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Lack Of Effect Of Leptin On Glucose Transport, Lipoprotein Lipase, And Insulin Action In Adipose And Muscle Cells, Subramanian Ranganathan, Theodore P. Ciaraldi, Robert R. Henry, Sunder Mudaliar, Philip A. Kern

Clinical and Translational Science Faculty Publications

The effect of leptin on glucose transport, lipogenesis, and lipoprotein lipase activity was studied in cultured rat adipocytes and 3T3-L1 adipocytes. Leptin had no effect on basal and insulin stimulated glucose transport in isolated adipocytes from the rat and the genetically obese mouse. The incorporation of glucose into lipids was also unaffected. Lipoprotein lipase (LPL) activity remained unchanged in response to leptin in these cells, as well as in minced adipose tissue. Leptin also had no effect on both basal and insulin-stimulated glucose transport in cultured rat and human skeletal muscle cells. These studies showed that leptin had no effect …

Effects Of Tumor Necrosis Factor-Α On Glucose Metabolism In Cultured Human Muscle Cells From Nondiabetic And Type 2 Diabetic Subjects, Theodore P. Ciaraldi, Leslie Carter, Sunder Mudaliar, Philip A. Kern, Robert R. Henry

Clinical and Translational Science Faculty Publications

The effects of tumor necrosis factor-a (TNFα) on glucose uptake and glycogen synthase (GS) activity were studied in human skeletal muscle cell cultures from nondiabetic and type 2 diabetic subjects. In nondiabetic muscle cells, acute (90-Min) exposure to TNFα (5 ng/ml) stimulated glucose uptake (73 ± 14% increase) to a greater extent than insulin (37 ± 4%; P < 0.02). The acute uptake response to TNFα in diabetic cells (51 ± 6% increase) was also greater than that to insulin (31 ± 3%; P < 0.05). Prolonged (24-h) exposure of nondiabetic muscle cells to TNFα resulted in a further stimulation of uptake (152 ± 31%; P < 0.05), whereas the increase in cells from type 2 diabetics was not significant compared with that in cells receiving acute treatment. After TNFα treatment, the level of glucose transporter-1 protein was elevated in nondiabetic (4.6-fold increase) and type 2 (1.7-fold) cells. Acute TNFα treatment had no effect on the fractional velocity of GS in either nondiabetic or type 2 cells. Prolonged exposure reduced the GS fractional velocity in both nondiabetic and diabetic cells. In summary, both acute and prolonged treatment with TNFα up-regulate glucose uptake activity in cultured human muscle cells, but reduce GS activity. Increased skeletal muscle glucose uptake in conditions of TNFα excess may serve as a compensatory mechanism in the insulin resistance of type 2 diabetes.

“Foot-Hunting” Behavior By A Great Horned Owl, Michael A. Mcmillian

Florida Field Naturalist

No abstract provided.

The Proportion Of Snail Kites Attempting To Breed And The Number Of Breeding Attempts Per Year In Florida, Robert E. Bennetts, Katie Golden, Victoria J. Dreitz, Wiley M. Kitchens

Florida Field Naturalist

No abstract provided.

Desert Tortoise Gopherus Agassizii

United States Fish and Wildlife Service: Publications

Desert tortoises, also known as desert turtles or gopher tortoises, currently are found in Arizona, California, Nevada, and Utah, as well as parts of Mexico, and in the Mojave, Colorado, Sonoran and Sinaloan deserts.  As the result of various human activities over the past 150 years, tortoises have been eliminated or reduced in large portions of their range in California and in areas near Las Vegas and St. George, Utah.

Desert tortoise population densities range from just a few per square mile to more than 200 per square mile.  Although the number of desert tortoises in the world is unknown, …

Exemplary Inclusion Lessons, Ronald G. Helms Ph.D., Colleen A. Finegan Ph.D.

Electronic Journal for Inclusive Education

The Great Ocean Rescue is an outstanding computer application for students of many ages and abilities. The authors have used The Great Ocean Rescue for several years with students from grades 2 through college. The Great Ocean Rescue is an outstanding software application for teaching about a variety of environmental and social issues.

In addition to the software options, the kit offers a teacher's guide and 28 student map resource booklets(seven sets of four), lesson plans, activities, and blackline masters. The CD-ROM version includes one set of students references. All versions contain a library of over 85 short movies and …

Nesting Habitat Of Florida Grasshopper Sparrows At Avon Park Air Force Range, Michael F. Delany, Stephen B. Linda

Florida Field Naturalist

No abstract provided.

