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1.
IBRO Neurosci Rep ; 13: 513-522, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36457855

ABSTRACT

Background: Unemployment is common among people with multiple sclerosis (pwMS) and has been associated with subjective cognitive difficulties, specifically in memory, attention, and executive functioning. However, longitudinal research on subjective cognitive difficulties and employment is scarce. Objective: We investigated whether subjective cognitive impairment (SCI), based on the clinical cut-off score of the MS Neuropsychological Screening Questionnaire (MSNQ), was associated with work status and negative work events (NWE) at baseline and after 2 years. Moreover, we investigated whether four MSNQ subdomains were related to work status and NWE. Methods: 287 participants (77.4% female, median age = 42 years) completed questionnaires on subjective cognitive functioning, depression, anxiety, and fatigue, and completed the Symbol Digit Modalities Test (SDMT). After baseline comparisons, logistic regression analyses were performed, with work status and NWE at baseline, and employment change and NWE change within 2 years after baseline as dependent variables. Independent variables included SCI and the MSNQ domains. Covariates anxiety, depression, fatigue, and SDMT were added. Results: SCI, depression and anxiety were associated with work status (Nagelkerke R 2 = .286), but only SCI was associated with employment change (Nagelkerke R 2 = .164). No predictors were associated with NWE at baseline or follow-up. In addition, no MSNQ subdomain was related to work status, employment change or NWE. Conclusion: Unemployed pwMS and pwMS with a deteriorated work status reported more cognitive difficulties after 2 years than employed pwMS or pwMS with a stable work status. In addition, depression, and anxiety were associated with work status.

2.
J Neurol Sci ; 427: 117561, 2021 Aug 15.
Article in English | MEDLINE | ID: mdl-34216973

ABSTRACT

BACKGROUND: Multiple sclerosis (MS) poses a major threat to sustainable employability. Identifying conditions and factors that promote work participation is of great importance. Our objective was to explore the contribution of personality traits in explaining occupational functioning in MS. METHODS: 241 participants with relapsing-remitting MS (78% female, median age: 42.0 years, median EDSS: 2.0) and 60 healthy controls (70% female, median age: 45.0 years) underwent neuropsychological and neurological examinations and completed questionnaires. Multivariate logistic and linear regression analyses were conducted to examine relations between personality traits and self-reported occupational functioning, while accounting for known correlates. RESULTS: Personality traits were not associated with self-reported occupational functioning when correcting for known correlates. A higher impact of fatigue (B = -0.05, p = .005 and B = -0.04, p = .009) and depression (B = -0.22, p = .008 and B = -0.21, p = .01) were associated with no paid job (R2 = 0.13) and considering to reduce work hours (R2 = 0.12). A higher impact of fatigue (B = -0.05, p = .008, ß = 0.46, p = .001 and ß = -0.36, p = .001) was associated with absenteeism from work (R2 = 0.15), more presenteeism (R2 = 0.35) and lower work ability (R2 = 0.25). A higher impact of fatigue (ß = 0.46, p = .001) and anxiety (ß = 0.25, p = .001) were associated with more work difficulties (R2 = 0.54). CONCLUSION: Personality traits did not explain additional variance in self-reported occupational functioning in persons with relapsing-remitting MS with mild disability. The impact of fatigue was the main and most consistent correlate of occupational functioning, often combined with depression or anxiety. Total explained variance of the models was limited, emphasizing the need to additionally examine other (contextual) factors when considering occupational challenges in MS.


Subject(s)
Multiple Sclerosis, Relapsing-Remitting , Multiple Sclerosis , Adult , Depression/epidemiology , Depression/etiology , Fatigue/epidemiology , Fatigue/etiology , Female , Humans , Male , Middle Aged , Multiple Sclerosis, Relapsing-Remitting/epidemiology , Personality , Self Report
3.
Mult Scler Relat Disord ; 31: 5-11, 2019 Jun.
Article in English | MEDLINE | ID: mdl-30877926

