Network models describe the direction and magnitude of interactions that exist between the various components in a system.13.
Computational modeling of biochemical networks using COPASI. It can also occur during or after a surgical procedure. The model has been modified and applied to cyclic neutropenia and thrombocytopenia, with the former validated in neutropenia found in gray collies.76, Cyclical hematopoiesis.
Others include generalized stomatitis, angular cheilitis and gingivitis. A network-based analysis of systemic inflammation in humans. This is caused by a natural defense mechanism initiated by an inflammatory response in response to the underlying chronic disease. Age-structured and two-delay models for erythropoiesis.
The equations were solved numerically and simulations of clinically relevant scenarios were run to ensure that the model's output agreed with experimental data, thus validating it and opening it for use as a predictive tool. Differentiation is the other fundamental property of hematopoietic progenitor cells and requires critical processes of cell-fate decision-making. Based on parameters that are clinically measureable, the model consists of 5 differential equations, each describing the rate of change of 1 of the 4 cell types, with the fifth describing the G-CSF production/clearance rate. The model consists of 2 differential equations, each describing the rate of change of granulocyte count and neutrophil count, along with several constraint equations that encode known physiologic properties of G-CSF/neutrophil dynamics. Regulation of transcription by hypoxia requires a multiprotein complex that includes hypoxia-inducible factor 1, an adjacent transcription factor, and p300/CREB binding protein. In addition to blood cell cancers, hematologic diseases include rare genetic disorders, anemia, conditions related to HIV, sickle cell disease, and complications from chemotherapy or transfusions. Triosephosphate isomerase (TPI) deficiency is a genetically inherited autosomal recessive condition "characterized bychronic hemolytic anemia. Mathematical models have been developed to describe the dynamics of G-CSF administration with the dual purpose of predicting an elevation in neutrophils in response to particular administration schedules and gaining insight into the function of hematopoiesis in general.
A loop structure in which 2 signals generated by a system element converge on an element downstream from this origin. Complex dynamics can arise from relatively few interacting components,17 and network maps are widely used to help visualize the interactions.
A stochastic-model for hematopoiesis in cats. Vitamin B12 deficiency anemia occurs when a "lower-than-normal" amount of the vitamin B12 is available within the body, leading to a decreased production of healthy red blood cells. Their mathematical model continues to serve as the paradigm for hematopoiesis. However, tracking rare events such as malignant transformations may require a stochastic model that allows for the occurrence of random events (also referred to as stochastic) with a certain probability.55, A cell uses complex intracellular signaling and gene regulatory networks to integrate the multiplicity of cues in its environment and to ultimately make a specific decision. Multistable and multistep dynamics in neutrophil differentiation. Acute posthemorrhagic anemia (also known as acute blood loss anemia) is a condition in which a person quickly loses a large volume of circulating hemoglobin. If the functions are kept simple it is possible to tie predictions of the model to their biologic origins. There are several kinds of anemia, produced by a variety of underlying causes. After 5 days, further treatments have no effect on total white blood cell count. Vitamin B 12 deficiency anemia due to selective vitamin B 12 malabsorption with proteinuria (also known as Imerslund-Gräsbeck syndrome) is a rare autosomal recessive disorder which requires the indefinite administration of Vitamin B12 injections. Modeling of asymmetric cell division in hematopoietic stem cells–regulation of self-renewal is essential for efficient repopulation. One of the simulations examines the erythrocyte population's response to a blood donation of 5% by volume. For rates resulting in bistable states, cell fate is a stochastic process. Boolean networks are often used to model genetic regulatory networks in which nodes are genes that can be active or inactive depending on the states of the genes (or gene products) that regulate them. Solutions to the equations indicate either the monostable or bistable production of macrophages and neutrophils, with the population composition dependent upon relative synthesis rates of several transcription factors. A mathematical model of neutrophil production and control in normal man.
