Serum S100B Levels in Patients with Lupus Erythematosus: Preliminary Observation

ABSTRACT S100B is an astrocytic calcium-binding protein which has been proposed as a biochemical marker of brain damage or dysfunction in acute and chronic diseases. We investigated whether serum S100B levels could be related to systemic lupus erythematosus (SLE) activity. Patients were grouped as having inactive SLE (ISLE), active SLE without central nervous system (CNS) involvement (ASLE), or active SLE with unequivocal neurologic or psychiatric manifestation (NPSLE). The control group consisted of age- and sex-matched healthy blood donors. S100B levels were determined using a luminescence immunoassay. All SLE groups had higher levels of serum S100B than the control group. Among the SLE groups, significantly higher levels of serum S100B protein were found in the NPSLE group than in the ISLE and ASLE groups, and there was no significant difference in S100B levels between the ISLE and ASLE groups. These preliminary results point to a putative relevance of serum S100B protein levels in SLE patients, specifically concerning CNS involvement present in this disease.

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Increased S100B Levels in Cannabis Use Disorder

European Addiction Research ◽

10.1159/000442046 ◽

2015 ◽

Vol 22 (4) ◽

pp. 177-180 ◽

Cited By ~ 2

Author(s):

Huseyin Bayazit ◽

Erdinc Cicek ◽

Salih Selek ◽

Nurten Aksoy ◽

I. Fatih Karababa ◽

...

Keyword(s):

Calcium Binding ◽

Neuronal Damage ◽

Cannabis Use ◽

S100b Protein ◽

Control Group ◽

Blood Levels ◽

Cannabis Use Disorder ◽

Protein Levels ◽

S100 Calcium Binding Protein ◽

The Mean

Background: It has been determined that cannabis has adverse effects on brain tissue, and that increased S100 calcium binding protein B (S100B) blood levels are markers of neuronal damage. Therefore, the aim of this study was to evaluate the S100B levels in cannabis use disorder. Method: Thirty-two patients with cannabis use disorder and 31 matched healthy controls were enrolled in this study. Appropriate blood samples were taken from the enrolled subjects, and the serum S100B protein levels were measured with an electrochemiluminescence immunoassay for the quantification of the protein. Findings: We found significantly increased S100B protein levels in patients with cannabis use disorder. The mean serum concentration of S100B was 0.081 ± 0.018 μg/l in patients with cannabis use disorder, and 0.069 ± 0.018 μg/l in the control group (p = 0.008). Interpretation: Our data suggest that elevated S100B protein levels might indicate neuronal damage in the brains of people with cannabis use disorder.

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Long-term treadmill training ameliorates endothelium-dependent vasorelaxation mediated by insulin and insulin-like growth factor-1 in hypertension

Journal of Applied Physiology ◽

10.1152/japplphysiol.01062.2014 ◽

2015 ◽

Vol 119 (6) ◽

pp. 663-669 ◽

Cited By ~ 6

Author(s):

Yi-Yuan Lin ◽

Shin-Da Lee ◽

Chia-Ting Su ◽

Tsung-Lin Cheng ◽

Ai-Lun Yang

Keyword(s):

Growth Factor ◽

Insulin Receptor ◽

Treadmill Training ◽

Control Group ◽

Insulin Like Growth Factor ◽

Hypertensive Rats ◽

Protein Levels ◽

Significant Difference ◽

Nos Inhibitors

Dysfunction of insulin and insulin-like growth factor-1 (IGF-1) is associated with the pathophysiology of hypertension. The influence of long-term exercise on vascular dysfunction caused by hypertension remains unclear. We investigated whether long-term treadmill training improved insulin- and IGF-1-mediated vasorelaxation in hypertensive rats. Eight-week-old male spontaneously hypertensive rats (SHR) were randomly divided into sedentary and exercise (SHR-EX) groups. The SHR-EX group was trained on a treadmill for 60 min/day, 5 days/wk, for 8 wk. Wistar-Kyoto rats (WKY) were used as the normal control group. After training, aortic insulin- and IGF-1-mediated vasorelaxation was evaluated in organ baths. Additionally, the roles of phosphatidylinositol 3-kinase (PI3K), nitric oxide synthase (NOS), and aortic protein expression were examined in the three groups. Compared with sedentary SHR and WKY groups, insulin- and IGF-1-mediated vasorelaxation was significantly enhanced to a nearly normal level in the SHR-EX group. After endothelial denudation, blunted and comparable vasorelaxation was found among the three groups. Pretreatment with selective PI3K and NOS inhibitors attenuated insulin- and IGF-1-mediated vasorelaxation, and no significant difference was found among the three groups after the pretreatment. The aortic protein levels of the insulin receptor (IR), IGF-1 receptor (IGF-1R), insulin receptor substrate-1 (IRS-1), and endothelial NOS (eNOS) were also significantly increased in the SHR-EX group compared with the other two groups. These results suggested that treadmill training elicited the amelioration of endothelium-dependent insulin/IGF-1-mediated vasorelaxation partly via the increased activation of PI3K and NOS, as well as the enhancement of protein levels of IR, IGF-1R, IRS-1, and eNOS, in hypertension.

