The role of mobile phone addiction and anxiety symptoms in the association between childhood psychological abuse and depressive symptoms among college students / 中国学校卫生

Objective@#To explore the role of mobile phone addiction and anxiety symptoms in the relationship between childhood psychological abuse and depressive symptoms among college students, in order to provide a basis for mental health promotion.@*Methods@#From February to May 2023, a stratified random sampling method was used to select 1 799 freshmen to juniors from a university in Wuhu City, Anhui Province. The questionnaire survey was conducted using the 2-item Patient Health Questionnaire (PHQ-2), Child Psychological Maltreatment Scale (CPMS), Mobile Phone Addiction Tendency Scale (MPATS), 2-item General Anxiety Disorder (GAD-2). Correlations among each variable were analyzed, and the chain mediating effect of mobile phone addiction and anxiety symptoms was explored.@*Results@#The detection rate of depressive symptoms among college students was 9.7%, and the positive detection rate of childhood psychological abuse was 28.6%. Depressive symptoms were positively correlated with childhood psychological abuse, mobile phone addiction and anxiety symptoms ( r =0.28, 0.32, 0.27, P <0.01). Childhood psychological abuse was positively correlated with mobile phone addiction and anxiety symptoms ( r =0.29, 0.71, P <0.01). Mobile phone addiction and anxiety symptoms were positively correlated ( r =0.30, P <0.01). Childhood psychological abuse could effectively predict depressiove symptoms, mobile phone addiction and anxiety symptoms ( β =0.08, 0.06, 0.66, P <0.01). Mobile phone addiction and anxiety symptoms had a chain mediating effect between childhood psychological abuse and depression symptoms, with a total indirect mediating effect (effect=25.27%, P <0.05), accounting for 72.44% of the total effect.@*Conclusions@#Mobile phone addiction and anxiety symptoms play a chain mediating role between childhood psychological abuse and depressive symptoms. Focusing on childhood psychological abuse, mobile phone addiction and anxiety among college students are beneficial for depression symptoms prevention.

mTORC1 signaling pathway regulates tooth repair / 国际口腔科学杂志·英文版

Tooth germ injury can lead to abnormal tooth development and even tooth loss, affecting various aspects of the stomatognathic system including form, function, and appearance. However, the research about tooth germ injury model on cellular and molecule mechanism of tooth germ repair is still very limited. Therefore, it is of great importance for the prevention and treatment of tooth germ injury to study the important mechanism of tooth germ repair by a tooth germ injury model. Here, we constructed a Tg(dlx2b:Dendra2-NTR) transgenic line that labeled tooth germ specifically. Taking advantage of the NTR/Mtz system, the dlx2b+ tooth germ cells were depleted by Mtz effectively. The process of tooth germ repair was evaluated by antibody staining, in situ hybridization, EdU staining and alizarin red staining. The severely injured tooth germ was repaired in several days after Mtz treatment was stopped. In the early stage of tooth germ repair, the expression of phosphorylated 4E-BP1 was increased, indicating that mTORC1 is activated. Inhibition of mTORC1 signaling in vitro or knockdown of mTORC1 signaling in vivo could inhibit the repair of injured tooth germ. Normally, mouse incisors were repaired after damage, but inhibition/promotion of mTORC1 signaling inhibited/promoted this repair progress. Overall, we are the first to construct a stable and repeatable repair model of severe tooth germ injury, and our results reveal that mTORC1 signaling plays a crucial role during tooth germ repair, providing a potential target for clinical treatment of tooth germ injury.

Jianpi Peiyuan acupoint thread embedding therapy for perimenopausal obesity: a randomized controlled trial / 中国针灸

OBJECTIVE@#To observe the clinical efficacy and safety of Jianpi Peiyuan acupoint thread embedding therapy on perimenopausal obesity (PMO).@*METHODS@#Ninety-six patients of PMO were randomly divided into an observation group (48 cases) and a control group (48 cases). The control group received health education and lifestyle intervention. On the basis of the treatment in the control group, the observation group was treated with acupoint thread embedding at the main acupoints of Shangwan (CV 13), Zhongwan (CV 12), Xiawan (CV 10), Yinlingquan (SP 9) and Fenglong (ST 40), etc. as well as the supplementary acupoints in accordance with the syndrome differentiation, once every 2 weeks for 8 weeks (4 times in total). The indexes of obesity (body mass index [BMI], waist circumference, hip circumference and body mass), modified Kupperman score, insomnia severity index (ISI) score, self-rating anxiety scale (SAS) score, and self-rating depression scale (SDS) score of the two groups were observed before and after treatment, and the safety was evaluated.@*RESULTS@#After treatment, BMI, waist circumference, hip circumference and body mass in the two groups were lower than before treatment (P<0.05), and those in the observation group were lower than the control group (P<0.05). After treatment, Kupperman, ISI and SAS scores in the observation group were lower than before treatment (P<0.05), and ISI score in the control group was lower than before treatment (P<0.05). Kupperman, ISI and SAS scores in the observation group were lower than those in the control group (P<0.05). There was no significant difference in SDS between the two groups or within groups (P>0.05). No serious adverse reactions occurred during the experiment.@*CONCLUSION@#Jianpi Peiyuan acupoint thread embedding therapy can reduce the degree of obesity in PMO patients, and improve patients' the perimenopausal symptoms, insomnia and anxiety, with good safety.