At its simplest, a graph is a map of all known system components or system states and their possible interactions or transitions. Evidence that the number of hematopoietic stem cells per animal is conserved in mammals. Part 2. Gene regulatory networks directing myeloid and lymphoid cell fates within the immune system. It can affect our bloodstream, skin, lymph nodes, heart, and brain. Aplastic anemia is a condition where bone marrow does not produce sufficient new, Autoimmune hemolytic anemia (AIHA) is a type of. While the magnitude and period of the oscillation peaks vary over time for the experimental data, the model provides an imperfect but strong means for estimating erythrocyte maturation and destruction rate. The model accurately describes the effect of G-CSF saturation, where more than a certain number of injections of G-CSF have no immediate or long-term affect on neutrophil count.
Hereditary elliptocytosis (HE) (also known as ovalocytosis), is an inherited blood disorder in … Blood 2010; 115 (12): 2339–2347. For large cell numbers, such as the number of committed precursors in normal hematopoiesis, an averaged deterministic approach may be sufficient to capture the behavior of interest. It can be a serious disease if not treated early. All cellular blood components are derived from haematopoietic stem cells. Models based on heterogeneous population account for cell proliferation and loss due to death or differentiation.
Huang and associates observed that neutrophil differentiation of HL60 cells was a multistep process in a high-dimension system.56 In a follow-up paper, they showed that single cells of a bipotential cell line were heterogeneous and possessed a differentiation potential that correlated with high-level expression of PU.1 in Sca1high cells and GATA-1 in Sca1low cells. For the case of CD34+ cell donation by a healthy person, the model agrees with experimental results for all cell types except platelets. Hematological disorders may be caused by a number of infection-related conditions involving the introduction of microorganisms into the host, such as bacteria, viruses, microfilaria, fungus and protozoa. Graphs help portray topologic structures such as loops (Figure 2).
A comprehensive analysis of protein-protein interactions in Saccharomyces cerevisiae. Altered taste sensation, smooth, red painful burning sensation of tongue, filiform followed by fungiform papillae atrophy may also be seen.
A deterministic model for cyclic erythropoiesis was constructed from experimental data derived from a rabbit with auto-immune hemolytic anemia.
Megaloblastic anemia (or megaloblastic anaemia) is an anemia (of, Transcobalamin II deficiency (TCII) (also known as hereditary transcobalamin II deficiency) is a rare, Folate-deficiency anemia (also known as dietary folate-deficiency anemia) is a condition that develops when the body does not have the adequate supply of, Nutritional Megaloblastic anemia is an anemia (of. f4: Rate at which white blood cell concentration down-regulates G-CSF production. The equations are studied and solved and it is mathematically proven that, given the equations and associated physiologically defined constraints, there is exactly 1 structurally stable solution. Anemia is the most common disorder of the blood. Others can involve the formation of tumors from lymphoblasts from within the lymphoid tissue. In addition, NIDDK responds to questions and provides health information about blood diseases to people with blood diseases and to their families, health professionals, and the public via the NIDDK Health Information Center. An example of how this model can be applied can be found in elevated neutrophil counts in patients with CML. Among the fundamental questions in normal and leukemic hematopoiesis that systems biology will address are: integration of signaling pathways, circuits, and networks that determine cell fate, multiscale modeling of stem cell plasticity, synthesis of genetic and epigenetic data, global analysis of phosphoproteins, dynamics of hematopoiesis in the bone marrow microenvironment presented in 3-dimensional imaging, and cellular engineering to expand selective blood cell compartments for therapy. Scientific Foundations for the Future Physicians. For a given chemotherapy drug, there is always at least a small population of cancer cells that will exhibit drug resistance and whose growth is kept in check by the more populous, nonresistant cells.90,91 In killing the nonresistant cells, therapy removes a selection pressure and allows resistant clones to proliferate. Further work also suggests that the decrease in leukemic cell burden is biphasic, with a rapid decline in the first few months of treatment followed by a slower decline over the next 6 months. In particular, gene regulatory networks have provided great insights into lineage commitment of hematopoietic progenitors. Whereas stochastic models reflect the structure of the biologic system, statistical models are data-driven. Vitamin B12 deficiency is caused by a lack of intrinsic factor, as seen in pernicious anemia, causes a vitamin B12 deficiency. 