scholarly journals Characterization of buccal cell DNA after exposure to azo compounds: a cross-sectional study

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 1053
Author(s):  
Juni Handajani ◽  
Urfa Tabtila ◽  
Nadia Rully Auliawati ◽  
Abdul Rohman
Keyword(s):  
Principal Component ◽  
Cross Sectional Study ◽  
Exposed Group ◽  
Azo Compounds ◽  
Buccal Cell ◽  
Control Group ◽  
Synthetic Dyes ◽  
Sectional Study ◽  
Cross Sectional ◽  
Principle Component

Background: Azo compounds, containing naphthol and diazonium salts, are synthetic dyes widely used in the batik industry. Azo compounds are considered toxic when they are exposed to human tissue. The purpose of this study was to analyze buccal cell DNA exposed to azo compounds in batik workers. Methods: A cross-sectional study involving 20 male subjects divided into two groups (n=10 group), namely azo-exposed and non-exposed (control group). Inclusion criteria were batik workers of the colouring division who have been exposed to azo for at least 5 years. Buccal cells were taken using cytobrush then DNA were isolated from buccal cell. DNA isolation was done by buccal DNA kit, while the purity and concentration of the DNA was determined using spectrophotometer and electrophoresis. Results: The azo-exposed group revealed higher purity DNA than those in the control group. The purity of the DNA in the azo-exposed group and control group was 0.61±0.93 and 0.21±0.09, respectively, while the concentration of DNA was of 59.02 and 19.35 ng/UL, respectively. The ratio at 260/280 nm was 1.84-1.94 (azo-exposed) and 1.85-1.92 (control). Principal component analysis using the first principle component (PC1) and second principle component (PC2) could successfully classify subjects in the control and azo-exposed groups. Conclusion: Characteristics of DNA could be used as an indication of exposure to azo compounds in workers of batik industries.

scholarly journals Characterization of buccal cell DNA after exposure to azo compounds: a cross-sectional study

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 1053
Author(s):  
Juni Handajani ◽  
Urfa Tabtila ◽  
Nadia Rully Auliawati ◽  
Abdul Rohman
Keyword(s):  
Principal Component ◽  
Cross Sectional Study ◽  
Exposed Group ◽  
Azo Compounds ◽  
Buccal Cell ◽  
Control Group ◽  
Synthetic Dyes ◽  
Sectional Study ◽  
Cross Sectional ◽  
Principle Component

Background: Azo compounds, containing naphthol and diazonium salts, are synthetic dyes widely used in the batik industry. Azo compounds are considered toxic when they are exposed to human tissue. The purpose of this study was to analyze buccal cell DNA exposed to azo compounds in batik workers. Methods: A cross-sectional study involving 20 male subjects divided into two groups (n=10 group), namely azo-exposed and non-exposed (control group). Inclusion criteria were batik workers of the colouring division who have been exposed to azo for at least 5 years. Buccal cells were taken using cytobrush then DNA were isolated from buccal cell. DNA isolation was done by buccal DNA kit, while the purity and concentration of the DNA was determined using spectrophotometer and electrophoresis. Results: The azo-exposed group revealed higher purity DNA than those in the control group. The purity of the DNA in the azo-exposed group and control group was 0.61±0.93 and 0.21±0.09, respectively, while the concentration of DNA was of 59.02 and 19.35 ng/UL, respectively. The ratio at 260/280 nm was 1.84-1.94 (azo-exposed) and 1.85-1.92 (control). Principal component analysis using the first principle component (PC1) and second principle component (PC2) could successfully classify subjects in the control and azo-exposed groups. Conclusion: Characteristics of DNA could be used as an indication of exposure to azo compounds in workers of batik industries.

scholarly journals Assessing the suitability of 8-OHdG and micronuclei as genotoxic biomarkers in chromate-exposed workers: a cross-sectional study

