scholarly journals High viral SARS-CoV-2 load in placenta of patients with hypertensive disorders after COVID-19 during pregnancy

2021 ◽  
Author(s):  
M Fabre ◽  
P Calvo ◽  
S Ruiz-Martinez ◽  
M Peran ◽  
D Oros ◽  
...  
Keyword(s):  
Viral Load ◽  
Group Versus ◽  
High Viral Load ◽  
Control Group ◽  
Rt Pcr ◽  
Third Trimester ◽  
Hypertensive Disorders ◽  
The Moment ◽  
The Relationship ◽  
Control Study

AbstractIntroductionStudies described an increased frequency of hypertensive disorders of pregnancy after a COVID-19 episode. There is limited evidence about SARS-CoV-2 viral load in placenta. This study aimed to investigate the relationship between SARS-CoV-2 viral load in placenta and clinical development of HDP after COVID-19 throughout different periods of gestation.MethodsThis was a case-control study in women with and without gestational hypertensive disorders (HDP) after SARS-CoV-2 infection diagnosed by RT-PCR during pregnancy. Patients were matched by gestational age at the moment of COVID-19 diagnosis. We performed an analysis of SARS-CoV-2 RNA levels in placenta.ResultsA total of 28 women were enrolled. Sixteen patients were diagnosed with COVID-19 during the third trimester and the remaining twelve patients in the others trimesters. Ten placentas (35.7%) were positive for SARS-CoV-2, nine of them (90%) belonged to the HDP group versus one (10%) in control group (p=0.009). Those cases with the highest loads of viral RNA developed severe-preeclampsia.ConclusionThe presence of SARS-CoV-2 was more frequent in placentas of patients with HDP after COVID-19. There seems to be a relationship between high viral load in the placenta and the development of hypertensive disorders. We found SARS-CoV-2 viral load in placenta after birth in mothers infected at the first half of pregnancy, but with negative nasopharyngeal RT-PCR at delivery. Our data suggest that SARS-CoV-2 infection during pregnancy could trigger gestational hypertensive disorders through placenta-related mechanisms.

scholarly journals Frequent Placental SARS-CoV-2 in Patients with COVID-19-Associated Hypertensive Disorders of Pregnancy

2021 ◽  
pp. 1-11
Author(s):  
Marta Fabre ◽  
Pilar Calvo ◽  
Sara Ruiz-Martinez ◽  
Maria Peran ◽  
Daniel Oros ◽  
...  
Keyword(s):  
Viral Load ◽  
Gestational Hypertension ◽  
Group Versus ◽  
Control Group ◽  
Hypertensive Disorders Of Pregnancy ◽  
Rt Pcr ◽  
Third Trimester ◽  
Hypertensive Disorders ◽  
The Moment ◽  
The Relationship

<b><i>Introduction:</i></b> Studies described an increased frequency of hypertensive disorders of pregnancy (HDP) after a COVID-19 episode. There is limited evidence about SARS-CoV-2 viral load in placenta. This study aimed to investigate the relationship between SARS-CoV-2 viral load in the placenta and clinical development of HDP after COVID-19 throughout different periods of gestation. <b><i>Methods:</i></b> This is a case-control study in women with and without gestational hypertensive disorders after SARS-CoV-2 infection diagnosed by RT-PCR during pregnancy. Patients were matched by gestational age at the moment of COVID-19 diagnosis. We performed an analysis of SARS-CoV-2 RNA levels in placenta. <b><i>Results:</i></b> A total of 28 women were enrolled. Sixteen patients were diagnosed with COVID-19 during the third trimester and the remaining 12 patients in the other trimesters. Ten placentas (35.7%) were positive for SARS-CoV-2, 9 of them (9/14, 64.3%) belonged to the HDP group versus 1 (1/14, 7.2%) in the control group (<i>p</i> = 0.009). Those cases with the highest loads of viral RNA developed severe preeclampsia (PE). <b><i>Conclusion:</i></b> Among women diagnosed with COVID-19 during pregnancy, the presence of SARS-CoV-2 in the placenta was more frequent among women suffering from PE or gestational hypertension. Furthermore, the most severe cases of HDP were associated with high placental viral load, not necessarily associated with a positive nasopharyngeal RT-PCR at delivery. Our data suggest that SARS-CoV-2 infection during pregnancy could trigger gestational hypertensive disorders through persistent placental infection and resulting placental damage.

