PubMed HealthSearch

SEARCH · PubMed Health

Results for “Systemic Inflammatory Response Syndrome”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 19 recordsLinked to original sources

The X-Linked TLR7 rs179008 T Allele Is Associated with an Increased Risk of Severe Multisystem Inflammatory Syndrome in Children/Kawasaki-like Syndrome in SARS-CoV-2-Infected Boys.

The X-linked TLR7 rs179008 T allele has been associated with altered antiviral immunity. Given their shared inflammatory pathways and higher pediatric mortality rates in Brazil during the pandemic, we investigated their association with multisystem inflammatory syndrome in children (MIS-C) together with Kawasaki disease (KS) following SARS-CoV-2 infection. A cross-sectional study (2021-2022) analyzed 73 hospitalized children (<13 years) with confirmed COVID-19. Genotyping for TLR7 rs179008, TLR8 (rs3764879, rs2407992), and TLR3 rs3775291 was performed via PCR and Sanger sequencing. MIS-C/KS cases were identified using CDC criteria, with severity classified by the need for ICU care. Statistical analysis included Fisher's exact test and relative risk (RR) calculations. Hemizygous boys carrying the TLR7 T allele had a 1.87-fold higher risk of MIS-C/KS (p = 0.007) and a 1.75-fold increased risk of severe or critical outcomes. The T allele frequency was 2.6&#xd7; higher in MIS-C/KS cases versus other COVID-19 presentations. All fatalities occurred in boys (3/8 MIS-C cases) with one T-allele carrier. No associations were found for TLR8 or TLR3 variants. The TLR7 rs179008 T allele is a potential genetic risk factor for severe post-COVID-19 inflammatory syndromes in boys, likely due to impaired immune signaling. These findings highlight its utility as a biomarker for risk stratification in pediatric populations.

Humans

Antibody repertoire associated with clinically diverse presentations of pediatric SARS-CoV-2 infection.

Pediatric SARS-CoV-2 infection can give rise to a range of clinical presentations, from asymptomatic or mild cases to severe pulmonary COVID-19, and to multisystem inflammatory syndrome in children (MIS-C). The latter is characterized by hyperinflammation and involvement of multiple organs. Although various aspects of antibody responses to pediatric SARS-CoV-2 infection have been reported, there has been limited research on the parallel antibody responses to both viral and self-antigens. We examined whether clinical phenotypes were linked to particular antiviral antibody and autoantibody profiles. By using custom arrays, we discovered that all manifestations of SARS-CoV-2 infection were linked to increased autoantibody production when compared to uninfected subjects, suggesting that pediatric SARS-CoV-2 infection may predispose to immune dysregulation. We observed subtle differences in autoantibody patterns among infection groups, with some autoantibodies being more associated with mild symptoms and others linked to severe disease manifestations. In particular, subsets of subjects with MIS-C and/or severe COVID-19 exhibited elevated autoreactive antibody responses against thyroperoxidase, IL-13, and IFN-epsilon, although differences across clinical groups did not reach statistical significance. When we compared subjects with MIS-C to those with severe COVID-19, we noted differences in the abundance of IgG (primarily IgG1), but no differences in Fc-mediated effector functions. Our study shows that the antibody repertoire in children varies with the clinical presentation of SARS-CoV-2. Moreover, MIS-C may be linked to abnormal antibody function, indicating that this syndrome-and potentially other post-acute sequelae of SARS-CoV-2 infection-could be related to antibody dysfunction.

Humans

Elevated salivary and synovial fluid beta2-microglobulin in Sjogren's syndrome and rheumatoid arthritis.

Beta2-Microglobulin is normally present in low concentrations in serum and other bodily fluids. By use of a radioimmunoassay, elevated concentrations of beta2--microglobulin were found in saliva and synovial fluid from patients with Sjogren's syndrome and rheumatoid arthritis, autoimmune inflammatory diseases that attack and destroy the salivary glands and articular tissues, respectively. Elevated beta2-microglobulin concentrations decreased in the saliva of two patients who simultaneously showed a clinical response to systemic treatment. Measurement of beta2-microglobulin in inflammatory fluids may offer a simple method of quantifying local activity in autoimmune states.

Arthritis, Rheumatoid

Immunodeficiency, autoimmunity, and increased risk of B cell malignancy in humans with TRAF3 mutations.

