Herbal Medicine In Asia Research Articles

Protective Effects of Cervus elaphus and Eucommia ulmoides Mixture (KGC01CE) on Muscle Loss and Function in Aged Rats.

Sarcopenia is a condition characterized by a progressive loss of muscle mass and function which are influenced by certain factors such as aging, nutritional deficiencies, and chronic diseases. Despite numerous efforts to prevent or treat sarcopenia, effective therapeutic options for this disease remain limited. This study aims to evaluate the effects of KGC01CE treatment, a mixture of Cervus elaphus (Ce) and Eucommia ulmoides (Eu), which are well-known traditional herbal medicines in Asia, on age-related muscle loss and functional decline in aged rats. KGC01CE has been found to be more effective than the individual extracts in inhibiting dexamethasone (DEX)-induced muscle atrophy and improving muscle mass and grip strength in C2C12 cells and aged rats. Moreover, animal studies were conducted to determine the minimum effective dose, and a 12-week oral administration of KGC01CE treatment at doses of 50, 100, and 200 mg/kg to 15-month-old aged rats resulted in a dose-dependent increase in lean mass, muscle mass, grip strength, and muscle cross-sectional area (CSA), which had decreased due to aging. Furthermore, it was shown that KGC01CE activated the phosphatidylinositol 3-kinase (PI3K)/Akt pathway and inhibited the expression of muscle-degrading proteins MuRF, Atrogin-1, and myostatin. These results suggest that KGC01CE treatment may effectively prevent muscle loss and functional decline, providing a novel therapeutic strategy for sarcopenia.

Characterization and Molecular Engineering of a N-Methyltransferase from Edible Nelumbo nucifera Leaves Involved in Nuciferine Biosynthesis.

Lotus leaf, traditionally used as both edible tea and herbal medicine in Asia, contains nuciferine, a lipid-lowering and weight-loss compoud. The biosynthetic pathways of nuciferine in Nelumbo nucifera remain unclear. We characterized a specific N-methyltransferase, NnNMT, which had a novel function and catalyzed only nuciferine synthesis from the aporphine-type alkaloid N-nornuciferine. The expression profile of NnNMT was in agreement with BIA accumulation patterns in four tissues from three varieties, suggesting that NnNMT is involved in nucleiferine biosynthesis in Nelumbo nucifera. Protein engineering based on molecular docking and dynamic simulations revealed key residues (Y98, H208, F256, Y81, F329, G260, P76, and H80) crucial for NnNMT activity, with the F257A mutant showing increased efficiency. These findings enhance our understanding of aporphine alkaloid biosynthesis and support the development of lotus-based functional foods and medicinal applications.

Inhibitory Effects of Reynoutria japonica Houtt. on Pain and Cartilage Breakdown in Osteoarthritis Based on Its Multifaceted Anti-Inflammatory Activity: An In Vivo and In Vitro Approach.

In the past 30 years, the number of years lived with disability due to osteoarthritis (OA) has doubled, making it an increasing global health burden. To address this issue, interventions that inhibit the progressive pathology driven by age-related low-grade inflammation, the primary mechanism of OA, are being actively pursued. Recent investigations have focused on modulating the age-related low-grade inflammatory pathology of this disease as a therapeutic target. However, no agent has successfully halted the disease's progression or reversed its irreversible course. Reynoutria japonica Houtt. (RJ), a promising East Asian herbal medicine, has been utilized for several diseases due to its potent anti-inflammatory activity. This study aims to determine RJ's capacity to inhibit OA symptoms and associated inflammation, exploring its potential for further development. In vivo and in vitro experiments demonstrated RJ's anti-OA activity and modulation of multifaceted inflammatory targets. RJ significantly inhibited pain, gait deterioration, and cartilage destruction in a monosodium iodoacetate-induced OA rat model, with its analgesic effect further confirmed in an acetic acid-induced writhing model. RJ exhibited consistent anti-inflammatory activity against multiple targets in serum and cartilage of the OA rat model and lipopolysaccharide-induced RAW 264.7 cells. The inhibition of inflammatory cytokines, including interleukin-1β, interleukin-6, matrix metalloproteinase-13, tumor necrosis factor-α, and nitric oxide synthase 2, suggests that RJ's alleviation of OA manifestations relates to its multifaceted anti-inflammatory activity. These results indicate that RJ merits further investigation as a disease-modifying drug candidate targeting OA's inflammatory pathology. To further characterize the pharmacological properties of RJ, future studies with expanded designs are warranted.

