Objective　According to Kaschin-Beck Disea se monitory standardization that had been adjusted by our country,we monitored the state of Kaschin-Beck Disease in Gansu province.Methods　So as to understand change of illness,we took methods of epidemiological investigation,clinical examination and X-ray diagnosis.Results　It is not detected in the clinical that patient suffered from more than I of KBD among 7～12 years old in Qingyang monitory netw ork.X-ray detectable rate is 3%,but 12 cases patients were showed in Zhangjiach uan.X-ray detectable rate is 22.22%.Conclusions　Illness was showed steady state and was con trolled in Qingyang region,but illness recurred clearly in Zhangjiachuan region.

Objective To undemtand the rhythm of urinary iodine level of children aged 8-10 in Chongqing city.Methods In April 2008,using the stratified random sampling method,we sampled 60 children aged 8-10 in a lodging primary school in Chongqing(20 per age group,half male and half female),the urine samples were collected in the morning and at 10:00,12:30,16:00,iodine in urine was detected by method of Ce and arsenic catalytic speetrophotometry(WS/T 107-2006).The difference of the urinary iodine level was compared by age,sex and time of day.Results The median urinary iodine of 60 children was 265.07μg/L on the overall.Irrespective of the stratification factors,excluding morning urinary iodine(366.75μg/L)and urinary iodine at 10:00(338.30 μg/L),the urinary iodine between 12:30(235.15μg/L)and 16:00(251.50μg/L)was not significant(all P>0.05),statistically significant differences(all P<0.05)were found between any two.The urinary iodine of 8-year-old group at different times of the day was significantly different(all P<0.05),except between morning urinary iodine (298.90 μg/L)and at 10:00,16:00(279.00,286.59 μg/L),between urinary iodine at 10:00 and 16:00(all P>0.05).The 9-year-old group's urinary iodine were not significantly different between morning urine(366.15μg/L)and 10:00(368.10 μg/L),and between 12:30(244.00 μg/L)and 16:00(186.30 μg/L,all P>0.05),significant differences were faund at other times of the day(all P<0.05).The 10-year-old group of urinary iodine changed very little before 12:30 (382.85,449.60,337.00 μg/L, all P > 0.05 ), followed by rapid decline to 16: 00 (269.35 μg/L), and compared with the morning urine and 10:00, there was significant difference(all P < 0.05).Regardless boys or girls, the urinary iodine at different times qf the day was significantly different (all P < 0.05),except between morning urinary iodine(337.32,309.28 μg/L) and at 10:00(316.15,288.27 μg/L), between urinary iodine at 12:30(251.18,211.45 μg/L) and 16:00(235.02,211.45 μg/L, all P > 0.05). Conclusions The change of urinary iodine level in children aged 8 - 10 was not obvious before noon, changes can be seen in the afternoon.Urinary iodine level before 10:00 is indicative.

Objective To prepare a glycerol reference material.Methods The material was prepared and characterized according to the primary standard substance technological specification(JJG 1006- 1994).Glycerol was dissolved in water containing 0.5% sodium azide and dispersed to glass ampules.The homogeneity and stability of this material were tested with an HPLC method.Glycerol concentration was determined by a titration method as specified in the Pharmacopoeia of China.Results The three time measuring result of glycerol reference material was 1.297 5?0.014 3,1.302 0?0.008 9,1.313 7? 0.007 8,respectively.Statistical analysis showed that this material was homogeneous (F=1.462,P=0.166) .It was stable for at least 4 years at 4℃.The assigned reference value was 0.103 6 g/g and the expanded uncertainty was 0.000 4 g/g.Conclusions This material meet the technical requirements of national primary standard reference material.It is approved as the Certified Reference Material (GBW 09149) by General Administration of Quality Supervision,Inspection,Quarantine of the People's Republic of China in May,2006.

OBJECTIVETo assess the relationship between fractional esterification rate of high density lipoprotein cholesterol (FER(HDL)) and coronary artery disease.

METHODSA total of 131 hospitalized patients underwent coronary angiography due to chest pain were included in the study and patients were divided into CAD group (n = 76) and non CAD group (n = 55) according to coronary angiogram. Clinical and laboratory data including biochemical laboratory, FER(HDL) and lipid subclasses were analyzed.

RESULTSThe FER(HDL) value of CAD group was significantly higher than that of the non CAD group (21.70 ± 8.73 vs. 18.65 ± 6.26, P < 0.05). There was an increased trend of FER(HDL) with numbers of diseased coronary arteries, significant difference was evidenced between non CAD group and 3-vessel group (18.65 ± 6.26 vs. 24.00 ± 9.22, P < 0.05). FER(HDL) was positively correlated with TG (r = 0.647, P < 0.001), LDLb-C(r = 0.441, P < 0.001) and negatively correlated with HDL-C (r = -0.708, P < 0.001) and HDL(2)-C (r = -0.748, P < 0.001).

