Internal fixation treatment of AO-C type distal radius fractures accompanied with a dorsoulnar fragment involving 1/8 to 1/3 of the articular surface of the lunate facet / 中华骨科杂志

Objective:To explore the clinical outcome of internal fixation in the treatment of AO C-type distal radius fracture accompanied with dorsoulnar fragment involving 1/8 to 1/3 of the articular surface of the lunate facet.Methods:A total of 55 patients of AO C-type distal radius fracture accompanied with dorsoulnar fragment involving 1/8 to 1/3 of the articular surface of the lunate facet from July 2017 to July 2022 in Tongji Hospital Affiliated to Tongji University were retrospectively analyzed. In the volar plate group (volar locking plate treatment alone), there were 22 cases, 11 males and 11 females, aged 56.7±10.1 years, 10 C1 type, 7 C2 type and 5 C3 type. There were 15 patients in the volar plate+dorsal plate group (treated with volar locking plate combined with dorsal plate), including 6 males and 9 females, aged 55.7±8.1 years old, 4 C1 type, 5 C2 type and 6 C3 type. In the volar plate+dorsal screw group (treated with volar locking plate combined with dorsal screw), there were 18 cases, 8 males and 10 females, aged 53.5±11.6 years, 7 cases of C1 type, 5 cases of C2 type, and 6 cases of C3 type. The operation time, postoperative radiographic indicators, wrist range of motion (ROM), disability of arm, shoulder and hand (DASH) score, visual analogue scale (VAS) and postoperative complications were evaluated and compared between the three groups.Results:All operations were successfully completed. Patients were followed up for 14.9 ± 2.2 months (range, 12-18 months), and the fracture healing time was 12.4±2.3 weeks (range, 9-16 weeks). The operative time of patients in the volar plate group, volar plate+dorsal plate group and volar plate+dorsal screw group was 54.3±7.6 min, 70.7±5.9 min and 65.8± 7.1 min, respectively. Patients in the volar plate group had less operative time ( F=27.04, P<0.001). The residual displacement of the dorsoulnar fragment in sagittal, coronal, and axial CT scans in the three groups were (1.3±0.8 mm, 0.6±0.4 mm, 0.7±0.4 mm), (1.1±0.8 mm, 0.6±0.4 mm, 0.6±0.6 mm), (1.4±0.8 mm, 0.7±0.4 mm, 0.7±0.5 mm). The displacement of the dorsoulnar fragment of the two groups of combined volar and dorsal internal fixation was smaller than that of the volar plate group ( P<0.05). The ROM of wrist flexion of the three groups at 3 months after operation were 44.2°±4.6°, 47.7°±5.9°, 48.8°±5.1°, the ROM of wrist extension were 39.8°±6.2°, 44.3°± 4.6°, 44.7°±5.1°, the wrist DASH scores were 23.0±4.2, 20.1±4.1 and 19.4±3.0, and the VAS were 2.3±1.2, 1.6±1.3 and 1.3±1.0, respectively. The ROM of wrist flexion and extension and DASH score in volar plate+dorsal plate group were better than those in volar plate group ( P<0.05). The ROM of wrist flexion and extension, DASH score and VAS in the volar plate+dorsal screw group were better than those in the volar plate group ( P<0.05). There were no significant differences in terms of the wrist ROM, DASH score and VAS at 12 months after operation among the three groups ( P>0.05). There were 2 patients in the volar plate group with reduction loss, 3 patients with wrist chronic pain; 1 patient in the volar plate combined with dorsal plate group with dorsal tendon irritation, and no complications in the volar plate combined with dorsal screw group. Conclusion:For AO C-type distal radius fractures accompanied with a dorsoulnar fragment involving 1/8 to 1/3 of the articular surface of the lunate facet, the use of combined volar and dorsal internal fixation can improve the reduction accuracy and stability of the dorsoulnar fragment, and contribute to the early rehabilitation of postoperative wrist joint function. The effect of combined dorsal screw is comparable to that of dorsal plate internal fixation, but the complications of screw internal fixation are less.

