0.05). Conclusion IBS may be related to the changes of the serum level of PYY,but not to the changes of PYY receptor.

Objective To observe the changes of peptide YY (PYY) and its receptors in rats with ulcerative colitis (UC) by detecting both the serum level of PYY and jejunum epithelial cells in UC rats. Methods Rats were randomly divided into UC group, diarrhea-irritable bowel syndrome (D-IBS) group and control group. We measured the serum level of PYY by radioimmunoassay and made radioligand analysis of two basic parameters reflecting the characteristics of PYY receptors: dissociation constant (Kd) and maximum binding capacity (Bmax). Results The serum level of PYY was higher in UC and D-IBS groups than in normal group (P<0.001), and it was higher in UC group than in D-IBS group (P<0.001). However, the values of Kd and Bmax in UC group did not differ significantly from those in D-IBS and normal groups (P>0.05). Conclusion The serum level of PYY in UC group was significantly higher than that in normal group and D-IBS group; therefore, we assume that the change of serum PYY level may be related to not only the symptom of diarrhea but also inflammation. Kd and Bmax in neither UC group nor D-IBS group were significantly different from those in normal group, which indicates that the symptom and inflammation in UC may have nothing to do with the changes of PYY receptors.

In this study, the herpetin (HPT) lyophilized liposome was prepared, and its saftey and pharmacodynamics were evaluated. HPT lyophilized liposome was prepared by thin-film ultrasonication method. The lyoprotectant was optimized using particle size and encapsulation efficiency as indexes. Then, the influencing factors of HPT lyophilized liposome were investigated. In addition, preliminary safety and therapy efficiency of HPT lyophilized liposome to liver injury induced by CCl4 in the mice. The optimal lyoprotectant was 5% sucrose plus 5% lactose and the dispersed HPT lyophilized liposomes were spherical with the mean diameter of (107.0 ± 1.2) nm and the mean encapsulation efficiency of (99.7 ± 0.50)%. The lyophilized powder was sensitive to temperature, humidity and illumination. None of hemolysis, hemagglutination and vein irritation was observed after intravenous injection of HPT lyophilized liposomes into rabbits. HPT lyophilized liposome showed obviously therapy efficiency to liver injury induced by CCl4 in the mice. The improvements of ALT, AST and ALP were better than that in HPT free drug. The obtained HPT lyophilized liposome met the standard of CP with fine particle size and encapsulation efficiency after dispersion. The HPT lyophilized liposome showed good safety and enhanced the treatment efficacy of HPT. The HPT lyophilized liposome should be stored in low temperature, sealed condition far away from light.
Animals ; Chemistry, Pharmaceutical ; Cucurbitaceae ; chemistry ; Drug Carriers ; chemistry ; Drug Evaluation, Preclinical ; Drug Stability ; Drugs, Chinese Herbal ; adverse effects ; chemistry ; pharmacokinetics ; Liposomes ; chemistry ; Male ; Mice ; Mice, Inbred ICR ; Rabbits

Objective To explore the prevalence rates of disabilities among the ethnic minority people in China. Methods Utilizing stratified, multiphase, and cluster probability sampling design, 2 526 145 persons were investigated and screened by trained interviewers,including 297 761 persons with ethnic minority backgrounds. Respondents scoring positive for potential problems were referred to physician for further diagnosis on disability and on scale measurement.Results The overall prevalence rate of disability for both ethnic minority and Han population were 6.24% (95%CI:6.16%-6.51% ) and 6.41% (95% CI: 6.38%-6.51% ) respectively. The total aggregate age-adjusted prevalence rate of disability was 7.31% for persons with ethnic minority. The prevalence rate of disabilities in male was significantly higher than that in females (7.31% vs. 6.75% ). The ranking of prevalence rates on different type of disabilities were: physical disability 1.90% (95%CI:1.89%-1.91%), hearing disability 1.34%(95%CI: 1.33%-1.35%), multiple disability 1.14%(95%CI:1.13%-1.15% ), vision disability 0.99% (95%CI: 0.97%-1.01% ), psychiatric disability 0.38%(95%CI:0.37%-0.40% ), intellectual disability 0.38% (0.37%-0.39%) and speech disability 0.12% (0.11%-0.13% ). Cerebral Palsy, genetic diseases, tympanitis, cerebral disease and mental retardation (not including unknown items) were the major causes for disabled children with ethnicity background.Degenerated diseases, including osteoarthropathy, cerebrovascular disease, elderly-related deafness or cataract were most important causes for ethnic minority persons aged 60 or over. Injury, including traffic accident was important disabled-related factor for persons with minority ethnicity aged 15-59.The main causes and ranking of causes for ethnical minority were similar with that for Han population.Conclusion The prevalence rate of disability for ethnic minority persons was significantly higher than that for Han population in China. Prevention for different types of disability should be provided accordingly to persons with ethnic minority, in different age groups.

