Long Non-coding RNA COX10-AS1 Promotes Glioma Progression by Competitively Binding miR-1-3p to Regulate ORC6 Expression.

Glioma is one of the most common and difficult to cure malignant primary tumors of the central nervous system. Long non-coding RNA (lncRNA) has been reported to play important functions in biological processes of many tumors, including glioma. In our study, we aimed to reveal the role and molecular mechanisms of lncRNA COX10-AS1 in regulating the progression of glioma. First of all, we showed that lncRNA COX10-AS1 was significantly increased in glioma tissues and cell lines, and high-expressed COX10-AS1 was associated with a poor prognosis in glioma patients. Moreover, through performing the functional experiments, including CCK-8, colony formation and Transwell assays, we confirmed that COX10-AS1 ablation curbed cell proliferation, migration and invasion in glioblastoma (GBM) cells. In addition, we uncovered that there existed a regulatory relationship that COX10-AS1 upregulated OCR6 by sponging miR-1-3p in GBM cells, and the following rescue assays demonstrated that both miR-1-3p downregulation and origin recognition complex subunit 6 (ORC6) overexpression rescued cell viability, migration and invasion in the COX10-AS1-deficient GBM cells. Consistently, we also verified that COX10-AS1 promoted tumorigenesis of the GBM cells in vivo through modulating the miR-1-3p/ORC6 axis. On the whole, our findings indicated a novel ceRNA pattern in which COX10-AS1 elevated OCR6 expression via sponging miR-1-3p, therefore boosting tumorigenesis in glioma, and we firstly discussed the underlying mechanisms by which the COX10-AS1/miR-1-3p/ORC6 axis affected the progression of glioma.

Description of five larvae of the genus Gnaptorina Reitter, 1887 from Xizang, China (Coleoptera, Tenebrionidae, Blaptinae), with molecular species delimitation and diagnoses.

With 39 described species in three subgenera, the Gnaptorina is the second most species-rich genus in the subtribe Gnaptorinina (Tenebrionidae: Blaptinae). In this study, a phylogeny of Gnaptorina was reconstructed based on one nuclear (28S-D2) and three mitochondrial (COI, Cytb, and 16S) gene fragments; multiple molecular species delimitation approaches were also implemented to assess the taxonomic status of larval specimens based on COI gene fragment. Larvae of five known species of the subgenus Hesperoptorina are described and illustrated for the first time: Gnaptorinanigera Shi, Ren & Merkl, 2007, Gnaptorinatishkovi Medvedev, 1998, Gnaptorinabrucei Blair, 1923, Gnaptorinahimalaya Shi, Ren & Merkl, 2007, Gnaptorinakangmar Shi, Ren & Merkl, 2007. A key to larvae of four genera of the tribe Blaptini and a key to the known larvae of the genus Gnaptorina are provided. This study provides valuable morphological data for larval studies of the tribe Blaptini.

The adult, pupa, and larva of a new species of Gnaptorina Reitter, 1887 (Coleoptera, Tenebrionidae, Blaptini) from the Tibetan Plateau, with molecular phylogenetic inferences.

The adult, pupa and larva of a new species, Gnaptorina (Gnaptorina) lhorongica Li, sp. nov., from northeastern Xizang, China are described and illustrated. The species was identified using molecular phylogenetic analyses based on three mitochondrial fragments and one nuclear gene fragment (COI, Cytb, 16S, and 28S-D2). The taxonomic status of the new species is confirmed using a combination of molecular and morphological datasets. This study provides valuable molecular and morphological data for phylogenetic studies of the tribe Blaptini.

Biological characteristics of flowers and examination of pollen viability at different developmental stages of Epimedium sagittatum (Sieb. et Zucc.) Maxim.

