Objective To explore the effect of Rhizoma Polygonati(RP)on arterial aging in naturally aging Wistar rats.Methods SPF Wistar rats aged 72 weeks were divided randomly divided into 4 groups:an old group and RP low,medium,and high-dose groups(n=14 rats per group).Another 14 male SPF Wistar rats aged 8～12 weeks were selected as the young group.Rats in the RP high,medium,and low-dose groups were administered with 4,2,and 1 g/kg RP,respectively,by gavage,and rats in the old and young groups were given the same amount of distilled water once a day for 12 weeks.Seven rats from each group were sacrificed under anesthesia at weeks 4 and 12 and aortas were isolated.The relative smooth muscle cell(SMC)and collagen fiber(CF)contents were analyzed,total antioxidant capacity(T-AOC),glutathione peroxidase(GSH-Px),superoxide dismutase(SOD),and malondialdehyde(MDA)levels were measured,and the expression levels of cell cycle-associated proteins in arterial tissue were detected by Western Blot.Results Rats in the old group showed obvious signs of vascular aging but there was no significant changes in arterial vascular tissue indexes in the old group with increased age.Aortas were obviously injured,relative contents of SMC and CF were significantly increased(P＜0.01),T-AOC,SOD,and GSH-Px contents were significantly decreased and MDA was increased(P＜0.01)in the old group compared with the young group at 4 and 8 weeks,and expression levels of cell cycle-associated proteins were significantly up-regulated(P＜0.01).RP intervention significantly decreased the relative SMC and CF contents and MDA levels(P＜0.05 or P＜0.01)and significantly increased T-AOC,SOD,and GSH-Px(P＜0.05 or P＜0.01).Expression levels of cell cycle-associated proteins were also significantly decreased(P＜0.05 or P＜0.01).High-dose RP had the greatest effect.Conclusions Arterial aging is relatively stable in the short term in naturally aging rats.RP could delay arterial aging in naturally aging rats by regulating the level of oxidative stress and the expression of cell cycle-associated proteins.

This paper reported a case of fetal congenital chloride diarrhea (CCD) indicated by prenatal ultrasound and confirmed by whole-exome sequencing. At 26 weeks and two days of gestation, a routine prenatal ultrasound revealed fetal bowel dilation and numerous floating echogenic particles in the amniotic fluid, suggesting the possibility of CCD. Multiple follow-up ultrasounds in late pregnancy showed persistent bowel dilation, polyhydramnios with numerous floating echogenic particles, and fetal development larger than the gestational age. Whole-exome sequencing and Sanger validation revealed two compound heterozygous mutations in the fetal SLC26A3 gene: c.2006C>A (p.S669*) inherited from the mother and c.1355T>A (p.L452Q) inherited from the father, leading to a diagnosis of CCD. Postnatally, the infant exhibited persistent watery diarrhea. Based on prenatal ultrasound and diagnostic results, the infant was immediately given intravenous and oral electrolyte supplementation after birth, preventing severe electrolyte imbalance. As of June 2024, the infant was five months old, with follow-up showing good growth and development.

Objective To explore the effect of Rhizoma Polygonati(RP)on arterial aging in naturally aging Wistar rats.Methods SPF Wistar rats aged 72 weeks were divided randomly divided into 4 groups:an old group and RP low,medium,and high-dose groups(n=14 rats per group).Another 14 male SPF Wistar rats aged 8～12 weeks were selected as the young group.Rats in the RP high,medium,and low-dose groups were administered with 4,2,and 1 g/kg RP,respectively,by gavage,and rats in the old and young groups were given the same amount of distilled water once a day for 12 weeks.Seven rats from each group were sacrificed under anesthesia at weeks 4 and 12 and aortas were isolated.The relative smooth muscle cell(SMC)and collagen fiber(CF)contents were analyzed,total antioxidant capacity(T-AOC),glutathione peroxidase(GSH-Px),superoxide dismutase(SOD),and malondialdehyde(MDA)levels were measured,and the expression levels of cell cycle-associated proteins in arterial tissue were detected by Western Blot.Results Rats in the old group showed obvious signs of vascular aging but there was no significant changes in arterial vascular tissue indexes in the old group with increased age.Aortas were obviously injured,relative contents of SMC and CF were significantly increased(P＜0.01),T-AOC,SOD,and GSH-Px contents were significantly decreased and MDA was increased(P＜0.01)in the old group compared with the young group at 4 and 8 weeks,and expression levels of cell cycle-associated proteins were significantly up-regulated(P＜0.01).RP intervention significantly decreased the relative SMC and CF contents and MDA levels(P＜0.05 or P＜0.01)and significantly increased T-AOC,SOD,and GSH-Px(P＜0.05 or P＜0.01).Expression levels of cell cycle-associated proteins were also significantly decreased(P＜0.05 or P＜0.01).High-dose RP had the greatest effect.Conclusions Arterial aging is relatively stable in the short term in naturally aging rats.RP could delay arterial aging in naturally aging rats by regulating the level of oxidative stress and the expression of cell cycle-associated proteins.

