The Experts below are selected from a list of 261 Experts worldwide ranked by ideXlab platform
Elena Kokoliou - One of the best experts on this subject based on the ideXlab platform.
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Interaction of shaving with skin and hair
internal, 2017Co-Authors: Elena KokoliouAbstract:physiological properties on different body areas (dryness, topography, sebum secretion etc.) PRE-SHAVING ENVIRONMENT EFFECT Wet hair is more elastic
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Ethnic hair & skin properties
internal, 2017Co-Authors: Elena KokoliouAbstract:due to greater pore size, increased number of apocrine gland and greater sebum secretion. Caucasian origin men have less elastic skin / more firm skin than
Eduardo N Barata - One of the best experts on this subject based on the ideXlab platform.
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11 ketotestosterone stimulates putative sex pheromone production in the male peacock blenny salaria pavo risso 1810
Biology of Reproduction, 2008Co-Authors: Rui M Serrano, Orlando Lopes, Peter C Hubbard, Jorge Araujo, Eduardo N Barata, Adelino V. M. CanarioAbstract:Abstract Male peacock blennies (Salaria pavo) release odors from their anal glands and, possibly, from their gonads that attract reproductive females. The current study investigated the effects of 11-ketotestosterone (KT) on development of the anal glands, testes, and accessory testicular organs as well as the subsequent olfactory potency of their Secretions. After 3 wk of KT treatment (5 mg/kg in silastic implants), clusters of cells secreting neutral mucins differentiated in the anal gland of all treated males, whereas this occurred in only one control male. Secretions by anal glands from KT-treated males elicited greater olfactory responses, as assessed by electro-olfactography, than those from controls. Treatment with KT stimulated testicular gland growth and sialomucin secretion but had no clear effect on the germinal region of the testis; KT also stimulated enlargement of, and fluid secretion in, the blind pouches (paired evaginations of the spermatic ducts). Secretions by the testes and fluid in bl...
Alfonso Marzal - One of the best experts on this subject based on the ideXlab platform.
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Volume and antimicrobial activity of Secretions of the uropygial gland are correlated with malaria infection in house sparrows.
Parasites & vectors, 2016Co-Authors: Sergio Magallanes, Luz García-longoria, Florentino De Lope, Anders Pape Moller, Alfonso MarzalAbstract:Animals have developed a wide range of defensive mechanisms against parasites to reduce the likelihood of infection and its negative fitness costs. The uropygial gland is an exocrine gland that produces antimicrobial and antifungal Secretions with properties used as a defensive barrier on skin and plumage. This secretion has been proposed to affect the interaction between avian hosts and their ectoparasites. Because uropygial Secretions may constitute a defense mechanism against ectoparasites, this may result in a reduction in prevalence of blood parasites that are transmitted by ectoparasitic vectors. Furthermore, other studies pointed out that vectors could be attracted by uropygial Secretions and hence increase the probability of becoming infected. Here we explored the relationship between uropygial gland size, antimicrobial activity of uropygial Secretions and malaria infection in house sparrows Passer domesticus. A nested-PCR was used to identify blood parasites infection. Flow cytometry detecting absolute cell counting assessed antimicrobial activity of the uropygial gland secretion Uninfected house sparrows had larger uropygial glands and higher antimicrobial activity in uropygial Secretions than infected individuals. We found a positive association between uropygial gland size and scaled body mass index, but only in uninfected sparrows. Female house sparrows had larger uropygial glands and higher antimicrobial activity of gland Secretions than males. These findings suggest that uropygial gland Secretions may play an important role as a defensive mechanism against malaria infection.
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volume and antimicrobial activity of Secretions of the uropygial gland are correlated with malaria infection in house sparrows
Parasites & Vectors, 2016Co-Authors: Sergio Magallanes, Florentino De Lope, Anders Pape Moller, Luz Garcialongoria, Alfonso MarzalAbstract:Background Animals have developed a wide range of defensive mechanisms against parasites to reduce the likelihood of infection and its negative fitness costs. The uropygial gland is an exocrine gland that produces antimicrobial and antifungal Secretions with properties used as a defensive barrier on skin and plumage. This secretion has been proposed to affect the interaction between avian hosts and their ectoparasites. Because uropygial Secretions may constitute a defense mechanism against ectoparasites, this may result in a reduction in prevalence of blood parasites that are transmitted by ectoparasitic vectors. Furthermore, other studies pointed out that vectors could be attracted by uropygial Secretions and hence increase the probability of becoming infected. Here we explored the relationship between uropygial gland size, antimicrobial activity of uropygial Secretions and malaria infection in house sparrows Passer domesticus.
