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Oliveira-Cordeiro B, Fernandes-DA-Silva A, Silva-Veiga FM, Miranda CS, Martins FF, Souza-Mello V. Long-term hepatic damage in high-fructose-fed C57BL/6 mice: hepatic fibrogenesis, endoplasmic reticulum stress markers, and fibrosis. AN ACAD BRAS CIENC 2023; 95:e20220784. [PMID: 38126519 DOI: 10.1590/0001-3765202320220784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 04/19/2023] [Indexed: 12/23/2023] Open
Abstract
The rising fructose intake in sugar-sweetened beverages and ultra-processed foods relates to the high incidence of nonalcoholic fatty liver disease. This study aimed to examine the effects of long-term high-fructose diet intake (for 16 or 20 weeks) on progressive hepatic damage, focusing on the endoplasmic reticulum stress markers and fibrogenesis as possible triggers of liver fibrosis. Forty 3-month-old male C57BL/6J mice were randomly divided into four nutritional groups: C16 (control diet for 16 weeks), C20 (control diet for 20 weeks), HFRU16 (high-fructose diet for 16 weeks), and HFRU20 (high-fructose diet for 20 weeks). Both HFRU groups showed oral glucose intolerance and insulin resistance, but only the HFRU20 group exhibited increased inflammation. The increased lipogenic and endoplasmic reticulum stress markers triggered hepatic fibrogenesis. Hence, time-dependent perivascular fibrosis with positive immunostaining for alpha-smooth muscle actin and reelin in HFRU mice was observed, ensuring fibrosis development in this mouse model. Our study showed time-dependent and progressive damage on hepatic cytoarchitecture, with maximization of hepatic steatosis without overweight in HFRU20 mice. ER stress and liver inflammation could mediate hepatic stellate cell activation and fibrogenesis, emerging as targets to prevent NAFLD progression and fibrosis onset in this dietary model.
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Affiliation(s)
- Brenda Oliveira-Cordeiro
- Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcântara Gomes, Laboratório de Morfometria, Metabolismo e Doenças Cardiovasculares, Boulevard 28 de Setembro, 87, fundos (andar térreo), Vila Isabel, 20551-030 Rio de Janeiro, RJ, Brazil
| | - Aline Fernandes-DA-Silva
- Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcântara Gomes, Laboratório de Morfometria, Metabolismo e Doenças Cardiovasculares, Boulevard 28 de Setembro, 87, fundos (andar térreo), Vila Isabel, 20551-030 Rio de Janeiro, RJ, Brazil
| | - Flavia Maria Silva-Veiga
- Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcântara Gomes, Laboratório de Morfometria, Metabolismo e Doenças Cardiovasculares, Boulevard 28 de Setembro, 87, fundos (andar térreo), Vila Isabel, 20551-030 Rio de Janeiro, RJ, Brazil
| | - Carolline S Miranda
- Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcântara Gomes, Laboratório de Morfometria, Metabolismo e Doenças Cardiovasculares, Boulevard 28 de Setembro, 87, fundos (andar térreo), Vila Isabel, 20551-030 Rio de Janeiro, RJ, Brazil
| | - Fabiane F Martins
- Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcântara Gomes, Laboratório de Morfometria, Metabolismo e Doenças Cardiovasculares, Boulevard 28 de Setembro, 87, fundos (andar térreo), Vila Isabel, 20551-030 Rio de Janeiro, RJ, Brazil
| | - Vanessa Souza-Mello
- Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcântara Gomes, Laboratório de Morfometria, Metabolismo e Doenças Cardiovasculares, Boulevard 28 de Setembro, 87, fundos (andar térreo), Vila Isabel, 20551-030 Rio de Janeiro, RJ, Brazil
