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1.
J Prev Med Hyg ; 65(1): E36-E42, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38706771

RESUMEN

Background: Iron and Vitamin D3 deficiency is one of the major global health problems in teenagers and adolescent population. This study was aimed to monitor the utilization and predictive factors of Iron and Vitamin D Supplementations Program (IVDSP) in high schools' girls. Methods: In a cross sectional study, the pattern of Iron and D3 consumption based on IVDSP on 400 high schools' girl in Qom, Iran assesses. Data collection was used by a reliable and standard researcher based questionnaire and daily, weekly, monthly and seasonally consumption of complementary minerals in schools were gathered. Data analysis conducted using SPSS version 20 (SPSS Inc., Chicago, IL, USA) by chi square, independent t-test and multivariate logistic regression. Results: The mean age of subjects was 15.14 ± 1.52 years and ranged from 12 to 18 years old. The total weekly prevalence of D3 and Iron consumption in high schools' girls was calculated 36.73% and the weekly prevalence of Iron and monthly prevalence of Vitamin D3 consumption was 33.75% and 40.5%, respectively. The most common causes of non-consumption were bad taste 49.31%, Iranian made drug 20.27%, drug sensitivity 19.82% and drug interaction 10.60%, respectively. Conclusions: The inadequate and incomplete rate of IVDSP in Qom was high and more than 60% of distributed supplementations have been wasted. Results showed that students who were participated in educational orientation classes were more successful and eager in Iron and Vitamin D3 consumption. Therefore, more educational explanatory interventions for both students and her parents recommended to increase the efficiency of the program.


Asunto(s)
Suplementos Dietéticos , Humanos , Femenino , Adolescente , Irán , Estudios Transversales , Niño , Deficiencia de Vitamina D/epidemiología , Instituciones Académicas , Colecalciferol/administración & dosificación , Colecalciferol/uso terapéutico , Vitamina D/administración & dosificación , Hierro/administración & dosificación , Encuestas y Cuestionarios
2.
J Infus Nurs ; 47(3): 163-174, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38744241

RESUMEN

There is a direct correlation between being overweight and iron deficiency. Physiological changes occur in obese adipose cells that contribute to the development of iron deficiency (ID) and iron deficiency anemia (IDA). These changes disrupt the normal iron metabolic checks and balances. Furthermore, bariatric surgery can lead to long-term ID and IDA. Oral iron supplementation may not be effective for many of these patients. Intravenous iron infusions can significantly increase the quality of life for individuals experiencing this condition but are also associated with potentially serious complications. Adequate knowledge about intravenous (IV) iron administration can greatly increase the safety of this beneficial therapy. This review article explains the relationship between obesity, ID/IDA, bariatric surgery and the safe administration of IV iron.


Asunto(s)
Anemia Ferropénica , Cirugía Bariátrica , Hierro , Obesidad , Humanos , Obesidad/complicaciones , Anemia Ferropénica/tratamiento farmacológico , Hierro/administración & dosificación , Infusiones Intravenosas , Deficiencias de Hierro , Calidad de Vida
3.
Sci Rep ; 14(1): 9980, 2024 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-38693315

RESUMEN

Iron deficiency anemia is a public health problem among adolescents that could be addressed by weekly Iron Folic Acid Supplementation (IFAS). The Ethiopian government piloted weekly IFAS in schools, where its effectiveness depends on compliance. We assessed the determinants of compliance with the weekly IFAS in Ethiopia. A school-based survey was conducted in 506 adolescent girls on weekly IFAS. Compliance was considered when girls reported WIFAS for at least three months without discontinuation. Bivariable and multivariable logistic regression models were modeled, with odds ratios reported. Out of 506, 25.8% had limited access to educational resources, and 79.4% had no information on IFAS. Among these, 47.9% (95% CI: 45.5-49.9%) had poor compliance with weekly IFAS. Non-compliance was mainly due to school absenteeism (55.9%). Important predictors of poor compliance were adolescent girls' marital status (AOR = 5.21; 1.55-17.6), academic standing (AOR = 4.37; 2.20-8.70), family income (AOR = 1.85; 1.09-3.15), access to health education materials (AOR = 1.57; 1.02-2.40), problems with IFAS (AOR = 2.44; 1.26-4.74), a discouraging home environment for the program (AOR = 2.27; 1.54-3.34), and a lack of knowledge of the IFAS program (AOR = 1.40; 0.97-2.03). Compliance with weekly IFAS is optimal, which could be improved via strong adherence support and feasible supplementation schedules.


