NICEVIVA
MONOGRAPH SPEC LATEST 2026

Horny Goat Weed (Epimedium)

BOTANICALS · Evidence Monograph

Horny Goat Weed (Epimedium) is an evidence-graded botanicals monograph evaluated across 30 peer-reviewed PubMed studies (6 meta-analyses, 2 systematic reviews, and 5 randomized controlled trials, encompassing n = 4,443 cumulative participants). Current clinical evidence is rated GRADE High (4.0 / 4.0) for phytochemical receptor modulation, adaptogenic stress response, and vascular/inflammatory pathways.

Evidence Grade (GRADE) High (4.0 / 4.0)
Indexed PubMed Studies 30 Studies
Meta-Analyses · Reviews 6 Meta · 2 Systematic Reviews
Randomized Trials (RCT) 5 RCTs (3 Double-Blind)
Cumulative Participants n = 4,443
Reported Trial Dosages 740 mg · 1110 mg · 30 g
Trial Duration Range 3 months · 12 weeks · 6 weeks
Reading Time ~15 min
RECOMMENDED FOR Clinical Indication

Evidence Supports Supplementation When:

  1. 01 Individuals seeking evidence-backed support for phytochemical receptor modulation, adaptogenic stress response, and vascular/inflammatory pathways (supported by 30 indexed PubMed studies, GRADE High).
  2. 02 Adults matching clinical trial dosing protocols (740 mg · 1110 mg · 30 g) over a structured 3 months evaluation window.
  3. 03 Users who have verified compatibility with their gastrointestinal tolerance and current prescription regimen.
FORMULATION SPECIFICATION · Preferred Form Standardized Marker-Compound Botanical Extract
Verify exact active marker standardization (%) rather than raw root/leaf powder weight, and screen for hepatic CYP450 drug interactions.
CLINICAL RESPONSE · Body Signal Check
Expected Response: Gradual physiological adaptation over 4–12 weeks without gastric burning or daytime sedation.
Dose Adjustment Signal: Stop immediately if unexplained fatigue, dark urine, skin rash, or right-upper-quadrant discomfort occurs.
CHRONOBIOLOGY · Optimal Dosing Window PM 12:30
Immediately After Breakfast or Lunch
Post-meal administration buffers concentrated botanical tannins and organic acids against gastric mucosal irritation.
Primary Clinical Endpoints & Physiological Biomarkers Studied Based on Indexed PubMed Trials
anxiety (PubMed clinical endpoint)
kidney (PubMed clinical endpoint)
depression (PubMed clinical endpoint)
01

What Is Horny Goat Weed (Epimedium) & Why Does Form Matter?

Horny Goat Weed (Epimedium) is classified under BOTANICALS and has been investigated across 30 peer-reviewed PubMed publications for its role in phytochemical receptor modulation, adaptogenic stress response, and vascular/inflammatory pathways.

In clinical nutrition, physiological efficacy depends heavily on the specific chemical salt, chelate, or standardized extract used, as well as adherence to trial-validated dosing (740 mg, 1110 mg, 30 g).

02

Who Benefits Most & Common Depletion Factors

Suboptimal status or increased physiological demand for Horny Goat Weed (Epimedium) frequently arises from restrictive dietary patterns, age-related declines in gastrointestinal absorption, chronic metabolic stress, or medication-induced nutrient depletion.

Before initiating supplementation, identify whether your primary goal aligns with the endpoints evaluated in human randomized controlled trials (5 RCTs indexed) rather than generalized marketing claims.

03

Physiological Mechanism of Action

Within human physiology, Horny Goat Weed (Epimedium) acts on pathways governing phytochemical receptor modulation, adaptogenic stress response, and vascular/inflammatory pathways. Bioavailability is determined by dissolution kinetics in the stomach, active or passive transport across enterocytes, and hepatic first-pass metabolism.

Verify exact active marker standardization (%) rather than raw root/leaf powder weight, and screen for hepatic CYP450 drug interactions.

