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Nathan Goodyear

Intravenously administered vitamin C as cancer therapy: three cases - 0 views

www.canadianmedicaljournal.ca/...937.short

IV intravenous vitamin C mineral therapy treatment cancer

shared by Nathan Goodyear on 22 Nov 11 - No Cached
  • Nathan Goodyear on 22 Nov 11
     
    high dose IV vitamin C shown to be of benefit in cancer treatment therapies.
Nathan Goodyear

Pathways | PPAR Resource Page | Jack Vanden Heuvel - 0 views

ppar.cas.psu.edu/pathways.html

PPAR PPARs inflammation

shared by Nathan Goodyear on 11 Jun 12 - No Cached
  • Nathan Goodyear on 11 Jun 12
     
    great website as a resource to review PPAR pathways.  PPARs are transcription factors involved with inflammation.
Nathan Goodyear

Curcumin-induced Apoptosis of Human Colon Cancer Colo 205 Cells through the Production ... - 0 views

ar.iiarjournals.org/...4379.short

colon colon cancer cancer curcumin tumeric

shared by Nathan Goodyear on 22 Jan 14 - No Cached
  • Nathan Goodyear on 22 Jan 14
     
    Curcumin found to induce apoptosis, cell death, of colon cancer cells.
Nathan Goodyear

Progesterone metabolites regulate induction, growth, and suppression of estrogen- and p... - 0 views

www.ncbi.nlm.nih.gov/...PMC3706910

progesterone metabolites metabolite 5-alpha pregnene 5-alpha pregnenes 5alpha-dihydroprogesterone 4-pregnene 4-pregnenes 3alpha-dihydroprogesterone breast cancer ER PR hormone hormones receptors estrogen

