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Bioscience Trends

Yingping Xu, Nan Chu, Xuemin Qiu, Hans-Jürgen Gober, Dajin Li, Ling Wang
Over the past few decades, researchers have paid considerable attention to the relationship between estrogen and bone metabolism. Nevertheless, few studies have examined the potential role of chemokines in estrogen regulation of bone metabolism. Chemokines are members of a superfamily of low-molecular-weight chemoattractant cytokines. Various chemokines and their corresponding transmembrane G protein-coupled receptors play distinct roles in the functional regulation and homeostasis of the immune and skeletal systems...
October 4, 2016: Bioscience Trends
Hang Yu, Lijie Wang, Zhen Wu, Zhen Yang
Bronchoscopic lung volume reduction (BLVR) is a minimally invasive treatment for severe emphysema, providing treatment options for patients who are unable to undergo lung volume reduction surgery (LVRS) or lung transplantation. Current BLVR techniques include bronchoscopic volume reduction with valve implants, use of a lung volume reduction coil (LVRC), bronchoscopic thermal vapor ablation (BTVA), biological lung volume reduction (BioLVR), and use of airway bypass stents (ABS). To date, several randomized controlled trials of these bronchoscopic therapies have been conducted in patients with emphysema, and bronchoscopic volume reduction with valve implants remains the best approach thus far...
September 5, 2016: Bioscience Trends
Danni Wang, Guangliang Mei, Xiaoru Xu, Ran Zhao, Ying Ma, Ren Chen, Xia Qin, Zhi Hu
HIV/AIDS is a major public health and social problem worldwide, and non-governmental organizations (NGOs) have played an irreplaceable role in HIV/AIDS prevention and control. At the present time, however, NGOs have not fully participated in HIV/AIDS prevention and control in China. As an emerging focus on international academic inquiry, social capital can provide a new perspective from which to promote the growth of NGOs. The Joint United Nations Program on HIV/AIDS (UNAIDS) recommends creating regional policies tailored to multiple and varying epidemics of HIV/AIDS...
August 29, 2016: Bioscience Trends
Jian Wu, Li Yao, Bing Wang, Zhen Liu, Keyong Ma
The aim of this study was to corroborate the hypothesis that Tao-Hong-Si-Wu Decoction (THSWD) affects steroid-induced avascular necrosis of the femoral head (SANFH) by regulating the hypoxia-inducible factor 1α (HIF-1α) pathway. Forty-eight New Zealand rabbits were randomly divided into a normal control group (NC group), a model group (SANFH group), a THSWD group, and a dimethyloxalylglycine group (DMOG group). Rabbits in the SANFH group were injected with both horse serum and methylprednisolone. Rabbits in the THSWD group were gavaged with THSWD in addition to receiving the same treatment as the SANFH group...
August 23, 2016: Bioscience Trends
Wei Li, Xu Li, Xin Xin, Peng-Cheng Kan, Yan Yan
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by progressive loss of memory and other cognitive functions and presents an increasing clinical challenge in terms of diagnosis and treatment. Brain-derived neurotrophic factor (BDNF) plays an important role in neuronal survival and proliferation. In the present study, the mRNA and protein expression level of BDNF was detected in serum, and cerebrospinal fluid (CSF) of patients with mild cognitive impairment (MCI), dementia of Alzheimer's type (DAT), and hippocampus in APP/PS1 mice...
August 19, 2016: Bioscience Trends
Xia Xue, Fang Chen, Anxin Liu, Deqing Sun, Jing Wu, Feng Kong, Yun Luan, Xianjun Qu, Rongmei Wang
Multidrug resistance (MDR) represents a clinical obstacle to cancer chemotherapy since it causes cancer recurrence and metastasis. Acetyl-11-keto-β-boswellic acid (AKBA), an active ingredient derived from the plant Boswellia serrata, has been found to inhibit the growth of a wide variety of tumor cells, including glioma, colorectal cancer, leukemia, human melanoma, hepatocellular carcinoma, and prostate cancer cells. However, the actions of AKBA in multidrug-resistant cancer cells have not been fully elucidated...
August 19, 2016: Bioscience Trends
Ho-Geun Kwak, Naoshi Dohmae
Various histones, including testis-specific histones, exist during spermatogenesis and some of them have been reported to play a key role in chromatin remodeling. Mass spectrometry (MS)-based characterization has become the important step to understand histone structures. Although individual histones or partial histone variant groups have been characterized, the comprehensive analysis of histone variants has not yet been conducted in the mouse testis. Here, we present the comprehensive separation and characterization of histone variants from mouse testes by a top-down approach using MS...
