Objective:To analyze the effect of precipitation on road traffic injuries (RTI) in Zhejiang Province.Methods:The RTI surveillance and meteorological data from 2009 to 2022 in Zhejiang Province were collected. Based on the time-stratified case-crossover design, the precipitation of case day and control day was compared, and the distributed lag nonlinear model was applied to analyze the correlation of precipitation and RTI. Stratified analyses were conducted to analyze the effect modification of gender, age, injury location, and temperature. An attributable fraction was used to assess the burden of RTI caused by precipitation.Results:A total of 239 970 RTIs were monitored in Zhejiang Province from 2009 to 2022, averaging 46 daily cases. The distributed lag nonlinear model showed that compared with no rain, the risk of RTI increased first and then decreased with the increase of precipitation. The risk of RTI was the highest when the precipitation was 30.99 mm ( OR=1.08, 95% CI: 1.05-1.11). The adverse effects on RTI mainly occurred on the day of precipitation, and it showed insignificant or protective effects with the extension of lag days. 1.34%(95% CI: 1.31%-1.36%) of RTI could be attributed to precipitation. Stratified analysis showed that gender, age, injury location, and temperature may modify the effect of precipitation on RTI. Precipitation caused a heavier burden on RTI in subgroups aged 18-64, females, and occurring on roads and in low temperatures. Conclusions:Precipitation can increase the risk of RTI. People aged 18-64 or females are the key groups for RTI prevention, and prevention and control efforts of precipitation-related RTI should be increased in road and low-temperature environments.

Objective:To analyze the effect of precipitation on road traffic injuries (RTI) in Zhejiang Province.Methods:The RTI surveillance and meteorological data from 2009 to 2022 in Zhejiang Province were collected. Based on the time-stratified case-crossover design, the precipitation of case day and control day was compared, and the distributed lag nonlinear model was applied to analyze the correlation of precipitation and RTI. Stratified analyses were conducted to analyze the effect modification of gender, age, injury location, and temperature. An attributable fraction was used to assess the burden of RTI caused by precipitation.Results:A total of 239 970 RTIs were monitored in Zhejiang Province from 2009 to 2022, averaging 46 daily cases. The distributed lag nonlinear model showed that compared with no rain, the risk of RTI increased first and then decreased with the increase of precipitation. The risk of RTI was the highest when the precipitation was 30.99 mm ( OR=1.08, 95% CI: 1.05-1.11). The adverse effects on RTI mainly occurred on the day of precipitation, and it showed insignificant or protective effects with the extension of lag days. 1.34%(95% CI: 1.31%-1.36%) of RTI could be attributed to precipitation. Stratified analysis showed that gender, age, injury location, and temperature may modify the effect of precipitation on RTI. Precipitation caused a heavier burden on RTI in subgroups aged 18-64, females, and occurring on roads and in low temperatures. Conclusions:Precipitation can increase the risk of RTI. People aged 18-64 or females are the key groups for RTI prevention, and prevention and control efforts of precipitation-related RTI should be increased in road and low-temperature environments.

OBJECTIVE: To investigate the role of nuclear factor erythroid-2-related factor 2(NRF2) signaling pathway in trichloroethylene(TCE) induced oxidative stress in human liver cancer HepG2 cells. METHODS: HepG2 cells in the exponential growth phase were randomly divided into control group and low-, medium-and high-dose groups, and the cells were stimulated with TCE at the final concentrations of 0, 2, 4 or 8 mmol/L respectively for 24 hours. After TCE exposure, the cells were collected. The activity of superoxide dismutase(SOD) was measured by 2-(2-methoxy-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulphenyl)-2 h-tetrazole monosodium salt method.The activities of catalase(CAT) and glutathione peroxidase(GSH-Px) were detected by enzymatic method. The level of malondialdehyde(MDA) was detected by thiobarbituric acid method. The level of 8-hydroxydeoxyguanosine(8-OHDG) was detected by enzyme-linked immunosorbent assay. The mRNA expression of NRF2, heme oxygenase(HO1), glutamate-cysteine ligase catalytic subunit(GCLC), NAD(P) quinone oxidoreductase 1(NQO1) were detected by real-time polymerase chain reaction and the protein expression of NRF2, HO1, GCLC, NQO1 were detected by Western blotting. RESULTS: The activity of CAT in HepG2 cells decreased in the 3 doses drug exposure groups(all P<0.05). The activity of GSH-Px increased(all P<0.05), while the level of MDA in HepG2 cells decreased in low-dose group compared with the control group(P<0.05). There was no statistical significance in SOD activity and 8-OHDG level of HepG2 cells among these 4 groups(all P>0.05). The mRNA and protein relative expression of NRF2 and GCLC in HepG2 cells decreased in the low-and medium-dose groups(all P<0.05) compared with the control group. The mRNA relative expression of HO1 decreased(all P<0.05). The HO1 protein relative expression of HepG2 cells increased in low-dose group compared with the control group(P<0.05). The mRNA and protein relative expression of NQO1 in low-dose group increased(both P<0.05). The protein relative expression of HO1 in HepG2 cells in medium-dose group was lower than that in control group(P<0.05).The mRNA and protein relative expression levels of NRF2 and NQO1 increased in HepG2 cells of high-dose group(all P<0.05) and the mRNA relative expression of HO1 increased in HepG2 cells of high-dose group(all P<0.05) compared with the other 3 groups. CONCLUSION: The low and medium dose TCE stimulation can cause oxidative stress in HepG2 cells and decrease the antioxidant enzyme activity. The high dose TCE stimulation to HepG2 cells can activate NRF2 signaling pathway, thus upregulating the expression of downstream antioxidant enzymes HO1, GCLC and NQO1, and relieving the oxidative damage caused by TCE.

