The blood gases and acid-base disorders were analysed in 276 cases with chronic cor pulmonale at 2260m above sea level (Xining). The results demonstrated that: (1) the incidence of acid-base disorders, respiratory acidosis and the ratio of compensatory to decompensatory respiratory acidosis were low, the rate of respiratory alkolosis was high, if they were evaluated according to the formula used on plains. If normal values determined in Xining were used, the various incidences were about the same as observed on plains. (2) In diagnosing respiratory failure with blood gas analysis if the criteria commonly employed on plains was applied, the incidence of type J respiratory failure was higher, and that of type I was lower. If PaO25.33kPa were used as the criteria for respiratory failue, the incidence of type I respiratory failure became lower with type Ⅱ higher. The characteristics of acid-base disorders and diagnostic criteria of respiratory failure in patients with cor pulmonale were discussed.

OBJECTIVE:To investigate the curative effect and economics of prostaglandins drugs in the treatment of glauco-ma,and to provide reference for clinical medication. METHODS:In retrospective study,a total of 790 glaucoma patients were di-vided into latanoprost group(62 cases),travoprost group(356 cases)and bimatoprost group(372 cases)according to therapy regi-men. They were given relevant medicine. Total effective rate of 3 groups were calculated,and the cost-minimization method was used for pharmacoeconomics evaluation. RESULTS:The total effective rate of 3 groups were 87.10%,84.27%,76.08% respective-ly,without statistical significance(P>0.05). The cost of them were 208.00 yuan,225.00 yuan and 173.00 yuan,and that of bima-toprost group was the lowest. The results of sensitivity analysis was in line with that of cost-minimization analysis. CONCLU-SIONS:For glaucoma,bimatoprost is more economical than latanoprost and travoprost.

Background: Resistin level is high in patients with severe acute pancreatitis (SAP), and resistin is expected to be a new marker for evaluating the severity of acute pancreatitis. Objective: To explore the influence of integrated traditional Chinese and Western medicine therapy on serum resistin levels in SAP patients. Design, setting, participants and interventions: Twenty-eight SAP patients meeting inclusion criteria from Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University were included, and the patients were randomly divided into treatment group and placebo group. There were 13 patients in the treatment group and 15 patients in the placebo group. Patients in the treatment group were given traditional Chinese herbal medicine in addition to the conventional treatment. Patients in the placebo group were given placebo in addition to the conventional treatment. Main outcome measures: The serum resistin levels on admission, and days 1, 3, 5, and 7 after the admission were detected. Results: The serum resistin levels on admission in all the patients were higher than normal level, and there was no significant difference between the two groups (P>0.05). On days 1, 3, 5, and 7 after admission, the resistin levels in the treatment group were (3.29+/-1.66) mu g/L, (3.71+/-1.05) mu g/L, (3.08+/-1.47) mu g/L and (3.62+/-1.67) mu g/L, and in the control group (5.16+/-1.93) mu g/L, (5.07+/-1.53) mu g/L, (4.88+/-1.47) mu g/L and (5.12+/-1.48) mu g/L, respectively. The resistin levels were lower in the treatment group than in the control group (P<0.05). Conclusion: Serum resistin level in SAP patients can be decreased by integrated traditional Chinese medicine and Western medicine therapy.

Objective To investigate the relationship of serum resistin and pancreatic necrosis in the patients with severe acute pancreatitis. Methods Twenty-eight patients with SAP admitted to our hospital from March 2008 to November 2008 were divided into two groups according to the CT scan imaging: necrotic group and non-necrotic group. The enzyme-linked immunosorbent assay (ELISA) was used to test the serum resistin levels. An ROC curve was depicted to predict the pancreas necrosis. Results There were 21 patients in the non-necrotic group and 7 in the necrotic group, and there was no significant difference in terms of sex, age and baseline disease (P>0.05). The resitin levels ranged from 0.1730 ng/ml to 7.4923 ng/ml, with a mean (3.7102±1.6987) ng/ml. The area under the curve of resistin values was 0.884±0.108 (95%CI:0.672～1.097), asymptote signals 0.003, then it was calculated that P=0.003, which was>0.50. Conclusions The serum resistin may be of clinical value to predict the pancreatic necrosis.

