Showing posts with label Inflammatory bias. Show all posts
Showing posts with label Inflammatory bias. Show all posts
Saturday, June 12, 2010
Sleep Apnea: An immune disorder
The conventional wisdom is that sleep apnea (SA), a condition that more than 5% of the American population and is associated with markedly increased risk of heart attacks and strokes, is a mechanical disease. Those with it are frequently overweight with short and thick necks. However, there is increasing evidence that SA is another immune disorder associated with inflammation.
Inflammation and sleep apnea
I strongly believe that PURSOR would remit SA. Do look at this review: serotonin rx of same
Labels:
immunology,
inflammation,
Inflammatory bias,
risk factors,
sleep apnea,
th1,
th2,
therapy,
treatment
Monday, February 22, 2010
Neuroinflammation and Neurodegenerative Diseases: One Condition One Therapy
Does neuroinflammation fan the flame in neurodegenerative diseases?:
Microglial activation is the response to multiple traumatic insults whether triggered by infection, trauma or hypoxia. This common stress response can become self-feeding and can become chronic. The authors postulate that the particular presentation (PD, ALS, Huntingtons, etc) depends on genetic variation of environmental variability.
I believe and have so believed for more than a decade that all these conditions can be remitted by blocking the perpetuation of microglial activation by the use of dopamine and seotonin precursor therapy (PURSOR).
Microglial activation is the response to multiple traumatic insults whether triggered by infection, trauma or hypoxia. This common stress response can become self-feeding and can become chronic. The authors postulate that the particular presentation (PD, ALS, Huntingtons, etc) depends on genetic variation of environmental variability.
I believe and have so believed for more than a decade that all these conditions can be remitted by blocking the perpetuation of microglial activation by the use of dopamine and seotonin precursor therapy (PURSOR).
It is becoming increasingly evident that neuroinflammation plays a crucial role in the development and progression of many neurodegenerative diseases. Glia and in particular microglia are central to mediating the effects of neuroinflammation. While neuroinflammation and microglia provide an attractive therapeutic target in the treatment and prevention of neurodegenerative diseases investigators face several challenges ahead (Appendix 2) which must be overcome before one can advocate in favor of large-scale anti-inflammatory trials in the clinic. Some of these include developing approaches to improve the access of drugs to CNS tissue as well as developing therapies that maintain or optimize the beneficial effects of neuroinflammation while eliminating or minimizing its detrimental effects.
Key Observations1. Neurodegenerative diseases are associated with signs of chronic neuroinflammation
2. A variety of initiating triggers (some as yet unknown) associated with the different neurodegenerative disorders converge at a common intersection point - activation of microglia.
3. While the initial neuroimmune response may be aimed at limiting the disease process, chronic neuroinflammation driven by persistent microglia activation is likely to aid in the progression of the disease and the hastening of neuronal demise.
4. How the inflammatory response affects specific neuronal and glial populations and contributes to specific neurodegenerative diseases remains a critical and unanswered question
Critical challenges involved in developing neuroprotective anti-inflammatory therapeutic strategies1. Identify internal and external factors that trigger chronic neuroinflammatory responses, with a focus on how acute immune responses become chronic.
2. Identify inflammatory mediators that compromise survival of specific neuronal populations.
3. Develop therapeutic compounds that cross the blood brain barrier (BBB)
4. Selectively target destructive inflammatory mediators without compromising beneficial survival-promoting effects and overall immune function.
5. Develop inclusion and exclusion criteria for human subjects to be enrolled in clinical trials taking into account their immune status."
Wednesday, November 25, 2009
Does neuroinflammation fan the flame in neurodegenerative diseases and autism?
The following quotation comes from a review article that is being published this month.
Researchers are becoming aware that autism is another neuroinflammatory condition that can be triggered in animal experiments. Terbutaline, a bronchodilator also used to arrest preterm labor, has been associated with the development of human autism. In animal experiments, terbutaline given early, also induce a condition that appears to be like autism. Neuroinflammation, mostly associated with innate immunity, characterized by activation of microglia and astroglia, as well as increased cytokines and chemokines, has recently been documented in post mortem studies of autism brains and in the animal damaged by neuroinflammation.(REF/FULL TEXT)"While peripheral immune access to the central nervous system (CNS) is restricted and tightly controlled, the CNS is capable of dynamic immune and inflammatory responses to a variety of insults. Infections, trauma, stroke, toxins and other stimuli are capable of producing an immediate and short lived activation of the innate immune system within the CNS. This acute neuroinflammatory response includes activation of the resident immune cells (microglia) resulting in ... the release of inflammatory mediators such as cytokines and chemokines. Chronic neuroinflammation is a long-standing and often self-perpetuating response that persists long after an initial injury or insult. ... The sustained release of inflammatory mediators works to perpetuate the inflammatory cycle, activating additional microglia, promoting their proliferation, and resulting in further release of inflammatory factors.
