Objective: To study the protective effects of tetrahydropalmatine (THP) against ischemia－reperfusion induced hippocamp lesion in rats. 　MethodS: A model of ischemia-reperfusion induced brain lesion was set up by ligation of common carotid arteria in rats, and the protective effects of THP was observed.　Results: It was found that, with administration of THP, the activities of superoxide dismutase (SOD), glutathione peroxidase (GSHPx) and Na+, K+-ATPase as well as Ca2＋－ATPase were increased (P＜0.05, respectively), while malondialehyde (MDA) was decreased to 42.5% (P＜0.01) during brain ischemia－reperfusion.　Conclusion:The results suggested that THP can protect the rat against ischemia－reperfusion induced brain lesion.

Objective To investigate the influence of alprostadil on renal function,oxidative stress,and immune function in early diabetic nephropathy patients.Methods Eighty-six cases of early diabetic nephropathy patients in our hospital during April 2013 to January 2016 were chosen as research subjects,all patients were divided into observation (n =43) and control (n =43) groups according to random data form.Patients in observation group received alprostadil combined with pioglitazone treatment and those in control group received pioglitazone treatment only,both lasted for one month.Before treatment,one month after treatment,renal function indices were detected;serum oxidative stress indices were detected by automatic biochemical analyzer;T lymphocyte subsets in peripheral blood were measured by flow cytometry.Results Before treatment,there were no significant differences in renal function,oxidative stress,immune function between two groups (P ＞ 0.05).One month after treatment,peripheral blood renal function indices such as blood urea nitrogen (BUN),estimated glomerular filtration rate (eGFR),and cystatin C (CysC) levels were lower in observation group than in control group,the level of serum albumin (Alb) was higher in observation group than in control group,the difference was statistically significant (P ＜ 0.05);semm oxidation indices malondialdehyde (MDA),and advanced oxidation protein products (AOPP) were lower in observation group than in control group,human antioxidant indices such as superoxide dismutase (SOD),and total antioxidant capacity (T-AOC) were higher in observation group than in control group,the difference was statistically significant (P ＜ 0.05);peripheral blood CD3 +,CD4 + T lymphocytes and the ratio of CD4 +/CD8 + were higher in observation group than in control group,CD8 +T lymphocyte level was lower in observation group than in control group,the difference was statistically significant (P ＜ 0.05).Conclusions Alprostadil can optimize the renal function and immune function in early diabetic nephropathy patients,reduce the degree of oxidative stress.

BACKGROUND:Lumbar spine MRI and electrophysiological test are reliable methods for evaluating nerve root injury caused by lumbar disc herniation.
OBJECTIVE:To analyze the correlation between the MRI-based grading system and the latency and frequency of F wave as wel as latency and amplitude of H-reflex in patients with lumbar disc herniation.
METHODS:MRI imaging of the lumbar spine was performed with a 3.0-T imager and a dedicated TCL coil to classify lumbar disc herniation and nerve root compression. F wave and H reflex were detected on the patient bilateral tibial nerves using Oxford myoelectricity evoked potential instrument.
RESULTS AND CONCLUSION:Spearman correlation analysis showed that the MRI-based grading of patients with lumbar disc herniation had a negative correlation with F wave frequency (r=-0.594 0, P<0.000 1), and a positive correlation with F wave latency (r=0.825 6, P<0.000 1) and H-reflex latency (r=0.875 0, P<0.000 1), but no correlation with H-reflex amplitude (R=0.117 4, P=0.257 3). With MRI grading increased, F wave frequency was decreased, and F wave and H-reflex latency were prolonged gradual y, indicating aggravating nerve root compression.

