Abstract:
:The application of steroids has steadily increased thanks to their therapeutic effects. However, alternatives are required due their severe side effects; thus, studies on the activities of steroid derivatives are underway. Sugar derivatives of nandrolone, which is used to treat breast cancer, as well as cortisone and prednisone, which reduce inflammation, pain, and edema, are unknown. We linked O-glucose to nandrolone and testosterone using UDP-glucosyltransferase (UGT-1) and, then, tested their bioactivities in vitro. Analysis by NMR showed that the derivatives were 17β-nandrolone β-D-glucose and 17β-testosterone β-D-glucose, respectively. The viability was higher and cytotoxicity was evident in PC12 cells incubated with rotenone and, testosterone derivatives, compared to the controls. SH-SY5Y cells incubated with H2O2 and nandrolone derivatives remained viable and cytotoxicity was attenuated. Both derivatives enhanced neuronal protective effects and increased the amounts of cellular ATP.
journal_name
J Microbiol Biotechnoljournal_title
Journal of microbiology and biotechnologyauthors
Yu EJ,Yamaguchi T,Lee JH,Lim AR,Lee JH,Park H,Oh TJdoi
10.4014/jmb.1911.11057subject
Has Abstractpub_date
2020-04-28 00:00:00pages
604-614issue
4eissn
1017-7825issn
1738-8872pii
10.4014/jmb.1911.11057journal_volume
30pub_type
杂志文章abstract::Microbial community shifts, associated with performance data, were investigated in an anaerobic batch digester treating high-solid food waste under mesophilic conditions using, a combination of molecular techniques and chemical analysis methods. The batch process was successfully operated with an organic removal effic...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1306.06067
更新日期:2014-02-28 00:00:00
abstract::Outbreaks of staphylococcal food poisoning (SFP) causing serious human diseases and economic losses have been reported globally. Furthermore, the spread of Staphylococcus aureus with increased resistance to multiple antimicrobial agents has become a major concern in the food industries and medicine. Here, we isolated ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1908.08021
更新日期:2019-12-28 00:00:00
abstract::A novel cry2Ab gene was cloned and sequenced from the indigenous isolate of Bacillus thuringiensis subsp. kurstaki. This gene was designated as cry2Ab25 and its sequence revealed an open reading frame of 1,902 bp encoding a 633 aa protein with calculated molecular mass of 70 kDa and pI value of 8.98. The amino acid se...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1108.08061
更新日期:2012-01-01 00:00:00
abstract::Glucose dehydrogenase (GDH) is an oxidoreductase enzyme and is used as a biocatalyst to regenerate NAD(P)H in reductase-mediated chiral synthesis reactions. In this study, the glucose 1-dehydrogenase B gene (gdhB) was cloned from Bacillus thuringiensis subsp. kurstaki, and wild-type (GDH-BTWT) and His-tagged (GDH-BTN-...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1603.03021
更新日期:2016-10-28 00:00:00
abstract::Glucagon, a peptide hormone produced by alpha-cells of Langerhans islets, is a physiological antagonist of insulin and stimulator of its secretion. In order to improve its bioactivity, we modified its structure at the C-terminus by amidation catalyzed by a recombinant amidase in bacterial cells. The human gene coding ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-06-01 00:00:00
abstract::Sourdough is made by fermentation of dough by lactic acid bacteria (LAB) and yeast to improve bread properties like volume, flavor, and texture. A Korean traditional sourdough was made by fermenting rice flour with rice wine (makgeolli) and used to make sponge-like bread (jeung-pyun). The aim of this study was to inve...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1708.08003
更新日期:2017-10-28 00:00:00
abstract::In this study, three of the representative EDCs, 17beta-estradiol, bisphenol A, and styrene, were employed to find their mode of toxic actions in E. coli. To accomplish this, four different stress response genes, recA, katG, fabA, and grpE genes, were used as a representative for DNA, oxidative, membrane, or protein d...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2007-08-01 00:00:00
abstract::Based on its α-amylase activity at pH 5.0 and optimal pH of the crude enzyme, a strain (named B-5) with acid α-amylase production was screened. The B-5 strain was identified as Bacillus amyloliquefaciens through morphological, physiological, and biochemical characteristics analysis, as well as 16S rDNA phylogenetic an...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1409.09094
