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Montironi ID, Campra NA, Arsaute S, Cecchini ME, Raviolo JM, Vanden Braber N, Barrios B, Montenegro M, Correa S, Grosso MC, Mañas F, Bellingeri RV, Cariddi LN. Minthostachys verticillata Griseb (Epling.) (Lamiaceae) essential oil orally administered modulates gastrointestinal immunological and oxidative parameters in mice. J Ethnopharmacol 2022; 290:115078. [PMID: 35157954 DOI: 10.1016/j.jep.2022.115078] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/02/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Minthostachys verticillata (Griseb.) Epling (Lamiaceae) is a plant used in folk medicine for digestive or respiratory disorders. In addition, it is incorporated as condiment, in foods, as beverage flavoring or mate. The ethnopharmacological interest of M. verticillata resides in its essential oil (EO). Part of group has demonstrated the immunomodulatory ability of EO giving this oil a biological potential not known until that moment and conducted studies to evaluate their possible application in diseases of veterinary interest. However, the immunomodulatory effects of EO administered orally have not been fully characterized. AIM OF THE STUDY This study evaluated the impact of EO oral administration on gastrointestinal and immune health through measurement of immunological and oxidative parameters in mice. MATERIAL AND METHODS The EO was extracted from the leaves, slender stems and flowers of M. verticillata by hydrodistillation and chemical analyzed by gas chromatography-mass spectrometry (GC-MS). Prior to in vivo study, the cytotoxic effect of EO was determined using the human colon carcinoma Caco-2 cell line. For in vivo study, three groups of male Balb/c mice (n = 3) were orally administered with saline solution (control group) and EO (5 or 10 mg/kg/day) during 10 consecutive days. Subsequently, histological and hematological parameters, cytokines production, oxidative markers and CD4+ and CD8+ T cells were evaluated. RESULTS The chemical analysis of EO revealed the presence of a high content of monoterpenes, being the main pulegone (76.12%) and menthone (14.28%). The EO oral administration improved mice growth performance and modulated systemic adaptive immune response by increasing in the total leukocyte number. A high percentage of CD4+ T cells were observed whereas the number of CD8+ T cells was not altered. EO did not alter the morpho-physiology of intestine and improved total antioxidant capacity by decreasing MDA concentrations. In addition, EO decreased the IL-6 levels and increased in the IL-4 and IL-10 concentrations. CONCLUSION Results indicate that M. verticillata EO modulate inflammatory and oxidative parameters constituting a natural alternative which could be applied to improve gastrointestinal and immune functionality in animals.
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Affiliation(s)
- Ivana D Montironi
- Cátedra de Farmacología, Facultad de Agronomía y Veterinaria. Universidad Nacional de Río Cuarto, Río Cuarto, 5800, Córdoba, Argentina
| | - Noelia A Campra
- Universidad Nacional de Río Cuarto, Facultad de Ciencias Exactas Físico-Químicas y Naturales. Departamento de Microbiología e Inmunología, Río Cuarto, 5800, Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Biotecnología Ambiental y Salud (INBIAS), Río Cuarto, 5800, Córdoba, Argentina
| | - Sofía Arsaute
- Universidad Nacional de Río Cuarto, Facultad de Ciencias Exactas Físico-Químicas y Naturales. Departamento de Microbiología e Inmunología, Río Cuarto, 5800, Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Biotecnología Ambiental y Salud (INBIAS), Río Cuarto, 5800, Córdoba, Argentina
| | - María Eugenia Cecchini
- Universidad Nacional de Río Cuarto, Facultad de Ciencias Exactas Físico-Químicas y Naturales. Departamento de Microbiología e Inmunología, Río Cuarto, 5800, Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Biotecnología Ambiental y Salud (INBIAS), Río Cuarto, 5800, Córdoba, Argentina
| | - José M Raviolo
- Universidad Nacional de Río Cuarto, Facultad de Agronomía y Veterinaria, Departamento de Producción Animal, Río Cuarto, 5800, Córdoba, Argentina
| | - Noelia Vanden Braber
- Universidad Nacional de Villa María, Centro de Investigaciones y Transferencia de Villa María (CITVM-CONICET), Villa María, 5220, Córdoba, Argentina
| | - Bibiana Barrios
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Bioquímica Clínica, Córdoba, 5000, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Córdoba, 5000, Argentina
| | - Mariana Montenegro
- Universidad Nacional de Villa María, Centro de Investigaciones y Transferencia de Villa María (CITVM-CONICET), Villa María, 5220, Córdoba, Argentina
| | - Silvia Correa
- Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Departamento de Bioquímica Clínica, Córdoba, 5000, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Córdoba, 5000, Argentina
| | - María C Grosso
- Universidad Nacional de Río Cuarto, Facultad de Agronomía y Veterinaria, Departamento de Anatomía Animal, Río Cuarto, 5800, Córdoba, Argentina
| | - Fernando Mañas
- Cátedra de Farmacología, Facultad de Agronomía y Veterinaria. Universidad Nacional de Río Cuarto, Río Cuarto, 5800, Córdoba, Argentina
| | - Romina V Bellingeri
- Universidad Nacional de Río Cuarto, Facultad de Agronomía y Veterinaria, Departamento de Anatomía Animal, Río Cuarto, 5800, Córdoba, Argentina; Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Río Cuarto, 5800, Córdoba, Argentina
| | - Laura Noelia Cariddi
- Universidad Nacional de Río Cuarto, Facultad de Ciencias Exactas Físico-Químicas y Naturales. Departamento de Microbiología e Inmunología, Río Cuarto, 5800, Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Biotecnología Ambiental y Salud (INBIAS), Río Cuarto, 5800, Córdoba, Argentina.
