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Balakrishnan Vandana,Lakshmiammal Saraswathy,Gowrikutty K Suseeladevi,Karimassery Ramaiyer Sundaram,Harish Kumar 셀메드 세포교정의약학회 2013 셀메드 (CellMed) Vol.3 No.2
The objective of the current study was to find out the effect of Integrated Amrita Meditation Technique (IAM) on blood pressure (BP), heart rate (HR), respiratory rate (RR) and IgA. One hundred and fifty subjects were randomized into three groups IAM, Progressive Muscle Relaxation (PMR) and Control. Baseline values were collected before giving the training for all the subjects and the IAM and PMR groups were given training in the respective techniques. BP, HR, RR and IgA were recorded manually at 0 h, 48 h, 2 months and 8 months after the first visit. HR was found to be reduced in the IAM group 48 h onwards and the fall sustained till 8 months (p < 0.05). IAM group showed significant drop when compared to the PMR group and control group in all the subsequent visits (p < 0.05). RR decreased significantly in the IAM group in the third and fourth visits (p < 0.05). RR of IAM showed significant decrease when compared to PMR and control from the third visit onwards. IgA showed significant increase in comparison with PMR and control in the third and fourth visits. BP did not show any difference in any of the visits. There was subject dropout from randomization to completion of the study, in all the three groups. The significant decrease in HR and RR and increase in IgA in the IAM group when compared to the PMR and control group shows the efficacy of the technique in reducing the physiological stress indicators for up to 8 months.
Balakrishnan, B.,Park, S. H.,Kwon, H. J. Springer Science + Business Media 2017 Biotechnology letters Vol.39 No.1
<P>MppE controls the biosynthesis of the yellow pigments, ankaflavin and monascin, as a reductive enzyme in the azaphilone polyketide pathway.</P>
Balakrishnan, A.,Panigrahi, B.B.,Sanosh, K.P.,Chu, Min-Cheol,Kim, T.N.,Cho, Seong-Jai Elsevier 2009 Journal of materials processing technology Vol. No.
<P><B>Abstract</B></P><P>This work attempts to improve the mechanical properties of alumina-10wt% zirconia (3mol% yttria stabilized) composite by infiltrating a glass (magnesium aluminum silicate glass) of lower thermal expansion on the surface at high temperature. The glass improved the strength of the composite at room temperature as well as at higher temperatures. There was a significant improvement in the Weibull modulus after the glass infiltration. Glass-infiltrated samples showed better thermal shock resistance. The magnitude of strength increment was found to be in the order of the surface residual stress generated by thermo-elastic properties mismatch between the composite and the infiltrated glass.</P>
Balakrishnan, P.,Song, C. K.,Jahn, A.,Cho, H. J. Springer Science + Business Media 2016 Pharmaceutical research Vol.33 No.1
<P>To evaluate the anti-tumor effect of ceramide or trimethylphytosphingosine-iodide (TMP-I) containing solid lipid nanoparticles (SLNs) prepared using trymyristin, phosphatidylcholine (PC), and Pluronic P85 (P85) for intravenous delivery of docetaxel. Docetaxel-loaded SLNs using ceramide or TMP-I at 3.22% (w/w) with a mean diameter of 89-137 nm were successfully prepared by high pressure homogenization. The prepared nanoparticles were characterized by particle size, zeta potential, drug content, and TEM analysis. Cellular uptake and cytotoxicity were studied using adriamycin-resistant breast cancer (MCF-7/ADR) cells. The optimized formulation's dissolution profile, pharmacokinetics, and antitumor effect in mice tumor model were compared with that of control (Taxotere(A (R))). The drug release rate of docetaxel from SLNs was lower than that of control (Taxotere(A (R))). The prepared SLNs showed higher cellular uptake of docetaxel compared to that of Taxotere(A (R)) in MCF-7/ADR cell lines, which was further confirmed by the confocal laser scanning microscopy (CLSM) study using coumarin 6 (C6). Prepared SLNs exhibited significantly increased antitumor efficacy, compared to Taxotere(A (R)), in MCF-7/ADR cells. In vivo pharmacokinetic study in rats (at 10 mg/kg dose) showed that the SLNs significantly reduced in vivo clearance of drug than Taxotere(A (R)). Interestingly, ceramide and TMP-I SLNs efficiently inhibited the tumor growth compared to Taxotere(A (R)) in MCF-7/ADR tumor xenografted mouse model. This work showed that TMP-I and ceramide SLNs not only significantly enhanced systemic exposure of drug, but also increased antitumor efficacy compared to Taxotere(A (R)) and control SLN.</P>
