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Chronic Cough and Hyperpnea: Clinical Approach to Equine Asthma.
The Veterinary clinics of North America. Equine practice    January 13, 2025   S0749-0739(24)00086-5 doi: 10.1016/j.cveq.2024.09.001
Morales CJ, Costa LRR.Exercise intolerance, chronic cough, and hyperpnea are the clinical hallmarks of equine asthma. Diagnosis of severe equine asthma in horses is multistep; determination of the phenotype will help guide future recommendations. Management of equine asthma is largely reduction/elimination of triggering agents/conditions. Immunosuppressive therapies and bronchodilators are the mainstay of treatment of equine asthma. Rescue therapy with short-acting bronchodilators is the first goal when managing a horse with hyperpnea. The second goal is to control/reduce inflammation and airway remodeling. Immunos...
Influence of Saccharomyces cerevisiae CNCM I-1077 on the fecal pH, markers of gut permeability, fecal microbiota, and markers of systemic inflammation in sedentary horses fed a high-starch diet.
Journal of animal science    January 13, 2025   skaf005 doi: 10.1093/jas/skaf005
Carter MM, Leatherwood JL, Paris BL, Moore GE, George JM, Martinez RE, Karges K, Cox JR, Arnold CE, Glass KG, Bradbery AN, Rodiles A, Wickersham TA.Thirty mature Quarter Horse geldings were used in a completely randomized 32-d study to test the hypotheses that supplemental live Saccharomyces cerevisiae CNCM I-1077 improves apparent digestion, stabilizes the fecal pH, reduces gut permeability, maintains microbial communities, and decreases inflammation in horses fed a high-starch diet. Horses were stratified by body weight, age, and body condition score (BCS) to one of two treatments: concentrate formulated with 2g starch • kg BW-1 • meal-1 (CON; n=15) or the same concentrate top-dressed with 25g/d Saccharomyces cerevisiae CNCM I-1077 ...
Description and Analysis of Horse Swimming Strategies in a U-Shaped Pool.
Animals : an open access journal from MDPI    January 13, 2025   Volume 15, Issue 2 195 doi: 10.3390/ani15020195
Gaulmin P, Marin F, Moiroud C, Beaumont A, Jacquet S, De Azevedo E, Martin P, Audigié F, Chateau H, Giraudet C.Aquatic training has been integrated into equine rehabilitation and training programs for several decades. While the cardiovascular effects of this training have been explored in previous studies, limited research exists on the locomotor patterns exhibited during the swimming cycle. This study aimed to analyze three distinct swimming strategies, identified by veterinarians, based on the propulsion phases of each limb: (S1) two-beat cycle with lateral overlap, (S2) two-beat cycle with diagonal overlap, and (S3) four-beat cycle. 125 underwater videos from eleven horses accustomed to swimming wer...
De-extinction beyond species: Restoring ecosystem functionality through large herbivore rewilding.
Cambridge prisms. Extinction    January 13, 2025   Volume 3 e3 doi: 10.1017/ext.2024.27
Jepson PR.This perspective positions rewilding as a novel approach to ecosystem restoration, emphasising the restoration of natural processes to create self-willed ecosystems. Central to European rewilding is the de-domestication of cattle and horses to act as functional analogues of the extinct aurochs and wild horses. This de-extinction pathway shifts the focus from the loss of species to the loss of their ecological roles caused by human actions commencing millennia ago. The focus on restoring functional effects provides a strong policy rationale for large herbivore de-domestication, aligning with na...
Remediating Cambridge: Human and Horse Co-Relationality in a Culture of Mis-Re-Presentation.
Animals : an open access journal from MDPI    January 13, 2025   Volume 15, Issue 2 194 doi: 10.3390/ani15020194
Brady FA, McDonell J.This case study aims to problematise concepts of equine and human co-relational agency in the context of 'mis-re-presentations' in the Australian media of harms experienced by the Anglo Arab stallion, Cambridge, following his development of laminitis and his consequent confinement at a leading national Equestrian centre. Autoethnographic narrative is used to retrospectively and selectively narrate the evolving relationship between Cambridge and his owners, farrier, and treating veterinarians within the dominant housing and veterinary practices and welfare paradigms in equestrian culture of 199...
A Meta-Analysis on Quantitative Sodium, Potassium and Chloride Metabolism in Horses and Ponies.
