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Villar L, Tralik B, Diamond MP, Allon M, Maldonado I, Dozortsev DI. Ovulation and birth after administration of progesterone trigger-two case reports. J Assist Reprod Genet 2023; 40:1037-1044. [PMID: 36808579 PMCID: PMC10239420 DOI: 10.1007/s10815-023-02750-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 01/05/2023] [Accepted: 02/07/2023] [Indexed: 02/23/2023] Open
Abstract
PURPOSE To determine whether using progesterone as a trigger of a gonadotropin surge will induce ovulation and a competent corpus luteum. METHODS Patients were administered 5 or 10 mg of progesterone intramuscularly when the leading follicle reached preovulatory size. RESULTS We demonstrate that progesterone injections result in classical ultrasonographic hallmarks of ovulation about 48 h later and the formation of a corpus luteum competent to support pregnancy. CONCLUSION Our results support further exploration of using progesterone to trigger a gonadotropin surge in assisted human reproduction.
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Affiliation(s)
- Lina Villar
- CITMER Medicina Reproductiva, Mexico City, Mexico
| | - Beata Tralik
- Advanced Fertility Center of Texas, Houston, TX, USA
| | - Michael P Diamond
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - Michael Allon
- Advanced Fertility Center of Texas, Houston, TX, USA
| | | | - Dmitri I Dozortsev
- CITMER Medicina Reproductiva, Mexico City, Mexico.
- Advanced Fertility Center of Texas, Houston, TX, USA.
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Villar L, Hegarty R, Van Tol M, Godwin I, Nolan J. Dietary nitrate metabolism and enteric methane mitigation in sheep consuming a protein-deficient diet. Anim Prod Sci 2020. [DOI: 10.1071/an18632] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
It was hypothesised that the inclusion of nitrate (NO3–) or cysteamine hydrochloride (CSH) in a protein deficient diet (4.8% crude protein; CP) would improve the productivity of sheep while reducing enteric methane (CH4) emissions. A complete randomised designed experiment was conducted with yearling Merino sheep (n = 24) consuming a protein-deficient wheaten chaff control diet (CON) alone or supplemented with 1.8% nitrate (NO3–; DM basis), 0.098% urea (Ur, DM basis) or 80 mg cysteamine hydrochloride/kg liveweight (CSH). Feed intake, CH4 emissions, volatile fatty acids (VFA), digesta kinetics and NO3–, nitrite (NO2–) and urea concentrations in plasma, saliva and urine samples were measured. There was no dietary effect on animal performance or digesta kinetics (P > 0.05), but adding NO3– to the CON diet reduced methane yield (MY) by 26% (P = 0.01). Nitrate supplementation increased blood MetHb, plasma NO3– and NO2– concentrations (P < 0.05), but there was no indication of NO2– toxicity. Overall, salivary NO3– concentration was greater than plasma NO3– (P < 0.05), indicating that NO3– was concentrated into saliva. Our results confirm the role of NO3– as an effective additive to reduce CH4 emissions, even in a highly protein-deficient diet and as a source of additional nitrogen (N) for microbial protein synthesis via N-recycling into saliva and the gut. The role of CSH as an additive in low quality diets for improving animal performance and reducing CH4 emissions is still unclear.
