condition found tbRes List
H2, Hydrogen Gas: Click to Expand ⟱
Features:
Hydrogen Gas, Powerful Antioxidant

1.Antioxidant and Nrf2/ARE Pathway: activate Nrf2, which induces antioxidant enzymes.
2.NF-κB Pathway: reported to inhibit NF-κB activation, thereby reducing inflammatory cytokine production
3.Mitochondrial Apoptosis Pathway
4.MAPK (Mitogen-Activated Protein Kinases) Pathway
5.PI3K/Akt/mTOR Pathway
6.Inflammatory Cytokine Signaling: Reducing cytokines (such as IL-6, TNF-α)
7.p53 Pathway
8.Autophagy Pathways: might regulate autophagy, (dual roles in cancer)

Example unit sometimes used in studies
Example Canadian Supplier

Hydrogen gas can be generated in small amount by hydrogenase of certain members of the human gastrointestinal tract microbiota from unabsorbed carbohydrates in the intestine through degradation and metabolism, which then is partially diffused into blood flow and released and detected in exhaled breath, indicating its potential to serve as a biomarker.

Many studies have shown that H2 therapy can reduce oxidative stress. This, however, contradicts radiation therapy and chemotherapy, in which ROS are required to induce apoptosis and combat cancer. Yet many studies show chemoprotective and radioprotective and some even show chemosentizing
Nevertheless there are some papers claiming ROS ↑ for cancer cells
radioP, RadioProtective: Click to Expand ⟱
Source:
Type:
Protect against the damaging effects of radiation therapy.
Scientific Papers found: Click to Expand⟱
3152- H2,  VitC,  Rad,    Hydrogen and Vitamin C Combination Therapy: A Novel Method of Radioprotection
- in-vitro, Nor, HUVECs - in-vivo, NA, NA
AntiTum↑, Hydrogen also has direct and indirect antitumor effects, which could be useful for the treatment of cancer patients. Hydrogen therapy improves overall survival, quality of life, blood parameters, and tumor reduction.
OS↑,
QoL↑,
TumVol↓,
radioP↑, In addition, hydrogen attenuates the risk of carcinogenesis induced by radiation.
Dose↑, Patients begin hydrogen inhalation 10 minutes prior to vitamin C injection. Patients are treated with high-dose vitamin C injection while inhaling simultaneous hydrogen
Dose↝, patients also performed the hydrogen and vitamin C combination therapy at home on their own as much as possible
eff↑, These results suggest that in normal cells, the combination of 1 mM vitamin C and hydrogen is the most effective radioprotective agent.

2523- H2,    Prospects of molecular hydrogen in cancer prevention and treatment
- Review, Var, NA
ROS↓, previous studies have shown that H2 can selectively scavenge highly toxic reactive oxygen species (ROS) and inhibit various ROS-dependent signaling pathways in cancer cells, thus inhibiting cancer cell proliferation and metastasis.
TumCP↓,
TumMeta↓,
AntiTum↑, Anti-tumor barrier: H2 produced by intestinal flora
GutMicro↑, hydrogen-rich water (HRW) supplementation significantly inhibited the expansion of opportunistic pathogenic E. coli and increased intestinal integrity in mice with colitis
Inflam↓, H2 maintains the integrity of the intestinal barrier, reduces intestinal inflammation and damage in rat
OS↑, inhalation of H2 for 3 h daily significantly prolonged progression-free survival and overall survival in stage IV colon and rectal patients
radioP↑, administration of inhaled H2 during radiotherapy treatment reduced the damage to the hematological and immune systems
selectivity↑, Through these studies, we believe that the ability of H2 to selectively scavenge highly toxic ROS may be the core and fundamental mechanism of its anti-tumor effects, so this paper mainly focuses on this point of discussion.
SOD↑, H2 inhibited ROS expression and increased SOD, IL-1β, IL-8, IL-13, and tumor necrosis factor-α (TNF-α) expression in lung tissue of cancer
IL1β↑,
IL8↑,
TNF-α↑,
neuroP↑, Ono et al. found that 3% H2 inhaled twice daily for 1 h significantly improved vital signs, stroke scale scores, physiotherapy index, and 2-week brain MRI in stroke patients compared with conventional treatment.

