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Hassan GS, Helal MB, Ibrahim HF. Immunohistochemical expression of estrogen receptor alpha in the maxillary sinus, pulp, and periodontal ligament of adjacent teeth in late pregnancy in rats. Odontology 2023; 111:608-617. [PMID: 36434465 PMCID: PMC10238294 DOI: 10.1007/s10266-022-00770-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 11/15/2022] [Indexed: 11/27/2022]
Abstract
This study aimed to assess the histological changes in the maxillary sinus and its adjacent dental tissues as pulp and periodontal ligament during pregnancy and investigate the role of estrogen hormone in these changes through the detection of estrogen receptors in these tissues. Sixteen adult female rats were used and were allocated into two groups: control non-pregnant (n = 8) and pregnant (n = 8). They were sacrificed and their heads were prepared for histological and immunohistochemical examination for estrogen receptor alpha. Our results revealed that pregnant rats revealed inflammatory changes in the sinus as thick epithelial lining, loss of cilia, swollen goblet cells, intraepithelial and interstitial edema. The lamina propria demonstrated considerable infiltration of inflammatory cells, glandular hyperplasia with vacuolar degeneration, and vascular congestion. Periodontal ligament and pulp revealed hyperemia and vascular congestion. Immunohistochemical examination of estrogen receptor alpha in the maxillary sinus and adjacent dental tissues (Periodontal ligament and pulp) in pregnant rats revealed a significant increase in its expression in all examined tissues. In conclusion, there was an increase in expression of ERα in the sinus mucosa and dental tissues during pregnancy together with slight inflammatory changes in these tissues. Hence, dentists should be aware of the effect of these changes on the pregnant women avoiding teeth extraction due to misdiagnosis of dental, periodontal or sinus pain after exclusion of true pathologies.
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Affiliation(s)
- Gihan S. Hassan
- Faculty of Dentistry, Tanta University, El-Giesh St., Tanta, Gharbia Egypt
| | - Mai B. Helal
- Faculty of Dentistry, Tanta University, El-Giesh St., Tanta, Gharbia Egypt
| | - H. F. Ibrahim
- Faculty of Dentistry, Tanta University, El-Giesh St., Tanta, Gharbia Egypt
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Lindfors OH, Ketola KS, Klockars TK, Leino TK, Sinkkonen ST. Sinus Barotraumas in Commercial Aircrew. Aerosp Med Hum Perform 2021; 92:857-863. [PMID: 34819211 DOI: 10.3357/amhp.5849.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND: Sinus barotraumas are a common condition in aviation medicine, sometimes compromising flight safety and even permanently grounding aircrew. Considering this and the ever-increasing amount of commercial aviation, a thorough examination is required.METHODS: In this survey study, an anonymous, electronic questionnaire was distributed to commercial aircrew of the three major commercial airlines operating in Finland (N 3799), covering 93% of the target population (i.e., all commercial aircrew operating in Finland, N 4083). Primary outcomes were self-reported prevalence, clinical characteristics, and health and occupational effects of sinus barotraumas in flight. Secondary outcomes were adjusted odds ratios (OR) for frequency of sinus barotraumas with respect to possible risk factors.RESULTS: Response rate was 47% (N 1789/3799), with 61% (N 1088) of the respondents having experienced sinus barotraumas in flight. Of those affected, 59% had used medications, 18% had undergone surgical procedures, and 53% had been on sick leave due to sinus barotraumas (38% during the last year) in flight. Factors associated with sinus barotraumas were female sex [OR, 2.47; 95% confidence interval (CI) 1.354.50] and a high number of upper respiratory tract infections (3 vs. <3 URTIs/yr: OR, 3.61; 95% CI 2.654.93).CONCLUSION: Sinus barotraumas were reported by 61% of commercial aircrew. They caused an increased need for medications, otorhinolaryngology-related surgical procedures, and sickness absence from flight duty. The possible risk factors were female sex and a high number of URTIs/yr.Lindfors OH, Ketola KS, Klockars TK, Leino TK, Sinkkonen ST. Sinus barotraumas in commercial aircrew. Aerosp Med Hum Perform. 2021; 92(11):857-863.