To gain a deeper understanding of the flowering pattern and reproductive characteristics of Epimedium sagittatum, to enrich the research on the flower development of E. sagittatum and its reproductive regulation, and to screen the methods suitable for the rapid detection of pollen viability of E. sagittatum and to promote its cross-breeding. The characteristics of its flower parts were observed, recorded and measured, and the pollen viability of E. sagittatumwas determined by five methods, including TTC staining, I2-KI staining, red ink staining, peroxidase method and in vitro germination method. The flowering process of E. sagittatum can be divided into five stages: calyx dehiscence, bract spathe, petal outgrowth, pollen dispersal, and pollination and withering. The results of I2-KI staining and peroxidase method were significantly higher than those of other methods; the in vitro germination method was intuitive and accurate, but the operation was complicated and time-consuming; the red ink staining method was easy to operate and had obvious staining effect, and the results were the closest to those of the in vitro germination method; and it was found that the pollen of E. sagittatum was not as effective as the in vitro germination method at the bud stamen stage, the flower stigma and the flower bud. It was also found that the pollen viability and germination rate of E. sagittatum pollen were higher in the three periods of bud spitting, petal adductor and pollen dispersal. Comparing the five methods, the red ink staining method was found to be a better method for the rapid detection of pollen viability; the best pollination periods of E. sagittatum were the bud stamen stage, petal adductor stage, and pollen dispersal stage of flowers at the peak of bloom. This study on the flowering and fruiting pattern of E. sagittatum, and the related mechanism of sexual reproduction, can be used as a reference for the next step of research on the breeding of E. sagittatum.

Dynamic changes and influencing factors of HIV-1 DNA load in HIV-1 infected individuals under antiretroviral therapy / 中华流行病学杂志

Objective: To analyze the dynamic changes and influencing factors of HIV-1 DNA load in HIV-1 infected individuals under antiretroviral therapy (ART) in Dehong Dai and Jingpo autonomous prefecture, Yunnan province, and provide information support for the clinical use of HIV-1 DNA quantitative detection. Methods: The HIV infection cases in recent infection cohort from Dehong Center for Disease Control and Prevention during 2009-2018 were selected as study subjects. The dynamic curve of HIV-1 DNA load varrying with time was generated and logistic regression analysis was conducted to identify the risk factors for HIV-1 load in the recent follow up after ART and statistical analysis was performed by using SPSS 17.0. Results: Among the 113 HIV infection cases detected from the recent infection cohort, the recent HIV infection rate were 49.6%(56/113) males, sexual transmission cases and drug injection transmission cases accounted for 53.1% (60/113), 80.5% (91/113) and 19.5% (22/113), respectively. The dynamic changes curve showed that HIV-1 DNA load was relatively high (>800 copies /106 PBMCs) before ART, and droped rapidly (<400 copies /106 PBMCs) after ART for 1 year. However, HIV-1 DNA load decreased insignificantly from the second year of ART, and remained to be 269 copies/106 PBMCs after ART for 6 years. Univariable logistic regression analysis indicated that OR (95%CI) of CD8, CD4/CD8 and HIV-1 DNA load were 1.00 (1.00-1.00), 0.30 (0.09-1.05) and 1.01 (1.00-1.01), respectively. Multivariable logistic regression analysis showed that OR value of HIV-1 DNA load base was 1.00 (1.00-1.01). Conclusions: HIV-1 DNA load decreased significantly in the first year of ART, then remained stable for years. HIV-1 DNA load base was the key factor associated with the decrease of HIV-1 DNA load, the lower the HIV-1 DNA load base, the lower HIV-1 DNA load. Therefore, earlier ART can contribute to the decrease of HIV-1 DNA load.

Liver Organoids: Formation Strategies and Biomedical Applications

The liver is the most important digestive organ in the body. Several studies have explored liver biology and diseases related to the liver. However, most of these studies have only explored liver development, mechanism of liver regeneration and pathophysiology of liver diseases mainly based on two-dimensional (2D) cell lines and animal models.Traditional 2D cell lines do not represent the complex three-dimensional tissue architecture whereas animal models are limited by inter-species differences. These shortcomings limit understanding of liver biology and diseases. Liver organoid technology is effective in elucidating structural and physiological characteristics and basic tissue-level functions of liver tissue. In this review, formation strategies and a wide range of applications in biomedicine of liver organoid are summarized. Liver organoids are derived from single type cell culture, such as induced pluripotent stem cells (iPSCs), adult stem cells, primary hepatocytes, and primary cholangiocytes and multi-type cells co-culture, such as iPSC-derived hepatic endoderm cells co-cultured with mesenchymal stem cells and umbilical cord-derived endothelial cells. In vitro studies report that liver organoids are a promising model for regenerative medicine, organogenesis, liver regeneration, disease modelling, drug screening and personalized treatment. Liver organoids are a promising in vitro model for basic research and for development of clinical therapeutic interventions for hepatopathy.

