Nervine

In prenatally stressed rat offspring, the standardized extract CDRI 08 reversed oxidative and apoptotic markers and restored memory through neurogranin, BDNF and synaptic-protein signalling ^{10Reference 10Sivasangari et al. · 2020AnimalStandardized Bacopa monnieri extract ameliorates learning and memory impairments through synaptic protein, neurogranin, BDNF signaling, and HPA axis in prenatally stressed rat offspring — animal modelView study →}. A 2024 systematic review of 22 reports credits bacoside A and betulinic acid with anti-apoptotic and synapse-restoring actions ^{11Reference 11Valotto Neto et al. · 2024Systematic reviewInvestigating the neuroprotective and cognitive-enhancing effects of Bacopa monnieri — systematic reviewView study →}, and an ethanolic extract restores Nrf2, reduces GSK-3β phosphorylation and blocks tau aggregation in Neuro2a cells ^{12Reference 12Dubey et al. · 2023In vitroBacopa monnieri reduces Tau aggregation and Tau-mediated toxicity in cells — in vitroView study →}.

This is a restorative rather than relaxant profile, consistent with the 12-week dosing the cognitive trials require.

Every one of these findings is from rodents or cell lines. No human study has measured a neurotrophic endpoint.

Raw and classically processed rhizome shortened the tonic-extensor phase in maximal electroshock ^{21Reference 21Bhat SD et al et al. · 2012AnimalAnticonvulsant activity of raw and classically processed Vacha (Acorus calamus Linn.) rhizomes — animal in vivoView study →}. At 200 mg/kg orally for 14 days it cut seizure behaviour and spike-wave discharges in ferric-chloride epileptogenesis while lowering brain lipid peroxidation ^{22Reference 22Hazra R et al et al. · 2007AnimalInhibitory role of Acorus calamus in ferric chloride-induced epileptogenesis in rat — animal in vivoView study →}, and a sub-anticonvulsant dose potentiated valproate and carbamazepine in the PTZ model ^{23Reference 23Katyal J et al et al. · 2012AnimalInteraction of hydroalcoholic extract of Acorus calamus Linn. with sodium valproate and carbamazepine — animal in vivoView study →}.

Hydroalcoholic extract (600 mg/kg) restored Morris-water-maze performance and normalized acetylcholinesterase, SOD and glutathione in scopolamine dementia ^{24Reference 24Malik R et al et al. · 2024AnimalAntioxidative and neuroprotective potential of Acorus calamus linn. and Cordia dichotoma GView study →}. Isolated α-asarone (15–30 mg/kg for 14 days) reversed scopolamine amnesia and lowered cortical and hippocampal AChE ^{25Reference 25Venkatesan K · 2022AnimalAnti-amnesic and anti-cholinesterase activities of α-asarone against scopolamine-induced memory impairments in rats — animal in vivoView study →}, and extract and α-asarone protected spatial memory under noise stress ^{26Reference 26Sundaramahalingam M et al et al. · 2013AnimalRole of Acorus calamus and alpha-asarone on hippocampal dependent memory in noise stress exposed rats — animal in vivoView study →} and preserved Na⁺/K⁺-ATPase under restraint stress ^{27Reference 27Reddy S et al et al. · 2015AnimalEffects of Acorus calamus Rhizome Extract on the Neuromodulatory System in Restraint Stress Male Rats — animal in vivoView study →}.

An older study characterizes the ethanol extract as broadly CNS-depressant ^{28Reference 28Vohora SB et al et al. · 1990AnimalCentral nervous system studies on an ethanol extract of Acorus calamus rhizomes — animal in vivoView study →}.

The mechanistic weight sits on isolated α- and β-asarone, and β-asarone drives the amyloid-autophagy result ^{29Reference 29Wang N et al et al. · 2019In vitroWang N et al. (2019). β-Asarone Inhibits Amyloid-β by Promoting Autophagy in a Cell Model of Alzheimer’s Disease — in vitro. Front Pharmacol. https://pubmed.ncbi.nlm.nih.gov/32009952/View study →}; the same molecules carry the plant’s toxicological liability. Much of the wider Acorus brain-tonic literature concerns A. tatarinowii and A. gramineus, which are different drugs from calamus.