2521- H2,    Oxyhydrogen Gas: A Promising Therapeutic Approach for Lung, Breast and Colorectal Cancer
- Review, CRC, NA - Review, Lung, NA - Review, BC, NA
Inflam↑, Oxyhydrogen gas, a mixture of 66% molecular hydrogen (H2) and 33% molecular oxygen (O2) has shown exceptional promise as a novel therapeutic agent due to its ability to modulate oxidative stress, inflammation, and apoptosis.
ROS↓, neutralises reactive oxygen and nitrogen species
ChemoSen↑, enhancing existing treatments and reducing harmful oxidative states in cancer cells. boosting the effectiveness of conventional therapies
p‑PI3K↓, inhibiting the PI3K/Akt phosphorylation cascade.
p‑Akt↓,
QoL↑, Similar results have been observed in breast cancer, where patients reported improved quality of life.
GutMicro↑, improves intestinal microflora dysbiosis.
chemoP↑, reduced oxidative stress and mitigated tissue damage, suggesting its potential as a cytoprotective agent in cancer patients undergoing radiation therapy or chemotherapy
radioP↑,
*NRF2↑, documented role in activating the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway.
*Catalase↑, consequently, hydrogen can enhance the expression of endogenous antioxidant enzymes, including catalase (CAT), glutathione peroxidase (GPx), haem oxygenase (e.g., HO-1), and superoxide dismutase (SOD) [45]
*GPx↑,
*HO-1↑,
*SOD↑,
*TNF-α↓, reducing the expression of proinflammatory mediators such as chemokines (e.g., CXCL15), cytokines (e.g., TNF-α), interleukins (e.g., IL-4, IL-6)
*IL4↓,
*IL6↓,
ChemoSen↑, further research demonstrates that oxyhydrogen gas enhanced the sensitivity of lung cancer cells to chemotherapy drugs, suggesting its potential as an adjuvant therapy
Appetite↑, inhaled oxyhydrogen gas over a minimum of 3 months. The results indicated substantial improvements in appetite, cognition, fatigue, pain, and sleeplessness
cognitive↑,
Pain↓,
Sleep↑,
other?, It is recommended that hydrogen should not exceed 4.6% in air or 4.1% by volume in pure oxygen gas (explosion risk)

