Individuals whose ancestral origins are in the continents of the Americas.
Individuals whose ancestral origins are in the continent of Europe.
Individuals whose ancestral origins are in the continent of Africa.
Individuals whose ancestral origins are in the southeastern and eastern areas of the Asian continent.
Individuals whose ancestral origins are in the islands of the central and South Pacific, including Micronesia, Melanesia, Polynesia, and traditionally Australasia.
I'm sorry for any confusion, but 'Europe' is a geographical continent and not a medical term; therefore, it doesn't have a medical definition.
The collective designation of three organizations with common membership: the European Economic Community (Common Market), the European Coal and Steel Community, and the European Atomic Energy Community (Euratom). It was known as the European Community until 1994. It is primarily an economic union with the principal objectives of free movement of goods, capital, and labor. Professional services, social, medical and paramedical, are subsumed under labor. The constituent countries are Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden, and the United Kingdom. (The World Almanac and Book of Facts 1997, p842)
Genealogy is the study of family history and descent, while heraldry refers to the practice of designing, displaying, and studying coats of arms, which often provide historical information about families or individuals.
A single nucleotide variation in a genetic sequence that occurs at appreciable frequency in the population.
The discipline studying genetic composition of populations and effects of factors such as GENETIC SELECTION, population size, MUTATION, migration, and GENETIC DRIFT on the frequencies of various GENOTYPES and PHENOTYPES using a variety of GENETIC TECHNIQUES.
An analysis comparing the allele frequencies of all available (or a whole GENOME representative set of) polymorphic markers in unrelated patients with a specific symptom or disease condition, and those of healthy controls to identify markers associated with a specific disease or condition.
The genetic constitution of the individual, comprising the ALLELES present at each GENETIC LOCUS.
The genetic constitution of individuals with respect to one member of a pair of allelic genes, or sets of genes that are closely linked and tend to be inherited together such as those of the MAJOR HISTOCOMPATIBILITY COMPLEX.
The proportion of one particular in the total of all ALLELES for one genetic locus in a breeding POPULATION.
Genotypic differences observed among individuals in a population.
The total genetic information possessed by the reproductive members of a POPULATION of sexually reproducing organisms.
A latent susceptibility to disease at the genetic level, which may be activated under certain conditions.
Persons living in the United States having origins in any of the black groups of Africa.
Individual members of South American ethnic groups with historic ancestral origins in Asia.
The relationships of groups of organisms as reflected by their genetic makeup.
Specific regions that are mapped within a GENOME. Genetic loci are usually identified with a shorthand notation that indicates the chromosome number and the position of a specific band along the P or Q arm of the chromosome where they are found. For example the locus 6p21 is found within band 21 of the P-arm of CHROMOSOME 6. Many well known genetic loci are also known by common names that are associated with a genetic function or HEREDITARY DISEASE.
Nonrandom association of linked genes. This is the tendency of the alleles of two separate but already linked loci to be found together more frequently than would be expected by chance alone.
A group of people with a common cultural heritage that sets them apart from others in a variety of social relationships.
Variant forms of the same gene, occupying the same locus on homologous CHROMOSOMES, and governing the variants in production of the same gene product.
An independent state in the Lesser Antilles in the West Indies, north of Venezuela, comprising the islands of Trinidad and Tobago. Its capital is Port of Spain. Both islands were discovered by Columbus in 1498. The Spanish, English, Dutch, and French figure in their history over four centuries. Trinidad and Tobago united in 1898 and were made part of the British colony of Trinidad and Tobago in 1899. The colony became an independent state in 1962. Trinidad was so named by Columbus either because he arrived on Trinity Sunday or because three mountain peaks suggested the Holy Trinity. Tobago was given the name by Columbus from the Haitian tambaku, pipe, from the natives' habit of smoking tobacco leaves. (Webster's New Geographical Dictionary, 1988, p1228, 1216 & Room, Brewer's Dictionary of Names, 1992, p555, 547)
The complete genetic complement contained in the DNA of a set of CHROMOSOMES in a HUMAN. The length of the human genome is about 3 billion base pairs.
A phenotypically recognizable genetic trait which can be used to identify a genetic locus, a linkage group, or a recombination event.
Mathematical procedure that transforms a number of possibly correlated variables into a smaller number of uncorrelated variables called principal components.

Heart rate and subsequent blood pressure in young adults: the CARDIA study. (1/13036)

The objective of the present study was to examine the hypothesis that baseline heart rate (HR) predicts subsequent blood pressure (BP) independently of baseline BP. In the multicenter longitudinal Coronary Artery Risk Development in Young Adults study of black and white men and women initially aged 18 to 30 years, we studied 4762 participants who were not current users of antihypertensive drugs and had no history of heart problems at the baseline examination (1985-1986). In each race-sex subgroup, we estimated the effect of baseline HR on BP 2, 5, 7, and 10 years later by use of repeated measures regression analysis, adjusting for baseline BP, age, education, body fatness, physical fitness, fasting insulin, parental hypertension, cigarette smoking, alcohol consumption, oral contraceptive use, and change of body mass index from baseline. The association between baseline HR and subsequent systolic BP (SBP) was explained by multivariable adjustment. However, HR was an independent predictor of subsequent diastolic BP (DBP) regardless of initial BP and other confounders in white men, white women, and black men (0.7 mm Hg increase per 10 bpm). We incorporated the part of the association that was already present at baseline by not adjusting for baseline DBP: the mean increase in subsequent DBP was 1.3 mm Hg per 10 bpm in white men, white women, and black men. A high HR may be considered a risk factor for subsequent high DBP in young persons.  (+info)

