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Nathan Goodyear

Adapted ECHO-7 virus Rigvir immunotherapy (oncolytic virotherapy) prolongs survival in ... - 0 views

www.ncbi.nlm.nih.gov/...PMC4560272

RIGVIR cancer oncolytic therapy immunotherapy cancer immunotherapy

shared by Nathan Goodyear on 16 Oct 18 - No Cached
  • Rigvir is a 2 ml frozen solution
  • ECHO-7 virus strain, Picornaviridae family, Enterovirus genus, Enteric Cytopathic Human Orphan (ECHO) type 7, group IV, positive-sense single-stranded RNA virus
  • a few side effects were reported, for example subfebrile temperature (37.5°C for a couple of days), pain in the tumour area, sleepiness and diarrhoea
  • ...12 more annotations...
  • In this retrospective study, however, there was no record of any untoward side effect from Rigvir treatment or its discontinuation
  • Early observations of tumour regressions after virus infections have been published starting from the late 19th century
  • The present results show that in substage IB, IIA, IIB and IIC melanoma patients, Rigvir administration after surgery significantly (P<0.05) prolongs survival compared with patients who were managed according to current published guidelines
  • no value higher than grade 2 was recorded in Rigvir-treated patients. This is in contrast to most other cancer therapies, where grades 3 and 4 are frequently observed
  • Administration of virus induces the formation of neutralising antibodies that might potentially influence the efficiency of Rigvir
  • In 94 healthy adult participants tested, the titres were found to be low (1 : 20 to 1 : 62) 39,40. When tested in 155 adult cancer patients who had not been treated with Rigvir, neutralising antibodies against ECHO-7 were detected in ∼50% of the patients
  • the presence of ECHO-7 antibodies was shown to increase with age in children and level off to a plateau of around 75% in adults
  • Rigvir is an immunomodulator that affects both the humoral, antibody-mediated, and the cellular immune systems
  • neutralising antibodies do not affect efficacy when local or regional administration is used
  • it reduces the viability of melanoma, as well as pulmonary, gastric, pancreatic, bone, and breast cancer cell cultures
  • It is oncolytic in melanoma and rectum cancer patients
  • shown to improve the 5-year survival in rectum cancer patients
  • Nathan Goodyear on 16 Oct 18
     
    RIGVIR shown to improve survival against standard therapy in stage IB, IIA, IIB, and IIC in malignant melanoma patients in retrospective study. Side effects are minimal. Neutralizing antibodies are an area to watch that likely effects individual outcome beyond that of the type of cancer
pharmacybiz

Avacta Halts Sale Of Covid-19 Rapid Antigen LFT - 0 views

www.pharmacy.biz/t-to-boost-omicron-sensitivity

Avacta pharmacy-business Do-lateral-flow-tests-detect-omicron rapid-antigen-LFT-AffiDX Rapid-antigen-test Can-lateral-flow-tests-detect-omicron

shared by pharmacybiz on 11 Jan 22 - No Cached
  • pharmacybiz on 11 Jan 22
     
    Britain's biotech firm Avacta Group on Monday (January 10) announced halting sales of its Covid-19 rapid antigen lateral flow test AffiDX to replace antibodies in the device and increase its ability to diagnose the Omicron variant. The company stated that AffiDX is capable of detecting Omicron when the virus is present in high numbers in samples, but the sensitivity of the test reduces at lower viral loads. The performance of all rapid antigen tests came under scanner in wake of a large number of mutations in the Omicron variant. AffiDX contains both a proprietary Affimer reagent and a commercially available antibody. The Affimer reagent detects the Omicron variant with the same sensitivity as the Delta variant, and performance of the antibody is paired with the Affimer reagent in the test. This has been affected by the additional Omicron mutations, the firm said. Alastair Smith, chief executive of Avacta Group, said: "Our determination to only provide high quality, high performance diagnostic tests has led us to the correct decision to pause all marketing of the AffiDX® lateral flow antigen test. We have, of course, been unable to market the product in the UK since October 2021, as the product continues to await approval under the new CTDA regulatory process.
Nathan Goodyear

