Adipocyte fatty acid-binding protein ( FABP4 ) is abundantly expressed in adipocytes and macrophages, and the physiologic function of this lipid chaperone is involved in the intracellular trafficking and targeting of fatty acids inside cell. Studies have shown that FABP4 plays a significant role in cholesterol metabolism. FABP4 can affect some key gene expression for cholesterol metabolism, thus regulate the metabolism, storage, and trafficking of cholesterol. As the development of FABP4 inhibitors, drugs targeting FABP4 are possible and can lead to a novel therapeutic strategy to prevent and treat obesity, type 2 diabetes, hypercholesterolemia, and atherosclerosis.

Objective To investigate the effect of desflurane pretreatment on the density of muscarinic (M)-receptors on anoxic/reoxygenated rat cardiac myocytes. Methods Myocytes were obtained from ventricle of 2-3 day SD rats and incubated for 3 days. Then they were randomly allocated to one of 5 groups: group I received no treatment and served as control ( n = 5); group Ⅱ underwent 2 h hypoxia (liquid culture medium was insufflated with a gas mixture of 1 % CO2 , 1 % O2 and 98% N2) followed by 1h reoxygenation ( n = 6) ; group Ⅲ was pre-treated with 1.5 MAC desflurane (9% ) for 20 min, followed by 10 min washout before the same duration of hypoxia/reoxygenation as in group II ( n = 6) ; group IV underwent longer duration of hypoxia (48 h) followed by 24 reoxygenation ( n = 5) ; group V was pre-treated with 1.5 MAC desflurane (9% ) for 20 min followed by 10 min washout, then underwent longer duration of hypoxia/reoxygenation as in group IV ( n = 5) . The density of M-receptors was measured by the radio-ligand binding assay (RLBA) .Results The density of M-receptors was significantly lower in group Ⅱthan that in group I ( P

Objective:To study the change of serum interleukin 6 levels in obese patients and effect of sibutramine on its levels.Methods:Totally 45 obese patients were assigned into sibutramine treated group( n =25) and placebo treated group( n =20), and 16 normal weight subjects were taken as control group.Before and after 24 week treatment,body mass,waist circumferences,serum levels of interleukin 6,glucose and insulin were determined,and the body mass index(BMI) and HOMA IR were calculated.Results:(1) Body mass,BMI and waist circumferences decreased after 24 week treatment in sibutramine and placebo group( P

For developing the determination method of chromium picolinate in health food by HPLC,extraction method and HPLC operation conditions such as columns,mobile phase had been optimized.Long term stability test of chromium picolinate had been done.Recovery of the standard spiked >93%,the RSD was 3.1,the lowest detection limit was 10.0 mg/kg,the result fits the demand of the analysis of health food.This method can be used in analysis of the content of chromium picolinate in types of tablet and capsule health food.2 years store experiment in room temperature showed that chromium picolinate was stable.

Objective To discuss the experiences in successful treatment of hyperacute traumatic intracranial hematoma with percutaneous puncture and craniotomy.Methods Pereutaneous puncture and craniotomy was performed in 12 patients with hyperacute traumatic intracranial hematomas including seven with subdural hematoma,three with epidural hematoma and two with episubdural hematoma.Before operation,there found enlargement of bilateral pupil in six patients,enlargement of unilateral pupil in six and changed breathing rhythmicity in eight.Glasgow Coma Scale(GCS)was 3 points in four patients,4 points in six and 7 points in two.Results After pereutaneous puncture,enlarged pupil was retracted at different degrees in nine patients and spontaneous breathing conditions improved in seven.After crani otomy,two patients died within 24 hours,four died after 24 hours but six patients survived.The follow-up for 0.5-2 years showed four patients with sound Glasgow Outcome Score,two at vegetative state and six deaths.Conclusion Percutaneous puncture combined with craniotomy is an effective way for hyperacute intracranial hematoma.

