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Articles 121 - 129 of 129
Full-Text Articles in Medicine and Health Sciences
Scd1 Plays A Tumor-Suppressive Role In Survival Of Leukemia Stem Cells And The Development Of Chronic Myeloid Leukemia, H Zhang, H Li, N Ho, Dongguang Li, Shaoguang Li
Scd1 Plays A Tumor-Suppressive Role In Survival Of Leukemia Stem Cells And The Development Of Chronic Myeloid Leukemia, H Zhang, H Li, N Ho, Dongguang Li, Shaoguang Li
Research outputs 2012
Chronic myeloid leukemia (CML) is derived from a stem cell, and it is widely accepted that the existence of leukemia stem cells (LSCs) is one of the major reasons for the relapse of CML treated with kinase inhibitors. Key to eradicating LSCs is to identify genes that play a critical role in survival regulation of these stem cells. Using BCR-ABL-induced CML mouse model, here we show that expression of the stearoyl-CoA desaturase 1 (Scd1) gene is downregulated in LSCs and that Scd1 plays a tumor-suppressive role in LSCs with no effect on the function of normal hematopoietic stem cells. Deletion …
Altered Expression Of Alzheimer's Disease-Related Proteins In Male Hypogonadal Mice, Eleanor S. Drummond, Ralph Martins, D J Handelsman, A R Harvey
Altered Expression Of Alzheimer's Disease-Related Proteins In Male Hypogonadal Mice, Eleanor S. Drummond, Ralph Martins, D J Handelsman, A R Harvey
Research outputs 2012
Age-related depletion of estrogens and androgens is associated with an increase in Alzheimer's disease (AD) brain pathology and diminished cognitive function. Here we investigated AD-associated molecular and cellular changes in brains of aged hypogonadal (hpg) male and female mice. hpg Mice have a spontaneous, inactivating genetic mutation in the GnRH gene resulting in lifelong deficiency of gonadotropins and gonadal sex hormones. Western blot analysis revealed low levels of amyloid precursor protein and high levels of presenilin 1, amyloid precursor protein C-terminal fragment, and β-amyloid 42 in brains of aged male, but not female, hpg mice. Changes were confined to the …
Biochemical And Structural Changes Of The Kidney In Mice Exposed To Phenol, Zahra Tootian, Ali Louei Monfared, Simin Fazelipour, Mohammad Taghi Shybani, Fatemeh Rouhollah, Farhang Sasani, Ebrahim Molaemi
Biochemical And Structural Changes Of The Kidney In Mice Exposed To Phenol, Zahra Tootian, Ali Louei Monfared, Simin Fazelipour, Mohammad Taghi Shybani, Fatemeh Rouhollah, Farhang Sasani, Ebrahim Molaemi
Turkish Journal of Medical Sciences
Aim: To investigate the histology and function of the kidney in mice exposed to different concentrations of phenol through the gavage method for 10 consecutive days. Materials and methods: Forty female BALB/c mice were selected and randomly divided into 1 control group and 3 experimental groups. The control group was administered distilled water through the gavage method, while the experimental groups received daily doses of 80, 180, and 320 mg/kg of phenol, respectively. After 10 days, blood samples were collected and the sera were analyzed biochemically. Renal tissue samples were also taken and histopathological changes of the kidneys were examined …
The Effect Of Soya Bean Meal On Tibial Articular Cartilage Growth In Mice After Suckling Period: A Histomorphometric And Biochemical Study, Simin Fazelipour, Seyed Babak Kiaei, Amir Hossein Eghtesad, Zahra Tootian
The Effect Of Soya Bean Meal On Tibial Articular Cartilage Growth In Mice After Suckling Period: A Histomorphometric And Biochemical Study, Simin Fazelipour, Seyed Babak Kiaei, Amir Hossein Eghtesad, Zahra Tootian
Turkish Journal of Medical Sciences
To examine the effects of an oral supplement of soya bean meal on the histomorphometric alteration of tibia cartilage and the serum levels of calcium and alkaline phosphatase in 3-week-old female mice using a computer-assisted histomorphometric method. Materials and methods: Forty immature BALB/c female mice were selected and divided into 4 groups. They were fed for 3 months with 4 different regimens: a low-protein regimen without soya bean meal, 23% protein without soya bean meal, 20% of the total protein being provided by soya bean meal, and 40% of the total protein being provided by soya bean meal. After 3 …
Testosterone Treatment Fails To Accelerate Disease In A Transgenic Mouse Model Of Spinal And Bulbar Muscular Atrophy., Erica S Chevalier-Larsen, Diane E Merry
Testosterone Treatment Fails To Accelerate Disease In A Transgenic Mouse Model Of Spinal And Bulbar Muscular Atrophy., Erica S Chevalier-Larsen, Diane E Merry
Department of Biochemistry and Molecular Biology Faculty Papers