60 (6): 1056 --, "Spur-cell hemolytic anemia in severe alcoholic cirrhosis", "Triose Phosphate Isomerase Deficiency Is Caused by Altered Dimerization–Not Catalytic Inactivity–of the Mutant Enzymes", "Blood Cancers: Leukemia, Lymphoma, and Myeloma", "Getting The Facts: Indolent Follicular Lymphoma", "Mucosa associated lymphoid tissue lymphoma presenting within a solitary anti-mesenteric dilated segment of ileum: a case report", "Complete remission of primary plasma cell leukemia with bortezomib, doxorubicin, and dexamethasone: a case report", "Combination chemotherapy with bortezomib, cyclophosphamide and dexamethasone may be effective for plasma cell leukemia", "Deficiency of protein C in congenital thrombotic disease", Transfusion-associated graft versus host disease, Refractory cytopenia with multilineage dysplasia, Adult type of generalized eruption of cutaneous mastocytosis, https://en.wikipedia.org/w/index.php?title=List_of_hematologic_conditions&oldid=976191648, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, Iron-deficiency anemia (or iron deficiency anaemia) is a common anemia that occurs when iron loss (often from intestinal bleeding or menses) occurs, and/or the dietary intake or absorption of, Plummer–Vinson syndrome (PVS), also called Paterson–Brown–Kelly syndrome or sideropenic dysphagia presents as a triad of. The probability of birth was 60%, death 40%, the decision for each cell was performed by picking a random number 0 to 9 with 7 of these numbers (0-5) resulting in symmetric division and 3 (6-9) resulting in stem cell loss due to differentiation. We will introduce key concepts, terms, and models of systems biology (for a glossary, see Appendix at the end of the article) and discuss how systems biology is enhancing our understanding of the pathophysiology and treatment of blood disorders.
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Computational modeling of biochemical networks using COPASI. It can also occur during or after a surgical procedure. The model has been modified and applied to cyclic neutropenia and thrombocytopenia, with the former validated in neutropenia found in gray collies.76, Cyclical hematopoiesis.
Others include generalized stomatitis, angular cheilitis and gingivitis. A network-based analysis of systemic inflammation in humans. This is caused by a natural defense mechanism initiated by an inflammatory response in response to the underlying chronic disease. Age-structured and two-delay models for erythropoiesis.
The equations were solved numerically and simulations of clinically relevant scenarios were run to ensure that the model's output agreed with experimental data, thus validating it and opening it for use as a predictive tool. Differentiation is the other fundamental property of hematopoietic progenitor cells and requires critical processes of cell-fate decision-making. Based on parameters that are clinically measureable, the model consists of 5 differential equations, each describing the rate of change of 1 of the 4 cell types, with the fifth describing the G-CSF production/clearance rate. The model consists of 2 differential equations, each describing the rate of change of granulocyte count and neutrophil count, along with several constraint equations that encode known physiologic properties of G-CSF/neutrophil dynamics. Regulation of transcription by hypoxia requires a multiprotein complex that includes hypoxia-inducible factor 1, an adjacent transcription factor, and p300/CREB binding protein. In addition to blood cell cancers, hematologic diseases include rare genetic disorders, anemia, conditions related to HIV, sickle cell disease, and complications from chemotherapy or transfusions. Triosephosphate isomerase (TPI) deficiency is a genetically inherited autosomal recessive condition "characterized bychronic hemolytic anemia. Mathematical models have been developed to describe the dynamics of G-CSF administration with the dual purpose of predicting an elevation in neutrophils in response to particular administration schedules and gaining insight into the function of hematopoiesis in general.
A loop structure in which 2 signals generated by a system element converge on an element downstream from this origin. Complex dynamics can arise from relatively few interacting components,17 and network maps are widely used to help visualize the interactions.