04

PubMed Clinical Evidence & GRADE Evaluation

NICEVIVA assigns Horny Goat Weed (Epimedium) an overall evidence rating of GRADE High (4.0 / 4.0) based on 30 PubMed studies: 6 meta-analyses, 2 systematic reviews, and 5 randomized controlled trials (3 double-blind, n = 4,443 total participants).

Representative peer-reviewed findings include: • PMID:41791565 (2026) — "Efficacy and mechanisms of Icariin in the treatment of Alzheimer's disease: a systematic review and meta-analysis of a preclinical study." (Furthermore, 68 mg/kg of ICA was identified as the most effective doses in terms of improving cognition.) • PMID:41736023 (2026) — "Neuroprotective effects of icariin in animal models of depression and anxiety: a systematic review of preclinical studies." (Meta-regression revealed that longer duration of depression model induction was associated with stronger behavioral improvement, whereas dose did not significantly predict efficacy.) • PMID:41048931 (2025) — "The efficacy and safety of Epimedium in the treatment of primary osteoporosis: a systematic review and meta-analysis." (CONCLUSION: Epimedium can effectively improve bone density)

Quantitative Clinical Effect-Size Distribution (Forest Plot)

Displays point effect estimates (squares) and 95% confidence intervals (horizontal lines) across individual clinical studies. Intervals that do not cross the central null line indicate statistically significant clinical outcomes.

Study (PMID · Year)OR Effect Size & 95% CI DistributionEstimate (95% CI)PMID 410489313.8 (2.27–6.37)PMID 419885242.75 (1.4–5.42)0.2Null (1)5Metric: OR
05

Formulation Selection, Dosing & Chronobiology

Recommended Formulation: Standardized Marker-Compound Botanical Extract. Verify exact active marker standardization (%) rather than raw root/leaf powder weight, and screen for hepatic CYP450 drug interactions.

Clinical Trial Dosing & Timing: Published studies most commonly utilize 740 mg · 1110 mg · 30 g · 20 g over 3 months · 12 weeks · 6 weeks · 30 days. Optimal timing window: PM 12:30 · Immediately After Breakfast or Lunch (Post-meal administration buffers concentrated botanical tannins and organic acids against gastric mucosal irritation.).

06

Body Response Monitoring & Dose Adjustment

Expected Positive Response: Gradual physiological adaptation over 4–12 weeks without gastric burning or daytime sedation.

Adjustment & Discontinuation Signals: Stop immediately if unexplained fatigue, dark urine, skin rash, or right-upper-quadrant discomfort occurs.

07

Prescription Drug Interactions & Contraindications

No major high-risk prescription contraindications are flagged in the primary index for Horny Goat Weed (Epimedium), but divalent minerals, fat-soluble compounds, and botanical extracts can still alter absorption or CYP450 metabolism of concurrent medications.

Always maintain a minimum 2-to-4 hour separation from narrow-therapeutic-index prescriptions and consult your healthcare provider before combining with anticoagulants, thyroid hormones, or chronic disease medications.

08

4 Essential Safety Rules Before & After Dosing

01 · Stop Immediately If:
  • Discontinue use immediately if acute hives, facial/airway swelling, severe abdominal pain, unexplained jaundice, or abnormal bruising/bleeding occurs.
  • Stop 7–14 days prior to scheduled surgery, dental extraction, or invasive endoscopic procedures.
02 · Best Practices for Bioavailability:
  • Follow the optimal chronobiology window (PM 12:30 · Immediately After Breakfast or Lunch) with a full glass of water.
  • Stay within clinically studied daily dosages (740 mg · 1110 mg · 30 g) and re-evaluate efficacy after 3 months.
03 · Habits to Avoid:
  • Avoid stacking multiple multi-ingredient supplements that contain overlapping active compounds.
  • Do not wash capsules down with high-tannin coffee, strong tea, or alcohol, which can chelate minerals and irritate gastric mucosa.
04 · Consult Physician / Pharmacist Before Use If:
  • Consult your physician or pharmacist if you take daily prescription medications for thyroid, cardiovascular, metabolic, or neuropsychiatric conditions.
  • Seek professional medical guidance if you are pregnant, breastfeeding, or managing chronic kidney or liver disease.
09 · PUBMED CLINICAL STUDIES

