Objective: To explore pathogeny and clinical effect of physiotherapy in young patients with lumbar disc hemiation (LDH). Method: Eighteen young LDH patients at 20-30 years old were administered comprehensive physiotherapy including lumbar traction, pulsed short wave therapy, pulsed magnetotherapy or low frequency modulated medium frequency electrotherapy. Before and after treatment, lumbar function was assessed with JOA scale. Result: Nine patients had specific trauma history; nine patients had sedentary lifestyle; five patients worked lor more than 8h/d in standing position; four patients had body mass index (BMI) 24-28. There was no significant difference in age, BMI and JOA scores between male and female group (P＞0.05). Patients scored significantly higher after treatment (P＜0.05). The remarkable effective rate of physiotherapy was 72.22%. Conclusion: Trauma, sedentary lifestyle, standing for long time, overweight or obesity are primary risk factors of LDH for youth and should be prevented by health education. Physiotherapy is significant efficient for young LDH patients.

Objective To describe our experience and method of reconstruction after resection of tumors around inner canthus and nasion in the elderly. Methods The line between outer and inner canthus was considered during reconstruction.If the surface of wound after resection was above this line,glabellar flap was used to reconstruct the upper part and the residual defect was repaired with advancement of lower eyelid and rotation of flap.If the surface of wound was below this line,lower eyelid flap was used and the residual defect was reconstructed with glabellar flap. Results All flaps survived without any significant complications.9 cases among 15 patients were followed up from 1 to 24 months.Repaired tissues all matched well with surrounding tissue in color,texture,and outline.Eyelid and medial canthal were not disturbed and there was no tumor recurrence.Scars were smoothy,soft and hidden with satisfactory appearance and vision. Conclusions Single local flap or combined local skin flaps around the nasion and inner canthus is one of reconstruction methods to get satisfactory cosmetic effect or facial morphology.

Objective To discuss the expression and mutation of β-catenin gene in breast carcinoma.Methods 119 breast carcinomas, 72 adenosis of breast tissues and 40 normal breast tissues were studied.Using immunohistochemistry studies to detect the expressions of β-catenin, then analyzing their relationship with the clinicopathological features of breast carcinomas. Gene mutation of β-catenin (exon 3) in 44 cases of breast carcinoma were analyzed by polymerase chain reaction (PCR) and then by direct sequencing.ResultsIn 40 cases of normal breast tissues, epithelial cells showed equally strong membranous of β-catenin protein at the cell-cell boundaries. The abnormal rate of β-catenin in breast carcinomas (78.15 %) was much higher than that of adenosis of breast tissues (44.44 %), the significant correlation was found (P＜0.01). The abnormal expression of β-catenin was associated with lymph node metastasis (P=0.031). Mutation of β-catenin gene was not detected in 44 cases of breast carcinoma, while the abnormal rate of β-catenin in 44 cases of breast carcinoma was 77.30 %. Conclusionβ-catenin abnormal expression could be considered as an useful marker for determining metastasis and prognosis of human breast carcinoma and for guiding treatment. β-catenin abnormal expression is not caused by β-catenin gene mutation, maybe by other mechanisms. It needs further study.

Drug therapy is one of the efficient methods for prostate cancer treatment. However, drug resistance greatly hindered the treatment of prostate cancer patients. Herein, the mechanisms of drug resistance in prostate cancer have been exhaustively reviewed, and that can provide an alternative strategy and new targets for anti-prostate cancer therapy.
Drug Resistance, Neoplasm ; Humans ; Male ; Prostatic Neoplasms ; drug therapy

The high molecular weight glutenin subunits (HMW-GS) are the main components of storage proteins of wheat,and play a critical role in determining the visco-elastic properties of gluten. There are both quantitative and qualitative effects of HMW-GS on the processing properties of wheat. Current knowledge of the molecular structures,compositions and properties of the gluten proteins of wheat is summarized in details,and the role of the HMW-GS in determining the quality of the grain for breadmaking and how their amount and composition can be manipulated leading to changes in dough mixing properties is also discussed systematically.

Objective To evaluate the myocardial blood supply in patients with metabolic syndrome (MS) using 99Tcm-MIBI SPECT MPI. Methods A total of 342 patients were divided into four groups according to the number of abnormal metabolic indices: no abnormal metabolic index (Group 1), one abnormal index (Group 2), two abnormal indices (Group 3), three or more abnormal indices (Group 4). Each patient underwent two-day protocol of gated stress and rest 99Tcm-MIBI MPI. One hundred and three of the 342 patients were clinically diagnosed as MS and underwent CAG within 1 month after MPI. χ2test was used to evaluate the difference among the four groups and Kappa test to analyze the correlation between MPI and CAG. Results Compared with CAG, the diagnostic sensitivity, specificity, positive and negative predictive values by 99Tcm-MIBI SPECT MPI for coronary artery diseases (CAD) in 103 MS patients were 80.5% (33/41), 85.5% (53/62), 78.6% (33/42) and 86.9% (53/61), respectively. The correlation coefficient between MPI and CAG was 0.657 (P<0.001). The abnormal MPI rates in group 1, 2, 3 and 4 were 23.3% (10/43), 32.9% (26/79), 54.4% (56/103), and 57.3% (67/117), respectively (χ2=23.22, P<0.001). Conclusions In MS patients,99Tcm-MIBI SPECT MPI can be useful for evaluating myocardial blood supply and the myocardial ischemia rates may correlate positively with the number of abnormal metabolic indices.

