Aerobic glycolysis in colon cancer is repressed by naringin via the HIF1Α pathway / 浙江大学学报（英文版）（B辑：生物医学和生物技术）

Metabolic reprogramming is a common phenomenon in cancer, with aerobic glycolysis being one of its important characteristics. Hypoxia-inducible factor-1α (HIF1Α) is thought to play an important role in aerobic glycolysis. Meanwhile, naringin is a natural flavanone glycoside derived from grapefruits and many other citrus fruits. In this work, we identified glycolytic genes related to HIF1Α by analyzing the colon cancer database. The analysis of extracellular acidification rate and cell function verified the regulatory effects of HIF1Α overexpression on glycolysis, and the proliferation and migration of colon cancer cells. Moreover, naringin was used as an inhibitor of colon cancer cells to illustrate its effect on HIF1Α function. The results showed that the HIF1Α and enolase 2 (ENO2) levels in colon cancer tissues were highly correlated, and their high expression indicated a poor prognosis for colon cancer patients. Mechanistically, HIF1Α directly binds to the DNA promoter region and upregulates the transcription of ENO2; ectopic expression of ENO2 increased aerobic glycolysis in colon cancer cells. Most importantly, we found that the appropriate concentration of naringin inhibited the transcriptional activity of HIF1Α, which in turn decreased aerobic glycolysis in colon cancer cells. Generally, naringin reduces glycolysis in colon cancer cells by reducing the transcriptional activity of HIF1Α and the proliferation and invasion of colon cancer cells. This study helps to elucidate the relationship between colon cancer progression and glucose metabolism, and demonstrates the efficacy of naringin in the treatment of colon cancer.

Effect of Baihu Jia Renshen Tang on PI3K/Akt Signaling Pathway in Liver of MKR Diabetic Mice / 中国实验方剂学杂志

ObjectiveTo explore the effects of Baihu Jia Renshen Tang （BHRS） on the related molecules on the phosphatidylinositol-3-kinase/protein kinase B（PI3K/Akt）signaling pathway in the liver of MKR diabetic model mice. MethodThirty 6-week-old MKR mice were selected and fed on a high-fat diet for four weeks，followed by intraperitoneal injection of streptozotocin（STZ）for the diabetes model establishment. The model was properly induced in the case of the fasting blood glucose （FBG） of ≥11.1 mmol·L-1. After modeling，the mice were randomly divided into a model group，a BHRS group （12.09 g·kg-1·d-1），and a metformin group （0.065 g·kg-1·d-1），with 10 mice in each group. Ten FVB mice were assigned to the control group. The mice in the groups with drug intervention were continuously administered correspondingly for 28 days. After administration，the mice were sacrificed，followed by the oral glucose tolerance test （OGTT） and FBG detection. Serum very low-density lipoprotein（VLDL）content was determined by semi-quantitative enzyme-linked immunosorbent assay （ELISA）. Four indexes related to blood lipid were determined by the biochemistry analyzer. Liver tissues were subjected to pathological examination by hematoxylin-eosin（HE）staining. Western blot was used to detect the protein expression of PI3K，Akt，phosphorylated（p）-PI3K，p-Akt，forkhead box protein O1 （FoxO1），insulin receptor（InsR），and insulin receptor substrate-2（IRS-2） in liver tissues of mice. Real-time polymerase chain reaction（Real-time PCR） was used to detect the mRNA expression of PI3K，Akt，FoxO1，InsR，and IRS-2 in liver tissues of mice. ResultCompared with the control group，the model group showed poor general conditions，abnormal glucose tolerance （P<0.05），increased FBG （P<0.01），abnormal blood lipid metabolism，increased serum total cholesterol （TC），triglyceride（TG），low-density lipoprotein cholesterol（LDL-C），and VLDL （P<0.05），decreased level of high-density lipoprotein cholesterol（HDL-C）（P<0.05），fatty degeneration and obvious pathological changes of liver cells，reduced protein expression of PI3K，Akt，p-PI3K/PI3K，p-Akt/Akt，IRS-2，and InsR in liver tissues（P<0.05），increased protein expression of FoxO1（P<0.05），decreased mRNA expression of PI3K，Akt，IRS-2，and InsR in liver tissues （P<0.05），and increased FoxO1 mRNA expression（P<0.05）. Compared with the model group，the BHRS group showed improved general conditions and glucose and lipid metabolism （P<0.05），improved pathological state of liver cells，increased protein expression of PI3K，Akt，p-PI3K/PI3K，p-Akt/Akt，IRS-2，and InsR in liver tissues（P<0.05），decreased protein expression of FoxO1（P<0.05），increased mRNA expression of PI3K，Akt，IRS-2，and InsR in liver tissues （P<0.05），and reduced FoxO1 mRNA expression（P<0.05）. ConclusionBHRS can effectively reduce blood glucose，regulate blood lipid metabolism，and improve the pathological state of the liver in MKR diabetic mice，and its mechanism of action may be related to the regulation of the activity of molecules on the PI3K/Akt signaling pathway.