Comparison of HPLC fingerprints and determination of main components of Viticis Fructus from different species / 中国中药杂志

In order to comprehensively evaluate the quality of Viticis Fructus, this study established HPLC fingerprints and evaluated the quality of 24 batches of Viticis Fructus samples from different species by similarity evaluation and multivariate statistical analysis(PCA, HCA, PLS-DA). On this basis, an HPLC method was established to compare the content differences of the main components, including casticin, agnuside, homoorientin, and p-hydroxybenzoic acid. The analysis was performed on the chromatographic column(Waters Symmetry C_(18)) with a gradient mobile phase of acetonitrile(A)-0.05% phosphoric acid solution(B) at the flow rate of 1 mL·min~(-1) and detection wavelength of 258 nm. The column temperature was 30 ℃ and the injection volume was 10 μL. The HPLC fingerprint of 24 batches of Viticis Fructus samples was established with 21 common peaks, and nine peaks were identified. Similarity analysis was carried out based on chromatographic data of 24 batches of chromatographic data of Viticis Fructus, and the results showed that except for DYMJ-16, the similarity of Vitex trifolia var. simplicifolia was ≥0.900, while that of V. trifolia was ≤0.864. In addition, the similarity analysis of two different species showed that the similarity of 16 batches of V. trifolia var. simplicifolia was 0.894-0.997 and that of the eight batches of V. trifolia was between 0.990 and 0.997. The results showed that the similarity of fingerprints of these two species was different, but the similarity between the same species was good. The results of the three multivariate statistical analyses were consistent, which could distinguish the two different species. The VIP analysis results of PLS-DA showed that casticin and agnuside contributed the most to the distinction. The content determination results showed that there was no significant difference in the content of homoorientin and p-hydroxybenzoic acid in Viticis Fructus from different species, but the content of casticin and agnuside was significantly different in different species(P<0.01). The content of casticin was higher in V. trifolia var. simplicifolia, while agnuside was higher in V. trifolia. The findings of this study show that there are differences in fingerprint similarity and component content of Viticis Fructus from different species, which can provide references for the in-depth study of the quality and clinical application of Viticis Fructus.

IARS2 regulates proliferation, migration, and angiogenesis of human umbilical vein endothelial cells

SUMMARY OBJECTIVE: In this study, we aimed at investigating the role of isoleucyl-tRNA synthetase in the growth, migration, and angiogenesis of human umbilical vein endothelial cells and the underlying molecular mechanism. METHODS: To assess the role of isoleucyl-tRNA synthetase, we silenced isoleucyl-tRNA synthetase in human umbilical vein endothelial cells using lentiviral 2 specific short hairpin RNAs (short hairpin RNAs 1 and 2) and examined silencing efficiency using real time quantitative polymerase chain reaction and western blot analyses. Short hairpin RNAs 1-isoleucyl-tRNA synthetase had greater knockdown efficiency, it was used in the entire downstream analysis. Short hairpin RNAs 1- isoleucyl-tRNA synthetase silencing effects on cell proliferation, cell colony generation, cell migration, as well as angiogenesis were assessed using cell counting kit-8, colony development, cell migration, and angiogenesis tube formation assays, respectively. RESULTS: Compared to the control group, anti-isoleucyl-tRNA synthetase short hairpin RNAs significantly silenced isoleucyl-tRNA synthetase expression in human umbilical vein endothelial cells, and suppressed their proliferation, migration, and angiogenic capacity. To characterize the underlying mechanism, western blot analyses showed that isoleucyl-tRNA synthetase knockdown suppressed phosphorylation of extracellular-regulated kinase ½ and protein-serine- threonine kinase, as well as expression of vascular endothelial growth factor, GSK-3β, and β-catenin. CONCLUSIONS: We have shown, for the first time, the critical role of isoleucyl-tRNA synthetase in human umbilical vein endothelial cells. Our data show that isoleucyl-tRNA synthetase knockdown suppresses human umbilical vein endothelial cell proliferation, migration, and angiogenesis. We have also shown that isoleucyl-tRNA synthetase knockdown suppresses phosphorylation of extracellular-regulated kinase ½ and protein-serine- threonine kinase, as well as expression of vascular endothelial growth factor, GSK-3β, and β-catenin. Together, these data highlight isoleucyl-tRNA synthetase as a potential antitumor anti-angiogenic target.

