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OBJECTIVE：To establish the content determination method of betaine in Lycium barbarum ，and to optimize the extraction method. METHODS ：HPLC method was used to determine the content of betaine in L. barbarum . The determination was performed on Waters Spherisorb NH 2 column with mobile phase consisted of acetonitrile- 0.01 mol/L monopotassiun phosphate aqueous solution （75∶25，V/V）at the flow rate was 0.7 mL/min. The detection wavelength was 195 nm，and column temperature was 30 ℃. The sample size was 10 μL. Using the content of betaine as index，on the basis of single factor tests ，L（9 34）orthogonal test design were used to select the methanol volume fraction ，extraction time and solid-liquid ratio of betaine in L. barbarum by ultrasonic extraction. The contents of betaine in 10 batches L. barbarum were determined ，and compared with the results of TLC included in 2015 edition of Chinese Pharmacopeia . RESULTS ：The linear range of betaine was 2.035-2 035.04 μg/mL（R2＝0.999 3）. The limits of detection and quantification were 0.410 μ g/mL and 2.051 μ g/mL，respectively. The average recovery were 97.41％-98.86％（RSDs were 0.8％-1.4％，n＝3）. RSDs of precision ，reproducibility and stability （24 h）tests were not higher than 1.2％. The optimal extraction method included solid-liquid ration of 1∶30（g/mL），ultrasonic extraction with methanol for 45 min. The average content of betaine in the extract from the three validation tests was 2.30％（RSD＝0.43％，n＝3）. The contents of betaine in 10 batches L. barbarum were 1.91％ -2.55％ ，which was no significantly different from the results of TLC （1.88％-2.60％）（RE were －1.92％-2.79％）. CONCLUSIONS ：The content determination method of betaine in L. barbarum was established successfully ，and the extract ion process was optinized.
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OBJECTIVE:To observe therapeutic efficacy and safety of hyperthermia combined with pemetrexed and cisplatin for medium and advanced lung adenocarcinoma. METHODS:Medical information of 120 patients with medium and advanced lung ade-nocarcinoma were analyzed retrospectively. They were divided into control group(60 cases)and observation group(60 cases)ac-cording to therapy method. Control group was given Pemetrexed disodium for injection 500 mg/m2 intravenously,d1+Cisplatin for injection 75 mg/m2 intravenously,d2-4. A treatment course lasted for 21 d,and both received 2 courses of treatment at least. Obser-vation group was additionally given hyperthermia,once a month,2-4 times in total,on the basis of control group. Clinical effica-cies,the improvement of life quality and the occurrence of toxic reaction were observed in 2 groups. RESULTS:Both groups re-ceived 2 courses of treatment at least. Total response rate of observation group(63.3%)was significantly higher than that of con-trol group(36.7%),and the improvement rate of life quality(60.0%)was significantly higher than control group(33.3%),with statistical significance (P<0.05). There was no statistical significance in Ⅲ-Ⅳ degree liver and renal function injury,myelosup-pression or the incidence of gastrointestinal tract between 2 groups (P>0.05). CONCLUSIONS: Hyperthermia combined with pemetrexed and cisplatin shows significant therapeutic efficacy for medium and advanced lung adenocarcinoma and improves surviv-al quality without increasing the occurrence of toxic reaction.
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Objective To observe the therapeutic efficacy and security of hyperthermia combined with chem-otherapy for advanced gastric carcinoma.Methods The clinical data of 126 patients with advanced gastric cancer were retrospectively analyzed.According to the different treatment methods,they were divided into simple chemotherapy group(A group,63 cases)and chemotherapy combined with hyperthermia group (B group,63 cases).A group received chemotherapy through vein,the patients received docetaxel 75mg/m2 on day 1,tegafur 80mg/m2 on day 1 -14 and cisplatin 75mg/m2 on day 2 -4 of 21 -day courses.B group received hyperthermia together with chemothera-py.Hyperthermia was maintained at 40 -42℃ for 90min.The efficacy and toxicity -side -effect after the patients received two courses were evaluated.Results In A group,the rate of complete remission(CR)was 0 case,partial remission(PR)in 28 cases,stable disease(SD)in 27 cases,progressive disease(PD)in 8 cases,and the overall response rate(CR +PR)was 44.4%,while those in B group were 3 cases,36 cases,21 cases,3 cases and 61.9%, respectively.There was significant difference between the two groups(χ2 =4.589,P =0.032).The improvement rate of life quality of B group(58.7%)was better than A group(33.3%),there was statistically significant difference between the two groups(χ2 =9.232,P =0.002).The rates of Ⅲ°+Ⅳ°abnormal liver and kidney function,myelo-suppression and gastrointestinal tract in A group were 19.0%,23.8% and 25.4%,those in B group were 15.9%, 20.6% and 30.2%,there were no statistically significant differences between the two groups (P =0.815,P =0.830, P =0.426).Conclusion Hyperthermia combined with chemotherapy is efficient and safe for advanced gastric carci-noma,and it is worthy of furthermore study and observation in clinic.
