scholarly journals Efficacy of aggregation nano gel pheromone traps on the catchability of Rhynchophorus ferrugineus (Olivier) in Egypt

Author(s):  
A. S. Abd El-Wahab ◽  
A. Y. Abd El-Fattah ◽  
W. K. M. El-Shafei ◽  
A. A. El Helaly

Abstract Field experiments were carried out in the reclaimed land east of Cairo-Alexandria Desert Road, Village of Wardan, Giza Governorate, Egypt, to evaluate the impact of using nano-gels pheromone for the first time on the attraction of the RPW adults by pheromone traps compared to the control which is normal pheromone during two successive seasons in 2018 and 2019. Also, this study aimed to compare the efficacy of two types of trap, traditional trap (type 1) and dry funnel trap (type 2) in capturing of RPW adults. Results revealed that the nano gel pheromone traps attracted significantly more adults with an average of (4.26 and 3.56) adults/trap and total of (55.33 and 46.33) adults/trap compared to control with an average (2.69 and 2.46) and total of (35.00 and 32.00) adults/trap for the two seasons 2018 and 2019 respectively. Results indicated that the use of nano gel pheromone for the first time in field improved the trap catchability to RPW adults by 22.51 and 18.30% of total number of RPW adults captured throw out the two successive seasons respectively. In addition, there was no significant difference between the total numbers of RPW adults collected by the two tested type of traps over the two successive seasons. Furthermore, the sex ratio between males and females of total collected RPW adults found to be1: 1.43 and 1: 1.94 at 2018 and 2019 respectively.

2002 ◽  
Vol 11 (4) ◽  
pp. 265-267 ◽  
Author(s):  
Rosaria Alba Merendino ◽  
Antonio Enrico Di Rosa ◽  
Giuseppe Di Pasquale ◽  
Paola Lucia Minciullo ◽  
Carmela Mangraviti ◽  
...  

Interleukin-18 (IL-18), a pro-inflammatory cytokine that plays an important role in the T-cell-helper type 1 response, is a new member of the family of cytokines produced in the brain. CD30 is a marker of T-cell-helper type 2 lymphocytes. We evaluated IL-18 and CD30 serum levels in 10 patients affected by moderate-severe depression (MSD). We demonstrated for the first time that serum IL-18 levels of MSD patients were significantly higher than those of healthy donors. On the contrary, no significant difference was found between serum CD30 levels of MSD patients compared with those of healthy donors. These data strengthen the hypothesis that MSD disease is associated with an inflammatory response, mainly T-cell-helper type 1, and suggest an important role for IL-18 in the pathophysiology of MSD.


1970 ◽  
Vol 7 (1) ◽  
pp. 19-23
Author(s):  
Hamna Javed ◽  
Tehreem Arif ◽  
Saba Arshad ◽  
Saadia Khan Baloch ◽  
Bushra Anwar ◽  
...  

Background: Determination of an individual's HCV genotypes prior to antiviral therapy has become increasingly important for the deciding clinical management and predicting prognosis of HCV infection. Relative genotype proportions are needed to inform to healthcare models, which should be geographically tailored. To our knowledge, there are no studies reporting genotype pattern in Rawalpindi/Islamabad region. We aimed to determine the frequency of different genotypes in HCV positive cases in the population of Rawalpindi/ Islamabad over the period of five years. Methods: Data of total of three thousand eight hundred and eighteen (n=3818) HCV positive adult of both genders were screened for genotype testing over the period of six years were analyzed. Results: Most frequent genotype identified in our study was genotype 3, accounting for 95.8% (n=3657) of HCV positive cases. The second most common genotype was Type 1 accounting for 2.9% (n=109) of HCV positive cases. Other genotypes were Type 2 (0.3%, n=12) and Type 4 (0.1%, n=5). Mixed genotype (Type 1 and 3) were detected in almost 1 % (n=35) of cases. We did not find genotype 5 and 6 in our study sample. No significant difference was observed among males and females in genotype distribution (P>0.05). Conclusion: The most common genotype among HCV patients were found to be genotype 3 followed by genotype 1 as the second most common in Rawalpindi/Islamabad region during the study period.


Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 1510-1510
Author(s):  
Pamela A Christopherson ◽  
Veronica H Flood ◽  
Kenneth D. Friedman ◽  
Joan Cox Gill ◽  
Sandra L Haberichter ◽  
...  

Abstract The ISTH Bleeding Assessment Tool (ISTH-BAT) was introduced in 2010 to improve on the earlier BATs and in particular to have greater accuracy in the pediatric and female population by including additional questions for neonatal bleeding and menorrhagia. The recently published cut off for positive or abnormal bleeding score (BS) is ≥ 4 in adult males, ≥ 6 in adult females and ≥ 3 in children. Here we examine the use of the ISTH-BAT in type 1 VWD and its ability to better characterize bleeding in females and children as well as the impact of menorrhagia on bleeding scores in females during aging. We analyzed 323 Index Cases (IC) and 482 Affected Family Members (AFM) enrolled in the Zimmerman Program for the Molecular and Clinical Biology of VWD (ZPMCB-VWD) with a phenotypic diagnosis of type 1 (including type 1, type 1C, type 1-severe, and low VWF). Bleeding symptoms were quantified using three different scoring systems (MCMDM-1, PBQ and ISTH-BAT), however the BS results in this analysis focus on the ISTH-BAT. Subjects were categorized by the following age groups: infant (0-2), child (3-12), adolescent (13-17), young adult (18-35), middle age (36-55), older adult (>55). Mean BS were slightly higher in both infant and child-aged males (4.5 and 4.6) compared to females (1.8 and 4.4), but the difference is not significant (p= 0.2828 and 0.5455). Higher bleeding scores in infant males were due in part to neonatal bleeding score from circumcision (13.6% of neonatal cases). The most reported bleeding symptoms in infant and child-aged males were cutaneous bleeding (61.0%), epistaxis (52.5%) and oral bleeding (25.4%). Females of this age group also presented with similar symptoms of cutaneous bleeding (64.4%), epistaxis (54.2%) and oral bleeding (30.5%). Surprisingly, there was no significant difference in total BS between adolescent males and females (mean 5.0 and 5.65, p= 0.4607). The frequency of reported bleeding symptoms in adolescent males was due to epistaxis (69.6%), cutaneous bleeding (43.5%), and minor wound bleeding (39.1%), while adolescent females reported menorrhagia (80.3%), cutaneous bleeding (65.6%), minor wound bleeding (64.4%) and epistaxis (32.8%). Bleeding symptoms reported by adults (≥18) varied by gender with males most often reporting cutaneous bleeding (50.0%), epistaxis (42.9%), oral bleeding (42.9%) and surgery (39.3%), whereas females suffered from menorrhagia (85.9%), cutaneous bleeding (80.4%), epistaxis (42.4%), minor wound bleeding (38.0%), and bleeding following tooth extractions (34.8%). Female IC (n=212) and AFM (n=280) both showed a gradual increase of BS over time (2.8 and 1.2 points per decade) whereas the BS is relatively flat over time for male IC and AFM. Analysis of female unaffected family members (n=759) showed a similar increase of BS with age (1 point per decade). To show the contribution of female specific bleeding to the overall score, we calculated a modified BS removing the menorrhagia and postpartum subscores. Interestingly, the modified BS also increased over time suggesting that other bleeding symptoms contribute to female bleeding as they age. In summary, we have shown the utility of the ISTH-BAT to characterize the bleeding in our type 1 VWD, particularly in infants and females. Infant and child-aged subjects with type 1 VWD do not show any significant difference in BS between males and females and they report similar bleeding symptoms of cutaneous bleeding, epistaxis and oral bleeding. While adolescent males and females have similar total BS, their type of bleeding symptoms vary. The BS in adult females continues to increase with age, however menorrhagia and postpartum bleeding are not the only the contributors, suggesting that there are other bleeding symptoms that account for the gradual increase of BS in females over time. Disclosures Friedman: Alexion: Speakers Bureau; Octapharma: Consultancy; Biogen Idec: Consultancy; CSL Behring: Consultancy.


Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 3179-3179
Author(s):  
Paola Guglielmelli ◽  
Giada Rotunno ◽  
Giada Brogi ◽  
Annalisa Pacilli ◽  
Costanza Bogani ◽  
...  

