1.A case of keratitis-ichthyosis-deafness syndrome complicated by cutaneous squamous cell carcinoma:mutation analysis of the GJB2 gene and literature review
Zhiming LI ; Jingjing LIU ; Xueqi ZHANG ; Xuan XUAN ; Yi ZHANG ; Xiaohua LIN ; Yunsheng XU ; Bingxu LI
Chinese Journal of Dermatology 2015;(12):864-866
Objective To analyze mutations in the GJB2 gene in a Chinese patient with keratitis-ichthyosis-deafness (KID)syndrome complicated by cutaneous squamous cell carcinoma. Methods Clinical data were collected from a patient with KID syndrome complicated by cutaneous squamous cell carcinoma. Peripheral blood samples were obtained from the patient and her parents, and DNA was extracted from these blood samples. PCR was performed to amplify the exon 2 of the GJB2 gene followed by direct DNA sequencing. Results A mutation (c.148G > A)was identified at position 148 in exon 2 of the GJB2 gene, which caused a codon change from GAC to AAC and resulted in the substitution of aspartate by asparagine at position 50 in the connexin26 (Cx26)protein (p.Asp50Asn). Inaddition,anothermutation(c. 79G > A), which led to the substitution of valine by isoleucine at codon 27 in Cx26 (p.Val27Ile), was found at position 79 in exon 2 of the GJB2 gene. Neither of the two mutations was detected in the patient′s parents. Literature review revealed that 13 cases of KID syndrome complicated by cutaneous squamous cell carcinoma had been reported in abroad, and the mutation c.148G > A was detected in the GJB2 gene in all the 7 cases finally diagnosed by gene sequencing. Conclusion GJB2 gene mutations may be responsible for the clinical phenotype of KID syndrome in this Chinese patient, and the mutation c.148G > A may be related to the development of cutaneous squamous cell carcinoma.
2.Effect of Qi Kwai Granule particles on expression of TGF-β1 and MCP-1 in kidney of diabetic nephropathy rats
Xuan-Xuan ZHU ; Jiang-Yi YU ; Chen YANG ; Di ZHANG
Chinese Journal of Pharmacology and Toxicology 2018;32(4):345-345
OBJECTIVE To observe the effect of Qi Kwai Granule particles on the expression of in-terleukin 6 (IL-6), monocyte chemotactic protein 1(MCP-1) and transforming growth factor-β1(TGF-β1) in diabetic nephropathy(DN)rats and evaluate the protective effect of Qi Kwai Granule particles against renal injury of diabetic nephropathy. METHODS This experiment adopts adopted the high-sugar-high-fat diet and intraperitoneal injection of 2% STZ+unilateral renal ligation to establish rat model of diabet-ic nephropathy.50 model rats were then randomly divided into model group,Irbesartan group,Qi Kwai Granule particles of high, medium, low dose group, 10 rats in each group. 10 normal rats were set as the sham operation group.Intragastric administration for 8 weeks were measured in rats.Measure the value of rat blood glucose by blood glucose meter,the determination of serum interleukin 6(IL-6)con-tent by ELISA, the expression of MCP-1 and TGF-β1by immunohistochemistry method. The value of rat blood glucose were measured by blood glucose meter.Serum interleukin 6(IL-6)were determinat-ed by ELISA.Expression of MCP-1 and TGF-β1were evaluated by immunohistochemistry method.RE-SULTS The blood glucose of Qi Kwai Granule particles of high,medium groups were decreased com-pared with those of the model group(P<0.05).The content of IL-6 of Qi Kwai Granule particles of high, medium groups were reduced(P<0.01). The content of MCP-1, TGF-β1in kidney of Qi Kwai Granule particles of high, medium, low dose groups were decreased (P<0.01). CONCLUSION Qi Kwai parti-cles have protective effect on renal tissue of diabetic nephropathy rats.Its mechanism might be related to the decrease of blood glucose value and IL-6,the inhibition of the expression of MCP-1 and TGF-β1.
