Crude Ethanolic Extract Research Articles

Inhibition of Autophagy Aggravates Arachis hypogaea L. Skin Extracts-Induced Apoptosis in Cancer Cells.

The skin of Arachis hypogaea L. (peanut or groundnut) is a rich source of polyphenols, which have been shown to exhibit a wider spectrum of noteworthy biological activities, including anticancer effects. However, the anticancer activity of peanut skin extracts against melanoma and colorectal cancer (CRC) cells remains elusive. In this study, we systematically investigated the cytotoxic, antiproliferative, pro-apoptotic, and anti-migration effects of peanut skin ethanolic extract and its fractions on melanoma and CRC cells. Cell viability results showed that the ethyl acetate fraction (AHE) of peanut skin ethanolic crude extract and one of the methanolic fractions (AHE-2) from ethyl acetate extraction exhibited the highest cytotoxicity against melanoma and CRC cells but not in nonmalignant human skin fibroblasts. AHE and AHE-2 effectively modulated the cell cycle-related proteins, including the suppression of cyclin-dependent kinase 4 (CDK4), cyclin-dependent kinase 6 (CDK6), phosphorylation of Retinoblastoma (p-Rb), E2F1, Cyclin A, and activation of tumor suppressor p53, which was associated with cell cycle arrest and paralleled their antiproliferative efficacies. AHE and AHE-2 could also induce caspase-dependent apoptosis and inhibit migration activities in melanoma and CRC cells. Moreover, it is noteworthy that autophagy, manifested by microtubule-associated protein light chain 3B (LC3B) conversion and the aggregation of GFP-LC3, was detected after AHE and AHE-2 treatment and provided protective responses in cancer cells. Significantly, inhibition of autophagy enhanced AHE- and AHE-2-induced cytotoxicity and apoptosis. Together, these findings not only elucidate the anticancer potential of peanut skin extracts against melanoma and CRC cells but also provide a new insight into autophagy implicated in peanut skin extracts-induced cancer cell death.

Antiinflammatory Lupeol and Antidiabetic Compound Coexist in Ethyl Acetate and n-Hexane Extracts from Stem Bark of Anogeissus leiocarpus (African Birch Tree): The Therapeutic Advantages

Objectives: Anogeissus leiocarpus stem bark is endowed with numerous antidiabetic properties, such as its prognostic value, treatment of organic damages, dyslipidaemia and enhancement of haematopoiesis. In addition to its antioxidant activity on oxidative stress, it accelerated wound healing and has a wide range of safety value. From the purification of its compounds to the points of crystallization it became necessary to analyse the structures for an insight into its mechanisms of actions.
 Design: Ethanolic extracts were partitioned with ethyl acetate, onto column chromatography packed with silica gel (70-230 mesh) mixed with 95% n-hexane and 5% ethyl acetate; concentrated fractions were loaded onto silica gel-coated thin layer chromatographic plate. Different compounds were observed under UV-light fluorescence and sprayed with sulfuric acid. Similar fractions were pooled, purified to crystals for Nuclear Magnetic Resonance structural analysis.
 Results: Nuclear Magnetic Resonance revealed fraction A is Lupeol, a pentacyclic triterpene anti-inflammatory compound.
 Conclusion: Lupeol in the crude ethanolic extract is significant in inflammatory pain of diabetes.
 Keywords: Lupeol, Anti-inflammatory, Anogeissus leiocarpus, Purified extract, inflammatory pain, Diabetes mellitus.

Efeito antibacteriano de extratos brutos aquosos e etanólicos de Asphodelus fistulosus sobre bactérias gram-positivas e gram-negativas

