To observe therapeutic results of acupuncture combining with behavior medicine therapy in treating repetitive strain injury (RSI), 150 patients were randomly divided into two groups with 90cases in the treatment group and 60 cases in the control group. Statistic analysis and comprehensive therapeutic evaluation were given on pain severity, functional condition, course of treatment and recurrent rate before and after treatment. The differences were significant in course of treatment and the recurrent rate in the two groups (P＜0.01). Acupuncture combining with behavior medicine therapy was effective in treating RSI and adjusting bad behavior habits.

Objective To investigate the adjuvant therapeutic efficacy of three-dimensional conformal radiotherapy (3D-CRT) in treating patients who underwent surgical operation for biliary drainage.Methods Clinical data on 88 clinically diagnosed advanced pancreatic head carcinoma patients who received palliative biliary drainage surgery in Tanshan Gongren Hospital from Jan 2006 to Jan 2010 were retrospectively reviewed. The cases were categorized according to the treatment into control group ( n=34 ) , chemotherapy group ( n=23 ) and radiotherapy group ( n=31 ) . The patients in control group received no chemotherapy or radiotherapy after biliary drainage surgery.The patients in chemotherapy group received chemotherapy of 1 000 mg/m2 gemcitabine intravenous infusion on day 1 and day 8, 80 mg/m2 cisplatin intravenous infusion on day 1 for each treatment cycle.Each cycle lasted for 21 days and was repeated for 3 cycles at an interval of 7 days in a treatment course.Patients in radiotherapy group received 3D-CRT for 6 successive days followed by an interval on the 7th day.The treatment course was completed within 10~15 days with the total dosage of 3 000~4 800 cGy.The therapeutic effects and survival time were analyzed.Results The incidence of cancer associated pain was 52.9%, 39.1%and 9.7%in control group, chemotherapy group and radiotherapy group, respectively, which was significantly lower in radiotherapy than that in the other two groups (both P<0.05). The incidence of mild gastrointestinal symptoms was 8.8%, 73.9% and 16.1%, respectively, and that of bone marrow suppression was 0%, 82.6% and 9.7%, respectively, which were both significantly lower in radiotherapy group than in chemotherapy group (both P<0.05).The 1-year, 2-year and 3-year survival rate was 30.1%, 8.3%, 0% in control group, 35.3%, 14.8%, 0% in chemotherapy group and 46.4%, 21.1%, 3.6%in radiotherapy group, which in radiotherapy group was significantly higher than that in control group and chemotherapy group (all P<0.05).Conclusions 3D-CRT was a palliative strategy for advanced pancreatic head cancer, which could prolong the survival of patients.

Lignin degradation products are toxic to microorganisms, which is one of the bottlenecks for fuel ethanol production. We studied the effects of phenolic ketones (4-hydroxyacetophenone, 4-hydroxy-3-methoxy-acetophenone and 4-hydroxy-3,5-dimethoxy-acetophenone) derived from lignin degradation on ethanol fermentation of xylose and cellular lipid composition of Pichia stipitis NLP31. Ethanol and the cellular fatty acid of yeast were analyzed by high performance liquid chromatography (HPLC) and gas chromatography/mass spectrometry (GC/MS). Results indicate that phenolic ketones negatively affected ethanol fermentation of yeast and the lower molecular weight phenolic ketone compound was more toxic. When the concentration of 4-hydroxyacetophenone was 1.5 g/L, at fermentation of 24 h, the xylose utilization ratio, ethanol yield and ethanol concentration decreased by 42.47%, 5.30% and 9.76 g/L, respectively, compared to the control. When phenolic ketones were in the medium, the ratio of unsaturated fatty acids to saturated fatty acids (UFA/SFA) of yeast cells was improved. When 1.5 g/L of three aforementioned phenolic ketones was added to the fermentation medium, the UFA/SFA ratio of yeast cells increased to 3.03, 3.06 and 3.61, respectively, compared to 2.58 of the control, which increased cell membrane fluidity and instability. Therefore, phenolic ketones can reduce the yeast growth, increase the UFA/SFA ratio of yeast and lower ethanol productivity. Effectively reduce or remove the content of lignin degradation products is the key to improve lignocellulose biorefinery.
Acetophenones ; chemistry ; Ethanol ; chemistry ; Fermentation ; Industrial Microbiology ; Ketones ; chemistry ; Lignin ; chemistry ; Lipids ; chemistry ; Phenols ; chemistry ; Pichia ; chemistry ; Xylose ; chemistry