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Azulay DR, Bravo BSF, Azulay V, Martins FF, Luiz RR, Cuzzi T, Mandarim CA, Manela-Azulay M. Durability of the improvement of collagen I and collagen III with the use of oral isotretinoin in the treatment of photoaging. Int J Dermatol 2023; 62:1538-1542. [PMID: 37861232 DOI: 10.1111/ijd.16868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 09/12/2023] [Accepted: 09/20/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND Oral isotretinoin (ISO) is the drug of choice for the treatment of severe acne. For photoaging treatment, ISO has been proved to be effective in some controlled and noncontrolled trials and is an alternative to topical retinoic acid (RA) therapy, which causes an expected skin irritation. OBJECTIVE To evaluate and compare the skin remodeling in patients taking ISO 20 mg 3 times a week for 12 weeks and 12 weeks after the end of the treatment to quantify collagen I and collagen III augmentation. MATERIAL AND METHODS Immunohistochemical studies were performed to evaluate the expression of collagen I and collagen III, metalloproteinases (MMPs) -1, -3, -7, -9, -12, and the tissue inhibitor of MMP type-1 (TIMP-1) of the skin of 20 45 to 50-year-old women through morphometry in a semiquantitative method. The inclusion criteria were facial aging 2 and 3 of Glogau's classification, with phototypes between II and V who had not entered menopause. Biopsies of the skin of the left preauricular region were performed at three different times: pre-treatment (T0), end of 12-week treatment (T1), and 12 weeks posttreatment (T2). RESULTS Collagen fibers I and III increased with statistical significance in T1 (50.7%; P = 0.012) but not in T2 (49.7%), which in turn was higher than in T0 (47.2%) for collagen I and T1 (33.3%; P = 0.002) but not in T2 (32.7%), and also was higher than T0 (32.0%) for collagen III. MMP-9 presented a decreased activity with statistical significance in T1 (P = 0.047) and T2 (P = 0.058). MMP-1 showed a reduction in T2 only (P = 0.015). MMPs -3, -7, -12, and TIMP-1 did not present significant modification in their expressions during or after the treatment. CONCLUSIONS Low-dose ISO is effective in remodeling the extracellular matrix (ECM). This study found that the increase of collagen occurs through the augmentation of both collagen I and collagen III fibers. With originality, it was possible to verify the durability of these fibers for at least 12 weeks. This may be related to the decrease in MMP-9 expression verified at the end of the treatment and 12 weeks posttreatment.
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Affiliation(s)
- David R Azulay
- Institute of Dermatology, Prof. Rubem David Azulay do Hospital Geral da Santa Casa da Misericórdia do Rio de Janeiro, Rio de Janeiro, Brazil
- Serviço de Anatomia Patológica do Hospital Clementino Fraga Filho da, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Bruna S F Bravo
- Institute of Dermatology, Prof. Rubem David Azulay do Hospital Geral da Santa Casa da Misericórdia do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Vitoria Azulay
- Institute of Dermatology, Prof. Rubem David Azulay do Hospital Geral da Santa Casa da Misericórdia do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fabiane F Martins
- Laboratório de Morfometria e Morfologia Cardiovascular do Departamento de Anatomia da, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ronir R Luiz
- Instituto de Estudos em Saúde Coletiva da UFRJ, Rio de Janeiro, Brazil
| | - Tullia Cuzzi
- Institute of Dermatology, Prof. Rubem David Azulay do Hospital Geral da Santa Casa da Misericórdia do Rio de Janeiro, Rio de Janeiro, Brazil
- Serviço de Anatomia Patológica do Hospital Clementino Fraga Filho da, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Carlos A Mandarim
- Laboratório de Morfometria e Morfologia Cardiovascular do Departamento de Anatomia da, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mônica Manela-Azulay
- Institute of Dermatology, Prof. Rubem David Azulay do Hospital Geral da Santa Casa da Misericórdia do Rio de Janeiro, Rio de Janeiro, Brazil
- Serviço de Anatomia Patológica do Hospital Clementino Fraga Filho da, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
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Martins FF, Marinho TS, Cardoso LEM, Barbosa-da-Silva S, Souza-Mello V, Aguila MB, Mandarim-de-Lacerda CA. Semaglutide (GLP-1 receptor agonist) stimulates browning on subcutaneous fat adipocytes and mitigates inflammation and endoplasmic reticulum stress in visceral fat adipocytes of obese mice. Cell Biochem Funct 2022; 40:903-913. [PMID: 36169111 DOI: 10.1002/cbf.3751] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 08/24/2022] [Accepted: 09/13/2022] [Indexed: 12/15/2022]