Objective To explore the applications of standardized patients teaching method in clin-ical practice teaching effect for students majoring in rehabilitation therapy in the course of occupation therapy. Methods The 2013 classes of rehabilitation therapy specialty in our college were selected as the subjects of study in the two groups. Group 1 was taught by the traditional teaching method, while group 2 was taught by the standardized patients (SP) teaching method. After learning, we made an analysis of two groups through the form of theory questions, practical operation and the questionnaire to assess the teaching efficacy. Measurement data using two sample mean t-test after SPSS 13.0 software for statistical analysis. Results The scores of skills test and questionnaire in students taught by SP teaching method is signifi-cantly higher than those in students taught by traditional teaching method (P<0.05). In the theoretical exami-nation, the SP teaching group outperformed the traditional teaching group, but the difference was not statis-tically significant. Conclusion In occupation therapy application, SP teaching is superior to traditional teaching in improving students' ability of analysis and judgment, operation skill and communication level, which can be extended to other clinical courses of rehabilitation therapy.

Objective To observe the clinical efficacy of acupuncture plus auricular point sticking in treating polycystic ovary syndrome (PCOS). Method A total of 80 PCOS patients were randomly divided into a treatment group of 40 cases and a control group of 40 cases. The treatment group was intervened by acupuncture plus auricular point sticking, while the control group was intervened by acupuncture only. The clinical efficacy was observed in the two groups after 3 treatment courses. Result The menstrual condition and basal body temperature (BBT) were compared in the two groups before and after the treatment. The menstrual condition and BBT in the treatment group were significantly improved (P<0.01); the menstrual condition was improved (P<0.05) and the BBT condition was significantly improved in the control group (P<0.01). The total effective rate was 82.5% in the treatment group, significantly different from that in the control group (P<0.05). Conclusion Acupuncture plus auricular point sticking can produce a satisfactory efficacy in treating PCOS.

Objective To investigate the clinical efficacy of auricular point therapy for chronic fatigue syndrome.Methods Eighty patients with chronic fatigue syndrome were randomly allocated to treatment and control groups, 40 cases each. The treatment group received ear acupuncture plus auricular plaster therapy and the control group, conventional acupuncture. The overall symptom was scored, the Fatigue Assessment Instrument (FAI) score was recorded and immunoglobulins (IgA, IgG and IgM) were measured in the two groups before treatment and after four courses.Results There were statistically significant pre-/post-treatment differences in the overall symptom score, the FAI score and immunoglobulins in the two groups (P<0.05). There were statistically significant post-treatment differences in the FAI score, and IgA and IgG between the treatment and control groups (P<0.05). Conclusion Auricular point therapy is an effective way to treat chronic fatigue syndrome.

Objective To discuss the methods and effects of arthroscopic treatment of posterior and anterior ankle impingement syndrome through anterior approach,tarsal sinus approach plus posterolateral approach.Methods The study enrolled 12 patients with posterior and anterior ankle impingement syndrome treated from January 2012 to March 2014.There were 8 males and 4 females,agedl7-65 years (mean,45 years).Left ankle injury was noted in 9 patients and right ankle injury in 3 patients.Eight patients had a history of obvious ankle injury (5 acute and 3 chronic sprains).Arthroscopic surgery was performed to manage the posterior and anterior ankle impingement syndrome through the combined anterior,tarsal sinus and posterolateral approaches,and prone position and posteromedial incision were not used during operation.Postoperative outcome was evaluated using the American Orthopedic Foot and Ankle Society (AOFAS) score.Results Operation time was 45-80 min (mean,62 min).Arthroscopy confirmed anterior bone impingement in all patients.Three patients suffered from posterior bony impingement of the talus,while nine patients os trigonum injury.Duration of follow-up was 10-18 months (mean,14 months).AOFAS score was (91.4-± 6.5) points after operation,significantly higher (34.4 ± 12.6) points before operation (t =14.607,P ＜0.01).All patients had normal ankle range of motion after operation.There were no complications such as neurovascular injury.All the surgical incisions achieved primary healing.Conclusion The procedure avoids body position shift and posteromedial incision during operation,and attains a good vision to the anterior and posterior portions and satisfactory short-term outcome.

