scholarly journals Comparative analysis of ceruloplasmin level in biological fluids at herpes infection

2013 ◽  
Vol 94 (5) ◽  
pp. 752-754
Author(s):  
N A Terekhina ◽  
S E Reuk ◽  
T I Atamanova
Keyword(s):  
Blood Serum ◽  
Oral Fluid ◽  
Biological Fluids ◽  
Adult Patients ◽  
Control Group ◽  
Healthy Individuals ◽  
Herpes Infection ◽  
Oral Fluids ◽  
Ceruloplasmin Level ◽  
Severity Of The Disease

Aim. To compare the levels of ceruloplasmin in tears, saliva and blood serum of patients with herpetic stomatitis and eye herpes to evaluate the effectiveness of treatment. Methods. Ceruloplasmin levels were determined in tears, saliva and blood serum of 30 children, 22 adult patients with herpetic keratitis and 27 children with acute herpetic stomatitis. Biological fluids of 62 healthy individuals were used as the control group. Results. In patients with eye herpes infection, сeruloplasmin levels increased in oral fluid and blood serum and markedly decreased in tears of both affected and intact eye. Ceruloplasmin levels in biological fluids normalized only among children with light forms of eye herpes at discharge. In the case of acute herpetic stomatitis, ceruloplasmin levels increased in oral fluid and blood serum, depending on the severity of the disease. After the treatment, ceruloplasmin levels in tears, oral fluid and blood plasma normalized only in children with dendritic ulcer (herpes epithelial keratitis), while in adult patients with chronic relapsing eye herpes and in children with highly invasive eye herpes ceruloplasmin levels did not normalize. Conclusion. In the case of infection detected multidirectional ceruloplasmin levels in tears, oral fluids and blood serum changes were found in patients with herpes. Ceruloplasmin level decreased in tears, and increased in blood serum and oral fluid.

scholarly journals METHODOLOGICAL ISSUES OF DETERMINING CONCENTRATIONS OF SOME CYTOKINES IN PERIPHERAL MBLOOD FROM HEALTHY INDIVIDUALS

2018 ◽  
Vol 20 (5) ◽  
pp. 763-774
Author(s):  
N. A. Arsentieva ◽  
Areg A. Totolian
Keyword(s):  
Blood Serum ◽  
Large Scale ◽  
Human Peripheral Blood ◽  
Biological Fluids ◽  
Control Group ◽  
Healthy Individuals ◽  
Serum Samples ◽  
Normal Ranges ◽  
Number Of Patients ◽  
Cytokine Levels

Cytokines are the most important factors in pathogenesis of infectious, allergic, autoimmune, lymphoproliferative diseases and immunopathological processes. Many cytokines are very useful therapeutic targets for immunodiagnostics of different human diseases. Measurement of the cytokine levels by immunochemical methods in various biological fluids is usually used for diagnostic evaluation. Content analysis of research articles from two Russian immunological journals, “Meditsinskaya Immunologiya” = “Medical Immunology (Russia)” and “Infektsiya i immunitet” = “Russian Journal of Infection and Immunity,”, shows that ELISA, xMAP multiplex immunoassay, and CBA technologies are the most common methods used in clinical and immunological studies aimed for determination of cytokine contents in blood serum/plasma. Normal ranges of some plasma/serum cytokines in healthy individuals were subject to wide variations when using different methods and specific reagents from various manufacturers. The normal ranges applied by the CBA-technology, are significantly higher than appropriate values obtained by ELISA or xMAP-technologies. Most studies included a small control group, usually limited by 15-20 persons. In most of these works, blood serum samples were used for assays, whereas EDTA-conserved plasma was taken only in few studies. It has been concluded that the results of cytokine measurements in blood serum/plasma in healthy individuals vary in wide ranges, and depend on many factors, e.g., initial sampling material, mode of technology, type of test systems, and characteristics of the group under study: number of patients, age, gender, geographical factor, etc. The mentioned data demonstrate a need for large-scale multicenter clinical studies, in order to standardize measurements of the cytokine levels in human peripheral blood and to specify their normal values.

