Allergic encephalomyelitis: new form featuring polymorphonuclear leukocytes   总被引：2，自引：0，他引：2  

S Levine  R Sowinski 《Science (New York, N.Y.)》1971,171(970):498-499

The passive transfer of allergic encephalomyelitis can be produced in a single day. In work described, the procedure was made to coincide with a transient drug-induced deficiency of lymphocytes. As a result, the lesions of this autoimmune disease contained a predominance of polymorphonuclear leukocytes instead of the usual mononuclear cells. Not only is this a new histologic form of the disease, but the ready recognition of polymorphonuclears as reactive cells provides a powerful new tool for investigating the roles of immunologically specific effector cells and nonspecific reactive cells in production of tissue damage.  相似文献   

Differentiated rat glial cell strain in tissue culture   总被引：130，自引：0，他引：130  

P Benda  J Lightbody  G Sato  L Levine  W Sweet 《Science (New York, N.Y.)》1968,161(839):370-371

Rat glial tumors, induced by injections of N-nitrosomethylurea, were plated and propagated in culture. Among a few cell strains obtained, one clone contains S-100 protein, which is unique to brain in vertebrates. Stationary-phase cultures contain approximately ten times more S-100 protein per cell than exponentially growing cells. When injected into newborn rats, cells producing S-100 grew as a glial tumor, which contained S-100 protein.  相似文献   

Rearrangement in the Reaction of 3-Bromopyridine with Sodium Amide and Sodioacetophenone     

Levine R  Leake WW 《Science (New York, N.Y.)》1955,121(3152):780

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Dating and authenticating works of art by measurement of natural alpha emitters     

Keisch B  Feller RL  Levine AS  Edwards RR 《Science (New York, N.Y.)》1967,155(3767):1238-1242

A method for distinguishing between modern and old samples of lead has been used to analyze certain works of art. The basis of the method is the detection of radioactive lead-210, which decays with a 22-year half-life when it is unsupported by its long-lived precursor, radium-226. The latter is separated chemically from lead when lead and lead products are prepared from the ore.  相似文献   

Conserved repetitive epitope recognized by CD4+ clones from a malaria-immunized volunteer   总被引：3，自引：0，他引：3  

E H Nardin  D A Herrington  J Davis  M Levine  D Stuber  B Takacs  P Caspers  P Barr  R Altszuler  P Clavijo 《Science (New York, N.Y.)》1989,246(4937):1603-1606

T cell clones obtained from a human volunteer immunized with Plasmodium falciparum sporozoites specifically recognized the native circumsporozoite (CS) antigen expressed on P. falciparum sporozoites, as well as bacteria- and yeast-derived recombinant falciparum CS proteins. The response of these CD4+ CD8- cells was species-specific, since the clones did not proliferate or secrete gamma interferon when challenged with sporozoites or recombinant CS proteins of other human, simian, or rodent malarias. The epitope recognized by the sporozoite-specific human T cell clones mapped to the 5' repeat region of the CS protein and was contained in the NANPNVDPNANP sequence.  相似文献   

Society of Protozoologists     

Levine ND 《Science (New York, N.Y.)》1955,121(3142):9A

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THE IMPORTANCE OF A CONSIDERATION OF THE FIBER PROTEINS IN THE PROCESS OF BLEACHING COTTON     

Levine BS 《Science (New York, N.Y.)》1915,41(1058):543-545

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Cervical vertebral malformation-malarticulation syndrome in the Bernese mountain dog: clinical and magnetic resonance imaging features     

J. S. Eagleson    J. Diaz  S. R. Platt    M. Kent    J. M. Levine  †  N. J. H. Sharp    S. J. Schatzberg 《The Journal of small animal practice》2009,50(4):186-193

