If you have been reading about GSH and want a single page that covers the useful parts, this is it: definitions, context, how it is studied, and the questions that come up repeatedly.
Last reviewed on 2026-07-03. Where a claim depends on a specific study, the study is described rather than over-claimed.
Glutathione is a small tripeptide built from glutamate, cysteine, and glycine. The peptide bond between glutamate and cysteine uses the gamma-carboxyl group, a linkage that resists ordinary peptidases. Cells make it in two ATP-dependent steps: gamma-glutamylcysteine synthetase joins glutamate and cysteine, then glutathione synthetase adds glycine. The pathway is feedback-inhibited by glutathione itself, so intracellular levels tend to stay within a narrow range. Because cysteine is often limiting, sulfur amino acid supply influences how much glutathione a cell can produce.
In its reduced form, glutathione carries a sulfhydryl group that can donate electrons. This property lets it act as a major cellular antioxidant and redox buffer. Glutathione peroxidase uses it to reduce hydrogen peroxide and lipid peroxides, while glutathione reductase regenerates the reduced form using NADPH. The ratio of reduced glutathione to glutathione disulfide is widely used as an indicator of oxidative stress, though the ratio changes with compartment, cell type, and sample handling. Oxidized glutathione can also form mixed disulfides with proteins, affecting their activity.
Glutathione is a tripeptide composed of glutamate, cysteine, and glycine. Its glutamate-cysteine linkage uses the gamma-carboxyl group of glutamate, a feature that resists standard peptidases. The cysteine residue provides a thiol group, which gives the molecule its reducing character. In cells, glutathione is often the most abundant small-molecule thiol, with concentrations varying widely by tissue and compartment. It exists mainly in a reduced form called GSH, while oxidation produces a disulfide-linked dimer called GSSG.
Biosynthesis proceeds in two ATP-dependent steps. First, glutamate-cysteine ligase joins glutamate and cysteine. Second, glutathione synthetase adds glycine to the intermediate. The pathway is regulated by cysteine availability, enzyme expression, and feedback inhibition by glutathione itself. Liver tissue has a particularly high capacity for synthesis and export. Because the molecule is made inside cells, circulating glutathione reflects a balance of release, uptake, and breakdown rather than simple dietary supply.
| Property | Value | Notes |
|---|---|---|
| Chemical formula | C10H17N3O6S | Refers to the reduced form |
| Molar mass | 307.32 g/mol | Calculated for the neutral molecule |
| Appearance | White crystalline powder | Often hygroscopic; protect from moisture |
| Water solubility | Soluble in water | Reported values vary with purity and form |
| Alternative names | GSH, reduced glutathione | GSH specifies the thiol form |
Bromelain, a concentrate of proteolytic enzymes from the pineapple plant, is used in medicine. It is approved in the European Union for the debridement (removal of eschar, that is dead and damaged tissue) of severe burn wounds under the brand name Nexobrid. It was developed by MediWound. The medicine has been granted orphan drug status by the European Medicines Agency (EMA). In other contexts, bromelain has been researched for possible anti-inflammatory effects in treating a range of conditions or diseases, but results of these studies are mixed and regarded as preliminary. In December 2022, anacaulase-bcdb (Nexobrid) was approved for medical use in the United States.
== Church service == Prior to his call to full-time service, Kearon's service in the church included being president of the Bristol England Stake and area seventy. At the time of his call as a general authority, Kearon was living in Clevedon, which is a town in North Somerset, England. In 2011, he was appointed as an assistant executive director of the church's priesthood and media services departments. From August 2012 to August 2015, he served as a counselor in the presidency of the church's Europe Area, before becoming the area's president in August 2015. In May 2017, it was announced that Kearon would become a member of the Presidency of the Seventy on August 1, with responsibility for the church's North America Northwest and North America West areas. Kearon has been vocal on the topic of religious freedom, stating that "religious freedom means nothing if you protect your own religious practice while neglecting the practice of others, especially those who might be less secure and able to defend themselves. It only works if you protect the rights of everyone." In 2016, he addressed European Commission officials at a European Union summit asking for assistance during the refugee crisis. Kearon was quoted in a New York Times op-ed with regards to his work with refugees saying, “Their story is our story, not that many years ago.” While serving as president of the church's Europe Area, Kearon initiated programs to assist refugees in the area and also led out in the church working to support existing programs to help refugees..
