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- https://med.libretexts.org/Bookshelves/Nutrition/Principles_of_Nutritional_Assessment_3e_(Gibson_et_al.)/27%3A_Copper_(Chapter_24b)/27.05%3A_Cytochrome_c_oxidase_(24b.4)This page discusses cytochrome c oxidase's role in cellular respiration and its potential as an indicator of copper status in blood cells. Reduced enzyme activity is linked to copper deficiency and ge...This page discusses cytochrome c oxidase's role in cellular respiration and its potential as an indicator of copper status in blood cells. Reduced enzyme activity is linked to copper deficiency and genetic disorders, suggesting health risks. Platelet levels may reflect changes in copper intake, with activity influenced by age, sex, and health conditions.
- https://med.libretexts.org/Bookshelves/Nutrition/Principles_of_Nutritional_Assessment_3e_(Gibson_et_al.)/17%3A_Vitamin_C_(Chapater_19)/17.14%3A_Functional_tests_of_vitamin_C_status_(19.14)This page discusses the lack of reliable functional tests for assessing vitamin C status, pointing out that capillary fragility is not effective, while erythrocyte fragility is nonspecific. Proposed m...This page discusses the lack of reliable functional tests for assessing vitamin C status, pointing out that capillary fragility is not effective, while erythrocyte fragility is nonspecific. Proposed markers include collagen cross-linking and vitamin C-dependent epigenetic marks in leukocyte DNA. Preliminary studies indicate potential correlations between vitamin C status and epigenetic modifications, highlighting the need for further research.
- https://med.libretexts.org/Bookshelves/Nutrition/Principles_of_Nutritional_Assessment_3e_(Gibson_et_al.)/17%3A_Vitamin_C_(Chapater_19)/17.12%3A_Ascorbic_acid_in_other_cells_and_fluids_(19.12)This page discusses the varying concentrations of ascorbic acid (vitamin C) in body fluids, revealing low levels in saliva and alveolar lining fluid that do not reflect plasma or dietary intake. Notab...This page discusses the varying concentrations of ascorbic acid (vitamin C) in body fluids, revealing low levels in saliva and alveolar lining fluid that do not reflect plasma or dietary intake. Notably, cerebrospinal fluid contains higher levels, indicating its importance in the central nervous system. Seminal fluid may have elevated levels, with lower concentrations in infertile men associated with oxidative stress.
- https://med.libretexts.org/Courses/Virginia_Tech_Carilion_School_of_Medicine/Block_V_Preparation_Materials/07%3A_Innate_Nonspecific_Host_Defenses/7.03%3A_Cellular_DefensesThe formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune respons...The formed elements of the blood include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Of these, leukocytes are primarily involved in the immune response. All formed elements originate in the bone marrow as stem cells (HSCs) that differentiate through hematopoiesis. Granulocytes are leukocytes characterized by a lobed nucleus and granules in the cytoplasm. These include neutrophils (PMNs), eosinophils, and basophils.
- https://med.libretexts.org/Bookshelves/Nutrition/Principles_of_Nutritional_Assessment_3e_(Gibson_et_al.)/28%3A_Zinc_(Chapter_24c)/28.16%3A_Leukocyte_zinc_(24c.16)This page discusses the zinc levels in leukocytes, noting that they are higher than in erythrocytes, particularly in monocytes and lymphocytes. However, the BOND Zinc Expert Panel considers leukocyte ...This page discusses the zinc levels in leukocytes, noting that they are higher than in erythrocytes, particularly in monocytes and lymphocytes. However, the BOND Zinc Expert Panel considers leukocyte zinc levels unreliable for assessing zinc nutrition due to inconsistent results, methodological issues, potential contamination, insufficient blood volume requirements for testing, and unclear interpretive criteria.
- https://med.libretexts.org/Bookshelves/Nursing/Medical-Surgical_Nursing_(OpenStax)/16%3A_Hematopoietic_Disorders_and_Regulation/16.00%3A_IntroductionThe text explains the importance of understanding hematology for nursing care, as blood samples are essential for diagnosing a patient's condition. It highlights the components of blood???plasma, eryt...The text explains the importance of understanding hematology for nursing care, as blood samples are essential for diagnosing a patient's condition. It highlights the components of blood???plasma, erythrocytes, leukocytes, and platelets???and their roles, emphasizing their significance in maintaining health and homeostasis. The discussion covers hematological disorders, their pathophysiology, and appropriate nursing treatments, underscoring blood's impact on all body systems.