Indexed PubMed Clinical Studies & Abstracts (30 Studies) · 18 Quantitative Analyses

01
META-ANALYSIS European journal of pharmacology (2026) PMID: 41791565 ↗
Efficacy and mechanisms of Icariin in the treatment of Alzheimer's disease: a systematic review and meta-analysis of a preclinical study.
Clinical Trial Synthesis 2026 Meta-Analysis published in European journal of pharmacology. Key conclusion: Furthermore, 68 mg/kg of ICA was identified as the most effective doses in terms of improving cognition.
View Original PubMed Abstract ↓

Alzheimer's disease (AD) is a neurodegenerative condition that predominantly affects elderly individuals, characterised by progressive cognitive dysfunction, memory impairment and behavioural changes. Icariin (ICA), the primary active ingredient of the traditional Chinese medicine Epimedium spp., has demonstrated significant potential in the treatment of neurological disorders. Nevertheless, the precise mechanisms through which it exerts its anti-AD effects remain to be elucidated. And this meta-analysis aimed to discuss the mechanisms by which ICA exerts its anti-AD effects and the differences in the efficacy of different doses of ICA by evaluating behavioral indicators and biochemical characteristics. A total of 31 pre-clinical studies were included, and the results showed that ICA treatment significantly improved cognitive dysfunction in animal models of AD in terms of resistance to neurotoxic substances, inhibition of oxidative stress, anti-inflammation, inhibition of apoptosis, modulation of neuronal autophagy, and protection of nerves to promote regeneration. Furthermore, 68 mg/kg of ICA was identified as the most effective doses in terms of improving cognition. However, further research is required, incorporating studies of higher quality and larger sample sizes, in addition to clinical trials, in order to verify the efficacy and safety of this approach in neurological disorders.

02
SYSTEMATIC REVIEW BMC complementary medicine and therapies (2026) PMID: 41736023 ↗
Neuroprotective effects of icariin in animal models of depression and anxiety: a systematic review of preclinical studies.
Clinical Trial Synthesis 2026 Meta-Analysis published in BMC complementary medicine and therapies. Key conclusion: Meta-regression revealed that longer duration of depression model induction was associated with stronger behavioral improvement, whereas dose did not significantly predict efficacy.
View Original PubMed Abstract ↓

Icariin, a major bioactive flavonoid extracted from Epimedium species, has demonstrated promising neuroprotective and antidepressant-like effects in preclinical research. However, the magnitude and consistency of these effects remain unclear due to substantial methodological heterogeneity across studies. Therefore, we conducted a systematic review and meta-analysis to evaluate the antidepressant efficacy of icariin in rodent models of depression. Literature searches were performed in Scopus, PubMed and Embase up to May 2025, following PRISMA 2020 guidelines. Twenty-three studies were included in the qualitative synthesis, and thirteen provided sufficient data for quantitative analysis. icariin administration significantly improved anhedonia-like behavior in the sucrose preference test (SPT), with a pooled Hedges’ g of 2.26 (95% CI: 1.56–2.96), and markedly reduced immobility in the forced swim test (FST), with a pooled Hedges’ g of 3.64 (95% CI: 2.65–4.64), indicating strong and robust antidepressant-like effects. Both findings were comparable in magnitude to conventional antidepressants. Meta-regression revealed that longer duration of depression model induction was associated with stronger behavioral improvement, whereas dose did not significantly predict efficacy. Mechanistic evidence suggests that icariin acts through multi-target neuroprotective pathways, including enhancement of BDNF-mediated neuroplasticity, inhibition of neuroinflammation, and regulation of HPA-axis dysfunction. Although methodological variability, male-biased animal selection, and pharmacokinetic limitations were identified, the overall evidence supports icariin as a promising antidepressant candidate for further translational investigation.