Penile protection with a self-developed flexible sleeve penile protection device after circumcision: a prospective randomized controlled trial / 现代泌尿外科杂志

【Objective】 To investigate the protective effects of aflexible sleeve penile protection device on reducing postoperative pain and wound edema in patients after circumcision. 【Methods】 A total of 54 patients who underwent circumcision at Yan’an Branch of Peking University Third Hospital during Feb.1 and May 31, 2023 were enrolled.The patients were randomly divided into the experimental group and control group, with 27 patients in either groups.Patients in the experimental group were treated with a flexible sleeve penis protection device after surgery, and patients in the control group were treated with traditional gauze bandage after surgery.Postoperative pain, wound edema and complications were compared between the two groups. 【Results】 In terms of pain, the visual analogue scale of the experimental group was significantly lower at 6 hours [(1.7±0.9) vs.(3.3±1.9), P0.05).In terms of edema, the edema score of the experimental group was significantly lower than that of the control group on the 2nd postoperative day [(2.0±1.0) vs.(4.0±0.8), P0.05). 【Conclusion】 The flexible sleeve penile protection device has significant effects of reducing early postoperative pain and reducing edema in patients undergoing circumcision.

Research progress on clinical and mechanisms of chronic pruritus with anxiety and depression / 中华预防医学杂志

Chronic pruritus seriously affects the quality of life of patients, which is closely related to stress, anxiety and depression. Prolonged and repeated pruritus can induce negative emotions such as anxiety and depression, while continued increased negative emotions can also promote exacerbation of pruritus, which drives the itch scratch cycle, thereby further aggravating skin damage. More and more studies have explored the mechanism of pruritus, anxiety and depression. This article mainly reviews the clinical relationship between pruritus and anxiety, depression and the new progress of its possible mechanism, providing reference for the prevention, control and effective treatment of chronic pruritus, anxiety and depression.

A comparative study of three internal fixation techniques for comminuted fractures of humeral greater tuberosity / 中华创伤骨科杂志

Objective:To compare the clinical outcomes between anatomical locking plate, proximal humerus internal locking system (PHILOS) and anatomical locking plate combined with suture anchors in the treatment of comminuted fractures of humeral greater tuberosity.Methods:A total of 33 comminuted fractures of humeral greater tuberosity were surgically treated from October 2016 to October 2021 at Department of Orthopedics, Tongji Hospital Affiliated to Tongji University. There were 20 males and 13 females, with an age of (53.5±13.6) years. They were assigned into 3 groups according to different internal fixation techniques. Group A of 12 cases was subjected to fixation with anatomical locking plate via the deltoid approach, group B of 10 cases subjected to fixation with PHILOS via the pectoralis major and the deltoid approaches and group C of 11 cases subjected to fixation with anatomical locking plate combined with suture anchors via the deltoid approach. The operation time, intraoperative blood loss, range of shoulder motion, Constant-Murley shoulder score, visual analogue scale (VAS) and postoperative complications were compared between the 3 groups.Results:The 3 groups were comparable because there was no significant difference between them in the general clinical data ( P>0.05). The follow-up duration for all patients was (14.5±4.1) months. All fractures got united at the last follow-up. In groups A, B and C, respectively, the operation time was (57.9±7.8), (73.0±7.1) and (63.6±9.5) min, and the intraoperative blood loss (41.7±18.9), (82.0±22.9) and (46.4±13.6) mL, showing significant differences between the 3 groups ( P<0.05). The operation time and intraoperative blood loss in groups A and C were significantly less than those in group B ( P< 0.05). At the last follow-up, in groups A, B and C, respectively, the shoulder abduction was 144.0°±7.7°, 138.7°±10.7° and 148.5°±6.2°, showing significant differences between the 3 groups ( P<0.05). Group C was significantly better than group B ( P<0.05). There was no statistically significant difference in the forward flexion, external rotation, or internal rotation of the shoulder joint between the 3 groups ( P>0.05). The Constant-Murley scores in groups A, B and C, respectively, were (90.4±5.7), (86.1±6.6) and (93.1±3.4) points, showing significant differences between the 3 groups ( P<0.05). Group C was significantly better than group B ( P<0.05). The VAS scores in groups A, B and C, respectively, were 1 (0, 2), 1 (0, 2), and 1 (0, 1) point, showing insignificant differences between the 3 groups ( P>0.05). Group A had 1 case of shoulder joint stiffness and 1 case of fracture re-displacement complicated with acromial impingement syndrome, group B 1 case of shoulder joint stiffness and 3 cases of fracture re-displacement, but group C no post-operative complication. Conclusions:In the treatment of comminuted fracture of humeral greater tuberosity, all the 3 internal fixation techniques can lead to fine clinical outcomes. Conventional PHILOS may lead to relatively large trauma and a high incidence of postoperative complications. The anatomical locking plate may result in fine functional recovery of the shoulder due to advantages of less invasion, shorter operation time and fewer postoperative complications than PHILOS. The anatomical locking plate combined with suture anchors may lead to the best shoulder functional recovery and the least complications.

Clinical observation on the efficacy and safety of dupilumab in the treatment of moderate to severe atopic dermatitis / 中华预防医学杂志

To investigate the clinical efficacy and safety of dupilumab in the treatment of moderate to severe atopic dermatitis (AD) in China. A small sample self-controlled study before and after treatment was conducted to retrospective analysis patients with moderate to severe AD treated with dupilumab in the department of dermatology of the First Affiliated Hospital of Chongqing Medical University from July 2020 to March 2022. Dupilumab 600 mg was injected subcutaneously at week 0, and then 300 mg was injected subcutaneously every 2 weeks. The condition was evaluated by SCORAD(severity scoring of atopic dermatitis), NRS(numerical rating scale), DLQI(dermatology life quality index) and POEM(patient-oriented eczema measure). The improvement of SCORAD, NRS, DLQI and POEM was analyzed by paired t test and non-parametric paired Wilcoxon. The results showed that a total of 67 patients with moderate to severe AD received dupilumab treatment, of which 41 patients (the course of treatment was more than 6 weeks) had reduced the severity of skin lesions, improved quality of life and reduced pruritus. A total of 23 patients completed 16 weeks of treatment. At 4, 8, 12 and 16 weeks, SCORAD, NRS, DLQI and POEM decreased compared with the baseline, and the differences were statistically significant. SCORAD (50.13±15.19) at baseline, SCORAD (36.08±11.96)(t=6.049,P<0.001) at week 4,SCORAD (28.04±11.10)(t=10.471,P<0.001) at week 8, SCORAD (22.93±9.72)(t=12.428,P<0.001) at week 12, SCORAD (16.84±7.82)(t=14.609,P<0.001) at week 16, NRS 7(6,8) at baseline, NRS 4(3,5)(Z=-3.861,P<0.001) at week 4, NRS 2(1,4)(Z=-4.088,P<0.001) at week 8, NRS 1(0,2)(Z=-4.206,P<0.001) at week 12, NRS 2(0,2)(Z=-4.222,P<0.001) at week 16, DLQI (13.83±5.71) at baseline, DLQI (8.00±4.02)(t=6.325,P<0.001) at week 4, DLQI (5.61±3.50)(t=8.060,P<0.001) at week 8, DLQI (3.96±1.99)(t=8.717,P<0.001) at week 12, DLQI (2.70±1.89)(t=10.355,P<0.001) at week 16, POEM (18.04±6.41) at baseline, POEM (9.70±4.70)(t=7.031,P<0.001) at week 4, POEM (7.74±3.48)(t=8.806,P<0.001) at week 8, POEM (6.35±3.33)(t=10.474,P<0.001) at week 12, POEM (4.26±2.51)(t=11.996,P<0.001) at week 16. In the 16th week, 100%(23 patients), 91.3%(21 patients), 34.8%(8 patients) and 8.7%(2 patients) of 23 patients reached SCORAD30, SCORAD50, SCORAD70, and SCORAD90 statuses, respectively. There were 82.6%(19 patients), 95.7%(22 patients) and 95.7%(22 patients) of 23 patients with NRS, DLQI and POEM improved by≥4 points compared with baseline. Twelve patients with AD who continued to receive dupilumab after 16 weeks showed further improvement in skin lesions. The adverse events were conjunctivitis and injection site reaction. In conclusion, dupilumab is an effective and safe treatment for moderate and severe AD. However, the longer-term efficacy and safety require further studies involving larger sample sizes and a longer follow-up time.

