Guest guest Posted February 25, 2002 Report Share Posted February 25, 2002 Headache 2001 Sep;41(8):764-7 Related Articles, Books, LinkOut Immunological aspects in migraine: increase of IL-10 plasma levels during attack. Munno I, Marinaro M, Bassi A, Cassiano MA, Causarano V, Centonze V. Department of Internal Medicine, Immunology, and Infectious Disease, University of Bari, Italy. In the present study, 23 patients with migraine without aura were monitored during a migraine attack. Plasma levels of interleukin (IL)-4, IL-5, IL-10, and interferon-gamma were measured by enzyme-linked immunosorbent assay techniques. Interestingly, we observed low to undetectable IL-5 and IL-4 levels, whereas high IL-10 levels were seen in 52.2% of the patients. Interferon-gamma plasma levels were undetectable in all patients. After treatment with sumatriptan, 10 patients showed a subsequent decrease in IL-10 and an increase in both IL-4 and IL-5 plasma levels. Although these findings are derived from a limited number of patients, the apparent return to the IL-4 and IL-5 cytokine profile observed during the interictal period leads us to speculate that a preferential enhancement of TH2-type cytokine production may contribute to the pathogenesis of migraine. PMID: 11576199 [PubMed - indexed for MEDLINE] Brain 2001 Dec;124(Pt 12):2490-502 Related Articles, Books, LinkOut Delayed inflammation in rat meninges: implications for migraine pathophysiology. Reuter U, Bolay H, Jansen-Olesen I, Chiarugi A, del Rio M, Letourneau R, Theoharides TC, Waeber C, Moskowitz MA. Stroke and Neurovascular Regulation Laboratory, Massachusetts General Hospital, Harvard Medical School, town, Massachusetts 02129, USA. Nitric oxide (NO) has been implicated in migraine pathogenesis based on the delayed development of typical migraine headache 4-6 h after infusing the NO donor nitroglycerin [glyceryl trinitrate (GTN)] to migraineurs. Furthermore, inhibiting the synthesis of NO by treatment with a NO synthase (NOS) inhibitor attenuates spontaneous migraine headaches in 67% of subjects. Because NO has been linked to inflammation and cytokine expression, we investigated the delayed consequences of brief GTN infusion (30 min) on the development of meningeal inflammation in a rat model using doses relevant to the human model. We found dose-dependent Type II NOS [inducible NOS (iNOS)] mRNA upregulation in dura mater beginning at 2 h and an increase in the corresponding protein expression at 4, 6 and 10 h after infusion. Type II NOS immunoreactivity was expressed chiefly within resident meningeal macrophages. Consistent with development of a delayed inflammatory response, we detected induction of interleukin 1beta in dura mater at 2 and 6 h and increased interleukin 6 in dural macrophages and in rat cerebrospinal fluid at 6 h after GTN infusion. Myeloperoxidase-positive cells were rarely found. Leakage of plasma proteins from dural blood vessels was first detected 4 h after GTN infusion, and this was suppressed by administering a specific Type II NOS inhibitor [L-N(6)-(1-iminoethyl)-lysine (L-NIL)]. In addition to cytokine induction, macrophage iNOS upregulation and oedema formation after GTN infusion, dural mast cells exhibited granular changes consistent with secretion at 4 and 6 h. Because iNOS was expressed in dural macrophages following topical GTN, and in the spleen after intravenous injection, the data suggest that the inflammatory response is mediated by direct actions on the dura and does not develop secondary to events within the brain. Our findings point to the importance of new gene expression and cytokine expression as fundamental to the delayed response following GTN infusion, and support the hypothesis that a similar response develops in human meninges after GTN challenge. PMID: 11701602 [PubMed - indexed for MEDLINE] J Rheumatol 2002 Feb;29(2):358-61 Related Articles, Books, LinkOut Cytokines and depression in cases with fibromyalgia. Gur A, Karakoc M, Nas K, Remzi, Cevik, Denli A, Sarac J. Department of Physical Medicine and Rehabilitation, School of Medicine, Dicle University, Diyarbakir, Turkey. alig@... OBJECTIVE: Fibromyalgia (FM) is a chronic, painful musculoskeletal disorder characterized by widespread pain, pressure, hyperalgesia, morning stiffness, and an increased incidence of depressive symptoms. The etiology, however, has remained elusive. The aim of the present study was to examine the inflammatory response system in FM and to investigate the effect of depression level on serum cytokines. METHODS: Serum interleukin-1 (IL-I), IL-2 receptor (IL-2r), IL-6, and IL-8 and the Hamilton Depression Rating Scale (HDRS) score were determined in 32 healthy volunteers and in 81 patients with FM, classified according to the American College of Rheumatology criteria. RESULTS: In our study, serum IL-1 and IL-6 were not statistically significant, but serum IL-8, IL2r, and HDRS score were significantly