Animals ; Humans ; MicroRNAs ; Pneumonia ; genetics ; Pulmonary Fibrosis ; genetics

Female ; Humans ; Infant, Newborn ; Maple Syrup Urine Disease ; diagnosis ; therapy

Animals ; Aorta ; pathology ; Apolipoproteins E ; deficiency ; Atherosclerosis ; metabolism ; pathology ; Female ; Glycosides ; isolation & purification ; pharmacology ; Intercellular Adhesion Molecule-1 ; metabolism ; Mice ; Plants, Medicinal ; chemistry ; Polygonum ; chemistry ; Vascular Cell Adhesion Molecule-1 ; metabolism

OBJECTIVETo evaluate the effect and profitability of using the quantitative trait loci (QTL)-linked direct marker (DR marker) in gene-assisted selection (GAS).

METHODSThree populations (100, 200, or 300 sows plus 10 boars within each group) with segregating QTL were simulated stochastically. Five economic traits were investigated, including number of born alive (NBA), average daily gain to 100 kg body weight (ADG), feed conversion ratio (FCR), back fat at 100 kg body weight (BF) and intramuscular fat (IMF). Selection was based on the estimated breeding value (EBV) of each trait. The starting frequencies of the QTL's favorable allele were 0.1, 0.3 and 0.5, respectively. The economic return was calculated by gene flow method.

RESULTSThe selection efficiency was higher than 100% when DR markers were used in GAS for 5 traits. The selection efficiency for NBA was the highest, and the lowest was for ADG whose QTL had the lowest variance. The mixed model applied DR markers and obtained higher extra genetic gain and extra economic returns. We also found that the lower the frequency of the favorable allele of the QTL, the higher the extra return obtained.

CONCLUSIONGAS is an effective selection scheme to increase the genetic gain and the economic returns in pig breeding.

Animals ; Breeding ; economics ; methods ; Genetic Markers ; Models, Genetic ; Quantitative Trait Loci ; Selection, Genetic ; Swine

Axons ; chemistry ; Myelin Sheath ; chemistry ; Staining and Labeling ; methods

Objective Blood pressure variability (BPV) is an independent risk factor for the death of patients with maintenance hemodialysis (MHD).There is no study on the influencing factors of BPV at home in HD patients in China.The article aimed to investigate MHD patients'BPV at home and related influencing factors in order to provide theoretical basis for reducing home BPV (HBPV) clinically. Methods We chose 103 patients who were treated with MHD in the Renal Medicine Room of Nephrology Department in three upper first -class hospitals including Jiangsu Provincial People 's Hospital, the First Affiliated Hospital of Suzhou University and the Affiliated Hospi -tal of Jiangsu University from March 2017 to October 2017.We col-lected their 7 days'blood pressure monitoring at home and blood pressure before dialysis, average value and standard deviation in sys -tolic blood pressure monitoring at home, and took the coefficient of variation of systolic blood pressure as the expression of HBPV .The patients were divided into high BPV group (BPV≥5.8％) and low BPV group (BPV<5.8％) according to the average BPV.At the same time, we recorded indexes such as sex , age, dialysis age, primary disease, BMI, inter-dialytic weight gain (IDWG), left ven-tricular mass index(LVMI) and analyzed relative influencing factors by multiple linear regression . Results The age, IDWG and LV-MI were positive independent influencing factors of HBPV (R 2 =0.467,F=10.945,P<0.001).According to standardized regression co-efficient, the contribution of each variable to HBPV was as follows : PIBWG >Age>LVMI. Conclusion In clinical nursing, we should actively control the IDWG of patients , encourage patients to monitor their blood pressure at home , and increase their awareness of the importance of home BPV.Meanwhile, HBPV is an important index for predicting left ventricular hypertrophy and can be used as an objective tool to improve patients 'self-management ability.

Objective To explore the molecular basis of familial hypercholesteraemia(FH)by analyzing the phenotype and genotype relationship through identify the low density liporotein receptor(LDL-r)gene mutation in a FH kindred.Methods A male patient of 15 years old was selected to examine the electrocardiogram,lipid.Color Doppler was used to examine heart and great vessels.The promoter region and the 18 exons of the LDL-r gene were screened by touch-down polymerase chain reaction(PCR)and DNA sequencing.Results The caro-tid intima-media thickness(IMT)was increased to 0.23 cm,while coronary flow velocity reserve(CFVR)was decreased to 1.57,and mode-rate mitral regurgitation was found in the proband.The genetic alteration G→A change at 1 448 of exon 10 causing premature stop codon(W462X).The same heterozygous nonsense mutation was also found in his father.The mutation had been reported in other Chinese patients.In vitro experiments showed that W462X mutation leads to low LDL binding and internalization ability.Conclusions The homozygous mutation(W462X)in exon 10 of the LDL-r gene were identified in the clinically heterozygous FH proband.The W462X mutation is the underl-ying cause of hypercholesterolaemia and clinical AS manifestations.W462X is recurrent mutation among Chinese FH patients.It might be a hot spot mutation in LDL-r in Chinese FH.J Appl Clin Pediatr,2009,24(1):18-20

OBJECTIVETo study the application value of asthma predictive index (API)-based group therapy in wheezing children under 5 years of age.