Clinical observation on the efficacy and safety of dupilumab in the treatment of moderate to severe atopic dermatitis / 中华预防医学杂志

To investigate the clinical efficacy and safety of dupilumab in the treatment of moderate to severe atopic dermatitis (AD) in China. A small sample self-controlled study before and after treatment was conducted to retrospective analysis patients with moderate to severe AD treated with dupilumab in the department of dermatology of the First Affiliated Hospital of Chongqing Medical University from July 2020 to March 2022. Dupilumab 600 mg was injected subcutaneously at week 0, and then 300 mg was injected subcutaneously every 2 weeks. The condition was evaluated by SCORAD(severity scoring of atopic dermatitis), NRS(numerical rating scale), DLQI(dermatology life quality index) and POEM(patient-oriented eczema measure). The improvement of SCORAD, NRS, DLQI and POEM was analyzed by paired t test and non-parametric paired Wilcoxon. The results showed that a total of 67 patients with moderate to severe AD received dupilumab treatment, of which 41 patients (the course of treatment was more than 6 weeks) had reduced the severity of skin lesions, improved quality of life and reduced pruritus. A total of 23 patients completed 16 weeks of treatment. At 4, 8, 12 and 16 weeks, SCORAD, NRS, DLQI and POEM decreased compared with the baseline, and the differences were statistically significant. SCORAD (50.13±15.19) at baseline, SCORAD (36.08±11.96)(t=6.049,P<0.001) at week 4,SCORAD (28.04±11.10)(t=10.471,P<0.001) at week 8, SCORAD (22.93±9.72)(t=12.428,P<0.001) at week 12, SCORAD (16.84±7.82)(t=14.609,P<0.001) at week 16, NRS 7(6,8) at baseline, NRS 4(3,5)(Z=-3.861,P<0.001) at week 4, NRS 2(1,4)(Z=-4.088,P<0.001) at week 8, NRS 1(0,2)(Z=-4.206,P<0.001) at week 12, NRS 2(0,2)(Z=-4.222,P<0.001) at week 16, DLQI (13.83±5.71) at baseline, DLQI (8.00±4.02)(t=6.325,P<0.001) at week 4, DLQI (5.61±3.50)(t=8.060,P<0.001) at week 8, DLQI (3.96±1.99)(t=8.717,P<0.001) at week 12, DLQI (2.70±1.89)(t=10.355,P<0.001) at week 16, POEM (18.04±6.41) at baseline, POEM (9.70±4.70)(t=7.031,P<0.001) at week 4, POEM (7.74±3.48)(t=8.806,P<0.001) at week 8, POEM (6.35±3.33)(t=10.474,P<0.001) at week 12, POEM (4.26±2.51)(t=11.996,P<0.001) at week 16. In the 16th week, 100%(23 patients), 91.3%(21 patients), 34.8%(8 patients) and 8.7%(2 patients) of 23 patients reached SCORAD30, SCORAD50, SCORAD70, and SCORAD90 statuses, respectively. There were 82.6%(19 patients), 95.7%(22 patients) and 95.7%(22 patients) of 23 patients with NRS, DLQI and POEM improved by≥4 points compared with baseline. Twelve patients with AD who continued to receive dupilumab after 16 weeks showed further improvement in skin lesions. The adverse events were conjunctivitis and injection site reaction. In conclusion, dupilumab is an effective and safe treatment for moderate and severe AD. However, the longer-term efficacy and safety require further studies involving larger sample sizes and a longer follow-up time.