Objective To observe the cardioprotection of Rhizoma Polygonati(RP)in natural aging rat and its molecular mechanism.Methods 16 SD rats aged 2 months were selected as the young group,another 64 SD rats aged 18 months were randomly divided into 4 groups:an old group,a RP-low,a RP-medium and a RP-high dose group,with 16 rats in each group.The RP-low,RP-medium and RP-high dose groups were administered of RP(1,2,4 g·kg-1)by gavage,the old and young groups were given the same amount of distilled water once a day for 12 weeks.At week 4 and 12,eight rats from each group were sacrificed under anesthesia and hearts were isolated.Then cardiac weight index(CI)were measured and the histopathologic observation was assessed.The contents of total antioxidant capacity(T-AOC),glutathione peroxidase(GSH-Px),superoxide dismutase(SOD)and malondialdehyde(MDA)were measured,and the expression of ataxia-telangiectasia mutated gene(ATM),ATM and Rad3-related kinase(ATR)-related protein in cardiac tissue were detected.Results With the increase of weeks of age,the fibrosis area in the old group was increased.The content of GSH-Px was decreased while MDA was increased;the expressions of Chk1 and Chk2 were also up-regulated(P<0.05).At week 4 or 12,compared to the young group,the CI was reduced,and the contents of T-AOC,SOD,GSH-Px were decreased while MDA was increased;the expression of ATM,ATR-related proteins were all significantly up-regulated in cardiac tissue of old group(P<0.05).After RP treatment,the CI was elevated,the structure of cardiomyocytes were intact and the myocardial fibers were arranged neatly,the fibrosis area was lowered.The contents of T-AOC,GSH-Px,SOD were increased while MDA was decreased.The expression of ATM,ATR-related proteins were significantly down-regulated in cardiac tissue(P<0.05).Conclusion RP could protect the heart in natural aging rats,and its mechanism may be related to the regulation of DNA damage response ATM,ATR signaling pathway.

This paper reported a case of fetal congenital chloride diarrhea (CCD) indicated by prenatal ultrasound and confirmed by whole-exome sequencing. At 26 weeks and two days of gestation, a routine prenatal ultrasound revealed fetal bowel dilation and numerous floating echogenic particles in the amniotic fluid, suggesting the possibility of CCD. Multiple follow-up ultrasounds in late pregnancy showed persistent bowel dilation, polyhydramnios with numerous floating echogenic particles, and fetal development larger than the gestational age. Whole-exome sequencing and Sanger validation revealed two compound heterozygous mutations in the fetal SLC26A3 gene: c.2006C>A (p.S669*) inherited from the mother and c.1355T>A (p.L452Q) inherited from the father, leading to a diagnosis of CCD. Postnatally, the infant exhibited persistent watery diarrhea. Based on prenatal ultrasound and diagnostic results, the infant was immediately given intravenous and oral electrolyte supplementation after birth, preventing severe electrolyte imbalance. As of June 2024, the infant was five months old, with follow-up showing good growth and development.