ABSTRACT

BACKGROUND: Multiple sclerosis (MS) is a chronic disorder of the central nervous system with an unpredictable disease course. Life partners often become caregivers, which can be both rewarding and challenging, as the caregiver's physical and mental health is often negatively affected. Previous studies on caregiver strain focused on caregivers of persons with MS with relatively high disability levels, while caregiver strain may already be experienced by life partners living with mildly disabled persons with MS. OBJECTIVE: The current study examines factors associated with caregiver strain in life partners of persons with mild disability due to relapsing-remitting MS. METHODS: We included 173 persons with relapsing-remitting MS (79% female; mean age 42.8 years; 90% employed; median EDSS 2.0) and their life partners. The life partners completed questionnaires on caregiver strain and neuropsychiatric and cognitive functioning of the person with MS. The persons with MS completed questionnaires about demographics, fatigue, personality, physical, cognitive and neuropsychiatric functioning, and underwent neuropsychological and neurological examinations. A linear regression analysis was conducted to examine predictors of caregiver strain. RESULTS: 24% of the life partners experienced above average levels of caregiver strain. A multivariate linear regression analysis revealed that a higher age of the person with MS (ß = 0.16, p = 0.04), more physical disability (ß = 0.17 p = 0.04), more cognitive and neuropsychiatric problems of the person with MS as reported by the life partner (ß = 0.33, p = 0.001) and higher severity of neuropsychiatric symptoms as reported by the life partner (ß = 0.32, p = 0.001) were associated with higher caregiver strain (R2 = 0.49). CONCLUSION: Higher caregiver strain in life partners of persons with mild disability due to relapsing-remitting MS was primarily associated with cognitive and neuropsychiatric problems of the person with MS.


Subject(s)
Caregivers/psychology , Multiple Sclerosis, Relapsing-Remitting/psychology , Stress, Psychological/psychology , Adult , Anxiety/complications , Depression/complications , Disabled Persons/psychology , Fatigue , Female , Humans , Male , Middle Aged , Neuropsychological Tests , Stress, Psychological/complications , Surveys and Questionnaires
4.
Health Qual Life Outcomes ; 16(1): 113, 2018 Jun 01.
Article in English | MEDLINE | ID: mdl-29859113

ABSTRACT

BACKGROUND: The aim of this study was to examine whether work capabilities differ between workers with Multiple Sclerosis (MS) and workers from the general population. The second aim was to investigate whether the capability set was related to work and health outcomes. METHODS: A total of 163 workers with MS from the MS@Work study and 163 workers from the general population were matched for gender, age, educational level and working hours. All participants completed online questionnaires on demographics, health and work functioning. The Capability Set for Work Questionnaire was used to explore whether a set of seven work values is considered valuable (A), is enabled in the work context (B), and can be achieved by the individual (C). When all three criteria are met a work value can be considered part of the individual's 'capability set'. RESULTS: Group differences and relationships with work and health outcomes were examined. Despite lower physical work functioning (U = 4250, p = 0.001), lower work ability (U = 10591, p = 0.006) and worse self-reported health (U = 9091, p ≤ 0.001) workers with MS had a larger capability set (U = 9649, p ≤ 0.001) than the general population. In workers with MS, a larger capability set was associated with better flexible work functioning (r = 0.30), work ability (r = 0.25), self-rated health (r = 0.25); and with less absenteeism (r = - 0.26), presenteeism (r = - 0.31), cognitive/neuropsychiatric impairment (r = - 0.35), depression (r = - 0.43), anxiety (r = - 0.31) and fatigue (r = - 0.34). CONCLUSIONS: Workers with MS have a larger capability set than workers from the general population. In workers with MS a larger capability set was associated with better work and health outcomes. TRIAL REGISTRATION: This observational study is registered under NL43098.008.12: 'Voorspellers van arbeidsparticipatie bij mensen met relapsing-remitting Multiple Sclerose'. The study is registered at the Dutch CCMO register ( https://www.toetsingonline.nl ). This study is approved by the METC Brabant, 12 February 2014. First participants are enrolled 1st of March 2014.


