Objective To explore the influence of massage on gastrointestinal motility in premature infants.Methods Fifty-eight premature infants from NICU of the affiliated hospital of Jining medical college were randomly divided into massage group(28 cases) and control group(30 cases).They were all received usual care.The infants in massage group were subjected to caresses touches twice(5-20 min/time)every day.The time of meconium and charcoal being excreted were recorded.Blood samples were collected on day 2,7 after birth.Motolin and gastrin were determined by radioimmunassays.Results The time of meconium and charcoal being excreted in massage group was(78.78?41.16) h and(21.48?9.85) h,respectively.Those in control group were(101.84?32.84) h and(34.66?13.20) h,respectively,there were significant differences between massage group and control group(P0.05).The blood concentrations of motilin and gastrin on day 7 in massage group were(402.35?40.14) ?g/L and (133.60?25.99) ?g/L, respectively,those were(315.84?37.62) ?g/L and (80.22?33.50) ?g/L in control group,respectively,there were significant differences in the blood concentrations of motilin and gastrin between 2 groups(Pa

Objective To investigate relationship between levels of follicle-sitimulating horomone receptor(FSHR) and ovarian response induced by gonadotropin hormone,and whether the FSHR expression is correlated with in vitro fertilization(IVF) outcome.Methods Granulose cells were collected from 43 women receiving IVF-embryo transplantation(IVF-ET).According to the number of oocyte,the women were divided into three groups: low response(15).The expression intensity of FSHR was measured by immunohistochemistry technique.The expression intensity of FSHR on the granular cell,the embryological and clinical outcomes were compared and analyzed. Results The expression of FSHR was significantly different in three groups with the highest in high response group(P0.05).The FSHR level was positively correlated either with the number of oocyte (r=0.719) or with the serum E2 levels(r=0.516,P0.05). Conclusion Ovarian response to gonadotropin hormone stimulation is correlated with the level of FSHR in the granulose cells.The development of follicles may be influenced by it.

Virginiamycin acetyltransferase D (VatD) plays a vital rule in streptogramins resistance by chemically inactivating streptogramin A. Therefore, it is desirable to discover novel small molecular weight inhibitors of VatD via state-of-the-art virtual screening techniques. This "cocktail" strategy by combining VatD inhibitor with streptogramins may provide new therapeutic opportunity for resistant bacteria infections. Structure-based virtual screening method (molecular docking) was applied to rank and score a chemical database containing 300 000 commercially available compounds against the VatD substrate binding site. Twenty six out of the 200 top scored compounds from the docking calculation were selected and submitted to the VatD enzymatic inhibition assay. The plasmid pRSET B/vatD was constructed and transformed into E. coli (trxB) host cells for over-expression, and VatD enzyme was purified and validated by showing acetyltransferase activity to Virginiamycin M1. Three out of these 26 tested compounds showed enzymatic inhibition on VatD with IC50 168.6, 91.0 and 55.2 micromol x L(-1), separately. Other compounds could not be dissolved in the system and/or had little effect on the enzyme (IC50 > 200 micromol x L(-1)). To our knowledge, it is first time that small molecular weight organic compounds were identified as VatD inhibitors. It is expected that the VatD inhibitors identified at present study could serve as lead compounds for the further development of the novel therapeutic agents to overcome streptogramins resistance.
Acetyltransferases ; antagonists & inhibitors ; genetics ; metabolism ; Catalysis ; drug effects ; Drug Design ; Drug Resistance, Bacterial ; Enzyme Inhibitors ; chemistry ; metabolism ; pharmacology ; Escherichia coli ; genetics ; Genetic Vectors ; Kinetics ; Molecular Structure ; Plasmids ; Streptogramin Group A ; chemistry ; metabolism ; pharmacology ; Transformation, Genetic

OBJECTIVETo investigate the absorption mechanism of genistein self-microemulsifying system in rat intestines.