Clinical and Diagnostic Value of Cardiac Markers in Human Biological Fluids

Kardiologiia ◽  
2019 ◽  
Vol 59 (11) ◽  
pp. 66-75 ◽  
Author(s):  
A. M. Chaulin ◽  
L. S. Karslyan ◽  
E. V. Bazyuk ◽  
D. A. Nurbaltaeva ◽  
D. V. Duplyakov
Keyword(s):  
Blood Serum ◽  
Oral Fluid ◽  
Biological Fluids ◽  
High Sensitivity ◽  
Diagnostic Value ◽  
Cardiac Markers ◽  
Methods Of Analysis ◽  
Clinical Diagnostic

The article is devoted to problems of clinical-diagnostic value of determination of cardio-specific troponins in human biological fluids. Improvement of laboratory instrumentation and emergence of high sensitivity methods of analysis have allowed to identify troponins in urine, dialysate, and oral fluid. In the review we present actual information related to measurement of troponins in blood serum, data on testing of cardio-specific troponins in urine, dialysate, and oral fluid. Special attention is paid to determination of some cardiomarkers in oral fluid with thorough analysis of diagnostic value and effectiveness of the conducted studies.

scholarly journals Exploring methodologies to obtain the metabolomic profile of biological fluids by LC/MS-MS

2019 ◽  
Author(s):  
Flavia Presta Filliettaz ◽  
Ana Valeria Colnaghi Simionato Cantu ◽  
Gustavo H. B. Duarte ◽  
Marcos N. Eberlin ◽  
Ronei J. Poppi
Keyword(s):  
Sample Preparation ◽  
Blood Serum ◽  
Biological Fluids ◽  
Tumor Biomarkers ◽  
Healthy Individuals ◽  
Metabolomic Profile ◽  
Ionization Source ◽  
Molecular Features

The investigation of methodologies to obtain the metabolomic profile of blood serum from healthy individuals by LCMS/MS was performed by factorial planning and the number of molecular features as the system answer. Sample preparation, chromatographic and ionization source conditions were optimized, defining the best conditions to obtain the metabolomic profile of biofluids to be applied in future identification of potential tumor biomarkers.

scholarly journals Evaluation of IL-2, IL-10, IL-4 and ɤ-interferon levels in the oral fluids of patients with hepatitis C, B and HIV

2019 ◽  
Vol 13 (05.1) ◽  
pp. 069S-074S
Author(s):  
Vahe Azatyan ◽  
Lazar Yessayan ◽  
Melanya Shmavonyan ◽  
Gayane Melik-Andreasyan ◽  
Anush Perikhanyan ◽  
...  
Keyword(s):  
Hepatitis C ◽  
Oral Fluid ◽  
Control Group ◽  
Local Immunity ◽  
Oral Fluids ◽  
Significant Difference ◽  
B Virus ◽  
Immunodeficiency Virus ◽  
Cytokine Levels ◽  
And Control

Introduction: Oral fluid cytokine levels can vary considerably during the onset of Inflammatory Periodontitis (IP) especially in people with hepatitis C virus (HCV), hepatitis B virus (HBV) and human immunodeficiency virus (HIV). Aim of our study was to evaluate levels of oral cytokines during the onset of IP among HCV, HBV and HIV negative and positive individuals in order to evaluate local immunity state during these infections. Methodology: This was a case control study with 3 groups of virally infected individuals and control group. All had IP including control group. Results: 45 patients (51.7%) had HCV, 18 (20.7%) HBV and 24 (27.6%) HIV. For IL-2 we received significant difference for all groups compared with control -2.83; HBV-31.1 (p < 0.001), HCV-25.99 (p < 0.001) and HIV-24.57 (p < 0.001). For IL-10 significant difference was observed between control -0.94 and HCV-3.63 (p = 0.027), HBV-8.38 (15.51) groups (p < 0.001). IL-4 was significantly higher in control group 14.29 compared to HCV 0.2 (p < 0.001) and HIV 0.21 (p = 0.037) group. The adjusted analysis where we consider age as possible confounder revealed that only IL-2 significantly differs for all groups compared with control group: control vs HCV (p = 0.001); control vs HBV (p = 0.024); control vs HIV (p = 0.004). Conclusions: Evidence for significant differences when comparing oral fluid cytokines of individuals with HCV, HBV and HIV with non-viral individuals was more obvious for IL-2. IL-2 levels were significantly higher in all 3 groups vs non-viral group even when age is confounder.