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Establishment of peritoneal liquid electrophoretogram from healthy horses and horses submitted to experimentally induced intestinal obstruction

Arquivo Brasileiro de Medicina Veterinária e Zootecnia ◽

10.1590/1678-41625993 ◽

2014 ◽

Vol 66 (3) ◽

pp. 665-671 ◽

Cited By ~ 1

Author(s):

A.F.S. Nogueira ◽

P.A. Di Filippo ◽

L.A. Anai ◽

M.C. Vieira ◽

K.M.M.G. Simplício ◽

...

Keyword(s):

Intestinal Obstruction ◽

Acute Phase ◽

Acute Phase Proteins ◽

Immunoglobulin A ◽

Control Group ◽

Protein Levels ◽

Sds Page ◽

Significant Difference ◽

Page Electrophoresis ◽

Experimentally Induced

The initial inflammatory stages of the colic syndrome include changes known as acute phase response. The aim of this study was to contribute with the establishment of reference values concerning the electrophoretogram of peritoneal liquid from healthy horses and horses submitted to experimentally induced intestinal obstruction. Twenty-one horses were allotted in four groups: duodenal obstruction (DG), ileum obstruction (IG), left-dorsal colon obstruction (MG), and control group (CG). Peritoneal liquid was sampled before obtruction (T0), with 3 hours of obstruction (T3) and 6, 30, 102 and 174 hours after desobstructing (T6, T30, T102 and T174, respectively). Total protein levels were determined by the biuret method and protein fractions were obtained by SDS-PAGE electrophoresis. The acute phase proteins (APP) identified were Immunoglobulin-A, ceruloplasmin, transferrin, albumin, α1-antitrypsin, heavy and light chains of immunoglobulin-G, haptoglobin, α1-acid glycoprotein and a still unnamed protein, which was called P24. There was no difference (P>0.3) in protein levels among groups, although a significant difference (P>0.05) was observed between distinct experimental moments in each group evidencing a higher response of the APP in the obstructed groups. The APP fractioning of the peritoneal liquid was standardized to establish a standard curve for healthy equines and those submitted to induced intestinal obstruction. Moreover, it was verified that the SDS-PAGE electrophoresis was sensitive and effective to help diagnose abdominal inflammatory processes.

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Effect of radiotherapy and chemotherapy on levels of serum S100B, IL-6, and IL-17 in patients with malignant glioma

European Journal of Inflammation ◽

10.1177/2058739218804329 ◽

2018 ◽

Vol 16 ◽

pp. 205873921880432

Author(s):

Chao Xiang ◽

Yunfei Zha ◽

Qianxue Chen

Keyword(s):

Malignant Glioma ◽

Calcium Binding ◽

Conformal Radiotherapy ◽

Effective Rate ◽

Combination Group ◽

Control Group ◽

Interleukin 17 ◽

Treatment Change ◽

Serum S100b ◽

3D Crt

From February 2014 to 2016, we recruited 80 patients with malignant glioma in the Renmin Hospital of Wuhan University. To study the effect of radiotherapy and chemotherapy on the levels of serum S100 calcium-binding protein B (S100B), interleukin 6 (IL-6), and interleukin 17 (IL-17), all patients were divided into two groups randomly and evenly. In one group, all 40 patients received the three-dimensional conformal radiotherapy (3D-CRT). In another group, all patients received combinatorial treatment of 3D-CRT and temozolomide (TMZ). The therapeutic effect, immune function index before and after the treatment, change of serum S100B, IL-6, and IL-17 levels as well as adverse reactions were analyzed and compared between those two groups. We found that the effective rate of the combination group was 82.5%, which is significantly higher than 52.5% in the control group. After treatment, the number of CD3+, CD4+, and NK cells in the combination group was higher. But, CD8+ cells were lower compared with those before treatment. The levels of serum S100B, IL-6, and IL-17 in both groups were lower than those before treatment. In conclusion, radiotherapy combined with chemotherapy is more effective than radiotherapy alone in the treatment of malignant cerebral gliomas and is worthy of clinical spreading.

