ObjectiveTo explore the possible mechanisms of Shujin Jiannao Formula （舒筋健脑方） for cerebral palsy. MethodsThirty 7-day-old SD rats were randomly divided into normal group， model group， and Shujin Jiannao Formula group， with 10 rats in each group. The model group and Shujin Jiannao Formula group established a cerebral palsy model by the classic Rice-Vannucci method. After successful modeling， rats in Shujin Jiannao Formula group were given Shujin Jiannao Formula 16 g/（kg·d） by gavage， while the normal group and model group were given normal saline 10 ml/（kg·d） by gavage once a day. After one week of intervention， the rats' body weight was measured， and Zea-Longa scores， the righting reflex test， and the hindlimb suspension test were conducted for assessment； hematoxylin-eosin （HE） staining and Nissl staining were used to observe pathological changes in brain tissue， and the number of Nissl-positive neurons was counted； enzyme-linked immunosorbent assay （ELISA） was employed to measure levels of inflammatory cytokines in the brain tissue， specifically interleukin-1β （IL-1β） and tumor necrosis factor-α （TNF-α）； immunofluorescence was used to detect the expression levels of neurofilament protein 200 （NF200） and myelin basic protein （MBP） in brain tissue； Western Blot analysis was conducted to determine the protein levels of phosphoinositide 3-kinase （PI3K）， protein kinase B （Akt/PKB/Rac）， and mammalian target of rapamycin （mTOR） in brain tissue. ResultsCompared with the normal group， rats in the model group showed significantly higher Zea-Longa scores and lower scores in the hindlimb suspension test （P＜0.01）； pathological findings revealed loose structure in the cerebral cortex， hippocampal atrophy， and neuronal damage in brain tissue. Levels of IL-1β and TNF-α elevated， and the number of Nissl-stained positive neurons in the cortex and hippocampal CA1 region reduced， and immunofluorescence intensity of NF200 and MBP， as well as protein expression levels of PI3K and mTOR， significantly decreased （P＜0.05 or P＜0.01）. Compared with the model group， rats in Shujin Jiannao Formula group showed decreased Zea-Longa scores and increased hindlimb suspension test scores （P＜0.05）； pathological damage in brain tissue alleviated， levels of IL-1β and TNF-α reduced， the number of Nissl-stained positive neurons in the cortex and hippocampal CA1 region increased， and the immunofluorescence intensity of NF200 and MBP， as well as the protein levels of PI3K and mTOR， significantly elevated （P＜0.05 or P＜0.01）. There were no statistically significant differences among the groups in body weight， body-turning time， or AKT protein levels in brain tissue （P＞0.05）. ConclusionShujin Jiannao Formula can improve the neurological function of rats with cerebral palsy， exert neurorestorative effects， and its mechanism of action may be related to the reduction of inflammatory response in brain tissue and the activation of the PI3K/AKT/mTOR signaling pathway.

