'Normal' serum chemistry values in wild animals     

Tryland M 《The Veterinary record》2006,158(6):211-212

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Clovis age Western Stemmed projectile points and human coprolites at the Paisley Caves     

DL Jenkins  LG Davis  TW Stafford  PF Campos  B Hockett  GT Jones  LS Cummings  C Yost  TJ Connolly  RM Yohe  SC Gibbons  M Raghavan  M Rasmussen  JL Paijmans  M Hofreiter  BM Kemp  JL Barta  C Monroe  MT Gilbert  E Willerslev 《Science (New York, N.Y.)》2012,337(6091):223-228

The Paisley Caves in Oregon record the oldest directly dated human remains (DNA) in the Western Hemisphere. More than 100 high-precision radiocarbon dates show that deposits containing artifacts and coprolites ranging in age from 12,450 to 2295 (14)C years ago are well stratified. Western Stemmed projectile points were recovered in deposits dated to 11,070 to 11,340 (14)C years ago, a time contemporaneous with or preceding the Clovis technology. There is no evidence of diagnostic Clovis technology at the site. These two distinct technologies were parallel developments, not the product of a unilinear technological evolution. "Blind testing" analysis of coprolites by an independent laboratory confirms the presence of human DNA in specimens of pre-Clovis age. The colonization of the Americas involved multiple technologically divergent, and possibly genetically divergent, founding groups.  相似文献   

Alphaherpesvirus infections in semidomesticated reindeer: A cross-sectional serological study     

Carlos G. das Neves  Julien Thiry  Eystein Skjerve  Nigel G. Yoccoz  Espen Rimstad  Etienne Thiry  Morten Tryland 《Veterinary microbiology》2009,139(3-4):262-269

Alphaherpesviruses infect a wide range of animal species and cause diseases. Cervid herpesvirus 2 (CvHV-2) was originally isolated from reindeer in Finland but the impact of CvHV-2 infections on reindeer remains unclear. CvHV-2 infection could be partly responsible for calf losses as there are indications that it is associated with abortions and neonatal diseases. Previous serosurveys of reindeer (Rangifer tarandus tarandus) have shown that an alphaherpesvirus is circulating among reindeer in Norway. The aim of the present study was to determine the prevalence of CvHV-2 infection among reindeer in various herding districts in Finnmark, the largest reindeer area in Norway, and to identify factors associated with becoming infected with CvHV-2. A total of 3062 serum samples were tested using an ELISA and a sub-set of samples was further tested using a seroneutralization test. The ELISA revealed that 49% of samples were positive. Extrapolation of the results to the total population (111,350 animals; 66% of the Finnmark reindeer population) showed that the seroprevalence in the population was 48%. Seroprevalence varied from 7.6% to 90.7% between districts and was affected by age, weight and population density. ELISA-positive samples neutralized CvHV-2 at serum dilutions greater than those required for neutralization of bovine herpesvirus type 1. It is concluded that CvHV-2 is endemic throughout the reindeer herding districts of northern Norway.  相似文献   

Screening for plant transporter function by expressing a normalized Arabidopsis full-length cDNA library in Xenopus oocytes     

Hussam H Nour-Eldin  Morten HH Nørholm  Barbara A Halkier 《Plant methods》2006,2(1):17-9

Background  

We have developed a functional genomics approach based on expression cloning in Xenopus oocytes to identify plant transporter function. We utilized the full-length cDNA databases to generate a normalized library consisting of 239 full-length Arabidopsis thaliana transporter cDNAs. The genes were arranged into a 96-well format and optimized for expression in Xenopus oocytes by cloning each coding sequence into a Xenopus expression vector.  相似文献   

A severe outbreak of contagious ecthyma (orf) in a free-ranging musk ox (Ovibos moschatus) population in Norway   总被引：1，自引：0，他引：1  

Vikøren T  Lillehaug A  Akerstedt J  Bretten T  Haugum M  Tryland M 《Veterinary microbiology》2008,127(1-2):10-20

