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Journal of the American Association for Laboratory Animal Science: JAALAS

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https://www.readbyqxmd.com/read/28443538/iohexol-clearance-for-determination-of-glomerular-filtration-rate-in-cynomolgus-monkeys-macaca-fascicularis
#1
Changqing Zhang, Shanshan Ding, Yupeng Fang, Li Zhang, Weimin Hu, Jinlian Lu, Tao Jing, Yi Tao, Xin Zhang
The purpose of this study was to validate a method for determine the glomerular filtration rate (GFR) in healthy cynomolgus monkeys by using iohexol. Eighteen healthy cynomolgus macaque monkeys (age, 4 to 6 y [mean, 5 y]; weight, 2 to 6 kg [mean, 4 kg]) were randomly entered into 3 different doses groups (3 male and 3 female macaques per group) of 30, 60, 90 mg I/kg to receive an intravenous bolus injection of iohexol. Serum iohexol concentrations were determined by using liquid chromatography-tandem mass spectrometry, and clearance rate were determined by using WinNonlin software...
April 25, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28443536/effects-of-nesting-material-on-energy-homeostasis-in-balb-canncrl-c57bl-6ncrl-and-crl-cd1-icr-mice-housed-at-20-%C3%A2-c
#2
Daniel Taylor, Angela Green, Brianna Gaskill
Discrepancies exist between the preferred temperature range for mice (26 to 32 °C) and current recommendations (20 to26 °C), which may alter metabolism and negatively affect studies using mice. Previous research indicates that nesting materialcan alleviate cold stress in mice; therefore, we sought to determine the effects of the amount of nesting material provided(0, 6, or 12 g) on heat energy loss and energy balance in 3 mouse strains housed at currently recommended temperatures duringthe daytime, a period of presumed inactivity...
April 25, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28432759/anesthetic-and-postanesthetic-effects-of-alfaxalone-butorphanol-compared-with-dexmedetomidine-ketamine-in-chinchillas-chinchilla-lanigera
#3
Lily Parkinson, Christoph Mans
Effective and safe anesthetic protocols are required for a variety of surgical and diagnostic procedures in chinchillas.Alfaxalone, a new anesthetic agent in the United States, can be administered intramuscularly and subcutaneously and is therefore potentially useful as an anesthetic induction agent in chinchillas. This study compared the anesthetic efficacy andpostanesthetic effects on food intake and fecal output of a combination of intramuscular alfaxalone (5 mg/kg) and butorphanol(0.5 mg/kg; AB anesthesia) with a combination of dexmedetomidine (0...
April 21, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28429678/intraperitoneal-administration-of-ethanol-as-a-means-of-euthanasia-for-neonatal-mice-mus-musculus
#4
Cecilia de Souza Dyer Angela K Brice And James O Marx
The humane euthanasia of animals in research is of paramount importance. Neonatal mice frequently respond differentlyto euthanasia agents when compared with adults. The AVMA's Guidelines for the Euthanasia of Animals includes intraperitonealinjection of ethanol as "acceptable with conditions," and recent work confirmed that this method is appropriate for euthanizing adult mice, but neonatal mice have not been tested. To explore this method in neonatal mice, mouse pups(C57BL/6 and CD1, 162 total) were injected with 100% ethanol, a pentobarbital-phenytoin combination, or saline at 7, 14, 21, 28, or 35 d of age...
April 20, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28425395/comparing-phlebotomy-by-tail-tip-amputation-facial-vein-puncture-and-tail-vein-incision-in-c57bl-6-mice-by-using-physiologic-and-behavioral-metrics-of-pain-and-distress
#5
Elizabeth S Moore Thomas A Cleland Wendy O Williams Christine M Peterson Bhupinder Singh Teresa L Southard Bret Pasch Rachael N Labitt And Erin K Daugherity
Tail tip amputation with minimal restraint is not widely used for mouse phlebotomy. In part, this infrequency may reflectpolicies influenced by tail tip amputation procedures for genotyping, which involve greater handling and tissue removal. Toassess tail tip amputation with minimal restraint as a phlebotomy technique, we compared it with 2 more common methods:scruffing with facial vein puncture and lateral tail vein incision with minimal restraint. Blood glucose levels, audible and ultrasonic vocalizations, postphlebotomy activity and grooming behavior, open field and elevated plus maze behaviors,nest-building scores, and histologic changes at the phlebotomy site were evaluated...