Effect of Huangqi Guizhi Wuwutang on Diabetic Peripheral Neuropathy in MKR Mice via Regulating Endoplasmic Reticulum Stress / 中国实验方剂学杂志

ObjectiveTo investigate the mechanism of Huangqi Guizhi Wuwutang （HQGZWWT） in the treatment of diabetic peripheral neuropathy （DPN） in MKR mice via regulating endoplasmic reticulum （ER） stress. MethodThirty-two 8-week-old MKR mice （half were male and half were female） were fed with a high-fat diet for four weeks， and then 1% streptozotocin （STZ） was injected intraperitoneally for five days. After the blood glucose was stabilized， the mice were housed in the cage covered with ice bags for another one hour stimulation per day for four weeks. Mice with fasting blood glucose （FBG） value ≥11.1 mmol·L-1 were randomly divided into model group ， Huangqi Guizhi Wuwutang in original dosage group （30 g·kg-1·d-1）， Huangqi Guizhi Wuwutang in formula dosage group （6.25 g·kg-1·d-1）， and positive drug group （mecobalamin tablets， 0.17 mg·kg-1·d-1）. Another eight MKR mice of the same age were set as blank group and eight FVB mice were normal group. After four weeks of intragastric administration in each group， the change in FBG was tested， and hematoxylin and eosin （HE） staining and transmission electron microscope were used for observing the morphology of sciatic nerve tissue. In addition， the expression of c-Jun N-terminal kinase （JNK）， phosphorylated c-Jun N-terminal kinase （p-JNK） and inositol requiring enzyme 1α （IRE1α） proteins was determined by immunohistochemical test and Western blot （WB）. ResultCompared with the conditions in the normal group and blank group， the time of paw withdrawal， paw licking and tail flick in the model group was shortened （P<0.01）， and the conduction velocity of sciatic nerve was decreased （P<0.01）. Compared with the conditions in the model group， the behavioral and functional indicators were improved by HQGZWWT （P<0.05，P<0.01）. The immunohistochemical test revealed the JNK expression was elevated in the model group compared with the conditions in the normal group and blank group （P<0.05）， while that was lowered by HQGZWWT compared with the condition in the model group （P<0.05）. However， there was no difference among the treatment groups. According to the WB， the expression of IRE1α and p-JNK in the model group was enhanced compared with the conditions in the normal group and blank group （P<0.05，P<0.01）， while that was decreased by HQGZWWT compared with the condition in the model group （P<0.05，P<0.01）. No difference was observed between the HQGZWWTO and HQGZWWTF groups. ConclusionHQGZWWT can improve the neurophysiological function and pathological damage of sciatic nerve， which may be related to its delaying the ER stress response of sciatic nerve.

Behavioral Responses of Pregnant Women to the Early Stage of COVID-19 Pandemic in the Network Era in China: Online Questionnaire Study

Purpose@#The aim of this study was to examine the behavioral responses of pregnant women during the early stage of Coronavirus Disease 2019 (COVID-19) outbreak. @*Methods@#We recruited 1,099 women to complete an online questionnaire survey from February 10 to February 25, 2020. The subjects were divided into two groups (the pregnant women group and the control group). @*Results@#Concerns about infection: most of the participants watched the COVID-19 news at least once a day. Protective behaviors: the utilization rate of pregnant women (often using various measures) was higher than that of nonpregnant women. Exercise: 30.6% of the pregnant women continued to exercise at home, whereas in the control group, this percentage was 8.4%. Spouse relationship: 38.8% of the subjects’ relationship improved, whereas only 2.3% thought the relationship was getting worse. @*Conclusion@#Pregnant women had some unique behavioral responses different from that of nonpregnant women. It is important to understand the behavioral responses of pregnant women in this network era.