Cowbird Parasitism And Nest Success Of The Lazuli Bunting In The Sacramento Valley, Thomas Gardali, Anne M. King, Geoffrey R. Geupel

Western Birds

No abstract provided.

Six Years Of Synchronous California Gnatcatcher Population Fluctuations At Two Locations In Coastal Orange County, California, Richard A. Erickson, Karen L. Miner

Western Birds

No abstract provided.

Energetic Constraints To The Distribution And Abundance Of The California Gnatcatcher, Patrick J. Mock

Western Birds

No abstract provided.

Two Capture Methods For Black-Billed Magpies, Erik D. Doerr, Veronica A. J. Doerr, Peter B. Stacey

Western Birds

No abstract provided.

Dispersal Capability Of The California Gnatcatcher:, Eric A. Bailey, Patrick J. Mock

Western Birds

No abstract provided.

Coastal Sage Scrub Variations Of San Diego County And Their Influence On The Distribution Of The California Gnatcatcher, Kenneth L. Weaver

Western Birds

No abstract provided.

Factors Affecting Estimates Of California Gnatcatcher Territory Size, Jonathan L. Atwood, Sophia H. Tsai, Carol A. Reynolds, James C. Luttrell, Michael R. Fugagli

Western Birds

No abstract provided.

Is The California Gnatcatcher A Good Umbrella Species?, Scott A. Fleury, Patrick J. Mock, John F. O'Leary

Western Birds

No abstract provided.

Significance Of The Kccl Cytoplasmic Cooh-Terminal Fragment For The Ph Dependence Of K-Cl Cotransport In Transfected Human Embryonic Kidney Cells, Norma C. Adragna, Jin Zhang, Peter K. Lauf

Pharmacology and Toxicology Faculty Publications

No abstract provided.

Predator Urines As Chemical Barriers To White-Tailed Deer, Jerrold L. Belant, Thomas W. Seamans, Laura A. Tyson

Vertebrate Pest Conference Proceedings: 18th (1998)

The authors assessed whether bobcat (Lynx rufus) or coyote (Canis latrans) urine could reduce white-tailed deer (Odocoileus virginianus) use of established feeding areas or trails. A four-week experiment evaluating deer use of eight feeding stations, four each with coyote or bobcat urine was conducted at a 2,200 ha fenced facility in northern Ohio with high deer densities (38/km²). At this same facility, the authors also monitored deer use of four trails where coyote urine was applied. For both experiments, urine was placed in holders positioned at ground level within 2 m of …

Director's Update, University School

University School Directors Update

No abstract provided.

Town Of New Boston, New Hampshire Annual Report For The Fiscal Year Ending December 31, 1997, Report Of The School District For The Year Ending June 30, 1997., New Boston Town Representatives

New Boston, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Iowa Academy Of Science Membership Directory, 1998-99, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Editorial Board, Journal ... 5
Committees ... 6
Sections ... 18
ISTS Regional Directors ... 22
Awards of Merit ... 24
Excellence in Science Teaching Awards ... 25
Past Presidents ... 26
Membership Roster ... 27
Corporate Sponsors ... 35

Decline Of Iowa Populations Of The Regal Fritillary (Speyeria Idalia) Drury, Diane M. Debinskl, Liesl Kelly

Journal of the Iowa Academy of Science: JIAS

The Regal Fritillary butterfly, Speyeria idalia Drury (Lepidoptera: Nymphalidae, Argynninae), is a prairie endemic species which has exhibited a dramatic decline in Iowa during the last few decades. Tallgrass prairie is the primary habitat of S. idalia and the butterfly's presence is correlated with the presence of violets (Violaceae). Due to the extensive habitat fragmentation of Iowa prairies, both the butterfly and its host plant populations are limited primarily to unplowed, relatively pristine prairies. Thus, S. idalia is an excellent case study of a prairie endemic species. Here, we report on the results of a two-year survey of the insect …

Book Review - The Iowa Breeding Bird Atlas, Louis B. Best

Journal of the Iowa Academy of Science: JIAS

The Iowa Breeding Bird Atlas is the first comprehensive statewide survey of Iowa's breeding birds. Through the efforts of over 500 people, every county in the state was sampled to provide a record of the composition and distribution of the bird life in Iowa. The project entailed dividing the state into 861 atlas blocks; 83% received at least some coverage and 71 % were completed. Information known through 1995 is included in the text, although the atlas project ended in 1990.