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John V, Barrios B, Udayan S, Floyd A, Schill EM, McDonald KG, Blumberg RS, Newberry RD. Goblet cells regulate expansion of colonic iNKT cells in CD1d-dependent manner. The Journal of Immunology 2022. [DOI: 10.4049/jimmunol.208.supp.115.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Invariant natural killer T (iNKT) cells are innate-like T cells that secrete a wide array of cytokines and immune mediators. These cells recognize self or microbial ligands presented by cells expressing CD1d, and can contribute to host protection or/and pathogenesis during intestinal inflammation. The colonic iNKT cell population is established in early life under the influence of the microbiota and current understanding is that this iNKT cells are not manipulable in later life. Previous studies have identified that goblet cell associated passages (GAPs) play a role in luminal antigen delivery and the induction and maintenance of peripherally induced T regulatory cells in the steady state. Colonic GAPs are largely absent in adult mice due to goblet cell (GC) microbial sensing, which inhibits GAP formation. We hypothesized, that when present, colonic GAPs may deliver glycolipids to stimulate colonic iNKT cells. We found that the glycolipids can be delivered through GAPs and that inducing colonic GAPs in adult mice using pharmacological inhibitors or transgenic mouse models resulted in significant iNKT cell expansion. Further deletion of CD1d on GCs inhibited iNKT cell expansion suggesting a role for colonic GCs in presenting glycolipids to iNKT cells. Single cell RNA sequencing of sorted colonic iNKT cells showed significantly expanded iNKT2 and iNKT1 subsets after colonic GAP induction. Furthermore, the iNKT cells expanding after opening colonic GAPs were protective in DSS-induced colitis. Our findings suggest that the GAP function and CD1d expression by GCs plays a role in modulating colonic iNKT cell subsets in adulthood and can be protective in some colitis models.
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Affiliation(s)
- Vini John
- 1Gastroenterology, Washington university school of medicine in St.Louis
| | - Bibiana Barrios
- 1Gastroenterology, Washington university school of medicine in St.Louis
| | - Sreeram Udayan
- 1Gastroenterology, Washington university school of medicine in St.Louis
| | - Alexandria Floyd
- 1Gastroenterology, Washington university school of medicine in St.Louis
| | - Ellen M Schill
- 1Gastroenterology, Washington university school of medicine in St.Louis
| | - Keely G McDonald
- 1Gastroenterology, Washington university school of medicine in St.Louis
| | - Richard S Blumberg
- 2Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School
| | - Rodney D Newberry
- 1Gastroenterology, Washington university school of medicine in St.Louis
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Aldana A, Barrios B, Strumia M, Correa S, Martinelli M. Dendronization of chitosan films: Surface characterization and biological activity. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Gómez Palacios A, Barrios B, Gutiérrez MT, Expósito A, Gómez Zabala J, Roca B, Pérez de Villarreal P, Ruiz S, Escobar A, Iturburu I, Méndez J. [Morbidity and costs in complete thyroidectomies. Improvement in Value of the Process by a change in the management]. ACTA ACUST UNITED AC 2011; 27:161-8. [PMID: 22137200 DOI: 10.1016/j.cali.2011.09.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Revised: 09/30/2011] [Accepted: 09/30/2011] [Indexed: 12/01/2022]
Abstract
OBJECTIVES 1) To present the postoperative morbidity of complete thyroidectomies and the results of their clinical management and costs obtained after surgery. 2) To compare the results obtained for the morbidity and costs in the complete thyroidectomy Process, after the management changes introduced by the Endocrine Surgical Unit (ESU). 