Liver Organoids: Formation Strategies and Biomedical Applications

The liver is the most important digestive organ in the body. Several studies have explored liver biology and diseases related to the liver. However, most of these studies have only explored liver development, mechanism of liver regeneration and pathophysiology of liver diseases mainly based on two-dimensional (2D) cell lines and animal models.Traditional 2D cell lines do not represent the complex three-dimensional tissue architecture whereas animal models are limited by inter-species differences. These shortcomings limit understanding of liver biology and diseases. Liver organoid technology is effective in elucidating structural and physiological characteristics and basic tissue-level functions of liver tissue. In this review, formation strategies and a wide range of applications in biomedicine of liver organoid are summarized. Liver organoids are derived from single type cell culture, such as induced pluripotent stem cells (iPSCs), adult stem cells, primary hepatocytes, and primary cholangiocytes and multi-type cells co-culture, such as iPSC-derived hepatic endoderm cells co-cultured with mesenchymal stem cells and umbilical cord-derived endothelial cells. In vitro studies report that liver organoids are a promising model for regenerative medicine, organogenesis, liver regeneration, disease modelling, drug screening and personalized treatment. Liver organoids are a promising in vitro model for basic research and for development of clinical therapeutic interventions for hepatopathy.

Rapid screening of single guide RNA targeting pig genome and the harvesting of monoclonal cells by microarray seal / 生物医学工程学杂志

The emergence of regular short repetitive palindromic sequence clusters (CRISPR) and CRISPR- associated proteins 9 (Cas9) gene editing technology has greatly promoted the wide application of genetically modified pigs. Efficient single guide RNA (sgRNA) is the key to the success of gene editing using CRISPR/Cas9 technology. For large animals with a long reproductive cycle, such as pigs, it is necessary to screen out efficient sgRNA

AIDS， syphilis and gonorrhea testing results among 385 men who have sex with men in Dehong Prefecture in 2018 / 上海预防医学

ObjectiveTo understand the infection of AIDS， syphilis， and gonorrhea in men who have sex with men （MSM）， and the factors influencing the acceptance of gonorrhea testing in Dehong Dai Jingpo Autonomous Prefecture （Dehong Prefecture）， Yunnan Province. MethodsAcross-sectional survey was conducted to describe and analyze the acceptance of AIDS， syphilis， and gonorrhea testing among MSM tracked in Dehong Prefecture in 2018. ResultsA total of 385 MSM were included in the analysis， with a 100.0% HIV and syphilis testing rate. The HIV antibody positivity rate was 10.6% （41/385） and the positivity rate of syphilis antibody was 14.8%（57/385）. Only 30.4% of the subjects were willing to test for gonorrhea， and 13.7%（16/117）of them were test positive. Further multifactorial analysis revealed that local MSM and syphilis co-infected individuals were more likely to be tested for gonorrhea （aOR=2.48， 95%CI=1.33-4.65， P=0.004； aOR=2.59， 95%CI=1.43-4.71， P=0.002）. ConclusionThe positive rates of AIDS， syphilis and gonorrhea in MSM population in Dehong Prefecture are relatively high. Integrated interventions of STD/AIDS and gonorrhoea detection should be strengthened.

AIDS， syphilis and gonorrhea testing results among 385 men who have sex with men in Dehong Prefecture in 2018 / 上海预防医学

ObjectiveTo understand the infection of AIDS， syphilis， and gonorrhea in men who have sex with men （MSM）， and the factors influencing the acceptance of gonorrhea testing in Dehong Dai Jingpo Autonomous Prefecture （Dehong Prefecture）， Yunnan Province. MethodsAcross-sectional survey was conducted to describe and analyze the acceptance of AIDS， syphilis， and gonorrhea testing among MSM tracked in Dehong Prefecture in 2018. ResultsA total of 385 MSM were included in the analysis， with a 100.0% HIV and syphilis testing rate. The HIV antibody positivity rate was 10.6% （41/385） and the positivity rate of syphilis antibody was 14.8%（57/385）. Only 30.4% of the subjects were willing to test for gonorrhea， and 13.7%（16/117）of them were test positive. Further multifactorial analysis revealed that local MSM and syphilis co-infected individuals were more likely to be tested for gonorrhea （aOR=2.48， 95%CI=1.33-4.65， P=0.004； aOR=2.59， 95%CI=1.43-4.71， P=0.002）. ConclusionThe positive rates of AIDS， syphilis and gonorrhea in MSM population in Dehong Prefecture are relatively high. Integrated interventions of STD/AIDS and gonorrhoea detection should be strengthened.

