Automatic synthesis and in vivo imaging of Al 18F-NOTA-FAPI-04 / 中华核医学与分子影像杂志

Objective:To automatically synthesize Al 18F-1, 4, 7-triazacyclononane-1, 4, 7-triacetic acid (NOTA)-fibroblast activation protein inhibitor (FAPI)-04, perform PET/CT imaging in vivo, and evaluate its diagnostic efficacy on tumors. Methods:Al 18F-NOTA-FAPI-04 was produced in All-in-one automatic synthesis module and its quality control was conducted by high performance liquid chromatography (HPLC) equipped with a radioactive detector. Al 18F-NOTA-FAPI-04 PET/CT imaging was performed in normal BALB/c mice ( n=3) and 4T1 breast cancer models ( n=3) to determine its biodistribution. Then Al 18F-NOTA-FAPI-04 and 18F-FDG PET/CT imaging were performed in a hepatocellular carcinoma patient (male, 51 years old). Results:The synthesis time of Al 18F-NOTA-FAPI-04 was about 35 min, and the radiochemical yield was (25.2±1.9)% (attenuation correction, n=3). The product was colorless transparent solution with pH value of 7.0-7.5, and the specific activity was (46.11±3.07) GBq/μmol (attenuation correction, n=3). The radiochemical purity was above 99.0% and was still above 98.0% at room temperature after 6 h. PET/CT imaging in mice showed that physiological uptake of Al 18F-NOTA-FAPI-04 was mainly in biliary system and bladder, and Al 18F-NOTA-FAPI-04 highly concentrated in tumor xenografts. PET/CT imaging in the patient showed that Al 18F-NOTA-FAPI-04 obtained high tumor background ratio (TBR) values of 4.1, 8.9, 5.4, 4.8, 2.2 in parasternal lymph nodes, anterior diaphragmatic lymph nodes, hilar lymph nodes, pancreaticoduodenal ligament lymph nodes, abdominal aortic lymph nodes, respectively, while TBR values were 1.0, 2.8, 5.0, 2.1, 1.1 by 18F-FDG. Conclusions:Al 18F-NOTA-FAPI-04 can be synthesized with short time, high radiochemical yield and good stability using All-in-one module. Al 18F-NOTA-FAPI-04 PET/CT imaging has high contrast and excellent diagnostic efficacy on tumors.

Mechanism of Danggui Niantongtang on Adjuvant Arthritis Rats with Wind-dampness-heat Arthralgia Based on Quantitative Proteomics / 中国实验方剂学杂志

ObjectiveTo explore the mechanism of Danggui Niantongtang （DGNT） against adjuvant arthritis （AA） rats with wind-dampness-heat arthralgia by quantitative proteomics. MethodSixty SD rats were randomly divided into normal group， model group， angelica came pain soup low， medium and high dose group and methotrexate （MTX） group， each group of 10， only the rat tail root subcutaneously inactivated mycobacterium tuberculosis （Mtb） of adjuvant to build model of AA， artificial climate box intervention 16 d rheumatic fever bi syndrome model is set up， building the day began to drug intervention， The intervention lasted for 28 days. The proteins of synovial tissues in experimental rats were extracted. The differential proteins in the medium-dose DGNT group and the model group were detected and analyzed by 4D label-free quantification （4D-LFQ） proteomics. The differentially expressed proteins associated with mitochondrial pathway apoptosis were verified by immunohistochemistry and Western blot. ResultA total of 4 756 proteins were identified from rat synovial tissues， of which 4 234 proteins contained quantitative information. There were 814 differential proteins between the model group and the DGNT group. As revealed by Gene Ontology （GO） and Kyoto Encyclopedia of Gene and Genome （KEGG） enrichment analyses， DGNT had an effect on the synovial proteome of AA rats with wind-dampness-heat arthralgia， and the differential proteins were enriched in the regulation of the immune system， response to acute inflammation， and apoptosis regulation. As demonstrated by the results of immunohistochemistry and Western blot， compared with the model group， the DGNT groups and the MTX group showed increased protein expression of B-cell lymphoma 2 （Bcl-2）-associated X protein （Bax） and cytochrome C （Cyt C）（P<0.05， P<0.01）， reduced Bcl-2 level （P<0.05， P<0.01）， elevated level of cleaved cysteinyl aspartate-specific protease 9 （Caspase-9）/Caspase-9 （P<0.01）， and decreased level of phosphorylated protein kinase B （p-Akt）/Akt（P<0.05， P<0.01）. ConclusionDGNT involved multiple targets in the treatment of AA with wind-dampness-heat arthralgia and it may exert its effect in the prevention and treatment by regulating the Akt/Bax/Bcl-2 pathway and promoting the cell apoptosis in the mitochondrial pathway.

