A 5-year follow up analysis of cases in a high school tuberculosis outbreak / 中国学校卫生

Objective@#To explore the effectiveness of preventive treatment for latent tuberculosis infection (LTBI) patients, so as to provide reference for the management and preventive treatment of clustered epidemic in schools.@*Methods@#Data came from the school tuberculosis outbreak of a boarding high school in Kaizhou District, Chongqing, which occurred between June 2017 and March 2018 among 2016 grade high school teachers and students for investigation and analysis. The total incidence, LTBI patients, and the incidence after preventive treatment for 5 years were followed up.@*Results@#A total of 34 cases of pulmonary tuberculosis from June 2017 to March 2018. A total of 1 357 individuals were screened for 6 concentrated contact screenings, with a confirmed tuberculosis rate of 2.43%, a tuberculosis skin test (TST) positive rate of 27.41%, and a strong TST positive rate of 7.39%. Among them, the confirmed tuberculosis rate and TST positive rate in the first case class were much higher than those in other classes, with statistically significant differences ( χ 2=286.30, 98.59, P ＜0.01). 88 cases of LTBI were found, with 31 cases receiving preventive treatment (35.23%), of which 28 completed preventive treatment (90.32%). After five years of follow-up, 73 cases of pulmonary tuberculosis were diagnosed in 2016 by the school senior high school, with a incidence rate of 0.98/10 2 (person/person years). Fifteen of the 88 LTBI patients were diagnosed with pulmonary tuberculosis, and the incidence rate was 3.33/10 2 (person/person years). The incidence rate of the preventive treatment group was 0.7/10 2 (person/person years)lower than that of the medical observation group 4.5/10 2 (person/person years), with a statistically significant difference ( χ 2=4.31, P ＜0.05).@*Conclusion@#The classes with higher TST positive rate and strong positive rate have higher incidence rate. Improving the preventive treatment rate of LTBI patients can effectively reduce the incidence rate of tuberculosis.

Progress in omics research and preclinical models of gallbladder cancer / 中华外科杂志

Gallbladder cancer(GBC)is one common type of bile tract cancers with poor prognosis. This review summarizes the recent development of studies about somatic mutation, molecular subtype, microenvironment heterogeneity, organoid, orthotopic model, patient-derived xenograft and clinical translation on GBC in aspects of genomic,transcriptome,single cell omics and clinical translation. We expect this review will provide new ideas on dissecting molecular mechanisms underlying the development and emerging chemoresistance of GBC following therapy and promote GBC precision medicine.

Exploring Mechanism of Key Chinese Herbal Medicine on Breast Cancer by Data Mining and Network Pharmacology Methods / 中国结合医学杂志

OBJECTIVE@#To screen the key Chinese Herbal Medicines (KCHMs) against breast cancer by data mining, and analyze the potential mechanism of KCHMs using network pharmacology method.@*METHODS@#Clinical prescriptions consisted of CHMs for treating breast cancer were screened, and then Traditional Chinese Medicine Inheritance Support System (TCMISS) was applied to obtain the KCHMs. Subsequently, active ingredients and corresponding target genes of KCHMs were searched by Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) database, and target genes of breast cancer were collected using OMIM and MalaCards. After that, the overlapping target genes of KCHMs and breast cancer were screened, and the protein-protein interaction (PPI) network was built. In addition, a network of "KCHMs-active ingredients-breast cancer-targets" was constructed by Cytoscape 3.7.1. Finally, Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) analysis were performed with Database for Annotation, Visualization and Integrated Discovery (DAVID) database to reveal the action mechanism of KCHMs.@*RESULTS@#A total of 7 KCHMs were identified, whose active ingredients include quercetin, luteolin, nobiletin, kaempferol, isorhamnetin, naringenin, and be-ta-sitosterol, etc. Based on protein-protein interaction analysis, core targets were ESR1, MYC, CCND1, EGFR, CASP3, ERBB2, etc. Several KEGG pathways (e.g, PI3K-Akt, p53, ErbB, and HIF-1 signaling pathways) were found.@*CONCLUSION@#Based on the combination of the data mining method and network pharmacology approach, the therapeutic effect of KCHMs on breast cancer may be realized by acting on target genes and signaling pathways related to the formation and progression of breast cancer.

