Uropygial gland volume and malaria infection are related to survival in migratory house martins

2017 ◽  
Vol 48 (11) ◽  
pp. 1355-1359 ◽  
Author(s):  
S. Magallanes ◽  
L. García-Longoria ◽  
C. López-Calderón ◽  
M. Reviriego ◽  
F. de Lope ◽  
...  
Keyword(s):  
Malaria Infection ◽  
Uropygial Gland ◽  
Gland Volume

scholarly journals Variation of uropygial gland volume and malaria infection between urban-rural environment in the house sparrow

Ecosistemas ◽  
2020 ◽  
Vol 29 (2) ◽  
Author(s):  
Sergio Magallanes Argany ◽  
Luz García-Longoria ◽  
Jaime Muriel ◽  
Florentino de Lope ◽  
Alfonso Marzal
Keyword(s):  
Malaria Infection ◽  
House Sparrow ◽  
Rural Environment ◽  
Uropygial Gland ◽  
Gland Volume ◽  
Urban Rural

scholarly journals Exploring the adjustment to parasite pressure hypothesis: differences in uropygial gland volume and haemosporidian infection in palearctic and neotropical birds

2020 ◽  
Author(s):  
Sergio Magallanes ◽  
Anders Pape Møller ◽  
Charlene Luján-Vega ◽  
Esteban Fong ◽  
Daniel Vecco ◽  
...  
Keyword(s):  
Body Size ◽  
Relative Size ◽  
Bird Species ◽  
Uropygial Gland ◽  
Gland Volume ◽  
Selective Forces ◽  
Species Richness And Abundance ◽  
Additional Support ◽  
The Tropics

Abstract Parasites are globally widespread pathogenic organisms, which impose important selective forces upon their hosts. Thus, in accordance with the Adjustment to parasite pressure hypothesis, it is expected that defenses among hosts vary relative to the selective pressure imposed by parasites. According to the latitudinal gradient in diversity, species richness and abundance of parasites peak near the equator. The uropygial gland is an important defensive exocrine gland against pathogens in birds. Size of the uropygial gland has been proposed to vary among species of birds because of divergent selection by pathogens on their hosts. Therefore, we should expect that bird species from the tropics should have relatively larger uropygial glands for their body size than species from higher latitudes. However, this hypothesis has not yet been explored. Here, we analyze the size of the uropygial gland of 1719 individual birds belonging to 36 bird species from 3 Neotropical (Peru) and 3 temperate areas (Spain). Relative uropygial gland volume was 12.52% larger in bird species from the tropics than from temperate areas. This finding is consistent with the relative size of this defensive organ being driven by selective pressures imposed by parasites. We also explored the potential role of this gland as a means of avoiding haemosporidian infection, showing that species with large uropygial glands for their body size tend to have lower mean prevalence of haemosporidian infection, regardless of their geographical origin. This result provides additional support for the assumption that secretions from the uropygial gland reduce the likelihood of becoming infected with haemosporidians.

scholarly journals Volume and antimicrobial activity of secretions of the uropygial gland are correlated with malaria infection in house sparrows

2016 ◽  
Vol 9 (1) ◽  
Author(s):  
Sergio Magallanes ◽  
Anders Pape Møller ◽  
Luz García-Longoria ◽  
Florentino de Lope ◽  
Alfonso Marzal
Keyword(s):  
Antimicrobial Activity ◽  
Malaria Infection ◽  
Uropygial Gland ◽  
House Sparrows

Reproductive success related to uropygial gland volume varies with abundance of conspecifics in barn swallows Hirundo rustica

2018 ◽  
Vol 72 (12) ◽  
Author(s):  
Sergio Magallanes ◽  
Cosme López-Calderón ◽  
Javier Balbontín ◽  
Anders P. Møller ◽  
Florentino de Lope ◽  
...  
Keyword(s):  
Reproductive Success ◽  
Hirundo Rustica ◽  
Uropygial Gland ◽  
Gland Volume ◽  
Barn Swallows

scholarly journals The uropygial gland microbiome of house sparrows with malaria infection

2021 ◽  
Vol 52 (2) ◽  
Author(s):  
Elin Videvall ◽  
Alfonso Marzal ◽  
Sergio Magallanes ◽  
Robert C. Fleischer ◽  
Kathya Espinoza ◽  
...  
Keyword(s):  
Malaria Infection ◽  
Uropygial Gland ◽  
House Sparrows