Effect of Yinchenhao Tang on Type 2 Diabetes Mellitus Complicated with Non-alcoholic Fatty Liver Disease in MKR Mice / 中国实验方剂学杂志

Objective:To investigate the action mechanism of Yinchenhao Tang against type 2 diabetes mellitus （T2DM） complicated with non-alcoholic fatty liver disease （NAFLD） in MKR mice. Method:Forty eight-week-old MKR mice were fed a high-fat diet for eight weeks and then divided into the model group，original Yinchenhao Tang （17.16 g·kg^-1） group，Yinchenhao Tang group at a specified dose （4.68 g·kg^-1） in teaching materials，and positive drug ［metformin + simvastatin， （65+2.6）×10^-3 g·kg^-1］ group. Another 10 MKR mice of the same age were classified into the blank group and 10 FVB mice into the normal group. After eight weeks of intragastric administration in each group，the liver wet weight，oral glucose tolerance test （OGTT），serum inflammatory factors interleukin-6 （IL-6） and tumor necrosis factor-<italic>α</italic> （TNF-<italic>α</italic>），and changes in blood lipid and liver function were determined. Hematoxylin-eosin （HE） staining was conducted for observing the morphological changes in liver tissue under a transmission electron microscope，followed by the detection of Toll-like receptor 4 （TLR4），myeloid differentiation factor 88 （MyD88），and nuclear transcription factor-<italic>κ</italic>B （NF-<italic>κ</italic>B） protein expression by Western blot. Result:Compared with the model group，the medication groups exhibited significantly reduced liver wet weight index （<italic>P</italic><0.01），improved OGTT result （<italic>P</italic><0.05），and down-regulated serum IL-6 and TNF-<italic>α</italic> levels （<italic>P</italic><0.01）. In terms of morphological changes，Yinchenhao Tang protected the hepatocyte structure and alleviated hepatocyte steatosis. Moreover， Yinchenhao Tang obviously down-regulated the protein expression levels of TLR4，MyD88，and NF-<italic>κ</italic>B in liver tissue of MKR mice with T2DM combined with NAFLD （<italic>P</italic><0.05），and the down-regulation of TLR4 and NF-<italic>κ</italic>B in the original Yinchenhao Tang group was better than that in the Yinchenhao Tang group at a specified dose in teaching materials （<italic>P</italic><0.05）. Conclusion:Yinchenhao Tang is able to reduce inflammatory factor levels and down-regulate TLR4，MyD88，and NF-<italic>κ</italic>B expression in liver tissue to relieve the pathological liver injury and interfere with T2DM combined with NAFLD of MKR mice. It exerts a certain liver-protective effect by lowering the blood lipids and delaying the hepatic inflammation.

Behavioral Responses of Pregnant Women to the Early Stage of COVID-19 Pandemic in the Network Era in China: Online Questionnaire Study

Purpose@#The aim of this study was to examine the behavioral responses of pregnant women during the early stage of Coronavirus Disease 2019 (COVID-19) outbreak. @*Methods@#We recruited 1,099 women to complete an online questionnaire survey from February 10 to February 25, 2020. The subjects were divided into two groups (the pregnant women group and the control group). @*Results@#Concerns about infection: most of the participants watched the COVID-19 news at least once a day. Protective behaviors: the utilization rate of pregnant women (often using various measures) was higher than that of nonpregnant women. Exercise: 30.6% of the pregnant women continued to exercise at home, whereas in the control group, this percentage was 8.4%. Spouse relationship: 38.8% of the subjects’ relationship improved, whereas only 2.3% thought the relationship was getting worse. @*Conclusion@#Pregnant women had some unique behavioral responses different from that of nonpregnant women. It is important to understand the behavioral responses of pregnant women in this network era.

