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The anesthetic effect of a combination of medetomidine, midazolam and butorphanol (Me-Mi-Bu) was evaluated in healthy cynomolgus monkeys. The Me-Mi-Bu combination was intramuscularly administered as follows: Dose 1, Me 0.015 mg/kg-Mi 0.1 mg/kg-Bu 0.15 mg/kg; Dose 2, Me 0.02 mg/kg-Mi 0.15 mg/kg-Bu 0.2 mg/kg; and Dose 3, Me 0.04 mg/kg-Mi 0.3 mg/kg-Bu 0.4 mg/kg. The combination rapidly induced immobilization, and lateral recumbency was reached within 15 min. The duration of anesthesia for each dose administered was follows: Dose 1, 47 ± 27 min; Dose 2, 113 ± 31 min; and Dose 3, 190 ± 24 min. The anesthetic effect of the combination was abolished by the α2-adrenoceptor antagonist atipamezole. No marked changes in the levels of hematologic or serum biochemical parameters were noted in cynomolgus monkeys administered the combination plus atipamezole. Taken together, these results suggest that the Me-Mi-Bu combination exhibits reversible anesthetic effect and may be useful for studies involving cynomolgus monkeys.
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http://dx.doi.org/10.1292/jvms.13-0589 | DOI Listing |
Zool Res
September 2025
College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong 510642, China. E-mail:
Zona pellucida glycoprotein-1 (ZP1) is essential for maintaining oocyte structural integrity and facilitating fertilization. Mutations in are strongly associated with primary infertility disorders such as fertilization failure and empty follicle syndrome; however, the absence of accurate experimental models has hindered mechanistic understanding and obscured the etiological basis of -related infertility. In this study, CRISPR/Cas9-mediated genome editing was employed to generate two -edited cynomolgus macaques ( ), designated #ZP1-1 (male) and #ZP1-2 (female).
View Article and Find Full Text PDFMol Cancer Ther
September 2025
Novelty Nobility, Seongnam-si, Korea (South), Republic of.
Overexpression and gain-of-function mutations of c-Kit have been implicated in cancers including gastrointestinal stromal tumors (GIST), small cell lung cancer (SCLC), acute myeloid leukemia, and systematic mastocytosis. In clinics, small molecule c-Kit inhibitors often result in secondary c-Kit mutations or are ineffective despite c-Kit overexpression. We developed NN3201, a novel c-Kit targeting antibody-drug conjugate (ADC), via rational design to evaluate its anticancer activity in c-Kit-positive tumors, and preclinical pharmacologic profiles.
View Article and Find Full Text PDFGenome Biol
September 2025
Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, 53226, USA.
Background: A growing body of evidence from primate embryos as well as in vitro systems supports the notion that amnion and primordial germ cell (PGC) lineage progressing cells share a common precursor.
Results: To gain comprehensive transcriptomic insights into this critical but poorly understood precursor and its progeny, we examine the evolving transcriptome of a developing human pluripotent stem cell-derived model of amnion and PGC formation at the single cell level. This analysis reveals several continuous amniotic fate progressing states with state-specific markers.
Drug Metab Dispos
August 2025
Department of Drug Metabolism and Pharmacokinetics, Genentech, Inc, South San Francisco, California. Electronic address:
Hydrolases in the eye play an important role in the metabolism of ophthalmic drugs, especially those administered locally to the eyes. With the growing interest in peptide-based therapeutics for treating eye disease, it has become increasingly important to characterize the enzymatic activities of ocular tissues against both small molecules and peptides to better understand their ocular metabolism. In this study, we characterized the activities of hydrolases, including carboxylesterase 1 and 2, arylacetamide deacetylase, paraoxonases, cytidine deaminase, fatty-acid amide hydrolase, and peptidases by incubating probe substrates in whole eye homogenates and vitreous humors from human donors and 3 preclinical species, including New Zealand White rabbits, Gottingen minipigs, and Cynomolgus monkeys.
View Article and Find Full Text PDFBioanalysis
August 2025
Drug Metabolism & Pharmacokinetics (DMPK), Boehringer Ingelheim Pharmaceuticals Inc, Ridgefield, CT, USA.
Background: Drug bridging immunoassays are widely employed as the standard approach for detecting anti-drug antibodies (ADAs) in the development of new biological entities. A major challenge in these assays is mitigating target interference, particularly when the soluble target exists in dimeric forms, which can result in false positive signals and compromise assay specificity.
Research Design And Methods: We developed sensitive and robust ADA assays capable of overcoming target interference to detect antibodies against BI X in both cynomolgus monkey (cyno) plasma and human serum matrices.