CONCLUSIONOur data showed that the values of FER(HDL) were significantly increased in CAD patients and correlated with the severity of the CAD.

Adult ; Aged ; Aged, 80 and over ; Cholesterol, HDL ; metabolism ; Cholesterol, LDL ; metabolism ; Coronary Angiography ; Coronary Artery Disease ; diagnostic imaging ; metabolism ; Esterification ; Female ; Humans ; Lipoproteins, HDL ; metabolism ; Lipoproteins, LDL ; metabolism ; Male ; Middle Aged

OBJECTIVETo explore the expression of X-linked inhibitor of apoptosis protein (XIAP) in Tca8113 cell, and to investigate its relationship to the chemoresistance. METHODS; The Tca8113 cell line was cultured by IMDM and the concentration of Pingyangmycin (PYM) added to Tca8113 cell line was increased gradually and continually, which was to induce the PYM-resistance in Tca8113 cell line. The sensitivity of Tca8113 cell to PYM and expression of XIAP were measured with methyl thiazolyl tetrazolium (MTT) chromatometry and reverse transcription-polymerase chain raction (RT-PCR). The XIAP level in the cells and its chemoresistance to PYM were analyzed by linear regression.

RESULTSThe IC50 of Tca8113-1-10 group and Tca8113-10-10 group were(12.758 +/- 0.030), (18.986 +/- 0.150) microg x mL(-1) respectively. The IC50 of Tca8113-1-20 group and Tca8113-10-20 group increased to (26.302 +/- 0.072), (35.294 +/- 0.115) microg x mL(-1) respectively. There was a relation between XIAP and the drug-resistance in Tca8113 cell.

CONCLUSIONXIAP may play an important role in the chemoresistance which might serve as a new therapeutic target for oral squamous cell carcinoma.

Apoptosis ; Bleomycin ; analogs & derivatives ; Carcinoma, Squamous Cell ; Cell Line, Tumor ; Drug Resistance, Neoplasm ; Humans ; X-Linked Inhibitor of Apoptosis Protein

OBJECTIVETo investigate the repair of the severe cleft palate in patients over 10 years old.

METHODSFirst, the horizontal palate of the palatine bone was broken and the greater palatine foramen was enlarged by chisel. Then the great palatine neurovascular bundle was released. The soft palate was pushed back and lifted as described by Pro. Ruyao Song. Finally, a buccal musculomucosal flap was transferred to repair the frontal wound after pushing back the soft palate.

RESULTS13 patients aged 10 - 25 years old were treated by this method. All the flaps survived completely. Both the hard and soft palate were lengthened. Velopharyngeal incompetence was corrected very well and the pronunciation improved markedly.

CONCLUSIONSThis method can close the severe cleft palate without tension and lengthen the soft palate. It can correct velopharyngeal incompetence very well and improve pronunciation dramatically. It is especially useful for severe cleft palate in older patients.

Adolescent ; Adult ; Child ; Cleft Palate ; surgery ; Female ; Humans ; Male ; Mouth Mucosa ; transplantation ; Palate, Soft ; surgery ; Surgery, Plastic ; methods ; Surgical Flaps ; Young Adult

The aim of the present study is to observe the receptor kinetics property of long-term potentiation (LTP) of excitatory postsynaptic potential (EPSP) in spinal cord motoneurons (MNs) by descending activation. The intracellular recording techniques were conducted in spinal cord MNs of neonatal rats aged 8-14 days. The changes of EPSP induced by ipsilateral ventrolateral funiculus (iVLF) stimulation (iVLF-EPSPs) were observed, and receptor kinetics of iVLF-EPSPs were analyzed. The results showed that, the amplitude, area under curve and maximum left slope of EPSP were positively correlated with stimulus intensity (P < 0.05 or P < 0.01), while the apparent receptor kinetic parameters apparent dissociation rate constant (K(2)), apparent equilibrium dissociation constant (K(T)) of EPSP were negatively correlated with stimulus intensity (P < 0.01 or P < 0.05). The iVLF-EPSPs were persistently increased after tetanic stimulation (100 Hz, 50 pulses/train, duration 0.4-1.0 ms, 6 trains, main interval 10 s, 10-100 V) in 5 of 11 tested MNs. The amplitude of iVLF-EPSPs was potentiated to more than 120% of baseline and lasted at least 30 min, which could be referred to as iVLF-LTP. Meanwhile, the area under curve and maximum left slope of EPSPs were also increased to more than 120% of baseline. During iVLF-LTP, apparent receptor kinetics analyses of iVLF-EPSPs indicated that K(2) and KT were decreased significantly to less than 80% of the baseline within 10 min and gradually and partially recovered in 3 MNs. These results of receptor kinetics analyses of iVLF-EPSPs suggest a possible enhancement in affinity of postsynaptic receptors in the early stage of iVLF-LTP in some MNs.
Animals ; Excitatory Postsynaptic Potentials ; Kinetics ; Long-Term Potentiation ; Motor Neurons ; physiology ; Rats ; Spinal Cord ; cytology ; Synaptic Transmission

