The potential targets and mechanisms of modified Baihe dihuang decoction applied in post-stroke depression / 中国药房

OBJECTIVE To explore the potential targets and mechanisms of the modified Baihe dihuang decoction （MBD/ BDD） applied in post-stroke depression （PSD）. METHODS Network pharmacology was used to mine the potential targets and key pathways of MBD/BDD in the treatment of PSD. PSD model rats were induced by focal cerebral ischemia surgery combined with chronic unforeseen mild stress， and then were randomly divided into PSD model group， MBD/BDD group （12.6 g/kg， by raw drug）， and fluoxetine hydrochloride （FLX） group （positive control， 2.3 mg/kg）； a blank control group was also set up， with 8 rats in each group. Each administration group was given a corresponding medication solution by gavage once a day for 21 consecutive days. The intervention effect of MBD/BDD on depression-like symptoms in model rats was evaluated by open field and forced swimming tests. The brain tissues of rats in each group were dissected and total RNA was extracted for transcriptome sequencing and bioinformatics analysis. The mRNA and protein expressions of genes with significant changes and common neurotrophic factors were verified based on the above results. RESULTS A total of 131 MBD/BDD antidepressant-related target genes were obtained （such as IL1B and AKT1， etc.）， which were closely related to neural active ligand-receptor interactions and cyclic adenosine monophosphate signaling pathway. MBD/BDD could significantly prolong or increase the total time spent and distance traveled in the central grid of qiangzhe@cqtcm.edu.cn PSD model rats， and significantly shorten the cumulative immobility time （P＜0.05）. After treatment with MBD/BDD， the number of genes that changed in rat brain tissue was much higher than that in the FLX group， and there were significant differences in gene profiles among the PSD model group， MBD/BDD group， and FLX group. There were 1 351 differentially expressed genes （DEGs） between the MBD/BDD group and the PSD model group， of which 178 were significantly down-regulated and 1 173 were significantly up-regulated （P＜0.05）. Above 1 351 DEGs were involved in neuronal differentiation， chemical synaptic transmission regulation. They were significantly enriched in axonal guidance， cholinergic synapses and neuroactive ligand-receptor interactions. The top 30 genes in terms of up-regulation in the brain tissue of rats of MBD/BDD group were all associated with neuronal proliferation， development， differentiation， and migration. After MBD/BDD intervention， the expressions of Fezf2， Arx， Ostn， Nrgn genes， brain-derived neurotrophic factor and tyrosine kinase receptor B protein in brain tissue of rats were significantly increased （P＜0.05）. CONCLUSIONS The anti-PSD effect of MBD/BDD may be related to the up-regulation of the expression of genes related to neuronal proliferation， development， differentiation and migration， as well as the promotion of neural structural and functional repair.

Case management of a patient with gingival cancer who took the obturator prosthesis combined with orofacial myofunctional therapy to promote the rehabilitation of oral and maxillofacial function / 中国实用护理杂志

Objective:To summarize the case management of promoting the rehabilitation of oral and maxillofacial function of a patient with gingival cancer.Methods:The patient took the obturator prosthesis and orofacial myofunctional therapy to promote the rehabilitation of oral and maxillofacial function. The key points of nursing included: nursing of obturator prosthesis, orofacial myofunctional therapy, psychological nursing and evaluation of oral and maxillofacial function rehabilitation.Results:after one year of case management, the total score of the Chinese version of the obturator functioning scale was 18 points, the mouth opening was 4cm, and the speech distinctness was 98%. The quality of life of the patient was good.Conclusions:When the obturator prosthesis and orofacial myofunctional therapy are taken, all-round cooperation of the medical staff of different specialties from the perioperative period to the discharge follow-up should be strengthened in order to promote the rehabilitation of oral and maxillofacial function.