scholarly journals STUDY OF INDICATORS OF ANTIMICROBIAL RESISTANCE IN PATIENTS WITH ALLERGODERMATOSIS, СОMPLICATED BY STAPHYLOCOCCUS INFECTION, ACCORDING TO THE RESULTS OF TESTS WITH AUTOSTRAINS

2021 ◽  
pp. 73-80
Author(s):  
Yanina Kutasevych ◽  
Svetlana Dzhoraieva ◽  
Valentinа Goncharenko ◽  
Irina Maschtakova ◽  
Helen Shchogoleva ◽  
...  
Keyword(s):  
Antimicrobial Resistance ◽  
Cellular Level ◽  
Staphylococcal Infection ◽  
Nitroblue Tetrazolium ◽  
Control Group ◽  
Disease Course ◽  
Healthy Individuals ◽  
Nonspecific Immunity ◽  
Severity Of The Disease ◽  
Antimicrobial Immunity

Abstract. The relevance of the study is due to the lack of data on the state of nonspecific cellular immunity in studies with sera and autostrains of S. aureus isolated from patients with allergic dermatoses, which would reflect the intensity of antimicrobial immunity in patients with allergic dermatoses, aggravated by staphylococcal infection, depending on the severity of dermatosis. The aim of the study was to determine and analyze the results of antimicrobial immunity indicators in patients with atopic dermatitis and true eczema, aggravated by staphylococcal infection, using sera and autostrains of S. aureus, depending on the severity of the disease. Material and methods. It was included 107 patients with different stage of the allergic dermatoses severity and control group of 15 healthy individuals to the research . The patients were divided into 3 groups in according to the severity of cutaneous process course. There were determined the basic indices of initial stages of phagocytosis and oxydepending bactericidal activity of the phagocytes. It was conducted the immunologic examinations using the autostrains patient from the locus morbi and standard strain S. aureus ATCC for the estimation of antimicrobial immunity. Results. Evaluation of phagocytosis indices in patients with allergodermatosеs showed a correlation between the severity of the disease course and the level of inhibition of the cellular level of nonspecific immunity. According to the results of studies using autostrains S. aureus, the most significant inhibition of phagocytosis (p ≤ 0,05), compared to the values of similar indicators in the control group of healthy individuals, it was found in the groups of patients with moderate and severe atopic dermatosis (AD) course, respectively: phagocytic activity (PhА) (78,1 ± 1,4) and (72,4 ± 1,4) and (71,7 ± 0,8) %; phagocytic number___ (PhN) (5,3 ± 0,2) and (4,3 ± 0,2) and (3,5 ± 0,1) absolute number (abs. num.); phagocytic index__ (PhI) (6,8 ± 0,2) and (6,2 ± 0,2) and (4,8 ± 0,1) abs. num.; phagocytic capacity (PhC) (30,3 ± 1,0) and (26,5 ± 1,8) and (22,6 ± 0,8) ×103 microbial cell /mm3; spontaneous test of the renovation of nitroblue tetrazolium (sNBT) (42,1 ± 1,3) and (48,1 ± 1,2) and (50,6 ± 0,3) %; induction test of the renovation of nitroblue tetrazolium (іNBT) (63,4 ± 1,6) and (53,4 ± 0,8) and (51,7 ± 0,7) %. In the patients with true eczema (TE), they revealed a similar regularity of phagocytosis inhibition, most pronounced in patients with a severe disease course (p ≤ 0,05), but with a slightly smaller degree of difference between the indicator values of phagocytosis compared with the group of healthy individuals, respectively: PhА (74,8 ± 1,3) and (78,1 ± 1,4) %; PhN (4,5 ± 0,1) and (5,3 ± 0,2) abs. num.; PhI (5,9 ± 0,2) and (6,8 ± 0,9) abs. num.; sНСТ (46,0 ± 0,6) and (42,1 ± 1,3) %; іНСТ (51,8 ± 0,8) and (63,4 ± 1,6) %. Conclusions. The results of identification of phagocytosis in patients with allergodermatosеs using the standard culture of S. aureus ATCC 25923 generally reflect the described regularities of inhibition in patients of the cellular level of nonspecific immunity, but are less presentable for their identification in comparison with the autostrains. Keywords: allergic dermatoses, severity of the course, S aureus autostrains, S. aureus ATCC 25923, antimicrobial resistance.

