8,728 results match your criteria: "Camel & Range Research Center[Affiliation]"

We examined the electric double-layer (EDL) of a Au(111) electrode in a dilute perchloric acid solution using a combination of capacitance measurements and scanning tunnelling microscopy under electrochemical conditions (ECSTM). The "camel-shaped" capacitance curve of the EDL is studied with different cations and anions, including their impact on the potential of zero charge (PZC). We show that the ECSTM images of thermally reconstructed and of the potential-induced surface reconstruction of Au(111) in perchloric acid electrolyte resemble previous work in sulphuric acid, displaying a herringbone pattern for a thermally reconstructed surface.

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Background Coronaviruses (CoVs) pose significant health risks to humans, with recent outbreaks like severe acute respiratory syndrome coronavirus (SARS-CoV), Middle East respiratory syndrome coronavirus (MERS-CoV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) underscoring their zoonotic potential. Dromedary camels () have been implicated as intermediate hosts for MERS-CoV, prompting heightened surveillance efforts. This study aims to identify non-MERS-CoV CoVs in imported camels at the Jeddah seaport, Saudi Arabia, using molecular techniques.

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The reproductive efficiency of dromedary camels is hindered by challenges such as early embryonic mortality, which may be attributed to a lack of synchronization between conceptus signalling and uterine receptivity. Understanding the intricate biological processes involved in feto-maternal interactions during implantation is crucial to address these limitations. Osteopontin (OPN) is a protein involved in cell signalling and adhesion, playing a crucial role in embryonic implantation.

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Review on camel genetic diversity: ecological and economic perspectives.

Mamm Genome

December 2024

ICAR-National Bureau of Animal Genetic Resources, Karnal, India.

Camels, known as the "Ship of the Desert," play a vital role in the ecosystems and economies of arid and semi-arid regions. They provide meat, milk, transportation, and other essential services, and their resilience to harsh environments makes them invaluable. Despite their similarities, camel breeds exhibit notable differences in size, color, and structure, with over 40 million camels worldwide.

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Objective: Both camrelizumab plus paclitaxel and carboplatin (CTC) and sintilimab plus gemcitabine and cisplatin or carboplatin (SGP) have been approved by the National Medical Products Administration of China (NMPA) for the first-line treatment of local advanced or metastatic sqNSCLC. However, the comparison of the two treatments as first-line treatments in efficacy or pharmacoeconomics has barely been studied. To deeply understand the costs and outcomes of the two treatments, this work directly compared the cost-effectiveness for the first-line treatment of local advanced or metastatic squamous NSCLC in the Chinese mainland.

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Development and characterization of wax-bovine bone protein-grapeseed oil composite oleogels: Experimental and molecular simulation studies.

Food Chem

December 2024

School of Food Science and Technology, Shihezi University, Xinjiang Uygur Autonomous Region, China; Key Laboratory of Agricultural Product Processing and Quality Control of Specialty (Co-construction by Ministry and Province), School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832000, China. Electronic address:

Three new types of composite oleogel formulations were designed. Specifically, oleogels were prepared using 90% grapeseed oil as the oil phase and carnauba wax (CW)/beeswax/rice bran wax-bovine bone protein (BBP) as gelators. All samples were solid and had an oil-binding capacity of >90%.

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Tamdy Virus (TAMV) is a pathogenic nairovirus widely distributed in central Asia and northwestern China. However, the host range of TAMV remains unclear, which limits our understanding the transmission cycle and cross-species patterns of this virus. A total of 160 serum samples were collected from livestock animals of camels, cattle, and sheep in Xinjiang, China between 2018 and 2021.

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Article Synopsis
  • Type III interferon (IFN-λ) is an antiviral protein, with evolutionary analysis revealing diverse gene sequences and receptor variations across 42 tetrapod species.
  • Through qPCR, a study determined copy number variations (CNV) of IFN-λ in Indian cattle and buffalo, highlighting the presence of multiple IFN-λ genes in placental mammals and amphibians.
  • The research underscores the evolutionary significance of IFN-λ, showing its functional conservation and variability despite the presence of type I interferons.
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Large-Scale Molecular Epidemiological Survey of sp. among Herbivores in Egypt and Assessment of Potential Zoonotic Risk.

