C. Otitolaiye, A. Omonkhua, K. Oriakhi, E. Okello, I. Onoagbe, F. Okonofua
Background: Irvingia gabonensis extracts are documented to possess antidiabetic, hypocholesterolemic, and antioxidant activities. The phytochemical components of medicinal plants are responsible for their therapeutic properties, particularly those with antioxidant properties. Objectives: The quantitative phytochemicals and in vitro antioxidant properties of the aqueous and ethanol extracts of I. gabonensis stem bark were assessed in this study. Materials and Methods: Standard techniques were used to measure the concentrations of phenols, flavonoids, tannins, alkaloids, steroids, and saponins in water and alcohol extracts of this plant. Total Antioxidant Power (TAP) and the extract's capacity to scavenge free radicals including superoxide, nitric oxide, 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2-azino-bis-(3-ethylbenzoth iazoline-6-sulfonic acid) (ABTS + ), β-carotene, and hydrogen peroxide were also evaluated. The extracts' Ferric-Reducing Potential (FRAP) was also assessed. Results: The alcohol extract had significantly ( P < 0.05) higher concentrations of all the phytochemicals measured as well as near significantly ( P <0.066) higher TAP in comparison to the aqueous extracts. In general, the in vitro antioxidant capacity of the ethanol extract surpassed that of the water extract. The ethanol extract had IC 50 values that were comparable to or less than the reference standards for its ability to neutralize nitric oxide, H 2 O 2 , superoxide, and DPPH radicals. Conclusion: The outcomes of the quantitative phytochemical analysis and in vitro antioxidant effects of aqueous and ethanol extracts of I. gabonensis stem bark clearly show their potential as an excellent reservoir of bioactive compounds and scavengers of deleterious oxidants; properties that could be explored therapeutically.
{"title":"Phytochemical Analysis and in vitro Antioxidant Potential of Aqueous and Ethanol Extracts of Irvingia gabonensis Stem Bark","authors":"C. Otitolaiye, A. Omonkhua, K. Oriakhi, E. Okello, I. Onoagbe, F. Okonofua","doi":"10.5530/pres.15.2.039","DOIUrl":"https://doi.org/10.5530/pres.15.2.039","url":null,"abstract":"Background: Irvingia gabonensis extracts are documented to possess antidiabetic, hypocholesterolemic, and antioxidant activities. The phytochemical components of medicinal plants are responsible for their therapeutic properties, particularly those with antioxidant properties. Objectives: The quantitative phytochemicals and in vitro antioxidant properties of the aqueous and ethanol extracts of I. gabonensis stem bark were assessed in this study. Materials and Methods: Standard techniques were used to measure the concentrations of phenols, flavonoids, tannins, alkaloids, steroids, and saponins in water and alcohol extracts of this plant. Total Antioxidant Power (TAP) and the extract's capacity to scavenge free radicals including superoxide, nitric oxide, 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2-azino-bis-(3-ethylbenzoth iazoline-6-sulfonic acid) (ABTS + ), β-carotene, and hydrogen peroxide were also evaluated. The extracts' Ferric-Reducing Potential (FRAP) was also assessed. Results: The alcohol extract had significantly ( P < 0.05) higher concentrations of all the phytochemicals measured as well as near significantly ( P <0.066) higher TAP in comparison to the aqueous extracts. In general, the in vitro antioxidant capacity of the ethanol extract surpassed that of the water extract. The ethanol extract had IC 50 values that were comparable to or less than the reference standards for its ability to neutralize nitric oxide, H 2 O 2 , superoxide, and DPPH radicals. Conclusion: The outcomes of the quantitative phytochemical analysis and in vitro antioxidant effects of aqueous and ethanol extracts of I. gabonensis stem bark clearly show their potential as an excellent reservoir of bioactive compounds and scavengers of deleterious oxidants; properties that could be explored therapeutically.","PeriodicalId":19813,"journal":{"name":"Pharmacognosy Research","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49290885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Medha Mohan Hegde, K. Lakshman, Mrs. Medha, Mohan Hegde
Natural drug-based chemotherapeutic have advanced at an unprecedented rate over the past decade. Owing to protective roles in vegetation, and exceptional antioxidant qualities, polyphenols and flavonoids have demonstrated promising clinical implications in malignancies amongst other plant metabolites. It is widely debated how dietary flavonoids and polyphenols can prevent cancer. Flavonoids are believed to execute a significant role in cancer prevention and treatment, as corroborated from experimental studies, epidemiological research, and human clinical trials. Carcinogen deactivation, antimutagenic, cell cycle arrest, apoptosis and differentiation, suppression of vasculature, oxidative stress, and reversion of multidrug resistance are among the many mechanisms of action that have been discovered. The present review outlines the classification of various polyphenols and flavonoids and their potential as anticancer therapeutic agents.
