Significant Reverse Correlation Research Articles

The Effect of Substance Abuse on Domestic Violence

find out the relationship between drug abuse and domestic violence . descriptive study design. A sample of (50) couples were introduced. A two questionnaire self-report w used to gather data from drug users and abused women .data were gathered in 2024 between January and March The results indicate that the average age of the male is 27±4, then 24 ±4 female, are married, and (38%) were graduated from secondary school while 36% of their wives are graduated from intermediate schools. 82% of clients with substance use are working with free works while 78% of their wives are housewives. 42% of participants are within monthly income of 601000 – 900000 Iraqi dinars. 60% of wives betrayed by their clients with substance use problems. there is positive significant relationship between substance use among clients and domestic violence among their wives at p-value= .037.Among substance abuse and domestic violence are positive correlated, as shown by significant reverse correlation with p-valy67uue=. 037. Domestic abuse is prevalent and unacceptable in both lifetime and present times. Regardless of age, economic standing, or educational attainment, women will at some point in their lives become victims of abuse. Abuse of drugs increases the chance of violence. Spreading the culture of the danger of drugs and treatment from them by opening rehabilitation centers in various cities and villages Focus on protecting women and developing work to protect them from the risk of violence in coordination with community police.

Evaluation of the predictors and frequency of silent hypoxemia in COVID-19 patients and the gap between pulse oximeter and arterial blood gas levels: A cross-sectional study.

Silent hypoxemia is when patients do not experience breathing difficulty in the presence of alarmingly low O2 saturation. It could cause rapid deterioration and higher mortality rates among patients, so prompt detection and identifying predictive factors could result in significantly better outcomes. This study aims to document the evidence of silent hypoxemia in patients with COVID-19 and its clinical features. A total of 78 hospitalized, nonintubated patients with confirmed COVID-19 infection were included in this study. Their O2 saturation was measured with a pulse oximeter (PO), and arterial blood gas (ABG) was taken. Demographic and clinical features were recorded. The Borg scale was used to evaluate dyspnea status, and patients with a score of less than two accompanied by O2 saturation of less than 94% were labeled as silent hypoxic. Univariate analysis was utilized to evaluate the correlation between variables and their odds ratio (OR) and 95% confidence interval (CI). Silent hypoxemia was observed in 20 (25.6%) of the participants. The average difference between the PO and ABG methods was 4.36 ± 3.43. Based on regression analysis, dyspnea and respiratory rate demonstrated a statistically significant correlation with the O2 saturation difference between PO and ABG (OR: 2.05; p = 0.026; 95% CI: 0.248-3.847 and OR: 0.144; p = 0.048, 95% CI: 0.001-0.286). Furthermore, the Borg scale (OR: 0.29; p = 0.009; 95% CI: 0.116-0.740) had a significant reverse correlation with silent hypoxia. Silent hypoxemia can be a possible complication that affects some COVID-19 patients. Further care should be bestowed upon the younger population and those with underlying neurological or mental illnesses. Furthermore, the respiratory rate, pulse oximeter, and arterial blood gas O2 levels should be considered alongside each other.

Up-regulation of plasma miRNA-21 and miRNA-422a in postmenopausal osteoporosis.