Objective: To investigate the relationship between urinary monohydroxylated metabolites of hydroxyl polycyclic aromatic hydrocarbons (OH-PAHs) and lung function, as well as the role of oxidative stress in these associations, so as to provide a scientific basis for air pollution control and policy formulation. Methods: A panel study was carried out among 45 young healthy adults. Four follow up surveys and health examinations were conducted from November 2017 to October 2018 to measure lung function parameters [forced vital capacity (FVC), second forced expiratory volume in one second (FEV1), peak expiratory flow (PEF), FEV1/FVC, and forced expiratory flow between 25% and 75% vital capacity (FEF 25%~75% )], markers of exposure to 7OHPAHs [∑ 7OH PAHs], and markers of oxidative stress[8 hydroxy 2 deoxyguanosine (8 OHdG) and 8 isoprostaglandin F 2α (8 iso PGF 2α )]. The relationship between urinary PAH metabolites and lung function was quantified by linear mixed effects models. Mediation analysis was performed to assess the role of oxidative stress in the relationship between OH PAHs and lung function. Results: The median values of FVC, FEV1, FEVI/FVC, PEF, and FEF 25%-75% were 4.37 L, 3.58 L, 83.00%, 4.38 L/s, and 3.32 L/s, respectively. The results showed that each 1 unit increase in log transformed value of 2 Hydroxyfluorene (2 OHFlu) was associated with a 5.05% decrease ( β %=-5.05%，95% CI =-8.85%--1.09%) in FVC, 4.15% decrease ( β %=-4.15%，95% CI =-7.94%- -0.22% ) in FEV1 and 5.87% decrease ( β %=-5.87%，95% CI =-11.35%--0.05%) in FEF 25%-75% , respectively. Each 1 unit increase in log transformed values of 2 OHFlu and 9 Phenanthrol (9 OHPhe) was associated with a 7.03% decrease ( β %=-7.03%，95% CI =-12.60%--1.11%) and a 7.08% decrease ( β%=-7.08%，95% CI =-13.50%--0.17%) in PEF, respectively. Additionally, urinary ∑ 7OH PAHs had a positive correlation with the levels of urinary 8 OHdG and 8 iso PGF 2α ( r =0.64, 0.69, P <0.01). Meanwhile, the levels of 8 OHdG mediated 17.06% and 15.71% of the association between 2 OHFlu with FVC and FEV1. Conclusion The finding reveales a negative relationship between urinary OH PAHs and lung function among young healthy adults. The 8 OHdG plays a mediated role in the correlation of 2 OHFlu with FVC and FEV1. Active relevant policies are needed to control air pollution and maintain the healthy living conditions of young people.

Objective: To explore the association between urinary metals and lung function among college students, and to provide a theoretical basis for related research on metal exposure and lung function injury. Methods: A total of 45 healthy college students were recruited from North China University of Science and Technology in Caofeidian between 2017-2018. During the four seasons, information was obtained from questionnaires and physical examinations, lung function parameters were assessed, including FVC, FEV1, PEF, FEV1/FVC and FEF 25-75 , and morning urine samples were collected simultaneously. The urinary levels of 15 metals were measured by inductively coupled plasma mass spectrometry (ICP/MS); a Kruskal Wallis H test was used to compare differences in urinary metals during the four seasons; and a mixed effect model was used to assess correlations between urinary metals and lung function. Results: There were significant differences in the levels of urinary chromium, iron, nickel, copper, zinc, arsenic, selenium, selenium, molybdenum, cadmium, antimony and lead from 15 metals over the four seasons ( H =9.79- 20.61 , P <0.05). The differences observed in five lung function parameters over the four seasons were statistically significant ( F =61.72, 45.30, 47.61, 25.47, 35.13, P <0.05). The linear mixed effect model analysis showed that urinary concentrations of vanadium, manganese, iron, cobalt, nickel and antimony were negatively correlated with FEV1( B =0.202, 0.192, 0.181, 0.154, 0.131 , 0.283); urinary concentrations of aluminum, vanadium, manganese, iron, cobalt, nickel, zinc, cadmium, and antimony were negatively correlated with FVC ( B =0.252, 0.290, 0.292, 0.271, 0.201, 0.180, 0.171, 0.163, 0.381); urinary concentrations of manganese and antimony were negatively correlated with PEF ( B =0.291, 0.354)( P <0.05). Conclusion The increase of multiple metal concentrations among college students was related to lung function decline, the long term metal exposure might lead to lung function damage. So environmental metal pollution should be controlled.