Tumor necrosis factor receptor-associated factor 3 (TRAF3) is a central regulator of immunity. TRAF3 is often somatically mutated in B cell malignancies, but its role in human immunity is not defined. Here, in five unrelated families, we describe an immune dysregulation syndrome of recurrent bacterial infections, autoimmunity, systemic inflammation, B cell lymphoproliferation, and hypergammaglobulinemia. Affected individuals each had monoallelic mutations in TRAF3 that reduced TRAF3 expression. Immunophenotyping showed that patients' B cells were dysregulated, exhibiting increased nuclear factor-&#x3ba;B 2 activation, elevated mitochondrial respiration, and heightened inflammatory responses. Patients had mild CD4+ T cell lymphopenia, with a reduced proportion of na&#xef;ve T cells but increased regulatory T cells and circulating T follicular helper cells. Guided by this clinical phenotype, targeted analyses demonstrated that common genetic variants, which also reduce TRAF3 expression, are associated with an increased risk of B cell malignancies, systemic lupus erythematosus, higher immunoglobulin levels, and bacterial infections in the wider population. Reduced TRAF3 conveys disease risks by driving B cell hyperactivity via intrinsic activation of multiple intracellular proinflammatory pathways and increased mitochondrial respiration, with a likely contribution from dysregulated T cell help. Thus, we define monogenic TRAF3 haploinsufficiency syndrome and demonstrate how common TRAF3 variants affect a range of human diseases.

Autoimmunity

Fasudil induces anti-inflammatory transcriptomic changes and increased proliferation in human trisomy 21 neural progenitor cells.

Down syndrome (DS) results from trisomy for human chromosome 21 and is the most frequent genetic cause of intellectual disability. No effective treatments currently exist that improve neurodevelopment and cognition. Atypical brain development in individuals with DS is apparent before birth, which suggests that the optimal time to begin administration of therapies is prenatally. Human neural progenitor cell (NPC) cultures provide a tractable in vitro model system to examine the effects of trisomy 21 (T21) on neurodevelopment and to measure the effects of pharmacological interventions. Here, we report the results of preclinical studies evaluating 24 candidate therapies. RNA sequencing analyses found that euploid and T21 NPCs showed different transcriptomic responses to five candidate pharmacotherapies. The Rho-associated coiled-coil kinase inhibitor fasudil increased proliferation of T21 NPCs, reduced expression of inflammatory pathway genes in T21 NPCs, and reduced markers of inflammation in LPS-stimulated microglial model systems. These results demonstrate that fasudil can alter multiple T21-associated abnormalities in a beneficial manner, suggesting that fasudil warrants further study as a candidate prenatal pharmacotherapy for DS.

Down Syndrome

AI-driven multi-omics modeling of myalgic encephalomyelitis/chronic fatigue syndrome.

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a chronic illness with a multifactorial etiology and heterogeneous symptomatology, posing major challenges for diagnosis and treatment. Here we present BioMapAI, a supervised deep neural network trained on a 4-year, longitudinal, multi-omics dataset from 249 participants, which integrates gut metagenomics, plasma metabolomics, immune cell profiling, blood laboratory data and detailed clinical symptoms. By simultaneously modeling these diverse data types to predict clinical severity, BioMapAI identifies disease- and symptom-specific biomarkers and classifies ME/CFS in both held-out and independent external cohorts. Using an explainable AI approach, we construct a unique connectivity map spanning the microbiome, immune system and plasma metabolome in health and ME/CFS adjusted for age, gender and additional clinical factors. This map uncovers altered associations between microbial metabolism (for example, short-chain fatty acids, branched-chain amino acids, tryptophan, benzoate), plasma lipids and bile acids, and heightened inflammatory responses in mucosal and inflammatory T cell subsets (MAIT, &#x3b3;&#x3b4;T) secreting IFN-&#x3b3; and GzA. Overall, BioMapAI provides unprecedented systems-level insights into ME/CFS, refining existing hypotheses and hypothesizing unique mechanisms-specifically, how multi-omics dynamics are associated to the disease's heterogeneous symptoms.

Humans

Retardation of colony growth of in vitro bone marrow culture using sera from patients with Felty's syndrome, disseminated lupus erythematosus (SLE), rheumatoid arthritis, and other disease states.

