The production conditions of glutathione with shaking flask fermentation by the mutant Saccharomyces J-X25, a methionine-defected strain were studied, and the optimum culture conditions are as follows: initial pH6. 0, temperature 30℃, 100ml in 500ml flask, the inoculum size 10% and agitation rate 220r/min. The emphasis was on the stimulating effect on the cells by dioxogen and the sodium lactate as surfactant. Both of which were added at the logarithmic phase of fermentation, and the GSH production was up to 0. 253g/L , 52% higher than the control without the additions. Compared with the production of GSH initial strain that by the mutant in optimum conditions was increased by 79%.

Luteinized unruptured follicle syndrome (LUFS), a specific type of ovulation disorder, is for a cause of female infertility. Acupuncture therapy has a good effect for LUFS. In order to understand the clinical effects and research situation of acupuncture therapy for LUFS, the author analyzed and reviewed the relevant literature. It was indicated by the findings that acupuncture therapy and integrative therapy of acupuncture and Chinese herbs have good therapeutic effect for this disease. Acupuncture therapy has the effect to promote ovulation. By the therapeutic principle to tonify the kidney and circulate blood, acupuncture therapy mostly was adopted in the period of ovulation. The acupoints are mostly selected from the lower abdomen and lower limbs, possibly based upon syndrome differentiation at the same time. The needling techniques are of certain characteristics. But, the issues of low quality, un-standardized inclusive, exclusive criteria and effective criteria still exist in the current clinical study.

AIM: To explore the molecular mechanism of Radix Ophioponis against vascular endothelial cell (VEC) apoptosis induced by LPS. METHODS: The apoptosis of human umbilical vascular endothelial cells(HUVEC) was induced by lipopolysaccharide(LPS). The influence of Radix Ophiopogonis on the expression of bcl-2 and intracellular Ca 2+ was detected by flow cytometry and laser confocal microscope. RESULTS: The serum containing Radix Ophiopogonis suppressed the increase in bcl-2 expression and overloading of Ca 2+ induced by LPS in HUVEC.CONCLUSION: The mechanism of Radix Ophiopogonis against HUVEC apotosis may be related with its regulatory effect on bcl-2 expression and remission of Ca 2+ overloading.

Background and purpose:In the process of gastric cancer development, cytothesis and apoptosis, and endoplasmic reticulum stress (ERS) are very important pathological processes. Glucose regulated protein 78 (GRP78) and phosphorylated form of extracellular signal-regulated protein kinase (pERK) play important roles in it. This study aimed to investigate the expression of GRP78 and pERK in gastric adenocarcinoma, chronic atrophic gastritis and superficial gastritis, and the role of GRP78 and pERK in the development of gastric adenocarcinoma. Methods:Gastric adenocarcinoma, chronic atrophic gastritis and superifcial gastritis tissues in 60 cases respectively were employed in the study. We chose 25 fresh tissue samples from each group, and the level of GRP78 and pERK mRNA in different tissues were detected by RT-PCR assay. The expressions of GRP78 and pERK in different parafifn samples were detected using immunohistochemistry assay. In addition, the relationships between GRP78 and pERK expression and age, gender, differentiation, invasion, disease stage, and lymphoid node metastasis were analyzed. Results: The expression level of GRP78 and pERK mRNA in gastric adenocarcinoma(1.26±0.18, 2.35±0.36) were significantly higher than chronic atrophic gastritis (0.89±0.25, 1.18±0.25) and superficial gastritis (0.29±0.09, 0.68±0.10, P<0.01). The positive ratio of GRP78 expression in gastric adenocarcinoma, chronic atrophic gastritis and superficial gastritis were 78.3%, 46.6%, 6.7%. The positive ratios of pERK expression were 88.3%, 43.3%, 5.0%, respectively. The GRP78 and pERK expression in different tissues were signiifcantly different (P<0.01). GRP78 and pERK expression were positively correlated with differentiation, disease stage and lymph node metastasis. There was a positive correlation between the gene and protein expression of GRP78 and pERK with a Pearson correlation value of 0.307 and 0.368, respectively. Both univariate and multivariate analysis revealed that GRP78 was related to the prognosis of gastric adenocarcinoma. Conclusion:GRP78 and pERK may play an important role in the transition of normal gastric cells to malignant cells. The expression of these two genes enhances tumor progression. Overexpression of GRP78 and pERK is significantly correlated with poor prognosis in patients with gastric adenocarcinoma. The determination of the expression of GRP78 and pERK might be helpful for the prevention, early diagnosis of gastric carcinoma. Particularly, GRP78 is valuable for the judgement of prognosis, and might be a new target for the treatment of gastric adenocarcinoma.

Vertebral artery hypoplasia is a congenital vessel variation. Its incidence is from 1. 9 to 26. 5% . In recent years, studies have shown that vertebral artery hypoplasia may be a potential risk factor for posterior circulation infarction, especialy when it coexists with other cerebrovascular risk factors. Vertebral artery hypoplasia may also cause regional hypoperfusion and complex neurovascular regulation, and it also has a certaln link with migralne.

Objective:To observe the influence of methylprednisolone in the respiratory mechanical parameters in the elderly patients undergoing major surgeries with general anesthesia intubation after mechanical ventilation,and to investigate whether methylprednisolone can improve the respiratory system degenerative diseases and benefit the mechanical ventilation. Methods:Sixty patients undergoing elective line laparotomy were divided into experimental group and conrol group (n=30) according to their wishes.The patients in experimental group receieved intravenous injection of methylprednisolone 1 mL (40 mg) after endotracheal intubation,and the patients in control group receieved 1 mL intravenous saline water injection.The airway peak pressure (Ppeak), airway platform (Pplat), lung compliance (Compl), and airway resistance (Raw) of the patients in two groups were recorded at the time of immediately before administration and 10,20,30,40 min after administration.The arterial blood oxygen partial pressure(PaO2),arterial blood CO2 partial pressure(PaCO2),CO2 partial pressure at the end of breathe out(PetCO2) of the patients were detected at the time of immediately before administration and 20 min after administration.Results:Compared with before administration, the respiratory mechanics parameters of the patients in control group 10,20,30,40 min after administration had no statistically significant differences (P>0.05);the Comple of the patients in experimental group was singnificantly increased (P<0.05), and the Ppeak, Pplat,and Raw were significantly decreased (P<0.05).Compared with control group, the Compl of the patients in experiment group 10,20,30,and 40 min after administration were significantly increased (P<0.05),and the Ppeak, Pplat, and Raw were decreased (P<0.05).Compared with before administration,the PaO2,PaCO2,and PetCO2 of the patients in control group 20 min after administration had no significant differences(P>0.05);the PaCO2 and PetCO2 of the patients in experimental group 20 min after administration were decreased(P<0.05),and the PaO2 was increased(P<0.05).Compared with control group,the PaCO2 and PetCO2 of the patients in experimental group 20 min after administration were decreased(P<0.05),and the PaO2 was increased(P<0.05).Conclusion:Methylprednisolone can obviously reduce PaCO2,Peak, and Pplat and increase PaO2 and Compl;methylprednisolone has possibility in improving the adverse effects of degenerative disease of respiratory system on general anesthesia in the elderly patients.

OBJECTIVE:To prepare red sage gel for implantation and to establish a method for its quality control.METHODS:With carbamer934as vehicle,2%red sage gel was prepared;a HPLC method for the determination of tanshinone in gel was established.RESULTS:The calibration curve of tanshinoneⅡ A was linear in the concentration range of16.59～33.18ng/ml,Y=9723X—2569(n=5),r=0.9987.CONCLUSION:The preparation of red sage gel was simple,its quality was stable;the method of quality control was rapid and accurate.

With the growing awearness of Big data and its application in economic,social and scientific fields,this paper analyzed the impact and challenges big data has brought to the field of biomedical research,and put forward suggestion of improving applications of big data in biomedical research.

Objective To investigate the feasibility of percutaneous transforaminal endoscopic spine system in thoracic discectomy for disc herniation. Methods One patient with thoracic disc herniation involved the level of vertebral segment in T11/12 was treated with percutaneous transforaminal endoscopic spine system and followed up for 1 month. The targeted puncture was performed under local anesthesia and fluoroscopic guidance with patient in prone position. The foramen of T 11/12 was enlarged gradually with four trephinations, and the working cannula was inserted transforaminal into the canal. Then the herniation was exposed and removed with full endoscopic technique, including the loosen nucleus pulposus. The dural sac was exposed and released adequately. Drainage was placed during operation. Results The procedure was successfully carried out and the dural sac was completely released. The drainage was removed in the second day of operation. The patient could walk in the third day after operation with obvious relief of back and leg pain. At the follow-up of one month postoperation, the visual analogue scale of leg pain decreased from 8 to 1, and the Oswestry disability index (ODI) decreased from 64 to 4. According to MacNab scale, excellent result was acquired. Conclusion There is the feasibility of the percutaneous transforaminal endoscopic spine system in thoracic discectomy for disc herniation. It is a good minimal invasive technique with good results and high technical requirements for surgeons.

Objective To investigate the expression and significance of nuclear transcription factor-?B(NF-?B) in childhood acute lymphoblastic leukemia(ALL) and the effect of dexamethasone(DEX) on its expression,to provide the experimental base for corresponding clinical treatment of the ALL,in which NF-?B is taken as a target.Methods 1.The biotin-streptavidin method was used to detect NF-?B P65 protein on 20 childhood ALL patients and 20 healthy children.2.The effect of DEX at clinically relevant dosage on NF-?B P65 protein were also detected by the biotin-streptavidin method.Results 1.The positive expression rate of NF-?B P65 protein in childhood ALL patients was 85.50%,obviously higher than that in normal group(10.0%)(?~2=22.56 P