Asunto(s)
Suplementos Dietéticos , Ácido Fólico , Hierro , Humanos , Femenino , Adolescente , Ácido Fólico/administración & dosificación , Etiopía , Estudios Transversales , Hierro/administración & dosificación , Anemia Ferropénica/prevención & control , Anemia Ferropénica/epidemiología , Instituciones Académicas , Cooperación del Paciente/estadística & datos numéricos
4.
Nutrients ; 16(9)2024 Apr 24.
Artículo en Inglés | MEDLINE | ID: mdl-38732502

RESUMEN

INTRODUCTION: Iron deficiency is common in patients with non-dialysis-dependent chronic kidney disease (NDD-CKD). Oral iron supplementation is recommended in these patients, but it is associated with a higher incidence of gastrointestinal adverse reactions. Liposomal iron therapy has been proposed as a new iron formulation, improving iron bioavailability with less side effects; however, few data are available in patients with NDD-CKD. METHODS: We designed a single-arm pilot study to evaluate the efficacy of liposomal iron administered for six months in correcting iron deficiency (defined as serum ferritin < 100 ng/mL and/or transferrin saturation < 20%) in patients with NDD-CKD stages 1-5. The primary endpoints were the achievement of serum ferritin ≥ 100 ng/mL and transferrin saturation ≥ 20%. Secondary outcomes were hemoglobin (Hb) changes and the safety of liposomal iron. RESULTS: The efficacy population included 34/38 patients, who completed at least one visit after baseline. Liposomal iron increased the achievement of transferrin saturation targets from 11.8% at baseline to 50.0% at month 6 (p = 0.002), while no significant correction of serum ferritin (p = 0.214) and Hb was found (p = 0.465). When patients were stratified by anemia (Hb < 12 g/dL in women and Hb < 13 g/dL in men), a significant improvement of transferrin saturation was observed only in anemic patients (from 13.3 ± 5.8% to 20.2 ± 8.1%, p = 0.012). Hb values slightly increased at month 6 only in anemic patients (+0.60 g/dL, 95%CI -0.27 to +1.48), but not in those without anemia (+0.08 g/dL, 95%CI -0.73 to +0.88). In patients taking at least one dose of liposomal iron (safety population, n = 38), the study drug was discontinued in eight patients due to death (n = 2), a switch to intravenous iron (n = 2), and the occurrence of side effects (n = 4). CONCLUSIONS: The use of liposomal iron in patients with NDD-CKD is associated with a partial correction of transferrin saturation, with no significant effect on iron storage and Hb levels.


Asunto(s)
Anemia Ferropénica , Suplementos Dietéticos , Ferritinas , Hemoglobinas , Hierro , Liposomas , Insuficiencia Renal Crónica , Transferrina , Humanos , Femenino , Masculino , Insuficiencia Renal Crónica/complicaciones , Anciano , Anemia Ferropénica/tratamiento farmacológico , Anemia Ferropénica/sangre , Anemia Ferropénica/etiología , Persona de Mediana Edad , Proyectos Piloto , Hierro/administración & dosificación , Hierro/sangre , Hemoglobinas/análisis , Hemoglobinas/metabolismo , Ferritinas/sangre , Transferrina/metabolismo , Administración Oral , Resultado del Tratamiento , Deficiencias de Hierro
5.
Nutrients ; 16(9)2024 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-38732532

RESUMEN

Anemia in breastfeeding women is a neglected global health issue with significant implications for maternal and child health. Despite its widespread occurrence and adverse effects, this problem remains largely unknown and overlooked on the global health agenda. Despite efforts to improve health access coverage and provide iron and folic acid supplementation, anemia persists. This underscores the need for a comprehensive approach to address the problem. Urgent action must be taken to prioritize education and awareness campaigns, ensure access to nutritious food, and enhance healthcare services. Education programs should focus on promoting iron-rich diets, dispelling cultural myths, and providing practical guidance. Improving healthcare services requires increasing availability, ensuring a consistent supply of iron supplements, and providing adequate training for healthcare providers. A successful implementation relies on a strong collaboration between the government, healthcare providers, and community. It is crucial that we acknowledge that high coverage alone is insufficient for solving the issue, emphasizing the importance of targeted interventions and a strategic implementation. By adopting a comprehensive approach and addressing the underlying causes of anemia, Indonesia can make significant progress in reducing its prevalence and improving the overall health of its population, particularly among breastfeeding women.


