Posted 8/29/2022 4:27 PM (GMT 0)
Thought I'd post this as I just came across this info. Anyone else have any info about low vegf and how to raise the vegf levels pls?
Low VEGF in CIRS (Biotoxin Illness)
Dr. Ritchie Shoemaker found in his research that his CIRS patients often had low VEGF leading to levels less than 31. This was induced by high cytokine levels. He found they needed to keep their VEGF in the range of 31-86.
People with biotoxin illness such as those who have CIRS due to water-damaged building, will generally have low VEGF if they are extremely sick. Initially, the VEGF will rise due to tissue hypoperfusion. It is activated by hypoxia inducible factor (HIF). TGF beta-1 will also be induced by HIF and as it rises,TGF beta-1 will lower the VEGF level. Folks with CIRS due to water-damaged building have high TGF beta-1 generally.
Research has shown that the mycotoxin called fumagillin from Aspergillus fumigatus inhibits multiple key angiogenic mediators. VEGF is one of them. This leads to tissue hypoxia which can be reversed by VEGF introduction. Researchers have created a fumagillin analog named Lodamin which is one of the most potent and broad-spectrum antiangiogenesis inhibitors. It's action on VEGF (inhibits VEGF induced angiogenesis by 41%) and basic fibroblast growth factor (inhibits VEGF induced angiogenesis by 31%). This shows just how potent a mycotoxin or mycotoxin analog can be in inhibiting angiogenesis.
What is happening in CIRS when there is low VEGF
Basically, you end up with decreased delivery of nutrients and oxygen via the capillaries.
Three is low capillary hypoperfusion so you have a reduced delivery of O2 which leads to a reduced mitochondrial function and a rise of lactate.
These people can not exercise. They will crash due to the lack of oxygen to the capillary beds. It appears they are not efficiently burning glucose. They turn to glycogen and soon run out of glycogen reserves. When their glycogen is used up it takes a couple days to build it back up again and this is why they get "post exertional fatigue" that lasts for a couple days. The capillary hypoperfusion and lack of oxygen can also lead to cognitive dysfunction and constant aching.
If they push themselves they will end up using fat reserves, but if they are leptin resistant, (Also due to the cytokine responses) they won't be able to burn the fatty acids directly. They will then turn to burning protein. These folks will say they are getting fat even though they are eating less and exercising as much as they can.
The person has a low VO2 max on pulmonary stress tests. Many have a VO2 of less than 20 if they are severely ill. The way to correct VO2 max in the CIRS patient is by raising their VEGF level to normal range. Using procrit and VIP can increase the VO2 to 40-50 in a couple weeks.
Normalizing VEGF in CIRS
First realize you would not want to raise VEGF if it is already high. You also would need to discuss this with an oncologist if you are treating a patient who has cancer and CIRS. High VEGF can promote some cancers.
Most research examines lowering VEGF as a treatment for abnormally high VEGF with certain types of cancers. There is an increasing body of research regarding raising VEGF to treat hypoxic brain and cardiovascular issues. There is less information on raising VEGF with nutrients or herbs. I actually suggest you work on lowering TGF beta-1 which will end up helping to lower VEGF. (You may note that many of the herbs and nutrients that lower TGF beta-1 are used to lower VEGF when it is high. Please realize that many of the nutrients and herbs do not act as drugs do. They often have amphoteric activity and may actually cause opposing things to happen in the body at different times.)
High TGF beta-1 will lower VEGF, so one approach is to focus on lowering TGF beta-1 into normal limits. This should also raise the VEGF into normal limits.
What will Normalize Low VEGF
Fish Oil
Omega 3 fatty acids 2.4 grams EPA and 1.8 grams DHEA per day. Although there is research showing increased VEGF and angiogenesis in an ischemic condition with an enhanced fish oil diet, there is research showing it lowers VEGF and is antiangiogenic also. This is another situation where we see amphoteric activity.
Low Amylose Diet as created by Dr. Ritchie Shoemaker.