A stochastic-model for hematopoiesis in cats. Vitamin B12 deficiency anemia occurs when a "lower-than-normal" amount of the vitamin B12 is available within the body, leading to a decreased production of healthy red blood cells. Their mathematical model continues to serve as the paradigm for hematopoiesis. However, tracking rare events such as malignant transformations may require a stochastic model that allows for the occurrence of random events (also referred to as stochastic) with a certain probability.55, A cell uses complex intracellular signaling and gene regulatory networks to integrate the multiplicity of cues in its environment and to ultimately make a specific decision. Multistable and multistep dynamics in neutrophil differentiation. Acute posthemorrhagic anemia (also known as acute blood loss anemia) is a condition in which a person quickly loses a large volume of circulating hemoglobin. If the functions are kept simple it is possible to tie predictions of the model to their biologic origins. There are several kinds of anemia, produced by a variety of underlying causes. After 5 days, further treatments have no effect on total white blood cell count. Vitamin B 12 deficiency anemia due to selective vitamin B 12 malabsorption with proteinuria (also known as Imerslund-Gräsbeck syndrome) is a rare autosomal recessive disorder which requires the indefinite administration of Vitamin B12 injections. Modeling of asymmetric cell division in hematopoietic stem cells–regulation of self-renewal is essential for efficient repopulation. One of the simulations examines the erythrocyte population's response to a blood donation of 5% by volume. For rates resulting in bistable states, cell fate is a stochastic process. Boolean networks are often used to model genetic regulatory networks in which nodes are genes that can be active or inactive depending on the states of the genes (or gene products) that regulate them. Solutions to the equations indicate either the monostable or bistable production of macrophages and neutrophils, with the population composition dependent upon relative synthesis rates of several transcription factors. A mathematical model of neutrophil production and control in normal man.
At its simplest, a graph is a map of all known system components or system states and their possible interactions or transitions. Evidence that the number of hematopoietic stem cells per animal is conserved in mammals. Part 2. Gene regulatory networks directing myeloid and lymphoid cell fates within the immune system. It can affect our bloodstream, skin, lymph nodes, heart, and brain. Aplastic anemia is a condition where bone marrow does not produce sufficient new, Autoimmune hemolytic anemia (AIHA) is a type of. While the magnitude and period of the oscillation peaks vary over time for the experimental data, the model provides an imperfect but strong means for estimating erythrocyte maturation and destruction rate. The model accurately describes the effect of G-CSF saturation, where more than a certain number of injections of G-CSF have no immediate or long-term affect on neutrophil count.
Hereditary elliptocytosis (HE) (also known as ovalocytosis), is an inherited blood disorder in … Blood 2010; 115 (12): 2339–2347. For large cell numbers, such as the number of committed precursors in normal hematopoiesis, an averaged deterministic approach may be sufficient to capture the behavior of interest. It can be a serious disease if not treated early. All cellular blood components are derived from haematopoietic stem cells. Models based on heterogeneous population account for cell proliferation and loss due to death or differentiation.
Huang and associates observed that neutrophil differentiation of HL60 cells was a multistep process in a high-dimension system.56 In a follow-up paper, they showed that single cells of a bipotential cell line were heterogeneous and possessed a differentiation potential that correlated with high-level expression of PU.1 in Sca1high cells and GATA-1 in Sca1low cells. For the case of CD34+ cell donation by a healthy person, the model agrees with experimental results for all cell types except platelets. Hematological disorders may be caused by a number of infection-related conditions involving the introduction of microorganisms into the host, such as bacteria, viruses, microfilaria, fungus and protozoa. Graphs help portray topologic structures such as loops (Figure 2).
A comprehensive analysis of protein-protein interactions in Saccharomyces cerevisiae. Altered taste sensation, smooth, red painful burning sensation of tongue, filiform followed by fungiform papillae atrophy may also be seen.
A deterministic model for cyclic erythropoiesis was constructed from experimental data derived from a rabbit with auto-immune hemolytic anemia.
