Objective To explore the correlation between hepatitis B virus large surface protein(HBV-LP)and hepatitis B virus deoxyribonucleic acid(HBV-DNA),analyze the clinical significance of detecting the two index dynamically for diagnosis and treatment of hepatitis B.Methods Enzyme linked immunosorbent assay(ELISA)and fluorescent quantitation polymerase chain reaction(FQ-PCR)were used to detect the levels of HBV-LP and HBV-DNA in serum specimen of 230 hepatitis B patients.Results There was a positive correlation between the content of HBV-LP and copy numbers of HBV-DNA in serum of hepatitis B positive cases(r=0.84,P＜0.01).The positive rate was 84.78％ in HBV-LP and 84.35％ in HBV-DNA of 230 HBV positive cases.As a result there was no significant difference(P＞0.05)in this study.Therefore,the positive rate was 63.63 ％(35/55)in HBV-LP and 58.18％(32/55)in HBV-DNA of 55 HBV negative cases.There was also no significant difference(P＞0.05)in this study.However,the positive rate of HBV-LP(82.47％)was higher than HBE(52.06％)in the 194 HBV-DNA positive cases.There was significantly different(P＜0.01).Conclusion HBV-LP and HBV-DNA are the significant index of the degree of hepatitis B virus replication in hepatitis B positive cases,especially in determining the virus replication and prognosis of treatment in HBe Ag negative,providing the reliable laboratory data for the clinical diagnosis and treatment.

To screen potential human soluble protein tyrosine phosphatase 1B (PTP1B) inhibitors, a high-throughput screening (HTS) model in 384-well microplate with total volume of 50 microL was established. Recombinant PTP1B was cloned and expressed in E. coli. with its specific substrate 4-nitrophenyl phosphate disodium salt hexahydrate (PNPP). The HTS model was based on enzyme reaction rate with enhanced sensitivity and specificity (Z' = 0.78). A total of 24,240 samples were screened, among them 80 samples with inhibition greater than 70% were selected for further rescreening. Finally, six compounds with high inhibitory activity were identified, whose IC50 values were 21.58, 18.39, 15.37, 11.92, 37.27, and 36.61 microg x mL(-1), separately. The results indicated that the method was stable, sensitive, reproducible and also suitable for high-throughput screening.

Objective To explore the relationship between care burden and social support among family caregivers of disabled elders in Beijing urban area.Methods A cross-sectional survey based on convenience sampling was conducted among 744 family caregivers in Dongcheng District in Beijing urban area.All subjects were interviewed by the Zarit Burden Interview (ZBI),Social Support Rating Scale (SSRS) and general social and demographical material lists.And then we analyzed the correlation between social support and care burden.Results The mean scores of ZBT and SSRS were (40.3 ± 15.2) and (31.1 ± 6.9)respectively.And a negative correlation existed between the level of caregiver burden and total social support.The care burden of disability elders was negatively associated with objective support,subjective support and social support availability (P ＜ 0.05).Conclusions There is a close relationship between care burden and social support among family caregivers of disabled elders.The more objective support,subjective support and social support availability the caregivers acquire,the less burden they bear.

Objective To investigate the effect of community comprehensive intervention on health behavior and self-rated health status among family caregivers of disabled elderly.Methods One hundredand twenty family caregivers of disabled elderly were selected from community health service centers of Beijing Dongcheng District,and were given 6 month-comprehensive community intervention (intervention group);121 family caregivers of disabled elderly from another community were selected as the control group.The knowledge and skills of caregiving,health behaviors (daily exercise time,daily relaxation time) and self-rated health status were evaluated before and 6 months after intervention.Results The knowledge and skill scores in intervention group were improved by 50.781 points,the daily exercise time and daily relaxation time were prolonged by 0.491 h and 0.837 h,respectively after the intervention (all P＜0.05).There was no significant difference in self-rated health status of two groups before and after intervention (P ＞0.05).Conclusion Community comprehensive intervention improves the knowledge and skills of caregiving,and the health behaviors among family caregivers of disabled elderly,but the intervention measures does not impact the self-rated health status of family caregivers.