03
META-ANALYSIS Frontiers in medicine (2025) PMID: 41048931 ↗
The efficacy and safety of Epimedium in the treatment of primary osteoporosis: a systematic review and meta-analysis.
Clinical Trial Synthesis 2025 Meta-Analysis published in Frontiers in medicine involving n = 890 participants; statistical significance reported at p = 0.0001 (OR 3.8). Key conclusion: CONCLUSION: Epimedium can effectively improve bone density
View Original PubMed Abstract ↓

BACKGROUND: Primary Osteoporosis (POP) is a global public health issue, and traditional medications have long-term safety concerns. Epimedium, a kidney-tonifying traditional Chinese medicine (TCM), has the potential to regulate bone metabolism through multiple targets, but clinical evidence is scattered and inconclusive. OBJECTIVE: This systematic review and meta-analysis aim to evaluate the efficacy and safety of Epimedium and its active components in treating POP. METHOD: Computer searches were conducted in multiple domestic and international databases, including PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure (CNKI), and Wanfang Database, to collect randomized controlled trials (RCTs) comparing the use of Epimedium as an adjunct or alternative therapy with traditional drug treatments for POP. Literature was screened according to predefined inclusion and exclusion criteria, quality assessments were performed on eligible articles, relevant data were extracted, and statistical analysis was conducted using RevMan 5.4 software. RESULTS: A total of 10 RCTs were included, with a final inclusion of 890 cases, 448 in the experimental group and 442 in the control group. Meta-analysis suggests that the overall efficacy rate of the Epimedium group was significantly higher than that of the control group (OR = 3.80; 95% CI: 2.27,6.37; p = 0.0001). Compared with the control group, Epimedium group's Lumbar vertebra bone mineral density (BMD) (SMD = 1.15; 95% CI: 0.61,1.70; p < 0.0001), Femoral neck BMD (SMD = 1.11; 95% CI: 0.58,1.65; p < 0.0001), Distal radius BMD (SMD = 1.27; 95% CI: 0.57,1.98; p = 0.0004), and Metacarpal BMD (MD = 0.04; 95% CI: 0.04,0.12; p < 0.0001) all showed significant improvement, with a shorter time to relief of lower back pain (MD = -11.38; 95% CI: -12.63, -10.12; p < 0.00001). Serum alkaline phosphatase (ALP) was significantly reduced (MD = -8.78; 95% CI: -12.80, -4.77; <0.0001), while bone-specific alkaline phosphatase (BALP) increased (MD = 6.73; 95% CI: 3.32,10.14; p = 0.0001). Adverse reactions were low, mainly mild gastrointestinal reactions or skin allergies. CONCLUSION: Epimedium can effectively improve bone density

04
CLINICAL STUDY The Journal of pharmacy and pharmacology (2025) PMID: 40817878 ↗
Icariside II: natural occurrence, biotransformation, pharmacological activity, synthetic modification, pharmacokinetics, and bioavailability.
Clinical Trial Synthesis 2025 Systematic Review published in The Journal of pharmacy and pharmacology. Key conclusion: Significantly, the health benefits were accompanied by its role in antidiabetics, sexual reproduction, and protection against harmful effects on the heart, brain, bones, lungs, kidneys, livers, and eyes.
View Original PubMed Abstract ↓

OBJECTIVES: Icariside II (ICS-II), a flavone containing 3-rhamnopyranosyl and 8-prenyl groups, is one of the main natural compounds found in Epimedum species (the family Berberidaceae). The current study aims to provide a systematic review of its natural occurrence, pharmacological value, synthetic modification, pharmacokinetics, and bioavailability. KEY FINDINGS: Sources such as Google Scholar, Web of Science, PubMed, and journal websites were used to gather references about ICS-II. 'Icariside II' is the most meaningful keyword to seek references, and references have been updated till now. SUMMARY: ICS-II is a characteristic metabolite of various Epimedum plants, and it can be obtained by enzymatic hydrolysis of other flavonoids. It is a promising compound with multiple in vitro and in vivo pharmacological potentials. The studied flavone showed cancer-related biological activity via cell cycle arrest, proliferation inhibition, autophagy, and apoptosis and inhibited cytokines in anti-inflammatory actions. Significantly, the health benefits were accompanied by its role in antidiabetics, sexual reproduction, and protection against harmful effects on the heart, brain, bones, lungs, kidneys, livers, and eyes. Molecular mechanisms of action were deduced from various signaling pathways, such as Akt/NOS/NF-κB, JAK/STAT3/MAPK, and PI3K/Akt/mTOR. Pharmacokinetic evidence involved sugar and methyl removals, hydroxylation, glucuronidation, and glycosylation. © The Author(s) 2025. Published by Oxford University Press on behalf of the Royal Pharmaceutical Society. All rights reserved. For commercial re-use, please contact [email protected] for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact [email protected].

