytoplasm. The sustained increase of this ratio indicates a sustained depolarization of the cell membrane. These data are of importance from the point of view of the membrane hypothesis of mitogenesis (MHM). It has been revealed that the distribution histograms …
Quantitative Morphology Of Synaptic Plasticity In The Aging Brain, Carlo Bertoni-Freddari, William Meier-Ruge, Jurg Ulrich
Quantitative Morphology Of Synaptic Plasticity In The Aging Brain, Carlo Bertoni-Freddari, William Meier-Ruge, Jurg Ulrich
Scanning Microscopy
Quantitation of synaptic ultrastructural changes is of great importance in neurobiology, since merely qualitative alterations, if not extreme, are not readily detectable. In the present paper we discuss our previous and present findings on the number (numerical density: Nv), size (average length of the synaptic profiles: L) and surface contact area (surface density: Sv) of the synaptic junctions in aging rodent and human brains. We found that number and size of the synapses are in a close inverse relationship so as to maintain the total surface contact area among the nerve cells constant. These three parameters are closely related to …
The Bulk Specimen X-Ray Microanalysis Of Freeze-Fractured, Freeze-Dried Tissues In Gerontological Research, I. Zs.-Nagy
The Bulk Specimen X-Ray Microanalysis Of Freeze-Fractured, Freeze-Dried Tissues In Gerontological Research, I. Zs.-Nagy
Scanning Microscopy
The rationale for choosing the freeze-fracture freeze-drying (FFFD) method of biological bulk specimen preparation as well as the theoretical and practical problems of this method are treated. FFFD specimens are suitable for quantitative X-ray microanalysis of biologically relevant elements. Although the spatial resolution of this analytical technique is low, the application of properly selected bulk standard crystals as well as the measurement of the intracellular water and dry mass content by means of another method developed in the same laboratory, allow us to obtain useful information about the age-dependent changes of ionic composition in the main intracellular compartments. The paper …
Age Dependent Dehydration Of Postmitotic Cells As Measured By X-Ray Microanalysis Of Bulk Specimens, György Lustyik, Imre Zs.-Nagy
Age Dependent Dehydration Of Postmitotic Cells As Measured By X-Ray Microanalysis Of Bulk Specimens, György Lustyik, Imre Zs.-Nagy
Scanning Microscopy
In this paper we give a brief outline of our bulk specimen technique developed to measure intracellular water concentration in frozen-hydrated biological specimens by means of energy dispersive X-ray microanalysis. Fractured surface of the deep-frozen tissue samples is analyzed in an electron microscope (a specimen area of 15x11.5 𝝁m is scanned) using 20 kV accelerating voltage and 1-5 pA effective beam current (measured in the specimen). Strong electric charging, which is the main problem associated with the low temperature X-ray microanalysis of frozen-hydrated specimens, is reduced by choosing optimum temperature range for the measurements (170-185 K) and by etching a …
Ultrastructural Analysis Of Enamel Formation During In Vitro Development Using Chemically-Defined Medium, P. Bringas Jr., M. Nakamura, E. Nakamura, J. Evans, H. C. Slavkin
Ultrastructural Analysis Of Enamel Formation During In Vitro Development Using Chemically-Defined Medium, P. Bringas Jr., M. Nakamura, E. Nakamura, J. Evans, H. C. Slavkin
Scanning Microscopy
To test the hypothesis that enamel biomineralization is regulated by sequential expression of an intrinsic genetic program, we designed experiments to determine if a serumless, chemically-defined medium is permissive for position-dependent ameloblast differentiation and subsequent enamel tissue-specific biomineralization in vitro. In the absence of serum or other exogenous growth factors, Swiss Webster strain mouse embryonic (15-and 16-days gestation) mandibular first molar tooth organs (cap stage) developed within 21 days in vitro into well-defined molar tooth organs expressing dentine and enamel biomineralization. Analysis of data obtained from von Kossa histochemistry for calcium salt formation, as well as ultrastructural information obtained …
Tumor Vasculature In Young And Old Hosts: Scanning Electron Microscopy Of Microcorrosion Casts With Microangiography, Light Microscopy And Transmission Electron Microscopy, James G. Walmsley, Scott R. Granter, Miles P. Hacker, Ann L. Moore, William B. Ershler
Tumor Vasculature In Young And Old Hosts: Scanning Electron Microscopy Of Microcorrosion Casts With Microangiography, Light Microscopy And Transmission Electron Microscopy, James G. Walmsley, Scott R. Granter, Miles P. Hacker, Ann L. Moore, William B. Ershler
Scanning Microscopy
