Epidermal Growth Factor
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2022 ◽  
Vol 42 (2) ◽  
pp. 141-149
Author(s):  
Saeam Shin ◽  
Hye In Woo ◽  
Jong-Won Kim ◽  
Yoonjung Kim M.D. ◽  
Kyung-A Lee

2021 ◽  
Vol 13 (10) ◽  
pp. 1492-1505
Author(s):  
Guo-Jun Cao ◽  
Di Wang ◽  
Zhao-Pei Zeng ◽  
Guo-Xiang Wang ◽  
Chun-Jiu Hu ◽  
...  

2021 ◽  
Vol 102 (5) ◽  
pp. 636-641
Author(s):  
V V Bazarnyi ◽  
L G Polushina ◽  
E A Sementsova ◽  
A Yu Maksimova ◽  
E N Svetlakova ◽  
...  

Aim. To determine the clinical value of the growth factors concentration in the oral fluid in patients with mild chronic periodontitis. Methods. A prospective study including 30 patients with chronic periodontitis and 20 healthy volunteers was conducted. The diagnosis was made based on standard clinical and radiological criteria. Nerve growth factor (NGF-), hepatocyte growth factor (HGF), epidermal growth factor (EGF), vascular endothelial growth factor A (VEGF-A), platelet-derived growth factor BB (PDGF-BB) were determined in oral fluid samples by using multiparametric fluorescence analysis with magnetic microspheres (xMAP technology, Luminex 200, USA). Statistical analysis was performed using nonparametric measures: median (Me) and interquartile range (Q1, Q3). Receiver operating characteristic (ROC) analysis was used to determine the clinical value of the parameters. Results. The chronic periodontitis was accompanied by an increase in the level of nerve growth factor- by 2.2 times, epidermal growth factor by 3 times, vascular endothelial growth factor A by 1.9 times (p 0.05) compared with the control. The platelet-derived growth factor BB concentration did not change. Using the ROC analysis, diagnostic sensitivity and diagnostic specificity of the studied parameters were determined: 89.1 and 91.1% for nerve growth factor , 92.3 and 96.1% for epidermal growth factor, 87.1 and 95.3% for vascular endothelial growth factor A, respectively. Conclusion. Salivary growth factors (nerve growth factor , epidermal growth factor, vascular endothelial growth factor A) can be considered as potential biomarkers of mild chronic periodontitis.


2021 ◽  
Vol 62 (1) ◽  
pp. 201-208
Author(s):  
Mirela Marcela Nichita ◽  
◽  
Călin Giurcăneanu ◽  
Mara Mădălina Mihai ◽  
Mihaela Ghigulescu ◽  
...  

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 327-327
Author(s):  
Ekaterina Shedova ◽  
Galina Singina ◽  
Irina Y Lebedeva ◽  
Aleksandr Lopukhov

Abstract The evaluation of factors responsible for the protection of the oocytes attained the metaphase-II stage from aging is importance for successful in vitro embryo reproduction. The aim of the present research was to study dose-dependent effects of epidermal growth factor (EGF) and prolactin (PRL) on the quality of bovine oocytes after their aging in vitro. Bovine cumulus-enclosed oocytes (CEOs) were matured in vitro for 20 h in TCM 199 containing 0.2 mM sodium pyruvate, 10% fetal calf serum (FCS), 10 μg/ml FSH and LH. At the end of in vitro maturation, oocytes were transferred to TCM 199 supplemented with 10% FCS (aging medium) and cultured for additional 24 h in the absence (Control) and in presence of EGF (10 and 50 ng/ml) and PRL (20 and 50 ng/ml). After prolonged culture oocytes were used for apoptosis detection (TUNEL staining, n=251) and the state of chromosomes evaluation (Tarkowski’s cytogenetic method, n=359). The data from 3–4 replicates were analyzed by ANOVA. At the end of prolonged culture (24 h) the rate of apoptotic oocytes in the Control group was 47.4±8.5%. EGF at concentration of 10 ng/ml and PRL at both doses decreased this rate to 15.0–22.1% (p < 0.05). Furthermore, PRL (not EGF) reduced the frequency of abnormal chromosome modifications (decondensation, adherence, clumping) at concentrations of 20–50 ng/ml from 58.7±2.1% (Control) to 41.2±1.9 and 45.6±2.7% respectively (p < 0.01). Thus, EGF and PRL is able to maintain the apoptosis resistance of bovine oocytes during their prolonged in vitro culture as well as PRL have the decelerating effect on abnormal modifications of M-II chromosomes. The research was supported by RFBR (17-29-08035) and the Ministry of Science and Higher Education of Russia.


