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Clinical Significance of T-Cell Immunoglobulin
Mucin 3 Expression on Peripheral Blood
Mononuclear Cells in Pediatric Acute
Immune Thrombocytopenia

Research Abstract
T-cell immunoglobulin mucin 3 (TIM-3) is a transmembrane protein that plays an important role in several autoimmune diseases. The relationship between TIM-3 and excessive immune responses in immune thrombocytopenia (ITP) is still unknown. In this study, we evaluated the relationship between the expression of TIM-3 on peripheral blood mononuclear cells in patients with ITP and the disease severity. The frequency of lymphocyte and monocyte subsets and their TIM-3 expression were evaluated in patients with acute ITP (n ¼ 45) and in healthy control (n ¼ 20) using flow cytometry. Based on bleeding severity, patients were classified into 3 subgroups as mild (n ¼ 12), moderate (n ¼ 25), and severe (n ¼ 8) bleeding. T-helper lymphocytes was found to be significantly decreased in the severe bleeding group compared to the mild and moderate bleeding groups, while CD56high natural killer (NK) cells were significantly expanded in severe bleeding group. In contrast, classical, intermediate, and nonclassical monocytes, natural killer T lymphocyte (NKT), and CD56dim NK cells showed no significant changes among different patient groups. This alteration of lymphocyte and monocyte subsets was associated with significant decrease in TIM-3 expression on CD56high NK cells, T-helper lymphocytes, NKT cells, and nonclassical monocytes in patients with ITP compared to the controls. Lower level of TIM-3 was found in severe bleeding group compared to mild and moderate bleeding groups. These results indicate that TIM-3 may be involved in the pathogenesis of ITP which subsequently can represent an opportunity for new therapeutic plan, moreover. This may have a prognostic value for disease severity.
Research Authors
Asmaa M. Zahran, MD1, Mervat A. M. Youssef, MD2,
Khalid I. Elsayh, MD2, Mustafa M. Embaby, MD2, and Ahmad I. M. Ibrahim, MD2
Research Journal
Clinical and Applied Thrombosis/Hemostasis
Research Pages
NULL
Research Publisher
NULL
Research Rank
1
Research Vol
NULL
Research Website
NULL
Research Year
2017

Clinical Significance of T-Cell Immunoglobulin
Mucin 3 Expression on Peripheral Blood
Mononuclear Cells in Pediatric Acute
Immune Thrombocytopenia

Research Abstract
T-cell immunoglobulin mucin 3 (TIM-3) is a transmembrane protein that plays an important role in several autoimmune diseases. The relationship between TIM-3 and excessive immune responses in immune thrombocytopenia (ITP) is still unknown. In this study, we evaluated the relationship between the expression of TIM-3 on peripheral blood mononuclear cells in patients with ITP and the disease severity. The frequency of lymphocyte and monocyte subsets and their TIM-3 expression were evaluated in patients with acute ITP (n ¼ 45) and in healthy control (n ¼ 20) using flow cytometry. Based on bleeding severity, patients were classified into 3 subgroups as mild (n ¼ 12), moderate (n ¼ 25), and severe (n ¼ 8) bleeding. T-helper lymphocytes was found to be significantly decreased in the severe bleeding group compared to the mild and moderate bleeding groups, while CD56high natural killer (NK) cells were significantly expanded in severe bleeding group. In contrast, classical, intermediate, and nonclassical monocytes, natural killer T lymphocyte (NKT), and CD56dim NK cells showed no significant changes among different patient groups. This alteration of lymphocyte and monocyte subsets was associated with significant decrease in TIM-3 expression on CD56high NK cells, T-helper lymphocytes, NKT cells, and nonclassical monocytes in patients with ITP compared to the controls. Lower level of TIM-3 was found in severe bleeding group compared to mild and moderate bleeding groups. These results indicate that TIM-3 may be involved in the pathogenesis of ITP which subsequently can represent an opportunity for new therapeutic plan, moreover. This may have a prognostic value for disease severity.
Research Authors
Asmaa M. Zahran, MD1, Mervat A. M. Youssef, MD2,
Khalid I. Elsayh, MD2, Mustafa M. Embaby, MD2, and Ahmad I. M. Ibrahim, MD2
Research Journal
Clinical and Applied Thrombosis/Hemostasis
Research Pages
NULL
Research Publisher
NULL
Research Rank
1
Research Vol
NULL
Research Website
NULL
Research Year
2017