April 19, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28425390/sterility-and-stability-of-diluted-carprofen-in-a-multidose-vial-in-the-laboratory-animal-setting
#6
Gregory D Simonek Gwendolyne G Alarcio And Laurie L Brignolo
Using compounded multidose vials (cMDV) is a common practice in the laboratory animal setting, where medications oftenare diluted to provide appropriate doses to rodents. However, bacterial contamination of MDV has been well establishedin both the human and veterinary medical literature. For this study, we created 14 cMDV by diluting carprofen into sterilewater (dilution, 1:10) and stored 6 cMDV each at 5 and 24 °C. The stoppers of the cMDV were not cleaned with alcohol, andall were punctured twice daily for 28 d...
April 19, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28417829/comparison-of-3-methods-for-preventing-perianesthetic-hypothermia-in-callimicos-callimico-goeldii
#7
Sathya K Chinnadurai James G Johnson Iii And Jennifer N Langan
Perianesthetic hypothermia is one of the most common complications in veterinary anesthesia, especially in small patients with a large body surface area to mass ratio. During anesthesia, body heat can be lost through 4 mechanisms-radiation, convection,conduction, and evaporation-but anesthetists frequently address only one mechanism at a time. Here we sought to evaluate 3 methods of preventing perianesthetic hypothermia in callimicos (Callimico goeldii). In our experience, these smallNHP routinely become hypothermic under even brief inhalant anesthesia...
April 17, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28409549/elo-rating-for-tracking-rank-fluctuations-after-demographic-changes-involving-semi-free-ranging-rhesus-macaques-macaca-mulatta
#8
Lauren J Wooddell Stefano Sk Kaburu Stephen J Suomi And Amanda M Dettmer
Rhesus macaques (Macaca mulatta) are gregarious primates that form despotic societies characterized by frequent andintense aggression. Within long-term social groups, demographic changes may influence hierarchical stability, potentiallyresulting in conflict and violently abrupt hierarchical changes. This conflict can result in serious implications for animalwelfare, and thus, predictive tools would be invaluable to captive managers in determining social instabilities. Using themethod Elo-rating to track rank changes and dominance stability, we predicted that demographic changes to a populationof semi-free ranging rhesus macaques would result in changes in hierarchical stability...
April 13, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28378704/uses-and-doses-of-local-anesthetics-in-fish-amphibians-and-reptiles
#9
Frederic Chatigny Collins Kamunde Catherine M Creighton And E Don Stevens
Local anesthetics are an integral part of routine pain management in mammals, yet their use is relatively limited in fish,amphibians and reptiles. These animals frequently undergo potentially painful surgical procedures and therefore couldpossibly benefit from those drugs. Some recommendations are currently available in the literature concerning analgesic usein these animals. However the pharmacological properties, safety and often efficacy of local anesthetic drugs have not beeninvestigated yet in fish, amphibians, or reptiles...
April 4, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28374666/uses-and-doses-of-local-anesthetics-in-fish-amphibians-and-reptiles
#10
Frederic Chatigny Collins Kamunde Catherine M Creighton And E Don Stevens
Local anesthetics are an integral part of routine pain management in mammals, yet their use is relatively limited in fish,amphibians and reptiles. These animals frequently undergo potentially painful surgical procedures and therefore couldpossibly benefit from those drugs. Some recommendations are currently available in the literature concerning analgesic usein these animals. However the pharmacological properties, safety and often efficacy of local anesthetic drugs have not beeninvestigated yet in fish, amphibians, or reptiles...
