Objective To detect the mutation of STK11 in a family with Peutz-Jeghers syndrome.Methods Genomic DNA was extracted from peripheral blood and harmatoma polypus of all the patients,and 9 exons and noncoding regions of STK11 were amplified by PCR.Cycle sequencing was used to analysis the DNA sequence,and western blot was used to detected the mutational STK11 protein in the harmatoma polypus.Results The 21th codon CAG in exon 5 of STK11 gene transformed to TAG in all the patients,which translated into a truncated STK11 protein.Conclusion This novel mutation is the pathogeny of PJS in this family,which could be an indicator for the diagnosis of PJS in this family.And it may lead to a higher risk of cancer in patients.

Objective To investigate the cooperative antifungal effect of antibacterial peptide MUC7 combined with Bifidobacte‐ria in vitro .Methods The antifungal effect was observed and measured by viable count and the Oxford cup method .Results Two methods exhibited more potent antifungal effect on Candida albicans ,Candida albicans ,Candida krusei and Candida parapsilosis in MUC7 combined with Bifidobacteria group .The colonies′numbers in MUC7 combined with Bifidobacteria group were 2 .00 ± 1 .13 , 2 .00 ± 1 .42 ,5 .00 ± 2 .03 ,2 .00 ± 1 .39 respectively by viable counting ,which was lower than thoes in the saline group and Bifidobacterium group (P<0 .01) ,these two groups were significant lower than those in MUC7 group (P<0 .05);the inhibition zone in MUC7 combined with Bifidobacteria group were (29 .00 ± 2 .17) ,(31 .00 ± 3 .25) ,(29 .00 ± 2 .89) ,(30 .00 ± 3 .36)mm de‐tected by the Oxford cup method ,which showed a significantly difference with the saline group ,Bifidobacterium group and MUC7 group(P< 0 .05) .Conclusion Antibacterial peptide MUC7 combined with Bifidobacterium exhibits good antifungal effect which may provide a foundation for the further research on a new generation of antifungal Bifidobacterium preparation .

Arrhythmias, Cardiac ; complications ; physiopathology ; Atrioventricular Block ; complications ; physiopathology ; Coronary Circulation ; Humans ; Male ; Middle Aged ; Syncope ; complications ; physiopathology

Objective:To explore the optimal postpartum nursing intervention method of elderly second-birth parturient based on the best evidence and evaluate its effect so as to improve the quality of clinical nursing.Methods:Based on the best evidence obtained from the previous study, the optimal nursing examination index of the elderly second parturient was established, and the evidence of best practice was obtained by using the evidence-based nursing method, and the 2017 revised version (the third edition of) Johns Hopkins evidence-based nursing practice model) was used to guide nurses to apply the evidence to clinical practice. During the period from March to May 2019, the baseline review was completed, including 82 pregnant women and 43 nurses. The evidence was incorporated into clinical practice in June 2019. From July to October 2019, the same indicators and inclusion and exclusion criteria were used to evaluate the effectiveness of evidence application in 43 nurses (including midwives) and 85 elderly second-child parturients in obstetric wards (including baby-friendly areas). The anxiety, depression, maternal satisfaction and nurses' correct implementation rate of the best evidence were compared before and after the application of evidence.Results:After the use of evidence-based intervention, the implementation rate of nurses was above 80%. The anxiety score of parturient decreased from 55.29±10.11 to 41.74±10.35, the difference was statistically significant ( t value was 8.55, P<0.001), and the depression score decreased from 57.77 ±8.32 to 47.86 ±9.33, the difference was statistically significant ( t value was 7.23, P<0.001). Maternal satisfaction increased from 92.68% (76/82) to 98.82% (84/85), the difference was statistically significant ( χ2 value was 3.92, P< 0.05). Conclusion:The result of practice shows that through evidence-based nursing intervention, we can further standardize the postpartum optimal nursing paradigm of elderly second-child parturients in China. Reduce postpartum anxiety and depression and improve maternal satisfaction. And quality review still needs to be continuously promoted and implemented in clinical practice in order to continuously improve the quality of nursing and ensure sustainability.

