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1.
BMC Public Health ; 23(1): 856, 2023 05 11.
Artigo em Inglês | MEDLINE | ID: mdl-37170116

RESUMO

BACKGROUND: Despite unprecedented socio-economic growth experienced by Indians in the past few decades, and a long history of anti-anaemia public health measures, prevalence of anaemia in Indian non-pregnant women of reproductive age group (NPWRA) has not declined. This warrants a firm understanding of what explains the anaemia situation over time, preferably by sub-populations. Therefore, we aimed to examine the trends of anaemia in tribal NPWRA (least privileged) and compare with the trends in the NPWRA of general caste (most privileged) between 1998 to 2021. Additionally, the study also explored explanation of any decline and tribal/general narrowing of these trends. METHODS: We studied four rounds of National Family Health Survey (1998-99, 2005-06, 2015-16, 2019-21). We examined the trend of anaemia (haemoglobin < 12 g/dl) and its possible determinants in tribal and general NPWRA and estimated the portion of "decline" and "narrowing" that could be explained by the underlying and intermediate determinants (wealth, education, residence, parity and food security) using multiple logistic regression. RESULTS: The distribution of determinants improved over 23 years in both the groups but more in tribals. But anaemia either remained unchanged or increased in both except 7.1 points decline in tribals between 2006-2016, leading also to 7 points narrowing of tribal/general gap. The modest attenuation of beta coefficients representing the change of anaemia prevalence (log of odds) in tribals from -0.314(-0.377, -0.251) to -0.242(-0.308, -0.176) after adjustment with determinants could explain only 23% of the decline. Similarly, only 7% of the narrowing of the tribal/general anaemia gap could be explained. CONCLUSIONS: The structural determinants wealth, education, food security, parity and urban amenities improved immensely in India but anaemia did not decline in this 23-year period. This implies that the "usual suspects" - the structural determinants are not the main drivers of anaemia in the country. The main driver may be absolute and/or functional deficiency status of micronutrients including iron attributable to inadequate uptake and absorption of these elements from Indian diets; and therefore, their effects are noticeable in every socio-economic stratum of India. Future research for aetiologies and new interventions for anaemia alleviation in India may focus on these factors.


Assuntos
Anemia , Gravidez , Humanos , Feminino , Anemia/epidemiologia , Anemia/etiologia , Classe Social , Hemoglobinas/análise , Paridade , Índia/epidemiologia , Prevalência
2.
Front Immunol ; 14: 1177432, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37143662

RESUMO

Introduction: Anemia frequently affects people living with HIV (PLHIV). Nevertheless, the impact of anemia on treatment outcomes of patients with HIV-associated tuberculosis (TB) and the underlying molecular profiles are not fully characterized. The aim of this study was to investigate the interplay between anemia, the systemic inflammatory profile, dissemination of TB and death in HIV-TB patients in an ad hoc analysis of results from a prospective cohort study. Methods: 496 hospitalized PLHIV ≥18 years old, with CD4 count <350 cells/µL and high clinical suspicion of new TB infection were enrolled in Cape Town between 2014-2016. Patients were classified according to anemia severity in non-anemic, mild, moderate, or severe anemia. Clinical, microbiologic, and immunologic data were collected at baseline. Hierarchical cluster analysis, degree of inflammatory perturbation, survival curves and C-statistics analyses were performed. Results: Through the analysis of several clinical and laboratory parameters, we observed that those with severe anemia exhibited greater systemic inflammation, characterized by high concentrations of IL-8, IL-1RA and IL-6. Furthermore, severe anemia was associated with a higher Mtb dissemination score and a higher risk of death, particularly within 7 days of admission. Most of the patients who died had severe anemia and had a more pronounced systemic inflammatory profile. Discussion: Therefore, the results presented here reveal that severe anemia is associated with greater TB dissemination and increased risk of death in PLHIV. Early identification of such patients through measurement of Hb levels may drive closer monitoring to reduce mortality. Future investigations are warranted to test whether early interventions impact survival of this vulnerable population.


