Canonical (CD74/CD44) and Non-Canonical (CXCR2, 4 and 7) MIF Receptors Are Differentially Expressed in Rheumatoid Arthritis Patients Evaluated by DAS28-ESR

Macrophage migration inhibitory factor (MIF) significantly contributes to rheumatoid arthritis (RA) pathogenesis. We aimed to evaluate the canonical (CD74/CD44) and non-canonical MIF receptors (CXCR2,4 and 7) expression and sCD74 to establish their association with RA clinical activity according to DAS28-ESR. Methodology: 101 RA patients with different clinical activities (remission (n = 27), low (n = 16), moderate (n = 35) and high (n = 23)) and 9 control subjects (CS) were included. Expression was evaluated by flow cytometry and levels of soluble CD74 (sCD74) by ELISA. Data analysis was performed with FlowJov10.0, STATAv12.0, and GraphPad Prism v7.0. Results: According to disease activity, CXCR7 expression (percentage of expression and mean fluorescence intensity (MFI)) was higher in granulocytes from patients in remission, while the expression of CXCR4 was higher in patients with high disease activity (p < 0.05). The expression of CD74 was higher in B cells (p < 0.05) and monocytes (p < 0.01) from patients in remission. Regarding sCD74 levels these were higher in patients with high disease activity when compared to those in remission (p <0.05). Conclusions: The results support the need for further study of the role of sCD74 as a soluble MIF decoy receptor, sequestering it to negatively regulate MIF signaling though its membrane receptors. The expression patterns of CXCR4 and CXCR7 show that the latter is a scavenger-type receptor that prevents endocytosis and even degradation of CXCR4 under inflammatory conditions.

Calcium silicate-based cements affect the cell viability and the release of TGF-β1 from apical papilla cells

This study investigated the cytotoxicity and release of Transforming Growth Factor Beta 1 (TGF-β1) from cultured human apical papilla cells (APCs) after application of four bioactive materials. Culture of APCs was established and used for cytotoxic and quantitative assays. Extracts of Biodentine, Bio-C Repair, MTA Repair and White MTA were prepared and diluted (1, 1:4 and 1:16) and used for MTT assays up to 72 h. Total TGF-β1 was quantified by ELISA. Data were analyzed by ANOVA and Tukey’s test (α = 0.05). For Biodentine, at 24 h and 48 h, cell viability was lower than control (p < 0.05). At 72 h, only undiluted extract of Biodentine were cytotoxic (p < 0.05). At 24 h, a cytotoxic effect was found for undiluted and 1:4 dilution of Bio-C Repair (p < 0.05). At 48 h, however, Bio-C Repair at 1:4 and 1:8 dilution showed higher cell viability (p < 0.05). At 24 and 48 h, the cell viability for undiluted MTA Repair were higher than control (p < 0.05). For White MTA, at 24 and 48 h, all dilutions were cytotoxic (p < 0.05). All cements led to reduced release of total TGF-β1 from the APCs (p < 0.05). In conclusion, cell viability varied depending on the material and dilution. Only Bio-C repair and MTA repair led to higher cell viability of APCs. All materials induced a decrease in the release of total TGF-β1 from the APCs.

Perbandingan Kadar Antioksi dan Total pada Kanker Serviks Stadium Lanjut Sebelum dan Setelah Kemoterapi

Abstrak Tujuan: Membandingkan kadar antioksidan total pada penderita kanker serviks stadium lanjut sebelum dan setelah kemoterapi. Metode: Merupakan penelitian studi kohort prospektif yang dilakukan di Badan Layanan Umum (BLU) Rumah Sakit Wahidin Sudirohusodo Perawatan onkologi-ginekologi Lontara 4 bawah dan Unit Penelitian Rumah Sakit Perguruan Tinggi Negeri Universitas Hasanuddin. dari perode tanggal 1 Oktober 2019–30 September 2020. Sampel penelitian adalah semua penderita kanker serviks stadium lanjut yang memenuhi kriteria inklusi. Data yang diambil adalah data primer menggunakan questionnaire serta pemeriksaan kadar Anti Oksidan Total dengan metode ELISA. Data yang diperoleh dianalisis dengan menggunakan program komputer SPSS 25.0, Microsoft Excel dan Microsoft Word. Hasil: Terdapat 34 orang sampel penelitian menderita kanker serviks stadium lanjut yang mendapatkan kemoterapi 3 seri. Stadium 2B memiliki perbedaan rerata antioksidan yang signifikan secara statistik. Tipe adenokarsinoma, jenis diferensiasi kategori sedang dan kategori tidak ada keterangan memiliki perbedaan kadar antioksidan yang signifikan secara statistik. Terdapat perbedaan rerata kadar antioksidan total antara sebelum dan sesudah dilakukan kemoterapi dengan p<0,05. Kesimpulan: Terdapat penurunan bermakna kadar antioksidan total sebagai penanda stres oksidatif pada pasien kanker serviks stadium lanjut yang menjalani prosedur kemoterapi. Kata kunci: Kadar Antioksidan, Kanker Serviks Stadium Lanjut, Kemoterapi

