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Animal Model - DOAJ

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Last Updated: 27 July 2022

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Orthodontic tooth movement with and without corticotomy – A study realized on animal model

Adult patients are more prone to fractured bone regrowth, and there is no evidence that the procedure is slowing down. Corcortiotomy depends on milling the algeolar bone, the vestibular board, in order to produce little jobs in which dental displacement following the use of orthodontic force will be quicker. Adult patients are more difficult because bone regrowth is difficult to do and there is no evidence for the growth process [3]. Despite the numerous health benefits it could bring when it is integrated into orthodontic therapy to correct various dento-maxillary abnormalities, orthodontists, the corticotomy is still treated with some reluctance by orthodontists. The degree of dental displacement caused by the corticotomy and the specific dento-maxillary anomaly that needs to be addressed, as well as the time of orthodontic treatment in which the surgery is carried out [6].

Source link: https://doi.org/10.37897/RJS.2022.1.6


Efficacy of Western, Eastern, and Venezuelan Equine Encephalitis (WEVEE) Virus-Replicon Particle (VRP) Vaccine against WEEV in a Non-Human Primate Animal Model

In cynomolgus macaques, a combined western, eastern, and Venezuelan encephalitis virus-like replicon particle vaccine was found to determine the consequences of the route of administration on the immunogenicity and effectiveness of a single western, eastern, and Venezuelan encephalitis virus-like replicon particle vaccine. Blood was collected 28 days after primary vaccination and 21 days after booster vaccination for analysis of the immune response to the WEVEE VRP vaccine. Following second vaccination with WEEV CBA87, asthmatic 28 or 29 days were tested by aerosol 28 or 29 days. Two doses of WEVEE VRP was immunogenic, resulting in neutralizing antibody responses specific for VEEV, EEEV, and WEEV. However, after infection with WEEV CBA87, one NHP control met euthanasia criteria, but one NHP control met euthanasia guidelines. In control NHPs relative to vaccinated NHPs, statistically significant differences in median fever hours were found in comparison to vaccinated NHPs, providing a quantitative measure of disease and efficacy of the vaccine against a WEEV challenge.

Source link: https://doi.org/10.3390/v14071502


SARS-CoV-2 Doggybone DNA Vaccine Produces Cross-Variant Neutralizing Antibodies and Is Protective in a COVID-19 Animal Model

Nucleic acid vaccines have the benefit of rapid manufacturing because they only need a viral antigen sequence and can easily be modified to detect viral mutations. SARS-CoV-2 DNA vaccines targeting the spike protein of SARS-CoV-2 have been created and tested against a traditionally produced, bacterially derived plasmid DNA vaccine that uses the same spike sequence. Following two vaccinations, Administered to Syrian hamsters by jet injection at two dose levels, the immunogenicity of both DNA vaccines was tested. These results show that a synthetic DNA vaccination strategy to shield hamsters from SARS-CoV-2 infection.

Source link: https://doi.org/10.3390/vaccines10071104


Co-Combination of Pregabalin and Withania coagulans -Extract-Loaded Topical Gel Alleviates Allodynia and Hyperalgesia in the Chronic Sciatic Nerve Constriction Injury for Neuropathic Pain in Animal Model

The current research shows the manufacture of cocombination gel using Pregabalin and Withania coagulans fruit extract to show its effectiveness for neuropathic pain in chronic constriction injury rat models. Both Pregabalin and Withania coagulans extracts were extracted using a pseudo-ternary phase diagram incorporating the Pregabalin, Withania coagulans extract, and co-combination of both Pregabalin and Withania coagulans extracts. FTIR revealed a solid polymeric network of the gel with no contact. The mechanism of drug release by combination gel was HiFi+ fickian with values of n and R 2 on both sides. The pain was reduced by topical treatment with co-combination gel, R1, R3, and R4; an in vivo study for pain assessment via four methods: heat hypere, cold allodynia, mechano-hypergep, and dynamic mechano-allodynia.

Source link: https://doi.org/10.3390/molecules27144433


Novel Animal Model of Spontaneous Cerebral Petechial Hemorrhage Using Focused Ultrasound in Rats

Background and Objectives: Petechial cerebral hemorrhages can be attributed to a variety of conditions, such as traumas, cerebral infarctions, and aging, and can be related to the destruction of the bloodu2013brain barrier or hemoglobal damage of blood vessels. However, there is no animal model that recapitulates cerebral hemorrhages. This method improves the blood permeability of the blood-u2013brain barrier by directly applying mechanical force to the vascular endothelial cells by cavitation of microbubbles. This procedure is histologically close to actual petechial hemorrhages of the brain, and it allows for the development of a clone hemorrhage similar to petechial hemorrhage.