April 3, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28256188/effects-of-human-management-events-on-conspecific-aggression-in-captive-rhesus-macaques-macaca-mulatta
#11
Jacob H Theil Brianne A Beisner Ashley E Hill And Brenda McCowan
Conspecific aggression in outdoor-housed rhesus macaques (Macaca mulatta) at primate research facilities is a leadingsource of trauma and can potentially influence animal wellbeing and research quality. Although aggression between macaquesis a normal part of daily social interactions, human presence might affect the frequency of various behaviors and instigateincreases in conspecific aggression. We sought to determine how and which human management events affect conspecificaggression both immediately after an event and throughout the course of a day...
March 2, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28256186/comparison-of-saliva-collection-methods-for-the-determination-of-salivary-cortisol-levels-in-rhesus-macaques-macaca-mulatta-cynomolgus-macaques-macaca-fascicularis-and-african-green-monkeys-chlorocebus-aethiops
#12
Kamala J Rapp-Santos Louis A Altamura Sarah L Norris Luis A Lugo-Roman Pedro J Rico And Christian C Hofer
The ability to quickly and accurately determine cortisol as a biomarker for stress is a valuable tool in assessing thewellbeing of NHP. In this study, 2 methods of collecting saliva (a commercial collection device and passive drool) and the resulting free salivary cortisol levels were compared with total serum cortisol concentration in rhesus macaques (Macaca mulatta),cynomolgus macaques (Macaca fascicularis) and African green monkeys (Chlorocebus aethiops) at 2 collection time points.Serum and salivary cortisol levels were determined using a competitive quantitative ELISA...
March 2, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28233507/effect-of-home-cage-bedding-in-the-induction-chamber-on-serum-cortisol-and-corticosterone-levels-in-response-to-isoflurane-induced-anesthesia-in-c57bl-6j-mice
#13
Cara P Reiter Amanda C Christy Cara H Olsen And David E Bentzel
Mice are routinely anesthetized with isoflurane in an induction chamber. The AVMA Guidelines for the Euthanasia of Animalsstates that distress should be minimized during euthanasia but does not address this point in regard to induction ofanesthesia. Here we evaluated the potential for familiar surroundings to reduce the adrenocortical response of mice duringanesthesia induction with isoflurane. However, adding bedding from the animals' home cage to the induction chamber failedto significantly reduce serum cortisol or corticosterone levels in male and female C57BL/6J mice...
February 23, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28229809/pharmacokinetic-profiles-of-meloxicam-and-sustained-release-buprenorphine-in-prairie-dogs-cynomys-ludovicianus
#14
Cynthia Cary, Nicole Lukovsky-Akhsanov, Nadia Gallardo-Romero, Cassandra Tansey, Sharon Ostergaard, Willie Taylor, Clint Morgan, Nathaniel Powell, George Lathrop, Christina Hutson
In this study, we evaluated the pharmacokinetic profiles of meloxicam and sustained-release (SR) buprenorphine in prairiedogs. The 4 treatment groups were: low-dose meloxicam (0.2 mg/kg SC), high-dose meloxicam (4 mg/kg SC), low-dosebuprenorphine SR (0.9 mg/kg SC), and high-dose buprenorphine SR (1.2 mg/kg SC). The highest plasma concentrationsoccurred within 4 h of administration for both meloxicam treatment groups. The therapeutic range of meloxicam in prairiedogs is currently unknown. However, as compared with the therapeutic range documented in other species (0...
February 22, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28211314/procedure-for-horizontal-transfer-of-patient-derived-xenograft-tumors-to-eliminate-corynebacterium-bovis
#15
Christopher A Manuel Stacey M Bagby Julie A Reisinger Umarani Pugazhenthi Todd M Pitts Stephen B Keysar John J Arcaroli And Jori K Leszczynski
Human patient-derived xenograft (PDX) tumors, propagated in immunodeficient mice, are rapidly growing in use as amodelfor cancer research. Horizontal transfer between mice, without in vitro cell culture, allows these tumors to retainmany of their unique characteristics from their individual patient of origin. However, the immunodeficient mouse strainsused to grow these tumors are susceptible to numerous opportunistic pathogens, including Corynebacterium bovis. At ourinstitution, 2 in vivo tumor banks of PDX tumors had been maintained within nude mouse colonies enzootically infectedwith C...
