Genomics research on roles of yishen kangxian compound in the TEMT process of HK-2 cells / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To study effects of Yishen Kangxian Compound (YKC) and benazepril containing serums on HK-2 cells (human renal proximal tubule epithelial cells) in the process of renal tubular epithelial cells to mesenchymal myofibroblasts transdifferentiation (TEMT) by gene chip.</p><p><b>METHODS</b>YKC and benazepril containing serums were prepared. Their inhibitory effects on HK-2 cells in the transforming growth factor-beta1 (TGF-beta1)-induced TEMT process were observed. HK-2 cells were randomly divided into four groups, i.e., the blank control group, the model group, the benazepril group, and the YKC group. The gross RNAs were extracted and purified by taking advantage of the HumanHT-12 v4 of IlluminaBeadChip. Differentially expressed genes were obtained after they were reversely transcribed to cDNA, incorporating biotin labeling probe, hybridized with GeneChip, picture signals of fluorescence in gene array scanned and compared with differential genes by computer analysis.</p><p><b>RESULTS</b>Differentially expressed genes were successfully identified by gene chip. Compared with the model group, there were 227 differentially expressed genes in the benazepril group, including 118 up-regulated genes and 109 downregulated genes. Compared with the model group, there were 97 differentially expressed genes in the YKC group, including 69 up-regulated genes and 28 down-regulated genes. The Gene Ontology (GO) analysis indicated that YKC was more actively involved in the regulatory process than benazepril in terms of cell damage, apoptosis, growth, NF-KB, protein kinase, neuron, and blood vessel growth.</p><p><b>CONCLUSIONS</b>YKC and benazepril could inhibit the TEMT process of HK-2 cells. But YKC also had taken part in cell damage, apoptosis, growth,and more pathways of early stage TEMT.</p>

Detection of human papillomavirus in the upper respiratory tract in children without recurrent respiratory papillomatosis / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>The purpose of this prospective study was to investigate the presence of human papillomavirus (HPV) in tonsillectomy and adenoidectomy specimens from pediatric patients without juvenile-onset recurrent respiratory papillomatosis (JORRP), so as to understand the effect of HPV infection in the upper respiratory tract in children.</p><p><b>METHODS</b>Two hundred and forty-one pediatric patients without known JORRP or other HPV-related diseases undergoing tonsillectomy and/or adenoidectomy for hypertrophy or chronic tonsillitis were enrolled in this prospective study. One hundred and seventy-seven fresh samples of tonsillar tissues and 195 samples of adenoid tissues were collected and then examined for the presence of HPV DNA with the polymerase chain reaction (PCR) technique and typing. Laryngeal papilloma specimens from 17 patients obtained during routine debulking procedures were also analyzed and served as positive controls.</p><p><b>RESULTS</b>All 17 papilloma specimens were positive for HPV DNA and the type was 6 or 11. This result confirmed that the methods used were valid for detecting HPV infection. HPV DNA was detected in 2 of the 177 tonsillar specimens and zero of the 195 adenoid specimens. The two positive samples were confirmed with typing. One was positive for HPV6 and the other for HPV11. Review of the medical records of these two cases confirmed that there were no history of HPV-related diseases. Histologic analysis of their specimens showed lymphoid hyperplasia, no specific changes suggesting HPV infection and no signs of malignancy. The HPV infection rate in upper respiratory tract was 0.8% (2/241).</p><p><b>CONCLUSION</b>There is HPV infection in upper respiratory tract in Chinese children without JORRP, but maybe is not sufficient for the formation of JORRP.</p>

VKORC1 genotypes are associated with response to warfarin but free warfarin concentration during initial anticoagulation in healthy Chinese volunteers / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>The genetic variations in VKORC1 modulate the stable responses to warfarin administration. But the role of VKORC1 polymorphisms during the initial anticoagulation and elimination period in the Han Chinese population is not clear.</p><p><b>METHODS</b>Twenty-four healthy Chinese volunteers were grouped according to their VKORC1 genotype. Twelve subjects were in the 3 mg group and 12 in the 6 mg group. VKORC1 genotypes were determined by a polymerase chain reaction (PCR) based restriction fragment length polymorphism (RFLP) assay and sequencing. The international normalized ratio (INR) was measured with an ACL9000 coagulation analyser. Plasma free warfarin concentration was measured with LC/MS/MS.</p><p><b>RESULTS</b>In the initial anticoagulation period, the -1639AG and 1173TC carriers compared with the -1639AA and 1173TT carriers had a low INR value. The differences between genotypes with regard to INR values were more obvious in the 3 mg subjects (P < 0.05), and were not significantly different among the 6 mg subjects (P > 0.05). On the contrary, no significant difference of plasma free warfarin concentration between genotypes was observed in each dosage group. It took 96 hours for the INR value and 144 hours for the free warfarin plasma concentration to come back to baselines after the last dose. No significant difference among genotypes and dosing groups was detected in the elimination phase (P > 0.05).</p><p><b>CONCLUSION</b>VKORC1 polymorphisms are associated with differences in the initial response to warfarin when given at fixed doses, without affecting, as expected, its plasma concentration.</p>

Clinical study and acoustical analysis for submucosa hemorrhage of vocal cords treated mainly with acupuncture at "Kaiyin point no. 1" / 中国针灸

<p><b>OBJECTIVE</b>To evaluate therapeutic effect of acupuncture at "Kaiyin point No. 1" on submucosal hemorrage of vocal cords.</p><p><b>METHODS</b>One hundred and sixty cases were randomly divided into a test group and a control group. The test group were treated by acupuncture at "Kaiyin point No. 1" with reducing method in reinforcing or reducing method by manipulating the needle in cooperation with the patient's respiration, combined with deep respiratory movement of the glottis laryngeal cavity, once daily; and the control group by spray inhalation of western medicine, once daily, 7 days constituting one therapeutic course.</p><p><b>RESULTS</b>The cured and markedly effective rate and the total effective rate were 85.0% and 97.5% in the test group and 60.0% and 85.0% in the control group respectively, with a significant difference between the two groups. After treatment of the test group,the acoustical parameters maximum phonation time (MPT), frequency perturbation quotient (FPQ), amplitude perturbation quotient (APQ), ratio of harmonic to noise (H/N) objectively reflected improvement of voice quality.</p><p><b>CONCLUSION</b>Acupuncture at "Kaiyin point No. 1" as main method is an ideal therapy for submucosa hemorrhage of vocal cords.</p>