scholarly journals Molecular prevalence, characterization and associated risk factors of Anaplasma spp. and Theileria spp. in small ruminants in Northern Pakistan

Parasite ◽  
2021 ◽  
Vol 28 ◽  
pp. 3
Author(s):  
Sadaf Niaz ◽  
Zia Ur Rahman ◽  
Ijaz Ali ◽  
Raquel Cossío-Bayúgar ◽  
Itzel Amaro-Estrada ◽  
...  
Keyword(s):  
Risk Factors ◽  
Multivariable Analysis ◽  
Small Ruminants ◽  
Rrna Genes ◽  
Infection Prevalence ◽  
Northern Pakistan ◽  
Blood Samples ◽  
Grazing System ◽  
Host Sex ◽  
Associated Risk Factors

This study was conducted in four districts (Malakand, Swat, Bajaur and Shangla) of Northern Pakistan to investigate the prevalence, associated risk factors and phylogenetic analyses of Theileria and Anaplasma species in small ruminants. A total of 800 blood samples, 200 from each district, were collected from apparently healthy animals. PCR assays were performed using generic primers for Anaplasma spp. and Theileria spp. as well as species specific primers for A. ovis and T. ovis. Overall infection prevalence was 361/800 (45.1%). Theileria spp. infection prevalence (187/800, 23.3%) was higher than Anaplasma spp. (174/800, 21.7%). Amplified partial 18S rRNA genes were sequenced and enrolled animals were found to be infected by T. ovis (115/800, 14.3%), and at least two more Theileria species (72/800, 9%) were present (T. lestoquardi and T. annulata). All blood samples that were found to be positive for Anaplasma spp. were also positive for A. ovis. Infection prevalence was higher in sheep (227/361, 28.3%) compared to goats (134/361, 16.6%) (p < 0.005). Univariable analysis of risk factors showed that host, age, grazing system and acaricide treatment were significant determinants (p < 0.05) for both Theileria and Anaplasma infections. Multivariable analysis revealed that host, sex, age, tick infestation and grazing system were significant risk factors (p < 0.005) for both pathogens. Phylogenetic analysis revealed variants among the A. ovis and T. annulata samples analysed, indicating that different genotypes are circulating in the field while T. ovis presented the same genotype for the samples analysed.

Evaluating serum elastin levels in striae gravidarum

2019 ◽  
Vol 45 (1) ◽  
pp. 76-82
Author(s):  
Beril Gürlek ◽  
Ülkü Mete Ural ◽  
Sibel Tuğcugil ◽  
Medeni Arpa ◽  
Özgür Önal
Keyword(s):  
Risk Factors ◽  
Pregnant Women ◽  
Prospective Observational Study ◽  
Personal Characteristics ◽  
Active Phase ◽  
Controlled Trials ◽  
Blood Samples ◽  
Associated Risk Factors ◽  
Striae Gravidarum ◽  
In Pregnancy

Abstract Objective Striae gravidarum (SG) is the most common dermatological defect in pregnancy leading to cosmetic anxiety with unknown etiopathogenesis. The aim of the study was to analyze the relation between serum elastin levels and striae and identify possible independent associated risk factors. Materials and methods This was a prospective observational study. In total, 138 primipara pregnant women were examined before delivery. Participants were separated into two groups according to the presence of SG. Striae assessment was performed according to Davey score. Before the active phase of labor patients were physically examined and blood samples were collected. Personal characteristics, features of birth, skin findings and serum elastin levels were compared between groups. Results Term pregnant women with SG had significantly higher serum elastin levels than those without SG (99.46 ± 32.92 vs. 88.36 ± 19.12, respectively; p = 0.018). Conclusions Serum elastin levels were increased in women with SG. However, the newly synthesized elastin may not be functional as it is thin and disorganized. Therefore, increased elastin production may not prevent the formation of striae. This finding may provide an impetus to explore the pathomechanisms of striae. Further controlled trials are warranted to determine the clinical significance of serum elastin levels in the formation of SG.

scholarly journals Seroprevalence and risk factors associated with Neospora caninum in crossbred dairy cows in Uberlândia

2018 ◽  
Vol 39 (4) ◽  
pp. 1585 ◽  
Author(s):  
Nayara Resende Nasciutti ◽  
Patrícia Magalhães de Oliveira ◽  
Vinícius De Morais Barbosa ◽  
Selwyn Arlington Headley ◽  
Felipe Gonçalves Garcia ◽  
...  
Keyword(s):  
Risk Factors ◽  
Dairy Cows ◽  
Neospora Caninum ◽  
Reproductive Disorders ◽  
Blood Samples ◽  
Factors Associated ◽  
History Of ◽  
Antibody Titers ◽  
Associated Risk Factors ◽  
The City

Neospora caninum causes reproductive disorders in dairy cattle such as repeat breeding, abortion, and anestrus, which are risk factors associated with the seroprevalence of N. caninum in Brazil and worldwide. This study aimed to verify the risk factors related to the seroprevalence of Neospora caninum in crossbred dairy cows in the city of Uberlândia, Minas Gerais. During, January to July 2013, 740 blood samples were collected from 57 herds with a history of reproductive disorders and determinations of antibody titers against N. caninum were obtained by ELISA assay. The seroprevalence of N. caninum was 18.4% (136/740). Risk factors for N. caninum were cows greater than 2 years of age (P = 0.034), mechanical milking (P = 0.012), and frequent purchase of animals (P = 0.004), in addition to individual history of abortion (P = 0.007) and repeat breeding (P = 0.030). The highest probability of occurrence of associated risk factors was associated with individual history of abortion and repeated breeding and the frequent purchase of animals, with odds of 12.8, 5.9, and 3.8 times, respectively. In conclusion, the risk factors associated with N. caninum: members of the female sex and cows with more than 2 years-of-age, mechanical milking, and the frequent purchase of animals, in addition to individual history of abortion and repeated breeding.