Source link: https://doi.org/10.3390/medicina58070881


The Problem of Wound Healing in Diabetes—From Molecular Pathways to the Design of an Animal Model

Patients with diabetes are a group of patients in whom the healing process is significantly delayed regardless of the origins of the disease. Many drugs that are either topically or systemically are currently used to speed wound repair and wound closure. To achieve this target and minimize the wide-ranging risks associated with doing clinical trials, a good animal model is required to accurately replicate the wound conditions in diabetic patients with diabetes as accurately as possible. The paper's aim is to provide a comprehensive review of diabetic chronic wounds in the context of the design of an animal model of diabetic chronic wounds. According to the 3 Rs model, the researchers focus on research optimization, including economic and model reproducibility, as well as the ethical aspect of minimizing the suffering of research subjects.

Source link: https://doi.org/10.3390/ijms23147930


Effect of Haloperidol and Olanzapine on Hippocampal Cells’ Proliferation in Animal Model of Schizophrenia

In vitro, where we measured cell number and projection length, we investigated the effect of HAL and OLA on an mHippoE-2 cell line. We investigated the gene expression of DCX, Sox2, BDNF, and NeuN in the SVZ and HIP in an MK-801-induced animal schizophrenia model. For 24, 48, and 72 h. animals were incubated with HAL, OLA, and MK-801 for 6, 48, and 72 h. Animals were incubated with HAL, OLA, and MK-801 for 24, 48, and 72 h, and the MK-801 was incubated for 6 days, beginning on the 7th day with either vehicle HAL or OLA for 24, 48, and 72 h. DCX and NeuN genes are suppressed in the HIP and SVZ, and OLA in vivo, HAL, and OLA. DCX and NeuN expression can be reduced by subchronic HAL/OLA therapy, according to the study. OLA reversed the MK-801 inhibitory effect on DCX, NeuN, and HAL's HAL reversed the effect on DCX expression, but only in the HIP; not in the HIP.

Source link: https://doi.org/10.3390/ijms23147711


Tracking Prostate Carcinogenesis over Time through Urine Proteome Profiling in an Animal Model: An Exploratory Approach

Urine from healthy animals and horses with prostate adenocarcinoma was tested at two time points: 27 and 54 weeks, to this end. The prevalence of pre-neoplastic and neoplastic lesions in the PCa animals had remained 100% after 54 weeks. The present exploratory findings may serve as a jumping point for research into specific human urine proteins for early detection of age-related maladaptive changes in the prostate that may lead to cancer.

Source link: https://doi.org/10.3390/ijms23147560


Goats as Valuable Animal Model to Test the Targeted Glutamate Supplementation upon Antral Follicle Number, Ovulation Rate, and LH-Pulsatility

Considering the anestrous yearling goat as an animal model, the potential consequences of intravenous injection of glutamate on the ovarian function and the LH mystery pattern have been investigated. The Munro algorithm was used to quantify LH-PULSE, and longitudinally correlated treatment x time interactions were determined throughout time. Nevertheless, OR, TOA and LH-PULSE preferred to the GLUT group, with TOA and LH-PULSE favored to the GLUT group. Our findings reveal that targeted glutamate supplementation, the key nervous system neurotransmitter, arose as an effective way to raise the hypothalamic response considering the anestrous-yearling goat as an animal model, prompting thought-provoking as well as promising translational applications.

Source link: https://doi.org/10.3390/biology11071015


Comprehensive and systematic characterization of multi-functionalized cisplatin nano-conjugate: from the chemistry and proteomic biocompatibility to the animal model

Iron oxide nanoparticles contain the bulk of the required attributes that make them suitable for multifunctional NPs used in many biopharmaceutical applications, which make them suitable for multifunctional NPs. The determination of protein corona in various proximal fluids has been investigated in vitro biocompatibility by proteomics characterization. In addition, protein labeling and LC-u2013MS/MS analysis of more than 4000 proteins de novo synthetized as a result of the nanodrugs' presence in various tumor cell types. Conclusions: Different species' behavior is observed among species and different affinity of protein coating layers, according to a pharmacological proteomic report. In addition, intracellular signaling revealed differences between tumor cell lines tested. The ability of theses NPs as drug delivery systems and cisplatin compounds as enhanced antitumoral agents is shown by first attempts in an animal model.

Source link: https://doi.org/10.1186/s12951-022-01546-y

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions