scholarly journals Iron serum levels and iron homeostasis parameters in patients with nosocomial pneumonia treated with cefiderocol: post hoc analysis of the APEKS-NP study

2022 ◽  
Author(s):  
Eric P. Skaar ◽  
Roger Echols ◽  
Yuko Matsunaga ◽  
Anju Menon ◽  
Simon Portsmouth
Keyword(s):  
Nosocomial Pneumonia ◽  
Serum Iron ◽  
Iron Homeostasis ◽  
Binding Capacity ◽  
Transferrin Saturation ◽  
Efficacy And Safety ◽  
Baseline Serum ◽  
Post Hoc Analysis ◽  
Iron Binding Capacity ◽  
Post Hoc

AbstractCritically ill patients often present with low serum iron levels or anemia. We evaluated the impact of iron levels and iron homeostasis on the efficacy and safety of cefiderocol, an iron-chelator siderophore cephalosporin, in patients with nosocomial pneumonia in a post hoc analysis of the randomized, double-blind, Phase 3 APEKS-NP study (NCT03032380). Patients with Gram-negative nosocomial pneumonia received cefiderocol 2 g, 3-h infusion, q8h, or high-dose, extended-infusion meropenem 2 g, 3-h infusion, q8h, for 7–14 days. Efficacy and safety parameters, including specific iron homeostasis parameters (i.e., hepcidin, iron, total iron binding capacity, transferrin saturation), were analyzed according to baseline iron levels. In the cefiderocol and meropenem arms, 79.1% (117/148) and 83.3% (125/150) randomized patients, respectively, had low baseline serum iron levels. Rates of 14-day (12.3% [14/114] vs 11.6% [14/121]) and 28-day all-cause mortality (20.5% [23/112] vs 19.0% [23/121]), clinical cure (63.2% [72/114] vs 67.2% [82/122]), and microbiological eradication (43.6% [41/94] vs 48.1% [51/106]) at test of cure were similar in cefiderocol vs meropenem arms, respectively. In the overall safety population, rates of anemia-related adverse events were similar (cefiderocol arm 18.2% [27/148], meropenem arm 18.7% [28/150]). Changes from baseline to test of cure in hepcidin, iron, total iron binding capacity, and transferrin saturation were similar between treatment arms. Cefiderocol treatment did not affect iron homeostasis, and its efficacy and safety were not influenced by baseline serum iron levels. Clinicaltrials.gov registration: NCT03032380. Date of registration: 26 January 2017.

Serum iron and total iron-binding capacity compared with serum ferritin in assessment of iron deficiency.

1981 ◽  
Vol 27 (2) ◽  
pp. 276-279 ◽  
Author(s):  
F Peter ◽  
S Wang
Keyword(s):  
Iron Deficiency ◽  
Serum Ferritin ◽  
Serum Iron ◽  
Binding Capacity ◽  
Transferrin Saturation ◽  
Total Iron ◽  
Iron Binding ◽  
Total Iron Binding Capacity ◽  
Iron Deficient ◽  
Iron Binding Capacity

Abstract Ferritin values for 250 selected sera were compared with values for iron, total iron-binding capacity (TIBC), and transferrin saturation, to assess the potential of the ferritin assay for the detection of latent iron deficiency. The specimens were grouped (50 in each group) according to their values for iron and TIBC. In Group 1 (low iron, high TIBC) the saturation and ferritin values both indicated iron deficiency in all but one. In the 100 specimens of Groups 2 (normal iron, high TIBC) and 4 (normal iron, high normal TIBC), the saturation values revealed 16 iron-deficient cases, the ferritin test 55. For Groups 3 (low iron, normal TIBC) and 5 (low iron, low TIBC), the ferritin test revealed fewer cases of iron deficiency than did the saturation values (37 cases vs 51 cases, in the 100 specimens). Evidently the ferritin test detects iron deficiency in many cases for whom the serum iron and TIBC tests are not positively indicative. The correlation of serum ferritin with iron, TIBC, and transferrin saturation in the five groups was good only in the case of specimens for which the TIBC was normal; if it was abnormal the correlation was very poor.

