1.Acupuncture at Weizhong (BL40) attenuates acetic acid-induced overactive bladder in rats by regulating brain neural activity through the modulation of mast cells and tibial nerves.
Xin LIU ; Chao-Yue ZHANG ; Xiu-Yu DU ; Shan-Shan LI ; Yu-Qing WANG ; Yi ZHENG ; Han-Zhi DENG ; Xiao-Qin FANG ; Jia-Ying LI ; Zu-Qing WANG ; Shi-Fen XU ; Yi-Qun MI
Journal of Integrative Medicine 2025;23(1):46-55
OBJECTIVE:
The present study evaluated the effects of deep acupuncture at Weizhong acupoint (BL40) on bladder function and brain activity in a rat model of overactive bladder (OAB), and investigated the possible mechanisms around the acupuncture area that initiate the effects of acupuncture.
METHODS:
Adult female Sprague-Dawley rats were randomly divided into six groups, comprising a control group, model group, group treated with deep acupuncture at BL40, group treated with shallow acupuncture at BL40, group treated with acupuncture at non-acupoint next to BL40, and group treated with acupuncture at Xuanzhong (GB39). Urodynamic evaluation was used to observe the urination, and functional magnetic resonance imaging was used to observe the brain activation. The mechanism of acupuncture at BL40 in regulating bladder function was explored by toluidine blue staining and enzyme-linked immunosorbent assay, and the mechanism was verified by stabilizing mast cells (MCs) or blocking tibial nerve.
RESULTS:
Deep acupuncture at BL40 significantly increased the intercontraction interval in OAB rats and enhanced the mean amplitude of low frequency fluctuation of primary motor cortex (M1), periaquaductal gray matter (PAG), and pontine micturition center (PMC). It also increased the zero-lag functional connectivity between M1 and PAG and between PAG and PMC. Shallow acupuncture at BL40 and acupuncture at non-acupoint or GB39 had no effect on these indexes. Further studies suggested that deep acupuncture at BL40 increased the number and degranulation rate of MCs as well as the contents of 5-hydroxytryptamine, substance P, and histamine in the tissues around BL40. Blocking the tibial nerve by lidocaine injection or inhibiting MC degranulation by sodium cromoglycate injection obstructed the effects of acupuncture on restoring urinary function and modulating brain activation in OAB rats.
CONCLUSION
Deep acupuncture at BL40 may be more effective for inhibiting OAB by promoting degranulation of MCs around the acupoint and stimulating tibial nerve, thereby regulating the activation of the brain area that controls the lower urinary tract. Please cite this article as: Liu X, Zhang CY, Du XY, Li SS, Wang YQ, Zheng Y, Deng HZ, Fang XQ, Li JY, Wang ZQ, Xu SF, Mi YQ. Acupuncture at Weizhong (BL40) attenuates acetic acid-induced overactive bladder in rats by regulating brain neural activity through the modulation of mast cells and tibial nerves. J Integr Med. 2025; 23(1): 46-55.
Animals
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Urinary Bladder, Overactive/physiopathology*
;
Mast Cells/physiology*
;
Rats, Sprague-Dawley
;
Female
;
Acupuncture Therapy
;
Acupuncture Points
;
Rats
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Brain/physiopathology*
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Tibial Nerve/physiopathology*
;
Acetic Acid
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Urinary Bladder/physiopathology*
2.Chemical constituents from n-butanol fraction of Corydalis impatiens and their antioxidant activities
Chao-Fan DENG ; Ze-Dong NAN ; Zhen-Zhen WANG ; Jing-Ling YANG ; Zhen-Yu AN ; Xiu-Li WU ; Xiao-Li MA ; Zhi-Bo JIANG
Chinese Traditional Patent Medicine 2024;46(11):3671-3676
AIM To study the chemical constituents from n-butanol fraction of Corydalis impatiens(Pall.)Fisch.and their antioxidant activities.METHODS The n-butanol fraction was isolated and purified by silica gel,MCI,ODS,Sephadex LH-20 and semi-preparative HPLC,then the structures of obtained compounds were identified by physicochemical properties and spectral data.The antioxidant activities were determined by DPPH method and tyrosinase method.RESULTS Fourteen compounds were isolated and identified as nicotinamide(1),methyl L-pyroglutamate(2),bungeanoline F(3),monomethyl fumarate(4),5-hydroxymethylfurfural(5),4-hydroxybenzoic acid(6),hydroxybenzoate(7),methyl 3,4-dihydroxybenzoate(8),methyl ferulate(9),dimethylcaffeic acid(10),dimethyl feruloyl malate(11),(-)-4-O-feruloylquinic acid(12),syringaresinol(13)and(-)-loliolide(14).Compounds 1,8,11 and 13 showed strong antioxidant activites on DPPH free radicals,with IC50 values ranging from 54.47 to 97.4 μmol/L.Compound 13 had potential inhibitory effect on tyrosinase.CONCLUSION Compounds 4-14 are first isolated from Corydalis genus,and 3 is isolated from this plant for the first time.Compounds 1,8,11 and 13 have strong antioxidant activities.
