scholarly journals Investigation of ginger (Zingiber officinale) aqueous extract as an anti-diabetic in vitro

2021 ◽  
Vol 913 (1) ◽  
pp. 012108
Author(s):  
P Pakan ◽  
K Lidia ◽  
M Riwu

Abstract Diabetes mellitus is a condition of metabolic imbalance, indicated by a high level of blood glucose (hyperglycemia) resulting from a reduction of insulin secretion, action, or both. People with diabetes suffer from a lack or deficiency of insulin or insulin resistance. The metabolic imbalances are often not satisfactorily corrected using conventional medicines and even cause some side effects, which can be detrimental. Research on herbal medicines for the treatment of diabetes is urged by the need to reduce unwanted side effects common with conventional medicines/treatments used in glucose regulation. This study aims to investigate the antidiabetic effect of Ginger (Zingiber officinale) aqueous extract in improving the glucose uptake in mouse tissues in vitro. This study is a true experimental research design with a posttest-only control group design. There were three groups of mice in this study: the control group, which were only given plain water; the second group of mice with 5% aqueous ginger extract and the last group were given 25% aqueous ginger extract. All groups were given treatment for four consecutive weeks, then dissected their cardiac muscle, skeletal muscle, pancreas, and liver tissues to analyze the glucose uptake. The result showed that both the ginger aqueous extract groups were able to increase the glucose uptake of the mice. In conclusion, this research has shown that aqueous ginger extract may have improved the glucose uptake in most tissues of the mice in the groups. Therefore, ginger could have great potential as an alternative way in the treatment of diabetes type 2.

2018 ◽  
Vol 29 (1) ◽  
pp. 93-98 ◽  
Author(s):  
Tânia Mara da Silva ◽  
Virgílio Vilas Boas Fernandes Junior ◽  
Rosemary Soares de Santana ◽  
Renata Marques de Melo Marinho ◽  
Márcia Carneiro Valera ◽  
...  

Abstract The aim of this study was to evaluate in vitro the influence of 20% glycolic ginger extract on the bond strength of glass-fiber post cemented with etch-and-rinse or self-etching resin cement. Forty-eight bovine roots were standardized (17±0.5 mm) and randomly divided into two groups, according to irrigant used during biomechanical preparation: NaOCl: 1% sodium hypochlorite and GEN: 20% glycolic ginger extract. Root canal was prepared and randomly assigned to one of two subgroups (n=12), according to luting protocol: self-etching (RelyX U200) and etch-and-rinse (RelyX ARC). After 48 h, the roots were sectioned perpendicularly (4 in cervical third and 3 in middle third) and submitted to push-out bond strength test (50 kgf load cell, 1.0 mm/min). Failure mode was analyzed in SEM and stereomicroscopy. Data were analyzed by three-way ANOVA and Tukey tests (p<0.05). ANOVA revealed that there were no significant differences between U200 (2.01±0.17)B and ARC (1.93±0.12)B in GEN group, and at the cervical third for both irrigants, 2.69±0.16A and 2.54±0.17A, respectively. Middle third showed lower bond strength than cervical third, regardless the irrigant. Overall, the cervical third regardless the irrigant employed and the association between NaOCl and ARC, presented better adhesive performance.


2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Ma G. E. González-Yáñez ◽  
Catalina Rivas-Morales ◽  
María A. Oranday-Cárdenas ◽  
María J. Verde-Star ◽  
María A. Núñez-González ◽  
...  

There is a trend to use medicinal plants for primary medical care or as dietary supplements; however, the safety of many of these plants has not been studied. The objective of this work was to determine the toxic effect of the aqueous extract of Calea ternifolia (C. zacatechichi), known popularly as “dream herb” in vivo and in vitro in order to validate its safety. In vivo, the extract had moderate toxicity on A. salina. In vitro, the extract induced eryptosis of 73% at a concentration of 100 μg·mL−1 and it inhibited CYP3A by 99% at a concentration of 375 μg/mL. After administering 8.5 mg/kg of C. ternifolia to rats, we found a reduction in platelets and leukocytes and an increase in urea and the liver enzymes alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP). Histological analysis showed spongiform changes in the proximal tubules of renal tissue and a lymphoid infiltrate in liver tissue. This plant is used in the treatment of diabetes, and it is commercialized as a dietary supplement in several countries. Our results show renal and hepatic toxicity; therefore, more profound research on the toxicity of this plant is needed.


