BACKGROUND:Comparative study results between the efficacies of traditional Chinese medicine (TCM) therapy with Western medicine therapy in the treatment of knee osteoarthritis remain controversial. Currently, meta-analysis studies mainly focuson comparison of the efficacy between TCM and Western medicine,butlack investigations among TCM therapies. Itmakes usdifficult tofulyunderstand the efficacy of TCM therapy for knee osteoarthritis.
OBJECTIVE:To compare the efficacies of TCM therapy with intra-articular injection of hyaluronic acid for knee osteoarthritis using a networkMeta-analysis method.
METHODS:PubMed, The Cochrane Library (tissue 10, 2015), EMbase, CNKI, CBM, VIP, Wangfang databaseswere searchedup to October 20, 2015forrelevantrandomized controled trialsaddressingthe efficacies of TCM therapyversusintra-articular injection of hyaluronic acid for knee osteoarthritis. Two reviewers independently selected the studies, extracted information, and assessed the quality of included trials. Data extraction from eligible studies was pooled and meta-analyzed using Stata12.0 and WinBUGS1.4.3softwares. Odd ratios with their 95% confidence interval were estimated as effect size between treatments.
RESULTS AND CONCLUSION:A total of 59 randomized controled trials involving 6 155 patients with knee osteoarthritis and 12 treatment strategies were included. The results of network meta-analysis showed that TCM comprehensive therapy wassuperior to the TCM monotherapy and intra-articular injection of hyaluronic acid. Among thesetherapies, the efficacy of needle scalpel combined with acupuncture is optimal. TCM comprehensive therapies may be the best choice to treat patients with knee osteoarthritisofKelgren-LawrenceII-III. Morelarge-scaleand wel-designedrandomized controled trials are stil warranted due to the limitation of the present study.

ObjectiveTo investigate effects of 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside (TSG), on learning and memory function and excitability in Alzheimer's disease rat model induced by cholinergic damage.MethodsBasal forebrain of rats were injured by ibotenic acid injection of 10μg each side. Rats were divided into six groups as the operation, model, positive control drug donepezil hydrochloride, TSG low (0.03g/kg), middle (0.06g/kg) and high (0.12g/kg) dose groups. These drugs were intragastrically administrated for 1 month. The learning and memory function were determined with Morris water maze, channel water maze and step through tests, and the excitability was evaluated by open field analysis. Results TSG (low, middle and high dose)significantly decreased the swimming time and error times (P<0.05) in water maze test and TSG high dose improved the ability of passive avoidance response at step through test.Open field test showed that there was no significant difference on excitability between each group ConclusionTSG can improve learning and memory abilities of Alzheimer's disease rat induced by cholinergic damage, TSG(low and middle dose)improve excitability of central nervous system in Alzheimer's disease rat model,but TSG dose maybe inhibite excitability of central nervous system.

Objective To investigate the usefulness of 3 T MRI 3D-FIESTA in the evaluation of the intraparotid components of the facial nerve and parotid duct, and compare them with surgical findings. Methods Twenty-two cases with parotid benign tumors were scanned with conventional and 3D-FIESTA sequences on 3 T MRI scanner. Postprocessed multiplanar images were obtained with the workstation. Parotid ducts and facial nerves and tumors were identified on these images. The relationship of the tumors to the facial nerves and Parotid ducts was confirmed at surgery. Results Various types of parotid benign tumors had their characteristics on 3 T MR imaging. Parotid benign tumors mainly showed hypo-intensity on T_1WI in 21 cases, and hyper-intensity on T_2WI in 22 cases. But on 3D-FIESTA images, they appeared hypo-intensity (10 cases) or high intensity (12 cases) due to different types. Facial nerves in parotid appeared as linear structures with hypo-inteusity. The indication of the main trunks were 16 and 18 cases for T_1WI and T_2WI images, while on 3D-FIESTA images, the main trunks and cervicofacial and temporofacial divisions of the facial nerves were found in 22, 21,22 cases. Parotid ducts appeared as structures with hypo-intensity on T_1WI and hyper-intensity on multiplanar images (14, 20, 22 cases). Compared with surgical results, the main trunks of the facial nerve were correctly showed by 3D-FIESTA images in 20 cases. However, in 2 cases they were not located in the operation because of shifting. Conclusion 3 T MR 3D-FIESTA imaging could depict the extracranial facial nerve and the parotid duct in the parotid gland, which is useful for preoperative evaluation of parotid gland tumors.

BACKGROUND: Paraquat (PQ) is a world-wide used herbicide and also a type of common poison for suicide and accidental poisoning. Numerous studies have proved that the concentration of serum PQ plays an important role in prognosis. Spectrophotometry, including common spectrophotometry and second-derivative spectrophotometry, is commonly used for PQ detection in primary hospitals. So far, lack of systematic research on the reliability of the method and the correlation between clinical features of patients with PQ poisoning and the test results has restricted the clinical use of spectrophotometry. This study aimed to evaluate the reliability and value of spectrophotometry in detecting the concentration of serum PQ. METHODS: The wavelengths for detecting the concentration of serum PQ by common and second-derivative spectrophotometry were determined. Second-derivative spectrophotometry was applied to detect the concentration of serum PQ. The linear range and precision for detection of PQ concentration by this method were confirmed. The concentration of serum PQ shown by second-derivative spectrophotometry and HPLC were compared in 8 patients with PQ poisoning. Altogether 21 patients with acute poisoning 4 hours after PQ ingestion treated in the period of October 2008 to September 2010 were retrospectively reviewed. The patients were divided into higher and lower than 1.8 μg/mL groups based on their concentrations of serum PQ measured by second-derivative spectrophotometry on admission. The severity of clinical manifestations between the two groups were analyzed with Student's t test or Fisher's exact test. RESULTS: The absorption peak of 257 nm could not be found when common spectrophotometry was used to detect the PQ concentration in serum. The calibration curve in the 0.4–8.0 μg/mL range for PQ concentration shown by second-derivative spectrophotometry obeyed Beer's law with r=0.996. The average recovery rates of PQ were within a range of 95.0％ to 99.5％, relative standard deviation (RSD) was within 1.35％ to 5.41％ (n=6), and the lower detection limit was 0.05 μg/mL. The PQ concentrations in serum of 8 patients with PQ poisoning shown by second-derivative spectrophotometry were consistent with the quantitative determinations by HPLC (r=0.995, P<0.0001). The survival rate was 22.2％ in patients whose PQ concentration in serum was more than 1.8 μg/mL, and the incidences of acidosis, oliguria and pneumomediastinum in these patients were 55.6％, 55.6％and 77.8％, respectively. These clinical manifestations were different significantly from those of the patients whose PQ concentration in serum was less than 1.8 μg/mL (P<0.05). CONCLUSIONS: For common spectrophotometry, the wavelength at 257 nm was not suitable for detecting serum PQ as no absorbance was shown. Second-derivative spectrophotometry was reliable for detecting serum paraquat concentration. Serum PQ concentration detected by second-derivative spectrophotometry could be used to predict the severity of clinical manifestations of patients with PQ poisoning, and PQ content higher than 1.8 μg/mL 4 hours after ingestion could be an important predictive factor for poor prognosis.

OBJECTIVETo investigate the pathogenic factors of human cytomegalovirus (HCMV) infections.

METHODSTotally 36 serum samples were obtained from early pregnant woman and examined with ELISA for anti-HCMV antibody IgG and IgM. After artificial abortion,chorionic villus and decidua were also examined with polymerase chain reaction (PCR) for HCMV-DNA. When the results of PCR were positive, pathological changes of these chorionic villus and decidua were analyzed.

RESULTSThe results showed that only 10 samples were PCR positive while IgG and/or IgM antibody to HCMV was positive. After infection with HCMV, different changes occurred in chorionic villus and decidual trophoblastic cells placental villus were hyperplasic and decidua cells degenerated and necrotized followed by lymphocytes infiltration.

CONCLUSIONThese pathological changes may be one of pathogenic factors of HCMV.

Adult ; Antibodies, Viral ; blood ; Chorionic Villi ; pathology ; virology ; Cytomegalovirus ; genetics ; immunology ; isolation & purification ; Cytomegalovirus Infections ; pathology ; DNA, Viral ; analysis ; Decidua ; pathology ; virology ; Female ; Humans ; Immunoglobulin G ; blood ; Immunoglobulin M ; blood ; Pregnancy ; Pregnancy Complications, Infectious ; pathology ; virology

Objective: To observe the effects of manganese( Ⅲ ) meso-tetrakis (N, N'-diethylimidazolium-2-yl) porphyrin (MnTDM) in treatment of early Parkinson's disease(PD) mouse model induced by subcutaneous injection of 1-methyl-4-phenyl1, 2, 3, 6-tetrahydropyridine(MPTP) and to discuss its possible mechanism. Methods:Forty male C57BL/6 mice were evenly randomized into 4 groups: MPTP model group(subcutaneous injection of 25 mg/kg MPTP for 3 days), MnTDM+ MPTP group (15 mg/kg MnTDM was subcutaneously injected 1 h before MPTP injection), MnTDM control group, and normal saline group. Performance of animals in the pole and swimming test was observed 3 days after the last injection. Levels of dopamine (DA) and its metabolites(3,4-dihydroxyphenylacetic acid [DOPAC] and homovanillic acid [HVA]) in the striatum of animals were measured by high-performance liquid chromatography with an electrochemical detector(HPLC-ECD). Thiobarbituric acid (TBA) method was used to examine the levels of malondialdehyde(MDA). Results: Acute injection of MPTP could be used for establishment of PD model. The striatal levels of DA, DOPAC and HVA in MPTP group were significantly lower(P＜0.01)and the striatal level of MDA was significantly higher(P＜0.05) than those of the control group. MPTP had no obvious effect on the behavioral performance of the animals in a short term. MnTDM could partly inhibit the above effects of MPTP. Compared with MPTP group, MnTDM+ MPTP group had significantly higher DA, DOPAC, and HVA levels and significantly lower MDA level(all P＜0.05). There was no significant difference in the behavioral indices of animals between the 4 groups. Conclusion:MnTDM can inhibit lipid peroxidation and promote DA production; it has preventive and therapeutic effects on MPTP induced PD.