In mice the aqueous extract induced sleep and cut spontaneous locomotion above 100 mg/kg, with anxiolysis dominating below that ^{30Reference 30Rolland A et al. · 1991Behavioural effects of the American traditional plant Eschscholzia californica: sedative and anxiolytic propertiesView study →}. The relaxant and hypnotic effects are one dose-separated gradient rather than two mechanisms.

The single-herb human evidence is a placebo-controlled quantitative-EEG screen of eight plant extracts, which detected a measurable acute sedative signal for California poppy with increased self-rated tiredness, weaker and qualitatively different from the diazepam reference ^{31Reference 31Schulz H et al. · 1998The quantitative EEG as a screening instrument to identify sedative effects of single doses of plant extracts in comparison with diazepamView study →}.

The only human sleep outcome data come from a 4-week open-label pilot (n=40) of a product also containing melatonin, vitamin B6, passionflower and lemon balm ^{32Reference 32Lemoine P et al. · 2019A combination of melatonin, vitamin B6 and medicinal plants in the treatment of mild-to-moderate insomnia: a prospective pilot studyView study →}, and melatonin alone can explain that result. A single-herb Phase 3 sleep trial has completed (NCT06795776, n=104) but has posted no results.

The bark’s ethyl-acetate fraction repeatedly protects rodent brain tissue from ischaemia–reperfusion injury: first ex vivo in hippocampal slices under oxygen–glucose deprivation ^{33Reference 33Kamdem et al. · 2012In vitroCatuaba (Trichilia catigua) prevents against oxidative damage induced by in vitro ischemia–reperfusion in rat hippocampal slices — in vitroView study →}, then in mice and rats under carotid or four-vessel occlusion, where it preserved spatial and long-term memory, limited hippocampal cell death and lowered oxidative-stress and neuroinflammation markers ^{34,35,36Reference 34Truiti et al. · 2015AnimalTrichilia catigua ethyl-acetate fraction protects against cognitive impairments and hippocampal cell death induced by bilateral common carotid occlusion in mice — animal modelView study →Reference 35Godinho et al. · 2018AnimalEthyl-acetate fraction of Trichilia catigua restores long-term retrograde memory and reduces oxidative stress and inflammation after global cerebral ischemia in rats — animal modelView study →Reference 36Godinho et al. · 2018AnimalEthyl-acetate fraction of Trichilia catigua protects against oxidative stress and neuroinflammation after cerebral ischemia/reperfusion — animal modelView study →}. A 2023 study showed delayed post-insult dosing still works within a mapped time window and affects neural plasticity ^{37Reference 37de Oliveira et al. · 2023AnimalDelayed administration of Trichilia catigua AView study →}.

The extract is also anticholinesterase and antifatigue in animals ^{38Reference 38Martins et al. · 2018AnimalAntioxidant, anticholinesterase and antifatigue effects of Trichilia catigua (catuaba) — animal modelView study →} and multimodal at CNS targets in vitro ^{39Reference 39Bernardo et al. · 2018In vitroIn vitro multimodal-effect of Trichilia catigua AView study →}.

The work is in rodent stroke models with pre- or peri-insult dosing, and it uses a purified fraction rather than the bark decoction or tincture in use.

In a double-blind, placebo-controlled crossover (n=40), a single 12 g oral dose significantly attenuated the acoustic startle response 30–60 minutes after dosing, without affecting mood, heart rate or blood pressure ^{48Reference 48Bradwejn et al. · 2000RCTA double-blind, placebo-controlled study on the effects of Gotu Kola on acoustic startle response in healthy subjects — randomised trialView study →}. A small open-label GAD study (500 mg twice daily for 60 days) and a 2017 meta-analysis of acute alertness and anger add weaker support ^{49,50Reference 49Jana et al. · 2010Clinical trialA clinical study on the management of generalized anxiety disorder with Centella asiatica — clinical trialView study →Reference 50Puttarak et al. · 2017Meta-analysisEffects of Centella asiatica on cognitive function and mood — systematic review and meta-analysisView study →}.

