Analysis of four subtypes original research in biomedicine and enlightenment for reseach management / 中华医学科研管理杂志

Objective:To explore the stage connotation and characteristics of original research in the field of biomedicine.Methods:Through theoretical analysis and case studies, the original research in the field of biomedicine is subdivided into four subtypes, and the development laws and countermeasures are discussed in this paper.Results:The original research in biomedicine can be divided into four subtypes according to its dynamic process, which includes Budding (0-0.1), Bottleneck (0.1-1), Expansion (1-N) and Iteration (1- New 1). Each subtype has different technological advancement, maturity, scale, and influence.Conclusions:Analysing the original connotation and laws of the subtypes of 4 original research in biomedicine provides relevant suggestions on formulating funding, development strategies, as well as promoting original medical innovation.

Discussion on Management Model of Medical Devices for Clinical Trials / 中国医疗器械杂志

By analyzing the main problems existing in the current management of medical devices for clinical trials, this study proposes a feasible management model and specific requirements for acceptance, distribution, storage and recovery combining with the characteristics of medical consumable equipment and diagnostic reagent, which provides a favorable guarantee for the authenticity and reliability of clinical trials.

Relationship between spinal Sonic Hedgehog signaling pathway and inflammatory responses in rats with neuropathic pain / 中华麻醉学杂志

Objective To evaluate the relationship between spinal Sonic hedgehog (Shh) signaling pathway and inflammatory responses in rats with neuropathic pain (NP).Methods Forty-eight cleangrade healthy male Sprague-Dawley rats,aged 8 weeks,weighing 250-300 g,were divided into 4 groups (n=12 each) using a random number table method:sham operation group (group S),group NP,dimethyl sulfoxide (DMSO) group (group D) and specific Shh signaling pathway inhibitor cyclopamine group (group CP).Spared nerve injury was produced by exposing the sciatic nerve and branches followed by ligation and transection of tibial and common fibular nerves in anesthetized rats.The mechanical paw withdrawal threshold (MWT) was measured at 1 day before establishing the model and 1 and 7 days after establishing the model.,The animals were sacrificed after measurement of pain threshold at 7 days after operation,and the lumbar segment L4-6 of the spinal cord was obtained for determination of the expression of Shh,Patched homolog (Ptch),Smoothened (Smo) and zinc finger-containing transcription factors 1 (Gli1) (by Western blot) and contents of tumor necrosis factor-alpha (TNF-α) and interleukin-1beta (IL-1β) (by enzyme-linked immunosorbent assay).Results Compared with group S,the MWT was significantly decreased,the expression of Shh,Patched,Smo and Gli1 was up-regulated,and the contents of TNF-α and IL-1β were increased in NP,D and CP groups (P＜0.05).Compared with group NP,the MWT was significantly increased,the expression of Shh,Patched,Smo and Gli1 was down-regulated,and the contents of TNF-α and IL-1β were decreased in group CP (P＜0.05),and no significant change was found in the parameters mentioned above in group D (P＜0.05).Conclusion The mechanism by which Shh signaling pathway is involved in the development and mainterance of inflammatory responses is related to inhibiting inflammatory responses of the spinal cord in rats with NP.

Application of Repetitive Transcranial Magnetic Stimulation for Neuropathic Pain (review) / 中国康复理论与实践

Repetitive transcranial magnetic stimulation (rTMS) may release neuropathic pain (NeP) by changing the excitability of cor-tex, improving the cerebral blood flow, regulating the expression of neurotransmitter, fitting the plasticity, reducing the overexpression of neuronal nitric oxide synthase and overaction of astrocyte, etc. It is used for management of post-herpetic neuralgia, thalamic pain after stroke, NeP after spinal cord injury, phantom limb pain, atypical facial pain post operation of trigeminal nerve, etc. The outcome is associat-ed with the location, frequency, pulses, intensity of stimulation, as well as the shape of the stimulator, etc.