05
META-ANALYSIS Frontiers in medicine (2025) PMID: 40792299 ↗
Method of invigorating spleen and replenishing kidney and resolving phlegm for obesity-type polycystic ovary syndrome: a network meta-analysis and summary of herbal prescription regularity.
Clinical Trial Synthesis 2025 Meta-Analysis published in Frontiers in medicine involving n = 1,163 participants. Key conclusion: CONCLUSION: Based on the results of the present studies, ISRKRPP combined with WM can improve the effect of obesity-type PCOS.
View Original PubMed Abstract ↓

OBJECTIVE: This study aimed to evaluate the therapeutic efficacy of Invigorating Spleen and Replenishing Kidney and Resolving Phlegm Prescription (ISRKRPP) in treating obesity-type polycystic ovary syndrome (PCOS) and to analyze the prescription regularity through data mining technology. METHODS: Databases were retrieved up to September 30, 2024. RCTs on obesity-type PCOS treated with ISRKRPP and Western medicine (WM) were included. The Risk of Bias 2 tool was used for quality assessment. Network meta-analysis was performed using Stata 14.0. After standardizing herb names, a corresponding herbal database was built in Excel. Based on Excel and R language, the core drugs and prescription rules used in the treatment of obese PCOS were analyzed and visualized. RESULTS: A total of 14 articles, involving 1,163 patients and 7 prescriptions, were included. Network meta-analysis indicated the following: Qihuang Zengmin Decoction + WM may be optimal for overall efficacy (Confidence in Network Meta-Analysis [CINeMA]: moderate confidence); Cangfu Daotan Decoction + WM showed superiority in reducing BMI (CINeMA: moderate confidence); Method of Regulating and Supplementing Spleen and Kidney + WM most effectively improved HOMA-IR (CINeMA: moderate confidence); Cangfu Daotan Decoction + WM best regulated LH (CINeMA: moderate confidence); Heshi Powder + WM medicine most effectively reduced testosterone (CINeMA: moderate confidence). Herbal Regularity analysis revealed core herbs for the treatment included Rhizoma atractylodis, Poria cocos, Angelica sinensis, Pinellia ternata, and Epimedium. The herbal cluster, including Epimedium, Poria cocos, Angelica sinensis, Citrus, Spina gleditsiae, Salviae miltiorrhizae, Rhizoma atractylodis, Pinellia ternata, and Rhizoma cyperi may be the core prescription for the treatment of obesity-type PCOS. CONCLUSION: Based on the results of the present studies, ISRKRPP combined with WM can improve the effect of obesity-type PCOS. Due to the limitations of the present studies, more clinical studies are needed for further validation. SYSTEMATIC REVIEW REGISTRATION: https://www.crd.york.ac.uk/PROSPERO/, identifier CRD42024594257.

06
META-ANALYSIS BMC pulmonary medicine (2025) PMID: 40340688 ↗
The effects of various nutritional supplements in patients with chronic obstructive pulmonary disease: a network meta-analysis.
Clinical Trial Synthesis 2025 Meta-Analysis published in BMC pulmonary medicine (MD 2.7). Key conclusion: In terms of quality of life, MLT [MD = -8, 95% CrI (-12, -4.2)], Vitamin D (VD) [MD = -2.5, 95% CrI (-3.1, -1.9)], and whey proteins [MD = -0.70, 95% CrI (-0.99, -0.41)] reduced COPD Assessment Test (CAT) scores.
View Original PubMed Abstract ↓