Neurodegenerative CNS disorders discussed are multiple sclerosis (MS), Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), and amyotrophic lateral sclerosis (ALS)."(REF/ FULL TEXT)
Another 2009 article that reinforces the suggestion that autism and neurodegenerative diseases are central nervous system autoimmune diseases skewed towards a proinflammatory bias :
Finally, Paul Ashwood writes this. I would highly recommend you read the full text of his article:This study determined immune activities in the brain of ASD patients and matched normal subjects by examining cytokines in the brain tissue. Our results showed that proinflammatory cytokines (TNF-alpha, IL-6 and GM-CSF), Th1 cytokine (IFN-gamma) and chemokine (IL-8) were significantly increased in the brains of ASD patients compared with the controls. However the Th2 cytokines (IL-4, IL-5 and IL-10) showed no significant difference. The Th1/Th2 ratio was also significantly increased in ASD patients. Conclusion: ASD patients displayed an increased innate and adaptive immune response through the Th1 pathway, suggesting that localized brain inflammation and autoimmune disorder may be involved in the pathogenesis of ASD.
Autism spectrum disorders (ASD) are part of a broad spectrum of neurodevelopmental disorders known as pervasive developmental disorders, which occur in childhood. They are characterized by impairments in social interaction, verbal and nonverbal communication and the presence of restricted and repetitive stereotyped behaviors. At the present time, the etiology of ASD is largely unknown, but genetic, environmental, immunological, and neurological factors are thought to play a role in the development of ASD. Recently, increasing research has focused on the connections between the immune system and the nervous system, including its possible role in the development of ASD. These neuroimmune interactions begin early during embryogenesis and persist throughout an individual's lifetime, with successful neurodevelopment contingent upon a normal balanced immune response. Immune aberrations consistent with a dysregulated immune response, which so far, have been reported in autistic children, include abnormal or skewed T helper cell type 1 (T(H)1)/T(H)2 cytokine profiles, decreased lymphocyte numbers, decreased T cell mitogen response, and the imbalance of serum immunoglobulin levels. In addition, autism has been linked with autoimmunity and an association with immune-based genes including human leukocyte antigen (HLA)-DRB1 and complement C4 alleles described. There is potential that such aberrant immune activity during vulnerable and critical periods of neurodevelopment could participate in the generation of neurological dysfunction characteristic of ASD.
Damage or Disruption?
The PURSOR protocol has been extremely effective in ALS. It may be that irreversible changes occur in the child with autism. However, if the changes are not permanent, neuroinflammation and the autistic behavioral abnormalities may very well be remitted with PURSOR.
Friday, November 20, 2009
Lyme Arthritis: Current Concepts and a Change in Paradigm
The ability of B. burgdorferi, the spirochete responsible for Lyme Arthritis, to avoid clearance by the immune system may be attributed in part to an inadequate innate immune response upon infection. However, innate cells such as monocytes, macrophages, and dendritic cells display a vigorous response against borrelial infection and play a major role in the activation of the adaptive immune response against the spirochete. Despite these efforts, though, arthritis still develops in a significant number of patients infected with B. burgdorferi. It appears that the robust response elicited by monocytes, macrophages, and dendritic cells against the spirochete may be viewed as insufficient in early infection but excessive in the later stages. Paradoxically, in mounting such a strong defense against the organism, these cells may inadvertently be contributing to the induction of Lyme arthritis.
Lyme disease is associated with a chronic inflammatory bias with excessive T helper 1 cytokines. This condition has responded to PURSOR therapy in a Rhode Island lady who had not responded to antibiotic treatment at Yale under the care of my medical school classmate Allen Steere who has deservedly earned a reputation in this field.
Lyme Arthritis: Current Concepts and a Change in Paradigm
Lyme disease is associated with a chronic inflammatory bias with excessive T helper 1 cytokines. This condition has responded to PURSOR therapy in a Rhode Island lady who had not responded to antibiotic treatment at Yale under the care of my medical school classmate Allen Steere who has deservedly earned a reputation in this field.
Lyme Arthritis: Current Concepts and a Change in Paradigm
Labels:
arthritis,
immunology,
Inflammatory bias,
Lyme disease,
review,
Syphilis,
T helper cells,
th1,
treatment,
vaccination
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