Assuntos
Anemia , Infecções por HIV , Tuberculose , Humanos , Adolescente , Infecções por HIV/tratamento farmacológico , Estudos Prospectivos , África do Sul/epidemiologia , Tuberculose/microbiologia , Inflamação/complicações , Anemia/etiologia
5.
Ter Arkh ; 94(12): 1349-1354, 2023 Jan 16.
Artigo em Russo | MEDLINE | ID: mdl-37167177

RESUMO

Anemia of chronic diseases is a condition, that accompanies several chronic conditions, that have inflammation as an underlying cause. The article covers current concepts of pathogenesis, evaluation and treatment of this type of anemia. The new perspectives in the development of investigational methods and treatment are discussed. The new methods of iron deficiency assessment in patients with systemic inflammation are discussed separately.


Assuntos
Anemia , Ferro , Humanos , Hepcidinas , Eritropoese , Anemia/diagnóstico , Anemia/etiologia , Anemia/terapia , Doença Crônica , Inflamação/diagnóstico
6.
JAAPA ; 36(6): 17-21, 2023 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-37163704

RESUMO

ABSTRACT: Myelodysplastic syndromes (MDS) can present as a cytopenia-often as unexplained anemia. Because MDS can progress to acute myelogenous leukemia, primary care providers should be aware of the signs and symptoms, which are associated with the corresponding cytopenia that patients experience and may include fatigue, infection, easy bruising, and bleeding. Treatment options center on managing related cytopenias. The only cure, stem cell transplant, is not readily available.


Assuntos
Anemia , Síndromes Mielodisplásicas , Humanos , Síndromes Mielodisplásicas/complicações , Síndromes Mielodisplásicas/diagnóstico , Síndromes Mielodisplásicas/terapia , Anemia/etiologia , Anemia/terapia , Fadiga
7.
Medicine (Baltimore) ; 102(21): e33868, 2023 May 26.
Artigo em Inglês | MEDLINE | ID: mdl-37233415

RESUMO

RATIONAL: Collagenous gastritis (CG) is rarely encountered in clinical practice. Here, we reported a case of CG with iron-deficiency anemia as the main symptom. PATIENT CONCERNS: The patient was a 26-year-old woman who sought medical advice with a chief complaint of recurrent upper abdominal distention and anemia since the last 3 years. DIAGNOSES: Gastroscopy at admission showed diffuse nodular mucosa. The pathology showed the formation of a belt hyperplasia of collagen in the superficial mucosa along with the infiltration of inflammatory cells. The subepithelial collagen band was 17.68 to 35.73-µm thick and tested positive for Masson staining, thereby confirming the diagnosis of CG. INTERVENTIONS: A polysaccharide iron complex capsule was given in a dosage of 0.3 t.i.d., p.o. in combination with an omeprazole capsule (20 mg q.d. p.o). OUTCOMES: The symptoms (upper abdominal distention and anemia) were ameliorated after 8-week treatment. Blood routine showed that the hemoglobin level rose to 91 g/L. LESSONS: It is difficult to diagnose CG. Hence, a comprehensive examination based on clinical manifestations, endoscopic findings, and pathological features is required.


Assuntos
Anemia , Gastrite , Síndromes de Malabsorção , Feminino , Humanos , Adulto , Gastrite/diagnóstico , Gastrite/tratamento farmacológico , Gastrite/patologia , Gastroscopia , Colágeno , Mucosa/patologia , Anemia/etiologia , Mucosa Gástrica/patologia
8.
Medicina (Kaunas) ; 59(5)2023 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-37241106

RESUMO

Background and Objectives: Menorrhagia is defined as a blood loss of more than 80 mL, which is significant enough to cause anemia. Previously known methods for evaluating menorrhagia, such as the alkalin-hematin method, pictograms, and measuring the weight of sanitary products, were all impractical, complex, and time-consuming. Therefore, this study aimed to determine which item among menstrual history taking was most associated with menorrhagia and devised a simple evaluating method for menorrhagia through history taking that can be applied clinically. Materials and Methods: The study was conducted from June 2019 to December 2021. A survey was conducted on premenopausal women who underwent outpatient treatment or surgery and those who underwent a gynecologic screening test, and their blood tests were analyzed. The presence of iron deficiency anemia was identified with a Hb level of less than 10 g/dL with microcytic hypochromic anemia on a complete blood count performed within one month of the survey. A questionnaire survey was conducted on six items related to menorrhagia to investigate whether each item was related to "significant menorrhagia". Results: There were 301 participants in the survey during the period. In univariate analysis, the results revealed a statistically significant association between significant menorrhagia and the following items: self-judgement of menorrhagia; menstruation lasting over 7 days; total pad counts in a single menstrual period; Number of sanitary products changed per day; and leakaging of menstrual blood and presence of coagulated menstrual blood. In multivariate analysis, only the "self-judgement of menorrhagia" item showed a statistically significant result (p-value = 0.035; an odds ratio = 2.217). When the "self-judgement of menorrhagia" item was excluded, the "passage of clots larger than one inch in diameter" item showed a statistically significant result (p-value = 0.023; an odds ratio = 2.113). Conclusions: "Patient self-judgement of menorrhagia" is a reliable item for evaluating menorrhagia. Among several symptoms indicating menorrhagia, determining the presence of the "passage of clots larger than one inch in diameter" during the menstrual period is the most useful item for evaluating menorrhagia in clinical history taking. This study suggested using these simple menstrual history taking items to evaluate menorrhagia in real clinical practice.


