Objective To develop a portable, easily-used and effective fracture fixation material during emergency treatment of battle wound. Methods Based on vacuum plasticity, macromolecule particles were filled into prefabricated bag, in which the air was deflated. The bag became stiff. When it was bound with belt, it acted as fracture fixation. Results Experiments showed that this kind of splint attached closely with body without any accessorial material. The effect was good without any restriction from region or environment. Conclusion This kind of fracture fixation splint has advantages in operation time, applicable parts and fixation effects compared with other fixation material.

Objective To investigate the effects of minocycline on cell viability and neurite outgrowth of pheochromocytoma cells (PC12) after oxygen‐glucose deprivation(OGD) injury .Methods PC12 cells were exposed to OGD insult for 2 ,4 ,6 ,8 h to estab‐lish a cerebral ischemia model in vitro .High‐differentiated PC12 cells were cultivated and randomly divided into three groups :con‐trol group ,OGD group and various doses of minocycline(0 .1 ,1 .0 ,10 .0 μM) treated group .24 h after OGD‐reperfusion ,PC12 cells viability was assessed by CCK‐8 assay ,the neurite was labeled with MAP‐2 by immunofluorescence and neurite length was meas‐ured by the Image‐Pro Plus 7 .0 software ,GAP‐43 protein expression was determined by Western blotting .Results Compared to the OGD groups ,minocycline induced a concentration‐dependent increase in cells viability [(46 .1 ± 2 .9)% vs .(77 .0 ± 2 .5)% ,P<0.01],improvedneuriteoutgrowthandincreasedtheexpressionofGAP‐43proteininPC12cellsafterOGDinjury([(0.34±0.04) vs .(2 .11 ± 0 .10) ,P<0 .01] .Conclusion Minocycline could protect against oxygen glucose deprivation injury and promote neurite outgrowth .This finding suggests minocycline may be a novel therapy for cerebral ischemia .

A new embedded telemetry system for potentiometric sensors was developed. The system consisted of a transmitter unit, a receiver unit and a personal computer ( PC) . The transmitter unit included a current amplifier, a∑-Δanalog-to-digital converter ( ADC) , a microcontroller unit ( MCU) and a radio module. The receiver unit was composed of a radio module, a microcontroller unit and a serial-to-USB converter module. The receiver unit was connected to an upper computer via a universal serial bus ( USB ) . The embedded software written in C language controlled the signal acquisition and transmission. The computer software written in LabVIEW language was used for data storage and display. The range of the acquisition voltages was from-1. 17 V to +1. 17 V. In order to verify the accuracy and reliability of this system, a control experiment had been done with this system and a digital multimeter. Moreover, a response test of acidity changes had been done with the self-made H+ selective electrode. The results showed that the accuracy of this system could be up to 0. 1 mV and it had strong anti-noise ability. The square of the linear correlation coefficient of the response of the changes in pH values was 0 . 998 . The curve of the results measured by this system was consistent with that measured by the commercial electrochemical analyzer. The system was built with standard hardware components and the size of the transmitter unit was only 29 mm×14 mm×11 mm. It can be easily used for remote and real-time detection for the potentiometric sensor.

