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Bioscience Trends

Rujie Qin, Akira Koike, Osamu Nagayama, Yuta Takayanagi, Longmei Wu, Isao Nishi, Yuko Kato, Akira Sato, Takeshi Yamashita, Kazutaka Aonuma, Masaki Ieda
Ventilation (VE) increases linearly with the increase of carbon dioxide output (VCO2) during cardiopulmonary exercise testing. VE-VCO2 slope rises in parallel with exercise intensity, reaches a turning point (called the RC point), then steepens because of respiratory compensation for lactic acidosis. While this RC point can be identified universally, it is undetectable in some patients. In this study we evaluated whether the respiratory compensation during exercise testing has clinical significance in cardiac patients...
August 12, 2018: Bioscience Trends
Duo-Shun Wang, Rui-Xing Yin, Kai-Guang Li, Li Lu, Yuan Su, Rong-Qin Yan
The association between the mevalonate kinase gene (MVK) single nucleotide polymorphism (SNP) and serum lipid levels has been detected in several previous genome-wide association studies, but the results are inconsistent. In addition, it is still unclear whether the loci indentified exert the similar effect on the susceptibility of coronary heart disease (CHD) or ischemic stroke (IS). Therefore, the present study was undertaken to detect the association between the MVK rs2287218 SNP and serum lipid levels, the susceptibility of CHD and IS in a Southern Chinese Han population...
August 12, 2018: Bioscience Trends
Chao Han, Maoshui Wang, Yu He
The clinicopathologic characteristics of patients with tuberculosis (TB) and schizophrenia are unclear. In order to facilitate early diagnosis and prompt treatment, a retrospective study was conducted in China. Subjects were 54 consecutive patients who were seen between October 2006 and December 2015. Data on demographic characteristics, underlying diseases, clinical features, and outcomes were collected from medical records using a standardized data collection form. Acid-fast bacilli were detected at a rate of 26...
August 12, 2018: Bioscience Trends
Miao Wei, Meng Feng, Yue Guan, Ce Guo, Hang Zhou, Yongfeng Fu, Hiroshi Tachibana, Xunjia Cheng
Entamoeba nuttalli infection is prevalent in captive and wild macaques. Recent studies have suggested that genotypes of E. nuttalli isolates are correlated with the geographical distribution of host macaques. Correlation of amoebic genotypes with genetic diversity of host macaques was analyzed in present study. Sixty fresh stool samples were obtained from wild Tibetan macaques living in Mount Huang (HS) of the An-hui Province in China. PCR analysis revealed that the most prevalent Entamoeba species was E. chattoni (E...
August 10, 2018: Bioscience Trends
Rui Ma, Zhenyu Li, Xiaxia Di, Dongxiao Guo, Jianbo Ji, Shuqi Wang
Interaction of riociguat with human serum albumin (HSA) is extremely important in understanding the drug's disposition and efficiency. In the current study, the binding of riociguat to HSA was explored using spectroscopic methods and molecular docking. The quenching constant, the binding constant, the number of binding sites, thermodynamic parameters, and the secondary structure of protein were determined. A fluorescence study revealed that riociguat quenched HSA fluorescence via static quenching with a binding constant of 1...
August 10, 2018: Bioscience Trends
Zen'ichiro Wajima, Toshiya Shiga, Kazuyuki Imanaga
Hypotension commonly accompanies combined epidural and general anesthesia, and intravenous bolus ephedrine and etilefrine are widely used to correct hypotension. We have noticed that systemic vascular resistance (SVR) transiently decreases just after intravenous bolus administration of these drugs. The goal of the present study was to investigate whether bolus administration of these drugs decrease SVR just after intravenous administration in combined epidural and general anesthesia patients. We investigated 40 patients who were scheduled for elective abdominal surgery...
August 10, 2018: Bioscience Trends
(no author information available yet)
Ahead of Print article withdrawn by publisher. This withdrawal is for above article due to the misoperation of advance online publication.
July 15, 2018: Bioscience Trends
(no author information available yet)
Ahead of Print article withdrawn by publisher. This withdrawal is for above article due to the misoperation of advance online publication.
