Publications by authors named "Chunzhen Ren"

Article Synopsis
  • The study investigates how ferroptosis, a type of cell death linked to oxidative stress, contributes to radiation-induced pulmonary fibrosis through the Nrf2/SLC7A11/GPX4 signaling pathway.
  • Fifty Wistar rats were divided into groups, with some subjected to radiation to create a model of lung fibrosis and others given extracts from Angelicae Sinensis Radix and Astragali Radix for 30 days.
  • Results indicated that radiation significantly impacted lung tissue by increasing markers of oxidative stress (like Fe²⁺ and MDA), while damaging lung structure and raising levels of reactive oxygen species, suggesting potential therapeutic effects of the herbal extracts.
View Article and Find Full Text PDF

To investigate the effects of Luhong Yixin Granules on myocardial fibrosis in rats with heart failure and its possible mechanism, a total of 60 male Wistar rats were randomly divided into the control group, model group, and low-, medium-and high-dose Luhong Yixin Granules groups, with 12 rats in each group. Except for those in the control group, rats in the other groups were induced by intraperitoneal injection of doxorubicin(DOX) into a rat model. After the Luhong Yixin Granules were dissolved in the same amount of normal saline, they were given by gavage at low, medium and high doses(2.

View Article and Find Full Text PDF

Background: Cardiovascular diseases (CVDs) stand as the foremost global cause of mortality, prompting a growing interest in using the potential of immune cells for heart injury treatment. This study aims to assess the causal association between immune cells and CVDs.

Methods: A total of 731 immune cells were derived from a previously published genome-wide association study (GWAS), which included approximately 22 million genetic variants among 3,757 individuals of Sardinian ancestry.

View Article and Find Full Text PDF

Myocardial fibrosis can induce cardiac dysfunction and remodeling. Great attention has been paid to traditional chinese medicine (TCM) 's effectiveness in treating MF. Radix Angelica sinensis (Oliv.

View Article and Find Full Text PDF

Fibrosis-related diseases (FRD) include conditions like myocardial fibrosis, pulmonary fibrosis, hepatic fibrosis, renal fibrosis, and others. The impact of fibrosis can be severe, causing organ dysfunction, reduced functionality, and even organ failure, leading to significant health issues. Currently, there is a lack of effective modern anti-fibrosis drugs in clinical practice.

View Article and Find Full Text PDF

Background: Patients frequently die from cardiac causes after radiotherapy for esophageal cancer. Early detection of cardiac death risk in these patients is crucial to improve clinical decision-making and prognosis. Thus, we modeled the risk of cardiac death after irradiation for esophageal cancer.

View Article and Find Full Text PDF
Article Synopsis
  • Cardiac death is the leading cause of mortality for esophageal cancer survivors, making it important to identify those at risk during chemotherapy to improve outcomes.
  • A nomogram model was developed and validated using a study of 37,994 chemotherapy-treated patients to predict cardiac mortality risk, focusing on factors like age, surgery, sex, and year.
  • The model showed moderate accuracy, with C-index values of 0.669 and 0.698 for training and validation datasets respectively, and AUC values indicating good predictive power for 5 and 10-year survival rates.
View Article and Find Full Text PDF

, a traditional Chinese herbal medicine and food with a long history of clinical application, is used to improve health conditions and treat various diseases. polysaccharides (HPS), flavonoids, saponins, and alkaloids, are the primary components of . HPS is the most important natural active ingredient of , which has many pharmacological effects.

View Article and Find Full Text PDF

Early diagnosis of cancer treatment-related cardiac dysfunction (CTRCD) is important as cancer therapy increases the risk of cardiac dysfunction. High-sensitivity cardiac troponin T (hs-cTnT) is a highly specific marker of myocardial injury. However, its diagnostic value for CTRCD has not been systematically evaluated.

View Article and Find Full Text PDF

Introduction: To evaluate the global research results of the catheter ablation and surgical treatment of atrial fibrillation in the past 40 years by bibliometrics, and to explore the hotspots and prospects for future development.

Methods: Relevant literatures were selected from the Web of Science Core Collection. VOSviewer 1.

View Article and Find Full Text PDF

Ethnopharmacological Relevance: Myocardial fibrosis (MF) is a common pathological manifestation of many cardiovascular diseases at a certain stage, with excessive accumulation of collagen fibers, excessive increase in collagen content, and a significant increase in collagen volume as the main pathological changes. There are currently no effective drugs for the treatment of myocardial fibrosis. Traditional Chinese medicine (TCM), the main component of the medical practice used for more than 5000 years, especially in China, often exerts a wider action spectrum than previously attempted options in treating human diseases.