Background and objective Multiple primary lung cancer (MPLC) represents a rare variety of pulmonary malignant tumor while mainly consist of double primary lung cancer (DPLC), but the development of diag-nostic techniques promotes the rate diagnosis of it in recent years. Here we summarize and anylasis the data of 30 cases with DPLC in expectation of improving congnitive of MPLC. Methods We retrospectly studied 30 MPLC patients who diagnosed from January 2010 to December 2015 in Affiliated Cancer Hospital of Zhengzhou University. The clini-cal characteristics, diagnosis, therapeutic methods and prognosis were analyzed. Results Among 30 patients enrolled, metachronous DPLC (27/30, 90%) is far more common than synchronous DPLC. The majority of the lesions located at right upper lobe (20/60, 33.3%), and adenocarcinoma (25/60, 41.7%) turns out to be the major pathological pat-ter. Patients with same pathological pattern of two lesions of DPLC (17/30, 56.7%) were slightly more than those with different pattern(13/30,43.3%)and adeno-adeno was the most common pattern in the former ones.Cox regression anylasis shows that lymphatic metastasis (HR=4.349, 95%CI: 1.435-13.178, P=0.009) and experience of heavy smok-ing (HR=2.996, 95%CI: 1.089-8.240, P=0.034) were associate with worse prognosis. Conclusion DPLC are mainly located at right upper lobe, and mostly adenocarcinomas. Earlier diagnosis, active therapeutic approaches and a strict smoking cessation strategy may improve the prognosis of MPLC.

OBJECTIVETo explore the common causative genes and mutation sites for hereditary non-syndromic deafness in Shanxi.

METHODSPeripheral blood samples were collected from regional schools for children with deafness. The samples were analyzed by matrix-assisted laser desorption ionization of flight mass spectrometry, and the results were verified by DNA sequencing.

RESULTSFor all samples, the 20 mutational sites of the 4 common causative genes were tested. As revealed, c.235delC of GJB2 gene has the highest mutational rate (13.67%). c.IVS7-2A>G of SLC26A (PDS) gene has a mutation rate of 17.67%, and c.1555A>G of mitochondrial 12S rRNA has a mutation rate of 2.00%. No mutations have been found with GJB3 gene. Sequencing analysis has suggested that the above results have a consistency rate of 99%.

CONCLUSIONAnalysis of mutations of the 4 common deafness-related genes can facilitate early diagnosis and treatment for the disease. Matrix-assisted laser desorption ionization time of flight mass spectrometry is a reliable method for such a task.

Adolescent ; Asian Continental Ancestry Group ; genetics ; Base Sequence ; Child ; China ; Connexin 26 ; Connexins ; genetics ; DNA Mutational Analysis ; Deafness ; genetics ; Female ; Humans ; Male ; Molecular Sequence Data ; Mutation ; RNA, Ribosomal ; genetics ; Young Adult

OBJECTIVETo identify novel common mutations among patients with non-syndromic hearing loss (NSHL).

METHODSHigh-throughput gene capture technology was used to analyze 18 patients with NSHL in whom common mutations of deafness genes including GJB2, SLC26A4, GJB3, and mtDNA were excluded. Suspected mutation was verified with Sanger sequencing.

RESULTSNext generation sequencing has identified 62 mutations in 29 genes associated with hearing loss, which included 54 missense mutations, 4 splicing mutations, 3 deletional mutations, and 1 nonsense mutation. Mutations occurring more than twice in the 18 patients were verified by Sanger sequencing. This has confirmed 15 mutations in 8 genes, including 3 missense mutations (p.C2184G, p.L2825P, p.H1888Y) which have not been reported previously. Meanwhile, p.L445W, p.D866N, and IVS919-2A>G were common causative mutations.

CONCLUSIONA number of common causative mutations, e.g., p.L445W, p.D866N, IVS919-2A>G, have been identified by high-throughput capture technology, which may facilitate the research and genetic diagnosis for hearing loss.

DNA, Mitochondrial ; genetics ; Deafness ; genetics ; Female ; Hearing Loss ; genetics ; High-Throughput Nucleotide Sequencing ; methods ; Humans ; Male ; Mutation ; genetics

Carotid web is a rare risk factor of ischemic stroke.A total of 32 (0.54％) patients with carotid web were finally diagnosed in 5 943 patients who underwent carotid computerized tomography angiography (CTA) in two hospitals.Only one patient received carotid endarterectomy that pathological findings were fibrous tissue hyperplasia of vascular wall with mucinous degeneration.Stent implantation was administrated in two cases.Among 13 asymptomatic patients,the observational follow-up period was (20.9± 12.4) months without strokes.Carotid web is a rare aberration.Asymptomatic patients with carotid web are usually silent.Large sized cohort and long-term follow-up are further needed.

