Dietary treatment of progressive feline struvite crystalluria     

D. Gevaert  B. De  Smet R. O. De  Wilde 《The Journal of small animal practice》1994,35(11):575-580

Eight cats were fed a dry commercial cat food and after six months developed urinary struvite crystalluria with alkaline urine. The animals were subsequently divided into two groups and fed either a dry or a canned struvite calculolytic diet. The crystalluria was reduced after five to six weeks with both treatment diets. Decreased crystalluria coincided with a reduction in urinary pH and an increased titratable acidity. The highest food acid load, determined by the lowest undetermined anion, was found with the dry diet and resulted in the highest renal hydrogen excretion, measured as net acid excretion.  相似文献   

East Coast fever: experiments with the tissues of infected ticks   总被引：1，自引：0，他引：1  

J K Wilde  C G Brown  L Hulliger  D Gall  W G MacLeod 《The British veterinary journal》1968,124(5):196-208

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Responses to air flow and airborne plant odour in the Colorado beetle     

J. De Wilde  K. Hille Ris Lambers-Suverkropp  A. Van Tol 《European journal of plant pathology / European Foundation for Plant Pathology》1969,75(1-2):53-57

Colorado beetles moved upwind in a wind tunnel. Odour from leaves of potato, nightshade, tomato and bittersweet enhanced the response. The response disappeared after four antennal segments had been amputated. The odour from meadow grass and dandelion repelled the beetles. Beetles 2–3 weeks emerged but not newly emerged beetles were slightly attracted by celerey. In the same wind tunnel, the scent of female beetles attracted males.Samenvatting In een windtunnel werden proeven gedaan over de reactie van Coloradokevers op de geur van diverse planten. In controleproeven werd een positief anemotactische reactie bij de kevers waargenomen, die werd versterkt door de geur van bladeren van aardappel, nachtschade, tomaat en bitterzoet. In beide gevallen verdween de anemotactische reactie na amputatie van 4 leden van de antennae. Gras en paardebloem beïnvloedden het anemotactisch effect in negatieve zin. Selderij bleek enigszins aantrekkelijk te zijn voor kevers van 2–3 weken oud. Met behulp van hetzelfde apparaat werd aangetoond dat de wijfjes een voor de mannetjes aantrekkelijke geur produceren.  相似文献   

Comment on "Heterogeneous Hadean hafnium: evidence of continental crust at 4.4 to 4.5 Ga"     

Valley JW  Cavosie AJ  Fu B  Peck WH  Wilde SA 《Science (New York, N.Y.)》2006,312(5777):1139; author reply 1139

Harrison et al. (Reports, 23 December 2005, p. 1947) proposed that plate tectonics and granites existed 4.5 billion years ago (Ga), within 70 million years of Earth's formation, based on geochemistry of >4.0 Ga detrital zircons from Australia. We highlight the large uncertainties of this claim and make the more moderate proposal that some crust formed by 4.4 Ga and oceans formed by 4.2 Ga.  相似文献   

The effect of a commercial high-fibre diet and an iso-malto-oligosaccharide-supplemented diet on post-prandial glucose concentrations in dogs   总被引：1，自引：0，他引：1  

M. Hesta  J. Debraekeleer  G. P. J. Janssens  & R. De Wilde 《Journal of animal physiology and animal nutrition》2001,85(7-8):217-221

In order to evaluate the effect of insoluble and soluble fibre on the levels of post-prandial glycaemia, six healthy dogs were fed three different diets: a low-fibre control diet, a high-fibre diet (HF; mainly insoluble fibre) and the control diet with 10% iso-malto-oligosaccharides (IMO) added. The diets were fed for 2 days before the blood collections were started on the third day. Serial blood samples were taken 20, 60, 90, 150, 180, 240 and 360 min after feeding and one sample was taken just before the feeding after a fasting period of at least 20 h. There were no problems concerning the faecal consistency. The post-prandial glycaemia curve was significantly lower in the HF and IMO group in comparison with the control group. At 20 and 60 min the glucose concentration was significantly lower in the HF and IMO groups. At 90 and 150 min only the IMO group had a significantly lower glucose concentration. At 360 min there was a trend for a lower glucose concentration in the IMO group. The results show that both the HF and the IMO diets had a beneficial effect on post-prandial hyperglycaemia. Substitution of IMO may have the same or a slightly better effect, but this has to be confirmed in diabetic dogs and the effect may depend on the composition of the basal diet.  相似文献   

Host plant resistance in some wild wheats to the Russian wheat aphid, Diuraphis noxia (Mordvilko) (Homoptera: Aphididae)     

G. S. Deol    G. E. Wilde  B. S. Gill 《Plant Breeding》1995,114(6):545-546

A total of 259 accessions of wild Triticum species originating from different countries, along with 91 triticale (6×)× bread wheat true-breeding derivatives, two bread wheat, and three triticale cultivars were screened for resistance to the Russian wheat aphid, a serious insect pest of the wheat crop. Twenty-four entries with low damage ratings on the basis of amount of leaf rolling and leaf chlorosis were retested along with resistant and susceptible controls. On the basis of leaf roll damage ratings, eight entries including four Triticum monococcum var. boeoticum (T. boeoticum), one T. monococcum var. monococcum (T. monococcum), two T. timopheevii var. araraticum (T. araraticum), and one triticale cultivar were significantly superior to ‘Karl’ (susceptible control) wheat. Among these, four accessions — three T. boeoticum and one T. araraticum— were significantly superior to all other entries and were equal to the resistant control (PI 372129) in resistance rating based on leaf rolling and leaf chlorosis (except T. boeoticum TA 202). The leaf chlorosis damage rating of all accessions were significantly lower than that of the susceptible check.  相似文献   