Objective To comparemodified bone cement injection sleeve (front end closed,unilateral opening) and traditional straight push bone cement sleeve in percutaneous vertebral plasty (PVP) for clinical application.Methods From January 2015 to June 2016,78 patients with PVP indications of single osteoporotic vertebral compression fracture (OVCF) were randomly divided into a study group and a control group (39 patients for each group),and both groups received PVP under DSA.Intraoperative X-ray exposure dose,surgical duration,postoperative bone cement leakage,VAS score (preoperative and postoperative 3 days and 6 months),and refracture rate after half a year and postoperative bone cement distribution were compared between the two groups.Results Both groups received a follow-up for 6 to 12 months.5 patients had paravertebralleakage in the study group,while 9 patients developed paravertebralleakage and orie patient had anterior leakage in the control group.No neurologic and vascular injury occurred,no pulmonary embolism and other serious complications developed.The patients in both groups were followed up for half a year without re-fracture.The radiation dose and surgical duration in the two groups were statistically significant (P＜0.05).Bone cement injection and postoperative VAS scoresdid not differ obviously between the two groups (P＞0.05),There was no significant difference between the two groups in distribution of bone cement (P＞0.05).The bone cement leakage rate was lower in the study group than in the control group,with a statistical significance (P＜0.05).Conclusions The improvement in bone cement injection sleeve can shorten surgical duration,reduce intraoperative X-ray exposure,and decrease the rate of leakage of bone cement.It is worth popularizing clinically.

A 46-year-old male patient developed scatterred reddish-brown plaques and nodules on the back 6 years prior to the presentation. Then, the lesions gradually spread to the axillary fossa and protothorax, and became indurated with slight itching in winter. Laboratory examination revealed hypergammaglobulinemia. Computed tomography(CT)scan showed multiple nodular or patchy shadows in both lungs, lymphadenectasis in axillary, mediastinal and inguinal regions, and spleen enlargement. Histopathological examination of skin lesions showed granulomatous infiltrates with plenty of lymphocytes, histiocytes and mature plasma cells in the middle and lower dermis with the presence of lymphoid follicle-like structures, but no cell atypia was observed. Immunohistochemical study showed positive staining for CD38, CD138, CD79a, κ and λ light chains. According to clinical manifestations and laboratory examination results, the patient was diagnosed with cutaneous and systemic plasmacytosis.

BACKGROUND:Short-segment pedicle screw technology has been extensively used in the treatment and repair of thoracolumbar burst fractures. The technique of operative treatment through the paraspinal muscle approach has advantages such as less trauma and bleeding, and rapid recovery. However, it requires further investigations to verify the superiority of the paraspinal muscle approach of two lateral incisions near the posterior median line. OBJECTIVE:To evaluate the clinical efficacy and Cobb’s angle of short-segment pedicle screw fixation through paraspinal muscle approach of two lateral incisions near the posterior median line in the treatment of thoracic and lumbar fractures. METHODS:From September 2010 to June 2012, 56 patients with thoracic and lumbar fractures were included in the retrospective study, including 42 males and14 females, with an average of 45 years (range 18-59 years). According to the surgical approach, patients were divided into two groups, traditional approach (n=25) and paraspinal muscle approach (n=31). The operative time, intraoperative blood loss, postoperative drainage and postoperative ambulant time in the two groups were observed and compared. The visual analog scale scores at 7 days, 1 month and 6 months postoperatively were recorded. The Cobb’s angles of suffered vertebra were measured preoperatively and at 7 days and 6 months postoperatively. RESULTS AND CONCLUSION:Al patients were fol owed up after internal fixation. The paraspinal muscle approach was superior to traditional approach in the operation time, intraoperative blood loss, postoperative drainage and postoperative ambulant time, and visual analog scale scores at 7 days and 1 month postoperatively (P<0.05). There was no significant difference between the preoperative and postoperative Cobb’s angle in the two groups (P>0.05). The short-segment pedicle screw fixation through paraspinal muscle approach of two lateral incisions near the posterior median line in the treatment of thoracic and lumbar fractures, is an effective and minimal y invasive treatment, with less trauma, less bleeding, rapid recovery, and simple operations. Similar to open surgery, this treatment can recover the anatomical morphology and reconstruct spinal stability, and had good biocompatibility to the host.