4.The efficacy analysis of domestic pantoprazole in the treatment of non-steroidal anti-inflammatory drugs associated ulcer bleeding
Xuan HUANG ; Bin Lü ; Shuo ZHANG ; Yi XU
Chinese Journal of Digestion 2011;31(1):36-39
Objective To compare the efficacy, adverse reactions and cost-effectiveness between domestic pantoprazole (Pan Li Su) and imported omeprazole (Losec) in the treatment of non-steroidal anti-inflammatory drugs (NSAID) associated ulcer bleeding.Methods Fifty-eight hospitalized patients with NSAID associated ulcer bleeding were randomly divided into pantoprazole group (n=31)and omeprazole group (n= 27) according to random number table.Pantoprazole group was given 40 mg domestic pantoprazole dissolved 100 ml 0.9% sodium chloride solution intravenously every 12 hours.Omeprazde group was given 40 mg omeprazole dissolved in 100 ml 0.9% sodium chloride solution intravenously every 12 hours.The two groups were both treated for seven days.Finally, the efficacy and adverse effect were observed, and cost-effectiveness was analyzed with pharmacoeconomics.Results The total effective rate of pantoprazole group was 93.5%, omeprazole group was 96.3% .The drugs of the two groups could effectively stop bleeding, the difference was not statistically significant (P= 1.00).The rate of adverse effect was 3.2 % and 7.4 % in the two groups accordingly.The cost-effectiveness ratio (C/E) was 7.76 and 20.73 respectively.Compared with pantoprazole group, the incremental cost-effectiveness ratio of omeprazole group was 454.Conclusions Domesic pantoprazole is an effective, safety and economical medicine for NSAID associated ulcer bleeding.
5.Effects of eucommia alcohol extract on a rabbit model of mandibular distraction osteogenesis
Xiaowen JIANG ; Yi ZHANG ; Xiaosheng FAN ; Xuan DENG
Chinese Journal of Tissue Engineering Research 2015;(42):6725-6729
BACKGROUND:Long course of treatment and complications limit the extensive application of distraction osteogenesis, which cannot meet the clinical requirements. OBJECTIVE:To investigate the effect of general administration of eucommia alcohol extract on new bone regeneration based on the rabbit model of mandibular distraction osteogenesis. METHODS:Twenty-four New Zealand white rabbits were randomly divided into experimental group and control group. Unilateral mandibular distraction osteogenesis model was established by 1 mm/12 h distraction protocol. During the distraction period, the rabbits in the experimental group were intragastricaly administered with eucommia alcohol extract and the control animals received the same amount of physiological saline, respectively. Six weeks later, the animals were sacrificed for osteogenic testing. RESULTS AND CONCLUSION: New bone formation was observed in the distracted gap in both groups. However, the amount, mineralization and biomechanical strength of new regenerated bone in the experimental group were obviously greater than those in the control group by histological observation, dual energy X-ray absorptiometry, micro-CT and biomechanical test. General administration of eucommia alcohol extract can markedly promote distraction osteogensis in rabbit mandibular osteodistraction.
6.Studies on Mutagenesis of Virginiamycin Producing Strain X-435
Mu CHEN ; Xuan-Yi WANG ; Yue-Qin ZHANG ;
Microbiology 1992;0(06):-
Streptomyces sp.X-435 isolated from a soil sample collected in the suburbs of Beijing was proved to be a produce Virginiamycin.To improve the productivity of the Virginiamycin of Streptomyces sp.X-435,the spores of strain X-435 were treated with UV.The three types of colony,strawhat,wrinkled,blad,were isolated on Gaose's medium plates after mutation.Among them,the colonies of strawhat type exhibited positive mutation and were picked up as objects of screening.After five generation of mutation,the mutant F5-25-u-28 was selected which potency of Virginiamycin was about 20times higher than that of the beginning strain by flask fermentation and was also genetic stable.
7.An analysis of current situation of Australian acupuncture standardization
Zixu WANG ; Yi YANG ; Wei WANG ; Yi GUO ; Jiajia LIU ; Xuan ZHANG ; Zhankui WANG
International Journal of Traditional Chinese Medicine 2012;34(5):390-393
The development of acupuncture in Australia has been booming.Under this circumstance,a series of acupuncture standards,codes and guidelines were established by different associations of TCM in Australia.Moreover,Australia has set the front pace in the field of acupuncture standards among the countries outside China.This paper is to introduce the acupuncture standards of Australia in three aspects respectively:national standards,industry standards and regional standards and to generalize the content of the main standards as well as analyze the current condition of Australian acupuncture standardization in order to generally give an all-around view of Australian acupuncture standards to the researchers in the field of international acupuncture standards.
8.An introduction and analysis of current situation of Canadian acupuncture standards
Jiajia LIU ; Yi YANG ; Yi GUO ; Guilan LI ; Zhankui WANG ; Zixu WANG ; Xuan ZHANG
International Journal of Traditional Chinese Medicine 2012;34(11):968-971
The standardization of acupuncture and moxibustion in Canada is increasingly flouring nowadays:on one hand,acupuncture industry in legislated provinces is in the charge of direct administrative departments and associations of acu-moxi; on the other hand,according to the local situations,relevant regulations have been made,which are concentrated on two aspects-technical and administrative standards.Undoubtedly,Canadian Alliance of Regulatory Bodies for TCM Practitioners and Acupuncturist (CARB),united by each provincial TCM/Acupuncture Administration,is the first step to issue federal standards and establish federal level management institution.However,now the releasing of a fundamental regulatory file is in need of active corporation and publicity from each province and association.Therefore,it shows that the body of standardization in Canada is still not relatively perfect.Through introducing and analyzing the relevant information,the author expects that the readers can know the current development of acupuncture and moxibustion standardization in Canada.