1709: The PCA3 Score is Independent of Prostate Gland Volume, and Can Synergize with other Patient Information for Predicting Biopsy Outcome

2007 ◽  
Vol 177 (4S) ◽  
pp. 568-568 ◽  
Author(s):  
Jack Groskopf ◽  
Ina L. Deras ◽  
Amy Blase ◽  
Sheila M.J. Aubin ◽  
Seongjoon Koo ◽  
...  
Keyword(s):  
Patient Information ◽  
Prostate Gland ◽  
Gland Volume

1962: Correlation between Prostate Cancer Detection Rate and Gland Volume: Is Increased Biopsy Sampling Needed for Patients with a Large Prostate?

2007 ◽  
Vol 177 (4S) ◽  
pp. 651-651
Author(s):  
Nicolas B. Delongchamps ◽  
Vishal Chandan ◽  
Richard Jones ◽  
Gregory Threatte ◽  
Mary Jumbelic ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Cancer Detection ◽  
Detection Rate ◽  
Cancer Detection Rate ◽  
Prostate Cancer Detection ◽  
Gland Volume ◽  
Large Prostate

Platelet Hypersensitivity in Acute Malaria (Plasmodium falciparum) Infection in Man

1981 ◽  
Vol 46 (02) ◽  
pp. 547-549 ◽  
Author(s):  
E M Essien ◽  
M I Ebhota
Keyword(s):  
Plasmodium Falciparum ◽  
Malaria Infection ◽  
Light Transmission ◽  
Human Platelet ◽  
Platelet Rich Plasma ◽  
Wave Pattern ◽  
Falciparum Infection ◽  
Secondary Wave ◽  
Control Subjects ◽  
The Mean

SummaryDuring acute malaria infection, platelets in human platelet-rich plasma are hypersensitive to the addition of ADP between 1.0 uM and 5.0 uM, or adrenaline 0.11 uM as aggregating agents. The mean maximum aggregation amplitude (as % of light transmission) obtained from 8 subjects in response to added ADP (1.0 uM), 39.8 ± 27 (1SD), was significantly greater than the value in 6 controls (5.2±6.7 (1SD); t = 3, 51 P <0.005). A similar pattern of response was obtained with higher ADP concentrations (2.4,4.5 or 5.0 uM) in 22 patients and 20 control subjects (89.9±14.9% vs 77.8±16.5% (1SD) t = 2.45, P <0.02). Addition of 4.5 uM ADP to patient PRP usually evoked only a single aggregation wave (fused primary and secondary waves) while the typical primary and secondary wave pattern was usually obtained from controls.Mean plasma B-thromboglobulin (BTG) concentration in 7 patients (208.3 ± 15.6 ng/ml) was significantly higher than the value in 6 control subjects (59.2±15.7 ng/ml; t = 13.44, P <0.002).

Compensated 131I-therapy of solitary autonomous thyroid nodules: effect on thyroid size and early hypothyroidism

1986 ◽  
Vol 113 (2) ◽  
pp. 226-232 ◽  
Author(s):  
Laszlo Hegedüs ◽  
Dagmar Veiergang ◽  
Steen Karstrup ◽  
Jens Mølholm Hansen
Keyword(s):  
Thyroid Gland ◽  
Thyroid Function ◽  
Thyroid Nodules ◽  
Thyroid Volume ◽  
131I Therapy ◽  
Important Place ◽  
Gland Volume ◽  
Thyroid Gland Volume ◽  
One Year ◽  
Hyperthyroid Patients

Abstract. Thyroid function and thyroid gland volume, ultrasonically determined, were investigated in 27 hyperthyroid patients with solitary autonomous thyroid nodules before and during one year after 131I-treatment. Total thyroid volume decreased gradually from 40.9 ± 3.5 ml (mean ± sem) before treatment to 23.9 ± 1.8 ml (P < 0.001) at 3 months after 131I-treatment. No further change was observed. All but two patients received only one dose of 131I, and in spite of a significant decrease also of the non-adenoma side of the gland, none became hypothyroid. We conclude that 131I-therapy has an important place in the treatment of solitary autonomous thyroid nodules since all our patients became euthyroid within 3 months, only 2 of 27 patients needed more than one dose of 131I, no cases of hypothyroidism occurred, and thyroid volume was substantially decreased.

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