scholarly journals Frequency of myelin oligodendrocyte glycoprotein antibody in multiple sclerosis

2019 ◽  
Vol 7 (2) ◽  
pp. e649 ◽  
Author(s):  
Álvaro Cobo-Calvo ◽  
Hyacintha d'Indy ◽  
Anne Ruiz ◽  
Nicolas Collongues ◽  
Laurent Kremer ◽  
...  
Keyword(s):  
Disease Duration ◽  
Disease Onset ◽  
Cross Sectional Study ◽  
Myelin Oligodendrocyte Glycoprotein ◽  
Sectional Study ◽  
University Hospitals ◽  
Serum Samples ◽  
Cross Sectional ◽  
Mcdonald Criteria ◽  
A Cell

ObjectiveTo address the frequency of myelin oligodendrocyte glycoprotein (MOG) antibody (Ab) in an unselected large cohort of adults with MS.MethodsThis is a cross-sectional study in 2 MS expert centers (Lyon and Strasbourg University Hospitals, France) between December 1, 2017, and June 31, 2018. Patients aged ≥18 years with a definite diagnosis of MS according to 2010 McDonald criteria were tested for MOG-Ab by using a cell-based assay (CBA) in Lyon and subsequently included. Positive samples were tested by investigators blinded to the first result with a second assay in a different laboratory (Barcelona, Spain) by using the same plasmid and secondary Ab.ResultsSerum samples from 685 consecutive patients with MS were analyzed for MOG-Ab. Median disease duration at sampling was 11.5 (interquartile range, 5.8–17.7) years, and 72% were women. Two (0.3%) patients resulted to be MOG-Ab-positive. The 2 patients were women aged 42 and 38 at disease onset and were diagnosed with secondary and primary progressive forms of MS, respectively. This positive result was confirmed by the CBA in Barcelona.ConclusionOur findings indicate that MOG-Ab are exceptional in MS phenotype, suggesting that the MOG-Ab testing should not be performed in typical MS presentation.

scholarly journals Antibodies to Infliximab and Adalimumab in Patients with Rheumatoid Arthritis in Clinical Remission: A Cross-Sectional Study

Arthritis ◽  
2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Grith P. Eng ◽  
Klaus Bendtzen ◽  
Henning Bliddal ◽  
Michael Stoltenberg ◽  
Marcin Szkudlarek ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Clinical Remission ◽  
Disease Duration ◽  
Cross Sectional Study ◽  
Infliximab Treatment ◽  
Sectional Study ◽  
Cross Sectional ◽  
Gene Assay ◽  
A Cell ◽  
Low Levels

Objective. To investigate if antibodies towards biological TNF-α inhibitors (anti-TNFi Abs) are present in patients with rheumatoid arthritis (RA) in clinical remission and to relate any anti-TNFi Abs to circulating level of TNF-α inhibitor (TNFi). Methods. Patients with RA, treated with infliximab or adalimumab, and in clinical remission (DAS28(CRP) < 2.6) were included from 6 out-patient clinics. In blood samples, presence of anti-TNFi Abs was determined by radioimmunoassay, and concentration of bioactive TNFi was measured by a cell-based reporter gene assay. Results. Anti-TNFi Abs were present in 8/44 patients (18%) treated with infliximab and 1/49 patients (2%) treated with adalimumab (p=0.012). In the former group, anti-TNFi Abs corresponded with low levels of TNFi (p=0.048). Anti-TNFi Ab-positive patients had shorter disease duration at initiation of TNFi therapy (p=0.023) but were similar for the rest of the compared parameters. Conclusions. In RA patients in clinical remission, anti-TNFi Abs occur frequently in patients treated with infliximab, while they occur rarely in patients treated with adalimumab. Presence of anti-infliximab Abs is accompanied by low or undetectable levels of infliximab. These data suggest that continued infliximab treatment may be redundant in a proportion of RA patients treated with infliximab and in clinical remission.

scholarly journals SARS-CoV-2 seroprevalence and asymptomatic viral carriage in healthcare workers: a cross-sectional study

Thorax ◽  
2020 ◽  
Vol 75 (12) ◽  
pp. 1089-1094 ◽  
Author(s):  
Adrian Shields ◽  
Sian E Faustini ◽  
Marisol Perez-Toledo ◽  
Sian Jossi ◽  
Erin Aldera ◽  
...  
Keyword(s):  
Intensive Care ◽  
Healthcare Workers ◽  
Venous Blood ◽  
Cross Sectional Study ◽  
Nasopharyngeal Swab ◽  
Sectional Study ◽  
University Hospitals ◽  
Cross Sectional ◽  
General Internal ◽  
Increased Risk