Abstract
Semaglutide (GLP-1 agonist) was approved for treating obesity. Although the effects on weight loss and metabolism are known, the responses of adipocytes to semaglutide are yet limited. C57BL/6 male mice (n = 20/group) were fed a control diet (C) or a high-fat (HF) diet for 16 weeks and then separated into four groups (n = 10/group) for an additional four weeks: C, C diet and semaglutide, HF, and HF diet and semaglutide. Epididymal white adipose tissue (eWAT) and subcutaneous white adipose tissue (sWAT) fat pads were studied with biochemistry, immunohistochemistry/fluorescence, stereology, and reverse transcription-quantitative polymerase chain reaction. In obese mice, semaglutide reduced the fat pad masses (eWAT, -55%; sWAT, -40%), plasmatic cytokines, and proinflammatory gene expressions: tumor necrosis factor-alpha (-60%); interleukin (IL)-6 (-55%); IL-1 beta (-40%); monocyte chemoattractant protein-1 (-90%); and leptin (-80%). Semaglutide also lessened endoplasmic reticulum (ER) stress genes of activating transcription factor-4 (-85%), CCAAT enhancer-binding protein homologous protein (-55%), and growth arrest and DNA damage-inducible gene 45 (-45%). The obese mice's adipocyte hypertrophy and macrophage infiltration were equally reduced by semaglutide. Semaglutide enhanced multiloculation and uncoupled protein 1 (UCP1) labeling in obese mice: peroxisome proliferator-activated receptor-alpha (+560%) and gamma (+150%), fibronectin type III domain-containing protein 5 (+215%), peroxisome proliferator-activated receptor-alpha coactivator (+110%), nuclear respiratory factor 1 (+260%), and mitochondrial transcription factor A (+120%). Semaglutide also increased thermogenetic gene expressions for the browning phenotype maintenance: beta-3 adrenergic receptor (+520%), PR domain containing 16 (+90%), and Ucp1 (+110%). In conclusion, semaglutide showed significant beneficial effects beyond weight loss, directly on fat pads and adipocytes of obese mice, remarkably anti-inflammatory, and reduced adipocyte size and ER stress. Besides, semaglutide activated adipocyte browning, improving UCP1, mitochondrial biogenesis, and thermogenic marker expressions help weight loss.
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Affiliation(s)
- Fabiane F Martins
- Biomedical Center, Laboratory of Morphometry, Metabolism and Cardiovascular Diseases, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Thatiany S Marinho
- Biomedical Center, Laboratory of Morphometry, Metabolism and Cardiovascular Diseases, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luiz E M Cardoso
- Biomedical Center, Laboratory of Morphometry, Metabolism and Cardiovascular Diseases, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sandra Barbosa-da-Silva
- Biomedical Center, Laboratory of Morphometry, Metabolism and Cardiovascular Diseases, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Vanessa Souza-Mello
- Biomedical Center, Laboratory of Morphometry, Metabolism and Cardiovascular Diseases, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcia B Aguila
- Biomedical Center, Laboratory of Morphometry, Metabolism and Cardiovascular Diseases, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carlos A Mandarim-de-Lacerda
- Biomedical Center, Laboratory of Morphometry, Metabolism and Cardiovascular Diseases, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
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Soares E, Soares AC, Trindade PL, Monteiro EB, Martins FF, Forgie AJ, Inada KOP, de Bem GF, Resende A, Perrone D, Souza-Mello V, Tomás-Barberán F, Willing BP, Monteiro M, Daleprane JB. Jaboticaba (Myrciaria jaboticaba) powder consumption improves the metabolic profile and regulates gut microbiome composition in high-fat diet-fed mice. Biomed Pharmacother 2021; 144:112314. [PMID: 34634561 DOI: 10.1016/j.biopha.2021.112314] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 12/24/2022] Open
Abstract