Objective To investigate the underlying mechanism of bone marrow mesenchymal stem cells (BMSC) modulating the inflammatory response during the multiple organ dysfunction syndrome (MODS), especially the expression of inflammatory cytokines, which will provide new theoretical and experimental basis of MODS in clinic. Methods BMSC of Sprague-Dawley (SD) rat (female, 4 weeks) was extracted and cultivated, and the 4th passage were used in experimental study. According to the random number table, 60 female SD rats were divided into three groups (n = 20 per group): sham group, MODS group, BMSC group. MODS model in rats was induced by lipopolysaccaride (LPS, 1 mg/kg) via femoral vein injection. Sham group was injected with the sterile phosphate buffer saline (PBS) in the same volume. BMSC group, in which BMSC infusion was started at 2 hours after 0.5 mL LPS stimulation (1×106/cells) through the tail vein. The survival rate was observed after 72 hours in each group. Abdominal aortic blood was collected for routine blood and biochemical examination at 72 hours after operation. Protein microarray was used to detect the related 34 inflammatory cytokines. Signal ratio was defined as the differentially expressed factors when it was more than 2.0 or less than 0.5. And enzyme linked immunosorbent assay (ELISA) was be applied to validate the significant inflammation factor. Meanwhile, the heart, kidney, intestine tissue was harvested, then their pathological changes were observed by hematoxylin eosin (HE) staining.Results 20, 12, 16 rats lived in sham group, MODS group and BMSC group respectively at 72 hours after operation. Compared with the sham group, the indicators (routine blood, liver and kidney function, myocardial enzyme) were apparently unusual, and the heart, kidney, intestine tissue were injured obviously in the MODS group. After BMSC administration, the organ function was improved and tissue damaged was alleviated significantly. Protein microarray showed that interleukin-4 (IL-4) and receptor for advanced glycation end products (RAGE) were significantly different in 34 goal cytokines. The signal ratio change of IL-4 was 0.397, 1.124, 2.826 respectively, and the signal ratio of RAGE was 6.197, 1.552, 0.250, respectively in MODS/sham group, BMSC/sham group, BMSC/MODS group. ELISA validated the result that the expression level of IL-4 decreased significantly (ng/L:3.59±1.21 vs. 29.10±5.78) and the expression level of RAGE increased significantly (ng/L: 1.09±0.04 vs. 0.11±0.03) in MODS group as compared with sham group (bothP < 0.05). Compared with the MODS group, the level of IL-4 was obviously higher than that in BMSC group (ng/L: 9.59±2.21 vs. 3.59±1.21,P < 0.01), and RAGE decreased significantly (ng/L: 0.29±0.07 vs. 1.09±0.04,P < 0.05).Conclusions BMSC administration can regulate the expression of IL-4 and RAGE in the rats subjected to MODS. Moreover, BMSC can promote the restoration of tissue and organ function, thus improve the survival rate. BMSC may be the target in cell therapy for the inflammatory disease.

OBJECTIVETo evaluate the effects of zinc and selenium on the sperm quality of oligoasthenozoospermic men.

METHODSThirty-four cases of oligoasthenozoospermia were treated with Xinxibao (Zinc & Selenium Tablet) three times a day and five tablets at a time for ninety days in succession. The seminal routine analysis was performed by computer-assisted sperm analysis (CASA) at the end of each month.

RESULTSThe sperm quality was improved significantly sixty days and ninety days after treatment. Five cases (14.7%) showed remarkable effect, 25 (73.5%) improved, and 4 (11.8%) did not respond.

CONCLUSIONZinc and selenium can significantly improve the sperm quality of oligoasthenozoospermic men.

Administration, Oral ; Adult ; Humans ; Male ; Oligospermia ; drug therapy ; Selenium ; therapeutic use ; Semen ; chemistry ; Sperm Motility ; Zinc ; therapeutic use