O bjectives : To describe the clinical and magnetic resonance imaging features of cervical vertebral malformation-malarticulation in Bernese mountain dogs.
M ethods : Seven Bernese mountain dogs (four males and three females) were diagnosed with cervical vertebral malformation-malarticulation by magnetic resonance imaging. The following data were evaluated retrospectively: (1) abnormalities of the cervical vertebral column and spinal cord, (2) spinal cord compression, (3) intervertebral disc degeneration and herniation, (4) severity of clinical signs pretreatment and after treatment, (5) type of treatment and (6) outcome.
R esults : Spin echo T1-weighted and T2-weighted images disclosed multi-level, extradural compressive spinal cord lesions (ventral, dorsolateral or both) spanning from intervertebral disc spaces C3-4 to C6-7. In all seven dogs, T2-weighted images disclosed one or more intramedullary hyperintensities associated with extradural spinal cord compression. Surgery was performed in five dogs. Two dogs were managed medically. The prognosis for surgical or conservative management in Bernese mountain dogs was similar to cervical vertebral malformation-malarticulation in other breeds.
C linical S ignificance : Cervical vertebral malformation-malarticulation is an important differential diagnosis for young to middle-aged Bernese mountain dogs with a C1-5 or C6-T2 neuroanatomic localisation. Dorsolateral spinal cord compression associated with articular process hypertrophy was the most common feature of cervical vertebral malformation-malarticulation in the seven Bernese mountain dogs evaluated.  相似文献   

Magnetic Resonance Imaging Characteristics of Necrotizing Meningoencephalitis in Pug Dogs     

B. D. Young  J. M. Levine  G. T. Fosgate  A. de Lahunta  T. Flegel  K. Matiasek  A. Miller  G. Silver  N. Sharp  K. Greer  S. J. Schatzberg 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2009,23(3):527-535

Background: The magnetic resonance imaging (MRI) characteristics of necrotizing meningoencephalitis (NME) are not well documented.
Objectives: To describe common MRI features of NME, to compare the MRI features to histopathologic findings, and to determine whether or not MRI lesions are predictive of survival time.
Animals: Eighteen Pugs with NME.
Methods: Retrospective MRI case study of Pugs identified by a search of medical records at 6 veterinary institutions. Eighteen dogs met inclusion criteria of histopathologically confirmed NME and antemortem MRI exam. MRI lesions were characterized and compared with histopathology with the kappa statistic. Survival times were compared with MRI findings by use of Mann-Whitney U -tests and Spearman's ρ.
Results: Twelve of 18 lesions were indistinctly marginated with mild parenchymal contrast enhancement. Prosencephalic (17/18) lesion distribution included the parietal (16/18), temporal (16/18), and occipital (16/18) lobes. There were cerebellar (4/18) and brainstem (3/18) lesions. Asymmetric lesions were present in both gray and white matter in all dogs. Falx cerebri shift was common (11/18), and 6 dogs had brain herniation. Leptomeningeal enhancement was present in 9/18 dogs. A moderate positive association was found between parenchymal contrast enhancement and both necrosis (κ= 0.45; P = .045) and monocytic inflammation (κ= 0.48; P = .025). Higher MRI lesion burden was correlated with longer time from disease onset to MRI ( P = .045). MRI lesion burden did not correlate to survival time.
Conclusions and Clinical Importance: Asymmetric prosencephalic grey and white matter lesions with variable contrast enhancement were consistent MRI changes in Pugs with confirmed NME. While not pathognomonic for NME, these MRI characteristics should increase confidence in a presumptive diagnosis of NME in young Pugs with acute signs of neurologic disease.  相似文献   

Pregnancy-associated Glycoprotein Profile during the First Trimester of Pregnancy in Egyptian Buffalo Cows     

KA El-Battawy  NM Sousa  O Szenci  JF Beckers 《Reproduction in domestic animals》2009,44(2):161-166

Pregnancy-associated glycoprotein (PAG) concentrations were measured in buffalo cows starting from day 28 after breeding. Oestrus was synchronized in 10 buffaloes using two injections of 25 mg prostraglandin (PG)F_{2 α} (Lutalyse^®) at a 11-day interval. Blood sampling was conducted nearly twice weekly. Results indicated that plasma PAG concentrations in non-pregnant buffaloes were low (<0.20 ng/ml) during the whole experimental period (day 28 to 103), while in pregnant animals plasma PAG levels increased from day 28 (4.48 ± 0.92 ng/ml) until day 41 (27.27 ± 6.74 ng/ml), remaining high (20.71 ± 9.20 ng/ml) until day 103. Progesterone levels were significantly (p < 0.0001) higher in pregnant (3.51–4.80 ng/ml) than in non-pregnant buffaloes (0.28–1.52 ng/ml). A significant difference (p < 0.0001) in plasma PAG concentrations between pregnant and non-pregnant animals starting at day 28 after breeding suggests that PAG-radioimmunoassay could be suitable for pregnancy diagnosis in buffaloes during this period. In conclusion, PAG test offers the advantages that it requires a single plasma sample for early pregnancy diagnosis as well as the accuracy of the test for the detection of pregnancy as early as day 28.  相似文献