Whole sera and serum fractions from 24 patients with Felty's syndrome, 42 patients with systemic lupus erythematosus (SLE), and 48 patients with rheumatoid arthritis (RA), as well as 30 patients with miscellaneous acute and chronic disease states, were studied for their effect on numbers of mouse bone marrow colonies grown on soft agar in the presence of human colony stimulating factor. Significant early retardation of mouse bone marrow colony counts was recorded in 87.5 percent of Felty's sera, 43 percent of SLE sera, and 12.5 percent of sera from patients with uncomplicated RA. Forty percent of 30 other control patients with acute or chronic inflammatory diseases also showed this activity. No diminution was noted with any of 40 normal control sera. Degree of marrow colony retardation could be directly correlated to amounts of test serum added. No single serum fraction isolated by ion exchange chromatography, gel filtration, or electrophoresis was identified as solely responsible for marrow growth retardation; however lipoprotein fractions including chylomicrons, LDL and HDL showed inhibiting activity in various sera.

Animals

Direct immunofluorescence in the diagnosis of scleroderma syndromes.

Immunofluorescent study of the skin of nine patients with mesenchymal, inflammatory scleroderma (mixed connective tissue disease) revealed immunoglobulin and complement deposition at the basement membrane or within blood vessel walls. The skin specimens of ten patients with systemic scleroderma were negative for immunofluorescence. It is proposed that basement membrane or vascular (or both) immunofluorescence is an excellent means of identifying the infrequent patient who has scleroderma and myositis or lupus erythematosus in whom a corticosteroid response may occur.

Adolescent

Developing Highly Effective Nanoparticle mRNA Therapeutic for Pediatric Acute Respiratory Distress Syndrome.

Sepsis-induced pediatric acute lung injury (ALI) and pediatric acute respiratory distress syndrome (PARDS) are life-threatening conditions with high mortality rates and no current cure. Most ALI/ARDS studies focus on adults, albeit the pediatric population has unique challenges often underrepresented. ALI/PARDS severely impacts pulmonary endothelial cells (ECs), causing endothelial dysfunction and vascular leakage. FOXF1 is a transcription factor critical for lung repair after injury, representing a viable target for ALI/PARDS. This study developed and tested a novel nanoparticle system for precise delivery of FOXF1 mRNA into lung ECs to reduce endothelial damage and improve lung function in mouse model of PARDS. Systemic inflammatory response was induced in neonatal mice after intraperitoneal administration of lipopolysaccharide (LPS). Specifically designed nanoparticles (NP) were used to intravenously deliver stabilized FOXF1 mRNA (FOXF1 NP) after LPS injury to restore FOXF1 expression in injured lung endothelial cells. FOXF1 NP selectively targeted pulmonary ECs without affecting other cell types or organs. FOXF1 NP treatment reduced vascular leakage, enhanced endothelial barrier function, and improved survival of neonatal mice after injury. FOXF1 NP decreased EC apoptosis by restoring the expression of BCL2, an anti-apoptotic FOXF1 target gene. Nanoparticle-based rescue of lung ECs has promise for future treatments of human ALI/PARDS.

endothelial cells

Sex differences in cerebrospinal fluid proteomics of patients with restless legs syndrome.

STUDY OBJECTIVES: The pathobiology of restless legs syndrome (RLS) remains poorly understood, complicating effective treatment. This observational cross-sectional study aimed to identify a cerebrospinal fluid proteomic signature of RLS and to explore sex-specific differences in cerebrospinal fluid proteomics. METHODS: Cerebrospinal fluid samples were collected from 22 untreated RLS patients and 18 controls, matched for age, body mass index, and sex. Proteomic analysis was conducted using the SOMAscan platform, assessing over 7000 peptides. RESULTS: Eight proteins were differentially abundant between patients and controls, with CRP and JAML increased, and TAPBPL and IL1RL1 decreased. Pathway analysis highlighted significant involvement in immune response, coagulation, and cytoskeletal regulation. Analyses were then carried out using sex stratification, comparing men and women separately. Sex-specific analyses revealed more pronounced proteomic alterations in males (68 differentially abundant proteins vs. control males) than in females (17 proteins). Gene enrichment analysis revealed that men with RLS had more involvement in gene regulation and epigenetic factors than control males and women with restless legs syndrome had greater involvement in systemic inflammatory and vascular processes than control females. CONCLUSIONS: This study identified a cerebrospinal fluid proteomic signature in RLS, implicating immune and inflammatory pathways in the disease's pathophysiology. Significant sex differences in protein level suggest potential sex-specific mechanisms in RLS, warranting further investigation. These findings contribute to the current understanding of RLS and could inform future therapeutic strategies.

