scholarly journals The role of melanocortin 1 receptor on melanogenesis pathway in skin color differentiation of red tilapia

2022 ◽  
Vol 22 ◽  
pp. 100946
Author(s):  
Lan-mei Wang ◽  
Bing-jie Jiang ◽  
Wen-bin Zhu ◽  
Jian-jun Fu ◽  
Ming-kun Luo ◽  
...  
Keyword(s):  
Skin Color ◽  
Melanocortin 1 Receptor ◽  
Red Tilapia

Transcutaneous Bilirubinometry: A New Light on an Old Subject

PEDIATRICS ◽  
1982 ◽  
Vol 69 (1) ◽  
pp. 124-125 ◽  
Author(s):  
Thomas Hegyi
Keyword(s):  
Central Nervous System ◽  
Skin Color ◽  
Serum Bilirubin ◽  
Cellular Injury ◽  
Bilirubin Concentration ◽  
Specific Serum ◽  
Relationship Of ◽  
The Relationship ◽  
Transcutaneous Bilirubinometry

The role of bilirubin as a cause of central nervous system morbidity in the newborn infant has been well recognized for several decades. The specific serum concentration that leads to cellular injury, as well as the precise mechanism of damage, are as yet unclear but general principles of therapy have been established. Early detection of hyperbilirubinemia is based on the clinical assessment of dermal icterus followed by appropriate serum tests to determine the degree of serum bilirubin elevation. The relationship of dermal icterus and serum bilirubin concentration has intrigued clinicians for more than a century.1 In an attempt to utilize skin color as an index of hyperbilirubinemia many techniques have been investigated.

scholarly journals Skin color and perceived discrimination: a comparative study between Brazilians and Mozambicans

2021 ◽  
Author(s):  
Marcos Emanoel Pereira ◽  
Elza Maria Techio ◽  
José Luís Álvaro ◽  
Carina Feitosa ◽  
Benvindo Maloa ◽  
...  
Keyword(s):  
Racial Discrimination ◽  
Skin Color ◽  
Life Stories ◽  
Black People ◽  
Perceived Discrimination ◽  
Self Report ◽  
Sample Population ◽  
Brazilian Sample ◽  
Social Domination

Despite the numerous efforts to reduce prejudice and social discrimination as well as their repercussions, such phenomena are still part of everyday life and mark individual life stories. The experiences of the target and the agent of discrimination were differents. The present study addresses a gap in the literature of social psychology: through a relational analysis, it explores the perceptions of the target of discrimination without leaving aside the perspective of the agent. Using a computerized version of a self-report instrument, we aimed to assess the relation between the experience of racial discrimination and skin color and to what extent this relation is modulated by psychosocial and sociodemographic variables in two national contexts, Brazil and Mozambique. A total of 150 university students participated in the study, 89 from Brazil and 61 from Mozambique. The results show that in both countries the participants report more experiences of discrimination coming from White than from Black people, with a larger difference for the Brazilian sample population. The study also verified that the darker the person’s skin color, the higher their perception of having been discriminated against. In the Brazilian group, the accounts of discrimination coming both from White and Black people are associated with darker skin color. In the Mozambican group, diversely, participants with lighter and darker skin color perceived being the target of discrimination, inflicted both by White and Black people. Finally, we identified that perceived discrimination is predicted by skin color. The discussion focuses on the perspective of the targets of discrimination and highlights the role of skin color in the process of perceiving racial discrimination, especially regarding the psychosocial variables motivation to control prejudice and social domination.

scholarly journals Like Mother, like Son: Physical Activity, Commuting, and Associated Demographic Factors

2020 ◽  
Vol 12 (14) ◽  
pp. 5631 ◽  
Author(s):  
Caroline Brand ◽  
Cézane Priscila Reuter ◽  
Arieli Fernandes Dias ◽  
Jorge Mota ◽  
Michael Duncan ◽  
...  
Keyword(s):  
Physical Activity ◽  
Rural Areas ◽  
Urban Areas ◽  
Skin Color ◽  
Demographic Factors ◽  
Active Commuting ◽  
Cross Sectional ◽  
The Relationship ◽  
Living Area