3) To define whether these changes improve the Value (benefit/cost ratio) of the Process. MATERIAL AND METHODS Prospective study of cohorts conducted on 529 complete thyroidectomies performed between 1998 and 2011. We present their clinical-pathological characteristics and we compare the clinical and management results obtained after surgery in 2 time periods: 1998-2006 without ESU (group 1, 205 patients) and 2007-2011 with ESU (group 2, 324 patients). The clinical results and the possible benefits are assessed by studying the morbimortality (recurrent lesions, hypocalcaemia [<8 mg/dl], suffocative haematomas and bleeding), and those of management, for the evaluation of the use of operating room time, the average stay and the total cost of the Process. The statistical comparison study was made using Student t test, for the comparison of means and the Chi(2) to compare percentages, accepting P<.05 as significant. RESULTS The global percentage of transient recurrent dysfunctions (TRD) was 6%, and for definitive recurrent paralysis (DRP) it was 1.5%. Hypocalcaemia, at 24 hours was 54.6%, at one month 7%, at six months 6.2% and that of definitive hypoparathyroidism 1.3%. There were 2.8% of suffocative haematomas and 2% adverse effects. The mean surgical time was 98 minutes, and the average stay was 3.66 days. In the comparison of results of the groups, the ESU improved the TRD index by nearly 7 points (10.2 vs. 3.4%, P=.002), that of DRP by 1.5 (2.4 vs. 0.4%; P=.3) until reaching under 1%. The figures on bleeding at 24 hours (53 vs. 44 cc; P=.002) and 48 hours (23 to 17 cc; P<.001), the rate of haematomas by another 6 points (6.3 vs. 0.6%; P<.001), and that of hypocalcaemia at 24 hours (P=.01). The average stay also improved (4.79 vs. 2.94 days; P<.001), the use of operating room time (reduced by 20 minutes/operation; P<.001), the total cost of the Process, decreasing by more than € 2,000/Process (P<.001), and produced a total savings for the hospital in the period of study of € 665,820. CONCLUSIONS 1) The global results (post-operative morbidity) of our total thyroidectomies are within the quality standards. 2) The surgical specialisation and the changes introduced by the ESU improved the clinical results (greater benefit) and those of management, cutting down the average stay and the operating room usage time and decreasing costs. 3) The change in management increased the Value of the Process.
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Affiliation(s)
- A Gómez Palacios
- Unidad de Cirugía Endocrina, Servicio de Cirugía General y Aparato Digestivo, Hospital Universitario de Basurto, Bilbao, España.
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Gómez Palacios A, Taibo M, Gutiérrez M, Gómez J, Gómez Zabala J, Barrios B, Escobar A, Iturburu I. Respuesta de los autores. Cir Esp 2006. [DOI: 10.1016/s0009-739x(06)70953-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gómez-Palacios A, Taibo MA, Gutiérrez MT, Gómez P, Gómez-Zabala J, Barrios B, Escobar A, Iturburu I. [Intraoperative intact parathyroid hormone determination as a predictive factor of hyperparathyroidism resolution]. Cir Esp 2006; 79:114-9. [PMID: 16539950 DOI: 10.1016/s0009-739x(06)70830-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
INTRODUCTION The objectives of this study were: a) to evaluate the effectiveness of intraoperative intact parathyroid hormone (PTHi) determination as a marker of hyperparathyroidism resolution; b) to establish the minimum number of blood samples required; and c) to determine whether cervical manipulation increases baseline PTHi levels. PATIENTS AND METHOD We performed a prospective study in 45 patients. Three intraoperative blood PTHi determinations were performed: at baseline and at 10 and 25 minutes after excising the lesion. To analyze the effects of cervical manipulation, in 19 patients, 2 further determinations were made after 2 minutes of massage on both sides of the neck. A decrease of > 50% in PTHi values between postexeresis samples and the baseline sample (gradient > 50%) was used as diagnostic and therapeutic criteria and normalization of calcemia was used as a criteria for complete resolution. RESULTS Whenever the lesion causing hyperparathyroidism was extirpated, PTHi levels decreased at 10 and 25 minutes after exeresis. This decrease was predictive of complete resolution when the gradient was > 50. Cervical manipulation (massage) did not increase PTHi values. In patients with complete resolution, blood calcium levels also returned to normal. CONCLUSIONS 1. Intraoperative PTHi determination with a gradient > 50 is an excellent prognostic marker of resolution. 2. Only 2 PTHi samples are required: one at baseline and another at 10 minutes after exeresis. 3. Preoperative cervical manipulation does not increase PTHi values.
