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Pathological Conditions, Signs and Symptoms Commons™
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Articles 1 - 5 of 5
Full-Text Articles in Pathological Conditions, Signs and Symptoms
Development Of Repressible Systems To Control Gene Expression In Vaccinia Virus, Allison Titong
Development Of Repressible Systems To Control Gene Expression In Vaccinia Virus, Allison Titong
Master's Theses
Two vaccinia virus (VACV) expression systems that contain elements from the lactose (lac) and the tetracycline (tet) operons of E. coli were developed to repress the expression of a reporter gene, enhanced green fluorescent protein (EGFP), in the presence of tet operon inducers. In the first system, lac and tet operon elements were arranged in a gene circuit, and in the presence of increasing concentrations of a lac operon inducer (isopropyl-β-D-thiogalactoside, IPTG), EGFP expression increased in a dose dependent manner and at high IPTG concentrations, expression reached the same levels as a positive control virus. Importantly, in the …
Development Of A Protocol To Measure Gene Expression In The Mouse Tibia, Daniel Hoover
Development Of A Protocol To Measure Gene Expression In The Mouse Tibia, Daniel Hoover
Biomedical Engineering
Numerous molecular factors active in bone tissue direct fracture repair and remodeling which can be altered by disease conditions such as Peripheral Arterial Disease (PAD) and Osteoporosis. Methods of molecular biology are commonly applied to investigate the expression and role of these molecular factors. This project presents a robust three-step protocol for examining gene expression in the mouse tibia. The protocol begins with isolating RNA from a flash frozen tibia sample. The isolated RNA is reverse transcribed into cDNA. Finally, PCR is performed to indentify expressed genes. Establishing this protocol will allow further research into the mechanisms of bone remodeling …
The Clinical, Endoscopic And Histological Spectrum Of The Solitary Rectal Ulcer Syndrome: A Single-Center Experience Of 116 Cases, Shahab Abid, Ali Khawaja, Salima Ahmed Bhimani, Zubair Ahmad, Saeed Hamid, Wasim Jafri
The Clinical, Endoscopic And Histological Spectrum Of The Solitary Rectal Ulcer Syndrome: A Single-Center Experience Of 116 Cases, Shahab Abid, Ali Khawaja, Salima Ahmed Bhimani, Zubair Ahmad, Saeed Hamid, Wasim Jafri
Section of Gastroenterology
Background
Solitary rectal ulcer syndrome (SRUS) is an uncommon although benign defecation disorder. The aim of this study was to evaluate the variable endoscopic manifestations of SRUS and its association with other diseases.
Methods
All the patients diagnosed with SRUS histologically from January 1990 to February 2011 at The Aga Khan University, Karachi were included in the study. The medical records were reviewed retrospectively to evaluate the clinical spectrum of the patients along with the endoscopic and histological findings.
Results
A total of 116 patients were evaluated. The mean age was 37.4 ± 16.6 (range: 13–80) years, 61 (53%) of …
Pulmonary Hyalinising Granuloma: A Rare Pulmonary Disorder, Arsalan Rahatullah, Zeeshan Waheed, Javaid A Khan, Nasir-Ud-Din
Pulmonary Hyalinising Granuloma: A Rare Pulmonary Disorder, Arsalan Rahatullah, Zeeshan Waheed, Javaid A Khan, Nasir-Ud-Din
Section of Pulmonary & Critical Care
Pulmonary hyalinising granulomas are rare, noninfectious fibrosclerosing lesions of the lung which can mimic metastatic disease. It was first described in literature by Engleman et al in the year 1977. Its etiology is unknown but they may be caused by an exaggerated immune response. The patient typically presents with cough, chest pain. dyspnoea or haemoptysis in association with multiple bilateral parenchymal nodules. We report the case of a 20 years old male who presented with a 12-month history of worsening dry cough. His plain chest radiograph and subsequent CT scan revealed bilateral pulmonary nodules. A CT guided biopsy of the …
Heterotopic Ossification: Cellular Basis, Symptoms, And Treatment, Brian Wolfe
Heterotopic Ossification: Cellular Basis, Symptoms, And Treatment, Brian Wolfe
Senior Honors Theses
Heterotopic ossification (HO) is the process by which calcified bone develops in soft tissues. Because of the abnormal calcification, complications such as bone deformation, loss of range of motion, and joint immobility adversely affect patients. There are many genetic types of heterotopic ossification, namely fibrodysplasia ossificans progressiva, progressive osseous heteroplasia, and Albright hereditary osteodystrophy. However, this condition can also arise from surgery, burns, or traumatic injuries, so it is seen as an important area for research in the future. There are various treatments available such as non-steroidal anti-inflammatory drugs and radiation therapy, as well as combinations of the two. The …