3.The Screening of Bifidobacterium from Macrobian
Ping-Lan LI ; Zhi-Jie JIANG ; Chang-Wei MA ;
Microbiology 1992;0(03):-
Using colon adenocarcinoma cell line HT-29 as testing material, adhesion test was carried out for 24 strains of Bifidobacteria isolated from dejecta of longevous people aged one hundred years. The results showed that all strains could adhere to colon adenocarcinoma cells HT-29, among which the strains of TTF, Z2, TZ5 and (J-1) showed higher adhesive capability. Thus these four strains of Bifidobacteria were further tested for their endurance to stomach acid and bile acid. The production of vitamin B by these bacterial were also tested. All these tests indicated that the strain of TTF has high ability to produce Vitamin B_(1), B_(2), B_(6), B_(12), The survival rate after the treatment under pH 3.0 for 120 min was 93.11%, at the same time, the strain TTF can survive after being treated with 2% bile acid for 24h.
5.Curcumin inhibits mouse melanoma growth and influences nuclear factor?B activation and sur-vivin expression
Yan-Qun LIU ; Lin ZHOU ; Zhi-Ping WEI ;
Chinese Journal of Dermatology 2003;0(11):-
Objective To investigate the possible mechanism of curcumin inhibition to murine melanoma growth.Methods Melanoma cell line B16F10 was injected subcutaneously into the outer side of mouse right thigh to establish a melanoma-bearing mouse model.Seven days after the establishing the model, these mice were treated with intraperitoneal injection of curcumin at 50 and 100 mg/kg respectively or RPMI 1640 culture medium as control.Fourteen days later,the mice were killed,tumor weight was calculated;the tumor nuclear factor?B activity and survivin mRNA expression were measured by Western blot and RT-PCR,respectively.Results The tumor weight was significantly lower in the curcumin-treated mice than that in the controls (P
6.Informed consent right of the appraised individuals in forensic clinical examination.
Ju-Ping LI ; Wei HAN ; Shan-Zhi GU ; Teng CHEN
Journal of Forensic Medicine 2015;31(1):44-47
Informed consent right is not just for basic ethical consideration, but is important for protecting patient's right by law, which is expressed through informed consent contract. The appraised individuals of forensic clinical examination have the similar legal status as the patients in medical system. However, the law does not require informed consent right for the appraised individuals. I recommend giving certain informed consent right to the appraised individuals in the forensic clinical examination. Under the contracted relationship with the institution, the appraised individuals could participate in the examination process, know the necessary information, and make a selected consent on the examination results, which can assure the justice and fairness of judicial examination procedure.
Forensic Medicine
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Humans
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Informed Consent
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Patient Participation
7.Correlation analysis on combined medication with of Xiyanping injection in treatment of lung infection in real world.
Xiu-ping YIN ; Yan-ming XIE ; Ying-jie ZHI ; Wei YANG ; Zhi-fei WANG ; Jian HUO
China Journal of Chinese Materia Medica 2015;40(12):2440-2444
To analyze the regularity in combined medication with Xiyanping injection (Xiyanping for short) in the real world by as- sociation rules. Totally 5 822 patients using Xiyanping injection was collected from the 18 Class III Grade I hospitals nationwide to study the combined medication information of the patient with lung infection and make the analysis by using association rules and Apriori. According to the results, major drugs combined with Xiyanping in treatment of lung infection included compound amino acid, inosine, coenzyme A, cytidine triphosphate, vitamin C. Common drugs combined with Xiyanping can be divided into 5 categories: nutrition support therapy (vitamin C, compound amino acid) , coenzymes (coenzyme A, cytidine triphosphate, inosine), expectorants and antiasthmatics (ambroxol, salbutamol, doxofylline), hormones (dexamethasone, budesonide), antibiotics (mainly cefminox). The main combined medicines mostly conformed to the regularity for drugs treating lung infection. In addition, there were two most common medical combination models: the model for Xiyanping combined a single medicine is Xiyanping + nutrition support therapy, while the model for Xiyanping combined two or more than two medicines is Xiyanping + nutrition support therapy + coenzyme. Pharmacologically, Xiyanping is mostly combined with western medicines with similar pharmacological effects to substitute or supplement the antibiotic effect in treating lung infection. However, further studies shall be conducted for the safety and rationality of the combined medication based on clinical practices, in order to provide reference for clinical medication.
