scholarly journals Toxoplasma gondii Infection in Diabetes Mellitus Patients in China: Seroprevalence, Risk Factors, and Case-Control Studies

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Yong-Xin Li ◽  
Hai Xin ◽  
Xiang-Yan Zhang ◽  
Cui-Ying Wei ◽  
Yu-He Duan ◽  
...  

The association between Toxoplasma gondii (T. gondii) infection and diabetes mellitus remains controversial. With the improvement of living standards, the prevalence rate of diabetes is steadily increasing in China. Thus, it is necessary to explore the possible association between toxoplasmosis and diabetes mellitus in China. Hence, case-control studies were conducted to explore the T. gondii seroprevalence and identify the risk factors and possible transmission routes of T. gondii infection in different types of diabetes, including type 1 diabetes (T1DM), type 2 diabetes (T2DM), and gestational diabetes (GDM) patients in China. Four hundred serum samples for each type of diabetes mellitus, matched with 400 control subjects for each group, were collected and examined for anti-T. gondii IgG and IgM antibodies using commercially available enzyme immunoassay kits. The total T. gondii seroprevalence in T1DM, T2DM, and GDM patients was 16.50%, 23.50%, and 21.25%, respectively. Each type of diabetes mellitus patients had a significantly higher T. gondii seroprevalence than the control subjects. Multivariate regression identified three variables as risk factors for T. gondii infection in diabetes patients, including keeping cats at home and consumption of raw oysters for T1DM patients and consumption of raw/undercooked meat and raw oysters for T2DM patients, which may help to guide future research and control policies in diabetes mellitus patients.

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Shahrzad Soltani ◽  
Sanaz Tavakoli ◽  
Mohamad Sabaghan ◽  
Mehdi Sagha Kahvaz ◽  
Marzieh Pashmforosh ◽  
...  

Purpose. The probable association between Toxoplasma gondii (T. gondii) infection and diabetes mellitus (DM) is still controversial, and there are several studies with conflicting results. Thus, this study was performed to assess the possible association between chronic T. gondii infection and type 1 diabetes mellitus (T1DM) and T2DM. Methods. In this case-control study, a total of 105 diabetic subjects including 36 patients with T1DM and 69 patients with T2DM were recruited. In addition, 150 nondiabetic subjects were enrolled as controls. Each case group had its own control group. Each participant completed a structured questionnaire obtaining demographic information. Serum samples were examined for T. gondii-specific IgG antibody using enzyme-linked immunosorbent assay (ELISA) method. Results. Analysis revealed that 69.4% and 34.0% of patients with T1DM and control subjects were serologically positive for T. gondii, respectively (odds ratio (OR): 4.41; 95% confidence interval (CI): 1.75–11.06; P = 0.001 ). Moreover, 72.5% of T2DM patients and 29.0% of healthy individuals were seropositive for T. gondii (OR: 6.44; 95% CI: 3.25–12.74; P < 0.001 ). Among risk factors, only contact with cats was significantly associated with IgG seroprevalence in both T2DM patients ( P < 0.001 ) and control subjects ( P = 0.045 ). Conclusion. Although the results showed that chronic T. gondii infection is significantly associated with T1DM and T2DM, there remain many questions regarding the exact mechanisms of T. gondii in the pathogenesis of DM.


2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Ruo-Lan Jiang ◽  
Quan Zhao ◽  
Jing Jiang ◽  
Xue-Long Chen ◽  
Xiao-Xuan Zhang ◽  
...  