2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Mahamad Abba Talba ◽  
David Miaffo ◽  
Sylviane Laure Poualeu Kamani ◽  
Albert Kamanyi ◽  
Sylvie Léa Wansi

Cissus polyantha (Vitaceae) is a plant used in Cameroonian traditional medicine for the treatment of diabetes. The aims of this study were to evaluate the in vitro antioxidant and antidiabetic activities of the aqueous extract of Cissus polyantha leafy stems. The enzyme inhibitory activity was determined in vitro on α-amylase and α-glucosidase enzymes, followed by confirmative study in vivo on normal rats (oral starch and sucrose tolerance tests at doses of 111, 222, and 444 mg/kg). The ferric reducing antioxidant power and the 2,2-diphenyl-1-picrylhydrazyl (DPPH) antiradical activity of the extract were examined to evaluate the antioxidant potential of the extract. The total content of phenols, flavonoids, and tannins of the extract were also determined. The results showed an inhibitory effect of the extract on the α-amylase and α-glucosidase activities with IC50 values of 216.14 and 182.40 μg/mL, respectively. The extract at doses of 222 and 444 mg/kg induced a significant decrease in postprandial glycaemia during the starch and sucrose tolerance tests. A remarkable antiradical activity of the extract was obtained although lower than that of the standard product. The aqueous extract of leafy stems of Cissus polyantha has an interesting inhibitory activity on the α-amylase and α-glucosidase enzymes, as well as an antioxidant potential, thus validating its use in traditional medicine for the treatment of diabetes mellitus and its complications.


2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Lia de Barros Leite Albuquerque ◽  
Cháriston André Dal Belo ◽  
Marcio Galdino dos Santos ◽  
Patricia Santos Lopes ◽  
Marli Gerenutti ◽  
...  

Scientific assessment of harmful interactions of chemicals over the entire reproductive cycle are divided into three segments based on the period: from premating and mating to implantation (I), from implantation to major organogenesis (II), and late pregnancy and postnatal development (III). We combined the segments I and II to assessPlathymenia reticulataaqueous extract safety. In order to investigate reproductive toxicity (segment I), pregnant rats received orally 0.5 or 1.0 g/kg of extract, daily, during 18 days. These concentrations were determined by a preliminaryin vitroLD50 test in CHO-k1 cells. A control group received deionized water. The offspring was removed at the 19th day, by caesarean, and a teratology study (segment II) was carried out. The corpora lutea, implants, resorptions, live, and dead fetuses were then counted. Placenta and fetuses were weighted. External and visceral morphology were provided by the fixation of fetuses in Bouin, whereas skeletal analysis was carried out on the diaphanizated ones. The increase in the weights of placenta and fetuses was the only abnormality observed. Since there was no sign of alteration on reproduction parameters at our experimental conditions, we conclude thatP. reticulataaqueous extract is safe at 0.5 to 1.0 g/kg and is not considered teratogenic.


2020 ◽  
Vol 14 (4) ◽  
pp. 215-220
Author(s):  
Shahnaz Shekarforoush ◽  
◽  
Nahid Rezaee ◽  
Elaheh Farzanfar ◽  
◽  
...  

Background: Sulfites including Sodium Metabisulfite (SMB) are commonly used as food preservatives and pharmaceutical products. Despite their worldwide use, there is evidence suggesting their toxicity on human organs and tissues. The purpose of this study was to evaluate the effect of SMB with or without Zingiber officinale (ginger) extract on the rat ovary.  Methods: A total of 32 adult, female Wistar rats were divided into four groups of eight each. They consisted of, a) control group, b) ginger group (500 mg/kg/day), c) SMB group (260 mg/kg/day), and d) combined SMB and ginger group at identical doses. After 28 days, the rats were sacrificed and the ovarian tissue Malondialdehyde (MDA), as a marker of lipid peroxidation was measured. The volume and weight of the ovaries and the number of follicles at different stages were counted by stereological methods.  Results: The SMB treatment caused a significant decrease in the ovarian volume and the number of follicles with simultaneous increase in the number of degenerate follicles (P≤0.001) and MDA level (P≤0.01). Ginger treatment of the rats exposed to SMB significantly increased the number of follicles at various stages and partially reversed the ovarian tissue level of MDA, compared to that in the control group (P≤0.05). Conclusion: The SMB treatment induced structural changes in the rats’ ovaries and the concomitant treatment with ginger largely reversed the damages caused by SMB.


