Brief discussion on the characteristics of meridian sinew theory at the early era / 中国针灸

The characteristics of meridian sinew theory at the early era have been collected. It is believed that the running courses and indications of twelve meridian sinew regions in Lingshu (Miraculous Pivot) are closely associated with Zubi Shiyimai Jiujing (Moxibustion Therapy on the Eleven Meridians of Legs and Arms) and Yinyang Shiyimai Jiujing (Moxibustion Therapy on the Eleven Meridians of Yin and Yang). Due to the attachment of twelve regular meridians, the development of its own theory is blocked. Meridian sinew theory guides the diagnosis and treatment of many dominant disorders (e.g. pain disorder and bi syndrome) with acupuncture and moxibustion. The defensive qi is circulated among meridian sinews, which is the core of meridian sinew theory. The acupoint selection relies on the meridian sinew theory at the early era, such as "consolidating muscles when they involved in disorders, using painful sites as acupoints to treat diseases" "interaction of the associated muscles" and "conducting meridian qi along with the running courses of meridians". The crack needling (one of the nine needling techniques exerted between two muscles to treat muscular pain) is adopted generally to mobilize the defensive qi so as to resist pathogens, relieve the compression in foci and promote qi and blood circulation in meridians. The rational understanding of meridian sinew theory may improve the accuracy of diagnosis and treatment of meridian sinew disorders, "reduce the pressure" on meridian theory and contribute to the enrichment of the theoretical framework of acupuncture and moxibustion.

Experimental Research Progress of Replenishing Qi and Activating Blood Circulation Traditional Chinese Medicine on Mitochondrial Quality Control in Treatment of Chronic Heart Failure / 中国实验方剂学杂志

Heart failure is a complex clinical syndrome，which is the final result of compensatory failure of heart injury caused by various reasons. Long-term persistent cardiac stress leads to mitochondrial dysfunction，which in turn further damages cardiomyocytes and leads to disease progression. Timely removal of damaged mitochondria in cardiomyocytes and maintaining a good living environment of viable mitochondria is not only an effective means to protect cardiomyocytes，but also a new way to prevent and treat heart failure and ventricular remodeling. Mitochondrial quality control is a series of cellular activities for mitochondria to maintain their structural and functional stability，including oxidative stress response，regulation of mitochondrial dynamics，mitochondrial autophagy，intracellular calcium regulation and so on. Traditional Chinese medicine（TCM） mostly uses drugs of replenishing Qi and activating blood circulation in the treatment of chronic heart failure，and Qi and mitochondria are similar in function. According to TCM，the performance of the body as "static，descending and inhibitory" in the case of Qi deficiency can also be compared with the energy defect of mitochondria. The classical method of tonifying qi and activating blood circulation in TCM can be applied here. In recent years，TCM takes mitochondria as the target and carries out many related experimental studies from the point of view of myocardial energy supply. It is found that Chinese herbs for replenishing Qi and activating blood circulation can participate in regulating the quality control mechanism of intracellular mitochondria with multiple targets and links. It is proved by experiments that Chinese herbs for replenishing Qi and activating blood circulation can exert myocardial protective effect through this mechanism.

Comparison of efficacy between laparoscopic and open proximal gastrectomy with double-tract reconstruction for Siewert type Ⅱ and Ⅲ adenocarcinoma of the esophagogastric junction / 中华胃肠外科杂志