Objective:Mutations in the CX(connexin)26 gene (GJB2), encoding the gap\|junction protein. Connexin 26, have been shown to be the major cause of non\|syndromic recessive deafness. Among these mutations, the CX 26 cDNA (35delG) mutation accounts for the majority of this kind of deafness are European and America, but it does not present in China. Therefore, we intend to investigate the mutation hot spot of connexin 26 in China deafness populations. Mathods:The mutation of 233delC was detected by the technique of PCR\|RFLP and analyzed by directly sequencing protocols in 219 patients with kinds of deafness and 50 individuals with normal hearing. Results: The frequency of the 233delC mutation was 47/219(21.5%) in the Chinese population. No mutation was found in group with normal hearing and dominant nonsyndromic hearing loss. The mutation frequency for 233delC was 4 in 15 patients (26.7%) with genetic prelingual deafness and 10 in 50 patients(20.0%) with drug\|deafness. Conclusion: The 233delC mutaion had a high frequency in Chinese population with hearing loss, especially congenital deafness. Our data indicated that specific combinations of GJB2 mutation exist in different populations.

This study is to investigate the effect of the effective components group of Xiaoshuantongluo (XECG) on neuronal injury induced by oxygen-glucose deprivation (OGD) in primary cortical cultures isolated from SD rat cortex at day 3 and the possible mechanism. Cells were divided into control group, OGD model group and XECG group (1, 3 and 10 mg x L(-1)). The cell viability was assessed with MTT assay and the LDH release rate was measured by enzyme label kit. The cell apoptosis was analyzed using Hoechst staining. RT-PCR was applied to detect the mRNA levels of JAK2 and STAT3. Western blotting was used to detect the expressions of Bcl-2, Bax, p-JAK2 and p-STAT3 proteins. Results showed that XECG resulted in an obvious resistance to oxygen-glucose deprivation-induced cell apoptosis and decrement of cell viability, decrease the cell LDH release rate. XECG could adjust the expression of Bcl-2 and Bax proteins and increase Bcl-2/Bax ratio, up-regulate the expression of p-JAK2 and p-STAT3. In conclusion, XECG could protect against the neuronal injury cells exposed to OGD, which may be relevant to the promotion of JAK2/STAT3 signaling pathway, and impact the expression of Bax and Bcl-2.

Objective:To investigate the effect and necessity of fine operation on the improvement of the preparation outcome of paclitaxel (albumin-binding) intravenous infusion for injection.Methods:The detailed refinement of the preparation method in the specification of paclitaxel (albumin-binding) for injection was developed. The fine operation of paclitaxel (albumin-binding) for injection mainly consists of two parts: The mixing method of solvent and drug: including syringe needle length into drug vial, solvent injection speed, state of drug waiting for dissolution, and the shaking speed of the drug vial. The method of extracting the dissolved liquid in the drug vial and injecting it into a 100 ml sterile empty 0.9% sodium chloride injection bottle: including the speed of refilling the 100 ml sterile empty 0.9% sodium chloride injection bottle, and restoring the pressure balance inside and outside the infusion bottle. The effect of fine operation on the preparation of paclitaxel (albumin-binding) for injection was evaluated by comparing the production of foam and the preparation time before and after the implementation of fine operation.Results:Before and after the implementation of fine operation, the foaming rate of the foam in the drug vial decreased from 28.57% (10/35) to 12.50% (12/96), the difference was statistically significant ( χ2 value was 4.471, P=0.029); and the foaming rate of the mixed liquid from the drug vial into the 100 ml sterile empty 0.9% sodium chloride injection bottle decreased from 46.15% (6/13) to 9.09% (3/33), the difference was statistically significant ( χ2 value was 8.140, P value was 0.004); and the preparation time of single drug was reduced by 3.37 minutes after the implementation of fine operation, the difference was statistically significant ( t value was 79.744, P<0.05). Conclusion:The preparation method of fine operation of paclitaxel (albumin-binding) for injection is operable, safe and reliable. After implementation, it can effectively reduce the production of foam in the drug vial and infusion bottle, improve the stability of drug preparation, shorten the preparation time, and ensure the safe, timely and effective medication for patients.