Adult
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Anti-Bacterial Agents
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administration & dosage
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Ascorbic Acid
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administration & dosage
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Cephamycins
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administration & dosage
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Drug Therapy, Combination
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Drugs, Chinese Herbal
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administration & dosage
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Female
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Hospital Information Systems
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Humans
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Lung Diseases
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drug therapy
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Male
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Middle Aged
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Young Adult
8.Study of etiology and esophageal motility characteristics of esophagogastric junction outlet obstruction patients.
Kun WANG ; Zhi Jie XU ; Ying GE ; Zhi Wei XIA ; Li Ping DUAN
Journal of Peking University(Health Sciences) 2020;52(5):828-835
OBJECTIVE:
To analyze the causes of the esophagogastric junction outlet obstruction (EGJOO) patients, to discuss the differences of the clinical manifestation and esophageal motility characteristics between the anatomic EGJOO (A-EGJOO) and functional EGJOO (F-EGJOO) subgroups, and to search the diagnostic values of the specific metrics for differentiating the subgroups of EGJOO patients.
METHODS:
For the current retrospective study, all the patients who underwent the esophageal high resonance manometry test were retrospectively analyzed from Jan 2012 to Oct 2018 in Peking University Third Hospital. The EGJOO patients were enrolled in the following research. The clinical characteristics, such as symptoms and causes of the patients were studied. Then the patients were divided into two subgroups as A-EGJOO subgroup and F-EGJOO subgroup. The clinical symptoms and the main manometry metrics were compared between these two subgroups. The significant different metrics between the two groups were selected to draw receiver operating characteristic (ROC) curves and the diagnostic values were analyzed in differentiating the A-EGJOO and F-EGJOO subgroups.
RESULTS:
The most common symptom of EGJOO was chest pain or chest discomfort (30.63%), then the dysphagia (29.73%), and acid regurgitation/heartburn (27.03%). Non-erosive reflux disease (36.04%) was the most popular cause for EGJOO, then the reflux esophagitis (17.12%). Besides the intra-EGJOO and extra-EGJOO lesions, the connective tissue disease (6.31%) and central nervous diseases (2.70%) were found to be the etiology of EGJOO. The causes of the rest 19 EGJOO were unknown. A-EGJOO patients presented significantly higher intra bolus pressure (IBP) than that of F-EGJOO [6.80 (5.20, 9.20) mmHg vs. 5.10 (3.10, 7.60) mmHg, P=0.016]. The area under curve of IBP was 0.637. When IBP≥5.15 mmHg, the sensitivity was 78.60% and specificity 50.70% to differentiate A- or F-EGJOO.
CONCLUSION
Chest pain or chest discomfort was the most common symptom in EGJOO patients. Besides the intraluminal structural disorders, the extra-luminal causes were found in EGJOO patients. A-EGJOO presented higher IBP than that of F-EGJOO patients. The cutoff value of IBP to differentiate A-EGJOO from EGJOO was 5.15 mmHg with sensitivity 78.06% and specificity 50.70%. However for the low area under curve, the diagnostic value of IBP was limited.