Effects of Fixed-Point Lateral Flexion and Rotation Manipulation on Intervertebral Foramina Morphology of Cervical Spondylotic Radiculopathy / 医用生物力学

Objective To analyze the changes in morphology of intervertebral foramina in patients with cervical spondylotic radiculopathy (CSR) treated with fixedpoint lateral flexion and rotation manipulation based on three-dimensional (3D) reconstruction technology, so as to provide references for the effectiveness of manipulation treatment. MethodsForty patients with CSR were treated with fixed point lateral flexion and rotation manipulation once every other day for a total of 7 times and 2 weeks as a course of treatment. CT data of the patients before and after treatment were analyzed by using multifunctional CT, Mimics 21.0, Geomagic and SolidWorks 2017. The area of the intervertebral foramen, anterior and posterior diameter of the intervertebral foramen, upper and lower diameter of the intervertebral foramen were measured before and after treatment, as well as the infrared thermal imaging temperature differences of the bilateral neck and shoulder, front and back of the upper limb, and the VAS scores of the patients were observed before treatment, 7 d after treatment, 14 d after treatment and 1 month follow-up. Results Foraminal area, anterior and posterior diameters, upper and lower diameters of 40 patients were improved after treatment, and the temperature differences of infrared thermal imaging of patients before and after treatment were statistically significant. The VAS score of the patients decreased progressively. Conclusions Fixed point lateral flexion manipulation can significantly improve the shape of the intervertebral foramen in patients with CSR, so as to achieve the treatment purpose of relieving nerve compression.

The external locking compression plate combined with inferior abdominal conjoined flap for fixing open fracture and covering soft tissue defects on tibia / 中华显微外科杂志

Objective:To discuss the clinical effect about the external locking compression plate(LCP) combined with lower abdominal conjoined flap for fixing the open fracture and covering the soft tissue defects on tibia.Methods:From August 2017 to December 2020, 18 patients with serve tibial open fracture were admitted into the trauma center, including 15 males and 3 females with a median age of 38 (ranged, 25-58) years old. The etiology involving: 9 cases by traffic accident, 3 by downfall, 6 by crushing, which classified as type III B( n=6) and III C( n=12) by the Anderson-Gustilo criterion. All wounds were taken radical debridement, fixed by the femur LCP and covered by the VSD during the emergency operation. The lower abdominal conjoined flap was dissected to cover the soft tissue defect, of which the dimension and pedicle length were tailored to the defect. Primary closure was performed on the donor site. Followed-up was conducted by telephone and WeChat. Results:One flap was changed to gastrocnemius myocutaneous flap because of the venous crisis. Seventeen flaps survived completely without significant complications. All the donor and recipient sites had primary healing. A mean follow-up of 15 (ranged, 12 to 18) months. The fracture healed without bone infection and bone nonunion. The aesthetic outcomes were satisfied without overgrown hairy and hyperpigmentation for all flaps. The concealed linear scar was left without hernia or other morbidity on the donor site. At the final follow-up, 12 cases were excellent and 6 cases were good evaluated by the Johner-Wruhs criteria.Conclusion:The external LCP can immobilise the knee and ankle joint with the preservation of the soft tissue, and the free lower abdominal conjoined flap was useful for covering extreme defects with concealed donor site, with enough tissue volume. The combination of both could lower the postoperative infection, reduce the operation time and shorten the hospital stay.

Interpretation on the international consensus of the pathological diagnosis of unilateral primary aldosteronism / 中华内分泌代谢杂志

Unilateral primary aldosteronism (UPA) is a common form of PA that is surgically curable by adrenalectomy of the overactive gland. Pathological evaluation of resected adrenals is crucial in the diagnosis of UPA, and its subsequent treatment and follow-up as well. Histomorphological evaluation is the basis for the pathological diagnosis of UPA, and the wide use of aldosterone synthase immunohistochemical staining in recent years has greatly improved the pathological diagnosis of UPA. However, there is a lack of standardized nomenclature and diagnostic criteria. Therefore, consensus on the histopathologic diagnosis of UPA were developed by an international group of pathologists led by Tracy Ann Williams, and published in J Clin Endocrinol Metab, 2021. This article will elaborates on the key points in the consensus to advance the understanding and overall improve clinical mangement of UPA.