Humans

Spatially Distinct Bone Marrow Sites Are Asymmetrically Impacted by Inflammatory Cardiovascular Disease.

Cardiovascular disease, a leading cause of mortality globally, is increasingly recognized to involve complex bone marrow-driven inflammatory mechanisms, yet the impact on spatially distinct bone marrow sites and comorbidities remains poorly understood. To address this, we developed MarrowMet, a methodology for whole-body, site-specific quantification of bone marrow activity. The approach involves intravenously injecting the metabolic tracer 18F-fluorodeoxyglucose (18F-FDG) in mice, followed by bone excision to quantify site-specific bone marrow activity, with values then superimposed on a whole-body mouse atlas. After establishing that 18F-FDG bone marrow uptake strongly correlated with inflammatory activity, we applied MarrowMet to map site-specific activation patterns across diverse cardiovascular pathologies, including mouse models of inflammatory atherosclerosis, acute ischemic events, acute respiratory distress syndrome, metabolic syndrome, and aging. MarrowMet guided the selection of bone marrow regions of interest for in-depth mass cytometric analyses, with the skull and sternum emerging as critical sites exhibiting distinct immune and metabolic profiles in cardiovascular disease. These results challenge the prevailing view that femoral marrow represents systemic activity. Together, this work lays a foundation for whole-body exploration of bone marrow heterogeneity, yielding critical insights into cardiovascular disease and associated inflammatory responses, and MarrowMet can be readily adopted to profile other immune mechanisms in a variety of pathologies, including cancer and autoimmune diseases.

(18)F-FDG

Iron deficiency, infections, and immune function: a reassessment.

Many physicians believe that patients with iron deficiency have an increased susceptibility to infections. Data in the literature, however, are contradictory, and in many instances the reports are vulnerable to critical review. Literature available through 1976 was analyzed in an attempt to define possible relationships between infections, immune function, and states of iron imbalance, both iron deficiency and overload. Critical points that must be considered for an accurate interpretation were emphasized. It seems clear that the inflammatory response, when assessed by skin reactivity, is diminished in iron deficiency. The precise molecular defect remains undefined, but the abnormality is detected by several assays measuring cell-mediated immunity. Normal function is usually restored following iron repletion.

Anemia, Hypochromic

Integrated multi-omics analyses identify an RAS-SLC11A2-associated molecular framework linking iron metabolism with PCOS-related cardiometabolic risk.

INTRODUCTION: PCOS is a common endocrine disorder with elevated cardiometabolic risk, yet the role of the renin-angiotensin system (RAS)-iron metabolism axis in this comorbidity remains unclear. We explored its underlying mechanisms and evaluated the therapeutic potential of gentiopicroside. METHODS: Integrated multi-omics analyses combining transcriptomics, single-cell RNA sequencing, Mendelian randomization, machine learning, molecular docking, and in vitro functional assays were performed to identify shared molecular pathways and therapeutic targets across PCOS, hypertension, NAFLD, and T2DM. RESULTS: SLC11A2 was consistently dysregulated in PCOS transcriptomic datasets, and associated with iron metabolism, inflammatory response and oxidative stress pathways. Genetic analyses validated RAS-related regulation in hypertension susceptibility and revealed shared genetic architecture between PCOS and cardiometabolic traits. Network and single-cell analyses characterized SLC11A2-associated molecular patterns in disease-relevant cell types; machine learning identified disease-classifying molecular signatures. Gentiopicroside alleviated inflammatory and oxidative stress phenotypes, including reduced IL-6 expression and reactive oxygen species accumulation. CONCLUSION: This study defines an RAS-SLC11A2 molecular framework linking iron metabolism dysregulation to PCOS-related cardiometabolic risk, elucidating the mechanisms connecting ovarian dysfunction, inflammation, oxidative stress and hypertension, and supports gentiopicroside as a promising therapeutic candidate.

