Objective To investigate the relationship between genetic polymorphisms of Nogo gene and nasopharyngeal carcinoma in Zhuang ethnic group in Guangxi Province.Methods Nogo gene polymorphisms were analyzed between patients with nasopharyngeal carcinoma and healthy people as a control in Zhuang ethnic group in Guangxi province using PCR-SBE.Their genotype and allele frequency distribution were compared between case and control group.The frequencies of haplotypes were analyzed with SHEsis software between these two sites in different groups.Results There were no differences between the patients and controls in the genotype or allele frequencies of Nogo gene rs 17046518 site (P ＞ 0.05).But the frequency distribution of T allele was significantly different (P =0.003) in the rs12464595 site.The result of haplotypes analysis showed that GA haplotype and CA haplotype were significantly different between cases and control (P =0.045,P =0.002).Conclusion The CG haplotype,CA haplotype and T allele of Nogo gene rs12464595 site increase the risk of nasopharyngeal carcinoma among Zhuang ethnic group in Guangxi.

Objective To investigate the efficacy of modified VDLP (vincristine + daunorubicin + L-asparaginase + prednisone) for acute lymphoblastic leukemia (ALL) in elderly patients and its adverse reactions.Methods 31 elderly patients diagnosed as ALL at the initial visit from Jan.2009 to Dec.2014 were randomly divided into the experiment group (n=16) and the control group (n=15).Patients in the control group received traditional VDLP chemotherapy (vincristine 2 mg at 1,8,15 days;daunorubicin 30-40 mg/m2 at 1,2,15,16 days;L-asparaginase 6 000-10 000 U at 11,14,17,20 days;prednisone 1 mg/kg at 1 to 14 days),whereafter underwent a gradual dose reduction and drug withdrawal within 1-2 weeks.Patients in the experiment group received the modified VDLP chemotherapy (vincristine 2mg at 1,8,15 days;daunorubicin 30-40 mg/m2 at 1-3 days;L-asparaginase 6 000-10 000 U at 11,14,17,20 days;prednisone 1 mg/kg at 1 to 14 days),whereafter underwent a gradual dose reduction and drug withdrawal within 1-2 weeks.The complete response (CR) rate and complications were recorded.Results The CR rates were 53.3％ in modified VDLP group and 58.3％ in VDLP group,and there was no statistically significant difference between two groups (P ＞ 0.05).The treatment-related mortality and the incidence of severe infection had significant differences between the modified VDLP and VDLP groups (6.3％ vs.46.3％,31.3％ vs.66.7％,both P＜0.05).Conclusions Compared with VDLP,the modified VDLP is more tolerable and suitable for the elderly patients with ALL.

Objective To study the frequencies of allele and genotype distribution of alpha-B-crystallin (CRYAB ) gene rs3212227 and rs6894567 single nucleotide polymorphism (SNP) in Chinese guangxi populations ,and to Compare the distribution differences among different ethnic .Methods The CRYAB gene rs3212227 and rs6894567 polymorphisms were detected by the pol-ymerase chain reaction-single base extension (PCR-SBE) technique and DNA sequencing methods in 199 Chinese guangxi popula-tions ,frequencies of allele and genotype of CRYAB gene SNP loci ,rs3212227、rs6894567 were analyzed in guangxi populations com-pared with other the four populations (HapMap-CEU ,HapMap-YRI ,HapMap-JPT and HapMap-HCB) from Human Genome Pro-ject group (Hapmap) data .Results There were CRYAB gene polymorphisms in Guangxi populations .The frequencies of allele and genotype distribution of CRYAB gene rs3212227、rs6894567 polymorphisms had significant difference compared with HapMap-CEU and HapMap-YRI populations (P<0 .05) ,and had no significant difference compared with HapMap-JPT and HapMap-HCB (P>0 .05) .Conclusion The frequencies of allele and genotype distribution of CRYAB gene rs3212227、rs6894567 polymorphisms are significantly difference compared with others ethnic populations ,and this variation might account for a variety of clinical mani-festation and morbidity of of some CRYAB related diseases .

Objective To investigate the genotype and allele frequencies of osteopontin gene single nucleotide polymorphisms (SNP) rs11728697and rs9138 in Zhuang populations in Guangxi ,and to compare the distribution of osteopontin polymorphisms a‐mong different races .Methods The osteopontin gene rs11728697 and rs9138 polymorphisms were detected by SNaPshot SNP gen‐otyping technique in 150 Zhuang populations in Guangxi ,the genotype and allele frequencies of osteopontin gene rs 11728697 and rs9138 polymorphisms were analyzed in Zhuang populations compared with the other four populations (HapMap‐CEU ,HapMap‐YRI ,HapMap‐JPT ,HapMap‐HCB) from HapMap database .Results The most common genotype and allele of osteopontin gene rs11728697 polymorphism in Zhuang populations in Guangxi were CC(42 .7% ) and C(62 .7% ) ,and the most common genotype and allele of osteopontin gene rs9138 polymorphism were CA (51 .3% ) and C(63 .0% ) .There were no significant differences in the gen‐otype and allele frequencies of osteopontin gene rs11728697 and rs9138 polymorphisms between male and female groups ( P >0 .05) .The genotype and allele frequencies of osteopontin gene rs11728697 polymorphism were significantly differenct compared with HapMap‐CEU ,HapMap‐JPT and HapMap‐YRI(P< 0 .05) ,but were not significantly different compared with HapMap‐HCB (P> 0 .05) .The genotype and allele frequencies of osteopontin gene rs9138 polymorphism were significantly differenct compared with HapMap‐CEU and HapMap‐YRI(P < 0 .05) ,but had no significantly different compared with HapMap‐JPT and HapMap‐HCB(P> 0 .05) .Conclusion There are significant differences in the genotype and allele frequencies of osteopontin gene rs 11728697 and rs9138 polymorphisms between Zhuang populations and other ethnic populations ,and this variation might contribute for a varie‐ty of clinical manifestation and morbidity of some osteopontin related diseases .