Many researchers focused on diverse miRNAs in the progression of osteoporosis in postmenopausal women. This study aimed to evaluate the association between plasma miRNA-21-5p and miRNA-422a with osteoporosis in postmenopausal women. This cross-sectional comparative study was performed on 126 randomly selected postmenopausal women aged 50-65, including 65 osteoporotic and 61 normal-bone mineral density (BMD) women. miRNA-21 and miRNA-422a were identified using qRT-PCR in these women. BMD was evaluated by the dual-energy X-ray absorptiometry method. A binary logistic regression model adjusted for confounders was used to evaluate the associations between plasma miRNAs' expression levels and osteoporosis. The Area Under Curve (AUC) was calculated to differentiate low BMD in the postmenopausal period using Receiver-Operator Characteristic (ROC) curves. miRNA-21 and miRNA-422a were significantly up-regulated in osteoporotic compared to non-osteoporotic postmenopausal women. The expression levels of miRNA-21 and miRNA-422a indicated a significant reverse correlation with both lumbar spine and femoral neck density. After adjusting the confounders, the likelihood of osteoporosis in the postmenopausal women with under the median plasma levels of miRNA-21 (OR = 0.025; 95% CI: 0.003 to 0.198, p<0.001) and miRNA-422a (OR = 0.037; 95% CI: 0.007 to 0.211, p<0.001) was significantly less than the women with the levels above the median. There were significant inverse correlations between miRNA-21 (p<0.001, r = -0.511) and miRNA-422a (p<0.001, r = -0.682) with BMD-lumbar spine as well as an inverse correlation between miRNA-21(p<0.001, r = -0.374) and miRNA-422a (p<0.001, r = -0.602) with BMD-femoral neck. The AUC (95%CI) for miRNA-21 and miRNA-422a was 0.84 (0.77 to 0.91) and 0.98 (0.96 to 0.99), respectively. ROC analysis illustrated that sensitivity and specificity values were 83.1% and 74%, respectively, for miRNA-21 at the cut-off point of 3.38. Also, at the cut-off point of 2.86, a sensitivity of 94% as well as a specificity of 89% was determined for miRNA-422a. This study indicated that the odds of osteoporosis in postmenopausal women increased with the higher expression of plasma miRNA-21 and miRNA-422a.

Lower vitamin D levels are associated with the pathogenesis of inflammatory bowel diseases.

Vitamin D plays a role in regulating immune homeostasis, inflammation and has an impact on the pathogenesis of inflammatory bowel diseases (IBD). IBD has a multifactorial pathogenesis primarily associated with immune dysregulation, dysbiosis, structurally altered intestinal mucosa, and genetic factors. The immunomodulatory function of this vitamin is linked to its control over innate and adaptive immunity, facilitated through its nuclear vitamin D receptor, leading to the inhibition of nuclear factor kappa-B. This study aimed to investigate serum vitamin D levels in patients with IBD compared to healthy individuals and to evaluate the relationship between vitamin D and inflammatory markers. Cross-sectional study. The study included 106 participants divided into 2 groups: patients with IBD (92), and healthy controls (14). The diagnosis of IBD was based on clinical, laboratory, fecal, endoscopic, and histological findings, following the European guidelines for diagnosis and follow-up ECCO-ESGAR guidelines for diagnostic assessment of IBD from 2019. Serum vitamin D levels were measured along with laboratory tests, imaging, and endoscopic examinations. IBD activity was evaluated using the Montreal classification and clinical and endoscopic indices. Data analysis involved calculating the mean, minimum, and maximum values, standard deviation, and Pearson coefficient. The level of statistical significance for this study was set at P < .05. The study found a prevalence of vitamin D deficiency in 32.6% of patients with IBD, while 66.3% had insufficiency, as compared with healthy individuals. The mean levels of vitamin D in UC and CD were 16 ± 8.6 ng/mL, whereas in the control healthy group, they were 26 ± 9.73 ng/mL. A statistically significant reverse correlation was observed between lower vitamin D levels and higher levels of the inflammatory markers. The study concluded that IBD patients exhibit lower levels of vitamin D, which is associated with inflammation and may contribute to the pathogenesis of the disease.

Correlation of Circulating Cathelcidin Level and Inflammatory Bowel Disease Activity

Abstract Background Inflammatory bowel diseases (IBDs), which include Crohn’s disease (CD) and ulcerative colitis (UC), are a group of idiopathic, chronic and relapsing inflammatory disorders of the gastrointestinal tract, whose incidence and prevalence has been increasing in the last decade. Objective To correlate circulating cathelicidin levels with mucosal disease activity in patients with IBD. Patients and Methods This case control cross sectional study was conducted on 45 adult subjects referred to Gastrointestinal Endoscopy and Liver Unit, EL-Haram Hospital.40 of the patients had IBD, the other 40 were non IBD patients studied as case control. All subjects were submitted to complete medical history, physical examination, laboratory investigations, colonoscopic examination and cathelicidin serum level. Results Our results showed that there was no statistically significant difference between both studied groups regarding both age and sex distribution. In this study we found highly significant decrease in Hemoglobin level in cases group compared to control group (p value &amp;lt; 0.001). Also, there was significant increase in platelets level among cases group compared to control (p value &amp;lt; 0.05). Also, we found that serum albumin was decreased among IBD patients compared to control. Conclusion Serum Cathelicidin has shown significant increase in patients with IBD activity. Serum cathelicidin levels showed statistically significant reverse correlation with Partial Mayo Scores of severity in UC patients. Serum cathelicidin levels showed Non-statistically significant correlation with Harvey Bradshaw Indices of severity in CD patients. Co-evaluation of LL-37 and CRP levels was more accurate than CRP alone or LL-37 alone in the correlation with Mayo Endoscopic Score of UC patients.

