1.Amelioration of depressive behaviours in CUMS rats via PI3K/AKT pathway and HPA axis by Anshen Jieyu decoction
Hongyue YU ; Runsheng CHEN ; Leping WANG ; Jiaying WANG ; Zehao ZHANG ; Zhen LI ; Zhuxin SUI
Chinese Journal of Neuroanatomy 2025;41(3):314-320
Objective:To explore the effects of anshen jieyu decoction on hippocampal morphology and regulation of PI3K/AKT signalling pathway with hypothalamic-pituitary-adrenal axis expression in CUMS depressed rats.Methods:Rats were divided into a control group(Control),CUMS model group(CUMS),and ASJYD treatment group(CUMS+ASJYD).Rats in the CUMS and CUMS+ASJYD groups were exposed to 10 different chronic stressors to induce depressive-like behaviors.After modeling,the CUMS+ASJYD group received ASJYD via gavage.Depressive-like behaviors were assessed using the sucrose preference test and open field test.Serum levels of adrenocorticotropic hor-mone(ACTH)and corticosterone(CORT)were measured by ELISA.Hippocampal neuronal morphological changes were observed via Nissl staining,mitochondrial ultrastructure was examined using transmission electron microscopy,and hippocampal PI3K and AKT protein phosphorylation levels were detected by Western blot.Results:Compared with the Control group,the CUMS group showed significantly reduced sucrose consumption,preference rate,total travel distance in the open field,and central zone activity time(P<0.01).Serum ACTH and CORT levels were elevated(P<0.01),with disorganized hippocampal cell arrangement,reduced cell count,mitochondrial swelling,cristae blurring/rupture observed under electron microscopy,and decreased phosphorylation levels of PI3 K and AKT proteins(P<0.01).After ASJYD treatment,the CUMS+ASJYD group exhibited significant improvements in sucrose consumption,preference rate,locomotor activity,and central zone exploration(P<0.01),accompanied by reduced ACTH/CORT expression,alleviated hippocampal pathology,restored mitochondrial integrity with clear cristae,and increased PI3K/AKT phosphorylation(P<0.01).Conclusion:Anshen Jieyu decoction significantly improved the depression-like be-haviour of CUMS rats,which may be achieved by down-regulating the hyperactive hypothalamic-pituitary-adrenal axis,regulating the expression of PI3K/AKT signaling pathway,and ameliorating the damage to hippocampal neurons and mi-tochondria.
2.Changes of Macrophages and Hemophagocytes in Bone Marrow of Patients with Multiple Myeloma before and after Chemotherapy and Their Correlation with Clinical Prognostic Value
Ting WANG ; Bingyun ZHANG ; Xiuhui CHEN ; Hongyue XU ; Mingli SUN ; Yingchao LIU ; Xueyong ZHANG
Journal of Modern Laboratory Medicine 2025;40(3):150-157,163
Objective To investigate the changes of macrophages and hemophagocytes in bone marrow smears of patients with multiple myeloma(MM)before and after chemotherapy and their correlation with clinical prognostic value.Methods A total of 300 MM patients treated in Liaocheng Second People's Hospital Affiliated to Shandong First Medical University from June 2018 to June 2023 were selected as the study objects.All patients received at least 3 courses of chemotherapy and were divided into the remission group(n=214)and the non-remission group(n=86)according to the clinical effect.Immunoglobulin(Ig)A,IgG,CD3+,CD4+,CD8+,interleukin(IL-2),IL-4,IL-6,IL-17,tumor necrosis factor(TNF)-α,transforming growth factor(TGF)-β,macrophages and hemophagocytes were detected in the two groups and compared between the two groups.COX regression was used to analyze the relationship between immunological indexes and non-remission of chemotherapy.The relationship between macrophages and hemophagocytes and non-remission of chemotherapy was analyzed by restricted cubic spline.The multiplicative interaction of macrophages and hemophagocytes on non-remission of chemotherapy was analyzed using an unconditioned Logistic regression model,and the additive interaction was analyzed using the interaction calculation table.Receiver operating characteristic(ROC)curve analysis of macrophages and hemophagocytes alone or in combination to determine the value of chemotherapy non-remission.Results The overall response rate(ORR)and