The Cornell veterinarian最新文献_第6页

Secretion of tumor necrosis factor by endotoxin-treated equine mammary exudate macrophages: effect of dexamethasone and pentoxifylline. 内毒素处理的马乳腺渗出巨噬细胞分泌肿瘤坏死因子:地塞米松和己酮茶碱的影响。

The Cornell veterinarian Pub Date : 1992-10-01

S B Milam, R J Mackay, L A Skelley

{"title":"Secretion of tumor necrosis factor by endotoxin-treated equine mammary exudate macrophages: effect of dexamethasone and pentoxifylline.","authors":"S B Milam, R J Mackay, L A Skelley","doi":"","DOIUrl":"","url":null,"abstract":"Secretion of tumor necrosis factor (TNF) by equine mammary exudate macrophages (MEM phi) exposed to bacterial lipopolysaccharide (LPS) was dose-dependent and was maximal (216.5 +/- 51.9 U/ml) at 100 micrograms LPS/ml, the highest concentration tested. All concentrations of dexamethasone tested (10(-8) to 10(-4) M) significantly (P less than or equal to 0.05) inhibited TNF production by MEM phi when the agent was added 1 hour before LPS. Pretreatment with pentoxifylline at concentrations greater than 3 micrograms/ml also significantly (P less than or equal to 0.05) reduced secretion of TNF by MEM phi. The inhibitory effect of dexamethasone (10(-4) M) was observed when the agent was added to MEM phi from 30 minutes before until 4 hours after LPS. Pentoxifylline (100 micrograms/ml) significantly (P less than or equal to 0.05) suppressed TNF when added from 2 hours before until 2 hours after LPS; however, when pentoxifylline addition was delayed until 8 hours post-LPS, TNF production was enhanced. These apparent inhibitory effects of dexamethasone and pentoxifylline were not due to reduced macrophage viability or to interfering effects of the agents at the level of the TNF bioassay.","PeriodicalId":22466,"journal":{"name":"The Cornell veterinarian","volume":"82 4","pages":"435-46"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12596558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Olafson Medal. Hans-Jörgen Hansen. 欧拉夫森奖杯。Hans-Jörgen .汉森

The Cornell veterinarian Pub Date : 1992-10-01

L Z Saunders

引用次数: 0

Skin disorders of the laboratory woodchuck (Marmota monax): a retrospective study of 113 cases (1980-1990). 实验室土拨鼠皮肤疾病:113例(1980-1990)的回顾性研究。

The Cornell veterinarian Pub Date : 1992-10-01

R Panic, D W Scott, B C Tennant, W I Anderson, M Johnson

引用次数: 0

Daily variability of equine fecal strongyle egg counts. 马粪圆形卵数的每日变化。

The Cornell veterinarian Pub Date : 1992-10-01

L D Warnick

引用次数: 0

Bacteria and yeast on the surface and within non-inflamed hair follicles of skin biopsies from cats with non-neoplastic dermatoses. 患有非肿瘤性皮肤病的猫皮肤活组织检查中，毛囊表面和未发炎毛囊内的细菌和酵母菌。

The Cornell veterinarian Pub Date : 1992-10-01

D W Scott

引用次数: 0

Bacteria and yeast on the surface and within non-inflamed hair follicles of skin biopsies from dogs with non-neoplastic dermatoses. 非肿瘤性皮肤病狗的皮肤活组织检查中，毛囊表面和未发炎毛囊内的细菌和酵母菌。

The Cornell veterinarian Pub Date : 1992-10-01

D W Scott

引用次数: 0

Microscopic anatomy of the skin of the woodchuck (Marmota monax): comparison of woodchuck hepatitis virus-infected and non-infected animals. 土拨鼠(旱獭)皮肤的显微解剖:土拨鼠肝炎病毒感染和未感染动物的比较。