Tumor growth in vivo is dependent upon new blood vessel formation. When B16-F10 melanoma cells are implanted subcutaneously in young (3 mo) and old (24 mo) C57BL/6 mice the rate of growth is dependent on the age of the mice. This study involved a wide range of histological and microscopic techniques but was limited primarily to the initial phase of tumor growth. Stereological point counting from light microscopy (LM) of standard histological sections has been used to yield data regarding blood content. Tumor-bearing mice were perfused through the aorta with a fixation solution and were infused with a low-viscosity radiopaque …
Comprehensive Review Supplemental Document 1987, Southeast Research & Extension Center
Comprehensive Review Supplemental Document 1987, Southeast Research & Extension Center
Southeast Research and Extension Center: Reports and Administration
Contents:
Introduction
Extension Specialist survey
Extension Specialist Survey summary
Extension Agent Survey
Extension Agent Survey summary
Department Head Survey
Department Head Survey summary
Citizen Survey
Citizen Survey Summary
Summary Report of Extension Specialists Retreat
Summary Report of Extension Agents Retreat
Summary Report of Focus Group Interviews with Citizens
Summary Report of Department Heads Meeting
Calcification In Aging Canine Aortic Valve, Kookmin M. Kim, S. H. Chang, B. F. Trump, H. Spurgeon
Calcification In Aging Canine Aortic Valve, Kookmin M. Kim, S. H. Chang, B. F. Trump, H. Spurgeon
Scanning Electron Microscopy
Aging changes of aortic valves are thought to underlie the mechanism of calcification, which leads to calcific aortic stenosis in humans. The study of calcification in the aging valvular connective tissue has been hindered by the lack of a suitable animal model. In search of the model, canine aortic valves demonstrated age changes including calcification remarkably similar to those in humans. The mechanism of calcification was studied in the aortic valves of aged Beagles by electron microscopy. Fibroblasts in the canine aortic valves showed the most prominent age changes. The cells accumulated numerous residual bodies and appeared to disintegrate. The …
The Use Of A Line Scan Ratemeter For The X-Ray Microanalytic Evaluation Of Membrane-Bound Histochemical Endproducts, Imre Zs.-Nagy, Valéria Zs.-Nagy
The Use Of A Line Scan Ratemeter For The X-Ray Microanalytic Evaluation Of Membrane-Bound Histochemical Endproducts, Imre Zs.-Nagy, Valéria Zs.-Nagy
Scanning Electron Microscopy
Although X-ray microanalysis represents a useful tool for identifying electron dense histochemical end-products, quantitative microanalytic measurements are seriously hampered in the case of the activities of certain membrane-bound enzymes. For example, the electron histochemical methods revealing K+-dependent pNPPase activity result in a very fine, granular reaction product of lead phosphate. Therefore microanalytic, densitometric or similar evaluations of the reaction, even in semiquantitative terms are not practical by the usual procedures.
This paper describes a method of X-ray microanalysis of thick sections (0.5 μm) processed for K+-pNPPase, where a sufficient amount of lead is present for X-ray …
Fiber Number And Type Composition In Extensor Digitorum Longus, Soleus, And Diaphragm Muscles With Aging In Fisher 344 Rats, Thomas J. Eddinger, Richard L. Moss, Robert G. Cassens
Fiber Number And Type Composition In Extensor Digitorum Longus, Soleus, And Diaphragm Muscles With Aging In Fisher 344 Rats, Thomas J. Eddinger, Richard L. Moss, Robert G. Cassens
Biological Sciences Faculty Research and Publications
Histochemical (M-ATPase) fiber typing was done on extensor digitorum longus, (EDL), soleus (SOL), and diaphragm (DIA) muscles of barrier-reared Fisher 344 rats obtained at four different ages (3, 9, 28, and 30 months) from the colonies of the National Institute of Aging. In the EDL there are no differences in the percent of type I fibers among the four age groups. The percent of type IIa and IIb fibers also showed no difference between the 3 and 30 month age groups. There was no apparent trend for an increase or decrease in the percent of type IIa or IIb fibers …
The Effect Of High Energy (Hze) Particle Radiation (40ar) On Aging Parameters Of Mouse Hippocampus And Retina, D. E. Philpott, W. Sapp, J. Miquel, K. Kato, R. Corbett, J. Stevenson, S. Black, K. A. Lindseth, E. V. Benton
The Effect Of High Energy (Hze) Particle Radiation (40ar) On Aging Parameters Of Mouse Hippocampus And Retina, D. E. Philpott, W. Sapp, J. Miquel, K. Kato, R. Corbett, J. Stevenson, S. Black, K. A. Lindseth, E. V. Benton
Scanning Electron Microscopy
Eight month old C57BL6 mice were exposed (head only) to 0.5 rad or 50 rads of Argon particles at the Lawrence Berkeley Radiation Facility, CA. Neuromotor performance was assessed monthly for six months beginning twelve weeks post-irradiation using a ''string test". The decline in motor performance was dose-related and none of the animals was able to complete the task after four months of testing. Morphological changes were monitored six and twelve months post-irradiation by light and electron microscopy. The synaptic density in the CA-1 area of the hippocampus decreased six and twelve months after irradiation. The decrease after twelve months …