scholarly journals Moringa water extract promising additive to prolong the activity of baculovirus under field-sunlight conditions in Egypt

2020 ◽  
Vol 80 (4) ◽  
pp. 891-896
Author(s):  
A. El-Helaly
Keyword(s):  
Green Tea ◽  
Spodoptera Littoralis ◽  
Water Extract ◽  
Field Application ◽  
Protective Agent ◽  
Protective Material ◽  
Original Activity ◽  
Virus Activity ◽  
Plant Foliage ◽  
Test Insect

Abstract Baculoviruses are considered as effective bio pesticides except of being not active under sunlight conditions. The aim of this study is to evaluate the capability of moringa extract to prolong virus activity under Egyptian field conditions especially that Moringa proved to be strong protective material under previous investigation under laboratory conditions the addition of moringa filters were tested on tomato plant foliage. Results are based on leaf bioassay using Spodoptera littoralis test insect and its nuclepolyhedrovirus (SpliNPV) as standard materials. The Original Activity Remaining (OAR) and Lethal Infectivity Time to 50% (LIT50) were estimated after exposure to natural sunlight. cacao and green tea were tested as comparative materials, which proved to be effective as virus protective agent in earlier investigations. The results showed that moringa additive at 10% sustained 50% of virus activity for 193.53 hours and 62.05 and 23.023 hours post application for cacao and green tea; respectively. While virus alone treatment lasts for only 17.551 hours. Moringa generally available, relatively cheap; it also has been tested and proved to be non-toxic, safe, and friendly to the environment. The obtained results showed the activity of moringa water extract in prolonging the virus activity under field application.

scholarly journals The Protective Effect of Oral Application of Corni Fructus on the Disorders of the Cornea, Conjunctiva, Lacrimal Gland and Retina by Topical Particulate Matter 2.5

Nutrients ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 2986
Author(s):  
Hyesook Lee ◽  
Min Yeong Kim ◽  
Seon Yeong Ji ◽  
Da Hye Kim ◽  
So Young Kim ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Oral Administration ◽  
Lacrimal Gland ◽  
Water Extract ◽  
Cell Loss ◽  
Inflammatory Factors ◽  
Inner Plexiform Layer ◽  
Protective Agent ◽  
Corni Fructus ◽  
Particulate Matter 2.5

Particulate matter 2.5 (PM2.5) may aggravate dry eye disease (DED). Corni Fructus (CF), which is fruit of Cornus officinalis Sieb. et Zucc., has been reported to have various beneficial pharmacological effects, whereas the effect of CF on the eye is still unknown. Therefore, in this study, we investigated the effect of oral administration of water extract of CF (CFW) on the eye, hematology, and biochemistry in a DED model induced by topical exposure to PM2.5. Furthermore, the efficacy of CFW compared with cyclosporine (CsA), an anti-inflammatory agent, and lutein, the posterior eye-protective agent. Sprague-Dawley rats were topically administered 5 mg/mL PM2.5 in both eyes four times daily for 14 days. During the same period, CFW (200 mg/kg and 400 mg/kg) and lutein (4.1 mg/kg) were orally administered once a day. All eyes of rats in the 0.05% cyclosporine A (CsA)-treated group were topically exposed to 20 μL of CsA, twice daily for 14 days. Oral administration of CFW attenuated the PM2.5-induced reduction of tear secretion and corneal epithelial damage. In addition, CFW protected against goblet cell loss in conjunctiva and overexpression of inflammatory factors in the lacrimal gland following topical exposure to PM2.5. Furthermore, CFW markedly prevented PM2.5-induced ganglion cell loss and recovered the thickness of inner plexiform layer. Meanwhile, CFW treatment decreased the levels of total cholesterol and low-density lipoprotein cholesterol in serum induced by PM2.5. Importantly, the efficacy of CFW was superior or similar to that of CsA and lutein. Taken together, oral administration of CFW may have protective effects against PM2.5-induced DED symptoms via stabilization of the tear film and suppression of inflammation. Furthermore, CFW may in part contribute to improving retinal function and lipid metabolism disorder.

scholarly journals Phytochemicals and Quality of Green and Black Teas from Different Clones of Tea Plant