scholarly journals Epidemiology and Associated Risk Factors for Brucellosis in Small Ruminants Kept at Institutional Livestock Farms in Punjab, Pakistan

2020 ◽  
Vol 7 ◽  
Author(s):  
Qudrat Ullah ◽  
Tariq Jamil ◽  
Falk Melzer ◽  
Muhammad Saqib ◽  
Muhammad Hammad Hussain ◽  
...  
Keyword(s):  
Risk Factors ◽  
Small Ruminants ◽  
Livestock Farms ◽  
Associated Risk Factors

scholarly journals Fifteen-year incidence rate and risk factors of pterygium in the Southern Indian state of Andhra Pradesh

2020 ◽  
pp. bjophthalmol-2020-316359
Author(s):  
Rohit C Khanna ◽  
Srinivas Marmamula ◽  
Maria Vittoria Cicinelli ◽  
Asha Latha Mettla ◽  
Pyda Giridhar ◽  
...  
Keyword(s):  
Risk Factors ◽  
Incidence Rate ◽  
Andhra Pradesh ◽  
Formal Education ◽  
Multivariable Analysis ◽  
Increased Risk ◽  
Indian State ◽  
Adjusted Incidence Rate ◽  
Associated Risk Factors ◽  
Disease Study

PurposeTo report 15-year incidence rate and associated risk factors of pterygium among people aged 30 years and above at baseline in the rural clusters of longitudinal Andhra Pradesh Eye Disease Study (APEDS III).MethodsThe baseline APEDS I included 7771 participants of which 6447 (83%) were traced and 5395 (83.7%) were re-examined in APEDS III. To estimate the incidence of pterygium, we selected participants who were 30 years and above at baseline (4188), of which 2976 were traced and 2627 (88.3%) were examined, and based on inclusion criteria, 2290 participants were included in the study. The incidence rate of pterygium was defined as the proportion of people free of pterygium at baseline who had developed the condition at 15-year follow-up (range 13–17 years). Univariate and multivariable analyses for risk factors were undertaken.ResultsThe sex-adjusted incidence rate of pterygium was 25.2 per 100 person-years (95% CI 24.8 to 25.7) which was significantly higher for men than women (26.3 per 100 person-years (95% CI 25.6 to 27.0) and 24.7 (95% CI 24.1 to 25.3) respectively). At the multivariable analysis, male gender (RR: 1.35, 95% CI 1.0 to 1.83), no formal education (RR: 2.46, 95% CI 1.22 to 4.93), outdoor occupation (RR: 1.47, 95% CI 1.14 to 1.9) and lower body mass index (BMI) (<18.5) (RR: 1.25, 95% CI 1.02 to 1.55) were associated with increased risk of pterygium.ConclusionsThe overall incidence rate of pterygium was high in this rural population, especially in men and those engaged in outdoor activities, lack of formal education and with lower BMI. It is likely that greater exposure to ultraviolet light is a major contributing factor, thus warranting preventive strategies.

Abortion and various associated risk factors in small ruminants in Algeria

2016 ◽  
Vol 123 ◽  
pp. 97-101 ◽  
Author(s):  
Moustafa Kardjadj ◽  
Brahim Kouidri ◽  
Djamil Metref ◽  
Pam Dachung Luka ◽  
Meriem Hind Ben-Mahdi
Keyword(s):  
Risk Factors ◽  
Small Ruminants ◽  
Associated Risk Factors

scholarly journals Molecular and serological detection of Ehrlichia canis in naturally exposed dogs in Iran: an analysis on associated risk factors

2014 ◽  
Vol 23 (1) ◽  
pp. 16-22 ◽  
Author(s):  
Nadi Maazi ◽  
Abdolali Malmasi ◽  
Parviz Shayan ◽  
Seyed Mahdi Nassiri ◽  
Taghi Zahraei Salehi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Rural Areas ◽  
Ehrlichia Canis ◽  
Rrna Gene ◽  
Igg Antibodies ◽  
Serological Detection ◽  
Blood Samples ◽  
Associated Risk Factors ◽  
First Time ◽  
The 16S Rrna Gene

The general aim of this study, which was conducted for the first time in Iran, was to evaluate the seroprevalence and geographical distribution of Ehrlichia canis in a dog population in Iran, followed by molecular confirmation using PCR and sequencing. Blood samples were collected from 240 dogs in different areas of Alborz and Tehran Provinces and initially analyzed using the immunofluorescent antibody (IFA) test to detect anti-Ehrlichia canis IgG antibodies. Subsequently, nested PCR was performed based on a fragment of the 16S rRNA gene of E. canis on serologically positive samples. The results showed that 40/240 dogs (16.6%) presented anti-Ehrlichia canis IgG antibodies and that nine of the blood samples from the 40 seropositive dogs (22.5%) contained E. canis DNA, which was confirmed by sequencing. The seroprevalence of E. canis tended to be higher in purebred, one to three-year-old male dogs living in the Plain zone, in rural areas; however, this difference was not statistically significant.

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