Humans

APOM-associated inflammation and apoptosis in stroke-exacerbated myocardial infarction: implications for brain-heart interactions.

Brain-heart syndrome (BHS) describes cardiac dysfunction secondary to central nervous system injury, with acute ischemic stroke (AIS) serving as a critical driver that exacerbates myocardial infarction (MI). This study aimed to elucidate the role of Apolipoprotein M (APOM) in stroke-aggravated MI and to explore its underlying systemic and molecular mechanisms. Clinical data were analyzed to evaluate the correlation between stroke and MI. A combined mouse model of middle cerebral artery occlusion (MCAO) and MI was established to assess neurological and cardiac injury. Quantitative proteomics and Weighted Gene Co-expression Network Analysis (WGCNA) were employed to screen key differentially expressed proteins. The role of APOM in myocardial injury was validated using APOM-knockout (KO) mice. Furthermore, nuclear-cytoplasmic fractionation, immunofluorescence, and Western blot were performed to investigate its effects on the Saa1 and NF-&#x3ba;B signaling, NLRP3-related inflammatory signaling pathway, and lipid metabolism pathways. Clinical analysis indicated that stroke is a significant risk factor for MI (OR&#x2009;=&#x2009;4.5). In the mouse model, MCAO significantly exacerbated post-MI electrocardiographic abnormalities, myocardial inflammatory response, while elevating circulating levels of cTnT and IL-1&#x3b2;. Proteomics identified a significant downregulation of APOM in the heart, brain, and serum post-stroke, a trend consistent with observations in AIS patients. Further experiments revealed that APOM deficiency markedly worsened cardiac conduction disturbances, histological damage, and inflammatory responses in MI mice. Mechanistically, the loss of APOM upregulates the acute-phase protein Saa1, triggers NF-&#x3ba;B phosphorylation and nuclear translocation, and enhances inflammatory signaling related to inflammasomes, while simultaneously mediating cytokine release from cardiomyocytes. Concurrently, APOM deficiency led to a significant decrease in sphingosine-1-phosphate (S1P) and also caused myocardial lipid droplet accumulation and metabolite changes. Additionally, the loss of APOM increased the expression of D-dimer and fibrinogen family proteins. Our findings suggest that APOM is a potential cardioprotective agent post-AIS. Downregulation of APOM may exacerbate myocardial injury after MI by elevating Saa1 expression, activating the NF-&#x3ba;B pathway and the inflammasome-mediated signaling, and inducing lipid metabolic disorders and coagulation-associated alterations. APOM may represent a potential therapeutic target for the intervention of brain-heart syndrome.

Animals

Osteoarthritis phenotypes: advancing precision medicine through clinical, structural, and molecular stratification.

PURPOSE: Osteoarthritis (OA) is now understood as a heterogeneous syndrome driven by diverse biological, biomechanical, metabolic, genetic, and molecular mechanisms. This variability explains differences in disease progression and treatment response, challenging the traditional "one-size-fits-all" approach. This review highlights OA phenotyping as a key step toward precision medicine, focusing on clinical, structural, and molecular classifications that inform individualized care. METHODS: A narrative review was conducted using a non-systematic search of major databases and Osteoarthritis Research Society International sources (2010-2026). Evidence was thematically synthesized across clinical, imaging, and molecular domains to characterize OA phenotypes and their potential relevance to precision medicine. RESULTS: Multiple OA phenotypes were identified: inflammatory, metabolic, biomechanical, cartilage-subchondral, pain-sensitization, and aging/senescence. These exhibit distinct clinical features, risk factors, and therapeutic responses. Imaging-based phenotypes (e.g., inflammatory, meniscus-cartilage, subchondral bone, atrophic, hypertrophic) and molecular endotypes (low turnover, structural damage, systemic inflammation) further refine stratification. Pain-structure discordance is notable in sensitization phenotypes and may predict poorer surgical outcomes. Joint-specific variations and emerging genomic and epigenetic insights underscore disease complexity. Advances in imaging, biomarkers, and machine learning may enable earlier detection and patient clustering, though clinical application remains limited. CONCLUSION: Phenotype- and endotype-based classification represents a critical advancement toward precision OA management. Tailored interventions based on stratification hold promise for improving outcomes; however, clinical translation remains limited by overlapping phenotypes, lack of validated biomarkers, and inconsistent results from phenotype-driven trials. Wider clinical adoption requires standardized definitions, validation across joints, and integration of multimodal diagnostic tools into routine practice.