Assuntos
Anemia , Menorragia , Humanos , Feminino , Menorragia/etiologia , Julgamento , Anemia/etiologia , Contagem de Células Sanguíneas , Inquéritos e Questionários
9.
Viruses ; 15(5)2023 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-37243210

RESUMO

Parvovirus B19 (B19V) infection varies clinically depending on the host's immune status. Due to red blood cell precursors tropism, B19V can cause chronic anemia and transient aplastic crisis in patients with immunosuppression or chronic hemolysis. We report three rare cases of Brazilian adults living with human immunodeficiency virus (HIV) with B19V infection. All cases presented severe anemia and required red blood cell transfusions. The first patient had low CD4+ counts and was treated with intravenous immunoglobulin (IVIG). As he remained poorly adherent to antiretroviral therapy (ART), B19V detection persisted. The second patient had sudden pancytopenia despite being on ART with an undetectable HIV viral load. He had historically low CD4+ counts, fully responded to IVIG, and had undiagnosed hereditary spherocytosis. The third individual was recently diagnosed with HIV and tuberculosis (TB). One month after ART initiation, he was hospitalized with anemia aggravation and cholestatic hepatitis. An analysis of his serum revealed B19V DNA and anti-B19V IgG, corroborating bone marrow findings and a persistent B19V infection. The symptoms resolved and B19V became undetectable. In all cases, real time PCR was essential for diagnosing B19V. Our findings showed that adherence to ART was crucial to B19V clearance in HIV-patients and highlighted the importance of the early recognition of B19V disease in unexplained cytopenias.


Assuntos
Síndrome de Imunodeficiência Adquirida , Anemia , Eritema Infeccioso , Infecções por HIV , Infecções por Parvoviridae , Parvovirus B19 Humano , Masculino , Humanos , Adulto , HIV/genética , Imunoglobulinas Intravenosas , Infecções por Parvoviridae/complicações , Infecções por Parvoviridae/diagnóstico , Anemia/diagnóstico , Anemia/etiologia , Parvovirus B19 Humano/genética , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , DNA Viral/análise
10.
Kidney Int ; 103(6): 1025-1027, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37210194

RESUMO

The aim of any treatment should be to add life to years and not simply years to life. Surprisingly, the label of erythropoiesis-stimulating agents for anemia treatment in chronic kidney disease does not include the indication for improving quality of life. Merit of the placebo-controlled Anemia Studies in Chronic Kidney Disease (CKD): Erythropoiesis Via a Novel Prolyl Hydroxylase Inhibitor (PHI) Daprodustat in Non-Dialysis Subjects Evaluating Hemoglobin (Hgb) and Quality of Life (ASCEND-NHQ) trial was to address this issue by analyzing the effect of anemia treatment with daprodustat aimed at the hemoglobin target range of 11-12 g/dl; the trial demonstrates that partial anemia correction improved quality of life.