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Millas I, Duarte Barros M. Estrogen receptors and their roles in the immune and respiratory systems. Anat Rec (Hoboken) 2021; 304:1185-1193. [PMID: 33856123 DOI: 10.1002/ar.24612] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/27/2021] [Accepted: 02/04/2021] [Indexed: 01/08/2023]
Abstract
Estrogen is an important hormone for health in both genders. It is indispensable to glucose homeostasis, immune robustness, bone health, cardiovascular health, and neural functions. The main way that estrogen acts in the cells is through estrogen receptors (ERs). The presence of specific estrogen receptors is required for estrogen to have its characteristic ubiquitous action in almost all tissues. Estrogen receptor alpha (ERα) and estrogen receptor beta (ERβ) are the major isoforms of estrogen that are highly specific in humans and enable selective hormonal actions in different tissues. This article reviews some of the observed estrogen actions and effects in different tissues and cells through these specific receptors. This ubiquitous, almost ordinary hormone may reveal itself as a significant factor that helped us to better understand the complexity of the human immune system response against respiratory infections, including the COVID-19, and especially in the current state of this painful pandemic.
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Affiliation(s)
- Ieda Millas
- UNINOVE Curso de Medicina Ringgold Standard Institution-Medical School, Sao Paulo, Brazil
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Ban WW, Lee YJ, Lee SH, Jung JY, Baek BJ. Expression of Estrogen Receptor-alpha in Nasal Polyps and the Effects of Dexamethasone on Estrogen Receptor-alpha Expression in RPMI 2650 Cells. J Korean Med Sci 2020; 35:e420. [PMID: 33372422 PMCID: PMC7769702 DOI: 10.3346/jkms.2020.35.e420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 11/01/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Studies have reported that epithelial cell proliferation may be involved in the pathogenesis of nasal polyps (NPs). Estrogen receptor (ER)-α, one type of ER, is related to anti-inflammatory action and cell survival in certain tissues. In this study, we examined the presence or absence of ER-α in NPs and healthy inferior turbinate mucosae. We also investigated the effect of dexamethasone on ER-α expression, cell viability, and apoptosis in RPMI 2650 cells. METHODS Immunohistochemical staining and Western blot analysis were conducted to determine the expression of ER-α in 15 NPs and 15 healthy inferior turbinate mucosae. After treating RPMI 2650 cells with dexamethasone, ER-α expression was analyzed using Western blot analysis and cell viability was determined using the MTT assay. Western blot analysis and annexin V-phycoerythrin (PE) staining were used to examine apoptotic cell death. RESULTS Western blot analysis showed that ER-α expression was upregulated in 13 of the 15 NP tissues. Immunohistochemical staining for ER-α confirmed the results of the Western blot analysis. When RPMI 2650 cells were treated with dexamethasone, both ER-α expression and cell viability were decreased. Furthermore, the treatment of RPMI 2650 cells with dexamethasone increased apoptotic cell death, as shown by increased levels of BAX and cleaved caspase-3, decreased levels of Bcl-2, and an increased percentage of positive annexin V-PE stained cells. CONCLUSION ER-α expression was higher in NPs than in healthy inferior turbinate mucosae. When RPMI 2650 cells were treated with dexamethasone, ER-α expression was downregulated, cell viability decreased, and apoptosis increased. The decreased cell viability may be related, at least in part, to the decreased ER-α protein levels, which likely contributed to the induction of apoptotic cell death in RPMI 2650 cells.
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Affiliation(s)
- Won Woo Ban
- Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Yoon Jin Lee
- Department of Biochemistry, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Sang Han Lee
- Department of Biochemistry, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Jae Yeop Jung
- Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Byoung Joon Baek
- Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea.