Asphodelus fistulosus (A. fistulosus) is a wild plant grows in Jordan. Traditionally, it is used to treat different medical conditions and diseases such as respiratory ailments, against burns and dermatomucosal infections.This study aims to find out the effects of A. fistulosus aqueous and ethanolic crude extracts on Staphylococcus aureus(S. aureus) as gram positive bacteria and Escherichia coli (E. coli) as gram negative bacteria and to investigate which one will be affected either by aqueous and/or ethanolic crude extracts of A. fistulosus shooting parts that were collected from Jerash in the north of Jordan. Agar well diffusion method was used to evaluate the antibacterial activity of the crude extracts. In addition, MIC (minimum inhibitory concentration) as well as MBC (minimum bactericidal concentration) were determined against both types of bacteria. The results showed that flower aqueous extract of A. fistulosus was very effective against E. coli (20.0 ± 0.50) mm and caused a (14.0 ± 0.50) mm inhibition to S. aureus. The ethanolic extract of stem was very effective cauesed a (19.0 ± 0.50) mm inhibition in both bacterial species. Respectively, both S. aureus and E. coli were inhibited by ethanolic and aqueous extracts (mixture1 and mixture2) (15.0 ± 0.00 mm and 10.5 ± 0.50 mm). The highest antimbacterial activity was observed for the leaves aqueous extract against E.coli (0.06120 mg/mL). The obtained MIC values from A. fistulosus parts extracts demonstrated antibacterial activity ranged between 7.606 and 0.06120 mg/mL. The highest antimicrobial activity was recorded in the leaves aqueous extract against E. coli.The MBC value of stem aqueous extract was 5.00 mg/mL against both S. aureus and E. coli. On the other hand, ethanolic and aqueous extracts of the leaves gave MBC values 5.00 mg/mL, and 0.156 mg/mL, respectively, against E. coli.Based on the results of this study, it can be concluded that there is good inhibitory effect of aqueous and ethanolic of A. fistulosus shooting parts extracts on growth of E. coli and S. aureus. Adding to that, stem ethanolic extract has the most effective against S. aureus while aqueous extract of flower has the most effective against E. coli.So, it is recommended to have further future studies on the A. fistulosus shooting parts crude extract bioactive components and the mechanism of how these constituents affect these types of bacteria.

Phytochemical Evaluation Of Eleusine Coracana Extract For Its Anti-Microbial Activity

Eleusine coracana (finger millet) is an underutilized cereal crop with potential medicinal properties. This study aimed to investigate the phytochemical composition and antifungal activity of extracts obtained from the seeds of E. coracana using ethanol and aqueous extraction methods. The plant materials were extracted with 100% ethanol and boiling water to obtain crude ethanol and aqueous extracts, respectively. Qualitative phytochemical screening revealed the presence of alkaloids, flavonoids, tannins, and phenolic compounds, with the ethanol extracts containing a more diverse range of phytochemicals. The antifungal activity was evaluated against Candida albicans and Cryptococcouses using agar well diffusion and broth microdilution assays. The ethanol seed extract exhibited the highest antifungal activity, with minimum inhibitory concentrations (MICs) of 0.5 mg/ml against C. albicans and Cryptococcouses, respectively. The observed antifungal activity was attributed to the presence of phenolic compounds and flavonoids, which were more effectively extracted by ethanol compared to the aqueous extraction. These findings highlight the potential of E. coracana as a natural source of antifungal agents and warrant further investigation into the isolation and characterization of the bioactive compounds responsible for the observed activity.

Effects of datura stramonium crude ethanolic leaf extract on some hematological indices in adult male wistar albino rats

Effects of datura stramonium crude ethanolic leaf extract on some hematological indices in adult male wistar albino rats

Evaluation of Phytochemical and Antidiabetic Potentials of Aqueous, Ethanol, and Acetone Crude Extracts of Plectranthus Neochilus Leaves on Alloxan Induced Diabetic Wistar Rats.