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Affiliation(s)
- A Gómez-Palacios
- Servicio de Cirugía General, Hospital de Basurto, Bilbao, Spain.
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Quintana JM, Arostegui I, Oribe V, López de Tejada I, Barrios B, Garay I. Influence of age and gender on quality-of-life outcomes after cholecystectomy. Qual Life Res 2005; 14:815-25. [PMID: 16022074 DOI: 10.1007/s11136-004-1259-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Few studies have assessed the role of sociodemographic characteristics on outcomes after a cholecystectomy. Our goal was to evaluate the influence of age and gender on the health related quality of life (HRQoL) changes after cholecystectomy in this prospective observational study of consecutive patients undergoing cholecystectomy. Patients completed the SF-36 and the Gastrointestinal Quality of Life Index (GIQLI) before intervention and 3 months later. The influence of age, gender, and the pre-intervention health status on the HRQoL changes was studied by multivariate regression analysis. Older patients had poorer HRQoL and their post-intervention improvement was lower than younger patients. Compared with men, women had worse health status before the intervention measured with both HRQoL tools. In the unadjusted analysis women had greater improvements than men, measured by the GIQLI, but not with the SF-36. However, after controlling for other relevant variables, the SF-36 measured lower improvements in women more often than men, but the GIQLI showed similar results for both. For men and women, the lower the pre-intervention health status the higher the post-operative improvement. Women presented with worse health status before the intervention and less improvement post-operatively after adjustments. The pre-intervention health status has an important role explaining changes after the intervention. A gender-related difference exists between what a generic and a disease-specific HRQoL instrument captures when measuring HRQoL improvement after cholecystectomy.
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Affiliation(s)
- J M Quintana
- Unidad de Investigación, Hospital de Galdakao, Galdakao, Spain.
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Quintana JM, Cabriada J, de Tejada IL, Varona M, Oribe V, Barrios B, Aróstegui I, Bilbao A. Development of explicit criteria for cholecystectomy. Qual Saf Health Care 2002; 11:320-6. [PMID: 12468691 PMCID: PMC1757992 DOI: 10.1136/qhc.11.4.320] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE Consensus development techniques were used in the late 1980s to create explicit criteria for the appropriateness of cholecystectomy. New diagnostic and treatment techniques have been developed in the last decade, so an updated appropriateness of indications tool was developed for cholecystectomy in patients with non-malignant diseases. The validity and reliability of panel results using this tool were tested. METHODS Criteria were developed using a modified Delphi panel judgement process. The level of agreement between the panelists (six gastroenterologists and six surgeons) was analysed and the ratings were compared with those of a second different panel using weighted kappa statistics. RESULTS The results of the main panel were presented as a decision tree. Of the 210 scenarios evaluated by the main panel in the second round, 51% were found appropriate, 26% uncertain, and 23% inappropriate. Agreement was achieved in 54% of the scenarios and disagreement in 3%. Although the gastroenterologists tended to score fewer scenarios as appropriate, as a group they did not differ from the surgeons. Comparison of the ratings of the main panel with those of a second panel resulted in a weighted kappa statistic of 0.75. CONCLUSIONS The parameters tested showed acceptable validity and reliability results for an evaluation tool. These results support the use of this algorithm as a screening tool for assessing the appropriateness of cholecystectomy.
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Affiliation(s)
- J M Quintana
- Unidad de Investigación, Hospital de Galdakao, Galdakao, Vizcaya, Spain.
