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https://www.readbyqxmd.com/read/29240994/using-mutations-for-pesticide-resistance-to-identify-the-cause-of-toxicity-in-environmental-samples
#1
Donald P Weston, Helen C Poynton, Kaley Major, Gary Wellborn, Michael J Lydy, Christoph Moschet, Richard Edward Connon
Traditional Toxicity Identification Evaluations (TIE) are applied to identify causal agents in complex environmental samples showing toxicity, and rely upon physical or chemical manipulation of samples. However, mutations conferring toxicant resistance provide the opportunity for a novel biologically-based TIE. Populations within the Hyalella azteca complex from pesticide-affected waterways were two and three orders of magnitude more resistant to the pyrethroid cyfluthrin and the organophosphate chlorpyrifos, respectively, than laboratory-cultured H...
December 14, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29237669/a-play-that-went-wrong-unique-presentation-of-bowel-perforation-from-an-unusually-large-per-rectal-foreign-body
#2
Saad Ikram, Shailendra Singh, Ramana Kallam, Ajay Dabra
Colorectal foreign bodies (FBs) are not unheard of in the province of surgery. They are commonly seen in men ranging from 20 to 90 years of age with a bimodal age distribution. A variety of objects have been described and reported in literature. Management involves a complete history and examination followed by the necessary investigations. Most of the time they can be removed at bedside with some manipulation techniques employing the use of some ingenious devices and/or endoscopy for adamant objects. But persistent FBs or those that are high in the rectum or those that present with complications will require operative management...
December 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29237369/signal-enhancement-strategies-for-refractive-index-sensitive-nanobiosensor
#3
Amir Syahir, Kotaro Kajikawa, Hisakazu Mihara
Direct bio-monitoring essentially involves optical means since the photon has insignificant effects over biomolecules. Over the years, the laser induced surface plasmon resonance method with various modifications as well as versatile localized plasmon excited by incoherent light have facilitated in recording many nanobiological activities. Yet monitoring interactions of small molecules including drugs requires signal amplification and improvement on signal-to-noise ratio. This paper focused on how the refractive index based nanobio-sensoring gold platform can produce more efficient, adaptable and more practical detection techniques to observe molecular interactions at a high degree of sensitivity...
December 13, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/29236261/reactivation-assay-to-identify-direct-targets-of-the-nonsense-mediated-mrna-decay-pathway-in-drosophila
#4
Jonathan O Nelson, Mark M Metzstein
Transcriptome analysis provides a snapshot of cellular gene expression and is used to determine how cells and organisms respond to genetic or environmental changes. Identifying the transcripts whose expression levels are regulated directly by the manipulation being examined from those whose expression changes as a secondary cause from the primary changes requires additional analyses. Here we present a technique used to distinguish direct targets of the nonsense-mediated mRNA decay (NMD) pathway in Drosophila from secondary gene expression effects caused by loss of this pathway...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29235270/lamellar-keratoplasty-using-position-guided-surgical-needle-and-m-mode-optical-coherence-tomography
#5
Sungwon Shin, Jung Kweon Bae, Yujin Ahn, Hyeongeun Kim, Geonho Choi, Young-Sik Yoo, Choun-Ki Joo, Sucbei Moon, Woonggyu Jung
Deep anterior lamellar keratoplasty (DALK) is an emerging surgical technique for the restoration of corneal clarity and vision acuity. The big-bubble technique in DALK surgery is the most essential procedure that includes the air injection through a thin syringe needle to separate the dysfunctional region of the cornea. Even though DALK is a well-known transplant method, it is still challenged to manipulate the needle inside the cornea under the surgical microscope, which varies its surgical yield. Here, we introduce the DALK protocol based on the position-guided needle and M-mode optical coherence tomography (OCT)...