Assuntos
Anemia , Hematínicos , Insuficiência Renal Crônica , Humanos , Qualidade de Vida , Objetivos , Anemia/tratamento farmacológico , Anemia/etiologia , Insuficiência Renal Crônica/terapia , Hemoglobinas/análise , Hematínicos/uso terapêutico
11.
Ter Arkh ; 95(1): 32-37, 2023 Feb 24.
Artigo em Russo | MEDLINE | ID: mdl-37167113

RESUMO

AIM: To study relationship between anemia and health-related quality of life (HRQOL) of chronic kidney disease stage 5 patients (CKD) undergoing renal replacement therapy by programmed hemodialysis. MATERIALS AND METHODS: The study was conducted on the basis of dialysis centers/departments in Moscow. The Russian-language version of the KDQOL-SFTM questionnaire, validated in Russia, was used to assess the HRQOL of patients on hemodialysis. A total of 723 patients were interviewed. Hemoglobin (Hb) levels were assessed in 442 patients based on outpatient records. To identify the relationship between Hb level and HRQOL scales, a correlation analysis was performed, as well as a HRQOL analysis in the three groups differing in hemoglobin levels (<100; 100-120 and >120 g/l). Statistical data processing was carried by SPSS.22 and using parametric and nonparametric statistical methods. RESULTS: Correlation relationship was revealed between Hb and HRQOL of patients on hemodialysis on the scales "symptoms/problems", "pain", "vital activity, energy" and "total physical component of health". According to the scales "symptoms/problems" and "vital activity, energy", higher rates were noted among patients with Hb higher than the target level, which confirms the recommendations concerning the possibility of achieving higher Hb among individual patients who have not serious concomitant diseases and cardiovascular complications in order to improve their quality of life. CONCLUSION: HRQOL assessment is important tool for planning and evaluating the effectiveness of anemia drug therapy among patients with CKD on hemodialysis.


Assuntos
Anemia , Falência Renal Crônica , Insuficiência Renal Crônica , Humanos , Qualidade de Vida , Diálise Renal/efeitos adversos , Diálise Renal/métodos , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/terapia , Falência Renal Crônica/complicações , Anemia/epidemiologia , Anemia/etiologia , Anemia/terapia , Hemoglobinas/uso terapêutico
12.
Malar J ; 22(1): 130, 2023 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-37087435

RESUMO

BACKGROUND: In malaria-endemic areas, children presenting to hospitals with a decreased level of consciousness remain a diagnostic dilemma. The definition of cerebral malaria in a comatose child demands exclusion of other possible reasons, which requires in-depth investigations that are not easily available. The aim of this study was to investigate the frequency and clinical characteristics of PCR-confirmed malaria in a cohort of children with a decreased level of consciousness, look for potential features that would aid in differentiating children with malaria from those without, and assess the performance of traditional thick film microscopy against the cytb-qPCR-method. METHODS: A total of 345 children aged 30 days-15 years old, presenting to Hospital Pediátrico David Bernardino in Luanda, Angola, with a decreased level of consciousness (Glasgow coma scale score < 15) were prospectively enrolled during 2014-2017. Malaria was defined as a positive cytb-qPCR result on any occasion in hospital. The clinical course and laboratory parameters were compared between children with malaria and those without. The performance of thick film microscopy was analysed against the PCR method. RESULTS: 161 of 345 children (46.7%) had a positive malaria PCR test result. All cases were Plasmodium falciparum species, and 82.6% (133/161) fulfilled the WHO criteria for severe malaria. Overall, children with malaria presented to hospital with a shorter duration of symptoms and less convulsions pre-admission compared to those without malaria. The median GCS score on admission was 8, which did not differ between children with or without malaria. Clinical findings on admission were mostly similar across the whole cohort, but an infection focus outside the central nervous system was more common in malaria-negative children. Moreover, severe anaemia, thrombocytopenia, and high CRP levels occurred more frequently in children with malaria. The case fatality ratio was 28.5% (91/319) and did not differ between parasitaemic children and those without malaria, although parasitaemic children died sooner after hospital admission. When neurological sequelae were also considered, a positive malaria test was associated with a better outcome. The performance of thick film microscopy against PCR yielded a sensitivity of 96.8% and a specificity of 82.7%. CONCLUSIONS: In this cohort of children with a decreased consciousness, the frequent presence of a malarial infection could not be judged from the clinical findings on admission, but the combination of profound aneamia, thrombocytopenia, and a high CRP level increased the odds of a positive malaria test result. Mortality remained high regardless of etiology, but malaria infection associated with fewer neurological deficits at discharge. Thick film microscopy performed well compared to the cytb-qPCR method.


