3' Untranslated Regions ; genetics ; 5' Untranslated Regions ; genetics ; Enterovirus B, Human ; genetics ; Genome, Viral ; genetics ; Humans ; Poly A ; genetics

Objective To discuss perioperative features, operative approach and surgical effects of spinal tuberculosis in older patients. Methods Retrospective analysis was conducted to analyze the clinical data of 45 patients with spinal tuberculosis ranging in age from 61 to 78 years (average, 67 years). The lesion was located in thoracic vertebrae in 9 patients, thoracolumbar vertebrae in 14, lumbar in 16, and lumbosacral in 6. Preoperative Frankel grades were B in 7 cases, C in 21, D in 11 and E in 6. Among them, 21 had cardio-cerebrovascular disease, 10 had diabetes mellitus. With preoperative medicine and chemotherapy for 2-3 weeks, all patients were treated surgically. The surgical procedures included: 1) Posterior focus debridement, bone grafting and one-stage posterior transpedicular screw system fixation in thoracic vertebrae (T2-T7). 2) Anterior debridement, bone grafting and one-stage posterior transpedicular instrumental fixation in lumbosacral vertebrae (L5-S1). 3) Anterior focus elimination, bone grafting and one-stage anterior plate fixation in the other vertebrae. Results Forty-five patients were followed up for 24 to 40 months, with the average of 28.5 months. No severe complication occurred during and after operation. Forty-four cases had recovered and 1 recurred. Spinal fusion occurred 12-18 months after operation. Frankel neurological grades improved significantly. Conclusion With the effective management of comorbidities in perioperative period,the elderly could tolerate surgical treatment. The appropriate approaches, thorough debridement and reasonable bone grafting with internal fixation are key to therapeutic success.

Malignant tumor is one of the main causes for death in the world at present as well as a major disease seriously harming human health and life and restricting the social and economic development. There are many kinds of reports about traditional Chinese medicine patent prescriptions, empirical prescriptions and self-made prescriptions treating cancer, and prescription rules were often analyzed based on medication frequency. Such methods were applicable for discovering dominant experience but hard to have an innovative discovery and knowledge. In this paper, based on the traditional Chinese medicine inheritance assistance system, the software integration of mutual information improvement method, complex system entropy clustering and unsupervised entropy-level clustering data mining methods was adopted to analyze the rules of traditional Chinese medicine prescriptions for cancer. Totally 114 prescriptions were selected, the frequency of herbs in prescription was determined, and 85 core combinations and 13 new prescriptions were indentified. The traditional Chinese medicine inheritance assistance system, as a valuable traditional Chinese medicine research-supporting tool, can be used to record, manage, inquire and analyze prescription data.
Drug Prescriptions ; Humans ; Medicine, Chinese Traditional ; Neoplasms ; drug therapy

According to the designed specific primers of gene fragment based on the Salvia miltiorrhiza transcriptome data, with the method of reverse transcription polymerase chain reaction (RT-PCR), this study cloned full-length cDNA sequence of 1-hydroxy-2-methyl-2-(E)-butenyl-4-diphosphate synthase gene from Salvia miltiorrhiza bge.f.alba, this sequence is named as SmHDS and its GenBank registration number is KJ746807. SmHDS, 2 529 bp long, contains an ORF of 2 229 bp, encodes 742 amino acids, including 5' UTR 170 bp and 3' UTR 130 bp. Using bioinformatics software, having made a homology analysis of the obtained sequence, we can have a conclusion that SmHDS have a close genetic relationship with HDS of Salvia miltiorrhiza. Analysis result of prokaryotic expression revealed that in Escherichia coli, SmHDS expressed target proteins which in size are comparable with the protein predicted. Meanwhile, the 4 factors which can influence the protein expression were optimized, the 4 factors are inducing temperature, inducing time, IPTG concentrations and density of inducing host bacterium (A600). The optimal expression conditions of SmHDS were 30 degrees C until the A600 is 0.6, and add IPTG to a final concentration of 0.2 mmol x L(-1), and the induction time of 20 h. It provides theoretical basis for the further study of the function of 1-hydroxy-2-methyl-2-(E)-butenyl-4-diphosphate synthase in the biosynthesis of tanshinone compounds.
Cloning, Molecular ; DNA, Complementary ; genetics ; Diterpenes, Abietane ; biosynthesis ; Enzymes ; biosynthesis ; genetics ; Escherichia coli ; metabolism ; Plant Proteins ; biosynthesis ; genetics ; Salvia miltiorrhiza ; enzymology ; genetics

