Evaluation of intrarenal mesenchymal stem cell injection for treatment of chronic kidney disease in cats: a pilot study     

Quimby JM  Webb TL  Gibbons DS  Dow SW 《Journal of Feline Medicine and Surgery》2011,13(6):418-426

The feasibility of autologous intrarenal mesenchymal stem cell (MSC) therapy in cats with chronic kidney disease (CKD) was investigated. Six cats (two healthy, four with CKD) received a single unilateral intrarenal injection of autologous bone marrow-derived or adipose tissue-derived MSC (bmMSC or aMSC) via ultrasound guidance. Minimum database and glomerular filtration rate (GFR) via nuclear scintigraphy were determined pre-injection, at 7 days and at 30 days post-injection. Intrarenal injection did not induce immediate or long-term adverse effects. Two cats with CKD that received aMSC experienced modest improvement in GFR and a mild decrease in serum creatinine concentration. Despite the possible benefits of intrarenal MSC injections for CKD cats, the number of sedations and interventions required to implement this approach would likely preclude widespread clinical application. We concluded that MSC could be transferred safely by ultrasound-guided intrarenal injection in cats, but that alternative sources and routes of MSC therapy should be investigated.  相似文献   

Harmonic radar: efficacy at detecting and recovering insects on agricultural host plants     

Boiteau G  Vincent C  Meloche F  Leskey TC  Colpitts BG 《Pest management science》2011,67(2):213-219

BACKGROUND: In pest management research, harmonic radar systems have been largely used to study insect movement across open or vegetation‐poor areas because the microwave signal is attenuated by the high water content of vegetation. This study evaluated whether the efficacy of this technology is sufficient to track insects in vegetative landscapes. RESULTS: Field efficacy data were collected using portable harmonic microwave radar and electronic dipole tags mounted on adults of three economically important pests: Leptinotarsa decemlineata (Say), Diabrotica virginifera virginifera (LeComte) and Conotrachelus nenuphar Herbst. Detection and recovery of tagged Colorado potato beetles, plum curculios and western corn rootworms was high within and among potato plants, moderate within apple trees and high within, but not between, corn plants respectively. The efficacy of the radar depends on the ability of the operator to move around the host, scanning for a signal ‘sightline’ with the tagged insect among plant structures. CONCLUSION: The detection rate of tagged insects by harmonic radar systems is high enough to track the walking path of pests through low row crops such as potato, tall row crops such as corn or tall but well‐separated trees of orchard‐type crops by adapting the scanning procedure to the vegetative architecture. Copyright © 2010 Crown in the right of Canada. Published by JohnWiley & Sons, Ltd  相似文献   

Effects of Brussels sprout juice on the cell cycle and adhesion of human colorectal carcinoma cells (HT29) in vitro   总被引：2，自引：0，他引：2  

Smith TK  Lund EK  Clarke RG  Bennett RN  Johnson IT 《Journal of agricultural and food chemistry》2005,53(10):3895-3901

Consumption of Brassica vegetables is associated with a reduced risk of cancer of the alimentary tract in animal models and human populations. We used raw juice extracted from Brussels sprouts rich in the glucosinolate sinigrin to explore the effect of naturally occurring glucosinolate breakdown products on cell cycle progression and apoptosis in human colorectal carcinoma cells (HT29). Juice was prepared from sprout tissue immediately before use, and the glucosinolate breakdown products were determined by gas chromatography mass spectrometry and liquid chromatography mass spectrometry. The cell cycle was analyzed by flow cytometry on detached and adherent cells, and apoptosis was measured in the detached population by annexin V staining. Twenty-four hours after challenge with juice (10 microL/mL), 7-13% of adherent cells had detached from the substratum but the majority (82%) of these cells had not entered apoptosis, whereas only 33% of detached control cells were not apoptotic (p < 0.05). The main glucosinolate breakdown products were as follows: the sinigrin breakdown product, 1-cyano-2,3-epithiopropane (ca. 38 mM); the gluconapin hydrolysis product, 3-butenyl isothiocyanate (ca. 2.2.mM); the glucobrassicin metabolite, ascorbigen (ca. 8 mM); and low concentrations of other indole glucosinolate-derived hydrolysis products such as neoascorbigen and 3,3'-diindolylmethane. A variety of biologically active glucosinolate breakdown products are released by mechanical disruption of raw Brussels sprout tissue, but contrary to previous assumptions, allyl isothiocyanate is not the main compound responsible for the inhibition of cell proliferation.  相似文献   

Landscape-level interactions between topoedaphic features and nitrogen limitation in tallgrass prairie   总被引：6，自引：0，他引：6  