higher in patients with FM than the control group (p < 0.01). In addition, in patients with FM, IL-8 was found to be related to pain intensity (r = 0.35; p < 0.01). CONCLUSION: IL-8 may play an important role in the occurrence of pain in FM. PMID: 11838856 [PubMed - in process] Rheumatology (Oxford) 2001 Jul;40(7):806-10 Related Articles, Books, LinkOut Autoantibodies to a 68/48 kDa protein in chronic fatigue syndrome and primary fibromyalgia: a possible marker for hypersomnia and cognitive disorders. Nishikai M, Tomomatsu S, Hankins RW, Takagi S, Miyachi K, Kosaka S, Akiya K. National Tokyo Medical Center, Tokyo, Japan. OBJECTIVE: To identify antinuclear antibodies (ANA) specific for chronic fatigue syndrome (CFS), and in related conditions such as fibromyalgia (FM) or psychiatric disorders. METHODS: One hundred and fourteen CFS patients and 125 primary and secondary FM patients were selected based on criteria advocated by the Centers for Disease Control and Prevention and by the American College of Rheumatology, respectively. As controls, healthy subjects and patients with either various psychiatric disorders or diffuse connective tissue diseases were included. Autoantibodies were examined by immunoblot utilizing HeLa cell extracts as the antigen. RESULTS: Autoantibodies to a 68/48 kDa protein were present in 13.2 and 15.6% of patients with CFS and primary FM, respectively. In addition, autoantibodies to a 45 kDa protein were found in 37.1 and 21.6% of the patients with secondary FM and psychiatric disorders, respectively. Meanwhile, these two autoantibodies were not found at all in connective tissue disease patients without FM, nor in healthy subjects (P<0.05). As a group, the anti-68/48 kDa-positive CFS patients presented more frequently with hypersomnia (P<0.005), short-term amnesia (P<0.07) or difficulty in concentration (P<0.05) than those CFS patients without the antibodies. CONCLUSIONS: The presence of the anti-68/48 kDa protein antibodies in a portion of both CFS and primary FM patients suggests the existence of a common immunological background. These antibodies may find utility as possible markers for a clinicoserological subset of CFS/FM patients with hypersomnia and cognitive complaints. PMID: 11477286 [PubMed - indexed for MEDLINE] Rheumatology (Oxford) 2001 Jul;40(7):743-9 Related Articles, Books, LinkOut Cytokines play an aetiopathogenetic role in fibromyalgia: a hypothesis and pilot study. Wallace DJ, Linker-Israeli M, Hallegua D, Silverman S, Silver D, Weisman MH. Department of Medicine/Division of Rheumatology, Cedars-Sinai Medical Center/UCLA School of Medicine, Los Angeles, CA, USA. OBJECTIVE: To measure soluble factors having a possible role in fibromyalgia (FM) and compare the profiles of patients with recent onset of the syndrome with patients with chronic FM. METHODS: The production of cytokines, cytokine-related molecules, and a CXC chemokine, interleukin (IL)-8, was examined. Fifty-six patients with FM (23 with <2 yr and 33 with >2 yr of symptoms) were compared with age- and sex-matched healthy controls. Cytokines and cytokine-related molecules were measured in sera and in supernatants of peripheral blood mononuclear cells (PBMC) that were incubated with and without lectins and phorbol myristate acetate (PMA). RESULTS: No differences between FMS and controls were found by measuring IL-1beta, IL-2, IL-10, serum IL-2 receptor (sIL-2R), interferon gamma (IFN-gamma), and tumour necrosis factor alpha (TNF-alpha). Levels of IL-1R antibody (IL-1Ra) and IL-8 were significantly higher in sera, and IL-1Ra and IL-6 were significantly higher in stimulated and unstimulated FM PBMC compared with controls. Serum IL-6 levels were comparable to those in controls, but were elevated in supernatants of in vitro-activated PBMC derived from patients with >2 yr of symptoms. In the presence of PMA, there were additional increases in IL-1Ra, IL-8 and IL-6 over control values. CONCLUSIONS: In patients with FM we found increases over time in serum levels and/or PBMC-stimulated activity of soluble factors whose release is stimulated by substance P. Because IL-8 promotes sympathetic pain and IL-6 induces hyperalgesia, fatigue and depression, it is hypothesized that they may play a role in modulating FM symptoms. PMID: 11477278 [PubMed - indexed for MEDLINE] J Rheumatol 2001 Mar;28(3):601-3 Related Articles, Books, LinkOut Comparison of viral antibodies in 2 groups of patients with fibromyalgia. Wittrup IH, Jensen B, Bliddal H, Danneskiold-Samsoe B, Wiik A. Research Institute, Department of Rheumatology, Frederiksberg University Hospital, Copenhagen, Denmark. OBJECTIVE: The etiologies of fibromyalgia (FM) are unknown. In some cases an acute onset following a flu-like episode is described; in other cases patients report slowly developing disease. We previously found increased prevalence of enterovirus IgM antibodies in patients with acute onset of FM compared to