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Organoselenium and organotellurium chemistry
Research Guide
What is Organoselenium and organotellurium chemistry?
Organoselenium and organotellurium chemistry is the study of the toxicology, pharmacology, and chemical properties of organic compounds containing selenium or tellurium, including their roles as antioxidants, glutathione peroxidase mimetics, and therapeutic agents.
This field encompasses 20,866 published works on the synthesis, catalytic reactions, and biological pathways of organoselenium and organotellurium compounds. Key areas include their antioxidant activity and chemopreventive properties, as explored in foundational reviews. Growth data over the past five years is not available.
Topic Hierarchy
Research Sub-Topics
Glutathione Peroxidase Mimetics
This sub-topic investigates synthetic organoselenium compounds like ebselen that mimic glutathione peroxidase enzyme activity. Researchers study their catalytic mechanisms, kinetics, and therapeutic potential against oxidative stress.
Organoselenium Antioxidants
This sub-topic covers synthesis, structure-activity relationships, and biological evaluation of organoselenium-based antioxidants. Researchers explore their reactivity with peroxides and efficacy in cellular models.
Organoselenium Toxicology
This sub-topic examines toxicity profiles, metabolism, and structure-toxicity relationships of organoselenium compounds. Researchers investigate genotoxicity, hepatotoxicity, and safe dosing for therapeutic applications.
Organotellurium Chemistry
This sub-topic focuses on synthesis, reactivity, and catalytic applications of organotellurium reagents. Researchers study GPx-mimetic activity, redox cycling, and comparisons with selenium analogs.
Chemopreventive Organoselenium Compounds
This sub-topic explores anticancer mechanisms, Phase II enzyme induction, and clinical trials of organoselenium agents. Researchers investigate apoptosis induction and tumor prevention in animal models.
Why It Matters
Organoselenium compounds like ebselen mimic glutathione peroxidase to detoxify hydrogen peroxide, offering protection against oxidative stress in neurological disorders. Nogueira et al. (2004) in "Organoselenium and Organotellurium Compounds: Toxicology and Pharmacology" detail how these compounds reduce toxicity from agents such as malonate and 1-methyl-4-phenyl-1,2,5,6-tetrahydropyridine in glutathione peroxidase-deficient mice, as supported by Klivényi et al. (2000). Mugesh et al. (2001) in "Chemistry of Biologically Important Synthetic Organoselenium Compounds" highlight applications in pharmacology, including synthetic antioxidants for therapeutic use, with 1639 citations underscoring their impact in toxicology and drug development.
Reading Guide
Where to Start
"Organoselenium and Organotellurium Compounds: Toxicology and Pharmacology" by Nogueira et al. (2004), as it provides a broad foundation on toxicology, pharmacology, and key compounds like ebselen, with 1862 citations.
Key Papers Explained
Nogueira et al. (2004) in "Organoselenium and Organotellurium Compounds: Toxicology and Pharmacology" establishes toxicological frameworks, which Mugesh et al. (2001) in "Chemistry of Biologically Important Synthetic Organoselenium Compounds" builds upon by detailing synthetic biology-focused compounds. Flohé et al. (1973) in "Glutathione peroxidase: A selenoenzyme" provides the enzymatic basis that Klivényi et al. (2000) apply to neurotoxin studies in deficient models. Patai and Rappoport (1994) in "The Chemistry of Organic Selenium and Tellurium Compounds" offers synthesis methods connecting to all prior works.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Current frontiers emphasize glutathione peroxidase mimetics for neuroprotection, as in Klivényi et al. (2000), and synthetic antioxidant design from Mugesh et al. (2001). No recent preprints or news available, so focus remains on established catalytic and chemopreventive applications.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Organoselenium and Organotellurium Compounds: Toxicology and ... | 2004 | Chemical Reviews | 1.9K | ✕ |
| 2 | Van der Waals Radii of Elements | 2001 | Inorganic Materials | 1.8K | ✕ |
| 3 | Chemistry of Biologically Important Synthetic Organoselenium C... | 2001 | Chemical Reviews | 1.6K | ✕ |
| 4 | Self-Consistent Orbitals for Radicals | 1954 | The Journal of Chemica... | 1.6K | ✓ |
| 5 | Glutathione peroxidase: A selenoenzyme | 1973 | FEBS Letters | 1.4K | ✓ |
| 6 | Organohalogen compounds | 1995 | Environmental Science ... | 1.1K | ✕ |
| 7 | Mice Deficient in Cellular Glutathione Peroxidase Show Increas... | 2000 | Journal of Neuroscience | 1.1K | ✓ |
| 8 | Selenomethionyl proteins produced for analysis by multiwavelen... | 1990 | The EMBO Journal | 1.0K | ✓ |
| 9 | The glutathione peroxidases | 2001 | Cellular and Molecular... | 928 | ✓ |
| 10 | The Chemistry of Organic Selenium and Tellurium Compounds | 1994 | Medical Entomology and... | 924 | ✕ |
Frequently Asked Questions
What are the main biological roles of organoselenium compounds?