Application of high-frequency ultrasound and shear wave elastography in preoperative evaluation of basal cell carcinoma / 中华皮肤科杂志

Objective:To investigate the value of high-frequency ultrasound and shear wave elastography in preoperative evaluation of basal cell carcinoma (BCC) .Methods:A total of 95 patients with histopathologically confirmed cutaneous BCC were enrolled from Department of Dermatology, Hospital of Traditional Chinese Medicine of Zhongshan from January 2017 to December 2020, all of whom had underwent preoperative conventional ultrasonography and shear wave elastography. Conventional ultrasonography parametres including the maximum diameter, maximum infiltration depth, maximum blood flow velocity and resistance index were recorded, so were shear wave elastography parametres including the average Young′s modulus (Eave) , Young′s modulus standard deviation (Esd) and average Young′s modulus ratio (Eratio) . All the patients were divided into high- and low-risk BCC groups according to pathologic subtypes. Paired t-test was used to compare conventional ultrasonography and shear wave elastography findings between the 2 groups. Results:There were 15 cases in the high-risk BCC group and 80 cases in the low-risk BCC group. Compared with the low-risk BCC group, the high-risk BCC group showed significantly increased maximum depth of tumor infiltration (8.5 ± 4.6 mm vs. 4.5 ± 1.6 mm, t = 6.150, P < 0.001) , Eave (32.7 ± 11.2 kPa vs. 20.6 ± 5.1 kPa, t = 4.065, P = 0.001) and Esd (7.0 ± 4.1 kPa vs. 4.2 ± 2.1 kPa, t = 2.632, P = 0.018) , while there were no significant differences in the other measurement data between the two groups (all P > 0.05) . The areas under the receiver operating characteristic curves of the maximum infiltration depth, Eave and Esd for the diagnosis of high-risk BCC were 0.775, 0.909 and 0.822 respectively, and Eave showed the best diagnostic performance. Using 25.7 kPa as the cut-off value, the sensitivity and specificity of Eave were 86.7% and 85.0% for the diagnosis of high-risk BCC, respectively. Conclusion:High-frequency ultrasound and shear wave elastography can facilitate differential diagnosis between high- and low-risk BCC.

Chirality Self-assembling peptide for rats endometrial regeneration model / 生物工程学报

Here we investigate the physical and chemical properties of chiral self-assembling peptides and the role of uterine trauma regeneration. The circular dichroism was used to analyze secondary structure of chiral self-assembled peptide, and Congo red staining was used to observe the macroscopic process of peptide self-assembling. Erythrocyte lysis assay was used to examine the cleavage of peptide on cell membrane. The nanofiber scaffolds self-assembled by Chiral self-assembling peptides were used as the three-dimensional culture material to observe the growth effect of Hela cell. CCK-8 (cell counting kit-8) was used to study cell viability level between 2D (2-dimensional) and 3D (3-dimensional) culture environment. Rats endometrium curettage model was founded to evaluate the changes by immunohistochemistry staining and and HE staining. The secondary structure of chiral self-assembling peptides was stable β-sheet, and peptide could form dense membrane structure after 24 hours self-assembling cultured in salt ions. There was no harmful for the cell membrane of the peptide before and after self-assembling. Animal experiments show that chiral self-assembling peptide can significantly reduce the inflammatory response, promote the production of neovascularization, and accelerate the repair process. Chiral self-assembling peptide, as a new type of scaffold material, can construct a three-dimensional cell culture environment and used to repair uterine trauma.