A comparative cross-sectional study of Chinese and American lung caner drug trial in 2019 / 中国胸心血管外科临床杂志

@#Objective    To compare the current status of clinical studies regarding lung cancer between China and the United States in 2019, and to indicate the weakness, trend and future development direction of clinical studies drug treatment in China. Methods    The data of lung cancer clinical studies from January 1st to November 30th, 2019 in China and the United States were retrieved and analyzed through Informa pharmaprojects database. Results    The United States was superior on the number of projects (128 vs. 156) and research institutions (743 vs. 2 250). Compared with the United State, there were more phase Ⅲ confirmatory researches (19.5% vs. 10.3%), bioequivalent drug researches (3.1% vs. 0%), and researches initiated by academic institutions (39.8% vs. 28.1%) in China. The United States exhibited advantages in phaseⅠ andⅠ/Ⅱstudies (25.8% vs. 60.3%), immunodrugs (49.2% vs. 60.3%), primary tested drug ratio (61.7% vs. 93.6%), targets abundance (32.9% vs. 69.6%), and chimeric antigen receptor-T (CAR-T, 0.7% vs. 7.1%). Conclusion    Compared with the United States, China should pay more attention to innovative drug investigations in early phase of clinical studies, especially novel immune agents, vaccines, and CAR-T.

Preliminary bioinformatics analyses of the expression and function of AGR2 in human breast cancer / 中国肿瘤生物治疗杂志

@#Objective: To explore the expression of AGR2 gene in breast cancer as well as to predict its relevant biological functions and molecular signaling pathways with bioinformatics tool. Methods: The expression of AGR2 in breast cancer tissues and normal tissues was analyzed in Oncomine and GEPIA databases, and the expression of AGR2 in breast cancer cell lines was evaluated in CCLE database. Meanwhile, HPA database was used to analyze the expression of AGR2 protein in normal and breast cancer tissues. Besides, the gene expression microarray data download from CCLE database was analyzed by using R software to obtain genes co-expressed withAGR2. Functional annotation ofAGR2 co-expressed genes was performed by using GO Enrichment and KEGG pathway analyses. Results: Oncomine and GEPIA databases showed that AGR2 gene was highly expressed in breast cancer tissues, and CCLE database analysis showed that AGR2 was highly expressed in all breast cancer cell lines. Immunohistochemistry results from the HPA database showed that the expression of AGR2 protein was significantly higher in breast cancer tissues compared with normal tissues. A total of 946 genes co-expressed with AGR2 in breast cancer were screened out with the R software. With the GO function Enrichment analysis, the co-expressed genes were demonstrated to be mainly involved in biological functions, such as protein localization to cell periphery, protein localization to plasma membrane, cell junction assembly, cell-substrate adhesion, and cell junction organization etc. In addition, the KEGG analysis results showed that co-expressed genes were mainly involved in the progression of gastric cancer and breast cancer, and were associated with proteoglycans in cancer, as well as proline, leucine and isoleucine degradation pathways. Conclusions:AGR2 is highly expressed in breast cancer tissues, which may be a potential oncogenic gene and a new therapeutic target of breast cancer.

The prevent miscarriage effects of Yun Kang oral liquid on threatened abortion rat induced by kidney deficiency and luteum inhibition / 中国应用生理学杂志

OBJECTIVE@#Yun Kang oral liquid is a listed proprietary Chinese Medicine. To further evaluate its efficacy, this experiment established a kidney deficiency and luteum inhibition threatened abortion rat model to observe the effects of Yun Kang oral liquid.@*METHODS@#Sixty pregnant rats were randomly divided into normal control group (NC), model group (MG), dydrogesterone group (DT, 3.02 mg/kg), and Yun Kang oral liquid low-dose group (YK-L, 4 ml/kg), medium dose group (YK-M, 6 ml/kg), high dose group (YK-H, 9 ml/kg), 10 in each group. On the first day of pregnancy, each administration group was treated with the test drug at the prescribed dose every morning, and the NC group and the MG group were given an equal volume of purified water for 10 days; the rats were intragastrically administrated every afternoon, except for the NC group. In addition, the other groups were intragastrically administered with hydroxyurea at a dose of 450 mg/kg for 9 days, and mifepristone was administered at a dose of 4.0 mg/kg on the 10th day. On the 9th day of pregnancy, behavioral signs such as back temperature, grasping force, pain threshold, and autonomic activity were measured in each group. On the 11th day of pregnancy, blood was collected from the abdominal aorta in each group to determine serum levels of estradiol (E) , progesterone (P) and thromboxane B (TXB) . Ovary and fetal uterus were removed, the number and diameter of embryos were observed, and the ovary and uterus indexes were calculated.@*RESULTS@#Compared with the NC group, the back temperature, grip, pain threshold, number of spontaneous activities, number of embryos, embryo diameter, uterus index and serum E, P, TXB levels in the MG group were decreased significantly (P＜0.05, 0.01). Compared with the MG group, the back temperature, grasping force, number of embryos, embryo diameter and serum E and P levels were increased significantly in each dose group (P＜0.05, 0.01); the pain threshold, autonomic activity, and uterus index of YK-M and YK-H group were increased significantly (P＜0.05); serum level of TXB in YK-H group were increased significantly (P＜0.05).@*CONCLUSION@#Yun Kang oral liquid has a clear kidney-filling effect on rats with threatened abortion caused by kidney deficiency-luteal suppression. The mechanism may be related to raising serum E, P, TXB levels, improving kidney deficiency and improving embryo quality.