2516- H2,    Hydrogen Gas in Cancer Treatment
- Review, Var, NA
*Half-Life↓, Except the thigh muscle required a longer time to saturate, the other organs need 5–10 min to reach Cmax (maximum hydrogen concentration).
*ROS↓, regulate several key players in cancer, including ROS, and certain antioxidant enzymes
*selectivity↑, hydrogen gas could selectively scavenge the most cytotoxic ROS, •OH, as tested in an acute rat model of cerebral ischemia and reperfusion
*SOD↑, the expression of superoxide dismutase (SOD) (48), heme oxyganase-1 (HO-1) (49), as well as nuclear factor erythroid 2-related factor 2 (Nrf2) (50), increased significantly, strengthening its potential in eliminating ROS.
*HO-1↑,
*NRF2↑,
*chemoP↑, reduce the adverse effects in cancer treatment while at the same time doesn't abrogate the cytotoxicity of other therapy, such as radiotherapy and chemotherapy
*radioP↑,
ROS↑, Interestingly, due the over-produced ROS in cancer cells (38), the administration of hydrogen gas may lower the ROS level at the beginning, but it provokes much more ROS production as a result of compensation effect, leading to the killing of cancer
*Inflam↓, By regulating inflammation, hydrogen gas can prevent tumor formation, progression, as well as reduce the side effects caused by chemotherapy/radiotherapy
eff↑, More importantly, hydrogen-rich water didn't impair the overall anti-tumor effects of gefitinib both in vitro and in vivo, while in contrast, it antagonized the weight loss induced by gefitinib and naphthalene, and enhanced the overall survival rate
*TNF-α↓, hydrogen-rich saline treatment exerted its protective effects via inhibiting the inflammatory TNF-α/IL-6 pathway, increasing the cleaved C8 expression and Bcl-2/Bax ratio, and attenuating cell apoptosis in both heart and liver tissue
*IL6↓,
*cl‑Casp8↑,
*Bax:Bcl2↓,
*Apoptosis↓,
*cardioP↑,
*hepatoP↑,
*RenoP↑, Hydrogen-rich water also showed renal protective effect against cisplatin-induced nephrotoxicity in rats.
*chemoP↑, nother study showed that both inhaling hydrogen gas (1% hydrogen in air) and drinking hydrogen-rich water (0.8 mM hydrogen in water) could reverse the mortality, and body-weight loss caused by cisplatin via its anti-oxidant property
eff↝, More importantly, hydrogen didn't impair the anti-tumor activity of cisplatin against cancer cell lines in vitro and in tumor-bearing mice
chemoP↑, hydrogen-rich water combinational treatment group exhibited no differences in liver function during the treatment, probably due to its antioxidant activity, indicating it a promising protective agent to alleviate the mFOLFOX6-related liver injury
radioP↑, consumption of hydrogen-rich water reduced the radiation-induced oxidative stress while at the same time didn't compromise anti-tumor effect of radiotherapy
eff↑, Hydrogen Gas Acts Synergistically With Thermal Therapy
TumCG↓, in vivo study showed that under hydrogen gas treatment, tumor growth was significantly inhibited, as well as the expression of Ki-67, VEGF and SMC3
Ki-67↓,
VEGF↓,
selectivity↑, H2-silica could concentration-dependently inhibit the cell viability of human esophageal squamous cell carcinoma (KYSE-70) cells, while it need higher dose to suppress normal human esophageal epithelial cells (HEEpiCs), indicating its selective profi


* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 4

Results for Effect on Cancer/Diseased Cells:
p‑Akt↓,1,   AntiTum↑,2,   Appetite↑,1,   chemoP↑,2,   ChemoSen↑,2,   cognitive↑,1,   Dose↑,1,   Dose↝,1,   eff↑,3,   eff↝,1,   GutMicro↑,2,   IL1β↑,1,   IL8↑,1,   Inflam↓,1,   Inflam↑,1,   Ki-67↓,1,   neuroP↑,1,   OS↑,2,   other?,1,   Pain↓,1,   p‑PI3K↓,1,   QoL↑,2,   radioP↑,4,   ROS↓,2,   ROS↑,1,   selectivity↑,2,   Sleep↑,1,   SOD↑,1,   TNF-α↑,1,   TumCG↓,1,   TumCP↓,1,   TumMeta↓,1,   TumVol↓,1,   VEGF↓,1,  
Total Targets: 34

Results for Effect on Normal Cells:
Apoptosis↓,1,   Bax:Bcl2↓,1,   cardioP↑,1,   cl‑Casp8↑,1,   Catalase↑,1,   chemoP↑,2,   GPx↑,1,   Half-Life↓,1,   hepatoP↑,1,   HO-1↑,2,   IL4↓,1,   IL6↓,2,   Inflam↓,1,   NRF2↑,2,   radioP↑,1,   RenoP↑,1,   ROS↓,1,   selectivity↑,1,   SOD↑,2,   TNF-α↓,2,  
Total Targets: 20

Scientific Paper Hit Count for: radioP, RadioProtective
4 Hydrogen Gas
1 Vitamin C (Ascorbic Acid)
1 Radiotherapy/Radiation
Filter Conditions: Pro/AntiFlg:%  IllCat:%  CanType:%  Cells:%  prod#:295  Target#:1185  State#:%  Dir#:%
  wNotes=on  sortOrder:rid,rpid

 

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