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  1. AU="Rachel Bittencourt Ribeiro"
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  1. Article ; Online: Molecular detection of porcine circovirus (PCV2 and PCV3), torque teno swine virus 1 and 2 (TTSuV1 and TTSuVk2), and histopathological findings in swine organs submitted to regular slaughter in Southeast, Brazil.

    de Souza, Amanda Eduarda / Cruz, Ana Claudia de Menezes / Rodrigues, Ingrid Lyrio / de Carvalho, Eulógio Carlos Queiroz / Varella, Rafael Brandão / Medina, Raphael Mansur / Rodrigues, Rachel Bittencourt Ribeiro / Silveira, Renato Luiz / de Castro, Tatiana Xavier

    Brazilian journal of veterinary medicine

    2023  Volume 45, Page(s) e000623

    Abstract: Porcine circovirus 2 and 3 (PCV2 and PCV3) and torque teno sus virus 1 and 2 (TTSuV1 and TTSuVk2) are important pathogens in pig associated with post-weaning mortality, different clinical syndromes in adults (PCVAD), and a decrease of average daily ... ...

    Abstract Porcine circovirus 2 and 3 (PCV2 and PCV3) and torque teno sus virus 1 and 2 (TTSuV1 and TTSuVk2) are important pathogens in pig associated with post-weaning mortality, different clinical syndromes in adults (PCVAD), and a decrease of average daily weight gain (PCV2-SI) but little is known about the infection on asymptomatic pigs. The aim of this study was to evaluate the presence of PCV2, PCV3, TTSuV1, and TTSuVk2 in swine organ samples from asymptomatic pigs slaughtered in Espírito Santo State, South-eastern Brazil, through molecular detection and histopathological analysis. Nested PCR showed the presence of PCV2 DNA in 10% (14/140), PCV3 in 13.6% (19/140), TTSuV1 in 12.9% (18/140), and TTSuVk2 in 30% (42/140) of the tissue samples. All four viruses were detected in the lung, kidney, lymph node, and liver. TTSuVk2 was detecded in 30% (42/140), PCV3 in 13.6% (19/140), TTSuV1 in 12.9% (18/140), and PCV2 in 10% (14/140) of the samples. Single infections were observed in 30.7% (43/140), while co-detections in the same tissue occurred in 15.7% (22/140). The most frequent combinations were TTSuV1/TTSuVk2 in 31.8% (7/22), PCV2/TTSuVk2 in 18.1% (4/22), and PCV2/PCV3/TTSuVk2 in 13.6% (3/22). Lymphocyte depletion was associated with TTSuVk2 infection (p = 0.0041) suggesting that TTSuVK2 plays an induction of PMWS-like lymphoid lesions in pigs. The data obtained in this study show that PCV2, PCV3, TTSuV1, and TTSuVk2 are related to infection in asymptomatic animals with different tissue lesions, and the molecular diagnosis for these pathogens should be considered in the sanitary monitoring of herds.
    Language English
    Publishing date 2023-07-26
    Publishing country Brazil
    Document type Journal Article
    ISSN 2527-2179
    ISSN (online) 2527-2179
    DOI 10.29374/2527-2179.bjvm000623
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Effects of pure and ozonated sunflower seed oil (Helianthus annuus) on hypergranulation tissue formation, infection and healing of equine lower limb wounds

    Paula Alessandra Di Filippo / Luiza Maria Feitosa Ribeiro / Francielli Pereira Gobbi / Gabriela Bravim Lemos / Rachel Bittencourt Ribeiro / Hassan Jerdy / Larissa Carvalho da Silva / Inácio Silva Viana / Célia Raquel Quirino

    Brazilian Journal of Veterinary Medicine, Vol 42, Iss 1, Pp e113520-e

    2021  Volume 113520

    Abstract: This study was undertaken to evaluate the therapeutic effects of topical application of pure sunflower seed oil (oil group) and ozonated sunflower seed oil (ozone group) on acute cutaneous wound healing in eight healthy horses. The control group was ... ...