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Yadav KC ◽  
Ashok Parajuli ◽  
Bishnu Bahadur Khatri ◽  
Lila Devi Shiwakoti
Keyword(s):  
Antioxidant Activity ◽  
Green Tea ◽  
Antioxidant Properties ◽  
Water Extract ◽  
Black Tea ◽  
Tea Plant ◽  
Total Quality ◽  
Dry Extract ◽  
Caffeine Content ◽  
Tea Plants

Tea is a popular drink with refreshing and functional properties. Bud, 1st leaf, and 2nd leaf of five varieties of tea clones (Gumti Takda-78, Ambari, Chiniya, and Tinali, which are popular in tea plantation area of Nepal) were collected and used for preparing green and orthodox black tea to study antioxidant activity, phytochemicals profile, chemical content, and sensory parameters. One or two leaves were hand-plucked from each bush to get a sample of about 100 leaves and processed for green and orthodox black tea for different clones of tea plants. Phytochemicals, antioxidant activity, and caffeine content were found higher in bud followed by 1st leaf and 2nd leaf for all clones of tea plants. Both types of tea (green and black) from Gumti were significantly (p<0.05) higher having tannin content, flavonoid content, total polyphenol content, caffeine content, and IC50 value of 49.15 and 36.23 (mg GAE/g dry extract), 358.9 and 350.4 (mg QE/g dry extract), 590.5 and 570 (mg GAE/g dry extract), 2.85 and 2.94%, and 45.15 & 51.88 μg/mL, respectively. Green and orthodox tea from Takda-78 was found higher in caffeine content and the least in Tinali for both types of tea. Moisture, water extract, total ash, acid-insoluble ash, and crude fiber content in tea (green and black) from Gumti were found to be 5.4% & 5.37%, 65.89% & 71.46%, 5.524% & 6.52%, 0.46% & 0.57%, and 7.96% & 10.27%, respectively. The ratio of theaflavin and thearubigin (TF : TR) was found 1 : 8.61, 1 : 9.36, 1 : 9.70, 1 : 12.87, and 1 : 6.36 in Takda-78, Ambari, Gumti, Chiniya, and Tinali respectively. The total quality score in green tea (85.13%) and black tea (85.78%) from Gumti was significantly higher than others. Phytochemicals and antioxidant properties of green tea were significantly (p<0.05) higher than those of orthodox black tea for all clones of tea plant. This study suggests Gumti variety to be used in green and orthodox black tea processing for higher phytochemical, chemical, sensory quality, and antioxidant activity.

Potential Synergism of Green Tea and Aspirin as a Possible Cause of Bleeding in a Diabetic

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 4504-4504
Author(s):  
Roger C Munro ◽  
Lisa J Wakeman ◽  
Saad Al-Ismail
Keyword(s):  
Metabolic Syndrome ◽  
Platelet Aggregation ◽  
Green Tea ◽  
Causal Effect ◽  
Daily Intake ◽  
Water Extract ◽  
Serum Triglyceride ◽  
Hot Water ◽  
Diabetic Patients ◽  
Dependent Manner

Abstract A 58 year old lady with Metabolic Syndrome of 10 years duration presented with post-menopausal PV bleeding, haematuria, occasional epistaxis and ecchymoses. Prescribed medication which had remained unchanged for the preceding two years included daily doses (mgms) of Aspirin (150), Atenelol (50), Metformin (500 × 3), Bendroflumethiazide (2.5), Losartan (50) and Simvastatin (20). Intravenous urogram, cystoscopy, cytological examination of urine sediment, hysteroscopy, a cervical scan and endometrial biopsies showed neither evidence of overt pathology nor any physiological indication for the cause of haematuria or PV bleeding. Tests for urinary infection were negative. Apart from the raised blood glucose (9.1: NR 3.3 – 6.0 mmol/L), the biochemistry profile including liver enzymes, coagulation profile and blood count were normal (Platelets = 265 × 109/L). Bleeding episodes were observed after commencement of a daily intake of 7–8 cups of green tea for a period of six months. Green tea intake was self-instigated in response to reported amelioration of risk factors associated with Metabolic Syndrome (reduction in LDL cholesterol and serum triglyceride levels; elevation of protective HDL; potent antioxidant activity; ACE inhibition and promotion of glucose metabolism). Hot water extract of green tea specifically inhibits platelet adhesion and lowers sub-maximal platelet aggregation and prolongs the lag time in a dose-dependent manner. Previous fractionation studies of these hot water extracts, has revealed that the tea catechins (tannins) actively inhibit thromboxane A2 production and that ester-type catechins are more effective than free-type catechins. One of the ester-type catechins, epigallocatechin gallate (EGCG), suppresses thrombin and collagen-induced platelet aggregation completely at a concentration of 0.2 mg/ml. EGCG also inhibits aggregation by a mechanism which differs from that of aspirin by inhibiting platelet activating factor (PAF). The IC50 values of EGCG and aspirin indicate that their potencies are comparable. Bleeding symptoms ceased two weeks after the patient stopped drinking green tea. Our assumption of the causal effect of green tea on anomalous bleeding in this patient needs to be confirmed by structured platelet function tests in both aspirinised and non-aspirinised patients. Since inhibition of cyclo-oxygenase is an additional anti-thrombotic property of aspirin which differs from that of green tea, diabetic patients taking prophylactic low-dose aspirin should continue to do so and potentially beneficial ingestion of green tea should not be considered without consultation with an appropriate health professional in view of its synergistic potential on the effect of aspirin and the associated haemorrhagic risks.