Clinical Significance of T-Cell Immunoglobulin
Mucin 3 Expression on Peripheral Blood
Mononuclear Cells in Pediatric Acute
Immune Thrombocytopenia

Research Abstract
T-cell immunoglobulin mucin 3 (TIM-3) is a transmembrane protein that plays an important role in several autoimmune diseases. The relationship between TIM-3 and excessive immune responses in immune thrombocytopenia (ITP) is still unknown. In this study, we evaluated the relationship between the expression of TIM-3 on peripheral blood mononuclear cells in patients with ITP and the disease severity. The frequency of lymphocyte and monocyte subsets and their TIM-3 expression were evaluated in patients with acute ITP (n ¼ 45) and in healthy control (n ¼ 20) using flow cytometry. Based on bleeding severity, patients were classified into 3 subgroups as mild (n ¼ 12), moderate (n ¼ 25), and severe (n ¼ 8) bleeding. T-helper lymphocytes was found to be significantly decreased in the severe bleeding group compared to the mild and moderate bleeding groups, while CD56high natural killer (NK) cells were significantly expanded in severe bleeding group. In contrast, classical, intermediate, and nonclassical monocytes, natural killer T lymphocyte (NKT), and CD56dim NK cells showed no significant changes among different patient groups. This alteration of lymphocyte and monocyte subsets was associated with significant decrease in TIM-3 expression on CD56high NK cells, T-helper lymphocytes, NKT cells, and nonclassical monocytes in patients with ITP compared to the controls. Lower level of TIM-3 was found in severe bleeding group compared to mild and moderate bleeding groups. These results indicate that TIM-3 may be involved in the pathogenesis of ITP which subsequently can represent an opportunity for new therapeutic plan, moreover. This may have a prognostic value for disease severity.
Research Authors
Asmaa M. Zahran, MD1, Mervat A. M. Youssef, MD2,
Khalid I. Elsayh, MD2, Mustafa M. Embaby, MD2, and Ahmad I. M. Ibrahim, MD2
Research Journal
Clinical and Applied Thrombosis/Hemostasis
Research Pages
NULL
Research Publisher
NULL
Research Rank
1
Research Vol
NULL
Research Website
NULL
Research Year
2017

Clinical Significance of T-Cell Immunoglobulin
Mucin 3 Expression on Peripheral Blood
Mononuclear Cells in Pediatric Acute
Immune Thrombocytopenia

Research Abstract
T-cell immunoglobulin mucin 3 (TIM-3) is a transmembrane protein that plays an important role in several autoimmune diseases. The relationship between TIM-3 and excessive immune responses in immune thrombocytopenia (ITP) is still unknown. In this study, we evaluated the relationship between the expression of TIM-3 on peripheral blood mononuclear cells in patients with ITP and the disease severity. The frequency of lymphocyte and monocyte subsets and their TIM-3 expression were evaluated in patients with acute ITP (n ¼ 45) and in healthy control (n ¼ 20) using flow cytometry. Based on bleeding severity, patients were classified into 3 subgroups as mild (n ¼ 12), moderate (n ¼ 25), and severe (n ¼ 8) bleeding. T-helper lymphocytes was found to be significantly decreased in the severe bleeding group compared to the mild and moderate bleeding groups, while CD56high natural killer (NK) cells were significantly expanded in severe bleeding group. In contrast, classical, intermediate, and nonclassical monocytes, natural killer T lymphocyte (NKT), and CD56dim NK cells showed no significant changes among different patient groups. This alteration of lymphocyte and monocyte subsets was associated with significant decrease in TIM-3 expression on CD56high NK cells, T-helper lymphocytes, NKT cells, and nonclassical monocytes in patients with ITP compared to the controls. Lower level of TIM-3 was found in severe bleeding group compared to mild and moderate bleeding groups. These results indicate that TIM-3 may be involved in the pathogenesis of ITP which subsequently can represent an opportunity for new therapeutic plan, moreover. This may have a prognostic value for disease severity.
Research Authors
Asmaa M. Zahran, MD1, Mervat A. M. Youssef, MD2,
Khalid I. Elsayh, MD2, Mustafa M. Embaby, MD2, and Ahmad I. M. Ibrahim, MD2
Research Department
Research Journal
Clinical and Applied Thrombosis/Hemostasis
Research Pages
NULL
Research Publisher
NULL
Research Rank
1
Research Vol
NULL
Research Website
NULL
Research Year
2017