Abstract Background: Mutations in the gene calreticulin (CALR) were recently discovered in 60-80% of patients (pts) with primary myelofibrosis (PMF) and essential thrombocythemia (ET) who were un-mutated for JAK2V617F and MPLW515. CALR mutated PMF pts had better overall survival (OS) compared with JAK2V617F or MPLW515 mutated while in ET CALR mutations were associated with lower incidence of thrombosis although the effect on survival was not significant. Conversely, there is no information concerning the impact of CALRmutation on disease phenotype and prognosis in post-essential thrombocythemia myelofibrosis (PET-MF). Aims: The aim of the study was to assess whether CALR mutational status and/or allele burden had clinical and/or prognostic relevance in PET-MF compared with JAK2, MPLmutated or triple-negative (TN) pts. Methods: ET and PET-MF were diagnosed by 2008 WHO and IWG-MRT criteria respectively; all pts provided an informed consent. Genotyping for CALR, JAK2V617F and MPLW515 was performed in granulocytes using allele specific RTQ-PCR (JAK2, MPL), capillary electrophoresis and direct sequencing (CALR, MPL). The prognostic value of the molecular variables with regard to OS was estimated by the Kaplan-Meier method and Cox regression. Results: A series of 147 PET-MF pts from 4 Italian centres was collected. Pts median age was 63y. Median follow up from PET diagnosis was 3.2y (0.07-18.8y) and the median time from ET to PET diagnosis was 11.6y (0.9-30.6y). Death occurred in 38 pts (26%) and 14 pts (9.5%) developed acute leukemia (AML). The median OS in the entire series calculated from PET-MF diagnosis was 10.9y (7.1-14.7y). Frequency of mutations was: CALR 16%, JAK2V617F 77%; MPLW515 4.3%; TN 2.8%. The frequency of CALR mutations in PET-MF patients was superimposable to that observed in a control group of 576 ET patients from our Institution (15.5%) and slightly lower compared with other series (20-25%). Type of CALRmutations was: 59.6% type 1, 23.1%, type 2, 17.3% others, significantly different (P=0.023) from ET: 46% type 1, 38% type 2, 16% others. Median CALR allele burden in PET-MF was 56% (20%-100%) with no significant differences in the CALR mutation subtypes (57.5% in type 1, 47.5% in type 2 and 45.0% in others); however, the median mutant allele burden of CALR-mutated PET-MF patients was significantly higher than in ET patients (33%, range 2%-52%; n=100) (P<0.03) suggesting a role for mutated allele accumulation in evolution to PET-MF. Similarly, the median V617F allele burden in JAK2 mutated patients was 50.5% (range 5-100%) significantly greater than the value (24%; range, 1-87%) (P=0.02) in ET pts, confirming previous data that evolution to PET-MF is associated with accumulation of mutated JAK2allele. We then compared hematological and clinical characteristics of the patients who were categorized according to their JAK2V617F, MPLW515 and CALR mutation status. There was no statistically significant difference among the unique patient mutational groups regarding age, hemoglobin, leukocyte and platelet count, peripheral blasts, LDH, circulating CD34+ cells, abnormal karyotype, grade of bone marrow fibrosis and cellularity, and pruritus. However, JAK2+ pts showed an increased rate of large (>10 cm) splenomegaly (28.6% vs 14% in CALR+, 7.1 in MPL+ and 25% in TN pts; P=0.02) and constitutional symptoms (50% vs 18.8% in CALR+, 45% in MPL+ and 12.5% in TN pts; P=0.002). The interval from ET to PET-MF was significantly longer in CALR+ pts (14.5y) compared with JAK2+ (10.2y) and TN patients (11.0y; P=0.04 for both) and similar to MPL+ (14y). There was a reduced rate of death (13.5%) in CALR+ compared with JAK2+ (30.6%), MPL+ (21.4%) and TN (66.7%) pts (P=0.005), although Kaplan Meier estimates did not reach a statistically significant difference. Finally, there were less AML transformation in CALR+ pts (1.9%) compared with JAK2+ (13.9%), MPL+(7.1%) and TN (22.2%) (P=0.04). Conclusion: These results show that CALR mutation is associated with delayed transformation of ET to PET-MF, a milder disease in terms of splenomegaly and symptom burden and a reduced risk of death compared with JAK2V617F PET-MF pts and more in general with MPL mutated and TN pts.In addition, similar to findings in primary MF and unlike in ET, PET-MF is characterized by prevalence of type 1 CALR mutations. Disclosures No relevant conflicts of interest to declare.