August 19, 2016: Bioscience Trends
Xuemin Qiu, Yuyan Gui, Na Zhang, Yingping Xu, Dajin Li, Ling Wang
Osteoimmunology is a new discipline that focuses on the interaction between the bones and the immune system. Immune cells play an important role in bone metabolism. The aim of this study was to illustrate the effect of Bu-Shen-Ning-Xin Decoction (BSNXD) on lymphocytes in the spleen and bone marrow to explore the potential role on the bone. C57BL/6 mice were divided into four groups: sham, ovariectomized (OVX), OVX+BSNXD, and OVX+ estrogen. The sham and OVX groups were treated with saline, the OVX+BSNXD group was treated with BSNXD, and the OVX+ estrogen group was treated with estrogen...
July 31, 2016: Bioscience Trends
Zhenhua Wu, Yujuan Qi, Zhigang Guo, Peijun Li, Ding Zhou
MicroRNAs (miRNAs) are important gene regulators in both biological and pathological processes, including myocardial ischemia/reperfusion (I/R) injury. This study investigated the effect of miR-613 on I/R-induced cardiomyocyte apoptosis and its molecular mechanism of action. Hypoxia/reoxygenation (H/R) significantly increased the release of lactate dehydrogenase (LDH), levels of malondialdehyde (MDA), and cardiomyocyte apoptosis, but these effects were attenuated by an miR-613 mimic. Programmed cell death 10 (PDCD10) was identified as a target gene of miR-613...
September 5, 2016: Bioscience Trends
Jufeng Xia, Yoshinori Inagaki, Tatsuo Sawakami, Peipei Song, Yulong Cai, Kiyoshi Hasegawa, Yoshihiro Sakamoto, Nobuyoshi Akimitsu, Wei Tang, Norihiro Kokudo
Hepatocellular carcinoma (HCC) is a highly prevalent cancer with a high mortality rate and HCC is always accompanied with a hepatitis B virus (HBV) infection, unlike many other types of cancers. Over the past few years, cancer-related long non-coding RNAs (lncRNAs) and virus-related lncRNAs have attracted the attention of many researchers, and a number of previous studies have examined the relationship between lncRNAs and various cancers and viruses. The current study used The Cancer Genome Atlas database to screen for lncRNAs up-regulated in HCC in order to identify cancer biomarkers...
September 5, 2016: Bioscience Trends
Yingguo Ding, Xiaomin Li, Dongsheng Hong, Li Jiang, Yong He, Hong Fang
Metastasis-associated colon cancer 1 (MACC1) has been demonstrated to promote metastasis of several cancers via regulating epithelial-mesenchymal transition (EMT). However, its biological behavior in human malignant melanoma remains unclear. In this study, MACC1 downregulation was established in two melanoma cell lines (A375 and G361 cells) using RNA interference, as confirmed by quantitative real time PCR (qRT-PCR) and Western blot analysis. Subsequently, we investigated the effects of MACC1 silencing on cell mobility, migration and invasion using scratch wound and Transwell assays...
September 5, 2016: Bioscience Trends
Na Zhang, Yuyan Gui, Xuemin Qiu, Wei Tang, Lisha Li, Hans-Jürgen Gober, Dajin Li, Ling Wang
Recent studies have suggested that dehydroepiandrosterone (DHEA) might serve as a form of immunomodulatory therapy for postmenopausal osteoporosis (PMO). The current study investigated the effects of DHEA administration on ovariectomy (OVX)-induced bone loss and its corresponding immunological changes. Adult OVX mice were treated with DHEA or 17-β-estradiol (E2) for 12 weeks, with or without the aromatase inhibitor letrozole. DHEA improved bone mass after OVX and displayed action like that of E2 with regard to decreasing osteoclast-related parameters...
September 5, 2016: Bioscience Trends
Qi Tang, Peipei Song, Lingzhong Xu
On June 6, 2016, as a mode expected to open a new prospect for tiered system of medical care in China, family physicians contracted healthcare was officially launched, intending to facilitate such healthcare be universal coverage by 2020.There are some doubts as to whether this goal is possible. The role of family physicians contracted healthcare in China should also be carefully identified. We hold that family physicians contracted healthcare will promote healthcare reform if it provides a "Cardiotonic" that alleviates the long-standing inequitable allocation of healthcare resources...