Diabetes mellitus is a metabolic disorder which leads to abnormally high blood glucose level (hyperglycemia). This research work is aimed at evaluating the antidiabetic potentials of aqueous, ethanol and acetone extracts of plectranthus neochilus leaves on alloxan induced diabetic wistar rats. Materials and Methods: The experimental rats were induced and made diabetic by single intra-peritoneal administration of Alloxan monohydrate at a dose rate of 150 mg/kg dissolved in 0.9% freshly prepared normal saline at pH 5.5. Sixty-five adult (male) albino rats weighing 160-200g were used for this study. The Animals were divided into 12 groups of 5 rats each namely: A: Normal control, B: Diabetic control 150kg/body weight of alloxan, C: Diabetic + 1000mg/kg body weight of Standard drug (Metformin), D: Diabetic + 250mg/kg body weight of aqueous extract, E: Diabetic + 500mg/kg body weight of aqueous extract, F: Diabetic + 1000mg/kg body weight of aqueous extract, G: Diabetic + 250mg/kg body weight ethanol extract, H: Diabetic + 500mg/kg body weight of ethanol extract, I: Diabetic + 1000mg/kg body weight of ethanol extract, J: Diabetic + 250mg/kg body weight of acetone extract, K: Diabetic + 500mg/kg body weight of acetone extract, L: Diabetic + 1000mg/kg body weight of acetone extract. The extracts were administered orally for a duration of 28days at doses of (250, 500, and 1000 mg/kg body weight). Results: Treatment with extracts significantly reduced (p<0.05) elevated blood glucose level associated with alloxan induced diabetic (27.85±0.95) rats in the aqueous extract (5.90±0.10), ethanol extract (10.15±4.35) but no significant ameliorative effect with the acetone extract (23.35±2.82) at dosage of 1000mg/kg body weight. The aqueous extract significantly reduced (p<0.05) elevated blood glucose level more when compared to the normal control (5.85±0.05) rats as when compared to the ethanol and acetone extracts at dose 1000mg/kg body weight. Conclusion: The blood glucose data obtained using Alloxan hyperglycaemic rats clearly shows that the crude aqueous extract has better anti-diabetic effect at dose of 1000mg/kg, followed by the ethanol extract and then the acetone extract in the 28 days of treatment, the ameliorative effect is also dose dependent. Thus, the leaves caused significant and consistent reductions in diabetic drug-induced hyperglycaemia in albino rats.

Assessment of Oral Acute Toxicity (LD50) of Aqueous, Ethanol, and Acetone Crude Extracts of Plectranthus Neochilus Leaves on Wistar Albino Rats

The Plectranthus genus, comprising more than 300 species distributed through tropical and subtropical areas of Africa, Asia, Oceania and South America, belongs to the Lamiaceae family, which includes some well-established medicinal genus such as mint (Mentha), sage (Salvia) and thyme (Thymus). Toxicology may be defined as the study of harmful, poisonous and adverse effects of drugs and other chemical constituents found in plants, which may increase the chances of mortality or weakness in the general health, physically as well as mentally. Thus, this work was aimed at assessing the oral acute toxicity (LD50) of aqueous, ethanol, and acetone crude extracts of Plectranthus Neochilus Leaves and to establish its safety on wistar albino rats (160-200g) as per OECD guidelines. Lorke’s method (1983) was used for this study. The results of phase one and phase two of the study showed no acute toxicity or mortality in any of the groups of rats in 24 hours, 72 hours and up to two weeks after single oral administration of 10, 100, 1000, 1500, 2250, 3500 and 5000 mg/kg body weight of the animals. In conclusion, oral administration of the plant extracts did not produce any toxic effect in rats. Oral intake of extracts at dose ≤5000 mg/kg body weight is safe, which implies that the oral LD50 is >5000 mg/kg body weight. Hence, the extract can be utilized safely for therapeutic use in pharmaceutical formulations.

Antitumoral effect of the ethanolic extract of Prunella vulgaris L. in an in vivo murine lymphoma

Context: Prunella vulgaris L. is a plant used by various cultures around the world due to its antitumor effect, among others. In vitro investigations have described various mechanisms of cytotoxic action but, it is necessary to further extend the observations of in vivo models, whit the possibility of analyzing the effect on tumor grown, time of life, as well as toxicity, which that will allow to promote the possible use of P. vulgaris in cancer in a safe and effective way. Aims: To evaluate the antitumor effect of P. vulgaris L. on L5178Y lymphoma in BALB/c mice as well as its acute toxicity in CD1 mice. Methods: For the tests, the crude ethanolic extract of P. vulgaris was used. Acute oral toxicity was studied in female CD1 mice. The antitumor effect was observed with the L5178Y ascitic tumor model, the effect on tumor growth and survival of the groups with vehicle, vincristine and with the extract were compared. Results: In the toxicity test, no mouse died at the doses used. In relation to the antitumor effect, it was observed that tumor growth was lower both in the positive control and in the different doses used of the P. vulgaris extract compared to the vehicle, while the estimate of survival was similar in the vehicle and in the groups with the extract. Conclusions: In this work, the ethanolic extract of P. vulgaris did not show toxicity and inhibited tumor growth, without improving survival.