{"title":"Role of Polyphenols and Flavonoids as Anti-Cancer Drug Candidates: A Review","authors":"Medha Mohan Hegde, K. Lakshman, Mrs. Medha, Mohan Hegde","doi":"10.5530/pres.15.2.022","DOIUrl":"https://doi.org/10.5530/pres.15.2.022","url":null,"abstract":"Natural drug-based chemotherapeutic have advanced at an unprecedented rate over the past decade. Owing to protective roles in vegetation, and exceptional antioxidant qualities, polyphenols and flavonoids have demonstrated promising clinical implications in malignancies amongst other plant metabolites. It is widely debated how dietary flavonoids and polyphenols can prevent cancer. Flavonoids are believed to execute a significant role in cancer prevention and treatment, as corroborated from experimental studies, epidemiological research, and human clinical trials. Carcinogen deactivation, antimutagenic, cell cycle arrest, apoptosis and differentiation, suppression of vasculature, oxidative stress, and reversion of multidrug resistance are among the many mechanisms of action that have been discovered. The present review outlines the classification of various polyphenols and flavonoids and their potential as anticancer therapeutic agents.","PeriodicalId":19813,"journal":{"name":"Pharmacognosy Research","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49383573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Susikumar Sundharamoorthy, Gokula Kannan Sundharamoorthy, A. Mandal, Shakila Ramachandran, S. Govindaraju, Sunil Kumar Koppala Narayanan
Background: Canavalia gladiata (Jacq.) DC. (Family Leguminosae) is a large annual or perennial climber with a terete glabrous stem, native to Indo-Malaysian and also distributed in tropical, subtropical regions. C. gladiata (Jacq.) DC. is generally confused with another closely related species i.e. C. ensiformis (Linn.) DC (Jack bean). The tender pods of both the above species have close similarity in morphology, especially shape and size of fruit, therefore it is difficult to differentiate on their vegetative and also fruiting stages. The plant C. ensiformis mentioned as a synonym of C. gladiata in many of the earlier literature though they are 2 different taxa. Some authors published different colour seeds in the name of C. gladiata . It is doubtful if C. ensiformis (Linn.) DC. or C. gladiata (Jacq.) DC was studied during that analysis. Objectives: A systematic pharmacognostical study has been executed to identify the correct botanical source. Materials and Methods: All the studies were carried out by standard procedures in Pharmacopoeias and other authentic literature. Results: Macroscopically surface characters followed by odour and taste, anatomically TS of the pericarp, plecenta, testa, cotyledon and radical, powder microscopically epidermal cells with stomata and prismatic crystal cystolith, trichomes, testa palisade cells, sclereids with different shape and size, brownish content, starch grains, tracheids, fibres and prismatic crystals of calcium oxalate are the unique diagnostic characters observed. HPTLC with different spots having unique Rf values in the pericarp, testa, cotyledon and seeds will be helpful for critical identification of the species. Conclusion: The findings of the present study will be helpful in the identification and differentiation of related species as the whole drug or in powder form.