3.A prospective study of the perforator evaluation and eccentric design of anterolateral thigh flap based on superficial fascial perforators assisted by modified computed tomography angiography.
Yue Heng ZHANG ; Wen Ju CUI ; Kun Xiu SONG ; Le Gang SUN ; Fang WANG ; Xiao Zhi LIU ; Zhi Yang DENG ; Zhi Qiang ZHANG ; Yong Tao LIU
Chinese Journal of Burns 2023;39(2):141-149
Objective: To explore the preoperative whole perforator evaluation and intraoperative eccentric design of anterolateral thigh flap (ALTF) based on superficial fascial perforators by modified computed tomography angiography (CTA), and the clinical effects were observed. Methods: A prospective observational study was adopted. Twelve patients with oral and maxillofacial tumors and 10 patients with open injury of the upper limb with large soft tissue defects were hospitalized in the Department of Hand & Microsurgery and Department of Oral & Maxillofacial Surgery of Affiliated Hospital of Binzhou Medical University from January 2021 to July 2022, with 12 males and 10 females, aged from 33 to 75 years, an average age of 56.6 years. The wounds of the patients with oral and maxillofacial tumors were reconstructed by ALTF after the extensive tumor resection and radical cervical lymph node dissection in the same stage; the wounds of the patients with skin and soft tissue defect on the upper limb were covered by ALTF in stage Ⅱ after debridement in stage Ⅰ. After debridement, the area of wound was 3.5 cm×3.5 cm-25.0 cm×10.0 cm and the area of the required flap area was 4.0 cm×4.0 cm-23.0 cm×13.0 cm. Modified CTA scan was performed on the donor site of ALTF before the operation, with the parameters of modified CTA being set to mainly reduce the tube voltage and tube current, and increase the contrast dose and the dual phase scan. The acquired image data were sent to GE AW 4.7 workstation and adopted the volume reconstruction function for visual reconstruction and evaluation of the whole perforator. The information of perforator and source artery was marked on the body surface before operation according to the above evaluation. During the operation, an eccentric flap centered on the visible superficial fascia whole perforator was designed and cut according to the desired flap area and shape. The donor sites of the flap were repaired by direct sutures or full-thickness skin grafts. The total radiation dose was compared between the modified CTA scan and the traditional CTA scan. The distribution of outlet point of perforator of double thighs, the length and direction of superficial fascia perforators based modified CTA were recorded. The type, number, and origin of the target perforator, distribution of of outlet point of perforator, and the diameter, course, and branch of the source artery observed before the operation were compared with those observed during the operation. The healing of donor site wound and the survival of flaps in recipient site were observed after operation. The texture and appearance of flap, oral and upper limb functions, and the functions of femoral donor sites were followed up. Results: The total radiation dose of modified CTA scan was lower than that of the traditional CTA scan. A total of 48 perforators of double thighs were observed, among which, 31 (64.6%) perforators went outward and downward, 9 (18.8%) perforators went inward and downward, 6 (12.5%) perforators went outward and upward, and 2 (4.2%) perforators went inward and upward, and the average length of superficial fascia perforators was 19.94 mm. The preoperative observed type, number, and source of the perforator, the distribution of the outlet point of the perforator, diameter, course, and branches of the source artery were basically consistent with the intraoperative exploration. The types of 15 septocutaneous (including musculoseptocutaneous) perforators and 10 musculocutaneous perforators observed before the operation was consistent with intraoperative exploration. The distance between the mark of the surface perforator point and the actual exit point of the perforator during operation was (0.38±0.11) mm. All flaps survived without vascular crisis. The donor site wounds of 5 cases of skin grafting and 17 cases of direct suturing wounds healed well. The postoperative follow-up was 2 months to 1 year, with an average of 8.2 months, the flaps were soft and slightly bloated; the function of diet and mouth closing was accessible in patients with oral and maxillofacial tumors, the speech function was mildly impaired in patients with tongue cancer, but they could complete basic oral communication; the wrist and elbow joints and forearm rotation function were not significantly limited in patients with upper limb soft tissue injuries; there was no obvious tightness in the donor sites, and the function of the hip and knee joints was not limited. Conclusions: The whole perforator and even the subcutaneous perforator of the donor site of ALTF can be evaluated by modified CTA, and the flap can be used in oral or maxillofacial reconstruction and repair of skin and soft tissue defects of upper limbs to achieve good results. By clarifying the type, number, and source of the perforator, the distribution of the outlet point of the perforator, diameter, course, and branches of the source artery before the operation, the eccentric design of the ALTF based on the superficial fascia perforator was realized. This study has strong guiding value.