Background. Toxoplasmosis is caused by an intracellular parasite Toxoplasma gondii, which can infect many hosts including humans. Methods. In order to estimate whether dustmen are more susceptible to T. gondii, a case-control study was conducted containing 332 dustmen from Jilin and Heilongjiang in Northeastern China, as well as 332 general populations from the same regions as control subjects. Serum samples were tested IgG and IgM antibodies to T. gondii using the enzyme-linked immunosorbent assay (ELISA). Results. The overall anti-T. gondii IgG was 15.06% (50/332) in dustmen compared with 9.64% (32/332) in the controls (P = 0.0337). Also, 5 (1.51%) dustmen had anti-T. gondii IgM antibodies compared with 2 (0.60%) control individuals (P = 0.2543). A significant association was only found between dustmen and level of T. gondii IgG in comparison with the control subjects. Seroprevalence of T. gondii IgG antibodies in male dustmen was significant higher than male control subjects (P = 0.0399). Dustmen from Jilin had the significant higher T. gondii IgG rate (P = 0.0143), in comparison with the control subjects from Jilin. Moreover, dustmen raising cat at home had the significant higher T. gondii IgG rate (P = 0.0097), in comparison with the control subjects. Risk factor analysis suggested that raising cat at home and not having habits of washing hand before eating were mainly related to the T. gondii infection in dustmen. Conclusions. This is the first record of seroprevalence of T. gondii infection in dustmen in Jilin and Heilongjiang provinces in Northeastern China. These findings also suggest that the government departments should pay close attention to the toxoplasmosis in dustmen in Northeastern China.


2015 ◽  
Vol 60 (4) ◽  
Author(s):  
Qi-Dong Tan ◽  
Xiao-Yu Yang ◽  
Ming-Yang Yin ◽  
Ling-Ying Hu ◽  
Si-Yuan Qin ◽  
...  

AbstractPrevalence of antibodies to Toxoplasma gondii and risk factors with infection were assessed in dairy cattle from Gansu Province and Ningxia Hui Autonomous Region (NXHAR), northwest China. In total, 1657 serum samples were collected and assayed by the modified agglutination test. The overall seroprevalence was 4.83% at a 1:100 cut-off, with titers of 1:100 in 72, 1:200 in 4, 1:400 in 4. Among the risk factors examined, no statistically significant difference was observed between T. gondii seroprevalence and regions or age of dairy cattle in the logistic regression analysis (P>0.05) and left out of the final model. However, numbers of pregnancies of dairy cattle was considered as main risk factor associated with T. gondii infection. Dairy cattle in nulliparity group (8.89%) had 6 times (OR=6.31, 95% CI, 2.69-14.83, P<0.001) higher risk of being seropositive compared to dairy cattle in 3 or above 3 pregnancies group (1.52%), followed by 1 pregnancy group (4.27%) had nearly 3 times (OR=2.89, 95% CI, 1.11-7.52, P = 0.03) higher risk of being seropositive compared to dairy cattle in 3 or above 3 pregnancies group, although no statistical difference was found between 2 pregnancies group and 3 or above 3 pregnancies group (P = 0.70). The results of this survey indicated the presence of T. gondii infection in dairy cattle in Gansu Province and NXHAR, which enriches the epidemiological data of T. gondii infection in dairy cattle in China, and is helpful to strengthen prevention and control of T. gondii infection in dairy cattle in these two regions.


2017 ◽  
Vol 145 (11) ◽  
pp. 2296-2302 ◽  
Author(s):  
A. L. TIAN ◽  
G. X. LI ◽  
H. M. ELSHEIKHA ◽  
D. S. GARDNER ◽  
X. Y. ZHANG ◽  
...  

SUMMARYThe role of the protozoan parasite Toxoplasma gondii in the pathogenesis of liver disease has recently gained much interest. The aim of this study was to determine the prevalence and risk factors associated with T. gondii infection in patients with liver disease from three cities in Shandong and Henan provinces, China. A case–control study was conducted from December 2014 to November 2015 and included 1142 patients with liver disease and 1142 healthy controls. Serum samples were collected from all individuals and were examined with enzyme-linked immunosorbent assay for the presence of anti-T. gondii IgG and IgM antibodies. Information on the demographics, clinical, and lifestyle characteristics of the participants was collected from the medical records and by the use of a questionnaire. The prevalence of anti-T. gondii IgG was 19·7% in patients with liver disease compared with 12·17% in the controls. Only 13 patients had anti-T. gondii IgM antibodies compared with 12 control individuals (1·14% vs. 1·05%, respectively). The highest seroprevalence was detected in patients with liver cancer (22·13%), followed by hepatitis patients (20·86%), liver cirrhosis patients (20·42%), and steatosis patients (20%). Multivariate logistic regression analysis indicated that consumption of raw meat (odds ratio (OR) = 1·32; 95% confidence interval (CI) 1·01–1·71; P = 0·03) and source of drinking water from wells (OR = 1·56; 95% CI 1·08–2·27; P = 0·01) were independent risk factors for T. gondii infection in liver disease patients. These findings indicate that T. gondii infection is more likely to be present in patients with liver disease. Therefore, efforts should be directed toward health education of populations at high risk of T. gondii infection and measures should be taken to protect vulnerable patients with liver disease.