Investigation on anti-hepatitis B virus active components and mechanism of Salvia miltiorrhiza based on network pharmacology / 药学学报

We predicted the anti-hepatitis B virus (HBV) active components and mechanism of Salvia miltiorrhiza based on network pharmacology. The active components of S. miltiorrhiza were obtained through TCMSP, PubChem database and literature research. The potential targets of the active components and HBV infection were predicted by SwissTargetPrediction and GeneCards databases, respectively. The protein-protein interaction (PPI) network was constructed by String database. Cytoscape software was adopted to construct a visual network of active component-disease target and perform topological analysis. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed using DAVID platform. The molecular docking of key components and core targets was carried out by AutoDock Vina software. We screened out a total of 38 active components and 178 disease-component overlapping targets. Enrichment analyses obtained 405 related GO items and 68 signaling pathways, such as T/B cell receptor signaling pathways, PI3K/AKT signaling pathway, and mTOR signaling pathway. According to the results of molecular docking, most characteristic components of S. miltiorrhiza (miltionone Ⅱ, miltirone, protocatechuic acid, lithospermic acid, protocatechualdehyde) showed good affinity with the key targets (PIK3CA, APP, STAT3,AKT1 and mTOR). Furthermore, the anti-HBV activity of lithospermic acid, the representative active component of S. miltiorrhiza, and its regulation on PI3K/AKT and mTOR signaling pathways were investigated in an HBV replicating mouse model. Animal welfare and experimental procedures follow the regulations of the Animal Ethics and Welfare Committee of Hubei University. The results showed that lithospermic acid significantly inhibited HBV DNA replication, reduced serum HBsAg and HBeAg levels, and decreased the phosphorylation protein expression levels of AKT and mTOR in liver, indicating that lithospermic acid might exert the anti-HBV activity by regulating PI3K/AKT and mTOR signaling pathways.

Novel MSX1 variants identified in families with nonsyndromic oligodontia / 国际口腔科学杂志·英文版

The goal of this study was to identify MSX1 gene variants in multiple Chinese families with nonsyndromic oligodontia and analyse the functional influence of these variants. Whole-exome sequencing (WES) and Sanger sequencing were performed to identify the causal gene variants in five families with nonsyndromic oligodontia, and a series of bioinformatics databases were used for variant confirmation and functional prediction. Phenotypic characterization of the members of these families was described, and an in vitro analysis was performed for functional evaluation. Five novel MSX1 heterozygous variants were identified: three missense variants [c.662A>C (p.Q221P), c.670C>T (p.R224C), and c.809C>T (p.S270L)], one nonsense variant [c.364G>T (p.G122*)], and one frameshift variant [c.277delG (p.A93Rfs*67)]. Preliminary in vitro studies demonstrated that the subcellular localization of MSX1 was abnormal with the p.Q221P, p.R224C, p.G122*, and p.A93Rfs*67 variants compared to the wild type. Three variants (p.Q221P, p.G122*, and p.A93Rfs*67) were classified as pathogenic or likely pathogenic, while p.S270L and p.R224C were of uncertain significance in the current data. Moreover, we summarized and analysed the MSX1-related tooth agenesis positions and found that the type and variant locus were not related to the severity of tooth loss. Our results expand the variant spectrum of nonsyndromic oligodontia and provide valuable information for genetic counselling.

Bioremediation of Hexavalent Chromium Pollution by Sporosarcina saromensis M52 Isolated from Offshore Sediments in Xiamen, China / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>Cr(VI) removal from industrial effluents and sediments has attracted the attention of environmental researchers. In the present study, we aimed to isolate bacteria for Cr(VI) bioremediation from sediment samples and to optimize parameters of biodegradation.</p><p><b>METHODS</b>Strains with the ability to tolerate Cr(VI) were obtained by serial dilution and spread plate methods and characterized by morphology, 16S rDNA identification, and phylogenetic analysis. Cr(VI) was determined using the 1,5-diphenylcarbazide method, and the optimum pH and temperature for degradation were studied using a multiple-factor mixed experimental design. Statistical analysis methods were used to analyze the results.</p><p><b>RESULTS</b>Fifty-five strains were obtained, and one strain (Sporosarcina saromensis M52; patent application number: 201410819443.3) having the ability to tolerate 500 mg Cr(VI)/L was selected to optimize the degradation conditions. M52 was found be able to efficiently remove 50-200 mg Cr(VI)/L in 24 h, achieving the highest removal efficiency at pH 7.0-8.5 and 35 °C. Moreover, M52 could completely degrade 100 mg Cr(VI)/L at pH 8.0 and 35 °C in 24 h. The mechanism involved in the reduction of Cr(VI) was considered to be bioreduction rather than absorption.</p><p><b>CONCLUSION</b>The strong degradation ability of S. saromensis M52 and its advantageous functional characteristics support the potential use of this organism for bioremediation of heavy metal pollution.</p>