Female
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Male
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Humans
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Middle Aged
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Adult
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Aged
;
Thigh
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Computed Tomography Angiography
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Prospective Studies
;
Subcutaneous Tissue
;
Tomography, X-Ray Computed
4.Multicenter Prospective Study of Different Induction Regimens of Azacytidine in Treatment of Elderly Patients with Acute Myeloid Leukemia.
Cai-Zhao WANG ; Xiao-Xia CHU ; Hong-Yan YU ; En-Qin YANG ; Ling WANG ; Xiu-Zhi DENG ; Xue-Hong RAN ; Li-Qing WANG ; Chun-Ting ZHAO ; Xiao-Dan LIU
Journal of Experimental Hematology 2023;31(4):1005-1013
OBJECTIVE:
To observe the efficacy and safety of different induction regimens of same total dosage of azacitidine (Aza), including standard dose (standard dose group) and low-dose long-term (adjusted dose group), in the treatment of elderly acute myeloid leukemia (AML).
METHODS:
A total of 103 elderly patients with AML (non-acute promyelocytic leukemia) from January 2020 to June 2021 were enrolled. Aza was administered at the standard dose of 75 mg/(m2·d) for 7 days in the standard dose group (50 cases), while at 100 mg/d for 7-12 days in the adjusted dose group (53 cases). The administration days in adjusted dose group was calculated based on the total standard dose of the patient's single course of treatment. The efficacy and safety between standard dose group and adjusted dose group were compared. Subgroup analysis were performed in the two groups for Aza alone, Aza combined with BCL-2 inhibitor, and Aza combined with low-dose chemotherapy for efficacy and safety.
RESULTS:
There were no significant differences in overall response rate (ORR), incidence of adverse reaction, and 1-year overall survival (OS) rate between standard dose group and adjusted dose group (P >0.05). The ORR of combination was higher than that of Aza alone (P < 0.05), while there was no significant difference in ORR between Aza combined with BCL-2 inhibitor and Aza combined with low-dose chemotherapy (P >0.05). The combination of BCL-2 inhibitor did not increase the incidence of adverse reactions compared wtih Aza alone. There was a higher risk of myelosuppression and pulmonary infection with a combination of low-dose chemotherapy than with a combination of BCL-2 inhibitor and Aza alone (P <0.05). No significant difference was observed in 1-year OS between Aza alone, Aza combined with BCL-2 inhibitor, and Aza combined with low-dose chemotherapy (P >0.05).
CONCLUSIONS
Both two induction regimens can be used in elderly AML patients who cannot tolerate intensive chemotherapy with similar overall effectiveness and safety. Aza combined with low-dose chemotherapy may result in increased ORR and an increased incidence of serious adverse reactions, and may not result in longer survival compared with Aza alone. Aza combined with BCL-2 inhibitor not only has similar effect in complete remission, objective response rate, and OS compared with Aza combined with low-dose chemotherapy, but also has higher safety.
Humans
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Aged
;
Azacitidine/therapeutic use*
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Prospective Studies
;
Treatment Outcome
;
Antineoplastic Combined Chemotherapy Protocols
;
Leukemia, Myeloid, Acute/etiology*
;
Proto-Oncogene Proteins c-bcl-2
5.Bendamustine combined with pomalidomide and dexamethasone in relapsed multiple myeloma with extramedullary disease: a multicenter study.