Influence of bisoprolol combined benazepril on ECG and left ventricular diastolic function in hyperten‐sive patients with acute heart failure／ / 心血管康复医学杂志

To explore influence of bisoprolol combined benazepril on ECG and left ventricular diastolic function in hypertensive patients with acute heart failure (AHF).Methods :A total of 124 hypertensive patients with AHF were randomly and equally divided into routine treatment group and combined treatment group (received biso‐prolol combined benazepril based on routine treatment ) ,both groups were treated for two months .Therapeutic effect ,ECG indexes ,left ventricular diastolic function indexes ,levels of heart failure and myocardial injury markers etc .before and after treatment were compared between two groups .Results : After two‐month treatment ,total ef‐fective rate of combined treatment group was significantly higher than that of routine treatment group (96. 77% vs. 82. 26%, P＝0.008) ;compared with routine treatment group ,there were significant reductions in QRS wave dura‐tion [ (103. 87 ± 9.70) ms vs.(94.12 ± 8. 93) ms] ,QTc duration [ (432.37 ± 33. 24) msvs .(418.96 ± 29. 64) ms] , plane QRS‐T angle [ (59.75 ± 26. 61)°vs.(48.19 ± 22.30)°] ,mitral annulus late diastolic peak flow velocity (Am) [ (12.84 ± 3.40) cm／svs .(11. 39 ± 3. 11) cm／s] ,plasma levels of N terminal pro brain natriuretic peptide [ (1. 20 ± 0.58) μg／L vs .(0. 75 ± 0.47) μg／L] ,carbohydrate antigen 125 [ (19.10 ± 9.24) U／ml vs.(13.93 ± 7.85) U／ml] ,galectin‐3 [ (4.72 ± 2. 25) μg／L vs .(3.28 ± 1. 65) μg／L] ,cardiac troponin I [ (1.93 ± 0. 97) μg／L vs.(1. 46 ± 0. 85) μg／L] ,and significant rise in mitral early／late diastolic peak flow velocity (E／A) [(1. 18 ± 0.30) vs.(1. 31 ± 0. 28)] and mitral annulus early diastolic peak flow velocity (Em) [ (12.90 ± 3. 76) cm／svs.(14. 49 ± 3.25) cm／s] in combined treatment group , P＜0. 05 or ＜0.01. There was no significant difference in incidence rates of ad‐verse reactions between two groups , P＞0.05 all.Conclusion :Bisoprolol combined benazepril possesses significant therapeutic effect on hypertensive patients with AHF ,and its improving effect on ECG indexes and left ventricular diastolic function is significant .

Application of copy number variation sequencing for prenatal diagnosis in women at an advanced maternal age / 中华医学遗传学杂志

OBJECTIVE@#To assess the value of copy number variation analysis based on next generation sequencing (CNV-seq) in prenatal diagnosis for women at advanced maternal age.@*METHODS@#A prospective analysis was carried out for women who underwent amniocentesis at 18~36 weeks of gestation for fetal CNV-seq for advanced maternal age.@*RESULTS@#For 1461 unrelated Chinese women with a singleton pregnancy, CNV-seq was performed for all samples successfully. The proportion of chromosomal abnormalities was 2.3% (34/1461), of which 44.12% were submicroscopic copy number variations (<5 Mb).@*CONCLUSION@#Pregnant women at an advanced maternal age should be informed for not only common trisomies but all pathogenic chromosomal aberrations. NGS was a sensitive and accurate approach for detecting CNVs.

Clinical evaluation of the socket-shield technique for immediate implantation in the maxillary anterior region / 华西口腔医学杂志

OBJECTIVE@#This study aimed to evaluate the clinical effect of the socket-shield technique in the maxillary anterior region at one year after implant placement.@*METHODS@#Ten patients with maxillary anterior teeth that cannot be reserved were enrolled. Implants were installed following the socket-shield technique and restored six months after the surgery. The thickness of the labial maxillary bone of the implant was compared before and one year after the surgery. At one year follow-up, the reten-tion rate of the implants, Jemt classification, and pink and white aesthetic scores were evaluated. Postoperative complications and patient satisfaction were also analyzed.@*RESULTS@#One year after installation, the retention rate of the implant was 100%. The thickness of the maxillary bone at the neck, central, and root section of the implant reduced to (0.27±0.21), (0.19±0.20), and (0.28±0.29) mm, respectively, compared with the values immediately after the operation. The thickness of the labial maxillary bone at the three measurement points immediately after and one year after the operation was statistically significant (P0.05) of the difference thickness between immediate and one year after operation at the three measurement points. The pink esthetic scores of the implant prosthesis was 9.10±0.54, and the white esthetic scores was 9.00±0.63. No complications were observed, and the patients had a high degree of satisfaction.@*CONCLUSIONS@#The socket-shield technique could provide acceptable treatment results but cannot completely avoid the reconstruction of the labial maxillary bone of the implants. The technique exhibits favo-rable short-term aesthetic result, but its long-term clinical effect and aesthetic problems need to be further studied.