February 16, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28211313/detection-and-elimination-of-corynebacterium-bovis-from-barrier-rooms-by-using-an-environmental-sampling-surveillance-program
#16
Christopher A Manuel Umarani Pugazhenthi Shannon P Spiegel And Jori K Leszczynski
Rodent health-monitoring programs based on sampling an IVC system's exhaust air dust (EAD) has enhanced and evenreplaced traditional sentinels for some rodent pathogens. EAD testing by qPCR assay is an optimal surveillance methodfor the rapid detection of Corynebacterium bovis-infected immunodeficient mice. Here we demonstrate that an active EADsurveillance program for C. bovis can be used to maintain nude mice C. bovis-free after the transition from historically enzootically infected colonies. During 3 events over 3 y, rapid detection of infection, elimination of infected mice, aggressivequarantine measures, and local decontamination prevented the spread of C...
February 16, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28211310/morphologic-and-doppler-findings-from-hepatic-ultrasonography-of-normal-cynomolgus-monkeys-macaca-fascicularis
#17
Kyo Won Lee Chan Woo Cho Ji Eun Lee Hyojun Park Gyu-Seong Choi Woo Kyoung Jeong Jae Berm Park And Sungjoo Kim
The present study evaluated the anatomic and ultrasonographic features of the liver in normal cynomolgus monkeys (Macacafascicularis). Healthy, male, cynomolgus monkeys from Cambodia (n = 25; mean age, 58.1 mo) were sedated with ketamine (7mg/kg) and examined by using 2D and Doppler ultrasonography. We measured the diameters of the vascular structures and bile duct, determined the velocities of the hepatic artery and portal vein, and calculated the resistance index of the hepatic artery. Vessel diameters were: proper hepatic artery, 1...
February 16, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28195033/techniques-for-nonterminal-blood-sampling-in-black-tailed-prairie-dogs-cynomys-ludovicianus
#18
Valerie Head David Eshar And Melissa R Nau
Black-tailed prairie dogs (Cynomys ludovicianus) are used as an animal model for research on gallbladder stones and several infectious diseases. A comprehensive, instructive resource regarding the appropriate techniques for venipuncture and collection of nonterminal blood samples in this species has not yet been published. Blood samples (1 mL or larger) were readily obtained from the jugular vein, femoral vein, or cranial vena cava, whereas peripheral sites, such as the cephalic vein, saphenous vein, and tarsal vein, mainly were useful for obtaining smaller volumes...
February 13, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28188706/comparison-of-atipamezole-with-yohimbine-for-antagonism-of-xylazine-in-mice-anesthetized-with-ketamine-and-xylazine
#19
Christopher Janssen, Pauline Maiello, M Wright, Kara Kracinovsky, Joseph Newsome
The α2 adrenergic agonist xylazine produces a sedative effect and is typically combined with ketamine and used for anesthesia or chemical restraint of laboratory mice. Xylazine's sedative effect-and its undesirable side effects of bradycardia, hypotension, and poor tissue perfusion-can be reversed by administration of α2 antagonists, such as atipamezole or yohimbine. Although atipamezole and yohimbine dosing guidelines are available for mice, no controlled comparison has been performed to guide the lab animal community in the selection of one over the other...
February 10, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28185613/development-of-quantitative-real-time-pcr-assays-for-postmortem-detection-of-mycobacterium-spp-common-in-zebrafish-danio-rerio-research-colonies
#20
Danielle M Meritet Donna M Mulrooney Michael L Kent And Christiane V Löhr
Mycobacterium spp. infections are common in zebrafish kept in research facilities. These comorbidities can substantiallymodulate the responses of these fish to external and internal stimuli. Therefore, diagnostic tests to detect Mycobacterium spp.infections in zebrafish colonies prove essential. Here, we outline the development of quantitative simplex real-time PCRassays to detect the 3 Mycobacterium species most commonly identified in laboratory zebrafish. The assays targeted the heatshock protein 65 gene of M...
February 9, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
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