In vitro antibacterial activity of Psidium guajava Linn. leaf extract on clinical isolates of multidrug resistant Staphylococcus aureus.

Abstract:

:In the present study, antibacterial activity of aqueous and organic extracts of Psidium guajava leaves was evaluated against multidrug resistant (MDR) clinical isolates of Staphylococcus aureus strains collected from hospitals in northern (Malabar region) Kerala. The strains which exhibited resistance against all the antibiotics tested was selected for antibacterial assays. Minimum inhibitory concentration (MIC) for methanolic and aqueous extracts was found to be 625 ug/ml and 7.5 mg/ml, respectively. Minimum bactericidal concentration (MBC) recorded for methanolic and aqueous extracts was 1.25 and 12.5 mg/ml, respectively. Methanolic extract at minimum bactericidal concentration inhibited the growth of MDR strain by 80%. Time-kill assay revealed that methanolic extract (4 mg/ml) killed MDR bacteria within 10 hr. Total polypeptide profiling of bacterial cultures by SDS-PAGE indicated a high degree of protein degradative activity of the extract. Finally, a human RBC based haemolytic assay showed absence of haemolysis even at concentrations higher than that of MBC, advocating thereby its safety in therapeutic use.

journal_name

Indian J Exp Biol

authors

Anas K,Jayasree PR,Vijayakumar T,Manish Kumar PR

subject

Has Abstract

pub_date

2008-01-01 00:00:00

pages

41-6

issue

1

eissn

0019-5189

issn

0975-1009

journal_volume

46

pub_type

杂志文章
  • Immune response induced by Vero cell culture adapted buffalo pox virus in rabbits and buffaloes.

    abstract::The Vero cell culture adapted buffalo pox virus was found to be completely attenuated at 40th passage for rabbits as well as buffaloes since it did not produce any thermal reaction or skin lesions. It induced high level of humoral and cell mediated immune response in rabbits as well as buffaloes. The antibody titres o...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Mohanty PK,Rai A

    更新日期:1989-04-01 00:00:00

  • Tissue engineering: in vitro embryonal nidation in a murine endometrial construct.

    abstract::The epithelial and mesothelial cellular components of organs can be obtained as dissociated cells using adequate procedures of enzymatic digestion followed by pycnotic separation on density gradients. Using a specially developed procedure for tissue dissociation, the epithelial and connective tissue components of endo...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Stevenson AF

    更新日期:2003-06-01 00:00:00

  • Paraffin baiting system for demonstration of growth and biofilm production in Pseudomonas aeruginosa.

    abstract::Pseudomonas aeruginosa is one of the commonest pathogens among the pseudomonads. This organism can grow in minimal nutritional requirements. Because of the ability of pseudomonads to grow on paraffin is not commonly found among other human pathogens and the primary human pathogen being P. aeruginosa, we studied the ad...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Vishnu Prasad S,Ballal M,Shivananda PG

    更新日期:2007-03-01 00:00:00

  • Diagnostic relevance of silver stained nucleolar organizer region (AgNORs) in benign and malignant breast lesions.

    abstract::The present study is planned to assess the diagnostic relevance of silver stained nucleolar organizer regions (NORs) in discriminating benign from malignant lesions of the breast and to ascertain the interobserver variability in the enumeration of AgNOR counts. Forty four specimens of benign and malignant breast tissu...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Agarwal PK,Mehrotra A,Chandra T

    更新日期:1995-10-01 00:00:00

  • Effect of 5-lipoxygenase inhibition on events associated with inflammatory bowel disease in rats.

    abstract::Leukotrienes play a part in inflammatory response. The unique role of the enzyme 5-lipoxygenase (5-LOX) in the production of leukotrienes makes it a likely therapeutic target for inflammatory conditions like asthma, rheumatoid arthritis, psoriasis, and inflammatory bowel disease (IBD). The aim of the present study was...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Singh VP,Patil CS,Kulkarni SK

    更新日期:2004-07-01 00:00:00

  • Protective effect of vilva juice on glycoconjugate levels in experimentally induced constipation in rats.

    abstract::Efficacy of vilva, a polyherbal formulation was evaluated in morphine induced constipated rats. Vilva juice, at a dose of 1.5 ml/100 g body wt was given orally for a period of 7 days. Morphine sulfate was injected to induce constipation on 8th day, 45 min before the experiments. Protein bound glycoconjungates were est...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Padmini R,Sabitha KE,Devi CS