December 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29233552/a-refined-culture-system-for-human-induced-pluripotent-stem-cell-derived-intestinal-epithelial-organoids
#6
Yu Takahashi, Shintaro Sato, Yosuke Kurashima, Tomohisa Yamamoto, Shiho Kurokawa, Yoshikazu Yuki, Naoki Takemura, Satoshi Uematsu, Chen-Yi Lai, Makoto Otsu, Hiroshi Matsuno, Hideki Osawa, Tsunekazu Mizushima, Junichi Nishimura, Mikio Hayashi, Takayuki Yamaguchi, Hiroshi Kiyono
Gut epithelial organoids are routinely used to investigate intestinal biology; however, current culture methods are not amenable to genetic manipulation, and it is difficult to generate sufficient numbers for high-throughput studies. Here, we present an improved culture system of human induced pluripotent stem cell (iPSC)-derived intestinal organoids involving four methodological advances. (1) We adopted a lentiviral vector to readily establish and optimize conditioned medium for human intestinal organoid culture...
December 1, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29232570/development-of-an-orthosis-for-simultaneous-three-dimensional-correction-of-clubfoot-deformity
#7
Kanwaljit S Khas, Pulak M Pandey, Alok R Ray
BACKGROUND: Clubfoot is a three-dimensional deformity of the foot in which the foot is twisted in three mutually perpendicular planes from the normal shape of the foot. Of the various treatment methods that are available to manage clubfoot, non-operative approaches are preferred. The conventional non-operative method of treatment is to apply a series of casts to the infant's clubfoot to gradually manipulate its position. However, prolonged use of casts can result in skin rash, skin dehydration and ulcers on the soft skin of an infant...
December 6, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29232160/microrna-145-antagonism-reverses-tgf-%C3%AE-inhibition-of-f508del-cftr-correction-in-airway-epithelia
#8
Farruk Lutful Kabir, Namasivayam Ambalavanan, Gang Liu, Peng Li, George M Solomon, Charitharth V Lal, Marina Mazur, Brian Halloran, Tomasz Szul, William T Gerthoffer, Steven M Rowe, William T Harris
INTRODUCTION: microRNAs (miRNAs) destabilize mRNA transcripts and inhibit protein translation. miR-145 is of particular interest in cystic fibrosis (CF) as it has a direct binding site in the 3'-untranslated region of CFTR and is upregulated by the CF genetic modifier TGF-β. HYPOTHESIS: miR-145 mediates TGF-β inhibition of CFTR synthesis and function in airway epithelia. METHODS: Primary human CF (F508del homozygous) and non-CF airway epithelial cells (AECs) were grown to terminal differentiation at air-liquid interface on permeable supports...
December 12, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29232038/novel-techniques-and-preliminary-results-of-ex-vivo-liver-resection-and-autotransplantation-for-end-stage%C3%A2-hepatic-alveolar-echinococcosis-a-study-of-31-cases
#9
Xianwei Yang, Yiwen Qiu, Bin Huang, Wentao Wang, Shu Shen, Xi Feng, Yonggang Wei, Jianyong Lei, Jichun Zhao, Bo Li, Tianfu Wen, Lunan Yan
Ex vivo liver resection combined with autotransplantation is a recently introduced approach to cure end-stage hepatic alveolar echinococcosis (HAE), which is considered unresectable by conventional radical resection due to echinococcal dissemination into the crucial intrahepatic conduits and adjacent structures. This manuscript aims discuss the manipulation details and propose reasonable indications for this promising technique. All patients successfully underwent liver autotransplantation with no intraoperative mortality...
December 12, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29231609/-manual-acupuncture-versus-electroacupuncture-for-menopausal-syndrome-a-randomized-controlled-trial
#10
Caiyuzhu Wen, Yafei Liu, Xiaoli Pan, Zhen Mao, Li Zhou, Hongxing Zhang
OBJECTIVE: To compare the clinical therapeutic effects and safety on menopausal symptoms between manual acupuncture (MA) and electroacupuncture (EA). METHODS: Fifty patients were randomized into an MA group (25 cases) and an EA group (25 cases). In the MA group, the regular needling technique and pseudo-EA were used at Guanyuan (CV 4), Zigong (EX-CA 1), Tianshu (ST 25) and Sanyinjiao (SP 6). In the EA group, the acupoints were the same as the MA group and stimulated with EA and pseudo-MA (no manipulation applied in treatment), with disperse-dense wave, 10 Hz/50 Hz, 0...