Objective To observe the cardioprotection of Rhizoma Polygonati(RP)in natural aging rat and its molecular mechanism.Methods 16 SD rats aged 2 months were selected as the young group,another 64 SD rats aged 18 months were randomly divided into 4 groups:an old group,a RP-low,a RP-medium and a RP-high dose group,with 16 rats in each group.The RP-low,RP-medium and RP-high dose groups were administered of RP(1,2,4 g·kg-1)by gavage,the old and young groups were given the same amount of distilled water once a day for 12 weeks.At week 4 and 12,eight rats from each group were sacrificed under anesthesia and hearts were isolated.Then cardiac weight index(CI)were measured and the histopathologic observation was assessed.The contents of total antioxidant capacity(T-AOC),glutathione peroxidase(GSH-Px),superoxide dismutase(SOD)and malondialdehyde(MDA)were measured,and the expression of ataxia-telangiectasia mutated gene(ATM),ATM and Rad3-related kinase(ATR)-related protein in cardiac tissue were detected.Results With the increase of weeks of age,the fibrosis area in the old group was increased.The content of GSH-Px was decreased while MDA was increased;the expressions of Chk1 and Chk2 were also up-regulated(P<0.05).At week 4 or 12,compared to the young group,the CI was reduced,and the contents of T-AOC,SOD,GSH-Px were decreased while MDA was increased;the expression of ATM,ATR-related proteins were all significantly up-regulated in cardiac tissue of old group(P<0.05).After RP treatment,the CI was elevated,the structure of cardiomyocytes were intact and the myocardial fibers were arranged neatly,the fibrosis area was lowered.The contents of T-AOC,GSH-Px,SOD were increased while MDA was decreased.The expression of ATM,ATR-related proteins were significantly down-regulated in cardiac tissue(P<0.05).Conclusion RP could protect the heart in natural aging rats,and its mechanism may be related to the regulation of DNA damage response ATM,ATR signaling pathway.

Objective:To analyze the trends in refractive error and ocular biological parameters in elementary school students over 5 years, and to investigate the patterns of change before and after myopia onset.Methods:A cohort study was adopted.A total of 1 986 first-grade students from the Anyang Childhood Eye Study were enrolled in this cohort study and their right eye data were taken for analysis, including 1 126 boys and 860 girls.Every year, cycloplegic autorefraction was performed with 1% cyclopentolate eyedrops to obtain the spherical equivalent (SE).The axial length (AL), anterior chamber depth, lens thickness, mean corneal curvature (Km) and other parameters were obtained by ocular biometry.The lens refractive power (LP) was calculated using the Bennett formula.The subjects were assigned to persistent myopia group, non-myopia group and new onset myopia group.According to the age of myopia onset, the new onset myopia group was subdivided into the 8-, 9-, 10-, 11- and 12-year-old myopia groups to compare the differences in refractive error and ocular bioparameters among groups at different time points of follow-up.This study adhered to the Declaration of Helsinki.The study protocol was approved by the Ethics Committee of Beijing Tongren Hospital, Capital Medical University (No.TRECKY2018-030).Written informed consent form was obtained from the guardians of each subject.Results:All children had a gradual SE drift toward myopia and a gradual increase in the AL with age, and there were significant differences in SE and AL between adjacent follow-up ages within the three groups (all at P<0.05).The earlier the onset of myopia, the higher the myopia SE and the longer the AL of the eye at the same follow-up age, the differences in SE between adjacent groups were statistically significant (all at P<0.05), and the differences in AL between adjacent groups at the follow-up age of 8 to 12 years were statistically significant (all at P<0.05).In the nonmyopia group, SE drifted toward emmetropia at a slow and steady rate of (-0.23±0.27)D/year, and AL also increased slowly and steadily at (0.18±0.13)mm/year.In the new onset myopia group, the changes in SE in the third, second, and first years before myopia onset were (-0.32±0.25), (-0.45±0.33), and (-0.98±0.44)D, and the increases in AL were (0.25±0.12), (0.32±0.15), and (0.48±0.19)mm, respectively.Both SE and AL change rates began to accelerate before myopia onset and slowed down after myopia onset, with statistically significant differences in the overall comparison of SE and AL change rates at different time intervals before and after myopia onset (all at P<0.001).The AL at myopia onset in boys was (24.11±0.70)mm, which was longer than (23.60±0.66)mm in girls ( t=159.71, P<0.01).LP decreased with age in all groups, with a faster rate before the age of 9 years and a slower rate after the age of 9 years.The mean decrease rate in LP was (-0.48±0.19), (-0.44±0.20), (-0.49±0.16), (-0.51±0.18), and (-0.48±0.19)D/year in the persistent myopia group and 8~11-year-old myopia group, respectively, which were significantly faster than -0.42±0.17 D/year in 12-year-old myopia group and (0.37±0.15)D/year in nonmyopia group (all at P<0.05).There was no statistically significant difference in Km among groups at different follow-up ages (all at P>0.05). Conclusions:The AL begins to grow at an accelerated rate 3 years before myopia onset, and the increase rate of the AL slows down after the onset of myopia, but it is still significantly faster than that of non-myopic children.In this process, the decrease in LP plays a compensatory role; there is no significant change in corneal curvature.The AL of males at the onset of myopia is longer than that of females at the same age.AL is an important indicator for the prevention and control of myopia.It is important to consider gender differences and to pay more attention to the growth rate when assessing AL.

