BACKGROUND: Studies have shown that sodium hyaluronate inhibits cartilage damage in osteoarthritis and accelerates regeneration of cartilage cels, to stabilize and repair the articular cartilage.
OBJECTIVE:To investigate the therapeutic effect of sodium-rich plasma combined with platelet-rich plasma (PRP) on rabbit knee osteoarthritis.
METHODS:Forty New Zealand white rabbits were randomly divided into five groups, control group, combined group, sodium hyaluronate group, PRP group and model group, and then an osteoarthritis model of the right knee was made in each rabbit. After modeling, sodium hyaluronate+PRP, sodium hyaluronate, autologous PRP and normal saline were givenviathe knee joint cavity in the latter four groups, respectively, once a week for 5 weeks. The control group received no treatment, as normal controls. At 1 week after treatment, ELISA assay was used to detect serum interleukin-1, interleukin-6, tumor necrosis factor-α levels, and changes of the articular cartilage were observed under a light microscope.
RESULTS AND CONCLUSION:Compared with the control group, the levels of interleukin-1, interleukin-6 and tumor necrosis factor-α were al increased in the other four groups (P < 0.01). Compared with the model group, the levels of interleukin-1, interleukin-6 and tumor necrosis factor-α were lowered significantly in the combined, sodium hyaluronate and PRP groups (P< 0.01 orP< 0.05), and the most significant decline was in the combined group. Articular cartilage damage was severest in the model group and mildest in the combined group. Experimental findings indicate that intra-articular injection of sodium hyaluronate+PRP can reduce inflammation and protect the articular cartilage in knee osteoarthritis, which is better than a single drug injection.

Objective:To investigate the effects of high thoracic epidural anesthesia (HTEA) on the cerebral blood flow (CBF) and hippocampal apoptosis-related proteins Bcl-2 and Bax during global cerebral ischemia and reperfusion (GCI) in rats.Methods:Fifteen-minute global ischemia was established by 4-vessel occlusion and epidural catheterization was performed through T4-5 intervertebral spaces in adult male Wistar rats.According to the different drugs infused into the epidural space,the rats were randomly divided into four groups:Sham group (0.9 ％ NaC1),Sham-HTEA group (0.25 ％ bupivacaine),GCI group (global cerebral ischemia,0.9 ％ NaC1) and HTEA group (global cerebral ischemia,0.25 ％ bupivacaine).And 0.25 ％bupivacaine or 0.9 ％ saline (20 μL·h-1) was infused continuously to the thoracic epidural space from 15 minutes before ischemia to 24 hours after reperfusion.Mean arterial pressure (MAP),heart rate (HR) and cerebral blood flow (CBF) were determined until 2 hours after reperfusion,and the hippocampal Bcl-2 and Bax proteins at 24 hours after reperfusion were examined by Western-blot.Results:Compared with the GCI group,HTEA group has no significant difference on MAP and HR during ischemia and 2 hours after reperfusion,andcompared with the Sham group,MAP in GCI group increased in ischemia 0 min and decreased in reperfusion 0 min.The CBF in HTEA group was significantly lower than that in GCI group (123.1％± 35.2％ vs 177.5％± 32.4％,P＜0.01) in reperfusion 10 min,and higher than that in GCI group during the hypoperfusion of 60 to 120 minutes after reperfusion (P＜0.05),and the ratio of Bax/Bcl-2 in hippocampus was significantly decreased in HTEA group 24 hours after reperfusion (P＜0.01).Conclusions:Continuous HTEA infusion of 0.25 ％ bupivacaine 20 μL ·h-1 could maintain the hemodynamic stability,and improve the CBF of hypoperfusion period in rats,as well as reduce the ratio of Bax/Bcl-2 at 24 hours after reperfusion.

Aim To provide references for clinical trials dose and rational drug use by evaluating mitochondrial toxicity of bentysrepinine on HepG2 cells.Methods Mitochondrial toxicity of bentysrepinine on HepG2 cells was cmomprehensively evaluated by measuring proliferation inhibition rate, lactic acid content in culture supernatant, reactive oxygen species(ROS) content, mitochondrial membrane potential (MMP) variation and the activity of mitochondrial respiratory chain complex enzymes Ⅰ to Ⅳ.Results The half inhibitory concentration of bentysrepinine of HepG2 cells was 359 μmol·L-1.Compared with the control group, bentysrepinine could reduce the MMP, raise the level of lactic acid, increase the content of ROS and lower the activity of mitochondrial respiratory chain complex enzymes Ⅰ to Ⅲ with the concentration of 400 μmol·L-1(196 mg·L-1), showing an obvious mitochondrial toxicity.Compared with lamivudine and adefovir dipivoxil, bentysrepinine exerted no influence on indexes above with the same concentration 100 μmol·L-1.Conclusions Bentysrepinine shows an obvious mitochondrial toxicity on HepG2 cells with the concentration of 400 μmol·L-1.This mitochondrial toxicity is not presented with the concentration of 200 μmol·L-1.It shows that the safety range of bentysrepinine about mitochondrial toxicity is relatively wide.The test plays a guiding role in clinical trial dose design as well as clinical treatment.