shared by Nathan Goodyear on 28 Jan 14 - No Cached
  • in vitro studies had shown that the progesterone metabolites, 5α-dihydroprogesterone (5αP) and 3α-dihydroprogesterone (3αHP), respectively, exhibit procancer and anticancer effects on receptor-negative human breast cell lines
  • Onset and growth of ER/PR-negative human breast cell tumors were significantly stimulated by 5αP and inhibited by 3αHP
  • When both hormones were applied simultaneously, the stimulatory effects of 5αP were abrogated by the inhibitory effects of 3αHP and vice versa
  • ...31 more annotations...
  • Treatment with 3αHP subsequent to 5αP-induced tumor initiation resulted in suppression of further tumorigenesis and regression of existing tumors
  • Tumorigenesis of ER/PR-negative breast cells is significantly enhanced by 5αP and suppressed by 3αHP, the outcome depending on the relative concentrations of these two hormones in the microenvironment in the breast regions
  • The findings show that the production of 5αP greatly exceeds that of 3αHP in ER/PR-negative tumors and that treatment with 3αHP can effectively block tumorigenesis and cause existing tumors to regress
  • hypothesis that a high 3αHP-to-5αP concentration ratio in the microenvironment may foster normalcy in noncancerous breast regions.
  • a large proportion (about 30% to 60%) of breast tumors are ER and/or PR negative
  • about 90% of normal proliferating breast epithelial cells are receptor negative
  • Our previous in vitro studies had shown that breast tissues and cell lines readily convert progesterone to 5α-pregnanes, such as 5αP, and delta-4-pregnenes, such as 3αHP (Figure ​(Figure1),1), and that tumorous breast tissues [15] and tumorigenic breast cell lines [16] produce higher levels of 5αP and lower levels of 3αHP than do normal breast tissues and nontumorigenic cell lines
  • The progesterone metabolism studies suggested that increases in 5αP and decreases in 3αHP production accompany the shift toward breast cell neoplasia and tumorigenicity
  • In vitro studies on five different human breast cell lines showed that cell proliferation and detachment are significantly increased by 5αP and decreased by 3αHP
  • the prevailing theory of hormonal regulation of breast cancer, as well as hormone-based therapies, revolves around estrogen and/or progesterone and ER/PR-positive breast cells and tumors.
  • Not only do these "receptor-negative" breast cancers fail to benefit from current hormonal therapies, but they also generally exhibit more-aggressive biologic behaviors and poorer prognosis than the receptor-positive ones
  • The results of the studies reported here show for the first time that the progesterone metabolites, 5αP and 3αHP, act as hormones that regulate ER/PR-negative breast tumor formation, growth, and regression
  • The onset of the ER/PR-negative human breast cell tumors in mice was considerably accelerated, and the growth significantly stimulated, by just one or two applications of 5αP
  • In contrast, 3αHP retarded onset of tumor formation, suppressed tumor growth, and inhibited or regressed existing 5αP-induced tumors
  • When both hormones were administered simultaneously, the effects of one were abrogated by the effects of the other.
  • The 5αPR and 3αHPR (which are associated with the plasma membranes of both ER/PR-positive [19] and ER/PR-negative [29] cells) are distinct from each other and from known ER, PR, androgen, and corticosteroid receptors, and lack affinity for other steroids, such as progesterone, estrogen, androgens, corticosteroids, and other progesterone metabolites
  • Levels of 5αPR are upregulated by 5αP itself and estradiol, and downregulated by 3αHP in both ER/PR-positive and -negative cells
  • ndications are that 5αP acts via the surface receptor-linked mitogen-activated protein kinase (MAPK; Erk1/2) pathway; 5αP significantly stimulates activation of Erk1/2 [30], increases the Bcl-2/Bax expression ratio [18] and actin depolymerization [31], and decreases expression of actin and adhesion plaque-associated vinculin [31], resulting in decreased apoptosis and increased mitosis and cell detachment
  • 3αHP appears to suppress protein kinase C (PKC), phospholipase C (PLC), Ca2+ mobilization (unpublished observations), and the Bcl-2/Bax expression ratio [18], and increases expression of the cell-cycle inhibitor p21 [18], resulting in increased apoptosis and decreased proliferation and detachment of breast cell lines.
  • serum from mice with tumors had significantly more 5αP than 3αHP
  • the tumors, which on average had about threefold higher concentrations of 5αP than the respective sera, and >10-fold higher 5αP than 3αHP levels
  • Previous in vitro metabolism studies showed that human breast tumor tissues convert significantly more progesterone to 5α-pregnanes like 5αP and less to 4-pregnenes like 3αHP than do paired normal (nontumorous) tissues
  • Similar differences in progesterone metabolism and enzyme gene expressions were observed between tumorigenic and nontumorigenic breast cell lines
  • breast carcinomas are able to synthesize progesterone
  • The current findings, along with the previous in vitro studies, suggest that the relative concentrations of 5αP and 3αHP in the breast microenvironment constitute important autocrine/paracrine determinants not only for tumorigenesis but also for potential regression of tumors and the maintenance of normalcy of ER/PR-negative breast cells/tissues.
  • Evidence presented here shows that a high concentration of 5αP, relative to 3αHP in the microenvironment, promotes initiation and growth of tumors, whereas a higher concentration of 3αHP, relative to 5αP, suppresses tumorigenesis and promotes normalcy
  • 5α-reductase and 5αPR levels are upregulated by 5αP
  • in the 3αHP-treated mice, the elevated 3αHP levels, relative to 5αP, in the microenvironment could have opposed progression to xenograft neoplasia by its inherent anticancer actions and the suppression of 5αP synthesis and 5αPR expression
  • the opposing actions of the progesterone metabolites also appear to exert some control over the estrogen-regulated effects on breast cancer by their ability to modulate ER numbers in ER-positive cells
  • because both ER/PR-negative and ER/PR-positive, as well as normal and tumorigenic human breast cell lines, have been shown to respond to 5αP and 3αHP in vitro, it is suggested that these endogenously produced progesterone metabolites may also play regulatory hormonal roles in ER/PR-positive breast cancers, as well as in the maintenance of normalcy in nontumorous breast tissues.
  • The in vivo data provide further evidence that progesterone metabolites, such as 5αP and 3αHP, deserve to be considered as active hormones in their own right, rather than inactive waste products
  • Nathan Goodyear on 28 Jan 14
     
    Progesterone metabolites and breast cancer
Nathan Goodyear

Gut microbiota of healthy Canadian infants: profiles by mode of delivery and infant die... - 0 views

www.cmaj.ca/385

gut flora dysbiosis microbiota Cesarean delivery C_S breast feeding children pediatrics infants

shared by Nathan Goodyear on 17 Feb 14 - No Cached
  • Nathan Goodyear on 17 Feb 14
     
    Cesarean delivery and lack of breast feeding significantly alter gut flora.  This has potential significant metabolic consequences--diabetes, asthma, obesity...The urge to deliver at convenient times may lay the foundation for our metabolic crisis in the US.
Nathan Goodyear

Monsanto Roundup: The Impacts of Glyphosate Herbicide on Human Health. Pathways to Mode... - 0 views

www.globalresearch.ca/...5342520

monsanto roundup glyphosate

shared by Nathan Goodyear on 12 Aug 13 - No Cached
  • Nathan Goodyear on 12 Aug 13
     