Impact of pulmonary valve replacement on left and right ventricular function using strain analysis, in children with repaired tetralogy of Fallot

BackgroundIn repaired Tetralogy of Fallot (rTOF), pulmonary regurgitation and resulting right ventricular (RV) and left ventricular (LV) dysfunction are associated with adverse clinical outcomes. We performed an echocardiographic assessment of LV and RV function using Global Longitudinal Strain (GLS) and conventional echo method prior to and following Pulmonary Valvular Replacement (PVR) to help inform proper timing of operation.ResultsA total of 30 rTOF patients (12.17 ± 2.5 years, 70% male) were included. Regarding to LV function, the study revealed a significant reverse correlation between LV GLS (absolute value) and early (mean = 10.4 days) and late (mean = 7.4 months) postop LVEF. Paired T-Test showed significant difference between GLS of LV and RV before and late after operation (op), however, without significant changes early postop. Late postop significant improvements occurred in other conventional echo indices of LV and RV function as well. There was also a significant correlation between echo-measured LVEF & Fraction Area Change (RV FAC) and MRI-derived LVEF & RVEF, respectively.ConclusionIn this cross-sectional study in rTOF patients, RV and LV GLS as well as conventional echocardiographic indices regarding LV and RV function improved significantly after 6 months (mean = 7.4mo) following PVR.

Role of ultrasonography for evaluation of nerve recovery in repaired median nerve lacerations.

This study aimed to investigate whether ultrasonographic inspection of the repair site of median nerve lacerations may provide useful evidence about the functional outcome in the affected hand. Forty-three patients with complete transection of the median nerve at the distal forearm were examined at a median of 40.9 months after operation by detailed ultrasonographic imaging and clinical assessment of the affected hand by the Michigan Hand Questionnaire and Rosén-Lundborg Protocol to investigate the quality of nerve healing. The continuity of individual nerve fascicles was assessed and the cross-sectional area of the enlarged nerve at the repair site was measured and compared with the contralateral median nerve at the same level. An enlargement ratio for the repair site of each nerve was calculated and compared with the numeric results obtained from the two clinical tests. A statistically significant reverse correlation was observed between nerve enlargement and the functional results of the repaired nerve.Level of evidence: IV.

The dynamics of red Noctiluca scintillans in the coastal aquaculture areas of Southeast China.

Noctiluca scintillans (NS) adds an aesthetic appeal to many coastal areas because of their bioluminescence. An intense bloom of the red NS frequently occurs in the coastal aquaculture region of Pingtan Island in Southeastern China. However, when NS exceeds in abundance, it causes hypoxia which has devastating impacts on the aquaculture. This study was conducted in the Southeastern part of China with an aim to examine the relationship between the profusion of NS and its impacts on marine environment. Samples from four stations on Pingtan Island were collected for 12months (January to December 2018) and were later analyzed in laboratory against five parameters, namely temperature, salinity, wind speed, dissolved oxygen, and chlorophyll a. Results showed that the NS blooms were particularly active during the months of May and June in the Pingtan Island area. The seawater temperatures during that time were recorded between 20 and 28.8°C indicating the optimum survival temperature for NS. The NS bloom activity ceased above 28.8°C. A principal component analysis (PCA) indicated that the richness of NS was positively associated with temperature and salinity, whereas there was a significant reverse correlation between NS accumulation and wind speed. NS is a heterotrophic dinoflagellate and relies on the predation of algae for reproduction; therefore, a significant correlation was observed between NS abundance and chlorophyll a concentration, and an inverse correlation was observed between NS and phytoplankton abundance. Additionally, red NS growth was observed immediately following the diatom bloom, suggesting that phytoplankton, temperature, and salinity are the essential factors in the evolution, progression, and termination of NS growth.

