Macrolide(Ma) resistance has been spreading for more than 13 years worldwide accompanying Ma widely used for anti-mycoplasma pneumoniae (Mp)infection,and has been rapidly increasing.Prevalence of Ma resistance has been higher in Asia than in Europe and America.More than 10 positions of Mp mutation were found.Of them A2058G in domain V of 23S ribosomal RNA gene is frequently found in Europe and America,and A2063G is found dominant in Asia.Different position points of Mp mutation are related with different Ma resistance.Real time PCR for detecting Mp and its mutation position directly from bronchoalveolar lavage fluid is the most accurate method.Treatment with minocycline and garenoxacin for Ma-resistant Mp infection are known most effective.

Due to its exquisite sensitivity, excellent molecular specificity and reduced photobleaching, surface-enhanced Raman spectroscopy has wide potential applications in the fields of food and drug analysis, environmental monitoring and biological detection. However, SERS is only a qualitative or semi-quantitative detection technique at the present stage, and has not yet been widely recognized as a routine quantitative technique. This review discusses the pros and cons of the quantitative surface-enhanced Raman spectroscopic techniques developed so far in the literature, and looks forward to the future trend in this field.

A novel method was proposed for the quantification of nitrite ion in aqueous samples by the combination of an advanced quantitative fluorescence model with ratiometric fluorescence indicator 2 , 3-diaminonaphthalene . The proposed method was tentatively applied to direct quantitative determination of nitrite ion in turbid environmental water samples containing both scatterers and absorbers; and its performance was thoroughly investigated and evaluated. Experimental results showed that the proposed method could realize accurate quantitative determination of nitrite ion in environmental water samples with recovery rates in the range of 90. 8%-103. 0%, which were comparable to the corresponding values of HPLC-DAD experiments. The limit of detection and limit of quantification of the proposed method were estimated to be 1 . 9 and 5. 8 nmo/L, respectively.

21 8 patients with acute pulpitis were randomly divided into 2 groups.1 09 cases were treated by Depulpin inactivation agent (group DI)for emergency management,another 1 09 cases were treated by pulp drainage with phenol camphor cotton ball(group CP).The effective analgesia rate of DI and CP group was 95.4% and 69.7% respectively(P<0.001 ).

Objective To investigate the clinical application of acupuncture combined with general anesthe -sia in gynecologic laparoscopic surgery .Methods 60 ASA( the American society of anesthesiologists )Ⅰ-Ⅱpatients undergoing elective gynecologic laparoscopic surgery were randomly divided into the acupuncture group and control group.Patients in the acupuncture group were chosen Hegu (LI 4),Neiguan(PC 6) on both sides.After acupuncture, the two acupoints,electroacupuncture stimulated 20-30min,then administered general anesthesia ,electroacupuncture until surgery finished ,the control group received general anesthesia only .The drug dosages of the two groups was regu-lated,maintained anesthesia depth bispectral index ( BIS) between 40 and 60.The changes of the blood pressure ( BP) ,heart rate and BIS of the two groups at the same time points were observed;the propofol and remifentanil dos-age after the surgery ,the awaken time and extubation time ,OAA/S score and pain score after wake ,the happening of restlessness,chills,nausea and vomiting ,the usage of narcotic analgesics postoperation ,and the intraoperative aware-ness were recorded .The effect of acupuncture combined with general anesthesia was evaluated .Results Anesthetic dosage propofol of the acupuncture group [(7.44 ±1.30)μg· kg-1· h-1] was less than [(8.66 ±1.24)μg· kg-1· h-1] of the control group (t=3.720,P=0.001),remifentanil dosage was also less than the control group [acupunc-ture group (10.59 ±2.58)μg· kg-1· h-1,control group (11.93 ±2.27)μg· kg-1· h-1,t=2.168,P=0.034]. Compared with the basic value ,the BP values were higher at the time of intraoperation ,waking,extubation and 10 min after extubation (all P<0.05),the acupuncture group had more stable BP .Compared with the acupuncture group , heart rates in the control group were faster at extubation and 10min after extubation .Recovery time and extubation time of the acupuncture group were (9.05 ±2.36)min and (1.61 ±2.40)min,which were shorter than (12.50 ± 3.20)min and (15.90 ±3.37)min of the control group (P<0.05).Pain score(VAS) in the acupuncture group was lower than that of the control group .Consciousness score was higher in the acupuncture group ,the incidence rates of restlessness,chills were less.Conclusion The use of acupuncture combined with general anesthesia in gynecologic laparoscopic surgery can reduce the dosage of general anesthetics ,shorten the awaken time and extubation time ,increase the OAA/S score of the patients ,relieve pain ,and the recovery quality is higher .