Role of Sonic hedgehog signaling pathway in spinal cord in neuropathic pain in rats / 中华麻醉学杂志

Objective To evaluate the role of Sonic hedgehog (Shh) signaling pathway in the spinal cord in neuropathic pain (NP) in the rats.Methods Seventy-two male Sprague-Dawley rats,aged 8 weeks,weighing 250-300 g,were randomly divided into 2 groups (n=36 each) using a random number table:sham operation group (S group) and NP group.Spared nerve injury was produced by exposing the sciatic nerve and its branches and ligation and transection of tibial nerve and common fibular nerve in anesthetized rats.The mechanical paw withdrawal threshold (MWT) was measured before operation and at 1,4,7,14 and 21 days after operation.After measurement of the pain threshold at 1,4,7,14 and 21 days after operation,the animals were then sacrificed,and the lumbar segment (L46) of the spinal cord was obtained for determination of Shh,Patched (Ptch),Gli1 and glial fibrillary acidic protein (GFAP)expression (by Western blot),Shh,Ptch and Gli1 mRNA expression (by fluorescent quantitative real-time reverse transcriptase-polymerase chain reaction),and Shh and GFAP expression (by immunohistochemistry).Results Compared with group S,the MWT was significantly decreased,and the expression of Shh,Ptch and Gli1 protein and mRNA and GFAP in spinal cord tissues was up-regulated in group NP (P＜ 0.05).Shh was mainly expressed in the cytoplasm of spinal dorsal horn neurons and in the gap around glial cells.Conclusion Shh signaling pathway in spinal cord is involved in the development and maintenance of NP in the rats.

Trends of microalgal biotechnology: a view from bibliometrics / 生物工程学报

Microalgae is a single-cell organism with the characteristics of high light energy utilization rate, fast growth rate, high-value bioactive components and high energy material content. Therefore, microalgae has broad application prospects in food, feed, bioenergy, carbon sequestration, wastewater treatment and other fields. In this article, the microalgae biotechnology development in recent years were fully consulted, through analysis from the literature and patent. The progress of microalgal biotechnology at home and abroad is compared and discussed. Furthermore, the project layout, important achievements and development bottlenecks of microalgae biotechnology in our country were also summarized. At last, future development directions of microalgae biotechnology were discussed.

Changes of basic fibroblast growth factor expression in the spinal cord of rats with spared nerve injury of the sciatic nerve / 南方医科大学学报

<p><b>OBJECTIVE</b>To observe the temporal changes of basic fibroblast growth factor (FGF-2) expression in the spinal cord of a rat model of spared nerve injury (SNI) of the sciatic nerve.</p><p><b>METHODS</b>A total of 100 male SD rats were randomly divided into sham-operated group and SNI group. The paw withdrawal threshold to mechanical stimulation was recorded at 1 day before and at 1, 4, 7, 14 and 28 days after the operation. The expressions of FGF-2, tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in the L4-6 spinal cord segments of the rats were measured at the specified time points.</p><p><b>RESULTS</b>The paw withdrawal threshold began to decline at 1 day after SNI, reached the lowest level at 7 days, and maintained a low level till 28 days (P<0.05). The expression of FGF-2 began to increase significantly on postoperative day 4, reached the peak level on day 14 and maintained the high level till day 28 (P<0.05). The rats with SNI showed significantly higher expressions of TNF-α and IL-6A in the spinal cord than those in the sham-operated group at each time point of measurement (P<0.05).</p><p><b>CONCLUSIONS</b>SNI of the sciatic nerve can induce neuropathic tactile allodynia and causes up-regulation of FGF-2 and inflammatory cytokines in the spinal cord.</p>

Effectiveness of clinical rotation training in pain department for general practitioner and its reflections / 中华医学教育探索杂志

Objective To evaluate the effectiveness of clinical rotation training in pain department for general practitioner.Methods Totally 31 general practitioners of 3 years program in the First Affiliated Hospital of Chongqing Medical University were involved in clinical rotation training in pain department form August 2008 to December 2011.Training lasted for one month.Clinical rotation training in pain department was conducted for general practitioners by studying rules and regulations,treatment methods,imaging data and clinical practice.Evaluation was made according to the treatment,theoretical knowledge,interpersonal skill and professional competency of general practitioners.Measurement data were expressed as mean ± standard deviation ((-x) ± s) while enumeration data were expressed as rate.Descriptive analysis of the data was used.Results Average total number of patients managed by 31 general practitioners was (15 ± 2),average total number of disease species was (5 ±2),average number of case discussion and small lecture participated was 1 ～2,average number of nerve block participated as assistant was (40 ± 5) and average number of minimally invasive surgery visited and studied was (2 ± 2).Residency duties were skillfully completed and assessment score was (85 ± 4.50).Conclusions Through clinical rotation training,general practitioners can understand common disease diagnosis and treatment category; familiarize clinical evaluation methods and master standards of diagnosis and treatment in pain department.Meanwhile,they would learn doctor-patient communication to establish a good therapeutic relationship with patients.