ObjectiveTo determine the rates of asymptomatic viral carriage and seroprevalence of SARS-CoV-2 antibodies in healthcare workers.DesignA cross-sectional study of asymptomatic healthcare workers undertaken on 24/25 April 2020.SettingUniversity Hospitals Birmingham NHS Foundation Trust (UHBFT), UK.Participants545 asymptomatic healthcare workers were recruited while at work. Participants were invited to participate via the UHBFT social media. Exclusion criteria included current symptoms consistent with COVID-19. No potential participants were excluded.InterventionParticipants volunteered a nasopharyngeal swab and a venous blood sample that were tested for SARS-CoV-2 RNA and anti-SARS-CoV-2 spike glycoprotein antibodies, respectively. Results were interpreted in the context of prior illnesses and the hospital departments in which participants worked.Main outcome measureProportion of participants demonstrating infection and positive SARS-CoV-2 serology.ResultsThe point prevalence of SARS-CoV-2 viral carriage was 2.4% (n=13/545). The overall seroprevalence of SARS-CoV-2 antibodies was 24.4% (n=126/516). Participants who reported prior symptomatic illness had higher seroprevalence (37.5% vs 17.1%, χ2=21.1034, p<0.0001) and quantitatively greater antibody responses than those who had remained asymptomatic. Seroprevalence was greatest among those working in housekeeping (34.5%), acute medicine (33.3%) and general internal medicine (30.3%), with lower rates observed in participants working in intensive care (14.8%). BAME (Black, Asian and minority ethnic) ethnicity was associated with a significantly increased risk of seropositivity (OR: 1.92, 95% CI 1.14 to 3.23, p=0.01). Working on the intensive care unit was associated with a significantly lower risk of seropositivity compared with working in other areas of the hospital (OR: 0.28, 95% CI 0.09 to 0.78, p=0.02).Conclusions and relevanceWe identify differences in the occupational risk of exposure to SARS-CoV-2 between hospital departments and confirm asymptomatic seroconversion occurs in healthcare workers. Further investigation of these observations is required to inform future infection control and occupational health practices.

scholarly journals Difference in the general medicine in-training examination score between community-based hospitals and university hospitals: a cross-sectional study based on 15,188 Japanese resident physicians

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yuji Nishizaki ◽  
Keigo Nozawa ◽  
Tomohiro Shinozaki ◽  
Taro Shimizu ◽  
Tomoya Okubo ◽  
...  
Keyword(s):  
Physical Examination ◽  
General Medicine ◽  
Cross Sectional Study ◽  
Medical Interview ◽  
Sectional Study ◽  
University Hospitals ◽  
Community Based ◽  
Cross Sectional ◽  
Clinical Competencies ◽  
Clinical Procedures

Abstract Background The general medicine in-training examination (GM-ITE) is designed to objectively evaluate the postgraduate clinical competencies (PGY) 1 and 2 residents in Japan. Although the total GM-ITE scores tended to be lower in PGY-1 and PGY-2 residents in university hospitals than those in community-based hospitals, the most divergent areas of essential clinical competencies have not yet been revealed. Methods We conducted a nationwide, multicenter, cross-sectional study in Japan, using the GM-ITE to compare university and community-based hospitals in the four areas of basic clinical knowledge“. Specifically, “medical interview and professionalism,” “symptomatology and clinical reasoning,” “physical examination and clinical procedures,” and “disease knowledge” were assessed. Results We found no significant difference in “medical interview and professionalism” scores between the community-based and university hospital residents. However, significant differences were found in the remaining three areas. A 1.28-point difference (95% confidence interval: 0.96–1.59) in “physical examination and clinical procedures” in PGY-1 residents was found; this area alone accounts for approximately half of the difference in total score. Conclusions The standardization of junior residency programs and the general clinical education programs in Japan should be promoted and will improve the overall training that our residents receive. This is especially needed in categories where university hospitals have low scores, such as “physical examination and clinical procedures.”

scholarly journals Serum Concentrations of Selected Organochlorines in Pregnant Women and Associations with Pregnancy Outcomes. A Cross-Sectional Study from Two Rural Settings in Cambodia

2020 ◽  
Vol 17 (20) ◽  
pp. 7652
Author(s):  
Margit Steinholt ◽  
Shanshan Xu ◽  
Sam Ol Ha ◽  
Duong Trong Phi ◽  
Maria Lisa Odland ◽  
...  
Keyword(s):  
Polychlorinated Biphenyls ◽  
Pregnant Women ◽  
Gestational Age ◽  
Low Income ◽  
Cross Sectional Study ◽  
Maternal Serum ◽  
Sectional Study ◽  
Serum Samples ◽  
Cross Sectional ◽  
Rural Settings