Plant-Based Therapies for Atopic Dermatitis Management: A Review

Dermatological issues pose a frequent challenge for small clinical practitioners, presenting a spectrum of conditions encompassing otitis, pyoderma, anal sac problems, flea allergy, and atopic dermatitis (AD). Atopic Dermatitis (AD) is a chronic and recurring skin condition characterized by distributed skin lesions. In recent decades, researchers have shown a keen interest in AD due to its increased prevalence in developed countries. While various treatment strategies, including biological and immune modulators, are available for AD, each has certain limitations. Researchers have exhibited a significant interest in managing AD with herbal medicines. The use of herbal drugs for AD could potentially eliminate local and systemic adverse effects associated with long-term corticosteroid use, as well as reduce the high cost of therapy with biological drugs. This review discusses traditional East Asian herbal medicines as well as scientific data related to newer herbal extracts or compositions for the treatment of AD. The paper also delves into in vivo animal models and in vitro cell cultures that have been investigated with herbal medicines to establish a potential role in the treatment of AD. In conclusion, herbal medicines could serve as a better and safer complementary and alternative treatment option for AD.

Anti-Amnesic Effect of Agastache rugosa on Scopolamine-Induced Memory Impairment in Mice.

Agastache rugosa, a traditional Asian herbal medicine, is primarily used for digestive problems; yet, its cognitive benefits remain unexplored. This study evaluated the anti-amnesic effects of A. rugosa extract (ARE) on scopolamine (SCO)-induced memory impairment in mice. Mice received 100 or 200 mg/kg ARE orally for 5 days, followed by SCO injection. The ARE demonstrated significant antioxidant (DPPH IC50: 75.3 µg/mL) and anti-inflammatory effects (NO reduction). Furthermore, the ARE significantly improved memory performance in the passive avoidance test (escape latency: 157.2 s vs. 536.9 s), the novel object recognition test (novel object preference: 47.6% vs. 66.3%) and the Morris water maze (time spent in the target quadrant: 30.0% vs. 45.1%). The ARE reduced hippocampal acetylcholinesterase activity (1.8-fold vs. 1.1-fold) while increasing choline acetyltransferase (0.4-fold vs. 1.0-fold) and muscarinic acetylcholine receptor subtype I (0.3-fold vs. 1.6-fold) expression. The ARE improved hippocampal neurogenesis via doublecortin- (0.4-fold vs. 1.1-fold) and KI-67-positive (6.3 vs. 12.0) cells. Therefore, the ARE exerts protective effects against cognitive decline through cholinergic system modulation and antioxidant activity, supporting its potential use as a cognitive enhancer.

Herbal medicines for long COVID: A phase 2 pilot clinical study

BackgroundInfections of Coronavirus Disease-2019 (COVID-19) can cause long-term effects known as long COVID. This pilot study aimed to evaluate the feasibility of a clinical study as well as the efficacy and safety of traditional East Asian herbal medicines in alleviating fatigue and cognitive dysfunction in patients with long COVID. MethodsThis prospective pilot study investigated the use of three types of herbal medicines, Bojungikgi-tang (BIT), Kyungok-go (KOG), and Cheonwangbosim-dan (CBD), for a 12-week period as potential treatments for fatigue and cognitive dysfunction in patients with long COVID. Forty-five patients with long COVID were recruited, and one of three drugs was given based on the patient's symptoms and pattern identification. The effect of herbal medications on fatigue and cognitive function outcomes was assessed over a 36-week period, with patient adherence closely monitored. ResultsAfter 12 weeks of herbal drug administration, fatigue symptoms improved significantly across all groups, with treatment success rates of 80 %, 53.33 %, and 46.67 % in the BIT, KOG, and CBD groups, respectively. However, cognitive dysfunction symptoms showed less improvement, with treatment success rates of 40 %, 46.67 %, and 13.33 % in the BIT, KOG, and CBD groups, respectively. All adverse events reported were mild and unrelated to the medication. The study design was found to be feasible with high medication adherence. ConclusionsThis study demonstrated the feasibility of conducting a clinical trial with three herbal medicines to treat long COVID symptoms like fatigue and cognitive dysfunction.