The consumption of a high-fat diet can cause metabolic syndrome and induces host gut microbial dysbiosis and non-alcoholic fatty liver disease (NAFLD). We evaluated the effect of polyphenol-rich jaboticaba peel and seed powder (JPSP) on the gut microbial community composition and liver health in a mouse model of NAFLD. Three-month-old C57BL/6 J male mice, received either a control (C, 10% of lipids as energy, n = 16) or high-fat (HF, 50% of lipids as energy, n = 64) diet for nine weeks. The HF mice were randomly subdivided into four groups (n = 16 in each group), three of which (HF-J5, HF-J10, and HF-J15) were supplemented with dietary JPSP for four weeks (5%, 10%, and 15%, respectively). In addition to attenuating weight gain, JPSP consumption improved dyslipidemia and insulin resistance. In a dose-dependent manner, JPSP consumption ameliorated the expression of hepatic lipogenesis genes (AMPK, SREBP-1, HGMCoA, and ABCG8). The effects on the microbial community structure were determined in all JPSP-supplemented groups; however, the HF-J10 and HF-J15 diets led to a drastic depletion in the species of numerous bacterial families (Bifidobacteriaceae, Mogibacteriaceae, Christensenellaceae, Clostridiaceae, Dehalobacteriaceae, Peptococcaceae, Peptostreptococcaceae, and Ruminococcaceae) compared to the HF diet, some of which represented a reversal of increases associated with HF. The Lachnospiraceae and Enterobacteriaceae families and the Parabacteroides, Sutterella, Allobaculum, and Akkermansia genera were enriched more in the HF-J10 and HF-J15 groups than in the HF group. In conclusion, JPSP consumption improved obesity-related metabolic profiles and had a strong impact on the microbial community structure, thereby reversing NAFLD and decreasing its severity.
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Affiliation(s)
- Elaine Soares
- Laboratory for studies of Interactions between Nutrition and Genetics, LEING, Department of Basic and Experimental Nutrition, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Aruanna C Soares
- Laboratory for studies of Interactions between Nutrition and Genetics, LEING, Department of Basic and Experimental Nutrition, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Patricia Leticia Trindade
- Laboratory for studies of Interactions between Nutrition and Genetics, LEING, Department of Basic and Experimental Nutrition, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Elisa B Monteiro
- Laboratory for studies of Interactions between Nutrition and Genetics, LEING, Department of Basic and Experimental Nutrition, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Fabiane F Martins
- Laboratory of Morphometry, Metabolism, and Cardiovascular Disease, Biomedical Center, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Andrew J Forgie
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Kim O P Inada
- Laboratory for studies of Interactions between Nutrition and Genetics, LEING, Department of Basic and Experimental Nutrition, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Graziele F de Bem
- Laboratory of Cardiovascular Pharmacology and Medicinal Plants, Department of Pharmacology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Angela Resende
- Laboratory of Cardiovascular Pharmacology and Medicinal Plants, Department of Pharmacology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Daniel Perrone
- Laboratório de Bioquímica Nutricional e de Alimentos, Chemistry Institute, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos 149, CT, Bloco A, sala 528 A, 21941-909 Rio de Janeiro, Brazil
| | - Vanessa Souza-Mello
- Laboratory of Morphometry, Metabolism, and Cardiovascular Disease, Biomedical Center, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Francisco Tomás-Barberán
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, CEBAS-CSIC, P.O. Box 164, 30100 Campus de Espinardo, Murcia, Spain
| | - Benjamin P Willing
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Mariana Monteiro
- Laboratório de Alimentos Funcionais, Instituto de Nutrição Josué de Castro, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Julio B Daleprane
- Laboratory for studies of Interactions between Nutrition and Genetics, LEING, Department of Basic and Experimental Nutrition, Rio de Janeiro State University, Rio de Janeiro, Brazil.