9.Effects of human IL-10 gene transfection on the mRNA and protein expressions of IL-1β and TNF-α in the penumbra area following focal cerebral ischemia-reperfusion injury in rats
Jun FU ; Yi ZHANG ; Chengsheng ZHANG ; Changchun YANG ; Shilei WANG ; Qishui LIN ; Haixing XUAN ; Dai ZHOU
Chinese Journal of Geriatrics 2008;27(10):775-779
ObjectiveTo observe the effects of human IL-10 gene transfection on the mRNA and protein expressions of IL-1β and TNF-α in the penumbra area following focal cerebral ischemia-reperfusion injury in rats and to investigate its neuroprotective mechanism. MethodsRats were divided into four groups: normal control group, ischemic control group, empty plasmid group and human IL-10 gene transfected group. The mRNA and protein expressions of IL-1β and TNF-α in the penumbra area were detected by fluorescence real-time quantitative PCR and ELISA respectively. ResultsIn normal control group, ischemic control group, empty plasmid group and human IL-10 gene transfected group, the levels of protein expression of TNF-α in penumbra area were(0.66±0. 04) ,(1.16±0.26),(1. 155±0. 26)ng/g and(0. 84±0. 05)ng/g, and the levels of protein expression of IL-1βin penumbra area were(0.37±0.05), (1.25±0.39), (1.21±0.57) ng/g and(0.62+0.05)ng/g, respectively. Compared with normal control group, the levels of protein expression of TNF-α and 1L-1β were significantly higher in other three groups(all P<0. 01), and lower in human IL-10 gene transfected group than in ischemic control group and empty plasmid group(all P<0. 01). In normal control group, ischemic control group, empty plasmid group and human IL-10 gene transfectedgroup, the levels of mRNA expression of TNF-α in penumbra area were 1.00 ±0.53,9.42±1.83,9.69±1.96 and 3.53±1.09, and the levels of mRNA expression of IL-1β in penumbra area were 1.00 ±0.51,27. 81±4.84,23.96 ± 4.90 and 13.55± 4.45, respectively. Compared with normal control group, the levels of mRNA expression of TNF-α and IL-1β were significantly higher in other three groups(all P<0. 01), and lower in human IL-10 gene transfected group than in ischemic control group and empty plasmid group(all P<0. 01). ConclusionsThe human IL-10 gene transfection may play an protective effect on cerebral ischemia through inhibiting mRNA and protein expression of IL-1β and TNF-α in the penumbra area following focal cerebral ischemia-reperfusion in rats.
10.Inhibitory Effect Analysis of Pioglitazone on Inflammation Factors in Patients with Bladder Cancer
Yi LIU ; Xuan ZHANG ; Huyi LI ; Xuliang ZHANG ; Weihe QUAN ; Zhenqi WU
Journal of Modern Laboratory Medicine 2015;(2):46-48
Objecitve To study the inhibitory effect of pioglitazone on inflammation factors in patients with bladder cancer. Methods A total of 100 consecutives diagnosed as bladder cancer from Februray 2013 to Februray 2014 were individed ran-domly into experiment and control groups and each of 50 cases.All patients received the appropriate operation or chemother-apeutic regimens,and the patients in experiment group received pioglitazone (15 mg/d×12 weeks)at the same time.Then to compare expression differences of high-sensitive C reactive protein (hs-CRP),tumor necrosis factor alpha (TNF-alpha),in-terleukin (IL-6)and HOMA-IR,MCP-1,MIP-1 levels.Results The levels of hs-CRP,TNF-αand IL-6 in the two groups af-ter treatment were all lower (P <0.05),and in experiment groups they were significantly lower than control group (P <0.05).The levels of HOMA-IR,MCP-1 and MIP-1 in the two groups after treatment were all lower (P <0.05),and in ex-periment groups they were significantly lower than control group(P <0.05).The complication rate in the two groups were no statistical difference (P >0.05).Conclusion Pioglitazone could improve clinical effect and prognosis by lowing inflam-mation factors including hs-CRP,TNF-α,IL-6,HOMA-IR,MCP-1 and MIP-1 in patients with bladder cancer.