Obstetric and neonatal outcome following chronic hypertension in pregnancy among different ethnic groups. (2/13036)

We retrospectively studied pre-eclampsia rate and obstetric outcome in a cohort of 436 pregnancies amongst 318 women of different ethnic backgrounds attending an antenatal hypertension clinic from 1980-1997, identifying 152 women (213 pregnancies) with chronic essential hypertension. The ethnic breakdown was: White, 64 (30.0%) pregnancies in 48 (31.5%) women; Black/Afro-Caribbean, 79 (37.1%) pregnancies in 56 (36.8%) women; and Indo-Asians, 70 (32.3%) pregnancies in 48 (31.6%) women. The prevalences of pre-eclampsia in White, Black and Indo-Asian women were 17.2%, 12.7% and 18.6%, respectively (p = 0.58). Pregnancies of Indo-Asian women were of shorter gestation, and babies in this group also had lower birth weight and ponderal index compared to those of White and Black women (all p < 0.05). The proportions of overall perinatal mortality were 1.6% for Whites (1/64), 3.8% for Blacks (3/79) and 10.0% for Indo-Asians (7/70), suggesting increased risk in the Indo-Asian group. Indo-Asian women with chronic essential hypertension need careful antenatal care and observation during pregnancy.  (+info)

Associations of anti-beta2-glycoprotein I autoantibodies with HLA class II alleles in three ethnic groups. (3/13036)

OBJECTIVE: To determine any HLA associations with anti-beta2-glycoprotein I (anti-beta2GPI) antibodies in a large, retrospectively studied, multiethnic group of 262 patients with primary antiphospholipid antibody syndrome (APS), systemic lupus erythematosus (SLE), or another connective tissue disease. METHODS: Anti-beta2GPI antibodies were detected in sera using an enzyme-linked immunosorbent assay. HLA class II alleles (DRB1, DQA1, and DQB1) were determined by DNA oligotyping. RESULTS: The HLA-DQB1*0302 (DQ8) allele, typically carried on HLA-DR4 haplotypes, was associated with anti-beta2GPI when compared with both anti-beta2GPI-negative SLE patients and ethnically matched normal controls, especially in Mexican Americans and, to a lesser extent, in whites. Similarly, when ethnic groups were combined, HLA-DQB1*0302, as well as HLA-DQB1*03 alleles overall (DQB1*0301, *0302, and *0303), were strongly correlated with anti-beta2GPI antibodies. The HLA-DR6 (DR13) haplotype DRB1*1302; DQB1*0604/5 was also significantly increased, primarily in blacks. HLA-DR7 was not significantly increased in any of these 3 ethnic groups, and HLA-DR53 (DRB4*0101) was increased in Mexican Americans only. CONCLUSION: Certain HLA class II haplotypes genetically influence the expression of antibodies to beta2GPI, an important autoimmune response in the APS, but there are variations in HLA associations among different ethnic groups.  (+info)

Prevalence of hepatitis B surface antigen and antibody in white and black patients with diabetes mellitus. (4/13036)

The prevalence of hepatitis B surface antigen (HBSAg) and antibody (anti-HBS) was determined in 531 white and 519 black diabetic outpatients and in appropriate white and black control populations. There was no difference between the prevalence of either HBSAg or anti-HBS in either the white or black diabetics and that in the white and black controls. These findings make it unlikely that the vast majority of patients with diabetes mellitus have either an increased susceptibility to infection by the hepatitis B virus or an impaired ability to clear the virus once they are infected.  (+info)

Biochemical indices of osteomalacia in pregnant Asian immigrants in Britain. (5/13036)

Serum calcium, phosphate and alkaline phosphatase, and urinary calcium excretion were examined during the second trimester of uncomplicated normal pregnancy in Asian immigrants to Britain and in local Caucasians. The mean serum calcium was significantly lower in Asians than in Caucasians, and the mean serum alkaline phosphatase was significantly higher in Asians. The geometric mean of the urinary calcium excretion was highly significantly lower in Asians than in Caucasians. The variances of the serum calcium, serum alkaline phosphatase, and urine calcium excretion did not differ significantly in the two populations. This indicates that there is a shift in values of immigrant Asians as a group compared with Caucasians. A comparison with figures obtained on normal nonpregnant persons of both suggests that the shift is not an inherent feature of the Asian population.  (+info)

Racial differences in the outcome of left ventricular dysfunction. (6/13036)