Clinical, biochemical and immunohistological characteristics in patients of aldosterone producing adenoma with different genetic mutations / 中华内分泌代谢杂志

Objective:To investigated the clinical, biochemical, and immunohistological characteristics of patients with aldosterone producing adenoma(APA)and different gene mutations.Methods:The clinical and biochemical data of 206 patients with APA who received unilateral adrenalectomy were collected. Sanger sequencing was used to identify the mutation in the hot-point of KCNJ5 and other genes. The tumor samples were stained by 11β-hydroxylase(CYP11B1)and aldosterone synthase(CYP11B2), which was quantified by McCarty′s H-score system.Results:The gene mutations were identified in 166 out of 206(80.6%)patients with APA, of which 158 cases were KCNJ5 mutation, 2 ATP1A1 mutation, 5 ATP2B3 mutation, and 1 CTNNB1 mutation. Age, duration of hypertension, and serum potassium in APA patients with genetic mutant were significantly lower than those without genetic mutation( P<0.05) while the proportion of female, systolic blood pressure, diastolic blood pressure, aldosterone/renin ratio(ARR), and plasma aldosterone concentration(PAC)post saline infusion test(SIT)were significantly higher( P<0.05). Subgroup analysis showed that age, duration of hypertension, systolic blood pressure, and proportion of left ventricular hypertrophy in APA patients with ATP1A1 and ATP2B3 mutations were significantly higher than those with KCNJ5 mutation( P<0.05)while the PAC post SIT and tumor diameter were significantly lower( P<0.05). The positive rates of CYP11B2 in APA with different mutations were not significantly different. The H-score of CYP11B1 was significantly higher [160.0(127.5, 193.5) vs 80.0(27.5, 152.3), P=0.020] and the H-score of CYP11B2 was significantly lower [155.0(123.0, 190.0) vs 240.0(140.0, 270.0), P<0.01] in APA with KCNJ5 mutation compared with those with ATPase mutation. Conclusion:The types of genetic mutation are closely correlated with the clinical, biochemical, and immunohistological phenotypes in patients with APA.

Research on clinical and thermal imaging changes in the treatment of LDH by bipolar radiofrequency combined with ozone / 国际生物医学工程杂志

Objective:To study the clinical efficacy and lower limb temperature difference of bipolar radiofrequency combined with ozone in the treatment of lumbar disc herniation(LDH).Methods:A retrospective study was conducted on 105 inpatients with LDH. All patients were treated with bipolar radiofrequency combined with ozone. The interdisc impedance of the main electrode was measured before and after treatment, and the absolute temperature difference of infrared thermal imaging of both lower extremities before and after treatment was analyzed. Vasual analogue scale (VAS) score, JOA score and modified Macnab standard were used to evaluate the curative effect after treatment.Results:The VAS score after treatment was significantly lower than that before treatment( P<0.05), and the JOA score after treatment was significantly higher than that before treatment( P<0.05). The intervertebral disc impedance after treatment was significantly lower than that before treatment( P<0.05). The temperature difference between leg and plantar after treatment was significantly lower than that before treatment (all P<0.05). Conclusions:Bipolar radiofrequency combined with ozone therapy can relieve pain and improve function in patients with LDH. Infrared thermal imaging can sensitively reflect the changes of body surface temperature of lower extremities in patients with LDH, and has a certain value in the diagnosis and curative effect evaluation of LDH.

Experimental study on the treatment of knee osteoarthritis based on oxidized graphene granule lubricant and umbilical cord mesenchymal stem cells / 国际生物医学工程杂志