Early and Delayed 99mTc-MDP SPECT/CT Findings in Rheumatoid Arthritis and Osteoarthritis

Research Abstract
We report the case of a 74-year-old man with seropositive rheu- matoid arthritis (RA) and radiographic osteoarthritis (OA) who underwent dual-phase high-resolution 99mTc-MDP SPECT/CT. Early radiotracer en- hancement was noted in 2 RA joints of the right hand, both presenting with a ring-like uptake pattern around the joint, consistent with synovitis. Insig- nificant early enhancement was noted at the first carpometacarpal joint, de- spite presentation of CT features of OA. The delayed-phase enhancement patterns were distinct, showing asymmetry in RA joints, but a symmetric, joint-centered pattern for the OA joint.
Research Authors
Abdelhafez, Y. G.
Hagge, R. J.
Badawi, R. D.
Raychaudhuri, S. P.
Chaudhari, A. J.
Research Journal
ClinicalNuclearMedicine
Research Member
Research Pages
NULL
Research Publisher
Wolters Kluwer
Research Rank
1
Research Vol
NULL
Research Website
http://journals.lww.com/nuclearmed/Abstract/publishahead/Early_and_Delayed_99mTc_MDP_SPECT_CT_Findings_in.97916.aspx
Research Year
2017

Hybrid SPECT/CT Helps Characterization and Localization of a Dual Thyroid Ectopia

Research Abstract
The presence of ectopic thyroid tissue in 2 or more different sites is rare. A 12-year-old girl presented with midline anterior neck swelling in the infrahyoid region with subclinical hypothyroidism. Thyroid scanning with 99mTc-pertechnetate was performed, and SPECT/CT was ordered for further evaluation. Two hyperdense lesions demonstrating intense ra- diotracer uptake were seen in the midline at the base of the tongue and infrahyoid neck. We emphasis the role of hybrid SPECT/CT for charac- terization and localization of suspected ectopic thyroid tissue.
Research Authors
Abdelhafez, Y.
Khalil, M.
Roshdy, E.
Diab, W. A.
Eltoni, L.
Research Journal
ClinicalNuclearMedicine
Research Pages
NULL
Research Publisher
Wolters Kluwer
Research Rank
1
Research Vol
NULL
Research Website
http://journals.lww.com/nuclearmed/fulltext/9000/00000/Hybrid_SPECT_CT_Helps_Characterization_and.97913.aspx
Research Year
2017

Hybrid SPECT/CT Helps Characterization and Localization of a Dual Thyroid Ectopia