The present situation of access to HIV/AIDS public health services among cross-border couples in Dehong Prefecture / 中华疾病控制杂志

Objective To investigate the accessibility of HIV-related public health services among cross-border couples living in Dehong Prefecture and age differences. Methods A cross-sectional survey was conducted among cross-border couples in Dehong Prefecture from January 2017 to July 2019. Results In total, 32 182 participants were included. The proportion of people who had received HIV testing services, HIV-related intervention services in past year, care and help in the past year, and participated in new rural cooperative medical services (NCMS) were 57.8%, 92.7%, 6.5% and 94.5%, respectively; and the latter three services were significantly different across age groups (P<0.001). In multivariable Logistic regression model, variables significantly associated with having ever received HIV testing services older age (51-85 years: OR=0.71, 95% CI: 0.63-0.81), women (OR=1.14, 95% CI:1.03-1.25), county/city (Longchuan: OR=6.30, 95% CI: 5.72-6.93; Lianghe: OR=1.27, 95% CI: 1.11-1.44; Yingjiang: OR=0.88, 95% CI: 0.82-0.94), Dai ethnic minority (OR=1.60, 95% CI: 1.50-1.72), marriage registration (marriage registration for border inhabitants: OR=0.60, 95% CI: 0.56-0.65; non-registration: OR=0.66, 95% CI: 0.62-0.70), years of marriage (4-5 years: OR=1.21, 95% CI: 1.12-1.31; 6-60 years: OR=1.30, 95%CI:1.22-1.39), having not received care and help in the past year (OR=0.64, 95% CI: 0.58-0.71) and having not participated in NCMS (OR=0.58, 95% CI: 0.52-0.65). Conclusions The accessibility to HIV-related public health services are relatively high among cross-border couples in Dehong Prefecture. However, the relatively low proportion of receiving AIDS testing services, particularly among certain groups and counties/cities, need to be strengthened.

Epidemiological characteristics of co-infection of hepatitis C virus among newly reported HIV infeced patients in Chinese and Burmese from 2016 to 2017 in Dehong Prefecture of Yunnan Province / 中华疾病控制杂志

Objective To understand the prevalence and epidemiological characteristics of hepatitis C virus (HCV) co-infection among newly reported HIV-infected patients from 2016 to 2017 in Dehong Prefecture of Yunnan Province. Methods A cross-sectional survey was conducted to detect HCV antibodies in 2 196 newly reported HIV-infected persons in Dehong Prefecture, Yunnan Province, from 2016 to 2017. Results A total of 694 cases(31.6%) were detected antibodies against HCV during HIV-infected persents. The prevalence of HCV co-infection among newly reported HIV-infected patients in Chinese and Burmese was 14.4% (112/780) and 41.1% (582/1 416), respectively. Moreover, the prevalence of HCV co-infection was higher in male, ethnic minorities such as Dai and Jingpo minority, primary school and below and farmers in both Chinese and Burmese. Multivariate Logistic regression model showed that HCV infection was associated with male, Dai minority, HIV infection by injecting drug and famers among Chinese and Burmese reported HIV-infected patients. Conclusions The prevalence of HCV co-infection was high among newly reported in Dehong Prefecture of Yunnan Province. Meanwhile, the epidemiological characteristics of HIV/HCV co-infections in Chinese and Burmese are different, thus different prevention and control measures are needed for patients of different nationalities.

HIV prevalence and risk factors among premarital couples in Dehong Prefecture of Yunnan Province, 2017 / 中华疾病控制杂志

Objective To understand the prevalence of HIV infection and its influencing factors in the premarital physical examination population in Dehong Prefecture, Yunnan Province, 2017. Methods The data of people receiving premarital medical examination was collected, the demographic characteristics was described and the related factors was analyzed by Logistic regression. Results There were 21 875 participants receiving premarital medical examination in Dehong. 98(0.45%) participants were confirmed positive for HIV and male infection rate was 0.47% (52/10 955) and female was 0.42% (46/10 920). Among the 98 patients, 20 patients were infected in the first time, and main route was sexual transmission accounting for 81.63% (80/98). Logistic multivariate regression analysis showed that age, ethnicity and drug use were the influencing factors for premarital couples infecting HIV. The risk of HIV infection in 31-40 and 41-50 years old group was higher than the people under 25 years old group(OR=3.78, 95% CI：1.81-7.89, P<0.001；OR=3.95, 95% CI：1.72-9.08, P=0.001). The infection risk of Dai and Jingpo ethnic group was higher than that of the Han ethnic(OR=1.86, 95% CI：1.06-3.29, P=0.031；OR=3.25, 95% CI：1.81-5.84, P<0.001). The risk of infection among drug users was much higher than non-drug users (OR=926.76, 95% CI：271.65-3 161.71, P<0.001). Conclusion Age, ethnicity, and drug use are influencing factors of HIV infection among premarital couples. Targeted measures need to be taken against risk factors. HIV infection is mainly transmitted by sexual transmission. It can be effectively detected and controlled through premarital medical examination.

