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Bandara Y, Priestnall SL, Chang YM, Kathrani A. Characterization of intestinal fibrosis in cats with chronic inflammatory enteropathy. J Vet Intern Med 2023; 37:936-947. [PMID: 37052621 DOI: 10.1111/jvim.16688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 03/10/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND Intestinal fibrosis (IF) is commonly identified on histopathology of intestinal biopsy specimens (IBSp) from cats with chronic inflammatory enteropathy (CIE) however, its clinical relevance is unknown. OBJECTIVES Characterize and determine the clinical relevance of IF in cats with CIE. ANIMALS Sixty-five client-owned cats diagnosed with CIE after gastrointestinal histopathology from a single referral hospital in the United Kingdom. METHODS Medical records were retrospectively searched for cases of CIE on the basis of histopathology of IBSp. The IBSp from eligible cats were re-reviewed by a single board-certified veterinary pathologist for inclusion. Masson's trichrome (MT) stain and immunohistochemical labeling using antivimentin and anticollagen I antibodies to identify IF. For each case, various variables at the time of diagnostic investigation were recorded and referring veterinarians were contacted for follow-up information. RESULTS Mucosal fibrosis was identified in 51% of duodenal and 76% of colonic hematoxylin and eosin (HE)-stained IBSp. Vimentin labeling and MT staining identified additional cases of IF in 65% and 58% of the duodenal biopsy specimens, respectively. Vimentin labeling detected IF in 79% of the colonic biopsy specimens. Positive vimentin labeling and MT staining of the colonic mucosa were associated with decreased likelihood of attaining clinical remission and increased risk of death because of CIE (P < .05). CONCLUSIONS AND CLINICAL IMPORTANCE Additional stains at initial histopathologic examination of IBSp allow for better identification of IF compared to routine HE staining. Identification of IF in colonic biopsy specimens by vimentin immunolabeling and MT staining may provide prognostic information in cats with CIE.
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Affiliation(s)
- Yuvani Bandara
- Royal Veterinary College, University of London, London, UK
| | | | - Yu-Mei Chang
- Royal Veterinary College, University of London, London, UK
| | - Aarti Kathrani
- Royal Veterinary College, University of London, London, UK
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Egloff S, Reichler IM, Kowalewski MP, Keller S, Goericke-Pesch S, Balogh O. Uterine expression of smooth muscle alpha- and gamma-actin and smooth muscle myosin in bitches diagnosed with uterine inertia and obstructive dystocia. Theriogenology 2020; 156:162-170. [PMID: 32750597 DOI: 10.1016/j.theriogenology.2020.06.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 06/15/2020] [Accepted: 06/27/2020] [Indexed: 02/03/2023]
Abstract
Primary uterine inertia (PUI) is the most common type of dystocia in dogs. We hypothesized that PUI develops because of lower than normal expression of the basic contractile elements in the uterus, i.e., smooth muscle (SM) α- and γ-actin and SM-myosin, and that the expression of these proteins is influenced by the number of fetuses present in utero. Full-thickness inter-placental uterine biopsies were collected during Cesarean sections from dogs with PUI (n = 11), and from bitches with obstructive dystocia (OD) still presenting strong labor contractions (designated as the control group, n = 7). Relative gene expression was determined by semi-quantitative real-time (TaqMan) PCR, and protein localization by immunohistochemistry. Gene expression between PUI and OD bitches, and between PUI bitches carrying small, large, or average number of fetuses according to their breed, were compared. Uterine SM-γ-actin and SM-myosin mRNA levels were significantly higher in PUI than in OD dogs, while SM-α-actin did not differ. PUI bitches carrying large litters had lower uterine SM-γ-actin gene expression than those with small litters (P = 0.008). Immunostaining for SM-actin isoforms and SM-myosin was present in the myometrium, and localization pattern and staining intensity appeared similar in the PUI and OD groups. All proteins stained in blood vessels, and SM-γ-actin was also present in endometrial luminal and glandular epithelium. In conclusion, higher uterine SM-γ-actin and SM-myosin gene expression in PUI bitches, compared with OD dogs, might be an indication of abnormal progression with labor. Whether this is the cause of PUI due to an intrinsic error of the myometrium not becoming committed to labor, or the consequence of inadequate endocrine or mechanical stimuli, is not clear. Litter size was previously shown to be one of the risk factors for the development of uterine inertia in dogs, and our findings suggest possible differing uterine pathophysiology of PUI with respect to litter size.
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Affiliation(s)
- S Egloff
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057, Zurich, Switzerland
| | - I M Reichler
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057, Zurich, Switzerland
| | - M P Kowalewski
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057, Zurich, Switzerland
| | - S Keller
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057, Zurich, Switzerland
| | - S Goericke-Pesch
- Section for Veterinary Reproduction and Obstetrics, Department of Veterinary Clinical Sciences, University of Copenhagen, Frederiksberg, Denmark; Reproductive Unit of the Clinic - Clinic for Small Animals, University of Veterinary Medicine Hannover, Bünteweg 15, 30559, Hannover, Germany
| | - O Balogh
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057, Zurich, Switzerland; Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, 215 Duck Pond Dr, Blacksburg, VA, 24061, USA.
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Zhao B, Liang L, Wang J, Ren C, Hu M, Wu H, Chen L, Liu X, Xu F, Zheng X, Chen J, Cui S. The effect of a human acellular amniotic membrane loaded with mechanical stretch-stimulated bone marrow mesenchymal stem cells for the treatment of pelvic floor dysfunction. RSC Adv 2017. [DOI: 10.1039/c7ra02020a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pelvic floor dysfunction (PFD) has a severe impact on the quality of life of middle-aged and elderly women and is closely related to the damage of pelvic support tissues, especially ligaments.
