Clinical trial NCT03761966: Cytokines Profile at the Beginning of Pregnancy
Official title: Cytokines Profile at the Beginning of Pregnancy in Mexican Women
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Correlation of Cytokines and Anthropometry in Pregnancy
Keywords: IL-10
IL-4
IFN-γ
TNF-α
Pregnancy
Lead sponsor: Materno-Perinatal Hospital of the State of Mexico
Sponsor class: OTHER
Collaborators: name: Universidad Autonoma del Estado de Mexico
name: Ciprés Grupo Médico CGM SC
First posted: 2018-12-03
Enrollment: 83
Sex: FEMALE
Minimum age (years): 18
Maximum age (years): 45
Standard ages: ADULT
Accepts healthy volunteers: yes
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Pregnant women older than 18 years old attender at the "Mónica Pretelini Sáenz" Maternal-Perinatal Hospital, located in Toluca City.

For a population of 8500 pregnant women annually attended, and a margin of error of 11%, the sample should be of 79 people.

Brief summary: A mechanism by which obesity could influence the increase in obstetric complications as more weight is gained, apart from oxidative stress (3) would be the changes in the expression profile of T helper (Th) cells. Due to the increase rate of obesity among Mexican women, the aim was to determine if there is some association between the weight changes in pregnancy and the cytokines Interleukin (IL)-10, IL-4, Interferon gamma (IFN-γ) and Tumor Necrosis Factor alpha (TNF-α).

Detailed description: Pregnant women older than 18 years old were invited to participate and all were asked to sign the informed consent. Women with congenital heart disease, disabling diseases, infectious diseases and autoimmune diseases were excluded and those whose clinical follow-up was lost were discarded from the final analysis.

Weight and height were measured using a calibrated using an adult scale (Seca, Hamburg, Germany). Blood Pressure (BP; mmHg) was checked by auscultation using a standard sphygmomanometer (Riester Big Ben® Square; Jangingen, Germany). All mothers received written nutritional guidance depending on the characteristics of each patient.

The expression levels of IL-10, IL-4, IFN-γ and TNF-α was performed by the ELISA technique.

Quantitative variables will be represented by measures of central tendency. Once the Kolmogorov test is performed for the normality of the variables, either the Student's T test or the Mann Whitney U test will be used to compare both groups. With the same criteria for normality either Pearson or Spearmen correlation will be used among the cytokines and anthropometric variables, considering a significant difference at p ≤ 0.05. The statistical analysis will be carried out in the Statistical Package for the Social Sciences (SPSS) program, version 19.

Eligibility criteria: Inclusion Criteria:

* Pregnant women older than 18 years old were invited to participate and all were asked to sign the informed consent.

Exclusion Criteria:

* Women with congenital heart disease, disabling diseases, infectious diseases and autoimmune diseases were excluded and those whose clinical follow-up was lost were discarded from the final analysis.

Primary outcomes:
measure: Cytokines levels
timeFrame: 2017-2018
Secondary outcomes:
Other outcomes:
Locations:
city: Toluca
country: Mexico
facility: Materno-Perinatal Hospital "Mónica Pretelini"
Study officials:
affiliation: Maternal-Perinatal Hospital "Mónica Pretelini Sáenz"
name: Hugo Mendieta Zerón, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Lombardelli L, Aguerre-Girr M, Logiodice F, Kullolli O, Casart Y, Polgar B, Berrebi A, Romagnani S, Maggi E, Le Bouteiller P, Piccinni MP. HLA-G5 induces IL-4 secretion critical for successful pregnancy through differential expression of ILT2 receptor on decidual CD4(+) T cells and macrophages. J Immunol. 2013 Oct 1;191(7):3651-62. doi: 10.4049/jimmunol.1300567. Epub 2013 Aug 30.
citation: Cheng SB, Sharma S. Interleukin-10: a pleiotropic regulator in pregnancy. Am J Reprod Immunol. 2015 Jun;73(6):487-500. doi: 10.1111/aji.12329. Epub 2014 Oct 1.
citation: Ziganshina MM, Krechetova LV, Vanko LV, Nikolaeva MA, Khodzhaeva ZS, Sukhikh GT. Time course of the cytokine profiles during the early period of normal pregnancy and in patients with a history of habitual miscarriage. Bull Exp Biol Med. 2013 Jan;154(3):385-7. doi: 10.1007/s10517-013-1956-0.
citation: Wegmann TG, Lin H, Guilbert L, Mosmann TR. Bidirectional cytokine interactions in the maternal-fetal relationship: is successful pregnancy a TH2 phenomenon? Immunol Today. 1993 Jul;14(7):353-6. doi: 10.1016/0167-5699(93)90235-D.