Objective To investigate the circadian and seasonal distribution of cardiovascular events (CVE) and the relationship between average monthly temperature and the incidence of CVE. Methods A total of 5837 emergency patients with CVE were enrolled from 1997 to 2007. The exact admission time of each patient was registered. The average monthly temperature data from a regional weather station for this time period was supplied by the meteorological office of the city. The relationship between the average monthly temperature and the incidence of CVE was explored and the corresponding curves were plotted. Results The occurrence of CVE has obvious seasonal variation, and its a higher tendency of episodes was found in spring and winter periods. High incidence of acute myocardial infarction, angina pectoris, acute left-sided heart failure, hypertensive crisis, and sudden death occurred in spring and winter as wee as the time for a change of season, that is, January, February, March, April, October, November, and December. There was a significant negative correlation between the incidence and the average monthly temperature (P<0.005-0.001). Circadian rhythm of CVE was present, with a peak in the early morning and forenoon. Conclusion There are circadian and circannian rhythms of the incidence of CVE. Cold weather condition is a risk factor for the occurrence of CVE, which usually peaks in the early morning and forenoon.

Objective - （ ） To analyze the epidemiological characteristics of occupational noise induced deafness ONID （ ） diagnosed by Guangdong Province Hospital of Occupational Disease Prevention and Control GDHOD from 2016 to 2020 and - Methods the reasons non ONID diagnosis. The data of ONID patients diagnosed in GDHOD from 2016 to 2020 were collected “ from the Occupational Disease Report Card in the Occupational Disease and Occupational Health Information Monitoring ” “ ” - System subsystem of the China Disease Prevention and Control Information System . The data of non ONID subjects were ， collected from the occupational disease diagnosis archives in the same hospital and the relevant data were analyzed Results ， ， （ ） retrospectively. Of the 1 432 subjects 824 subjects were diagnosed as ONID patients mainly of mild ONID 86.0% . （M） ， M Male patients accounted for 88.0%. The median of diagnosis age was 45.0 years old and of length of employment of ， ， ， diagnosis was 8.3 years. ONID patients were mainly found in Zhongshan Dongguan Zhuhai Jiangmen and Guangzhou City in ， ， （ ） the Pearl River Delta accounting for 67.6%. The cases distributed in 519 enterprises mainly on manufacturing 90.2% . ， - ， ； Among the 139 enterprises each enterprise had 2 11 patients worked within five years accounting for 53.9% 91.1% of the -， - - - ONID patients were distributed in large medium and small enterprises. ONID patients mainly worked in non public enterprises that accounted for 91.3%. There were 606 subjects could not be diagnosed as ONID. The main reasons for not being （ ）， diagnosed were that the weighted value of better ear hearing threshold was less than 26 dB 34.8% the working history of （ ）， occupational noise exposure was less than three years 31.5% the weighted value of better ear hearing threshold was less thanConclusion 26 dB and the average hearing threshold of binaural high frequency was less than 40 dB 16.2% . The ONID ， ， -， - patients have the characteristics of group aggregation. The Pearl River Delta manufacturing industry large medium and - - ： small non public enterprises are the key points of ONID prevention. The main reasons for not being diagnosed as ONID were ， the working history of occupational noise exposure was less than three years the weighted value of better ear hearing threshold ， - was less than 26 dB and the average high frequency hearing threshold of both ears was less than 40 dB.

Objective To investigate the impact of aging and vascular endothelial function on arterial stiff- ness in patients with isolated systolic hypertension.Methods Patients with isolated systolic hypertension (ISH,n=75)age-matched healthy subjects(n=30)and young healthy subjects(n=50)were submitted to deter- mination of aortic pulse wave velocity(baPWV)and vascular endothelial function evaluated by flow-mediated dila- tion(FMD).Results baPWV was progresively decreased(ISH:2459.2?436.8 vs elderly healthy:2097.2? 315.7 vs young healthy:1619.7?214.2 cm/s,P

Aim To study the mechanism of the anti-aging effect of total extract of astragalus(TEA) in mice. Methods MDA content, the activities of Mn-SOD and GSHpx and the reduced to oxidized glutathione (GSH/GSSG) ratio in mitochondria of D-galactose(D-gal) treated mice and 17-month-old mice were measured. Results Treatment with TEA(40 mg?kg-1?d-1 ig) for 10 wk would lower the content of MDA and restore activities of Mn-SOD,GSHpx and GSH/GSSG ratio in mitochondria of D-gal treated mice.Treatment with TEA (40 mg?kg-1 ?d-1 ig) for 3 mon had the same effect on 17-month-old mice.Conclusion TEA has anti-aging effect on D-gal treated mice and 17-month-old mice significantly, probably being related to its anti-oxidative effect.