The main factors, associated with incomplete vaccination againts measels, parotitis, rubella, and diphtheria in 170 juvenile idiopathic arthritis patients: the results of prospective pilot study

Background. Patients with juvenile idiopathic arthritis (JIA) may have incomplete vaccination againts different vaccines leads to lower protective levels of anti-vaccine antibodies.The aim of the study – to evaluate the rate and the main factors of incomplete vaccination against measels, parotitis, rubella (MMR), and diphtheria in JIA patients.Methods. In the present study were included data 170 JIA (55 boys and 115 girls) aged from 2 to 17 years, who received scheduled vaccination before the age of 2 years and before JIA onset against measles, parotitis, diphtheria and rubella. Incomplete vaccination means the reduced number of vaccine to age. In all patients the IgG anti-vaccine antibodies levels were detected with ELISA. Data presented with odds ratio ()OR) with 95 confidence interval (CI).Results. Incomplete vaccination against MMR was in 50 (32.5%) of children less than 6 years. Incomplete vaccination against diphtheria was in 6/16 (37.5%) of children less than 6 year, in 53/110 (48.2%) of children aged 6–14 years and in 26/44 (59.1%) of the JIA patients more than 14 years. The main predictors in logistic regression for incomplete vaccination for MMR were: onset age <4 years (OR=12.2 [95% CI: 5.0–28.9]; p=0.0000001), JIA duration >3.1 years (OR=4.4 [95% CI: 2.0–9.9]; p=0.0002), methotrexate duration >3 years (OR=5.7 [95% CI 2.7–12.0]; p=0.0000012); biologic treatment (OR=2.5 [95% CI: 1.3–4.9]; p=0.008) and treatment >1 biologic (OR=3.3 [95% CI: 1.1–10.4]; p=0.002); for diphtheria were: JIA duration >3.1 years (OR=3.4 [95% CI: 1.8–6.5]; p=0.0002), methotrexate duration >2.8 years (OR=4.1 [95% CI: 2.1–8.1]; p=0.00004), biologic treatment (OR=2.4 [95% CI: 1.3–4.4]; p=0.006). In the multiple regression only JIA onset age (p=0.00001) and duration of methotrexate (p=0.003) were predictors of incomplete vaccination against MMR. Methotrexate duration (p=0.005) and biologics treatment (p=0.05) were predictors of incomplete vaccination against diphtheria.Conclusion. The main predictor of incomplete vaccination was younger onset age of JIA. Children received more intensive immunosupression usually have scheduled vaccination rarely which leads to increased number of patients without protective antibody levels. These facts indicate the attitude of physicians parents to vaccination in immunocompromised children. Further investigations required for assessment of safety of vaccinations in children with rheumatic diseases may be a factor for changing this prejudice.

Seroprevalence of mycoplasmosis in broiler, layer, and native chickens in Giza, Egypt

We aimed to investigate Mycoplasma infections among chicken flocks (Ross, Lohmann and native) in Giza, Egypt, using serological tests, including the slide plate agglutination (SPA) test, hemagglutination inhibition (HI) test, and enzyme-linked immunosorbent assay (ELISA). The slide plate agglutination examination, a serological test, indicated the prevalence of Mg and Ms infections of 10.9% and 13.2%, respectively. On 91 SPA test positive serum samples for either Mg or Ms, a passive hemagglutination/hemagglutination inhibition (HI) test was performed. The SPA and HI test findings were found to be comparable. On 90 SPA test positive samples, an ELISA was performed using commercial kits for Mg and Ms serodiagnosis. According to the ELISA data, only 83.33% and 18.88% of SPA test positive samples were confirmed as positive for Ms and Mg infections, respectively. The prevalence increased to 84.44% and 77.77%, respectively, when suspected samples were deemed positive.