scholarly journals Diagnostic benefits of mindin as a prostate cancer biomarker

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Lenka Hanousková ◽  
Jakub Řezáč ◽  
Štĕpán Veselý ◽  
Richard Průša ◽  
Karel Kotaška
Keyword(s):  
Prostate Cancer ◽  
Matrix Protein ◽  
Diagnostic Marker ◽  
Extracellular Matrix Protein ◽  
Control Group ◽  
Healthy Individuals ◽  
Lung Cancers ◽  
The Difference ◽  
Severity Of The Disease ◽  
Stage 1

Summary Background It has been shown that decreased expression and activity of extracellular matrix protein mindin correlate with various types of cancers including breast, colon and lung cancers. The aim of the presented study was to investigate the serum mindin levels in prostate cancer. Methods Mindin concentrations in serum were measured in 56 patients with prostate cancer (mean age 68 years) and in control group of 29 healthy men (mean age 64 years) using commercially available enzymatic immunoassay (Cusabio, WuHan, China). The patients were divided with respect to the severity of the disease into two groups according to the EAU guidelines (stage 1, 2 – less severe tumours, stage 3, 4 – severe tumours). Results Serum mindin concentrations were significantly elevated in the group of healthy individuals unlike in the patients with prostate cancer (2.12 ng/mL vs 0.78 ng/mL, with P=0.0007, AUC=0.705). Patients with less severe tumours (stage 1, 2) and severe tumours (stage 3, 4) had significantly decreased levels of S-mindin as well (P=0.0037), although the difference in serum mindin concentrations between the patients with less severe and severe tumours was not significant. Conclusions Concentrations of mindin were decreased in patients with prostate cancer and reduced in patients with less severe prostate cancer as well. Mindin appears to be a promising diagnostic marker useful in the diagnosis of prostate cancer.

scholarly journals POS0451 SERUM FETUIN-A AND VISFATIN LEVELS IN WOMEN WITH RHEUMATOID ARTHRITIS DEPENDING ON DISEASE ACTIVITY

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 455.2-456
Author(s):  
Y. Akhverdyan ◽  
В. Zavodovsky ◽  
E. Papichev ◽  
J. Polyakova ◽  
L. Seewordova
Keyword(s):  
Rheumatoid Arthritis ◽  
Blood Serum ◽  
Disease Activity ◽  
Transforming Growth Factor ◽  
Average Level ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Healthy Individuals ◽  
Fetuin A ◽  
Grade Ii

Background:In recent years, the systemic effects of a number of cytokines have been actively studied, in particular, fetuin-A is considered a negative protein of the acute phase response, and visfatin, on the contrary, affects the activation of the cytokine cascade and has a pro-inflammatory effect. Taking into account that women suffer from rheumatoid arthritis (RA) more often, we investigated the levels of fetuin-A and visfatin in the blood serum of females in comparison with a group of healthy individuals and depending on the activity of the disease.Objectives:to study the levels of fetuin-A and visfatin in the blood serum of women suffering from RA, depending on the activity of the diseaseMethods:The study included 110 women with RA and 30 apparently healthy individuals. The inclusion criteria were: a diagnosis of RA verified based on the criteria of the American College of Rheumatology/European Anti-Rheumatic League (ACR/EULAR) 2010. The patients’ age ranged from 18 to 90 years. The control group included 30 conventionally healthy individuals. Serum fetuin-A and visfatin levels were determined by indirect enzyme-linked immunosorbent assay using commercial kits. RA activity was determined by the DAS28-CRP index. Activity 0-I was in 33 (30%) patients, grade II in 67 (60.9%), grade III in 10 (9.09%) patients.Results:The normal level of fetuin-A was calculated using the formula M±2σ in the group of conventionally healthy individuals and ranged from 653.55 to 972.19 μg/ml. In patients with grade 0-I RA activity according to DAS28, the mean serum fetuin-A level was 843.92±130.73 μg/ml, in patients with grade II activity - 742.37±98.85 μg / ml, with III the degree of activity - 663.9±123.7 μg/ml (p<0.001).The average level of visfatin in the blood serum in healthy individuals was 2.43±0.17 ng/ml. The level of normal values of visfatin in healthy individuals, defined as M±2σ, ranged from 0 to 5.07 ng/ml. The average level of visfatin in patients with RA was 6.27±0.18 ng/ml, which is significantly higher than in healthy individuals (p<0.001).In patients with 0-I degree of RA activity according to DAS28, the average level of visfatin in blood serum was 4.94±0.02 ng/ml, in patients with degree II activity - 5.08±0.02 ng/ml, with III degree of activity - 6.82±0.23 ng/ml (p<0.001).Conclusion:Thus, the level of fetuin-A in the blood serum of patients with RA is significantly lower in the case of a high degree of disease activity. The level of visfatin in the blood serum in women with RA is significantly higher in patients with a higher degree of disease activity. Therefore, the concentration values of fetuin-A and visfatin in the blood serum of patients with RA can be used in an integrated assessment of the prognosis of disease activity.References:[1]Inoue K, Ikeda Y, Yamanaka S, et al. Serum fetuinA levels in patients with rheumatoid arthritis [abstract]. Atherosclerosis. 2002;9(Suppl 1):233. doi: 10-1016/s1567-5688(08)70930-9[2]Janssens K, ten Dijke P, Janssens S, et al. Transforming growth factor-beta1 to the bone. Endocrine Reviews. 2005;26(6):743-74. doi:10.1210/er.2004-0001[3]Polyakova J, Korolik O, Papichev E, et al. The role of «new» cytokines in the pathogenesis rheumatoid arthritis. Ann Rheum Dis. 2018; 78(2): 1497Disclosure of Interests:None declared

