244 results match your criteria: "Entomology Research Institute[Affiliation]"

Epoxy clerodane diterpene inhibits MCF-7 human breast cancer cell growth by regulating the expression of the functional apoptotic genes Cdkn2A, Rb1, mdm2 and p53.

Biomed Pharmacother

March 2017

Cancer Molecular Biology Research Lab, Department of Food Sceince and Nutrition, College of Food Science and Agriculture, King Saud University, Riyadh - 11451, Saudi Arabia. Electronic address:

Systematic analyses of plants that are used in traditional medicine may lead to the discovery of novel cytotoxic secondary metabolites. Diterpene possesses multiple bioactivities; here, epoxy clerodane diterpene (ECD) was isolated from Tinospora cordifolia (Willd.) stem and shown potential antiproliferative effect in MCF-7 human breast cancer cells.

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Mosquitoes pose a major threat to human health as they spread many deadly diseases like malaria, dengue, chikungunya, filariasis, Japanese encephalitis and Zika. Identification and use of novel molecular tools are essential to combat the spread of vector borne diseases. Genome editing tools have been used for the precise alterations of the gene of interest for producing the desirable trait in mosquitoes.

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The plant PHosphate Transporter 1 (PHT1) family of membrane proteins belongs to the major facilitator super family and plays a major role in the acquisition of inorganic phosphate (Pi) from the soil and its transport within the plant. These transporters have been well characterized for expression patterns, localization, and in some cases affinity. Furthermore, the crystal structure of a high-affinity eukaryotic phosphate transporter from the fungus Piriformospora indica (PiPT) has revealed important information on the residues involved in Pi transport.

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Different concentrations of standardized ethanolic extract from the basidiocarps of Tricholoma giganteum Massee (TgEtOH) were screened for hepatoprotective effects in an animal model of rats with nonalcoholic fatty liver disease (NAFLD) fed a high-fat and high-fructose diet. After 4 weeks of treatment with TgEtOH, the relative liver weights, serum lipid concentrations, and biochemical profiles were found to be normal in treated animals compared with those given a standard drug. The macroscopic and histopathological studies clearly indicated that 200 mg/kg of ethanolic extract was effective in ameliorating the abnormalities of NAFLD.

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New antimicrobial anthraquinone 6,6-bis (1,5,7-trihydroxy-3-hydroxymethylanthraquinone) isolated from sp. isolate ERI-26.

Saudi J Biol Sci

November 2016

Division of Microbiology, Entomology Research Institute, Loyola College, Chennai 600034, India; Visiting Professor Programme, Deanship of Scientific Research, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.

The present report is about sp. isolate ERI-26 isolated from the soil sample of Nilgiri forest, Western Ghats. The methanol extract of ERI-26 showed good antimicrobial activity against tested microbes.

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Toxic effect of Atalantia monophylla essential oil on Callosobruchus maculatus and Sitophilus oryzae.

Environ Sci Pollut Res Int

January 2017

Department of Botany and Microbiology, Addiriya Chair for Environmental Studies, College of Science King Saud University, P.O. Box. 2455, Riyadh, 11451, Kingdom of Saudi Arabia.

The hydrodistillated essential oil of Atalantia monophylla was subjected to GC-MS. Forty compounds were presented in the essential oil. Eugenol (19.

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Finger millet is one of the small millets with high nutritive value. This crop is vulnerable to blast disease caused by Pyricularia grisea, which occurs annually during rainy and winter seasons. Leaf blast occurs at early crop stage and is highly damaging.

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Insert, remove or replace: A highly advanced genome editing system using CRISPR/Cas9.

Biochim Biophys Acta

September 2016

Division of Plant Biotechnology, Entomology Research Institute, Loyola College, Chennai, India; International Scientific Partnership Program, Deanship of Scientific Research, College of Science, King Saud University, Riyadh, Saudi Arabia. Electronic address:

The clustered, regularly interspaced, short palindromic repeat (CRISPR) and CRISPR associated protein 9 (Cas9) system discovered as an adaptive immunity mechanism in prokaryotes has emerged as the most popular tool for the precise alterations of the genomes of diverse species. CRISPR/Cas9 system has taken the world of genome editing by storm in recent years. Its popularity as a tool for altering genomes is due to the ability of Cas9 protein to cause double-stranded breaks in DNA after binding with short guide RNA molecules, which can be produced with dramatically less effort and expense than required for production of transcription-activator like effector nucleases (TALEN) and zinc-finger nucleases (ZFN).

