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1.
J Tradit Complement Med ; 7(4): 466-470, 2017 Oct.
Article in English | MEDLINE | ID: mdl-29034194

ABSTRACT

OBJECTIVE: In vitro antidiabetic efficacy of Cucurbita maxima seed extract (CMSE) has already been studied in our previous findings. Thus, in order to validate these findings in biological system, in vivo antidiabetic activity of aqueous extract was investigated in normal as well as diabetic experimental models. METHODS: Variable doses of extract were administered orally to normal and STZ induced mild diabetic rats during fasting blood glucose (FBG) and glucose tolerance test (GTT) studies. In order to determine the extract's antidiabetic potential long-term FBG and post prandial glucose (PPG) studies were also carried out. RESULTS: Most effective dose of 200 mg kg-1 of CMSE decreases the blood glucose level (BGL) in normal rats by 29.02% at 6 h during FBG studies and 23.23% at 3 h during GTT. However, the maximum reduction observed in BGL of mild diabetic rats during GTT the same interval of time was 26.15%. Moreover, in case of severely diabetic rats a significant reduction of 39.33% was observed in FBG levels whereas, in case of positive control, rats treated with 2.5 mg kg-1 of glipizide, a fall of 42.9% in FBG levels was observed after 28 days. Results of PPG level also showed a fall of 33.20% in severely diabetic rats as compared to the positive control showing a fall of 44.2% at the end of the 28 days. CONCLUSION: Thus, the present study validate the hypoglycemic and antidiabetic effect of CMSE and hence this extract could be explored further for developing as a novel antidiabetic agent.

3.
J Agric Food Chem ; 62(16): 3548-52, 2014 Apr 23.
Article in English | MEDLINE | ID: mdl-24716724

ABSTRACT

Several (+)- and (-)-α-pinene derivatives were synthesized and evaluated for their antimicrobial activity toward Gram-positive bacteria Micrococcus luteus and Staphylococcus aureus, Gram-negative bacterium Escherichia coli, and the unicellular fungus Candida albicans using bioautographic assays. (+)-α-Pinene 1a showed modest activity against the test organisms, whereas (-)-α-pinene 1b showed no activity at the tested concentration. Of all the α-pinene derivatives evaluated, the ß-lactam derivatives (10a and 10b) were the most antimicrobial. The increase in the antimicrobial activity of 10a compared to 1a ranged from nearly 3.5-fold (C. albicans) to 43-fold (S. aureus). The mean ± standard deviation for the zone of inhibition (mm) for 10a (C. albicans) was 31.9 ± 4.3 and that for S. aureus was 51.1 ± 2.9. Although (-)-α-pinene 1b was not active toward the test microorganisms, the corresponding ß-lactam 10b, amino ester 13b, and amino alcohol 14b showed antimicrobial activity toward the test microorganisms. The increase in the antimicrobial activity of 10b compared to 1b ranged from 32-fold (S. aureus) to 73-fold (M. luteus). The mean ± standard deviation for the zone of inhibition (mm) for 10b (S. aureus) was 32.0 ± 0.60 and that for M. luteus was 73.2 ± 0.30.


Subject(s)
Anti-Infective Agents/chemical synthesis , Anti-Infective Agents/pharmacology , Monoterpenes/chemical synthesis , Monoterpenes/pharmacology , Anti-Infective Agents/chemistry , Bacteria/drug effects , Bicyclic Monoterpenes , Candida albicans/drug effects , Microbial Sensitivity Tests , Molecular Structure , Monoterpenes/chemistry , Structure-Activity Relationship
4.
Article in English | MEDLINE | ID: mdl-24228060

ABSTRACT

The demand for interdisciplinary research is increasing in the new millennium to help us understand complex problems and find solutions by integrating the knowledge from different disciplines. The present review is an excellent example of this and shows how unique combination of physics, chemistry, and biological techniques can be used for the evaluation of Indian medicinal herbs used for treating diabetes mellitus. Laser-induced breakdown spectroscopy (LIBS) is a sensitive optical technique that is widely used for its simplicity and versatility. This review presents the most recent application of LIBS for detection of glycemic elements in medicinal plants. The characteristics of matrices, object analysis, use of laser system, and analytical performances with respect to Indian herbs are discussed.

