Adrenergic beta-Agonists ; therapeutic use ; Aged ; Albuterol ; analogs & derivatives ; therapeutic use ; Bronchi ; drug effects ; physiopathology ; Bronchodilator Agents ; therapeutic use ; Coal Mining ; Humans ; Male ; Middle Aged ; Pneumoconiosis ; drug therapy ; physiopathology ; Respiratory Function Tests ; Salmeterol Xinafoate ; Treatment Outcome

The ECG sample system which is based on Microsoft Windows98/95 and IBM-compatible PCs ISA bus,is introcluced here.It includes ECG sample device,virtual device driver(VxD) and application program,By the method,we can design the device simply and make good use of the computer to programming powerful auto recognition software and telediagnosis software.The system is a cheap and mini medical apparatus.Applications in family care and community medical treatment are encouraging.

·AIM: To evaluate meibomian gland dysfunction (MGD) after phacoemulsification surgery,and to discuss the potential impact of ocular surface. ·METHODS: A perspective, self-controlled clinical trial was conducted. Fifty-six eyes of 56 patients with MGD underwent phacoemulsification and were evaluated the ocular surface disease index (OSDI), meibography score,lid margin abnormalities, Schirmer test, tear film break - up time ( BUT ) at preoperatively and postoperatively 2wk,1 and 3mo. ·RESULTS: Schirmer test did not change significantly postoperatively ( P > 0. 05 ). The OSDI scores, meibography score, lid margin abnormalities increased at 2wk, 1 and 3mo postoperatively compared to before operation (all P<0.05);BUT decreased (P<0.05). · CONCLUSION: Meibomian gland function may be aggravated after phacoemulsification surgery.

Humans ; Genetic Markers ; Family ; DNA Fingerprinting ; Microsatellite Repeats/genetics*

Objective is designed to observe the effect of the low molecular protein "SL Hong-Xin Blood-Increasing Capsules" on human iron deficiency anemia. Altogether 110 school children, 7 - 12 years old, with iron deficiency anemia (Hb < 120 g/L) were enrolled in this trial and were randomly and evenly divided into two groups. In the treatment group (n = 55), the "SL Hong-Xin Blood-Increasing Capsules" were orally adminitered for 30 days, two capsules at one time and two times a day, whereas in the control group (n = 55) blank capsules were given to the children in the same way as in the treatment group. Before and at the end of the trial period, peripheral blood samples were taken from fringers of the children to determine Hb content, hematocrit percentage, and free protoporphyrin content in red blood cells. Results showed that after trial the Hb content was (15.9 +/- 9.6) g/L in the treatment group, while that of the control group was only (5.3 +/- 4.3) g/L (P < 0.001). The hematocrit percentage markedly increased (P < 0.001) and protoporphyrin level markedly decreased (P < 0.001). In conclusion the active ingredient of "SL Hong-Xin Blood-Increasing Capsules" is low molecular protein iron, which is markedly effective for elevating Hb content and hematocrit percentage, and effective for decresing protoporphyrin content of children with iron deficiency anemia. Hence, the capsules could be used to improve nutritional anemia in children based on the "Functional Evaluation Procedure and Test Methods For Health-Care Food".

To establish an HPLC-MS/MS method for the analysis of quercetin, kaempferid and isorhamnetin in rats plasma and study its pharmamacokinetics after an intragastrical administration of Hippophae rhamnoides extracts. Five healthy male Sprague-Dawley (SD) rats were given single doses of H. rhamnoides extracts (quercetin 26.35 mg x kg(-1), kaempferid 4.040 mg x kg(-1), isorhamnetin 31.37 mg x kg(-1)), and then their orbital sinus blood samples were collected at different time points. The drug plasma concentration of the three flavonoids was determined by HPLC-MS/MS method. After that, the main pharmacokinetics parameters were calculated by using Kinetica 5. 0. 11 software. The methodological test showed that the linear concentration ranges of quercetin, kaempferid and isorhamnetin were 7.500-600.0 μg x L(-1) (R2 = 0.998 5), 1.000-80.00 μg x L(-1) (R2 = 0.998 5 ) and 10.00-800.0 μg x L(-1) (R2 = 0.998 0), respectively. The inner and inter-days precisions were both less than 14.0%. The plasma samples showed a good stability and consistency with the requirement of biological sample analysis after the samples were frozen once and placed at - 20 degrees C for 15 d and room temperature for 6 h and the treated analytes were placed at -20 degrees C for 24 h. For quercetin, the pharmacokinetic parameter t(½β), AUC(0-∞), MRT(0.∞), C.(max) and T(max) were (113.3 ± 19.37) min, (12 542.14 ± 3 504.05) μg x h x L(-1), (119.6 ± 13.29) h, (164.6 ± 27.33) μg x L(-1) and (5.199 ± 0.840 3) h, respectively. For kaempferid, the pharmacokinetic parameters t(½β), AUC(0-t), MRT(0-∞), C(max) and T(max) were (79.85 ± 17.15) min, (934.51 ± 94.59) μg x h x L(-1), (81.50 ± 13.75) h, (80.15 ± 14.24) μg x L(-1) and (3.827 ± 0.902 7) h, respectively. For isorhamnetin, the pharmacokinetic parameters t1,2,, AUC(0-t), MRT(0-∞), C(max) and T(max) were (118.3 ± 20.73) min, (26 067.77 ± 4 124.60) μg x h x L(-1), (129.0 ± 16.30) h, (269.6 ± 29.32) μg x L(-1) and (6.513 ± 1.450) h, respectively. The HPLC-MS/MS analysis method established in this study was proved to be sensitive and accurate and could be applied in the pharmacokinetic study of quercetin, kaempferid and isorhamnetin in rat plasma.
Animals ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; analysis ; pharmacokinetics ; Hippophae ; chemistry ; Kaempferols ; blood ; pharmacokinetics ; Male ; Quercetin ; analogs & derivatives ; blood ; pharmacokinetics ; Rats ; Rats, Sprague-Dawley ; Tandem Mass Spectrometry ; methods