Animals : an open access journal from MDPI    January 13, 2025   Volume 15, Issue 2 191 doi: 10.3390/ani15020191
Maier I, Kienzle E.The goal of this meta-analysis was to (i) identify any potential differences in the apparent and true digestibility, renal excretion, and retention between ponies and horses and (ii) examine the impact of work on these parameters. Additionally, the study aimed to (iii) evaluate the effects of water deficiency. This meta-analysis used data from 33 studies and plotted them in diagrams similar to the Lucas test against mineral intake. Three studies involved ponies that were later diagnosed with pituitary pars intermedia dysfunction (PPID). These were compared with other data to identify quantitat...
Real-Time Reverse Transcription Multienzyme Isothermal Rapid Amplification for Rapid Detection of African Horse Sickness Virus.
Transboundary and emerging diseases    January 13, 2025   Volume 2025 1852368 doi: 10.1155/tbed/1852368
Huang C, Wang J, Ruan Z, Wu J, Lin Y, Cao C, Yang J, Weng Q, Jin Y, Chen P, Hua Q.African horse sickness (AHS) is an acute infectious disease of equids caused by the AHS virus (AHSV), which can cause up to 90% mortality in naive horses. Reliable and rapid diagnosis is crucial for the surveillance and control of AHSV. As one of the AHSV detection methods recommended by World Organization for Animal Health (WOAH), the RT-qPCR assay has the drawbacks such as complex operation, expensive instruments, and long detecting time, which limit its application in simple laboratories or outdoors. In this study, a real-time reverse transcription multienzyme isothermal rapid amplification...
Identification of a global gene expression signature associated with the genetic risk of catastrophic fracture in iPSC-derived osteoblasts from Thoroughbred horses.
Animal genetics    January 13, 2025   Volume 56, Issue 1 e13504 doi: 10.1111/age.13504
Palomino Lago E, Ross AKC, McClellan A, Guest DJ.Bone fractures are a significant problem in Thoroughbred racehorses. The risk of fracture is influenced by both genetic and environmental factors. To determine the biological processes that are affected in genetically susceptible horses, we utilised polygenic risk scoring to establish induced pluripotent stem cells (iPSCs) from horses at high and low genetic risk. RNA-sequencing on iPSC-derived osteoblasts revealed 112 genes that were significantly differentially expressed. Forty-three of these genes have known roles in bone, 27 are not yet annotated in the equine genome and 42 currently have ...
Genomic analysis and replication kinetics of the closely related EHV-1 neuropathogenic 21P40 and abortigenic 97P70 strains.
Veterinary research    January 13, 2025   Volume 56, Issue 1 12 doi: 10.1186/s13567-024-01434-3
Mohamed E, Zarak I, Vereecke N, Theuns S, Laval K, Nauwynck H.Varicellovirus equidalpha 1, formerly known as Equid alphaherpesvirus 1 (EHV-1), is highly prevalent and can lead to various problems, such as respiratory problems, abortion, neonatal foal death, and neurological disorders. The latter is known as equine herpes myeloencephalopathy (EHM). Cases of EHM have significantly increased since the beginning of the twenty-first century. The genomic sequences of five isolates associated with the fatal neurological outbreak in Valencia, Spain, in 2021 were analyzed and documented. The genome and replication kinetics of the Belgian EHM isolate 21P40, associ...
The Role of European Equestrian Institutions in Training Professionals: Outcomes from a Workshop on Horse Welfare in Equestrian Education.
Animals : an open access journal from MDPI    January 11, 2025   Volume 15, Issue 2 183 doi: 10.3390/ani15020183
Torell Palmquist G, Känsälä Alveheim N, Huot-Marchand F, Ashton L, Lewis V.This paper highlights and summarizes the experiences and perceptions of European equestrian educational experts from a workshop held at the French National Riding School in Saumur. The workshop, which brought together fifty leading experts, aimed to address challenges in equestrian education, identify common ground, and share best practices. Using 'The World Café' method, the participants were divided into groups to discuss four key topics: the relationship between horses and humans, diversity of perspectives versus common ground, training philosophy, and social acceptability. A follow-up onl...
Detection of equine influenza virus gene in the air around infected horses.
