Mineral binding capacity of dephytinized insoluble fiber from extruded wheat,oat and rice brans   总被引：2，自引：0，他引：2  

Gualberto  D. G.  Bergman  C. J.  Weber  C. W. 《Plant foods for human nutrition (Dordrecht, Netherlands)》1997,51(4):295-310

Insoluble fiber fractions from raw and extruded oat, rice and wheat brans were isolated and phytate removed. In vitro mineral binding studies were performed utilizing copper (Cu²⁺), calcium (Ca²⁺) and zinc (Zn²⁺) ions, which were added individually to enzymatically treated (Prosky et al., 1985), acid washed insoluble fiber residues from oat, rice and wheat brans. The enzymatic digestion step with alpha-amylase, protease and amyloglucosidase served to remove protein and starch from the samples. Mineral binding studies were performed on the insoluble fiber residue. Mineral content was determined by flame atomic absorption spectroscopy. Raw brans served as controls. A twin-screw extruder Model DNDG-62/20D, manufactured by Bühlerag (CH-9240, Uzwil, Switzerland) was utilized. The objectives of the study were to determine the total Cu²⁺, Ca²⁺ and Zn²⁺binding capacity of the dephytinized insoluble fiber from each bran; and to determine if extrusion screw speed affected the brans' insoluble fiber mineral binding capacity. Although dephytinized, the brans' insoluble fiber fraction bound Cu²⁺, Ca²⁺ and Zn²⁺ions. Oat bran bound more Cu²⁺, Ca²⁺ and Zn²⁺ than wheat bran, which bound more than rice bran. Extrusion processing did not affect the brans' insoluble fiber binding capacity to bind Cu²⁺. However, it increased the binding capacity of Ca²⁺ and Zn²⁺ of the insoluble fiber fraction from rice and oat brans.  相似文献   

Clinical remission of idiopathic hypereosinophilic syndrome in a Rottweiler   总被引：1，自引：1，他引：0  

FE James  CS Mansfield 《Australian veterinary journal》2009,87(8):330-333

Idiopathic hypereosinophilic syndrome (HES) is a rare syndrome for which Rottweilers appear to over-represent the canine cases. A 6-month-old female entire Rottweiler presented with seizures following a traumatic incident. The dog was identified as having a marked, sustained eosinophilia and investigations did not identify an underlying cause. Concurrently, the dog had chronic eosinophilic hepatitis with impaired liver function and mesenteric eosinophilic lymphadenitis. The dog went on to have spontaneous resolution of HES and normal liver function was subsequently documented. To date, the dog is still alive, more than 4 years after initial presentation. The diagnosis of idiopathic HES in Rottweilers may not carry a poor prognosis and the condition may spontaneously resolve, even in cases with documented organ damage.  相似文献   

Fish Cardiovascular Physiology and Disease     

Johanna Sherrill  E. Scott Weber  Gary D. Marty  Stephen Hernandez-Divers 《Veterinary Clinics of North America: Exotic Animal Practice》2009,12(1):11-38

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Induced maturation and spawning: opportunities and applications for research on oogenesis     

Craig V. Sullivan  Naoshi Hiramatsu  Alanna M. Kennedy  Robert W. Clark  Gregory M. Weber  Takahiro Matsubara  Akihiko Hara 《Fish physiology and biochemistry》2003,28(1-4):481-486

Broodstock management requires the ability to detect and regulate oocyte growth, acquisition of maturational competence, maturation of oocytes, and onset of ovarian atresia. Our research on temperate basses (genus Morone) has supported development of these capabilities. These investigations have revealed that accumulation of neutral lipid droplets and deposition of vitellogenin-derived yolk proteins in growing oocytes are independent processes with different sensitivities to changing day length and water temperature. In these fishes, completion of oocyte growth is marked by disappearance of vitellogenin from ovarian biopsy samples. Competence of females for induced spawning is predicted by the ability of biopsied follicles to initiate oocyte meiosis in vitro in response to insulin-like growth factor I. Cytoplasmic maturation of the oocytes is triggered by the maturation-inducing steroid hormone and can be monitored by evaluating degradation of the yolk proteins. Onset of ovarian atresia is indicated by the appearance of edema in the granulosa cell layer of biopsied follicles, and can be delayed for months by holding gravid females at abnormally low temperature (`cold banking'). These novel findings hold strong promise for application to other farmed fishes.  相似文献