OBJECTIVETo analyze the causes of delayed union or nonunion of the ulna after intramedullary nailing in pediatric forearm fractures.

METHODSFrom February 2005 to February 2010,5 patients with forearm fractures who were treated with titanium elastic nailing (TEN) were identified to fulfill the criteria of having developed a delayed union or nonunion of the ulna. The causes of delayed union or nonunion were investigated according to mechanism of injury, fracture location, treatments methods and postoperative management. All patients were male and the age was 3 to 14 years old with an average of 9.4 years. All fractures were located on the mid-third part of forearm. Two cases had a re-fracture. Among them, 3 cases caused by high-energy injury and 2 cases by falling down. Open reduction were performed in 4 cases while the other one was treated with closed reduction. Four patients were immobilized in an above-elbow cast, postoperatively.

RESULTSAll patients were followed up from 7 to 19 months with an average of 11.4 months. There were 4 delayed union and 1 nonunion. Three patients healed after the removal of the nail and avoidance of weight-bearing. Two patients healed by replacing another fixation. No patients had soft-tissue irritation or nail-entry-site infections.. The clinical effect was evaluated according to Daruwalla and Price scores with 3 excellent and 2 good of the results.

CONCLUSIONSUsing titanium elastic nailing for the treatment of pediatric both-bone forearm fractures is a good method. However,strict indication selection should be followed to avoid delayed union or nonunion.

Adolescent ; Child ; Child, Preschool ; Fracture Fixation, Intramedullary ; methods ; Fracture Healing ; Humans ; Male ; Radius Fractures ; physiopathology ; surgery ; Retrospective Studies ; Ulna Fractures ; physiopathology ; surgery

In order to explore reasonable artificial cultivation pattern of Thesium chinense, the biological characteristics and nutrients change in the process of winter dormancy of T. chinense was studied. The phenological period of T. chinense was observed by using fixed-point notation and the starch grains changes were determined dynamically by PAS-vanadium iron hematoxylin staixjing method. Soluble sugar and starch content were measured by anthrone-sulfuric acid method and amylase activity was determined by DN'S method. The results showed that the normal life cycle of T. chinense was two years. T. chinense was growing by seed in the first year, but growing by the root neck bud in the second year. During the process of dormancy, starch and soluble sugar could mutual transformation in different periods. T. chinense had sufficient carbohydrate to maintain growth and also a lot of small molecules to improve their ability to fight against adversity.
Plant Dormancy ; Plant Leaves ; chemistry ; growth & development ; metabolism ; Plant Roots ; chemistry ; growth & development ; metabolism ; Plant Stems ; chemistry ; growth & development ; metabolism ; Santalaceae ; chemistry ; growth & development ; metabolism ; Seasons ; Starch ; analysis ; metabolism

The purpose of this study is to explore depression metabolic markers in rat hippocampus and to investigate the anti-depressant effect of genipin and its mechanisms using nuclear magnetic resonance (NMR) metabonomics. Chronic unpredictable mild stress (CUMS) procedure was conducted to establish the depressive rat model. At the beginning of the third week, genipin low dose (25 mg x kg(-1)), middle dose (50 mg x kg(-1)), high dose (100 mg x kg(-1)), and venlafaxine (50 mg x kg(-1)) were given to the CUMS rats separately once daily for two weeks except control and model groups. Rat hippocampus was analyzed by 1H NMR based metabonomics after drug administration for 2 weeks. Significant differences in the metabolic profile of rat hippocampus of the CUMS treated group and the control group were observed with metabolic effects of CUMS including decreasing in glycine and N-acetylaspartate, increasing in inositol, glutamate, lactate, glutamine, taurine and alanine. Genipin showed ideal antidepressive effects at a dose of 50 mg x kg(-1) in rats, decrease of inositol, glutamate, lactate, alanine were observed, while glycine and N-acetylaspartate were increased. Important influence has been found on normal nervous system function of these significant changed metabolites, which suggests that the antidepressant effect of genipin may be played by enhancing the activity of neurons in hippocampus, repairing and improving the function of the neuron. The metabonomics approach is an effective tool for the investigation of the anti-depressant effect and pharmacologic mechanisms of genipin.
Alanine ; metabolism ; Animals ; Antidepressive Agents ; isolation & purification ; pharmacology ; Aspartic Acid ; analogs & derivatives ; metabolism ; Behavior, Animal ; drug effects ; Chronic Disease ; Depression ; drug therapy ; metabolism ; physiopathology ; Gardenia ; chemistry ; Glutamic Acid ; metabolism ; Glycine ; metabolism ; Hippocampus ; drug effects ; metabolism ; Inositol ; metabolism ; Iridoids ; isolation & purification ; pharmacology ; Lactic Acid ; metabolism ; Magnetic Resonance Spectroscopy ; Male ; Metabolomics ; Plants, Medicinal ; chemistry ; Rats ; Rats, Sprague-Dawley