Objective: To compare the efficacy between laparoscopic and open proximal gastrectomy with double-tract reconstruction for Siewert type II and III adenocarcinoma of the esophagogastric junction (AEG). Methods: A retrospective cohort study was conducted. Inclusion criteria: (1) 18 to 80 years old; (2) Siewert II and III AEG was confirmed by preoperative gastroscopy and biopsy, which could not be resected by endoscopy; patients undergoing radical proximal gastrectomy with double-tract reconstruction; (3) contrast-enhanced abdominal CT staging was cT1-2N0M0; (4) Eastern Cooperative Oncology Group (ECOG) physical status score <2 points, American Association of Anesthesiologists (ASA) grade 1 to 2; (5) patients agreed to perform proximal gastrectomy and signed an informed consent. Those who had undergone neoadjuvant radiochemotherapy, suffered from serious mental diseases and had incomplete data were excluded. According to the above criteria, clinical data of 84 consecutive patients with Siewert II and III AEG undergoing surgery at General Surgery Department of The Affiliated Tumor Hospital of Zhengzhou University from October 2010 to December 2018 were collected and analyzed. Of 84 patients, 61 underwent open proximal gastrectomy with double-tract reconstruction (OPG group), while 23 underwent laparoscopic proximal gastrectomy with double-tract reconstruction (LPG group). The perioperative complications and postoperative reflux esophagitis of two groups were compared. A P-value of <0.05 was considered to be statistically significant. Results: Among 84 cases, 74 were male and 10 were female. There were 43 cases of Siewert type II and 41 cases of Siewert type III. There were no significant differences in age, gender, body mass index, comorbidities, Siewert type, and tumor staging between the two groups (all P>0.05). As compared to the OPG group, the LPG group had longer operation duration [(223±21) minutes vs. (161±14) minutes, t=15.352, P<0.001], less intraoperative blood loss [195 (150, 215) ml vs. 208 (192, 230) ml, Z=2.143, P=0.032], and shorter time to flatus [(2.8±0.7) days vs. (3.3±0.9) days, t=2.477, P=0.015]. There were no significant differences in the number of harvested lymph nodes, time to the first meal and postoperative hospital stay between the two groups (all P>0.05). Postoperative complications developed in 2 cases (8.7%, 1 case each for anastomotic leakage and intestinal obstruction) in the LPG group and 5 cases (8.2%, 1 case each for anastomotic leakage, anastomotic bleeding, and anastomotic stenosis, 2 cases of incision infection) in the OPG group (χ(2)=5.603, P=0.231). The median follow-up was 41.2 (12.8-110.5) months. One patient (1.6%,1/61) had obvious reflux symptoms in the OPG group, compared with none in the LPG group (χ(2)=0.644, P=0.422). Esophagitis occurred in 1 case (4.8%, 1/21) in LPG group, compared with 4 patients (7.1%, 4/56) in the OPG group, without significant difference between the two groups (χ(2)=0.505, P=0.477). Conclusion: Laparoscopic proximal gastrectomy with double-tract reconstruction is safe and feasible without increasing the risk of postoperative complication and reflux esophagitis.

Surgical treatment for congenital heart disease combined with pulmonary artery hypertension in children with body weight ≤5 kg / 第二军医大学学报

Objective To evaluate the surgical treatment for congenital heart disease plus pulmonary artery hypertension (CHD-PAH) in children weighing less than 5 kg. Methods The clinical data of 29 CHD-PAH children with body weight ≤5 kg who were treated surgically between Aug. 2016 and Aug. 2018 were collected and retrospectively analyzed. Surgical complications and death causes were analyzed. Pulmonary artery pressure (PAP), the ratio of main pulmonary artery to ascending aorta diameter (MPA/AAO), the ratio of ventricular pre-ejection period to acceleration time (PEP/AT), arterial oxygen partial pressure (PaO2), pulse oxygen saturation (SpO2), the ratio of height to normal children, the ratio of weight to normal children, and functional classification of pulmonary arterial hypertension were evaluated in 26 survival children before surgery, before discharge and at 6 months after surgery. Results The procedures were finished successfully in all the 29 children. Postoperative complications were as follows: Low cardiac output syndrome (LCOS, 2 cases), pulmonary hypertension crisis (1 case), residual shunt or recanalization (2 cases), arrhythmia (1 case), hepatic insufficiency (1 case), and delayed wound healing (2 cases). Three children (10.3%) died; of them 2 died of LCOS and one died of pulmonary hypertensive crisis. The above-mentioned indexes were significantly improved before discharge and at 6 months after surgery (P<0.05). The growth and development of 24 children reached the normal level 6 months after surgery. Conclusion Surgical treatment is safe and effective for CHD-PAH children with body weight≤5 kg, which can restore normal growth and development of the children.

