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OBJECTIVE：To establish t he metho d for the content determination of pulegone in Schizonepetae tenuifolia decoction pieces and its compound preparation. METHODS ：Hollow fiber liquid-phase microextraction coupled with HPLC （HF-LPME-HPLC） was adopted. Based on single factor tests ，HF-LPME condition of S. tenuifolia decoction pieces and its compound preparation （taking Compound S. tenuifolia granule as an expample ） was optimized by central composite design-response surface methodology using pulegone enrichment multiple as index ，with the concentration of sample phase solution （NaCl），extraction time and stirring speed as factors. Validation test was conducted. HPLC method was adopted to determine the content of pulegone. The determination was performed on Hypersil C 18 column with mobile phase consisted of methanol- 0.3％ phosphoric acid （gradient elution ）at the flow rate of 1.0 mL/min. The detection wavelength was set at 252 nm，the column temperature was 25 ℃. The sample size was 20 μL. The feasibility of HF-LPME-HPLC method established in this study was validated by using HPLC method stated in the item of S. tenuifolia decoction pieces in 2020 edition of Chinese Pharmacopoeia （part Ⅰ）as reference. RESULTS ：The optimum HF-LPME conditions included n-nonanol as the extraction solvent ，sample phase solution with 11％ NaCl and pH value of 7，stirring speed of 800 r/min，extraction time of 36 min. Results of HPLC methodology investigation showed that linear range of pulegone were 0.05-5 μg/mL（r＝0.999 0）. The limits of detection and quantitation were 0.4 and 1.3 ng/mL，respectively. RSDs of intra-day and inter-day precision were 1.8％-4.0％ and 1.5％-4.1％（n＝3），respectively. RSDs of reproducibility and stability tests （24 h）were all lower than 8％（n＝6）. Average recoveries of S. tenuifolia decoction pieces and Compound S. tenuifolia granule were 102.6％-105.1％ and 97.2％-102.3％，respectively；RSDs were not higher than 4.1％ and 6.2％（n＝3）. The average contents of pulegone in S. tenuifolia decoction pieces determined by pharmacopoeia method and established method were 0.84 mg/g（RSD＝4.3％ ，n＝3）and 0.87 mg/g（RSD＝5.5％ ，n＝3），respectively，with no significant difference （P＞0.05）. CONCLUSIONS ：The established HF-LPME-HPLC method can enrich and concentrate pulegone ， shows strong purification ability and high sensitivity ，and can be used to determine the contents of pulegone in S. tenuifolia decoction pieces and its compound preparation.
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Objective:To explore the differences of attention bias performance between patients with heroin dependence in methadone maintenance treatment(MMT) and healthy controls.Methods:A total of 38 heroin dependent patients in the Fourth People's Hospital of Huainan from January 2018 to September 2018 were selected as MMTgroup, and 32 gender-and age-matched healthy controls were selected as healthy control(HC) group.The attention bias was evaluated by Emotional Stroop Task, and the difference between the two groups was compared.Results:The error number of the herion-related words in Emotional Stroop Task of MMT group was lower than that of HC group[0.75(2, 5) vs.1(0, 2)], the difference was statistically significant( Z=-2.184, P=0.029). The number of errors in point and neutral words and reaction time of point, neutral word and clue word had no statistically significant differences between MMT group and HC group[1(0, 4) vs.1(0, 2); 3(2, 5) vs.2(2, 3); (1 055.14±303.50)ms vs.(985.40±173.71)ms, (1 126.89±347.82)ms vs.(1 022.76± 173.62)ms; (1 188.53±371.80)ms vs.(1 113.23±225.11)ms]( Z=-1.331, P=0.183; Z=-1.723, P=0.085; t=1.150, P=0.254; t=1.539, P=0.129; t=1.001, P=0.320). There were no statistically significant differences in attention bias influenced by the dosage and duration of methadone between MMT group and HC group(all P>0.05). Conclusion:These results demonstrate that heroin dependence patients in MMT have attentional bias in heroin-related words.Methadone has no effect on attention bias in patients with heroin dependence during maintenance treatment intervention.