Subject(s)
Anxiety/etiology , Depression/etiology , Employment/statistics & numerical data , Multiple Sclerosis/complications , Outcome Assessment, Health Care/standards , Work Capacity Evaluation , Absenteeism , Adult , Case-Control Studies , Cross-Sectional Studies , Employment/psychology , Fatigue/etiology , Female , Humans , Male , Middle Aged , Multiple Sclerosis/psychology , Quality of Life , Young Adult
5.
Mult Scler ; 17(9): 1146-8, 2011 Sep.
Article in English | MEDLINE | ID: mdl-21586485

ABSTRACT

Cardiovascular autonomic dysfunction is not uncommon in multiple sclerosis (MS) and is related to the involvement of the vegetative areas of cardiac innervations in the medulla oblongata. It has been suggested that this may contribute to the occurrence of sudden death in MS. In this case report, we present a patient with active relapsing-remitting MS who died unexpectedly due to the sudden onset of cardiac arrythmias. Post-mortem examination showed the presence of active demyelinating lesions in the medulla oblongata. As far as we know, this is the first case report clearly linking sudden cardiac death to active MS on the histopathological level.


Subject(s)
Death, Sudden, Cardiac/pathology , Demyelinating Diseases/pathology , Medulla Oblongata/pathology , Multiple Sclerosis, Relapsing-Remitting/pathology , Adult , Death, Sudden, Cardiac/etiology , Female , Humans
6.
Neuroscience ; 164(4): 1876-86, 2009 Dec 29.
Article in English | MEDLINE | ID: mdl-19796669

ABSTRACT

Muscle weakness is consistently associated with falls in the elderly people, typically when present along with other risk factors. However, it remains unknown whether and how muscle weakness alone affects balance. This hampers development of more effective fall prevention strategies. Clinical observations suggest that the amount and distribution of muscle weakness influences balance control. We therefore investigated balance corrections in patients with either predominantly proximal (limb girdle muscular dystrophy (LGMD); n=8) or distal (distal spinal muscular atrophy; n=5) leg weakness, and 27 matched healthy controls. Balance was perturbed using surface tilt rotations that were delivered randomly in eight directions. Balance measures were full body kinematics and surface electromyographic activity (EMG) of leg, arm, and trunk muscles. Both patient groups were more unstable than controls, as reflected by greater excursions of the centre of mass (COM), especially in the pitch (anterior-posterior (AP)) plane. COM displacements were greater in distal weakness patients. Patients with distal weakness had excessive and unstable trunk, knee and ankle movements, and this was present following both forward and backward directed balance perturbations, possibly reflecting the greater use of distal leg muscles in these directions. In contrast, the less weak proximal weakness patients demonstrated unstable trunk and ankle movements only for backward directed balance perturbations. Both patient groups used arm movements to compensate for their instability. We conclude that primarily distal but also proximal muscle weakness leads to significant postural instability. This observation, together with the retained ability of patients to use compensatory arm movements, provides targets that may be amenable to improvement with therapeutic intervention.


Subject(s)
Muscle Weakness/physiopathology , Muscle, Skeletal/physiopathology , Postural Balance , Biomechanical Phenomena , Electromyography , Female , Humans , Kinetics , Male , Middle Aged , Movement , Rotation
7.
Tijdschr Gerontol Geriatr ; 40(1): 29-33, 2009 Feb.
Article in Dutch | MEDLINE | ID: mdl-19326700

ABSTRACT

Two patients presented with progressive cognitive impairment and parkinsonism related symptoms while being treated with sodium valproate. Both patients suffered from progressive cognitive decline and mobility disorders with an insidious onset over a period of months to years. After discontinuation of sodium valproate both debilitating symptoms resolved nearly completely. There is a growing prevalence and incidence of epilepsy above the age of 60 and a great number of these patients are on sodium valproate treatment. All clinicians treating elderly patients should be aware of the fact that this treatment can cause reversible cognitive decline and parkinsonism probably due to impairment of mitochondrial complex I function. Discontinuation of sodium valproate is strongly recommended in all patients with development of cognitive impairment or parkinsonism or both during sodium valproate treatment.


Subject(s)
Anticonvulsants/adverse effects , Cognition Disorders/chemically induced , Parkinson Disease, Secondary/chemically induced , Valproic Acid/adverse effects , Aged , Anticonvulsants/therapeutic use , Cognition Disorders/epidemiology , Epilepsy/drug therapy , Humans , Male , Parkinson Disease, Secondary/epidemiology , Recovery of Function , Valproic Acid/therapeutic use
8.
Eur Neurol ; 59(3-4): 159-63, 2008.
Article in English | MEDLINE | ID: mdl-18230873