更新日期:2015-06-01 00:00:00
abstract::Cameleon is a genetically engineered Ca2+ sensing molecule consisting of two variants of the green fluorescent protein (GFP), calmodulin and calmodulin-binding protein, M13. HEK-293 cells stably expressing three types of cameleons, yellow cameleon-2, cameleon-3er, and cameleon-2nu, were constructed, and the expression...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2007-06-01 00:00:00
abstract::In this study, we investigated the potential of using sediment bioelectrochemical systems (SBESs) for in situ treatment of the water and sediment in brackish aquaculture ponds polluted with uneaten feed. An SBES integrated into a laboratory-scale tank simulating a brackish aquaculture pond was established. This test t...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1905.05043
更新日期:2019-07-28 00:00:00
abstract::Vibrio vulnificus is a causative agent of serious diseases in humans, resulting from the contact of wound with seawater or consumption of raw seafood. Several studies aimed at detecting V. vulnificus have targeted vvh as a representative virulence toxin gene belonging to the bacterium. In this study, we targeted the r...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.0800.176
更新日期:2008-11-01 00:00:00
abstract::The aim of this study was to develop a new fermentation method in order to improve the digestion of soybean protein, and to promote normal fermentation of soybean. A proximate composition, such as moisture, pH, and reducing sugar, of fermented soybeans by the new fermentation was similar to those of controls. Neutral ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2007-11-01 00:00:00
abstract::The aim of this work is to investigate the protective efficacy of emodin, an active, naturally-occurring anthraquinone derivative of several traditional Chinese herbs, against Brucella abortus infection in macrophages. Brucella were incubated with different concentrations of emodin and showed that bacterial survival r...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1804.04040
更新日期:2018-10-28 00:00:00
abstract::In order to establish an axenic (bacteria-free) culture of Microcystis aeruginosa NIER 10039 isolated from a Korean reservoir, the culture was subjected to sequential treatment, including ultrasonication, washing, and addition of antibiotics. Three broad-spectrum antibiotics, namely, kanamycin, ampicillin, and imipene...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1003.03028
更新日期:2010-07-01 00:00:00
abstract::To increase the availability of microalgae as producers of valuable compounds, it is necessary to develop novel systems for gene expression regulation. Among the diverse expression systems available in microalgae, none are designed to induce expression by low temperature. In this study, we explored a cold-inducible sy...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.2007.07024
更新日期:2020-11-28 00:00:00
abstract::In the course of screening for microbes with nematicidal activity, we found that Enterobacter asburiae HK169 displayed promising nematicidal activity against the root-knot nematode Meloidogyne incognita, along with plant growth-promoting properties. Soil drenching of a culture of HK169 reduced gall formation by 66% wh...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1801.01021
更新日期:2018-06-28 00:00:00
abstract::The objectives of this study were to determine the antibiotypes, SCCmec subtypes, PVL carriage, and genetic diversity of MRSA strains from a tertiary hospital. Sixtysix MRSA strains were selected randomly (2003, 2004, and 2007) and tested for the Panton-Valentine leukocidin gene, mecA gene, and SCCmec type via a PCR. ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2009-10-01 00:00:00
abstract::Staphylococcus aureus strains are important foodborne pathogens that produce various toxins. To evaluate the risk of the enterotoxins, four S. aureus strains from kinbap and two clinical samples were isolated and identified, and their expression of the enterotoxin genes were analyzed using a reverse transcription real...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2007-03-01 00:00:00
abstract::A commercial chromogenic agar medium (DFI) was supplemented with glucose (mDFI) to enhance the specificity of Enterobacter sakazakii (E. sakazakii) detection. Escherichia vulneris (E. vulneris), a putative false-positive strain on the DFI medium, produces alpha-glucosidase. The enzyme alpha- glucosidase hydrolyzes a s...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-03-01 00:00:00