A rare anatomical variation of ileocolic veins involving in gastrocolic vein trunk: case report and literature review / 中华胃肠外科杂志

Objective: Due to its various anatomical variations and numerous branches, the gastrocolic vein trunk (Henle trunk) is the most common site to develop bleeding and other complications in laparoscopic right hemicolectomy for colon cancer. This study aims to investigate the role of ileocolic vein (ICV) joining with Henle trunk, a rare anatomical variation. Methods: A rare case whose ICV was newly found to involve in the formation of Henle trunk during laparoscopic resection of right hemicolon cancer was reported as right gastroepiploic vein+ right colic vein+superior right colic vein+ICV. This anatomical variation was confirmed by multi-slice spiral CT coronal two-dimensional reconstruction of right hemicolon angiography. The literatures about ICV participating in formation of Henle trunk were systematically searched from PubMed, The Cochran Library, CNKI net and Wanfang database, and the occurrence probability and composition of its anatomical variation were analyzed. Results: This was a 47-year-old female patient who underwent laparoscopic right hemicolectomy. When the vessels were dissected during operation, it was found that ICV did not accompany the ileocolic artery, but directly flowed into Henle trunk. Two-dimensional reconstructed CT images of right hemicolon vessels showed that the composition of Henle trunk was rarely varied, which was composed of right gastroepiploic vein, right colonic vein, superior right colonic vein and ICV. Five literatures were enrolled from literature retrieval. A total of 12 cases with ICV participating in the construction of Henle trunk were reported, with a probability of 0.27%-6.31% and 6 forms of the formation of Henle trunk. In this case, Henle trunk was made up of right gastroepiploic vein, right colonic vein, upper right colonic vein and ICV, which was reported for the first time. Conclusions: ICV involving in Henle trunk is a rare vascular variation, and this type of variation should be fully recognized. Careful dissection during operation is necessary to prevent intraoperative bleeding caused by improper operation.

SEM and XRD Identification of Mineral Chinese Medicine Alumen, Calcined Alumen, and Their Processed Products / 中国实验方剂学杂志

Objective: Ammonium alum is a common counterfeit of Alumen,and the processed product of ammonium alum is a common counterfeits of calcined Alumen. This paper aims to establish a method for identifying Alumen,calcined Alumen,ammonium alum and their processed products. Method: The samples were analyzed by scanning electron microscope (SEM) and X ray diffraction (XRD) in this paper. Result: Ammonium alum and Alumen showed obvious changes in morphology after processing. Both Alumen and ammonium alum showed obvious differences in morphology at×250 and×1 000 times microscope. Alumen presented irregular fragments,clear edge corners,smooth surface,scattered irregular small particles,occasional holes and longitudinal edges. Ammonium alum presented irregular clumps,blunt edges,not obvious edges and corners,uneven surface,scattered smaller and round-like particles. The difference in morphology was not obvious at×250 times microscope between Alumen and ammonium alum processed products. While at×1 000 times,the surface of calcined Alumen was uneven with coarse particles; the surface of counterfeit calcined Alumen was flat,and the coarse particle characteristics were not obvious. XRD can be used to rapidly and accurately identify the primary phase of Alumen,calcined Alumen,ammonium alum and ammonium alum processed products:KAl(SO4)2·12H2O,NH4Al(SO4)2·12H2O,KAl(SO4)2,and NH4Al(SO4)2 respectively, with 2θ angle characteristic value of 23,12,22 and 5 respectively for XRD peak. Conclusion: SEM and XRD techniques can be used for the identification of Alumen,calcined Alumen,ammonium alum and their counterfeit products.

