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Pharmacognosy Research
An Open Access Journal in Pharmacognosy and Natural Products

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Binding mode of rutin (A) and acarbose (B) inside of the active site of α-glucosidase
Evaluation of Acute Toxicity of Plants’ Mixture Used in Traditional Treatment of Kidney Diseases in Morocco
Efficacy of Topical Herbal Remedies for Insomnia in Iranian Traditional Medicine
(a) Extraction of Oleuropein from Olive leaf; (b) concentrated extract of Olive leaf
Structure of Physalis angulata L. (A) Plant parts, a: General aspect of the branch; b: Primary and secondary roots; c: Corolla in front view; d: Reproductive structures: Stamens and pistil (ovary and stigma); e: Fruit wrapped in the fruitful cup; f: Fruit; g: Seed. (B) Flower, (C) Fruit. P. angulata growing in an experimental field at the Horto Florestal Experimental Unit of the Universidade Estadual de Feira de Santana, Bahia, Brazil
Experimental procedures to validate Manuka degradation over time and train bacteria to tolerate concentrations that were lethal upon the second exposure (70 mg/mL). G1 bacteria were a population exposed to Manuka only once. Only 24 h of incubation in 24‑h‑old Manuka was needed to observe growth, while 48 h of incubation was required to observe growth in fresh Manuka, validating partial degradation of honey during incubation. (Full page width)
Polyphenolic compositions of the acetone and methanol extracts of Lauridia tetragona. Values are means a standard deviation, n = 3. Set of bars with the same letter are not significantly different (P ˂ 0.05)
2,2‑Diphenyl‑1‑picrylhydrazyl radical scavenging activity of the extracts of Geranium robertianum and Vitamin C. All values are expressed as mean of triplicate ± standard deviation
Solanum seaforthianum Andr. aerial parts showing leaves, flowers, and fruits
Pre‑exposure treatment of Datura (ayurvedic) extracts against a challenge dose of 10 LD50 challenged virus standard strain of fixed rabies virus. The results are expressed as standard error of the mean for each Group
Anti‑inflammatory Effect of an Extract of Agave americana on Experimental Animals
Effect of methanolic extract of Solanum xanthocarpum and Tinospora cordifolia on thrombin activity in vitro
Structure of abacavir
Optimized high‑performance liquid chromatography of caffeine
High‑pressure liquid chromatography chromatogram of methanol extract and ultraviolet chromatogram showing the presence of isovitexin fraction and ultraviolet chromatogram of triterpene acetate. E = Peak 4
Polyphenolic contents of the Bulbine abyssinica fractions
The viability percentage PC12 cells in the presence of different concentrations of the extracts of (a) Artemisia turanica, (b) Artemisia Aucheri, and (c) Artemisia turcomanica. The cell viability was determined by 3‑(4,5‑Dimethylthiazol‑2‑yl)‑2,5‑diphenyltetrazolium bromide assay after 24 h and exposure as described in materials and methods. Data are expressed as the mean ± standard error of the mean of three separate experiments
Structure of demethoxymatteucinol from Syzygium aqueum
Comparison of percentages of apoptosis induced by methanolic extract and its n‑hexane fraction of three‑independent experiments in HeLa cells, using caffeic acid phenethyl ester and DMSO as negative and positive controls, respectively. *Statistical significance on the comparison with the negative control, P < 0.05
Effect of Musa sapientum stem extract on kindling (mean seizure score) following administration of pentylenetetrazole (30 mg/kg) in mice
Scheme of isolation process
The novel blend alone or in combination with whey protein supplement attenuated body weight gain during high‑fat diet. Data are expressed as mean values ± standard error of the mean (a) body weight at baseline and the last day of the study and (b) body weight change over time. Within‑group comparison: *Indicate values significantly different from baseline (P < 0.05). Between‑group comparison: groups that do not share a common letter are statistically different (P < 0.05)
Antioxidant capacities FRAP, TEAC and ORAC (a, b and c respectively) and concentration of conjugated dienes (d) in serum of rats from control and experimental groups. (*P<0.05, **P<0.001, ***P<0.0001, ns = Differences not statistically significant)
Biochemical Screening and Determination of Bioactive Components of Commercially Cultured Pacific White Shrimp Penaeus vannamei
The effects induced on Caco‑2 cell’s proliferation by methanolic (a) and dichloromethane (b) extracts of algae (1 mg/mL) (% of control) with highest activity (>50%) after 12 h, 24 h, and 48 h obtained by 3‑[4, 5‑dimethylthiazol‑2‑yl]‑2, 5‑diphenyl tetrazolium bromide method. Each column represents the mean of eight experiments per group; vertical lines show standard error of the mean. #P < 0.01 compared with control
Phytochemical content of the different solvent fractions of Phragmanthera capitata in standard equivalents Values are mean ± standard deviation of three replications. Set of bars with different letters are significantly different (P < 0.05)
Chemical structures of ursolic acid (1), oleanolic acid (2), squalene (3), chlorophyll a (4), wrightiadione (5), and α‑amyrin acetate (6) from Wrightia pubescens
Antibacterial activity of solvent extracts of Zingiber nimmonii rhizome determined by agar well diffusion method
Renal caspase 3 activity
Effect of Phytocee™ on average daily feed intake values is expressed as mean ± standard error of the mean; n = 6 ***P < 0.001 as compared to heat stress control based on one‑way analysis of variance followed by Dunnett’s multiple comparison test using SPSS
Effect of the oral pretreatment of methanolic extract of branches of Spondias tuberosa gastric lesions induced by ethanol in mice
Sample pictures (a) TL1_180_21 (Hedera helix); (b) TL1_180_19 (Hedera nepalensis)
Antidiabetic Activity of Hydroalcoholic Extract of Myrtus communis (Myrtle) Fruits in Streptozotocin‑Induced and Dexamethasone‑Induced Diabetic Rats
Photomicrographs of the cell division phases of meristematic cells
Fractionation of bark extract in n-hexane and ethyl acetate through separating funnel for thin.layer chromatographic analysis
High‑performance liquid chromatography chromatograms of representative
Aristolochia esperanzae Kuntze
Secondary Metabolites from Lichen Usnea longissima and its Pharmacological Relevance
Cell cycle profile of F1‑ and camptothecin‑treated MDA‑MB‑231 for (a) 24 h, (b) 48 h, and (c) 72 h
Morphology of aerial parts of Euphorbia trirucalli
The effects of lupinifolin on sucrose-dependent biofilm formation of Streptococcus mutans
Corynaea crassa Hook. f. in natural habitat
Aspergillus flavus
Comparative Evaluation of in vitro Antioxidant Activities and High‑Performance Liquid Chromatography Fingerprinting of Fruit Peels Collected from Food Processing Industry Wastes
Anticataract Activity of Forskolin by Inhibiting Polyol Pathway for the Prevention of Diabetic Complication
Effect of curcumin loaded magnesium oxide nanoparticles and curcumin loaded solid lipid nanoparticles on acetylcholine content in different brain regions (cerebral cortex: Cerebellum) of albino rats exposed to Al
 DPPH radical scavenging activity
Calotropis procera plant showing its long and slender stem (a) and fruit (b)