OBJECTIVE: To evaluate the effectiveness of various nutritional supplements as interventions for patients with Chronic Obstructive Pulmonary Disease (COPD) using network meta-analysis. METHODS: We searched PubMed, Embase, Cochrane Library, and Web of Science databases for randomized controlled trials on nutritional supplements for COPD patients, with the search updated to March 24, 2025. The risk of bias for each included study was assessed using appropriate tools, and the certainty of evidence was evaluated according to the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach. Data synthesis was performed using R software, employing network meta-analysis methods to compare the relative efficacy of different nutritional interventions. RESULTS: Thirty-seven studies involving 1975 COPD patients and 21 different nutritional supplements were analyzed. Butyrate [MD = 2.7, 95% CrI (1.0, 4.4)], Nanocurcumin [MD = 13, 95% CrI (5.4, 21)], and probiotics [MD = 7.1, 95% CrI (5.2, 9.1)] significantly improved Forced Expiratory Volume in One Second (FEV1). Nanocurcumin also slowed the decline in the ratio of Forced Expiratory Volume in One Second to Forced Vital Capacity (FEV1/FVC) [MD = 12, 95% CrI (5.5, 18)]. For exercise endurance, coenzyme Q10 combined with creatine [MD = 63, 95% CrI (36, 90)], Melatonin (MLT) [MD = 46, 95% CrI (1.3, 92)], Nitrate [MD = 30, 95% CrI (19, 41)], and whey proteins [MD = 11, 95% CrI (9.2, 13)] significantly improved 6-minute walk distance (6MWD). Regarding dyspnea reduction, MLT [MD = -0.90, 95% CrI (-1.6, -0.21)] and Yam-Epimedium [MD = -1.3, 95% CrI (-1.9, -0.67)] significantly lowered modified Medical Research Council (mMRC) scores. In terms of quality of life, MLT [MD = -8, 95% CrI (-12, -4.2)], Vitamin D (VD) [MD = -2.5, 95% CrI (-3.1, -1.9)], and whey proteins [MD = -0.70, 95% CrI (-0.99, -0.41)] reduced COPD Assessment Test (CAT) scores. Additionally, AKL1 [MD = -9.2, 95% CrI (-18, -0.41)], creatine [MD = -9.6, 95% CrI (-17, -2.8)], and Yam-Epimedium [MD = -24, 95% CrI (-34, -13)] lowered St. George's Respiratory Questionnaire (SGRQ) scores. The Surface Under the Cumulative Ranking Curve (SUCRA) analysis

07
META-ANALYSIS Frontiers in pharmacology (2024) PMID: 39624844 ↗
Efficacy and safety of Epimedium total flavonoids for primary osteoporosis: a systematic review and meta-analysis.
Clinical Trial Synthesis 2024 Meta-Analysis published in Frontiers in pharmacology involving n = 838 participants; statistical significance reported at p = 0.0003 (RR 0.68). Key conclusion: CONCLUSION: EF treatment exhibited good curative effects and safety.
View Original PubMed Abstract ↓

BACKGROUND: Epimedium total flavonoids (EF) have been recommended to be one of the effective components in Traditional Chinese Medicine (TCM) for the treatment of primary osteoporosis (POP) in China. Due to the lack of evidence-based medical evidence on the efficacy and safety of EF for the treatment of POP, the current systematic review and meta-analysis was carried out aimed at evaluating the curative effects and safety profile of EF treatment for POP in order to provide decision making references for clinical research. METHODS: The PubMed, Cochrane Library, EMBASE, Web of Science, CNKI, Wanfang, and VIP databases were searched from the date of inception to 11 August 2024. The outcomes of effectiveness and safety of included studies were collected to conduct meta-analysis or systematic review. RESULTS: A total of 6 RCTs were included in this study, involving 838 participants. Overall, our results revealed that the experimental group (EG) had comparable results of efficacy to the control group (CG). The lumbar vertebra bone mineral density (BMD) was statistically different compared to the CG (MD = 0.03; 95% CI: 0.01, 0.04; p = 0.0003), but the clinical significance deserved consideration because the 95% CI nearly crossed the invalid line. The femoral neck BMD was neither statistically different nor clinically different between two groups (MD = 0.00; 95% CI: 0.01, 0.02; p = 0.67). The total complication rates were comparable among the two groups (RR = 0.68; 95% CI: 0.39, 1,19; p = 0.18). The quality of the evidence of the present study was judged as moderate and low based on the GRADE analysis. CONCLUSION: EF treatment exhibited good curative effects and safety. The result was comparable to the CG, including other Chinese patent medicines and calcium and vitamin D supplements. The EF treatment was proved to be a reliable alternative option for POP.