Salivary IgA antigliadin antibody as a marker for coeliac disease. - 0 views

www.ncbi.nlm.nih.gov/...PMC1793814

salivary IgA antigliadin antibodies celiac disease screening

shared by Nathan Goodyear on 06 Sep 11 - No Cached
  • Measurement of salivary IgA AGA provided excellent discrimination between those children with coeliac disease and the control groups, and our study suggests that it may provide a rapid, non-invasive method of screening for this disease before intestinal biopsy
  • Nathan Goodyear on 06 Sep 11
     
    salivary IgA antigliadin antibodies shown to be highly effective as screening tool for celiac disease
Nathan Goodyear

Low Serum Vitamin D Is Associated with Anti-Thyroid Peroxidase Antibody in Autoimmune T... - 0 views

www.ncbi.nlm.nih.gov/...PMC3936621

vitamin d autoimmune autoimmune disease TPO thyroid antibodies thyroid

shared by Nathan Goodyear on 07 Feb 16 - No Cached
  • Nathan Goodyear on 07 Feb 16
     
    low vitamin D associated with increased TPO antibodies.
Nathan Goodyear

Elevated Levels of Measles Antibodies in 68 7 8 Children with Autism - 0 views

mercola.fileburst.com/...20antibody%20titers%202003.pdf

Vaccine vaccinations Measles virus autism ASD

shared by Nathan Goodyear on 29 Jan 12 - No Cached
  • Nathan Goodyear on 29 Jan 12
     
    Antibodies to vaccine strain measles virus found in children with Autism. However, this was not found in siblings.
Nathan Goodyear

Clinical and Pathological Roles of Ro/SSA Autoantibody System - 0 views

www.hindawi.com/...606195

Anti-SSA antibodies Anti-Ro Lupus Sjogren's syndrome autoimmune disease

shared by Nathan Goodyear on 12 Aug 13 - No Cached
  • Nathan Goodyear on 12 Aug 13
     
    Clinical use of anti-SSA antibodies.  Most commonly linked with Lupus and Sjogren's syndrome.  
Nathan Goodyear

Autoantibody profiling of patients with au... [Clin Chem Lab Med. 2006] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...16776630

anti-thyroglobulin antibodies Hashimoto's thyroiditis thyroid autoimmune disease TPO

shared by Nathan Goodyear on 28 Aug 13 - No Cached
  • Nathan Goodyear on 28 Aug 13
     
    Anti-thyroglobulin antibodies have same specificity as TPO in Hashimoto's disease, but significantly lower sensitivity.
Nathan Goodyear

Serum and salivary antigliadin antibodies and ... [Acta Paediatr. 1996] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...8819547

celiac salivary antigliadin antiboides screening

shared by Nathan Goodyear on 06 Sep 11 - No Cached
  • Nathan Goodyear on 06 Sep 11
     
    salivary antigliadin antibodies shown to be highly effective in screening for celiac disease
Nathan Goodyear

Vitamin D and autoimmune thyroid diseases - 0 views

www.ncbi.nlm.nih.gov/...PMC4012880

vitamin d autoimmune disease autoimmune thyroid disease TPO thyroid autoimmune thyroid antibodies

shared by Nathan Goodyear on 07 Feb 16 - No Cached
  • Nathan Goodyear on 07 Feb 16
     
    low vitamin D implicated in increased anti thyroid antibodies and autoimmune thyroid disease.
Nathan Goodyear

First case of postmortem study in a patient vaccinated against SARS-CoV-2 - 0 views

www.ncbi.nlm.nih.gov/...PMC8051011

SARS-CoV-2 COVID-19 ADE COVID COVID19 vaccination antibody dependent enhancement

shared by Nathan Goodyear on 30 Jul 21 - No Cached
  • Nathan Goodyear on 30 Jul 21
     
    Antibody dependent viral enhancement from the vaccine.
Nathan Goodyear

NETosis and Neutrophil Extracellular Traps in COVID-19: Immunothrombosis and Beyond - PMC - 0 views

www.ncbi.nlm.nih.gov/...PMC8924116

cancer NETosis SARS-CoV-2 COVID COVID-19 COVID19 platelets

shared by Nathan Goodyear on 18 Apr 23 - No Cached
  • Pneumonia is a typical symptom of COVID-19 infection, while acute respiratory distress syndrome (ARDS) and multiple organ failure are common in severe COVID-19 patients
  • NETs are important for preventing pathogen invasion, their excessive formation can result in a slew of negative consequences, such as autoimmune inflammation and tissue damage
  • SARS-CoV-2 infection has also been linked to increased neutrophil-to-lymphocyte ratios, which is associated with disease severity and clinical prognosis
  • ...40 more annotations...
  • NETosis is a special form of programmed cell death in neutrophils, which is characterized by the extrusion of DNA, histones, and antimicrobial proteins in a web-like structure known as neutrophil extracellular traps (NETs)
    • Nathan Goodyear
      Nathan Goodyear on 23 Apr 23
       
      Definition
  • increased generation of reactive oxygen species (ROS) is a crucial intracellular process that causes NETosis
  • Another indirect route of SARS-CoV-2-induced NET production is platelet activation
  • When NETs are activated in the circulation, they can also induce hypercoagulability and thrombosis
  • In COVID-19, major NET protein cargos of NETs (i.e., NE, MPO, and histones) are significantly elevated.
  • SARS-CoV-2 can also infect host cells through noncanonical receptors such as C-type lectin receptors
  • Immunopathological manifestations, including cytokine storms and impaired adaptive immunity, are the primary drivers behind COVID-19, with neutrophil infiltration being suggested as a significant cause
  • NETosis and NETs are increasingly recognized as causes of vascular injury
  • SARS-CoV-2 and its components (e.g., spike proteins and viral RNA) attach to platelets and increase their activation and aggregation in COVID-19, resulting in vascular injury and thrombosis, both of which are linked to NET formation
    • Nathan Goodyear
      Nathan Goodyear on 23 Apr 23
       
      Connects SARS-CoV-2 to TLR on Platelets to NETosis to metastasis.
  • NET formation may be caused by activated platelets rather than SARS-CoV-2 itself
  • NETosis, leading to aberrant immunity such as cytokine storms, autoimmune disorders, and immunosuppression.
  • early bacterial coinfections were more prevalent in COVID-19 patients than those infected with other viruses
  • NETosis and NETs may also have a role in the development of post COVID-19 syndromes, including lung fibrosis, neurological disorders, tumor growth, and worsening of concomitant disease
    • Nathan Goodyear
      Nathan Goodyear on 23 Apr 23
       
      NETosis-> tumor growth
  • NETs and other by-products of NETosis have been shown to act as direct inflammation amplifiers. Hyperinflammation
  • “cytokine storm”
  • SARS-CoV-2 drives NETosis and NET formation to allow for the release of free DNA and by-products (e.g., elastases and histones). This may trigger surrounding macrophages and endothelial cells to secrete excessive proinflammatory cytokines and chemokines, which, in turn, enhance NET formation and form a positive feedback of cytokine storms in COVID-19
    • Nathan Goodyear
      Nathan Goodyear on 23 Apr 23
       
      Cycle of hyperinflammation
  • NET release enables self-antigen exposure and autoantibody production, thereby increasing the autoinflammatory response
  • patients with COVID-19 who have higher anti-NET antibodies are more likely to be detected with positive autoantibodies [e.g., antinuclear antibodies (ANA) and anti-neutrophil cytoplasmic antibodies (ANCA)]
  • COVID-19 NETs may act as potential inducers for autoimmune responses
  • have weakened adaptive immunity as well as a high level of inflammation
    • Nathan Goodyear
      Nathan Goodyear on 23 Apr 23
       
      Immunomodulation
  • tumor-associated NETosis and NETs promote an immunosuppressive environment in which anti-tumor immunity is compromised
  • NETs have also been shown to enhance macrophage pyroptosis in sepsis
  • facilitating an immunosuppressive microenvironment
  • persistent immunosuppression may result in bacterial co-infection or secondary infection
  • can enhance this process by interacting with neutrophils through toll-like receptor 4 (TLR4), platelet factor 4 (PF4), and extracellular vesicle-dependent processes
  • NET-induced immunosuppression in COVID-19 in the context of co-existing bacterial infection
  • Following initial onset of COVID-19, an estimated 50% or more of COVID-19 survivors may develop multi-organ problems (e.g., pulmonary dysfunction and neurologic impairment) or have worsening concomitant chronic illness
  • NETs in the bronchoalveolar lavage fluid of severe COVID-19 patients cause EMT in lung epithelial cells
  • decreased E-cadherin (an epithelial marker) expression
    • Nathan Goodyear
      Nathan Goodyear on 23 Apr 23
       
      Leads to emt
  • COVID-19 also has a long-term influence on tumor progression
  • Patients with tumors have been shown to be more vulnerable to SARS-CoV-2 infection and subsequent development of severe COVID-19
  • patients who have recovered from COVID-19 may have an increased risk of developing cancer or of cancer progression and metastasis
  • awaken cancer cells
  • NETs have been shown to change the tumor microenvironment
  • enhance tumor progression and metastasis
  • vitamin C has been tested in phase 2 clinical trials aimed at reducing COVID-19-associated mortality by reducing excessive activation of the inflammatory response
  • vitamin C is an antioxidant that significantly attenuates PMA-induced NETosis in healthy neutrophils by scavenging ROS
  • vitamin C may also inhibit NETosis and NET production in COVID-19
  • Metformin
  • Vitamin C
  • Nathan Goodyear on 18 Apr 23
     
    NETosis intimately involved in progressive COVID, long COVID, autoimmunity, and cancer
Nathan Goodyear

Arthritis Research & Therapy | Abstract | Restoration of regulatory and effector T cell... - 0 views

arthritis-research.com/...abstract

lupus SLE vitamin D D3 vitamin D Th1 Th17 inflammation autoimmune disease autoimmunity arthritis

shared by Nathan Goodyear on 28 Oct 12 - No Cached
  • Nathan Goodyear on 28 Oct 12
     
    Vitamin D supplementation in those individuals with SLE found to benefit these patients.   Vitamin D found to reduce TH1 and Th17 activity.  It also was found to decrease memory B cells and auto-antibodies.  Also of note is the level of vitamin D after therapy-only at 51.4 at 2 months and 41.5 at 6 months.
Nathan Goodyear

Biomedical Papers: The prevalence of non organ specific and thyroid autoimmunity in pat... - 0 views

biomed.papers.upol.cz/..._polycystic_ovary_syndrome.php

PTO autoimmune disease autoimmune thyroid PCOS polycystic ovarian syndrome hormones

shared by Nathan Goodyear on 14 Jun 16 - No Cached
  • Nathan Goodyear on 14 Jun 16
     
    high prevalence of thyroid antibodies, TPO, in women with PCOS.  This does not prove cause and effect, merely an association.  Both are inflammation driven.
Nathan Goodyear

Failure of gonadotropin therapy seco... [J Clin Endocrinol Metab. 1988] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...3279065

HCG anti-HCG autoimmune

shared by Nathan Goodyear on 15 May 12 - No Cached
  • Nathan Goodyear on 15 May 12
     
    Anti-HCG antibodies developed in long-term HCG therapy.  Implications in autoimmune disease or resistance?
Nathan Goodyear

Gonadotropin therapy failure seconda... [J Clin Endocrinol Metab. 1981] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...7228997

HCG anti-HCG autoimmune

shared by Nathan Goodyear on 15 May 12 - No Cached
  • Nathan Goodyear on 15 May 12
     