Author(s):  
A.C.R. Cavalcante ◽  
M. Carneiro ◽  
A.M.G. Gouveia ◽  
R.R. Pinheiro ◽  
R.W.A. Vitor

In order to identify possible risk factors for T. gondii infection in goat herds in Ceará, Brazil, 2362 serum samples were tested by ELISA. The serological prevalence was 25.1%. The risk factors identified for Toxoplasma gondii infection in goat herds were age, number of cats, use of wooden feeding troughs and absence of feeding troughs. Goats older than 37 months had 2.01 (CI 95%; 1.55 - 2.61) higher risk of infection than younger animals. Greater risk of infection was observed in farms with more than 10 cats (OR = 1.73; CI 95%; 1.01 - 3.33). The use of wooden feeding troughs represented a high probability of infection (OR = 7.81; CI 95%; 1.66 - 36.67). The lack of feeding troughs also represented a high probability of infection (OR = 5.50; CI 95%; 1.24 - 24.39).


2006 ◽  
Vol 27 (9) ◽  
pp. 901-906 ◽  
Author(s):  
Carlos Magno C. B. Fortaleza ◽  
Maristela P. Freire ◽  
Djalma de C. Moreira Filho ◽  
Marcelo de Carvalho Ramos

Background.The prevalence of resistance to imipenem and ceftazidime among Pseudomonas aeruginosa isolates is increasing worldwide.Objective.Risk factors for nosocomial recovery (defined as the finding of culture-positive isolates after hospital admission) of imipenem-resistant P. aeruginosa (IRPA) and ceftazidime-resistant P. aeruginosa (CRPA) were determined.Design.Two separate case-control studies were conducted. Control subjects were matched to case patients (ratio, 2:1) on the basis of admission to the same ward at the same time as the case patient. Variables investigated included demographic characteristics, comorbid conditions, and the classes of antimicrobials used.Setting.The study was conducted in a 400-bed general teaching hospital in Campinas, Brazil that has 14,500 admissions per year. Case patients and control subjects were selected from persons who were admitted to the hospital during 1992–2002.Results.IRPA and CRPA isolates were obtained from 108 and 55 patients, respectively. Statistically significant risk factors for acquisition of IRPA were previous admission to another hospital (odds ratio [OR],4.21 [95% confidence interval {CI}, 1.40-12.66];P = .01), hemodialysis (OR, 7.79 [95% CI, 1.59-38.16]; P = .01), and therapy with imipenem (OR, 18.51 [95% CI, 6.30-54.43]; P<.001), amikacin (OR, 3.22 [95% CI, 1.40-7.41]; P = .005), and/or vancomycin (OR, 2.48 [95% CI, 1.08-5.64]; P = .03). Risk factors for recovery of CRPA were previous admission to another hospital (OR, 18.69 [95% CI, 2.00-174.28]; P = .01) and amikacin use (OR, 3.69 [95% CI, 1.32-10.35]; P = .01).Conclusion.Our study suggests a definite role for several classes of antimicrobials as risk factors for recovery of IRPA but not for recovery of CRPA. Limiting the use of only imipenem and ceftazidime may not be a wise strategy to contain the spread of resistant P. aeruginosa strains.


2020 ◽  
Author(s):  
Kamyar Mansori ◽  
Yousef Moradi ◽  
Sara Naderpour ◽  
Roya Rashti ◽  
Ali Baradaran Moghaddam ◽  
...  