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Injectable Vaginal Hydrogels as a Multi-Drug Carrier for Contraception. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9081638] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Injectable intravaginal hydrogels could deliver drugs systemically without hepatic first pass effect. This paper focuses on the contraceptive function of an injectable temperature-sensitive four-arm star-shaped poly(D,L-lactic-co-glycolic acid)-b-methoxy poly(ethylene glycol) (4sPLGA-mPEG) block copolymer hydrogels as a carrier of three drugs. In vitro controlled release profiles were investigated via HPLC, and it showed that the cumulative release amounts of indomethacin (IMC), gestodene (GSD), and ethinyl estradiol (EE) from copolymer hydrogels could be regulated by adjusting the lactide/glycolide (LA/GA) mol ratio. In addition, in vitro release profiles of IMC, GSD, and EE well corresponded to Higuchi model. The acute toxicity of copolymer hydrogels loaded with different dosage contents multi-drug was evaluated in vivo. As to the high dosage group, the uterus was hydropic at day 1 and ulcerated at day 5, followed with intestinal adhesion. Regarding the middle dosage group, no festering of tissues was observed and, blood coagulum existed in the uterus at different days. For low dosage group, no significant tissue necrosis was found. Finally, the antifertility experiments confirmed that hydrogels loaded with the multi-drug had an excellent contraceptive effect. The above results indicated that injectable copolymer hydrogel as a multi-drug carrier was promising as a novel contraception method.
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Lee K, Hong Y, Choi J, Lee SH, Kim TH. Life-long endogenous estrogen exposure is associated with prevalence of allergic rhinitis in postmenopausal women. Menopause 2019; 26:885-891. [PMID: 30889092 DOI: 10.1097/gme.0000000000001319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVES The aim of the study was to investigate the influence of life-long endogenous estrogen exposure on prevalence of chronic rhinitis including allergic rhinitis (AR) in the postmenopausal period. METHODS In this cross-sectional study, a total of 3,043 postmenopausal women who participated in the Korea National Health and Nutrition Examination Survey V were included. Participants with symptoms including sneezing, rhinorrhea, nasal obstruction, or nasal itching were considered to have chronic rhinitis. In subgroup analysis, the AR group comprised participants with rhinitis with positive findings in at least one of three specific immunoglobulin E. Univariable and multivariable logistic analyses were performed to evaluate the relationship between rhinitis and estrogen-related factors including age at menarche, age at menopause, age at first delivery, parity, and duration of breast-feeding. RESULTS Participants with chronic rhinitis (17.6%) had higher parity (odd ratio [OR] = 1.17, P = 0.0135) and shorter duration of breast-feeding (OR = 0.98, P = 0.0388) than controls. In subgroup analysis, participants with AR (7.1%) had younger age at menarche (OR = 0.56, P = 0.0028) and older age at menopause (OR = 1.42, P = 0.0060) after adjustment of confounding factors. There was a positive association between age at menopause and specific immunoglobulin E for both cockroach (OR = 1.38, P = 0.0132) and dogs (OR = 1.38, P = 0.0302). Longer postmenopausal duration was positively associated with cockroach allergen sensitization (OR = 1.25, P = 0.201). CONCLUSIONS Longer duration of reproductive period was associated with higher prevalence of AR and aeroallergen sensitization in the postmenopausal period. Moreover, cockroach allergen sensitization was associated with a longer postmenopausal period.