ABSTRACT

BACKGROUND/AIMS: To determine the efficacy of infliximab combined with weekly methotrexate in drug-naive recent-onset dermatomyositis and polymyositis. METHODS: A multicentre open-label controlled trial was conducted. Disease activity was assessed using patient's and physician's disease activity assessment, manual muscle testing (MMT), handheld dynamometry, and serum CK. The primary objective was to assess the efficacy using MMT after a period of 26 weeks. RESULTS: The study was terminated prematurely because of a low inclusion rate and a high drop-out rate due to disease progression and the occurrence of an infusion reaction. The few patients who did reach the primary endpoint showed improvement in all aspects studied. CONCLUSION: Infliximab combined with weekly methotrexate might be safe and well tolerated in a small subgroup of patients with drug-naive recent-onset myositis. At present, we do not advocate the use of this treatment because treatment response cannot be predicted beforehand.


Subject(s)
Antibodies/therapeutic use , Antirheumatic Agents/therapeutic use , Dermatomyositis/drug therapy , Methotrexate/therapeutic use , Polymyositis/drug therapy , Tumor Necrosis Factor-alpha/immunology , Adolescent , Adult , Aged , C-Reactive Protein/metabolism , Drug Therapy, Combination , Evaluation Studies as Topic , Female , Follow-Up Studies , Humans , Middle Aged , Time Factors , Treatment Outcome
9.
Mult Scler ; 13(5): 679-82, 2007 Jun.
Article in English | MEDLINE | ID: mdl-17548452

ABSTRACT

Diagnostic criteria for neuromyelitis optica (NMO) state that there should be no active disease outside the optic nerves and spinal cord. However, several cases have been described with symptomatic brain involvement. We describe an autopsy case of a patient with NMO and symptomatic involvement of the brain. The histopathology of the brain lesions is typical for NMO, with extensive macrophage infiltration, including perivascular accumulation of large numbers of eosinophils. This is the first case that clearly shows that in NMO, the histopathology of the brain lesions is identical to that of the lesions in the optic nerves and spinal cord.


Subject(s)
Brain/pathology , Neuromyelitis Optica/pathology , Adult , Brain/immunology , Eosinophils/pathology , Fatal Outcome , Female , Humans , Macrophages/pathology , Neuromyelitis Optica/immunology , Spinal Cord/immunology , Spinal Cord/pathology
11.
Ann Rheum Dis ; 65(12): 1635-8, 2006 Dec.
Article in English | MEDLINE | ID: mdl-16679430

ABSTRACT

OBJECTIVE: To elucidate the clinical importance of the anti-signal recognition particle (SRP) autoantibody in patients with myositis. METHODS: Retrospective systematic assessment of the clinical, laboratory and histological characteristics of 23 anti-SRP-positive patients from six European centres. Data were compared with a large group of anti-SRP-negative patients with myositis published previously. RESULTS: Clinically, patients with anti-SRP autoantibodies often had a severe symmetric proximal muscle weakness resulting in marked disability, dysphagia and highly elevated levels of serum creatine kinase. Three patients had typical dermatomyositis rashes. The disease was associated with the occurrence of extramuscular signs and symptoms including interstitial lung disease. No association was found with an increased risk of cardiac involvement, and the disease carried a reasonably favourable prognosis with most patients responding to treatment. None of the patients had the typical histological features of myositis. Most muscle biopsy specimens showed the presence of necrotic muscle fibres and no inflammatory infiltrates. CONCLUSIONS: Anti-SRP autoantibodies are associated with a syndrome of a necrotising myopathy in the spectrum of immune-mediated myopathies that differs from typical polymyositis. Further studies are needed to elucidate the pathogenesis and to clarify the role of the anti-SRP autoantibodies in this unique disease.


Subject(s)
Autoantibodies/blood , Autoimmune Diseases/immunology , Polymyositis/immunology , Signal Recognition Particle/immunology , Adult , Autoimmune Diseases/drug therapy , Autoimmune Diseases/pathology , Biomarkers/blood , Biopsy , Creatine Kinase/blood , Dermatomyositis/complications , Dermatomyositis/drug therapy , Dermatomyositis/immunology , Dermatomyositis/pathology , Female , Humans , Immunologic Factors/therapeutic use , Lung Diseases, Interstitial/etiology , Lung Diseases, Interstitial/immunology , Male , Middle Aged , Muscle Weakness/etiology , Muscle Weakness/immunology , Muscular Atrophy/etiology , Muscular Atrophy/immunology , Muscular Atrophy/pathology , Polymyositis/complications , Polymyositis/drug therapy , Polymyositis/pathology , Prognosis , Retrospective Studies , Treatment Outcome
12.
Ann Rheum Dis ; 65(2): 242-5, 2006 Feb.
Article in English | MEDLINE | ID: mdl-16410528