Effect of perioperative dexamethasone on nausea, vomiting and pain after total knee arthroplasty / 中国骨伤

OBJECTIVE@#To investigate the effect of perioperative dexamethasone on nausea, vomiting and pain after unilateral total knee arthroplasty and to evaluate its safety.@*METHODS@#From February 2014 to June 2016, 100 patients with unilateral advanced osteoarthritis treated by total knee arthroplasty were divided into two groups: 50 patients in dexamethasone group including 27 males and 23 females, aged (72.30±7.02) years, were given intravenous drip of dexamethasone 10 mg before operation; 50 patients in saline group, including 26 males and 24 females, aged (71.30±6.08) years, were given the same amount of saline at the corresponding time. The VAS scores of pain at rest and at 45 degrees of knee flexion were recorded at 2, 4, 6, 8, 12, 24, 36 and 48 h after operation. Vomiting, antiemetic drugs and opioids were recorded at 0 to 24 h and 24 to 48 h after operation. The side effects and complications were recorded.@*RESULTS@#All the 100 patients were followed up for an average of 14.5 months. VAS score of pain at rest in dexamethasone group was lower than that in saline group at 8, 24 and 48 h after operation (<0.05); VAS score of dexamethasone group at 45 degrees after knee flexion was lower than that of saline group at 8 and 48 h after operation(<0.05); VAS score of dexamethasone group at rest and 45 degrees after knee flexion was lower than that of saline group(<0.05). The dosage of opioids and total opioids in dexamethasone group was lower than that in saline group at 0 to 24 h, 24 to 48 h after operation (<0.05). The proportion of nausea and vomiting occurred at 0 to 24 h and 24 to 48 h after operation, and the proportion of antiemetic required at 0 to 24 h after operation had statistical significance between two groups(<0.05). The total antiemetic dosage of dexamethasone group was less than that of saline group(<0.05). As of the last follow-up, no complications such as infection, gastrointestinal ulcer and bleeding occurred in the two groups.@*CONCLUSIONS@#Preoperative systemic application of dexamethasone can effectively reduce pain and nausea and vomiting after TKA without increasing postoperative complications.

The influence of bone graft procedures on primary stability and bone change of implants placed in fresh extraction sockets / 대한악안면성형재건외과학회지

BACKGROUND: This study was to evaluate the effect of bone graft procedure on the primary stability of implants installed in fresh sockets and assess the vertical alteration of peri-implant bone radiographically. METHODS: Twenty-three implants were inserted in 18 patients immediately after tooth extraction. The horizontal gap between the implant and bony walls of the extraction socket was grafted with xenografts. The implant stability before and after graft procedure was measured by Osstell Mentor as implant stability quotient before bone graft (ISQ bbg) and implant stability quotient after bone graft (ISQ abg). Peri-apical radiographs were taken to measure peri-implant bone change immediately after implant surgery and 12 months after implant placement. Data were analyzed by independent t test; the relationships between stability parameters (insertion torque value (ITV), ISQ abg, and ISQ bbg) and peri-implant bone changes were analyzed according to Pearson correlation coefficients. RESULTS: The increase of ISQ in low primary stability group (LPSG) was 6.87 ± 3.62, which was significantly higher than the increase in high primary stability group (HPSG). A significant correlation between ITV and ISQ bbg (R = 0.606, P = 0.002) was found; however, age and peri-implant bone change were not found significantly related to implant stability parameters. It was presented that there were no significant peri-implant bone changes at 1 year after bone graft surgery. CONCLUSIONS: Bone graft procedure is beneficial for increasing the primary stability of immediately placed implants, especially when the ISQ of implants is below 65 and that bone grafts have some effects on peri-implant bone maintenance.