Hong Ying WU ; Xia ZHOU ; Xiao Xia CHU ; Xiu Zhi DENG ; Cheng Lu YUAN ; Xue Hong RAN ; Guo Qiang LIU ; Chuan Bo FAN ; Hong Yuan HAO ; Yu Ping ZHONG
Chinese Journal of Hematology 2023;44(8):667-671
Objective: To evaluate the efficacy and safety of bendamustine combined with pomalidomide and dexamethasone (BPD regimen) in the treatment of relapsed multiple myeloma (MM) with extramedullary disease. Methods: This open, single-arm, multicenter prospective cohort study included 30 relapsed MM patients with extramedullary disease diagnosed in seven hospitals including Qingdao Municipal Hospital. The patients were treated with BPD regimen from February 2021 to November 2022. This study analyzed the efficacy and adverse reactions of the BPD regimen. Results: The median age of the 30 patients was 62 (47-72) years, of which 18 (60% ) had first-time recurrence. The overall response rate (ORR) of the 18 patients with first-time recurrence was 100%, of which three (16.7% ) achieved complete remission, 10 (55.5% ) achieved very good partial remission (VGPR), and five (27.8% ) achieved partial remission (PR). The ORR of 12 patients with recurrence after second-line or above treatment was 50%, including zero patients with ≥VGPR and six patients (50% ) with PR. Three cases (25% ) had stable disease, and three cases (25% ) had disease progression. The one-year progression free survival rate of all patients was 65.2% (95% CI 37.2% -83.1% ), and the 1-year overall survival rate was 90.0% (95% CI 76.2% -95.4% ). The common grade 3-4 hematology adverse reactions included two cases (6.7% ) of neutropenia and one case (3.3% ) of thrombocytopenia. The overall adverse reactions are controllable. Conclusions: The BPD regimen has good efficacy and tolerance in relapsed MM patients with extramedullary disease.
Humans
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Middle Aged
;
Aged
;
Multiple Myeloma/drug therapy*
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Bendamustine Hydrochloride/therapeutic use*
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Prospective Studies
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Dexamethasone/therapeutic use*
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Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
6.Nature-effect transformation mechanism of mulberry leaves and silkworm droppings based on chemical composition analysis.
Ai-Ping DENG ; Yue ZHANG ; Yi-Han WANG ; Jia-Chen ZHAO ; Jin-Xiu QIAN ; Li-Ping KANG ; Tie-Gui NAN ; Zhi-Lai ZHAN
China Journal of Chinese Materia Medica 2023;48(8):2160-2185
Starting with the relationship between mulberry leaves and silkworm droppings as food and metabolites, this study systematically compared the chemical components, screened out differential components, and quantitatively analyzed the main differential components based on ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry(UPLC-Q-TOF-MS) and UPLC-Q-TRAP-MS combined with principal component analysis(PCA) and orthogonal partial least squares-discriminant analysis(OPLS-DA). Moreover, the in vitro enzymatic transformation of the representative differential components was studied. The results showed that(1) 95 components were identified from mulberry leaves and silkworm droppings, among which 27 components only exist in mulberry leaves and 8 components in silkworm droppings. The main differential components were flavonoid glycosides and chlorogenic acids.(2) Nineteen components with significant difference were quantitatively analyzed, and the components with significant differences and high content were neochlorogenic acid, chlorogenic acid, and rutin.(3) The crude protease in the mid-gut of silkworm significantly metabolized neochlorogenic acid and chlorogenic acid, which may be an important reason for the efficacy change in mulberry leaves and silkworm droppings. This study lays a scientific foundation for the development, utilization, and quality control of mulberry leaves and silkworm droppings. It provides references for clarifying the possible material basis and mechanism of the pungent-cool and dispersing nature of mulberry leaves transforming into the pungent-warm and dampness-resolving nature of silkworm droppings, and offers a new idea for the study of nature-effect transformation mechanism of traditional Chinese medicine.
Animals
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Bombyx
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Morus/chemistry*
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Chlorogenic Acid/analysis*
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Gas Chromatography-Mass Spectrometry
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Chromatography, High Pressure Liquid/methods*
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Plant Leaves/chemistry*
7.Relationship between parental reproductive age and the risk of overweight and obesity in offspring.