September 5, 2016: Bioscience Trends
Jinjin Zhang, Jiaqiang Xiong, Li Fang, Zhiyong Lu, Meng Wu, Liangyan Shi, Xian Qin, Aiyue Luo, Shixuan Wang
Numerous studies have reported that human umbilical cord mesenchymal stem cell (hUCMSC) therapy can rescue the structure and function of injured tissues. The aims of this study were to explore the protective role of hUCMSC transplantation in a model of accelerated ovarian aging and to compare 2 methods of transplanting hUCMSCs, i.e. i) via intravenous injection (IV) and ii) in situ ovarian micro injection (MI). Female mice were subjected to superovulation and ozone inhalation to create a model of accelerated ovarian aging with a decline in both the quantity and quality of oocytes...
September 5, 2016: Bioscience Trends
Javor K Kashlov, Ivan S Donev, Jordanka G Doneva, Veselin D Valkov, Arpine D Kirkorova, Peter I Ghenev, Nikolay V Conev, Temenuzhka R Radeva, Borislav D Ivanov, Zhaneta T Georgieva
The current study examined the serum levels of receptor-interacting protein kinase 3 (RIPK3) in 51 patients with New York Heart Association (NYHA) class III-IV heart failure, 53 patients with myocardial infarction with ST elevation (STEMI), and 19 healthy subjects serving as a control group. An enzyme-linked immunoadsorbent assay (ELISA) was used to measure the levels of RIPK3 expression in serum. The area under the receiver operating characteristic curve (AUC) was then used to evaluate the predictive performance of RIPK3 and troponin I in patients with STEMI...
September 5, 2016: Bioscience Trends
Tianhui Zhou, Min Jin, Yongsen Ding, Yi Zhang, Ye Sun, Shiqian Huang, Qing Xie, Congfeng Xu, Wei Cai
Hepatitis B virus (HBV) infection brings a huge challenge for medical health practitioners. It has been reported that invaded HBV escapes autophagic degradation through inhibiting lysosome maturation following enhanced autophagy formation, which putatively contributes to HBV replication and infection. However, the underlying mechanism by which HBV escapes from autophagic degradation remains elusive. In this study, we monitored the autophagic process using HepG2 cells and mice without or with transient HBV DNA plasmid transfection (pHepG2) or stable HBV infection (HepG2...
September 5, 2016: Bioscience Trends
Yoshihiro Miyazaki, Takashi Kokudo, Katsumi Amikura, Yumiko Kageyama, Amane Takahashi, Nobuhiro Ohkohchi, Hirohiko Sakamoto
We aimed to evaluate the feasibility of pancreaticoduodenectomy (PD) in elderly patients. We retrospectively analyzed data from 206 patients who underwent PD between 2008 and 2015. The patients were divided into two groups: patients aged < 70 years (n = 117) and those aged ≥ 70 years (n = 89). To update the outcome of PD in elderly patients, we performed a systematic review of published work. The preoperative patient characteristics were similar between the two groups except for hypertension, which was significantly more frequent in the older group (25% vs...
September 5, 2016: Bioscience Trends
Qian Zhang, Jianbo Wang, Zhengsong Gu, Qing Zhang, Hong Zheng
The current study aimed to investigate the effect of lycopene on the blood-spinal cord barrier (BSCB) after spinal cord injury (SCI) in a mouse model. Lycopene inhibited lipid peroxidation and oxidative DNA damage as a highly efficient antioxidant and free radical scavenger. Lycopene (4 mg/kg/d) was administrated immediately following SCI. The permeability of the BSCB and water content in the spinal cord tissue were evaluated. Additionally, levels of expression of tight junction proteins and heme oxygenase-1 (HO-1) were determined with Western blotting...
September 5, 2016: Bioscience Trends
Abu Iftiaf Md Salah Ud-Din, Anna Roujeinikova
Chemotaxis towards nutrients plays a crucial role in root colonization by Pseudomonas fluorescens. The P. fluorescens chemotactic transducer of amino acids type A (CtaA) mediates movement towards amino acids present in root exudates. In this study, the periplasmic sensory domain of CtaA has been crystallized by the hanging-drop vapor diffusion method using ammonium sulfate as a precipitating agent. A complete data set was collected to 1.9 Å resolution using cryocooling conditions and synchrotron radiation...
September 5, 2016: Bioscience Trends
Liang Guan, Gang Chen, Jiali Zhang, Ling Wang
Whether radioactive iodine treatment of Graves' disease (GD) during pregnancy will increase pregnancy loss and affect fetal development is still a matter of concern. From May 2005 to December 2015, 2,276 childbearing-age women with GD received iodine-131 treatment in our departments and were retrospectively enrolled in our study. When some of them were found to have been pregnant, their thyroid functions were measured every 4 weeks, in addition, thyroid-stimulating hormone (TSH) was measured 6 weeks after delivery...
September 5, 2016: Bioscience Trends
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