Objective:To study the effects of umbilical cord mesenchymal stem cells (UCMSCs) loaded by graphene oxide (GO) on cartilage repair in two KOA animal models.Methods:30 male New Zealand rabbits aged 12 weeks were randomly divided into A group ( n=15) and B group ( n=15). In the A group, the KOA model was established by the improved Hulth and cartilage defect method, and in the B group, the KOA model was established by the modified papain controlled-release injection method. After the modeling, the rabbits model in each group were divided into 4 subgroups, including blank control group ( n=3), GO group ( n=4), UCMSCs group ( n=4) and GO+UCMSCs group ( n=4). In these subgroups, the rabbit models were respectively treated injected with 0.5 ml of NaCl solution with 9 g/L, GO granular lubricant (GO with 30 μg/ml and solvent with hyaluronic acid with 0.25%), UCMSCs suspension (5×10 6 /ml), and mixed suspension of UCMSCs loaded by GO (GO with 30 μg/ml and UCMSCs with 5×10 6/ml) in right knee joint cavity. The serum levels of NO, collagen type Ⅱ(COL-Ⅱ), glycosaminoglycan (GAG), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were measured by enzyme-linked immunosorbent assay (ELISA). Results:Eight weeks after the treatment, the serum levels of NO, IL-6 and TNF-α in GO+UCMSCs group were lower than those of the blank control group (all P<0.01), and the serum levels of COL-Ⅱ and GAG in GO+UCMSCs group were higher than those of the blank control group (all P<0.01). The serum NO level of the blank control group in group A was lower than that of the blank control group in group B [(22.097±0.352) ng/ml vs (23.662±0.056) ng/ml, P<0.05]. The serum COL-Ⅱ levels of the UCMSCs group and GO+UCMSCs group in group A were higher than those of group B respectively [(15.589±0.063) ng/ml vs (14.429±0.092) ng/ml, and (19.372±0.063) ng/ml vs (16.257±0.416) ng/ml, all P<0.01]. The serum GAG levels of the blank control group and the GO+UCMSCs group in group A were higher than those in group B respectively [(23.832±0.891) ng/ml vs (18.709±0.552) ng/ml, and (37.439±2.155) ng/ml vs (26.554±0.450) ng/ml, all P<0.01). The serum IL-6 levels of the blank control group and the GO+UCMSCs group in group A were lower than those in group B respectively [(16.082±0.323) ng/ml vs (18.367±0.861) ng/ml, P<0.05; (7.426±0.294) ng/ml vs (8.680±0.242) ng/ml, P<0.01]. The serum TNF-α levels of the blank control group and the GO+UCMSCs group in group A were lower than those in group B respectively [(9.466±0.177) ng/ml vs (10.013±0.197) ng/ml, P<0.05; (5.139±0.183) ng/ml vs (6.210±0.058) ng/ml, P<0.01]. Conclusions:GO loaded UCMSCs can promote the secretion of chondrocytes in rabbit KOA models, reduce inflammatory levels in joints, and play a role in cartilage repair.

decoction induces apoptosis by activating Fas/caspase-8 pathway in rheumatoid arthritis fibroblast-like synoviocytes / 南方医科大学学报

OBJECTIVE@#To explore the effect of decoction (DGNTD) on cell apoptosis and TNF receptor super family 6 (Fas)/caspase-8 pathway in rheumatoid arthritis (RA) fibroblast-like synoviocytes (FLS).@*METHODS@#FLS isolated from the synovial tissue of RA patients were cultured and identified using immunofluorescence staining. The cells were treated with 10% blank serum (blank control group), 10% sera containing low, moderate or high doses of DGNTD, or 20 μmol/mL KR-33493 (a Fas inhibitor) combined with 10% serum containing high-dose DGNTD. MTT assay was used to detect the proliferation of the cells after the treatments. Apoptosis of the cells was detected at 48 h in each group using Hoechst 33342 staining and flow cytometry with annexin V-FITC/PI staining. The mRNA and protein expressions of Fas, FADD, caspase-8 and caspase-3 in the cells at 48 h were detected using qPCR and Western blotting.@*RESULTS@#Immunofluorescence staining identified the cultured cells as FLS. Treatment with DGNTD-containing sera significantly inhibited the proliferation of FLS, and the inhibitory effects were enhanced as the dose and intervention time increased ( < 0.05). Hoechst 33342 staining and flow cytometry showed that the sera containing different doses of DGNTD significantly promoted apoptosis of FLS ( < 0.05). The expression levels of Fas, FADD, caspase-8, and caspase-3 at both mRNA and protein levels were significantly increased in the cells after treatment with different doses of DGNTD-containing sera ( < 0.05). The application of KR-33493 obviously reversed the effects of DGNTD on the FLS ( < 0.05).@*CONCLUSIONS@#DGNTD can induce apoptosis of the FLS by activating Fas/caspase-8 signaling pathway.