Veterinary microbiology    January 11, 2025   Volume 302 110388 doi: 10.1016/j.vetmic.2025.110388
Nemoto M, Kawanishi N, Kambayashi Y, Bannai H, Yamanaka T, Tsujimura K.Equine influenza virus (EIV) can be transmitted by inhalation of aerosolized droplets, direct contact, and contaminated fomites. However, to our knowledge, there are no reports of the recovery of EIV from the air surrounding infected horses. Here, we evaluated whether EIV can be recovered from the air in the stalls of experimentally infected horses by using an air sampler. Furthermore, we examined whether rapid molecular test kits with reaction times of less than 30 min can detect EIV from air samples for potential field application. Two horses kept in individual stalls were experimentally i...
A genome-wide association study for recurrent laryngeal neuropathy in the Thoroughbred horse identifies a candidate gene that regulates myelin structure.
Equine veterinary journal    January 10, 2025   doi: 10.1111/evj.14461
McGivney CL, McGivney BA, Farries G, Gough KF, Han H, Holtby AR, MacHugh DE, Katz LM, Hill EW.Equine recurrent laryngeal neuropathy (RLN) is an economically important upper respiratory tract (URT) disease with a genetic contribution to risk, but genetic variants independent of height have not been identified for Thoroughbreds. The method of clinical assessment for RLN is critical to accurately phenotype groups for genetic studies. Objective: To identify genetic risk loci for RLN in Thoroughbreds in a genome-wide association study (GWAS) following high-resolution phenotyping. Methods: Case-control. Methods: Thoroughbred horses were characterised as RLN cases and controls using resting a...
Genome wide landscaping of copy number variations for horse inter-breed variability.
Animal biotechnology    January 10, 2025   Volume 36, Issue 1 2446251 doi: 10.1080/10495398.2024.2446251
Sharma NK, Singh P, Saha B, Bhardwaj A, Iquebal MA, Pal Y, Nayan V, Jaiswal S, Giri SK, Legha RA, Bhattacharya TK, Kumar D, Rai A.Copy number variations (CNVs) have become widely acknowledged as a significant source of genomic variability and phenotypic variance. To understand the genetic variants in horses, CNVs from six Indian horse breeds, namely, Manipuri, Zanskari, Bhutia, Spiti, Kathiawari and Marwari were discovered using Axiom™ Equine Genotyping Array. These breeds differed in agro-climatic adaptation with distinct phenotypic characters. A total of 2668 autosomal CNVs and 381 CNV regions (CNVRs) were identified with PennCNV tool. DeepCNV was employed to re-validate to get 883 autosomal CNVs, of which 9.06% were...
Factors influencing equine veterinarians’ job satisfaction and retention: A focus group study.
Equine veterinary journal    January 10, 2025   Volume 57, Issue 6 1563-1571 doi: 10.1111/evj.14467
Whitaker K, Burnette A, Tan JY, Graves M, Hunt J, Devine E, Anderson S, Kirkendall K, Wisnieski L.There is a shortage of equine veterinarians. Understanding what factors are associated with job satisfaction in equine veterinarians can inform interventions to increase retention in equine medicine. Objective: To explore the prominent factors causing work dissatisfaction and burnout in equine veterinarians. Methods: Qualitative research study consisting of semi-structured focus groups. Methods: Thirty-seven current and former equine veterinarians across the United States were recruited via snowball and convenience sampling to answer questions on work history, work-life balance, and perception...
A peptide mimic of SOCS1 modulates equine peripheral immune cells in vitro and ocular effector functions in vivo: implications for recurrent uveitis.
Frontiers in immunology    January 10, 2025   Volume 15 1513157 doi: 10.3389/fimmu.2024.1513157
Stafford LS, Plummer CE, Smith WC, Gibson DJ, Sharma J, Vicuna V, Diakite S, Larkin J.Recurrent uveitis (RU), an autoimmune disease, is a leading cause of ocular detriment in humans and horses. Equine and human RU share many similarities including spontaneous disease and aberrant cytokine signaling. Reduced levels of SOCS1, a critical regulator of cytokine signaling, is associated with several autoimmune diseases. Topical administration of SOCS1-KIR, a peptide mimic of SOCS1, was previously correlated to reduced ocular pathologies within ERU patients. Unassigned: To further assess the translational potential of a SOCS1 mimetic to treat RU, we assessed peptide-mediated modulatio...
