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Object To study on the genetic diversity and genetic structure of Iphigenia indica Kunth. Methods Random amplified polymorphic DNA (RAPD) was applied to detect DNA fingerprints of three populations of I. indicafrom Yunnan Province. Results Twenty primers were screened, and a total of 120 DNA fragments were amplified ranging from 0.2-3 kb, among which 71 (59.17%) were polymorphic. The average number of DNA band produced by each primer was 3.55. The Shannon index was (0.199 4) in Ca population, 0.200 7 in Cb population, 0.254 8 in Cc population, respectively; the average value of populations was 0.218 3. The Shannon index was 0.288 6 in species. Nei's genetic identity was 0.930 9 between Ca and Cb, 0.932 7 between Ca and Cc, 0.946 6 between Cb and Cc. G_(st) within population was (0.204 4.) Conclusion For the establishment of protective tactic and measure, and of the standard of good agriculture practice (GAP) growth and heredity breeding, RAPD analysis provides I. indicawith theoretical foundation and basal data.

Blood-brain barrier is a natural protection for human body. It protects central nervous system from the interruption and damage of xenobiotics. However, it prevents potential drugs aimed at central nervous system, thus becomes an obstruction for the development of central nervous system drugs. The recent development of blood-brain barrier permeability research and several lead optimization strategies to improve blood-brain barrier permeability are reviewed. These structure optimization methods include increasing lipophilicity, reducing hydrogen bond doners, simplifying molecule, increasing rigidity, lowering polar surface area, avoiding acid group, prodrug strategy, modifying into active transporter's substrates, as well as avoiding P-glycoprotein recognized structures.

Blood-brain barrier is a natural protection for human body. It protects central nervous system from the interruption and damage of xenobiotics. However, it prevents potential drugs aimed at central nervous system, thus becomes an obstruction for the development of central nervous system drugs. The recent development of blood-brain barrier permeability research and several lead optimization strategies to improve blood-brain barrier permeability are reviewed. These structure optimization methods include increasing lipophilicity, reducing hydrogen bond doners, simplifying molecule, increasing rigidity, lowering polar surface area, avoiding acid group, prodrug strategy, modifying into active transporter's substrates, as well as avoiding P-glycoprotein recognized structures.
ATP-Binding Cassette, Sub-Family B, Member 1 ; metabolism ; Biological Transport ; Blood-Brain Barrier ; Central Nervous System ; drug effects ; Central Nervous System Agents ; pharmacokinetics ; Drug Design ; Humans ; Permeability ; Xenobiotics ; adverse effects

AIM:To evaluate the efficacy and safety of methazolamide in treating refractory uveitic macular edema.METHODS: Retrospective self-controlled study was designed.A total of 15 patients (20 eyes) with refractory uveitic macular edema which used methazolamide as adjuvant therapy were enrolled in Shanghai First People`s Hospital from January 2015 to June 2016.The changes of central macular thickness (CMT) and best corrected visual acuity (BCVA) were observed at baseline and 2, 4, 8wk after treatment.We also focused on the incidence of complications and relapse.RESULTS: The CMT was 445.95±154.10μm, 338.83±138.34μm, 251.50±40.20μm, 244.90±35.68μm at baseline, 2, 4 and 8wk after treatment, respectively.The differences among them were statistically significant (F=15.467, P<0.05).The BCVA (log MAR) were 0.40±0.17, 0.28±0.21, 0.19±0.20, 0.18±0.21 at baseline, 2, 4 and 8wk respectively, with a significant difference among them (F=5.208, P<0.05).When the cumulative dose reached to 700mg and 1400mg, no one had methazolamide-related complications;and when it came to 2800mg, 5 patients (33%) had methazolamide-related complication.After the withdrawal of methazolamide 1wk, 1 and 3mo, 3 patients (20%), 5 patients (33%) and 8 patients (53%) relapsed, respectively.CONCLUSION: Methazolamide is beneficial in improving macular edema and vision in 4wk.When the cumulative dose is more than 1400mg, we need pay attention to the complications.After discontinuing methazolamide for 1wk, macular edema relapsed in some patients, and more than half of patients recurred after 3mo.So the patients should be followed closely in 3mo after withdrawal of methazolamide.

[Summary] This paper reported the surgical cooperation in 72 cases of da Vinci robot operations between September 2014 and December 2014 in this hospital .All the 72 cases of total laparoscopic operation by using the da Vinci robot assistance were successfully completed, without robot faults caused by mismatch and nursing complications caused by improper nursing .We believe that nurse training with robot surgical system and qualification certification , preoperative patient visits , reasonable arrangement of operation room , careful observation with skilled coordination with the robot , proper postoperative placement of the robot , and maintenance and disinfection of the machine are crucial to a successful surgery .

Objective To explore the relationship between respiratory viruses infection and the episode of steroid responsive simple nephrotic syndrome(SRSNS).Methods Thirty-eight children with SRSNS were selected,including the active stage group(n=28)and the remission group(n=10).The urine from 18 cases of nephritic nephrosis,16 cases of bronchiolitis,15 cases of secondary glomerular diseases and 15 cases of healthy children were served as controls.By using the method of reverse transcriptase-polymerase chain reaction(RT-PCR)and alkaline phosphoesterase-anti alkaline phosphoesterase enzyme-linked assay(APAAP),viral genes and antigens in urine were assayed,respectively.Results The positive rate of detecting viruses in the active stage group of SRSNS children was higher than that in the remission group and the other control groups(Pa

Objective To develop a new multi-purpose face mask for oxygen provision in first aid,which can be used in both war time and peace time.Methods The structure,operating principle and application of a multi-purpose face mask,whose transparent silicone mask body has even the entrance of nested endoscopy and oxygen concentration regulating twist,are introduced in this paper.Results This mask can be used in painless endoscopy and emergent oxygen supply in tracheal intubatton.Conclusion The mask can greatly enhance the safety of painless endoscopy and it can also be used as mask for the use of general anesthesia.

AIM: To discuss the application of overlapping ratio to the fingerprints of plant and plant extract. METHODS: We took the HPLC fingerprints of green tea and tea polyphenols for decision procedure. RESULTS: Overlapping ratio could be applied to selecting representative samples for characteristic fingerprints of green tea and tea polyphenols,and could be used to deduce the raw material,process and producer of tea polyphenols.(CONCLUSION:) Overlapping ratio can be used to choose the suitable samples for establishing the characteristic fingerprint spectrum,and can supply references to relationship investigation among products,raw material and process.