Potential usage of biosynthesized zinc oxide nanoparticles from mangosteen peel ethanol extract to inhibit Xanthomonas oryzae and promote rice growth

In recent decades, the biosynthesis of nanoparticles using biological agents, such as plant extracts, has grown in popularity due to their environmental and economic benefits. Therefore, this study investigated into utilizing ethanol crude extract sourced from mangosteen peel for the synthesis of zinc oxide nanoparticles (ZnO NPs) and assessing their efficacy against the rice blight pathogen (Xanthomonas oryzae pv. oryzae) through antibacterial evaluations. Additionally, the effects of the synthesized ZnO NPs on rice plant growth was investigated. The X-ray diffraction analysis revealed the production of wurtzite ZnO NPs under specific synthesis conditions, exhibiting a crystallite size of 38.71 nm (or 387.122 Å) without any contamination. Analysis of the ultraviolet–visible optical absorption spectrum indicated a characteristic absorption peak at 363 nm, suggesting a calculated band gap energy of 2.88 eV for the ZnO NPs. Furthermore, Fourier transform infrared spectroscopy analysis confirmed the presence of active compounds functional groups from mangosteen peel in the synthesized ZnO NPs. These biosynthesized ZnO NPs demonstrated significant inhibition of X. oryzae pv. oryzae growth, exhibiting an in vitro 50 % inhibitory concentration (IC50) value of 1.895 mg/mL and a minimum inhibitory concentration (MIC) value of 4 mg/mL. The ZnO NPs treatments at two-fold IC50 values significantly enhanced root length, dry biomass, and chlorophyll a content in rice plants. Consequently, the results demonstrated the potential application of biosynthesized ZnO NPs from mangosteen peel extract in green agriculture, as an alternative to excessive antibiotic use, for combating bacterial plant diseases, and for enhancing plant growth.

Histopathologic and functional studies of the liver and kidneys of albino rats treated with ethanol crude extract of Sida acuta (wire weed) leaves in Nigeria

Histopathologic and functional studies of the liver and kidneys of albino rats treated with ethanol crude extract of Sida acuta (wire weed) leaves in Nigeria

Qualitative and quantitative phytochemical profiling of ethnomedicinal folklore plant- Globimetula oreophila

Globimetula oreophila is a hemiparasitic plant commonly called mistletoe, found growing on several dicotyledonous trees using them as a host for its root-like structure called haustoria. Globimetula oreophila has been used to cure a variety of ailments, including diarrhea, stomachache, headache, and fever. As a treatment for these ailments, the leaves and stem are boiled and the resulting decoction is drunk. The phytochemical compositions have not yet been scientifically confirmed despite their potential for medicinal use. The present study is aimed at investigating the leaves of G. oreophila fraction for phytochemicals, by qualitative and quantitative analysis. It was observed that from the qualitative screening, different fractions confirmed the presence of carbohydrates, saponins, cardiac glycoside, tannins, flavonoids, steroid/triterpene, and alkaloids. Anthraquinones were not observed in any of the fraction of G. oreophila plant. Further, the study of the quantitative findings revealed that the butanol fraction had more secondary metabolites when compared with other fractions and the crude extract. Higher flavonoid content was found in the butanol fraction as compared to crude ethanol extract (CEE) while phenols were found to be higher in crude ethanol extract as compared to the butanol fraction. There were significant differences in the total phytochemical contents of each fraction. The results also show that the analyzed plant is a beneficial source of secondary metabolites and may have contributed to the therapeutic use of the plant in traditional medicine for the management of diseases.

Levels of trace metals content of crude ethanol leaf extract of globimetula oreophila (Hook. f) danser growing on Azadirachta indica using atomic absorption spectroscopy

Globimetula oreophila is a parasitic plant that is widely used in the treatment of various ailments including malaria, hypertension, cancer, diabetes, epilepsy, and as a diuretic agent. The present study is aimed at analyzing and documenting the level of trace and toxic metals in the crude ethanolic leaf extract of G. oreophila. After collection and authentication, the leaves were air-dried, mashed into powder, weighed, and extracted using 70% ethanol. Crude extract (0.5g) was digested with HNO3: HCl (3:1); then heated to 200 ºC and analyzed for its metal content by atomic absorption spectroscopy (AAS). Fe had the highest concentration (32.73mg/kg), while Pb was not detected. The concentrations of Co, Cu, Ni, Zn, and Cd detected were 5.97, 10.8, 8.0,1, and 0.9 mg/kg respectively. The concentrations of Cd, Fe, and Ni were above the permissible limit of FAO/WHO.

