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3 results on '"Citamin D"'

1. Low serum anti-Müllerian hormone is associated with semen quality in infertile men and not influenced by vitamin D supplementation

Author

Rune Holt, Sam Kafai Yahyavi, Ireen Kooij, Christine Hjorth Andreassen, Anna-Maria Andersson, Anders Juul, Niels Jørgensen, and Martin Blomberg Jensen

Subjects
AMH, Male infertility, Citamin D, Semen quality, Sertoli cell function, Medicine
Abstract

Abstract Background Anti-Müllerian hormone (AMH) is released by testicular Sertoli cells and of great importance during fetal male sexual development, but less is known about the role of circulating AMH during adulthood. In vitro studies have shown that vitamin D may induce AMH transcription, but a controlled trial investigating the possible effect of vitamin D on serum AMH has not been conducted in men. Methods A single-center, double-blinded, randomized placebo-controlled clinical trial (NCT01304927) conducted in Copenhagen, Denmark. A total of 307 infertile men were included and randomly assigned (1:1) to a single dose of 300,000 IU cholecalciferol followed by 1400 IU cholecalciferol + 500 mg of calcium daily (n = 151) or placebo (n = 156) for 150 days. Difference in serum AMH was a predefined secondary endpoint. Explorative outcomes were associations between serum AMH and gonadal function in infertile men. The primary endpoint was difference in semen quality and has previously been published. Results Infertile men in the lowest AMH tertile had significantly lower sperm concentration (∆T3-1 16 mill/mL (228%); P < 0.001), sperm count (∆T3-1 55 million (262%); P < 0.001), motile sperm count (∆T3-1 28 million (255%); P < 0.001), progressive motile sperm count (∆T3-1 18 million (300%); P < 0.001), testis size (∆T3-1 2.7 mL (16%); P < 0.001), serum inhibin B (∆T3-1 72 pg/mL (59%); P < 0.001), inhibin B/FSH ratio (∆T3-1 48 (145%); P < 0.001), and higher FSH (∆T3-1 2.6 (38%); P < 0.001) than the tertile of infertile men with highest serum AMH. Vitamin D supplementation had no effect on serum AMH compared with placebo treatment. Conclusions In infertile men, low serum AMH is associated with severely impaired gonadal function illustrated by poor semen quality and lower testosterone/LH ratio. Serum AMH in infertile men was not influenced by vitamin D supplementation.

Published
2023
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2. Low serum anti-Müllerian hormone is associated with semen quality in infertile men and not influenced by vitamin D supplementation.

Author

Holt, Rune, Yahyavi, Sam Kafai, Kooij, Ireen, Andreassen, Christine Hjorth, Andersson, Anna-Maria, Juul, Anders, Jørgensen, Niels, and Blomberg Jensen, Martin

Subjects
MALE infertility, SEMEN analysis, ANTI-Mullerian hormone, VITAMIN D, DIETARY supplements, CALCIUM supplements
Abstract

Background: Anti-Müllerian hormone (AMH) is released by testicular Sertoli cells and of great importance during fetal male sexual development, but less is known about the role of circulating AMH during adulthood. In vitro studies have shown that vitamin D may induce AMH transcription, but a controlled trial investigating the possible effect of vitamin D on serum AMH has not been conducted in men. Methods: A single-center, double-blinded, randomized placebo-controlled clinical trial (NCT01304927) conducted in Copenhagen, Denmark. A total of 307 infertile men were included and randomly assigned (1:1) to a single dose of 300,000 IU cholecalciferol followed by 1400 IU cholecalciferol + 500 mg of calcium daily (n = 151) or placebo (n = 156) for 150 days. Difference in serum AMH was a predefined secondary endpoint. Explorative outcomes were associations between serum AMH and gonadal function in infertile men. The primary endpoint was difference in semen quality and has previously been published. Results: Infertile men in the lowest AMH tertile had significantly lower sperm concentration (∆T3-1 16 mill/mL (228%); P < 0.001), sperm count (∆T3-1 55 million (262%); P < 0.001), motile sperm count (∆T3-1 28 million (255%); P < 0.001), progressive motile sperm count (∆T3-1 18 million (300%); P < 0.001), testis size (∆T3-1 2.7 mL (16%); P < 0.001), serum inhibin B (∆T3-1 72 pg/mL (59%); P < 0.001), inhibin B/FSH ratio (∆T3-1 48 (145%); P < 0.001), and higher FSH (∆T3-1 2.6 (38%); P < 0.001) than the tertile of infertile men with highest serum AMH. Vitamin D supplementation had no effect on serum AMH compared with placebo treatment. Conclusions: In infertile men, low serum AMH is associated with severely impaired gonadal function illustrated by poor semen quality and lower testosterone/LH ratio. Serum AMH in infertile men was not influenced by vitamin D supplementation. [ABSTRACT FROM AUTHOR]

Published
2023
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3. Effect of isolated vitamin D supplementation on immune-inflammatory biomarkers in postmenopausal women: a randomized, placebo-controlled trial

Author

Bueloni-Dias, Flavia Neves [UNESP], Universidade Estadual Paulista (Unesp), Nahas, Eliana Aguiar Petri [UNESP], and Orsatti, Claudio Lera [UNESP]

Subjects
Ensaio clínico controlado, Vitamina D, Controlled clinical trial, Cytokines, Citamin D, Citocinas, Inflammation mediators, Mediadores inflamatórios, Menopause, Menopausa
Abstract