Microorganisms

June 2024

CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Centre d'Infection et d'Immunité de Lille, University of Lille, F-59000 Lille, France.

Given the proven zoonotic potential of the intestinal protozoan sp., a fast-growing number of surveys are being conducted to identify potential animal reservoirs for transmission of the parasite. Nevertheless, few epidemiological studies have been conducted on farmed animals in Egypt.

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Whole-Genome Resequencing Analysis of the (Bactrian Camel) Genome Identifies Mutations and Genes Affecting Milk Production Traits.

Int J Mol Sci

July 2024

Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi 830017, China.

Milk production is an important trait that influences the economic value of camels. However, the genetic regulatory mechanisms underlying milk production in camels have not yet been elucidated. We aimed to identify candidate molecular markers that affect camel milk production.

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During estrus, the poll glands of male Bactrian Camels () become slightly raised, exuding a large amount of pale yellow watery secretion with a characteristic odor that may contain hydrogen sulfide (HS). However, whether HS can be synthesized in the poll glands of male Bactrian Camels and its role in inducing camel estrus remains unclear. This study aimed to identify differentially expressed proteins (DEPs) and signaling pathways in the poll gland tissues of male Bactrian Camels using data independent acquisition (DIA) proteomics.

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Surra-affected dromedary camels show reduced numbers of blood B-cells and in vitro evidence of Trypanosoma-induced B cell death.

Trop Anim Health Prod

July 2024

ANSES, Laboratory for Animal Health, Normandy site, Physiopathology and Epidemiology of Equine Diseases (PhEED) Unit, ANSES, 1080 L'Église, 14430, Goustranville, France.

Article Synopsis
  • Trypanosomosis caused by Trypanosoma evansi (surra) significantly affects camel health and production, prompting an investigation into its immunological impact on blood leukocytes.
  • The study compared leukocyte populations and lymphocyte subsets between healthy camels and those with chronic surra, revealing a higher leukocyte count and reduced B cells in diseased camels.
  • In vitro tests showed that T. evansi has a strong affinity for camel B cells, leading to their death through apoptosis and necrosis, highlighting the disease's immunosuppressive effects.
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  • Trypanosomiasis causes tissue damage and triggers an immune response in camels, which can lead to metabolic and oxidative stress issues.
  • The study analyzed blood samples from 54 camels to compare immunological, antioxidant, and metabolic changes between healthy and infected groups, finding significant gene expression differences.
  • Results indicated specific up-regulation and down-regulation of genes related to immunity, metabolism, and antioxidants, along with changes in serum profiles that could help in managing trypanosomiasis in dromedary camels.
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Middle East respiratory syndrome coronavirus (MERS-CoV) first emerged in 2012 and causes human infections in endemic regions. Vaccines and therapeutics in development against MERS-CoV focus on the spike (S) glycoprotein to prevent viral entry into target cells. These efforts are limited by a poor understanding of antibody responses elicited by infection.

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Background: There are 26 species of ticks known to exist in Libya. Despite the presence of a number of investigations on ticks in Libya, there are no published studies on ticks in the Al-Qarboulli area.

Aim: The aim of this study was to identify the tick species infesting farm animals in the Qarabulli region.

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Heterocyclic amines (HAs) are a group of mutagenic and carcinogenic compounds produced from the processing of high-protein foods, which include 2-amino-3-methylimidazo[4, 5-f]quinoline (IQ) showing the strongest carcinogenic effect. Camels are able to digest HAs in foods, which provide rich microbial resources for the study. Thus, camel rumen and intestinal microbiota were used to degrade IQ, and the dominant microorganisms and their degradation characteristics were investigated.

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Background: Although dromedary camels (Camelus dromedarius) are known to be the host reservoir for MERS-CoV, the virus causing Middle East respiratory syndrome (MERS), zoonotic transmission pathways and camel subpopulations posing highest transmission risk are poorly understood. Extensively managed herds, ubiquitous across the Arabian Peninsula, present a major potential source of primary infection. In this study we aimed to address key knowledge gaps regarding MERS epidemiology among high-risk communities associated with such herds, which is essential information for effective control strategies.