Recent advance in molecular genetics of polymicrogyria malformation / 中华神经医学杂志

Polymicrogyria (PMG) is one of the most common malformations of cortical development.It is characterized by overfolding of the cerebral cortex.Clinical manifestations of PMG mainly include epilepsy seizure,growth retardation,mental retardation,and cerebral palsy.Clinical diagnosis mainly depends on the finding of magnetic resonance imaging (MRI).In recent years,with the application of a new generation of sequencing technology,much progress has been made in terms of understanding of the genetic pathogenesis of PMG,especially the gene mutation of Tubulin gene family.This review summarizes the recent developments in the classification,clinical and imaging features,and etiologies,specifically focusing on how genetic advances are changing our understanding of PMG.

Phylogenetic and Molecular Analysis of an H7N7 Avian Influenza Virus Isolated in East Dongting Lake in 2012 / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>In March 2012, an H7N7 subtype avian influenza virus (AIV) named A/wild goose/Dongting/PC0360/2012 (H7N7) (DT/PC0360) was recovered from a wild goose in East Dongting Lake. We performed whole-genome sequencing of the isolate, and analyzed the phylogenetic and molecular characterization.</p><p><b>METHODS</b>RNA was extracted from environment samples (including fecal samples from wild bird or domestic ducks, and water samples) for detecting the presence of Influenza A Virus targeting Matrix gene, using realtime RT-PCR assay. The positive samples were performed virus isolation with embryonated eggs. The subtype of the isolates were identified by RT-PCR assay with the H1-H16 and N1-N9 primer set. The whole-genome sequencing of isolates were performed. Phylogenetic and molecular characterizations of the eight genes of the isolates were analyzed.</p><p><b>RESULTS</b>Our results suggested that all the eight gene segments of DT/PC0360 belonged to the Eurasian gene pool, and the HA gene were belonged to distinct sublineage with H7N9 AIV which caused outbreaks in Mainland China in 2013. The hemagglutinin cleavage site of HA of DT/PC0360 showed characterization of low pathogenic avian influenza virus.</p><p><b>CONCLUSION</b>Strengthening the surveillance of AIVs of wild waterfowl and poultry in this region is vital for our knowledge of the ecology and mechanism of transmission to prevent an influenza pandemic.</p>

Research progress on Chinese materia medica in overcoming EGFR-TKIs acquired drugs resistance through PI3K/Akt/mTOR pathway / 中草药

With in-depth study of the pathogenesis of lung cancer and its biological behaviour, molecular targeted therapy, especially the epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) made a breakthrough in non-small cell lung cancer treatment. However, the majority of patients can produce the resistance to EGFR-TKIs after 6 to 12 months treatment, which called acquired drug resistance. PI3K/Akt/mTOR pathway plays an important role in the development of non-small cell lung cancer, this pathway in cancer treatment has been widely studied. Chinese materia medica (CMM) in overcoming EGFR-TKIs resistance has a bright future, In this review, we show the developments on CMM in overcoming EGFR-TKIs acquired drugs resistance through PI3K/Akt/mTOR pathway.

Simultaneous determination of ten active ginsenosides in steamed notoginseng by UPLC / 中国中药杂志