5.
ISRN Pharmacol ; 2013: 473059, 2013.
Article in English | MEDLINE | ID: mdl-23984089

ABSTRACT

The present study was undertaken to scientifically validate the antidiabetic activity of aqueous fruit extract of Trichosanthes dioica Roxb. (Family: Cucurbitaceae) which has been traditionally used for managing diabetes mellitus. This plant commonly known as "Sespadula" in English has not been explored scientifically so far for its glycemic potential except by our research group. The study was conducted with variable doses on normal, mild, and severe diabetics models, and several biochemical parameters including blood glucose level (BGL) were assessed. Maximum fall in BGL of 23.8% in normal rats and of 31.3% in mild diabetic rats was observed during their fasting blood glucose (FBG) and glucose tolerance test (GTT) with the dose of 1000 mg kg(-1). In severely diabetic animals after 4 weeks treatment with FBG, postprandial glucose, total cholesterol, and triglyceride levels were reduced by 28.7, 30.7, 57.2, and 18.5%, whereas high density lipoprotein, total protein, hemoglobin, and body weight were increased by 33.0, 36.7, 15.7 and 16.7%, respectively. Moreover, urine sugar was reduced from +4 to +1. Thus, the study scientifically validates the traditional use of T. diocia in diabetes management and could be developed as an effective oral agent for treating diabetes mellitus and complications associated with it.

6.
Methods Mol Biol ; 1028: 147-51, 2013.
Article in English | MEDLINE | ID: mdl-23740118

ABSTRACT

For centuries now, antioxidants have been known to provide better health by neutralizing the free radicals which are continuously produced in the human body. In normal circumstances, self-antioxidant defense system of the human body is capable of quantitatively managing the free radicals. However, in certain cases, which are at the threshold of developing diseases like diabetes and Alzheimer's, the human body calls for an external source of antioxidants. Since orally delivered antioxidants are easily destroyed by acids and enzymes present in the human system, only a small portion of what is consumed actually gets absorbed. Hence, there is a recognized and urgent need to develop effective methods for efficiently delivering antioxidants to the required sites. This chapter provides an in-depth overview and analysis of two such methods and processes-nano-encapsulation and nano-dendrimers. Among the various nanoscale delivery mechanisms, nano-encapsulation has emerged as a key and efficient delivery process. Designed as a spongelike polymer, nano-encapsulated antioxidants provide a protective vehicle which keeps antioxidants from being destroyed in the human gut and ensures their better absorption in the digestive tract. In fact, the nano-capsules bind themselves to the intestinal walls and pour antioxidants directly into the intestinal cells, which allow them to be absorbed directly into the blood stream. Another distinguished and popular mode for delivering antioxidants is that of nano-polymers known as dendrimers. Dendrimers involve multiple branches and sub-branches of atoms radiating out from a central core. Dendrimers afford a high level of control over their architectural design, including their size, shape, branching length or density, and surface functionality. Such flexibility makes these nanostructures ideal carriers in biomedical applications such as drug delivery, gene transfection, and imaging. Antioxidant dendrimers, made out of numerous units of antioxidants connected with each other in a branched fashion, provide numerous possible sites to couple with an active species and have enhanced free radicals scavenging potency. These dendrimer chains are biocompatible, biodegradable with nontoxic degradation products, and well suited for targeted drug delivery and other biomedical applications. Recent successes in simplifying and optimizing the synthesis of dendrimers, such as the "lego" and "click" approaches, provide a large variety of structures while at the same time reducing the cost of their production. The use of these highly branched, nanometer-sized, polymeric materials as nano-antioxidants for prevention and treatment of human diseases, associated with oxidative stress, is of immense public health relevance globally.


