Abstract：
:In the present studies, the role of oxidative stress in radiosensitization by a combination of 2-DG and 6-aminonicotinamide (6-AN) was examined in a human glioma cell line (BMG-1: wild type p53). Presence of 2-DG or 6-AN for 4 hr after irradiation (gamma ray 2.5 Gy) significantly enhanced the radiation-induced cell death by 18% and the combination (2-DG + 6-AN) enhanced the cell death by 35%. Neither 2-DG nor 6-AN had any further significant effect on the glutathione levels in irradiated cells. However, the combination (2-DG + 6-AN) caused a significant decrease in GSH content, increase in GSSG levels, and enhanced the superoxide radical generation under these conditions. The enhanced cell death caused by the combination (2-DG + 6-AN) mainly resulted by the process of apoptosis as revealed by annexin V binding and was associated with elevated levels of Cyclin B1. However, no significant change was observed in the levels of Bcl-2. Thus, for the first time, our results have demonstrated that the radiosensitizing effects of these modifiers could also be mediated through alterations in the oxidative stress besides energy limited inhibition of repair and recovery processes.
journal_name
Indian J Exp Bioljournal_title
Indian journal of experimental biologyauthors
Varshney R,Adhikari JS,Dwarakanath BSkeywords:
subject
Has Abstractpub_date
2003-12-01 00:00:00pages
1384-91issue
12eissn
0019-5189issn
0975-1009journal_volume
41pub_type
杂志文章abstract：:Concentrations of mono- and divalent cations in the testis, three different regions of the epididymis and the vas deferens of lizard, M. carinata were determined. The concentrations of Na+, K+ and Ca2+ increased gradually from testis to vas deferens. However, no significant variation in the levels of Mg2+ was observed...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2008-10-01 00:00:00
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：
更新日期：2007-09-01 00:00:00
abstract：:The present study revealed the damaging effects of copper and hydrogen peroxide on DNA isolated from human blood in in vitro. Ultra violet spectral studies showed that copper and H2O2 alone (at 20 mM) caused destabilization of DNA structure. Notwithstanding, the effect was more prominent in combination of copper and H...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2006-05-01 00:00:00
abstract：:Thiram was administered to male rats through gavage at doses 5, 10 and 25 mg/kg/day for 180 and 360 days. Thiram has caused marginal increase in the relative weight of testes and epididymis and decrease in the weight of seminal vesicle and prostate. Marked degenerative changes were observed in seminiferous tubules tog...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1998-04-01 00:00:00
abstract：:Bryan Standard strain of Rous Sarcoma Virus (BS-RSV) of subgroup A and pseudotype of Bryan high titre RSV(RAV-49) of subgroup C and an equal mixture of subgroup A and subgroup C virus were inoculated to 11-day old embryos of white leghorn (WL), Australorp (AL) and f1 and f2 generations of crosses between WL and AL bre...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:Mechanisms of interleukin-18 (IL-18) and interleukin-10 (IL-10) in lipopolysaccharide (LPS) induced endotoxemia are not clear; their protective role is being investigated so that they may effectively modulate the host cytokine levels during endotoxemia. The aim of the study was to evaluate protective effects of IL-18 ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2010-11-01 00:00:00
abstract：:Diabetes induced by streptozotocin (50 mg/kg body wt, i.p.) in the rats substantially increased the plasma glucose and malondialdehyde levels along with corresponding decrease in the antioxidants levels. Supplementation of vitamin E (200 mg/kg body wt., ip) for 5 weeks resulted in non-significant decrease in the blood...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2005-02-01 00:00:00
abstract：:The toxic effect of dried berries powder of P. cubeba, dried fruit powder of P. longum and T. terrestris singly as well as in combination [binary (1:1) and tertiary (1:1:1)] were studied against snail L. exustus. Toxicity of these plant products were time and concentration dependent. Ethanol extracts of these plants w...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2009-08-01 00:00:00
abstract：:In the present investigation, growth of the organisms was reduced due to presence of arsenic (III) and (V) in the culture medium. In comparison to arsenic (V), arsenic (III) had more toxic effect on microalgae. Among the different algal strains, blue green algal species Oscillatoria-Lyngbya mixed culture showed maximu...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2004-05-01 00:00:00
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journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2011-02-01 00:00:00
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journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2012-01-01 00:00:00
abstract：:Satavari mandur (SM) is a herbo-mineral preparation containing Asparagus racemosus, which finds mention in ancient Indian texts for treatment of gastric ulcers. The ulcer protective effect of SM, 125-500 mg/kg given orally, twice daily for three, five and seven days, was studied on cold restraint stress-induced gastri...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2002-10-01 00:00:00
abstract：:Head and neck squamous cell carcinoma (HNSCC), a common malignancy that possibly involves a combination of exposure to the carcinogens and inherited genetic differences in the enzymes catalyzing their metabolism. Alcohol and tobacco consumption are the primary environmental risk factors, while polymorphism in various ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章,评审
doi：
更新日期：2010-07-01 00:00:00
abstract：:N-Cyclohexyl-3-methoxyquinoxalin-2-carboxamide (QCM-13), a novel 5-HT3 antagonist identified from a series of compounds with higher pA2 (7.6) and good log P (2.91) value was screened in rodent models of depression such as forced swim test (FST), tail suspension test (TST), interaction studies with standard anti-depres...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2011-08-01 00:00:00