non-response rate(NRR)of MM patients were 71.33%and 28.67%respectively.Compared with before treatment,IgA,IgG,CD8+,IL-6,IL-17,TNF-α,TGF-β,macrophages and hemophagocytes were significantly decreased in both groups after treatment(tslow=9.252~61.177,tnot slow=4.057~35.797).CD3+,CD4+,CD4+/CD8+,IL-2 and IL-4 were significantly increased(tslow=9.706~33.940,tnot slow=4.227~16.167),and the differences were statistically significant(all P<0.05).After treatment,compared with the remission group,IgA,IgG,CD8+,IL-6,IL-17,TNF-α,TGF-β,macrophages and hemophagocytes in the non-remission group were significantly higher than those in remission group(t=3.362~30.028),CD3+,CD4+,CD4+/CD8+,IL-2 and IL-4 were significantly lower than those in remission group(t=3.736~13.998).and the differences were statistically significant(all P<0.05).After adjusting the influence of other factors by COX regression,the trend test of macrophages and hemophagocytes was still statistically significant the trend test of macrophages and hemophagocytes was still statistically significant(P<0.05).Patients with≥5 macrophages/tablet and≥3 hemophagocytes/tablet had a significantly increased risk of non-remission from chemotherapy(P<0.05).There were additive(OR=6.157,95%CI:3.768~12.978)and multiplicative(OR=5.648,95%CI:1.035~17.492)interactions between macrophages and hemophagocytes in the non-remission of chemotherapy.Compared with the single judgment of macrophages and hemophagocytes,the combination of the two has the highest accuracy in determining chemotherapy non-remission(P<0.05).Conclusion Macrophages and hemophagocytic cells in MM patients after chemotherapy are significantly lower than those before chemotherapy,with≥5 macrophages/tablet and≥3 hemocyte phages/tablet,indicating that the risk of non-remission in patients with chemotherapy increased significantly,and the combination of the two can accurately judge the clinical efficacy.
3.Anti-inflammatory and anti-apoptotic effects and mechanism of total flavonoids of hawthorn leaves on rat intestinal epithelial cells
Kai WANG ; Pei LIU ; Kexin QI ; Jingyi WANG ; Chenlu SUN ; Danning SHI ; Hongyue CHEN ; Daoling HE ; Yan ZHU ; Ling GAN
Chinese Journal of Veterinary Science 2025;45(7):1450-1457
This study aims to investigate the anti-inflammatory and anti-apoptotic effects of total flavonoids of hawthorn leaves(TFHL)on lipopolysaccharide(LPS)-induced inflammatory injury in rat intestinal epithelial(IEC-6)cells,as well as the underlying mechanisms.An in vitro inflam-mation model was first established by treating IEC-6 cells with lipopolysaccharide(LPS).IEC-6 cells were then incubated with three concentrations of TFHL for 24 h prior to a further 24 h LPS treatment.RT-qPCR was used to quantify mRNA levels of the inflammatory genes COX-2 and iN-OS,while Western blotting was used to assess protein levels of the apoptotic markers Bax,cleaved Caspase-3,Bcl-2,and the JNK/p-JNK signaling pathway.Finally,cells were pretreated with TFHL and/or the JNK inhibitor SP600125 for 24 h before LPS exposure for 24 h,in order to evaluate the combined effects of TFHL and SP600125 on LPS-induced inflammatory cytokine expression and apoptotic protein levels in IEC-6 cells.The results showed that,compared with the LPS group,the mRNA level of COX-2 and iNOS in the 2.5,5.0,10.0 mg/L TFHL group and the Bax and Caspase-3 protein levels decreased significantly(P<0.01),and the Bcl-2 protein level was significantly higher(P<0.01),p-JNK protein level and p-JNK/JNK ratio decreased significantly(P<0.01);compared with the LPS group,the COX-2 and iNOS mRNA levels of the TFHL+LPS group de-creased significantly(P<0.01),Bax,and Caspase-3 protein levels decreased significantly(P<0.01),and the level of Bcl-2 protein increased significantly(P<0.05);compared with the LPS group,the COX-2 and iNOS mRNA levels of the TFHL+SP600125 group decreased significantly(P<0.01),Bax and Caspase-3 protein levels decreased significantly(P<0.01),and Bcl-2 protein level increased significantly(P<0.01).These findings indicate that TFHL exerts anti-inflammato-ry and anti-apoptotic effects in LPS-challenged IEC-6 cells by inhibiting the JNK signaling path-way.