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Article Synopsis
  • Knowledge of genetic variability in dromedaries can aid in selective breeding and understanding their domestication history.
  • A study analyzed an 809 bp segment of mtDNA from various dromedary breeds in Saudi Arabia, identifying 16 mtDNA haplotypes among 47 camels, with a high haplotypic diversity of 0.817.
  • The findings suggest that many haplotypes are closely related to ancient wild dromedaries, supporting the idea that the Arabian Peninsula is a key region for the diversification of dromedaries.
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Article Synopsis
  • Tick-borne diseases are on the rise globally, but there's limited research on their impact on dogs in southern Egypt.
  • A study detected Anaplasma marginale and Babesia canis vogeli in dog blood, finding a 4% infection rate, with a higher occurrence in male dogs (75%) compared to females (25%).
  • This research is the first to report the presence of A. marginale in dogs in southern Egypt, using genetic analysis to compare it with isolates from other animals in the region.
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Genome sequencing projects reveal new insights into the mammalian Gonadotropin-releasing Hormone II system.

J Neuroendocrinol

October 2024

Department of Immunology, Centre for Neuroendocrinology, University of Pretoria, Pretoria, South Africa.

Article Synopsis
  • The type II gonadotropin-releasing hormone (GnRH-II) is a conserved neuropeptide found across vertebrates, first identified in chickens, hinting at its important role in evolution.
  • While present in some species such as marmosets, pigs, and musk shrews, many mammals show mutations in genes related to GnRH-II, suggesting varied functional capabilities among species.
  • A study spanning 21 taxonomic orders and 140 species reveals that while the GnRH-II system is functional in some families, inactivating mutations exist in many others, indicating selective preservation of this system among mammals.
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Article Synopsis
  • The camel has been crucial to human civilization for agriculture and customs, leading to a study on parasites affecting them in Iraq's Al-Diwaniyah and Al-Najaf provinces from December 2021 to September 2022.
  • A total of 200 fecal samples from farm camels showed significant internal parasitic infestations, with the most common appearing in 56% of the samples, followed by several others at lower rates.
  • Using nested PCR, 45.4% of camels tested positive for one specific parasite, indicating a high prevalence of parasitic infections among the camel population studied.
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Next-Generation Sequencing and Proteomics-Enabled Approach for Rapid and High-Throughput Isolation of Virus-Neutralizing Nanobodies.

Methods Mol Biol

July 2024

State Key Laboratory of Pharmaceutical Biotechnology, Medical School, Nanjing University, Nanjing, China.

Compared with traditional antibodies, nanobodies from camelids have various advantages, including small molecular weight, high affinity, low immunogenicity, convenient production through genetic engineering, etc. Here we combined next-generation sequencing (NGS) with proteomics technology based on affinity purification-mass spectrometry (AP-MS) and bioinformatics analysis to high-throughput screen monoclonal nanobodies from camels immunized with surface glycoprotein (glycoprotein N, Gn) of severe fever with thrombocytopenia syndrome virus and fulfilled production of the screened anti-Gn monoclonal nanobody with high affinity by genetic engineering. The innovative high-throughput technical route developed here could also be expanded to the production of neutralizing nanobodies specific for Rift Valley fever virus.

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Trypanosoma evansi infection has started to become a wide spread phenomena around the camel-rearing areas of North Africa and the Middle East. The disease caused by trypanosomes is locally known as "Surra" and it can seriously impact not only the health of domestic animals but the local economy as well. After taking over the management of a farm containing approximately 700 camels, it was found that a large number were suffering from trypanosome infection and it was of the utmost importance to find the source of this infection.

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The ostrich () is an important wild species highlighted in national and international livestock industry. This research was conducted to analyze the development of the ostrich respiratory system during fetal and embryonic stages. A total of 50 fertile ostrich eggs were collected from commercial farms and then incubated at 36.

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is one of the most common causes of mastitis worldwide. This study aimed to determine the prevalence and antimicrobial resistance (AMR) patterns of in mastitic milk samples collected from camel farms in Matrouh Governorate, Egypt. A total of 200 mastitic camel milk samples were evaluated for using both conventional culture-based and molecular-based methods.

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