To clone mouse phage antibodies against H-Y antigen from a phage antibody library, three cycles of affinity enrichment of the mouse phage antibody library with male spleen cells and two cycles of nonspecific absorption with female spleen cells were performed. The presence of mouse Fab on the phage surface was determined by ELISA and sequence analysis. 9 of 15 strains can bind to male spleen cells with the specific activity. Recombination rate of the phage antibody library clones is 60%. Sequence analysis of the PCR products of plasmid DNA of E5 clones show VH and Vkappa had common characteristics shared by other known variable region of antibodies. The mouse phage Fab antibody could be used for identifying H-Y antigen, and for the development of sex determination of early embryos in mammals.
Animals ; Base Sequence ; Cloning, Molecular ; Enzyme-Linked Immunosorbent Assay ; Female ; H-Y Antigen ; analysis ; Immunoglobulin Fab Fragments ; genetics ; immunology ; Isoantibodies ; genetics ; immunology ; Male ; Mice ; Molecular Sequence Data ; Peptide Library

Objective To investigate iodine deficiency disorders(IDD) in Chongqing and Linzhi, and to provide scientific basis for IDD control and prevention. Methods According to the national program developed in 2007, investigation was conducted in Chengkou and Wuxi county in Chongqing municipality, and Linzhi, Bomi,Milin and Langxian county in Linzhi prefecture. Five towns were sampled in Linzhi county, and 3 in other counties.In each town, one township primary school and two village primary schools were selected to inspect thyroid by B ultrasound and palpation, and urinary iodine of children aged 8 to 10 years was tested in these schools. Meanwhile,2 villages were selected in each town for test of salt iodine level and urinary iodine of childbearing age women and search cretin cases. Results Three hundred and forty families in Chongqing and 915 families in Linzhi were investigated. The coverage of iodized salt in Chongqing was 98.82%(336/340), which was significantly higher than that in Linzhi[66.34%(607/905), x2 = 139.56, P ＜ 0.01]. Goiter rate of children in Chongqing was 9.27%(89/960) by palpation and 8.34% (61/731) by B ultrasound, while goiter rate of children in Linzhi was 7.80%(102/1308) by palpation and 5.53% (69/1248) by B ultrasound. The difference of goiter rate by palpation between Chongqing and Linzhi was not statistically significant (x2 = 1.37, P ＞ 0.05 ). But goiter rate of children by B ultrasound in Chongqing was higher than that in Linzhi (x2= 5.51, P ＜ 0.05). In Chongqing, the median urinary iodine was 319.15 μg/L, and 345.75 μg/L in Chengkou county and 281.39 μg/L in Wuxi county. In Linzhi prefecture, the median urinary iodine was 189.81 μg/L, and 207.81 μg/L in Linzhi county, 161.12 μg/L in Bomi county, 131.83 μg/L in Milin county and 334.60 μg/L in Langxian county. The median urinary iodine in childbearing women were 248.42 μg/L in Chongqing and 121.25 μg/L in Linzhi. The median urinary iodine in Chongqing both in children and women were higher than those in Linzhi. No new cretin case was found in these two areas. Conclusions Goiter rate in high risk areas of IDD in Chongqing and Linzhi has decreased to less than 10%.No new cretin case is found in these areas. It can be concluded that the work of control and prevention is effective.There is excess iodine in Chongqing. In Linzhi county and Langxian county, iodine is excess in children and deficient in women. Further investigation should be conducted to find out the reason. Population iodine is excess in Bomi and Milin counties. The concentration of salt iodine should be decreased in Chongqing. In Linzhi prefecture,adding iodine measures should be adjusted based on further investigation.

OBJECTIVETo explore the possible factors causing the increase of rabies cases and to provide references for the development of related prevention and control strategy in Hunan.

METHODSData was collected and analyzed on epidemic situation of rabies in the past ten years, and studies were carried in some counties.

RESULTSFrom 1994 to 1999, the annual cases sustained between 17 and 78. However, the number of cases has continued to increase since 2000. The annual reported cases in 2001 and 2002 were 311 and 313, and accounted for 34.8% and 30.0% of the total cases in the whole country respectively. The epidemic areas were mainly located in the south and middle parts of Hunan. Furthermore, the epidemic areas had been expanding. In 1997, human rabies cases were only reported in 7 cities but increased to 12 cities in 2004.

CONCLUSIONFactors as increasing number but low inoculating rate to dogs, and incorrect treatment on the wounds etc. might have served important roles for the recurrence of rabies. Hence, it is necessary to take comprehensive preventive measures to control and prevent the epidemics of rabies in Hunan.

Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; China ; epidemiology ; Female ; Humans ; Incidence ; Male ; Middle Aged ; Rabies ; epidemiology