The effect is measurable but demonstrated acutely and after a single dose. No adequately powered RCT of sustained treatment exists.

Three controlled trials carry the evidence ^{55,56,57Reference 55Saxena et al. · 2012RCTEfficacy of an extract of Ocimum tenuiflorum (OciBest) in the management of general stress — randomised placebo-controlled trialView study →Reference 56Bhattacharyya et al. · 2008Clinical trialControlled programmed trial of Ocimum sanctum leaf on generalized anxiety disorders — controlled clinical trialView study →Reference 57Lopresti et al. · 2022RCTA randomised, double-blind, placebo-controlled trial investigating the effects of a standardised Ocimum tenuiflorum extract — randomised controlled trialView study →}. The first improved sleep and exhaustion within a stress-symptom cluster ^{55Reference 55Saxena et al. · 2012RCTEfficacy of an extract of Ocimum tenuiflorum (OciBest) in the management of general stress — randomised placebo-controlled trialView study →}, and the most recent improved stress and sleep-related measures ^{57Reference 57Lopresti et al. · 2022RCTA randomised, double-blind, placebo-controlled trial investigating the effects of a standardised Ocimum tenuiflorum extract — randomised controlled trialView study →}.

No sedation is reported, and no receptor-level target has been identified.

Against the relaxant nervines such as valerian and kava, tulsi is a daily tonic rather than an acute agent. Its stress and anxiety evidence is examined under the adaptogen and anxiolytic actions.

A randomized, placebo-controlled, double-blind crossover pilot (n=36 healthy young adults, two 4-week periods) found a hops dry extract lowered self-reported depression, anxiety and stress on the DASS-21, with morning cortisol also tracked ^{58Reference 58Kyrou I et al. · 2017RCTEffects of a hops (Humulus lupulus L.) dry extract supplement on self-reported depression, anxiety and stress levels in apparently healthy young adults: a randomized, placebo-controlled, double-blind, crossover pilot study — [randomized]View study →}. Separately, matured hop bitter acids improved mood state alongside cognition in older adults, with lower β-endorphin, through a proposed vagal gut-to-brain route ^{59Reference 59Fukuda T et al. · 2020RCTSupplementation with Matured Hop Bitter Acids Improves Cognitive Performance and Mood State in Healthy Older Adults with Subjective Cognitive Decline — [randomized]View study →}.

The nervous-system effect covers daytime tone as well as sleep onset. It rests on one small unreplicated trial and a mood sub-arm, both in non-clinical populations.

Inhaled jasmine odour blunted the diastolic pressure rise during a handgrip stress task by roughly a quarter, a central rather than merely psychological action ^{60Reference 60Nagai M et al et al. · 2000Clinical trialPleasant odors attenuate the blood pressure increase during rhythmic handgrip in humans — [human study]View study →}. Jasmine-tea odour and its component linalool slowed heart rate, raised high-frequency HRV and lifted calm-vigorous mood in small human studies ^{61,62Reference 61Inoue N et al et al. · 2003Autonomic nervous responses according to preference for the odor of jasmine tea — [human autonomic study]View study →Reference 62Kuroda K et al et al. · 2005Clinical trialSedative effects of the jasmine tea odor and (R)-(-)-linalool, one of its major odor components, on autonomic nerve activity and mood states — [human study]View study →}, and a 2024 single-blinded placebo-controlled trial found reduced anxiety in children during dental procedures ^{63Reference 63Jafarzadeh Samani M et al et al. · 2024RCTAnxiolytic Effect of Jasmine Aromatherapy in Pediatric Dental Procedures: A Single-Blinded Randomized Placebo-Controlled Trial — [randomised placebo-controlled trial]View study →}.