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Martins FF, Beguelini MR, Puga CC, Morielle-Versute E, Vilamaior PS, Taboga SR. Morphophysiology and ultrastructure of the male reproductive accessory glands of the bats Carollia perspicillata, Glossophaga soricina and Phyllostomus discolor (Chiroptera: Phyllostomidae). Acta Histochem 2016; 118:640-651. [PMID: 27425652 DOI: 10.1016/j.acthis.2016.07.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 07/07/2016] [Accepted: 07/08/2016] [Indexed: 12/28/2022]
Abstract
The male reproductive accessory glands (RAGs) are important organs that contribute to the secretion of different substances that composed the ejaculate. Despite this important function, their composition, anatomy and function vary widely between species. Thus, the RAGs of three species of phyllostomid bats were morphologically and ultrastructurally characterized and compared in this study. The RAGs of the three analyzed species are composed of a prostate and a pair of bulbourethral glands (BG). In all species, the prostate is composed of three well-defined regions (ventral, dorsolateral and dorsal regions). The ventral region showed an atypical epithelium (undefined) with no obvious cellular limits and a holocrine PAS-positive secretion. The dorsolateral region of Carollia perspicillata and Phyllostomus discolor showed a pseudostratified cubic morphology, and that from Glossophaga soricina had a columnar morphology endowed with cytoplasmic projections and stereocilia. The dorsal region of the three analyzed species is composed of a pseudostratified columnar epithelium endowed with stereocilia; however, G. soricina also presented cytoplasmic projections in the apical portions of the secretory cells similar to those in the dorsolateral region. The BG of the three analyzed species are composed of a pseudostratified columnar epithelium including basal and PAS-positive secretory cells. In conclusion, this study morphologically and ultrastructurally characterized the RAGs of three species of phyllostomid bats, demonstrating the presence of a novel third prostatic region in species of this family. The results also showed the absence of seminal vesicles and ampullary glands, and better characterized the holocrine pattern of the prostatic ventral region, which is unique to bats.
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Martins FF, Puga CC, Beguelini MR, Morielle-Versute E, Vilamaior PS, Taboga SR. Comparative analysis of the male reproductive accessory glands of bat species from the five Brazilian Subfamilies of the family Phyllostomidae (Chiroptera). J Morphol 2014; 276:470-80. [DOI: 10.1002/jmor.20354] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 10/21/2014] [Accepted: 11/18/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Fabiane F. Martins
- Department of Biology; UNESP-Universidade Estadual Paulista; São José do Rio Preto São Paulo 15054-000 Brazil
| | - Cintia C.I. Puga
- Department of Biology; UNESP-Universidade Estadual Paulista; São José do Rio Preto São Paulo 15054-000 Brazil
| | - Mateus R. Beguelini
- Department of Biology; UNESP-Universidade Estadual Paulista; São José do Rio Preto São Paulo 15054-000 Brazil
| | - Eliana Morielle-Versute
- Department of Zoology and Botany; UNESP-Universidade Estadual Paulista; São José do Rio Preto São Paulo 15054-000 Brazil
| | - Patricia S.L. Vilamaior
- Department of Biology; UNESP-Universidade Estadual Paulista; São José do Rio Preto São Paulo 15054-000 Brazil
| | - Sebastião R. Taboga
- Department of Biology; UNESP-Universidade Estadual Paulista; São José do Rio Preto São Paulo 15054-000 Brazil
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Puga CCI, Beguelini MR, Martins FF, Falleiros LR, Morielle-Versute E, Vilamaior PSL, Taboga SR. Seasonal changes in the prostatic complex of Artibeus planirostris (Chiroptera: Phyllostomidae). Gen Comp Endocrinol 2014; 197:33-42. [PMID: 24345383 DOI: 10.1016/j.ygcen.2013.12.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 12/02/2013] [Accepted: 12/06/2013] [Indexed: 10/25/2022]
Abstract
The male reproductive accessory glands are important organs that secrete products that ensure the survival, viability and motility of spermatozoa, not only in the male reproductive tract, but also in the female. Most studies relating to the reproduction of bats do not include these glands, and detailed studies of these glands describing annual variations in the morphology and physiology are scarce. The aim of this study was to evaluate the impact of these variations on morphophysiology of the prostatic complex (PC) of Artibeus planirostris (Chiroptera: Phyllostomidae). Adult males were collected from June 2009 to July 2010, and the PC was subjected to various analyses. We observed that the PC showed marked variations throughout the year. Both PC and testicular weight increased synchronously with an increasing rate of circulating testosterone, from the autumn until summer, demonstrating that both organs are regulated by this hormone. Each region of the PC (ventral and dorsal) was unique and distinct. The ventral region showed the glandular lumen as a predominant component, in contrast to the dorsal introduced epithelium; acid phosphatase activity was observed in the epithelium of all acini in the dorsal region, but only in the stroma of the ventral region, in addition each region responded differently to variations in the environment and circulating testosterone. We concluded that the PC of A. planirostris produces two secretory peaks, which were related to a gradual increase in the rate of circulating testosterone, which stimulates both of the prostate regions to prepare for the two reproductive periods.