    更新日期:2004-10-01 00:00:00

  • Shelf life and colonization of soil by clay based cyanobacterial inocula.

    abstract::Four heterocystous cyanobacteria, isolated from grasslands of Ujjain were selected to prepare the clay based inoculants. Inoculants were evaluated for shelf life in terms of the titer value at 6 month intervals for 24 months. For colonization by inoculants in natural grasslands, the clay based inocula were applied to ...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Dubey V,Verma RC

    更新日期:2009-03-01 00:00:00

  • Factors affecting induction and development of in vitro rooting in apple rootstocks.

    abstract::Shoots of apple rootstocks raised in vitro were transferred to various rooting media to study the effect of different factors on root initiation and development. Various concentrations of indole-3-butyric acid (IBA) initiated rooting but maximum rooting percentage was found with 2.0 and 2.5 mg l(-1) of IBA in M7 and w...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Sharma T,Modgil M,Thakur M

    更新日期:2007-09-01 00:00:00

  • Effect of silymarin on curcumin-induced mortality in zebrafish (Danio rerio) embryos and larvae.

    abstract::In presence of 7.5 microM of curcumin, no embryos or larva of zebrafish survived 3 days of incubation; however, coincubation with 144 microg/ml silymarin increased the survival rates of curcumin-treated embryos and larvae to about 70%. Moreover, in presence of 12.5 microM curcumin, all embryos died after 2 days of inc...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Shiau RJ,Shih PC,Wen YD

    更新日期:2011-07-01 00:00:00

  • Effect of propofol in altering pentylenetetrazol induced seizure threshold in rats.

    abstract::The present study was undertaken to evaluate the role of propofol in altering pentylenetetrazol induced seizure threshold in rats. Total 42 Wistar rats were used to evaluate different parameters (onset of action, duration of seizure, seizure severity score and number of seizure) following propofol injection. The prese...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Prakash A,Medhi B,Puri A,Saikia B

    更新日期:2008-03-01 00:00:00

  • Binding pattern of 125iodine thyroxine and tri-iodothyronine in skin and liver tissues of spotted munia, Lonchura punctulata: co-relation to seasonal cycles of breeding and molting.

    abstract::Prevalent notion about thyroid hormones is that thyroxine (T4) is a mere precursor and physiological effects of thyroid hormones are elicited by tri-iodothyronine (T3) after mono-deiodination of T4. Earlier studies on feather regeneration and molt done on spotted munia L. punctulata suggest that T4 (mono-deiodination ...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Thapliyal A,Chandola-Saklani A,Bhatt D,Anthwal P

    更新日期:2014-05-01 00:00:00

  • Comparison of thermostable phosphatase and proteases from thermophilically disposed transition species and thermophilic actinomycetes.

    abstract::Thermoactinomycetes vulgaris is a thermophilic actinomycetes growing optimally at 50 degrees C and Streptomyces albus, S. coelicolor, S. fasciculus and S. olivochromogenes are thermophilically disposed transition species of actinomycetes, which have optimum biomass at 40 degrees C. The acid/alkaline phosphatase and ac...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Lalwani L,Rai V,Ali SS

    更新日期:1997-05-01 00:00:00

  • Spirulina platensis protects neurons via suppression of glial activation and peripheral sensitization leading to restoration of motor function in collagen-induced arthritic rats.

    abstract::Spirulina platensis treatment (400 mg kg(-1) for 25 days) effectively suppressed peripheral sensitization via modulation of glial activation and improved motor coordination and restoration of functional motor activity in collagen-induced arthritic rats. Spirulina treatment also resulted in an appreciable reduction of ...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Patro N,Sharma A,Kariaya K,Patro I

    更新日期:2011-10-01 00:00:00

  • Secretion of metastasis related gangliosides by mouse B16-melanoma in circulation in vivo and in culture media in vitro.

    abstract::Mouse B16LuF1 melanoma cells of lower metastatic potential to lung were treated in vitro with same concentration (50 microM) of gangliosides prepared from plasma of mice bearing lung metastasis of B16LuF5, B16LuF9 or B16LuF10 melanoma cell lines of increasing metastatic potential to lung (LuF1 < LuF5 < LuF9 < LuF10) a...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Saha S,Mohanty KC