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Affiliation(s)
- Bing Zhao
- Third Affiliated Hospital of Zhengzhou University
- Zhengzhou
- PR China
| | - Linlin Liang
- The Center for Reproduction
- Henan Province People's Hospital
- Zhengzhou
- PR China
| | - Junmin Wang
- Third Affiliated Hospital of Zhengzhou University
- Zhengzhou
- PR China
- Laboratory Animal Center
- Zhengzhou University
| | - Chenchen Ren
- Third Affiliated Hospital of Zhengzhou University
- Zhengzhou
- PR China
| | - Mengcai Hu
- Third Affiliated Hospital of Zhengzhou University
- Zhengzhou
- PR China
| | - Huiyan Wu
- Third Affiliated Hospital of Zhengzhou University
- Zhengzhou
- PR China
| | - Lulu Chen
- Third Affiliated Hospital of Zhengzhou University
- Zhengzhou
- PR China
| | - Xiaojun Liu
- Henan Medical Equipment Inspection Institute
- Zhengzhou
- PR China
| | - Feng Xu
- Third Affiliated Hospital of Zhengzhou University
- Zhengzhou
- PR China
| | - Xueqin Zheng
- Third Affiliated Hospital of Zhengzhou University
- Zhengzhou
- PR China
| | - Juan Chen
- Third Affiliated Hospital of Zhengzhou University
- Zhengzhou
- PR China
| | - Shihong Cui
- Third Affiliated Hospital of Zhengzhou University
- Zhengzhou
- PR China
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Kendziorski JA, Belcher SM. Strain-specific induction of endometrial periglandular fibrosis in mice exposed during adulthood to the endocrine disrupting chemical bisphenol A. Reprod Toxicol 2015; 58:119-30. [PMID: 26307436 DOI: 10.1016/j.reprotox.2015.08.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 08/01/2015] [Accepted: 08/17/2015] [Indexed: 11/17/2022]
Abstract
The aim of this study was to compare effects of bisphenol A (BPA) on collagen accumulation in uteri of two mouse strains. Adult C57Bl/6N and CD-1 mice were exposed to dietary BPA (0.004-40mg/kg/day) or 17α-ethinyl estradiol (0.00002-0.001mg/kg/day) as effect control. An equine endometrosis-like phenotype with increased gland nesting and periglandular collagen accumulation was characteristic of unexposed C57Bl/6N, but not CD-1, endometrium. BPA non-monotonically increased gland nest density and periglandular collagen accumulation in both strains. Increased collagen I and III expression, decreased matrix metalloproteinase 2 (MMP2) and MMP14 expression, and increased immune response were associated with the endometrosis phenotype in the C57Bl/6N strain and the 30ppm BPA CD-1 group. The association between the pro-collagen shift in increased collagen expression and decreased MMP2 expression and activity implies that strain differences and BPA exposure alter regulation of endometrial remodeling and contribute to increased fibrosis, a component of several human uterine diseases.
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Affiliation(s)
- Jessica A Kendziorski
- Department of Pharmacology and Cell Biophysics, University of Cincinnati College of Medicine, Cincinnati, OH 45267-0575, USA
| | - Scott M Belcher
- Department of Pharmacology and Cell Biophysics, University of Cincinnati College of Medicine, Cincinnati, OH 45267-0575, USA.
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Brolio MP, Cima DS, Miglino MA, Ambrósio CE. Histological comparison of the smooth uterine muscle of healthy golden retriever bitches, carriers of the progressive muscular dystrophy (GRMD) gene, and GRMD-affected bitches. Anim Reprod Sci 2014; 150:56-61. [PMID: 25200710 DOI: 10.1016/j.anireprosci.2014.08.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 07/25/2014] [Accepted: 08/15/2014] [Indexed: 10/24/2022]
Abstract
There is evidence to suggest that weakness of the pelvic and/or uterine musculature may negatively affect the obstetric performance of women who carry the gene for Duchenne muscular dystrophy (DMD). The golden retriever dog is the ideal animal model for preclinical studies of progressive muscular dystrophy, and this model is referred to as "golden retriever muscular dystrophy (GRMD)". This study evaluated and compared the histopathological aspects of the uterine muscle of eleven dogs: health, n=4; carriers of GRMD gene, n=5; and affected females, n=2. The obtained results showed that the uterine muscle of healthy dogs was exclusively composed of type III collagen, while a predominance of type I collagen and small amounts of type III were observed in the uterine muscle of the carriers. The myometrium of the affected bitches showed small quantities of both collagen types. The differences noted in the three evaluated groups suggest that female carrier and those individuals affected by muscular dystrophy had collagen alteration and muscle fiber commitment in the uterine muscle, a deficiency which could directly influence the composition and function of this tissue. In addition, this information is highly relevant to the reproductive management of these animals. This data open important venues for translate reproductive protocols for women, who carry the dystrophin gene.
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Affiliation(s)
- M P Brolio
- Department of Surgery, Faculty of Veterinary Medicine and Animal Science of the University of São Paulo - FMVZ-USP, Orlando Marques de Paiva, 87 street, Sao Paulo, SP 05508-270, Brazil.
| | - D S Cima
- Paulista University - UNIP, Tenente Júlio Prado Neves, 965 street, São Paulo, SP 02370-000, Brazil.
| | - M A Miglino
- Department of Surgery, Faculty of Veterinary Medicine and Animal Science of the University of São Paulo - FMVZ-USP, Orlando Marques de Paiva, 87 street, Sao Paulo, SP 05508-270, Brazil.
| | - C E Ambrósio
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering of the University of São Paulo - FZEA-USP, Duque de Caxias Norte, 225, Pirassunuga, SP 13635-900, Brazil.
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