HIV prevalence and risk factors among premarital couples in Dehong Prefecture of Yunnan Province, 2017 / 中华疾病控制杂志

Objective To understand the prevalence of HIV infection and its influencing factors in the premarital physical examination population in Dehong Prefecture, Yunnan Province, 2017. Methods The data of people receiving premarital medical examination was collected, the demographic characteristics was described and the related factors was analyzed by Logistic regression. Results There were 21 875 participants receiving premarital medical examination in Dehong. 98(0.45%) participants were confirmed positive for HIV and male infection rate was 0.47% (52/10 955) and female was 0.42% (46/10 920). Among the 98 patients, 20 patients were infected in the first time, and main route was sexual transmission accounting for 81.63% (80/98). Logistic multivariate regression analysis showed that age, ethnicity and drug use were the influencing factors for premarital couples infecting HIV. The risk of HIV infection in 31-40 and 41-50 years old group was higher than the people under 25 years old group(OR=3.78, 95% CI：1.81-7.89, P<0.001；OR=3.95, 95% CI：1.72-9.08, P=0.001). The infection risk of Dai and Jingpo ethnic group was higher than that of the Han ethnic(OR=1.86, 95% CI：1.06-3.29, P=0.031；OR=3.25, 95% CI：1.81-5.84, P<0.001). The risk of infection among drug users was much higher than non-drug users (OR=926.76, 95% CI：271.65-3 161.71, P<0.001). Conclusion Age, ethnicity, and drug use are influencing factors of HIV infection among premarital couples. Targeted measures need to be taken against risk factors. HIV infection is mainly transmitted by sexual transmission. It can be effectively detected and controlled through premarital medical examination.

A molecular epidemiological study of KI polyomavirus and WU polyomavirus in children with acute respiratory infection in Tianjin, China / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To investigate the relationship of KI polyomavirus (KIPyV) and WU polyomavirus (WUPyV) with acute respiratory infection in children in Tianjin, China.</p><p><b>METHODS</b>A total of 3 730 nasopharyngeal secretions were collected from hospitalized children with acute respiratory infection in Tianjin Children's Hospital from January 2011 to December 2013. Viral nucleic acid was extracted, and virus infection (KIPyV and WUPyV) was determined by PCR. Some KIPyV-positive and WUPyV-positive PCR products were subjected to sequencing. Sequencing results were aligned with the known gene sequences of KIPyV and WUPyV to construct a phylogenetic tree. Amplified VP1 fragments of KIPyV were inserted into the cloning vector (PUCm-T) transformed into E. coli competent cells. Positive clones were identified by PCR and sequencing. The nucleotide sequences were submitted to GenBank. In addition, another seven common respiratory viruses in all samples were detected by direct immunofluorescence assay.</p><p><b>RESULTS</b>In the 3 730 specimens, the KIPyV-positive rate was 12.14% (453/3 730) and the WUPyV-positive rate was 1.69% (63/3 730). The mean infection rate of KIPyV was significantly higher in June and July, while the mean infection rate of WUPyV peaked in February and March. Most of the KIPyV-positive or WUPyV-positive children were <3 years. The co-infections with KIPyV, WUPyV, and other respiratory viruses were observed in the children. The co-infection rate was 2.31% (86/3 730) and there were nine cases of co-infections with WUPyV and KIPyV. Thirty-five KIPyV-positive and twelve WUPyV-positive PCR products were sequenced and the alignment analysis showed that they had high homology with the known sequences (94%-100% vs 95%-100%). The VP1 gene sequences obtained from two KIPyV strains in this study were recorded in GenBank with the accession numbers of KY465925 and KY465926.</p><p><b>CONCLUSIONS</b>For some children with acute respiratory infection in Tianjin, China, the acute respiratory infection may be associated with KIPyV and WUPyV infections. KIPyV infection is common in summer, and WUPyV infection in spring. The epidemic strains in Tianjin have a high homology with those in other regions.</p>

