Objective:To explore the mental health statues of patients with HIV worried well.Methods:①To record the personal data of 72 patients and information they knew about AIDS.②Symptom check-list 90(SCL-90) were assessed to the patients with HIV worried well.③To treat the patients with psychological consultation and treatment mainly,partly with medicines,observe changes during the treatment.Results:Most patients with HIV worried well had middle school culture level(94.4%) ,70(97.2%) patients had or their sex partners had high risk sex,39(54.2%) patients got the information about AIDS from Internet;Symptom of the disease were complex,the main complains were worry of infected HIV and similar symptoms with AIDS;The factor scores of somatization,force,relationship,depression,anxiety,hostility,worry,crankiness and psychosis in 72 patients were significantly higher than those in Chinese norms(P

Objective:To investigate the effects of ursolic acid (UA) on the proliferation and differentiation of osteoclasts (OC), and to explore its role in orthodontic force-induced root resorption and its relationship with OC.Methods:The mononuclear / macrophage cells RAW264.7 were induced to the OC.Tacrolimus acid phosphatase (TRAP) staining and bone resorption lacunae observation were used to identify the induction.CCK-8 method was used to select the appropriate concentration of UA for RAW264.7 cell-free biotoxicity and to observe its effect on the proliferation and differentiation of RAW264.7.In experimental groups, UA with gradient concentrations (1.0,2.5,5.0,10.0,20.0and 40.0 μmol·L-1)were added.UA was not added in control group.Results:The TRAP staining and bone resorption lacunae observation showed that after the RAW264.7 cells were induced for 5 d, the TRAP staining positive cells were found;the resorption lacunae were rounded,and oval, etc,the bottom wall was coarser,and the boundary was clear,which indicated that the RAW264.7 cells were successfully differentiated into the osteoclasts.The CCK-8 detection results showed that high concentration of UA (> 10.0 μmol·L-1) significantly inhibited the proliferation of OC;the appropriate concentration of UA (5.0 μmol·L-1) was in the biological safety concentration range and could inhibit the OC proliferation;low concentration of UA (<2.5 μmol·L-1) had no effect.Conclusion:RANKL can induce the differentiation and maturation of RAW264.7 cells.UA is correlated with the proliferation and differentiation of OC;UA has inhibitory effect on OC at the appropriate concentration (5.0 μmol·L-1) in a time-dependent manner.

Alzheimer''s disease (AD) has brought to us huge medical and economic burdens, and so discovery of its therapeutic drugs is of great significance.In this paper, we utilized knowledge graph embedding (KGE) models to explore drug repurposing for AD on the publicly available drug repurposing knowledge graph (DRKG).Specifically, we applied four KGE models, namely TransE, DistMult, ComplEx, and RotatE, to learn the embedding vectors of entities and relations on DRKG.By using three classical knowledge graph evaluation metrics, we then evaluated and compared the performance of these models as well as the quality of the learned embedded vectors.Based on our results, we selected the RotatE model for link prediction and identified 16 drugs that might be repurposed for the treatment of AD.Previous studies have confirmed the potential therapeutic effects of 12 drugs against AD, i.e., glutathione, haloperidol, capsaicin, quercetin, estradiol, glucose, disulfire, adenosine, paroxetine, paclitaxel, glybride and amitriptyline.Our study demonstrates that drug repurposing based on KGE may provide new ideas and methods for AD drug discovery.Moreover, the RotatE model effectively integrates multi-source information of DRKG, enabling promising AD drug repurposing.The source code of this paper is available at https://github.com/LuYF-Lemon-love/AD-KGE.

Purpose To preliminarily establish a predictive model for assessing preterm birth in the first trimester via clinical history and multiple ultrasound parameters.Materials and Methods This study included 200 women in the first trimester of pregnancy from 6 to 8 weeks in the Affiliated Renhe Hospital of Three Gorges University from September 2020 to September 2021,and their clinical history,two-dimensional imaging data and cervical elastography data were collected.Logistic regression analysis,screening and assignment were performed to initially establish a clinical prediction model for evaluating preterm birth during the first trimester.Results Finally,41 pregnant women developed preterm birth(preterm birth group),and 159 pregnant women did not develop preterm birth(term group).History of miscarriage,history of preterm birth,uterocervical angle(UCA),A,and A1 were the independent risk factors for preterm birth via univariate analysis,and multivariate analysis was carried out to obtain the formula:Logit(P)=1.495×abortion history+1.060×A1+0.795×UCA+1.354×A-14.951,which had a good fit via Hosmer-Lemeshow goodness-of-fit test,and the diagnostic efficiency was 96.9%.Conclusion The early pregnancy prediction model can effectively predict the occurrence of preterm birth in pregnant women with singleton pregnancy.

