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Visar resultat 1 - 5 av 82 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Geographic and genetic diversity of hepatitis B

    Författare :Erik Alestig; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; hepatitis B virus; genotype; phylogeny; molecular epidemiology; sequence analysis; mutation;

    Sammanfattning : Hepatitis B Virus (HBV) infection is a global health problem and may lead to chronic hepatitis, liver cirrhosis and hepatocellular cancer. The ability of HBV to adapt to the host environment by genetic variation has lead to the evolution of 8 established (A-H) and 2 putative genotypes (I-J), each corresponding to a rather well-defined geographical distribution. LÄS MER

  3. 2. Human papillomavirus and cellular biomarkers in cervical cancer

    Författare :Malin Kaliff; Gabriella Lillsunde-Larsson; Mats G. Karlsson; Tina Dalianis; Örebro universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cervical cancer; HPV; screening; triage; prognosis; genotype distribution; multiple HPV; HPV-negative; viral load; methylation;

    Sammanfattning : Cervical cancer (CC) is caused by a persistent infection of certain types of the human papillomavirus (HPV). Even though great progress has been made in strategies for prevention, and treatment of CC, there is still a need for improved methods in screening and management of women diagnosed with CC. LÄS MER

  4. 3. Clinical expressions of juvenile hereditary retinal degenerations and macular dystrophies: Electrophysiological and genetic studies

    Författare :Louise Eksandh; Lund Oftalmologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Oftalmologi; Ophtalmology; Rod-monochromacy; Stargardt disease; Juvenile X-linked retinoschisis; Spielmeyer-Vogt disease; Best disease; multifocal-ERG; EOG; full-field ERG; Phenotype; genotype;

    Sammanfattning : Hereditary retinal degenerations are the most frequent reason for severe visual handicap among young people in Scandinavia today. In the six papers included in this thesis the phenotypic expressions, with emphasis on the electrophysiological findings, of five different juvenile hereditary retinal degenerations are described. LÄS MER

  5. 4. Exotoxins of Aggregatibacter actinomycetemcomitans and periodontal attachment loss in adolescents

    Författare :Carola Höglund Åberg; Anders Johansson; Rolf Claesson; Dorte Haubek; Andrea Mombelli; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Aggregatibacter actinomycetemcomitans; periodontal attachment loss; JP2 genotype; non-JP2 genotype; LtxA; Cdt; Infectious Diseases; infektionssjukdomar;

    Sammanfattning : Aggregatibacter actinomycetemcomitans is an oral bacterium that is mainly associated with aggressive forms of periodontitis, which most often starts at an early age. Amongst the virulence factors of A. LÄS MER

  7. 5. Spatial and temporal ecology of oak-associated fungal communities

    Författare :Maria Faticov; Ayco Tack; Peter Hambäck; Paula Baptista; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; abiotic and biotic forces; climate warming; community ecology; foliar fungal community; host genotype; plant microbiome; powdery mildew; seasonal dynamics; warming-by-genotype interaction; Quercus robur; soil fungal community; spatial patterns; ekologi och evolution; Ecology and Evolution;

    Sammanfattning : Plants host a large diversity of microorganisms, which includes fungi, bacteria and archaea. Among these, fungi are highly diverse, and known to play a vital role in plant health and in regulation of the essential ecosystem functions. LÄS MER