Objective To investigate the roles of matrix metalloproteinase-9, -2 (MMP-9, 2), and tissue inhibitors of metalloproteinase-1,2 (TIMP-1, 2) in pathogenesis of the accretio placenta. Methods The women with the placenta accrete were recruited and the placenta (23) and deciduas tissues (9) after labor were obtained, and the placenta (28) and deciduas (11) from women without the placenta accreta were obtained as control to get, too. The expressions of MMP-9, -2, TIMP-1, 2 in the placental and decidual tissues were analyzed by real-time PCR. Results mRNA expression of MMP-9 in the placenta accreta was (3.21?0.76) copies/?g total RNA, significantly higher (P

OBJECTIVETo assess dietary exposure of diethylhexyl phthalate(DEHP) among Chinese population, including general population, children aged 2-6 years, adolescent aged 7-12, young people aged 13-17, adults aged 18-59 years old as well as older people aged 60 and above and its health risk.

METHODSA total of 6 650 food samples were collected during 2011 to 2013 from 140 local markets of 14 provinces in China, which covered major foods in China. Samples were detected by GC-MS and categorized into 22 food groups. Food consumption data were taken from China National Nutrition and Health Survey performed in 2002 including 68 959 subjects. Mean concentrations of DEHP in food were combined with individual food consumption data to estimate dietary exposure, and food contributors to dietary DEHP intake were also calculated. Then, the exposure was compared with the tolerable daily intake (TDI, 50 µg·kg(-1)-d(-1)) of DEHP.

RESULTSDEHP level in foods (n = 6 650) was in the range of not detected to 43.80 mg/kg. Mean dietary intakes of DEHP in general population was 2.07 (95% CI: 0.06-4.09) µg·kg(-1)·d(-1), accounting for 4.14 percent of TDI (50 µg·kg(-1)·d(-1)). Mean dietary intake for population aged 2-6, 7-12, 13-17, 18-59 as well as elderly aged 60 and above were 3.92 (95% CI: 0.83-7.01), 3.02 (95% CI: 0.69-5.36), 2.17 (95% CI: 0.54-3.81), 1.83 (95% CI: 0.46-3.21) and 1.66 (95% CI: 0.38-2.94) µg·kg(-1)·d(-1) respectively. The 97.5 percentile intakes in the general populations was 4.73 µg·kg(-1)·d(-1), accounting for 9.46% of TDI. Main food sources of DEHP were rice (28.4% (0.59/2.07)), melon solanaceous vegetables (14.7% (0.30/2.07)) and flour (13.2% (0.27/2.07)) for the general population.

CONCLUSIONThe results suggested that dietary exposure to DEHP among Chinese population was lower than tolerable daily intake of DEHP and there were no health concerns based on generally accepted exposure limits. Rice, melon solanaceous vegetables and flour were main food contributors of DEHP dietary intake for Chinese populations.

Adolescent ; Adult ; Aged ; Asian Continental Ancestry Group ; Child ; Child, Preschool ; China ; Diet ; Diet Surveys ; Diethylhexyl Phthalate ; Flour ; Food ; Food Contamination ; Gas Chromatography-Mass Spectrometry ; Humans ; Middle Aged ; Oryza ; Risk Assessment ; Vegetables

Objective: To analyze liquid milk exposure of thiocyanate among Chinese population and preliminarily assess its health risk. Methods: A total of 2 059 raw milk samples were collected during 2013 and 2014 from 12 Chinese provinces, New Zealand and Netherlands. Farms were chosed according to the main sources of dairy companies, the distribution of farms and the yield of milk. Content of thiocyanate were detected by ion chromatography. Liquid milk consumption data were taken from Chinese beverage and alcoholic beverage consumption survey in 18 cities or counties in 9 provinces, including 16 775 subjects older than 3. A simple distribution model was used to estimate the exposure of thiocyanate from liquid milk. The tolerable daily intake (TDI) of thiocyanate was made 0.08 mg·kg^-1·d^-1. Then the exposures of different age groups were compared with TDI. Results: Finally, 1 331 samples out of 2 059 were detected to contain thiocyanate. The detection rate was 65%. The average concentration of thiocyanate was 2.11 mg/kg, with a range of 0.10-16.20 mg/kg. The general population's consumption of thiocyanate by drinking liquid milk was 0.001 mg · kg^-1 · d^-1, which was lower than TDI. The P₉₅ of general population and consumers were 0.009 mg · kg^-1 · d^-1 and 0.020 mg·kg ^-1·d^-1 respectively, which were also lower than TDI. Mean exposures of population aged 3-6, 7-12, 13-17, 18-59 as well as elderly aged 60 and above were 0.007, 0.003, 0.002, 0.001 and 0.001 mg · kg^-1·d^-1 respectively, which were all lower than TDI. Conclusion The results suggested that the health risk of thiocyanate exposure by drinking liquid milk among Chinese population was at a low level. However, milk products for children deserve more concern.