METHODThe concentrations of phenol red and genistein by in situ perfusion in rats were determined by UV and HPLC, respectively. The effects of drug concentrations, pH, various intestinal segments and P-glycoprotein (P-gp) inhibitor verapamil on the absorption had been studied.

RESULTThe absorption rate constant (Ka) of genistein had no significant difference at concentrations of 0.05-0.5 mg x mL(-1) and pH of 5.4-7.8 in perfusion. It was Ka of jejunum > ileum > duodenum > colon. The absorption of genistein in jejunum had significant difference (P < 0.05) compared with other parts of intestines. Ka was increased obviously when verapamil was coper-fused with genistein (P < 0. 05).

CONCLUSIONThe absorption of genistein self-microemulsifying system is a first order process with passive diffusion mechanism related to P-gp efflux. It can be absorbed at all segments of rat intestine, and the jejunum is the best absorption segment, pH had no special effect on the absorption of genistein self-microemulsifying system in rat intestine.

ATP Binding Cassette Transporter, Sub-Family B ; antagonists & inhibitors ; Animals ; Chromatography, High Pressure Liquid ; Emulsions ; Genistein ; analysis ; metabolism ; pharmacokinetics ; Hydrogen-Ion Concentration ; Intestinal Absorption ; drug effects ; Intestines ; drug effects ; metabolism ; Male ; Organ Specificity ; Rats ; Rats, Wistar ; Temperature ; Verapamil ; pharmacology

OBJECTIVETo study the effect of folic acid cooperating with soybean isoflavone on the oxidative status of neural tube defects (NTDs) pregnant rats induced by cyclophosphamide, to observe the relationship of the two factors, folic acid and the isoflavone and to look for the best co-intervention group.

METHODSThe 100 pregnant rats of 2.5-3 months old were randomly divided into the control group, model group, co-intervention groups and solo-intervention groups. The animals were executed on the 20th day of gestation as to examining the levels of antioxidative indices (GSH, GSH-Px, Se, Mn, Fe) in blood. The incidence rates of NTDs were calculated.

RESULTSThe interaction of folic acid and isoflavone had significant effect on the indices related with antioxidation (P < 0.05). Folic acid 0.7 mg/kg cooperated with isoflavone 160 mg/kg had the best intervention effects in our study. Compared with the solo-intervention by folic acid 1.4 mg/kg and isoflavone 320 mg/kg, the effect of co-intervention (folic acid 0.7 mg/kg cooperated with isoflavone 160 mg/kg) was significantly better (P < 0.05).

CONCLUSIONFolic acid should be the main protective factor of NTDs, and isoflavone might reinforce the protective effects of folic the acid on NTDs by increasing the antioxidative ability, however, the effect is related with the ratio of the two factors.

Animals ; Cyclophosphamide ; Drug Interactions ; Female ; Folic Acid ; pharmacology ; Isoflavones ; pharmacology ; Male ; Neural Tube Defects ; chemically induced ; prevention & control ; Pregnancy ; Rats ; Rats, Wistar ; Soybeans ; chemistry

OBJECTIVETo investigate the clinical features of one pair of twin neonates with maple syrup urine disease (MSUD) in the Chinese Han population and pathogenic mutations in related genes, and to provide guidance for the early diagnosis and treatment of MSUD.

METHODSThe clinical and imaging data of the twin neonates were collected. The peripheral blood samples were collected from the twin neonates and their parents to detect the genes related to MSUD (BCKDHA, BCKDHB, DBT, and DLD). The loci with gene mutations were identified, and a bioinformatic analysis was performed.

RESULTSTwo mutations were detected in the BCKDHB gene, missense mutation c.304G>A (p.Gly102Arg) and nonsense mutation c.331C>T (p.Arg111*), and both of them were heterozygotes. The mutation c.304G>A (p.Gly102Arg) had not been reported in the world. Their father carried the missense mutation c.304G>A (p.Gly102Arg), and their mother carried the nonsense mutation c.331C>T (p.Arg111*).