Subject(s)
Antioxidants/administration & dosage , Dendrimers/administration & dosage , Drug Carriers/administration & dosage , Antioxidants/chemistry , Dendrimers/chemistry , Drug Carriers/chemistry , Drug Compounding , Humans , Liposomes , Nanocapsules/administration & dosage , Nanocapsules/chemistry , Nanomedicine , Oxidative Stress , Particle Size , Surface Properties
7.
Asian Pac J Trop Med ; 6(6): 426-32, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23711700

ABSTRACT

OBJECTIVE: To evaluate the antioxidant activity of aqueous extract of Moringa oleifera (M. oleifera) young leaves by in vivo as well as in vitro assays. METHODS: In vitro study included estimation of total phenolic, total flavonol, total flavonoid and total antioxidant power (FRAP assay). In addition, in vivo study was done with the identified most effective dose of 200 mg/kg of its lyophilized powder on normal and diabetic rats. Its effect on different oxidative free radical scavenging enzymes,viz, superoxide dismutase (SOD), catalase (CAT), glutathione-S-transferase (GST), lipid peroxide (LPO) contents were measured. RESULTS: Significant increase in activities of SOD, CAT, GST while, a decrease in LPO content was observed. Whereas, total phenolic, flavonoid and flavonol contents in the extract were found to be 120 mg/g of GAE, 40.5 mg/g of QE and 12.12 mg/g of QE, respectively. On the other hand, FRAP assay results of M. oleifera leaves was (85.00 ± 5.00) µM/g of extract powder. CONCLUSIONS: The significant antioxidant activities of M. oleifera leaves from both in vivo as well as in vitro studies suggests that the regular intake of its leaves through diet can protect normal as well as diabetic patients against oxidative damage.


Subject(s)
Antioxidants/pharmacology , Diabetes Mellitus, Experimental/drug therapy , Moringa oleifera/chemistry , Oxidative Stress/drug effects , Plant Extracts/pharmacology , Analysis of Variance , Animals , Catalase/metabolism , Diabetes Mellitus, Experimental/metabolism , Flavonoids/analysis , Glutathione Transferase/metabolism , Lipid Peroxides/metabolism , Male , Organ Specificity , Phenols/analysis , Plant Extracts/analysis , Plant Leaves/chemistry , Rats , Rats, Wistar , Superoxide Dismutase/metabolism
8.
Lasers Med Sci ; 28(2): 579-87, 2013 Feb.
Article in English | MEDLINE | ID: mdl-22581389

ABSTRACT

Impurity-free, controlled synthesis of iron oxide nanoparticle, in ultrapure water and chitosan, using laser ablation technique and its application for type II diabetes management through oral delivery of insulin-loaded iron oxide-chitosan nanocomposite is presented. The purity of the nanoparticle is monitored by laser-induced breakdown spectroscopy technique. The synthesized iron oxide nanoparticle was characterized by UV/Vis absorption spectroscopy, and morphological study was performed by scanning electron microscope. The intensity of absorption peak and wavelength corresponding to peak of the nanoparticle prepared in water and chitosan is dependent on the laser energy used for ablation purpose. Red shift in the absorption peak wavelength was observed by increasing laser energy. In addition to red shift, an increase in intensity of absorption peak was also seen when ablating laser energy was increased. The appearance of a weak peak around 295 nm was observed in iron oxide-chitosan nanocomposite. The spherical shape of the nanoparticle synthesized at the lower laser energy has gradually changed to triangular and irregular shaped structures as ablating laser energy was increased. The spherical nanoparticles loaded with insulin were used for oral delivery for diabetic management. The iron oxide-chitosan nanocomposite loaded with insulin has resulted in reduction in blood glucose level in mild diabetic, subdiabetic, and severely diabetic rats; more than 51 % reduction in blood glucose level, compared to the control group, has been achieved in the present work.


Subject(s)
Diabetes Mellitus, Experimental/drug therapy , Ferric Compounds/chemical synthesis , Insulin/administration & dosage , Metal Nanoparticles/administration & dosage , Metal Nanoparticles/chemistry , Animals , Blood Glucose/metabolism , Chemistry Techniques, Synthetic , Chitosan/chemistry , Colloids/chemistry , Female , Ferric Compounds/administration & dosage , Laser Therapy , Male , Rats , Rats, Wistar , Spectrophotometry, Ultraviolet
9.
Pharm Biol ; 49(1): 32-7, 2011 Jan.
Article in English | MEDLINE | ID: mdl-20687786