Fire-needle acupuncture for upper limb spastic paralysis after stroke: Study protocol for a randomized controlled trial / 中西医结合学报

BACKGROUND@#Fire-needle acupuncture, an important kind of acupuncture therapy, has been clinically used to treat upper limb spastic paralysis (ULSP) after stroke. Clinical experience has indicated that fire-needle acupuncture treatment takes less time, requires fewer visits, and has more rapid results and fewer side effects compared to chemical medicine alternatives. This study will evaluate the effects of fire-needle acupuncture for ULSP in the context of standardized clinical research and provide high-quality data to inform clinical procedures and future study design.@*METHODS/DESIGN@#A randomized controlled trial will be carried out to evaluate the effects of fire-needle acupuncture therapy in patients with ULSP from stroke. ULSP patients (n = 120) will be recruited at Changhai Hospital in Shanghai, China. Patients will be randomly divided into three groups, including fire-needle acupuncture group (FAG), filiform-needle acupuncture group (FFAG) and rehabilitation treatment group (RTG). During the 3-week treatment, the FAG will be treated every two days, while FFAG and RTG will be treated 5 d in a row and then rest for 2 d. The Simplified Fugl-Meyer Motor Function Scale and Modified Ashworth Scale will be used as the primary outcome measures. Statistical analysis will be conducted by an independent statistician.@*DISCUSSION@#Through this study, the utility of fire-needle acupuncture in treating ULSP after stroke will be tested, and some specific claims of fire-needle acupuncture therapy will be evaluated, such as relieving spasm and muscular tension, improving activities of daily living, rapidity of response and less frequency of treatment compared with other treatments.@*TRIAL REGISTRATION@#Chinese Clinical Trial Registry (identifier: ChiCTR-IOR-17013875; registration date: 28 December 2016).

Surgical treatment and prognostic analysis of thymic carcinoma: a report of 38 cases / 中国胸心血管外科临床杂志

@#Objective    To evaluate the influence of clinical, pathological and treatment factors on the prognosis of thymic carcinoma patient accepted surgical treatment. Methods    Retrospective analysis was performed on 38 patients with thymic carcinoma undergoing surgical treatment between January 2008 and December 2017. The association between the prognostic factors including age, sex, thymectomy, radical resection, pathological type, TNM stage, Masaoka-Koga stage, tumor size, and survival was assessed using the Kaplan-Meier method. Results    The 5-year overall survival rate of our cohort was 51.9%. Kaplan-Meier univariate survival analysis showed that radical resection (P=0.003), TNM stage (P=0.038), Masaoka-Koga stage (P=0.033), and tumor size (P=0.030) were related to the prognosis of patients with thymic carcinoma. Radical resection was also validated as an independent prognostic factor in multivariate Cox analysis (P=0.009, hazard ratio 2.31, 95%CI 1.23-4.33). Conclusion    Radical surgical treatment could improve the prognosis of patients with resectable thymic carcinoma.

Id1 and Id3 synergistically influence invasion and migration of colon cancer SW620 cells by inducing EMT / 中国肿瘤生物治疗杂志

@# Objective: To investigate whether inhibitor of differentiation 1 gene (Id1) and Id3 gene can synergistically promote epithelial-mesenchymal transition (EMT), invasion and migration of colon cancer SW620 cells and to explore its underlying mechanisms. Methods: The SW620 cell strain with Idl or Id3 gene knockdown and the SW620 cell strain with Id1/Id3 gene double-knockdown were constructed by lentiviral vectors transfection. The SW620 cells were divided into four groups, which included SW620-Sh-Id1 group (transfected with shRNA-Id1), SW620-Sh-Id3 group (transfected with shRNA-Id3), SW620-Sh-Id1-Id3 group (transfected with shRNAId1 plus shRNA-Id3) and SW620-NC group (transfected with negative lentivirus). The efficiency of knockdown was detected by Realtime qPCR and Western blotting. The influence of stable knockdown of Idl or Id3 on cell morphological change was observed under a microscope. The changes of migration and invasion abilities of the SW620 cells were determined by wound healing assay and Transwell assay. EMT, invasion and migration related proteins were measured by Western blotting. Results: The SW620 cell strains with Idl and/or Id3 gene knockdown were successfully constructed. Idl and Id3 knockdown induced the epithelial-like to the mesenchymanl-like transformation of SW620 cells. (1) Compared with the control group, the invasion and migration abilities of the SW620 cells were significantly decreased in the SW620-Sh-Id1 group and SW620-Sh-Id3 group (all P<0.05). (2) Meanwhile, the invasion and migration abilities in the SW620-Sh-Id1-Id3 group were obviously weaker than the SW620-Sh-Id1 group and SW620-Sh-Id3 group (all P<0.05). (3) Compared with the control group, the SW620-Sh-Id1 group and SW620-Sh-Id3 group had a reduction in the protein expressions of βcatenin, snail1 and MMP2, and an increase in the protein expressions of E-cadherin and TIMP2 (all P<0.05). (4) Compared with the SW620-Sh-Id1 group and SW620-Sh-Id3 group , the protein expressions of β-catenin, snail1 and MMP2 were reduced, and the protein expressions of E-cadherin and TIMP2 were increased in the SW620-Sh-Id1-Id3 group (all P<0.05). Conclusion: Id1 and Id3 could synergistically influence invasion and migration of SW620 cells, possibly through inducing EMT.