Spermatogenic Inhibition Properties of a Phenolic Phytoestrogen Isolated from Momordica charantia (Bitter Guard) Seeds

Mechanisms and potencies of phytoestrogens are not completely clarified and they may be considered potential endocrine disruptors, and therefore caution should be exercised while taking them. Eating very high levels of some phytoestrogens may pose some health risks. Reproductive problems have been documented in laboratory animals, farm animals and wildlife that ate very high (up to 100% of their diet) amounts of phytoestrogen-rich plants. Sheep consuming large amounts of clover showed infertility and reproductive disorders. Cheetahs in captivity also had reduced fertility rates when consuming a feline diet composed of a soybean product, which was reversed when it was removed from the diet. Toxicities associated with herbal medicines that include phytoestrogens have also been reported in the literature.
 Phenolphthalein a phenolic phytoestrogen has been isolated from the crude ethanol extract of Momordica charantia Linn. seeds. After preparative HPLC whitish amorphous compound was obtained. Its structural elucidation using IR, NMR and Mass spectral data revealed that the molecule isolated from the ethanol extract of M. charantia seeds was surprisingly, phenolphthalein. In order to clarify testicular influence of ethanol extract, fractions and isolated phenolphthalein were treated for sixty days to adult male albino rats. All the treated groups showed statistically significant reduction in testis weight. On histological examinations of testis showed spermatogenic inhibition effect, as the number of spermatogonia, spermatocytes, spermatids and spermatozoa were significantly decreased.

Phytochemical Composition, Antimycotic and In Vivo Antiinflammatory Activities of Marine Algae Inhabiting South Jeddah Seashore, Red Sea, Saudi Arabia

The Red Sea coastline is known for its diverse range of seaweeds, which have been hypothesized to possess therapeutic attributes. The primary aim of this research was to evaluate the antifungal and anti-inflammatory characteristics of the ethanol crude extract obtained from two types of algae, namely Padina pavonica (P. pavonica) and Laurencia catarinensis (L. catarinensis) from the Red Sea. It was revealed from FTIR analysis of P. pavonica and L. catarinensis ethanolic extracts that the strong band at 3366 cm−1 and 3339 cm−1 corresponds to alcoholic O-H stretching in both extracts. GC-MS phytoconstituent profile of the extract was dominant with a wide range of chemical classes mainly steroids, terpenes, fatty acids, fatty acid esters, retinoid derivatives, alcohols, carotenoids and alkanes. The results of the antifungal activity assay indicate that P. pavonica had the strongest activity against Aspergillus fumigatus, with a mean value of 23.50 ± 0.55 mm. Similarly, L. catarinensis demonstrated significant antifungal activity against Candida albicans, with a mean value of 21.00 ± 2.64 mm. The hemolysis exhibited a positive correlation with the dosage of extracts, with an observed increase in hemolysis as the dosage increased. Besides the antiinflammatory activity of the algal extracts induced by carrageenan demonstrating a dose-dependent relationship between the inhibition of paw edema and the dosage of the extract.

Phytochemical Composition, Antimycotic and In vivo Antiinflammatory Activities of Marine Algae Inhabiting South Jeddah Seashore, Red Sea, Saudi Arabia

The Red Sea coastline is known for its diverse range of seaweeds, which have been hypothesized to possess therapeutic attributes. The primary aim of this research was to evaluate the antifungal and anti-inflammatory characteristics of the ethanol crude extract obtained from two types of algae, namely Padina pavonica (P. pavonica) and Laurencia catarinensis (L. catarinensis) from the Red Sea. It was revealed from FTIR analysis of P. pavonica and L. catarinensis ethanolic extracts that the strong band at 3366 cm−1 and 3339 cm−1 corresponds to alcoholic O-H stretching in both extracts. GC-MS phytoconstituent profile of the extract was dominant with a wide range of chemical classes mainly steroids, terpenes, fatty acids, fatty acid esters, retinoid derivatives, alcohols, carotenoids and alkanes. The results of the antifungal activity assay indicate that P. pavonica had the strongest activity against Aspergillus fumigatus, with a mean value of 23.50 ± 0.55 mm. Similarly, L. catarinensis demonstrated significant antifungal activity against Candida albicans, with a mean value of 21.00 ± 2.64 mm. The hemolysis exhibited a positive correlation with the dosage of extracts, with an observed increase in hemolysis as the dosage increased. Besides the antiinflammatory activity of the algal extracts induced by carrageenan demonstrating a dose-dependent relationship between the inhibition of paw edema and the dosage of the extract.