Cultivation optimization promotes ginsenoside and universal triterpenoid production by engineered yeast

Ginseng, a cornerstone of traditional herbal medicine in Asia, garnered significant attention for its therapeutic potential. Central to its pharmacological effects are ginsenosides, the primary active metabolites, many of which fall within the dammarane-type and share protopanaxadiol as a common precursor. Challenges in extracting protopanaxadiol and ginsenosides from ginseng arise due to their low concentrations in the roots. Emerging solutions involve leveraging microbial cell factories employing genetically engineered yeasts. Here, we optimized the fermentation conditions via the Design of Experiment, realizing 1.2 g/L protopanaxadiol in simple shake flask cultivations. Extrapolating the optimized setup to complex ginsenosides, like compound K, achieved 7.3-fold (0.22 g/L) titer improvements. Our adaptable fermentation conditions enable the production of high-value products, such as sustainable triterpenoids synthesis. Through synthetic biology, microbial engineering, and formulation studies, we pave the way for a scalable and sustainable production of bioactive compounds from ginseng.

Efficacy and Safety of Orally Administered East Asian Herbal Medicine Combined with Narrowband Ultraviolet B against Psoriasis: A Bayesian Network Meta-Analysis and Network Analysis.

Psoriasis is a chronic, immune-mediated inflammatory skin disease with many complications and a poor prognosis that imposes a significant burden on individuals and society. Narrowband ultraviolet B (NB-UVB) represents a cost-effective non-drug therapeutic intervention for psoriasis. East Asian herbal medicine (EAHM) is currently being investigated for its potential as a safe and effective psoriasis treatment. Consequently, it has the potential to be employed as a combination therapy with NB-UVB. The objective was to ascertain the efficacy and safety of the EAHM with NB-UVB combination therapy and to identify important drugs for further research. In this study, randomized controlled trials (RCTs) were retrieved from ten databases in Korea, China, and Japan. All statistical analyses were conducted using R software version 4.3.0. The primary outcomes were the Psoriasis Area and Severity Index (PASI) and the incidence rate of adverse events (AEs), while the secondary outcomes were hematologic markers and the Dermatology Life Quality Index (DLQI), which reflect the immune-mediated inflammatory pathology of psoriasis. The analysis of 40 RCTs, including 3521 participants, demonstrated that EAHM with NB-UVB combination therapy exhibited a statistically significant superiority over NB-UVB monotherapy with respect to primary and secondary outcomes. The Bayesian network meta-analysis revealed that Investigator Presciption 3 and Ziyin Liangxue Decoction exhibited a consistent relative advantage with respect to each PASI-based efficacy metric. The network analysis estimated the potential influence ranking for all individual herbs according to PageRank centrality. The findings of this study suggest that EAHMs co-administered with NB-UVB may provide additional efficacy and safety-related benefits for patients with psoriasis. However, the quality of evidence is still low, and further high-quality trials are needed to reach more definitive conclusions.

Emerging Roles of Natural Compounds in Osteoporosis: Regulation, Molecular Mechanisms and Bone Regeneration.