During July-October 2004, 19 (18 calves, 1 yearling) free-ranging musk oxen (Ovibos moschatus) at Dovre, Norway, were observed with contagious echtyma-like lesions, and 16 of them were euthanized. Six musk oxen were subjected to necropsy, histopathological and microbiological examinations. All euthanized animals had lesions consistent with contagious ecthyma presenting as wart-like, scabby lesions on the muzzle, lips, oral mucosa and limbs to a variable extent. The histopathological examination showed pustular dermatitis characterized by epidermal proliferation, reticular degeneration, degenerating keratinocytes with intracytoplasmic eosinophilic inclusion bodies, vesicopustules, microabscesses and multifocal ulcerations in the epidermis which was covered by a serocellular crust. Pathology and bacteriology showed evidence of secondary infections in the skin and draining lymph nodes. Electron microscopy (negative staining) of lesions from four animals detected parapoxvirus with the typical arrangement of the outer protein filaments. Parapoxvirus DNA was detected in tissue samples from two examined animals by polymerase chain reaction (PCR) with primers from the B2L-gene. A DNA sequence of 326 nucleotides from the amplicon was compared with similar DNA sequences from parapoxvirus isolated from sheep, reindeer, musk ox and cattle. The outbreak was caused by a virus similar to other circulating orf virus variants in Norway. Antibodies against parapoxvirus were detected with a virus neutralization test in 3 of 35 musk oxen (8.6%) sampled at Dovre between 2004 and 2006. This is the first report of a severe outbreak of contagious ecthyma in free-ranging musk oxen.  相似文献   

JAFPT: A Journal Targeting Fish Technologists     

Morten Sivertsvik 《Journal Of Aquatic Food Product Technology》2017,26(8)

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Brucella pinnipedialis hooded seal (Cystophora cristata) strain in the mouse model with concurrent exposure to PCB 153     

Ingebjørg H. Nymo  Carlos G. das Neves  Morten Tryland  Bård-Jørgen Bårdsen  Renato Lima Santos  Andreia Pereira Turchetti  Andrew M. Janczak  Berit Djønne  Elisabeth Lie  Vidar Berg  Jacques Godfroid 《Comparative immunology, microbiology and infectious diseases》2014

Brucellosis, a worldwide zoonosis, is linked to reproductive problems in primary hosts. A high proportion of Brucella-positive hooded seals (Cystophora cristata) have been detected in the declined Northeast Atlantic stock. High concentrations of polychlorinated biphenyls (PCBs) have also been discovered in top predators in the Arctic, including the hooded seal, PCB 153 being most abundant. The aim of this study was to assess the pathogenicity of Brucella pinnipedialis hooded seal strain in the mouse model and to evaluate the outcome of Brucella spp. infection after exposure of mice to PCB 153. BALB/c mice were infected with B. pinnipedialis hooded seal strain or Brucella suis 1330, and half from each group was exposed to PCB 153 through the diet. B. pinnipedialis showed a reduced pathogenicity in the mouse model as compared to B. suis 1330. Exposure to PCB 153 affected neither the immunological parameters, nor the outcome of the infection. Altogether this indicates that it is unlikely that B. pinnipedialis contribute to the decline of hooded seals in the Northeast Atlantic.  相似文献   

ENDOCRINOLOGICAL ASPECTS OF AVIDIN FORMATION IN THE AVIAN OVIDUCT     

Hertz R  Fraps RM  Sebrell WH 《Science (New York, N.Y.)》1944,100(2585):35-36

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Interference With Estrogen-induced Tissue Growth in the Chick Genital Tract by a Folic Acid Antagonist     

Hertz R 《Science (New York, N.Y.)》1948,107(2777):300

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IMPAIRMENT OF RESPONSE TO STILBESTROL IN THE OVIDUCT OF CHICKS DEFICIENT IN L. CASEI FACTOR ("FOLIC ACID")     

Hertz R  Sebrell WH 《Science (New York, N.Y.)》1944,100(2596):293-294

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