Role of fibroblast growth factor-2 in neuropathic pain in rats / 中华麻醉学杂志

Objective To evaluate the role of fibroblast growth faetor-2 (FGF-2) in neuropathic pain (NP) in rats.Methods One hundred male Sprague-Dawley rats,aged 7 weeks,weighing 200-250 g,were randomly divided into 4 groups (n=25 each): sham operation group (group S),group NP,phosphate buffer solution (PBS) group and FGF-2 antibody group (group Ab).FGF-2 antibody 18 μg (40 μl) was injected intrathecally at 1,6,9,13,16 and 20 days after operation in group Ab,while the equal volume of PBS was injected intrathecally in group PBS.Spinal nerve injury was produced by exposing the sciatic nerve and its branches and ligation and transection of tibial nerve and common fibular nerve.Pain behavior was assessed at 1 day before operation and at 1,4,7,14 and 21 days after operation.The paw withdrawal mechanical threshold (PWMT) was measured.The animals were then sacrificed and the lumbar segment (L4-6) of the spinal cord was obtained for determination of the contents of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in the spinal cord.Results Compared with group S,the PWMT was significantly decreased and the contents of TNF-α and IL-6 in the spinal cord was significantly increased in groups NP,PBS and Ab (P ＜ 0.05).The PWMT was significantly higher and the contents of TNF-α and IL-6 in the spinal cord were significantly lower in group Ab than in groups NP and PBS (P ＜ 0.05).Conclusion FGF-2 is involved in the occurrence and development of NP and induction of the inflammatory response in the rat spinal cord in involved in the mechanism.

The influence of systemic nursing intervention on the quality of life in patients with radical cystectomy and bricker operation / 中华行为医学与脑科学杂志

Objective To investigate the influence of systematic nursing intervention on the quality of life of patients with radical cystectomy and bricker operation.Methods 67 patients with radical cystectomy and bricker operation were randomly divided into control group ( n = 33) and observation group ( n = 34).Control group was routinely cared, while the observation group was cared with systematic nursing intervention by the nurse in charge of work.Then all the patients were surveyed with the core questionnaire of quality of life of cancer patients (QLQ-C30) in 6 months after the operation.Results The scores of global health status, physical function, role function,emotional function,cognitive function and social function of the observation group (64.8 ± 8.7,80.1 ±9.2,67.5 ± 10.1,82.1 ± 11.5,84.6 ± 14.2,66.4 ± 12.5 ) were higher than those of the control group ( 53.3 ±9.4,68.3 ± 8.8,56.5 ± 10.3,68.3 ± 12.2,67.1 ± 10.5,55.3 ± 12.3 ), respectively.The scores of fatigue, nausea and vomiting, insomnia, and appetite loss of the observation group (34.6 ± 8.9,19.4 ± 6.9,27.7 ± 7.6,25.7± 8.4) were lower than those of the control group (44.4 ± 10.3,30.5 ± 7.6,39.8 ± 7.8,34.8 ± 10.1 ), respectively.And the difference was significant (P ＜ 0.05 ).Conclusion The systematic intervention can enhance patients' psychological, physical, and social adaptability, and improve patients' self-care skills and quality of life.

Clinical research on the treatment of 50 cases of bronchial bsthma in the acute attack with Xiaoqinglong decoction combined with western medicine / 国际中医中药杂志

Objective To observe clinical effect of treating bronchial asthma in the acute attack with xiaoqinglong decoction combined with western medicine. Methods 50 patients with bronchial asthma were randomly divided into two groups. The control group was treated with theophylline sustained release tablets, 0.1 g～0.2 g for each time, twice a day,salbutamol sulfate (inhaled), 200 μg (2 spray) for each time, twice a day, beclomethasone dipropionate aerosol (inhaled),100 μg (2 spray) for each time, twice a day, antibiotics, oxygen inhalation when necessary, infusion, and correcting water-electrolyte and acid-base imbalance if necessary. Based on the control group, the treatment group was treated with Xiaoqinglong decoction for continuous 3 courses, once a day, 7 days as a course. The clinical effect and adverse reaction were observed between control group and treatment group after the treatment. Results The total effective rate of the treatment group and the control group was 84.6% and 66.7% respectively. The clinical effect in the treatment group was significantly higher than that of the control group (χ2=2.762, P＜0.05). Conclusion Xiaoqinglong decoction combined with western medicine has better effects bronchial asthma in the acute attack than western medicine.