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Villar L, Almada L, Silva IB, Torigoe D, Souza B, Reis R. QUILOTÓRAX COMO MANIFESTAÇÃO ÚNICA DE ATIVIDADE DE LÚPUS ERITEMATOSO SISTÊMICO. Revista Brasileira de Reumatologia 2017. [DOI: 10.1016/j.rbr.2017.07.207] [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: 11/26/2022] Open
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Villar L, Chaer F, Damião J, Bovolenta V, Andrade M, Torigoe D. PIODERMA GANGRENOSO COMO EVENTO ADVERSO DO TOCILIZUMABE. Revista Brasileira de Reumatologia 2017. [DOI: 10.1016/j.rbr.2017.06.059] [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: 11/24/2022] Open
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Lopez-Sendon J, Picon C, Garcia-Caldentey J, Garcia de Yebenes J, Alvarez-Cermeno J, Villar L. D07 Levels Of The Light Subunit Of Neurofilatment Protein In Cerebrospinal Fluid In Huntington's Disease. J Neurol Psychiatry 2014. [DOI: 10.1136/jnnp-2014-309032.99] [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: 11/03/2022]
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Alvarez-Cermeno J, Espino M, Costa-Frossard L, Muriel A, Villar L. CSF Free Kappa Chains Predict Conversion to Multiple Sclerosis in Clinically Isolated Syndromes (P02.125). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p02.125] [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: 11/15/2022] Open
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Marquez J, Sánchez O, Ugalde A, Bernal E, Calbacho M, Bajo A, Fabregate R, Villar L, Sabán J. W07.180 Glycosilated haemoglobin in the non-diabetic population. Its importance as a marker of macrophage activation. ATHEROSCLEROSIS SUPP 2004. [DOI: 10.1016/s1567-5688(04)90179-7] [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: 10/26/2022]
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Hojas R, Villegas A, Ropero P, Valverde F, Nogales A, González FA, José C, Villar L, García C. Two new mutations in cis on (G)gamma chain of fetal hemoglobin: Hb F-Madrid [G gamma 50(D1)Ser-->Cys] and [G gamma 75(E19)Ile-->Thr]. Ann Hematol 2003; 82:181-3. [PMID: 12634953 DOI: 10.1007/s00277-002-0598-5] [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] [Subscribe] [Scholar Register] [Received: 07/09/2002] [Accepted: 11/19/2002] [Indexed: 11/25/2022]
Abstract
We describe a new structural hemoglobin variant of (G)gamma with two amino acid replacements in cis found in the umbilical cord blood of a neonate in Madrid, Spain. The substitutions were identified on exon 2 of the (G)gamma globin gene, at codon 50 (T CT-->T GT) and at codon 75 (A TA-->A CA). We have named it Hb F-Madrid. The father of the propositus was the carrier of the same (G)gamma chain variant and, moreover, molecular study of alpha genes revealed the loss of an alpha gene (-alpha(3.7)/alpha alpha) both in the propositus and his mother.
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Affiliation(s)
- R Hojas
- Servicio de Hematología y Hemoterapia, Hospital Clinico San Carlos, Facultad de Medicina, Universidad Complutense, c/o Prof. Martín Lagos s/n, 28040 Madrid, Spain
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Virtanen R, Dirnböck T, Dullinger S, Grabherr G, Pauli H, Staudinger M, Villar L. Patterns in the Plant Species Richness of European High Mountain Vegetation. Ecological Studies 2003. [DOI: 10.1007/978-3-642-18967-8_6] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Abstract
A new self-sustained terminal protein-primed DNA amplification system has been used to describe in vitro evolutionary changes affecting maintenance of the genome size of bacteriophage phi29. These changes involve generation and efficient amplification of short palindromic molecules containing an inverted duplication of one of the original DNA ends. A template-switching mechanism is proposed to account for the appearance of these molecules. After their formation, they would replicate by means of hairpin intermediates. Relevant kinetic information about this DNA replication system has been obtained from the competition between the input full-length phi29 DNA and its derived truncated versions. The physiological relevance of these molecules and the mechanisms to control their formation are discussed.
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Affiliation(s)
- J A Esteban
- Centro de Biología Molecular Severo Ochoa, Universidad Autónoma, Canto Blanco, Madrid, Spain
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Aramendía M, Borau V, Jiménez C, Marinas J, Porras A, Urbano F, Villar L. Sepiolites as supports for Pd catalysts used in organic reduction processes. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/0304-5102(94)87034-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Martínez B, González de Suso MJ, Mota C, Pecete N, Espigares S, Villar L, Arenas A, Luna J, Puche E. [Adverse reactions caused by drugs in in-patients in a university hospital]. Rev Clin Esp 1986; 179:73-6. [PMID: 3738064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Gazitua R, Goodfellow R, Villar L, Williams L, Hirsch E. An analysis of the components of the pulmonary shunt equation: significance of the alveolar-arterial oxygen gradient, arterio-venous oxygen content difference, and mixed venous oxygen pressure. J Trauma 1979; 19:81-5. [PMID: 762734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Pulmonary shunt calculated by the Berggren method is commonly used as an indicator of pulmonary function. Although there is usually a good correlation between the shunt and the A-aDO2, other physiologic parameters involved in the shunt equation may significantly alter pulmonary function. The purpose of this study is to show the contribution of the PVO2 and a--v diff to the shunt equation. Data from eight selected patients with A--aDo2 values ranging from 300 to 395 torr and calculated shunts ranging from 6 to 35% were selected for this purpose. In patients with significant changes in PVO2 and a--v diff, the A--aDO2 is more reliable as an indicator of pulmonary function than is the calculated shunt.
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