Diabetes mellitus(DM)stands as a chronic metabolic ailment predominantly characterized by elevated blood glucose lev-els,stemming from either a resistance to insulin or aberrations in insulin secretion.The ensuing persistent hyperglycemia,a direct con-sequence of pancreatic β-cell devastation,acts as a catalyst for a myriad of complications,inclusive of extensive neuropathies.The dis-ease has substantial prevalence and mortality rates,underscoring the gravity of its impact on public health.Dental pulp stem cells(DPSCs)are readily obtainable,and they exhibit a profound capacity for self-renewal,multi-lineage differentiation,and vigorous pro-liferation.Remarkably,DPSCs can differentiate into pancreatic β-cells,subsequently participate in insulin secretion and play a pivotal role in immune modulation.This has achieved notable advancements in the therapeutic domain,particularly in the treatment of chronic diseases.Furthermore,DPSCs harbor the potential to mitigate symptoms in patients afflicted with type 1 diabetes.They navigate this therapeutic pathway through mechanisms that involve suppressing autoimmunity,modulating inflammatory responses,and counteracting oxidative stress.This article meticulously reviews the biological characteristics inherent to DPSCs and explores their multifaceted thera-peutic potential in addressing DM and its associated complications.Through this endeavor,the article aims to contribute to the refine-ment and enhancement of DM management strategies.

ObjectiveTo explore the differences between the ancient decocting methods and modern decocting method of Yihuangtang by taking the dry extract rate， the content of active ingredients and the fingerprint information as indicators， so as to provide reference for the preparation of benchmark samples and the development of compound preparations of this famous classical formula. MethodAccording to the three decocting methods recorded in Paozhi Dafa and Jianming Yigou and Management Specifications of Traditional Chinese Medicine Decoction Chambers in Medical Institutions， the Yihuangtang was decocted respectively. The polysaccharide content in the samples was determined by ultraviolet spectrophotometer （UV） at 488 nm， and the contents of alkaloids （berberine hydrochloride， phellodendrine chloride and magnoflorine） in the samples and their fingerprint profiles were determined by high performance liquid chromatography （HPLC）， and the dry extract rate was combined to compare the differences of the three decocting methods of Yihuangtang. Among them， the fingerprint was gradient eluted with acetonitrile （A） -0.1% phosphoric acid aqueous solution （B） as mobile phase （0-10 min， 5%-8%A； 10-35 min， 8%A； 35-45 min， 8%-12% A； 45-75 min， 12%-17%A； 75-105 min， 17%-35%A； 105-110 min， 35%-100%A； 110-112 min， 100%-5%A； 112-122 min， 5%A）， and the detection wavelength was 230 nm. ResultWhen the decoction was carried out according to the method described in Paozhi Dafa， the content of polysaccharides was higher than that of the modern decocting method and the method described in Jianming Yigou. However， the contents of berberine hydrochloride， phellodendrine chloride and magnoflorine were the highest in the modern decocting method. Meanwhile， the number of peaks in fingerprint of the samples prepared by the three decocting methods was basically the same， and 13 common peaks were matched， and the three common peaks of berberine hydrochloride， phellodendrine chloride and magnoflorine were identified. However， the relative peak areas of the common peaks in the fingerprint of the samples prepared by the three decocting methods varied greatly， suggesting that there were differences in the extracting effects of different decocting methods. In addition， there were also differences in the dry extract rate among the three decocting methods of Yihuangtang， and the highest value was obtained by decocting the samples according to the method recorded in Paozhi Dafa. ConclusionDecocting method can affect the dry extract rate， fingerprint information and active ingredient content of Yihuangtang， among which the modern decocting method is conducive to the extraction of alkaloids and the preparation transformation of this famous classical formula， and it is recommended to determine its preparation process by optimizing the modern decocting method.

Objective: To explore the association between exposure to bedroom night light during sleep and emotional symptoms in children and provide a scientific basis for subsequent effective prevention and intervention. Methods: In December 2021, 1 926 students from grades 4 to 6 were recruited to conduct a student questionnaire survey in two primary schools in Tianchang of Chuzhou City, Anhui Province. The data, including general demographic information, use of night lights and curtains, emotional symptoms, and other information, was collected. Binary Logistic regression analysis was used to examine the correlation between night light use and children s emotional symptoms. Results: The reporting rates of depression symptoms, generalized anxiety symptoms, social phobia, and obsessive compulsive symptoms of the children were 2.5%, 2.6%, 3.4% and 2.5%, respectively. About 12.6% of children often sleep with a night light on, and 22.0% of children did not close the curtains. Binary Logistic regression analysis revealed that frequent sleep with night lights was associated with an increased risk of depression symptoms( OR=2.29, 95%CI = 1.04- 5.03), social phobia ( OR=1.93, 95%CI =1.02-3.64) and obsessivecompulsive symptoms ( OR=3.44, 95%CI =1.72-6.88) in children( P < 0.05). Conclusion There is a positive correlation between bedroom night light exposure during sleep and the detection rate of children s emotional symptoms. The attention should be paid to bedroom light environment of children during sleep to reduce the adverse effects of night light exposure on the mental health.