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Antioxidant, antilipidemic and antidiabetic effects of ficusin with their effects on GLUT4 translocation and PPARγ expression in type 2 diabetic rats.

Chem Biol Interact

August 2016

Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Chennai 600 034, India; Division of Bioinformatics, Entomology Research Institute, Loyola College, Chennai 600 034, India; Visiting Professor Programme, Deanship of Scientific Research, College of Science, King Saudi University, Saudi Arabia.

In this study, the antioxidant, antilipidemic and antidiabetic effects of ficusin isolated from Ficus carica leaves and their effects on GLUT4 translocation and PPARγ expression were evaluated in HFD-STZ induced type 2 diabetic rats. Ficusin (20 and 40 mg/kg b. wt.

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Development of antiviral gene therapy for Monodon baculovirus using dsRNA loaded chitosan-dextran sulfate nanocapsule delivery system in Penaeus monodon post-larvae.

Antiviral Res

July 2016

Aquatic Animal Health and Environment Division, Central Institute of Brackishwater Aquaculture, Chennai 600028, India; Entomology Research Institute, Loyola College, Nungambakkam, Chennai 600 034, India. Electronic address:

In the present study, a suitable carrier system was developed for the delivery of dsRNA into Penaeus monodon (P. monodon) post larvae to silence the Monodon baculovirus (MBV) structural gene of p74. The carrier system was developed by layer by layer adsorption of oppositely charged chitosan-dextran sulfate, on charged silica nanoparticles.

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Aims: This paper investigates the hypoglycemic activity of two derivatives of embelin (1) viz. 6-bromoembelin (2) and vilangin (3), in high-fat diet - STZ induced diabetic rats.

Main Methods: The effects of 6-bromoembelin (2) and vilangin (3) on insulin resistance, β-cell dysfunction and glucose transport in high-fat diet (HFD) fed-streptozotocin (STZ) (40mg/kg) induced type 2 diabetic rats were evaluated.

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Quantitative ethnomedicinal survey of medicinal plants given for cardiometabolic diseases by the non-institutionally trained siddha practitioners of Tiruvallur district, Tamil Nadu, India.

J Ethnopharmacol

June 2016

Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Chennai, Tamil Nadu 600034, India; Visiting Professor Programme, Deanship of Scientific Research, College of Science, King Saud University, Riyadh 11451, Saudi Arabia. Electronic address:

Ethnobotanical Relevance: The burden of cardiometabolic diseases such as dyslipidemia, hyperglycemia, hypertension, visceral obesity and atherosclerotic cardiovascular diseases and the use of traditional medicine for the management of such diseases are high in India; hence there is a need to document and analyze such therapies.

Aim Of The Study: This study documented and analyzed the medicinal plants prescribed for cardiometabolic diseases by the non-institutionally trained siddha practitioners of Tiruvallur district of Tamil Nadu, India.

Methodology: The field survey was conducted between December 2014 to November 2015.

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Ecbolin A and ecbolin B were isolated from ethyl acetate extract of (Forsk.) Alston root and evaluated for larvicidal and growth disturbance activities against L. (Diptera: Culicidae).

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The mosquitocidal activities of different fractions and a compound alizarin from the methanol extract of Rubia cordifolia roots were evaluated on larvae and pupae of Culex quinquefasciatus Say and Aedes aegypti (L.) (Diptera: Culicidae). Larvae and pupae were exposed to concentrations of 2.

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The present study investigated the anticancer activity of 2,3-dihydroxy-9,10-anthraquinone against different cancer cells such as MCF-7, COLO320, HepG-2, Skov-3, MOLM-14, NB-4, CEM, K562, Jurkat, HL-60, U937, IM-9 and Vero. 2,3-dihydroxy-9,10-anthraquinone showed good antiproliferative activity against COLO320 cells when compared to other tested cells. The cytotoxicity results showed 79.

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Assessment of genetic diversity, population structure and relationships in Indian and non-Indian genotypes of finger millet (Eleusine coracana (L.) Gaertn) using genomic SSR markers.