The Fungi, Lichens, And Myxomycetes Of Iowa: A Literature Review And Evaluation, Lois H. Tiffany, George Knaphus

Journal of the Iowa Academy of Science: JIAS

The fungi have been, and continue to be, a poorly documented portion of Iowa’s biological inheritance. Although many are perennially present in soil and plant debris and are crucially involved in the release and recycling of materials from organic residues or are partners with plant roots as mycorrhizae, they are not obvious until they produce fruiting structures such as mushrooms, boletes, brackets, puffballs, etc. The fungi causing plant disease are more obvious because of the reactions of their host plants; thus the earliest records of Iowa fungi are of ones causing plant diseases commonly referred to as mildews, rusts, and …

Status Of Aquatic Vascular Plants 1n Iowa's Natural Lakes, G. S. Phillips

Journal of the Iowa Academy of Science: JIAS

Conversion of wetlands to agricultural land during the settlement of Iowa has resulted in a significant decline in the total area of lake habitat in the state. This reduction in area, combined with the degradation of remaining sites, resulted in dramatic reductions in aquatic vascular plant populations associated with Iowa's natural lakes. While declines in plant species inhabiting fen, bog, seepage, prairie pothole, and marsh type wetlands have been extensively documented, few quantitative data exist for lake type wetlands. During the summer of 1996, a total of 86 natural lakes in Iowa were surveyed for aquatic vascular plants. Many of …

Iowa's Changing Forest Resources, Steven E. Jungst, Donald R. Farrar, Michael Brandrup

Journal of the Iowa Academy of Science: JIAS

After a period of decline in area extending from the 1850s to 1974, Iowa's forest area increased between 1974 and 1990. Although the area increase is encouraging, it may be fleeting. In addition, changes in forest stand structure and forest ownership patterns along with other pressures may make it difficult to maintain healthy forest ecosystems in the future. Notes from the original land survey in Iowa coupled with information from U.S. Forest Service forest inventories make it possible to look at changes in forest area and forest tree types. Unfortunately, similar long-term data do not exist to make possible a …

The Status Of Iowa's Lepidoptera, Dennis W. Schlicht, Timothy T. Orwig

Journal of the Iowa Academy of Science: JIAS

Including strays, 122 species of butterflies have been confirmed in Iowa. However, since European settlement the populations of taxa of Iowa Lepidoptera have declined. While certain generalist species have experienced declines, species with life cycles that include native habitats, especially prairies and wetlands, have been particularly vulnerable. In a 1994 revision of the Iowa endangered and threatened species list, the Natural Resource Commission (NRC) listed two species of butterflies as endangered, five as threatened, and 25 as special concern, using general legal definitions of those rankings (NRC 1994). But after examining recent records, we have revised that list, using numbers …

The Plausibility Of Legally Protecting Reasonable Expectations, Bailey Kuklin

Faculty Scholarship

No abstract provided.

Outbreak Of Salmonella Enteritidis Gastroenteritidis: Investigation By Pulsed Field Gel Electrophoresis, Kwai Lin Thong, S.D. Puthucheary, T. Pang

Pre-2000

Pulsed-field gel electrophoresis (PFGE) was used to investigate an outbreak of gastroenteritis caused by Salmonella enteritidis. The outbreak occurred among university undergraduates who consumed contaminated food. Molecular typing was done by analyzing DNA band patterns of isolates of S. enteritidis after digestion of chromosomal DNA with infrequently-cutting restriction endonucleases Xbal,Avrll, and Spel and separation of DNA fragments using PFGE. Twentv-nine outbreak isolates of S. enteritidis had identical or highly similar PFGE patterns, whereas different PFGE patterns were observed among three epidemiologically-unrelated isolates obtained durinq the same period. The data obtained confirm the value of PFGE in epidemiologic investigations of outbreaks …

The Radiopacity Of Dental Prostheses (Fixed And Removable) On Plain Radiographs-An Experimental Study, N.H. Abu Kasim, B.I.I. Abdullah, I. Mahadevan

Pre-2000

The impaction of dental prostheses in either the airway or esophagus is an under-recognized problem which may result in severe morbidity or even mortality. The radio-opacity and the size of fixed and removable dental prostheses in an animal carcass was investigated. Prostheses were placed one at a time in the oro-laryngopharynx or in tho trachea and the esophagus. Lateral radiographs were taken for each prosthesis in site. The radio-opacity and size of the prostheses on the radiograph was graded. Most of the prostheses investigated were radio-opaque though the removable prostheses were more likely to be radiolucent and differ in size. …

In Harm's Way: Research Subjects Who Are Decisionally Impaired, Clarence J. Sundram

Journal of Health Care Law and Policy

No abstract provided.