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Journal of Zhejiang University. Science. B

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https://read.qxmd.com/read/30666851/novel-ractopamine-protein-carrier-conjugation-and-its-application-to-the-lateral-flow-strip-test-for-ractopamine-detection-in-animal-feed
#1
Pattarachaya Preechakasedkit, Nattaya Ngamrojanavanich, Nanthika Khongchareonporn, Orawon Chailapakul
In this work, a novel conjugate of ractopamine and bovine serum albumin (RAC-BSA) has been developed via the Mannich reaction, with a mole coupling ratio for RAC-BSA of 9:1. The proposed conjugation method provides a simple and one-step method with the use of fewer reagents compared with other conjugation methods for competitive immunoassays. RAC-BSA conjugation was used to fabricate a competitive lateral flow strip test for RAC detection in animal feed. For sample preparation, RAC was spiked in swine feed purchased from the local markets in Thailand, and methanol and running buffer at a volume ratio of 10:90 was used as extraction buffer...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30666850/oral-administration-of-lactobacillus-rhamnosus-gg-to-newborn-piglets-augments-gut-barrier-function-in-pre-weaning-piglets
#2
Yang Wang, Li Gong, Yan-Ping Wu, Zhi-Wen Cui, Yong-Qiang Wang, Yi Huang, Xiao-Ping Zhang, Wei-Fen Li
To understand the effects of Lactobacillus rhamnosus GG (ATCC 53103) on intestinal barrier function in pre-weaning piglets under normal conditions, twenty-four newborn littermate piglets were randomly divided into two groups. Piglets in the control group were orally administered with 2 mL 0.1 g/mL sterilized skim milk while the treatment group was administered the same volume of sterilized skim milk with the addition of viable L. rhamnosus at the 1st, 3rd, and 5th days after birth. The feeding trial was conducted for 25 d...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30666849/cerebrospinal-fluid-otorrhea-secondary-to-congenital-inner-ear-dysplasia-diagnosis-and-management-of-18-cases
#3
Bing Wang, Wen-Jia Dai, Xiao-Ting Cheng, Wen-Yi Liuyang, Ya-Sheng Yuan, Chun-Fu Dai, Yi-Lai Shu, Bing Chen
OBJECTIVE: To describe the characteristics of the clinical presentation, diagnosis, surgical methods, and outcomes of patients with otogenic cerebrospinal fluid (CSF) leakage secondary to congenital inner ear dysplasia. METHODS: A retrospective review was performed of 18 patients with otogenic CSF leakage secondary to inner ear dysplasia who underwent surgery in our group from 2007 to 2017 and had a follow-up of at least 4 months. The average length of follow-up was three years...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30666848/frontiers-in-auditory-bioscience-and-technology-a-special-feature-on-recent-advances-in-hearing-research
#4
Yen-Fu Cheng
Hearing impairment has become one of the most common sensory disabilities. The World Health Organization (WHO) estimates that 466 million people were living with disabling hearing loss in 2018, and that number could rise to 900 million by 2050. Conductive hearing loss, which predominantly involves the sound-transmitting route of the outer and middle ear, has been well handled by antibiotics and surgery. However, sensorineural hearing loss, which involves the inner ear and structures further within the auditory pathway, has very limited biological treatment options (current treatment options include only hearing amplification and cochlear implants)...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30614234/a-frameshift-mutation-in-exon-19-of-mlh1-in-a-chinese-lynch-syndrome-family-a-pedigree-study
#5
Qiao-Qi Sui, Wu Jiang, Xiao-Dan Wu, Yi-Hong Ling, Zhi-Zhong Pan, Pei-Rong Ding
Lynch syndrome (LS), an autosomal dominantly inherited disease previously known as hereditary non-polyposis colorectal cancer (HNPCC), leads to a high risk of colorectal cancer (CRC) as well as malignancy at certain sites including endometrium, ovary, stomach, and small bowel (Hampel et al., 2008; Lynch et al., 2009). Clinically, LS is considered the most common hereditary CRC-predisposing syndrome, accounting for about 3% of all CRC cases (Popat et al., 2005). LS is associated with mutations of DNA mismatch repair (MMR) genes such as MLH1, MSH2, MSH6, PMS2, and EPCAM (Ligtenberg et al...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30614233/systematic-study-of-the-quality-and-safety-of-chilled-pork-from-wet-markets-supermarkets-and-online-markets-in-china