Objective To compare the potentiality of opa typing versus Neisseria gonorrhoeae multi-antigen sequence typing (Ng-MAST) in discrimination of N. gonorrhoeae isolates, and to investigate the consistency of genotypes of N. gonorrhoeae between patients and their sex partners. Methods N. gonor-rhoeae was isolated from patients and their sex partners who attended sexually transmitted disease clinics of the Affiliated Union Hospital of Tongji Medical College, Huazhong University of Science and Technology from February 2006 to August 2007. All isolates were cultured on Thayer-Martin agar and GC-based choco-late agar, and identified by Gram stain and oxidase reaction. Totally, twenty-four strains of N. gonorrhoeae were isolated form 12 pairs of male-female sex partners. Genomic DNA was isolated from the strains, and subjected to PCR amplification of opa gene as well as pot and tbpB genes, opa typing and Ng-MAST typing were utilized to differentiate the 24 strains respectively. Results The 24 isolates were classified into 10 sequence types (ST) by Ng-MAST typing, and 12 opa types (OT) by opa typing. A novel genotype identi-fied by Ng-MAST (217-86% homologisation 178), was unique in China. Conclusions Both ST and OT of N. gonorrhoeae strains are identical between patients and their corresponding partners except for one pair of partners, 45/46, suggesting that gonorrhea is transmitted to each other by contiguity between sex partners. Opa typing is likely to be more potential than Ng-MAST in genotyping of N.gonorrhoeae strains.

In order to investigate the role of MMP-9 and TIMP-1 in the pathogenesis of systemic sclerosis, the expression of MMP-9 and TIMP-1 was immunohistochemically detected in skin lesions of the patients with diffuse cutaneous systemic sclerosis, skin lesions of the patients with limited cutaneous systemic sclerosis, and skin tissues of normal subjects. The results showed that the expression of MMP-9 in lesions of diffuse cutaneous systemic sclerosis was significantly lower than that of normal skins (P<0.05). However, no significant difference in the level of MMP-9 in the limited cutaneous systemic sclerosis and normal skin was found. Meanwhile, the expression of TIMP-1 in lesions of diffuse cutaneous systemic sclerosis and limited cutaneous systemic sclerosis were significantly higher than that of normal skins (both P<0.05). It was suggested that the expression of MMP-9 and TIMP-1 might play an important role in the development of systemic sclerosis.

In order to investigate the role of Caspase-3 and Bax in the pathogenesis of lichen planus, immunohistochemistry was used to detect the expression of Caspase-3 and Bax in skin lesions of the patients with lichen planus and skin tissues of normal subjects. The results showed that positive rate of Caspase-3 and Bax expression in lichen planus were significantly higher than that in normal skins (both P<0.05). Meanwhile, there was a obvious correlation between the increase of Caspase-3 and that of Bax in lichen planus. The expression of Caspase-3 and Bax might play an important role in the development of lichen planus.

The inhibitory effects of (-)-epigallocatechin-3-gallate (EGCG) on the invasion of human malignant melanoma cell line A375 and the possible molecular mechanisms of this effect were investiaged. A375 cells were pretreated with 20μg/mL EGCG for 24,48 and 72h respectively and the E-cadherin expression was detected by Western blot analysis. A375 cells were also pretreated with different concentrations of EGCG (1,5,10 and 20μg/mL) for 72h and the expression of E-cadherin was measured by RT-PCR. The adhesion and invasion of A375 cells were tested by cell-matrigel adhesion assay and matrigel invasion assay respectively. The results showed that EGCG could significantly up-regulate the expression of E-cadherin time- and concentration-dependently (both P<0.05). Statistical analysis showed that A375 cells invasion was inhibited by EGCG and correlated with the up-regulation of E-cadherin expression. It was suggested that EGCG strongly inhibited invasion of A375 cells, and the inhibition mechanism was possibly associated with the up-regulation of E-cadherin expression.