OBJECTIVETo develop a RT-PCR method for a rapid and sensitive detection of Salmonella in poultry samples.

METHODSThe RT-PCR method was established and its specificity was testified on the basis of invA gene. Serial 10-fold diluted pure suspension culture of CMCC 50041 was detected by RT-PCR, the standard curve was constructed and the amplification efficiency was calculated. Artificially contaminated experiment was done, six artificially-inoculated samples containing final concentration of Salmonella CMCC 50041 (1, 10, 10(2), 10(3), 10(4), 10(5) and 10(6) CFU per 25 g poultry samples) were prepared respectively. All the samples were incubated for 0, 4, 8, 12 and 18 h and the DNA was extracted for RT-PCR detection, meanwhile by PCR detection and the traditional method. The sensitiveness and specificity were compared among the three methods. At the same time, 16 samples of retail whole poultry were collected from markets and detected by the above three methods as well, and thereby to further compare the positive detection among the three methods.

RESULTSThe established RT-PCR method was specific for the detection of Salmonella. The sensitivity was 5.2×10(3) CFU/ml for pure Salmonella culture without enrichment. Correlation coefficients of standard curves constructed using the Ct versus log value of concentration of Salmonella showed good linearity over a 8-log dynamic range (5.2×10(3)-5.2×10(10) CFU/ml), with the R(2) at 0.999. RT-PCR detection limit for artificially contaminated samples after enriching for 12 h was 1 CFU/25 g sample, which was the same with the limit of PCR and 10 times more sensitive than the limit of traditional method. Standard curve of sample after enrichment for 12 h was established. Seven of 16 samples were detected positive by RT-PCR, which were also tested positive by PCR, while only five samples were positive by traditional method. The positive ones were quantitatively analyzed using standard curve of sample and determined the initial Salmonella numbers of CFU/25 g.

CONCLUSIONThe established RT-PCR technology was simple, rapid, sensitive and specific, which was suitable to quickly detect Salmonella in poultry samples.

Animals ; Bacterial Proteins ; Food Microbiology ; Poultry ; Real-Time Polymerase Chain Reaction ; methods ; Salmonella ; Sensitivity and Specificity

Objective To investigate the relationship between asymmetry of skin folds around the hip and developmental dysplasia of the hip(DDH).Methods A retrospective analysis was performed on 308 infants who underwent DDH screening at Xuzhou Children's Hospital Affiliated to Xuzhou Medical University from January 2017 to December 2022.According to screening reasons,they were divided into observation group(simple asymmetry of skin folds around the hip,n=116),clinical abnormality group(clinical manifestations such as hip snap,limited hip abduction,unequal length of lower limbs,n=92)and control group(simple hip screening,n=100).Clinical evaluation results and Graf hip ultrasonography results were analyzed,and the detection rate of pathological DDH in each group was compared.The positive predictive value,negative predictive value,sensitivity and specificity of pathological DDH were calculated.Results Five cases(4.31%)were detected as pathological DDH in observation group.Twenty-eight cases(30.43%)were detected as pathological DDH in clinical abnormality group.Four cases(4.00%)were detected with pathological DDH in control group.There was no significant difference in detection rate of pathological DDH between observation group and control group(χ2=0.909,P=0.592).The detection rate of pathological DDH in clinical abnormal group was significantly higher than that in control group(χ2=24.109,P<0.001).The positive predictive value,negative predictive value,sensitivity and specificity of asymmetry of skin folds around the hip for pathological DDH were 4.31%,96.00%,55.56%and 46.38%,respectively.The positive predictive value,negative predictive value,sensitivity and specificity of abnormal clinical manifestations for pathological DDH were 30.43%,96.00%,87.50%and 60.00%,respectively.Conclusion clinical signs to guide imaging screening of infants.