Asunto(s)
Lactancia Materna , Suplementos Dietéticos , Humanos , Indonesia/epidemiología , Femenino , Anemia/epidemiología , Anemia/prevención & control , Anemia Ferropénica/epidemiología , Anemia Ferropénica/prevención & control , Lactante , Salud Infantil , Hierro/administración & dosificación , Ácido Fólico/administración & dosificación
6.
Heart Lung ; 66: 94-102, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38598979

RESUMEN

BACKGROUND: Iron Deficiency (ID) is common in Heart Failure (HF) and associated with poor outcomes. Replacement with intravenous (IV) iron can improve functional status, quality of life and risk of unplanned admission. In 2015/16 a local service evaluation was performed which found that of people admitted with HF, only 27.5 % had assessment of iron status, and when identified, replacement occurred in fewer than half. Education strategies were employed to increase awareness of the importance of assessment and correction. OBJECTIVES: To assess if practice had improved following education strategies. METHODS: A review of 220 patient records for people admitted with HF in 2020/21 to establish if iron status assessed, presence of ID, and whether if ID identified it was treated, and by which route. Trends in 2020/21 data were explored in sub-groups by age, sex, type of HF, anaemia status, input from HF specialists and type of ID. RESULTS: Compared to 2015/16, more assessments of iron status were performed (45% vs 27.5 %), ID was corrected more frequently (57% vs 46 %) and increased use of the IV route for replacement (83% vs 58 %) CONCLUSIONS: Despite the impact of COVID-19 on usual care in 2020/21, improvement was seen in proportion of assessment and treatment of ID following simple education strategies for key stakeholders. There may be scope to improve practice further if the findings remain similar post pandemic. If so, a formal Quality Improvement approach may be helpful.


Asunto(s)
Anemia Ferropénica , Insuficiencia Cardíaca , Humanos , Insuficiencia Cardíaca/complicaciones , Insuficiencia Cardíaca/epidemiología , Masculino , Femenino , Anemia Ferropénica/epidemiología , Anemia Ferropénica/diagnóstico , Anemia Ferropénica/terapia , Reino Unido/epidemiología , Anciano , Persona de Mediana Edad , Anciano de 80 o más Años , Hospitalización/estadística & datos numéricos , Estudios Retrospectivos , Calidad de Vida , Hierro/administración & dosificación , COVID-19/epidemiología , COVID-19/complicaciones
7.
J Dev Orig Health Dis ; 15: e6, 2024 Apr 24.
Artículo en Inglés | MEDLINE | ID: mdl-38653729

RESUMEN

We previously showed in rats that pre- and postnatal deficiencies in iron and omega-3 (n-3) fatty acids can impair bone development, with additive and potentially irreversible effects when combined. This study aimed to investigate, in female rats consuming a combined iron and n-3 fatty acid deficient (ID + n-3 FAD) diet preconception, whether supplementation with iron and docosahexaenoic/eicosapentaenoic acid (DHA/EPA), alone and in combination, can prevent bone impairments in offspring. Using a 2 × 2 factorial design, female Wistar rats consuming an ID + n-3 FAD diet preconception were randomised to receive an: 1) iron supplemented (Fe + n-3 FAD), 2) DHA/EPA supplemented (ID + DHA/EPA), 3) Fe + DHA/EPA, or 4) ID + n-3 FAD diet from gestational day 10 throughout pregnancy and lactation. Post-weaning, offspring (n = 24/group; male:female = 1:1) remained on the respective experimental diets for three weeks until postnatal day 42-45. Offspring born to female rats consuming a control diet preconception and an Fe+DHA/EPA diet throughout pregnancy and lactation served as non-deficient reference group (Control+Fe+DHA/EPA). Bone mineral density (BMD) was measured using dual-energy X-ray absorptiometry and bone strength using three-point bending tests. Only offspring in the Fe+DHA/EPA group had significantly higher spine and femur BMD, and higher femur stiffness than offspring in the ID + n-3 FAD group, and had similar spine BMD and femur stiffness as the Control + Fe + DHA/EPA group. Offspring in the Fe + DHA/EPA group further had significantly higher femur strength (ultimate load) than the other experimental groups, and a similar femur strength as the Control + Fe + DHA/EPA group. This study shows that only combined iron and DHA/EPA supplementation can prevent bone impairments in offspring of female rats consuming an iron and n-3 FA deficient diet preconception.