A mother’s healthy conduct may lead to the healthy conduct of their children. Thus, this study aimed to verify the role of demographic factors in the relationship between mothers’ physical activity (PA) and commuting to work with children and adolescent’s PA and commuting to school. This cross-sectional study comprised 1421 children and adolescents aged 6 to 17 years and 1421 mothers, from Brazil. PA, commuting, socioeconomic status (SES), skin color/ethnicity, and living area were evaluated by questionnaire. Logistic binary regression models were used. Results indicated that mothers’ PA and commuting were associated with children and adolescent’s PA and commuting to school in crude and adjusted models. Considering the role of the demographic factors, an association was only observed for girls in the relationship between mother’s PA with children’s PA. In adolescents, an association was observed in both high/low SES, boys/girls, and rural/urban areas. Regarding children and adolescent active commuting to school, there was an association with mothers commuting. All demographic factors were strongly associated, except for rural areas. Therefore, mothers’ PA as well as commuting to work are associated with children and adolescent’s PA and commuting to school. Sex, living area, and SES are the related demographic factors.

scholarly journals Comparative microRNA-seq Analysis Depicts Candidate miRNAs Involved in Skin Color Differentiation in Red Tilapia

2018 ◽  
Vol 19 (4) ◽  
pp. 1209 ◽  
Author(s):  
Lanmei Wang ◽  
Wenbin Zhu ◽  
Zaijie Dong ◽  
Feibiao Song ◽  
Juanjuan Dong ◽  
...  
Keyword(s):  
Skin Color ◽  
Red Tilapia ◽  
Candidate Mirnas

Role of light in human skin color variation

1975 ◽  
Vol 43 (3) ◽  
pp. 393-408 ◽  
Author(s):  
W. C. Quevedo ◽  
T. B. Fitzpatrick ◽  
M. A. Pathak ◽  
K. Jimbow
Keyword(s):  
Human Skin ◽  
Skin Color ◽  
Color Variation ◽  
Role Of Light

scholarly journals Understanding rates of genital-anal injury: Role of skin color and skin biomechanics

2019 ◽  
Vol 66 ◽  
pp. 120-128 ◽  
Author(s):  
Marilyn S. Sommers ◽  
Yadira Regueira ◽  
Deborah A. Tiller ◽  
Janine S. Everett ◽  
Kathleen Brown ◽  
...  
Keyword(s):  
Skin Color ◽  
Skin Biomechanics

Characterization and functional analysis of slc7a11 gene, involved in skin color differentiation in the red tilapia

2019 ◽  
Vol 236 ◽  
pp. 110529 ◽  
Author(s):  
Lan-mei Wang ◽  
Hong-yi Bu ◽  
Fei-biao Song ◽  
Wen-bin Zhu ◽  
Jian-jun Fu ◽  
...  
Keyword(s):  
Functional Analysis ◽  
Skin Color ◽  
Red Tilapia

scholarly journals Genetic characterization of coat color genes in Brazilian Crioula sheep from a conservation nucleus

2017 ◽  
Vol 52 (8) ◽  
pp. 615-622 ◽  
Author(s):  
Lilian Cristina Gomes Cavalcanti ◽  
José Carlos Ferrugem Moraes ◽  
Danielle Assis de Faria ◽  
Concepta Margaret McManus ◽  
Alcebiades Renato Nepomuceno ◽  
...  
Keyword(s):  
Coat Color ◽  
Color Variation ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Epistatic Interactions ◽  
Low Frequencies ◽  
Melanocortin 1 Receptor ◽  
Tyrosinase Related Protein