Assuntos
Anemia , Malária Cerebral , Malária Falciparum , Trombocitopenia , Humanos , Criança , Lactente , Malária Falciparum/diagnóstico , Malária Falciparum/epidemiologia , Malária Falciparum/complicações , Estudos Prospectivos , Estado de Consciência , Angola/epidemiologia , Malária Cerebral/diagnóstico , Malária Cerebral/epidemiologia , Malária Cerebral/complicações , Anemia/etiologia , Reação em Cadeia da Polimerase
13.
Vnitr Lek ; 69(E-2): 10-18, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37072261

RESUMO

Anemia, which is a manifestation of the deterioration of patients' health and performance, is a common concomitant condition in diseases with signs of inflammation activation. This anemia - anemia of inflammation, is caused by disturbances of iron metabolism that lead to iron retention within macrophages, cytokine mediated inhibition of erythropoietin function and erythroid progenitor cell differentiation, and a reduced erytrocyte half-life. Anemia is usually mild to moderate, normocytic and normochromic. It is characterized by low iron circulation, but normal to increased levels of stored ferritin and the hormone hepcidin. The primary therapeutic approach is the treatment of the underlying inflammatory disease. In case of failure, iron supplementation and / or treatment with erythropoietin stimulating agents may be used. Blood transfusions are just an emergency treatment for life-threatening anemia. A new treatment modalities with hepcidin-modifying strategies and stabilizers of hypoxia inducible factors is emerging. However, their therapeutic efficacy needs to be verified and evaluated in clinical trials.


Assuntos
Anemia , Eritropoetina , Humanos , Hepcidinas/metabolismo , Anemia/diagnóstico , Anemia/tratamento farmacológico , Anemia/etiologia , Ferro/uso terapêutico , Ferro/metabolismo , Inflamação/complicações
14.
Medicine (Baltimore) ; 102(17): e33558, 2023 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-37115087

RESUMO

Hepcidin is an essential regulator of iron homeostasis in chronic kidney disease (CKD) anemia, reticulocyte hemoglobin equivalent (RET-He) can be used to evaluate the availability of iron for erythropoiesis. Previous research has found that hepcidin indirectly regulates RET-He. This study aimed to investigate the association of hepcidin, RET-He and anemia-related indicators on anemia in chronic kidney disease. A total of 230 individuals were recruited, including 40 CKD3-4 patients, 70 CKD5 patients without renal replacement therapy, 50 peritoneal dialysis patients, and 70 hemodialysis patients. The serum levels of hemoglobin (Hb), reticulocyte, RET-He, serum iron, serum creatinine, serum ferritin, total iron binding capacity, hepcidin-25, high sensitivity C-reactive protein, transferrin, erythropoietin, intrinsic factor antibody, soluble transferrin receptor and interleukins-6 (IL-6) were measured. Hepcidin-25 was positively associated with IL-6, and negatively with total iron binding capacity, intrinsic factor antibody, and transferrin. Reticulocyte Hb equivalent was associated positively with Hb, serum ferritin, serum iron, transferrin saturation, and negatively with serum creatinine, reticulocyte, IL-6, STfR. Hepcidin-25 was not associated with RET-He, while IL-6 was independently associated with hepcidin-25 and RET-He, suggesting that hepcidin has no effffect on the iron dynamics of reticulocytes in CKD, may be related to IL-6, indicate a likelihood of a threshold for stimulation of hepcidin-25 expression by IL-6 in order to indirectly regulates RET-He.


Assuntos
Anemia Ferropriva , Anemia , Insuficiência Renal Crônica , Humanos , Reticulócitos/química , Reticulócitos/metabolismo , Hepcidinas , Fator Intrínseco/metabolismo , Interleucina-6/metabolismo , Creatinina/metabolismo , Anemia/etiologia , Ferro , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/terapia , Insuficiência Renal Crônica/metabolismo , Hemoglobinas/análise , Transferrina/análise , Ferritinas
15.
Ren Fail ; 45(1): 2199093, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37051660