BACKGROUND: Population-based studies have found that black patients with congestive heart failure have a higher mortality rate than whites with the same condition. This finding has been attributed to differences in the severity, causes, and management of heart failure, the prevalence of coexisting conditions, and socioeconomic factors. Although these factors probably account for some of the higher mortality due to congestive heart failure among blacks, we hypothesized that racial differences in the natural history of left ventricular dysfunction might also have a role. METHODS: Using data from the Studies of Left Ventricular Dysfunction (SOLVD) prevention and treatment trials, in which all patients received standardized therapy and follow-up, we conducted a retrospective analysis of the outcomes of asymptomatic and symptomatic left ventricular systolic dysfunction among black and white participants. The mean (+/-SD) follow-up was 34.2+/-14.0 months in the prevention trial and 32.3+/-14.8 months in the treatment trial among the black and white participants. RESULTS: The overall mortality rates in the prevention trial were 8.1 per 100 person-years for blacks and 5.1 per 100 person years for whites. In the treatment trial, the rates were 16.7 per 100 person-years and 13.4 per 100 person-years, respectively. After adjustment for age, coexisting conditions, severity and causes of heart failure, and use of medications, blacks had a higher risk of death from all causes in both the SOLVD prevention trial (relative risk, 1.36; 95 percent confidence interval, 1.06 to 1.74; P=0.02) and the treatment trial (relative risk, 1.25; 95 percent confidence interval, 1.04 to 1.50; P=0.02). In both trials blacks were also at higher risk for death due to pump failure and for the combined end point of death from any cause or hospitalization for heart failure, our two predefined indicators of the progression of left ventricular systolic dysfunction. CONCLUSIONS: Blacks with mild-to-moderate left ventricular systolic dysfunction appear to be at higher risk for progression of heart failure and death from any cause than similarly treated whites. These results suggest that there may be racial differences in the outcome of asymptomatic and symptomatic left ventricular systolic dysfunction.  (+info)

The effect of race and sex on physicians' recommendations for cardiac catheterization. (7/13036)

BACKGROUND: Epidemiologic studies have reported differences in the use of cardiovascular procedures according to the race and sex of the patient. Whether the differences stem from differences in the recommendations of physicians remains uncertain. METHODS: We developed a computerized survey instrument to assess physicians' recommendations for managing chest pain. Actors portrayed patients with particular characteristics in scripted interviews about their symptoms. A total of 720 physicians at two national meetings of organizations of primary care physicians participated in the survey. Each physician viewed a recorded interview and was given other data about a hypothetical patient. He or she then made recommendations about that patient's care. We used multivariate logistic-regression analysis to assess the effects of the race and sex of the patients on treatment recommendations, while controlling for the physicians' assessment of the probability of coronary artery disease as well as for the age of the patient, the level of coronary risk, the type of chest pain, and the results of an exercise stress test. RESULTS: The physicians' mean (+/-SD) estimates of the probability of coronary artery disease were lower for women (probability, 64.1+/-19.3 percent, vs. 69.2+/-18.2 percent for men; P<0.001), younger patients (63.8+/-19.5 percent for patients who were 55 years old, vs. 69.5+/-17.9 percent for patients who were 70 years old; P<0.001), and patients with nonanginal pain (58.3+/-19.0 percent, vs. 64.4+/-18.3 percent for patients with possible angina and 77.1+/-14.0 percent for those with definite angina; P=0.001). Logistic-regression analysis indicated that women (odds ratio, 0.60; 95 percent confidence interval, 0.4 to 0.9; P=0.02) and blacks (odds ratio, 0.60; 95 percent confidence interval, 0.4 to 0.9; P=0.02) were less likely to be referred for cardiac catheterization than men and whites, respectively. Analysis of race-sex interactions showed that black women were significantly less likely to be referred for catheterization than white men (odds ratio, 0.4; 95 percent confidence interval, 0.2 to 0.7; P=0.004). CONCLUSIONS: Our findings suggest that the race and sex of a patient independently influence how physicians manage chest pain.  (+info)

Genetic polymorphism and interethnic variability of plasma paroxonase activity. (8/13036)

A method for determining plasma paroxonase activity using an auto-analyser is described. Frequency distributions for British and Indian subjects show bimodality. A study of 40 British families confirms the presence of a genetic polymorphism with regard to plasma paroxonase activity. Two phenotypes can be defined, controlled by two alleles at one autosomal locus. The frequency of the low activity phenotype is less in the Indian population than in the British population. Malay, Chinese, and African subjects fail to show obvious bimodality.  (+info)

The term "American Native Continental Ancestry Group" is not a standard medical term, but it generally refers to individuals who have ancestral origins in the indigenous populations of North, Central, or South America. This group includes people who identify as American Indian, Alaska Native, Native Hawaiian, and other Pacific Islander.

It's important to note that this term is often used in genetic research to categorize participants based on their self-reported ancestry or genetic markers associated with certain populations. However, the use of such categories can be controversial because they oversimplify the complex and diverse histories of indigenous peoples and may perpetuate harmful stereotypes or misunderstandings.

Therefore, it is generally recommended to use more specific and culturally sensitive terms when referring to individuals' ancestry or cultural backgrounds.

The term "European Continental Ancestry Group" is a medical/ethnic classification that refers to individuals who trace their genetic ancestry to the continent of Europe. This group includes people from various ethnic backgrounds and nationalities, such as Northern, Southern, Eastern, and Western European descent. It is often used in research and medical settings for population studies or to identify genetic patterns and predispositions to certain diseases that may be more common in specific ancestral groups. However, it's important to note that this classification can oversimplify the complex genetic diversity within and between populations, and should be used with caution.

The term "African Continental Ancestry Group" is a racial category used in the field of genetics and population health to describe individuals who have ancestral origins in the African continent. This group includes people from diverse ethnic backgrounds, cultures, and languages across the African continent. It's important to note that this term is used for genetic and epidemiological research purposes and should not be used to make assumptions about an individual's personal identity, culture, or experiences.

It's also worth noting that there is significant genetic diversity within Africa, and using a single category to describe all individuals with African ancestry can oversimplify this diversity. Therefore, it's more accurate and informative to specify the particular population or region of African ancestry when discussing genetic research or health outcomes.