Objective To investigate the diagnostic value of seven tumour-associated autoantibodies,including p53,PGP9.5,SOX2,GAGE7,GBU4-5,MAGE A1 and CAGE autoantibodies,in the newly diagnosed patients with lung cancer.Methods A total of 108 patients with newly diagnosed lung cancer,120 with benign lung diseases,227 with other cancers and 96 healthy controls were enrolled in the study.Their serum levels of seven autoantibodies were detected by enzyme linked immunosorbent assay (ELISA).The ROC curve was drawn and used to analyze their diagnostic efficiency for lung cancer.The diagnostic value of the combination of seven autoantibodies in different groups was also compared.Results The serum levels of seven autoantibodies in lung cancer patients were significantly higher than those in the patients with benign lung diseases or other cancers and healthy controls (P ＜ 0.05).The sensitivity,specificity and AUCROc of the combination of seven autoantibodies in the preliminary diagnosis of lung cancer were 62.00％,89.80％ and 0.769,respectively,and its sensitivity and AUCROC were higher than those of single autoantibody.The positive rate of the combination of seven autoantibodies in lung cancer patients was significantly higher than those in healthy controls (x2 =50.885,P ＜ 0.01) and the patients with benign lung diseases (x2 =56.341,P ＜ 0.01) or other cancers (x2 =46.812,P ＜ 0.01).Conclusion The combination detection of seven autoantibodies,including p53,PGP9.5,SOX2,GAGE7,GBU4-5,MAGE A1 and CAGE,may serve as potential markers for the diagnosis of lung cancer.

Saccharomyces cerevisiae strains may have some defects in beer production.Purposeful alteration of metabolic pathway with molecular biology techniques after analysis the metabolic fluxes has been a main way of S.cerevisiae breeding.The researchers have done a lot of work on some aspects of S.cerevisiae,such as the substrate utilization,maneuverability,reducing the no use by-products,improve the beer flavor,and got many delightful results,all of this are summarized here.

In order to reveal genetic diversity of domestic Andrographis paniculata and its impact on quality, genetic backgrounds of 103 samples from 7 provinces in China were analyzed using SRAP marker and SNP marker. Genetic structures of the A. paniculata populations were estimated with Powermarker V 3.25 and Mega 6.0 software, and polymorphic SNPs were identified with CodonCode Aligner software. The results showed that the genetic distances of domestic A. paniculata germplasm ranged from 0. 01 to 0.09, and no polymorphic SNPs were discovered in coding sequence fragments of ent-copalyl diphosphate synthase. A. paniculata germplasm from various regions in China had poor genetic diversity. This phenomenon was closely related to strict self-fertilization and earlier introduction from the same origin. Therefore, genetic background had little impact on variable qualities of A. paniculata in domestic market. Mutation breeding, polyploid breeding and molecular breeding were proposed as promising strategies in germplasm innovation.
Andrographis ; classification ; genetics ; China ; Genetic Variation ; Phylogeny ; Polymorphism, Single Nucleotide

OBJECTIVEThe influence of processing methods on chemical constituents in Radix Paeoniae Alba was observed.

METHODA HPLC method was used for analyzing the changes of eight major constituents, namely gallic acid, paeoniflorin sulfonate, catechin, paeoniflorin sulfonate, albiflorin, paeoniflorin, benzoic acid, pentagalloylglucose and benzoylpaeoniflorin, with the three processing procedures of decorticating, boiling and fumigating by burning of sulphur. Analysis was performed using a Zorbax SB-C18 column (4.6 mm x 250 mm, 5 microm) with the mixture of acetonitrile (A) and 0.015% phosphoric acid solution as mobile phase in gradient mode. The detection wavelength was set at 230 nm and the column temperature was at 30 degrees C.

RESULTExcept for gallic acid and pentagalloylglucose, the other constituents decreased during procedure of decorticating and boiling. Fumigating by burning of sulphur would produce a new compound, paeoniflorin sulfonate, which was a byproduct from the reaction of paeoniflorin with SO2.

CONCLUSIONThe significant changes were produced in chemical constituents of Radix Paeoniae Alba during three processing procedures. Therefore, the processing of Radix Paeoniae Alba should be strictly controlled and standardized.