    Abstract This study was undertaken to evaluate the therapeutic effects of topical application of pure sunflower seed oil (oil group) and ozonated sunflower seed oil (ozone group) on acute cutaneous wound healing in eight healthy horses. The control group was treated with 0.9% sodium chloride. Two wounds were surgically produced on each horse on the proximal epiphysis of the metacarpus on the dorsal aspect of each forelimb. Wound area and contraction were measured on days 0, 3, 7, 14 and 21. Biopsy samples were taken to evaluate epithelial hyperplasia, inflammation, exuberant granulation tissue, exudate type, angiogenesis, and fibroplasia. Culture swabs were also collected. Wound contraction at 21 days for the oil group was 52.68%, for the ozone group was 72.16%, and for the control group (0.9% sodium chloride) was 34.80%. The ozone group had a significantly smaller wound size and a residual wound area than the control and the oil groups, on days 14 and 21. The control-wounds and oil-wounds had suppurative exudate and the presence of Streptococcus zooepidemicus. Neutrophilic inflammatory infiltrate was observed in all groups. Granulation tissue was observed on day 7 in all groups, but exuberant granulation tissue was observed only in the control group on days 14 and 21. Reepithelialization was observed on day 14 in the ozone group. In conclusion, these results demonstrate that topical application of ozonated sunflower seed oil accelerates acute cutaneous wound repair in horses, preventing hypergranulation tissue and infection, and that it is superior to treatment with pure sunflower seed oil and 0.9% sodium chloride.
    Keywords wound ; healing ; equine ; phytotherapy ; ozone ; Veterinary medicine ; SF600-1100
    Subject code 630
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher Sociedade de Medicina Veterinária do Estado do Rio de Janeiro
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Helicobacter spp. and gastric lesions association in minipigs

    Renato Luiz Silveira / Ana Claudia de Menezes Cruz / Hassan Jerdy Leandro / Mariah Bianchi Reis Gusmão Petronilha / Rachel Bittencourt Ribeiro Rodrigues / Maria Aparecida da Silva / Raphael Mansur Medina / Fabiana Batalha Knackfuss / Eulógio Carlos Queiroz de Carvalho

    Ciência Rural, Vol 51, Iss

    2021  Volume 3

    Abstract: ABSTRACT: Due to their similarity to humans, studies regarding gastric ulcers in pigs have become of great interest. It is known that Helicobacter spp. is related to the occurrence of these ulcers, as they possess a high prevalence in pigs. This study ... ...

    Abstract ABSTRACT: Due to their similarity to humans, studies regarding gastric ulcers in pigs have become of great interest. It is known that Helicobacter spp. is related to the occurrence of these ulcers, as they possess a high prevalence in pigs. This study aimed to associate gastric lesions findings naturally occurring in minipigs related to or not related to the presence of Helicobacter spp., through the ultra-rapid urease test and immunohistochemical analysis, reaffirming the disease in swine as a natural biomedical model for human cases. For this, samples of formalin-fixed paraffin-embedded gastric tissues from 40 minipigs were obtained at the Laboratório de Morfologia e Patologia Animal (LMPA) in the Universidade Estadual do Norte Fluminense (UENF). Regarding the ultra-rapid urease test, no animal was positive in all regions. However, 18 were positive in at least one: six (15%) were positive in the aglandular region, eight (20%) in the antrum region, 13 (32.5%) in the region of the cardiac gland, and one (2.5%) in the region of the fundic gland. Regarding immunohistochemical analysis, only one animal was positive in all regions, and 32 animals were positive in at least one: four (10%) were positive in the aglandular region, 10 (25%) in the antrum region, 23 (57.5%) in the region of the cardiac gland, and three (7.5%) in the region of the fundic gland. The gastric lesion findings showed a close relationship with Helicobacter spp., enriching the laboratory animal pathologies list. The immunostaining of the bacteria not associated with gastric lesions in certain regions demonstrated the saprophytic and opportunisitic nature of Helicobacter.
    Keywords gastric ulcer ; Helicobacter ; immunohistochemistry ; swine ; ultrarapid urease test ; Agriculture ; S ; Agriculture (General) ; S1-972
    Subject code 630
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher Universidade Federal de Santa Maria
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article: Pathologies of the digestive system caused by marine debris in Chelonia mydas