abstract：:Sulforaphane, a constituent of broccoli was investigated for its antimutagenic potential against different classes of cooked food mutagens (heterocyclic amines). These include imidazoazaarenes such as 2-amino-3-methylimidazo[4,5-f]quinoline (IQ), 2-amino-3,4-dimethylimidazo[4,5-f]quinoline (MeIQ), 2-amino-3,8-dimethyl...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2003-03-01 00:00:00
abstract：:Reperfusion injury is remarkable clinical issue that needs to be resolved as ischemia-reperfusion is a common phenomenon encountered in numerous clinical situations. The present communication report the involvement of nitric oxide (NO) in cardioprotection offered by flavonoids (rutin and quercetin) against myocardial ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2011-03-01 00:00:00
abstract：:The mechanism of Agrobacterium mediated genetic transformation of plants is dependent upon certain genetic function of the chromosome of the bacterium as well as on Ti-plasmid borne vir loci and the border sequences of T-DNA. The organisationally variable forms of the naturally occurring border sequences amongst Ti-pl...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1991-11-01 00:00:00
abstract：:Aluminium phosphide(AlP), a grain fumigant pesticide, was studied for its cardiotoxicity in anaesthetised rats. The hemodynamic and cardiac biochemical changes were investigated following intragastric administration of different doses of AlP (10, 20 and 40 mg). With 10 and 20 mg dose of AlP an immediate fall in BP was...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1997-10-01 00:00:00
abstract：:A study to monitor marine pollution with reference to trace elements (Fe, Zn, Mn and Cu) on T. attenuata, commonly called as screw shell over a period of one year on the whole body and various organs, viz. digestive diverticula, foot, mantle and ovary was conducted from the sandy beach of Porto Novo Coast (Lat 11 degr...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1999-11-01 00:00:00
abstract：:The present study evaluates effect of pharmacokinetic interaction between caffeine (300 mg) in three divided doses with sodium valproate (400 mg) and carbamazepine (200 mg) given as single doses, in normal human volunteers, using a open cross over design. Both the serum concentration of sodium valproate and pharmacoki...
journal_title：Indian journal of experimental biology
pub_type： 临床试验,杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:Effects of a selective monoamine oxidase (MAO)--A inhibitor, clorgyline, a selective MAO-B inhibitor, deprenyl, and a non-selective MAO inhibitor, nialamide, were investigated on footshock-induced aggression (FIA) in paired rats. The doses and pretreatment times of the inhibitors used were based on an earlier reported...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1990-08-01 00:00:00
abstract：:Presence of angiotensin converting enzyme (ACE, EC 3.4.15.1) in female reproductive tract and its interaction with semen has been investigated in domestic fowl. Higher activity of ACE was detected in homogenates of infundibulum region followed by magnum and relatively low level was noticed in rest of the parts of the ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1993-07-01 00:00:00
abstract：:Octapeptide (OP)/FSH-Receptor Binding Inhibitor-8 (FRBI-8), is a synthetic peptide corresponding to N-terminal sequence of purified fraction of Follicle Stimulating Hormone Binding-Inhibitor (FSHBI), isolated earlier from human ovarian follicular-fluid. In order to avoid the repeated drug-administration, OP-loaded, po...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2013-12-01 00:00:00
abstract：:Secretion of ligninperoxidase [E.C.1.11.1.7] by Penicillium citrinum, Fusarium oxysporum and Aspergillus terreus in liquid culture growth medium has been demonstrated. Enzymatic characteristics like Km, pH and temperature optima using veratryl alcohol as the organic substrate of ligninperoxidases from above sources ha...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
abstract：:In dengue type 2 virus (DV)-induced suppressor T cell cascade TS1 cells secrete a suppressor cytokine (SF) which acts via syngeneic macrophages (M phi) to recruit TS2 cells. SF binds to both high and low affinity receptors (SF-R) on M phi. In the present study the fate of SF in M phi during transmission of suppressor ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1997-08-01 00:00:00
abstract：:Urokinase-type plasminogen activator(uPA) assayed in uteri of cycling and deciduoma bearing rats shows detectable levels of this enzyme in endometrium. Zymographic analysis confirms uPA of decidual tissue and, following artificial induction of decidualisation, uPA activity constantly increases in the decidualising end...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1994-05-01 00:00:00
abstract：:To investigate the acute effect of ethanol (4 g/kg, i.p.) on spleen adult female Wistar rats were treated intraperitoneally with: a) ethanol (4 g/kg body wt), b) naltrexone (5 mg/kg body wt) followed 45 minutes later by ethanol (4 g/kg body wt) and c) naltrexone (5 mg/kg body wt) alone. Untreated and saline-treated ra...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2000-05-01 00:00:00
abstract：:Chemical composition of inter and intracellular hyphae was elucidated in Pennisetum pedicellatum roots colonized by Gigaspora margarita by employing energy dispersive X-ray microanalysis. Maximum amount of phosphate was estimated in polyphosphate granules present in the roots. Amount of phosphate was low in fungal hyp...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2000-04-01 00:00:00
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 ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：:Eclosion rhythm parameters of D. ananassae strains originating between 8 degrees-34 degrees N were highly variable and latitude dependent. In the field under naturally fluctuating light intensity, temperature and R.H., the amplitude of the rhythm was high and the eclosion gate was narrow; however, under the naturally ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1999-07-01 00:00:00
