Clinical trial NCT04767451: Levels of Selected Microelements in Premature Ovarian Insufficiency
Official title: Levels of Selected Microelements in Premature Ovarian Insufficiency
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Premature Ovarian Failure
Lead sponsor: Cengiz Gokcek Women's and Children's Hospital
Sponsor class: OTHER
First posted: 2021-02-23
Enrollment: 100
Sex: FEMALE
Minimum age (years): 18
Maximum age (years): 39
Standard ages: ADULT
Accepts healthy volunteers: yes
Observational model: CASE_CONTROL
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: The investigators consecutively will be recruited 50 subjects with POI, and 50 healthy women will be selected for the control group.

Brief summary: Aim: To evaluate plasma/urine/hair Lead (Pb), Cadmium (Cd), Gadolinium (Gd), Arsenic (As), Mercury (Hg), Cobalt (Co), Vanadium (V), Titanium (Ti), Sulfur (S), Chromium (Cr), Silver (Ag), Molybdenum (Mo), Boron (B), Lithium (Li), and Nickel (Ni) levels in women with premature ovarian insufficiency (POI) and to compare the results with those of healthy subjects.

Methods: This prospective study will be included 50 women with idiopathic premature ovarian insufficiency and 50 controls. The blood/urine/hair for analyses will be obtained at the early follicular phase of the menstrual cycle and plasma Lead (Pb), Cadmium (Cd), Gadolinium (Gd), Arsenic (As), Mercury (Hg), Cobalt (Co), Vanadium (V), Titanium (Ti), Sulfur (S), Chromium (Cr), Silver (Ag), Molybdenum (Mo), Boron (B), Lithium (Li), and Nickel (Ni) levels will be measured using inductively coupled plasma-mass spectrometry.

Detailed description: This will be an observational prospective cohort study conducted at Obstetrics and Gynecology Department of Cengiz Gokcek Obstetrics and Children's Hospital between January 2020 and June 2021. The authors will be recruited 50 subjects with idiopathic POI, and 50 healthy patients were selected for the control group. All patients will be given their oral and written informed consent before their inclusion in the study. The protocol was approved by the Ethics Committee for Clinical Research of Gaziantep University (Reference number: 2020/320). The study strictly will be adhered to the principles of the Declaration of Helsinki.

Women between the ages of 18-39 will be included. A volunteer group of healthy women who will be visited the gynecology clinic for routine examinations and women who will be admitted for pre-pregnancy tests will be invited randomly to this research as a control group. Healthy women, who will be returned during their early follicular phase of the menstrual cycle, will be recruited as the control group subjects. The exclusion criteria will be as follows: women with evidence for karyotypic, metabolic, toxic, or iatrogenic cause of the ovarian insufficiency and any women who use any medication for POI treatment. At enrollment, for both groups, the authors will be collected data about age, height, weight, BMI, age of menarche, obstetrics history, history of smoking, regular exercise and family history of POI. At enrolment, all patients will be underwent vaginal ultrasonography for the assessment of antral follicle count (AFC) and venous blood sample from the antecubital veins for measuring plasma concentration of Lead (Pb), Cadmium (Cd), Gadolinium (Gd), Arsenic (As), Mercury (Hg), Cobalt (Co), Vanadium (V), Titanium (Ti), Sulfur (S), Chromium (Cr), Silver (Ag), Molybdenum (Mo), Boron (B), Lithium (Li), and Nickel (Ni), Follicle-stimulating hormone (FSH), E2, anti-mullerian hormone (AMH) and complete blood count (CBC). In control subjects venous blood samples and AFC will be collected during the early follicular phase of the menstrual cycle. Urine and hair samples will be collected at the same time. The plasma and urine samples will be stored in aliquots at -80°C prior to the analyses of Lead (Pb), Cadmium (Cd), Gadolinium (Gd), Arsenic (As), Mercury (Hg), Cobalt (Co), Vanadium (V), Titanium (Ti), Sulfur (S), Chromium (Cr), Silver (Ag), Molybdenum (Mo), Boron (B), Lithium (Li), and Nickel (Ni). Hair samples will be stored in envelopes at room temperature. The plasma/urine/hair Lead (Pb), Cadmium (Cd), Gadolinium (Gd), Arsenic (As), Mercury (Hg), Cobalt (Co), Vanadium (V), Titanium (Ti), Sulfur (S), Chromium (Cr), Silver (Ag), Molybdenum (Mo), Boron (B), Lithium (Li), and Nickel (Ni) level will be measured using inductively coupled plasma-mass spectrometry. Then, this study will be determined plasma/urine/hair Lead (Pb), Cadmium (Cd), Gadolinium (Gd), Arsenic (As), Mercury (Hg), Cobalt (Co), Vanadium (V), Titanium (Ti), Sulfur (S), Chromium (Cr), Silver (Ag), Molybdenum (Mo), Boron (B), Lithium (Li), and Nickel (Ni) levels in women with POI (n=50) compared to those of volunteer healthy women (n=50). Then, these microelements levels will be compared in both group.

Eligibility criteria: Inclusion Criteria:

* women with idiopathic POI
* Healthy women

Exclusion Criteria:

1. women with any systemic condition (such as chronic hypertension, renal disease)
2. history of using any medication
3. drug user
4. history/presence of malignancy
5. history of Radiotherapy/chemotherapy
6. polycystic ovary syndrome
7. endometriosis
8. Patients whose chromosome analysis result is not normal
9. history of ovarian surgery
10. Ovarian cysts/mass
11. pregnancy
12. lactation
13. women who get their hair coloured

Primary outcomes:
measure: Levels of selected microelements in POI
timeFrame: 1 week
Secondary outcomes:
Other outcomes:
Locations:
city: Gaziantep
country: Turkey
facility: Cengiz Gokcek Women's and Child's hospital
Study officials:
References:
citation: European Society for Human Reproduction and Embryology (ESHRE) Guideline Group on POI; Webber L, Davies M, Anderson R, Bartlett J, Braat D, Cartwright B, Cifkova R, de Muinck Keizer-Schrama S, Hogervorst E, Janse F, Liao L, Vlaisavljevic V, Zillikens C, Vermeulen N. ESHRE Guideline: management of women with premature ovarian insufficiency. Hum Reprod. 2016 May;31(5):926-37. doi: 10.1093/humrep/dew027. Epub 2016 Mar 22.
citation: Pan W, Ye X, Zhu Z, Li C, Zhou J, Liu J. A case-control study of arsenic exposure with the risk of primary ovarian insufficiency in women. Environ Sci Pollut Res Int. 2020 Jul;27(20):25220-25229. doi: 10.1007/s11356-020-08806-0. Epub 2020 Apr 28.
citation: Maclaran K, Horner E, Panay N. Premature ovarian failure: long-term sequelae. Menopause Int. 2010 Mar;16(1):38-41. doi: 10.1258/mi.2010.010014. No abstract available.