Measurement of the W mass in e+e−e^+ e^- collisions at 183 GeV

The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 57 pb$^{-1}$ collected with the ALEPH detector in 1997 at a centre-of-mass energy of 183 GeV. The invariant mass distributions of reweighted Monte Carlo events are fitted separately to the experimental distributions in the $qqbarqqbar$ and all l\nuqqbar channels to give the following W masses: $m_{W}^{hadronic} = 80.461 \pm 0.177(stat.) \pm 0.045(syst.) \pm 0.056(theory) GeV/c^2$, $m_{W}^{semileptonic} = 80.326 \pm 0.184(stat.) \pm 0.040(syst.) GeV/c^2$ where the theory error represents the possible effects of final state interactions. The combination of these two measurements, including the LEP energy calibration uncertainty, gives $m_{W} = 80.393 \pm 0.128(stat.)\pm 0.041(syst.) \pm 0.028(theory)\pm 0.021(LEP) GeV/c^2

Unilaterally posterior lumbar interbody fusion with double expandable peek cages without pedicle screw support for lumbar disc herniation

Objectives Posterior lumbar interbody fusion (PLIF) is usually bilateral procedure, and it is combined with posterior by bilateral pedicle screw support or with fixation. The purpose of this retrospective study was to compare the surgical outcomes of simple discectomy and PLIF without pedicle screw support in patients with lumbar disc herniation (LDH). Patients and methods 60 patients with single segment LDH were operated between February 2010 and June 2013. 40 patients were treated with simple discectomy (Group 1) and 20 patients were treated with PLIF using double expandable polyetheretherketone (PEEK) cages without instrumentation (Group 2) unilaterally. Pain and function were evaluated by the visual analog scale (VAS) and Oswestry disability index (ODI) before and 18 months after surgery. Besides, PLIF patients were evaluated with computerized tomography (CT) scan of lumbar vertebra for the evaluation of the height of the disc, instability and fusion. Results Both leg and low back pain VAS scores were significantly improved 18 months after surgery in both of the groups (p < 0.001). Significant decrease in VAS low back pain scores was seen in group 2 when compared to group 1 (p < 0.001). Height of the intervertebral disc space was preserved and no instability was detected in group 2. No recurrence and 80% fusion rate was achieved in group 2. Conclusion This study showed that unilateral PLIF intervention with double expandable PEEK cages without pedicle screw support would be sufficient in the management of single segment lumbar disc herniation in patients whom are thought to have lumbar stabilization. © 201

Liv-52; Prophylactic or therapeutic agent against desflurane-induced hepatotoxicity in rats

Cetin, Nihal/0000-0003-3233-8009WOS: 000383364400013Liv-52 has hepatoprotective effect and may be beneficial for desflurane hepatotoxicity. We aimed to investigate the prophylactic or therapeutic effects of Liv-52 on hepatotoxicity induced desflurane. the study was designed into seven groups as healthy group (HG), desflurane control groups (DCG-1, DCG-2, and DCG-3), Liv-52 treatment after desflurane (DLG), Liv-52 treatment before desflurane group (LDG), and Liv-52 treatment before and after desflurane group (LDLG). Desflurane was adjusted as to 6 % concentration for two hours. Liv-52 was given 20 mg/kg. Alanine transaminase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), malondialdehyde (MDA), and total glutathione (tGSH) levels were measured. MDA, tGSH, ALT, AST, and LDH levels of DLG, LDG, and LDLG were found statistically significant compared to controls and healthy groups (p 0.05). Pathological findings such as sinusoidal dilatation congestion and inflammation areas were observed in control groups but not in LDLG. Both prophylactic and therapeutic uses of Liv-52 may be the most appropriate methods to be minimized desflurane-induced hepatotoxicity.Erzincan University Scientific Research Projects Department [SAG-B-080715-0173]This research was supported by Erzincan University Scientific Research Projects Department. Project number is SAG-B-080715-0173