Association of Complications During and After Carotid Body Tumor Resection with Tumor Size and Distance to the Base of Skull

Depending on the size and location of the tumor, carotid body tumor (CBT) resection can come with various complications, mostly intraoperative bleeding, and cranial nerve injuries. In the present study, we aim to evaluate two fairly new variables, tumor volume, and distance to the base of the skull (DTBOS), with operative complications of carotid body tumor (CBT) resection. Patients who underwent carotid body tumor surgery in Namazi hospital from 2015 to 2019 were studied using standard databases. Tumor characteristics and distance to the base of the skull were measured via computed tomography or Magnetic resonance imaging. Outcomes, including intraoperative bleeding and cranial nerve injuries, along with perioperative data were collected. A total of 42 cases of CBT were evaluated with an average age of 53.21±12.8 and mostly female (85.7%). Based on Shamblin scoring, 2 (4.8%) were classified as group I, 25 (59.5%) as group II, and 15 (35.7%) as group III. The amount of bleeding significantly increased with an increase in the Shamblin scores (P=0.031; median: I: 45cc; II: 250cc, III: 400cc). Also, there was a significant positive correlation between the size of the tumor and the estimated amount of bleeding (Correlation Coefficient = 0.660; P<0.001), and also a significant reverse correlation with between bleeding and DTBOS (Correlation Coefficient= -0.345; P=0.025). During the follow-up of the patients, six (14.3%) had abnormalities in their neurological evaluation. Receiver operating characteristic curve analysis revealed the size of tumor cutoff level 32.7 cm3 (3.2cm radius) to be most predictive of post-op neurological complication with an area under the curve=0.83, sensitivity=83.3%, specificity=80.6%, a negative predictive value= 96.7%, and positive predictive value of 41.7%, and an accuracy of 81.0%. Furthermore, based on the predictive power of the models in our study, we demonstrated that a combination model including the tumor size, DTBOS, along with the Shamblin score had the most predictive power for neurological complications. By evaluating CBT size and distance to the base of the skull, paired with the use of the Shamblin classification, a better, more insightful understanding of possible risks and complications of CBT resection can be obtained, leading to deserved levels of patient care.

Non-Surgical Periodontal Treatment Impact on Subgingival Microbiome and Intra-Oral Halitosis.

The purpose of this study was to characterize and compare subgingival microbiome before and after periodontal treatment to learn if any changes of the subgingival microbiome were reflected in intra-oral halitosis. We tested the hypothesis that intra-oral halitosis (Volatile sulfur compounds levels) correlates with corresponding subgingival bacterial levels before and after periodontal treatment. Twenty patients with generalized periodontitis completed the study. Subgingival plaque samples were collected at baseline and 6-8 weeks after nonsurgical periodontal therapy. Full-mouth periodontal status assessed probing depth (PD), clinical attachment loss (CAL), gingival recession (REC), bleeding on probing (BoP), PISA and PESA. Halitosis assessment was made using a volatile sulfur compounds (VSC) detector device. Periodontal measures were regressed across VSC values using adjusted multivariate linear analysis. The subgingival microbiome was characterized by sequencing on an Illumina platform. From a sample of 20 patients referred to periodontal treatment, 70% were females (n = 14), with a mean age of 56.6 (±10.3) years; full-mouth records of PD, CAL, BOP (%) allowed to classify the stage and grade of periodontitis, with 45% (n = 9) of the sample having Periodontitis Stage IV grade C and 95% (n = 19) had generalized periodontitis. The correlation of bacterial variation with VSCs measured in the periodontal diagnosis and in the reassessment after treatment were evaluated. Fusobacterium nucleatum, Capnocytophaga gingivalis and Campylobacter showaei showed correlation with the reduction of VSC after periodontal treatment (p-value = 0.044; 0.047 and 0.004, respectively). Capnocytophaga sputigena had a significant reverse correlation between VSCs variation from diagnosis (baseline) and after treatment. Microbial diversity was high in the subgingival plaque on periodontitis and intra-oral halitosis participants of the study. Furthermore, there were correlations between subgingival plaque composition and VSC counting after periodontal treatment. The subgingival microbiome can offer important clues in the investigation of the pathogenesis and treatment of halitosis.