ABSTRACT

CONTEXT: Many plants have been explored scientifically and systematically and claimed to be useful for the treatment of diabetes mellitus by various research groups worldwide. The present study is a further effort in the direction of developing a novel oral antidiabetic agent of high potential with minimal or no side effects. OBJECTIVE: This study screened the glycemic attributes of Raphanus sativus L. (Brassicaceae) root juice in normal as well as sub- and mild-diabetic models. MATERIALS AND METHODS: The variable doses of 100, 200, 300, and 400 mg kg(-1) body weight (bw) of the extract were administered orally to normal and streptozotocin (STZ)-induced sub- and mild-diabetic rats in order to define its glycemic potential. Glibenclamide was used as a reference drug. RESULTS: The dose of 300 mg kg(-1)bw was identified as the most effective dose which lowers the blood glucose level (BGL) by 33.4% (p < 0.001) at 6 h during fasting blood glucose (FBG) studies in normal rats. However, the glucose tolerance test (GTT) revealed the maximum reduction of 15.9% (p < 0.001) in BGL at 3 h in normal rats with the same dose, whereas the reduction observed was by 23.8 and 28.3% (p < 0.001) in sub- and mild-diabetic rats, respectively, at the same interval of time. DISCUSSION AND CONCLUSION: This evidence clearly indicates that Raphanus sativus root juice possesses good hypoglycemic potential coupled with antidiabetic efficacy.


Subject(s)
Diabetes Mellitus, Experimental/drug therapy , Hypoglycemic Agents/pharmacology , Plant Extracts/pharmacology , Raphanus/chemistry , Animals , Blood Glucose/drug effects , Dose-Response Relationship, Drug , Glucose Tolerance Test , Glyburide/pharmacology , Hypoglycemic Agents/administration & dosage , Hypoglycemic Agents/isolation & purification , Male , Plant Extracts/administration & dosage , Plant Roots , Rats , Rats, Wistar , Streptozocin
10.
Indian J Med Res ; 131: 820-4, 2010 Jun.
Article in English | MEDLINE | ID: mdl-20571173

ABSTRACT

BACKGROUND & OBJECTIVES: The study evaluated the hypolipidaemic and hepatoprotective effects of unripe Psidium guajava fruit peel aqueous extract in streptozotocin (STZ) induced severely diabetic rats by assaying their triglyceride (TG), total cholesterol (TC), high density lipoprotein (HDL) cholesterol, alkaline phosphatase (ALKP), asperate amino transeferase (AST), alanine amino transferase (ALT) and creatanine (CRTN) levels. METHOD: Severely diabetic albino Wister rats of same age group were treated orally once a day upto 3wk with a dose of 400 mg/kg bw of lyophilized extract. TG, TC, HDL, ALKP, AST, ALT and CRTN were estimated. LDL and VLDL cholesterol levels were calculated from the above measurements by using Friedwald formula. RESULTS: A significant decrease in TG (P<0.01), TC (P<0.01), HDL (P<0.001) VLDL (P<0.001) and LDL (P<0.01), ALKP (P<0.01), AST (P<0.05), ALT (P<0.05) and CRTN (P<0.001) levels were observed after 21 days treatment of aquous extract of raw fruit peel compared to pre treatment levels. INTERPRETATION & CONCLUSION: The extract showed significant hypolipidaemic activity in addition to its hypoglycaemic and antidiabetic activity. In view of its relative non-toxic nature P. guajava raw fruit peel may be a potential antidiabetic agent.


Subject(s)
Diabetes Mellitus, Experimental/drug therapy , Fruit/chemistry , Hypolipidemic Agents/therapeutic use , Liver/metabolism , Plant Extracts/therapeutic use , Psidium/chemistry , Animals , Cholesterol/blood , Cholesterol, HDL/blood , Hypoglycemic Agents/therapeutic use , Rats , Rats, Wistar , Streptozocin , Tolbutamide/therapeutic use , Triglycerides/blood
11.
Methods Mol Biol ; 594: 123-8, 2010.
Article in English | MEDLINE | ID: mdl-20072913

ABSTRACT

Erythrocytes are readily available cells and a good model system to study the health status of individuals with pathologic complications. It can also serve as a meaningful target to study toxicant/xenobiotic-induced damages. We have prepared different concentrations of a carbamate pesticide (carbofuran) and carried out experiments to determine its toxicity on erythrocytes in terms of mean erythrocyte fragility (MEF). We observed a significant alteration in the osmotic fragility upon treatment with carbofuran. In our earlier studies we have observed a good correlation between OF and OS in diabetic subjects. Study reveals OF as a potential biomarker of oxidative membrane damage in pathologic conditions as well as toxicant/xenobiotic/pesticide-induced oxidative membrane damage to erythrocytes.


