ObjectiveTo explore the effects of the Tai Chi training on bone density， bone turnover markers， and heart rate variability for people with high-risk osteoporosis， and to provide evidence for the prevention of osteoporosis at early stage. MethodsSixty-six cases of people with high risk of osteoporosis were included， and they were divided into 33 cases each in the intervention group and the control group using the random number table method. The control group received osteoporosis health education three times a week， and the intervention group received Tai Chi training under the guidance of a trainer three times a week for 40 mins each time on the basis of the control group， and both groups were intervened for 12 weeks. Dual-energy X-ray absorptiometry was used to measure the bone density of L₁~L₄ vertebrae， bilateral femoral necks and bilateral total hips in the two groups before and after the intervention； enzyme-linked immunosorbent assay was used to determine bone turnover markers before and after the intervention， including pro-collagen type Ⅰ pro-amino-terminal prepropyl peptide （P1NP） and β-collagen type Ⅰ cross-linking carboxy-terminal peptide （β-CTX）. Seven cases with good compliance in the intervention group were selected. After wearing the heart rate sensor， they successively performed Tai Chi training and walking activities recommended by the guideline for 20 mins each， and the heart rate variability （HRV） during exercise was collected， including time-domain indexes such as standard deviation of normal sinus intervals （SDNN）， root-mean-square of the difference between adjacent RR intervals （RMSSD）， frequency-domain metrics such as low-frequency power （LF）， high-frequency power （HF）， and low-frequency/high-frequency power ratio （LF/HF）， as well as nonlinear metrics such as approximate entropy （ApEn）， sample entropy （SampEn）. ResultsFinally， 63 cases were included in the outcome analysis， including 30 cases in the intervention group and 33 cases in the control group. After the intervention， the differences of L₁~L₄ vertebrae， bone density of bilateral femoral neck and bilateral total hip in the intervention group were not statistically significant when compared with those before intervention （P＞0.05）， while the bone density of all parts of the control group decreased significantly compared with that before intervention （P＜0.05）， and the difference in the bone density of the L₁~L₄ vertebrae， bilateral femoral neck， and the right total hip before and after the intervention of the intervention group was smaller than that of the control group （P＜0.05）. The differences in P1NP and β-CTX between groups before and after intervention was not statistically significant （P＞0.05）. Compared with walking exercise， LF decreased， HF increased and LF/HF decreased during Tai Chi exercise （P＜0.05）； the time domain indexes and non-linear indexes between groups had no statistically significant difference （P＞0.05）. ConclusionTai Chi exercise can maintain lumbar， hip， and femoral bone density and improve sympathetic/parasympathetic balance in people at high risk for osteoporosis， but cannot significantly improve bone turnover markers.