Asunto(s)
Suplementos Dietéticos , Ácidos Grasos Omega-3 , Ratas Wistar , Animales , Femenino , Ácidos Grasos Omega-3/administración & dosificación , Ratas , Embarazo , Masculino , Hierro/metabolismo , Hierro/administración & dosificación , Densidad Ósea/efectos de los fármacos , Efectos Tardíos de la Exposición Prenatal/prevención & control
8.
J Anim Sci ; 1022024 Jan 03.
Artículo en Inglés | MEDLINE | ID: mdl-38632976

RESUMEN

This experiment aimed to investigate the effects of dietary iron supplementation from different sources on the reproductive performance of sows and the growth performance of piglets. A total of 87 sows with similar farrowing time were blocked by body weight at day 85 of gestation, and assigned to one of three dietary treatments (n = 29 per treatment): basal diet, basal diet supplemented with 0.2% ferrous sulfate (FeSO4), and basal diet supplemented with 0.2% iron sucrose, respectively, with 30% iron in both FeSO4 and iron sucrose. Compared with the control (CON) group, iron sucrose supplementation reduced the rate of stillbirth and invalid of neonatal piglets (P < 0.05), and the number of mummified fetuses was 0. Moreover, it also improved the coat color of newborn piglets (P < 0.05). At the same time, the iron sucrose could also achieve 100% estrus rate of sows. Compared with the CON group, FeSO4 and iron sucrose supplementation increased the serum iron content of weaned piglets (P < 0.05). In addition, iron sucrose increased serum transferrin level of weaned piglets (P < 0.05) and the survival rate of piglets (P < 0.05). In general, both iron sucrose and FeSO4 could affect the blood iron status of weaned piglets, while iron sucrose also had a positive effect on the healthy development of newborn and weaned piglets, and was more effective than FeSO4 in improving the performance of sows and piglets.


Sows need more iron to meet the requirements for their and offspring's growth during pregnancy and lactation. Exogenous iron supplementation may improve the reproductive performance of sows and the growth performance of piglets, but different sources of iron have different effects. This study facilitates the understanding of the effects of iron sucrose and ferrous sulfate on the reproductive performance of sows and the growth performance of piglets.


Asunto(s)
Alimentación Animal , Fenómenos Fisiológicos Nutricionales de los Animales , Dieta , Suplementos Dietéticos , Reproducción , Animales , Femenino , Alimentación Animal/análisis , Dieta/veterinaria , Porcinos/crecimiento & desarrollo , Porcinos/fisiología , Reproducción/efectos de los fármacos , Embarazo , Animales Recién Nacidos , Hierro/administración & dosificación , Hierro/farmacología , Compuestos Ferrosos/farmacología , Compuestos Ferrosos/administración & dosificación , Sacarato de Óxido Férrico/farmacología , Sacarato de Óxido Férrico/administración & dosificación , Hierro de la Dieta/administración & dosificación , Hierro de la Dieta/farmacología
10.
Trials ; 25(1): 289, 2024 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-38685109

RESUMEN

BACKGROUND: Iron and folic acid (IFA) supplements are currently provided to Cambodian women during pregnancy. However, recent research has found benefits of a multiple micronutrient supplement (MMS) over just IFA alone on several outcomes of perinatal and infant health. The Ministry of Health in Cambodia has proposed a transition from IFA to MMS but to effectively guide this transition requires implementation research on the acceptability and adherence to MMS (over IFA). METHODS: This non-inferiority trial aims to assess the adherence and acceptability of IFA (60 mg elemental iron and 400 µg folic acid) compared to MMS (standard UNIMMAP formulation including 15 micronutrients) during antenatal care in Cambodia. A prospective cohort of 1545 pregnant women will be assigned to one of three trial arms: (1) IFA for 90 days [IFA-90]; (2) MMS for 180 days with two distributions of 90-count tablet bottles [MMS-90]; or (3) MMS for 180 days with one 180-count tablet bottle [MMS-180]. Each arm will enroll 515 women across 48 health centers (clusters) in Kampong Thom Province in Cambodia. The primary outcome is the non-inferiority of adherence rates of MMS-180 compared to IFA-90, as assessed by tablet counts. Mixed-effects logistic and linear regression models will be used to estimate the difference in the adherence rate between the two groups, with an 'a priori' determined non-inferiority margin of 15%. Acceptability of MMS and IFA will be measured using a quantitative survey conducted with enrolled pregnant women at 30-day, 90-day, and 180-day time-points. DISCUSSION: Findings from this study will guide an effective and feasible MMS scale-up strategy for Cambodia. Additionally, the findings will be shared globally with other stakeholders planning to scale up MMS in other countries. TRIAL REGISTRATION: NCT05867836 ( ClinicalTrials.gov , registered May 18, 2023).


