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Nathan Goodyear

CORONARY ARTERY CALCIUM SCORE VERSUS A MULTIPLE BIOMARKER APPROACH FOR CORONARY HEART D... - 0 views

www.sciencedirect.com/...S0735109713608128

coronary artery calcium CAD CVD cardiovascular disease heart health risk homocysteine BNP

shared by Nathan Goodyear on 26 Aug 14 - No Cached
  • Nathan Goodyear on 26 Aug 14
     
    Coronary artery calcium is positively associated with CAD risk.  It compares to multiple biomarker assessment, BNP, and homocysteine assessment.
Nathan Goodyear

ENDOGENOUS SEX HORMONES, BLOOD PRESSURE CHANGE, AND RISK OF HYPERTENSION IN POSTMENOPAU... - 0 views

www.ncbi.nlm.nih.gov/...PMC3428144

hormone hormones Testosterone Estradiol Estrogen women CVD cardiovascular disease female SHBG hypertension post-menopause blood pressure

shared by Nathan Goodyear on 02 Feb 15 - No Cached
  • Among postmenopausal women, serum T was elevated in hypertensive participants [9, 11, 12], and total T, free T, and DHEA were positively correlated with SBP
  • T and DHEA were attenuated by adjustment for BMI, reflecting either a confounding or a mediating effect of obesity
  • SHBG concentration was inversely associated with risk of hypertension and longitudinal rise of BP over time
  • ...8 more annotations...
  • SHBG has been postulated as a marker for insulin resistance
  • In vitro studies showed that insulin inhibits SHBG production from hepatoma cells
  • In intervention studies, successful weight loss and weight maintenance increased SHBG in men with obesity
  • E2 may also induce insulin resistance and thereafter tend to raise BP.
  • strong association between E2 and measures of insulin resistance in postmenopausal women, independent of adiposity
  • In postmenopausal women that received hormone replacement therapy, estrogen therapy increased mononuclear cell secretion of tumor necrosis factor alpha (TNF-α)
  • estrone levels were positively associated with inflammatory markers in postmenopausal women
  • higher baseline concentrations of endogenous E2, total and bioavailable T, and DHEA and lower concentration of SHBG were associated with a higher incidence of hypertension and a greater increase in BP during follow-up
  • Nathan Goodyear on 02 Feb 15
     
    Data from MESA study finds that increasing endogenous Estradiol, Total and free Testosterone, DHEA, and lower SHBG were associated with hypertension in postmenopausal women.
Nathan Goodyear

Muscle Hypertrophy 2011 - 0 views

www.unm.edu/...hypertrophy2011UNM.html

resistance training weight lifting muscle exercise weight training

shared by Nathan Goodyear on 20 Mar 15 - No Cached
  • mechanical tension, muscle damage and metabolic stress are the three primary factors that promote hypertrophy from exercise
  • The mechanical tension is directly related to intensity of the exercise, which is the key to stimulating muscle growth
  • Muscle damage, that leads to muscle soreness, from exercise training initiates an inflammatory response, which activates satellite cells growth processes
  • ...6 more annotations...
  • metabolic stress that is a result of the byproducts of anaerobic metabolism (i.e., hydrogen ions, lactate, inorganic phosphates) is now also believed to promote hormonal factors leading to muscle hypertrophy
  • The upper extremities tend to show more growth earlier then the lower body
  • Maximal growth occurs with loads between 80-95% of 1 repetition maximum
  • weightlifters and powerlifters show more favorable hypertrophy of type II (fast twitch) muscle fibers
  • body builders appear to have comparable hypertrophy in both the type I (slow twitch) and type II muscle fibers
  • Multi-joint exercises have been shown to produce larger increases of anabolic hormones than single-joint exercises
  • Nathan Goodyear on 20 Mar 15
     
    Review of the physiology of muscle building.  The authors review the evidence behind the types of muscle building exercises and the physiology responsible for muscle hypertrophy.  The authors point to Schoenfeld's description of mechanical tension, muscle damage, and metabolic stress to build muscle.
Nathan Goodyear

Multi-targeted therapy of cancer by niclosamide: a new application for an old drug - 0 views

www.ncbi.nlm.nih.gov/...PMC4166407

Cancer Niclosamide CSC cancer stem cells

shared by Nathan Goodyear on 13 Dec 18 - No Cached
  • Nathan Goodyear on 13 Dec 18
     