RESUMO

PURPOSE: This cohort study was designed to explore whether roxadustat or erythropoietin could affect thyroid function in patients with renal anemia. METHODS: The study involved 110 patients with renal anemia. Thyroid profile and baseline investigations were carried out for each patient. The patients were divided into two groups: 60 patients taking erythropoietin served as the control group (rHuEPO group) and 50 patients using roxadustat served as the experimental group (roxadustat group). RESULTS: The results indicated that there were no significant differences in serum total thyroxine (TT4), total triiodothyronine (TT3), free triiodothyronine (FT3), free thyroxine (FT4) or thyroid stimulating hormone (TSH) between the two groups at baseline. After treatment, TSH, FT3, and FT4 were significantly lower in the roxadustat group than in the rHuEPO group (p < 0.05). After adjusting for age, sex, dialysis modality, thyroid nodules and causes of kidney disease, Cox regression showed that roxadustat was an independent influencing factor on thyroid dysfunction (HR 3.37; 95% CI 1.94-5.87; p < 0.001). After 12 months of follow-up, the incidence of thyroid dysfunction was higher in the roxadustat group than in the rHuEPO group (log-rank p < 0.001). CONCLUSION: Roxadustat may lead to a higher risk of thyroid dysfunction, including low TSH, FT3 and FT4, than rHuEPO in patients with renal anemia.


Assuntos
Anemia , Eritropoetina , Nefropatias , Humanos , Tri-Iodotironina , Tiroxina/uso terapêutico , Glândula Tireoide , Estudos de Coortes , Tireotropina , Doença Crônica , Epoetina alfa , Anemia/tratamento farmacológico , Anemia/etiologia
17.
J Vet Pharmacol Ther ; 46(3): 145-157, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37036059

RESUMO

Reduced red cell mass is a poor prognostic indicator in chronic kidney disease (CKD) patients. Whilst overt anaemia impacts on the quality of life of patients with CKD, lowered red cell mass may also compromise oxygen delivery to proximal tubular cells and contribute to progressive kidney injury. Epidemiological data from cats with CKD support this hypothesis although controlled interventional studies involving drugs that raise red cell mass in trials designed to test this hypothesis are lacking in both human and veterinary medicine. Recombinant analogues of erythropoietin (EPO) are currently standard of care for human CKD patients where low red cell mass impacts on their quality of life. Resistance to EPO is encountered in 20% to 40% of patients treated, probably due to functional iron deficiency, reflecting the difficulties of managing iron deficiency associated with the chronic inflammation of CKD. Similar issues are likely faced in managing anaemia in feline CKD although published data on the use of human EPO analogues are limited as such treatment in cats risks antibody formation resulting in red cell aplasia and transfusion dependency and so is reserved for late stage cases only. This article reviews the recent alternative therapeutic approach to increase red cell mass using HIF-prolyl hydroxylase inhibitors and explains their mode of action and theoretical advantages over EPO analogues in the context of iron metabolism. The results of human clinical trials and the potential benefit of adopting this approach in feline CKD patients are discussed.


Assuntos
Anemia , Doenças do Gato , Deficiências de Ferro , Insuficiência Renal Crônica , Humanos , Animais , Gatos , Volume de Eritrócitos , Qualidade de Vida , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/tratamento farmacológico , Insuficiência Renal Crônica/veterinária , Anemia/tratamento farmacológico , Anemia/etiologia , Anemia/veterinária , Deficiências de Ferro/veterinária , Doenças do Gato/tratamento farmacológico
18.
Hematology ; 28(1): 1-8, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37114660

RESUMO

Anemia is common in older adults, but often unexplained. Previously, we conducted a randomized, controlled trial of intravenous (IV) iron sucrose to study its impact on the 6-minute walk test and hemoglobin in older adults with unexplained anemia and ferritin levels of 20-200 ng/mL. In this report, we present for the first time the response of hemoglobin, as well as the dynamic response of biomarkers of erythropoiesis and iron indices, in a pooled analysis of the initially IV iron-treated group of 9 subjects and the subsequently IV iron treated 10 subjects from the delayed treatment group. We hypothesized that there would be a reproducible hemoglobin response from IV iron, and that iron indices and erythropoietic markers would reflect appropriate iron loading and reduced erythropoietic stress. To investigate the biochemical response of anemia to IV iron, we studied the dynamics of soluble transferrin receptor (STfR), hepcidin, erythropoietin (EPO), and iron indices over 12 weeks after treatment. In total, all 19 treated subjects were evaluable: 9 from initial treatment and 10 after cross-over. Hemoglobin rose from 11.0 to 11.7 g/dL, 12 weeks after initiating IV iron treatment of 1000 mg divided weekly over 5 weeks. We found early changes of iron loading after 1-2 IV iron dose: serum iron increased by 184 mcg/dL from a baseline of 66 mcg/dL, ferritin by 184 ng/mL from 68 ng/mL, and hepcidin by 7.49 ng/mL from 19.2 ng/mL, while STfR and serum EPO declined by 0.55 mg/L and 3.5 mU/mL from 19.2 ng/mL and 14 mU/mL, respectively. The erythroid response and evidence of enhanced iron trafficking are consistent with the hypothesis that IV iron overcomes iron deficient or iron-restricted erythropoiesis. These data provide new insight that iron-restricted erythropoiesis is a potential and targetable mechanism for patients diagnosed with unexplained anemia of the elderly and offers support for larger prospective trials of IV iron among anemic older adults of low to normal ferritin.