Objective To investigate dental caries in 3-year-old children in Jing′an District of Shanghai and analyze the influence of oral cleaning behavior on caries in children. Methods Six hundread 3-year-old children from 12 kindergartens in Jing′an District, Shanghai were randomly selected by cluster sampling method for oral examination, and a self-administered questionnaire survey on children′s oral cleaning behavior was completed by parents.SPSS 22.0 software package was used for statistical analysis. Results Among the 600 children, the prevalence of dental caries was 42.50%, and the average dmft index was 1.76±2.92.Children who did not brush their teeth had a statistically significant increase in rate of dental caries(χ²=29.995, P < 0.001).Children who brushed their teeth for more than three minutes each time had a statistically significant lower rate of caries(χ²=3.918, P=0.048).Children whose parents helped their children brush their teeth every day had a lower rate of caries than those who brushed teeth by themselves, and the difference was statistically significant (χ²=8.718, P=0.013).Logistic regression analysis showed that age of beginning brushing teeth, times of brushing teeth per day and length of brushing teeth per time were all influence factors for caries in children (P < 0.05). Conclusion For the prevention and control of dental caries in 3-year-old, proper oral cleaning behavior is very important.We should make parents as a priority group for doing oral hygiene in children.Schools should strengthen oral health education for parents.Medical institutions should guide and monitor the effectiveness of oral hygiene in children.It is important to reduce the rate of dental caries in preschool children from three aspects:family, school and medical institutions.

Objective To investigate the efficacy of combined monitoring of motor evoked potentials with transcranial electrical stimulation (TES-MEP),somatosensory evoked potentials (SEP) and spontaneous electromyo-graphy (s-EMG) in tuberculosis surgery involving the thoracic,lumbar and sacral vertebrae.Methods Twenty-seven patients with tuberculosis of the thoracic vertebrae (T2-L2) received intra-operative SEP and TES-MEP monito-ring.Combined SEP,TES-MEP and spontaneous EMG monitoring were employed in 11 patients with tuberculosis of the lumbar or/and sacral vertebrae (L3-S1).SEP and TES-MEP were used to precisely observe the status of the sen-sory and motor pathways; s-EMG responses were used to more accurately localize nerve root irritation.ResuIts (1) SEP monitoring was successful in all of the operations.TES-MEPs were successfully monitored in 35 of them (92.1％).Combined motor and sensory monitoring was successfully achieved in 35 cases (92.1％).Abnormal SEPs were observed in 3 cases (7.9％),while abnormal MEPs were observed in 11 cases (28.9％).Abnormality in both the SEP and TES-MEP occurred in 2 cases (5.3％).There were 9 cases (23.7％) where the SEPs were nor-mal and the TES-MEPs were abnormal.In only 1 case (2.6％) was the SEP normal and the MEP abnormal.The false negative rate was 0％ with combined SEP and TES-MEP monitoring,while the false positive rate was 5.3％.There were 2 cases complicated by post-operative neurological deficits.(2) Spontaneous EMG monitoring can accu-rately determine the functioning of lumbar nerve roots during lumbar or lumbosacral tuberculosis surgery.Among 5 cases where EMG responses were observed,4 cases occurred during the spinal canal and nerve root decompression,1 case occurred in the orthopedic reset phase.Conclusions (1) During tuberculosis surgery involving thoracic,lumbar or sacral vertebrae,combined monitoring of SEPs and TES-MEPs can reflect the physiological and pathological condition of the spinal cord after ruling out interfering factors.This can improve monitoring and help assure the safety of lumbar surgery.(2) Intra-operative s-EMG monitoring can accurately reveal nerve root function in real time,help-ing to avert nerve root injury in lumbar and lumbosacral tuberculosis surgery.