Objective To investigate the results of FasT-Fix technique in repair of degree Ⅲ horizontal meniscus tears.Methods From June 2010 through June 2013,12 patients with degree Ⅲ horizontal meniscus tears underwent arthroscopic vertical mattress suture using the FasT-Fix technique.There were 7 males and 5 females at mean age of 34.7 years.All the patients were diagnosed with combined anterior cruciate ligament (ACL) rupture with preoperative Lysholm score of (64.9 ± 9.4)points.Arthroscopic meniscus repair was performed prior to ACL reconstruction.A second-look arthroscopy examined the healing status of the meniscus at 6 to 18 months postoperatively (mean,12 months).Lysholm score was evaluated during outpatient follow-up.Results All the patients were available to the follow-up of 26 months (range,12-36 months).Second-look arthroscopy showed complete healing in 9 patients and incomplete healing in 3 patients.At final follow-up,Lysholm score was (93.4 ± 5.0) points.Conclusion FasT-Fix technique can repair degree Ⅲ horizontal meniscus tears with vertical mattress sutures and reconstruct ACL,which has advantages of allowing maximal preservation of the horizontally torn meniscus,minor trauma,easy operation and definite efficacy.

INTRODUCTION: This technical note describes a new arthroscopic technique to repair the peripheral attachment lesion of the posterior horn of the medial meniscus. The operation was performed under arthroscopy using a standard anterior portal. SURGICAL TECHNIQUE: A FasT-Fix needle was inserted obliquely close to the tibial plateau and the first implant was inserted into the joint capsule depending on its bending angle underneath the meniscus. The second implant was inserted through 1/3 periphery of the meniscus into the meniscocapsular area. The pre-tied self-sliding knot was tensioned to achieve secure fixation of the posterior meniscal peripheral attachment at the original attachment point. MATERIALS AND METHODS: From August 2011 to February 2014, 23 knees were diagnosed as ramp lesion, underwent meniscal repair using FasT-Fix technique. RESULTS: All patients were followed up for average 14 months. The Lysholm score improved from preoperative 64.4+/-4.52 to postoperative 91.2+/-4.60. CONCLUSIONS: We believe that the FasT-Fix technique via the standard anterior portal can be a more convenient and less traumatic alternative for repair of the peripheral attachment lesion of the posterior horn of the medial meniscus in the anterior cruciate ligament deficient knee.
Animals ; Anterior Cruciate Ligament ; Architectural Accessibility ; Arthroscopy ; Horns ; Humans ; Joint Capsule ; Knee ; Menisci, Tibial ; Needles

Objective To evaluate the mid-term results of arthroscopic anterior cruciate ligament (ACL) reconstruction using Transfix technique.Methods From August 2002 to December 2003,38 patients (24 left knees and 14 right knees) with ACL ruptures underwent arthroscopic ACL reconstruction with hamstring tendon using Transfix femoral fixation and interference screws tibial fixation.There were 21 males and 17 females,aged from 19 to 48 years (average,28.4 years).The causes of injury included sports injury in 27 cases,traffic injury in 2 cases and fall injury in 2 cases,and 7 patients had no significant injury.There were 6 cases of acute injury and 32 cases of old injury.Anterior drawer test was positive in 35 cases,weak positive in 1 case and negative in 2 cases.Lachman test was positive in 37 cases,and weak positive in 1 case.The Lysholm score was used to evaluate the results.Moreover,X-rays and MRIs were used to observe the conditions of graft and bone tunnel.Results Thirty-six patients were followed up for 6.3 to 7.6 years (average,6.8 years).All patients had normal joint range of motion.The Lysholm score improved from preoperative 64.4±4.52 to postoperative 85.6±4.60,and the difference was statistically significant (P ＜ 0.05).The X-rays and MRIs showed femoral and tibial tunnel enlargement in 3 cases,femoral tunnel enlargement in 5 cases and tibial tunnel enlargement in 3 cases.No joint space narrowing was found in all patients.One patient underwent arthroscopic revision ACL reconstruction with allograft tendon using bioabsorbable interference screws fixation on both tibial and femoral sides for re-rupture of ACL 4 years after operation due to trauma.Conclusion Arthroscopic ACL reconstruction with hamstring tendon using Transfix femoral fixation and interference screws tibial fixation is an effective method,which can provide satisfactory joint range of motion and stability.