White adipose tissue: Distribution, molecular insights of impaired expandability, and its implication in fatty liver disease
Biochim Biophys Acta Mol Basis Dis. 2023 Aug 21:166853. doi: 10.1016/j.bbadis.2023.166853. Online ahead of print.ABSTRACTWe are far behind the 2025 World Health Organization (WHO) goal of a zero increase in obesity. Close to 360 million people in Latin America and the Caribbean are overweight, with the highest rates observed in the Bahamas, Mexico, and Chile. To achieve relevant progress against the obesity epidemic, scientific research is essential to establish uniform practices in the study of obesity pathophysiology (using pre-clinical and clinical models) that ensure accuracy, reproducibility, and transcendent outcomes...
Source: Biochimica et Biophysica Acta - August 23, 2023 Category: Biochemistry Authors: Griselda Rabad án-Chávez Roc ío I Díaz de la Garza Daniel A Jacobo-Vel ázquez Source Type: research
White adipose tissue: Distribution, molecular insights of impaired expandability, and its implication in fatty liver disease
Biochim Biophys Acta Mol Basis Dis. 2023 Aug 21:166853. doi: 10.1016/j.bbadis.2023.166853. Online ahead of print.ABSTRACTWe are far behind the 2025 World Health Organization (WHO) goal of a zero increase in obesity. Close to 360 million people in Latin America and the Caribbean are overweight, with the highest rates observed in the Bahamas, Mexico, and Chile. To achieve relevant progress against the obesity epidemic, scientific research is essential to establish uniform practices in the study of obesity pathophysiology (using pre-clinical and clinical models) that ensure accuracy, reproducibility, and transcendent outcomes...
Source: Biochimica et Biophysica Acta - August 23, 2023 Category: Biochemistry Authors: Griselda Rabad án-Chávez Roc ío I Díaz de la Garza Daniel A Jacobo-Vel ázquez Source Type: research
Out to sea: ocean currents and patterns of asymmetric gene flow in an intertidal fish species
Passive dispersal via wind or ocean currents can drive asymmetric gene flow, which influences patterns of genetic variation and the capacity of populations to evolve in response to environmental change. The mangrove rivulus fish (Kryptolebias marmoratus), hereafter “rivulus,” is an intertidal fish species restricted to the highly fragmented New World mangrove forests of Central America, the Caribbean, the Bahamas, and Florida. Mangrove patches are biological islands with dramatic differences in both abiotic and biotic conditions compared to adjacent habitat. Over 1,000 individual rivulus across 17 populations throughou...
Source: Frontiers in Genetics - June 28, 2023 Category: Genetics & Stem Cells Source Type: research
Historical DNA from a rediscovered nineteenth-century paratype reveals genetic continuity of a Bahamian hutia ( < em > Geocapromys ingrahami < /em > ) population
Biol Lett. 2023 Apr;19(4):20220566. doi: 10.1098/rsbl.2022.0566. Epub 2023 Apr 26.ABSTRACTPast and ongoing human activities have shaped the geographical ranges and diversity of species. New genomic techniques applied to degraded samples, such as those from natural history collections, can uncover the complex evolutionary consequences of human pressures and generate baselines for interpreting magnitudes of species loss or persistence relevant to conservation. Here we integrate mitogenomic data with historical records from a recently rediscovered Bahamian hutia (Geocapromys ingrahami; (FMP Z02816)) specimen at the Fairbanks ...
Source: Biology Letters - May 1, 2023 Category: Biology Authors: Michelle J LeFebvre Alexis M Mychajliw George B Harris Jessica A Oswald Source Type: research
Historical DNA from a rediscovered nineteenth-century paratype reveals genetic continuity of a Bahamian hutia ( < em > Geocapromys ingrahami < /em > ) population
Biol Lett. 2023 Apr;19(4):20220566. doi: 10.1098/rsbl.2022.0566. Epub 2023 Apr 26.ABSTRACTPast and ongoing human activities have shaped the geographical ranges and diversity of species. New genomic techniques applied to degraded samples, such as those from natural history collections, can uncover the complex evolutionary consequences of human pressures and generate baselines for interpreting magnitudes of species loss or persistence relevant to conservation. Here we integrate mitogenomic data with historical records from a recently rediscovered Bahamian hutia (Geocapromys ingrahami; (FMP Z02816)) specimen at the Fairbanks ...
Source: Biology Letters - May 1, 2023 Category: Biology Authors: Michelle J LeFebvre Alexis M Mychajliw George B Harris Jessica A Oswald Source Type: research
Historical DNA from a rediscovered nineteenth-century paratype reveals genetic continuity of a Bahamian hutia ( < em > Geocapromys ingrahami < /em > ) population
Biol Lett. 2023 Apr;19(4):20220566. doi: 10.1098/rsbl.2022.0566. Epub 2023 Apr 26.ABSTRACTPast and ongoing human activities have shaped the geographical ranges and diversity of species. New genomic techniques applied to degraded samples, such as those from natural history collections, can uncover the complex evolutionary consequences of human pressures and generate baselines for interpreting magnitudes of species loss or persistence relevant to conservation. Here we integrate mitogenomic data with historical records from a recently rediscovered Bahamian hutia (Geocapromys ingrahami; (FMP Z02816)) specimen at the Fairbanks ...