Abstract: The objective of this work was to identify single nucleotide polymorphisms (SNPs) in resequencing data from MC1R, ASIP, and TYRP1 genes derived from Crioula sheep (Ovis aris) with different coat colors. Polymorphisms in the ASIP (agouti-signaling protein), MC1R (melanocortin 1 receptor), and TRYP1 (tyrosinase-related protein 1) genes were analyzed in 115 sheep from Embrapa’s conservation nucleus of crioula sheep, in Brazil. A total of 7,914 bp were sequenced per animal, and 14 SNPs were identified. Two additional assays were performed to detect duplications and deletions in the ASIP gene. Ninety-five percent of the coat color variation was explained by epistatic interactions observed between specific alleles in the MC1R and ASIP genes. Evidence suggests an important role of TYRP1 variants for wool color, despite their low frequencies. The marker panel was efficient enough in predicting coat color in the studied animals and, therefore, can be used to implement a marker-assisted selection program in the conservation nucleus of sheep of the crioula breed.

scholarly journals Transcriptome Analysis of Skin Color Variation During and after Overwintering of Malaysian Red Tilapia

2021 ◽  
Author(s):  
bingjie Jiang ◽  
lanmei Wang ◽  
mingkun Luo ◽  
jianjun Fu ◽  
wenbin Zhu ◽  
...  
Keyword(s):  
Skin Color ◽  
Molecular Mechanisms ◽  
Expression Patterns ◽  
Color Variation ◽  
Future Research ◽  
Red Tilapia ◽  
Pink Color ◽  
Pathway Analyses ◽  
Specificity Measure ◽  
Black Color

Abstract The commercial value of red tilapia is hampered by variations in skin color during overwintering. In this study, three types skin of red tilapia, including the skin remained pink color during and after overwintering (WP), the skin changed from pink color to black color during overwintering and remained black color after overwintering (PB), and the skin changed from pink color to black color during overwintering but recovered to pink color when the temperature rose after overwintering (BP), were used to analyze their molecular mechanisms of color variation. The transcriptome results revealed that the PB, WP, and BP libraries had 42, 43, and 43 million clean reads, respectively. The top 10 abundance mRNAs and specific mRNAs (specificity measure SPM > 0.9) were screened. After comparing intergroup gene expression levels, there were 2528, 1924 and 1939 differentially expressed genes (DEGs) between BP and PB, BP and WP, and PB and WP, respectively. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses of color-related mRNAs showed that a number of DEGs, including tyrp1, tyr, pmel, mitf, mc1r, asip, tat, hpdb and foxd3, might play a potential role in pigmentation. Additionally, the co-expression patterns of genes were detected within the pigment-related pathways by PPI network from PB_WP group. Furthermore, DEGs from the apoptosis and autophagy pathways, such as baxα, beclin1, and atg7, might be involved in the fading of red tilapia melanocytes. The findings will aid in understanding the molecular mechanism underlying skin color variation in red tilapia during and after overwintering, as well as lay a foundation for future research aimed at improving red tilapia skin color characteristics.

scholarly journals Effects of News Stereotypes on the Perception of Facial Threat

2015 ◽  
Vol 27 (2) ◽  
pp. 78-86 ◽  
Author(s):  
Florian Arendt ◽  
Nina Steindl ◽  
Peter Vitouch
Keyword(s):  
Social Cognition ◽  
Laboratory Experiment ◽  
Social Interactions ◽  
Social Perception ◽  
Skin Color ◽  
Human Face ◽  
Dark Skin ◽  
The Media ◽  
Facial Threat

The human face is central to social interactions and therefore of primary importance in social perception. Two recent discoveries have contributed to a more thorough understanding of the role of news stereotypes in the perception of facial threat: First, social-cognition research has revealed that automatically activated stereotypes influence the perception of facial threat. Individuals holding hostile stereotypes toward dark-skinned outgroup members perceive ambiguous dark-skinned faces as more hostile than similar light-skinned faces. Second, media-stereotyping research has found that the media can influence individuals’ automatically activated stereotypes. Combining these two findings, it was hypothesized that reading tabloid articles about crimes committed by dark-skinned offenders would increase the perceived facial threat of meeting dark-skinned strangers in a subsequent situation. This hypothesis was tested in a laboratory experiment. Participants read crime articles where cues indicating (dark) skin color were mentioned or not. The results showed that reading about dark-skinned criminals increases the perceived facial threat of dark-skinned strangers compared with light-skinned strangers.

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