Research progress of producing genetically modified pigs by CRISPR/Cas9 in the medical field / 生物医学工程学杂志

As pigs are similar to humans in anatomy, physiology and pathology, nutrition metabolism and disease characteristics, genetically modified pigs are already used for the studies of disease mechanism, pathology and toxicology and the evaluation of drugs. But the production of large modified animals is difficult, cumbersome, time-consuming and costly. With the breakthrough of gene editing technology, clustered regularly interspersed short palindromic repeat (CRISPR)/CRISPR-associated 9( Cas9)(CRISPR/Cas9) technology has greatly improved the mutation efficiency, reduced the cost and simplified the steps, and promoted the widespread application of genetically modified pigs. In this paper, the production methods of genetically modified pigs and the research progress of genetically modified pigs by CRISPR/Cas9 in the medical field were reviewed.

Development and Standardization of a New Cognitive Assessment Test Battery for Chinese Aphasic Patients: A Preliminary Study / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Nonlinguistic cognitive impairment has become an important issue for aphasic patients, but currently there are few neuropsychological cognitive assessment tests for it. To get more information on cognitive impairment of aphasic patients, this study aimed to develop a new cognitive assessment test battery for aphasic patients, the Non-language-based Cognitive Assessment (NLCA), and evaluate its utility in Chinese-speaking patients with aphasia.</p><p><b>METHODS</b>The NLCA consists of five nonverbal tests, which could assess five nonlinguistic cognitive domains such as visuospatial functions, attention test, memory, reasoning, and executive functions of aphasic patients. All tests are modified from the nonverbal items of the current existed tests with some changes to the characteristics of Chinese culture. The NLCA was tested in 157 participants (including 57 aphasic patients, 50 mild cognitive impairment (MCI) patients, and 50 normal controls), and was compared with other well-established relative neuropsychological tests on the reliability, validity, and utility.</p><p><b>RESULTS</b>The NLCA was fully applicable in the MCI patients and the normal controls, almost working in the aphasic patients (57/62 patients, 91.9%). The NLCA scores were 66.70 ± 6.30, 48.67 ± 15.04, and 77.58 ± 2.56 for the MCI group, the aphasic group, and the control group, respectively , and a significant difference was found among three groups (F = 118.446, P < 0.001). The Cronbach's alpha of the NLCA as an index of internal consistency was 0.805, and the test-retest and interrater reliability was adequate (r=0.977 and r= 0.970, respectively). The correlations of the cognitive subtests and their validation instruments were between 0.540 and 0.670 (all P < 0.05). Spearman's correlation analysis indicated that the coefficient of internal consistency of each subtest itself was higher than other subtests. When choosing the Montreal Cognitive Assessment score of <26 as the diagnostic criteria of cognitive impairment, the area under the curve for all participants in the control and MCI groups was 0.942 (95% confidence interval: 0.895-0.989), and an optimal cutoff point of 75.00 seemed to provide the best balance between sensitivity and specificity. Age (r = -0.406, P < 0.001) was the main influence factor for the NLCA.</p><p><b>CONCLUSIONS</b>The NLCA could efficiently differentiate the cognitive impairment patients from the normal controls and is a reliable and valid cognitive assessment test battery to specially find nonlinguistic cognitive function for aphasic patients.</p>

Anticoagulant Ability and Heparinization of Decellularized Biomaterial Scaffolds / 生物医学工程学杂志

In order to enhance the anticoagulant properties of decellularized biological materials as scaffolds for tissue engineering research via heparinized process, the decellularized porcine liver scaffolds were respectively immobilized with heparin through layer-by-layer self-assembly technique (LBL), multi-point attachment (MPA) or end-point attachment (EPA). The effects of heparinization and anticoagulant ability were tested. The results showed that the three different scaffolds had different contents of heparin. All the three kinds of heparinized scaffolds gained better performance of anticoagulant than that of the control scaffold. The thrombin time (TT), prothrombin time (PT) and activated partial thromboplastin time (APTT) of EPA scaffold group were longest in all the groups, and all the three times exceeded the measurement limit of the instrument. In addition, EPA scaffolds group showed the shortest prepared time, the slowest speed for heparin release and the longest recalcification time among all the groups. The decellularized biological materials for tissue engineering acquire the best effect of anticoagulant ability in vitro via EPA heparinized technique.