Analysis of the divergent meridians of twelve meridians / 中国针灸

This paper analyzes the problems existing in the current theory of divergent meridian (""), such as the unclear route of divergent meridian, the controversy in the "---" and the lack of in-depth research on the theory of "", clarifies the source and privides insights. The author analyzed the word "" by means of the four proofreading methods combined with philology method to explore the origin of " ". The divergent meridians is the remnant of the original meridians system in the bamboo and silk documents, which was put into the meridians system after being sorted out by doctors. The twelve meridians are combined in two, forming the "" point, which is located in the neck, and has a great influence on the blood circulation of the head and neck. "" point and theory can guide the differentiation of acupuncture and moxibustion, and has an important guiding significance for the treatment of empirical, emergency and head and face diseases.

Drinking water current situation among Guanzhong area rural primary and secondary schools in 2018 / 中国学校卫生

Objective@#To investigate and analyze the drinking water quality among rural primary and secondary schools in Guanzhong area in 2018, and to provide a basis for the targeted improvement of water supply facilities.@*Methods@#Develop a questionnaire on the basic situation of centralized water supply in rural schools, according to the Standard Test Method for Drinking Water (GB/T 5750—2006) and the Sanitary Standard for Drinking Water (GB 5749—2006) for the rural school network in Guanzhong area. The peripheral water collection and testing carried out single factor and multifactor statistical analysis on the relationship between water quality influencing factors and water quality pass rate.@*Results@#The total qualified rate of drinking water quality in rural schools in Guanzhong area was 59.1%. Univariate analysis showed that water quality rate was affected by four factors including water source type, engineering type, sanitation permit and disinfection equipment use, and the difference was statistically significant(P<0.05). Unconditional two-class logistic regression analysis showed that disinfection (OR=3.14), engineering type (OR=2.05), and sanitation permit (OR=1.99)(P<0.05) affected the water quality pass rate.@*Conclusion@#It is recommended to further strengthen the investment in the renovation of water supply for rural schools in Guanzhong area, and specifically strengthen water supply treatment and standard disinfection.

Analysis of the academic features of the moxibustion of ' physicians / 中国针灸

' acupuncture and moxibustion physicians have a lot of talented people. Their academic theories promote the development of moxibustion theory. - used acupuncture and moxibustion together in clinic, and emphasized reinforcing and reducing method. Moxibustion was performed with unique matching acupoint according to different cases. proposed the theory "moxibustion can cure sores, and has reinforcing and reducing method"scars block the movement of and do not use moxibustion when there is no disease". - elaborated on the theory of moxibustion, which involved a wide range of ideas and advocated the idea of combining acupuncture with drugs. put forward the theory "moxibustion is mostly used at acupoints on the back, and can cure multiple syndromes" "focus on the use of miraculous acupoints for the treatment of emergency diseases" "moxibustion must be treated with enough moxibustion to cure the disease". - thonght that only by carefully identifying the types of diseases and using corresponding acupoints could have a very good curative effect; moxibustion had indications and contraindications, so be careful when used it; moxibustion was divided into and , also divided into reinforcing and reducing methods; sores were suitable for moxibustion and heat syndrome could also be used by moxibustion. He also believed that moxibustion was as important as acupuncture with the complementary relationship. Hence, the valuable significance of moxibustion in clinical practice is explored through the collection of the academic thoughts of -, , -, and -.

Design of personal dosimeter system based on ZigBee wireless network / 医疗卫生装备

Objective To research and design-an personal dosimeter system to provide data for nuclear radiation injury protection.Methods The overall architecture,hardware module and software of the system were designed with ZigBee wireless network technology and the principle.The system was composed of a terminal node,a router and a coordinator.Results The system could collect the information on nuclear radiation dosage of the serviceman within 1 km,and then the data were uploaded with the wireless network.Conclusion The system gains advantages in low power consumption,low cost,low interference and etc,and plays a very important role for commander to hold the combatants' nuclear radiation dose in the battlefield.In addition the system can also be applied in civilian field to enhance the personal dose management.