OBJECTIVE:Taking metoprolol succinate sustained-release tablets as an example,to explore the value of speckle tracking imaging in therapeutic efficacy evaluation of CHF drugs. METHODS:68 CHF patients who had never underwent regular treatment were given Metoprolol succinate sustained-release tablets and anti-heart failure agents for 3 months. NYHA classification, resting heart rate(RHR),6 min walk distance(6MWD)and conventional echocardiographic measurements were tested before and 1 and 3 months after treatment. Dynamic image were collected in the apical 2-chamber view,apical 4-chamber view and left ven-tricular long axis plane for speckle tracking imaging offline analysis. The left ventricular global longitudinal strain (LVGLS) were measured. After 3 months of treatment,CHF patients were divided into standard group(group A,RHR 55-60 times/min)and non-standard group (group B,RHR>60 times/min) according to resting heart rate. The improvement of above indicators were com-pared between 2 groups,and that of LVGLS was also compared. RESULTS:After 1 month of treatment,RHR,LVEDd,LVEF and LVGLS of group A were improved significantly,compared with group B,with statistical significance (P<0.05). After 3 months of treatment,there was statistical significance in above indicators between 2 groups(P<0.05). In group A,RHR,6MWD and LVGLS improved significantly after 1 month of treatment,there was statistical significance,compared with before treatment (P<0.05);there was statistical significance in above indicators after 3 months of treatment,compared with before treatment and after 1 month of treatment (P<0.05). In group B,RHR and 6MWD improved significantly after one month of treatment;there was statistical significance,compared with before treatment(P<0.05);there was statistical significance in significant improvement of each indicator between after 3 months of treatment and before treatment (P<0.05);only there were statistical significance in RHR and NYHA grading,compared with after one month of treatment(P<0.05). CONCLUSIONS:Speckle tracking imaging can early reflect the left ventricular function improvement of CHF patients after anti-heart failure treatment,especially in patients with RHR control standard earlier and more significant. Speckle tracking had good clinical application value in the follow-up treatment of heart failure as routine evaluation index.

ABSTRACT:Objective To a rare case of double primary cancer (hepatocellular carcinoma with gallbladder)to guide clinical application.Methods and Results We reported one case of primary hepatocellular carcinoma and gallbladder.A male patient,54 years old,had main complaints of intermittent right upper quadrant pain for 4 days. The abdominal CT of the local county hospital showed gallstones,gallbladder with liver infiltration.And then he went to the First Affiliated Hospital of Xi’an Jiaotong University for further treatment.Laboratory examination revealed:HBsAg(+),HBcAb(+),alpha-fetoprotein (AFP)> 60 500 ng/mL,carcinoembryonic antigen (CEA) 5.25 ng/mL.Abdominal CT showed hilar slightly stronger light echo groups:liver cancer or gallbladder cancer? Hepatic artery and portal vein CT imaging (CTA+CTV)examination showed the malignant tumor shadow in the inside of the left hepatic lobe huge,uneven thickening of the gallbladder wall,suspected liver disease with gallbladder infringement or gallbladder disease with liver infringement. With the preoperative preliminary consideration of primary liver cancer with infiltration of the gallbladder,we chose the operation as the resection of segment Ⅳ b and Ⅴ of the liver,cholecystectomy and T tube drainage.Pathological examination postoperative showed the bulky liver carcinoma grade Ⅲ and the poorly differentiated adenocarcinoma of gallbladder.A month later,abdominal CT showed the tumor spread intrahepatic,prompting the poor prognosis.Conclusion The two which are not continuous,which is the standard of double primary cancer,are not suitable for all double primary cancers.This case provides useful experience for future similar diagnosis and treatment of disease,and also helps us with timely and accurate identification of “metastatic”or “primary”,which is the key point for clinicians to give patients an effective treatment.

Objective To study the effect of siRNA targeting survivin and tumor necrosis factor related apoptosis-inducing ligand on the proliferation and apoptosis of hepatocellular carcinoma ( HCC) cells. Methods siRNA eukaryotic expression vector was constructed and the effects of soluble tumor necrosis factor related apoptosis-inducing ligand ( sTRAIL) on HCC cells were observed. Results The recombinant plasmid Psilence ( + )-survivin was successfully constructed. Survivin mRNA expression inhibition ratio reached 73% by RT-PCR. Observed by MTT method sTRAIL failed to inhibit the survival rate of HepG2、HepG2/Silence( - ) cells at 12 h、24 h、48 h when compared to control groups. With the survivin gene being inhibited, the survival rate of HepG2/Silence( + ) cells(0. 518?0. 017) decreased in 12 h compared to control groups (0. 741?0. 005 ) and reached the lowest level in 48 h ( P

The human atrial muscle cells were investigated by ultrastructural CMPase cytochemistry and atrial natriuretic factor (ANF) immunocytochemistry. The primary lysosomes and ANF were labelled by these techniques, respectively. ANF was localized in the atrial specific granules, these granules were similar in size and 0.20? 0.051?m in diameter, distributed over the entire cytoplasm, preferentially being located in the subsarcolemmal and perinuclear region and forming clusters. Primary lysosomes were various in size, 0.30?0.191?m in diameter, significantly larger than atrial specific granules (P