BMJ Open ◽  
2014 ◽  
Vol 4 (10) ◽  
pp. e005979 ◽  
Author(s):  
Ping Li ◽  
Yongen Gu ◽  
Shanfa Yu ◽  
Yang Li ◽  
Jinglin Yang ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Micronucleus Test ◽  
Cross Sectional Study ◽  
Exposed Group ◽  
Control Group ◽  
Sectional Study ◽  
Cross Sectional ◽  
Positive Correlation ◽  
Inductively Coupled ◽  
Positive Correlations

ObjectivesWe aimed to investigate suitable conditions of 8-hydroxy-2′-deoxyguanosine (8-OHdG) and micronucleus (MN) as genotoxic biomarkers at different levels of occupational chromate exposure.DesignA cross-sectional study was used.Participants84 workers who were exposed to chromate for at least 1 year were chosen as the chromate exposed group, while 30 non-exposed individuals were used as controls.Main outcome measuresEnvironmental and biological exposure to chromate was respectively assessed by measuring the concentration of chromate in the air (CrA) and blood (CrB) by inductively coupled plasma mass spectrometer (ICP-MS) in all participants. MN indicators, including micronucleus cell count (MNCC), micro-nucleus count (MNC), nuclear bridge (NPB) and nuclear bud (NBUD) were calculated by the cytokinesis-block micronucleus test (CBMN), while the urinary 8-OHdG was measured by the ELISA method and normalised by the concentration of Cre.ResultsCompared with the control group, the levels of CrA, CrB, MNCC, MNC and 8-OHdG in the chromate-exposed group were all significantly higher (p<0.05). There were positive correlations between log(8-OHdG) and LnMNCC or LnMNC (r=0.377 and 0.362). The levels of LnMNCC, LnMNC and log (8-OHdG) all have parabola correlations with the concentration of CrB. However, there was a significantly positive correlation between log (8-OHdG) and CrB when the CrB level was below 10.50 µg/L (r=0.355), while a positive correlation was also found between LnMNCC or LnMNC and CrB when the CrB level was lower than 9.10 µg/L (r=0.365 and 0.269, respectively).ConclusionsMN and 8-OHdG can be used as genotoxic biomarkers in the chromate-exposed group, but it is only when CrB levels are lower than 9.10 and 10.50 µg/L, respectively, that they can accurately reflect the degree of genetic damage.

scholarly journals Occupational manganese exposure, reproductive hormones, and semen quality in male workers: A cross-sectional study

2018 ◽  
Vol 35 (1) ◽  
pp. 53-62 ◽  
Author(s):  
Haibo Yang ◽  
Jifeng Wang ◽  
Xinxin Yang ◽  
Fengdi Wu ◽  
Zhipeng Qi ◽  
...  
Keyword(s):  
Semen Quality ◽  
Cross Sectional Study ◽  
Reproductive Hormones ◽  
Exposed Group ◽  
Control Group ◽  
Sectional Study ◽  
Cross Sectional ◽  
Progressive Motility ◽  
Linear Association ◽  
Male Workers

It has been found that exposure to manganese (Mn) could induce reproductive dysfunction, but its occupational risk in male workers is unclear. This study aims to assess the association of occupational Mn exposure with reproductive hormones and semen quality in a cross-sectional study. Urinary Mn, semen quality, and reproductive hormones were explored in 84 male workers occupationally exposed to Mn and 92 referents. Multiple linear regression analyses were used to assess the relationship. Urinary Mn levels in Mn-exposed workers ranged from 0.56 to 34.25 µg/L, and the average level was 15.92 ± 8.49 µg/L. Compared with the control group, gonadotropin-releasing hormone (GnRH) levels and luteinizing hormone (LH) levels increased significantly and the levels of testosterone (TSTO) decreased significantly in the Mn-exposed group. There was a significant positive linear association between urinary Mn and GnRH and LH, while the linear association between urinary Mn and TSTO was negative. Sperm progressive motility and total motility decreased significantly in the Mn-exposed group. There was a significantly negative linear association between urinary Mn and sperm progressive motility and total motility. In conclusion, occupational Mn exposure was inversely associated with reproductive health of male workers, resulting in the abnormality of hormones secretion and decrease of sperm motility.