Three-dimensional versus two-dimensional imaging systems in laparoscopic radical prostatectomy for prostate cancer: a retrospective cohort study / 南方医科大学学报

<p><b>OBJECTIVE</b>To compare the perioperative, functional and oncologic outcomes of patients with prostate cancer receiving laparoscopic radical prostatectomy (LRP) using three-dimensional (3D) versus two-dimensional (2D) imaging systems.</p><p><b>METHODS</b>From February, 2014 to January 2016, 72 consecutive patients with clinically localized prostate cancer underwent LRP with 2D or 3D imaging systems performed by a single experienced surgeon. The baseline characteristics, perioperative data, and functional and oncologic outcomes of the patients were collected and analyzed.</p><p><b>RESULTS</b>Thirty-six patients underwent 3D LRP and the other 36 patients underwent 2D LRP. Compared with 2D LRP group, 3D LRP group had a significantly shorter operative time (167 vs 218 min, P<0.001), a smaller volume of intraoperative blood loss (86.11 vs 177.78 mL, P<0.001) and a better early urinary continence outcome (88.89% vs 63.89%, P=0.026). No significant differences were found between the two groups in terms of complications, potency outcome or biochemical recurrence-free rate.</p><p><b>CONCLUSION</b>Compared with 2D LRP, 3D LRP shortens the operative time, reduces intraoperative blood loss and is associated with a better early urinary continence outcome in patients with clinically localized prostate cancer.</p>

Chemical constituents from fruiting bodies of Amauroderma rude / 中草药

Objective: To study the chemical constituents from the fruiting bodies in Amauroderma rude of family Ganodermataceae. Methods: The constituents were separated by column chromatography and their structures were elucidated by spectral data analyses. The cytotoxicities of compounds were evaluated using MTT methods. Results: Twelve compounds were isolated and identified from the fruiting bodies of A. rude and were identified as diptoindonesin D (1), 6-deoxyjacareubin (2), jacareubin (3), 1H-indole-3-carboxylic acid (4), methyl 3,4-dihydroxybenzoate (5), 3,4-dihydroxyphenylethanol (6), 3β-hydroxy-7, 22E-dien-ergosta (7), 3β, 7α-dihydroxy-8,22E-5α, 6α-epoxyergosta (8), 3β-hydroxy-7α-methoxy-8 (14), 22E-dien-5α, 6α-epoxyergosta (9), ergosterol 5α, 8α-peroxide (10), 3β-5β-8β-trihydroxy-6, 22E-ergosta (11), and 3β, 5α-6β-trihydroxy-7, 22E-dien-ergosta (12). Compounds 2 and 3 exhibited the cytotoxic activities against HL-60, SMMC-7721, A-549, MCF-7, and SW-480 cell lines and compound 9 showed the cytotoxic activities against HL-60, MCF-7, and SW-480 cell lines. Conclusion: All the compounds are obtained from this fungus for the first time. Compounds 2,3, and 9 show the definite cytotoxicities against five cell lines.

Role of eukaryotic translation initiation factor 4G in tumor / 生理学报

Eukaryotic translation initiation factor 4G (eIF4G) is a scaffold component of eukaryotic translation initiation factor 4F (eIF4F) complex, which takes principal part in the initiating of protein synthesis. Both two subtypes (eIF4G1 and eIF4G2) of eIF4G were found to be closely related with various tumors. The eIF4G1 expression is significantly up-regulated in breast cancer, cervical cancer, nasopharyngeal carcinoma, lung squamous cell carcinoma, prostatic carcinoma and other malignant tumors, compared with those in adjacent tissues; and the eIF4G2 is obviously over-expressed in diffuse large B cell lymphoma and acute myeloid leukemia, but low-expressed in bladder transitional cell carcinoma. This paper reviews the progress in the study of the role of eIF4G in tumor genesis, development, diagnosis and prognosis.

Comparison study of three methods of digestive tract reconstruction after radical gastrectomy in gastric cancer patients / 中华胃肠外科杂志

