Association between Serum Ferritin Levels and Metabolic-associated Fatty Liver Disease in Adults:a Cross-sectional Study Based on the NHANES

Objective Ferritin,initially acting as an iron-storage protein,was found to be associated with metabolic diseases.Our study was designed to investigate the association between serum ferritin and metabolic-associated fatty liver disease(MAFLD)using data from the National Health and Nutrition Examination Survey(NHANES)of the United State of America.Methods A cross-sectional study was conducted,enrolling a total of 2145 participants from the NHANES in the 2017–2018 cycles.Hepatic steatosis and liver fibrosis were assessed by ultrasound images and several non-invasive indexes.Multiple regression analysis was conducted to determine the associations between serum ferritin concentration and MAFLD and liver fibrosis.Results The analysis revealed that participants with higher serum ferritin levels(Q3 and Q4 groups)had a higher prevalence of MAFLD than those with the lowest serum ferritin levels[Q3 vs.Q1:OR=2.17(1.33,3.53),P<0.05 in fatty liver index(FLI);Q4 vs.Q1:OR=3.13(1.91,5.13),P<0.05 in FLI].Additionally,participants with the highest serum ferritin levels(Q4 group)displayed a higher prevalence of liver fibrosis[Q4 vs.Q1:OR=2.59(1.19,5.62),P<0.05 in liver stiffness measurement;OR=5.06(1.12,22.94),P<0.05 in fibrosis-4 index],with significantly increased risk observed in participants with concomitant diabetes[OR=7.45(1.55,35.72),P=0.012].Conclusion Our study revealed that elevated serum ferritin levels are associated with a higher prevalence of MAFLD and advanced liver fibrosis in patients.Elevated serum ferritin levels combined with diabetes are important risk factors for liver fibrosis.

Study on The Method of Quantitative Analysis of Serum Ferritin and Soluble Transferrin Receptor with Protein Microarray Technology

Objective To establish and evaluate a protein serum ferritin （SF） and soluble transferrin receptor microarray method for combined measurement of （sTfR）. Methods Microarrayer was used to print both anti-SF antibodies I and anti-sTfR antibodies I on each protein microarray. Anti-SF antibodies II and anti-sTfR antibodies II were used as detection antibodies and goat antibodies coupled to Cy3 were used as antibodies Ill. The detection conditions of the quantitative analysis method for simultaneous measurement of SF and sTfR with protein microarray were optimized and evaluated. The protein microarray was compared with commercially available traditional tests with 26 serum samples. Results By comparison experiment, mouse monoclonal antibodies were chosen as the probes and contact printing was chosen as the printing method. The concentrations of SF and sTfR probes were 0.5 mg/mL and 0.5 mg/mL respectively, while those of SF and sTfR detection antibodies were 5 μg/mL and 0.36 μg/mL respectively. Intra- and inter-assay variability was between 3.26% and 18.38% for all tests. The regression coefficients comparing protein microarray with traditional test assays were better than 0.81 for SF and sTfR. Conclusion The present study has established a protein microarray method for combined measurement of SF and sTfR.

Serum ferritin levels in children with attention deficit hyperactivity disorder and tic disorder