Objective To compare the clinical efficacy of herbal ion application and penetration therapy applied in the dog days, or in both of the dog days and coldest days for the treatment of recurrent respiratory tract infection (RRTI) in children. Methods This intervention was designed as a multi-center, randomized, single-blind, repeated-measurement design. A total of 240 RRTI children were randomly divided into Sanfu group (N=120, herbal ion application and penetration therapy applied in the dog days) and Fujiu group (N=120, herbal ion application and penetration therapy applied in both of the dog days and coldest days). Each group was treated for one year and then was followed up for one year. Before and after the treatment, we observed the frequency of respiratory tract infection, the period of onset, signs and symptoms of traditional Chinese medicine (TCM), and detected the salivary secretory immunoglobulin A (sIgA) at different time points. Results (1) The therapeutic effect of Fujiu group was better than that of Sanfu group, and the difference was significant (P<0.05). (2) The frequency of respiratory tract infection was reduced, the period of onset was shortened, and TCM signs and symptoms were improved in both groups, and the effect of Fujiu group was superior to that of Sanfu group (P<0.05). (3) Salivary sIgA showed a continuous upward trend in Fujiu group while a mild downward trend in Sanfu group at different time points (P<0.05). Conclusion Herbal ion application and penetration therapy applied in both of the dog days and coldest days shows better effect for the treatment of children RRTI than that applied only in the dog days.

Objective To study the effect of new figure pattern on the cardiopulmonary resuscitation (CPR) training for the new medical staff.Methods The keys of 2010 CPR were changed into figure pattern,and totals of 172 new medical staff were received the new training.They were assessed with questionnaire before and after the training on first-aid knowledge and skills.Results The average score of operation of new medical staff was significantly lower than that after the training [(56.88 ± 8.926) vs (96.20 ± 2.89),t =23.35,P ＜0.05],as well as the knowledge awareness rate (52％ vs 92.6％).Conclusions Compared to the traditional training model,the new training model made medical staff pay attention on every details and key data,and make sure the precise of practice in position,depth,dynamics and frequency.

Objective To compare and the advantages and disadvantages of 3 methods of bone grafting in the posterior treatment of thoracolumbar burst fracture.Methods A retrospective analysis was conducted of 258 thoracolumbar burst fractures treated with posterior short-segment fixation from March 2013 to March 2015 at Orthopedic Department One,Foshan Hospital of Traditional Chinese Medicine.Of them,87 were treated with transpedicular bone grafting (group A),87 with laminar and intertransverse process bone grafting (group B) and 84 with small joint turnover plus bone grafting (group C).The 3 groups were compared in terms of cobb angle,loss of correction,bony fusion,internal fixation failure,and Oswestry disability index (ODI).Results The 3 groups were comparable due to insignificant differences in the preoperative general data between them (P ＞ 0.05).The cobb angles in the 3 groups at one week after operation (4.9° ± 1.0°,4.8° ± 0.6° and 4.8° ± 0.6°) and at the final follow-up (6.1 o ± 1.5°,14.5° ± 3.7° and 15.3° ± 4.1 °) were significantly smaller than those before operation (27.5° ± 4.9°,27.6° ± 4.6° and 27.6° ± 4.2°) (P ＜ 0.05).The cobb angles in groups B and C at the final follow-up were significantly larger than those at one week after operation (P ＜0.05).At the final follow-up,both the cob angles and the loss of kyphoplasty correction in groups B and C were significantly larger than in group A (P ＜ 0.05).The fusion rate in group A (100％) was significantly larger than in group B (80.5％) and C (76.2％).There were no significant differences between the 3 groups in the rate of internal fixation failure (0,1.1％ and 2.4％) (x2 =2.108,P=0.348).The ODI for the 3 groups at 6 months after operation (28.5 ± 4.1,28.7 ± 3.9 and 28.8 ± 3.7) and at the final follow-up (10.7 ± 2.6,11.0 ± 2.7 and 11.4 ± 3.1) were all significantly lower than the preoperative values (94.3 ± 0.7,94.4 ± 0.9 and 94.4 ± 0.8) (P ＜ 0.001).In all the patients,the ODI at the final follow-up was significantly lower than that at 6 months after operation(P ＜ 0.001).Conclusions In the treatment of thoracolumbar burst fractures,all the posterior approach plus transpedicular bone grafting,posterolateral bone grafting and reversed bone grafting plus short segmental internal fixation can effectively restore vertebral height and result in a high rate of fusion.Although the latter 2 methods of bone grafting are effective,they may be disadvantageous in leading to long-term loss of vertebral height and kyphosis correction.