Research Abstract
The presence of ectopic thyroid tissue in 2 or more different sites is rare. A 12-year-old girl presented with midline anterior neck swelling in the infrahyoid region with subclinical hypothyroidism. Thyroid scanning with 99mTc-pertechnetate was performed, and SPECT/CT was ordered for further evaluation. Two hyperdense lesions demonstrating intense ra- diotracer uptake were seen in the midline at the base of the tongue and infrahyoid neck. We emphasis the role of hybrid SPECT/CT for charac- terization and localization of suspected ectopic thyroid tissue.
Research Authors
Abdelhafez, Y.
Khalil, M.
Roshdy, E.
Diab, W. A.
Eltoni, L.
Research Journal
ClinicalNuclearMedicine
Research Pages
NULL
Research Publisher
Wolters Kluwer
Research Rank
1
Research Vol
NULL
Research Website
http://journals.lww.com/nuclearmed/fulltext/9000/00000/Hybrid_SPECT_CT_Helps_Characterization_and.97913.aspx
Research Year
2017

Hybrid SPECT/CT Helps Characterization and Localization of a Dual Thyroid Ectopia

Research Abstract
The presence of ectopic thyroid tissue in 2 or more different sites is rare. A 12-year-old girl presented with midline anterior neck swelling in the infrahyoid region with subclinical hypothyroidism. Thyroid scanning with 99mTc-pertechnetate was performed, and SPECT/CT was ordered for further evaluation. Two hyperdense lesions demonstrating intense ra- diotracer uptake were seen in the midline at the base of the tongue and infrahyoid neck. We emphasis the role of hybrid SPECT/CT for charac- terization and localization of suspected ectopic thyroid tissue.
Research Authors
Abdelhafez, Y.
Khalil, M.
Roshdy, E.
Diab, W. A.
Eltoni, L.
Research Journal
ClinicalNuclearMedicine
Research Pages
NULL
Research Publisher
Wolters Kluwer
Research Rank
1
Research Vol
NULL
Research Website
http://journals.lww.com/nuclearmed/fulltext/9000/00000/Hybrid_SPECT_CT_Helps_Characterization_and.97913.aspx
Research Year
2017

Hybrid SPECT/CT Helps Characterization and Localization of a Dual Thyroid Ectopia

Research Abstract
The presence of ectopic thyroid tissue in 2 or more different sites is rare. A 12-year-old girl presented with midline anterior neck swelling in the infrahyoid region with subclinical hypothyroidism. Thyroid scanning with 99mTc-pertechnetate was performed, and SPECT/CT was ordered for further evaluation. Two hyperdense lesions demonstrating intense ra- diotracer uptake were seen in the midline at the base of the tongue and infrahyoid neck. We emphasis the role of hybrid SPECT/CT for charac- terization and localization of suspected ectopic thyroid tissue.
Research Authors
Abdelhafez, Y.
Khalil, M.
Roshdy, E.
Diab, W. A.
Eltoni, L.
Research Journal
ClinicalNuclearMedicine
Research Pages
NULL
Research Publisher
Wolters Kluwer
Research Rank
1
Research Vol
NULL
Research Website
http://journals.lww.com/nuclearmed/fulltext/9000/00000/Hybrid_SPECT_CT_Helps_Characterization_and.97913.aspx
Research Year
2017

Hybrid SPECT/CT Helps Characterization and Localization of a Dual Thyroid Ectopia

Research Abstract
The presence of ectopic thyroid tissue in 2 or more different sites is rare. A 12-year-old girl presented with midline anterior neck swelling in the infrahyoid region with subclinical hypothyroidism. Thyroid scanning with 99mTc-pertechnetate was performed, and SPECT/CT was ordered for further evaluation. Two hyperdense lesions demonstrating intense ra- diotracer uptake were seen in the midline at the base of the tongue and infrahyoid neck. We emphasis the role of hybrid SPECT/CT for charac- terization and localization of suspected ectopic thyroid tissue.
Research Authors
Abdelhafez, Y.
Khalil, M.
Roshdy, E.
Diab, W. A.
Eltoni, L.
Research Journal
ClinicalNuclearMedicine
Research Member
Research Pages
NULL
Research Publisher
Wolters Kluwer
Research Rank
1
Research Vol
NULL
Research Website
http://journals.lww.com/nuclearmed/fulltext/9000/00000/Hybrid_SPECT_CT_Helps_Characterization_and.97913.aspx
Research Year
2017
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