Subject(s)
Carbamates/toxicity , Erythrocyte Membrane/drug effects , Erythrocytes/drug effects , Osmotic Fragility/drug effects , Pesticides/toxicity , Erythrocyte Membrane/metabolism , Erythrocytes/metabolism , Humans , Oxidation-Reduction/drug effects
12.
Methods Mol Biol ; 594: 275-85, 2010.
Article in English | MEDLINE | ID: mdl-20072924

ABSTRACT

The present study deals with the scientific evaluation of antioxidant potential of aqueous extract of Trichosanthes dioica fruits on diabetes-induced oxidative stress of diabetic rats. The most effective dose of mg/kg bw of fruit aqueous extract was given orally to diabetic rats for 30 days. Different oxidative stress parameters were analyzed in various tissues of control and treated diabetic rats. The observed elevated level of lipid peroxidation (LPO) comes down significantly (p < 0.05) and decreased activities of antioxidant enzymes such as catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx), and glutathione-S-transferase (GST) got increased (p < 0.05) significantly of diabetic rats on extract treatment. Laser-Induced Breakdown Spectroscopy (LIBS) has been used as an analytical tool to detect major and minor elements like Mg, Fe, Na, K, Zn, Ca, H, O, C, and N present in the extract. The higher concentration of Ca(2+), Mg(2+), and Fe(2+), as reflected by their intensities are responsible for antioxidant potential of T. dioica.


Subject(s)
Antioxidants/metabolism , Spectrum Analysis/methods , Animals , Catalase/metabolism , Diabetes Mellitus, Experimental/drug therapy , Diabetes Mellitus, Experimental/metabolism , Glutathione Peroxidase/metabolism , Glutathione Transferase/metabolism , Plant Extracts/chemistry , Plant Extracts/therapeutic use , Rats , Superoxide Dismutase/metabolism , Trichosanthes/chemistry
13.
Indian J Clin Biochem ; 25(2): 175-81, 2010 Apr.
Article in English | MEDLINE | ID: mdl-23105906

ABSTRACT

This study deals with the effects of freeze dried rhizome powder of Curcuma longa (C. longa) dissolved in milk on normal as well as diabetic models. Diabetes of type II and type I was within 3 days of a single administration of doses of 45 and 65 mg kg(-1) of streptozotocin respectively. Various parameters such as blood glucose levels, triglycerides, total cholesterol, high density lipoprotein, very low density lipoprotein, low density lipoprotein, serum glutamic oxaloacetic transaminase, serum glutamic pyruvate transaminase, alkaline phosphatase, creatinine, hemoglobin, urine protein and urine sugar in addition to body weight were taken in to consideration and were analyzed after administration of variable doses of rhizome powder. The dose of 200 mg kg(-1) was identified as the most effective dose as it increased HDL, Hb and bw (P<0.05) with significant decrease in the levels of blood glucose, lipid profile and hepatoprotective enzymes (P<0.001).

14.
Indian J Med Res ; 129(5): 561-5, 2009 May.
Article in English | MEDLINE | ID: mdl-19675385

ABSTRACT

BACKGROUND & OBJECTIVE: This study was undertaken to evaluate the glycaemic potential of aqueous extract of Psidium guajava unripe fruit peel on blood glucose level (BGL) of normal and streptozotocin induced mild and severely diabetic rats as an extension of our previous work carried out on Psidium guajava ripe fruit peel. METHODS: The aqueous extract of P. guajava unripe fruits was prepared. Male 6-8 wk old albino Wistar rats were selected for the experiments. Diabetes was induced by streptozotocin infection. Blood glucose levels were measured by glucose oxidase method. Antihyperglycaemic activity of the extract was assessed in mild and severely diabetic rats. RESULTS: The maximum fall of 21.2 per cent (P<0.01) and 26.9 per cent (P<0.01) after 3 h of glucose administration during glucose tolerance test (GTT) was observed in BGL from a dose of 400 mg/kg, identified as the most effective dose, in normal and mild diabetic rats respectively. In severely diabetic rats the maximum fall of 20.8 and 17.5 per cent in fasting blood glucose (FBG) and post prandial glucose (PPG) levels, and 50 per cent (P<0.01) in urine sugar levels was observed with the same dose. Haemoglobin level increased by 5.2 per cent (P<0.05) and body weight by 2.5 per cent (P<0.05) after 21 days treatment. INTERPRETATION & CONCLUSION: Normal, mild and severely diabetic rat models had shown hypoglycaemic as well as antidiabetic effect of the unripe guava fruit peel aqueous extract. Further studies need to be done to characterize the active components of the peel.


