Sökning: "Inga-maj Johansson"

Hittade 4 avhandlingar innehållade orden Inga-maj Johansson.

  1. 1. Pea carbonic anhydrase : a kinetic study

    Författare :Inga-Maj Johansson; W. Richard Chegwidden; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Pisum sativum; carbonic anhydrase; kinetic studies; site-directed mutagenisis;

    Sammanfattning : The enzyme carbonic anhydrase (CA), catalysing the interconversion between CO2 and HCO3', has long been known to be present in plants as well as in animals. Several of the animal isozymes, but none of the plant CAs, have been extensively studied. LÄS MER

  3. 2. Behavioral effects of female sex steroid hormones : models of PMS and PMDD in Wistar rats

    Författare :Magnus Löfgren; Torbjörn Bäckström; Inga-Maj Johansson; Per Södersten; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; PMS; PMDD; rats; progesterone; estradiol; behavior; individual response; stress interaction; tolerance; withdrawal; learning and memory; anxiety.; Biological research on drug dependence; Biologisk beroendeforskning; Endocrinology; Endokrinologi; Obstetrics and gynaecology; Obstetrik och gynekologi; Pharmacological research; Farmakologisk forskning; Obstetrics and gynaecology; Obstetrik och gynekologi; Psychology; Psykologi; obstetrik och gynekologi; Obstetrics and Gynaecology;

    Sammanfattning : Background Animal models can be used to mimic human conditions of psychopathology, and also as pre-clinical models to evaluate candidate drugs. With hormonal treatment it is possible to produce behavior in the rat which corresponds to the mental symptoms of pre-menstrual syndrome (PMS), and pre-menstrual dysphoric disorder (PMDD). LÄS MER

  4. 3. Tolerance and antagonism to allopregnanolone effects in the rat CNS

    Författare :Sahruh Turkmen; Inga-Maj Johansson; Agneta Nordberg; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Allopregnanolone; GABA-A receptor; UC1011; Spatial memory; Morris Water Maze; Tolerance; Silent second; mRNA; Obstetrics and gynaecology; Obstetrik och gynekologi;

    Sammanfattning : Many studies have suggested a relationship between sex steroids and negative mental and mood changes in women. Allopregnanolone, a potent endogenous ligand of the GABA-A receptor and a metabolite of progesterone, is one of the most accused neuroactive steroids. LÄS MER

  5. 4. Progesterone metabolites : learning, tolerance, antagonism & metabolism

    Författare :Charlotte Öfverman; Inga-Maj Johansson; Torbjörn Bäckström; Esa Korpi; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; allopregnanolone; isoallopregnanolone; THDOC; learning; tolerance; antagonism; inhibition; patch clamp; Morris water maze; metabolism; epimerization; Obstetrics and gynaecology; Obstetrik och gynekologi; obstetrik och gynekologi; Obstetrics and Gynaecology;

    Sammanfattning : Progesterone metabolites as allopregnanolone, isoallopregnanolone and tetrahydrodeoxy-corticosterone (THDOC) are increased in the luteal phase of the menstrual cycle, throughout pregnancy and during stress. Allopregnanolone and THDOC are neurosteroids with 3α-hydroxy, 5α-configurations and positive modulating effect on the GABAA receptor. LÄS MER