May 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29231601/-exploration-on-two-methods-of-waiting-for-qi-in-needle-insertion-and-withdrawal-of-acupuncture-reinforcing-and-reducing-technique-recorded-in-neijing-the-yellow-emperor-s-classic-of-internal-medicine
#11
Suyun Li, Jingsheng Zhao
The reinforcing and reducing technique based on the speed of needle insertion and withdrawal is the important acupuncture technique recorded in Neijing (The Yellow Emperor's Classic of Internal Medicine). Regarding the speed of needle insertion and withdrawal, the timing of needle insertion and withdrawal is one of the key factors to judge the therapeutic effects. In the paper, the origin was studied on the two methods of waiting for qi recorded in Neijing (The Yellow Emperor's Classic of Internal Medicine), e...
April 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29231591/-exploration-of-acupoint-combination-and-needling-techniques-in-the-reinforcing-and-reducing-manipulation-at-different-acupoints
#12
Qing Dai, Xiesun Sheng, Feng Chen
The reinforcing and reducing manipulation at different acupoints is a kind of acupuncture manipulations and has satisfactory clinical therapeutic effects, combined with a proper needling techniques. The reinforcing needling method is used in the upper and the reducing one in the lower, the distal acupoints are combined with the nearby acupoints. The local acupoints or adjcant acupoints of the affected area are regarded as the nearby acupoints, e.g. the acupoints in the upper. The distant acupoints and the acupoints on the hand and foot are named as distal acupoints, e...
April 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29231557/-discussion-on-rules-of-acupoint-selection-for-vascular-dementia
#13
Shuai Li, Jie Tan, Hong Zhang, Guilan Huang, Duoxi Deng, Quanrui Jiang
OBJECTIVE: The clinical research literature regarding acupuncture treatment for vascular dementia was reviewed and analyzed to provide the references for clinical selection and compatibility of acupoints. METHODS: With computer and manual retrieval method, the clinical literature regarding acupuncture treatment for vascular dementia in recent 10 years was collected. The acupoint type, meridian and use frequency were analyzed. RESULTS: Totally 38 articles of acupuncture treatment for vascular dementia were screened; the most selected meridians were the governor vessel, gallbladder meridian, stomach meridian and spleen meridian; the main acupoints with frequency of more than 5 times were Baihui (GV 20), Sishencong (EX-HN 1), Shenting (GV 24), Fengchi (SP 40) and Shuigou (GV 26); the matching acupoints with frequency of more than 5 times were Fenglong (ST 40), Zusanli (ST 36), Taichong (LR 3), Taixi (KI 3), Sanyinjiao (SP 6), Xuehai (SP 10), Zhongwan (CV 12), Neiguan (PC 6), Fengchi (GB 20)...
July 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29231434/-exploration-on-three-eye-needling-technique-of-acupuncture
#14
Yu Wu, Jie Chen, Shaoling Li, Qing Yuan
The "three eye-needling" technique is one of the important component of Jin's three needling therapy, mainly used for the treatment of eye disorders such as optic atrophy, macular pigment degeneration, myopia, hyperopia, strabismus, amblyopia, diplopia, glaucoma, cataract, etc. In the paper, Jin's "three eye-needling" technique is explored, including the keys of manipulation, operation procedure and basic skills. This technique is particularly for "mind regulation", focusing on tranquilizing, observing and concentrating the mind...
March 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29231353/-efficacy-of-filiform-needle-manipulation-on-primary-dysmenorrhea-a-systematic-review
#15
Junjun Sun, Yafeng Wang, Zhuang Zhang, Huijuan Cao, Pei Wang, Minyi Zhao, Nijuan Hu, Guiwen Wu, Shangqing Hu, Jiang Zhu
The paper is a systematic review on the efficacy of acupuncture manipulation on primary dysmenorrhea. Ten medical literatures database at home and abroad were retrieved, including CNKI, VIP, CBM, WANFANG, MEDLINE, Cochrane, CENTRAL, CINAHL PLUS, EMBASE, AMED and PsycINFO, as well as 6 clinical trial registration platforms. All of randomized controlled trials (RCTs) on primary dysmenorrhea treated with different acupuncture manipulations were collected. The data were extracted by two persons. Finally, RevMa 5...