Abstract Background There are several studies with varied and mixed results about the possible relationship between H. pylori and diabetes. Therefore, this current meta-analysis performed to determine the association between H. pylori infection and the risk of diabetes mellitus. Methods A systematic literature searches of international databases, including Medline (PubMed), Web of Sciences, Scopus, EMBASE, and CINHAL (January 1990–March 2019) was conducted to identify studies investigating the relationship between H. pylori infection and diabetes mellitus. Only case–control studies were analyzed using odds ratio (OR) with 95 % confidence intervals (CIs). Stratified and subgroup analyses were performed to explore heterogeneity between studies and assess effects of study quality. Logarithm and standard error logarithm odds ratio (OR) were also used for meta-analysis. Results A total of 41 studies involving 9559 individuals (case; 4327 and control; 5232) were analyzed. The pooled estimate of the association between H. pylori infection with diabetes was OR=1.27 (95% CI 1.11 to 1.45, P = 0.0001, I2 = 86.6%). The effect of H. pylori infection on diabetes mellitus (both types), type 1 and type 2 diabetes was 1.17 (95% CI 0.94 to 1.45), 1.19 (95% CI 0.98 to 1.45), and 1.43 (95% CI 1.11 to 1.85) respectively. Subgroup analysis by the geographical regions showed in Asian population risk of the effect of H. pylori infection on diabetes was slightly higher than other population.Conclusion In overall a positive association between H. pyloriinfection and diabetes mellitus was found.


Author(s):  
Sumit Kumar Singh ◽  
Jayanti Semwal ◽  
Deep Shikha ◽  
Yashpal Singh ◽  
Dheeraj Bansal ◽  
...  

Background: In developed countries, stroke is the third most common cause of mortality, following cancer and coronary heart disease. The increase risk is often seen in individuals with diabetes and is associated with poorer clinical outcomes (including higher mortality). That’s why assessment of risk factors for stroke are important.Methods: This age and sex matched hospital based case control study assessed the risk factors of ischemic stroke in tertiary care hospital for a period of one year. Sample size was calculated for matched case control (1:1 ratio) by n-master software and came out to be 189 pairs. All patients under WHO case definition were enrolled as cases for study purpose, controls were selected from the same hospital with disease other than stroke. Analysis was conducted through calculation of odd ratio (OR) and confidence internal (CI) by using SPSS 22.0 program. Odds ratio (OR) of risk factor was calculated using bivariate analysis.Results: Results revealed that male: female ratio among the case and control was 2.1:1, mean age of case and control were 58.86±13.03 and 58.21±12.67. Out of 189 Case, 59 (31.2%) were suffering from diabetes, while only 39 (20.6%) controls were having diabetes mellitus. P value was 0.02, which is significant.Conclusions: In the present hospital based case control study, it was found that diabetes mellitus was a significant risk factor among the ischemic stroke patients.


2018 ◽  
Vol 39 (6) ◽  
pp. 2457 ◽  
Author(s):  
Karina Rodrigues dos Santos ◽  
Jezlon Da Fonseca Lemos ◽  
Carla Duque Lopes ◽  
Richard Atila Sousa ◽  
Marcelo Richelly Alves de Oliveira ◽  
...  

This study aimed to evaluate the seroprevalence and risk factors associated with Toxoplasma gondii infection in goats from micro-regions of the state of Piauí (Brazil). From six randomly selected properties, 145 goats were examined. Serum samples of the animals were analyzed by ELISA for the presence or absence of antibodies against T. gondii. Of these, 22% were seroreactive for T. gondii. Individual records were also taken for each property. These analyses showed that factors such as sex, age, water source, and presence of cats were associated with animal seropositivity. In addition, there was also a positive correlation (p > 0.04) between animal sex and T. gondii contamination. The presence of cats in the facilities and animal pasture fields appeared to be a risk factor for the contamination of goats in the assessed properties (p > 0.03). The parasite Toxoplasma gondii is present in the goat herds of southern Piauí state, and females are more likely to be contaminated.


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