Sökning: "ovary"

Visar resultat 26 - 30 av 153 avhandlingar innehållade ordet ovary.

1. 26. Granulosa cell apoptosis: Transcriptional regulation by the nuclear progesterone receptor

   Författare :P. Anders Friberg; Göteborgs universitet; []
   Nyckelord :ovary; granulosa cells; ovulation; luteinization; progesterone; apoptosis; cholesterol synthesis; isoprenylation;

   Sammanfattning : Ovarian follicle atresia caused by granulosa cell apoptosis is a central process in normal female physiology. Progesterone has been reported to be a survival factor in granulosa cells at several developmental stages. LÄS MER

3. 27. Endocrine Disruption in Amphibians : Developmental Effects of Ethynylestradiol and Clotrimazole on the Reproductive System

   Författare :Irina Gyllenhammar; Cecilia Berg; Ingvar Brandt; Lena Holm; Joakim Larsson; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Test system; Xenopus tropicalis; Rana temporaria; sex ratio; sex differentiation; fertility; aromatase; ovary; testis; oviduct; Biology; Biologi;

   Sammanfattning : Amphibian populations are declining world-wide and one of the suggested reasons is environmental pollutants. Studies of long-term effects on the reproductive system in frogs following larval exposure to environmental pollutants are scarce. It is therefore important to develop methods to study developmental reproductive toxicity in amphibians. LÄS MER

4. 28. Endogenous Retroviral RNA Expression in Humans

   Författare :Lijuan Hu; Jonas Blomberg; Göran Friman; Francois Mallet; Uppsala universitet; []
   Nyckelord :Microbiology; Human endogenous retrovirus HERV ; HERVE; HERVW; betaretrovirus; gammaretrovirus; RNA expression; real time PCR; endometrium; endometriosis; brain tissue; reproductive tissue; ovarian cancer; ovary; neuroblastoma cell line; Mikrobiologi;

   Sammanfattning : Human endogenous retroviruses (HERVs) constitute about 8% of the human genome. There are around 4000 pol-containing retroviral integrations in the human genome, which makes it impractical to measure each of them separately. LÄS MER

5. 29. Three-dimensional ultrasound studies of normal and abnormal ovaries

   Författare :Ligita Jokubkiene; gynekologisk och prenatal ultraljudsdiagnostik Obstetrisk; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ovary; ovarian follicle; ovarian neoplasms; ultrasonography; three-dimensional imaging; Doppler ultrasound imaging; vascular morphology;

   Sammanfattning : The aims of this work were: 1) to estimate the number of follicles, ovarian volume and power Doppler vascular indices and their changes with age using three-dimensional (3D) transvaginal grey-scale and power Doppler ultrasound in asymptomatic women of fertile age either with natural menstrual cycles or using combined oral contraceptives, and 2) to determine whether tumour vascularity, assessed by 3D power Doppler ultrasound, can help discriminate between benign and malignant ovarian tumours. A group of 303 gynaecologically asymptomatic women, aged 20–39 years with normal menstrual cycles (NMC) and another group of 213 women aged 20–39 years using combined oral contraceptives (COC) were examined using two-dimensional (2D) and 3D transvaginal ultrasound once between cycle day 4 and 8. LÄS MER

7. 30. Macroscopic models of Chinese hamster ovary cell cultures

   Författare :Erika Hagrot; Véronique Chotteau; Anders Forsgren; Nathan E. Lewis; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chinese hamster ovary; Amino acid; Metabolic network; Metabolic flux analysis; Kinetic modeling; Elementary flux mode; Optimization; Column generation; Bioteknologi; Biotechnology;

   Sammanfattning : Biopharmaceuticals treat a range of diseases, and is a growing sector within the pharmaceutical industry. A majority of these complex molecules are produced by genetically modified mammalian cells in large-scale cell cultures. LÄS MER