Objective To investigate the significances of karyotyping analysis on umbilical cord vein blood lymphocytes in the diagnosis of abnormal karyotypes in middle to late period of pregnant fetus.Methods A volume (0.5 ～ 1 ml) of umbilical cord vein blood was extracted from pregnant women in third trimester pregnancy with prenatal detection indications,and collected in sterilized anticoagulant tube.Lymphocytes were cultured and collected for karyotyping analysis after fixed and dropped on slides.Data were analyzed statistically.Results Lymphocytes were cultured successfully in 1 211 cases out of total 1 213 cases collected.Totally 142 abnormal karyotypes were found,which includes 81 cases (detection rate 6.68 ％) of non-heteromorphic abnormal chromosomes and 61 cases (detection rate 5.03％) of heteromorphic chromosomes.Among these abnormal karyotypes,50 cases (accounting for 35.21％ in total abnormal cases) of aneuploidy include 4 cases of chimerical karyotype.Structural abnormalities were found in 31 cases (accounting for 21.83％ in total abnormal cases) samples including 11 cases of translocations,17 cases of inversion and 3 cases of deletion.Conclusions Based on our findings,karyotyping analysis on umbilical cord vein blood lymphocytes could be an effective method for detect abnormal karyotypes in middle to late period of pregnant fetus and played an important role in prenatal diagnosis.

OBJECTIVETo explore the surgical method and its clinical effects of minimally invasive osteosynthesis on the treatment of complex ankle fractures.

METHODSFrom January 2007 to December 2011, 53 patients with complex ankle fractures were treated with minimally invasive osteosynthesis. There were 31 males and 22 females, with an average age of 38.2 years old (ranged, 18 to 65). According to the system of Lauge-Hansen, 32 fractures were supination external rotation injury (grade WV), 13 fractures were pronation external rotation (grade III or IV), 5 fractures were pronation abduction (grade III); and 3 fractures can not be classified due to serious comminution fracture of fibula. According to the system of Denis-Weber, there were 4 cases with type A, 34 cases with type B and 15 cases with type C. Seven cases were open fractures. The duration from injuries to operation ranged from 2 hours to 14 days with an average of 5 days. The sequence of reduction and fixation of ankle fractures was firstly posterior malleolus, then medial malleolus and lateral malleolus, and inferior tibiofibular syndesmosis lastly. The fractures of posterior malleolus were reduced and fixed through anterior ankle approaches; the fractures of medial and lateral malleolus were percutaneously fixed with bolts or blade plate or tensile force band; and inferior tibiofibular syndesmosis were firmly fixed if necessary. Baird-Jackson scoring system was used to evaluate clinical effects.

RESULTSForty-eight patients were followed up from 10 to 36 months with an average of 13 months. The fractures got healing with an average time of 12 weeks (ranged, 10 to 18). According to the Baird-Jackson scoring system, the mean score of ankle function was 94.7 +/- 4.2, and 28 cases obtained excellent results, 15 good, 3 fair and 2 poor. One case experienced superficial infections and was cured by changing dressings, 2 cases experienced fixed syndesmosis screw breakage.

CONCLUSIONThe surgical method of minimally invasive osteosynthesis can ensure the anatomical join restoration, protect the blood supply of fracture end, rebuild the function of ankle joint, obtain satisfactory clinical results in treating complex ankle fractures.

Adolescent ; Adult ; Aged ; Ankle Fractures ; Ankle Joint ; physiopathology ; surgery ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; methods

A batch laboratory test was conducted to examine the effect of biological reductive dechlorination of 2,4-Dichlorophenol(2,4-DCP) by the addition of zero-valent iron(Fe0) in the anaerobic system, through inoculating the anaerobic mixed microorganism acclimated for two months. Meanwhile, several factors that affected "Fe0+ microbe" system were also being discussed. The results showed that, "Fe0+ microbe" system accelerated the biological dechlorination of 2,4-DCP effectively compared to the individual use. The opti-mum quantity of added Fe0 and inoculation was 0.5 g/L and 376.2 mgVSS/L in the combined system respec-tively. It showed the most effective transformation efficiency for 2,4-DCP when initial pH=8.0, whereas it become weaker when initial pH are keeping in acid condition. There existed a proportion between quantity of added Fe0 and inoculation. It enhanced degradable effect of 2,4-dichlorophenol when increased the quan-tity of inoculation at suitable ranges, which generated more enzyme or enzymatic series degraded pollutant.

Objective To understand the variation in response of Oncomelania hupensis to niclosamide. Methods Snails were collected from 37 sampling areas distributed in 10 provinces (municipalities) using random environmental sampling methods in accordance with the different types and categories of snail habitats. In laboratory the snails were immersed in solutions of niclosamide for 24 and 48 hours at 25℃. Results 1.0 mg/L niclosamide showed 100% killing effect on snails in 24 hours. The LC 50 concentrations for snails immersed for 24 hours ranged from 0.0320 to 0.1689 mg/L with a mean value of 0.0920 mg/L. 0.5 mg/L niclosamide showed 100% killing effect on snails in 48 hours. The LC 50 values for snails immersed for 48 hours ranged between 0.0299 and 0.1114 mg/L with a mean of 0.0627 mg/L. There is a significant difference in snail sensitivity to niclosamide between sampling areas. Conclusion The sensitivity to niclosamide varied in snails from different sampling fields, but the chemical in a concentration of 1.0 mg/L showed 100% effect of killing snails, which is consistent to the manual of schistosomiasis control.