{"title":"Macro-microscopic and HPTLC Atlas of Canavalia gladiata (Jacq.) DC. Fruit","authors":"Susikumar Sundharamoorthy, Gokula Kannan Sundharamoorthy, A. Mandal, Shakila Ramachandran, S. Govindaraju, Sunil Kumar Koppala Narayanan","doi":"10.5530/pres.15.2.030","DOIUrl":"https://doi.org/10.5530/pres.15.2.030","url":null,"abstract":"Background: Canavalia gladiata (Jacq.) DC. (Family Leguminosae) is a large annual or perennial climber with a terete glabrous stem, native to Indo-Malaysian and also distributed in tropical, subtropical regions. C. gladiata (Jacq.) DC. is generally confused with another closely related species i.e. C. ensiformis (Linn.) DC (Jack bean). The tender pods of both the above species have close similarity in morphology, especially shape and size of fruit, therefore it is difficult to differentiate on their vegetative and also fruiting stages. The plant C. ensiformis mentioned as a synonym of C. gladiata in many of the earlier literature though they are 2 different taxa. Some authors published different colour seeds in the name of C. gladiata . It is doubtful if C. ensiformis (Linn.) DC. or C. gladiata (Jacq.) DC was studied during that analysis. Objectives: A systematic pharmacognostical study has been executed to identify the correct botanical source. Materials and Methods: All the studies were carried out by standard procedures in Pharmacopoeias and other authentic literature. Results: Macroscopically surface characters followed by odour and taste, anatomically TS of the pericarp, plecenta, testa, cotyledon and radical, powder microscopically epidermal cells with stomata and prismatic crystal cystolith, trichomes, testa palisade cells, sclereids with different shape and size, brownish content, starch grains, tracheids, fibres and prismatic crystals of calcium oxalate are the unique diagnostic characters observed. HPTLC with different spots having unique Rf values in the pericarp, testa, cotyledon and seeds will be helpful for critical identification of the species. Conclusion: The findings of the present study will be helpful in the identification and differentiation of related species as the whole drug or in powder form.","PeriodicalId":19813,"journal":{"name":"Pharmacognosy Research","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46894195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. C. Zauli, T. Santos, Alberto Wisniewski Jr, P. Xander, A. C. Pascoal
The present study aimed to characterize the chemical profile of essential oils of Rosmarinus officinalis (EORo) and Eucalyptus globulus (EOEg) cultivated in the mountainous region of the state of Rio de Janeiro, Brazil, and to verify the leishmanicidal potential, as well as to determine the cytotoxicity in vitro in mammalian cells. EORo had α-Pinene (37.99%), Cineol (21.48%), D-Verbenone (5.78%) and Limonene (3.28%) as major constituents. The EOEg had as major components Cineol (75.52%), Limonene (8.82%) and o-Cymeno (7.81%). The EOEg had a lower IC 50 value of 14.03 ± 2.08 µg/mL, while EORo had an IC 50 value of 31.12 ± 4.6 µg/mL, both during the 24-hr exposure period. In the 48-hr period, the IC 50 value was almost twice as high with rosemary oil, while in eucalyptus oil there was no significant difference when exposed in this period. The selectivity of EOs was demonstrated in murine cells, showing almost 30 times less toxic to the cell than to the parasite. It can be concluded that this is a pioneering study on the potential of these essential oils against the leishmania parasite. Furthermore, the low toxicity effect on the host cell encourages future studies and in vivo applications.
{"title":"Essential Oils of Rosmarinus officinalis and Eucalyptus globulus Cultivated in the Mountainous Region of the State of Rio de Janeiro (Brazil): Chemical Profile and Antileishmanial Activity","authors":"R. C. Zauli, T. Santos, Alberto Wisniewski Jr, P. Xander, A. C. Pascoal","doi":"10.5530/pres.15.2.032","DOIUrl":"https://doi.org/10.5530/pres.15.2.032","url":null,"abstract":"The present study aimed to characterize the chemical profile of essential oils of Rosmarinus officinalis (EORo) and Eucalyptus globulus (EOEg) cultivated in the mountainous region of the state of Rio de Janeiro, Brazil, and to verify the leishmanicidal potential, as well as to determine the cytotoxicity in vitro in mammalian cells. EORo had α-Pinene (37.99%), Cineol (21.48%), D-Verbenone (5.78%) and Limonene (3.28%) as major constituents. The EOEg had as major components Cineol (75.52%), Limonene (8.82%) and o-Cymeno (7.81%). The EOEg had a lower IC 50 value of 14.03 ± 2.08 µg/mL, while EORo had an IC 50 value of 31.12 ± 4.6 µg/mL, both during the 24-hr exposure period. In the 48-hr period, the IC 50 value was almost twice as high with rosemary oil, while in eucalyptus oil there was no significant difference when exposed in this period. The selectivity of EOs was demonstrated in murine cells, showing almost 30 times less toxic to the cell than to the parasite. It can be concluded that this is a pioneering study on the potential of these essential oils against the leishmania parasite. Furthermore, the low toxicity effect on the host cell encourages future studies and in vivo applications.","PeriodicalId":19813,"journal":{"name":"Pharmacognosy Research","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47280861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Introduction: Plasmodium falciparum human malaria parasite is resistant to most available medicines in Africa, necessitating