Rui M Serrano - One of the best experts on this subject based on the ideXlab platform.
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11 ketotestosterone stimulates putative sex pheromone production in the male peacock blenny salaria pavo risso 1810
Biology of Reproduction, 2008Co-Authors: Rui M Serrano, Orlando Lopes, Peter C Hubbard, Jorge Araujo, Eduardo N Barata, Adelino V. M. CanarioAbstract:Abstract Male peacock blennies (Salaria pavo) release odors from their anal glands and, possibly, from their gonads that attract reproductive females. The current study investigated the effects of 11-ketotestosterone (KT) on development of the anal glands, testes, and accessory testicular organs as well as the subsequent olfactory potency of their Secretions. After 3 wk of KT treatment (5 mg/kg in silastic implants), clusters of cells secreting neutral mucins differentiated in the anal gland of all treated males, whereas this occurred in only one control male. Secretions by anal glands from KT-treated males elicited greater olfactory responses, as assessed by electro-olfactography, than those from controls. Treatment with KT stimulated testicular gland growth and sialomucin secretion but had no clear effect on the germinal region of the testis; KT also stimulated enlargement of, and fluid secretion in, the blind pouches (paired evaginations of the spermatic ducts). Secretions by the testes and fluid in bl...
Sergio Magallanes - One of the best experts on this subject based on the ideXlab platform.
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Volume and antimicrobial activity of Secretions of the uropygial gland are correlated with malaria infection in house sparrows.
Parasites & vectors, 2016Co-Authors: Sergio Magallanes, Luz García-longoria, Florentino De Lope, Anders Pape Moller, Alfonso MarzalAbstract:Animals have developed a wide range of defensive mechanisms against parasites to reduce the likelihood of infection and its negative fitness costs. The uropygial gland is an exocrine gland that produces antimicrobial and antifungal Secretions with properties used as a defensive barrier on skin and plumage. This secretion has been proposed to affect the interaction between avian hosts and their ectoparasites. Because uropygial Secretions may constitute a defense mechanism against ectoparasites, this may result in a reduction in prevalence of blood parasites that are transmitted by ectoparasitic vectors. Furthermore, other studies pointed out that vectors could be attracted by uropygial Secretions and hence increase the probability of becoming infected. Here we explored the relationship between uropygial gland size, antimicrobial activity of uropygial Secretions and malaria infection in house sparrows Passer domesticus. A nested-PCR was used to identify blood parasites infection. Flow cytometry detecting absolute cell counting assessed antimicrobial activity of the uropygial gland secretion Uninfected house sparrows had larger uropygial glands and higher antimicrobial activity in uropygial Secretions than infected individuals. We found a positive association between uropygial gland size and scaled body mass index, but only in uninfected sparrows. Female house sparrows had larger uropygial glands and higher antimicrobial activity of gland Secretions than males. These findings suggest that uropygial gland Secretions may play an important role as a defensive mechanism against malaria infection.
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volume and antimicrobial activity of Secretions of the uropygial gland are correlated with malaria infection in house sparrows
Parasites & Vectors, 2016Co-Authors: Sergio Magallanes, Florentino De Lope, Anders Pape Moller, Luz Garcialongoria, Alfonso MarzalAbstract:Background Animals have developed a wide range of defensive mechanisms against parasites to reduce the likelihood of infection and its negative fitness costs. The uropygial gland is an exocrine gland that produces antimicrobial and antifungal Secretions with properties used as a defensive barrier on skin and plumage. This secretion has been proposed to affect the interaction between avian hosts and their ectoparasites. Because uropygial Secretions may constitute a defense mechanism against ectoparasites, this may result in a reduction in prevalence of blood parasites that are transmitted by ectoparasitic vectors. Furthermore, other studies pointed out that vectors could be attracted by uropygial Secretions and hence increase the probability of becoming infected. Here we explored the relationship between uropygial gland size, antimicrobial activity of uropygial Secretions and malaria infection in house sparrows Passer domesticus.