Bone health is a critical aspect of overall well-being, and disorders such as osteoporosis pose significant challenges worldwide. East Asian Herbal Medicine (EAHM), with its rich history and holistic approach, offers promising avenues for enhancing bone regeneration. In this critical review article, we analyze the intricate mechanisms through which EAHM compounds modulate bone health. We explore the interplay between osteogenesis and osteoclastogenesis, dissect signaling pathways crucial for bone remodeling and highlight EAHM anti-inflammatory effects within the bone microenvironment. Additionally, we emphasize the promotion of osteoblast viability and regulation of bone turnover markers by EAHM compounds. Epigenetic modifications emerge as a fascinating frontier where EAHM influences DNA methylation and histone modifications to orchestrate bone regeneration. Furthermore, we highlight EAHM effects on osteocytes, mesenchymal stem cells and immune cells, unraveling the holistic impact in bone tissue. Finally, we discuss future directions, including personalized medicine, combinatorial approaches with modern therapies and the integration of EAHM into evidence-based practice.

The Role of Ginseng as an Anti-Asthmatic Agent

Objective: Ginseng is one of the most commonly used herbal medicines in Asia owing to its anti-inflammatory, cognitive, and immune effects. Many of these properties can be attributed to the ginsenosides, major pharmacological agents of ginseng. Ginsenosides influence the innate and humoral immune responses, and previous studies have described ginsenosides as potential therapeutic agents for respiratory disorders. Asthma affects over 300 million people worldwide and is underdiagnosed and undertreated, despite the availability of diagnostic tools and therapies. This review summarizes current studies on ginseng as an anti-asthmatic agent in murine models. Methods: PubMed, EMBASE, and Cochrane databases were used to conduct a systematic search of published literature until March 29, 2023. Eight full-text articles that examined the association between ginseng and asthma were reviewed. Results: The findings of this study demonstrate that Korean red ginseng, Korean white ginseng, and ginsenosides exert an anti-asthmatic effect, primarily through reduction in mucus cell hypersecretion, inflammatory cell infiltration, Th2 cytokines, and inhibition of inflammatory NFB and COX2 pathways. Conclusion: We suggest that ginseng has a therapeutic potential for the treatment of asthma. As this analysis utilized murine models, the anti-asthmatic effects of ginseng must be further supported by laboratory studies and clinical trials.

Anticoronavirus activity of rhizome of Dryopteris crassirhizoma via multistage targeting of virus entry and viral proteases, Mpro and PLpro

Ethnopharmacological relevanceThe rhizome of Dryopteris crassirhizoma Nakai (Dryopteridaceae, RDC), a traditional East Asian herbal medicine, possesses a broad spectrum of medicinal properties, including anti-inflammatory, anticancer, antibacterial, and antiviral activities. Aim of the studyThis study investigates the 30% ethanolic extract of RDC's antiviral potential against human coronavirus OC43 (HCoV-OC43), severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and its variants infections. Materials and methodsA 30% ethanolic extract of RDC or its components, filixic acid ABA (PubChem CID: 15081408) and dryocrassin ABBA (PubChem CID: 3082025) were treated with Human Coronavirus infection (HCoV-OC43, SARS-CoV-2 and its variants). The base peak chromatogram of RDC was evaluated using UPLC-Q/TOF Mass to identify the RDC, and the quantitative analysis of RDC compounds was performed using LC-MS/MS. A cytopathic effect (CPE) reduction assay, Western blot, immunofluorescence staining of viral protein expression, and qRT-PCR were performed to quantify the viral RNA copy numbers and determine the antiviral activity. The time-of-addition assay, the virus attachment, penetration, and virucidal assays, and SARS-CoV-2 Mpro and PLpro activity assay were used to elucidate the mode of action. ResultsRDC exhibited dose-dependent inhibition of HCoV-OC43–induced cytopathic effects, reducing viral RNA copy numbers and viral protein levels. Time-of-addition assays indicated that RDC targets the early stages of the HCoV-OC43 life cycle, inhibiting virion attachment and penetration with virucidal activity. Notably, filixic acid ABA and dryocrassin ABBA, constituents of RDC, reduced HCoV-OC43 viral RNA loads. Furthermore, RDC effectively blocked viral entry in pseudotyped lentivirus assays, involving spike proteins of SARS-CoV-2 Delta plus and South Africa variants, as well as control lentiviral particles expressing vesicular stomatitis virus glycoprotein G. Additionally, RDC demonstrated inhibition of SARS-CoV-2 infection and its variants by targeting viral proteases, namely main protease (Mpro) and papain-like protease (PLpro). ConclusionsThese findings underscore RDC's multistage approach to targeting viral infections by impeding virus entry and inhibiting viral protease activity. Therefore, RDC holds promise as a potent, broad-spectrum anticoronaviral therapeutic agent.