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Affiliation(s)
- Cíntia C I Puga
- Department of Biology, UNESP - Univ Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Mateus R Beguelini
- Department of Biology, UNESP - Univ Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Fabiane F Martins
- Department of Biology, UNESP - Univ Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Luiz Roberto Falleiros
- Department of Biology, UNESP - Univ Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Eliana Morielle-Versute
- Department of Zoology and Botany, UNESP - Univ Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Patricia S L Vilamaior
- Department of Biology, UNESP - Univ Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil
| | - Sebastião R Taboga
- Department of Biology, UNESP - Univ Estadual Paulista, São José do Rio Preto, São Paulo 15054-000, Brazil.
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Beguelini MR, Puga CCI, Martins FF, Betoli AHS, Taboga SR, Morielle-Versute E. Morphological Variation of Primary Reproductive Structures in Males of Five Families of Neotropical Bats. Anat Rec (Hoboken) 2012; 296:156-67. [DOI: 10.1002/ar.22613] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Accepted: 09/13/2012] [Indexed: 11/12/2022]
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Mendes AB, Martins FF, Cruz WMS, da Silva LE, Abadesso CBM, Boaventura GT. Bone development in children and adolescents with PKU. J Inherit Metab Dis 2012; 35:425-30. [PMID: 22076426 DOI: 10.1007/s10545-011-9412-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2009] [Revised: 10/08/2011] [Accepted: 10/13/2011] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Individuals with phenylketonuria (PKU, OMIM 261600) have shown bone disease from childhood. Factors such as non-adherence to treatment, nutritional inadequacy, and high phenylalanine levels are associated with bone disease in several studies. This research aimed to describe the impact of dietary factors (consumption of energy, protein, calcium, phosphorus, and phenylalanine), and the control of plasma phenylalanine levels on bone age (BA) and bone mineral density (BMD). METHODOLOGY Thirteen patients of both genders, from 8 to 16 years old participated in this study. Control data were collected of phenylalanine levels, food frequency and record, hand and fist X-rays, and spinal bone densitometry. RESULTS In children group (CG), individuals non-adherent to diet (NAD) consumed lower amounts of calcium (472 ± 100 mg/day) and energy (1743 ± 486 Kcal); they had higher rates of phenylalanine (564 ± 94 μmol/L) in blood, intake phenylalanine (701 ± 334 mg/g), and higher protein intake from free foods (14 ± 6.67 g/day); bone age (BA) values higher than the chronological age (CA) and less BMD values (-0.7 ± 1.6 SD) also were verified. In adolescent group (AG, N = 8) of NAD, values were lower for energy intake (1379 ± 258 Kcal), calcium (801 ± 152 mg/day), phosphorus (657 ± 102 mg/day), food protein (25 ± 7.6 g/day), and intake phenylalanine (1067 ± 382 mg/day) than recommended. Higher levels of plasma phenylalanine (851 ± 244 μmol/L), bone age greater than chronological age and lower BMD values (-2.4 ± -2.5 SD) were observed. CONCLUSION The results suggest effects on BA and on BMD, in both children and adolescent groups. The bone development is expressed differently in children and adolescents. The non-adherence to the diet verified in both groups and the consequent imbalance in the nutrients intake involved in bone metabolism suggest that these factors influence the failure to thrive in children and reduced bone mineralization in adolescents.
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Affiliation(s)
- A B Mendes
- Mestrado em Atenção Integrada à Saúde da Criança e do Adolescente, Faculdade de Medicina da Universidade Federal Fluminense, Santos Moreira Street, 89 / 7 Santa Rosa, 24241080 Niterói, Rio de Janeiro, Brazil.
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