Tracy L. Benning  Timothy R. Seastedt 《Landscape Ecology》1995,10(6):337-348

Transects across watersheds with varying fire histories and remotely-sensed data were used to study vegetation-resource interactions in a tallgrass prairie in Kansas. Paired plots (fertilized, control) were established along these transects and sampled for grass and forb biomass during the 1989 and 1990 growing seasons. Fertilization resulted in significant production responses in grass and total biomass on the west slopes of the annually burned (ID) and infrequently burned (N4) watersheds for both years (p = 0.05). In 1989, fertilization also produced a significant increase in grass biomass on the west slope of the unburned transect (p = 0.05), however, total production was not significantly increased. East slopes were insensitive to nitrogen additions. Differences in production response along these transects were assessed by testing the interaction between fertilization response and slope position. Significant interactions occurred on both 1D and N4, but only in 1990.Production data for both years were also compared to Normalized Difference Vegetation Index (NDVI) values derived from thematic mapper (TM) images for 1989 and 1990. When differences among transects or watersheds were statistically different, a positive relationship between NDVI and biomass was observed. NDVI values accurately reflected the spatial patterns of production along these transects for both years although not necessarily the magnitude.  相似文献   

Internal fixation of a greater tubercle fracture in an adolescent horse: A case report     

Ragan Adams MA  DVM  Tracy A. Turner DVM  MS 《Journal of Equine Veterinary Science》1987,7(3)

This report describes the diagnosis of a fracture of the greater tubercle of the humerus and successful repair with 2 cancellous bone screws in a 420 kg adolescent horse.  相似文献   

Scintigraphic, radiographic, and thermographic appearance of the metacarpal and metatarsal regions of adult healthy horses treated with nonfocused extracorporeal shock wave therapy--a pilot study     

Verna M  Turner TA  Anderson KL 《Veterinary therapeutics : research in applied veterinary medicine》2005,6(3):268-276

Nonfocused extracorporeal shock wave therapy (ESWT) treatment protocol is commonly used in veterinary practice. This study investigated the effects of four nonfocused ESWT treatments, given 2 weeks apart, on bone radiopharmaceutical uptake and radiographic and thermographic appearance in the metacarpal and metatarsal regions in six adult untrained horses. There were no measurable treatment effects determined by thermography (daily), scintigraphy (at 2-week intervals), and radiography (before study initiation and at study completion) between treated and control limbs. It was concluded that no gross evidence of bone remodeling is detectable by conventional clinical assessment when nonfocused ESWT is applied to healthy equine metacarpal or metatarsal bone.  相似文献   

Tuberculosis in cattle: the results of the four-area project     

Griffin JM  More SJ  Clegg TA  Collins JD  O'Boyle I  Williams DH  Kelly GE  Costello E  Sleeman DP  O'Shea F  Duggan M  Murphy J  Lavin DP 《Irish veterinary journal》2005,58(11):629-636

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Iridium-192 interstitial brachytherapy as adjunctive treatment for canine cutaneous mast cell tumors     

Northrup NC  Roberts RE  Harrell TW  Allen KL  Howerth EW  Gieger TL 《Journal of the American Animal Hospital Association》2004,40(4):309-315

Eleven dogs with cutaneous mast cell tumors (MCTs) were treated with surgery and iridium-192 ((192)Ir) interstitial brachytherapy. Minimum tumor doses ranged from 47.2 to 63.3 Gy. Treated tumors were classified as grade II (n=7) or III (n=4). Five dogs had recurrences with a median progression-free interval of 1391 days, and six dogs had no recurrence at a median follow-up time of 942 days. Acute adverse effects were well tolerated, and late effects were mild. One dog developed a second tumor of a different cell type in the radiation treatment field.  相似文献   

Intracerebral plasma cell tumor in a cat: a case report and literature review     

Greenberg MJ  Schatzberg SJ  deLahunta A  Stokol T  Summers BA 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2004,18(4):581-585

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Immune responses to a Staphylococcus aureus GapC/B chimera and its potential use as a component of a vaccine for S. aureus mastitis     

Perez-Casal J  Prysliak T  Kerro-Dego O  Potter AA 《Veterinary immunology and immunopathology》2006,109(1-2):85-97

Bovine mastitis caused by strains of S. aureus is the most economically important disease affecting the dairy industry worldwide. Commercially available vaccines show various degrees of success and work in research laboratories with experimental vaccines suggests that in part, the failure of these vaccines lies in the limited antigenic repertoire contained in the vaccine formulations. Since it seems impractical to produce a vaccine containing antigens from all major S. aureus mastitis isolates, we took the approach of using two surface antigens GapB and GapC that appear to be conserved and constructed a GapC/B chimera as the basis for a vaccine. The humoral and cellular immune responses to GapC/B were compared to the responses to the individual proteins, alone or in combination. The GapC/B protein elicited strong humoral and cellular responses in mice as judged by the levels of total IgG, IgG1, IgG2a, and number of IL-4- and IFN-gamma-secreting cells. These results suggest that this chimeric protein could be an attractive target for further vaccine efficacy studies.  相似文献