Self-protection against triptolide-induced toxicity in human hepatic cells via Nrf2-ARE-NQO1 pathway / 中国结合医学杂志

<p><b>OBJECTIVE</b>To find the signaling pathway of triptolide (TP)-induced liver injury and to reveal whether NF-E2-related factor 2 (Nrf2) plays an important role in cellular self-protection.</p><p><b>METHODS</b>The L-02 and HepG2 cells were cultured and treated with various concentrations of TP. The cell viability was observed, and the cell medium was collected for detecting the aspartate aminotransferase (ALT), alanine aminotransferase (AST), lactate dehydrogenase (LDH), superoxide dismutase (SOD) and L-glutathione production (GSH) levels. Nrf2 and its downstream target NAD(P)H: quinine oxidoreductase 1 (NQO1) and heme oxygenase-1 (HO-1) expression, the nuclear translocation of Nrf2, and the binding ability of Nrf2 and antioxidant response element (ARE) were also identified. Meanwhile, shRNA was used to silence Nrf2 in L-02 cells to find out whether Nrf2 plays a protective role.</p><p><b>RESULTS</b>The viability of the L-02 and HepG2 cells treated with TP decreased in a doseand time-dependent manner, and TP (20-80 μg/mL) markedly induced the release of ALT, AST and LDH (P<0.05 or P<0.01), reduced the levels of SOD and GSH (P<0.01), and increased the intracellular reactive oxygen species. Meanwhile, TP augmented the Nrf2 expression in L-02 and HepG2 cells (P<0.05 or P<0.01), induced Nrf2 nuclear translocation, increased the Nrf2 ARE binding activity, and increased HO-1 and NQO1 expressions. Nrf2 knockdown revealed a more severe toxic effect of TP (P<0.05 or P<0.01).</p><p><b>CONCLUSIONS</b>Human hepatic cells treated with TP induced oxidative stress, and led to cytotoxicity. Self-protection against TP-induced toxicity in human hepatic cells might be via Nrf2-ARE-NQO1 transcriptional pathway.</p>

Effects of rapamycin on promoting oral squamous cancer cell apoptosis by inhibiting TLR4, IL-6 and PGE2 expression / 重庆医学

Objective To investigate whether the effects of rapamycin on promoting oral squamous cancer cell apoptosis is related with inhibiting TLR4 expression and inflammatory factor IL-6 and PGE2 expression.Methods Human oral squamous carcinoma SCC-15 cell line was cultured and interfered by rapamycin.Then the activity of SCC-15 cells was detected by CCK 8,the SCC-15 cells apoptosis was detected by the Hochest33342/PI double staining,the invasion ability was determined by the transwell method.The TLR4 protein expression level was detected by Western blot and IL-6 and PGE2 expressions were detected by ELISA.Results Rapamycin could promote cell apoptosis,the invasion ability of SCC-15 cells was significantly decreased.After rapamycin intervention,the TLR4 protein expression was decreased and expression levels of IL-6 and PGE2 were reduced,showing statistical difference as compared with the negative group (P＜0.05).Conclusion Rapamycin promotes oral squamous cancer SCC-15 cell apoptosis,which may be related with inhibiting TLR4,IL-6 and PGE2 expression.

Evaluation of mandibular lingula and foramen location using 3-dimensional mandible models reconstructed by cone-beam computed tomography / 대한악안면성형재건외과학회지

BACKGROUND: The positions of the mandibular lingula and foramen have been set as indexes for inferior alveolar nerve (IAN) block and ramus osteotomies in orthognathic surgery. This study aimed to evaluate the anatomical structures of mandibular ramus, especially the mandibular lingula and foramen, by analyzing the cone-beam computed tomography (CBCT) data of young adults. METHODS: We evaluated 121 sides of hemi-mandibular CBCT model of 106 patients (51 male and 55 female patients; 18 to 36 years old). All the measurements were performed using the 2- and 3-dimensional rulers of OnDemand3D® software. RESULTS: Statistical analysis of the data revealed that there was no significant difference in the mandibular angle between the genders. The mandibular lingula was found to be located at the center of ramus in males, but a little posterior in relation to the center in females. The mandibular lingula was rarely located below the occlusal plane; however, the position of the mandibular foramen was more variable (84.3% below, 12.4% above, and 3.3% at the level of the occlusal plane). CONCLUSIONS: The results of this study provide a valuable guideline for IAN block anesthesia and orthognathic surgery. CBCT can be considered effective and accurate in evaluating the fine structures of the mandible.