abstract::Acetoin (AC) is a volatile platform compound with various potential industrial applications. AC contains two stereoisomeric forms: (3S)-AC and (3R)-AC. Optically pure AC is an important potential intermediate and widely used as a precursor to synthesize novel optically active materials. In this study, chiral (3R)-AC p...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1608.08063
更新日期:2017-01-28 00:00:00
abstract::A novel antifungal protein produced by the fungal strain Penicillium citrinum W1, which was isolated from a Southwest Indian Ocean sediment sample, was purified and characterized. The culture supernatant of P. citrinum W1 inhibited the mycelial growth of some plant pathogenic fungi. After saturation of P. citrinum W1 ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1405.05008
更新日期:2014-10-01 00:00:00
abstract::The roles of conserved amino acid residues (Val329-Ala330- Asn331-Glu332), constituting an extra sugar-binding space (ESBS) of Thermus maltogenic amylase (ThMA), were investigated by combinatorial saturation mutagenesis. Various ThMA mutants were firstly screened on the basis of starch hydrolyzing activity and their e...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-08-01 00:00:00
abstract::White spot syndrome virus (WSSV) is a major threat to the shrimp farming industry and so far there is no effective therapy for it, and thus early diagnostic of WSSV is of great importance. However, at the early stage of infection, the extremely low-abundance of WSSV DNA challenges the detection sensitivity and accurac...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1606.06053
更新日期:2017-03-28 00:00:00
abstract::An electron paramagnetic resonance (EPR) signal characteristic of the 5,5'-dimethyl-1-pyrroline-N-oxide (DMPO)-OH spin adduct, which is formed from the reaction of DMPO with superoxide radicals generated by xanthine oxidase-mediated reaction, was significantly reduced by the cadaverine or Escherichia coli Mn-containin...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2007-01-01 00:00:00
abstract::A novel putative toxin-antitoxin segregational stability system named KyAB system was identified in a novel native plasmid pBMB8240 from Bacillus thuringiensis strain YBT-1520, based on sequences homology with other toxin-antitoxin systems, the lethal activity of the KyB putative toxin in Escherichia coli and the stab...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-10-01 00:00:00
abstract::Nitrospira is a dominant member of nitrite-oxidizing bacteria (NOB) in nitrifying bioreactors as well as in natural habitats. In this study, Nitrospira NOB were investigated in the two nitrifying reactors operated with high and low dissolved oxygen (DO) concentrations for a period of 300 days. Phylogenetic and termina...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-08-01 00:00:00
abstract::Multidomain proteins for the biochemical analysis of the scouring efficiency of cotton fabrics were constructed by the fusion of a reporter moiety in the N-terminal and the cellulose binding domain (CBD) in the C-terminal. Based on the specific binding of the CBD of Cellulomonas fimi exoglucanase (Cex) to crystalline ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-03-01 00:00:00
abstract::To investigate the potential applications of bacterial heme, aminolevulinic acid synthase (HemA) was expressed in a Corynebacterium glutamicum HA strain that had been adaptively evolved against oxidative stress. The red pigment from the constructed strain was extracted and it exhibited the typical heme absorbance at 4...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1611.11010
更新日期:2017-03-28 00:00:00
abstract::The aim of this study was to isolate antioxidant peptides from an enzymatic hydrolysate of Spirulina platensis. A novel antioxidant peptide was obtained by ultrafiltration, gel filtration chromatography, and reverse-phase high-performance liquid chromatography, with the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical sca...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1601.01033
更新日期:2016-07-28 00:00:00
abstract::The carcinogenicity of chemicals in the environment is a major concern. Recently, numerous studies have attempted to develop methods for predicting carcinogenicity, including rodent and cell-based approaches. However, rodent carcinogenicity tests for evaluating the carcinogenic potential of a chemical to humans are ti...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1712.12043
更新日期:2018-04-28 00:00:00