The author introduces the basic concepts of microsatellite and population genetics and its characteristics, expounds the application of these theories for population genetic structure and genetic diversity, gene flow and evolutionary significant unit ESU division research. This paper discuss its applicationin study of genetic causes, origin of cultivation, different regional origins of geoherbs, aiming at providing a new theory and method for geoherbs.
Drugs, Chinese Herbal ; Evolution, Molecular ; Genetic Markers ; genetics ; Genetic Techniques ; Geography ; Microsatellite Repeats ; genetics

To explore the facilitation of nociceptive response by dynorphin (Dyn ) A in a model of formalin test in rats, the effects of single intrathecal injection (i.t.) of normal saline (NS), MK-801 (antagonist of NMDA receptor), naloxone (antagonist of opioid receptor), or Dyn A (1-17) were observed, and the effects of i.t. MK-801 or naloxone followed by i.t. Dyn A (1-17) were observed as well. The nociceptive licking and biting induced by injection of formalin exhibited two phases. The first phase lasted for a relatively short period of 3-9 min, and the second phase lasted for a relatively longer period after a 3 to 6- min quietness. The results showed that there were no differences in the first phase in all groups; however, there were differences in the second phase as follows: (1) the duration of nociceptive response was significantly increased in Dyn A (1-17) group (489.5+/-22.5 s) as compared to that of NS group (344.7+/-12.9 s), MK-801 group (331.4+/-20.7 s) or naloxone group (352.5+/-18.4 s) (P<0.01 in three cases); (2) the duration of nociceptive response was significantly shortened in MK-801 plus Dyn A (1-17) group (285.7+/-19.4 s) as compared to that of Dyn A (1-17) group (P<0.01), but there were no significant differences as compared to that of MK-801 group; and (3) there was no significant difference in the second phase between naloxone plus Dyn A (1-17) group (473.8+/-17.8 s) and Dyn A (1-17) group, but the duration of nociceptive response was longer than that of NS group or naloxone group (P<0.01 in both). The results obtained suggest: (1) at the spinal cord, Dyn A (1-17) facilitates nociceptive responses; (2) NMDA receptors, but not opioid receptors, are possibly involved in the nociception by Dyn A (1-17).
Animals ; Dizocilpine Maleate ; pharmacology ; Dynorphins ; pharmacology ; Formaldehyde ; Injections, Spinal ; Naloxone ; pharmacology ; Nociceptors ; physiology ; Pain ; chemically induced ; physiopathology ; Rats ; Receptors, N-Methyl-D-Aspartate ; antagonists & inhibitors ; physiology

OBJECTIVETo determined hydrogen selenide in workplace air with atomic fluorescence.

METHODHydrogen selenide were sampled with 0.1 mol/L sodium hydroxide solution in multi-hole absorbing tubes. The sampled absorbing solution were digested with (9+1) nitric acid/perchloric acid. The selenide in sample were reduced by potassium borohydride in 5.0% hydrochloride solution and determined with atomic fluorescence.

RESULTSThere was a good linearity (r=0.9999) over the concentration of 0-150 microg/L, The precision of low, middle and high concentration were 3.1%, 7.4% and 6.7%, respectively. The sample collection rate can reach 99%.

CONCLUSIONThe method was accurate and sensitive to detect hydrogen selenide in workplace air.

The study is aimed to distinguish morphological characteristics of Dalbergiae Lignum collected from crude drug's markets and establish a identification methods and the quality standard for Dalbergiae Lignum. The macroscopic and microscopic features of Dalbergiae Lignum from crude drug's market were observed, analyzed and compared according to Hongmu specification issued by the People's Republic of China in 2000, and by the characteristics recorded in domestic monograph of Mucai Shibie (wood identification). The redwood of Dalbergiae Lignum cut into small pieces as medicinal material are dry heart wood of mahogany (trees from Dalbergia sp.), which characteristics of the small pieces as crude drug are different. There are differences in macroscopic and microscopic features about texture of wood and color, odor, taste, transverse section, radial section, tangential section. The results can provide basis for identification, application and improment of the quality standard of Dalbergiae Lignum as medicinal material.
China ; Dalbergia ; anatomy & histology ; chemistry ; classification ; Herbal Medicine ; economics ; Plants, Medicinal ; chemistry ; classification ; Quality Control ; Xylem ; anatomy & histology ; chemistry