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https://www.readbyqxmd.com/read/28922558/biomechanical-properties-and-healing-effects-of-chitin-patch-in-a-rat-full-thickness-abdominal-wall-defect-model
#1
Jing Qiao, Zhiwen Jiang, Xuyue Liang, Yan Yang, Wanshun Liu, Baoqin Han
Hernia repair is usually accompanied with the implantation of a synthetic mesh, which frequently results in a foreign body response and serious complications. In the present study, a novel biodegradable chitin-based hernia patch was prepared and characterized. Biomechanical properties and biodegradability of the chitin patch were quantified in vitro and in vivo. In repair of the rat abdominal wall full-thickness defect model, the chitin patch induced more abundant new blood vessels with milder tissue inflammation and fibrosis compared with polypropylene mesh...
September 18, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28919761/effects-of-bromadiolone-poisoning-on-the-central-nervous-system
#2
Meiling Wang, Yanfeng Yang, Yiwei Hou, Wenbin Ma, Rui Jia, Jinbo Chen
Cases of rodenticide poisoning (second-generation long-acting dicoumarin rodenticide, superwarfarin) have occasionally been reported. The main symptoms of bromadiolone poisoning are skin mucosa hemorrhage, digestive tract hemorrhage, and hematuresis. However, the symptoms of central nervous system toxicity have rarely been reported. Our case reports on a 41-year-old male who had no contact with bromadiolone. His main symptoms were dizziness, unsteady gait, and abnormal behavior. Laboratory test results revealed the presence of bromadiolone in his blood and urine, a longer prothrombin time, activated partial thromboplastin time, and a high international normalized ratio...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28917854/tilia-tomentosa-pectins-exhibit-dual-mode-of-action-on-phagocytes-as-%C3%AE-glucuronic-acid-monomers-are-abundant-in-their-rhamnogalacturonans-i
#3
Yordan N Georgiev, Berit S Paulsen, Hiroaki Kiyohara, Milan Ciz, Manol H Ognyanov, Ondrej Vasicek, Frode Rise, Petko N Denev, Antonin Lojek, Tsvetelina G Batsalova, Balik M Dzhambazov, Haruki Yamada, Reidar Lund, Hilde Barsett, Albert I Krastanov, Irina Z Yanakieva, Maria G Kratchanova
Silver linden flowers contain different pectins (PSI-PSIII) with immunomodulating properties. PSI is a low-esterified pectic polysaccharide with predominant homogalacturonan region, followed by rhamnogalacturonan I (RGI) with arabinogalactan II and RGII (traces) domains. PSII and PSIII are unusual glucuronidated RGI polymers. PSIII is a unique high molecular weight RGI, having almost completely O-3 glucuronidated GalA units with >30% O-3 acetylation at the Rha units. Linden pectins induced reactive oxygen species (ROS) and NO generation from non-stimulated whole blood phagocytes and macrophages, resp...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28902810/biochemical-markers-in-blood-serum-of-patients-undergoing-various-methods-of-carotid-endarterectomy
#4
V S Kozyreva, A N Shilova, A A Karpenko, P V Ignatenko, V V Lomivorotov
The authors studied the concentration of CRP, sE-selectin, sP-selectin, sICAM-1, sICAM-3, sVCAM-1, sPECAM and endothelin-1 in blood serum of patients presenting with stenotic lesions of carotid arteries and undergoing various methods of carotid endarterectomy (CEAE): eversion CEAE (Group I) and CEAE using a xenopericardium patch (Group II). Within the time frame of the study, patients in both groups were found to have an elevated CRP level in the early postoperative period, having returned to the baseline values at 6 postoperative months, as well as an increase in the concentration of endothelin-1 at six months after surgery and a decrease of the sE-selectin concentration in the early postoperative period...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28892981/effect-of-transdermal-nitroglycerine-on-doppler-velocity-waveforms-of-the-uterine-umbilical-and-fetal-middle-cerebral-arteries-in-patients-with-chronic-placental-insufficiency-a-prospective-rct
#5
Suruchi Gupta, Meenakshi Chauhan, Jyotsna Sen, Smiti Nanda
INTRODUCTION: Increase in Nitric Oxide (NO) may be important in vascular adaptation needed to accommodate increased uteroplacental blood flow as pregnancy advances. Hence, in certain conditions like Pregnancy Induced Hypertension (PIH) and Fetal Growth Restriction (FGR), NO donors may play an effective role in increasing uteroplacental perfusion. Transdermal route appears to be a safe and effective route. AIM: To evaluate the effect of nitroglycerine patch on Doppler velocity waveforms of the uterine, umbilical and fetal middle cerebral arteries in patients with chronic placental insufficiency...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28892025/a-novel-approach-to-overcome-movement-artifact-when-using-a-laser-speckle-contrast-imaging-system-for-alternating-speeds-of-blood-microcirculation
#6
Shayan Bahadori, Tikki Immins, Thomas W Wainwright
The laser speckle contrast imager (LSCI) provides a powerful yet simple technique for measuring microcirculatory blood flow. Ideal for blood dynamic responses, the LSCI is used in the same way as a conventional Laser Doppler Imager (LDI). However, with a maximum skin depth of approximately 1 mm, the LSCI is designed to focus on mainly superficial blood flow. It is used to measure skin surface areas of up to 15 cm x 20 cm. The new technique introduced in this paper accounts for alternating speeds of microcirculations; i...