BACKGROUND Iron plays an important role in neurodevelopmental functions in the brain.Serum ferritin levels are different in children with attention deficit hyperactivity disorder and tic disorder than in healthy children.AIM To explore the current status of iron deficiency in children with neurodevelopmental disorders and its sex and age effects.METHODS A total of 1565 children with attention deficit hyperactivity disorder(ADHD),1694 children with tic disorder(TD),93 children with ASD and 1997 healthy control children were included between January 1,2020,and December 31,2021 at Beijing Children's Hospital.We describe the differences in age levels and ferritin levels between different disease groups and their sex differences.The differences between the sexes in each disease were analyzed using the t test.The incidence rate of low serum ferritin was used to describe the differences between different diseases and different age groups.A chi-square test was used to analyze the difference in the incidence of low serum ferritin between the disease group and the control group.Analysis of variance was used for comparisons between subgroups,and regression analysis was used for confounding factor control.RESULTS A total of 1565 ADHD patients aged 5-12 years were included in this study,and the average serum ferritin levels of male and female children were 36.82±20.64μg/L and 35.64±18.56μg/L,respectively.A total of 1694 TD patients aged 5-12 years were included in this study,and the average serum ferritin levels of male and female children were 35.72±20.15μg/L and 34.54±22.12μg/L,respectively.As age increased,the incidence of low serum ferritin in ADHD and TD first decreased and then increased,and 10 years old was the turning point of rising levels.The incidence of ADHD with low serum ferritin was 8.37%,the incidence of TD with low serum ferritin was 11.04%,and the incidence of the healthy control group with low serum ferritin was 8.61%,among which male children with TD accounted for 9.25%and female children with TD accounted for 11.62%.There was a significant difference among the three groups(P<0.05).In addition,there were 93 children with ASD with an average serum ferritin level of 30.99±18.11μg/L and a serum ferritin incidence of 15.05%.CONCLUSION In conclusion,low serum ferritin is not a risk factor for ADHD or TD.The incidence of low serum ferritin levels in children with ADHD and TD between 5 and 12 years old decreases first and then increases with age.

Study on the Correlation between the Expression of Serum Ferritin and Gestational Diabetes Mellitus

Objective: To explore the relationship between serum ferritin (SF) and gestational diabetes mellitus (GDM), for providing new ideas to the prevention and treatment of GDM. Methods: All the pregnant women were selected in Yinan Maternal and Child Health-Care Hospital from December, 2015 to March, 2018 when they were having routine prenatal examination, According to the diagnostic criteria of GDM, 72 patients with GDM were selected as the case group and 72 normal pregnant women were randomly selected as the control group. Fasting venous blood was drawn from all subjects during the first trimester of pregnancy (11-13 weeks) and the second trimester of pregnancy (24-28 weeks). Fasting plasma glucose was measured by glucose oxidase assay and the expression level of SF was determined by electrochemical method. The application value of SF in GDM diagnosis was evaluated by ROC curve. Results: The levels of SF in the case group at early and middle stages are 49.6 ± 18.8 (μg/ml) and 39.8 ± 21.5 (μg/ml), which re 39.4 ± 15.2 (μg/ml) and 32.2 ± 17.6 (μg/ml) in the control group. The levels of SF in the case group were higher than those in the control group (p < 0.05) at early and middle stages. The curve (AUC) of SF level in the diagnosis of GDM was 0.895, p < 0.001; the Youden index was 0.651 and the optimum threshold was 38.6 ng/ml, with a sensitivity of 97.8% and a specificity of 67.3%. Conclusion: The expression level of SF in early pregnancy is correlated with the occurrence of GDM, which may be an important indicator for the prevention and monitoring of GDM.

Prognostic role of pretreatment serum ferritin concentration in lung cancer patients:A meta-analysis

BACKGROUND The association between pretreatment serum ferritin concentration(SFC)and long-term survival in lung cancer remains unclear now.AIM To identify the prognostic value of pretreatment SFC in lung cancer patients based on current evidence.METHODS The PubMed,EMBASE and Web of Science databases were searched from inception to May 29,2022 for relevant studies.The primary endpoint was overall survival(OS)and the hazard ratios(HRs)with corresponding 95%confidence intervals(CIs)were combined to assess the predictive role of pretreatment SFC for long-term survival of lung cancer patients.The data were then extracted and assessed on the basis of the Reference Citation Analysis(https://www.reference citationanalysis.com/).RESULTS Twelve retrospective studies involving 1654 patients were analyzed.The results manifested that increased pretreatment SFC was associated with worse OS(HR=1.09,95%CI:1.03-1.15,P=0.004).Subgroup analysis stratified by the country(China vs non-China)showed similar results.However,subgroup analysis stratified by tumor type revealed inconsistent results(lung cancer:HR=1.39,P=0.008;small cell lung cancer:HR=1.99,P=0.175;non-small cell lung cancer:HR=1.03,P=0.281).CONCLUSION Pretreatment SFC might serve as a promising prognostic indicator in lung cancer patients and elevated pretreatment SFC predicts worse prognosis.However,more high-quality studies with big sample sizes are still needed to further verify its prognostic value in lung cancer.