Microindentation fracture behavior of surface modified alumina ceramic using glass infiltration
Balakrishnan, A.,Panigrahi, B.B.,Chu, M.C.,Kim, T.N.,Cho, S.J. Elsevier 2009 Journal of materials processing technology Vol.209 No.4
This study investigates the effect of a low expansion glass (Mg<SUB>3</SUB>Al<SUB>2</SUB>Si<SUB>6</SUB>O<SUB>18</SUB>) treatment on the surface fracture toughness of sintered alumina. The surface fracture toughness was determined by direct indentation method (Vickers indentations), carried out at different loads ranging from 9.8 to 196N. The crack lengths on the surface at each load were found to be decreased (8-12%) by glass treatment and the corresponding crack resistance values increased by about 17-20%. Both sintered and glass treated specimens showed rising trend in crack resistance values as the indentation load was increased. There was also a significant increase in the Weibull modulus value of crack resistance. Improved properties of glass treated sample were attributed to the formation of a relatively larger process zone surrounding the crack, crack arrest behavior due to the compressive stresses and the crack bridging phenomena. The compressive stresses were generated from the thermo-elastic properties mismatch: (a) between the glass and the ceramic in the glass infiltrated zone, and (b) the glass-ceramic composite layer and the ceramic substrate.
Balakrishnan Santhanaraj,Ponnusamy Ponmurugan,Sathibabu Uddandrao V. V.,Saravanan Ganapathy 경희대학교 융합한의과학연구소 2020 Oriental Pharmacy and Experimental Medicine Vol.20 No.3
We evaluated the beneficial effects of some varieties of Saudi Arabian date fruits against Freund’s complete adjuvant (FCA)- induced rheumatoid arthritis in rats. Arthritic rats were treated orally for 30 days with methanolic extracts of Sukkari, Ekhlass Almajmaah, Abu Minifee and Dawee verities [500 mg/kg body weight (BW)] and Indomethacin (10 mg/kg BW) administered as standard for comparison. We evaluated the effects of the extracts on arthritis (paw volume and arthritis score), body weight, renal marker levels, and bone metabolic enzymes as well as the antioxidant activities in the experimental and control rats. All verities of date fruit extracts were significantly decreased the arthritis which was evident with arthritis score, paw volume as well as the maintenance of biochemical parameters and antioxidant activities. The present study was suggested that date fruit extracts has prominent anti-arthritic activity which may be attributed to its anti-inflammatory and antioxidant activities.
Balakrishnan Avinash,Kim Yun-Jong,Lee Seung-Woo,Kim Taik-Nam 배재대학교 공학연구소 2004 공학논문집 Vol.6 No.1
In the present study, a simple method was successfully used for hydroxyapatite coatings on Ti-6AL-4V substrates deposited by using a sol-gel derived precursor. Prior to hydroxyapatite coating the samples were micropolished (0.1 micron) and divided into three sets. The first set, were the micropolished samples kept as such. The second set were coated with titania sol and the third set was treated with 5M NaOH. After three repetitions of hydroxyapatite coating procedures on each set and heat treatment at $600^{\circ}C$, the formation of hydroxyapatite has been confirmed by XRD analyses and the substrate material was found to be oxidized with negligible amount of CaO in the coating. The SEM studies revealed surface morphology. Hydroxyapatite, calcined at $600^{\circ}C$, displaying a porous structure arisen from heating of the bulk