Expression of Notch signaling pathway in temporomandibular osteoarthritis / 口腔疾病防治

Objective@# To investigate the expression of Notch signaling molecules in temporomandibular joint arthritis (TMJOA), and to explore the role and mechanism of Notch signaling pathway in the development and progression of TMJOA. @*Methods @#72 Kunming mice were randomly divided into experimental group, sham-surgery group and normal group. In experimental group, discs on the right TMJ were subjected to total discectomy, sham-operation group underwent the same procedure without disc removal, while normal group serve as blank control. All the left temporomandibular joint discs were not treated. 8 mice in each group were sacrificed respectively at 1 week, 2 week, 4 week after surgery. Histological examinations were performed to assess success of TMJOA model, according to the pathological standard of osteoarthritis diagnosis. Immunochemistry techniques were performed in the successful TMJOA cartilages to evaluate the expression levels of Notch1 (NICD1), Jagged1, Hes1 and Hes5. The scores were evaluated by semi-quantitative method. @*Results @#Notch1 (NICD1), Jagged1 and Hes5 were activated in the experimental group with the expression levels increased dramatically over time. While Hes1 expression was suppressed at the beginning of osteoarthritis but was up-regulated afterwards.@*Conclusion @# Notch pathway-related molecular expression changed greatly in TMJOA model, indicating that the pathway in the occurrence and development of TMJOA plays an important role.

An area CCD-based detection system for up-converting phosphor immune lateral flow assay / 军事医学

Objective To make portable the detector for up-converting phosphor (UCP) immune lateral flow assay portable and increase the test precision by developing an area CCD-based detection system for UCP immune lateral flow assay.Methods The excitation light source was a 980 nm and 300 mW laser diode.In order to decrease the error induced by the un-uniformity of laser irradiation,a uniformity mirror was inserted in the beam and a calibration algorithm was optimized.The residual error from the un-uniformity irradiation was less than 1％.Results Thanks to the adjustability of the exposure time,the dynamic range of detection of the system was as high as 106 dB.The repeat test error for the very low signal was 1％ (variation coefficient).The linear correlation coefficient between the tested T/C value and sample concentration was 0.998.Conclusion Compared to is traditional instrument,this detection system is static,portable and highly precise.

Effects of vinpocetine on inflammation of brain in rats with intracerebral hemorrhage / 中国病理生理杂志

AIM:To investigate the effects of vinpocetine on inflammation of brain in intracerebral hemorrhage ( ICH) rats and to explore the underlying mechanisms .METHODS:All rats were randomly divided into sham group , ICH group, ICH with low dose of vinpocetine treatment group , ICH with medium dose of vinpocetine treatment group , and ICH with high dose of vinpocetine treatment group .Except sham group , the rats in other groups were injected with type VII col-lagenase to establish ICH model , and then the rats in vinpocetine treatment groups were received vinpocetine at 0.5, 1.0 or 1.5 mg/kg by intraperitoneal injection once a day for 7 days.After corresponding treatment , the impairment of neurological function in the rats was scored and the water content of the brain tissues was measured .Moreover, the activity of myeloper-oxidase (MPO) was determined by ELISA, and the protein expression of Toll-like receptors 4 (TLR4), nuclear factor-κB (NF-κB), intercellular cell adhesion molecule-1 (ICAM-1) and vascular cell adhesion molcule-1 (VCAM-1) in the brain tissues was determined by Western blot .RESULTS: Compared with ICH group , vinpocetine treatment significantly de-creased the scores of the impairment of neurological function and the water content of the brain tissues .Moreover, the activ-ity of MPO and the protein expression of TLR4, NF-κB, ICAM-1 and VCAM-1 were also reduced after vinpocetine treat-ment (P<0.05).CONCLUSION:Vinpocetine improves neurological function in ICH rats via suppression of inflamma -tion by inhibiting NF-κB signaling and expression of ICAM-1 and VCAM-1.