    Niclosamide as a therapy to treat CSC and cancer in general.
rajeshsharma10

What Key Features must you look for in a Hospital Management System? - 0 views

prathimahospitals.blogspot.com/...ures-must-you-look-for-in.html

best hospital in hyderabad best neuro hospital in hyderabad best multi specialty hospital in Hyderabad

shared by rajeshsharma10 on 31 Jul 18 - No Cached
  • rajeshsharma10 on 31 Jul 18
     
    Social insurance industry ought to be changed and update with the time, Hms365cloud Systems is giving driving administrations development in this part of human services as Hospital Management System.
Nathan Goodyear

Interpretation of the Coronary Artery Calcium Score in Combination with Conventional Ca... - 0 views

www.ncbi.nlm.nih.gov/...PMC3840900

calcium score coronary calcium score CVD heart health heart cardiovascular disease

shared by Nathan Goodyear on 05 Oct 17 - No Cached
  • Nathan Goodyear on 05 Oct 17
     
    A more recent article on the interpretation of the coronary calcium score.  Score alone must be taken in context with the individual.
Nathan Goodyear

Vitamin C, a Multi-Tasking Molecule, Finds a Molecular Target in Killing Cancer Cells - 0 views

www.ncbi.nlm.nih.gov/...PMC5959041

cancer vitamin C

shared by Nathan Goodyear on 03 Sep 19 - No Cached
  • Nathan Goodyear on 03 Sep 19
     
    Good overall review; particularly of the distribution of vitamin C in the body.
Nathan Goodyear

Serum vitamin D and sex hormones levels in men and women: The Multi-Ethnic Study of Ath... - 0 views

www.maturitas.org/...abstract

vitamin D hormones SHBG estradiol Testosterone free Testosterone total Testosterone DHEA

shared by Nathan Goodyear on 13 Mar 17 - No Cached
  • Nathan Goodyear on 13 Mar 17
     
    low vitamin D levels effect sex hormone levels in men and women.
Nathan Goodyear

Alzheimer's Disease Clinical and Research Update for Health Care Practitioners - 0 views

www.ncbi.nlm.nih.gov/...PMC3776389

Alzheimer's disease cognition memory Alzheimers brain brain health alpha-GPC phosphatidyl serine Huperzine A choline

shared by Nathan Goodyear on 26 Sep 17 - No Cached
  • Alpha GPC, phosphatidylserine, Huperzine A, and choline show promise as nutraceutical agents for enhancing cognitive performance and slowing cognitive decline
  • Alpha GPC, also known as L-Alpha Glycerylphosphorylcholine, a naturally occurring form of choline, acts as a parasympathomimetic acetylcholine precursor and has shown promise in improving cognitive symptoms related to AD, vascular dementia, and multi-infarct dementia
  • Phosphatidylserine is a widely abundant anionic phospholipid in the human body and has been shown to improve age-related cognitive changes
  • ...2 more annotations...
  • Huperzine A (a natural cholinesterase inhibitor) has been linked to improved memory performance in elderly people with benign forgetfulness, as well as patients with AD and vascular dementia
  • Cholinesterase inhibitors have been shown to have neuroprotective properties in patients with mild [37] as well as moderate-to-advanced AD
  • Nathan Goodyear on 26 Sep 17
     
    good review of treatment for Alzheimer's, both prescription and natural.
Nathan Goodyear

Nrf2 inhibition reverses the resistance of cisplatin-resistant head and neck cancer cel... - 0 views

www.ncbi.nlm.nih.gov/...PMC5198738

head and neck cancer MDR heme-oxygenate-1 artesunate multi-drug resistance Nrf2 HO-1

shared by Nathan Goodyear on 28 Jun 19 - No Cached
  • Nathan Goodyear on 28 Jun 19
     
    Nrf2 inhibition decreased chemoresistance to artesunate in Patients with head and neck cancer resistant to cisplatin.
Nathan Goodyear

Vitamin C treatment attenuates hemorrhagic shock related multi-organ injuries through t... - 0 views

www.ncbi.nlm.nih.gov/...PMC4246491

vitamin C HO-1 heme-oxygenase-1 inflammation

shared by Nathan Goodyear on 26 May 20 - No Cached
  • Nathan Goodyear on 26 May 20
     
    vitamin C shown to counter inflammation and protect against organ failure via upregulation of HO-1.
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
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