scholarly journals ASSESSMENT OF THE LEVEL OF APOPTOSIS MARKER ANNEXIN A5 AND THE VALUE OF DENTAL INDICES IN OF VARYING SEVERITY WITHOUT GENERAL SOMATIC PATHOLOGY AND WITH BRONCHIECTATIC DISEASE

2019 ◽  
Vol 15 (3) ◽  
pp. 56-61 ◽  
Author(s):  
Артем Саркисов ◽  
Artem Sarkisov ◽  
Владимир Зеленский ◽  
Vladimir Zelenskiy ◽  
Екатерина Полунина ◽  
...  
Keyword(s):  
Oral Fluid ◽  
Predictive Marker ◽  
Modern Medicine ◽  
Control Group ◽  
Annexin A5 ◽  
Healthy Individuals ◽  
Periodontal Tissues ◽  
Severe Periodontitis ◽  
Light Medium ◽  
Apoptosis Marker

Background. The study of the features of the course and the general links of pathogenesis in patients with chronic generalized periodontitis (CGP) with comorbid pathology is one of the priorities of modern medicine. Objectives ― to assess and analyze the level of apoptosis marker annexin A5 and the value of dental indices in patients with CGP of varying severity without General somatic pathology and against the background of bronchiectatic disease Methods. The study involved 90 patients with present study included varying degrees (light, medium, heavy), which were divided into two groups: patients with no somatic pathology (n=40) and patients with comorbid pathology in the form of bronchoectatic disease (n=50). Somatically healthy individuals with intact periodontal disease (n=40) were examined as a control group. The values of dental indices – PMA, PI, Muhlemann and OHI-s. The level of annexin A5 was determined in the oral fluid by enzyme immunoassay. Results. In patients with CGP revealed a statistically significant higher value of the level of annexin A5 compared with somatically healthy individuals with intact periodontal and statistically significantly higher in patients with more severe periodontitis. At the same time, in patients with comorbid pathology, the level of annexin A5 in patients with CGP with bronchoectatic disease with mild, average and heavy degree of periodontitis is statistically significantly higher than in patients with CGP without somatic pathology. The revealed relationships between the value of dental indices and the level of annexin A5 indicate the influence of the studied marker of apoptosis on the state of periodontal tissues. Moreover, the patients with comorbidity the power value of the identified links more than the present study included patients with no somatic pathology. Conclusion. The obtained data show the influence on the currents present study included the presence of comorbid pathology in the form of bronchoectatic disease and presence of common mutually aggravating link of pathogenesis of apoptosis and the opportunity to use annexin A5 as predictive marker of progression, as the present study included patients with no somatic pathology and in the background bronchoectatic disease.