Authorization, translation, back translation and language modification of the Chinese version of the obturator functioning scale / 中华口腔医学杂志

Objective@#To cross-cultural adapt the English version of obturator functioning scale (OFS) to form a simplified Chinese version, to preliminarily verify its reliability and validity in clinic, and to provide an effective tool for evaluating the oral function and quality of life of patients with palatal defect and restored with obturators in China.@*Methods@#The English version of the OFS was taken for forward translation, synthesis, back-translation, and reviewed by expert committee to develop a pre-testing simplified Chinese version. This scale contained demographic data, basic information of diseases, eating problems dimensions (3 items), speech problems dimensions (5 items), and other problems dimensions (7 items). From December, 2016 to December, 2018, forty-two patients who were treated in the Department of Prosthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University with palatal defect and restored with obturators were evaluated with OFS. Among them, there were 26 males, and 21-84 years old, and 16 females, who were 24-80 years old.The reliability and validity of the data were examined and analyzed.@*Results@#The results showed that Cronbach′s α coefficients of the overall scale and the three dimensions (eating problems, speech problems, and other problems) were 0.926, 0.938, 0.930, and 0.935, respectively. The internal consistency of the questionnaire was very good. The Spearman coefficients between each single dimension and the total score were 0.677, 0.792, and 0.860, respectively, suggesting that the scale convergence was good. The content validity index of 15 items was 0.905, indicating that the content validity was very good.@*Conclusions@#The Chinese version of the OFS is exhibiting high reliability and validity, providing an effective evaluation tool of oral function and quality of life for Chinese patients with obturator prostheses to restore palate defects.

Effect of baicalein and quercetin on enzymatic resistance of dentin collagen / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To investigate the effect of baicalein and quercetin on the enzymatic resistance of dentin matrix collagen.</p><p><b>METHODS</b>Baicalein, quercetin and proanthocyanidin were dissolved in 20% dimethyl sulfoxide (DMSO) ethanol and prepared into pretreatment agents with a concentration of 50 g/L. Demineralized dentin specimens were prepared and immersed in pretreatment agents at 37 °C for 24 h, then they were digested in solution containing type?collagenase. The pretreatment agents of blank control group and negative control group were 20% DMSO ethanol, blank control group were digested in solution without collagenase. The ultimate tensile strength (UTS) and the hydroxyproline content of enzymolysis liquid in each group were measured respectively after collagenase digestion for 24 h, the dentin collagen morphology were observed under a field emission scanning electron microscopic (FE-SEM) after collagenase digestion for 12 h.</p><p><b>RESULTS</b>After collagenase digestion for 24 h, the baicalein group had the highest UTS [(16.00±1.31) MPa], followed by proanthocyanidin group [(12.64±0.91) MPa], blank control group [(7.84±1.18) MPa], quercetin group [(3.20±1.07) MPa], and negative control group (0 MPa). Significant differences were detected among the UTS in each two group (P < 0.01). The hydroxyproline content in blank control group was the lowest [(0.40 ± 0.16) mg/L], followed by baicalein group[(2.95 ± 0.18) mg/L], proanthocyanidin group [(4.78±0.38) mg/L], quercetin group[(28.22±1.53) mg/L], and negative control group [(34.39±0.39) mg/L]. There were significant differences among the hydroxyproline contents in each group (P < 0.01). After collagenase digestion for 12 h, intact collagen network could be seen in blank control group under a FE-SEM. Collagen network in negative control group suffered nearly complete destruction and collapsed. In quercetin group, most of collagen collapsed. In proanthocyanidin group, a small portion of collagen destruction and collapse could be seen. In baicalein group, collagen network remained intact.</p><p><b>CONCLUSIONS</b>The use of baicalein and quercetin could improve enzymatic resistance of dentin matrix collagen at a concentration of 50 g/L. The effect of baicalein was better than that of proanthocyanidin while the effect of quercetin was weaker than that of proanthocyanidin.</p>

Combination of kidney transplantation with hematopoietic stem cell infusion / 中华全科医师杂志

Ninety six female patients with chronic renal failure were randomly allocated into combination group (n =48) and control group (n =48).In combination group patients received both kidney transplantation and hematopoietic stem cell infusion,in control group patients underwent kidney transplantation only.The results showed that chronic rejection in the combination group was lower than that in the control group [2％(1/48)vs.17％ (8/48),P＜0.05)].The 1-,3-,5-and 10 y-survival rates of kidney in the combination group were 98％ (47/48),94％ (45/48),83％ (34/41) and 9/17,respectively,those in control group were 98％ (47/48),90％ (43/48),76％ (31/41) and 7/17,respectively.Infusion of donor hematopoietic stem cells can augment chimerism in early postoperative period and significantly reduce the rate of graft rejection,which is beneficial for the quality of life of the recipients.