0.05).CONCLUSION MPR images could objectively and accurately demonstrate the shape of the PPF communications and their adjacent structures.

Objective To evaluate the effectiveness and safety of a sodium hyaluronate-containing dressing for skin wound healing after Q-switched laser therapy.Methods Sixty-six patients with facial pigmentary disorders were enrolled in this study.After treatment with Q-switched laser,the patients were randomly and equally divided into three groups to apply a sodium hyaluronate-containing dressing,a thermal spring water-containing facial mask and a distilled water-containing facial mask respectively.The dressing or facial masks were externally applied to the face for 15 minutes once immediately after the laser therapy,then,once every night for 14 consecutive days.Inflammatory responses,such as erythema,edema and burning sensation,were measured semi-quantitatively on day 1,3,7 and 14 separately after the laser therapy.The time for skin wound healing and degree of patients' satisfaction were compared among these groups by chi-square test and rank sum test,respectively.Results The sodium hyaluronate-containing dressing and thermal spring watercontaing facial mask were superior to the distilled water-containing facial mask in the improvement of erythema,edema and burning sensation after the laser therapy (all P ＜ 0.05).Compared with the patients applying the thermal spring water-containg facial mask and those applying the distilled water-containing facial mask,those applying the sodium hyaluronate-containing dressing felt better,with significantly increased skin cleanliness,humidity,smoothness,confort degree and overall satisfaction (all P ＜ 0.05).Conclusion The sodium hyaluronate-containing dressing is effective for improving acute inflammatory responses and increasing skin cleanliness,humidity and smoothness after laser therapy.

This paper presents a new kind of collecting and processing system of the sound signal of larynx where double sound cards and software filter are used. The installation of the double sound cards and processing proposal of software are mainly discussed and a new kind of ADC method of dual-channel sound signal is put forward in this paper. This system has the feature of reliable performance, simple installation and easy maintenance.
Algorithms ; Equipment Design ; Humans ; Larynx ; physiology ; Microcomputers ; Signal Processing, Computer-Assisted ; instrumentation ; Software ; Sound ; Speech Production Measurement ; instrumentation

Robust and efficient control of therapeutic gene expression is needed for timing and dosing of gene therapy drugs in clinical applications. Ribozyme riboswitch provides a promising building block for ligand-controlled gene-regulatory system, based on its property that exhibits tunable gene regulation, design modularity, and target specificity. Ribozyme riboswitch can be used in various gene delivery vectors. In recent years, there have been breakthroughs in extending ribozyme riboswitch's application from gene-expression control to cellular function and fate control. High throughput screening platforms were established, that allow not only rapid optimization of ribozyme riboswitch in a microbial host, but also straightforward transfer of selected devices exhibiting desired activities to mammalian cell lines in a predictable manner. Mathematical models were employed successfully to explore the performance of ribozyme riboswitch quantitively and its rational design predictably. However, to progress toward gene therapy relevant applications, both precision rational design of regulatory circuits and the biocompatibility of regulatory ligand are still of crucial importance.
Animals ; Cell Line ; Gene Expression ; Gene Expression Regulation ; Genetic Therapy ; Humans ; Ligands ; Models, Theoretical ; RNA, Catalytic ; genetics ; Riboswitch ; genetics