<p><b>OBJECTIVE</b>To investigate the ideal digestive tract reconstruction methods among three different surgical methods after radical gastrectomy of gastric cancer patients.</p><p><b>METHODS</b>A total of 123 patients who received elective radical gastrectomy for gastric cancer from February 2010 to August 2011 were prospectively enrolled and randomly divided into radical proximal gastrectomy and jejunal interposition group, radical proximal gastrectomy and esophageal with the posterior of residual-stomach group, and radical total gastrectomy and Roux-en-Y esophagojejunostomy group. Patients were followed up for 12 months. Symptoms of reflux esophagitis were observed, gastric emptying tests were done, liver and kidney function was also monitored. The quality of life was documented before operation, and one and twelve months after operation.</p><p><b>RESULTS</b>No significant differences were found among these three groups in the pH value of lower part of esophagus, the blood regular test results and the functional parameters of kidney and liver before and after operation(all P>0.05). Symptoms of reflux esophagitis was reported in 1(2.4%) patients in the jejunal interposition group, 10(24.4%) in esophageal with the posterial of residual-stomach group, and 7(17.1%) in the Roux-en-Y esophagojejunostomy group(P=0.017). There was 1(2.4%), 10(17.1%), and 8(19.5%) patients presented reflux of barium meal in these three groups, respectively (P=0.046). There were no statistically significant difference in PH at the distal esophagus(6.9±0.2 vs. 6.8±0.1 vs. 6.9±0.1, P=0.196). The quality of life was significantly improved one year after surgery in terms of general status, physical function, emotional function, fatigue, nausea/vomiting, pain, constipation, and diarrhea (all P<0.05), with the jejunal interposition superior than the other two methods.</p><p><b>CONCLUSION</b>Three methods of digestive tract reconstruction in radical gastrectomy of gastric cancer patients can improve the health status and the quality of life in gastric cancer patients. Radical proximal gastrectomy and jejunal interposition is the preferred method.</p>

Microanatomy of blood vessels in spermatic cords and its clinical implication / 中华男科学杂志

<p><b>OBJECTIVE</b>Both microsurgical subinguinal varicocelectomy (MSIV) and microsurgical high inguinal varicocelectomy (MHIV) are recommended for the treatment of varicocele, but they differ in technical complexity. This study aimed to determine the microanatomy of spermatic blood vessels in the two surgical approaches.</p><p><b>METHODS</b>We recorded the numbers of spermatic veins, arteries and lymphatics in 80 cases of MSIV and 20 cases of MHIV. We also examined the spermatic cords from 10 adult male cadavers by histological staining.</p><p><b>RESULTS</b>The numbers of medium spermatic veins (2 -5 mm in diameter) were 1.80 +/- 0.83 and 3.98 +/- 1. 99 in MHIV and MSIV, respectively, with significant difference between the two groups (t = -7.536, P < 0.01), and the total numbers of spermatic veins were 6.40 +/- 1.67 and 9.01 +/- 2.70, also with significant difference between the two (t = -4.071, P < 0.01). However, there were no significant differences between MHIV and MSIV in the numbers of small spermatic veins (diameter < or = 2 mm), large spermatic veins (diameter > or = 5 mm), arteries and lymphatics, nor in the numbers of spermatic veins and arteries of the cadavers.</p><p><b>CONCLUSION</b>The total number of spermatic veins and the number of medium spermatic veins may be larger in MSIV than in MHIV, but the medium spermatic veins do not increase surgical difficulty, and MSIV is not more complicated than MHIV.</p>

Design and activity verification of human parathyroid hormone (1-34) mutant protein / 药学学报

Through protein-protein BLAST of homologous sequences in different species in NCBI database and preliminary simulating molecular docking and molecular dynamics by computer software discovery studio 3.1, three amino acids R25K26K27 of natural human parathyroid hormone (1-34) with Q25E26L27 were mutated and the biological activity of the mutant peptide was evaluated. Result showed that: root mean superposition deviation RMSD value between PTH (1-34)-(RKK-QEL) and PTH (1-34) peptide main chain was 2.509 3, indicating that the differences between the two main chain structural conformation was relatively small; the interaction energy between PTH (1-34)-(RKK-QEL) and its receptor protein PTH1R had been enhanced by 7.5% compared to nature PTH (1-34), from -554.083 kcal x mol(-1) to -599.253 kcal x mol(-1); the number of hydrogen bonds was increased from 32 to 38; PTH (1-34)-(RKK-QEL) can significantly stimulate the RANKL gene expression (P < 0.01) while inhibiting the OPG gene expression (P < 0.01) in UAMS-32P cells; in the co-culture system of UAMS-32P cells and mouse primary femur bone marrow cells, PTH (1-34)-(RKK-QEL) stimulated the formation of osteoclasts (P < 0.01) and had a higher biological activity than PTH (1-34) standard reagents.