Subject(s)
Diabetes Mellitus, Experimental/blood , Fruit/chemistry , Glycemic Index/physiology , Plant Extracts/chemistry , Psidium/chemistry , Analysis of Variance , Animals , Blood Glucose/metabolism , Glucose Oxidase , Male , Plant Extracts/pharmacology , Rats , Rats, Wistar
15.
J Ethnopharmacol ; 123(3): 392-6, 2009 Jun 25.
Article in English | MEDLINE | ID: mdl-19501271

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: In Indian traditional system of medicine, Moringa oleifera Lam. Syn. Moringa pterygosperma Gaerth (Moringaceae) is commonly used as healing herb to treat diabetes. AIM OF THE STUDY: The purpose of the present study was to assess the effect of M. oleifera leaves aqueous extract therapy on glycemic control, haemoglobin, total protein, urine sugar, urine protein and body weight. MATERIALS AND METHODS: Variable doses of 100, 200 and 300 mg kg(-1) of aqueous extract were administered orally by gavage for evaluating their hypoglycemic and antidiabetic effects on fasting blood glucose (FBG), oral glucose tolerance test (OGTT) and post prandial glucose (PPG) of normal and streptozotocin (STZ) induced sub, mild and severely diabetic rats. RESULTS: The dose of 200 mg kg(-1) decreases blood glucose level (BGL) of normal animals by 26.7 and 29.9% during FBG and OGTT studies respectively. In sub and mild diabetic animals the same dose produced a maximum fall of 31.1 and 32.8% respectively, during OGTT. In case of severely diabetic animals FBG and PPG levels were reduced by 69.2 and 51.2% whereas, total protein, body weight and haemoglobin were increased by 11.3, 10.5 and 10.9% respectively after 21 days of treatment. Significant reduction was found in urine sugar and urine protein levels from +4 and +2 to nil and trace, respectively. CONCLUSION: The study validates scientifically the widely claimed use of M. oleifera as an ethnomedicine to treat diabetes mellitus.


Subject(s)
Blood Glucose/metabolism , Diabetes Mellitus, Experimental/drug therapy , Hyperglycemia/drug therapy , Hypoglycemic Agents/therapeutic use , Moringa oleifera , Phytotherapy , Plant Extracts/therapeutic use , Animals , Body Weight/drug effects , Diabetes Mellitus, Experimental/blood , Diabetes Mellitus, Experimental/metabolism , Dose-Response Relationship, Drug , Glucose Tolerance Test , Glycosuria/metabolism , Hemoglobins/metabolism , Hypoglycemic Agents/pharmacology , Plant Extracts/pharmacology , Plant Leaves , Plants, Medicinal , Postprandial Period , Proteinuria/metabolism , Rats , Rats, Wistar
16.
J Ethnopharmacol ; 123(1): 110-4, 2009 May 04.
Article in English | MEDLINE | ID: mdl-19429348

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: Herbal preparations of Ficus bengalensis had been considered as effective, economical and safe ethnomedicines for various ailments in Indian traditional system of medicine. AIM OF STUDY: The present study was aimed to explore scientifically the antidiabetic potential of Ficus bengalensis aerial roots as its bark had already been reported to possess antidiabetic efficacy. MATERIALS AND METHODS: Effect of variable doses of aqueous extract of Ficus bengalensis aerial roots on blood glucose level (BGL) of normal-, sub- and mild-diabetic models have been studied and the results were compared with the reference drug Glipizide and elemental Mg and Ca intake as glycemic elements. RESULTS: The dose of 300 mg kg(-1) showed the maximum fall of 43.8 and 40.7% in BGL during FBG and glucose tolerance test (GTT) studies of normal rats, respectively. The same dose showed a marked reduction in BGL of 54.3% in sub- and 51.7% in mild-diabetic rats during GTT. The concentration of Mg (1.02%) and Ca (0.85%) identified through laser induced breakdown spectroscopy (LIBS) in the most effective dose could be responsible for this high percentage fall in BGL as they take part in glucose metabolism. CONCLUSION: The hypoglycemic effect in normoglycemic and antidiabetic effect in sub- and mild-diabetic models of aqueous extract of aerial roots of Ficus bengalensis are due to the presence of these glycemic elements in high concentration with respect to other elements.