4.Changes of Macrophages and Hemophagocytes in Bone Marrow of Patients with Multiple Myeloma before and after Chemotherapy and Their Correlation with Clinical Prognostic Value
Ting WANG ; Bingyun ZHANG ; Xiuhui CHEN ; Hongyue XU ; Mingli SUN ; Yingchao LIU ; Xueyong ZHANG
Journal of Modern Laboratory Medicine 2025;40(3):150-157,163
Objective To investigate the changes of macrophages and hemophagocytes in bone marrow smears of patients with multiple myeloma(MM)before and after chemotherapy and their correlation with clinical prognostic value.Methods A total of 300 MM patients treated in Liaocheng Second People's Hospital Affiliated to Shandong First Medical University from June 2018 to June 2023 were selected as the study objects.All patients received at least 3 courses of chemotherapy and were divided into the remission group(n=214)and the non-remission group(n=86)according to the clinical effect.Immunoglobulin(Ig)A,IgG,CD3+,CD4+,CD8+,interleukin(IL-2),IL-4,IL-6,IL-17,tumor necrosis factor(TNF)-α,transforming growth factor(TGF)-β,macrophages and hemophagocytes were detected in the two groups and compared between the two groups.COX regression was used to analyze the relationship between immunological indexes and non-remission of chemotherapy.The relationship between macrophages and hemophagocytes and non-remission of chemotherapy was analyzed by restricted cubic spline.The multiplicative interaction of macrophages and hemophagocytes on non-remission of chemotherapy was analyzed using an unconditioned Logistic regression model,and the additive interaction was analyzed using the interaction calculation table.Receiver operating characteristic(ROC)curve analysis of macrophages and hemophagocytes alone or in combination to determine the value of chemotherapy non-remission.Results The overall response rate(ORR)and non-response rate(NRR)of MM patients were 71.33%and 28.67%respectively.Compared with before treatment,IgA,IgG,CD8+,IL-6,IL-17,TNF-α,TGF-β,macrophages and hemophagocytes were significantly decreased in both groups after treatment(tslow=9.252~61.177,tnot slow=4.057~35.797).CD3+,CD4+,CD4+/CD8+,IL-2 and IL-4 were significantly increased(tslow=9.706~33.940,tnot slow=4.227~16.167),and the differences were statistically significant(all P<0.05).After treatment,compared with the remission group,IgA,IgG,CD8+,IL-6,IL-17,TNF-α,TGF-β,macrophages and hemophagocytes in the non-remission group were significantly higher than those in remission group(t=3.362~30.028),CD3+,CD4+,CD4+/CD8+,IL-2 and IL-4 were significantly lower than those in remission group(t=3.736~13.998).and the differences were statistically significant(all P<0.05).After adjusting the influence of other factors by COX regression,the trend test of macrophages and hemophagocytes was still statistically significant the trend test of macrophages and hemophagocytes was still statistically significant(P<0.05).Patients with≥5 macrophages/tablet and≥3 hemophagocytes/tablet had a significantly increased risk of non-remission from chemotherapy(P<0.05).There were additive(OR=6.157,95%CI:3.768~12.978)and multiplicative(OR=5.648,95%CI:1.035~17.492)interactions between macrophages and hemophagocytes in the non-remission of chemotherapy.Compared with the single judgment of macrophages and hemophagocytes,the combination of the two has the highest accuracy in determining chemotherapy non-remission(P<0.05).Conclusion Macrophages and hemophagocytic cells in MM patients after chemotherapy are significantly lower than those before chemotherapy,with≥5 macrophages/tablet and≥3 hemocyte phages/tablet,indicating that the risk of non-remission in patients with chemotherapy increased significantly,and the combination of the two can accurately judge the clinical efficacy.