Objective To analyze and compare the clinical application values of procalcitonin (PCT),leukocyte count (WBC) and C-reactive protein(CRP) in elder patients with infection.Methods In patients(age≥ 65 yrs,axillary temperature ＞38.0℃)with infection or suspected infection,PCT,WBC,CRP and other bacteriological examination were performed.The electronic medical records from the HIS system of our hospital were analyzed retrospectively in combination with medical history.Results Of the enrolled 219 patients,65 ones were in control group,48 ones SIRS,51 ones sepsis and 55 ones MODS.There was a positive correlation between the level of serum PCT and the infection degree.The Spearman correlation coefficient was 0.706 (95％CI:0.616-0.797,P=0.000).Based on the highest Youden index (sensitivity+specificity-1),the best cutoff point of diagnosis for PCT was ＞0.341 μg/L (sensitivity 84.5％,specificity 55.8％),a analysis of receiver operating characteristic(ROC) curve about PCT,WBC and CRP was carried.Area under the curve (AUC) of PCT to controlled infection was 0.916 (95％CI:0.864-0.967,P=0.000).Based on the highest Youden index (sensitivity+ specificity-1),the judging threshold of PCT to infection controlled or not was 0.73 μg/L (sensitivity 84.6％,specificity 88.0％).PCT level after treatment ＞0.73 μg/L showed the uncontrolled infection,＜ 0.73 μg/L controlled.Conclusions PCT has a higher specificity for elder patients with infection.The variation of PCT level can guide the application of antibiotics,avoid abuse and decrease the occurrence of drug-resistant bacteria.

Objective To observe the expression of cardiotrophin-1(CT-1) in ischemia-reinfusion cardiac muscle of rats and the effect of neuregulin-1(NRG-1).Methods The model of ischemia-reinfusion cardiac muscle of rats were prepared,35 rats were randomly divided into 4 groups:model group(n=8),NRG-1 pretreatment group(n=9),pseudo-surgery group(n=8) and normal control group(n=10).The CT-1 mRNA in the observed cardiac muscle of all groups was measured by RT-PCR and the relative amount of CT-1 mRNA were calculated,and for statistical treatment.Results The CT-1 mRNA of model group was(63.96?9.34),and it was higher than that of pseudo-surgery group(36.16?5.43)and normal control group(36.84?4.64).The significant differences were found in 3 groups(F=47.37 P

BACKGROUND: Exercise has been proved to accelerate the proliferation of intervertebral disc cells and extracellular matrix production in healthy rats. For the degenerative intervertebral disc, whether exercise also has positive effects on its cell proliferation, extracellular matrix production or pain relief remains unclear. OBJECTIVE: To investigate the effect of exercise on the extracellular matrix production in a rat model of intervertebral disc degeneration.METHODS: A rat model of intervertebral disc degeneration was prepared by Freund's complete adjuvant injection into the intervertebral disc at L5-6 levels. Then, the model rats were allowed to have a rest for 2 weeks. All rats were then randomly divided into exercise and control groups. Rats in the exercise group were forced to run every day, while the controls allowed free activities in the cage. The behavioral tests were performed at 7, 14, 28, 42, 56 and 70 days after modeling; meanwhile, the intervertebral disc samples were collected used for alcian blue staining and immunohistochemical staining to detect the levels of proteoglycan, aggrecan and collagen type Ⅱ in the intervertebral disc cells, respectively.RESULTS AND CONCLUSION: Vocalization threshold on the rat back of punctured disc was significantly decreased, while grooming and wet-dog shaking were significantly increased at 7 days after modeling compared with the baseline (P < 0.05), suggesting that Freund's complete adjuvant injection successfully induces disc degeneration, hyperalgesia and abnormal behaviors. Further, the vocalization threshold and wet-dog shaking in the exercise group showed significant improvement compared with the control group after 14 days of exercise (P < 0.05), while the grooming was significantly reduced until the 28th day (P < 0.01), indicating that exercise can alleviate pain caused by disc degeneration in model rats. At 21 days after modeling, the levels of proteoglycan, aggrecan and collagen type Ⅱ in the nucleus pulposus and annulus fibrosus were significantly decreased compared with the baseline (P < 0.01), indicating the occurrence of disc degeneration. After 14 days of training, the levels of proteoglycan, aggrecan, and collagen type Ⅱ in the nucleus pulposus and annulus fibrosus in the exercise group were significantly increased compared with the control group (P < 0.01). Moreover, after 8-week exercise, the level of proteoglycan in the nucleus pulposus and annulus fibrosus in the exercise group was increased by 4-5 times compared with the control group, and levels of aggrecan and collagen type Ⅱ in the nucleus pulposus in the exercise group also was increased by 3-4 times compared with the control group. To conclude, exercise can promote extracellular matrix increased by production by increasing the levels of proteoglycan, aggrecan, and collagen type II in the degenerative intervertebral disc.