scholarly journals Prolonged Detection of SARS CoV2 RNA in Extracellular Vesicles in Nasal Swab RT-PCR Negative Patients

2021 ◽  
Author(s):  
P Debishree Subudhi ◽  
Sheetalnath Rooge ◽  
Swati Thangriyal ◽  
Reshu Aggarwal ◽  
Ekta Gupta ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Viral Load ◽  
Liver Disease ◽  
Chronic Liver Disease ◽  
Extracellular Vesicles ◽  
Nasal Swab ◽  
High Viral Load ◽  
Chronic Liver ◽  
Rt Pcr ◽  
Route Of Transmission

Background: There is a prolonged RT PCR positivity seen in COVID-19 infected patients up to 2 to 3 months. It is assumed that this virus is usually non-infective but there are hardly any study on the reactivation of this virus within the respiratory tract. We aim to investigate the presence of viral particles inside Extracellular vesicles (EV) and its role in underlying liver disease patients. Methods: SARS CoV2 nasal and throat swab RT-PCR positive n=78 {n=24(66.6%) chronic liver disease (CLD); n=52 (81.3%) non liver disease} n=5 RT PCR negative subjects (HC) were studied. SARS CoV2 patients were also followed up for day (d) 7, 14 and 28. Nasal swab [collected in viral transport media (VTM)] and plasma samples were investigated at each time point. Extracellular vesicles were isolated using differential ultracentrifugation. SARS CoV2 RNA was measured using qRT-PCR by Altona Real Star kit. Cellular origin of EV was confirmed using epithelial cells (Epcam+ CK19+ CDh1+), endothelial cells (CD31+CD45-), and hepatocytes (ASGPR+) surface markers by Flow cytometry. Results: The COVID19 patients {Mean age 54±23 years; 41 males} were having severity between moderate to severe. In patients with cirrhosis, the most common aetiology of liver disease was alcohol (MELD 22±8). In baseline RT-PCR positive patients, SARS-CoV2 RNA inside the EV was present in 64/74 (82%) patients with comparable viral load between VTM and EV (mean 1/CT 0.033±0.005 vs. 1/CT 0.029±0.014, p=ns). On follow-up at day 7, of the 24 patients negative for COVID19, 10 (41%) had persistence of virus in the EV (1/CT 0.028±0.004) and on day 14, 14 of 40 (35%) negative RT-PCR had EVs with SARS CoV2 RNA (1/CT 0.028±0.06). The mean viral load decreased at day7 and day14 in nasal swab from baseline (p=0.001) but not in EV. SARS-CoV2 RNA otherwise undetectable in plasma, was found to be positive in EV in 12.5% of COVID19 positive patients. Interestingly, significantly prolonged and high viral load was found in EV at day 14 in CLD COVID19 patients compared to COVID19 alone (p=0.002). The high cellular injury was seen in CLD COVID19 infected patients with significant high levels of EV associated with endothelial cells and hepatocytes than COVID19 alone (p=0.004; 0.001). Conclusion: Identification of SARS-CoV2 RNA in EV, in RT-PCR negative patients indicates persistence of infection for and likely recurrence of the infection. It is suggestive of another route of transmission as EV harbour SARS CoV2 RNA. EV associated RNA may determine the ongoing inflammation and clinical course of subjects with undetectable SARS-CoV2 virus and this may also have relevance in management of chronic liver disease patients.