Humans

Corticosteroids in ARDS: old controversies, new insights, and future directions.

Corticosteroids modulate key inflammatory and fibroproliferative pathways involved in ARDS through genomic and non-genomic glucocorticoid receptor signaling. Advances in ARDS pathophysiology have highlighted the importance of timing, inflammatory burden, and host response in determining treatment efficacy. Clinical evidence supports corticosteroid use in moderate-to-severe ARDS, particularly in COVID-19 ARDS and severe community-acquired pneumonia, with reductions in mortality and duration of mechanical ventilation. However, treatment effects remain heterogeneous across etiologies and biological subphenotypes. Recent identification of hyperinflammatory and hypoinflammatory ARDS phenotypes suggests that corticosteroid responsiveness is not uniform. Hyperinflammatory phenotypes and septic ARDS appear more likely to benefit, whereas evidence remains limited or conflicting in influenza-associated and non-septic ARDS. Long-term effects and adverse outcomes, including metabolic complications and ICU-acquired weakness, remain insufficiently characterized. Future research is increasingly focused on precision medicine approaches integrating biomarkers, adaptive platform trials, and phenotype-guided strategies. Emerging developments include lung-targeted corticosteroid delivery systems and selective glucocorticoid receptor modulators designed to improve efficacy while reducing systemic toxicity. Corticosteroids should therefore be considered a context-dependent therapy whose benefit is influenced by etiology, disease stage, inflammatory phenotype, and timing of administration.

Humans

Food-derived extracellular vesicles as delivery platforms for medicine-food homology components in metabolic syndrome.

Diet-induced obesity and associated metabolic syndromes have become major global public health challenge, highlighting the urgent need for safe and effective strategies. Recently, food-derived extracellular vesicles (FDEVs) have garnered increasing attention as natural nanocarriers due to their excellent biocompatibility and specific targeted delivery capabilities. FDEVs can efficiently deliver medicine-food homology components (MFHCs) to precisely regulate lipid metabolism, inflammatory responses, and insulin sensitivity, thereby improving obesity and its metabolic abnormalities. This systematic review summarizes recent advances in the use of FDEVs as delivery vehicles for MFHCs to suppress diet-induced obesity and metabolic syndrome, with a particular focus on the underlying molecular mechanisms, including signaling pathway regulation and cellular metabolic remodeling. In addition, the clinical translational potential and industrial application prospects of FDEVs are evaluated, and key challenges related to preparation techniques, safety assessment, and large-scale production are discussed. By integrating current evidence, this review aims to provide theoretical framework and future perspectives for the development of FDEVs as a novel targeted delivery platform and treatment of metabolic diseases.

Extracellular Vesicles

Combination of theophylline and prostaglandin E1 as inhibitors of the adjuvant-induced arthritis syndrome of rats.

The effects of daily subcutaneous administration of prostaglandin E1 (PGE1), theophylline, and of both drugs together were studied on the Freund's adjuvant-induced inflammatory and arthritic syndrome in rats. In the doses used, neither drug affected the acute inflammatory response in the adjuvant-treated paw, but together they caused marked inhibition. Chronic inflammation in the contralateral (nontreated) hind paws was slightly inhibited by each drug and combined treatment resulted in marked inhibition. The drugs also counteracted splenomegaly in adjuvant-diseased rats and their effects on spleen weight paralleled the inhibition of chronic inflammation. Arthritic lesions, as judged by x-rays of tibiotarsal joint destruction in the nontreated paws, were partially prevented by PGE1 alone, but not by theophylline. The combined treatment entirely prevented these joint lesions. PGE1 did not cause an increase in adrenal weight, but enhanced the effect of theophylline on adrenal weight. Only PGE1 improved gait in arthritic rats, simultaneous theophylline treatement having little additional effect. Other workers have found the PGE1 increases intracellular cAMP and that this effect is enhanced by the phosphodiesterase inhibitor, theophylline. We propose that the anti-inflammatory and anti-arthritic effects of combined drug treatment involve cAMP changes in phagocytic cells at the site of tissue injury and in systemic lymphocytes.

Animals