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Nathan Goodyear

Pituitary-adrenocortical function in abdominal obesity of males: ev... - PubMed - NCBI - 0 views

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    Obesity associated with decreased adrenal 21alpha-hydroxylase activity.  The result is decreased cortisol production in obese individuals.  
Nathan Goodyear

CLINICAL CHARACTERISTICS AND ENDOSCOPIC FINDINGS ASSOCIATED WITH BLASTOCYSTIS HOMINIS I... - 1 views

  • patients with alcoholic cirrhosis and chronic hepatitis experienced more severe symptoms when infected with B. hominis
  • individuals with chronic HBV infection were at increased risk of acquiring B. hominis
  • Among the 34 individuals with chronic HBV infection in this study, individuals who harbored B. hominis were more likely to have an abnormal liver function test result than those who did no
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  • intense inflammatory cell infiltration, edematous lamina propria, and mucosal sloughing. However, the pathogenicity of B. hominis in human intestine has only been elucidated from case reports and a case series study
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    Blastocystis hominis.
Nathan Goodyear

Expression of Functional Leptin Receptors in Rodent Leydig Cells: Endocrinology: Vol 14... - 0 views

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    mouse model finds leydig cells have leptin receptors.  Stimulation of the leptin receptors decreased leydig Testosterone production.
Nathan Goodyear

Vitamin E reduces amyloidosis and improves cognitive function in Tg2576 mice following ... - 0 views

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    animal model: vitamin E reduced brain lipid oxidation post TBI.
wheelchairindia9

Ankle Support - 0 views

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    Tynor Knee Cap Pair Knee Caps are tubular supports widely used in orthopaedic practice to provide mild compression warmth & support to the limbs and joints, to allay pain and inflammation, generally associated with old age, arthritis, sports injury etc. Hypoallergenic Four way stretch Uniform compression Simple pull on application Tynor Knee Cap (Pair) Features Bilayered , cotton on the inside Dermophillic interpahse with the skin Better sweat absorption Better comfort Better patient compliance. No allergies or rash Bilayered, nylon on the outside Ensures long life Excellent aesthetics Color fastness. Two layers enclose air space retains body heat effectively Provides therapeutic warmth and assuring support to the knee. Four-way stretchable seamless tubular fabric Effective compression Enhanced comfort. No vaso constriction. Adjusts compression even on uneven diameters
Nathan Goodyear

Implication from thyroid function decreasing during chemotherapy in breast cancer patie... - 0 views

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    chemotherapy decreases thyroid hormone levels; T3 therapy improves chemosensitization via increase S phase from G0 and G1 phases of growth
Nathan Goodyear