A new radiopharmaceutical for bone imaging: experimental study of 99mTc-HEDTMP / 生物医学工程学杂志

The purpose of this study is to prepare 99mTc-HEDTMP [N-(2-hydroxyethyl) ethlenediamine-1,1,2-tri (methylene phosphonic acid), a new kind of bone seeking compound; to investigate its biological properties; and to explore the possibility of using it as a potential radiopharmaceutical for skeleton scintigraphy. HEDTMP was labeled with 99mTc by "pretinning" method, the radiochemical purity was 97.00% +/- 0.34%. 99mTc-HEDTMP was found to be stable in 5 hours in vitro with the radiochemical purity over 95% even after being diluted by physiological saline with the factor of dilution 100. The plane bone scanning of rabbits showed that 99mTc-HEDTMP was principally absorbed by skeletal system. Skull, spine and legs could be observed clearly, and were more legible than the images of 99mTc-MDP. Mice trial also indicated the high bone seeking of 99mTc-HEDTMP. The skeletal uptake was 11.92% ID/g, 13.19% ID/g, 10.14% ID/g, 10.04% ID/g, 7.71% ID/g separately at 30 minutes, 1 hour, 3 hours, 6 hours and 24 hours after the injection. Kidney seemed to be the major excretory organ. The clearance of blood was quick and the retaining amount in non-target organs was small. These results indicate that 99mTc-HEDTMP can be prepared easily, and its biological properties can be compared favorably with the commonly used bone imaging agent, and it is well worth further researching as a promising potential radiopharmaceutical in nuclide diagnosis for skeleton diseases.

Molecular imaging of epidermal growth factor receptor in glioma-bearing rats / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To investigate the value of 11C-PD153035 as an EGFR imaging agent in C6 tumor-bearing rat.</p><p><b>METHODS</b>The tumor-bearing rats were generated by subcutaneous injection of glioma C6 cells. Positron emission tomography/computer tomography (PET/CT) scans started as soon as intravenous injection of 11C-PD153035 (15-20 MBq/0.3 ml) was completed, images were collected continuously. The region of interest (ROI) was used to study the percentage of radioactivity in major organs and implanted tumors in the rats. The accumulation and blocking study in vitro was completed.</p><p><b>RESULTS</b>There were significant differences in 11C-PD153035 uptake among major organs. The maximum uptake in the organs ranked in the following order: liver > gastrointestinal tract > kidney > lung > brain > muscle. Radioactivity could be also observed in the tumors. The radioactivity ratio (T/NT, target/non-target) peaked (4.15) at 40 - 50 min post injection. The in vitro blocking study showed that 11C-PD153035 uptaken by C6 cells could be blocked by PD153035.</p><p><b>CONCLUSION</b>The results of this study show that 11C-PD153035 can be uptaken by EGFR-expressing tumors. 11C-PD153035 has a potential as a bioprobe to yield useful information for both diagnosis and therapy of tumors. However, the high concentration of 11C-PD153035 in the gastrointestinal tract is unfavorably affecting the tumor detection in these organs.</p>

Down-regulation of TopI by RNA interference reduces the drug-sensitivity of small cell lung cancer cell lines to topotecan / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To investigate the expressions of TopI gene in small cell lung cancer cell line H446, and explore the influence of TopI on the chemosensitivity of the cell line to topotecan (TPT).</p><p><b>METHODS</b>Western blot was performed to detect the TopI expression in H446 cells. Lipofectamine 2000 was used for the transient transfection of H446 cells by siRNA, and the transfection efficacy was detected. TopI mRNA was analyzed by quantitative RT-PCR and TopI protein was detected by Western blot to selected effective siRNA. The drug-sensitivity to topotecan (TPT) was evaluated by MTT assay.</p><p><b>RESULTS</b>TopI gene was expressed in H446 cells. Lipofectamine 2000 mediated the siRNA effectively (88.67%). Compared with its parental cells, RT-PCR results showed that TopI mRNAs in transfected cells were reduced by (95.7 +/- 1.6)%, (90.8 +/- 1.6)%, (96.1 +/- 2.7)% and (96.3 +/- 1.8)%, respectively, and decreased significantly at protein level. By MTT assay, the inhibition rate of TPT to H446 cells transfected by siRNA was lower than that of control group at same concentrations (P < 0.01).</p><p><b>CONCLUSION</b>siRNAs can silence the expression of TopI and decrease the drug-sensitivity of H446 cells to TPT.</p>