DNA degradation by water extract of green tea in the presence of copper ions: implications for anticancer properties

2003 ◽  
Vol 17 (4) ◽  
pp. 358-363 ◽  
Author(s):  
Arshi Malik ◽  
Sonish Azam ◽  
Naghma Hadi ◽  
S. M. Hadi
Keyword(s):  
Green Tea ◽  
Copper Ions ◽  
Water Extract ◽  
Dna Degradation ◽  
Anticancer Properties

scholarly journals Metabolomic Profile and Antioxidant/Anti-Inflammatory Effects of Industrial Hemp Water Extract in Fibroblasts, Keratinocytes and Isolated Mouse Skin Specimens

Antioxidants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 44
Author(s):  
Viviana di Giacomo ◽  
Lucia Recinella ◽  
Annalisa Chiavaroli ◽  
Giustino Orlando ◽  
Amelia Cataldi ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Mouse Skin ◽  
Water Extract ◽  
Phytochemical Analysis ◽  
Protective Agent ◽  
Protective Effects ◽  
In Silico Docking ◽  
Cannabidiolic Acid ◽  
Anti Inflammatory ◽  
Industrial Hemp

Industrial hemp is a multiuse crop whose phytocomplex includes terpenophenolics and flavonoids. In the present study, the phenolic and terpenophenolic compounds were assayed in the water extract of the hemp variety Futura 75. Protective effects were also investigated in human fibroblast and keratinocytes and isolate mouse skin specimens, which were exposed to hydrogen peroxide and/or to the extract (1–500 µg/mL). The results of phytochemical analysis suggested the cannabidiol, cannabidiolic acid and rutin as the prominent phytocompounds. In the in vitro system represented by human keratinocytes and fibroblasts, the hemp extract was found to be able to protect cells from cytotoxicity and apoptosis induced by oxidative stress. Moreover, modulatory effects on IL-6, a key mediator in skin proliferation, were found. In isolated rat skin, the extract reduced hydrogen peroxide-induced l-dopa turnover, prostaglandin-E2 production and the ratio kynurenine/tryptpophan, thus corroborating anti-inflammatory/antioxidant effects. The in silico docking studies also highlighted the putative interactions between cannabidiol, cannabidiolic acid and rutin with tyrosinase and indoleamine-2,3-dioxygenase, involved in l-dopa turnover and tryptophan conversion in kynurenine, respectively. In conclusion, the present findings showed the efficacy of hemp water extract as a skin protective agent. This could be partly related to the extract content in cannabidiol, cannabidiolic acid and rutin.

