Comparison of sugar and sodium nitrate flotation methods for detection of parasites in dog feces

At Iowa State University, the standard flotation method used to detect parasite eggs and cysts in dog feces has long been centrifugation using sugar (Sheather\u27s) solution. In recent years, several kits using sodium nitrate have been available commercially. The purpose of this study was to compare the sugar centrifugation and sodium nitrate flotation methods in their ability to detect parasite eggs and cysts in dog feces

Dr. Greve Reviews: Veterinary Conversations with Mid-Twentieth Century Leaders, by Ole V. Stalheim

Veterinary Conversations with Mid-Twentieth Century Leaders, By Ole V. Stalheim. 328 pp., illustrated, hardcover. Iowa State University Press, 2121 S. State Avenue, Ames, Iowa 50014-8300. ISBN 0-8138-2995-X. 1996. $29.95. Dr. Stalheim, a retired veterinary medical officer at the National Animal Disease Center in Ames, Iowa, has turned his energy to studying the history of veterinary medicine. He has authored several articles in his field, and this is his third book

Dr. Greve Reviews The Prairie Practitioners - 20th Century South Dakota Veterinarians Compiled and edited by T.B. Ludgate, DVM, and J. L. Kitzler

The idea of The Prairie Practitioners was sparked by the advent of the centennial of the South Dakota Veterinary Medical Association in 1991. The editors realized that in South Dakota there were dozens of very interesting stories to be told about the life of the hard-working veterinarians on the prairie. From 1993 through 1995, they collected accounts (most of them written in the first person) from young and old veterinarians throughout the state. In all there are over 125 accounts. Some are less than a page long and some are a few pages long. All help the reader build a picture of what practice on the northern prairies was like over the past 3 generations

Frank Kenneth Ramsey - A Tribute

In the midmorning of Thursday, January 9, there was a routine cataract removal, an uneventful postoperative period, and the drive home. He lay down for a nap in the early afternoon, but he never awoke. The impact of the loss of Dr. Frank Ramsey is widely and keenly felt in the College of Veterinary Medicine, across the university, and in uncountable veterinary offices around the world. As evidence of what he\u27had meant to the college, he was named Clarence Covault Distinguished Professor, and he carried numerous other honors, such as Cardinal Key and Professor of the Year. As evidence of his impact on the international scene, he had been invited to visit in several countries on most of the continents to share his expertise on veterinary education and bovine mucosal disease. For several days after his death, flags in front of the College of Veterinary Medicine were flying at half-mast, because the college mourned the loss of one of her most illustrious sons

Suspected Case of Loxoscelism (Spider-bite) in a Dog

Loxoscelism is a disease caused by envenomation by spiders belonging to the genus Loxosceles. Loxoscelism (also known as necrotic arachnidism or gangrenous spot ) has been mentioned as a disease in humans since the 1870\u27S,1 but the etiological agent was not discovered until 1934.2 Since the 1930\u27s there has been an abundance of material published on loxoscelism in humans in South America. However, this literature remained mostly unknown in North America until 1957, when a report implicated Loxosceles reclusa as the possible etiological agent of spider-bite in Missouri and other midwestern states. 2 Subsequently a significant amount of research has been reported in the United States on the condition in humans, but no reports have been found in veterinary journals. The lack of reports in the veterinary literature may be responsible for loxoscelism being overlooked or misdiagnosed in animals

Prevalence of Intestinal Parasites in Iowa Dogs A comparison between 1965-68 and 1988

The prevalence of common intestinal parasites of dogs was determined and compared for the years 1965-68 and 1988 to determine what change, if any, has occurred in the prevalence of parasitisms over the past 20 years. Feces from dogs admitted to the Veterinary Teaching Hospital during these 2 periods were evaluated as part of the routine physical examination procedure. A sugar centrifugation method was used

Molecular evidence for hybridization in the aquatic plant Limosella on sub-Antarctic Marion Island

