BACKGROUND: Previous studies have found that nerve growth factors play an important role in the process of wound healing, but there is less research for the low-affinity nerve growth factor receptor p75 and sortilin in fibroblasts, and no reports on whether there are differences in expression of p75 and sortilin in the scar fibroblasts and normal skin fibroblasts. OBJECTIVE: To study the expression of low-affility nerve growth factor receptor p75 and sortilin in the normal human skin fibroblasts and the human keloid fibroblasts. METHODS: The keloid fibroblasts and normal hunman skin fibroblasts were cultured in vitro, and the immortalized epithelial cells HaCaT were used as the positive control. The real-time PCR was used to detect the mRNA expression of the p75 and sortilin in the keloid fibroblasts and normal human skin fibroblasts, and western blot and immunocytochemical staining were used to detect the protein expression of p75 and sortilin. RESULTS AND CONCLUSION: The real-time PCR and western blot results showed that in the protein and mRNA levels, p75 and sortilin showed positive expression in the keloid fibroblasts and normal human skin fibroblasts, and there was no significant difference in the expression of p75 between keloid fibroblasts and normal human skin fibroblasts, and the expressions of p75 and sortilin in the keloid fibroblasts and normal human skin fibroblasts were significantly lower than those in HaCaT. There was no significant difference of p75 expression between keloid fibroblasts and normal human skin fibroblasts, and the expression of sortilin in the keloid fibroblasts was significantly lower than that in the normal human skin fibroblasts (P < 0.05). Immunocytochemical staining result showed that the expression of p75 and sortilin in the keloid fibroblasts and normal human skin fibroblasts were distributed in the membrane and cytoplasm. Precursor nerve growth factor combined with high-affinity p75 receptor could promote the apoptosis of the cells with the help of sortilin, and the expression of sortilin in the keloid fibroblasts was significantly lower than that in the normal human skin fibroblasts, which may associated with the high proliferation of the keloid fibroblasts. The results provide a new target for the prevention and treatment of pathological scars.

Objective To explore the diagnosis and treatment of gastrointestinal stromal tumors(GISTs).Methods Clinical and pathological data of the 32 GISTs cases treated over the recent 5 years in our hospital were reviewed retrospectively.Results Stomach was the most frequent site for GISTs.Abdominal pain was the most common symptom.Before operation,81.3%(26/32) of the cases were misdiagnosed.All of the cases underwent surgical resection.10 recurrent GIST patients received a second resection,and 8 patients(underwant) three or more resections.Follow-up was made from six months to 5 years,and 8 patients died.Conclusions The diagnosis of GISTs is difficult and mainly depends on histopathology and(immunohistochemistry).Surgical resection is the principal treatment of GISTs.Reoperation is effective for the treatment of recurrent cases.

Objective To explore the impact of health management programs on hypertension related to their cost of the hypertensive,so as to provide evidence for related policy-making.Methods Data was from the 2011 China Non-communicable and Chronic Disease Survey Project which was developed in 161 counties (districts) and Xinjiang production and Construction Corps.Information regarding hypertensive patients were collected through a questionnaire.Two-part model was used to analyze the influence from health management scheme.Results This study included 1 1 294 participants who were 35 years old or beyond,with 4 904 (43.42％) males and 6 390 (56.58％) females.The median cost from the outpatient was 100 (30-200) Yuan,and the cost of patients under management program were significantly lower than those without (P＜0.05).Median pharmacy cost appeared as 30 (15-100) Yuan but there was no significant difference noticed between the cost from the managed or unmanaged patients (P＞0.05).Regarding the calculation on the outpatient cost,results showed that the patients under the management program were more likely to practice ‘outpatient-medical-behavior’ (OR=2.50,95％CI:2.26-2.76) with nearly three quarters of the cost from the unmanaged patients.Hypertensive patients from the urban areas were more likely to adopt ‘medical behavior’ (OR=1.31,95％CI:1.18-1.45) which was 1.69 times of the costs from the rural patients.Results of the pharmacy cost showed that the urban hypertension patients were more likely to purchase medicine (OR=1.10,95％CI:1.01-1.20) and was 1.19 times the costs of the rural patients.Conclusion Health management program on hypertension showed preliminary but promising results in reducing the out-patient cost in the treatment of hypertension,thus should be promoted and implemented.

Multistage sampling is a frequently-used method in random sampling survey in public health.Clustering or independence between observations often exists in the sampling,often called complex sample,generated by multistage sampling.Sampling error may be underestimated and the probability of type Ⅰ error may be increased if the multistage sample design was not taken into considerationin analysis.As variance (error) estimator in complex sample is often complicated,statistical software usually adopt ultimate cluster variance estimate (UCVE) to approximate the estimation,which simply assume that the sample comes from one-stage sampling.However,with increased sampling fraction of primary sampling unit,contribution from subsequent sampling stages is no more trivial,and the ultimate cluster variance estimate may,therefore,lead to invalid variance estimation.This paper summarize a method of variance estimation considering multistage sampling design.The performances are compared with UCVE and the method considering multistage sampling design by simulating random sampling under different sampling schemes using real world data.Simulation showed that as primary sampling unit (PSU) sampling fraction increased,UCVE tended to generate increasingly biased estimation,whereas accurate estimates were obtained by using the method considering multistage sampling design.

