@article {192, title = {Anticataract Activity of Forskolin by Inhibiting Polyol Pathway for the Prevention of Diabetic Complication}, journal = {Pharmacognosy Research}, volume = {11}, year = {2019}, month = {November,2019}, pages = {352-355}, type = {Original Article}, chapter = {352}, abstract = {

Background: Cataract is the opacification or optical dysfunction of the crystalline lens. Diabetes has been considered to be one of the major risk factors of cataract. Objective: The present study was designed to evaluate the anticataract activity of antioxidants such as Coleus forskohlii (CF) Briq and its phytoconstituent forskolin (FS) which were subjected to prevent cataract formation in vitro on glucose-induced cataract model. Materials and Methods: Goat lenses were incubated in Krebs-Ringer bicarbonate buffer pH 7.5 (supplemented with Taxim and streptomycin) containing 55 mM glucose (cataractogenesis) with fidarestat; CF methanolic extract; and FS at a concentration of 1 {\textmu}g/mL, 100 {\textmu}g/mL, and 10 {\textmu}g/mL for 24 hr at 37{\textdegree}C with 5\% CO2 and 95\% air. Glucose-induced opacification of goat lens began 8{\textendash}10 hr\ after incubation and was complete in 24 hr. Polyol (galactitol) levels in incubated lenses were estimated spectrophotometrically. Results: Cataractous lenses showed higher content of galactitol. However, lens treated with fidarestat, CF methanolic extract, and its phytoconstituent FS showed lower content of galactitol. Conclusion: CF and FS prevented the formation and progress of cataract by glucose, as evidenced by lens transparencies with photographic evaluation and lens galactitol levels.

}, keywords = {Aldose reductase, Cataract, Coleus forskohlii, Forskolin, Polyol pathway.}, doi = {10.4103/pr.pr_68_19}, author = {Damera Sujatha and Ajmera Rama Rao and Ciddi Veeresham} } @article {533, title = {Picroside I and Picroside II from Tissue Cultures of Picrorhiza kurroa}, journal = {Pharmacognosy Research}, volume = {9}, year = {2017}, month = {December 2017}, pages = {s53-s56}, type = {Original Article}, chapter = {s53}, abstract = {

Background: Picrorhiza kurroa (PK) belongs to Scrophulariaceae family and is a representative endemic, medicinal herb, widely distributed throughout the higher altitudes of alpine Himalayas from west to east, between 3000 and 4500 m above mean sea level. Objective: The objective of the present study is to assess the production of picroside I and picroside II from tissue cultures of PK. Materials and Methods: Auxiliary shoot tips of PK were incubated in Murashige and Skoog medium supplemented with indole-3-butyric acid and kinetin phytohormones. The callus produced was collected at different time intervals and was processed for extraction of picroside I and picroside II followed by thin layer chromatography and high-performance liquid chromatography HPLC analysis. Results: The maximum growth index was found to be 5.109 {\textpm} 0.159 at 16-week-old callus culture. The estimation of picroside-I and picroside-II was carried out by (HPLC) analysis; quantity of secondary metabolite found to be 16.37 {\textpm} 0.0007 mg/g for PK-I and 6.34 {\textpm} 0.0012 mg/g for PK-II. Conclusion: This is the first attempt to produce the Picroside-I and II in large amount by the tissue culture technique. It can be observed that the method of callus culture can be used in production of secondary metabolites Picroside-I and II from PK

}, keywords = {Picrorhiza kurroa, Picroside I, Picroside II, Tissue cultures}, doi = {10.4103/pr.pr_89_17}, author = {Yamjala Ganeshkumar and Ajmera Ramarao and Ciddi Veeresham} } @article {522, title = {Antihyperglycemic and Insulin Secretagogue Activities of Abrus precatorius Leaf Extract}, journal = {Pharmacognosy Research}, volume = {8}, year = {2016}, month = {August 2016}, pages = {303-308}, type = {Original Article}, chapter = {303}, abstract = {