Megaloblastic anemia (or megaloblastic anaemia) is an anemia (of, Transcobalamin II deficiency (TCII) (also known as hereditary transcobalamin II deficiency) is a rare, Folate-deficiency anemia (also known as dietary folate-deficiency anemia) is a condition that develops when the body does not have the adequate supply of, Nutritional Megaloblastic anemia is an anemia (of. f4: Rate at which white blood cell concentration down-regulates G-CSF production. The equations are studied and solved and it is mathematically proven that, given the equations and associated physiologically defined constraints, there is exactly 1 structurally stable solution. Anemia is the most common disorder of the blood. Others can involve the formation of tumors from lymphoblasts from within the lymphoid tissue. In addition, NIDDK responds to questions and provides health information about blood diseases to people with blood diseases and to their families, health professionals, and the public via the NIDDK Health Information Center. An example of how this model can be applied can be found in elevated neutrophil counts in patients with CML. Among the fundamental questions in normal and leukemic hematopoiesis that systems biology will address are: integration of signaling pathways, circuits, and networks that determine cell fate, multiscale modeling of stem cell plasticity, synthesis of genetic and epigenetic data, global analysis of phosphoproteins, dynamics of hematopoiesis in the bone marrow microenvironment presented in 3-dimensional imaging, and cellular engineering to expand selective blood cell compartments for therapy. Scientific Foundations for the Future Physicians. For a given chemotherapy drug, there is always at least a small population of cancer cells that will exhibit drug resistance and whose growth is kept in check by the more populous, nonresistant cells.90,91 In killing the nonresistant cells, therapy removes a selection pressure and allows resistant clones to proliferate. Further work also suggests that the decrease in leukemic cell burden is biphasic, with a rapid decline in the first few months of treatment followed by a slower decline over the next 6 months. In particular, gene regulatory networks have provided great insights into lineage commitment of hematopoietic progenitors. Whereas stochastic models reflect the structure of the biologic system, statistical models are data-driven. Vitamin B12 deficiency is caused by a lack of intrinsic factor, as seen in pernicious anemia, causes a vitamin B12 deficiency. 60 (6): 1056 --, "Spur-cell hemolytic anemia in severe alcoholic cirrhosis", "Triose Phosphate Isomerase Deficiency Is Caused by Altered Dimerization–Not Catalytic Inactivity–of the Mutant Enzymes", "Blood Cancers: Leukemia, Lymphoma, and Myeloma", "Getting The Facts: Indolent Follicular Lymphoma", "Mucosa associated lymphoid tissue lymphoma presenting within a solitary anti-mesenteric dilated segment of ileum: a case report", "Complete remission of primary plasma cell leukemia with bortezomib, doxorubicin, and dexamethasone: a case report", "Combination chemotherapy with bortezomib, cyclophosphamide and dexamethasone may be effective for plasma cell leukemia", "Deficiency of protein C in congenital thrombotic disease", Transfusion-associated graft versus host disease, Refractory cytopenia with multilineage dysplasia, Adult type of generalized eruption of cutaneous mastocytosis, https://en.wikipedia.org/w/index.php?title=List_of_hematologic_conditions&oldid=976191648, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, Iron-deficiency anemia (or iron deficiency anaemia) is a common anemia that occurs when iron loss (often from intestinal bleeding or menses) occurs, and/or the dietary intake or absorption of, Plummer–Vinson syndrome (PVS), also called Paterson–Brown–Kelly syndrome or sideropenic dysphagia presents as a triad of. The probability of birth was 60%, death 40%, the decision for each cell was performed by picking a random number 0 to 9 with 7 of these numbers (0-5) resulting in symmetric division and 3 (6-9) resulting in stem cell loss due to differentiation. We will introduce key concepts, terms, and models of systems biology (for a glossary, see Appendix at the end of the article) and discuss how systems biology is enhancing our understanding of the pathophysiology and treatment of blood disorders.
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