Contents 4 dk okuma
What is Apigenin?
Apigenin (4',5,7-trihydroxyflavone) is a polyphenolic flavonoid widely found in the plant world. Among the most well-known sources Matricaria chamomilla (German chamomile), parsley (Petroselinum crispum), celery, thyme and fennel. The traditionally known relaxing effect of chamomile tea is largely associated with this molecule.
Apigenin has come to the fore as a supplement on the agenda of users seeking sleep and anxiety support in recent years; It is especially used together with or as an alternative to melatonin. Although its bioavailability is low in oral intake, standardized extracts partially address this problem.
Link to Chamomile Tea
Relaxing effect of chamomile tea The relationship between Apigenin and Apigenin is explained by the weak binding tendency of the flavonoid to GABA-A receptors. However, the amount of apigenin in a cup of chamomile tea is far below the doses in supplement forms.
Mechanism of Effect
Multiple mechanisms are thought to underlie the effects of apigenin on the central nervous system:
1. Partial/Weak Modulation to GABA-A Receptor
In vitro studies have shown that apigenin binds to the benzodiazepine binding site of the GABA-A receptor. a partial and weak modulator It shows that it is connected as . This effect results in a much more limited inhibition compared to the full agonism of benzodiazepines; therefore the potential for sedation and addiction is significantly lower. This mechanism is the possible explanation for the anxiolytic and sedative effect.
2. Antioxidant and Anti-inflammatory Effects
Apigenin, like many flavonoids, has antioxidant properties that are thought to reduce neuroinflammation. There is cell culture data that it may reduce oxidative stress and inflammation markers by suppressing the nuclear factor kappa B (NF-κB) pathway; However, the clinical significance of these effects in humans has not yet been adequately investigated.
3. Adenosine Receptor Interaction
Some research suggests that apigenin may also interact with adenosine receptors. Adenosine is an endogenous neuromodulator that increases sleep pressure; This interaction may contribute to the sleep-promoting effect of apigenin. However, this mechanism is still speculative and has not been confirmed in human studies.
Bioavailability and Formulation
The oral bioavailability of apigenin is low due to its poor water solubility and first-pass metabolism. To address this problem, some supplement manufacturers phytosomal (liposomal) formulations or uses standardized extracts. Apigenin in foods is generally found in glycoconjugated forms; The passage of these forms through intestinal hydrolysis affects bioavailability.
Dosage and Usage Protocol
| target | Daily Dose | How to Use | Note |
|---|---|---|---|
| Start (tolerance test) | 25–50 mg/day | Single dose, evening | First 1–2 weeks |
| sleep support | 50–100 mg/day | 30–60 minutes before bed | Can be combined with melatonin |
| Anxiolytic support | 50–100 mg/day | Evening or during the day | Synergy with L-Theanine |
Apigenin is predominantly evening It is a recommended supplement to take. Its calming effect should not interfere with activities requiring concentration during the day. Taking it with food may increase bioavailability.
- Melatonin (0.5–3 mg): Complementary effect to reduce sleep latency
- L-Theanine (100–200 mg): Calming effect synergy, support in falling asleep
- Magnesium L-Threonate: Supportive for sleep quality and nervous system relaxation
Clinical Evidence
Human clinical studies specific to apigenin are still limited. Most of the available evidence comes from animal models or in vitro studies. Although several randomized controlled studies have been published evaluating the effect of chamomile extract (containing apigenin) on anxiety and sleep, studies measuring apigenin alone are few. Therefore, although mechanistic and observational data are promising, clinical recommendations should be cautious.
⚠ Limitation of Evidence
Limitation of evidence: The majority of human studies on apigenin have evaluated chamomile extract in its entirety; thus, the observed effects cannot be attributed solely to apigenin. High-quality randomized controlled trials for pure apigenin supplements are inadequate. This content does not constitute medical advice.
Safety and Side Effects
The safety profile of chamomile-based products is generally considered positive. Although safety data of pure apigenin supplements in humans are limited, available literature does not indicate significant toxicity.
| Possible Impact | frequency | Management |
|---|---|---|
| extreme drowsiness | Dose dependent, rare | Lower the dose, do not take during the day |
| daisy allergy | Those who are allergic to chamomile | Check ingredient label |
| Hormonal interaction (theoretical) | Uncertain, animal data | Caution in hormone-sensitive situations |
⚠ Situations to Consider
Attention: Apigenin has demonstrated estrogenic activity in in vitro studies; Therefore, a physician should be consulted before use in hormone-sensitive conditions (e.g., history of hormone receptor-positive cancer). There is insufficient safety data during pregnancy and breastfeeding.
Sources
- Salehi, B. et al. (2019). The therapeutic potential of apigenin. International Journal of Molecular Sciences, 20(6), 1305. (Genel derlemedir; spesifik mekanizma iddiaları için orijinal çalışmalar incelenmelidir.) Search PubMed (match unverified)
- Viola, H. et al. (1995). Apigenin, a component of Matricaria recutita flowers, is a central benzodiazepine receptors-ligand with anxiolytic effects. Planta Medica, 61(3), 213–216. PubMed · PMID 7617761
- Amsterdam, J.D. et al. (2009). A randomized, double-blind, placebo-controlled trial of oral Matricaria recutita (chamomile) extract therapy for generalized anxiety disorder. Journal of Clinical Psychopharmacology, 29(4), 378–382. PubMed · PMID 19593179
Link verification checks the identity of the publication; it does not constitute independent expert review of clinical claims. Our evidence and source methodology · Source directory
Frequently Asked Questions
Apigenin is a natural flavonoid found in plants such as chamomile, parsley and celery. It has a calming and anxiolytic effect through weak and partial modulation of GABA-A receptors; It stands out as a supplement especially for evening use due to its sleep-supporting properties.
Due to its calming effect, it is recommended to take it in the evening, 30-60 minutes before going to bed. It may cause drowsiness during daytime use; Therefore, use should be avoided before activities that require attention.
Yes. Melatonin is a hormone that regulates circadian rhythm; Apigenin is a flavonoid that acts on GABA-A receptors. Their mechanisms of action are different and some users use the two substances in combination. However, clinical evidence for the combination is limited.
No. The amount of apigenin in a cup of chamomile tea remains well below the doses used in supplement forms (25–100 mg). Although tea is a relaxing drink, it is difficult to achieve the pharmacological effect of apigenin through tea.
It is generally considered a well-tolerated compound. However, since it shows mild estrogenic activity in in vitro studies, caution should be exercised in hormone-sensitive situations. Those allergic to chamomile should check the ingredient label. There is no sufficient safety data during pregnancy and breastfeeding.