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<p><b>OBJECTIVE</b>To study retrospectively the clinical efficacy on pediatric recurrent pneumonia treated with point application in summer for the prevention in winter, as well as the relationship of age, sick duration, attack frequency and skin reaction with the clinical efficacy.</p><p><b>METHODS</b>One hundred and thirty-five cases of pediatric recurrent pneumonia were divided into a one-year group, a two-year group and a three-year group, 45 cases in each one according to the duration of treatment. The acupoints for the application were Dingchuan (EX-B1), Feishu (BL 13), Gaohuang (BL 43) and Danzhong (CV 17) with the same herbal plaster (prepared with rhizome corydalis, semen brassicae, euphorbia kansui and asarum sieboldii at the ratio of 2:2:1:1) on the first day of each of the three periods of the hot season, 2 to 4 h in each treatment. The attack frequency and change rate were observed before and after treatment in the three groups. The clinical efficacy was assessed in the three groups.</p><p><b>RESULTS</b>(1) After treatment, the attack frequency of pediatric pneumonia was reduced apparently in the three groups (all P < 0.01). The result in the three-year group was less than that in the one-year group and the two-year group and the change rate was the highest (all P < 0.01). (2) After treatment, the sick duration was shortened apparently in the three groups (P < 0.05, P < 0.01). The result in the three-year group was the most remarkable, statistically and significantly different as compared with the other two groups (both P < 0.01). (3) The total effective rate in the three-year group was better than that in either of the other two groups [84.4% (35/45) vs 51.1% (23/45, P < 0.01), 84.4% (35/45) vs 71.1% (32/45, P < 0.05)]. (4) The total effective rate in the children aged from 4 to 7 years was better than that in the group aged from 8 to 10 years and the group aged from 11 to 14 years [79. 7% (47/59) vs 71.7% (33/46, P < 0.05); 79.7% (47/59) vs 43.3% (13/30, P < 0.01)]. (5) The total effective rate in the children with the sick duration ≥ 4 year was lower than that in the group with the sick duration <2 years and that 2 to 4 years (both P < 0. 01). (6) The total effective rate in the children with the annual attack frequency of 2 to 4 times was better than that with the frequency ≥ 4 times (P < 0.01). (7) For the cases with skin reaction after treatment, the total effective rate was better than that in the cases without reaction (P < 0.05).</p><p><b>CONCLUSION</b>The point application in summer for the prevention in winter reduces the attack frequency of pediatric pneumonia, shortens the sick duration and has achieved the better significant efficacy in the cases of lower age, shorter sick duration, less attack frequency and moderate skin reaction.</p>
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Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Pontos de Acupuntura , Medicamentos de Ervas Chinesas , Pneumonia , Tratamento Farmacológico , Estações do Ano , Resultado do TratamentoRESUMO
Objective To study the effects of oxytocin antagonists-atosiban on pregnancy outcome after thaw embryo transfer (TET).Methods Between Jul.and Dec.2012,a total of 120 women undergoing TET in Reproductive Medical Center,General Hospital of Tianjin Medical University were randomly allocated into atosiban and control group.They were all transferred 2 or 3 top quality embryos at phase of 7-8 cells.Patients in atosiban group were administered by intravenous administration of atosiban before 30 minutes of embryo transfer with a total administered dose of 37.5 mg.In the control group,no special treatment was given before embryo transfer.All patients in 2 groups underwent progesterone luteal support regularly after embryo transfer,then the clinical rate of pregnancy,implantation and early abortion was compared.Results The clinical pregnancy rate per cycle and implantation rate per transfer were 60％(36/60) and 30.0％ (48/160) in the atosiban group,which were higher than 42％ (25/60) and 20.3％ (31/153) in the control group (all P ＜ 0.05).Early abortion rate was 6％ (2/36)in the atosiban group,which was no statistical difference comapring with control group [16％ (4/25),P ＞ 0.05].Conclusion It was suggested that atosiban treatment before embryo transfer can improve the outcome of pregnancy,and increase clinical pregnancy rate and implantation rate after TET.