Rui DENG ; Ke LOU ; Si Liang ZHOU ; Xing Xiu LI ; Zhi Yong ZOU ; Ying Hua MA ; Jun MA ; Bin DONG
Chinese Journal of Preventive Medicine 2022;56(5):583-589
Objective: To explore the role of parental reproductive age on the risk of overweight and obesity in offspring. Methods: The participants were derived from physical examination data of students aged 6-18 years in seven provinces in China, and questionnaire survey was used to collect demographic characteristics and lifestyle information of the students and their parents. A total of 41 567 children with complete data were included. According to the restricted cubic spline curve, maternal reproductive age was divided into three categories, 14-23, 24-28, and 29-38 years, and paternal reproductive age was divided into 14-23, 24-30, and 31-42 years. Multivariate logistic regression model was used to analyze the association between parental reproductive age and parental nutritional status and the risk of overweight and obesity in offspring. Results: The mean age of 41 567 children was (10.6±3.2) years, and the mean paternal and maternal age were (27.9±4.4) years and (25.8±4.0) years, respectively. The detection rate of overweight and obesity was 23.4%. After adjusting factors of children diet and behaviors, the OR(95%CI)of offspring overweight and obesity in groups of fathers aged 24-30 years and mothers aged 24-28 years was 1.11 (1.04-1.18) and 1.16 (1.08-1.24), respectively. When none parents were overweight and obese, the difference of obesity risk was not statistically significant. When both parents were overweight and obese, the OR(95%CI)of offspring overweight and obesity in groups of fathers aged 24-30 years and mothers aged 14-28 years old was 1.27 (1.00-1.62) and 1.33 (1.07-1.65) respectively. Conclusion: Parental reproductive age and parental overweight and obesity status may both increase the risk of overweight and obesity in offspring, with a significant interaction effect.
Adolescent
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Adult
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Child
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Fathers
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Female
;
Humans
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Male
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Mothers
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Obesity/epidemiology*
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Overweight/epidemiology*
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Risk Factors
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Young Adult
8.Effect and Mechanism of "Liver-Soothing and Spleen-Invigorating" Therapies Against Liver Injury in Rats: An Exploration Based on TGR5 and Intestinal Mucosal Barrier Function
Wei-li WEI ; Yi-ning GAO ; Xing-hua SHI ; Zhi-li ZHENG ; Qian-jun KANG ; Xiu-lan DENG
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(1):131-140
ObjectiveTo explore the effects of different treatment methods of "soothing liver, invigorating spleen, soothing liver and invigorating spleen, soothing liver first and then soothing liver and invigorating spleen, as well as invigorating spleen first and then soothing liver and invigorating spleen" on liver depression combined with liver injury in rats and their action mechanisms. MethodA six-week rat model of liver depression combined with liver injury was established by restraint stress and subcutaneous injection of carbon tetrachloride (CCl4, 5.89 g·kg-1, once every three days). At the same time, the drugs were given by gavage. Forty-eight male SD rats of clean grade were randomly divided into eight groups, namely the normal group, model group, bicyclol (0.2 g·kg-1) group, Sinisan (4.32 g·kg-1) group, Liu Junzitang (9.26 g·kg-1) group, Chaishao Liu Junzitang A (Chai A, soothing liver and invigorating spleen,13.57 g·kg-1) group, Chaishao Liu Junzitang B (Chai B, soothing liver first and then soothing liver and invigorating spleen, 13.57 g·kg-1) group, and Chaishao Liu Junzitang C (Chai C, invigorating spleen first and then soothing liver and invigorating spleen, 13.57 g·kg-1) group, with six rats in each group. The pathological changes in liver and colon tissues of each group were observed under light microscope and electron microscope. The serum biochemical indexes of the liver were detected using an automatic biochemical analyzer. The relative mRNA expression levels of Takeda G protein-coupled receptor 5 (TGR5) and intestinal mucosal zona occluden-1 (ZO-1), Occludin, and Claudin-1 in the liver and colon were detected by reverse-transcription polymerase chain reaction (RT-PCR). The positive expression rate of proliferating cell nuclear antigen (PCNA) in the colon was detected by immunohistochemistry. ResultCompared with normal group, the model group exhibited significantly elevated serum alkaline phosphatase (ALP), alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBIL), and direct bilirubin (DBIL) (P<0.01), lowered TGR5 mRNA expression in liver tissue, up-regulated TGR5 mRNA expression in the colon tissue (P<0.05,P<0.01), and down-regulated ZO-1, Occludin, and tight junction protein-1 (Claudin-1) mRNA expression and PCNA in the colon tissue (P<0.01). Compared with the model group, bicyclol and Chai C remarkably decreased the levels of serum ALP, ALT, AST, TBIL, and DBIL (P<0.05,P<0.01), while Liu Junzitang, Chai A, Chai B, and Chai C significantly up-regulated the TGR5 mRNA expression in the liver and down-regulated its expression in the colon (P<0.01). Bicyclol, Chai A, Chai B, and Chai C enhanced the ZO-1 and Claudin-1 mRNA expression in the colon (P<0.05,P<0.01). Bicyclol, Sinisan, and Chai C increased PCNA expression (P<0.01). The comparison with the Chai C group showed that the TGR5 mRNA expression in the liver and ZO-1 mRNA expression in the colon of the bicyclol and Sinisan groups were lower, whereas the TGR5 mRNA expression in the colon was higher (P<0.01). However, the PCNA expression in the colon of the Liu Junzitang and Chai B groups declined significantly (P<0.05). ConclusionIn the presence of liver injury, invigorating spleen first helps to relieve the liver injury, and the efficacy of "spleen-invigorating" therapy in increasing the intestinal mucosal tight junction proteins and improving the gastrointestinal function is related to its activation of TGR5 to improve the intestinal mucosal barrier function, promote the renewal of intestinal stem cells, and drive the regeneration after injury.