July 15, 2018: Bioscience Trends
Li Zhang, Chunshan Wei, Yunjun Ruan, Yanan Zhang, Yuliang Zhou, Da Lei
The migration and invasion of vascular smooth muscle cells (VSMCs) caused by advanced aging play an important role in diffuse intimal thickening, facilitate adverse arterial remodeling and contribute to the initiation and progression of cardiovascular diseases. The inhibitory function of Buyang Huanwu decoction (BYHWD) has been found on aortic intimal hyperplasia and VSMC proliferation, but its effect on age-associated migration and invasion remains unknown. Here, we used an in vitro angiotensin II (Ang II)-induced senescence model to study the effects of serum containing BYHWD (BYHWS) on the migratory and invasive capacities, matrix metalloprotease type 2 (MMP-2) expression and modulation of sirtuin1 (SIRT1) signaling in human aorta VSMCs (HA-VAMCs)...
July 17, 2018: Bioscience Trends
Chuanqi Zhang, Min Wang, Cong Shi, Fanli Shi, Cheng Pei
Chemotherapy is one of the main treatments for ovarian cancer (OC). Cisplatin combined with paclitaxel is a commonly used chemotherapy regimen. However, effective cancer therapy is hindered by a patient's resistance to cisplatin. The mechanism that potentially leads to that resistance is unclear. The current study examined the mechanism by which Linc00312 is involved in resistance to cisplatin in OC. Quantitative real-time PCR (RT-qPCR) was used to test for expression of Linc00312 in freshly frozen tissue samples of OC and in SKOV3 and SKOV3/DDP cells...
July 17, 2018: Bioscience Trends
Yan Du, Jing Lin, Likun Lan, Ying Dong, Jun Zhu, Wen Jiang, Xinyao Pan, Youhui Lu, Dajin Li, Ling Wang
Noninvasive prenatal testing (NIPT) is increasingly recognized and utilized in the antenatal care field. In the current study, we aimed to evaluate the clinical application and compare test outcomes of two generations of currently used NIPT techniques for detecting fetal chromosome abnormalities in a high-risk prenatal population. A total of 7,252 pregnant women were included from twenty-one hospitals from January 2015 to September 2017. A maternal blood sample of each participant was collected for fetal DNA sequencing...
July 17, 2018: Bioscience Trends
Guanshen Dou, Qun Wang, Xiaohua Ying
The aims of this study were to describe health insurance reforms initiated by the Chinese government over the past two decades, to review their achievements in reducing the medical economic burden, and to summarize the challenges that still exist regarding a further reduction in out-of-pocket expenditures in this country. China has successfully attained the goal of providing health insurance coverage to almost the entire population by developing a mixed health insurance system, which consists of Urban Employees Basic Medical Insurance (UEBMI), Urban Resident Basic Medical Insurance (URBMI), New Rural Cooperative Medical Scheme (NCMS), and supplementary Catastrophic Health Insurance...
July 17, 2018: Bioscience Trends
Wenqi Chu, Yixiong Zhou, Qi Tang, Min Wang, Yongjia Ji, Jingjing Yan, Dan Yin, Shuye Zhang, Hongzhou Lu, Jiayin Shen
Our goal is to develop a switch-controlled approach to enable better control of reactivity and safety of chimeric antigen receptor (CAR)-T therapy for non-small-cell lung cancer (NSCLC). Lentiviral transduction was performed to generate anti-FITC CAR-T cells and target cells stably expressing either isoform of the folate receptor. Colorimetric-based cytotoxic assay, enzyme-linked immunosorbent assay, and multiparametric flow cytometry analysis were used to evaluate the specificity and activity of CAR-T cells in vitro...
July 17, 2018: Bioscience Trends
Lisha Li, Yan Wang, Na Zhang, Yang Zhang, Jing Lin, Xuemin Qiu, Yuyan Gui, Feifei Wang, Dajin Li, Ling Wang
Skeletal homeostasis is dynamically influenced by the immune system. Low density lipoprotein receptor-related protein-5 (LRP5) is a co-receptor of the Wnt signaling pathway, which modulates bone metabolism in humans and mice. Immune disorders can lead to abnormal bone metabolism. It is unclear whether and how LRP5 alters the balance of the immune system to modulate bone homeostasis. In this study, we used primary osteoblast to detect the differentiation of osteoblasts in vitro, the immune cells of spleen and bone marrow of 6-month old LRP5 heterozygote (HZ) and wild-type (WT) mice were analyzed by Flow cytometry...