Objective: The objective of this study is to analyze the trend of burden of ischemic heart disease (IHD) in China between 1990 and 2015. Methods: Data were collected from the results of 2015 Global Burden of Disease Study. We arranged and analyzed the mortality and disability-adjusted life year (DALY) for IHD by sexes, ages and provinces (excluding Taiwan, China) in China between 1990 and 2015. The age-standardized rates were determined using the average world population age structure in the period of 2010-2035 as a reference, and the changes of the related indicators were calculated. Results: In 2015, IHD caused 1 461 thousand deaths, and its age-standardized death rate was 114.8 per 100 000. Number of DALYs from IHD were 25 765 thousand in 2015, with the age-standardized DALY rate at 1 760.2 per 100 000. From 1990 to 2015, the age-standardized death rate for IHD in China increased by 13.3% but age-standardized DALY rate decreased by 3.9%. Number of IHD DALYs among male (16 664 thousand) was higher than it among female (9 101 thousand) in China in 2015, and 83.5% of total DALYs from IHD occurred among people aged over 50 years old. Province with highest age-standardized death rate was Heilongjiang, with rate at 187.4 per 100 000 in 2015. Qinghai (54.0%) increased most and Macao (-52.3%) decreased most from 1990 to 2015. Province with highest age-standardized DALY rate was Xinjiang, with rate at 3 040.8 per 100 000 in 2015. Qinghai (33.2%) increased most while Macao (-59.0%) decreased most between 1990 and 2015. Conclusion Burden of IHD in China increased remarkably from 1990 to 2015, especially among males and people aged over 50 years old. The differences among provinces were obvious.

Objective: Cognition impairments are considered as a fundamental characteristic of severe mental disorders (SMD). Recent studies suggest that hyperprolactinemia may exert a detrimental influence on cognitive performance in patients with SMD. The objective of this study was to investigate the correlation between serum prolactin levels and cognitive function in female individuals diagnosed with SMD. Methods: We conducted a study on 294 patients with SMD and 195 healthy controls, aged between 14 to 55 years old. Cognitive function was assessed using the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), while prolactin levels were measured in serum. Descriptive analysis and comparative analysis were performed to compare cognitive function and prolactin levels between groups, and linear regression models were used to explore the relationship between prolactin and cognitive function. Results: Compared to the healthy control, individuals with SMD exhibited significantly higher levels of prolactin, while scoring lower on RBANS total and every index scores. Furthermore, a negative association between prolactin levels and cognitive function (RBANS total index score, attention, and delayed memory) was observed in SMD patients. Importantly, this inverse correlation between prolactin and cognition function (RBANS total index score, total scale score, and attention) persisted in patients who were not taking medications that could potentially influence serum prolactin levels. Conclusion Our study reveals a significant correlation between elevated prolactin levels and cognitive impairment in female patients with SMD, underscoring the importance of monitoring prolactin levels in order to prevent cognitive deterioration among female SMD patients.

Objective: Cognition impairments are considered as a fundamental characteristic of severe mental disorders (SMD). Recent studies suggest that hyperprolactinemia may exert a detrimental influence on cognitive performance in patients with SMD. The objective of this study was to investigate the correlation between serum prolactin levels and cognitive function in female individuals diagnosed with SMD. Methods: We conducted a study on 294 patients with SMD and 195 healthy controls, aged between 14 to 55 years old. Cognitive function was assessed using the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), while prolactin levels were measured in serum. Descriptive analysis and comparative analysis were performed to compare cognitive function and prolactin levels between groups, and linear regression models were used to explore the relationship between prolactin and cognitive function. Results: Compared to the healthy control, individuals with SMD exhibited significantly higher levels of prolactin, while scoring lower on RBANS total and every index scores. Furthermore, a negative association between prolactin levels and cognitive function (RBANS total index score, attention, and delayed memory) was observed in SMD patients. Importantly, this inverse correlation between prolactin and cognition function (RBANS total index score, total scale score, and attention) persisted in patients who were not taking medications that could potentially influence serum prolactin levels. Conclusion Our study reveals a significant correlation between elevated prolactin levels and cognitive impairment in female patients with SMD, underscoring the importance of monitoring prolactin levels in order to prevent cognitive deterioration among female SMD patients.