2020 ◽  
Author(s):  
Trish R. Kahamba ◽  
Lara Noble ◽  
Wendy Stevens ◽  
Lesley Scott

AbstractAdequate swab specimen collection, release and detection of nucleic acids by molecular diagnostic assays is largely attributed to the physical and chemical characteristics of different swab types. We investigated properties of three types of commercial nasopharyngeal swabs (nylon flocked: Type 1-Media Merge; Type 2-Kang Jian Medical Apparatus, China and Type 3-Wuxi NEST Biotechnology Co. Ltd, China) used in clinical diagnostics with the aim to establish if different swab designs and configurations had any effect on swab performance. Properties investigated included viral absorption, release, capture, extraction and recovery efficiency from each swab for the detection of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2). All swab types (n=18) were inoculated with different amounts of SARS-CoV-2 live viral cultures (1:10, 1:100 and 1:1000 copies/ml) and eluted in sterile phosphate buffer saline. RNA was extracted from all swab eluates using a fully automated system (BD MAX™ System) and cycle threshold (Ct) values were compared. RNA stability was also investigated after dry storage of swabs at room temperature for 72 hours. Statistically significant differences (p<0.05) were observed in the absorption and release capabilities between Type 1 and 3 as well as between Type 2 and 3 swabs, however, no significant difference was observed between Type 1 and 2. Ct values and extraction efficiency amounts of SARS-CoV-2 varied amongst the swab types. We conclude that in order to facilitate accurate SARS-CoV-2 diagnosis, assessment of NP swab characteristics is of importance before implementation for specimen collection in the clinical setting.


Author(s):  
Larisa Dmitrievna Popovich ◽  
Svetlana Valentinovna Svetlichnaya ◽  
Aleksandr Alekseevich Moiseev

Diabetes – a disease in which the effect of the treatment substantially depends on the patient. Known a study showed that the use of glucometers with the technology of three-color display of test results facilitates self-monitoring of blood sugar and leads to a decrease in glycated hemoglobin (HbAlc). Purpose of the study: to modeling the impact of using of a glucometer with a color-coded display on the clinical outcomes of diabetes mellitus and calculating, the potential economic benefits of reducing the hospitalization rate of patients with diabetes. Material and methods. Based on data from two studies (O. Schnell et al. and M. Baxter et al.) simulation of the reduction in the number of complications with the use of a glucometer with a color indication. In a study by O. Schnell et al. a decrease of HbA1c by 0.69 percent is shown when using the considered type of glucometers, which was the basis of the model. Results. In the model, the use of a glucometer with a color-coded display for type 1 diabetes led to a decrease in the total number of complications by 9.2 thousand over 5 years per a cohort of 40 thousand patients with different initial levels of HbA1c. In a cohort of 40 thousand patients with type 2 diabetes, the simulated number of prevented complications was 1.7 thousand over 5 years. When extrapolating these data to all patients with diabetes included in the federal register of diabetes mellitus (FRD), the number of prevented complications was 55.4 thousand cases for type 1 diabetes and 67.1 thousand cases for type 2 diabetes. The possible economic effect from the use of the device by all patients with a diagnosis of diabetes, which are included in the FRD, estimated at 1.5 billion rubles for a cohort of patients with type 1 diabetes and 5.3 billion rubles for patients with type 2 diabetes. Conclusion. Improving the effectiveness of self-monitoring, which is the result of the use of glucometers with color indicators, can potentially significantly reduce the incidence of complications in diabetes and thereby provide significant economic benefits to society.


2019 ◽  
Vol 15 (3) ◽  
pp. 172-173 ◽  
Author(s):  
Valdemar Grill ◽  
Bjørn O. Åsvold

Latent Autoimmune Diabetes in the Adult, LADA has been investigated less than “classical” type 1 and type 2 diabetes and the criteria for and the relevance of a LADA diagnosis has been challenged. Despite the absence of a genetic background that is exclusive to LADA, this form of diabetes displays phenotypic characteristics that distinguish it from other forms of diabetes. LADA is heterogeneous in terms of the impact of autoimmunity and lifestyle factors, something that poses problems as to therapy and follow-up perhaps particularly in those with marginal positivity. Yet, there appears to be clear clinical utility in classifying individuals as LADA.


