Objective To investigate the effect of alanyl-glutamine (Ala-Gln) on acute lung injury (ALI) in rats induced by sepsis and its mechanisms. Methods Forty healthy adult Wistar rats were randomly divided into a control group, a lipopolysaccharide (LPS)-induced shock group, an Ala-Gln treated group, and a glutamine (Gin) treated group. The control group received an intravenous infusion of 28 mL/kg lactated Ringer's solution(LR). The LPS-induced shock group received an intravenous administration of 25 mL/kg LR, and then 3 mL/kg (6 mg/kg) LPS (L-2880, Sigma, America). The AlaGin treated group received 4.5% Dipeptiven (25 mL/kg, equaling 0.75 g/kg Gin) immediately before 3 mL/kg (6 mg/kg) LPS. The Gin treated group received 3% glutamine (25 mL/kg, 0.75g/kg) immediately before 3 mL/kg (6 mg/kg) LPS. Serum (1 mL) was drawn via the femoral vein or cardiac puncture before LPS injection (T0) and 6 h after the administration of LPS (T1), respectively. All rats were killed 6 h after LPS infusion. The samples of pulmonary tissue and lung lavage fluid were collected after experiments. Tumor necrosis factor-α (TNF-α), interleukin-1β( IL-1β), and interleukin-8(IL-8) in the serum at T0 and T1 were detected by ELISA. Apoptosis in the lung epithelial cells was detected with TUNEL assays. The lung wet/dry(W/D) weight ratio and total protein in the bronchoalveolar lavage fluid (BALF) were measured. Results Six hours after the infusion of LPS (T1), the plasma concentrations of TNF-α, IL-1β, and IL-8 were much lower in the Ah-Gln treated group and the Gin treated group than those in the LPS-induced shock group (P < 0.05). Compared with the LPS-induced shock group, AlaGin and Gin significantly reduced the increase in the lung wet/dry weight ratio (P<0.05) and attenuated the morphological lung damage. Conclusion Intravenous administration of Ala-Gha can effectively protect the lung from sepsis induced injury.

Object To study the lipoidal constituents in Setaria italica (L ) Beauv Methods Individual compounds were isolated by chromatography and their structures elucidated by spectral analysis Results Two lipoidals were further isolated They were identified as glycerol-?, ?-dilinolenate-?′-rhamno-rhamnoside (Ⅰ) and 1-monoolein (Ⅱ) Conclusion The two compounds were obtained from this plant for the first time and compound Ⅰ is a new compound

The author found a lot application of traditional Chinese kernel medicine in hairdressing formulae from book of Waitai Miyao Fang, and thus made an exploration on it.

Objective To investigate the correlation of preoperative pain threshold and pain tolerance threshold with the intensity of stress reaction induced by endotracheal intubation and skin incision. Methods Fifty ASA Ⅰ or Ⅱ women, aged 20-55 yr, undergoing elective abdominal surgery requiring at least a 10-cm-long skin incision under general anesthesia, were studied. The electricity dolorimeter was used to measure the patients' pain sensitivity, including pain threshold and pain tolerance, and a State Trait Anxiety Inventory (STAI) was also used to examine the mental state the day before surgery. Total intravenous anesthesia was performed in all the patients.Anesthesia was induced with TCI of propofol 4 μg/ml (effect-site concentration). After patients lost consciousness,fentanyl 3 μg/kg and vecuronium 0.1 mg/kg were injected intravenously. Tracheal intubation was performed 3 min later and the patients were mechanically ventilated. MAP and HR were recorded and arterial blood samples were taken for determination of plasma concentrations of norepinephrine (NE) at 10 min after entering operation room (T1), immediately before intubation (T2), 2 min after intubation (T3), immediately before incision (T4) and 2 min after incision (T5). The differences in MAP, HR and plasma concentrations of NE before and after intubation and skin incision were calculated. SPSS 13.0 statistical software was used to analyze the correlation of STAI,pain threshold, and pain tolerance threshold with the differences in MAP, HR and NE before and after intubation and skin incision. Results Pain threshold was not correlated with the differences in MAP, HR and NE (P ＞0.05). Pain tolerance threshold was negatively correlated with the differences in MAP (r= - 0.766, r =-0.688,P＜0.05), HR (r=-0.703, r=-0.638, P ＜ 0.05) and NE (r=-0.781, r=-0.781, P＜0.05). The STAI score was not correlated with pain threshold and pain tolerance threshold (P ＞ 0.05) .Conclusion Preoperative pain tolerance threshold is negatively correlated with the intensity of stress reaction induced by endotracheal intubation and skin incision, but there is no correlation between pain threshold and the intensity of stress reaction.