Objective:To study the frequencies of allele and genotype distribution of miR-146a C>G(rs2910164) and miR-149 T>C( rs2292832) gene, and to analyze the statistical differences between different racial and nationalities.Methods:The Polymerase Chain Reaction-Single Base Extension ( PCR-SBE) technique and DNA sequencing methods were used for the determination of the SNP in miR-146a C>G and miR-149 T>C gene,and compared with the European, African, Japanese and People in Beijing from the Human Genome Project (HapMap).Results:There were no statistical differences of allele and genotype distribution in miR-146a C>G,miR-149 T>C between female and male group (P>0.05).There were significant difference frequencies of allele and genotype distribution of miR-146a C>G and miR-149 T>C gene by compared with the European, African and People in Beijing( P<0.05).Conclusion:There were gene Polymorphisms of miR-146a C>G and miR-149 T>C in Guangxi populations, and there were significant differences by compared with other ethnic populations, which may play an important role in the human inherited disease research.

Objective To investigate the expression and clinical significance of P-selectin in colorectal cancer cells. Methods The protein expression of P-selectin was detected by immunohistochemistry in colorectal cancer tissues ( n=116) and corresponding non-tumor normal mucosa(n=57). The differences of P-selectin expression in colorectal cancer tissues, corre?sponding non-tumor normal mucosa and the clinical pathological significance were compared and analysed in two groups. Results The expression of P-selectin protein was found not only in vascular endothelial cells but also in colorectal cancer cells. The positive rate of P-selectin expression was apparently higher in colorectal cancer cells (77.6%, 90/116) than that in normal mucosa (17.5%, 10/57,χ2=56.49, P<0.05). However, there were no significance in positive rates of P-selectin in colorectal cancer cells between tumors with different diameters, different degrees of differentiation, different depths of infiltration and with or without lymph node metastasis (80.6%vs. 74.1%, 79.0%vs. 74.3%, 78.4%vs. 76.9%, 82.7%vs. 73.4%, P>0.05). Conclusion The high expression of P-seletin in colorectal cancer cells is an important characteristic of colorectal cancer.

Objective To investigate the distribution characteristics of interleukin-27 gene rs17855750 G/T,rs40837 A/G polymorphism in Zhuang populations of Guangxi,and to compare the distribution differences of genotype and allele frequencies of interleukin-27 gene rs17855750 G/T,rs40837 A/G polymorphisms among different races.Methods The interleukin-27 gene rs17855750 G/T,rs40837 A/G polymorphisms were detected by SNaPshot SNP genotyping technique on 168 persons in Zhuang populations of Guangxi,frequencies of genotype and allele of interleukin-27 gene rs17855750 G/T,rs40837 A/G polymorphisms were analyzed in Zhuang populations,and was compared with the other four populations (HapMap-HCB,HapMap-JPT,HapMap-YRI,HapMap-TSI) from HapMap database.Results The most common genotype and allele of interleukin-27 gene rs17855750 G/T polymorphysms were TT(70.2％) and G(50.3％) in Zhuang populations of Guangxi,and the most common genotype and allele of interleukin-27 gene rs40837 G/T polymorphysms were AC(35.7 ％) and C(52.1 ％).There were no significant differences in the genotype and allele frequencies of interleukin-27 gene rs17855750 G/T,rs40837 A/G polymorphysms between male and female gender in Zhuang populations of Guangxi(P＞0.05).The frequencies of allele and genotype distribution of IL-27 gene rs17855750 G/T polymorphisms were not significantly different when compared with HapMap-HCB(P＞0.05),but were significantly different when compared with HapMap-JPT,HapMap-TSI and HapMap-YRI(P＜0.01);The frequencies of allele and genotype distribution of intetleukin-27 gene rs40837 A/G polymorphisms were significantly different when compared with HapMap-HCB(P＜ 0.05),and were significantly different when compared with HapMap-JPT,HapMap-YRI and HapMap-TSI(P＜0.01).Conclusion There are significant differences in the frequencies of allele and genotype distribution of interleukin-27 gene rs17855750 G/T,rs40837 A/G between Zhuang populations and other ethnic populations,and this variation may lead to a variety of clinical manifestation and morbidity of some diseases.