Assuntos
Anemia , Eritropoetina , Humanos , Idoso , Ferro , Eritropoese/fisiologia , Hepcidinas , Projetos Piloto , Estudos Prospectivos , Anemia/tratamento farmacológico , Anemia/etiologia , Ferritinas , Eritropoetina/uso terapêutico , Receptores da Transferrina , Hemoglobinas/análise , Biomarcadores
19.
Artigo em Alemão | MEDLINE | ID: mdl-37044106

RESUMO

The most common cause of anemia is iron deficiency, followed by anemia of chronic disease, which is due to an inflammatory reaction in chronic diseases such as heart failure, renal failure, rheumatoid diseases and cancer. Also from the therapeutic point of view, it is useful to divide iron deficiency anemia into two forms: absolute and functional iron deficiency. Absolute iron deficiency is characterized by low iron stores and low total iron. In functional iron deficiency, a sufficient amount of storage iron is present, but it cannot be mobilized. Therapy of iron deficient anemia should always eliminate the underlying cause. The goal of therapy is sustained normalization of hemoglobin concentration and total body iron. Therapy for absolute iron deficiency focuses on improving iron stores, eliminating chronic blood losses, and optimizing iron absorption via an iron-rich diet and iron supplementation. In the case of functional iron deficiency with inflammation present, IV iron supplementation is recommended in certain situations in addition to treatment of the underlying disease, especially in patients with cancer.


Assuntos
Anemia Ferropriva , Anemia , Deficiências de Ferro , Humanos , Ferro/uso terapêutico , Anemia/diagnóstico , Anemia/etiologia , Anemia/terapia , Anemia Ferropriva/diagnóstico , Anemia Ferropriva/etiologia , Anemia Ferropriva/terapia , Doença Crônica
20.
Medicine (Baltimore) ; 102(15): e33564, 2023 Apr 14.
Artigo em Inglês | MEDLINE | ID: mdl-37058012

RESUMO

Roxadustat has been associated with the efficacy and safety in patients with chronic kidney disease-related anemia. However, the relationship between roxadustat blood concentration and clinical efficacy is lacking. To explore of the correlation between clinical efficacy and blood concentration of roxadustat in patients with renal anemia of chronic kidney diseases, so as to provide reference for rational clinical drug use. A total of 46 patients were selected with a diagnosis of renal anemia who were prescribed roxadustat at the department of nephrology of the First Hospital of Hebei Medical University from December 2019 to March 2020. The roxadustat blood concentration was determined at 12 weeks of treatment, according to the cumulative response rate, patients were divided into the response group and the nonresponse group, and the relationship between roxadustat blood concentration and treatment effect was analyzed. We also explored the correlation between various factors and the blood concentration. The patients in the response group had higher roxadustat blood concentrations than the nonresponse group (P < .05), and there was no correlation between blood concentration and clinical characteristics such as age, gender, and dosage (P > .05). The blood concentration of roxadustat was correlated with clinical efficacy. The higher the blood concentration, the better the clinical efficacy, meaning it might be a predictor of efficacy.


Assuntos
Anemia , Insuficiência Renal Crônica , Humanos , Prolina Dioxigenases do Fator Induzível por Hipóxia/uso terapêutico , Anemia/etiologia , Anemia/induzido quimicamente , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/tratamento farmacológico , Doença Crônica , Resultado do Tratamento , Glicina/uso terapêutico , Glicina/efeitos adversos , Isoquinolinas
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