scholarly journals Placental mRNA and Protein Expression of VDR, CYP27B1 and CYP2R1 Genes Related to Vitamin D Metabolism in Preeclamptic Women

2021 ◽  
Vol 11 (24) ◽  
pp. 11880
Author(s):  
Justyna Magiełda-Stola ◽  
Grażyna Kurzawińska ◽  
Marcin Ożarowski ◽  
Anna Bogacz ◽  
Hubert Wolski ◽  
...  
Keyword(s):  
Vitamin D ◽  
Protein Expression ◽  
Gestational Age ◽  
Protein Level ◽  
Control Group ◽  
Protein Levels ◽  
Significant Difference ◽  
Mrna And Protein Expression ◽  
Placental Protein ◽  
Infant Birth

(1) Background: Considerable evidence indicates that the occurrence of preeclampsia (PE) is associated with a reduced vitamin D (VD) level. Several studies have found that VD deficiency is correlated with disturbed trophoblast invasion, reduced angiogenesis and increased vasoconstriction. Because the vitamin D receptor (VDR) and CYP27B1 and CYP2R1 hydrolases are strongly involved in VD metabolism, the goal of the present study was to evaluate their genes and proteins expression in the placentas from preeclamptic women. (2) Methods: Samples and clinical data were obtained from 100 Polish women (41 women with preeclampsia and 59 healthy pregnant controls). The whole PE group was divided into subgroups according to gestation week of pregnancy ending before and after 34 gestational weeks (early/late-onset preeclampsia (EOPE/LOPE)). However, finally, to reduce confounding by differences in gestational age, the EOPE group was excluded from the analysis of mRNA and protein placental expression, and we focus on the comparison between LOPE and control groups. The placental VDR, CYP27B1 and CYP2R1 mRNA expression was analyzed using RT-PCR, and placental protein levels were determined by ELISA assay. (3) Results. (3.1) Placental gene expression: Expression levels of both genes, CYP27B1 (1.17 vs. 1.05 in controls, p = 0.006) and CYP2R1 (2.01 vs. 1.89 in controls, p = 0.039), were significantly higher in preeclamptic placentas than in the control group. Interestingly, VDR expression was significantly lower in placentas from the PE group (1.15 vs. 1.20 in controls, p = 0.030). After dividing all preeclamptic women into subgroups only for the CYP27B1 gene, a significantly higher placental expression in the LOPE subgroup than the healthy controls was observed (padj = 0.038). (3.2) Placental protein expression: The results revealed that protein expression levels of CYP27B1 in the preeclamptic group were similar (5.32 vs. 5.23 in controls, p = 0.530). There was a significant difference in median VDR and CYP2R1 protein levels between studied groups (VDR: 2.56 vs. 3.32 in controls, p < 0.001; CYP2R1: 1.32 vs. 1.43 in controls, p = 0.019). After stratification of preeclamptic women into subgroups, a significant difference was observed only in the VDR protein level. The medians in the LOPE subgroups were significantly lower compared to the healthy control group. In the whole study group, the placental VDR protein level was inversely correlated with systolic and diastolic blood pressure (all p < 0.001), and positively correlated with gestational age (p < 0.001) and infant birth weight (p = 0.014). (4) Conclusions: Lower mRNA and protein expression of VDR in preeclamptic placentas, and also VDR protein expression, could play a pivotal role in preeclampsia development. Additionally, the higher mRNA expression of both CYP27B1 and CYP2R1 hydrolase genes in placentas from preeclamptic women could indicate the compensatory role of these enzymes in preeclampsia etiology. Our results also indicate that placental VDR protein level could be one of the factors modulating blood pressure in pregnant women, as well as influencing gestational age and infant birth weight. Considering the importance of these findings, future studies are warranted.

PTH regulates expression of ClC-5 chloride channel in the kidney

2000 ◽  
Vol 278 (2) ◽  
pp. F238-F245 ◽  
Author(s):  
Ian V. Silva ◽  
Carol J. Blaisdell ◽  
Sandra E. Guggino ◽  
William B. Guggino
Keyword(s):  
Vitamin D ◽  
Protein Expression ◽  
Chloride Channel ◽  
Urinary Calcium ◽  
Kidney Cortex ◽  
Lower Serum ◽  
Protein Levels ◽  
Calcium Reabsorption ◽  
Mrna And Protein Expression ◽  
Serum Pth

Mutations in the chloride channel, ClC-5, have been described in several inherited diseases that result in the formation of kidney stones. To determine whether ClC-5 is also involved in calcium homeostasis, we investigated whether ClC-5 mRNA and protein expression are modulated in rats deficient in 1α,25(OH)2 vitamin D3 with and without thyroparathyroidectomy. Parathyroid hormone (PTH) was replaced in some animals. Vitamin D-deficient, thyroparathyrodectomized rats had lower serum and higher urinary calcium concentrations compared with control animals as well as lower serum PTH and calcitonin concentrations. ClC-5 mRNA and protein levels in the cortex decrease in vitamin D-deficient, thyroparathyroidectomized rats compared with both control and vitamin D-deficient animals. ClC-5 mRNA and protein expression increase near to control levels in vitamin D-deficient, thyroparathyroidectomized rats injected with PTH. No significant changes in ClC-5 mRNA and protein expression in the medulla were detected in any experimental group. Our results suggest that PTH modulates the expression of ClC-5 in the kidney cortex and that neither 1α,25(OH)2 vitamin D3 nor PTH regulates ClC-5 expression in the medulla. The pattern of expression of ClC-5 varies with urinary calcium. Animals with higher urinary calcium concentrations have lower levels of ClC-5 mRNA and protein expression, suggesting that the ClC-5 chloride channel plays a role in calcium reabsorption.

Id1/NR2B Receptor Pathway Regulates Rat Cochlear Sensory Epithelial Cell Survival after Radiation

2018 ◽  
Vol 23 (3) ◽  
pp. 173-180 ◽  
Author(s):  
Junming Chen ◽  
Xiaowei Zhou ◽  
Tuanming Zou ◽  
Bochen  Wang ◽  
Youjun Yu ◽  
...  
Keyword(s):  
Nmda Receptor ◽  
Epithelial Cells ◽  
Protein Expression ◽  
S Phase ◽  
Control Group ◽  
Receptor Subtype ◽  
Protein Levels ◽  
Mrna And Protein Expression ◽  
Nr2b Receptor ◽  
Inhibitor Of Differentiation 1

Survival of cochlear sensory epithelial cells may be regulated by inhibitor of differentiation-1 (Id1) and the N-methyl-D-aspartic acid (NMDA) receptor. However, it is unclear whether Id1 and the NMDA receptor are involved in the radiation-mediated survival of rat cochlear sensory epithelial cells. Here, we show that the percentage of apoptotic cells increased, the percentage of cells in the S phase decreased, Id1 mRNA and protein expression decreased and the NMDA receptor subtype 2B (NR2B) mRNA and protein level increased in OC1 cells after radiation. Cells infected with the Id1 gene exhibited higher Id1 mRNA and protein levels and lower NR2B mRNA and protein levels than the control cells. In contrast, after transfection of the Id1 siRNA into OC1 cells, Id1 mRNA and protein expression decreased and NR2B mRNA and protein expression increased relative to that of the control group. Additionally, treatment with ifenprodil for 24 h before radiation reduced apoptosis and increased the percentage of cells in the S phase. Our results suggest that Id1 and NR2B might regulate the survival of OC1 cells following radiation.

scholarly journals Polymorphism in the progesterone receptor promoter gene in endometrial cancer alters its expression

2020 ◽  
Author(s):  
Zhengwu Xiao ◽  
Huahua Xiang ◽  
Jing Zhou ◽  
Chen Zhou ◽  
Zifen Guo
Keyword(s):  
Endometrial Cancer ◽  
Progesterone Receptor ◽  
Protein Expression ◽  
Cancer Patients ◽  
Control Group ◽  
Mrna Levels ◽  
Normal Endometrium ◽  
Protein Levels ◽  
Healthy Control ◽  
Mrna And Protein Expression