Fermented Codonopsis lanceolata root extract exhibits anti-viral effects against influenza A infection by inhibiting neuraminidase activity and inflammatory responses

Codonopsis lanceolata, traditionally used in Asian herbal medicine to treat respiratory inflammation, contains various bioactive compounds, including saponins. The influenza A virus (IAV) is notorious for causing pandemics due to its ability to undergo antigenic shifts and drifts, complicating vaccine effectiveness and treatment approaches. This study investigates the protective and therapeutic effects of fermented C. lanceolata root extracts (FCLE) against IAV, comparing its efficacy with that of the original C. lanceolata root extracts (CLE) in both in vitro and in vivo models. FCLE demonstrated significantly higher antioxidant activity and an increased content of total polyphenols, saponins, and reducing sugars compared to CLE, although the content of lancemaside A was decreased in FCLE. FCLE also showed superior efficacy in reducing IAV-induced cytopathic effects and nucleocapsid protein expression in A549 cells, and virus titer in MDCK cells, particularly in post-treatment mode. However, CLE did not exhibit any protective effects against IAV infection. FCLE effectively inhibited neuraminidase (NA) activity and also tended to inhibit hemagglutinin. Furthermore, oral administration of FCLE at 100 mg/kg dramatically protected against lethal IAV infection, achieving a 100% survival rate, reducing virus titer, and ameliorating lung histopathological changes, with specific reductions in KC and IL-1β levels in bronchoalveolar lavage fluid (BALF). These results suggest that FCLE has considerable antiviral efficacy against IAV by both directly inhibiting viral replication via NA activity and orchestrating an antiviral immune response. Collectively, our findings indicate that FCLE could be a promising nutraceutical ingredient for respiratory health.

Anti-Inflammatory, Analgesic, Functional Improvement, and Chondroprotective Effects of Erigeron breviscapus (Vant.) Hand.-Mazz. Extract in Osteoarthritis: An In Vivo and In Vitro Study.

Osteoarthritis (OA) is a degenerative bone disease characterized by inflammation as a primary pathology and currently lacks therapeutic interventions to impede its progression. Erigeron breviscapus (Vant.) Hand.-Mazz. (EB) is an east Asian herbal medicine with a long history of use and a wide range of confirmed efficacy against cardiovascular and central nervous system diseases. The purpose of this study is to evaluate whether EB is worthy of further investigation as a treatment for OA based on anti-inflammatory activity. This study aims to assess the potential of EB as a treatment for OA, focusing on its anti-inflammatory properties. Analgesic effects, functional improvements, and inhibition of cartilage destruction induced by EB were evaluated in acetic acid-induced peripheral pain mice and monosodium iodoacetate-induced OA rat models. Additionally, the anti-inflammatory effect of EB was assessed in serum and cartilage tissue in vivo, as well as in lipopolysaccharide-induced RAW 264.7 cells. EB demonstrated a significant alleviation of pain, functional impairment, and cartilage degradation in OA along with a notable inhibition of pro-inflammatory cytokines, including interleukin-1β, interleukin-6, matrix metalloproteinases 13, and nitric oxide synthase 2, both in vitro and in vivo, in a dose-dependent manner compared to the active control. Accordingly, EB merits further exploration as a potential disease-modifying drug for OA, capable of mitigating the multifaceted pathology of osteoarthritis through its anti-inflammatory properties. Nonetheless, additional validation through a broader experimental design is essential to substantiate the findings of this study.