Asunto(s)
Suplementos Dietéticos , Ácido Fólico , Micronutrientes , Humanos , Femenino , Embarazo , Cambodia , Micronutrientes/administración & dosificación , Ácido Fólico/administración & dosificación , Estudios Prospectivos , Hierro/administración & dosificación , Estudios de Equivalencia como Asunto , Atención Prenatal/métodos , Cumplimiento de la Medicación , Adulto , Estudios Multicéntricos como Asunto , Aceptación de la Atención de Salud , Resultado del Tratamiento
11.
Am J Hematol ; 99(6): 1077-1083, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38476079

RESUMEN

Restless legs syndrome (RLS) is a neurological disorder that can have a profound effect on sleep and quality of life. Idiopathic RLS is associated with brain iron insufficiency despite normal peripheral iron stores. There is, however, a five- to six-fold increase in prevalence of RLS in patients with iron deficiency anemia (IDA). Several open-label trials have demonstrated symptomatic improvement in RLS following treatment of IDA using oral or intravenous iron supplementation. To date, there have been no randomized double-blind controlled trials of intravenous iron compared with oral iron for the treatment of RLS patients with IDA. In the current study, oral ferrous sulfate and ferumoxytol were compared for efficacy and speed of response for treatment of RLS occurring in patients with IDA. The planned recruitment for this study was 70 patients with RLS and IDA, to be randomly assigned 1:1 to oral or intravenous iron, using double-blind, double-dummy procedures. At Week 6, the primary outcomes of Clinical Global Impression-Improvement score and change from baseline in the International Restless Legs Syndrome Study Group rating scale score were assessed. Due to challenges, performing the clinical trial during the COVID-19 pandemic, final-week data were found missing for 30 patients. As a result, in order to maintain the prespecified statistical analysis, an additional 30 patients were recruited. Both IV and oral iron were associated with a marked improvement in RLS symptoms, with no statistically significant difference between treatment groups. No serious adverse events were observed in either treatment group.


Asunto(s)
Administración Intravenosa , Anemia Ferropénica , Compuestos Ferrosos , Síndrome de las Piernas Inquietas , Humanos , Síndrome de las Piernas Inquietas/tratamiento farmacológico , Anemia Ferropénica/tratamiento farmacológico , Administración Oral , Método Doble Ciego , Masculino , Femenino , Proyectos Piloto , Persona de Mediana Edad , Compuestos Ferrosos/administración & dosificación , Compuestos Ferrosos/uso terapéutico , Compuestos Ferrosos/efectos adversos , Adulto , Anciano , Resultado del Tratamiento , Óxido Ferrosoférrico/administración & dosificación , Óxido Ferrosoférrico/uso terapéutico , Óxido Ferrosoférrico/efectos adversos , Hierro/administración & dosificación , Hierro/uso terapéutico
12.
Curr Opin Anaesthesiol ; 37(3): 234-238, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38390913

RESUMEN

PURPOSE OF REVIEW: Postpartum anemia (PPA) is common in women after childbirth and affects about 50-80% of all women worldwide. Iron deficiency (ID) is the main cause for anemia and constitutes a potentially preventable condition with great impact on the mother's physical and mental condition after delivery. In most cases, PPA is associated with antenatal ID and peripartum blood losses. Numerous published studies confirmed the positive effect of PPA diagnosis and treatment. RECENT FINDINGS: Iron deficiency as well as iron deficiency anemia (IDA) are common in the postpartum period and represent significant health problems in women of reproductive age. SUMMARY: Important movements towards early detection and therapy of postpartum anemia have been observed. However, postpartum anemia management is not implemented on a large scale as many healthcare professionals are not aware of the most recent findings in the field. Diagnosis and therapy of PPA, particularly iron supplementation in ID and IDA, has proven to be highly effective with a tremendous effect on women's wellbeing and outcome.