August 30, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28891819/factors-influencing-successful-lumbar-puncture-in-alzheimer-research
#7
Krista L Moulder, Lilah M Besser, Duane Beekly, Kaj Blennow, Walter Kukull, John C Morris
OBJECTIVE: Lumbar puncture (LP) is increasingly common in Alzheimer disease research; however, agreement to undergo LP varies. We sought to determine factors influencing LP consent at Alzheimer's Disease Centers (ADCs) in the United States. METHODS: A 3-part survey was distributed to each ADC: (1) ADC LP Experience; (2) LP Requestor Experience; and (3) Patient LP Experience (both Initial and Follow-up). In all, 64 LP Requestor, 579 Patient/Initial, and 404 Patient/Follow-up surveys were collected...
September 7, 2017: Alzheimer Disease and Associated Disorders
https://www.readbyqxmd.com/read/28888665/fish-scale-derived-collagen-patch-promotes-growth-of-blood-and-lymphatic-vessels-in-vivo
#8
Jun Kit Wang, Kim Pin Yeo, Yong Yao Chun, Timothy Thatt Yang Tan, Nguan Soon Tan, Véronique Angeli, Cleo Choong
In this study, Type I collagen was extracted from fish scales as a potential alternative source of collagen for tissue engineering applications. Since unmodified collagen typically has poor mechanical and degradation stability both in vitro and in vivo, additional methylation modification and 1,4-butanediol diglycidyl ether (BDE) crosslinking steps were used to improve the physicochemical properties of fish scale-derived collagen. Subsequently, in vivo studies using a murine model demonstrated the biocompatibility of the different fish scale-derived collagen patches...
September 6, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28877414/evaluation-of-the-analgesic-and-pharmacokinetic-properties-of-transdermally-administered-fentanyl-in-goats
#9
Megan J Burke, Lawrence R Soma, Raymond C Boston, Jeffery A Rudy, Thomas P Schaer
OBJECTIVE: Evaluate the analgesic properties and pharmacokinetics of transdermal fentanyl patches (TFPs) in goats. DESIGN: Prospective, randomized study. SETTING: Preclinical Testing Facility at a University Teaching Hospital. ANIMALS: Thirty-four adult female Boer-cross goats. INTERVENTIONS: Goats underwent surgery as part of a concurrent orthopedic research study. Twelve hours prior to surgery, each goat received a TFP (target dosage of 2...
September 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28875579/a-cardiac-patch-from-aligned-microvessel-and-cardiomyocyte-patches
#10
Jeremy A Schaefer, Pilar A Guzman, Sonja B Riemenschneider, Timothy J Kamp, Robert T Tranquillo
Cardiac tissue engineering aims to produce replacement tissue patches in the lab to replace or treat infarcted myocardium. However, current patches lack pre-formed microvascularization and are therefore limited in thickness and force production. In the present study, we sought to assess whether a bi-layer patch composed of a layer made from human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) and a microvessel layer composed of self-assembled human blood outgrowth endothelial cells (BOECs) and pericytes (PCs) was capable of engrafting on the epicardial surface of a nude rat infarct model and becoming perfused by the host four weeks after acute implantation...