Validation of the Caprini risk model for predicting deep venous thrombosis in hospital-ized patients with malignant tumors / 中国肿瘤临床

Objective:To evaluate the effectiveness of the Caprini risk assessment model in predicting deep venous thrombosis in hos-pitalized patients with malignant tumors. Methods:Deep venous thrombosis screening was performed in 504 patients with malignant tumors who were hospitalized in Beijing Shijitan Hospital between January 2015 and January 2017. Their Caprini thrombosis risk mod-el scores and risk classifications were analyzed and compared with those of the Khorana risk model. Results:The median Caprini score of patients with deep venous thrombosis was 6 (range 4-8), which was higher than the score of 5 (range 4-7) in the group without deep venous thrombosis (Z=10.033, P=0.004). Statistically significant differences in the incidence of deep venous thrombosis were found among the low-medium, high-, and extremely high-risk groups (Z=-1.933, P=0.053). The area under the receiver-operating char-acteristic curve (AUC) of the Caprini scores was 0.611 [95% confidence interval (CI): 0.54-0.69, P=0.004], and the cutoff value was 6 points, with the largest Youden index. The AUC of the Khorana model was 0.65 (95% CI: 0.57-0.72, P<0.001), and the difference be-tween the Khorana and Caprini models was not statistically significant (Z=0.674, P=0.500). The AUC of the Caprini model was 0.85 (95% CI: 0.66-0.96, P<0.01) and that of the Khorana model was 0.68 (95% CI: 0.47-0.84, P=0.18) in the patients who underwent malig-nant tumor surgery. The AUC of the Khorana model was 0.72 (95% CI: 0.61-0.82, P=0.01) and that of the Caprini model was 0.55 (95% CI: 0.44-0.67, P=0.54) in the non-operative patients who received chemotherapy. Conclusions:The Caprini and Khorana risk assess-ment models have certain predictive values, but the discrimination is not good. The Caprini model is providing better predictability in patients with malignant tumors treated with surgery. The Khorana model is suitable for non-operative patients who received chemo-therapy. Further studies on the application of the Caprini risk assessment model in patients with malignant tumors are needed.

Correlation between obesity and colorectal adenoma / 中华消化杂志

Objective To explore the correlation between obesity and the risk of colorectal adenoma,so as to provide theoretic evidence for the intervention of the high-risk population for colorectal cancer.Methods Based on the Screen Project of Early Diagnosis and Treatment of Colorectal Cancer in Jiashan County,from August 2012 to March 2018,the results of colonoscopy and body measurement information of the high-risk population for colorectal cancer were collected.According to the results of colonoscopy,3 895 patients with colorectal adenoma and 11 232 healthy controls were enrolled.Multivariate logistic regression was used to analyze the correlation between overweight (body mass index (BMI) 24.0 to 27.9 kg/m2),obesity (BMI≥ 28.0 kg/m2) and the risk of colorectal adenoma.Results After adjusting for gender and age,compared with that of individuals with normal weight (BMI 18.5 to 23.9 kg/m2),the risk of colorectal adenoma of obese patients increased by 36％ (odds ratio (OR) =1.36,95％ confidence interval (CI) 1.18 to 1.56).After stratifing by gender,compared with that of individuals with normal weight,the risk of colorectal adenoma of obese males increased by 30％ (OR =1.30,95％ CI 1.07 to 1.59),the risk of colorectal adenoma of overweight females and obese females increased by 15％ (OR =1.15,95％ CI 1.01 to 1.31) and 40％ (OR =1.40,95％ CI 1.14 to l.71),respectively.After stratifing by age,compared with that of individuals with normal weight,the risk of colorectal adenoma of obese patients aged between 40 and 59 years increased by 31％ (OR =1.31,95％ CI 1.07 to 1.61),and the risk of colorectal adenoma of overweight and obese patients aged between 60 and 74 years increased by 13％ (OR=1.13,95％CI 1.01 to 1.27) and 39％ (OR=1.39,95％ CI 1.15 to 1.70),respectively.The results of subgroup analysis according to pathological types indicated that the risk of non-advanced adenoma and advanced adenoma of obese patients increased by 35％ (OR =1.35,95％CI 1.16 to 1.57) and 39％ (OR=1.39,95％CI 1.06 to 1.83),respectively.Conclusions Obesity is correlated with colorectal adenoma,which is more significant in women,individuals aged between 60 and 74 years and advanced adenoma.The intervention of high-risk population for colorectal cancer should include body mass control.