OBJECTIVE: To determine the mass scores of naringin and neohesperidin in Fructus aurantii and Citrus chang-shan-huyou with their processed products and evaluate the quality of Fructus aurantii and Citrus changshan-huyou with their pro-cessed products. METHODS:According to the requirements of Chinese Pharmacopoeia(2010 edition)and Zhejiang Province Tradi-tional Chinese Medicine Preparation Standards (2005 edition),the moisture and ash of F. aurantii and C. changshan-huyou with their processed products were detected. And the contents of naringin and neohesperidin were determined. The ZORBAX SB-C18 column was used with the mobile phase of acetonitrile-water(20∶80,V/V)at the flow rate of 1.0 ml/min. The detection wave-length was set at 283 nm,and the column temperature was 40℃.The samples size was 10μl. RESULTS:The moisture of F. au-rantii and C. changshan-huyou was decreased after processing with no obvious change for ash. The contents of naringin and neohes-peridin were decreased,significantly for F. aurantii,and all consistent with the requirements of Chinese Pharmacopoeia(2010 edi-tion)except F. aurantii. The linear range was 0.028 45-0.284 5μg(r=0.999 7)for naringin and 0.085 9-0.858 6μg(r=0.999 6)for neohesperidin;the RSDs of precision,stability and reproducibility tests were no more than 1.36% and the average recovery was re-spectively 96.45%-100.43%(RSD=1.45%,n=6) and 98.36%-102.00%(RSD=1.26%,n=6). CONCLUSIONS: There was no significant difference in the inspection and determination re-sults in F. aurantii and C. changshan-huyou. It is suggested to adjust the limitation of content determination in the Chinese Pharmacopoeia(2010 edition)and processed standards.

Objective:To analyze the radiotherapy-related factors affecting the survival of non-small cell lung cancer (NSCLC) patients complicated with malignant pleural effusion (MPE)(MPE-NSCLC).Methods:From 2007 to 2019, 256 patients pathologically diagnosed with MPE-NSCLC received primary treatment. Among them, 117 cases were enrolled in this study. All patients were divided into two groups according to the radiation dose (<63 Gy and≥63 Gy). Propensity score matching (PSM) was performed to further adjust the confounding factors (Calipers value=0.1). The impact of radiotherapy-related factors on the overall survival (OS) was analyzed by Kaplan—Meier method, log-rank test and Cox’s regression model. Results:Primary tumor radiotherapy significantly prolonged the OS ( P<0.001). The radiation dose escalation (36.0-44.1 Gy, 45.0-62.1 Gy, 63.0-71.1 Gy) of primary tumor significantly prolonged the OS ( P<0.001). The corresponding median OS were 5, 13 and 18 months, respectively. Before the PSM, univariate analysis suggested that radiation dose ≥63 Gy, gross tumor volume (GTV)<157.7 cm 3 and stations of metastatic lymph node (S-mlN)≤5 were significantly associated with better OS (all P<0.05) and T 4N 3 was significantly associated with worse OS ( P=0.018). After the PSM, univariate analysis indicated that radiation dose ≥63 Gy was significantly associated with better OS ( P=0.013) and S-mlN ≤5 had a tendency to prolong the OS ( P=0.098). Prior to the PSM, multivariate analysis showed that radiation dose ≥63 Gy was an independent favorable factor of OS ( HR=0.566, 95% CI 0.368-0.871, P=0.010) and GTV<157.7 cm 3 had a tendency to prolong the OS ( HR=0.679, 95% CI 0.450-1.024, P=0.065). After the PSM, multivariate analysis revealed that radiation dose ≥63 Gy was still an independent favorable factor of OS ( HR=0.547, 95% CI 0.333~0.899, P=0.017). No ≥grade 4 radiation toxicity occurred. The incidence rates of grade 3 radiation esophagitis and pneumonitis were 9.4% and 5.1%, respectively. Conclusion:For MPE-NSCLC, radiotherapy dose of primary tumor may play a key role in improving OS on the basis of controllable MPE.

Objective To describe the discovery of a residual foci of bancroftian filariasis in Fuchuan County where the disease was announced to have been eliminated, and reveal its epidemiologic feature.Methods The investigation was carried out from August 2007 to March 2008 among residents in Changtang village where the first caseof filariasiswas found and the neighboring villages.They were screened with two thick blood smears.Immunochromatographic technology(ICT) was conducted for those going out but returned and those in surrounding areas.Vector mosquitoes were collected and dissected to find filaria larvae.Historical documents were reviewed and relevant people were interviewed.Results In Changtang administrative village, 1 052 residents were screened and 19 cases with microfilaremia were found in 2 natural villages, with a Mf-positive rate of 1.8%(5.1% in Gangshang and 1.4% in Yinshan respectively).No Mf-positive case was found in 4 119 residents screened in other 3 villages.The average microfilaria density in the 19 cases was 17.37/60 ?l blood.All the 19 cases belonged to 12 families, and 13 cases were relatives to each other, which showed a feature of spatial clustering and family clustering.More patients were identified in the age groups of 20-29 and 50-59, and 57.9% of them were older than 50 years.No larvae were found in 54 Culex pipiens fatigans dissected.Conclusion The Changtang village is identified as a residual focus of bancroftian filariasis with a low, limited endemicity.More cases have been among the elderly with a low average microfilaremia.