Psychosocial Impact of Covid-19 Pandemic on Frontline Healthcare Workers in Pakistan: A Cross-Sectional Study

2020 ◽  
Author(s):  
Quratul-Ain Zafar
Keyword(s):  
Data Collection ◽  
Emotional Distress ◽  
Healthcare Workers ◽  
Cross Sectional Study ◽  
Psychosocial Impact ◽  
Control Group ◽  
Study Group ◽  
Sectional Study ◽  
Cross Sectional ◽  
Frontline Healthcare Workers

Objective: The purpose of this study was to evaluate the impact of the COVID-19 pandemic on frontline healthcare workers in Pakistan in terms of psychological factors emotional distress, insomnia, and burnout. Study Design: Observational cross-sectional study. Place and Duration of Study: This study was conducted at different hospitals across Pakistan and data collection was carried out from 15th June 2020 till 15th August 2020. Material and Methods: This was a questionnaire-based study aiming to compare the levels of burnout and emotional distress between frontline COVID-19 and non-COVID-19 healthcare workers. Any physician, nurse, and other healthcare workers were recruited from emergency care units and Covid-19 care units (target group), and non-COVID-19 care units (control group). Participation was voluntary and participants had to complete self-reported questionnaires and scales. A mixed-mode data collection was carried out, either in paper or web-based form to ensure maximum participation. Results: The independent t-test showed a statistically significant difference between the two groups regarding depression, stress, and insomnia. The study group showed higher scores for these factors than the control group. Chi-square test of association revealed significant scores of burnout and professional fulfillment in both groups. There was a higher prevalence of burnout in the study group than in the control group. Conclusion: This study concludes that there was a significant psychosocial impact of the Covid-19 pandemic in the frontline healthcare workers measured in terms of emotional distress, insomnia, and burnout.

Prevalence of Thyroid Diseases in an Occupationally Radiation Exposed Group: A Cross-Sectional Study in a University Hospital of Southern Italy

2019 ◽  
Vol 19 (6) ◽  
pp. 803-808 ◽  
Author(s):  
Luigi Vimercati ◽  
Luigi De Maria ◽  
Francesca Mansi ◽  
Antonio Caputi ◽  
Giovanni M. Ferri ◽  
...  
Keyword(s):  
Ionizing Radiation ◽  
Healthcare Workers ◽  
Southern Italy ◽  
Cross Sectional Study ◽  
Thyroid Diseases ◽  
University Hospital ◽  
Control Group ◽  
Sectional Study ◽  
Cross Sectional ◽  
Exposed Workers

Background: Thyroid diseases occur more frequently in people exposed to ionizing radiation, but the relationship between occupational exposure to ionizing radiation and thyroid pathologies still remains unclear. Objective: To evaluate the prevalence of thyroid diseases in healthcare workers exposed to low-level ionizing radiation compared with a control group working at the University Hospital of Bari, Southern Italy, and living in the same geographical area, characterized by mild iodine deficiency. Methods: We ran a cross-sectional study to investigate whether healthcare workers exposed to ionizing radiation had a higher prevalence of thyroid diseases. Four hundred and forty-four exposed healthcare workers (241 more exposed, or “A Category”, and 203 less exposed, or “B Category”) and 614 nonexposed healthcare workers were enrolled during a routine examination at the Occupational Health Unit. They were asked to fill in an anamnestic questionnaire and undergo a physical examination, serum determination of fT3, fT4 and TSH, anti-TPO ab and anti-TG ab and ultrasound neck scan. Thyroid nodules were submitted to fine needle aspiration biopsy when indicated. Results: The prevalence of thyroid diseases was statistically higher in the exposed workers compared to controls (40% vs 29%, adPR 1.65; IC95% 1.34-2.07). In particular, the thyroid nodularity prevalence in the exposed group was approximately twice as high as that in the controls (29% vs 13%; adPR 2.83; IC95% 2.12-3.8). No statistically significant association was found between exposure to ionizing radiation and other thyroid diseases. Conclusion: In our study, mild ionizing radiation-exposed healthcare workers had a statistically higher prevalence of thyroid diseases than the control group. The results are likely due to a closer and more meticulous health surveillance programme carried out in the ionising radiation-exposed workers, allowing them to identify thyroid alterations earlier than non-exposed health staff.