Evaluation of PIMA point-of-care CD4 analyzer in Yunnan, China / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>CD4 count is used to determine antiretroviral therapy (ART) eligibility. In China, flow cytometers are mostly located in urban areas with limited access by patients residing in remote areas. In an attempt to address this issue, we conducted a study to validate the performance of Alere PIMA point-of-care CD4 analyzer.</p><p><b>METHODS</b>Venous and finger-prick blood specimens were collected from HIV-positive participants from two voluntary counseling and testing sites in Yunnan Province. Both venous and finger-prick blood specimens were tested with the PIMA analyzer. Venous blood specimens tested with the Becton Dickinson FACSCalibur were used as a reference.</p><p><b>RESULTS</b>Venous specimens from 396 and finger-prick specimens from 387 persons were available for analysis. CD4 counts by PIMA correlated well with those from FACSCalibur with an R2 of 0.91 for venous blood and 0.81 for finger-prick blood. Compared to FACSCalibur, the PIMA analyzer yielded lower counts with a mean bias of - 47.0 cells/μl (limit of agreement, [LOA]: -204-110 cells/μl) for venous blood and -71.0 cells/μl (LOA: -295-153 cells/μl) for finger-prick blood. For a CD4 threshold of 350 cells/μl, the positive predictive value (PPV) of PIMA was 84.2% and 75.7% and the negative predictive value (NPV) was 97.6% and 95.8% for venous and finger-prick blood, respectively. For an ART threshold of 500 cells/μl, the corresponding PPV was 90.3% and 84.0% and NPV was 94.3% and 93.4%, respectively.</p><p><b>CONCLUSIONS</b>CD4 counting using venous blood with PIMA analyzers is a feasible alternative to a large flow cytometer to determine ART eligibility.</p>

Diagnosis and treatment of pyriform sinus perforation / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>To study the early diagnosis, treatment and Prognosis of pyriform sinus perforation.</p><p><b>METHODS</b>To study the clinical feature about 15 cases of pyriform sinus perforation, Most of the 15 cases with pyriform sinus perforation were associated with pharyngeal pain or fever. contrast x-ray studies and CT scan were used to confirm the perforation. conservative treatment in 9 cases and surgical intervention in 6 cases. and review relevant literature.</p><p><b>RESULTS</b>Of all 15 cases, 9 cases with wild symptoms for conservative treatment, 6 cases with severe symptoms and complications were treated surgically. All achieved better clinical efficacy, By relevant examination, the perforation were healed within 2 - 4 weeks and none had re-perforation for 1 - 30 months follow-up.</p><p><b>CONCLUSIONS</b>Pyriform sinus perforation with wild symptoms and within 12 hours can be treated conservatively. Large perforation (> 2 cm) last more than 12 hours or any complications require exploration, operation repair if possible and adequate drainage. early diagnosis and effective treatment can reduce the incidence of complications and improve the survival rate of patients.</p>

Study on the role of western blot band profile for the detection of recent HIV infection / 中华流行病学杂志

<p><b>OBJECTIVE</b>To obtain information on HIV disease progression through western blot (WB) band profile.</p><p><b>METHODS</b>1466 available serum samples of newly reported HIV/AIDS cases, confirmed by WB from Dehong prefecture of Yunnan province in 2011, were tested, using the BED HIV Incidence Capture Enzyme Immunoassay (BED-CEIA) and Limiting Antigen Avidity Enzyme Immunoassay (LAg-Avidity EIA), respectively. Differences of WB band profiled between recent infections and established infections were then compared.</p><p><b>RESULTS</b>Infections defined as 'recent' showed lower mean antibody intensities to p17, p24, p31, gp41, p51, p55, p66, gp120 and gp160 in WB when compared to those established infections with statistical difference(P < 0.05).</p><p><b>CONCLUSION</b>These WB band profiles which were considered as 'recent' infections would include factors as:lack of antibody reactivity to gp41 antigen, with intensity scores of all bands lower than 13, and those intensity scores of antibody to env protein lower than 5 or to pol protein lower than 4.</p>