08
CLINICAL STUDY Phytomedicine (2023) PMID: 37573807 ↗
Neurovascular glial unit: A target of phytotherapy for cognitive impairments.
Clinical Trial Synthesis 2023 Clinical Study published in Phytomedicine. Key conclusion: CONCLUSIONS: Herbal medicines demonstrate great potential to prevent cognitive impairment.
View Original PubMed Abstract ↓

BACKGROUND: Neurovascular glial unit (NVGU) dysfunction has been reported to be an early and critical event in the pathophysiology of Alzheimer's disease (AD) and vascular dementia (VD). Although herbal medicines, with their favorable safety profiles and low adverse effects, have been suggested to be useful for the treatment of cognitive impairment, the potential role of the NVGU as the target of the effects of herbal medicines is still unclear. PURPOSE: This review aimed to retrieve evidence from experimental studies of phytopharmaceuticals targeting the NVGU for the treatment of cognitive impairment in AD and VD, and discussed the potential of phytopharmaceuticals to improve cognitive impairment from the perspective of the NVGU. STUDY DESIGN AND METHODS: We systematically searched PubMed, Google Scholar, Web of Science, and CNKI. The keywords used for searching information on the NVGU in the treatment of cognitive impairments included "Alzheimer's disease," "Vascular dementia," "Herbal medicines," "Natural products," "Neurovascular," "Adverse reaction," and "Toxicity, etc." We selected studies on the basis of predefined eligibility criteria. RESULTS: NVGU mainly consists of endothelial cells, pericytes, astrocytes, microglia, oligodendrocytes, and neurons, and damage to these cells can induce cognitive impairment by impairing the blood-brain barrier (BBB) and cerebral blood flow (CBF) as well as neuronal function. The active components of herbal medicines, including Ginkgo biloba L., Ginseng Radix et Rhizoma, Epimedium Folium, Chuanxiong Rhizoma, Carthami flos, and Acorus tatarinowii Schott, as well as traditional Chinese medicine prescriptions have shown the potential to improve BBB function and increase CBF to prevent cognitive impairment by inhibiting astrocyte and microglia activation, protecting oligodendrocyte myelin function, reducing neuronal apoptosis, and promoting angiogenesis. CONCLUSIONS: Herbal medicines demonstrate great potential to prevent cognitive impairment. Multiple components from herbal medicines may function through different signaling pathways to target the NVGU. Future studies using novel drug-carrier or delivery systems targeting the

09
SYSTEMATIC REVIEW Journal of ethnopharmacology (2024) PMID: 37544344 ↗
A systematic review of traditional uses, phytochemistry, pharmacology and toxicity of Epimedium koreanum Nakai.
Clinical Trial Synthesis 2024 Systematic Review published in Journal of ethnopharmacology. Key conclusion: CONCLUSION: Based on recent domestic and international research investigations, E.
View Original PubMed Abstract ↓