2021 ◽  
Vol 5 (8) ◽  
pp. 784-790
Author(s):  
Chandra Susanto ◽  
Member Reni Purba ◽  
Ridha Mahrani ◽  
Ramayani Efendi

Introduction: Campylobacter rectus and Provetella intermedia bacteria as the main etiology causes of periodontal disease. One of the locally synthesized antimicrobials that is widely used for the treatment of periodontitis is Chlorhexidine, however this drug has side effects when used continuously. To overcome this, an alternative periodontitis therapy with medicinal plants is needed. This study aims to determine the effectiveness of hydrogel Aloe vera antibacterial concentrations of 2.5%, 5%, 10% and 20% in the bacteria Campylobacter rectus and Provetella intermedia. Methods: This study was a laboratory experimental study with posttest only control group design in vitro. The samples were Campylobacter rectus and Provetella intermedia. The number of groups in this study was six. The sample size was determined by Federer's formula and obtained four replications for each group. Data collection by measuring the inhibition diameter using a slide caliper. Data were analyzed using oneway ANOVA and posthoc LSD. Results: The results showed that there was a difference in the diameter of the hydrogel Aloe vera inhibition with a concentration of 2.5%, 5%, 10%, 20% and a positive control for Campylobacter rectus and Provetella intermedia bacteria. Conclusion: This study concluded that there is an antibacterial effectiveness of hydrogel Aloe vera in concentrations of 2.5%, 5%, 10% and 20% on Campylobacter rectus and Provetella intermedia bacteria.  


Author(s):  
M. K. Jiyil ◽  
C. D. Luka ◽  
C. E. Mafuyai ◽  
N. Pamela

Background: Appreciable number of medicinal plants are used for the treatment of diabetes in Nigeria. Aim of the Study: The present study aimed to investigate the antidiabetic activity of Zingiber officinale extracts and its potential mechanisms in streptozotocin-induced diabetic rats. Study Duration: The period of the study was done on 30th September, 2018 at the Department of Biochemistry, Faculty of Basic Medical Sciences, university of Jos, Nigeria. Methodology: Albino rats of Wistar strain weighing between 130 g to 160 g were induced with single freshly prepared streptozotocin (55 mg/kg body weight). Diabetes was confirmed after forty eight hours in streptozotocin -induced rats showing fasting blood glucose levels > 10 mmol/l. The rats were randomly divided into four (4) experimental groups (n = 4). A (Control diabetic group fed with normal feed), Group B (Normal control fed with normal feed), Group Group C (Diabetic rats treated with 400 mg/Kg body weight extract of ginger and Group D, (Diabetic rats are treated with 400 mg/Kg body weight of metformin). After 8 days the animals were sacrificed and blood samples were collected for biochemical and hematological analysis. Changes in the animal body weights were also measured within the period. Results: From the results, it was observed that treatment of rats with extract of ginger compensates for the reduction of body weight, and caused an increase in the body weight of the treated rats (+11.5%) in contrast to 24.8% reduction observed in diabetic control. In the same order, serum glucose significantly decreased (p<0.05) after the 8-day treatment compared to diabetic control. The extent of reversal of hyperglycemia in the ginger extract treated animals compared well with the metformin treated group. The results, therefore, showed that ginger extract has a significant (p<0.05) hypoglycemic effect in diabetic rats and moreover, elevations in the measured biochemical parameters were significantly (p<0.05) attenuated in rats treated with ginger extract. Conclusion: Zingiber officinale extracts has a significant effect on some biochemical parameters and hematological assays. These provide scientific evidence to confirm the traditional use of Z. officinale in the treatment of diabetes mellitus.