Objective To evaluate the left ventricular synchrony after myocardial infarction (MI) by ultrasound targeted microbubbles destruction (UTMD)-mediated angiogenin 1 (Ang1) gene transfection in canine.Methods Twenty-one dogs were divided into three groups (n =7 in each group):①control group (healthy dogs);②MI group (MI dogs without treatment);③UTMD group (MI dogs with UTMD treatment).One month later,the size and systolic function of heart were measured by echocardiography.The synchronization parameters derived from two dimensional-speckle tracking imaging(2D-STI) included the standard deviation and maximum difference of time to peak strain for all left ventricular segments (Tls-SD,Trs-SD,Tcs-SD,Tls-Dif,Trs-Dif and Tcs-Dif).CD31 and α-SMA were applied for quantifying capillary and arteriolar density.The Ang1,SERCA2a and PLB protein were detected by Western blotting.Results ① One month later,the conventional ultrasonic parameters were compared among three groups,the LVEDD,LVESD and E/e'increased and LVEF,e'and E/A reduced in MI group than those in control group,all of them partially recovered in UTMD group than those in MI group,but were still lower than those in control group (P ＜0.05);②The left ventricular synchrony parameters of Tls-SD,Tls-Dif and Trs-SD showed significant differences among the three groups(P ＜0.05),the degree of dyssynchrony increased in MI group than control group,they were lower in UTMD group than those in MI group.The Tcs-SD,Tcs-Dif and Trs-Dif showed no significant difference among three groups (P ＞ 0.05);③ The immunohistochemistry showed the higher blood vessel density in UTMD group than that in MI group(P ＜ 0.05);④The relative quantity of Ang1 was significantly higher in UTMD group.The relative quantity of SERCA2a protein was lower in MI group than that in control group,increased in UTMD group,the trend of PLB was contrary to it.The differences were statistically significant (all P ＜0.05).Conclusions The UTMD-mediated Ang1 gene transfection can promote angiogenesis after MI,reverse left ventricular remodeling and improve left ventricular synchrony.The myocardial synchrony may be related to the expression of calcium ions key protein SERCA2a and PLB.

Objective To investigate the endoscopic findings and treatment of gastrointestinal neu-roendocrine neoplasms.Methods Endoscopic manifestation and treatment were analyzed retrospectively in 72 patients who were diagnosed as having gastrointestinal neuroendocrine neoplasms by endoscopy and pathol-ogy from May 2011 to December 2014.Results In 72 patients of gastrointestinal NEN,rectum was most commonly involved (48 patients,66.7%),followed by the stomach (16 patients,22.2%),duodenum, esophagus and the ileocecal valve.There were certain features in rectal neuroendocrine neoplasms under endoscopy,mostly manifested by submucosal tumors.But gastric,esophageal,and small intestine NEN man-ifestations showed various forms,without specific typical features,and easy to be misdiagnosed.Some patients diagnosed as having NEN G1 or G2 underwent EMR,ESD or laparoscopy combined with endoscopy resection.Patients diagnosed as having NEN G2 or neuroendocrine carcinoma by pathology received surgical resection,chemotherapy or palliative treatment.All 50 patients underwent endoscopic treatment successful-ly.Perforation occurred in one duodenal bulbar G1 patient during ESD.No bleeding occurred during and after the operation.All patients after treatment were followed up for 15.6 +13.2 months on average with no recurrence or metastasis.Conclusion Manifestations of gastrointestinal neuroendocrine neoplasms vary under endoscopy.Some tumors that locate in mucosa or submucosa with diameter less than 1cm can be resec-ted through EMR or ESD.

Objective To observe the rate-adaptive response of dual sensor pacemakers integrated with activity sensor and minute ventilation sensor.Methods Fifty patients with chronotrepic incompetence were implanted with pacemakers of integrated sensor.The patients with pacemakers implanted were arranged to take upstairs test,downstairs test and tapping test under the monitor of integrated sensor,minute ventilation sensor and activity sensor respectirely.The rate-adaptive responses were tracked down every 15 seconds with remote heart rate monitor.The results were compared with the control group patients with normal sinal chronotropic function(n=15).Results In activity sensor group,pacing rates were significantly higher than the normal control group in downstairs test and tapping test.In minute ventilation sensor group,pacing rates increasement was significantly slower in the beginning of upstairs test.Pacing rates of integrated group were similar to the normal control group in upstairs and downstairs tests.Conclusion The rate-adaptive pacing response of dual sensor integrated with activity sensor and minute ventilation sensor,which is mostly close to the normal chronotropic response,better than that of single sensor.