    HCG therapy induced anti-HCG antibodies.  No binding was found to TSH.  But, the concern is the binding to TSH, LH, FSH and resultant hypothyroidism or hypogonadism.
Nathan Goodyear

Hypothyroidism associated with anti-huma... [J Endocrinol Invest. 2003] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...15008254

autoimmune disease HCG anti-HCG hypothyroid hypothyroidism

shared by Nathan Goodyear on 15 May 12 - No Cached
  • Nathan Goodyear on 15 May 12
     
    a case report of anti-HCG antibodies in a 22 year old male on HCG therapy for idiopathic hypothalamic hypogonadism.  the Result was an autoimmune hypothyroidism as a result of the anti-HCG.
Nathan Goodyear

Influence of mode of delivery on gut microbiota composition in seven year old children ... - 0 views

gut.bmj.com/...1388.2.full

delivery allergies atopy mode of gut dysbiosis microbiota flora children bifidobacterium clostridium IgE

shared by Nathan Goodyear on 05 Apr 12 - No Cached
  • Nathan Goodyear on 05 Apr 12
     
    fascinating read.  This study looked at the mode of delivery and found that the balance of bifidobacterium and clostridium gut microbiota was altered by mode of delivery.  This has been associated with excessive IgE antibody production.  Ever wonder why we have so many allergies today?  Maybe it is because of the doctors rush to perform Ceserean Sections.
Nathan Goodyear

Zinc and diabetes--clinical links and molecul... [J Nutr Biochem. 2009] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...19442898

Zinc Zn diabetes DM glucose

shared by Nathan Goodyear on 31 Aug 12 - No Cached
  • Zinc supplementation of animals and humans has been shown to ameliorate glycemic control in type 1 and 2 diabetes, the two major forms of diabetes mellitus, but the underlying molecular mechanisms have only slowly been elucidated. Zinc seems to exert insulin-like effects by supporting the signal transduction of insulin and by reducing the production of cytokines, which lead to beta-cell death during the inflammatory process in the pancreas in the course of the disease
  • Nathan Goodyear on 31 Aug 12
     
    Zn show to help in glycemic control in both type I and II diabetics.  It appears to do this through inflammation reduction and thus improved insulin/Receptor signal transduction.   Also of note, antibodies against Zn transporter have been found in type I DM.
Nathan Goodyear