The term "Asian Continental Ancestry Group" is a medical/ethnic classification used to describe a person's genetic background and ancestry. According to this categorization, individuals with origins in the Asian continent are grouped together. This includes populations from regions such as East Asia (e.g., China, Japan, Korea), South Asia (e.g., India, Pakistan, Bangladesh), Southeast Asia (e.g., Philippines, Indonesia, Thailand), and Central Asia (e.g., Kazakhstan, Uzbekistan, Tajikistan). It is important to note that this broad categorization may not fully capture the genetic diversity within these regions or accurately reflect an individual's specific ancestral origins.

I'm sorry for any confusion, but "Oceanic Ancestry Group" is not a standard medical term or classification. It seems to be a general term that refers to people who have ancestral origins in the Oceanic region, which includes countries like Australia, New Zealand, and various islands in the Pacific Ocean.

In genetic or genealogical contexts, it might refer to a group of populations sharing certain genetic characteristics due to their geographical and historical connections. However, it's important to note that such classifications can be oversimplified and may not accurately reflect the complex genetic histories and cultural identities of individuals.

If you're looking for a medical term related to ancestry or genetics, you might be thinking of "racial" or "ethnic" categories, which are sometimes used in medical research or clinical settings to describe patterns of disease risk or treatment response. However, these categories are also flawed and can oversimplify the genetic and cultural diversity within and between populations. It's generally more useful and accurate to consider each individual's unique genetic and environmental factors when considering their health and medical needs.

I'm sorry for any confusion, but the term "Europe" is a geographical and political designation, rather than a medical one. It refers to the continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, and the Mediterranean Sea to the south. Europe is made up of approximately 50 countries, depending on how one defines a "country."

If you have any questions related to medical terminology or health-related topics, I'd be happy to help answer them!

The European Union (EU) is not a medical term or organization, but rather a political and economic union of 27 European countries. It is primarily involved in matters related to policy, law, and trade, and does not have a direct role in the provision or regulation of healthcare services, except in certain specific areas such as pharmaceutical regulations and cross-border healthcare directives.

Therefore, there is no medical definition for "European Union."

I'm sorry for any confusion, but it seems there might be a misunderstanding in your question. Genealogy and heraldry are two distinct subjects, each with its own definition. I will provide you with their separate definitions:

1. Genealogy - This is the study of family history, lineages, and descent. It involves researching ancestral origins, relationships, and historical records to construct a family tree or pedigree. Genealogists use various resources like birth, marriage, and death certificates; census records; church records; and DNA testing to trace the connections between individuals and families over generations.

2. Heraldry - This is the study of armorial bearings, also known as coats of arms. Heraldry involves the design, description, and use of these symbols, which were historically used by nobility, knights, and other privileged classes to identify themselves in battle, on seals, and in civic life. The heraldic elements often include shields, helmets, crests, mottoes, and other insignia that convey information about the bearer's ancestry, rank, occupation, or achievements.

While genealogy and heraldry can sometimes intersect (e.g., when studying the historical records of noble families with coats of arms), they are not inherently related as subjects within the medical field.

Single Nucleotide Polymorphism (SNP) is a type of genetic variation that occurs when a single nucleotide (A, T, C, or G) in the DNA sequence is altered. This alteration must occur in at least 1% of the population to be considered a SNP. These variations can help explain why some people are more susceptible to certain diseases than others and can also influence how an individual responds to certain medications. SNPs can serve as biological markers, helping scientists locate genes that are associated with disease. They can also provide information about an individual's ancestry and ethnic background.

Population Genetics is a subfield of genetics that deals with the genetic composition of populations and how this composition changes over time. It involves the study of the frequency and distribution of genes and genetic variations in populations, as well as the evolutionary forces that contribute to these patterns, such as mutation, gene flow, genetic drift, and natural selection.

Population genetics can provide insights into a wide range of topics, including the history and relationships between populations, the genetic basis of diseases and other traits, and the potential impacts of environmental changes on genetic diversity. This field is important for understanding evolutionary processes at the population level and has applications in areas such as conservation biology, medical genetics, and forensic science.

A Genome-Wide Association Study (GWAS) is an analytical approach used in genetic research to identify associations between genetic variants, typically Single Nucleotide Polymorphisms (SNPs), and specific traits or diseases across the entire genome. This method involves scanning the genomes of many individuals, usually thousands, to find genetic markers that occur more frequently in people with a particular disease or trait than in those without it.

The goal of a GWAS is to identify genetic loci (positions on chromosomes) associated with a trait or disease, which can help researchers understand the underlying genetic architecture and biological mechanisms contributing to the condition. It's important to note that while GWAS can identify associations between genetic variants and traits/diseases, these studies do not necessarily prove causation. Further functional validation studies are often required to confirm the role of identified genetic variants in the development or progression of a trait or disease.

Genotype, in genetics, refers to the complete heritable genetic makeup of an individual organism, including all of its genes. It is the set of instructions contained in an organism's DNA for the development and function of that organism. The genotype is the basis for an individual's inherited traits, and it can be contrasted with an individual's phenotype, which refers to the observable physical or biochemical characteristics of an organism that result from the expression of its genes in combination with environmental influences.