Bioactive potential of L. camara and O. gratissimum extracts in the control of mosquito larvae: An ecologically friendly approach

In the present study, the larvicidal efficacy of the extracts of the weeds Lantana camara Linn (L. camara) and Ocimum gratissimum Linn (O. gratissimum) was evaluated against the larvae of the malaria vectors A. aegypti, An. subpictus, and C. quinquefasciatus. The ethanol, n-hexane and diethyl ether crude leaf extracts were evaluated in a preliminary screening for larvicidal activity at 20,40,80,160,320 and 640 mg/l concentrations. 20 larvae of each species were introduced in different sterile Petri dishes in aqueous media under a controlled environment to assess biological activity. The larvicidal activity of both extracts was evaluated at 6 and 12-h post-exposure time points by observing the movement of each larva. The obtained data were subjected to probit analysis to determine the lethal concentrations that kill 50% and 90% (LC50 and LC90) of the treated larvae. The results revealed a noticeable larvicidal activity following 12 h of exposure. The extract of L. camara leaves exhibited an LC50 range between 18.66 and 51.35 mg/l and an LC90 range between 87.78 and 312.21 mg/l. Moreover, for the extract of O. gratissimum leaves, the LC50 range was 52.26 to 59.09 mg/l and the LC90 range was 260.22 to 348.23 mg/l. Taken together, the results indicate that the extracts of L. camara and O. gratissimum leaves may be useful as effective, economical, and eco-friendly larvicidal agents. However, additional studies are needed to explore the bioactive components of the weeds that exhibit larvicidal activity along with their mode of action.

Preventive Action of Blue Lotus (Nymphaea Caerulea) Flower Extract against E. Coli-Induced Immune-Pathological Changes In Gallus gallus domesticus Embryo.

Nymphaea caerulea is an aquatic plant originally found in the Nile River has several therapeutic activities - anti-depressant, anti-inflammatory, anti-oxidant, and anti-microbial activities. This led us to perform the study focusing on the anti-microbial properties of the flower extract. Crude ethanolic extract of petals and pollens of N. caerulea flower were prepared and its antimicrobial activity was checked against E. coli. The Minimum Inhibition Concentration value was determined showing that both the extracts had similar capability against both the strains, with MIC value of 0.39mg/ml and 0.78mg/ml MIC against E.coli ATCC and MDR strains respectively. Further studies were done to study the gross morphological changes and the genetic expression changes of IL-10 and IFN-γ in E. coli-infected Gallus gallus domesticus embryo models. From the results, it can be said that the extract has preventive effects that reduce haemorrhages of the embryos when infected with E. coli. Moreover, there was slight increase in the level of IL-10 cytokine gene expression indicating its anti-inflammatory action along with a higher increase in the IFN-γ cytokine gene expressions responsible for activating the host immunity. Thus, the findings indicate the probable potential role of N. caerulea flower extract to act as an antibacterial agent.

Extraction of flavonoids from durian (Durio zibethinus) fruit rinds and evaluation of their antioxidant, antidiabetic and anticancer properties

SummaryDurian (Durio zibethinus) fruit rinds are a promising source of bioactive phytochemicals, but they are currently wasted. This study optimised extraction conditions for flavonoids from durian fruit rinds and evaluated the biological activities of the flavonoid‐rich extracts. The highest flavonoid content of 82.17 mg QE g−1 extract was achieved when performing the extraction at 60 °C using 75% ethanol and maceration time of 24 h. The crude ethanolic extract was then fractionated using liquid–liquid extraction to obtain three fractions (CHF, EAF and AQF). Among them, CHF demonstrated the highest amount of flavonoids (271.11 mg QE g−1 extract) and quercetin (1006.19 μg g−1 extract). This fraction also exhibited the highest ferric reducing power (IC50 of 307.88 μg vitamin C g−1), DPPH radical scavenging activity (IC50 of 38.72 μg mL−1), α‐amylase and α‐glucosidase inhibitory activity (IC50 of 685.76 μg mL−1 and 441.10 μg mL−1, respectively) and cytotoxicity against HepG‐2 and MCF‐7 cells with IC50 values of 490.30 μg mL−1 and 343.38 μg mL−1 respectively. The current work suggested that durian fruit rinds are a potential source of flavonoids and the CHF could be further used for pharmaceutical applications.