U-shape titanium screw-rod fixation system with bone grafting for the treatment of pure lumbar spondylolysis / 中国组织工程研究

BACKGROUND: When conservative treatment of pure lumbar spondylolysis is ineffective, segmental fixation and bone grafting is a commonly used method. However, surgical methods are various, and have some controversies. OBJECTIVE: To investigate the effectiveness of U-shape titanium screw-rod fixation system with bone grafting for pure lumbar spondylolysis. METHODS: Data from 15 patients with pure lumbar spondylolysis or without mild spondylolisthesis, who were treated with U-shape titanium screw-rod fixation system and bone grafting in the Department of Orthopedics of Jinan Military General Hospital from May 2012 to May 2016, were retrospectively reviewed. Operation time, intraoperative blood loss and postoperative drainage were observed. The lumbar spine X-ray, CT, Visual Analogue Scale and Oswestry Disability Index were compared before operation, 3, 6 and 12 months after operation. RESULTS AND CONCLUSION: (1) The operation time was (115.0±18.8) minutes, the intraoperative blood loss was (280.0±84.3) mL, and the postoperative drainage was (61.0±19.6) mL. (2) By Visual Analogue Scale and Oswestry Disability Index during following-up, pain symptoms and function were significantly improved (P < 0.05). (3) No secondary spondylolisthesis, adjacent vertebral degeneration, internal fixation fracture, loosening, infection or nerve injury occurred during the follow-up. (4) All patients had bony union. The healing time range was 6-12 months, with an average of 8.2 months. (5) In summary, U-shape titanium screw-rod fixation system with bone grafting is a good choice for the treatment of pure lumbar spondylolysis.

Effects of 5HT1A Activation on Gating Profile Following 5HT Depletion in Rats Lacking Social Attachment Since Weanling

OBJECTIVE: Central 5-HT1A receptor is involved in the modulation of sensorimotor gating function. However, its precise role is not clearly defined in developmentally social deprived (isolation rearing, IR) rats featured with impaired sensorimotor gating ability. We therefore aimed to examine the effects of 5HT1A activation on acoustic startle response (ASR) and prepulse inhibition (PPI) in IR rats in a condition of compromised presynaptic 5-HT functions. METHODS: Social control (SOC) and IR rats received an intracerebraoventricular (ICV) injection of 5-HT depletor, 5,7-DHT. Seven days later rats entered a protocol of 8-OH-DPAT, a 5-HT1A agonist, in which locomotor activity, ASR and PPI and their tissue levels of 5-HT were measured. RESULTS: Our results found that both IR and 5,7-DHT decreased the tissue concentration of 5-HT. IR-induced hyperactivity and gating impairment were unaffected by 5-HT depletion. 8-OH-DPAT strengthened the ASR in IR but not SOC rats and the drug-reduced PPI could be adjusted by 5,7-DHT pretreatment. 8-OH-DPAT at 100 μg/kg enhanced PPI in 5-HT-depleted SOC rats. However for IR rats, 8-OH-DPAT strengthened PPI in sham rats but downgraded it in depletion condition. CONCLUSION: The integrity of central 5-HT system is important to 5-HT1A-modulated sensorimotor gating in isolation-reared rats.

Effect and mechanism of Yunkang oral liquid in regulating endocrine system and VEGF signaling pathway and reducing abortion rate in recurrent abortion mice / 中国中药杂志

This experiment focuses on the effect of Yunkang oral liquid on abortion rate, endocrine system and VEGF signal pathway in Clark classical recurrent abortion model mice. RSA mice were randomly divded into model group, low, middle and high-dose groups and progesterone group. The normal pregnancy mice were included into normal group. Since the first day of pregnancy, the normal group and the RSA model group were given the same dose of distilled water, while low, middle and high-dose groups were given Yunkang oral liquid at the dose of 9, 18, 36 mL·kg¹·d⁻¹; progesterone group were given progesterone by 0.039 g·kg¹·d⁻¹. The mice were put to deathat the 15th day of pregnancy, and the embryo loss rate of each group was observed. Serum estradiol (E₂), progesterone (P), prolactin (PRL), luteinizing hormone (LH), follicle stimulating hormone (FSH) level were tested; the protein expressions of estrogen receptor(ER), progesterone receptor (PR), prolactin receptor (PRLR) in decidua and RAS, MAPK, VEGF, VEGFR-2 gene and protein expressions in deciduas were studied. The results showed that middle, high dose Yunkang and progesterone could significantly decrease the embryo loss rate of RSA mice. The levels of FSH, LH, PRL, P and E₂ in serum in Yunkang and progesterone groups were increased, and the serum levels of FSH, LH, and E₂ in Yunkang group were higher than those in progesterone group. Western blot analysis showed that Yunkang oral liquid and progesterone can significantly increase the expressions of PRLR, PR in the uterine decidua of RSA mice, and the expression of ER in Yunkang group was higher than that in progesterone group. Western blot and PCR showed that the Yunkang oral liquid and progesterone can significantly increase RAS, MAPK, VEGF, VEGFR-2 gene and protein expressions in the uterine decidua of RSA mice. The results showed that Yunkang oral liquid can effectively reduce the embryo loss rate of RSA model mice, increase the levels of FSH, LH, PRL, P and E₂ in serum, promote the expressions of PRLR, PR, ER protein in decidua and the RAS, MAPK, VEGF, VEGFR-2 gene and protein expressions in the decidua, improve the vascular remodeling of fetal interface, the endometrial receptivty, the development of decidua and the blastocyst implantation.

