1.Novel Immune-related Proteins Identified from Mytilus coruscus by Hemocytes Full-length Transcriptome and Serum Differential Proteome
Wen-Hui XIAO ; Hao-Dong WANG ; Zong-Xin YANG ; Fang SONG ; Yue WANG ; Jian-Yu HE ; Xiao-Lin ZHANG ; Xiao-Jun YAN ; Zhi LIAO
Chinese Journal of Biochemistry and Molecular Biology 2024;40(7):947-963
Mytilus is one of bivalves with great economic and ecological values.The innate immune de-fense of Mytilus shows great significance in the study of marine biological immunology.Hemolymph is the main immune tissue for Mytilus.The Nanopore full-length transcriptome of Mytilus coruscus hemocytes,and the serum differential proteomics based on SDS-PAGE analysis were performed to identify key pro-teins involving in the immune response of Mytilus hemolymph in response of different bacteria and fungi stresses.A total of 44 proteins were identified in the serum induced by different microorganisms.Among them,26 proteins showed significant differential expression level in response to different microbial stres-ses,and their functions were involved in protein folding protection,cell autophagy and apoptosis regula-tion,reactive oxygen species production,energy metabolism regulation,cell detoxification,and immune regulation.The changes in expression levels of these proteins varied in response to different bacterial and fungal stresses,suggesting that Mytilus has different immune response strategies to different bacterial and fungal stresses.The results provide a new scientific basis for understanding the differential immune mech-anism of Mytilus innate immune system in response to different types of microbial invasion,as well as the screening of specific biomarker proteins for microbial infection,and provide ideas for the healthy develop-ment and disease prevention of shellfish aquaculture.
2.Effects of radiation on pharmacokinetics
Jie ZONG ; Hai-Hui ZHANG ; Gui-Fang DOU ; Zhi-Yun MENG ; Ruo-Lan GU ; Zhuo-Na WU ; Xiao-Xia ZHU ; Xuan HU ; Hui GAN
The Chinese Journal of Clinical Pharmacology 2024;40(13):1996-2000
Radiation mainly comes from medical radiation,industrial radiation,nuclear waste and atmospheric ultraviolet radiation,etc.,radiation is divided into ionizing radiation and non-ionizing radiation.Studying the effects of ionizing and non-ionizing radiation on drug metabolism,understanding the absorption and distribution of drugs in the body after radiation and the speed of elimination under radiation conditions can provide reasonable guidance for clinical medication.This article reviews the effects of radiation on the pharmacokinetics of different drugs,elaborates the changes of different pharmacokinetics under radiation state,and discusses the reasons for the changes.
3.Optimization of production process of Aeromonas veronii CA07 strain inactivated vaccine
SUN Cheng⁃wen ; GONG Hua ; LAI Ying⁃tiao ; JIANG Xiao⁃yan ; REN Yan ; CHEN Zong⁃hui ; HUANG Zhi⁃bin ; TAO Jia⁃fa
Chinese Journal of Biologicals 2023;36(1):76-80+84
Abstract:Objective To optimize the production process of inactivated vaccine of Aeromonas veronii(AV)CA07 strain.
Methods The fermentation culture process of AV CA07 strain liquid was determined through the optimization of the culture
time(2~16 h),medium(optimized fermentation medium,LB medium and NB medium)and fermentation conditions(in⁃
oculation amount of 1%,5%,10% and 15%;ventilation rate of 2,4,6 and 8 L/min and fermentation time of 6,8,10
and 12 h). The optimal inactivation process was determined through the comparison of the final concentration of formalde⁃
hyde solution(0. 10%,0. 20%,0. 30% and 0. 40%),inactivation temperature(28 and 37 ℃)and inactivation time(24,
48 and 72 h). The large⁃scale production process of inactivated vaccine of AV CA07 strain in 500 L fermentor was estab⁃
lished and the prepared vaccines were tested for safety and immunogenicity. Results The optimal inoculation amount of AV
CA07 strain was 5%,ventilation rate was 4 L/min and culture time was 10 ~ 12 h. The optimal inactivation condition was
adding formaldehyde solution with final concentration of 0. 30% incubating at 37 ℃ for 24 h. The number of viable bacteria
in the fermentation broth of AV CA07 strain prepared in 500 L fermentor was more than 8 × 109 CFU/mL. All crucian carps
immunized with the inactivated vaccine by abdomen survived. After challenge,the relative immune protection rate was more
than 90%. Conclusion AV CA07 strain inactivated vaccine prepared by optimized production process showed good safety
and immunogenicity.