DNA sequence data have become a crucial tool in assessing the relationship between morphological variation and genetic and taxonomic groups, including in the Antarctic biota. Morphologically distinct populations of submersed aquatic vascular plants were observed on sub-Antarctic Marion Island, potentially representing the two species of such plants listed in the island's flora, Limosella australis R.Br. (Scrophulariaceae) and Ranunculus moseleyi Hook.f. (Ranunculaceae). To confirm their taxonomic identity, we sequenced a nuclear locus (internal transcribed spacer; ITS) and two plastid loci (trnL-trnF, rps16) from three specimens collected on Marion Island and compared the sequences with those in public sequence databases. For all three loci, sequences from the Marion Island specimens were nearly identical despite morphological dissimilarity, and phylogenetic analyses resolved them to a position in Limosella. In phylogenetic trees and comparisons of species-specific sequence polymorphisms, the Marion Island specimens were closest to a clade comprising Limosella aquatica L., L. curdieana F.Muell. and L. major Diels for ITS and closest to L. australis for the plastid loci. Cytonuclear discordance suggests a history of hybridization or introgression, which may have consequences for morphological variability and ecological adaptation.The National Research Foundationhttp://journals.cambridge.org/action/displayJournal?jid=ANSam2022Plant Production and Soil Scienc

The Cortical Signature of Alzheimer's Disease: Regionally Specific Cortical Thinning Relates to Symptom Severity in Very Mild to Mild AD Dementia and is Detectable in Asymptomatic Amyloid-Positive Individuals

Alzheimer's disease (AD) is associated with neurodegeneration in vulnerable limbic and heteromodal regions of the cerebral cortex, detectable in vivo using magnetic resonance imaging. It is not clear whether abnormalities of cortical anatomy in AD can be reliably measured across different subject samples, how closely they track symptoms, and whether they are detectable prior to symptoms. An exploratory map of cortical thinning in mild AD was used to define regions of interest that were applied in a hypothesis-driven fashion to other subject samples. Results demonstrate a reliably quantifiable in vivo signature of abnormal cortical anatomy in AD, which parallels known regional vulnerability to AD neuropathology. Thinning in vulnerable cortical regions relates to symptom severity even in the earliest stages of clinical symptoms. Furthermore, subtle thinning is present in asymptomatic older controls with brain amyloid binding as detected with amyloid imaging. The reliability and clinical validity of AD-related cortical thinning suggests potential utility as an imaging biomarker. This “disease signature” approach to cortical morphometry, in which disease effects are mapped across the cortical mantle and then used to define ROIs for hypothesis-driven analyses, may provide a powerful methodological framework for studies of neuropsychiatric diseases

The Cortical Signature of Alzheimer's Disease: Regionally Specific Cortical Thinning Relates to Symptom Severity in Very Mild to Mild AD Dementia and is Detectable in Asymptomatic Amyloid-Positive Individuals

Alzheimer's disease (AD) is associated with neurodegeneration in vulnerable limbic and heteromodal regions of the cerebral cortex, detectable in vivo using magnetic resonance imaging. It is not clear whether abnormalities of cortical anatomy in AD can be reliably measured across different subject samples, how closely they track symptoms, and whether they are detectable prior to symptoms. An exploratory map of cortical thinning in mild AD was used to define regions of interest that were applied in a hypothesis-driven fashion to other subject samples. Results demonstrate a reliably quantifiable in vivo signature of abnormal cortical anatomy in AD, which parallels known regional vulnerability to AD neuropathology. Thinning in vulnerable cortical regions relates to symptom severity even in the earliest stages of clinical symptoms. Furthermore, subtle thinning is present in asymptomatic older controls with brain amyloid binding as detected with amyloid imaging. The reliability and clinical validity of AD-related cortical thinning suggests potential utility as an imaging biomarker. This “disease signature” approach to cortical morphometry, in which disease effects are mapped across the cortical mantle and then used to define ROIs for hypothesis-driven analyses, may provide a powerful methodological framework for studies of neuropsychiatric diseases.Psycholog