阅读 BibTex 文件导致标题和摘要中的花括号

如何解决阅读 BibTex 文件导致标题和摘要中的花括号

import pandas as pd
import bibtexparser

with open('Included_studies.bib',encoding = "utf-8") as bibtex_file: 
     included = bibtexparser.load(bibtex_file)
include_df =pd.DataFrame(included.entries)

include_df['title'].head()

结果：

0 {plasma prostaglandin levels in fed and starved lean,normal and obese women}

1 {Lack of an Association Between the Presence of Tumor Necrosis Factor or Interleukin‐1 Alpha in the Blood and Weight Loss Among Elderly Patients}

2 {Effect of Weight Loss and Lifestyle Changes on Vascular Inflammatory Markers in Obese Women: A Randomized Trial}

3 {Impact of weight loss on inflammatory proteins and their association with the insulin resistance syndrome in morbidly obese patients}

4 {Expression of tumor necrosis factor (TNF)-$\alpha$ protein in the subcutaneous and visceral adipose tissue in correlation with adipocyte cell volume,serum TNF-$\alpha$,soluble serum TNF-receptor-2 concentrations and C-peptide level}

Name: title,dtype: object

如何在没有花括号的情况下阅读 BibTeX 文件？ 除此之外，utf-8 编码是否读取 alpha、beta、gamma 等字符？