Influence of hepcidin on iron homeostasis during last trimester of gestation in Bos indicus (cattle)

2019 ◽  
Author(s):  
K. Rajamanickam ◽  
M. Sameer Ali ◽  
V. Leela
Keyword(s):  
Serum Iron ◽  
Iron Homeostasis ◽  
Binding Capacity ◽  
Colorimetric Method ◽  
Maternal Serum ◽  
Iron Bioavailability ◽  
Iron Level ◽  
Iron Binding ◽  
Serum Iron Level ◽  
Iron Binding Capacity

Hepcidin is an important hormone regulating the systemic iron bio-availability. Blood samples were collected from thirty pregnant cattle during their last trimester of pregnancy to assess the relation of hepcidin to iron homeostasis. Serum hepcidin level was quantified using ELISA and serum iron, transferrin iron binding capacity and unsaturated iron binding capacity were estimated by colorimetric method. Correlation between hepcidin and other iron related parameters was assessed. Dependency of serum iron level on hepcidin was also determined by regression method. It was revealed that hepcidin was negatively correlated to serum iron and transferrin iron binding capacity (p less than 0.001) and also hepcidin has highest predictive value on serum iron level and transferrin iron binding capacity (p less than 0.001). It can be concluded that during pregnancy increase in hepcidin reduces the maternal serum iron and also it is a biomarker for iron bioavailability to the developing fetus.

scholarly journals Gambaran status besi pada pasien penyakit ginjal kronik stadium 5 dengan anemia yang menjalani hemodialisis reguler

e-CliniC ◽  
2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Bryan J. Silaban ◽  
Cerelia Sugeng ◽  
Bradley J. Waleleng
Keyword(s):  
End Stage Renal Disease ◽  
Serum Iron ◽  
Binding Capacity ◽  
Transferrin Saturation ◽  
Total Iron ◽  
Iron Binding ◽  
Total Iron Binding Capacity ◽  
Stage Renal Disease ◽  
End Stage ◽  
Iron Binding Capacity

Abstract: Chronic kidney disease (CKD) is a pathological condition with a variety of etiology, resulting in progressively decreased renal function which is often ended with kidney failure. Chronic kidney disease has a global prevalence of 800 per million of population and the incidence of end-stage renal disease ranges from 150 to 200 per million of population. Complications often occur at the end-stage renal disease inter alia anemia with a rate of 80-90%. This study was aimed to obtain the profile of stage-5 CKD patients with anemia and regular hemodialysis was performed on them. This was a descriptive-retrospective study using data of medical records at Prof. Dr. R. D. Kandou General Hospital from January 2015 to October 2016. There were six observed variables as follows: age, gender, serum iron (SI), total iron binding capacity (TIBC), transferrin saturation, and ferritin. The results showed that of the 48 CKD patients with anemia, there were 24 males and 24 females. The majority were aged 60-69 years (33%) and had normal SI level in 30 patients (67%); decreased TIBC in 35 patients (75%); normal transferrin saturation in 26 patients (54%); and increased ferritin level in 38 patients (81%). Conclusion: Majority of the patients were 60-69 years old and had normal level of SI, decreased TIBC, normal transferrin saturation, and increased levels of ferritin. There was no difference in case number of both sexes.Keywords: serum iron, total iron binding capacity, transferrin saturation, ferritin Abstrak: Penyakit Ginjal Kronik (PGK) adalah suatu keadaan patologis dengan etiologi yang beragam, terjadi penurunan fungsi ginjal secara progresif, dan biasanya berakhir dengan gagal ginjal. Penyakit ginjal kronik merupakan salah satu masalah kesehatan di dunia dengan prevalensi 800 per juta populasi dan insidensi end-stage renal disease (ESRD) 150-200 per juta populasi di dunia. Komplikasi sering terjadi pada PGK stadium akhir antara lain anemia dengan persentase mencapai 80-90%. Penelitian ini bertujuan untuk mendapatkan profil pasien PGK stadium 5 dengan anemia dan menjalani hemodialisis reglular. Jenis penelitian ialah deskriptif-retrospektif menggunakan data sekunder dari catatan rekam medik periode Januari 2015 – Oktober 2016 di RSUP Prof. Dr. R. D. Kandou Manado dengan enam variabel penelitian, yaitu usia, jenis kelamin, serum iron (SI), total iron binding capacity (TIBC), saturasi transferin, dan feritin. Dari 48 data rekam medik pasien yang memenuhi kriteria inklusi ditemukan bahwa mayoritas pasien berumur 60-69 tahun (33%), laki-laki maupun perempuan berjumlah sama, mayoritas pasien memiliki kadar SI normal berjumlah 30 pasien (67%), kadar TIBC menurun berjumlah 35 pasien (75%), saturasi transferin normal berjumlah 26 pasien (54%), dan kadar feritin meningkat berjumlah 38 pasien (81%). Simpulan: Mayoritas pasien PGK stadium 5 yang menjalani hemodialisis reguler berusia 60-69 tahun, laki-laki dan perempuan berjumlah sama, serta memiliki kadar SI normal, penurunan TIBC, saturasi transferin normal, dan peningkatan kadar feritin. Kata kunci: serum iron, total iron binding capacity, saturasi transferin, feritin