Role of the 1st booster dose of COVID-19 vaccine in the protection against the infection: A fundamental public health tool.

The COVID-19 pandemic is having a huge impact on human health with high morbidity and mortality rates worldwide. Healthcare Workers (HCWs) are one of the most at risk categories to contract the infection. Effective anti-COVID-19 vaccines were approved in a very short time. Making the 1st booster dose is essential to induce a good protection against the infection. We conducted a retrospective sero-epidemiological survey of already existing data concerning the antibody response of a HCWs sample vaccinated with the primary cycle and the 1st booster dose of the Pfizer-BioNTech COVID-19 mRNA vaccine and, specifically, after three weeks from the third dose of vaccination. In our analysis, after the primary cycle, a 95.15% efficacy was detected. Among the non-responders, women were significantly more frequent (69.56%). Moreover, we found a significant reverse correlation between the immune response and the age of the sample, especially in women. However, the 1st booster dose completely cancelled these differences. Our data are perfectly in line with what has been declared by the conducted studies in terms of efficacy. However, it is important to highlight that people with only the primary cycle are at high risk to contract the COVID-19 infection. Therefore, it is necessary to not consider people vaccinated with the primary cycle completely risk-free and to stress the importance to perform the 1st booster dose.

Regulatory conflict and its relationship to organizational justice among the heads of sports clubs in Nineveh province

The search aims to identify: - Regulatory conflict and its relationship to organizational justice among the heads of sports clubs in Nineveh province. The researchers used the descriptive approach to suit the nature of the current research, and the eye of the research included the heads of sports clubs in Nineveh province, and the researchers used the statistical package (spss25) and the researchers assumed that there is no statistically significant moral correlation between the organizational conflict and organizational justice among the heads of sports clubs in Nineveh province. The researchers concluded: - there is a statistically significant reverse moral correlation between the organizational conflict and organizational justice of the heads of sports clubs in Nineveh province. The researchers recommended: - Holding courses and workshops for the heads of sports clubs in Nineveh province on ways and methods of conflict resolution and how to deal with them. - Applying laws and decisions to all employees without bias, and providing employees with all the details that concern them. - The distribution of tasks, responsibilities and ways of carrying out work in clear ways so that it does not become a space for conflict for overlapping work between workers. - Conducting studies similar to the current study to be more extensive in terms of sample and society. - Work to build positive working relationships between club presidents and employees of the sports institution.

Associated between Dietary Antioxidant Index (DAI) and Odds of Breast Cancer and Correlation between DAI with Pathobiological Markers: Hospital-Based Incidence Case-Control Study

Background: The relationship between dietary antioxidants and breast cancer (BrCa) has been investigated in various studies. As a limitation, they generally investigate the relationship between one specific antioxidant and the risk/odds of BrCa, and synergistic or inhibitory effects are less considered. Dietary antioxidant index (DAI) is a reliable nutritional tool that evaluates total nutritional antioxidant capacity and is validated with serum total antioxidant capacity (TAC) and Malondialdehyde (MDA). Our study aimed to investigate the association between the DAI and the odds of BrCa and the correlation between the DAI and pathobiological markers. We hypnotized a correlation between DAI and pathobiological markers, and there is an association between DAI and the odds of BrCa. Methods: Our study included 145 incidence cases of BrCa and 148 hospital-based controls. Controls were randomly selected from patients attending the same center and were frequency-matched on age (±10 years). DAI was calculated based on a valid semi-quantitative 168-item food frequency questionnaire data. DAI standardizes intake of major dietary antioxidants, including vitamins A, E, C, selenium, zinc, and magnesium, and presents them as summarized scores. Results: Modeling with multivariable regressions adjusting for major confounders including age, education, body mass index, occupation, alcohol, smoking, pregnancy, history of cancer, menarche age, metabolic equivalent of task, hormone replacement therapy, and total energy intake, there was a significant association between odds of BrCa and DAI (odds ratio = 0.18; 95% confidence interval:0.09-0.37; p-value= <0.01). After multiple controls, there was a significant and weak reverse correlation between DAI and the number of lymph node(s) (correlation coefficient= −.140; p-value = 0.05). Conclusion: Our study supports the hypothesis that dietary antioxidants intake is associated with a reduced odds of BrCa. Evidently, DAI can reveal these relationships better than a single study of antioxidants. However, further studies are needed to confirm or refute these results.