9.Research Advance in Mechanism of Cisplatin Toxic Injury and Its Prevention and Treatment by Traditional Chinese Medicine
Xiao YAN ; Yi DENG ; Jun MA ; Peng-jie LI ; Zhi-jun YANG ; Xiu-juan YANG ; Yan ZHOU
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(5):233-242
Cisplatin, as one of the commonly used broad-spectrum anti-tumor drugs in clinical practice, is used to treat testicular cancer, ovarian cancer, head and neck cancer, bladder cancer, lung cancer, cervical cancer and other solid cancers. It has obvious curative effect but strong toxic and side effect, and is easy to cause great damage to the body. The toxic reaction may involve serious toxic damages to different organs, and induce nephrotoxicity, hepatotoxicity, ototoxicity, cardiotoxicity, neurotoxicity and other toxicity. Animal experiments have shown that the toxic damage induced by cisplatin is the result of many factors in a time-and dose-dependent manner. In the course of clinical use, the therapeutic dose of cisplatin is also greatly limited due to toxic damage, which seriously affects the quality of life in patients. Therefore, it is the main research direction to find a suitable treatment plan or to use drugs in combination with cisplatin to reduce toxicity and increase efficiency. With the increasing clinical participation of traditional Chinese medicine(TCM), TCM has shown its unique advantages in treating diseases, and can effectively reduce the cisplatin chemotherapy-induced toxic reaction by improving the oxidative stress state of the body, inhibiting normal apoptosis and inflammatory injury, activating autophagy, regulating the abnormal expression of drug transporters, etc. In this paper, the mechanism of cisplatin-induced toxic damage to various organs and the mechanism of TCM in prevention and treatment of cisplatin-induced toxic damage were summarized in detail, including the dose and mechanism of cisplatin-induced toxic damage to different organs, the effective treatment dose, combined medication mode and prevention and treatment mechanism of combined application of TCM and cisplatin, in order to provide a basis for rational application and clinical medication of TCM combined with chemotherapy drugs such as cisplatin.
10.Expression Level of MiR-146a in Acute Myeloid Leukemia Patients and Its Clinical Significance.
Yi-Li WANG ; Xiu-Zhi DENG ; Chun-Jing TANG ; Xiao-Yi WANG ; Jie YU
Journal of Experimental Hematology 2020;28(4):1171-1176
OBJECTIVE:
To detect the expression of miR-146a in patients with AML, and to evaluate the relationship between miR-146a expression level and clinical characteristics, treatment response, EFS and OS.
METHODS:
154 patients with newly diagnosed AML were enrolled in AML group, 50 controls (patients with thrombocytopenic purpura or voluntary donor of bone marrow) were enrolled in control group. The miR-146a expression levels in bone marrow mononuclear cells was detected by RT-PCR between 2 group. AML patients were treated with chemotherapeutic drugs, and their clinical response and survivals were assessed.
RESULTS:
The expression level of MiR-146a in AML group was significantly lower than that in control group. The ROC showed that miR-146a could distinguish the patients in AML and control group better (area under curve 0.819 (95%CI: 0.761-0.877). Meanwhile, the proportion of good and moderate good prognosis (P<0.001), proportion of WBC count ≤15.2×10/L (P<0.05), CR rate (P<0.05), EFS (P<0.01) and OS (P<0.01) in patients with high miR-146a expression were higher than those in patients with low miR-146a expression. Cox's model showed that miR-146a expression level positively realated with incressed EFS and OS.
CONCLUSION
MiR-146a is downregulated in AML patients, which might be served as a biomarker for predicting risk and prognosis of AML patients.
Bone Marrow
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Humans
;
Leukemia, Myeloid, Acute
;
MicroRNAs
;
Prognosis

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