1.A study of the self-help techniques of people with Meniere′s disorder
Yanan LIANG ; Zuwang ZHANG ; Hongyan CHEN
Chongqing Medicine 2015;(7):924-926
Objective Tdentify what techniques were used to relieve Menière′s disorder and benefits the subjects experienced use these self-help techniques in order to guide the clinical practice.Methods The data of Menière′s disorder patients treated in our hospital from January 2011 to December 2013 was collected.After random sampling,the questionnaire(the extensive questionnaire used included an open-ended question asking about the ways that each individual used to relieve their problems associated with Menière′s disorder)results were analysed use the qualitative analysis.Results Lifestyleaccounted for 58% of the self-help tech-nique responses.Among all the subthemes,increasing exercise in general was the most commonly listed method.Conclusion These techniques can be used as self-help methods for other individuals with Menière′s disorder to enhance their adaptation to the condi-tion.At the same time provide the basis for medical workers to guide patients.
2.Microscopic and molecular identification of pine needles.
Hengpei GONG ; Zuwang LIU ; Yanyue CHEN ; Jian ZHANG ; Rubin CHENG ; Zhen HUANG
Journal of Zhejiang University. Medical sciences 2018;47(3):300-306
OBJECTIVETo identify pine needles from different plant origins by microscopic and molecular approaches.
METHODSThe characteristics of pine needles of Lamb., Parl. and Franch. were investigated via plant morphology and microscopic characteristics. and were analyzed with PCR amplification and bi-directional sequencing. MEGA 6.0 was used to calculate the intra-and inter-specific Kimura-2-Parameter (K2P) distances, and the phylogenetic tree was constructed by using the neighbor-joining (NJ) method.
RESULTSThere were significant differences in the number and length of pine needles, number of vascular bundles, distribution of stomatal lines, number and distribution of resin channels among three kinds of pine needles. The lengths of sequences of Lamb., Parl. and Franch. were 470, 469 and 470 bp, respectively. The lengths of sequences in three kinds of pine needles were 553 bp. The intraspecific variation rates of Lamb., Parl. and Franch. were 0%, 0.2%, and 2.8%, respectively; and the intraspecific variation rates of sequences were 0%, 2.4%, and 1.1%, respectively. There was no significant barcoding gap in intraspecific and interspecific genetic distances of sequences. The intraspecific and interspecific distances of sequences were clearly separated in the barcoding gap test. The NJ tree based on showed that the three pine needles clustered into three separate groups, indicating that DNA marker could distinguish the Lamb., Parl., Franch. and its close relative species.
CONCLUSIONSs The three types of pine needles can be distinguished accurately and rapidly by microscopic and molecular identification. The study provides methodology and experimental basis for the quality evaluation and classification of pine needles.