Application of CYP11B2 immunohistochemistry in the histopathological diagnosis of primary aldosteronism / 中华内分泌代谢杂志

Objective@#To evaluate the value of CYP11B2 immunohistochemistry in the histopathological diagnosis of primary aldosteronism(PA) among Chinese population.@*Methods@#Ninety-six cases of unilateral PA patients were retrospectively enrolled, and with 15 cases of non-hyperfunctioning adenoma, and 15 cases of cortisol producing adenoma as control. CYP11B2 immunohistochemistry was performed in the tumor sections of these patients and was analysed by semi-quantified method. The positive rate of CYP11B2 in tumor specimen of all cases enrolled was calculated and PA patients were subtypely classified based on their histopathological features and CYP11B2 expressions.@*Results@#The immune-positive rate of CYP11B2 in the PA group was 91.7% (88/96), with the control group being 6.7% (2/30, P<0.001). Subgroup analysis revealed that the immune-positive rate of CYP11B2 in the aldosterone producing adenoma group and unilateral hyperplasia group were 91.8% (78/85) and 90.9% (10/11), respectively. Based upon histopathological feature and CYP11B2 immunohistochemistry, PA patients were further subtypely classified as aldosterone producing adenoma (85/96), unilateral diffuse adrenocortical hyperplasia (7/96), unilateral mono-adrenocortical micronodules (1/96), unilateral multiple adrenocortical micronodules (1/96), and unilateral multiple aldosterone-producing cell clusters (multiple APCCs, 2/96).@*Conclusion@#CYP11B2 immunohistochemistry may serve as an useful tool for the histopathological diagnosis of PA.

Correlation between obesity and colorectal adenoma / 中华消化杂志

Objective@#To explore the correlation between obesity and the risk of colorectal adenoma, so as to provide theoretic evidence for the intervention of the high-risk population for colorectal cancer.@*Methods@#Based on the Screen Project of Early Diagnosis and Treatment of Colorectal Cancer in Jiashan County, from August 2012 to March 2018, the results of colonoscopy and body measurement information of the high-risk population for colorectal cancer were collected. According to the results of colonoscopy, 3 895 patients with colorectal adenoma and 11 232 healthy controls were enrolled. Multivariate logistic regression was used to analyze the correlation between overweight (body mass index (BMI) 24.0 to 27.9 kg/m2), obesity (BMI≥28.0 kg/m2) and the risk of colorectal adenoma.@*Results@#After adjusting for gender and age, compared with that of individuals with normal weight (BMI 18.5 to 23.9 kg/m2), the risk of colorectal adenoma of obese patients increased by 36% (odds ratio (OR)=1.36, 95% confidence interval (CI) 1.18 to 1.56). After stratifing by gender, compared with that of individuals with normal weight, the risk of colorectal adenoma of obese males increased by 30% (OR=1.30, 95%CI 1.07 to 1.59), the risk of colorectal adenoma of overweight females and obese females increased by 15% (OR=1.15, 95%CI 1.01 to 1.31) and 40% (OR=1.40, 95%CI 1.14 to 1.71), respectively. After stratifing by age, compared with that of individuals with normal weight, the risk of colorectal adenoma of obese patients aged between 40 and 59 years increased by 31% (OR=1.31, 95%CI 1.07 to 1.61), and the risk of colorectal adenoma of overweight and obese patients aged between 60 and 74 years increased by 13% (OR=1.13, 95%CI 1.01 to 1.27) and 39% (OR=1.39, 95%CI 1.15 to 1.70), respectively. The results of subgroup analysis according to pathological types indicated that the risk of non-advanced adenoma and advanced adenoma of obese patients increased by 35% (OR=1.35, 95%CI 1.16 to 1.57) and 39% (OR=1.39, 95%CI 1.06 to 1.83), respectively.@*Conclusions@#Obesity is correlated with colorectal adenoma, which is more significant in women, individuals aged between 60 and 74 years and advanced adenoma. The intervention of high-risk population for colorectal cancer should include body mass control.

