Molecular epidemiology and transmission of HIV in Tianjin, 2015 / 中华流行病学杂志

Objective To understand the characteristics on the diversity of HIV subtypes and related transmission in Tianjin.Methods A total of 77 newly diagnosed ART-na(i)ve HIV infectors in 2015 were screened by CD4 +T cell counts ≥200 cells/μl.Viral RNAs were extracted from plasma samples.Reverse transcription PCR and nested PCR were used to analyze the amplification of pol and env gene fragments,sequencing,and related bioinformatics information.Results 46.03％ (29/63),30.16％ (19/63),11.11％ (7/63),4.76％ (3/63) and 7.94％ (5/63) of the individuals were infected under HIV subtypes CRF01_AE,CRF07_BC,B,CRF55_01B and URFs,with sexual transmission as the major mode of infection.CRF01_AE and CRF07_BC strains were predominant in both MSM and HST populations.The patterns of subtype distribution did not show statistical differences other than subtype B and CRF55_01B strain among HSTs.The proportion of CRFs increased significantly to 88.89％.8 new second-generation recombinant forms were identified the first time,including 3 CRF55_01B,2 AE/BC,1 AE/B and 1AE/B/C among MSMs and 1 AE/BC among HSTs.5.3％ of the NNRTI L100I HIV infectors transmitted the drug-resistant-mutation strain.3 linkages related to HIV transmission were confirmed through phylogenetic analysis with Bootstrap ≥98％ of pol and ≥80％of env.Conclusion The increasing complexity of HIV had been noticed in Tianjin,including the prevalence and transmission of second-generation recombinant and drug-resistant strains through different routes of transmission and in different regions.

Molecular epidemiology and transmission of HIV in Tianjin, 2015 / 中华流行病学杂志

Objective To understand the characteristics on the diversity of HIV subtypes and related transmission in Tianjin.Methods A total of 77 newly diagnosed ART-na(i)ve HIV infectors in 2015 were screened by CD4 +T cell counts ≥200 cells/μl.Viral RNAs were extracted from plasma samples.Reverse transcription PCR and nested PCR were used to analyze the amplification of pol and env gene fragments,sequencing,and related bioinformatics information.Results 46.03％ (29/63),30.16％ (19/63),11.11％ (7/63),4.76％ (3/63) and 7.94％ (5/63) of the individuals were infected under HIV subtypes CRF01_AE,CRF07_BC,B,CRF55_01B and URFs,with sexual transmission as the major mode of infection.CRF01_AE and CRF07_BC strains were predominant in both MSM and HST populations.The patterns of subtype distribution did not show statistical differences other than subtype B and CRF55_01B strain among HSTs.The proportion of CRFs increased significantly to 88.89％.8 new second-generation recombinant forms were identified the first time,including 3 CRF55_01B,2 AE/BC,1 AE/B and 1AE/B/C among MSMs and 1 AE/BC among HSTs.5.3％ of the NNRTI L100I HIV infectors transmitted the drug-resistant-mutation strain.3 linkages related to HIV transmission were confirmed through phylogenetic analysis with Bootstrap ≥98％ of pol and ≥80％of env.Conclusion The increasing complexity of HIV had been noticed in Tianjin,including the prevalence and transmission of second-generation recombinant and drug-resistant strains through different routes of transmission and in different regions.

Clinical efficacy of RevoLix 2μm laser combined with pirarubicin in the treatment of non-muscular invasive bladder cancer and its effect on VEGF level / 中国生化药物杂志

Objective To investigate curative efficacy of RevoLix 2 μm laser in combined with pirarubicine in the treatment of non-muscular invasive bladder cancer and its effects on level of serum vascular endothelial growth factor (VEGF).Methods 115 cases with non-muscular invasive bladder cancer who received therapy in our hospital from January 2012 to April 2013 were selected as research objects to retrospectively analyze their materials.According to therapeutic schemes,patients were divided into group A ( n=52 ) and group B ( n =63 ).Group A was given electrocision of bladder tumor and perfusion of pirarubicine 30 mg in 5% glucose injection 30 mL,one times per week,for eight weeks,and then one times per month,a total of one year; while group B was given RevoLix 2μm laser resection of bladder tumor and perfusion of pirarubicine 30 mg in 5% glucose injection 30 mL,one times per week, for eight week, and then one times per month, a total of one year.Then, operation status, incidence of complications after operation,level of VEGF and recurrence rate between the two groups were observed and compared.Results Compared with group A, group B had statistically less bleeding volume,shorter retention time of urinary tube and hospitalization time (P<0.05),while operation time in the two groups was statistically same.After operation,incidence of complications in group B was 3.2%,which was statistically lower than that of 15.4% in group A ( P<0.05).On admission and 1 week after operation,levels of VEGF of two groups had no significant differences.8 weeks and 6 months after operation,level of VEGF in group B was statistically lower than that in group A respectively (P<0.05).After the two-year follow-up,recurrence rate in group B was 4.8%,which was statistically lower than that of 17.3% in group A (P<0.05).Conclusion RevoLix 2μm laser combined with pirarubicine is effective for patients with non-muscular invasive bladder cancer with less bleeding volume,quicker postoperative recovery,lower incidence of complications and recurrence rate after operation.This may be related to the decrease of serum VEGF level in patients,it is necessary to further study.