Objective: To explore the current status and progress of regional school health work to provide policy reference for school health improvement. Methods: Survey data on school health work in Tianjin from 2019, 2021 and 2023 was used. School health staff allocation and expenditure of the health administrative department, CDC and education department, as well as the annual implementation of health education, prevention and control of common diseases and infectious diseases, sports activities and food nutrition in primary and secondary schools were analyzed. Statistical analysis was conducted using KruskalWallis test, Chisquare test, and Fishers exact test. Results: The number of school health staff in the health commissions and education departments from 2019, 2021 and 2023 was relatively stable. Parttime staffs were often employed by health commissions while fulltime staffs were mainly employed by education departments. The number of school health staff at CDCs increased gradually (H=12.65, P<0.01). School health expenditure of administrative departments and schools in 2021 and 2023 increased significantly compared with that in 2019 (H=22.28, 23.75, P<0.05). More than 95% of schools set up clinics or health care rooms, and about 97% of schools had school health technicians or health teachers. More than 90% of schools had health education courses over 4 hours per semester. The rate of mental health education increased by year (86.87%, 89.91%, 96.30%, Z=2.40，P<0.05). Lack of courses regarded safety emergency and risk avoidance, growth and development, and adolescent health education. The provision rate of psychological counseling services (89.00%, 97.25%, 100.00%) and psychological problem prevention and control (56.12%, 71.56%, 81.48%) also increased by year (Z=3.83, 3.96, P<0.01). The implementation rates of prevention and control of poor vision, dental caries, overweight and obesity were all higher than 80%, and the prevention and control rate of abnormal spinal curvature showed an increasing trend (38.78%, 77.06%, 72.22%, Z=4.87, P<0.01). More than 90% of schools met the standard for physical education class hours, and the proportion of schools conducting at least 30 minutes of recess physical activities every day increased year by year (65.00%, 80.73%, 85.98%, Z=3.59, P<0.01). All schools did not have shops. Conclusions School health work in Tianjin is effective and constantly developing. It is necessary to continue to increase the investment of human resources and expenditure in school health, explore the approaches of cooccurrence and prevention of common diseases, and improve the school sports and nutrition environment.

Objective:To investigate the risk factors and cumulative risk of myopia in children and adolescents, providing a basis for identifying cumulative risk factors in preventing and controlling myopia.Methods:Baseline data from the mental and physical health cohort of children and adolescents established in Inner Mongolia Autonomous Region were used. A stratified random cluster sampling method was adopted to select 138 974 students from fourth to twelfth grade as participants. Distance visual exams, refractive assessments, and questionnaires were conducted on the included students. Logistic regression analysis was used to evaluate each risk factor's impact on myopia's prevalence. The number of risk factors was summed to form a cumulative risk score, and logistic regression analysis was conducted to examine the association between the cumulative risk score and the prevalence of myopia. Additionally, the association between the cumulative risk score of myopic students and their degree of refractivity was analyzed using a generalized estimating equation.Results:The study found a high prevalence of myopia among children and adolescents at baseline (70.2%). Girls exhibited a higher prevalence (74.8%) than boys (65.6%), urban areas (74.3%) surpassed suburban ones (68.6%), and the incidence was greater in high schools (80.3%) compared to middle schools (75.3%), which, in turn, was higher than in elementary schools (57.7%) (all P<0.05). Analysis of risk factors revealed that children and adolescents experiencing improper reading and writing distances ( OR=1.10, 95% CI: 1.07-1.13), excessive homework ( OR=1.09, 95% CI: 1.06-1.12), insufficient sleep ( OR=1.10, 95% CI: 1.07-1.13), having myopic father ( OR=1.98, 95% CI: 1.91-2.05), having myopic mother ( OR=2.04, 95% CI: 1.97-2.10), or using classroom chairs not matched to their height faced ( OR=1.04, 95% CI: 1.01-1.07) increased myopia risks. Additionally, the prevalence and significant odds ratio of myopia increased with the increase in cumulative risk score, with every additional unit of cumulative risk score increasing the right eye's refractive error by -0.10 D. Conclusion:The presence of multiple factors and their comprehensive score increases the prevalence of myopia in children and adolescents.