Springerplus

February 2016

Division of Plant Biotechnology, Entomology Research Institute, Loyola College, Chennai, 600 034 India ; Visiting Professor Program, Deanship of Scientific Research, College of Science, King Saud University, P.O.Box. 2455, Riyadh, 11451 Kingdom of Saudi Arabia.

We evaluated the genetic variation and population structure in Indian and non-Indian genotypes of finger millet using 87 genomic SSR primers. The 128 finger millet genotypes were collected and genomic DNA was isolated. Eighty-seven genomic SSR primers with 60-70 % GC contents were used for PCR analysis of 128 finger millet genotypes.

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Delivery of chitosan/dsRNA nanoparticles for silencing of wing development vestigial (vg) gene in Aedes aegypti mosquitoes.

Int J Biol Macromol

May 2016

Entomology Research Institute, Loyola College, Chennai 600 034, India; Visiting Professor Program, Deanship of Scientific Research, College of Science, King Saud University, Riyadh, Saudi Arabia. Electronic address:

RNA interference (RNAi) has been used as a gene silencing strategy by the introduction of long double stranded RNA (dsRNA) for the control of pest insects. The aim of the present study was to examine whether the expression of vg gene which is responsible for wing development, can be repressed by chitosan/dsRNA based nanoparticles in Aedes aegypti. The vestigial gene (vg) was amplified from adult mosquito and cloned in pLitmus28i vector.

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Outer membrane protein C (OmpC) of Escherichia coli induces neurodegeneration in mice by acting as an amyloid.

Biotechnol Lett

April 2016

Division of Neurophysiology, Entomology Research Institute, Loyola College, Chennai, Tamil Nadu, 600034, India.

Objectives: Involvement of the outer membrane protein C (OmpC) of Escherichia coli in neurodegeneration was investigated using a mouse model.

Results: OmpC formed protease-resistant fibres that exhibited the diagnostic features of an amyloid. The spectral shift in the Congo Red and the thioflavin T assays produced features similar to neurotoxic peptides.

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Effect of active sub-fraction of Ichnocarpus frutescens (L.) R.Br. in the management of obesity.

J Ethnopharmacol

January 2016

Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Chennai, Tamil Nadu 600034, India; Visiting Professor Programme, Deanship of Scientific Research, College of Science, King Saud University, Riyadh 11451, Saudi Arabia. Electronic address:

Aim Of The Study: Ichnocarpus frutescens (L.) R.Br.

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Genetic variation among 45 genotypes of sorghum (Sorghum bicolor L.) representing seven subpopulations was assessed using three single primer amplification reaction (SPAR) methods viz., inter-simple sequence repeat (ISSR), random amplified polymorphic DNA (RAPD) and directed amplification of minisatellite-region DNA (DAMD).

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The present study was undertaken to explore gastroprotective effects of trigonelline (TRG) and to determine the potential mechanisms involved in this action. In order to evaluate the gastroprotective efficiency of TRG, an indomethacin-induced ulcer model has been applied. Antioxidants, cytokines, adhesion markers and apoptosis levels have been analyzed for the biochemical mechanism involved in TRG activity.

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An investigation was performed to study the influence of ultrasonic aided bacterial disintegration on the aerobic degradability of sludge. In first phase of the study, effective floc disruption was achieved at an ultrasonic specific energy input of 2.45kJ/kg TS with 44.

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MicroRNA in prostate cancer.

Clin Chim Acta

December 2015

Molecular Biology Unit, Entomology Research Institute, Loyola College, Nungambakkam, Chennai 600 034, India.

In the United States of America male prostate cancer (PCa) is the most dominant malignancy and the second highest cause of cancer-related mortality risk compared to lung and colon cancers. MicroRNAs (miRNAs) are a class of endogenously expressed small, non-coding, single-stranded RNA which function as regulators of gene expression. They influence various physiological and pathophysiological processes.

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The present study was undertaken to investigate the anticancer activity of methyl caffeate isolated from Solanum torvum Swartz. fruit and to explore the molecular mechanisms of action in MCF-7 cells. Cytotoxic properties of hexane, ethyl acetate and methanol extracts were carried out against MCF-7 cells using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay.

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