Role of beer lipid-binding proteins in preventing lipid destabilization of foam     

Cooper DJ  Husband FA  Mills EN  Wilde PJ 《Journal of agricultural and food chemistry》2002,50(26):7645-7650

The negative effect of fatty acids on the foam stability of beer has been assessed. Long-chain fatty acids are far more damaging than short-chain fatty acids on the foam stability of beer at the concentrations employed. Polypeptides have been isolated from an all malt beer by hydrophobic interaction chromatography. Using this technique five groups of polypeptides were isolated, group 1 being the least hydrophobic and group 5 the most hydrophobic, all of which exhibited similar polypeptide compositions by SDS-PAGE. All five hydrophobic polypeptide groups bound [(14)C]linoleic acid; however, group 5, the most hydrophobic group, bound the most linoleic acid. Groups 1 and 5 were titrated with cis-parinaric acid (CPA) to produce binding curves, which were compared with a binding curve obtained for bovine serum albumin (BSA). Groups 1 and 5 both produced binding curves that saturated at approximately 5.5 microM and 4 microM CPA and had association constants (K(a)) of 6.27 x 10(7) and 1.62 x 10(7) M(-1), respectively. In comparison, BSA produced a binding curve that saturated at 6 microM CPA and had a K(a) of 3.95 x 10(7) M(-1). Further investigation has shown that group 1 is pH sensitive and group 5 pH insensitive with respect to lipid binding. The lipid-binding activity of group 5 was also shown to be unaffected by ethanol concentration. Linoleic acid (5 microM) when added to beer resulted in unstable foam. Group 5 was added to the lipid-damaged beer and was shown to restore the foam stability to values that were obtained for the control beer. It has therefore been demonstrated that proteins isolated from beer have a lipid-binding capacity and that they can convey a degree of protection against lipid-induced foam destabilization.  相似文献   

Effect of processing on the displacement of whey proteins: applying the orogenic model to a real system     

Woodward NC  Wilde PJ  Mackie AR  Gunning AP  Gunning PA  Morris VJ 《Journal of agricultural and food chemistry》2004,52(5):1287-1292

Atomic force microscopy (AFM) has been used to investigate the displacement of a commercial whey protein system and the behavior as compared to that of beta-lactoglobulin (Mackie, A. R.; Gunning, A. P.; Wilde, P. J.; Morris, V. J. Orogenic displacement of protein from the air-water interface by competitive adsorption. J. Colloid Interface Sci. 1999, 210, 157-166). The whey protein isolate (WPI) was displaced from an air-water interface by the surfactants Tween 20 and Tween 60. Displacement data obtained were compared with data obtained for pure beta-lactoglobulin and have shown that WPI was more resistant to displacement from the air-water interface than native beta-lactoglobulin. This was related to the greater surface elasticity of WPI at higher surface stresses. In the presence of Tween 20, WPI was observed to remain on the interface at surface pressures up to 8 mN/m greater than the surface pressure at which complete displacement of beta-lactoglobulin was observed. Displacement of WPI and beta-lactoglobulin films by the surfactant Tween 60 showed similar results. However, because of the lower surface activity of Tween 60, it was not possible to reach surface tension values similar to those obtained for Tween 20. Despite the lower surface activity of Tween 60, WPI was still observed to be present at the interface at surface pressure values greater than those by which beta-lactoglobulin had been completely displaced.  相似文献   

Associations between sperm abnormalities, breed, age, and scrotal circumference in beef bulls     

Menon AG  Barkema HW  Wilde R  Kastelic JP  Thundathil JC 《Canadian journal of veterinary research》2011,75(4):241-247

The objectives of this study were to determine the associations of breed, age, and scrotal circumference (SC), and their interaction, on the prevalence of sperm abnormalities in beef bulls in Alberta, Canada, and the percentage of satisfactory potential breeders identified during breeding soundness examination solely due to normal sperm morphology. Eosin-nigrosin stained semen smears and evaluation reports of 1642 bull breeding soundness evaluations were procured from 6 veterinary clinics in Alberta. Sperm morphology was determined for at least 100 sperm per bull. The most common defects were detached head [4.86% ± 5.71%; mean ± standard deviation (s)], distal midpiece reflex (6.19% ± 9.13%), and bent tail (1.01% ± 1.54%). Although breed, age, and SC did not significantly affect the prevalence of head or midpiece defects, morphologically normal or abnormal sperm, tail defects were more prevalent in Angus and Hereford bulls compared with other breeds. Overall, solely on the basis of sperm morphology, 1363 (83.0%) bulls were classified as satisfactory potential breeders and the remainder 279 (17.0%) as unsatisfactory (> 30% abnormal sperm, > 20% defective heads, or both). Although not significantly different, the breed with the highest percentage of satisfactory potential breeders was Limousin (90.6%) and the lowest was Hereford (78.8%). That 17% of bulls subjected to breeding soundness evaluation were designated as unsatisfactory solely on the basis of sperm morphology highlights its importance.  相似文献   

DAXX/ATRX, MEN1, and mTOR pathway genes are frequently altered in pancreatic neuroendocrine tumors     

Jiao Y  Shi C  Edil BH  de Wilde RF  Klimstra DS  Maitra A  Schulick RD  Tang LH  Wolfgang CL  Choti MA  Velculescu VE  Diaz LA  Vogelstein B  Kinzler KW  Hruban RH  Papadopoulos N 《Science (New York, N.Y.)》2011,331(6021):1199-1203

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