We conducted a cross-sectional study among 194 pregnant women from two low-income settings in Cambodia. The inclusion period lasted from October 2015 through December 2017. Maternal serum samples were analyzed for persistent organic pollutants (POPs). The aim was to study potential effects on birth outcomes. We found low levels of polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCP), except for heptachlors, β-hexachlorocyclohexane (HCH), heptachlor epoxide, and p,p’-DDE. There were few differences between the two study locations. However, the women from the poorest areas had significantly higher concentrations of p,p’-DDE (p < 0.001) and hexachlorobenzene (HCB) (p = 0.002). The maternal factors associated with exposure were parity, age, residential area, and educational level. Despite low maternal levels of polychlorinated biphenyls, we found significant negative associations between the PCB congeners 99 (95% CI: −2.51 to −0.07), 138 (95% CI: −1.28 to −0.32), and 153 (95% CI: −1.06 to −0.05) and gestational age. Further, there were significant negative associations between gestational age, birth length, and maternal levels of o,p’-DDE. Moreover, o,p’-DDD had positive associations with birth weight, and both p,p’-DDD and o,p’-DDE were positively associated with the baby’s ponderal index. The poorest population had higher exposure and less favorable outcomes.

scholarly journals A cross sectional study of leptospirosis and fetal death in Yucatan, Mexico

2016 ◽  
pp. 11-14 ◽  
Author(s):  
María Fidelia Cárdenas Marrufo ◽  
Ignacio Vado Solis ◽  
Gaspar Fernando Peniche Lara ◽  
Carlos Perez Osorio ◽  
José Correa Segura
Keyword(s):  
Spontaneous Abortion ◽  
Low Income ◽  
Fetal Death ◽  
Indirect Elisa ◽  
First Trimester ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Serum Samples ◽  
Recent Infection ◽  
Cross Sectional

Introduction: Leptospirosis is a zoonotic disease affecting mainly to low income human population. Acute leptospiral infection during pregnancy has been associated with spontaneous abortion and fetal death during the first trimester and the abortion may occur as consequence of systemic failure. Objective: To estimate the frequency of Leptospira interrogans infection in women with spontaneous abortion in the state of Yucatan, Mexico. Methods: A cross sectional study on women with spontaneous abortion was conducted. Serum samples were tested for Leptospirosis by the microaglutination test, to estimate the frequency of the infecting serovar. The indirect ELISA IgM was used to detect recent infection by L. interrogans. DNA was extracted from paraffin-embedded tissue of placenta for PCR detection of L. interrogans. Results: Overall frequency of infection with L. interrogans in the 81 women with abortion was 13.6%. Five of the 12 serovars evaluated were found and included. Two of the 11 women with abortion and positive to microaglutination test were also positive to the ELISA IgM test. None samples were positive for PCR Leptospira diagnosis. Conclusion: two women could be associated with spontaneous abortion due to leptospirosis, because they showed antibodies against L. interrogans in the microaglutination test and ELISA IgM assays. Differences between regions were found with respect to the prevalences of lesptospirosis.

scholarly journals Anti-carbamylated protein antibody isotype pattern differs between palindromic rheumatism and rheumatoid arthritis

2020 ◽  
Vol 12 ◽  
pp. 1759720X2097813
Author(s):  
Raul Castellanos-Moreira ◽  
Sebastian C. Rodriguez-Garcia ◽  
Sonia Cabrera-Villalba ◽  
María José Gomara ◽  
Georgina Salvador ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Duration ◽  
Fetal Calf Serum ◽  
Calf Serum ◽  
Cross Sectional Study ◽  
Enzyme Linked Immunosorbent Assay ◽  
Sectional Study ◽  
Antibody Isotype ◽  
Cross Sectional ◽  
Palindromic Rheumatism