Obective: To study the genetic diversity of Pinellia ternata. the growth rhythm. Method: Sixteen populations of P． ternata. originated mostly from middle and lower reaches of Yangtze River valley were collected and cultivated in Weigang Experimental Farm of Nanjing Agricultural University with same cultural conditions, whose differences in growth rhythm have been observed and compared continuously for two years. Result and conclusion: There are obvious differences in sprouting, lamina spreading, bolting and "sprout tumble", Three times of "sprouting" and so-called "sprout tumble" and two fast-growing periods for plants in most of the populations in spring and autumn respectively were observed within a year, including mass bolting in May. But the starting time and duration are very different from population to population, witn flowering being prior to sprouting in the population originated from Jurong county.

Obective: To study the genetic diversity of Pinellia ternata. on the chemical composition. Method: Fifteen populations of Pinellia ternata. originated mostly from middle and lower reaches of Yangtze River valley were collected and cultivated in Weigang Experimental Farm of Nanjing Agricultural University with same cultural conditions, and contents in three types of index chemicals extracted from tubers of the populations have been compared continuously. Result and conlusion: The difference in contents of β-sitosterol and Val and Arg extracted from tubers of the populations has been observed, and those contents are also different with harvesting time. But the mean contents of each of the three types of chemicals in autumn are all higher than those in summer respectively.

OBJECTIVESTo investigate the tissue ultrastructure changes of small testis and sex hormone and their correlation.

METHODSThe patients were divided into small tests (n = 8) and control group(n = 12). FSH, LH, T were determined by radioimmunassay. Diameter and wall thickness of convoluted seminiferous tubule were investigated with light microscope and electro microscopy on small testis tissue morphology and ultrastructure.

RESULTSFSH, LH, T of small testis and control group were (21.05 +/- 9.15) IU/L vs (6.74 +/- 3.52) IU/L, (22.88 +/- 6.25) IU/L vs (6.60 +/- 1.48) IU/L and (0.30 +/- 0.04) nmol/L vs (17.55 +/- 9.25) nmol/L, respectively. Seminiferous tubule diameter and wall thickness were(37.33 +/- 6.80) microns vs (198.46 +/- 29.84) microns and (10.30 +/- 1.82) microns vs (2.95 +/- 0.20) microns. Small testis tissue ultrastructure changed significantly.

CONCLUSIONSPathologic changes of small testis tissue in many parts such as seminiferous tubule, germinal epithelium, Sertoli cell, Leydig cell, limiting membrance and blood vessel may relate with genetics and immunoreaction.

Adult ; Follicle Stimulating Hormone ; metabolism ; Gonadal Steroid Hormones ; metabolism ; Humans ; Luteinizing Hormone ; metabolism ; Male ; Statistics as Topic ; Testis ; anatomy & histology ; metabolism ; ultrastructure ; Testosterone ; metabolism

OBJECTIVETo investigate the effect of Sarcandra glabra in scavenging reactive oxygen species (ROS) produced by γ-ray irradiation in the parotid gland of miniature pigs.

METHODSForty-five male miniature pigs were randomly divided into control group, radiation group and radiation plus medication group, and each group contained 3 parallel groups (subgroups a, b and c). From 1 week before exposure of the parotid gland region to 15 Gy γ-ray irradiation (which was not administered in the control group), the miniature pigs in radiation plus medication group were given Sarcandra glabra powder, while those in the other groups received an equal amount of saline. Bilateral parotid glands were taken and weighed on the days 10, 40 and 90 following the exposure in subgroups a, b, and c, respectively, and ROS content in the parotid glands were determined by enzyme-linked immunosorbent assay.

RESULTSThe content of ROS was significantly lower in radiation plus medication group than in the radiation group (P<0.01). In the radiation plus medication group, the ROS content showed no significant difference between subgroups a and b or between subgroups a and c (P>0.01), but differed significantly between subgroups b and c (P<0.01). Sarcandra glabra showed a strong ROS-scavenging effect 10 days after the irradiation, and the ROS content was similar with that in the control group (P>0.01); at 40 and 90 days, the ROS-scavenging effect of Sarcandra glabra was still observable, but the ROS content was significantly higher in the irradiation plus medication group than in the control group (P<0.01).

CONCLUSIONSarcandra glabra displays a ROS-scavenging effect in the parotid gland of miniature pigs against irradiation, especially at 10 days following the exposure, which may serve as the main mechanism for the protective effect of Sarcandra glabra against radiation injury in the parotid gland.

Animals ; Drugs, Chinese Herbal ; pharmacology ; Free Radical Scavengers ; pharmacology ; Magnoliopsida ; chemistry ; Male ; Parotid Gland ; metabolism ; radiation effects ; Radiation Injuries ; prevention & control ; Radiation-Protective Agents ; pharmacology ; Reactive Oxygen Species ; metabolism ; Swine ; Swine, Miniature