Outcomes of patients with left ventricular ejection fraction preserved heart failure and iron deficiency treated with intravenous iron / 实用医学杂志

Objective The aim of this study was to evaluate the benefits of i.v. iron therapy in iron-defi-cient patients with left ventricular ejection fraction preserved heart failure (HFpEF). Methods 61 HFpEF pa-tients with iron deficiency were randomized to treatment with or without i.v. iron,as ferric carboxymaltose(FCM, n = 31)or placebo(saline,n = 29)for 24 weeks of a double-blind,placebo-controlled trial. The primary end-point was the change in 6-min-walk-test(6MWT)distance from baseline to Week 24. Secondary end-points includ-ed changes in New York Heart Association(NYHA)class,health-related quality of life(QoL),with NT-proBNP under observation. Results Compared with the control group at week 16 and 24,the iron treatment group has much more improve in 6MWT and the health-related quality of life(HRQoL)(P0.05). Conclusion In this study,Treatment with intravenous ferric carboxymaltose can improve symptoms, functional capacity,and quality of life.

Effects of rapamycin on promoting oral squamous cancer cell apoptosis by inhibiting TLR4, IL-6 and PGE2 expression / 重庆医学

Objective To investigate whether the effects of rapamycin on promoting oral squamous cancer cell apoptosis is related with inhibiting TLR4 expression and inflammatory factor IL-6 and PGE2 expression.Methods Human oral squamous carcinoma SCC-15 cell line was cultured and interfered by rapamycin.Then the activity of SCC-15 cells was detected by CCK 8,the SCC-15 cells apoptosis was detected by the Hochest33342/PI double staining,the invasion ability was determined by the transwell method.The TLR4 protein expression level was detected by Western blot and IL-6 and PGE2 expressions were detected by ELISA.Results Rapamycin could promote cell apoptosis,the invasion ability of SCC-15 cells was significantly decreased.After rapamycin intervention,the TLR4 protein expression was decreased and expression levels of IL-6 and PGE2 were reduced,showing statistical difference as compared with the negative group (P＜0.05).Conclusion Rapamycin promotes oral squamous cancer SCC-15 cell apoptosis,which may be related with inhibiting TLR4,IL-6 and PGE2 expression.

P2X3 receptor expression in lingual nerve fibres of patients with burning mouth syndrome / 实用口腔医学杂志

Patients with burning mouth syndrom(BMS,n =12)and patients with wisdom tooth removal(controls,n =9)were included. Immunohistochemistry and image analysis were used to quantify P2X3 receptor expression in lingual nerve fibres.A pain history and score were recorded on a visual analogue scale(VAS)prior to obtaining a lingual biopsy.The value of P2X3 receptor positive fibres in BMS and control subjects was 0.56 ±0.29 and 0.15 ±0.06 respectively(P <0.001).There was no significant correlation between P2X3 and VAS scores(R2 =0.012).Increased P2X3 may play a role in BMS but not correlated with the VAS score.

Inhibition mechanism of Qingluo Tongbi Granule () on osteoclast differentiation induced by synovial fibroblast and monocytes co-culture in adjuvant-induced arthritic rats / 中国结合医学杂志

<p><b>OBJECTIVE</b>To study the mechanism underlying the inhibitory effect of Qingluo Tongbi Granule (, QTG) on osteoclast differentiation in rheumatoid arthritis in rats.</p><p><b>METHODS</b>Fibroblast and monocyte co-culture were used to induce osteoclast differentiation in adjuvant-induced arthritic (AIA) rats. Serum containing QTG was prepared and added to the osteoclasts, and activation of the tumor necrosis factor receptor-associated factor 6/mitogen-activated protein kinase/nuclear factor of activated T cells, cytoplasmic1 (TRAF6/MAPK/NFATc1) pathways was examined.</p><p><b>RESULTS</b>The induced osteoclasts were multinucleated and stained positive for tartrate-resistant acid phosphatase (TRAP) staining. Serum containing QTG at 14.4, 7.2 or 3.6 g/kg inhibited the activation of TRAF6, extracellular regulated protein kinase (ERK)1/2, c-Jun N-terminal kinase (JNK) and p38 and decreased the percentage of cells with nuclear NFATc1 in a dose-dependent manner, the high and middle doses exhibited clear inhibitory activity (P<0.01 and P<0.05, respectively). After the addition of MAPK inhibitors, the NFATc1 expression showed no significant difference compared with the control group (P>0.05).</p><p><b>CONCLUSIONS</b>Serum containing QTG could generally inhibit the TRAF6/MAPK pathways and possibly inhibit the NFATc1 pathway. In addition, QTG may regulate other signaling pathways that are related to osteoclast differentiation and maturation.</p>