scholarly journals Rapid Diagnosis of SARS-CoV-2 Pneumonia on Lower Respiratory Tract Specimens

2021 ◽  
Author(s):  
Vanessa De Pace ◽  
Patrizia Caligiuri ◽  
Valentina Ricucci ◽  
Nicola Nigro ◽  
Barbara Galano ◽  
...  
Keyword(s):  
Intensive Care ◽  
Viral Load ◽  
Respiratory Tract ◽  
Intensive Care Units ◽  
Lower Respiratory Tract ◽  
Clinical Decision Making ◽  
High Viral Load ◽  
Rt Pcr ◽  
Predictive Values ◽  
Rapid Pcr

Abstract Background: The ongoing pandemic of SARS-CoV-2 requires the availability of accurate and rapid diagnostic tests, especially in some clinical settings like emergency and intensive care units. The objective of this study was to evaluate the diagnostic performances of rapid PCR kit Vivalytic SARS-CoV-2 in lower respiratory tract (LRT) specimens.Methods: A consecutive sample of LRT specimens (bronchoalveolar lavage and bronchoaspirates) was collected from Intensive Care Units of San Martino Hospital (Genoa, Italy) between November 2020 and January 2021. All samples were tested in RT-PCR by using Allplex™ SARS-CoV-2 assay (Seegene Inc., South Korea). Based on RT-PCR results, specimens were categorized into negative, positive with high viral load [cycle threshold (Ct) ≤30] and positive with low viral load (Ct of 31–35). A quota 1:1:1 sampling was used to achieve a sample size of 75. Then, all specimens were tested in the rapid PCR assay Vivalytic SARS-CoV-2 (Bosch Healthcare Solutions GmbH, Germany). The diagnostic performance of the rapid PCR against RT-PCR was assessed through calculation of accuracy, Cohen’s κ, sensitivity, specificity and expected positive (PPV) and negative (NPV) predictive values.Results: The overall diagnostic accuracy of the Vivalytic SARS-CoV-2 was 97.3% (95% CI: 90.9–99.3%) with an excellent Cohen’s κ of 0.94 (95% CI: 0.72–1). The sensitivity and specificity were 96% (95% CI: 86.5–98.9%) and 100% (95% CI: 86.7–100%), respectively. Samples with high viral loads had a sensitivity of 100% (Table 1). The distributions of E gene Ct values were similar (Wilcoxon’s test: P=0.070) with medians of 35 (IQR: 25–36) and 35 (IQR: 25–35), respectively (Figure 1). NPV and PPV was 92.6% and 100%, respectively.Conclusions: This study shows Vivalytic SARS-CoV-2 can be used following the sample liquefaction on LRT specimens. It’s a feasible and highly accurate molecular procedure especially in high viral load samples. This assay allows having a result in about 40 min and therefore may accelerate the clinical decision making in urgent/emergency situations.

scholarly journals The correlation between family smoking habits and mosquito coils use with pneumonia incidences in toddlers

2019 ◽  
Vol 2 (2) ◽  
pp. 69-74
Author(s):  
Wiwin Winarsih ◽  
Wiwik Kusumawati ◽  
Anjarwati Anjarwati
Keyword(s):  
Smoking Habits ◽  
Observational Research ◽  
Control Group ◽  
P Value ◽  
Case Group ◽  
Chi Square ◽  
Study Approach ◽  
The Family ◽  
The Relationship ◽  
Control Study