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Chromatogram of GCMS of Eranda moola Niruha basti
GC-MS Analysis of an Ayurveda Formulation Erandamula Niruha Basti (Medicated Therapeutic Enema)
Jun 27, 2025 - 10:54
Morphological and anatomical features of Cajanus scarabaeoides leaf. (a) Habit of the Cajanus scarabaeoides showing pinnately compound leaves. (b) Transverse section of the leaf showing internal anatomy including epidermis, mesophyll, vascular bundles, and glandular trichomes. (c) Vein islet and veinlet termination pattern observed in a cleared leaf preparation. (d) Surface view of the lower epidermis showing paracytic stomata. (e) Microscopic view showing a unicellular trichome emerging from the epidermal
Pharmacognostical and Phytochemical Screening of Leaves of Cajanus Scarabaeoides (L.) Thouars
Jun 24, 2025 - 23:13
The in vitro Antioxidant Activity of OREE and ORNHEX. Data are mean±SEM (Each experiment has triplicate values). EE-Ethanolic extract; nHEX-n Hexane extract; AA-Ascorbic acid; GA-Gallic acid
Phytochemical Extraction, Screening, GCMS Analysis and Antioxidant Properties of Ophiorrhiza recurvipetala
Jun 24, 2025 - 23:10
Structure of diosgenin
Development and Validation of an HPLC Method for Diosgenin, A Bioactive Compound in the Rhizomes of Chamaecostus cuspidatus
Jun 24, 2025 - 23:05
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Pleiotropic effects of cinnamon
Cinnamon: Mystic Powers of Minute Ingredient
GRAPHICAL ABSTRACT
Traditional and Herbal Medicines: Opportunities and Challenges
Kapikacchu: The Brain Medicine
Kapikacchu: The Brain Medicine