A separate preclinical thread runs through ingestion. Jasmine tea and J. sambac essential oil reversed depressive-like behaviour in rodent stress models via hippocampal serotonin receptors, BDNF and the gut–brain axis ^{64,65,66Reference 64Ma Y et al et al. · 2025AnimalAntidepressant-like Effects of Five Essential Oils Inhaled in Reserpine-induced Depressed Mouse Models — [mouse model (in vivo)]View study →Reference 65Zhang Y et al et al. · 2021AnimalJasmine Tea Attenuates Chronic Unpredictable Mild Stress-Induced Depressive-like Behavior in Rats via the Gut-Brain Axis — [rat model]View study →Reference 66Zhou J et al et al. · 2025AnimalJasmine tea extract prevents CUMS-induced depression-like behaviors through the modulation of microbiota-gut-brain axis — [rat model]View study →}, with methyl jasmonate acting through monoaminergic pathways ^{67,68Reference 67Umukoro S et al et al. · 2018AnimalAntidepressant-like activity of methyl jasmonate involves modulation of monoaminergic pathways in mice — [mouse model]View study →Reference 68Adebesin A et al et al. · 2017AnimalMethyl jasmonate attenuated lipopolysaccharide-induced depressive-like behaviour in mice — [study]View study →}.

Every human study is small and the delivery is aromatic; there is no standardized internal preparation and no registered clinical trial ^{69,70Reference 69Hongratanaworakit T · 2010Stimulating effect of aromatherapy massage with jasmine oil — [human aromatherapy study]View study →Reference 70Choi NY et al et al. · 2022Clinical trialEffects of Olfactory Stimulation with Aroma Oils on Psychophysiological Responses of Female Adults — [human study]View study →}. The rodent antidepressant work uses jasmine tea and isolated methyl jasmonate rather than the flower absolute.

The oral preparation Silexan modulates 5-HT1A receptors on human PET, and in mice the anxiolytic effect of the inhaled oil depends on serotonergic rather than GABA-A/benzodiazepine transmission ^{74,75Reference 74Baldinger et al. · 2014RCTEffects of Silexan on the serotonin-1A receptor and microstructure of the human brain — a randomized, placebo-controlled PET studyView study →Reference 75Chioca et al. · 2013AnimalAnxiolytic-like effect of lavender essential oil inhalation in mice: participation of serotonergic but not GABA-A/benzodiazepine neurotransmission — animal modelView study →}.

The documented magnitude of the effect is the Silexan anxiety evidence, examined under the anxiolytic action.

Older claims that lavender reverses caffeine stimulation or inhibits acetylcholine release trace to isolated animal and in-vitro work and are not established human effects.

Extracts potentiate pentobarbital sleep and reduce locomotor activity alongside the anxiolytic effect ^{79,80Reference 79Aguirre-Hernández et al. · 2007AnimalPharmacological evaluation of the anxiolytic and sedative effects of Tilia americana L. var. mexicana in mice — animal in vivo studyView study →Reference 80Pérez-Ortega et al. · 2008AnimalSedative and anxiolytic efficacy of Tilia americana var. mexicana inflorescences used traditionally by communities of the State of Michoacán, Mexico — animal in vivo studyView study →}, and hippocampal firing is directly suppressed through GABA-A/benzodiazepine receptor activation ^{81Reference 81Allio et al. · 2015In vitroBud extracts from Tilia tomentosa Moench inhibit hippocampal neuronal firing through GABAA and benzodiazepine receptor activation — in vitro studyView study →}. A T. americana flavonoid mixture (quercetin 4’-O-rhamnoside and isoquercitrin) is antidepressant-like in the forced swim test ^{82Reference 82Martínez-Hernández et al. · 2021AnimalA mixture of quercetin 4’-O-rhamnoside and isoquercitrin from Tilia americana var. mexicana with antidepressant activity in mice — animal in vivo studyView study →}, and a related extract is anticonvulsant in the pentylenetetrazole model ^{83Reference 83Cárdenas-Rodríguez et al. · 2014AnimalAnticonvulsant and antioxidant effects of Tilia americana var. mexicana and flavonoid constituents in pentylenetetrazole-induced seizures — animal in vivo studyView study →}.