Characterization of the chemical composition of different parts of Dolichos lablab L. and revelation of its anti-ulcerative colitis effects by modulating the gut microbiota and host metabolism

Ethnopharmacological relevanceUlcerative colitis (UC) is a non-specific inflammatory disease characterized by long duration and easy relapse. Dolichos lablab L. (DLL) belongs to the family Fabaceae, was listed in a famous Chinese medical classic, Compendium of Materia Medic, and described as possessing features that invigorate the spleen, alleviate dampness, provide diarrhea relief, and other effects. The DLL-dried white mature seeds (DS) and dried flower (DF), which hold significant medicinal value in China, were used in clinical prescriptions to prevent and treat UC. DS and DF have appeared in different editions of the Pharmacopoeia of the People's Republic of China from 1977 to 2020. However, their chemical composition, pharmacological effects, and mechanism of treating UC are unclear. Aim of the studyThis study aimed to characterize the chemical composition of different parts of DLL (seeds and flowers), further explore their pharmacological effects, and elaborate its underlying mechanism of treating UC. MethodsThe chemical composition of DS and DF crude polysaccharides (DSP and DFP) and ethanolic extracts (DSE and DFE) were characterized by high-performance anion-exchange chromatography (HPAEC), ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MS), and gas chromatography-mass spectrometry (GC-MS). Then, based on the acute UC mice model, the pharmacodynamic effects were investigated by Western blotting, ELISA, and other methods. Finally, the 16S rRNA gene sequencing and metabonomic analysis were used to explore the regulatory effects of DS and DF on intestinal microbiota and host metabolism. ResultsDSE and DFE inhibited the oxidative stress response, reducing proinflammatory factor production and maintaining intestinal barrier integrity in UC mice. The 16S rRNA gene sequencing and metabonomic analysis revealed that DS and DF treated UC by regulating the intestinal microbiota structure and reversing the abnormal metabolism of the host. ConclusionThis study suggested that different parts of DLL (flowers and seeds) may be potential medicines for treating UC, which exert their therapeutic effects through various active ingredients and might contribute significantly to reducing the economic pressures and challenges of UC treatment worldwide.

Gastroprotective and hepatoprotective effects of the fruit peels extract of a hybrid plant Citrus x paradisi Macfad. (Rutaceae) against ethanol-induced-gastric ulcer and paracetamol-induced-hepatitis on Wistar strain male rats.

Introduction: Diseases of the digestive system and liver are the leading cause of hospitalization worldwide, at around 12.2%. In particular hepatotoxicity which affects more than fifty million people worldwide and peptic ulcer disease. Moreover, the therapies used for the treatment of these diseases are not only very expensive but also present numerous
 
 undesirable side effects (hypersensitivity, arrhythmia, impotence, hematopoietic changes). The use of medicinal plants and herbal medicine probably make a considerable contribution. And the present study demonstrates it.
 Material and Method: 200 and 400 mg of crude ethanolic fruit peel extract (EFPE) were administered by nasogastric tube to two groups of G and H rats consisting of 3 batches of 5 rats each. The 3 batches representing the neutral, negative and positive controls. Then, gastric ulcer and hepatitis was induced in rats according to the Kanbur and al.’s procedures. Results and Discussion: The percentages of protection of the gastric mucosa are 6 - 7 times higher than those of rats pretreated with distilled water and close to nearly 90% than that of omeprazole at 20 mg / kg. At equal concentrations (200 mg / kg bw) the gastroprotective effect of the FFPE therefore appears to be 1.2 greater than that reported by Selmi et al., 2017 [5] on the fruit peels of the parent C. sinensis. The lowest serum transaminases (AST, ALT, ALP) levels were observed in rats pretreated with EFPE at 200 mg / kg bw. Oral administration of 200mg/kg bw of the EFPE equally twice that of silymarin would lead to a decrease in transaminases comparable to that of silymarin administered at 100 mg / kg used as a reference sample. The hepatoprotective effect of EFPE are similar with those observed on seeds by Udom et al., 2018 [6]. These results are consistent with macroscopic and histological examination of the damaged tissue. Conclusion: The EFPE of Citrus x paradisi has gastroprotective and hepatoprotective effects which would be comparable to those of Omeprazole and Sylmarin orally administered.