4.Epidemiological Survey of Hemoglobinopathies Based on Next-Generation Sequencing Platform in Hunan Province, China.
Hui XI ; Qin LIU ; Dong Hua XIE ; Xu ZHOU ; Wang Lan TANG ; De Guo TANG ; Chun Yan ZENG ; Qiong WANG ; Xing Hui NIE ; Jin Ping PENG ; Xiao Ya GAO ; Hong Liang WU ; Hao Qing ZHANG ; Li QIU ; Zong Hui FENG ; Shu Yuan WANG ; Shu Xiang ZHOU ; Jun HE ; Shi Hao ZHOU ; Fa Qun ZHOU ; Jun Qing ZHENG ; Shun Yao WANG ; Shi Ping CHEN ; Zhi Fen ZHENG ; Xiao Yuan MA ; Jun Qun FANG ; Chang Biao LIANG ; Hua WANG
Biomedical and Environmental Sciences 2023;36(2):127-134
OBJECTIVE:
This study was aimed at investigating the carrier rate of, and molecular variation in, α- and β-globin gene mutations in Hunan Province.
METHODS:
We recruited 25,946 individuals attending premarital screening from 42 districts and counties in all 14 cities of Hunan Province. Hematological screening was performed, and molecular parameters were assessed.
RESULTS:
The overall carrier rate of thalassemia was 7.1%, including 4.83% for α-thalassemia, 2.15% for β-thalassemia, and 0.12% for both α- and β-thalassemia. The highest carrier rate of thalassemia was in Yongzhou (14.57%). The most abundant genotype of α-thalassemia and β-thalassemia was -α 3.7/αα (50.23%) and β IVS-II-654/β N (28.23%), respectively. Four α-globin mutations [CD108 (ACC>AAC), CAP +29 (G>C), Hb Agrinio and Hb Cervantes] and six β-globin mutations [CAP +8 (C>T), IVS-II-848 (C>T), -56 (G>C), beta nt-77 (G>C), codon 20/21 (-TGGA) and Hb Knossos] had not previously been identified in China. Furthermore, this study provides the first report of the carrier rates of abnormal hemoglobin variants and α-globin triplication in Hunan Province, which were 0.49% and 1.99%, respectively.
CONCLUSION
Our study demonstrates the high complexity and diversity of thalassemia gene mutations in the Hunan population. The results should facilitate genetic counselling and the prevention of severe thalassemia in this region.
Humans
;
beta-Thalassemia/genetics*
;
alpha-Thalassemia/genetics*
;
Hemoglobinopathies/genetics*
;
China/epidemiology*
;
High-Throughput Nucleotide Sequencing
5.Treatment outcome of laparoscopic partial nephrectomy in patients with renal tumors of moderate to high complexity.
Min QIU ; You Long ZONG ; Bin Shuai WANG ; Bin YANG ; Chu Xiao XU ; Zheng Hui SUN ; Min LU ; Lei ZHAO ; Jian LU ; Cheng LIU ; Xiao Jun TIAN ; Lu Lin MA
Journal of Peking University(Health Sciences) 2023;55(5):833-837
OBJECTIVE:
To investigate the treatment outcome of laparoscopic partial nephrectomy in the patients with renal tumors of moderate to high complexity (R.E.N.A.L. score 7-10).
METHODS:
In the study, 186 patients with a renal score of 7-10 renal tumors who underwent laparoscopic partial nephrectomy in Peking University Third Hospital from February 2016 to April 2021 were selected. Laparoscopic partial nephrectomy was performed after examination. The patients were followed-up, and their postoperative hemoglobin, creatinine, complications, and length of hospital stay recorded. The data were represented by mean±standard deviation or median (range).
RESULTS:
There were 128 males and 58 females in this group, aged (54.6±12.8) years, with body mass index of (25.4 ± 3.4) kg/m2; The tumors were located in 95 cases on the left and 91 cases on the right, with maximum diameter of (3.1±1.2) cm. The patient's preoperative hemoglobin was (142.9±15.8) g/L, and blood creatinine was 78 μmol/L (47-149 μmol/L). According to preoperative CT images, the R.E.N.A.L. score was 7 points for 43 cases, 8 points for 67 cases, 9 points for 53 cases, and 10 points for 23 cases. All the ope-rations were successfully completed, with 12 cases converted to open surgery. The operation time was 150 minutes (69-403 minutes), the warm ischemic time was 25 minutes (3-60 minutes), and the blood loss was 30 mL (5-1 500 mL). There were 9 cases of blood transfusions, with a transfusion volume of 800 mL (200-1 200 mL). Postoperative hemoglobin was (126.2±17.0) g/L. The preoperative crea-tinine was 78 μmol/L (47-149 μmol/L), the postoperative creatinine was 83.5 μmol/L (35-236 μmol/L), the hospital stay was 6 days (3-26 days), and surgical results achieved "the trifecta" in 87 cases (46.8%). In the study, 167 cases were followed up for 12 months (1-62 months), including 1 case with recurrence and metastasis, 4 cases with metastasis, and 2 cases with other tumors (1 case died).