    Glyphosate inhibits CYP 450 enzymes.  The author states it well: "glyphosate enhances the damaging effects fo other food borne chemical residues and environnmental toxins.  Additionally, Glyphosate disrupts gut bacterial function in the human gut. This dysbiosis is well known to cause systemic disease, such as obesity, diabetes...
Nathan Goodyear

Analysis of Relations between serum levels of Epitestosterone, Estradiol, Testosterone,... - 0 views

www.biomed.cas.cz/...49_S113.pdf

PSA hormone hormones BPH Prostate cancer prostate cancer Epitestosterone men male aromatase Estradiol IGF-1

shared by Nathan Goodyear on 21 Aug 13 - No Cached
  • Nathan Goodyear on 21 Aug 13
     
    Great confusion exists in the medical profession about Testosterone and PSA and the health of the prostate. The conversion of Estrogen, whether E2 or E1, and other variables are responsible for increases in PSA while on Testosterone therapy. This study points out that Estradiol in men stimulates cell line growth of prostate cancer. In contrast, Epitestosterone, an androgen metabolite, has antiandrogen, inhibits this estrogen activity. Epitestosterone exists in an inverse relationship to Estradiol and IGF-1.
Nathan Goodyear

Intravenously administered vitamin C as cancer therapy: three cases - 0 views

www.cmaj.ca/...937.full.pdf+html

IV vitamin C IV intravenous vitamin C cancer

shared by Nathan Goodyear on 25 Sep 13 - No Cached
  • Nathan Goodyear on 25 Sep 13
     
    3 case studies on high dose IV vitamin C in cancer treatment.
Nathan Goodyear

The association of vitamins C and K3 kills ca... [Eur J Med Chem. 2003] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...12767595

IV vitamin C IV vitamin K3 vitamin C K K3 vitamin C vitamin K3 cancer autoschizis

shared by Nathan Goodyear on 16 Oct 13 - No Cached
  • Nathan Goodyear on 16 Oct 13
     
    IV vitamin C and K3 show synergistic cancer cell death via autoschizis.
Nathan Goodyear

Expression of aromatase, androgen and estrogen receptors in peripheral target tissues i... - 0 views

pubmedcentralcanada.ca/...PMC2891268

diabetes aromatase estrogen ER alpha ER-alpha AR

shared by Nathan Goodyear on 13 May 14 - No Cached
  • Nathan Goodyear on 13 May 14
     
    Interesting animal study found that diabetic animals associated with increased aromatase expression in adrenal cortex, kidneys, and other tissue, androgen receptors were decreased in adrenal glands, and ER-alpha expression in the kidneys was increased by 159%.
sumibeauty10

Eyebrow threading in mountain view | Threading eyebrows | Sumi Beauty - 0 views

www.sumibeauty.com/eyebrow-threading.html

Threading eyebrows

shared by sumibeauty10 on 24 Sep 15 - No Cached
  • sumibeauty10 on 24 Sep 15
     
    Sumi has more than ten years of experience on shaping eyebrow by threading in Mountain View and Cupertino CA Threading eyebrows.
Nathan Goodyear

Hypocalcemia - 0 views

www.cfp.ca/158.full

liver disease cirrhosis hypocalcemia calcium

shared by Nathan Goodyear on 05 Oct 15 - No Cached
  • Nathan Goodyear on 05 Oct 15
     
    liver failure is associated with hypocalcemia.
Nathan Goodyear

Progestin effects on growth in the human breast ca... [Biochem Biophys Res Commun. 1987... - 0 views

www.ncbi.nlm.nih.gov/...3593365

progestins breast cancer

shared by Nathan Goodyear on 04 Nov 10 - No Cached
  • Nathan Goodyear on 04 Nov 10
     
    Progestin effects on growth in the human breast cancer cell line T-47D--possible therapeutic implications.
Nathan Goodyear

Intravenously administered vitamin C as cancer therapy: three cases -- Padayatty et al.... - 0 views

www.cmaj.ca/...937

intravenously vitamin C cancer

shared by Nathan Goodyear on 09 Feb 11 - Cached
  • high-dose vitamin C, given by intravenous and oral routes, may improve symptoms and prolong life in patients with terminal cancer
  • Nathan Goodyear on 09 Feb 11
     
    High-dose IV vitamin C benefits cancer patients:review of 3 case studies
Nathan Goodyear

Oxycodone Plus Ultra-Low-Dose Naltrexone Attenuates Neuropathic Pain and Asso... - 0 views

www.jpain.org/...abstract

naltrexone pain control

shared by Nathan Goodyear on 19 May 11 - No Cached
  • The antihyperalgesic and antiallodynic effects of oxycodone plus ultra-low-dose NTX (Oxytrex, Pain Therapeutics, Inc., San Mateo, CA) suggest a promising new treatment for neuropathic pain.
  • Nathan Goodyear on 19 May 11
     
    low dose naltrexone plus opiate therapy improves neuropathic pain
Nathan Goodyear