CONCLUSIONSThe c.331C>T (p.Arg111*) heterozygous mutation in BCKDHB gene is the pathogenic mutation in these twin neonates and provides a genetic and molecular basis for the clinical features of children with MSUD.

3-Methyl-2-Oxobutanoate Dehydrogenase (Lipoamide) ; genetics ; Diseases in Twins ; Female ; Humans ; Infant, Newborn ; Male ; Maple Syrup Urine Disease ; genetics ; Mutation

AIM To conduct a metabolic research for a better understanding of nephrogenic edema and to assess the integral efficacy of Mori Cortex in rat model.METHODS The serum creatinine,urea nitrogen,albumin and urinary protein levels in rats were detected.UPLC-QTOF-MS was used to detect the urine metabolites changes,Principal Component Analysis (PCA) and Orthogonal Partial Least Squares Discriminant Analysis (OPLS-DA)were used to screen potential biomarkers,after whose quantification,Mev software was adopted for heat map draw-ing and hierarchical cluster analysis.RESULTS The model rats manifested significantly increased levels of serum creatinine,urea nitrogen and urinary protein,decreased albumin level,and an obviously excessive amino acid metabolism as well.The 41 identified biomarkers were mainly related to disturbances in phenylalanine,pyrimidine,arginine and proline,glycine,serine and threonine,tryptophan,cysteine and methionine metabolism,and biosynthesis of pantothenic acid and coenzyme A.A reversal trend in aforementioned levels of biochemical indexes and most biomarkers due to the intervention by Mori Cortex signaled an improvement in the metabolic disorder,renal dysfunction and edema.CONCLUSION The metabolic study demonstrates the pathological status of nephrogenic edema and assesses the effect of Mori Cortex from an overall perspective,highlighting a new approach for illustrating Chinese medical syndrome and the underlying mechanism in the management of traditional Chinese medicine.

OBJECTIVETo develop a real-time quantitative polymerase chain reaction(PCR) assay for detecting Rickettsia rickettsii.

METHODSThe primers and TaqMan-MGB probe were designed according to the ompB gene of R. rickettsii. A DNA fragment of ompB gene amplified from R. rickettsii by PCR was used as a standard template for the development of the method.

RESULTS5 copies of ompB fragments of R. rickettsii were detected. The genomic DNA of R. rickettsii was detected by the developed quantitative PCR assay. However, the genomic DNA from another rickettsial or bacterial agent was not determined. Through this developed method, the positive results were obtained from the animals and cells, artificially infected with R. rickettsii.

CONCLUSIONThe real-time quantitative PCR assay seemed to be highly sensitive and specific which might be used to rapidly detect R. rickettsia DNA in various samples and to early diagnose patients infected by R. rickettsii.

DNA Primers ; Humans ; Polymerase Chain Reaction ; methods ; Rickettsia rickettsii ; genetics ; Rocky Mountain Spotted Fever ; diagnosis ; Sensitivity and Specificity

