Pulmonary vascular disease is defined as a condition of blood
flow to the lung’s artery is blocked suddenly due to a blood clot
somewhere in the body, including pulmonary embolism, chronic
thromboembolic disease, pulmonary arterial hypertension, pulmonary
veno-occlusive disease, pulmonary arteriovenous malformations, pulmonary
edema, etc.
Pulmonary veno-occlusive disease
Pulmonary
veno-occlusive disease (PVOD) is an extremely rare form of pulmonary
hypertension, affecting mostly in children and young adults as a result
of a progressive obstruction of small pulmonary veins that leads to elevation in pulmonary vascular resistance and right ventricular failure.
V. Preventions
Since patients with are at high risk of hemoptysis,
using the below preventive diet and phytochemicals and antioxidant
should be taken with care and only with the related field specialists
1. Dietary nitrate
According
to the study by the Queen Mary University of London, dietary
nitrate (vegetables, fruit, and processed meats) and to a lesser extent
dietary nitrite, elicit pulmonary dilatation, prevent pulmonary vascular remodeling,
and reduce the right ventricular hypertrophy characteristic of PH.
This favorable pharmacodynamic profile depends on endothelial NO
synthase and xanthine oxidoreductase -catalyzed reduction of nitrite to
NO. Exploitation of this mechanism (ie, dietary nitrate/nitrite
supplementation) represents a viable, orally active therapy for PH(40).
2. Fish oil
In the study of the effects of dietary polyunsaturated fats on chronic hypoxic pulmonary
hypertension were assessed in rats fed fish oil, corn oil, or a lower
fat, “high-carbohydrate” diet (regular) beginning 1 mo before the start
of hypoxia (0.4 atm, n = 30 for each), showed that fish oil diet
increased lung eicosapentaenoic acid 50-fold and depleted lung arachidonic acid 60% (P less than 0.0001 for each). Lung
thromboxane B2 and 6-ketoprostaglandin F1 alpha levels were lower, and
platelet aggregation, in response to collagen, was reduced in rats fed
fish oil. Chronically hypoxic rats fed fish oil had lower mortality
rates than the other hypoxic rats. They also had lower blood viscosity, as well as less right ventricular hypertrophy and less peripheral extension of vascular smooth muscle to intra-acinar pulmonary arteries (P less than 0.05 for each). The mechanism by which dietary fish oil decreases pulmonary hypertension and vascular remodeling during chronic hypoxia remains uncertain(41).
3. Dietary phytoestrogens
In the study totest the hypothesis that phytoestrogenic compounds in the diet
contributed to the female cardioprotectionfour groups of female rats
were studied: sham-operated (Sham) and fistula (Fist) rats fed a diet
with [P(+)] or without [P(-)] phytoestrogens. Eight weeks postfistula,
systolic and diastolic cardiac function was assessed by using a blood-perfused, isolated heart preparation. High-phytoestrogen diet had no effect on body, heart, and lung weights, or cardiac function in Sham rats., showed that hypothesized that phytoestrogenic compounds in the diet contributed to the female cardioprotection(42). Chinese Secrets To Fatty Liver And Obesity Reversal
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Sources
(40) http://lib.bioinfo.pl/paper:21968645
(41) http://www.ncbi.nlm.nih.gov/pubmed/2732158
(42) http://www.ncbi.nlm.nih.gov/pubmed/15961607
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