Asunto(s)
Anemia Ferropénica , Humanos , Femenino , Anemia Ferropénica/diagnóstico , Anemia Ferropénica/terapia , Anemia Ferropénica/etiología , Embarazo , Anemia/terapia , Anemia/diagnóstico , Anemia/etiología , Hierro/uso terapéutico , Hierro/administración & dosificación , Periodo Posparto , Trastornos Puerperales/terapia , Trastornos Puerperales/diagnóstico , Trastornos Puerperales/etiología , Suplementos Dietéticos , Deficiencias de Hierro/diagnóstico , Deficiencias de Hierro/terapia
13.
Br J Haematol ; 204(5): 2057-2065, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38302093

RESUMEN

Increased iron loss may reduce the effectiveness of iron supplementation. The objective of this study was to determine if daily oral iron supplementation increases iron loss, measured using a stable isotope of iron (58Fe). We enrolled and dewormed 24 iron-depleted Kenyan children, 24-27 months of age, whose body iron was enriched and equilibrated with 58Fe given at least 1 year earlier. Over 3 months of supplementation (6 mg iron/kg body weight [BW]/day), mean (±SD) iron absorption was 1.10 (±0.28) mg/day. During supplementation, 0.55 (±0.36) mg iron/day was lost, equal to half of the amount of absorbed iron. Supplementation did not increase faecal haem/porphyrin or biomarkers of enterocyte damage and gut or systemic inflammation. Using individual patient data, we examined iron dose, absorption and loss among all available long-term iron isotopic studies of supplementation. Expressed in terms of body weight, daily iron loss was correlated significantly with iron absorption (Pearson's r = 0.66 [95% confidence interval 0.48-0.78]) but not with iron dose (r = 0.16 [95% CI -0.10-0.40]). The results of this study indicate that iron loss is increased with daily oral iron supplementation and may blunt the efficacy of iron supplements in children. This study was registered at ClinicalTrials.gov as NCT04721964.


Asunto(s)
Suplementos Dietéticos , Isótopos de Hierro , Hierro , Humanos , Femenino , Masculino , Preescolar , Kenia , Hierro/metabolismo , Hierro/administración & dosificación , Anemia Ferropénica/tratamiento farmacológico , Lactante
15.
Semergen ; 50(4): 102157, 2024.
Artículo en Español | MEDLINE | ID: mdl-38157754

RESUMEN

INTRODUCTION: Approximately 45% of patients with heart failure had iron deficiency for the rest of their lives. OBJECTIVE: To determine the effect of iron treatment in patients with heart failure and iron deficiency or anemia. MATERIALS AND METHODS: The studies were selected in: PubMed, Scopus, Cochrane and Google Scholar, from the beginning of June to July 2023. The selected articles that met the inclusion criteria, the relevant information of the studies were collected according to the selection variables and were recorded in the Revman 5.0 program of the Cochrane collaboration. The primary outcome was composed of hospitalization for heart failure or cardiovascular death. RESULTS: Of the 7 included studies, 6717 patients were obtained, the average age was 70 years with a predominance of the male gender (57%). The primary outcome was lower in patients in the control group compared to the placebo group (OR, 0.62; 95%CI, 0.54-0.70). The 6-minute walk test (6-MWT) was improved in the iron-supplemented group compared to the placebo group (OR, 0.79; 95%CI, 0.64-0.98). Adverse events were fewer in the iron supplement group compared to the placebo group (OR, 0.78; 95%CI, 0.67-0.91). CONCLUSION: In this meta-analysis of randomized controlled trials, the effect of iron supplementation is found to reduce the incidence rate of hospitalization for heart failure or cardiovascular death. In addition to a reduction in adverse events, such as gastrointestinal and neurological disorders, it also improves 6-MWT.