Up- and Down-regulated Leukemia-related Protein 16 Affects ERα Expression and Prolactin Secretion by GH3 Cells / 生物医学与环境科学（英文）

Prolactinoma is an estrogen-related tumor and leukemia-related protein 16 (LRP16) is correlated with the progression of estrogen-related tumors, but the regulatory mechanism between LRP16 and prolactinoma remain unclear. This study demonstrates a variation in LRP16 with estrogen receptor α (ERα) in prolactinoma models and the up and downregulation effects of LRP16 on prolactin secretion of pituitary adenomas cells (GH3 cells). In our study, 50 male SD rats (30-day-old) were randomly divided into five groups of 10 rats each. After 120 days of treatment, the rats were sacrificed, and the expression of LRP16 and ERα were examined by Western blot and immunohistochemistry to explore the changes in ERα, LRP16, and prolactin. After siRNA transfection of the respective genes, the GH3 cells were cultured, and their secretory function as well as the expression of ERα mRNA and prolactin were analyzed by enzyme-linked immunosorbent assay and real-time-polymerase chain reaction analysis. The results show that secretion of prolactin by GH3 cells can be affected by up and downregulating LRP16 expression, which may provide a novel medical therapy in clinical trials.

Clinical presentation of hemophagocytic lymphohistiocytosis in adults is less typical than in children

OBJECTIVE: Hemophagocytic lymphohistiocytosis in adults is largely underdiagnosed. To improve the rate and accuracy of diagnosis in adults, the clinical and laboratory characteristics of hemophagocytic lymphohistiocytosis were analyzed in and compared between adults and children in a Chinese cohort. METHOD: Data from 50 hemophagocytic lymphohistiocytosis patients, including 34 adults and 16 children who fulfilled the 2004 hemophagocytic lymphohistiocytosis diagnostic criteria, were collected and analyzed. RESULTS: 1. Etiological factors: The proportion of Epstein-Barr virus infection was lower in adults compared with children, whereas fungal infection and natural killer/T cell lymphoma were more frequent in adults (P<0.05). 2. Clinical manifestations and laboratory findings: Over 90% of adults and pediatric patients presented with fever, thrombocytopenia and high serum ferritin levels. However, in adults, the proportions of hepatomegaly, splenomegaly and jaundice were much lower (P<0.01) than in children, and serous cavity effusion was more frequent in adult patients (P<0.05). More children had hemoglobin <90 g/L, total bilirubin >19 mmol/L and lactate dehydrogenase >500 U/L compared with adults (P<0.05). 3. The time interval from the onset of symptoms to clinical diagnosis was significantly shorter in pediatric patients than in adults (P<0.05). CONCLUSIONS: Certain clinical features were different between the two groups. The less characteristic clinical presentation of hemophagocytic lymphohistiocytosis in adults may make the disease more difficult to diagnose. Our findings suggest that hemophagocytic lymphohistiocytosis should be considered when an adult patient presents with the above-mentioned symptoms.

Treatment of trigger finger with located needle knife / 中国骨伤

<p><b>OBJECTIVE</b>To investigate the clinical effects of located needle knife in the treatment of trigger finger.</p><p><b>METHODS</b>The clinical data of 133 patients(145 fingers) with trigger finger underwent treatment with located needle knife from September 2010 to March 2014 were retrospectively analyzed. There were 37 males(40 fingers) and 96 females (105 fingers), aged from 18 to 71 years old with a mean of 51.8 years. Course of disease was from 1 to 19 months with an average of 8.2 months. Affected fingers included 82 thumbs, 12 index fingers, 11 middle fingers, 36 ring fingers, and 4 little fingers. According to the standard of Quinnell grade, 42 fingers were grade III, 92 fingers were grade IV, and 11 fingers were grade V. Firstly the double pipe gab was put into the distal edge of hypertrophic tendon sheath, then small knife needle was used to release the sheath proximally along the tendon line direction. The informations of wound healing and nerve injury, postoperative finger function, finger pain at 6 months were observed.</p><p><b>RESULTS</b>The operation time was from 8 to 25 min with an average of 9.8 min. All the patients were followed up from 6 to 26 months with an average of 12.5 months. No complications such as the wound inflammation and seepage, vascular or nerve injuries were found. According to the standard of Quinnell grade, 123 fingers got excellent results, 15 good, 7 poor.</p><p><b>CONCLUSIONS</b>It's a good choice to treat trigger finger with located needle knife in advantage of minimal invasion, simple safe operation, and it should be promoted in clinic.</p>