Abstract The purpose of this study was to investigate the effect of progesterone receptor (PGR) promoter +331G/A polymorphism on the mRNA and protein expression of its two isoforms, PRA and PRB, in healthy control women and women with endometrial cancer. To evaluate the relative occurrence of +331G/A polymorphism, the PGR gene promoter in the whole blood of 66 healthy volunteers and 62 endometrial cancer patients was genotyped. The results demonstrate that the frequency of GG and the overall frequency of the G allele were >90% in both populations. The GA+AA genotypes were more common in the healthy control group than in the endometrial cancer group, though the differences were not statistically significant. RT-PCR and Western blot analysis results showed that the mRNA and protein levels of both PRB and PRA were significantly lower in endometrium from cancer patients than in normal endometrium tissue. Furthermore, among individuals with endometrial cancer, those with the +331 G/A polymorphism expressed higher mRNA levels of the PRA isoform and higher protein levels of the PRB isoform. Therefore, our findings suggest that patients with endometrial cancer express less PGR and that the mRNA and protein expression of PRA and PRB may be altered due to 331G/A PGR gene polymorphism.

scholarly journals P060 Hypoxia-induced overexpression of Rev-Erb-alpha and NPAS2 proteins in obstructive sleep apnea patients - possible mechanism of DM2 development

2021 ◽  
Vol 2 (Supplement_1) ◽  
pp. A41-A41
Author(s):  
F Karuga ◽  
S Turkiewicz ◽  
M Ditmer ◽  
M Sochal ◽  
P Białasiewicz ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Serum Protein ◽  
Protein Level ◽  
Control Group ◽  
Apnea Hypopnea Index ◽  
Orphan Nuclear Receptor ◽  
Protein Levels ◽  
Obstructive Sleep ◽  
Significant Difference

Abstract Circadian clocks are endogenous coordinators of 24-hour behavioral and molecular rhythms, which disruption may be caused by obstructive sleep apnea (OSA). It is composed of a set of genes, function as activators (CLOCK, BMAL) or repressors (PER, CRY). Neuronal PAS Domain Protein 2 (NPAS2) can substitute CLOCK in its function. Orphan nuclear receptor (Rev-Erb-α) is another protein supporting the CLOCK-BMAL1 complex, forming the loop which helps to regulate their expression. There are studies suggesting the significant influence of circadian disruption mediated via NPAS2 and Rev-Erb-α on DM2 development. The aim of the study was to determine the role of NPAS2 and Rev-Erb-α in DM2 for OSA patients. All participants underwent polysomnography (PSG) examination. Based on apnea-hypopnea index accompanied by clinical data the recruited individuals (n=40) were assigned to one from 3 groups: OSA (severe OSA, no DM2; n=17), DM2 (severe OSA + DM2; n=7) and control group (no OSA, no DM2; n=16). Serum protein levels of Rev-Erb-α and NPAS2 were assessed with ELISA immunoassay. Analysis between the groups revealed the statistically significant difference only in NPAS2 protein level (p=0.037). Further post-hoc analysis revealed significant differences between OSA and the control group (p=0.017). Moreover, a statistically significant correlation between AHI and NPAS2 serum protein level was observed (r=-0.478, p=0.002). NPAS2 protein levels are associated with a number of apneas and hypopneas during the REM phase of sleep and might have a significant role in the development of OSA complications. However, further studies are needed to understand its role.

scholarly journals Effect of Chinese Medicine Xinmaitong on Blood Pressure in Spontaneously Hypertensive Rats

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Bin Zhang ◽  
Dong Li ◽  
Gexiu Liu ◽  
Wenfeng Tan ◽  
Jun Guo ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Treatment Group ◽  
Protein Expression ◽  
Spontaneously Hypertensive Rats ◽  
Early Stage ◽  
Control Group ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive ◽  
Protein Levels ◽  
Mrna And Protein Expression