Asunto(s)
Anemia Ferropénica , Insuficiencia Cardíaca , Ensayos Clínicos Controlados Aleatorios como Asunto , Humanos , Insuficiencia Cardíaca/tratamiento farmacológico , Anemia Ferropénica/tratamiento farmacológico , Masculino , Anciano , Femenino , Hospitalización/estadística & datos numéricos , Suplementos Dietéticos , Deficiencias de Hierro , Hierro/administración & dosificación , Prueba de Paso
16.
J Biol Chem ; 299(8): 105064, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37468101

RESUMEN

Leishmania parasites are heavily dependent on efficient iron acquisition from a tightly regulated host iron pool for survival and virulence. Prior studies uncovered multiple strategies adopted by the parasite to hijack the iron-regulatory network of macrophages. Despite these extensive studies with infected macrophages, there is limited knowledge of the effect of Leishmania infection on systemic iron homeostasis. This issue is particularly relevant for Leishmania major, which causes localized skin infection with minimal lymphatic spread. We show for the first time that L. major infection in the mouse footpad induced influx of iron at the site of infection through blood with simultaneous upregulation of transferrin receptor 1 and downregulation of phagolysosomal iron exporter Nramp1 expression in the footpad tissue. Interestingly, localized L. major infection had far-reaching effects beyond the infection site triggering anemia-like symptoms. This was evident from depleted physiological iron stores from the liver and bone marrow as well as reduced hemoglobin levels and deformed erythrocytes. The infected mice also developed splenomegaly with signs of splenic stress erythropoiesis as indicated by upregulation of several erythroid-related genes. These observations prompted us to provide oral iron supplementations to the L. major-infected mice, which resulted in a drastic reduction of the parasite load and restoration of iron homeostasis.


Asunto(s)
Homeostasis , Hierro , Leishmaniasis Cutánea , Animales , Ratones , Suplementos Dietéticos , Eritrocitos/metabolismo , Hierro/administración & dosificación , Hierro/metabolismo , Leishmania major , Leishmaniasis Cutánea/metabolismo
17.
J Acquir Immune Defic Syndr ; 94(1): 57-65, 2023 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-37199401

RESUMEN

OBJECTIVE: Anemia is highly prevalent among people living with HIV (PLWHIV) and is often due to iron deficiency. This study evaluated the relationship of dietary iron intake levels and sources with mortality and clinical outcomes among adults initiating HAART. DESIGN: We conducted a secondary analysis of a multivitamin supplementation trial among 2293 PLWHIV initiating HAART in Dar es Salaam, Tanzania. METHODS: Dietary iron intake was assessed with a food frequency questionnaire at HAART initiation, and participants followed until death or censoring. Total, animal-, and plant-sourced iron were categorized into quartiles. Intake of food groups was categorized into 0-1, 2-3, and ≥4 servings/wk. Cox proportional hazards models estimated hazard ratios for mortality and incident clinical outcomes. RESULTS: There were 175 deaths (8%). Red meat intake was associated with a lower risk of all-cause mortality (HR: 0.54; 95% CI: 0.35 to 0.83), AIDS-related mortality (HR: 0.49; 95% CI: 0.28 to 0.85), and severe anemia (HR: 0.57; 95% CI: 0.35 to 0.91), when intake ≥4 servings/wk, compared with 0-1 servings/wk. Legume intake was a lower risk of associated with all-cause mortality (HR: 0.49; 95% CI: 0.31 to 0.77) and AIDS-related mortality (HR: 0.37; 95% CI: 0.23 to 0.61), when intake ≥4 servings/wk, compared with 0-1 servings/wk. Although total dietary iron and overall plant-sourced iron intake were not associated with the risk of mortality or HIV-related outcomes, the highest quartile of animal-sourced iron intake was associated with a lower risk of all-cause mortality (HR: 0.56; 95% CI: 0.35 to 0.90) and a lower risk of AIDS-related mortality (HR: 0.50; 95% CI: 0.30 to 0.90), compared with the lowest quartile. CONCLUSION: Intake of iron-rich food groups may be associated with a lower risk of mortality and critical HIV-related outcomes among adults initiating HAART. TRIAL REGISTRATION: The parent trial was registered at Clinicaltrials.gov . Identifier: NCT00383669.