3′-deoxytubercidin: A potent therapeutic candidate for the treatment of Surra and Dourine.
International journal for parasitology. Drugs and drug resistance    January 10, 2025   Volume 27 100580 doi: 10.1016/j.ijpddr.2025.100580
Ilbeigi K, Mabille D, Roy R, Bundschuh M, Van de Velde E, Hulpia F, Van Calenbergh S, Caljon G.Surra and Dourine are widespread diseases caused by two protozoan parasites Trypanosoma brucei evansi and Trypanosoma brucei equiperdum, respectively. A wide range of animals including camels, horses, cattle and buffaloes are susceptible to infection. These diseases pose a significant socio-economic burden, primarily due to the limited therapeutic options and the complications associated with toxicity and drug resistance, making disease management particularly challenging. This study evaluated the potential of 3'-deoxytubercidin, a previously identified antitrypanosomal nucleoside, as a therap...
Emerging biofilm formation and disinfectant susceptibility of ESBL-producing Klebsiella pneumoniae.
Scientific reports    January 10, 2025   Volume 15, Issue 1 1599 doi: 10.1038/s41598-024-84149-x
Khalefa HS, Arafa AA, Hamza D, El-Razik KAA, Ahmed Z.Klebsiella pneumoniae is an opportunistic pathogen responsible for various infections in humans and animals. It is known for its resistance to multiple antibiotics, particularly through the production of Extended-Spectrum Beta-Lactamases (ESBLs), and its ability to form biofilms that further complicate treatment. This study aimed to isolate and identify K. pneumoniae from animal and environmental samples and assess commercial disinfectants' effectiveness against K. pneumoniae isolates exhibiting ESBL-mediated resistance and biofilm-forming ability in poultry and equine farms in Giza Governorat...
Sperm vitrification in horses and donkeys.
Journal of equine veterinary science    January 9, 2025   Volume 145 105340 doi: 10.1016/j.jevs.2024.105340
Hidalgo M.Sperm vitrification is an alternative freezing method, which includes high cooling rates and non-permeable cryoprotectants agents. The first attempt in equids was using the spheres technique by directly dropping small volumes of the sperm into liquid nitrogen. Later, vitrification was developed using 0.25 mL straws with outer covers, which resulted in similar progressive motility when compared to conventional freezing in donkeys (44.3 ± 15.0 % vs. 44.7 ± 18.2 %) or even higher in horses (48.2 ± 2.3 % vs. 37.3 ± 2.2 %). Subsequently, the vitrification of larger volumes of sperm in 0.5 mL st...
Increased plasma nucleosomes are associated with severe sepsis in foals.
Veterinary journal (London, England : 1997)    January 9, 2025   Volume 309 106297 doi: 10.1016/j.tvjl.2025.106297
Birckhead EM, Raidal SL, Das S, Raidal SR.Sepsis is a main cause of death in neonatal foals. While the syndrome is not completely understood, sepsis is a dysregulated inflammatory response of the host to infection. It can be difficult to diagnose because of varying and non-specific clinical signs and imperfect diagnostic tests. Increased circulating nucleosome levels have been detected in humans and animals with sepsis, but this has not been documented in foals. Nucleosomes are released extracellularly during neutrophil extracellular trap formation, as well as from damaged and dead cells. We analysed plasma samples from clinically hea...
Bronchial vessel density is correlated with airway smooth muscle cell proliferation in horses with mild and moderate asthma.
American journal of veterinary research    January 9, 2025   1-6 doi: 10.2460/ajvr.24.10.0318
Millares-Ramirez EM, Dupuis-Dowd F, Mainguy-Seers S, Lavoie JP.In severe equine asthma, structural remodeling of the airways ultimately leads to bronchial wall thickening and airflow obstruction. Increased bronchial vascularization has been described in horses affected by the severe form of the disease, but whether it contributes to bronchial remodeling in milder forms of asthma remains to be determined. In a blinded, retrospective case-control study, we evaluated the presence of bronchial angiogenesis in horses with mild and moderate equine asthma (MEA) and its correlation to airway smooth muscle remodeling. Methods: Endobronchial biopsies from the Equin...
Chronic oral dosing of cannabidiol and cannabidiolic acid full-spectrum hemp oil extracts has no adverse effects in horses: a pharmacokinetic and safety study.