METHODSA total of 239 wheezing children under 5 years of age were divided into API-positive (n=126) and API-negative groups (n=113). Each group was randomly assigned to inhaled corticosteroids (ICS) subgroup and montelukast sodium (leukotriene receptor antagonist, LTRA) subgroup. The ICS and LTRA subgroups received the same drug therapy at the same dosage within the first four weeks of treatment. In the stable period of disease, the ICS subgroup only received aerosol inhalation of budesonide suspension, while the LTRA group was orally given montelukast sodium only. Asthma symptom scores were assessed and recorded at different time points.

RESULTSIn the first four weeks of treatment, ICS and LTRA were effective both in the API-positive and API-negative groups; the two groups showed significant improvements in asthma symptom scores, and the asthma symptom score showed no significant difference between the ICS and LTRA subgroups of each group. After 24 weeks of treatment, the two therapies were still effective; in the API-positive group, the LTRA subgroup had a better treatment outcome than the ICS subgroup, but there was no significant difference in treatment outcome between the LTRA and ICS subgroups of the API-negative group.

CONCLUSIONSFor wheezing children under 5 years of age, therapeutic strategies can be chosen based on API in the stable period of disease, so as to better control wheezing.

Administration, Inhalation ; Adrenal Cortex Hormones ; administration & dosage ; Asthma ; diagnosis ; drug therapy ; Child, Preschool ; Female ; Humans ; Infant ; Infant, Newborn ; Leukotriene Antagonists ; therapeutic use ; Male ; Psychotherapy, Group ; Respiratory Sounds ; diagnosis ; drug effects

OBJECTIVETo investigate the distribution characteristics and influencing factors of mental workload of teachers in primary schools.

METHODSNational Aeronautics and Space Administration-Task Load Index (NASA-TLX) was used to assess the mental workload levels for 397 teachers of primary schools in a city.

RESULTSThe mental workload (64.34+10.56) of female teachers was significantly higher than that (61.73+ 9.77) of male teachers (P<0.05). The mental workload (65.66+10.42) of "-35" years old group was the highest. When age of teachers was younger than 35 years old, there was a positive correlation between the mental workload and age (r=0.146, P<0.05). When age of teachers was older than 35 years old, there was a negative correlation between the mental workload and age (r=-0.190, P<0.05). The teachers with higher education level felt higher mental workload (unstandardized coefficients B=1.524, standardized coefficients /=0.111, P<0.05). There was a positive correlation between the mental workload and working hours per day (unstandardized coefficients B =4.659, standardized coefficients/3 =0.223, P<0.001).

CONCLUSIONMental workload of the teachers in primary schools is closely related to age, educational level and work hours per day. Work hours per day is an important risk factor for mental workload. Reducing work hours per day (8 hours) is an effective measure of alleviating the mental workload of teachers in primary schools.

Adolescent ; Adult ; Aged ; Faculty ; Female ; Humans ; Male ; Middle Aged ; Schools ; Stress, Psychological ; epidemiology ; Surveys and Questionnaires ; Workload ; psychology ; Young Adult

OBJECTIVETo investigate if the duration from poisoning to treatment (no treatment period) is related to the prognosis of patients with severe acute organophosphorus pesticide poisoning (SAOPP).

METHODSOne hundred and seventy-four patients with the pre-hospital systematic treatment served as the treatment group while 160 patients going to the hospital by themselves without treatment or rejecting gastrolavage served as the control group. Patients in both groups were treated by gastrolavage, pralidoxime chloride, atropine and other expectant treatment. The duration of no treatment period, death, and severe complication were observed. The time of disappearance of symptoms, the recovery time of acetyl cholinesterase (AChE), atropinization time, atropine dosage, pralidoxime chloride dosage, naloxone dosage, hospitalization days and other targets were also observed.

RESULTSThe duration of no treatment period in treatment group [(1.2 +/- 0.3) h] was significantly shorter than that in control group [(2.8 +/- 0.5) h, (P < 0.01)]. The mortality rate in treatment group was 6.32% while that in control group 22.5% (P < 0.01). The incidence of respiratory failure, heart injury, brain injury, atropine poisoning, intermediate syndrome, liver injury in treatment group (12.64%, 5.75%, 8.62%, 1.72%, 4.60%, 5.17% respectively) were lower than those in control group (25.63%, 13.75%, 17.50%, 6.25%, 7.50%, 9.38% respectively, P < 0.05 or P < 0.01). The time of symptoms disappearance, the recovery time of AChE, atropinization time, atropine dosage, pralidoxime chloride dosage, naloxone dosage, hospitalization days in treatment group were significantly superior to those in control group (P < 0.05 or P < 0.01).

CONCLUSIONThe pre-hospital systematic treatment can improve the prognosis of the patients with SAOPP, which is worth popularizing and using.

Adult ; Case-Control Studies ; Emergency Medical Services ; Female ; Humans ; Insecticides ; poisoning ; Male ; Organophosphate Poisoning ; Pesticides ; poisoning ; Prognosis