Molecules ◽  
2018 ◽  
Vol 23 (7) ◽  
pp. 1777 ◽  
Author(s):  
Jaeyong Kim ◽  
Huwon Kang ◽  
Hakjoon Choi ◽  
Ara Jo ◽  
Dooi-Ri Oh ◽  
...  

The leaves of Perilla frutescens var. acuta (PFA) are commonly used as a traditional medicine in Korea, Japan, and China. We previously showed that PFA attenuates eye fatigue by improving visual accommodation through a clinical study. However, detailed mechanisms and chemical compounds have not been studied. In this study, we analyzed the active compounds in an aqueous extract of PFA involved in ciliary muscle relaxation in vitro and in vivo. NMR and MS analyses showed that the PFA extract contained mainly luteolin-7-O-diglucuronide and apigenin-7-O-diglucuronide. The composition after freeze-drying and spray-drying was similar. Freeze-dried PFA (50 µg/mL, 100 µg/mL, and 200 µg/mL) increased nitric oxide and cGMP levels in ciliary muscle cells isolated from the eyes of rats. [Ca2+]i decreased in a dose-dependent manner. Furthermore, Sprague-Dawley rats treated with freeze-dried PFA (200 mg/kg, orally) showed significantly increased cGMP levels compared with the control group and irradiated with white light. Our results suggest that PFA extract has the potential to reduce eye fatigue by relaxing ciliary muscles.


Author(s):  
Ayoub Amssayef ◽  
Mohammed Ajebli ◽  
Mohamed Eddouks

Aims: The aim of the study was to investigate the antihyperglycemic activity of Matricaria pubescens. Background: Matricaria pubescens (Def). Shultz (Asteraceae) is commonly used traditionally for the treatment of diabetes in Morocco. Objective: This present investigation aimed to assess the antihyperglycemic and antioxidant effects of the aqueous extract of aerial part of Matricaria pubescens (M. pubescens). Methods: The effect of a single and repeated oral administration of the aqueous extract of aerial part of M. pubescens (AEAPMP) at a dose of 40 mg/kg on glucose was examined in normal and streptozotocin-induced diabetic rats. Additionally, histopathological examination of pancreas and liver was carried out according to the Hematoxylin-Eosin method. The antioxidant activity was performed using the DPPH assay. Results: The results showed that the aqueous extract of M. pubescens (AEAPMP) exhibited a significant lowering activity on blood glucose levels in STZ-induced diabetic rats. In addition, AEAPMP ameliorated the histopathological tissues of liver and pancreas. Furthermore, a potential in vitro antioxidant of AEAPMP has been shown. Conclusion: In conclusion, this study demonstrates that M. pubescens possesses a beneficial effect against hyperglycemia associated with diabetes.


2019 ◽  
pp. 15-22
Author(s):  
Khoa Bao Chau Thai ◽  
Huu Tien Nguyen ◽  
Huu Dung Tran

Introduction: Nowadays, resistant starches are interested as a supplement food by effecting on the limit of postprandial blood glucose increase and supporting for the diabetes treatment. Recently, we have semisynthesized the acetylated wheat starch (AWS) oriented for supporting the treatment of diabetes mellitus, which is the RS4 formed by chemical structure modification. AWS has been proved itself to show strong resistance to amylase activity in-vitro as well as to be safety in-vivo. Materials and Methods: In this study, we continued to evaluate AWS’s ability to limit postprandial blood glucose increase and determined shortchain fatty acids (SCFAs) metabolized from AWS in the gastrointestinal tract of healthy mice by HPLC. Results: the mice fed AWS exhibited a very limited increase in blood glucose levels and remained stable for 2 hours after meals comparing with the control group (mice fed natural wheat starch) (NWS). Simultaneously, the content of SCFAs produced in the caecum of the mice fed AWS was significantly higher than mice fed NWS, especially with acetic and propionic acids by 28% and 26%, respectively. Conclusion: AWS has been shown to limit postprandial hyperglycemia in mice effectively through the resistance to amylase hydrolysis in the small intestine. When going into the caecum, it is fermented to form SCFAs that provide a part of the energy for the body’s activities and to avoid rotten fermentation causing digestive disorders, which are inherent restrictions of normal high cellulose and fiber food. Key words: acetylated wheat starch, natural wheat starch, SCFA, blood glucose


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