Analysis of Serum Ferritin Level and Its Clinical Value in Advanced Gastric Cancer

Objective: To investigate the concentration and clinical significance of serum ferritin (SF) in patients diagnosed with advanced gastric cancer before and after treatment. Methods: Forty patients with advanced gastric cancer diagnosed by cytology or pathology in our hospital were selected, including 25 males and 15 females, aged from 48 to 85 years, and the median age was 61.0 years. 40 healthy volunteers matched with age and education were selected as the control group. In order to study the changes of SF level in the treatment of advanced gastric cancer, we divided the patients into effective group (efficacy evaluation as partial remission or complete remission), ineffective group (efficacy evaluation as no remission) and recurrence group according to the efficacy after treatment. Then the difference of SF level between different groups and the relationship between SF level and curative effect were analyzed. There was no significant difference in gender and age among all groups. Results: The SF levels in the newly diagnosed group, stage III patient group and stage IV patient group were significantly higher than those in the control group. The level of SF in stage IV patients was significantly higher than that in stage III patients. There were significant differences in SF level between the effective treatment group, the newly diagnosed group and the ineffective treatment group, but there was no significant difference in SF level between the newly diagnosed group and the ineffective treatment group. Conclusion: SF level has a certain value in the auxiliary diagnosis of gastric cancer, and it also has a certain guiding significance for the evaluation of curative effect and prognosis after treatment.

Association of Red Meat Usual Intake with Serum Ferritin and the Risk of Metabolic Syndrome in Chinese Adults: A Longitudinal Study from the China Health and Nutrition Survey

Objective The present study aimed to investigate the association of red meat usual intake with metabolic syndrome(Met S),and explore the contribution of red meat usual intake to serum ferritin.Methods Based on the data from the longitudinal China Health and Nutrition Survey(CHNS),2,797 healthy adults aged 18–75 years without hypertension,diabetes,and Met S were selected in 2009 as subjects and follow-up studies were carried out till 2015.We used the National Cancer Institute(NCI)method to estimate the usual intake of foods.Multivariable logistic regressions were performed to evaluate the association between red meat usual intake and the risk of Met S.Quantile regression analysis was used to study the relationship between red meat consumption and serum ferritin levels.Results After adjusting for potential confounders,red meat,and fresh red meat were positively associated with the risk of Met S(RR=1.41,95%CI:1.05–1.90 and RR=1.37,95%CI:1.02–1.85,respectively).These relationships showed increasing trend(P<0.05).The level of serum ferritin increased significantly with the number of Met S components(P<0.05).The quantile regression analysis showed that red meat and fresh red meat usual intake had a significant positive association with serum ferritin levels across the entire conditional serum ferritin distribution(P<0.05).Processed red meat did not exhibit a similar association.Conclusion Higher red meat usual intake was associated with an increased risk of Met S and elevated serum ferritin levels.

