Sexual Dimorphism in Beaver Neutrophils

Larson, Joseph S.; Knapp, Stephen J.

doi:10.2307/1378451

Cited by 10 publications

(4 citation statements)

References 5 publications

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“…These teeth did not give any discrepancy as in the percentage of FB or BB as compared to the healthy teeth in their respective age groups. In their respective studies, Barr et al [20] and Larson and Knapp[21] have concluded that the Barr chromatin could be differentiated in polymorphonuclear neutrophils in teeth with acute and chronic inflammatory processes. In the present study, the percentage of FB has also proved to be unaffected by inflammation or regressive alteration.…”

Section: Discussionmentioning

confidence: 99%

Gender determination from pulpal tissue

Khorate

Dhupar

Ahmed

et al. 2014

J Forensic Dent Sci

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Objective:To evaluate the diagnostic performance of X (Barr body [BB]) and Y (F body [FB]) chromosomes observed in dental pulp tissue for gender determination of an individual.Materials and Methods:The study was carried out on 100 teeth (50 male and 50 female), which were indicated for extraction. The teeth were sectioned at various intervals (within 12 h to 49 days post-extraction), and the pulpal tissue was obtained. Two slides for each pulp tissue were prepared, one for 5% Quinacrine dihydrochloride stain (FB) and the other for Hemotoxylin and Eosin stain (BB). The slides were then observed under the fluorescent microscope for FB and under the light microscope for the BB respectively.Results:Gender determination from human pulp is possible up to 7 weeks. The percentage of FB and BB decrease gradually as the time interval increases. Further, an equation was derived from the data based on the canonical discriminant function coefficients.Conclusion:The determination of gender based on a joint search for the presence or absence of X (BB) and Y (FB) Chromosome is a reliable and cost-effective technique.

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Section: Discussionmentioning

confidence: 99%

Gender determination from pulpal tissue

Khorate

Dhupar

Ahmed

et al. 2014

J Forensic Dent Sci

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show abstract

“…This technique is not only limited to healthy teeth, where the chromatin is recognized in fibroblasts. It also is possible to determine sex by differentiation of Barr chromatin in polymorphonuclear neutrophils in teeth with acute and chronic inflammatory processes (Barr, 1957;Larson & Knapp, 1971).…”

Section: Discussionmentioning

confidence: 99%

Sex Chromatin in Dental Pulp: Performance of Diagnosis Test and Gold Standard Generation

Galdames

Henríquez

2010

Int. J. Morphol.

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“…Sexing live beavers is easy by palpating for the presence or absence of the os penis (Osborn 1955). However, the sex of young beavers may be difficult to determine in the field (Osborn 1955, Larson & Knapp 1971, Brady & Svendsen 1981), especially for inexperienced researchers. In this situation, the species of the young beavers in question can be determined by identifying the species of an older beaver living in the same colony because both species live in discrete family units and extremely young beavers do not wander far away from their lodges.…”

Section: Discussionmentioning

confidence: 99%