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Objective To investigate the role of tumor suppressor gene PTEN in colorectal cancer. Methods Using Northern blot,immunohistochemistry, colorectal carcinoma was examined in 47 cases. ResultsKG1 The expression of PTEN mRNA in colorectal cancer was lower than that in paired para-carcinoma tissues( P
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Objective To explore the serum proteomics characteristics of early carcerization of post-hepatitic cirrhosis.MethodsThe serum protein profiles were detected of 62 patients with post-hepatitic cirrhosis and 100 patients with hepatic carcinoma in Ⅰ-Ⅱ stage (T1-2N0M0) and cirrhosis by surface-enhanced laser desorption/ionization-time of flight-mass spectrometry (SELDI-TOF-MS) IMAC30-Cu2+ ProteinChip array (Ciphergen Biosystems Inc.,USA),the distinct proteins were analyzed and a classification tree model was established by using Biomarker Patterns software.The diagnostic efficacy of the model was blindly tested using the serum protein from both groups.ResultsThe serum protein profiles of post-hepatitic cirrhosis and hepatic carcinoma complicating with cirrhosis were analyzed and a classification tree model was established including 4 distinct proteins with different M/Z.In the training mode,the accuracy was 99.4% (161/162) on differential diagnosis to differentiate post-hepatitic cirrhosis and hepatic carcinoma complicating with cirrhosis,the sensitivity and specificity were 99.0% (99/100) and 100.0% (62/62),respectively,on the diagnosis of hepatic carcinoma complicating with cirrhosis.In the testing mode,the accuracy of differential diagnosis was 94.4% (153/162),the sensitivity and specificity were 95.0% (95/100) and 93.5% (58/62) on the diagnosis of hepatic carcinoma complicating with cirrhosis.ConclusionSELDI-TOF-MS ProteinChip technique is of convenient and rapid,and with high sensitivity and specificity on the diagnosis of early carcerization of post-hepatitic cirrhosis.
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Objective To explore the pathologic factors influencing the long-term survival of patients with relapsing and/or metastatic colorectal cancer (CRC) after radical operation for founding a basis for the clinical treatment protocols.MethodsThe clinical data were collected of 132 patients who were with relapsing and/or metastatic colorectal cancer (CRC) after radical resection,hospitalized from the beginning of 2002 to the end of 2007,and had integrated hospitalization and follow-up data.The relationship between the clinic pathologic factors and long-term survival was retrospectively analyzed.ResultsUnivariate analysis showed that the survival rate was higher in the patients with single recurrence and/or metastasis than in those with multiple recurrences and/or metastases,in the patients with relapsing and/or metastatic rectal cancer than in those with relapsing and/or metastatic colon cancer,and in patients received secondary operation than in those received non-operative treatment.Cox multivariable regression model analysis showed that the treatment modality for recurrence and/or metastasis,the number of recurrence and/or metastasis sites,the invasive depth of primary tumor,and lymph node metastasis were correlated with the long-term survival of patients.Among them,the treatment modality was the most important factor influencing the prognosis.ConclusionsThe recurrence and/or metastasis rate is higher in the patients with rectal cancer than in those with colon cancer,but the prognosis of the former is better than that of the latter.Secondary operation,which is helpful for the long-term survival,is suggested for the patients with relapsing and/or metastatic CRC.
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Objective To approach the significance of serum protein fingerprinting on the identification of different courses of acute myocardial infarction. Methods For 153 patients of acute myocardial infarction, including 45 cases of just admitted patients, 12 cases of 3h admitted patients, 22 cases of 6h admitted patients, 24 cases of 9h admitted patients, 24 cases of 12h admitted patients, 16 cases of 24h admitted patients and 10 cases of 48h admitted patients. The relative contents of serum proteins were detected by IMAC3 chip and proteinchip reader (CipherGen Inc., VS). Results On the M/Z values ranged from 4KDa to 12KDa, ten protein contents were obviously different between the different courses of acute myocardial infarction. All the patients in different courses were diagnosed correctly, the accuracy was 100%(153/153). Both sensitivity and specificity were also 100% in learning mode. Conclusion Different courses of acute myocardial infarction patients can be quickly and correctly diagnosed by this method with high sensitivity and specificity. That will be widely used in clinical application