Benzoates ; analysis ; chemistry ; Bridged-Ring Compounds ; analysis ; chemistry ; Chromatography, High Pressure Liquid ; Gallic Acid ; analysis ; Glucosides ; analysis ; chemistry ; Hot Temperature ; Hydrolyzable Tannins ; analysis ; Molecular Structure ; Monoterpenes ; Paeonia ; chemistry ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Sulfur ; Technology, Pharmaceutical ; methods

AIM To study the effects of Danggui Buxue Decoction total glycosides combined with Hirudo in the treatment of pulmonary fibrosis in rats and its mechanism.METHODS One hundred and twenty male SD rats were selected,eighteen of which were taken as normal group (normal saline),the remaining 102 rats were used to establish model for pulmonary fibrosis.Seventy-two modeled rats were randomly divided into model group (normal saline),Danggui Buxue Decoction total glycosides group (13 mg/kg),Hirudo group (Hirudo powder,4 g/kg) and combination group (Danggui Buxue Decoction total glycosides,13 mg/kg;Hirudo powder,4 g/kg),eighteen rats in each group with intragastric administration.RESULTS On the 7th,14th and 28th days after modeling,alveolar inflammatory score,pulmonary fibrosis degree score,TGF-β1 and PAI-1 expression levels in lung tissue,IL-4 and IL-17 expression levels in alveolar lavage fluid,hydroxyproline (HYP) content in lung tissue in the model group were significantly higher than those in the normal group (P ＜ 0.05).Alveolar inflammatory score,pulmonary fibrosis degree score,TGF-β1,PAI-1,IL-4,IL-17 expression levels and HYP content in the Danggui Buxue Decoction total glycosides group,Hirudo group and combination group were significantly lower than those in the model group (P ＜ 0.05).In the combination group,alveolar inflammatory score,pulmonary fibrosis degree score,TGF-β1,PAI-1,IL-4,IL-17 expression levels and HYP content were significantly lower than those in the Danggui Buxue Decoction total glycosides group and Hirudo group (P ＜ 0.05).CONCLUSION Danggui Buxue Decoction total glycosides combined with Hirudo have good therapeutic effects on pulmonary fibrosis in rats mainly by reducing TGF-β1,PAI-1 expression levels and HYP coment in lung tissue.

BACKGROUNDVarious surgical approaches have been successfully used in the treatment of thoracolumbar disc herniation (TLDH). Although the anterior transthoracic approach has a reputation for better visualization than the posterolateral and lateral approaches, it involves the manipulation of the thoracic and pulmonary structures. Thus, this approach is technically demanding and prone to compromising the respiratory system. An ideal approach would involve adequate visualization and be accomplished through the posterior midline approach that is familiar to spine surgeons. The objective of this retrospective preliminary clinical study was to introduce a new surgical procedure, circumspinal decompression through a single posterior incision, for the treatment of TLDH (T10/11-L1/2) and to evaluate the surgical outcome of this procedure by comparing it to the conventional anterior transthoracic approach.

METHODSIn this study, 15 patients (10 males, 5 females; mean age 51 years) with symptomatic TLDH underwent the circumspinal decompression through a single posterior incision procedure between January 2008 and December 2009. Altogether, 17 herniated discs were excised, with 2 discs at T10/11, 4 discs at T11/12, 5 discs at T12/L1 and 6 discs at L1/2. Of these patients, 13 were followed up with a mean follow-up period of 23.5 months. Clinical outcomes, including operative time, blood loss, perioperative complications, postoperative time of hospitalization, neurologic status improvement, back pain and correction of local kyphosis, were investigated by comparing these data with the results from patients who underwent the anterior transthoracic approach for TLDH during the same period. The patients' neurologic status was evaluated by a modified Japanese Orthopedic Association (JOA) scoring system of 11 points. Neurologic status improvement after the surgery was assessed by calculating the recovery rate, which was equal to the (postoperative JOA score-preoperative JOA score)/(11-preoperative JOA score)×100%. The rates of patients who improved at the final follow-up were also assessed.

RESULTSThe mean operative time was 183 minutes, the mean blood loss was 1067 ml, and the mean postoperative hospitalization time was 8.4 days. Three patients suffered perioperative complications, but none of these complications involved the respiratory system. Local kyphotic angles at the fusion levels were reduced. Of the 13 patients that were followed up, 12 improved at the final follow-up, with a mean recovery rate of 52.8%. Patients who underwent the circumspinal decompression procedure showed a higher percentage of improvement at the final follow-up, a higher degree of local kyphosis correction and a lower percentage of complications (especially respiratory complications) compared to patients who underwent the anterior transthoracic decompression procedure.

CONCLUSIONSThe circumspinal decompression through a single posterior incision procedure is an effective and safe technique that is comparable to anterior tranthoracic approach for the surgical treatment of TLDH patients. It could be an attractive choice in certain circumstances.

Adult ; Aged ; Decompression, Surgical ; methods ; Female ; Humans ; Intervertebral Disc Displacement ; surgery ; Male ; Middle Aged ; Retrospective Studies ; Thoracic Vertebrae ; surgery ; Treatment Outcome