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Quintana JM, Cabriada J, López de Tejada I, Varona M, Oribe V, Barrios B, Perdigo L, Bilbao A. Translation and validation of the gastrointestinal Quality of Life Index (GIQLI). Rev Esp Enferm Dig 2001; 93:693-706. [PMID: 11995369] [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] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
OBJECTIVE To translate into Spanish and validate the GIQLI, a health related quality of life questionnaire for gastrointestinal diseases. PATIENTS AND METHODS All patients with a diagnosis of cholelithiasis, on waiting list to undergo a cholecystectomy, from three public hospitals, were included in this study. All patients were requested to fulfill the GIQLI and the SF-36 before and three months after the intervention. The validity, reliability and responsiveness of the GIQLI were studied. RESULTS 353 patients completed both questionnaires before and after the intervention. The GIQLI was able to discriminate among levels of severity, measured by the number of previous biliary colics, between those with less (total GIQLI score: 102.7) or more than 6 colics (89.2). GIQLI domains correlated with those of the SF-36 (Pearson correlation coefficient from 0.58 to 0.79). Internal consistency of its domains was good (Cronbach alpha from 0.70 to 0.86). Responsiveness, measured by the standardized response mean, of the GIQLI ranged between 0.45 to 0.82, better than the generic questionnaire SF-36 (0.20 a 0.56). CONCLUSIONS GIQLI translation into Spanish provides with a new tool to measure quality of life on gastrointestinal diseases. Our results support the validity, reliability and responsiveness of the GIQLI Spanish version.
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Affiliation(s)
- J M Quintana
- Research Unit, Galdakao Hospital, Barrio Labeaga s/n. 48960 Galdakao, Vizcaya, Spain.
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Abstract
In this study we report the mutation analysis performed in Cuban PKU patients using DGGE and direct sequencing. Sixteen different mutations have been detected, which account for 91% of the total mutant alleles. Haplotype analysis and genealogical data support the European (mainly Spanish) origin of the mutations. Two mutations were found at unexpectedly high frequencies, E280K and R261Q, possibly due to consanguinity and genetic drift, among other factors. Hum Mutat 18:252, 2001.
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Affiliation(s)
- L R Desviat
- Centro de Biología Molecular "Severo Ochoa" CSIC-UAM, Madrid, Spain
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Pérez-Pé R, Barrios B, Muiño-Blanco T, Cebrián-Pérez JA. Seasonal differences in ram seminal plasma revealed by partition in an aqueous two-phase system. J Chromatogr B Biomed Sci Appl 2001; 760:113-21. [PMID: 11522053 DOI: 10.1016/s0378-4347(01)00259-6] [Citation(s) in RCA: 34] [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] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Seminal plasma plays an important role in maturation of spermatozoa through hormonal, enzymatic and surface-modifying events. We have previously shown that adsorption of seminal plasma proteins (SPPs) to the sperm cell surface partially restores the functional characteristics of damaged spermatozoa, reproducing those of live cells. In the present report, we investigate the hypothesis that seasonal differences in seminal plasma could affect its ability to recover membrane integrity of cold-shocked sperm. The effect of seminal plasma proteins, obtained in breeding (bsSPPs) and non-breeding (nbsSPPs) season, on cold-shocked ram spermatozoa previously freed from seminal plasma, was analysed by centrifugal counter-current distribution (CCCD) in an aqueous two-phase system as well as membrane integrity determination by fluorescence markers. Cold-shock treatment greatly lowered cell viability in both breeding and non-breeding season spermatozoa. The cold-shocked sperm viability obtained was approximately 20%. The loss of heterogeneity and the decrease in viability revealed by CCCD analysis was reversed by the addition of increasing amounts of bsSPP, which induced restoration of the surface characteristics of viable-like spermatozoa, as well as an increase in the number of recovered viable sperm. However, this restoring effect was much lower when nbsSPPs were added, even in a sixfold higher concentration than used with bsSPPs. Incubation of cold-shocked cells with both kinds of proteins performed in both seasonal periods, showed that the recovering effect was related to the season when the plasma sample was obtained rather than to the semen season. The addition of bsSPPs to cold-shocked sperm accounted for a nearly 50% reversion for both studied breeding seasons. However, the reversion percentages obtained with nbsSPPs were significantly lower (P<0.05) than those found with bsSPPs in both studied seasonal periods. This different reversion capacity of bsSPPs and nbsSPPs was related to a different protein composition, as revealed by comparative sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis. The bands of 20, 21, 24, 36 and 67 kDa of the bsSP sample profile decreased in winter-spring SP, and were even less intensely stained in summer SP. Densitometric analysis of the stained gel patterns allows automatic comparison among the separated bands, and revealed an important decrease in the content of several bands. The 21.5 kDa band showed the highest decrease, lowering to 14% in June-August plasma with respect to the value obtained in September-December plasma.