Objective To investigate the capillarization of liver sinusoidal endothelial cells (LSECs) and its association with hepatic fibrosis during the development of alveolar echinococcosis, so as to provide the basis for unraveling the mechanisms underlying the role of LSEC in the development and prognosis of hepatic injuries and hepatic fibrosis caused by alveolar echinococcosis. Methods Forty C57BL/6 mice at ages of 6 to 8 weeks were randomly divided into a control group and 1-, 2- and 4-week infection groups, of 10 mice in each group. Each mouse in the infection groups was intraperitoneally injected with 2 000 Echinococcus multilocularis protoscoleces, while each mouse in the control group was given an equal volume of phosphate-buffered saline using the same method. All mice were sacrificed 1, 2 and 4 weeks post-infection and mouse livers were collected. The pathological changes of livers were observed using hematoxylin-eosin (HE) staining, and hepatic fibrosis was evaluated through semi-quantitative analysis of Masson’s trichrome staining-positive areas. The activation of hepatic stellate cells (HSCs) and extracellular matrix (ECM) deposition were examined using immunohistochemical staining of α-smooth muscle actin (α-SMA) and collagen type I alpha 1 (COL1A1), and the fenestrations on the surface of LSECs were observed using scanning electron microscopy. Primary LSECs were isolated from mouse livers, and the mRNA expression of LSEC marker genes Stabilin-1, Stabilin-2, Ehd3, CD209b, GATA4 and Maf was quantified using real-time fluorescence quantitative PCR (qPCR) assay. Results Destruction of local liver lobular structure was observed in mice 2 weeks post-infection with E. multilocularis protoscoleces, and hydatid cysts, which were surrounded by granulomatous tissues, were found in mouse livers 4 weeks post-infection. Semi-quantitative analysis of Masson’s trichrome staining showed a significant difference in the proportion of collagen fiber contents in mouse livers among the four groups (F = 26.060, P < 0.001), and a higher proportion of collagen fiber contents was detected in mouse livers in the 4-week infection group [(11.29 ± 2.58)%] than in the control group (P < 0.001). Immunohistochemical staining revealed activation of a few HSCs and ECM deposition in mouse livers 1 and 2 weeks post-infection, and abundant brown-yellow stained α-SMA and COL1A1 were deposited in the lesion areas in mouse livers 4 weeks post-infection, which spread to surrounding tissues. Semi-quantitative analysis revealed significant differences in α-SMA (F = 7.667, P < 0.05) and COL1A1 expression (F = 6.530, P < 0.05) in mouse levers among the four groups, with higher α-SMA [(7.13 ± 3.68)%] and COL1A1 expression [(13.18 ± 7.20)%] quantified in mouse livers in the 4-week infection group than in the control group (both P values < 0.05). Scanning electron microscopy revealed significant differences in the fenestration frequency (F = 37.730, P < 0.001) and porosity (F = 16.010, P < 0.001) on the surface of mouse LSECs among the four groups, and reduced fenestration frequency and porosity were observed in the 1-[(1.22 ± 0.48)/μm² and [(3.05 ± 0.91)%] and 2-week infection groups [(3.47 ± 0.10)/μm² and (7.57 ± 0.23)%] groups than in the control group (all P values < 0.001). There was a significant difference in the average fenestration diameter on the surface of mouse LSECs among the four groups (F = 15.330, P < 0.001), and larger average fenestration diameters were measured in the 1-[(180.80 ± 16.42) nm] and 2-week infection groups [(161.70 ± 3.85) nm] than in the control group (both P values < 0.05). In addition, there were significant differences among the four groups in terms of Stabilin-1 (F = 153.100, P < 0.001), Stabilin-2 (F = 57.010, P < 0.001), Ehd3 (F = 31.700, P < 0.001), CD209b (F = 177.400, P < 0.001), GATA4 (F = 17.740, P < 0.001), and Maf mRNA expression (F = 72.710, P < 0.001), and reduced mRNA expression of Stabilin-1, Stabilin-2, Ehd3, CD209b, GATA4 and Maf genes was quantified in three infection groups than in the control group (all P values < 0.001). Conclusions E. multilocularis infections may induce capillarization of LSECs in mice, and result in a reduction in the expression of functional and phenotypic marker genes of LSECs, and capillarization of LSECs occurs earlier than activation of HSC and development of hepatic fibrosis.

Objective To explore the changes in serum energy metabolites in patients with peripheral T-cell lymphoma,and investigate serum biomarkers for monitoring peripheral T-cell lymphoma from the perspective of energy metabolism.Methods Multiple/selected reaction monitoring(MRM/SRM)was used to detect the energy-related metabolites in the sera of 16 patients with newly diagnosed peripheral T-cell lymphoma admitted in the Hematology Medical Center of the Second Affiliated Hospital of Army Medical University from November 2020 to December 2021,as well as 10 recruited healthy volunteers.The corresponding clinical data including medical history,laboratory results and image data were collected and retrospectively analyzed.Results Significant differences were seen in the contents and expression profiles of serum energy metabolism-related products between the patients and the healthy volunteers.The patients had significantly reduced serum contents of cyclic AMP,succinate,citrate and cis-aconitate(P＜0.05),and elevated D-glucose 6-phosphate content(P＜0.05).The serum contents of citrate and succinate were negatively correlated with the risk stratification(low-,moderate-and high-risk)and clinical stage of the disease(P＜0.05).Meanwhile,there was a negative correlation between the contents of L-malic acid and citrate and the mid-term efficacy evaluation results,such as complete/partial response(CR/PR)or stable disease(SD)(P＜0.05).For patients with extranodal NK/T cell lymphoma(n=10),there were also significant reductions in the contents of cyclic AMP,succinate,citrate,isocitrate and cis-aconitate in the sera of patients compared with healthy volunteers(P＜0.05),and the contents of citrate and succinate were negatively correlated with the clinical stage(P＜0.05)and were rather correlated with mid-term efficacy evaluation results(CR/PR or SD)(P＜0.05).For patients with angioimmunoblastic T-cell lymphoma(n=6),the serum contents of cyclic AMP,citrate and succinate were significantly lower,while the content of D-glucose 6-phosphate was higher when compared with the healthy volunteers(P＜0.05),and the content of succinate was negatively correlated with both clinical stage and risk grade of the patients(P＜0.05).Conclusion There are 5 serum differential metabolites identified between patients with peripheral T-cell lymphoma and healthy controls,and succinate and citrate are expected to be serum biomarkers of peripheral T-cell lymphoma.