Screening of targeting peptides for highly metastatic human ovarian cancer cells and their effect on the biological behavior of ovarian cancer cells / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To explore the effect of short peptides specifically binding to highly metastatic human ovarian cancer HO8910PM cells and their effect on the biological behavior of ovarian cancer cells.</p><p><b>METHODS</b>The phage-displayed peptide library was used to isolate the peptides binding and internalizing into the HO8910PM cells. Positive phage clones were characterized with DNA sequencing and bioinformatics analysis. The positive phage clones specifically bound to HO8910 cells were validated with immunofluorescence detection and enzyme-linked immunosorbent assay (ELISA). Furthermore, selected peptides were investigated for their cancer-related functions, including cell adhesion, spreading, motility, and invasion in vitro and in nude mice in vivo. The apoptotic index was detected by TUNEL assay, and VEGF expression by immunohistochemistry.</p><p><b>RESULTS</b>After 4 rounds of screening, apparent enrichment of phages was observed on the HO8910PM cells. ELISA assay showed that among the randomly selected 20 phage clones, 12 can specifically bind to HO8910PM cells. Immunofluorescence assay also showed that the selected positive phage clones can specifically bind to HO8910PM cells. The adherence test showed that the adherence rates of HO8910PM-peptide20, HO8910PM-peptide16 and HO8910PM cells were 49.0%, 96.8% and 100.0%, respectively. There was a significant difference between the cell adherence rates of HO8910PM-peptide20 and HO8910PM cells (P < 0.05). The peptide20 read as "THRVHLH" was a positive peptide and showed preferential binding to targeted cells. The peptide20 effectively inhibited tumor growth and metastasis in the nude mice, and the positive rates of VEGF protein in the tumor tissue of experimental, negative control and blank mice were 21.2%, 81.4% and 85.7%, respectively, showing that the positive rate of VEGF protein in the experimental group was significantly lower than that in the negative control and blank groups (P < 0.01), and the apoptotic index (AI) of the experimental group was (18.21 ± 2.49)%, significantly higher than the (3.76 ± 1.77)% in the negative control group and the (4.78 ± 1.57)% in the blank group (P < 0.01).</p><p><b>CONCLUSIONS</b>A novel short peptide able to specifically bind to highly metastatic human ovarian cancer cells is successfully screened. It can effectively inhibit the growth, invasion and metastasis of ovarian cancer cells, and provides an ideal vector in targeted drug therapy for ovarian cancer.</p>

Imaging diagnosis of extramedullary hematopoiesis / 实用放射学杂志

Objective To discuss and analyze the imaging features of extramedullary hematopoiesis (EMH).Methods Imaging data of EMH in 7 patients with 85 lesions confirmed by clinical and pathological results were retrospectively analyzed.Results CT or MRI showed thoracic paravertebral multiple tumor-like soft tissue masses in 6 patients accompanied with pleural mass in 1,with liv-er mass in 1 and spleen mass in 1,and the masses in the distal ileum and in front of the inferior vena cava in 1.Thoracic paraverte-bral and pleural masses presented isodensity on plain CT and moderate enhancement on post-contrast CT.Among the 6 liver mas-ses,CT showed uniform density in 5 and small area of necrosis in 1.The only one spleen mass also appeared inner necrosis and mul-tiple small calcifications.The mass in the ileum presented thickened bowel wall with moderate enhancement,meanwhile the mass in front of vena cava presented obvious edge enhancement.MRI in 2 patients showed the masses with low signal on T1 WI and high sig-nal on T2 WI.Conclusion EMH has certain specific imaging characteristics,which may be helpful for correct diagnosis of EMH when combined with the clinical data.