Search for dissertations about: "1999 in vitro"

Showing result 1 - 5 of 136 swedish dissertations containing the words 1999 in vitro.

  2. 1. Growth regulation in sarcomas : studies in vivo and in cell culture

    Author : Avni Abdiu; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : Sarcomas are malignant tumors of mesenchymal origin, and can arise in soft-tissue and in bones. It has been suggested that the abnormal growth regulation in sarcoma cells may be due to an autocrine mechanism, in which the cells are stimulated by an endogenous production of growth factors. READ MORE

  4. 2. Development of nicotinic receptor ligands for positron emission tomography - from in vitro to in vivo : Binding studies of neuronal nicotinic acetylcholine receptors using different ³H-, ¹1C- and `6Br - labeled ligands

    Author : Wiebke Sihver; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurosciences; nicotinic acetylcholine receptor; PET-ligand; in vitro; in vivo; Alzheimer s disease; Neurovetenskap; Neurology; Neurologi; medicinsk farmakologi; Medical Pharmacology;

    Abstract : Neuronal nicotinic acetylcholine receptors (nAChRs) are involved in central processes, such as cognitive functionand memory, and play a critical role in neuropathological changes in Alzheimer's disease (AD). The in vivocharacterization of nAChRs by positron emission tomography (PET) may increase our understanding of thefunctional implications of these receptors in AD and their early changes during this disease. READ MORE

  5. 3. Aspects of aqueous humor dynamics : Studies in vivo and in vitro

    Author : Maria Samuelsson-Almén; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology and anatomy; Aqneous humor flow; intraocular pressure; adenylate cyclase; nonpigmented ciliary epithelium; pituitary adenylate cyclase-activating polypeptide; vasoactive intestinal polypeptide; dopamine; prostaglandin; Fysiologi och anatomi; Physiology and pharmacology; Fysiologi och farmakologi; Physiology; fysiologi;

    Abstract : The purpose of the present investigation was to study the effects of PGF2α-l-isopropylester, some neuropeptides, and pharmacological agents on aqueous humor dynamics and intraocular pressure (IOP) in vivo and on adenylate cyclase activity in the nonpigmented ciliary epithelium (NPE) in vitro.Pituitary adenylate cyclase-activating polypeptide (PACAP) and vasoactive intestinal polypeptide (VIP) caused a dose-dependent increase in cAMP formation, indicating that the NPE contains receptors for PACAP and VIP coupled to adenylate cyclase activation. READ MORE

  6. 4. Epidermal keratinocytes studied by X-ray microanalysis, with special reference to contact dermatitis : In vivo and in vitro studies of functional changes in human cells

    Author : Anders Grängsjö; Uppsala universitet; []
    Keywords : Medical sciences; X-ray microanalysis; elements; epidermis; keratinocytes; proliferation; cell membrane damage; Ki67; irritants; intracellular elemental content; keratinocyte culture; HaCaT; NHEK; RT-PCR; immunohistochemistry; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; anatomi; Human Anatomy;

    Abstract : By determining the intracellular elemental content, information can be obtained on the physiological status of cells. The cellular content of sodium, magnesium, phosphorus, sulfur, chloride, potassium and calcium can be indicative for proliferation, cell membrane damage or cell death. READ MORE

  7. 5. Physiopathological aspects of NMDA transmission in the basal ganglia : in vitro and in vivo release studies

    Author : Michele Morari; Karolinska Institutet; Karolinska Institutet; []
    Keywords : basal ganglia; NMDA; dizocilpine; microdialysis; slices; synaptosomes; dopamine; acetylcholine; glutamate; GABA; 6OH-dopamine;

    Abstract : N-methyl-D-aspartic acid (NMDA) is an excitatory amino acid selectively acting on a subclass of glutamate receptors (the NMDA ionotropic receptor) which has been involved in many of the physiological and pathological effects of glutamate in the CNS. The basal ganglia are particularly enriched in NMDA receptors and NMDA receptor activation in the basal ganglia has been involved in the expression of motor behaviour. READ MORE