Nigella sativa extract in the treatment of depression and serum Brain-Derived Neurotrophic Factor (BDNF) levels.

Background:Here, we aimed to investigate the therapeutic effects of Nigella sativa extract on serum brain-derived neurotrophic factor (BDNF) and depression score in patients with depression.Materials and Methods:This clinical trial was performed in 2021 in the hospitals of military forces in Tehran on 52 male patients with major depressive disorder treated with sertraline. We used the Depression, Anxiety, and Stress Scale-21 Items (DASS-21) questionnaire to assess the patients. Serum BDNF levels were measured by the enzyme-linked immunosorbent assay. Patients were then divided into two groups receiving 1000 mg N. sativa oil extract, daily, and placebo. Both groups received sertraline for at least 3 months. DASS-21 questionnaire and serum BDNF levels were measured after 10 weeks.Results:After treatments, we observed significantly decreased DASS-21 score (−11.24 ± 5.69) in the intervention group (P < 0.001) and placebo (−2.72 ± 6.19, P = 0.032), but patients in the intervention group had significantly lower scores (50.1 ± 6.8 vs. 58.2 ± 5.6, respectively, P < 0.001). Furthermore, patients in the intervention group had significantly decreased depression score (−5.5 ± 2.47, P < 0.001) and lower scores compared to the placebo (P < 0.001) (18.6 ± 2.7 vs. 23.4 ± 2.1 in intervention and placebo, respectively). We also observed significantly increased BDNF levels in the intervention group after the treatments (6.08 ± 3.76, P < 0.001) compared to the placebo group (29.4 ± 3.6 vs. 24.9 ± 2.1, P < 0.001). Serum BDNF levels had also significant reverse correlations with DASS-21 score (r = −0.35, P = 0.011) and depression score (r = −0.45, P = 0.001).Conclusion:The use of N. sativa resulted in decreased depression score and increase in serum BDNF levels that indicate the importance and efficacy of this drug.

Breastfeeding and Breast Cancer Risk: Our Experience and Mini-review of the Literature.

Background:According to data from World Health Organization, breast cancer constitutes the second most common diagnosed malignancy after lung cancer and the second leading cause of death among women in 2020, worldwide. The protective role of breastfeeding in the emergence of breast malignancy has been mentioned in several studies, indicating the important part it can have in the effort of reducing breast cancer’s incidence.Objective:To investigate a possible association between breastfeeding and breast cancer risk in Greek women.Methods:Totally, 391 women participated in our case-control retrospective study. In the case group included 238 women with breast cancer, while in control group 153 women without breast cancer who were enrolled in two breast clinics in Greece. All women were examined clinically and with breast ultrasound, while those older than 40 years old also with bilateral digital mammography.Results:The x2 (chi-square) test found a statistically significant reverse correlation between breast cancer and breastfeeding ⩾12 months (cumulative) (p = 0.001). It was observed that the percentages of patients who breastfed ⩾12 months were lower than those of healthy women.Conclusion:Breastfeeding and particularly the cumulative period of ⩾12 months is related to the maximum of the protection from breast cancer.

The Musculoskeletal Disorders, Pain Characteristics, and Activity Levels of Caregivers During the Rehabilitation Process and the Consequences on Sleep Condition, Health Status, and Quality of Life

