Is there a low cost catheter to measure pressure in the pulmonary artery in rats?

More Karla Waldrich's questions See All

How can I report grams of dry weight or dry sample of a plant extract that was concentrated and then freeze-dried?

for context, they are methanol/water extracts that were concentrated in a rotavapor and then freeze-dried. thank U.

09 May 2024 9,941 3 View

Can anyone recommend a good positive control to evaluate early apoptosis by FACS using Annexin V/PI method on MDA-MB-231 and MCF7 cells?

I am looking for suitable positive control for early apoptosis detection to compensation by using Annexin-V + propidium iodide in FACS. If anyone has an experience with such a drug kindly assist...

07 May 2023 6,879 2 View

Can we remove tooth cavity without drilling?

Example, is there some liquid we can gargle to remove cavity?Something that efects cavity but not enamel or gums?

27 November 2022 8,442 3 View

Which DNA ladder do you use with Diamond™ Nucleic Acid Dye?

Hi everyone! I put Diamond dye directly when I make gel (solid). Previosly I used Simply Load DNA ladder and I didn't have problem but this ladder is currently unaviable in my country. I tried...

20 October 2022 3,581 0 View

Information to include in the synthesis of results of a qualitative systematic review?

I´m going to perform a qualitative systematic review and one thing that really confuses me is the fact that most articles, during sections like the discussion, tend to support their findings by...

21 February 2022 9,846 3 View

Can I dissolve?

I'm trying to dissolve sodium alginate in a co-solvent of formic acid: acetic acid, but until now I can not get it. Do yoy know if is this possible ? Because what I find in the literature is thant...

17 October 2021 5,723 5 View

How do I use multiple regression using data taken from different point in time?

For the research background, i have one dependent variable and 4 independent variables. My data are from five companies taken from 2016-2020. From what I understood (which is also based on our...

04 September 2021 7,596 5 View

Does anyone have a copy of the sTOFHLA?

Peppercorn books is out of business, and that the creator of the test has been dead for over 5 years. I am looking to use this tool to assess literacy in community dwelling seniors as part of my...

25 January 2021 4,468 2 View

Is there any chemical safe for sea environment, but could be used for repelling planktons and microorganisms?

As an example of Julia Child, whose first receipe was shark repelent, my team and I are looking for some chemicals which wont harm planktons but will help keep planktons from our robot in sea.

20 December 2020 9,847 4 View

Robot that helps clean our seas of microplastics?

My team and I are curently working on a project is focused on preventing microplastics and collecting plastic particles up to 2 * 2mm. Our biggest concern is harming sea life and destroying...

29 November 2020 9,483 5 View

How can I find a subject for PhD?

I need help for find a subject for PhD in insect physiology

12 July 2024 8,227 1 View

My article: The Extended Pedersen hypothesis can you correct the the name of first Author?

In My article: The Extended Pedersen hypothesis (published, February 1988 Clinical Physiology and Biochemistry 6(2):68-73,) there is mistake of the name of first Author: it is not Catherine...

11 July 2024 1,801 2 View

Fish physiology and biochemistry journal ?

No response from fish physiology and biochemistry journal after a year of peer review. Journal editorial team is not responding even for Request for withdrawal of our manuscript. We are struck...

25 June 2024 8,918 0 View

How is skeletal and respiratory muscle ultrasound being used in the clinical setting, and what are the barriers and facilitators?

Are you a qualified health professional working in the acute adult setting? If yes, then we want to hear from you! Link to survey: https://q.surveys.unimelb.edu.au/jfe/form/SV_aWORJRowoBvxC1U We...

15 June 2024 7,978 1 View

I am looking for phd candidates on these topics. Its a fully funded opportunity at Manipal Academy of Higher Education. If you know of any ?

1. Aerosolized drug delivery in the respiratory tract 2. Aero-hydrodynamic comparision of low reynolds number airfoils

24 April 2024 3,141 1 View

Discuss the anaesthetic considerations for paediatric patients with comorbidities respiratory conditions?

Discuss the anaesthetic considerations for paediatric patients with comorbidities respiratory conditions?Paediatric patients with respiratory conditions present unique challenges for anaesthesia...

09 April 2024 2,253 2 View

Discuss the physiological changes in maternal cardiovascular, respiratory, and hematological systems during pregnancy and their implications for anae?

Discuss the physiological changes in maternal cardiovascular, respiratory, and hematological systems during pregnancy and their implications for anaesthesia. During pregnancy, significant...

09 April 2024 6,252 1 View

Discuss the role of mechanical ventilation in the management of respiratory failure in the ICU?

Mechanical ventilation plays a crucial role in the management of respiratory failure in the intensive care unit (ICU). Respiratory failure occurs when the respiratory system fails to maintain...

07 April 2024 4,518 1 View

Compare and contrast ECMO with other forms of mechanical circulatory and respiratory support, mechanical ventilation and intra-aortic balloonPump?

Mechanical ventilation primarily supports respiratory function, while an IABP provides temporary circulatory support in cardiac failure. ECMO, on the other hand, offers comprehensive...

01 April 2024 2,235 1 View

How do I know how much isoflurane to put in the vaporizer for surgery on rats?

That is, how many milliliters are used in each surgery? I have searched for information regarding consumption by respiratory volume or per kg of weight but I cannot find information.

24 March 2024 6,744 1 View

Aurélien Pichon

Dear Karla, with our Biopac transducer we connect polyethylene tube (catheter) to a cut needle and we connect this system directly to the Biopac pressure transducer. Obvioulsy we also shape the extremity of the catheter to facilitate PAP measurement in rat heart. It is really sheap and convenient. Sincerely. Aurélien

Karla Waldrich

Dear Aurélien,

Thanks for your valuable answer. I consulted Biopac Systems to acquire the Biopac module to this work but they send me a total price around U$ 22.000. Biopac is really amazing but I am doing this study with my own resources. No funds is available. So, to a brazilian researcher is a great amount of money!

Thank you very much for your interest in help me.

Best wishes,

Karla

Perhaps you can connect the needle directly to the Gould transducer...

Ru-Jeng Teng

This is the article I read a few years ago that may work for you.

Catheterization of the pulmonary artery in the closed-chest rat

J Appl Physiol October 1, 1981 51:(4) 1047-1050

Dear Aurélien, I´ll try to do that! Thank you!!

Dear Ru-Jeng, I`ll pick up this article! Thank you for your help!!