Programmed death factor-1 (PD-1) is a promising target molecule for clinical tumor immunotherapy in recent years. Recent studies suggest that PD-1 and related signaling pathways (PI3K/AKT, JAK/STAT3, p38MAPK, ERK, etc.) played a key regulatory role in the process of pulmonary fibrosis. Silicosis is a systemic disease caused by inhalation of free silicon dioxide dust, which is mainly characterized by extensive pulmonary nodular fibrosis and seriously endangers the health of patients. Dissecting the role of PD-1 in the pathogenesis of silicosis may be of great significance in the mechanism research and clinical diagnosis and treatment of silicosis. This paper reviews the regulation of PD-1 molecule on related signaling pathways and its role in pulmonary fibrosis, and looks forward to the potential application of these mechanistic studies in silicosis research.

Objective: To evaluate the relationship between the offset of a laser-assisted flap using the WaveLight FS200 femtosecond laser and the clinical results after femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK). Methods: In this prospective cohort study, 125 patients who underwent FS-LASIK for myopia by WaveLight FS200 femtosecond laser from June 2017 to July 2018 at the Tungwah Ophthalmic Center were divided into two groups according to the offset of the corneal flap from the pupil center: the no-offset group (57 eyes) and the certain-offset group (68 eyes); the baseline data, including age, sex, uncorrected visual acuity(UCVA), spherical degree, and central corneal thickness were matched in the two groups.UCVA, residual astigmatism, spherical degree, corneal curvature and aberration were observed 1 week and 1 month after surgery.The study protocol was approved by the Ethics Committee of Tungwah Hospital of Sun Yat-Sen University (No.2017DHLL004). Written informed consent was obtained from each subject prior to entering the study cohort. Results: UCVA, corneal curvature, spherical degree, spherical and corneal aberration between the two groups were not significantly different (all at P>0.05). One week after surgery, the residual astigmatism was ≤-0.50 D in 50 eyes (87.7%, 50/57)and >-0.50 D in 7 eyes (12.3%, 7/57) in the no-offset group; the residual astigmatism was ≤-0.50 D in 50 eyes (73.5%, 50/68) and >-0.50 D in 18 eyes (26.5%, 18/68) in the no-offset group.The residual astigmatism between the two groups 1 week after surgery was significantly different (χ²=3.902, P=0.048), and there was no significant difference in residual astigmatism 1 month after surgery (χ²=2.031, P=0.068). The trefoil of the no-offset group was statistically less than of the certain-offset group at 1 week and 1 month after surgery (0.05[0.04, 0.08]vs.0.06[0.04, 0.10]; 0.05[0.03, 0.07]vs.0.06[0.05, 0.09])(Z=-2.245, P=0.022; Z=-2.370, P=0.018). The spherical aberration and coma were not significantly different between the two groups at 1 week and 1 month after surgery (both at P>0.05). Conclusions The offset from femtosecond laser-assisted flap by WaveLight FS200 has no effect on long-term visual acuity or residual astigmatism.Some patients may have different visual experiences because of the residual astigmatism and higher order aberration during the early postoperative stage.

Objective:To explore the current situation of stigma and posttraumatic growth in female infertility patients, and to analyze the correlation between them.Methods:From January to May 2019, this study selected 110 female infertility patients of reproductive medicine center in a ClassⅢ Grade A hospital of Zhejiang Province as subjects by convenience sampling. Those infertility patients were investigated with the general information questionnaire, Infertility Stigma Scale (ISS) and the Post-traumatic Growth Inventory-Chinese version (PTGI-C) . A total of 110 questionnaire were sent out and 104 valid of them were collected.Results:Among 104 female infertility patients, the score of ISS was (67.14±14.33) with the intermediate level; the score of PTGI-C was (63.92±11.76) also with the intermediate level. There were statistical differences in the scores of post-traumatic growth among female infertility patients with different education levels, characteristics and whether being the only child ( P<0.05) . The scores of ISS of female infertility patients had statistically negative correlations with the total score and dimension scores of PTGI-C ( P<0.01) . Hierarchical regression analysis showed that the main influencing factors of posttraumatic growth in female infertility patients were the education levels, years of infertility, total score of stigma and scores of emotion and behavior with statistical differences ( P<0.05) . Conclusions:Stigma of female infertility patients is negatively correlated with the posttraumatic growth, which points that nurses could positively reduce the stigma of those patients so as to improve their posttraumatic growth.