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ObjectiveTo study the influence of EmbryoGlue on the implantation of embryo and pregnancy outcome in vitro fertilization (IVF)-embryo transfer (ET).Methods From August 2010 to January 2011,243 infertile patients in Reproductive Medical Center of Tianjin Medical University General Hospital who underwent IVF or intracytoplasmic sperm injection (ICSI) were divided into two groups,including 129 cases used EmbryoGlue as the embryo transfer medium in experimental group and 114 cases used G-2 as embryo transfer medium in control group.Pregnancy outcome were compared between two groups.Results (1) The female age,IVF/ICSI constituent ratio,previous failure cycles and infertile factors of patients did not show statistical difference between experimental group and control group (P ＞0.05 ).(2) The implantation rate of women in experimental group increased significantly compared with the control group [ 30.4％ ( 85/280 ) vs.18.8％ ( 48/255 ),P ＜ 0.05 ] ; Clinical pregnancy rate increased significantly compared with the control group [48.8％ (63/129) vs.34.2％ (39/114),P ＜0.05] ; Multiple pregnancy rate increased significantly compared with the control group [ 34.9％ (22/63) vs.20.5％(8/39),P ＜ 0.05 ] ; Ectopic pregnancy rate decreased significantly compared with the control group [ 4.8％(3/63) vs.17.9％ ( 7/39 ),P ＜ 0.05 ].ConclusionEmbryoGlue can facilitate embryo implantation in IVF-ET and reduce the occurrence of ectopic pregnancy.
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Objective To explore the effect of psychotherapy in patients with methadone maintenance treatment.Methods 60 patients accepted drug and 69 patients accepted drug with psychotherapy treatment were evaluated with Self-Rating Anxiety Scale(SAS) and Self-rating Depression Scale(SDS) in the beginning of psychotherapy therapy and 3 months later.All of them were assessed for heroin use at 3 months after the end of a 3-month treatment period.Results SAS、SDS did not show any significant differences between the two groups in the beginning(P ＞0.05).After 3 months of psychotherapy,the differences in SDS and SAS between the two groups showed statistically significant(t =- 2.858,- 2.465,all P ＜0.05).After 2 months of psychotherapy,the number of relapsing again patients of group psychotherapy treatment was significantly lower than control group(x2 =6.906,5.054,5.100,4.247,all P ＜0.05).Conclusion The mental healthy status of patients with heroin dependence is poor.Psychological treatment plays an important role in short-term prevent hernoin addicts from relapse again.
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A method was developed for the determination of furocoumarin compounds(psoralen, oxypeucedanin, imperatorin, isoimperatorin) in traditional Chinese medicine samples by dispersive liquid-liquid microextraction(DLLME) coupled with high performance liquid chromatography and the relation of sample solution volume, sediment phase volume with enrichment factors was deducted. Some important parameters that influenced the extraction efficiency were optimized: 50 μL carbon tetrachloride and 300 μL acetonitrile were rapidly injected into 1.5 mL sample solution containing 2.5%(w/V) NaCl. After centrifugation at 3500 r/min for 3 min, the sedimented CCl_4 phase was pumped and recorded the volume, then dissolved with methanol and injected into the HPLC for analysis. Under the optimum conditions, a good linear relationship was obtained in the range of 0.006 6.00 mg/L of both psoralen and oxypeucedanin and 0.006-12.0 mg/L of both imperatorin and isoimperatorin. The limits of detection were 1.0-3.0 μg/L(S/N=3). The relative standard deviations were 2.3%-5.4%(n=5). The enrichment factors ranged from 12.6 to 38.5 folds. The average recoveries ranged from 97.5% to 114.8%. The four kinds of furocoumarin compounds in Radix Angelicae dahuricae and Yuanhu Zhitong tablet were determined by the proposed method with satisfactory results.