A clinical study on the diagnosis of early rheumatoid arthritis using bone imaging with 99mTc-MDP / 生物医学工程学杂志

This study aimed to explore the usefulness of 99mTechnetium methylenediphosphonate (99mTc-MDP) bone imaging in diagnosticating rheumatoid arthritis (RA). In 66 patients with RA, 99mTc-MDP whole body bone imaging, feet and hands regional bone imaging and ROI were performed. And from each patient, X-ray film, rheumatoid factor (RF), C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) were taken for examination. By the use of 99mTc-MDP, abnormal bone images were observed in 55 cases of RA; the total positive rate of incidence (83.3%) was significantly higher than those by use of X-ray (45.5%), RF (51.5%), CRP (63.6%) and ESR (69.7%); the positive rates of imaging with 99mTc-MDP in the 55 cases of RA (divided into 4 groups according to the course of disease; namely, < 1,1-, 5- and >10-year groups) were 75.0%, 88.9%, 92.3% and 100.0% respectively, whereas the positive rates of those year-groups by use of X-ray were 10.7%, 33.3%, 84.6%, 100.0% respectively; comparison of the two methods, showed statistically significant difference: P<0.01 (< 5-year group); P >0.05 (> 5-year group). In 177 joint lesions detected by bone images, 144 lesions (81.4%) were symmetric, and 33 lesions (18.6%) were single. The most frequently detected lesions were at metacarpophalangeal joints or interphalangeal and wrist joints, metatarsophalangeal or ankle joints, and knee joints. We have noticed that 99mTc-MDP bone imaging can elevate the detectability at the early stage of RA, so it is of value for the treatment of RA.

Investigation of ulinastatin on protection of organ functions in patients with severe disease / 中国中西医结合急救杂志

Objective To study the mechanism and protection of ulinastatin on organ functions in patients with severe disease.Methods Sixty patients in the intensive care unit(ICU)from October 2005 to July 2007 were randomly divided into a control group and an ulinastatin treatment group(each 30 cases).The patients in the control group received the conventional therapy,and the cases in the other treatment group accepted ulinastatin and conventional therapy.According to the disease situations,ulinastatin was administered 200-400 kU once,2-4 times a day,sequentially for 5-7 days.On the day of admission and 3, 5,and 7 days after admission in ICU respectively,blood samples were obtained for measuring alanine aminotransferase(ALT),aspartate aminotransferase(AST),creatinine(Cr),blood urea nitrogen(BUN), activated partial thromboplastin time(APTT),fibrinogen(FIB)and oxygenation index(PaO_2/FiO_2); whether breathing machine or hematodialysis was used and the end results were recorded.Results The rate of usage of breathing machine(23.3%),the incidences of hepatosis(3.3%)and renal dysfunction(10.0%) and fatality(3.3%)in ulinastatin treatment group were obviously lower than those of the control group (63.3%,23.3%,46.7%,10.0%,P0.05).Only one patient received bematodialysis in control group.Conclusion Ulinastatin can protect liver,renal and lung functions markedly and lower the incidence of multiple organ dysfunction syndrome and mortality in patients with severe disease.

Secretory Expression of the Fusion Protein IFN?-HSA in Pichia pastoris / 中国生物工程杂志

Overlapping PCR technology was employed to splice IFN?and HSA genes in vitro. The spliced gene was inserted into Pichia pastoris secretory vector pPIC9K. The IFN?-HSA gene was designed for secretory expression under the control of promoter AOX1 and Mat a signal peptide in pPIC9K. The recombinant plasmid pPIC9K/IFN?-HSA was linearized by restriction enzyme SalI and transformed into Pichia pastoris KM71 by electroporation. The recombinant strains identified by G418 selection and confirmed by PCR analysis were induced by methanol to express fusion protein IFNp-HSA. SDS-PAGE and Western blot analysis of the fusion protein showed that the expressed fusion protein IFNp-HSA with an apparent 90kDa molecular weight had the antigenicity of HSA. The specific activity of culture supernatant was about 640IU/ml assayed by the standard amiviral activity test on WISH cells challenged with VSV virus.