Objective To evaluate the changes of the waveform of the photopic negative response in flash-electroretinogram, visual acuity and central retinal thickness in the treatment of intravitreal injections of bevacizumub. Design Retrospective self-comparative case series. Partidpants 8 subjects (9 eyes) with exudative age-related macular degeneration and 3 subjects (3eyes) with proliferative diabetic retinopathy. Method Evaluation protocol included examinations of the Early Treatment Diabetic Retinopathy study visual acu-ity, visual field, intraocular pressure, fundus fluorescein angiography, optical coherence tomography and flash-electroretinogram. Intravit-real injections of bevacizumab, 1.25 mg (0.05ml), were given under an operating microscope and aseptic conditions. All the subjects were followed-up one month later. Main outcome Measure The amplitudes of PhNR, visual acuity and central retinal thickness. Re-sult At 1 months, the mean amplitudes of PhNR and mean visual acuity in all cases had no obvious change (n=12, P>0.05).The central retinal thickness reduced obviously (n=12, P<0.05), but it was neither significantly correlated with PhNR (r=0.294, P=0.145) nor with visual acuity(r=-0.358, P=0.073). Conclusion The single intravitreal injection of bevacizumab is showed promising in absorption of in-traretinal edema and subretinal fluid in patients with exudative age-related macular degeneration and proliferative diabetic retinopathy, but the changes of visual function (including PhNR) might need further investigation. (Ophthalmol CHN, 2009, 18: 243-246)

Whennearinfraredspectroscopyisappliedtoon-linemonitoringandcontroloftobaccoflavors,the variation in temperature can severely deteriorate the predictive performance of near infrared spectroscopic calibration models and results in a significant increases of the root mean square error value for the main constituents in syrup samples from 2. 4% to 29. 0%. In this paper, near infrared spectroscopy has been incorporated with an advanced calibration transfer method-loading space standardization to effectively eliminate the deteriorate effects of temperature variation on quantitative results and finally realize the fast and accurate on-line quantitative monitoring and control of tobacco flavors. The root mean square error value for the main constituents in syrup samples is successfully retained at a satisfying low level of 3 . 8%. The results of this paper will provide technical support for the preparation, preservation and use of tobacco flavors, and realize on-line process quality control of cigarettes.

Objective To explore the method to control the quality of Rheum nobile. , a widely used Tibet-an herbal medicine. Methods The herb powder of ten batches of Rheum nobile was identified by thin layer chromatography ( TLC) with piceatannol-4′-O-β-D-glucopyranoside as the reference substance, and the moisture content, total ash and acid-insoluble ash were detected in accordance with Appendix IX of Chinese Pharmacopoeia 2010 Edition. The contents of piceatannol-4′-O-β-D-glucopyranoside and res-veratrol-4′-O-β-D-glucopyranoside were determined by using HPLC. Results The spots of piceatannol-4′-O-β-D-glucopyranoside of ten batches of Rheum nobile were clear and well separated. The range of moisture content was from 7 . 46% to 9 . 14%, and that of total ash was 2 . 72% to 8 . 75%, and that of acid-insoluble ash 0 . 50% to 2 . 51%. The content of piceatannol-4′-O-β-D-glucopyranoside was showed a good linear relationship at the range of 1 . 768 to 70 . 720 mg/L ( r=0 . 999 8 ) and the recovery rate was 101. 11% ( RSD =0. 89%), by parallel, that of resveratrol-4′-O-β-D-glucopyranoside was showed a good linear relationship at the range from 0 . 416 to 16 . 640 mg/L ( r=0 . 999 6 ) and the recovery rate was 99. 68% (RSD=2. 54%). Conclusion The methods of TLC and HPLC are simple, accurate and re-peatable, which could be the option of the quality control of Rheum nobile.

Extranodal NK/T cell lymphoma, nasal type（ENKTL） is a highly aggressive malignant tumor derived from NK cells. This article reports a case of ENKTL invading the larynx and digestive tract. The clinical clinical manifestations include hoarseness and intranasal masses.
Humans ; Lymphoma, Extranodal NK-T-Cell/pathology* ; Nose/pathology* ; Nose Neoplasms/pathology* ; Larynx/pathology* ; Gastrointestinal Tract/pathology*

Threatened abortion is a common disease of obstetrics and gynecology and one of the diseases responding specifically to traditional Chinese medicine （TCM）. The China Association of Chinese Medicine organized experts in TCM obstetrics and gynecology， Western medicine obstetrics and gynecology， and pharmacology to deeply discuss the advantages of TCM and integrated Chinese and Western medicine treatment as well as the medication plans for threatened abortion. After discussion， the experts concluded that chromosome， endocrine， and immune abnormalities were the key factors for the occurrence of threatened abortion， and the Qi and blood disorders in thoroughfare and conception vessels were the core pathogenesis. In the treatment of threatened abortion， TCM has advantages in preventing miscarriages， alleviating clinical symptoms and TCM syndromes， relieving anxiety， regulating reproductive endocrine and immune abnormalities， personalized and diversified treatment， enhancing efficiency and reducing toxicity， and preventing the disease before occurrence. The difficulty in diagnosis and treatment of threatened abortion with traditional Chinese and Western medicine lies in identifying the predictors of abortion caused by maternal factors and the treatment of thrombophilia. Recurrent abortion is the breakthrough point of treatment with integrated traditional Chinese and Western medicine. It is urgent to carry out high-quality evidence-based medicine research in the future to improve the modern diagnosis and treatment of threatened abortion with TCM.