RADIOIMMUNOASSAY OF SERUM FERRITIN LEVEL IN PATIENTS WITH RECURRENT APHTHOUS ULCERATION

The purpose of this study was to assess the correlation between iron deficiency and recurrent aphthous ulceration (RAU). Radioimmunoassay was used to examine the serum ferritin level (SFL) in 52 patients with RAU and in 54 controls. Both were divided into 2 groups in accordance with sex. The 36 female patients were subdivided into 3 age-groups as follows: 8 aged 22-24, 10 aged 25-34, and 18 aged 35-50 while the male patients were gathered as one single group aged 26-57. The subdivision was adapted similarly for the normal age-grouts. Although no significant difference in SFL was found between the male control and the male patient groups, differences between the female control and female patient groups showed highly significant which levels, with the ascendance of age, were P【0.001, P【0.005 and P【0.001, respectively. Also the difference between male and female control groups were significant (P【0.05). However, no significant differences in SFL were discovered among the 3 patient groups. 10 female patients with SFL【12ng/ml were tested with ferrous sulfate for one month, then their SFL was reexamined one week after the treatment. A highly significant difference in SFL was noted between the pre-ad post-treatment (P【0.001). 9 of them showed that the interval of recurrences were prolonged, the number of ulcers reduced, the pain less intensive and its duration shorter than those before the treatment. This study demonstrated that a singificant decrease in iron-storage occurred in female RAU patients. The authors concluded that the decrease SFL was possibly related to menstruation and child bearing.

Association between Intestinal Helminthiasis and Serum Ferritin Levels Among School Children

Background: Significant iron deficiency anaemia is a major concern in children with helminthiasis, because it may eventually contribute to the growing health challenges of severe anaemia This descriptive cross sectional study was carried out to determine the association between serum ferritin levels and intestinal helminthiasis among school children. Methods: A structured questionnaire was used to collect the study population data. Stool specimens were obtained and examined on the same day using the sedimentation method for identification of the parasite. Blood samples were also obtained for full blood count and serum ferritin measurement. Results: A total of 246 school children were studied with a response rate of 82%. The prevalence of intestinal helminthiasis was 29.7%. The different helminthes identified included Ascaris lumbricoides, Necator americanus, Trichuris trichiura, Strongyloides stercoralis. Of the population studied, 36.2% were anaemic, 15.9% had microcytosis, and 47.6% had hypochromia. The prevalence of ex-hausted iron stores was 3.7%. Serum ferritin levels were significantly lower in children with intestinal helminthiasis compared with controls. Conclusions: The findings in this study demonstrate an inverse re-lationship between intestinal helminthiasis and serum ferritin levels and this is more marked in pupils with hookworm infections. The control of intestinal hel-minthiasis and prevention of iron deficiency anaemia should be given high priority in the implementation of the school health programme.

The validity of serum ferritin levels in predicting cardiovascular events of metabolic dysfunction-associated steatotic liver disease patients may need more consideration

We read with great interest the informative study by Armandi et al.,which shed light on the potential role of serum ferritin in predicting the long-term prognosis of patients with metabolic dysfunction-associated steatotic liver disease(1).However,there remain certain facets requiring in-depth investigation and interpretation.First of all,the study found that integrating stepwise increased ferritin thresholds(215.5 and 272µg/L)into predictive models can improve the performance of fibrosis-4(FIB-4)and Non-Alcoholic Fatty Liver Disease Fibrosis Score(NFS)in the longitudinal risk assessment of liver-related events and overall mortality.However,it has been suggested that metabolic hyperferritinaemia(MHF)appears to exhibit a male predominance(2,3).Since the study primarily comprised male participants(65%),it raises the query of whether the ferritin threshold based on the entire population can accurately predict risks within female patients.Therefore,a sex-specific analysis is warranted to ensure a more precise evaluation.

Relationship between serum ferritin and hemoglobin levels determined by cardiac and hepatic T2 MRI in beta-thalassemia intermedia and major patients