Konsentrasi IL-6 Serum terhadap Penyembuhan Luka Pasca Pemasangan Implan Paduan Logam pada Babi (Sus scrofa)

Penelitian ini bertujuan untuk mengetahui gambaran konsentrasi IL-6 serum pada fase akut dan kronis selama proses penyembuhan luka pasca pemasangan implan paduan logam pada vesika urinaria babi. Penelitian ini menggunakan 6 ekor babi jantan dan betina, usia 2-3 bulan, dengan bobot badan berkisar 25-30 kg yang dibagi ke dalam dua kelompok implan dan tiga waktu pengamatan. Implan logam yang digunakan adalah Zn-0.5Al sebagai kelompok I dan ZnMg(4x) sebagai kelompok II, sedangkan waktu pengamatan dilakukan pada hari ke-0, 14, dan 28. Pemasangan implan dilakukan pada vesika urinaria (VU) menggunakan teknik cystotomi. Pengukuran konsentrasi IL-6 serum menggunakan metode enzyme-linked immunosorbent assay (ELISA). Data dianalasis menggunakan analysis of variance (ANOVA). Hasil penelitian menunjukkan pada hari ke-0, implan Zn-0.5Al dan ZnMg(4x) berturut-turut adalah 1.38±2.40 pg/mL dan 0.10±0.17 pg/mL. Konsentrasi IL-6 hari ke-14 pada setiap implan terlihat mengalami penurunan dibandingkan pada hari ke-0, yaitu 0.74±1.29 pg/mL dan 0 pg/mL. Selanjutnya hari ke-28 konsentrasi IL-6 kembali mengalami penurunan, yaitu 0.32±0.35 pg/mL dan 0 pg/mL. Penurunan konsentrasi IL-6 dari fase akut ke fase kronis proses penyembuhan luka pada setiap kelompok implan tidak berbeda signifikan (P>0,05). Pemeriksaan serum pada babi (Sus scrofa) terhadap konsentrasi IL-6 kelompok perlakuan implan Zn-0,5Al dan ZnMg(4x) tidak menunjukkan perbedaan nyata (P>0,05) pada hari ke-0, 14, dan 28.

Fibrinogen and hemoglobin predict near future cardiovascular events in asymptomatic individuals

To identify circulating proteins predictive of acute cardiovascular disease events in the general population, we performed a proteomic screen in plasma from asymptomatic individuals. A “Discovery cohort” of 25 individuals who subsequently incurred a cardiovascular event within 3 years (median age = 70 years, 80% male) was matched to 25 controls remaining event-free for > 5 years (median age = 72 years, 80% male). Plasma proteins were assessed by data independent acquisition mass spectrometry (DIA-MS). Associations with cardiovascular events were tested using Cox regression, adjusted for the New Zealand Cardiovascular Risk Score. Concentrations of leading protein candidates were subsequently measured with ELISAs in a larger (n = 151) independent subset. In the Discovery cohort, 76 plasma proteins were robustly quantified by DIA-MS, with 8 independently associated with cardiovascular events. These included (HR = hazard ratio [95% confidence interval] above vs below median): fibrinogen alpha chain (HR = 1.84 [1.19–2.84]); alpha-2-HS-glycoprotein (also called fetuin A) (HR = 1.86 [1.19–2.93]); clusterin isoform 2 (HR = 1.59 [1.06–2.38]); fibrinogen beta chain (HR = 1.55 [1.04–2.30]); hemoglobin subunit beta (HR = 1.49 [1.04–2.15]); complement component C9 (HR = 1.62 [1.01–2.59]), fibronectin isoform 3 (HR = 0.60 [0.37–0.99]); and lipopolysaccharide-binding protein (HR = 1.58 [1.00–2.49]). The proteins for which DIA-MS and ELISA data were correlated, fibrinogen and hemoglobin, were analyzed in an Extended cohort, with broader inclusion criteria and longer time to events, in which these two proteins were not associated with incident cardiovascular events. We have identified eight candidate proteins that may independently predict cardiovascular events occurring within three years in asymptomatic, low-to-moderate risk individuals, although these appear not to predict events beyond three years.