Effect of Medialization of the Trochlear Groove and Lateralization of the Tibial Tubercle on TT-TG Distance: A Cross-sectional Study of Dysplastic and Nondysplastic Knees

2021 ◽  
pp. 036354652098781
Author(s):  
Mathias Paiva ◽  
Lars Blønd ◽  
Per Hölmich ◽  
Kristoffer Weisskirchner Barfod
Keyword(s):  
Trochlear Dysplasia ◽  
Cross Sectional Study ◽  
Magnetic Resonance Images ◽  
Tibial Tubercle ◽  
Control Group ◽  
Trochlear Groove ◽  
Sectional Study ◽  
Cross Sectional ◽  
Mean Values ◽  
The Mean

Background: Tibial tubercle–trochlear groove (TT-TG) distance is often used as a measure of lateralization of the TT and is important for surgical planning. Purpose: To investigate if increased TT-TG distance measured on axial magnetic resonance images is due to lateralization of the TT or medialization of the TG. Study Design: Cross-sectional study; Level of evidence, 3. Methods: A total of 84 knees (28 normal [NK], 28 with trochlear dysplasia [TD], and 28 with patellar dislocation without TD [PD]) were examined. The medial border of the posterior cruciate ligament (PCL) was chosen as the central anatomic landmark. The distance from the TT to PCL (TT-PCL) was measured to examine the lateralization of the TT. The distance from the TG to the PCL (TG-PCL) was measured to examine the medialization of the TG. Between-group differences were investigated by use of 1-way analysis of variance. Results: The mean values for TT-TG distance were 8.7 ± 3.6 mm for NK, 12.1 ± 6.0 mm for PD, and 16.7 ± 4.3 mm in the TD group ( P < .01). The mean values for TT-PCL distance were 18.5 ± 3.6 mm for NK, 18.5 ± 4.5 mm for PD, and 21.2 ± 4.2 mm in the TD group ( P = .03). The mean values for TG-PCL distance were 9.6 ± 3.0 mm for NK, 7.1 ± 3.4 mm for PD, and 5.1 ± 3.3 mm in the dysplastic group ( P < .01). Conclusion: The present results indicate that increased TT-TG distance is due to medialization of the TG and not lateralization of the TT. Knees with TD had increased TT-TG distance compared with the knees of the control group and the knees with PD. The TT-PCL distance did not differ significantly between groups, whereas the TG-PCL distance declined with increased TT-TG.

scholarly journals Prevalence of risk factors for stuttering among boys: analytical cross-sectional study

2014 ◽  
Vol 132 (3) ◽  
pp. 152-157 ◽  
Author(s):  
Cristiane Moço Canhetti Oliveira ◽  
Paula Roberta Nogueira
Keyword(s):  
Risk Factors ◽  
Cross Sectional Study ◽  
Physical Stress ◽  
Control Group ◽  
Sectional Study ◽  
Quality Factors ◽  
Hearing Disorders ◽  
Cross Sectional ◽  
Family Attitudes ◽  
Developmental Stuttering