#6
Dong-Wen Hu, Chen-Xing Liu, Hong-Bo Zhao, Da-Xi Ren, Xiao-Dong Zheng, Wei Chen
BACKGROUND: With increasing media coverage of food safety incidents, such as that of clenbuterol residues in pork, food safety has become a major public health concern in China. Rapidly developing online markets attract increasing numbers of Chinese consumers to purchase food on the Internet. However, the quality and safety of food sold online are uncertain and are less reported on. OBJECTIVE: This research aimed to systematically study the quality and safety of chilled pork from wet markets, supermarkets, and online markets in China...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30614232/identification-of-a-novel-strain-streptomyces-blastmyceticus-jzb130180-and-evaluation-of-its-biocontrol-efficacy-against-monilinia-fructicola
#7
Mi Ni, Qiong Wu, Hong-Li Wang, Wei-Cheng Liu, Bin Hu, Dian-Peng Zhang, Juan Zhao, De-Wen Liu, Cai-Ge Lu
Peach brown rot, caused by Monilinia fructicola, is one of the most serious peach diseases. A strain belonging to the Actinomycetales, named Streptomyces blastmyceticus JZB130180, was found to have a strong inhibitory effect on M. fructicola in confrontation culture. Following the inoculation of peaches in vitro, it was revealed that the fermentation broth of S. blastmyceticus JZB130180 had a significant inhibitory effect on disease development by M. fructicola. The fermentation broth of S. blastmyceticus JZB130180 had an EC50 (concentration for 50% of maximal effect) of 38...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30614231/effects-of-zj0273-on-barley-and-growth-recovery-of-herbicide-stressed-seedlings-through-application-of-branched-chain-amino-acids
#8
Ling Xu, Jian-Yao Shou, Rafaqat Ali Gill, Xiang Guo, Ullah Najeeb, Wei-Jun Zhou
In this study, we evaluated the effect of the herbicide propyl 4-(2-(4,6-dimethoxypyrimidin-2-yloxy)benzylamino) benzoate (ZJ0273) on barley growth and explored the potential to trigger growth recovery through the application of branched-chain amino acids (BCAAs). Barley plants were foliar-sprayed with various concentrations of ZJ0273 (100, 500, or 1000 mg/L) at the four-leaf stage. Increasing either the herbicide concentration or measurement time after herbicide treatment significantly impaired plant morphological parameters such as plant height and biomass, and affected physiological indexes, i...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30614230/purification-and-identification-of-novel-cytotoxic-oligopeptides-from-soft-coral-sarcophyton-glaucum
#9
Yixian Quah, Nor Ismaliza Mohd Ismail, Jillian Lean Sim Ooi, Yang Amri Affendi, Fazilah Abd Manan, Lai-Kuan Teh, Fai-Chu Wong, Tsun-Thai Chai
Globally, peptide-based anticancer therapies have drawn much attention. Marine organisms are a reservoir of anticancer peptides that await discovery. In this study, we aimed to identify cytotoxic oligopeptides from Sarcophyton glaucum. Peptides were purified from among the S. glaucum hydrolysates produced by alcalase, chymotrypsin, papain, and trypsin, guided by a methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay on the human cervical cancer (HeLa) cell line for cytotoxicity evaluation. Purification techniques adopted were membrane ultrafiltration, gel filtration chromatography, solid phase extraction (SPE), and reversed-phase high-performance liquid chromatography (RP-HPLC)...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30614229/interferon-%C3%AE-regulates-cell-malignant-growth-via-the-c-abl-hdac2-signaling-pathway-in-mammary-epithelial-cells
#10
Wen-Bo Ren, Xiao-Jing Xia, Jing Huang, Wen-Fei Guo, Yan-Yi Che, Ting-Hao Huang, Lian-Cheng Lei
Interferon-γ (IFN-γ) has been used to control cancers in clinical treatment. However, an increasing number of reports have suggested that in some cases effectiveness declines after a long treatment period, the reason being unclear. We have reported previously that long-term IFN-γ treatment induces malignant transformation of healthy lactating bovine mammary epithelial cells (BMECs) in vitro. In this study, we investigated the mechanisms underlying the malignant proliferation of BMECs under IFN-γ treatment...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30614228/experiments-that-led-to-the-first-gene-edited-babies-the-ethical-failings-and-the-urgent-need-for-better-governance