Objective To observe the effect of human immunoglobulin on elderly head and facial post herpetic neuralgia (PHN) and peripheral blood TNF-α.Methods One hundred and twenty-two inpatients with PHN aged ≥65 years old were selected and divided into the observation group (52 cases) and control group (70 cases) by the systematic sampling method.The control group was given the early conventional combined therapy,while on this basis the observation group was intravenously dripped by human immunoglobulin.The incidence rate of PHN and pain visual analog scale(VAS) score at 1,2,3 months after recovery discharge from hospital were recorded in the two groups.Other 20 healthy elderly people were selected as the healthy control group.The TNF-α level was determined in the two patients groups before and after treatment and in the healthy control group.Results The PHN occurrence rate at 1,2,3 months after discharge in the observation group was significantly lower than that in the control group(P＜0.05);the VAS score after treatment and at 1,2,3 months after discharge in the observation group was significantly lower than that in the control group (P＜0.05);serum TNF-α level after treatment in the observation group was significantly lower than that in the control group (P＜0.01),moreover which was close to the level in the healthy control group(P＞0.5).Conclusion Human immunoglobulin can reduce the PHN occurrence in the old people with head and facial herpes zoster and reduce the peripheral blood TNF-α level.

Objective To explore the prevalence of visual,hearing,speech,physical,intellectual and mental disabilities in China,2006.Methods The reference time of the Second National Sample Survey on Disability was zero hour,April 1,2006,and 2 526 145 individuals were investigated from 31 provinces autonomous regions or municipalities under the"Disability Classification and Standards for the Second National Sampling Survey on Disability".The classified prevalence rates of 6 types of disability was analyzed.Results (1)The overall prevalence of disabilities was 6.39%,which was 1.49 percent higher than the prevalence rate in 1987.The prevalence of physical disability was the highest(2.34%),while the speech disability was the lowest(0.53%).(2)29.49% of all the disabled persons were classified as severe who suffered grade-1 and grade-2 while 70.51% of them were moderately and mildly disabled suffering from grade-3 and grade-4.Over 65% of the speech disability and over 45% of the mental disability were identified.which were much higher than the other 4 types of disability.(3)The correlation between age,gender.residential place and each of 6 types of disability were statistically significant(P＜0.001).(4)Among all the disabling factors of speech disability and mental retardation disability,congenital factors made great contribution(22.67% and 22.41% respectively).Conclusion According to the analysis results,the characteristics of disabled persons in China were as follows:ageing population had high prevalence rate of disability;all the population mainly suffered moderate and mild disability,but the proportion of severe disability was not low;the prevalence rate was higher and the main reasons caused disability were diversification in rural area.

OBJECTIVETo understand the status and capacity of monitoring system on birth defects in China.

METHODSData regarding 27 groups of birth defects from 57 monitoring programs in World Atlas of Birth Defects (2nd Edition) published by WHO/ICBDMS/EUROCAT/HGP and descriptive analysis by their ranking and contribution were carried out.

RESULTSBoth hospital-based (Chinese Birth Defects Monitoring Network, CBDMN) and population-based (Birth Defect Surveillance System in Thirty Counties of Four Provinces, Beijing) monitoring systems showed the same characteristics as below: (1) Not enough groups were monitored, with trisomy 13/18 and congenital heart disease not reported. (2) Prevalence on those 'easily observed' group was high and cleft lip with or without cleft palate in CBDMN ranked 5 among 57 programs, with similar situation in polydactyly. (3) While prevalence rates of internal system and choromosal anomaly were low, CBDMN ranked 56 with Beijing the only non-reported city among all the 57 programs. (4) Unreasonable relationship was seen with prevalence of cleft lip was 5.76,4.02 times higher than that of cleft palate in CBDMN and in Beijing program. Which was 1.58 times of the world's means. Prevalence rates of anencephaly and total anotia/microtia rose 10.39% while spina bifida, hydrocephaly, and gastroschisis had a 4%-5% increase. The prevalence of hypospadias decreased by 4.13% and Down syndrome by 3.02%.