Objective. To investigate the effect of traditional Chinese antihypertensive compound Xinmaitong on blood pressure and vasoactive factors of vasoconstrictor endothelin-1 (ET-1) and vasodilator calcitonin gene related peptide (CGRP) in spontaneously hypertensive rats (SHRs) with early stage hypertension. Methods. Twenty male SHRs were randomly divided into two groups: 10 for hypertensive control group and 10 for hypertensive treatment group. In addition, 10 Wistar rats were used as the normal control group without any intervention. SHRs of hypertensive treatment group were orally treated with Xinmaitong, while the hypertensive control group was treated with the normal saline (NS) for a total of eight weeks. The blood pressure in SHRs was examined before and after the end of the eight-week study. After treatment, the rats were killed and the blood samples were collected to measure plasma levels of ET-1 and CGRP by ELISA method, respectively. Meanwhile, the aorta rings were isolated for measuring the mRNA expression of ET-1 and CGRP by PCR. Moreover, the protein levels of ET-1 and CGRP were studied by immunohistochemical. Results. Daily oral administration of Xinmaitong resulted in significant fall in the SHRs’ blood pressure, including systolic and diastolic blood pressures (SBP and DBP), mean blood pressure (MBP), and pulse pressure (PP). The plasma ET-1 levels were reduced and CGRP increased. In parallel, the mRNA and protein expression of ET-1 were decreased, whereas the mRNA and protein expression of CGRP were enhanced in SHRs treated with Xinmaitong. Conclusion. The present study demonstrated for the first time that Xinmaitong leads to the fall in blood pressure of SHRs and that this antihypertensive effect is, at least in part, due to improvement of arterial tone.

scholarly journals Role of vitamin D serum levels in prevention of primary and recurrent melanoma

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
M. Lombardo ◽  
A. Vigezzi ◽  
G. Ietto ◽  
C. Franchi ◽  
V. Iori ◽  
...  
Keyword(s):  
Vitamin D ◽  
Serum Levels ◽  
Mitotic Rate ◽  
Control Group ◽  
Healthy Population ◽  
Histological Subtype ◽  
Melanoma Diagnosis ◽  
Significant Difference ◽  
Tumour Location

AbstractPatients afflicted with melanoma show lower vitamin D serum levels (VDSL) than the healthy population. This hypothesis agrees with its well-known antiproliferative features. An observational study was carried out to collect VDSL in patients suffering from melanoma. Our aim was to identify a potential connection between low VDSL and the risk to incur melanoma. Furthermore, we studied the association between VDSL at the diagnosis of melanoma and other germane prognostic factors. The population held in regard was composed of 154 patients with a diagnosis of melanoma between 2016 and 2019. These patients were retrospectively collected from our follow-up storage. We compared VDSL to clinical and pathological parameters (age, sex, tumour location, Breslow’s depth, Clark’s level, histological subtype, ulceration, et aliqua). Moreover, we recruited a control group with negative melanoma history. Mean and median of VDSL were significantly lower in the melanoma group. Instead, we found a negative association between melanoma and VDSL > 30 ng/L (OR 0.11; p < 0.0001). No correlation between VDSL and both Breslow’s depth and Clark’s level was discovered, but the VDSL comparison between thin (depth ≤ 1 mm) and thick tumours (depth > 1 mm) revealed a statistically significant difference (21.1 ± 8.2 ng/L vs 17.8 ± 8.1; p = 0.01). Moreover, VDSL were significantly lower in melanomas with mitotic rate ≥ 1/mm2 (22.1 ± 8.3 ng/L; p < 0007). Nevertheless, no connection was found between VDSL and both ulceration and positive sentinel nodes (p = 0.76; p = 0.74). Besides, our study revealed no association between VDSL and histological subtype (p = 0.161). Lower VDSL correlate with thick and high mitotic rate tumours. Future prospective studies would investigate if appropriate upkeep of suitable VDSL can decrease the risk of primary and recurrent melanoma diagnosis.

scholarly journals The Acute Effects of Swimming Exercise on PGC-1α-FNDC5/Irisin-UCP1 Expression in Male C57BL/6J Mice

Metabolites ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 111
Author(s):  
Eunhee Cho ◽  
Da Yeon Jeong ◽  
Jae Geun Kim ◽  
Sewon Lee
Keyword(s):  
Adipose Tissue ◽  
Protein Expression ◽  
Swimming Exercise ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Brown Adipose ◽  
Mrna And Protein Expression ◽  
Ucp1 Expression ◽  
Exercise Induced ◽  
Gastrocnemius Muscles