Objective:To investigate the effects of applying Stent Boost Subtract (SBS) technique during percutaneous coronary intervention in patients with complex coronary lesions.Methods:200 patients with coronary artery disease (CAD) who hospitalized in the department of cardiology in Guangzhou First People′s Hospital from June 2018 to June 2020 were enrolled. The coronary lesions of all patients were corresponding to B2 or C type suggested by American Heart Association (AHA)/American College of Cardiology (ACC) according to coronary angiography and treated with percutaneous coronary intervention (PCI). Patients were randomly divided into SBS group ( n=82, SBS technique was applied during PCI) and IVUS group [ n=118, intravascular ultrasound (IVUS) was applied during PCI]. After stent implantation, quantitative coronary angiography (QCA) automatic analysis system was used to measure the related parameters of stent diameter (including the minimum, maximum and mean value of stent diameter) and calculate the stent eccentricity index. During PCI, stent eccentricity index, post-stent expansion, poorly positioned stent with open lesions, failure of overlapping stent with long lesions, mean cumulative dose (CD), product of total dose area (DAP), X-ray time, operation time and operation cost of each PCI were recorded in the two groups. Patients were followed up for 18 months after PCI, and the occurrence of adverse cardiovascular events (MACE) was recorded during the follow-up period, and the cumulative survival rate without MACE was compared between the two groups. Results:There were no statistically significant differences between the two groups in stent eccentricity index, proportion of guided stent expansion, proportion of poorly positioned stent with open lesions, proportion of stent failure to overlap, with statistically significant difference[(0.12±0.04) vs (0.10±0.03); 80.49% vs 85.49%; 2.44% vs 2.54%; 1.22% vs 2.54%, all P>0.05]. There were no significant differences in CD, X-ray time and DAP in SBS group compared with IVUS group [(1 394.18±42.29)Gy/cm 2 vs (1 391.82±45.06)Gy/cm 2; (18.79±3.01)min vs (18.95±3.12)min, (100.24±5.70)Gy/cm 2 vs (99.47±5.93)Gy/cm 2; all P>0.05]. The operation time in SBS group was shorter than that in IVUS group [(70.91±6.51)min vs (73.89±8.95)min, P<0.05], and the operation cost was less than that in IVUS group [(2.98±0.86)ten thousand yuan vs (3.85±0.81)ten thousand yuan, P<0.05]. After 18 months of follow-up after PCI, Kaplan-Meier survival analysis showed that there was no significant difference in MACE event-free survival between SBS group and IVUS group (91.46% vs 94.07%, Log Rank=0.480, P=0.489). Conclusions:SBS is a kind of convenient and effective technique in guiding PCI in patients with complex coronary lesions without increasing operation time and radiation dose, which can achieve the same effect as IVUS guidance.

Objective To explore the influence of continuous thermal exposure on human cognitive performance.It provides solutions for the reduction of cognitive performance caused by high temperature emergency,and reduces the misoperation problems or even safety accidents of astronauts in high temperature emergency.Methods 14 right-handed male subjects were recruited and continuously exposed to four thermal environments of 32℃,35℃,38℃,and 41℃for 150 minutes,during which 5 different cognitive tasks(Posner Cueing Task,Deary-liewald Task,N-back Task,Wisconsin Card Task,Visual Search Task)were continuously performed to obtain relative cognitive performance.At the same time,a portable 2-lead holter was used to continuously capture ECG R signals during the cognitive test.Thereafter,the heart rate variability(HRV)analysis was conducted based on the ECG data,to explore the correlations between nonlinear indices(SD1,Shannon entropy,α2,D2)and the cognitive performance.Results Tresults showed that all nonlinear indexes changed with the exposure time and exposure temperature with certain patterns.In addition,through the correlation analysis between relative cognitive performance and nonlinear indicators,the most relevant indicator is α2(correlation coefficient 0.7).The correlation analysis results showed that the nonlinear index α2 had a U-shaped relationship with relative cognitive performance(correlation coefficient was 0.7).Based on that,a quantitative relationship between α2 and relative cognitive performance was obtained.It is found that when α2 was equal to 0.98,the worst relative cognitive performance was observed.Conclusion This study showed that the HRV nonlinear index α2 could serve as a reliable indicator of the cognitive performance of human during hot exposure,which provided a potential solution for the productivity and health evaluation of astronauts.