2019 ◽  
Vol 81 (1-2) ◽  
pp. 81-86
Author(s):  
Pierre Koskas ◽  
Mouna Romdhani ◽  
Olivier Drunat

As commonly happens in epidemiological research, none of the reported studies were totally free of methodological problems. Studies have considered the influence of social relationships on dementia, but the mechanisms underlying these associations are not perfectly understood. We look at the possible impact of selection bias. For their first memory consultation, patients may come alone or accompanied by a relative. Our objective is to better understand the impact of this factor by retrospective follow-up of geriatric memory outpatients over several years. All patients over 70 who were referred to Bretonneau Memory Clinic for the first time, between January 2006 and 2018, were included in the study. The patients who came alone formed group 1, the others, whatever type of relative accompanied them, formed group 2. We compared the Mini-Mental State Examination (MMSE) scores of patients; and for all patients who came twice for consultation with at least a 60-day interval, we compared their first MMSE with the MMSE performed at the second consultation. In total, 2,935 patients were included, aged 79.7 ± 8.4 years. Six hundred and twenty-five formed group 1 and 2,310 group 2. We found a significant difference in MMSE scores between the 2 groups of patients; and upon second consultation in group 2, but that difference was minor in group 1. Our finding of a possible confounding factor underlines the complexity of choosing comparison groups in order to minimize selection bias while maintaining clinical relevance.


2021 ◽  
pp. 204589402110295
Author(s):  
Hirohisa Taniguchi ◽  
Tomoya Takashima ◽  
Ly Tu ◽  
Raphaël Thuillet ◽  
Asuka Furukawa ◽  
...  

Although precapillary pulmonary hypertension (PH) is a rare but severe complication of patients with neurofibromatosis type 1 (NF1), its association with NF2 remains unknown. Herein, we report a case of a 44-year-old woman who was initially diagnosed with idiopathic pulmonary arterial hypertension (IPAH) and treated with PAH-specific combination therapy. However, a careful assessment for a relevant family history of the disease and genetic testing reveal that this patient had a mutation in the NF2 gene. Using immunofluorescence and Western blotting, we demonstrated a decrease in endothelial NF2 protein in lungs from IPAH patients compared to control lungs, suggesting a potential role of NF2 in PAH development. To our knowledge, this is the first time that precapillary PH has been described in a patient with NF2. The altered endothelial NF2 expression pattern in PAH lungs should stimulate work to better understand how NF2 is contributing to the pulmonary vascular remodeling associated to these severe life-threatening conditions.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Stefana Catalina Bilha ◽  
Letitia Leustean ◽  
Cristina Preda ◽  
Dumitru D. Branisteanu ◽  
Laura Mihalache ◽  
...  

Abstract Background Despite the increased fracture risk, bone mineral density (BMD) is variable in type 1 (T1D) and type 2 (T2D) diabetes mellitus. We aimed at comparing independent BMD predictors in T1D, T2D and control subjects, respectively. Methods Cross-sectional case-control study enrolling 30 T1D, 39 T2D and 69 age, sex and body mass index (BMI) – matched controls that underwent clinical examination, dual-energy X-ray absorptiometry (BMD at the lumbar spine and femoral neck) and serum determination of HbA1c and parameters of calcium and phosphate metabolism. Results T2D patients had similar BMD compared to T1D individuals (after adjusting for age, BMI and disease duration) and to matched controls, respectively. In multiple regression analysis, diabetes duration – but not HbA1c- negatively predicted femoral neck BMD in T1D (β= -0.39, p = 0.014), while BMI was a positive predictor for lumbar spine (β = 0.46, p = 0.006) and femoral neck BMD (β = 0.44, p = 0.007) in T2D, besides gender influence. Age negatively predicted BMD in controls, but not in patients with diabetes. Conclusions Long-standing diabetes and female gender particularly increase the risk for low bone mass in T1D. An increased body weight partially hinders BMD loss in T2D. The impact of age appears to be surpassed by that of other bone regulating factors in both T1D and T2D patients.


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