It is important to note that an individual's genotype is not necessarily identical to their genetic sequence. Some genes have multiple forms called alleles, and an individual may inherit different alleles for a given gene from each parent. The combination of alleles that an individual inherits for a particular gene is known as their genotype for that gene.

Understanding an individual's genotype can provide important information about their susceptibility to certain diseases, their response to drugs and other treatments, and their risk of passing on inherited genetic disorders to their offspring.

A haplotype is a group of genes or DNA sequences that are inherited together from a single parent. It refers to a combination of alleles (variant forms of a gene) that are located on the same chromosome and are usually transmitted as a unit. Haplotypes can be useful in tracing genetic ancestry, understanding the genetic basis of diseases, and developing personalized medical treatments.

In population genetics, haplotypes are often used to study patterns of genetic variation within and between populations. By comparing haplotype frequencies across populations, researchers can infer historical events such as migrations, population expansions, and bottlenecks. Additionally, haplotypes can provide information about the evolutionary history of genes and genomic regions.

In clinical genetics, haplotypes can be used to identify genetic risk factors for diseases or to predict an individual's response to certain medications. For example, specific haplotypes in the HLA gene region have been associated with increased susceptibility to certain autoimmune diseases, while other haplotypes in the CYP450 gene family can affect how individuals metabolize drugs.

Overall, haplotypes provide a powerful tool for understanding the genetic basis of complex traits and diseases, as well as for developing personalized medical treatments based on an individual's genetic makeup.

Gene frequency, also known as allele frequency, is a measure in population genetics that reflects the proportion of a particular gene or allele (variant of a gene) in a given population. It is calculated as the number of copies of a specific allele divided by the total number of all alleles at that genetic locus in the population.

For example, if we consider a gene with two possible alleles, A and a, the gene frequency of allele A (denoted as p) can be calculated as follows:

p = (number of copies of allele A) / (total number of all alleles at that locus)

Similarly, the gene frequency of allele a (denoted as q) would be:

q = (number of copies of allele a) / (total number of all alleles at that locus)

Since there are only two possible alleles for this gene in this example, p + q = 1. These frequencies can help researchers understand genetic diversity and evolutionary processes within populations.

Genetic variation refers to the differences in DNA sequences among individuals and populations. These variations can result from mutations, genetic recombination, or gene flow between populations. Genetic variation is essential for evolution by providing the raw material upon which natural selection acts. It can occur within a single gene, between different genes, or at larger scales, such as differences in the number of chromosomes or entire sets of chromosomes. The study of genetic variation is crucial in understanding the genetic basis of diseases and traits, as well as the evolutionary history and relationships among species.

A gene pool refers to the total sum of genes contained within a population of interbreeding individuals of a species. It includes all the variations of genes, or alleles, that exist in that population. The concept of a gene pool is important in understanding genetic diversity and how traits are passed down from one generation to the next.

The size and diversity of a gene pool can have significant implications for the long-term survival and adaptability of a species. A larger and more diverse gene pool can provide a species with greater resistance to diseases, environmental changes, and other threats, as there is a wider variety of traits and genetic combinations available. On the other hand, a smaller or less diverse gene pool may make a species more susceptible to genetic disorders, reduced fitness, and extinction.

Geneticists and population biologists often study gene pools to understand the evolutionary history and dynamics of populations, as well as to inform conservation efforts for endangered species.

Genetic predisposition to disease refers to an increased susceptibility or vulnerability to develop a particular illness or condition due to inheriting specific genetic variations or mutations from one's parents. These genetic factors can make it more likely for an individual to develop a certain disease, but it does not guarantee that the person will definitely get the disease. Environmental factors, lifestyle choices, and interactions between genes also play crucial roles in determining if a genetically predisposed person will actually develop the disease. It is essential to understand that having a genetic predisposition only implies a higher risk, not an inevitable outcome.

African Americans are defined as individuals who have ancestry from any of the black racial groups of Africa. This term is often used to describe people living in the United States who have total or partial descent from enslaved African peoples. The term does not refer to a single ethnicity but is a broad term that includes various ethnic groups with diverse cultures, languages, and traditions. It's important to note that some individuals may prefer to identify as Black or of African descent rather than African American, depending on their personal identity and background.

I believe you are asking for a description or explanation of the indigenous peoples of South America, rather than a "medical definition." A medical definition would typically apply to a condition or disease. Here is some information about the indigenous peoples of South America:

The indigenous peoples of South America are the original inhabitants of the continent and its islands, who lived there before the European colonization. They include a wide variety of ethnic groups, languages, and cultures, with distinct histories and traditions. Many indigenous communities in South America have faced significant challenges, including displacement from their lands, marginalization, and discrimination.

According to estimates by the United Nations, there are approximately 45 million indigenous people in Latin America, of which about 30 million live in South America. They represent around 7% of the total population of South America. Indigenous peoples in South America can be found in all countries, with the largest populations in Bolivia (62%), Guatemala (41%), and Peru (25%).

Indigenous peoples in South America have a rich cultural heritage, including unique languages, arts, and spiritual practices. Many of these cultures are under threat due to globalization, urbanization, and the loss of traditional lands and resources. In recent years, there has been increased recognition of the rights of indigenous peoples in international law, including the right to self-determination, cultural heritage, and free, prior, and informed consent for projects that affect their territories. However, significant challenges remain, and many indigenous communities continue to face violence, discrimination, and poverty.