Effect of Screening on Ovarian Cancer Mortality, June 8, 2011, Buys et al. 305 (22): 22... - 0 views

jama.ama-assn.org/...2295.full

ovarian cancer screening mortality

shared by Nathan Goodyear on 09 Jun 11 - No Cached
  • Among women in the general US population, simultaneous screening with CA-125 and transvaginal ultrasound compared with usual care did not reduce ovarian cancer mortality
  • Nathan Goodyear on 09 Jun 11
     
    Ovarian Cancer screening provides no benefit
Nathan Goodyear

Do urinary oestrogen metabolites predict breast ca... [Br J Cancer. 1998] - PubMed result - 0 views

www.ncbi.nlm.nih.gov/...9820189

estrogen metabolism breast cancer 2:16alpha-OHE1

shared by Nathan Goodyear on 23 Aug 11 - No Cached
  • post-menopausal (but not premenopausal) women at baseline who went on to develop breast cancer showed about a 15% lower 2:16alpha-OHE1 ratio than matched control subjects
  • Nathan Goodyear on 23 Aug 11
     
    can the pathway of estrogen metabolism help to predict postmenopausal breast cancer?  according to this study, yes.
Nathan Goodyear

Andropause. Testosterone replacement therapy for aging men. - 0 views

www.cfp.ca/91.short

low T Testosterone anemia men male aging

shared by Nathan Goodyear on 01 Sep 11 - No Cached
  • Nathan Goodyear on 01 Sep 11
     
    always think low Testosterone with men with anemia
Nathan Goodyear

Marathons damage the hearts of less fit runners for up to three months - - Heart and St... - 0 views

www.heartandstroke.nb.ca/...content2.aspx

endurance training running runners marathon marathons heart health CVD exercise

shared by Nathan Goodyear on 09 Jan 15 - No Cached
  • Nathan Goodyear on 09 Jan 15
     
    Summary of 2010 report on marathons and the heart.  Less fit runners can do significant damage to the heart i.e. fibrosis compared to fit runners.  V02 max is a good way to assess aerobic endurance and differentiate between the two.  Dr Larose showed via MRI that it can take 3 months for the heart to recover.
Nathan Goodyear

Urinary estrogen metabolites in women at high risk for breast cancer - 0 views

carcin.oxfordjournals.org/...1532.full

breast cancer CA estrogen metabolism 2:16 OHE 2-OH-estrone 16-alpha-OH-estrone

shared by Nathan Goodyear on 10 May 12 - No Cached
  • obesity has also been linked to preferential estrogen metabolism via the 16-alpha-hydroxylation pathway; thus, a prediction of the mechanism by which obesity could increase breast cancer risk would be through a lowering of the 2:16 ratio in favor of the 16 pathway
  • increased BMI was associated with a lower 2:16 OHE ratio
  • Our data show a significant association between alcohol use, defined as at least one drink per day or an average of seven per week, and 2:16 OHE ratio
  • ...10 more annotations...
  • An alcohol-induced rise in estrogens as a consequence of alcohol catabolism in the liver has been reported
  • The only study that looked at the association between alcohol and wine consumption in healthy women did not report a clear association
  • smoking has been reported to increase induction of the 2-hydroxylation metabolic pathway (24). However, the few epidemiological studies conducted on healthy women showed no difference in estrogen metabolites with smoking status (22) or smoking dose (20), in line with our findings.
  • Family history of a first-degree family member with breast cancer confers a 2- to 4-fold risk of developing breast cancer
  • 16% of breast cancers are due to unidentified hereditary factors
  • Estrogen metabolism occurs through enzymes whose activity is determined by the presence of specific genetic polymorphisms, thus can be defined as unique to each individual.
  • the metabolism is also influenced by a number of environmental factors, which change over a lifetime
  • significantly lower 2:16 OHE ratio in women who have known breast cancer risk factors compared with healthy women
  • There was an additional significant association specifically with BMI and alcohol use, which also supports the evidence that these factors affect estrogen metabolism
  • Profiling estrogen metabolites may identify women who are more likely to develop breast cancer within a population of women with known risk factors
  • Nathan Goodyear on 10 May 12
     
    urinary estrogen metabolites shown to provide insight into breast cancer risk.  This study suggested that a low 2:16 OHE ratio increase breast cancer risk.
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