The incidences of pneumonia in infants Become the second highest cause mortality before reaching the age of 5 years and a health problem in Indonesia. The family of smoking and smoke from burning mosquito coils are the triggers for air pollution, which can lead to pneumonia in infants. The study aims to analyze the relationship between family smoking habits and the use of mosquito coils with the incidence of pneumonia in under-fives. The method of research applied analytic observational research using a case-control study approach. The number of samples in this study was 87 under-fives in the case group and 87 under-fives in the control group. Sampling was conducted by non-probability sampling. A questionnaire was used as a data collecting instrument. Data analysis used chi-square and multiple logistic regression. The results of this study Showed that there was a relationship between family smoking habits and the use of mosquito coils with the incidence of pneumonia in infants. In addition, there were other variables that had a relationship with the incidence of pneumonia in under-fives namely smoking location (OR = 3,046; 95% CI: 1429-6492, p = 0.003), the number of cigarettes (OR = 7.105 ; 95% CI: 3079-16394, p = 0.000), and length of time with smokers (p = 0.000). On the other hand, the variables of father smoker status and the frequency of using mosquito coils were not related to the incidence of pneumonia in under-fives (p value 0.05). It is concluded that family smoking habits, use of mosquito coils, the location of smoking, and number of cigarettes, and  length of time together with smokers were risk factors associated with the incidence of pneumonia in toddlers

scholarly journals The thickness changes of retina in high myopia patients during the third trimester of pregnancy: a pilot study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Chenchen Liu ◽  
Puying Wei ◽  
Jun Li
Keyword(s):  
Pregnant Women ◽  
High Myopia ◽  
Retinal Thickness ◽  
Control Group ◽  
Study Group ◽  
Average Thickness ◽  
Third Trimester ◽  
The Third ◽  
The Difference ◽  
Control Study

Abstract Objectives To observe and compare the difference in retinal thickness using optical coherence tomography (OCT) between patients with high myopia (HM) during the third trimester of pregnancy and age-matched HM non-pregnant women. Methods A case-control study. A total of 39 eyes from 39 HM women in the third trimester (study group) and 50 eyes of 50 age-matched non-pregnant women with HM (control group) were included. All subjects underwent SD-OCT examination. The built-in software was used to measure the retinal thickness in macular region. The data from two groups were compared using independent-samples t test. Results Among the 89 subjects in this study, the mean gestational age of the study group was 35.09 ± 2.44 weeks, and the average age was 32.24 ± 3.75 years. The average age of the control group was 34.04 ± 7.19 years old. Compared with the control group, the average thickness of parafoveal area, and the average thickness of parafoveal superior, inferior, temporal quadrants of the superficial retina and the average thickness of the foveal and parafoveal of the superficial retina were significantly decreased in the study group (P < 0.05). Compared with the control group, the average thickness of all quadrants of the retina in the parafoveal area except the nasal quadrant were significantly decreased in the study group (P < 0.05). Conclusions In this observational study, the retinal thickness of patients with high myopia during the third trimester of pregnancy was thinner than that of non-pregnant women with age-matched high myopia.

The Relationship of Drug Abuse to Unexplained Sudden Death

2008 ◽  
Vol 132 (12) ◽  
pp. 1903-1906
Author(s):  
Amy C. Gruszecki ◽  
Gerald McGwin, Jr ◽  
C. Andrew Robinson, Jr ◽  
Gregory G. Davis
Keyword(s):  
Drug Abuse ◽  
Cause Of Death ◽  
Control Group ◽  
Manner Of Death ◽  
Increased Risk ◽  
History Of ◽  
Matched Case ◽  
Relationship Of ◽  
The Relationship ◽  
Control Study

Abstract Context.—Forensic pathologists regularly investigate the deaths of individuals with a history of drug abuse. Autopsy, including toxicology testing, reveals no cause for death in a subset of this cohort. Objective.—To determine whether deaths with an undetermined cause and manner of death are associated with a history of drug abuse. Design.—Retrospective matched case-control study of 52 decedents whose cause of death remained undetermined following autopsy, matched 1:2 to a control group of living patients admitted for cholecystectomy according to age and date of death or procedure. Results.—Individuals whose cause of death was undetermined were 5.3 times (95% confidence interval, 1.9– 14.5) more likely to have a history of drug abuse than were patients with cholecystitis. Conclusions.—Decedents with a history of chronic drug abuse appear to be at an increased risk of dying by their chronic drug abuse, even in the absence of any anatomical or toxicologic finding at autopsy to account for death.

