scholarly journals Severe and critical COVID-19 in children: a simple single-center, cross-sectional study

2021 ◽  
Vol 96 (4) ◽  
pp. 231-237
Author(s):  
Olena Riga ◽  
Vladimyr Korsunov ◽  
Andriy Penkov ◽  
Olexandra Michaylova ◽  
Marina Urivaeva ◽  
...  
Keyword(s):  
Cross Sectional Study ◽  
Sectional Study ◽  
Single Center ◽  
Cross Sectional

scholarly journals Epidemiological and pathological characteristics of post-surgical cases of invasive breast cancer among ethnicities of Iran in 2018: A single center cross-sectional study

2020 ◽  
Vol 26 (1) ◽  
pp. 6-9
Author(s):  
Soheila Sayad ◽  
Seyyed Ahmadi ◽  
Reza Nekouian ◽  
Mahshid Panahi ◽  
Khatereh Anbari
Keyword(s):  
Breast Cancer ◽  
Lymph Node ◽  
Invasive Breast Cancer ◽  
Triple Negative ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Single Center ◽  
Cross Sectional ◽  
Familial History ◽  
Number Of Patients

Background: Present study aimed to investigate immunohistochemical parameters in post-surgical cases of invasive breast cancer. Methods: In this single center cross-sectional study we investigated ethnicity, familial history, type of cancer, stage of cancer, lymph node positivity, bilateral involvement, metastasis and immunohistochemical parameters (estrogen and progesterone receptor, human epidermal growth factor receptor 2, as well as frequency of triple positive and triple negative patients merely based on immunohistochemical parameters). Results: Frequency of positive familial history was 27.42% (16.31-38.52%). Lymph node involvement was detected in 55.93% (43.26-68.60%) of the cases. Frequency of positive HER2 was 38.60% (25.96-51.23%). There were 17.54% (7.67-27.42%) of triple positive and 7.02% (0.39-13.65%) of triple negative cases. The most common stage at the time of diagnosis was stage 3 with 43.33% (30.79-55.87%) frequency. In Lur/Lak population higher frequency of positive HER2 cases was detected whereas in Mazani population frequency of positive HER2 cases was low (p=0.0291). Conclusions: These results could contribute to understanding of breast cancer patterns among different ethnicities. In order to draw clear conclusion future investigations have to be done in several health centers, for longer time periods and with larger number of patients.

scholarly journals Anthropometric and biochemical correlates of PAPP-A2, free IGF-I, and IGFBP-3 in childhood

2020 ◽  
Vol 182 (3) ◽  
pp. 363-374 ◽  
Author(s):  
Masanobu Fujimoto ◽  
Jane C Khoury ◽  
Philip R Khoury ◽  
Bhanu Kalra ◽  
Ajay Kumar ◽  
...  
Keyword(s):  
Short Stature ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Single Center ◽  
Marked Rise ◽  
Cross Sectional ◽  
Igf I ◽  
Important Regulator ◽  
The Relationship ◽  
Igfbp 3

Objective Pregnancy-associated plasma protein-A2 (PAPP-A2) is a metalloproteinase that cleaves IGFBP-3 and IGFBP-5. Human mutations in PAPPA2 result in short stature with a low percentage of free IGF-I. Little is known about PAPP-A2 levels and the regulation of free IGF-I throughout childhood. We examined PAPP-A2 and intact IGFBP-3 levels in childhood and explored associations between PAPP-A2, free and total IGF-I, and total and intact IGFBP-3 and their relationship to the percentage of free to total IGF-I and anthropometric factors. Design Cross-sectional study at a single center. Methods PAPP-A2, free IGF-I, and intact IGFBP-3 levels were measured in childhood (3–18 years old) and an evaluation of the relationship between these proteins and anthropometric factors. Results In 838 children, PAPP-A2 consistently decreased throughout childhood. In contrast, free IGF-I increased. A pubertal peak in free IGF-I was present in females but was less evident in males. Intact and total IGFBP-3 increased throughout childhood; however, intact IGFBP-3 had a more marked rise than total IGFBP-3. Percent free IGF-I decreased with no distinct pubertal peak. PAPP-A2 levels positively correlated with the percent free IGF-I (Male, Female; r = 0.18, 0.38; P < 0.001) and negatively with intact IGFBP-3 (Male, Female; r = −0.58, −0.65; P < 0.0001). Conclusions This is the first study to describe serum PAPP-A2 and intact IGFBP-3 in children between 3 and 18 years of age. Our correlative findings suggest that PAPP-A2 is an important regulator of the percent free IGF-I which can be a marker of perturbations in the GH/IGF-I axis.

scholarly journals The association between hypozincemia and aortic stenosis prevalence in hemodialysis patients: a single-center cross-sectional study

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Satoshi Matsui ◽  
Tomonaga Ameku ◽  
Daisuke Takada ◽  
Shinji Ono
Keyword(s):  
Aortic Stenosis ◽  
Serum Zinc ◽  
Cross Sectional Study ◽  
Zinc Level ◽  
Sectional Study ◽  
Single Center ◽  
Cross Sectional ◽  
Dialysis Vintage ◽  
Zinc Levels ◽  
Serum Zinc Levels

Abstract Background Hypozincemia contributes to phosphate-induced vascular calcification in model animals of renal failure, but the association between hypozincemia and aortic stenosis (AS) prevalence in patients with end-stage kidney disease remains unreported in clinical settings. Methods To investigate the association between hypozincemia and AS prevalence in patients undergoing hemodialysis, we designed a single-center cross-sectional study. Our outcome “AS” was defined as prevalence of moderate or severe AS or surgical history for AS. Depending on serum zinc levels, we divided patients undergoing hemodialysis into deciles. The association between hypozincemia and AS prevalence was analyzed via logistic regression adjusted for age, sex, dialysis vintage, diabetes history, serum albumin, and history of taking calcium-containing phosphate binder. Results Ninety-three patients undergoing hemodialysis were eligible. The mean serum zinc level was 61.3 ± 13.9 μg/dL. Twelve patients who belonged to 1st decile had serum zinc levels ≤ 48 μg/dL. Of these twelve patients, six patients (50 %) had AS. On the other hand, of eighty one patients who belonged to 2nd–10th deciles (serum zinc levels > 48 μg/dL), thirteen patients (16 %) had AS. Hypozincemia (serum zinc levels ≤ 48 μg/dL) was associated with AS prevalence (P = 0.038; odds ratio 4.43; 95% confidence interval 1.09–18.0). Conclusions AS was more prevalent in patients undergoing hemodialysis with severe hypozincemia in our cross-sectional study, although interventional studies are required to elucidate the benefit of zinc supplementation for AS progression.

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