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Nicotine's Effect on Cancer Stem Cell Markers in Human Umbilical Cord Tissue

Investigation of Nicotine in Umbilical Cord Tissue: Immunohistochemical and Biochemical Analysis of Cancer Stem Cell Markers

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06678152
Enrollment
70
Registered
2024-11-07
Start date
2017-01-14
Completion date
2024-12-05
Last updated
2025-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cancer, Nicotine Addiction, Pregnancy Related, Umbilical Cord Issue

Keywords

umblical cord, nicotine addiction, Cd44, Cd34, Cd90, ALDH

Brief summary

The umbilical cord is generally an organ that clinicians and pathologists do not pay sufficient attention to. The absence of significant pathology in the umbilical cords, along with the lack of association between certain placental pathologies and perinatal mortality and morbidity, have led both clinicians and pathologists to inadequately evaluate the placenta and umbilical cord. In our study, İnvestigators aimed to perform immunohistochemical and biochemical analysis by comparing two groups, one consisting of women who smoked throughout their pregnancy and the other of those who never smoked, including different markers in accordance with the literature. Method: The pregnant women included in the study were categorized according to their smoking status as follows: Group I: Non-smokers (smoking -) Group II: Smokers (smoking +) during pre-pregnancy and throughout the pregnancy In this study, 40 pregnant women who smoked during their pregnancy (between 37 and 42 weeks of gestation) and 37 age- and parity-matched healthy non-smoking pregnant women with full-term births between 37 and 42 weeks of gestation were selected as the control group. Umbilical cord samples (2 ml of blood and a 5 cm tissue sample) were collected from both groups without delay and fixed in 10% formalin. The tissue samples were processed for histological analysis with routine hematoxylin and eosin (H&E) staining following fixation in 10% formalin solution and routine paraffin embedding. İnvestigators aimed to examine the presence of oncological factors such as CD44, CD34, CD90, and ALDH molecules in the umbilical cord tissue of smokers during pregnancy through immunohistochemistry, and to explore the biochemical relationship of these molecules with their counterparts, CD34, CD44, CD90, and ALDH, found in the umbilical cord blood.

Interventions

None listed

Sponsors

Celal Bayar University
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy pregnancy under 37 weeks * Age range 18-50 * Being literate in Turkish * Not having any additional disease * Agreeing to participate in the study

Exclusion criteria

* High-risk pregnancies (gestational hypertension, preeclampsia, HELLP syndrome, chronic hypertension, gestational and pregestational diabetes, cholestasis, intrauterine growth retardation, etc.) * Multiple pregnancy * Pregnant women under the age of 18 * Smoking * Medication use (excluding routinely used food supplements during pregnancy) * Additional disease (thyroid, renal failure, liver failure, hepatitis, heart disease, connective tissue disease, etc.) * Immunosuppressive use * Presence of active or chronic infection * Presence of active or chronic inflammatory disease * Patients who gave birth at an external center or later chose to withdraw from the study * Patients who did not have any

Design outcomes

Primary

MeasureTime frame
Hospitalized pregnant women's with smokers and nonsmokers 80%umblical cord tissues 3x3 cm collected while birth during the study .umblical tissues staining will be Measured by Cd34, Cd44, Cd90 and ALDH immunohistochemistry technique.Baseline
Hospitalized pregnant women's with smokers and nonsmokers 80% umblical blood 5-7 ml collected while birth during the study. Bloods will be measured by Cd34, Cd44, Cd90 and ALDH biochemistry elisa technique.Baseline

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026