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Affiliation(s)
- Kijeong Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Korea University, Seoul, Korea
| | - Yeji Hong
- Department of Biostatistics, Korea University College of Medicine, Seoul, Korea
| | - Jimi Choi
- Department of Biostatistics, Korea University College of Medicine, Seoul, Korea
| | - Sang Hag Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Korea University, Seoul, Korea
| | - Tae Hoon Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Korea University, Seoul, Korea
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Ito K, Takamatsu K, Nohno K, Sugano A, Funayama S, Katsura K, Kaneko N, Ogawa M, Meurman JH, Inoue M. Factors associated with mucosal dryness in multiple regions and skin: A web-based study in women. J Obstet Gynaecol Res 2017; 43:880-886. [PMID: 28422418 DOI: 10.1111/jog.13290] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 12/19/2016] [Accepted: 12/25/2016] [Indexed: 11/28/2022]
Abstract
AIM We hypothesized that feeling mucosal dryness in one body region and the skin may be associated with dryness in other regions and that there are common background factors for dryness. In an earlier web-based survey, we reported prevalence figures of dry eyes, nose, mouth, skin, and vagina. In the present study, additional analyses were made to investigate the factors associated with dryness in each region, and simultaneous dryness in multiple regions. METHODS A web-based questionnaire was completed by 310 Japanese women. The questions included dryness of the eyes, nose, mouth, vagina, and skin. Menopausal and other symptoms were also addressed. Multiple logistic regression modeling was performed to identify factors associated with dryness in each region and in multiple dry regions. RESULTS Dry eyes were associated with dryness in the nose and with headache; dry nose was associated with dryness in the vagina and eyes; dry mouth was associated with sticky mouth symptom and dryness of the nose; dry skin was associated with use of xerogenic medications and vaginal discharge; and dryness of the vagina was associated with vaginal itchiness and dry nose. Vaginal discharge (odds ratio, 9.64; 95% confidence interval, 3.15-29.51) and sticky mouth (odds ratio, 6.35; 95% confidence interval, 1.29-31.29) were further associated with dryness in multiple regions. CONCLUSION The present results confirmed our study hypothesis by showing that dryness in one region was clearly associated with that in another or in multiple regions. The result implies the need for holistic diagnosis and counseling for patients with dryness complaints.
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Affiliation(s)
- Kayoko Ito
- Oral Rehabilitation, Niigata University Medical and Dental Hospital, Niigata City, Japan
| | - Kiyoshi Takamatsu
- Department of Obstetrics and Gynecology, Tokyo Dental College Ichikawa General Hospital, Ichikawa City, Japan
| | - Kaname Nohno
- Division of Preventive Dentistry, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan
| | - Aki Sugano
- Tokyo Dental College School of Dental Hygiene, Tokyo, Japan
| | - Saori Funayama
- Oral Rehabilitation, Niigata University Medical and Dental Hospital, Niigata City, Japan
| | - Kouji Katsura
- Oral and Maxillofacial Radiology, Surgical care, Niigata University Medical and Dental Hospital, Niigata City, Japan
| | - Noboru Kaneko
- Division of Preventive Dentistry, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan
| | - Mariko Ogawa
- Department of Obstetrics and Gynecology, Tokyo Dental College Ichikawa General Hospital, Ichikawa City, Japan
| | - Jukka H Meurman
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Makoto Inoue
- Division of Dysphagia Rehabilitation, Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan
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Kollndorfer K, Ohrenberger I, Schöpf V. Contraceptive Use Affects Overall Olfactory Performance: Investigation of Estradiol Dosage and Duration of Intake. PLoS One 2016; 11:e0167520. [PMID: 28002464 PMCID: PMC5176159 DOI: 10.1371/journal.pone.0167520] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 11/15/2016] [Indexed: 11/22/2022] Open
Abstract
The influence of female sex steroids on cognitive performance and sensory perception has been investigated for decades. However, previous research that studied olfaction revealed inconsistent results. The main aim of this study was to investigate the effects of different ethinyl estradiol (EE) concentrations of oral contraceptives and duration of intake on olfactory function. Forty-two healthy women, with regular intake of either high or low EE dosage over at least one year and up to 15 years participated in this study. Results revealed a significant concordance between a priori categorization in the two groups with high and low EE dosage and data-driven hierarchical clustering (p = 0.008). Furthermore, significantly higher olfactory performance was observed in women using low-dose products compared to women using high-dosed products (p = 0.019). These findings indicate different effects of pill use with regard to EE concentration. We therefore strongly recommend the acquisition of information about EE dosage of oral contraceptives to reduce potential confounding factors when investigating sensory systems.