Objective: Percutaneous vertebroplasty (PVP) is currently the most common surgical procedure for unstable Kummell disease (KD), but cement loosening or displacement often occurs after PVP. We had been using percutaneous pediculoplasty (PPP) or a self-developed bone cement bridging screw system to avoid this severe complication. This study intends to compare these novel surgical procedures through a 2-year follow-up evaluation. Methods: From May 2017 to May 2021, 77 patients with single-level unstable KD were included in the PPP group, and 42 patients received the PVP-bone cement bridging screw system were included in the screw group. The changes in the vertebral body index (VBI), bisegmental Cobb angle, visual analogue scale (VAS) and Oswestry Disability Index (ODI) and the cement loosening rate and displacement rate at different follow-up time points were used to evaluate the clinical efficacy. Results: There was no significant difference in VBI or bisegmental Cobb angle between the 2 groups (p > 0.05) before operation, immediately after operation and at 6-month followup, while at 1-year and 2-year postoperative evaluations, the screw group had higher VBI and bisegmental Cobb angle than the PPP group (p < 0.05). Before operation, immediately after operation, at 6-month and 1-year follow-up, there was no significant difference in VAS or ODI score between the 2 groups (p > 0.05), while at 2-year follow-up, the screw group still had higher VAS and ODI scores than the PPP group (p < 0.05). No bone cement displacement occurred in both groups, but the rate of bone cement loosening was 14.29% in group PPP, and 0 in screw group (p < 0.05). Conclusion This 2-year follow-up study shows that the PVP-bone cement bridging screw system combined therapy had better midterm treatment efficacy than the PVP-PPP combined therapy in patients with unstable KD, and the bone cement bridging screw system is a preferred therapy with better anti cement loosening ability.

Objective: Percutaneous vertebroplasty (PVP) is currently the most common surgical procedure for unstable Kummell disease (KD), but cement loosening or displacement often occurs after PVP. We had been using percutaneous pediculoplasty (PPP) or a self-developed bone cement bridging screw system to avoid this severe complication. This study intends to compare these novel surgical procedures through a 2-year follow-up evaluation. Methods: From May 2017 to May 2021, 77 patients with single-level unstable KD were included in the PPP group, and 42 patients received the PVP-bone cement bridging screw system were included in the screw group. The changes in the vertebral body index (VBI), bisegmental Cobb angle, visual analogue scale (VAS) and Oswestry Disability Index (ODI) and the cement loosening rate and displacement rate at different follow-up time points were used to evaluate the clinical efficacy. Results: There was no significant difference in VBI or bisegmental Cobb angle between the 2 groups (p > 0.05) before operation, immediately after operation and at 6-month followup, while at 1-year and 2-year postoperative evaluations, the screw group had higher VBI and bisegmental Cobb angle than the PPP group (p < 0.05). Before operation, immediately after operation, at 6-month and 1-year follow-up, there was no significant difference in VAS or ODI score between the 2 groups (p > 0.05), while at 2-year follow-up, the screw group still had higher VAS and ODI scores than the PPP group (p < 0.05). No bone cement displacement occurred in both groups, but the rate of bone cement loosening was 14.29% in group PPP, and 0 in screw group (p < 0.05). Conclusion This 2-year follow-up study shows that the PVP-bone cement bridging screw system combined therapy had better midterm treatment efficacy than the PVP-PPP combined therapy in patients with unstable KD, and the bone cement bridging screw system is a preferred therapy with better anti cement loosening ability.

Objective: Percutaneous vertebroplasty (PVP) is currently the most common surgical procedure for unstable Kummell disease (KD), but cement loosening or displacement often occurs after PVP. We had been using percutaneous pediculoplasty (PPP) or a self-developed bone cement bridging screw system to avoid this severe complication. This study intends to compare these novel surgical procedures through a 2-year follow-up evaluation. Methods: From May 2017 to May 2021, 77 patients with single-level unstable KD were included in the PPP group, and 42 patients received the PVP-bone cement bridging screw system were included in the screw group. The changes in the vertebral body index (VBI), bisegmental Cobb angle, visual analogue scale (VAS) and Oswestry Disability Index (ODI) and the cement loosening rate and displacement rate at different follow-up time points were used to evaluate the clinical efficacy. Results: There was no significant difference in VBI or bisegmental Cobb angle between the 2 groups (p > 0.05) before operation, immediately after operation and at 6-month followup, while at 1-year and 2-year postoperative evaluations, the screw group had higher VBI and bisegmental Cobb angle than the PPP group (p < 0.05). Before operation, immediately after operation, at 6-month and 1-year follow-up, there was no significant difference in VAS or ODI score between the 2 groups (p > 0.05), while at 2-year follow-up, the screw group still had higher VAS and ODI scores than the PPP group (p < 0.05). No bone cement displacement occurred in both groups, but the rate of bone cement loosening was 14.29% in group PPP, and 0 in screw group (p < 0.05). Conclusion This 2-year follow-up study shows that the PVP-bone cement bridging screw system combined therapy had better midterm treatment efficacy than the PVP-PPP combined therapy in patients with unstable KD, and the bone cement bridging screw system is a preferred therapy with better anti cement loosening ability.