scholarly journals Everything you always wanted to know about sex and Neurology: neurological disability and sexuality

2018 ◽  
Vol 76 (7) ◽  
pp. 430-435 ◽  
Author(s):  
Alejandro Nasimbera ◽  
Julieta Rosales ◽  
Berenice Silva ◽  
Ricardo Alonso ◽  
Natalia Bohorquez ◽  
...  
Keyword(s):  
Sexual Dysfunction ◽  
Neurological Disorders ◽  
Neurological Diseases ◽  
Control Group ◽  
Cross Sectional ◽  
Main Variable ◽  
One Year ◽  
The Relationship ◽  
Control Study ◽  
Lateral Sclerosis

ABSTRACT Chronic neurological disorders generate disabilities affecting multiple aspects of life, including sexuality. Objective To describe the presence of sexual dysfunction and comorbidities in a population with chronic neurological disorders. To analyze the relationship between disability and sexual dysfunction. Methods A cross-sectional case-control study was carried out. Patients with amyotrophic lateral sclerosis (ALS), multiple sclerosis (MS), Parkinson’s disease (PD), and stroke of at least one year since the onset of symptoms were included, and compared with controls with no neurological disease, matched by age and sex. Results We included 71 participants: 29 controls, with a mean age of 49.4 years, and 42 patients with a mean age of 53.8 years. Sexual dysfunction was present in 22.5% of the controls and 77.5% of the patients. A statistically significant relationship between sexual dysfunction and disability was found in the logistic regression analysis (OR = 20.38, 95%CI: 2.5 –165.86). Conclusions Disability proved to be the main variable related to the presence of sexual dysfunction. Patients with ALS had the worst rates of sexual dysfunction. Patients with MS were similar to the control group. As for the PD group, no patient had normal sexuality. Finally, in stroke patients, the presence of comorbidities and their treatment may have negatively influenced sexuality. These findings showed that patients with chronic neurological diseases have sexual dysfunction and underscore the need for neurologists to know and address this problem.

scholarly journals Synergistic Effect of the MTHFR C677T and EPHX2 G860A Polymorphism on the Increased Risk of Ischemic Stroke in Chinese Type 2 Diabetic Patients

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Liang Ma ◽  
Yongwei Jiang ◽  
Xiaomu Kong ◽  
Meihua Yan ◽  
Tingting Zhao ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Mthfr C677t ◽  
Combined Effect ◽  
Control Group ◽  
Diabetic Patients ◽  
Type 2 Diabetic Patients ◽  
Increased Risk ◽  
The Relationship ◽  
Control Study

The aim of this study was to investigate the relationship between the combined effect of MTHFR C677T (rs1801133) and EPHX2 G860A (rs751141) polymorphism and ischemic stroke in Chinese T2DM patients. This case-control study included a total of 626 Chinese T2DM patients (236 T2DM patients with ischemic stroke and 390 T2DM patients without ischemic stroke). The rs1801133 and rs751141 were genotyped using real-time polymerase chain reaction. Statistical analysis was performed with SPSS 17.0. Results showed that the combined effect of MTHFR TT and EPHX2 GG or GA + AA genotype has a higher risk of ischemic stroke compared with the control group (combined effect of MTHFR CC and EPHX2 GA + AA genotypes; OR = 3.46 and OR = 3.42, resp.; P=.001 and P=.002, resp.). The A allele showed marked association with a lower risk of ischemic stroke in patients with the lowest Hcy levels under additive, recessive, and dominant genetic models (OR = 0.45, OR = 0.11, and OR = 0.44, resp.; P=.002, P=.035, and P=.008, resp.), which was not observed in medium or high Hcy level groups. In conclusion, the T allele of rs1801133 and the G allele of rs751141 may be risk factors of ischemic stroke in the Chinese T2DM population.