American journal of veterinary research    January 9, 2025   1-10 doi: 10.2460/ajvr.24.08.0235
Wang TC, Wakshlag JJ, Jager MC, Schwark WS, Trottier NL, Chevalier JM, Pearson G, Cercone M.To compare the pharmacokinetics of cannabidiol (CBD) and cannabidiolic acid (CBDA) in horses and to evaluate the safety of their chronic administration. Methods: CBD- and CBDA-rich oil (1 mg/kg) were administered orally twice daily to 7 adult horses over 6 weeks in a randomized, crossover design with a 2-week washout period. A 12-hour pharmacokinetic analysis was conducted on day 1 of each 6-week trial, followed by the measurement of peak and trough concentrations at weeks 1, 2, 4, and 6. The cannabinoids safety was assessed via daily physical examination, periodic bloodwork, and liver biopsy ...
Serum 25(OH) Vitamin D Concentrations in Horses: Effects of Age, Gender, Breed, Skin Colour and Season.
Veterinary medicine and science    January 9, 2025   Volume 11, Issue 1 e70092 doi: 10.1002/vms3.70092
Alemi M, Ahmadi Sheikhsarmast S, Mohri M.The optimal amount of vitamin D required for the proper functioning of the immune system differs from the amount necessary for bone homeostasis. Furthermore, vitamin D metabolism varies among horses. Nevertheless, there is a dearth of information regarding reference values for vitamin D in horses, particularly in the Turkmen breed. The primary objectives of this study were to determine the concentrations of 25-hydroxyvitamin D (25(OH)Vit D) in Turkmen, Thoroughbred and mixed Turkmen × Thoroughbred horses and to explore the effects of various factors on it and its relationship with serum bio...
Evaluation of equine perineural anesthesia simulators with integrated success control for veterinary education.
Frontiers in veterinary science    January 9, 2025   Volume 11 1403794 doi: 10.3389/fvets.2024.1403794
Chodzinski A, Wissing S, Tipold A, Geburek F.The skills necessary to perform diagnostic perineural anesthesia in equids belongs to one of the Day One Competences of a veterinarian, so every veterinary graduate should be able to perform them correctly. For logistical, hygienic and ethical reasons, practical exercises on cadaver limbs are not accessible to all students. Two equine distal limb simulators were developed and evaluated as an additional instructional tool to train the required skills. Both simulators were designed and built with an integrated success control, with Simulator I (S1) designed to be a simplified anatomical model an...
Comparison of clinical variables and outcome of 2 natural equine herpesvirus myeloencephalopathy outbreaks induced by equine herpesvirus-1 A2254/N752 strain in sport horses.
Journal of veterinary internal medicine    January 9, 2025   Volume 39, Issue 1 e17287 doi: 10.1111/jvim.17287
de la Cuesta-Torrado M, Velloso Alvarez A, Cárdenas-Rebollo JM, Neira-Egea P, Vitale V, Cuervo-Arango J.Understanding of equine herpesvirus-1 (EHV-1) myeloencephalopathy (EHM) is complicated by disparities among studies. Objective: Compare clinical findings and outcome in horses involved in 2 recent EHM outbreaks. Methods: Twenty-five and 10 horses affected during 2 natural EHM outbreaks were admitted to a veterinary teaching hospital (VTH) in 2021 and 2023, respectively. Methods: Data collected from the VTH and surveys completed by riders and horse owners were analyzed retrospectively. Results: No risk factors associated with EHM development showed significant differences between the outbreaks;...
Changes in pressure distribution of the solar surface after a single trimming event are associated with external hoof measurements in the equine fore foot.
Equine veterinary journal    January 9, 2025   doi: 10.1111/evj.14463
Seery S, Gardiner J, Bates KT, Pinchbeck G, Clegg P, Ireland JL, Milner PI.Trimming is critical for a functioning equine hoof. Pressure distribution provides information on loading; however, information on the effects of trimming on pressure distribution is lacking. Objective: To describe the pressure changes of equine fore feet following trimming. Methods: Cross-sectional cohort study. Methods: Fifty sound horses were recruited. Eighteen external hoof measures of the dorsal, lateral, medial and solar aspects were obtained before and after trimming from 94 fore feet. Horses were walked over a pressure mat before and after trimming and pressure maps of the solar surfa...