Determination of the Combined Effects of Asian Herbal Medicine with Calcium and/or Vitamin D Supplements on Bone Mineral Density in Primary Osteoporosis: A Systematic Review and Meta-Analysis.

To conduct a systematic review and meta-analysis to determine whether herbal medicine (HM) plus supplements such as calcium (Ca) or vitamin D (Vit.D) improves bone mineral density (BMD) compared to supplements alone in primary osteoporosis (OP) patients. We searched 5 databases for randomized controlled trials (RCTs) using HMs with supplements (Ca or Vit.D variants) as interventions for primary OP patients published until August 31, 2022. Meta-analysis using BMD score as the primary outcome was performed using RevMan 5.4 version. Risk of bias in the included studies was assessed useing RoB 2.0 tool. In total, 52 RCTs involving 4,889 participants (1,408 men, 3,481 women) were included, with average BMD scores of 0.690 ± 0.095g/cm2 (lumbar) and 0.625 ± 0.090g/cm2 (femoral neck). As a result of performing meta-analysis using BMD scores for all 52 RCTs included in this review, combination of HMs with Ca and Vit.D variants improved the BMD score by 0.08g/cm2 (lumbar, 38 RCTs, 95% CI: 0.06-0.10, p < 0.001, I2 = 97%) and 0.06g/cm2 (femoral neck, 19 RCTs, 95% CI: 0.04-0.08, p < 0.001, I2 = 92%)compared to controls. However, statistical significance of the lumbar BMD improvement disappeared after adjusting for potential publication bias. Our data suggest that combining of HM and supplements tends to be more effective in improving BMD in primary OP than supplements alone. However, caution is needed in interpretation due to the reporting bias and high heterogeneity among studies, and well-designed RCTs are required in the future.

Network analysis, in vivo, and in vitro experiments identified the mechanisms by which Piper longum L. [Piperaceae] alleviates cartilage destruction, joint inflammation, and arthritic pain.

Osteoarthritis (OA) is characterized by irreversible joint destruction, pain, and dysfunction. Piper longum L. [Piperaceae] (PL) is an East Asian herbal medicine with reported anti-inflammatory, analgesic, antioxidant, anti-stress, and anti-osteoporotic effects. This study aimed to evaluate the efficacy of PL in inhibiting pain and progressive joint destruction in OA based on its anti-inflammatory activity, and to explore its potential mechanisms using in vivo and in vitro models of OA. We predicted the potential hub targets and signaling pathways of PL through network analysis and molecular docking. Network analysis results showed that the possible hub targets of PL against OA were F2R, F3, MMP1, MMP2, MMP9, and PTGS2. The molecular docking results predicted strong binding affinities for the core compounds in PL: piperlongumine, piperlonguminine, and piperine. In vitro experiments showed that PL inhibited the expression of LPS-induced pro-inflammatory factors, such as F2R, F3, IL-1β, IL-6, IL-17A, MMP-1, MMP-2, MMP-3, MMP-9, MMP-13, NOS2, PTGS2, PGE2, and TNF-β. These mechanisms and effects were dose-dependent in vivo models. Furthermore, PL inhibited cartilage degradation in an OA-induced rat model. Thus, this study demonstrated that multiple components of PL may inhibit the multilayered pathology of OA by acting on multiple targets and pathways. These findings highlight the potential of PL as a disease-modifying OA drug candidate, which warrants further investigation.

The extract of an herbal medicine Chebulae fructus inhibits hepatocellular carcinoma by suppressing the Apelin/APJ system.