CONTEXT AND OBJECTIVE:There have been few studies on the risk factors for subgroups of stuttering. The aim of this study was to characterize the risk factors for developmental familial stuttering among boys who stutter and who do not stutter, such as disfluency types, associated quality and communication factors, emotional and physical stress, familial attitudes and personal reactions.DESIGN AND SETTING:Analytical cross-sectional study with a control group, performed at the Fluency Studies Laboratory of the Department of Speech and Hearing Disorders of a public university.METHODS: The parents of 40 age-matched stuttering and non-stuttering boys took part in this study. The participants were divided into two groups: stuttering children (SC) and non-stuttering children (NSC), with ages between 6 years 0 months and 11 years 11 months. Initially, all of the participants underwent a fluency assessment and then data were gathered using the Protocol for the Risk of Developmental Stuttering.RESULTS:There were no differences in the physical stress distribution factors and personal reactions between the groups. Inappropriate familial attitudes were presented by 95% of the SC and 30% of the NSC. Four risk factors analyzed were not shown by the NSC, namely stuttering-like disfluency, quality factors, physical stress and emotional stresses.CONCLUSIONS:The findings suggest that the presence of stuttering-like disfluency, associated quality and communication factors, emotional stress and inappropriate family attitudes are important risk factors for familial developmental stuttering among boys.

scholarly journals Variables associated with family breakdown in healthy and obese/ overweigh adolescents

2014 ◽  
Vol 32 (1) ◽  
pp. 70-77
Author(s):  
Carla Cristina J. N. de Almeida ◽  
Paula de Oliveira Mora ◽  
Valmir Aparecido de Oliveira ◽  
Camila Aparecida Joao ◽  
Carolina Regina Joao ◽  
...  
Keyword(s):  
Public School ◽  
Cross Sectional Study ◽  
Control Group ◽  
Sectional Study ◽  
Cross Sectional ◽  
Obese Adolescents ◽  
Significant Difference ◽  
Family Breakdown

Objective: To evaluate the presence of family breakdown factors among eutrophic and overweight/obese adolescents. Methods: Cross-sectional study of 242 students aged between 14 and 19 years old, from a public school. Each student was weighed, measured and answered a questionnaire with closed questions addressing the presence of family breakdown factors. The adolescents were divided in two groups: euthophic and overweight/obese. The answers of both groups were compared by Fisher's exact and Mann-Whitney tests. Results: There was no statistically significant difference in the prevalence of the studied factors between the two groups. Comparing the number of positive answers (presence of family breakdown factors) and negative ones (absence of family breakdown factors), no difference was observed between the groups. Conclusions: The inclusion of a control group showed that factors of family breakdown, usually identified as associated with obesity in adolescents, may also be present in eutrophic adolescents.

scholarly journals THE IMPACT OF COMBINATION OF BREASTFEEDING AND EFFLEURAGE MASSAGE IN REDUCING PAIN RESPONSE IN INFANTS INDUCED BY BLOOD SAMPLING IN C-REACTIVE PROTEIN TEST: AN OBSERVATIONAL CROSS-SECTIONAL STUDY

2018 ◽  
Vol 4 (2) ◽  
pp. 242-248
Author(s):  
Alfi Maziyah ◽  
Diyah Fatmasari ◽  
Desak Made Wenten Parwati ◽  
Rr. Sri Endang Pujiastuti
Keyword(s):  
Intervention Group ◽  
Cross Sectional Study ◽  
Blood Sampling ◽  
Control Group ◽  
Pain Response ◽  
Sectional Study ◽  
C Reactive Protein ◽  
Cross Sectional ◽  
Reactive Protein ◽  
Massage Group

Background: C-reactive protein test is one of clinical assessments to minimize risks of infection in infants. However, its procedure may cause pain. Pain in the infant may result in negative metabolic behavior, physiology and metabolic response. Objective: This study was to describe the infant's pain response by administering a combination of breastfeeding and an effleurage massage on the blood sampling procedure of C-reactive protein examination.         Methods: This was a descriptive observational cross-sectional study. There were 30 infants selected using consecutive sampling technique, which 15 samples assigned in an intervention group (combination of breastfeeding and effleurage massage) and a control group. Premature Infant Pain Profile (PIPP) instrument was used to measure pain. Univariate analysis was performed with the aim to describe data in mean and median.Results: The average of pain response at 1-minute observation in the combination of breastfeeding and effleurage massage group was 7.47 ± 1.356, and the average of pain response in the control group was 10.80 ± 1.897. The average pain at 5-minutes in the intervention group was 3.53 ± 1.922 and control group was 6.00 ± 1.852. Conclusions: Pain responses in the combination of breastfeeding and effleurage massage group were lower than the pain response in the control group.