Objective To observe the effects of massage along meridians based on different stages of Brunnstrom on lower extremity function in patients with convalescent stroke. Methods Ninety patients with convalescent stroke and lower limb dysfunction who were hospitalized in our hospital's brain center from September 2016 to August 2018 were selected. They were randomly assigned to an observation group of 45 patients and a control group of 45 patients. Both groups were given basic rehabilitation therapy. The control group was given conventional exercise therapy, and the observation group was given additional massage based on different stages of Brunnstrom. The two groups were treated for6 weeks, and the FMA-L, MAS and BBS scores before and after treatment were evaluated. Results There were no significant differences in FMA-L, MAS and BBS scores between the two groups (P>0.05). After 6 weeks of treatment, the FMA-L and BBS scores of the two groups were significantly higher than the pre-treatment scores, while the MAS scores were lower than the pre-treatment scores (P<0.05 or P<0.01). Compared with the control group, the improvement of FMA-L and BBS scores and the reduction of MAS score in the observation group was more significant (P<0.05 or P<0.01). Conclusion On the basis of conventional treatment methods, the application of massage therapy based on different stages of Brunnstrom is more helpful to improve the balance function of patients during stroke recovery, reduce muscle tension of lower limbs and to improve functional activities of lower limbs.

Objective: To investigate the effects of crystalline silica with different exposure patterns on lung fibrosis in rats. Methods: A total of 20 adult male Wistar rats were randomly divided into 4 groups consisting of five animals each and received intratracheal instillation of sterile saline or silica suspension in different patterns: saline once at day 0, saline once/week, crystalline silica 50 mg at day 0, crystalline silica 6.25 mg/week. The rats were sacrificed at 8 weeks. The lung tissues were collected for pathological analyses, and determining mRNA and protein levels of related fibrogenic molecules. Results: The collagen deposition induced by crystalline silica in lung tissues were increased. The mRNA levels of IL-1β and Col I in group c were significantly elevated than those in group saline once at day 0 (all P<0.05). Compared with group saline once/week, the mRNA levels of IL-1β, TGF-β, Col I, Col III and CTGF were significantly increased in group crystalline silica 6.25 mg/week (P<0.05) . The mRNA levels of Col I and CTGF were significantly increased in group crystalline silica 6.25 mg/week in comparison with those in group crystalline silica 50 mg at day 0 (P<0.05) . Conclusion Given the same cumulative dose of crystalline silica, multiple exposures were likely to induce more severe lung fibrosis.

OBJECTIVETo analyze two fetuses with multiple malformations revealed by ultrasonography using single nucleotide polymorphism array (SNP array), and to explore the strategy for the prenatal diagnosis of 1p36 deletion syndrome.

METHODSAmniocentesis was performed on the two pregnant women. Amnion fluid cells were cultured, and karyotypes of the fetuses were determined through G-banding analysis. Whole genome SNP array was used to detect genomic anomalies of the two fetuses. The karyotypes of their parents were determined through G-banding analysis of peripheral venous blood samples.

RESULTSG-banding analysis showed a 46,XY,add(1p36)? and a 46,XX,add(1p36)? karyotype for fetuses 1 and 2, respectively. SNP array analysis showed that the fetus 1 had arr[19]1p36.33p36.32 (752 566 - 3 393 462)×1 and 7q35q36.3 (144 480 549 - 159 119 486)×3, and fetus 2 had arr[19]1p36.33p36.23 (752 566 - 8 362 754)×1, 6p25.3p22.3 (204 909 - 20 182 185)×3. The mother of fetus 1 had a 46,XX,t(1;7)(p36;q35) karyotype, and the mother of fetus 2 had a 46,XX,t(1;6)(p36;p22) karyotype. The karyotypes of both fathers appeared to be normal.

CONCLUSIONSNP array has the advantages such as high sensitivity and high accuracy for prenatal diagnosis, and can provide more detailed information for genetic counseling of 1p36 deletion syndrome.

Adult ; Amniocentesis ; Chromosome Banding ; Chromosome Deletion ; Chromosome Disorders ; diagnosis ; Chromosomes, Human, Pair 1 ; Female ; Humans ; Karyotyping ; Polymorphism, Single Nucleotide ; Pregnancy ; Prenatal Diagnosis

Objective: To investigate the modulation role of Gas6 in silica-induced inflammatory effect on human macrophages. Methods: Differentiated THP-1 macrophages were exposed to different concentrations of silica for 6 h and 24 h. Additionally, silica-activated macrophages were treated with different concentrations of recombine human Gas6 and Gas6 antibody respectively. Cell viabilities were determined by CCK-8 kit. Expression levels of Gas6 and inflammatory cytokines (TNF-α, IL-1β and IL-6) were measured by ELISA assay kits. Results: Silica particles induced clear dose-dependent decreases of cell viability and Gas6 expression at both 6 h and 24 h. The cell viability of 24 h is lower than 6 h at the same concentration of silica (P<0.05). Furthermore, silica activated macrophages treated with Gas6 antibody induced significant decreases of Gas6 both at 6 h and 24 h (P<0.05). After pretreated with various concentrations of Gas6 antibody, silica induced higher expressions of inflammatory cytokines (TNF-α, IL-1β, IL-6) in dose-dependent manners at two time points. Addition of exoge-nous Gas6 significantly suppressed silica-induced inflammatory cytokines concentrations mentioned above in the cell culture supernatants in clear dose-dependent manners. Conclusion Exogenous Gas6 could inhibit the secre-tion of inflammatory cytokines in macrophages, while the block of Gas6 might enhance this inflammation.