Deglutition Disorders
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Esophageal Motility Disorders/diagnosis*
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Esophagogastric Junction
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Humans
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Manometry
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Retrospective Studies
9.The ultrasound and endocrine profile and their correlations in obese and non-obese women with polycystic ovary syndrome
Hui, CHEN ; Wei-wei, ZHAN ; Chen, CHEN ; Zhi-fang, YANG ; Zhen-hua, LIU ; Jian-ping, MAO
Chinese Journal of Medical Ultrasound (Electronic Edition) 2013;(9):60-64
Objective To study the different ultrasonic features in patients of polycystic ovary syndrome (PCOS) with or without obesity based on body mass index (BMI), and to investigate whether certain hormonal factors correlate with ovarian morphology and blood flow, and to discuss the role of ultrasound combined with hormone test in the diagnosis of obese PCOS. Methods One hundred and five women with PCOS were recruited. Patients were divided into two groups according to BMI;obese PCOS group (OB-PCOS, n=32, BMI≥25 kg/m2) and non-obese PCOS (NOB-PCOS, n=73, BMI<25 kg/m2). The ultrasonic parameters of follicle number (FN), ovarian volume (Vol), resistance index (RI) of ovarian stromal blood, RI of uterine artery and serum levels of luteinizing hormone (LH), follicle stimulating hormone (FSH), the ratio of luteinizing hormone and follicle-stimulating hormone (LH/FSH), progesterone (P), estradiol (E2), free testosterone (FT), prolactin (PRL), sex hormoe binding globulin (SHBG), fasting plasma glucose (FPG), fasting insulin (FINS), the extent of insulin resistance and hyperandrogenism (HOMA-IR) were measured and compared. The correlation of the ultrasonic parameters and hormonal factors were analyzed. Results The Vol of OB-PCOS group was significantly higher than NOB-PCOS group [(12.25±4.89) ml vs (10.73±2.30) ml, t=2.20, P < 0.05]. FN and uterine artery RI of OB-PCOS group had a rising trend and RI of ovarian interstitial was on a reducing trend compared with NOB-PCOS group. But the differences were not statistically significant. The levels of FINS and HOMA-IR in OB-PCOS group [(14.82±6.45) mU/L and (3.91±3.30)] were significantly higher than those in NOB-PCOS group [(8.04±4.57) mU/L and (1.64±1.20)] (t=4.87, 3.47, respectively, both P < 0.01). And FSH in NOB-PCOS group was significantly higher than OB-PCOS group [(5.95±1.91) U/L vs (4.65±1.88) U/L, t=-2.77, P<0.01]. In POCS patients, FN was significantly associated with LH/FSH (r=0.35, P<0.01), and FT (r=0.38, P<0.01). Vol was significantly associated with LH/FSH, BMI, HOMA-IR and FPG (r=0.27, P<0.05;r=0.25, P<0.05;r=0.40, P<0.01;r=0.32, P<0.01). RI of ovarian stromal blood flow was significantly associated with SHBG (r=0.28, P<0.05). In OB-POCS group, RI of uterine artery was significantly associated with PRL (r=-0.58, P < 0.05). Vol was significantly associated with HOMA-IR (r=0.47, P < 0.05). In NOB-POCS group, FN was significantly associated with LH/FSH (r=0.33, P<0.05), and FT (r=0. 56, P<0.05). Vol was significantly associated with FT (r=0.31, P < 0.05). Conclusion There are some differences in the ultrasound and endocrine parameters between obese and non-obese PCOS patients, and some correlations exist between them.
10.Effects of Salinity and pH on the Growth and Active Products-secreting of Aspergillus sp. F3 from the Mangrove Rhizosphere
Zhi-Wei WANG ; Ying-Ying DOU ; Xing-Wei ZHU ; Bo-Ping YE ;
Microbiology 2008;0(12):-
An Aspergillus sp. strain F3 was isolated and identified from the rhizosphere soil of mangrove plant, Rhizophora stylosa Griff in Dongzhai harbor mangrove forest conservation in China. In this study, the effects of media salinity and pH on the mycelial biomass and the ability of producing antibacterial metabo- lites from this isolate were carefully analyzed. Results showed that this isolate can grow well on the SDA medium with higher salinity (3%~9%) and higher pH (8~10). Under the modified culturing conditions, this isolate can secret the antibacterial and antitumor metabolites. The extracts of acetic ether were about 448 mg/L of the fermentation broth. The antibacterial activities of the acetic ether extract were analyzed with bacteria and fungus. Results showed this extract can suppress the growth of Staphylococcus aureus、S. epi-dermidis、Sarcina lutea、Bacillus subtilis and Escherichia coli with MIC of 31.3 ?g/mL, 31.3 ?g/mL, 7.8 ?g/mL, 7.8 ?g/mL and 125.0 ?g/mL, respectively. It can also suppress the growth of Candida albicans with MIC of 125.0 ?g/mL. Further studies uncovered the cytotoxicity of this extract against the tumor cells, such as ECV304, Lovo and HepG2 with IC50 of 3.45 ?g/mL, 4.88 ?g/mL and 14.31 ?g/mL respectively.