Objective: To investigate the physical and intellectual development and mutation characteristics of the phenylalanine hydroxylase (PAH) gene among 53 newborns with phenylketonuria (PKU), so as to provide insights into the management and genetic counseling of PKU Methods: The medical records of 54 children with definitive diagnosis of PKU and standardized therapy until 2 years at the Center for Neonatal Disease Screening of Shanxi Children' s Hospital from 2018 to 2021 were collected. Newborns' body weight and height developments were evaluated using the World Health Organization growth chart (2006 version), and the intellectual development was assessed using the national criteria of Development Behavior Assessment Scale among Children at Ages of 0 to 6 Years (WS/T 580-2017). The gene mutations were detected among neonates and their children, and the physical, intellectual developments and genetic characteristics of neonates with PKU were descriptively analyzed. Results: The 53 PKU cases included 29 male children and 24 female children, 36 cases with classic PKU and 17 cases with mild PKU, and 30 cases from rural areas and 23 cases from urban areas. The study subjects had a median age of 30 (10) d at initial therapy, and a mean blood phenylalanine concentration of (1 507±685) μmol/L at definitive diagnosis. There were 52 cases with normal height developments (98.11%), and all cases had normal weight and intellectual developments. The mean developmental functional quotient (DFQ) was significantly greater among urban children with PKU than among rural children [(94.92±8.57) vs. (87.65±6.57); t=-3.498, P=0.001], and the mean DFQ was significantly higher among children with mild PKU than among those with classic PKU [(95.55±8.76) vs. (88.57±7.11); t=-3.095, P=0.003]. There were 37 mutations detected in the PAH gene, which were mainly distributed in exons 3, 6, 7, 11, 12 and intron 4. Three high-frequency mutation sites were detected, including c.728G>A, c.611A>G and c.1197A>T, including three novel mutations (c.674C>G, c.1316-2A>C and c.1069T>C). Conclusions Following standardized treatment, the children with PKU have comparable physical and intellectual developments as compared to normal children. c.728G>A, c.611A>G and c.1197A>T were predominant mutations in the PAH gene among these 53 children with PKU, and three novel mutations were identified, including c.674C>G, c.1316-2A>C and c.1069T>C.

A new micro embedded telemetry system was developed for the amperometric sensing detection. Its output voltage range was ±0. 5 V and resolution was<1 mV. The current acquisition range was ±1μA and the minimum resolution was 0. 2 nA. This telemetry system was designed based on microprocessor ADuCM360, including a potentiostat, a current detection module and a radio module. And the size was only 24 mm × 13 mm × 11 mm. The computer software written in LabVIEW language was used for data storage and display. In order to verify the accuracy and reliability of this system, an electrical performance test was performed. The current response for ascorbic acid with different concentration was recorded by using the telemetry system. The potential of working electrode was set as 30 mV, and the current response of ascorbic acid electrode had a good linear relationship with its concentration within the concentration range of 50-300 μmol/L. Linear equation was I(nA) = 2. 98CAA(μmol/L)-137. 39, and linear correlation coefficient R2=0. 984. Moreover, the applicability of the instrument in the study for living animals was explored by using the cerebral ischemia as model.

Recent studies have shown that TCM treatment for bone metabolic diseases, such as steroid-induced avascular necrosis of the femoral head, has definite efficacy and has received extensive attention. However, due to lack of molecular biological basis of pharmacodynamics mechanism, it has not yet reached the standard of scientific treatment. The discovery of OPG/RANK/RANKL system has become a new breakthrough point in the prevention and treatment of bone metabolic diseases. The pathogenesis of deficiency of spleen and kidney - blood stasis - caused by phlegm arthralgia caused by blood stasis is closely related to the system. The effect of the final control of the system from the deficiency theory can be expressed through the axial micro-information. This article discussed the TCM syndrome differentiation of steroid-induced osteonecrosis of the femoral head and the relation of regulation of bone metabolism combined with the OPG/RANK/RANKL system, and provided the basis for prevention and treatment of this disease.