Toxicity of Fipronil and Emamectin Benzoate and Their Mixtures Against Cotton Leafworm, Spodoptera littoralis (Lepidoptera: Noctuidae) With Relation to GABA Content

2019 ◽  
Author(s):  
Mohamed A Kandil ◽  
Eman A Fouad ◽  
Dalia E El Hefny ◽  
Yasmin E Abdel-Mobdy
Keyword(s):  
Spodoptera Littoralis ◽  
Antagonistic Effect ◽  
Field Application ◽  
Effective Control ◽  
Emamectin Benzoate ◽  
Cotton Leafworm ◽  
Gaba Transporters ◽  
Potentiation Effect ◽  
Gaba Content ◽  
Lepidoptera Noctuidae

Abstract Fipronil and emamectin benzoate (EMB) are effective insecticides for controlling cotton leafworm, Spodoptera littoralis. Fipronil works by blocking gamma-amino butyric acid (GABA) gated chloride. In contrast, EMB is activating GABA transporters. The objectives of our study were to assess relative toxicity of the technical fipronil and EMB alone and in mixture against S. littoralis. In addition, the GABA content was simultaneously determined using HPLC. Technical fipronil and EMB and their mixtures were applied topically to the fourth-instar larvae, and their LD50 values were estimated after 48 h. Results demonstrated that the LD50 for EMB applied alone was 0.751 ng/larva which was much less than for fipronil 7.271 ng/larva. Each of the two insecticides alone showed a significant decrease in GABA content at LD10, LD25, and LD50 doses, while their mixtures induced GABA levels. The highest potentiation was observed when both insecticides were in a mixture at the ratio of LD10:LD10 which was associated with higher increase in GABA levels. Moreover, the weight of the alive larvae was less than that was in the untreated control. However, all mixtures exhibited potentiation effect, except for the mixture of fipronil at LD50 with EMB at LD10, LD25, and LD50 that had antagonistic effect correlated with the lowest decrease in GABA level. Results suggested that lower doses of both insecticides in a binary mixture had potentiation effect against S. littoralis. This mixture could be used in combination as field application for successful and effective control of S. littoralis and would also help in managing insecticide resistance.

scholarly journals A novel aqueous extract from rice fermented with Aspergillus oryzae and Saccharomyces cerevisiae possesses an anti-influenza A virus activity

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0244885
Author(s):  
Masaki Shoji ◽  
Minami Sugimoto ◽  
Kosuke Matsuno ◽  
Yoko Fujita ◽  
Tomohiro Mii ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Influenza A Virus ◽  
Aspergillus Oryzae ◽  
Aqueous Extract ◽  
Influenza A ◽  
Mdck Cells ◽  
Water Extract ◽  
Etoac Extract ◽  
Virus Activity ◽  
Influenza A H1n1

Human influenza virus infections occur annually worldwide and are associated with high morbidity and mortality. Hence, development of novel anti-influenza drugs is urgently required. Rice Power® extract developed by the Yushin Brewer Co. Ltd. is a novel aqueous extract of rice obtained via saccharization and fermentation with various microorganisms, such as Aspergillus oryzae, yeast [such as Saccharomyces cerevisiae], and lactic acid bacteria, possessing various biological and pharmacological properties. In our previous experimental screening with thirty types of Rice Power® extracts, we observed that the 30th Rice Power® (Y30) extract promoted the survival of influenza A virus-infected Madin-Darby canine kidney (MDCK) cells. Therefore, to identify compounds for the development of novel anti-influenza drugs, we aimed to investigate whether the Y30 extract exhibits anti-influenza A virus activity. In the present study, we demonstrated that the Y30 extract strongly promoted the survival of influenza A H1N1 Puerto Rico 8/34 (A/PR/8/34), California 7/09, or H3N2 Aichi 2/68 (A/Aichi/2/68) viruses-infected MDCK cells and inhibited A/PR/8/34 or A/Aichi/2/68 viruses infection and growth in the co-treatment and pre-infection experiments. The pre-treatment of Y30 extract on MDCK cells did not induce anti-influenza activity in the cell. The Y30 extract did not significantly affect influenza A virus hemagglutination, and neuraminidase and RNA-dependent RNA polymerase activities. Interestingly, the electron microscopy experiment revealed that the Y30 extract disrupts the integrity of influenza A virus particles by permeabilizing the viral membrane envelope, suggesting that Y30 extract has a direct virucidal effect against influenza A virus. Furthermore, we observed that compared to the ethyl acetate (EtOAc) extract, the water extract of Y30 extract considerably promoted the survival of cells infected with A/PR/8/34 virus. These results indicated that more anti-influenza components were present in the water extract of Y30 extract than in the EtOAc extract. Our results highlight the potential of a rice extract fermented with A. oryzae and S. cerevisiae as an anti-influenza medicine and a drug source for the development of anti-influenza compounds.

Sign in / Sign up

Export Citation Format

Share Document