Phylogeny is the evolutionary history and relationship among biological entities, such as species or genes, based on their shared characteristics. In other words, it refers to the branching pattern of evolution that shows how various organisms have descended from a common ancestor over time. Phylogenetic analysis involves constructing a tree-like diagram called a phylogenetic tree, which depicts the inferred evolutionary relationships among organisms or genes based on molecular sequence data or other types of characters. This information is crucial for understanding the diversity and distribution of life on Earth, as well as for studying the emergence and spread of diseases.

A genetic locus (plural: loci) is a specific location on a chromosome where a particular gene or DNA sequence is found. It is the precise position where a specific genetic element, such as a gene or marker, is located on a chromsomere. This location is defined in terms of its relationship to other genetic markers and features on the same chromosome. Genetic loci can be used in linkage and association studies to identify the inheritance patterns and potential relationships between genes and various traits or diseases.

Linkage disequilibrium (LD) is a term used in genetics that refers to the non-random association of alleles at different loci (genetic locations) on a chromosome. This means that certain combinations of genetic variants, or alleles, at different loci occur more frequently together in a population than would be expected by chance.

Linkage disequilibrium can arise due to various factors such as genetic drift, selection, mutation, and population structure. It is often used in the context of genetic mapping studies to identify regions of the genome that are associated with particular traits or diseases. High levels of LD in a region of the genome suggest that the loci within that region are in linkage, meaning they tend to be inherited together.

The degree of LD between two loci can be measured using various statistical methods, such as D' and r-squared. These measures provide information about the strength and direction of the association between alleles at different loci, which can help researchers identify causal genetic variants underlying complex traits or diseases.

An ethnic group is a category of people who identify with each other based on shared ancestry, language, culture, history, and/or physical characteristics. The concept of an ethnic group is often used in the social sciences to describe a population that shares a common identity and a sense of belonging to a larger community.

Ethnic groups can be distinguished from racial groups, which are categories of people who are defined by their physical characteristics, such as skin color, hair texture, and facial features. While race is a social construct based on physical differences, ethnicity is a cultural construct based on shared traditions, beliefs, and practices.

It's important to note that the concept of ethnic groups can be complex and fluid, as individuals may identify with multiple ethnic groups or switch their identification over time. Additionally, the boundaries between different ethnic groups can be blurred and contested, and the ways in which people define and categorize themselves and others can vary across cultures and historical periods.

An allele is a variant form of a gene that is located at a specific position on a specific chromosome. Alleles are alternative forms of the same gene that arise by mutation and are found at the same locus or position on homologous chromosomes.

Each person typically inherits two copies of each gene, one from each parent. If the two alleles are identical, a person is said to be homozygous for that trait. If the alleles are different, the person is heterozygous.

For example, the ABO blood group system has three alleles, A, B, and O, which determine a person's blood type. If a person inherits two A alleles, they will have type A blood; if they inherit one A and one B allele, they will have type AB blood; if they inherit two B alleles, they will have type B blood; and if they inherit two O alleles, they will have type O blood.

Alleles can also influence traits such as eye color, hair color, height, and other physical characteristics. Some alleles are dominant, meaning that only one copy of the allele is needed to express the trait, while others are recessive, meaning that two copies of the allele are needed to express the trait.

I'm sorry for any confusion, but "Trinidad and Tobago" is not a medical term or concept. It is the name of a country located in the southern Caribbean Sea, off the northeastern coast of Venezuela. The country is an archipelago, consisting of two main islands, Trinidad and Tobago, and numerous smaller islands.

If you have any questions related to medical terminology or health-related topics, I'd be happy to help!

A human genome is the complete set of genetic information contained within the 23 pairs of chromosomes found in the nucleus of most human cells. It includes all of the genes, which are segments of DNA that contain the instructions for making proteins, as well as non-coding regions of DNA that regulate gene expression and provide structural support to the chromosomes.

The human genome contains approximately 3 billion base pairs of DNA and is estimated to contain around 20,000-25,000 protein-coding genes. The sequencing of the human genome was completed in 2003 as part of the Human Genome Project, which has had a profound impact on our understanding of human biology, disease, and evolution.

Genetic markers are specific segments of DNA that are used in genetic mapping and genotyping to identify specific genetic locations, diseases, or traits. They can be composed of short tandem repeats (STRs), single nucleotide polymorphisms (SNPs), restriction fragment length polymorphisms (RFLPs), or variable number tandem repeats (VNTRs). These markers are useful in various fields such as genetic research, medical diagnostics, forensic science, and breeding programs. They can help to track inheritance patterns, identify genetic predispositions to diseases, and solve crimes by linking biological evidence to suspects or victims.

Principal Component Analysis (PCA) is not a medical term, but a statistical technique that is used in various fields including bioinformatics and medicine. It is a method used to identify patterns in high-dimensional data by reducing the dimensionality of the data while retaining most of the variation in the dataset.

In medical or biological research, PCA may be used to analyze large datasets such as gene expression data or medical imaging data. By applying PCA, researchers can identify the principal components, which are linear combinations of the original variables that explain the maximum amount of variance in the data. These principal components can then be used for further analysis, visualization, and interpretation of the data.

PCA is a widely used technique in data analysis and has applications in various fields such as genomics, proteomics, metabolomics, and medical imaging. It helps researchers to identify patterns and relationships in complex datasets, which can lead to new insights and discoveries in medical research.