A quantitative method using ultrahigh-performance liquid chromatography was established to simultaneously determine ten ginsenoside active ingredients including ginsenoside Rg6, F4, Rk3, Rh4, 20(S) -Rg3, 20(R) -Rg3, Rk1, Rg5, 20(S)-Rh2 and 20(R)-Rh2 in steamed notoginseng. The ten ginsenosides of steamed notoginseng with different head numbers, parts, and steaming time were determined by this method. An Acquity BEH C18 chromatographic column (2.1 mm x 100 mm, 1.7 microm) was used to perform the determination, which was maintained at 35 degrees C throughout the analysis. Mobile phase was composed of water and acetonitrile with flow rate at 0.3 mL x min(-1) under gradient elution, and detection wavelength was set to 203 nm for monitoring the separation. The results demonstrate ginsenoside Rg6, F4, Rk3, Rh4, 20 (S)-Rg3, 20 (R) -Rg3, Rk1, Rg5, 20 (S)-Rh2 and 20(R) -Rh2 have shown good linearity (R2 > or = 0.999 8) within 0.46-115, 2.06-515, 1.632408, 3.216-804, 1.392-348, 1.4-350, 0.496-248, 3.012-1 506, 0.82-205 and 0.832-208 mg x L(-1), and their average recoveries were 97.00%, 97.96%, 98.86%, 95.27%, 98.67%, 98.02%, 95.53%, 96.63%, 99.57% and 103.6%, respectively. The proposed approach was quick and accurate and portrayed excellent repeatability and determination efficiency. The quality of steamed notoginseng was effectively controlled, which served as a foundation for establishing a normalized processing technique and quality standard for ensuring the reliability and consistency of its clinical efficacy.

Influence of serum prolactin on interleukin-6 secretion by peripheral blood mononuclear cells in patients with systemic lupus erythematosus / 南方医科大学学报

<p><b>OBJECTIVE</b>To detect serum prolactin (PRL) level in patients with systemic lupus erythematosus (SLE) and its correlations to SLE activity and interleukin-6 (IL-6) by peripheral blood mononuclear cells (PBMCs).</p><p><b>METHODS</b>An electrochemiluminescence assay was employed to examine the serum content of PRL in 40 SLE patients and 20 healthy subjects, and the levels of IL-6 secretion by the PBMCs were detected using enzyme-linked immunosorbent assay.</p><p><b>RESULTS</b>SLE patients showed a significantly higher serum level of PRL than healthy subjects, which was especially obvious in the active stage of the disease (P=0.000. Serum PRL in SLE patients was found to positively correlate to SLE Disease Activity Index (SLEDAI) (r=0.568, P=0.000). SLE patients with hyperprolactinemia showed a significantly higher level of IL-6 secretion by the PBMCs than those with normal serum PRL level (P=0.000). IL-6 secretion by the PBMCs isolated from SLE patients with normal PRL level and from healthy controls, especially the latter, increased significantly after stimulation of the cells with recombinant human PRL in vitro (P=0.000).</p><p><b>CONCLUSION</b>Serum PRL may play a role in the pathogenesis of SLE. An elevated PRL level is closely related to SLE activity and can be used to assess SLE activity. Increased serum PRL level can up-regulate the secretion of IL-6 by the PBMCs.</p>

Helicobacter priori induces changes in the degranulation of mast ceils and the permeability of gastric mucosa in BALB/c mice / 中华皮肤科杂志

Objective To investigate the effect of Helicobacter pylori (Hp) on the degranulation of mast cells and the permeability of gastric mucosa in BALB/c mice, in order to provide further evidence for the important role of Hp in the pathogenesis of chronic urticaria (CU). Methods Seventy healthy BALB/c mice were randomly classified into 3 different groups, namely, Hp group (n = 30), fed with Hp liquid once every 3 days for a total of 7 times, and two control groups, alcohol group (n = 20) fed with 45 percent alcohol solution, and bovine serum albumin (BSA) group (n = 20) fed with BSA 2% solution. Alteration in the blood sucrose level was used to assess the permeability of gastric mucosa. Toluidine blue staining of gastric mucosa was used to assess the total number of mast cells, the amount of degranulated mast cells and the per-centage of degranulated cells after feeding. Results There was a statistically significant difference between the total number of mast cells (F = 207.59, P < 0.01 ) and the percentage of degranulated mast cells (F = 108.16, P <0.01 ) among the three groups, with the highest number and percentage observed in the Hp group followed by the alcohol group. In both groups, the concentration of blood sucrose was increased after feed-ing, with a higher increase in the alcohol group; no significant change occurred in the concentration of blood sucrose in the BSA group (F = -4.06, P > 0.05 ), which differed significantly from the other two groups (F =277.03, P< 0.01 ). Conclusions Hp infection could increase the number and degranulation of mast cells in gastric mucosa, resulting in the release of histamines and vasoactive mediators, which may be related to the manifestation of urticaria.

