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Efficacy of metformin combined with vitamin D in the treatment of polycystic ovarian syndrome: A meta-analysis.

African journal of reproductive health
January 1, 1970
Li Xiang et al. (3 authors)
Meta-AnalysisJournal ArticleHuman Study
Study Details

Study Goal

The researchers aimed to assess the therapeutic effects of Metformin combined with vitamin D in patients with polycystic ovary syndrome (PCOS).

Results Summary

The meta-analysis found that Metformin combined with vitamin D significantly reduced insulin resistance, BMI, and testosterone levels, increased serum vitamin D levels, and improved menstrual cycle regulation in PCOS patients.

Population

Women of childbearing age with polycystic ovary syndrome (PCOS).

Effective Dosage

Not specified

Duration

Not specified

Interactions

None mentioned

Extracted Claims (10)
InterventionDirectionEndpointPopulationDosageImpactClaim #
Metformin combined with vitamin D
decrease
homeostatic model assessment for insulin resistance
PCOS patients
SMD: -0.23; 95% Cl: -0.42,-0.04; P<0.05
significantly lower
#1
Metformin combined with vitamin D
decrease
body mass index (BMI)
PCOS patients
SMD: -1.86; 95% Cl: -2.77,-0.96; P<0.01
reductions
#2
Metformin combined with vitamin D
increase
Serum 25 (OH) D
PCOS patients
SMD: 14.28; 95% Cl: 12.26,16.29; P<0.01
increased
#3
Metformin combined with vitamin D
decrease
testosterone
PCOS patients
SMD: -0.11; 95% Cl: -0.15,-0.07; P<0.01
reductions
#4
Metformin combined with vitamin D
increase
menstrual cycles
PCOS patients
OR: 1.27; 95% Cl: 0.99,1.63; P=0.063
regulated
#5
Metformin and vitamin D treatment
decrease
insulin resistance
-
-
significant reductions
#6
Metformin and vitamin D treatment
decrease
BMI
-
-
significant reductions
#7
Metformin and vitamin D treatment
decrease
testosterone levels
-
-
significant reductions
#8
Metformin and vitamin D treatment
increase
serum vitamin D levels
-
-
increased
#9
Metformin and vitamin D treatment
increase
menstrual cycle regulation
-
-
improved
#10
Abstract

Polycystic ovary syndrome (PCOS), as an endocrine and metabolic disorder, affects approximately 6% -20% of women of childbearing age. This study aims to assess the therapeutic effects of Metformin combined with vitamin D in PCOS patients. Eight databases were searched to obtain randomized controlled trials, both domestically and internationally, on the effects of Metformin combined with vitamin D in patients with PCOS. Data analysis was performed using RevMan 5.3 software. Nine studies were ultimately included in this meta-analysis. Six studies reported the homeostatic model assessment for insulin resistance of the test group and the control group, which was significantly lower (SMD: -0.23; 95% Cl: -0.42,-0.04; P<0.05) than the control group, body mass index (BMI) (SMD: -1.86; 95% Cl: -2.77,-0.96; P<0.01), Serum 25 (OH) D (SMD: 14.28; 95% Cl: 12.26,16.29; P<0.01), testosterone (SMD: -0.11; 95% Cl: -0.15,-0.07; P<0.01) and regulated menstrual cycles (OR: 1.27; 95% Cl: 0.99,1.63; P=0.063). Our meta-analysis of nine trials demonstrates significant reductions in insulin resistance, BMI, and testosterone levels, along with increased serum vitamin D levels and improved menstrual cycle regulation after Metformin and vitamin D treatment. These findings suggest the potential of this combined therapy in managing the multifaceted aspects of PCOS. Le syndrome des ovaires polykystiques (SOPK), en tant que trouble endocrinien et métabolique, touche environ 6 à 20 % des femmes en âge de procréer. Cette étude vise à évaluer les effets thérapeutiques de la metformine associée à la vitamine D chez les patients atteints du SOPK. Huit bases de données ont été consultées pour obtenir des essais contrôlés randomisés, tant au niveau national qu'international, sur les effets de la metformine associée à la vitamine D chez les patients atteints du SOPK. L'analyse des données a été réalisée à l'aide du logiciel RevMan 5.3. Neuf études ont finalement été incluses dans cette méta-analyse. Six études ont rapporté l'évaluation du modèle homéostatique pour la résistance à l'insuline du groupe test et du groupe témoin, qui était significativement inférieure (DMS : -0,23 ; IC à 95 % : -0,42, -0,04 ; P <0,05) par rapport au groupe témoin, la masse corporelle indice (IMC) (DMS : -1,86 ; Cl 95 % : -2,77, -0,96 ; P<0,01), Sérum 25 (OH) D (SMD : 14,28 ; Cl 95 % : 12,26,16,29 ; P<0,01), testostérone (DMS : -0,11 ; Cl à 95 % : -0,15, -0,07 ; P<0,01) et cycles menstruels régulés (OR : 1,27 ; Cl à 95 % : 0,99, 1,63 ; P=0,063). Notre méta-analyse de neuf essais démontre des réductions significatives de la résistance à l'insuline, de l'IMC et des taux de testostérone, ainsi qu'une augmentation des taux sériques de vitamine D et une amélioration de la régulation du cycle menstruel après un traitement à la metformine et à la vitamine D. Ces résultats suggèrent le potentiel de cette thérapie combinée dans la gestion des aspects multiformes du SOPK.

Medical Subject Headings (MeSH)
FemaleHumansHypoglycemic AgentsInsulin ResistanceMetforminPolycystic Ovary SyndromeTestosteroneVitamin D
Study Links
Quality Scores
SafetyNot Assessed
Efficacy85/10
Quality78/10
Research Impact Scores
APT Score0.05
Weight Score1.31
Normalized Score0.70
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