BACKGROUND： Thalassemia major is one of the most common hereditary disorders, and it causes ineffective hematopoiesis in the body through disarrangement of the hemoglobin synthesis balance. Regular blood transfusions cause complications of iron overload in the body in these patients. Tissue iron status can be determined by measuring serum and liver biopsy ferritin levels and by T2＊ MRI. This study assessed the relationship between serum ferritin and hemoglobin by T2＊ MRI of the heart and liver. METHOD： This cross-sectional descriptive study was carried out on patients with beta-thalassemia intermedia and major who visited the Center for Thalassemia and Hemoglobinopathies at Shafa Hospital, Ahwaz, between 2014 and 2015. All patients were receiving regular blood transfusions every 2-4 weeks. Pearson＇s correlation test was used to assess serum ferritin and T2＊ values from heart and liver MRI. RESULTS： A total of 260 patients （mean age is 23-year-old） were enrolled in the study. The incidence of iron overload in the liver and heart was 83% and 39%, respectively. Serum ferritin levels showed a very strong inverse correlation with T2＊ values on heart （r = -3.54, p 〈 0.0001） and liver （r = -3.03, p 〈 0.0001） MRI. Additionally, a meaningful interaction was observed between the T2＊ values from liver and heart MRI （r = 0.29, p 〈 0.0001）. CONCLUSION： Serum ferritin is strongly and inversely correlated with T2＊ values of MRI of the liver and heart in patients with thalassemia. Therefore, T2＊ MRI can be used to assess tissue iron levels with very high accuracy.

The Potential Clinical Significance of the Serum Iron and Ferritin Status in Lung Cancer Patients

Background An increasing number of studies have shown that iron,one of the indispensable trace elements in the human body,is closely related to the occurrence and development of cancer.However,few studies have clearly demonstrated the role of the iron levels in lung cancer patients,or the potential effects of inflammation on iron levels.Methods The clinical data for lung cancer patients and non-lung cancer participants were retrospectively analyzed.The serum iron and ferritin levels were measured and compared using a rank-sum test.The correlation between the serum iron/ferritin and C-reactive protein(CRP)was analyzed by rank correlation.The cut-off values for continuous variables were obtained by the receiver operating characteristic curve(ROC)method.An analysis of potential prognostic factors in lung cancer patients was conducted by univariate and multivariate survival analyses.Results The serum iron levels in patients with extensive small-cell lung cancer(SCLC)were lower than those with limited-stage SCLC,and the levels of serum ferritin and CRP in those with extensive SCLC were higher than those with limited-stage SCLC.Similarly,the serum iron levels in patients with stage IV non-small cell lung cancer(NSCLC)were lower than those of patients with stageⅠ-Ⅲdisease,and the levels of serum ferritin and CRP in those with stage IV NSCLC were higher than those in stagesⅠ-Ⅲ.The serum iron level was negatively correlated with the level of CRP,while the serum ferritin level was positively correlated with CRP.The stage of lung cancer,but not the serum iron/ferritin level,was an independent prognostic factor in lung cancer patients.Conclusions The serum iron and ferritin levels are associated with the staging of lung cancer.The later stages of lung cancer are associated with a lower serum iron level,a higher serum ferritin level,and a higher CRP level.Inflammation may play an important role in regulating the serum iron and ferritin levels in lung cancer patients.

血清铁蛋白作为急性时相反应蛋白在布鲁菌病中的应用

目的:比较急、慢性布鲁菌病(简称布病)患者治疗前和治疗中外周血铁蛋白水平,评估血清铁蛋白与急、慢性布病炎性反应和布病治疗转归的关系。方法:选取急、慢性期且未接受抗生素治疗的布病患者各36例作为治疗前组;抗生素治疗10 d左右的急、慢性期布病患者各36例作为治疗中组;选取健康体检者25例作为对照组。采用酶联免疫吸附试验测定各组样本的血清铁蛋白水平,统计分析血清铁蛋白水平在各组间的差异。结果:治疗前急、慢性期和对照组血清铁蛋白水平具有明显差异(P<0.01);急、慢性组铁蛋白水平均比对照组明显增高(P<0.01);急性铁蛋白水平比慢性组明显升高(P<0.01)。治疗中急、慢性期和对照组血清铁蛋白水平具有明显差异(P<0.01);急、慢性布病组铁蛋白水平均比对照组明显增高(P<0.01);急性布病铁蛋白水平比慢性布病明显降低(P<0.01)。治疗中急性期、慢性期布病铁蛋白水平均比治疗前明显降低(P<0.001)。结论:血清铁蛋白与布鲁菌病的炎症反应程度有关,可用于监测布鲁氏菌病的炎症反应程度和评估治疗效果。