Background: A restricted response against citrullinated peptides/proteins, with less isotype usage, has been found in palindromic rheumatism (PR) in comparison with rheumatoid arthritis (RA). We hypothesized that this different antibody response may be observed for other post-translational modified proteins. We compared the prevalence and isotype usage of two specificities of anti-carbamylated peptide/protein antibodies (Anti-CarP) in patients with PR and RA. Methods: Cross-sectional study including 54 patients with pure PR and 53 patients with RA, matched by sex, age, disease duration and ACPA. Anti-CarP specificities were determined by home-made enzyme-linked immunosorbent assay tests using a synthetic chimeric fibrin/filaggrin homocitrullinated peptide (CFFHP) and fetal calf serum (FCS) homocitrullinated protein as antigens. IgG, IgA and IgM isotypes were measured. Results: Anti-CarP were positive (CFFHP or FCS) in 24% and 64% of patients with PR and RA, respectively ( p < 0.005). All Anti-CarP isotype proportions were significantly lower in PR than in RA: Anti-CarP-IgG (24% versus 51%), Anti-CarP-IgA (7% versus 34%) and Anti-CarP-IgM (7% versus 36%). Mean titers of Anti-CarP isotypes were also lower in PR. In Anti-CarP positive patients, the isotype distribution differed between PR and RA: IgG Anti-CarP was used in all PR patients and in 79% of RA patients. By contrast, a significantly lower isotype usage of both IgA (31% versus 53%) and IgM (31% versus 56%) was observed in PR patients. No significant differences in clinical or demographic characteristics were observed according to Anti-CarP status in PR patients, except for a higher prevalence of ACPA and higher mean titers of ACPA and rheumatoid factor in Anti-CarP positive patients. Conclusion: Anti-CarP are found in patients with PR but in a lower proportion and with a different isotype usage from in RA, suggesting a distinct B cell response to homocitrullinated antigens in PR.

scholarly journals Prevalence and Associated Factors of Diabetic Retinopathy in Quzhou, China: A Cross-Sectional Study

2021 ◽  
Author(s):  
Zian Cheng ◽  
Xianchen Jiang ◽  
Weifen Zhu ◽  
Xinxin Zhang ◽  
Xiaofang Ying ◽  
...  
Keyword(s):  
Risk Factors ◽  
Diabetic Retinopathy ◽  
Disease Duration ◽  
Cross Sectional Study ◽  
Zhejiang Province ◽  
Sectional Study ◽  
Good Glycemic Control ◽  
Cross Sectional ◽  
Duration Of Diabetes ◽  
High Risk Factors

Abstract Objectives To assess the prevalence and risk factors for fundus status among patients with type 2 diabetes mellitus (T2DM) using fundus screening in four towns of Quzhou city, Zhejiang province of China. Methods This cross-sectional study included 230 T2DM patients of four towns in Quzhou city, Zhejiang province of China. Participants were examined for the diabetes related fundus abnormalities and possible risk factors. Results Almost half of the T2DM patients (53.04%) reported with diabetic retinopathy (DR). Patients with diabetic retinopathy had longer duration of diabetes (P < 0.001) and higher HbA1c (P < 0.01). Risk factors for development of diabetic retinopathy included duration of diabetes and HbA1c. The prevalence of DR increased with the prolongation of the disease duration. The prevalence of DR was 28.79% in the group of disease duration < 5 years, 46.25% in the group of disease duration 5–10 years, 72.92% in the group of disease duration 10–15 years and 88.57% in the group of disease duration ≥ 15 years. What’s more, the prevalence of DR also increased with the increment of HbA1c levels. The prevalence of DR was 44.62% in the group of HbA1c < 7%, 53.13% in the group of HbA1c 7%-8%, 62.92% in the group of HbA1c ≥ 8%. Conclusion The prevalence of DR was disturbingly high. Risk factors for DR were similar to other studies and included duration of diabetes and HbA1c. Thus, good glycemic control remains the core foundation of managing DR.

scholarly journals Possible protective role of metformin therapy on colonic polyps in acromegaly: an exploratory cross-sectional study

2021 ◽  
Vol 184 (3) ◽  
pp. 423-429
Author(s):  
M Albertelli ◽  
E Nazzari ◽  
A Dotto ◽  
L F Grasso ◽  
S Sciallero ◽  
...  
Keyword(s):  
Acetylsalicylic Acid ◽  
Disease Duration ◽  
Colonic Polyps ◽  
Cross Sectional Study ◽  
Protective Role ◽  
Diabetic Patients ◽  
Sectional Study ◽  
Cross Sectional ◽  
Acid Intake