Objective To evaluate the association between preoperative serum thyroglobulin concentration and aggressive behavior of papillary thyroid cancer(PTC).Methods A total of 334 PTC patients diagnosed by surgical pathology treated in our hospital from Jan.2013 to Dec.2017 were retrospectively reviewed.Patients were divided into two groups according to Tg levels and clinicopathological characteristics between the two groups were compared.Binary logistic regression analysis was conducted to evaluate the factors influencing extrathyroidal extension and lymph node metastasis of PTC.Results High level of preoperative serum Tg was signifcantly associated with old age,multifocality,larger maximum tumor size,more frequent extrathyroidal extension,lymph node metastasis,and advanced T and TNM stage(P＜0.05).Maximum tumor diameter ＞2 cm(P=0.031) and preoperative serum Tg level ＞17.21 ng/ml(P=0.028) were independent risk factors for extrathyroidal extension.Maximum tumor diameter ＞2 cm(P=0.007) and preoperative serum Tg levels ＞25.40 ng/ml (P=0.016) were independent risk factors for lymph node metastasis,whereas female was a significant protective predictive factor(P＜0.001).Conclusion Preoperative serum Tg levels may serve as an independent risk marker for extrathyroidal extension and lymph node metastasis of PTC,and partly contributes to predict aggressive behavior of PTC.

Objective To investigate the effect of mycophenolate mofetil combined with small dose of glucocorticoids on the serum ions and β2-GPI/ox-LDL of patients with IgA nephropathy.Methods A total of 68 patients with IgA nephropathy were randomly divided into two groups, 34 cases in each group.Control group was treated with small dose of glucocorticoid, while the study group was treated with mycophenolate mofetil on the basis of control group.Serum markers and adverse reactions were recorded during the treatment.Results After treatment, levels of serum phosphorus and β2-GPI/ox-LDL decreased significantly in both groups, levels of serum calcium increased significantly, Scr, BUN, CysC and 24 h urine protein decreased significantly, levels of serum TGF-β1, IL-4 decreased significantly, IFN-γ increased significantly, levels of serum VEGF, ET-1 and MMP-9 decreased significantly (P<0.05).Compared with the control group, levels of serum phosphorus and β2-GPI/ox-LDL in the study group were significantly lower, levels of blood calcium were significantly higher, levels of Scr, BUN, CysC and 24 h urine protein were significantly lower, levels of serum TGF-β1, IL-4 were significantly lower, IFN-γ were significantly higher, and levels of serum VEGF, ET-1 and MMP-9 were significantly lower (P<0.05).Conclusion Mycophenolate mofetil combined with small dose of glucocorticoids is effective in the treatment of patients with IgA nephropathy, and it can reduce the levels of serum ions and β2-GPI/ox-LDL.

ObjectiveTo investigate comprehensive treatment and obstruction in adherence of the patients newly diagnosed with breast cancer,and to provide the theoretical basis for improving the comprehensive treatment adherence.Methods A total of 22 patients newly diagnosed with breast cancer received semi-structured interview by phenomenological research approach of qualitative research. Colaizzi′s data analysis method was performed to analyze and conclude the theme.Results Eight themes of the application were obtained from the experience of 22 patients:economic difficulties,weak family support,serious treatment side effects,tortile religious faith,incorrect internet information,indifference in combined treatment,complex formalities and complications. Conclusions The affecting factors,such as economic difficulties,are the most frequently endorsed barrier to combined treatment compliance. The management of affecting factors is critically significant to increase patients′ compliance to comprehensive treatment. Medical staff should offer individual economic and medical information as well as emotion supports,and encourage breast cancer patients to actively complete the comprehensive treatment.