healthy controls. We looked for differences in antimicrobial IgM antibodies in acute versus nonacute onset FM. METHODS: Two well defined, comparable groups of patients with FM (acute 19, nonacute 20) were studied for antibodies in serum to an array of viruses including IgM antibodies. RESULTS: In most viruses no IgM antibodies were found. However, about 50% of the patients with acute FM onset had IgM antibodies against enterovirus compared to only 15% of the slow onset patients. CONCLUSION: The higher prevalence of IgM antibodies against enterovirus in patients with acute onset of FM may indicate a difference in the etiology or the immune response in these patients. PMID: 11296966 [PubMed - indexed for MEDLINE] Anti-nuclear envelope antibodies: Clinical associations. Journal: Semin Arthritis Rheum 2001 Apr;30(5):313-320 Authors: Nesher G, Margalit R, Ashkenazi YJ. Affiliations: Department of Rheumatology Service, Hebrew University Medical School, Jerusalem, and the Departments of Internal Medicine and Hematology, Shaare-Zedek Medical Center, Jerusalem., Gideon Nesher, MD: Adjunct Associate Professor, St. Louis University School of Medicine, Senior Lecturer, The Hebrew University Medical School, and Director of Rheumatology Service, Shaare-Zedek Medical Center, Jerusalem, Israel; Ruth Margalit, MD: Former Resident, Department of Internal Medicine, Shaare-Zedek Medical Center, Jerusalem, Israel; Yaacov J. Ashkenazi, MD: Director of Internal Medicine-Hematology Day-Care Center, Shaare-Zedek Medical Center, Jerusalem, Israel. NLM Citation: PMID: 11303304 Summary: OBJECTIVES: Characterization of the clinical associations and clinical implications of antibodies reacting with antigens of the nuclear envelope. METHODS: Description of an illustrative case and a MEDLINE search-assisted literature review of relevant cases. RESULTS: With indirect immunofluorescence, autoantibodies directed against various antigens of the nuclear envelope stain the nucleus in a ring-like (rim) pattern. Autoantibodies against 5 antigenic components of the nuclear envelope have been described: anti-gp210, p62, lamina, lamina-associated polypeptides, and lamin B receptor. Antibodies to antigens of the nuclear pore complex, such as gp210 and p62, are highly specific (>95%) for primary biliary cirrhosis and may aid in the serologic diagnosis of this condition, especially in cases in which antimitochondrial antibodies are not detectable. In contrast, antilamin antibodies are not disease-specific but seem to be associated with lupus anticoagulant or anticardiolipin antibodies, antiphospholipid syndrome, thrombocytopenia, autoimmune liver diseases, and arthralgia. High-titered antilamin antibodies help to define a subset of lupus patients with antiphospholipid antibodies who are at a lower risk of developing thrombotic events. In addition, preliminary data suggest that the presence of antilamin antibodies may be helpful in the diagnosis of chronic fatigue syndrome. CONCLUSIONS: Each of the antibodies reacting with nuclear membrane antigens has its own spectrum of disease associations. RELEVANCE: Determination of anti-nuclear envelope antibody pattern by indirect immunofluorescence, with subsequent determination of the specific antibody, carries important diagnostic and prognostic implications in various autoimmune conditions. © Copyright 2001 by W.B. Saunders Company ----------------------------------------------------------------- Below is info from a Dec. conference that I thought some of you might be interested in. Notice how more are making the connection between our children and what is happening to alot of us adults. The Third International Clinical and Scientific Meeting Sydney Conference 2001 Kenny de Meirleir (Brussels, Belgium) gave an overview of the possible immunological pathways that are disrupted in illnesses such as CFS. He presented data suggesting improper activation of 2-5OAS in monocytes in both CFS and chronic MS. (not however in relapsing/remitting MS) This results in inappropriate activation of RNaseL This process ultimately leads to blockade of RNaseL-mediated apoptosis. A complex series of biochemical/immunological events then follows. Resultant RNA fragments are then capable of either activating or down regulating PKR. A subsequent release of NO at high (CFS) rates or low (MS) rates by lymphocytes leads to effects on ion channel, NK cell function, COX2 activation and glutamine release by activated T cells in the brain. The Belgian results suggest that CFS and chronic MS are extremes of an array of dysfunctions in the 2-5A/RNaseL/PKR pathways. Evidence of active HHV6 infection and its correlation with RNaseL (LMW) protein in CFS patients was presented by Dharam Ablashi (Washington, USA). His team had looked at HHV6 in plasma, CSF and white blood cells. The aim was to correlate HHV6 with presence of the 37KDa protein. The 35 CFS patients studied showed that 65% had active