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Undifferentiated collagen vascular disease

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https://www.readbyqxmd.com/read/25158157/characterization-isolation-expansion-and-clinical-therapy-of-human-corneal-epithelial-stem-progenitor-cells
#1
REVIEW
De-Quan Li, Zhichong Wang, Kyung-Chul Yoon, Fang Bian
Stem cells can be defined as cells that have the capacity to self-renew and the ability to generate differentiated progeny or multiple cell lineages. True stem cells can turn into any type of cells, while progenitor cells are more or less committed to becoming cell types of a particular tissue. Human corneal epithelial stem cells (CESCs) represent a great example and model of adult stem or progenitor cells. Human CESCs have been identified to locate in the basal epithelial layer of the limbus, and thus also referred as to limbal stem cells...
2014: Journal of Stem Cells
https://www.readbyqxmd.com/read/23761629/functional-expression-of-smooth-muscle-specific-ion-channels-in-tgf-%C3%AE-1-treated-human-adipose-derived-mesenchymal-stem-cells
#2
Won Sun Park, Soon Chul Heo, Eun Su Jeon, Da Hye Hong, Youn Kyoung Son, Jae-Hong Ko, Hyoung Kyu Kim, Sun Young Lee, Jae Ho Kim, Jin Han
Human adipose tissue-derived mesenchymal stem cells (hASCs) have the power to differentiate into various cell types including chondrocytes, osteocytes, adipocytes, neurons, cardiomyocytes, and smooth muscle cells. We characterized the functional expression of ion channels after transforming growth factor-β1 (TGF-β1)-induced differentiation of hASCs, providing insights into the differentiation of vascular smooth muscle cells. The treatment of hASCs with TGF-β1 dramatically increased the contraction of a collagen-gel lattice and the expression levels of specific genes for smooth muscle including α-smooth muscle actin, calponin, smooth mucle-myosin heavy chain, smoothelin-B, myocardin, and h-caldesmon...
August 15, 2013: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/21751630/undifferentiated-connective-tissue-disease-with-pulmonary-involvement
#3
P Arjun, K A Ameer, S Sasikumar, A Rajalakshmi, T A Hari, Mathew Thomas
Pulmonary involvement in collagen vascular diseases is extremely common. It is usually seen in the well described dyscollagenoses and in mixed connective tissue diseases (MCTD). However, there is a lesser known entity called Undifferentiated Connective Tissue Disease (UCTD) which can also involve the lung. We herein present a case of a young man who was detected to have lung involvement secondary to UCTD.
March 2011: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/20688539/dose-dependent-systolic-contribution-of-differentiated-stem-cells-in-post-infarct-ventricular-function
#4
Winston S N Shim, Genevieve Tan, Yacui Gu, Ling Qian, Shiqi Li, Ying Ying Chung, Sze Yun Lim, Eugene Sim, Seng Chye Chuah, Philip Wong
BACKGROUND: Differentiation of bone marrow stem cells toward cardiomyocytes has been widely reported in vitro. However, optimum cell types and mechanisms leading to functional improvement in cardiac cell therapy remain unresolved. There is limited evidence showing a dose-dependent effect of transplanted cells in contributing to functional recovery. This study showed that cell transplantation of differentiated cardiomyocyte-like cells (CLCs) and undifferentiated mesenchymal stem cells (MSCs) dose-dependently improved left ventricular function in a rat myocardial infarction model...
December 2010: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/19002770/human-fetal-aorta-derived-vascular-progenitor-cells-identification-and-potential-application-in-ischemic-diseases
#5
Gloria Invernici, Paolo Madeddu, Costanza Emanueli, Eugenio A Parati, Giulio Alessandri
Vasculogenesis, the formation of blood vessels in embryonic or fetal tissue mediated by immature vascular cells (i.e., angioblasts), is poorly understood. Here we report a summary of our recent studies on the identification of a population of vascular progenitor cells (VPCs) in human fetal aorta. These undifferentiated mesenchymal cells co-express endothelial and myogenic markers (CD133+, CD34+, KDR+, desmin+) and are localized in outer layer of the aortic stroma of 11-12 weeks old human fetuses. Under stimulation with VEGF-A or PDGF-BB, VPCs give origin to a mixed population of mature endothelial and mural cells, respectively...
September 2008: Cytotechnology
https://www.readbyqxmd.com/read/17804541/hearing-loss-as-the-presenting-feature-of-systemic-vasculitis
#6
Merav Lidar, Eldar Carmel, Yona Kronenberg, Pnina Langevitz
Hearing loss, both sensorineural and conductive, is a well-recognized manifestation of systemic vasculitis, yet has only infrequently been described as its initial presentation. We describe three cases in which hearing loss preceded the diagnosis of systemic vasculitis by a period of a few weeks to more than 6 months. While steroid therapy was initiated immediately in one of the cases, comprehensive immunosuppressive therapy was given only after additional manifestations compatible with vasculitis appeared, allowing for a diagnosis of Wegener's granulomatosis in two of the cases and undifferentiated vasculitis, in the third...
June 2007: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/16538060/primitive-myxoid-mesenchymal-tumor-of-infancy-a-clinicopathologic-report-of-6-cases
#7
Rita Alaggio, Vito Ninfo, Angelo Rosolen, Cheryl M Coffin
Soft tissue sarcomas in the first year of life are rare, and the most common sarcomas in infancy are embryonal rhabdomyosarcoma, Ewing sarcoma/primitive neuroectodermal tumor, congenital infantile fibrosarcoma, and primitive sarcomas such as undifferentiated sarcoma. In this study, we report 6 cases of a primitive myxoid mesenchymal tumor of infancy (PMMTI), which previously may have been included under the diagnostic categories of congenital-infantile fibrosarcoma or infantile fibromatosis. PMMTI occurred in 6 infants, 3 of whom had a congenital presentation of a soft tissue mass...