scholarly journals Significance of the Viral Load of High-risk Hpv in the Diagnosis and Prediction of Cervical Lesions: A Retrospective Study

2020 ◽  
Author(s):  
Yang Liu ◽  
Changjun Xu ◽  
Jing Pan ◽  
Chunyi Sun ◽  
Honglin Zhou
Keyword(s):  
Cervical Cancer ◽  
Viral Load ◽  
Retrospective Study ◽  
High Risk ◽  
High Viral Load ◽  
Control Group ◽  
Cervical Lesions ◽  
Hpv Dna ◽  
Cin Iii ◽  
Hpv Viral Load

Abstract Background: The significance of HPV viral load in the detection of cervical lesions is still controversial. This study analyzed the correlation between the high-risk (HR)-HPV viral load and different cervical lesion degrees.Methods: This was a retrospective study of the patients who first visited the hospital between January 2015 and June 2018. Patients with positive HR-HPV were screening for cervical cancer. The HR-HPV DNA load was measured by the second generation hybrid capture (HC2) technology. The patients grouped as normal, CIN I, CIN II, CIN III, and cervical cancer. Multivariable logistic regression was performed to explore the association between HR-HPV DNA load and cervical lesions.Results: Finally, 265 patients were grouped as normal (n=125), CIN I (n=51), CIN II (n=23), CIN III (n=46), and cervical cancer (n=20). Among them, 139 (52.5%) had a low viral load, 90 (34.0) had a moderate viral load, and 36 (13.4%) had a high viral load. Taking the normal control group as a reference, a high viral load was an independent factor for CIN I (CIN I: OR=3.959, 95%CI: 1.300-12.059, P=0.015) CIN II (OR=6.211, 95%CI: 1.641-23.513, P=0.007), CIN III (OR=7.002, 95%CI: 2.308-21.244, P=0.001), and cervical cancer (OR=9.439, 95%CI: 2.394-37.22, P=0.001).Conclusion: Cervical lesions are closely related to HR-HPV infection. Higher HR-HPV viral load in cervical lesions was associated with a higher risk of high-grade cervical lesions.

scholarly journals The Relationship of Physical Activity and Obesity with the Incidence of Hypertension in Adults Aged 26-45 Years in Medan

2019 ◽  
Vol 7 (20) ◽  
pp. 3464-3468 ◽  
Author(s):  
Elida Normiaty Purba ◽  
Heru Santosa ◽  
Fazidah Aguslina Siregar
Keyword(s):  
Physical Activity ◽  
Healthy Lifestyle ◽  
Control Group ◽  
Case Group ◽  
Eating Pattern ◽  
Proportional Allocation ◽  
Simple Logistic ◽  
Relationship Of ◽  
The Relationship ◽  
Control Study

BACKGROUND: The incidence rate of hypertension is increasing in Indonesia concerning unhealthy behaviours such as unhealthy physical activity and eating pattern which trigger obesity. In Indonesia, the prevalence of hypertension in > 18-year-old people was 34.1% in 2018. AIM: The objective of the research was to find out the relationship between physical activity and obesity with the incidence of hypertension in adults (26-45 years old) in Medan. METHODS: The research was done in Medan, using a case-control study design. The samples were 150 hypertension patients, taken by using proportional allocation: 75 of them were in the case group and the other 75 of them were in the control group. The data were gathered by conducting interviews, measurement, and questionnaires and analysed by using simple logistic regression test. RESULTS: The result of the research showed that there was significant relationship of physical activity (p = 0.000; OR = 3.6; 95% CI, 1.802-7.270) and obesity (p = 0.000; OR = 4; 95% CI, 2.030-7.900) with the incidence of hypertension in 26-45-year-old respondents. CONCLUSION: Make a habit of a healthy lifestyle in their daily life by doing physical activity regularly and good eating pattern to forestall hypertension.

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