Efficacy of compound Dendrobium on PI3K/AKT/eNOS signaling pathway in hypertensive rats induced by "dietary disorders" / 中国中药杂志

To observe the efficacy of compound Dendrobium on Sprague Dawley rats (SD) hypertension model induced by "dietary disorders" and its relevant mechanism, totally 50 SD rats were fed with high-sugar, high-fat diet and alcohol for four weeks. According to the blood pressure after modeling, the rats were divided into model group, valsartan group (8 mg·kg⁻¹), low, medium and high-dose Dendrobium candidum compound groups (1.65, 3.30, 5.00 g·kg⁻¹), with 10 rats in each group, and the other 10 SD rats were also taken as the normal group. After four weeks of treatment, blood pressure was measured. Orbital blood was collected for the determination of serum cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-c), high-density lipoprotein cholesterol (HDL), calculation of atherosclerosis index (AI). Nitric acid reductase method was used to detect serum nitric oxide (NO); the levels of serum endothelin-1 (ET-1) and intercellular adhesion molecule-1 (ICAM-1) were measured by ELISA. The rats were put to death after the last administration, and the protein expressions of PI3K/AKT/eNOS in thoracic aorta of rats in each group were detected by Western blot. The aorta was separated and stained with hematoxylin-eosin (HE) to observe the changes in the endothelium and blood vessels in the thoracic aorta. Masson staining was used to observe the formation of aortic collagen. The expressions of nitric oxide synthase (eNOS) and ICAM-1 in aortic endothelial cells were observed by immunohistochemistry. In contrast, the results show D. candidum compound can significantly reduce the blood pressure in hypertensive rats, increase HDL-c, and reduce AI, while increasing serum NO content, decreasing ET-1 and ICAM-1 levels and promoting PI3K/AKT/NOS protein expressions. The lesion degree of the D. candidum compound group was reduced, and the collagen deposition was significantly reduced. Meanwhile, D. candidum compound can significantly increase the expression of eNOS, and reduce the formation of ICAM-1.Therefore, D. candidum compound has an obvious antihypertensive effect on hypertensive rats, which may be related to the increase in PI3K/AKT/eNOS signaling pathways and NO generation, the inhibition of the secretion of ICAM-1 and ET-1, the protection of the vascular endothelium and the improvement of aortic disease.

The predictive value of tumor-infiltrating lymphocytes in patients with breast cancer treated with neoadjuvant chemotherapy / 中国肿瘤临床

Objective:To analyze the predictive value of tumor-infiltrating lymphocyte (TIL) fraction in patients with breast cancer treat-ed with neoadjuvant chemotherapy. Methods: Clinicopathological data of 156 female patients with breast cancer diagnosed using core needle biopsy and treated with neoadjuvant chemotherapy and surgery between November 2015 and April 2017 in Tianjin Medi-cal Uninvertity Cancer Institute and Hospital were retrospectively analyzed. Patients were assigned into 3 groups based on the TIL frac-tim, namely high, intermediate and low TIL fractin gronp. The response to neoadjuvant chemotherapy was evaluated using the histo-pathological criteria for assessment of therapeutic response in breast cancer. The relation between TIL fraction and response to neoad-juvant chemotherapy was then analyzed. Results:Neoadjuvant chemotherapy was effective in 78.2%(122/156) of the patients. Pa-tients harboring tumors with a higher TIL fraction were more likely to achieve a better response to neoadjuvant chemotherapy than those harboring tumors with a lower TIL fraction (P<0.01). Patients harboring hormonal receptor (HR)-negative tumors generally exhib-ited a higher TIL fraction than those harboring HR-positive tumors (P<0.01). The TIL fraction, but not HR status, human epidermal growth factor receptor 2 (HER-2) status, or Ki-67 index, correlated with response to neoadjuvant chemotherapy. Conclusion:TIL frac-tion is an independent predictive factor of response to neoadjuvant chemotherapy in patients with breast cancer. Patients with breast cancer exhibiting higher TIL fraction achieve better response to neoadjuvant chemotherapy than those exhibiting lower TIL fraction.