Abstract Objective Taking care of a patient can significantly impact both physical and psychological statuses of caregivers. This study aimed to examine musculoskeletal problems, health status, and quality of life of caregivers. This study is novel in determining musculoskeletal disorders, pain characteristics, activity levels, sleep condition, general and psychological health statuses, and quality of life of caregivers. Design A cross-sectional study Patients and Methods A total of 240 participants were enrolled in this prospective and cross-sectional study conducted at a tertiary rehabilitation center (patients, n = 120; caregivers, n = 120). The demographic and clinical characteristics of the participants were recorded during the evaluation process. The Functional Ambulation Classification Scale (FAS) and Barthel Scale scores of the patients were determined. The pain level of the caregivers was evaluated according to the Visual Analog Scale (VAS). The International Physical Activity Questionnaire (IPAQ)–short form was used to evaluate caregivers’ activity levels. The quality of life of caregivers was evaluated with the World Health Organization Quality of Life Assessment Scales score (WHOQOL-BREF). The anxiety and depression status of the caregivers were interpreted using the Hospital Anxiety and Depression Scale, The health level of the caregivers was evaluated using the Health Assessment Questionnaire. Results A statistically significant positive correlation was found between the duration of caregiving (hours per week) and the pain duration of the caregiver (month) (P = 0.000, r = 0.766). the caregivers who provided longer-term care for their patients (hours per week) had higher VAS scores (P = 0.000, r = 0.944). A significant reverse correlation was found between the duration of caregiving (hours per week) and IPAQ-Walking MET (metabolic equivalent) scores (minutes/week) (P = 0.000, r = –0.811). On the contrary, a positive significant association was detected between the duration of caregiving (hours per week) and IPAQ-Vigorous MET scores (minutes/week) due to the caregiving activities of the patients such as lifting, positioning, and so forth. Also, a significant positive correlation was observed between the duration of caregiving (hours per week) and Hospital Depression Scale scores (P = 0.000, r = 0.394), Hospital Anxiety Scale scores (P = 0.000, r = 0.548), and Health Assessment Questionnaire scores (P = 0.000, r = 0.415). Conclusion Providing protective exercise programs, including walking activity, to caregivers and organizing education programs that include caregiving techniques can positively affect the quality of life of caregivers.

The effect of vertebral artery characteristics on cervical discogenic pain and disability

Introduction : Cervical discogenic pain, which is characterized by a stiffness or pain in neck movement, generally occurs as a result of disc degeneration. On the other hand; vascular pathologies of the cervical region, especially vertebrobasilar insufficiency, may give rise to similar findings in patients; it can also be detected simultaneously with cervical disc pathologies. . In this study, it was aimed to investigate whether the circulatory properties of the vertebral arteries have an effect on the neck pain and functional status of the patients.&#x0D; Material and Method: Based on the participants’ medical history, physical examination and radiological examination, sixty five patients were diagnosed with cervical disc herniation. Twenty patients who met the inclusion criteria were completed the study. Vertebral artery and carotid artery doppler ultrasonography was performed in these patients, thus any stenosis or insufficiency in vascular systems of the neck was evaluated. Additionally; vertebral blood flow rate (ml / min),vessel diameter(mm), minimum blood flow velocity (Vmin) and maximum blood flow velocity (Vmax) parameters was measured by doppler ultrasonography. The obtained findings compared with patients' level of pain measured with the "VAS (Visual Analog Scale)" and the level of daily life activities measured by the "Neck Disability Index ". &#x0D; Results: It was detected a statistically significant negative correlation between the VAS score and right vertebral artery diameter (p=0.019, r=-0.518). A significant reverse correlation between the VAS score and right vertebral arterial blood flow rate (p=0.011, r=-0.556) was also observed. No correlation was found between other vertebral artery parameters and VAS score or Neck Disability Index (p&gt;0.05).&#x0D; Conclusion: The findings of this study revealed that there is a correlation between the vertebral artery flow rate and pain level. Clinicians must take into consideration vertebral pathologies in patients with neck pain because of this vital condition may accompany with various musculoskeletal pathologies such as cervical disc herniation.

Evaluation of Coronary Artery Calcification and Gremlin-1 Serum Level Correlation in Patients with Chronic Ischemic Heart Disease