Clinical observation on the treatment of cervical spondylotic radiculopathy by the pulsed radiofrequency combined with the fixed-point lateral flexion and rotation realignment cervical manipulation / 国际生物医学工程杂志

Objective To observe the clinical efficacy of pulsed radiofrequency combined with fixed-point lateral flexion and rotation realignment cervical manipulation in the treatment of cervical spondylotic radiculopathy (CSR). Methods Sixty-three patients with CSR were randomly divided into observation group (n=32) and control group (n=31). The observation group was given pulse radiofrequency combined with fixed-point lateral flexion and rotation realignment cervical manipulation, and the control group was given the pulsed radiofrequency treatment. Visual analog scale (VAS) and Japanese Orthopaedic Association (JOA) scores were obtained before the treatment, 7 days and 3 months after the treatment. The temperature differences of bilateral upper limbs infrared thermal imaging were observed before and 3 months after the treatment in the two groups. The clinical efficacy of the two groups was evaluated by using TCM disease and syndrome diagnosis criteria. Results After 7 days and 3 months of the treatment, the VAS scores of the two groups were lower than those before treatments, the VAS scores of the observation group were lower than the control group, and all the differences were statistically significant (all P<0.05). The JOA scores in the two groups were higher than those before treatment, the JOA scores of the observation group were higher than the control group , and the differences were statistically significant (all P<0.05). There was no statistically significant difference in the infrared temperature difference between the upper limbs of the observation group and the control group before treatments [(0.83±0.27) °C vs (0.87±0.29) °C, P>0.05]. Three months after the treatment, the temperature difference of infrared thermography in the upper limbs of the observation group was better than that of the control group (P<0.05), and the cure rate of the observation group was better than that of the control group, and the difference was statistically significant (68.75％vs 22.58％, P<0.05). There was no statistically significant difference in the total effective rate between the two groups (93.75％vs 90.32％, P>0.05). Conclusions The pulsed radiofrequency combined with the fixed-point lateral flexion and rotation realignment cervical manipulation in the treatment of radiculopathic cervical spondylosis was effective in improving pain, function and infrared imaging temperature of upper limbs.

Research progress of the biomechanics in the rotational manipulation treatment of cervical spondylotic radiculopathy / 国际生物医学工程杂志

Cervical spondylotic radiculopathy is a common and frequently-occurring disease in the clinical department of orthopedics.It has the highest incidence of cervical spondylosis and has been classified as a difficult disease by the World Health Organization.Cervical spondylotic radiculopathy mainly manifests as root symptoms and signs consistent with the diseased segment,and the symptoms of stiffness,pain and numbness,which seriously affect the physical and mental health and life quality of patients.In clinical practice,the symptoms of cervical spondylotic radiculopathy can be alleviated by physical therapy,acupuncture,etc.Therefore,searching for more effective treatments has become a hot topic of current researches.Manipulations have the advantages of simple operation,quickness,quick effect and high recognition degree,and can achieve therapeutic purpose by improving the dynamic and static balance of cervical spines,correcting joint dislocation and improving blood circulation.Among them,the curative effect of rotational manipulations is more remarkable.The researches on rotational manipulations by domestic and foreign scholars mainly focus on the in vitro and in vivo biomechanics of cervical spines,and the biomechanical researches on the rotational manipulation itself were different.At present,the mechanical research on the rotational manipulation is still in the development stage,and there is no clear conclusion on the similarities and differences of the mechanical parameters and their influence on the mechanical environment of the cervical spine.In this paper,the research progress of biomechanical properties of cervical spine rotational manipulation was summarized to provide a theoretical basis for the mechanism of the rotational manipulation treatment of cervical spondylotic radiculopathy.

Clinical evaluation of the efficacy of radiofrequency combined with ozone in the treatment of lumbar disc herniation using infrared thermography / 国际生物医学工程杂志

Objective To evaluate the efficacy of radiofrcquency combined with ozone in the treatment of lumbar disc herniation using infrared thermography,and discuss the application value.Methods A total of 160 patients with lumbar disc herniation were randomly divided into observation group (80 cases) and control group (80 cases).The observation group was treated with continuous radiofrequency combined with ozone injection,and the control group was treated with pulse radiofrequency combined with ozone injection.Pain visual analogue (VAS) score,Oswestry dysfunction index (ODI) score,and Japanese Orthopaedic Association (JOA) score of the patients were compared before and 1 and 3 months after the treatment.The mean temperature and temperature difference of the lower body were compared by infrared thermography before and 3 months after the treatments.The overall clinical efficacy was evaluated 3 months after the treatments using the modified Macnab criteria.Results The comparison within groups showed that the VAS,ODI and JOA scores were significant changed after 1 and 3 months of the treatment (all P＜0.05).The average temperature of lower body from the infrared thermography was decreased after 3 months of the treatment (P＜0.05).The comparison among groups showed that the VAS,ODI and JOA scores after 1 and 3 months of the treatment had differences between the observation group and the control group,and all the differences were statistically significant (all P＜0.05).Moreover,the difference in the mean temperature of the low body after 3 months of the treatment was not statistically significant (P＞0.05),and in the temperature difference value was statistically significant between the two groups (P＜0.05).The overall clinical efficacy of the observation group was better than that of the control group after 3 months of the treatment (P＜0.05).Conclusions Radiofrequency combined with ozone injection is satisfactory for the treatment of lumbar disc herniation,and the continuous radiofrequency is superior to pulse radiofrequency.The clinical efficacy of radio-frequency combined with ozone injection can be effectively evaluated by Infrared thermography.