Alzheimer’s disease (AD) is a central neurodegenerative disease characterized by progressive cognitive dysfunction and behavioral impairment, and there is a lack of effective drugs to treat AD clinically. Existing medications for the treatment of AD, such as Tacrine, Donepezil, Rivastigmine, and Aducanumab, only serve to delay symptoms and but not cure disease. To add insult to injury, these medications are associated with very serious adverse effects. Therefore, it is urgent to explore effective therapeutic drugs for AD. Recently, studies have shown that a variety of enzyme inhibitors, such as cholinesterase inhibitors, monoamine oxidase (MAO)inhibitors, secretase inhibitors, can ameliorate cholinergic system dysfunction, Aβ production and deposition, Tau protein hyperphosphorylation, oxidative stress damage, and the decline of synaptic plasticity, thereby improving AD symptoms and cognitive function. Some plant extracts from natural sources, such as Umbelliferone, Aaptamine, Medha Plus, have the ability to inhibit cholinesterase activity and act to improve learning and cognition. Isochromanone derivatives incorporating the donepezil pharmacophore bind to the catalytic active site (CAS) and peripheral anionic site (PAS) sites of acetylcholinesterase (AChE), which can inhibit AChE activity and ameliorate cholinergic system disorders. A compound called Rosmarinic acid which is found in the Lamiaceae can inhibit monoamine oxidase, increase monoamine levels in the brain, and reduce Aβ deposition. Compounds obtained by hybridization of coumarin derivatives and hydroxypyridinones can inhibit MAO-B activity and attenuate oxidative stress damage. Quinoline derivatives which inhibit the activation of AChE and MAO-B can reduce Aβ burden and promote learning and memory of mice. The compound derived from the combination of propargyl and tacrine retains the inhibitory capacity of tacrine towards cholinesterase, and also inhibits the activity of MAO by binding to the FAD cofactor of monoamine oxidase. A series of hybrids, obtained by an amide linker of chromone in combine with the benzylpiperidine moieties of donepezil, have a favorable safety profile of both cholinesterase and monoamine oxidase inhibitory activity. Single domain antibodies (such as AAV-VHH) targeted the inhibition of BACE1 can reduce Aβ production and deposition as well as the levels of inflammatory cells, which ultimately improve synaptic plasticity. 3-O-trans-p-coumaroyl maslinic acid from the extract of Ligustrum lucidum can specifically inhibit the activity of γ-secretase, thereby rescuing the long-term potentiation and enhancing synaptic plasticity in APP/PS1 mice. Inhibiting γ-secretase activity which leads to the decline of inflammatory factors (such as IFN-γ, IL-8) not only directly improves the pathology of AD, but also reduces Aβ production. Melatonin reduces the transcriptional expression of GSK-3β mRNA, thereby decreasing the levels of GSK-3β and reducing the phosphorylation induced by GSK-3β. Hydrogen sulfide can inhibitGSK-3β activity via sulfhydration of the Cys218 site of GSK-3β, resulting in the suppression of Tau protein hyperphosphorylation, which ameliorate the motor deficits and cognitive impairment in mice with AD. This article reviews enzyme inhibitors and conformational optimization of enzyme inhibitors targeting the regulation of cholinesterase, monoamine oxidase, secretase, and GSK-3β. We are hoping to provide a comprehensive overview of drug development in the enzyme inhibitors, which may be useful in treating AD.

Urinary tract infection is the most common infectious complication after kidney transplantation.To further reduce the incidence of urinary tract infection after kidney transplantation,improve the diagnosis and treatment level of urinary tract infection after kidney transplantation in China,prevent the development of bacterial drug resistance and ensure the safety and effectiveness of drug use,Branch of Organ Transplantation of Chinese Medical Association organized experts in the fields of kidney transplantation and infectious diseases to consider clinical status of urinary tract infection after kidney transplantation in China,refer to"Diagnosis and Treatment of Urological and Andrological Diseases in China(2022 edition)"and"Urinary Tract Infection in Solid Organ Transplant Recipients in American Society of Transplantation Practical Guidelines for Infectious Diseases(2019 edition)",and formulate"Guidelines for Clinical Diagnosis and Treatment of Urinary Tract Infection in Kidney Transplant Recipients in China"from the perspectives of clinical classification and definition,epidemiology and etiology,diagnosis and treatment of urinary tract infection after kidney transplantation,respectively.