2021 ◽  
pp. 107815522110422
Author(s):  
Hiroshi Sugimoto ◽  
Satoshi Matsumoto ◽  
Yukio Tsuji ◽  
Keisuke Sugimoto

Introduction Osimertinib is a tyrosine kinase inhibitor that targets the epidermal growth factor receptor. Elevated serum creatine kinase level is an uncommon adverse event associated with osimertinib treatment for lung cancer. Case Report We report a previously healthy 56-year-old woman who developed elevated serum creatine kinase levels during osimertinib monotherapy for epidermal growth factor receptor mutation-positive lung adenocarcinoma. Management & Outcome During treatment, she experienced leg cramps and her serum creatine kinase levels increased, peaking at 989 U/l. Further investigation revealed no evidence of cardiotoxicity or myositis; thus, osimertinib-induced myopathy was assumed to be the cause of her elevated serum creatine kinase levels. We successfully managed both lung cancer and osimertinib-induced myopathy using 1-week pauses of osimertinib therapy without dose reduction. Discussion Short-term suspension of osimertinib without dose reduction may be a reasonable option for osimertinib-induced myopathy.


Genes ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1573
Author(s):  
Chun-Ting Lin ◽  
Ting-Hao Chen ◽  
Chen-Cheng Yang ◽  
Kuei-Hau Luo ◽  
Tzu-Hua Chen ◽  
...  

The results of many studies indicate that cadmium (Cd) exposure is harmful to humans, with the proximal tubule of the kidney being the main target of Cd accumulation and toxicity. Studies have also shown that Cd has the effect of activating the pathway of epidermal growth factor receptor (EGFR) signaling and cell growth. The EGFR is a family of transmembrane receptors, which are widely expressed in the human kidney. The aim of this study was to investigate the kidney function estimated glomerular filtration rate (eGFR), and its relationship with plasma Cd level and EGFR gene polymorphism. Using data from Academia Sinica Taiwan biobank, 489 subjects aged 30–70 years were analyzed. The demographic characteristics was determined from questionnaires, and biological sampling of urine and blood was determined from physical examination. Kidney function was assessed by the eGFR with CKD-EPI formula. Plasma Cd (ug/L) was measured by inductively coupled plasma mass spectrometry. A total of 97 single-nucleotide polymorphisms (SNPs) were identified in the EGFR on the Taiwan biobank chip, however 4 SNPs did not pass the quality control. Multiple regression analyses were performed to achieve the study aim. The mean (±SD) plasma Cd level of the study subjects was 0.02 (±0.008) ug/L. After adjusting for confounding variables, rs13244925 AA, rs6948867 AA, rs35891645 TT and rs6593214 AA types had higher eGFR (4.89 mL/min/1.73 m2 (p = 0.035), 5.54 mL/min/1.73 m2 (p = 0.03), 4.96 mL/min/1.73 m2 (p = 0.048) and 5.16 mL/min/1.73 m2 (p = 0.048), respectively). Plasma cadmium and rs845555 had an interactive effect on eGFR. In conclusion, EGFR polymorphisms could be modifiers of Cd kidney toxicity, in which rs13244925 AA, rs6948867 AA, rs35891645 TT and rs6593214 AA may be protective, and Cd interacting with rs845555 may affect kidney function.


2021 ◽  
Vol 157 (8) ◽  
pp. 401-402
Author(s):  
Borja Arias-Peso ◽  
Álvaro Tello Fernández ◽  
Mohamed Bakkali el Bakkali

2021 ◽  
pp. 105393
Author(s):  
Bharti Sharma ◽  
Vikram Jeet Singh ◽  
Pooja A Chawla

2021 ◽  
Vol 18 (3) ◽  
pp. 488-494
Author(s):  
M. S. Krasnov ◽  
V. P. Yamskova

Objective: to study the condition of the cornea, as well as its epithelial and endothelial cells, while maintaining in vitro at various temperature conditions, under the influence of a number of factors, including bioregulators isolated from blood serum and cornea of the bovine, and epidermal growth factor.Methods. The study was carried out on rabbit corneas stored at temperatures of +4, –86 °C, as well as the cultivation of endothelial and epithelial cells isolated from the cornea after storage at these temperatures, followed by histological and immunohistochemical studies.Results. Storage of the cornea at +4 °C for 10 days leads to corneal edema and significantly reduces their transparency, both bioregulators partially prevent a decrease in the transparency of the cornea, while the endothelial layer lyses in groups with the addition of epidermal growth factor and corneal bioregulator; but remains in the cornea with the addition of a serum bioregulator. All three factors contribute to the preservation of the Bowman membrane. In the corneas stored at –86 °C on the 30th day, a preserved endothelial layer was observed, and the epithelium retained its multilayering in all groups with the addition of factors other than the control group. In the control samples, the epithelial layer partially exfoliated, the endothelial layer was almost completely lysed. Both bioregulators stimulated the proliferation of cells isolated from the native cornea and enhanced the action of the epidermal growth factor. Similar results were obtained on cells isolated from stored corneas for 2 weeks at –86 °C. In the case of combined use of the epidermal growth factor and bioregulators on the 30th day, the endothelial layer was mainly preserved, the Descemet’s membrane was not broken. In the control samples, the epithelium was mainly single-layered, partially exfoliated, and the endothelial layer was completely lysed.Conclusion. Storage of cornea during hypothermia (+4 °С) does not provide corneal viability for longer than 10 days. Storage under conditions of cryopreservation (–86 °C) ensures the viability of the cornea for 60 days. Adding bioregulators and an epidermal growth factor to the basic preservation medium allows one to obtain a structurally safe and viable cornea, while all cellular layers of the cornea, including the endothelial layer, are preserved and viable.


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