Prevalence and Phylogenetic Analyses of Trichuris suis in Pigs in Hunan Province, Subtropical China

Trichuris suis infection in pigs is ubiquitous in intensive and extensive farms, which causes potential threat to human health. The objective of this research was to investigate the prevalence of T. suis in pigs in Hunan province. Total 2,267 fresh fecal samples distributed in 28 pig farms from 7 different administrative regions (Hunan province) were evaluated for the existence of T. suis eggs using saturated NaCl floating method. The average infection rate of T. suis in pigs was 8.91% in Hunan province. To determine genetic variation of the gained T. suis isolates in the present study, the internal transcribed spacer (ITS) regions from nuclear ribosomal DNA (rDNA) of 7 T. suis isolates were cloned and analyzed. Nucleotide diversities were 1.0–3.5% and 0–3.8% for ITS-1 and ITS-2, respectively. Phylogenetic analyses indicated that all isolates collected in the present study and T. suis available in Genbank generated a monophyletic clade. The present investigation revealed high infection rates of T. suis in pigs in Hunan province, which shed light on making effective measures to prevent and control T. suis infection in pigs in Hunan province.

Treatment strategies of complex lesions in patients with acute Stanford type A dissection of important branches involvement / 中华外科杂志

Acute Stanford type A aortic dissection with important branches involved is more complex, could lead to organ malperfusion syndrome even organ failure. The understanding of pathological anatomy, classification, staging, and the pathophysiological change has increasingly mature, but not complete. In addition, the treatment strategy for complex lesions is diversified, some questions may not reach consensus. Fully understanding of the anatomical and pathophysiology is very important for surgeons to choose reasonable treatment strategy. As the rapid development of the basic research, imaging techniques and the concept of surgery procedures, the manage technique of Stanfrod type A dissection and branch vessels at the same time is getting seriously, the related issues also need further discussions.

Analysis of Electrochemical Performances of Different Mesoporous Manganese Dioxide Materials by Quartz Crystal Microbalance / 分析化学

The mesoporous manganese dioxide (MnO2) materials were synthesized by the calcinations of manganese carbonate (MnCO3) precursors in air atmosphere at 300, 350 and 400℃. The slurries of MnO2 and binder were sprayed on the quartz electrodes. Quartz crystal microbalance (QCM) was conducted with cyclic voltammetry to analyze the electrochemical behaviors of the three MnO2 samples in 0.1 mol/L sodium sulfate (Na2SO4). The mass of the three samples were generally increased during potential cycling, especially in the first stage, which suggested that an irreversible reaction process occurred. The as-synthesized MnO2 at 300℃ had the better electrochemical stability and capacity retentivity. The three materials were assembled to (-) active carbon/MnO2 (+) supercapacitors and the charge-discharge tests were conducted. The results showed that 35％-40％ capacity loss was occurred in the initial cycling, and the total discharge capacities of MnO2 formed at 300℃, 350℃, 400℃ were 15.9, 12.9, 11.7 mA h/g, respectively. The detection results of QCM method were consistent with that of the charge-discharge tests, suggesting that this QCM method could be used for distinguishing the electrochemical performance of mesoporous MnO2 materials.

Application of medical equipment quality control and measurement management system / 中国医学装备

Objective:To promote hospital medicalmetrology and quality control management. by using information management mode.Methods: Through the analysis of our hospital medical equipment measurement and quality control management present situation, put forward the necessity of metrology and quality control management of Xinxi sanitary equipment,introduces the application situation of our hospital dynamic health equipment metrology and quality control management system.Results: The medical equipment metrology and quality control management system perfect the medical equipment measurement and quality control of management process, improve the qualified rate of equipment.Conclusion:Application of sanitary equipment measurement and quality control management platform to improve the delivery rate of equipment, ensure the equipment unqualified clinical use.