Context Colonic polyps occur in 30–40% of acromegalic patients, increasing the risk of colon carcinoma. Although debated, there is emerging evidence that metformin may play a protective role in diabetic and non-diabetic patients with colonic polyps and its use in chemoprevention is currently explored. Objective Evaluate the prevalence of colonic polyps in acromegalic patients treated or not with metformin and explore its possible protective role. Design Exploratory cross-sectional study in two tertiary Italian referral centres. Met hods: Out of 153 acromegalic patients, we selected 58 patients (36–82 years; f: 33) who had at least one colonoscopy performed within the first 2 years of diagnosis. Presence of colonic polyps/cancer and related risk factors, current metformin and acetylsalicylic acid intake, disease duration, therapies for acromegaly, hormonal and metabolic parameters were assessed. Results An overall prevalence of 36% polyps was found. Based on the presence of polyps, we identified two groups, comparable for age, BMI, disease duration, glucose, insulin, HOMA-IR, HbA1c, GH and IGF-I levels. Of the patients with polyps (including three adenocarcinomas) only 24% were treated with metformin vs 57% of patients without polyps. Multivariate analysis confirmed a significant negative association between colonic polyps and metformin intake (OR: 0.22, 95% CI: 0.06-0.77, P = 0.01), whereas no significant association was found between polyps and age (P = 0.10), overweight/obesity (P = 0.54), smoking (P = 0.15), acetylsalicylic acid intake (P = 0.99), disease duration (P = 0.96), somatostatin analogues treatment (P = 0.70). Conclusions These findings, though deriving from an exploratory study, could suggest a protective role of metformin on the development of colonic polyps in acromegaly, and need to be confirmed in an extended study population.

scholarly journals Excessive Daytime Sleepiness Is Associated With Non-motor Symptoms of Multiple System Atrophy: A Cross-Sectional Study in China

2022 ◽  
Vol 12 ◽  
Author(s):  
Hui Wang ◽  
Xiangdong Tang ◽  
Junying Zhou ◽  
Yanming Xu
Keyword(s):  
Risk Factors ◽  
Multiple System Atrophy ◽  
Excessive Daytime Sleepiness ◽  
Disease Duration ◽  
Cross Sectional Study ◽  
Motor Dysfunction ◽  
Motor Symptoms ◽  
Sectional Study ◽  
Cross Sectional ◽  
Non Motor Symptoms

Objectives: Excessive daytime sleepiness (EDS) in multiple system atrophy (MSA) has received scant attention in the literature, thus the present cross-sectional study aimed to investigate the prevalence of EDS and its potential risk factors among Chinese patients with MSA.Methods: A total of 66 patients with MSA (60.6% males) were consecutively recruited. Eighteen patients (27.3%, 13 men) with Epworth Sleepiness Scale score &gt;10 were defined as having EDS. Demographic, motor [Unified Multiple-System Atrophy (UMSARS)] and non-motor symptoms [Non-Motor Symptoms Scale (NMSS)], and sleep parameters [polysomnography (PSG)] were compared between patients with MSA with and without EDS. A logistic regression analysis was used to calculate the risk factors of EDS in patients with MSA.Results: There were no significant differences in age, sex, MSA onset age, disease duration, MSA sub-type, and motor symptom severity between MSA patients with and without EDS. However, compared with the MSA patients without EDS, their counterparts with EDS had higher scores of NMSS (65.3 ± 23.1 vs. 43.4 ± 25.3, P = .0002), Hamilton Anxiety (HAMA) [15.3 (10.3–20.0) vs. 9.5 (3.0–15.0), P = 0.006], Hamilton Depression (HAMD) [13.7 (12.5–17.8) vs. 9.0 (4.0–13.0), P = 0.015], and Fatigue Severity Scale (FSS) [29.8 (17.3–47.8) vs. 18.7 (10.3–21.8), P = 0.040]. Conversely, the patients with EDS had lower score of Mini-Mental State Examination (MMSE) [23.3 (20.3–27.0) vs. 25.7 (22.0–29.0), P = 0.023]. Similarly, there was a significantly lower percentage of N3 sleep (%) [0.3 (0–0) vs. 2.0 (0–0), P = 0.007] and a higher apnea-hypopnea index (AHI/h) [30.5 (14.5–47.8) vs. 19.3 (5.0–28.7), P = 0.034] in patients with EDS. After adjusting for age, sex, disease duration, MSA sub-type, and UMSARS score, the odds ratio (OR) (95% CI) of EDS was higher while increasing scores in FSS [1.06 (1.02–1.11)], HAMA [1.16 (1.04–1.28)], HAMD [1.13 (1.02–1.25)], NMSS [1.04 (1.01–1.07)], and AHI [1.03 (1.00–1.10)]. The OR of EDS was lower while the MMSE score was increasing [0.85 (0.72–1.00)].Conclusions: The presence and severity of EDS may be significantly associated with the non-motor dysfunction, including fatigue, anxiety, depression, cognitive dysfunction, and sleep-related breathing disorder, but not with the motor dysfunction in MSA.

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