CONCLUSION
Laparoscopic partial nephrectomy is safe and effective in the treatment of renal tumors with R.E.N.A.L. score of 7-10. Based on the complexity of the tumor, with the increase of difficulty, the warm ischemia time and operation time tend to increase gradually, while "the trifecta" rate gradually decreases. The complications of this operation are less, and the purpose of preserving renal function to the greatest extent is achieved.
Male
;
Female
;
Humans
;
Creatinine
;
Retrospective Studies
;
Kidney Neoplasms/pathology*
;
Nephrectomy/methods*
;
Treatment Outcome
;
Laparoscopy
;
Hemoglobins
6.Efficacy and safety of sacubitril/valsartan after six months in patients with heart failure with reduced ejection fraction and asymptomatic hypotension.
An-Hu WU ; Zong-Wei LIN ; Zhuo-Hao YANG ; Hui ZHANG ; Jia-Yi HU ; Yi WANG ; Rui TANG ; Xin-Yu ZHANG ; Xiao-Ping JI ; Hui-Xia LU
Journal of Geriatric Cardiology 2023;20(12):855-866
BACKGROUND:
It is not clear whether sacubitril/valsartan is beneficial for patients with heart failure (HF) with reduced ejection fraction (HFrEF) and low systolic blood pressure (SBP). This study aimed to investigate the efficacy and tolerability of sacubitril/valsartan in HFrEF patients with SBP < 100 mmHg.
METHODS & RESULTS:
An observational study was conducted on 117 patients, 40.2% of whom had SBP < 100 mmHg without symptomatic hypotension, and 59.8% of whom had SBP ≥ 100 mmHg in an optimized HF follow-up management system. At the 6-month follow-up, 52.4% of patients with SBP < 100 mmHg and 70.0% of those with SBP ≥ 100 mmHg successfully reached the target dosages of sacubitril/valsartan. A reduction in the concentration of N-terminal pro-B-type natriuretic peptide was similar between patients with SBP < 100 mmHg and SBP ≥ 100 mmHg (1627.5 pg/mL and 1340.1 pg/mL, respectively; P = 0.75). The effect of sacubitril/valsartan on left ventricular ejection fraction was observed in both SBP categories, with a 10.8% increase in patients with SBP < 100 mmHg (P < 0.001) and a 14.0% increase in patients with SBP ≥ 100 mmHg (P < 0.001). The effects of sacubitril/valsartan on SBP were statistically significant and inverse across both SBP categories (P = 0.001), with an increase of 7.5 mmHg in patients with SBP < 100 mmHg and a decrease of 11.5 mmHg in patients with SBP ≥ 100 mmHg. No statistically significant differences were observed between the two groups in terms of the occurrence of symptomatic hypotension, deteriorating renal function, hyperkalemia, angioedema, or stroke.
CONCLUSIONS
Within an optimized HF follow-up management system, sacubitril/valsartan exhibited excellent tolerability and prompted left ventricular reverse remodeling in patients with HFrEF who presented asymptomatic hypotension.
7.Clinical efficacy and safety of venetoclax combined with multidrug chemotherapy in the treatment of 15 patients with relapsed or refractory early T-cell precursor acute lymphoblastic leukemia.