To construct a secretory-expression vector of antimicrobial peptide Bactenecin 7(Bac7),and identify the secretory-expression product in L.lactis MG1363 and its bioactivity.The splicing primers of regulation elements and Bac7 gene,which designed according to codon usage preferences of L.lactis MG1363,were chemically synthesized,and the overlap-extension PCR method was used to splice the full length of Bac7 gene.Then the Bac7 gene was linked to expression vector pMG36e to construct pMG36e/Bac7 vector,and pMG36e/Bac7 was transformed into L.lactis MG1363 by electrophoration.RT-PCR and Western blot assays were applied to investigate the expression of the Bac7 gene in L.lactis,and bioactivity of Bac7 in culture supernatant of L.lactis was tested with plate-diffusion method.The results showed that the Bac7 gene and its regulation elements was amplified and cloned in the vector pMG36e successfully,The secretory-expressed Bac7 in L.lactis MG1363 harboring pMG36e/Bac7 was identified by Western blot,and it had high bacteriostatic activity against E.coli.These results indicate that the recombinant L.lactis MG1363 could express bioactive Bac7,which lays a foundation for further study of oral administration of a Bac7-secreting L.lactis to treat intestinal bacteria infection.

Objective To express the beta hemolysin ( Hlb), an important toxin secreted by Staphylococcus aureus ( S.aureus) and the mutant protein Hlb H-149-N , to detect the hemolytic activity of Hlb and Hlb H-149-N on sheep erythrocytes , and to prepare the specific antibodies against Hlb which can inhibit the hemolytic activity of Hlb .Methods Hlb gene was amplified by PCR using S.aureus NCTC-8325 genome DNA as template.The expression vector pET-28a-hlb was constructed and transformed into E.coli BL21(DE3).The expression vector pET28a-hlbH-149-Nwas constructed through point mutation.The recombinant Hlb and Hlb H-149-N protein were expressed and purified by Ni 2+affinity chromatography .The hemolytic activity of Hlb and Hlb H-149-N was measured by sheep erythrocyte lysis assay .Results Recombinant Hlb protein and the mutant were obtained .Further investigations showed that Hlb could significantly induce the lysis of SRBC while HlbH-149-N could not.The specific polyclonal antibodies against Hlb (anti-Hlb) were prepared.It was found that anti-Hlb recognized Hlb and Hlb H-149-N .Moreover , it was found that anti-Hlb blocked the hemolytic activity of Hlb .Conclusion The recombinant Hlb protein with high hemolytic activity and Hlb H-149-N without hemolytic activity are obtained while its neutralized antibody is pepared .Hlb from S.aureus has different hemolytic effects on erythrocytes from various species .Our findings will facilitate the investigation on the role of Hlb in the pathogenesis of S.aureus.

Objective To clone and express the alkaline protease AprA , one important virulence factor secreted by Pseudomonas aeruginosa(PAE)in Escherichia coli, to clone and express the inhibitor of AprA (AprI) and its substrate flagellin , and to detect the function of AprA and the inhibitory function of AprI .Methods The genes encoding AprA ,AprI and flagellin gene were amplified respectively by PCR using PAE PAO 1 genome DNA as the template .The expression vec-tors (pET-28a-AprA, pET-28a-AprI and pET-28a-Flagellin) were constructed and transformed into E.coli BL21(DE3) respectively.The recombinant AprA protein was expressed by IPTG induction and purified via denaturing and renaturation. The recombinant AprI and flagellin were expressed and purified by Ni 2+affinity chromatography .The cleavage activities of AprA on flagellin were detected by SDS-PAGE.Results Recombinant AprA , AprI and flagellin protein were expressed and purified .It was demonstrated that AprA cleaved flagellin , which was blocked by AprI .Conclusion Recombinant AprA could cleave its substrates as an alkaline protease , and its inhibitor AprI inhibits the activities of AprA .This study will contribute to further investigations on the role of AprA in the pathogenesis of PAE .

A patient with severe hypoglycemia due to insulin-like growth factor ( IGF)-IIsecreted by a giant solitary fibrous tumor of the pleura ( SFTP) was investigated through comprehensively reviewing his medical history and clinical records. The patient had severe hypoglycemia accompanied with significantly decreased serum insulin level. A solitary fibrous tumor of the pleura was found, and right pneumonectomy removed this giant tumor. Two years after the operation, the patient was fit and well with no further hypoglycemia episodes. Non-islet-cell tumor hypoglycemia should be considered in patients who have hypoglycemia episodes accompanied with significantly decreased serum insulin level.