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Simone Regina Barros de Macêdo, Luiz André Rodrigues de Lima, Sandra Maria de Torres, Vinícius Vasconcelos Gomes de Oliveira, Rosana Nogueira de Morais, Christina Alves Peixoto, Bruno Mendes Tenorio, Valdemiro Amaro da Silva Junior
Aim: Chemical sterilization is a non-surgical method of contraception based on compounds injected into the testis to induce infertility. However, these injections can cause discomfort and pain able to impair the recovery of animals after this treatment. The objective of this study was to investigate if anti-inflammatories or pain relievers inhibited the sterilizing effect of zinc gluconate-based solution on the testis. Materials and Methods: Adult rats were treated in groups: G1 (control), G2 (dimethyl sulfoxide + dipyrone); G3 (dipyrone/zinc); G4 (dipyrone + celecoxib/zinc); G5 (dipyrone + meloxicam/zinc), and G6 (dipyrone + dexamethasone/zinc) in a single dose per day during 7 days...
May 2018: Veterinary World
D M Meléndez, S Marti, E A Pajor, D Moya, D Gellatly, E D Janzen, K S Schwartzkopf-Genswein
The aim of this study was to assess knife castration and knife castration + branding in 2-mo old calves, and the effect of a single dose of s.c. meloxicam at mitigating pain indicators. Seventy-one Angus crossbred bull calves (128 ± 18.5 kg of BW) were used in a 3 × 2 factorial design where main factors included procedure: sham (control calves, CT; n = 23), knife (KN; n = 24) or knife + branding (BK; n = 24) and medication: single s.c. administration of lactated ringer solution (NM; n = 35) or a single dose of 0...
June 15, 2018: Journal of Animal Science
Csaba Bartos, Orsolya Jójárt-Laczkovich, Gábor Katona, Mária Budai-Szűcs, Rita Ambrus, Alexandra Bocsik, Ilona Gróf, Mária Anna Deli, Piroska Szabó-Révész
Purpose: The article reports a wet milling process, where the planetary ball mill was combined with pearl milling technology to reach nanosize range of meloxicam (Mel; 100-500 nm). The main purpose was to increase the dissolution rate and extent of a poorly water-soluble Mel as nonsteroidal anti-inflammatory drug as well as to study its permeability across cultured intestinal epithelial cell layers. Methods: Viscosity of milled dispersion and particle size distribution and zeta potential of Mel were investigated and differential scanning calorimeter and X-ray powder diffractometer were used to analyse the structure of the suspended Mel...
2018: Drug Design, Development and Therapy
Berenika Szczęśniak-Sięga, Katarzyna Gębczak, Tomasz Gębarowski, Jadwiga Maniewska
Oxicams (e.g. piroxicam, meloxicam) are widely used nonsteroidal anti-inflammatory drugs (NSAIDs). A large body of evidence from epidemiological and preclinical studies has shown that NSAIDs have a chemopreventive effect on different types of cancer, especially in colorectal cancer. Moreover, mounting evidence from preclinical and clinical studies suggests that persistent inflammation functions as a driving force in the journey to cancer. What is more, inflammation induces reactive oxygen and nitrogen species, which cause damage to important cellular components (e...
June 15, 2018: Acta Biochimica Polonica
Jennilee Morrison, Cheryl B Greenacre, Robert George, Sherry Cox, Tomás Martín-Jiménez
Meloxicam is a nonsteroidal anti-inflammatory drug (NSAID) that has been used orally and intramuscularly in numerous avian species, but not studied to date, in African penguins ( Spheniscus demersus). The study describes the pharmacokinetic parameters of meloxicam after oral and intramuscular administration to African penguins. Several pilot studies were conducted initially where meloxicam (1, 0.5, and 0.25 mg/kg) was given intramuscularly to 4 birds, and orally (1 mg/kg) to 2 birds. Based on pilot study results, one group of 8 penguins was given meloxicam 0...
June 2018: Journal of Avian Medicine and Surgery
Andrew G Hill
Horner syndrome was identified in 25 of 30 777 avian admissions to Currumbin Wildlife Hospital during 2010-2016. Unilateral ptosis and erection of facial feathers were distinct findings on physical examination and consistent across 9 species. Affected birds were biased toward adults (64%) suffering traumatic injuries (88%). Concurrent injuries requiring treatment were present in 38% of cases, and 76% had additional neurologic deficits. Prognosis for release was poor, with an overall success rate of 32%. Resolution of clinical signs increased to 44% with higher doses of meloxicam and required an average hospitalization of 22 days (range, 3-78 days)...
June 2018: Journal of Avian Medicine and Surgery
Andrea L Goodnight, Sherry Cox
  Meloxicam, a COX-2 selective nonsteroidal anti-inflammatory medication, has been used in many exotic animals at doses extrapolated from domestic animal pharmacokinetic and pharmacodynamic studies. Increasing evidence suggests that significant species differences exist in meloxicam metabolism. Because of this, dose extrapolation from domestic animals may not be appropriate for exotic species. The objective of this study was to investigate the pharmacokinetics of meloxicam in a population of male Malayan flying foxes, Pteropus vampyrus, following a single oral dose of 0...