Effect of QianlieShutong capsule combined with tamsulosin on serum testosterone and estrogen in patients with benign prostatic hyperplasia and its efficacy / 中国生化药物杂志

Objective To investigate the clinical effect of QianlieShutong capsule in combination with tamsulosin in the treatment of benign prostatic hyperplasia ( BPH) and its effects on serum testosterone and estrogen.Methods 114 cases of BPH were randomly divided into control group (n=54) and observation group (n=60).The control group were treated with tamsulosin, while the observation group were treated with QianlieShutong capsule in combination with tamsulosin.Then, the curative efficacy, improvement of related indexes, level of serum testosterone, estrogen and adverse reactions were compared.Results The observation group had a total therapeutic efficacy ratio of 95.0%, which was statistically higher than that of 83.3% in control group (P<0.05).In comparison with control group after the treatment, international prostate symptom score (IPSS), residual urine (Ru), prostate volume (PV) in observation group statistically decreased, and maximum flow rate (Qmax), level of estrogen increased (all P<0.05), while level of testosterone in two groups was statistically same.During the treatment, there’ s no case of severe adverse reaction.And the incidence of adverse reactions in the observation group was 13.3%, which was statistically same with that of 11.1% in control group.Conclusion Combined treatment of QianlieShutong capsule and tamsulosin is effective for BPH, which can significantly increase curative efficacy, improve related indexes and regulate level of sexual hormone with minor adverse reactions.

Epidemiological characteristics of human avian influenza A (H7N9) virus infection in China / 中华流行病学杂志

<p><b>OBJECTIVE</b>To investigate the epidemiological characteristics of human infections with avian influenza A (H7N9) in China and to provide scientific evidence for the adjustment of preventive strategy and control measures.</p><p><b>METHODS</b>Demographic and epidemiologic information on human cases were collected from both reported data of field epidemiological investigation and the reporting system for infectious diseases.</p><p><b>RESULTS</b>A total of 433 cases including 163 deaths were reported in mainland China before June 4, 2014. Two obvious epidemic peaks were noticed, in March to April, 2013 and January to February, 2014. Confirmed cases emerged in 14 areas of China. Five provinces, including Zhejiang, Guangdong, Jiangsu, Shanghai, and Hunan, reported about 85% of the total cases. Median age of the confirmed cases was 58 years (range, 1-91), with 70% as males. Of the 418 cases with available data, 87% had ever exposed to live poultry or contaminated environments. 14 clusters were identified but human to human transmission could not be ruled out in 9 clusters.</p><p><b>CONCLUSION</b>Human infections with avian influenza A (H7N9) virus showed the characteristics of obvious seasonal distribution, with certain regional clusters. The majority of confirmed cases were among the elderly, with more males seen than the females. Data showed that main source of infection was live poultry and the live poultry market had played a significant role in the transmission of the virus.</p>

Long-term results of chemotherapy alone or combined with radiation therapy for limited-stage small cell lung cancer / 中国肺癌杂志

<p><b>BACKGROUND</b>To evaluate therapeutic outcome of limited stage small cell lung cancer treated with chemotherapy alone or combined with radiation therapy with different doses.</p><p><b>METHODS</b>A retrospective analysis was performed in 128 limited-stage small cell lung cancer patients who were treated with three different ways of treatment, from February 1988 to March 1998 in Heilongjiang Cancer Hospital. All patients were pathologically proved. Forty-two patients received chemotherapy alone (C), 48 patients were treated by interdigitating chemoradiotherapy (IDG) and other 38 patients received concurrent chemoradiotherapy (CON). For thoracic radiation, 20 patients received a dose of ≤45 Gy, 23 ≥60 Gy, and 43 > 45 Gy but < 60 Gy .</p><p><b>RESULTS</b>The 3-year survival rates were 23.7%, 20.8% and 4.8% in the CON, the IDG and the C groups respectively. There was a significant difference between the CON and the C groups ( P < 0.05), as well as between the IDG and the C groups ( P < 0.05). There was no remarkable difference between the CON and the IDG groups ( P > 0.05). Loco-regional recurrence rate was significantly higher in ≤45 Gy group (55.0%) than that in ≥60 Gy group (8.7%)( P < 0.01).</p><p><b>CONCLUSIONS</b>The chemotherapy combined radiotherapy may improve the survival of patients with limited-stage small cell lung cancer. Dose of thoracic radiation might be related to the loco-regional recurrence.</p>

PRE-OPERATIVE RADIOTHERAPY FOR RECTAL CANCER:A PREOSPECTIVE RANDOMIZED TRIAL ON 225 CASES / 中华放射肿瘤学杂志

From October 1978 through 1983, 225 rectal cancer patients were randomized into R+S group (115 patients) and S only group (110 patients). The radiation dose of pre-operative radiotherapy was 30～45Gy/3～4.5 wks. Radical or palliative resection was done after a rest of 2～4 weeks. The lymphatic metastasis and local recurrence rates of the R+S group (20.6% and 27.8%) were lower than those of the S only group(32.7% and 41.8%)(P