research for new drugs. Rubia cordifolia L. is used in traditional malaria treatment in Kenya despite no supporting scientific data. Objectives: To evaluate anti-plasmodial efficacy of extracts from the aerial part of Rubia cordifolia against chloroquine sensitive (3D7) and resistant (W2) Plasmodium falciparum strains. Methods: Hexane, methanol and water were separately used in crude extractions from open shade dried aerial plant parts. Phytochemical composition was determined qualitatively. Anti-plasmodial efficacy of serial dilutions (range; 0.4 to 50 μg/ml) of each extract were evaluated in vitro and compared using ANOVA and Tukey’s HSD test, at p <0.05). Results: All the extracts significantly inhibited parasites growth, in a dose dependent manner. At 50 μg/ml, inhibition was (84.07%, 77.94% and 66.08%) for hexane, methanol and water extracts respectively against W2 and (80.06%, 78.36% and 60.92%) against 3D7 strain. Hexane extract showed IC 50 0.551 µg/ml and 2.747 micrograms/ml against W2 and 3D7 respectively. Methanol extract, IC 50 1.231 and 3.528 µ g/ml respectively, aqueous extract showed moderate activity, IC 50 5.348 μg/ml and 17.341 µg/ml against the strains respectively. Chloroquine resistant (W2 strain) was more responsive to the extracts than 3D7 strain. Conclusion: Anti-plasmodial activities were in the order, Hexane>methanol>aqueous and were attributed to the phytochemicals present in the extracts. This presents evidence of R. cordifolia as anti-malarial drugs’ source. Further work is required to identify, purify, and characterize active molecules for development of anti-malaria drugs.
{"title":"Rubia cordifolia L. Crude Aerial Part Extracts Show a High Potential as Antimalarials against Chloroquine Resistant Plasmodium falciparum Strains in vitro","authors":"Magara Jeremiah, L. Kamau, G. Nyambati, H. Ozwara","doi":"10.5530/pres.15.2.031","DOIUrl":"https://doi.org/10.5530/pres.15.2.031","url":null,"abstract":"Introduction: Plasmodium falciparum human malaria parasite is resistant to most available medicines in Africa, necessitating research for new drugs. Rubia cordifolia L. is used in traditional malaria treatment in Kenya despite no supporting scientific data. Objectives: To evaluate anti-plasmodial efficacy of extracts from the aerial part of Rubia cordifolia against chloroquine sensitive (3D7) and resistant (W2) Plasmodium falciparum strains. Methods: Hexane, methanol and water were separately used in crude extractions from open shade dried aerial plant parts. Phytochemical composition was determined qualitatively. Anti-plasmodial efficacy of serial dilutions (range; 0.4 to 50 μg/ml) of each extract were evaluated in vitro and compared using ANOVA and Tukey’s HSD test, at p <0.05). Results: All the extracts significantly inhibited parasites growth, in a dose dependent manner. At 50 μg/ml, inhibition was (84.07%, 77.94% and 66.08%) for hexane, methanol and water extracts respectively against W2 and (80.06%, 78.36% and 60.92%) against 3D7 strain. Hexane extract showed IC 50 0.551 µg/ml and 2.747 micrograms/ml against W2 and 3D7 respectively. Methanol extract, IC 50 1.231 and 3.528 µ g/ml respectively, aqueous extract showed moderate activity, IC 50 5.348 μg/ml and 17.341 µg/ml against the strains respectively. Chloroquine resistant (W2 strain) was more responsive to the extracts than 3D7 strain. Conclusion: Anti-plasmodial activities were in the order, Hexane>methanol>aqueous and were attributed to the phytochemicals present in the extracts. This presents evidence of R. cordifolia as anti-malarial drugs’ source. Further work is required to identify, purify, and characterize active molecules for development of anti-malaria drugs.","PeriodicalId":19813,"journal":{"name":"Pharmacognosy Research","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49107775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: The current study focuses on the preliminary phytochemical analysis, antioxidant potential and identification of phytochemicals in Ardissia solanacea leaves extract using chromatography and HR-MS. Materials and Methods: The occurrence of phytoconstituents in different extracts of Ardissia solanacea were assessed by standard procedures. In vitro antioxidant potential was determined by Hydrogen peroxide and DPPH method. The extract was fractionated by Flash Chromatography. The fractions were analysed using HPTLC and further analyzed by HR-MS method to detect and characterize the active phytoconstituents present in it. Results: The highest concentration of flavonoids (371.91± 0.167 mg/g of Quercetin Equivalent), phenolics (10.138±0.010 mg/g of Gallic acid Equivalent) and tannins (148.23±0.510 mg/g of Tannic acid Equivalent) was observed in the ethanol extract. The antioxidant activity by DPPH and H 2 O 2 assay demonstrated that the ethanolic extract (AsEt) showed highest anti-oxidant potential (74.21% and 83.16% respectively). The ASEt was fractionated by using Flash chromatography. As a result, Out of 11 fractions, one fraction namely AsEt3 was selected further based on HPTLC results. The HR-MS analysis of ASEt3 indicated presence of thirteen compounds wherein bergapten was predominantly identified. Conclusion: It was revealed that the leaves of Ardissia solanacea possesses high antioxidant potential. The known phytoconstituents namely quercetin and taxifolin along with one unknown compound were identified through the HR-MS study. Using mass library data, we report herein 2 flavonoids and 1 phenolic in the AsEt extract.