Keeps insulin in control as insulin will increase inflammatory cytokines. Eat at least 6 ounces of protein each day and at least 3 servings of above ground vegetables and fruit every day. No simple sugars, maltodextrins, and corn syrup, no grains such as rice, wheat, rye, barley and oats, no bananas, no underground veggies except onions and garlic, – no nuts other than walnuts and almonds) can eat all fruit except bananas, all above ground veggies and meat.
Scutellaria baicalensis root and Baicalin
Scutellaria baicalensis root and it's constituent called baicalin have been found to raise VEGF expression through the activation of the ERRα pathway. In vitro work, but looks good. Especially interesting when you take into account this herb is used for strokes traditionally.
Although baicalin can induce angiogenesis by stimulating VEGF expression, it has been previously shown to inhibit angiogenesis by suppressing endothelial cell proliferation, migration, and tube formation in vitro, as well as vessel formation in chicken chorioallantoic membrane.This study was focused on the effect of baicalin on endothelial cells, whereas the VEGF study was focused on the effect of baicalin on VEGF expression, a different aspect in regulating angiogenesis. It is possible that baicalin has both pro-angiogenesis (via elevating VEGF expression as shown in one study) and anti-angiogenesis (via suppressing endothelial cell function as shown in this study) activities.
Resveratrol
Resveratrol shows increased VEGF levels in vitro and in vivo (rats). At low dosage (2 ng/mL), resveratrol induces angiogenic actions, whereas at higher dosages (1.2 mg/L), it can inhibit cell survival and angiogenic pathways. Furthermore, pharmacokinetics, bioavailability and metabolism likely play a critical role in appropriate delivery strategies to produce appropriate therapeutic outcomes. Specifically, oral administration leads to rapid absorption to plasma, liver, kidney and heart.
Astragalus
Astragalus has been shown to promote angiogenesis and induces VEGF expression.
Curcumin
Curcumin (From tumeric) Several studies have highlighted the pro-angiogenic properties of curcumin by both oral and topical application. Specifically, serum-free curcumin application showed significant up-regulation of VEGF. Additionally, Kiran and colleagues showed significant capillary network formation in HUVEC and RAEC cultures, vessel sprouting in aortic ring assays, and increased vascular density in CAM assays in response to curcumin treatment. Supplementation of curcumin along with serum caused down-regulation of VEGF. So this suggests a different response depending on extracellular microenvironment.
Erythropoetin
Erythropoetin has been shown in various research to elevate VEGF and Dr. Shoemaker has used Procrit to raise VEGF. Additionally, patients who go to high altitudes will also find it raises their low VEGF levels.
Vasoactive Intestinal Polypeptide(VIP)
Vasoactive Intestinal Polypeptide(VIP) has also been shown to raise VEGF in research by Dr. Ritchie Shoemaker.
Catechins
Catechins such as EGCG have been reported to both inhibit and stimulate VEGF expression.
Quercetin
Quercetin has been shown to induce VEGF expression through increasing HIF-1α expression.
47 crude plant extracts were tested in a CAM assay and in vitro bovine aortic endothelial cell (BAEC) proliferation assays. Of these, 24 demonstrated angiogenic properties with Epimedium sagittatum, Trichosanthes kirilowii and Dalbergia odorifera performing the strongest in both CAM and BAEC models. These may be acting as stimulants to VEGF.
A few more scientific details on VEGF
VEGF expression is induced by growth factors, oncogenes, and hypoxia. The key regulator of VEGF expression in response to hypoxia is hypoxia-inducible factor-1. Levels of HIF-1α expression are determined by the rates of protein synthesis (regulated via an oxygen-independent mechanism) and protein degradation (regulated via an oxygen-dependent mechanism). HIF-1 activates VEGF transcription by binding to the hypoxia response element (HRE) in the VEGF promoter. In addition to HRE, multiple transcription factor-binding sites, including ERR, AP-1, Sp-1, Stat3, and CREB, have been identified within the VEGF promoter.
Studies have found that peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) is a potent ligand-independent coactivator that interacts with ERRα and also a major regulator of mitochondrial function in response to exercise and other stimuli. Through the activation of ERR-α, PGC-1α has been shown to powerfully induce VEGF expression and angiogenesis in cultured muscle cells and skeletal muscle in vivo, as well as in breast cancer cells, in an HIF-1α independent pathway.
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