Irisin is a myokine primarily secreted by skeletal muscles and is known as an exercise-induced hormone. The purpose of this study was to determine whether the PGC-1α -FNDC5 /Irisin-UCP1 expression which is an irisin-related signaling pathway, is activated by an acute swimming exercise. Fourteen to sixteen weeks old male C57BL/6J mice (n = 20) were divided into control (CON, n = 10) and swimming exercise groups (SEG, n = 10). The SEG mice performed 90 min of acute swimming exercise, while control (non-exercised) mice were exposed to shallow water (2 cm of depth) for 90 min. The mRNA and protein expression of PGC-1α, FNDC5 and browning markers including UCP1 were evaluated by quantitative real-time PCR and western blotting. Serum irisin concentration was measured by enzyme-linked immunosorbent assay. An acute swimming exercise did not lead to alterations in the mRNA and protein expression of PGC-1α in both soleus and gastrocnemius muscles, the mRNA and protein expression of UCP1 in brown adipose tissue, mRNA browning markers in visceral adipose tissue and circulating irisin when compared with the control group. On the other hand, an acute swimming exercise led to increases in the mRNA and protein expressions of FNDC5 in the soleus muscle, the protein expression of FNDC5 in the gastrocnemius muscles and the protein expression of UCP1 in subcutaneous adipose tissue.

Long-term treadmill training ameliorates endothelium-dependent vasorelaxation mediated by insulin and insulin-like growth factor-1 in hypertension

2015 ◽  
Vol 119 (6) ◽  
pp. 663-669 ◽  
Author(s):  
Yi-Yuan Lin ◽  
Shin-Da Lee ◽  
Chia-Ting Su ◽  
Tsung-Lin Cheng ◽  
Ai-Lun Yang
Keyword(s):  
Growth Factor ◽  
Insulin Receptor ◽  
Treadmill Training ◽  
Control Group ◽  
Insulin Like Growth Factor ◽  
Hypertensive Rats ◽  
Protein Levels ◽  
Significant Difference ◽  
Nos Inhibitors

Dysfunction of insulin and insulin-like growth factor-1 (IGF-1) is associated with the pathophysiology of hypertension. The influence of long-term exercise on vascular dysfunction caused by hypertension remains unclear. We investigated whether long-term treadmill training improved insulin- and IGF-1-mediated vasorelaxation in hypertensive rats. Eight-week-old male spontaneously hypertensive rats (SHR) were randomly divided into sedentary and exercise (SHR-EX) groups. The SHR-EX group was trained on a treadmill for 60 min/day, 5 days/wk, for 8 wk. Wistar-Kyoto rats (WKY) were used as the normal control group. After training, aortic insulin- and IGF-1-mediated vasorelaxation was evaluated in organ baths. Additionally, the roles of phosphatidylinositol 3-kinase (PI3K), nitric oxide synthase (NOS), and aortic protein expression were examined in the three groups. Compared with sedentary SHR and WKY groups, insulin- and IGF-1-mediated vasorelaxation was significantly enhanced to a nearly normal level in the SHR-EX group. After endothelial denudation, blunted and comparable vasorelaxation was found among the three groups. Pretreatment with selective PI3K and NOS inhibitors attenuated insulin- and IGF-1-mediated vasorelaxation, and no significant difference was found among the three groups after the pretreatment. The aortic protein levels of the insulin receptor (IR), IGF-1 receptor (IGF-1R), insulin receptor substrate-1 (IRS-1), and endothelial NOS (eNOS) were also significantly increased in the SHR-EX group compared with the other two groups. These results suggested that treadmill training elicited the amelioration of endothelium-dependent insulin/IGF-1-mediated vasorelaxation partly via the increased activation of PI3K and NOS, as well as the enhancement of protein levels of IR, IGF-1R, IRS-1, and eNOS, in hypertension.