March 2006: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/16084315/does-mixed-connective-tissue-disease-exist-yes
#8
REVIEW
Martin Aringer, Günter Steiner, Josef S Smolen
For patients who have combined features of rheumatoid arthritis, the limited cutaneous form of systemic sclerosis, and inflammatory myopathies, the concept of mixed connective tissue disease (MCTD) often helps to predict and diagnose organ problems and to educate the patient accordingly. With high titer IgG antibodies to U1 ribonucleoprotein (U1-snRNP), this concept is supported by a specific serologic marker, and autoantibodies to U1-snRNP and to heterogeneous nuclear ribonucleoprotein (hnRNP)-A2 display MCTD specificity with regard to the recognized epitopes...
August 2005: Rheumatic Diseases Clinics of North America
https://www.readbyqxmd.com/read/14501291/a-case-suggesting-lymphocytic-vasculitis-as-a-presenting-sign-of-early-undifferentiated-connective-tissue-disease
#9
Chee Won Oh, Seung Hyun Lee, Eun Phil Heo
A previously healthy 14-year-old Korean male presented with striking hemorrhagic acral livedo associated with anti-ribonucleoprotein antibodies. His skin biopsy revealed a striking lymphocytic vascular reaction with mild superficial perivascular lymphocytic infiltrates, perivascular extravasation of red blood cells, and leukocytoclastic debris. Lymphocytic vasculitis (LV) is defined in different ways by different authors. The above biopsy findings do not fulfill the criteria for LV of all authors. Chronic lymphocyte-mediated endothelial cell injury may play an important role in the pathogenesis of collagen vascular disease...
October 2003: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/12114387/severe-erythroderma-as-a-complication-of-continuous-epoprostenol-therapy
#10
Gregory S Ahearn, M Angelica Selim, Victor F Tapson
Epoprostenol is a vasodilator that is produced by vascular endothelial cells and is currently the "gold standard" therapy for patients with severe primary pulmonary hypertension or pulmonary hypertension secondary to collagen vascular disease. Hypersensitivity to the drug has not been reported. We report a case of a patient with pulmonary hypertension and undifferentiated connective tissue disease who, after 2 months of treatment with epoprostenol, presented with rapidly progressive erythema, scaling, nausea and vomiting, and fever...
July 2002: Chest
https://www.readbyqxmd.com/read/9726335/dactylitis-implications-for-clinical-practice
#11
B M Rothschild, C Pingitore, M Eaton
OBJECTIVES: To assess the specificity of dactylitis for the diagnosis of spondyloarthropathy, sarcoidosis, and gout; and to characterize dactylitis specifically associated with gout. METHODS: Dactylitis was prospectively assessed among all individuals presenting to the Arthritis Center of Northeast Ohio from 1986 to 1996. RESULTS: Dactylitis was observed in 12% of individuals with spondyloarthropathy, 17% with sarcoidosis, and 5% with gout, but not in 96 patients with rheumatoid arthritis or in 2,434 patients with osteoarthritis, neck or back pain, or collagen vascular diseases...
August 1998: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/6335422/clinical-profiles-of-patients-with-antibodies-to-nuclear-ribonucleoprotein
#12
J Calderon, V Rodriguez-Valverde, S Sanchez Andrade, J L Riestra, J Gomez-Reyno
Currently there are no widely accepted criteria for the diagnosis of MCTD. In this work we attempted to define the clinical profile of a group of 68 patients with anti nRNP antibodies, detected by immunoprecipitation in 0.6% agarose. The diagnosis of each collagen vascular disease was established in every patient, who met with the strict diagnostic criteria either at clinical presentation or during the follow-up period. Twenty-eight patients had SLE, 9 had classical erosive RA, three had PSS and one had PM...
December 1984: Clinical Rheumatology
https://www.readbyqxmd.com/read/3684779/non-thrombotic-changes-of-fetal-placental-vessels-in-stillbirths-a-qualitative-and-quantitative-study
#13
A M Altemani, J Lopes de Faria
A qualitative and quantitative microscopical examination of fetal stem vessels was performed in 50 placentas of stillborn infants and 50 normal controls. The vascular changes were morphologically similar in both groups, differences being only of quantitative nature. Subendothelial edema was more frequent in control placentas suggesting that it is not pathological. Subendothelial proliferation of smooth muscle cells prevailed in control and fresh stillbirths and could be due to arterial growth. Subendothelial proliferation of undifferentiated cells or fibrous and muscular tissues was more common in stillbirths...
October 1987: Pathology, Research and Practice
https://www.readbyqxmd.com/read/1306148/anti-jo-1-antibody-in-patients-with-polymyositis-dermatomyositis
#14
C C Leu, J L Lan
Interstitial lung disease (ILD) has been recognized as a manifestation of polymyositis or dermatomyositis (PM/DM). Patients with PM/DM with anti-Jo-1 antibody had a higher incidence of ILD. Thirty-five patients with PM/DM were studied the antibodies. Six (16.1%) were found to have them. ILD occurred in all 6 anti-Jo-1 positive patients, as opposed to 10 (34.5%) of 29 anti-Jo-1 negative patients. Only 2 cases of undifferentiated connective tissue disease among 1320 patients with various kinds of collagen vascular diseases other than PM/DM were positive for anti-Jo-1 antibody...
February 1992: Zhonghua Minguo Wei Sheng Wu Ji Mian Yi Xue za Zhi, Chinese Journal of Microbiology and Immunology
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