#11
Jing-Ru Li, Simon Walker, Jing-Bao Nie, Xin-Qing Zhang
The rapid developments of science and technology in China over recent decades, particularly in biomedical research, have brought forward serious challenges regarding ethical governance. Recently, Jian-kui HE, a Chinese scientist, claimed to have "created" the first gene-edited babies, designed to be naturally immune to the human immunodeficiency virus (HIV). The news immediately triggered widespread criticism, denouncement, and debate over the scientific and ethical legitimacy of HE's genetic experiments...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30614227/ethical-considerations-of-cellular-immunotherapy-for-cancer
#12
Sang-Sang Ren, Jing-Wen Deng, Meng Hong, Yan-Li Ren, Hai-Jing Fu, Yan-Ning Liu, Zhi Chen
With the rapid development of immunology, molecular biology, and associated technologies such as next-generation sequencing, cellular immunotherapy has recently become the fourth major cancer treatment. Immunotherapies based on T cells, natural killer cells, and dendritic cells play key roles in cancer immunotherapy. However, their application in clinical practice raises several ethical issues. Thus, studies should focus on proper adherence to basic ethical principles that can effectively guide and solve related clinical problems in the course of treatment, improve treatment effects, and protect the rights and interests of patients...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30614226/a-systematic-review-of-herbal-medicines-for-the-treatment-of-cancer-cachexia-in-animal-models
#13
Bongki Park, Sooseong You, William C S Cho, Jun-Yong Choi, Myeong Soo Lee
OBJECTIVE: The aim of this study is to summarize preclinical studies on herbal medicines used to treat cancer cachexia and its underlying mechanisms. METHODS: We searched four representing databases, including PubMed, EMBASE, the Allied and Complementary Medicine Database, and the Web of Science up to December 2016. Randomized animal studies were included if the effects of any herbal medicine were tested on cancer cachexia. The methodological quality was evaluated by the Collaborative Approach to Meta-Analysis and Review of Animal Data from Experimental Studies (CAMARADE) checklist...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30614225/role-of-cytoplasmic-lncrnas-in-regulating-cancer-signaling-pathways
#14
Pei-Fen Fu, Xin Zheng, Xiao Fan, Ai-Fu Lin
Cancer remains a serious healthcare problem despite significant improvements in early detection and treatment approaches in the past few decades. Novel biomarkers for diagnosis and therapeutic strategies are urgently needed. In recent years, long noncoding RNAs (lncRNAs) have been reported to be aberrantly expressed in tumors and show crosstalk with key cancer-related signaling pathways. In this review, we summarized the current progress of research on cytoplasmic lncRNAs and their roles in regulating cancer signaling and tumor progression, further characterization of which may lead to effective approaches for cancer prevention and therapy...
2019: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30406641/new-snp-variants-of-marveld2-dfnb49-associated-with-non-syndromic-hearing-loss-in-chinese-population
#15
LETTER
Jing Zheng, Wen-Fang Meng, Chao-Fan Zhang, Han-Qing Liu, Juan Yao, Hui Wang, Ye Chen, Min-Xin Guan
Non-syndromic hearing loss (NSHL) is a common defect in humans. Variants of MARVELD2 at the DFNB49 locus have been shown to cause bilateral, moderate to profound NSHL. However, the role of MARVELD2 in NSHL susceptibility in the Chinese population has not been studied. Here we conducted a case-control study in an eastern Chinese population to profile the spectrum and frequency of MARVELD2 variants, as well as the association of MARVELD2 gene variants with NSHL. Our results showed that variants identified in the Chinese population are significantly different from those reported in Slovak, Hungarian, and Czech Roma, as well as Pakistani families...