Tag Archives: European Continental Ancestry Group. The phenotypic legacy of admixture between modern humans and Neandertals.. ... and candidate gene SNPs necessary to infer continental ancestry. Proportions of African and European ancestry were assessed ... A small number of candidate gene SNPs reveal continental ancestry in African Americans.. Posted on January 2, 2013. August 16, ... derived phenotypes in 28,000 adults of European ancestry. We discovered and replicated associations of […] ...
... making them the primary European ancestral group. French ancestry is high, due to white French fleeing Haiti after independence ... The Spanish Caribbean also has higher Canarian influence compared to continental Latin America, ... This mixture of European (especially Canarian), West African, and Taino is heavily reflected in the culture. The term is used ... Greenwood Publishing Group. p. 51. ISBN 978-1-56720-138-3. Archived from the original on 2022-04-07. Retrieved 2020-08-25. Luis ...
Ancestry data support the grouping of Kwadi-Khoe, Kxa, and Tuu languages, support the exclusion of Omotic languages from the ... Ancestry data yield insight into a deeper past than linguistic data can, while linguistic data provide clarity to ancestry data ... and relationships among ancestries and language groups. We compiled publicly available genome-wide genotype data on 5,966 ... The best evidence supports 21 ancestries that delineate genetic structure of present-day human populations. Independent of self ...
Adult, Alleles, Body Mass Index, European Continental Ancestry Group/genetics, Female, Genetic Association Studies, Genetic ... European Continental Ancestry Group/genetics; Female; Genetic Association Studies; Genetic Predisposition to Disease; Humans; ... combined analysis of 111,421 individuals of European ancestry. : combined analysis of 111,421 individuals of European ancestry ... combined analysis of 111,421 individuals of European ancestry. : combined analysis of 111,421 individuals of European ancestry ...
African ancestry is mostly positively correlated with disease risk, and European ancestry is mostly negatively correlated. The ... Population distributions of Colombias three major ethnic groups - Mestizo, Afro-Colombian, and Indigenous - were compared to ... African genetic ancestry is most strongly correlated with predicted disease risk, whereas European and Native American ancestry ... Patterns of genetic ancestry and admixture for a cohort of 624 individuals from Medellín were compared to disease risk inferred ...
... when controlling for genetic ancestry. Finally, we capture four expression quantitative trait loci that interact with the ... of different environment exposures on the transcriptome and clinical endophenotypes when controlling for genetic ancestry by ... overpowering that of genetic ancestry. Air pollution impacts gene expression and pathways affecting cardio-metabolic and ... different regional ancestries, same regional environment). d Between FC-locals and Europeans (different continental ancestries ...
European Continental Ancestry Group, Adult, Cohort Studies, Motor Activity, Middle Aged, Female, Male", ...
Asian Continental Ancestry Group /genetics; Depressive Disorder /drug therapy; Drug Resistance /genetics; European Continental ... Ancestry Group /genetics; Female; Genotype; Humans; Introns /genetics; Male; Membrane Glycoproteins /genetics /physiology; ...
CW people moving into Scandinavia from continental Europe bringing in new genetic ancestry and mixing with existing TRB groups ... which appeared at this time exhibit genetic ancestry from European CW groups that migrated into Scandinavia but also exhibit ... these people originated from CW groups that moved to southern Scandinavia from continental Europe. ... 2014; Prescott 2005; Simonsen 2017; Vandkilde 1996). The long-distance trading networks and connections to continental Europe ...
European Continental Ancestry Group Medicine & Life Sciences 29% * Confidence Intervals Medicine & Life Sciences 19% ... In: European Urology, Vol. 53, No. 1, 01.2008, p. 99-105.. Research output: Contribution to journal › Article › peer-review ... The higher risk in black men compared with white men was more apparent in younger age groups (p value for interaction ,0.001). ... The higher risk in black men compared with white men was more apparent in younger age groups (p value for interaction ,0.001). ...
European Continental Ancestry Group. Jackson LJ, OBrien K, Pecora PJ. 2011. Posttraumatic stress disorder among foster care ...
European Continental Ancestry Group Medicine & Life Sciences 30% * necdin Medicine & Life Sciences 19% ...
European Continental Ancestry Group Medicine & Life Sciences 42% View full fingerprint Cite this. * APA ... In: Group Processes and Intergroup Relations, Vol. 19, No. 3, 05.2016, p. 374-393.. Research output: Contribution to journal › ... Minority groups who show implicit outgroup preference (African Americans, the elderly, and the overweight) are also likely to ... Rudman, LA & McLean, MC 2016, The role of appearance stigma in implicit racial ingroup bias, Group Processes and Intergroup ...
... and as the risk factors reported here were discovered by analysing DNA from groups of European descent, it is our hope that the ... these findings will contribute to the swift analysis of the impact of these variants in cohorts of other continental ancestries ... Approximately 20% of people of European descent carry two copies of the first variant, a version of a SNP on chromosome 8q24, ... Data and sample collection in Iceland and the Netherlands was funded in part by European commission grants LSHC-CT-2005-018827 ...