About

Pharmacognosy Research (Pharmacogn Res.)

[ISSN: Print -0976-4836, Online - 0974-8490] [http://www.phcogres.com], It provides peer-reviewed original research articles from the field of Natural Products. The journal serves an international audience of scientists and researchers in a variety of research and academia by quickly disseminating research findings related to Medicinal Plants and Natural Products.

It is a peer reviewed journal aiming to publish high quality original research articles, methods, techniques and evaluation reports, critical reviews, short communications, commentaries and editorials of all aspects of medicinal plant research. The journal is aimed at a broad readership, publishing articles on all aspects of pharmacognosy, and related fields. The journal aims to increase understanding of pharmacognosy as well as to direct and foster further research through the dissemination of scientific information by the publication of manuscripts. The submissions of original contributions in all areas of pharmacognosy are welcome.

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(+)-Catechin
(-)-Epicatechin
1
1- diphenyl-2-picrylhydrazyl
1-diphenyl-2-picryl-hydrazil); Ferric Reducing Antioxidant Power
1-diphenyl-2-picrylhydrazyl-radical scavenging assay
10‑di‑epi‑Cubenol
12-didehydroandrographolide
12‑epilycodoline N‑oxide
14-deoxy-11
14-deoxyandrographolide
15-lipoxygenase inhibitory activity
16S ribosomal RNA
16S rRNA
18S Ribosomal ribonucleic acid
1H‑NMR
1‑chloro‑2
1‑Diphenyl‑1‑picrylhydrazyl
1‑diphenyl‑2‑picrylhydrazyl
1‑Diphenyl‑2‑picrylhydrazyl
1‑diphenyl‑2‑trinitrophenylhydrazine scavenger
2
2-Benzenedicarboxylic acid diisooctyl ester
2-diphenyl-1-picrylhydrazyl
2-diphenyl-1-picrylhydrazylDPPH
25‑dien‑3‑ol.
2‑diphenyl‑1‑picrylhydrazyl
2‑diphenyl‑1‑picrylhydrazyl radical
2’ azino bis (ethylbenzthiazolene‑6‑sulfonic acid) radical cation assay
2’‑azino‑bis (3‑ethylbenzothiazoline‑6‑sulfonic acid)
2’‑Diphenyl‑1‑picrylhydrazyl
3
3 (4
3 β-taraxerol.
3(4
3-(4
3-dimethyl
3CLPRO
3T3-L1
3T3‑L1
3T3‑L1 cell lines
3‑(4
3‑(S)‑hexahydroxydiphenoyl‑D‑glucose
3’
3’‑hydroxy‑5
4
4-caffeoylquinic acid
4NQO
4‑dinitrobenzene
4‑hydroxyacetophenone
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