BACKGROUND/OBJECTIVES: Weight loss via a mobile application (App) or a paper-based diary (Paper) may confer favorable metabolic and anthropometric changes. SUBJECTS/METHODS: A randomized parallel trial was conducted among 57 adults whose body mass indices (BMIs) were 25 kg/m 2 or greater. Participants randomly assigned to either the App group (n = 30) or the Paper group (n = 27) were advised to record their foods and supplements through App or Paper during the 12-week intervention period. Relative changes of anthropometries and biomarker levels were compared between the 2 intervention groups.Untargeted metabolic profiling was identified to discriminate metabolic profiles. RESULTS: Out of the 57 participants, 54 participants completed the trial. Changes in body weight and BMI were not significantly different between the 2 groups (P = 0.11). However, body fat and low-density lipoprotein (LDL)-cholesterol levels increased in the App group but decreased in the Paper group, and the difference was statistically significant (P = 0.03 for body fat and 0.02 for LDL-cholesterol). In the metabolomics analysis, decreases in methylglyoxal and (S)-malate in pyruvate metabolism and phosphatidylcholine (lecithin) in linoleic acid metabolism from pre- to post-intervention were observed in the Paper group. CONCLUSIONS In the 12-week randomized parallel trial of weight loss through a App or a Paper, we found no significant difference in change in BMI or weight between the App and Paper groups, but improvement in body fatness and LDL-cholesterol levels only in the Paper group under the circumstances with minimal contact by dietitians or health care providers.Trial Registration: Clinical Research Information Service Identifier: KCT0004226

OBJECTIVETo compare the pain thresholds of acupoints in the meridians related to irritable bowel syndrome(IBS) between IBS patients and healthy people.

METHODSThirty-four healthy adults were collected into a normal group,and 60 patients with IBS were arranged into an IBS group. Pain thresholds were detected on the acupoints of large intestinal,small intestinal,stomach,spleen,gallbladder meridians and some commone use acupoints for IBS by pain measuring apparatus three times. Bilateral-well,-spring,-stream,-river,-sea,front-alarm,lower-sea,-primary,-connecting and back-transport points of each meridian were selected as the main acupoints. And pain thresholds of acupoints common used in clinic were compared between the two groups.

RESULTSThe thresholds of five-transport points and-connecting point of the large intestinal meridian in the IBS group were apparently lower than those in the normal group(all<0.05),with Hegu(LI 4),Tianshu(ST 25),Shangjuxu(ST 37) and Dachangshu(BL 25) more decreasing(all<0.01). The thresholds of five-transport points,front-alarm point and-primary point of the small intestinal meridian in the IBS group were obviously lower than those in the normal group(all<0.05),with Zhizheng(SI 7),Xiajuxu(ST 39) and Xiaochangshu(BL 27) more decreasing(all<0.01). The thresholds of Zusanli(ST 36),Weishu(BL 21),Yanglingquan(GB 34),Danshu(BL 19),Pishu(BL 20),Neiguan(PC 6),Taichong(LR 3),Taixi(KI 3),Sanyinjiao(SP 6) and Qihai(CV 6) in the IBS group were markedly lower than those in the normal group(all<0.05).

CONCLUSIONSThe pathological changes of IBS often appeared in the stomach,large intestinal,small intestinal,bladder meridians,and some acupoints in the liver,spleen and kidney meridians. When the functions of viscera are abnormal,the pain thresholds of related acupoints tend to decrease,and meridians and acupoints become sensitized from quiet state.

Objective:To investigate the clinical features and prognosis of children with positive flow cytometry of cerebrospinal fluid(CNSI + )in maintained acute lymphoblastic leukemia(ALL). Methods:Clinical data including clinical characteristics, diagnosis, treatment and prognosis of 12 patients with ALL CNSI diagnosis in maintenance period were analyzed to explore the prognostic factors.Results:The 12 children with CNSI + in maintenance were mainly male, and all of them were B-ALL.High leukemia cell count at first diagnosis( χ2=6.374, P=0.012), insensitivity to glucocorticoid pretherapy( χ2=5.048, P=0.025), increased rate of abnormal CSF cells(≥60%, χ2=7.024, P=0.008), course of CNSI + ≤14 months( χ2=4.873, P=0.027)and complex karyotype( χ2=9.356, P=0.002)are the adverse prognostic factors.Karyotype is an independent factor( P=0.017). Conclusion:The prognosis of children with CNSI + is unfavourable.Intrathecal injection and chemotherapy are the important treatment for children with CNSI + in maintenance period.Hematopoietic stem cell transplantation is an important choice for children with relapse.