scholarly journals Prevalence and associated risk factors of iron deficiency without anemia among school adolescents in Mbouda, Western Cameroon

2022 ◽  
Author(s):  
Odile Tadzong Mamokem ◽  
Wiliane Jean Takougoum Marbou ◽  
Marie Modestine Kana Sop ◽  
Bruno Phélix Telefo
Keyword(s):  
Risk Factors ◽  
Iron Deficiency ◽  
Serum Iron ◽  
Binding Capacity ◽  
Transferrin Saturation ◽  
School Site ◽  
Mean Values ◽  
Significant Difference ◽  
Associated Risk Factors ◽  
Iron Binding Capacity

Background: Adolescents are a particularly vulnerable age group to iron deficiency without anemia (IDWA). This study aimed at determining the prevalence and associated risks factors of IDWA among apparently healthy school teenagers in Mbouda, West-Cameroon.Methods: The 778 blood samples were randomly collected from adolescents aged 10-19 years of four schools in Mbouda. Appropriate indicators including haemoglobin and haematocrit, serum iron, ferritin, transferrin, and total iron binding capacity, transferrin saturation were determined using standard methods.Results: The overall prevalence of IDWA was 40.4%. High significant difference in the mean values of serum iron (p≤0.001), serum ferritin (p≤0.001), TIBC (p=0.007), CST (p≤0.001) were observed in participants with IDWA compared to those without IDWA. The sociodemographic risk factors of IDWA in school adolescents were school site (p=0.022; 0.14 (0.90-1.43) and period of menstruation (p=0.015; 1.48 (1.083-2.03). Consumption of roots-tubers [OR: 0.92 (0.48-1.77)] legumes [OR: 2.65 (1.91-3.67)], cereals [OR: 0.90 (0.67-1.22)], increased the risk of IDWA while consumption of vegetables [OR: 0.29 (0.22-0.39)], eggs [OR: 0.66 (0.49-0.90)], and fish-shrimp [OR: 0.172 (0.10-0.295)] decreased the risk of IDWA. Meal consumption frequency had a statistically significant association with IDWA (p≤0.001).Conclusions: This study identified that IDWA was a major public health in adolescents. This study will help in planning and implementation of the policy for prevention of IDWA in adolescents.

scholarly journals Changes in Serum Iron, Total Iron Binding Capacity and Transferrin Saturation Percent in Sudanese Females Newly Diagnosed with Breast Cancer at Khartoum Oncology Hospital: A case- control study

2017 ◽  
Vol 12 (3) ◽  
pp. 119
Author(s):  
Rufaida Mustafa Ahmed Mustafa ◽  
Nazik Elmalaika Obaid Seid Ahmed Husain
Keyword(s):  
Breast Cancer ◽  
Serum Iron ◽  
Case Control Study ◽  
Binding Capacity ◽  
Transferrin Saturation ◽  
Case Control ◽  
Newly Diagnosed ◽  
The Mean ◽  
Iron Binding Capacity ◽  
Control Study

