Application of microbial marker in cerebral infarction diagnosis and treatment effect evaluation

A technology of microorganisms and markers, applied in the field of biomedicine, can solve the problems of high risk, refractory treatment, and high recurrence rate of cerebral infarction

Active Publication Date: 2021-01-22
THE SECOND HOSPITAL OF HEBEI MEDICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the recurrence rate of cerebral infarction is extremely high, and the risk of recurrence in a short period of time is greater and more difficult to treat
[0003] Statins (3-hydroxy-3-methylglutarphthalein coenzyme A reductase inhibitors) were initially included as lipid-lowering drugs in the secondary prevention of ischemic stroke and were widely used clinically. In-depth discovery of its role in the treatment of ischemic stroke does not stop there

Method used

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  • Application of microbial marker in cerebral infarction diagnosis and treatment effect evaluation
  • Application of microbial marker in cerebral infarction diagnosis and treatment effect evaluation
  • Application of microbial marker in cerebral infarction diagnosis and treatment effect evaluation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1 Biomarkers associated with cerebral infarction

[0050] 1. Experimental animals

[0051] Adult male C57BL / 6 mice (body weight 23.0 to 26.0 g, 8 to 12 weeks old) of a specific pathogen-free grade were purchased from Beijing Weitong Lihua. All C57BL / 6 mice were kept under specific pathogen-free conditions with relatively constant humidity (60%±5%) and temperature (22°C±3°C), light time of 12h / dark time of 12h, all Animals were given free access to food and water. The model of focal cortical cerebral infarction in mice was established by electrocoagulation, and the mice were randomly divided into two groups, the control group (pMCAO, 25 rats) and the medication group (25 rats).

[0052] 2. Drug intervention: Atorvastatin (Pfizer, USA) was dissolved in 0.9% normal saline at a concentration of 2 mg / ml. Give the drug 20mg / kg / d by intragastric administration. The cerebral infarction group was treated with an equal volume of normal saline. Fecal samples of the mi...

Embodiment 2

[0091] Embodiment 2 feces transplant experiment (FMT)

[0092] Fecal material from atorvastatin-treated mice was collected under aseptic conditions, and feces (0.1 g) from donor mice were mixed and suspended in 1 ml sterile PBS. The mixture was mixed for 15 s using a benchtop vortex (Vortex-Genie 2, Science Industries, USA), centrifuged at 800 g at room temperature for 3 min, and 500 μL of the supernatant was orally administered to PMCAO mice (n=12). Fresh feces were prepared on the day of fecal transplantation, within 15 minutes before gavage. Neurobehavior of FMT mice was measured and compared with pMCAO group (n=12).

[0093] The result is as image 3 As shown, after fecal transplantation, the neuroethology of mice was improved and the mNSS score was reduced ( image 3 A), increased Rotarod round time ( image 3 B), reducing the contact time in the adhesion removal experiment ( image 3 C) and removal time ( image 3 D).

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Abstract

The invention discloses application of a microbial marker in cerebral infarction diagnosis and treatment effect evaluation. Specifically, the microbial marker is Vampirovibrio. According to the application of the microbial marker in cerebral infarction diagnosis and treatment effect evaluation, the drug intervention effect of a subject can be judged by detecting the abundance of the Vampirovibrioin a sample of the subject. Meanwhile, the invention also provides the application of the microbial marker in treatment of cerebral infarction.

Description

technical field [0001] The application belongs to the field of biomedicine and relates to the application of microbial markers in the diagnosis of cerebral infarction and the evaluation of therapeutic effects. Background technique [0002] Cerebral infarction, also known as ischemic stroke, is one of the diseases with the highest incidence rate among cerebrovascular diseases. Data surveys show that the incidence rate, disability rate and mortality rate of cerebral infarction are very high, which seriously affects the quality of life of patients. . Cerebral infarction is a cerebrovascular disease caused by cerebral blood supply disturbance, and lacunar obstruction is the most common. The main features of cerebral infarction are acute onset, often accompanied by history of hypertension or emotional stimulation before the onset, dizziness, unsteady walking, and weakness of limbs. Severe disturbance of consciousness, sensory and motor dysfunction often occurs during the onset o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/689C12Q1/6883C12Q1/04G01N33/68C12R1/01
CPCC12Q1/6883C12Q1/689C12Q2600/106G01N33/6893G01N2800/2871
Inventor 张祥建张培培
Owner THE SECOND HOSPITAL OF HEBEI MEDICAL UNIV
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