HHV6 infection with varying HHV6 IgM antibody and HHV6 infected PBMCs. In the CSF, 26.7% had HHV6 DNA. Nested PCR showed 34% patients had HHV6 in plasma, but using TaqMan PCR, 48.5% were shown positive in plasma, and 40% in CSF. This test was therefore more sensitive in this assay. HHV6 variant A was identified by TaqMan PCR in almost all positive patients. Variant A tends to be acquired in adult life, variant B in early childhood. Ratio of LMW to HMW(80KDa) protein was detected in 70% PMBC samples. Correlation with HHV6 was significant when the ratio was greater than 4. IgM antibody and PCR correlation was less significant. Rey Casse (Adelaide SA) used SPECTscans to study regional cerebral blood flow in CFS. He recommended that a triple headed camera be used for accuracy and reliability. 13 CFS patients' scans were compared with 11 people suffering from other conditions with normal scans. Visually, deficit in regional cerebral blood flow was found in the temporal areas in 7 patients, and equivocal in 3. Statistical Parametric Mapping was applied to show location and amplitude of significant focal deficits. Most deficits were found in the brainstem, temporal lobes, frontal lobe and anterior cingulate gyrus. Autism and CFS were considered by Robyn Cosford (Mona Vale NSW) to be part of the same spectrum of disease, which also included ADHD, in light of her findings of similar neuro-immune and gastro-intestinal dysfunction. Similar trends in urinary amino-acid and organic acid output are typically seen in all these disorders. There are also some similarities in plasma lipid analysis and bacterial faecal studies. She found the children with autism are a more metabolically homogenous group than CFS patients, who typically fall into 5 symptom clusters correlating to metabolic findings. However the subgroup of CFS patients with neuro-cognitive and GI symptoms has similar patterns to autistics, and this could indicate commonality in aetiology. She mentioned the fact that many children with autism have had frequent infections, particularly otitis media prior to diagnosis. Biochemical anomalies in those with CFS who have visual problems were discussed by Gregg (Newcastle NSW). It has been found that these patients do have biochemical abnormalities similar to those reported as suffering from a visual sub-type of dyslexia, known as Irlen Syndrome (IS). The same visual symptoms occur in both conditions: headaches, photophobia and concentration difficulties. A large percentage have visual processing problems, and there may be a genetic vulnerability. A number of abnormalities of fatty acid metabolism were described. The bacterial fatty acid C17:0 was found to be positively correlated with eye strain and may indicate the presence of a pathogen, and this anomaly was also found in those with CFS. Neil McGregor (Newcastle NSW) retrospectively reviewed available data to develop a model of disease processes in CFS. Using factor analysis, 4 symptom groups are recognised in CFS: General CFS, neurocognitive, musculo-skeletal and mood changes. The general symptoms are associated with reactivation of viruses, increased RNaseL fragmentation and infectious symptoms. This group are predominantly cytokine-inducing or pathogen associated events. The other groups represent the host's response or cytokine-mediated symptoms. Reactivation of different viruses is associated with symptom variation, while co-morbid infections increase patient morbidity. Pain is associated with increased metabolite excretion and cytokine mediation leads to release of metabolites from the tissues. As amino acids are lost, fatty acids increase and the patient becomes more reactive. That food intolerance exists as a co-morbidity in CFS was addressed by Tania Emms (Newcastle NSW). Food intolerances are a non-immune mechanism with no increase in IgE. Food intolerance appears to be a significant factor in up to 30% CFS patients. A chemical to which an individual is intolerant needs to accumulate and reach a threshold before symptoms develop, so reactions maybe delayed over hours or days, and many symptoms may occur. Patients were studied using food elimination and food challenge. 90% reported positive outcome after elimination, with improvement in a number of symptoms. Bowel symptoms in particular decreased. Food intolerance therefore may be of aetiological significance in the development of IBS symptoms in CFS. She concluded that symptom management involving attention to food intolerances is under-utilised but maybe a useful approach. Burnet's final words echoed the consensus of the conference that the brain, limbic systems and gut are implicated in CFS with the causation being usually infection plus a predisposition and various trigger factors _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com Quote Link to comment Share on other sites More sharing options...
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