November 8, 2018: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30198238/factors-influencing-the-accuracy-of-the-denitrifier-method-for-determining-the-oxygen-isotopic-composition-of-nitrate
#16
Man Zhang, Jia-Chun Shi, Lao-Sheng Wu
The denitrifier method is widely used as a novel pretreatment method for the determination of nitrogen and oxygen isotope ratios as it can provide quantitative and high-sensitivity measurements. Nevertheless, the method is limited by relatively low measurement accuracy for δ18 O. In this study, we analyzed the factors influencing the accuracy of δ18 O determination, and then systematically investigated the effects of dissolved oxygen concentrations and nitrate sample sizes on estimates of the δ15 N and δ18 O of nitrate reference materials...
September 8, 2018: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30187712/in-vitro-culture-of-mammalian-inner-ear-hair-cells
#17
Lu-Wen Zhang, Xiao-Hui Cang, Ye Chen, Min-Xin Guan
Auditory function in vertebrates depends on the transduction of sound vibrations into electrical signals by inner ear hair cells. In general, hearing loss resulting from hair cell damage is irreversible because the human ear has been considered to be incapable of regenerating or repairing these sensory elements following severe injury. Therefore, regeneration and protection of inner ear hair cells have become an exciting, rapidly evolving field of research during the last decade. However, mammalian auditory hair cells are few in number, experimentally inaccessible, and barely proliferate postnatally in vitro...
September 6, 2018: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/30112880/bone-morphogenetic-proteins-and-inner-ear-development
#18
REVIEW
Jiao-Yao Ma, Dan You, Wen-Yan Li, Xiao-Ling Lu, Shan Sun, Hua-Wei Li
Bone morphogenetic proteins (BMPs) are the largest subfamily of the transforming growth factor-β superfamily, and they play important roles in the development of numerous organs, including the inner ear. The inner ear is a relatively small organ but has a highly complex structure and is involved in both hearing and balance. Here, we discuss BMPs and BMP signaling pathways and then focus on the role of BMP signal pathway regulation in the development of the inner ear and the implications this has for the treatment of human hearing loss and balance dysfunction...
August 4, 2018: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/29971995/nucleocapsid-protein-from-porcine-epidemic-diarrhea-virus-isolates-can-antagonize-interferon-%C3%AE-production-by-blocking-the-nuclear-factor-%C3%AE%C2%BAb-nuclear-translocation
#19
Ying Shan, Zi-Qi Liu, Guo-Wei Li, Cong Chen, Hao Luo, Ya-Jie Liu, Xun-Hui Zhuo, Xing-Fen Shi, Wei-Huan Fang, Xiao-Liang Li
Porcine epidemic diarrhea virus (PEDV) is a highly infectious pathogen that can cause severe diseases in pigs and result in enormous economic losses in the worldwide swine industry. Previous studies revealed that PEDV exhibits an obvious capacity for modulating interferon (IFN) signaling or expression. The newly discovered type III IFN, which plays a crucial role in antiviral immunity, has strong antiviral activity against PEDV proliferation in IPEC-J2 cells. In this study, we aimed to investigate the effect of PEDV nucleocapsid (N) protein on type III IFN-λ...
July 2018: Journal of Zhejiang University. Science. B
https://read.qxmd.com/read/29971994/stability-of-a-type-2-diabetes-rat-model-induced-by-high-fat-diet-feeding-with-low-dose-streptozotocin-injection
#20
Xiao-Xuan Guo, Yong Wang, Kai Wang, Bao-Ping Ji, Feng Zhou
OBJECTIVE: The present study aims at determining the stability of a popular type 2 diabetes rat model induced by a high-fat diet combined with a low-dose streptozotocin injection. METHODS: Wistar rats were fed with a high-fat diet for 8 weeks followed by a one-time injection of 25 or 35 mg/kg streptozotocin to induce type 2 diabetes. Then the diabetic rats were fed with regular diet/high-fat diet for 4 weeks. Changes in biochemical parameters were monitored during the 4 weeks...
July 2018: Journal of Zhejiang University. Science. B
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