Source: Biology Letters - May 1, 2023 Category: Biology Authors: Michelle J LeFebvre Alexis M Mychajliw George B Harris Jessica A Oswald Source Type: research
Predicting Adolescent Intervention Non-responsiveness for Precision HIV Prevention Using Machine Learning
AbstractInterventions to teach protective behaviors may be differentially effective within an adolescent population. Identifying the characteristics of youth who are less likely to respond to an intervention can guide program modifications to improve its effectiveness. Using comprehensive longitudinal data on adolescent risk behaviors, perceptions, sensation-seeking, peer and family influence, and neighborhood risk factors from 2564 grade 10 –12 students in The Bahamas, this study employs machine learning approaches (support vector machines, logistic regression, decision tree, and random forest) to identify important pre...
Source: AIDS and Behavior - April 26, 2023 Category: Infectious Diseases Source Type: research
Mortality and disability-adjusted life years in motorcyclists in Latin America and the Caribbean during the first decade of action for road safetyMortalidad y a ños de vida ajustados por discapacidad de los motociclistas en América Latina y el Caribe en la primera década de seguridad vial
CONCLUSIONS: The data underscore the importance of developing surveillance actions aimed at preventing motorcycle accidents, since the observed declining rates are still insufficient to address the morbidity and mortality associated with road accidents as a public health problem.PMID:37066130 | PMC:PMC10100995 | DOI:10.26633/RPSP.2023.68 (Source: Pan American Journal of Public Health)
Source: Pan American Journal of Public Health - April 17, 2023 Category: International Medicine & Public Health Authors: Mariz ângela Lissandra de Oliveira Santiago Renata Adele de Lima Nunes Fernando Virg ílio Albuquerque de Oliveira Mabell Kallyne Melo Beserra Francisco Thiago Carneiro Sena Loyane Ellen Silva Gomes Douglas de Ara újo Costa Raimunda Hermelinda Maia Mace Source Type: research
The Difficulty of Predicting Evolutionary Change in Response to Novel Ecological Interactions: A Field Experiment with < em > Anolis < /em > Lizards
Am Nat. 2023 Apr;201(4):537-556. doi: 10.1086/723209. Epub 2023 Feb 17.ABSTRACTAbstractDetermining whether and how evolution is predictable is an important goal, particularly as anthropogenic disturbances lead to novel species interactions that could modify selective pressures. Here, we use a multigeneration field experiment with brown anole lizards (Anolis sagrei) to test hypotheses about the predictability of evolution. We manipulated the presence/absence of predators and competitors of A. sagrei across 16 islands in the Bahamas that had preexisting brown anole populations. Before the experiment and again after roughly f...
Source: The American Naturalist - March 23, 2023 Category: Biology Authors: Timothy J Thurman Todd M Palmer Jason J Kolbe Arash M Askary Kiyoko M Gotanda Oriol Lapiedra Tyler R Kartzinel Naomi Man In't Veld Liam J Revell Johanna E Wegener Thomas W Schoener David A Spiller Jonathan B Losos Robert M Pringle Rowan D H Barrett Source Type: research
The Difficulty of Predicting Evolutionary Change in Response to Novel Ecological Interactions: A Field Experiment with < em > Anolis < /em > Lizards
Am Nat. 2023 Apr;201(4):537-556. doi: 10.1086/723209. Epub 2023 Feb 17.ABSTRACTAbstractDetermining whether and how evolution is predictable is an important goal, particularly as anthropogenic disturbances lead to novel species interactions that could modify selective pressures. Here, we use a multigeneration field experiment with brown anole lizards (Anolis sagrei) to test hypotheses about the predictability of evolution. We manipulated the presence/absence of predators and competitors of A. sagrei across 16 islands in the Bahamas that had preexisting brown anole populations. Before the experiment and again after roughly f...
Source: The American Naturalist - March 23, 2023 Category: Biology Authors: Timothy J Thurman Todd M Palmer Jason J Kolbe Arash M Askary Kiyoko M Gotanda Oriol Lapiedra Tyler R Kartzinel Naomi Man In't Veld Liam J Revell Johanna E Wegener Thomas W Schoener David A Spiller Jonathan B Losos Robert M Pringle Rowan D H Barrett Source Type: research
Grooming Time Predicts Survival: American Kestrels, < em > Falco sparverius < /em > , on a Subtropical Island
Am Nat. 2023 Apr;201(4):603-609. doi: 10.1086/723412. Epub 2023 Feb 15.ABSTRACTAbstractAnimals have evolved a variety of adaptations to care for their body surfaces, such as grooming behavior, which keeps the integument clean, parasite-free, and properly arranged. Despite extensive research on the grooming of mammals, birds, and arthropods, the survival value of grooming has never been directly measured in natural populations. We monitored grooming and survival in a population of marked American kestrels (Falco sparverius) on San Salvador Island, Bahamas. We found a strong association between time spent grooming and surviv...
Source: The American Naturalist - March 23, 2023 Category: Biology Authors: Sarah E Bush Dale H Clayton Source Type: research
Grooming Time Predicts Survival: American Kestrels, < em > Falco sparverius < /em > , on a Subtropical Island
Am Nat. 2023 Apr;201(4):603-609. doi: 10.1086/723412. Epub 2023 Feb 15.ABSTRACTAbstractAnimals have evolved a variety of adaptations to care for their body surfaces, such as grooming behavior, which keeps the integument clean, parasite-free, and properly arranged. Despite extensive research on the grooming of mammals, birds, and arthropods, the survival value of grooming has never been directly measured in natural populations. We monitored grooming and survival in a population of marked American kestrels (Falco sparverius) on San Salvador Island, Bahamas. We found a strong association between time spent grooming and surviv...
Source: The American Naturalist - March 23, 2023 Category: Biology Authors: Sarah E Bush Dale H Clayton Source Type: research
