PThirty-seven patients suffering from internal fixation failure in treating intertrochanteric fracture were selected from Department of Orthopaedics, First People’s Hospital of Chenzhou between July 2000 and March 2008, including 20 males and 17 females aged 74 years (range 63-84 years). All were treated by total hip replacement (THR) due to cutting damage of screws to femoral head, neck and acetabulum. The THR was performed 13-23 months from the first internal fixation. All patients had no severe cardiorespiratory dysfunction, local infection or other contraindication for replacement. Preoperative Harris scores were (40.0?12.2) points. Among all patients, 18 were treated by cemented THR, and the others by un-cemented. All 37 patients were followed up for average of 6.3 months. The average operative time was (81?13.6) minutes; the average amount of bleeding in operation was (662?51.8) mL. No infection, hypostatic pneumonia, pressing sore or deep venous embolism of lower limbs was found after replacement. Hip pain, weakness, limitation of motion did not occur during the follow-up period. In addition, no loosening or breaking of prosthesis was found on X-ray films, but the osteoporosis was gradually improved. The Harris scores were (83.0?12.4) postoperatively. The outcomes were excellent in 20 cases, good in 12 cases, fair in 4 cases, and poor in 1 case, and the rate of excellent and good was 86.49%. THR is an effective method for intertrochanteric fracture after internal fixation failure.

To explore the binocular disparity information for children with a normal vision based on computer-assisted evaluation system.We examined the random dot zero-order disparity,line zero-order disparity,2nd-order disparity and random dot motion parallax for 97 children with normal vision.And 94 children reached 100″ vision disparity both in random dot zero-order disparity and line zero-order disparity (pass rate of 96.9％) ; all 94 cases passed the 2nd-order disparity and random dot motion parallax.Thus children with a normal vision develop their stereopsis.

With the rapid development of medical imaging technique, iodinated contrast media (IOCM) has become the most commonly used agent in performing imaging diagnosis and interventional therapy. The use of IOCM, especially the use of non-ionic iodine contrast media, has been swiftly increased in recent years. The accompanying untoward reactions, such as allergic reactions, cardiovascular reactions, contrast media nephropathy, thyroid toxicity, etc. prove to be the new problems that greatly perplex the medical circle. With the continuous improvement of the knowledge to the untoward reactions, more and more physicians have paid attention to contrast media induced thyroid toxicity. At present, researches concerning iodine contrast media thyroid toxicity are still few, and the relevant research is particularly rare in China. This paper aims to make a review about the influence of different kinds of iodine contrast media on thyroid function.

Otolaryngology

Objective To investigate the effect of tuftsin and its inhibitor on pancreas microcirculation in acute pancreatitis(AP). Methods Sprague Dawley (SD) rats were randomly divided into five groups. Murine AP model was produced by retrograde injection of 4% sodium taurocholate into pancreatic duct, tuftsin or its inhibitor was injected at a dosage of 75 ?g/kg. At the time of 0,3, 6, 12 h, pancreas was harvested for pathology of microthrombus. esults Microthrombus in control group was not different with that in tuftsin group; At the time of 3、6 and 12 h microthrombus in other 3 groups significantly increased than control group and tuftsin group; With time, microthrombus in AP group、AP+ tuftsin group and AP+inhibitor group increased steadily and statistically significant; Tuftsin inhibitor significantly decreased microthrombus at the time of 6、12 h.Conclusions In acute pancreatitis tuftsin deteriorated pancreas microcirculation, which could be partially reversed by the administration of tuftsin inhibitor.

PurposeTo investigate the correlation between iodine concentration and clinical severity of acute pancreatitis (AP) through the quantitative evaluation with dual-energy spectral computed tomography (DESCT), so as to find out an effective imaging technology in the evaluation of clinical severity of AP.Materials and Methods Sixty patients with AP confirmed clinically (AP group) and 30 patients with normal pancreas (control group) were retrospectively analyzed. All the patients underwent enhanced CT scan in the spectral imaging mode. Iodine concentration and normalized iodine concentration (NIC) were respectively measured during arterial phase and portal phase in the material-decomposition images by using a spectral imaging viewer (GSI Viewer). Results Iodine concentration and NIC were significantly higher in the control group than in the AP group (P<0.05,P<0.001). In the AP group, according to Ranson grading, 24 patients were in the mild grade, 20 patients were moderate, and 16 patients were severe. Iodine concentration and NIC decreased along with the increase of their Ranson grade. There were significant difference in iodine concentration and NIC among the three subgroups (iodine concentration on arterial phase:F=8.776,P<0.01; iodine concentration on portal phase:F=4.019,P<0.05; NIC on arterial phase:F=12.700,P<0.001; NIC on portal phase:F=8.732,P<0.01). Iodine concentration and NIC on arterial and portal phases in the mild grade group were both significantly higher than those in the moderate grade group (P<0.05); however, iodine concentration on arterial and portal phases, and NIC on arterial phase in the severe grade group were significantly lower than those in the moderate grade group (P<0.05).Conclusion DESCT can analyze hemodynamic changes in AP quantitatively, which is of great value in evaluating changes in AP of each grade.