OBJECTIVETo study the death mode of human hepatocellular carcinoma Hep-3B cells and human lung adenocarcinoma A549 cells induced by bluetongue virus strain HbC3 (BTV-HbC3) and the mechanism of its action.

METHODSBTV-HbC3 was used to infect the tumor cells, and the cytopathic effects (CPE) was observed. TUNEL staining was used to detect the apoptosis of tumor cells induced by BTV-HbC3. The changes of endoplasmic reticulum and nuclei treated with BTV-HbC3 were further examined by laser scanning confocal microscopy. The activities of caspase-3/7, caspase-8 and caspase-9 were determined by fluorescence analysis.

RESULTSHep-3B cells were sensitive to BTV-HbC3. Lots of early apoptotic cells were found by TUNEL staining. The laser scanning confocal microscopic examination showed characteristics of apoptosis, such as pyknotic nuclei, margination of nuclear chromatin and vacuolization of endoplasmic reticulumin in Hep-3B cells exposed to BTV-HbC3. The activity of caspase-3/7 was increased, but the activity changes of caspase-8 and caspase-9 were not found. A549 cells were sensitive to BTV-HbC3 too. But no apoptotic cells were observed by TUNEL staining. The results of laser scanning confocal microscopy showed marked vacuolization of endoplasmic reticulum, but chromatin margination was not found after A549 cells was exposed to BTV-HbC3. The activity of caspase-3/7 and caspase-9 was increased, but the activity of caspase-8 was not changed.

CONCLUSIONBTV-HbC3 induces apoptosis of Hep-3B tumor cells mainly through endoplasmic reticulum signal transduction pathway, and the features of cell death in A549 cells could be described as paraptosis.

Adenocarcinoma ; metabolism ; pathology ; virology ; Apoptosis ; Bluetongue virus ; pathogenicity ; physiology ; Carcinoma, Hepatocellular ; metabolism ; pathology ; virology ; Caspase 3 ; metabolism ; Caspase 8 ; metabolism ; Caspase 9 ; metabolism ; Cell Line, Tumor ; Cell Nucleus ; pathology ; Endoplasmic Reticulum ; pathology ; Humans ; Liver Neoplasms ; metabolism ; pathology ; virology ; Lung Neoplasms ; metabolism ; pathology ; virology ; Oncolytic Viruses ; pathogenicity ; physiology ; Signal Transduction

To observe the serum samples and the anti-inflammatory effect of Tripterygium wilfordii in treating RA by using the pharmacokinetic-pharmacodynamic model, make a correlation analysis on concentration-time and effect-time curves, and explore RORγt, IL-17, STAT3, IL-6 mRNA transcriptional levels in rats by PCR. Methotrexate, tripterine and high-dose T. wilfordii could down-regulate RORγt, IL-17, STAT3, IL-6 mRNA transcriptional levels in AA rat lymph nodes. The study on PK-PD model showed correlations between inflammatory factors and blood concentration of T. wilfordii. T. wilfordii and its main active constituent tripterine could show the inflammatory effect and treat RA by inhibiting IL-17 cytokine.
Animals ; Arthritis, Rheumatoid ; drug therapy ; immunology ; Biomarkers ; Female ; Interleukin-17 ; antagonists & inhibitors ; genetics ; Interleukin-6 ; genetics ; Phytotherapy ; Rats ; Rats, Sprague-Dawley ; Tripterygium ; Triterpenes ; pharmacokinetics ; pharmacology

Objective:To discuss the topical action characteristics of the biological transmission of moxibustion heat via temperature collection and numerical modeling.Methods:Temperature of moxibustion was measured at multiple points at a distance of 3 cm to obtain the moxibustion temperature field nephograms by the high-accuracy temperature measure array.Finite element analysis was used to imitate the three-dimensional dynamic distribution of temperature in acupoint tissues.Results:Through numerical analysis,the one-dimensional,two-dimensional and three-dimensional distributions of temperature in human acupoint tissues at 5 min of moxibustion were established.The result showed that moxibustion heat mainly transmitted from the surface of the tissue to the internal,and the influence of moxibustion heat decreased with the depth of the tissue.The analysis of the nephograms of acupoint tissue temperature at 5,10,15 and 20 min of moxibustion showed that with the increase of the moxibustion time,the temperature in acupoint tissues constantly rose,and the transmission depth of moxibustion heat also further expanded inside acupoint.Conclusion:By establishing the three-dimensional dynamic model of heat transmission inside acupoint tissues with the biological parameters of human tissues and the temperature values obtained,this study used finite element analysis software ANSYS 14.0 and discovered the rules in the transmission of heat in body tissues during moxibustion,and the features in moxibustion heat transmission (from the proximal to the distant) and heat penetration (from the surface to the internal).This study provides theoretical and experimental support for the application of moxibustion in clinical practice.