Hypercalcemia of malignancy and new treatment options - 0 views

  • Hypercalcemia of malignancy occurs as the result of direct bone metastasis and via humoral mechanisms such as parathyroid hormone-related protein (PTHrP) or 1,25-dihydroxyvitamin D mediated pathways
  • ectopic secretion of parathyroid hormone (PTH) has been implicated
  • Hypercalcemia due to osteolytic bone lesions is common in multiple myeloma, leukemia, and breast cancer
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  • Humoral hypercalcemia is predominant in squamous cell, renal cell and ovarian cancers, and lymphomas are associated with 1,25-dihydroxyvitamin D mediated hypercalcemia
  • 20% of cases of hypercalcemia of malignancy and is frequently encountered in multiple myeloma, metastatic breast cancer, and to a lesser extent in leukemia and lymphoma
  • Physiologic bone turnover requires the complementary activity of osteoblasts – mesenchymal stem cell-derived bone-forming cells – and bone-resorbing cells of monocyte and macrophage lineage known as osteoclasts
  • In local osteolytic hypercalcemia, the RANKL/RANK interaction results in excessive osteoclast activation leading to enhanced bone resorption and thus hypercalcemia
  • In addition, osteoclast activation is also mediated by malignancy secreted cytokines, including interleukin-1, initially termed “osteoclast stimulating factor”
  • Macrophage inflammation protein 1-alpha (MIP 1-alpha)
  • hypercalcemia is through extra-renal 1,25-dihydroxyvitamin D (calcitriol) production
  • 1% of cases
  • increased production of 1,25-dihydroxyvitamin D occurs nearly exclusively in Hodgkin and non-Hodgkin lymphoma with case reports of the same in ovarian dysgerminoma
  • 1-α-hydroxylase in the kidney, a process regulated by PTH
  • in 1,25-dihydroxyvitamin D induced hypercalcemia, malignant cells likely recruit and induce adjacent macrophages to express 1-α-hydroxylase, converting endogenous calcidiol into calcitriol.31 Calcitriol then binds to receptors in the intestine leading to heightened enteric calcium reabsorption with resultant hypercalcemia
  • this mechanism of disease is best conceptualized as an absorptive form of hypercalcemia
  • Ectopic production of PTH by malignant cells has been described in a handful of cases involving cancer of the ovary and lung, as well as neuroendocrine tumors and sarcoma
  • primary hyperparathyroidism and malignancy comprising nearly 90% of cases of hypercalcemia
  • an initial panel consisting of PTH, PTHrP, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D should be obtained
  • Lymphoma, a hypercalcemia due to 1,25-dihydroxyvitamin D mediated pathways, is implied by elevations in 1,25-dihydroxyvitamin D without concomitant elevations in 25-hydroxyvitamin D. In such cases, PTH is low and PTHrP undetectable
  • Treatment of hypercalcemia of malignancy is aimed at lowering the serum calcium concentration by targeting the underlying disease, specifically by inhibiting bone resorption, increasing urinary calcium excretion, and to a lesser extent by decreasing intestinal calcium absorption
  • mildly symptomatic disease
  • marked symptoms
  • hydration with isotonic fluid (if admitted), avoidance of thiazide diuretics, and a low-calcium diet
  • denosumab
  • Denosumab is an RANKL antibody that inhibits osteoclast maturation, activation, and function
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    hypercalcemia in cancer and treatments.
fnfdoc

Appendicitis: Causes, Symptoms and Treatment | Health Blog - 0 views

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    What Is Appendicitis? How to diagnose Appendicitis? Where is Appendix pain located In this article, we hope you can find all of your answers related to Appendicitis. We covered everything about Appendicitis. We discussed types, causes, symptoms, tests, and treatment of Appendicitis.
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    Appendicitis is an inflammation of the appendix, which is a small tube of intestinal tissue that projects from the large intestine. While the appendix does not seem to have a particular function, one theory suggests that it acts as a storehouse of good bacteria and boosts immunity after diarrheal illness. However, some experts believe the appendix is just a purposeless remnant from our evolutionary past. One thing we're sure of is that we can live without it, without any apparent consequences.
Nathan Goodyear

N-Acetylcysteine Improves Liver Function in Patients with Non-Alcoholic Fatty Liver Dis... - 0 views

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    Oral NAC useful for elevated liver enzymes in NAFLD
Nathan Goodyear

Nutrients | Free Full-Text | Myths, Artifacts, and Fatal Flaws: Identifying Limitations... - 0 views

  • l-gulonolactone oxidase, an enzyme with the synthesis of l-ascorbic acid as its only known function
  • prolonged fasting causes ascorbate synthesis to decline
  • agents that stimulate glycogenolysis also stimulate ascorbate synthesis when an animal is in a fed state
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    Great review on the science of vitamin C.
Nathan Goodyear

Dexamethasone prevents postoperative nausea and vomiting: Benefit versus risk - Science... - 0 views

  • 2.5–10 mg
  • Dexamethasone is a synthetic form of adrenocorticoid, and acts mainly as a glucocorticoid receptor with almost no mineralocorticoid receptor functions
  • dexamethasone increases synthesis of endorphin in the body,14 uplifting moods and appetite
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  • serotonin Type 3 receptor antagonist (ondansetron, dolasetron, and granisetron), dopamine Type 2 receptor antagonist (droperidol and metoclopramide), muscarinic cholinergic Type 1 receptor antagonist (scopolamine), and histamine Type 1 receptor antagonist (promethazine and prochlorperazine)
  • dexamethasone can effectively prevent PONV7, 8, 9 induced by epidural morphine used to reduce postoperative pain
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    Dexamethasone for nausea
Nathan Goodyear