Background: Available evidences have shown that bone morphogenetic proteins (BMPs), particularly BMP 2 and BMP 4, are involved in vascular calcification. Gremlin 1 is one of the important endogenous inhibitors of BMPs. This extracellular antagonist of bone morphogenic proteins has a very complex and cysteine-rich chain and establishes non-colonial transmissions to the members of the family with varying degrees of dependence and prevents them from binding to the receptor, thereby inhibit their function. The main objective of this study was clinical evaluation of the correlation between Gremlin-1 serum concentration and Coronary Artery Calcification.&#x0D; Methods: Eighty-four patients with coronary artery disease from cardiology ward of Razavi Hospital, Mashhad, Iran, who completed the inclusion criteria, entered in the study between November 2015 and March 2016. CT-Angiography was performed to define coronary artery calcium score and Gremlin-1 serum concentrations were measured by an ELISA kit.&#x0D; Results: Eighty-one patients, with mean age of 57.19±10.18 years were included to the study. The mean serum level of Gremlin-1 was 10.92±8.46 pg/mL. There was a reverse significant correlation between Gremlin-1 serum concentration and Coronary Artery Calcification of Right coronary artery(RCA) (P&lt;0.05), in contrast to total Coronary Artery Calcification score, left artery Descending (LAD), Left Main (LM) and Circumflex (CX). However, there was no evidence that age and sex risk factor, hypertension, diabetes mellitus, hyperlipidemia, positive family history, current smoking and high BMI to be associated with serum level of Gremlin-1.&#x0D; Conclusion: Based on the results, Gremlin-1 serum concentration may be a suitable biomarker for predication coronary artery calcification severity. However, more researches on larger population are necessary for its validation.

Determination of diazinon concentration by Gas Chromatography - Mass Spectrometry in underground drinking water resources located near the rice fields, before and after the pesticide spraying

Widespread and unsupervised use of pesticides in the rice fields of northern Iran has greatly increased the concern about their presence in drinking water resources. This study aimed to determine the effect of spraying of rice fields on the concentration of diazinon in rural underground drinking water resources with depth and water table of about 120 and 30 m respectively. Sampling was performed at regular intervals, before the first and after the last spraying. Diazinon extraction was carried out by USEPA liquid–liquid extraction method and the concentration of diazinon was measured by GC / Mass Spectrometry. No diazinon was observed in any of water resources before spraying, while the average concentration of diazinon after spraying was 0.005 ± 0.007 µg/l. Also there was a significant difference in diazinon concentration between water resources after spraying rice fields. There was a reverse significant correlation between the diazinon concentration and longitudinal distance from water resources to rice farms. Moreover, there was a significant direct correlation between the diazinon concentration in post-spraying samples and water turbidity. In general, spraying rice fields can cause diazinon to enter underground water resources near farms and it can be present in water resources for at least one month after the last spraying.

The Effect of Social Isolation During the COVID-19 Pandemic on Patients with Chronic Low Back Pain Who Underwent a Spine Intervention

The COVID-19 infection poses a serious threat to global health for millions of people. In addition to therapeutic treatment methods, preventive measures are also important in controlling the pandemic. As a result, billions of people are quarantined in their homes to prevent the spread of coronavirus. However, social isolation may result in immobility, which can lead to musculoskeletal problems and an increased level of pain, depending on the weakness of the muscles. To examine the effect of social isolation during the recent COVID-19 pandemic on patients with chronic low back pain. A total of 145 patients who underwent a spine intervention within the past year were enrolled in this prospective and cross-sectional study. The study was performed in the interventional pain unit of a tertiary rehabilitation center in Turkey. Patient data were obtained by telephone interview and included information pertaining to demographics, pain history, an assessment of pain, analgesic use, activity levels, and an evaluation of stress and sleep habits. Additionally, the International Physical Activity Questionnaire (IPAQ) was used to evaluate patient activity levels. It was detected that social isolation has increased the intensity of low back pain experienced by patients during the COVID-19 pandemic. We also found that patients who benefited from spinal injections administered in the prepandemic period experience less severe low back pain (P = 0.000) and took fewer analgesics (P = 0.000) during the pandemic. The findings of our study revealed that there was a significant reverse correlation between IPAQ walking scores and the prepandemic Visual Analog Scale (VAS) scores (P = 0.015, r = -0.201) and the pandemic VAS scores (P = 0.000, r = -0.313).By contrast, the level of benefit from injections decreased (P < 0.05) and the duration of spinal intervention was shortened in patients with high IPAQ sitting scores (P < 0.05). The limitations of the study are the small number of patients and the fact that our results are based on patients' self-reported data. Social isolation has had an increasing effect on low back pain during the COVID-19 pandemic. The results of our study showed a significant relationship between activity level and pain intensity. We also found that patients who have benefited from spinal injections administered in the prepandemic period experience less severe low back pain during the pandemic.