View Article and Find Full Text PDF

Cardiotoxicity is a serious complication of cancer therapy. It is the second leading cause of morbidity and mortality in cancer survivors and is associated with a variety of factors, including oxidative stress, inflammation, apoptosis, autophagy, endoplasmic reticulum stress, and abnormal myocardial energy metabolism. A number of studies have shown that traditional Chinese medicine (TCM) can mitigate chemoradiotherapy-associated cardiotoxicity these pathways.

View Article and Find Full Text PDF

This study was designed to evaluate the relationship between polymorphisms in the methylenetetrahydrofolate reductase (MTHFR) gene and coronary heart disease (CHD) in populations from the Gansu region of China. The MTHFR C677T polymorphism genotypes from 209 patients with CHD, as confirmed by coronary angiography, and 212 non-CHD control patients were identified using PCR gold magnetic particle chromatography. We simultaneously evaluated homocysteine (Hcy) and folate levels in these samples using biochemical methods.

View Article and Find Full Text PDF

Effective drugs for the treatment of myocardial fibrosis (MF) are lacking. Traditional Chinese medicine (TCM) has garnered increasing attention in recent years for the prevention and treatment of myocardial fibrosis. This Article describes the pathogenesis of myocardial fibrosis from the modern medicine, along with the research progress.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the effects of Gentianopsis paludosa on ulcerative colitis (UC) fibrosis and related symptoms like intestinal diarrhea and inflammation, using a rat model induced by trinitro-benzene-sulfonic acid.
  • Researchers evaluated the severity of UC fibrosis through Masson staining and analyzed mRNA levels of specific proteins involved in fibrosis, finding that certain extracts reduced harmful mRNA expressions while increasing beneficial ones.
  • Four key active components were identified from the extracts, demonstrating significant potential for treating UC fibrosis and laying the groundwork for future drug development involving Gentianopsis paludosa.
View Article and Find Full Text PDF

Background: The purpose of this study is to report on reconstruction of complex soft-tissue defects around the metacarpophalangeal joint of the thumb using a bilobed second dorsal metacarpal artery-based island flap taken from the dorsum of the proximal phalanges of the index and long fingers.

Methods: From March of 2007 to October of 2009, the bilobed second dorsal metacarpal artery-based island flap was transferred in 13 patients. There were two defects on the metacarpophalangeal joint of the thumb.

View Article and Find Full Text PDF

Purpose: To describe the use of a pedicled osteoarticular flap harvested from the base of the third metacarpal for the treatment of traumatic defects of the metacarpophalangeal (MCP) joints.

Methods: From February 2006 to January 2008, we included in the study 15 patients with posttraumatic defects of the MCP joints. The mean age of the patients was 35 years.

View Article and Find Full Text PDF

Purpose: To describe the reconstruction of traumatic defects in the head of the proximal phalanx using an osteoarticular pedicle flap from the capitate.

Methods: From January 2004 to December 2007, we treated 15 patients with traumatic defects of the head of the proximal phalanx at our institution. All of these injuries involved 1 condyle of the proximal phalanx.

View Article and Find Full Text PDF

This article introduces the use of a modified reverse dorsal hand flap harvested from the radial portion of the dorsal hand and wrist and the distal portion of the dorsal forearm for reconstruction of a large defect involving the third to fifth metacarpophalangeal (MCP) joints and the proximal phalanges. From May 2005 to August 2008, a modified reverse dorsal hand flap was transferred in 12 hands in 12 patients (9 male and 3 female). The mean age at flap transfer was 34.

View Article and Find Full Text PDF

We report the use of the second dorsal metacarpal artery-based bilobed island flap harvested from the index and middle fingers for thumb reconstruction. From October 2006 to March 2008, the flap was performed in 13 hands in 13 patients (10 males and 3 females). The mean age at the time of operation was 45 years (range, 38 to 57 years).

View Article and Find Full Text PDF

Purpose: We report on a modified kite flap for the reconstruction of thumb pulp defects. We performed nerve repair to improve thumb pulp sensation.

Methods: From May 2005 to December 2008, 42 thumbs in 42 patients were treated.

View Article and Find Full Text PDF