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Nathan Goodyear

Interferon-[alpha] reduces the density of monoaminergic axon... : NeuroReport - 0 views

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    inflammation, IFN-gamma, shown to lead to 5-HT and noradrenergic axon degeneration.  This reveals another inflammatory contribution to depression
Nathan Goodyear

Interferon-alpha-induced changes in tryptoph... [Biol Psychiatry. 2003] - PubMed - NCBI - 0 views

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    paroxetine, SSRI, shown to improve depressive symptoms without altering kynurenine levels.  Revealing underlying issue of depression in many individuals is disordered tryptophan metabolism due to inflammation
Nathan Goodyear

Anemia in cancer - 0 views

  • Anemia is a frequent finding in cancer patients, occurring in >40% of cases
  • chemotherapy, the incidence of anemia may rise to 90%
  • Anemia exerts a negative influence on the quality of life
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  • Anemia has also been identified as an adverse prognostic factor
  • mild (10 g/dl—normal), moderate (8–10 g/dl), severe (6.5–8 g/dl) and life threatening (<6.5 g/dl or unstable patient) anemia
  • anemia in cancer patients is often multifactorial.
  • Cancer itself can directly cause or exacerbate anemia either by suppressing hematopoiesis through bone marrow infiltration or production of cytokines that lead to iron sequestration, or by reduced red blood cell production
  • in inflammatory anemia, iron deficiency should be defined by a low transferrin saturation of <20%, ferritin levels of <100 ng/ml and a low reticulocyte hemoglobin concentration of <32 pg
  • anemia to thrombocytosis, as commonly seen in cancer patients
  • TNF-α inhibits hemoglobin production
  • treatment itself may be a major cause of anemia
  • Other cytokines, such as interleukin-6 (IL-6), IL-1 and interferon-γ, have also been shown to inhibit erythroid precursors in vitro [9], albeit to a lesser extent
  • In inflammation, from whatever cause, IL-6 induces the liver to produce hepcidin. Hepcidin decreases iron absorption from the bowel and blocks iron utilization in the bone marrow
  • Numerous in vitro studies have illustrated the central role of TNF-α in the pathogenesis of anemia
  • nephrotoxic effects of particular cytotoxic agents such as platinum salts can also lead to the persistence of anemia through reduced Epo production by the kidney
  • Currently two options are at the disposal of the clinician for the treatment of anemia in cancer patients: transfusion of packed red blood cells and the use of erythropoiesis-stimulating agents (ESAs)
  • The goal of the treatment is to relieve the symptoms of anemia such as fatigue and dyspnea.
  • Transfusion of 1 unit of packed red blood cells has been estimated to result in an increase in the hemoglobin level of 1 g/dl in a normal-sized adult
  • a higher mortality rate in patients receiving ESA treatment
  • Recent concerns regarding the risk of thromboembolism in patients treated with ESA have been corroborated by the meta-analyses conducted by Tonnelli and Bennett
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    Great review of anemia in Cancer:  1)  blood loss 2)  increased RBC loss 3)   decreased RBC production Cancer infiltration of marrow can reduce hematopoiesis.  Inflammatory cytokines can reduce hematopoiesis.  Inflammatory cytokines can block Fe absorption.  Chemo and radiation can cause anemia--particularily platinum based therapies.
Nathan Goodyear

Clinical review: Specific aspects of acute renal failure in cancer patients - 0 views

  • uric acid crystal formation in the renal tubules secondary to hyperuricaemia
  • calcium phosphate deposition related to hyperphosphataemia
  • usually develops shortly after the initiation of cytotoxic chemotherapy
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  • Non-recombinant urate oxidase (Uricozyme®)
  • recombinant urate oxidase (Rasburicase®)
  • urine alkalisation may induce calcium phosphate deposition
  • renal replacement therapy should be started on an emergency basis when hydration fails to produce a prompt metabolic improvement or when ARF develops
  • Up to 50% of patients with newly diagnosed multiple myeloma have renal failure and up to 10% require dialysis
  • renal ultrasonography remains the method of choice for investigating extra-renal obstruction
  • The relief of the obstruction, either by percutaneous nephrostomy or through a ureteral stent, is the cornerstone of treatment
  • TMA may be associated with the cancer itself, with cancer chemotherapy, or with allogeneic BMT
  • thrombotic microangiopathy (TMA)
  • it may be as high as 5%
  • Most of the cases occur in patients with solid tumours, the most common type being adenocarcinoma (stomach, breast and lung)
  • The pathophysiology of the TMA-malignancy association remains controversial, although many studies suggest an insult to the vascular endothelium
  • mitomycin C. Subsequently, TMA has been reported with many anti-cancer agents, including gemcita-bine, bleomycin, cisplatin, CCNU, cytosine arabinoside, daunorubicin, deoxycoformycin, 5-FU, azathioprine and interferon α
  • Plasma exchanges have been shown to improve prognosis in the general population of patients with TMA
  • Causative factors should be looked for and antihypertensive treatment given. Lastly, in the absence of guidelines, we believe that plasma exchange should be proposed in patients with severe cancer treatment-associated TMA
  • The most widely used protective measure is saline infusion to induce solute diuresis
  • During methotrexate infusion and elimination, fluids should be given to maintain a high urinary output and urinary alkalisation should be performed to keep the urinary pH above 7.5. Rescue with folinic acid (50 mg four times a day) should be started 24 hours after each high-dose metho-trexate infusion and serum methotrexate concentrations should be measured every day
  • cyclophosphamide and ifosfamide
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    cancer and renal failure
Nathan Goodyear

An interferon‐γ‐related cytokine storm in SARS patients - Huang - 2005 - Jour... - 0 views

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    SARS has associated cytokine storm
Nathan Goodyear

N-acetylcysteine improves antitumoural response of Interferon alpha by NF-kB downregula... - 0 views

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    NAC for treatment of hepatocellular cancer.
Nathan Goodyear

SERUM PROLACTIN IN MELANOMA PATIENTS WITH INTERFERON ALPHA2B TREATMENT - PubMed - 0 views

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    Elevated prolactin found statistically elevated in melanoma versus dysplastice nevi.
Nathan Goodyear

Ozone therapy: A clinical review - 0 views

  • Its basic function is to protect humans from harmful effects of UV radiation
  • Its effects are proven, consistent and with minimal side effects
  • Medical O3, used to disinfect and treat disease, has been around for over 150 years
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  • O3 not only remedied infection, but also had hemodynamic and anti-inflammatory properties
  • Stimulation of oxygen metabolism
  • In fungi, O3 inhibits cell growth at certain stages
  • With viruses, the O3 damages the viral capsid and upsets the reproductive cycle by disrupting the virus-to-cell contact with peroxidation.
  • Inactivation of bacteria, viruses, fungi, yeast and protozoa: Ozone therapy disrupts the integrity of the bacterial cell envelope through oxidation of the phospholipids and lipoproteins
  • Activation of the immune system
  • 30 and 55 μg/cc
  • production of interferon and the greatest output of tumor necrosis factor and interleukin-2
  • Mechanism of action of O3 on the human lung
  • cascade of reactions like peroxidation of lipids leading to changes in membrane permeability,[41] lipid ozonation products (LOP) act as signal transducer molecules
  • Dietary antioxidants or free radical scavengers like vitamin E, C, etc., can prevent aforementioned effects of O3
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    Ozone therapy review
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