    更新日期:2004-10-01 00:00:00

  • Susceptibility of diamond back moth, Plutella xylostella (L) to entomopathogenic nematodes.

    abstract::Eight entomopathogenic nematode species / strains, Steinernema glaseri (steiner), S. carpocapsae (Weiser), S. feltiae (Filipjev), Steinernema sp. Ecomax strain, Heterorhabditis bacteriophora (Pioner), Heterorhabditis sp. Ecomax strain, two locally isolated strains called as JFC and TFC were tested against the final in...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Shinde S,Singh NP

    更新日期:2000-09-01 00:00:00

  • Modulation of humoral and cell-mediated immune responses by Azadirachta indica (Neem) in mice.

    abstract::The effects of A. indica (AI, Neem) were evaluated on tests of humoral and cell-mediated immune responses after 3 weeks of oral AI (leaf extract) treatment in ovalbumin immunized mice. At the dose levels tested, AI (10, 30 or 100 mg/kg), had no appreciable influence on different organ (liver, spleen, thymus)/body weig...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Ray A,Banerjee BD,Sen P

    更新日期:1996-07-01 00:00:00

  • In vitro effects of organophosphate pesticides on rat erythrocytes.

    abstract::In vitro effects of various organophosphate pesticides (dimethoate, chlorpyrifos, ethion and monocrotophos) were studied on hemolysis, K+ leakage and lipid peroxidation in rat erythrocytes. All the four pesticides increased hemolysis and K+ leakage from erythrocytes, that was concentration and time dependent. On the c...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Singh M,Sandhir R,Kiran R

    更新日期:2004-03-01 00:00:00

  • Effect of single prenatal haloperidol exposure on hippocampus and striatum of developing rat brain.

    abstract::Poor development and differentiation of three layered cytoarchitectural pattern of brain, degenerating pyramidal cells with pyknotic nuclei and substantial loss of both large and small pyramidal cells of the hippocampal CA1 region were observed in fetuses of pregnant Charles-Foster rats exposed to single high dose of ...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Singh KP,Singh M

    更新日期:2001-03-01 00:00:00

  • Interaction of H2-receptor antagonists, cimetidine and ranitidine with microsomal drug metabolizing and other systems in liver.

    abstract::Cimetidine has been demonstrated to impair microsomal oxidative drug metabolizing and other enzyme systems in mouse liver. The inhibition is rapid, occurring after a single administration and also found to be dose-dependent. It is more significant after daily administration for 15 days. Enzyme inhibition by ranitidine...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Gill M,Sanyal SN,Sareen ML

    更新日期:1991-09-01 00:00:00

  • Testicular toxicity of di-n-butyl phthalate in adult rats: effect on marker enzymes of spermatogenesis.

    abstract::Di-n-butyl phthalate (DBP) was administered to adult male rats by gavage at the doses of 250, 500 and 1000 mg/kg body weight/day for 15 days. A significant decrease in epididymal spermatozoa counts was observed at 500 and 1000 mg/kg doses of DBP. The activity of sorbitol dehydrogenase was found to be significantly dec...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Srivastava S,Singh GB,Srivastava SP,Seth PK

    更新日期:1990-01-01 00:00:00

  • Basal metabolic rate, nonshivering thermogenesis and cold tolerance in rat during undernutrition and subsequent nutritional rehabilitation.

    abstract::Nutritional deprivation induced by increasing the litter size and subsequent dietary restriction results in rats having lower body weights and body lengths. Such undernourished rats have lower body temperatures as well as lower basal metabolic rate and nonshivering thermogenesis on a metabolic body weight basis; they ...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Muralidhara DV,Shetty PS

    更新日期:1990-10-01 00:00:00

  • Effect of Aloe vera (L.) Burm. fil. leaf gel and pulp extracts on kidney in type-II diabetic rat models.

    abstract::Significant degenerative changes were observed in the kidney tissue of untreated neonatal streptozotocin (n0STZ)-induced type-II diabetic rats. These degenerative changes were diminished in the kidney tissue of diabetic animals given glibenclamide and Aloe leaf gel and pulp extracts. Kidney lipid peroxidation levels w...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Bolkent S,Akev N,Ozsoy N,Sengezer-Inceli M,Can A,Alper O,Yanardag R

    更新日期:2004-01-01 00:00:00

  • Wheat (Triticum aestivum) peptide (s) mimic gibberellin action and regulate stomatal opening.