OBJECTIVEA reversed superficial temporal artery auricular flap was presented to explore a new method for reconstructing the defects of the distal nose by microsurgical techniques.

METHODSA reversed superficial temporal artery auricular flap had been used on fifteen patients with nasal defects, including thirteen patients with alar defects and two patients with nasal tip defects. The reversed superficial temporal vessels of the flap were anastomosed with the recipient facial vessels. The size of the flap was 2.5 cm x 2. 0 cm - 4.0 cm x 2.5 cm, the length of the vascular pedicle was 5 - 8 cm, average 6.5 cm

RESULTSThe flap survived uneventfully in all fifteen patients.

RESULTSdemonstrated satisfactory symmetry between the reconstructed ala and the contralateral side as well as an excellent tip projection. The donor-site defect was minimal.

CONCLUSIONSThe reversed superficial temporal artery auricular flap offers an adequate length of vascular pedicle of the flap, it delivers a good solution to the problem of the vascular pedicle shortage of the proximal superficial artery auricular flap. This technique may become the top choice in the microvascular auricular transfer.

Adult ; Ear, External ; surgery ; Female ; Humans ; Male ; Middle Aged ; Nose ; surgery ; Nose Deformities, Acquired ; surgery ; Rhinoplasty ; methods ; Surgical Flaps ; blood supply ; Temporal Arteries ; surgery ; Tissue Transplantation ; Young Adult

OBJECTIVETo investigate a novel method to differentiate hemangioma from vascular malformation, to stage hemangiomas and to monitor the efficacy of management for hemangioma.

METHODSThe urinary basic fibroblast growth factor (bFGF) concentration of 144 cases (including 69 cases of proliferating hemangiomas, 41 cases of involuting hemangiomas, 23 cases of vascular malformations and 11 negative controls) was examined using enzyme linked immunosorbent assay (ELISA).

RESULTSThe differences of urinary bFGF concentration among proliferating hemangiomas, involuting hemangiomas, vascular malformations and negative control were all significant, while the differences between the latter three groups were not significant.

CONCLUSIONSOur findings suggest that examination of urinary bFGF concentration using ELISA technique is helpful in differentiating hemangioma from vascular malformation, staging hemangiomas and dynamically monitoring the efficacy of treatment for hemangiomas. Our results probably shed new light on the potential pathogenesis of hemangiomas and vascular malformation.

Arteriovenous Malformations ; diagnosis ; urine ; Child, Preschool ; Diagnosis, Differential ; Fibroblast Growth Factor 2 ; urine ; Hemangioma ; diagnosis ; urine ; Humans ; Infant ; Infant, Newborn

OBJECTIVETo observe the electroacupuncture (EA) pretreatment at Baihui (GV20) on the concentration of adenosine deaminase (ADA) and adenosine, and to evaluate its effects on the neurologic function score and the infarction volume after middle cerebral artery occlusion (MCAO) ischemia/reperfusion (I/R), thus exploring its mechanisms for relieving the ischemia/reperfusion injury.

METHODSTotally 54 male SD rats were randomly divided into 3 groups, the sham-EA group, the EA group, and the control group, 18 in each group. Rats in the control group were not intervened after anesthesia. Rats in the EA group were needled at Baihui (GV20) for 30 min. Rats in the sham-EA group received the same procedure as those performed in the EA group without electricity connected. The changes of adenosine and ADA contents were detected at 30, 60, and 120 min after EA respectively. The I/R model was established. Totally 48 male SD rats were randomly divided into 6 groups, i.e., the model group (Group A), the EA group (Group B), the EA +8-Cyclopentyl-1,3-dipropylxanthine (DPCPX) group (Group C), the EA + DMSO group (Group D), the Deoxycoformycin (Deo) group (Group E), and the normal saline group (Group F). Rats in Group B, C, and D received EA for 30 min before modeling. Rats in Group C and D were peritoneally injected with DPCPX (1 mg/kg) and DMSO (1 mL/kg) at 30 min before EA. The neurologic function score was evaluated and the infarct volumes were detected after 24-h reperfusion.

RESULTSCompared with the sham-EA group, there was no statistical difference in the contents of the adenosine or ADA in the control group at each time point (P > 0.05). Compared with the control group at the same time point, the content of ADA significantly decreased at 60 min in the EA group [(315.0 +/- 22.9 U/L), P < 0.05], and restored to the normal level at 120 min after EA. The content of adenosine increased in the EA group at 120 min [(20.4 +/- 2.2) ng/microL, P < 0.05]. Compared with the model group, the neurologic function score decreased (P < 0.05) and the infarct volumes were obviously reduced (P < 0.01) in Group B, D and E. There was no statistical difference in the neurologic function score or the infarct volumes in other groups, when compared with the model group (P > 0.05)

CONCLUSIONEA at Baihui (GV20) showed protective effects on the cerebral I/R rats, which might be achieved through lowering the ADA concentration and elevating the adenosine content, and further activating adenosine A1 receptor.

Adenosine Deaminase ; metabolism ; Animals ; Brain Ischemia ; metabolism ; Electroacupuncture ; Male ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; metabolism