联合检测血清铁蛋白和甲胎蛋白在原发性肝癌患者中应用效果的研究

目的研究检测原发性肝癌患者血清铁蛋白和甲胎蛋白获得的临床效果。方法选取2022年1-12月就诊144例原发性肝癌患者,将其作为研究对象进行组别划分。其中144例原发性肝癌患者为研究组,100名正常人员为对照组,比较两组的甲胎蛋白(AFP)和血清铁蛋白(SF)测定结果、AFP和SF阳性率。结果研究组的血清AFP和SF测定结果较对照组明显,且与对照组的AFP和SF阳性率比较,研究组数值更高(P<0.05)。结论经血清铁蛋白和甲胎蛋白联合检测原发性肝癌,发现实际诊断价值较高,能发挥良好的应用效果。

Role of doxycycline in the treatment of dengue infection: An open-label, randomized, controlled, pilot trial

Objective:To measure the effect of doxycycline on inflammatory marker[IL-6,TNF-α,ferritin and C reactive protein(CRP)]levels in patients with dengue infection.Methods:A single-centre,open-label,parallel-group randomized controlled trial was done in PGIMER Chandigarh from June 2021 to October 2022.Patients were randomized using a simple randomization process into two groups:the doxycycline treatment group(n=35)and the control group(n=34).Patients in the treatment group were given oral doxycycline 100 mg twice daily for five days along with standard treatment,whereas patients in the control group received only standard treatment.The objective was to measure the effect of doxycycline on inflammatory markers in dengue infection.Results:On comparative analysis at day 5,there was a statistically significant reduction in the median values of ferritin and CRP in cases compared to the control group(ferritin:P=0.006 and CRP:P=0.006).No significant reduction was noted in the levels of IL-6 and TNF-α.Conclusions:Doxycycline treatment led to a reduction of inflammatory markers in dengue infection.

血清铁蛋白和转铁蛋白饱和度与非贫血人群死亡风险的相关性分析

目的探讨非贫血人群血清铁蛋白(serum ferritin,SF)和转铁蛋白饱和度(transferrin saturation,TSAT)与全因死亡和心血管死亡的相关性。方法选取1999—2000年和2001—2002年国家健康和营养检查调查研究(national health and nutrition examination survey,NHANES)的非贫血人群7167例,于2006年12月31日前对死亡终点进行随访,采用阈值效应分析和多因素cox回归模型分析SF和TAST与全因死亡和心血管死亡风险的相关性。结果7167例患者中男3533例、女3634例,年龄18~85岁,平均(46.1±20.0)岁,BMI平均(27.9±6.2)kg/m2。平均随访(5.1±1.2)年,共随访11623人/年,其中全因死亡452例、心血管死亡117例。SF与全因死亡和心血管死亡呈非线性相关,SF的截断值为200 ng/ml;当SF<200 ng/ml时,SF每增加100 ng/ml,全因死亡风险增加25%(HR=1.252,95%CI:1.068~1.486,P=0.008),心血管死亡风险增加37%(HR=1.370,95%CI:1.076~1.900,P=0.036)。TSAT与全因死亡率呈L型非线性相关,截断值为30%,当TSAT<30%时,TSAT每增加10%,全因死亡风险降低21%(HR=0.791,95%CI:0.681~0.914,P=0.001);TSAT与心血管死亡风险呈线性负相关(HR=0.803,95%CI:0.660~0.963,P=0.014)。结论非贫血人群的SF与全因死亡和心血管死亡呈非线性相关、截断值为200 ng/ml,TSAT与全因死亡呈L型相关、截断值为30%,且TSAT与心血管死亡呈负相关。建议将非贫血人群的SF与TSAT控制在合适范围,以降低死亡风险,并改善预后。

