ObjectiveTo introduce a new side-incision thyroidectomy for huge thyroid nodules. MethodsFrom Oct. 2008 to Dec. 2009, 30 patients with huge thyroid nodules ( diameter ＞ 6 cm) were performed side-incision thyroidectomy, among whom 4 cases were treated with the combined therapy of side-incision surgery and midline-incision surgery. ResultsNo injury of major vessels, recurrent laryngeal nerves or superior laryngeal nerves occurred. 2 cases in side-incision group had transient convulsion of hands and feet. No permanent hypocalcemia or infection occurred. ConclusionsCompared with traditional midline-incision thyroidectomy, sideincision thyroidectomy has better surgical exposure and no need to amputate the strap muscle. Side-incision thyroidectomy is an ideal surgical approach for huge thyroid nodules.

Objective To compare the difficult degree,differences in gastric pouch volume,the complications,and postoperative weight loss effect of two gastric pouch practices in laparoscopic gastric bypass for bariatrics.Methods We retrospectively analyzed laparoscopic gastric bypass surgery in 76 bariatrics cases from May 2010 to May 2012.Two methods were used to create gastric pouch,among which 39 cases were operated with the dissection landmark method (called dissection),and 37 cases with bougie airbags 30 ml (called the bougie).Parameters were compared between the 2 groups including operation time for gastric pouch,the amount of staple cartridges,intraoperative complications,blood loss,and postoperative excess weight loss percentage (EWL ％),the postoperative bleeding,obstruction,fistula and other complications.Results All patients were followed up for more than one month.The dissection group used longer time in creating gastric pouch than that in the bougie group [(58 ± 27) min,(42 ±21) min,P ＜ 0.01].The number of staple cartridges used were significantly different between the two groups [(6.2 ±3.0),(4.3 ± 2.0),P ＜ 0.01].There were 10 cases of complications in the dissection group (26％),and 3 cases in the bougie group (8％) (P ＜0.05).One month after the surgery,one each patient had transient hematochezia.There was no gastric pouch-related complications in the two groups postoperation.There was no difference in excess weight loss (P ＞ 0.05).Conclusions The two methods can achieve the same effect on excess weight loss.The bougie method used less time in creating the gastric pouch,less consumable materials,and less complications occurred in creating gastric pouch.

Objective:To explore the DNA methylation patterns and methylation differential genes of patients with coal-burning-borne endemic fluorosis, and to provide a basis for study of the pathogenesis of fluoride-induced body injury.Methods:A case-control study was conducted in Shuicheng County, Liupanshui, Guizhou Province, ten patients with severe fluorosis were selected as the fluorosis group in Douqing Township, where people burning high fluorine coal in open range all year round; and ten people without fluorosis phenotype were selected as the control group in Huaga Township, where firewood was the main fuel. Peripheral blood samples were collected from the two groups of people. Reduced representation bisulfite sequencing (RRBS) technique was used to detect the whole genome DNA methylation pattern ( n = 4) and DNA differentially methylated region (DMR), the DMR differential degree (log 2Ratio) and KEGG pathway enrichment analysis were used to screen the methylation differential genes, and real-time PCR was used to verify the mRNA expression levels of the candidate methylation differential genes( n = 10). Results:The methylation pattern analysis results showed that the methylation levels of all C bases in the genome DNA of the fluorosis group and the control group were (61.53 ± 0.59)% and (62.48 ± 1.53)%, respectively; among them, the methylated levels at CG sites were (63.75 ± 0.65)%, (64.36 ± 1.01)%, at CHG sites were (13.79 ± 0.72)%, (16.69 ± 4.06)%, and at CHH sites were (25.12 ± 1.72)%, (29.77 ± 3.97)%. Compared with the control group, patients in the fluorosis group had 1 000 DMR distributed on different autosomes; and the chromosome 19 was the most with 104 segments. There were 978 DMR-related genes, including 265 hypermethylation genes and 713 hypomethylation genes; KEGG pathway enrichment analysis showed that methylation differential genes were mainly involved in cell metabolism, cancers, and phosphatidylinositol 3-kinase-protein kinase B (PI3K-AKT) and other signaling pathways; combined with the differential degree of DMR, the hypermethylated succinate dehydrogenase complex flavoprotein subunit A pseudogene 3 (SDHAP3, log 2Ratio = 3.487) and hypomethylated nuclear factor κB inhibitor kinase regulatory subunit γ (IKBKG, log 2Ratio =-4.436) were selected as the candidate genes. There were statistically significant differences in the mRNA expression levels of SDHAP3 (0.54 ± 0.08, 1.00 ± 0.00) and IKBKG (1.32 ± 0.39, 1.00 ± 0.00) between fluorosis group and control group ( F = 22.94, 15.09, P < 0.01 or < 0.05). Conclusion:There are a large number of methylation differential genes in the genomes of patients with coal-burning-borne endemic fluorosis and controls, the hypermethylated SDHAP3 and hypomethylated IKBKG may be involved in fluoride induced body injury.