scholarly journals Interleukin-31 new biomarker of infectious skin diseases

2021 ◽  
Keyword(s):  
Hiv Infection ◽  
Blood Serum ◽  
Healthy Subjects ◽  
Skin Diseases ◽  
Opportunistic Infections ◽  
Clinical Stage ◽  
Control Group ◽  
Healthy Individuals ◽  
Herpesvirus Infection ◽  
Infectious Skin Diseases

Introduction. The introduction of antiretroviral therapy has significantly improved the long-term prognosis of AIDS patients, but opportunistic infections can still be life-threatening for this population. Among them, a large group constitutes of herpesvirus infections, which are frequent manifest forms of dermatological manifestations of HIV. The researching of IL-31, as a prospective diagnostic predictor of dermatological diseases, has been actively conducted in recent years. This is due to the interest in its biological action, which extends primarily to the skin. Тhe identification of molecular targets underlying inflammatory and infectious dermatoses is promisingly for the development of new, targeted treatments. Objective: to study the role of IL-31 in the immunopathogenesis of herpesvirus infections associated with HIV infection. Research objectives: 1) to compare the levels of IL-31 in the blood serum in patients with herpesvirus skin diseases associated with HIV infection and in healthy subjects; 2) to determine the presence of a relationship between the levels of IL-31 in the blood serum and the clinical stage of the disease. Materials and methods. The study included patients with herpesvirus infection caused by HSV-1, HSV-2, VZV-3, EBV and HHV-8 associated with HIV infection and healthy individuals. Serum IL-31 levels were measured by ELISA using commercial kits (Human IL-31 ELISA Kit, Abcam, Cambridge, MA, USA). Were collected the baseline clinical characteristics, assessment of the activity of the infectious process and the degree of immunosuppression. Results. Our study involved 39 patients with herpesvirus infection associated HIV and 31 patients of the control group. In patients with herpesvirus infection against the background of HIV infection, the average level of IL-31 in the blood serum was significantly higher than that of healthy subjects. Serum IL-31 levels in patients with herpesvirus infection did not differ significantly depending on the severity of the process and the degree of immunosuppression. Conclusion. The levels of IL-31 in the blood serum of patients with herpesvirus infection were differed by statistically significant validity in comparison with similar indicators of healthy individuals, which confirms its role in the pathogenesis of infectious skin diseases.

scholarly journals Endogenous Lactoferrin in the Assessment of Ferrokinetics in Children with Iron Deficiency States

2019 ◽  
pp. 44-50
Author(s):  
N. N. Klimkovich ◽  
G. P. Zubritskaya ◽  
E. I. Venskaya ◽  
A. G. Kutko ◽  
A. S. Skorobogatova ◽  
...  
Keyword(s):  
Iron Deficiency ◽  
Blood Serum ◽  
Biological Fluids ◽  
Laboratory Data ◽  
Deficiency Anemia ◽  
Control Group ◽  
Healthy Children ◽  
Physiological Mechanisms ◽  
Latent Iron Deficiency

Objective: to study the concentration of endogenous lactoferrin in children with iron deficiency states before and during the treatment. Material and methods . The clinical and laboratory data of 31 patients with iron deficiency states (24 patients with iron deficiency anemia and 7 with latent iron deficiency) aged 0-17 (the median age was 9.7) and 7 healthy children (the median age was 12.4) who made up the control group have been analyzed. Hemogram and biochemical blood test were done according to the standard method. The concentration of endogenous LF in the blood serum was determined by the method of enzyme immunoassay using commercial test systems for the quantitative determination of human LF in the biological fluids (Elabscience) on the universal VICTOR2TM analyzer (Perkin Elmer, USA). Results . The study of ferrokinetics and LF concentration in the blood serum of the children with iron deficiency states has been performed. It has been shown that the children with iron deficiency reveal an increased LF level in the blood serum, which has variable values depending on age. The highest levels of the serum LF content are characteristic of patients under the age of three months, which is associated with the physiological mechanisms of the adaptation process of the hematopoietic system in newborns and infants. The LF concentration in the blood serum associated with ferrotherapy is increased compared to the corresponding indices before the treatment. Conclusion . From the results of the study its follows that the content of LF in the blood serum increases in iron deficiency and is associated with ferrotherapy. The obtained results will be used in further research aimed at the diagnosis of iron deficiency and prediction of the response to iron therapy.

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