This study is to establish the HPLC fingerprint and determine eight components of Callicarpa nudiflora, and provide a scientific basis for the identification and quality control. The Waters sunfire C18 column (4.6 mm x 250 mm, 5 µm) was used and the detection wavelength was 330 nm . The column temperature was 30 °C. The mobile phases were acetonitrile (A) and 0.1% formic acid (B) eluting in a gradient program at a flow rate of 1.0 mL · min(-1). The chromatographic fingerprint similarity evaluation system for tradition Chinese medicine(2012) was used for analysis. C. nudiflora from different samples were of high similarity in fingerprint and the separation of ten components was good. There was an obvious difference between other samples and C. nudiflora leaves. In quantitative analysis, the ten components showed good regression(R2 > 0 999 0) with linear ranges, and their recoveries were in the range of 96.0%-105.0%. The established qualitative and quantitative methods are highly specific, simple and accurate, which can be used for the identification and quality control of C. nudiflora.
Callicarpa ; chemistry ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; analysis ; isolation & purification ; Plants, Medicinal ; chemistry

AIMTo explore the effect of sodium 4',7-bihydroxylisoflavone-sulfonate (SBIS) on gastric motility in rats and to analyse its mechanisms.

METHODSUsing intraperitoneal (ip) injection and intracerebroventriular (icv) microinjection of drugs and recording the frequency and amplitude of contraction of gastric motility.

RESULTS(1) The injection (ip) of different doses of SBIS could decrease the amplitude of gastric motility, but it wasn't a dose-dependent effect. SBIS also had no effect on the frequency of contraction. (2) The ip injection of naloxone reversed the inhibitory effect of SBIS on the amplitude of gastric contraction. (3) The effect of SBIS could be increased by the ip injection of propranolol and be reversed by the ip injection of phentolamine. (4) After the ip injection of atropine, the effect of SBIS on gastric motility had not been changed remarkably. (5) Different doses of SBIS had been microinjected (icy), but only the small dose decreased the amplitude of gastric motility and also the frequency of contraction had not been markedly changed.

CONCLUSIONBoth the i.p. and icv injection of SBIS can inhibit the gastric motility. Its effect can be achieved at least not only by endogenous opioid peptide and its receptors, but also adrenergic neuron and its alpha-receptors. Adrenergic neuron and its beta-receptors are also involved in the modulating effect of SBIS.

AIM: To observe the effects of oxygen free radical (OFR) and captopril on the level of asymmetric NG, NG-dimethyl-L-arginine (ADMA) in human vascular endothelial cells (HUVECs).METHODS: HUVECs of 3-6 th passage, cultured with modified Jaffes' method, were used in the experiment and divided into three groups: (1)Cells cultured with equivalence of DMEM medium as control; (2)OFR intervention groups, OFR at concentrations of 0 01 mmol/L, or 0 1 mmol/L, respectively, were added to the cell culture; (3)Drug intervention groups: the cell culture was treated with 0 1 mmol/L of OFR combined with 50 mg/L or 100 mg/L of captopril, respectively. Concentrations of ADMA, L-arginine, nitric oxide(NO), endothelin(ET) and the activity of angiotensin-converting enzyme(ACE) in conditioned medium were measured after 24 h exposure. RESULTS: Concentrations of ADMA, ET and the activity of ACE were increased, while the amount of NO decreased in OFR intervention groups compared with control group. After treatment with captopril, ADMA, ET concentrations and the activity of ACE were decreased, while the amount of NO increased, but the level of L-arginine had no obvious change. CONCLUSIONS: OFR induces endothelial dysfunction through increasing ADMA concentration, while captopril relieves endothelial dysfunction induced by ox-LDL through decreasing ADMA concentration.

Objective To explore the relation of recurrent laryngeal nerve damage with the mode of surgery and exposure of the nerve in thyroidectomies.Methods We retrospectively reviewed the clinical data of 2142 thyroidectomy patients.There were 540 unilateral and 1602 bilateral procedures with 3744 nerves at risk of injury.Among them,1986 nerves were explored and indentified,and 1758 nerves were not exposed.Results The overall incidence of recurrent laryngeal nerve injury was 0.93%(20/2142),and with an incidence of 0.37%(8/2142)for permanent damage.The injury incidence in the nerves exposure and non-exposure groups was 0.30% and 0.80%,respectively,the difference was significant between the two groups(P0.05).Conclusions The occurrence of recurrent laryngel nerve injury can be reduced or avoided by its careful exposure and identification during thyroid operation.