Objective:To investigate the clinical characteristics, diagnosis and treatment methods of children with gene mutation-negative essential thrombocytosis (ET).Methods:The clinical data of a child with gene mutation-negative ET in the Blood Diseases Hospital of Chinese Academy of Medical Sciences were collected, and the related literature was reviewed.Results:The epistaxis was the main clinical symptom of this child. He was diagnosed as ET (gene mutation-negative) by bone marrow aspiration and gene detection. After hydroxyurea treatment, the platelet count increased and the clinical symptoms were improved.Conclusions:The incidence rate of ET in children is low, and the frequency of gene mutation-negative ET in children reported in the literature is different. The large number of samples and long-term follow-up studies are needed.

Objective To investigate the effect of muscle function on structural stress in patient with lumbar disc herniation (LDH), by observing the stress changes in LDH lumbar-pelvis finite element model loaded with muscle force. Methods One normal healthy volunteer and one LDH patient were selected. Their CT data were collected to establish two corresponding normal and LDH lumbar-pelvis finite element models, and their gait data were also simultaneously collected to drive the AnyBody musculoskeletal model. The muscle force around the lumbar and pelvis as well as the hip-joint force were obtained as the loading condition. Self-loading of the normal and LDH model as well as the normal model loaded with LDH muscle forces were conducted seperately. Then the stress changes in L4 and L5 intervertebral discs and sacroiliac joints under two above loading conditions were compared. Results The stress curve of normal model loaded with LDH muscle force showed a unimodal stress curve, instead of a bimodal curve, and such trend of stress-time curve was as same as the trend of the LDH model during self-loading. But the stress difference in L4 and L5 intervertebral discs and sacroiliac joint of the normal model loaded with LDH muscle force was smaller than that in the LDH model during self-loading. Conclusions Abnormal muscle function of LDH could lead to abnormal joint stress of the intervertebral discs and sacroiliac joint. Structural imbalance itself could lead to stress imbalance, and muscle as a driving factor was an important cause of anomaly structural dynamic stress, thus leading to abnormal joint motion patterns. Therefore, attention should be paid to assessment of the imbalance of peripheral muscle function in clinical treatment of LDH.

5-aminolevulinic acid (5-ALA) plays an important role in the fields of medicine and agriculture. 5-ALA can be produced by engineered Escherichia coli and Corynebacterium glutamicum. We systematically engineered the C4 metabolic pathway of C. glutamicum to further improve its ability to produce 5-ALA. Firstly, the hemA gene encoding 5-ALA synthase (ALAS) from Rhodobacter capsulatus and Rhodopseudomonas palustris were heterologously expressed in C. glutamicum, respectively. The RphemA gene of R. palustris which showed relatively high enzyme activity was selected. Screening of the optimal ribosome binding site sequence RBS5 significantly increased the activity of RphemA. The ALAS activity of the recombinant strain reached (221.87±3.10) U/mg and 5-ALA production increased by 14.3%. Subsequently, knocking out genes encoding α-ketoglutarate dehydrogenase inhibitor protein (odhI) and succinate dehydrogenase (sdhA) increased the flux of succinyl CoA towards the production of 5-ALA. Moreover, inhibiting the expression of hemB by means of sRNA reduced the degradation of 5-ALA, while overexpressing the cysteine/O-acetylserine transporter eamA increased the output efficiency of intracellular 5-ALA. Shake flask fermentation using the engineered strain C. glutamicum 13032/∆odhI/∆sdhA-sRNAhemB- RBS5RphemA-eamA resulted in a yield of 11.90 g/L, which was 57% higher than that of the original strain. Fed-batch fermentation using the engineered strain in a 5 L fermenter produced 25.05 g/L of 5-ALA within 48 h, which is the highest reported-to-date yield of 5-ALA from glucose.
Aminolevulinic Acid/metabolism* ; Corynebacterium glutamicum/metabolism* ; Fermentation ; Metabolic Engineering ; Rhodobacter capsulatus/enzymology* ; Rhodopseudomonas/enzymology*