Asunto(s)
Infecciones por VIH , Hierro de la Dieta , Humanos , Síndrome de Inmunodeficiencia Adquirida/complicaciones , Anemia/epidemiología , Anemia/complicaciones , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Hierro/administración & dosificación , Hierro de la Dieta/administración & dosificación , Tanzanía/epidemiología , Adulto
18.
BMC Pregnancy Childbirth ; 23(1): 260, 2023 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-37072714

RESUMEN

BACKGROUND: Anemia is still one of the major public health problems in many developing countries including Ethiopia. Thus, this study aimed to assess individual and contextual-level factors associated with iron-folic acid supplement intake during pregnancy in Ethiopia. METHODS: A secondary analysis was done on the 2019 mini-Ethiopian Demographic and Health Survey (EDHS) dataset. A total of 3,927 pregnant women who gave birth five years before the survey were included in the analysis. Multi-level mixed-effect logistic regression analysis was done by STATA/SE version 14.0 to identify individual and contextual-level factors. Adjusted Odds Ratio (AOR) with 95% Confidence Interval (CI) was used to show the strength and direction of the association. The level of statistical significance was declared at a P value less than 0.05. RESULTS: Those primary educated [AOR = 1.83, 95% CI: (1.24, 2.74)], secondary educated [AOR = 2.75, 95% CI: (1.57, 4.824)], women who had greater than 5 living children [AOR = 2.02, 95% CI: (1.25, 3.27)], women who had ANC visit [AOR = 21.26, 95% CI: (13.56, 33.32)] and women who lived in a cluster with high proportion of women had ANC visit [AOR = 1.72, 95% CI: (1.17, 2.54)] and women who lived in Somali [AOR = 0.44 0.73, 95% CI: (0.22, 0.87)] were significantly associated with iron-folic acid intake during pregnancy. CONCLUSIONS: Both individual and contextual-level factors were significantly associated with iron-folic acid intake during pregnancy. From individual-level factors: education status of women, the total numbers of living children, and ANC follow-up are significant and from contextual-level factors: region and living in a high proportion of women who had ANC follow-up were found to have a statistically significant association. Promoting women's education and maternal health services like ANC and intervention targeting the Somali region would be the recalled area of the government.


Asunto(s)
Hierro , Atención Prenatal , Niño , Femenino , Humanos , Embarazo , Estudios Transversales , Etiopía/epidemiología , Ácido Fólico/administración & dosificación , Hierro/administración & dosificación , Análisis Multinivel
20.
ACS Nano ; 17(5): 4261-4278, 2023 03 14.
Artículo en Inglés | MEDLINE | ID: mdl-36706095

RESUMEN

Triple-negative breast cancer (TNBC) is considered more aggressive with a poorer prognosis than other breast cancer subtypes. Through systemic bioinformatic analyses, we established the ferroptosis potential index (FPI) based on the expression profile of ferroptosis regulatory genes and found that TNBC has a higher FPI than non-TNBC in human BC cell lines and tumor tissues. To exploit this finding for potential patient stratification, we developed biologically amenable phototheranostic iron pyrite FeS2 nanocrystals (NCs) that efficiently harness near-infrared (NIR) light, as in photovoltaics, for multispectral optoacoustic tomography (MSOT) and photothermal ablation with a high photothermal conversion efficiency (PCE) of 63.1%. Upon NIR irradiation that thermodynamically enhances Fenton reactions, dual death pathways of apoptosis and ferroptosis are simultaneously triggered in TNBC cells, comprehensively limiting primary and metastatic TNBC by regulating p53, FoxO, and HIF-1 signaling pathways and attenuating a series of metabolic processes, including glutathione and amino acids. As a unitary phototheranostic agent with a safe toxicological profile, the nanocrystal represents an effective way to circumvent the lack of therapeutic targets and the propensity of multisite metastatic progression in TNBC in a streamlined workflow of cancer management with an integrated image-guided intervention.


Asunto(s)
Nanopartículas , Fármacos Fotosensibilizantes , Terapia Fototérmica , Neoplasias de la Mama Triple Negativas , Humanos , Muerte Celular , Línea Celular Tumoral , Hierro/administración & dosificación , Hierro/uso terapéutico , Nanopartículas/administración & dosificación , Nanopartículas/uso terapéutico , Neoplasias de la Mama Triple Negativas/tratamiento farmacológico , Neoplasias de la Mama Triple Negativas/genética , Neoplasias de la Mama Triple Negativas/radioterapia , Femenino , Rayos Infrarrojos/uso terapéutico , Terapia Fototérmica/métodos , Sulfuros/administración & dosificación , Sulfuros/uso terapéutico , Fármacos Fotosensibilizantes/administración & dosificación , Fármacos Fotosensibilizantes/uso terapéutico , Apoptosis/efectos de los fármacos , Apoptosis/efectos de la radiación , Ferroptosis/efectos de los fármacos , Ferroptosis/efectos de la radiación
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