Search results for "Globin"
showing 10 items of 734 documents
Nitric oxide is formed in a subpopulation of rat pineal cells and acts as an intercellular messenger.
1998
In the rat pineal, formation of the second messenger cyclic GMP (cGMP) is under adrenergic control. Two important sequential steps mediate adrenergic signal transduction by cGMP, receptor-stimulated nitric oxide (NO) formation by the enzyme NO synthase I (NOS I), and NO-induced cGMP formation by the cytosolic enzyme guanylyl cyclase. With regard to the first step in cGMP transduction (i.e. NO formation) we found, by means of NOS I immunostaining and NADPH-diaphorase staining, that the presence of NOS I was restricted to a subpopulation of pineal cells, generally surrounded by NOS I-negative cells. Considering the fact that NO is able to permeate the cell membrane, the question arises whethe…
Hemoglobin, C-reactive protein and ferritin in patients with oral carcinoma and their clinical significance – A prospective clinical study
2017
For oral squamous cell carcinoma (OSCC), biomarkers are much in need to predict prognosis and to overcome possible resistance mechanisms to adjuvant therapies. The aim of this study was to evaluate serum level of hemoglobin, C-reactive protein (CRP) and ferritin as possible liquid biopsy to predict survival, metastasis and tumor relapse of OSCC.A prospective clinical study was conducted. Overall, serum levels of hemoglobin, CRP and ferritin in 82 OSCC patients and 63 controls were preoperatively investigated.Patients with an anemia showed a significant lower survival than patients with no anemia preoperative. Patients with T3/T4 cancer had significant lower hemoglobin values (p = 0.002). CR…
Tumor Oxygenation in Anemic Rats: Effects of Erythropoietin Treatment Versus Red Blood Cell Transfusion
1995
Anemia was induced in rats by the development of a hemorrhagic ascites. These animals also bore solid tumors (DS-sarcomas) on the hind foot dorsum. The effects of two methods for anemia correction on oxygenation in the solid tumors were compared in this study. Anemia was corrected either chronically by erythropoietin administration (1000 IU/kg) over 14 days (EPO) or acutely by transfusion with red blood cells (TR). Non-anemic and untreated anemic animals served as controls. Tumor oxygenation was determined in anesthetized animals using polarographic needle electrodes and pO2 histography. The reduction in hematocrit and hemoglobin content found in anemic animals could successfully be correct…
Demographic responses to oxidative stress and inflammation in the wandering albatross (Diomedea exulans).
2015
12 pages; International audience; One of the major challenges in ecological research is the elucidation of physiological mechanisms that underlie the demographic traits of wild animals. We have assessed whether a marker of plasma oxidative stress (TBARS) and plasma haptoglobin (protein of the acute inflammatory phase response) measured at time t predict five demographic parameters (survival rate, return rate to the breeding colony, breeding probability, hatching and fledging success) in sexually mature wandering albatrosses over the next four years (Diomedea exulans) using a five-year individual-based dataset. Non-breeder males, but not females, having higher TBARS at time t had reduced fut…
Blood Transfusion in Elderly Patients with Acute Myocardial Infarction: Data from the RICO Survey.
2017
Red blood cell transfusion benefit during acute myocardial infarction remains unclear in the elderly. We aimed to assess the transfusion impact on 1-year mortality in acute myocardial infarction patients aged ≥65 years, according to their age and hemoglobin nadir.We included 3316 consecutive patients with acute myocardial infarction aged ≥65 years from the "obseRvatoire des Infarctus de Côte d'Or" (RICO) survey. They were categorized according to their hemoglobin nadir (≤8,8 to ≤10, and10 g/dL) and age (80 or ≥80 years).A total of 1906 patients (57%) were 65-79 years old, and 1410 (43%) were aged ≥80 years, of whom 103 (5%) and 145 (10%) patients received red blood cell transfusion, respect…
Effects of red blood cell transfusion on anemia-related symptoms in patients with cancer.
2009
The aim of this study was to assess the effects of red blood cell transfusion, and the subsequent increase in hemoglobin values, on anemia-related symptoms in a cohort of patients with cancer with different survival times. A red blood cell transfusion was recommended to a consecutive sample of patients with hemoglobin levels of 8 +/- 0.5 g/dL. The number of units to be ordered was decided according the hemoglobin values with a mean target of increasing the hemoglobin values by approximately 2 g/dL. Hemoglobin values, anemia-related signs and symptoms, including well-being, fatigue, and dyspnea, were recorded at admission (T0), 1 day after the last transfusion (T1), and 15 days afterward (T2…
Baseline factors affecting closure of venous leg ulcers
2017
Objective: The objective of this study was to characterize factors associated with closure of venous leg ulcers (VLUs) in a pooled analysis of subjects from three randomized clinical trials. Methods: Closure of VLUs after treatment with HP802-247, an allogeneic living cell therapy consisting of growth-arrested human keratinocytes and fibroblasts, vs standard therapy with compression bandaging was evaluated in three phase 3 clinical trials of similar design. Two trials enrolled subjects with VLUs ranging from 2 cm2 to 12 cm2 in area with 12-week treatment periods; the third trial enrolled subjects with VLUs between >12 cm2 and #36 cm2 with a 16-week treatment period. The first trial went to …
Glycemic Dysregulations Are Associated With Worsening Cognitive Function in Older Participants at High Risk of Cardiovascular Disease: Two-Year Follo…
2021
The authors wish to thank the PREDIMED-Plus participants and staff for their engagement, as well as to the primary care centers involved in the study. We also thank the Cerca Programme of the Generalitat de Catalunya, and the CIBEROBN, CIBERESP and CIBERDEM initiatives of Instituto de Salud Carlos III in Spain, and the collaborators in the PRIME consortium for helpful input. The first version of the present article has been published in the public repository Research Square as a preprint publication of our work (44). We particularly thank Stephanie Nishi for her assistance with manuscript language revision.
The influence of hemoglobin A1c levels on cardiovascular events and all-cause mortality in people with diabetes over 70 years of age. A prospective s…
2019
Abstract Aim Glycated hemoglobin A1c (HbA1c) is a reliable risk factor of cardiovascular diseases in diabetic patients, but information about this relationship in elderly patients is scarce. The aim of this study is to analyze, the relationship between HbA1c levels and the risk of mayor adverse cardiovascular events (MACE) in patients with diabetes over 70 years. Methods Prospective study of subjects with diabetes using electronic health records from the universal public health system in the Valencian Community, Spain, 2008–2012. We included men and women aged ≥ 70 years with diabetes who underwent routine health examinations in primary care. Primary endpoint was the incidence of MACE: all-…
Cardiovascular risk profile and morbidity in subjects affected by type 2 diabetes mellitus with and without diabetic foot
2007
Diabetic foot syndrome (DFS) is the most frequent cause of hospitalization of diabetic patients and one of the most economically demanding complications of diabetes. People with diabetes have been shown to have higher mortality than people without diabetes. On this basis, the aim of our study was to evaluate the possible role of diabetic foot as a cardiovascular risk marker in patients with type 2 diabetes mellitus. We enrolled 102 consecutive patients with type 2 diabetes mellitus with diabetic foot and 123 patients with type 2 diabetes mellitus without limb lesions to compare the prevalence of main cardiovascular risk factors, subclinical cardiovascular disease, previous cardiovascular mo…