{"title":"Total Polyphenolic Content, Antioxidant Activity and Chromatographic Profiling of Extracts of Ardissia solanacea","authors":"J. Chopade, Asha B. Thomas, S. Chitlange","doi":"10.5530/pres.15.2.038","DOIUrl":"https://doi.org/10.5530/pres.15.2.038","url":null,"abstract":"Background: The current study focuses on the preliminary phytochemical analysis, antioxidant potential and identification of phytochemicals in Ardissia solanacea leaves extract using chromatography and HR-MS. Materials and Methods: The occurrence of phytoconstituents in different extracts of Ardissia solanacea were assessed by standard procedures. In vitro antioxidant potential was determined by Hydrogen peroxide and DPPH method. The extract was fractionated by Flash Chromatography. The fractions were analysed using HPTLC and further analyzed by HR-MS method to detect and characterize the active phytoconstituents present in it. Results: The highest concentration of flavonoids (371.91± 0.167 mg/g of Quercetin Equivalent), phenolics (10.138±0.010 mg/g of Gallic acid Equivalent) and tannins (148.23±0.510 mg/g of Tannic acid Equivalent) was observed in the ethanol extract. The antioxidant activity by DPPH and H 2 O 2 assay demonstrated that the ethanolic extract (AsEt) showed highest anti-oxidant potential (74.21% and 83.16% respectively). The ASEt was fractionated by using Flash chromatography. As a result, Out of 11 fractions, one fraction namely AsEt3 was selected further based on HPTLC results. The HR-MS analysis of ASEt3 indicated presence of thirteen compounds wherein bergapten was predominantly identified. Conclusion: It was revealed that the leaves of Ardissia solanacea possesses high antioxidant potential. The known phytoconstituents namely quercetin and taxifolin along with one unknown compound were identified through the HR-MS study. Using mass library data, we report herein 2 flavonoids and 1 phenolic in the AsEt extract.","PeriodicalId":19813,"journal":{"name":"Pharmacognosy Research","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42230072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Basani Kiranmai, M. Sandhyarani, Ashok Kumar Tiwari
Nymphaea nouchali (Syn. Nymphaea stellata Willd.) from family Nymphaeaceae, is a species of perennial aquatic flowering plant with huge round floating leaves and rhizomes. It is well-known and prominent herb in Ayurveda and Siddha system of medicines with multiple medicinal properties. It comes from southern and eastern regions of Asia, and is a national blossom of Sri Lanka and Bangladesh. Scientific investigation has revealed that it exhibits vast range of pharmacological actions, namely antihyperglycemic, antioxidant, antimicrobial, analgesic, antiinflammatory, antipyretic, antitumor, hepatoprotective, antiulcer, antihelmintic, antinociceptive, immunomodulatory activities etc. Polyphenols, flavonoids, sterols, alkaloids, saponins, tannins, protein, nymphasterol, nymphayol have been recognized as important factors in the medicinal effects of N. nouchali . The present review focuses on pharmacological and phytochemical investigation of N. nouchali .