September 5, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28868824/comparison-of-glucose-area-under-the-curve-measured-using-minimally-invasive-interstitial-fluid-extraction-technology-with-continuous-glucose-monitoring-system-in-diabetic-patients
#11
Mei Uemura, Yutaka Yano, Toshinari Suzuki, Taro Yasuma, Toshiyuki Sato, Aya Morimoto, Samiko Hosoya, Chihiro Suminaka, Hiromu Nakajima, Esteban C Gabazza, Yoshiyuki Takei
BACKGROUND: Continuous glucose monitoring (CGM) is reported to be a useful technique, but difficult or inconvenient for some patients and institutions. We are developing a glucose area under the curve (AUC) monitoring system without blood sampling using a minimally invasive interstitial fluid extraction technology (MIET). Here we evaluated the accuracy of interstitial fluid glucose (IG) AUC measured by MIET in patients with diabetes for an extended time interval and the potency of detecting hyperglycemia using CGM data as a reference...
August 2017: Diabetes & Metabolism Journal
https://www.readbyqxmd.com/read/28868204/impact-of-low-coagulation-factor-xiii-activity-in-patients-with-chronic-subdural-hematoma-associated-with-cerebrospinal-fluid-hypovolemia-a-retrospective-study
#12
Takafumi Shimogawa, Takato Morioka, Tetsuro Sayama, Tomoaki Akiyama, Sei Haga, Toshiyuki Amano, Yoshihiko Furuta, Kei Murao, Shuji Arakawa, Iwao Takeshita
BACKGROUND: Cerebrospinal fluid hypovolemia (CSFH) is sometimes associated with chronic subdural hematomas (CSHs). Affected patients often develop enlargement and recurrence of the CSH, even if appropriate treatments such as epidural blood patch (EBP) and/or burr-hole surgery for the CSH are performed. This situation may lead to subclinical coagulopathy, including low coagulation factor XIII (CFXIII) activity. We retrospectively analyzed whether CFXIII activity was involved in the development of CSHs and post-treatment exacerbation of CSHs in patients with CSFH...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28866058/surgical-fat-patch-improves-secondary-intracranial-hypotension-orthostatic-headache-associated-with-lumbosacral-dural-ectasia-case-report
#13
Beretta Elena, Franzini Andrea, Cordella Roberto, Nazzi Vittoria, Valentini Laura Grazia, Franzini Angelo
BACKGROUND: Secondary intracranial hypotension is a clinical syndrome associated with the reduction of the cerebrospinal fluid volume and dural continuity violation. The main symptoms are orthostatic headache associated with nausea, vomiting, diplopia, dizziness and tinnitus. The treatment is usually non-specific. CASE DESCRIPTION: The authors describe the case of a 37-years-old woman who developed secondary intracranial hypotension caused by lumbosacral iatrogenic dural ectasia following de-tethering surgery...
August 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28865873/statin-therapy-exacerbates-alcohol-induced-constriction-of-cerebral-arteries-via-modulation-of-ethanol-induced-bk-channel-inhibition-in-vascular-smooth-muscle
#14
Maria N Simakova, Shivantika Bisen, Alex M Dopico, Anna N Bukiya
Statins constitute the most commonly prescribed drugs to decrease cholesterol (CLR). CLR is an important modulator of alcohol-induced cerebral artery constriction (AICAC). Using rats on a high CLR diet (2% CLR) we set to determine whether atorvastatin administration (10mg/kg daily for 18-23weeks) modified AICAC. Middle cerebral arteries were pressurized in vitro at 60mmHg and AICAC was evoked by 50mM ethanol, that is within the range of blood alcohol detected in humans following moderate-to-heavy drinking. AICAC was evident in high CLR+atorvastatin group but not in high CLR diet+placebo...
September 1, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28860353/histone-deacetylase-hdac-inhibitors-relax-mouse-aorta-partly-by-their-inhibitory-action-on-l-type-ca2-channels
#15
Changbo Zheng, Mingkui Zhong, Zenghua Qi, Fan Shen, Qiannan Zhao, Lulu Wu, Yu Huang, Suk-Ying Tsang, Xiaoqiang Yao
Histone deacetylase (HDAC) inhibitors modulate acetylation/deacetylation of histone and non-histone proteins. They have been widely used for cancer treatment. However, there are only a few reports investigating the effect of HDAC inhibitors on vascular tone regulation, most of which involves chronic treatment with HDAC inhibitors. In the present study, we found that two hydroxamate-based pan-HDAC inhibitors suberoylanilide hydroxamic acid (SAHA) and trichostatin A (TSA) could partially but acutely relax the high extracellular K+-induced contraction of mouse aortas...