The active materials are water and hydroethanolic flower extracts, so the preparation studied matches the tea in use.

Linden is the gentle end of the nervine shelf. No human data exist, and a review of traditional insomnia remedies found no demonstrated clinical efficacy despite the excellent safety record ^{84Reference 84Prescrire International · 2005ReviewManagement of insomnia: a place for traditional herbal remedies — reviewView study →}.

A 2009 randomized, double-blind, placebo-controlled trial in 30 Japanese adults (aged 50–80) with mild cognitive impairment gave 1 g of dried fruiting-body powder three times daily for 16 weeks. Cognitive-scale scores rose significantly versus placebo from week 8, and fell back within 4 weeks of stopping ^{138Reference 138Mori et al. · 2009RCTImproving effects of the mushroom Yamabushitake (Hericium erinaceus) on mild cognitive impairment: a double-blind placebo-controlled clinical trialView study →}, so the effect requires continued intake.

A 2010 placebo-controlled trial in 30 menopausal women found lower depression and indefinite-complaint scores after 4 weeks, and the authors noted the effect appeared distinct from NGF enhancement ^{85Reference 85Nagano et al. · 2010RCTReduction of depression and anxiety by 4 weeks Hericium erinaceus intake — randomised, placebo-controlled trialView study →}.

Both trials are small and short, and neither was in a diagnosed mood disorder.

Standardized L. cardiaca extract inhibited binding at the GABA site of the rat GABA-A receptor (IC₅₀ ≈ 21 µg/mL) while barely touching the benzodiazepine site ^{99Reference 99Rauwald et al. · 2015In vitroGABA-A receptor binding assays of standardized Leonurus cardiaca and Leonurus japonicus extracts and their isolated constituents — in vitroView study →}.

Human support is small and uncontrolled. Anxiety and depression scores improved in most patients in an open-label hypertension trial ^{100Reference 100Shikov et al. · 2011Clinical trialEffect of Leonurus cardiaca oil extract in patients with arterial hypertension accompanied by anxiety and sleep disorders — clinical trial (open-label)View study →}, and a motherwort tincture improved emotional state in anxious subjects, though less than melatonin did ^{101Reference 101Ovanesov et al. · 2006Clinical trialEffects of melatonin and motherwort tincture on the emotional state and visual functions in anxious subjects — clinical trialView study →}.

A review concludes that sedative activity has been shown clinically in small uncontrolled studies ^{102Reference 102Wojtyniak et al. · 2013ReviewLeonurus cardiaca L. (motherwort): a review of its phytochemistry and pharmacology — reviewView study →}.

The constituent that explained GABA-A binding in L. japonicus was leonurine, which L. cardiaca lacks, so the active principle in Western motherwort is still unidentified ^{99,103Reference 99Rauwald et al. · 2015In vitroGABA-A receptor binding assays of standardized Leonurus cardiaca and Leonurus japonicus extracts and their isolated constituents — in vitroView study →Reference 103Kuchta et al. · 2012Leonurus japonicus, Leonurus cardiaca, Leonotis leonurus: a novel HPLC study on the occurrence and content of the guanidino derivative leonurine — analyticalView study →}. A registered placebo-controlled pilot RCT (NCT06954038) is not yet recruiting ^{104Reference 104ClinicalTrials.gov · 2025RCTA randomized, double-dummy, placebo-controlled pilot study of an oral supplement based on Leonurus cardiaca for mood and anxiety — registered RCT (not yet recruiting)View study →}.

Mulungu is taken as a bark decoction in Brazilian practice as a calmante for agitation, restlessness and nervous excitability.