Submitted by FLÁVIA NEVES BUELONI DIAS null (flaviabueloni@hotmail.com) on 2017-08-29T17:17:10Z No. of bitstreams: 1 Doutorado Bueloni-Dias, FN_final version.pdf: 3714519 bytes, checksum: fe4719b16181e352b61f825d7ae2f1bf (MD5) Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-08-29T18:39:56Z (GMT) No. of bitstreams: 1 buelonidias_fn_dr_bot.pdf: 3714519 bytes, checksum: fe4719b16181e352b61f825d7ae2f1bf (MD5) Made available in DSpace on 2017-08-29T18:39:56Z (GMT). No. of bitstreams: 1 buelonidias_fn_dr_bot.pdf: 3714519 bytes, checksum: fe4719b16181e352b61f825d7ae2f1bf (MD5) Previous issue date: 2017-05-29 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Objetivo: Avaliar o efeito da suplementação isolada de vitamina D (VD) sobre os marcadores imune-inflamatórios em mulheres na pós-menopausa. Métodos: Foi conduzido ensaio clínico, duplo-cego, placebo-controlado envolvendo 160 mulheres com idade entre 50-65 anos e amenorréia ≥ 12 meses. Foram excluídas mulheres com histórico de doença cardiovascular, diabetes insulino dependente, doença renal crônica, doença hepática, doença autoimune, disfunção da paratireóide e usuárias de doses farmacológicas de VD (> 100 UI/dia). As participantes foram randomizadas em dois grupos: grupo VD, ingestão de colicalciferol 1.000 UI/dia via oral (n=80) ou grupo placebo (n=80). O tempo de intervenção foi de 10 meses, com avaliações nos momentos inicial e final. Para avaliação da resposta inflamatória foram dosadas as interleucinas IL-1β, IL-5, IL-6, IL-10, IL-12ρ70, IL-17, o fator de necrose tumoral alfa (TNF-) e o interferon gama (IFN-). Os valores séricos de 25-hidroxivitamina D [25(OH)D] foram mensurados por cromatografia líquida de alta eficiência (HPLC). A análise estatística foi por Intenção de Tratamento (ITT), empregando-se medidas repetidas por meio da Distribuição Gama seguido do teste de comparação múltipla de Wald. Resultados: Os grupos foram similares nos parâmetros clínicos e bioquímicos iniciais. A média de idade foi de 58,8 ± 6,6 anos no grupo VD e de 59,3 ± 6,7 anos no grupo placebo, com tempo de menopausa de 12,0 ± 8,8 anos e 12,3 ± 8,4 anos, respectivamente (p>0.05). Após 10 meses, valores médios de 25(OH)D aumentaram de 15,0 ± 7,5 ng/ml para 27,5 ± 10,4 ng/ml (+45,4%) no grupo VD, e diminuíram de 16,9 ± 6,7 ng/ml para 13,8 ± 6,0 ng/ml (-18,5%) no placebo (p0.05). A taxa de adesão foi de 92% para o estudo, sem diferenças entre os grupos de tratamento (VD ou placebo). Conclusão: Em mulheres na pós-menopausa com deficiência de vitamina D, a suplementação diária e isolada de 1.000 UI de vitamina D3 por 10 meses associou-se com redução nos marcadores pró-inflamatórios. Objective: To evaluate the effect of supplementation of vitamin D (VD) alone on the immune-inflammatory biomarkers in postmenopausal women. Methods: In this double-blind, placebo-controlled trial, 160 postmenopausal women were randomized into two groups: VD group, vitamin D3 supplementation 1,000 IU/day orally (n=80) or placebo group (n=80). Women with amenorrhea ≥ 12 months and age 50-65 years were included. Those with established cardiovascular disease, insulin dependent diabetes, primary hyperparathyroidism, renal failure (or creatinine >1.4 mg/dL), liver disorders, autoimmune diseases, and previous use of pharmacological doses of VD (> 100 IU/day) were excluded. The intervention time was 10 months, with assessments at the start and end of treatment. Serum levels of interleukin IL-1β, IL-5, IL-6, IL-10, IL-12ρ70, IL-17, tumor necrosis factor-alpha (TNF-) and interferon-gamma (IFN-) were determined. The plasma concentrations of 25-hydroxyvitamin D [25(OH)D] were measured by HPLC (high-performance liquid chromatography). Statistical analysis was by intention-to-treat (ITT), using Gamma distribution in repeated measures design followed by multiple comparison Wald’s test. Results: The two groups were similar at baseline in terms of clinical and laboratory parameters. The mean age of the patients included was 58.8 ± 6.6 years in the VD group and 59.3 ± 6.7 years in the placebo group, with time since menopause of 12.0 ± 8.8 years and 12.3 ± 8.4 years, respectively (p>0.05). After 10 months, there was increase in the 25(OH)D concentrations from 15.0 ± 7.5 ng/ml to 27.5 ± 10.4 ng/ml (+45.4%) in VD group, and decrease from 16.9 ± 6.7 ng/ml to 13.8 ± 6.0 ng/ml (-18.5%) in placebo group (p0.05). For the participants who completed the study, adherence was 92% for the study intervention (vitamin D or placebo). Conclusion: In postmenopausal women with vitamin D deficiency, daily isolated supplementation of 1,000 IU of vitamin D3 for 10 months was associated with a reduction in pro-inflammatory biomarkers. FAPESP: 2014/19382-3

Published
2017

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