{"title":"Water Lily (Nymphaea nouchali Burm. f): An Ancient Treasure of Food and Medicine","authors":"Basani Kiranmai, M. Sandhyarani, Ashok Kumar Tiwari","doi":"10.5530/pres.15.2.024","DOIUrl":"https://doi.org/10.5530/pres.15.2.024","url":null,"abstract":"Nymphaea nouchali (Syn. Nymphaea stellata Willd.) from family Nymphaeaceae, is a species of perennial aquatic flowering plant with huge round floating leaves and rhizomes. It is well-known and prominent herb in Ayurveda and Siddha system of medicines with multiple medicinal properties. It comes from southern and eastern regions of Asia, and is a national blossom of Sri Lanka and Bangladesh. Scientific investigation has revealed that it exhibits vast range of pharmacological actions, namely antihyperglycemic, antioxidant, antimicrobial, analgesic, antiinflammatory, antipyretic, antitumor, hepatoprotective, antiulcer, antihelmintic, antinociceptive, immunomodulatory activities etc. Polyphenols, flavonoids, sterols, alkaloids, saponins, tannins, protein, nymphasterol, nymphayol have been recognized as important factors in the medicinal effects of N. nouchali . The present review focuses on pharmacological and phytochemical investigation of N. nouchali .","PeriodicalId":19813,"journal":{"name":"Pharmacognosy Research","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44643945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Heredia-Mercado, F. Delgado-Vargas, L. U. Osuna-Martínez, E. Noguera-Corona, J. López-Valenzuela, R. Ramos-Payán, G. López-Angulo
Background: Echeveria subrigida extracts have biological activities of human health importance. However, the in vivo effects on glucose levels and chronic toxicity are unknown. Objectives: To analyse the in vivo hypoglycemic and antihyperglycemic effects (50, 100, and 200 mg/kg b.w.) and chronic toxicity (1000 mg/kg b.w. for 270 days) of the hydroalcoholic extract of E. subrigida (HE–Es) in BALB/c mice. Materials and Methods: The HE–Es was analysed by HPLC. Glucose levels were measured to establish the effects on glycemia. Different parameters were registered in the toxicity assay: e.g. , feed consumption, appearance/behaviour, biochemical and haematological parameters and liver and kidney histologies. Results: Quercetin–3-O -β-glucoside and isorhamnetin–3-O -β-glucoside were the main flavonoids in the HE–Es. Glycemia was reduced by the HE–Es (200 mg/kg b.w., 49.1%) and glibenclamide (10 mg/kg b.w., 52%) treatments. Comparing the antihyperglycemic activities, similar reductions were found between HE–Es (100 mg/kg b.w., 29.32%; 200 mg/kg, 28.99%) and acarbose (10 mg/kg b.w., 19.87%) treatments. On the other hand, the HE–Es was innocuous in mice (LD 50 > 1000 mg/kg b.w.), and the results suggested that HE–Es had adaptogenic, and immunostimulant activities. The hepatic and renal histologies were normal; however, male mice showed level zero steatosis that disappeared in the HE–Es satellite after treatment withdrawal. Conclusion: This study reports for the first time the in vivo effects on blood glucose levels of HE–Es and chronic toxicity of a Crassulaceae plant, supporting the antidiabetic potential and safety of HE–Es. Future studies must corroborate the effects of HE–Es in humans, allowing its use in high-value formulations.