    abstract::Wheat peptides (0.5 to 3 KDa M(r)) mimick hormonal activity like that of gibberellins and forced open dark closed stomata. The deionized amphoteric peptides solution after passing through cation and anion exchanger resins was run through Amicon's ultrafilters, 10, 3 and 0.5 kDa (M(r)) cut off system. The 3 to 0.5 kDa ...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Ghosh A,Mandal P,Sircar PK

    更新日期:2010-01-01 00:00:00

  • Electrophysiological responses of the housefly, Musca domestica nebula (Fr), taste receptors to KCl.

    abstract::This paper aims at studying the response of the housefly labellar chemoreceptor to stimulation by KCl. These studies are limited to testing various concentrations of KCl solutions (0.005-1 M), using the electrophysiological "tip recording" method and examining the various spike characteristics such as threshold, phasi...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Raj M,Amin M

    更新日期:1990-04-01 00:00:00

  • Effect of storage of blood samples on DNA yield, quality and fingerprinting: a forensic approach.

    abstract::Various storage treatments on human blood samples have been described with respect to DNA yield, quality and fingerprinting. Blood samples were stored at room temperature, 4 degrees C, -20 degrees C and -70 degrees C for different duration varying from 1, 2, 4 and 8 weeks with or without anticoagulant/preservative (ED...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Bomjen G,Raina A,Sulaiman IM,Hasnain SE,Dogra TD

    更新日期:1996-04-01 00:00:00

  • Dioxygen reduction, reduced oxygen species, oxygen toxicity and antioxidants — A commentary.

    abstract::Molecular oxygen, a diradical, needs intervention of redox metal ions or other radicals to receive electrons for its reduction. The oxygen radicals thus produced are responsible for oxygen toxicity and oxidative stress. But, autoxidation, relevant in ischemia-reperfusion injury, is absent in any discussion on oxygen t...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Ramasarma T

    更新日期:2016-11-01 00:00:00

  • Polypeptide pattern of mRNA isolated from polysomal and non-polysomal mRNA-protein(mRNP) fractions in rat myoblast.

    abstract::Polypeptides synthesized from polysome-bound and unbound fractions of polyA mRNA were studied by in-vivo cells labelling and cDNA-mRNA hybrid-arrest translation. The polypeptides synthesized from unbound(free) fraction appeared to be significantly reduced in the absence of cycloheximide in L6 myoblast. The cDNA excess...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Bhattacharya P

    更新日期:1997-09-01 00:00:00

  • Effect of estradiol & testosterone on the pituitary prolactin levels in developing male & female rats.

    abstract::Testosterone priopionate (TP) or estradiol-17 beta (E2) were injected into male and female rats from day of birth to 15 days of age to determine the effect of these steroids on the pituitary prolactin (PRL) level in developing rats. Animals were autopsied on Days 5, 7, 10, 14, 17, 22, 25, 30, 37, 45, 52, and 60 and p...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Goomer N,Saxena RN,Sheth AR

    更新日期:1977-08-01 00:00:00

  • Isolation of Mycoplasma bovoculi from genitally diseased bovines and its experimental pathogenicity in pregnant guinea pigs.

    abstract::Thirteen strains of M. bovoculi, 6 from frozen bull-semen (3.5% of 168), 3 from neat bull-semen (3.0% of 100), one each from heart blood and stomach contents of aborted foetus of 85 (1.18%) bovine-abortions, one each from stomach contents and pooled internal organs of 9 (11.1%) stillborn calves, were isolated. All the...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Singh Y,Garg DN,Kapoor PK,Mahajan SK

    更新日期:2004-09-01 00:00:00

  • Clinico-biochemical use of serum acetylcholine esterase following treatment with synthetic pyrethroids, cypermethrin and fenvalerate, in cattle and buffalo experimentally infested with Boophilus microplus.

    abstract::Following treatment, cypermethrin and fenvalerate, were found to have inhibitory effect on serum acetylcholine esterase (AchE) activity of cattle and buffalo experimentally infested with B. microplus. The pattern of AchE activity in infested-pyrethroid-treated group was found to be significantly different from either ...

    journal_title:Indian journal of experimental biology

    pub_type: 杂志文章

    doi:

    authors: Ansari MZ,Kumar A,Prasad RL,Basu A,Sahai BN,Sinha AP

    更新日期:1990-03-01 00:00:00