Detection and analysis of bocavirus in hospitalized children with respiratory infection / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To detect human bocavirus (HBoV) and investigate its genetic and evolutionary characteristics in children with acute respiratory infection in Tianjin, China.</p><p><b>METHODS</b>A total of 1,259 samples of nasopharyngeal aspirates were collected from children with a confirmed diagnosis of acute respiratory infection between January and December, 2012. Viral nucleic acid was extracted, HBoV was detected by real-time quantitative PCR, and the gene segments of nucleocapsid protein of HBoV in positive samples were amplified by PCR. Several products were randomly selected and sequenced.The sequence obtained was compared with the known sequence of HBoV, and a phylogenetic analysis was performed. All the samples were examined to detect for other common respiratory tract viruses.</p><p><b>RESULTS</b>Among the 1,259 samples, the positive rate of HBoV was 4.53% (57/1,259), and among the 57 samples with positive HBoV, 75% (43/57) were positive in children with an age of 6-36 months. The positive rate of HBoV in children peaked in summer (from June to August), and there was a mixed infection with other viruses. Sequence analysis was performed for the PCR products from 36 positive samples, and the presence of HBoV was confirmed, with a higher homology to the known sequence of HBoV.</p><p><b>CONCLUSIONS</b>In Tianjin, acute respiratory infection in some children may be associated with HBoV infection, which is commonly seen in infants with an age of 6-36 months. The peak of HBoV infection occurs in summer. The phylogenetic analysis shows a high homology to the known sequence of HBoV, with few gene sequence variations.</p>

Biomechanical Comparison of Two Kinds of Internal Fixation in a Type C Zone II Pelvic Fracture Model / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Unstable pelvic fractures are complex and serious injuries. Selection of a fixation method for these fractures remains a challenging problem for orthopedic surgeons. This study aimed to compare the stability of Tile C pelvic fractures fixed with two iliosacral (IS) screws and minimally invasive adjustable plate (MIAP) combined with one IS screw.</p><p><b>METHODS</b>This study was a biomechanical experiment. Six embalmed specimens of the adult pelvis were used. The soft tissue was removed from the specimens, and the spines from the fourth lumbar vertebra to the proximal one-third of both femurs were retained. The pubic symphysis, bilateral sacroiliac joints and ligaments, bilateral hip joints, bilateral sacrotuberous ligaments, and bilateral sacrospinous ligaments were intact. Tile C pelvic fractures were made on the specimens. The symphysis pubis was fixed with a plate, and the fracture on the posterior pelvic ring was fixed with two kinds of internal fixation in turn. The specimens were placed in a biomechanical machine at a standing neutral posture. A cyclic vertical load of up to 500 N was applied, and displacement was recorded. Shifts in the fracture gap were measured by a grating displacement sensor.</p><p><b>STATISTICAL ANALYSIS USED</b>Paired-samples t-test.</p><p><b>RESULTS</b>Under the vertical load of 100, 200, 300, 400, and 500 N, the average displacement of the specimens fixed with MIAP combined with one IS screw was 0.46, 0.735, 1.377, 1.823, and 2.215 mm, respectively, which was significantly lower than that of specimens fixed with two IS screws under corresponding load (P < 0.05). Under the vertical load of 500 N, the shift in the fracture gap of specimens fixed with MIAP combined with one IS screw was 0.261 ± 0.095 mm, and that of specimens fixed with two IS screws was 0.809 ± 0.170 mm. The difference was significant (P < 0.05).</p><p><b>CONCLUSION</b>The stability of Tile C pelvic fractures fixed with MIAP combined with one IS screw was better than that fixed with two IS screws.</p>