2型糖尿病患者血清铁蛋白水平与体脂分布的相关性分析

目的探讨2型糖尿病(T2DM)患者血清铁蛋白水平与体脂分布的关系。方法收集2020年6-11月在兰州大学第一医院内分泌科住院的151例T2DM患者进行回顾性分析。所有患者根据血清铁蛋白水平分为高血清铁蛋白组(n=50)与正常血清铁蛋白组(n=101)。测量两组患者的血糖、血脂,以及内脏脂肪面积(VFA)、皮下脂肪面积(SFA)、肝脂肪、身高、体重和腰围(WC),计算体重指数(BMI)和内脏肥胖指数(VAI),并进行组间比较;采用Pearson或Spearman相关性分析及多元线性回归分析血清铁蛋白水平与体脂分布的相关性。结果高血清铁蛋白组VAI和WC均明显高于正常血清铁蛋白组[分别为3.13(2.16,4.58)vs.2.66(1.66,3.81),(96.66±7.78)cm vs.(91.96±9.75)cm,P<0.05]。高血清铁蛋白组中心性肥胖和血脂异常的患病率明显高于正常血清铁蛋白组(分别为88.0%vs.68.3%,90.0%vs.75.2%,P<0.05),且血糖控制差、胰岛素抵抗的构成比也高于正常血清铁蛋白组(分别为96.0%vs.78.2%、62.0%vs.40.6%,P<0.05),而两组间BMI、VFA、SFA水平,以及降糖药物使用情况和糖尿病慢性并发症差异无统计学意义(P>0.05)。T2DM患者血清铁蛋白水平与VAI、WC、三酰甘油(TG)、空腹血糖(FPG)、糖化血红蛋白(HbA1c)、血脂异常、血清肌酐(SCr)呈正相关(r=0.171、0.207、0.187、0.243、0.270、0.162、0.162,P<0.05),与年龄、性别和糖尿病病程呈负相关(r=-0.191、-0.434、-0.352,P<0.05)。多元线性回归显示,在男性T2DM患者中,糖尿病病程和FPG是血清铁蛋白水平增高的危险因素,但WC及VAI对血清铁蛋白的影响不明显;而在女性T2DM患者中,糖尿病病程、TG和VAI是血清铁蛋白水平增高的危险因素(P<0.05)。结论女性T2DM患者的血脂紊乱和内脏脂肪增加是血清铁蛋白水平增高的危险因素。

噬血细胞性淋巴组织细胞增生症与脓毒症临床特征比较

目的 比较噬血细胞性淋巴组织细胞增生症(HLH)与脓毒症的临床特征,寻找帮助鉴别诊断的实验室指标。方法 回顾性分析2013年1月—2020年12月无基础疾病HLH以及发热伴外周血二系细胞减少或脾脏肿大的脓毒症患儿的临床资料。结果 共106例患儿纳入研究。HLH组患儿72例,男46例、女26例,中位年龄26.5(14.3~56.8)个月;脓毒症组患儿34例,男18例、女16例,中位年龄14.0(3.8~89.0)个月。脓毒症组总住院时间和PICU入住时间均长于HLH组,差异有统计学意义(P<0.05)。与脓毒症组相比,HLH组的白细胞计数(WBC)-Min、中性粒细胞绝对值(ANC)-Min、血红蛋白(HB)-Min、血小板计数-Min、肌酐(CREA)-Max、纤维蛋白原(FIB)-Min、C反应蛋白-Max、降钙素原(PCT)-Max较低,三酰甘油-Max、血清铁蛋白(SF)-Max较高,HB减少持续时间较短,ANC减少持续时间较长,组间差异均有统计学意义(均P<0.05)。多因素logistic回归分析发现WBC-Min、FIB-Min、CREA-Max和PCT-Max水平的下降有助于诊断HLH(P<0.05)。ROC曲线分析显示,SF-Max协助判断HLH的AUC为0.72(95%CI:0.62~0.80)。经logistic回归方程拟合,获得WBC-Min、FIB-Min、CREA-Max和PCT-Max的联合预测因子,其协助判断HLH的AUC为0.95(95%CI:0.89~0.99);联合预测因子的AUC显著大于SF-Max,差异有统计学意义(P<0.01)。结论 WBC-Min、FIB-Min、CREA-Max、PCT-Max四项指标拟合可能有助于更好鉴别HLH和脓毒症。