ABSTRACT

OBJECTIVES: To assess the clinical implications of autoantibodies directed against different parts of the Mi-2 beta autoantigen in patients with myositis. METHODS: A systematic assessment of the clinical, laboratory, and histological characteristics of 48 anti-Mi-2 positive patients from six European centres was made. Anti-Mi-2 autoantibodies were determined with an ELISA using four overlapping fragments spanning the entire amino acid sequence of the autoantigen. Data were compared with results for a large group of anti-Mi-2 negative patients with myositis published previously. RESULTS: Anti-Mi-2 autoantibodies were found in dermatomyositis, polymyositis, and inclusion body myositis. In general, myositis with anti-Mi-2 autoantibodies was characterised by relatively mild disease, sometimes accompanied by extra-muscular symptoms, including arthralgia, arthritis, Raynaud's phenomenon, and interstitial lung disease. Cardiac disease was not seen, and treatment response was fair. No differences were found between patients with autoantibodies to different fragments of the Mi-2 beta antigen, except for a potentially increased risk of cancer in patients with antibodies directed to the N-terminal fragment of the autoantigen. CONCLUSIONS: Anti-Mi-2 autoantibodies are not a marker of a specific subtype of myositis. No significant differences between patients with autoantibodies to different fragments of the Mi-2 beta autoantigen are found, with the possible exception of an increased risk of cancer in patients with antibodies to the N-terminal fragment.


Subject(s)
Adenosine Triphosphatases/immunology , Autoantibodies/blood , Autoantigens/immunology , DNA Helicases/immunology , Myositis/immunology , Chi-Square Distribution , Enzyme-Linked Immunosorbent Assay , Europe , Female , Humans , Male , Mi-2 Nucleosome Remodeling and Deacetylase Complex , Muscular Atrophy/complications , Muscular Atrophy/immunology , Myositis/complications , Neoplasms/etiology , Peptide Fragments/immunology , Raynaud Disease/complications , Raynaud Disease/immunology , Risk Assessment , Statistics, Nonparametric
15.
J Neurol ; 252(5): 534-7, 2005 May.
Article in English | MEDLINE | ID: mdl-15726253

ABSTRACT

Myositis specific autoantibodies (MSAs) are proven to be specific for myositis compared with other inflammatory connective tissue diseases. Their specificity compared, however, with other neuromuscular disorders, which are included in the differential diagnosis of patients in whom the diagnosis myositis is under consideration, is unknown. We prospectively screened sera from 107 patients with various neuromuscular disorders for the most common MSAs and compared the results with the findings in a group of 97 myositis patients, published previously. Special attention was paid to patients with facioscapulohumeral muscular dystrophy (FSHD), an autosomal dominant muscle disease with marked inflammation in skeletal muscle tissue. Only one patient in the neuromuscular disorders group tested positive for an MSA, compared with 41 in the myositis group, resulting in a specificity of 99%. None of the FSHD patients tested positive. We conclude that the tested MSAs are highly specific for myositis and that they are not merely associated with muscle inflammation.


Subject(s)
Autoantibodies/blood , Myositis/blood , Confidence Intervals , Humans , Neuromuscular Diseases/blood , Prospective Studies , Sensitivity and Specificity
18.
J Neurol Neurosurg Psychiatry ; 75(1): 136-9, 2004 Jan.
Article in English | MEDLINE | ID: mdl-14707323