The Cornell veterinarian Pub Date : 1992-10-01

R Panić, D W Scott, W I Anderson, B C Tennant

{"title":"Microscopic anatomy of the skin of the woodchuck (Marmota monax): comparison of woodchuck hepatitis virus-infected and non-infected animals.","authors":"R Panić, D W Scott, W I Anderson, B C Tennant","doi":"","DOIUrl":"","url":null,"abstract":"Thirty-three woodchucks were used in this study. Seventeen animals were healthy adults, not infected with woodchuck hepatitis virus (WHV); 10 were healthy adults infected with WHV; 4 were noninfected neonates; 2 were infected neonates. Within the 4 groups of woodchucks, no histologic differences were detected on the basis of sex or age. Neither were histologic findings different between infected and noninfected woodchucks of similar ages. The average thickness of skin (as measured from the skin surface to the inner limit of the dermis) from the general haired body area was 2394 microns. The skin was thickest on dorsal body areas, and gradually became thinner on ventral body and medial limb areas. The epidermis consisted of 4 layers: stratum basale, stratum spinosum, stratum granulosum, and stratum corneum. A stratum lucidum was present only in the epidermis of the footpads. There was no clear distinction between the superficial dermis and the deep dermis, except for the subtle differences in arrangement and size of collagen fibers. Elastic fibers were seen throughout the dermis, being more prominent in the superficial portion. Both compound and simple hair follicle arrangements were seen, with compound being more common. The arrectores pilorum muscles were largest in the skin over the dorsal body areas. Sebaceous glands were present either within the outer root sheath of hair follicles or in the dense connective tissue surrounding hair follicles. No apocrine sweat glands were found. However, there were abundant eccrine sweat glands in the subcutaneous fat of the footpads.","PeriodicalId":22466,"journal":{"name":"The Cornell veterinarian","volume":"82 4","pages":"387-404"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12596684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Retrospective serologic survey for the presence of feline immunodeficiency virus antibody: a comparison of ELISA and IFA techniques. 猫免疫缺陷病毒抗体存在的回顾性血清学调查:ELISA和IFA技术的比较。

The Cornell veterinarian Pub Date : 1992-10-01

R W Reid, M C Barr, F W Scott

{"title":"Retrospective serologic survey for the presence of feline immunodeficiency virus antibody: a comparison of ELISA and IFA techniques.","authors":"R W Reid, M C Barr, F W Scott","doi":"","DOIUrl":"","url":null,"abstract":"A total of 878 samples from the New York State Diagnostic Laboratory (NYSDL), dating from January 1984 to May 1987, were examined to detect antibodies to feline immunodeficiency virus (FIV). We used 2 screening methods; an indirect immunofluorescence assay (IFA) and an enzyme-linked immunosorbent assay (ELISA). Of these, 211 samples were from cats that tested negative for feline leukemia virus (FeLV) and exhibited disease signs consistent with immunodeficiency disease; 19 (9.0%) serum samples were determined to be positive. An additional 508 samples were from cats that tested FeLV-negative and were asymptomatic; 6 (1.2%) sera were determined to be positive. The final 159 samples were from FeLV-positive cats and included symptomatic and asymptomatic animals; this population of cats produced 6 (3.8%) positives. Additionally, 521 samples from the Cornell Feline Health Center (CFHC) serum bank, dating back to 1966, were tested to determine the earliest sample in which FIV antibodies could be detected. Five (2.7%) 1971 and 3 (3.3%) 1969 CFHC samples tested positive. The IFA for FIV antibody proved to be a sensitive (97.4%) and specific (100%) test. The ELISA also had high sensitivity (100%) and specificity (99.6%); however, the IFA proved to be more specific than the ELISA when assaying FeLV-positive cats.","PeriodicalId":22466,"journal":{"name":"The Cornell veterinarian","volume":"82 4","pages":"359-69"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12503194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Olafson Medal. William J. Hartley. 奥拉夫森奖章。威廉·j·哈特利。

The Cornell veterinarian Pub Date : 1992-10-01

B R Farrow

引用次数: 0

The use of retrievable electrodes for recording gastric myoelectric activity after spontaneous gastric dilatation volvulus in dogs. 利用可回收电极记录狗自发性胃扩张扭转后的胃肌电活动。

The Cornell veterinarian Pub Date : 1992-10-01

A R Stampley, C F Burrows, G W Ellison

{"title":"The use of retrievable electrodes for recording gastric myoelectric activity after spontaneous gastric dilatation volvulus in dogs.","authors":"A R Stampley, C F Burrows, G W Ellison","doi":"","DOIUrl":"","url":null,"abstract":"Gastric myoelectric activity was measured in 10 dogs with spontaneous gastric dilatation-volvulus (GDV). Myoelectric activity was recorded with temporary, retrievable wire electrodes placed on the serosal surface of the stomach after derotation and tube gastrostomy. Gastric myoelectric activity was recorded for 1 hour daily, beginning with the day of surgery (less than 24 hours), 24, 48, 72, 96, 120, 144, and 168 hours after surgery. Recordings were also obtained for 1 hour daily after feeding, beginning 24 hours after surgery. Bradygastria was the predominate dysrhythmia immediately after surgery and at hour 24. The mean slow wave frequency was more than normal at hours 48 to 168 due to an increase in tachygastria and arrhythmias. The slow wave frequency significantly decreased after feeding at hours 120 and 144. The overall mean percentage of dysrhythmias was significantly decreased after feeding at hour 72 only. The mean percentage of spike activity ranged from 37.7 +/- 12.5 to 75.7 +/- 6.2 throughout the 8-day study period. Thus, gastric myoelectric activity was disrupted in these dogs with spontaneous GDV and subsequent tube gastrostomy. Feeding did not greatly diminish these dysrhythmias.","PeriodicalId":22466,"journal":{"name":"The Cornell veterinarian","volume":"82 4","pages":"423-34"},"PeriodicalIF":0.0,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12596557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0