Calreticulin immunohistochemistry in myeloproliferative neoplasms - evolution of a new cost-effective diagnostic tool: a retrospective study with histological and molecular correlation

Author(s):  
Sanjeet Roy ◽  
Marie Therese Manipadam ◽  
Poonkuzhali Balasubramanian
Biosensors ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 247
Author(s):  
Miaomiao Chen ◽  
Chunhua Zhang ◽  
Zhiqing Hu ◽  
Zhuo Li ◽  
Menglin Li ◽  
...  

The JAK2 V617F mutation is a major diagnostic, therapeutic, and monitoring molecular target of Philadelphia-negative myeloproliferative neoplasms (MPNs). To date, numerous methods of detecting the JAK2 V617F mutation have been reported, but there is no gold-standard diagnostic method for clinical applications. Here, we developed and validated an efficient Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/CRISPR associated protein 12a (Cas12a)-based assay to detect the JAK2 V617F mutation. Our results showed that the sensitivity of the JAK2 V617F/Cas12a fluorescence detection system was as high as 0.01%, and the JAK2 V617F/Cas12a lateral flow strip assay could unambiguously detect as low as 0.5% of the JAK2 V617F mutation, which was much higher than the sensitivity required for clinical application. The minimum detectable concentration of genomic DNA achieved was 0.01 ng/μL (~5 aM, ~3 copies/μL). In addition, the whole process only took about 1.5 h, and the cost of an individual test was much lower than that of the current assays. Thus, our methods can be applied to detect the JAK2 V617F mutation, and they are highly sensitive, rapid, cost-effective, and convenient.


Author(s):  
Pooja Babaso Kamble

Nadi Pariksha is the most effective diagnostic tool known in the medical field. It is cost effective,  accurate,  safe,  and gives quick results. We can conduct Nadi Pariksha on healthy individuals as well as all patients irrespective of stage of the disease also,  and even pregnant woman,  children,  elderly can undergo without any harm or side effects. However,  this technique is not being widely practised at present,  because of lack of training,  practise and knowledge about it in the present day among Ayurveda vaidyas. An iconic factor for identification of a physician,  irrespective of the time,  Region,  Nadi Pariksha can be highlighted as a common factor or even System of Medicine or Civilization of the known world. Thus,  we can perceive that Nadi Pariksha or the pulse examination remains as an effective diagnostic tool since ages. Nadi Pariksha was not been discussed among the Brihatrayees of Ayurveda. Acharya Sharangdhara was the first to document in the doctrines of Ayurveda. Thus Acharya Sharangdhara is considered as ‘The Founder of Nadi Pariksha’in Ayurveda. Nadi Pariksha was titled under the Pancha-Nidana by Acharya Sharangdhara and Ashta Sthana Pariksha by Acharya Yogaratnakara. It was the Foremost among all the other diagnostic tools mentioned by him. Later Acharyas like Acharya Bhava Mishra,  Acharya Yogaratnakara,  Acharya Basavaraja,  Acharya Kanada Maharishi,  and Acharya Ravana have contributed in giving more descriptions and importance. In the recent days Dr. Vasant lad and Dr. Sarvadeva Upadhaya’s research work interest and scope of Nadi Pariksha.


2011 ◽  
Vol 49 (5) ◽  
pp. 600-604
Author(s):  
Esther Vis ◽  
Herbert van den Berge

We questioned how many patients with epistaxis can be treated by cautery without the use of nasal packing, as cautery is more effective and efficient. To investigate this, we performed a retrospective study of a cohort of 418 patients with epistaxis who presented to one ENT consultant at the ENT department of Medisch Centrum Leeuwarden (the Netherlands) between 1997 and 2007. Main outcomes were the treatment modality (cautery and/or nasal packing), recurrence of epistaxis and need for hospitalization. In 98% of all patients the bleeding site could be found and treated by cautery. The incidence of recurrent bleeding was 6%. Two percent of all patients had to be admitted to the hospital. This is considerably lower compared with recurrence rates and hospitalization after treatment by nasal packing known from the literature. Therefore we concluded that nearly all patients can be effectively treated by cautery with a low recurrence rate. In addition, this method of treatment is very cost effective. Because cautery requires skill and appropriate facilities, we recommend special attention for this in ENT training programs.


Author(s):  
Neha Varun ◽  
Nidhi Gupta ◽  
Sana Khan

Background: Abnormal uterine bleeding (AUB) is one of the most commonly encountered gynecological problem and almost 33 % of women in gynecological outpatient department presented with abnormal uterine bleeding. Dilatation and curettage (D and C) have been the main diagnostic procedure in the evaluation of abnormal uterine bleeding patients for decades. The objective of the present study was to analyze the different types of endometrial histopathology of patients presented with the abnormal uterine bleeding and its correlation with the different types of abnormal uterine bleedingMethods: This is a retrospective study, conducted in a medical college in the Department of Obstetrics and Gynecology over a period of one year from June ’17 to June ’18. All cases of AUB more than 35 years of the age group who underwent D and C procedure were included in this study. Total 100 patients were analyzed.Results: Total 100 patients were analyzed. Age group ranges from 35-58 years and most common age group presenting with AUB was 35-39 years. The most common presenting complaint was menorrhagia 54% (54/100). Histopathology of endometrium showed non-organic causes in 80% (80/100) of AUB patients and the remaining 20% (20/100) had organic causes. Most common endometrial histopathology among non-organic causes was proliferative endometrium 43.75% (35/80) and the most common organic cause was endometrial polyp 40% (8/20). Endometrial hyperplasia was found in 30% (6/20) and endometrial carcinoma was found in 20% (4/20) of cases among organic causes.Conclusions: D and C is the useful and the cost-effective diagnostic procedure in the evaluation of AUB. Histopathological evaluation of endometrial samples is especially indicated in AUB patients to rule out carcinoma and preneoplastic conditions as histopathology is 100% diagnostic in cases of endometrial hyperplasia and carcinoma.


2014 ◽  
Vol 17 (4) ◽  
pp. 717-719 ◽  
Author(s):  
A. Bocheńska ◽  
M. Kwiatkowska ◽  
A. Pomianowski ◽  
T. Monowid ◽  
Z. Adamiak

Abstract EEG recording is used in veterinary medicine as a diagnostic tool to support clinical diagnosis of idiopathic epilepsy and to identify focal seizure activity. This retrospective study was designed to compare EEG procedures in 23 dogs with idiopathic epilepsy before and after phenobarbital treatment. Differences among standard deviations for particular bands were significant. During phenobarbital treatment the delta band decreased.


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