Objective:To evaluate the safety and feasibility of endovascular recanalization for non-acute internal carotid artery occlusion (NA-ICAO), and to propose a new angiographic classification.Methods:From April 2015 to October 2019, 95 consecutive patients with symptomatic NA-ICAO who received endovascular recanalization were retrospectively analyzed in Beijing Tiantan Hospital, Capital Medical University. All the patients were divided into four groups according to DSA: type Ⅰ, petrous segments were distally reconstituted by collateral vessels; type Ⅱ, cavernous segments were distally reconstituted by collateral vessels; type Ⅲ, ophthalmic segments were distally reconstituted by collateral vessels; type Ⅳ, communicating segments were distally reconstituted by collateral vessels. Study data including clinical characteristics, surgical details, lesion classification, recanalization rate and perioperative complications. For the counting data, the χ 2 test was used to compare between groups. For the quantitative data, the ANOVA was used for the normal distribution data, otherwise the Kruskal-Wallis H test was used. The primary safety outcome was any stroke or death within 30 days. Results:Among the 95 patients, 67 (70.53%) had successful recanalization. The recanalization rates of type Ⅰ－Ⅳ were 92.31% (36/39), 81.82% (18/22), 47.83% (11/23) and 18.18% (2/11) respectively (χ2=29.557, P<0.001). And the complication rates of the four types were 5.13% (2/39), 13.64% (3/22), 21.74% (5/23) and 9.10% (1/11) respectively. The incidence of perioperative ischemic stroke was 2.11% (2/95). No other serious stroke and death occurred. Conclusions:Endovascular recanalization may be feasible and safe for carefully selected patients with NA-ICAO and therefore represents an alternative treatment. The patients with type Ⅰ and Ⅱ lesions had higher recanalization rates, while the patients with type Ⅳ lesions had significantly lower recalculation rate. The new angiographic classification is conducive to the selection of suitable patients and difficulty in grading.

OBJECTIVETo Assess therapeutic effect of ear point taping and pressing therapy combined with acupoint-injection on residual neuralgia of herpes zoster.

METHODSOne hundred and sixteen cases were randomly divided into a comprehensive group (n = 60) and a medication group (n = 56). The medication group were treated with routine western medicine, and the comprehensive group with ear point taping and pressing therapy combined with acupoint-injection besides the routine western medicine. Auricular points selected for ear point taping and pressing were Shemen, Neifenmi (endorine), Pizhixia (subcortex), Gan (liver), Dan (gallbladder), Fei (lung) and corresponding auricular points to the lesion parts, with the two ears alternatively used, pressing each day; points selected for point-injection of VitB12 were Zusanli (ST 36), Neiguan (PC 6), Quchi (LI 11), Taichong (LR 3). The pain degrees, the time of pain alleviation and pain ceasing of the patient were regularly recorded.

RESULTSThe average time of pain alleviation and pain ceasing of the patient in the comprehensive group were significantly shorter than those in the medication group (P < 0.01). The cured rate and the cured and markedly effective rate were 60.0% and 83.3% in the comprehensive group, and 28.6% and 50.0% in the medication group, with significant difference between the two groups (P < 0.05).

CONCLUSIONEar point taping and pressing therapy combined with acupoint-injection is effective and safe for treatment of residual neuralgia of herpes zoster.

Acupuncture Points ; Acupuncture, Ear ; methods ; Adult ; Aged ; Female ; Humans ; Injections ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Neuralgia, Postherpetic ; therapy

OBJECTIVETo evaluate the long-term therapeutic effect and histologic result of ADM combined with autologous thin split-thickness skin graft.

METHODS23 patients were treated with acellular dermal matrix (ADM) combined with autologous thin split-thickness skin graft. The patients were followed up at 3, 6, 12, and 18 months after operation. The histological analysis was also performed.

RESULTS3, 6, 12, 18 months after operation, the composite skin grafts became smooth with no hypertrophic scar and hyperpigmentation. It was soft and elastic. The joints could move randomly. The histologic study showed the composite skin graft had a similar appearance as the normal skin.

CONCLUSIONAs for the treatment of wound, the composite skin graft with ADM is smooth and soft with good elasticity after transplantation, but it has no perspiration.

Adolescent ; Adult ; Child ; Child, Preschool ; Dermis ; transplantation ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Skin Transplantation ; methods ; Skin, Artificial ; Transplantation, Autologous ; Young Adult

OBJECTIVETo examine the expression of CEACAM-land CXCL-14 in the different stages of infantile hemangioma and to explore the role of CEACAM-1 and CXCL-14 in the occurrence and development of infantile hemangioma.

METHODSThe expression of CEACAM-1 and CXCL-14 was detected by immunohistochemical technique and Western Blot in cases of proliferating hemangiomas, involuting hemangiomas, involuted hemangiomas. The mean optical density was measured by image analysis system.

RESULTSThe expression of CEACAM-1 in early stage of proliferating hemangiomas was weak or negative, while it was strong in involuting hemangiomas and positive in the involuted stage. The differences between different stages had a statistically significance (P < 0.05). The expression of CXCL-14 was weak or negative in stage of proliferating hemangiomas, positive in involuting hemangiomas and strong in the involuted stage. The differences between different stages had a statistically significance (P < 0.05).

CONCLUSIONSCEACAM-1 and CXCL-14 are involved in the occurrence and development of infantile hemangioma.

Antigens, CD ; metabolism ; Cell Adhesion Molecules ; metabolism ; Chemokines, CXC ; metabolism ; Child ; Child, Preschool ; Female ; Hemangioma ; metabolism ; pathology ; Humans ; Infant ; Male