The traditional preparation is the bark. The tested activity, examined under the anxiolytic and sedative actions, comes from the flower.

In vitro, linalool-rich oil reduced the compound action potential of an isolated nerve by nearly 100%, a direct drop in neuronal excitability ^{110Reference 110de Almeida RN et al. · 2009AnimalRosewood oil induces sedation and inhibits compound action potential in rodents — animal modelView study →}. Oil and linalool both inhibit forskolin-stimulated adenylate cyclase in retinal tissue, lowering cAMP, a pathway the authors tie to the relaxant and anticonvulsant profile ^{111Reference 111Sampaio LFS et al. · 2012In vitroLinalool from rosewood (Aniba rosaeodora Ducke) oil inhibits adenylate cyclase in the retina — in vitro mechanismView study →}.

Behaviourally this appears as sedation ^{110Reference 110de Almeida RN et al. · 2009AnimalRosewood oil induces sedation and inhibits compound action potential in rodents — animal modelView study →} and as antidepressant-type and neurotrophic effects ^{112,113Reference 112Dos Santos ÉRQ et al. · 2018AnimalLinalool-rich essential oils from the Amazon display antidepressant-type effect in rodents — animal modelView study →Reference 113Dos Santos ÉRQ et al. · 2024AnimalLinalool-rich rosewood essential oil mitigates emotional and neurochemical impairments from ethanol binge exposure in female rats — animal modelView study →}. The same four papers carry the herb’s sedative and antidepressant readings.

The effect is a concentrated-linalool effect delivered systemically in rodents, not a demonstrated effect of the 1–2% dilution people inhale or apply.

Two receptor-level bindings anchor the pharmacology: the GABA-A benzodiazepine site ^{114Reference 114Awad et al. · 2003AnimalPhytochemical and biological analysis of skullcap (Scutellaria lateriflora L.): a medicinal plant with anxiolytic properties — animal modelView study →} and the 5-HT7 receptor ^{115Reference 115Gafner et al. · 2003In vitroInhibition of [3H]-LSD binding to 5-HT7 receptors by flavonoids from Scutellaria lateriflora — in vitroView study →}. Ethanolic and aqueous extracts lower peroxide-induced ROS and lipid peroxides in mouse brain homogenates and protect plasmid DNA from oxidative cleavage ^{116Reference 116Lohani et al. · 2013AnimalAnti-oxidative and DNA protecting effects of flavonoids-rich Scutellaria lateriflora — mouse brain tissueView study →}, and orally administered skullcap tea prolonged incubation time in scrapie-infected mice ^{117Reference 117Eiden et al. · 2012In vitroA medicinal herb Scutellaria lateriflora inhibits PrP replication in vitro and delays the onset of prion disease in mice — in vivo animal modelView study →}, one of the few whole-herb in-vivo results among the nervines.

Practitioners choose skullcap as a trophorestorative, a herb that rebuilds nervous-system resilience and reduces hypersensitivity with repeated use.

That restorative claim has no supporting study. The longest trial ran 56 days ^{118Reference 118Di Minno et al. · 2025RCTEfficacy and tolerability of a chemically characterized Scutellaria lateriflora L. extract-based food supplement for sleep management: a single-center, controlled, randomised, crossover, double-blind clinical trialView study →} and measured sleep.

GABA and glutamate uptake inhibition and monoamine reuptake inhibition are attributed to hyperforin, and they drive the mood, somatoform and PMS results examined under the antidepressant action ^{119,120Reference 119Müller · 2001Hyperforin — antidepressant activity by a novel mechanism of actionView study →Reference 120Mennini et al. · 2004ReviewThe antidepressant mechanism of Hypericum perforatum — reviewView study →}.