Prevention of Inonotus obliquus polysaccharides for high power microwave radiation induced testicular injury in rats: an experimental research / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To investigate the effect of Inonotus obliquus polysaccharides on testicular injury induced by exposure to high power microwave (HPM) in rats.</p><p><b>METHODS</b>A total of 30 male Wistar rats were randomly divided into 5 groups, i.e., the normal control group, the microwave radiation model group, the treatment group, the new microwave radiation model group, and the prevention group, 6 in each group. All rats, except those in the normal control group, were exposed to microwave at an average power density of 200 mW/cm2 for 6 min. Rats in the control group and the model group were administered with normal saline by gastrogavage, once a day. Rats in the treatment group and the prevention group were given with Inonotus obliquus polysaccharides by gastrogavage, 2 mL each time (400 mg/kg body weight), once a day. All rats were sacrificed on the 11th day.The sperm density and the rate of sperm deformity were determined. Pathological changes of testis were observed by light microscope and transmission electron microscope.</p><p><b>RESULTS</b>Short-term HPM irradiation could significantly reduce the sperm density and increase the sperm deformity rate (P < 0.05). Meanwhile, obvious pathological changes of testes occurred. Compared with the two model groups, the sperm density increased and the sperm deformity rate decreased in the treatment group and the prevention group (P < 0.05). Under the light microscope, injuries of spermatogenic cells and stromal cells, as well as vascular dilatation and congestion were obviously alleviated in the treatment group and the prevention group. Mitochondrial swelling and endoplasmic reticulum expansion shown by ultrastructural observation were also significantly alleviated. Of them, injuries of spermatogenic cells and inflammation response were milder in the treatment group than in the prevention group.</p><p><b>CONCLUSIONS</b>Inonotus obliquus polysaccharides had significant protective effect on microwave radiation induced testicular injury. Better effect was obtained by therapeutic medication than preventive medication.</p>

Changes in near vision and stereopsis after orthokeratology / 国际眼科杂志(Guoji Yanke Zazhi)

AlM:To provide a proper assessment of the clinical use of orthokeratology by observing and analyzing the ocular biometric changes of the eyes and the stereopsis of the myopia. METHODS:Sixty eyes from 30 myopia ( from 8 to 17 years old) were fitted with orthokeratology. Stereopsis, visual acuity, near visual acuity, central corneal thickness, anterior chamber depth, average anterior corneal refractive power ( K value ) , and intraocular pressure were measured before the orthokeratology treatment and 3mo after it. Refraction was expressed as spherical equivalent ( SE) , and the subjects were divided into 3 groups according to refraction: low myopia group (SE RESULTS:All subjects had significant improvements in visual acuity and near visual acuity 3mo after the orthokeratology treatment (P0. 05 ). Three months after the orthokeratology treatment, Naked eye near stereoacuity values of all subjects were decreased (P 0. 05 ). There was significant correlation in stereopsis and anisometropia ( Pearson coefficient r = 0. 778, P 0. 05). CONCLUSlON:Orthokeratology could lower K value in a short time and change the corneal curvature to correct myopia, to improve visual acuity and near visual acuity. lt also has an influence on improving stereopsis. There are no obviously changes in patients' central corneal thickness, anterior chamber depth or intraocular pressure after the orthokeratology treatment, making it a safe and effective treatment for adolescent.