Neuroimaging of sport concussion: persistent alterations in brain structure and functio... - 0 views

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    New study suggest brain healing lags far behind in concussion recovery.
Nathan Goodyear

Modulation of P2X4/P2X7/Pannexin-1 sensitivity to extracellular ATP via Ivermectin indu... - 0 views

  • ATP can function as a prototypical danger signal that activates a potent immune response, but can also promote cancer progression
  • tumor growth and survival appears to critically
  • our findings indicate that Ivermectin may kill cancer cells though a mechanism combining apoptosis and necrosis/pyroptosis
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  • Ivermectin has recently been shown to have anti-tumor properties that we hereby link to its ability to augment P2X4/P2X7/Pannexin-1 signaling and caspase-1 activation, which is also associated with cancer cells’ elevated expression of P2X4/P2X7 receptors
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    Ivermectin shown to induce apoptosis, necrosis, and autophagy in shows syngergist activity with chemotherapy.  This was shown in triple negative breast cancer cell lines which are more resistent to therapy.
Nathan Goodyear

American Journal of Obstetrics & Gynecology Home Page - 0 views

  • M1 macrophages are characterized by the secretion of reactive oxygen species and proinflammatory cytokines and chemokines and can be identified via the cell surface marker CD86
  • M2 macrophages secrete growth factors and antiinflammatory immune modulators and can be identified by the cell surface marker CD206
  • an overzealous M2 response can also lead to excess tissue deposition and fibrosis
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  • Studies of similar meshes that are used in hernia repair have demonstrated that all polypropylene meshes induce a prolonged inflammatory response at the site of implantation
  • the long-term presence of activated inflammatory cells, such as macrophages at the mesh tissue interface, can impact negatively the ability of the mesh to function as intended.
  • All M1 proinflammatory and M2 proremodeling cytokines and chemokines were increased in mesh explants as compared with nonmesh tissue (Table 3Table 3), which indicated a robust, active, and ongoing host response to polypropylene long after implantation
  • Comparison of the ratio of the M2 proremodeling cytokines (IL-10+IL-4) with the M1 proinflammatory cytokines (TNF-α+IL-12p70) revealed a decrease in mesh explants as compared with controls (P = .003), which indicated a shift towards a proinflammatory profile.
  • Mesh explants contained a higher number of total cells/×200 field when compared with controls (682.46 ± 142.61 cells vs 441.63 ± 126.13 cells; P < .001) and a lower ratio of M2:M1 macrophages (0.260 ± 0.161 cells vs 1.772 ± 1.919; P = .001), which supported an ongoing proinflammatory response.
  • the host response was proportional to the amount of material in contact with the host
  • A persistent foreign body response was observed in mesh-tissue complexes that were excised from women who required surgical excision of mesh months to years after mesh implantation
  • The host response was characterized by a predominance of macrophages with an increase in both proinflammatory and proremodeling cytokines/chemokines along with increased tissue degradation, as evidenced by increased MMP-2 and -9
  • Mesh-tissue complexes removed for mesh exposure had increased pro–MMP-9 that indicated a proinflammatory and tissue destruction–type response
  • The presence of macrophages, elevated cytokines, chemokines, and MMPs in tissue-mesh complexes that were excised from patients with exposure or pain suggests that polypropylene mesh elicits an ongoing host inflammatory response
  • In the presence of a permanent foreign body, the implant is surrounded with a fibrotic capsule because it cannot be degraded
  • For hernia meshes, if the fibers are too close (<1 mm), the fibrotic response to neighboring fibers overlaps, or “bridges,” and results in “bridging fibrosis” or encapsulation of the mesh
  • Gynemesh PS has a highly unstable geometry when loaded that resulted in pore collapse and increasing stiffness of the product
  • mesh shrinkage (50-70%) has been described to occur after transvaginal insertion of prolapse meshes
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    Mesh and the abnormal immune response.
Nathan Goodyear

Paradoxical effects of obesity on T cell function during tumor progression and PD-1 che... - 0 views