To study the lipoidal constituents of Setaria italica Beauv..Methods　The constituents were isolated by chromatography and structurally elucidated on the basis of spectral analysis.Results　The three glycerides were isolated as dilinolein (Ⅰ)， monolinolenin (Ⅱ)，α, β-digalactosyl-α′-linolenic-glyceride (Ⅲ).Conclusion　These compounds were obtained from the plant for the first time. Compound Ⅲ is a new glycolipin.

Objective To study the effect of Bupi-Qufeng decoction on total serum IgE (TIgE) and EOS counts of atopic dermatitis (AD).Methods A total of 101 cases were randomly recruited into a treatment group and a control group.During the treatment both groups were give Danggui-Bohe ointment for external use,and based on this,oral Bupi-Qufeng decoction was added in the treatment group and loratadine in the control group.TIgE level and EOS count were detected both before the treatment and four weeks after the treatment.Results TIgE in the treatment group decreased significantly after the treatment (t=8.0063,P＜0.001),the decreased value of which was larger than the control group (t=3.6434,P＜0.001).EOS count in the treatment group also obviously decreased after the treatment (t=3.0314,P＜0.01) ; the decreased value of which was also larger than the control group (t=3.3331,P＜0.01).Conclnsion Bupi-Qufeng decoction could decrease TIgE and EOS level of AD patient,while the therapeutic mechanism needed further research.

Objective To evaluate the synergy effect of Meropenem and Sulbactam combination against Meropenem-resistant and Meropenem-susceptible A.baumannii in vitro and optimize combination ratio of Meropenem and Sulbactam to achieve best synergy effect.Methods Evaluating the synergy effect of Meropenem and Sulbaetam combination through microdilution checkerboard method against Meropenemresistant and Meropenem-susceptible A.baumannii,isolated from inpatients of Chinese hospitals.Assessing the synergy effect of combination in different ratios of Meropenem to Sulbactam.Results The checkerboard method with the combination of Meropenem and Sulbactam demonstrated 25.0％ ( 10/40 ) synergism,67.5％ (28/40) partial synergism,7.5％ (3/40) additive,no indifference and antagonism in Meropenemsusceptible isolates,and 27.5％ (11/40) synergism,40.0％ (16/40) partial synergism,25.0％(10/40) additive,no indifference and antagonism in Meropenem-resistant isolates.Eleven Meropenemresistant isolates which showed synergism in synergy test were tested for MICs of combination of Meropenem and Sulbactam,using ratios of 4∶ 1,2∶ 1,1∶1 and 1∶2,and the MIC90 were 64∶ 16,64∶ 32,32∶32,32∶64 μg/ml,respectively.Conclusions Meropenem and Sulbactam combination show synergism or partial synergism against most A.baumannii isolates.The optimal ration of combination for clinical use may be 1∶ 1.

During the COVID-19 outbreak,the fever sentinel clinics were set up in Shanghai community health service institutions, based on the experience of Public Health Preparedness Clinic (PHPC) in Singapore. It is a successful case of rapidly transforming existing medical resources into the emergent use for epidemic prevention and control. This article summarizes the necessity and feasibility of setting up a fever sentinel clinic; the functional orientation, hardware and software configuration and operation mechanism of the fever sentinel clinic in different periods according to the operation results. Meantime, the article also proposes suggestions for future improvement of establishing fever sentinel clinic in different regions in China.

Aim To establish an analytical method for determination of compound G004 concentration in plasma and investigate its application to pharmacokinetics and absolute bioavailability in rats.Methods 5.0 and 2.5 mg?kg~(-1) compound G004 were given via ig and iv respectively to SD rats.Blood samples were collected at various time points after administration.Plasma concentration of compound G004 in rats was determined by LC-ESI-MS.Pharmacokinetic parameters were calculated by DAS program and absolute bioavailability was also calculated.Results The method was linear over the range of 0.02～5 mg?L~(-1)(r~2=0.9995).The recovery of compound G004 in rat plasma was more then 87%.Intra-and inter-day precision,expressed as the relative standard deviation(RSD) was less than 15%.After iv compound G004,the main pharmacokinetic parameters T_(2),CLs,V_d,AUC_((0-∞)) were(1.91?0.65) h,(0.36?0.22) L?h~(-1),(0.78?0.36) L ?kg~(-1),(9.52?3.53) mg?L~(-1)?h~(-1) respectively.The major pharmacokinetic parameters T_(max),C_(max),T_(2),AUC_((0-∞)),MRT_((0-12h)) were 0.83 h,(3.33?0.80) mg?L~(-1),(1.77?0.21) h,(10.04?2.43) mg?L~(-1)?h~(-1) and(2.75?0.31)h after ig compound G004.The absolute bioavailability was 52.69% after correction of dosage.Conclusion The method is sensitive and specific which is applicable to pharmacokinetic analysis of compound G004 in rats.