OBJECTIVETo evaluate the effectiveness of manual therapy and traction for lumbar disc herniation and analyze the current status of this kind of randomized clinical trial (RCT).

METHODSDatabase of CNKI, VIP, WANFANG, PubMed and OVID were searched. Some relevant journals were manually retrieved. A total of 2 874 literatures on manual therapy and traction for lumbar disc herniation were collected, of which 17 articles met the inclusion criteria. The Jadad score scale was used to evaluate the quality,and RevMan5.0 was used for meta-analysis of literatures.

RESULTSThe results of the meta-analysis of all trials involved were as followed:the combined effect of the effective rate was RR = 1.10, 95% CI [1.06, 1.14], the combined effect of the cure rate was RR = 1.36, 95% CI [1.21,1.52], the combined effect of the VAS was RR = 1.37, 95% CI [1.28, 1.45], the combined effect of the JOA was RR = 4.75, 95% CI [4.40, 5.09].

CONCLUSIONThe overall quality of the current RCT researches about manual therapy for lumbar disc herniation was lower,and did not support the conclusion that manual therapy was more effective than traction for lumbar disc herniation.

Humans ; Intervertebral Disc Displacement ; surgery ; therapy ; Lumbar Vertebrae ; surgery ; Musculoskeletal Manipulations ; methods ; Randomized Controlled Trials as Topic ; Traction ; methods

BACKGROUND:Microencapsulated cels are commonly used as a tool to overcome immune rejection after subarachnoid transplantation. However, the effect of microencapsulation on the secretion of human pheochromocytoma cels is unclear.
OBJECTIVE:To observe the growth and secretion of primarily microencapsulated cultured human pheochromocytoma cels in artificial cerebrospinal fluid.
METHODS: The human pheochromocytoma tissues were digested successively to isolate human pheochromocytoma cels that were then cultured in artificial cerebrospinal fluid. Primary cels were covered with alginate-polylysine-alginate microcapsules, and then the cel morphology was observed with inverted phase contrast microscope. Levels of met-enkephalin and norepinephrine in cel culture medium were detected by enzyme-labeled immunosorbent assay (ELISA). We used cel counting kit-8 colorimetric assay to obtain the growth curve of human pheochromocytoma cels in artificial cerebrospinal fluid.
RESULTS AND CONCLUSION:Microcapsulated human pheochromocytoma cels were in suspension and the process outgrowth increased slowly. Compared with non-microcapsulated cels, the proliferation rate of microcapsulated cels increased significantly. ELISA results revealed a significant increase in the levels of met-enkephalin and norepinephrine secreted from the microencapsulated cels compared to the non-microcapsule group. There was a wide variation in contents of met-enkephalin and norepinephrine from different tumors. These findings indicate that microencapsulated human pheochromocytoma cels can survive wel and have good secretion function in artificial cerebrospinal fluid, and human pheochromocytoma cels from different tumor tissues have stable secretory function.

Objective To evaluate the difference of internal diameter of bronchial artery in big lung cancer,small lung cancer,and normal lung with multiple slice CT.Methods MSCT angiographies of 44 patients with lung cancer confirmed by pathology were retrospectively analyzed,and 29 patients were with big lung cancer(≥3 cm)and 15 patients with small lung cancer(

The chemical constituents isolated from Desmodium species (Leguminosae) included terpenoids, flavonoids, steroids, alkaloids compounds. Modem pharmacological studies have showed that the Desmodium species have antioxidant, antibacterial, anti-inflammatory, hepatoprotective, diuretic, antipyretic, analgesic and choleretic activity. This article mainly has reviewed the research advances of chemical constituents and biological activities of Desmodium species since 2003.
Animals ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Fabaceae ; chemistry ; Humans