Jin Yu KONG ; Li Hong ZONG ; Yan PU ; Yin LIU ; Xin KONG ; Meng Yun LI ; Jian ZHANG ; Bao Quan SONG ; Sheng Li XUE ; Xiao Wen TANG ; Hui Ying QIU ; De Pei WU
Chinese Journal of Hematology 2023;44(8):649-653
Objective: To explore the efficacy and safety of Venetoclax combined with multidrug chemotherapy in patients with relapsed or refractory early T-cell precursor acute lymphoblastic leukemia (R/R ETP-ALL) . Methods: This study retrospectively analyzed 15 patients with R/R ETP-ALL who received Venetoclax combined with multidrug chemotherapy from December 2018 to February 2022. Among them, eight cases were combined with demethylated drugs, four cases were combined with demethylated drugs and HAAG chemotherapy regimen, two cases were combined with demethylated drugs and CAG regimen, and one case was combined with Cladribine. Specific usage and dosage of Venetoclax: 100 mg on day 1, 200 mg on day 2, 400 mg on day 3-28, orally; when combined with azole antifungal drugs, dosage was reduced to 100 mg/d. Results: Fifteen patients (10 males and 5 females) with R/R ETP-ALL were treated with Venetoclax and multidrug chemotherapy with a median age of 35 (12-42) years old. Of 4 refractory and 11 relapsed patients, the efficacy was evaluated on the 21th day following combined chemotherapy: the overall response rate, the complete response (CR) rate, and the CR with incomplete hematological recovery (CRi) rate were 67.7% (10/15), 60.0% (9/15), and 6.7% (1/15), respectively. For the overall study population, the 12-month overall survival (OS) rate was 60.0%, and the median OS was 17.7 months. The disease-free survival (DFS) rate of all CR patients at 12 months was 60.0%, and the median DFS did not reach. About 14 patients had Ⅲ-Ⅳ hematological toxicity, but these adverse reactions were all controllable. No adverse reaction in the nervous system and tumor lysis syndrome occurred in this study, and no adverse reaction of organs above grade Ⅲ occurred. Conclusion: Venetoclax combined with multidrug chemotherapy may be a safe and promising treatment option for patients with R/R ETP-ALL.
Male
;
Female
;
Humans
;
Adult
;
Retrospective Studies
;
Treatment Outcome
;
Bridged Bicyclo Compounds, Heterocyclic/therapeutic use*
;
Antineoplastic Combined Chemotherapy Protocols
;
Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/drug therapy*
;
Precursor Cells, T-Lymphoid
;
Leukemia, Myeloid, Acute/drug therapy*
8.Mechanism of Mongolian drug Naru-3 in initiation of neuroinflammation of neuropathic pain from MMP9/IL-1β signaling pathway.
Fang-Ting ZHOU ; Ying ZONG ; Yuan-Bin LI ; Ren-Li CAO ; Wu-Qiong HOU ; Li-Ting XU ; Fei YANG ; Yan-Li GU ; Xiao-Hui SU ; Qiu-Yan GUO ; Wei-Jie LI ; Hui XIONG ; Chao WANG ; Na LIN
China Journal of Chinese Materia Medica 2023;48(15):4173-4186
Neuropathic pain(NP) has similar phenotypes but different sequential neuroinflammatory mechanisms in the pathological process. It is of great significance to inhibit the initiation of neuroinflammation, which has become a new direction of NP treatment and drug development in recent years. Mongolian drug Naru-3 is clinically effective in the treatment of trigeminal neuralgia, sciatica, and other NPs in a short time, but its pharmacodynamic characteristics and mechanism of analgesia are still unclear. In this study, a spinal nerve ligation(SNL) model simulating clinical peripheral nerve injury was established and the efficacy and mechanism of Naru-3 in the treatment of NPs was discussed by means of behavioral detection, side effect evaluation, network analysis, and experimental verification. Pharmacodynamic results showed that Naru-3 increased the basic pain sensitivity threshold(mechanical hyperalgesia and thermal radiation hyperalgesia) in the initiation of SNL in animals and relieved spontaneous pain, however, there was no significant effect on the basic pain sensitivity threshold and motor coordination function of normal animals under physiological and pathological conditions. Meanwhile, the results of primary screening of target tissues showed that Naru-3 inhibited the second phase of injury-induced nociceptive response of formalin test in mice and reduced the expression of inflammatory factors in the spinal cord. Network analysis discovered that Naru-3 had synergy in the treatment of NP, and its mechanism was associated with core targets such as matrix metalloproteinase-9(MMP9) and interleukin-1β(IL-1β). The experiment further took the dorsal root ganglion(DRG) and the stage of patho-logical spinal cord as the research objects, focusing on the core targets of inducing microglial neuroinflammation. By means of Western blot, immunofluorescence, agonists, antagonists, behavior, etc., the mechanism of Naru-3 in exerting NP analgesia may be related to the negative regulation of the MMP9/IL-1β signaling pathway-mediated microglia p38/IL-1β inflammatory loop in the activation phase. The relevant research enriches the biological connotation of Naru-3 in the treatment of NP and provides references for clinical rational drug use.
Rats
;
Mice
;
Animals
;
Matrix Metalloproteinase 9/metabolism*
;
Rats, Sprague-Dawley
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Neuroinflammatory Diseases
;
Interleukin-1beta/metabolism*
;
Spinal Cord/metabolism*
;
Signal Transduction
;
Hyperalgesia/metabolism*
;
Neuralgia/metabolism*


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