Background:Iron is a vital constituent of cells but in excess may be harmful and is associated with a raised risk for some malignant diseases including breast cancer. We aimed to study changes in iron profile in Sudanese females newly diagnosed with breast cancer.Methods: A case- control study in which serum iron, Total Iron Binding Capacity (TIBC), and transferrin saturation percent were measured for fifty females with breast cancer referred to Khartoum Oncology Hospital and seventy apparently healthy females, using manual method (IRON-FERROZINE).  Results: Mean age was 47years and 42years in cases and control, respectively and the mean of parity was 4 in both groups. Mean of serum iron ±SD in case group was 244.30 ± 151.598(µg/dL)and in control group was 57.59 ± 43.191(µg/dL) (P. value = 0.000). Mean of TIBC ±SD in cases was 412.98 ± 177.460(µg/dL)and in controls it was 403.71 ± 168.765(µg/dL) (P.value = 0.838). The mean of transferrin saturation percent ± SD in cases was 61.08 % ±41.523 and in controls was 223.23 % ±149.195 (P.value=0.000). The mean of TIBC in grade I 343.00(µg/dL), 467.10(µg/dL) in grade II and 321.25(µg/dL) in grade III (P.value 0.019).Conclusion: There is a statistically significant increase in the mean of serum iron and decrease in transferrin saturation percent in women with breast cancer. TIBC vary significantly according to histopathological grade. Serum iron and transferrin saturation percent may be helpful as biochemical risk markers for breast cancer and TIBC may act as a predictor of disease grade.

scholarly journals The U-shaped association of serum iron level with COVID-19 severity: Is iron a potential therapeutic target?

2021 ◽  
Author(s):  
Kentaro Tojo ◽  
Yoh Sugawara ◽  
Yasufumi Oi ◽  
Fumihiro Ogawa ◽  
Takuma Higurashi ◽  
...  
Keyword(s):  
Disease Severity ◽  
Serum Iron ◽  
Binding Capacity ◽  
Transferrin Saturation ◽  
University Hospital ◽  
Iron Level ◽  
Inadequate Response ◽  
Serum Iron Level ◽  
Median Serum ◽  
Iron Binding Capacity

AbstractObjectiveTo evaluate the association between iron metabolism indicators and disease severity in hospitalized patients with coronavirus disease 2019 (COVID-19).DesignTwo-center observational studySettingA university hospital and a core hospital in Yokohama, JapanPatientsAdults with COVID-19 whose serum iron levels were measured within the first 5 days of hospitalization were included. Patients who refused mechanical ventilation were excluded from the study.Measurements and Main ResultsOne hundred thirty-six patients were included in this study. We analyzed the association between COVID-19 severity and serum iron, total iron binding capacity (TIBC), and transferrin saturation (TSAT) levels. Disease severity was defined as the worst respiratory status during hospitalization. Serum iron levels were significantly lower in patients with mild respiratory failure (RF) (n=55, median serum iron level: 24 [interquartile range: 19–42] mg/dL) than in the non-RF group (n=44, 40 [24–80] mg/dL) and the severe RF group (n=37, 60 [23.5–87] mg/dL); however, there were no significant differences in iron levels between the non-RF and severe RF groups (non-RF vs. mild RF: p=0.019, non-RF vs. severe RF: p>0.999, and mild RF vs. severe RF: p=0.009). That is, there was a U-shaped association between serum iron levels and disease severity. TIBC levels decreased significantly with increasing severity; consequently, TSAT was significantly higher in patients with severe RF than in other patients. Multivariate analysis including only patients with RF adjusted for age and sex demonstrated that higher serum iron or TSAT levels were independently associated with development of severe RF.ConclusionsA U-shaped association between serum iron level and RF severity in hospitalized COVID-19 patients was observed. Higher serum iron levels in COVID-19 patients with RF are associated with the development of severe RF, indicating that inadequate response to lower serum iron might be an exacerbating factor for COVID-19.

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