Sökning: "lactase"

Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet lactase.

  1. 1. Lactase Persistence and Lactase Non-Persistence : Prevalence, influence on body fat, body height, and relation to the metabolic syndrome

    Författare :Ricardo Almon; Peter Engfeldt; Peter Nilsson; Örebro universitet; []
    Nyckelord :MEDICINE; MEDICIN; Medicin; Medicine;

    Sammanfattning : .... LÄS MER

  3. 2. Induced Growth and Precocious Maturation of the Digestive System in Suckling Rats and Pigs after Exposure to Red Kidney Bean Lectin

    Författare :Ann Linderoth; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; neuropsykologi; neurofysiologi; Neurologi; neurophysiology; neuropsychology; Neurology; Fysiologi; Physiology; Djurfysiologi; Animal physiology; sucrase; lactase; amylase; trypsin; weaning; small intestine; glucocorticoids; endocytosis; dissacchridases; intestinal permeability; PHA; pancreas; Development; phytohaemagglutinin;

    Sammanfattning : The timing of the postnatal development of the gastrointestinal (GI) tract in mammals is influenced by dietary and hormonal factors. It was hypothesized that accelerated GI cell turnover during maturation would result in a precoucios conversion to more mature digestive functions. LÄS MER

  4. 3. Population genetic history and patterns of admixture : Examples from northeastern and southern Africa

    Författare :Nina Hollfelder; Mattias Jakobsson; Michele Ramsay; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; population structure; genetic admixture; genomic variation; Africa; population genomics; lactase persistence; sex-biased admixture; human evolutionary genetics; Biology with specialization in Evolutionary Organismal Biology; Biologi med inriktning mot evolutionär organismbiologi;

    Sammanfattning : The origin of humans lies in Africa, as has been shown by archaeology, paleontology and genetics. Here, we can find the largest genetic diversity and the deepest split among human populations. African genetic diversity has been shaped by a long and complex history. LÄS MER

  5. 4. Ancient DNA as a Means to Investigate the European Neolithic

    Författare :Helena Malmström; Anders Göterström; Gunilla Holmlund; T Brown; Uppsala universitet; []
    Nyckelord :Molecular genetics; aDNA; contamination; authentication; mtDNA; Neolithisation; Genetik;

    Sammanfattning : The transition from a hunter-gatherer lifestyle to a farming lifestyle, i.e. the Neolithisation, is arguably the most important event in human prehistory. While the geography and dating of the Neolithisation is well known, the process is still under debate, especially if it occurred through diffusion of ideas or with migrating farmers. LÄS MER

  7. 5. Origins and Adaptation in Humans : A Case Study of Taste and Lifestyle

    Författare :Agnès E. Sjöstrand; Mattias Jakobsson; Evelyne Heyer; Michael G. B. Blum; David Comas; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Evolutionary Genetics; Evolutionär genetik;

    Sammanfattning : In this thesis, I use population genetics and statistical approaches to investigate early human demography, infer local adaptation in diverse sets of populations, and study the genetic basis for taste perception.In the first paper, I examine the genomic evidence for a severe bottleneck, which has been suggested based on paleontological and climate studies to coincide with the emergence of anatomically modern humans. LÄS MER