Biological characteristics of hydroxyapatite artificial eye mount / 中国组织工程研究

Hydroxyapatite artificial eye mount has no toxicity,no sensitization and good histocompatibility.Its porous structure is beneficial for the ingrowth of new vessels and fibrous tissues,thereby it is the main implant of orbital reconstruction following enucleation.With the wide application in clinics,hydroxyapatite artificial eye mount also show some complications such as conjunctival humbling,erosion,split and artificial eye mount exposure.There are many causes for these complications and the most one is the stimulation and wearing of orbital soft tissues induced by crude implants,as well as the delaying in vessels.Using autologous or variant tissue for covering or encapsulating the anterior artificial eye mount,the mount will be strengthen and become smooth,thereby reducing the friction.Autologous sclera is superior to other encapsulating materials.

Application of nucleic acid sequence-based amplification in detection of cytomegalovirus mRNA of recipients after allogeneic peripheral blood stem cell transplantation / 中国实验血液学杂志

The study was purposed to investigate diagnostic value of late-mRNA detection by nucleic acid sequence-based amplification (NASBA) technique for human cytomegalovirus (HCMV) infection of the recipients after allogeneic peripheral blood stem cell transplantation (allo-PBSCT) and to evaluate the clinical significance for guiding antiviral therapy. 352 samples were collected from 128 transplant patients after allo-PBSCT. A molecular biological diagnostic technique--NASBA was used to detect human cytomegalovirus (HCMV) late mRNA encoding the viral structural protein PP67 (UL65) expression in peripheral blood of recipients after allo-PBSCT, and the detected results were compared with HCMV DNA detection by PCR. The sensitivity, specificity and early diagnostic value of HCMV mRNA detection for HCMV disease were evaluated. The results showed that out of 352 detected blood specimens from 84 patients 183 specimens (51.99%) were positive of HCMV DNA by PCR, 105 specimens (29.83%) were positive of HCMV mRNA by NASBA. 45 patients were infected by HCMV. The sensitivity and specificity of HCMV DNA and HCMV mRNA for detecting HCMV disease were 95.56% (43/45), 93.33% (42/45) and 60.24% (50/83), 97.59% (81/83). The results of specificity showed significant difference between two groups of HCMV mRNA and HCMV DNA (P < 0.05). It is concluded that the detection of late-mRNA of HCMV by NASBA technique is rapid, sensitive and specific detection for HCMV active infection. The detected result correlates with clinical symptoms. It can monitor HCMV infection of allo-PBSCT transplanted recipients and provide indication to antiviral therapy.

Susceptibility analysis of mixed infection of ureaplasma urealyticum and mycoplasma hominis to eleven antibiotics / 重庆医科大学学报

67.5%);the drug residence rate to Azithuomycin was highest in UU+MH group(80%).②In UU+MH group,both the resistance rate to single antibiotics and the ability of resistance to several antibiotics were higher than UUgroup.Conclusion:①Minocycline was the first-choice drugs in clinical pharmacotherapy in genitourinary mycoplasma infection in Chongqing,while quinolones and azithuomycin were not suitable to be used as the first choice.②UU+MH mixed infection showed an increased drug resistance and changes of drug resistance spectrum.

Clinical features of 11 cases of renal cortical abscess / 中华全科医师杂志

Objective To explore methods of diagnostic and treatment for renal cortical abscess to reduce its misdiagnosis.Methods Eleven cases of renal cortical abscess diagnosed and treated at Beijing International Airport Hospital during 1991 to 2003 were reviewed and analyzed.Results Among the 11 patients with renal cortical abscess,diagnosis was established in nine(82%)before treatment,seven were cured by incision and drainage,one was cured by incision and drainage only after failure in percutaneous nephropuncture,and one was cured by intravenous injection of antibiotics.Two cases(18%)were misdiagnosed as renal cancer and radical nephrectomy were performed for them.Conclusions Diagnosis for renal cortical abscess should be based on combination of patients clinical manifestation,laboratory examinations and imaging findings.Incision and drainage is the choice of treatment for renal cortical abscess.