BACKGROUND: Computed tomography (CT) and magnetic resonance imaging (MRI) data can be fused to identify the tumor boundaries. This enables surgeons to set close but tumor-free surgical margins and excise the tumor more precisely. This study aimed to report our experience in performing computer navigation-aided joint-preserving resection and custom-made endoprosthesis reconstruction to treat bone sarcoma in the diaphysis and metaphysis of the femur and tibia. METHODS: Between September 2008 and December 2015, 24 patients with bone sarcomas underwent surgical resection and joint-sparing reconstruction under image-guided computer navigation. The cohort comprised 16 males and eight females with a median age of 19.5 years (range: 12-48 years). The tumor location was the femoral diaphysis in three patients, distal femur in 19, and proximal tibia in two. The tumors were osteosarcoma (n = 15), chondrosarcoma (n = 3), Ewing sarcoma (n = 3), and other sarcomas (n = 3). We created a pre-operative plan for each patient using navigation system software and performed navigation-aided resection before reconstructing the defect with a custom-made prosthesis with extracortical plate fixation. RESULTS: Pathological examination verified that all resected specimens had appropriate surgical margins. The median distance from the tumor resection margin to the joint was 30 mm (range: 13-80 mm). The median follow-up duration was 62.5 months (range: 24-134 months). Of the 24 patients, 21 remain disease free, one is alive with disease, and two died of the disease. One patient developed local recurrence. Complications requiring additional surgical procedures occurred in six patients, including one with wound hematoma, one with delayed wound healing, one with superficial infection, one with deep infection, and two with mechanical failure of the prosthesis. The mean Musculoskeletal Tumor Society score at the final follow-up was 91% (range: 80%-100%). The 5- and 10-year implant survival rates were 91.3% and 79.9%, respectively. CONCLUSIONS Computer navigation-aided joint-preserving resection and custom-made endoprosthesis reconstruction with extracortical plate fixation is a reliable surgical treatment option for bone sarcoma in the diaphysis and metaphysis of the femur and tibia.
Adolescent ; Adult ; Child ; Computers ; Female ; Humans ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; Osteosarcoma ; Prostheses and Implants ; Sarcoma ; Young Adult

To study the genetic polymorphism of HPA 1-16 platelet antigen alleles among unrelated volunteer donors and establish a typed platelet donor panel in Handan, typing was perfomed by polymerase chain reaction using sequence-specific primers (SSP-PCR); 148 random unrelated blood donors in Handan were genotyped for each of the HPA 1-16 antigen. The gene frequencies were analyzed and the genetype frequencies were determined by direct counting, and these data were compared with HPA distribution among various population by the chi-square test. The results indicated that HPA-1a, 2a, 4a-14a, 16a genes were found among the 16 HPAs in every sample tested. Monomorphic HPA-4a, 7a-14a, 16a were found in the samples. For HPA-1, 2, 5 and 6, a/a homozygosity was predominant with frequencies of 0.9595, 0.8108, 0.9865, 0.9797, respectively, and none of HPA b/b was found in the samples. HPA-1b, 2b, 5b, 6b were rarely found among subjects. HPA-15 had the greatest heterozygosity with a gene frequency of 0.2230, 0.5270, 0.2500 for HPA15a/15a, HPA15a/15b, HPA15b/15b, respectively. HPA-3 showed the second greatest heterozygosity with a gene frequency of 0.3851, 0.5135, 0.1014 for HPA3a/3a, HPA3a/3b, HPA3b/3b, respectively. HPA genotype frequencies showed a good fit to Hardy-Weinberg equilibrium. HPA1-5 gene frequencies for Chinese people in Handan were consistent with those of Chinese people in Shijiazhuang (P > 0.05). Among the HPA1-13, -15, the frequencies of HPA-1, -2, -6 for Chinese people in Handan differed appreciably from those for Chinese people in Taiwan (P < 0.05), others were similar to those of Chinese people in Taiwan. Among the HPA 1 - 8, a similarity was noted between Chinese people in Handan and Koreans (P > 0.05), except for HPA-3. Frequencies of HPA-1, -2, -5 significantly were differed from those in African Americans, as compared with HPA 1-5 (P < 0.05). Comparison of gene frequencies from HPA-1 and -5 showed significant differences between Chinese people in Handan and people in UK (P < 0.05). It is concluded that HPA-2, -3, -5, -15 of people in Western region of China have polymorphism, incompatible frequency of HPA antigen distribution is higher, which inevitably results in the increase of immunologic exposure, therefore attention must be paid to the importance of HPA-2, -3, -5, -15 in clinical disorders. This study for the first time completely analyses HPA1-16 gene frequencies in China, and provides data for establishing a typed platelet donor panel in Handan, China.
Antigens, Human Platelet ; classification ; genetics ; Blood Donors ; statistics & numerical data ; China ; Gene Frequency ; Genotype ; Humans ; Platelet Transfusion ; Polymerase Chain Reaction ; methods ; Polymorphism, Genetic