June 2018: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Dominique Van der Saag, Sabrina Lomax, Peter Andrew Windsor, Casey Taylor, Peter John White
To assess the effects of a topical anaesthetic (TA) and buccal meloxicam (BM) on behaviour, maximum wound temperature and wound morphology following amputation dehorning of beef calves, 50 unweaned Hereford calves were randomly allocated to: (1) sham dehorning / control (CON, n = 14); (2) amputation dehorning (D, n = 12); (3) amputation dehorning with pre-operative buccal meloxicam (DBM, n = 12); and (4) amputation dehorning with post-operative topical anaesthetic (DTA, n = 12). Videos of the calves were captured for 3 h following treatment...
2018: PloS One
Zuhair Alqahtani, Fakhreddin Jamali
PURPOSE: Concomitant use of some non-Aspirin nonsteroidal anti-inflammatory drugs (NANSAIDs) reduces the extent of platelet aggregation of Aspirin (acetylsalicylic acid). This is while many observational studies and clinical trials suggest that Aspirin reduces cardiovascular (CV) risk attributed to the use of NANSAIDs. Thus, the therapeutic outcome of the interaction needs to be assessed. METHODS: We searched various databases up to October 2017 for molecular interaction studies between the drugs and long-term clinical outcomes based on randomized clinical trials and epidemiological observations that reported the effect estimates of CV risks (OR, RR or HR; 95% CI) of the interacting drugs alone or in combinations...
2018: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
Igor V Ukrainets, Anna A Burian, Vyacheslav N Baumer, Svitlana V Shishkina, Lyudmila V Sidorenko, Igor A Tugaibei, Natali I Voloshchuk, Pavlo S Bondarenko
Continuing the search for new potential analgesics among the derivatives of 4-methyl-2,2-dioxo-1 H -2λ⁶,1-benzothiazine-3-carboxylic acid, the possibility of obtaining its esters by the alkylation of the corresponding sodium salt with iodoethane in dimethyl sulfoxide (DMSO) at room temperature was studied. It was found that under such conditions, together with the oxygen atom of the carboxyl group, a heteroatom of nitrogen is also alkylated. Therefore, the product of the reaction studied is a mixture of ethyl 4-methyl-2,2-dioxo-1 H -2λ⁶,1-benzothiazine-3-carboxylate (major) and its 1-ethyl-substituted analog (minor)...
May 30, 2018: Scientia Pharmaceutica
Laura D Simionato, Luciana Petrone, Mariela Baldut, Silvina L Bonafede, Adriana Inés Segall
In this work, the dissolution profiles of nine meloxicam tablet brands marketed in Argentina have been evaluated. As meloxicam is a Class 2 Biopharmaceutical Classification System (BSC) drug, interchangeability between commercial products must be demonstrated through in vivo bioequivalence studies. However, in our country, such studies remain to be performed. Dissolution studies have been performed according to USP 38 and evaluated by fitting experimental data to the zero and first-order, the Hixson-Crowell, the Higuchi, and the Weibull model-dependent methods...
May 2018: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
Satoru Mitazaki, Natsumi Kotajima, Sakiko Matsuda, Naruki Ida, Mina Iide, Shigeyoshi Honma, Miwako Suto, Naho Kato, Naohito Kuroda, Kouichi Hiraiwa, Makoto Yoshida, Sumiko Abe
AIMS: In order to clarify hepato-protective actions of estrogen, we examined the progress of carbon tetrachloride (CCl4 )-induced acute liver injury (ALI) in sham and ovariectomized (ovx) mice and the effects of dimethylthiourea (DMTU), a hydroxyl radical scavenger, and meloxicam (Melo), a selective cox-2 inhibitor, on the development of CCl4 -induced ALI. MAIN METHODS: Female C57BL/6 J mice weighing 15-20 g were performed sham or ovx operation at 8 weeks of age...
May 19, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Flávia Viana Avelar Dutra, Bruna Carneiro Pires, Tienne Aparecida Nascimento, Keyller Bastos Borges
The composite polyaniline/multiwalled carbon nanotube (PAni/MWCNT, 1:0.1 w/w) was developed with the intention of binding the adsorbent properties of two materials and using it to adsorb pharmaceuticals from aqueous media. PAni/MWCNT was characterized by scanning electron microscopy, thermogravimetry, infrared spectroscopy, pH at the point of zero charge, and the effect on the surface wettability of the material. As proof of concept, adsorption studies were carried out using meloxicam (MLX) as the pharmaceutical and it was evaluated as a function of pH, temperature, ionic strength, contact time and variation in concentration...
