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1.
Med Decis Making ; 37(5): 589-599, 2017 07.
Article in English | MEDLINE | ID: mdl-28590833

ABSTRACT

BACKGROUND: For many women with epilepsy (WWE), decision making about pregnancy is complicated by considerations such as the potential teratogenicity of antiepileptic drugs, offspring risk of epilepsy, seizure occurrence during pregnancy, and the challenges of parenting amidst poorly controlled seizures. OBJECTIVE: This proof-of-concept, randomized controlled trial aimed to evaluate a decision aid (DA) developed to help WWE decide if they should start or enlarge their families. METHODS: Seventy-nine WWE of childbearing age were recruited from Epilepsy Action Australia between October and November 2013 and randomized to receive the intervention (the DA) or not, and to complete a set of questionnaires pre- and post- intervention. The DA, delivered as a PDF booklet, provided balanced evidence-based information about options, risks and benefits, including probabilities; as well as steps for clarifying values and considering options within one's personal situation. RESULTS: Compared with the control group, the DA group had statistically significant improvements in knowledge about pregnancy and epilepsy (Cohen's d = 1.24; 95%CI = 0.77 to 1.83) and reduced decisional conflict (Cohen's d = 0.59; 95%CI = 0.21 to 0.99). Changes in decision self-efficacy, certainty of choice, patient-practitioner communication abilities and value congruence with choice were comparable between the DA and control group. Importantly, women's decisions about motherhood were not biased towards either direction, and there were no adverse effects on depression or anxiety. All women who received the DA indicated they would recommend it to other WWE. CONCLUSIONS: The DA has the potential to serve as a useful support tool for WWE who are considering motherhood. Future research is needed to test the DA in clinical settings with guidance from a health professional. The trial was registered with the Australian New Zealand Clinical Trials Registry (ID ACTRN12613001082796).


Subject(s)
Choice Behavior , Decision Support Techniques , Epilepsy/psychology , Adult , Australia , Female , Humans , Pregnancy , Surveys and Questionnaires , Young Adult
2.
Epilepsy Behav ; 31: 246-55, 2014 Feb.
Article in English | MEDLINE | ID: mdl-24210460

ABSTRACT

For women with epilepsy (WWE), pregnancy is complicated by considerations such as the potential teratogenicity of antiepileptic drugs (AEDs) versus the risks of having seizures during pregnancy. However, qualitative research suggests that many WWE remain uninformed about the risks associated with epilepsy and pregnancy and may, therefore, be making uninformed decisions about their families. The objectives of this review were to determine the level of patient knowledge, their informational needs, and whether these needs concerning pregnancy and childbirth issues are met among WWE. Electronic databases searched were PsycINFO, MEDLINE, Embase, CINAHL, and Web of Science. Studies were included if they used quantitative methods to survey WWE aged 16years or older about their knowledge, access to information, or informational needs specifically regarding epilepsy and pregnancy. Twelve studies were identified and assessed for research standards using the Quality Index. Overall Quality Index score was only 7.1 out of 14, indicating significant design limitations of many included studies, including highly selective sampling methods and the use of unvalidated outcome measures. There was a paucity of studies investigating specific areas of women's knowledge and information needs. Overall, WWE reported adequate awareness, but limited knowledge, of key issues regarding pregnancy and childbirth. Across studies, many women reported not receiving information about these issues. Evidence suggested that many WWE wanted to receive more information - particularly about the risks of AEDs for their offspring - well in advance of choosing an AED or planning pregnancy. Women aged under 35years wanted the most information. Preconception counseling received by many WWE appears insufficient, risking uninformed decision-making about pregnancy. Further research is needed to investigate the barriers that WWE face in accessing, receiving, and retaining appropriate information.


Subject(s)
Epilepsy/psychology , Health Knowledge, Attitudes, Practice , Pregnancy Complications , Pregnancy , Anticonvulsants/adverse effects , Epilepsy/drug therapy , Female , Humans , Pregnancy Complications/chemically induced , Prenatal Exposure Delayed Effects/chemically induced
3.
Development ; 138(23): 5247-56, 2011 Dec.
Article in English | MEDLINE | ID: mdl-22069192

ABSTRACT

The ID family of helix-loop-helix proteins regulates cell proliferation and differentiation in many different developmental pathways, but the functions of ID4 in mammary development are unknown. We report that mouse Id4 is expressed in cap cells, basal cells and in a subset of luminal epithelial cells, and that its targeted deletion impairs ductal expansion and branching morphogenesis as well as cell proliferation induced by estrogen and/or progesterone. We discover that p38MAPK is activated in Id4-null mammary cells. p38MAPK is also activated following siRNA-mediated Id4 knockdown in transformed mammary cells. This p38MAPK activation is required for the reduced proliferation and increased apoptosis in Id4-ablated mammary glands. Therefore, ID4 promotes mammary gland development by suppressing p38MAPK activity.