scholarly journals Profile of D-dimer in Uncomplicated Pregnancy

2019 ◽  
pp. 283-287
Author(s):  
Rahajuningsih Dharma ◽  
Mercy T. Panjaitan ◽  
Kanadi Sumapradja ◽  
Rianto Setiabudy
Keyword(s):  
Pregnant Women ◽  
Clinical Pathology ◽  
Cross Sectional Study ◽  
Control Group ◽  
Sectional Study ◽  
Cross Sectional ◽  
Uncomplicated Pregnancy ◽  
D Dimer

Abstract Objective: To obtain the profile of D-dimer in uncomplicated pregnancy. Methods: A cross sectional study was done on 90 uncomplicated pregnant women consisted of 30 women in each trimester and 30 healthy, nonpregnant women as control group from July to August 2012. D-dimer level was measured by particle enhanced immunoturbidimetry method using Innovance D-dimer and Sysmex CA 1500 in the Department of Clinical Pathology, Dr. Cipto Mangunkusumo Hospital, Jakarta. Results: All women in the control group showed normal D-dimer level (<0.,5 mg/L FEU). The median and range of D-dimer level in the 1st trimester, 2nd trimester, and 3rd trimester were 0.42 mg/L FEU and 0.1-1.07 mg/L FEU, 0.97 mg/L FEU and  0.6-3.34 mg/L FEU, and 1.56 mg/L FEU and  0.69-3.75 mg/L FEU, respectively.  Increased D-dimer level was found in 27% of pregnant women in 1st trimester, 87% in 2nd trimester, and 100% in 3rd trimester. Conclusion: Increased D-dimer level was found in  27% of pregnant women in 1st trimester, 87% in 2nd trimester, and  100% in 3rd trimester. The range of D-dimer level in the 1st trimester was 0.1-1.07 mg/L FEU, in the 2nd trimester was 0.6-3.34 mg/L FEU, and in the 3rd trimester was 0.69-3.75 mg/L FEU. Keywords: D-dimer, trimester, uncomplicated pregnancy   Abstrak Tujuan : Untuk mendapatkan profil  D-dimer pada kehamilan tanpa komplikasi. Metode : Penelitian potong lintang dilakukan pada 90 perempuan hamil tanpa komplikasi yang terdiri atas 30 perempuan pada tiap trimester dan 30 perempuan sehat yang tidak hamil, sebagai kelompok kontrol dari bulan Juli sampai Agustus 2012. Kadar D-dimer diukur dengan cara particle enhanced immunoturbidimetry  menggunakan reagen InnovanceÒ D-dimer dan koagulometer SysmexÒ CA 1500 di  Deparemen Patologi Klinik, Rumah Sakit Umum Pusat Nasional Dr. Cipto Mangunkusumo, Jakarta. Hasil: Seluruh perempuan dalam kelompok kontrol mempunyai kadar D-dimer dalam batas normal (<0.,5 mg/L FEU). Median (rentang) kadar D-dimer  pada trimester pertama, kedua, dan ketiga berturut-turut  0.42 mg/L FEU  (0.1-1.07 mg/L FEU), 0.97 mg/L FEU (0.6-3.34 mg/L FEU), dan 1.56 mg/L FEU   (0.69-3.75 mg/L FEU).  Peningkatan kadar D-dimer ditemukan pada 27% perempuan hamil trimester pertama, 87%  trimester kedua, dan pada 100%  trimester ketiga.   Kesimpulan: Peningkatan kadar  D-dimer ditemukan pada  27% perempuan hamil trimester pertama,  87% trimester kedua dan   100% pada trimester ketiga.  Rentang kadar D-dimer level pada trimester pertama adalah 0.1-1.07 mg/L FEU, pada trimester kedua  0.6-3.34 mg/L FEU, dan pada trimester ketiga  0.69-3.75 mg/L FEU. Kata kunci: D-dimer, kehamilan tanpa komplikasi, trimester

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