August 31, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28854437/the-ameliorative-effect-of-pectin-insulin-patch-on-renal-injury-in-streptozotocin-induced-diabetic-rats
#16
Ntethelelo Sibiya, Phikelelani Ngubane, Musa Mabandla
BACKGROUND/AIMS: Renal damage and dysfunction is attributed to sustained hyperglycaemia in overt diabetes. Subcutaneous insulin injections are beneficial in delaying the progression of renal dysfunction and damage in diabetics. However, the current mode of administration is associated with severe undesirable effects. In this study, we evaluated the ameliorative effects of pectin-insulin dermal patches on renal dysfunction in diabetes. METHODS: Pectin-insulin patches (20...
August 30, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/28845954/phototherapy-of-mycosis-fungoides
#17
Franz Trautinger
Mycosis fungoides (MF), the most common variant of among cutaneous T cell lymphomas (CTCL), is characterised in its early stages by clonal proliferation of malignant T-cells in the skin manifesting as erythematous patches and plaques with a chronic course and progression to cutaneous tumors and extracutaneous organs in some patients. Skin directed therapies (SDT) are primarily used for effective palliation in early stage disease. Phototherapy with ultraviolet A radiation combined with 8-methoxypsoralen (PUVA) and with ultraviolet B radiation (UVB) has a longstanding history in the treatment of MF and are highly effective in inducing remissions...
July 28, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28842735/-postoperative-blood-pressure-alterations-after-carotid-endarterectomy-implications-of-different-reconstruction-methods
#18
REVIEW
J A Celi de la Torre, D A Skrypnik, R A Vinogradov, D Böckler, S Demirel
BACKGROUND: Postoperative blood pressure alterations after carotid endarterectomy (CEA) are associated with an increased risk of morbidity and mortality. OBJECTIVE: To outline the influence of the two commonly used surgical reconstruction techniques, conventional CEA with patch plasty (C-CEA) and eversion CEA (E-CEA), as well as the innovative carotid sinus-preserving eversion CEA (SP-E-CEA) technique on postoperative hemodynamics, taking the current scientific knowledge into consideration...
August 25, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28836257/-efficacy-comparison-of-the-laparoscopic-total-extraperitoneal-prosthetic-and-the-lichtenstein-herniorrhaphy-for-inguinal-hernia
#19
Yiliang Li, Zhi Wang, Lemu Ke, Fuzeng Su, Cheng Zhang, Huiling Li, Zhi Du, Zhikai Zhu, Song Li
OBJECTIVE: To compare the efficacy and safety between laparoscopic total extraperitoneal prosthetic (TEP) and Lichtenstein herniorrhaphy in the treatment of inguinal hernia (IH). METHODS: Clinical data of 158 IH patients at our hospital from October 2015 to October 2016 were retrospectively analyzed. Among 158 patients, 85 patients underwent TEP (TEP group), and 73 underwent Lichtenstein herniorrhaphy(Lichtenstein group). Patients of TEP group received general anesthesia...
August 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28835080/-high-throughput-targeted-sequencing-panel-for-exploring-radiosensitivity-associated-genes-in-esophageal-squamous-cell-carcinoma
#20
Y Qiao, C X Hu, D A Song, S Q Li, L H Zhou, X D Jiang
Objective: To explore radiosensitivity-associated genes in esophageal squamous cell carcinoma by targeted sequencing panel. Methods: The peripheral blood from 22 esophageal squamous cell carcinoma (ESCC) patients received radiotherapy alone were collected, respectively. The genomic DNA (gDNA) of peripheral blood was extracted and used to create a library of gDNA restriction fragments. The gDNA restriction fragments were hybridized to the HaloPlex probe capture library, which comprises 356 cancer genes selected from the Catalogue of Somatic Mutations in Cancer (Cosmic) database of 2011 updated edition...
August 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
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