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Articles by S. K Min
Total Records ( 5 ) for S. K Min
  H. J Kwak , S. K Min , J. S Kim and J. Y. Kim
  Background

Pain from a propofol injection is a common side-effect in paediatric patients. This prospective, randomized, double-blind study evaluated the efficacy of a combined pretreatment of alfentanil with lidocaine on the incidence and severity of propofol injection pain in children.

Methods

After obtaining parental consent, 120 paediatric patients were allocated randomly into one of the three groups (n=40, in each). The patients in the alfentanil group received alfentanil 15 µg kg–1 90 s before the propofol injection. The patients in the lidocaine group received propofol 3 mg kg–1 premixed with lidocaine 0.1% over a 15 s period. The patients in the combination group received both alfentanil and lidocaine.

Results

The incidence of propofol injection pain (severity 2 or more) in the combination group (2.6%) was significantly lower than that in the alfentanil and lidocaine groups (30% and 38.5%, respectively) (P=0.001 and <0.001, respectively). No patient in the combination group complained of moderate or severe pain from propofol injection.

Conclusions

Our study demonstrated that the combination treatment of two different analgesic modalities, alfentanil and lidocaine, could prevent the moderate and severe pain on propofol injection, and reduce the incidence of mild pain compared with each drug alone.

  H. J Kwak , J. Y Kim , S. K Min , J. S Kim and J. Y. Kim
  Background

The goals of this study were to determine the effective bolus dose of alfentanil required for successful tracheal intubation during inhalation induction using sevoflurane 5% without neuromuscular block in children, and whether nitrous oxide reduces these doses.

Methods

Fifty paediatric patients, aged 3–10 yr, were randomly assigned to one of the two groups. Subjects received either sevoflurane 5% in oxygen 100% (O2 group, n=25) or sevoflurane 5% in oxygen 40% and nitrous oxide 60% (N2O group, n=25) through a face mask. One minute after inhalation induction, a predetermined dose of alfentanil was injected over 15 s. The alfentanil dose was determined using Dixon's up-and-down method, starting from alfentanil 14 µg kg–1. The trachea was intubated 3 min after inducing anaesthesia.

Results

The ED50 [95% confidence interval (CI)] of alfentanil for successful tracheal intubation was 11.5 (9.9–13.1) and 8.6 (7.4–9.8) µg kg–1 in the O2 and N2O groups, respectively. The ED50 of the N2O group was significantly lower than that of the O2 group (P=0.0146). From isotonic regression, 50% effective dose (ED50) (95% CI) of alfentanil in the O2 and N2O groups was 11.4 (9.9–13.0) and 6.5 (5.0–8.1) µg kg–1, respectively.

Conclusions

The effective bolus dose of alfentanil for successful tracheal intubation was 11.5 µg kg–1 in 50% of children during inhalation induction using sevoflurane 5% without neuromuscular blocking agent. Addition of nitrous oxide 60% in oxygen reduced the effective alfentanil dose by 25%.

  R. D Kenagy , S. K Min , A. W Clowes and J. D. Sandy
 

High blood flow through baboon polytetrafluorethylene aorto-iliac grafts increases neointimal vascular smooth muscle cell (SMC) death, neointimal atrophy, and cleavage of versican to generate the DPEAAE neoepitope, a marker of ADAMTS-mediated proteolysis. In this study, we have determined the effect of high blood flow on transcript abundance in the neointima for ADAMTS1, -4, -5, -8, -9, -15, and -20. We found that after 24 hr of flow, the mRNA for ADAMTS4 was significantly increased, whereas that for the other family members was unchanged. Because vascular SMC death is markedly increased in the graft after 24 hr of high flow, we next examined the possibility that the ADAMTS4 induction and the cell death are causally related. The addition of Fas ligand to SMC cultures increased both ADAMTS4 mRNA and cell death ~5-fold, consistent with the idea that ADAMTS4-dependent cleavage of versican may be partly responsible for cell death and tissue atrophy under these conditions. (J Histochem Cytochem 57:889–897, 2009)

  S. K Min , K Nakazato , Y Yamamoto , K Gushiken , H Fujimoto , H Fujishiro , Y Kobayakawa and K. Hiranuma
 

Background: The authors previously identified a significant association between lumbar disc degeneration (LDDG) and cartilage intermediate layer protein (CILP) single nucleotide polymorphism (SNP) in collegiate male judokas.

Hypothesis: A significant association between LDDG and the CILP SNP is observed in Japanese collegiate athletes.

Study Design: Cross-sectional study; Level of evidence, 3.

Methods: The participants were 601 trained collegiate athletes (male, 403; female, 198) from 7 different sports. Lumbar disc degeneration was evaluated using T2-weighted magnetic resonance imaging. Genotyping of the CILP gene (1184T/C) was performed by using DNA sequencing.

Results: Among the 601 collegiate athletes, the odds ratio (OR) for the occurrence of LDDG with the CILP C allele was 1.4 (95% confidence interval [CI], 1.05-1.86). By using logistic regression analysis concomitant with the interaction term and the Wald test, the authors found that weight (OR, 1.04; 95% CI, 1.02-1.06), CILP genotype (CT: OR, 2.0; 95% CI, 1.24-3.15; CC: OR, 2.9; 95% CI, 1.09-7.74), and gender (OR, 2.1; 95% CI, 1.21-3.67) were significant risk factors for LDDG. These analyses also indicated that there was no effect of the CILP genotype on LDDG in female athletes.

Conclusion: The CILP SNP 1184T/C is a risk factor for male collegiate athletes. Information regarding the CILP gene polymorphism may be important for preventing and managing lumbar disc diseases, especially in male athletes.

 
 
 
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