Objective To establish high performance liquid chromatography(HPLC)characteristic chromatograms of Xinqingduyin Granules(composed of Taraxaci Herba,Lonicerae Japonicae Flos,Chrysanthemi Indici Flos,etc.)and content determination of chicory acid and glycyrrhizic acid,and to optimize the preparation process of Xinqingduyin Granules.Methods Using the characteristic chromatograms of Xinqingduyin and the retention rate of chicory acid and glycyrrhizic acid as indexes,we carried out orthogonal experiment to optimize the extraction process of Xinqingduyin,and studied the concentration process.The molding process of Xinqingduyin Granules was conducted by screening the types and dosage of auxiliary materials,then three batches of pilot experiments were carried out.Results HPLC characteristic chromatograms of Xinqingshuyin Granules and the determination methods of chicory acid and glycyrrhizic acid were established.The optimal preparation technology was as follows:8 times amount of water was added,the drug was decocted for 3 times,with 1 hour per time.After the extract was concentrated under reduced pressure at 80℃,the appropriate amount of steviol glycoside and lactose was added into the extract and mixed.One-step granulation and packaging were adopted.The retention rates of chicoric acid and glycyrrhizic acid in the 3 batches of Xinqingduyin Granules,which were prepared on the pilot scale,were(54.56±1.63)%and(54.96±1.08)%,and the rate of finished product was(87.47±0.49)%,respectively.The quality is uniform,and the characteristic map of Xinqingduyin Granules showed high similarity with that of decoction prepared from the same batch of slices.Conclusion The optimized preparation technology is reasonable,feasible and reproducible.This preparation can be used to obtain the granule with similar materials of Xinqingduyin decoction.

Objective:To explore the application effect of pelvic floor outpatient intervention during pregnancy on vaginal delivery of full-term primiparous women.Methods:Single birth primipara who were willing to establish a card and have a desire to give birth naturally in the First People's Hospital of Longquanyi District from January 2021 to December 2021 were divided into odd and even number groups according to the order of filing:the odd group received routine obstetric outpatient management and pelvic floor outpatient intervention(Kegel exercise joint perineum massage)in 200 cases(research group),and even number group received routine obstetric outpatient management in 200 cases(control group).The incidence of vaginitis,cesarean section rate,vaginal delivery rate,obstetric laceration,vaginal midwifery rate,perineal incision,delivery outcome and the length of perineal body and reproductive hiatus before and 42 days after delivery,vaginal width andother vaginal delivery complications(urina-ry retention and puerperal hemorrhoids)were compared between the two groups.Results:87 cases were includ-ed in the final study group,while 104 cases were included in the control group.The perineal incision rate,perineal integrity rate,vaginal midwifery rate,l degree and Ⅱ degree perineal laceration rate,postpartum hemorrhage in the study group were better than those in the control group(P＜0.05).The length of reproductive hiatus 42 days after delivery in the study group was shorter compared with that in the control group(P＜0.05).There were no signifi-cant differences in the incidence of vaginitis,cesarean section rate,time of the second stage of labor,vaginal wall laceration rate,Apgar score of newborns neonatal birth trauma rate,urinary retention,puerperal hemorrhoids,post-partum vaginal width and perineal body length between the two groups(P＞0.05).Conclusions:Pelvic floor outpa-tient intervention during pregnancy can reduce the harm caused by vaginal delivery in full-term primiparas to a cer-tain extent,and does not increase the incidence of neonatal delivery complications,it is worthy of clinical promotion.

Objective:To explore the application effect of pelvic floor outpatient intervention during pregnancy on vaginal delivery of full-term primiparous women.Methods:Single birth primipara who were willing to establish a card and have a desire to give birth naturally in the First People's Hospital of Longquanyi District from January 2021 to December 2021 were divided into odd and even number groups according to the order of filing:the odd group received routine obstetric outpatient management and pelvic floor outpatient intervention(Kegel exercise joint perineum massage)in 200 cases(research group),and even number group received routine obstetric outpatient management in 200 cases(control group).The incidence of vaginitis,cesarean section rate,vaginal delivery rate,obstetric laceration,vaginal midwifery rate,perineal incision,delivery outcome and the length of perineal body and reproductive hiatus before and 42 days after delivery,vaginal width andother vaginal delivery complications(urina-ry retention and puerperal hemorrhoids)were compared between the two groups.Results:87 cases were includ-ed in the final study group,while 104 cases were included in the control group.The perineal incision rate,perineal integrity rate,vaginal midwifery rate,l degree and Ⅱ degree perineal laceration rate,postpartum hemorrhage in the study group were better than those in the control group(P＜0.05).The length of reproductive hiatus 42 days after delivery in the study group was shorter compared with that in the control group(P＜0.05).There were no signifi-cant differences in the incidence of vaginitis,cesarean section rate,time of the second stage of labor,vaginal wall laceration rate,Apgar score of newborns neonatal birth trauma rate,urinary retention,puerperal hemorrhoids,post-partum vaginal width and perineal body length between the two groups(P＞0.05).Conclusions:Pelvic floor outpa-tient intervention during pregnancy can reduce the harm caused by vaginal delivery in full-term primiparas to a cer-tain extent,and does not increase the incidence of neonatal delivery complications,it is worthy of clinical promotion.