Heart rate and salivary cortisol as indicators of arousal and synchrony in clients, therapy horses and therapist in equine-assisted therapy.
Complementary therapies in clinical practice    January 9, 2025   Volume 59 101937 doi: 10.1016/j.ctcp.2025.101937
Naber A, Kreuzer L, Zink R, Millesi E, Palme R, Hediger K, Glenk LM.This exploratory study aimed to analyse physiological interaction processes in equine-assisted-therapy (EAT) between client, therapy horse and therapist. Methods: We measured heart rate (HR), heart rate variability (HRV) and cortisol levels before, during and after a standardized therapy session and a control condition in one therapist, four therapy horses and ten female clients in emerging adulthood (Mn = 21.8 years, SD = 3.39). The clients were diagnosed with mild (N = 5) to moderate (N = 5) intellectual disability (ID). Results: There was no significant change in the client's HR, HR...
Effectiveness of acupuncture for equine laminitis: Systematic review and meta-analysis.
Veterinary world    January 9, 2025   Volume 18, Issue 1 60-66 doi: 10.14202/vetworld.2025.60-66
Fikri F, Purnomo A, Maslamama ST, Purnama MTE.In the past 20 years, acupuncture has been utilized as an alternative therapy for equine laminitis despite a lack of clinical evidence to support its effectiveness. Information from previous studies needs to be evaluated holistically to verify the effectiveness of acupuncture. This meta-analysis aimed to comprehensively investigate the effectiveness of acupuncture as a treatment for laminitis in horses. Unassigned: A total of 7 studies out of 145 were selected in the PubMed, Scopus, Cochrane Library, and ProQuest databases using the keywords "equine laminitis," "acupuncture," "horses," and "la...
Inflammation and response to bacterial infection as potential drivers of equine odontoclastic tooth resorption and hypercementosis: A proteomics insight.
Equine veterinary journal    January 8, 2025   doi: 10.1111/evj.14469
Jensen A, Clarke EJ, Nugent Z, Paice E, Gringel I, Yamamoto K, Rocchigiani G, Peffers AJ, Cooper L, Peffers MJ.Equine dental diseases significantly impact a horse's overall health, performance and quality of life. They can result in secondary infections and digestive disturbances, potentially leading to colic. A recently described disease affecting the incisors of horses is equine odontoclastic tooth resorption and hypercementosis (EOTRH). Understanding EOTRH is crucial for early diagnosis, effective management and prevention of its severe consequences. Objective: To determine proteomic differences in incisor cementum in horses with and without clinical EOTRH. Methods: Comparative and observational cli...
Identification and characterisation of temporal abundance of microRNAs in synovial fluid from an experimental equine model of osteoarthritis.
Equine veterinary journal    January 8, 2025   doi: 10.1111/evj.14456
Walters M, Skovgaard K, Heegaard PMH, Fang Y, Kharaz YA, Bundgaard L, Skovgaard LT, Jensen HE, Andersen PH, Peffers MJ, Jacobsen S.MicroRNAs, a class of small noncoding RNAs, serve as post-transcriptional regulators of gene expression and are present in a stable and quantifiable form in biological fluids. MicroRNAs may influence intra-articular responses and the course of disease, but very little is known about their temporal changes in osteoarthritis. Objective: To identify miRNAs and characterise the temporal changes in their abundance in SF from horses with experimentally induced osteoarthritis. We hypothesised that the abundance of miRNA would change during disease progression. Methods: In vivo experiments. Methods: R...
Abdominal Ultrasonography in Healthy Female Standard Donkeys.
Animals : an open access journal from MDPI    January 8, 2025   Volume 15, Issue 2 129 doi: 10.3390/ani15020129
Accorroni L, Bazzano M, Marchegiani A, Spaterna A, Laus F.Knowledge of the normal ultrasound anatomy in the donkey is essential to understand pathological changes and to reach an early diagnosis, considering the "dullness" and stoicism of these animals in pain manifestations. The aims of this study were to document which abdominal viscera could be identified using a transcutaneous ultrasonography technique under field conditions in unsedated, standing donkeys to determine where the different abdominal structures could be easily displayed and to describe any variation that occurred between different donkeys and horses. In this work, the manual techniq...