Objective To evaluate the clinical diagnostic value of nucleic acid amplification (TB- RNA),bacteriophage-based assay,3D culture and smear on the detection of Mycobacteria tuberculosis.Methods 291 clinical sample including 110 sputum,54 thoracic fluid,37 throat swab,31 bronchial fluid,13 cerebrospinal fluid,12 urine,8 lymph fluid and 20 others (pericardial effusion,feces, blood and abdominal fluid) and gynecological specimen (including 6 leucorrhoea and menstrual blood) were analyzed by these four methods.Results Among the 291 clinical samples,the positive rate of mycobacteria tuberculosis for TB-RNA,bacteriophage-based assay,3D culture and smear were 37.1%,28.9%,27.5% and 10.3%.The sensitivity and specificity of the TB-RNA,bacteriophage-based assay,3D culture and smear were 54.3% & 100%,41.7% & 88.9%,31.7% & 93.5% and 14.6% & 98.9%,respectively.Conclusions TB-RNA is an effective clinical diagnostic method for Mycobacteria tuberculosis.Although the sensitivity of smear is poorer than others,it is a universal testing method in clinical laboratory due to low cost.The positive rate of mycobacteria tuberculosis for 3D culture is lower than that of bacteriophage-based assay and TB-RNA.Although the time to result for 3D culture might last for few weeks,the isolates can be used for drug resistance screening and bacterial identification.

Objective To investigate the expression of MRP1/CD9 protein in human hepatocellular carcinoma (HCC),and its relationship to carcinoma invasion and metastasis. Methods The specimens of tissue microarray from 152 primary hepatocellular carcinomas with paracancerous liver tissue, 22 tumor emboli , 4 intrahepatic satellite metastases, 17 extrahepatic metastases ,and 5 normal livers, respectively, were constructed and used for detection of MRP1/CD9 expression by immunohistochemistry. Results Immunohistochemical analysis of tissue microarrays demonstrated MRP1/CD9 protein expression in 27.0%(41/152)of the primary HCCs. The expression of MRP1/CD9 protein was higher in HCCs without cancer thrombi than in those with cancer thrombi (40.48%vs21.82%,P10cm, P20?g/L, P=0.029). Conclusions Loss of MRP1/CD9 protein expression may be associated with invasion and metastases of hepatocellular carcinoma.

Objective:To present the surgical technique and to evaluate the results of the modified ar-throscopic Latarjet procedure.Methods: Arthroscopic Latarjet procedure has proven to be a reliable method of treatment for difficult anteroinferior instability of the shoulder joint.However, there is no ante-rior capsule reattachment and too much subscapularis damage for the classic procedure.From February 2013 , we modified the classic procedure with reattachment of anterior joint capsule and muscle-tendon junction splitting of subscapularis.Coracoid graft position was evaluated using CT scanning.Results:From March 2012 to August 2014, 51 modified Latarjet procedures were successfully performed arthro-scopically for patients with anterior shoulder instability.According to the CT scanning at the final follow up, the graft was flush with the glenoid in 94.1%, and medially placed in 5.9%.Vertical positioning was perfect in 96.0%(2 to 5 o’clock), too high in 2.0%, and too low in 2.0%.There were no cases of recurrent dislocation or subluxation.Conclusion: The modified arthroscopic Latarjet procedure has shown satisfactory results with good graft positioning.It is a minimal invasive and accurate approach, which combines the advantages of the open procedure.

Objective To investigate the expression of extraeellular signal-regulated protein kinase (ERK1/2)pathway in rat brains with fluorosis and the effects of fluoride on learning and memory of the rats,and to reveal the mechanisms of damaged nervous system resulted from the toxicity of the ion.Methods Seventy-two SD rats were divided into 3 groups and 24 rats were in each group.Three groups were fed respectively with different concentrations of fluoride(NaF)for 6 months to establish rat models with fluorosis.Controls were fed with tap water (NaF＜0.5 mg/L):lower and higher concentration group were fed with water containing NaF(5,50 ms/L).Animals are sacrificed after 6 months of treatment with fluoride and the dissected brains were kept for analysis.The protein levels of ERK1/2 in rat brains were detected by Western-blotting and the mRNA level by RT-PCR. The spatial learning and memorizing ability was measured by Morris water maze test. Results The ERK1/2 protein in control group,lower and higher concentration group was 0.944±0.10,1.253±0.02,1.953±0.07,the differece being statistieally sighificant between any two groups (P ＜ 0.05). The phospho-ERKl/2 protein in control group,lower and higher concentration group was 0.73±0.08,0.77±0.07,1.28±0.11,the differece being statistieally sighificant between any two groups(P ＜ 0.05);the activation rate of phospho-ERK1/2 in lower and higher concentration group [(68.4± 3.8)%,(64.1±3.2)%] was decreased compared to control group[ (82.3±10.7)%],the differece being significant(P ＜ 0.05). In the navigation trial,longer escape latencies of lower concentration group on the second, the third,the fifth and the sixth day were observed[ (46.0±8.0),(24.0±2.7),(8.9±5.3),(7.4±4.1 )s] compared to the control[ (39.3±6.9),(19.1±9.1 ),(8.3±3.4),(4.8±2.7)s],the differece being significant (P ＜ 0.05 or ＜ 0.01 );the similar results were also observed in the higher concentration group[ (36.9±16.8),(37.7±12.9), (19.7±7.6),(12.2±5.7 )s],and the escape latencies of the higher concentration group on the third,the fifth and the sixth day were longer than that in lower concentration group. In the probe test,the rats took more time to reach the first cross in lower and higher concentration group[(1.17±0.75),(4.18±1.10)s] than control group[ (5.89± 0.56 ) s ],the differece being significant (P ＜ 0.05 or ＜ 0.01 ) ;stayed shorter [ ( 17.05±4.25 ),(18.20±4.57 ) s ] than control [(25.37±5.65 )s ] in platform area (P ＜ 0.01 );the activation rates of ERK1/2 were directly correlated with the time taken to reach the first cross platform located in the probe test(r = 0.364,P ＜ 0.05) and the activation rates were also directly correlated with the escape latencies on the sixth day(r = 0.497,P ＜ 0.05). Conclusion Long-term exposure of excessive fluoride induces the change of expression and activating rate of the ERK1/2 in rat brains,leading to the decreased capacity of learning and memory.