Organoselenium compounds act as antioxidants and glutathione peroxidase mimetics, detoxifying hydrogen peroxide in biological pathways. Mugesh et al. (2001) in "Chemistry of Biologically Important Synthetic Organoselenium Compounds" describe their role in synthetic antioxidants with therapeutic potential. These properties contribute to chemopreventive effects against oxidative damage.
How do organotellurium compounds compare to organoselenium in toxicology?
Nogueira et al. (2004) in "Organoselenium and Organotellurium Compounds: Toxicology and Pharmacology" examine both, noting organotellurium compounds share catalytic and pharmacological profiles but exhibit distinct toxicity patterns. Their interactions influence biological pathways similarly to selenium analogs. The review, with 1862 citations, provides comprehensive data on these differences.
What is the significance of glutathione peroxidase in this chemistry?
Glutathione peroxidase is a selenoenzyme that organoselenium compounds mimic for peroxide reduction. Flohé et al. (1973) in "Glutathione peroxidase: A selenoenzyme" established its mechanism, cited 1370 times. Arthur (2001) in "The glutathione peroxidases" details family-wide functions in cellular protection.
What applications do these compounds have in neuroscience?
Mice deficient in cellular glutathione peroxidase show increased vulnerability to neurotoxins like malonate and 1-methyl-4-phenyl-1,2,5,6-tetrahydropyridine, as shown by Klivényi et al. (2000). Organoselenium compounds mitigate such effects through antioxidant activity. This links the field to neuroprotection studies.
What synthetic aspects are covered in key reviews?
Patai and Rappoport (1994) in "The Chemistry of Organic Selenium and Tellurium Compounds" cover synthesis, NMR, and photochemistry of these compounds. Zade and Singh contribute chapters on organoselenium and organotellurium synthesis. The work, cited 924 times, serves as a core reference for methods.
How are organoselenium compounds used in structural biology?
Selenomethionyl proteins enable multiwavelength anomalous diffraction for 3D structure determination, per Hendrickson et al. (1990). This technique incorporates selenium into proteins for analysis. The method, cited 1009 times, connects organoselenium chemistry to crystallographic applications.
Open Research Questions
- ? How can organotellurium compounds be optimized to reduce toxicity while maintaining glutathione peroxidase mimetic activity?
- ? What structural modifications enhance the chemopreventive efficacy of synthetic organoselenium antioxidants in vivo?
- ? How do interactions between organoselenium and organotellurium reagents influence catalytic reaction selectivity?
- ? What are the precise biological pathways linking glutathione peroxidase deficiency to vulnerability from specific neurotoxins?
- ? Can van der Waals radii data improve predictive models for organoselenium compound reactivity?
Recent Trends
The field includes 20,866 works with no specified five-year growth rate; highly cited reviews like Nogueira et al. with 1862 citations and Mugesh et al. (2001) with 1639 citations dominate.
2004No recent preprints or news coverage in the last 12 months or six months, respectively, indicates steady reliance on foundational papers such as Patai and Rappoport with 924 citations.
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