May 19, 2018: Journal of Environmental Management
M D Shah, D Yates, J Hunt, J C Murrell
OBJECTIVE: To investigate whether preoperative methadone provides superior perioperative analgesia compared to buprenorphine in dogs undergoing ovariohysterectomy. METHODS: Eighty female dogs were recruited to an assessor-blinded, randomised, clinical trial. Dogs received a premedication dose of 0·05 mg/kg acepromazine or 10 μg/kg medetomidine combined with either 0·3 mg/kg methadone or 20 μg/kg buprenorphine intramuscularly. Anaesthesia was induced with propofol and maintained with isoflurane...
May 21, 2018: Journal of Small Animal Practice
S Ephraim Neumann, Christian F Chamberlayne, Richard N Zare
Drug delivery systems (DDS) that allow spatially and temporally controlled release of drugs are of particular interest in the field of drug delivery. These systems create opportunities for individually tailored doses of drugs to be administered as well as reduce side effects by localizing the initial drug dose to the organ of interest. We present an electroresponsive DDS in the form of a bioresorbable nanocomposite film which operates at low voltages (<-2 V). The method is based on electrochemically generating local pH changes at an electrode surface to induce dissolution of a pH-sensitive polymer, which is used as the carrier material...
May 21, 2018: Nanoscale
Arata Matsuyama, Courtney R Schott, Geoffrey A Wood, Danielle Richardson, J Paul Woods, Anthony J Mutsaers
OBJECTIVE To determine the effectiveness of metronomic cyclophosphamide (MC) chemotherapy (primary treatment of interest) with adjuvant meloxicam administration as maintenance treatment for dogs with appendicular osteosarcoma following limb amputation and carboplatin chemotherapy. DESIGN Retrospective case series with nested cohort study. ANIMALS 39 dogs with a histologic diagnosis of appendicular osteosarcoma that underwent limb amputation and completed carboplatin chemotherapy from January 2011 through December 2015...
June 1, 2018: Journal of the American Veterinary Medical Association
Yusuke Obara, Takuji Machida, Yuho Takano, Saki Shiga, Asami Suzuki, Naoya Hamaue, Kenji Iizuka, Masahiko Hirafuji
We previously reported that cisplatin potentiated ileal 5-hydroxytryptamine (5-HT) metabolism and caused pathological changes with an inflammatory response in the delayed phase (72 h) after administration to rats. In the present study, we further investigated the time-dependent effect of cisplatin on ileal 5-HT metabolism and the effects of combining cisplatin and anti-inflammatory drugs on ileal tryptophan hydroxylase expression and pica (the consumption of non-nutritive materials such as kaolin). Cyclooxygenase-2 (COX-2) expression was significantly increased at 24 h after cisplatin (5 mg/kg, intraperitoneal) administration...
May 15, 2018: Naunyn-Schmiedeberg's Archives of Pharmacology
Šalandová Jana, Franc Aleš, Hofmann Jiří, Dumicic Aleksandra, Kukačková Lenka, Červená Tereza, Beránek Josef, Srbek Jan, Repický Andrej, Vladovičová Beata, Vetchý David
The purpose of this work was to develop a new supergeneric product Meloxicam/Omeprazole. Such a combination brings a benefit in terms of decreasing side effects for the patients using meloxicam. The new combination is composed of a meloxicam powder blend (MPB) and omeprazole gastro-resistant pellets (OAP) in hard gelatin capsules. The main tasks were to select the excipients to keep the functional layer of OAP active and to prove the bioequivalence to the original products of meloxicam tablets together with omeprazole capsules...
May 11, 2018: International Journal of Pharmaceutics
Javier Benito, Beatriz Monteiro, Francis Beaudry, Paulo Steagall
The aim of this study was to determine the efficacy and pharmacokinetics of bupivacaine in combination with epinephrine or dexmedetomidine after intraperitoneal administration in cats undergoing ovariohysterectomy. Sixteen healthy adult cats (3.3 ± 0.6 kg) were included in a prospective, randomized, masked clinical trial after obtaining owners' consent. Anesthetic protocol included buprenorphine-propofol-isoflurane. Meloxicam [0.2 mg/kg body weight (BW)] was administered subcutaneously before surgery. Cats were randomly divided into 2 groups to receive 1 of 2 treatments...
April 2018: Canadian Journal of Veterinary Research, Revue Canadienne de Recherche Vétérinaire
Luciana F A Romani, Maria I Yoshida, Elionai C L Gomes, Renes R Machado, Felipe F Rodrigues, Márcio M Coelho, Marcelo A Oliveira, Maria B Freitas-Marques, Rosane A S San Gil, Wagner N Mussel
Meloxicam (MLX) is an anti-inflammatory drug susceptible to variations and crystalline transitions. In compounding pharmacies, the complete crystallographic evaluation of the raw material is not a routine procedure. We performed a complete crystallographic characterization of aleatory raw MLX samples from compounding pharmacies. X-ray diffraction indicated the presence of two crystalline forms in one sample. DSC experiments suggested that crystallization, or a crystal transition, occurred differently between samples...
April 2018: Journal of Pharmaceutical Analysis
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