Whole Lung Lavage Treatment of Chinese Patients with Autoimmune Pulmonary Alveolar Proteinosis: A Retrospective Long-term Follow-up Study / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Pulmonary alveolar proteinosis (PAP) is a rare lung disease, the most common type of which is autoimmune PAP. The gold standard therapy for PAP is whole lung lavage (WLL). Few studies have reported the optimal technique with which to evaluate the response to WLL. In this study, we aimed to identify parameters with which to assess the need for repeat WLL during a long-term 8-year follow-up.</p><p><b>METHODS</b>We conducted a retrospective analysis of 120 patients with autoimmune PAP with 80 of whom underwent WLL. Physiologic, serologic, and radiologic features of the patients were analyzed during an 8-year follow-up after the first WLL treatment.</p><p><b>RESULTS</b>Of the 40 patients without any intervention, 39 patients either achieved remission or remained stable and only one died of pulmonary infection. Of the 56 patients who underwent WLL for 1 time, 55 remained free from a second WLL and 1 patient died of cancer. Twenty-four required additional treatments after their first WLL. The baseline PaO 2 (P = 0.000), PA-aO 2 (P = 0.000), shunt fraction rate (P = 0.001), percent of predicted normal diffusing capacity of the lung for carbon monoxide (DLCO%Pred) (P = 0.016), 6-min walk test (P = 0.013), carcinoembryonic antigen (CEA) (P = 0.007), and neuron-specific enolase (NSE) (P = 0.003) showed significant differences among the three groups. The need for a second WLL was significantly associated with PaO 2 (P = 0.000), CEA (P = 0.050) , the 6-minute walk test (P = 0.026), and DLCO%Pred (P = 0.041). The DLCO%Pred on admission with a cut-off value of 42.1% (P = 0.001) may help to distinguish whether patients with PAP require a second WLL.</p><p><b>CONCLUSIONS</b>WLL is the optimal treatment method for PAP and provides remarkable improvements for affected patients. The DLCO%Pred on admission with a cut-off value of 42.1% may distinguish whether patients with PAP require a second WLL.</p>

Effects of P2X4 receptor in spinal microglia on rrTNF-induced pathologi-cal pain / 中国病理生理杂志

AIM:To investigate the effects of P2X4 receptor on peri-sciatic administration of recombinant rat TNF-α(rrTNF)-induced mechanical allodynia.METHODS:Male Sprague-Dawley rats (180~200 g) were used in the experiments.The levels of P2X4 receptor on day 3, day 7 and day 14 after peri-sciatic administration of rrTNF were exam-ined by Western blot, and the location of P2X4 receptor in the spinal dorsal horn was observed by double immunofluores-cence staining.The changes of 50%paw-withdrawal thresholds of the rat were detected by behavioral test, and the level of TNF-αin the spinal dorsal horn was also examined by Western blot when TNP-ATP was intrathecally injected before the ad-ministration of rrTNF.RESULTS:Compared with control group, the expression of P2X4 receptor in the spinal dorsal horn on the ipsilateral side significantly increased on day 3, day 7 and day 14 (P<0.01) after rrTNF (100 ng/L) administra-tion.P2X4 receptor was co-localized only with microglia, but not with neurons or astrocytes.Intrathecal injection of TNP-ATP before rrTNF administration prevented mechanical allodynia induced by rrTNF and inhibited the upregulation of TNF-αin the spinal dorsal horn.CONCLUSION:P2X4 receptors in microglia may be involved in rrTNF-induced mechanical allodynia by the upregulation of TNF-αin the spinal dorsal horn.

Design of ABC damage variable and positioning system for acetabular fractures and 1122 cases multi-center statistic analysis / 中国骨伤