Introduction: Hepatocellular carcinoma (HCC) has been a highly common and pathological disease worldwide, while current therapeutic regimens have limitations. Chebulae Fructus, a common herbal medicine in Asia, has been documented to exert potential therapeutic effects on HCC in ancient medicine clinical practice. However, the molecular mechanism underlying its inhibitory effects on HCC requires further investigation. Methods: In this study, the anti-HCC effect of the aqueous extract of Chebulae Fructus (CFE) on human HCC and its underlying mechanism were evaluated. Assays including CCK8, EdU staining, crystal violet staining, cell clone formation, flow cytometry, wound healing, and transwell were used in vitro. The cell-derived xenograft (CDX) and patient-derived xenograft (PDX) models were used in vivo. Transcriptomics analysis, qRT-PCR, ELISA, IHC staining, and Western blotting were employed to determine the mechanism of action of CFE. Results: The results demonstrate that CFE effectively suppressed the proliferation and activity of HepG2 and PLC/PRF/5 HCC cells. CFE also induced apoptosis, and suppressed the migration and invasion abilities of these cells. Furthermore, CFE exhibited inhibitory effects on tumor growth in both H22 and PLC/PRF/5 mouse models, as well as in an HCC PDX model which is derived from patient tumor samples. Moreover, it was identified that CFE treatment specifically suppressed the Apelin/APJ system in HCC cells and tumor tissues. To investigate the role of the Apelin/APJ system in mediating the effects of CFE treatment, an APJ overexpressed cell model is established. Interestingly, it was found that the overexpression of APJ significantly diminished the inhibitory effects of CFE on HCC in vitro. Discussion: Collectively, this study provides compelling evidence that CFE exerts significant anti-HCC effects in cell and animal models. Moreover, our findings suggest that the Apelin/APJ system may play a vital role in the therapeutic effects of CFE against HCC.

Effectiveness and safety of East Asian herbal medicine for menopausal insomnia: a systematic review and meta-analysis.

Background: Menopausal insomnia significantly impacts the quality of life in women. East Asian herbal medicines (EAHMs) have been traditionally used in Asian countries, but their efficacy and safety require systematic evaluation. This systematic review and meta-analysis aimed to evaluate the effectiveness and safety of EAHM for treating menopausal insomnia. Methods: A comprehensive literature search was conducted across 10 electronic databases from inception until 19 July 2023. Randomized controlled trials (RCTs) investigating EAHM for menopausal insomnia were included. Two reviewers independently screened studies, extracted data, and assessed the risk of bias using the Cochrane risk of bias tool. The primary outcome was sleep quality, insomnia severity, and sleep architecture. Secondary outcomes included total effective rate (TER), menopausal symptoms, and adverse effects. Meta-analysis was conducted using a random-effects model, and the results were calculated as mean differences (MDs) or risk ratios (RRs) and their 95% confidence intervals (CIs). Also, the certainty of evidence was assessed using the GRADE approach. Results: A total of 70 RCTs involving 6,035 participants met the inclusion criteria. The most frequently used EAHMs were modified Suan Zao Ren Tang, and the most frequently used herbal component was Zizyphus jujuba Miller var. spinosa Hu ex H. F. Chou [Rhamnaceae; Zizyphi Semen]. Compared with sedative-hypnotics, EAHM significantly improved sleep quality, as measured by the Pittsburgh Sleep Quality Index (PSQI) (MD -2.18, 95% CI -2.56 to -1.80), and reduced menopausal symptoms, as assessed by the Kupperman Index (MD -4.92, 95% CI -6.03 to -3.80). Similar results were seen when EAHM was added to sedative-hypnotics. When EAHM was additionally used in sedative-hypnotics, similar benefits were shown for PSQI (MD -2.46, 95% CI -3.09 to -1.82) and the Kupperman Index (MD -4.64, 95% CI -5.07 to -4.21). EAHM was generally safer than sedative-hypnotics, with significantly fewer adverse reactions (RR 0.15, 95% CI 0.07-0.34). However, the certainty of evidence was moderate to low. Conclusion: EAHMs, alone or with sedative-hypnotics, may be effective and safe for improving sleep quality and managing menopausal symptoms. Future studies should include diverse populations, rigorous methodologies, and explore mechanisms of action to confirm these findings. Systematic Review Registration: [https://www.crd.york.ac.uk/prospero/display_record.php?], identifier [CRD42023446708].