ABSTRACT

BACKGROUND: Identification of mononuclear cellular infiltrates in skeletal muscle tissue is the histological cornerstone of the diagnosis of idiopathic inflammatory myopathy (IIM). However, these infiltrates are not always present. OBJECTIVE: To determine whether MHC class I antigen expression on the sarcolemma, which is absent in normal muscle tissue, is upregulated in IIM and could serve as an additional diagnostic test. METHODS: Expression of MHC class I antigens was studied in 224 muscle samples of 61 adult patients with IIM (9 dermatomyositis, 23 polymyositis, 29 inclusion body myositis) and 163 controls (normal subjects and patients with various neuromuscular disorders) in a prospective blinded manner. RESULTS: The sensitivity of the test for diagnosing IIM was 78% (95% confidence interval (CI), 66% to 88%), with a specificity of 95% (91% to 98%). The sensitivity before the start of immunosuppressive treatment was 89% (76% to 96%). The sensitivity was not changed by including all patients who had been on immunosuppressive treatment for less than four weeks before muscle biopsy (sensitivity 90% (79% to 97%)). False positive results were found in only seven controls (4%), six of whom had a muscular dystrophy. CONCLUSIONS: Detection of sarcolemmal MHC class I is a valid test for IIM. It is not affected by the short term use of immunosuppressive agents (less than four weeks) and it should be incorporated in the histological evaluation when the diagnosis of IIM is under consideration or needs to be excluded.


Subject(s)
HLA Antigens/analysis , Myositis/diagnosis , Myositis/immunology , Diagnosis, Differential , Humans , Immunosuppressive Agents/therapeutic use , Muscle, Skeletal/immunology , Muscle, Skeletal/pathology , Sensitivity and Specificity
19.
Ned Tijdschr Geneeskd ; 147(31): 1485-9, 2003 Aug 02.
Article in Dutch | MEDLINE | ID: mdl-12924076

ABSTRACT

In three women, aged 60, 45 and 38 years, who presented with exertional dyspnoea (due to lung fibrosis) and Raynaud's phenomenon, dermatomyopathy and Raynaud's phenomenon, and symmetrical arthralgia and myalgia, respectively, the anti-synthetase syndrome was diagnosed. The anti-synthetase syndrome consists of myositis, idiopathic interstitial lung disease, polyarthritis and Raynaud's phenomenon. The syndrome is characterised by the presence of autoantibodies directed against aminoacyl-tRNA synthetases. A thorough knowledge of this syndrome is required to anticipate manifestations of the disease, which can sometimes be masked and are not always part of the treating physician's field of specialty. The patients were treated with immunosuppressive therapy (azathioprine, prednisone, methotrexate) and recovered considerably.


Subject(s)
Amino Acyl-tRNA Synthetases/immunology , Autoantibodies/analysis , Myositis/immunology , Pulmonary Fibrosis/immunology , Raynaud Disease/immunology , Adult , Arthritis/immunology , Arthritis/physiopathology , Arthritis/therapy , Dermatomyositis/immunology , Dermatomyositis/physiopathology , Dermatomyositis/therapy , Female , Humans , Immunosuppressive Agents/therapeutic use , Lung , Middle Aged , Myositis/physiopathology , Myositis/therapy , Pulmonary Fibrosis/physiopathology , Pulmonary Fibrosis/therapy , Raynaud Disease/physiopathology , Raynaud Disease/therapy , Syndrome
20.
Eur Neurol ; 50(1): 10-5, 2003.
Article in English | MEDLINE | ID: mdl-12824706

ABSTRACT

Tumor necrosis factor alpha neutralization seems a rational therapy for myositis because this proinflammatory cytokine has been implicated in the pathogenesis of this disorder. Until now, we have treated 2 patients with a chimeric anti-TNF-alpha monoclonal antibody (infliximab). Both patients demonstrated a marked and sustained subjective and objective improvement without the occurrence of any side effects. These preliminary results suggest that anti-TNF-alpha treatment with infliximab is a safe and rapidly effective therapy for myositis.


Subject(s)
Antibodies, Monoclonal/therapeutic use , Dermatomyositis/drug therapy , Polymyositis/drug therapy , Tumor Necrosis Factor-alpha/antagonists & inhibitors , Adult , Antibodies, Monoclonal/adverse effects , Biopsy , Creatine Kinase/blood , Cytokines/blood , Dermatomyositis/immunology , Dermatomyositis/pathology , Drug Administration Schedule , Electromyography/drug effects , Female , Follow-Up Studies , Humans , Infliximab , Infusions, Intravenous , Isometric Contraction/drug effects , Middle Aged , Muscle, Skeletal/pathology , Polymyositis/immunology , Polymyositis/pathology , Treatment Outcome , Tumor Necrosis Factor-alpha/physiology
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