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    Obesity is not the immune systems friend when it comes to cancer. Why does conventional medicine always look at things through the prism of the effects for drugs and not on the patient, carcinogenesis...
Nathan Goodyear

Immuno-oncology: understanding the function and dysfunction of the immune system in cancer - 0 views

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    Great review of the immune system and cancer.
Nathan Goodyear

IL-2: The First Effective Immunotherapy for Human Cancer | The Journal of Immunology - 0 views

  • IL-2 is a 15.5-kDa cytokine secreted predominately by Ag-simulated CD4+ T cells, but it can also be produced by CD8+ cells, NK cells, and activated dendritic cells
  • IL-2 is the predominant factor responsible for the maintenance of CD4+ regulatory T cells
  • A generalized capillary leak syndrome was induced by IL-2 in vivo that resulted in interstitial pulmonary infiltrates and substantial weight gain in patients
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  • The side effects were transient and returned to baseline following treatment
  • Tumors do not express IL-2 receptors and thus the antitumor activity was the result of IL-2 stimulation of immune cell
  • Patients with metastatic melanoma or metastatic renal cell cancer were uniquely responsive to high-dose IL-2 administration, and except for patients with advanced non-Hodgkin’s lymphomas (35) only rare responses were seen in patients with other tumor types
  • The underlying toxicity of IL-2 results from a capillary leak that leads to fluid extravasation into visceral organs that can compromise their function
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    Great review of the history of IL-2 in the treatment of cancer.  IL-2 stimulates the immune system to attack cancer.  Don't reinvent the wheel; use what is already present and available.
Nathan Goodyear

Oncotarget | Preclinical evaluation of a nanoformulated antihelminthic, niclosamide, in... - 0 views

  • Ovarian cancer is the most lethal gynecologic malignancy in the world
  • paclitaxel represents a breakthrough in the treatment of ovarian cancer, the overall 5-year survival rate of patients with stage III disease is still approximately 40%
  • Targeting cancer stem cells is an emerging concept in cancer therapy
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  • Ovarian cancer stem cells play an important role in chemoresistance and cancer recurrence
  • Furthermore, recent studies indicate that niclosamide exhibits anticancer effects against various human cancer cells by acting on multiple cell signaling pathways and inducing mitochondrial uncoupling [16–21]
  • has low systemic bioavailability (~10%) when administered orally, which is beneficial for treating local parasitic infections of the intestines while minimizing systemic exposure
  • The nano-NI demonstrated significantly higher inhibitory effects on sphere formation than the original niclosamide did
  • the nano-NI formulation decreased the metabolic activity of ovarian cancer cells and caused a metabolic shift from oxidative phosphorylation to glycolysis
  • This toxicity evaluation showed that oral nano-NI had no toxic effect on either group of mice in terms of weight, plasma albumin levels, and blood cell counts, and revealed no adverse effects on vital organ function in the rodents, which suggests that nano-NI is safe for animals
  • niclosamide inhibits tumor cell growth by interrupting multiple pathways (Wnt, Notch, STAT3, NF-κB, and mTORc1) and the generation of reactive oxygen species in several cancer cells
  • The current standard therapy for ovarian cancer includes taxanes and platinum-based chemotherapy after cytoreductive surgery. Among treated patients, nearly 70 to 80% will experience disease recurrence
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    nano-Niclosamide more effective than traditional Niclosamide in in vitro and in vivo ovarian cancer.
Nathan Goodyear

Update on Programmed Death-1 and Programmed Death-Ligand 1 Inhibition in the Treatment ... - 0 views

  • Cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), the first immune checkpoint receptor to be clinically targeted, is exclusively expressed on the surface of CD4+ and CD8+ T cells in lymphatic tissue and is involved in T-cell regulation, proliferation, and tolerance
  • programmed death-1 (PD-1) immune checkpoint inhibitor antibodies, which restores T-cell effector function and augments the host anti-tumor response by blocking the binding of either programmed death-ligand 1 (PD-L1) and/or PD-L2 to PD-1 receptors
  • lung cancer is the first and second cause of cancer mortality in men and women
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  • Eighty-five percent of lung cancers are non-small-cell lung cancer (NSCLC)
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    To read update article on PD-1 and immunotherapy.
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