Autologous hematopoietic stem cell transplantation for systemic lupus erythematosus 10-year follow-up / 中华风湿病学杂志

Objective To investigate the long-term efficacy of autologous stem cell transplantation for systemic lupus erythematosus (SLE). Methods Long-term follow up of 48 SLE patients with autologous stem cell transplantation were studied. All patients were followed up for 10 years. Among the patients, 24 cases were treated with purified CD34+ cells transplantation and 24 cases were treated with non-CD34+ cell transplantation. Comparison between groups was performed by x2 test. Results Among 5 dead patients, 4 died of transplantation related complications including 3 cases treated with CD34+ transplantion. The survival rate of those patients with more than 10 years duration of lupus was 90%(43/48). Among 43 patients, 7 had disease flare, 6 were treated with non-CD34+ cell transplantation. Eight patients went to college, 26 returned to normal life and 4 of them had children. Conclusion The long-term effect of SLE treated with autologous hematopoietic stem cell transplantation and anti-thymocyte globulin (ATG) is good. The recurrence of CD34+ transplant patients is lower than those treated with non-CD34+ transplantation. The quality of life in SLE patients treated with transplantation is better than those treated with conventional therapy.

Induction of immune tolerance using kidney-bone marrow transplantation: Does it promote chimerism formation? / 中国组织工程研究

BACKGROUND: Infusion of hemopoietic stem cell from donors can promote the chimeric formation and induce specific immunologic tolerance in the allograft recipients. However, the pretreatment for cell transplantation has great toxicity to recipients. So immunosuppressant combined bone marrow infusion is introduced to anti graft versus host reaction. OBJECTIVE: Based on microchimerism, to study the security and associativity of chimera formation induced by kidney-bone marrow transplantation and immunologic tolerance.DESIGN, TIME AND SETTING: The contrast observation was performed at the department of urinary surgery, The Third People's Hospital of Zhengzhou City from January 1998 to December 2005.PARTICIPANTS: According to ABO/Rh blood type and HLA matching, 96 female patients with chronic renal failure and waiting for kidney transplantation were divided into 2 groups, In the combination group, patients received kidney combined bone marrow transplantation; the other uremia patients received the other kidney of cadavers were served as control group. The donors were 48 healthy males. METHODS: Bone marrow of donors was collected simultaneously with kidney obtain and preserved with cryoprotectant at -198 ℃ in nitrogen canister. After kidney transplantation, large dose of anti-human lymphocyte immune globulin were used for 2 weeks, then (0.9-2.5)×10~8/kg mononuclearcell was reinfused. PCR-SRY was used to identify donor derived cell-chimerism. Lymphocyte subgroup of recipients was determined by blood test; and interleukin 10 was measured by enzyme linked immunosorbent assay; in addition, the mass concentration of tumor necrosis factor α and tumor necrosis factor β was detected. MAIN OUTCOME MEASURES: Chimerism, lymphocyte subsets and cytokines were detected at various time points following transplantation. Simultaneously, the transplantation results and complication status of recipients were observed. RESULTS: The positive rate of chimera in the combination group was greater than that of the control group (P < 0.05). The 3-year follow-up showed that incidence differences of acute rejection between recipients with positive chimera and recipients with negative chimera had significance (13%, 35%, P < 0.05). There was no graft versus host disease occurred in the combination group. CONCLUSION: Kidney-bone marrow transplantation can augment chimerism in early postoperative period, and significantly reduce the rate of acute rejection, which is safe and beneficia1to induce specific immunologic tolerance in the renal allograft recipients.