Animals ; Cattle ; China ; epidemiology ; Echinococcosis ; epidemiology ; parasitology ; transmission ; Echinococcus granulosus ; pathogenicity ; Humans ; Seasons

Objective To determine whether peripheral nerve ultrasound can differentiate CharcotMarie-Tooth type 1 (CMT1) from chronic inflammatory demyelinating polyradiculoneuropathy (CIDP).Methods Eighteen patients with CIDP,13 patients with CMT1 and 16 healthy controls were recruited prospectively from Peking Union Medical College Hospital between January 2014 and July 2015 for this study.Ultrasonographic tests were performed via nerve tracing from wrist to axilla on median and ulnar nerve with a 10 MHz linear array probe.The cross sectional areas (CSAs) were measured at 10 defined sites of the nerves,respectively.Results CSAs (mm2) at all sites of median nerve were significantly increased in CMT1 than in CIDP (10.5 ±5.3 vs7.8 ±2.4,10.9 ±3.6 vs 6.8 ±1.9,11.5 ±5.0 vs7.3 ±1.8,13.5 ± 4.4vs7.2±2.5,16.0±4.5vs7.2±2.1,17.1±5.1vs7.0±2.8,21.0±4.5vs9.5±4.8,24.3±6.9 vs 9.5 ±4.3,23.9 ±6.0 vs 10.2 ±4.3,22.4 ±6.7 vs 9.8 ±2.1;t=2.141,4.766,2.935,4.858,6.715,6.602,7.148,7.100,8.078,6.498,respectively,all P ＜ 0.05).CSAs (mm2) at all sites of ulnar nerve were significantly increased in CMT1 than in CIDP (7.9 ± 1.8 vs 4.0 ± 1.3,8.9 ± 2.0 vs 4.9 ± 1.3,13.5±1.9 vs6.5±2.4,15.0±4.3 vs 6.5 ±1.5,15.8 ±4.4 vs 6.8 ±3.3,11.6±2.3 vs6.9± 3.1,10.2±3.2vs7.6±2.8,14.0±3.0vs6.6±2.1,19.2±3.7vs7.6±4.4,18.1±3.6vs6.3± 2.5;t =7.652,7.414,9.194,6.893,6.443,4.766,2.561,7.897,8.113,11.554,respectively,all P ＜ 0.05).CSAs at 8 sites of median nerve and 8 sites of ulnar nerve were significantly increased in CIDP than in healthy controls.Receiver operation characteristic curve analysis revealed that CSA was suited for differentiating CMT1 from CIDP,and the area under curve in 8 sites of median nerve and 9 sites in ulnar nerve was more than 0.9.Conclusions CSAs measured at different sites by peripheral nerve ultrasound in CMT1 were significantly increased than in CIDP.Measurement of CSAs by peripheral nerve ultrasound can be used for differentiating CMTI from CIDP.

Objective: To study the difference of the cell proliferation activity and microvessel density (MVD) between hepatic benign and malignant lesions for further demonstrating the biological features of tumor. Methods: There were 290 specimens of hepatocellular carcinoma (HCC), 128 specimens of cirrhosis tissues and 25 specimens of hepatic benign lesions were detected for PCNA, Ki 67 and MVD by immunohistochemistry on tissue microarray, respectively.Results: The expression level of PCNA and Ki 67 in HCC were 90.2% and 43.1%, which was obviously higher than that in cirrhosis (48.5% and 3.9%, P 0.05). MVD counting in HCC pathological grade Ⅰ Ⅱ(29.9?18.6) was higher than those in gradeⅢ (22.2? 18.2) and Ⅳ(22.9?19.0, P