{"title":"Antidiabetic Potential and Chronic Toxicity of Hydroalcoholic Extract of Echeveria subrigida Leaves","authors":"B. Heredia-Mercado, F. Delgado-Vargas, L. U. Osuna-Martínez, E. Noguera-Corona, J. López-Valenzuela, R. Ramos-Payán, G. López-Angulo","doi":"10.5530/pres.15.2.034","DOIUrl":"https://doi.org/10.5530/pres.15.2.034","url":null,"abstract":"Background: Echeveria subrigida extracts have biological activities of human health importance. However, the in vivo effects on glucose levels and chronic toxicity are unknown. Objectives: To analyse the in vivo hypoglycemic and antihyperglycemic effects (50, 100, and 200 mg/kg b.w.) and chronic toxicity (1000 mg/kg b.w. for 270 days) of the hydroalcoholic extract of E. subrigida (HE–Es) in BALB/c mice. Materials and Methods: The HE–Es was analysed by HPLC. Glucose levels were measured to establish the effects on glycemia. Different parameters were registered in the toxicity assay: e.g. , feed consumption, appearance/behaviour, biochemical and haematological parameters and liver and kidney histologies. Results: Quercetin–3-O -β-glucoside and isorhamnetin–3-O -β-glucoside were the main flavonoids in the HE–Es. Glycemia was reduced by the HE–Es (200 mg/kg b.w., 49.1%) and glibenclamide (10 mg/kg b.w., 52%) treatments. Comparing the antihyperglycemic activities, similar reductions were found between HE–Es (100 mg/kg b.w., 29.32%; 200 mg/kg, 28.99%) and acarbose (10 mg/kg b.w., 19.87%) treatments. On the other hand, the HE–Es was innocuous in mice (LD 50 > 1000 mg/kg b.w.), and the results suggested that HE–Es had adaptogenic, and immunostimulant activities. The hepatic and renal histologies were normal; however, male mice showed level zero steatosis that disappeared in the HE–Es satellite after treatment withdrawal. Conclusion: This study reports for the first time the in vivo effects on blood glucose levels of HE–Es and chronic toxicity of a Crassulaceae plant, supporting the antidiabetic potential and safety of HE–Es. Future studies must corroborate the effects of HE–Es in humans, allowing its use in high-value formulations.","PeriodicalId":19813,"journal":{"name":"Pharmacognosy Research","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45810375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Bodas, Vaibhav Mukund Shinde, Deshmukh Vishal, D. Sheetal
Background: Rottlerin, a natural polyphenolic ketone is a major constituent of Mallotus philippensis (Lam.) Mull. Arg. plant. Although, less explored it has diverse array of therapeutic applications. Objectives: The current work aimed to develop novel, simple, speedy, accurate, potent High Performance Thin Layer Chromatography Method (HPTLC) to separate, and quantify rottlerin from the herbal topical patch In-House formulation. Materials and Methods: This was the foremost attempt to develop and validate HPTLC method using Analytical Quality by design (AQbD) approach. Box Behnken design (BBD) coupled with response surface methodology approach was followed for the systematic optimization. The end results of toluene content, chamber conditioning time, and solvent front on R f value of rottlerin was studied. The optimised method was validated as per ICH guidelines. Results: For HPTLC, stationary phase used was aluminium plates 60F 254 coated with silica gel as. AQbD optimised conditions were mobile phase proportion namely toluene: ethyl acetate: methanol: ammonia (5:4:2:0.2), development distance 80 mm, band width 6mm, and chamber saturation time 10 min. The method generated well resolved and compact bands at R f of 0.41±0.05. The developed method exhibited high accuracy, precision, robustness, and recovery. The quantity of Rottlerin in developed herbal patch was found to be 134.8 ng/band. Conclusion: In a nutshell, the present study undeniably vouches for a QbD based method development approach for Rottlerin and can be extrapolated to estimate it in other herbal extracts, or marketed formulations.
{"title":"Analytical Quality by Design (AQBD) Assisted Development and Validation of HPTLC Method for Estimation of Rottlerin in Topical Patch Formulation","authors":"K. Bodas, Vaibhav Mukund Shinde, Deshmukh Vishal, D. Sheetal","doi":"10.5530/pres.15.2.029","DOIUrl":"https://doi.org/10.5530/pres.15.2.029","url":null,"abstract":"Background: Rottlerin, a natural polyphenolic ketone is a major constituent of Mallotus philippensis (Lam.) Mull. Arg. plant. Although, less explored it has diverse array of therapeutic applications. Objectives: The current work aimed to develop novel, simple, speedy, accurate, potent High Performance Thin Layer Chromatography Method (HPTLC) to separate, and quantify rottlerin from the herbal topical patch In-House formulation. Materials and Methods: This was the foremost attempt to develop and validate HPTLC method using Analytical Quality by design (AQbD) approach. Box Behnken design (BBD) coupled with response surface methodology approach was followed for the systematic optimization. The end results of toluene content, chamber conditioning time, and solvent front on R f value of rottlerin was studied. The optimised method was validated as