The standard parameters and influential factors of cervical spine alignment and range of motion / 中华骨科杂志

Objective To establish standard parameters of cervical alignment and cervical range of motion(ROM) in asymptomatic population,and to explore the influential factors such as age,sex and cervical disc degeneration.Methods The cervical standard lateral,flexion and extension plain radiographs of 212 asymptomatic volunteers were analyzed retrospectively.The volunteers,including 128 females and 84 males with ages ranging from 20 to 79 years,were divided into 6 groups from 3rd to 8th decade of life and were divided into 4 groups based on the scoring system of cervical disc degeneration.These plain films were blindly measured by 3 spine surgeons with Mimics software,and each spine surgeon mcasured them for 3 times.Several parameters,including C2-C7 cervical alignment,total ROM,flexion ROM,extension ROM and segmental ROM were measured.The score of disc degeneration were assessed from C2-C3 to C6-C7.Pearson correlation analyses was used to quantify the relation between cervical alignment and total ROM.Multiple linear regression analyses were required to account for influential factors.Inter-and intrarater correlation coefficient was analyzed.Results The C2-C7 cervical alignment was 21.40°± 12.15°,and the total ROM was 63.59°± 15.37°.Sex had a significant impact on the cervical alignment (regression coefficient was-2.472,P ＜ 0.05).Both sex and age had significant impacts on the total ROM (regression coefficient was 3.863 and-6.463 respectively,P ＜ 0.05).Sex had a significant impact on C2,3 and C5,6 segmental ROM; age had a significant impact on all of the five segmental ROM from C2,3 to C6,7; cervical disc degeneration had a significant impact on the C4-5,C5-6 and C6-7 segmental ROM.The cervical alignment had no significant association with both of the extension and total ROM (r=-0.106 and 0.215,respectively,P ＞ 0.05),but had a significantly negative association with flexion angle (r=-0.401,P＜ 0.05).The measurement of cervical alignment,total ROM and segmental ROM showed excellent intra-rater agreement and excellent inter-rater agreement.Conclusion Sex is an influential factor of the cervical alignment.Sex and age are two influential factors of the total ROM.Sex,age and cervical disc degeneration are influential factors of the segmental ROM.The cervical alignments do not have an impact on total ROM.

Advance in Animal Experiment of Acupuncture for Cerebral Palsy (review) / 中国康复理论与实践

This article reviewed the effects of acupuncture on structure and function of central nervous system (CNS). Acupuncture is effective on motor function and ability of learning and memory. The mechanism is complex, including cerebral blood flow, pathomorphism, energy metabolism, free radicals metabolism, cell apoptosis, synaptic connections, and expression of neurotrophic factor, etc.

Effects of Acupuncture Based on Acupoint Selection of Myofascial Meridians Perspective on Regeneration of Nerve Cells and Recovery of Motor Function in Rats with Cerebral Palsy / 中国康复理论与实践

@#Objective To investigate the effects of acupuncture based on acupoint selection of myofascial meridians perspective on the regeneration of nerve cells and recovery of motor function in rats with cerebral palsy. Methods 20 healthy 21-day-old male Sprague-Dawley rats were divided into control group, acupuncture groups 1 (receiving traditional acupuncture) and 2 (receiving acupuncture based on acupoint selection of myofascial meridians perspective), and sham group. The control group and the acupuncture groups were subjected to ligation of left carotid artery (ischemia) and then put into a hypoxic environment. They were assessed with Basso-Beattie-Bresnahan (BBB) Scale and inclined plane test 3 d, 7 d and 14 d after the beginning of acupuncture. And 5-bromo-2'-deoxyuridine (BrdU) was used to label Sphase cells in the left striaturn and motor cortex in each group 14 d after the beginning of acupuncture. Results The BBB scores improved more in the acupuncture group 2 than in the acupuncture group 1 and the control group 7 d, 14 d after the beginning of acupuncture (P<0.01), as well as the score of inclined plane test 3 d, 7 d, 14 d after acupuncture (P<0.05). BrdU was more in the left motor cortex in the acupuncture group 2 than in the acupuncture group 1 (P<0.05). Conclusion Acupuncture based on acupoint selection of myofascial meridians perspective can promote the regeneration of nerve cells and recovery of motor function in rats with cerebral palsy, that is more effective than traditional acupuncture.