BACKGROUND: Dopamine is closely associated with occurrence of epilepsy and transmission in central nerval system, and its various functions are determined by specific receptors.OBJECTIVE: To establish temporal epilepsy model so as to probe into the influences of SCH23390, the antagonist of dopamine D1 receptors and haloperidol, the antagonist of dopamine D2 receptors injected in substantia nigra on temporal epileptic seizure induced by kainic acid and on electroencephalic activityDESIGN: Randomized controlled verified experiment.SETTING: Neurology Medicine Institute of Zhujiang Hospital Affiliated to Southern Medical University.MATERIALS: The experiment was performed in General Military Neurology Medicine Institute of Zhujiang Hospital Affiliated to First Military University of Chinese PLA from August to December 2004, in which, 30SD adult male rats were employed, massed varied from 250 to 300 g.METHODS: ① 30 rats were randomized into physiological saline (control) group (6 rats), kainic acid (KA) group (6 rats) and experimental group (18 rats). The experimental group was divided into 3 subgroups, named the antagonist of dopamine D1 receptors, SCH23390 + kainic acid group (D1 +KA group), the antagonist of dopamine D2 receptors,haloperidol + kainic acid group (D2+KA group) and physiological saline + kainic acid group (PS + KA group), 6 rats in each. In the control, physi ological saline 2 μL was injected in the right cerebral ventricle unilaterally. In KA group, kainic acid 2 μL was injected in the right ventricle. In each of experimental group, SCH23390, the antagonist of dopamine D1 re ceptors, haloperidol, the antagonist of dopamine D2 receptors and physio logical saline 1 μL for each was injected in substantia nigra on the right side successively and simultaneously, kainic acid 2 μL was injected in the right ventricle. ② Observed items: alters of EEG on the 0.5th 1st, 2nd, 6th and 24th hours after medication in each experimental group (compared with EEG of non-epileptic behavior, appearance of sharp wave, spike wave,sharp (spike) slow comprehensive wave and multi-spike slow wave determines epileptic activity) and changes in animal behaviors (0 grade: normal; Ⅰ grade: wet dog-like trembling, paroxysmal facial spasm, like winking,beard moving, rhythmic chawing; Ⅱ grade: rhythmic nodding; Ⅲ grade:paroxysmal spasm of anterior limbs; Ⅳ grade: paroxysmal spasm of bilateral anterior limbs when standing; Ⅴ grade: falling down, loss of balance and convulsion of four limbs). Cerebral hippocampal neural cell apoptosis was observed and the rats were sacrificed on the 5' day of medication. Cerebral hippocampal section was prepared and determined after in situ end labeling staining.MAIN OUTCOME MEAUSRES: ① Changes in behavior in rats before and after epilepsy and electroencephalogram (EEG) alters. ② Results of cerebra hippocampal neural cell apoptosis.RESULTS: Thirty rats entered result analysis. ① Epilepsy seizure: In the control group, there was no epilepsy attacked. In KA group, all of rats ap pear seizure, which attacked 10 minutes after KA injected in brain ventricle, reached the peak in 1 hour and stopped in 3 to 6 hours. ② EEG record: In the control group, there was not epileptic activity manifestations,like sharp wave, spike wave, spike slow comprehensive wave, etc. In KA group, epileptic wave presented in 10 minutes after injection, the seizure developed to the peak in about 1 hour, the wave amplitude was decreased in 3 to 6 hours, presenting paroxysmal slow and spike slow waves and no epileptic wave appeared after 12 hours. ③ Neuronal apoptosis: In the control group, few neural cell apoptosis was visible in hippocampus after injection.In KA group, neural cell apoptosis was visible obviously in hippocampus in 5 days after injection (P =0.00). With SCH23390, the antagonist of dopamine D1 receptors, hippocampal cell apoptosis was not reduced remarkably (P ＞0.05) and with haloperidol, the antagonist of dopamine D2 receptors injected in substantia nigra, hippocampal cell apoptosis was aggravated (P =0.00).CONCLUSION: Injection of SCH23390, the antagonist of dopamine D1 receptors in substantia nigra cannot block kainic acid inducing epilepsy and epileptic electroencephalic activity is not weakened remarkably. Injection of haloperidol,the antagonist of dopamine D2 receptors enhances epileptic electroencephalic activity in kainic acid induced epilepsy and increases cell apoptosis remarkably in cerebral hippocampal CA3 area.It is to explain that it is dopamine D2 acceptor that is involved in regulation of temporal epilepsy in substantia nigra rather than D1 acceptor.