Aged, Aged, 80 and over, Asian Continental Ancestry Group, Body Composition, European Continental Ancestry Group, Exercise Test ... African Continental Ancestry Group/psychology, European Continental Ancestry Group/psychology, Exercise/psychology, Focus ... METHODS: Focus groups with African Americans, non-Hispanic whites, and Hispanics. Risk ratings of light, regular, and menthol ... Groups, Health Knowledge, Attitudes, Practice, Hispanic Americans/psychology, Humans, Marijuana Smoking/epidemiology, Marijuana ...
Employing pair-wise comparisons of the FST statistic between the ethnic populations grouped according to the four continental ... In European and East Asian populations, the I/D heterozygous genotype was most abundant, except in Japanese (Tokyo) and Han ... Among people of South Asian ancestry, in particular Gujarati and Telugu Indian people, the D/D genotype was nearly absent and ... The same group of researchers, working at Cornell University, Ithaca, NY, in collaboration with colleagues at the University of ...
European Continental Ancestry Group. Conner KO, Copeland VCarr, Grote NK, Koeske G, Rosen D, Reynolds CF, Brown C. 2010. Mental ...
European Continental Ancestry Group 42% * Pulse Wave Analysis 36% 3 Scopus citations ... Loenneke, J. P., Fahs, C. A., Heffernan, K. S., Rossow, L. M., Thiebaud, R. S. & Bemben, M. G., Feb 1 2013, In: European ... Heffernan, K. S., Patvardhan, E. A., Kapur, N. K., Karas, R. H. & Kuvin, J. T., Aug 2012, In: European Journal of Applied ... Kavazis, A. N., DeRuisseau, K. C. & Gordon, D. M., Dec 2012, In: European Journal of Applied Physiology. 112, 12, p. 3983-3990 ...
European Continental Ancestry Group 76% * minority 56% * Who is a typical woman? Exploring variation in how race biases ... Craig, M. A. & Lee, M. M., Apr 2022, In: Group Processes and Intergroup Relations. 25, 3, p. 661-681 21 p.. Research output: ... M. & Jost, J. T., Dec 2022, In: European Journal of Social Psychology. 52, 7, p. 994-1014 21 p.. Research output: Contribution ... Knowles, E. D., Tropp, L. R. & Mogami, M., Apr 2022, In: Group Processes and Intergroup Relations. 25, 3, p. 768-790 23 p.. ...
European Continental Ancestry Group 15% * Epidemics 14% * Antiviral Agents 13% * Color 13% ...
European Continental Ancestry Group 11% * African Continental Ancestry Group 9% * Mental Health 7% ... for the HELP OLE Investigators, Mar 2022, In: Allergy: European Journal of Allergy and Clinical Immunology. 77, 3, p. 979-990 ... on behalf of the HELP Study Investigators, Apr 2021, In: Allergy: European Journal of Allergy and Clinical Immunology. 76, 4, p ... PeARL collaborators, on behalf of the PeARL Think Tank, Jun 2021, In: Allergy: European Journal of Allergy and Clinical ...
European Continental Ancestry Group 6% 2 Scopus citations * Specific recommendations to improve the design and conduct of ... OCT Substudy Group of the NORDIC Idiopathic Intracranial Hypertension Treatment Trial, 1 Jun 2016, In: Ophthalmology. 123, 6, p ... Pediatric Eye Disease Investigator Group, Aug 2022, In: Ophthalmology. 129, 8, p. 856-864 9 p.. Research output: Contribution ... NORDIC Idiopathic Intracranial Hypertension Study Group, Jun 2016, In: Obesity Science and Practice. 2, 2, p. 95-103 9 p.. ...
European Continental Ancestry Group 15% * oxidized low density lipoprotein 11% * African Continental Ancestry Group 10% ... Determinants of cognitive performance and decline in 20 diverse ethno-regional groups: A COSMIC collaboration cohort study. ...
European Continental Ancestry Group (2) * Female (2) * Humans (2) * Male (2) * Middle Aged (2) ...
European Continental Ancestry Group 91% * Plague 86% * Hospitalization 73% * African Continental Ancestry Group 64% ...
African Continental Ancestry Group 67% * European Continental Ancestry Group 28% * Breast Neoplasms 14% ... Correlation of the Ki67 Working Group prognostic risk categories with the Oncotype DX Recurrence Score in early breast cancer. ...
European Continental Ancestry Group 36% * student 34% View all 17 Research outputs ... Social and Emotional Learning Group Work during the COVID-19 Pandemic, the Reopening, and the Mobilization for Racial Justice. ... She is particularly interested in the role that stereotyping plays in the "achievement gaps" between different groups of ... funded by the European Union and the United States Department of Education. She received her Masters degree in Social Work ( ...
European Continental Ancestry Group 8% * Prescriptions 7% * Logistic Models 5% * Clinical Trials 5% ...
European Continental Ancestry Group Medicine & Life Sciences 60% * Cold Arts & Humanities 58% ... Avoidant attachment style predicts less positive evaluations of warm (but not cold) social groups. Group Processes and ... social groups. In: Group Processes and Intergroup Relations. 2018 ; Vol. 21, No. 1. pp. 19-36. ... In: Group Processes and Intergroup Relations, Vol. 21, No. 1, 01.01.2018, p. 19-36.. Research output: Contribution to journal ...
... in 1 second and the ratio of forced expiratory volume in 1 second to forced vital capacity in 48,201 individuals of European ... ancestry with follow up of the top associations in up to an additional 46,411 individuals. We identified new regions showing ... Child, European Continental Ancestry Group, Genome-Wide Association Study, Humans, Pulmonary Disease, Chronic Obstructive, ... and the ratio of forced expiratory volume in 1 second to forced vital capacity in 48,201 individuals of European ancestry with ...

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