OBJECTIVE: Citri Reticulatae Pericarpium (Chenpi, CRP) is one of the most used traditional Chinese medicines with great medicinal, dietary and collection values, among which the Citrus reticulata cv. 'Chachi' (Citrus reticulata cv. Chachiensis) from Guangdong Xinhui is the geoherb of CRP. Xinhui CRP in the market was often counterfeited with other varieties or origins, molecular identification method can effectively distinguish different CRP varieties, but it's still a difficult problem to identify the same CRP variety from different origin. It is necessary to discover a new molecular marker to ensure the safe and effective application of Xinhui CRP. METHODS: We selected one of the most studied transcription factor families in Citrus genus, MYB, to design the specific candidate primers on the conserved region. The primers with good band repeatability and high polymorphism were screened for PCR amplification of the test materials, and the genetic similarity coefficient among different families, genera, species, and origins were calculated. The cluster analysis was performed by unweighted pair group method using arithmetic average (UPGMA). RESULTS: A total of ten MYB primers were screened out to identify Xinhui CRP from plants from different family (Panax ginseng and Morus alba), genus (Clausena lansium and Zanthoxylum schinifolium), and species (Citrus reticulata, C. sinensis and C. maxima). Furthermore, two from the ten primers, M1 and M10, were found to distinguish Xinhui CRP from other origins. There were 169, 113, 133 and 134 polymorphic bands in the identification of different families, genera, species, and origins respectively, and the accordingly polymorphism ration were 79.88%, 76.87%, 79.20% and 82.84%. Moreover, M1 was discovered to be the best primer to identify Xinhui CRP from other seven origins, the cluster analysis results based on the genetic similarity coefficients were consistent with the geographical distribution. CONCLUSION This study established a novel molecular identification method according to MYB transcription factor, which can analyze the potential parental relationship of CRP germplasm, as well as identify the quality and origins of Xinhui CPR.

OBJECTIVETo explore the relationship between aquaporin 3,4 (AQP3, AQP4) gene expression in gastric mucosa and severity of Pi-Wei damp-heat syndrome (PWDHS) in patients with chronic superficial gastritis (CSG).

METHODSGastric mucosa taken from the upper part of gastric corpus was collected under gastroscope and preserved in liquid nitrogen. The gene expression of AQP3 and AQP4 was determined quantitatively by fluorescent PCR.

RESULTSThe gene expression of AQP3 and AQP4 in patients with PWDHS of moderate and severe degree was higher than that in those of mild degree and in healthy persons respectively (P <0.05 and P <0.01); and the gene expression of AQP3 in patients with PWDHS of severe degree was higher than that in those of moderate degree (P<0.05).

CONCLUSIONThe gene expression of AQP3 and AQP4 in gastric mucosa was correlative with the severity of PWDHS in patients with chronic superficial gastritis, the severer the syndrome, the higher the gene expression.

Adult ; Aquaporin 3 ; genetics ; Aquaporin 4 ; genetics ; Chronic Disease ; Diagnosis, Differential ; Female ; Gastric Mucosa ; metabolism ; pathology ; Gastritis ; diagnosis ; genetics ; Gene Expression ; Humans ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Reverse Transcriptase Polymerase Chain Reaction ; methods ; Syndrome

[Objective] To observe the therapeutic effect of heat-clearing and diuresis-promoting herbal medicine for hyperuricemia induced by pyrazinamide. [Methods] Eighty-six patients with pyrazinamide-induced hyperuricemia were randomized into 2 groups: group A ( n = 43) received antiphthisic drugs (including isoniazid, rifampin, pyrazinamide and ethambutol) , allopurinol tablets and Modified Simiao Powder (one dose per day); group B ( n = 43) was treated with antiphthisic drugs and allopurinol tablets. Fourteen days constituted one treatment course and the two groups were treated for 2 courses. After treatment, the therapeutic effect was assessed and the changes of blood uric acid level were observed. [Results] In group A, 28 (65.12%) were cured, 12 (27.91%) effective, 3 (6.97%) ineffective and the total effective rate was 93.02%; in group B, 16 (37.21%) were cured, 17 (39.53%) effective, 10 (23.26%) ineffective and the total effective rate was 76.74% . The therapeutic effect in group A was better than that in group B (P