Research Progress on Processing Technology of Refined Betel Nut in China: A Review

Betel nut is a traditional Asian herbal medicine and ranks as the fourth most common addictive substance in the world. Refined betel nut is made from the original fruit of the Areca catechu L. tree through complex traditional processes. Betel nut has various pharmacological effects, and the health effects of chewing refined betel nut have sparked significant concern. The optimization of processing techniques is essential in mitigating the harmful effects of refined betel nut products. This article reviews the current procedures, major limiting factors and technological innovations associated with refined betel nut production. Modern softening techniques including enzymatic treatment, steam explosion and microwave technology have been developed in the last two decades to improve the softness of betel nut fiber. To address the microbial contamination of products, automated production and nonthermal sterilization technologies such as irradiation are preferred. To prevent or delay the whitening and returning of the betel nut brine, an enhanced brine reaction, compound additives and strict control of environmental temperature and humidity can be essential. Chemical reagents, low-temperature preservation, modified atmosphere preservation and coating preservation are applied for the storage of fresh betel nuts. It was found that optimized processing methods and stringent regulatory measures are required to control the chemical pollution in betel nut products. The widespread integration of emerging technologies underscores the imperative need to update regulatory measures. Thus, we hope this review will offer research insights and theoretical references for reducing the harm associated with the processing technology, as well as the formulation of updated supervisory measures.

Identifying the Structural Components Responsible for the Antiproliferative Properties of Hydroxychavicol

Betel leaves are widely used as herbal medicine in Asia due to their antimicrobial properties. These properties have been attributed to the phenolic compound eugenol and its derivative, hydroxychavicol. Hydroxychavicol has also been shown to inhibit cancer cell proliferation. The main objective of this study was to investigate which structural components of hydroxychavicol are responsible for the antiproliferative property of this compound. Jurkat-E6 cells (JE6) were treated with increasing concentrations (5, 15, and 45 µM) of hydroxychavicol and structural variants of it for 48 h. The results of this study demonstrate that the catechol structure in hydroxychavicol is the structural component that exhibits the highest antiproliferative effect. More specifically, the data show that the six-carbon ring must be aromatic with the two hydroxyl groups attached in an ortho position. Furthermore, this study establishes that the oxygen in the hydroxyl groups has a vital role in the antiproliferative properties of catechol and hydroxychavicol.

Antioxidant Effect of the Ethyl Acetate Extract of Potentilla indica on Kidney Mitochondria of Streptozotocin-Induced Diabetic Rats.

Diabetes mellitus (DM) is a metabolic disorder characterized by persistent hyperglycemia. This state may lead to an increase in oxidative stress, which contributes to the development of diabetes complications, including diabetic kidney disease. Potentilla indica is a traditional medicinal herb in Asia, employed in the treatment of several diseases, including DM. In this study, we investigated the antioxidant effect of the ethyl acetate extract of Potentilla indica both in vitro and on kidneys of streptozotocin-induced diabetic male rats. Firstly, phytochemicals were identified via UPLC-MS/MS, and their in vitro antioxidant capabilities were evaluated. Subsequently, male Wistar rats were assigned into four groups: normoglycemic control, diabetic control, normoglycemic treated with the extract, and diabetic treated with the extract. At the end of the treatment, fasting blood glucose (FBG) levels, creatinine, blood urea nitrogen (BUN), and uric acid were estimated. Furthermore, the kidneys were removed and utilized for the determination of mitochondrial reactive oxygen species (ROS) production, mitochondrial respiratory chain complex activities, mitochondrial lipid peroxidation, glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), and catalase (CAT) activities. The in vitro findings showed that the major phytochemicals present in the extract were phenolic compounds, which exhibited a potent antioxidant activity. Moreover, the administration of the P. indica extract reduced creatinine and BUN levels, ROS production, and lipid peroxidation and improved mitochondrial respiratory chain complex activity and GSH-Px, SODk, and CAT activities when compared to the diabetic control group. In conclusion, our data suggest that the ethyl acetate extract of Potentilla indica possesses renoprotective effects by reducing oxidative stress on the kidneys of streptozotocin-induced diabetic male rats.