Evidence from multiple animal models demonstrates that testosterone plays a crucial role in the progression of symptoms in spinal and bulbar muscular atrophy (SBMA), a condition that results in neurodegeneration and muscle atrophy in affected men. Mice bearing a transgene encoding a human androgen receptor (AR) that contains a stretch of 112 glutamines (expanded polyglutamine tract; AR112Q mice) reproduce several aspects of the human disease. We treated transgenic male AR112Q mice with testosterone for 6 months. Surprisingly, testosterone treatment of AR112Q males did not exacerbate the disease. Although transgenic AR112Q males exhibited functional deficits when compared with non-transgenics, long-term testosterone …
A Study Of The Genetic Mechanisms Used To Regulate The Third Complementarity Determining Region Of The Immunoglobulin H Chain, Mohamed Khass
A Study Of The Genetic Mechanisms Used To Regulate The Third Complementarity Determining Region Of The Immunoglobulin H Chain, Mohamed Khass
All ETDs from UAB
Developing B cells exhibit sequential changes in the representation of immunoglobulin (Ig) heavy (H) chain sequences with excess hydrophobic or charged amino acids in complementarity determining region 3 (CDR-H3). To begin to elucidate the mechanisms by which this process occurs, we used Bromodeoxy Uridine (BrdU) incorporation and Annexin V binding to quantify B cell turnover and cell cycle progression in developing B cell subsets in the bone marrow, spleen and peritoneal cavity of wild-type BALB/c mice. To magnify the effects of hydrophobicity and charge, we included in this analysis mice limited to the use of an IgH allele with a …
Tracing Notochord-Derived Cells Using A Noto-Cre Mouse: Implications For Intervertebral Disc Development., Matthew R Mccann, Owen J Tamplin, Janet Rossant, Cheryle A Séguin
Tracing Notochord-Derived Cells Using A Noto-Cre Mouse: Implications For Intervertebral Disc Development., Matthew R Mccann, Owen J Tamplin, Janet Rossant, Cheryle A Séguin
Physiology and Pharmacology Publications
Back pain related to intervertebral disc degeneration is the most common musculoskeletal problem, with a lifetime prevalence of 82%. The lack of effective treatment for this widespread problem is directly related to our limited understanding of disc development, maintenance and degeneration. The aim of this study was to determine the developmental origins of nucleus pulposus cells within the intervertebral disc using a novel notochord-specific Cre mouse. To trace the fate of notochordal cells within the intervertebral disc, we derived a notochord-specific Cre mouse line by targeting the homeobox gene Noto. Expression of this gene is restricted to the node and …
Administration Of Bone Marrow Derived Mesenchymal Stem Cells Into The Liver: Potential To Rescue Pseudoxanthoma Elasticum In A Mouse Model (Abcc6-/-)., Qiujie Jiang, Shunsuke Takahagi, Jouni Uitto
Administration Of Bone Marrow Derived Mesenchymal Stem Cells Into The Liver: Potential To Rescue Pseudoxanthoma Elasticum In A Mouse Model (Abcc6-/-)., Qiujie Jiang, Shunsuke Takahagi, Jouni Uitto
Department of Dermatology and Cutaneous Biology Faculty Papers
Pseudoxanthoma elasticum (PXE) is a heritable ectopic mineralization disorder caused by loss-of-function mutations in the ABCC6 gene which is primarily expressed in the liver. There is currently no effective treatment for PXE. In this study, we characterized bone marrow derived mesenchymal stem cells (MSCs) and evaluated their ability to contribute to liver regeneration, with the aim to rescue PXE phenotype. The MSCs, isolated from GFP-transgenic mice by magnetic cell sorting, were shown to have high potential for hepatic differentiation, with expression of Abcc6, in culture. These cells were transplanted into the livers of 4-week-old immunodeficient Abcc6⁻/⁻ mice by intrasplenic injection …
Myd88-Dependent Signaling Influences Fibrosis And Alternative Macrophage Activation During Staphylococcus Aureus Biofilm Infection., Mark L. Hanke, Amanda Angle, Tammy Kielian
Myd88-Dependent Signaling Influences Fibrosis And Alternative Macrophage Activation During Staphylococcus Aureus Biofilm Infection., Mark L. Hanke, Amanda Angle, Tammy Kielian
Journal Articles: Pathology and Microbiology
Bacterial biofilms represent a significant therapeutic challenge based on their ability to evade host immune and antibiotic-mediated clearance. Recent studies have implicated IL-1β in biofilm containment, whereas Toll-like receptors (TLRs) had no effect. This is intriguing, since both the IL-1 receptor (IL-1R) and most TLRs impinge on MyD88-dependent signaling pathways, yet the role of this key adaptor in modulating the host response to biofilm growth is unknown. Therefore, we examined the course of S. aureus catheter-associated biofilm infection in MyD88 knockout (KO) mice. MyD88 KO animals displayed significantly increased bacterial burdens on catheters and surrounding tissues during early infection, which …