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Affiliation(s)
- R Pérez-Pé
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Universidad de Zaragoza, Spain
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Barrios B, Pérez-Pé R, Gallego M, Tato A, Osada J, Muiño-Blanco T, Cebrián-Pérez JA. Seminal plasma proteins revert the cold-shock damage on ram sperm membrane. Biol Reprod 2000; 63:1531-7. [PMID: 11058562 DOI: 10.1095/biolreprod63.5.1531] [Citation(s) in RCA: 144] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Ejaculated ram spermatozoa, freed from seminal plasma by a dextran/swim-up procedure and exposed to cold shock, were incubated with ram seminal plasma proteins and analyzed by fluorescence markers and scanning electron microscopy. Seminal plasma proteins bound to the sperm plasma membrane modified the functional characteristics of damaged spermatozoa, reproducing those of live cells. Scanning electron microscopy showed that the dramatic structural damage induced by cooling reverted after incubation with seminal plasma proteins. Assessment of membrane integrity by fluorescence markers also indicated a restoration of intact-membrane cells. This protein adsorption is a concentration-dependent process that induces cell surface restoration in relation to the amount of protein in the incubation medium. Fractionation of ram seminal plasma proteins by exclusion chromatography provided three fractions able to reverse the cold shock effect. Scanning electron microscopy also confirmed the high activity of one fraction, because approximately 50% of cold-shocked sperm plasma membrane surface was restored to its original appearance after incubation. Differences in composition between the three separated fractions mainly resulted from one major band of approximately 20 kDa, which must be responsible for recovering the sperm membrane permeability characteristic of a live cell.
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Affiliation(s)
- B Barrios
- Department of Biochemistry and Molecular and Cell Biology, School of Veterinary Medicine, University of Zaragoza, 50013 Zaragoza, Spain
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Lantigua-Cruz A, Mora F, Arechaederra M, Rojas I, Morales E, Rodríguez H, Viñas C, Noa CE, Barrios B. Etiological Characterization of 512 Severely Mentally Retarded Institutionalized Patients in Havana. Public Health Genomics 2000; 2:184-9. [PMID: 14960840 DOI: 10.1159/000016210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To investigate etiological factors in severe mental retardation (SMR). METHODS An etiological study is presented of 512 SMR patients in five specialized institutions in Havana. RESULTS Prenatal, perinatal and postnatal causes were apparent in 58.0, 24.8 and 11.1% of the patients, respectively; infantile psychosis was determined in only 0.4%. The remaining 5.6% were classified as having SMR of undeterminable origin, i.e. patients with apparently normal pre-, peri- and postnatal histories who had neither dysmorphism nor affected first-degree relatives, and had a normal karyotype and metabolic screen. Among prenatal causes, genetic factors were the most frequent (82.8%), while environmental factors were apparent in only 5.3% of these cases. Of the cases with prenatal genetic etiology, chromosomal aberrations were present in 86.5% (Down syndrome 96.2% and 3.7% other chromosomal aberrations), monogenic disorders in 11.3% [neurocutaneous diseases (32.1%) and fragile X syndrome (25%) were the most frequent], and multifactorial disorders in 2.0%. Thirty-five patients (11.7%) presented multiple congenital anomalies of 'prenatal unknown' causes. The latter group may include unidentifiable chromosomal aberrations, uniparental disomy, de novo mutations and multifactorial or teratogenic factors. CONCLUSION Accurate determination of the etiology of SMR is important not only for genetic counseling purposes, but also in identifying prenatal events which make infants more vulnerable to perinatal risk factors.
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Affiliation(s)
- A Lantigua-Cruz
- National Center of Medical Genetics, Higher Institute of Medical Sciences, Havana, Cuba
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Griffin RJ, Okajima K, Barrios B, Song CW. Mild temperature hyperthermia combined with carbogen breathing increases tumor partial pressure of oxygen (pO2) and radiosensitivity. Cancer Res 1996; 56:5590-3. [PMID: 8971160] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The partial pressure of oxygen (pO2) of FSaII tumors grown in the leg of C3H mice significantly improved when the tumors were heated by immersing the tumor-bearing legs in a water bath at 41.5 degrees C for 60 min. The tumor pO2 also substantially increased when the tumor-bearing mice breathed carbogen (95% O2:5% CO2). Additionally, mild hyperthermia followed by carbogen breathing further increased the tumor pO2 and increased radiation cytotoxicity as assessed by the in vivo/in vitro excision assay for surviving FSaII cells. It was concluded that mild hyperthermia in combination with carbogen breathing is potentially useful to reoxygenate radioresistant hypoxic cells and improve the radiotherapy of human tumors.
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Affiliation(s)
- R J Griffin
- Department of Therapeutic Radiology-Radiation Oncology, University of Minnesota Medical School, Minneapolis 55455, USA
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