Objective: Cognition impairments are considered as a fundamental characteristic of severe mental disorders (SMD). Recent studies suggest that hyperprolactinemia may exert a detrimental influence on cognitive performance in patients with SMD. The objective of this study was to investigate the correlation between serum prolactin levels and cognitive function in female individuals diagnosed with SMD. Methods: We conducted a study on 294 patients with SMD and 195 healthy controls, aged between 14 to 55 years old. Cognitive function was assessed using the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), while prolactin levels were measured in serum. Descriptive analysis and comparative analysis were performed to compare cognitive function and prolactin levels between groups, and linear regression models were used to explore the relationship between prolactin and cognitive function. Results: Compared to the healthy control, individuals with SMD exhibited significantly higher levels of prolactin, while scoring lower on RBANS total and every index scores. Furthermore, a negative association between prolactin levels and cognitive function (RBANS total index score, attention, and delayed memory) was observed in SMD patients. Importantly, this inverse correlation between prolactin and cognition function (RBANS total index score, total scale score, and attention) persisted in patients who were not taking medications that could potentially influence serum prolactin levels. Conclusion Our study reveals a significant correlation between elevated prolactin levels and cognitive impairment in female patients with SMD, underscoring the importance of monitoring prolactin levels in order to prevent cognitive deterioration among female SMD patients.

Objective: Cognition impairments are considered as a fundamental characteristic of severe mental disorders (SMD). Recent studies suggest that hyperprolactinemia may exert a detrimental influence on cognitive performance in patients with SMD. The objective of this study was to investigate the correlation between serum prolactin levels and cognitive function in female individuals diagnosed with SMD. Methods: We conducted a study on 294 patients with SMD and 195 healthy controls, aged between 14 to 55 years old. Cognitive function was assessed using the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), while prolactin levels were measured in serum. Descriptive analysis and comparative analysis were performed to compare cognitive function and prolactin levels between groups, and linear regression models were used to explore the relationship between prolactin and cognitive function. Results: Compared to the healthy control, individuals with SMD exhibited significantly higher levels of prolactin, while scoring lower on RBANS total and every index scores. Furthermore, a negative association between prolactin levels and cognitive function (RBANS total index score, attention, and delayed memory) was observed in SMD patients. Importantly, this inverse correlation between prolactin and cognition function (RBANS total index score, total scale score, and attention) persisted in patients who were not taking medications that could potentially influence serum prolactin levels. Conclusion Our study reveals a significant correlation between elevated prolactin levels and cognitive impairment in female patients with SMD, underscoring the importance of monitoring prolactin levels in order to prevent cognitive deterioration among female SMD patients.

OBJECTIVETo analyze the prevalence states of hypertension and prehypertension and to explore relevant influencing factors among adult residents in Shandong province.

METHODS15 600 residents aged between 18 and 69 from 20 counties in Shandong province were selected by multiple stratified and clustered sampling method from July to September, in 2011, to acquire related information by questionnaire survey and physical measurement. The prevalence of hypertension and prehypertension was estimated by special statistic method used to deal with complex sampling data, and the relevant influencing factors were also analyzed.

RESULTSA total of 15 350 subjects were actually completed the survey, with age at (41.4 ± 14.1) years old. The average systolic blood pressure and diastolic blood pressure were 121.1(95%CI: 119.7-122.4) and 78.8(95%CI: 77.8-79.9) mmHg (1 mmHg = 0.133 kPa) respectively. And also 3776 hypertension patients and 5721 subjects with prehypertension were detected, and the weighting prevalence of hypertension and prehypertension were 23.4% (95%CI: 20.9%-26.0%) and 37.1% (95%CI: 34.7%-39.5%) with adjustive prevalence at 20.7% and 36.5% respectively. The multiple SURVEYLOGISTIC analysis showed that age above 40 years old (OR = 3.24, 95%CI: 2.56-4.10), overweight(OR = 2.22, 95%CI: 1.70-2.89) and obesity(OR = 5.84, 95%CI: 3.54-9.66), smoking history(OR = 1.82, 95%CI: 1.03-3.23), constantly drinking (OR = 1.71, 95%CI: 1.08-2.70), diabetes (OR = 1.99, 95%CI: 1.29-3.07), abnormal TC(OR = 1.64, 95%CI: 1.24-2.17), abnormal TG(OR = 1.75, 95%CI: 1.24-2.48) and high 24 h urine Na/K ratio (OR = 1.05, 95%CI: 1.02-1.08) were risk factors of hypertension, while education equal to or above junior middle school (OR = 0.68, 95%CI: 0.52-0.89) was protective factor of hypertension; age above 40 years old (OR = 1.49, 95%CI: 1.15-1.91), overweight(OR = 1.76, 95%CI: 1.25-2.48) and obesity (OR = 3.50, 95%CI: 2.05-5.97), abnormal TC (OR = 1.54, 95%CI: 1.10-2.14), abnormal TG (OR = 1.79, 95%CI:1.25-2.56) and high 24 h urine Na/K ratio (OR = 1.02, 95%CI: 1.01-1.04) were risk factors of prehypertension, while female (OR = 0.41, 95%CI: 0.31-0.56) and education level equal to or above junior middle school (OR = 0.67, 95%CI: 0.52-0.87) were protective factors.

CONCLUSIONThe hypertension, especially prehypertension tends to be at high prevalence states currently, which may be affected by many factors.

Adolescent ; Adult ; Aged ; China ; epidemiology ; Cross-Sectional Studies ; Female ; Humans ; Hypertension ; epidemiology ; Male ; Middle Aged ; Prehypertension ; epidemiology ; Risk Factors ; Young Adult