scholarly journals Anti-protein C antibodies and acquired protein C resistance in SLE: novel markers for thromboembolic events and disease activity?

Rheumatology ◽  
2020 ◽  
Author(s):  
Giuseppe A Ramirez ◽  
Ian Mackie ◽  
Susanna Nallamilli ◽  
Tatiana Pires ◽  
Rachel Moll ◽  
...  
Keyword(s):  
Disease Activity ◽  
Protein C ◽  
Activated Protein C ◽  
Cross Sectional Study ◽  
Time Range ◽  
High Avidity ◽  
Sectional Study ◽  
Cross Sectional ◽  
Apc Resistance ◽  
Endogenous Protein

Abstract Objectives Risk factors for thromboembolism in SLE are poorly understood. We hypothesized a possible role for protein C, based on its dual activity in inflammation and haemostasis and on the evidence of an association between acquired activated protein C (APC) resistance (APCR) and high-avidity anti-protein C antibodies (anti-PC) with a severe thrombotic phenotype in venous thrombosis APS patients. Methods In a cross-sectional study of 156 SLE patients, the presence and avidity of IgG anti-PC was established by in house-ELISA, and APCR to exogenous recombinant human APC (rhAPC) and Protac (which activates endogenous protein C) was assessed by thrombin generation-based assays. Associations with aPL profile, thrombotic history and disease activity (BILAG and SLEDAI-2K) were also established. Results Anti-PC were detected in 54.5% of patients and APCR in 59%. Anti-PC positivity was associated with APCR to both rhAPC (P <0.0001) and Protac (P =0.0001). High-avidity anti-PC, detected in 26.3% of SLE patients, were associated with APCR in patients with thrombosis only (P <0.05), and with the development of thrombosis over time (range: 0–52 years; P =0.014). High-avidity anti-PC levels correlated with SLEDAI-2K (P =0.033) and total BILAG (P =0.019); SLEDAI-2K correlated inversely with APCR to Protac (P =0.004). Conclusion Anti-PC occur in patients with SLE, independently of aPL profile, and are associated with APCR. High-avidity anti-PC are associated with thrombosis and with active disease and might prove a novel marker to monitor the risk of thrombosis and disease progression in SLE.

scholarly journals AB0499 PHYSICAL ACTIVITY ASSESSMENT IN TUNISIAN PATIENTS WITH SPONDYLOARTHRITIS: THE IPAQ EVALUATION

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1277.1-1277
Author(s):  
F. Majdoub ◽  
M. Sellami ◽  
S. Miladi ◽  
A. Fazaa ◽  
L. Souabni ◽  
...  
Keyword(s):  
Physical Activity ◽  
Disease Activity ◽  
Axial Spondyloarthritis ◽  
Cross Sectional Study ◽  
Urban Setting ◽  
Tnf Inhibitor ◽  
Sectional Study ◽  
Cross Sectional ◽  
Tunisian Patients ◽  
Different Levels