According to the Salvadoran government, the country's homicide rate was 38 per 100,000 people in 2019; 19.7 per 100,000 in 2020; 17.6 per 100,000 in 2021; 7.8 per 100,000 in 2022; 2.4 per 100,000 in 2023; and 1.9 per 100,000 in 2024. Bukele has attributed the decline to his security policies. According to Celia Medrano, a human-rights lawyer and former general coordinator of the Commission for the Defense of Human Rights of Central America, it is "impossible" ("imposible") to verify the Salvadoran government's homicide figures because there is "no public access" ("no hay acceso público") to a daily homicide registry. Medrano stated that deaths in custody are not registered as homicides. Bodies found in mass graves, missing persons, and people killed in police encounters are not included in the government's homicide statistics. In July 2024, then former United States president Donald Trump falsely accused Bukele's government of "exporting" criminals to the United States to lower El Salvador's crime rate.
Sources: en.wikipedia.org
On February 6, 2017, Duterte, citing continued attacks by the NPA on the military, formally terminated peace negotiations with the CPP-NPA-NDF, designated them as a terrorist organization and ordered the arrest of all NDF negotiators. Through an executive order he issued in December 2018, Duterte established the National Task Force to End Local Communist Armed Conflict (NTF-ELCAC), an inter-agency body that involved a whole-of-nation approach—from the national to local level— in addressing the root causes of communism. The NTF-ELCAC worked in close coordination with the military and focused on developing far-flung localities infiltrated by the NPA. Duterte also granted amnesty to former communist rebels and launched reintegration programs to support them and their families. Ultimately, in March 2019, he permanently terminated peace negotiations with the CPP-NPA-NDF, facilitating localized peace talks with the rebels. Duterte left office with the number of NPA guerrilla fronts in the country reduced from 89 to 23, and about 20,579 communist rebels reportedly surrendered from 2016 to 2021. Despite its success in reducing communist insurgency in the country, Duterte's administration was marred by numerous allegations of red-tagging, notably the left-leaning Makabayan Bloc; Duterte and the military dismissed the red-tagging accusations and argued the government was merely "identifying" them as communist fronts.
=== Lost Connections (2018) === Lost Connections was published in the US and UK on January 23rd, 2018. In Lost Connections, Hari argues that depression and related mental health conditions are not solely caused by chemical imbalances in the brain, instead being rooted in social, environmental, and psychological factors. Hari emphasizes that someone who finds benefits in taking an anti-depressant medication should not stop taking them. Kirkus Reviews praised Lost Connections. In one of The Guardian's reviews of the book, arts writer Fiona Sturges alluded to Hari's earlier examples of journalism malpractice that date to his earlier period as a newspaper reporter. She noted that in contrast, Hari made notes and interview recordings for Lost Connection available. Lost Connections has been translated into German, Japanese, and Spanish. The original UK and US releases of Lost Connections have different subtitles. The full title of the UK edition reads: Lost Connections: Why You're Depressed and How to Find Hope, while the US edition reads: Lost Connections: Uncovering the Real Causes of Depression - and the Unexpected Solutions.
Euthyroid sick syndrome (ESS) is a state of adaptation or dysregulation of thyrotropic feedback control wherein the levels of T3 or T4 are abnormal, but the thyroid gland does not appear to be dysfunctional. This condition may result from allostatic responses of hypothalamus-pituitary-thyroid feedback control, dyshomeostatic disorders, drug interferences, and impaired assay characteristics in critical illness. The classical phenotype of this condition is often seen in starvation, critical illness, or patients in the intensive care unit. Similar endocrine phenotypes are observed in fetal life and in hibernating mammals. The most common hormone pattern in nonthyroidal illness syndrome is low total and free T3, elevated rT3, and normal T4 and TSH levels, although T4 and TSH suppression may occur in more severe or chronic illness. This classical pattern results from type 1 allostatic load, i.e. a stress response resulting from lacking energy, oxygen, and glutathione. An alternative phenotype with a largely inverse hormonal pattern is seen in several physiological and pathological conditions, including pregnancy, obesity, endurance training, and psychiatric diseases. It is typically associated with high-T3 syndrome, increased plasma protein binding of thyroid hormones, and an elevated set point of the homeostatic system. It represents a response to type-2 allostatic load.
