Gram-Positive Bacteria

Publication Title: 
Letters in Applied Microbiology

Sandalwood oil has been found in numerous therapeutic applications in traditional medicines such as Chinese traditional medicine and Ayurveda. However, there are no comparative accounts available in the literature that focused on in vitro and in vivo tree sample-derived extracts. Combined dichloromethane and methanol extracts were obtained from in vitro samples, that is, callus, somatic embryo and seedlings, and in vivo from leaves of non-oil-yielding young and oil-yielding matured trees.

Author(s): 
Misra, B. B.
Dey, S.
Publication Title: 
Fitoterapia

Fifty methanolic plant extracts belonging to 44 plant species of 33 families finding use in Iranian folkloric medicine were screened for antibacterial activity. Thirty samples, including 28 species in 20 families, had antibacterial activity against at least on one of the bacteria. Among the active plants, 32.6% were active against G(-), 62% against G(+), and 47.3% against both G(-) and G(+) bacteria. Dianthus coryophyllus was active against all tested G(-) and G(+) bacteria except Micrococcus luteus.

Author(s): 
Bonjar, G. H. Shahidi
Publication Title: 
Journal of Natural Medicines

Antibacterial activity of hot aqueous and methanolic extracts prepared from six plants (Terminallia chebula, Terminallia bellerica, Phyllanthus emblica, Punica granatum, Lawsonia alba and Mikania micrantha) used in traditional folk medicines of India were screened against five pathogenic bacteria (Staphylococcus aureus MTCC 2940, Bacillus subtilis MTCC 441, Escherichia coli MTCC 739, Proteus vulgaris MTCC 426 and Enterobacter aerogenes MTCC 111). The highest antibacterial potentiality was exhibited by the methanolic leaf extract of T. chebula, followed by the aqueous fruit extract of T.

Author(s): 
Ghosh, Anupam
Das, Bidus Kanti
Roy, Arup
Mandal, Biplab
Chandra, Goutam
Publication Title: 
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy

A green rapid biogenic synthesis of silver nanoparticles (Ag NPs) using Terminalia chebula (T. chebula) aqueous extract was demonstrated in this present study. The formation of silver nanoparticles was confirmed by Surface Plasmon Resonance (SPR) at 452 nm using UV-visible spectrophotometer. The reduction of silver ions to silver nanoparticles by T. chebula extract was completed within 20 min which was evidenced potentiometrically.

Author(s): 
Mohan Kumar, Kesarla
Sinha, Madhulika
Mandal, Badal Kumar
Ghosh, Asit Ranjan
Siva Kumar, Koppala
Sreedhara Reddy, Pamanji
Publication Title: 
Journal of Ethnopharmacology

Adiantum Linn. of Adiantaceae family is one of the most common and widely distributed species. Ethnomedicinally, the genus is important and popularly known as "Hansraj" in Ayurvedic System of Medicine. It has been used in cold, tumors of spleen, liver and other viscera, skin diseases, bronchitis and inflammatory diseases. It is also considered as tonic and diuretic. In the present study its four important species, i.e. Adiantum capillus-veneris, Adiantum peruvianum, Adiantum venustum and Adiantum caudatum were collected and extracted with methanol.

Author(s): 
Singh, Meenakshi
Singh, Neha
Khare, P. B.
Rawat, A. K. S.
Publication Title: 
Pharmaceutical Biology

CONTEXT: The roots of Plumbago zeylanica Linn. (Plumbaginaceae) are reputed to have a wide spectrum of therapeutic properties in the Ayurvedic system of medicine. They are useful in curing many ailments such as skin diseases, diarrhea, plague and leprosy. OBJECTIVE: The study was aimed at isolating, separating and evaluating the antimicrobial properties of compounds such as neoisoshinanolone and 1-epineo-isoshinanolone from the roots of P. zeylanica. MATERIALS AND METHODS: The crude petroleum ether extract of roots of P.

Author(s): 
Jetty, Annapurna
Subhakar, Chennupati
Rajagopal, Duddumpudi
Jetty, Manasa
Subramanyam, Mukkamala
Marthanda Murthy, Madugula
Publication Title: 
The Journal of Antimicrobial Chemotherapy

OBJECTIVES: The capacity to properly address the worldwide incidence of infectious diseases lies in the ability to detect, prevent and effectively treat these infections. Therefore, identifying and analysing inhibitory agents are worthwhile endeavours in an era when few new classes of effective antimicrobials have been developed.

Author(s): 
Haydel, Shelley E.
Remenih, Christine M.
Williams, Lynda B.
Publication Title: 
Archives of Biochemistry and Biophysics

Efficient iron acquisition is critical for an invading microbe's survival and virulence. Most of the iron in mammals is incorporated into heme, which can be plundered by certain bacterial pathogens as a nutritional iron source. Utilization of exogenous heme by bacteria involves the binding of heme or hemoproteins to the cell surface receptors, followed by the transport of heme into cells. Once taken into the cytosol, heme is presented to heme oxygenases where the tetrapyrrole ring is cleaved in order to release the iron.

Author(s): 
Tong, Yong
Guo, Maolin
Publication Title: 
European Urology

In 268 patients seen for sterility, sexual impairment or suspected prostatitis symptoms, first and midstream urine fractions, prostatic secretion and post-massage urine cultures as well as semen cultures and exfoliative cytologies of the first urine fraction and prostatic secretion were performed. Gram-positive bacteria were isolated in 160 cases. Of these, 111 (69.3%) had significant cultures (Meares and Stamey criteria). Nevertheless, when we repeated the study without previous therapy, the results could not be confirmed.

Author(s): 
Jiménez-Cruz, J. F.
Martínez Ferrer, M.
Allona Almagro, A.
De Rafael, L.
Navio-Niño, S.
Baquero Mochales, M.
Publication Title: 
Urology

OBJECTIVES: To determine the rate of gram-positive localizations and whether repetitive cultures demonstrate consistent localization of gram-positive bacteria in patients with chronic prostatitis symptoms. METHODS: We repeated localization cultures at different visits for untreated patients with chronic prostatitis symptoms. RESULTS: A total of 470 patients with chronic prostatitis had lower urinary tract localization cultures done.

Author(s): 
Krieger, John N.
Ross, Susan O.
Limaye, Ajit P.
Riley, Donald E.

Pages

Subscribe to RSS - Gram-Positive Bacteria