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Pharmacognosy Research
An Open Access Journal in Pharmacognosy and Natural Products

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(a) Inter simple sequence repeat – polymerase chain reaction profiles were obtained using a primers inter simple sequence repeat 1, inter simple sequence repeat 2, and inter simple sequence repeat 3 in different flax cultivars F1=, F2=, F3=, F4 = respectively; (lanes: 1‑4)=, Lane M = DNA ladder. Arrows show cultivers specific band. (b) inter simple sequence repeat – polymerase chain reaction profiles were obtained using a primers inter simple sequence repeat 4, inter simple sequence repeat 4, and inter simp
A Study of In-vitro Hypoglycemic and Glucose Uptake Activity of Isolated Compound from Ethanolic Leaf Extract of Amaranthus tristis Linn.
Chromatogram of Mentha piperita essential oiltreating
Total phenolic content of different extracts. Values were expressed as mean ± standard deviation (n = 3). PP: Piper aduncum; GD: Geranium dielsanium; PA: Piper aduncum; MD: Myrciaria dubia; WO: Waltheria ovate
Effect of UP165 on sleep time: Mice were injected with pentobarbital 15 minutes after the last dose of treatment to examine the effect of UP165 on sleep time
(a) The bilateral testes in sham group and the contralateral testes in date palm-treated group indicated normal seminiferous tubules
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

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Plant Habitat and close view of Punica granatum L.
Microscopical Investigation of Punica granatum L. Flower: A Traditional Drug with Vivid Therapeutic Promise
Apr 14, 2025 - 14:15
FTIR analysis of aqueous leaf extract of Hildegardia populifolia
FTIR Analysis, Total Phenolic Content, Antioxidant and Antidiabetic Activities of Hildegardia populifolia (Roxb.) Schott and Endl. (Malvaceae)
Apr 11, 2025 - 14:29
Mechanism of action of Guan-Xin-Er-Hao (GXII) and hydroxysafflor yellow A (HSYA) in ameliorating atherosclerosis in ApoE−/− mice involves antioxidant and anti-inflammatory effects. The figure illustrates the antioxidant and anti-inflammatory mechanisms of Guan-Xin-Er-Hao and Hydroxysafflor Yellow A. By balancing antioxidant enzymes and MDA production; they reduce Reactive Oxygen Species (ROS); thereby alleviating endothelial dysfunction and oxidative stress. ROS-induced inflammation increases VCAM-1 express
Synergistic Effects of Guan-Xin-Er-Hao and Hydroxysafflor Yellow A on Atherosclerosis in ApoE-/- Mice: Unveiling Antioxidant and Anti-Inflammatory Mechanisms
Apr 9, 2025 - 17:11
Isolation of components by column chromatography.
Isolation, Characterization and Structural Elucidation of a Bioactive Flavonoid from Schinus polygama Leaves Using Chromatographic and Spectroscopic Techniques
Apr 9, 2025 - 16:49
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In vitro Sun Protection Factor Determination of Herbal Oils used in Cosmetics
In vitro Sun Protection Factor Determination of Herbal Oils used in Cosmetics
Kapikacchu: The Brain Medicine
Kapikacchu: The Brain Medicine
Percentage of secondary metabolites profile from each extract.
Evaluation of Selectivity Index and Phytoconstituents Profile of Various Extracts from the Stem of Strychnos lucida R. Br. as Anti-malarial

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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.

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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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. Last updated: 01/06/2021