per ICH guidelines. Results: For HPTLC, stationary phase used was aluminium plates 60F 254 coated with silica gel as. AQbD optimised conditions were mobile phase proportion namely toluene: ethyl acetate: methanol: ammonia (5:4:2:0.2), development distance 80 mm, band width 6mm, and chamber saturation time 10 min. The method generated well resolved and compact bands at R f of 0.41±0.05. The developed method exhibited high accuracy, precision, robustness, and recovery. The quantity of Rottlerin in developed herbal patch was found to be 134.8 ng/band. Conclusion: In a nutshell, the present study undeniably vouches for a QbD based method development approach for Rottlerin and can be extrapolated to estimate it in other herbal extracts, or marketed formulations.","PeriodicalId":19813,"journal":{"name":"Pharmacognosy Research","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44246464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. J. Desamero, Mikaela Bernadette Andres Rabino, Maria Angelica Rimas Tayao, M. Ang, J. Bariuan, Roxanne P. Gapasin, T. M. Collantes, M. M. R. Rondina, C. Fernandez-Colorado, C. Cervancia, M. Estacio
Background: Honey, a sweet sugar-rich bee-derived product, has been widely recognized in the realm of Ayurveda and Pharmacognosy for the treatment of various inflammatory conditions including inflammatory bowel disease, asthma, arthritis, and gastric ulcer. However, the anti-inflammatory effect of Philippine honey obtained from local stingless bees remains unexplored and poorly investigated. Hence, this study delved on the anti-inflammatory potential of topically applied Philippine stingless bee honey (PSH) using the λ-Carrageenan-induced mouse model of paw edema. Materials and Methods: A total of 30, male ICR mice of six weeks of age were randomly divided into the following groups ( n =10 per group) as follows: Distilled water, 1% Diclofenac sodium, and Honey-treated group. All treatments were administered immediately after Carrageenan injection and then every 8 hr during the 24-hr test duration. Results: Repeated topical application of PSH significantly attenuated the gross hind paw swelling observed at the onset of the 6 hr post-induction ( pi ) until the 24 hr pi with Carrageenan in contrast to the Distilled water-treated group. This corresponded histologically to a marked reduction in dermal thickness, dermal edema, and leukocytic infiltration. Whereas, at the cytokine level, this correlated to significant suppression of the circulating blood levels of pro-inflammatory cytokines, TNF-α, IL-1β, and IL-6. Conclusion: Based on these results, honey from the Philippine stingless bees shows convincing anti-inflammatory activity which is partly mediated through the regulation of the expression of inflammation-associated cytokines.
{"title":"Abrogation of Acute Inflammation in ICR Mice with Topical Administration of Philippine Stingless Bee (Tetragonula biroi Friese) Honey","authors":"M. J. Desamero, Mikaela Bernadette Andres Rabino, Maria Angelica Rimas Tayao, M. Ang, J. Bariuan, Roxanne P. Gapasin, T. M. Collantes, M. M. R. Rondina, C. Fernandez-Colorado, C. Cervancia, M. Estacio","doi":"10.5530/pres.15.2.028","DOIUrl":"https://doi.org/10.5530/pres.15.2.028","url":null,"abstract":"Background: Honey, a sweet sugar-rich bee-derived product, has been widely recognized in the realm of Ayurveda and Pharmacognosy for the treatment of various inflammatory conditions including inflammatory bowel disease, asthma, arthritis, and gastric ulcer. However, the anti-inflammatory effect of Philippine honey obtained from local stingless bees remains unexplored and poorly investigated. Hence, this study delved on the anti-inflammatory potential of topically applied Philippine stingless bee honey (PSH) using the λ-Carrageenan-induced mouse model of paw edema. Materials and Methods: A total of 30, male ICR mice of six weeks of age were randomly divided into the following groups ( n =10 per group) as follows: Distilled water, 1% Diclofenac sodium, and Honey-treated group. All treatments were administered immediately after Carrageenan injection and then every 8 hr during the 24-hr test duration. Results: Repeated topical application of PSH significantly attenuated the gross hind paw swelling observed at the onset of the 6 hr post-induction ( pi ) until the 24 hr pi with Carrageenan in contrast to the Distilled water-treated group. This corresponded histologically to a marked reduction in dermal thickness, dermal edema, and leukocytic infiltration. Whereas, at the cytokine level, this correlated to significant suppression of the circulating blood levels of pro-inflammatory cytokines, TNF-α, IL-1β, and IL-6. Conclusion: Based on these results, honey from the Philippine stingless bees shows convincing anti-inflammatory activity which is partly mediated through the regulation of the expression of inflammation-associated cytokines.","PeriodicalId":19813,"journal":{"name":"Pharmacognosy Research","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47667939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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