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Effect of vitamin D supplementation on disease activity (SLEDAI) and fatigue in Systemic Lupus Erythematosus patients with hipovitamin D: An Open Clinical Trial

Indonesian Journal of Rheumatology ◽

10.37275/ijr.v8i2.59 ◽

2018 ◽

Vol 8 (2) ◽

Author(s):

Achmad Rifa’i ◽

Handono Kalim ◽

Kusworini Kusworini ◽

Cesarius Singgih Wahono

Keyword(s):

Systemic Lupus Erythematosus ◽

Clinical Trial ◽

Vitamin D ◽

Placebo Group ◽

Disease Activity ◽

Lupus Erythematosus ◽

Vitamin D Supplementation ◽

Control Group ◽

Systemic Lupus ◽

Significant Difference

Background : Low level of vitamin D impact the disease activity and the degree of fatigue in SLE patients. This study aims to determine the effect of vitamin D supplementation on disease activity and fatigue condition in Systemic Lupus Erythematosus (SLE) patients with hipovitamin D.Methods: We performed an open clinical trial. Subjects were randomized into two different groups (supplementation or placebo) using simple random sampling. The treatment group got vitamin D3 softgel/ cholecalciferol 1200 IU/day or 30 mg/day, while the control group gotplacebo for 3 months. SLEDAI scores and FSS scores were calculated at pre and posttreatment.Results: There were 20 subjectsfor supplementation group and 19 subjects in the placebo group. From this study, before and after treatment, we found a significant difference of mean level of vitamin D in supplementation group (p=0.000), and no significant difference inpatients with placebo (p=0.427). Moreover, from the SLEDAI score analysis, observed a significant difference bothin the supplemented group (p=0.000) and the placebo group (p=0.006). FSS scores significantly different in the supplemented group (p=0.000). Incorrelation test,there was a negative correlation (r=-0763) between vitamin D level and disease activity (SLEDAI), and both showing stastistical significance between thepre supplementation (p=0.000) and post supplementation (r=-0846; p=0.000). Similarly to theFSS scores, there was a meaningfulnegative correlation (r=-0.931, p=0.000) between the level of vitamin D with FSS scores pre and post supplementation (r=-0.911; p= 0.000). Furthermore, there was a significant correlation between disease activity (SLEDAI) pre supplementation with fatigue condition pre supplementation (r=0.846; p = 0.000) and postsupplementation (r=0.913; p= 0.000).Conclusion: The supplementation of vitamin D 1200 IU per day in patients with SLE improve disease activity and degree of fatigue. Keywords: vitamin D, disease activity, fatigue, SLE

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EVALUATION OF MEAT IN THE INFANT DIET

PEDIATRICS ◽

10.1542/peds.10.4.463 ◽

1952 ◽

Vol 10 (4) ◽

pp. 463-473

Author(s):

HOWARD M. JACOBS ◽

GEORGE S. GEORGE

Keyword(s):

Total Protein ◽

Infant Nutrition ◽

Physical Growth ◽

Morbidity Rate ◽

Control Group ◽

Average Weight ◽

Protein Requirements ◽

Protein Levels ◽

Young Infants ◽

Significant Difference

A commercially prepared lean meat was fed to young infants as a supplement to a diet already adequate in all food factors. In those infants first fed meat under 2 months of age, there was improvement in physical growth as determined by weight and height measurements. The same group demonstrated an improvement in hemoglobin levels; the elimination of the physiologic drop in total protein levels of the serum, with a prompt sustained rise in values, the greater part of which was composed of the globulin fraction. In those infants first fed meat after 2 months of age, there was a slight improvement in average weight gain, but no significant difference was noted in other body measurements, total protein, albumin or globulin fractions, or hemoglobin levels. Illness rates for the two years of the study demonstrated a 40% lower morbidity rate in the meat-fed group as compared to the control group. In striving for the optimum in infant nutrition protein requirements should be evaluated both quantitatively and qualitatively.

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The Role of S100B Protein at 24 Hours of Postnatal Age as Early Indicator of Brain Damage and Prognostic Parameter of Perinatal Asphyxia

Global Pediatric Health ◽

10.1177/2333794x19833729 ◽

2019 ◽

Vol 6 ◽

pp. 2333794X1983372

Author(s):

Qiu Luo ◽

Tamis Pin ◽

LiFen Dai ◽

GuiXian Chen ◽

YuTong Chen ◽

...