The Complex Role of Estrogens in Inflammation - 0 views

edrv.endojournals.org/...521.full

estrogens inflammation

shared by Nathan Goodyear on 14 Aug 12 - No Cached
  • These studies suggest inflammation-dependent up-regulation of ERβ relative to ERα.
  • up-regulation of ERβ relative to ERα under hypoxic conditions, which might lead to a preponderance of signaling through ERβ pathways
  • it seems that E2 at periovulatory to pregnancy levels inhibited proinflammatory cytokines from PBMCs
  • ...26 more annotations...
  • it is clear that E2 can stimulate antibody production by B cells, probably by inhibiting T cell suppression of B cells
  • In cycling women, the largest quantities of Ig were detected before ovulation
  • In contrast, E2 at high concentrations leads to a suppression of B-lymphocyte lineage precursors
  • E2 at periovulatory to pregnancy serum levels is able to stimulate antibody secretion under healthy conditions but also in autoimmune diseases, whereas similar serum levels of E2 lead to a suppression of bone marrow B cell lineage precursors
  • In chronic inflammatory disorders, where B cells play a decisive role, E2 would promote the disease when autoaggressive B cells are already present, whereas chronically elevated E2 would inhibit initiation of an autoimmune disease when no such B cells are available. This might be a good reason why particularly B cell-dependent diseases such as SLE, mixed connective tissue disease (Sharp syndrome), IgA nephropathy, dermatitis herpetiformis, gluten sensitive enteropathy, myasthenia gravis, and thyroiditis appear in women in the reproductive years, predominantly, in the third or fourth decades of life
  • Th17 cells are thought to be the main responsible cells for chronic inflammatory tissue destruction in autoimmune diseases
  • IFN-γ, IL-12, and TNF were allocated to Th1 reactions
  • IL-4, IL-5, and IL-10 to Th2 responses
  • antiinflammatory T regulatory cells producing TGF-β and proinflammatory T helper type 17 cells (Th17) producing IL-17
  • no direct effects of estrogens on Th17 cells or IL-17 secretion have been described until now.
  • So-called Th17 cells producing IL-17 are the main T cells responsible for chronic inflammation.
  • Because IFN-γ has been allocated a Th17-inhibiting role (Fig. 1⇑), its increase by E2 at pregnancy doses and the E2-mediated inhibition of TNF must be viewed as a favorable effect in chronic inflammation
  • in humans and mice, E2 at periovulatory to pregnancy levels stimulates IL-4, IL-10, and IFN-γ but inhibits TNF from CD4+ T cells
  • In humans and mice, E3 and E2, respectively, at pregnancy levels inhibit T cell-dependent delayed type hypersensitivity
  • increased IL-4, IL-10, and IFN-γ in the presence of low TNF support an antiaggressive immune response
  • secretion of IL-1β is increased at periovulatory/proestrus to early pregnancy levels, whereas IL-1 secretion is inhibited at high pregnancy levels
  • The dichotomous effect of E2 on IL-1β and TNF at high and low concentrations is most probably due to inhibition of NF-κB at high concentrations
  • experiments with mouse and rat macroglial and microglial cells demonstrate that E2 at proestrus to pregnancy levels exerts neuroprotective effects by increasing TGF-β and by inhibiting iNOS and NO release, and reducing expression of proinflammatory cytokines and prostaglandin E2 production.
  • E2 at periovulatory to pregnancy levels inhibits NF-κB activation, which must be viewed as an antiinflammatory signal
  • It was shown that E2 concentrations equal to or above 10−10 m are necessary to inhibit NF-κB activation
  • important proinflammatory cytokines are typically inhibited at periovulatory (proestrus) to pregnancy levels of E2, which is evident for IL-6, IL-8, and TNF
  • low E2 concentrations were demonstrated to have no or even stimulatory effects
  • This renders a woman in the postmenopausal phase to a more proinflammatory situation
  • most in vitro studies demonstrated a stimulatory effect of E2 on secretion of IL-4, IL-10, and TGF-β typically at periovulatory to pregnancy levels
  • E2 at periovulatory to pregnancy levels has an ameliorating effect on chronic inflammatory diseases as long as B cell-dependent immunity or an overshooting fibrotic tissue repair process do not play a crucial pathogenic role. However, when the B cell plays an important role, E2 might even stimulate the disease process as substantiated by flare-ups in SLE during pregnancy
    • Nathan Goodyear
      Nathan Goodyear on 15 Aug 12
       
      SLE, mixed connective tissue disease (Sharp syndrome), IgA nephropathy, dermatitis herpetiformis, gluten sensitive enteropathy, myasthenia gravis, and thyroiditis
  • Short-term administration of E2 at pregnancy levels was shown to induce an inflammatory response specific to the lateral prostate of the castrated male rat
  • Nathan Goodyear on 14 Aug 12
     
    great review of the complex interaction between Estrogens and inflammation.  Reference here is in females.
Nathan Goodyear

Low Levels of Serum Vitamin D3 Are Associated with Autoimmune Thyroid Disease in Pre-Me... - 0 views

www.ncbi.nlm.nih.gov/...PMC3993051

vitamin D TPO autoimmune autoimmune disease autoimmune thyroid disease thyroid hormones

shared by Nathan Goodyear on 07 Feb 16 - No Cached
  • Nathan Goodyear on 07 Feb 16
     
    low vitamin D associated with increased autoimmune thyroid TPO antibodies in women.  This association was found in pre menopause women, but not post menopause women.
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