Background:The occurrence of Spondyloarthritis (SpA) often conditions patients’ quality of life and hinders their well-being. Physical activity (PA) is associated with various health-related benefits among adults with chronic inflammatory rheumatism but may be insufficiently performed.Objectives:This study aimed to assess PA in patients with SpA and explore its associated factors.Methods:This is a single-center cross-sectional study, involving patients with SpA, visiting our outpatient hospital over eight weeks. Patients responded to the International Physical Activity Questionnaire-Short form (IPAQ-S).Results:Sixty patients were included (39 M/21 F) with an average age of 45.8 years [25-78]. The mean duration of SpA was 13.2 years [1-25]. About 80% of patients were from an urban setting. Sixty-three percent of patients had a professional activity, while 13.3% were retired. Twenty-nine patients (48.3%) had axial and peripheral form, 18 patients (30%) had SpA with enteropathic arthritis, 8 (13.3%) with psoriatic arthritis, 3 patients (5%) had axial spondyloarthritis, and only 2 patients (3.3%) with SAPHO-Syndrom. About 23% of patients had hip arthritis and only 5% had uveitis. Fifty-eight patients were on TNF-inhibitor (21/58 Adalimumab, 15/58 Infliximab, 14/58 Etanercept, 8/58 Golimumab). The average BASDAI was 2.7/10. The average ASDASCRP was 2.1/10. The average BASFI was 3.3/10. IPAQ results were distributed as follows: 78.3% of patients were in the « low physical activity » category, 21.7% were in the « moderate physical activity » while none of the patients were in the « high physical activity ». Patients without employment had lower levels of physical activity (29.7%) but no association was observed between those two items (p=0.082). Disease activity objectified with BASDAI was related to low physical activity (p=0.045) whereas no association was observed with ASDASCRP (p=0.870) or BASFI (p=0.056). Otherwise, TNF-inhibitor treatment was not related to different levels of PA (p=0.09).Conclusion:Tunisian patients with SpA don’t perform enough physical activity. Except for high disease activity, the different levels of PA did not appear to be explained by other disease-related variables. Thereby, physical activity should be encouraged in SpA.References:[1]Fabre, S., Molto, A., Dadoun, S. et al. Physical activity in patients with axial spondyloarthritis: a cross-sectional study of 203 patients. Rheumatol Int 36, 1711–1718 (2016).Disclosure of Interests:None declared.

Assessment of protein C antigen, free protein S, and protein C activity in pregnancy: A cross-sectional study of pregnant Nigerian women

2021 ◽  
Vol 26 (2) ◽  
pp. 118
Author(s):  
TheresaUkamaka Nwagha ◽  
HelenChioma Okoye ◽  
AngelaOgechukwu Ugwu ◽  
LisaIfenyinwa Eweputanna ◽  
EmmanuelOnyebuchi Ugwu
Keyword(s):  
Protein C ◽  
Protein S ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Nigerian Women ◽  
Free Protein ◽  
Protein C Activity ◽  
In Pregnancy

scholarly journals Correlation Between Cognitive Function with Disease Activity of Systemic Lupus Erythematosus Patients in Dr. Hasan Sadikin Hospital Bandung: An Analytical Cross-Sectional Study

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Aep Saepudin ◽  
Paulus Anam Ong ◽  
Syarief Hidayat ◽  
Andri Reza Rahmadi ◽  
Laniyati Hamijoyo
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Cognitive Function ◽  
Disease Activity ◽  
Cognitive Dysfunction ◽  
Lupus Erythematosus ◽  
Cross Sectional Study ◽  
Median Score ◽  
Sectional Study ◽  
Systemic Lupus ◽  
Cross Sectional

Background: Cognitive dysfunction was found in 55-80% Neuropsychiatry Systemic Lupus Erythematosus (NPSLE) patients. Serious concern from clinicans was needed as its impact to patient’s quality of life. Disease activity is expected to be affecting patient’s cognitive function. Previous studies regarding correlation between disease activity and cognitive dysfunction showed various results. This study aimed to evaluate the correlation between disease activity and cognitive function in SLE patients.Methods: This study is an analytical cross-sectional study. Subjects were SLE patients at the rheumatology clinic of Dr. Hasan Sadikin Hospital Bandung during June-August 2017. Subject’s evaluations included disease activity assessment using SLE disease activity index-2K (SLEDAI-2K) and cognitive function assessment using MoCA-Ina test. Data were analyzed by using Spearman Rank correlation test. Results: Mean age of the subjects was 31 ± 8 years old, most of them were senior high school graduates (65.8 %) and median length of study was 12 years. Subject’s median duration of illness was 44 months. Their MoCA-Ina median score was 25, while SLEDAI-2K median score was 6. Cognitive dysfunctions were found in more than half of subjects (52.63%), which memory domain (78.95%) was most frequently impaired. Most of subjects were patients with active SLE (63.2%). Correlation test showed there was no correlation between SLEDAI-2K score and MoCA-Ina score (rs=0.023, p=0.445).Conclusion: There was no correlation between disease activity (SLEDAI-2K score) and cognitive function (MoCA-Ina score). Keywords: Cognitive dysfunction, MoCA-Ina, Systemic lupus erythematosus, SLEDAI-2K

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