Aim: Abrus precatorius leaves methanolic extract (APME) was evaluated for in vivo antihyperglycemic activity and in vitro insulinotropic effect. Materials and Methods: In vivo antihyperglycemic and insulin secretagogue activities were assessed in streptozotocin-induced diabetic rats by oral administration of APME (200 mg/kg body weight [bw]) for 28 days. In vitro insulin secretion mechanisms were studied using mouse insulinoma beta cells (MIN6-β). In vivo body weight and blood glucose and in vivo and in vitro insulin levels were estimated. Results: In diabetic rats, APME treatment significantly restored body weight (26.39\%), blood glucose (32.39\%), and insulin levels (73.95\%) in comparison to diabetic control rats. In MIN6-β cells, APME potentiated insulin secretion in a dependent manner of glucose (3{\textendash}16.7 mM) and extract (5{\textendash}500 μg/mL) concentration. Insulin secretagogue effect was demonstrated in the presence of 3-isobutyl-1-methyl xanthine, glibenclamide, elevated extracellular calcium, and K+ depolarized media. Insulin release was reduced in the presence of nifedipine, ethylene glycol tetra acetic acid (calcium blocking agents), and diazoxide (potassium channel opener). Conclusion: The study suggests that APME antihyperglycemic activity might involve the insulin secretagogue effect by pancreatic beta cells physiological pathways via K+-ATP channel dependent and independently, along with an effect on Ca2+ channels.

}, keywords = {Calcium, Diabetes, Glibenclamide, insulin secretagogue, K+-ATP channel, mouse insulinoma beta cells}, doi = {10.4103/0974-8490.188881}, author = {Balekari Umamahesh and Ciddi Veeresham} } @article {637, title = {Anti-arthritic Activity of Root Bark of Oroxylum Indicum (L.) Vent Against Adjuvant-induced Arthritis}, journal = {Pharmacognosy Research}, volume = {5}, year = {2013}, month = {April 2013}, pages = {121-128}, type = {Original Article }, chapter = {121}, abstract = {

Background:Oroxylum indicum\ (Bignoniaceae) also known as Sonapatha is an indigenous medicinal plant widely used in Ayurvedic medicine for over thousands of years. It is an active ingredient of well-known Ayurvedic formulations such as Chyawanprash and Dasamula. Root bark of this plant has tonic and astringent properties and it is also used in rheumatism.\ Objective:\ The present investigation was carried out to evaluate the anti-arthritic activity of different extracts of root bark of\ Oroxylum indicum\ against adjuvant - induced arthritis in rats.\ Materials and Methods:\ Male Wistar rats were used in this study. Arthritis was induced by injecting 0.1 ml Freund{\textquoteright}s complete adjuvant intra-dermally into the left hind paw of the rats. The paw volume, hematological, biochemical, radiographic and histopathological aspects were evaluated.\ Results:\ The relative percentage inhibition potential of paw volume in rats treated with various extracts of\ Oroxylum indicum\ was found to be ethyl acetate extract (67.69\%) \>chloroform extract (64.61\%) \>n-butanol extract (58.46\%) respectively. The hematological parameters like RBC count, hemoglobin content showed significant increase while there was a significant decrease in total WBC count and ESR in all the groups of animals pretreated with root bark extracts. The biochemical parameters such as catalase, glutathione contents showed a significant increase while the lipid peroxide and Cathepsin-D content decreased significantly only in case of ethyl acetate pretreated rats when compared to others.\ Conclusion:\ The present study suggests that the chloroform, ethyl acetate and n-butanol extracts of root bark of\ Oroxylum indicum\ exhibit anti-arthritic activity. The order of activity of extracts was found to be ethyl acetate \>chloroform \>n-butanol respectively.

}, keywords = {Anti-arthritic Activity, Biochemical parameters, Freund's Complete Adjuvant, Histopathology, Oroxylum indicum}, doi = { 10.4103/0974-8490.110543}, author = {Mamatha Karnati and Rodda H Chandra and Ciddi Veeresham and Bookya Kishan} }