<p><b>OBJECTIVE</b>To design ABC damage variable and positioning system for acetabular fracture and explore the feasibility and clinical practical value of the system through the multi-center analysis of 1122 acetabular fractures.</p><p><b>METHODS</b>According to acetabular three-column conception, and pelvic ring lesions damage direction caused by acetabular fracture domino effect and injury degree of proximal femur joint, it defined class A as any column acetabular fracture; class B as any two-column acetabular fracture; class C as front, dome and posterior mixture acetabular fracture. Lower case English letters a, m, p represented front, dome, posterior fracture, respectively. Acetabular damage variables: 1 was simple displaced fractures; 2 was comminuted fractures; 3 was compression fractures. Pelvic ring lesions damage variables: alpha was sacroiliac joints or sacroiliac fracture horizontal separation deflection; beta was sacroiliac joints or sacroiliac fracture vertical separation deflection; gamma was pubic symphysis separation/superior and inferior ramus of pubis fracture deflection; alpha beta gamma delta was compound floating damage. Proximal humerus joint damage variables: I was femoral head fracture; II was femoral neck fracture; II was intertrochanteric fractures of femur; IV was I to III compound fracture. The ABC damage variable positioning system for acetabular fracture was made up by the above-mentioned variables. The statistics from March 1997 to February 2010 showed 1122 cases acetabular fractures with 18 cases of double side acetabular fracture and 1140 cases of acetabular fractures. The pelvics anterior-posterior view, ilium and obturator oblique view, and 2/3D-CT materials were analyzed and researched.</p><p><b>RESULTS</b>Each damage variables distribution situation in 1140 cases of acetabular fracture involved A in 237 cases (20.8%), B in 605 cases (53.1%), C in 298 cases (26.1%);front column fracture in 808 cases(70.9%), dome fracture in 507 cases (44.5%), posterior fracture in 1026 cases (90%). Acetabular variables: variabe 1 in 203 cases of simple displaced fracture (17.8%); variabe 2 in 516 cases of comminuted fracture(45.3%); variabe 3 in 421 cases of compression fracture (36.9%); 249 cases of pelvic ring lesions damage (21.8%), 75 cases femoral head fracture (6.6%); 18 cases of double side acetabular fracture and relative pelvic ring and proximal humerus joint variables (1.58%). Key part and curative effect elements of 1140 cases acetabular fracture: 507 cases of dome or posterior acetabular fracture (44.5%); 421 cases of compression fracture (36.9%); 249 cases of pelvic ring variables (21.8%); 75 cases of proximal humerus joint variables (6.6%); 486 cases of simple Aa/pl/2,Bapl/2 acetabular fracture (42.6% ).</p><p><b>CONCLUSION</b>Compression fracture, especially defected compression fracture, takes important part in acetabular damage variables, and also presents that acetabular fracture with pelvic ring and proximal femoral damage variables are not rare at all. The relationship of the acetabular fracture damage variables, and its percentage shows the key points and elements in clinical treatment: weight-bearing to dome accounts for 44.5%; compression to defects account for 36.9%, pelvic ring to float accounts for 21.8%; dome fracture to double side fracture account for 6.6%. The system has significant guiding effects on clinic in terms of evaluation of injury severity, anatomic localization, difficulty index, alternative strategy, operative approach, effect of treatment,and prognosis. And the most important thing is that the system creates the comparison of damage variables in same type of fracture and the communication of homo-language and explores a new method.</p>

The impact of mitral valve morphology on the short and long-term outcome post percutaneous balloon mitral valvuloplasty in patients with mitral valve stenosis / 中华心血管病杂志

<p><b>OBJECTIVE</b>To investigate the short and long-term outcome post percutaneous balloon mitral valvuloplasty (PBMV) in mitral valve stenosis patients with different mitral valve morphology.</p><p><b>METHODS</b>Mitral valve morphology was graded according to the Wilkins scoring system, 385 eligible patients were divided into echocardiographic scores > 8 group (n = 125) and ≤ 8 group (n = 260). Patients were followed up after PBMV according to the improved Inoue method.</p><p><b>RESULTS</b>PBMV was successful in 370 patients, the success rate of PBMV in > 8 group was significantly lower than in ≤ 8 group (92.8% vs. 97.7%, P < 0.05). Hemodynamic parameters improved significantly in both groups (all P < 0.05) at 6 months post PBMV. Compared to pre-PBMV, improvement on left atrial mean pressure [(14.22 ± 5.02) mm Hg vs. (15.44 ± 5.19) mm Hg (1 mm Hg = 0.133 kPa)], pulmonary artery systolic pressure [(26.13 ± 9.27) mm Hg vs. (31.93 ± 9.98) mm Hg], mitral valve gradient [(9.21 ± 4.11) mm Hg vs. (10.16 ± 4.21) mm Hg] and area of mitral valve orifice [(1.02 ± 0.15) cm(2) vs. (1.20 ± 0.22) cm(2)] post PBMV was less in > 8 group (116 cases) than those in ≤ 8 group (254 cases, all P < 0.05). Three hundreds and fifty three patients were followed up for (78 ± 20) months. Echocardiographic parameters post PBMV improved significantly in both groups compared with the pre-PBMV values during follow-up (all P < 0.05). However, left atrial mean pressure, pulmonary artery systolic pressure, mitral valve gradient and area of mitral valve orifice in > 8 group (108 cases) improved less than those in ≤ 8 group (245 cases) [(13.28 ± 5.06) mm Hg vs. (14.77 ± 5.17) mm Hg, (21.19 ± 9.17) mm Hg vs. (28.92 ± 9.91) mm Hg, (7.30 ± 4.40) mm Hg vs. (9.16 ± 4.28) mm Hg, (0.92 ± 0.17) cm(2) vs. (1.07 ± 0.20) cm(2); all P < 0.05]. The incidence of mitral restenosis was also significantly higher in > 8 group than in ≤ 8 group (20.4% vs. 8.2%, P < 0.05).</p><p><b>CONCLUSIONS</b>The mitral valve morphology played a key role on the outcome post PBMV in patients with mitral valve stenosis. Patients with lower echocardiographic scores benefit more from PBMV than patients with higher echocardiographic scores.</p>