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Intermittent Hypobaric Hypoxia Preconditioning Ameliorates Kidney Damage Compared to Acute Hypoxia Sadikin, Abdul Halim; Jusman, Sri Widia Azraki; Mulyawan, Wawan; Prijanti, Ani Retno
HAYATI Journal of Biosciences Vol. 32 No. 6 (2025): November 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.6.1437-1446

Abstract

Many studies have reported that intermittent hypobaric hypoxia (IHH) can cause oxidative stress and tissue damage in the kidneys, which can lead to impaired kidney function. However, a study using simulated intermittent hypobaric hypoxia was considered to have a protective role for the kidneys. This study aims to determine the effect of IHH on kidney adaptation to oxidative stress and kidney damage. Twenty-five rats were divided into five groups: control, one-time hypoxia (AHH), two-time hypoxia (IHH 1), three-time hypoxia (IHH 2), and four-time hypoxia (IHH 3). The intermittent interval was one week, and at the time of treatment, the rats were placed in a hypoxic chamber. At the end of treatment, the rats were sacrificed, and the kidneys, urine, and blood were collected. The kidney tissues were used for protein assay, ELISA (HIF-1α and VEGF), qPCR (cytoglobin (Cygb) and renin), SOD and GPx activity assay. Blood was used for creatinine and urea assay, and urine was used for KIM-1 ELISA. Formalin-submerged tissues were used for histopathological analysis. The level of HIF-1α and VEGF increased significantly from AHH to IHH 1. Cygb and renin expressions peaked at AHH and decreased at subsequent IHH groups. The Nrf2 level and GPx activity didn’t show any difference, but SOD activity peaked at IHH 1. The creatinine level only peaked at IHH 2; other groups remained the same as the control. Urea levels decreased with more IHH sessions, and KIM-1 didn’t show any difference. Our findings exhibit that hypoxia preconditioning by IHH treatment leads to the kidney’s adaptability to hypoxia and does not cause kidney damage.
Non-Severe Preeclampsia and Subclinical Inflammation: A Study of Cyclophilin A, NF-κB, PARP- 1, and Apoptosis in Human Placentas Resistantie, Novi; Wibowo, Noroyono; Prasmusinto, Damar; Jusman, Sri Widia Azraki; Yamin, Muhammad; Siregar, Nurjati Chairani; Prihartono, Joedo; Mose, Johannes Cornelius; Suhendro, Suhendro; Yunita, Ferdiana; Rosmanah, Lis; Margyaningsih, Nur Ita; Qotrunnada, Labibah; Roviqoh, Cindy Fawwaz; Rauf, Saidah
Indonesian Journal of Obstetrics & Gynecology Science Volume 8 Nomor 3 November 2025
Publisher : Dep/SMF Obstetri & Ginekologi Fakultas Kedokteran Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/obgynia.v8i3.947

Abstract

Objective: To compare the expression of CyP-A, NF-κB, PARP-1, and apoptotic index in Non-Severe Preeclampsia (NS-PE) and Normal Pregnancy (NP) and explore their roles in inflammation during preeclampsia.Methods: Conducted in Depok, Indonesia, the cross-sectional study involved 28 participants divided into NS-PE and NP groups based on ISSHP criteria. NP was defined as uncomplicated pregnancies at 38–40 weeks gestation. Placental weight was measured, and ELISA was used to assess biomolecule levels. Data were analyzed using T-tests or Mann-Whitney tests.Result: Maternal gestational age, body mass index, and leukocyte levels were significantly higher in NS-PE. The apoptotic index, measured by TUNEL assay, was also significantly elevated in NS-PE (41.56 ±24.87) compared to NP (23.96 ±18.79; p = 0.044). While CyP-A, PARP-1, and NF-κB levels were higher in NS-PE eventhough they were not statistically significant. Immunohistochemistry confirmed an overall increase in these molecules, supporting their clinical relevance.Conclusion: Despite the lack of statistical significance, increased inflammation and apoptosis in NS-PE may contribute to placental dysfunction and adverse pregnancy outcomes.Non-Severe Preeclampsia dan Inflamasi Subklinis: Studi CyP-A, NF-κB, PARP-1, dan Apoptosis pada Plasenta ManusiaAbstrak Tujuan: Penelitian ini bertujuan untuk mengetahui perbedaan ekspresi CyP-A, NF-κB, PARP-1, dan indeks apoptosis antara preeklamsia non-severe (NS-PE) dan kehamilan normal (NP), serta perannya dalam proses inflamasi pada preeklamsia.Metode: Metode penelitian yang digunakan dalam penelitian ini adalah cross-sectional. Penelitian ini dilakukan di Depok, Indonesia, dengan 28 partisipan yang dikelompokkan menjadi NS-PE dan NP berdasarkan kriteria ISSHP. Berat plasenta diukur dan kadar biomolekul dianalisis menggunakan ELISA. Uji T dan alternatif Mann-Whitney digunakan untuk analisis statistik.Hasil: Hasil penelitian menunjukkan bahwa usia kehamilan, indeks massa tubuh (IMT), dan kadar leukosit secara signifikan lebih tinggi pada NS-PE. Indeks apoptosis (TUNEL) juga lebih tinggi secara signifikan pada NS-PE (41,56 ±24,87) dibandingkan NP (23,96 ±18,79; p = 0,044). Kadar CyP-A, PARP-1, dan NF-κB lebih tinggi pada NS-PE meskipun tidak signifikan secara statistik, pemeriksaan IHK mengonfirmasi relevansi klinis peningkatan pada keseluruhan biomolekul tersebut. Kesimpulan: Meskipun signifikansi statistik rendah, peningkatan peradangan dan apoptosis pada NS-PE dapat menyebabkan disfungsi plasenta dan dampak buruk pada kehamilan.Kata kunci: Apoptosis; inflamasi; preeklamsia.