    Jerdy, Hassan / Eduardo Shimoda / Eulógio Carlos Queiróz de Carvalho / Maria Aparecida da Silva / Mariah Bianchi / Max Rondon Werneck / Rachel Bittencourt Ribeiro

    Marine pollution bulletin. 2017 Mar. 15, v. 116, no. 1-2

    2017  

    Abstract: The growth of human population and deficient pollution control measures pose significant challenge to the environment. Despite conservation efforts, all sea turtle species are at some risk of extinction. The present study investigated the effect of ... ...

    Abstract The growth of human population and deficient pollution control measures pose significant challenge to the environment. Despite conservation efforts, all sea turtle species are at some risk of extinction. The present study investigated the effect of marine debris on the gastrointestinal tract of green turtles in southeastern Brazil. Of the 777 animals evaluated, 290 showed marine debris in one segment of the gastrointestinal tract. The presence of these materials in the gastrointestinal tract may be harmful, independent of the segment involved, and increases the risk of impaction. Marine debris has become a significant hazard to Chelonia mydas in the region surveyed, causing perforation, rupture, or fecal impaction that, when not treated, is potentially fatal, exposing the intestine to bacterial infection.
    Keywords bacterial infections ; Chelonia mydas ; control methods ; extinction ; human population ; intestines ; pollutants ; pollution control ; risk ; sea turtles ; water pollution ; Brazil
    Language English
    Dates of publication 2017-0315
    Size p. 192-195.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2001296-2
    ISSN 1879-3363 ; 0025-326X
    ISSN (online) 1879-3363
    ISSN 0025-326X
    DOI 10.1016/j.marpolbul.2017.01.009
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Single-port laparoscopic ovariectomy using a pre-tied loop ligature in Santa Ines ewes

    Felipe Farias Pereira da Câmara Barros / Pedro Paulo Maia Teixeira / Marco Augusto Machado Silva / Cassia Maria Molinaro Coelho / Maristela de Cassia Seudo Lopes / Aline Eyko Kawanami / Denise Granato Chung / Leandro Nassar Coutinho / Rachel Bittencourt Ribeiro / Luciana Cristina Padilha / Wilter Ricardo Russiano Vicente

    Ciência Rural, Vol 45, Iss 11, Pp 2033-

    2015  Volume 2038

    Abstract: ABSTRACT: The aim of the study was to develop and assess the feasibility, postoperative pain and inflammatory response of the single-port laparoscopic ovariectomy in ewes, using a simple pre-tied loop ligature technique. Pre-tied Meltzer's knot was ... ...

    Abstract ABSTRACT: The aim of the study was to develop and assess the feasibility, postoperative pain and inflammatory response of the single-port laparoscopic ovariectomy in ewes, using a simple pre-tied loop ligature technique. Pre-tied Meltzer's knot was employed for prophylactic hemostasis of the ovarian pedicle. Slipknot was inserted within the abdominal cavity through a 14-gauge needle and tied surrounding the ovarian pedicle. Mean surgical time, manipulation, ligature and resection of each ovary and anesthesia time were 63±20, 20±10 and 91±26 minutes, respectively. No bleeding occurred during the surgeries. Ewes showed low scores pain (0.5±0.5) at all time-points. Postsurgical plasma fibrinogen was within the normal range for sheep specie at all time-points. The ewes showed a significant weight gain in comparison to the basal scaling (one day before the surgery). Single-port laparoscopic ovariectomy using a pre-tied loop ligature is feasible in the ovine specie and provided minimal postoperative distress and quick weight gain.
    Keywords laparoscopia ; nó deslizante ovário ; ovinos ; acesso único ; Agriculture ; S ; Agriculture (General) ; S1-972
    Subject code 630
    Language English
    Publishing date 2015-11-01T00:00:00Z
    Publisher Universidade Federal de Santa Maria
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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