Sources: en.wikipedia.org
==== Geography ==== Rural areas and urban communities encounter differences surrounding the stigma of mental health due to the geography of the location. Urban areas offer far more mental health services and a variety of diverse professional resources. Dense urban populations naturally experience more exposure to mental health advocacy, exhibiting lower levels of stigma towards mental health. Although urban communities may offer access to mental health services, individuals still struggle with negative opinions regarding psychological distress. Residents in rural areas project a higher percentage of stigma towards mental health, promoting emotional stoicism, societal rejection, and judgment. Rural areas lack availability and offer far more limited treatments to the community.
=== Generic names === Flutamide is the generic name of the drug and its INNTooltip International Nonproprietary Name, USANTooltip United States Adopted Name, BANTooltip British Approved Name, DCFTooltip Dénomination Commune Française, and JANTooltip Japanese Accepted Name. Its names in Latin, German, and Spanish are flutamidum, flutamid, and flutamida, respectively. The medication has also been referred to by the name niftolide.
== In plants == Plant-made pharmaceuticals (PMPs), also referred to as pharming, is a sub-sector of the biotechnology industry that involves the process of genetically engineering plants so that they can produce certain types of therapeutically important proteins and associated molecules such as peptides and secondary metabolites. The proteins and molecules can then be harvested and used to produce pharmaceuticals. Arabidopsis is often used as a model organism to study gene expression in plants, while actual production may be carried out in maize, rice, potatoes, tobacco, flax or safflower. Tobacco has been a highly popular choice of organism for the expression of transgenes, as it is easily transformed, produces abundant tissues, and survives well in vitro and in greenhouses. The advantage of rice and flax is that they are self-pollinating, and thus gene flow issues (see below) are avoided. However, human error could still result in modified crops entering the food supply. Using a minor crop such as safflower or tobacco avoids the greater political pressures and risk to the food supply involved with using staple crops such as beans or rice. Expression of proteins in plant cell or hairy root cultures also minimizes risk of gene transfer, but at a higher cost of production. Sterile hybrids may also be used for the bioconfinement of transgenic plants, although stable lines cannot be established. Grain crops are sometimes chosen for pharming because protein products targeted to the endosperm of cereals have been shown to have high heat stability.
Robert Nathan Allen of the pro-entomophagy organization Little Herds feels that the welfare of insects is important, though he believes well managed farms can maintain high standards of care. Some entomophagy suppliers highlight the importance of humane insect treatment, though the industry recognizes that evidence on which practices actually result in humane treatment is currently lacking. For instance, World Ento uses the name "Good Karma Killing" to describe its process of freezing insects into a stasis state, but this method is not expected to produce a humane death according to the American Veterinary and Medical Association. A 2013 FAO report on "Edible insects" includes a section encouraging high standards of welfare in entomophagy operations, despite uncertainty about whether insects can suffer. Others feel that considering the wellbeing of farmed insects is going too far. Rhys Southan suggests that even most vegans do not care a lot about insects, but that "Insects are to animal rights what Larry Flynt is to the First Amendment—you have to uphold their rights even if you don't want to, or the whole thing falls apart." He goes on to propose satirical slogans that insect-rights activists might use against entomophagy. However, data on public perceptions suggests that many members of the mainstream American public care about insect welfare in farming, particularly younger consumers, as do traditional animal welfare NGOs in Europe.
Sources: en.wikipedia.org
It is a tripeptide of glutamate, cysteine, and glycine. The glutamate-cysteine bond is unusual because it forms through the gamma-carboxyl group.
It reflects the balance between oxidant exposure and antioxidant capacity. The ratio is not a direct clinical diagnosis and depends on the tissue and sample method.
No. It also participates in detoxification, amino acid transport, and protein modification. Its roles vary by cell type and compartment.
Glutathione is a sulfur-containing tripeptide made from glutamate, cysteine, and glycine. It is found in most cells and participates in redox balance and detoxification reactions.