Evaluation of the Relationship between Vitamin D Deficiency and Atherogenic Factors in Diabetic Patients with Metabolic Syndrome

2021 ◽  
Author(s):  
Leila Akbarbaglu ◽  
Elham Nozari Mirarkolaei ◽  
Massoumeh Hotelchi ◽  
Abbas Khonakdar-Tarsi ◽  
Mahboobeh Ghanbari ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Vitamin D ◽  
Serum Level ◽  
Total Cholesterol ◽  
Vitamin D3 ◽  
Atherogenic Index ◽  
Control Group ◽  
Diabetic Patients ◽  
Significant Difference ◽  
25 Oh Vitamin D

Introduction: Metabolic syndrome includes a range of disorders that increase the risk of cardiovascular disease and diabetes mellitus. In this study, we examined the serum level of vitamin D3 in diabetic individuals with metabolic syndrome compared with non-diabetic individuals without metabolic syndrome and the association of serum vitamin D3 levels with metabolic syndrome and atherogenic factor (LDL/HDL). Material and Methods: In a case-control study, we included 110 women with metabolic syndrome according to ATP III criteria and 127 healthy women as a control group. Serum concentration of total cholesterol, LDL-C, FBS, HDL-C and serum triglyceride determined by enzymatic method and colorimetric and, serum level 25-(OH) vitamin D determined by ELISA. Results: It was found that the two healthy and metabolic groups were significantly different in terms of total cholesterol levels, LDL and triglyceride levels, HDL, VLDL, FBS, atherogenic index (LDL/HDL) and vitamin D levels (p<0.05). All participants in the control group and the patient and the whole study population were divided into two categories of insufficient and sufficient based on their measured serum concentrations of 25-(OH) vitamin D. There was a significant difference between the group with insufficient levels of vitamin D in comparison with the group with sufficient levels of vitamin D in terms of total cholesterol, LDL and triglyceride levels, HDL, VLDL, FBS and atherogenic index (LDL/HDL) (p=0.000). Conclusion: The present results showed that there is a significant relationship between level 25-(OH) D and atherogenic index (LDL/HDL) and the incidence of metabolic syndrome.

scholarly journals Establishment of peritoneal liquid electrophoretogram from healthy horses and horses submitted to experimentally induced intestinal obstruction

2014 ◽  
Vol 66 (3) ◽  
pp. 665-671 ◽  
Author(s):  
A.F.S. Nogueira ◽  
P.A. Di Filippo ◽  
L.A. Anai ◽  
M.C. Vieira ◽  
K.M.M.G. Simplício ◽  
...  
Keyword(s):  
Intestinal Obstruction ◽  
Acute Phase ◽  
Acute Phase Proteins ◽  
Immunoglobulin A ◽  
Control Group ◽  
Protein Levels ◽  
Sds Page ◽  
Significant Difference ◽  
Page Electrophoresis ◽  
Experimentally Induced

The initial inflammatory stages of the colic syndrome include changes known as acute phase response. The aim of this study was to contribute with the establishment of reference values concerning the electrophoretogram of peritoneal liquid from healthy horses and horses submitted to experimentally induced intestinal obstruction. Twenty-one horses were allotted in four groups: duodenal obstruction (DG), ileum obstruction (IG), left-dorsal colon obstruction (MG), and control group (CG). Peritoneal liquid was sampled before obtruction (T0), with 3 hours of obstruction (T3) and 6, 30, 102 and 174 hours after desobstructing (T6, T30, T102 and T174, respectively). Total protein levels were determined by the biuret method and protein fractions were obtained by SDS-PAGE electrophoresis. The acute phase proteins (APP) identified were Immunoglobulin-A, ceruloplasmin, transferrin, albumin, α1-antitrypsin, heavy and light chains of immunoglobulin-G, haptoglobin, α1-acid glycoprotein and a still unnamed protein, which was called P24. There was no difference (P>0.3) in protein levels among groups, although a significant difference (P>0.05) was observed between distinct experimental moments in each group evidencing a higher response of the APP in the obstructed groups. The APP fractioning of the peritoneal liquid was standardized to establish a standard curve for healthy equines and those submitted to induced intestinal obstruction. Moreover, it was verified that the SDS-PAGE electrophoresis was sensitive and effective to help diagnose abdominal inflammatory processes.

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