CONCLUSIONThe capacity of birth defects monitoring, both hospital-based and population-based, was poor in the 1990s, in China.

Capacity Building ; China ; epidemiology ; Congenital Abnormalities ; diagnosis ; epidemiology ; Data Collection ; statistics & numerical data ; Hospitals ; statistics & numerical data ; Humans ; Infant, Newborn ; Prevalence

BACKGROUND:Schwann cells are important celllines in the process of repairing peripheral nerve injury, and human amniotic homogenate supernatant is shown to secrete a variety of cytokines, which could promote the proliferation of Schwann cells.
OBJECTIVE:To investigate the effect of different concentrations of human amniotic homogenate supernatant on the proliferation of rat Schwann cell96.
METHODS:Schwann cell96 was cultured with high-glucose DMEM containing 20%fetal bovine serum, and the second generation of Schwann cell96 was applied for experiments. The cultured cells were divided into five groups according to different volume fractions of human amniotic homogenate supernatant (0%, 10%, 15%, 20%, 25%) in the medium.
RESULTS AND CONCLUSION:The total protein concentration of human amniotic homogenate supernatant was 675μg/mL, in which the concentration of epidermal growth factor, basic fibroblast growth factor and vascular endothelial growth factor were respectively (470.625±2.546), (4.121±0.026) and (0.172±0.002) ng/L. At 1-7 days, the cellproliferation rate of the 10%and 15%concentration groups was greater than that in 20%and 25%concentration groups (P<0.05);10%and 15%concentrations promoted cellproliferation, while 20%and 25%concentrations inhibited cellproliferation. There were no significant difference in the viability of Schwann cell96 between the control group and the experimental group (P>0.05). Low concentrations (10%, 15%) of human amniotic homogenate supernatant promote the proliferation of Schwann cell96, while high concentrations (20%, 25%) of human amniotic homogenate supernatant inhibit cellproliferation.

The "four-in-one" approach is based on the four-dimensional perspective of "property, position, tendency and syndrome", which helps to identify and analyze classical prescriptions in a multi-dimensional and three-dimensional way. The early pathogenesis of chronic heart failure (CHF) is deficiency of heart Qi and heart Yang and disorder in Qi transformation in triple energizer, while in the later stage of the disease, it progresses from deficiency to excess, with simultaneous occurrence of deficiency and excess syndromes. Fuling Guizhi Baizhu Gancao Decoction (Linggui Zhugan Decoction) plays its role in treating chronic heart failure by the four elements of "property, position, tendency and syndrome". Property—Linggui Zhugan Decoction is pungent, sweet, slight sweet and bitter in flavor, but warm in property. The sweet is able to tonify deficiency; the pungent is responsible for dispersing Yang, promoting Qi and draining water retention; the warm nourishes the spleen, raises Yang Qi and resolves phlegm; the bitter could excrete diuresis and dry dampness to guarantee the smooth operation of three energizer. Position-Linggui Zhugan Decoction acts on the heart, spleen and triple energizer. It can stimulate heart Yang, strengthen the spleen, resolve phlegm, and regulate the waterways to promote the Qi transformation in triple energizer. Tendency-The tendency of Linggui Zhugan Decoction is upward and downward in parallel, both internal and external. Warming up and promoting diuresis, raising Yang up and tonifying deficiency, it is conducive to the Yang Qi transformation in triple energizer. Syndrome-Linggui Zhugan Decoction is indicated for the syndrome of heart Yang deficiency and water-fluid retention, which begins with the upper abdomen swelling, Qi rushes against the chest. It is widely used in the treatment of water-vapor impulse heart disease. The disorder of Qi transformation in triple energizer is the main mechanism of recurrent CHF. Linggui Zhugan Decoction can not only warm the fire of Qi transformation in triple energizer, but also smooth the pathway of Qi transformation in triple energizer, which is compatible with the treatment of systemic fluid retention in chronic heart failure. Its pharmacological mechanisms include anti-inflammation, anti-platelet aggregation, regulation of cardiomyocyte cell membrane ion channels, protection against ischemia-reperfusion injury and modulation of vasodilation, etc. Deconstructing Linggui Zhugan Decoction with "four-in-one" approach and discussing its mechanism for treating CHF in combination with the theory of "Qi transformation in triple energizer", have great significance to rejuvenate the vitality of classical prescriptions and to apply them accurately and effectively.