A general tonic effect on cognition has been tested on its own. A 2016 meta-analysis of rodent studies found improved performance across memory paradigms ^{121Reference 121Ben-Eliezer et al. · 2016Meta-analysisHypericum perforatum as a cognitive enhancer in rodents: A meta-analysis (animal model)View study →}, but an acute randomized double-blind trial in 82 healthy adults at 250 or 500 mg found no improvement in short-term memory or sustained attention ^{122Reference 122Yechiam et al. · 2019RCTThe acute effect of Hypericum perforatum on short-term memory in healthy adults — randomised, double-blind, placebo-controlled trialView study →}.

The traditional infused oil for nerve pain is a topical use, and no study supports it.

Rodent work describes modulation rather than depression of CNS activity: serotonin and dopamine turnover shifted ^{126Reference 126Zhang et al. · 2016AnimalThe anxiolytic effect of essential oil of Cananga odorata exposure on mice and determination of its major active constituents — animal modelView study →}, 5-HT2C-driven anxiety reversed via MAPK/ERK–CREB ^{127Reference 127Zhang et al. · 2018AnimalCananga odorata essential oil reverses m-CPP-induced anxiety via the MAPK pathway and serotonin system in mice — animal modelView study →}, monoamine signalling normalized in an autism-model rat ^{128Reference 128Zhang et al. · 2023AnimalInhalation of Cananga odorata essential oil relieves anxiety behaviors in autism-like rats via serotonin and dopamine metabolism — animal modelView study →}, and mood alterations accompanying neuropathic pain reduced ^{129Reference 129Borgonetti et al. · 2022AnimalYlang-ylang (Cananga odorata) essential oil reduced neuropathic pain and associated anxiety in mice — animal modelView study →}.

In humans the same profile shows as the body calming, in blood pressure and pulse, while alertness holds or rises ^{130,131Reference 130Hongratanaworakit et al. · 2004RCTEvaluation of the harmonizing effect of ylang-ylang oil on humans after inhalation — randomized controlled trialView study →Reference 131Hongratanaworakit et al. · 2006Clinical trialRelaxing effect of ylang ylang oil on humans after transdermal absorption — clinical trialView study →}.

The human read-outs are subjective state scores in small trials, and the same dataset carries the herb’s anxiolytic evidence.

Jujuboside A (10–30 mg/kg for three weeks) reduced immobility in tail-suspension and forced-swim tests and normalized open-field behaviour in corticosterone-induced depression while restoring hippocampal BDNF/TrkB/CREB signalling. The effect was lost in BDNF-knockdown mice, which ties it to that pathway ^{132Reference 132Li et al. · 2022AnimalAntidepressant effect of Jujuboside A on corticosterone-induced depression in mice — [mouse in vivo study]View study →}.

A second rat model relieved depression comorbid with visceral pain by suppressing P2X7R-driven neuroinflammation and raising BDNF ^{133Reference 133Liu et al. · 2026AnimalJujuboside A alleviates visceral pain and depression comorbidity and modulates the P2X7R-BDNF signaling axis — [rat in vivo study]View study →}.

Spinosin reversed scopolamine-induced memory deficits through 5-HT1A-linked ERK/CREB signalling ^{134Reference 134Jung et al. · 2014AnimalAmeliorating effect of spinosin, a C-glycoside flavonoid, on scopolamine-induced memory impairment in mice — [mouse in vivo study]View study →} and cut hippocampal malondialdehyde and amyloid while restoring BDNF in an Aβ model ^{135Reference 135Xu et al. · 2020AnimalNeuroprotective Effects of Spinosin on Recovery of Learning and Memory in a Mouse Model of Alzheimer’s Disease — [mouse in vivo study]View study →}. Jujuboside A also supports prefrontal neuronal mitochondrial function ^{136Reference 136Zhang et al. · 2025AnimalJujuboside A improves insomnia by maintaining mitochondrial homeostasis in prefrontal neurons — [mouse in vivo study]View study →}.

The neurotrophic signal is in isolated compounds, several studies use injected or intracerebroventricular dosing an oral seed cannot replicate, and there is no human endpoint. Cognitive enhancement is not a traditional use of the seed.