Keyword(s):

Brain Damage ◽

Likelihood Ratio ◽

Calcium Binding ◽

Perinatal Asphyxia ◽

Positive Likelihood Ratio ◽

Negative Likelihood Ratio ◽

Cytosolic Calcium ◽

S100b Protein ◽

Postnatal Life ◽

Serum S100b

Introduction. S100B protein is a cytosolic calcium-binding protein with a molecular weight of 21 kDa, which is present in various cells and concentrated mainly in the glial cells, which play a vital role in the maintenance of cellular homeostasis in the central nervous system. It is possible that increased S100B protein level might be considered as sensitive and specific indicator to predict early brain damage. Aim. To investigate the prognostic value of serum S100B protein in neonates with perinatal asphyxia (PA) at 24 hours of postnatal age. Methods. A systematic review was performed. Inclusion criteria were studies including data of neonates with PA, monitored with serum S100B, and with neurodevelopmental follow-up of at least 2 weeks. The period of bibliographic search was until January 2017. The consulted databases were MEDLINE, PsycINFO, and Embase. A combination of the following subject headings and keywords was adapted for each electronic database: “perinatal asphyxia,” “hypoxic ischemic encephalopathy,” “hypoxia-ischemia, brain,” and “S100B.” Meta-Disc1.4 software was used. Results. From the 1620 articles initially identified, 6 were finally included and reviewed. The overall diagnostic sensitivity of serum S100B was 0.80 (95% confidence interval [CI] = 0.68-0.88) and the specificity was 0.79 (95% CI = 0.70-0.87). But there was lower predictability value, that is, the positive likelihood ratio was only 3.26 (95% CI 1.74-6.12) and the negative likelihood ratio was 0.32 (95% CI = 0.20-0.5). The diagnostic odds ratio was 12.40 (95% CI = 4.66-33.0). Conclusion. Increased serum S100B level at 24 hours of postnatal life can demonstrate brain damage, but it should not be the only one used to predict PA outcome.

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NEDD4-1 Modulates the Resistance of Multiple Myeloma to Bortezomib

Blood ◽

10.1182/blood.v128.22.2068.2068 ◽

2016 ◽

Vol 128 (22) ◽

pp. 2068-2068

Author(s):

Xi Huang ◽

Enfan Zhang ◽

Xing Guo ◽

Jing Chen ◽

Xuanru Lin ◽

...

Keyword(s):

Multiple Myeloma ◽

Cell Lines ◽

Conflicts Of Interest ◽

Expression Profiles ◽

Acquired Resistance ◽

Gene Array ◽

Cell Counting ◽

Control Group ◽

Protein Levels ◽

Significant Difference

Abstract Background: Multiple myeloma (MM) is among the most common hematologic malignancies. Proteasome inhibitor bortezomib (Bor) is one of the most effective drugs for treatment of MM. However, during long-term Bor treatment, MM cells may eventually develop acquired-resistance to Bor which results in recurrence and a poor prognosis of MM. Several researches show that E3 ubiquitin ligases (E3s) primarily determine the substrate specificity of ubiquitin proteasome system and play an essential role in Bor resistance of MM. NEDD4-1 E3s, a founding member of the Neural precursor cell-Expressed Developmentally Downregulated gene 4 (NEDD4) family, was proved to involve in the proliferation, migration, invasion of cancer cells and the sensitivity of anticancer therapies. Our current study aims to explore the role and underlying mechanism of NEDD4-1 in acquired resistance of Bor in MM. Methods: The mRNA and protein levels of NEDD4-1 and its substrates in MM cell lines (H929, LP-1, RPMI8226, OPM-2 and ARP-1) and MM patients were detected by Quantitative Realtime PCR and Western Blotting. Lentiviral plasmids containing shRNA against NEDD4-1 were transfected into MM cells. Cell viability, proliferation and apoptosis of MM cells were measured by Cell Counting kit8 (CCK8) and flow cytometry. Gene array was used to compare the gene expression profiles of a panel of Bor treated MM cells vs vehicle-treated MM cells. Results: Gene array showed NEDD4-1 was significantly increased in MM cells treated with Bor. MM cells (CD138+ plasma cells of the bone marrow) from refractory/recurrence patients expressed lower NEDD4-1 than primary patient myeloma cells. Also, MM cell lines H929, ARP-1, LP-1 highly expressed NEDD4-1 at mRNA and protein levels. RPMI8226 and OPM-2 were relatively low expressed. Cell growth assay displayed no significant difference in proliferation between the NEDD4-1 knockdown (KD) and the control group (P>0.05). After suppression of NEDD4-1 using shRNAs, the killing effect of Bor in MM was significantly weaker than the control group (P<0.05). We also found that PTEN was decreased in the NEDD4-1 KD H929 cell line. Otherwise, phospho-STAT3 (ser727) and oncoprotein c-Myc and Bcl-2 were upregulated. Conclusion: Collectively, our study reveals that inhibition of NEDD4-1 can reduce MM sensitivity to Bor via regulating PTEN, c-Myc and Bcl-2, may be related to JAK/STAT signaling pathway, which suggests that NEDD4-1 probably acts as a novel drug target and therapeutic paradigm in the battle against multiple myeloma. Disclosures No relevant conflicts of interest to declare.

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