2型糖尿病患者血清铁蛋白水平与血尿酸的关系

目的探究2型糖尿病(T2DM)患者血清铁蛋白(SF)水平与血尿酸(SUA)的关系,为临床上T2DM合并高尿酸血症(HUA)患者的诊治提供新的分子标志物。方法选取2021年8月至2022年9月于兰州大学第一医院内分泌科住院治疗的T2DM患者351例,根据SF的四分位数水平将其分为4组:Q1组(SF<76.2 ng/mL,87例)、Q2组(SF为76.2~138.9 ng/mL,88例)、Q3组(SF为139.0~240.9 ng/mL,87例)、Q4组(SF≥241.0 ng/mL,89例),比较不同SF水平组患者SUA水平、HUA患病率的差异。根据是否合并HUA将T2DM患者分为HUA组(54例)和非HUA组(297例),比较两组之间SF水平及高铁蛋白血症患病率的差异。采用Pearson相关、Spearman秩相关及多元线性回归模型分析T2DM患者SF与SUA之间的相关性,采用二元logistic回归模型分析T2DM患者HUA发生的影响因素。结果T2DM患者Q4组SUA水平[(344.54±105.94)μmol/L]高于Q1组[(308.34±79.60)μmol/L,P<0.05],不同SF水平组间HUA患病率差异无统计学意义(P>0.05)。HUA组SF水平[174.50(105.40,295.25)ng/mL]高于非HUA组[129.00(69.55,226.00)ng/mL],差异有统计学意义(P<0.05);HUA组患者高铁蛋白血症的患病率(18.52%,10/54)与非HUA组(17.17%,51/297)比较差异无统计学意义(P>0.05)。相关性分析提示SUA与SF呈正相关(rs=0.110,P=0.040)。多元线性回归分析提示T2DM患者SF与SUA呈独立正相关(P<0.05)。二元logistic回归分析提示T2DM患者SF与HUA呈独立正相关(OR=1.003,P=0.023)。结论T2DM患者SF水平与SUA密切相关,SF是T2DM患者HUA发生的独立影响因素。

基于MIMIC-Ⅳ数据库分析血清铁蛋白与重症糖尿病肾病患者预后的关系

目的 探讨重症糖尿病肾病(diabetic kidney disease, DKD)患者的血清铁蛋白(serum ferritin, SF)与预后的关系。方法 回顾性分析MIMIC-Ⅳ数据库中重症DKD患者的临床资料。根据入院后60天的生存状况,将重症DKD患者分为生存组(n=87)和死亡组(n=659);根据入院后60天的SF水平,将重症DKD患者分为低SF组(SF≤333ng/ml,n=373)和高SF组(SF>333ng/ml,n=373)。采用Kaplan-Meier曲线比较不同SF水平重症DKD患者的生存率,并采用多因素COX回归分析评估重症DKD患者60天全因死亡的危险因素。结果 共纳入746例重症DKD患者,60天全因死亡率为11.6%。死亡组患者的年龄、白细胞计数、红细胞分布宽度、肌酐、血尿素氮、尿蛋白、SF、急性肾损伤、持续性肾脏替代治疗的值均高于生存组,而收缩压、舒张压、血红蛋白、转铁蛋白则低于生存组。Kaplan-Meier曲线分析结果显示,高SF组患者的60天生存率明显低于低SF组(χ2=12.163,P<0.001)。多因素COX回归分析结果显示,高SF(HR=1.0001,95%CI:1.0001~1.0002)为重症DKD患者60天全因死亡的独立危险因素(P<0.05)。结论 高SF水平是重症DKD患者60天全因死亡的独立危险因素。