Cytotoxicity and Inflammatory Mediators Release by Macrophages Exposed to Real Seal XT and Sealapex Xpress

This study evaluated the cytotoxicity of Sealapex Xpress and Real Seal XT and their effect on macrophage activation. J774.1 macrophages were incubated with Sealapex Xpress and Seal Real XT (0.1, 1.0, and 10 mg/mL) for 24 and 48 h. Cell viability was assessed by the MTT assay and macrophage activation was measured by pro- and anti-inflammatory cytokine production using ELISA. Data were analyzed using one-way ANOVA and Tukey’s post-test (a=0.05). Cell viability was not affected with 0.1 or 1.0 mg/mL of extracts of Sealapex Xpress and Real Seal XT at 24 and 48 h (p>0.05), but was significantly lower when cells were exposed to 10 mg/mL of both sealers (p<0.05). Sealapex Xpress inhibited the production of TNF-a, whereas Real Seal XT induced TNF-a secretion at 24 h (p<0.05). IL-6 production was induced by Real Seal XT, but not by Sealapex Xpress (p<0.05). Real Seal XT and Sealapex Xpress induced the secretion of anti-inflammatory IL-10. IL-4 was not detected in any group. In conclusion, both sealers had low toxicity but differentially activated macrophages. Macrophage activation by Sealapex Xpress was characterized by inhibition of TNF-a and induction of IL-10, whereas Real Seal XT induced IL-6 solely.

Galectin-9 regulates serum amyloid A-induced inflammasome activation in human neutrophils

Objective The Nod-like receptor (NLR) Family Pyrin Domain Containing 3 (NLRP3) inflammasome plays roles in host defense and the development of autoinflammation. Galection-9 (Gal-9), one of the β-galactoside binding lectins, plays important regulatory roles in autoimmune diseases. T cell immunoglobulin and mucin-domain containing molecule 3 (TIM-3)/Gal-9 inhibitory interaction has been proposed in innate immune system. We investigate the role of Galectin-9 (Gal-9) on serum amyloid A (SAA)-induced inflammasome activation and IL-1β processing by human neutrophils. Results SAA stimulation induced the release of cleavage of IL-1β (p17) from neutrophils suggesting that SAA induces the inflammasome activation and subsequent processing of pro-IL-1β. ELISA data demonstrated that SAA stimulation also induced cleaved caspase-1 (p20) secretion from human neutrophils, and this release was suppressed by Gal-9 pretreatment. Gal-9 pretreatment diminished the SAA-induced cleaved IL-1β secretion, however, did not affect SAA-induced pro-IL-1β secretion from neutrophils. Furthermore, Gal-9 pretreatment suppressed SAA-induced intracellular accumulation of cleaved IL-1β, suggesting that Gal-9 functions as a negative regulator of SAA-induced inflammasome activation and may be a potential therapeutic target for the treatment of autoinflammatory disorders.

Potensi Ekstrak Kunyit (Curcuma longa) Terhadap Kadar Ischemia Modified Albumin (IMA) pada Tikus Model Penyakit Jantung Koroner

Penyakit Jantung Koroner (PJK) adalah penyakit kardiovaskuler akibat penyempitan pembuluh darah koroner yang menyebabkan iskemia miokard, sehingga mengakibatkan apoptosis sel. Kunyit mengandung senyawa yang berperan sebagai anti inflamasi, seperti kurkumin. Tujuan: Menentukan pengaruh kandungan kurkumin pada kunyit (Curcuma longa) terhadap kadar Ischemia Modified Albumin (IMA). Metode: Desain penelitian ini adalah rancangan post-test only control group dengan menggunakan tikus wistar jantan sebanyak 30 ekor yang terbagi ke dalam 5 kelompok yaitu, kelompok 1 kontrol negatif, kelompok 2 kontrol positif, kelompok perlakuan 1, 2, dan 3. Kelompok perlakuan masing-masing mendapatkan ekstrak kunyit dengan variasi dosis 50, 100, dan 200 mg/kgBB. Pemeriksaan kadar IMA dalam serum darah menggunakan teknik ELISA. Data dianalisis dengan uji One-Way Anova. Hasil: Kadar IMA pada masing masing kelompok adalah kelompok 1 kontrol negative = 300,471 ng/mL, kelompok 2 kontrol positif = 333,357 ng/mL, kelompok perlakukan 1 dosis 50mg/kg = 232,317 ng/mL, kelompok perlakukan 2 dosis 100 mg/kgBB = 173,385 ng/mL, dan kelompok perlakuan 3 dosis 200 mg/kgBB = 217,358 ng/mL. Hasil analisis statistik menunjukkan tidak terdapat perbedaan yang bermakna kadar IMA antara semua kelompok penelitian, yakni kelompok kontrol positif, kontrol negatif, maupun kelompok perlakuan (p>0,05). Berdasarkan Independent t-test menunjukkan terdapat perbedaan yang bermakna kadar IMA antara kelompok perlakuan ekstrak kunyit 100 mg/kgBB, 200 mg/kgBB dengan kelompok kontrol positif. Simpulan: Ekstrak kunyit berpengaruh terhadap kadar IMA.Kata kunci: IMA, kunyit, kurkumin