Objective:To explore the application effect of pelvic floor outpatient intervention during pregnancy on vaginal delivery of full-term primiparous women.Methods:Single birth primipara who were willing to establish a card and have a desire to give birth naturally in the First People's Hospital of Longquanyi District from January 2021 to December 2021 were divided into odd and even number groups according to the order of filing:the odd group received routine obstetric outpatient management and pelvic floor outpatient intervention(Kegel exercise joint perineum massage)in 200 cases(research group),and even number group received routine obstetric outpatient management in 200 cases(control group).The incidence of vaginitis,cesarean section rate,vaginal delivery rate,obstetric laceration,vaginal midwifery rate,perineal incision,delivery outcome and the length of perineal body and reproductive hiatus before and 42 days after delivery,vaginal width andother vaginal delivery complications(urina-ry retention and puerperal hemorrhoids)were compared between the two groups.Results:87 cases were includ-ed in the final study group,while 104 cases were included in the control group.The perineal incision rate,perineal integrity rate,vaginal midwifery rate,l degree and Ⅱ degree perineal laceration rate,postpartum hemorrhage in the study group were better than those in the control group(P＜0.05).The length of reproductive hiatus 42 days after delivery in the study group was shorter compared with that in the control group(P＜0.05).There were no signifi-cant differences in the incidence of vaginitis,cesarean section rate,time of the second stage of labor,vaginal wall laceration rate,Apgar score of newborns neonatal birth trauma rate,urinary retention,puerperal hemorrhoids,post-partum vaginal width and perineal body length between the two groups(P＞0.05).Conclusions:Pelvic floor outpa-tient intervention during pregnancy can reduce the harm caused by vaginal delivery in full-term primiparas to a cer-tain extent,and does not increase the incidence of neonatal delivery complications,it is worthy of clinical promotion.

Objective:To explore the application effect of pelvic floor outpatient intervention during pregnancy on vaginal delivery of full-term primiparous women.Methods:Single birth primipara who were willing to establish a card and have a desire to give birth naturally in the First People's Hospital of Longquanyi District from January 2021 to December 2021 were divided into odd and even number groups according to the order of filing:the odd group received routine obstetric outpatient management and pelvic floor outpatient intervention(Kegel exercise joint perineum massage)in 200 cases(research group),and even number group received routine obstetric outpatient management in 200 cases(control group).The incidence of vaginitis,cesarean section rate,vaginal delivery rate,obstetric laceration,vaginal midwifery rate,perineal incision,delivery outcome and the length of perineal body and reproductive hiatus before and 42 days after delivery,vaginal width andother vaginal delivery complications(urina-ry retention and puerperal hemorrhoids)were compared between the two groups.Results:87 cases were includ-ed in the final study group,while 104 cases were included in the control group.The perineal incision rate,perineal integrity rate,vaginal midwifery rate,l degree and Ⅱ degree perineal laceration rate,postpartum hemorrhage in the study group were better than those in the control group(P＜0.05).The length of reproductive hiatus 42 days after delivery in the study group was shorter compared with that in the control group(P＜0.05).There were no signifi-cant differences in the incidence of vaginitis,cesarean section rate,time of the second stage of labor,vaginal wall laceration rate,Apgar score of newborns neonatal birth trauma rate,urinary retention,puerperal hemorrhoids,post-partum vaginal width and perineal body length between the two groups(P＞0.05).Conclusions:Pelvic floor outpa-tient intervention during pregnancy can reduce the harm caused by vaginal delivery in full-term primiparas to a cer-tain extent,and does not increase the incidence of neonatal delivery complications,it is worthy of clinical promotion.