August 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29231334/-design-of-warm-acupuncture-technique-training-evaluation-device
#16
Ming Gao, Gang Xu, Huayuan Yang, Tangyi Liu, Wenchao Tang
To design a warm-acupuncture teaching instrument to train and evaluate its manipulation. We refer to the principle and technical operation characteristics of traditional warm-acupuncture, as well as the mechanical design and single-chip microcomputer technology. The device is consisted of device noumenon, universal acupoints simulator, vibration reset system and circuit control system, including frame, platform framework, the swing framework, universal acupoints simulator, vibration reset outfit, operation time circuit, acupuncture sensation display, and vibration control circuit, etc...
January 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29229817/comparative-transcriptomics-as-a-guide-to-natural-product-discovery-and-biosynthetic-gene-cluster-functionality
#17
Gregory C A Amos, Takayoshi Awakawa, Robert N Tuttle, Anne-Catrin Letzel, Min Cheol Kim, Yuta Kudo, William Fenical, Bradley S Moore, Paul R Jensen
Bacterial natural products remain an important source of new medicines. DNA sequencing has revealed that a majority of natural product biosynthetic gene clusters (BGCs) maintained in bacterial genomes have yet to be linked to the small molecules whose biosynthesis they encode. Efforts to discover the products of these orphan BGCs are driving the development of genome mining techniques based on the premise that many are transcriptionally silent during normal laboratory cultivation. Here, we employ comparative transcriptomics to assess BGC expression among four closely related strains of marine bacteria belonging to the genus Salinispora The results reveal that slightly more than half of the BGCs are expressed at levels that should facilitate product detection...
December 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29228770/polyelectrolyte-capping-as-straightforward-approach-towards-manipulation-of-diffusive-transport-in-mof-films
#18
Juan Alejandro Allegretto, Jimena S Tuninetti, Agustin Lorenzo, Marcelo Ceolin, Omar Azzaroni, Matias Rafti
We present experimental results demonstrating the suitability of polyelectrolyte capping as a simple and straightforward procedure to modify hydrophilic/hydrophobic character of porous films, thus allowing additional control on transport properties. In particular, we synthesized ZIF-8 Metal Organic Framework (MOF) films, an archetypal hydrophobic Zeolitic Imidazolate Framework, constituted by Zn2+ ions tetrahedrally coordinated with bidentate 2-methylimidazolate organic linker, and Poly(4-styrenesulfonic acid) as capping agent (PSS)...
December 11, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29228393/quantifying-the-arousal-threshold-using-polysomnography-in-obstructive-sleep-apnea
#19
Scott A Sands, Philip I Terrill, Bradley A Edwards, Luigi Taranto Montemurro, Ali Azarbarzin, Melania Marques, Camila M de Melo, Stephen H Loring, James P Butler, David White, Andrew Wellman
Objectives: Precision medicine for obstructive sleep apnea (OSA) requires non-invasive estimates of each patient's pathophysiological "traits". Here we provide the first, automated technique to quantify the respiratory arousal threshold-defined as the level of ventilatory drive triggering arousal from sleep-using diagnostic polysomnographic signals in patients with OSA. Methods: Ventilatory drive preceding clinically-scored arousals was estimated from polysomnographic studies by fitting a respiratory control model (Terrill P et al...
November 9, 2017: Sleep
https://www.readbyqxmd.com/read/29222966/optimizing-functional-outcomes-in-mandibular-condyle-reconstruction-with-the-free-fibula-flap-using-computer-aided-design-and-manufacturing-technology
#20
Z-Hye Lee, Tomer Avraham, Casian Monaco, Ashish A Patel, David L Hirsch, Jamie P Levine
PURPOSE: Mandibular defects involving the condyle represent a complex reconstructive challenge for restoring proper function of the temporomandibular joint (TMJ) because it requires precise bone graft alignment for full restoration of joint function. The use of computer-aided design and manufacturing (CAD/CAM) technology can aid in accurate reconstruction of mandibular condyle defects with a vascularized free fibula flap without the need for additional adjuncts. The purpose of this study was to analyze clinical and functional outcomes after reconstruction of mandibular condyle defects using only a free fibula graft with the help of virtual surgery techniques...
November 15, 2017: Journal of Oral and Maxillofacial Surgery
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