Expression of tight junctions protein regulator PKC-θ in meningioma tissue / 国际肿瘤学杂志

Objective To study the expression and clinical meaning of tight junctions protein regulator PKC θ in human meningioma tissue.Method The expression of PKC θ in 30 non-invasion and 30 invasion meningioma tissue is tested by using immunohistochemistry S-P method,with the goal of analyzing the relationship between the expression of PKC θ and pathology character.Results The positive rate ofPKC θ in invasion meningioma tissue is obviously lower than in non-invasion meningioma tissue.The difference is significant(P<0.05)Conclusions The lower expression of PKC θ in invasion meningioma tissue pmbably affects occurrence and invasion of the meningioma by ehang4ng the structure and function of TJs.

The clinical analysis of patient controlled epidural analgesia for symptomatic lumbar disc herniation / 重庆医科大学学报

Objective:To evaluate the curative effects of patient controlled epidural analgesia(PCEA)for symptomatic lumbar disc herniation.Methods:Lumbar disc herniation cases(n=98)were divided into two groups.The epidural drugs injection group(DEDI group,n=54)underwent the epidural drugs injection 4 times as one treatment course.The patient controlled epidural analgesia group(PCEA group,n=44)underwent the same treatment,but the first epidural drugs injection was followed by PCEA for 7 days.Evaluate the curative effects and the side effects.Results:VAS scores in both groups decreased significantly on the eighth day and at the end of the treatment,being 4.41?0.62 and 1.30?0.77 in the PCEA group and 5.09?0.88 and 1.65?0.97 in the DEDI group(P0.05).No significant side effect was found during the treatment.Conclusion:PCEA is an effective method of lumbar disc herniation,and it relieves the symptoms and signs more quickly in the early treatment compared with the DEDI.

Effect of Silver Sulfadiazine-impregnated Hydrocolloid Dressing on Wound Care of Nail Extraction / 中华医院感染学杂志

OBJECTIVE To observe the effect of the silver sulfadiazine-impregnated hydrocolloid dressing on the pain of nail extraction wound during dressing change and the healing time of wound. METHODS Forty eight patients with nail extraction were randomly divided into two groups: in the study group,whose wound was covered with silver sulfadiazine-impregnated hydrocolloid dressing;in the control group,whose wound was applied vaseline gauze when the nail had been extracted and the wound was applied antibiotic gauze during dressing change.The pain scores of two groups were compared.Two groups were compared with healing time and the times of dressing change. RESULTS The pain scores in the study group were significantly lower than that of the control group.The healing time of wound and the times of dressing change in the study group were less than that of the control one((P

Nosocomial Infection Administration:An Analysis / 中华医院感染学杂志

OBJECTIVE Learned through the seeing about the infection management of the Japanese Oita Medical University affiliated hospital and analyzed our hospital infection management′s status,to understand the dynamic management of hospital infection.Moreover these suggested that we attach importance to the management of hospital infection and constantly explore new ways of hospital infection management.METHODS According to the comparative presentation of these two hospitals′ awareness and practices of infection management from China and Japan,this paper probed into the direction of our hospital infection management development.RESULTS Hospitals in every country of the world have attached great importance to their infection management,but their specific practices were different.CONCLUSIONS By comparing inspection,every hospital should maintain the individualized characteristics and learn from each others′ strong points to offset their own weakness in order to gain continuous improvement of hospital infection management.

Isolation and Management of Special Infection Patients in General Hospital / 中华医院感染学杂志

OBJECTIVE To norm the isolation and management of special infection patients and eliminate the incidence of hospital infections.METHODS The measures,the implementation of training and personal management,and details of control were determined.RESULTS The system management and isolation measures were implemented to effectively control the incidence of hospital infections.CONCLUSIONS The isolation and control of special infection patients are a systematic and rigorous work,it is very important to form a scientific,complete and easy to implement workflow and management system for the control of hospital infections.