Subject(s)
Ficus/chemistry , Hypoglycemic Agents/pharmacology , Plant Extracts/pharmacology , Plant Roots/chemistry , Animals , Blood Glucose/analysis , Diabetes Mellitus, Experimental/blood , Dose-Response Relationship, Drug , Female , Glucose Tolerance Test , Hypoglycemic Agents/administration & dosage , Lethal Dose 50 , Plant Extracts/administration & dosage , Rats , Rats, Wistar , Streptozocin
17.
Exp Toxicol Pathol ; 61(6): 531-5, 2009 Nov.
Article in English | MEDLINE | ID: mdl-19128948

ABSTRACT

Erythrocytes are prone to oxidative stress due to the presence of hemoglobin and polyunsaturated fatty acids. Oxidative stress (OS) is associated with increased osmotic fragility (OF) of erythrocytes. Organophosphate and organocarbamate pesticides are known to cause OS in erythrocytes. We have investigated the effect of a single sub-acute dose of carbofuran (CF), an organocarbamate pesticide and ameliorating role of vitamin C on OF and OS in erythrocytes of Wistar rats. OF and OS were assessed by determining membrane stability in terms of erythrocyte OF and the activities of free radicals scavenging enzymes such as superoxide dismutase (SOD), catalase (CAT) and glutathione-S-transferase (GST). We observed a significant alteration in the mean erythrocyte fragility (MEF) at relatively higher NaCl concentration (0.67%) as compared to MEF at 0.55%, 0.58% and 0.56% of NaCl in control, vitamin C- and vitamin C + CF-treated groups, respectively. The activities of CAT and SOD were observed to be elevated by 74.35% and 85.56%, respectively, with significance level of p < or = 0.001, whereas GST activity got significantly (p < or = 0.001) diminished by 46.30% in the erythrocytes of CF-treated rats. Vitamin C treatment exhibited marked (p < or = 0.05) prevention of carbofuran-induced oxidative stress as well as erythrocyte osmotic fragility in the Wistar rats. These results suggest that CF treatment induces OF and OS in the erythrocytes of rats, and pretreatment with vitamin C can mitigate these toxic effects.


Subject(s)
Ascorbic Acid/pharmacology , Carbofuran/toxicity , Insecticides/toxicity , Animals , Glutathione Transferase/metabolism , Male , Osmotic Fragility/drug effects , Rats , Rats, Wistar , Superoxide Dismutase/metabolism
18.
Lasers Med Sci ; 24(5): 761-8, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19172343

ABSTRACT

The study defined the scientific evaluation of glycemic elements of extracts of Cynodon dactylon and Musa paradisiaca. A dose of 500 mg/kg body weight (bw) of C. dactylon produced maximum falls of 23.2% and 22.8% in blood glucose levels of normoglycemic rats during studies of fasting blood glucose and glucose tolerance, respectively, whereas the same dose of M. paradisiaca produced a rise of 34.9% and 18.4%. In diabetic rats during glucose tolerance tests, a fall of 27.8% and a rise of 17.5% were observed with the same dose of C. dactylon and M. paradisiaca, respectively. Laser-induced breakdown spectroscopy used for detection of glycemic elements present in both the extracts indicated that C. dactylon was rich in magnesium (Mg), whereas M. paradisiaca was rich in potassium (K) and sodium (Na), comparatively, suggesting thereby the defined roles of these elements in diabetes management.