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Affiliation(s)
- Kathrin Kollndorfer
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Iris Ohrenberger
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Veronika Schöpf
- Institute of Psychology, University of Graz, Graz, Austria
- BioTechMed, Graz, Austria
- * E-mail:
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Peretz J, Pekosz A, Lane AP, Klein SL. Estrogenic compounds reduce influenza A virus replication in primary human nasal epithelial cells derived from female, but not male, donors. Am J Physiol Lung Cell Mol Physiol 2016; 310:L415-25. [PMID: 26684252 PMCID: PMC4773846 DOI: 10.1152/ajplung.00398.2015] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 12/11/2015] [Indexed: 11/22/2022] Open
Abstract
Influenza causes an acute infection characterized by virus replication in respiratory epithelial cells. The severity of influenza and other respiratory diseases changes over the life course and during pregnancy in women, suggesting that sex steroid hormones, such as estrogens, may be involved. Using primary, differentiated human nasal epithelial cell (hNEC) cultures from adult male and female donors, we exposed cultures to the endogenous 17β-estradiol (E2) or select estrogen receptor modulators (SERMs) and then infected cultures with a seasonal influenza A virus (IAV) to determine whether estrogenic signaling could affect the outcome of IAV infection and whether these effects were sex dependent. Estradiol, raloxifene, and bisphenol A decreased IAV titers in hNECs from female, but not male, donors. The estrogenic decrease in viral titer was dependent on the genomic estrogen receptor-2 (ESR2) as neither genomic ESR1 nor nongenomic GPR30 was expressed in hNEC cultures and addition of the genomic ER antagonist ICI 182,780 reversed the antiviral effects of E2. Treatment of hNECs with E2 had no effect on interferon or chemokine secretion but significantly downregulated cell metabolic processes, including genes that encode for zinc finger proteins, many of which contain estrogen response elements in their promoters. These data provide novel insights into the cellular and molecular mechanisms of how natural and synthetic estrogens impact IAV infection in respiratory epithelial cells derived from humans.
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Affiliation(s)
- Jackye Peretz
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Andrew Pekosz
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Andrew P Lane
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Sabra L Klein
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland; and
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Olival Costa H, de Castro Neto NP, Mara Rossi L, Millas I, Coelho F, da Silva L. Influence of estradiol administration on estrogen receptors of nasal mucosa: an experimental study on guinea pigs. Braz J Otorhinolaryngol 2014; 80:18-23. [PMID: 24626887 PMCID: PMC9443962 DOI: 10.5935/1808-8694.20140006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Accepted: 10/12/2013] [Indexed: 12/04/2022] Open
Abstract
Introdução A literatura indica uma correlação entre estrogênio elevado no soro e sintomas nasais ou alterações inflamatórias na mucosa nasal. Os receptores de estrogênio tendem a ser controlados por retroalimentação negativa, para evitar um estímulo nocivo sobre as diversas funções corporais em períodos de hiperestrogenismo. Propomos uma hipótese em que os mecanismos que regulam a expressão de receptores de estradiol na mucosa nasal estão ausentes em alguns pacientes, e a sua concentração permanece estável mesmo em períodos de elevada concentração sérica hormonal, o que pode conduzir a sintomas locais na mucosa nasal. Desenho do estudo estudo prospectivo experimental. Objetivo Determinar se altos níveis de estrogênio induzem à redução no número de receptores de estrogênio na mucosa nasal. Material e método Trinta cobaias foram submetidas à biópsia da concha nasal, recebendo 0,5 ml de cipionato de estradiol por via intraperitoneal por trinta dias consecutivos. Em seguida foram obtidas amostras da concha nasal contralateral. As análises imuno-histoquímicas dos receptores de estrógeno foram realizadas antes e depois da hormonioterapia. Resultados O grupo pós-tratamento mostrou uma redução da expressão dos receptores (p = 5,2726-5). Conclusão Redução na expressão do receptor de estrogênio nasal foi encontrada após trinta dias de administração de estradiol. © 2014 Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. Publicado por Elsevier Editora Ltda. Todos os direitos reservados.
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