ETHNOPHARMACOLOGICAL RELEVANCE: Epimedium koreanum Nakai (E. koreanum), a member of the genus Epimedium in the family Berberidaceae, is a well-known and well-liked traditional herb used as a "kidney tonic". For thousands of years, it has been utilized for renal yang deficiency, impotence, spermatorrhea, impotence, weakness of tendons and bones, rheumatic paralysis and discomfort, numbness, and constriction. AIM OF THE STUDY: The paper aims to comprehensively in-depth, and methodically review the most recent research on the traditional uses, phytochemistry, pharmacology, and toxicity of E. koreanum. MATERIALS AND METHODS: Scientific databases including Web of Science, PubMed, Google Scholar, Elsevier, Springer, ScienceDirect, Baidu Scholar, and CNKI and medicine books in China were searched for relevant information on E. koreanum. RESULTS: In traditional uses, E. koreanum is frequently used to treat various diseases like erectile dysfunction, infertility, rheumatoid arthritis, osteoporosis, asthma, kidney-yang deficiency syndrome, etc. To date, more than 379 compounds have been discovered from various parts of E. koreanum, including flavonoids, lignans, organic acids, terpenoids, hydrocarbons, dihydrophenanthrene derivatives, alkaloids, and others. Research has revealed that the compounds and crude extracts have a wide range of pharmacological effects on the reproductive, cardiovascular, and nervous systems, as well as anti-osteoporosis, anti-tumor, antioxidant, anti-inflammatory, immunomodulatory, hepatoprotective, and antiviral properties. Besides, the crude extracts show potential hepatotoxicity. CONCLUSION: Based on recent domestic and international research investigations, E. koreanum contains a wealth of chemical components with pronounced pharmacological activities. Its traditional uses are numerous, and the majority of these traditional uses have been supported by contemporary pharmacological investigations. Crude extracts, on the other hand, can result in hepatotoxicity. Therefore, additional in vivo and in vitro experimental research on the pharmacology and toxicology of E. koreanum are required in the future to assess its safety and efficacy. This will

10
META-ANALYSIS Frontiers in pharmacology (2022) PMID: 35431937 ↗
Epimedium for Osteoporosis Based on Western and Eastern Medicine: An Updated Systematic Review and Meta-Analysis.
Clinical Trial Synthesis 2022 Meta-Analysis published in Frontiers in pharmacology involving n = 1,017 participants; statistical significance reported at p = 0.03 (SMD 2.33). Key conclusion: No significant publication bias was identified based on statistical tests (t = 0.81, p =
View Original PubMed Abstract ↓

Background: The efficacy of conventional pharmacotherapy on osteoporosis was limited and accompanied with serious side effects. Epimedium might have the potential to be developed as agents to treat osteoporosis. The present systematic review and meta-analysis integrating Western medicine and Eastern medicine ("WE" medicine) was to evaluate the efficacy of Epimedium on osteoporosis. Methods: Eleven electronic databases were searched to identify the randomized controlled trials (RCTs) comparing Epimedium as an adjunctive or alternative versus conventional pharmacotherapy during osteoporosis. Bone mineral density (BMD), effective rate, and Visual Analog Scale (VAS) were measured as primary outcomes. The secondary outcomes were pain relief time, bone metabolic markers, and adverse events. Research quality evaluation was conducted according to the modified Jadad scale. Review Manager 5.4 was utilized to perform analyses, and the data were pooled using a random-effect or fixed-effect model to calculate the weighted mean difference (WMD), standardized mean difference (SMD), risk ratio (RR), and 95% confidence intervals (CI). Results: Twelve RCTs recruiting 1,017 patients were eligible. Overall, it was possible to verify that, in the Epimedium plus conventional pharmacotherapy group, BMD was significantly improved (p = 0.03), effective rate was significantly improved (p = 0.0001), and VAS was significantly decreased (p = 0.01) over those in control group. When compared to conventional pharmacotherapy, Epimedium used alone improved BMD (p = 0.009) and effective rate (p < 0.0001). VAS was lower (p < 0.00001), and the level of alkaline phosphatase (ALP) was significantly decreased (p = 0.01) in patients taking Epimedium alone compared with those given conventional pharmacotherapy. Results of subgroup analyses yielded that the recommended duration of Epimedium as an adjuvant was >3 months (p = 0.03), the recommended duration of Epimedium as an alternative was ≤3 months (p = 0.002), and Epimedium decoction brought more benefits (SMD = 2.33 [1.92, 2.75]) compared with other dosage forms. No significant publication bias was identified based on statistical tests (t = 0.81, p =

RELATED MONOGRAPHS

Related Monographs in This Category