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Pharmacognosy Research
An Open Access Journal in Pharmacognosy and Natural Products

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Control group: Normal architecture of hepatic lobules in the form of hepatocytes is maintained and central vein is normal (×40)
Effects of the Mint Monoterpene (R)‑(+)‑Pulegone Evaluated by Functional Observational Battery: A Potential Short Method
Chromatographic profiles of the aqueous extract of Struthanthus marginatus (a) and 3‑trans‑caffeoylquinic acid, authentic standard, (b) obtained by liquid chromatography‑diode array detection at 280 nm. The inserted panel on the right shows the detailed ultraviolet spectrum of 3‑trans‑caffeoylquinic acid
The flowering branch of Lawsonia inermis
Efficacy of Salivary and Diastase Extracts of Piper betle in Modulating the Cellular Stress in Placental Trophoblast during Preeclampsia
Detection of Estrogenic, Antiestrogenic, and Drug Synergistic Activities of Seven Commercially Available Fruits by In Vitro Reporter Assays
Structures of compounds 1–8
Mitochondrial Nephrotoxicity induced by Tacrolimus (FK‑506) and Modulatory Effects of Bacopa monnieri (Farafakh) of Tabuk Region
High-performance liquid chromatography chromatogram of (a) estrone (Internal standard for analysis of terpenes) (b) Costus pictus extract
Histological analysis of the livers in carbon tetrachloride‑induced acute hepatotoxicity; Normal appearance of the livers of the control (a) and pomegranate seed oil‑treated (b) groups. The appearance of micro (arrowheads)‑ and macro (black thick arrows) vesicular fat vacuoles in all parenchyma and increased numbers of infiltrating mononuclear cells (black thin arrows), consisting predominantly of lymphocytes in carbon tetrachloride (c), and carbon tetrachloride + pomegranate seed oil‑(d) treated groups, Li
Screening and Validating of 1, 1‑Diphenyl‑2‑Trinitrophenylhydrazine Scavengers from Danshen‑Honghua Herbal Pair
Cytotoxicity activity of methanol extract and fractions of the stem and root bark of Pseudocedrela kotschyi against HeLa cell lines
Saponin of Momordica cymbalaria Exhibits Anti‑Inflammatory Activity by Suppressing the Expression of Inflammatory Mediators in Lipopolysaccharide‑Stimulated RAW264.7 Macrophages
Sodium dodecyl sulfate-polyacrylamide gel electrophoresis protein profiles of natural Cordyceps sinensis obtained from 26 producing areas. M, molecular weights (kDa) of standard marker; CS1 to CS26, Cordyceps sinensis samples from different producing areas
Chemical Characterization and Evaluation of Antioxidant and Antimicrobial Activities of Litchi chinensis Sonn.
Chromatographic profile of ethanol extract of the leaves from Schinus molle
Testicular cross-sections submitted to terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling method and proliferating cell nuclear antigen labeling showing positive nuclei in brown (arrowhead) and a number of positive nuclei in all groups studied
High-performance liquid chromatography chromatograms overlay of standards and Mangifera indica leaf methanol extract
ATR‑IR spectra of (a) raw thymoquinone
Serum alanine and aspartate aminotransferase activities in the sera of rats after treatment with Adansonia digitata leaf extract and/or sodium arsenite
Bioactive Secondary Metabolites from the Locally Isolated Terrestrial Fungus, Penicillium sp. SAM16‑EGY
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

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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
More
XRF spectra.
Development of Chromatographic Fingerprint Profile and Multi-elemental Analysis of Datura metel L.
Graphical representation of total phenolic content of different extracts.
Phytochemical Insights into Antioxidant and Antimicrobial Potentials Across Five Indian Medicinal Plants
Neighbor‑joining phylogenetic tree analysis of fungal endophyte sp. (a) Penicillium citrinum CGJ‑C1, (b) Penicillium citrinum CGJ‑C2, (c) Cladosporium sp. CGJ‑D1, and (d) Cryptendoxyla hypophloia CGJ‑D2. Confidence values above 50% obtained from a 1000‑replicate bootstrap analysis are shown at the branch nodes. Bootstrap values from neighbor‑joining method were determined
Antioxidant and Cytotoxic Potential of Endophytic Fungi Isolated from Medicinal Plant Tragia involucrata L.

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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.

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Tags

(+)-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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