5.Amelioration of depressive behaviours in CUMS rats via PI3K/AKT pathway and HPA axis by Anshen Jieyu decoction
Hongyue YU ; Runsheng CHEN ; Leping WANG ; Jiaying WANG ; Zehao ZHANG ; Zhen LI ; Zhuxin SUI
Chinese Journal of Neuroanatomy 2025;41(3):314-320
Objective:To explore the effects of anshen jieyu decoction on hippocampal morphology and regulation of PI3K/AKT signalling pathway with hypothalamic-pituitary-adrenal axis expression in CUMS depressed rats.Methods:Rats were divided into a control group(Control),CUMS model group(CUMS),and ASJYD treatment group(CUMS+ASJYD).Rats in the CUMS and CUMS+ASJYD groups were exposed to 10 different chronic stressors to induce depressive-like behaviors.After modeling,the CUMS+ASJYD group received ASJYD via gavage.Depressive-like behaviors were assessed using the sucrose preference test and open field test.Serum levels of adrenocorticotropic hor-mone(ACTH)and corticosterone(CORT)were measured by ELISA.Hippocampal neuronal morphological changes were observed via Nissl staining,mitochondrial ultrastructure was examined using transmission electron microscopy,and hippocampal PI3K and AKT protein phosphorylation levels were detected by Western blot.Results:Compared with the Control group,the CUMS group showed significantly reduced sucrose consumption,preference rate,total travel distance in the open field,and central zone activity time(P<0.01).Serum ACTH and CORT levels were elevated(P<0.01),with disorganized hippocampal cell arrangement,reduced cell count,mitochondrial swelling,cristae blurring/rupture observed under electron microscopy,and decreased phosphorylation levels of PI3 K and AKT proteins(P<0.01).After ASJYD treatment,the CUMS+ASJYD group exhibited significant improvements in sucrose consumption,preference rate,locomotor activity,and central zone exploration(P<0.01),accompanied by reduced ACTH/CORT expression,alleviated hippocampal pathology,restored mitochondrial integrity with clear cristae,and increased PI3K/AKT phosphorylation(P<0.01).Conclusion:Anshen Jieyu decoction significantly improved the depression-like be-haviour of CUMS rats,which may be achieved by down-regulating the hyperactive hypothalamic-pituitary-adrenal axis,regulating the expression of PI3K/AKT signaling pathway,and ameliorating the damage to hippocampal neurons and mi-tochondria.
6.Anti-inflammatory and anti-apoptotic effects and mechanism of total flavonoids of hawthorn leaves on rat intestinal epithelial cells
Kai WANG ; Pei LIU ; Kexin QI ; Jingyi WANG ; Chenlu SUN ; Danning SHI ; Hongyue CHEN ; Daoling HE ; Yan ZHU ; Ling GAN
Chinese Journal of Veterinary Science 2025;45(7):1450-1457
This study aims to investigate the anti-inflammatory and anti-apoptotic effects of total flavonoids of hawthorn leaves(TFHL)on lipopolysaccharide(LPS)-induced inflammatory injury in rat intestinal epithelial(IEC-6)cells,as well as the underlying mechanisms.An in vitro inflam-mation model was first established by treating IEC-6 cells with lipopolysaccharide(LPS).IEC-6 cells were then incubated with three concentrations of TFHL for 24 h prior to a further 24 h LPS treatment.RT-qPCR was used to quantify mRNA levels of the inflammatory genes COX-2 and iN-OS,while Western blotting was used to assess protein levels of the apoptotic markers Bax,cleaved Caspase-3,Bcl-2,and the JNK/p-JNK signaling pathway.Finally,cells were pretreated with TFHL and/or the JNK inhibitor SP600125 for 24 h before LPS exposure for 24 h,in order to evaluate the combined effects of TFHL and SP600125 on LPS-induced inflammatory cytokine expression and apoptotic protein levels in IEC-6 cells.The results showed that,compared with the LPS group,the mRNA level of COX-2 and iNOS in the 2.5,5.0,10.0 mg/L TFHL group and the Bax and Caspase-3 protein levels decreased significantly(P<0.01),and the Bcl-2 protein level was significantly higher(P<0.01),p-JNK protein level and p-JNK/JNK ratio decreased significantly(P<0.01);compared with the LPS group,the COX-2 and iNOS mRNA levels of the TFHL+LPS group de-creased significantly(P<0.01),Bax,and Caspase-3 protein levels decreased significantly(P<0.01),and the level of Bcl-2 protein increased significantly(P<0.05);compared with the LPS group,the COX-2 and iNOS mRNA levels of the TFHL+SP600125 group decreased significantly(P<0.01),Bax and Caspase-3 protein levels decreased significantly(P<0.01),and Bcl-2 protein level increased significantly(P<0.01).These findings indicate that TFHL exerts anti-inflammato-ry and anti-apoptotic effects in LPS-challenged IEC-6 cells by inhibiting the JNK signaling path-way.
7.Clinical and neurophysiological analysis of neuralgic amyotrophy
Mingxia ZHU ; Hongyue MA ; Xiuli LI ; Jingyu MOU ; Hongjing LIU ; Jing CHEN ; Guangju QI ; Xinhong FENG
Chinese Journal of Neurology 2024;57(12):1353-1361
Objective:To analyze the clinical characteristics and neurophysiological features of patients with neuralgic amyotrophy (NA) and explore their neurological function status.Methods:Clinical data and neurophysiological findings of 90 patients diagnosed with NA at Beijing Tsinghua Changgung Hospital from September 2016 to January 2024 were collected and their clinical phenotypes and neurophysiological characteristics were systematically summarized and analyzed.Results:Among the 90 patients, males accounted for 60.0% (54 cases) and females accounted for 40.0% (36 cases). The duration of the disease was 12 (3, 36) months (ranged from 1 week to 5 years). The onset age of the patients was 58 (30, 70) (21-87) years. Unilateral involvement was noted in 94.4% (85/90) of patients, exhibiting a left-to-right ratio of 1∶1.3, while only 5.6% (5/90) had bilateral involvement. The majority of patients demonstrated a monophasic clinical course with a recurrence rate of just 2.2% (2/90). The primary clinical manifestations included upper limb pain in 70.0% (63/90) of patients, which progressed to muscle weakness and atrophy within 1 day to 1 month, whereas 30.0% (27/90) of patients without significant pain symptoms. Lesions predominantly affected the upper trunk of the brachial plexus, which accounted for 64.4% (58/90) of patients. Distal nerve injuries in the upper limb were observed in 14.4% (13/90) of patients, with 6.7% (6/90) demonstrating isolated anterior interosseous nerve involvement and another 6.7% (6/90) exhibiting isolated posterior interosseous nerve involvement; 1 case had concurrent anterior and posterior interosseous nerve damage. Additionally, 1 case presented with bilateral phrenic nerve involvement, and another patient had isolated posterior tibial nerve injury. Electrophysiological evaluations of patients with NA revealed that axonal damage to motor nerve fibers was a hallmark feature of the condition. Among patients undergoing motor nerve conduction studies, 68.8% (55/80) exhibited decreased compound muscle action potential amplitude, and 31.3% (25/80) had prolonged latency. Sensory nerve conduction was normal in 60.0% (48/80) of patients, while abnormalities included prolonged latency in 15.0% (12/80), reduced amplitude in 12.5% (10/80), slowed conduction velocity in 8.8% (7/80), and absent waveforms in 3.8% (3/80) of patients. The rates of abnormal nerve conduction findings in motor nerves were the highest in the suprascapular nerve (70.6%, 36/51), followed by the axillary nerve (58.3%, 35/60), musculocutaneous nerve (50.7%, 35/69), long thoracic nerve (6/17), and both anterior and posterior interosseous nerves (7.5%, 6/80 each). In sensory nerves, abnormalities were predominantly noted in the lateral antebrachial cutaneous nerve (30.0%, 12/40). Needle electromyography demonstrated neurogenic damage, most frequently affecting the infraspinatus muscle (69.2%, 18/26), biceps brachii (68.1%, 49/72), and deltoid muscle (65.3%, 47/72). The positive rate of magnetic resonance neurography (MRN) for NA was 62.1% (41/66), among which 63.4% (26/41) showed localized swelling of the brachial plexus, 51.2% (21/41) exhibited T 2 hyperintensity, and 4.9% (2/41) demonstrated denervated changes in the muscles. The positive rate of ultrasound for NA was 71.1% (59/83), with 91.5% (54/59) showing nerve swelling and 8.5% (5/59) exhibiting hourglass constriction .Conclusions:NA is a peripheral neuropathy characterized by spontaneous pain, limb weakness, and (or) muscle atrophy primarily. Its clinical phenotype predominantly involves damage to the upper trunk of the brachial plexus, which can also manifest as isolated mononeuropathy. Neurophysiological findings most commonly reveal the neurogenic damage to the muscles innervated by the upper trunk of the brachial plexus, mainly characterized by the axonal damage to the motor nerves, and pure motor nerve damage may also be observed. MRN and neuroultrasound can assist in qualitative diagnosis.
8.Clinical analysis of benign anastomotic stenosis after colorectal cancer surgery
Wei ZHENG ; Shurong HUANG ; Yong' ; an FU ; Hongyue LIN ; Jinping CHEN
China Modern Doctor 2024;62(9):62-65
Objective To analyze the influencing factors and management of benign anastomotic stenosis in patients with colorectal cancer after concurrent prophylactic ileostomy.Methods The clinical data of 74 colorectal cancer patients undergoing preventive ileostomy admitted to Quanzhou First Hospital Affiliated to Fujian Medical University from April 2018 to June 2022 were selected,according to the presence or absence of anastomotic stenosis after surgery,patients were divided into anastomotic stenosis group and anastomotic normal group.The influencing factors of stenosis were analyzed using statistical methods,and the management methods for anastomotic stenosis were summarized.Results 15 cases of anastomotic stenosis occurred after surgery,with an incidence rate of 20.3%.Compared with anastomotic normal group,patients in anastomotic stenosis group had a higher proportion of preoperative radiation therapy,preoperative neoadjuvant chemotherapy,and a higher incidence of postoperative anastomotic leakage/pelvic infection,with statistical significance(P<0.05);Multivariate analysis suggests that preoperative radiotherapy,anastomotic leakage/pelvic infection are independent risk factors for anastomotic stenosis.Conclusion Patients with colorectal cancer who undergo preoperative radiotherapy,neoadjuvant chemotherapy,and postoperative anastomotic leakage/pelvic infection should pay attention to the occurrence of anastomotic stenosis after undergoing ileostomy;Postoperative anastomotic stenosis should be treated according to the characteristics of the stenosis.