July 17, 2018: Bioscience Trends
Kohsuke Saito, Syohto Hazama, Yoshiki Oda, Munehiro Nakata
The current study found that an extract from the fruiting bodies of the edible mushroom Hypsizygus marmoreus exhibited hemolytic activity against sheep red blood cells when its pH was lowered. Although hemolytic activity was not detected when an extract had a neutral pH, an extract with a low pH exhibited potent hemolytic activity. The maximal hemolytic activity was exhibited by an extract with a pH of 5.5. A heat-treated extract did not exhibit hemolytic activity before its pH was lowered, and that activity was inhibited in the presence of PMSF and EDTA...
July 17, 2018: Bioscience Trends
Toshiro Seki, Asuka Miyamoto, Shino Ohshima, Yusuke Ohno, Atsushi Yasuda, Yutaka Tokuda, Kiyoshi Ando, Yoshie Kametani
The humanized mouse system is a promising tool for analyzing human immune responses in vivo. Recently, we developed a new humanized mouse system using the severely immunodeficient NOD/Shi-scid-IL2rγnull (NOG)-hIL-4-Tg mouse, which enabled us to evaluate the human humoral immune response after peripheral blood mononuclear cell (PBMC) transplantation. However, the mechanism by which hIL-4 enhances antigen-specific IgG production in these mice is not clear. In this study, we analyzed the relationship between human lymphocyte subsets and the expression level of the glucocorticoid receptor (GR) to clarify the humoral immune condition in human PBMC-transplanted NOG-hIL-4 mice...
July 17, 2018: Bioscience Trends
Fanghua Qi, Jinjing Wang, Lin Zhao, Pingping Cai, Wei Tang, Zhixue Wang
Cinobufacini, an aqueous extract from the skins and parotid venom glands of the toad Bufo bufo gargarizans Cantor, is a well known traditional Chinese medicine widely used in clinical cancer therapy in China. Its therapeutic effect is especially pronounced in liver cancer. However, the precise mechanisms induced by cinobufacini in human hepatocellular carcinoma (HCC) cells are still not very clear. Here, we investigated the effects and mechanisms of cinobufacini on inhibiting HepG2 cells invasion and metastasis...
July 17, 2018: Bioscience Trends
Yan Liu, Xiongyao Wang, Hong Chang, Xiaoming Gao, Chongyang Dong, Zimu Li, Jingtao Hao, Jiuhe Wang, Qiaoling Fan
Hormone replacement medicine such as traditional Chinese medicine has proven to be effective in decreasing the risk of osteoporosis. Mongolian medicine echinops prevents osteoporosis, but its mechanism remains unclear. In this study, we explored the mechanism underlying echinops prevents and treats postmenopausal osteoporosis. Osteoporosis model was established by ovariectomy in rats. Rats were treated to Echinops (16.26, 32.5, or 65 mg/kg/day) by oral gavage for 3 months. Bone mineral density (BMD) was detected by micro-CT detection of left proximal medial metaphyseal tibia...
July 17, 2018: Bioscience Trends
Xinyu Li, Yan Wang, Kun Wang, Yonggui Wu
Paeoniflorin is the main bioactive components of the root of P.lactiflora Pall., and has been widely used as an anti-inflammation and immunomodulatory agent. However, the effect and mechanisms of Paeoniflorin in diabetic nephropathy (DN) remains to be elucidated. In the present study, streptozotocin (STZ)-induced type 1 diabetic mice model was used to investigate the protective effect of Paeoniflorin and the role of the Janus kinase (JAK) 2/signal transducer (STAT) 3 signaling pathway on DN. After treatment with Paeoniflorin at a dose of 25, 50 and 100 mg/kg once a day for 12 weeks, both the functional and histological damage to diabetic mice kidney had been attenuated significantly...
May 13, 2018: Bioscience Trends
Lu Chang, Fang Ye, Quehua Luo, Zewen Wang, Yimin Wang, Zhengyuan Xia, Haihua Shu
Both local infiltration analgesia (LIA) and nerve block are common analgesic modalities for pain relief after surgery. The aim of the current study was to investigate the effects of those two modalities on pain behavior and the expression of pro-inflammatory cytokines such as interleukin (IL)-1β and IL-6 and tumor necrosis factor-α (TNF-α) in the spinal cord and dorsal root ganglion (DRG) in a rat model of perioperative fentanyl induced hyperalgesia. Rats were injected with fentanyl (60 μg/kg) 4 times and received a plantar incision after the second injection or they received pre-incision LIA and sciatic nerve block (SNB) or post-incision LIA with levobupivacaine (0...
May 13, 2018: Bioscience Trends
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