Subject(s)
Gene Expression Regulation, Developmental/physiology , Inhibitor of Differentiation Proteins/genetics , Inhibitor of Differentiation Proteins/metabolism , Mammary Glands, Animal/growth & development , p38 Mitogen-Activated Protein Kinases/antagonists & inhibitors , p38 Mitogen-Activated Protein Kinases/metabolism , Animals , Apoptosis/drug effects , Bromodeoxyuridine , Cell Proliferation/drug effects , Estradiol/pharmacology , Female , Gene Expression Regulation, Developmental/genetics , Immunoblotting , Immunohistochemistry , In Situ Nick-End Labeling , Mammary Glands, Animal/metabolism , Mice , Mice, Inbred C57BL , Mice, Knockout , Progesterone/pharmacology , Real-Time Polymerase Chain Reaction
4.
Proc Natl Acad Sci U S A ; 103(46): 17396-401, 2006 Nov 14.
Article in English | MEDLINE | ID: mdl-17090666

ABSTRACT

We have adapted the avian leukosis virus RCAS (replication-competent avian sarcoma-leukosis virus LTR splice acceptor)-mediated somatic gene transfer technique to introduce oncogenes into mammary cells in mice transgenic for the avian subgroup A receptor gene, tva, under control of the mouse mammary tumor virus (MMTV) promoter. Intraductal instillation of an RCAS vector carrying the polyoma middle T antigen (PyMT) gene (RCAS-PyMT) induced multiple, oligoclonal tumors within 3 weeks in infected mammary glands of MMTV-tva transgenic mice. The rapid appearance of these tumors from a relatively small pool of infected cells (estimated to be approximately 2 x 10(3) cells per gland by infection with RCAS carrying a GFP gene; RCAS-GFP) was accompanied by a high fraction of cells positive for Ki67, Cyclin D1, and c-Myc, implying strong proliferation competence. Furthermore, the tumors displayed greater cellular heterogeneity than did tumors arising in MMTV-PyMT mice, suggesting that RCAS-PyMT transforms a relatively immature cell type. Infection of mice transgenic for both MMTV-Wnt-1 and MMTV-tva with RCAS virus carrying an activated Neu oncogene dramatically enhanced tumor formation over what is observed in uninfected bitransgenic animals. We conclude that infection of mammary glands with retrovirus vectors is an efficient means to screen candidate oncogenes for their capacity to initiate or promote mammary carcinogenesis in the mouse.


Subject(s)
Antigens, Polyomavirus Transforming/metabolism , Avian Sarcoma Viruses/genetics , Cell Transformation, Neoplastic/metabolism , Genetic Vectors/genetics , Mammary Glands, Animal/metabolism , Mammary Glands, Animal/pathology , Proto-Oncogene Proteins c-myc/metabolism , Animals , Cell Proliferation , Cell Transformation, Neoplastic/genetics , Cell Transformation, Neoplastic/pathology , Cyclin D1/metabolism , Disease Models, Animal , Epithelial Cells/metabolism , Epithelial Cells/pathology , Mammary Glands, Animal/virology , Mice , Mice, Transgenic , Oncogenic Viruses/physiology , Survival Rate
5.
J Histochem Cytochem ; 54(12): 1349-61, 2006 Dec.
Article in English | MEDLINE | ID: mdl-16899760

ABSTRACT

Cytoglobin (Cygb) is a novel tissue hemoprotein relatively similar to myoglobin (Mb). Because Cygb shares several structural features with Mb, we hypothesized that Cygb functions in the modulation of oxygen and nitric oxide metabolism or in scavenging free radicals within a cell. In the present study we examined the spatial and temporal expression pattern of Cygb during murine embryogenesis. Using in situ hybridization, RT-PCR, and Northern blot analyses, limited Cygb expression was observed during embryogenesis compared with Mb expression. Cygb expression was primarily restricted to the central nervous system and neural crest derivatives during the latter stages of development. In the adult mouse, Cygb is expressed in distinct regions of the brain as compared with neuroglobin (Ngb), another globin protein, and these regions are responsive to oxidative stress (i.e., hippocampus, thalamus, and hypothalamus). In contrast to Ngb, Cygb expression in the brain is induced in response to chronic hypoxia (10% oxygen). These results support the hypothesis that Cygb is an oxygen-responsive tissue hemoglobin expressed in distinct regions of thenormoxic and hypoxic brain and may play a key role in the response of the brain to ahypoxic insult.


Subject(s)
Brain/growth & development , Brain/metabolism , Gene Expression Profiling , Globins/genetics , Nuclear Proteins/genetics , Animals , Brain/embryology , Cytoglobin , Globins/biosynthesis , Globins/physiology , Mice , Mice, Inbred C57BL , Mice, Inbred ICR , Nerve Tissue Proteins/genetics , Nerve Tissue Proteins/physiology , Neuroglobin , Nuclear Proteins/biosynthesis , Nuclear Proteins/physiology , Reverse Transcriptase Polymerase Chain Reaction , Sensitivity and Specificity , Spinal Cord/chemistry , Spinal Cord/embryology , Spinal Cord/metabolism
6.
Am J Med Sci ; 330(2): 88-101, 2005 Aug.
Article in English | MEDLINE | ID: mdl-16103789

ABSTRACT

Heart failure has reached epidemic proportions in the United States. More than 5 million patients are treated for heart failure and approximately a half a million new patients are diagnosed with this disease each year in the United States. Recent pharmacological therapies have been used for the treatment of this patient population, but heart failure remains a major source of morbidity and mortality for patients. Orthotopic heart transplantation is a viable treatment option for heart failure patients; however, cardiac transplantation is limited by the donor availability. Limited donor organ availability has led to the development of alternative therapeutic strategies, including xenotransplantation, mechanical support devices, and cell transfer/tissue engineering protocols. This review highlights the current treatment modalities and emerging strategies for the treatment of advanced heart failure.


Subject(s)
Heart Failure/therapy , Heart Transplantation/methods , Animals , Heart Failure/surgery , Humans
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