Subject(s)
Cynodon , Diabetes Mellitus, Experimental/drug therapy , Musa , Phytotherapy , Animals , Blood Glucose/metabolism , Cynodon/chemistry , Diabetes Mellitus, Experimental/blood , Hypoglycemic Agents/chemistry , Hypoglycemic Agents/therapeutic use , Lasers, Solid-State , Male , Musa/chemistry , Plant Extracts/chemistry , Plant Extracts/therapeutic use , Rats , Rats, Wistar , Spectrum Analysis/methods
19.
J Environ Biol ; 30(3): 445-50, 2009 May.
Article in English | MEDLINE | ID: mdl-20120476

ABSTRACT

Impact of effluents discharged in Ganga through various sources on chemical composition, energy transformation rate and level of heavy metals was studied at Kanpur and Varanasi. The effluents were found to be nil in oxygen with acidic in oxygen with acidic to neutral pH (6.8-7.0) and having very high values of free CO2 (40-68 mg l(-1)), alkalinity (300.0-412.0 mg l(-1)), conductance (1082.0-1824.0 micromhos), total dissolved solids (542.0-912.0 mg l(-1)), hardness (228.0-330.0 mg l(-1)), chloride (42.0-60.0 mg l(-1)), organic matter (8.4-18.2 mg l(-1)) and BOD load (98.0-248.0 mg l(-1)). The heavy metals Cu, Cr, Cd, Pb and Zn were also quite high in the effluents (48.6-78.4, 54.0-84.6, 9.8-12.4, 72.4-84.0 and 148.6-284.0 microg l(-1) respectively). The discharged effluents induced severe reduction in oxygen (av. 0.82-3.4 mg l(-1)) and sharp increase in the level of free CO2 (av. 10.8-24.8 mg l(-1)), alkalinity (182.4-288.4 mg l(-1)), conductance (480.0- 628.0 mmhos), total dissolved solids (254.0-315.0 mg l(-1)), hardness (170.0-259.0 mg l(-1)), chloride (36.0-52.0 mg l(-1)), organic matter (4.8-6.8 mg l(-1)) and BOD load (36.4-58.4 mg l(-1)) at the discharge point (OF zones) from their comparatively much lower values before discharge (AOF zone). The rate of energy transformation and photosynthetic efficiency also reduced considerably at the discharge point (av. 1060-2101 calm(-2)day(-1) and 0.09-0.18%) from high values before discharged point (av. 4045-4733 calm(-2)day(-1) and 0.34-0.42%). The level of Cu, Cr, Cd, Pb and Zn also showed higher values at the discharged point (20.4-38.0, 22.4-54.8, 5.2-7.8, 30.8-72.0 and 64.8-120.8 microg l(-1) respectively). Considerable improvement was observed below the discharge (BOF zone). Comparison with earlier observation revealed that the magnitude of impact has reduced considerably after the regulation in the discharge both in he respect of chemical composition and energy transformation rates.


Subject(s)
Energy Transfer/drug effects , Metals, Heavy/analysis , Rivers/chemistry , Water Pollutants, Chemical/analysis , Environmental Monitoring , India , Photosynthesis/drug effects
20.
Indian J Clin Biochem ; 24(1): 88-93, 2009 Jan.
Article in English | MEDLINE | ID: mdl-23105813

ABSTRACT

The present study defines the systematic evaluation and the role of minerals in glycemic potential of aqueous extract of Withania coagulans fruits in order to develop an effective and safe alternative treatment for diabetes mellitus. Laser Induced Breakdown Spectroscopy was used for glycemic element detection. The study is based on the results of lowering in blood glucose levels of normal, sub, mild and severely diabetic rats assessed during fasting blood glucose, glucose tolerance test and post prandial glucose studies. The dose of 1000mg/ kg was identified as the most effective dose, which reduces the Fasting Blood Glucose level maximum by 33.2% at 4h in normal rats during fasting blood glucose studies. Glucose tolerance test studies of normal, sub and mild diabetic rats showed the maximum reduction of 15.7, 28.9 and 37.8% at 3h respectively. Long-term study in case of severely diabetic rats showed reduction of 52.9 and 54.1% in Fasting Blood Glucose and Post Prandial Glucose levels respectively after 30 days of treatment. The present study, besides confirming hypoglycemic and antidiabetic activities of aqueous extract of W. coagulans, helps in identifying the role of trace minerals like Mg & Ca responsible for antidiabetic potential of this potent indigenous shrub.

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