Objective:To investigate the relationship between bone mineral density (BMD) of lumbar spine and abdominal adipose tissue in adult males.Methods:A total of 1 374 healthy male examinees in the Affiliated Hospital of Guizhou Medical University from June 2018 to September 2018 were retrospectively analyzed. The age ranged from 30 to 75 (50.9±0.30) years. Height, weight and waist circumference was measured and body mass index (BMI) was calculated. Quantitative CT (QCT) was used to measure the mean BMD value of L1 and L2. The abdominal subcutaneous fat area (SFA) and visceral fat area (VFA) at the level of L2 were measured as well. According to the BMD, the males were divided into three groups: normal group, osteopenic group and osteoporosis group. One-way ANOVA was applied to compare the age, BMI, VFA and SFA among three groups. LSD- t test was used for multiple comparisons, and Pearson correlation was used to analyze the correlation between age, BMI, VFA, SFA and lumbar BMD. Results:Totally 807 healthy males were in normal group, 451 in osteopenic group and 116 in osteoporosis group. There were significant differences in age, BMI and VFA among normal group, osteopenic group and osteoporosis group ( F=237.939, 5.788, 4.919, P<0.001, 0.003, 0.007). Age and VFA was higher in osteopenic group compared with normal group, and BMI was lower in osteopenic group compared with normal group. Age was higher in osteoporosis group compared with normal group, and the BMI was lower in osteoporosis group compared with normal group. The age was higher in osteoporosis group compared with osteopenic group. The above differences were statistically significant ( P<0.05). Although there was no statistical difference in VFA and SFA between osteopenic group and osteoporosis group, the VFA and SFA was higher in osteopenic group compared with osteoporosis group. BMD of male lumbar spine was negatively correlated with age ( r=-0.542, P<0.001), VFA( r=-0.104, P<0.001), and positively correlated with BMI ( r=0.109, P<0.001). After controlling for age and BMI, BMD was still negatively correlated with VFA ( r=-0.129, P<0.05). Conclusions:Males with abdominal obesity is more likely to manifest as low bone mass. The lumbar BMD is possibly negatively correlated with visceral adipose tissue in male.

Objective:To investigate the effects of intraoperative irrigation with hypothermic 3% sodium chloride solution on surgery effect and post-tonsillectomy pain in adults.Methods:A total of 120 adult patients with the plasma tonsillectomy from January to December 2020 in the First Affiliated Hospital of Soochow University were divided into observation group A, observation group B, observation group C and control group according to random number table method, with 30 cases in each group. During operation, observation group A used hypothermia 3% sodium chloride, observation group B used room temperature 3% sodium chloride, observation group C used hypothermia 0.9% sodium chloride, control group used room temperature 0.9% sodium chloride. The quality of surgical field quality, operation time, blood loss in operation, duration of catheter, the postoperative wound pain at 24, 48, 72 h after operation were compared among four groups.Results:The surgical field quality scores were (2.07 ± 0.87) points in the observation group A, significantly lower than in the observation group B (2.57 ± 0.73) points, observation group C (2.60 ± 0.56) points and control group (3.10 ± 0.66) points, the differences were statistically significant ( t=2.71, 2.89, 5.61, all P<0.01). Amounts of blood loss in operation were (9.13 ± 1.74), (10.03 ± 2.81), (10.50 ± 2.09) ml in the observation group A, observation group B and observation group C, significantly lower than in the control group (15.23 ± 3.64) ml, the differences were statistically significant ( t=8.85, 7.54, 6.87, all P<0.01). At 24 h after operation, the scores of Numerical Rating Scale(NRS) were (3.23 ± 0.77), (3.53 ± 0.63), (3.80 ± 0.89) points in the observation group A, observation group B and observation group C, significantly lower than in the control group (4.43 ± 1.17) points. At 48 h after operation, the scores of NRS were (2.37 ± 0.72) points in the observation group A, significantly lower than in the control group (2.93 ± 0.83) points, the differences were statistically significant ( t values were 2.77-5.25, all P<0.01).There was no significant difference in operation time, duration of catheter and wound pain 72 hours after operation among the four groups ( P>0.05). Conclusions:Intraoperative use of hypothermic 3% sodium chloride solution can reduce the amount of blood loss in operation in adult patients with plasma tonsillectomy, increase the clarity of visual field, and effectively reduce postoperative pain.

Objective:To understand the cognition and training status of basic life support among medical staff in Linfen, Shanxi Province, and to provide reference for the development of targeted training strategies and programs.Methods:A questionnaire survey was conducted among medical staff in 12 county hospitals in Linfen, Shanxi Province by convenience sampling method. The survey included the general characteristics of departments and medical staff, previous basic life support training assessment and cognitive status.Results:A total of 839 medical staff were included, 756 (90.1%) completed the survey, 183 (24.2%) were doctors and 573 (75.8%) were nurses. Most personnel lacked awareness of environmental safety, emergency response system start-up, adequate compression, airway management, and electrical defibrillation.Conclusions:The cognitive status of basic life support of medical staff in Linfen county is not optimistic. It is necessary to construct an applicable precision training course and retraining assessment system to improve the cognitive level and practical operation ability.