9.Effect of Porcine Large Intestine-processed Dahuang (Radix et Rhizoma Rhei) on Defecation and Colon Pathological Changes in Constipation Model Mice
Xiaotian RAO ; Linjin HUANG ; Peisen ZHENG ; Bangyang CHEN ; Dianwei WU ; Maosheng HUANG ; Qiuming CHEN ; Dongjin HUANG ; Hongyue ZHAN ; Yinghua YAO ; Chao CHEN
Journal of Traditional Chinese Medicine 2023;64(18):1916-1921
ObjectiveTo investigate the effect of porcine large intestine-processed Dahuang (Radix et Rhizoma Rhei) on defecation in constipation model mice and the possible mechanism. MethodsFifty Kunming mice were randomized to blank group (n=10) and model group (n=40). Loperamide suspension at the dose of 8 mg/(kg·d) was given by gavage for four consecutive days to establish a model of constipation. The 24 successfully modeled mice were randomly divided into model group, processed Dahuang group, lactulose group, raw Dahuang group, with six mice in each group. Moreover, six randomly selected mice were chosen as control group. Since the fifth day, 8 mg/(kg·d) of loperamide suspension by gavage was given to the model group, processed Dahuang group, raw Dahuang group, and lactulose group; two hours later, the processed and raw Dahuang groups were administered with 0.6 g/(kg·d) of processed and raw Dahuang suspension, respectively, while the lactulose group was given 0.6 g/(kg·d) of latulose suspension, and the blank group and the model group were given 0.2 ml/10 g of distilled water by gavage, all for four days. The general condition, body weight after the last gavage, number of fecal particles within six hours, fecal wet weight, fecal water content ratio, intestinal propulsion rate and colonic histology changes by HE staining of each group were detected. ResultsThe body weight of the mice in the raw Dahuang group was significantly lighter than that in the other groups (P<0.05 or P<0.01). The number of fecal particles, fecal wet weight and intestinal propulsion rate of mice significantly decreased in the model group than in the blank group (P<0.05 or P<0.01). Compared to those in the model group, the number of fecal particles and fecal wet weight in the processed Dahuang group, lactulose group and raw Dahuang group significantly increased, and the fecal water content ratio in the raw Dahuang group increased as well (P<0.05 or P<0.01). Compared to those in the processed Dahuang group, the number of fecal particles and fecal wet weight in the raw Dahuang group decreased, while the fecal water content ratio increased (P<0.05 or P<0.01), and the fecal water content ratio in the lactulose group increased significantly (P<0.05). The intestinal propulsion rate in the processed Dahuang group was higher than that in the model group, lactulose group and raw Dahuang group (P<0.05 or P<0.01). Histopathological analysis showed that the colonic crypts and goblet cells in the blank group were normal and clear, and the colonic muscular layer was thicker. The colonic crypts of the mice in the model group were damaged, with reduced goblet cells to varying degrees and changed colonic muscularis. In the lactulose group and raw Dahuang group, part of the crypts were broken, and the goblet cells were damaged to varying degrees, while in the processed Dahuang group, still the colonic tissue structure of the mice was relatively clear, and the colonic crypts and goblet cells were relatively normal, with thickened muscular layer of the colon. ConclusionPorcine large intestine-processed Dahuang could improve defecation in constipation model mice, and reduce the drastic purgation function of raw Dahuang, for which the mechanism may be related to the protection of colon histopathological damage.
10.Honokiol alleviated neurodegeneration by reducing oxidative stress and improving mitochondrial function in mutant SOD1 cellular and mouse models of amyotrophic lateral sclerosis.
Yujun ZHOU ; Jingshu TANG ; Jiaqi LAN ; Yong ZHANG ; Hongyue WANG ; Qiuyu CHEN ; Yuying KANG ; Yang SUN ; Xinhong FENG ; Lei WU ; Hongtao JIN ; Shizhong CHEN ; Ying PENG
Acta Pharmaceutica Sinica B 2023;13(2):577-597
Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease affecting both upper and lower motor neurons (MNs) with large unmet medical needs. Multiple pathological mechanisms are considered to contribute to the progression of ALS, including neuronal oxidative stress and mitochondrial dysfunction. Honokiol (HNK) has been reported to exert therapeutic effects in several neurologic disease models including ischemia stroke, Alzheimer's disease and Parkinson's disease. Here we found that honokiol also exhibited protective effects in ALS disease models both in vitro and in vivo. Honokiol improved the viability of NSC-34 motor neuron-like cells that expressed the mutant G93A SOD1 proteins (SOD1-G93A cells for short). Mechanistical studies revealed that honokiol alleviated cellular oxidative stress by enhancing glutathione (GSH) synthesis and activating the nuclear factor erythroid 2-related factor 2 (NRF2)-antioxidant response element (ARE) pathway. Also, honokiol improved both mitochondrial function and morphology via fine-tuning mitochondrial dynamics in SOD1-G93A cells. Importantly, honokiol extended the lifespan of the SOD1-G93A transgenic mice and improved the motor function. The improvement of antioxidant capacity and mitochondrial function was further confirmed in the spinal cord and gastrocnemius muscle in mice. Overall, honokiol showed promising preclinical potential as a multiple target drug for ALS treatment.

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